CN106574471A

CN106574471A - Latch and automotive vehicle latch assembly

Info

Publication number: CN106574471A
Application number: CN201580037790.3A
Authority: CN
Inventors: L·迪布洛克
Original assignee: You Xin Co Of France
Current assignee: You Xin Co Of France
Priority date: 2014-07-10
Filing date: 2015-06-30
Publication date: 2017-04-19
Also published as: EP2966246A1; EP3167132B1; JP6626088B2; WO2016005233A1; JP2017522473A; BR112017000432B1; EP3167132A1; BR112017000432A2

Abstract

Latch assembly for an automotive vehicle with at least one first element and a second element, one element being mobile to the other one, comprising : - a latch (1) intended to be fixed in the first element, - a striker (2) with at least one wire and intended to be fixed in the second element, the latch being able to maintain the striker (2), the latch (1) further comprising a claw adapted to receive the wire by rotating around the wire (22) according to a first axis (XI) and having at least one recess (3) in a straight or convex shape disposed in the body of the latch (1) facing the said wire (22), the said recess (3) having a first end (31) and a second end (32), a length (L) of a segment (S) between the first end and the second end being superior to the diameter (d) of the wire facing the recess.

Description

Breech lock and motor vehicles latch assembly

Technical field

The present invention relates to the field of motor vehicles latch assembly.

Background technology

Fig. 1 illustrates the example of motor vehicles latch assembly, and which includes breech lock 1 itself and ram 2.Breech lock is arranged on and is moved In dynamic element, it is door here, and by ram in a part for fixed motor vehicles compared with door.

Breech lock 1 generally includes the metallic object that can be moulded by plastic paint.Ram 2 is generally golden by metallic object 21 and two Category line 22 is made.When motor vehicle door is closed, ram 2 is entered and is contacted with breech lock 1.Direction of the ram 2 according to first axle (not shown in figure 1) is entered and is contacted with U-shaped pawl 1.When the opening is closed, the single line of ram is entered and is contacted with pawl, around Rotary shaft rotates.When entering and when contacting with pawl, the line of ram position is according to the relative displacement D perpendicular to first axle X1 1 And change between 2 millimeters.Despite the presence of amortization element 3, but due to this change of position, the line of ram will into and connect Touch the pawl being close to amortization element 3.Therefore, produce and make an uproar due to the shock between ram and the pawl of breech lock when the door closes Sound.In fact, the contact between ram and pawl is rigid, and change in location of the ram relative to pawl is not received.

The content of the invention

The purpose of the present invention is to reduce the noise when the moving element of motor vehicles is closed.

For this purpose, the present invention provides a kind of latch assembly for motor vehicles, which has at least one first elements and the Two element, an element are movable to another element, including：

- breech lock that is fixed in the first element is intended to,

- there is at least single line and the ram being fixed in the second element is intended to, breech lock can keep ram,

The breech lock also includes being suitable to by being rotated and the pawl of the reception line around the line according to first axle, and has There is at least one recess of the straight or convex shape arranged towards the line in the main body of breech lock, the recess has first End and the second end, the diameter of the length of the part between first end and the second end more than the line towards recess.

When the moving element of the first and second elements is closed, produced due to the contact between pawl and the line of ram Noise is absorbed by the recess with the scattered length that can absorb line position.

The latch assembly of the present invention can realize the important reduction of noise with cheap and effective manner, and not change breech lock With the design of the other parts of ram.

According to non-limiting embodiment, latch assembly can be including one or more in following supplementary features：

- wherein, the recess is elongated through hole, and which can simplify manufacture,

The first face of-recess with the line towards ram, first face are convex or straight, and which can improve The absorption of noise and more preferable intensity,

The thickness that-the recess is limited with the direction along first axle, the thickness is identical along recess, and which can be Trade off between good impact absorbing and required minimum material,

In the embedded deformable material of-pawl, shock and the absorption of noise of line on pawl are which improved.

The present invention also provides a kind of motor vehicles, and which includes at least one moving element and retaining element, and an element can Another element is moved to, and according at least one latch assembly in any one of the preceding claims wherein, by the door bolt Lock is arranged in the second element of motor vehicles in the first element and by the ram so that pawl is hit by surrounding Hit the single line rotation of part and keep ram.

According to advantageous embodiment, moving element is opening such as door, and retaining element is chassis.

Description of the drawings

Now only by example, with reference come describe device and/or method according to embodiment of the present invention some Embodiment, wherein：

- Fig. 1 shows the schematic diagram of the motor vehicles latch assembly of prior art；

- Fig. 2 shows the schematic diagram of motor vehicles latch assembly according to the embodiment of the present invention.

It should be noted that ground is that, in some views of accompanying drawing, identical reference represents similar part.

Specific embodiment

Fig. 2 shows motor vehicles latch assembly, and which includes breech lock 1 itself and ram 2.The latch assembly is intended to use In the moving element for opening and closing motor-driven element.Moving element can be door or trunk and be rotated according to rotary shaft.

The breech lock includes the pawl 1 being intended in the first element, and which can be moving element.

The ram 2 includes main body 21 and at least single line 22, is two here.Line is intended to installed in the second element In, which can be the retaining element not moved relative to moving element, such as chassis.

The pawl 11 can keep ram 2 by rotating around line 22 according to first axle X1.Therefore, first axle X1 quilt It is defined as the axle in ram insertion breech lock when motor vehicles moving element is closed.

The pawl 11 also includes recess.According to present embodiment, recess is to set towards the line 22 in the main body of pawl 11 The elongated through hole 3 put.Allow to simplify the manufacture of breech lock 1 using through hole.

The recess can also be blind hole made by soft material.

According to the present invention, the recess or through hole here 3 have first end 31 and the second end 32, in first end and second Diameter d of length L of the part S between end more than the line of ram.

Therefore, the dispersion of the component regardless of ram, recess are configured to towards the contact area between line and pawl.Cause This, the present invention can height reduction noise because the online contact position and pawl between of recess appears similar to amortisseur.

As described above, the recess 3 is formed in the main body of pawl, so as to when moving element is closed so that with wall One limit towards in the line 22 of ram recess.The recess has first end 31 and the second end 32.According to Advantageous embodiment, length L are substantially better than the diameter d and ram of the line 21 of ram according to perpendicular to first axle X1 The relative displacement D sums of the second axle X2.According to the specification of manufacturer, this relative displacement can on the whole in about two millimeters of peace treaties Change between four millimeters.

According to another advantageous embodiment, first face 33 of the recess with the line 22 towards ram is described First face 33 is straight or convex.This shape allows to produce due to the shock between pawl and line when moving element is closed The higher and very effective reduction of noise.The shape also causes breech lock to have more preferable robustness.

The thickness e of the recess is important not as length L of recess.Due to thickness and length, recess has to be enough to absorb makes an uproar The flexibility of sound, and also the high-drag with all contacts for being used to bear breech lock and pawl.According to advantageous embodiment, recess Thickness e can be limited on the direction of first axle X1 along the consistent length of the recess, thickness e, this contributes to recess Manufacture.

The pawl can advantageously comprise deformable material.This deformable material can be arranged in the shell of pawl.Pawl Deformable material can be embedded with.As example, the injectable elastomer including thermoplastic elastomer (TPE) for selecting in lists, example Such as Can be drawn with polyamide such as PA6.6 With.

When breech lock 1 includes the metallic object moulded by plastic paint, then in terms of manufacturing process, it is through hole in recess In the case of, the latter is made as metal insert is inserted in the mould of molded plasticss coating.

Claims

1. the latch assembly of motor vehicles is used for, and which has at least one first elements and the second element, and one of element can Another element is moved to, the latch assembly includes：

- breech lock (1), which is intended to be fixed in the first element,

- ram (2), which has at least single line and is intended to be fixed in the second element, and the breech lock can keep clashing into Part (2),

Breech lock (1) also includes being suitable to by being rotated and the pawl of the reception line around the line (22) according to first axle (X1), and And at least one recess (3) with the straight or convex shape arranged towards the line (22) in the main body of breech lock (1), institute Recess (3) is stated with first end (31) and the second end (32), the length (L) of the part (S) between the first end and the second end More than the diameter (d) of the line towards the recess.

2. latch assembly according to claim 1, wherein, the recess is elongated through hole.

3. latch assembly according to claim 1 and 2, wherein, first face of the recess with the line towards ram (33), first face is straight or convex shape.

4. according to latch assembly in any one of the preceding claims wherein, wherein, the recess is with the first axle The thickness (e) limited on direction, the thickness are constant along the recess.

5. according to latch assembly in any one of the preceding claims wherein, wherein, the pawl is embedded in deformable material.

6. motor vehicles, which includes：At least one first elements and the second element, one of element are movable to another yuan Part；And according at least one latch assembly (1) in any one of the preceding claims wherein, breech lock (1) is installed in first yuan In part and ram (2) is in the second element of motor vehicles so that pawl is rotated by the single line around ram And keep the ram.

7. motor vehicles according to aforementioned claim, wherein, first element is moving element, for example, be open, and And second element be retaining element, such as chassis.