WO2009115137A1 - Procede de fabrication d'un cliquet pivotant pour serrure d'ouvrant de vehicule automobile, cliquet pivotant et serrure correspondante - Google Patents
Procede de fabrication d'un cliquet pivotant pour serrure d'ouvrant de vehicule automobile, cliquet pivotant et serrure correspondante Download PDFInfo
- Publication number
- WO2009115137A1 WO2009115137A1 PCT/EP2008/060163 EP2008060163W WO2009115137A1 WO 2009115137 A1 WO2009115137 A1 WO 2009115137A1 EP 2008060163 W EP2008060163 W EP 2008060163W WO 2009115137 A1 WO2009115137 A1 WO 2009115137A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lock
- pivoting
- ratchet
- axis
- bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/0004—Lock assembling or manufacturing
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B77/00—Vehicle locks characterised by special functions or purposes
- E05B77/36—Noise prevention; Anti-rattling means
- E05B77/38—Cushion elements, elastic guiding elements or holding elements, e.g. for cushioning or damping the impact of the bolt against the striker during closing of the wing
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
- E05B85/20—Bolts or detents
- E05B85/24—Bolts rotating about an axis
- E05B85/26—Cooperation between bolts and detents
Definitions
- the present invention relates to a method of manufacturing a pivoting ratchet for a motor vehicle door lock, a corresponding pivoting ratchet and a lock for a corresponding motor vehicle door, in particular for a door, a tailgate, a tailgate bezel or the trunk of a motor vehicle.
- Conventional locks comprise a pivoting bolt intended to cooperate with a striker and a ratchet pivoting about an axis of rotation between an open position and a closed position of the lock.
- the pawl has a retaining end intended to cooperate with the bolt to retain it and prevent its rotation in the closed position of the lock.
- a known manufacturing process is to first cut a piece of steel, and to add an axis of rotation that comes to river on a support plate.
- another manufacturing method used consists of first cutting a steel sheet, then stamping the cut sheet so as to form a pawl having an axis of rotation and an end of retainers formed from a single piece.
- Some known manufacturing processes comprise an additional manufacturing step during which part of the stamped cut piece thus obtained is overmolded with resin, so as to reduce the noise resulting from impacts between the pawl and the bolt during operation of the lock.
- Such a manufacturing method is for example described in US 4, 856, 829.
- these manufacturing processes have drawbacks.
- a ratchet retaining end having a rounded shape.
- the manufacturing process must include an additional step during which the cutting edge is machined or struck, so as to obtain the radius of the rounding.
- the pawls resulting from these manufacturing processes may cause bolt escape problems by matting the surface of the retaining end.
- the present invention aims to remedy these problems by providing a method of manufacturing an improved pivoting ratchet, to reduce the operating noise at a low cost of implementation.
- the subject of the invention is a method of manufacturing a pivoting pawl for a motor vehicle door lock comprising a rotary bolt, intended to cooperate with a striker, between an open position and a closed position of said lock.
- the pivoting pawl having an axis of rotation and a retaining end pivotable about said axis and intended to cooperate with said bolt to hold said bolt in a closed position of said lock, characterized in that it comprises a first step in which forming a metal pawl insert having the axis of rotation and the retaining end of the pivoting pawl, by cold stamping and a second step, wherein is partially overmolded said insert with a resin.
- the method according to the invention can comprise one or more of the following characteristics: in the first step, the rounded retaining end is formed by cold forging, in the first step a groove is formed in the retaining end by cold stamping or machining or any other means of obtaining and in the second step, overmoulding the groove obtained with a resin, - in the second step, partially overmolding the retaining end of the pivoting ratchet with a resin, in the second step, overmolding at least one bearing of the axis of the metal ratchet insert with a resin.
- the invention also relates to a pivoting ratchet for a motor vehicle door lock comprising a rotary bolt intended to cooperate with a strike between an open position and a closed position of said lock, said pawl having an axis of rotation and a retaining end pivotable about said axis and intended to cooperate with the rotary bolt to hold said bolt in the closed position of the lock, characterized in what is obtained by the method of manufacturing a pivoting ratchet for a motor vehicle door lock, as previously described.
- the invention also relates to a lock for a motor vehicle opening comprising a rotary bolt, intended to cooperate with a keeper between an open position and a closed position of said lock, a pivoting ratchet having an axis of rotation and a retaining end pivotable about said axis and intended to cooperate with the bolt to maintain said bolt in the closed position of the lock, characterized in that the pivoting pawl is obtained by the method of manufacturing a pivoting ratchet for a vehicle door lock automobile, as previously described.
- FIG. 1 is a perspective view of a pivoting ratchet according to the invention
- - Figure 3 is a flowchart illustrating a manufacturing method according to the invention.
- the invention applies to a motor vehicle door lock, in particular for a door, a tailgate, a tailgate bezel or a trunk of a motor vehicle.
- the lock (not shown) comprises a rotary bolt, intended to cooperate with a keeper between an open position and a closed position of the lock and a pivoting pawl.
- Figure 1 shows a pivoting pawl 1 according to the invention.
- the pivoting pawl 1 comprises an axis of rotation 3 and a retaining end 5 that can pivot about the axis 3 and intended to cooperate with the bolt to hold the bolt in the closed position of the lock.
- the axis of rotation 3 has two rotational bearings 7 and 8.
- the pivoting pawl 1 is obtained by a manufacturing method 100 of a pivoting ratchet for a motor vehicle door lock.
- the different steps of the manufacturing method 100 are illustrated in FIG. 3.
- the method 100 comprises a first step 101 in which a metal pawl insert 9 (FIG. 2) is formed comprising the axis of rotation 3 and the retaining end 5. pivoting pawl 1, by cold stamping.
- Cold forging is a forging operation performed using matrices (upper half-matrix and lower half-matrix), hollow-bearing the shape of the workpiece and making it possible to form a workpiece by plastic deformation of a metal blank .
- matrices upper half-matrix and lower half-matrix
- some cold forming operations require a deburring operation by machining or other means.
- the method 100 comprises a second step 102, in which the insert 9 is partially overmolded by means of a resin 11, for example synthetic resin.
- the contact areas obtained between the retaining end 5 and the bolt have a greater thickness than those obtained, for example by stamping, which ensures the retention of the bolt, especially in case of heavy load.
- the retaining end 5 is formed by rounding by cold stamping in the first step 101, in order to realize contact areas for which the cooperation between the pawl 1 and the bolt is facilitated (see Figure 2).
- the second step 102 Preferably in the second step 102, partially overmolding the retaining end 5 of the pivoting pawl 1, which limits the noise resulting from the contact between the retaining end of the pawl 5 and the bolt.
- a groove 13 is formed in the retaining end 5 by cold stamping or by machining or other means (FIG. 2) and in the second step 102, the groove 13 is overmolded while leaving surfaces metal contact 15 without resin 11 ( Figure 1).
- the groove 13 is preferably formed on the edge of the retaining end 5, through the retaining end 5 in the length and is advantageously extended on either side of the sides of the end 5.
- At least one bearing 7, 8 of the axis 3 of the metal pawl insert 9 is overmolded in order to reduce the frictional resistance during the rotation of the pawl 1.
- Areas 17 without resin 11 are advantageously provided on the axis 3 so as to leave gripping zones for the assembly of the pawl 1 in the lock.
- Such a manufacturing method makes it possible to obtain a compact, reliable, robust pivoting ratchet 1, with a reduced sound level in operation, for which the contact zones are made in such a way as to facilitate the cooperation between the bolt and the ratchet while being at a low manufacturing cost.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Lock And Its Accessories (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08786781A EP2268879B1 (fr) | 2008-03-21 | 2008-08-01 | Procede de fabrication d'un cliquet pivotant pour serrure d'ouvrant de vehicule automobile |
| BRPI0822452A BRPI0822452B1 (pt) | 2008-03-21 | 2008-08-01 | método de produção de uma lingueta giratória para a trava de uma folha de abertura de veículo motorizado, lingueta giratória e trava correspondente |
| CN2008801293799A CN102046907A (zh) | 2008-03-21 | 2008-08-01 | 用于机动车门扇的锁的枢转棘爪的制造方法,枢转棘爪和相应的锁 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0801571A FR2928954B1 (fr) | 2008-03-21 | 2008-03-21 | Procede de fabrication d'un cliquet pivotant pour serrure d'ouvrant de vehicule automobile, cliquet pivotant et serrure correspondante |
| FR0801571 | 2008-03-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009115137A1 true WO2009115137A1 (fr) | 2009-09-24 |
Family
ID=40010757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2008/060163 Ceased WO2009115137A1 (fr) | 2008-03-21 | 2008-08-01 | Procede de fabrication d'un cliquet pivotant pour serrure d'ouvrant de vehicule automobile, cliquet pivotant et serrure correspondante |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2268879B1 (fr) |
| CN (2) | CN102046907A (fr) |
| BR (1) | BRPI0822452B1 (fr) |
| FR (1) | FR2928954B1 (fr) |
| WO (1) | WO2009115137A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107657705B (zh) * | 2017-10-27 | 2023-11-17 | 岭南师范学院 | 一种用于公共租赁单车的智能锁结构 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4756564A (en) * | 1986-12-19 | 1988-07-12 | Kabushikikaisha Anseikogyo | Vehicle door latch |
| US4856829A (en) * | 1987-05-20 | 1989-08-15 | Ohi Seisakusho Co., Ltd. | Pawl structure in a door locking device for a vehicle |
| GB2314586A (en) * | 1996-06-26 | 1998-01-07 | Mitsui Mining & Smelting Co | Impact resistant vehicle door latch |
| DE102004001988A1 (de) * | 2004-01-13 | 2005-08-04 | Kiekert Ag | Lagerdorn für Sperrteile und Kraftfahrzeug-Türschloss mit einem Lagerdorn |
| DE202006009003U1 (de) * | 2006-06-06 | 2007-10-25 | BROSE SCHLIEßSYSTEME GMBH & CO. KG | Kraftfahrzeugschloß |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058068C (zh) * | 1994-11-10 | 2000-11-01 | 三井金属矿业株式会社 | 车辆用门锁装置 |
| KR20050032210A (ko) * | 2003-10-01 | 2005-04-07 | 기아자동차주식회사 | 차량용 도어 래치 구조 |
| EP1813746B1 (fr) * | 2004-11-16 | 2014-04-09 | Aisin Seiki Kabushiki Kaisha | Dispositif de serrure de porte pour véhicule |
| JP4513527B2 (ja) * | 2004-11-25 | 2010-07-28 | 三菱自動車工業株式会社 | ドアラッチ装置 |
| GB0509350D0 (en) * | 2005-05-07 | 2005-06-15 | Arvinmeritor Light Vehicle Sys | Latch |
| JP4851869B2 (ja) * | 2006-07-03 | 2012-01-11 | 三井金属アクト株式会社 | 車両用ドアラッチ装置 |
-
2008
- 2008-03-21 FR FR0801571A patent/FR2928954B1/fr not_active Expired - Fee Related
- 2008-08-01 WO PCT/EP2008/060163 patent/WO2009115137A1/fr not_active Ceased
- 2008-08-01 CN CN2008801293799A patent/CN102046907A/zh active Pending
- 2008-08-01 BR BRPI0822452A patent/BRPI0822452B1/pt not_active IP Right Cessation
- 2008-08-01 CN CN201410584762.0A patent/CN104712200B/zh active Active
- 2008-08-01 EP EP08786781A patent/EP2268879B1/fr active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4756564A (en) * | 1986-12-19 | 1988-07-12 | Kabushikikaisha Anseikogyo | Vehicle door latch |
| US4856829A (en) * | 1987-05-20 | 1989-08-15 | Ohi Seisakusho Co., Ltd. | Pawl structure in a door locking device for a vehicle |
| GB2314586A (en) * | 1996-06-26 | 1998-01-07 | Mitsui Mining & Smelting Co | Impact resistant vehicle door latch |
| DE102004001988A1 (de) * | 2004-01-13 | 2005-08-04 | Kiekert Ag | Lagerdorn für Sperrteile und Kraftfahrzeug-Türschloss mit einem Lagerdorn |
| DE202006009003U1 (de) * | 2006-06-06 | 2007-10-25 | BROSE SCHLIEßSYSTEME GMBH & CO. KG | Kraftfahrzeugschloß |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2268879A1 (fr) | 2011-01-05 |
| CN104712200A (zh) | 2015-06-17 |
| BRPI0822452B1 (pt) | 2018-09-11 |
| CN102046907A (zh) | 2011-05-04 |
| CN104712200B (zh) | 2018-06-08 |
| FR2928954B1 (fr) | 2013-04-12 |
| EP2268879B1 (fr) | 2013-01-09 |
| FR2928954A1 (fr) | 2009-09-25 |
| BRPI0822452A2 (pt) | 2016-07-19 |
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