EP0894926B1 - Lock for a motor vehicle door - Google Patents

Lock for a motor vehicle door Download PDF

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Publication number
EP0894926B1
EP0894926B1 EP19980114303 EP98114303A EP0894926B1 EP 0894926 B1 EP0894926 B1 EP 0894926B1 EP 19980114303 EP19980114303 EP 19980114303 EP 98114303 A EP98114303 A EP 98114303A EP 0894926 B1 EP0894926 B1 EP 0894926B1
Authority
EP
European Patent Office
Prior art keywords
striker
lock
lock according
relatively
relatively yielding
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.)
Expired - Lifetime
Application number
EP19980114303
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0894926A1 (en
Inventor
Franco Giovanni Ottino
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.)
Magna Closures SpA
Original Assignee
Magna Closures SpA
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 Magna Closures SpA filed Critical Magna Closures SpA
Publication of EP0894926A1 publication Critical patent/EP0894926A1/en
Application granted granted Critical
Publication of EP0894926B1 publication Critical patent/EP0894926B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • E05B85/02—Lock casings
    • 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 lock for a motor vehicle door.
  • the lock for a motor vehicle door is generally secured in a rigid manner to the door itself and is arranged to be coupled with a fixed striker integral with an upright of the motor vehicle body shell itself to ensure closure of the door.
  • Locks having a support structure are known at least partly housing a closure mechanism including a fork arranged to cooperate with a portion of the striker and a stop arranged to lock the fork in a releasable manner in an operative closure position on the portion of the striker.
  • the support structure comprises a metal frame arranged to be secured to the door of the motor vehicle and a housing shell for the closure mechanism having a holding housing seat for the portion of the striker in the fork engaging position.
  • the penetration of the portion of the striker into the seat is typically guided by walls vertically demarcating the seat itself, the walls having a converging path towards a base wall defining the resting position of the striker.
  • a number of structural arrangements are used at present mainly based on the use of a buffer, typically made of rubber, placed inside the seat and coupled to the base wall of the said seat.
  • one of the walls demarcating the seat is defined by a flexibly loaded pad, which may be integral or otherwise with the containing shell.
  • the flexible loading may be provided by means of an independent elastic component or defined by a portion of the buffer.
  • DE-A-2 551 288 discloses a motor vehicle doot lock as defined in the preamble of claim 1.
  • the purpose of the present invention is to achieve a lock for a motor vehicle door which allows, in a simple and economical manner, to reduce the noise generated by the coupling of the lock and the striker, and to overcome, at least in part, the drawbacks of the known locks.
  • a lock for a motor vehicle is provided as defined in claim 1.
  • Lock 1 which is not subject-matter of the present invention, is arranged to be rigidly secured to the door (not illustrated) of a motor vehicle (not illustrated) and to be coupled with a fixed striker 2 ( Figures 2 and 3) integral with an upright of the body shell (not illustrated) of the motor vehicle to achieve the closure of the door.
  • the striker 2 comprises as illustrated in Figures 2 and 3, a support structure 4 essentially U-shaped and defined by a first plate component 6 with holes 8 for its securing to the motor vehicle upright, a second plate component 10 facing first plate component 6, and a third plate component 12 connecting the plate components 6, 10 integrally therewith and placed transversely between first end portions 6a, 10a of the said plate components 6, 10.
  • the striker 2 also comprises a matching dowel 14 of essentially cylindrical shape, having a longitudinal axis A, located transversely between two end portions 6b, 10b of the plate components 6, 10 opposing the first end portions 6a, 10a supported at their ends by the plate components 6, 10 and arranged to cooperate with the lock 1 as is described below.
  • the end portion 10b of the second plate component 10 located to correspond with the matching dowel 14 is rounded and defines a head 16 on the striker 2, which has a greater cross section than that of the matching dowel 14.
  • the lock 1 is of modular type and comprises a closure module 20 having engaging components for connecting with the striker 2, and an actuation module 22 for the closure module 20, not described in detail since it is not part of the present invention, provided with lever arrangements controlled from outside by the actuation of the engaging components of the said closure module 20.
  • the closure module 20 comprises, as is also illustrated in Figures 4-6, a box-shaped support structure 24 having a front aperture 26 for the coupling of the closure module 20 with the matching dowel 14 of the striker 1; and a closure mechanism 28 arranged inside the support structure 24 and arranged to be coupled through the front aperture 26, with the matching dowel 14 of the striker 2 along a coupling direction B transversely to the longitudinal axis A of the matching dowel 14 in a manner already known to achieve the closure of the motor vehicle door.
  • the support structure 24 comprises a first and a second metal material plate 30, 32, essentially flat and both placed face to face and parallel, and a housing shell 34 in elastic material relatively yielding interposed between the first and second plate 30, 32 and having internally an opening 36 communicating with the outside through the front aperture 26 and in which is located the closure mechanism 28.
  • a vent 38 (Figs. 1 and 4) is arranged extending to correspond with the front aperture 26 and along the relative coupling direction B to allow the penetration of the matching dowel 14 with the inside of the opening 36 and its coupling with the closure mechanism 28.
  • the closure mechanism 28 comprises as is shown in greater detail in Figure 7, a fork 40 mounted to pivot about a first pin 42, secured integral with the plates 30, 32 and extending in orthogonal manner between the plates 30, 32 inside the aperture 36 of the housing shell 34; and a stop 44 mounted to pivot on a second pin 46 also fixed integral to the plates 30, 32 and extending in orthogonal manner between the said plates 30, 32 inside the aperture 36.
  • the fork 40 has a U-shaped seat 48 arranged to engage the matching dowel 14 of the striker 2, and is normally held by a spring (not illustrated) in an operative opening position, in which the seat 48 is turned towards the front aperture 26 of the support structure 24.
  • the fork 40 moves from the opening position to a closing position on the matching dowel 14 shown in Figure 7, in which the seat 48 is directed towards the inside of the aperture 36 and is held in a releasable manner in such an operative closure position of the stop 44.
  • the container shell 34 comprises a relatively yielding portion 50, demarcating a holding seat 54 for the head 16 of the striker 2 and communicating with the outside through the front aperture 26.
  • the portion 50 is made of one piece with the said shell 34, which consists entirely of relatively soft plastic material, usefully polyurethane resin, or as an alternative an elastomer material, it not being subject to mechanical loads since the loads to which the stop 44 is subjected with the fork 40 are absorbed by the plates 30, 32.
  • the portion 50 of the shell 34 comprises as illustrated in Figures 8-10 a flexible strip component 52 placed inside the aperture 36, made of one piece with the container shell 34 and demarcating the said housing seat 54 for the head 16 of the striker 2.
  • the flexible component 52 is of arcuate form, has a first and a second end 52a, 52b secured integrally to the container shell 34 and comprises a first portion 56 transversely to the direction of relative coupling B and defining a rest surface for the head 16 of the striker 2, and a second portion 58 facing a guiding wall 60 of the container shell 34 demarcating the housing seat 54 in transverse direction in relation to the direction of relative coupling B.
  • first end 52a of the flexible component 52 is integrally secured to the guide wall 60, whilst the second end 52b of the flexible component 52 is integrally to secured to the container shell 34 at the point of front aperture 26.
  • the second portion 58 of the flexible component 52 converges in relation to the guide wall 60 towards the first portion 56 of the said flexible component 52.
  • the first portion 56 of the flexible component 52 in its original condition, is faced towards and spaced from a bottom 62 of the aperture 36 which defines a limiting component for the distortion of the first portion 56 in the direction of relative coupling B, whereas the second portion 58 of the flexible component 52, in its original condition, is facing at a distance from the side surface 64 of the said aperture 36 which defines a limiting component for the distortion of the second portion 58 in transverse direction to the direction of relative coupling B.
  • the housing seat 54 has a portion 63 tapered outwardly for the insertion of the head 16 of the striker 2 placed opposite the front aperture 26.
  • the operation of the lock 1 is a follows.
  • the matching dowel 14 shown in Figure 10 locates inside the housing seat 54 of the container body 34, thus rotating the fork 40 from the opening position shown in Figure 8 to the closed position shown in Figure 9, in which the matching dowel 14 is held steady in housing seat 54.
  • the arrangement of the head 16 of the striker 2 inside the housing seat 54 occurs first of all through the opening in the said head 16 in the insertion portion 63 of the housing seat 54 and thereby through the head 16 slipping between the second portion 58 of flexible component 52 and the guide wall 60 of the container shell 34.
  • Insertion of the head 16 of the striker 2 inside the housing seat 54 ends when the said head 16 bears against the first portion 56 of the flexible component 52, which defines the rest position for the matching dowel 14.
  • the head 16 of the striker 2 slightly distorts the first and the second portion 54, 56 of the flexible component 52; in particular, the first portion 56 of the flexible component 52 approaches the bottom surface 62 of the aperture 36 but does not bear against it, whereas the second portion 58 of the flexible component 52 comes to bear against the side surface 64 of the aperture 36.
  • the first portion 58 of the flexible component 52 exerts upon the head 16 of the striker 2, jointly with the rigid guide wall 60, a locking action for the said head 16 inside the housing seat 54 which thereby prevents the movement of the door in a transverse direction to the direction of relative coupling B, or prevents the vertical movement of the door.
  • FIG 11 a lock 1' is illustrated in accordance with this invention, which is described hereinafter exclusively insofar as it differs from lock 1 and using the same reference numbers to identify equal or similar parts already described.
  • the lock 1' comprises a container shell 34 made of essentially rigid plastic material, in which portion 50 in this case as a separate component is force-fitted.
  • the portion 50 comprises two flexible strip components 56, 58, corresponding in function and position with portions 56, 58 of flexible component 52 of lock 1.
  • Each of these flexible strip components 56, 58 is integrally secured to the portion 50 at the relevant ends.
  • housing seat 54 for receiving striker 2 is completely defined by portion 50.
  • the portion 50 comprises in addition integrally a dust excluding lip 65 extending integrally from portion 50 around the aperture 26, along the upper and lower sides and the side turned towards the plate 32.
  • the lip 65 is arranged to be elastically compressed against the door, in service, to limit the ingress of foreign matter into the said door through the ingress aperture of the striker.
  • the use of a single portion 50 in flexibly yielding material demarcating the seat 54 allows the attenuation of the noise generated by the impact of the head 16 of the striker 2 and the guidance of the insertion of striker in a most efficient manner; the assembly cycle for the lock 1 becomes notably simplified in relation to that of known locks and consequently manufacturing costs for the lock 1 prove greatly reduced.

Landscapes

  • Lock And Its Accessories (AREA)
EP19980114303 1997-07-31 1998-07-30 Lock for a motor vehicle door Expired - Lifetime EP0894926B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO970695 1997-07-31
IT97TO000695 IT1296292B1 (it) 1997-07-31 1997-07-31 Serratura per una porta di un autoveicolo con un elemento elastico di arresto per uno scontrino.

Publications (2)

Publication Number Publication Date
EP0894926A1 EP0894926A1 (en) 1999-02-03
EP0894926B1 true EP0894926B1 (en) 2004-06-16

Family

ID=11415917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980114303 Expired - Lifetime EP0894926B1 (en) 1997-07-31 1998-07-30 Lock for a motor vehicle door

Country Status (6)

Country Link
EP (1) EP0894926B1 (pt)
BR (1) BR9806635A (pt)
DE (1) DE69824495T2 (pt)
ES (1) ES2219814T3 (pt)
IT (1) IT1296292B1 (pt)
PL (1) PL327783A1 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2782741B1 (fr) * 1998-08-27 2000-10-13 Valeo Securite Habitacle Serrure a boitier en matiere plastique
DE102008064838B3 (de) 2008-07-11 2022-11-10 Keiper Seating Mechanisms Co., Ltd. Verriegelungsvorrichtung für einen Fahrzeugsitz
DE102008033304B4 (de) 2008-07-11 2018-01-04 Adient Luxembourg Holding S.à.r.l. Verriegelungsvorrichtung für einen Fahrzeugsitz und Fahrzeugsitz
DE102008033305B4 (de) 2008-07-11 2019-06-27 Adient Luxembourg Holding S.À R.L. Verriegelungsvorrichtung für einen Fahrzeugsitz und Fahrzeugsitz
DE102008033303B4 (de) 2008-07-11 2015-08-20 Johnson Controls Components Gmbh & Co. Kg Verriegelungsvorrichtung für einen Fahrzeugsitz
DE202012103608U1 (de) 2012-09-20 2012-10-24 Kiekert Aktiengesellschaft Kraftfahrzeugtürschloss
DE102014114930A1 (de) * 2014-10-15 2016-04-21 Kiekert Ag Kraftfahrzeugtürschloss sowie zugehöriges Verfahren zur Herstellung eines solchen Kraftfahrzeugtürschlosses
US20190359090A1 (en) 2018-05-22 2019-11-28 Kiekert Ag Latching device for automotive applications
JP7492838B2 (ja) 2020-02-28 2024-05-30 株式会社城南製作所 車両用リッドロック装置
JP7437190B2 (ja) 2020-02-28 2024-02-22 株式会社城南製作所 車両用リッドロック装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2175434A5 (pt) * 1972-03-08 1973-10-19 Kiekert Soehne Arn
DE2345896C3 (de) * 1973-09-12 1980-12-18 Tack & Gabel, 5600 Wuppertal Kraftfahrzeugtfirverschluß mit Gabelfalle
GB1498024A (en) * 1974-11-14 1978-01-18 Gen Motors Ltd Motor vehicle door latch
DE3221049C2 (de) * 1982-06-04 1985-05-15 Tack & Gabel GmbH & Co KG, 5600 Wuppertal Kraftfahrzeug- Türverschluß
FR2539793B1 (fr) * 1983-01-21 1988-09-23 Mecanismes Comp Ind De Boitier de serrure, destine notamment aux portes de vehicules automobiles
US4679836A (en) * 1986-03-21 1987-07-14 General Motors Corporation Closure latch
DE8806550U1 (pt) * 1988-05-19 1988-07-14 Bomoro Bocklenberg & Motte Gmbh & Co Kg, 5600 Wuppertal, De
GB2226849A (en) * 1989-01-06 1990-07-11 Bocklenberg & Motte Bomoro Sound damping vehicle latches

Also Published As

Publication number Publication date
ES2219814T3 (es) 2004-12-01
DE69824495D1 (de) 2004-07-22
BR9806635A (pt) 2000-04-25
ITTO970695A1 (it) 1999-01-31
IT1296292B1 (it) 1999-06-21
EP0894926A1 (en) 1999-02-03
DE69824495T2 (de) 2004-11-04
PL327783A1 (en) 1999-02-01

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