Abstract
An arrangement in accordance with the invention comprises a cable clamp and at least one cable. The cable clamp has at least two openings arranged next to one another through which the at least one cable on in each case one cable is guided with the formation of two cable portions passing through the openings. The openings each have a clamping slot in a mutually facing opening region, and the two cable portions are held directly outside adjacent to the openings by a loop of the at least one cable or of further cable by which loop the two cable portions are forceable into the clamping slot.
Claims
1.-12. (canceled)
13. A arrangement comprising: a cable clamp and at least one cable; the cable clamp has at least two openings arranged next to one another through which the at least one cable is guided with the formation of two cable portions which pass through the at least two openings; the openings each having a clamping slot which mutually face an opening region; and the two cable portions are held outside and adjacent to the openings by a loop of the at least one cable or by a further cable by which the two cable portions are forceable into the clamping slot.
14. The arrangement according to claim 13, wherein: the at least one cable or the further cable is elastically stretchable or is connected to at least one elastically stretchable coupling element so that an elastic restoring force results which forces the cable portions towards one another into the clamping slots.
15. The arrangement according to claim 13, comprising: in one piece, cable clamps which comprise a body with a longitudinal extension greater than a transverse extension of the body; and the openings penetrate the body in a direction of penetration oriented parallel to the transverse extension direction or at an angle<30 relative to a transverse extension direction.
16. The arrangement according to claim 14, comprising: in one piece, cable clamps which comprise a body with a longitudinal extension greater than a transverse extension of the body; and the openings penetrate the body in a direction of penetration oriented parallel to the transverse extension direction or at an angle<30 relative to a transverse extension direction.
17. The arrangement according to claim 13, wherein: each opening has a cross-sectional shape which tapers continuously or stepwise in the direction of the other opening; the cable has a round cable cross-section having a cable diameter ds, and the cross-sectional shape in the tapered region comprises at least one region having a width with w<0.5 d.sub.s which is part of the clamping slot.
18. The arrangement according to claim 13, wherein: the openings are configured to have mirror-symmetrical, and a vector normal to a plane of symmetry is oriented parallel to a direction of the longitudinal extension.
19. The arrangement according to claim 13, wherein: each of the slots has at least two mutually facing contact surfaces with which the cable portions come into contact at least during clamping; and at least one of the contact surfaces has a structured surface structured which increases frictional forces acting between the cable portions and the clamping slots.
20. The arrangement according to claim 17, wherein: the cable clamp includes a slit completely penetrating the cable clamp, and the openings are interconnected in a region between the clamping slots via the slit so that the cross-sectional shapes of the openings form a single closed contour, or that the cable clamp has two slits making the openings each accessible from outside the slot from a longitudinal extension direction; and the cable portions are introducable into the openings via the slit or the slits which transversely extend in the penetration direction.
21. The arrangement according to claim 13, wherein: the cable clamp has surface portions into which the openings open, and the at least one of the surface portions is concave on a side of the loop in a region which contacts the loop.
22. The arrangement according to claim 21, wherein: cable ends of the at least one cable are connected directly to form a closed cable ring, which on both sides of the cable clamp includes one loop, so that a first loop and a second loop is formed.
23. The arrangement according to claim 16, wherein: the cable clamp has a first and a second side relative to a plane perpendicular to the transverse extension direction; on the first side first cable portions adjoin the cable portions and are connected to a first object, on the second side of the cable clamp second cable portions adjoin the cable portions and are interconnected or have at least one means which prevents pulling the second cable portions through the openings; and the further cable is fixed with loose ends being on the first object or a second object which forms a loop.
24. The arrangement according to claim 13, comprising: an additional element including at least one through opening through which cable portions emerge from the cable clamp; and the emerging cable portions have a spacing corresponding to spacing of the cable portions which are guided in the openings when fixed into the clamping slots.
25. The arrangement according to claim 19, wherein: the surface structuring is spatially directed, and has at least one rib arranged on the at least one contact surface and which subtends an angle between 0 and 15 relate to a transverse extension direction.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0061] The invention is described hereinafter without restricting the general inventive idea by means of exemplary embodiments with reference to the drawings. In the figures, in schematic view in each case:
[0062] FIGS. 1a, b, c, and d each show a cable with a cable clamp which can be arranged according to the invention.
[0063] FIG. 2a shows a basic form of a cable clamp in perspective view with angles of , of 0.
[0064] FIG. 2b shows a basic form of a cable clamp in perspective view with angles , >0.
[0065] FIG. 2c, and d show a cable clamp with cable sections in cross-sectional view.
[0066] FIGS. 3a, b, and c show a first embodiment of the invention with a diagram without objects being fixed and in two different variants with fixing of several objects to one another.
[0067] FIG. 4 shows a second embodiment of the arrangement according to the invention without objects being fixed.
[0068] FIG. 5a, and b show a second embodiment in two different variants without objects being fixed.
[0069] FIGS. 6a, and b show a cable clamp with one or two slits.
[0070] FIG. 7 shows a cable clamp with free-form openings.
[0071] FIGS. 8a, and b show cable clamps with different body shapes.
[0072] FIGS. 9-11 show cable clamps with different body shapes.
[0073] FIG. 12 shows a cable clamp with a handle structure on the body.
[0074] FIGS. 13a, and 13b show a cable clamp with nonlinear tapering of the cross-sectional shape of the opening.
[0075] FIG. 14 shows a cable clamp with contact surfaces having a directional structuring.
DETAILED DESCRIPTION OF THE INVENTION
[0076] FIGS. 1a-c show different embodiments of an arrangement comprising a cable clamp and precisely one cable which can be arranged according to the invention for fixing objects. FIG. 1a shows the simplest case of a cable clamp 1 and a closed cable ring 2, for example, in the form of a closed rubber band, in which the rubber band is guided through two openings 3, 3 of the same type in the cable clamp 1. The rubber band is then divided by the cable clamp 1 into two sides, which each form a rubber band loop 21, 22 starting from the cable clamp 1. The loop size is changed by displacement of the cable clamp along the cable or the cable portions. The two openings 3, 3 of the cable clamp 1 are here arranged parallel and have mirror-symmetry and have a tapering opening cross-section, with the two openings 3, 3 tapering towards one another. For assembly the cable 2 with the open ends can be guided through the openings 3, 3 and then joined in a firmly bonded manner, non-positively or positively (FIG. 1a) or by means of a connecting element 20 (FIG. 1b). In FIG. 1b additionally or alternatively to the connecting element 20, a firmly bonded, non-positive or positive connection 19 of the cable ends is indicated. The connecting element 20 shown in FIG. 1b can also serve as tensile element and improve the handling of the arrangement whereby it is not necessary to pull directly on the cable. The cable ends can also be connected merely by knotting (not shown). FIG. 1c shows a further variant in which the cable ends are each secured individually against unintentional sliding out from the openings 3, 3. For this purpose, for example, a securing means 39, 39 can be attached to each cable end or a knot can also serve as such at the cable end, as shown in simplified view in FIG. 1c.
[0077] FIG. 1d shows a cable 2 with an elastic coupling element 43. In this case, the cable 2 itself and also the part of the cable which subsequently forms the loop 6 (FIG. 3a) can have a lower elasticity. The restoring force which forces the cable portions 4, 4 into the clamping slots 5, 5 then results from an elastic stretching of the coupling element and is imparted via the cable. Such a coupling element can, for example, be an elastic spring.
[0078] FIG. 2a shows the fundamental structure of the cable clamp 1. This has a body 30 with a longitudinal extension 7 in the longitudinal extension direction 31 and a transverse extension 8 in the transverse extension direction 32 and a vertical extension 9 in the vertical extension direction 33. The openings 3, 3 penetrate the cable clamp completely in the penetration direction which here coincides with the transverse extension direction. The openings 3, 3 here for example have a cross-sectional shape which consists of segments of a large and a small circle which are each connected via straight lines which open tangentially onto the circles. The openings 3, 3 therefore have tapering opening regions 14, 14 which form the clamping slots 5, 5.
[0079] The penetration directions 34, 34 of the openings need not however be aligned parallel to the transverse extension direction 32 nor do the openings through the cable clamp 1 need to have the same cross-sectional shape or cross-sectional area. Thus, for example, the cable clamp 1 shown in FIG. 2b, for example, has openings 3, 3 with penetration direction 34, 34 which enclose an angle , 0 with the transverse extension direction 32. Furthermore, FIG. 2b also shows openings 3, 3 whose cross-sectional area through the cable clamp is not constant but widens towards the rear in penetration direction 34, 34 in FIG. 2b.
[0080] FIG. 2c shows the cable clamp 1 in cross-section together with the cable portions 4, 4 in each case before and after clamping. It is possible to see the clear reduction in cross-section and change in cross-sectional shape experienced by the cable portions 4, 4, which preferably have a round cable cross-section in the undeformed state, on entry or in the clamping slot.
[0081] In FIG. 2d the various opening regions are specified in detail. The openings 3, 3 have a cross-sectional shape with respectively one first region 13, 13 and respectively one second region 14, 14. The first region 13, 13 is preferably adapted to the cable cross-section in such a manner that the cable or the cable portions 4, 4 in the undeformed state or in only a slightly stretched state in which the cable portions 4, 4 only experience a slight reduction in cross-section, preferably less than 20% of the cross-sectional area, can be pulled through the cable clamp without experiencing any clamping. Any sliding of the cable clamp without external action can however be avoided by such a dimensioning of the first region 13, 13. The first region 13, 13 preferably has an extension in the longitudinal extension direction b.sub.1, b.sub.1 which at least corresponds to the cable diameter d.sub.s.
[0082] The second region 14, 14 has a reduced clear width with w<0.7d.sub.s, preferably w<0.6d.sub.s, particularly preferably w<0.5 d.sub.s. The second region 14, 14 defines the contour of the clamping slot 5, 5 of the respective opening 3, 3 in the cross-sectional plane being considered. The second region 14, 14 preferably has at least one extension in the longitudinal extension direction b, b which at least corresponds to the cable diameter d.sub.s. Preferably the first region 13, 13 and the second region 14, 14 have a distance D from one another starting from the respective center of the region which corresponds at least to the cable diameter.
[0083] If the cable portions 4, 4, which have a circular cable cross-section in the undeformed state, are introduced into the second region 14, 14 or into the clamping slot 5, 5, these undergo at least one cross-sectional deformation so that they acquire a flattened cross-sectional shape adapted to the contact surfaces 16 (FIG. 2c). As a result of the cross-sectional variation, restoring forces are induced in the cable portions 4, 4 which result in a pressing of the cable portions 4, 4 onto the opposite contact surfaces 16 of the clamping slots 5, 5 and thus in an increase in friction between the cable portions 4, 4 and the contact surfaces 16. When the clamping slot is suitably configured, the contact surfaces 16 can go over into one another. Due to the increased friction the cable clamp 1 can no longer be shifted along the cable 2 or only with significantly higher force. A further increase in the frictional forces between the deformed cable portions 4, 4 and the contact surfaces 16 can be achieved by the contact surfaces 16 having a friction-increasing surface structuring at least in part.
[0084] In addition, this deformation or squeezing can also result in a lengthening of the cable portions. The restoring force induced by the lengthening of the cable portions brings about an increase in the clamping force.
[0085] A transition region 29, 29 can extend between the first region 13, 13 and the second region 14, 14 in which the cross-sectional shape of the opening 3, 3 tapers continuously or abruptly.
[0086] FIG. 3a shows how a section of the loop 21 forms the loop 6 which pulls the cable portions running in the openings 3, 3 into the clamping slots by application of an elastic force directed in the direction of the tapering of the openings 3, 3 (see arrows in FIG. 3a and also arrows in FIG. 2c) and counteracts any emergence of the cable portions from the clamping slots. FIGS. 3b and 3c show two variants as to how the arrangement according to the invention can be used for fixing objects, here for example, for bundling pins 25. The first loop 21 is guided around the objects/pins 25 and then pulled over the second loop 22 and the cable clamp 1. The first loop 21 embraces the pins 25 and the portions of the first loop 21 emerging from the cable clamp 1 (or the second loop 22 in FIG. 3c). For locking the arrangement, the second loop 22 is now pulled away by the user from the objects/pins 25 to be fixed and the cable clamp 1, wherein the cable clamp 1 is pressed by the user towards the objects/pins 25 to be fixed. By this means a tensile stress is exerted on the first loop 21 which results in the penetration of the two cable portions 4, 4 into the tapered second regions 14, 14 of the openings 3, 3 which comprise the clamping slots 5, 5 and thus locks the two cable portions 4, 4. Since the tensile stress on the first loop 21 is also maintained during slight movements, the two cable portions 4, 4 are held and secured in the tapered second regions 14, 14 which are part of the respective clamping slots 5, 5. The fastening is now completed. To release the connection it is sufficient to pull the cable clamp 1 away from the fixed objects 25.
[0087] One possibility for fixing an object to another can be achieved whereby the first loop 21 is guided through an eye or an opening in one of the objects and then pulled over the second loop 22 and the cable clamp 1. This results in a similar arrangement as in FIG. 5a only with the difference that cable ends from two different cables are not fixed on the object 25 but the first loop 21 is guided through an opening in the object 25 (not shown in FIG. 5a).
[0088] An alternative possibility as to how the first loop 21 can embrace the cable clamp 1 is shown in FIG. 3c. In this variant, the first loop 21 is pulled over the two longitudinal ends 36, 36 of the clamp 1 instead of needing to be guided over the second loop 22. In this variant also this results in an action of force from the first loop 21 onto the two cable portions 4, 4 guided through the clamp so that these are pressed and locked in the tapered second regions 14, 14 of the openings 3, 3.
[0089] FIGS. 4 and 5a and 5b show a second embodiment of the arrangement according to the invention in which a cable 2 is guided through the cable clamp 1 forming a loop and the loop 6 is formed by a portion of a further cable 40. The two open ends of the cable 2 and the further cable 40 can be fastened to the same object 25 (FIG. 5a) or to two different objects 25, 26 (FIG. 5b), wherein the two different objects 25, 26 can each be part of a further object. Thus, for example according to FIG. 5a the object 25 connected to the cables of the arrangement according to the invention can be fixed to the object 26.
[0090] In order to fix the object 25 to the object 26, as shown in FIG. 5a, the first loop 21 is guided in a first direction and the second loop 22 is guided in a second direction around the object 26 and the first loop 21 is pulled over the second loop 22 and the cable clamp 1 so that both loops jointly embrace the object 26. The loop 22 is then pulled away from the object 26 by the user whilst the cable clamp 1 is pressed towards the object 26 by the user. By this process a tensile stress is applied to the first loop 21 which leads to the locking of the two cable portions 4, 4 in the clamping slots 5, 5 (not visible in FIG. 5a). Optionally elastic coupling elements 43 are indicated in FIGS. 5a and 5b which have a higher elasticity than the cable 2 or the further cable 40. Such a coupling element 43 can be an elastically stretchable cable which is part of the at least one cable 2 or the further cable 40, an elastic spring or an elastic part of objects to be fixed, such as for example an elastic fabric on a sack from which the cables lead out.
[0091] In order to fix the object 25 on the object 26, as shown in FIG. 5b, the first loop 21 is pulled over the second loop 22 and the cable clamp 1 so that it embraces the sections of the second loop 22 emerging from the cable clamp 1. For tightening the arrangement, the cable clamp is held firmly by the user and is pulled on the second loop 22 so that parts of the cable pieces 11, 11 are pulled through the cable clamp and the loop 22 is enlarged forming a tensile stress. The tensile force acting between the object 25 and the object 26 is specified by the size of the tensile force exerted by the user between the cable clamp 1 and the loop 22. A force equilibrium is then established between the cable pieces 11, 11 and the further cable 40 so that a tensile force acting on the cable 40 and the first loop 21 has the result that the two cable portions 4, 4 are pulled into the clamping slots 5, 5.
[0092] Instead of the one cable 2 which is guided through the cable clamp 1 forming a loop, alternatively two separate cables (not shown) can be guided through the openings 3, 3 of the cable clamp 1 whose ends are connected in a firmly bonded manner, non-positively or positively so that a type of loop is again formed. The ends can also remain open.
[0093] In a preferred embodiment, a securing element/additional element 28 in the form of a displaceably mounted clamping ring can be provided (FIG. 4) which is arranged on the side of the cable clamp facing away from the loop and by which the cable portions are held directly outside the cable clamp 1 at a distance from one another which corresponds to the spacing of the cable portions 4, 4 in the clamping slots 5 (FIG. 4). If the clamping ring 28 is pushed towards the cable clamp 1, this also brings about a force on the two cable portions 4, 4 in the cable clamp 1 in the direction of the tapering. The security against release can be further increased with such a clamping ring 28.
[0094] FIGS. 6a and 6b show two embodiments for the cable clamp in which a previously closed cable ring can still be assembled with the cable clamp 1. For this purpose, the cable clamp 1 according to FIG. 6a has a slit 17 which completely penetrates the cable clamp 1 like the openings 3, 3 and which connects the two openings 3, 3 over their entire extension through the cable clamp 1. A cable portion of the cable ring can then be pulled over through the slit 17 from one of the openings e.g. 3 into the other opening, e.g. 3.
[0095] Alternatively, according to FIG. 6b, the openings 3, 3 can be opened completely outwards through respectively one slot 17, 17, i.e. over their entire extension in the penetration direction so that the cable portions 4, 4 of the cable ring can be inserted from outside into the openings 3, 3. It is particularly advantageous if the slit width is smaller than the cable diameter d.sub.s so that the cable clamp 1 cannot be released unintentionally from the cable ring. Naturally, the slit width must be selected to be suitably large taking into account the elastic properties of the cable 2 and the cable clamp 1 so that the cable portion or the cable portions 4, 4 can be pulled through the slit 17 or the slits 17, 17 transversely to the cable direction.
[0096] FIG. 7 show two openings 3, 3 with an alternative cross-sectional shape. The slight widening 41, 41 of the openings 3, 3 in the direction of the other opening in each case has the effect that the user of the cable clamp can tactilely perceive a type of engagement when locking the cable portions in the clamping slot. However, the widened region is still not sufficiently narrowly dimensioned that a clamping of the cable can take place in this region. The openings 3, 3 here have a two-dimensional cross-sectional shape which is configured to be asymmetrical in relation to the longitudinal extension direction 31. In general, an asymmetrical configuration of the cross-sectional shape can be suitable to adapt the tapering direction of the openings 3, 3 to the direction of the force acting ultimately on the cable portions 4, 4 from the loop 6 (see arrows in FIG. 3a).
[0097] FIG. 8a shows a body 30 of a cable clamp 1 in which the surfaces into which the openings 3, 3 open are planar. In contrast to this, FIG. 8b shows a cable clamp 1 with a waisted body 30. This has a concave line 18 at least in the longitudinal extension direction 31 so that the contraction of the loop 6 as a result of the elastic restoring forces acting along the cable 2 is facilitated. FIG. 9 shows a cable clamp 1 configured to be button-like in which at least one of the surfaces is concavely arched. Here also the concave shape 18 serves to intensify the force action of the loop 6 on the two cable portions emerging from the clamp 1 and thus to increase the security against release of the cable clamp 1.
[0098] FIGS. 10-12 show further different embodiments of the cable clamp. FIG. 10 thus shows an elongate cable clamp 1, the ends 36, 36 of which are not configured to be planar but taper, for example, taper to a point. However, the ends 36, 36 can also be rounded. Due to the tapering ends 36, 36 the first loop 21, for example, can be pulled more easily over the cable clamp 1, thus improving the handling.
[0099] FIGS. 11 and 12 show cable clamps, the bodies of which are bent in the transverse extension direction 32 and thus form a concave region 18 at least on one side so that the drawing together of the loop 6 as a result of the elastic forces acting along the cable 2 is facilitated. The cable clamp 1 shown in FIG. 12 additionally has broadened regions 37, 37 in the vertical direction which are fitted with a grip structure 38. This shaping additionally facilitates the handling of the cable clamp 1.
[0100] FIGS. 13a and 13b show a further advantageous embodiment of a cable clamp 1. The cable clamp 1 is characterized by a nonlinear tapering of the cross-sectional shape of the opening 3, 3 from the first region 13, 13 over the transition region 29, 29 to the second region 14, 14. In the second region 14, 14 the contact surfaces are oriented almost parallel to one another, i.e. the normal vectors n1, n1 of the lower contact surfaces 16 shown in FIG. 13b enclose an angle , of 165 to 180 in the second region with the normal vectors n2, n2. The resulting only slight change in the clear width w, w of the opening 3, 3 in the second region 14, 14 is particularly advantageous with regard to the clamping effect and enables an even better securing against unintentional release of the cable 2 from the clamped state. As a result of the disproportionate increase in the clear width of the openings 3, 3 at least in the transition region 29, 29 compared to the second region 14, 14, the cable clamp 1 can be configured to be shorter compared to a cable clamp with a linearly varying opening width in the longitudinal extension direction 31. The cable clamp 1 is particularly easy to operate and has a very good clamping effect. Hereinafter particularly preferred values for the openings 3, 3 of the cable clamp 1 are given in this exemplary embodiment:
0.7*d.sub.s<w1, w1<1.2*d.sub.s
0.3*d.sub.s<w, w<0.5*d.sub.s (for example, the clear width w, w can decrease over the width b, b from 0.5*d.sub.s to 0.3*d.sub.s)
1.1*d.sub.s<b1, b1<1.3*d.sub.s
1.1*d.sub.s<b, b<1.4*d.sub.s
The total width 15 lies in a range between 2.3*d.sub.s and 2.8*d.sub.s.
[0101] FIG. 14 shows a further preferred embodiment of the cable clamp 1. This has a directional structuring 44, 44 on the contact surfaces 16, for example in the form of a fluting or texture. The structuring 44, 44 is preferably oriented in a direction which encloses an angle , between 0 and 15 with the transverse extension direction 32. The structuring directed in such a manner provides a further improved protection against undesired release.
[0102] A structuring oriented parallel to the transverse extension direction 32, i.e. , equal to 0, affords an engagement which is tactilely perceptible to the user as a further advantage.
[0103] A directional structuring 44, 44 with angles , >0, in particular with angles , between 5 and 15 additionally has the result that the cable portions 4, 4 are forced towards the respective clamping slot 5, 5 during displacement of the cable clamp 1. During release of the cable clamp 1 the cable portions 4, 4 are forced out of the respective clamping slot 5, 5. The directional structuring therefore provides an additional support for the preferred principle of action forming the basis of the invention whereby the loop 6 exerts an inwardly directed force on the cable portions so that these are forced towards one another into the respective clamping slots.
[0104] A cable clamp 1 having a directional structuring 44, 44 with angles , >0 then has a preferred side on which the loop 6 should then come to lie or a direction in which the cable clamp 1 should be moved for closing and a direction opposite thereto in which the cable clamp 1 should be moved for opening. In embodiments with a tensile element 20 as shown in FIG. 1b, the preferred side is defined by the tensile element 20 (cable clamp moves away from the tensile element 20 during tightening). In embodiments as shown in FIG. 1c a preferred side is also predefined since here a loop 22 is only formed on one side of the cable clamp 1. If the entire fastening element does not make any preferred direction obvious to the user, it is possible to provide the cable clamp 1 and/or the cable 2 with a corresponding feature. By this means, for example, the user can be informed as to which loop 21, 22 he is to place around the object to be fastened.
[0105] The specific configuration of the directional structuring 44, 44, for example, number, geometry (inter alia height, width, length, cross-sectional shape, angle , , spacing of individual structures) can in particular be selected with regard to the sliding friction resulting from the pairing of the material of the cable and the material of the cable clamp, the geometry of the opening 3, 3, in particular in the second region 14, 14, the elastic properties of the cable and the force to be applied for tightening/loosening.
[0106] One or more rib-like elevations arranged in parallel, for example, on the contact surfaces 16 can be provided as directional structuring 44, 44, which are raised for example by 0.03*ds to 0.1*ds from the respective contact surface 16. In the case of several rib-like elevations arranged in parallel, these can, for example, have a spacing between 0.1*ds and 0.3*ds. The longitudinal extension direction of the rib-like elevations or ribs corresponds in this case to the direction of the structuring.
[0107] In principle, all the body shapes disclosed beyond the examples shown can be combined. Also all the cable clamps can be used in all the indicated embodiments of the arrangement according to the invention. The same applies for the indicated additional features such as clamping ring, connecting element, tensile element, grip structures on the cable clamp etc.
REFERENCE LIST
[0108] 1 Cable clamp
[0109] 2 Cable
[0110] 3, 3 Openings
[0111] 4, 4 Cable portions
[0112] 5, 5 Clamping slots
[0113] 6 Loop
[0114] 7 Longitudinal extension
[0115] 8 Transverse extension
[0116] 9 Vertical extension
[0117] 11, 11 First cable portions
[0118] 12, 12 Second cable portions
[0119] 13, 13 First region
[0120] 14, 14 Second region
[0121] 15 Extension of the opening in longitudinal extension direction (width)
[0122] 16 Contact surfaces
[0123] 17, 17, 17 Slit
[0124] 18 Concave region
[0125] 19 Connection of the cable ends
[0126] 20 Connecting element, tensile element
[0127] 21 First loop
[0128] 22 Second loop
[0129] 25 First object
[0130] 26 Second object
[0131] 28 Additional element, clamping ring
[0132] 29, 29 Transition region
[0133] 30 Body
[0134] 31 Longitudinal extension direction
[0135] 32 Transverse extension direction
[0136] 33 Vertical extension direction
[0137] 34, 34 Penetration direction
[0138] 35 Surface portions
[0139] 36, 36 Ends of cable clamp
[0140] 37, 37 Broadened region of cable clamp
[0141] 38 Grip structure
[0142] 39, 39 Securing means
[0143] 40 Further cable
[0144] 41, 41 Widening
[0145] 43 Elastically stretchable coupling element
[0146] 44, 44 Directional structuring
[0147] ds Cable diameter
[0148] w, w1 Clear widths
[0149] b, b1 Widths of the regions
[0150] , Angle between penetration direction and transverse extension direction
[0151] , R Angle which can be assigned to the surface structure in relation to transverse extension direction
[0152] , Angle between the normal vectors of opposite contact surfaces n1, n2 or n1, n2 n1, n1, n2,
[0153] n2 Normal vectors to the contact surfaces
