Strand lock

Abstract

A chain lock comprises a lock body with a first locking part and a second locking part, a combination locking mechanism aligned along a lock axis, and a chain bolt, wherein a first chain end is formed by a bolt that can be selectively locked or released from the lock body. The first locking part has a bolt insertion opening into which the bolt can be inserted. The combination locking mechanism comprises rotatable code rings and a pre-tensioned bolt, wherein the bolt can be forced into an unlocked position by inserting the bolt into the lock body and by removing the bolt from the lock body, in which the bolt releases a path of movement for the bolt, provided a code is set on the code rings.

Description

[0001] The invention relates to a chain lock with a lock body comprising a first locking part, a second locking part and a combination locking mechanism aligned along a lock axis, and with a chain shackle extending from a first chain end to a second chain end, wherein the first chain end is formed by a clamp that can be selectively locked to the lock body or released from the lock body and wherein the second chain end is permanently attached to the second locking part.

[0002] Such a cable lock can, in particular, allow a closed loop to be formed by locking the clamp and thus the first end of the cable to the lock body, thereby securely connecting two objects. Therefore, such a cable lock can be used, for example, as a bicycle lock to connect a section of the bicycle frame to a fixed object, such as a bicycle rack, by means of the closed loop, so that the bicycle can be secured to the rack after the clamp is locked. Alternatively, it can be designed, for example, to guide the cable shackle between two spokes of a wheel and around a section of the bicycle frame in such a way that the loop formed by the cable lock blocks the rotation of the wheel and thus secures the bicycle against unauthorized riding.A strand bracket can be, for example, a rope or chain bracket.

[0003] Traditionally, in such chain locks with a combination locking mechanism, the bolt, which can be optionally inserted into the lock body, is inserted along the lock axis and locked there by means of the combination locking mechanism. However, this requires an undesirably complex design for the bolt, as it must possess the structures necessary to interact with the combination locking mechanism to ensure reliable locking. In this respect, the bolt in conventional chain locks essentially functions itself as a bolt of the combination locking mechanism, which can optionally be locked against movement relative to the lock body.Furthermore, structures formed on the hinge pin may be more exposed to external influences or other stresses when the hinge pin is removed from the lock body, which may result in damage or wear to the structures on the hinge pin. This may also impair the reliability of the locking mechanism.

[0004] Therefore, one objective of the invention is to create a chain lock that enables reliable locking with simplified design of the clamp and convenient handling.

[0005] This problem is solved by a chain lock having the features of claim 1.

[0006] In this chain lock, the first locking part has a bolt insertion opening through which the bolts can be inserted into the lock body along an insertion direction oriented transversely, and in particular perpendicularly, to the lock axis. The combination locking mechanism has several code rings rotatable around the lock axis for setting a numerical code, as well as a bolt pre-tensioned into a locking position along the lock axis, in particular in the direction of the first locking part, wherein the bolt has a locking notch into which the bolt engages in the locking position when the bolt is inserted into the lock body.The bolt is furthermore released to move against the preload into an unlocked position if a numerical code corresponding to a key secret is set on the code rings, whereby the bolt in the unlocked position allows the bolt to move into or out of the lock body. Conversely, the bolt is locked against movement into the unlocked position if a numerical code not corresponding to the key secret is set on the code rings. Furthermore, with a key secret set, the bolt can be forced from the locked position into the unlocked position by inserting the bolt, detached from the lock body, into the lock body and by removing the bolt, once inserted into the lock body.

[0007] Because the first locking element has a bolt insertion opening through which the bolt can be inserted transversely and, in particular, perpendicularly to the lock axis into the lock body, the bolt—unlike in conventional chain locks—no longer needs to be inserted along the lock axis. This makes it possible to arrange a bolt within the lock body that is movable along the lock axis, and thus, in particular, along the greatest extent of the lock body between a locked and an unlocked position. This bolt can then be used to selectively block or release the bolt for removal from the lock body when moving transversely and, in particular, perpendicularly to the lock axis.The bolt can therefore – as is known from other types of padlocks – be simply designed with a locking notch into which the bolt can engage in the locked position, thus reliably securing the bolt against removal from the lock body. However, the bolt does not need to have any other locking structures in order to function as a bolt that can be optionally inserted into the lock body and interact with components of the combination locking mechanism and, for example, the code rings (or coupling rings coupled to them).

[0008] The bolt inserted into the lock body is thus reliably secured against detachment from the lock body by the bolt, which is in the locked position and locked in that position. This is because the bolt, by engaging in its locking notch, blocks the bolt from moving out of the lock body. However, moving the bolt into the unlocked position allows the bolt to move freely, enabling insertion into or removal from the lock body. Therefore, the bolt inserted into the lock body can be released from the lock body, particularly by moving the bolt into the unlocked position.

[0009] Furthermore, to enable convenient operation of the chain lock, the bolt, when the key code is set, can be moved from the locked position to the unlocked position by the pin, against the preload. This allows the pin to effectively force the bolt out of its own path of movement into the unlocked position, enabling it to be inserted into or removed from the lock body. Because of this interaction between the pin and the bolt, it is therefore unnecessary to provide an additional actuating element, such as a slider or knob accessible on the outside of the lock body, to move the bolt against the preload into the unlocked position.Rather, it is simply a matter of setting the locking mechanism, after which the hinge pin can be moved relative to the lock body in order to be inserted into or removed from the lock body.

[0010] Furthermore, the preload of the bolt into the locked position can allow the bolt to return directly to the locked position and engage in the locking notch when the bolt pin is fully inserted into the lock body and the locking notch is aligned with the bolt's axis. Additionally, the bolt's preload can be selected such that the weight of the bolt pin and / or the shackle is insufficient to force the bolt into the unlocked position against the preload, so that the bolt can hold the bolt pin, fully inserted into the lock body, against unintentional removal from the lock body, even when the combination lock is set. By subsequently changing the combination code, the bolt pin can then be locked to the lock body and secured against deliberate removal.

[0011] The locking notch can be formed circumferentially on the bolt, allowing the bolt to be inserted into the bolt insertion opening and locked to the lock body in any rotational position relative to the insertion direction. Alternatively, the locking notch can also be designed as a local recess on the bolt, requiring the bolt to be inserted into the lock body in a predetermined rotational position to enable locking.

[0012] In general, a chain lock can be designed, for example, as a rope lock or a chain lock. The shackle of a rope lock can be formed by a wire rope, while the shackle of a chain lock can be a chain comprising several links.

[0013] Furthermore, the shackle of the chain lock can be particularly flexible and adjustable to an orientation in which the shackle extends from the first end of the chain to the second end along a straight connecting line. The first end of the chain can be rotatable relative to the second end of the chain and the lock body about such a connecting line.

[0014] Further embodiments are explained in the dependent claims, the description and with reference to the drawings.

[0015] In some embodiments, the bolt and the latch may have interacting chamfers for insertion and / or removal of the bolt, whereby the latch can be forced into the unlocked position by the interaction of the chamfers. In particular, the interacting chamfers may be curved, although a flat chamfer design is also possible in principle.

[0016] By having cooperating chamfers on the bolt and the latch, a force exerted by the bolt during insertion along the insertion direction or removal against the insertion direction can be redirected to force the latch into the unlocked position transversely and, in particular, perpendicularly to the insertion direction, against the preload. Such chamfers can, for example, be designed as flat surfaces inclined to the insertion direction and the lock axis, or alternatively, curved chamfers can be provided. The force required to retract the latch may be higher with curved chamfers compared to flat ones, but conversely, this can result in a more reliable retention of the bolt in the lock body against unintentional release when the lock is engaged.

[0017] In general, the chamfers can be designed in such a way that the chamfered (possibly curved) surfaces of both the hinge and the bolt increasingly move away from the lock axis when viewed along the lock axis in the direction of the unlocking position.

[0018] In some embodiments, the bolt may have an engagement section which, in the locked position, engages in the locking notch of the bolt. Furthermore, with respect to the insertion direction, the bolt may have a first chamfer on an upper side (facing the bolt insertion opening) and a second chamfer on a lower side opposite the upper side, wherein, in the locked position, the second chamfer faces a removal chamfer of the bolt's locking notch, and wherein, by the interaction of the removal chamfer with the second chamfer, the bolt can be retracted against the preload when the bolt is removed from the lock body.Furthermore, the bolt may have an insertion chamfer at a bolt end that can be inserted into the lock body, and the bolt may be able to be pushed back against the preload by the interaction of the insertion chamfer with the first chamfer when the bolt is inserted into the lock body.

[0019] In particular, in such embodiments the locking notch can also be limited by the removal chamfer and a receiving chamfer opposite the removal chamfer, wherein the removal chamfer can run parallel to the second chamfer and the receiving chamfer can run parallel to the first chamfer when the bolt is inserted into the lock body and the bolt is in the locking position.

[0020] In such embodiments, the bolt, pre-tensioned to the locking position, can thus be contacted by the insertion chamfer formed at the end of the bolt during insertion of the bolt into the lock body. The interaction of the insertion chamfer with the first chamfer allows for a deflection of the force exerted by the bolt along the insertion direction onto the bolt. Once the bolt is fully inserted into the lock body and the locking notch, viewed along the lock axis, is aligned with the bolt, the bolt can snap back into the locking position and engage in the locking notch. The second chamfer then faces the removal chamfer, which serves as a boundary for the locking notch, and in particular, can bear against the removal chamfer.Provided that the locking secret is set on the code rings, when the bolt is pulled along the insertion direction, the force exerted on the bolt can be redirected by the interaction of the removal chamfer with the second chamfer, and the bolt can be pushed back into the unlocking position to allow the bolt to be removed from the lock body.

[0021] Furthermore, the locking notch can be limited by the removal chamfer on one side and the aforementioned receiving chamfer on the other, and therefore shaped in such a way that the engagement section of the bolt, with its first and second chamfers, can engage in the locking notch with virtually no play in the locked position, in order to limit and / or prevent any deflection of the bolt relative to the bolt. Particularly in the case of a chain lock used as a bicycle lock or otherwise as a mobile lock, this can prevent any noise generated during transport of the chain lock due to such relative movements between the bolt and the bolt.

[0022] In some embodiments, the first locking part may have a bearing sleeve which extends along the lock axis in the direction of the second locking part and on which the code rings are mounted.

[0023] For example, the first closure element and the bearing sleeve can be integrally formed as a single piece. In this context, an integrally formed closure element is understood to be a part originally formed as a single, materially bonded component, which can be manufactured, for example, by casting or injection molding. An integrally formed closure element thus differs in particular from closure elements that are originally assembled from two or more parts whose individual components are joined by a detachable or permanent connection, such as by welding or bolting.

[0024] However, it is also possible that the first locking part and the bearing sleeve are initially manufactured as two separate parts, but are subsequently joined together by a joining process, for example by welding, pressing, or screwing. In any case, even in such embodiments, it is ensured that the first locking part already incorporates the bearing sleeve, i.e., that the bearing sleeve is connected to further sections of the first locking part, when the code rings are placed onto the bearing sleeve during the assembly of the chain lock.

[0025] Since the first locking part incorporates the bearing sleeve, the bearing sleeve is thus provided on the locking part that also has the bolt insertion opening. Because the code rings are mounted on the bearing sleeve when the multi-point lock is assembled, the code rings must be placed onto the bearing sleeve during assembly, after which the first locking part must be connected to the second locking part to form a closed lock body. Consequently, in the assembled state, the code rings can be arranged between a section of the first locking part that has the bolt insertion opening and the second locking part, wherein the section of the first locking part and the second locking part can extend radially with respect to the lock axis, in particular such that the code rings mounted on the bearing sleeve are fixed axially with respect to the lock axis.

[0026] Since the first locking part in the embodiments under discussion has the bearing sleeve, the aforementioned connection between the first locking part and the second locking part can be made at one end of the first locking part facing away from the bolt insertion opening relative to the lock axis. If the bearing sleeve were arranged in the opposite direction on the second locking part, the bearing sleeve would bridge the gap to the first locking part with the bolt insertion opening, so that the connection between the two locking parts would have to be made in the vicinity of the bolt insertion opening. However, in the direction of the bolt insertion opening, the bolt must extend axially relative to the lock axis beyond the bearing sleeve in order to engage in the bolt insertion opening and the locking notch.Securing the two locking parts in such an arrangement of the bearing sleeve (on the second locking part, and thus unlike the embodiments described here) by a fastener passing through the first locking part and the bearing sleeve therefore necessarily requires that the fastener also passes through the bolt, so that a corresponding recess must be formed in the bolt. However, such a recess results in an undesirable weakening of the bolt's material, which can impair the resistance of the chain lock to forced entry attempts.Conversely, limiting this material weakening by using the smallest possible recess on the bolt also limits the size and, in particular, the diameter of any fastener used to attach the two locking parts to each other, thus restricting the stability of the attachment of the two locking parts to each other and, in turn, the security of the chain lock against break-in attempts.

[0027] By positioning the bearing sleeve on the first locking component, the fastening of the two locking components can be located away from the bolt insertion opening and, therefore, particularly with respect to the lock axis, behind the bolt when viewed from the bolt insertion opening. This means that any fastening means used to connect the locking components to each other does not interfere with the bolt's movement and therefore does not need to pass through the bolt. Consequently, the bolt does not require a recess for a fastening means to pass through; instead, only the bearing sleeve and the second locking component can have suitable structures, particularly openings for a fastening means, to enable the connection of the two locking components.Since the connection of the two locking parts does not weaken the bolt or restrict its dimensions, the openings mentioned above can be made larger compared to a reversed arrangement of the bearing sleeve. This allows for the use of a larger and more robust fastening element, such as a fastening pin, to secure the two locking parts together. Overall, the aforementioned arrangement of the bearing sleeve on the first locking part, or the integration of the bearing sleeve into the first locking part, allows for a more stable connection between the two locking parts and a more robust design of the bolt compared to a reversed arrangement.

[0028] In some embodiments, the bolt can be guided axially within the bearing sleeve with respect to the lock axis. In particular, in such embodiments, the bearing sleeve can surround the bolt at least to a large extent (especially apart from a slot for the passage of locking projections formed on the bolt, as explained in more detail below) in order to prevent deflection of the bolt relative to the lock axis and to guide the bolt along the lock axis. In particular, the bolt can be inserted axially into the bearing sleeve during the assembly of the multi-point locking system.

[0029] In some embodiments, the bearing sleeve may have two bearing sleeve mounting openings at one end section facing away from the bolt insertion opening, aligned perpendicular to the lock axis and in line with each other, and the second locking part may have at least one locking part mounting opening. Furthermore, the first locking part may be connected to the second locking part by a fastening pin passing through the locking part mounting opening and the two bearing sleeve mounting openings.

[0030] In such embodiments, the fastening of the two locking parts to one another can thus be carried out as far as possible from the bolt insertion opening by first guiding the fastening pin through the locking part fastening opening and then through the two bearing sleeve fastening openings formed on the end section of the bearing sleeve. The fastening pin can therefore be positioned particularly far from the bolt, so that the movement of the bolt between the locking and unlocking positions, on the one hand, and the fastening of the two locking parts, on the other hand, can be implemented spatially separately, without the fastening pin having to pass through any movement path of the bolt and, in particular, through the bolt itself.As explained, this makes it possible to use a robustly designed fastening pin with appropriate extension to fasten the locking parts together, without having to accept any weakening of the material of the bolt.

[0031] Therefore, in some embodiments, the bearing sleeve mounting openings can be located behind the bolt, viewed from the bolt insertion opening along the lock axis.

[0032] In some embodiments, the second locking element may have two mutually aligned locking element mounting openings into which the mounting pin can engage. Alternatively, the second locking element may have one locking element mounting opening, and opposite this single mounting opening may be a receptacle for the mounting pin, facing into an interior of the second locking element, in order to support the mounting pin at one end opposite the locking element mounting opening.

[0033] In some embodiments, the bearing sleeve may have two fastening sections projecting towards the second closure part, on which the bearing sleeve fastening openings are formed.

[0034] For example, in such embodiments, a substantially tubular bearing sleeve can have two mounting sections projecting towards the second locking part, which serve to fasten the two locking parts together. In particular, in such embodiments, the bolt can be mounted in and / or surrounded by a tubular section of the bearing sleeve facing the bolt insertion opening relative to the lock axis and the mounting sections, so that the mounting sections can extend beyond the bolt inserted into the bearing sleeve towards the second locking part, enabling the locking parts to be fastened together behind the bolt. A gap between the mounting openings and the bolt can also be used, in particular, for attaching a compression spring to pre-tension the bolt into the locked position.

[0035] In some embodiments, the bolt may have a guide slot extending along the lock axis, and the bearing sleeve may have a bolt guide opening, whereby movement of the bolt relative to the bearing sleeve may be limited by a guide pin engaging in the guide slot through the bolt guide opening.

[0036] In particular, the engagement of the guide pin in the guide slot prevents the bolt from being forced beyond the locked position due to preload. This is because, in such a position, the interaction between the bolt and the pin during insertion of the pin into the lock body could be disrupted. However, due to the design of the bearing sleeve on the first locking component, the guide pin serves only to guide the bolt and does not need to be used to connect the two locking components. Therefore, the guide pin has no security relevance with regard to securing the lock against forced entry attempts.Therefore, the guide pin and guide slot can be small or narrow to achieve the required guidance of the bolt without having to accept a large removal of material from the bolt and a corresponding weakening of the bolt.

[0037] In some embodiments, the code rings can be rotationally fixed to their respective coupling rings, the coupling rings having a locking surface with a release recess. The bolt can have locking projections associated with the respective coupling rings, the release recesses of all coupling rings being aligned with the associated locking projections when the key code is set, so that the bolt can be moved into the unlocked position against the preload relative to the coupling rings. However, when the key code is not set, the release recess of at least one coupling ring may not be aligned with the associated locking projection, so that the bolt can be locked against movement against the preload into the unlocked position by the associated locking projection abutting the locking surface of the at least one coupling ring.In such embodiments, the coupling rings can also be mounted radially inside the lock axis directly on the bearing sleeve, and the code rings can be mounted radially outside on the coupling rings.

[0038] To allow the code rings and their coupled coupling rings to rotate for setting or adjusting the key secret, the locking surfaces of the coupling rings can be axially offset from the locking projections with respect to the lock axis when the bolt is in the locked position. The preload of the bolt into the locked position can thus also ensure that the code rings are always rotatable when the bolt is in the lock body and locking or unlocking is required.

[0039] In some embodiments, the bearing sleeve may have a slot extending along the lock axis through which the locking lugs of the bolt engage. In particular, the bearing sleeve may have a tubular section in which the bolt is axially guided, with the aforementioned slot being formed in this tubular section so that the locking lugs of the bolt can protrude from the bearing sleeve and engage with the coupling rings mounted on the bearing sleeve.

[0040] In some embodiments, the coupling rings and the code rings can be engaged in a rotationally fixed manner by means of cooperating coupling projections and recesses, wherein the coupling rings can be biased along the lock axis, particularly against the bolt's bias, into this rotationally fixed engagement with the code rings. The chain lock can further comprise a key-secret-changing device designed to force the coupling rings out of engagement with the code rings against their bias into a key-secret-changing position, in which the code rings are rotatable relative to the coupling rings for changing the key secret.

[0041] In particular, the coupling rings can be axially movable relative to the lock axis against the preload relative to the code rings by the key secret changing device. The coupling rings can also have sleeve-shaped bearing sections without coupling protrusions and / or coupling recesses to support the code rings in the key secret changing position. Specifically, the coupling rings can have the coupling protrusions and the code rings the coupling recesses.

[0042] Because the code rings are rotatable relative to the coupling rings in the key secret change position, a changed key secret can be set after a rotation of the code rings relative to the coupling rings and a return of the coupling rings to the rotationally fixed coupling to the code rings due to the preload.

[0043] Furthermore, in some embodiments, the coupling rings can only be moved into the key-secret-changing position when the key secret is set, and are otherwise locked against movement into the key-secret-changing position by the bolt. For example, the release recesses of the coupling rings can be guided axially over the locking projections of the bolt during movement into the key-secret-changing position, so that if the key secret is not set, a locking surface of at least one coupling ring striking a locking projection can prevent the coupling rings from moving into the key-secret-changing position.

[0044] In some embodiments, the locking surfaces of the coupling rings may also have a respective rotation lock recess, and the bearing sleeve may have respective rotation lock projections associated with the coupling rings. In the key code change position, the rotation lock projections engage in the rotation lock recesses and secure the coupling rings against rotation about the lock axis. In particular, such engagement prevents the release recesses of the coupling rings from rotating relative to the locking projections of the bolt when the coupling rings are in the key code change position, thus ensuring that the coupling rings subsequently return to the rotationally fixed coupling with the code rings and that, after this return, the changed key code is actually set.

[0045] Furthermore, in such embodiments, the turnstile recesses may be narrower than the release recesses, and / or the locking projections of the bolt may not be axially guided through the turnstile recesses. Therefore, even in such embodiments, the key secret must be set on the code rings, and the release recesses of the coupling rings must be aligned with the locking projections of the bolt in order to move the bolt into the unlocked position. It is insufficient for one of the turnstile recesses of the coupling rings to be aligned with the locking projections of the bolt to allow axial movement of the bolt relative to the coupling rings.

[0046] Generally, the key secret changing mechanism can be operated manually and / or with a suitable tool, such as a screwdriver, particularly on the outside of the lock body. Furthermore, the key secret changing mechanism can, for example, be rotatable.

[0047] In some embodiments, the key code changing device may have an eccentric that can be rotated about an axis of rotation by actuating the device, whereby the coupling rings can be moved into the key code changing position by rotating the eccentric. By rotating such an eccentric, the coupling rings can therefore be axially retracted, particularly along the lock axis, against the aforementioned preload, in order to release the rotationally fixed coupling with the code rings. Actuating the key code changing device to move the coupling rings into the key code changing position may therefore, in particular, involve rotating the eccentric by approximately or exactly 90° in order to utilize the full eccentricity of the eccentric as much as possible.

[0048] In some embodiments, the axis of rotation of the eccentric can be aligned perpendicular to the lock axis. Furthermore, in some embodiments, the axis of rotation can be aligned parallel to the insertion direction.

[0049] In some embodiments, the eccentric can engage a connecting element which rests axially with respect to the lock axis on a coupling ring facing the second locking part.

[0050] In particular, such a connecting element can bridge a gap between the bolt, which interacts with the code rings, and the eccentric. For example, the connecting element can also be mounted on the aforementioned bearing sleeve, and can furthermore surround a spring that biases the bolt into the locking position. Therefore, in embodiments where, in addition to the code rings, a connecting element is also mounted axially adjacent to the code rings on the bearing sleeve, the bearing sleeve can extend axially towards the second locking part, over a coupling ring facing away from the bolt insertion opening, and beyond the bolt, in order to fasten the two locking parts to each other at a distance from the bolt.

[0051] In some embodiments, the key secret changing device may have a first eccentric and a second eccentric which are rotatable by actuating the key secret changing device, wherein the first eccentric and the second eccentric can interact with the coupling rings at points of attack offset from each other.

[0052] In particular, the first and second eccentrics can be arranged opposite to each other with respect to the aforementioned axis of rotation of at least one eccentric, about which both the first and second eccentrics can be rotatable. This allows the two eccentrics to interact with the coupling rings at points of application offset from each other along the axis of rotation, and in particular to engage with the aforementioned connecting element. A design with two eccentrics can, in particular, make it possible to achieve stable guidance of the coupling rings and to avoid any tilting moments relative to the lock axis when the key secret changing device is actuated, by applying forces at at least two points of application, thus transmitting a uniform force distribution against the preload to the coupling rings.

[0053] In some embodiments, the key secret changing device can be arranged on the second locking part. In particular, the second locking part can have an access opening on its outer side through which the key secret changing device can be accessed for external operation.

[0054] The locking mechanism can also be arranged opposite the bolt insertion opening, so that the locking of the bolt on the one hand and the transfer of the coupling rings into the locking mechanism changing position on the other hand can again be implemented spatially separately from each other, without having to create a possibility for adjusting the locking mechanism on the bolt itself.

[0055] In some embodiments, the key-secret-changing device can extend through an interior space of the second locking part perpendicular to the lock axis, and the bolt can be pre-tensioned into the locked position by a spring, which may be supported by the key-secret-changing device. Therefore, in such embodiments, the key-secret-changing device can also be arranged behind the bolt, viewed from the bolt insertion opening along the lock axis in the direction of the second locking part, so that the bolt's path of movement can be kept clear of other components of the master key lock.

[0056] In some embodiments, the bearing sleeve may have mounting sections projecting towards the second locking part, on which two bearing sleeve mounting openings, aligned perpendicular to the lock axis and in alignment with each other, are formed for attaching the bearing sleeve to the second locking part, with the key secret changing device being arranged between the mounting sections. Furthermore, the key secret changing device may, in particular, overlap the mounting sections.

[0057] For example, it may be provided that the secret-changing device overlaps the two protruding mounting sections of the bearing sleeve with the aforementioned eccentrics, so that the secret-changing device can be held and fixed to the bearing sleeve by the overlapping of the mounting sections and the arrangement between the mounting sections.

[0058] In some embodiments, the first locking part can be attached to the second locking part by a fastening pin that passes through the bearing sleeve mounting openings, wherein the fastening pin, viewed from the bolt insertion opening along the lock axis, can be arranged behind the key-secret-changing device. In particular, the fastening pin can engage behind the key-secret-changing device and / or the key-secret-changing device can be supported, especially axially with respect to the lock axis, at an end facing away from the bolt insertion opening by the fastening pin.

[0059] The bearing sleeve mounting openings and the mounting pin can, in particular, be the components already mentioned above for fastening the two locking parts to each other.

[0060] By positioning the fixing pin axially behind the key-secrecy changing device, starting from the first locking element, the fixing pin can effectively close the bearing sleeve at one end opposite the bolt insertion opening, thus axially securing the components located within the bearing sleeve. In particular, the fixing pin can therefore secure the bolt, a spring for pre-tensioning the bolt, and the key-secrecy changing device within the bearing sleeve.

[0061] In some embodiments, the second locking part may have a coupling opening at a coupling end axial to the lock axis, into which the second strand end is inserted, the second strand end being able to have an eyelet. The second locking part may also have a strand fastening opening, and the second strand end may be fastened to the second locking part by a strand fastening pin that passes through the strand fastening opening and the eyelet. In particular, the strand fastening pin may be inserted into the strand fastening opening perpendicular to the lock axis.

[0062] Furthermore, in some embodiments, the strand fastening opening can be located along the lock axis behind the aforementioned locking part fastening opening, viewed from the first locking part. Alternatively or additionally, in embodiments that include both the fastening pin and the strand fastening pin, the aforementioned fastening pin and the strand fastening pin can be aligned perpendicular to each other.

[0063] In some embodiments, the chain bracket can be designed as a chain bracket with several chain links or as a rope bracket, in particular as a wire rope bracket.

[0064] The invention is explained below by way of example using a specific embodiment with reference to the drawings. They show:

[0065] Fig. 1 shows a perspective view of a chain lock with a chain shackle, showing a first chain end that can be optionally detached from a lock body of the chain lock or locked to the lock body by a combination locking mechanism, and a second chain end of the chain shackle permanently attached to the lock body, whereas intermediate shackle sections are not shown. Fig. 2 shows an exploded view with components of the chain lock. Figs. 3A and 3B are exploded views with a selection of components of the chain lock. Fig. 4 shows a perspective view of a first locking part of the lock body with a bolt insertion opening into which a bolt formed on the first chain end can be inserted, and with a bearing sleeve for storing code rings of the combination locking mechanism.5. A perspective view of the bolt and the latch to illustrate the interaction of the bolt and the latch to push the latch back from a locked position to an unlocked position; Fig. 6A and 6B are respective representations of the combination locking mechanism of the multi-point lock to illustrate the movement of coupling rings of the combination locking mechanism into a key secret change position, in which a key secret to be set on the code rings of the combination locking mechanism can be changed; and Fig. 7 is a view of a coupling ring and a code ring that can be coupled to it to illustrate their interaction.

[0066] Fig. 1 Figure 11 shows a chain lock 11 with a lock body 13 and a chain shackle 21, which is exemplified as a chain shackle with several chain links 107. However, in Fig. 1 Only one end link 107 at each end of a first strand 23 and a second strand 25 of the strand bracket 21 is shown, whereas intermediate chain links are not shown. The chain link forming the second strand end 25 is permanently attached to a second locking part 17 of the lock body 13, whereas, as explained in more detail below, a clamp 29 is formed on the first strand end 23, which can be selectively inserted along an insertion direction E into a clamp insertion opening 29 of a first locking part 15 of the lock body 13 and locked to the lock body 13, or released from the lock body 13 and removed from the clamp insertion opening 29 (see also Fig. 2 , 4 und 5 ).

[0067] Between the first locking part 15 and the second locking part 17, several code rings 31 of a combination locking mechanism 19 are arranged, rotatable about a lock axis S. A numerical code Z can be set on these rings. As explained in more detail below, by setting a numerical code Z corresponding to a predetermined key secret, the bolt 29 inserted into the lock body 13 can be released from the lock body 13 in the opposite direction E to the insertion direction perpendicular to the lock axis S. Conversely, by setting a numerical code Z that does not correspond to the key secret, the bolt 29 inserted into the lock body 13 can be locked to the lock body 13.

[0068] Furthermore, it shows Fig. 1 It is already shown that a locking part fastening opening 55 is formed on the second locking part 17, into which a fastening pin 57 is inserted. As will be explained in more detail below, this fastening pin 57 serves to reliably connect the first locking part 15 and the second locking part 17. In addition, an access opening 111 is formed on the second locking part 17, through which a key secret changing device 85, which will also be explained in more detail below, is accessible for operation.

[0069] The function and construction of the chain lock 11 are explained in particular by means of the exploded view of the Fig. 2 evident.

[0070] How Fig. 2 In particular, the first locking part 15 has a bearing sleeve 49 extending along the lock axis S towards the second locking part 17, on which the code rings 31 are rotatably mounted about the lock axis S. Furthermore, the bearing sleeve 49 serves to guide a bolt 33 of the combination locking mechanism 19, which is pre-tensioned towards a locking position V, axially with respect to the lock axis S (see Figure 1). Fig. 6A The bolt 33 is biased into the locking position V by means of a spring 81 supported on the aforementioned key-secret-changing device 87 (see also Fig. 6B ).

[0071] A circumferential locking notch 35 is formed on the clamp 29, which can be optionally inserted into the clamp insertion opening 27 and forms the first strand end 23 of the strand bracket 21. The bolt 33 is designed to engage in the locking notch 35 with an engagement section 37 in the locking position V. Therefore, if the bolt 33 is locked in the locking position V, the clamp 29 inserted into the lock body 13 can also be blocked by the bolt 33 against removal from the clamp insertion opening 27.

[0072] As already mentioned, the bolt 33 can be locked in the locking position V by setting a numerical code Z on the code rings 31, which differs from a predetermined secret code. As shown from Fig. 2 As can be seen, the code rings 31 are coupled to respective coupling rings 67, which are directly supported by the bearing sleeve 49. The bolt 33 also has locking projections 73 assigned to each coupling ring 67, which extend through a slot 79 formed in the bearing sleeve 79 in order to interact with the coupling rings 67 (see also Fig. 3A ).

[0073] Fig. 7 Figure 1 shows that the coupling rings 67 each have coupling projections 77 which engage in respective coupling recesses 75 formed on the associated code rings 31 in order to couple the code rings 31 to the coupling rings 67 in a rotationally fixed manner. In addition, a radially internal and circumferential locking surface 69 is provided on the coupling rings 67 with respect to the lock axis S, which, however, has a release recess 71 and a rotation lock recess 91. By adjusting the key combination on the code rings 31, all release recesses 71 can be aligned with the respective associated locking projection 73 of the bolt 33, so that the bolt 33 can be forced along the lock axis S relative to the coupling rings 67 and against the preload exerted by the spring 81 into an unlocked position R, in which the bolt 33 does not engage in the locking notch 35 of the block 29 inserted into the lock body 13 (see also Fig. 6A ).

[0074] If, however, the locking mechanism is not set on the code rings 31, at least the release recess 71 of one of the coupling rings 67 is not aligned with the associated locking projection 73 of the bolt 33, so that the bolt 33, when moved against the preload, strikes the locking surface 69 of the coupling ring 67 and is thus blocked against such movement. Furthermore, the rotary lock recesses 91 are narrower than the release recesses 71, so that even rotating a rotary lock recess 91 in alignment with a locking projection 73 does not allow the bolt 33 to be moved out of the locked position V against the preload, since the locking projection 73 cannot pass through the rotary lock recess 91.

[0075] Provided that the key secret is set on the code rings 31, the bolt 33 can, in principle, be forced out of the locked position V along the lock axis S, contrary to the preload exerted by the spring 81. In order to avoid having to provide an additional actuating element for the bolt 33, but rather to allow the pin 29 to be inserted directly into or removed from the lock body 13 when the key secret is set, a first chamfer 39 and a second chamfer 41 are formed on the engagement section 37 of the bolt 33, and the pin 29 has an insertion chamfer 45 and a removal chamfer 43.By the interaction of the chamfers 39, 41, 43 and 45, it can be achieved that the bolt 33, with the locking secret set, can be forced back into the unlocking position E against the preload by inserting the block 29 into the block insertion opening 27 or by removing the block 29 from the block insertion opening 27, in order to release a movement path of the block 29.

[0076] In particular, when the bolt 29 is inserted into the bolt insertion opening 27, the bolt 33, which is in the locking position V, can be retracted by the interaction of the insertion chamfer 45 of the bolt 29 with the first chamfer 39 of the bolt 33. This interaction redirects a force exerted by the bolt 29 along the insertion direction E. When the bolt 29 is inserted, the engagement section 37 of the bolt 33 engages in the locking notch 35, which is defined by the removal chamfer 43 and a receiving chamfer 47 opposite the removal chamfer 43. However, when the bolt 29 is removed from the lock body 13, the engagement section 37 of the bolt 33 can be retracted against the preload by the interaction of the removal chamfer 43 with the second chamfer 41 of the bolt 33.Therefore, only the locking code needs to be set on the code rings 31, whereupon the clamp 29 and thus the first strand end 23 can be inserted directly into or removed from the clamp insertion opening 27 (see also . Fig. 5 with regard to the chamfers provided on the hinge and the bolt).

[0077] In particular, the chamfers 39, 41, 43, 45 and 47 are curved in the illustrated embodiment, although alternatively, for example, a flat design of the chamfers 39, 41, 43, 45 and 47 could also be provided.

[0078] To securely connect the first locking part 15 with the second locking part 17, two bearing sleeve mounting openings 53 are provided on the mounting sections 59 of the bearing sleeve 49 of the first locking part 15, which extend away from the bolt insertion opening 27 and are aligned with each other perpendicular to the lock axis S. These bearing sleeve mounting openings 53 are located, in particular, on one of the end sections 51 of the bearing sleeve 49 facing away from the bolt insertion opening 27. The second locking part 17 also has the aforementioned locking part mounting opening 55, which is aligned perpendicular to the lock axis S. This allows the first locking part 15 and the second locking part 17 to be fastened together by passing the fastening pin 57 through the locking part mounting opening 55 and the bearing sleeve mounting openings 53.For example, in an interior 97 of the second closure part 17 opposite the closure part fastening opening 55, a receptacle (not shown) for the fastening pin 57 can be provided in order to be able to stably store the fastening pin 57.

[0079] Since the bearing sleeve 49 is part of the first locking part 15 – and not of the second locking part 17 – and since the bearing sleeve mounting openings 53 are formed on the end section 51 of the bearing sleeve 49 facing away from the clamp insertion opening 27, the two locking parts 15 and 17 can be mounted to each other at a distance from the clamp insertion opening 27. As can also be seen in particular from the Fig. 4 and 6BAs can be seen, the fastening of the locking parts 15 and 17 to one another is achieved in such a way that the fastening pin 57 is arranged outside the movement path of the bolt 33 and does not need to pass through the bolt 33. Rather, the fastening pin 57 is arranged behind the bolt 33, viewed from the bolt insertion opening 27 along the lock axis S. This allows the fastening pin 57 to be designed to be stable and with a comparatively large diameter, since the fastening pin 57 does not need to pass through the bolt 33 and no recess needs to be provided in the bolt 33 for the passage of the fastening pin 57, as would be the case if the bearing sleeve 49 were arranged on the second locking part 17.

[0080] Furthermore, a bolt guide opening 65 is provided on the bearing sleeve 49, and the bolt 33 has a guide slot 61, wherein a guide pin 63 is guided through the bolt guide opening 65 into the guide slot 61 in order to limit axial movement of the bolt 33 with respect to the lock axis S. In particular, this engagement of the guide pin 63 prevents the bolt 33 from moving beyond the locking position V, thus ensuring the interaction of the first chamfer 39 with the insertion chamfer 45 of the bolt 29 when the bolt 29 is removed.Since the guide pin 63 does not need to connect the two locking parts 15 and 17 and therefore has no security relevance with regard to securing the chain lock 11 against break-in attempts, the guide pin 63 can be designed to be compact and narrow, so that the formation of the similarly narrow guide slot 61 on the bolt 33 only involves a slight removal of material from the bolt 33, without impairing the stability of the bolt 33.

[0081] The Fig. 2 Figures 3A and 3B further show that the second locking part 17 has a coupling opening 101 at one coupling end 99 opposite the clamp insertion opening 27, into which the chain link 107 forming the second strand end 25 can be inserted. In addition, a strand fastening pin 109 is provided, which can be passed through a strand fastening opening 105 formed on the second locking part 107 in order to engage in an eyelet 103 formed by the chain link 107 and thus the second strand end 25, thereby permanently fastening the chain link 107 to the second locking part 17. The strand fastening pin 109 is aligned perpendicular to the lock axis S and the fastening pin 57 and is furthermore arranged behind the fastening pin 57 when viewed from the clamp insertion opening 27 along the lock axis S.

[0082] Furthermore, in order to be able to change the lock secret at will, a lock secret changing device 85, accessible from the outside of the lock body 13, is provided. As can be seen in particular from the Fig. 6A und 6B As can be seen, the key secret changing device 85 has two eccentrics 87 and 89 rotatable about a pivot axis D oriented perpendicular to the lock axis S. The eccentrics 87 and 89 engage at respective points of attack offset along the pivot axis D on a connecting element 95, which in turn bears against a coupling ring 67 facing the key secret changing device 85. Fig. 6B As shown, by actuating the key secret changing device 85 and rotating the eccentrics 87 and 89, the connecting element 95 and above it the coupling rings 67, which are pre-tensioned by a spring 83 in a rotationally fixed coupling with the code rings 31, can be moved into a key secret changing position P. In this key secret changing position P, the coupling rings 67 are moved axially relative to the associated code rings 31 and the coupling protrusions 67 disengage from the coupling recesses 75, so that the code rings 31 can be rotated relative to the coupling rings 35 and the key secret can be changed.Furthermore, on the bearing sleeve 49, respective rotation lock projections 93 are formed, each assigned to the coupling rings 67, wherein the already mentioned rotation lock recesses 91 formed on the coupling rings 67 engage with the rotation lock projections 93 in the key secret change position P in order to prevent the coupling rings 67 from rotating (see in particular . Fig. 3B ).

[0083] Fig. 6B further shows that the spring 81 for pre-tensioning the bolt 33 is supported on the key secret changing device 85, which extends through the interior 97 of the second locking part 17. In addition, it shows in particular Fig. 4 The key secret changing device 85 is arranged in front of the fastening pin 57 when viewed from the bolt insertion opening 27 along the lock axis S and is engaged behind the fastening pin 57 along the lock axis S. Furthermore, the eccentrics 87 and 89 overlap the fastening sections 53 of the bearing sleeve 49, so that the key secret changing device 85 is completely held on the bearing sleeve 49. Bezugszeichenliste

[0084] 11 Strand lock 13 Lock body 15 First locking part 17 Second locking part 19 Combination locking mechanism 21 Strand bolt 23 First strand end 25 Second strand end 27 Clamp insertion opening 29 Clamp 31 Code ring 33 Bolt 35 Locking notch 37 Engagement section 39 First chamfer 41 Second chamfer 43 Removal chamfer 45 Insertion chamfer 47 Receiving chamfer 49 Bearing sleeve 51 End section of bearing sleeve 53 Bearing sleeve mounting opening 55 Locking part mounting opening 57 Mounting pin 59 Mounting section 61 Guide slot 63 Guide pin 65 Bolt guide opening 67 Coupling ring 69 Locking surface 71 Release recess 73 Locking protrusion 75Coupling recess 77Coupling rise 79Slot 81Spring 83Spring 85Lock secret change device 87Eccentric 89Eccentric 91Turns lock recess 93Turns lock rise 95Connecting element 97Interior 99Coupling end 101Coupling opening 103Eyelet 105Strand attachment opening 107Chain link 109Strand attachment pin 111Access opening DPivot axisEInsertion direction PSecret key change position RUnlock position SLock axis VLocking position ZNumber code

Claims

1. Chain lock (11), comprising: - a lock body (13) having a first locking part (15) and a second locking part (17), - a combination locking mechanism (19) aligned along a lock axis (S); and - a chain bolt (21) extending from a first chain end (23) to a second chain end (25), wherein the first chain end (23) is formed by a bolt (29) that can be selectively locked to or released from the lock body (13), and wherein the second chain end (25) is permanently attached to the second locking part (17), wherein the first locking part (15) has a bolt insertion opening (27) through which the bolt (29) can be inserted into the lock body (13) along an insertion direction (E) oriented transversely, in particular perpendicularly, to the lock axis (S).wherein the combination locking mechanism (19) has several code rings (31) rotatable about the lock axis (S) for setting a numerical code (Z) and a bolt (33) biased along the lock axis (S) into a locking position (V), and wherein the bolt (29) has a locking notch (35) into which the bolt (33) engages in the locking position (V) when the bolt (29) is inserted into the lock body (13), wherein the bolt (33) is released for movement against the bias into an unlocking position (R) when a numerical code (Z) corresponding to a key secret is set on the code rings (31), wherein the bolt (33) in the unlocking position (R) allows movement of the bolt (29) for insertion into or removal from the lock body (13), wherein the bolt (33) is prevented from moving into the The unlocking position (R) is locked when a numeric code (Z) is set on the code rings (31),which does not correspond to the locking secrecy, and wherein the bolt (33) can be forced from the locking position (V) to the unlocking position (R) by inserting the pin (29) released from the lock body (13) into the lock body (13) and by removing the pin (29) inserted into the lock body (13).

2. Chain lock (11) according to claim 1, wherein the clamp (29) and the bolt (33) have chamfers (39, 41, 43, 45) that interact during insertion and / or removal, wherein the bolt (33) can be forced into the unlocking position (R) by the interaction of the chamfers (39, 41, 43, 45), wherein the chamfers (39, 41, 43, 45) are in particular curved.

3. A chain lock (11) according to claim 1 or 2, wherein the bolt (33) has an engagement section (37) which, in the locked position (V), engages in the locking notch (35) of the bolt (29), wherein the bolt (33) has, with respect to the insertion direction (E), a first chamfer (39) on an upper side and a second chamfer (41) on a lower side opposite the upper side, wherein the second chamfer (41) faces a removal chamfer (43) of the locking notch (35) of the bolt (29) in the locked position (V), wherein the bolt (33) can be retracted against the preload by the interaction of the removal chamfer (43) with the second chamfer (41) when the bolt (29) is removed from the lock body (13), and wherein the bolt (29) is attached to the lock body at a (13) insertable end of the clamp (29) has an insertion chamfer (45),wherein the bolt (33) can be retracted against the preload by the interaction of the insertion chamfer (45) with the first chamfer (39) when the block (29) is inserted into the lock body (13), wherein the locking notch (35) is limited in particular by the removal chamfer (43) and a receiving chamfer (47) opposite the removal chamfer (43), wherein the removal chamfer (43) runs parallel to the second chamfer (41) and the receiving chamfer (47) runs parallel to the first chamfer (39) when the block (29) is inserted into the lock body (13) and the bolt (33) is in the locking position (V).

4. Chain lock (11) according to one of the preceding claims, wherein the first locking part (15) has a bearing sleeve (49) which extends along the lock axis (S) in the direction of the second locking part (17) and on which the code rings (31) are mounted, in particular wherein the bolt (33) has a guide slot (61) extending along the lock axis (S) and wherein the bearing sleeve (49) has a bolt guide opening (33), wherein a movement of the bolt (33) relative to the bearing sleeve (49) is limited by a guide pin (65) engaging through the bolt guide opening (33) into the guide slot (61).

5. Chain lock (11) according to claim 4, wherein the bolt (33) is guided axially within the bearing sleeve (49) with respect to the lock axis (S).

6. Chain lock (11) according to claim 4 or 5, wherein the bearing sleeve (49) has two bearing sleeve mounting openings (53) aligned perpendicular to the lock axis (S) and in alignment with each other at one end section (51) facing away from the bolt insertion opening (27), and wherein the second locking part (17) has at least one locking part mounting opening (55), wherein the first locking part (15) is connected to the second locking part (17) by a fastening pin (57) passing through the locking part mounting opening (55) and the two bearing sleeve mounting openings (53), wherein the bearing sleeve (49) in particular has two fastening sections (59) projecting towards the second locking part (17), on which the bearing sleeve mounting openings (53) are formed.

7. Chain lock (11) according to claim 6, wherein the bearing sleeve fastening openings (53) are arranged behind the bolt (33) viewed from the bolt insertion opening (27) along the lock axis (S).

8. Chain lock (11) according to one of claims 4 to 7, wherein the code rings (31) are rotationally fixed to respective coupling rings (67), wherein the coupling rings (67) have a respective locking surface (69) with a release recess (71), wherein the bolt (33) has respective locking projections (73) associated with the coupling rings (67), wherein the release recesses (71) of all coupling rings (67) are aligned with the associated locking projections (73) when the key combination is set, so that the bolt (33) can be moved into the unlocked position (R) against the preload relative to the coupling rings (67), and wherein, when the key combination is not set, the release recess (71) of at least one coupling ring (67) is not aligned with the associated locking projection (73).so that the bolt (33) is locked against movement against the preload into the unlocked position (R) by the associated locking lug (73) striking the locking surface (69) of the at least one coupling ring (67), wherein the bearing sleeve (49) in particular has a slot (79) extending along the lock axis (S) through which the locking lugs (73) of the bolt (33) extend.

9. Chain lock (11) according to claim 8, wherein the coupling rings (67) and the code rings (31) are in rotationally fixed engagement with each other by means of cooperating coupling projections (77) and coupling recesses (75), wherein the coupling rings (67) are biased into rotationally fixed engagement with the code rings (31) along the lock axis (S), wherein the chain lock (11) has a key secret changing device (85) which is configured to force the coupling rings (67) out of engagement with the code rings (31) against their bias into a key secret changing position (P) in which the code rings (31) are rotatable relative to the coupling rings (67) for changing the key secret.

10. Chain lock (11) according to claim 9, wherein the locking surfaces (69) of the coupling rings (67) further comprise a rotation lock recess (91) and wherein the bearing sleeve (49) comprises rotation lock projections (93) assigned to the coupling rings (67), wherein the rotation lock projections (93) engage in the rotation lock recesses (91) in the key secret change position (P) and secure the coupling rings (67) against rotation about the lock axis (S), wherein the rotation lock recesses (91) are in particular narrower than the release recesses (71) and / or wherein the locking projections (73) of the bolt (33) are in particular not guided through the rotation lock recesses (91).

11. Chain lock (11) according to claim 9 or 10, wherein the key secret changing device (85) has an eccentric (87, 89) rotatable about a pivot axis (D) by actuating the key secret changing device (85), wherein the coupling rings (67) are movable into the key secret changing position (P) by rotating the eccentric (87, 89), in particular wherein the pivot axis (D) of the eccentric (87, 89) is aligned perpendicular to the lock axis (S); and / or in particular wherein the eccentric (87, 89) engages a connecting element (95) which bears axially with respect to the lock axis (S) against a coupling ring (67) facing the second locking part (17);and / or in particular wherein the key secret changing device (85) has a first eccentric (87, 89) and a second eccentric (87, 89) which are rotatable by actuating the key secret changing device (85), wherein the first eccentric (87, 89) and the second eccentric (87, 89) interact with the coupling rings (67) at offset points of application, wherein the first eccentric (87, 89) and the second eccentric (87, 89) are arranged in particular opposite directions to each other with respect to the axis of rotation (D) of the eccentrics (87, 89).

12. Chain lock (11) according to one of claims 9 to 11, wherein the key secret changing device (85) is arranged on the second locking part (17), in particular wherein the key secret changing device (85) extends through an interior space (97) of the second locking part (17) perpendicular to the lock axis (S), wherein the bolt (33) is biased into the locking position (V) by a spring (81), wherein the spring (81) is supported on the key secret changing device (85).

13. Chain lock (11) according to one of claims 9 to 12, wherein the bearing sleeve (49) has two fastening sections (59) projecting towards the second locking part (17), on which two bearing sleeve fastening openings (53) are formed for fastening the bearing sleeve (49) to the second locking part (17), wherein the key secret changing device (85) is arranged between the fastening sections (59) and in particular overlaps the fastening sections (59); and / or wherein the first locking part (15) is attached to the second locking part (17) by means of a fastening pin (57) passing through the bearing sleeve fastening openings (53), wherein the fastening pin (57) is arranged behind the key secret changing device (85) as viewed from the clevis insertion opening (29) along the lock axis (S) and in particular engages behind the key secret changing device (85).

14. Chain lock (11) according to one of the preceding claims, wherein the second locking part (17) has a coupling opening (101) at a coupling end (99) axial with respect to the lock axis (S), into which the second chain end (25) is inserted, wherein the second chain end (25) has an eyelet (103), wherein the second locking part (17) has a chain fastening opening (105), wherein the second chain end (25) is fastened to the second locking part (17) by a chain fastening pin (109) guided through the chain fastening opening (105) and the eyelet (103).

15. Strand lock (11) according to one of the preceding claims, wherein the strand shackle (21) is designed as a chain shackle or a rope shackle, in particular as a wire rope shackle.

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