EP2734691B1 - Lock for a vehicle door with a spring plate in the inlet region of the locking bolt - Google Patents

Description

The invention relates to a lock for a door or flap of a motor vehicle or building, which has a lock housing and a catch and a pawl exhibiting locking mechanism, wherein the catch is pivotally mounted about an axis and associated with the body and belonging to the lock striker interacts when opening and closing the door.

Motor vehicle locks, but also other locks with striker and rotary latch are basically known, wherein the striker are often shaped wires that are fixed to a base plate. In motor vehicle locks in automotive usually locking a catch and pawl is used to lock the body side mounted striker or set the door to it. The motor vehicle lock is usually fastened to the motor vehicle door or to a tailgate. In the closed state of such a lock, the catch often engages with its load arm around the locking pin of the striker. The catch also pulls the locking bolt against the force of the door seal in the motor vehicle lock and is then blocked even by means of the pawl so that accidental opening is excluded. When driving the motor vehicle, however, movements occur between the rotary latch and the locking bolt. In particular, it is possible that relative movements between the rotary latch and the latch bolt lead to compressive stresses and / or frictional forces, so that it can come just with the addition of dust grains to the so-called creaking, ie corresponding noise developments. For safe operation of a lock and for influencing the said sounds describes the DE 20 2006 018 744 U1 a damper element or a damper, which is arranged with the door or flap closed directly adjacent to the rotary latch and designed yielding to cushion the inserted over the lock inlet area locking bolt. This damper element has a guide portion which forms at least a portion of the receptacle in the direction of the opening portion of the lock inlet region from the WO 2007/073723 A1 is a motor vehicle door lock with a catch of rotary latch and pawl and a steamer element known. The round there executed damper element limited in conjunction with associated Gesperreanschlägen both an opening and a closing movement of the rotary latch. This damper element consists of an elastomeric plastic.

From the publication EP 0 978 606 A2 a closure with a spring plate is known, which comprises a locking pin in a closed position.

The present invention has for its object to further reduce noise developments between the catch and latch bolt and to prevent as completely as possible, in particular to avoid a so-called creaking in the field of lock connection to the body.

The object of the invention is achieved by the subject matter of claim 1.

By this spring plate, in addition to the measures provided for in the prior art damper elements possible movements of the corresponding door or flap perpendicular to the direction of travel of a vehicle intercepted at a vehicle side door, therefore, such movements or vibrations that take place around the corresponding hinge points of the door. The spring plate used according to the invention does not have the high temperature dependence of the otherwise used rubber or plastic buffers. If necessary, the usual use of the above-described damper arranged next to the rotary catch according to DE can be used DE 20 2006 018 744 U1 and possibly also on the there also described Inlet lip are omitted. For the production of the entire lock housing lower tool costs and you have in the choice of materials more options, especially since the previously common spring lip is eliminated. It is advantageous, finally, that the lack of additional openings, for example, for the rubber buffer in the lock housing, the necessary water management is lower.

According to an advantageous embodiment of the invention it is provided that the spring plate is designed as a spring steel existing spring clip. Such a spring clip can be designed so that the unavoidable movements of the motor vehicle door are damped during driving. The spring plate used thus restricts the assignments of the lock housing and thus the door in the Z direction, ie in the direction perpendicular to the direction of travel of a vehicle in this case so that so that the door is additionally quiet The said additional or creaking noises fall less or completely eliminated.

It is provided that
the striker includes a striker, a support bolt, and a cross bolt disposed therebetween, the striker comprising the striker when the lock is opened and closed, and the plunger comprises the cross bolt in the closed position of the lock. When closing the door of the locking pin is inserted into the spring clip, which then surrounds the upper end portion of the locking bolt and in particular to the cross bolt and this securely detected, so as to secure the immobilization of the door. Because the spring plate engages the striker in the region of the transverse bolt and the catch engages the striker in the area of the striker, both components act to dampen the striker, at a distance from each other and in other directions, which has an advantageous effect.

An expedient embodiment of the spring plate provides that the spring plate has two outgoing from a round arch spring arms, the Fixing in the lock housing with their free ends are bent away from the cross bar. In this way, the spring plate acts deliberately and increasing the pressure forces in the region of the bends on the cross bolt of the striker, so that when driving the vehicle by movements of the door or flap resulting noise are attenuated accordingly. The cross pin is arranged between the two spring arms after reaching the closed position of the castle, so that the pressure forces are advantageous in the Z direction, that is perpendicular to the direction of travel of the vehicle.

According to one embodiment, it is provided that the spring arms have bends, with which the spring arms linearly shaped and formed the application and concerns on the cross bolt. Thus, the two spring arms can act in the optimum range on the cross bolt this fixing and take effect together with the catch, so that the door or flap is so quiet as desired.

For easy assembly of the lock housing in particular but in particular of the spring plate is provided that the lock housing has the spring plate with the round arch and the spring arms receiving internals. In this case, no holes or omissions are provided in the lock housing, which, as already mentioned, facilitates the water management, but in particular the spring plate or the spring clip can be easily inserted into the lock housing, then equal to take the correct position without additional welding o. Ä.

This insertion is particularly facilitated by the fact that the baffles are designed according to the arc extending in accordance with arcuate and thus allow the insertion or insertion of the spring plate. Due to the spring action of the spring plate no separate setting in the fittings is necessary, but rather fits the entire spring clip in the circumstances of the lock housing advantageous safe.

An overload of the spring arms or an unintentional deformation is excluded by the fact that the internals are designed and arranged limiting the movements of the free ends of the spring arms. This means that in particular the free ends of the spring arms are not only fixed by the spring action in the internals, but also by the internals limited movements on the cross bolt out or can run away from it.

The resilient action of the spring plate can also be adjusted in addition to the choice of material that the spring plate is formed preferably over the entire length at least with the diameter of the transverse pin correspondingly wide or a round arch with a Reduziersprung.

The invention is characterized in particular by the fact that a component is made available by the spring plate, which ensures without much additional manufacturing and setup costs that the noise during operation of the vehicle are largely or even completely avoided. The door is kept still both by the catch itself and in particular by the spring plate. Even if dust or even sand should get into the lock housing, the occurrence of creaking noises is prevented by the selected design in particular of the lock. A further advantage is that for the assembly of the spring plate, the lock housing does not need to be pierced or otherwise influenced, but that the spring plate is simply inserted into provided internals or attachments of the lock housing.

Figur 1

eine Draufsicht auf das Schlossgehäuse mit der Drehfalle im geschlossenen Zustand des Schlosses,

Figur 2

eine Draufsicht auf ein Schlossgehäuse, hier ohne Drehfalle,

Figur 3

einen Längsschnitt durch das Schlossgehäuse mit Schließbolzen und Federblech,

Figur 4

ein Querschnitt durch das Schlossgehäuse mit Schließbolzen und Federblech,

Figur 5

eine Draufsicht auf den Schlosseinlaufbereich mit dem eingesetzten Federblech und

Figur 6

eine perspektivische Darstellung und Verdeutlichung der Positionen von Drehfalle und Federblech im Verhältnis zum Schließbügel.

Further details and advantages of the subject invention will become apparent from the following description of the accompanying drawings, in which preferred embodiment is shown with the necessary details and items. Show it:

FIG. 1

a top view of the lock housing with the catch in the closed state of the castle,

FIG. 2

a plan view of a lock housing, here without a catch,

FIG. 3

a longitudinal section through the lock housing with locking pin and spring plate,

FIG. 4

a cross section through the lock housing with locking pin and spring plate,

FIG. 5

a plan view of the castle inlet area with the inserted spring plate and

FIG. 6

a perspective view and clarification of the positions of the catch and spring plate in relation to the striker.

FIG. 1 shows a part of an intended for motor vehicles lock 1 with the door 2 associated lock housing 3 and the striker 9, which is associated with the body 8. In the lock housing 3, the catch 4 is housed and also further associated, but not shown here components of the locking mechanism and the fuse, for. B. the pawl. The rotary latch 4 is shown in the closed state of the lock 1, wherein the rotary latch 4 has pivoted or rotated about the inserted over the lock inlet region 5 striker 9 and its locking pin 10. Recognizable is the spring plate 15, which here has a certain distance from the locking pin 10, as well as the axis of rotation 22 around which the rotary latch 4 is rotated. Due to the special shape of the rotary latch 4, the door 2 pulls during the closing process in the direction of the body 8, so that it comes to closing the door 2. The closing also takes place against the force of the door seals, not shown here. When tightening the door 2, the rotary latch 4 sets tightly against the locking pin 10 of the striker 9, which FIG. 1 makes it clear. These Movement of the door 2 takes place in the Y direction, that is, virtually horizontal to the direction of travel in the direction of the motor vehicle seats.

at FIG. 2 the catch 4 is not mounted with and therefore not visible. As a result, the shape or position of the striker 9 is clearly visible. With 10 of the locking pin and with 11 of the opposite support bolts are referred to, which are connected to each other via the cross bolt 12.

The spring plate 15 is formed as a clip 16 and spring clip, wherein the round arch 17 is responsible for the necessary contact pressure on the cross bolt 12 with. At this round bow 17 close two spring arms 18, 19, whose free ends 20, 20 'are slightly bent or folded. The two spring arms 18, 19 are as in FIG. 2 indicated exactly in the area of the bend 24 on the striker 9 and especially on the striker 12 at. Further details are shown later.

FIG. 3 shows a longitudinal section through the lock housing 3, wherein it can be seen that the Bolzenfuß 23 of the locking bolt 10 has a shape that makes a secure anchoring in the base plate not shown possible. The locking bolt 10 itself is in some way retracted into the lock housing 3 and is encompassed in the area of the transverse bolt 12 by the spring plate 15 shown in dashed lines here. Visible is next to the striker 9 and locking pin 10 and the rotary latch 4 with its axis 22. Due to the selected section here the inner sides of the rotary latch 4 are reproduced at a certain distance from the locking pin 10.

The spring plate 15 is inserted into designated fixtures 26 into the lock housing 3, wherein the particular shape of the spring plate 15 particularly by FIG. 5 once again highlighted. In this case, in addition to the Z-direction 37 and the direction of travel 35, that is, the X-direction indicated, which makes it additionally clear that the retraction of the striker 9 in the Lock housing 3 and the lock inlet area 5 at right angles, but to the direction of travel runs horizontally.

Deviating from FIG. 3 is at FIG. 4 reproduced a cross-section, which is also recognizable here that only the locking pin 10 and just here also the cross pin 12 are influenced by the spring plate 15 to the best possible fixation of the locking pin 10 in the rotary latch 4 and in the spring plate 15th to secure. It can be seen that the rotary latch 4 in the region of the bolt foot 23 comprises the locking bolt 10, while the sphere of influence of the spring hinge 15 at a distance from it lies in the interior of the lock housing 3 in the region of the transverse bolt 12 and the upper end of the locking bolt 10. Is recognizable in FIG. 4 In addition, that the spring plate 15 has a so-called Reduziersprung 27, ie the width of the spring plate 15 is greater in the region of the transverse pin 12 and thus the spring arms 18, 19 than in the area of the round arch 17 and the locking bolt 10. The correspondingly larger width in the region of the transverse pin 12 allows in particular an effective pressing against the cross bolt 12 and thus to the striker 9, while in the round bow 17, the spring plate 15 is correspondingly narrower. Thus, the spring force can be influenced by the said reduction jump 27 is selected adjusted accordingly. Also in FIG. 4 It can be seen that the spring plate 15 can be arranged securely via internals 26 within the lock housing 3, wherein advantageously the preformed component spring plate 15 can be easily inserted from above into the recesses or internals 26. The direction of travel or X-direction is designated by 35 and the Y-direction by 36, that is to say the horizontal direction to the direction of travel, in which the striker 9 is moved into the area of influence of the lock housing 3 and in which the seats run.

The lock inlet area 5 is in FIG. 5 clearly visible, this lock inlet region 5 is funnel-shaped. Visible is also the storage of the free ends 20, 20 'of the spring arms 18, 19 in the Einbauten26 of Lock housing 3. It is also recognizable that adjoins this spring arms 18, 19 of the circular arc 17, the two spring arm 18, 19 connects to each other. It is further clarified that the spring arms 18, 19 in particular in the area of the bends 24 create a tight line on the transverse bolt 12 and thus on the striker 9, so that here the desired additional fixation to the catch 4 is always safely realized. It can be seen in this figure further that the range of motion of the spring arms 18, 19 and their free ends 20, 20 'is limited by the correspondingly shaped internals 26, so that an overload of the spring plate 15 is excluded. FIG. 5 further shows that the entire spring plate 15 can be inserted from above into the corresponding fittings 26. If necessary, it is possible that on the inside of the spring plate 15 elastic plastic material 29 is applied to catch and bump off any shocks during insertion of the locking pin 10 into the lock housing 3 easy. Again, the Z-direction 37, extending transversely to the direction of travel, and the Y-direction 36 indicated.

FIG. 6 Finally, the important parts of the castle 1 shows a perspective view and the assignment of these components to each other. Recognizable is the striker 9 with the locking pin 10 and the support pin 11 and the transverse pin connecting them 12. While the catch 4 is pivoted or turned around the locking pin 10 when closing the lock 1 so as to move the door 2 in the direction of the body 8 , The spring plate 15 is pushed in the form of the bracket 16 in the direction 36, ie in the Y direction, on the striker 9 and in particular on the cross bolt 12, wherein also conditionally the locking bolt 10 is enclosed. This spring plate 15 now presses in the position shown with the spring arms 18, 19 and in particular in the region of the bend 24 on the transverse pin 12 and in the Z direction 37, thereby framing the cross pin 12 and thus the door 2 advantageously additionally quiet can be. 35 indicates the X direction, that is to say the direction of travel, while Y or 36 specifies the insertion direction with which the spring plate 15 slides onto the transverse pin 12.

All mentioned features, including the drawings to be taken alone, are considered to be essential to the invention alone and in combination.

Claims (8)

1. Lock for a door (2) or a flap of a motor vehicle or a building, which comprises a lock housing (3) and a catch and a pawl containing locking mechanism, wherein the catch (4) is arranged pivotable about an axis (22) and, when the door (2) is opened or closed, interacts with a striker (9), which is assigned to the car body (8) and belongs to the lock, wherein a spring steel sheet (15), which is oriented at least substantially in parallel to the catch (4) and which encompasses the striker (9) in the closing position of the lock, is arranged in the lock intake area of the lock housing (3), characterized in that the striker (9) comprises a locking bolt (10), a support bolt (11) and a cross bolt (12) arranged there between, wherein the catch (4) encompasses the locking bolt (10) during opening and closing the lock and the spring steel sheet (15) encompasses the cross bolt (12) in the closing position of the lock.
2. Lock according to claim 1, characterized in that the spring steel sheet (15) is designed as a spring clip (16) consisting of spring steel.
3. Lock according to one of the preceding claims, characterized in that the spring steel sheet (15) has two spring arms (18, 19) that extend from a round arch (17) and which are with its free ends (20) bent off away from the cross bolt (12) for fixation in the lock housing.
4. Lock according to one of the preceding claims, characterized in that the spring arms (18, 19) have bent off members (24), with which the spring arms (18, 19) are designed to facilitate lying and abutting at the cross bolt (12) in a line shaped manner.
5. Lock according to one of the preceding claims, characterized in that the lock housing (3) has installations that receive the spring steel sheet (15) with the round arch (17) and the spring arms (18, 19).
6. Lock according to claim 5, characterized in that the installations (26) are designed to allow inserting or plugging in of the spring steel sheet (15).
7. Lock according to claim 5, characterized in that the installations (26) are designed and arranged to limit the movement of the free ends (20) of the spring arms (18, 19).
8. Lock according to one of the preceding claims, characterized in that the spring steel sheet (15) is designed of being wide, preferably over the entire length, corresponding to at least the diameter of the cross bolt (12) and having a round arch (17) with a reduction step (27).

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