EP2251509A9 - Lock for a wing of a motor vehicle with a dampening device - Google Patents

Abstract

The invention relates to a lock (1) for firing a flap and, in particular, a tailgate of a motor vehicle, having a lock housing (10) in which a lock catch (11) is movably received, in order to move a closing element (12) in a closed position of the lock catch (11 ) and to release in a release position of the lock latch (11), wherein a damping device is provided, through which the closing element (12) in the closed position in the lock housing (10) can be accommodated damped.

Essential to the invention it is provided that the damping device comprises at least one spring element (13a, 13b, 13c, 13d) accommodated in the lock housing (10), which biases the closing element (12) in the closed position against the latch (11), whereby a rattling noise of the closing element (12) in the closed position of the lock (1) is prevented.

Description

The present invention is directed to a lock for closing a flap and in particular a tailgate of a motor vehicle according to the preamble of claim 1, with a lock housing in which a latch is movably received to secure a closing element in a closed position of the lock latch and in a Release release position of the latch, wherein a damping device is provided, through which the closing element is absorbed damped in the closed position in the lock housing.

From the DE 25 48 108 A1 is a lock for closing a flap and in particular the tailgate of a motor vehicle known. In the lock housing a latch latch is movably received to secure the closing element referred to here as a locking pin in the closed position of the latch within an insertion opening. Closes the latch, the closing element is drawn into the insertion opening and pressed against a rear elastic element, which is referred to as a stop buffer. This bump stopper is formed of a rubber material or a plastic material having a high elasticity. In the closed position of the latch, the closing element is subjected to force by the stop buffer and pressed against the contact surface of the latch. As a result, a rattling noise of the closing element is prevented in the closed position of the castle.

The use of an elastic element as a stop buffer has the disadvantage that over a longer period of use of the castle, the elasticity of the elastic stop buffer decreases. In particular, when the closing element remains permanently through the latch in the closed position, the elastic element is also permanently subjected to force. Over the longer period of use, the rubber or plastic material ages, and the damping effect of the damping device formed by the stop buffer decreases, which can cause rattling noises in the lock.

It is therefore the object of the present invention to provide a lock for closing a flap and in particular a tailgate of a motor vehicle with a damping device, wherein the damping device allows over the period of use of the motor vehicle improved damping effect.

This object is achieved on the basis of a lock for closing a flap of a motor vehicle with a damping device according to the preamble of claim 1 in conjunction with the characterizing features. Advantageous developments of the invention are specified in the dependent claims.

The invention includes the technical teaching that the damping device comprises at least one spring element accommodated in the lock housing, which biases the closing element in the closed position against the lock latch, whereby a rattling noise of the closing element in the closed position of the lock is prevented.

The essence of the invention is to use a spring element which is designed as a metallic spring element and has no significant aging over the service life of the castle. In particular, the advantage of preventing rattling noises of the closing element in the closed position of the lock is achieved in that the spring element forces the closing element against the lock catch in order to create a spring clamping of the closing element. If the closing element is outside the lock, then the spring element assumes a force-relaxed position. If the closing element is inserted into the lock, the spring element is transferred from the force-tensioned to the force-tensioned position. The prestressing of the spring element achieved thereby relates exclusively to the elastic region of the spring element which is not subject to any appreciable aging and consequently no lowering of the spring preload of the closing element in the lock.

Preferably, the lock housing has a receiving recess into which the closing element can be inserted from an insertion direction in order to reach the closed position. Often, the closing element is designed as a striker and placed in the door side panel of the motor vehicle or in the tailgate of the motor vehicle. The lock is thus located on the arrangement of the striker corresponding, opposite side in the door or in the bottom region of the trunk, so that when closing the flap of the motor vehicle, the closing element is inserted into the receiving recess of the lock housing. An advantageous arrangement of the spring element results from the fact that the spring force caused by the spring element or the resulting acting on the closing element forces, also effected by the spring element, against the insertion of the closing element acts in the receiving recess on the closing element. When closing the flap of the motor vehicle, therefore, the biasing force of the spring element must be applied in the closing movement of the flap. This advantageously results in a damping effect of the movement of the flap of the motor vehicle shortly before the closed position of the flap on the motor vehicle.

Furthermore, locks for closing a flap of a motor vehicle are known which have an electromotively operable lock latch. If the latch is electromotive transferred from the release position to the closed position, both the flap is pressed into a frequently existing between the flap and the frame of the motor vehicle sealing unit, as well as the spring element biased by the insertion of the closing element in the receiving recess. Consequently, the bias of the spring element is generated by an electric motor, and it is not necessary for the operator of the motor vehicle to operate the flap of the motor vehicle to overcome the spring bias of the spring element particularly strong.

According to an advantageous embodiment of the lock, the spring element is designed as a leg spring, wherein tong-like at least relatively movable jaw elements are movably received in the lock housing, which are biased by the spring element in a jaw closing position. The jaw elements are arranged in the jaw closing position such that the jaw elements protrude at least partially into the receiving recess in the lock housing. It is thereby achieved that upon insertion of the closing element into the receiving recess, springback of the jaw elements takes place against the spring pretension of the leg spring. As a result, the closing element is subjected to force via two contacts by only one leg spring, the resultant of the forces acting on the closing element counteracting the direction of insertion of the closing element into the receiving recess.

The jaw members may be pivotally received in a pivot axis in the lock housing so that the jaw members are movable toward and away from each other by rotation about the pivot axis. The leg spring is arranged in such a way, are biased in the jaw members by the bias of the leg spring in the direction that the jaw elements are moved toward each other by the bias. The leg spring may include a turn portion extending about the pivot axis. The turn portion may consist of one or more turns of the leg spring, wherein the spring wire of the leg spring merges into respective leg portions, wherein the jaw members are biased by the leg portions of the leg spring in the arrangement in which the closing element is kraftbeaufschlagbar. The pivot axis is fixedly arranged in the lock housing and may be designed in the form of a pin which extends through respective holes in the jaw members and thus a hinge arrangement of the jaw members is formed in the lock housing. The jaw members form in their movement about the pivot axis a pincer-like arrangement, wherein the jaw members for damping engagement against the closing element may have elastic pressure elements. The pressure elements can be made in one piece with the jaw elements or - in particular easily replaceable - have rubber elements which are arranged on the jaw elements in order to avoid a metal-metal arrangement between the jaw members and the closing element. According to a further advantageous embodiment, the jaw elements can be made in one piece with the pressure elements and consist of a plastic material. This results between the closing element and the jaw elements, a friction pair, of a metallic friction partner and a friction partner of a plastic material.

According to another possible embodiment of the present invention, the spring element may be formed as a leaf spring. Since, according to the invention, at least one spring element is accommodated in the lock housing in order to form the damping device, it is also possible for a plurality of leaf springs to be present, which form a leaf spring packet which is similar to a leaf suspension of a chassis in a motor vehicle. The leaf spring or the leaf springs are accommodated in the lock housing in such a way that the leaf spring or the leaf springs apply force to the closing element in the closed position. Preferably, the leaf spring can have two end regions, via which the leaf spring is received in the lock housing, wherein the recording creates a mobility of the leaf spring in the lock housing at least in one of the end regions by a guide arrangement. Similar to a fixed-lot storage can be done by the guide arrangement of the at least one end portion of the leaf spring, a length compensation, which is required when the leaf spring by the interaction with the closing element springs. To form the guide arrangement is advantageous to connect the end portion of the leaf spring with a sliding element which is guided in a groove which is introduced in the manner of a guide slot in the lock housing. It may be sufficient to accommodate the leaf spring movable only in one end, so that the opposite end portion forms the fixed bearing.

The arrangement of the leaf spring within the lock housing may be provided such that the leaf spring at least partially through the receiving recess therethrough extends, so that the closing element can interact with the leaf spring, when it is inserted into the receiving recess. The leaf spring or the leaf spring package may include a biasing member against which the closure member abuts to interact with the leaf spring or with the leaf spring package. In this case, the clamping element may have a shape corresponding to the outer contour of the closing element, usually a wire of a certain diameter. The clamping element may be made of a plastic material to form a favorable friction pairing with a metallic closing element.

According to a further possible embodiment of the damping device, the spring element may be designed as a helical spring and be received along a spring axis in the lock housing. In this case, the spring axis coincide with the insertion direction for insertion of the closing element in the receiving recess. Furthermore, a spring receptacle for receiving the coil spring may be provided, which is arranged stationary in the lock housing. Within the spring receiving a pressure piece is movably received, wherein the direction of movement of the pressure piece corresponds to the spring axis of the coil spring. As a result, the pressure piece can cooperate with the helical spring such that the pressure piece is subjected to force as a closing element in the closed position. The coil spring biases the pressure piece in the spring receptacle against a stop, so that the pressure piece comes to rest on the stop when the closing element is not inserted into the receiving recess. The pressure piece is located at the stop of the spring receiving, so this protrudes into a portion of the receiving recess, so that upon insertion of the closing element in the receiving recess, the pressure piece is released from the stop in the spring receiving and compressing the coil spring. The pressure piece can again have a geometry complementary to the geometric design of the closing element geometry.

According to yet another embodiment of the damping device in a lock for closing a flap of a motor vehicle, two spring elements can be provided and designed as flat coil springs, wherein the coil springs are accommodated in pincer-like and mutually movable clamping elements. The coil springs are arranged so that the closing element when inserted into the receiving recess centrally between the extending in a common plane Spiral springs is moved. The clamping elements receive the coil springs on their outer turn, wherein the clamping elements are movably received in a pivot axis in the lock housing, and wherein the clamping elements have Andruckbacken, via which the clamping elements force the closing element.

For stationary arrangement of the coil springs, a base member is provided which receives the coil springs via the respective spiral inside stationary in the lock housing, the coil springs are formed in the manner of an Archimedean spiral with a radial direction and are einfederbar in the radial direction, when the closing element with the clamping elements on the Andruckbacken interacts and pivot the jaws about the pivot axis. Consequently, the coil springs are not used - as usual - as torsion springs, but the coil springs spring in the radial direction, so that the individual spiral turns are moved towards each other. The respective outer turn of the coil springs can be sickle-shaped surrounded by the respective jaw of the jaws, wherein the enclosure at least concerns the area in which the coil springs interact with the closing element. In this case, the pressure jaws can protrude at least partially into the receiving recess, as long as the closing element is not guided into this. If the closing element is inserted into the receiving recess, this comes into contact with the pressure jaws and the turns of the spiral springs are moved radially toward one another. Consequently, a force is applied to the closing element by the coil springs. The clamping elements and the pressure jaws can be made in one piece and have a plastic material, wherein the closing element comprises a metallic material, so that the damping device leads to the desired damping of rattling noises of the closing element in the closed position in the lock.

Overall, the individual embodiments form examples of the design of the damping device, based on a spring element, which is preferably formed from a metallic material and is deformed within the resilient region of the spring element. The core of the invention is that the spring element biases the closing element in the insertion direction of the closing element, wherein the bias acts against the latch. In this case, the spring force can be formed as a directed force or as the resultant of at least two directional forces.

Figur 1a

ein erstes Ausführungsbeispiel der erfindungsgemäßen Dämpfungsein- richtung vor der Wechselwirkung des Schließelements mit der Dämpfungseinrichtung,

Figur 1b

das Ausführungsbeispiel der Dämpfungseinrichtung gemäß Figur 1a während der Wechselwirkung des Schließelementes mit der Dämpfungs- einrichtung, wobei das Federelement als Schenkelfeder ausgeführt ist,

Figur 2a

ein zweites Ausführungsbeispiel der erfindungsgemäßen Dämpfungsein- richtung vor der Wechselwirkung des Schließelementes mit der Dämpfungseinrichtung,

Figur 2b

das Ausführungsbeispiel der Dämpfungseinrichtung gemäß Figur 2a während der Wechselwirkung des Schließelementes mit der Dämpfungs- einrichtung, wobei das Federelement als Blattfeder ausgeführt ist,

Figur 2c

ein weiteres Ausführungsbeispiel des Federelementes der Dämpfungs- einrichtung, wobei mehrere Blattfedern ein Blattfederpaket bilden,

Figur 3a

ein drittes Ausführungsbeispiel der erfindungsgemäßen Dämpfungsein- richtung vor der Wechselwirkung des Schließelementes mit der Dämpfungseinrichtung,

Figur 3b

das Ausführungsbeispiel der Dämpfungseinrichtung gemäß Figur 3a während der Wechselwirkung des Schließelementes mit der Dämpfungs- einrichtung, wobei das Federelement als Schraubenfeder ausgeführt ist,

Figur 4a

ein viertes Ausführungsbeispiel der erfindungsgemäßen Dämpfungs- einrichtung, wobei zwei Federelemente vorgesehen und als Spiralfedern ausgeführt sind und

Figur 4b

eine Detailansicht der Anordnung der Spiralfedern zur Bildung der Dämpfungseinrichtung gemäß Figur 4a.

Further, measures improving the invention will be described in more detail below together with the description of preferred embodiments of the invention with reference to FIGS. It shows:

FIG. 1a

A first embodiment of the damping device according to the invention before the interaction of the closing element with the damping device,

FIG. 1b

the embodiment of the damping device according to FIG. 1a during the interaction of the closing element with the damping device, wherein the spring element is designed as a leg spring,

FIG. 2a

A second embodiment of the damping device according to the invention before the interaction of the closing element with the damping device,

FIG. 2b

the embodiment of the damping device according to FIG. 2a during the interaction of the closing element with the damping device, wherein the spring element is designed as a leaf spring,

Figure 2c

Another embodiment of the spring element of the damping device, wherein a plurality of leaf springs form a leaf spring package,

FIG. 3a

A third embodiment of the damping device according to the invention before the interaction of the closing element with the damping device,

FIG. 3b

the embodiment of the damping device according to FIG. 3a during the interaction of the closing element with the damping device, wherein the spring element is designed as a helical spring,

FIG. 4a

A fourth embodiment of the damping device according to the invention, wherein two spring elements are provided and designed as coil springs and

FIG. 4b

a detailed view of the arrangement of the coil springs to form the damping device according to FIG. 4a ,

The FIGS. 1a and 1b show a first embodiment of a damping device of a lock 1 for closing a flap of a motor vehicle, wherein the flap preferably relates to the tailgate of the motor vehicle. The lock 1 has a lock housing 10, which is mounted in the flap or in the frame of the motor vehicle. Opposite is located either in the door or in the context of the motor vehicle, a closing element 12, which is designed as a wire bracket according to the illustration. If the flap of the motor vehicle is open, the closing element 12 is located outside the receiving recess 14 in the lock housing 10, but if the flap of the motor vehicle is closed, the closing element 12 is inserted from the insertion direction 19 into the receiving recess 14 into the lock housing 10. Closes the lock 1, the flap of the motor vehicle, the latch 11 is pivoted within the lock housing 10, the latch 11 releases the closing element 12 in a release position and in a closed position as shown in FIG FIG. 1b the closing element 12 encloses, so that the flap is closed on the motor vehicle.

The latch 11 is in the closed position, and the closing element 12 is received in the receiving recess 14 in the lock housing 10, so by the operation of the motor vehicle and due to the sluggish mass of the flap, a movement of the closing element 12 in the in FIG. 1b shown closed position occur. This movement can lead to a rattling noise, so that a damping device may be required to suppress occurring rattling noises.

According to the first embodiment shown, the damping device has a spring element 13a, which is designed as a leg spring 13a and which applies force to the closing element 12 via the jaw elements 15a and 15b shown on the left side and right side of the closing element 12. The jaw members 15a and 15b are tongs-like relative mutually movable and are pivotable about a pivot axis 16 in the lock housing 10. The jaw elements 15a and 15b are subjected to such force by the leg spring 13a, so that pressure elements 26a and 26b provided on the jaw elements 15a and 15b protrude into the movement region of the closing element 12 within the receiving recess 14. In FIG. 1a is the closing element 12 in front of the closed position, so that the closing element 12, the pressure elements 26a and 26b of the jaw members 15a and 15b initially only contacted. The pressure elements 26a and 26b include in the situation shown a first opening angle α1, wherein the jaw elements 15a and 15b by the leg spring 13a in the in FIG. 1a are biased shown position.

If the closing element 12 is guided further into the receiving recess 14, and the lock catch 11 encloses the wire of the closing element 12, the jaw elements 15a and 15b are pressed apart by the pressure contact of the closing element 12 against the pressure elements 26a and 26b against the spring force of the leg spring 13a. As a result, the pressing members 26a and 26b include a second opening angle α2 that is larger than the first opening angle α1. The opening movement of the jaw elements 15a and 15b takes place against the spring tension of the leg spring 13a, so that the closing element 12 in the in FIG. 1b shown closed position by the pressure elements 26a and 26b against the latch 11 is subjected to force. The resultant force from the respective force-transmitting contact of both the first pressure element 26a and the second pressure element 26b runs counter to the insertion direction 19, so that the damping device consequently forces the closing element 12 against the latch 11.

The FIGS. 2a and 2 B show the lock 1 with a damping device comprising a leaf spring 13b. The leaf spring 13b is accommodated in the lock housing 10 and protrudes with a partial section into the receiving recess 14. If the closing element 12 is inserted from the insertion direction 19 indicated by an arrow into the receiving recess 14, the closing element 12 comes into contact with the leaf spring 13b. FIG. 2a shows a position of the closing element 12 in the receiving recess 14 with a contact of the closing element 12 to the leaf spring 13b, but this is not yet resiliently deformed. If the closing element 12 continues into the receiving recess 14th inserted, the leaf spring 13b is bent in the direction of the insertion direction 19, wherein, as shown in FIG FIG. 2b the leaf spring 13b is shown in a dashed view showing the position of the leaf spring 13b in the non-urged arrangement as in FIG FIG. 1 indicates, wherein the representation of the leaf spring 13 b in FIG. 2b corresponds to the bent position. In this case, the latch 11 surrounds the closing element 12, so that the latch 11 is in the closed position.

In order to create a mobility of the leaf spring 13b in the lock housing 10, the leaf spring 13b is firmly clamped in a fixed bearing 29 in the lock housing 11, and movably guided in a guide arrangement 17b. The fixed bearing 29 and the guide arrangement 17b are located in the respective end region of the leaf spring 13b, so that the leaf spring 13b has a free bending length between the end regions.

The guide arrangement 17b comprises a sliding element 28, which is connected to an end region of the leaf spring 13b (shown on the right-hand side). The sliding element 28 is guided in a groove 27, which is present in the form of a recess within the lock housing 10. If the leaf spring 13b is subjected to a force from the non-force-loaded arrangement by the closing element 12, and the bending line of the leaf spring 13b changes, a compensating movement of the at least one end region of the leaf spring 13b can take place by a mobility of the sliding element 28 within the groove 27. The direction of movement of the sliding element 28 within the groove 27 can be arranged approximately perpendicular to the insertion direction 19 for insertion of the closing element 12 in the receiving recess 14.

Figure 2c shows by way of example a leaf spring package 13b ', which is formed from a plurality of leaf springs 13b. In order to form the leaf spring package 13b ', a clamping element 31 is shown, which surrounds the leaf springs 13b and holds in a mutually arranged position. According to this embodiment, both the first end portion of the leaf spring 13b in a first guide assembly 17a and the second end portion of the leaf spring 13b are movably received within the lock housing 10 in a second guide assembly 17b. The leaf spring package 13b 'is each end connected to a sliding member 28 which is movably received in a respective groove 27. A positioning of the leaf spring assembly 13b 'is achieved by the clamping element 31, which has a contour has, which is complementary to the shape of the closing element 12, for example in the form of a wire element having a round cross-section formed.

In the FIGS. 3a and 3b is a further embodiment of a damping device in a lock 1 for closing a flap of a motor vehicle shown. The damping device comprises a spring element which is designed as a helical spring 13c. The coil spring 13c is received in a spring receptacle 20, which in turn is arranged stationarily in the lock housing 10 of the lock 1. The coil spring 13c extends along a spring axis 18, which corresponds to the insertion direction 19 for insertion of the closing element 12 into the receiving recess 14, see FIG. 3b , In FIG. 3a a position of the closure member 12 is shown prior to the application of force to the coil spring 13c, wherein, as shown in FIG FIG. 3b the closing element 12 is further inserted into the receiving recess 14 and wherein the latch 11 is in the closed position and engages around the wire of the closing element 12.

In the spring receptacle 20, a pressure piece 21 is also movably received, wherein the direction of movement of the pressure piece 21 of the spring axis 18 corresponds. The closing element 12, upon insertion into the receiving recess 14, comes into contact with the pressure piece 21, wherein the helical spring 13c is clamped between the spring seat 20 and the pressure piece 21, so that the pressure piece 21 is biased against a stop 32 in the direction of the closing element 12.

In FIG. 3a the pressure piece 21 is located on the stop 32 of the spring receiver 20. The coil spring 13c is shown in a relaxed or teilvorgespannten arrangement. FIG. 3b shows the lock 1, however, in a closed position, so that the closing element 12 is held by the latch 11 in the receiving recess 14. In this case, the pressure piece 21 is brought into contact with the closing element 12 and has detached from the stop 32.

The spring receptacle 20 may be accommodated via elongated holes 33 in the lock housing 10, so that the height of the application of force of the coil spring 13c to the closing element 12 can be determined by the position of the spring receptacle 20. If the spring receptacle 20 continues toward the receiving recess 14 within the Lock housing 10 is arranged, the resulting force is increased to the closing element 12, since the pressure piece 21 protrudes further into the receiving recess 14.

In the FIGS. 4a and 4b a further embodiment of the damping device is shown, wherein two spring elements 13d are provided, which are formed as coil springs 13d. The spiral springs 13d are accommodated in clamp-like mutually movable clamping elements 22a and 22b. The clamp elements 22a and 22b are accommodated in a movable manner in a pivot axis 24 in the lock housing 10. As shown, the closing member 12 can be moved from the insertion direction 19 shown against the coil springs 13d, so that the coil springs 13d can move.

As in FIG. 4a As shown, a base element 25 is provided, which receives the coil springs fixedly in the lock housing 10 via respective spiral inner sides 16a and 16b. Since the spiral springs 13d are designed in the manner of an Archimedean spiral, they can deflect in the radial direction R when the closing element 12 comes into contact with the clamping elements 22a and 22b. In this case, the clamping elements can have pressing jaws 23a and 23b in order to come into contact with the closing element 12. The outer turns of the coil springs 13b are inserted into the crescent-shaped Andruckbacken 23a and 23b. When the pressure jaws 23a and 23b are moved, the turns of the coil springs 13d are moved towards each other, resulting in a force application of the closing element 12, which is shown connected to a striking plate 30.

The invention is not limited in its execution to the above-mentioned preferred embodiments. Rather, a number of variants is conceivable, which makes use of the illustrated solution even with fundamentally different types of use. All of the claims, the description or the drawings resulting features and / or advantages, including design details, spatial arrangements and method steps may be essential to the invention, both for themselves and in various combinations.

LIST OF REFERENCE NUMBERS

1

lock

10

lock housing

11

latch

12

closing element

13a

Spring element, leg spring

13b

Spring element, leaf spring

13b '

Spring element, leaf spring package

13c

Spring element, coil spring

13d

Spring element, spiral spring

14

receiving recess

15a

jaw member

15b

jaw member

16

swivel axis

17a

guide assembly

17b

guide assembly

18

spring axis

19

insertion

20

spring mount

21

Pressure piece

22a

clamping element

22b

clamping element

23a

Andruckbacke

23b

Andruckbacke

24

swivel axis

25

base element

26a

pressure element

26b

pressure element

27

groove

28

Slide

29

fixed bearing

30

striking plate

31

clamping element

32

attack

33

Long hole

R

radial direction

α1

first opening angle

α2

second opening angle

Claims (15)

Lock (1) for firing a flap and in particular a tailgate of a motor vehicle, with a lock housing (10) in which a latch (11) is movably received to secure a closing element (12) in a closed position of the latch (11) and release in a release position of the lock latch (11), wherein a damping device is provided, by means of which the closing element (12) in the closed position in the lock housing (10) is absorbable attenuated,
characterized,
in that the damping device has at least one spring element (13a, 13b, 13c, 13d) accommodated in the lock housing (10), which biases the closing element (12) in the closed position against the latch (11), whereby a rattling noise of the closing element (12) in the closed position of the lock (1) is prevented. Lock (1) according to claim 1,
characterized,
that the lock housing (10) having a receiving recess (14) into which the closing element (12) from an inserting direction (19) can be introduced to enter into the closed position. Lock (1) according to claim 2,
characterized,
that the spring force or the resultant of the forces acting on the closing element (12) of the at least one spring element (13a, 13b, 13c, 13d) against the insertion direction (19) of the closing element (12) into the receiving recess (14) on the closing element (12 ) acts. Lock (1) according to one of claims 1 to 3,
characterized,
in that the spring element (13a) is designed as a leg spring (13a), two jaw elements (15a, 15b) which are movable at least in the manner of pliers being movably received in the lock housing (10) which can be prestressed by the spring element (13a) into a jaw closing position. Lock (1) according to claim 4,
characterized,
in that the jaw elements (15a, 15b) project at least partially into the receiving recess (14) in the jaw closing position, such that the jaw elements (15a, 15b) apply force to the closing element (12) in the closed position under springback. Lock (1) according to claim 4 or 5,
characterized,
in that the jaw elements (15a, 15b) are pivotably received in a pivot axis (16) in the lock housing (10), wherein the leg spring (13a) has a winding section which extends around the pivot axis (16) and the jaw elements (15a, 15b ) biases over leg portions of the leg spring (13) in the arrangement in which the closing element (12) is kraftbeaufschlagbar. Lock (1) according to claims 4 to 6,
characterized,
that the jaw members (15a, 15b) for damping abutment against the closure member (12) has elastic pressure elements (26a, 26b) have. Lock (1) according to one of claims 1 to 3,
characterized,
in that the spring element (13b) is designed as a leaf spring (13b) which is arranged in the lock housing (10) in such a way that the leaf spring (13b) applies force to the closing element (12) in the closed position. Lock (1) according to claim 8,
characterized,
that the leaf spring (13b) having two end portions, through which the leaf spring (13b) in the lock housing (10) is accommodated, wherein the housing at least in one of the end portions by a guide arrangement (17a, 17b) comprises a mobility of the leaf spring (13b) in the lock housing (10) creates. Lock (1) according to one of claims 1 to 3,
characterized,
in that the spring element (13c) is designed as a helical spring (13c) and is received along a spring axis (18) in the lock housing (10), wherein the spring axis (18) with the insertion direction (19) for insertion of the closing element (12) in the receiving recess (14) coincides. Lock (1) according to claim 10,
characterized,
is arranged that a spring receptacle (20) for receiving the coil spring (13c) is provided and fixed in the lock housing (10), wherein in the spring receiver (20) a pressure piece (21) in the insertion direction (19) is movably received, the thus with the coil spring (13c) cooperates, that the pressure piece (21) the force acting on the closing element (12) in the closed position. Lock (1) according to one of claims 1 to 3,
characterized,
in that two spring elements (13d) are provided and designed as flat spiral springs (13d), wherein the spiral springs (13d) are accommodated in clamping elements (22a, 22b) which are movable in tongs. Lock (1) according to claim 12,
characterized,
in that the clamping elements (22a, 22b) are accommodated movably in the lock housing (10) in a pivot axis (24), the clamping elements (22a, 22b) having pressure jaws (23a, 23b) via which the clamping elements (22a, 22b) engage the closing element (12) apply force. Lock (1) according to claim 12 or 13,
characterized,
in that a base element (25) is provided which receives the spiral springs (13d) in a stationary manner in the lock housing (10) via the respective spiral inner side (16a, 16b), wherein the spiral springs (13d) are designed in the manner of an Archimedean spiral with a radial direction (R) are and in the radial direction (R) are einfederbar when the closing element (12) with the clamping elements (22a, 22b) via the Andruckbacken (23a, 23b) interacts and the clamping jaws (22a, 22b) pivot about the pivot axis (24) , Lock (1) according to claims 12 to 14,
characterized,
that the clamping elements (22a, 22b) and the pressure jaws (23a, 23b) are made in one piece and have a plastic material, wherein the closing element (12) comprises a metallic material, wherein the damping device for damping rattling noises of the closing element (12) in the closed position in the castle (1) serves.

Images