DE102024111697A1 - Ring shackle lock - Google Patents

Abstract

A lock comprises a ring shackle and a locking device, the ring shackle having a first longitudinal end and a second longitudinal end. The ring shackle has a first hinge at its first longitudinal end and is divided at its second longitudinal end, forming a left shackle section and a right shackle section, the ring shackle being selectively opened or closed by a pivoting movement at the first hinge. The locking device is formed at the second longitudinal end of the ring shackle to selectively lock the ring shackle in the closed position.

Description

The invention relates to a lock with a ring shackle and a locking device, wherein the ring shackle has a first longitudinal end and a second longitudinal end.

Such locks can be used in a wide variety of applications to protect an object from unauthorized access and/or a space from unauthorized entry. For example, the shackle of such a lock can be opened at at least one end, allowing a section of a bicycle frame and a section of a fixed object, such as a bicycle rack, to be inserted into the shackle's interior. The shackle can then be closed and locked using the locking mechanism to form a closed loop around the inserted sections, thus securing the bicycle to the fixed object. Furthermore, the shackle of such a lock can also be used to connect a bicycle wheel to a frame section, preventing the wheel from rotating and thus preventing unauthorized riding of the bicycle. Similarly, the ring shackle can be passed through an eyelet of a hasp and then closed and locked to block a door and prevent access to a room enclosed by the door.

With locks of this type, the primary goal is to make opening, closing, and locking the shackle as simple and convenient as possible, especially given their often mobile use, which frequently involves operating the shackle. For example, when using a lock to secure bicycles, frequent opening and closing of the shackle may be necessary to secure the bicycle at different locations while allowing it to be unlocked for riding in between. Furthermore, particularly with such applications, convenient and space-saving storage and/or transport of the lock is often desirable.

Therefore, one objective of the invention is to create a lock of the type described which offers a simple and convenient way to selectively open and lock the ring shackle and which can also be stored or transported in a compact manner.

This problem is solved by a lock having the features of claim 1.

The ring shackle of the lock has a first pivot at its first longitudinal end and is divided at its second longitudinal end, forming a left shackle section and a right shackle section. Furthermore, the ring shackle can be selectively opened or closed by pivoting at the first pivot. The locking mechanism is also located at the second longitudinal end of the ring shackle and is designed to selectively lock the ring shackle in the closed position.

By having a first joint at its first longitudinal end, the ring shackle can be divided, in particular by this first joint, into a left shackle section and a right shackle section, whereby the left and right shackle sections can be movable relative to each other at the joint. For example, the two shackle sections can be pivoted relative to each other at the first joint to open the ring shackle, such that the shackle sections at the second longitudinal end are moved apart, creating an opening between each end of the shackle sections. This allows, for instance, a section of a bicycle frame and a section of a stationary object to be inserted into an interior of the ring shackle. Therefore, in the open state of the ring shackle, an opening can exist between each end of the shackle sections, through which a section of an object to be secured can be inserted into an interior of the ring shackle.

To secure an object, after inserting one section into the interior, the shackle sections can be moved towards each other at the first joint by a pivoting motion opposite to the opening motion. This closes the opening between the shackle sections at the second longitudinal end. In the closed position, the ring shackle can therefore form a closed loop that completely encloses and/or surrounds the interior of the ring shackle. Subsequently, or during the pivoting motion to close the ring shackle, the shackle sections can also be locked together to prevent unauthorized opening of the ring shackle.

The lock can thus be operated, in a sense, like a pair of pliers, to open and close the ring shackle by means of a respective pivoting movement of the shackle sections at the first longitudinal end. The joint at the second longitudinal end can be moved either apart (opening) or together (closing). This allows for simple and intuitive operation of the lock.

Furthermore, the locking mechanism can be integrated directly into the ring shackle by its immediate formation at the second longitudinal end of the ring shackle, thus achieving a compact and elegant lock design. For example, this eliminates the need to insert the shackle sections into a lock housing that can be separated from the ring shackle during use. Instead, the shackle sections can be moved directly into a position by pivoting at the first joint, allowing them to lock against each other.

For example, the locking device can have a locking mechanism at one end section of a shackle section of the two shackle sections (left shackle section or right shackle section) and a locking section at one end section of the other shackle section, which can optionally be locked by means of the locking mechanism on one shackle section when the ring shackle is in the closed state.

Furthermore, it may be provided, for example, that the left and right shackle sections can be locked together solely and/or exclusively by performing the pivoting movement at the first joint to close the ring shackle, so that securely locking the lock may only require moving the ring shackle into the closed position and/or forming a closed loop using the ring shackle. The locking device may therefore, in some embodiments, provide an automatic function for locking the shackle sections, as explained in more detail below. However, it may also be provided that the ring shackle must first be moved into the closed position in order to then lock it deliberately and intentionally in a further step, for example, by operating a lock cylinder with a key.

In principle, the locking device and/or the aforementioned locking mechanism for locking the shackle sections together can, for example, include a locking cylinder that can be operated by a mechanical key, by means of which a bolt can be driven. Furthermore, it can also be provided, for example, that the locking device includes an electronic cylinder for driving such a bolt, whereby such an electronic cylinder can, in particular, be set in rotation by an electric motor.

Furthermore, the lock can, for example, be designed as a combination lock and have several rotatable code rings, whereby the interlocked shackle sections can be released from each other and the shackle opened by setting a code on the code rings, whereas the shackle sections can be secured against separation from each other when no code is set. Therefore, when no code is set, a bolt of the locking mechanism can, for example, be blocked from moving into an unlocked position, while when a code is set, the bolt can be released to move into the unlocked position. Such a function of combination locks is generally known to those skilled in the art, so it need not be discussed in detail here.

The ring shackle can be made of steel, for example, round or flat steel. It can also be hardened. However, the lock may have a covering, particularly made of plastic, that surrounds the ring shackle and/or its shackle sections.

Further embodiments can be found in the dependent claims, the description and the figures.

In some embodiments, the locking device may be designed to automatically lock the left bracket section and the right bracket section together when the ring bracket is closed by the pivoting movement at the first joint.

For this purpose, the locking device can, for example, have a bolt pre-tensioned towards a locking position, which is designed to be contacted by one of the shackle sections during the pivoting movement at the first joint and displaced from the locking position, but after the pivoting movement ends, to return to the locking position due to the pre-tension and thus lock the shackle sections together. Therefore, such a pre-tensioned bolt can provide an automatic function for the lock, enabling the lock to engage automatically and immediately upon closing of the shackle. to lock the pivoting movement at the first joint without requiring separate actuation of the locking device.

While such a pre-tensioned bolt can be forced out of the locked position by the pivoting movement to close the ring shackle, the bolt in the locked position can block the shackle sections relative to each other against a pivoting movement at the first hinge for opening the ring shackle after the ring shackle has been closed. For example, the bolt and/or the shackle section lockable by the bolt, and in particular a closing section of the shackle section, can have a chamfer by which the bolt can be forced out of the locked position against the pre-tension when the ring shackle is closed. Furthermore, the bolt and the lockable shackle section, in particular the closing section, can, for example, each have stop surfaces oriented perpendicular to a direction of the pivoting movement to open the ring shackle, which bear against each other when the ring shackle is locked and can thereby prevent the shackle sections from separating from one another.

However, in order to open the ring bolt, the bolt can be connected to an actuator, for example a locking cylinder or an electric drive, so that authorized persons can, by actuating the actuator and, for example, turning a locking cylinder with an assigned key, selectively force the bolt into an unlocking position against the preload, thereby releasing the bolt sections from each other.

In some embodiments, the aforementioned bolt can be translationally movable between the locked and unlocked positions and, in particular, can be biased into the locked position by a spring. In other embodiments, however, the bolt can be designed as a rotary bolt and be rotatable between the unlocked and locked positions. In such embodiments, the bolt can therefore be biased into the locked position, in particular, by a torsion spring.

In some embodiments, the locking device can be purely mechanical. In other embodiments, however, the locking device can be electromechanical.

For example, a purely mechanical locking device can have a locking cylinder operated by an associated key to lock the two shackle sections together. Such a locking cylinder of a purely mechanical locking device can be coupled to a rotary bolt, so that a rotation of the locking cylinder can be transferred to the rotary bolt to drive the rotary bolt from a locked position to an unlocked position – and vice versa. Alternatively, a purely mechanical locking device can, for example, have a number wheel with several rotatable code rings on which a key code can be set or adjusted. In this case, the shackle sections can be locked together by a bolt when the ring shackle is in the closed position and the key code is not set, but can be released from each other by setting the key code.

An electromechanical locking device, on the other hand, can have an electric drive for operating a bolt, in order to selectively lock the shackle sections together in the closed state of the ring shackle or to release them from each other and open the ring shackle. For this purpose, an electromechanical locking device (or its electromechanical locking mechanism) can, in particular, have an electric motor for generating drive power to operate the bolt and an electrical energy source for providing the electrical energy required by the electric motor.

Furthermore, an electromechanical locking device may, for example, include a radio receiver to receive commands for selectively releasing and/or locking the closed ring clasp via a radio connection, such as a cellular connection, Bluetooth connection, NFC (Near Field Communication), RFID (Radio Frequency Identification), and/or WLAN/WiFi connection. A control unit (e.g., a microprocessor) may also be included to control the electric drive according to the received commands, which could be sent from a smartphone, for example. Alternatively, instead of transmitting commands via a radio connection, an electromechanical locking device may also include sensors for capturing biometric features, such as a fingerprint sensor, to issue a command to release the ring clasp, for example, after a verification. to be able to transmit and execute a respective biometric parameter, such as a fingerprint.

In some embodiments, the ring bracket may have a second hinge on both the left and right bracket sections, dividing each section into a front and a rear bracket segment. Furthermore, in such embodiments, the ring bracket may optionally be foldable into a storage position by means of a pivoting movement at these second hinges.

In such embodiments, the ring clasp can therefore be opened or closed by a pivoting movement at the first joint, i.e., moved between an open and a closed state. In the open state, the ring clasp can be open at its second longitudinal end, in particular to allow a section of an object to be secured to be inserted into an interior of the ring clasp. Conversely, as a result of the pivoting movement at the first joint and the movement of the ring clasp into the closed state, the ring clasp can form a closed loop that encloses the inserted section of the object to be secured. Since the clasp sections only need to perform a pivoting movement at the first joint to open and close the ring clasp, they can be guided in a plane of extension of the ring clasp during this pivoting movement. Thus, in the closed state, after the pivoting movement at the first joint, the ring clasp can extend as a closed loop in this plane of extension.

However, in some embodiments, the two shackle sections can be divided into respective front shackle segments and rear shackle segments, which are connected to each other via a respective second joint. This allows the ring shackle to allow further pivoting movements at the second joints of the shackle sections in addition to the pivoting movement at the first joint, which increases the flexibility of handling and, in particular, allows the lock to be moved into a compact storage position.

For example, by using second joints whose joint axes are aligned parallel to the joint axis of the first joint, the shape of the ring loop can be changed within the aforementioned plane of extension, allowing for the formation of a relatively narrower or wider loop. Conversely, joint axes of the second joints aligned perpendicular to the joint axis of the first joint can allow the loop segments to pivot out of the aforementioned plane of extension, thus enabling flexible adjustment of the ring loop during use.

In particular, the shackle and/or the lock can optionally be folded into a storage position by means of the pivoting movement at the second joints, in order to store and/or transport the lock in a compact arrangement. Because the lock can be folded into the storage position, its extension in this position can be fundamentally reduced compared to its extension when not in the storage position. Furthermore, for example, the distance between the two longitudinal ends of the shackle in the storage position can be smaller than in a working position of the lock or shackle, in which the shackle segments are not deflected relative to each other at the second joints.

In general, a position of use of the ring bracket within the scope of the present disclosure can denote a position of the ring bracket in which the bracket segments of a respective bracket section are not pivoted relative to each other at the second joints.

In particular, the ring clasp can also extend in the aforementioned plane of extension in the storage position, in which the ring clasp is in the closed state when it forms a closed loop, without the clasp segments being deflected or pivoted relative to each other at the second joints. For example, if the joint axes of the second joints are oriented perpendicular to the joint axis of the first joint, it can be provided that the clasp segments are first folded out of the plane of extension to fold the ring clasp into the storage position, and then folded back into the plane of extension. In particular, folding the ring clasp into the storage position can therefore involve a pivoting movement of the clasp segments of a respective clasp section by 180 degrees relative to each other at the second joints. In contrast, if the joint axes of the second joints are aligned parallel to the joint axis of the first joint, it may be provided that folding into the storage position takes place within the extension plane of the ring bracket, whereby, for example, the front bracket segments are pivoted into the rear bracket segments or attached to the outside of the rear The ironing board segments can be swung towards it.

In some embodiments, the ring bracket can be folded by the pivoting movement at the second joints in such a way that the rear bracket segment and the front bracket segment of the respective bracket section lie next to each other. Thus, the front bracket segment of a given bracket section can, in a sense, be folded back into its storage position relative to the rear bracket segment during folding, in order to lie next to the rear bracket segment and thereby reduce the extension of the ring bracket, while still achieving an arrangement of the ring bracket within a single plane of extension.

In some embodiments, the rear shackle segments of the shackle sections can, in the storage position, run along the respective front shackle segment of the associated shackle section and extend in a storage plane defined by the extension of the front shackle segments. In particular, in such embodiments, it can be provided that, starting from a working position of the ring shackle in which the shackle segments are not pivoted relative to each other at the second pivot points and the ring shackle can extend as a whole in a single plane, the rear shackle segments can be folded relative to the front shackle segments around the second pivot axes in the direction of the front shackle segments in order to be folded into a storage plane defined by the front shackle segments and thereby transfer the lock or ring shackle into a compact storage position. If the front shackle segments remain stationary during this folding process, the storage plane can, in particular, correspond to the extension plane. Furthermore, by allowing the front shackle segments to extend along the rear shackle segments in the storage position, the lock's overall dimensions in storage can be minimized, as the rear shackle segments can connect directly to an outer or inner surface of the front shackle segments. In particular, the shape of the lock in the storage position can therefore be essentially determined by the shape of the front shackle segments.

In general, the lock can be folded into the storage position by the pivoting movement of the rear shackle segments relative to the front shackle segments, so that to move the ring shackle into the storage position the rear shackle segments, the front shackle segments and/or both the rear shackle segments and the front shackle segments can be moved.

Furthermore, in some embodiments, the first longitudinal end and the second longitudinal end of the ring bracket can be arranged directly adjacent to each other in the storage position.

In a working position of the ring clasp, in which the clasp segments are not pivoted relative to each other at the second joints, the first longitudinal end and the second longitudinal end can be arranged in opposite directions and separated from each other by an interior space enclosed by the ring clasp. In the working position, the interior space of the ring clasp can therefore separate the longitudinal ends, which are thus not adjacent to each other in the working position, but rather form opposite ends of the loop created by the ring clasp in its closed state.

Due to the pivoting movement at the second joints, the front bracket segments of such embodiments can be folded relative to the rear bracket segments in such a way that the second longitudinal end comes into closer proximity to the first longitudinal end. Therefore, in the storage position, the two longitudinal ends can lie directly against each other or be separated only by a gap between the respective front and rear bracket segments of a bracket section. In a sense, the two longitudinal ends can thus be arranged directly one behind the other in the storage position.

In some embodiments, the rear bracket segments can be rotated 360 degrees around the second joints relative to the front bracket segments.

In some embodiments, the front shackle segments can be pivoted relative to the rear shackle segments about the second joints when the shackle is in the closed position. Such a design of the ring shackle can, in particular, make it possible to pivot the ring shackle out of a plane of extension, even when closed, instead of forming a flat loop, and/or to change the shape of the loop within the plane of extension, thereby achieving greater flexibility in the use of the lock.

In some embodiments, the pivot axes of the second joints can coincide. In particular, the pivot axes of the second joint axes can fold together in such embodiments when the ring shackle is in the operating position and in the closed state. In such embodiments, the front shackle segments can thus pivot about a common pivot axis relative to the rear shackle segments, so that the shackle segments can be moved and, in particular, pivoted in the same way to move the lock into the storage position. In particular, this allows for a symmetrical and controlled operation of the ring shackle.

In some embodiments, the joint axes of the second joints can be aligned perpendicular to the joint axis of the first joint.

In particular, in such embodiments, the joint axes of the second joints can intersect the joint axis of the first joint without, however, cutting through it. Therefore, in such embodiments, the joint axes of the second joints can be arranged perpendicular to and spaced apart from the joint axis of the first joint.

For example, in such embodiments, the ring shackle can be selectively opened or closed by a pincer-like movement and a pivoting of the shackle sections about the pivot axis of the first joint. This movement can occur, in particular, within a plane of extension of the ring shackle to which the pivot axis of the first joint is consequently perpendicular. Conversely, the ring shackle can be folded into the storage position by a pivoting movement about a pivot axis perpendicular to it—the pivot axis of the second joints—so that, during folding into the storage position, the rear shackle segments can pivot out of the aforementioned plane of extension relative to the front shackle segments. However, in the storage position, the shackle segments can again be folded back into the plane of extension, resulting once more in a flat and compact arrangement of the ring shackle or lock in the storage position. In particular, the ring bracket can therefore be folded into the storage position by a pivoting movement of the rear bracket segments relative to the front bracket segments by 180 degrees around a joint axis of the second joints running in the plane of extension, starting from a closed loop formed in an extension plane.

Alternatively, in some embodiments, the pivot axes of the second joints may be aligned parallel to the pivot axis of the first joint. In particular, the pivot axes of the second joints may run parallel to the pivot axis of the first joint without intersecting it. In such embodiments, the front bracket sections may be pivotable relative to the rear bracket sections in a plane to move the ring bracket into the storage position. This plane is also used to selectively open or close the ring bracket at the first joint.

Such a pivoting movement can also enable the ring clasp to be folded into a compact storage position, for which the front clasp segments, especially when viewed relative to the rear clasp segments, can be folded back by a pivoting movement at the second joints, so that, for example, the respective outer sides of the front clasp segments and rear clasp segments of a respective clasp section can come into contact with each other when the ring clasp is in the storage position.

In some embodiments, the ring bracket can be pivoted into a substantially oval or circular shape by means of the pivoting movement at the first joint, which spans a plane of extension in the closed state of the ring bracket, not folded into the storage position, wherein the joint axis of the first joint can run perpendicular to the plane of extension and wherein the joint axes of the second joints can run within the plane of extension.

In particular, the ring clasp can be brought into a closed state and into the form of a closed loop by means of a pivoting movement at the first joint, whereby this loop can, in particular, have an oval or circular shape. However, it is also possible, for example, for the ring clasp to be brought into a rectangular, triangular, or rhombus shape by means of a pivoting movement at the first joint and its being brought into the closed state.

As already explained, due to the perpendicular orientation of the joint axis of the first joint to the extension plane, the stirrup arms can be used. The segments can be moved by the pivoting movement at the first joint, particularly within the plane of extension. However, a movement of the bracket segments to fold the ring bracket into the storage position can initially move the bracket segments out of the plane of extension. In the storage position of the ring bracket, the bracket segments may, however, be arranged again in the plane of extension or the aforementioned storage plane. The ring bracket can therefore also extend in the plane of extension in the storage position, although, due to the folding into the storage position, the ring bracket may have a smaller overall extension within the plane of extension compared to the oval or round shape (or generally the respective loop shape).

In some embodiments, each of the bracket segments can be curved. In particular, each of the bracket segments can be substantially J-shaped or C-shaped. This can, in particular, make it possible to arrange the bracket segments side by side in the storage position, since the bracket segments can have a corresponding shape. Furthermore, substantially J-shaped bracket segments can collectively form substantially C-shaped bracket sections, which, when closed, can form respective halves of a closed loop with an oval, circular, or substantially rectangular shape.

In general, the respective end sections of the front bracket segments, which lie against each other at the second longitudinal end when the ring bracket is closed, can also lie against each other in the storage position in some embodiments. Alternatively or additionally, the ring bracket can also be locked and/or locked in the storage position in some embodiments.

In some embodiments, the ring clasp can be folded into the storage position when closed. In such embodiments, it may therefore be necessary to first move the ring clasp into the closed position and then fold it into the storage position. In this respect, the clasp sections of the ring clasp can also be connected to each other in the storage position, so that the ring clasp can be stored stably and, for example, transported.

The front temple segments can essentially form a U-shape when the ring temple is closed, and the rear temple segments can also essentially form a U-shape when the ring temple is closed. Furthermore, the U-shape of the rear temple segments can pivot into the U-shape of the front temple segments by means of the pivoting movement at the second joints.

In particular, the respective U-shapes of the rear and front bracket segments can be mirror images of each other in the closed and operational state of the ring bracket, so that the respective legs of the U-shapes face each other to form a closed loop using the ring bracket. In the storage position, however, the respective U-shapes can be identically oriented and, in particular, lie within each other to create a compact arrangement of the ring bracket. Specifically, the U-shape of the rear bracket sections can be folded into the U-shape of the front bracket sections in the storage position, so that the respective outer sides of the rear bracket segments extend along the respective inner sides of the front bracket segments. Alternatively, a reverse arrangement can also be provided, in which a U-shape of the front temple segments can be pivoted into a U-shape of the rear temple segments, so that respective outer sides of the front temple segments can extend along respective inner sides of the rear temple segments in the storage position.

In particular, the ring clasp can therefore have a U-shape in some embodiments when in the storage position. Furthermore, in such embodiments, the ring clasp can form a closed loop, especially when closed and in the operating position.

In the context of this disclosure, a U-shape is generally to be understood as a shape in which two legs are connected by a connecting section or at a connecting point and extend from this connecting section or point in the same direction. Therefore, a half-rectangular shape or a V-shape can also be understood as U-shaped within the meaning of this disclosure.

In some embodiments, the locking device may have a locking section on one yoke section of an insertion opening and a locking section on the other yoke section, which is engaged by the pivoting movement at the first joint along an insertion direction into the insertion opening. The locking device can be inserted. Furthermore, one of the shackle sections can have a rotary latch which is rotatable about a pivot axis between an unlocked position and a locked position, and which may be biased into the locked position. Additionally, the rotary latch can be forced into the unlocked position against the bias by a cam formed on the locking section when the locking section is inserted, and can be designed to rotate back into the locked position as a result of the locking section being fully inserted into the insertion opening.

The axis of rotation of the rotary bolt can generally be aligned perpendicular to the insertion direction of the locking section of the aforementioned other bolt section.

In particular, the rotary bolt can be designed to return to the locked position due to preload as soon as the locking section is fully inserted into the insertion opening. The rotary bolt can therefore enable an automatic function of the lock, as the two shackle sections can be locked together immediately upon insertion of the locking section into the insertion opening. For this purpose, the rotary bolt can be preloaded into the locked position, in particular by means of a torsion spring, so that the bolt must be rotated against the tension of the torsion spring in order to reach the unlocked position and release the locking section from the insertion opening. In comparison to translationally movable bolts that are pre-tensioned into a locking position, such a rotary bolt can therefore offer particular protection against break-in attempts using the so-called hammer blow method, in which a blow is applied to a lock housing to briefly push back a translationally pre-tensioned bolt against the pre-tension and at the same time pull on a locking section so that the locking section can be released from the lock housing.

In particular, the rotary bolt can be rotated from the locked position to the unlocked position by a force transmitted tangentially to the rotary bolt from the cam to the rotary bolt during insertion of the locking section. While a subsequent pull on the shackle section containing the locking section can, in principle, transmit a tangential force to the rotary bolt opposite to the tangential force transmitted during insertion, any resulting rotation of the rotary bolt can be blocked by the locking mechanism, and the inserted locking bar can be locked against such release from the insertion opening. Therefore, to move the rotary bolt to the unlocked position and remove the locking section when it is inserted and locked, proper operation of the locking mechanism may be necessary.

For example, the rotary bolt can have a removal recess which, in the unlocked position of the rotary bolt, can be aligned with a path described by the locking bar or its cam when removed from the insertion opening, so that, in particular, the cam can be guided through such a removal recess when the rotary bolt is in the unlocked position. In the locked position, however, the removal recess can be rotated in such a way that the cam cannot be guided through the removal recess, but instead abuts a limit of the rotary bolt when a force directed out of the insertion opening is exerted on the locking section.

In some embodiments, the locking device may also include a locking cylinder or an electric drive on one of the shackle sections, which may be configured to drive an eccentric to rotate. Furthermore, with the locking section inserted into the insertion opening, the rotary bolt can be moved into the unlocked position by rotating the eccentric.

In particular, a lock cylinder can be operated and rotated by means of an associated mechanical key, thereby also enabling the eccentric, which may be rigidly coupled to a part of the lock cylinder, to rotate. Such a lock cylinder may, in particular, have a cylinder core rotatably mounted in a cylinder housing and several tumblers which can be sorted by the associated key, but which, when the key is not inserted, block rotation of the cylinder core relative to the cylinder housing.

An electric drive can, in particular, include an electric motor to generate a rotary motion in order to drive an eccentric to the rotation described.

In particular, the eccentric can be designed to contact the rotary bolt in the locked position and block it against rotation, for example, due to a forced pull on the locking section. Due to such contact, the eccentric can lock the rotary bolt. However, when rotated by the locking cylinder or the electric drive, the eccentric is engaged to turn the locking bolt into the unlocking position, thereby releasing the inserted locking section for removal from the insertion opening. In particular, the eccentric can therefore rest against a stop surface of the locking bolt in the locked position, both to prevent rotation of the locking bolt by pulling on the locking section against the insertion direction and to selectively drive the locking bolt into the unlocking position.

According to one embodiment, the rotary bolt can be rotatable about an axis of rotation oriented perpendicular to the insertion direction of the locking section, wherein the locking cylinder or electric drive is oriented parallel to the insertion direction and the eccentric can be driven to rotate about an axis of rotation oriented parallel to the insertion direction. If the axis of rotation of the eccentric and the locking cylinder or the electric drive are oriented parallel to the insertion direction, the axis of rotation of the eccentric can correspond to, or be aligned parallel to, the axis of rotation of a cylinder core of the locking cylinder or a motor shaft of an electric motor of the electric drive.

In some embodiments, the axis of rotation of the eccentric and/or the cylinder core and/or the electric motor can be arranged perpendicular to the axis of rotation of the rotary bolt, particularly if the axis of rotation of the rotary bolt is aligned perpendicular to the insertion direction of the locking section. This allows for a more compact design of the locking device, as not all components of the locking device are aligned along the insertion direction, but rather the perpendicular orientation of the rotary bolt saves space in this direction.

In general, the aforementioned locking mechanism of the locking device can be arranged on one shackle section in order to selectively lock the locking section of the locking device located on the other shackle section. The locking mechanism can therefore comprise one or more of the components mentioned above as being arranged on one shackle section.

In some embodiments, the lock can have a lock body and a protective housing at the second longitudinal end of the ring shackle, which surround at least part of the locking device and to which one of the shackle sections is fixed. The protective housing can be hooked onto the lock body at one attachment point – in particular at one end – and attached to the lock body at another attachment point – in particular at another end – of the lock body, with one shackle section being trapped between the lock body and the protective housing.

In particular, components of the locking mechanism can be arranged within the lock body, and the protective housing can serve to close any openings in the lock body required to accommodate these components, thereby securing them against unauthorized access. However, the protective housing may, for example, have the aforementioned insertion opening for inserting a locking section, or the insertion opening may remain open on the lock body. It is not necessary for the lock body and the protective housing to completely enclose the locking mechanism.

By allowing the protective housing to be hooked onto one mounting point of the lock body, it only needs to be attached to the other mounting point, thus enabling quick and easy installation. Furthermore, the protective housing can be made of a hardened material to provide reliable protection against forced entry and/or sawing.

Furthermore, attaching the protective housing to the lock body can also enable the connection of the aforementioned shackle section to the locking device components provided thereon, by allowing the shackle section to be trapped, in particular directly, between the lock body and the protective housing. Specifically, the shackle section can be trapped between the lock body and the protective housing by positive locking.

In particular, in some embodiments the aforementioned rotary bolt, as well as the aforementioned locking cylinder or the aforementioned electric drive, may be held in the lock body and/or the protective housing may at least partially surround the rotary bolt.

In some embodiments, the lock body, the protective housing, and one shackle section can furthermore be held together by a single fastening means. For example, it can be provided that the protective housing is fastened at the end where the The protective housing is attached to the lock body by a rivet passing through both the protective housing and the lock body. One shackle section can be trapped between the rivet and the protective housing in such a way that it cannot slip out of the lock body. For example, retaining projections can also be provided on the protective housing to engage in openings formed on the shackle section and prevent it from slipping out of the gap formed by the rivet and the protective housing. A sufficiently small distance between the rivet and the protective housing can also prevent the shackle section from detaching from the retaining projections, thus ensuring a secure connection between the shackle section and the lock body and the protective housing.

In some embodiments, the locking section can be covered by a sleeve that is pre-tensioned in the direction of one of the shackle sections. Such a sleeve can, in particular, be pushed back against the pre-tension when the ring shackle is closed, so that the locking section can emerge from the sleeve and be inserted into the insertion opening. Conversely, when the ring shackle is open, the sleeve can cover the locking section to protect it, for example, from damage or contamination.

The invention is explained below by way of example using a specific embodiment with reference to the drawings.

• 1A bis 1C jeweilige perspektivische Darstellungen eines Schlosses mit einem Ringbügel in einem offenen Zustand, in einem geschlossenen Zustand, in welchem der Ringbügel eine geschlossene Schlaufe bildet, und in einem in eine Aufbewahrungsstellung gefalteten Zustand;
• 2A und 2B eine weitere Darstellung des Schlosses mit entnommener Verkleidung des Ringbügels sowie eine Detailansicht auf ein zweites Längsende des Ringbügels, an welchem eine Verriegelungseinrichtung ausgebildet ist;
• 3A und 3B jeweilige Explosionsdarstellungen von an einem vorderen Bügelsegment eines linken Bügelabschnitts des Ringbügels angeordneten Komponenten der Verriegelungseinrichtung;
• 4A bis 4C jeweilige Darstellungen auf einen zwischen einer Verriegelungsstellung und einer Entriegelungsstellung drehbaren Drehriegel bei in der Verriegelungsstellung positioniertem Drehriegel, bei in der Verriegelungsstellung positioniertem Drehriegel und verriegeltem Bügelabschnitt sowie bei in der Entriegelungsstellung positioniertem Drehriegel; und
• 5 eine Explosionsdarstellung von an einem vorderen Bügelsegment eines rechten Bügelabschnitts des Ringbügels angeordneten Komponenten der Verriegelungseinrichtung.

They show:

• 1A to 1C respective perspective views of a lock with a ring shackle in an open state, in a closed state in which the ring shackle forms a closed loop, and in a state folded into a storage position;
• 2A and 2B a further illustration of the lock with the ring shackle cover removed, as well as a detailed view of a second longitudinal end of the ring shackle, on which a locking device is formed;
• 3A and 3B respective exploded views of components of the locking device arranged on a front bracket segment of a left bracket section of the ring bracket;
• 4A to 4C respective illustrations of a rotary latch rotatable between a locking position and an unlocking position with the rotary latch positioned in the locking position, with the rotary latch positioned in the locking position and the locking lever section engaged, and with the rotary latch positioned in the unlocking position; and
• 5 An exploded view of components of the locking device arranged on a front bracket segment of a right bracket section of the ring bracket.

1A shows a lock 11 with a ring shackle 13, which is located in 1A The ring bracket 13 is in an open state O. It extends between a first longitudinal end 15 and a second longitudinal end 17 and has a first joint 21 at the first longitudinal end 15, such that the ring bracket 13 is divided into two bracket sections 25 and 27 which are pivotable relative to each other at the first joint 21, forming a left bracket section 25 and a right bracket section 27. Furthermore, in a working position H, the ring bracket 13 extends within a plane of extension E, with a joint axis G1 of the first joint 21 being oriented perpendicular to the plane of extension E.

As can be seen from the overall picture of the 1A and 1B As can be seen, the formation of the ring bracket 13 with the first joint 21 enables the ring bracket 13 to be moved like a pair of pliers by a pivoting movement P1 of the bracket sections 25 and 27 at the first joint 21 from the one in 1A shown open state O in a 1B to pivot the closed state C shown (or vice versa). This assumes 1A It is shown that the bracket sections 25 and 27 are separated from each other at the second longitudinal end 17 of the ring bracket 13 in the open state O, so that an opening 29 exists at the second longitudinal end 17 between the respective ends of the bracket sections 25 and 27, and that, for example, a frame section of a bicycle and a section of a stationary object, such as a bicycle stand, can be inserted into an interior 19 of the ring bracket 13. However, by the pivoting movement P1 and the transfer of the ring bracket 13 into the closed state C, the ring bracket 13 forms a closed loop S extending in the plane E, so that in the aforementioned example, the frame section of the bicycle and the stationary object are connected to each other by the closed ring bracket 13, and removal of the bicycle from the stationary object is prevented. Furthermore, it shows 1B , that the ring bracket 13 in the closed state and in the operating position H has an oval shape 43 and thus forms an oval closed loop S which ultimately spans the extension plane E.

Furthermore, in the 1A and 1B Figure 1 illustrates that a locking device 23 is formed at the second longitudinal end 17, at which the ring yoke 13 can be selectively opened or closed. This locking device has a locking section 47 covered by a sleeve 87 on the right yoke section 27 and a locking mechanism 18 on the left yoke section 25. As explained in more detail below, the locking section 47, and thus the right yoke section 27, can be selectively locked to the left yoke section 25 by means of a rotary bolt 49, which can be operated by a key 61, in order to secure the ring yoke 13 in the closed state C (see also Figure 23). 3A to 4C ).

As explained in more detail below, the locking device 23 is also designed to automatically lock the left shackle section 25 and the right shackle section 27 together when the ring shackle 13 is closed by the pivoting movement P1 at the first joint 21 and moved from the open state O to the closed state C. In this respect, the lock 11 allows for easy operation to open, close, and lock the ring shackle 13, as the shackle sections 25 and 27 can be selectively moved apart at the second longitudinal end 17 to open the lock 11, or brought together to move the lock 11 to the closed state C and lock the shackle sections 25 and 27 directly to each other.

However, in order to also enable compact storage and convenient transport of the lock 11, a second joint 31 is formed on the left shackle section 25 and a second joint 37 on the right shackle section 27, so that the left shackle section 25 is divided into a rear shackle segment 35 and a front shackle segment 33, and the right shackle section 27 into a rear shackle segment 41 and a front shackle segment 39. As can be seen in particular from 1B As can be seen, the joint axes G2 of the second joints 31 and 37 are aligned within the extension plane E of the ring bracket 13 when the ring bracket 13 is in the closed state C and in the operating position H, and coincide in this state of the ring bracket 13.

The second joints 31 and 37 therefore make it possible, in particular, to extend the ring bracket 13 from the point in 1B The position shown is changed by a pivoting movement P2 at the second joints 31 and 37 into a position that is in 1C to transfer the illustrated storage position A, in which the rear shackle segments 35 and 41 run along the respective front shackle segments 33 and 39 of the associated shackle section 25 or 27. Since the second pivot axes G2 are aligned within the extension plane E, the rear shackle segments 35 and 41 can, in a sense, initially be folded out of the extension plane E of the ring shackle 13 relative to the front shackle segments 33 and 39, whereby the rear shackle segments 35 and 41 return to the extension plane E in storage position A, so that the lock 11 also forms a flat arrangement in storage position A and extends in the extension plane E. Furthermore, the rear bracket segments 35 and 41 are thus in storage position A in a storage plane F defined by the front bracket segments 33 and 39, which corresponds to the extension plane E in the case of the front bracket segments 33 and 39 remaining unmoved during the pivoting movement P2.

In particular, the folding of the ring clasp 13 into storage position A can also be carried out in the closed state C of the ring clasp 13, so that the ring clasp 13 is, for example, only in the 1B The closed position C shown can be brought into place, and then folded into storage position A. Furthermore, the two bracket sections 25 and 27 can also be locked together and/or locked in storage position A.

Furthermore, it is particularly evident from the 1B and 1C It is evident that the respective temple segments 33, 35, 39 and 41 of temple sections 25 and 27 are all essentially J-shaped. This allows temple sections 25 and 27 to be designed as a whole in a C-shape, thereby facilitating the 1B The illustrated closed loop S with an oval shape 43 can be formed when the ring clasp 13 is closed. Furthermore, due to the shape of the clasp segments 33, 35, 39 and 41, folding the ring clasp 13 into storage position A allows the respective rear clasp segments 35 and 41 to extend along the associated front clasp segments 33 and 39, and the respective rear clasp segments 35 and 41 to lie next to the associated front clasp segments 33 and 39 in storage position A, with the clasp sections 25 and 27 remaining connected to each other at the second longitudinal end 17 in storage position A.

Furthermore, it is evident from the 1B and 1C highlighting that the front bracket segments 33 and 39 in the closed state C of the ring bracket 13, when it is in the operating position H, form a The rear shackle segments 35 and 41 form a U-shape U1, while the rear shackle segments 35 and 41 also form a U-shape U2. In the operating position H, in which the shackle segments 33, 35, 39, and 41 are not pivoted relative to each other at the second joints 31 and 37, the U-shapes U1 and U2 are, in a sense, mirror images of each other, with their respective legs facing each other. By folding into the storage position A, however, the U-shape U2 of the rear shackle segments 35 and 41 can be pivoted into the U-shape U1 of the front shackle segments 33 and 39, so that the lock 11 forms a U-shape overall in storage position A. Furthermore, the longitudinal ends 15 and 17 of the ring bracket 13 are arranged directly adjacent to each other in the storage position A, whereas the longitudinal ends 15 and 17 are opposite each other in the operating position H and in the closed state C of the ring bracket 13 and are separated from each other by the interior space 19 enclosed by the ring bracket 13.

Folding the ring shackle 13 into storage position A therefore makes it possible in particular to transfer the ring shackle 13 and thus the lock 11 into a compact arrangement, in order to be able to transport the lock 11 comfortably, for example while riding a bicycle.

The 2A and 2B The figures further illustrate the design of the locking device 23 formed at the second longitudinal end 17, wherein the aforementioned locking section 47 is formed with a cam 51 formed as a projection at one end of the front bracket segment 39 of the right bracket section 27. At one end of the left bracket section 25 or its front bracket segment 33, an insertion opening 45 is provided, into which the locking section 47 can be inserted along an insertion direction R as a result of the pivoting movement P1 at the first joint 21. In particular 2B Figure 1 further illustrates that a lock body 63 is arranged on the front shackle segment 33 of the left shackle section 25, wherein a protective housing 65 is hooked onto the lock body 63 at one end 73 and fastened to the lock body 63 at another end 75 by a fastening element 71 designed as a rivet 77. The protective housing 65 also features, in particular, the aforementioned insertion opening 45 for the locking section 47.

The design of the components of the locking device 23 and, in particular, the locking mechanism 18, arranged on the left bracket section 25 and its front bracket segment 33, is further described by reference to the 3A and 3B visible.

As can be seen from these figures, the locking device 23 has in particular a rotary bolt 49 which is rotatable about a pivot axis D oriented perpendicular to the insertion direction R and which can be driven by means of a locking cylinder 57 which can be actuated by the aforementioned key 61 (see also 4A and 4C The locking device 23 is therefore designed as a purely mechanical locking device 23 in the embodiment shown. Alternatively, however, it would also be possible, for example, to design the locking device 23 as an electromechanical locking device, in which, for instance, an electric drive could be used to drive the rotary bolt 49 instead of the locking cylinder 57.

The locking cylinder 57 is rotatable about a pivot axis B aligned parallel to the insertion direction R, which is thus perpendicular to the pivot axis D of the rotary bolt 49. Furthermore, the 3A and 3B that the rotary latch 49 is biased in the direction of a locking position V by a torsion spring 85, as is explained in more detail below (see also the 4A to 4C ).

The lock body 63 is specifically designed to house the locking cylinder 57 and the rotary bolt 49. To accommodate the locking cylinder 57 and the rotary bolt 49, the lock body 63 therefore has a mounting opening 99. Furthermore, a groove 91 is formed on the locking cylinder 57, and a pin 79 is provided which, when the locking cylinder 57 is inserted, can be guided through respective openings 101 in the lock body 63 to engage in the groove 91 and thereby axially fix the locking cylinder 57 in the lock body 63.

The protective housing 65 mentioned above is specifically designed to protect the locking cylinder 57 and the rotary bolt 49 from unauthorized access and to close the mounting opening 99. As the 3A and 3B To illustrate, the lock body 63 has a slot 67 at end 73 into which a tongue 69 formed on the protective housing 65 can be inserted in order to hook the protective housing 65 onto the lock body 63. At the end 75 of the lock body 63 opposite end 73, openings 93 are formed in the lock body 63, and the protective housing 65 has corresponding openings 93, so that the protective housing 65 can be attached to the lock body 63 by means of the rivet 77, which is guided through the openings 93 of the lock body 63 and the protective housing 65. The protective housing 65 can be attached to the lock body 63 by simply hooking it onto the end 75 and then fastening it to the other end 75 using a single fastening element 71, the rivet 77.

Furthermore, in particular, it shows 3B The protective housing 65 has two retaining projections 83, while the front shackle segment 33 of the left shackle section 25 has openings 81. In the assembled state, the retaining projections 83 of the protective housing 65 engage in the openings 81 of the shackle segment 33 to prevent the shackle segment 33 from slipping off the protective housing 65. Furthermore, the rivet 77 prevents the openings 81 of the shackle section 25 from disengaging from the retaining projections 83, so that the front shackle segment 33 is trapped between the protective housing 65 and the rivet 77, and thus between the protective housing 65 and the lock body 63, and cannot be detached from the lock body 63.

The 4A to 4C Illustrate the locking and unlocking of the stirrup sections 25 and 27 against each other.

As already explained, the rotary latch 49 is held in a position by the torsion spring 85. 4A The illustrated locking position V is pre-tensioned, in which a removal recess 53 formed on the rotary bolt 49 points opposite the insertion direction R and is oriented towards the insertion opening 45. Furthermore, an eccentric 55, driven by the locking cylinder 57 and rotationally coupled to the locking cylinder, rests against a stop 95 formed on the rotary bolt 49, with a recess 97 formed on the rotary bolt 49 adjoining the stop 95.

Due to this arrangement of the rotary bolt 49 and its design with the recess 97, the rotary bolt 49 can be rotated out of the locked position V by inserting the locking section 47 through the cam 51 against the preload of the torsion spring 85 (counterclockwise in the figures), whereby the eccentric 55 can be guided in the recess 97 during this rotation. The cam 51 can, in particular, engage against the limits of the removal recess 53 to achieve the rotation of the rotary bolt 49 by transmitting a tangential force.

How 4B However, as shown, after the locking section 57 has been fully inserted, the rotary bolt 49 can rotate back into the locking position V due to the preload provided by the torsion spring 85, so that automatic locking can be achieved as a result of the insertion of the locking section 47 into the insertion opening 45. If in the 4B In the illustrated position, the front bracket segment 39 of the right bracket section 27 is pulled in the opposite direction of insertion R to separate the two bracket sections 25 and 27. A tangential force is transmitted via the cam 51 to the rotary latch 49, which could, in principle, cause the latch to rotate in the opposite direction to the rotation during insertion of the locking section 47—in the figures, a clockwise rotation. However, since the eccentric 55 abuts the stop 95 of the rotary latch 49, such rotation of the rotary latch 49 is blocked, and the locking section 47 of the front bracket segment 39 of the right bracket section 27 cannot be removed from the insertion opening 45.

Consequently, it is necessary to operate the locking cylinder 57 in order to remove the locking section 47. How 4C As shown, by a corresponding rotation of the locking cylinder 57, the rotary bolt 49 can be moved into an unlocking position W, whereby the eccentric 55 carries the rotary bolt 49 over the stop 95. This allows the removal recess 53 to be positioned in a path of movement which the cam 51 describes when the locking section 47 is released from the insertion opening 45, so that the shackle sections 25 and 27 can be separated from each other and the ring shackle 13 can be moved into the open state O.

5 further illustrates that the locking section 47 already relates to 1A The aforementioned sleeve 87 is formed, being pre-tensioned by a spring 89 towards the left shackle section 25. Therefore, in the open state O of the ring shackle 13, the sleeve 87 covers the closing section 47 to protect it (cf. 1A) . As a result of the pivoting movement P1 at the first joint 21, the sleeve 87 can, however, strike a boundary of the insertion opening 45 and be pushed back against the force of the spring 89 to allow the insertion of the closing section 47 into the insertion opening 45.

List of reference symbols

11

Lock

13

Ring bow

15

first longitudinal end

17

second longitudinal end

18

locking mechanism

19

Interior

21

first joint

23

locking device

25

left ironing board section

27

right ironing board section

29

opening

31

second joint

33

front temple segment

35

rear bracket segment

37

second joint

39

front temple segment

41

rear bracket segment

43

oval shape

45

insertion opening

47

Closing section

49

rotary latch

51

cam

53

Removal recess

55

eccentric

57

Lock cylinder

61

Key

63

Lock body

65

Protective housing

67

slot

69

Tongue

71

Fasteners

73

End

75

End

77

rivet

79

Pen

81

opening

83

Holding elevation

85

torsion spring

87

Covering

89

Feather

91

Nut

93

opening

95

stop

97

recess

99

Mounting opening

101

opening

A

Storage position

B

axis of rotation of the eccentric

C

closed state

D

axis of rotation of the rotary latch

E

Level of extension

F

Storage level

G1

Joint axis of the first joint

G2

Joint axis of the second joint

H

Operating position

O

open state

P1

Swivel movement at the first joint

P2

Swivel movement at the second joint

R

Direction of insertion

S

loop

U1

U-shape of the front temple segments

U2

U-shape of the rear temple segments

V

Locking position

W

unlock position

Claims (15)

Lock (11) with a ring shackle (13) and a locking device (23), whereby the ring shackle (13) has a first longitudinal end (15) and a second longitudinal end (17), whereby the ring shackle (13) has a first hinge (21) at the first longitudinal end (15) and is divided at the second longitudinal end (17) so that a left shackle section (25) and a right shackle section (27) are formed, wherein the ring shackle (13) can be selectively opened or closed by a pivoting movement (P1) at the first hinge (21), wherein the locking device (23) is formed at the second longitudinal end (17) of the ring shackle (13) and is provided for selectively locking the ring shackle (13) in the closed state (C). Castle (11) after Claim 1 , wherein the locking device (23) is designed to automatically lock the left bracket section (25) and the right bracket section (27) together when the ring bracket (13) is closed by the pivoting movement (P1) at the first joint (21). Castle (11) after Claim 1 or 2 , wherein the locking device (23) is a purely mechanical or an electromechanical locking device. Lock (11) according to one of the preceding claims, wherein the ring shackle (13) has a second joint (31, 37) on the left shackle section (25) and on the right shackle section (27) respectively, by which the respective shackle section (25, 27) is divided into a front shackle segment (33, 39) and a rear shackle segment (35, 41), wherein the ring shackle (13) can be selectively folded into a storage position (A) by a pivoting movement (P2) at the second joints (31, 37). Castle (11) after Claim 4 , wherein the ring bracket (13) is foldable by the pivoting movement (P2) at the second joints (31, 37) such that the rear bracket segment (35, 41) and the front bracket segment (33, 39) of the respective bracket section (25, 27) come to lie next to each other; and/or wherein the rear bracket segments (35, 41) of the bracket sections (25, 27) in the storage position (A) extend along the respective front bracket segment (33, 39) of the associated bracket section (25, 27) and extend in a storage plane (F) defined by an extension of the front bracket segments (33, 39); and/or wherein the first longitudinal end (15) and the second longitudinal end (17) of the ring bracket (13) are arranged immediately adjacent to each other in the storage position (A). Castle (11) after a Claim 4 or 5 , whereby the joint axes (G2) of the second joints (31, 37) coincide. Castle (11) after one of the Claims 4 until 6 , wherein the joint axes (G2) of the second joints (31, 37) are aligned perpendicular to the joint axis (G1) of the first joint (21). Castle (11) after one of the Claims 4 until 7 , wherein the ring bracket (13) can be pivoted by the pivoting movement (P1) at the first joint (21) into a substantially oval or circular shape which, in the closed state of the ring bracket (13) not folded into the storage position (A), spans an extension plane (E), wherein the joint axis (G1) of the first joint (21) is perpendicular to the extension plane (E) and the joint axes (G2) of the second joints (31, 37) are within the extension plane (E). Castle (11) after one of the Claims 4 until 8 , wherein each of the stirrup segments (33, 35, 39, 41) is curved, in particular substantially J-shaped or C-shaped. Castle (11) after one of the Claims 4 until 9 , wherein the ring bracket (13) can be folded into the storage position (A) in the closed state (C). Castle (11) after one of the Claims 4 until 10 , wherein the front bracket segments (33, 39) in the closed state (C) of the ring bracket (13) essentially form a U-shape (U1), wherein the rear bracket segments (35, 41) in the closed state (C) of the ring bracket (13) also essentially form a U-shape (U2), and wherein the U-shape (U2) of the rear bracket segments (35, 41) can be pivoted into the U-shape (U1) of the front bracket segments (33, 39) by the pivoting movement (P2) at the second joints (31, 37). Lock (11) according to one of the preceding claims, in which the locking device (23) has an insertion opening (45) on one shackle section (25) and a locking section (47) on the other shackle section (27), which can be inserted into the insertion opening (45) by the pivoting movement (P1) at the first joint (21) along an insertion direction (R), and in which the locking device (23) has a rotary latch (49) on one shackle section (25), which is rotatable between an unlocked position (E) and a locked position (V), wherein the rotary latch (49) is biased into the locked position (V), and in which the rotary latch (49) can be forced into the unlocked position (E) by a cam (51) formed on the locking section (47) by the insertion of the locking section (47) and is configured to be fully inserted into the locking section. (47) to turn back into the locking position (V). Castle (11) after Claim 12 , wherein the locking device (23) on one of the lever sections (25) further comprises a locking cylinder (57) or an electric drive, wherein the locking cylinder (57) or the electric drive is designed to drive an eccentric (55) to a rotation, wherein the rotary bolt (49) is rotatable into the unlocking position (E) by rotating the eccentric (55) when the locking section (47) is inserted. Castle (11) after Claim 13 , wherein the rotary bolt (49) is rotatable about a rotation axis (D) oriented perpendicular to the insertion direction (R) of the locking section (47) between the unlocking position (E) and the locking position (V), wherein the locking cylinder (57) or electrical the drive is aligned parallel to the insertion direction (R), and wherein the eccentric (55) can be driven to rotate about a rotary axis (B) aligned parallel to the insertion direction (R). Lock (11) according to one of the preceding claims, in which the lock (11) has at the second longitudinal end (17) of the ring shackle (13) a lock body (63) and a protective housing (65) which surround at least a part of the locking device (23) and to which one of the shackle sections (25) is fixed, in which the protective housing (65) is hooked at a mounting point (73) of the lock body (63) and is attached to the lock body (63) at another mounting point (75) of the lock body (63), wherein one shackle section (25) is trapped between the lock body (63) and the protective housing (65).