EP2675975A2

EP2675975A2 - Lock for a flap or door

Info

Publication number: EP2675975A2
Application number: EP12717148.6A
Authority: EP
Inventors: Thorsten Bendel; Serkan Gülkan; Karsten Barth; Dusan Petrus
Original assignee: Kiekert AG
Current assignee: Kiekert AG
Priority date: 2011-02-15
Filing date: 2012-01-19
Publication date: 2013-12-25
Anticipated expiration: 2032-01-19
Also published as: JP2014510205A; CN103477008A; DE202011000341U1; JP5991995B2; EP2675975B1; US9611677B2; WO2012110014A3; RU2013140478A; CN103477008B; WO2012110014A2; KR20140048852A; US20140217753A1; KR101956938B1

Abstract

The invention relates to a lock for a flap or a door, with a lock housing, a locking mechanism consisting of a rotary latch (4) and at least one pawl (6), and at least one spring (23) which is capable of pivoting a pivotable component of the lock from a starting position in the direction of an end position by means of spring force, characterized in that the spring (23) is held by a bearing stud (22) which is connected integrally to the lock housing (25) of the lock, and wherein the bearing stud has a stop (24) for the spring, and/or wherein the bearing stud (22) is connected integrally to the stop (24), wherein the stop (24) has the effect that the pivotable component is not spring-loaded in the end position thereof.

Description

Lock for a flap or door

The invention relates to a lock for a flap or a door having the features of the preamble of claim 1. The door or flap may be a door or flap of a motor vehicle or a building.

The aforementioned lock comprises a locking mechanism with a catch and at least one pawl, with which the catch can be rusted in a closed position. The locking mechanism is attached to a usually made of metal lock plate or a usually metal lock case. Usually, such a lock also includes a lock housing, which is usually made of plastic and which is able to shield components of the lock to the outside. In addition, there may be a particular existing plastic lock cover and / or a particular existing plastic cover for a central locking, which also serve the shield.

More particularly, the invention relates to a lock having a pawl for the main catch position of the catch (hereinafter referred to as "main catch pawl"), a pawl for the position of catch advance of the catch (hereinafter called "pre-catch pawl") and a blocking lever for said catch Main ratchet pawl. Such a lock is known from the document DE 102007003948 AI.

The catch of the motor vehicle lock known from DE 10 2007 003 948 AI has a fork-shaped inlet slot into which a locking bolt of a vehicle door or a vehicle door passes when the vehicle door or vehicle door is closed. The locking pin then rotates the catch from an open position to a closed position. If the catch has reached a closed position, so the locking pin can not leave the inlet slot of the catch. In the closed position, the pawl locks the catch, so that it can not be rotated back into the open position. The lock is then in a locked position or position.

The known from DE 102007003948 AI lock comprises two locking positions, which can be taken in succession during the closing of the rotary latch, namely the so-called pre-locking position of the rotary latch and the so-called main detent position of the rotary latch.

In order to avoid that a pawl is not moved unplanned out of its detent position, a blocking lever may be provided which blocks such movement when the catch is locked. Such a blocking lever is required in the lock known from the document DE 10 2007 003 948 AI for the main catch pawl, since the catch and the main catch pawl are constructed so that in the position of main catch, the catch in the main catch pawl an opening Moment can initiate.

The aforementioned features already known from the prior art can be combined individually or in any combination with the subject matter of the present invention. In a lock of the type mentioned so there are components such as pawl, blockage lever or rotary latch, which can and should be pivoted. There is usually at least one preloaded spring with which a desired pivoting movement of such a component is effected by spring force. Such a prestressed spring is capable, for example, of moving a pawl into its locking position, of moving a blocking lever into its blocking position or of turning a catch into its open position. Thus, from DE 10 2007 003 948 AI a spring-loaded rotary latch known. So a catch that can be pivoted by means of spring force of the associated spring.

It is an object of the invention to further develop a lock of the type mentioned.

The object of the invention is achieved by a lock with the features of the first claim. Advantageous embodiments emerge from the subclaims.

To achieve the object, a lock for a door or flap is provided with a catch of rotary latch and at least one pawl and a spring. The spring can pivot a pivotable component of the lock by spring force from a starting position in the direction of an end position. The spring, in particular a leg spring is held by a bearing mandrel, which is integrally connected to a lock housing of the castle. In this embodiment, no separate mandrel has to be riveted with which the spring is held. The bearing mandrel for the spring is in particular simply produced by injection molding together with the lock housing, and in principle made of plastic. In addition, there is a one-piece connected to the lock housing and the bearing pin stop for the spring, which causes the pivotable component is not spring-loaded in its end position. In the end position, therefore, no spring force of the spring acts on the pivotable component. The pivotable component thus falls without the pressure of the spring in the end position. As a result, a significant reduction in noise is achieved in comparison to the case that the pressure of the spring acts on the pivotable component up to the end position. The stop is therefore also produced in particular by injection molding together with the lock housing and in principle made of plastic. The stop causes in the end position and preferably also shortly before no spring force of the spring acts on the pivotable component. It is therefore possible to bias the spring in a freely selectable manner. The bias of the spring can thus be chosen so that the pivotable component is pivoted at a desired speed and / or with a sufficient force. In addition, it can be ensured by the stop that under no circumstances acts a spring force in the end position on the pivotable component. The pivotable component is therefore not spring-loaded in the end position, even if the spring is relatively strongly biased, inter alia, in the starting position.

In one embodiment of the invention, it is a leg spring. The shell housing preferably comprises at least two abutments for the legs of the leg spring. The stops are then also connected in one piece with the lock housing. The production is again carried out in particular by injection molding and that in principle of plastic. One-piece manufacturing reduces the number of parts that need to be manufactured.

In one embodiment of the invention, one of the aforementioned stops is a side wall of the lock housing, which extends in particular parallel to the bearing pin of the spring. Preferably, the side wall comprises a projection, which is in particular triangular in section. The underside of the projection then preferably extends at least substantially perpendicular to the side wall to which the projection is attached. This bottom of the projection thus includes in this embodiment with the side wall at a right angle. In the mounted state of the spring, a limb of the spring adjoins this underside and is thus held in the installed position by the projection when the spring has been installed. The obliquely downwardly extending upper side of the projection relative to the side wall then acts as a ramp to comfortably grip the leg of the spring to bring in the correct installation position by simply pressing down during assembly.

Another stop for a leg of the spring may be integrally connected to the lock housing independently of a side wall. This stop extends in particular parallel to the bearing mandrel of the spring. He preferably has a boom which serves as a guide of the corresponding leg of the leg spring. The leg of the leg spring then adjoins this guide. This leg pivots at the appropriate time in the context of the operation of the lock to bring a spring-loaded rotatable component from a starting position to an end position.

Overall, in this embodiment it is possible to mount the spring before the lock housing is placed together with the spring on a lock plate or inserted into a lock case of the lock. The Schlossplafte or the lock case are basically made of metal. On the lock plate or on the lock case, the locking mechanism is rotatably mounted. A particularly simple assembly is possible in this embodiment.

The spring load of the pivotable component preferably ends shortly before reaching the end position. It is thus ensured in a particularly reliable manner that the pivotable component reaches its end position. This is to be understood that the pivotable component from reaching a no longer spring-loaded position only has to be rotated by a few degrees in order to reach the end position. In particular, the component then only has to travel a short distance without the assistance of the spring force. In one embodiment, the component then has to be rotated by not more than 5 °, preferably by not more than 3 °, particularly preferably not more than 1 °, in order to reach the end position without acting spring force. The pivotable component may be a pawl and / or a blocking lever. The respective component is then spring loaded in the initial position, but not in the end position. In the end position, therefore, the spring force does not affect the pivotable component. If the pivotable component is a pawl, then opening forces that have to be expended in order to move the pawl out of its rest position are reduced. It is thus achieved in this case, in addition to a significant noise reduction, another advantage.

Hereinafter, a preferred embodiment of the invention shown in the figures will be explained in more detail. On the basis of the exemplary embodiment, advantages of further embodiments of the invention are clarified.

Show it:

Fig. 1: locking in the position of the main catch of the catch

Fig.2: Lock in the position of the main catch of the catch

Fig.3: Lock in the open position

Fig.4: Lock in an intermediate position

Fig.5: cutout in the open position

Fig.6: Section in position of the main catch of the catch

FIG. 1 shows a plan view of a wall 1 of a vehicle lock. The wall 1 may be a lock plate or part of a lock case. The wall 1 is preferably made of metal. The wall 1 is provided with an inlet slot 2 into which a locking bolt 3 of a vehicle door or a vehicle door enters when the associated vehicle door or vehicle door is closed. A rotary latch 4 is pivotally mounted on the wall 1 and can be rotated about its mounting axis 5. In the figure 1, the position Main load of Drehfalie shown, in which the locking pin 3 located in the wall inlet slot 2 is enclosed by the inlet slot of the rotary latch so that the locking pin 3 can not be moved out of the wall inlet slot 2 out. The corresponding door or the flap of the vehicle is thus closed by the latching of the pawl in the main catch position of the catch. Shown is the position main rest, because a turning back of the catch according to the arrow direction shown 11 in the open position by the pivotally mounted main locking - pawl 6 is prevented as shown. The main-locking pawl ό is also mounted on the wall 1 and can be rotated about its attachment axis 7. The rotary latch is preferably biased by a spring, not shown in the figure 1 in the open position. Due to this bias the rotary latch presses against a stop of the main catch - pawl with an oblique course. This oblique course presses the main catch - pawl 6 out of the detent position. It is thus introduced such an opening moment in the main catch pawl 6.

If the rotary latch 4 is not biased by a spring, then at least the locking bolt 3 causes a rotary movement of the rotary latch 4 in the direction of the open arrow 11, when an associated vehicle door or vehicle door is opened. The associated torque then pushes the main catch pawl 6 out of the detent position.

However, this is prevented in the position of the main catch of the rotary latch when the vehicle door or vehicle door is closed by a pivotally mounted blocking lever 8 as shown. The blocking lever 8 is also fastened pivotably on the wall 1 and can be rotated about its fastening axis 9. At a lateral contour region of the blocking lever 8 is an arm 10b of a spring 10 at. The spring 10 is biased such that the arm 10b of the spring 10 pushes the blocking lever 8 in the direction of the blockage point shown. presses. The rotational movement of the blocking lever caused thereby is limited, as shown, by a stop 12, which is fastened to the wall 1 in the form of a protruding bolt. In the case of FIG. 1, a pivotable pre-locking pawl 13 is arranged above the main-locking pawl 6, which is shown as transparent in order to allow a view of the underlying components. The pre-locking pawl 13 is also rotatably mounted on the axis 7 and thus can be rotated about this axis 7. The outline of the pre-locking pawl 13 is shown in dotted. The pre-locking pawl 13 comprises a pin 14 which is likewise transparent in the case of FIG. 1 and extends downwardly from the pre-locking pawl 13 in the direction of the wall 1. At this bolt 14, which is attached to the pre-locking pawl, the other arm 10a of the spring 10 abuts. In the position of the main catch of the rotary latch, the bolt 14 also bears against a lateral contour area of the blocking lever 8. If the pre-locking pawl 13 is rotated by operating the lever arm 21 in the direction of the arrow 16, the bolt 14 causes the blocking lever 8 is rotated out of the blocking position. If the blocking lever 8 is moved out of the blocking position, the main locking pawl 6 is pushed out of its shown locking position by the rotary catch 4. Additionally or alternatively detects a lateral contour portion of the pre-locking pawl 13 as a result of said rotational movement a protruding serving as a stop pin 17 which is mounted on the main catch pawl 6. This has the consequence that the main catch pawl 6 is rotated out of the detent position shown and releases the catch. This then pivots in the direction of the arrow 11 in the direction of the open position and finally releases the locking pin 3. The associated door or flap can then be opened.

The pre-locking pawl 13 can also lock the rotary latch 4 when a projecting pin 18 of the rotary 2 on the lateral locking surface 19 of the pre-locking pawl 13 impinges and thus prevents rotation of the pawl in the open position according to arrow 1 1. The pre-locking pawl 13 is preferably biased by a spring, not shown, in the direction of its detent position, that is, as the blocking de lever spring-loaded. A serving as a stopper protruding pin 20 which is mounted on the wall 1, prevents further rotation of the pre-locking pawl beyond its detent position.

The lock according to FIG. 1 comprises a prestressed spring 23 with which the main catch pawl 6 can be moved from its non-latching position, ie from its initial position towards the end position, ie in the direction of its latching position shown in FIG. The main locking pawl 6 is in the stop position shown in Figure 1, but still not spring-loaded in its end position, as this is prevented by the stop 24 for the spring arm 23a of the spring 23. The spring 23, the stop 24 and a stop for the other arm of the spring 23 are preferably mounted on a particular plastic Schiossgehäuse, which is not shown in the figure 1, since this would then hide the view of the components shown.

The invention also includes the case that the pivotable component which is not spring-loaded in its end position, so in the present case, the main catch pawl 6 can be pivoted in addition by other components. In the present case, such supplementary pivoting can be assisted, for example, by a rotational movement of the blocking lever 8 into the blocking position. However, such additional pivoting is not absolutely necessary. The kinetic energy generated by the pivoting by means of spring force is sufficient to move the pivotable component to the end position, although the pivotable component is no longer spring-loaded in its end position. The spring 23 is preferably held by a mandrel 22, the part of a Plastic existing lock housing is, so it has been made in one piece with the lock housing.

In FIG. 2, the lock of FIG. 1 is shown. However, the pre-locking pawl 13 is now not transparent. This therefore partially obscures u. a. the main catch pawl 13 and partially the spring arm 23 a of the spring 23rd

FIG. 3 illustrates the position of the rotary latch 4, the main latch pawl 6, the blocking lever 8, the spring 23, the spring 10 and the latch bolt 3 in the open position. In addition, the position of the pre-locking pawl 13 is sketched by a transparent representation. The locking pin 3 can now be moved out of the inlet slot 2 and the associated door or flap to be opened. The spring arm 23a has now been moved by pivoting the Haupttrast- pawl 6 away from the stop 24 in the direction of the other spring arm 23b. As a result, the bias of the spring 23 has been increased. In this initial position, the spring 23 can now rotate by spring force the main catch - pawl 6 in the detent position. In the open position shown in FIG. 3, therefore, the main catch pawl 6 is spring-loaded by the spring 23.

In the figure 4, an intermediate position between the open position and the main catch position of the rotary latch 4 is shown. If the rotary latch 4 is further rotated by the bolt 3 in the direction of the main catch position, the pre-locking pawl 13, which is shown transparently, can first latch into its locking position. In this intermediate position shown in Figure 4, the main-locking pawl 6 is still spring-loaded by the spring 23. Preferably, the main catch pawl 6 is still spring loaded even when the position is reached Vorrast. If the rotary latch 4 is rotated from the position Vorrast in the position main rest, it is sufficient this spring load to move the main catch - pawl 6 into its locked position into it.

FIG. 5 shows an enlarged view of the lock in the opened position in sections and in contrast to the preceding figures seen from the lock plate or the lock case of the lock. FIG. 5 illustrates that the bearing mandrel 22 is connected in one piece with the lock housing 25. The bearing mandrel 22 includes two protruding tabs 22 a, which prevent the spring 23 from slipping out of the bearing mandrel 22. The protruding tabs 22a are ramped so that the spring 23 can enter into the assembled position shown by fitting and pressing. A side wall of the lock housing 25 has a projection 25a, which contributes to the fact that the spring 23 is held on the spring 23 in the desired position. The corresponding lateral wall also serves as a stop for the spring arm 23b, so that it remains permanently in the position shown. The stop 24 has a boom 24a, which is always above the spring arm 23a from the viewpoint of the lock case or the lock housing. The boom 24a also ensures that the spring arm 23a is held in the desired plane. The prestressed arm 23a of the spring 23 abuts against the main catch pawl 6. The main catch - pawl 6 is therefore spring loaded in this initial position. In the figure 6, the detail of Figure 5 is shown in the position of the main catch of the rotary latch. The spring arm 23a abuts against the stop 24 without touching the main-locking pawl ό. In the position of the main catch of the catch, the main catch pawl 6 is therefore no longer spring loaded.

LIST OF REFERENCE NUMBERS

1: Wall of a lock plate or a lock case 2: inlet slot

3: locking bolt

4: catch

5: attachment axis

6: Main ratchet pawl

7: fixing axis

8: Blockage lever

9: fixing axis

10: spring

10b: spring arm

11: opening direction

12: stop

13: Pre-ratchet pawl

14: bolts

16: direction of rotation

17: bolts

18: bolts

19: Locking surface of the pre-locking pawl 21: Lever arm of the pre-locking pawl

20: bolts

22: thorn

22a: nose

23: preloaded spring

23a: spring arm

23b: spring arm

24: stop

24a: boom

25: lock housing

25a: lead

Claims

claims

Lock for a door or flap with a lock housing, a catch of rotary latch (4) and at least one pawl (6) and at least one spring (23) which is able to pivot a pivotable component of the lock by spring force from a starting position toward an end position characterized in that the spring (23) is held by a bearing mandrel (22) integrally connected to the lock housing (25) of the lock, and wherein the bearing mandrel has a stop (24) for the spring and / or the bearing mandrel (22) integrally connected to the stop (24), wherein the stop (24) causes the pivotable component is not spring-loaded in its end position.

Lock according to claim 1, characterized in that the spring (23) is a leg spring and at least one leg of the leg spring corresponds to the stop, which causes the pivotable component is not spring-loaded in its end position.

Lock according to one of the preceding claims, characterized in that the lock housing (25) consists of plastic.

Lock according to one of the preceding claims, characterized in that the lock housing (25) is located on an existing metal lock plate or in a metal lock case.

Lock according to one of the preceding claims, characterized in that the pivotable component is a pawl (6, 13) and / or a blocking lever (8). Lock according to one of the preceding claims, characterized in that the lock comprises a position pre-rest of the rotary latch and a position of the main catch of the rotary latch, wherein the pivotable component is a main locking - pawl (6).

Lock according to the preceding claim, characterized in that the main catch - pawl (6) in the position pre-rest of the rotary latch (4) is spring-loaded and / or spring-loaded in the open position of the locking mechanism by the spring (23).

Lock according to one of the preceding claims, characterized in that the lock comprises a main locking pawl and a pre - locking pawl. 9. Lock according to one of the preceding claims, characterized in that the rotary latch (4) in the position of the main catch of the catch is able to initiate an opening moment in the pawl (6). 10. Lock according to one of the preceding claims, characterized in that an arm (23a, 23b) of the spring (23) by a cantilever (24a) of a stop (24) for the spring (23) or by a projection (25a) of a Castle housing the castle is held or guided.

11. Lock according to the preceding claim, characterized in that a further stop is a side wall of the lock housing (25) which extends parallel to the bearing pin of the spring (23) and preferably a projection (25 a), in particular a ramp-shaped projection for a Hold a leg of the leg spring (23) comprises.

Lock according to one of the two preceding claims, characterized in that a stop (24) for a leg the leg spring (23) extends parallel to the bearing mandrel (22) and in particular perpendicularly upwards away from a base of the Schiossgehäuses.

Lock according to the preceding claim, characterized in that the stop (24) which extends parallel to the bearing mandrel (22), a boom (24a) for guiding a leg of the leg spring (23).