DOOR, IN PARTICULAR SPIRAL DOOR

Abstract

The present invention relates to a door (10), in particular a spiral door or roller door, having a flexible curtain or having a plurality of profiles articulated with one another. The door comprises: a door leaf (20) movable starting from a closed position in the course of an opening movement into a multilayered wound position, a guide assembly (30) having a spiral-shaped guide path section (32) for guiding the opening movement in the region of the lateral edge (22) of the door leaf (20), and a flexible traction element (40) attached to a section (24) of the door leaf that leads in the course of the opening movement for pulling the door leaf into the multilayered wound position.

Claims

1. A door having a door leaf movable starting from a closed position in the course of an opening movement into a multilayered wound position and a guide assembly having a spiral-shaped guide path section for guiding the opening movement in the region of the lateral edge of the door leaf, characterized by a flexible traction element, which is attached to a section of the door leaf that leads during the opening movement, for pulling the door leaf into the multilayered wound position.

2. The door according to claim 1, characterized in that the door leaf is arranged in the form of a winding having layers spaced apart from one another in the multilayered wound position.

3. The door according to claim 1, characterized in that the flexible traction element is a strap, a band, a chain, or a rope.

4. The door according to claim 1, characterized in that the flexible traction element is attached, on the one hand, to the leading section of the door leaf and, on the other hand, to a rotatable winding shaft arrangement, around which the door leaf extends like a spiral in the wound position.

5. The door according to claim 4, characterized in that the winding shaft arrangement comprises a strap disk, which is arranged in a rotationally-fixed manner on a winding shaft, and on which the flexible traction element can be wound in the course of the opening movement.

6. The door according to claim 4, characterized by a door drive for driving the winding shaft arrangement, in particular in the form of a tube drive in the winding shaft of the winding shaft arrangement.

7. The door according to claim 1, characterized in that the flexible traction element is guided in the closed position on an approximately spiral-shaped traction path, the course of which preferably essentially emulates the course of the spiral-shaped guide path section of the guide assembly.

8. The door according to claim 1, characterized in that the flexible traction element is guided on a plurality of preferably rotatably mounted deflection rollers which are arranged in such a way that they provide an approximately spiral-shaped traction path for the flexible traction element.

9. The door according to claim 8, characterized in that the deflection rollers are held in the region of the lateral edge of the door leaf on the side facing away from the door leaf of a guide slot of the guide assembly.

10. The door according to claim 1, characterized by a plurality of guide elements, which protrude on the lateral edge of the door leaf, engage in the guide assembly, and are preferably rotatably attached to the door leaf, and which are guided in the course of the opening movement of the door leaf in the spiral-shaped guide path section preferably formed as a guide slot.

11. The door according to claim 10, characterized in that the flexible traction element is attached to the guide element of the door leaf that leads in the course of the opening movement.

12. The door according to claim 1, characterized in that the door leaf is an at least partially flexible curtain, preferably a plastic curtain, in particular a plastic curtain which comprises polycarbonate.

13. The door according to claim 1, characterized in that the guide assembly comprises a guide plate equipped with the guide slot, which is preferably produced by laser processing.

14. The door according to claim 1, characterized in that the guide assembly comprises a guide rail, which is closed on the side facing away from the guide slot by means of a rail wall, and which comprises in particular a steel, aluminum, and/or plastic rail that is profiled or embodied as an extruded profile.

15. The door according to claim 13, characterized in that the guide rail comprises a running surface, which is arranged between the guide slot and the rear wall and optionally extends around in a spiral, for a guide element of the door leaf and/or a deflection roller for the traction element and/or a guide element of the door leaf.

16. The door according to claim 1, characterized in that the door leaf is an armored element having a plurality of profiles articulated with one another.

17. The door according to claim 1, characterized in that an elastically deformable stabilizing element is arranged on the edge that leads during a closing movement, in the case of which a restoring force counteracting a deformation of the stabilizing element in a direction opposite to the closing direction is less than a restoring force counteracting a deformation of the stabilizing element in a direction extending transversely thereto, in particular approximately perpendicularly to the door leaf in the closed position.

18. A method for opening a door, which comprises: pulling a door leaf from a closed position into a multilayered wound position by means of a flexible traction element, in particular a strap, which is attached to a leading section of the door leaf, while the door leaf is guided in the region of its lateral edge by a guide assembly having a spiral-shaped guide path section.

19. The method according to claim 14, characterized in that the flexible traction element is guided on an approximately spiral-shaped traction path, preferably on a plurality of deflection rollers, and/or is wound on a winding shaft arrangement during the pulling of the door leaf into the multilayered wound position.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The invention is explained hereafter with reference to the drawing, to which reference is expressly made with respect to all details essential to the invention and not expressly emphasized in the description. In the figures of the drawing:

[0053] FIG. 1 shows a schematic view of a portion of a door according to the invention,

[0054] FIG. 2 shows a schematic view of a guide assembly for guiding the door leaf from FIG. 1,

[0055] FIG. 3 shows a schematic view of the portion of the door according to the invention from FIG. 1 with the guide assembly from FIG. 2,

[0056] FIG. 4 shows a schematic view of a door according to the invention,

[0057] FIG. 5 shows a schematic sectional view of a guide assembly according to a further embodiment of the invention,

[0058] FIG. 6 shows a schematic sectional view of a guide assembly according to a third embodiment of the invention,

[0059] FIG. 7 shows a schematic view of the guide assembly according to FIG. 5, and

[0060] FIG. 8 shows a schematic arrangement of the guide assembly according to FIG. 6.

DETAILED DESCRIPTION

[0061] FIG. 4 is a schematic view of a door 10 according to the invention, for example a spiral door or roller door, having a door leaf 20 for closing a door opening. FIG. 4 shows the door leaf 20 in the closed position, in which it closes the door opening and is arranged essentially vertically, wherein the lower door leaf edge rests on the bottom of the door opening to be closed.

[0062] The door leaf 20 can be moved against the direction of gravity into an open position, in which the door leaf 20 is arranged in the form of a multilayered winding in a multilayered wound position. The individual winding layers preferably do not touch one another in the wound position and/or in the course of the opening movement, to avoid damage to the door leaf and to enable exact guiding from the closed position into the open position.

[0063] The door leaf 20 comprises a door leaf section 24 that leads in the course of the opening movement and a door leaf section that trails in the course of the opening movement. Furthermore, the door leaf comprises two lateral edges 22, at each of which the door leaf 20 is guided by means of a guide assembly 30, which can comprise a guide slot or a guide rail. In the closed position shown in FIG. 4, the door leaf is guided in the region of its lateral edges 22 in approximately vertically extending guide path sections of the guide assembly 30, which are solely indicated by dashed lines. The guide assembly 30 comprises a spiral-shaped guide path section 32, in which the lateral edges 22 of the door leaf are guided during the movement into the multilayered wound position. The spiral-shaped guide path section 32 is also indicated as a dashed line in FIG. 4.

[0064] In the multilayered wound position, the door leaf 20 encloses a winding shaft arrangement 50 in the form of a multilayered winding. The winding shaft arrangement 50 can comprise a winding shaft extending essentially horizontally above the door opening and/or behind a lintel of the door opening. The winding shaft arrangement 50 can be driven by means of a door drive which can be designed, for example, as a tube motor.

[0065] FIG. 1 shows a schematic view of an upper portion of a door 10 according to the invention, as is shown by way of example in FIG. 4. In this case, the guide assembly 30 for guiding the door leaf 20 is omitted in consideration of better clarity in FIG. 1. The guide assembly 30 is shown separately in FIG. 2. FIG. 3 shows the upper portion of the door 10 according to the invention from FIG. 1 having the guide assembly 30 from FIG. 2 attached thereon.

[0066] In FIG. 1 and FIG. 3, the door leaf 20 is shown in the course of an opening movement, in which the door leaf 20 is moved upward into the multilayered wound position. For this purpose, a flexible traction element 40, such as a strap for pulling the door leaf 20 into the multilayered wound position, is attached to the leading section 24 of the door leaf 20.

[0067] In the embodiment shown in FIG. 1, the door leaf 20 is formed as a partially flexible curtain 28, which can comprise reinforcements extending perpendicularly to the movement direction of the door leaf, which can be used for wind protection. The strap can be attached to a lateral edge section of the door leaf reinforcement that leads in the course of the opening movement. The lateral edges are embodied as strap hinges which are fastened to the reinforcements, as described in EP 16 002 133.3.

[0068] The flexible traction element 40 is guided by a plurality of deflection rollers 45 along a spiral-shaped traction path 42. The course of the spiral-shaped traction path 42 essentially corresponds to the course of the spiral-shaped guide path section 32 (see FIG. 2), along which the leading section 24 of the door leaf 20 is guided in the course of the opening movement of the door leaf.

[0069] In the embodiment shown in FIG. 1, twenty or more deflection rollers 45 are provided for guiding the flexible traction element 45 along the spiral-shaped traction path 42. In an alternative embodiment, the flexible traction element 45 can also be guided in a sliding manner on a continuous spiral path, for example, on the spiral-shaped guide path section 32 of the guide assembly 30. The guiding of the flexible traction element 40 by means of the deflection rollers 45, which are preferably rotatable with respect to axes of rotation extending coaxially to hinge axes of the strap hinges 22, decreases the wear of the flexible traction element 40 and the traction required for pulling the door leaf into the open position, however.

[0070] The deflection rollers 45 can be arranged in such a way that the rotational axes thereof are located essentially on a spiral path having two, three, or more turns. Preferably, six, eight, or more deflection rollers are associated with each of the turns, so that a path emulating a circular spiral can be provided for the flexible traction element by the deflection rollers 45. A high number of deflection rollers arranged with small spacing has the result that the spiral-shaped traction path 42 is particularly similar to the spiral-shaped guide path section 32, which is preferably formed as a circular spiral, whereby the guide of the door leaf can be improved and the required traction can be reduced.

[0071] As shown in FIG. 1, the flexible traction element 40 can be attached, on the one hand, to the leading section 24 of the door leaf 20 and, on the other hand, to a strap disk 55, which is held in a rotationally-fixed manner on the winding shaft 52 of the winding shaft arrangement 50. The strap disk 55 is adapted to the flexible traction element 40 in such a way that it can be wound without the risk of crossing over or jamming on the strap disk 55 and unwound therefrom. A second strap disk optionally arranged on the opposing end of the winding shaft 52 is also shown in FIG. 1, on which an optional second flexible traction element is wound during the movement of the door leaf into the open position. A symmetrical force introduction into the door leaf is ensured by a second flexible traction element.

[0072] A door drive designed as a tube drive for driving the winding shaft 52 can be arranged in the winding shaft 52. Alternatively, a door drive can also be provided which is arranged in axial extension of the winding shaft 52 and is designed, for example, as a direct mount drive.

[0073] FIG. 2 shows a schematic view of the spiral-shaped guide path section 32 of the guide assembly 30. The spiral-shaped guide path section 32 can be formed as a spiral-shaped guide slot 34 introduced into a guide plate. Guide elements 25 of the door leaf can engage into or through the guide slot 34, so that the door leaf can be guided along the spiral-shaped guide slot 34 into the multilayered wound position. As shown in FIG. 3, the spiral-shaped guide path section 32 is arranged on one side of the door leaf 20 in such a way that the winding shaft arrangement 50 extends through its central opening.

[0074] It can be seen particularly well in FIG. 1 that the guide elements 25 of the door leaf are rotatable pin or roller elements protruding on the lateral edge 22 of the door leaf 20. FIG. 3 shows that these guide elements 25 can engage through the guide slot 34 of the guide assembly 30, so that the front sections thereof are accommodated in an intermediate space between the guide plate of the guide assembly 30 and a side wall. The deflection rollers 45 for the flexible traction element can also be held rotatably in this intermediate space. The deflection rollers 45 are held, for example, in the region of the lateral edge 22 of the door leaf 20 on the side facing away from the door leaf of the spiral-shaped guide slot 34 of the guide assembly 30.

[0075] FIG. 1 furthermore shows that the flexible traction element 40 is attached to the guide element 26 of the door leaf that leads in the course of the opening movement, in a section which engages through the guide slot 34.

[0076] As can be seen from FIG. 3, the door leaf 20 is arranged in the multilayered wound position in the form of a winding having layers spaced apart from one another. The spacing of the layers of the door leaf in the open position essentially corresponds to the spacing of adjacent turns of the spiral-shaped guide groove 34. In this case, the strap hinges 22 are arranged on the side of the guide plate facing toward the curtain, while the traction element is arranged on the side of the guide plate facing away from the curtain.

[0077] As indicated in FIG. 4 at 300, in all embodiments of the invention, an elastically deformable stabilizing element can be provided in the region of the edge of the door leaf that leads during the closing movement, in which the restoring force counteracting a deformation of the stabilizing element in a direction counteracting the closing direction is less than the restoring force counteracting a deformation of the stabilizing element in a direction extending transversely thereto, in particular approximately perpendicularly to the closing element in the closed position. The risk of damage to objects and/or injury to persons during a door leaf closing movement can thus be avoided, while simultaneously a sufficient stabilizing effect is achievable in a direction extending perpendicularly to the door leaf plane.

[0078] The use of corresponding stabilizing elements has proven to be advantageous in particular if at least the lower region of the door leaf in the closed position is embodied in the form of a yielding curtain enabling a deformation. With such door leaves, in which the lower region in the closed position is embodied as a yielding curtain, the coupling provided according to the invention of a flexible traction element on the section of the door leaf that leads during the opening movement can also be used particularly advantageously, because the drive can be coupled to the door leaf without consideration of the stability of the door leaf in the region that leads during the closing movement.

[0079] In the embodiment of the invention shown in FIG. 5, the guide assembly comprises a guide rail embodied as a profiled steel plate or as an aluminum extruded profile or plastic extruded profile, which is embodied as a G-rail. A guide roller 125, which is attached to the door leaf 120, and the roller axis of which penetrates a guide slot 134, can be accommodated in the guide rail or the guide profile. The guide rail 130 is embodied as closed in the plane of section shown in FIG. 5, which extends perpendicularly to the movement path, with the exception of the guide slot 134. The guide rail has a rail wall 132 arranged on the side facing away from the guide slot 134.

[0080] A running surface 140, which extends starting from the guide slot in the direction of the rail wall 132 and is essentially planar or circumferential in a spiral shape, is provided in the guide rail 130. This running surface 140 extends approximately in parallel to the movement direction of the door leaf 120 and is used as a support for the rollers attached to the door leaf 120. During the opening or closing movement, the rollers 125 roll on the running surface 140 of the guide rail 130.

[0081] A deflection roller 145 for a traction element fastened via a holder 126 on the door leaf 120, such as a strap, is illustrated by way of example between the edge of the running surface 140 facing toward the rail wall 132 and the rail wall 132. Instead of the embodiment shown in FIG. 5, the guiding of the traction element can be performed via the running surface 140 while dispensing with a separate deflection roller 145. In both embodiments of the invention, a smooth contact surface for the guide roller and optionally the strap is provided by the running surface 140. This is advantageous for smooth door running.

[0082] The embodiment of the invention shown in FIG. 6 essentially differs from the embodiment explained on the basis of FIG. 5 in that, while dispensing with a running surface 140, a guide roller 245 rotatable around a fixed axis of rotation is accommodated in the guide rail 230. This guide roller is used both for guiding the traction element and also for guiding a sliding element of the door leaf which is used simultaneously as the holder for the traction element. The guide rails shown in FIGS. 5 and 6 can be embodied as profiled steel plates, as noted. However, they can also be produced as extruded profiles.

[0083] In the embodiments of the invention explained by way of example on the basis of FIGS. 5 and 6, various types of arrangements of the guide elements and deflection rollers can be selected. Guide elements and deflection rollers can be arranged offset in relation to one another in a direction extending perpendicularly to the movement direction of the door leaf. The guide rollers can have a double function and can be used simultaneously for guiding the traction element and for guiding the door leaf.

[0084] In FIG. 7a, the course of the guide rails 130 in the embodiment illustrated in FIG. 5 is indicated in partial perspective. FIG. 7b schematically shows the arrangement of the deflection rollers 145, for the traction element embodied as a strap 160, within the guide rails 130.

[0085] FIG. 8a shows the guide rails shown in FIG. 6 in a schematic perspective view. In this case, the guide rollers 245 assume a double function, by functioning as a deflection roller for the traction element embodied as a strap, on the one hand, and being used for guiding the door leaf movement, on the other hand. The guide rollers comprise a receptacle for the guide strap, which is delimited on both sides by a protruding shoulder in each case. As soon the guide strap is accommodated in the receptacle, the guide strap and the shoulder arrangements arranged on both sides thereof form a planar support surface for the guiding of the door leaf movement. FIG. 8b schematically shows a possible arrangement of the guide rollers 245 within the guide rails 230.

[0086] Instead of a door leaf in the form of a sheet-shaped curtain, a door leaf designed in the form of an armored element having a plurality of profiles articulated with one another can be provided.

[0087] The door can furthermore comprise a control unit for controlling the door leaf movement and/or for generating control signals used for stopping the door leaf movement, for example, if an obstacle in the movement path of the door leaf is detected by means of a sensor. The sensor can comprise, for example, a photocell, onto which a light beam of a light source can be oriented.

[0088] The invention is not restricted to the embodiment explained on the basis of the drawing. Rather, the opening mechanism according to the invention is also usable in other types of doors, the door leaves of which are movable into a multilayered wound position. Furthermore, the door leaf can comprise multiple flexible traction elements such as straps for pulling the door leaf into the open position. In the present disclosure, in particular the opening movement for opening the door leaf was described. Vice versa, the door leaf is similarly closable again, of course, wherein the door leaf can move back into the closed position under the effect of gravity when the tension of the flexible traction element diminishes.

LIST OF REFERENCE NUMERALS

[0089] 10 door

[0090] 20 door leaf

[0091] 22 lateral edge of the door leaf

[0092] 24 leading section of the door leaf

[0093] 25 guide elements

[0094] 26 leading guide element

[0095] 28 flexible curtain

[0096] 30 guide assembly

[0097] 32 spiral-shaped guide path section

[0098] 34 guide slot

[0099] 40 flexible traction element, in particular strap

[0100] 42 spiral-shaped traction path

[0101] 45 deflection rollers

[0102] 50 winding shaft arrangement

[0103] 52 winding shaft

[0104] 55 strap disk

[0105] 120 door leaf

[0106] 125 guide roller

[0107] 126 holder

[0108] 130 guide rail

[0109] 132 rail wall

[0110] 134 guide slot

[0111] 140 running surface

[0112] 145 deflection roller

[0113] 230 guide rail

[0114] 232 rail wall

[0115] 234 guide slot

[0116] 245 deflection roller

[0117] 300 stabilizing element