Connection coupling

Abstract

In a connecting coupling (1), it is provided that on at least one rib (8) of a rib structure (7) of a hose nipple (6), at least two rib portions (9, 10) are oriented at an angle relative to one another such that the course directions (17, 18) in the rib portions (9, 10) are oriented at an angle relative to one another.

Claims

1. A connecting coupling (1) for a hose (3), the connection coupling comprising a hose nipple (6) on which a rib structure (7) with at least one rib (8) is formed with a closed loop, continuous, and non-crossing profile, and the rib (8) defines a course that has at least one direction change, and further comprising a further rib (13) defining a course that has at least one direction change, wherein the rib (8) and the further rib (13) do not overlap with each other in a radial plane.

2. The connecting coupling (1) as claimed in claim 1, wherein the at least one rib (8) is formed as an ellipse lying obliquely relative to a circumferential direction of the hose nipple (6), and the at least one ellipse runs around a cylindrical or conical base body (14) of the hose nipple (6).

3. The connecting coupling (1) as claimed in claim 1, wherein the hose nipple includes a base body (14), the at least one rib (8) is formed on the base body (14), and the base body (14) has a non-cylindrical form.

4. The connecting coupling (1) as claimed in claim 1, wherein the rib (8) is formed running around the hose nipple (6) in at least one of a closed or non-crossing loop, or the rib (8) is limited to one circumferential portion.

5. The connecting coupling (1) as claimed in claim 1, wherein the hose nipple (6) has a connecting aid (16), and a maximum outer diameter of the connecting aid is at least equal to a maximum outer diameter of the rib structure (7).

6. The connecting coupling (1) as claimed in claim 1, wherein the hose nipple (6) has a tool separating line which defines a mold removal direction, and at every point along the course, the rib (8) is oriented relative to the mold removal direction such that no undercuts occur by orienting side faces of the rib (8) tangentially to said mold removal direction.

7. The connecting coupling (1) as claimed in claim 1, wherein the at least one rib (8) has a rib profile (20) which is rounded or angular in at least one of a foot region (21) or a head region (22) thereof.

8. The connecting coupling (1) as claimed in claim 1, wherein the hose nipple includes a base body (14), the at least one rib (8) is formed on the base body (14), and the base body (14) has a cylindrical form.

9. A connecting coupling (1) for a hose (3), the connection coupling comprising a hose nipple (6) on which a rib structure (7) with at least one rib (8) and at least one further rib (13) are formed, the rib (8) includes a first rib portion (9) and a second rib portion (10) with a holding portion (12) therebetween that extends in a radial plane with respect to a longitudinal axis (11) of the hose nipple (6), the first rib portion (9) follows a first course direction (17) oblique to the holding portion (12) and the second rib portion (10) follows a second course direction (18) oblique to the holding portion (12), and the first course direction (17) is oriented at an angle to the second course direction (18), wherein the further rib (13) defines a course that has at least one direction change, wherein the rib (8) and the further rib (13) do not overlap with each other in a radial direction.

10. The connecting coupling (1) as claimed in claim 9, wherein the first rib portion (9) adjoins the second rib portion (10).

11. The connecting coupling (1) as claimed in claim 9, wherein the at least one holding portion (12) is at least one of delimited at a first end by the first rib portion (9) or delimited at a second end by the second rib portion (10).

12. The connecting coupling (1) as claimed in claim 9, wherein the further rib (13) runs around the hose nipple (6) and is at least one of at a constant distance from the rib (8) or offset by a rotational angle relative to the rib (8), and the further rib (13) has a first rib portion (9) and a second rib portion (10), the first rib portion (9) of the further rib follows a first course direction (17) and the second rib portion (10) of the further rib follows a second course direction (18), and the first course direction (17) is oriented at an angle to the second course direction (18).

13. The connecting coupling (1) as claimed in claim 9, wherein at least one of the first rib portion (9) or the second rib portion (10) is oriented at an angle to at least one of a longitudinal axis (11) of the hose nipple (6) or a or circumferential direction of the hose nipple (6).

14. The connecting coupling (1) as claimed in claim 9, wherein the at least one rib (8) has at least one of a varying thickness or a varying height (h1, h2).

15. A connecting coupling (1) for a hose (3), the connection coupling comprising a hose nipple (6) on which a rib structure (7) with at least one rib (8) and at least one further rib (13) are formed, the at least one rib (8) is formed as a non-crossing circumferential rib (8), and includes at least one rib portion (9, 10) that runs obliquely relative to a circumferential direction of the hose nipple (6), wherein the at least one further rib (13) defines a course that has at least one direction change, wherein the rib (8) and the further rib (13) do not overlap with each other in a radial direction.

16. A connecting coupling (1) for a hose (3), the connection coupling comprising a hose nipple (6) on which a rib structure (7) with at least one rib (8) and at least one further rib (13) is formed, the at least one rib (8) has at least one holding portion (12) running in a radial plane that is perpendicular to a longitudinal axis (11) of the hose nipple (6), the rib (8) is formed as a circumferential rib running around the hose nipple (6), wherein the at least one rib (8) defines a course that has at least one directional change, wherein the at least one further rib (13) defines a course that has at least one direction change, wherein the at least one rib (8) and the at least one further rib (13) do not overlap with each other in a radial direction.

17. A connecting coupling (1) for a hose (3), the connection coupling comprising a hose nipple (6) on which a rib structure (7) with at least one rib (8) is formed, the rib (8) defines a course that has at least one direction change, the rib (8) is formed as a circumferential rib running around the hose nipple (6), the rib structure (7) includes a further rib (13) running around the hose nipple (6) and defining a course that has at least one direction change, wherein the rib (8) and further rib (13) run at a distance from each other such that a circumferential area between the rib (8) and the further rib (13) is free of any rib, and the rib (8) and the further rib (13) do not overlap with each other in a radial direction.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention is now described in more detail with reference to exemplary embodiments, but is not restricted to these exemplary embodiments. Further exemplary embodiments result from combining the features of individual or multiple claims with each other and/or with individual or multiple features of the exemplary embodiments.

(2) The drawings show:

(3) FIG. 1 a connecting coupling according to the invention with an applied and crimped hose end,

(4) FIG. 2 the connecting coupling from FIG. 1 in an axial section,

(5) FIG. 3 the connecting coupling from FIG. 2 in a side view,

(6) FIG. 4 the connecting coupling from FIG. 2 in a side view which is rotated by 90° about the longitudinal axis of the hose nipple relative to FIG. 3,

(7) FIG. 5 a further connecting coupling according to the invention in a side view,

(8) FIG. 6 a second connecting coupling according to the invention in a side view,

(9) FIG. 7 a third connecting coupling according to the invention in a side view,

(10) FIG. 8 a fourth connecting coupling according to the invention in a side view,

(11) FIG. 9 a fifth connecting coupling according to the invention in a side view,

(12) FIG. 10 a sixth connecting coupling according to the invention in a side view,

(13) FIG. 11 a seventh connecting coupling according to the invention in a side view,

(14) FIG. 12 an eighth connecting coupling according to the invention,

(15) FIG. 13 a ninth connecting coupling according to the invention in a side view,

(16) FIG. 14 a tenth connecting coupling according to the invention in a side view,

(17) FIG. 15 an eleventh connecting coupling according to the invention in a side view,

(18) FIG. 16 a twelfth connecting coupling according to the invention in an oblique top view,

(19) FIG. 17 the connecting coupling from FIG. 16 in a view rotated by 90° about the longitudinal axis of the hose nipple,

(20) FIG. 18 the connecting coupling from FIG. 16 in a side view,

(21) FIG. 19 the connecting coupling from FIG. 16 in a side view rotated by 90° about the longitudinal axis of the hose nipple relative to FIG. 18,

(22) FIG. 20 the connecting coupling from FIG. 16 in an oblique bottom view,

(23) FIG. 21 the connecting coupling from FIG. 16 in a view rotated by 90° about the longitudinal axis of the hose nipple relative to FIG. 20,

(24) FIG. 22 an extract from FIG. 9 with the rib,

(25) FIG. 23 a further connecting coupling according to the invention in a side view,

(26) FIG. 24 an extract from FIG. 23 is similar to FIG. 9,

(27) FIG. 25 the extended rib from FIG. 24,

(28) FIG. 26 a three-dimensional oblique view of the connecting coupling from FIG. 23,

(29) FIG. 27 a further connecting coupling according to the invention in a three-dimensional oblique view similar to FIG. 25,

(30) FIG. 28 a rounded rib profile of a rib of a connecting coupling according to the invention,

(31) FIG. 29 an angular rib profile of a rib of a connecting coupling according to the invention,

(32) FIG. 30 a rib profile of a rib of a connecting coupling according to the invention with an angular head region and rounded foot region,

(33) FIG. 31 a further connecting coupling according to the invention in an oblique top view,

(34) FIG. 32 the connecting coupling from FIG. 31 in a view rotated by 90° about the longitudinal axis of the hose nipple,

(35) FIG. 33 the connecting coupling from FIG. 31 in a side view,

(36) FIG. 34 the connecting coupling from FIG. 31 in a side view rotated by 90° about the longitudinal axis of the hose nipple relative to FIG. 33,

(37) FIG. 35 the connecting coupling from FIG. 31 in a side view rotated by 90° about the longitudinal axis of the hose nipple relative to FIG. 34,

(38) FIG. 36 the connecting coupling from FIG. 31 in a side view rotated by 90° about the longitudinal axis of the hose nipple relative to FIG. 35,

(39) FIG. 37 the connecting coupling from FIG. 31 in an oblique bottom view,

(40) FIG. 38 the connecting coupling from FIG. 37 in an oblique bottom view rotated by 90° about the longitudinal axis of the hose nipple,

(41) FIG. 39 the connecting coupling from FIG. 31 in a top view,

(42) FIG. 40 the connecting coupling from FIG. 31 in a bottom view,

(43) FIG. 41 a further connecting coupling according to the invention with continuous ribs oriented in parallel, in a three-dimensional oblique view,

(44) FIG. 42 the connecting coupling from FIG. 41 in a side view,

(45) FIG. 43 the connecting coupling from FIG. 41 in a side view rotated by 90° about the longitudinal axis relative to FIG. 42,

(46) FIG. 44 a further connecting coupling according to the invention with a conical base body,

(47) FIG. 45 a side view of the connecting coupling from FIG. 44,

(48) FIG. 46 a further connecting coupling according to the invention with non-crossing circumferential ribs which are oriented obliquely relative to each other and to a longitudinal axis, in a three-dimensional oblique view,

(49) FIG. 47 a side view of the connecting coupling from FIG. 46,

(50) FIG. 48 a sectional view through the connecting coupling from FIG. 46 along the section line in FIG. 47,

(51) FIG. 49 a further connecting coupling according to the invention with ribs which each form eyes, in an oblique bottom view,

(52) FIG. 50 the connecting coupling from FIG. 49 in an oblique top view, and

(53) FIG. 51 the connecting coupling from FIG. 49 in a side view.

DETAILED DESCRIPTION

(54) FIG. 1 shows a connecting coupling according to the invention, designated as a whole with 1, on which a hose end 2 of a hose 3 is applied. The hose end 2 is crimped with a crimp sleeve 4 in the known fashion.

(55) The connecting coupling 1 furthermore has a connecting piece 5 with which the hose 3 may be connected to a fitting, a further hose or another connection point.

(56) FIG. 2 shows the connecting coupling 1 in an illustration cut open along an axial plane. It is evident that the connecting coupling 1 has a hose nipple 6 which is pushed into the hose end 2 for use. A rib structure 7 (see FIG. 3) is formed on an outside of the hose nipple 6. The rib structure 7 serves for tension relief and comprises at least one rib 8.

(57) FIGS. 3 and 4 show the connecting coupling 1 from two side views, rotated relative to each other. When FIGS. 3 and 4 are viewed together, it is evident that the rib 8 is formed as a closed loop and has at least one direction change in its course which leads out from a circumferential direction.

(58) The rib 8 has a first rib portion 9 and a second rib portion 10. The rib portions 9 and 10 are each oriented obliquely to a longitudinal axis 11 of the hose nipple 6 and obliquely to a radial plane which stands perpendicularly on the longitudinal axis 11, i.e. also obliquely to a circumferential direction lying in the radial plane. The terms circumference, tangent and radius in this description may relate to the longitudinal axis 11.

(59) Here, the rib portions 9 and 10 each follow a course direction 17, 18 which is defined by a tangent along the course. The course direction 17 of the first rib portion 9 is here not oriented parallel to the course direction 18 of the second rib portion 10. Rather, in the exemplary embodiment, it is provided that the course directions intersect at a point. In further exemplary embodiments, it is provided that the course directions do not intersect but are arranged skewed relative to each other. Because of the change in course direction 17, 18, a direction change of the rib 8 is achieved which occurs between the first rib portion 9 and the second rib portion 10.

(60) Because of the arrangement of the rib portions 9 and 10, it is ensured that an applied hose end 2 cannot slip in the circumferential direction along the rib 8, so security against twisting is achieved.

(61) Holding portions 12 are formed between the first rib portion 9 and the second rib portion 10. In the exemplary embodiment, the holding portions 12 run approximately along a radial plane, i.e. in the circumferential direction. The holding portions 12 each ensure tension relief. A rib portion 9, 10 is arranged at both ends of each of the holding portions 12 and delimits the holding portion 12. It may also be said that each holding portion 12 constitutes a second rib portion 10 in the sense of this description, since the course direction 17 of the first rib portion 9 runs at an angle to the circumferential direction. The rib 8 undergoes a respective direction change between the first rib portion 9 and the holding portion 12, and between the holding portion 12 and the second rib portion 10.

(62) In addition to the rib 8, the rib structure has further ribs 13. The further ribs 13—in the exemplary embodiment there are four further ribs 13—are in principle formed similarly to the rib 8.

(63) The exemplary embodiment shows that the further ribs 13 each run at a constant distance from the rib 8.

(64) In the exemplary embodiment, the connecting coupling 1 is made of plastic in the injection molding process. The depiction in FIG. 4 is selected such that a tool separating line lies in the drawing plane and runs around the entire contour of the connecting coupling 1.

(65) The rib 8 and the further ribs 13 are configured such that the two-part injection molding tool can be separated for removal from the mold, in a direction standing perpendicularly to the drawing plane in FIG. 4, without colliding with the rib structure. This achieves that at every point of their course, the rib 8 and the further ribs 13 are each oriented with a tangential direction at their side face tangentially to the mold removal direction, or at least such that no undercuts occur which could hinder mold removal.

(66) It is clear from FIG. 3 that the rib 8 in rib portion 9 and rib portion 10 does not protrude in the radial direction from the preferably cylindrical base body 14 of the hose nipple 6, but slopes relative to the radial direction so as to give the described removability from the mold.

(67) A connecting aid 16 is formed on the free end 15 of the hose nipple 6. The connecting aid 16 is formed tapering towards one end, preferably conically.

(68) In order to push the hose end 2 over the rib structure 7, the outer diameter of the connecting aid 16 at its thickest point, i.e. the maximum outer diameter of the connecting aid 16, is at least equal to or even larger than the maximum outer diameter of the rib structure 7.

(69) FIGS. 5 to 21 show further exemplary embodiments of the invention. Functional and design details and components which are similar or identical to the details and components of the preceding exemplary embodiment carry the same reference signs and are not described separately again. The statements relating to FIGS. 1 to 4 therefore apply accordingly to FIGS. 5 to 21.

(70) The exemplary embodiment in FIG. 5 differs from the exemplary embodiment in FIGS. 1 to 4 in that only three further ribs 13 are provided.

(71) In the exemplary embodiment according to FIG. 6 however, only two further ribs 13 formed.

(72) In further exemplary embodiments, different numbers of further ribs 13 are formed, for example more than four or less than two.

(73) The exemplary embodiment in FIG. 7 differs from the preceding exemplary embodiments in that the holding portions 12 are each formed shorter. Thus, the rib 8 has a whole has eight holding portions 12 with rib portions 9, 10 in between.

(74) The exemplary embodiment in FIG. 8 differs from the preceding exemplary embodiments in that the first rib portion 9 is set more steeply and runs parallel to the longitudinal axis 11, while the second rib portion 10 is oriented in the circumferential direction and runs in a radial plane. This achieves that the second rib portion 10 also acts as a holding portion. The angle between the course direction 17 of the first rib portion 9 and the course direction 18 of the second rib portion 10 in the example is 90°.

(75) The exemplary embodiments in FIGS. 9 and 10 differ from the preceding exemplary embodiments in that the rib portions 9, 10 are not rectilinear but curved.

(76) If we consider a tangent at any point in each of the rib portions 9, 10, this gives a course direction 17, 18 of the rib 8 at this point which runs at an angle to a corresponding course direction 17, 18 in the respective other rib portion 9, 10.

(77) The infinitesimal following of the course direction 17, 18 by the rib 8 in the respective rib portion 9, 10 is shown in FIG. 22 in an enlargement of FIG. 9. It is evident that the rib 8 follows the course directions 17, 18 only as a tangent. Beyond the foot point 19 of this tangent, i.e. beyond the point at which the course directions 17, 18 each intersect the rib 8, the deviation y rises more than linearly with the distance x from the foot point. The region at which it could still be said, in the sense of this invention, that the rib 8 follows the respective course directions 17, 18, is indicated in FIG. 22 with reference signs 9 and 10.

(78) In the exemplary embodiment in FIG. 9, in addition each holding portion 12 is curved. On average, the holding portion 12 is still oriented approximately along a radial plane or in the circumferential direction.

(79) In the exemplary embodiment of FIG. 10, the holding portions 12 are however formed substantially straight.

(80) In the exemplary embodiment according to FIG. 11, the rib structure 7 does not have continuous ribs, but the ribs 8 and the further ribs 13 each extend only over a portion of the circumference. The ribs 8 (and the further ribs 13) are here each composed of two rib portions 9 and 10, without a holding portion 12 being formed in between. Each rib 8 is here limited to a narrow portion of the circumference.

(81) In the exemplary embodiment in FIG. 12, only one further rib 13 is formed in addition to the rib 8.

(82) In the exemplary embodiment according to FIG. 13, the further ribs 13 are not spaced evenly from each other and from the rib 8.

(83) In further exemplary embodiments, the further ribs 13 are not guided at a constant distance from the rib 8, but some or all of the further ribs 13 are however formed geometrically identically but oriented offset by a rotation about the longitudinal axis 11 relative to the rib 8. In this way for example, it can easily be ensured that the rib portions 9, 10 are not aligned along the longitudinal axis 11.

(84) FIGS. 14 and 15 show arrangements in which the further ribs 13 are each arranged offset by an angular amount relative to the rib 8. This angular amount may for example be 90°, 45° or 22.5°, or another amount.

(85) In further exemplary embodiments, other numbers of ribs 8, 13 and other distances between the individual ribs 8, 13 of the rib structure 7 are implemented. In further exemplary embodiments, mixed forms are implemented in which individual ribs or rib forms of the exemplary embodiments described above are combined with each other.

(86) In the exemplary embodiment in FIGS. 16 to 21, the connecting piece 5 is indicated by dotted lines. The connecting piece 5 may have any arbitrary form depending on the needs of the connecting point. This also applies to the other exemplary embodiments.

(87) It is evident from FIGS. 16 to 21 that the rib portions 9, 10 are not oriented radially with their side faces 23, in order to guarantee the described removability from the mold. For this, the ribs 8, 10 slope at every point of their course relative to the base body 14 such that they align with the viewing direction in the illustration in FIG. 20. FIG. 19 however shows side faces 23 of the rib portions 9, 10 which become visible because of this orientation.

(88) In general, it may be said that the orientation of the viewing direction in FIGS. 3, 5, 6, 10, 12, 13 and 18 is selected similar to that in FIG. 3, i.e. the viewing direction is oriented transversely to the mold removal direction. In FIGS. 4 and 19 however, the mold removal direction corresponds to the viewing direction.

(89) In the exemplary embodiment in FIG. 11, it is clear that the described removability from the mold is not guaranteed. From the other exemplary embodiments however, it is clear how the V-shaped ribs 8, 13 must be changed in order to achieve a removability from the mold.

(90) FIGS. 23 to 26 show a further exemplary embodiment according to the invention. Functional and design details and components which are similar or identical to details and components of the preceding exemplary embodiment carry the same reference signs and are not described again separately. The statements relating to FIGS. 1 to 22 therefore apply accordingly to FIGS. 23 to 26. Here, FIG. 25 shows the rib 8 from FIG. 24 extending from the cylindrical base body 14 and lying in a plane.

(91) The exemplary embodiment in FIGS. 23 to 26 differs from the preceding exemplary embodiments in that the rib profile 20 is not rounded but rectangular.

(92) It is evident that the ribs 8, 13 in rib portions 9, 10 follow a respective course direction 17, 18, as described in detail with reference to FIG. 22.

(93) FIG. 27 shows a further exemplary embodiment according to the invention. Functional and design details and components which are similar or identical to details and components of the preceding exemplary embodiment carry the same reference signs and are not described again separately. The statements relating to FIGS. 1 to 26 therefore apply accordingly to FIG. 27.

(94) It is evident that the course of the ribs 8, 13 resembles that in FIG. 8. However, the rib profile 20 here is again rectangular and not rounded.

(95) FIG. 28 shows a rib profile 20, i.e. a cross-section through the rib 8, 13 transversely to the course direction 17, 18, as present for example in FIGS. 1 to 22. The rib profile 20 has a foot region 21 and a head region 22, between which the side faces 23 of the rib profile 20 are formed.

(96) It is evident that the rib profile 20 is formed rounded with transitions in the head region 22 and in the foot region 21.

(97) In contrast, the rib profile 20 in FIG. 29 is formed angular in the head region 22 and in the foot region 21. The ribs 8, 13, for example the ribs 8, 13 in FIGS. 23 to 26, therefore have longitudinal edges 24.

(98) FIG. 30 shows a substantially triangular rib profile 20. This is rounded in the foot region 21 and angular in the head region 22. There is thus a single longitudinal edge 24.

(99) In further exemplary embodiments, the rib profile is rounded in the head region and angular in the foot region, while in other exemplary embodiments the rib profile is rounded in the foot region and angular in the head region.

(100) In further exemplary embodiments, a relief groove is formed in the foot region 21 of the ribs 8, 13, 26. Thus notch stresses can be reduced.

(101) In the exemplary embodiments shown, all ribs 8 and further ribs 13 of a connecting coupling 1 have mutually corresponding rib profiles 20.

(102) In further exemplary embodiments, the rib and at least one of the further ribs have mutually differing rib profiles. This may be accompanied for example by an angular or rounded design of the rib profile in the foot region and/or in the head region.

(103) FIGS. 31 to 40 show various views of a further connecting coupling 1 according to the invention. Here, several ribs are formed, which are each configured as ellipses running around the base body 14. Each of the three ribs 8, 26 shown in FIG. 31 or FIG. 33 is positioned skewed relative to a circumferential direction 25 of the hose nipple 6, which is illustrated in FIG. 33 by means of an arrow. Each of the ribs 8, 26 runs in a closed loop around the base body 14. The ribs 8, 26 are spaced apart from each other and do not cross.

(104) The ellipse form here results from the fact that the base body 14 has a cylindrical outer contour, and the ribs 8, 26 each run in a plane and obliquely relative to said circumferential direction 25 which—as shown in FIG. 33—runs perpendicular to the longitudinal axis 11 of the connecting coupling 1.

(105) FIG. 34 furthermore illustrates that in this embodiment too, individual ribs 8, 26 undergo a direction change along their respective course. As the dotted arrows show, individual ribs 8, 26 have portions which follow different course directions 17, 18. In FIG. 34, these directions 17, 18 meet at a point below which the topmost of the three ribs shown undergoes a direction change: to the left of the point of direction change, the rib 8 rises from left to right, while it thereafter falls again i.e. moves in the direction of the connecting aid 16.

(106) Finally, FIGS. 33 and 35 clearly show that the two lower ribs 26 are tilted relative to each other and are not parallel. Alternatively, it could be said that the ribs 8, 26 are indeed formed similarly but are arranged twisted about a longitudinal axis 11 relative to each other.

(107) FIGS. 41 to 43 show a further exemplary embodiment according to the invention. Functional and design details and components which are similar or identical to details and components of the preceding exemplary embodiment carry the same reference signs and are not described again separately. The statements relating to FIGS. 1 to 40 therefore apply accordingly to FIGS. 41 to 43.

(108) The exemplary embodiment in FIGS. 41 to 43 differs from the exemplary embodiment in FIGS. 31 to 40 at least in that the further ribs 13 are oriented not obliquely or at an angle 28 to the respective adjacent ribs 8, 13, but parallel to the rib 8. Each rib 8, 13 accordingly describes a plane in which the rib 8, 13 lies, and these planes lie parallel to each other.

(109) FIGS. 44 and 45 show a further exemplary embodiment according to the invention. Functional and design details and components which are similar or identical to details and components of the preceding exemplary embodiment carry the same reference signs and are not described again separately. The statements relating to FIGS. 1 to 43 therefore apply accordingly to FIGS. 44 and 45.

(110) This exemplary embodiment differs from the preceding exemplary embodiments at least in that the base body 14 is not cylindrical but conical.

(111) In further exemplary embodiments, other tapering profiles may be formed, for example a trumpet-like base body.

(112) These base bodies may also be formed in the preceding and/or the following exemplary embodiments.

(113) The exemplary embodiment in FIGS. 44 and 45 also differs from the other exemplary embodiments in that the direction change in the ribs 8, 13 is in each case significantly more than 90°, for example lies between 130° and 140°.

(114) FIGS. 46 to 48 show a further exemplary embodiment according to the invention. Functional and design details and components which are similar or identical to details and components of the preceding exemplary embodiment carry the same reference signs and are not described again separately. The statements relating to FIGS. 1 to 45 therefore apply accordingly to FIGS. 46 to 48.

(115) This exemplary embodiment differs from the preceding exemplary embodiments at least in that a height h1, h2 (see FIG. 48) of the ribs 8, 13 varies along the course of these ribs 8, 13. Thus rib portions are formed with a smaller height h1 and ones with a larger height h2. In this way, tongue-like moldings 29 are formed. This in itself achieves security against twisting and reinforces an axial holding force.

(116) FIGS. 49 to 51 show a further exemplary embodiment of the invention. Functional and design details and components which are similar or identical to details and components of the preceding exemplary embodiment carry the same reference signs and are not described again separately. The statements relating to FIGS. 1 to 48 therefore apply accordingly to FIGS. 49 to 51.

(117) The exemplary embodiment in FIGS. 49 to 51 differs from the preceding exemplary embodiments in that each rib 8, 13 divides and recombines again at several points in order to form an eye 30. This division in each case forms two second rib portions 10, the course directions 18 of which (only shown for one rib portion 10 in FIG. 51) enclose an angle with the course direction 17 of the adjacent first rib portion 9.

(118) To summarize, in a connecting coupling 1, it is proposed to orient at least two rib portions 9, 10 at an angle to each other in at least one rib 8 of a rib structure 7 of at least one hose nipple 6, such that the course directions 17, 18 in the rib portions 9, 10 are oriented at an angle relative to each other, and/or to configure the at least one rib 8 so as to be cross-free and continuous and to orient this axially obliquely in at least one rib portion 9, 10.

LIST OF REFERENCE SIGNS

(119) 1 Connecting coupling 2 Hose end 3 Hose 4 Crimp sleeve 5 Connecting piece 6 Hose nipple 7 Rib structure 8 Rib 9 (First) rib portion 10 (Second) rib portion 11 Longitudinal axis 12 Holding portions 13 Further rib 14 Base body 15 Free end 16 Connecting aid 17 (First) course direction 18 (Second) course direction 19 Foot point 20 Rib profile 21 Foot region 22 Head region 23 Side face 24 Longitudinal edge 25 Circumferential direction 26 Further rib 27 Further rib portion 28 Angle 29 Molding 30 Eye h1 (Lesser) height h2 (Greater) height