CN103109027A

CN103109027A - Motor vehicle lock having a low-noise lock bow

Info

Publication number: CN103109027A
Application number: CN2011800073187A
Authority: CN
Inventors: T·本德尔; K·戈岑
Original assignee: Kiekert AG
Current assignee: Kiekert AG
Priority date: 2010-02-24
Filing date: 2011-01-08
Publication date: 2013-05-15
Anticipated expiration: 2031-01-08
Also published as: WO2011103847A2; DE102010009141A1; WO2011103847A3; CN103109027B

Abstract

A low-noise embodiment of a motor vehicle lock, which optimally transmits the forces that occur when driving a motor vehicle, is provided with a lock bow (8) having a specially designed bow leg (4). The outer wall (17) of the bow leg (4) has a surface structure (16), particularly in the contact area (15), consisting of grooves (19, 20) running obliquely to the longitudinal axis (22) or of corresponding webs (21). In addition to a special design of the grooves (19, 20) and the webs (21) on the outer wall (17) of the bow leg (4), it is thus possible to provide the rotary catch (11) in the receiving section (12) with such a surface structure (16) or similar in order to be able to transmit optimal pressure loads or other loads and in order to significantly minimize noise that may occur in this area when the vehicle is in motion.

Description

Motor vehicle lock with low noise lock bow

Technical field

The present invention relates to a kind of motor vehicle lock, this motor vehicle lock has lock carriage and door latch, this lock carriage has lock bow, this lock bow is with recess, bending of leg and bow bridge, this door latch has blocking mechanism, this blocking mechanism has admittance seat and the lock pawl for bending of leg, wherein, enters with door latch the bending of leg that contacts and be provided with the outer wall with special surface structure in contact area.

Background technology

Motor vehicle lock with lock carriage and door latch is known basically, and is wherein, that the lock carriage usually is designed to wire-shaped and be fixed on substrate.Same known lock carriage by plate forming for example goes out by stamping-out or the crooked subregion that goes out sheet material.Essentially in technical design consider, the lock carriage also can absorb the power that receives effectively in order to locking motor vehicle door reliably.For the motor vehicle lock in automobile construction, usually use the blocking mechanism that is consisted of by door latch and lock pawl, so that locking is fixed on the lock carriage on vehicle body.Like this, motor vehicle lock is fixed on motor vehicle door, automobile rear case plate or other movable automobile component usually.In the closure state of this motor vehicle lock, door latch acts on the lock carriage of particularly arc enforcement with its supporting arm.At this, the power that door latch for example also overcomes gate seal to the lock carriage move in motor vehicle lock and then self by lock pawl like this by locking, make to have got rid of unintentionally and open.Vibration and/or the distortion of bodywork component may occur at the motor vehicle run duration, it might also may cause the load of the increase of the contact area between door latch and bending of leg.Possible especially is to occur the relative motion of less degree between door latch and bending of leg.To consider this moment, frictional force and/or compressive stress may occur in the contact area between door latch and bending of leg.May form like this and be also referred to as the creakily noise of rattler.Such noise and the load of for this reason being responsible for are also disadvantageous.

Summary of the invention

Therefore the object of the invention is to, a kind of motor vehicle lock of so further exploitation and its lock carriage especially simultaneously make by the surface texture that improves and be shaped targetedly to reach load balance in minimum and the contact area between bending of leg and door latch.

According to the present invention, this purpose reaches thus, that is, the outer wall of bending of leg has such surface texture, and the longitudinal axis that the groove of this surface texture or convex tendon deviate from bending of leg extends the ground formation.

In this enforcement structure of groove and/or convex tendon, the surface texture that reaches at bending of leg contacts with door latch, the particularly point-like between its admittance seat.Determine thus ground, fully except in this surface texture also observe on whole surface adding can change more simply man-hour, realize the noise load and also have further minimizing of pressure load.

According to a kind of suitable enforcement structure regulation of the present invention, groove and/or convex tendon are formed in outer wall, produce zero screw thread.Zero screw thread means exactly, and groove or convex tendon extend perpendicular to longitudinal axis and preferably extend around whole bending of leg this moment, and this further also will at length and addedly set forth in the back.Zero screw thread like this can apply by simple and suitable mode---in other words better---makes, wherein, spacing between each threaded line can be identical or can be also different, decide according to the load that will how to deal with the regional of bending of leg.

The enforcement structure regulation that another kind according to the present invention is suitable, groove and/or convex tendon consist of by embossing, produce the cross annular knurl.In this cross annular knurl, groove and/or convex tendon extend mutually, but also deviate from again longitudinal axis, that is to say and depart from certain angle with it.The cross annular knurl causes forming the pin of projection, and this pin is best suited for and bears or load that balance occurs and avoid the known loud, high-pitched sound noise that creaks.

The another kind of possibility that surface texture forms is that groove and/or convex tendon are worked in outer wall, produce the diagonal angle annular knurl.Here, especially groove processing is that the plane tilts to extend, and there is no also to be processed with other groove as the cross annular knurl perpendicularly.Particularly advantageously be, the favourable distribution of the power that here occurs is also possible, and especially because door latch and the bending of leg that matches always only have a contact area that area is little, this contact area can change naturally in short time.

The pin that particularly exists for corresponding formation in the structure with cross annular knurl is given most advanced and sophisticated possibility.The present invention correspondingly stipulates, groove processing forms pyramid most advanced and sophisticated in outer wall.In fact formed contact surface or contact area are just point-like, wherein, can avoid the stress at pyramid tip by selecting corresponding material.In common groove, these grooves especially constitute tectate in contact area.

For file and similar machining tool, generally use rasp surperficial.The present invention stipulates now, also uses such rasp surface here in motor vehicle lock, and in this regulation, the surface texture of rasp format surface is worked in outer wall.Form thus more or less sharp-pointed or projection cusped edge, wherein, also can be by blunt according to these cusped edges of processing situation, in order to guarantee like this uniform load in contact area.

With the corresponding moulding of groove and/or convex tendon irrespectively and advantageously, groove and/or convex tendon constitute and produce such surface texture, this surface texture covers the whole outer wall of bending of leg around.Whether this is fairly simple usually, no matter by punching press or the similar process corresponding groove of shaping and/or convex tendon.Advantageously, so in the whole movement travel of door latch, and no matter where contact area is positioned at, and always guarantees desired load balance and minimum.

When making motor vehicle lock, also by the recess of stamped between bending of leg and bow bridge.Perhaps in this process or also by a process of separating, advantageously, this moment, groove and/or convex tendon were by punching press, preferably make when the recess of punching press lock bow.At this, why punching press is also favourable, be because this moment groove and/or convex tendon the degree of depth and also have spacing optimally to keep, thereby accurately realize according to the surface texture of entrusting regulation.

When groove by small click wheel be milled into produce simultaneously in outer wall corrugated trench wall or groove constitute corrugated extension generally the time, the further power or the load that spend of balance.At this, ripple extends perpendicular to the end of groove usually, but wherein also can expect fully, and trench wall is in tilted layout and then has corrugated enforcement structure, wherein, suppresses reliably thus the overload of bending of leg surf zone.

Set forth the front again, and this door latch contacts with the bending of leg that matches when door latch inserts.Due to this reason, according to aforementioned claim, the corresponding surface texture that is equipped with of the outer wall of bending of leg.But also can expect, the surface of the admittance seat in door latch is equipped with contact area, and this contact area has groove and/or convex tendon.At this, particularly when admitting the metal surface of seat, this surface texture in contact area can be by as realizing for the described identical mode of bending of leg and method in aforementioned claim.In a certain way advantageously, when admitting corresponding " processing " of seat, the cost of this processing is lower.On the other hand, dynamic balance or load balance are more difficult in this structure, simply because less area is available usually.

In order to guarantee the desired validity of corresponding surface texture, the present invention's regulation, the degree of depth of groove or the height of convex tendon are 0.08mm to 0.2mm, preferred+0.1mm, 0.12mm particularly preferably, and spacing is+0.5mm, preferred 0.6 is to 0.9mm.Obtain such contact area in this moulding of surface texture, these contact areas can satisfy described purpose especially well, because need not to worry the overload of these contact areas, its validity provides reliably.These explanations show, are not with large deep processing, but by the coarse processing that turns to characteristic targetedly with these zones.But the advantage in this structure is particularly, by the above-mentioned Assurance of Size of groove and convex tendon, no matter door knob be locked on bending of leg impingement angle with and final contact how, always can realize desired minimum and the pressure distribution of optimization.The groove of processing in door latch and convex tendon also should have described size, wherein, draw just the favourable possibility of describing when surface texture is configured on the door latch zone in following claim.

A kind of suitable form of implementation regulation according to the structure of contact area in the door latch zone, be provided with surface texture, preferably in the zone of the admittance seat of door latch with the form on lotus flower surface or galvano-cautery surface or by interpolation base coat or Topcoating to be coated with or to coat.Usually, in described bending of leg structure or but also admitting in seat, remove the clad that is made of plastics in admitting the seat zone.But equally also can expect according to the enforcement structure of just now describing, change like this or be equipped with this clad, make its surface or himself have generally targetedly surface texture or just in time have corresponding characteristic.By this structure of the admittance seat of door latch, can realize also that as described desired load distributes or especially suppress corresponding uncomfortable noise.

Salient point of the present invention particularly is, created a kind of motor vehicle lock, in this motor vehicle lock, perhaps one of lock bow or bending of leg or but door latch constitute in the zone of admitting seat, make desired load balance be therefore possible and particularly the noise load can obviously be minimized.Needed surface texture designs with diverse ways and mode for this reason, wherein, this surface texture is predetermined non-planar contact surface or corresponding contact area aptly, makes that correspondingly this can not cause the overload of respective groove or similar surfaces structure embodiment yet therewith.Except being used for the lower fringe cost of finished surface structure, equally especially very advantageously, can obviously reduce disadvantageous noise load when the load of the optimization of motor vehicle lock regional.

Description of drawings

Draw other details and the advantage of theme of the present invention from following description to accompanying drawing, preferred embodiment shown in the drawings comprises this necessary details and part.In the accompanying drawings:

Fig. 1 illustrates the top view of motor vehicle lock under open mode;

Fig. 2 illustrates the zoomed-in view of the lock bow with special surface structure;

Fig. 3 illustrates the sectional view of bending of leg, in order to the zero screw thread that represents to apply;

Fig. 4 illustrates the zoomed-in view that the bending of leg of being admitted by door latch comprises the corresponding contact zone;

Fig. 5 illustrates the lateral view of the lock bow of the surface texture on bending of leg with another kind of embodiment;

Fig. 6 illustrates the another kind structure of the surface texture of bending of leg;

Fig. 7 illustrates the sectional view of the bending of leg of a kind of special tectonic with surface texture;

Fig. 8 illustrates has corrugated groove as the lateral view of the lock bow of surface texture; And

Fig. 9 illustrates the zoomed-in view of the corrugated configuration with trench wall.

The specific embodiment

Fig. 1 illustrates a motor vehicle lock 1, and this motor vehicle lock is arranged in body of a motor car 2.Can see lock carriage 3 and lock bow 8, the recess 7 that this lock bow has two bending of

legs

4,6 and bends bridge 5 and consist of betwixt.Fig. 2 clearly show that corresponding contents.

Except lock carriage 3, a blocking mechanism 10 is shown, this blocking mechanism especially comprises having door latch 11 and the lock pawl 13 of admitting seat 12.Shown in example in, lock pawl 13 has inserted, makes the position of door latch 11 shown in can not leaving.In this position, the different motion of namely locking carriage 3 and blocking mechanism 10 by two parts can cause load, makes corresponding load can occur and especially also have uncomfortable noise in contact area 15.

Fig. 2 illustrates contact area 15 and has special structure or processing department, in order to create a kind of special surface texture 16.The whole outer wall 17 of the bending of leg 4 of being loaded is provided with

groove

19,20 or convex tendon 21, and these grooves or convex tendon extend perpendicular to the longitudinal axis 22 of bending of leg 4.These

grooves

19,20 form so-called zero screw thread 24.Each " threaded line " of zero screw thread 24

groove

19,20 in other words has spacing 35, this spacing greater than 0.5mm, be preferably 0.6 to 0.9mm.Lock bow 8 is positioned on base plate 18 or the part of base plate 18, thereby creates a stable member on the whole.

Fig. 3 illustrates the sectional view of bending of leg 4, wherein becomes to be clear that, each

groove

19,20 of zero screw thread 24 extends parallel to each other and extends perpendicular to longitudinal axis 22 respectively at this.Its degree of depth represents with 34, regulation for this reason wherein, and groove or convex tendon should have 0.08 to 0.2mm, preferred+0.1mm, preferred 0.12mm.This shows, the groove 19 that processes or apply, 20 or convex tendon 21 can be applied on corresponding bending of leg 4 as surface texture 16 with less cost.

Fig. 4 also illustrates, and here bends leg 4 to be shown in figure 2 that is to have that bending of leg of zero screw thread 24.Shown in contact area 15 or 32, door latch 11 or admit seat 12 can have inserts here, this inserts also should support to be provided with surface texture 16 bending of leg 4 effect or can even bear its function.In inserts shown in Figure 4, surface 31 is equipped with equally surface texture or is smooth.As appreciable in Fig. 2, removed the clad 14 in this zone at this.Except this structure, but also there is such possibility, that is, actual clad 14 is provided with coating or constitutes so on the whole by adding backing coat or top coat, makes this actual clad 14 also bear the task of the surface texture structure of specific type.Appreciablely be, the bending of leg 4 of special formation is just in time inserted and is admitted in seat 12 and flatly cling to so hermetically in described contact area 15,32, thus transfer charge.

Form special surface texture 16 in Fig. 5, or rather with the form of cross annular knurl 25.In embodiment shown here, this cross annular knurl 24 arranges around bending of leg 4, wherein, forms the pin 33 of a type, and these pins have flat or smooth surface here.But according to Fig. 7, these pins 33 also can have the shape at pyramid tip 27, in order to realize the load of point-like.For groove, it can be also tectate structure.

Fig. 6 illustrates a kind of structure, and surface texture 16 has the shape of diagonal angle annular knurl 26 in this structure, that is here each annular knurl or

groove

19,20 favour longitudinal axis 22 and also favour in other words base plate 18 extensions.Be understandable that, this diagonal angle annular knurl 26 also can tilt to extend from right to left ground and arrange, in order under any circumstance all obtain desired adaptive surface texture 16.

Fig. 8 and other structures differently illustrate the groove 19 ', 20 ' that extends along the direction of longitudinal axis 22.Must determine in this structure, the groove 19 ', 20 ' that these corrugated are extended also can consist of and be set to along compare different direction extensions from longitudinal axis 22 according to Fig. 6, Fig. 5 or Fig. 2.The shape of this ripple 23 also can have different intensity and shape as shown in FIG. 8, that is, ripple 23 can with shorter sequence setting or but its can extend or also can be provided with as with the tip as shown in Reference numeral 36 according to sine curve.

Fig. 9 shows at last, and

trench wall

29,30 itself also can have bellows-shaped, when this proves suitable.At this,

trench wall

29,30 can stand vertically ground or but also be positioned at obliquely on groove bosom 37.

All features of listing, only to be considered as individually and in combination the present invention from the feature that accompanying drawing draws in addition be important.

Claims

1. motor vehicle lock, this motor vehicle lock has lock carriage (3) and door latch (11), this lock carriage has lock bow (8), this lock bow is with recess (7), bending of leg (4, 6) and the bow bridge (5), this door latch has blocking mechanism (10), this blocking mechanism has admittance seat (12) and the lock pawl (13) for bending of leg (4), wherein, enter with door latch (11) bending of leg (4) that contacts and be provided with the have special surface structure outer wall (17) of (16) in contact area (15), it is characterized in that, the outer wall (17) of bending of leg (4) has such surface texture (16), the groove (19 of this surface texture, 20) or convex tendon (21) longitudinal axis (22) that deviates from bending of leg (4) extend ground and consist of.

2. according to motor vehicle lock claimed in claim 1, it is characterized in that, groove (19,20) and/or convex tendon (21) are formed in outer wall (17), produce zero screw thread (24).

3. according to motor vehicle lock claimed in claim 1, it is characterized in that, groove (19,20) and/or convex tendon (21) consist of by embossing, produce cross annular knurl (25).

4. according to motor vehicle lock claimed in claim 1, it is characterized in that, groove (19,20) and/or convex tendon (21) are worked in outer wall (17), produce diagonal angle annular knurl (26).

5. according to motor vehicle lock claimed in claim 1, it is characterized in that, groove (19,20) is worked in outer wall (17), forms pyramid most advanced and sophisticated (27).

6. according to motor vehicle lock claimed in claim 1, it is characterized in that, the surface texture of rasp format surface (16) is worked in outer wall (17).

7. according to motor vehicle lock claimed in claim 1, it is characterized in that, groove (19,20) and/or convex tendon (21) constitute and produce such surface texture (16), and this surface texture covers the whole outer wall (17) of bending of leg (4) around.

8. according to motor vehicle lock claimed in claim 1, it is characterized in that, groove (19,20) and/or convex tendon (21) are by punching press, preferably make when the recess (7) of punching press lock bow (8).

9. according to motor vehicle lock claimed in claim 1, it is characterized in that, groove (19,20) is milled in outer wall (17) by small click wheel, produces corrugated trench wall (29,30); Perhaps groove constitutes generally corrugatedly and extends.

10. according to motor vehicle lock claimed in claim 1, it is characterized in that, the surface (31) of the admittance seat (12) in door latch (11) is equipped with contact area (32), and this contact area has groove (19,20) and/or convex tendon (21).

11. according to the described motor vehicle lock of one of the claims, it is characterized in that, the degree of depth (34) of groove (19,20) or the height of convex tendon (21) are 0.08 to 0.2mm, preferred+0.1mm, 0.12mm particularly preferably, and spacing (35) is+and 0.5mm, preferred 0.6 is to 0.9mm.

12. according to the described motor vehicle lock of one of the claims, it is characterized in that, be provided with surface texture (16), preferably in the zone of the admittance seat (12) of door latch (11) with the form on lotus flower surface or galvano-cautery surface or by interpolation base coat or Topcoating to be coated with or to coat (14).