EP3893338A1 - Draw string connection, connector and method - Google Patents

Abstract

A drawstring coupling (1) for a connector (100) with a push-pull locking mechanism has a drawstring (10) and a coupling clamp (20). The tension band (10) is fastened and / or can be fastened to the coupling clamp (20) at least in one fastening position. The coupling clamp (20) is fastened and / or can be fastened to an outer contour (110) of the connector (100) in a form-fitting and / or force-fitting manner.

Description

The invention relates to a drawstring coupling for a connector with a push-pull locking mechanism, a connector with a push-pull locking mechanism and a drawstring coupling, and a method for attaching a drawstring coupling to a connector with a push-pull locking mechanism.

Some electrical connectors are equipped with a so-called push-pull lock. A push-pull locking is used in particular for connectors of the RJ45 type and circular connectors of the P series. Connectors with a push-pull locking mechanism are also referred to as push-pull connectors.

In the vicinity of their insertion ends, push-pull connectors have locking lugs which are designed to engage in recesses in a complementary socket. When plugged in, these locking lugs engage in the recesses in the socket and lock the connector in the socket. In this inserted and locked state, the connector is secured against being pulled out against a plug-in direction in the socket.

To decouple the connector from the socket, a movable, for example resilient, unlocking component of the connector can be pulled against the plug-in direction in such a way that the unlocking component presses the locking lugs in such that they are moved out of the recesses in the socket. The unlocked connector can then be pulled out of the socket using the same pulling movement, for example.

With some push-pull connectors, the problem has arisen that, for reasons of space, there may be poor access to the unlocking component of the connector, which has to be moved in the opposite direction to the plug-in direction in order to unlock the connector. To solve this problem, plug-in connectors with a push-pull lock have been developed which have a pull strap coupled to the movable unlocking component of the connector. This drawstring sticks out from the connector and / or hangs down from it. To release the plug connection, the pulling strap can simply be pulled, which transmits the tensile force to the movable unlocking component of the push-pull connector in such a way that the push-pull lock is released and the connector can be pulled out of the socket.

These drawstrings are also referred to as lanyards, which are attached to the movable unlocking component of the push-pull connector. The previously known solutions with the movable unlocking components attached to the drawstring have the disadvantage that they take up a relatively large amount of space in inventory. The drawstrings 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.

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

This object is achieved by the subjects of the independent claims. Preferred embodiments are the subject matter of the dependent claims.

One aspect relates to a drawstring coupling for a connector with a push-pull locking system, which has a drawstring and a coupling clamp. In this case, the tension band is fastened and / or can be fastened at least at one fastening point on the coupling clamp. The coupling clamp is positive and / or non-positive attached and / or attachable to an outer contour of the connector.

The drawstring coupling is designed and configured for attachment to the connector. More precisely, the drawstring coupling is designed and provided for attachment to the outer contour of the connector. The outer contour can be an outer contour of the movable unlocking component of the connector. The movable unlocking component of the connector is precisely the component that is moved relative to the rest of the connector, for example against the plug-in direction, to unlock the push-pull lock, in order to unlock the push-pull lock.

The drawstring coupling can either already be attached to the outer contour of the connector or it can be designed without a connector, i.e. designed as a component and / or kit which is initially separate from the connector and which, for example, can be subsequently attached to the outer contour.

The drawstring coupling has at least the drawstring and the coupling clamp. In this case, the tension band is fastened and / or can be fastened to the at least one fastening point of the coupling clamp. The tension band is preferably already fastened from the outset at least to the one fastening point and is thus firmly connected to the coupling clamp. In this case, the drawstring coupling can be designed as an essentially coherent component which, if necessary, can have several component elements, such as the drawstring and the coupling clamp.

The drawstring can in particular be fastened and / or fastenable to two belt ends with the coupling clamp, so that a middle section and / or middle belt of the drawstring forms a loop between the belt ends, which can be pulled to release the push-pull lock. In an unassembled, pre-assembled state, the tension band can already be attached to the coupling clamp at one attachment point, but not yet at a second Attachment point. In a fastening position assembled on the connector, the tension band can be fastened to the coupling clamp at two fastening points. Here, it can form the loop described above for easy pulling and releasing of the push-pull lock.

The tension band can, for example, be designed as a wire rope and / or have a wire rope which has a high tear strength and thus stability.

The coupling clamp is fastened and / or can be fastened to the outer contour of the connector in a form-fitting and / or force-fitting manner. This means that the coupling clamp can be placed on and / or around the outer contour of the connector in such a way that the coupling clamp is firmly coupled to the outer contour. This fastening preferably has at least one form fit, which acts in an unlocking direction, that is to say usually against the plug-in direction of the connector. Furthermore, the coupling clamp can also be coupled to the outer contour with a press fit and thus attached to it. In one embodiment, there is a form-fitting and frictional connection between the coupling clamp and the plug connector in the fastening position of the tension band coupling. A material connection is not provided.

The drawstring coupling according to the invention enables a subsequent attachment of the drawstring to an already existing and / or existing connector with a push-pull lock. The drawstring coupling can thus be designed as a retrofit set for attachment to conventional push-pull connectors without a drawstring. Furthermore, the pull strap coupling can enable a pull strap to be coupled to different connector types. For example, a single drawstring coupling can be designed and provided for coupling to different connector types. In particular, the drawstring coupling can be retrofitted to the existing variants of connectors with a push-pull lock of the M series. Thus, with a small number of additional components, a complete Standard series of connectors can be equipped with a drawstring, for example the complete P series of circular connectors.

In a fastening position, the coupling clamp can at least partially surround the connector. In particular, the coupling clamp can completely enclose the connector on the outer contour, in particular from a radially outer direction. Here, the complete enclosure relates to all radial directions approximately perpendicular to the plug axis and / or plugging direction of the connector, not necessarily around the entire outer contour in the longitudinal direction, that is, in the plugging direction of the connector.

According to one embodiment, the coupling clamp is designed as a hinged clamp with at least a first clamp arm and a second clamp arm. The two clamp arms can be pivoted relative to one another about a pivot axis between an open clamp position and a closed clamp position. The pivoting movement of the two clamp arms can initially be reversible. However, after the coupling clamp has been attached to the outer contour of the connector, pivoting of the clamp arms can be blocked. In the open state of the drawstring coupling, that is to say in the open clamp position, the coupling clamp can be configured to receive the connector. The closed drawstring coupling, that is to say when the coupling clamp is arranged in the closed clamp position, the coupling clamp can be attached to the outer contour in a form-fitting and / or force-fitting manner. The design of the coupling clamp as a hinged clamp with the two clamp arms which can be pivoted relative to one another thus enables the coupling clamp to be attached simply and effectively to the outer contour of the connector.

In a further development of this embodiment, the coupling clamp is configured in such a way 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 non-positively is attached to the outer contour of the connector. Here, the clamp arms can be pivoted relative to one another about the pivot axis and thus opened to such an extent that the connector with its outer contour can be arranged between the clamp arms.

In a further development of the tension coupling with the hinged clamp, the tension strap is attached to a first strap end on the pivot axis as a fastening point such that the two pivot arms can be pivoted about the first strap end. The first end of the tape can thus at least partially form the pivot axis. The first end of the tape is fastened at least in the vicinity of the pivot axis, in particular fastened to the pivot axis in such a way that the end of the tape forms an axle pin about which the pivot arms can be pivoted.

In a further development of this embodiment, the first strap end is fastened in a first crimp sleeve, which is arranged both in a first axis passage opening of the first pivot arm and in a second axis passage opening of the second pivot arm. The crimp barrel can be crimped to the first end of the tape. Furthermore, the crimp barrel is arranged both in the first and in the second axis passage opening. In this way, the first crimp sleeve can be used to align the two axis through openings. The two axis through openings of the two pivot arms can each be formed on an arm end of the respective pivot arm facing the pivot axis. Furthermore, in the fastening position, the axis through-openings can be formed approximately parallel to the plug-in direction. In general, the pivot axis can also be configured parallel to the plug-in direction in the fastening position. The first crimp sleeve can thus form an axle pin about which both the first pivot arm and the second pivot arm can pivot. At least one swivel arm can be swiveled about the swivel axis relative to the first crimp sleeve. In the crimped position, the crimp sleeve can also be crimped comparatively firmly in one of the two through openings, so that the pivoting movement of the other of the two pivot arms always takes place relative to the crimp sleeve and to the other pivot arm. In a further development of the tension band coupling, the tension band is fastened and / or can be fastened to a second band end in a second crimp sleeve, this second crimp sleeve being configured in such a way that it can be used to close the hinged clamp in the closed clamp position together with the second band end in a first closure passage opening first locking arm end of the first pivot arm and at the same time in a second locking passage opening on a second locking arm end of the second pivot arm and / or is fastened. The second tape end can be an end of the tension tape facing away from the first tape end. By attaching it to its two ends of the strap, the pull strap forms a loop which can be pulled to unlock the push-pull lock. The pivot ends of the pivot arms can be formed on an end of the respective pivot arm facing away from the pivot axis. In the closed pivot position, the first closure passage opening can be aligned substantially in alignment with the second closure passage opening. As a result, in the closed pivot position, the second crimp sleeve and / or the second strap end can be inserted into the two aligned closure through-openings. The second crimp sleeve and / or the second band end thus closes the hinged clamp by securing the two closure ends of the two pivot arms to one another in a form-fitting manner. By crimping, a certain non-positive fastening can also take place.

In general, the second strap end can be threaded through the locking ends of the two swivel arms in such a way that the second strap end secures the two locking ends to one another in a form-fitting manner, in particular against opening, i.e. moving the hinged clamp into the open swivel position.

According to one embodiment, the coupling clamp can be closed around the outer contour of the connector in a fastening position in such a way that it engages around the outer contour as a self-contained cuff. In this embodiment, the coupling clamp encloses the outer contour of the connector in all radial directions. The radial directions are here Directions radial to the mating direction. This design of the coupling clamp as a self-contained cuff enables the coupling clamp to be securely fastened to the connector. Closing the coupling clamp around the outer contour of the connector enables both the formation of a stable form-fitting fastening and a stable force-fitting fastening.

According to one embodiment, the coupling clamp has an inner contour with at least one elevation and at least one depression, which are each designed to be complementary to a depression and an elevation of the outer contour of the connector. Here, the inner contour of the coupling clamp is designed to be complementary to the outer contour of the connector. The complementary design enables an effective form fit between the coupling clamp and the outer contour of the connector, in particular an effective form fit against the plug-in direction. The elevation and depression on the inner contour and / or on the outer contour can be provided by an essentially wave-shaped contour. The wave troughs and wave crests of the outer contour and the inner contour can be designed to be approximately the same height and width in order to provide an approximately complementary configuration.

According to one embodiment, an inner contour of the coupling clamp is designed to be approximately complementary to a structured and / or corrugated and / or corrugated surface on the outer contour of the connector. Connectors with a push-pull lock usually have a handle attachment with such a structured and / or corrugated and / or corrugated surface. The surface can in particular be designed approximately in the form of a sine wave. This surface structured in this way simplifies the production of a frictional and / or non-positive connection between the fingers of an operator and this structured and / or corrugated and / or corrugated surface. This simplifies the unlocking of the push-pull lock and at the same time shows the operator at which point of the connector he can unlock the push-pull lock. The complementary training of the The inner contour of the coupling clamp in turn enables an at least positive connection to be provided between the coupling clamp and the outer contour of the connector.

According to one embodiment, the coupling clamp is approximately ring-shaped, at least in a closed fastening position. The ring-shaped coupling clamp enables a good attachment to circular connectors, in particular to connectors of the P-series. Here, an inner radius of the coupling clamp in the closed fastening position can correspond approximately to the outer radius of the outer contour of the connector. Furthermore, the ring-shaped design enables an enclosed encompassing the outer contour of the connector in the fastening position.

In one embodiment, the coupling clamp can also be at least partially angularly closed, in particular as a coupling clamp for an RJ45 connector.

In general, the fastening position of the coupling clamp denotes that position in which the coupling clamp of the drawstring coupling is fastened to the outer contour of the connector in a form-fitting and / or force-fitting manner. In the fastening position, the push-pull lock can be released by pulling on the pull strap.

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 comparatively easy to manufacture in a predefined target shape at manageable costs with sufficient stability and / or hardness at the same time.

According to one embodiment, the coupling clamp is constructed in two parts from two clamp components and can be opened and closed by moving the two clamp components relative to one another around the outer contour of the connector. The two clamp components can be designed, for example, as clamp arms and / or as half-shells of the coupling clamp, which around the Outer contour of the connector can be placed.

According to one embodiment, the tension band coupling is designed as a component that is separate from the connector and can be retrofitted. Here, the inner contour of the coupling clamp can be adapted to a structuring of the outer contour of the plug connector that is used if possible with a plurality of plug connectors, in particular designed to be complementary thereto. This makes it possible to use the drawstring coupling for retrofitting as many different connectors as possible. For example, the coupling clamp can be approximately ring-shaped and have an inner contour which is adapted to the structured and / or corrugated outer contour of the handle attachment of the outer contour designed for unlocking the push-pull lock. The ability to retrofit reduces the overall storage space required to store the connector with a push-pull lock. In this way, the push-pull connectors can be stored next to or separately from the drawstring couplings. As a result, they are overall less bulky as bearing components and require less storage space.

One aspect relates to a plug connector with a push-pull locking mechanism and an outer contour to which a drawstring coupling according to one of the preceding claims is fastened in a form-fitting and / or force-fitting manner. In this case, the pull strap coupling is attached to the connector in its fastening position in such a way that the push-pull lock can be unlocked by pulling on the pull strap. This can be done in that the drawstring coupling is attached to the movable unlocking component of the connector.

• Bereitstellen eines Zugbands der Zugbandankopplung;
• Bereitstellen einer Koppelschelle der Zugbandankopplung;
• Befestigen des Zugbands an zumindest einer Befestigungsstelle an der Koppelschelle; und
• form- und/oder kraftschlüssiges Befestigen der Koppelschelle an der Außenkontur des Steckverbinders.

One aspect relates to a method for attaching a drawstring coupling to an outer contour of a connector with a push-pull locking system with the following steps:

• Providing a drawstring of the drawstring coupling;
• Providing a coupling clamp of the drawstring coupling;
• Attaching the tension band to at least one attachment point on the coupling clamp; and
• form-fitting and / or force-fitting fastening of the coupling clamp to the outer contour of the connector.

The method can in particular be carried out with a drawstring coupling and / or a plug connector according to the aspects described above. For this reason, the explanations relating to the pull cord coupling and the plug connectors also relate to the method and vice versa. The method can include further steps, such as closing the coupling clamp around the outer contour of the connector, fastening a first and / or second strap end of the tension band to the coupling clamp and / or crimping at least one strap end to the coupling clamp.

In the context of this invention, the terms “substantially” and / or “approximately” can be used to include a deviation of up to 5% from a numerical value following the term, a deviation of up to 5 ° from one to the Direction following the term and / or from an angle following the term.

Terms such as above, below, above, below, lateral, etc. relate - unless otherwise specified - to the reference system of the earth in an operating position of the subject matter of the invention.

Fig. 1

eine perspektivische Ansicht eines Steckverbinders mit einer Push-Pull-Verriegelung mit einer Ausführungsform einer Zugbandankopplung in Betriebsposition;

Fig. 2

eine perspektivische Ansicht des Steckverbinders mit Push-Pull-Verriegelung mit separater Zugbandankopplung;

Fig. 3

eine perspektivische Ansicht der Zugbandankopplung mit geöffneter Koppelschelle;

Fig. 4

eine perspektivische Ansicht der Zugbandankopplung mit geöffneter Koppelschelle, in welche der Steckverbinder mit Push-Pull-Verriegelung eingebracht ist;

Fig. 5A

eine perspektivische Ansicht des Steckverbinders mit Push-Pull-Verriegelung, um dessen Außenkontur die Koppelschelle der Zugbandankopplung geschlossen ist; und

Fig. 5B

eine perspektivische Ansicht des Steckverbinders mit Push-Pull-Verriegelung und daran in Betriebsposition befestigter Koppelschelle der Zugbandankopplung.

The invention is described in more detail below on the basis of exemplary embodiments shown in the figures. Here, the same or similar reference symbols can identify the same or similar features of the embodiments. Individual features shown in the figures can be implemented in other exemplary embodiments. Show it:

Fig. 1

a perspective view of a connector with a push-pull lock with an embodiment of a drawstring coupling in the operating position;

Fig. 2

a perspective view of the connector with Push-pull locking with separate drawstring coupling;

Fig. 3

a perspective view of the drawstring coupling with the coupling clamp open;

Fig. 4

a perspective view of the drawstring coupling with the coupling clamp open, into which the connector with push-pull locking is inserted;

Figure 5A

a perspective view of the connector with push-pull locking, around the outer contour of which the coupling clamp of the drawstring coupling is closed; and

Figure 5B

a perspective view of the connector with push-pull locking and coupling clamp of the tension band coupling fastened to it in the operating position.

Figure 1 shows a perspective view of a connector 100 with a push-pull lock, to which a drawstring coupling 1 is attached in an operating position. The plug connector 100 is designed as a round plug connector which is roughly tubular and the cylinder axis of which is oriented roughly in a plug-in direction S. The plug connector 100 can in the plug-in direction S with its plug-in end 140 first in a not in Figure 1 shown complementary plug connector and / or plugged into a complementary socket in order to enter into an electrical plug connection.

In order to secure the plug connection, the plug connector 100 has at least one locking element 130, which protrudes approximately radially from the plug connector 100 as a type of latching lug adjacent to the plug-in end 140. The locking element 130 protrudes through an opening of an unlocking component 120, which is formed approximately in the shape of a cylinder jacket. The unlocking component 120 can be displaced against a spring force counter to the plug-in direction S relative to a housing 150 of the plug connector 100 in such a way that the at least one locking element 130 moves radially inward. The lock is released and the plug connector 100 can be inserted counter to the plug-in direction S. be pulled out of the connector. This type of locking, securing and unlocking is also known as a push-pull locking.

The drawstring coupling 1 is attached to an outer contour of the movable unlocking component 120. The drawstring coupling 1 has, in particular, a coupling clamp 20 and a drawstring 10. The tension band 10 can for example consist of a wire rope and / or have such a cable. The tension strap 10 extends from a first strap end 11 to a second strap end 12. The two strap ends 11 and 12 are each attached to the coupling clamp 20 so that a central strap 15 of the tension strap 10 forms a loop and / or a pull loop. By pulling on the tension band 10 against the insertion direction S, in particular by pulling the loop provided by the central band 15, a force is transmitted via the coupling clamp 20 against the insertion direction S to the unlocking component 120, to which the coupling clamp 20 is attached. As a result, the push-pull lock can be unlocked and released by means of this pull on the tension band 10. At the same time as the pull, the plug connector 100 can also be pulled out of the plug connection.

Figure 2 shows the drawstring coupling 1 and the plug connector 100 in a view separated from one another. The coupling clamp 20 of the drawstring coupling 1 is closed and is approximately annular in shape. The ring is closed around a central axis which is arranged parallel to the insertion direction S.

The coupling clamp 20 has a structured inner contour 22, which in the in Figure 1 The operating position shown is placed around an outer contour 110 of the connector 100. A corrugated and / or wave-shaped structuring, which push-pull Steek connectors usually have, is preferably used as the outer contour 110. In particular, such a structured outer contour 110 is formed on the unlocking component 120, on which a user can easily grasp the unlocking component 120 and move it counter to the plug-in direction S. The outer contour 110 can in particular be embodied in a wave-shaped manner and / or in the form of a sine wave. The outer contour 110 can be waves have, the amplitude of which are arranged in a radial direction radially to the plug-in direction S. The length of the shafts can be arranged approximately in the insertion direction S.

The inner contour 22 of the coupling clamp 20 is approximately complementary to the outer contour 110. This means that in the exemplary embodiment shown, the inner contour 22 is also designed to be wave-shaped. The inner contour 22 thus 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 in Figure 1 There is thus an at least positive connection between the coupling clamp 20 and the outer contour 110 and thus the unlocking component 120. By clamping the coupling clamp 20, a non-positive connection with the outer contour 110 can also be formed.

The coupling clamp 20 and in particular the entire tension band coupling 1 is designed as a retrofit component and can be coupled to the outer contour 110 at a later date. Accordingly, the drawstring coupling 1 is designed as a separate component, separate in particular from the connector 100. In the coupled state, however, the drawstring coupling 1 does not necessarily have to be detachable from the plug connector 100. A sufficient possibility of subsequently attaching the drawstring coupling to the outer contour 110 is normally sufficient.

Figure 3 shows the drawstring coupling 1 in an open state. In particular, the coupling clamp 20 of the tension belt coupling 1 and the first belt end 11 are shown. The second tape end 12 is not shown in this unsecured and open state.

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 dash-dotted with respect to one marked pivot axis 50 pivotable relative to each other. The two pivot arms 30 and 40 are designed approximately as semicircular part-shells, which together form a self-contained ring in the closed state. Each of the two pivot arms 30 and 40 are essentially designed as a half-ring.

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 closure through-opening 32 is formed on the first closure end 33. In the exemplary embodiment shown, two first closure through-openings 32, which are spaced apart from one another, are even arranged on the first closure end 33. The at least one closure through-opening 32 has a continuous opening in the insertion direction S through the first closure end 33. At the end of the first pivot arm 30, which is arranged on the pivot axis 50, the first pivot arm 30 also has at least one first axis through opening 31. The first axle through hole 31 is in FIG Figure 3 shown perspective obscured. The first pivot arm 30 extends from the pivot axis 50 along a curved, semicircular path to the first closure end 33.

The second swivel arm 40 is also designed analogously to the first swivel arm 30. The second pivot arm 40 extends from the pivot axis 50 along a semicircular curvature to the second locking end 43. The second locking end 43 is formed at the end of the second pivot arm 40 which is spaced from the pivot axis 50 and / or facing away. At the second locking end 43, the second pivot arm 40 has at least one second locking through-opening 42 which penetrates the second locking end 43 completely in the plug-in direction S.

The two pivot arms 30 and 40 can be designed as identical components and are configured to be assembled to form a closed ring. The training as identical components reduces the total for the Drawstring coupling 1 requires the number of different components and thereby reduces the complexity in manufacture.

On the pivot axis, the second pivot arm 40 has at least one second axis through opening 41. The at least one second axle passage opening 41 and the at least one first axle passage opening 31 of the first pivot arm are arranged in alignment one behind the other in the insertion direction S such that the first tape end 11 can be threaded through all of these axle passage openings 31 and 41 and can be arranged therein. The first tape 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 strap end 11 and / or the first crimp sleeve 13 form the pivot axis 50 in such a way that the first pivot arm 30 and / or the second pivot arm 40 can be pivoted 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 does not slip out of the axle passage openings 31 and / or 41. A form-fitting and / or force-fitting connection of the first tension band end 11 to the pivot axis 50 of the coupling clamp 20 is thus provided.

Both the first pivot arm 30 and the second pivot arm 40 have a structured inner contour 22 which is complementary to the outer contour 110 of the unlocking component 120 (cf. Figure 2 and 4th ) is trained. The structuring of the inner contour 22 can continue between the two pivot arms 30, 40, so that the inner contours of the two pivot arms 30, 40 continue and / or complement one another in a closed fastening position. For example, circumferential wave troughs and / or wave crests can result on the inner contour of the coupling clamp 20.

Figure 4 shows in a perspective view how the connector 100 is placed with its outer contour 110 on the inner contour 22 of the first pivot arm 30. In In the opened pivoting position of the coupling clamp 20, the two locking ends 33 and 43 are spaced so far apart that the connector 100 can easily be introduced into the interior of the coupling clamp 20. To assemble the tie rod coupling 1, the second pivot arm 50 can now be folded down around the pivot axis 50 until it rests with its inner contour 22 on the outer contour 110. The second locking end 43 is moved towards the first locking end 33 until all of the locking through-holes 32 and 42 are aligned one behind the other in the insertion direction S. Thus, in the closed pivoted state, all of the closure through-openings 32, 42 form a common, continuous closure through-opening into which the second strap end 12 (cf. Figures 1 and 2 ) can be introduced.

Figure 5A shows such a partially assembled state in which the second tape end 12 is threaded through the closure ends 33 and 43 and is crimped with a second crimp sleeve 14. The second strap end 12 of the tension strap 10 penetrates the closure through-openings 32, 42 at the first and second closure ends 33 and 43. This creates a form fit that holds the coupling clamp 20 in the closed state. As long as the tension strap 10, in particular the second strap end 12, is threaded through the closure passage openings 32 and 42, the coupling clamp 20 can no longer be unfolded without being destroyed. The coupling clamp 20 is thus fastened to the outer contour 110 of the plug connector 100 at least in a form-fitting manner.

Figure 5B shows the drawstring coupling 1 in its fastening position. The second band end 12 is pulled back into the closure through-openings 32 and 42 to such an extent that the second crimp sleeve 14 is almost completely drawn into the closure through-openings 32 and 42. A thickening at the closed end of the crimp barrel 14 can prevent and / or block complete penetration of the second crimp barrel 14 into the closure through-openings 32 and 42. Furthermore, the second crimping sleeve 14 can be firmly attached in the closure through-openings 32 and 42 by squeezing and / or crimping. Accordingly, the drawstring coupling 1 is in the in Figure 5B Fastening position shown firmly attached to the outer contour 110 of the unlocking component 120.

The drawstring coupling 1 enables existing connectors to be retrofitted with a lanyard, that is to say with a drawstring release. For this purpose, the second strip end 12 can be crimped by the customer and / or a service person.

List of reference symbols

1

Drawstring coupling

10

Drawstring

11

first end of tape

12th

second end of tape

13th

first crimp barrel

14th

second crimp barrel

15th

Middle band

20th

Coupling clamp

21

Clip

22nd

Inner contour

30th

first swivel arm

31

first axle passage opening

32

first closure passage opening

33

first closure end

40

second swivel arm

41

second axle passage opening

42

second closure passage opening

43

second closure end

50

Swivel axis

100

Connector (with a push-pull interlock)

110

Outer contour

120

Unlocking component

130

Locking element

140

Stuck end

150

casing

Claims (15)

Drawstring coupling (1) for a connector (100) with a push-pull lock, comprising: - a drawstring (10) and - A coupling clamp (20);
whereby - The tension band (10) is fastened and / or can be fastened to at least one fastening point on the coupling clamp (20), and - The coupling clamp (20) is fastened and / or can be fastened in a form-fitting and / or force-fitting manner to an outer contour (110) of the connector (100). Drawstring coupling according to claim 1, wherein the coupling clamp (20) is designed as a hinged clamp (21) with at least a first clamp arm (30) and a second clamp arm (40), and the two clamp arms (30, 40) about a pivot axis (50) ) are mutually pivotable between an open clamp position and a closed clamp position. Tension band coupling according to claim 2, wherein the coupling clamp (20) is configured in such a way that the outer contour (110) of the connector (100) can be inserted into the coupling clamp (20) arranged in the open clamp position and the coupling clamp (20) around the inserted outer contour ( 110) can be closed into the closed clamp position, in which it is attached to the outer contour (110) of the connector (100) in a form-fitting and / or force-fitting manner. Drawstring coupling according to claim 2 or 3, wherein the drawstring (10) is attached to a first strap end (11) on the pivot axis (50) as a fastening point so that the two pivot arms (30, 40) can be pivoted about the first strap end (11) . Drawstring coupling according to claim 4, wherein the first end of the strap (11) is fastened in a first crimp sleeve (13) which is inserted both in a first through-axis opening (31) of the first pivot arm (30) and in a second through-axis opening (41) of the second pivot arm ( 40) is arranged. Tension band coupling according to one of claims 2 to 5, wherein the tension band is attached and / or attachable to a second band end (12) in a second crimp sleeve (14), and this second crimp sleeve (14) is configured in such a way that it is used to close the Hinged clamp (21) in the closed clamp position together with the second strap end (12) in a first locking through opening (32) on a first locking end (33) of the first pivot arm (30) and at the same time in a second locking through opening (42) at a second locking end (43) ) of the second pivot arm (40) is attached and / or attachable. Drawstring coupling according to one of the preceding claims, wherein the coupling clamp (20) can be closed around the outer contour (110) of the connector (100) in a fastening position in such a way that it encompasses the outer contour (110) as a self-contained cuff. Tension band coupling according to one of the preceding claims, wherein the coupling clamp (20) has an inner contour (22) with at least one elevation and at least one recess, which are each complementary to a recess and an elevation of the outer contour (110) of the connector (100). Drawstring coupling according to one of the preceding claims, wherein an inner contour (22) of the coupling clamp (20) is approximately complementary to a structured and / or corrugated and / or corrugated surface on the outer contour (110) of the connector (100). Drawstring coupling according to one of the preceding claims, wherein the coupling clamp (20) at least in a closed fastening position in is approximately annular. Tension band coupling according to one of the preceding claims, wherein the coupling clamp (20) is at least partially or completely designed as a zinc die-cast component. Tension band coupling according to one of the preceding claims, wherein the coupling clamp (20) is formed in two parts from two clamp components and can be opened and closed by moving the two clamp components relative to one another around the outer contour (110) of the connector (100). Drawstring coupling according to one of the preceding claims, wherein the drawstring coupling (1) is designed as a component that is separate from the connector (100) and can be retrofitted. Plug connector (100) with a push-pull lock and an outer contour (110), to which a tension band coupling (1) according to one of the preceding claims is fastened in a form-fitting and / or force-fitting manner. Method for attaching a drawstring coupling (1) to an outer contour of a connector (100) with a push-pull lock with the following steps: - Providing a drawstring (10) of the drawstring coupling (1); - Provision of a coupling clamp (20) of the drawstring coupling (1); - Fastening the tension band (10) to at least one fastening point on the coupling clamp (20); and - Form-fitting and / or force-fitting fastening of the coupling clamp (20) to the outer contour (110) of the connector (100).

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