WO2015000468A1

WO2015000468A1 - Motor vehicle lock with a position securing system

Info

Publication number: WO2015000468A1
Application number: PCT/DE2014/100227
Authority: WO
Inventors: Ömer INAN
Original assignee: Kiekert Ag
Priority date: 2013-07-05
Filing date: 2014-07-03
Publication date: 2015-01-08
Also published as: EP3017129A1; DE102013213189A1; EP3017129B1

Abstract

The invention relates to a door lock or flap lock comprising a locking mechanism that has a rotary latch and a pawl for locking the rotary latch. The aim of the invention is to provide a lock with an improved position securing system for a moveably mounted actuation element of the lock. The aim is achieved in that the position securing system comprises a moveably mounted counterweight which can be moved in the same direction as the actuation element. The counter weight and the actuation element are connected together such that a movement of the counterweight activates a counter movement of the actuation element.

Description

Motor vehicle lock with position security

The invention relates to a lock for a door or flap with a locking mechanism comprising a catch and a pawl for rusting the catch. Such a lock is known from DE 1 03 20 457 A I.

An aforementioned lock is used for temporary closing of openings in motor vehicles or buildings by means of doors or flaps. In the closed state of such a lock, the catch engages around a particular bolt-shaped locking bolt, which is usually attached to the body in the case of a motor vehicle. Reached the catch by a caused by means of the locking pin pivoting starting from an open position a closing Stel development, the catch is finally locked by means of the pawl. A blocking surface of the pawl then rests against a blocking surface of the D, thereby preventing the catch in the open position can be rotated back. The locking pin can not leave the locking mechanism in the closed position.

For opening, it is necessary to move the pawl out of its detent position. If the pawl has been moved out of its detent position, the rotary latch rotates in the direction of the open position. In the open position of the catch and thus in the open position of the locking mechanism, the locking bolt can leave the lock. The door or flap can be opened again.

For turning the catch in the direction of open position following a move out of the pawl from her Catching pressure may be due to a sealing pressure of the corresponding door or flap or a preloaded spring. A train movement of the locking pin out of the locking mechanism can cause such a rotation.

There are locks with two different detent positions in the swivel cases. The Drehfa cases can then be locked first in the so-called pre-nested position and finally by further rotation in the closing direction in the so-called main detent position. Although a locking bolt can not leave the locking mechanism in the pre-locking position. However, an appropriate door or door is not yet completely closed. Such a door or door is completely closed only when the rotary latch is turned up to the latching position and locked in place.

The lock may include a blocking lever capable of blocking a pawl when the pawl locks the rotary latch. In order to open such a locking mechanism, the blocking lever must first be moved out of its blocking position.

In order to be able to open a lock particularly easily, the catch can, in the latched state, introduce an opening moment into the pawl. The opening moment can cause the Sperrklin ke is moved out of its rest position. In such a lock, unwanted movement is prevented by a blocking lever. If the blocking lever is moved out of its blocking position, the lock opens automatically. Such a prior art is known from the publication DE 1 0 2007 003 948 AI. To open a lock, there is a Betätigungsseinrichtu ng. When the operating device is actuated, the locking mechanism is opened. A handle of a door or flap may be part of the actuator. This handle is usually connected via a linkage or a Bowden cable with an actuating lever of the castle. If the handle is actuated, the actuating lever of the lock is pivoted by means of the linkage or Bowden cable so that the lock opens.

Locks of motor vehicles are regularly equipped with a central lock (see, for example, DE 41 08561 A I) and / or an anti-theft device (see, for example, DE 1 0201 1 01 851 2 A I). For locking a side door lock and / or egg nem inserting an anti-theft device corresponding mechanisms are provided which produce a rotational or linear movement and thus lock the lock or unlock or insert the anti-theft device or unlock. In the event of an accident U should be avoided for safety reasons an adjustment of the locking or anti-theft device, so for example the adjustment of a locked position in an unlocked Positio n or in the case of an anti-theft adjustment from an inserted position to an unlocked position. It should also be avoided that an actuating device is actuated so that a door or flap can open.

In order to protect a lock or an anti-theft device, to change their position in the event of an accident or in the event of a crash, it can be provided that a leg of a spring against a spring force of the spring must be moved to the Position of a lock or an anti-theft device to change. The greater the force that is then spent on such a movement of a spring leg, the greater must be the acceleration in the event of a crash in order to be able to change the position of an anti-theft device or a lock. Depending on the spring force, it can be achieved that accelerations of, for example, up to 30 g or up to 55 g can not change the position of an anti-theft device or a central locking system. With g is the earth acceleration. The spring leg is the position assurance for Sicheru ng the position of a lock or the position of an anti-theft device in the case of high accelerations, as these can occur in the event of a crash. The position of a lock or an anti-theft device is regularly changed as needed by means of a motor. The presence of a position assurance requires ei ne corresponding engine power to overcome the position assurance ü, so in the example mentioned the spring leg to move.

The document DE 1 96 24 640 C l discloses a motor vehicle door lock, which should not open automatically in a vehicle accident. The motor vehicle door lock comprises a B etätigu ngseinrichtung with an outside door handle. When an external door handle is actuated, an associated door or door can be opened. An undesirable opening of the door or flap should be avoided in a crash by a locking lever which is pivoted in the case of high accelerations such that it blocks an actuating lever of the actuator of the sc hlosses. The operating lever, so to example m Outside door handle, then can not be pivoted or operated for opening the lock.

The vorgena nnten features may be individually or in any combination of the lock according to the invention.

It is an object of the present invention to provide a further developed lock with a position assurance for an actuating element.

To solve the problem, a lock with a locking u comprehensive a catch and a pawl for locking the catch and a position assurance bereitg estellt. The position assurance is able to secure the position of a movably mounted actuating element. The position assurance includes a counterweight. The counterweight is so movably mounted that it can be moved in the same direction as the movably mounted actuator. The counterweight and the actuating element are connected to one another such that a movement of the counterweight results in an opposite movement of the actuating element.

Acts due to a crash an accelerating force at the same time as well as in the same direction on both the actuator and on the counterweight, so movement of the actuator due to the associated counterweight is avoided. It is thus secured the position of the actuating element in a crash. Egg rope with U mlenkrolle can serve in one embodiment as a connection between the counterweight and Betätigu ngselement. The position assurance preferably comprises as connection a pivotally mounted lever. Two arms of the lever rest on the mobile storage. The one arm of the lever is pivotally connected to the movably mounted actuating element. The other arm of the lever has the counterweight, that is, a relatively large mass, which is greater by a multiple than the weight or the mass of the arm, which is pivotally connected to the movably mounted Betätigungselemeni. The other arm can be dimensioned massively such that it forms the counterweight. The other arm may be connected to a movably mounted counterweight, such as a rod or rope. In contrast to the prior art, undesired or unscheduled movement of the actuating element as a result of high accelerations is not avoided by virtue of the fact that a lever is moved into a blocking position due to the high accelerations. Instead, the force acting on the counterweight due to a high acceleration in a crash, initiated directly through the lever and the articulated connection in the actuator. The force thus introduced then acts in opposition to the force introduced into the actuator due to the crash. It is achieved as a position assurance of the actuator in a crash, or at least supported. This effect is achieved in a technically particularly simple and permanently reliable manner. In particular, the presence of further components, such as a spring, is not required in order, on the one hand, to secure a position in the event of a crash, and, on the other hand, to nevertheless permit actuation. If the actuator is moved at a low speed and only slightly accelerated, it is advantageous to use a small force to perform this movement. If the movement is carried out by a drive, it is sufficient advantageously a drive with low power, which then advantageously small and can be easily built. In general, the drive is an electric motor.

In one embodiment, the arm which forms the counterweight or which is connected to the counterweight is perpendicular or at least substantially perpendicular to the direction of movement of the actuating element. This contributes to the optimization of leverage to provide a position assurance with a small space.

The arm which forms the counterweight or which is connected to the counterweight is preferably longer than the arm which is pivotally connected to the actuating element. This contributes to the optimization of leverage to provide a position assurance with a small space.

The arm hinged to the actuator preferably includes an angle with the direction of movement of the actuator that is less than the angle that the other arm encloses with the direction of movement of the actuator. This helps to optimize balance conditions in order to provide position assurance with a small installation space.

The arm, which is pivotally connected to the actuating element, preferably closes with the direction of movement of the actuating element an angle less than 70 °, preferably less than 50 °, a. This helps to optimize leverage to provide position assurance with minimal space. In a preferred embodiment, the arm of the lever, which forms the counterweight, viewed from the rotatable mounting extends laterally and preferably on both sides and in particular part-circular, sickle-like or diamond-like. This advantageously ensures that this arm has a large mass and the space to be provided for this is small and compact. This also applies to the space that is kept ready to allow movement of the arm with the counterweight. In a preferred embodiment, the articulated connection comprises a round end piece which laterally adjoins walls for forming the articulated connection. These adjacent walls are preferably parallel to each other and straight. This makes it possible to connect the rotatably mounted lever suitably articulated with an actuating element which is moved linearly for actuation. The round end piece is preferably the end of the lever arm. The walls are then firmly connected to the actuator and that preferably made of production green one-piece.

In one embodiment, the actuating element is part of a central locking or an anti-theft device. This embodiment advantageously prevents the central locking system from being unlatched in the event of a crash or the anti-theft device being unlocked unscheduled. In particular, it is avoided in a crash that a central locking locked unplanned or an anti-theft device unplanned is activated in order to avoid that occupants can be recovered in a crash only more difficult.

In another embodiment, the actuating element is part of an actuating device with which an associated door or flap can be opened. The position assurance then prevents the door or flap from opening in the event of a crash. In a preferred embodiment, the position assurance comprises one or more latching elements in order to additionally secure rest positions of the actuating element and / or counterweight.

In one embodiment, the position assurance additionally comprises a spring with which the position of the actuating element is additionally secured. The spring, in particular a leg of the spring is moved against a spring force to move the actuator can. In particular, a bolt is moved relative to the spring in order to perform a movement of the actuating element can. The relative movement of the bolt causes a deformation of the spring against its spring force. This contributes to the fact that the position of the actuating element or the bolt is maintained even in a crash. Compared to the prior art, as described in German Patent Application 1 0 201 3 21 2 896, advantageously a weaker-sized spring can be used with a particularly small spring constant in order to secure the position in the desired manner. A weakly dimensioned spring advantageously contributes to the fact that only small driving forces are required to move the actuator for a desired actuation. Thus, in this embodiment, the position assurance includes two mechanisms to secure the position of an actuator. The two Mechanisms work independently of each other. Their effects, however, complement each other. Overall, a very reliable position assurance can be provided, which is able to protect against unscheduled actuation in the event of a crash. However, no excessive force must be applied to a desired operation.

The spring of the position assurance is preferably, as described in German Patent Application 10 2013 212 896, designed as a double-sided forceps spring to further reduce the force that must be used for a desired movement of the actuating element.

Preferably, a stop, as described in German Patent Application 10 2013 212 896, provided for the spring leg of the spring or pliers spring, which limits the movement of the spring legs. This helps to be able to use a relatively weakly dimensioned spring, so a spring with a small spring constant, and still allow a position assurance that has grown even high accelerations of, for example, up to 30g or up to 55g. In particular, with the present invention it is also possible to provide positional securing that has grown to accelerations of up to 80g without having to provide an excessively high power drive for a desired movement of the actuator.

In one embodiment, the actuating element is mounted linearly movable. Advantageously sufficient in this embodiment, a particularly small space.

Show it Figure 1: Position securing with spring;

Figure 2: Examples of bolts for a position assurance with spring;

Figure 3: Position assurance with lever;

Figure 4: Position assurance with lever and separate counterweight

Figure 5 position assurance with cable connection.

FIG. 1 shows two double-acting pliers springs, each having two undulating spring legs 1. The waveform of the legs 1 creates two positions for a bolt. The legs 1 of each spring umkla mmern or u mgeben a bolt, such as cylindrical pin, in its respective rest position 2 and 3. The bolt between a position or position 2 and a position or position 3 back and forth linearly relative to the spring be moved. To move from a position 2 to a position 3 or vice versa, the legs 1 of each in the present case one-piece pliers spring must be pressed apart in a central region between the two positions 2 and 3 and against a spring tension. A rest position 2, 3 of each bolt is secured by the two legs 1 of a spring.

The movement of the legs 1 is limited to the outside by walls 4, which serve as a stop. These limit the movement of the leg 1, which is effected by adjusting the position of a bolt from 2 to 3 or vice versa. It is thus achieved that a bolt is secured against adjustment at high accelerations without having to use excessively large springs, ie springs with large spring constants. In each case two walls 4 run parallel to one another and parallel to the longitudinal extension of the associated spring with the legs 1. Two Walls 5 serve to hold or fix free ends of the legs 1. A wall portion 6 between the two legs 1 of a spring in the region of the free ends also serves to hold or fix the free ends of the legs 1. In particular, the free Ends of the legs 1 by the walls 5 and 6 positively and / or non-positively held or fixed.

The other end 7 of each preferably one-piece spring, which faces the free ends of the legs 1, extends in a circle around a pin 8 of the housing 9 around. A laterally projecting from the bolt 8 web 10 helps to hold the end 7 of each spring positively. The end 7 is also surrounded by a wall 11, which also contributes to a positive retention of the end 7 of each spring. The end 7 is also fixed.

When a lock is unlocked by an operating lever, a bolt is moved from a position 2 to a position 3, for example. The spring with the legs 1 now prevents such a movement and an associated unlocking alone due to high accelerations, as they can occur in the event of a crash, can take place.

FIG. 1 shows an upper position assurance and a lower position assurance. Both are mechanical

Position assurance identical with the exception of the bolt.

The bolt of the upper position assurance has a smaller one

Diameter as the bolt of the lower position assurance.

Due to the smaller diameter, the upper position assurance can withstand lower acceleration forces compared to the lower position assurance. The bolts shown in FIG. 1 have a circular diameter. These are cylindrical pins. Instead of a circular diameter, the diameter of a bolt may be, for example, triangular, semicircular or oval.

FIG. 2 shows other embodiments of cross sections of bolts 9, which can alternatively be used in a position assurance according to FIG. Shown are a triangular cross section, an oval cross section and a flattened circular shape. Depending on the shape, the dimensioning and the installation direction desired acceleration forces can be set at a position assurance, which should be able to cope with a position assurance. In Figure 3, another mechanism for position assurance is shown, which is advantageously used in addition to a position assurance with spring or with another locking means.

The position assurance shown in Figure 3 comprises a pivotally mounted lever 12 which can be pivoted about an axis 13 around. Two arms 14 and 15 of the lever 12 are from the movable storage, ie the axis 13, from and in fact substantially opposite. The angle which the two arms 14 and 15 enclose is advantageously between 180 degrees and 130 degrees. The one arm 15 of the lever 12 is pivotally connected to a displaceably mounted actuating element 16. The actuating element 16 comprises a slot 17 into which a bolt 18 extends for the purpose of displaceable mounting. The position of the bolt 18 relative to the position of the slot 17 can be additionally secured by means of a spring or other locking means. The other arm 14 of the lever has a large mass, which is many times greater than the mass of the arm 15th is, which is pivotally connected to the slidably mounted actuating element 16. The large mass serves as a counterweight.

In the case of high acceleration caused by a crash, acceleration forces act on both the actuator 16 and the large mass arm 14 in the same direction. Due to the articulated connection is effected in the ideal case with suitably dimensioned arm 14 that the acceleration forces do not result in that the actuating element 16 is moved. It is achieved as a position assurance of the actuator in a crash or at least supported with less suitable dimensioning. The arm 14 of the lever 12, which has the particularly large mass and thus a particularly high weight, extends laterally from both sides viewed from the rotatable mounting or axle 13 and has approximately the shape of a semicircle. This arm 14 has such a large mass, without a large. Having to provide space, which also allows pivoting movements of the arm 14. Preferably, as shown, the lateral extent of the arm 14 radially exceeds the extent of the arm, more preferably as shown by at least a factor of 2. Also, the radial extent of the arm 14 which constitutes the counterweight advantageously exceeds that seen from the axis 13 the radial extent of the arm 19, and preferably by a factor of 2 and more, to provide particularly suitable leverage ratios, which allow a small space and a low weight.

Preferably, the arm 14, which forms the counterweight, in a starting position of the actuating element 16 is perpendicular or at least substantially perpendicularly from the direction of movement of the actuating element 16 in order to further optimize lever ratios for achieving the object and, in particular, to allow a small installation space.

Preferably, the extension of the arm 15 with the direction of movement of the actuating element 16 includes an angle of less than 70 ° in order to further improve the object of the invention and to allow a small installation space.

The articulated connection comprises a round end piece 19 of the arm 15, which laterally adjoins walls 20 for forming the articulated connection. These adjacent walls 20 are part of the actuator 16 and parallel to each other and straight. This makes it possible to connect the rotatably mounted lever 12 suitably articulated to the actuating element 16. It is thus possible that the actuating element 16 moves linearly and the lever 12 can be pivoted about its axis 13.

FIG. 4 shows a further embodiment of a position assurance. In contrast to the position assurance according to FIG. 3, the arm 14 does not form the counterweight. Instead, the arm 14 is connected to a counterweight 21 via a rod 22. Both the counterweight 21 and the actuator 16 are linearly displaceable, as the respective double arrow illustrates. The ends of the rod 22 are pivotally connected to the end of the arm 14 remote from the axle 13 and to the counterweight 21, respectively.

FIG. 5 illustrates a connection between actuating element 16 and counterweight 21 by a cable 23, which is deflected by a preferably rotatably mounted roller 24. Again, actuator 16 and counterweight 21 can be moved linearly according to the illustrated double arrows. One or more springs and / or locking elements can additionally contribute to the position assurance, to keep actuator 16 and / or the counterweight 21 in desired rest positions.

LIST OF REFERENCE NUMBERS

1 leg of a forceps spring

2 rest position for a bolt

3 rest position for a bolt

4 wall

5 wall

6 wall

7 spring end

8 housing bolts

9 bolt cross sections for position assurance

10 footbridge

11 wall

12 levers

13 axis

14 long lever arm for counterweight

15 short lever arm

16 actuator

17 slot of the actuator

18 bolts

19 rounded lever arm end

20 wall

21 counterweight

22 pole rope

idler pulley

Claims

Patent claims

Lock with a lock comprising a rotary latch and a pawl for rusting of the rotary latch and a position securing for an actuating element (16), characterized in that the position securing comprises a counterweight (14, 21) which is movably mounted in such a way that it can be inserted into the can be moved in the same direction as the movably mounted actuating element (16) and the counterweight and the actuating element are connected to one another in such a way that a movement of the counterweight (14, 21) results in an opposite movement of the actuating element (16).

Lock according to claim 1, characterized in that the position securing comprises a pivotably mounted lever (12) and one arm (13) of the lever (12) is connected in an articulated manner to the movably mounted actuating element (16).

Lock according to the preceding claim, characterized in that the other arm (14) of the lever has a counterweight which is many times greater than the weight of the arm (15) which is articulated to the movably mounted actuating element (16), or that the other arm (14) is connected to a counterweight (21).

Lock according to one of the two preceding claims, characterized in that the arm (14) which forms the counterweight or which is connected to the counterweight (21) is vertical or at least substantially protrudes perpendicularly from the direction of movement of the actuating element (16).

Lock according to one of the three preceding claims, characterized in that the arm (14) which forms the counterweight or which is connected to the counterweight (21) is longer than the arm (15) which is articulated with the actuating element (16). connected is.

Lock according to one of the four preceding claims, characterized in that the arm (15), which is articulated to the actuating element (16), forms an angle with the direction of movement of the actuating element (16) which is smaller than the angle that the other arm (14) includes the direction of movement of the actuating element (16).

Lock according to the preceding claim, characterized in that the arm (15), which is articulated to the actuating element (16), encloses an angle of less than 70°, preferably less than 50°, with the direction of movement of the actuation element (16).

Lock according to one of the preceding claims 2 to 7, characterized in that the lever arm (14) with the counterweight extends laterally as seen from the rotatable bearing (13), preferably to both sides, in particular in the shape of a part circle, sickle-like or diamond-like.

Lock according to the preceding claim, characterized in that from the rotatable bearing (13). seen, the lateral extent of the lever arm (14) is greater than the radial extent of the lever arm (14).

10. Lock according to one of the preceding claims 2 to 9, characterized in that the articulated connection comprises a round end piece (19) which laterally adjoins one or more walls (29).

11. Lock according to the preceding claim, characterized in that the walls (20) run parallel to one another.

12. Lock according to one of the preceding claims, characterized in that the actuating element (16) is part of a central locking system or an anti-theft device.

13. Lock according to one of the preceding claims, characterized in that the position securing one or more locking elements for securing positions of the actuating element (16) and / or the counterweight (14,

21) includes.

14. Lock according to one of the preceding claims, characterized in that the position securing maintains the position of the actuating element (16) in the event of a crash

able to ensure accelerations of at least 80g.