CZ296205B6 - Device for controlling door locks, particularly motor vehicle door locks - Google Patents

Abstract

In the present invention, there is disclosed a device for controlling door locks, particularly motor vehicle door locks, having arranged between a sliding output element (5) of a positioning drive (4) a transfer mechanism with "SAFE" gear. Said transfer mechanism has a sliding intermediate member (7) introduced between said sliding output element (5) of the positioning drive (4) and a lock control element (6). Said "SAFE" gear has a "SAFE" catch (8) "SAFE" that is assigned to said sliding intermediate member (7). The sliding output element (5) of the positioning drive (4) is provided with a positioning head (12) having a pressure surface (20) for an adjustment pin (23) of the lock control element (6), further a press-off projection (21) for said "SAFE" catch (8) and a driving surface (22) for a driver (25) of the sliding intermediate member (7). The lock control element (6) being mounted in swingable manner between "released" and "locked" positions, reaches by its adjustment pin (23) between the pressure surface (20) of the positioning head (12) and a lateral projection (26) of the sliding intermediate member (7).

Description

Technical field

BACKGROUND OF THE INVENTION The invention relates to a device for operating door locks, in particular vehicle doors, in particular a transmission mechanism with a "SAFE" device which is interposed between a sliding output element of a positioning drive and a lock control element.

BACKGROUND OF THE INVENTION

Electric control units are used to control vehicle door locks, the electric motors of which, on the basis of the signals given by the control unit, exert a control force through which the respective lock control element is adjusted via the transmission mechanism. These transmission mechanisms, which are already quite complex in themselves, become even more complex when the SAFE device is used. This device, when the lock is locked, blocks its control element against movement. The 'SAFE' function is therefore important in terms of preventing unauthorized entry into the vehicle and is currently required by car manufacturers for an increasing number of locks.

A disadvantage of these mechanisms, i.e. the described transmission mechanisms with the SAFE device, is the considerable complexity which results mainly from the large number of components required to provide the transmission of the actuating force and to provide the SAFE function. In order to ensure the functionality of these mechanisms, it is necessary to maintain a relatively high accuracy of the respective components, which means more demanding production. This is not particularly easy with these very small components. In addition, a large number of moving parts cause higher noise levels and higher space requirements. This leads to larger cabinets in which the mechanism is mounted.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide a device for controlling door locks, in particular vehicle doors, whose transmission mechanism with a SAFE device is maximally simplified by minimizing the number of components required, thereby achieving both maximum functional reliability and minimum noise and space requirements.

This object is achieved by a device for controlling door locks, in particular vehicle doors, with a positioning drive, a transmission mechanism having a "SAFE" device according to the invention being inserted between the sliding output element and the lock control element, intermediate member inserted between the sliding output element of the positioning drive and the lock control element, that the "SAFE" device has a latch "SAFE" assigned to the sliding intermediate element and that the sliding output element of the positioning drive has a positioning head for the sliding intermediate element, latch "SAFE" of the castle.

In the simplest embodiment, the transmission mechanism with the "SAFE" mechanism consists only of a sliding intermediate member and a "SAFE" latch.

For reliable operation, the positioning head is provided with a pressing surface for the adjusting pin of the lock control element, a push-on projection for the "SAFE" latch and a driving surface for the carrier of the sliding intermediate member.

For reasons of simplicity and reliability, it is advisable for the lock operating element, pivoted between the "unlocked" and "locked" positions, to intersect with its adjusting pin between the push face of the positioning head and the lateral projection of the sliding intermediate member.

-1 CZ 296205 B6

To achieve a reliable "SAFE" function, the "SAFE" latch, spring-mounted, pivoted, has a tooth on the "SAFE" arm that locks the sliding intermediate member in the "SAFE locked" position.

To reliably lock the sliding intermediate member in the "locked with SAFE" position, the latch tooth "SAFE" is assigned a recess in the sliding intermediate member.

For functionally reliable unlocking of the sliding intermediate member, it is advantageous if the push-in projection of the positioning head engages the inclined surface on the "SAFE" latch arm "SAFE". For the same purpose, an end stop is assigned to the sliding intermediate member in the "locked with SAFE" position.

In order to mechanically lock the lock, the positioning head in the unlocked position is in its initial position, in which its pressing surface lies outside the range of movement of the adjusting pin of the lock operating element. For the same purpose, the latch "SAFE" has an actuating arm to which the radial protrusion of the key pad cam member is assigned.

The lock control device according to the invention makes it possible to lock both the lock and the "SAFE" function using only three components, one of which is additionally formed on the sliding output element of the positioning drive used. Due to the small number of moving parts used, a significantly lower noise level is achieved and the installation space is reduced. Simplicity also results in high functional reliability. The requirement to ensure mechanical control of the lock by means of a key is also ensured in the event of a power failure.

Overview of the drawings

An example of a possible embodiment of the device according to the invention is shown in the accompanying drawings, in which Fig. 1 represents a view into the cabinet of the door lock control unit of the vehicle with schematic representation of the lock itself and the control unit; "In each position.

DETAILED DESCRIPTION OF THE INVENTION

The control unit housing 1 is assigned to the control box housing 3 and is located in the interior of the vehicle door. A positioning drive 4, for example a stepper motor, having a sliding output element 5 is arranged in the control unit housing 1. In the context of the invention, the displacement output element 5 may also be an output member of the gears that are associated with some positioning drives 4 to achieve the displacement.

The positioning drive 4 is connected to the control unit 2. The control unit 2, based on an impulse received from the remote control or from the position sensor 10 of the cam member 9 connected to the rotary part of the key cylinder, gives the corresponding control signal to the positioning drive 4. The control unit 2 is connected to it by the positioning drives 4 of the control units of the locks of several vehicle doors, for example all four side doors or even the fifth door. The cam member position sensors 10 will then be disposed only in the locks of those doors having a key insert, e.g. both front doors.

A transmission mechanism with a "SAFE" device is arranged between the sliding output element 5 of the positioning drive 4 and the lock control element 6. In this case, the lock operating element 6 is rotatably mounted in the housing 1 of the control unit, one end position of which corresponds to the unlocked state of the lock and the other to the locked state of the lock. A spring is assigned to the lock control element 6, which is arranged in such a way that the lock control element 6 always holds it in the position it occupies, i.e. "locked" or "unlocked". The particular linkage of the lock control element 6 to the lock mechanism is not shown because it depends on the design of the lock used and this is not essential for the technical solution. The transmission mechanism with the "SAFE" mechanism is represented by a sliding intermediate member 7 which is freely displaceably mounted in a guide (not shown) of the control unit housing 1 and a latch 8 "SAFE" which is rotatably mounted on the axis 15 in the control unit housing 1; sliding intermediate member 7.

The sliding output element 5 of the positioning drive 4 has at its end a positioning head 12 which is provided with elements for adjusting the lock control element 6, the sliding intermediate member 7 and the latch 8 "SAFE".

For adjusting the lock control element 6 from its "locked" position to the "unlocked" position, the positioning head 12 has a pressing surface 20 which acts on the adjusting pin 23 formed on the lock control element 6. These locked and unlocked positions of the lock control element 6 correspond to the same states of the lock itself.

To move the latch 8 "SAFE" from the "SAFE" position, the positioning head 12 is provided with a push outlet 21 which acts on the inclined surface 18 formed at the end of the "SAFE" arm 16 of the latch 8 "SAFE". In this case, the "SAFE" arm 16 of the latch 8 "SAFE" is provided with a tooth 17 on the side adjacent to the sliding intermediate member 7 and the sliding intermediate member 7 with corresponding unmarked recesses.

To move the sliding intermediate member 7 from its first unlocked position corresponding to the "unlocked" position of the lock actuator 6 to its second unlocked position corresponding to the "locked" position of the lock actuator 6, the positioning head 12 is provided with a gripping surface 22. This gripping surface 22 acts on the gripper 25 formed at one end of the sliding intermediate member 7. The other end of the sliding intermediate member 7 is provided with a lateral projection 26 for receiving the adjusting pin 23 of the lock operating element 6.

The lock operating element 6 has, in addition to the adjusting pin 23, an output arm 24 through which it acts on the lock in the sense of locking and unlocking. The outlet arm 24 can act, for example, on a tilting lever (not shown), which is pivotably mounted in the lock housing 3 and in its cutout there is an intermediate member. The latter assumes two positions according to the position of the tilting lever, which in the follow-up (also not shown) lock mechanism means the locked or locked state of the lock. Furthermore, the lock operating element 6 is provided with a toothed segment 13 which engages with the toothed element 11 of the cam member 9. The cam member 9 is provided with a radial protrusion 27 for contact with the actuating arm 19 of the latch 8 "SAFE". The toothed element 11 ^{in the} form of a ring, the cam member 9 is pivotably supported, but only within a predetermined angle range - meaning that is explained in the section concerning operations. The lock operating element 6 is also provided with an arm (not shown) to which the locking pin rod is connected.

The operation of the device will be explained with reference to Figs. 2-7, which represent the individual states of the transmission mechanism and the "SAFE" device. In all of these figures, the important positions O, V, S, Z of the positioning head 12 relative to its driving surface 22 are indicated. The positions O and Z are extreme positions and it should be pointed out that this is actually only the dead center of the positioning head 12. which does not remain.

Giant. 2 corresponds to the lock state "locked". The positioning head 12 occupies the starting position V, the lock actuating element 6 is swiveled in the "locked" position, the sliding intermediate member 7 is moved to the right, and in this position the spring stopper (not shown) returns it slightly back to the left. does not fit into the recess of the sliding intermediate member 7.

-3GB 296205 B6

From the "locked" position (Fig. 2) to the "unlocked" position (Fig. 6), the device is driven by the control signal issued by the control unit 2. This signal is given after receiving an input pulse from either the remote control or the cam position sensor 10 The control signal of the control unit 2 actuates the positioning drive 4, whose sliding output element 5 with the positioning head 12 begins to move from the starting position V towards the unlocking position O. In this case, the lock operating element 6 is moved to the " unlocked " position by the pressure surface 20 and the adjusting pin 23. The sliding intermediate member is also displaced over the adjusting pin 23

7. Upon reaching the unlocking position (FIG. 5) with the positioning head 12 at the left dead center, the lock control element 6 and the sliding intermediate member 7 remain in this position, i.e. the unlocked position, but the positioning head 12 returns to its position. starting position V (fig. 6). Here the control signal of the control unit 2 ends, the lock is released and the door can be opened.

From the "unlocked" position (Fig. 6), the "locked" position is again reached based on the respective control signal issued by the control unit 2. This signal is given after receiving an input pulse from either the remote control or the cam member position sensor 10. the signal of the control unit 2 actuates the positioning drive 4, whose sliding output element 5 with the positioning head 12 begins to shift from the starting position V to the locking position Z. In this case, the positioning head 12, by means of the driving surface 22, moves the sliding intermediate member 7 over the carrier 25, and it moves the lock operating element 6 to the "locked" position via the side projection 26. The condition that the gripping surface 22 engages the gripper 25 is shown in FIG. 7. When the Z position is reached, the positioning head 12 is at the right dead center, the sliding intermediate member 7 compresses the spring stop (not shown) and latch 8 'SAFE'. 17 into the recess of the sliding intermediate member 7 (FIG. 4). If the control signal 2 has only been actuated by the control unit 2 for locking purposes, the positioning head 12 returns from its locking position Z to its initial position V. In this case, its pushing projection 21 rests on the inclined surface 18, thereby swinging the SAFE latch 8 against force As a result, the tooth 17 releases the sliding intermediate member 7, which is slightly shifted to the left by the end stop not shown (FIG. 2).

The position "locked with SAFE" from the "unlocked" position is the same as in the previous case, with the exception that the control signal of the control unit 2 stops the positioning head 12 from retracting from the Z position in the "SAFE" position S (fig. 3). That is, the push-off protrusion 21 does not come into contact with the inclined surface 18 of the latch 8 of the " SAFE ", whose tooth 17 thus remains engaged in the recess of the sliding intermediate member 7. In this position the movement of the sliding intermediate member 7 is locked. The lock cannot therefore be unlocked even when the locking pin is pulled out, since it is also blocked due to the connection to the lock operating element 6. In order to prevent mechanical damage to the transmission mechanism when acting on the locking pin when the mechanism occupies a "locked with SAFE" position, it is advisable to incorporate a resilient member into the connection of the locking pin with the lock control element 6.

From the locked position with the SAFE function (Fig. 3) the lock is released again on the basis of the corresponding control signal issued by the control unit 2 to the positioning drive 4 after receiving an input pulse from the remote control or the cam member position sensor 10. the head 12 from its "SAFE" position S towards the unlocking position O, whereby first the push-out projection 21 pushes the latch 8 "SAFE" against the spring force 14 over the inclined surface 18 so that the tooth 17 of the latch 8 "SAFE" releases the sliding intermediate member 7 As the spring head continues to move, the pressure face 20 contacts the adjusting pin 23 of the lock actuator 6 and is moved to the unlocked position together with the sliding intermediate member 7 due to its contact. the side projection 26 with the adjusting pin 23 The unlocking positions 12 return the positioning head 12 to its initial position V, but the lock control element 6 and the sliding intermediate member 7 remain in the leftmost position (FIG. 6). The lock is unlocked and the door can be opened.

-4GB 296205 B6

The device also controls the lock mechanically by rotating the cylinder with a key, which allows the lock to be controlled in the event of a power failure or other fault on the positioning drive 4 or the control unit 2.

When mechanically unlocking the lock from the "locked" position, the cam member 9 is rotated correspondingly by rotation of the key, which after rotation by the angular clearance described above, with which the toothed element 11 is rotatably supported therein, also rotates this toothed element Π. and it over the toothed segment 13 rotates the lock operating element 6 to the "unlocked" position. Nothing prevents this movement, only the sliding intermediate member 7 is carried by the lateral projection 26. The result is the position shown in FIG. 6.

Mechanical locking of the lock from the "unlocked" position is achieved by turning the key in the opposite direction. The lock operating element 6 is thereby moved by engaging the same elements in the "locked" position. There is nothing to prevent this movement since the positioning head 12 is in its initial position V. The resulting position corresponds to the position of FIG. 2 except that the sliding intermediate member 7 remains in its leftmost position.

The mechanical unlocking of the lock from the “locked with SAFE” position (Fig. 3) is performed by turning the key in the cylinder lock again. The cam member 9, when rotated, first strikes its radial protrusion 27 against the actuating arm 19 of the latch 8 "SAFE" and pivots it against the force of its spring 14, thereby releasing the tooth 17 of the sliding intermediate member 7 which slips slightly under the tooth 17 This took place within the angular clearance between the cam member 9 and the toothed element 11. Thereafter, when the key is further rotated, the lock control element 6 is already moved to the " unlocked " The result is the position shown in Fig. 6. The reverse procedure, ie the mechanical positioning of the "locked with SAFE" position from the "unlocked" position, does not allow the device. Only securing without the "SAFE" function is possible as described above.

Industrial applicability

The lock control device according to the invention is intended primarily for vehicle doors. With appropriate adaptation it would also be applicable to other locks, eg in buildings.

Claims (12)

PATENT CLAIMS Device for controlling door locks, in particular vehicle doors, with a positioning drive, a transmission mechanism having a "SAFE" device is arranged between the sliding output element and the lock control element, characterized in that the transmission mechanism has a sliding intermediate member (7) interposed between the sliding output element (5) of the positioning drive (4) and the lock operating element (6) that the "SAFE" device has a latch (8) of the "SAFE" associated with the sliding intermediate member (7) and (4) is provided with a positioning head (12) for the sliding intermediate member (7), for the "SAFE" latch (8) and for the lock operating element (6). Device according to claim 1, characterized in that the transmission mechanism with the "SAFE" device consists only of a sliding intermediate member (7) and a "SAFE" pawl (8). Device according to claim 1, characterized in that the positioning head (12) is provided with a pressing surface (20) for the adjusting pin (23) of the lock operating element (6). -5GB 296205 B6 Device according to claim 1, characterized in that the positioning head (12) is provided with a push-on protrusion (21) for the "SAFE" pawl (8). Device according to claim 1, characterized in that the positioning head (12) is provided with a driving surface (22) for the carrier (25) of the sliding intermediate member (7). Device according to claim 1, characterized in that the lock operating element (6), pivotably mounted between the "unlocked" and "locked" positions, extends with its adjusting pin (23) between the pressing surface (20) of the positioning head (12) and a lateral projection (26) of the sliding intermediate member (7). Device according to claim 1, characterized in that the "SAFE" pawl (8), spring-mounted, is pivotably mounted on the "SAFE" arm (16), which locks the sliding device in the "locked with SAFE" position the intermediate member (7). Device according to claim 7, characterized in that the tooth (17) is associated with a recess in the sliding intermediate member (7). Apparatus according to claim 7, characterized in that the "SAFE" arm (16) is provided with an inclined surface (18) with which the push-on protrusion (21) of the positioning head (12) engages. Device according to claim 1, characterized in that the sliding intermediate member (7) is in contact with the end spring stop in the "secured with SAFE" position. Device according to claim 3, characterized in that the positioning head (12) is in its "unlocked" position in its initial position (V), in which its pushing surface (20) lies outside the movement range of the adjusting pin (23) of the lock control element (6). Device according to claim 1, characterized in that the "SAFE" pawl (8) has an actuating arm (19) to which a radial protrusion (27) of the key pad cam member (8) is associated.