EP0628682A1 - Serrure de porte de véhicule automobile - Google Patents

Serrure de porte de véhicule automobile Download PDF

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Publication number
EP0628682A1
EP0628682A1 EP94201463A EP94201463A EP0628682A1 EP 0628682 A1 EP0628682 A1 EP 0628682A1 EP 94201463 A EP94201463 A EP 94201463A EP 94201463 A EP94201463 A EP 94201463A EP 0628682 A1 EP0628682 A1 EP 0628682A1
Authority
EP
European Patent Office
Prior art keywords
forked element
door latch
face
coating
vehicle door
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.)
Withdrawn
Application number
EP94201463A
Other languages
German (de)
English (en)
Inventor
Frank Joseph Arabia
Thomas Adam Dzurko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of EP0628682A1 publication Critical patent/EP0628682A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • E05B77/40—Lock elements covered by silencing layers, e.g. coatings

Definitions

  • This invention relates to a vehicle door latch.
  • the door latch includes a pivotally mounted forked element which includes a slot opening towards the pin when the latch is in an open position.
  • the pin slides into the slot and rotates the forked element to a latched position in which the pin is captured in the slot of the forked element.
  • a detent member provided on the latch is also pivoted on the latch housing and engages an engagement face of the forked element to latch the forked element in the closed position.
  • the present invention seeks to provide an improved vehicle door latch.
  • a vehicle door latch as specified in claim 1.
  • the forked element of a door latch is encapsulated in an elastomeric coating, moulded in situ thereon, and covering the face of the forked element engaged by the detent member so that the elastomeric coating quietens the latching engagement of the detent member with the forked element.
  • the elastomeric coating is an inelastic, internally lubricated reinforced plastics material which wears progressively as the door latch is repeatedly latched and unlatched. The elastomeric coating is sacrificed and, towards the end of the lifetime of the vehicle, it eventually wears away so that the latching engagement reverts, over the lifetime of the door latch, to a direct metal to metal engagement of the detent with the engagement face of the forked element.
  • a vehicle door latch assembly 10 includes a housing 12 (shown in phantom) suitably bolted onto the end panel of a vehicle door.
  • the door latch 10 includes a forked element 14 mounted to the housing 12 on a pivot 16.
  • a detent member 18 for latching the forked element 14 is mounted on the housing 12 by a pivot 22.
  • Figure 1 shows the door latch in the latched position in which a pin 26, carried by a vehicle body mounted pin assembly 28, has been captured within a recess 30 of the forked element 14.
  • the forked element 14 is retained in the latched position by the engagement of a detent face 34 of detent member 18 with an engagement face 36 of forked element 14.
  • Figure 1 also shows in phantom the unlatched position of the forked element 14. It should be appreciated that during closing movement of the vehicle door, the forked element 14 will be carried into engagement with the pin 26, thereby causing the forked element 14 to rotate in the counterclockwise direction from the phantom position of Figure 1, so that the detent member 18 rides along peripheral surfaces 40 and 42 of the forked element 14. This engagement of the detent member against the peripheral surfaces 40 and 42 is assured by the urging of a spring, not shown, which acts between the detent member 18 and the housing 12.
  • the forked element 14 includes a metal core 38 encapsulated in an ejection moulded thermoplastics coating 39.
  • this coating 39 covers both the front face 44 and rear face 46 of the forked element 14.
  • the elastomeric coating 39 completely surrounds the periphery of the metal core 38 except at the tip 48 on the one side of recess 30 and the opposite tip 50 on the other side of the recess 30.
  • thermoplastic coating is moulded in situ onto the metal core 38 by mounting the core 38 in a plastics injection mould.
  • the core 38 is positioned in the mould by gripping the core 38 through the pivot opening 54 and gripping the tip 48.
  • the elastomeric coating 39 is an internally lubricated and reinforced thermoplastics material, such as the polyester elastomer manufactured and sold by LNP Engineering Plastics of Exton, PA, under the designation "YL-4530". This type of thermoplastics coating is relatively inelastic under high load conditions, and experiences a low rate of wear under friction against the metallic detent member 18.
  • the elastomeric coating 39 becomes thicker from the core 38 intermediate the recess 30 and top 50 to form an elevated abutment face 58 for engagement by the detent member 18, as shown in Figure 1.
  • the peripheral face of core 38 intermediate the tip 50 and abutment face 58 is free of thermoplastic coating to form an uncoated metal face 62.
  • the engagement face 36 which registers and overlaps with the detent member 18 includes the uncoated metal face 62 arranged side by side adjacent the elevated elastomeric abutment face 58.
  • the door is unlatched by rotating the detent member 18 in a clockwise direction (as shown in Figure 1) to withdraw the detent face 34 from its engagement with the thermoplastics abutment face 58.
  • the latched element is latched and unlatched many thousands of times. During this time, the plastics abutment face 58 will progressively wear away as it frictionally engages and disengages from the metal detent member 18.
  • Figure 2 shows the door latch after the plastics abutment face 58 has been abraded to such an extent that the detent face 34 contacts the uncoated metal face 62 of the forked element 14.
  • This reversion of the door latch to conventional metal to metal contact will increase the noise level associated with closing of the vehicle door.
  • wear of the plastics abutment face 58 will occur over a substantial number of years, so that a relatively noisier operation of the door latch will only occur at the latter portion of the vehicle's lifetime.

Landscapes

  • Lock And Its Accessories (AREA)
EP94201463A 1993-06-14 1994-05-24 Serrure de porte de véhicule automobile Withdrawn EP0628682A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7590193A 1993-06-14 1993-06-14
US75901 1993-06-14

Publications (1)

Publication Number Publication Date
EP0628682A1 true EP0628682A1 (fr) 1994-12-14

Family

ID=22128666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94201463A Withdrawn EP0628682A1 (fr) 1993-06-14 1994-05-24 Serrure de porte de véhicule automobile

Country Status (3)

Country Link
EP (1) EP0628682A1 (fr)
KR (1) KR950001055A (fr)
CN (1) CN1106889A (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10216313A1 (de) * 2002-04-12 2003-10-23 Bayerische Motoren Werke Ag Drehfalle eines Schlosses mit einer Dämpfungsschicht
WO2004101929A2 (fr) * 2003-05-08 2004-11-25 Kiekert Aktiengesellschaft Fermeture de porte de vehicule
WO2008046409A1 (fr) * 2006-10-21 2008-04-24 Kiekert Aktiengesellschaft Serrure de portière d'un véhicule à moteur
DE102011084960A1 (de) * 2011-10-21 2013-04-25 Kiekert Ag Kraftfahrzeugschloss mit selbstständiger Rückfettung
GB2501804A (en) * 2012-04-11 2013-11-06 Mitsui Kinzoku Act Corp Vehicle latch device with resin buffer to reduce latching sound
EP1867808B2 (fr) † 2006-06-06 2015-03-11 Brose Schliesssysteme GmbH & Co. KG Serrure de véhicule automobile
US9617766B2 (en) 2013-09-13 2017-04-11 International Business Machines Corporation Component and low profile flexible latch assembly
DE102016108416A1 (de) * 2016-05-06 2017-11-09 Kiekert Ag Kraftfahrzeugtürschloss
WO2020108695A1 (fr) * 2018-11-30 2020-06-04 Kiekert Ag Serrure de véhicule automobile
US20220235587A1 (en) * 2018-06-13 2022-07-28 Kiekert Ag Motor-vehicle door lock

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050032210A (ko) * 2003-10-01 2005-04-07 기아자동차주식회사 차량용 도어 래치 구조
DE102004040157B3 (de) * 2004-08-19 2006-07-13 Huf Hülsbeck & Fürst Gmbh & Co. Kg Schloss für Türen oder Klappen an Fahrzeugen
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
JP4734212B2 (ja) * 2006-10-17 2011-07-27 三井金属アクト株式会社 ラッチ装置
JP4444318B2 (ja) * 2007-08-09 2010-03-31 三井金属鉱業株式会社 車両用ラッチ装置
DE202012007326U1 (de) * 2012-07-31 2013-11-04 Kiekert Aktiengesellschaft Kraftfahrzeugtürschloss
CN110409934B (zh) * 2018-04-28 2021-09-24 开开特股份公司 汽车门锁

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233506A2 (fr) * 1986-02-21 1987-08-26 Audi Ag Fermeture de porte de véhicule à moteur
DE3721023A1 (de) * 1986-06-28 1988-01-07 Aisin Seiki Tuerverschluss fuer ein kraftfahrzeug
US4756564A (en) * 1986-12-19 1988-07-12 Kabushikikaisha Anseikogyo Vehicle door latch
US4896908A (en) * 1987-12-02 1990-01-30 Kiekert Gmbh & Co. Kommanditgesellschaft Elastomer-clad motor-vehicle door latch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233506A2 (fr) * 1986-02-21 1987-08-26 Audi Ag Fermeture de porte de véhicule à moteur
DE3721023A1 (de) * 1986-06-28 1988-01-07 Aisin Seiki Tuerverschluss fuer ein kraftfahrzeug
US4756564A (en) * 1986-12-19 1988-07-12 Kabushikikaisha Anseikogyo Vehicle door latch
US4896908A (en) * 1987-12-02 1990-01-30 Kiekert Gmbh & Co. Kommanditgesellschaft Elastomer-clad motor-vehicle door latch

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10216313A1 (de) * 2002-04-12 2003-10-23 Bayerische Motoren Werke Ag Drehfalle eines Schlosses mit einer Dämpfungsschicht
US7789440B2 (en) 2003-05-08 2010-09-07 Kiekert Ag Motor vehicle door lock
WO2004101929A2 (fr) * 2003-05-08 2004-11-25 Kiekert Aktiengesellschaft Fermeture de porte de vehicule
WO2004101929A3 (fr) * 2003-05-08 2005-01-06 Kiekert Ag Fermeture de porte de vehicule
EP1867808B2 (fr) † 2006-06-06 2015-03-11 Brose Schliesssysteme GmbH & Co. KG Serrure de véhicule automobile
WO2008046409A1 (fr) * 2006-10-21 2008-04-24 Kiekert Aktiengesellschaft Serrure de portière d'un véhicule à moteur
DE102011084960A1 (de) * 2011-10-21 2013-04-25 Kiekert Ag Kraftfahrzeugschloss mit selbstständiger Rückfettung
GB2501804A (en) * 2012-04-11 2013-11-06 Mitsui Kinzoku Act Corp Vehicle latch device with resin buffer to reduce latching sound
US8888150B2 (en) 2012-04-11 2014-11-18 Mitsui Kinzoku Act Corporation Latch device for vehicle
GB2501804B (en) * 2012-04-11 2015-06-03 Mitsui Kinzoku Act Corp Latch device for vehicle
US9617766B2 (en) 2013-09-13 2017-04-11 International Business Machines Corporation Component and low profile flexible latch assembly
US9896867B2 (en) 2013-09-13 2018-02-20 International Business Machines Corporation Component and low profile flexible latch assembly
US10053894B2 (en) 2013-09-13 2018-08-21 International Business Machines Corporation Component and low profile flexible latch assembly
DE102016108416A1 (de) * 2016-05-06 2017-11-09 Kiekert Ag Kraftfahrzeugtürschloss
US20220235587A1 (en) * 2018-06-13 2022-07-28 Kiekert Ag Motor-vehicle door lock
US11802424B2 (en) * 2018-06-13 2023-10-31 Kiekert Ag Motor-vehicle door lock
WO2020108695A1 (fr) * 2018-11-30 2020-06-04 Kiekert Ag Serrure de véhicule automobile

Also Published As

Publication number Publication date
CN1106889A (zh) 1995-08-16
KR950001055A (ko) 1995-01-03

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