Portable u-lock

Abstract

A portable U-lock comprises a lock body, which houses an electromechanical locking mechanism, and a shackle, which has at least one locking section that can selectively be introduced into the lock body or released from the lock body, wherein the locking mechanism comprises at least one latch and an electric motor for driving the latch, and the latch is designed to lock the shackle locking section inserted into the lock body to the lock body in a locking position and to release the shackle locking section for removing from the lock body in a release position. The electric motor is designed to move the latch selectively out of the locking position and into the release position via a drive transmission section of the locking mechanism, and the lock body has a watertight casing which surrounds the electric motor.

Description

[0001] The invention relates to a portable U-lock with a lock body that houses an electromechanical locking mechanism and with a rigid or flexible shackle that has at least one locking portion that can be selectively inserted into the lock body or detachable from the lock body. The locking mechanism comprises at least one bolt and an electric motor for driving the bolt. The bolt is designed to lock the locking portion of the shackle, which is inserted into the lock body, to the lock body in a locking position and to release the locking portion of the shackle for removal from the lock body in a release position.

[0002] Such portable U-locks can be used, for example, to secure objects moved between different locations, particularly bicycles, against unauthorized removal. For this purpose, the shackle can be looped around a section of a bicycle, such as a frame section, and around a stationary object such as a bicycle stand, in order to securely connect the bicycle to the stationary object after the locking section is locked to the lock body. Alternatively, bicycles can be secured against unauthorized removal by threading the loop formed by the shackle through the spokes of one of the wheels, thus limiting its movement.

[0003] Furthermore, such portable U-locks can be used to lock doors, for example, by inserting the shackle through the eyelet of a hasp and then locking the locking portion to the lock body. In particular, such locks can be used to securely lock loading hatches on trucks, container doors, or doors of smaller buildings, such as tool shed doors.

[0004] For example, portable padlocks with electromechanical locking mechanisms are known from US 2014 / 266588 A1, CN 104 695 769 B and KR 101 349 951 B1.

[0005] The design of such a portable U-lock with an electromechanical locking mechanism makes it possible to expand the functionality of the U-lock and, in particular, to make locking and unlocking as convenient as possible for the user. However, when using electronic components to selectively unlock and / or lock the inserted locking section, there is a fundamental risk that these components could be damaged by water or contaminants such as dust penetrating the interior of the lock body, resulting in the U-lock losing functionality and possibly becoming unusable. This issue is particularly relevant for portable U-locks, given their typical outdoor use, for example, to secure bicycles or external doors of small buildings.

[0006] It is therefore an object of the invention to provide a portable U-lock with an electromechanical locking mechanism and to protect it in a simple manner against contamination or damage caused by liquid or contamination penetrating into the interior of the lock body.

[0007] This object is achieved by a portable U-lock having the features of claim 1 and in particular in that the electric motor is designed to selectively move the bolt from the locking position into the release position via a drive transmission section of the locking mechanism, and in that the lock body has a waterproof casing which surrounds the electric motor.

[0008] The invention thus relates generally to a portable U-lock, comprising a lock body accommodating an electromechanical locking mechanism, and comprising a rigid or flexible shackle having at least one locking portion that can be selectively inserted into the lock body or detachable from the lock body, wherein the locking mechanism comprises at least one bolt and an electric motor for driving the bolt, wherein the bolt is designed to lock the locking portion of the shackle inserted into the lock body to the lock body in a locking position and to release the locking portion of the shackle for removal from the lock body in a release position, wherein the electric motor is designed to selectively move the bolt (at least) from the locking position to the release position via a drive transmission portion of the locking mechanism,and wherein the lock body has a waterproof shell surrounding the electric motor.,

[0009] By enclosing the electric motor of the locking mechanism of the portable U-lock within a waterproof casing, the electric motor can be protected from damage caused by external influences, particularly weather conditions such as rainwater or dust. The casing can be used to surround the electric motor and optionally other components of the locking mechanism, particularly electrical components, in a substantially waterproof manner, thus creating a watertight seal.

[0010] The aforementioned watertight design of the cover and the resulting sealing relate in connection with the invention in particular to the use of the U-lock at atmospheric pressure.

[0011] The shackle of the portable U-lock can be rigid or flexible and / or designed as an elongated structure with a first end and a second end. The shackle can be permanently connected to the lock body at one end (rigid or movable), or it can be completely detachable from the lock body in the unlocked state. The shackle can have a respective locking section at one or two ends, which can be inserted into the lock body and locked thereto. In particular, one or two bolts can also be provided for locking the locking section(s), which can be selectively moved from the locking position to the release position by the electric motor via a common or a respective drive transmission section.

[0012] Such a portable U-lock can, for example, be designed as a so-called articulated lock and comprise an articulated bar shackle having a plurality of pivotally connected articulated bars. In particular, one of these articulated bars can be firmly connected to the lock body, wherein the locking portion, which in such locks is also referred to as the locking bar, is formed at a free end of the articulated bar shackle and can be optionally inserted into or detachable from the lock body, wherein the inserted locking portion can be locked to the lock body by the bolt or can be released for removal from the lock body. Such a portable U-lock designed as an articulated lock is particularly suitable for securing two-wheelers.For this purpose, the free end of the articulated bar bracket forming the locking section can first be guided through a section of the bicycle and around a stationary object, so that after the locking section has been locked, the bicycle is securely connected to the stationary object by the loop formed by the articulated bar bracket.

[0013] Likewise, such a portable U-lock can be designed as a U-shaped shackle lock and have a rigid, at least substantially U-shaped shackle. Such a U-shackle can, for example, have two legs of equal length, which can be selectively inserted into a respective insertion opening of the lock body and locked to the lock body by means of two associated bolts. Alternatively, it can be provided to form a U-shackle with a long and a short leg. In this case, it is possible, for example, for the long leg to remain in an associated insertion opening of the lock body when the U-shackle is unlocked and opened, while the short leg is completely removed from the associated insertion opening. Thus, the U-shackle can be pivoted about the long leg and the short leg can be guided through a section of an object to be secured, such as an eyelet of a hasp.Again, both the short and the long leg can be locked to the lock body by means of associated bolts when both legs are fully inserted into it.

[0014] Furthermore, the shackle of a portable U-lock can be designed, for example, as a cable shackle, in particular as a wire cable shackle, or as a chain shackle, wherein at least one of the ends of such a cable or chain shackle can be detachable from the lock body and, for example, connected to a block which can be inserted into the lock body as a locking section and can optionally be locked to the lock body by means of a bolt.

[0015] In principle, other designs of rigid or flexible shackle for portable U-locks are also possible.

[0016] An automatic locking mechanism can be provided for locking the shackle to the lock body (automatic locking solely upon insertion of the shackle's locking portion into the lock body, for example, due to a spring-loaded bolt). Alternatively, the electric motor can also be configured to move the bolt selectively from the release position to the locking position or from the locking position to the release position, particularly based on corresponding electrical control commands.

[0017] The cover is also flexible and, in particular, elastically deformable. To this end, the cover is designed as a waterproof molded part and made of plastic, for example, silicone. Furthermore, the cover can be designed as a two-component plastic part or as a thin plastic film, whereby the cover can also be inelastically deformable. Furthermore, the cover can exhibit a certain degree of inherent stability, so that the cover remains in a predetermined shape during the intended use of the U-lock and, for example, during transport.

[0018] In principle, the casing can enclose other components in addition to the electric motor, and in particular all electrical components of the portable U-lock. Nevertheless, it is possible to lock the inserted locking section(s) of the shackle outside the casing by means of the bolt(s) moved into the locked position. Accordingly, the electromechanically driven bolt(s) can be arranged partially or completely outside the casing, at least in the locked position, in order to lock the shackle to the lock body.

[0019] To enable the bolt to be driven by the electric motor arranged inside the casing, the motor drives the drive transmission section, which can thus serve to transmit the drive power generated by the electric motor out of the casing. The drive transmission section of the locking mechanism can be designed as a transmission element or coupling element separate from the bolt, particularly if the bolt is arranged entirely outside the casing. Alternatively, the drive transmission section can be designed as an integral section of the bolt, i.e., as one piece with the bolt, particularly if the bolt is arranged partially inside the casing or protrudes into the casing.

[0020] In addition, according to the invention, the casing has at least one casing opening through which the drive transmission section of the locking mechanism protrudes in a sealed manner. Such a casing opening makes it possible to transmit the drive power generated by the electric motor within the casing to a part of the bolt(s) located outside the casing. By having the drive transmission section of the locking mechanism protrude sealed through the casing opening, it can be prevented that water or dirt enters the interior of the casing through the casing opening. The seal can be adapted to a movement of the bolt or the drive transmission section, for example a rotational movement or a translational movement, in order to achieve reliable sealing in the various bolt positions and during the movement of the bolt or the drive transmission section.

[0021] Further embodiments of the invention can be found in the dependent claims, the description and the figures.

[0022] The lock body can have a bearing section with a bearing opening in which the drive transmission section of the locking mechanism is movably mounted and which is aligned with the sleeve opening, wherein the bearing opening and the sleeve opening can, however, have different diameters. The sleeve can be held on the bearing section in an at least substantially watertight seal, wherein at least one sealing element is provided which is arranged between the drive transmission section and a circumferential boundary of the bearing opening, wherein the bearing opening is closed by the drive transmission section and the sealing element and is sealed at least substantially watertight. The sealing element can, for example, be designed as a sealing ring.The aforementioned bearing section of the lock body can be arranged inside or outside the casing and support the drive transmission section, in particular radially with respect to the direction in which the drive transmission section passes through the casing opening and the bearing opening. Furthermore, the lock body can have a housing that encloses the bearing section or to which the bearing section is firmly connected. In particular, the bearing section can be formed by a connecting section of a support for the electric motor arranged inside the casing and / or by a counter-connecting section arranged outside the casing.

[0023] By connecting the sleeve to the bearing section in a substantially watertight manner or by holding it to the bearing section, the penetration of water at this connection can be reliably prevented. For this purpose, the sleeve can be, for example, watertightly bonded to the bearing section or connected to the bearing section by means of one or more fixing elements or pressed against the bearing section. By holding the drive transmission section in the bearing opening and closing and sealing it with the sealing element, the interior of the sleeve can be sealed at least substantially watertight despite the existing sleeve opening.The drive power generated by the electric motor can thus be transferred to a section of the latch located outside the casing, without exposing the components of the locking mechanism located inside the casing to the risk of contamination or damage from liquids entering. Further embodiments of this will be explained in more detail below.

[0024] In some embodiments, the lock body may comprise a support that carries at least part of the locking mechanism and is surrounded by the casing. Such a support allows at least parts of the locking mechanism to be arranged thereon and firmly connected to it, so that these parts are held in a defined, vibration-proof position in the lock body and within the casing.

[0025] The carrier can carry the electric motor and movably mount the drive transmission section. In particular, this allows the position of the electric motor to be clearly defined and ensures that it always remains reliably and stably in the correct position within the casing during long-term use of the portable U-lock and also during transport. The drive transmission section can furthermore be supported on the carrier, in particular in the radial direction relative to its passage direction through the casing opening, so that, for example, forces exerted on the drive transmission section from the radial direction during a break-in attempt can be absorbed by the carrier without directly acting on the components arranged within the casing, and in particular the electric motor. Furthermore, the carrier can thus form a secure guide for the drive transmission section during a movement of the bolt.

[0026] The sleeve can have a clamping section that circumferentially surrounds the sleeve opening, wherein the carrier can have a connecting section that rests against an inner side of the clamping section of the sleeve and has a connecting opening. The lock body can have a mating connecting section that rests against an outer side of the clamping section of the sleeve and has a mating connecting opening, wherein the clamping section of the sleeve is arranged between the connecting section of the carrier and the mating connecting section of the lock body, and the drive transmission section of the locking mechanism protrudes through the connecting opening of the carrier, the sleeve opening, and the mating connecting opening of the lock body. For this purpose, the connecting opening of the carrier, the sleeve opening, and the mating connecting opening of the lock body can be aligned with one another, but have different diameters.Both the carrier and its connecting section as well as the counter-connecting section can be made of metal and protect the locking mechanism from external access.

[0027] The connecting section of the carrier can extend, in particular, perpendicularly or parallel to a supporting section of the carrier, on which at least some of the components of the locking mechanism, and in particular the electric motor, are arranged. In particular, the carrier can form an inner housing of the U-lock, which is surrounded by the casing and protects the components arranged on the carrier from damage caused by external forces.

[0028] In such embodiments, the connecting portion of the carrier can be connected to the mating connecting portion such that the clamping portion of the cover is clamped between the connecting portion of the carrier and the mating connecting portion of the lock body and is thereby compressed. The clamping portion of the cover thus closes the gap created between the connecting portion and the mating connecting portion and seals it to particularly reliably prevent water from penetrating the interior of the cover at this location.

[0029] The clamping section of the cover can thus be arranged in particular in a clamping gap which is formed between the connecting section of the carrier and the counter-connecting section of the lock body, wherein the counter-connecting section of the lock body and the connecting section of the carrier are fixed to one another in a force-fitting manner such that the clamping section of the cover is clamped in the clamping gap and the clamping gap is sealed at least substantially water-tight by the clamping section of the cover.

[0030] For this purpose, the clamping section of the sleeve can, for example, be pressed over a sealing edge which can be formed on the connecting section of the carrier or on the counter-connecting section of the lock body.

[0031] As already mentioned, the lock body can have at least one sealing element which is arranged between the drive transmission section of the locking mechanism and a circumferential boundary of the connection opening of the connection section of the carrier and / or a circumferential boundary of the counter-connection opening of the counter-connection section of the lock body, wherein the connection opening and / or the counter-connection opening is / are closed by the drive transmission section and the sealing element and is / are sealed at least substantially impermeable to water.

[0032] In turn, the connecting opening aligned with the casing opening and the mating connecting opening aligned therewith can be provided to transmit the drive power generated by the electric motor within the casing to a section of the bolt, which is arranged outside the casing at least in the locking position and serves to lock the locking section of the shackle inserted into the lock body. The gap created between the connecting section of the carrier and the mating connecting section of the lock body can be sealed watertight by the clamping section of the casing. Since at least the connecting opening or the mating connecting opening can be closed and at least substantially watertightly sealed by the drive transmission section and the sealing element, the ingress of liquid into the interior of the casing through these openings can be prevented.In principle, it may be sufficient to seal only the connection opening or the counter-connection opening by means of the drive transmission section and a sealing element, while it may also be provided to arrange sealing elements at both openings and to seal both openings in a watertight manner.

[0033] The sealing element can be adapted to a movement of the drive transmission section during a movement of the bolt from the locking position to the release position in order to reliably seal the respective opening both in both locking positions and during the movement of the bolt. In particular, adaptations of the sealing element to rotational or translational movements are considered, for which purpose the sealing element can be designed, for example, as a sealing ring (also referred to as an O-ring).

[0034] In some embodiments, the mating connecting portion of the lock body can be fixed to the connecting portion of the carrier by means of a fixing element. For example, the mating connecting portion and the connecting portion of the carrier can be screwed together, and the clamping portion of the cover can be clamped into the clamping gap created between the mating connecting portion and the connecting portion by this screw connection.

[0035] The lock body can comprise a housing that surrounds the shell, wherein the carrier and the mating connection section can be fixed in or on the housing by the fixing element. The fixing element thus initially enables the mating connection section to be connected to the connection section of the carrier. Furthermore, the same fixing element can also be used to firmly connect the mating connection section and the carrier to the housing, so that the carrier and the mating connection section are held in the housing and arranged in a predetermined manner. The parts of the locking mechanism arranged on the carrier can thus also be fixedly positioned in a predetermined manner within the lock body.Furthermore, the casing, which can be designed to be deformable, for example, can also be arranged fixed to the housing by means of the fixing element and the clamping of the casing between the connecting section of the carrier and the counter-connecting section of the lock body.

[0036] As an alternative to such a connection of the counter-connecting section to a housing of the lock body by means of the fixing element, it can also be provided in particular to form the counter-connecting section as an integral section of the housing and in one piece with the latter.

[0037] Regarding the design of the lock body outside the waterproof casing, it can be provided that the mating connection section of the lock body circumferentially surrounds the inserted locking section of the shackle with respect to its longitudinal axis. This allows the locking section inserted into the lock body to be protected from external access, and movements of the locking section within the lock body can be limited. In particular, this can counteract attempts at manipulation aimed at moving the locking section of the shackle, locked within the lock body, away from the bolt and disengaging it from the bolt in order to be able to remove the locking section from the lock body.

[0038] The lock body can have an insertion channel into which the locking portion of the shackle can be inserted, wherein the bolt projects into the insertion channel of the lock body in the locking position. In the locking position, the bolt can engage in a section of the inserted locking portion provided for this purpose and thereby secure it against detachment from the lock body. In principle, the bolt can execute a rotational or translational movement to transfer from the locking position to the release position, so that it is also possible for the bolt to project into the insertion channel even in the release position, and for the locking position to differ from the release position only in the rotational position of the bolt.

[0039] The bolt can be moved from the locking position into the release position by rotation, in particular by rotation through 90° (90 angular degrees). In particular, during such a transfer from the locking position to the release position and, if appropriate, vice versa, the bolt can exclusively execute a rotational movement without a translational movement component. Alternatively, however, it can also be provided that the bolt executes a translational (i.e. linear) and, in particular, a purely translational movement without a rotational movement component during a transfer from the release position to the locking position and, if appropriate, vice versa, wherein a rotation generated by the electric motor can be translated into a translational movement of the bolt via the drive transmission section of the locking mechanism, which can, for example, be designed as a helical ramp.

[0040] In some embodiments, the latch may have an engagement portion having a longitudinal extension with an effective length and an effective width in a plane perpendicular to the movement axis of the latch, wherein the locking portion has an elongated passage channel whose (clear) width is greater than the effective width but less than the effective length of the engagement portion of the latch. The passage channel may be open at a first end, which may correspond to a free end of the bracket. At a second end, the passage channel may open into a latch receptacle of the locking portion, the clear width of which in a direction perpendicular to the longitudinal direction of the passage channel is greater than the (clear) width of the passage channel and than the effective length of the engagement portion of the latch.In the release position of the bolt, the elongated engagement portion of the bolt is oriented longitudinally to the passage channel such that, during insertion of the locking portion into the lock body, the engagement portion engages the passage channel of the locking portion, but allows an insertion movement of the locking portion (whereby the passage channel of the locking portion receiving the engagement portion of the bolt moves along the engagement portion of the bolt). In the locking position of the bolt, however, the elongated engagement portion of the bolt is oriented transversely to the passage channel in such embodiments.As a result, the engagement portion of the bolt is blocked from escaping into the (narrower) passage channel after the locking portion has been inserted into the lock body and while the engagement portion engages in the bolt receptacle of the locking portion, so that the locking portion cannot be removed from the lock body again and the shackle is locked to the lock body.

[0041] The locking mechanism may include a sensor arranged within the waterproof casing, which is configured to detect insertion of the locking portion of the shackle into the lock body (closed position of the shackle) and generate a corresponding detection signal. The lock body may include a movable actuating element for actuating the sensor, which can be brought into operative contact with the sensor by the locking portion of the shackle inserted into the lock body, wherein the actuating element is arranged outside the casing.

[0042] In particular, the sensor can be designed to detect when the locking portion of the shackle is in a position within the lock body in which it can be locked to the lock body. This information can be used, for example, to generate a control signal for the electric motor of the electromechanical locking mechanism in order to drive the bolt to move into the locking position. By enclosing the sensor in a watertight manner within the casing, the sensor can also be protected from external influences and, in particular, from damage caused by water. By being able to actuate the sensor via the actuating element through the watertight casing, it can be ensured that the sensor can also be actuated without the risk of liquid entering or becoming dirty.By using an actuating element, a defined loading of the sensor can also be achieved without the risk of mechanical damage to the sensor due to direct contact with the locking section of the bracket.

[0043] In some embodiments, the actuating element can be designed to be driven to an actuating movement by the locking section of the shackle inserted into the lock body and to make mechanical contact with the sensor through the sleeve in order to generate the detection signal. For example, the actuating element can be designed as a rocker which is arranged in an end section of the path described by the locking section during insertion into the lock body and which can be tilted by contact with the locking section of the shackle in order to actuate the sensor. In particular, the sensor can only be actuated when the locking section is completely inserted into the lock body and arranged in the position in which locking can take place. In order to actuate the actuating element according to orIn order to bring the locking section out of contact with the sensor when the locking section is removed, the actuating element can, for example, be spring-loaded against the insertion direction of the locking section.

[0044] Furthermore, the sensor, which can be designed in particular as a mechanical contact switch, can be covered by a deformable section of the casing, so that the actuating element can mechanically contact the contact switch by deforming the casing. As an alternative to mechanical actuation of the sensor, the sensor can also be designed in such a way that a contactless active contact can be established by the actuating element when it is brought into proximity with the sensor by means of the inserted locking section.

[0045] The sensor can be connected to a control device configured to control the electric motor in response to the generated detection signal to move the bolt into the locking position. In particular, the control device can automatically control the electric motor to move the bolt into the locking position, so that a user only needs to fully insert the locking portion of the shackle into the lock body, whereupon the lock body is automatically locked without requiring any further action on the part of the user.

[0046] As for the further design of the portable U-lock, the electromechanical locking mechanism can further comprise an electrical power source disposed within the waterproof casing, wherein the casing can have a waterproof charging socket for charging the electrical power source. Thus, the electrical power source can also be disposed within the casing and protected from external influences without the opening in the casing necessary for charging the power source allowing water to enter.

[0047] It can further be provided that the lock body comprises an alarm device which is arranged within the waterproof casing and which has a loudspeaker for emitting an acoustic alarm signal, and / or that the lock body comprises a radio module which is arranged within the waterproof casing and which is designed to wirelessly receive control commands for the electric motor.

[0048] In particular, such an alarm device or such a radio module can be at least partially arranged within the casing and surrounded by the casing in a watertight manner to also protect these electrical components from damage caused by liquids or contamination. Furthermore, the loudspeaker of such an alarm device can have a watertight membrane to seal an opening formed in the casing for the output of the acoustic alarm signal generated by the loudspeaker.

[0049] A radio module can be provided, in particular, to enable a user to wirelessly control the locking mechanism and accordingly selectively adjust the latch(s) for locking the inserted locking portion(s) of the shackle. Furthermore, the radio module can also transmit information to a user, for example, to inform them whether an inserted locking portion of the shackle has been securely and correctly locked to the lock body.

[0050] In some embodiments, the casing may comprise, as the only openings, at most a charging socket for charging an electrical energy source arranged within the casing, a sound outlet opening of an alarm device, an antenna passage opening of a radio module, one or more fixing openings penetrated by a respective fixing element of the type explained, and the aforementioned casing opening for the drive transmission section. These openings in the casing may be sealed at least substantially watertight by means of their own sealing elements or in another way, in particular by force-fittingly enclosing the respective element by means of the elastically formed border of the respective opening. The number of openings in the casing can thus be minimized, wherein the respective sealing of the provided openings can counteract the ingress of water or dirt into the interior of the casing.

[0051] The invention is described below purely by way of example using an embodiment with reference to the drawings. Fig. 1 is a perspective view of a portable U-lock designed as a hinged lock with a lock body and a shackle designed as a hinged bar shackle. Fig. 2 is a cross-sectional view of the hinged lock. Fig. 3 is an enlarged cross-sectional view of the lock body of the hinged lock. Fig. 4 is a perspective view of the hinged lock with the outer shell removed. Fig. 5 is a perspective view of a mating connection section connected to the waterproof shell with the locking bar inserted, the other hinged bars of the hinged bar shackle being removed. Fig. 6 is a perspective view of the shell with the mating connection section connected. Figs. 7A and 7B are a perspective front view and a perspective rear view of the shell. Figs. 8A, 8B and 8C are perspective views of a support carrying part of the locking mechanism with a connection section with the shell removed, namely with a bolt ( Fig. 8A and 8B ) or without latch ( Fig. 8C ), Fig. 9 a perspective view of the bolt with two sealing elements designed as sealing rings for sealing the connection opening of the carrier, Fig. 10 a perspective front view of the shell with the carrier inserted into it, Fig. 11A and 11B a perspective view and a side view of the counter-connection section, and Fig. 12 a perspective view of the locking bar of the articulated bar bracket.

[0052] Fig. 1 shows a perspective view of a portable U-lock, which is designed as a hinged lock 11 and has a lock body 13 and a hinged bar shackle 17 connected thereto. The hinged bar shackle 17 comprises a plurality of pivotally connected metal hinged bars 20, which are connected at their ends to the respective adjacent hinged bars 20 by rivets 81. A first end 79 of the hinged bar shackle 17 is permanently attached to the lock body 13, while a second end of the hinged bar shackle 17 is formed by a locking portion 21 of a so-called locking bar, which, in the illustration shown, is inserted into an insertion channel 57 of the lock body 13 and can be selectively locked to the lock body 13 or released from it.

[0053] To ensure comfortable handling of the hinged lock 11, it has an outer shell 83 that encloses the lock body 13. This outer shell 83 can be made, in particular, of a plastic material to enable comfortable gripping and holding of the hinged lock 11 during operation. Likewise, the hinged rods 20 and the locking section 21 also have respective sheaths 18 made of plastic. In addition to improved and more comfortable handling, particularly when pivoting the hinged rods 20 against each other to form a loop and secure an object, these sheaths 18 can also counteract noise caused by the hinged rods 20 or the locking section 21 striking each other.

[0054] In the illustration shown, the hinged bar bracket 17 is arranged in a so-called ruler configuration, in which the longitudinal axes A of the flat hinged bars 20 and the locking section 21 (locking bar) are aligned parallel to each other. In particular, the hinged lock 11 can be conveniently and compactly stowed during transport in this configuration.

[0055] The embodiment of a portable U-lock shown here as a hinged lock 11 is for illustrative purposes only, while other designs may also be provided. For example, the U-lock may also be designed as a U-lock with a rigid and substantially U-shaped shackle, or as a cable U-lock with a wire cable shackle, or as a chain lock with a chain shackle.

[0056] Fig. 2 shows a cross section through the Fig. 1 perspective view of the hinged lock 11. In Fig. 3 This cross-sectional view is shown enlarged in the area of ​​the lock body 13. As can be seen therefrom, the articulated lock 11 has an electromechanical locking mechanism 15 arranged centrally inside the lock body 13. This locking mechanism 15 comprises an electric motor 23, which is designed to move a bolt 19 via a drive transmission section 25, optionally by rotation about the rotation axis D, into a release position or into a locking position. While the release position of the bolt 19 allows the locking section 21 to be inserted axially with respect to its longitudinal axis A into the insertion channel 57 of the lock body 13, the locking section 21, which is fully inserted into the lock body 13, can be securely locked to the lock body 13 by transferring the bolt 19 into the locking position.

[0057] In order to reliably position the electric motor 23 inside the lock body 13, it is arranged on a support section 44 of a carrier 39. Furthermore, the carrier 39 has a connecting section 43 extending perpendicular to the support section 44 and having a connecting opening 33, within the peripheral boundary 37 of which the drive transmission section 25 of the bolt 19 is mounted.

[0058] As can be seen from the Fig. 8A bis 8C As can be seen, the carrier 39 surrounds the locking mechanism 15 and is accordingly designed as an inner housing of the articulated lock 11. However, the inner housing formed by the carrier 39 is not completely closed, but rather is cage-like and, in addition to the connecting opening 33, has further openings which can facilitate the insertion of the locking mechanism, for example, during assembly of the articulated lock 11.

[0059] In order to protect the electrical components of the electromechanical locking mechanism 15 and in particular the electric motor 23 from damage caused by liquid penetrating into the interior of the lock body 13 or by dirt, the carrier 39 is surrounded by a waterproof casing 27, which is in particular elastically deformable and can be made of a plastic such as silicone, for example (cf. Fig. 2 and 3 also Fig. 5 , 6 , 7A , 7B and 10). In addition to the electric motor 23 carried by the carrying section 44 of the carrier 39, an electrical energy source 71 is also arranged within the casing 27, which provides the energy necessary to supply the electromechanical locking mechanism. To enable charging of this energy source 71, which is designed, for example, as a rechargeable battery, the casing 27 has a waterproof charging socket 73, so that the ingress of liquid into the interior of the casing 27 through this opening, which is necessary for the continuous supply of electrical energy, can be reliably prevented.

[0060] The casing 27 further surrounds a loudspeaker 75, which is part of an alarm device (not shown) and by means of which, upon detection of a break-in attempt, an acoustic signal can be sent through a sound outlet 76 to alert a user or other persons in the vicinity to the break-in attempt. To protect the interior of the casing 27 from liquids such as rainwater or dirt that may enter through the sound outlet 76, the loudspeaker 75 can have a waterproof membrane, so that the sound outlet 76 can also be sealed against water.

[0061] Furthermore, a radio module 77 is arranged within the casing 27, which can be configured, in particular, to wirelessly receive control commands for the electric motor 23. For this purpose, a user can transmit a command to the radio module 77, for example, via a mobile phone connection, a WiFi / WLAN connection, or a Bluetooth connection. In response to this command, the electric motor 23 can then move the latch 19 into the desired position by rotating it about its rotational axis D.

[0062] Furthermore, the radio module 77 can be configured to transmit information to a user about the hinged lock 11 and, for example, to inform the user when the locking section 21 is securely locked to the lock body 13. Furthermore, it can be provided that an alarm generated by an alarm device is transmitted not only acoustically via the loudspeaker 75, but also via the radio module 77. This allows a user not in the vicinity of the hinged lock 11 to be informed of such attempts and to initiate or implement the necessary measures to protect the object secured by the hinged lock 11.

[0063] A sensor 67 is arranged on the carrier 39, which is also surrounded by the casing (see also Fig. 8A and 8B). This sensor 67 is arranged on a section of the carrier 39 that is laterally offset with respect to the end of the insertion channel 57 of the lock body 13. The sensor 67 is designed to detect insertion of the locking section 21 of the articulated rod bracket 17 into the insertion channel 57. In order to actuate the sensor 67, an actuating element 69, designed as a rocker, is arranged within the last part of the path described by the locking section 21 of the articulated rod bracket 17 during insertion. This actuating element 69 can be driven by the inserted locking section 21 to perform an actuating movement in the form of a tilt in order to mechanically contact the sensor 67 in the end position of the locking section 21, in which position it can be locked to the lock body 13 by the bolt 19.

[0064] In order to enable this mechanical contact, the sensor 67 is surrounded by a deformable section 28 of the casing 27, which deforms elastically upon contact by the actuating element 69 and exerts a force on the sensor 67 that can be detected by the latter (see also Fig. 5 and 7A). Upon detecting the inserted locking portion 21, the sensor 67 can, for example, send a corresponding detection signal to a control device (not shown), which can then, in particular automatically, control the locking mechanism 15 or the electric motor 23 to move the bolt 19 into the locking position. A user therefore only has to insert the locking portion 21 completely into the insertion channel 57 of the lock body 13, whereupon it is automatically locked to the lock body 13 without any further action being required by the user. By arranging the sensor 67 within the casing 27, the sensor 67 is also protected from water or dirt.

[0065] By providing a waterproof charging socket 73 and a loudspeaker 75 with a waterproof membrane sealing the sound outlet opening 76, the risk of liquid or dirt entering through one of these openings can be counteracted. However, since it is necessary to lock the locking portion 21 of the articulated bar bracket 17, which is inserted into the lock body 13, outside the casing 27, the casing 27 also has a casing opening 29 aligned with the connecting opening 33 of the connecting portion 43 of the carrier 39. This allows the bolt 19, driven by the electric motor 23, to project into the insertion channel 57 of the lock body 13, where it can engage the inserted locking portion 21 of the articulated bar bracket 17 and lock it.

[0066] In order to also seal the cover opening 29, the cover 27 has a clamping section 41 which circumferentially surrounds the cover opening 29 and which rests on an outer side of the connecting section 43 of the carrier 39 (see also Fig. 7A , 8A , 8C and 10 ). In order to connect this clamping section 41 to the carrier 39 in a watertight manner, the clamping section 41 of the sleeve 27 is clamped between the connecting section 43 of the carrier 39 and a counter-connecting section 45 of the lock body 13.

[0067] The clamping section 41 of the casing 27 is firmly clamped between the connecting section 43 of the carrier 39 and the counter-connecting section 45 of the lock body 13 by the Fig. 11A and 11Bshown counter-connecting section 45 of the lock body 13 is firmly connected to the connecting section 43 of the carrier 39 by means of four screws 54 and in particular by means of a fixing element 53 also designed as a screw. Due to this firm connection of the connecting section 43 to the counter-connecting section 45, the clamping section 41 of the sleeve 27 is clamped in the gap formed between the connecting section 43 and the counter-connecting section 45 (clamping gap 49) and pressed over a sealing edge 42 formed on the connecting section 43 (see also Fig. 8A and 8C ). The clamping gap 49 can thus be closed by the clamping section 41 in an at least substantially water-tight manner, wherein the clamping section 41 of the sleeve 27 is designed in particular to be elastic and can be compressed by pressing it against the connecting section 43 in the clamping gap 49.

[0068] The counter-connection section 45 of the lock body 13 further comprises a counter-connection opening 47 aligned with the sleeve opening 29 and the connection opening 43, the circumferential boundary 51 of which supports the drive transmission section 25 of the bolt 19. In particular, this mounting of the bolt 19 ensures that the bolt 19 is arranged in a clearly defined position and projects into the insertion channel 57 in order to enable insertion of the locking section 21 in the release position and to securely lock it in the locking position. Furthermore, the counter-connection section 45 of the lock body 13 circumferentially surrounds the inserted locking section 21 with respect to its longitudinal axis A, so that the cage-like counter-connection section 45 forms a boundary of the insertion channel 57 (see also Fig. 5 , 11A and 11B). This limitation can in particular counteract attempts to remove the inserted and locked locking section 21 from the bolt 19 and thereby detach it from the lock body 13 without authorization.

[0069] As further shown by the Fig. 2 and 3 As can be seen, the fixing element 53 serves, in addition to connecting the mating connection section 45 to the connection section 43 of the carrier 39, also to fasten the carrier 39 and the mating connection section 45 to a housing 55 of the hinged lock 11 and thereby to arrange them fixedly therein. The housing 55 can in particular be made of metal and, for example, as a cast part, which primarily serves to protect the components arranged within it from damage caused by the action of force during a break-in attempt (see also Fig. 4 ). Since parts of the locking mechanism 15 and in particular the electric motor 23 are carried by the support section 44 of the carrier 39, the fixing of the carrier 39 within the housing 55 also ensures that the locking mechanism 15 is positioned reliably and fixedly within the housing 55.

[0070] By sealing the clamping gap 49 in a watertight manner by clamping the clamping section 41 of the casing 27 between the connecting section 43 of the carrier 39 and the mating connecting section 45 of the lock body 13, any possible penetration of water into the interior of the casing at this point can be reliably prevented. The only potential entry points for liquid into the interior of the casing 27 are the aligned openings in the connecting section 43, in the casing 27, and in the mating connecting section 45, which are necessary for the exit of the bolt 19 from the interior of the casing 27 and for its mounting.

[0071] In order to also close this entrance into the interior of the casing 27 in a watertight manner, two sealing elements 35 designed as sealing rings are arranged between the drive transmission section 25 of the bolt 19 and the circumferential boundary 37 of the connecting opening 33, so that the connecting opening 33 is essentially closed in a watertight manner by the drive transmission section 25 of the bolt 19 and the two sealing elements 35 (see also Fig. 8A , 8C , 9 and 10 ). By designing the sealing elements 35 as O-rings, they are adapted to the rotational movement about the rotation axis D performed by the bolt 19 between the release position and the locking position. This allows a permanent sealing of the connecting opening 33 in both locking positions as well as during the movement of the bolt 19.

[0072] While in the exemplary embodiment shown here only the connection openings 33 are sealed by sealing elements 35, it can equally be provided to arrange sealing elements 35 between the latch 19 and the circumferential boundary 51 of the mating connection opening 47, thereby sealing the latter. In principle, either only the connection opening 33, or alternatively only the mating connection opening 47, or both openings 33 and 47 can be sealed watertight, as here. Likewise, differently designed sealing elements can also be provided, which can, for example, be adapted to a latch that can be transferred from the locked position to the release position by a translational movement. Furthermore, it is possible to connect the sleeve 27 to the connecting section 43 of the carrier 39 in a different way than shown here, for example to glue it to it in a watertight manner.Accordingly, in particular the connecting section 43 arranged within the casing 27 can function as a bearing section and its connecting opening 33 can function as a bearing opening through which the drive transmission section 25 projects in a sealed manner.

[0073] Furthermore, it can also be provided to arrange a latch 19 provided for selectively locking an inserted locking section completely outside the casing 27 and to provide the drive transmission section 25 as a transmission element separate from the latch 19, which is designed to transmit a drive power generated by the electric motor 23 inside the casing 27 to the latch 19 arranged outside the casing 27.

[0074] The Fig. 4 bis 12 show further perspective views of components of the articulated lock 11 to further illustrate this embodiment.

[0075] Fig. 4 shows a perspective view of the hinged lock 11 with the outer shell 83 removed. Arranged within this is the housing 55, to which the first end 79 of the hinged bar bracket 17 is permanently connected by means of the associated rivet 81. Furthermore, the locking section 21 forming the second end of the hinged bar bracket 17 is inserted into the insertion channel 57 of the lock body 13 extending into the interior of the housing 55.

[0076] How Fig. 5 shows, the locking section 21, which is inserted axially with respect to its longitudinal axis A into the insertion channel 57, is circumferentially enclosed with respect to this axis A by the counter-connecting section 45, which is connected in particular by the fixing element 53 to the sleeve 27 (see also Fig. 11A and 11B). By limiting the insertion channel 57 by the counter-connecting section 45, the inserted locking section 21 can be secured against external access and against movement away from the bolt 19 projecting into the insertion channel 57.

[0077] Furthermore, Fig. 5 the arrangement of the actuating element 69, designed as a rocker, on the counter-connecting element 45 within the path described by the locking section 21 during insertion into the insertion channel 57 such that the actuating element 69 can be tilted by the locking section 21 upon complete insertion of the latter and can be brought into contact with the elastically deformable section 28 of the sleeve 27. By deforming this section 28, the sensor 67 arranged below this section 28 in the interior of the sleeve 27 can be actuated in order to be able to detect the insertion of the locking section 21 (see also Fig. 2 and Fig. 3 ).

[0078] As from Fig. 6 As can be seen, the bolt 19, which can be moved from the shown release position into a locking position by a rotational movement of 90° around the rotation axis D, also projects in the release position and thus permanently into the insertion channel 57 and the path of the inserted locking section 21 (see also Fig. 8A ). Accordingly, the release position and the locking position differ only in the rotational position of the bolt 19.

[0079] In order to lock the locking section 21 introduced into the lock body 13 by the mentioned rotation by 90° around the rotation axis D, the Fig. 9 In the release position, the bolt 19 shown has an elongated engagement portion 59 with an effective length and an effective width. In the release position, the effective length of the bolt in the direction of the longitudinal axis A of the inserted locking portion 21, which can be inserted axially with respect to its longitudinal axis into the lock body 13 (see also Fig. 1 , 2 , 3 , 4 , 5 and 12 ).

[0080] To the Fig. 12 In order to be able to insert the locking portion 21 shown into the insertion channel 57 of the lock body 13, even though the bolt 19 projects into the path described by the locking portion 21 during insertion, the locking portion 21 has a passage channel 61 which is open at a first end 63 and whose width exceeds the effective width of the engagement portion 59. Through this passage channel 61, the engagement portion 59 can be guided in the release position of the bolt 19 during insertion of the locking portion 21 into the insertion channel 57 into a bolt receptacle 65 into which the passage channel 61 opens. The design of the bolt receptacle 65 with a clear width that is greater than the effective length of the engagement section 59 makes it possible to rotate the bolt 19 and correspondingly the engagement section 59 of the bolt 19 within the bolt receptacle 65 by 90° and to transfer the bolt 19 into the locking position.In this, the engagement portion 59 is secured against escaping into the passage channel 61 of the locking portion 21, so that the locking portion 21 is locked to the lock body 13 by the engagement of the bolt 19 in the bolt receptacle 65.

[0081] The Fig. 7A and 7B show perspective views of the casing 27, which has the waterproof charging socket 73 at a rear end and the sound outlet opening 76 at a bottom. At its front end, the casing 27 has the casing opening 19, which is circumferentially surrounded by the clamping section 41.

[0082] The Fig. 8A bis 8C show perspective views of the carrier 39, within which the locking mechanism 15 is at least partially arranged and which is enclosed by the casing 27 (see also Fig. 10 ). How Fig. 8C shows, the connecting section 43 of the carrier 39 is arranged on the side facing the casing opening 29 and has the connecting opening 33, on the circumferential boundary 37 of which the drive connecting section 25 formed in one piece with the bolt 19 is mounted.

[0083] The carrier 39 and the elements of the locking mechanism 15 carried by its carrying section 44 are arranged within the casing 28 (cf. Fig. 10 ). In order to connect the clamping section 41 of the cover 27 in a watertight manner with the connecting section 43 of the carrier 39, the Fig. 11A and 11B The counter-connecting section 45 of the lock body 13 shown is connected to the carrier 39 by means of the screws 54 and the fixing element 53 designed as a screw. In this case, the clamping section 41 is compressed in the clamping gap 49.

[0084] In order to also open the connecting opening 33 (cf. Fig. 8C ) watertight, the sealing elements 35 are provided (cf. Fig. 9 ). The connecting opening 33 is closed and sealed watertight by the drive transmission section 25 of the bolt 19 and the two sealing elements 35, so that the ingress of water into the interior of the casing 27 through the connecting opening 33 can be counteracted.

[0085] Since the casing 27 has only a minimum number of necessary openings and these are reliably sealed, the components arranged inside the casing 27 and in particular the electric motor 23 can be protected from damage by ingress of liquid or by contamination. Bezugszeichenliste

[0086] 11 Portable U-lock, hinged lock 13 Lock body 15 Locking mechanism 17 Shackle, hinged bar shackle 18 Sheath 19 Latch 20 Hinge bar 21 Locking section 23 Electric motor 25 Drive transmission section 27 Shell 28 Deformable shell section 29 Shell opening 33 Bearing opening, connection opening 35 Sealing element 37 Circumferential boundary of the bearing opening, circumferential boundary of the connection opening 39 Carrier 41 Clamping section of the shell 42 Sealing edge 43 Bearing section, connection section of the carrier 44 Supporting section of the carrier 45 Counter-connection section 47 Counter-connection opening 49 Clamping gap 51 Circumferential boundary of the counter-connection opening 53 Fixing element 54 Screw 55 Housing 57 Insertion channel 59 Engagement section 61 Passing channel 63First end of the passage channel 65Latch receptacle 67Sensor 69Actuator 71Electrical energy source 73Charging socket 74Charging module 75Loudspeaker 76Sound outlet opening 77Radio module 79First end of the hinged bar bracket 81Rivet 83Outer shell ALongitudinal axis of the locking section DRotation axis of the bolt

Claims

1. A portable hoop lock (11) comprising a lock body (13) which accommodates an electromechanical locking mechanism (15); and comprising a rigid or flexible hoop (17) that has at least one locking section (21) which can be selectively introduced into the lock body (13) or released from the lock body (13), wherein the locking mechanism (15) comprises at least one latch (19) and an electric motor (23) for driving the latch (19), wherein the latch (19) is configured to lock the locking section (21) of the hoop (17) introduced into the lock body (13) to the lock body (13) in a locking position and to release the locking section (21) of the hoop (17) for a removal from the lock body (13) in a release position, wherein the electric motor (23) is configured to selectively move the latch (19) from the locking position into the release position via a drive transmission section (25) of the locking mechanism (15), and wherein the lock body (13) has a watertight cover (27) which surrounds the electric motor (23), characterized in that the cover (27) is flexible, in particular elastically deformable, and is for this purpose designed as a watertight shaped part and is produced from plastic, and in that the cover (27) has a cover opening (29) through which the drive transmission section (25) of the locking mechanism (15) projects in a sealed manner.

2. A portable hoop lock (11) according to claim 1, wherein the lock body (13) has a support section (43) having a support opening (33) in which the drive transmission section (25) of the locking mechanism (15) is movably supported and which is aligned with the cover opening (29), wherein the cover (27) is held sealed in an at least substantially water-impermeable manner at the support section (43), and wherein at least one sealing element (35) is provided that is arranged between the drive transmission section (25) and a peripheral boundary (37) of the support opening (33), wherein the support opening (33) is closed and sealed in an at least substantially water-impermeable manner by the drive transmission section (25) and the sealing element (35).

3. A portable hoop lock (11) according to claim 1, wherein the lock body (13) comprises a carrier (39) which carries at least a part of the locking mechanism (15) and which is surrounded by the cover (27), wherein the carrier (39) carries the electric motor (23) and movably supports the drive transmission section (25).

4. A portable hoop lock (11) according to claim 3, wherein the cover (27) has a clamping section (41) which peripherally surrounds the cover opening (29), wherein the carrier (39) has a connection section (43) which contacts an inner side of the clamping section (41) of the cover (27) and which has a connection opening (33), and wherein the lock body (13) has a counter connection section (45) which contacts an outer side of the clamping section (41) of the cover (27) and which has a counter connection opening (47), wherein the clamping section (41) of the cover (27) is arranged between the connection section (43) of the carrier (39) and the counter connection section (45) of the lock body (13), and wherein the drive transmission section (25) of the locking mechanism (15) projects through the connection opening (33) of the carrier, the cover opening (29), and the counter connection opening (47) of the lock body (13).

5. A portable hoop lock (11) according to claim 4, wherein the clamping section (41) of the cover (27) is arranged in a clamping gap (49) which is formed between the connection section (43) of the carrier (39) and the counter connection section (45) of the lock body (13), wherein the counter connection section (45) of the lock body (13) and the connection section (43) of the carrier (39) are fixed to one another in such a force-fitting manner that the clamping section (41) of the cover (27) is clamped in the clamping gap (49) and the clamping gap (49) is sealed in an at least substantially water-impermeable manner by the clamping section (41) of the cover (27).

6. A portable hoop lock (11) according to claim 4 or claim 5, wherein the lock body (13) has at least one sealing element (35) which is arranged between the drive transmission section (25) of the locking mechanism (15) and a peripheral boundary (37) of the connection opening (33) of the connection section (43) of the carrier (39) and / or a peripheral boundary (51) of the counter connection opening (47) of the counter connection section (45) of the lock body (13), wherein the connection opening (33) and / or the counter connection opening (47) is / are closed and sealed in an at least substantially water-impermeable manner by the drive transmission section (25) and the sealing element (35).

7. A portable hoop lock (11) according to any one of the claims 4 to 6, wherein the counter connection section (45) of the lock body (13) is fixed to the connection section (43) of the carrier (39) by means of a fixing element (53); wherein the lock body (13) preferably comprises a housing (55) which surrounds the cover (27), wherein the carrier (39) and the counter connection section (45) are fixed in or at the housing (55) by the fixing element (53).

8. A portable hoop lock (11) according to any one of the claims 4 to 7, wherein the counter connection section (45) of the lock body (13) peripherally surrounds the introduced locking section (21) of the hoop (17) with respect to a longitudinal axis (A) of said locking section (21); and / or wherein the drive transmission section (25) of the locking mechanism (15) is an integral section of the latch (19) or a separate transmission element; and / or wherein the lock body (13) has an introduction passage (57) into which the locking section (21) of the hoop (17) can be introduced, wherein the latch (19) projects into the introduction passage (57) of the lock body in the locking position.

9. A portable hoop lock (11) according to any one of the preceding claims, wherein the latch (19) can be moved from the locking position into the release position by a rotation, in particular by a rotation about 90°.

10. A portable hoop lock (11) according to claim 9, wherein the latch (19) has an engagement section (59) which has a longitudinal extent having an effective length and an effective width in a plane perpendicular to a movement axis of the latch (19), wherein the locking section (21) has an elongate passage channel (61) whose width is greater than the effective width, but less than the effective length of the engagement section (59) of the latch (19), wherein the passage channel (61) is open at a first end (63) and leads into a latch receiver (65) of the locking section (21) at a second end, the clear width of said latch receiver (65) in a direction perpendicular to the longitudinal direction of the passage channel (61) being greater than the width of the passage channel (61) and the effective length of the engagement section (59) of the latch (19), wherein, in the release position of the latch (19), the elongate engagement section (59) of the latch (19) is oriented longitudinally to the passage channel (61) such that, during an introduction of the locking section (21) into the lock body (13), the engagement section (59) indeed engages into the passage channel (61) of the locking section (21), but allows an introduction movement of the locking section (21), and wherein, in the locking position of the latch (19), the elongate engagement section (59) of the latch (19) is oriented transversely to the passage channel (61) such that - after the locking section (21) has been introduced into the lock body (13) and while the engagement section (59) engages into the latch receiver (65) of the locking section (21) - the engagement section (59) is blocked against escaping into the passage channel (61) such that the locking section (21) is locked to the lock body (13).

11. A portable hoop lock (11) according to any one of the preceding claims, wherein the locking mechanism (15) has a sensor (67) which is arranged within the cover (27) and which is configured to detect an introduction of the locking section (21) of the hoop (17) into the lock body (13) and to generate a corresponding detection signal, wherein the lock body (13) has a movable actuation element (69) for actuating the sensor (67) that can be brought into activating contact with the sensor (67) by the locking section (21) of the hoop (17) introduced into the lock body (13), wherein the actuation element (69) is arranged outside the cover (27).

12. A portable hoop lock (11) according to claim 11, wherein the actuation element (69) is configured to be driven to perform an actuation movement by the locking section (21) of the hoop (17) introduced into the lock body (13) and to mechanically contact the sensor (67) through the cover (27) in order to bring about the generation of the detection signal.

13. A portable hoop lock (11) according to claim 11 or 12, wherein the sensor (67) is connected to a control device which is configured to control the electric motor (23) to move the latch (19) into the locking position in response to the generated detection signal.

14. A portable hoop lock (11) according to any one of the preceding claims, wherein the locking mechanism (15) comprises an electrical energy source (71) which is arranged within the cover (27), wherein the cover (27) has a watertight charging socket (73) for charging the electrical energy source (71); and / or wherein the lock body (13) comprises an alarm device for generating an acoustic alarm signal which is at least partly arranged within the cover (27) and which comprises a loudspeaker (75) for outputting the alarm signal; and / or wherein the lock body (13) comprises a radio module (77) which is at least partly arranged within the cover (27) and which is configured to wirelessly receive control commands for the electric motor (23); and / or wherein the portable hoop lock is configured as a joint lock (11) and the hoop is configured as a jointed bar hoop (17) which has a plurality of jointed bars (20) pivotably connected to one another, wherein a first end (79) of the jointed bar hoop (17) is permanently fastened to the lock body (13) and the locking section (21) forms a free second end of the jointed bar hoop (17) that can be selectively locked to or released from the lock body (13).

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