EP2868850B1 - Padlock - Google Patents

Description

The present invention relates to a padlock with a lock body and a bracket, which is held displaceably on the lock body and having a first and a second leg. The padlock further comprises a rotary latch, which is rotatable about at least between a release position and a locking position about an axis of rotation, and at least one blocking element. The lock body comprises a first and a second receiving channel for receiving the first and second legs of the bracket and a receiving opening for interchangeable receiving a lock cylinder which is asymmetrically shaped in cross section, wherein a cylinder housing of the lock cylinder from a circular cross section of a core receiving portion into an elongated flange portion passes, wherein the lock cylinder has a rotatable and drive-actively coupled or coupled with the rotary latch locking lug. The rotary latch comprises at least one drive section which is adapted, in the locking position of the rotary bolt, to urge the blocking element radially outward in the direction of a locking recess of the first leg with respect to the axis of rotation.

In such a padlock, the lock cylinder is actuated by a matching key to unlock. As a result, a cylinder core of the lock cylinder is rotated, the rotational movement is transmitted via the locking lug to the rotary latch. The closing nose of a lock cylinder is a rotary drive element which is eccentric with respect to the axis of rotation. The locking lug can in a variable angular position on the cylinder core of the lock cylinder be attached. In the mounted state of the lock cylinder, however, the closing nose is non-rotatably connected to the cylinder core.

In the release position of the rotary latch, the bracket of the padlock can be opened, i. at least one leg of the bracket can be removed from the associated receiving channel of the lock body. In the locking position of the rotary bolt, however, both legs of the bracket are fixed in the associated receiving channels of the lock body.

For some applications, it is desirable that the lock cylinder of the padlock be replaced by the user. For example, due to the interchangeability of the lock cylinder, the padlock can be easily integrated into existing locking systems. Thus, a lock cylinder can be installed with a locking system associated closure in the padlock, whereby a key of the locking system can also be used for the padlock and thus results in a wide range of uses for the padlock. The padlock can be optionally equipped with a variety of lock cylinders - for example, from different manufacturers. The padlock can be offered for this purpose without its own lock cylinder, i. for retrofitting with its own lock cylinder by the user.

The locking cylinders used in such a padlock are usually standardized. This means that the padlock, at least in terms of the size of the associated receiving opening must be dimensioned so that it can accommodate the lock cylinder. In addition, it is possible to combine a conventional locking mechanism of a padlock with a replaceable lock cylinder. Known such padlocks, however, are undesirably large and / or material and labor intensive in the production.

A padlock according to the preamble of claim 1 is known from GB 2 424 670 A known. The US 2,141,748 and the EP 0 971 087 A1 describe padlocks, in which the bracket is double lockable. The EP 1 460 212 A2 discloses a padlock in which a standard half-lock cylinder according to DIN 18252 can be used. Finally, out of the WO 2006/032416 A1 a padlock with a replaceable standard-half cylinder according to DIN 18252 known.

It is an object of the invention to provide a padlock, which is characterized by compact dimensions, cost-effective production and high security against unauthorized opening.

This object is achieved by a padlock with the features of claim 1 and in particular in that the rotary latch further comprises a blocking portion which is adapted to engage in the locking position of the rotary latch with respect to the axis of rotation in the tangential direction in an associated locking recess of the second leg.

The bracket is thus secured in the locking position of the rotary bolt by two different locking methods in the lock body, namely on the one hand by the radially outwardly in the direction of the locking recess of the first leg crowded (at least one) blocking element. On the other hand, a blocking portion of the rotary latch in the tangential direction, i. along the direction of rotation of the rotary latch, brought into engagement with the locking recess of the second leg of the bracket. Advantageously, the rotation of the rotary bolt, which is necessary in any case, is used for additional locking of the bracket, whereby a double lock is achieved (i.e., locking of both arm legs). In addition, a conventional second blocking element can be saved in this case.

In addition, an eccentric arrangement of the axis of rotation of the rotary latch and / or an eccentric arrangement of the axis of rotation of the cylinder core of the lock cylinder in the lock body is possible by the use of the blocking portion of the rotary latch (in particular when the rotary latch engages over the blocking section directly into the locking recess of the second stirrup leg). The axis of rotation of the rotary bolt and / or the cylinder core may be located near the second leg of the bracket, so near an axis of the corresponding receiving channel of the lock body, whereby the lock cylinder better in the lock body can be accommodated and thus the dimensions of the lock body can be reduced.

The lock body can therefore be made smaller, in particular, because the lock cylinder only has to maintain a minimum distance to the axes of the receiving channels and thus to the legs of the bracket. In comparison to a centrally located between the receiving channels axis of rotation of the rotary latch and / or the cylinder core thus eliminates unused space in the lock body, whereby the padlock invention can be made more compact.

Advantageously, due to the compact design of the padlock according to the invention for the end user the usual appearance of a conventional padlock, since the lock body (i.e., the lock housing) can be made comparatively slim and the key insertion can be arranged as usual on the underside of the lock body.

According to the slim design results in a reduced material cost for the lock body, which is associated with low production costs.

The production process of the padlock can therefore also be carried out inexpensively, since the production of the receiving channels for the stirrup legs and the receiving opening for the lock cylinder, the introduction of only bores (ie straight holes of constant diameter) is required and undercuts (ie lateral recesses in the holes) can be avoided with the need of using special tools.

In addition, the padlock is through the use of two different locking methods and directions of locking the two stirrup legs particularly well protected against unauthorized opening (eg forcible pulling out of the bracket from the lock body, manipulation of the locking mechanism). For example, a method for violent radial retraction of the blocking element is not necessarily suitable for overcoming the tangentially guided blocking portion of the rotary latch.

Advantageously, the blocking portion of the rotary latch can engage directly in the locking recess of the second bracket leg. In this way, no mechanism connected between the rotary latch and the blocking section is needed, which in turn would increase the padlock.

For actuating the blocking element, the drive section forms a curved path deviating from a circular path for displacing the blocking element. Through the curved path, the blocking element can be moved radially outwardly during rotation of the rotary latch and thus engage in the locking recess of the first leg. When trying to remove the bracket in the locking position of the lock body, thus blocking the blocking element in the locking recess. At the same time, the blocking portion of the rotary latch lies flat against the associated locking recess, whereby the blocking element and the blocking section on both legs prevent the removal of the bracket. In particular, compared to the use of thin locking plates, the stability of the locking mechanism is increased by the combination of blocking element and blocking section.

Particularly well, the padlock according to the invention for exchangeable receiving commercially available lock cylinders with a rotatable locking lug, which is drivingly coupled to the rotary latch of the padlock. As a lock cylinder can be used in particular a commercial semi-cylinder, since the lock cylinder is already accessible only on one side anyway when used in a padlock. For example, without the need mechanical adjustments commercially available profile cylinder are used, which are standardized according to DIN 18252 and the cylinder housing having a core receiving portion and a flange portion.

The insertion of the lock cylinder in the associated receiving opening of the lock body takes place from the side facing away from the bracket of the lock body, i. from the bottom in the position of use of the padlock. In general, the area of the bracket is referred to as the top side and the area facing away from the bracket as the bottom of the padlock.

The rotary latch may in particular be arranged within the receiving opening for the lock cylinder, that the rotary latch during insertion of the lock cylinder in the lock body forms a stop for the lock cylinder and the rotary latch thus in the axial direction between the upper-side boundary of the receiving opening and the lock cylinder (and / or an adapter piece, as will be explained below) is caught. By this arrangement of the rotary latch at the longitudinal end of the lock cylinder a simple replacement of the lock cylinder is possible because it can be removed or used on the underside of the lock body. When inserting and removing the rotary latch and the blocking element can remain in the lock body.

Advantageous embodiments of the invention are set forth in the description, the dependent claims and the drawings.

According to an advantageous embodiment, the axis of rotation of the rotary latch and / or the axis of rotation of the locking lug (or the cylinder core) of the locking cylinder received in the receiving opening eccentrically with respect to the first and the second receiving channel of the lock body (for the two hanger arms), ie, the respective axis of rotation is not located exactly in the middle between the two recording channels. The axis of rotation of the rotary latch can thus be closer to the second leg of the bracket, whereby the radius of the rotary latch can be reduced. Thanks to the reduced turning bolt, the padlock can again be designed to save space and material. If the axis of rotation of the locking nose or the cylinder core of the lock cylinder is closer to the second leg of the bracket, the lock cylinder can be better accommodated in the lock body.

According to a further advantageous embodiment, the axis of rotation of the rotary latch coincides with the axis of rotation of the closing nose (or of the cylinder core) of the lock cylinder accommodated in the receiving opening. In this way, during the insertion of the lock cylinder, the locking lug can be coupled to the rotary latch without complicated mechanics, e.g. by a direct positive connection. As a result, both the rotary latch and the lock cylinder (cylinder core) are off-center and thus particularly close to the second leg, whereby unnecessary space consumption is avoided.

According to a preferred embodiment, the drive portion and the blocking portion are integrally formed on the rotary latch. In particular, the drive portion and the blocking portion may thus be integrally formed with the rotary latch, whereby a rotary movement of the rotary latch is always transmitted to both the blocking element and the blocking and the rotary latch can engage directly in the associated locking recess of the second stirrup leg on the blocking section. In this way, a secure and uniform locking of the padlock is ensured by means of the synchronously moving to the blocking portion blocking element.

Alternatively, however, the blocking portion may in principle also be formed as a separate part, which is rigidly connected or with torsional backlash with the rotary latch. For example, the blocking portion may be made of hardened metal whereas the rotary latch can be made from a different material (eg plastic) to save weight.

According to a further advantageous embodiment, the blocking element is elongated. In particular, such elongated extension of the blocking element may be provided along the direction of locking movement of the blocking element (i.e., in the radial direction with respect to the axis of rotation of the rotary latch). By the elongated blocking element of the conditional by the eccentric arrangement of the axis of rotation of the rotary latch distance between the drive portion of the rotary latch and the locking recess of the first leg is bridged.

Advantageously, the blocking element has at least one rounded, preferably circular, end. When trying to forcibly remove the strap from the lock body thus the circular end is keyed to the locking recess of the first stirrup leg, resulting in a circular distribution a favorable force distribution on an enlarged surface of the blocking element and the locking recess. The circular or rounded end thus complicates a shearing of the end of the blocking element. In this way, the force required to break the padlock can be greatly increased.

In particular, the shape of the elongate blocking element may be formed by two hemispheres connected by a cylindrical connecting portion.

Alternatively, at least two blocking balls can be provided as a blocking element, which are arranged one behind the other, wherein the force of the drive portion of the rotary latch is transmitted from the first to the second blocking ball. According to a preferred embodiment, the blocking element and the blocking portion of the rotary bolt with respect to the axis of rotation of the rotary latch are arranged offset relative to each other. Seen along the axis of rotation, the blocking element and the blocking section can thus be arranged at different heights. For example, if the blocking portion of the rotary latch (and thus the associated locking recess of the second leg of the bracket when it is completely inserted into the lock body) in the lock body below, so when opening the bracket (in the release position of the rotary latch) only the locking recess of the first Leg are removed from the lock body, whereas the locking recess of the second leg remains within the lock body.

Advantageously, the rotary latch comprises at least a first and second plane, which are each formed substantially disc-shaped and are arranged one above the other along the axis of rotation of the rotary latch. The rotary latch can thus be constructed tower-like, the centers of the discs are each on the axis of rotation of the rotary latch. Each of said planes may in particular extend perpendicular to the axis of rotation of the rotary latch.

The first plane preferably comprises the drive section and the second plane comprises the blocking section of the rotary latch. Due to the arrangement of blocking section and drive section on different planes, they can be offset relative to one another with respect to the axis of rotation. In addition, the mechanical load of the rotary latch can be distributed to the different levels.

The second level may include, in addition to the blocking portion, a release portion and, optionally, a mounting portion. In the region of the release portion, the second level of the rotary latch may have a smaller radius than in the region of the blocking portion, wherein by turning the rotary latch in the release position of the release portion of the rotary latch in the Area of the second leg can be brought. As a result, no engagement of the release portion takes place in the locking recess of the second leg and the bracket can be partially removed from the lock body until, for example, a securing portion of the bracket rests flat against the release portion and thus prevents complete removal of the bracket from the lock body.

If the rotary latch is rotated further into a mounting position, the mounting portion of the rotary latch can be brought into the region of the second stirrup leg, wherein in the region of the mounting portion, the radius of the second plane is even lower than in the region of the release portion. As a result, the securing portion of the bracket can be moved past the mounting portion and the bracket completely removed from the lock body. Also can be introduced in this mounting position of the rotary latch of the bracket in the production of the padlock in the lock body.

According to a preferred embodiment, the rotary latch between the first and the second plane comprises a third plane in which the rotary latch can be mounted in the radial and / or axial direction on the lock cylinder. In this case, the first and the third level can be hollow and each provided with a circumferential recess. From the circumferential recess, for example, the flange portion of the lock cylinder protrude. At the same time, the rotary latch can form a stop for the lock cylinder in the axial direction.

The mentioned locking cylinder does not necessarily have to be part of the padlock, namely if the padlock is intended to be retrofitted with a commercially available lock cylinder (eg an existing locking system). According to a preferred embodiment, however, the lock cylinder is part of the padlock. In this embodiment, the Lock cylinder comprise a cylinder housing rotatably mounted in a cylinder housing, with which said locking lug is rotatably connected.

Preferably, the locking lug of the lock cylinder protrudes into a recess of the rotary latch, wherein between the locking lug and the rotary latch preferably consists of a backlash. In particular, the locking lug can protrude into the said circumferential recess of the second level and come into contact with the side walls of the recess during a rotational movement of the closing lug in order to transmit a rotary movement of the locking lug to the rotary latch. In other words, the two lateral boundaries of the circumferential recess serve as stop edges. Due to the backlash, the locking lug of the lock cylinder when inserting the lock cylinder in the lock body can be easily inserted into the circumferential recess of the rotary latch and / or placed in a flush with the lock cylinder angular position to insert the lock cylinder in the lock body or remove from the lock body can.

Preferably, an adapter piece is arranged in the receiving opening of the lock body between the lock cylinder and the lock body, which forms a rotation stop for the locking lug of the lock cylinder in the release position and / or in the locking position of the rotary latch. A rotation of the rotary latch in an undesired position can thus be prevented by the adapter piece. At the same time, the adapter piece can at least partially adapt the contour of the receiving opening of the lock body to the contour of the lock cylinder, and the adapter piece can also hold the rotary latch and the blocking element within the receiving opening of the lock body. The adapter piece can be fixed, for example by means of a pin or a screw or by a press fit in the receiving opening of the lock body. Preferably, the adapter piece is permanently secured in the lock body. Alternatively, however, a releasable attachment may be provided in the lock body be, whereby the padlock can be adapted by replacing the adapter piece to different lock cylinder.

According to a further advantageous embodiment, the receiving channels of the lock body (for the two bar arms) extend parallel to the axis of rotation of the rotary latch. As a result, the lock cylinder can be inserted from the underside of the padlock in this, resulting in the usual structure with a arranged at the bottom of the housing Schlüsseleinführöffnung for a user of the padlock.

According to a further advantageous embodiment, a through hole for a forend screw is provided in the lock body, by means of which the lock cylinder in the receiving opening of the lock body is securable. Thus, the lock cylinder is additionally secured by the forend screw against pulling out of the lock body.

Preferably, the lock cylinder is a DIN 18252 standardized profile cylinder, which comprises a cylinder housing with a hollow cylindrical core receiving portion for rotatably supporting the cylinder core and a radially projecting from the core receiving portion flange portion may be provided in the pin tumblers. The lock cylinder according to the invention in cross-section asymmetric (ie, not circular) be formed, the cylinder housing, starting from a circular cross-section of the core receiving portion merges into an elongated flange portion. When the cylinder housing is inserted in the padlock (ie, in the associated receiving opening of the lock body), the core receiving portion of the cylinder housing can be closer to the axis of the second receiving channel of the lock body (for the second leg of the bracket), wherein the flange portion of the cylinder housing extends from the core receiving portion in the direction of the axis of the first receiving channel (for the first leg).

In particular, it is possible due to the inventive design of the rotary latch that a plane of symmetry of the lock cylinder (in particular the plane of symmetry of a profile cylinder, which extends along the axis of rotation of the cylinder core through the core receiving portion and the flange portion) with the center plane of the lock body, which through the axes of the two receiving channels of the lock body is clamped for the bar arms, coincides or runs parallel thereto. For this purpose, in particular a plane of symmetry of said receiving opening of the lock body coincide with the center plane of the lock body or run parallel thereto. Thus, the usual appearance of a conventional padlock in which the keyway of the lock cylinder (i.e., the slot-shaped key insertion opening of the cylinder core) extends along the center plane of the lock body or parallel thereto can be realized for the end user.

The invention will now be described by way of example only with reference to the drawings. Identical or similar elements are identified therein with the same reference numerals.

Fig. 1

ein erfindungsgemäßes Hangschloss in perspektivischer Ansicht;

Fig. 2

das Hangschloss von Fig. 1 in Explosionsansicht;

Fig. 3

einen Drehriegel in (a) perspektivischer Ansicht von unten und (b) Ansicht von oben;

Fig. 4

einen Schlosskörper in perspektivischer Ansicht von unten;

Fig. 5

ein Adapterstück in perspektivischer Ansicht; und

Fig. 6

das Hangschloss von Fig. 1 im montierten Zustand ohne Schlosskörper in (a) einer ersten perspektivischen Seitenansicht und (b) einer zweiten perspektivischen Seitenansicht.

Show it:

Fig. 1

an inventive padlock in perspective view;

Fig. 2

the padlock of Fig. 1 in exploded view;

Fig. 3

a rotary bolt in (a) perspective view from below and (b) top view;

Fig. 4

a lock body in a perspective view from below;

Fig. 5

an adapter piece in a perspective view; and

Fig. 6

the padlock of Fig. 1 in the mounted state without lock body in (a) a first perspective side view and (b) a second perspective side view.

This in Fig. 1 The padlock 10 shown includes a lock body 12 and a bracket 14. The bracket 14 is U-shaped from a cylindrical material and includes a first leg 16 and a second leg 18. The legs 16, 18 are each formed straight.

The padlock 10 is by means of a key 20 from a locked state to an unlocked state and vice versa. The key 20 is inserted into a key insertion opening on an underside of the lock body 12, which is opposite to the bracket 14.

In Fig. 2 is the padlock 10 of Fig. 1 shown in exploded view. In the bracket 14, a first locking recess 22 is provided in the first leg 16, which is arranged at a lower end of the first leg 16 and is formed in the manner of a cylinder segment or a spherical segment.

The bracket 14 is formed throughout from a substantially circular cross-section.

The second leg 18 is designed to be longer than the first leg 16 and, in a region situated below the end of the first leg 16, comprises a second locking recess 24, which is formed by removal of a cuboid-shaped area. At the second locking recess 24 includes below a Release recess 26, which is formed by a first leg 16 facing the concave recess of the second leg 18.

Below the release recess 26 is followed by a rotary portion 28 which has a circular cross section, which is reduced in size compared to the usual cross section of the bracket 14, i. the rotary section 28 forms an annular groove.

The conclusion of the second leg 18 forms a securing portion 30 with a round cross section, which corresponds to the usual cross section of the bracket 14.

In the locked state of the padlock 10, the first leg 16 extends into a first receiving channel 32 and the second leg 18 into a second receiving channel 34 of the lock body 12. The receiving channels 32, 34 can be seen outside the lock body 12 as upper-side openings. The receiving channels 32, 34 are adapted to the cross section of the bracket 14.

The lock body 12 is more detailed in FIG Fig. 4 shown. The lock body 12 has a substantially rectangular cross-section, wherein the longitudinal sides are curved outwardly. From below, a receiving opening 36 is introduced into the lock body 12. The receiving opening 36 tapers stepwise upwards. On a side surface, a through hole 38 is provided for a forend screw.

In the receiving opening 36 is a rotary latch 40 ( Fig. 2 ), which is in direct contact with a blocking element 42. The blocking member 42 has an elongated shape formed by two hemispherical portions 44 and a cylindrical portion 46 connecting the hemispherical portions 44.

The rotary latch 40 is constructed tower-like from three levels ( Fig. 3a ). In the installed state, a first plane 48 faces the U-shaped region of the bracket 14 and thus lies above. A second level 50 forms the lower end of the rotary latch 40. A third level 52 is disposed between the first and second levels 48, 50.

All planes 48, 50, 52 have - except for circumferential recesses and / or recesses - a substantially cylindrical outer surface, wherein the radius of the planes increases from top to bottom. That is, the radius of the first plane 48 is smaller than that of the third plane 52. Again, the radius of the third plane 52 is smaller than that of the second plane 50 (FIG. Fig. 3b ).

In the first level 48, i. The upper level, a cylindrical recess is introduced, which serves as a drive portion 54 together with the circumferentially adjacent area.

The third level 52, i. the middle plane, is formed as a hollow cylinder, wherein a lateral surface is cut in an angular range of about 70 °. This recess 55 is bounded by two stop surfaces 56a, 56b.

The second plane 50, ie the lower plane, comprises a recess 57 of its lateral surface of approximately 20 °, wherein the recess 57 defining drive surfaces 58a, 58b are formed by flattening tapered. An area of the second plane with the maximum radius defines a blocking portion 60 to which is circumferentially disposed a releasing portion 62 having a smaller radius than the blocking portion 60. In turn, circumferentially adjacent to the release portion 62, a partially cylindrical recess in the second plane 50 is provided, which forms a mounting portion 64. The mounting portion 64 continues in the third (ie middle) plane 52.

Below the rotary latch 40, a lock cylinder 66 is arranged in the form of a commercially available semi-profile cylinder ( Fig. 2 ). The lock cylinder 66 has a rotatable cylinder core 68, which is mounted in a core receiving portion 70 and is rotatable about an axis of rotation. Perpendicular to the axis of rotation extends a flange 72, in which pin tumblers 74 are arranged. In the flange portion 72, a threaded hole 76 for a forend screw (not shown) is provided. The core receiving portion 70 and the flange portion 72 together form a cylinder housing 77 of the lock cylinder 66 (FIGS. Fig. 2 ).

At the longitudinal end of the cylinder core 68 (upper end in the position of use of the assembled lock cylinder 66) is arranged with the cylinder core 68 rotatably connected locking lug 78. The closing nose 78 is thus rotatable together with the cylinder core 68 about its axis of rotation. The lock cylinder 66 further includes an integral bearing and cover portion 80 at its rear end.

The lock cylinder 66 is held in an adapter piece 82 ( Fig. 5 ) whose outer dimensions are adapted to the receiving opening 36. The adapter piece 82 comprises an inner recess 84 adapted to the lock cylinder 66, and on its front side (upper side in the position of use of the mounted adapter piece 82) a support surface 86 which abruptly drops on two stop surfaces 88a, 88b. In addition, a partially cylindrical channel recess 90, which runs parallel to the direction of the axis of rotation of the cylinder core 68, is provided in the outer circumferential surface of the adapter piece 82. The adapter piece 82 has a circumferential interruption 92, which serves to receive the flange portion 72 of the lock cylinder 66.

Fig. 6 shows the mounted padlock 10 in the locked position. The adapter piece 82 is by means of a transversely extending pin (not shown) in Lock body 12 ( Fig. 1 and 2 permanently attached. In the assembled state, the rotary latch 40 is located with a lower end face of the second (ie lower) level 50 on the support surface 86 of the adapter piece 82. In addition, the bearing and closing portion 80 of the lock cylinder 66 extends through the recess 55 of the third (ie middle) level 52 in the third plane 52 of the rotary latch 40 into it. In this case, the rotary latch 40 on the core receiving portion 70 and at this purpose provided in extension bearing and end portion 80 of the lock cylinder 66 about an axis which zbw said axis of rotation of the cylinder core 68. the locking lug 78 corresponds, rotatably mounted.

From the recess 57 of the second plane 50 protrudes the locking lug 78, whose rotational movement is limited by the stop surfaces 88a, 88b of the adapter piece 82 ( Fig. 6a ).

The lock cylinder 66 is held in the adapter piece 82, wherein the flange portion 72 of the lock cylinder 66 projects through the circumferential interruption 92 from the adapter piece 82 radially to the axis of rotation of the rotary latch 40. The adapter piece 82 and the lock cylinder 66 form at their lower end a flush termination, which coincides with the underside of the lock body 12.

The first leg 16 of the bracket 14 is formed in the direction of the axis of rotation of the rotary latch 40 is substantially aligned with a radial end of the flange portion 72 of the lock cylinder 66.

To replace the lock cylinder 66, the forend screw is first removed from the lock body 12. Subsequently, the cylinder core 70 is rotated by the key 20 such that the closing lug 78 is aligned flush with the flange portion 72 of the lock cylinder 66. In order to avoid a rotation of the rotary latch 40, the recess 57 of the second level 50 of the rotary latch 40 is slightly larger than the closing lug 78 is formed so that a slight torsional backlash of the rotary latch 40 relative to the locking lug 78 results. In the flush position of the locking lug 78, the lock cylinder 66 can be pulled out of the lock body 12 by means of the key 20.

Upon insertion of the lock cylinder 66 (or other lock cylinder 66) into the receiving opening 36 of the lock body 12 (i.e., the adapter piece 82), the lock tab 78 is again aligned flush with the flange portion 72 of the lock cylinder 66. The lock cylinder 66 is inserted so far into the lock body 12 until the bearing and end portion 80 of the lock cylinder 66 rests against the rotary latch 40. The rotary latch 40 is thus in the axial extension of the cylinder core 70. Subsequently, the lock cylinder 66 is secured by means of the forend screw in the lock body 12. Now, the key 20 can be brought into a zero position and removed from the cylinder core 70, whereby the rotary latch 40 is brought into the locking position in which the rotary latch 40 is rotated relative to the flange portion 72 of the lock cylinder 66.

In the locking position of the rotary latch 40, the locking lug 78 of the lock cylinder 66 presses against the drive surface 58a and the rotary latch 40 is rotated so far that the drive surface 58a, viewed in the direction of the rotation axis, is aligned approximately flush with the stop surface 88a of the adapter piece 82 ( Fig. 6a ). Thereby, the blocking portion 60 of the rotary latch 40 in the second locking recess 24 of the bracket 14 is arranged ( Fig. 6b ). In addition, the blocking element 42 is urged by the drive portion 54 of the rotary latch 40 in the direction of the first locking recess 22 of the bracket 14 and is held by the corresponding portion of the lateral surface of the first (ie upper) level 48 in position. Based on the axis of rotation of the cylinder core 68 and thus on the axis of rotation of the rotary latch 40, the blocking element 42 engage in the radial direction in the first locking recess 22 of the bracket 14 and the blocking portion 60th of the rotary latch 40 in the tangential direction in the second locking recess 24 of the bracket 14 a.

If an attempt is made to remove the bracket 14 from the lock body 12 in the locked position, a lower surface of the bracket 14 defined by the second lock recess 24 abuts against the blocking portion 60 of the rotary latch 40. In addition, the radially outer hemispherical portion 44 of the blocking element 42 wedged with the first locking recess 22 of the bracket 14. In this way, a removal of the bracket 14 in the locking position of the rotary latch 40 is effectively prevented.

If the padlock 10 is unlocked and the bracket 14 are released, so by means of the key 20, starting from said zero position of the cylinder core 68 is rotated, whereby also the locking lug 78 (in the embodiment shown in top view counterclockwise) through the flange 72nd of the lock cylinder 66 is rotated through to the other side of the flange portion 72. The closing lug 78 initially overcomes said backlash of the rotary latch 40 before it is brought into contact with the drive surface 58b of the rotary latch 40 and the rotary latch 40 resting on the support surface 86 and the bearing and end section 80 is rotated in the counterclockwise direction. As a result, the drive section 54 of the rotary latch 40 is brought into the region of the radially inner hemispherical section 44 of the blocking element 42, ie the blocking element 42 can retreat radially in the direction of the recess formed by the drive section 54. In addition, the release portion 62 of the rotary latch 40 is rotated in the angular range of the second locking recess 24 of the bracket 14, ie, the blocking portion 60 of the rotary latch 40 is rotated out of the second locking recess 24. For this double locking action - despite the mentioned backlash of the rotary latch 40 - a rotation of the locking lug 78 is required only along a small angular range. Especially For example, the locking lug 78 of the lock cylinder 66 on either side of the flange portion 72 of the lock cylinder 66 need not be brought into a perpendicular orientation (90 ° position) relative to the flange portion 72 of the lock cylinder 66. Thus, the lock body 12 - as in the bottom view according to Fig. 4 shown - be made relatively flat.

In this designated as the release position position of the rotary latch 40, the bracket 14 can be moved partially upwards out of the lock body 12, whereby the blocking element 42 is urged into the drive section 54. When moving out, the release recess 26 of the second stirrup leg 18 and the release portion 62 of the rotary latch 40 move past each other until the securing portion 30 of the second stirrup leg 18 abuts against the release portion 62 from below. In this position, the rotary portion 28 of the second stirrup leg 18 is at the level of the release cutout 62 of the rotary latch 40, whereby the bracket 14 is rotatable about the second leg 18.

In the release position, the locking lug 78 of the lock cylinder 66 bears against the stop surface 88b of the adapter piece 82. In order to move the rotary latch 40 even further counterclockwise, the lock cylinder 66 must be removed. When the lock cylinder 66 is removed, rotation of the rotary latch 40 beyond the release position into the so-called assembly position is possible. For this purpose, the rotary latch 40 has an engagement slot 94 ( Fig. 3a ) For example, for a screwdriver, by means of which the rotary latch 40 can be rotated with the lock cylinder 66 removed in the mounting position. In the assembly position, the rotary latch 40 is aligned such that the mounting portion 64 is rotated in the angular range of the second stirrup leg 18 and thus arranged in the axial direction in alignment with the channel recess 90 of the adapter piece 82. Thus, the securing portion 30 is no longer blocked by the release portion 62 of the rotary latch 40 and the bracket 14 can be completely removed from the lock body 12.

Again, starting from the release position for locking the padlock 10 of the bracket 14 is completely inserted into the lock body 12, and by means of the key 20 is a rotation of the cylinder core 68 (when viewed from above) in the clockwise direction, the rotary latch 40 in the (in Fig. 6 ) shown locking position rotates. The blocking element 42 is radially urged by the drive portion 54 of the rotary latch 40 in the first locking recess 22 of the bracket 14 and the blocking portion 60 of the rotary latch 40 engages along its direction of rotation in the second locking recess 24 of the bracket 14 a. Unauthorized opening of the bracket 14 is then no longer possible.

LIST OF REFERENCE NUMBERS

10

padlock

12

lock body

14

hanger

16

first leg

18

second leg

20

key

22

first locking recess

24

second locking recess

26

Freigabeausnehmung

28

rotating portion

30

safety section

32

First recording channel

34

Second recording channel

36

receiving opening

38

Through Hole

40

Spagnolet

42

blocking element

44

Hemispherical section

46

Cylindrical section

48

First floor

50

second level

52

Third level

54

driving section

55

recess

56a, 56b

stop surface

57

recess

58a, 58b

drive surface

60

blocking portion

62

release section

64

mounting portion

66

lock cylinder

68

cylinder core

70

Core receiving portion

72

flange

74

pin tumbler

76

threaded hole

77

cylinder housing

78

Cam

80

Storage and finishing section

82

adapter piece

84

Inner recess

86

bearing surface

88a, 88b

stop surface

90

channel recess

92

Total interruption

94

engagement slot

Claims (15)

1. A padlock (10) comprising a lock body (12); a hoop (14) which is held displaceably at the lock body (12) and which has a first and a second shank (16, 18); a rotational bolt (40) which is rotatable about an axis of rotation at least between a release position and a latching position; and at least one blocking element (42),
   wherein the lock body (12) comprises a first and a second reception passage (32, 34) for receiving the first and second shanks (16, 18) of the hoop (14) respectively as well as a reception opening (36) for replaceably receiving a lock cylinder (66) which is shaped asymmetrically in cross-section, with a cylinder housing (77) of the lock cylinder (66) merging into an elongate flange section (72) starting from a circular cross-section of a core reception section (70), said lock cylinder having a rotatable closing nose (78) which is or can be drive-effectively coupled to the rotational bolt (40); and
   wherein the rotational bolt (40) comprises at least one drive section (54) which, in the latching position of the rotational bolt (40), is adapted to urge the blocking element (42) radially outwardly with respect to the axis of rotation in the direction of a blocking recess (22) of the first shank (16), characterized in that
   the rotational bolt (40) furthermore comprises a blocking section (60) which, in the latching position of the rotational bolt (40), is adapted to engage into an associated blocking recess (24) of the second shank (18) in a tangential direction with respect to the axis of rotation.
2. A padlock (10) in accordance with claim 1,
   characterized in that
   the axis of rotation of the rotational bolt (40) and/or the axis of rotation of the closing nose (78) of the lock cylinder (66) received in the reception opening (36) is/are arranged off-center with respect to the first and second reception passages (32, 34) of the lock body (12).
3. A padlock (10) in accordance with claim 1 or claim 2,
   characterized in that
   the axis of rotation of the rotational bolt (40) coincides with the axis of rotation of the closing nose (78) of the lock cylinder (66) received in the reception opening (36).
4. A padlock (10) in accordance with at least one of the preceding claims,
   characterized in that
   the drive section (54) and the blocking section (60) are formed integrally at the rotational bolt (40).
5. A padlock (10) in accordance with at least one of the preceding claims,
   characterized in that
   the blocking element (42) is elongate.
6. A padlock (10) in accordance with at least one of the preceding claims,
   characterized in that
   the blocking element (42) and the blocking section (60) are arranged offset relative to one another with respect to the axis of rotation of the rotational bolt (40).
7. A padlock (10) in accordance with at least one of the preceding claims,
   characterized in that
   the rotational bolt (40) comprises at least a first and a second tier (48, 50) which are each formed substantially in disk shape and which are arranged above one another along the axis of rotation of the rotational bolt (40).
8. A padlock (10) in accordance with claim 7,
   characterized in that
   the first tier (48) comprises the blocking section (60) and the second tier (50) comprises the drive section (54).
9. A padlock (10) in accordance with claim 7 or claim 8,
   characterized in that
   the rotational bolt (40) comprises a third tier (52) between the first and the second tiers (48, 50), the rotational bolt (40) being supported at the lock cylinder (66) in the radial direction and/or in the axial direction in said third tier.
10. A padlock (10) in accordance with at least one of the preceding claims,
    characterized in that
    the lock cylinder (66) is a component of the padlock (10) and comprises a cylinder core (68) which is rotatably supported in the cylinder housing (77) and to which the closing nose (78) is rotationally fixedly connected.
11. A padlock (10) in accordance with claim 10,
    characterized in that
    the closing nose (78) of the lock cylinder (66) projects into a cut-out (57) of the rotational bolt (40), with a rotational clearance being present between the closing nose (78) and the rotational bolt (40).
12. A padlock (10) in accordance with claim 10 or claim 11,
    characterized in that
    an adapter piece (82) is arranged between the lock cylinder (66) and the lock body (12) and forms a rotational abutment (88a, 88b) for the closing nose (78) of the lock cylinder (66) in the release position and/or in the latching position of the rotational bolt (40).
13. A padlock (10) in accordance with at least one of the preceding claims,
    characterized in that
    the reception passages (32, 34) of the lock body (12) extend in parallel with the axis of rotation of the rotational bolt (40).
14. A padlock (10) in accordance with at least one of the preceding claims,
    characterized in that
    the lock cylinder (66) is a profile cylinder in accordance with DIN 18252.
15. A padlock (10) in accordance with at least one of the preceding claims,
    characterized in that
    a plane of symmetry of the lock cylinder (66) coincides with a center plane of the lock body (12) which is spanned by the axes of the two reception passages (32, 34) of the lock body (12) or that the plane of symmetry of the lock cylinder (66) extends in parallel with the center plane of the lock body (12).

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