WO2011110143A2

WO2011110143A2 - Motor vehicle lock having force transmission onto the lock case

Info

Publication number: WO2011110143A2
Application number: PCT/DE2011/000071
Authority: WO
Inventors: Bernhard Kordowski; Volker Westerwick; Holger Schiffer
Original assignee: Kiekert Aktiengesellschaft
Priority date: 2010-03-10
Filing date: 2011-01-26
Publication date: 2011-09-15
Also published as: EP2545234A2; DE102010002736A1; WO2011110143A3; EP2545234B1

Abstract

The invention relates to a lock for a motor vehicle, comprising a locking mechanism, which has a rotary latch, which is rotatably supported on a rotary latch shaft and which can receive a locking bolt, and a pawl. Compared to prior art, the lock comprises additional means in order to transmit forces from a rotary latch into the lock case of the lock via the additional means. Altogether, this measure makes it possible to construct a compact, light lock.

Description

Motor vehicle lock with power transmission to the lock case

The invention relates to a lock for a motor vehicle with the

Features of the preamble of claim 1.

An initially mentioned lock comprises at least one usually made of metal lock plate (also called lock case) with a mounted thereon locking mechanism. The lock plate is usually with an inlet slot for receiving a locking bolt

Mistake. The locking mechanism comprises a rotatably mounted rotary latch for receiving a locking bolt. The locking mechanism further has a pawl with which the catch can be locked.

The catch of a motor vehicle lock usually has a fork-shaped formed by load arm and tentacle

Inlet slot into which the locking bolt of a vehicle door or flap, for example hood or boot lid, comes when the door or flap is closed. The locking pin then rotates the catch from an open position to a closed position. If the catch has reached a corresponding closed position, it is locked in this position via the pawl. The locking bolt can not leave the inlet slot of the rotary latch. This detent position is called main detent position or main detent position.

There are motor vehicle locks with a second locking position, namely the so-called pre-locking position or Vorraststeilung. The

Pre-locking position serves the corresponding door or flap

intercept if it does not reach the main detent position when closing.

In the pre-locking position, the catch is therefore not complete

closed, however, an opening movement of the catch is already prevented by a pawl. That is why the area of Rotary latch, which receives the pawl in this position, referred to as a pre-detent. The pre-restraint thus represents a transition state between the open state and the main rest and is provided for safety reasons,

The document DE 101 30260 AI it can be seen that in a lock for a motor vehicle, inter alia, in crash situations

It must be ensured that a vehicle door is not due to a sudden impact stress caused thereby

opens on schedule. The known from DE 101 30260 AI lock therefore provides a mechanism that in such a

Stress sets a trigger that could otherwise be opened the lock.

If a crash causes a door to open, the locking pin exerts a corresponding pressure on the load arm. Since the load arm is connected to the rotary latch axis, a

transfer appropriate force to the rotary latch axis. In

Depending on the arrangement of the parts of a locking mechanism, the stress can also affect the pawl. In a conventional lock, therefore, the individual parts of a locking mechanism are built so stable that they can cope not only with the daily operation, but also sudden impact stresses.

It is an object of the present invention to provide a lock for a further developed motor vehicle, which has grown reliably to a sudden impact stress,

The subject of claim 1 solves the object of the invention,

Advantageous embodiments emerge from the subclaims. The object is achieved by providing a lock with a lock case and a locking mechanism comprising a

Rotary latch with a load arm and a catch arm, which is rotatably mounted by means of a rotary latch axis. The catch can a

Pick up the locking pin. The locking mechanism has a pawl for rusting the catch. There is also a swivel

Power transmission present, with one through a

Locking bolt on the load arm transmitted force can be routed out of the locking mechanism and transmitted to the lock case, for example. The pivotable power transmission bolt is

especially arranged so that especially the rotary latch axis is relieved. The power transmission bolt is therefore basically on the side of the inlet slot of the lock box on which the rotary latch axis is located.

The power transmission bolt is in the open position of the lock or the locking mechanism in a rest position, rest position means that then the power transmission bolt to conduct any forces out of the locking mechanism and to another component such as the

Can transfer lock case. It is further provided that the power transmission bolt is pivoted in the main latching position of the locking mechanism in such a position that the power transmission bolt

excessive forces can be removed from the ratchet. This position is referred to below as the "power transmission position." The pivoting movements of the power transmission bolt required for this purpose can be realized by means of springs or other mechanical solutions, or they can also be triggered and / or controlled electronically or magnetically.

A power transmission bolt of a motor vehicle lock is already described in the German patent application with the official file number 10 2009029025.7. The disclosure of this application is hereby incorporated by reference for the present invention. All

Features and designs of this German Patent application known lock may in principle also include the claimed with this patent application lock. However, the lock claimed now differs from the lock known from the German patent application with the official file reference 102009029025.7 in relation to the rest position of the lock

Power transmission bolt. In the rest position is the

Power transmission bolt unlike that from the German

Patent application with the official file reference 102009029025.7 known teaching outside the plane in which the catch is rotated, ie above or below the catch, to allow a particularly space-saving design.

The use of the pivotable power transmission bolt to transmit excessive forces, such as may occur in a crash, from the ratchet on, for example, the lock box allows the interpretation of the locking mechanism on the forces occurring in daily use while the presence of emergency reserves for emergency (crash), since the forces are then transferred to the lock case or another external component and not alone on the catch, the rotary latch axis and possibly the pawl. The cost of materials for the lock can be reduced as a whole. An inventive lock can therefore be advantageous overall small and with less

Weight to be built.

The power transmission bolt is preferably pivotably mounted such that the catch is able to pivot the power transmission bolt away from its power transmission position by a rotational movement from a closed position into the open position. Was the power transmission bolt weggeschwenkf in this way, it is then in an embodiment of the power transmission bar above or below the Lastarms of the catch and seen from the base of the lock plate, which basically has the inlet slot for the locking pin. In particular, is located the power transmission bolt then below the catch and thus below the load arm, because then the pivot or rotation axis of the power transmission bolt can be attached to the base of the lock plate and this is no additional component to provide. This represents a particularly simple, more space-saving design.

Already due to a door seal pressure is a relatively large force ready, the catch from a latched position in their

Opening position is able to move. The opening of the ratchet is therefore not difficult for the operator when the catch pivots a power transmission latch during opening.

Is the power transmission latch so pivotally attached to a pivot axis on the lock plate that the catch the

Power transmission bar as described above can swing away from its power transmission position away, then the axis of rotation of the power transmission bar preferably extends at least substantially parallel to the inlet slot of the lock box.

Is the power transmission latch mounted so pivotally that the

Rotary latch the power transmission bolt as described above can swing away from its power transmission position, so there is advantageously a prestressed spring element, the

Power transmission bar is able to pivot back into its power transmission position. The power transmission bar is at this

Embodiment moved by the spring in its power transmission position when the catch is rotated from its open position towards the closed position and therefore releases the power transmission bolt.

In one embodiment of the invention, a substantially metal-made load arm, which may comprise a plastic sheath, has a nose made of plastic which bears against the Power transmission bar abuts and this pivots when the

Rotary latch is rotated from a locked position to the open position. Opening noises are minimized.

In one embodiment of the invention there is at least one

Microswitch which is actuated by the pivoting of the power transmission bolt. The microswitch is used for control purposes, such as turning on interior lighting of the vehicle when the catch is not in the main latching position. The microswitch can also be used to activate a warning signal when the power transmission bar is not in its position

Power transmission position is pivoted, although the catch has reached its main detent position. This embodiment makes it possible to easily display a fault.

Instead of a microswitch and other detector means can be used, which are able to signal a pivoting of the power transmission bar in a selected position. Such

For example, detector means may be a proximity sensor which approximates the power transmission bar or a portion of the power transmission bar

Power transmission bar is able to signalize.

In one embodiment of the invention, the power transmission latch is connected to a lever arm, with which a microswitch or other detection means is actuated or triggered when the

Power transmission bar is pivoted. Preferably, the

Lever arm arranged so that this through an opening of the

Lock plate is pivoted through, when the

Power transmission bar is pivoted to its rest position. A microswitch or other detector means actuated or triggered by the lever arm may then advantageously be arranged on the side of the lock plate opposite the ratchet. The lock plate then separates so the locking of electrical or electronic components that are able to signal the position of the power transmission bolt.

In one embodiment of the invention, the lock comprises a lever capable of acting on the power transmission latch, hereinafter called "control lever." The control lever includes a first lever arm that is operative from a home position

is moved in particular by the locking pin, when the catch is rotated by the locking pin in the direction of the main locking position. The control lever comprises a second lever arm. If the first lever arm together with the catch in the direction

Main switch position moves, then the second lever arm can detect and move the pivotal power transmission latch so that the power transmission bolt in its power transmission position

is pivoted. Alternatively or additionally, the second lever arm reaches a position such that in the main rest position of the

Locking the power transmission bolt is prevented by the second lever arm to pivot back to its rest position. The reliability of the lock is improved.

The control lever, which is able to act on the power transmission bar, comprises means which the control lever in his

Starting position to move when the lock is opened. Such a means may be a spring that the

Power transmission bar moved to its initial position when the locking disengaged or the lock is opened. This means may alternatively or additionally comprise a third lever arm, which is preferably moved by the locking pin when the locking mechanism is released and the locking pin is moved out of the locking mechanism.

The aforementioned embodiments with the control lever, which is able to act on the power transmission, ensure in an improved manner that the power transmission in the Power transmission position is located when the locking mechanism has been locked.

In one embodiment of the invention, the second lever arm is prevented from moving by the power transmission latch if, for example, the power transmission latch can not be pivoted into the power transmission position by a spring or correspondingly acting means due to damage. A door or flap can then no longer be properly closed. A corresponding damage thus remains with this

Embodiment not unnoticed.

In one embodiment of the invention, the catch comprises a main catch and a pre-ratchet. The first lever arm of the control lever is then preferably dimensioned and is thus rotated together with the catch during a closing operation, that a pawl initially can not lock into the pre-catch. It will be at

Closing an otherwise occurring noise from the reasons mentioned in the German patent application with the official file number 102008 046931.9 reasons avoided. The corresponding lever is in this German patent application as

Vorrastuhterdrückungshebel called. We relate the

Revelation content of this German patent application with the official file number 102008046931.9 in the present

Revelation with, The known from this advantageous

Embodiments of the Vorrastunterdrückungshebels can

in principle also embodiments of the claimed now

Be castle. The control lever is thus in one embodiment, at the same time a Vorrastunterdrückungshebel.

Suppresses the first lever arm first, the engagement of a pawl in the pre-catch, the catch can only be latched in the pre-locking position when the catch rotated beyond the pre-rest However, the main † † † tion has not reached and therefore subsequently backwards in the direction of opening position.

In one embodiment of the invention, a pawl of the locking mechanism in the main latching position prevents the control lever from being able to reach its starting position, from which the

Control lever the power transmission in his

Power transmission position is able to move. The control lever can only be pivoted or rotated to its initial position when the pawl is pivoted away, in particular

Pawl that locks the catch in the main latching position, at the same time the pawl, which prevents the control lever, in the

Main rest position to be rotated back or pivoted to its original position.

In one embodiment of the invention, there is a preloaded compression spring which is able to move the control lever in its two end positions. In one end position, the second lever arm of the control lever presses against the power transmission bolt and thus contributes to the fact that the power transmission bolt reliably in his

Power transmission position is held. The other end position is the aforementioned starting position. The control lever is for example in its initial position and this is rotated by means of a locking bolt in the direction of its other end position, the lever reaches a reversal point, from which the biased compression spring the control lever in its other end position

pushes. The control lever is in its other end position and the control lever is rotated, for example by means of a locking bolt in the direction of its initial position, the lever in turn reaches said reversal point, from which the prestressed compression spring then the control lever in his

Starting position pressed in. In this embodiment

ensures that the control lever is always fully moved into its respective end position and does not move out of such an end position unscheduled out. This will be the In addition, if the control lever is also configured as a pre-locking suppression lever, this ensures that the control lever during the

Closing an associated vehicle door or vehicle door can not be unintentionally turned back together with the catch in the direction of opening position when the main detent position is not reached. The possibility of latching in the pre-locking position is thus improved.

In one embodiment of the invention, the rotary latch comprises a stop for the control lever. This stop is arranged in such a way that it can additionally ensure that the

Control lever is moved in the direction of home position when the locking mechanism is unlocked. This embodiment ensures that the control lever can be moved back to its initial position even if the locking mechanism has been latched without a locking bolt being in the inlet slot,

In one embodiment of the invention, the lock is designed so that a pivoting of the power transmission latch in its rest position detects the control lever and moves in the direction of the starting position. This embodiment is compared to the aforementioned

Embodiment alternatively or additionally sure that the

Control lever can be moved back into its initial position even if the locking mechanism has been locked without a locking pin is in the inlet slot.

In one embodiment, there is a stop for the

Control lever. The control lever reaches this stop when it has been fully moved into its home position.

The control lever is advantageously made of plastic to keep the weight of the lock low. The aforementioned control lever, which acts on the power transmission bar, is also advantageous if the power transmission bar while as described can be pivoted back and forth between two positions for the reasons mentioned above, but the

Rest position of the power transmission bolt is not outside the plane within which the catch can be rotated. Of the

Control lever can therefore be the subject of an independent invention, which does not cover all features of claim 1.

The lock case or the lock plate is preferably in two parts

built up. The lock case comprises a metallic plate on which the catch and the pawl are rotatably mounted.

In addition, if the locking mechanism comprises a control lever, it is preferably also rotatably mounted on the metallic plate,

In addition, the lock case is made of plastic to the

Minimize weight of the lock. The plastic part of the lock case is preferably fixedly connected to the metallic plate, for example by means of a screw, rivet and / or adhesive connection. Should it be for stability reasons, for example

be appropriate, the lock case is made entirely of metal.

The metallic plate of the lock case preferably runs

angular around the inlet slot of the lock box. At one end of the angle, the pawl of the locking mechanism is rotatably mounted and at the other end the catch. The metallic part of the

Lock case and thus its weight are minimized.

Advantageously, there is a metallic strip that differs from the

Lock case seen above the catch and the pawl is located. At the two ends of this metallic strip, the axes of the catch and the blocking lever are attached. These Embodiment contributes, on the one hand provide the required stability and yet the weight by a high

Plastic content to keep low.

Since excessive forces are conducted out of the ratchet in the lock according to the invention, all components of the locking mechanism can be made very small, such as the

Diameter of the rotary latch axis, along with the distance between the inlet slot of the rotary latch and rotary latch axis and the width of the load arm of the rotary latch. Thus, a lock case width of a maximum of 7 cm can be realized. Castle box width means the

Extension of the lock case along the inlet slot of the

Lock box. What is to be understood by lock case width, is also further described with reference to the below

Embodiments clear.

The pivotable power transmission bar is in particular on

Lock case attached and / or arranged so that it extends from a side wall of the lock case in the main latching position to the catch. This side wall abuts at a right angle to the lock box entry slot for the locking bolt, The

Power transmission bolt is arranged in particular adjacent to the inlet slot of the lock case, and preferably on the side of the inlet slot on which the rotary latch axis is arranged. In the main locking position, the power transmission bolt then adjoins the rotary latch in such a manner that the rotary latch is pressed against the power transmission bolt in the case of the abrupt stresses described. The power take-off then takes the

appropriate force and forwards them to the lock case and that because of its attachment and / or due to his

Support on a corresponding side lock case wall.

The power transmission bolt may be wholly or partly made of metal and of the same or a different material as the Be made catch. Preferably, however, the Kraftübertragungsgegegei of plastic and in particular, if this is supported on a corresponding lateral lock case wall. Of the

Kraftübertragungsriegei is then on the one hand relatively easy and on the other hand can be constructed stably enough to cope with the described requirements. Alternatively to a lateral

Lock case wall can be the power transmission in the

always mounted on a wall of the vehicle in the built-in state of the castle, in order in the main latching forces from the

Suitable to transfer to other components, so to

Example in a vehicle door or vehicle door into it.

The Kraftübertragungsriegei is preferably disposed within the lock box. It is particularly preferred in spatial proximity to

Rotary catch axis arranged, very particularly preferably in spatial proximity to the load, in particular in spatial proximity to the load and the Drehfailenachse. Such arranged Kraftübertragungsgegei basically requires no additional space.

The power transmission belt preferably touches the catch,

Preferably, the load arm of the rotary latch only when due to strong forces, the catch in the main latching position in the direction

Kraftübertragungsriegei is moved. It is thus the occurrence of frictional forces during normal operation due to a

regular contact between catch and

Kraftübertragungsriegei advantageously avoided. The distance between the power transmission gear and the rotary latch is so small that the rotary latch axle can not be deformed to break before the rotary latch is supported by the power train.

The Kraftübertragungsriegei is preferably cuboid, since the available space can then be used optimally. But there are also other Krafttragungsriegelgeometrien, such as Example rod-shaped or crescent-shaped embodiments used.

Preferably, the power transmission is located in the

Haupttrastposition the catch in spatial proximity to the load, particularly preferably passes the power transmission bar in a

Bulge of the load arm in order to maintain its position particularly reliable when high forces are transmitted from the rotary latch on this.

Either the power transmission bolt can be particularly firmly anchored to a lock case wall on which it is movably mounted, for example by a guide or rivet and / or he can in the main detent position of the catch at high load both the load arm and at least one side lock case wall

touch.

Forces are introduced in one embodiment of the power transmission bar in its axis of rotation. From this axis forces are then introduced into the holding means, which hold the axis rotatable.

According to the invention, the catch completely or partially made of metal. As metal in the context of the invention here preferably steel, hardened steel or a steel alloy is used.

In the context of the present invention, at least the load arm is preferably made of metal or reinforced with metal. As the metal in the invention are preferably steel, hardened steel and steel alloys for use,

The catch can be completely or partially encased in plastic, individual components of the catch, especially in

Crash situations comparatively low loaded tentacle can partially or completely made of plastic, to make the lock easy and inexpensive.

The pawl may be formed of metal or plastic.

Preferably, however, it is made of metal.

Preferably, both the pre-rest and the main rest on the load arm is executed, This allows a construction of the tentacle with low weight and contributes to the weight reduction and compactness of

Overall construction at. Here, the locking positions are preferably formed entirely or partially of metal,

The narrowest point load arm of the catch is preferably wider than the widest point of the tentacle, since especially the load is loaded, the space for a lock can be further reduced,

In one embodiment of the invention, the lock comprises a

Locking bolt, which has a cross section in the form of a flattened circle in the sense of the German patent application with the official

Reference number 102009029034.6, wherein the flattened

Area of the circle in the main latching position on the rotary latch in the direction of rotary latch axis is applied, so as to open a lock particularly easy, We hereby refer to the disclosure of the German patent application with the official file number 102009029034.6 with a. The known therefrom embodiments of a castle, in order to open such with little effort, may also include the presently claimed lock.

The region of the rotary latch which encloses the rotary latch axis is preferably at least partially made of metal for reasons of stability. To reduce weight and to open a lock with little effort, enclosing a metallic portion of the catch the rotary latch axis only partially and that in the German patent application with the official file number 102009 029014.1 known manner. We hereby refer to the

Revelation content of the German patent application with the

official file number 02009029014.1. The result

known configurations of a castle to open such with little effort can also include the presently claimed lock. The metallic region of the rotary latch, which surrounds the rotary latch axis, is thus open towards the inlet slot of the rotary latch.

The blocking sub-ratio of the locking mechanism is preferably in one

Embodiment equal to or greater than 3 in order to open the lock with little effort. Such a large blocking ratio can be particularly easily from the German

Patent applications with the official file 102009029014.1 and 102009029034.6 known embodiments achieve, as already disclosed in these two patent applications.

Through each of these measures in detail and above all in the

Mutual interaction creates particularly favorable

Power distribution ratios in daily operation and in

Crash situations that allow a compact design with low weight and high security.

The lock according to the invention is outstandingly suitable for use in motor vehicles. It is easier and less expensive compared to traditional locks.

Hereinafter, embodiments of the present invention will be described.

Show it:

Fig. 1: lock in Haupttrastposition the Gesperres

Fig.2: Lock according to Figure 1 with additional plate Fig.3: Lock in the main locking position of the locking mechanism

4: Rear side of the lock according to FIG. 3

In the figure 1 is an embodiment of a locking mechanism with a catch comprising a wholly or predominantly made of metal load arm 1 and a wholly or predominantly

Plastic existing tentacle 2 and a pawl 3 shown in the main position. The pawl 3 is replaced by a

biased spring 4 is pressed in the direction of detent position and indeed in the main load lb of the catch inside. The one spring arm 5 is supported for this purpose, as shown on a side lock case wall 6. The other spring arm 7 presses laterally against an upwardly projecting projection 8 of the lever arm 21 of the pawl 3, with which the catch has been locked. The pawl 3 is made with

Exception of a sheath and the projection 8 made of metal. The projection 8 is by means of the sheath on the pawl third

attached. Projection 8 and sheath are made of plastic,

The catch also includes a pre-restraint la. In this the can

Ratchet, for example, the ratchet rust when an associated door or flap was closed with insufficient speed or force, and the catch therefore the

Main rest position has not reached.

A locking bolt, not shown in the figure 1 is prevented by the load arm 2 in the illustrated main detent position, the inlet slot 9 of the lock case, where the catch and the

Pawl 3 are rotatably mounted to leave. In the case of a crash, there may be a case of a force acting on a door or flap. The locking pin can then press accordingly against the load arm 1 of the catch, but not against the tentacle 2 due to such forces. The load arm 1 therefore absorbs such a force. An existing plastic force transmission bolt 10 is positioned so that such excessive force in the Power transmission 10 is initiated. Since the

Power transmission bar 10 is supported against the side lock case wall 6, the force is introduced into the lock case via this power transmission bar 10. The lateral lock case wall 6 is · integrally connected to the wall 11 of the lock case in one piece, on the u. a. as shown, the existing metal axle 12 of the

Pawl 3 is attached.

On the power transmission bolt 10 is an integrally connected thereto axis 13 is arranged. The power transmission bar 10 can be rotated about this axis 13 between two end positions back and forth, In the end position shown in Figure 1, the power transmission bar 10 is in the power transmission position. Turning beyond this end position is by a stop IIa

prevented, in the form of a curvature by the wall 11 of the

Lockbox is provided.

One end of the axle 13 of the transmission rod 10 is looped by a prestressed spring 14. The spring arms of the spring 14 are supported in a manner not shown that the spring 14 the

Power transmission 10 presses in the direction of power transmission position.

From the axis 13 of the transmission rod 10 is an integrally connected thereto lever arm 15 from the side. With the help of this lever one or more micro-switches, not shown, or other detector means can be actuated or triggered, which are able to inform about the position of the lever arm 15 and thus the position of the power transmission rod 10.

The lock shown in Figure 1 comprises a completely made

Plastic existing, rotatably mounted on the lock plate control lever which is able to act on the power transmission bar 10. This control lever initially acts as Vorrastunterdrückungshebel. The associated metal rotary axis 24 is at the same time also the axis of rotation of the rotary latch. The control lever is located above the rotary latch. This

Control lever includes a first lever arm 16, which is moved by the locking pin when the locking mechanism by the

Locking bolt is locked. The control lever comprises a second lever arm 17, the first lever arm 16 through the

Locking pin moves, then the second lever arm 17 can

pivotable power transmission bar 10 so capture and move that the power transmission bar 10 is pivoted into its power transmission position. In the main latching position shown in FIG. 1, the second lever arm 17 blocks the power transmission latch 10, so that the power transmission latch 10 releases from its

Power transmission position can not be pivoted out.

The lock case shown in Figure 1 is only 5.5 cm wide. The distance between the lock case wall 6 and the

opposite lock case wall 25 is therefore only 5.5 cm.

The control lever on the power transmission 10th

can act, comprises a third lever arm 18, by means of which the control lever can be moved in the direction of its initial position. The third lever arm 18 is detected by the locking pin when the locking mechanism is released and the locking pin is moved out of the locking mechanism. The control lever is thereby moved into its starting position.

Is the first lever arm 16 of the control lever or the

Vorrastunterdrückungshebels together with the catch arm 2 of the catch by a locking pin in the closed position

rotated, so there is a support surface 16a of the first lever arm 16 above the pre-restraint la, Due to the projection 8 of the pawl 3, therefore, the pawl 3 is not moved into the pre-restraint la be when the catch together with the

Vorrastunterdruckungshebel moved toward the closed position. Therefore, the lever arm 21 of the pawl 3 then slides silently over the lateral contour area with the pre-restraint la. Everything goes according to plan, then the lever arm 21 of the pawl 3 finally engages in the main load lb. Should the catch, however, the

Do not fully reach main rest position and get back

turn back, then the control lever or the

Vorrastunterdrückungshebel not immediately turn back, since the locking pin is delayed until the third lever arm 18 is detected. Because of this different movement then gives the first

Lever 16 the underlying lateral area of the catch with the pre-restion la free, so that the lever arm 21 of the pawl 3 is now able to engage in the Vorrast-.

The projection 8 of the pawl 3 prevents in the main latching position the control lever to get to its starting position. Should the control lever unintentionally want to rotate to its original position, then the end of the first lever arm 16 abuts against the projection 8, which prevents the continuation of the rotational movement. The control lever can thus be pivoted or rotated only in its initial position when the pawl 3 has been pivoted out of the detent position,

The catch is provided with a protruding from the load arm 2 from above, consisting of plastic stop 19. The stop 19 is placed so that against this stop the first lever arm 16 and the second lever arm 17 can strike, but not the third

Lever 18. The stopper 19 is thus in principle suitable for moving the control lever or to hold it in certain positions. The lock shown in FIG. 1 further comprises a stop 20, made of elastic material such as rubber, for the catch and the control lever, which is fastened to the lock plate. This stop limits the rotational movements of the rotary latch and lever arm. A special feature of this stop 20 is that this is the rotational movements of the catch and / or the

Control lever can limit in both directions. So only one component is needed, which is able to reduce the manufacturing cost. Due to the elastic properties of the stop 20 noise developments are minimized.

The pawl 3 comprises two metal lever arms 21 and 22. The one lever arm 21 is used to lock the catch. The other lever arm 22 is detected and moved when the ratchet is to be unlocked.

The lock shown in Figure 1 also includes a spring 23, which presses the catch in the direction of the open position.

As FIG. 2 makes clear, the lock shown in FIG. 1 also comprises a metal plate 26 (further

Lock plate) extending from the axis 12 of the catch 3 to the

Lock case inlet slot 9 around to the axis 24 of the rotary latch or the control lever, which is also a Vorrastunterdrückungshebel extends. The plate 26 is viewed from the lock plate wall 11 from above the Vorrastunterdrückungshebels and above the pawl 3. The two axes 12 and 24 open into the plate 26, which thereby contributes to the stability of the locking without having to operate excessive material costs.

FIG. 3 shows a modified embodiment of the invention. The lock case consists of a metallic plate 27, which matches the structure of the metallic plate 26 according to FIG. The metallic plate 27 is provided with a plastic made by Injection molded housing 28 firmly connected. In the figure 3, components that match the components of Figure 1 beyond, provided with the same reference numerals. The lock shown in Figure 3 differs from the lock shown in Figures 1 and 2 by a different geometric arrangement. According to the figure 3, the axis 13 is rotatably supported by the injection molded part 28. If the power transmission bolt 10 is pivoted away from its power transmission position by the catch, the power transmission bolt 10, unlike the embodiment according to FIGS. 1 and 2, passes under the catch. The lever arm 15, which projects from the axis 13, is then pivoted through a recess of the injection molded part and thus reaches the back of the

Injection molded part 28. On this rear side, one or more detector means are then arranged to detect the position of the lever arm 15,

The control lever is in turn at the same time

Vorrastunterdrückungshebel in the sense of the German patent application 102008046931.9. He in turn has a total of three lever arms, which act in the same manner as described in the case of Figures 1 and 2 and are designed. In contrast to the embodiment according to Figures 1 and 2, the control lever between the lock case 27, 28 and the rotary latch is placed, The rotary latch in turn comprises a stop in accordance with the stop 19 according to Figures 1 and 2, but now down in Direction lock box wall 27 protrudes.

The lock shown in FIG. 3 may now comprise, instead of a plate 24, a metallic, rectilinear strip which extends directly from the axis 12 to the axis 24. The two axes 12 and 24 extend in an analogous manner through the strip, which mechanically stabilizes the locking without overloading the lock by its weight. The width of the injection molded part is again only 5.5 cm. The metallic plate 27 protrudes on one side as shown by about 0.5 to 1 cm.

In FIG. 4, the lock according to FIG. 3 is shown from the rear side. It is shown that the lever 15 can be pivoted through a recess of the injection molded part 28.

To unlock the lock, there is on the back of the

Injection molded part means 29 and 30 to pivot the lever arm 22 of the pawl with the aid of a Bowden cable suitable, the injection molded part 28 comprises for this purpose a further recess to a

Rotary movement of the lever 30 about the axis 12 around, for example, by means of a driver, not shown, to be transmitted to the lever arm 22 of the pawl. The locking mechanism can, as shown in FIG. 4, still be encompassed by a box, for example made of metal, and thus stabilized, if this is for reasons of stability

is desired.

Reference number list

1 load arm

1 a pre-rest

1 b main branch

2 catching arm

3 pawl

4 spring

5 spring arm

6 side lock case wall

7 spring arm

8 lead

inlet slot Power transmission bars

wall

a stop

axis

feather

lever arm

a lateral contour area

lever arm

attack

lever arm

feather

axis of rotation

wall

plate

casing

Eyelet for bowden cable lever with recess for attaching a Bowden cable

Claims

claims

1. lock with lock case and with a locking mechanism comprising an at least partially made of metal rotary latch with a load arm (1) and a tentacle (2) which on a

Rotary shaft axis (24) is rotatably mounted and the one

Lock pin can accommodate, and a pawl (3), characterized in that the lock has a pivoting

Power transmission bar (10), with which a by a locking bolt on the load arm (1) transmitted force can be routed out of the ratchet, wherein the

Power transmission bar (10) is in its rest position outside the plane of rotation of the rotary latch.

2. Lock according to claim 1, characterized in that the power transmission bolt (10) through the catch of a

End position in another end position and indeed in the

Rest position can be swiveled.

3. Lock according to the preceding claim, characterized

characterized in that a prestressed spring is provided, which is able to pivot the power transmission bolt (10) from its rest position into the other end position into which the power transmission bolt (10) is able to direct forces from the load arm (1) out of the locking mechanism.

4. Lock according to one of the preceding claims, characterized in that it comprises a detector means capable of detecting the position of the power transmission bar.

5. Lock according to the preceding claim, characterized

characterized in that the detector means of the

Power transmission bolt (10) through a lock case wall is disconnected.

6. Lock according to one of the preceding claims, characterized in that a control lever is provided, which is able to move and / or hold the power transmission bolt (10).

7. Lock according to the preceding claim, wherein the

A catch has a pre-restraint (la) and a main catch (lb) and the control lever is designed as Vorrastunterdrückungshebel.

8. Lock according to one of the preceding claims, characterized in that a preliminary catch (la) and / or main catch (lb) are formed on the load arm (1) of the rotary latch.

9. Lock according to one of the preceding claims, characterized in that in the main locking position of the rotary latch (1) of the power transmission bolt (10) adjacent to the load arm (2).

10. Lock according to one of the preceding claims, characterized in that in the main rest position of

Power transmission bar (10) touches the load arm (2) only when loaded.