CONNECTING ARRANGEMENT, CONNECTING SYSTEM, CONTAINER AND CONTAINER SYSTEM

Abstract

A fluidic connection for producing a connection between a first container and a second container, wherein, for producing a fluidic connection, a first and second connecting arrangement can be coupled to one another and an opening brought about by the coupling, as a result of which a passage is produced which is suitable for interconnecting the interiors of the containers.

Claims

1-118. (canceled)

119. A connecting arrangement for a connecting system for producing a fluidic connection between a first container and a second container, it being possible, for producing the fluidic connection, for the connecting arrangement to be coupled to a second connecting arrangement and the connecting system being designed to bring about an opening by coupling, as a result of which a passage is produced which is suitable for interconnecting the interiors of the containers, the connecting arrangement comprising a tubular coupling arrangement having a tube axis, the coupling arrangement being closed in an original state and being openable to form the passage by deforming the coupling arrangement transversely to a longitudinal axis of the tube, wherein the coupling arrangement comprises a step portion that extends substantially radially relative to the longitudinal axis of the tube and is arranged between a first portion extending at least substantially in parallel with the tube axis and a second portion extending at least substantially in parallel with the longitudinal axis of the tube.

120. The connecting arrangement of claim 119, wherein the step portion forms a bellows together with the coupling arrangement.

121. The connecting arrangement of claim 119, wherein the coupling arrangement is non-circular in cross section, as a result of which it has at least one first half-axis having a minimum length and at least one second half-axis having a maximum length, and the step portion having a greater extension in alignment with or in the extension of the first half-axis than in alignment with the second half-axis.

122. The connecting arrangement of claim 121, wherein the step portion forms a bellows in alignment with or in the extension of the first half-axis.

123. The connecting arrangement of claim 121, wherein the step portion tapers in the direction of the alignment with the second half-axis.

124. The connecting arrangement of claim 121, wherein the step portion tapers to zero in the direction of the alignment with or in the extension of the second half-axis, such that a step portion is not provided in alignment with the second half-axis.

125. The connecting arrangement of claim 121, wherein the radial extension of the step portion, proceeding from the alignment with or in the extension of the second half-axis, increases on either side in the direction of the alignment with or in the extension of the first half-axis.

126. The connecting arrangement of claim 119, wherein the step portion adapts the shape of the coupling arrangement, which is non-circular in cross section, to a circular shape.

127. The connecting arrangement of claim 119, wherein the step portion lies at least substantially in a plane which is perpendicular to the coupling direction.

128. A connecting system for producing a fluidic connection between a first container and a second container, wherein the connecting system for producing a fluidic connection comprises a first connecting arrangement and a second connecting arrangement, which are couplable to one another and are configured to bring about an opening by coupling, as a result of which a passage is produced which is suitable for interconnecting the interiors of the containers, one of the first and second connecting arrangements comprising a tubular sealing arrangement and another of the first and second connecting arrangements comprising a structure that is complementary to the tubular sealing arrangement, so that the tubular sealing arrangement comes into sealing contact with the complementary structure by means of a translational relative movement of the connecting arrangements along a coupling axis, the sealing arrangement comprising an outwardly facing circumferential sealing surface for sealing contact with an inwardly facing circumferential sealing surface of the complementary structure, wherein, the other of the first and second connecting arrangements comprises one or more pressing elements that are offset inwards with respect to the coupling axis relative to the circumferential sealing surface of the complementary structure in order to press the circumferential sealing surface of the tubular sealing arrangement against the circumferential sealing surface of the complementary structure.

129. The connecting system of claim 128, wherein the tubular sealing arrangement has different wall thicknesses at an open edge along a circumferential line or surface.

130. The connecting system of claim 128, wherein the connecting arrangement comprises a tubular coupling arrangement having a tube axis, the coupling arrangement being closed in an original state and being openable to form the passage by deforming the coupling arrangement transversely to its tube axis, the coupling arrangement being non-circular in cross section, as a result of which it has at least one first half-axis having a minimum length and at least one second half-axis having a maximum length, and the tubular sealing arrangement having a lower wall thickness in alignment with the first half-axis than in alignment with the second half-axis.

131. The connecting system of claim 128, wherein the pressing elements is/are pins extending at least substantially in parallel with the coupling axis.

132. Connecting system of claim 131, wherein the pin or pins have a radially outwardly directed contact surface.

133. The connecting system of claim 132, wherein the contact surface is spaced apart from a foot point of the pin or the respective pins.

134. The connecting system of claim 132, wherein the contact surface protrudes radially outwards, such that an undercut results between the contact surface and the foot point of the pin in the direction of the coupling axis.

135. Connecting system for producing a fluidic connection between a first container and a second container, wherein the connecting system for producing a fluidic connection comprises a first connecting arrangement and a second connecting arrangement, which can be coupled to one another and are designed to bring about an opening by coupling, as a result of which a passage is produced which is suitable for interconnecting the interiors of the containers, the first connecting arrangement comprising a tubular sealing arrangement and the second connecting arrangement comprising a structure that is complementary to the tubular sealing arrangement, and the sealing arrangement comprising an outwardly facing circumferential sealing surface for sealing contact with the circumferential sealing surface of the receptacle, wherein, the first connecting arrangement comprises a bead along the circumferential surface of the tubular sealing arrangement, which bead has an oversize relative to the circumferential sealing surface of the structure.

136. The connecting system of claim 135, wherein the bead forms an uninterrupted sealing surface on a radially outwardly facing circumferential line.

137. The connecting system of claim 135, wherein the bead has an oversize relative to a clear width between the outwardly facing circumferential surface and one or more pressing elements.

138. The connecting system of claim 137, wherein the pressing elements exert a radial pressure on the sealing arrangement in the coupled state of the connecting arrangements, by means of which the sealing arrangement is brought into tight contact with the inwardly facing circumferential sealing surface of the structure.

139. A connecting arrangement for a connecting system for producing a fluidic connection between a first container and a second container, hereinafter referred to as the first connecting arrangement, it being possible, for producing the fluidic connection, for the first connecting arrangement to be coupled to a second connecting arrangement and the connecting system being designed to bring about an opening by coupling the first connecting arrangement to the second connecting arrangement, as a result of which a passage is produced which is suitable for interconnecting the interiors of the containers, the first connecting arrangement comprising a tubular coupling arrangement having a tube axis, the coupling arrangement being closed in an original state and being openable to form the passage by deforming the coupling arrangement transversely to its tube axis, the first connecting arrangement comprising a cutting edge at an open end of the tubular coupling arrangement for opening the second connecting arrangement by means of a translational relative movement of the connecting arrangements relative to one another along the tube axis, and the tubular coupling arrangement comprising a circumferential wall, wherein, the circumferential wall of the tubular coupling arrangement has a radius or external diameter that increases starting from the cutting edge.

140. The connecting arrangement of claim 139, wherein the increasing radius is formed by an inclined step and/or a cone jacket portion.

141. The connecting arrangement of claim 140, wherein the step and/or the cone jacket portion is inclined relative to the tube axis at an angle.

142. The connecting arrangement of claim 141, wherein the step and/or the conical jacket portion encloses an angle of more than 15 degrees and/or less than 75 degrees together with the tube axis.

143. The connecting arrangement of claim 141, wherein the angle is obtuse relative to an adjacent portion of the tubular coupling arrangement which has the cutting edge.

144. The connecting arrangement of claim 139, wherein the radius, which is lower in the region of the cutting edge and increases therefrom, forms an insertion aid.

145. The connecting arrangement of claim 140, wherein the step and/or the conical jacket portion is formed on an end face of a portion provided between two weakened regions of the coupling arrangement.

146. Connecting arrangement for a connecting system for producing a fluidic connection between a first container and a second container, hereinafter referred to as the first connecting arrangement, it being possible, for producing the fluidic connection, for the first connecting arrangement to be coupled to a second connecting arrangement and the connecting system being designed to bring about an opening by coupling, as a result of which a passage is produced which is suitable for interconnecting the interiors of the containers, the first connecting arrangement comprising a tubular coupling arrangement, the tubular coupling arrangement comprising a cutting edge at an open edge of the tubular coupling arrangement, the cutting edge being designed to open a closure of the second connecting arrangement, wherein, the cutting edge has at least or exactly two protruding, preferably beak-shaped, piercing sections which are configured, when coupling the connecting arrangements, by translational relative movement, that both piercing sections essentially simultaneously act on the second connecting arrangement such that the closure is opened by breaking it at two distinct positions essentially simultaneously.

147. The connecting arrangement of claim 146, wherein the piercing sections form piercing elements, wherein the piercing sections have a similar shape.

148. The connecting arrangement of claim 146, wherein the piercing sections are arranged on opposite sides of the cutting edge.

149. The connecting arrangement of claim 146, wherein the piercing sections are arranged at the open edge of the tubular coupling arrangement at positions where the tubular coupling arrangement has its maximum cross section.

150. The connecting arrangement of claim 146, wherein the piercing sections of the cutting edge are configured to open the second connecting arrangement as a result of the closure or its frangible point of the second connecting arrangement being perforated or pierced by means of both or all piercing sections of the cutting edge.

151. The connecting arrangement of claim 146, wherein the cutting edge or piercing sections correspond in its or their orientation and position to the frangible point of the second connecting arrangement, such that bringing the connecting arrangements together leads to the piercing sections of the cutting edge being applied to the frangible point, as a result of which the frangible point can be severed, starting at the initial points of application of the cutting edge, namely, the piercing sections.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0286] FIG. 1 shows a longitudinal section through a container comprising the proposed first connecting arrangement before the coupling;

[0287] FIG. 2 shows a longitudinal section through a container comprising the proposed second connecting arrangement before the coupling;

[0288] FIG. 3 is a perspective view of the first connecting arrangement;

[0289] FIG. 4 is a perspective view of the second connecting arrangement;

[0290] FIG. 5 shows a longitudinal section through the container system comprising the proposed connecting system in a first connecting position;

[0291] FIG. 6 shows a longitudinal section through the container system comprising the proposed connecting system in a second connecting position;

[0292] FIG. 7A shows a longitudinal section through a container system with the proposed connecting system and with the fluidic connection made;

[0293] FIG. 7B shows a longitudinal section through a container system with the proposed connecting system and with the fluidic connection made;

[0294] FIG. 8 shows a longitudinal section through the proposed connecting system in another embodiment in the first connecting position;

[0295] FIG. 9 shows a section of the connecting system in the region of the sealing arrangement;

[0296] FIG. 10 shows a section of the connecting system in the region of the sealing arrangement;

[0297] FIG. 11 is a perspective view of a third connecting arrangement;

[0298] FIG. 12 is a perspective view of a closure cap of the third connecting arrangement;

[0299] FIG. 13 is a perspective view of a fourth connecting arrangement;

[0300] FIG. 14 is a perspective view of a closure cap of the fourth connecting arrangement;

[0301] FIG. 15 shows a cross section through the first connecting arrangement;

[0302] FIG. 16 shows a longitudinal section through the proposed connecting system in the first connecting position;

[0303] FIG. 17 is a perspective view of an alternative embodiment of the proposed connecting arrangement;

[0304] FIG. 18 is a perspective view of an alternative of the closure cap of the alternative embodiment of the proposed connecting arrangement;

[0305] FIG. 19 shows a combination of the connecting arrangement according to FIG. 17 and the closure cap according to FIG. 18 while the closure cap is cut away partially; and

[0306] FIG. 20 is a cross sectional view of the combination of the connecting arrangement and the closure cap according to FIG. 19 along a cutting plane based on the cutting plane used for FIG. 19 moved slightly radially inwardly, thus showing engaged blocking elements.

DETAILED DESCRIPTION OF THE INVENTION

[0307] In the following description of preferred embodiments by reference to the drawings, the same or corresponding reference signs have been used for the same or similar components or parts, where similar or identical advantages and properties may be achieved even if the associated description has not been repeated.

[0308] FIG. 1 shows a longitudinal section through a proposed first container 1 comprising a proposed first connecting arrangement 2 and FIG. 2 shows a longitudinal section through a proposed second container 3 comprising a proposed second connecting arrangement 4. The combination of the first connecting arrangement 2 and the second connecting arrangement 4 forms the proposed connecting system 5.

[0309] The proposed connecting system 5 is designed to produce a fluidic connection F or passage P which is suitable for fluidically connecting an interior 6 of the first container 1 to an interior 7 of the second container 2. The passage P is indicated in FIG. 7A and FIG. 7B by the arrow F/P. This will be discussed in greater detail in connection with the discussion of FIG. 7A and FIG. 7B.

[0310] In this case, the connecting system 5 is configured to produce a fluidic connection F between the first container 1 and the second container 3. The containers 1, 3 together preferably form a container system 8.

[0311] However, the first connecting arrangement 2, the second connecting arrangement 4 and/or the connecting system 5 can also be implemented independently of the first container 1 and/or the second container 3. It should be noted here that the first container 1 may be formed from a first container blank 9 and the first connecting arrangement 2, but the first connecting arrangement 2 may also be implemented separately and used in a different way. The same applies to the second container 3, which may be formed from a second container blank 10 and the second connecting arrangement 4, but the second connecting arrangement 4 may also be implemented separately and used in a different way.

[0312] In the example shown, the first container 1 has a removal opening 11, which can provide access to the interior 6 of the first container 1 for the purpose of removing contents. In the example shown, the second container 3 also has a removal opening 12, which can provide access to the interior 7 of the second container 3 for the purpose of removing contents. At least in one of the containers 1, 3, the removal opening 11, 12 may be omitted.

[0313] The removal openings 11, 12 more preferably each have a removal opening closure 13, 14, in particular what is known as a septum.

[0314] Furthermore, the containers 1, 3 are bottles in the example shown. These have a bottle neck 15, 16 adjacent to the relevant removal opening 11, 12.

[0315] The first connecting arrangement 2 preferably comprises a tubular coupling arrangement 17. The coupling arrangement 17 is closed by a closure 18 in a delivery state or initial state. In the example shown, the closure 18 is formed by a closure plate. However, this is not absolutely necessary in each case.

[0316] The second connecting arrangement 4 preferably comprises a mouth 19 which, in a delivery state or initial state, is preferably closed by a closure 20. This is not necessarily the case. In principle, it is namely also possible for the second connecting arrangement 4 to have a mouth 19 that is not closed.

[0317] The coupling arrangement 17 of the first connecting arrangement 2 preferably comprises a cutting edge 21. The cutting edge 21 is designed to open the closure 20 of the second connecting arrangement 4. For this purpose, the cutting edge 21 can act on the closure 20 of the second connecting arrangement 4, particularly preferably in a separating manner, such that the second closure arrangement 4 is opened and the mouth 19 is exposed.

[0318] The first connecting arrangement 2 and the second connecting arrangement 4 can preferably be coupled by being inserted into one another along a coupling axis 22. The corresponding cutting edge 21 and closure 20 or mouth 19 are preferably of the type whereby the cutting edge 21 and closure 20 or mouth 19 have a similar shape and orientation, such that a translational movement of the first connecting arrangement 2 relative to the second connecting arrangement 4 results in the cutting edge 21 perforating the closure 20 and thus producing or exposing the mouth 19.

[0319] FIG. 3 is a perspective view of the first connecting arrangement, and FIG. 4 is a perspective view of the second connecting arrangement, specifically from an outside view or from a side facing away from the respective interior 6, 7 of an associated container 1, 3, respectively.

[0320] The closure 20 of the second connecting arrangement 4 preferably has a frangible point 23, in particular in the form of a line of weakness. In the example shown, the closure 20 is formed by a closure plate, which is circumferentially delimited by the frangible point 23.

[0321] The cutting edge 21 preferably corresponds to the frangible point 23. In particular, the course of the cutting edge 21 corresponds at least in portions to the line of weakness formed by the frangible point 23.

[0322] For producing the fluidic connection F, the first connecting arrangement 2 is preferably coupled to the second connecting arrangement 4 by being moved translationally relative to one another and thereby being inserted into one another. In any case, the second connecting arrangement 4 is preferably partially received by the first connecting arrangement 2, or vice versa.

[0323] FIG. 5 shows a longitudinal section through the container system 8 comprising the proposed connecting system 5 in a first connecting position. In this connecting position, the first connecting arrangement 2 and the second connecting arrangement 4 are partially inserted into one another. In this connecting position, the first connecting arrangement 2 can be locked to the second connecting arrangement 4, preferably in a non-detachable manner. The cutting edge 21 is at least partially opposite the frangible point 23, but does not yet separate it in the first connecting position shown in FIG. 5.

[0324] FIG. 6 shows a longitudinal section through the container system 8 comprising the proposed connecting system 5 in a second connecting position. In this connecting position, the cutting edge 21 of the first connecting arrangement 2 has penetrated the frangible point 23 of the second connecting arrangement 4. For this purpose, the first connecting arrangement 2 and the second connecting arrangement 4 have been further inserted into one another translationally, such that the cutting edge 21 has a separating effect on the frangible point 23 and has caused the mouth 19 of the second closure arrangement 4 to be opened or exposed.

[0325] As indicated in FIG. 6 by the directional arrows 24, 25 extending in the opposite direction, the connecting arrangements 2, 4 or associated containers 1, 3 are now rotated relative to one another about the coupling axis 22. At this point in time, the coupling arrangement 17 of the first connecting arrangement 2 is surrounded by the mouth 19 of the second connecting arrangement 4.

[0326] The coupling arrangement 17 and the mouth 19 are complementary to one another and are non-circular, in the example shown oval, in cross section perpendicularly to the coupling axis 22. As a result, a rotation of the connecting arrangements 2, 4 relative to one another about the coupling axis 22 brings about preferably elastic deformation of the coupling arrangement 17.

[0327] FIG. 7A shows a longitudinal section through a container system with the proposed connecting system and with the fluidic connection made after the connecting arrangements 2, 4 having been rotated relative to one another. The rotation causes the coupling arrangement 17 to have deformed such that the closure 18 has broken due to the distortion caused by the deformation and thereby has caused an opening in the first connecting arrangement 2.

[0328] The connecting arrangements 2, 4 are preferably rotatable between a first position, which corresponds to the position of the connecting arrangements 2, 4 after they have been translationally inserted into one another without rotation, and an end position. The connecting arrangements 2, 4 are preferably rotatable relative to one another by at least substantially 90 degrees.

[0329] In FIG. 7A, the rotation is partial, in particular approximately 60 degrees. This is sufficient to form a passage P of which the opening width is increased by means of further rotation and the associated deformation of the coupling arrangement 17.

[0330] FIG. 7B shows a longitudinal section through a container system with the proposed connecting system and with the fluidic connection F made, according to which the connecting arrangements 2, 4 have been further rotated relative to one another or as far as a stop or up to an end position, in particular by approximately 90 degrees. The rotation causes the coupling arrangement 17 to have deformed such that the closure 18 has broken due to the distortion caused by the deformation and thereby has caused an opening in the first connecting arrangement 2. Compared with the partial rotation of the connecting arrangements 2, 4 relative to one another, as for example shown in FIG. 7A, the opening width of the passage P is increased.

[0331] As for example shown in FIG. 7B by the arrow F/P, the fluidic connection F or passage P has been formed by the opening in the first connecting arrangement 2. Through the passage P, the contents of the interior 6 of the first container 1 can now reach the interior 7 of the second container 3, and vice versa. Accordingly, the contents can be mixed.

[0332] In principle, it is possible for the first connecting arrangement 2 or the first container 1 comprising said connecting arrangement to be implemented independently of the second connecting arrangement 4. The proposed coupling arrangement 17 may then in principle be used in another connection for the cutting opening and/or may be used to make it possible to open the closure 18 by deformation of the coupling arrangement 17. It is clear that the combination of the first connecting arrangement 2 and the second connecting arrangement 4 corresponding thereto as the connecting system 5 is nevertheless particularly preferred.

[0333] The cutting edge 21 is arranged at an open end 26 of the tubular coupling arrangement 17 like depicted in FIG. 1. This is suitable for opening the second connecting arrangement by means of a translational relative movement of the connecting arrangements 2, 4 along a coupling axis 22, regardless of whether a second connecting arrangement 4 is also provided.

[0334] Preferably, the tubular coupling arrangement 17 comprises a tube axis 27, which preferably corresponds to the coupling axis 22. The tube axis 27 is preferably an axis of symmetry of the at least substantially tubular coupling arrangement 17. The coupling arrangement 17 may therefore be rotationally symmetrical about the tube axis 27 or the coupling axis 22. Regardless, the coupling arrangement 17 is preferably non-circular in cross section perpendicularly to the coupling axis 22 or tube axis 27. In the example shown, the coupling arrangement 17 is oval with axial symmetry to the coupling axis 22 or tube axis 27.

[0335] As can be clearly seen in particular in FIG. 3, the coupling arrangement 17 preferably has at least one weakened region 28 which enables or facilitates deformation of the coupling arrangement 17 radially relative to the coupling axis 22.

[0336] As already explained, the first connecting arrangement 2 is preferably opened by the coupling arrangement 17 being deformed and by the closure 18, which is surrounded by the coupling arrangement 17, being opened. In this connection, it has been found that the torque required for rotating the connecting arrangements 2, 4 can be reduced and thus the ease of opening can be improved if deformability of the coupling arrangement 17 required for opening the first connecting arrangement 2 is made easier. In the present case, this is made possible in particular by the weakened region(s) 28.

[0337] In order to fulfil its function, the coupling arrangement 17 preferably has sufficient stability, in particular in the coupling direction 17 along the coupling axis 22. By means of the weakened region(s) 28, easy deformability is nevertheless advantageously achieved radially relative to the coupling axis 22, and therefore easy opening is made possible.

[0338] Particularly preferably, the weakened region(s) 28 is/are formed by one or more notches. The notches in the form of weakened regions 28 have proven to be particularly suitable.

[0339] Preferably, the one or more notches extend at least substantially in parallel with the coupling axis 22. This advantageously allows for weakening of the coupling arrangement 17 primarily in the radial direction, while sufficient stability remains in the coupling direction.

[0340] The weakened region(s) 28 and in particular the notch or notches are preferably formed by a reduction in wall thickness in the radial direction with respect to the coupling axis 22. As can be clearly seen in the example shown, the notches are preferably formed on a radially outer side. Alternatively or additionally, however, notches may also be formed on an inner side.

[0341] The weakened region(s) 28 is/are preferably provided on a side of the interior 6 of the associated container 1 facing away from the closure 18, in particular the closure plate.

[0342] The weakened region(s) 28, in particular the notches, preferably extend(s) as far as the cutting edge 21 such that the cutting edge 21 is interrupted by the notches.

[0343] The weakened regions 28 thus preferably extend along a first portion 29 of the coupling arrangement 17 from the height of the closure 18 towards an open edge or the cutting edge 21 of the coupling arrangement 17.

[0344] In particular, the weakened region(s) 28 extend(s) in an elongate and/or uninterrupted form as far as the cutting edge 21 and interrupt(s) the course of the cutting edge 21 that otherwise corresponds at least substantially to the course of the frangible point 23. In this way, a tooth-like structure of the cutting edge 21 can be formed.

[0345] Preferably, a plurality of notches distributed along a circumferential line or surface of the coupling arrangement 17 are provided in the form of weakened regions 28. In this way, a weakening of the coupling arrangement 17 with regard to radial deformation relative to the coupling axis 22 can be achieved at least substantially along the entire circumferential line or surface of the coupling arrangement 17.

[0346] In order to open the first connecting arrangement 2, deformation of the coupling arrangement 17 along the entire circumferential line or surface is furthermore preferred in order to make it possible to securely open the closure 18. Therefore, the corresponding, at least substantially more uniform or equidistant distribution of the weakened regions 28 is also preferred. In the example shown, preferably more than 6, in particular more than 12 and/or less than 100, preferably less than 50 weakened regions 28 or notches are provided.

[0347] FIG. 8 shows a longitudinal section through the proposed connecting system 5 in another embodiment in the first connecting position. In this figure, the step portion 30 is clearly visible. In addition, reference is made in particular to FIG. 1.

[0348] The tubular coupling arrangement 17 preferably comprises a step portion 30 that extends substantially radially or perpendicularly relative to the tube axis 27 and is arranged between the first portion 29 extending at least substantially in parallel with the tube axis 27 and a second portion 31 extending at least substantially in parallel with the tube axis 27. In this case, the first portion 29 preferably connects one end of the step portion 30 to the cutting edge 21. The second portion 31 in turn preferably connects the step portion 30 to a structure of other parts of the first connecting arrangement 2.

[0349] In other words, the coupling arrangement 17 has a tubular shape, which has a step portion 30 which changes the diameter or the clear width of the coupling arrangement 17 between the first portion 29 and the second portion 31.

[0350] In the example shown, the step portion 30 adapts the shape of the tubular coupling arrangement 17, which is non-circular in cross section, to a circular shape of the surrounding structure. The step portion 30 may be formed in one piece or in several pieces. In the example shown, the step portion is formed on opposite sides of the coupling axis 22 in an axially symmetrical, rotationally symmetrical and/or interrupted manner

[0351] The step portion 30 preferably forms a bellows together with the portions 29, 31 of the coupling arrangement 17 adjacent thereto. A bellows is a structure that is airtight and is flexible by means of one or more folds. In the present case, the airtightness is achieved by an uninterrupted, continuous wall, which is formed by the coupling arrangement 17. Furthermore, the step portion 30 creates kinks relative to the adjacent portions 29, 31. In particular radial deformation of the coupling arrangement 17 is thereby facilitated.

[0352] As already explained above, the coupling arrangement 17 is preferably non-circular in cross section, as a result of which it preferably has at least one first half-axis 32 having a minimum length and at least one second half-axis 33 having a maximum length which preferably intersect the coupling axis 22 and the tube axis 27, respectively, like shown in FIG. 3. In this connection, it is preferred that the step portion 30 has a greater extension in alignment with the first half-axis 32 than in alignment with the second half-axis 33. In this way, simpler radial deformability of the coupling arrangement 17 can be made possible.

[0353] This is because the step portion 30 makes deformability of the coupling arrangement 17 possible by stretching, preferably while changing, in particular decreasing or increasing, an angle φ enclosed by the step portion 30 and the first portion 29 and/or the second portion 31 of the coupling arrangement 17, with less force being required than in structures such as a cone or a continuously tubular course of the coupling arrangement 17 without an offset in the tube wall or a wall 66 of the coupling arrangement 17 due to such a step portion 30.

[0354] Using other words, the step portion 30 facilitates (better) deformability of the coupling arrangement 17. This can be achieved by the step portion 30 to be stretchable. Stretching preferably means that an angle φ enclosed by the step portion 30 and the first portion 29 and/or the second portion 31 of the coupling arrangement 17 is or are increased. Alternative or additionally, stretching means that the step portion 30, the first portion 29 and/or the second portion 31 is or are bended. This can cause to lengthen the structure comprised by or consisting of the step portion 30, the first portion 29 and/or the second portion 31. Fortunately, this enables deformation of the coupling arrangement 17 to become easier, i.e., less force is required compared to other construction structures such as a cone or a continuously tubular course of the coupling arrangement 17, such other construction structures not having the advantageous offset in the tube wall or a wall 66 of the coupling arrangement 17 due to such a step portion 30 facilitating stretching thereof.

[0355] In particular, the step portion 30 in alignment with the first half-axis 32 forms a bellows having the above-described properties, and this does not necessarily have to be the case in alignment with the second half-axis 33 and is also not the case in the example shown.

[0356] This is because it is preferably provided that the step portion 30 tapers in the direction of the alignment with the second half-axis, and specifically in particular tapers to zero, such that a step portion 30 is not provided in alignment with the second half-axis 33. This makes it possible both to increase the flexibility of radial deformability of the coupling arrangement 17 as well as to adapt the outwardly facing circumferential surface which is non-circular in cross section or the non-circular wall course of the coupling arrangement 17 to a circular cross section, which the coupling arrangement 17 may have in the second portion 31.

[0357] It is thus provided in particular that the radial extension of the step portion 30, proceeding from the extension or alignment with the second half-axis 33, increases, in particular continuously, on either side in the direction of the extension or alignment with the first half-axis 32. In this way, it can be achieved that the step portion 30 adapts the shape of the coupling arrangement 17, which is non-circular in cross section, to a circular shape.

[0358] As a result, the step portion 30 connects the second (tube) portion 31 of the coupling arrangement 17 having a circular cross section to the first (tube) portion 29 of the coupling arrangement 17, which is non-circular in cross section.

[0359] The step portion 30 lies at least substantially in a plane which is perpendicular to the coupling axis 22 or tube axis 27.

[0360] The first portion 29 of the coupling arrangement 17 is preferably formed by an oval tube, while the second portion 31 of the coupling arrangement 17 is preferably formed by a circular tube, such that the step portion 30 extends preferably at least substantially radially between the oval tube outer surface of the first portion 29 of the coupling arrangement 17 and the circular tube portion of the second portion 31 of the coupling arrangement 17.

[0361] The first connecting arrangement 2 preferably comprises a tubular sealing arrangement 34 and the second connecting arrangement 4 comprises a receptacle 35 that is complementary to the tubular sealing arrangement 34 such that the tubular sealing arrangement 34 can be inserted into the receptacle 35 by means of a translational relative movement of the connecting arrangements 2, 4 along the coupling axis 22. This can be seen in particular in FIGS. 1, 2 and 5 to 7.

[0362] The receptacle 35 and the sealing arrangement 34 are preferably circular in cross section perpendicularly to the coupling axis 22 and comprise mutually corresponding surfaces, preferably an in particular inwardly facing circumferential sealing surface 36 and/or an in particular outwardly facing circumferential sealing surface 38, which abut one another when the connecting arrangements 2, 4 are inserted into one another.

[0363] Accordingly, the inwardly facing circumferential sealing surface 36 is a surface facing inwardly while the outwardly facing circumferential sealing surface 38 is a surface facing outwardly, and, preferably, when assembled the outwardly facing circumferential sealing surface 38 is enclosed by the inwardly facing circumferential sealing surface 36.

[0364] As a result, the fluidic connection F or passage P to be formed can be sealed with respect to the environment.

[0365] With reference to FIGS. 1 and 2, the sealing arrangement 34 is tubular. The sealing arrangement 34 is preferably formed or aligned around the coupling arrangement 17 and/or at least substantially coaxially therewith. In particular, the sealing arrangement 34 and the second portion 31 of the coupling arrangement 17 are formed by coaxially extending circular tube portions. In this case, the sealing arrangement 34 preferably surrounds the coupling arrangement 17, i.e. it has a larger diameter. The sealing arrangement 34 is preferably set back relative to the coupling arrangement 17 axially or in the direction of the coupling axis 22 or tube axis 27. In other words, the coupling arrangement 17 protrudes beyond the sealing arrangement 34, in particular by its first portion 29 and/or in the region of the cutting edge 21.

[0366] The receptacle 35 preferably comprises the inwardly facing circumferential sealing surface 36, which may have the shape of a hollow cylindrical jacket. The inwardly facing circumferential sealing surface 36 may in this case be formed by a tubular wall 37 of the second connecting arrangement 4.

[0367] The sealing arrangement 34 preferably comprises or forms an outwardly facing circumferential sealing surface 38. The outwardly facing circumferential sealing surface 38 preferably corresponds to the inwardly facing circumferential sealing surface 36 such that, when coupling, the outwardly facing circumferential sealing surface 38 comes into sealing contact with the inwardly facing circumferential sealing surface 36.

[0368] Preferably, the inwardly facing circumferential sealing surface 36 and the outwardly facing circumferential sealing surface 38 are arranged coaxially with the coupling axis 22 and are circular in cross section, such that the connecting arrangements 2, 4 can rotate about the coupling axis 22 without existing contact between the inwardly facing circumferential sealing surface 36 and the outwardly facing circumferential sealing surface 38 being interrupted.

[0369] The second connecting arrangement 4 preferably comprises one or more pressing elements 39 that are preferably radially offset inwards with respect to the coupling axis 22 relative to the inwardly facing circumferential sealing surface 36 of the receptacle 35 in order to press the outwardly facing circumferential sealing surface 38 of the tubular sealing arrangement 34 against the inwardly facing circumferential sealing surface 36 of the receptacle 35.

[0370] In particular, the pressing elements 39 are arranged and designed such that, during coupling of the connecting arrangements 2, 4, in particular while the connecting arrangements 2, 4 are being translationally inserted into one another, the sealing arrangement 34 in the region of an open end or an open edge is or has been inserted between the outwardly facing circumferential sealing surface 38 and the pressing elements 39.

[0371] FIGS. 9 and 10 each show a detail of the connecting system 5 in the region of the sealing arrangement 34, specifically in FIG. 9 in the position of the connecting arrangements 2, 4 relative to one another before rotation, i.e., in FIG. 6, in the second connecting position shown in another sectional plane and, in FIG. 10, in the position of the connecting arrangements 2, 4 relative to one another after rotation, i.e. in the third connecting position shown in FIG. 7A and FIG. 7B in which the fluidic connection F or passage P is produced.

[0372] In the rotational position of the connecting arrangements 2, 4 relative to one another in which the translational movement into one another is possible, it may be provided that the pressing elements 39 have play relative to a side facing away from the outwardly facing circumferential sealing surface 38, as for example shown in FIG. 9. Furthermore, it may be provided that the pressing elements 39 press the outwardly facing circumferential sealing surface 38 against the inwardly facing circumferential sealing surface 36 for a more secure sealing effect by exerting pressure on the sealing arrangement 34 on a side facing away from the outwardly facing circumferential sealing surface 38, at least after rotation of the connecting arrangements 2, 4 relative to one another for opening the first connecting arrangement 2 and/or the coupling arrangement 17, as for example shown in FIG. 10.

[0373] The tubular sealing arrangement 34 preferably has different wall thicknesses at an open edge along a circumferential line/surface. As a result, it can be achieved that, when the connecting arrangements 2, 4 are inserted into one another, there is play between the pressing elements 39 and the receptacle 35, which, however, disappears when the connecting arrangements 2, 4 are rotated relative to one another about the coupling axis 22.

[0374] The coupling arrangement 17 preferably has, as already explained, a tube axis 27, which preferably corresponds to the coupling axis 22. The coupling arrangement 17 is more preferably closed in an original state and being openable to form the passage P by deforming the coupling arrangement 17 transversely to its tube axis 27. For this purpose, the coupling arrangement 17 is preferably non-circular in cross section. Accordingly, in its cross section, it preferably has the at least one first half-axis 32 having a minimum length and the at least one second half-axis 33 having a maximum length (cf. for example FIG. 3). In this case, with respect to the wall thickness of the sealing arrangement 34, it is preferred that the tubular sealing arrangement 34 has a lower/smaller wall thickness in alignment or extension with the first half-axis 32 than in alignment with the second half-axis 33.

[0375] The pressing element(s) 39 is/are preferably one or more pins extending at least substantially in parallel with the coupling axis. The pin or pins may have a radially outwardly directed contact surface 40. By means of this contact surface 40, pressure can be exerted on a radially inner surface or on the side of the coupling arrangement 17 facing away from the outwardly facing circumferential sealing surface 38 which presses the outwardly facing circumferential sealing surface 38 against the inwardly facing circumferential sealing surface 36.

[0376] The contact surface 40 may be spaced apart from a foot point 41 of the pin or the respective pins. The contact surface 40 preferably protrudes radially outwards, such that an undercut 42 results between the contact surface 40 and the foot point 41 of the pin in the direction of the coupling axis 22 or tube axis 27.

[0377] The first connecting arrangement 2 preferably comprises a bead 43 along the outwardly facing circumferential sealing surface 38 of the tubular sealing arrangement 34, which bead has an oversize relative to the inwardly facing circumferential surface 36 of the receptacle 35. Preferably, the bead 43 forms the outwardly facing circumferential sealing surface 38 in the form of an uninterrupted sealing surface on a radially outwardly facing circumferential line of the sealing arrangement 34.

[0378] The bead 43 preferably has an oversize relative to a clear width 44 between the outwardly facing circumferential sealing surface 38 and the one or more pressing elements 39. In this way, a sealing effect can be ensured, even if deformation of the coupling arrangement 17 should result in stresses in the material of the sealing arrangement 34.

[0379] The pressing element(s) 39 exert a radial pressure on the sealing arrangement 34 in the coupled state of the connecting arrangements 2, 4, by means of which the sealing arrangement 34 is brought with the outwardly facing circumferential sealing surface 38 into tight contact with the inwardly facing circumferential sealing surface 36 of the receptacle 35.

[0380] In this case, the bead 43 is preferably formed at an open end of the tubular sealing arrangement 34.

[0381] FIG. 3 shows the first connecting arrangement 2 and FIG. 4 shows the second connecting arrangement 4, while FIG. 11 is a perspective view of a third connecting arrangement 45, FIG. 12 is a perspective view of a closure cap 55 of the third connecting arrangement, FIG. 13 is a perspective view of a fourth connecting arrangement 46 and FIG. 14 is a perspective view of a closure cap 56 of the fourth connecting arrangement 46. The closure caps 55, 56 will be discussed in greater detail later. It should be noted at this point, however, that the closure caps 55, 56 shown by way of example for the third and fourth connecting arrangements 45, 46 may also be accordingly provided for the first and second connecting arrangements 2, 4.

[0382] A proposed connecting system 5 may comprise, for producing the fluidic connection F, a first connecting arrangement 2 and a second connecting arrangement 4, which can be coupled to one another and are designed to bring about an opening by coupling, as a result of which a passage P is produced, in particular as described above, and the connecting system 5 may additionally comprise, for producing a fluidic connection F, the third connecting arrangement 45 shown by way of example in FIG. 11 and the fourth connecting arrangement 46 shown by way of example in FIG. 13, which are coupled to one another and designed to bring about an opening by coupling, as a result of which a passage P is produced.

[0383] In other aspects of the present invention, the third connecting arrangement 45 preferably corresponds to the first connecting arrangement 2, or vice versa. In other aspects of the present invention, the fourth connecting arrangement 46 preferably corresponds to the second connecting arrangement 4, or vice versa.

[0384] The first and second connecting arrangement 2, 4 as well as the third and fourth connecting arrangement 45, 46 preferably have a similar construction in relation to the coupling arrangement 17 and the mouth 19 and/or in relation to the sealing arrangement 34 and the receptacle 35.

[0385] Accordingly, the first connecting arrangement 2 and the third connecting arrangement 45 are constructed substantially identically and the second connecting arrangement 4 and the fourth connecting arrangement 46 are constructed substantially identically, such that, in principle, it is possible to couple the first connecting arrangement to the fourth connecting arrangement and/or to couple the second connecting arrangement to the third connecting arrangement.

[0386] In order to prevent coupling of connecting arrangements 2, 4, 45, 46 associated with differently sized containers 1, 3 that accordingly regularly have different volumes, such that intended mixing ratios of container contents can be ensured, the connecting arrangements 2, 4, 45 and 46 preferably additionally each comprise a mechanism in the form of a bayonet catch 47, 48, 49, 50, which makes it possible to couple the first connecting arrangement 2 to the second connecting arrangement 4 and to couple the third connecting arrangement 45 to the fourth connecting arrangement 46, while it prevents the first connecting arrangement 2 from being coupled to the fourth connecting arrangement 45 and/or prevents the second connecting arrangement 4 from being coupled to the third connecting arrangement 46.

[0387] Particularly preferably, the mechanism is formed by different bayonet catches 47, 48, 49, 50. In the example shown according to FIG. 4, it can be clearly seen that the bayonet catch 48 is formed in the manner of a lock. The bayonet catch 47 of the first connecting arrangement 2 corresponds to this such that the connecting arrangements 2, 4 can be inserted into one another by translational movement of said arrangements towards one another along the coupling axis 22. In this point, the bayonet catch 50 of the fourth connecting arrangement 46 of, for example, FIG. 13 is formed differently than, for example, that depicted in FIG. 8, such that coupling is prevented. The same also applies to the bayonet catch 49 of the third connecting arrangement 45 from FIG. 11, which is formed to be incompatible with the bayonet catch 48 of the second connecting arrangement 4, for example as depicted in FIG. 4.

[0388] The bayonet catches 47, 48, 49, 50 comprise projection-like bayonet elements 51, 52, 53, 54 which particularly preferably project radially outwards for this purpose and are complementary to one another in the first connecting arrangement 2 and the second connecting arrangement 4, such that the first connecting arrangement 2 can be coupled to the second connecting arrangement 4 by sliding into one another, the bayonet elements 51, 52 passing one another in a translational movement of the first connecting arrangement 2 relative to the second connecting arrangement 4 and the first connecting arrangement 2 and the second connecting arrangement 4 being rotatable relative to one another after the bayonet elements 51, 52 have passed one another, as a result of which they bring about locking by undercutting.

[0389] The bayonet elements 51, 54 of the first connecting arrangement 2 and the third connecting arrangement 46 are incompatible with one another and/or the bayonet elements 52, 53 of the second connecting arrangement 4 and the fourth connecting arrangement 46 are incompatible with one another, the mutually incompatible bayonet elements 52, 53 and 51, 54, respectively, preventing the bayonet elements 52, 53 and 51, 54, respectively, from passing one another and/or from forming a lock.

[0390] The bayonet catches 47, 48, 49, 50 thus preferably have a double function, namely, on one hand, using a key-lock mechanism to ensure that only compatible containers 1, 3 can be coupled to one another via the connecting arrangements 2, 4, 45, 46 and, on the other hand, to ensure that the connecting arrangements 2, 4 and 45, 46, respectively, are held in one another in a form-fitting manner by means of the bayonet catches 47, 48, 49, 50.

[0391] A corresponding container system 8 preferably has at least four containers 1, 3, which are each equipped with one of the connecting arrangements 2, 4, 45, 46. In principle, it is possible and preferred for further connecting arrangements 2, 4, 45, 46 corresponding to one another in pairs to be provided, such that six or eight or more different containers 1, 3 can each be coupled to one another exclusively in pairs via the respective connecting arrangements 2, 4, 45, 46.

[0392] Alternatively or additionally, different containers 1, 3 may also be incompatible with one another due to further or other differences.

[0393] The coupling arrangement 17 preferably comprises the closure 18 in the form of a closure plate that is integrally formed with the coupling arrangement 17 and is connected to the coupling arrangement 17 by a frangible point or line of weakness, the frangible point or line of weakness being suitable for rupturing by deformation of the coupling arrangement 17 in order to form the passage P.

[0394] In principle, it is preferable for the closure plate to be inclined, specifically preferably both with respect to the coupling axis 22 and with respect to a plane perpendicular thereto, as for example shown in FIG. 1. It has been found to be advantageous for the closure plate to be inclined, since, in this case, it tilts due to the deformation of the coupling arrangement 17 when rupturing a surrounding frangible point 23 and provides a sufficiently large opening.

[0395] Surprisingly, however, it has been found that a different procedure is more advantageous, in particular for smaller container sizes or smaller connecting arrangements such as the third connecting arrangement 45, as for example shown in FIG. 11. Here, it is preferable for the closure plate 18′ to extend at least substantially perpendicularly to the tube axis 27 and to comprise asymmetrically arranged reinforcing structures 57, in particular asymmetrically arranged stiffening ribs. Otherwise, the closure 18′ preferably has the same or corresponding properties as the closure 18 of the first connecting arrangement 2.

[0396] Alternatively, or additionally, both the inclination of a closure plate and the asymmetrically arranged stiffening or weakening structures of such closure plate can be realized in combination, i.e., the same closure plate might combine them. Then, such closure plate does not extend at least substantially perpendicularly to the tube axis 27 as it is inclined. With other words, stiffening or weakening structures like stiffening ribs 72 might be arranged asymmetrically like those of the third connecting arrangement 45, as for example shown in FIG. 11.

[0397] The closure 18′ formed as the closure plate preferably comprises reinforcing structures 57 which are asymmetrically distributed in a main direction of extension of the closure plate. In the example shown according to FIG. 11, reinforcing structures 57 are sometimes displaced with respect to a center point or center of gravity of the closure plate and sometimes are also only provided on one side with respect to a center point or center of gravity. The asymmetrical stability of the closure plate which results therefrom allows for secure opening under deformation of the coupling arrangement 17, in particular for smaller connecting arrangements 2, 4 or containers.

[0398] The closure 18′ formed as the closure plate of the third connecting arrangement 45 preferably comprises one or more gussets 58 at the edge. The gussets 58 are preferably arranged on radially opposite sides of the closure plate. They are preferably provided on or in the extension of the shorter half-axis 32 of a basically oval shape of the closure plate. In the region of the gusset 58, the oval basic shape of the closure plate is accordingly pierced and guided to the outside in the form of the gussets 58.

[0399] In this connection, it is preferable for the reinforcing structures 57 to be arranged at least substantially mirror-symmetrically relative to an imaginary plane through an imaginary connecting line of the gussets 58 and a perpendicular line relative to the main plane of extension of the closure plate.

[0400] The reinforcing structures 57 are preferably rib-like or formed by ribs. The reinforcing structures 57 are preferably primarily arranged on a side facing one of the gussets 58.

[0401] As already explained at the outset, the containers 1, 3 comprise a container blank 9, 10 and the first connecting arrangement 2 or second connecting arrangement 4, which can be inserted into one another by means of an insertion movement.

[0402] For this purpose, the relevant container blank 9, 10 and the relevant connecting arrangement 2, 4 preferably have form-fitting elements 59 that are formed to be complementary to one another and prevent the connecting arrangement 2, 4 and the container blank 9, 10 from rotating relative to one another by means of a form fit when said connecting arrangement is inserted into said container blank.

[0403] The form-fitting elements 59 are preferably formed by recesses and corresponding protrusions, as for example shown by way of example in FIG. 3 and FIG. 4, and form-fitting elements 59 that are complementary thereto are provided on the container blanks 9, 10.

[0404] The form-fitting elements 59 bring about locking by means of an insertion movement of the container blank 9, 10 and a connecting arrangement 2, 4 into one another. In particular, the form-fitting elements 59 bring about teeth and/or a lock and/or a locking mechanism.

[0405] The form-fitting elements 59 are preferably arranged on an inner, circumferential side wall of the container blank 9, 10 and on an outer, circumferential side wall of the connecting arrangement 2, 4.

[0406] In one method, the present invention relates to the production of a container 1, 3 from a container blank 9, 10 and a connecting arrangement 2, 4. The container blank 9, 10 and the connecting arrangement 2, 4 have the form-fitting elements 59 that are formed to be complementary to one another and prevent the connecting arrangement 2, 4 and the container blank 9, 10 from rotating relative to one another by means of a form fit when said connecting arrangement is inserted into said container blank.

[0407] If the container blank 9, 10 and the connecting arrangement 2, 4 are inserted into one another by means of an insertion movement, by means of the form-fitting elements 59, a position of the container blank 9, 10 relative to the connecting arrangement 2, 4 is predetermined and/or a form fit is formed which prevents the container blank 9, 10 and the connecting arrangement 2, 4 from rotating relative to one another.

[0408] Alternatively or additionally, it is possible for the container blank 9, 10 and the connecting arrangement 2, 4 to be inserted into one another by means of an insertion movement, the container blank 9, 10 preferably comprising rib-like stiffening structures 60, in particular one or more ribs.

[0409] The stiffening structures 60 in turn preferably comprise open ends 61 and the connecting arrangement 2, 4 comprises coupling structures 62 that are formed to be complementary thereto, engage in one another when the connecting arrangement 2, 4 is inserted into the container blank 9, 10, and prevent any rotation relative to one another by means of a form fit. This is shown by way of example in FIGS. 1 and 2.

[0410] The coupling structures 62 are preferably formed by recesses corresponding to the open ends 61 of the stiffening structures 60. The coupling structures 62 together with the stiffening structures 60 preferably bring about locking by means of an insertion movement of the container blank 9, 10 and a connecting arrangement 2, 4 into one another.

[0411] In particular, the coupling structures 62 together with the stiffening structures 60 form teeth, an at least partially toothing and/or a lock and/or a locking mechanism.

[0412] In particular, the open ends 61 of the stiffening structures 60 engage into the coupling structures 62 at least essentially axially, like depicted for example in FIG. 1. This axial engagement between the open ends 61 of the stiffening structures 60 and the coupling structures 62 may also provide a means for positively positioning the connecting arrangement 2,4 into the container blank 9,10 along the tube axis 27.

[0413] Alternatively, or additionally, the open ends 61 of the stiffening structures 60 engage into the coupling structures 62 at least essentially radially, as depicted for example in FIG. 2.

[0414] Alternatively, or additionally, the open ends 61 of the stiffening structures 60 preferably radially engage behind the coupling structures 62 for positively locking the outer wall 63. In this case, the open ends 61 can engage the coupling structures 62 preventing the (second) connecting arrangement 4 from rotation relative to its container blank 10 or not. Anyway, it is preferred that rotation is prevented by means of form-fitting element 59 of the (second) connecting arrangement 4.

[0415] In a proposed method, the present invention relates to the production of a container 1, 3 from a container blank 9, 10 and a connecting arrangement 2, 3, it being possible for the container blank 9, 10 and the (relevant) connecting arrangement to be inserted into one another by means of an insertion movement, and the container blank 9, 10 preferably comprising rib-like stiffening structures 60, the stiffening structures 60 comprising open ends and the connecting arrangement 2, 4 comprising coupling structures 62 that are formed to be complementary or partially complementary thereto, and the container blank 9, 10 and the connecting arrangement 2, 4 being inserted into one another by means of an insertion movement, as a result of which the open ends and the coupling structures 62 engage in one another, such that the container blank 9, 10 and the connecting arrangement 2, 4 are prevented from rotating relative to one another and/or a position of the container blank 9, 10 relative to the connecting arrangement 2, 4 is predetermined during the insertion.

[0416] In FIGS. 2 and 5 to 7, the first and/or second connecting arrangement 2, 4 comprises an offset 77 between the closure 20 and the coupling arrangement 17 and a circumferential outer wall 63, the offset 77 being stiffened by one or more ribs 67.

[0417] The ribs are preferably arranged on a side facing the interior of the container 1 in the assembled state. The ribs preferably extend at least substantially radially relative to the tube axis 27 or coupling axis 22 and/or at least substantially along the entire offset 77. Alternatively or additionally, the first connecting arrangement 2 has an offset, which can also be stiffened by ribs (not shown).

[0418] The container blank 9, 10 preferably comprises a bottle neck 15, 16 that opens into a removal opening 11, 12 and a circumferential outer wall of the container blank 9, 10 which connects the bottle neck 15, 16 to an open tubular end 64 provided on the side facing away from the bottle neck 15, 16, for inserting the connecting arrangement 2, 4.

[0419] Preferably, the container blank 9, 10 comprises one or more stiffening structures 60 in the form of ribs for stiffening its outer wall which extend at least substantially from the bottle neck 15, 16 in the direction of the open end 61.

[0420] The one or more ribs may form a stop for the connecting arrangement such that they determine how far the connecting arrangement 2, 4 can be inserted into the container blank 9, 10.

[0421] The one or more ribs are preferably arranged on a side of the outer wall of the container blank 9, 10 facing the interior of the container blank 9, 10. The one or more ribs may openly project into the interior of the container blank 9, 10. The one or more ribs may comprise, on an end 61 facing away from the bottle neck 15, 16, an end portion 65 spaced apart from the outer wall of the container blank 9, 10 for engaging in a coupling structure 62 formed by a recess in the connecting arrangement 2, 4.

[0422] The tubular coupling arrangement 17 preferably comprises a circumferential wall 66, in particular formed by the first portion 29, the second portion 31 and/or the step portion 30.

[0423] The circumferential wall 66 of the tubular coupling arrangement 17 preferably comprises one or more ribs 67 and/or folded structures 68 for stiffening the tubular coupling arrangement 17 in the direction of the tube axis 27 or coupling axis 22.

[0424] FIG. 15 is a cross section through the first connecting arrangement 2 perpendicularly to the coupling axis 22 in the direction of the container 1 behind the closure 18, in which the ribs 67 and/or folded structures 68 can be seen.

[0425] The ribs 67 and/or folded structures 68 are preferably elongated, with a main extension extending in the direction of the tube axis 27 or coupling axis 22. The ribs 67 and/or folded structures 68 are preferably formed integrally with the wall 66.

[0426] The preferably circumferential wall 66 of the tubular coupling arrangement 17 preferably has a radius 69 that increases starting from an open end or the cutting edge 21. The increasing radius 69 is preferably formed by an inclined step and/or a conical jacket portion. In this regard, reference is additionally made to FIGS. 8 and 11.

[0427] The step and/or the conical jacket portion may be inclined relative to the tube axis 27 or coupling axis 22 at an angle 70. The step and/or the conical jacket portion preferably encloses an angle 70 of preferably more than 15 degrees and/or less than 75 degrees together with the tube axis 27. The angle 70 is preferably obtuse relative to adjacent portions of the tubular coupling arrangement 17 or the first portion 29 thereof which has the cutting edge 21.

[0428] The radius 69, which is smaller in the region of the cutting edge 21 and increases therefrom, preferably forms an insertion aid.

[0429] It is further preferable for the step and/or the conical jacket portion to be formed on an end face of a portion provided between two weakened regions 28 of the coupling arrangement 17. This is shown by way of example in FIGS. 3 and 11.

[0430] An improved closure plate which forms the closure 18 of the coupling arrangement 17 is shown in FIGS. 1 and 5 to 7 as well as in FIG. 16, which shows another longitudinal section through the proposed connecting system 5 in the first connecting position.

[0431] With reference to FIG. 16, the closure plate comprises a structure 71 that extends transversely to a main plane of extension and is designed to form a stop on a side of the closure plate facing the structure during opening, by means of which stop the closure plate can be supported on the coupling arrangement 17 in order to also cause an opening on a side facing away from the stop.

[0432] The structure 71 or the stop is preferably a stiffening structure or forms a part thereof, in particular a stiffening rib 72. The structure 71 is therefore preferably formed by one or more ribs. For this purpose, one of the ribs may have a protrusion, which forms the stop.

[0433] With reference to FIG. 8, the closure 20 of the second connecting arrangement 4 is preferably formed by a closure plate. This is particularly preferably delimited by a frangible point 23 in the form of a fragile line of weakness and additionally comprises an in particular structurally weakened region.

[0434] The closure 20 preferably has a centrally arranged stiffening 74 that is surrounded by the weakened region 73. The closure 20 preferably comprises a frame 75 that connects the line of weakness to the weakened region 73.

[0435] With reference to FIGS. 12 and 14, the (relevant) connecting arrangement 2, 4 preferably comprises a closure cap 55, 56. In the example shown, the closure cap 55, 56 is in each case designed to cover or close the closure 18, 20 of the connecting arrangement 2, 4, 45, 46, in particular in an airtight and/or bacteria-tight manner

[0436] This aspect will be explained in greater detail in the following with reference to the third and fourth connecting arrangement 45, 46, but preferably applies accordingly to the first and second connecting arrangement 2, 4. Closure caps corresponding to the first and/or second connecting arrangement 2, 4 may correspond, with the same or similar function, to the first and/or second connecting arrangement 2, 4 when adapted accordingly.

[0437] As already explained above, in other aspects of the present invention as well as in the present aspect, the third connecting arrangement 45 preferably corresponds to the first connecting arrangement 2, or vice versa. In other aspects of the present invention, the fourth connecting arrangement 46 preferably corresponds to the second connecting arrangement 4, or vice versa.

[0438] The relevant closure cap 55, 56 and the relevant connecting arrangement 45, 46 comprise mutually corresponding guide surfaces 76. The guide surfaces 76 have an incline relative to one another by means of which, when the closure cap 55, 56 rotates relative to the connecting arrangement 2, 4, a force that separates the closure cap 55, 56 from the connecting arrangement 2, 4 is generated.

[0439] In an embodiment, in particular for the closure cap 56 of the second or fourth connecting arrangement 4, 46, the guide surfaces 76 are formed by a cam and a slide, the cam having an incline and the cam being guided in the slide.

[0440] Alternatively or additionally, in particular for the first or third connecting arrangement 2, 45, it is provided that the closure cap 55 comprises a wall which has an incline at an open edge, and that the connecting arrangement 2, 45 comprises a sliding surface which corresponds to the edge and against which the edge is supported when the closure cap rotates relative to the connecting arrangement with its incline, or vice versa.

[0441] The described aspects can be implemented separately and combined with one another, with it being possible to achieve different synergistic effects by means of different combinations.

[0442] For example, the first connecting arrangement 2 or the coupling arrangement 17 is particularly advantageous if it both comprises one or more weakened regions 28 and additionally comprises the folded structure 68, preferably on a side facing away from the cutting edge 21. In this case, the weakened region(s) 28 can thus be arranged in the first portion 29 of the coupling arrangement 17, while the folded structure 68 is implemented in the second portion 31 of the coupling arrangement 17. In combination, stability of the coupling arrangement 17 is maintained in the direction of the coupling axis 22, while radial deformability is further improved overall. In addition, the first portion 29 for stabilizing the cutting edge 21 may have a greater wall thickness than the second portion 31 comprising the folded structure 68. Therefore, overall, material savings, a stable cutting edge 21 and the improved radial deformability are achieved in combination.

[0443] Alternatively or additionally, in a further advantageous combination, the folded structure 68 and/or the weakened region(s) 28 are further combined with the step portion 30, in any case in portions along the circumferential line/surface of the coupling arrangement 17. In this case, the step portion 30 may be provided between the first portion 29 and the second portion 31 of the coupling arrangement 17 or between the region comprising the weakened region(s) 28 and the region comprising the folded structure 68. This combination has proven to be particularly advantageous in order to achieve particularly simple radial formability with sufficient axial stability as a result, such that, during the coupling of the first connecting arrangement 2 to the second connecting arrangement 4, the cutting edge 21 can cut open the frangible point 23 of the closure 18 to form the mouth 19, while the subsequent radial deformation of the coupling arrangement 17 can be achieved particularly easily, i.e. with relatively low torques.

[0444] Most preferably, the step portion 30 (in the direction of the coupling axis 22) is smaller behind a projecting tip of the cutting edge 21 than in other regions, or is not present. In this way, the stability of the coupling arrangement 17 can be improved in the region in which the cutting edge 21 first and/or primarily acts on the frangible point 23.

[0445] Another, particularly advantageous combination of aspects relates to the bayonet elements 51-54, which may comprise one or more guide surfaces 76 in order to cause the closure caps 55, 56 to be levered off when one of said closure caps is rotated. The bayonet elements 51-54 have a certain radial extension for the function of the bayonet catches 47-50. This radial expansion produces an end face that faces outwards or faces away from the interior 6, 7, which may be advantageously used without additional use of material to form the guide surface 76. Side surfaces of the bayonet elements 51-54 and the surface facing inwards or facing the interior 6, 7 are primarily functional for the relevant bayonet catch 47-50, such that, in a synergistic manner, the end face that faces outwards or faces away from the interior 6, 7 can advantageously produce the guide surface 76.

[0446] FIGS. 17 to 20 show an alternative embodiment of the connecting arrangement 46 according to FIG. 13 and the corresponding closure cap 56 according to FIG. 14. Thus, it is referred to the discussion of those Figures and the discussions both Figures refer to. In the following, the focus is merely on the aspects which differ from the fourth connecting arrangement 46 and its closure cap 56 according to FIGS. 13 and 14. The same reference numbers are used for similar parts.

[0447] The connecting arrangement 46 according to FIG. 17 has a higher diameter compared to the connecting arrangement 46 according to FIG. 13. The closure cap 56 according to FIG. 18 has a corresponding diameter being higher than that of closure cap 56 depicted in FIG. 14 accordingly. This is achieved by constructional elements adapting functional parts to the higher diameter and/or scaling. However, the in the following discussed features can be applied to different diameters and, in particular, to the embodiment according to FIGS. 13 and 14 as well.

[0448] The connecting arrangement 46 according to FIG. 17 comprises a first blocking element 78. This blocking element 78 can be configured to form a reversible/non-permanent lock, preferably snap-lock, with a second blocking element 79 of the closure cap 56 depicted in FIG. 18.

[0449] The lock provided by the combination of preferably engaging blocking elements 78, 79 preferably is reversible, i.e., can be released upon applying sufficient torque to the closure cap 56 relative to the connecting arrangement 46.

[0450] In the example shown, the first blocking element 78 is or comprises an opening, preferably opening in a radially inward direction, while the second blocking element 79 is or comprises a complementary structure for engaging the first blocking element 78 when the closure cap 56 is mounted on the connecting arrangement 46 (completely/until stop).

[0451] In FIG. 19, the connecting arrangement 46 and its corresponding closure cap 56 are shown in a position where the closure cap 56 is moved away from the connecting arrangement 46 such that based on the depicted partial cut of the closure cap 56 both blocking elements 78, 79 are visible, here are in a disengaged position. In FIG. 20, which shows a cross-section of the combination of the connecting arrangement 46 and its closure cap 56 along a cutting plane which is moved slightly radially inwardly based on the cutting plane used for the partial cut depicted in FIG. 19, the closure cap 56 is not anymore moved away from the connecting arrangement 46 but is snap-locked to or held otherwise at the connecting arrangement 46 (up to stop). Accordingly, the blocking elements 78, 79 engage as can be seen in FIG. 20.

[0452] For starting a rotational movement of the closure cap 56 relative to the connecting arrangement 46, a torque needs to the applied to the closure cap 56 relative to the connecting arrangement 46 or vice versa such that deformation of the first and/or second blocking elements 78, 79 causes disengagement of the blocking elements 78, 79. This disengagement enables essentially free rotational movability towards the structure, in particular inclined sections of guide surfaces 76, that enables or supports separation of the closure cap 56 from the connecting arrangement 46 or vice versa. In this regard, reference is made to the discussion in context of FIGS. 13 and 14 as well as discussions those passages referring to.

[0453] It is preferred that one or both blocking elements 78, 79 form part of or are attached or arranged at a structure or structures forming the guide surfaces 78. In particular, in the embodiment shown in FIG. 17, the first blocking element 78 of the connecting arrangement 46 is or comprises a recess formed by walls attached to or formed with an inner surface of the connecting arrangement/extend in a radially inward direction such that the recess is accessible in a radially outwardly direction. The first blocking element 78 and/or the second blocking element 79 can have weak structures that enable deformation in order to facilitate disengagement of the blocking elements 78, 79 upon sufficient torque.

[0454] The second blocking element 79 of the closure cap 56 in the embodiment shown comprises a protrusion like a bead or cam for extending into the first blocking element 78, thus causing engagement of the blocking elements 78, 79. In the embodiment shown in FIGS. 18 to 20, the protrusion extends essentially in a radially outward direction.

[0455] However, the structure of the blocking elements 78, 79 can be exchanged and the same or at least a similar effect can be obtained. Further, different realizations may be applied in order to arrive at the function of the first and second blocking elements 78, 79.

[0456] The connecting arrangement 46 and the closure cap 56 preferably each comprise at least one, in the embodiment shown two blocking elements 78, 79. Those blocking elements in the embodiment shown are arranged on opposite sides relative to the coupling axis 22/tube axis 27. At least or more than two blocking elements 78, 79 on each the connecting arrangement 46 and the closure cap 56 can be provided accordingly on respectively corresponding positions such that corresponding blocking elements 78, 79 preferably engage and disengage simultaneously.

[0457] In a corresponding or complementary manner, other combinations or sub-combinations of the different aspects of the present invention may be advantageous.

LIST OF REFERENCE SIGNS

[0458]

TABLE-US-00001 1 first container 2 first connecting arrangement 3 second container 4 second connecting arrangement 5 connecting system 6 interior of the first container 7 interior of the second container 8 container system 9 container blank 10 container blank 11 removal opening of the first container 12 removal opening of the second container 13 removal opening closure of the first container 14 removal opening closure of the second container 15 bottle neck of the first container 16 bottle neck of the second container 17 coupling arrangement 18 closure 19 mouth 20 closure 21 cutting edge 22 coupling axis 23 frangible point 24 directional arrow 25 directional arrow 26 open end 27 tube axis 28 weakened region 29 portion of the coupling arrangement 30 step portion 31 portion of the coupling arrangement 32 first half-axis 33 second half-axis 34 sealing arrangement 35 receptacle 36 inwardly facing circumferential sealing surface 37 wall 38 outwardly facing circumferential sealing surface 39 pressing element 40 contact surface 41 foot point 42 undercut 43 bead 44 clear width 45 third connecting arrangement 46 fourth connecting arrangement 47 bayonet catch 48 bayonet catch 49 bayonet catch 50 bayonet catch 51 bayonet element 52 bayonet element 53 bayonet element 54 bayonet element 55 closure cap 56 closure cap 57 reinforcing structures 58 gusset 59 form-fitting element 60 stiffening structure 61 end of the stiffening structure 62 coupling structure 63 outer wall 64 tubular end 65 end portion 66 wall 67 rib 68 folded structure 69 radius 70 angle (oval contact) 71 structure 72 stiffening rib 73 weakened region 74 stiffening 75 frame 76 guide surface 77 offset 78 first blocking element 79 second blocking element F fluidic connection P passage φ angle