EP2811089A2 - Joint lock - Google Patents

Abstract

A hinge lock comprises a lock body and a hinge bar handle, wherein the lock body accommodates a lock cylinder and a latch which is movable by the lock cylinder selectively from a closed position to a release position, and wherein the Gelenkstabbügel comprises a plurality hinged together hinge rods, wherein a first end of the Gelenkstabbügels a has elongate locking bar which is insertable into an insertion opening of the lock body and lockable in the lock body by means of the bolt. The hinge lock is characterized in that the lock body further accommodates a biasing device biases the latch in the closed position, wherein the latch is temporarily movable by inserting the lock bar in the lock body against the bias from the closed position to the release position, wherein the biasing means to adapted to move the latch back to the closed position when the locking bar is fully inserted into the lock body.

Description

The present invention relates to a hinge lock with a lock body and a Gelenkstabbügel, wherein the lock body accommodates a lock cylinder and a latch which is movable by the lock cylinder selectively from a closed position to a release position, and wherein the Gelenkstabbügel comprises a plurality hinged joint rods, wherein a first End of the hinged rod strap has an elongate locking rod which is insertable into an insertion opening of the lock body and lockable in the lock body by means of the bolt.

Such a hinge lock serves for example for securing a bicycle to a bicycle stand, a lamp post or the like. For this purpose, the hinge rods of the hinge rod are hinged one behind the other or in a row, and the locking rod, which forms the free end of the hinge rod, is locked to the lock body, thereby forming a closed loop. This closed loop may, for example, engage around a frame portion of the bicycle and the bicycle stand, lamppost or the like or the Gelenkstabbügel encloses only a rim of the bicycle to prevent unauthorized persons on the way.

For the transport of the hinge lock by the authorized user, the joint rods can be folded into a compact arrangement, it being possible in particular, the locking bar in the folded state of the hinge rod in the lock body to lock, the Gelenkstabbügel retains the folded shape. In order to bring the Gelenkstabbügel in the folded shape, it is known to pivot the hinge rods in the manner of a foldable folding rule and thereby bring in a parallel orientation.

A disadvantage of the known articulated locks is that for insertion of the locking bar in the insertion of the lock body, the bolt must be moved by means of the lock cylinder and the matching key in the release position. Subsequently, the bolt must be brought by means of the key in the closed position to lock the locking bar in the lock body. Both the insertion of the lock rod in the lock body and the locking of the lock bar in the lock body thus require manual operation.

It is an object of the invention to provide an easy-to-handle hinge lock.

This object is achieved by a hinge lock with the features of claim 1 and in particular by the fact that the lock body further accommodates a biasing device biases the bolt in the closed position, wherein the bolt by inserting the closing rod in the lock body temporarily against the bias of the closed position is movable into the release position, wherein the biasing means is adapted to move the latch back to the closed position when the closing rod is fully inserted into the lock body.

Thus, the bolt is automatically moved by the insertion of the locking bar in the lock body for a short time from the closed position to the release position, whereby the locking rod without additional movement of the lock cylinder is inserted into the lock body. The insertion of the closing rod is carried out against a bias of the bolt, which is generated by means of the biasing means. Once a portion of the locking bar intended for insertion into the lock body is inserted into the lock body, i. when the lock bar is fully inserted into the lock body, the lock is urged by the bias back into the closed position, whereby the lock bar is locked in the lock body. Removal of the inserted closing rod from the lock body is not possible in the closed position. Only when the bolt is moved by the lock cylinder from the closed position to the release position, the locking bar can be removed again from the lock body.

Advantageously, the hinge lock according to the invention thus enables an automatic function for locking the inserted locking bar without an actuation of the lock cylinder. The handling of the hinge lock according to the invention when locking is thus simple and inexpensive, since only the locking bar must be inserted into the lock body and is locked there automatically.

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

According to a first advantageous embodiment, the locking bar at a free end on a locking portion which is in the closed position of the bolt with the bolt in operative engagement to lock the locking bar in the lock body. As free end is here defines that end of the locking bar, which is insertable into the lock body. On the other hand, a second end of the closing rod, which lies opposite the free end, is articulated on a hinged rod of the hinged rod bracket. The locking portion can in particular be in operative engagement with the bolt when the locking bar is completely inserted into the lock body.

Preferably, the locking portion of the locking bar is formed by a securing bump, i. by an increase relative to the surface of the closing bar. The securing survey is preferably provided on a broad side of the usually flat formed locking bar. The latch may be arranged in the closed position such that it is in operative engagement with the securing protrusion to prevent the locking rod from being pulled out of the lock body by blocking the movement path of the securing protrusion and / or wedging with the securing protrusion.

According to a further advantageous embodiment, the pretensioning device is attached to the lock cylinder and to the bolt. That is, the pretensioner engages both the lock cylinder and the latch to mutually clamp the lock cylinder and latch, whereby the pretensioner, lock cylinder, and latch can form an independent unit. The biasing device may be formed, for example, as a spring.

Preferably, the latch is designed as a rotary latch, which is rotatably mounted on a lateral surface of the lock cylinder. The rotary latch can rest on an outer lateral surface of the lock cylinder, in particular on a cylindrical jacket surface of a cylinder housing, whereby the lock cylinder forms a bearing surface for the rotary latch. The rotary latch may in this case have the shape of a sector of a hollow cylinder, wherein the inner surface of the hollow cylinder rests against the cylindrical outer surface of the lock cylinder. In this way, a simple storage of the rotary latch is possible. In addition, the use of a rotary latch significantly increases the security against unauthorized opening of the hinge lock, as when using a linearly movable bolt, the bolt could be briefly moved for example by a hammer blow on the lock body from the closed position to the release position. The triggering of a rotational movement to bring the rotary latch in the release position, however, is not possible by a hammer blow on the lock body. Said biasing means may be formed in this embodiment as a torsion spring.

According to a further advantageous embodiment, the axis of rotation of the rotary latch coincides with a rotational axis of the lock cylinder or extends parallel thereto. The rotary latch and the lock cylinder can thus be arranged coaxially or almost coaxially.

Advantageously, the rotary latch comprises a lateral surface with a recess, wherein the recess in the release position of the rotary latch releases a path of movement of the locking bar. In the release position, the rotary latch can be positioned such that the recess lies in the path of movement of the locking bar and in particular releases at least the said securing elevation. If the recess is arranged in the movement path of the closing bar, then the closing bar can be inserted into or pulled out of the lock body. In contrast, in the closed position, the recess of the rotary latch is moved out of the path of movement of the locking bar, whereby the path of movement of the locking bar or said securing survey blocks and the inserted locking bar is locked in the lock body. According to a further advantageous embodiment, the aforementioned recess extends with respect to the axis of rotation of the rotary bolt in a tangential direction along the lateral surface of the rotary latch. The rotary latch may substantially have the shape of a hollow cylinder or a sector of a hollow cylinder, wherein the recess extends in the circumferential direction of the lateral surface of the rotary latch and extends along a certain angular range of the lateral surface. Consequently, by rotation of the rotary bolt, either the recess or an area of the lateral surface of the rotary bolt can be brought into the movement path of the locking bar without recess.

Advantageously, the lock cylinder has a cylinder housing and a cylinder housing rotatably mounted in the cylinder housing, which is drive-effectively coupled with the rotary latch, but with backlash. The cylinder core can be selectively rotated by the user by means of a key associated with the lock cylinder. By a rotational movement of the cylinder core, which is transferable to the rotary latch, the rotary latch can be rotated about its axis of rotation, for example, to release the path of movement of the locking bar or a fuse protection provided thereon. Due to the torsional backlash, which is provided between the cylinder core and rotary latch, the rotary latch can also be temporarily rotated into the release position during insertion of the locking rod into the lock body, without a rotational movement of the cylinder core is necessary. Subsequently, due to the bias, the rotary latch can be returned from the release position to the closed position, without any need for a rotational movement of the cylinder core.

According to an advantageous embodiment, the cylinder core on a drive extension, the cross section is partially formed by a circular portion and partially by a stop edge, wherein the drive extension engages in a coupling opening of the rotary latch, and wherein the cross section of the coupling opening partially by a circular section, partially by a first Stop edge and is formed in part by a second stop edge, which adjoins the first stop edge and encloses with this an angle different from 0 ° and 180 °. By means of the drive extension, a rotational movement of the cylinder core can be transmitted to the rotary latch to rotate the rotary latch and, for example, to change the position of the recess of the rotary latch. The drive extension is an extension of the cylinder core, which is defined by a limited by a secant circle section. The drive extension is also rotated by a rotation of the cylinder core and transmits its rotational movement, for example, to the first stop edge of the rotary latch. The coupling opening may be formed by a circular section, into which projects a triangular stop, wherein the first stop edge may be formed by a first secant portion and the second stop edge by a second secant portion which enclose an angle with each other. By this angle, the aforementioned backlash between the cylinder core and rotary latch can be defined, namely by either said first stop edge or said second stop edge of the coupling opening of the rotary latch abuts against said stop edge of the drive extension.

The lock body, in particular the inner housing explained below, may further comprise a stop which limits a rotational movement of the cylinder core and / or the rotary bolt to at least One direction of rotation to prevent over-rotation of the cylinder core in the cylinder housing or over-rotation of the rotary latch.

Advantageously, the locking bar is insertable along its longitudinal axis into the insertion opening of the lock body, wherein an axis of rotation of the lock cylinder is oriented perpendicular to a plane which is spanned by the longitudinal axis of the lock bar (ie, the insertion direction of the lock bar) and the hinge axis of the lock bar when the lock bar is inserted into the lock body. Thus, upon insertion of the locking bar into the lock body, rotation of the rotary latch about its axis of rotation can be effected. This in turn can cause the displacement of the recess of the rotary latch in the movement path of the locking bar, whereby the locking bar is completely inserted into the lock body.

The aforesaid plane corresponds in particular to the plane of extent of the joint bars and of the closing bar when the hinged rod bar is collapsed in the manner of a folding rule and the joint bars and the closing bar are parallel to one another. An orientation of the lock cylinder, wherein the insertion direction of the key is perpendicular to said plane, is still advantageous in the following manner: When not in use, the hinge lock can be stored during transport in an associated lock pocket, which is typically mounted on the frame tube of a bicycle, the longitudinal axes of the articulated rods run parallel to the longitudinal axis of the frame tube and the broad side of the articulated rod packet formed faces the frame tube (cf., for example, those in US Pat DE 20 2005 013 390 U1 shown lock pocket). With such an arrangement of the hinge lock, the insertion opening of the key on the lock body is oriented perpendicular to the aforementioned plane, The key can remain plugged in during the transport of the hinge lock in the lock cylinder, without the key protrudes into the range of motion of the cyclist and thereby disturb the cyclist in his movements.

Alternatively, the locking bar can be pivoted laterally into the insertion opening of the lock body, wherein an axis of rotation of the lock cylinder is aligned parallel to the longitudinal axis of the lock bar when the lock bar is inserted into the lock body. The path of movement of the closing rod during lateral insertion into the lock body can thus be approximately perpendicular to a plane in the area of the lock body, which plane is defined by the axis of rotation of the rotary latch and the longitudinal axis of the closing bar in the fully inserted state. When swinging the locking bar, a rotation of the rotary latch can be effected, which allows the complete insertion of the locking rod in the lock body.

As an alternative to the use of a rotating bolt, the bolt can also be designed as a latch, which protrudes into the path of movement of the closing rod. The latch can be temporarily pushed back from an end face of the lock bar and engage after the complete insertion of the lock bar in the lock body in a recess of the lock bar or engage behind a securing survey of the lock bar to lock the lock bar in the lock body. To push back the latch, the latch and / or the end face of the lock bar may include an inclined surface through which the latch is pushed back upon insertion of the lock bar into the lock body. In this embodiment, a securing survey on the locking bar is not mandatory because an intervention of the bolt - as explained - may be provided for example in a recess of the locking bar.

It is particularly advantageous if the closing bar has at least one protective elevation which, viewed along the longitudinal axis of the closing bar, is provided between the insertion opening of the lock body and the latch when the closing bar is completely inserted into the lock body. Such protection collection serves to protect against manipulation of the bolt from the outside, for example, when trying to move by means of a flat tool through the insertion of the lock body through the bolt in the direction of its release position. In other words, the protective elevation of the locking bar prevents access to the effective area between the locking bar and the locking bar. The protection elevation can be designed as an increase relative to a broad side of the usually flat locking bar. The protective elevation can be provided in particular on the side of the closing bar which faces the latch within the lock body. For example, the protective projection between the insertion of the lock body and the said securing survey of the lock bar may be provided when the lock bar is fully inserted into the lock body.

A particularly cost-effective production of the hinge lock can be achieved in particular in that the lock body has a one-piece inner housing with two bearing openings on two opposite sides, wherein the lock cylinder has a cylinder housing and a cylinder housing rotatably mounted in the cylinder core (in particular the already mentioned cylinder housing and cylinder core ), wherein the lock cylinder between the two opposite sides of the inner housing is trapped, and wherein the cylinder core in the two bearing openings of the inner housing is rotatably mounted. The one-piece inner housing can be made here as a stamped bent part made of metal.

According to an advantageous development, said one-piece inner housing has at least one bent retaining tongue which fixes the cylinder housing against rotation. As a result, the cylinder housing can be fixed in a particularly simple manner in the inner housing rigid. Preferably, two such retaining tongues are provided, which engage on two different sides of a flange portion of the cylinder housing.

Further, it is advantageous if the lock body has a sleeve which surrounds said one-piece inner housing circumferentially, in order to stabilize this in addition. The sleeve is preferably made of metal and fully open at one end in order to be able to mount the sleeve on the inner housing. The fixation of the sleeve on the inner housing can be done by positive engagement, for example by punctiform deformation and corresponding engagement behind the inner housing at several points along the circumference.

According to a further advantageous embodiment, a second end of the hinge rod bracket is permanently attached to the lock body. In this way, a loss or inadvertent dropping of the hinged rod bracket can be prevented. In particular, the Gelenkstabbügel can be rotatably mounted on the lock body, whereby the lock body relative to the Gelenkstabbügel is pivotable. The rotatable attachment of the second end of the Gelenkstabbügels the lock body may be provided in the region of the longitudinal axis of the lock body, ie, the axis of rotation coincides with the longitudinal axis of the lock body or only slightly spaced therefrom to maximize the length of the closed loop.

According to a further advantageous embodiment, the plastic sheath of the first end of the hinged bar handle is differently colored than that of the second end of the hinge bar, which is hinged to the lock body. If the lock body and the second end of the hinge bar are of the same color, the color-coded first end of the hinge bar already visually indicates to the user which end of the bar is detachable from the lock body. In particular, the respective plastic shell of the locking bar and all joint rods except for the second end of the hinge rod bracket corresponding hinge rod can be designed in a first color, while the second end of the hinge rod bracket corresponding hinge rod and the lock body are executed in a different second color.

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

Fig. 1

ein erfindungsgemäßes Gelenkschloss in (a) perspektivischer Ansicht von schräg oben und in (b) Ansicht von oben bei entferntem Außengehäuse;

Fig. 2

den Bereich des Schlosskörpers des Gelenkschlosses von Fig. 1 in (a) Ansicht von oben und in (b) Ansicht von unten;

Fig. 3

den Bereich des Schlosskörpers von Fig. 2 mit freigelegtem Schließzylinder und Drehriegel in (a) Ansicht von oben und in (b) Ansicht von unten;

Fig. 4

den Bereich des Schlosskörpers von Fig. 3 in (a) perspektivischer Ansicht von vorne und in (b) perspektivischer Seitenansicht;

Fig. 5

eine perspektivische Darstellung des Schließzylinders mit Drehriegel von schräg oben; und

Fig. 6

eine perspektivische Darstellung des Schließzylinders mit Drehriegel von unten.

Show it:

Fig. 1

an inventive hinge lock in (a) perspective view obliquely from above and in (b) view from above with the outer housing removed;

Fig. 2

the area of the lock body of the hinge lock of Fig. 1 in (a) top view and in (b) bottom view;

Fig. 3

the area of the lock body of Fig. 2 with exposed lock cylinder and rotary latch in (a) top view and (b) bottom view;

Fig. 4

the area of the lock body of Fig. 3 in (a) perspective view from the front and in (b) perspective side view;

Fig. 5

a perspective view of the lock cylinder with rotary latch from above obliquely; and

Fig. 6

a perspective view of the lock cylinder with rotary latch from below.

This in Fig. 1a The hinge lock 10 shown comprises a lock body 12 and a hinged rod bracket 14 attached thereto. The hinge rod bracket 14 can be folded into a compact unit and, in this state, preferably also locked to the lock body 12. In the unlocked state of the hinge lock 10, the Gelenkstabbügel 14 can be unfolded to form a loop in a known per se and thereby shut off a bicycle or to another object (eg bicycle rack) to secure.

Specifically, the hinge rod bracket 14 has a plurality of hinge rods 16, one of which is formed as a locking bar 18. The joint rods 16 and the locking bar 18 are each formed flat and are preferably made of steel, which is surrounded by a plastic sheath 20 to avoid damage to the two-wheeled vehicle. The hinge rods 16 and the locking bar 18 are through a respective rivet 22 in such a manner hinged together in sequence, that the hinge axes parallel or coaxial with each other and the Gelenkstabbügel 14 can be folded in the manner of a folding rule. In the folded state of the hinge rod bracket 14, the longitudinal axes of the hinge rods 16 and the locking rod 18 extend in a plane parallel to each other. A first end 24 of the Gelenkstabbügels 14 is formed by the free end of the locking bar 18, which serves as a locking portion, as will be explained below. A second end 26 of the Gelenkstabbügels 14 is hinged to the lock body 12.

The lock body 12 comprises a substantially cuboid outer housing 28, which is formed from plastic. The second end 26 of the Gelenkstabbügels 14 is flush with a side wall of the outer housing 28. On a top side of the outer housing 28, a key opening 30 is accessible, through which a key 32 can be inserted into the lock body 12. The insertion of the key 32 is perpendicular to a plane defined by the Gelenkstabbügel 14 in the folded and locked state.

The lock body 12 further comprises in an area opposite the second end 26 of the hinge rod bracket 14, an insertion opening 34, through which the locking rod 18 along its longitudinal axis in the lock body 12 can be inserted. When the locking bar 18 is inserted into the insertion opening 34, the closing bar 18 is surrounded by the boundary of the insertion opening 34 of the outer housing 28 substantially form-fitting manner.

Fig. 1b shows the hinge lock 10 without the outer housing 28 can be seen a sleeve 29 made of deep-drawn sheet steel, in which the Key opening 30 and the insertion 34 continue, and their function will be explained below.

In the Fig. 2a and 2b the lock body 12 is shown with inserted locking bar 18, but without the outer housing 28 and without the sleeve 29 shown. The outer housing 28, not shown here, is latched to locking projections 36 and houses an inner housing in the form of a lock body reinforcement 38, which is made of sheet steel. The lock body reinforcement 38 forms a cage-like structure and prevents in particular an access into the interior of the lock body 12 from above (see. Fig. 2a ) and from below (cf. Fig. 2b ). The lock body reinforcement 38 is also non-positively connected to the rivet 22 of the second end 26 of the Gelenkstabbügels 14 and thus secured the Gelenkstabbügel 16 rotatably on the lock body 12th

The lock body reinforcement 38 is further formed as a guide of the locking bar 18 and prevents the fully inserted state of the locking bar 18 a lateral movement, a movement up or down and a rotation of the locking bar 18th

The key opening 30 continues in the lock body reinforcement 38, wherein the key opening 30 is circular and has a diameter which is adapted to the diameter of an upper end of a lock cylinder 40. The upper end of a rotatable cylinder core 50 of the lock cylinder 40 projects positively into the key opening 30 of the lock body reinforcement 38, whereby the lock body reinforcement 38 provides a bearing for the lock cylinder 40 ( Fig. 2a ).

On the bottom ( Fig. 2b ) protrudes a drive extension 42 of the cylinder core 50 into a bearing opening 44 of the lock body reinforcement 38 into it. The drive extension 42 comprises a cross section which is formed by a circle section delimited by a secant, the secant defining a stop edge 46. The boundary of the bearing opening 44 of the lock body reinforcement 38 comprises a triangular stop 48, which limits a rotational movement of the drive extension 42 of the cylinder core 50 by cooperation with said stop edge 46. In this way, a rotational actuation of the lock cylinder 40 is limited by means of the key 32.

The drive extension 42 is also indirectly supported by the lock body reinforcement 38, so that the lock cylinder 40 is supported both at its upper and at its lower end by the lock body reinforcement 38.

The lock body 12 without the lock body reinforcement 38 is in the Fig. 3a, 3b . 4a and 4b shown. Within the lock body reinforcement 38 (not shown), the lock cylinder 40 is arranged, which comprises the rotatable cylinder core 50 and a stationary cylinder housing 52. The cylinder housing 52 has a hollow cylindrical portion in which the cylinder core 50 is mounted, and a radially projecting flange portion 53 in which tumblers are arranged, which are pushed back by the key 32 to selectively unlock the lock cylinder 40 and turn the cylinder core 50 to be able to.

An axis of rotation of the cylinder core 50 of the lock cylinder 40 is perpendicular to a plane defined by the longitudinal axis of the lock bar 18 and the hinge axis of the lock bar 18 defined by the associated rivet 22. This level corresponds to the Fig. 2a, 2b . 3a and 3b Coaxial with the axis of rotation of the lock cylinder 40, a substantially hollow cylindrical rotary bolt 54 is arranged on an outer circumferential surface 55 of the hollow cylindrical portion of the cylinder housing 52nd is movably mounted. The rotary latch 54 is rotatable about the axis of rotation of the lock cylinder 40 relative to the cylinder housing 52. The rotary latch 54 encloses a part of the circumference of the lock cylinder 40, wherein the rotary latch 54 comprises a peripheral relief 56 through which the flange portion 53 of the cylinder housing 52 projects. The circumferential relief 56 is formed larger than the thickness of the flange portion 53, whereby the rotary latch 54 has a certain backlash against the lock cylinder 40.

On an underside of the rotary bolt 54, this comprises a coupling region 58 (FIG. Fig. 3b ), which forms a bottom of the rotary bolt 54, on which the lock cylinder 40 is seated. Centrally in the coupling region 58, a coupling opening 60 is provided, into which the drive extension 42 of the lock cylinder 40 protrudes and which is surrounded by a ring portion 61. To transmit a rotation of the cylinder core 50 and thus of the drive extension 42 to the rotary latch 54, the coupling opening 60 comprises a first secant formed by a first stop edge 62 which rests in the shown closed position of the rotary latch 54 against the stop edge 46 of the cylinder core 50. Furthermore, the coupling opening 60 comprises a second stop edge 64 formed by a second secant. First and second stop edges 62, 64 enclose an angle of approximately 135 ° with each other, resulting in a backlash of approximately 45 ° between the cylinder core 50 and the rotary latch 54. The formation of the coupling region 58 of the rotary latch 54 is in the bottom view according to Fig. 6 even more clearly shown.

Between the cylinder housing 52 of the lock cylinder 40 and the rotary latch 54, a spring 66 is tensioned, which rotates in the closed position of the rotary latch 54 to the lock cylinder 40, wherein about 270 ° are swept by the spring. On the rotary latch 54 two cylindrical extensions 68 are provided which protrude on an upper end face of the rotary latch 54 from the end face and through which the spring 66 is threaded therethrough to produce a non-positive connection of the spring 66 with the rotary latch 54.

The spring biases the rotary latch 54 relative to the cylinder housing 52 in such a way that the rotary latch 54 in the view of Fig. 3a is urged counterclockwise. The rotary latch 54 is by the force of the spring 66 against a (in Fig. 3a ) left side of the flange portion 53 of the cylinder housing 52, wherein the cylinder housing 52 is immovably fixed in the lock body 12. This is the closed position of the rotary latch 54.

An outer circumferential surface 69 of the rotary latch comprises a passage in the form of a recess 70, which in Fig. 5 shown in detail. The recess 70 comprises a flat region 72, in which the depth of the recess 70, seen in the circumferential direction of the rotary bolt 54, increases less than in a steep region 74. The flat portion 72 of the recess 70 is - viewed in the insertion direction of the locking bar 18 - in front of the steep area 74.

The depth of the recess 70 is equal to the height of a securing projection 76 (FIG. Fig. 3a, 3b . 4a and 4b ) of the locking bar 18, which is arranged on a broad side of the flat locking bar 18. The securing projection 76 has the shape of a cylinder sector and is in the Arranged portion of the first end 24 of the locking bar 18 that it faces in the inserted state of the locking bar 18 in the direction of the rotary latch 54. The securing projection 76 is formed of steel and is not surrounded by the plastic jacket 20. In the direction of the rivet 22 of the locking bar 18 adjacent to the securing protrusion 76, a protective protrusion 78 is further provided at the first end 24 of the locking bar 18, which has the shape of a spherical segment.

Finally, the fixation of the lock cylinder 40 in the lock body 12 is explained in more detail. On the underside of the lock cylinder 40, the drive extension 42 of the cylinder core 50 engages in the bearing opening 44 of the lock body reinforcement 38, wherein the cylinder core 50 via the ring portion 61 of the coupling region 58 of the rotary latch 54 is mounted indirectly in the bearing opening 44. The lock cylinder 40 is thereby caught between two opposing wall sections of the one-piece lock body reinforcement 38, ie trapped in the axial direction and in the radial direction (relative to the axis of rotation of the lock cylinder 40). In addition, the cylinder housing 52 is rotatably held in the lock body reinforcement 38 in that two inwardly bent retaining tongues 39 of the lock body reinforcement 38 (see. Fig. 2a ) the flange portion 53 of the cylinder housing 52 (see. Fig. 3a ) are supported on both sides. As a result, a respective blocking of the cylinder housing 52 is accomplished in both directions of rotation.

The cylinder housing 52 of the lock cylinder 40 is thus fixed in a fixed manner in a very simple manner and without separate fastening elements in the lock body reinforcement 38, wherein the lock body reinforcement 38 can be designed as a single stamped and bent part. In the Fig. 1b sleeve 29 shown here serves the additional stabilization of the lock body reinforcement 38 and the protection of the lock cylinder 40 by the sleeve 29 surrounds the lock body reinforcement 38 circumferentially and on the side facing away from the rivet 22. The sleeve 29 thus forms an outer box for the lock body reinforcement 38. The sleeve 29 can be pulled over the lock body reinforcement 38 after the lock cylinder 40 has been inserted into the lock body reinforcement 38 in the manner explained and the wall sections of the lock body reinforcement 38 have been bent into their final orientation , After coating the sleeve 29, the sleeve 29 is fixed to the lock body reinforcement 38, for example, by caulking at four points along the circumference in the region of the locking projections 36th

As far as the function of the hinge lock 10 is concerned, the closing rod 18 is first inserted into the insertion opening 34 for closing the hinge lock 10 when inserting the locking bar 18 into the lock body 12. The region of the first end 24 of the closing rod 18 which is not surrounded by the plastic jacket 20 penetrates into the lock body 12. If no key 32 is inserted into the lock cylinder 40, then the rotary latch 54 is in the closed position. When inserting the locking bar 18, the securing projection 76 is guided past the recess 70 until the securing projection 76 comes into contact with the rotary latch 54 in the steep area 74. If the locking bar 18 is inserted deeper into the lock body 12, a force is transmitted from the securing boss 76 to the steep area of the rotary latch 54, whereby a rotation of the rotary latch 54 against its bias about the axis of rotation of the lock cylinder 40 is triggered (in Fig. 3a clockwise). By thus triggered rotation of the rotary latch 54 of the rotary latch 54 is temporarily rotated in the release position. For this purpose, the cylinder core 50 of the lock cylinder 40 does not rotate, since, as explained, sufficient backlash is provided between the stop edge 46 of the cylinder core 50 and the second stop edge 64 of the rotary latch 54, and since the described peripheral release 56 of the rotary latch 54 is sufficiently large.

As a result of the rotation of the rotary bolt 54, the securing projection 76 can be guided past the rotary bolt 54 until the locking rod 18 and thus the securing projection 76 have reached the position shown in the figures. In the illustrated position, there is no transfer of force from the securing boss 76 to the steep portion 74, whereby the rotary latch 54 is automatically rotated back to the closed position by the force of the spring 66.

If an attempt is now made to pull the locking rod 18 out of the lock body 12, then the securing projection 76 wedges between the area of the outer jacket surface 69 of the rotary bolt 54 and the lock body reinforcement 38. Since the recess 70 of the rotary bolt 54 is rotated away from the securing raised portion 76 in the closed position , the securing protrusion 76 can not pass between the lock body reinforcement 38 and the rotating bolt 54. The locking bar 18 is thus locked in the lock body 12.

In this closed position of the rotary latch 54, the protective projection 78 counteracts a manipulation of the rotary position of the rotary latch 54 through the insertion opening 34 of the lock body 12. Namely, the protective projection 78 prevents a flat tool from being inserted into the insertion opening 34 along the closing rod 18 in order to urge the rotary bolt 54 in the direction of its release position inside the lock body 12.

However, if the authorized user wants to remove the locking bar 18 from the lock body 12, for example to release his bicycle from a bicycle stand, he inserts the key 32 into the lock cylinder 40. Subsequently, a rotary movement of the cylinder core 50 is performed with the key 32 (in Fig. 3a in a clockwise direction) through which the drive extension 42 is set in a rotational movement. As a result, the stop edge 46 of the cylinder core 50 drives the first stop edge 62 of the coupling region 58 of the rotary latch 54 and also sets the rotary latch 54 in rotation (in FIG Fig. 3a clockwise). By the rotation of the rotary bolt 54, the recess 70 is brought into the movement path of the locking bar 18 (release position of the rotary latch 54), whereby the securing projection 76 is released and can pass between the lock body reinforcement 38 and the rotary latch 54. The locking bar 18 can thus be pulled out of the lock body 12.

Notwithstanding the illustration in the drawings, the locking bar 18 may be so short that the hinge bar bracket 14 is collapsible into a common plane of extension of the hinge bars 16 and the locking bar 18 without the locking bar 18 is inserted into the lock body 12. In this way, the hinge lock 10 can be stored or transported in the folded state, for a subsequent closing of the hinge lock 10 of the locking rod 18 can be inserted into the insertion opening 34 of the lock body 12 without first solved by means of the key 32 of the lock bar 18 from the lock body 12 must become. Since - as explained - no key operation of the lock cylinder 40 is required for locking the locking bar 18 on the lock body 12, the use of the hinge lock 10 thus made very comfortable.

LIST OF REFERENCE NUMBERS

10

folding lock

12

lock body

14

Articulation rod bracket

16

joint staff

18

closing bar

20

Plastic sheath

22

rivet

24

first end

26

second end

28

outer casing

29

shell

30

key opening

32

key

34

insertion

36

catch projection

38

Lock body armor

39

holding tongue

40

lock cylinder

42

Drive extension

44

bearing opening

46

stop edge

48

attack

50

cylinder core

52

cylinder housing

53

flange

54

Spagnolet

55

lateral surface

56

Extensive exemption

58

coupling region

60

coupling opening

61

ring section

62

first stop edge

64

second stop edge

66

feather

68

cylindrical extension

69

lateral surface

70

recess

72

flat area

74

steep area

76

assurance survey

78

protection survey

Claims (15)

Articulated lock (10) with a lock body (12) and a hinge bar handle (14), wherein the lock body (12) accommodates a lock cylinder (40) and a latch (54) which by the lock cylinder (40) optionally from a closed position to a release position is movable, and wherein the Gelenkstabbügel (14) comprises a plurality hinged joint rods (16), wherein a first end (24) of the Gelenkstabbügels (14) has an elongated locking rod (18) in an insertion opening (34) of the lock body (12 ) and lockable in the lock body (12) by means of the bolt (54),
characterized in that
the lock body (12) further accommodates a biasing means (66) biasing the latch (54) to the closed position, the latch (54) being temporarily inserted against the bias from the closed position by inserting the lock bar (18) into the lock body (12) is movable to the release position, wherein the biasing means (66) is adapted to move the latch (54) back into the closed position when the closing rod (18) is fully inserted into the lock body (12). Articulated lock (10) according to claim 1,
characterized in that
the locking bar (18) at a free end (24) has a locking portion (76) which, in the closed position of the bolt (54), is in operative engagement with the bolt (54) to move the locking bar (18) in the lock body (12) to lock. Articulated lock (10) according to claim 2,
characterized in that
the locking portion of the locking bar (18) is formed by a securing projection (76). Articulated lock (10) according to one of the preceding claims,
characterized in that
the biasing means (66) on the lock cylinder (40) on the one hand and on the latch (54) on the other engages. Articulated lock (10) according to one of the preceding claims,
characterized in that
the latch is formed as a rotary latch (54) which is rotatably mounted on a lateral surface (55) of the lock cylinder (40). Articulated lock (10) according to claim 5,
characterized in that
the axis of rotation of the rotary bolt (54) coincides with a rotational axis of the lock cylinder (40) or extends parallel thereto. Articulated lock (10) according to claim 5 or 6,
characterized in that
the rotary latch (54) comprises a lateral surface (69) with a recess (70), the recess (70) releasing a movement path of the locking rod (18) in the release position of the rotary latch (54). Articulated lock (10) according to claim 7,
characterized in that
the recess (70) with respect to the axis of rotation of the rotary bolt (54) in the tangential direction along the lateral surface (69) of the rotary bolt (54). Articulated lock (10) according to one of claims 5 to 8,
characterized in that
the lock cylinder (40) has a cylinder housing (52) and a cylinder core (50) rotatably mounted in the cylinder housing, which is coupled with the rotary latch (54) in an effective manner but with backlash. Articulated lock (10) according to claim 9,
characterized in that
the cylinder core (50) has a drive extension (42) whose cross-section is partially formed by a circular portion and partially by a stop edge (46), wherein the drive extension (42) engages in a coupling opening (60) of the rotary latch (54), and wherein the cross-section of the coupling opening (60) is formed partly by a circular section, partly by a first stop edge (62) and partly by a second stop edge (64) which adjoins the first stop edge (62) and at an angle therewith includes;
and / or that
the lock body (12) has a stop (48) which limits a rotational movement of the cylinder core (50) and / or the rotary bolt (54). Articulated lock (10) according to one of the preceding claims,
characterized in that
the locking bar (18) is insertable along its longitudinal axis into the insertion opening (34) of the lock body (12), an axis of rotation of the lock cylinder (40) being oriented perpendicular to a plane passing through the longitudinal axis of the lock bar (18) and the hinge axis of the lock bar Locking bar (18) is clamped when the locking bar (18) is inserted into the lock body (12);
or that
the locking bar (18) is laterally pivotable into the insertion opening of the lock body (12), wherein an axis of rotation of the lock cylinder (40) is aligned parallel to the longitudinal axis of the lock bar (18) when the lock bar (18) is inserted into the lock body (12) is. Articulated lock (10) according to one of the preceding claims,
characterized in that
in that the locking bar (18) has a protective protuberance (78) provided between the insertion opening (34) of the lock body (12) and the latch (54) when the locking bar (18) is fully inserted into the lock body (12). Articulated lock (10) according to one of the preceding claims,
characterized in that
the lock body (12) has a one-piece inner housing (38) with two bearing openings (30, 44) on two mutually opposite sides, the lock cylinder (40) having a cylinder housing (52) and a cylinder core (50) rotatably mounted in the cylinder housing, wherein the lock cylinder (40) is caught between the two opposite sides of the inner housing (38), and wherein the cylinder core (50) is rotatably mounted in the two bearing openings (30, 44) of the inner housing (38). Articulated lock (10) according to claim 13,
characterized in that
the inner housing (38) has at least one bent retaining tongue (39) which fixes the cylinder housing (52) against rotation; and / or that
the lock body (12) further comprises a sleeve (29) which surrounds the inner housing (38) circumferentially. Articulated lock (10) according to one of the preceding claims,
characterized in that
a second end (26) of the hinge rod bracket (14) is permanently attached to the lock body (12).

Images