EP2261445B1 - Lock in particular door lock with improved locking mechanism - Google Patents

Description

The present invention relates to a lock, in particular a door lock, with a lock housing, in which a locking mechanism is received, and with a locking element, which is movable by the locking mechanism between a protruding from the lock housing position and a retracted into the lock housing position, wherein the locking mechanism has at least one rotary element that is rotatable with at least one actuating unit such as a lock cylinder, a rotary knob, a stepper motor and / or the like, and wherein the locking mechanism comprises a slider element, which has an operative connection with the rotary element, such that the closing element a Performs reciprocating motion when the rotary member rotates with a constant sense of rotation.

From the publication FI 95308 is a generic castle with a lock housing known in which a locking mechanism is added. A locking element is movable by the locking mechanism between a protruding from the lock housing and a retracted into the lock housing position. Furthermore, the locking mechanism has a rotary element, which is rotatable with at least one actuating unit such as a lock cylinder, a rotary knob, a stepping motor and / or the like, and wherein the locking mechanism comprises a slider element which has an operative connection with the rotary element, such that the slider element can perform a reciprocating motion when the rotating member rotates with a constant sense of rotation. Consequently, a key can be continuously rotated in a lock cylinder with constant rotation, or the lock has a knob on, which can cooperate as well as the lock cylinder with the rotary member. Also, the knob can be rotated continuously with the same direction of rotation. In this case, the rotary member is rotated continuously in a rotational direction with each further rotation of the key or the rotary knob, wherein the slide element performs the reciprocating motion. The slider element is connected to the locking element via the further locking mechanism, and by the protrusion and retraction of the locking element from the housing or in the housing, the lock is locked and reopened. The operative connection between the rotary element and the slider element consequently converts a rotary movement into a linear alternating movement. For this purpose, the rotary member has a toothed segment, which interacts with a first rack and a second rack. If the toothed segment engages in the first rack, the slider element is moved in a first direction. On the other hand, when the toothed segment meshes with a second, opposing toothed rack, the sliding element is moved in a second direction, which opposes the first direction so as to carry out the reciprocating movement.

However, a disadvantage is the required exact meshing of the teeth of the toothed segment with the teeth of the respective rack. If a tooth tip of the toothed segment meets a tooth tip of a tooth of the toothed rack, the rotational movement of the rotary element can block. The required positioning accuracy of the teeth of the toothed segment with the respective racks is therefore very high and constructive difficult to implement. If, for example, the locking element can not be fully extended and retracted, the sliding element element rests in a position which does not correspond to one of the two end positions. Consequently, a re-meshing of the toothed segment in one of the two racks is difficult or prevented. Although limiting and guiding means are provided in the form of stop bolts to which the slide element in the each end position may adjoin, but is not guaranteed that the slider element has actually been led to the respective limit, for example, if the locking element can not be fully extended or withdrawn. The probability of a faulty tooth engagement can not therefore be ruled out. Furthermore, the production of a toothing, at least comprising a toothed segment and two opposing toothed racks, is comparatively complicated, since high accuracy requirements are imposed.

If the rotary element is rotated over an angular range, the slider element shifts by a certain amount as a function of the swept angle range of the rotary element. In an operative connection between the rotary member and the slider element, which is based on a rack meshing in a toothed segment, the disadvantage is further given that between the displacement of the slider element and the swept angle range of the rotary element is a fixed predetermined relationship, the adverse torque curve of the rotary element causes.

It is therefore the object of the present invention to overcome the disadvantages of the prior art described above and to provide an improved operative connection between the rotary member and the movement of the locking element.

This object is achieved on the basis of a lock according to the preamble of claim 1 in conjunction with the characterizing features. Advantageous developments of the invention are specified in the dependent claims.

The invention includes the technical teaching that the operative connection between the rotary element and the slide element has at least one driving cam present on the rotary element and that the Slider element has a first cam heel, so that by interaction with the driving cam, the slider element is movable in a first direction and that the slider element has a first Mitnehmerabsatz opposite second cam shoulder, so that by interaction with the driving cam, the slider element in a first opposite direction of the second Direction is movable.

The invention is based on the idea to provide an improvement of the locking mechanism, so that a secure operative connection between the rotary member and the slider element is provided independently of the rotational position of the rotary member and the axial position of the slider element. Regardless of the axial position of the pushing element and thus regardless of the current position of the locking element between the projecting position and the retracted position, a key in the lock cylinder, both in a first rotational direction and in a second rotational direction can be continuously rotated, and the engagement of the rotary member in the slide element can be done safely. The configuration of the rotary member with a driving cam is carried out in a simple manner, wherein furthermore the production of a simple Mitnehmerabsatzes can be done on each opposite sides of the slide element easier than the production of a rack. The result of the inventive solution of the active connection between the rotary member and the Schleberelement not only a higher reliability, but the production of the components involved can be done at a lower cost.

With particular advantage, the lock can be designed as a door lock, wherein the locking element may be an axially displaceable locking element or preferably a pivot bolt which is pivotable about a pivot axis between the protruding from the lock housing position and the retracted into the lock housing position. The Pivoting movement is caused by the locking mechanism, so that on the rotational movement of the rotary member and further on the sliding movement of the slider element, a pivoting of the pivot bolt is generated.

With further advantage, the slider element may have at least one receiving area in which the rotary element is preferably at least partially received, wherein the rotary element is designed in particular disc-like, and wherein the driving cam is arranged on a flat surface of the disc-like rotary member. The slider element has a rectangular basic shape and is substantially flat. On at least one of the flat side of the slide element, the receiving area is introduced in the form of a depression. In this recess, the rotary member protrudes at least partially in order to cooperate with the slider element. With particular advantage, the driving cam is arranged on a plane surface of the disk-like rotary element such that it rotates on rotation of the rotary element about the axis of symmetry on a circular path. The driving cam and consequently the circular path are thus preferably arranged in the receiving region of the slide element.

Preferably, the first Mitnehmerabsatz and the second Mitnehmerabsatz are formed on the slider element that the Mitnehmerabsätze at least partially over the receiving area of the slide element and / or protrude into this. In particular, the Mitnehmerabsätze protrude into the circular path, on which the driving cam rotates. Consequently, the interaction between the driving cam and the first and the second cam paragraph can take place when the rotary member is set in rotation.

With particular advantage, the driver can be designed like a pin or bolt-like or in the manner of a paragraph or an edge on the Planar surface of the disk-like rotary member may be formed to cooperate with the Mitnehmerabsätzen, and in particular slide on these. As a result, only a geometric positive connection between the driving cam and the Mitnehmerabsätzen must take place, so that the driving cam could also be present on the peripheral side of the disk-like rotary member. For example, the Mitnehmemocken be introduced in the form of a nose or a diameter jump in the rotary member, wherein the rotary member must be stored on at least one paragraph only in the lock housing. In the context of the present invention, the driving cam consequently describes any type of geometric projection which is preferably present simply on the rotary element and can engage with the secondary sections of the sliding element.

Advantageously, a first rotary element can be arranged on a first side and a second rotary element can be arranged on an opposite second side of the slider element. For this purpose, the slider element has on each of the sides a receiving area with adjacent driver shoulders, into which a respective rotary element can protrude or adjoin. This results in the advantage that two lock cylinders can interact with the lock mechanism of the lock. A first lock cylinder on a first side of the lock may cooperate with and rotate a first rotary member, and opposite a second lock cylinder may cooperate with a second rotary member to also rotate the same to produce a reciprocating motion in the slider member , The slider element can preferably be guided via a spring present in the lock housing in the lock housing, in which a correspondingly designed groove is introduced. The groove has a longitudinal extent corresponding to the direction of movement of the reciprocating movement of the slide element.

Advantageously, the locking mechanism on a lever element which cooperates with the slider element. The operative connection between the slide element and the lever element may preferably have a toothing, which has a toothed rack section present on the slide element and a toothed ring present on the lever element, so that the toothed rim meshes with the toothed rack section and thus by the reciprocating movement of the slide element a pivotal movement of the lever element can be generated about a lever axis. The sprocket has a center which preferably coincides with the lever axis of the lever element. The sprocket corresponds to a circular segment of a gear, which cooperates with the linear gear rack section. The rack portion is preferably mounted on the edge side of the slider element and is thus located opposite to a driver shoulder on an outer edge of the rectangular slider element.

The lever element in turn cooperates with the pivot bolt, thus forming the main component of the locking mechanism. The operative connection between the lever element and the pivot bolt takes place in such a way that upon pivoting movement of the lever element pivoting of the pivot bolt between the position protruding from the lock housing and the position retracted into the lock housing can be generated. In particular, the operative connection between the lever element and the pivot bolt can have a slide guide, in which a guide element is guided. The slotted guide in the pivot bolt may have a geometry which, in operative connection with the guide element of the lever element, blocks a pivoting movement of the pivot bolt into the position withdrawn into the lock housing, the pivot axis about which the pivot bolt is rotatable and the lever axis about which the lever element is rotatable form a triangular arrangement with the operative connection between the guide element and the slotted guide, and the slotted guide has a Locking edge, which prevents pivoting of the pivot bolt in the retracted position. The slotted guide can preferably be introduced in the pivot bolt, and the guide element is preferably arranged on the lever element. Of course, the slide guide could also be introduced in the lever element, so that the guide element is present on the pivot bolt.

It has been found to be particularly advantageous that a spring element is provided, that biases the slider element in the end positions of the reciprocating motion. Thus, the slider element obtains a bistable arrangement, and has between the end positions of the reciprocating motion to an indifferent or labile state of equilibrium, wherein the slider element has a stable state of equilibrium in the end positions. Consequently, the slider element snaps from a position between the end positions into the end position, which approaches the slider element. The spring element can either act directly on the slider element or the spring element is arranged in or on the lever element or in or on the pivot bolt to over the respective operative connection between the pivot bolt and the lever member and the slider element or via the operative connection between the lever member and the slider element to work this.

Furthermore, it is advantageous if the driver heels have an edge contour and preferably an edge radius which is or is determined such that a controlled force curve on the slide element on the rotation angle of the rotary member can be generated and in particular a smooth separation of the driving cam is made possible by the Mitnehmerabsätzen , If the rotary element is set in rotary motion and the driving cam comes against a driver's shoulder, initially the slide element is axially displaced by the movement of the driving cam. The driving cam moves over the driver's shoulder along until the contact of the driving cam is released against the driver's shoulder.

In an operative connection between the rotary member and the slider element, which is based on a rack meshing a toothed segment, there is the disadvantage that there is a fixed predetermined relationship between the displacement of the slider element and the swept angle range of the rotary element Advantage, if by special design of the edge contour of the Mitnehmerabsätze a definable by the geometry relationship can be produced. For example, the Mitnehmerabsätze may have a deviating from an involute tooth contour, so that a rotational angle-displacement curve between the rotating element and the slide element originates, which has its own, deviating from a technical toothing characteristic.

The edge contour of the Mitnehmerabsatzes may in particular be selected so that the Mitnehmemocken generated at a separation from the edge contour no jerk in the slider element. In particular, the Mitnehmerabsatz having an edge radius, so that a smooth separation and in particular a wear-free separation is possible, Basically, there is a line contact between the Mitnehmemocken and the Mitnehmerabsatz, and the Mitnehmemocken slides on the edge contour of Mitnehmerabsatzes, and the line contact is in the area the edge radius of the Mitnehmerabsatzes separated.

In order to further improve the operative connection between the driving cam and the driving shoulder or shoulders, the driving cam can have a radius section at least in the area of interaction with the driving shoulder sections. The line contact between the driving cam and the Mitnehmerabsatz migrates around the radius section on the driving cam, so that a particularly advantageous operative connection is formed.

Further measures which improve the invention will be described in more detail below together with the description of a preferred embodiment of the invention with reference to the figures.

Figur 1:

eine erste perspektivische Ansicht eines Ausführungsbeispiels des erfindungsgemäßen Schlosses mit einem geöffneten Schlossgehäuse zur Darstellung der Wirkverbindung zwischen dem Drehelement und dem Schieberelement,

Figur 2:

eine zweite perspektivische Ansicht des Ausführungsbeispiels des Schlosses gemäß Figur 1,

Figur 3:

eine perspektivische Ansicht sowie eine Seitenansicht eines Schieberelementes eines Schlosses gemäß der vorliegenden Erfindung und

Figur 4:

eine perspektivische Ansicht eines Drehelementes eines Schlosses gemäß der vorliegenden Erfindung.

Show it:

FIG. 1:

a first perspective view of an embodiment of the lock according to the invention with an open lock housing for showing the operative connection between the rotary member and the slide element,

FIG. 2:

a second perspective view of the embodiment of the lock according to FIG. 1 .

FIG. 3:

a perspective view and a side view of a slider element of a lock according to the present invention and

FIG. 4:

a perspective view of a rotating element of a lock according to the present invention.

In the FIGS. 1 and 2 is an embodiment of the lock 1 according to the invention shown in a respective perspective view, which is designed as a door lock for installation in a door leaf. The lock 1 has a lock housing 10, in which a locking mechanism is received. In the present case, the term "closing mechanism" covers all components involved, which form an operative connection between a lock cylinder for actuating the locking mechanism and a locking element 11, which is located between one of the lock housings 10 protruding position and a retracted into the lock housing 10 position is movable, wherein the locking element 11 may also be part of the locking mechanism.

The locking mechanism has two rotary elements 12, wherein a front-side rotary member 12 in FIG. 1 is shown, and in FIG. 2 a rotary member 12 is shown, which is substantially covered by a slider element 13. The rotary elements 12 can cooperate with an actuating unit such as a lock cylinder, a rotary knob, a stepper motor or the like (not shown), for which a slot 29 is introduced in the rotary member 12, in which an end on the lock cylinder or on the knob existing element can engage. If the lock cylinder or the rotary knob is rotated, that is, for example, the Schließzylinderkem is rotated by a key in rotation, the rotary member is also set in rotation via the element which engages in the slot 29. The rotary member 12 cooperates with the slider member 13, wherein the rotational movement of the rotary member 12 causes a reciprocating motion in the slider element 13. The rotational movement of the rotary member 12 is indicated with a double arrow shown in the form of an arc, the reciprocating motion of the slider element 13 being shown with a straight double arrow. With the first rotary element 12 (s. FIG. 1 ) and the second rotary element 12 (see FIG. FIG. 2 ), which are arranged on a first and on a second side of the rectangular, flat running slide element 13, the lock 1 can be designed with two lock cylinders or rotary knobs, and on each side of the lock 1, a lock cylinder, a stepper motor or a knob or For example, a combination of a door outside lock cylinder and a door inside rotary knob are connected to a respective rotary member to cause by rotational movement of the rotary member 12, a sliding movement in the same slider element 13.

The slider member 13 has a rack portion 18 which is engaged with a ring gear 19 which is disposed on a lever member 17. The lever member 17 is rotatably received about a lever axis 20 in the lock housing 10. Consequently, the lever 17 pivots about the lever axis 20 with linear reciprocating movement of the slide element 13.

At the end on the lever element 17, a guide element 22 in the form of a round bolt is arranged, which is received in a slotted guide 21. The slide guide 21 is inserted in the locking element 11, wherein the locking element 11 is designed as a pivot bolt 11 and can rotate about the pivot axis 11 a, in FIG. 1 the pivot bolt 11 is shown in a protruding from the lock housing 10 position, wherein FIG. 2 represents the pivot bolt 11 in a retracted position in the lock housing 10. The lock housing 10 has on the front side a forend 30, in which a recess 31 is present, through which the pivot bolt 11 can protrude from the lock housing 10. The geometric shape of the slide guide 21 has a locking edge 28 against which the guide element 22 abuts on the lever element 17 when the pivot bolt 11 is forcibly moved into the position retracted to the lock housing 10. If, however, the lever element 17 is rotated about the lever axis 20, then the guide element 22 does not reach against the blocking edge 28, and the pivot bolt 11 can be pivoted back into the lock housing 10 in order to open the lock 1. The movement of the pivot bolt 11 can consequently be caused by a reciprocating movement of the slider element 13, wherein the reciprocating movement of the slider element 13 is in turn generated by an operative connection with the one or more rotary elements 12, said operative connection will be explained in more detail below.

The rotary member 12 is designed like a disk and has a driving cam 14 which is arranged on a flat surface of the rotary member 12 and bolt-like executed. If the rotary member 12 is set in rotation, then the driving cam 14 moves on a circular path 14a. The slider element 13 has a first driver shoulder 15a and a second driver shoulder 15b which is arranged on the side opposite the first driver shoulder 15a. If the drive cam 14 rotates on the circular path 14a, it can alternately engage with the first driver shoulder 15a or with the second driver shoulder 15b. The Mitnehmerabsätze 15 a and 15 b are arranged on opposite sides of the slider element 13 and a receiving area 16, in which the rotary member 12 projects with the Mitnehmemocken 14. The cam heels 15a and 15b have an edge-like shoulder, wherein the shoulder of the first cam 15a points in a first direction of movement, and the shoulder of the second cam 15b points in an opposite, second direction of movement, Now, the rotary member 12 is rotated continuously in one direction, the slider element 13 performs a reciprocating movement, since the driving cam 14 can alternately engage with the first driver shoulder 15a and then with the opposite second driver shoulder 15b,

The FIG. 3 shows both a perspective view and a side view of the slider element 13. The perspective view of the slider element 13 illustrates the arrangement of the receiving area 16, which is visible on a first, front side and repeats on the rear, opposite side of the flat executed slide element 13. Furthermore, the boundary of the receiving region 16 with the first driver shoulder 15a and the opposite, second driver shoulder 15b becomes clear. The slider element 13 has a spring 26 which can engage in a groove 27 in the lock housing 10 or as part of the lock mechanism, so that the slide element 13 is guided in the direction of the reciprocating movement, see groove 27 in FIG. 2 , To the linear movement of the slider element 13 on the lever element 17, a rack section 18 with three teeth is arranged on the slide member 13 according to the pian side view on the lower side. Thus, a movement of the slider element 13 in the double arrowed direction shown, see FIG. 2 , Right figure, a rotational movement of the lever member 17 are generated about the lever axis 20, see FIGS. 1 and 2 ,

As in the plan-side representation of the slide element 13 in FIG. 3 shown, the Mitnehmerabsätze 15 a and 15 b are formed in the form of a respective height jump with an associated edge contour 23 and respective edge radii 24. It can thus be achieved that a smooth release of the line connection between the driving cam 14 and the region of the edge radius 24 is made possible when sliding the driving cam 14 on the edge contours 23. In particular, no edge wear occurs when the edge of the Mitnehmerabsatzes 15 a and 15 b is broken by an edge radius 24.

FIG. 4 shows a perspective view of the rotary member 12 from the side of the flat surface 12 a, on which the driving cam 14 is applied. The driving cam 14 connects to the slot 29, in which an element of the lock cylinder can engage. By means of a Durchmesserabsatzes 32, the rotary member 12 can be mounted in the lock housing 10 of the lock 1, for example in a suitably sized round opening in the lock housing or in a corresponding receiving part, preferably made of a plastic material or a sheet metal element. In order to achieve a flat contact of the rotary member 12 on the surface of the receiving portion 16 in the slider element 13, a receiving shoulder 33 is provided which is provided as a round projection on the flat surface 12a of the rotary member 12 and the slot 29 includes. Thus, the rotary member 12 can be pressed onto the surface in the receiving portion 16 of the slider element 13 to simultaneously form a kind of axial sliding bearing. Further, the circular path 14a is shown, rotates about the Mitnehmemocken 94 when the rotary member 12 is rotated about its axis of rotation in rotation. It can also be seen that the driving cam 14 has a radius section 25, which slides on the driver shoulder 15a and 15b, in particular on the edge contour 23.

The invention is not limited in its execution to the above-mentioned preferred embodiment, Rather, a number of variants is conceivable, which makes use of the illustrated solution even with fundamentally different types of use. All of the claims, the description or the drawings resulting features and / or advantages, including design details, spatial arrangements and method steps may be essential to the invention both in itself and in various combinations. In particular, the advantageous embodiment of the operative connection between the rotary member 12 and the slider element 13 can also be used for a lock 1 in which the locking element 11 is designed as a linearly moved locking element 11.

LIST OF REFERENCE NUMBERS

1

lock

10

lock housing

11

Locking element, pivoting bolt

11a

swivel axis

12

rotating member

12a

plane surface

13

slide element

14

Mitnehmemocken

14a

orbit

15a

first driver's sales

15b

second driver's sales

16

reception area

17

lever member

18

Rack section

19

sprocket

20

lever axis

21

link guide

22

guide element

23

edge contour

24

edge radius

25

radius portion

26

feather

27

groove

28

blocking edge

29

slot

30

stulp

31

recess

32

Diameter paragraph

33

seating shoulder

Claims (15)

1. A lock (1), in particular a door lock (1), with a lock housing (10), in which locking mechanics are accommodated, and with a latch-bolt element (11) which is displaceable by means of the locking mechanics between a position protruding from the lock housing (10) and a position retracted into the lock housing (10), wherein the lock mechanics include at least one rotating element (12), which can be rotated by means of at least one actuating unit, such as a locking cylinder, a rotating knob, a step motor and/or the like, and wherein the lock mechanics include a slider element (13), which is in an operative connection with the rotating element (12) in such a way that the slider element (13) performs a back and forth movement when the rotating element (12) is rotating in the same direction of rotation, wherein
   the operative connection between the rotating element (12) and the slider element (13) includes at least one driver cam (14) provided at the rotating element (12), characterized in that

   - the slider element (13) includes at least one reception area (16) in the shape of a depression, into which the rotating element (12) projects at least partially, and

   - the slider element (13) includes a first driver shoulder (15a) such that the slider element (13) by means of interaction with the driver cam (14) can be moved into the first direction, and in that

   - the slider element (13) includes a second driver shoulder (15b) opposite the first driver shoulder (15a) such that the slider element (13) can be moved into a second direction opposite to the first direction by means of interaction with the driver cam (14).
2. The lock (1) according to claim 1, characterized in that the latch-bolt element (11) is configured as a pivoting bolt (11), which is pivotable about a pivoting axis (11 a) between the position protruding from the lock housing (10) and the position retracted into the lock housing (10).
3. The lock (1) according to claim 1 or 2, characterized in that the rotating element (12) is configured disc-like and wherein the driver cam (14) is disposed on a plane surface of the disc-like rotating element (12).
4. The lock (1) according to claim 3, characterized in that the driver cam (14) rotates on a circular path (14a) when the rotating element (12) is brought into rotation, wherein the circular path (14a) is disposed in the reception area (16) of the slider element (13).
5. The lock (1) according to claim 3 or 4, characterized in that the first driver shoulder (15a) and the second driver shoulder (15b) border at least partially the reception area (16) of the slider element (13) and/or project into the latter.
6. The lock (1) according to any of the aforementioned claims, characterized in that the driver cam (14) is configured pin-like or bolt-like or is formed like a shoulder or an edge on a plane surface of the disc-like rotating element (12) for cooperating with the driver shoulders (15a, 15b), in particular for sliding along them.
7. The lock (1) according to any of the aforementioned claims, characterized in that the a first rotating element (12) is disposed on a first side and a second rotating element (12) is disposed on a second side of the slider element (13), wherein the slider element (13) includes a reception area (16) on either side, into which a respective rotating element (12) projects or borders said area.
8. The lock (1) according to any of the aforementioned claims, characterized in that the locking mechanics include a lever element (7), which cooperates with the slider element (13).
9. The lock (1) according to claim 8, characterized in that the operative connection between the slider element (13) and the lever element (17) includes a toothing, wherein a toothed rack section (18) is disposed at the slider element (13) and a toothed ring (19) at the lever element (17), such that the toothed ring (19) meshes with the toothed rack section (18) and the back and forth movement of the slider element (13) is able to produce a pivoting movement of the lever element (17) about a lever axis (20).
10. The lock (1) according to claim 8 or 9, characterized in that the lever element (17) cooperates with the pivoting bolt (11) in such a way that upon a pivoting movement of the lever element (17) a pivoting of the pivoting bolt (11) can be produced between a position protruding from the lock housing (10) and a position retracted into the lock housing (10), wherein the pivoting bolt (11) is pivotable about a pivoting axis (11a).
11. The lock (1) according to any of the claims 8 to 10, characterized in that the operative connection between the lever element (7) and the pivoting bolt (11) includes a coulisse guide (21) in which a guiding element (22) is guided.
12. The lock (1) according to any of the claims 8 to 10, characterized in that the coulisse guide (21) is fitted into the pivoting bolt (11) and wherein the guiding element (22) is preferably disposed at the lever element (17).
13. The lock (1) according to any of the aforementioned claims, characterized in that a spring element is provided, which biases the slider element (13) into the terminal positions of the back and forth movement.
14. The lock (1) according to any of the aforementioned claims, characterized in that the driver shoulders (15a, 15b) have an edge contour (24) and preferably present an edge radius (25) which is, respectively are intended to be able to produce a definable force development onto the slider element (13) and in that in particular the driver cam (14) can be separated from the driver shoulders (15a, 15b) without jerking.
15. The lock (1) according to any of the aforementioned claims, characterized in that the driver cam (14) includes a radius section (26) at least in the interaction area with the driver shoulders (15a, 15b).

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