Lock

Abstract

A lock with a bolt mechanism (6) has two segments (10, 11) driven by a locking cylinder, one of the segments (10) driving the bolt mechanism (6) to lock and the other of the segments (11) driving it to unlock. Furthermore, a locking device (32) is actuated, which blocks the bolt mechanism (6) in the locked position. This provides the lock with a high level of protection against manipulation.

Description

[0001] The invention relates to a lock with a bolt assembly having a bolt for selectively driving the lock into a locked or unlocked position, with a receptacle for a locking cylinder, with a movably guided segment which projects into the movement range of a driver of a locking cylinder arranged in the receptacle, wherein the segment is designed for controlling the bolt and wherein a second segment projects into the movement range of the driver of the locking cylinder mounted in the receptacle, wherein the segments are connected to each other with independent components or devices and the second segment can drive a further bolt or locking device.

[0002] Such a lock is known, for example, from EP 2 674 555 A2. In this lock, a leading arc and a trailing arc are arranged in the receptacle for the lock cylinder. By driving the follower via the lock cylinder, the arcs drive a slide to lock the lock in one direction or the other. The shoulders of the arcs opposite the follower are dimensioned such that the slide can be moved between its locked and unlocked positions without twisting the arcs. A disadvantage of this lock is that it is very easily manipulated by driving the slide.

[0003] A lock is known, for example, from DE 10 2006 059 568 B4, comprising a main lock and several subsidiary locks. In this lock, a C-shaped component encloses the receptacle for the locking cylinder. The C-shaped component is rotated when the locking cylinder, located in the receptacle, is driven. A toothed mechanism is arranged on the outside of the C-shaped component, which drives the bolting mechanism. The bolting mechanism then drives the bolt and a slide for driving the subsidiary locks.

[0004] German patent DE 10 2014 215 176 A1 discloses a lock in which a stop of a drive element is sandwiched over a stop of a drive arc. These stops project into the movement range of a driver of a locking cylinder. A disadvantage of this lock is that the drive element cannot be moved back by the drive of the locking cylinder.

[0005] German patent DE 20 2013 000 921 U1 discloses a panic lock in which a locking wheel is coupled to a connecting rod slide. Furthermore, the panic lock has a lever that can be operated by a nut arm and cylinder, with which a spring-loaded locking pawl can be retracted.

[0006] The invention is based on the problem of further developing a lock of the type mentioned above in such a way that it allows for the greatest possible variety of control options within the lock.

[0007] This problem is solved according to the invention by the fact that the locking device is designed in two parts and a locking sequence is determined by the fact that oneThe connecting rod is connected to a lower part of the locking mechanism and can be held by a button which, when the door is closed, releases the lower part of the locking mechanism, which has a clearance to the upper part of the locking mechanism, so that a connected gearbox, which can be driven by the second segment, is not moved for the control of the bolt.

[0008] This design allows the two segments to perform different tasks. The second segment can, for example, drive another bolt or locking mechanism, or even a completely different component. An additional bolt or locking mechanism easily prevents the lock from being moved into the unlocked position by pushing back the bolt. The lock therefore offers a high level of protection against unauthorized unlocking. The ability to control an additional component makes the lock extremely versatile.The locking mechanism's operation can be improved because the bolt assembly is designed in two parts, and a locking sequence is defined by the fact that the drive rod is connected to a lower part of the bolt assembly and can be held in place by a push button. When the door is closed, this button releases the lower part of the bolt assembly, which has clearance to the upper part. Pressing the button releases the drive rod, allowing it to fall by gravity along with the lower part of the bolt assembly, thus engaging any secondary locking elements.The clearance between the two parts of the locking mechanism decouples this initial mechanism from the lock's gearbox, preventing it from being dragged along during the first locking step. This results in a particularly wear-resistant and smooth-running mechanism. As soon as the upper part of the locking mechanism is moved in the unlocking direction by actuating the gearbox, it carries the lower part along in the opposite direction of the clearance.

[0009] The lock allows for the control of a variety of different components if one segment is designed to drive the bolt and the other to drive a slide. This allows, for example, the bolt to be driven into the locked position independently of the slide. A handle can also be driven via such a slide to retract a latch. The slide can, for example, actuate a connecting rod to control secondary locks and thus another locking mechanism. Likewise, the slide can actuate a locking device to block the bolt.

[0010] According to another advantageous embodiment of the invention, the bolt can be driven into the locked position by one segment and into the unlocked position by the other segment, provided that the drive slide is positioned opposite an unlocking element and that the unlocking element is configured to drive the bolt into the unlocked position. This design provides the lock with a high level of protection against unauthorized unlocking. For drive purposes, the unlocking element can have a pin that engages in a cam track of the bolt.

[0011] According to another advantageous embodiment of the invention, reliable guidance of the segments is particularly easy if the segments are arc-shaped and guided in adjacent components.

[0012] According to another advantageous embodiment of the invention, the lock is particularly simple in design if at least one of the segments is connected to a lever arm.

[0013] According to another advantageous embodiment of the invention, the structural effort required to drive the bolt into the locking position can be kept particularly low if the lever arm has a pin that penetrates a cam guide for controlling the bolt.

[0014] According to another advantageous embodiment of the invention, controlling a device by means of several rotations of the locking cylinder can be achieved if at least one of the segments is connected by a toothed linkage and if the toothed linkage is part of the transmission. The transmission allows the bolt to be moved into the unlocked position and, for example, also to drive a connecting rod for controlling auxiliary locks.

[0015] According to another advantageous embodiment of the invention, the segment guides are designed to be particularly simple if one segment has a guide groove and the other segment has a guide pin, and if the guide pin of one segment engages in the guide groove of the other segment. This design guides the segments against each other. A further advantage of this design is that the guide groove of one segment can be limited, allowing the guide pin of the other segment to act as a driver.

[0016] According to another advantageous embodiment of the invention, further improvement of the guidance of the segments is achieved if the segments and the housing parts opposite these segments have corresponding guide pins and guide grooves.

[0017] According to another advantageous embodiment of the invention, a temporally separated control of the components of the locking mechanism can be easily achieved if the segments have different dimensions in their sections projecting into the movement range of the locking cylinder's driver. This design makes it possible to control the locking mechanism for the bolt with one segment and the bolt itself with the other segment. This allows the locking mechanism to be released first, followed by the movement of the bolt.

[0018] Unauthorized unlocking of the locking mechanism, for example by manually pushing back the bolt, can be easily prevented according to another advantageous embodiment of the invention if the second segment is coupled to a locking device for blocking or releasing the locking mechanism. With this design, the lock has a locking device with which the locking mechanism can be blocked. Therefore, to drive the locking mechanism, it is first necessary to actuate the locking device.

[0019] According to another advantageous embodiment of the invention, the structural complexity of the locking device can be kept particularly low if the locking device has a locking element and if the locking element is deflected by a force into a position that blocks the locking device and can be moved into the release position when driven by the second segment. The locking element can be deflected by gravity or by the force of a spring element.

[0020] According to another advantageous embodiment of the invention, the locking device is structurally particularly simple if it has an unlocking element opposite the locking element and if, when the unlocking element is actuated, the locking element can be driven against the deflecting force into the position releasing the locking device. For example, the transmission can have a cam to actuate the unlocking element, which deflects the unlocking element when the second segment moves.

[0021] The invention allows for numerous embodiments. To further illustrate its basic principle, one of these is shown in the drawing and described below. This shows in Fig. 1 a lock in a basic position, Figs. 2 - 5 the lock from Figure 1 in different positions, Fig. 6 an enlarged view of two segments of the lock made of Figure 1, Fig. 7 a side view of the segments made of Figure 7 , Fig. 8 a view from below of the segments made of Figure 7 Fig. 9 enlarges components of a locking device and an unlocking element of the lock. Figure 1 , Fig. 10 the locking device made of Figure 9 in a perspective view, Fig. 11 the locking device made of Figure 9 in another perspective view.

[0022] Figure 1Figure 1 shows a lock with a lock case 1, a bolt 2, and a latch 3. The latch 3 is biased into the illustrated protruding position by a spring element 4 and can be moved into a retracted position by a cam 5 or by a bolt assembly 6. In a preferred embodiment of the invention, which is not explicitly shown here, the bolt assembly 6 is designed in two parts and consists of a lower and an upper part, which are connected to each other by a guide having a clearance. Thus, both parts of the bolt assembly 6 can be moved independently of each other within defined limits. Furthermore, the lock is equipped with a drive rod 7, which has a positive locking connection with the lower part of the bolt assembly 6.The drive rod 7 serves, for example, to actuate secondary locking elements (not shown) and is held in the unlocked position by a push button 50 until the button is pressed when the door leaf is closed. This releases the drive rod 7, allowing it to fall into the locked position by gravity, together with the lower part of the bolt assembly 6, without moving the upper part of the bolt assembly 6 or any associated gear 22. The bolt 2 and the drive rod 7 can be actuated by the bolt assembly 6 by means of a locking cylinder inserted in a receptacle 8 of the lock. For the sake of simplicity, only one driver 9 of the locking cylinder is shown, into whose range of motion two segments 10, 11 project. The segments 10, 11 are arc-shaped and extend over arcs of different sizes.Furthermore, the segments 10 have guide pins 12 and guide grooves 13, 14, by which they are guided against each other and against side walls 15 of the lock case 1. For the sake of simplicity, only the side wall 15 located behind the segments 10, 11 is shown.

[0023] One of the segments 10 has a lever arm 16 with a pin 17, which is concealed here. The pin 17 engages in a cam guide 18 of a bolt tail 19 of the bolt 2. By deflecting the lever arm 16 when the segment 10 connected to it is actuated, the bolt 2 is moved into an unlocked position. The second segment 11 has a Figure 8 illustrated toothing 20, with which it is in Figure 2The pinion 21 of the gear 22, as shown, drives the gear 20. The toothing 20 is designed as a partial gear ring. The pinion 21 of the gear 22 drives, via a large-diameter gear 23, a small-diameter gear 24 and a rack 25, a slide 26. The slide 26 is opposed by a shoulder 27 to a control pin 28 of a pivotable release element 29. The release element 29 has a second pin 30, concealed here, which engages in a further cam guide 31 of the bolt tail 19. By driving the release element 29 via the gear 22 and the slide 26, the bolt 2 can be retracted into the unlocked position shown, located in the lock case 1. The slide 26 is also coupled to the connecting rod 7.

[0024] Furthermore, the lock has a locking device 32 for blocking the bolt assembly 6. The locking device 32 has a pivotally mounted locking element 33, which is opposite a pivotally mounted unlocking element 34. The unlocking element 34 is opposite a cam 35 driven by the gear 22. The locking element 33 has a control pin 36, which projects into the plane of the unlocking element 34. In the position shown, the locking element 33 rests with a support edge 37 on a side edge 38 of the bolt tail 19. The force for the locking element 33 to rest on the side edge 38 can be generated by gravity or a spring element (not shown).

[0025] Figure 1 The lock is shown in an unlocked position, in which the latch 3 can be retracted into the lock case 1 by actuating the push rod 5. If the lock is driven outwards from the Figure 1In the position shown, turning the driver 9 counterclockwise, one arrives at the position shown in Figure 2 The locking position shown is shown. During operation, the segment 10, which has the lever arm 16, pivots along the guide grooves 14, and one pin 17 in the cam guide 18 is moved in the bolt tail 19. This extends the bolt 2 from the lock case 1. The locking element 33 slides along the side edge 38 of the bolt tail 19 and, due to gravity or a spring force (not shown), falls with a support edge 39 behind a rear edge 40 of the bolt tail. This prevents the bolt 2 from being pushed into the lock case 1 by hand. Compared to the position shown in Figure 1 The second segment 11, connected to the gearbox 22, is not moved.

[0026] To unlock, the driver 9 is pivoted clockwise until it moves the second segment 11. This position is in Figure 3The following is shown. First, the gearbox 22 is driven by the second segment 11. The gearbox 22, by driving the rack 25, moves the slide 26. Simultaneously, the gearbox 22 pivots the cam 35, which deflects the unlocking element 34 and removes the locking element 33 from the range of motion of the bolt tail 19. Since the segment 10, which has the lever arm 16, is shorter than the second segment 11, it initially remains in its position.

[0027] Starting from the position, one drifts Figure 3 As the driver 9 is turned further clockwise, the bolt 2 can now be retracted against the control pin 28 of the release element 29 by the drive of the shoulder 27 of the slide 26. The control pin 28 of the release element 29, driven by the shoulder 27, displaces the release element 29 such that the second pin 30 retracts the bolt tail 19 over the second cam guide 31. This position is in Figure 4 depicted.

[0028] The further drive of the slide 26 then retracts the latch 3 into the lock case 1 and moves the connecting rod 7. An actuating element 41 connected to the connecting rod 7 has a latch retraction pin 42, which pivots a latch retraction lever 43 and thus retracts the latch 3. This position is in Figure 5 depicted.

[0029] Figure 6 Figure 1 shows enlarged views of segments 10 and 11 and the driver 9 of the lock. The driver 9 is part of a locking cylinder (not shown) inserted into the receptacle 8 of the lock. Segments 10 and 11 each have stop shoulders 44-47, which project into the movement area of ​​the driver 9. Figure 7 shows segments 10 and 11 in a side view and Figure 8 in a view from below. Figure 7shows that one of the segments 10 has a guide pin 48, which is inserted into the one already in the Figure 1 and 6 The guide groove 14 of the other segment 11 is penetrated. Figure 8 The toothing 20 arranged on the second segment 11 for driving the gearbox 22 can be seen. The segments 10, 11 each have guide pins 12, 49 pointing away from each other, with which they engage in the guide grooves 13 of the side walls 15 of the lock case 1.

[0030] Figure 9 Figure 1 shows the locking device 32 of the lock with the locking element 33 and the unlocking element 34 and the release element 29. The cam 35, which can be driven by the transmission 22 to deflect the unlocking element 34, is also shown. Figures 10 and 11The locking device 32 is shown in different perspective views. It can be seen that the locking element 33, the unlocking element 34, and the release element 29 are arranged in different planes. The unlocking element 34 is located in the plane of the cam 35. The control pin 36 of the locking element 33 projects into the plane of the unlocking element 34.

Claims

1. Lock comprising a bolting device (6) having a bolt (2) for selectively driving the lock into a locking position or unlocking position, comprising a receptacle (8) for a locking cylinder, comprising a movably guided segment (10) which projects into the movement range of a driver (9) of a locking cylinder (8) arranged in the receptacle, the segment (10) being designed to control the bolt (2) and a second segment (11) projecting into the movement range of the driver (9) of the locking cylinder (8) mounted in the receptacle, the segments (10, 11) being connected to mutually independent components or devices and the second segment (11) being able to drive a further bolting or blocking device, characterized in that the bolting device (6) is designed in two parts and a locking sequence is determined in that a drive rod (7) is connected to a lower part of the bolting device (6) and can be held by a button (50) which, when the door is closed, releases the lower part of the bolting device (6), which has a clearance with respect to the upper part of the bolting device (6) so that a gear (22), which is connected to this upper part and can be driven by the second segment (11), is not moved for the control of the bolt (2).

2. Lock according to claim 1, characterized in that one of the segments (10) is designed to drive the bolt (2) and the other of the segments (11) is designed to drive a slider (26).

3. Lock according to claim 2, characterized in that the slider (26) is opposite an unlocking element (29) to drive it and in that the unlocking element (29) is designed to drive the bolt (2) into the unlocking position.

4. Lock according to at least one of the preceding claims, characterized in that the segments (10, 11) are curved and are guided in adjacent components.

5. Lock according to at least one of the preceding claims, characterized in that at least one of the segments (10) is connected to a lever arm (16).

6. Lock according to claim 5, characterized in that the lever arm (16) has a pin (17) which penetrates into a link guide (18) for controlling the bolt (2).

7. Lock according to at least one of the preceding claims, characterized in that at least one of the segments (11) is connected to toothing (20) and in that the toothing (20) is part of a gear (22).

8. Lock according to at least one of the preceding claims, characterized in that one of the segments (11) has a guide groove (14) and the other segment (10) has a guide pin (48) and in that the guide pin (48) of one segment (10) penetrates into the guide groove (14) of the other segment (11).

9. Lock according to at least one of the preceding claims, characterized in that the segments (10, 11) and housing parts opposite these segments (10, 11) have corresponding guide pins (12, 49) and guide grooves (13).

10. Lock according to at least one of the preceding claims, characterized in that the segments (10, 11) have different dimensions in their portions which project into the movement range of the driver (9) of the locking cylinder (8).

11. Lock according to at least one of the preceding claims, characterized in that the second segment (11) is coupled to a blocking device (32) for blocking or releasing the bolting device (6).

12. Lock according to claim 11, characterized in that the blocking device (32) has a blocking element (33) and in that the blocking element (33) is deflected by a force into a position blocking the bolting device (6) and can be moved into the release position when driven by the second segment (11).

13. Lock according to claim 11 or 12, characterized in that the blocking device (32) has an unblocking element (34) opposite the blocking element (33) and in that when the unblocking element (34) is driven, the blocking element (33) can be driven against the deflecting force into the position releasing the bolting device (6).

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