Draw string connection, connector and method

Abstract

A pull-cord coupling (1) for a connector (100) with a push-pull locking mechanism comprises a pull cord (10) and a coupling clamp (20). The pull cord (10) is attached to and / or attachable to the coupling clamp (20) at least at one attachment point. The coupling clamp (20) is attached to and / or attachable to an outer contour (110) of the connector (100) in a form-fit and / or force-fit manner.

Description

[0001] The invention relates to a pull-cord coupling for a connector with a push-pull locking mechanism, a connector with a push-pull locking mechanism and a pull-cord coupling, and a method for attaching a pull-cord coupling to a connector with a push-pull locking mechanism.

[0002] Some electrical connectors are equipped with a push-pull locking mechanism. Push-pull locking mechanisms are particularly common for RJ45 connectors and P-series circular connectors. Connectors with a push-pull locking mechanism are also known as push-pull connectors.

[0003] Push-pull connectors have locking lugs near their insertion ends, which are designed to engage recesses in a complementary socket. When inserted, these locking lugs engage the socket recesses and lock the connector in place. In this inserted and locked state, the connector is secured against being pulled out of the socket in the opposite direction.

[0004] To decouple the connectors from the socket, a movable, e.g., spring-loaded, release mechanism on the connector can be pulled against the insertion direction so that the release mechanism presses in the locking tabs, moving them out of the recesses in the socket. The unlocked connector can then be pulled out of the socket, e.g., using the same pulling motion.

[0005] Some push-pull connectors have a problem: due to space constraints, access to the connector's release mechanism can be difficult, as it must be moved in the opposite direction to the insertion direction to unlock the connection. To solve this problem, connectors with a push-pull locking mechanism have been developed that feature a pull strap coupled to the connector's movable release mechanism. This pull strap extends from and / or hangs down from the connector. To disconnect the connector, the pull strap is simply pulled, which transmits the force to the push-pull connector's movable release mechanism, thus releasing the push-pull lock and allowing the connector to be pulled out of the socket.

[0006] These pull straps, also known as lanyards, are attached to the movable release mechanism of the push-pull connector. The existing solutions with movable release mechanisms attached to the pull strap have the disadvantage of requiring relatively large storage space. The pull straps attached to the connector are often stiff wire ropes that protrude from the connector and therefore require significantly more storage space than conventional push-pull connectors without a lanyard.

[0007] Document CN 202 454 807 U discloses a separable connector with a pull cord. The separable connector comprises a connector housing and a puller housing. A return spring can pre-tension the puller housing. A pull cord enables a backward movement of the puller housing to separate the connector.

[0008] Document CN205595 596U also discloses a separable connector with a pulling device attached to a hinged clamp.

[0009] The invention is therefore based on the objective of enabling a tension band relief for the push-pull locking mechanism of a connector, which has a reduced space requirement, at least in stock.

[0010] This problem is solved by the subject matter of the independent claims. Preferred embodiments are the subject matter of the dependent claims.

[0011] One aspect concerns a pull-cord coupling for a connector with a push-pull locking mechanism, which includes a pull cord and a coupling clamp. The pull cord is attached to the coupling clamp at least at one point and / or can be attached to it. The coupling clamp is positively and / or frictionally attached to an outer contour of the connector and / or can be attached to it.

[0012] The coupling clamp is designed as a hinged clamp with at least one first pivot arm and one second pivot arm, wherein the two pivot arms are pivotable relative to each other about a pivot axis between an open clamp position and a closed clamp position. The pull strap is attached to the pivot axis at a first end of the strap in such a way that the two pivot arms are pivotable about the first end of the strap; and / or the pull strap is attached and / or attachable at a second end of the strap in a second crimp sleeve, wherein this second crimp sleeve is configured such that, for closing the hinged clamp in the closed clamp position, it is attached and / or attachable together with the second end of the strap in a first closing opening at a first closing end of the first pivot arm and simultaneously in a second closing opening at a second closing end of the second pivot arm.

[0013] The pull-cord coupling is designed and configured for attachment to the connector. More precisely, the pull-cord coupling is designed and intended for attachment to the outer contour of the connector. This outer contour can be the outer contour of the connector's movable release component. The connector's movable release component is precisely the component that, relative to the rest of the connector, is moved, for example, against the insertion direction, to release the push-pull locking mechanism.

[0014] The pull cord coupling can either already be attached to the outer contour of the connector or be designed without a connector, i.e., as a component and / or kit initially separate from the connector, which can be subsequently attached to the outer contour.

[0015] The pull-cord coupling comprises at least the pull cord and the coupling clamp. The pull cord is attached to, and / or attachable to, at least one mounting point of the coupling clamp. Preferably, the pull cord is already attached at least to one mounting point and thus firmly connected to the coupling clamp. The pull-cord coupling can be designed as a substantially integrated component, which may optionally comprise several component elements, such as the pull cord and the coupling clamp.

[0016] The pull strap can be attached to the coupling clamp at two ends, forming a loop between the ends. This loop can be pulled to release the push-pull lock. In an unassembled, pre-assembled state, the pull strap may already be attached to the coupling clamp at one point, but not yet at a second. When mounted to the connector, the pull strap can be attached to the coupling clamp at two points. In this configuration, it can form the loop described above for easy pulling and release of the push-pull lock.

[0017] The pull cord can, for example, be designed as a wire rope and / or have a wire rope that has high tensile strength and therefore stability.

[0018] The coupling clamp is positively and / or frictionally attached to the outer contour of the connector and / or can be attached to it. This means that the coupling clamp can be placed on and / or around the outer contour of the connector in such a way that a secure coupling of the coupling clamp to the outer contour is achieved. Preferably, this attachment has at least a positive locking mechanism that acts in an unlocking direction, i.e., usually opposite to the insertion direction of the connector. Furthermore, the coupling clamp can also be coupled to the outer contour by means of a clamping fit and thus attached to it. In one embodiment, there is a positive locking and frictional connection between the coupling clamp and the connector in the mounting position of the pull cord coupling. A material-fit connection is not provided.

[0019] The pull-cord coupling according to the invention enables the retrofitting of a pull cord to an existing connector with a push-pull locking mechanism. The pull-cord coupling can thus be designed as a retrofit kit for installation on conventional push-pull connectors without a pull cord. Furthermore, the pull-cord coupling can allow the coupling of a pull cord to different connector types. For example, a single pull-cord coupling can be designed and provided for coupling to various connector types. In particular, the pull-cord coupling can be retrofitted to existing M-series connector variants with a push-pull locking mechanism. Thus, a complete standard series of connectors, such as the entire P-series of circular connectors, can be equipped with a pull cord using only a small number of additional components.

[0020] In a mounting position, the clamp can at least partially surround the connector. In particular, the clamp can completely enclose the connector along its outer contour, especially from a radially outer direction. Complete enclosure refers to all radial directions approximately perpendicular to the insertion axis and / or insertion direction of the connector, not necessarily around the entire outer contour in the longitudinal direction, i.e., in the insertion direction of the connector.

[0021] The coupling clamp is designed as a hinged clamp with at least one first clamp arm and one second clamp arm. The two clamp arms can pivot relative to each other about a pivot axis between an open and a closed clamp position. The pivoting movement of the two clamp arms can initially be reversible. However, after the coupling clamp is attached to the outer contour of the connector, pivoting of the clamp arms can be blocked. In the open state of the pull-cord coupling, i.e., in the open clamp position, the coupling clamp can be configured to receive the connector. In the closed pull-cord coupling, i.e., when the coupling clamp is in the closed clamp position, the coupling clamp can be attached to the outer contour by a positive and / or force-fit connection.The design of the coupling clamp as a hinged clamp with the two clamp arms that can pivot relative to each other thus enables simple and effective attachment of the coupling clamp to the outer contour of the connector.

[0022] In one embodiment, the coupling clamp is configured such that the outer contour of the connector can be inserted into the coupling clamp arranged in the open clamp position and the coupling clamp can be closed around the inserted outer contour into the closed clamp position, in which it is positively and / or force-fitted to the outer contour of the connector.

[0023] In this design, the clamp arms can be pivoted relative to each other around the pivot axis and thus opened, so that the connector can be positioned with its outer contour between the clamp arms.

[0024] In a further development of the tow coupling with the folding clamp, the tow strap is attached at a first strap end to the pivot axis as a mounting point in such a way that the two pivot arms can pivot around the first strap end. In this case, the first strap end can thus at least partially form the pivot axis. The first strap end is attached at least near the pivot axis, in particular in such a way that the strap end forms an axle pin around which the pivot arms can pivot.

[0025] In a further development of this embodiment, the first end of the strap is secured in a first crimp sleeve, which is arranged in both a first axial passage opening of the first pivot arm and a second axial passage opening of the second pivot arm. The crimp sleeve can be crimped to the first end of the strap. Furthermore, the crimp sleeve is arranged in both the first and second axial passage openings. This allows the first crimp sleeve to align the two axial passage openings. The two axial passage openings of the two pivot arms can each be formed at one of the arm ends facing the pivot axis of the respective pivot arm. Furthermore, the axial passage openings can be formed approximately parallel to the insertion direction in the mounting position. Generally, the pivot axis can also be formed parallel to the insertion direction in the mounting position.The first crimp sleeve can thus form an axle pin around which both the first and second pivot arms can pivot. At least one pivot arm can pivot relative to the first crimp sleeve around the pivot axis. In the crimped position, the crimp sleeve can also be crimped relatively tightly in one of the two through-holes, so that the pivoting movement of the other of the two pivot arms always occurs relative to the crimp sleeve and the other pivot arm.

[0026] In a further development of the pull-cord coupling, the pull cord is attached and / or attachable at a second end in a second crimp sleeve. This second crimp sleeve is configured such that, in the closed position, it is attached and / or attachable, along with the second end of the cord, to a first locking opening at the first locking arm end of the first pivot arm and simultaneously to a second locking opening at the second locking arm end of the second pivot arm. The second end of the cord can be the end opposite the first end. By being attached at both ends, the pull cord forms a loop that can be pulled to release the push-pull locking mechanism. The pivot ends of the pivot arms can be located at the end of the respective pivot arm opposite the pivot axis.In the closed pivot position, the first locking opening can be essentially aligned with the second locking opening. This allows the second crimp sleeve and / or the second strap end to be inserted into the two aligned locking openings in the closed pivot position. The second crimp sleeve and / or the second strap end then closes the clamp by positively interlocking the two locking ends of the two pivot arms. The crimping process can also provide a degree of frictional fastening.

[0027] In general, the second end of the strap can be threaded through the locking ends of the two swivel arms in such a way that the second end of the strap securely fastens the two locking ends together, in particular against opening, i.e., moving the clamp into the open swivel position.

[0028] According to one embodiment, the coupling clamp can be closed around the outer contour of the connector in a fastening position such that it encompasses the outer contour as a self-contained sleeve. In this embodiment, the coupling clamp encloses the outer contour of the connector in all radial directions. The radial directions here are those radial to the mating direction. This design of the coupling clamp as a self-contained sleeve enables a secure fastening of the coupling clamp to the connector. Closing the coupling clamp around the outer contour of the connector allows for both a stable positive-locking connection and a stable friction-locking connection.

[0029] According to one embodiment, the coupling clamp has an inner contour with at least one raised section and at least one recessed section, each of which is complementary to a recessed section and a raised section of the outer contour of the connector. Here, the inner contour of the coupling clamp is complementary to the outer contour of the connector. This complementary design enables an effective positive fit between the coupling clamp and the outer contour of the connector, in particular an effective positive fit against the insertion direction. The raised section and recessed section on the inner contour and / or the outer contour can be provided by a substantially wave-like contour. The troughs and crests of the outer and inner contours can be approximately the same height and width to provide an approximately complementary design.

[0030] According to one embodiment, the inner contour of the coupling clamp is designed to be approximately complementary to a structured and / or grooved and / or corrugated surface on the outer contour of the connector. Connectors with a push-pull locking mechanism typically have a grip with such a structured and / or grooved and / or corrugated surface. This surface can, in particular, be shaped approximately like a sine wave. This structured surface simplifies the creation of a frictional and / or force-fit connection between the operator's fingers and this structured and / or grooved and / or corrugated surface. This simplifies the unlocking of the push-pull locking mechanism and simultaneously indicates to the operator where on the connector the push-pull locking mechanism can be released.The complementary design of the inner contour of the coupling clamp, in turn, enables the provision of at least a positive-locking connection between the coupling clamp and the outer contour of the connector.

[0031] According to one embodiment, the coupling clamp is approximately ring-shaped, at least in a closed mounting position. This ring-shaped design allows for secure attachment to circular connectors, particularly P-series connectors. In this configuration, the inner radius of the coupling clamp in the closed mounting position can approximately correspond to the outer radius of the connector's outer contour. Furthermore, the ring-shaped design enables the clamp to fully enclose the connector's outer contour in the mounting position.

[0032] In one embodiment, the coupling clamp can also be at least partially enclosed with angular edges, particularly as a coupling clamp for an RJ45 connector.

[0033] Generally, the mounting position of the coupling clamp refers to the position in which the coupling clamp of the pull-cord coupling is positively and / or force-fitted to the outer contour of the connector. In this mounting position, the push-pull locking mechanism can be released by pulling on the pull cord.

[0034] According to one embodiment, the coupling clamp is at least partially or completely designed as a zinc die-cast component. Zinc die-cast components are relatively easy to manufacture in a predefined shape at manageable costs while simultaneously offering sufficient stability and / or hardness.

[0035] According to one embodiment, the coupling clamp is formed in two parts, consisting of two clamp components, and can be opened and closed by relative movement of the two clamp components around the outer contour of the connector. The two clamp components can, for example, be designed as clamp arms and / or as half-shells of the coupling clamp, which can be placed around the outer contour of the connector.

[0036] According to one embodiment, the pull-cord coupling is designed as a separate, retrofittable component from the connector. The inner contour of the coupling clamp can be adapted to a structure of the connector's outer contour that is used in multiple connectors, and in particular, can be designed to be complementary to it. This allows the pull-cord coupling to be used for retrofitting a large number of different connectors. For example, the coupling clamp can be approximately ring-shaped and have an inner contour that is adapted to the structured and / or corrugated outer contour of the grip attachment on the outer contour designed for unlocking the push-pull locking mechanism. Retrofitting reduces the overall storage space required for connectors with a push-pull locking mechanism. This allows the push-pull connectors to be stored next to or separately from the pull-cord couplings.As a result, they are less bulky overall as storage components and require less storage space.

[0037] One aspect concerns a connector with a push-pull locking mechanism and an outer contour to which a pull-cord coupling according to one of the preceding claims is positively and / or force-fit. The pull-cord coupling is attached to the connector in such a way that the push-pull locking mechanism can be unlocked by pulling on the pull cord. This can be achieved by attaching the pull-cord coupling to the movable release component of the connector.

[0038] One aspect concerns a method for attaching a pull-cord coupling to an outer contour of a connector with a push-pull locking mechanism, comprising the following steps: Providing a pull strap for the pull strap coupling; providing a coupling clamp designed as a hinged clamp with at least one first pivot arm and a second pivot arm for the pull strap coupling; attaching the pull strap to at least one attachment point on the coupling clamp; and positively and / or force-fit attachment of the coupling clamp to the outer contour of the connector by pivoting the two pivot arms about a pivot axis from an open clamp position to a closed clamp position, wherein the pull strap is attached at a first end of the strap to the pivot axis as an attachment point in such a way that the two pivot arms can be pivoted about the first end of the strap;and / or - - the pull strap is attached and / or attachable to a second strap end in a second crimp sleeve, and wherein this second crimp sleeve is attached and / or attachable to close the hinged clamp in the closed clamp position together with the second strap end in a first closure opening at a first closure end of the first pivot arm and simultaneously in a second closure opening at a second closure end of the second pivot arm.

[0039] The method can be carried out, in particular, with a pull-cord coupling and / or a connector, according to the aspects described above. Therefore, the descriptions of the pull-cord coupling and the connectors also apply to the method, and vice versa. The method may include further steps, such as closing the coupling clamp around the outer contour of the connector, attaching a first and / or second end of the pull cord to the coupling clamp, and / or crimping at least one end of the cord to the coupling clamp.

[0040] Within the scope of this invention, the terms "essentially" and / or "approximately" may be used to include a deviation of up to 5% from a numerical value following the term, a deviation of up to 5° from a direction following the term and / or from an angle following the term.

[0041] Terms such as above, below, over, under, lateral, etc. refer - unless otherwise specified - to the Earth's reference system in an operating position of the subject matter of the invention.

[0042] The invention is described in more detail below with reference to exemplary embodiments shown in the figures. Here, identical or similar reference numerals may denote identical or similar features of the embodiments. Individual features shown in the figures may be implemented in other exemplary embodiments. The figures show: Fig. 1 a perspective view of a connector with a push-pull locking mechanism and an embodiment of a pull-cord coupling in the operating position; Fig. 2 a perspective view of the connector with push-pull locking mechanism and a separate pull-cord coupling; Fig. 3 a perspective view of the pull-cord coupling with the coupling clamp open; Fig. 4 a perspective view of the pull-cord coupling with the coupling clamp open, into which the connector with push-pull locking mechanism is inserted; Fig. 5A a perspective view of the connector with push-pull locking mechanism, around whose outer contour the coupling clamp of the pull-cord coupling is closed; and Fig. 5B a perspective view of the connector with push-pull locking mechanism and the coupling clamp of the pull-cord coupling attached to it in the operating position.

[0043] Figure 1Figure 1 shows a perspective view of a connector 100 with a push-pull locking mechanism, to which a pull-cord coupling 1 is attached in an operating position. The connector 100 is designed as a circular connector, approximately tubular in shape, with its cylindrical axis oriented approximately in a mating direction S. The connector 100 can be inserted in the mating direction S with its insertion end 140 leading into a non-in Figure 1 shown complementary connectors and / or can be plugged into a complementary socket to form an electrical connection.

[0044] To secure the plug connection, the connector 100 has at least one locking element 130, which protrudes from the connector 100 approximately radially, adjacent to the insertion end 140, acting as a kind of locking lug. The locking element 130 protrudes through an opening in a release element 120, which is approximately cylindrical in shape. The release element 120 can be moved relative to a housing 150 of the connector 100 against a spring force, contrary to the insertion direction S, such that the at least one locking element 130 moves radially inwards. This releases the lock, and the connector 100 can be pulled out of the plug connection contrary to the insertion direction S. This type of locking, securing, and unlocking mechanism is also known as a push-pull locking mechanism.

[0045] The pull-cord coupling 1 is attached to an outer contour of the movable release component 120. The pull-cord coupling 1 comprises, in particular, a coupling clamp 20 and a pull cord 10. The pull cord 10 can, for example, consist of and / or include a wire rope. The pull cord 10 extends from a first cord end 11 to a second cord end 12. The two cord ends 11 and 12 are each attached to the coupling clamp 20, so that a central band 15 of the pull cord 10 forms a loop and / or pull loop. By pulling on the pull cord 10 against the insertion direction S, in particular by pulling on the loop provided by the central band 15, a force is transmitted via the coupling clamp 20 against the insertion direction S to the release component 120, to which the coupling clamp 20 is attached. This allows the push-pull locking mechanism to be unlocked and released by pulling on the pull cord 10.At the same time as the pull, connector 100 can also be pulled out of the plug connection.

[0046] Figure 2 Figure 1 shows the pull-cord coupling 1 and the connector 100 in separate views. The coupling clamp 20 of the pull-cord coupling 1 is closed and approximately ring-shaped. The ring is closed around a central axis, which is arranged parallel to the insertion direction S.

[0047] The coupling clamp 20 has a structured inner contour 22, which is located in the Figure 1The operating position shown is positioned around an outer contour 110 of the connector 100. Preferably, a ribbed and / or wave-shaped structure, which is typical of push-pull connectors, is used as the outer contour 110. In particular, such a structured outer contour 110 is formed on the release component 120, allowing a user to easily grasp the release component 120 and move it against the insertion direction S. The outer contour 110 can be wave-shaped and / or in the form of a sine wave. The outer contour 110 can have waves whose amplitude is arranged radially to the insertion direction S. The length of the waves can be approximately in the insertion direction S.

[0048] The inner contour 22 of the coupling clamp 20 is approximately complementary to the outer contour 110. This means that, in the illustrated embodiment, the inner contour 22 is also wave-shaped. Thus, the inner contour 22 has wave crests and / or wave troughs in the insertion direction S, which are dimensioned such that they can engage in the wave troughs and / or wave crests of the outer contour 110. In the Figure 1 In the shown fastening position, there is at least a positive-locking connection between the coupling clamp 20 and the outer contour 110, and thus the unlocking component 120. Furthermore, a force-locking connection with the outer contour 110 can be formed by clamping the coupling clamp 20.

[0049] The coupling clamp 20, and in particular the entire pull-cord coupling 1, is designed as a retrofit component and can be subsequently coupled to the outer contour 110. Accordingly, the pull-cord coupling 1 is designed as a separate component, separate in particular from the connector 100. However, in the coupled state, the pull-cord coupling 1 does not necessarily have to be detachable from the connector 100. A sufficient means of subsequently attaching the pull-cord coupling to the outer contour 110 is normally adequate.

[0050] Figure 3 Figure 1 shows the pull-cord coupling 1 in an open state. Specifically, the coupling clamp 20 of the pull-cord coupling 1 and the first end of the cord 11 are shown. The second end of the cord 12 is not shown in this unsecured and open state.

[0051] The coupling clamp 20 is designed as a hinged clamp 21. The hinged clamp 21 has a first pivot arm 30 and a second pivot arm 40. The two pivot arms 30 and 40 are pivotable relative to each other about a pivot axis 50, which is indicated by a dashed line. The two pivot arms 30 and 40 are designed approximately as semicircular partial shells, which together form a closed ring when closed. Each of the two pivot arms 30 and 40 is essentially designed as a semi-ring.

[0052] The first pivot arm 30 extends from the pivot axis 50 to a first locking end 33, which faces away from the pivot axis 50. At least one first locking opening 32 is formed at the first locking end 33. In the illustrated embodiment, two spaced-apart first locking openings 32 are arranged at the first locking end 33. The at least one locking opening 32 has a through opening in the insertion direction S through the first locking end 33. The first pivot arm 30 also has at least one first axial opening 31 at the end that is arranged at the pivot axis 50. The first axial opening 31 is located in the Figure 3 The perspective shown is obscured. From the pivot axis 50, the first pivot arm 30 extends along a curved, semicircular path to the first shutter end 33.

[0053] Analogous to the first pivot arm 30, the second pivot arm 40 is also designed. The second pivot arm 40 extends from the pivot axis 50 along a semicircular curve to the second shutter end 43. The second shutter end 43 is formed at the end of the second pivot arm 40 that is spaced away from and / or facing away from the pivot axis 50. At the second shutter end 43, the second pivot arm 40 has at least one second shutter passage opening 42, which completely penetrates the second shutter end 43 in the insertion direction S.

[0054] The two swivel arms 30 and 40 can be designed as identical components and are configured to assemble into a closed ring. Designing them as identical components reduces the total number of different components required for the tension band coupling 1, thereby lowering manufacturing complexity.

[0055] The second pivot arm 40 has at least one second through-hole 41 on the pivot axis. The at least one second through-hole 41 and the at least one first through-hole 31 of the first pivot arm are arranged in a line aligning one behind the other in the insertion direction S such that the first strip end 11 can be threaded through and positioned in all of these through-holes 31 and 41. The first strip end 11 can be crimped in a first crimp sleeve 13. The first crimp sleeve 13 can be arranged parallel to the pivot axis 50. The first strip end 11 and / or the first crimp sleeve 13 form the pivot axis 50 such that the first pivot arm 30 and / or the second pivot arm 40 can pivot about the pivot axis 50.The first strap end 11 and / or the first crimp sleeve 13 is firmly attached inside the axle passage openings 31 and / or 41, so that the first strap end 11 cannot slip out of the axle passage openings 31 and / or 41. This provides a positive and / or force-fit connection of the first tension strap end 11 to the pivot axis 50 of the coupling clamp 20.

[0056] Both the first swivel arm 30 and the second swivel arm 40 have a structured inner contour 22, which is complementary to the outer contour 110 of the unlocking component 120 (see figure). Figure 2 and 4The structuring of the inner contour 22 can continue between the two swivel arms 30, 40, so that the inner contours of the two swivel arms 30, 40 continue and / or complement each other in a closed mounting position. For example, circumferential wave troughs and / or wave crests can result on the inner contour of the coupling clamp 20.

[0057] Figure 4Figure 1 shows a perspective view of how the connector 100, with its outer contour 110, is positioned on the inner contour 22 of the first swivel arm 30. In the open swivel position of the coupling clamp 20, the two locking ends 33 and 43 are spaced far enough apart to allow the connector 100 to be easily inserted into the interior of the coupling clamp 20. To mount the pull cord coupling 1, the second swivel arm 50 can now be folded down around the pivot axis 50 until its inner contour 22 rests on the outer contour 110. In doing so, the second locking end 43 is moved towards the first locking end 33 until all locking through holes 32 and 42 are aligned one behind the other in the insertion direction S. Thus, in the closed pivoted state, all shutter passage openings 32, 42 form a common, continuous shutter passage opening into which the second end of the strap 12 (cf. Figures 1 and 2 ) can be introduced.

[0058] Figure 5A Figure 1 shows such a partially assembled state, in which the second end 12 of the strap is threaded through the locking ends 33 and 43 and crimped with a second crimp sleeve 14. The second end 12 of the pull strap 10 penetrates the locking openings 32 and 42 at the first and second locking ends 33 and 43. This creates a positive fit that holds the coupling clamp 20 in the closed position. As long as the pull strap 10, and in particular the second end 12, is threaded through the locking openings 32 and 42, the coupling clamp 20 cannot be opened without damage. Thus, the coupling clamp 20 is at least positively locked to the outer contour 110 of the connector 100.

[0059] Figure 5BFigure 1 shows the pull-cord coupling 1 in its mounting position. The second end of the cord 12 is retracted into the closure openings 32 and 42 to such an extent that the second crimp sleeve 14 is almost completely drawn into these openings. A thickening at the closed end of the crimp sleeve 14 can prevent and / or block complete penetration of the second crimp sleeve 14 into the closure openings 32 and 42. Furthermore, the second crimp sleeve 14 can be firmly secured in the closure openings 32 and 42 by squeezing and / or crimping. Thus, the pull-cord coupling 1 is shown in the position shown. Figure 5B The mounting position shown is firmly attached to the outer contour 110 of the unlocking component 120.

[0060] The pull-cord coupling 1 enables the retrofitting of existing connectors with a lanyard, i.e., with a pull-cord release. This requires crimping the second end of the cord 12 by the customer and / or a service technician. Reference symbol list

[0061] 1 Pull strap coupling 10 Pull strap 11 First strap end 12 Second strap end 13 First crimp sleeve 14 Second crimp sleeve 15 Center strap 20 Coupling clamp 21 Hinged clamp 22 Inner contour 30 First swivel arm (first clamp arm) 31 First axis through-hole 32 First locking through-hole 33 First locking end 40 Second swivel arm (second clamp arm) 41 Second axis through-hole 42 Second locking through-hole 43 Second locking end 50 Swivel axis 100 Connector (with a push-pull locking mechanism) 110 Outer contour 120 Release component 130 Locking element 140 Plug end 150 Housing

Claims

1. Drawstring coupling (1) for a plug connector (100) having a push / pull locking means, comprising: - a drawstring (10) and - a coupling clip (20); wherein - the drawstring (10) is and / or can be fastened to the coupling clip (20) at least at a fastening point; - the coupling clip (20) is and / or can be fastened in a form-fitting and / or force-fitting manner to an outside contour (110) of the plug connector (100); characterised in that - the coupling clip (20) is configured as a hinged clip (21) having at least one first swivel arm (30) and one second swivel arm (40), and wherein the two swivel arms (30, 40) can be swivelled against one another about a swivel pin (50) between an open clip position and a closed clip position; and wherein - the drawstring (10) is fastened, at a first string end (11), to the swivel pin (50) as a fastening point in such a way that the two swivel arms (30, 40) can be swivelled about the first string end (11); and / or - the drawstring is and / or can be fastened, at a second string end (12), in a second crimp sleeve (14), and wherein said second crimp sleeve (14) is configured in such a way that, for locking the hinged clip (21) in the closed clip position, it is and / or can be fastened, together with the second string end (12), in a first locking through-opening (32) at a first locking end (33) of the first swivel arm (30), and simultaneously in a second locking through-opening (42) at a second locking end (43) of the second swivel arm (40).

2. Drawstring coupling according to claim 1, wherein the hinged clip (20) is configured in such a way that the outside contour (110) of the plug connector (100) can be introduced into the coupling clip (20) arranged in the open clip position, and the coupling clip (20) can be closed around the introduced outside contour (110), into the closed clip position, in which it is fastened in a form-fitting and / or force-fitting manner to the outside contour (110) of the plug connector (100).

3. Drawstring coupling according to either claim 1 or claim 2, wherein the first string end (11) is fastened in a first crimp sleeve (13) which is arranged both in a first axial through-opening (31) of the first swivel arm (30) and in a second axial through-opening (41) of the second swivel arm (40).

4. Drawstring coupling according to any of the preceding claims, wherein the coupling clip (20) can be locked, in a fastening position, around the outside contour (110) of the plug connector (100) in such a way that it encompasses the outside contour (110) as a coherent sleeve.

5. Drawstring coupling according to any of the preceding claims, wherein the coupling clip (20) has an inside contour (22) having at least one elevation and at least one depression, which are each configured in a manner complementary to a depression and an elevation of the outside contour (110) of the plug connector (100).

6. Drawstring coupling according to any of the preceding claims, wherein the coupling clip (20) is configured approximately annularly, at least in a closed fastening position.

7. Drawstring coupling according to any of the preceding claims, wherein the coupling clip (20) is configured as a zinc die-cast component, at least in part or completely.

8. Drawstring coupling according to any of the preceding claims, wherein the coupling clip (20) is formed in two parts, of two clip components, and can be opened and closed by the relative movement of the two clip components relative to one another about the outside contour (110) of the plug connector (100).

9. Drawstring coupling according to any of the preceding claims, wherein the drawstring coupling (1) is configured as a component separate from the plug connector (100) and which can be retrofitted.

10. Plug connector (100) comprising a push / pull locking means and an outside contour (110) to which a drawstring coupling (1) according to any of the preceding claims is fastened in a form-fitting and / or force-fitting manner.

11. Plug connector (100) according to claim 10, wherein an inside contour (22) of the coupling clip (20) is configured approximately complementarily to a structured and / or fluted and / or corrugated surface on the outside contour (110) of the plug connector (100).

12. Method for fastening a drawstring coupling (1) to an outside contour (110) of a plug connector (100) having a push / pull locking means, comprising the steps of: - providing a drawstring (10) of the drawstring coupling (1); - providing a coupling clip (20) of the drawstring coupling (1) that is configured as a hinged clip (21) having at least one first swivel arm (30) and one second swivel arm (40); - fastening the drawstring (10) to at least one fastening point on the coupling clip (20); - fastening the coupling clip (20) to the outside contour (110) of the plug connector (100) in a form-fitting and / or force-fitting manner by swivelling the two swivel arms (30, 40) about a swivel pin (50) from an open clip position into a closed clip position, wherein - the drawstring (10) is fastened at a first string end (11) to the swivel pin (50), as a fastening point, in such a way that the two swivel arms (30, 40) can be swivelled about the first string end (11); and / or - the drawstring is and / or can be fastened at a second string end (12) in a second crimp sleeve (14), and wherein, for locking the hinged clip (21) in the closed clip position, said second crimp sleeve (14) is and / or can be fastened, together with the second string end (12), in a first locking through-opening (32) at a first locking end (33) of the first swivel arm (30), and simultaneously in a second locking through-opening (42) at a second locking end (43) of the second swivel arm (40).

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