EP1067261A1 - Verriegelungsvorrichtung - Google Patents

Verriegelungsvorrichtung Download PDF

Info

Publication number
EP1067261A1
EP1067261A1 EP00305753A EP00305753A EP1067261A1 EP 1067261 A1 EP1067261 A1 EP 1067261A1 EP 00305753 A EP00305753 A EP 00305753A EP 00305753 A EP00305753 A EP 00305753A EP 1067261 A1 EP1067261 A1 EP 1067261A1
Authority
EP
European Patent Office
Prior art keywords
pawl
latch
latch bolt
latch mechanism
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.)
Withdrawn
Application number
EP00305753A
Other languages
English (en)
French (fr)
Inventor
Richard Watson
Sydney Edward Fisher
Gurbinder Singh Kalsi
Nigel Victor Spurr
Andrew John Fairey
Axel Fauveau
Gregory Keyes
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.)
ArvinMeritor Light Vehicle Systems UK Ltd
Original Assignee
Meritor Light Vehicle Systems UK Ltd
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 Meritor Light Vehicle Systems UK Ltd filed Critical Meritor Light Vehicle Systems UK Ltd
Publication of EP1067261A1 publication Critical patent/EP1067261A1/de
Withdrawn legal-status Critical Current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
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/02—Vehicle locks characterised by special functions or purposes for accident situations
    • E05B77/10—Allowing opening in case of deformed bodywork, e.g. by preventing deformation of lock parts

Definitions

  • the present invention relates to latch assemblies and in particular latch assemblies for releasably securing vehicle doors such as car doors in a closed position.
  • a latch mechanism having a latch bolt for releaseably securing a striker in a closed position, the latch bolt being movably mounted on a chassis of the latch mechanism, and a pawl movably mounted on the chassis and engaging the latch bolt to releaseably secure it in a closed position, the latch mechanism further including at least one limit abutment for retaining the pawl in engagement with the latch bolt following abnormal application of load to the latch mechanism.
  • Components of the second, third, fourth, fifth and sixth embodiments which fulfil the same function as these shown in the first embodiment are generally labelled 200, 300, 400, 500, and 600 greater than those of the first embodiment
  • a latch mechanism 110 which includes a pawl 12, a latch bolt in the form of a claw 14 and a retention plate 16.
  • Pawl 12 is pivotally mounted via pivot 20 which is connected to the retention plate 16.
  • the pawl includes a pawl engagement portion 22.
  • the retention plate in conjunction with further components (not shown) which do not move relative to the retetion plate during use, from a chassis of the latch mechanism.
  • the claw 14 is pivotally mounted on claw pivot 24 which is secured to the retention plate 16.
  • the claw includes a claw jaw 26 and a claw closed engagement portion 28 and a claw first safety engagement portion 30.
  • the retention plate 16 includes a mouth 32.
  • the claw jaw 26 releaseably secures a striker 19 in mouth 32 of the retention plate.
  • the claw can be secured in its closed position, as shown in Figure 1 by the pawl and in particular by abutment of the pawl engagement portion 22 with the claw closed engagement portion.
  • the claw can also secure the striker in a first safety position (not shown) wherein pawl engagement portion 22 engages claw first safety engagement portion 30. Typically this position equates to a vehicle passenger door which is not fully shut.
  • Known release means allow pawl 12 to be rotated anti clockwise when viewing Figure 1 to disengage the pawl engagement portion 22 from the claw closed engagement portion 28 or claw first safety engagement portion 30 as the case may be, to allow the claw 14 to rotate in an anti clockwise direction thus releasing the striker 19 from the mouth 32.
  • the retention plate 16 further includes a limit abutment in the form of tab 136 which under normal operating conditions is not contacted by the pawl or the claw.
  • the pawl and claw are substantially planar having respective first planar sides 12A and 14A and second planar sides 12B and 14B.
  • the retention plate 116 substantially lies on the first side 12A and 14A of the pawl and claw whilst the tab 136 lies on the second side 12B and 14B of the pawl and claw.
  • the retention plate 116 Under abnormal conditions such as when the latch mechanism is secured in a door of a vehicle and the door receives a side impact during a road traffic accident, the retention plate 116 can be distorted resulting in the pivot axis 12C and 14C becoming misaligned. This in turn could result in the pawl engagement portion 22 becoming misaligned with the claw closed engagement portion 28, allowing the door to open, where it not for the limit abutment.
  • the limit abutment 136 thus limits the amount by which the pawl engagement portion 22 can become misaligned with the claw closed engagement portion 28, and in particular is designed such that these engagement portions cannot become fully misaligned ensuring that the claw cannot open.
  • a latch mechanism 210 which includes a different form of limit abutment, namely an edge 242 of a slot 240 formed in a tab 238 of retention plate 216.
  • portions of the pawl and claw project through the slot and in particular a part of the pawl engagement portion and claw closed engagement portion lies between edge 242 and edge 243 of slot 240.
  • FIG. 4 and 4A there is shown a latch mechanism 310 in which there are two limit abutments are in the form of a tab 344 and a further tab 346.
  • tab 344 would be contacted by pawl 12 in the event of abnormal loads being applied to the latch mechanism 310 and tab 346 would be contacted by claw 14 under the same circumstances. It should be noted that it is not possible for claw 14 to contact tab 344 and similarly it is not possible for pawl 12 to contact tab 346.
  • a latch mechanism 410 in which the limit abutment is in the form of a shoulder 450 of a rivet 448, the rivet being secured to the retention plate 416.
  • the shoulder 450 can be engaged by both the pawl and claw in the event of abnormal load being applied to a latch mechanism 410 and in particular part of the pawl engagement portion and claw closed engagement portion is obscured in Figure 5 thus demonstrating that these portions lie between the shoulder 450 and a part of the retention plate 416.
  • a latch mechanism 510 in which claw 514 includes a limit abutment in the form of a first projection 552 which lies adjacent surface 512B.
  • First projection 552 is proximal the claw closed engagement portion 528 and in particular the edge 554 is common to both the claw closed engagement portion 528 and first projection 552.
  • Pawl 512 also has a limit abutment in the form of a first projection 556 having an edge 558 which is also common to pawl engagement portion 522.
  • a latch mechanism 610 in which the pawl 612 has a projection 652 having an edge common with pawl engagement portion 622 and a further projection 660 having an edge 662 which is common with pawl engagement portion 622.
  • twisting of pawl 612 and or claw 614 in a clockwise or anti clockwise direction is limited by either projection 652 or further projection 660.
  • a further embodiments a claw could have a projection and further projection that lie on opposite sides of an engaging pawl.

Landscapes

  • Lock And Its Accessories (AREA)
EP00305753A 1999-07-07 2000-07-07 Verriegelungsvorrichtung Withdrawn EP1067261A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9915764A GB9915764D0 (en) 1999-07-07 1999-07-07 Latch mechanism
GB9915764 1999-07-07

Publications (1)

Publication Number Publication Date
EP1067261A1 true EP1067261A1 (de) 2001-01-10

Family

ID=10856710

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00305753A Withdrawn EP1067261A1 (de) 1999-07-07 2000-07-07 Verriegelungsvorrichtung

Country Status (2)

Country Link
EP (1) EP1067261A1 (de)
GB (1) GB9915764D0 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008023490A1 (de) * 2008-05-14 2009-11-19 GM Global Technology Operations, Inc., Detroit Schloss einer Hauber eines Kraftfahrzeuges
WO2014019851A3 (de) * 2012-08-03 2014-03-27 Huf Hülsbeck & Fürst Gmbh & Co. Kg Kraftfahrzeugtürverschluss
DE102010026074B4 (de) * 2009-07-08 2015-02-19 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Verriegelungsanordnung
EP3012392A1 (de) * 2014-10-20 2016-04-27 Brose Schliesssysteme GmbH & Co. KG Sperrwerk für eine kraftfahrzeugkomponente
WO2023246969A1 (de) * 2022-06-22 2023-12-28 Kiekert Aktiengesellschaft KRAFTFAHRZEUG-SCHLIEßEINRICHTUNG

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1594900A (de) * 1967-11-27 1970-06-08
GB2197682A (en) * 1986-11-18 1988-05-25 Ohi Seisakusho Co Ltd Latch for a vehicle
DE3839568A1 (de) * 1988-11-24 1990-05-31 Witte & Co Ewald Verschluss fuer tueren, klappen oder dergleichen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1594900A (de) * 1967-11-27 1970-06-08
GB2197682A (en) * 1986-11-18 1988-05-25 Ohi Seisakusho Co Ltd Latch for a vehicle
DE3839568A1 (de) * 1988-11-24 1990-05-31 Witte & Co Ewald Verschluss fuer tueren, klappen oder dergleichen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008023490A1 (de) * 2008-05-14 2009-11-19 GM Global Technology Operations, Inc., Detroit Schloss einer Hauber eines Kraftfahrzeuges
US9085922B2 (en) 2008-05-14 2015-07-21 Gm Global Technology Operations Lock of a hood of a motor vehicle
DE102010026074B4 (de) * 2009-07-08 2015-02-19 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Verriegelungsanordnung
WO2014019851A3 (de) * 2012-08-03 2014-03-27 Huf Hülsbeck & Fürst Gmbh & Co. Kg Kraftfahrzeugtürverschluss
EP3012392A1 (de) * 2014-10-20 2016-04-27 Brose Schliesssysteme GmbH & Co. KG Sperrwerk für eine kraftfahrzeugkomponente
WO2023246969A1 (de) * 2022-06-22 2023-12-28 Kiekert Aktiengesellschaft KRAFTFAHRZEUG-SCHLIEßEINRICHTUNG

Also Published As

Publication number Publication date
GB9915764D0 (en) 1999-09-08

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