EP1254295B1 - Dispositif de verrouillage de capot dote d'un second levier de declenchement auto-retractable - Google Patents

Dispositif de verrouillage de capot dote d'un second levier de declenchement auto-retractable Download PDF

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Publication number
EP1254295B1
EP1254295B1 EP01942396A EP01942396A EP1254295B1 EP 1254295 B1 EP1254295 B1 EP 1254295B1 EP 01942396 A EP01942396 A EP 01942396A EP 01942396 A EP01942396 A EP 01942396A EP 1254295 B1 EP1254295 B1 EP 1254295B1
Authority
EP
European Patent Office
Prior art keywords
ratchet
release arm
secondary release
closed condition
plate
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
EP01942396A
Other languages
German (de)
English (en)
Other versions
EP1254295A2 (fr
Inventor
Grzegorz Baniak
Kris Tomaszewski
Dikran Ghorghorian
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 Inc
Original Assignee
Magna Closures Inc
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 Inc filed Critical Magna Closures Inc
Publication of EP1254295A2 publication Critical patent/EP1254295A2/fr
Application granted granted Critical
Publication of EP1254295B1 publication Critical patent/EP1254295B1/fr
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
    • E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/16—Locks for luggage compartments, car boot lids or car bonnets

Definitions

  • This invention relates to a hood latch for a vehicle.
  • this invention relates to a hood latch having a self-retracting secondary arm.
  • Vehicle hood latch systems are well known in the art.
  • a vehicle hood or trunk deck will have a latch for engaging and cinching onto a striker.
  • the latch will have a rotatably mounted ratchet engaging a pawl in a ratchet relation.
  • the ratchet cooperates with a mouth of the housing to pivot between an open and closed condition for receiving, engaging and cinching a keeper of a striker.
  • the pawl retains the ratchet in the closed and cinched conditions.
  • Hood latches are required to have a secondary latching mechanism and a primary latching mechanism.
  • the primary latching mechanism is operably from inside the vehicle, normally under the dashboard.
  • a secondary latching is only operable from the outside.
  • the secondary release lever is accessible only after the primary latching mechanism has been deployed, but is usually in a deployable position even though it is not accessible. In many cases, the location of the arm is difficult to find requiring the operator to probe blindly or bend over to look for the arm.
  • WO-A-9826144 discloses a latch assembly as defined in the preamble of claim 1.
  • a hood latch assembly for a vehicle having a simple mechanism for self presenting a secondary release arm upon releasing of the primary release and which retracts upon secondary release of the hood.
  • hood latch assembly having a retracting secondary release that is retracted independently of the closing of the hood minimizing inertial forces on the secondary release lever.
  • a latch assembly that has a housing having a mouth.
  • a ratchet is pivotally mounted to the housing and is movable to cooperate with the mouth to pivot between an open condition, a primary closed condition and a secondary closed condition for receiving, engaging and cinching a keeper of a striker.
  • the ratchet is biased to the open condition.
  • a pivotally mounted pawl is biased into engagement with the ratchet for releasably retaining the ratchet in the primary closed condition.
  • a secondary release arm is mounted to rotate about a first axis and a second axis.
  • the secondary release arm is rotatable about the first axis between a retracted position and an extended position, and is rotatable about the second axis between an engaging position and a disengaging position.
  • the secondary release arm is biased to the retracted position and biased to the engaging position.
  • the secondary release arm interengages with the ratchet for coupled movement therewith from the primary closed condition to the secondary closed condition effecting movement of the secondary release arm from the retracted position to the extended position upon the pawl being rotated to disengage from the ratchet.
  • the secondary release arm Upon moving the secondary release arm from the engaging position to the disengaging position, the secondary release arm disengages from the ratchet for independent movement enabling the ratchet to rotate from the secondary closed condition to the open condition and back to the primary closed condition.
  • the secondary release arm also rotates from the extended position to the retracted position.
  • a latch assembly having a secondary release arm that includes a plate commonly mounted for pivotal movement therewith.
  • the plate interengaging with a ratchet.
  • the secondary release arm is pivotally mounted in an over center and overlapping relation with the plate, enabling the plate to pivot without causing the secondary release lever to pivot, and coupling the secondary release lever to effect pivoting of the plate.
  • the latch assembly 10 of the present invention generally has a ratchet or ratchet 12 which has a hook 15 and which is rotatable mounted on a pin 14 to pivot between an open condition, a secondary closed condition and a primary closed condition to grip a keeper of a striker.
  • Spring 18 attaches to the ratchet 12 at aperture 17 and to housing 16 to bias ratchet 12 to a release position.
  • Pin 14 extends between housing 16 and back plate 22.
  • Ratchet 12 has a series of detents 24 and 26 corresponding to the open condition and the primary closed condition.
  • Ratchet 12 has a tab or tongue 28. Preferably, the leading edge of the tab 28 is contoured.
  • Ratchet 12 cooperates with the mouth of the housing 16.
  • Pawl 40 is biased to engage ratchet 12 in a ratchet relation.
  • the ratchet 12 cooperates with a mouth of the housing 16 to pivot between the open and primary closed or latched condition for receiving, engaging and cinching a keeper of a striker.
  • the pawl 40 retains the ratchet 12 in the latched condition.
  • Secondary release lever 20 is mounted on a mounting assembly to provide two degrees of movement.
  • Release lever 20 has a U-shaped base that is received between arms of upwardly extending U-shaped pivot mount 30.
  • Pivot 30 is pivotally mounted on flange 21 of housing 16 by pin 23 to rotate about a first axis, providing a side to side movement of the secondary release lever 20 and plate 36.
  • Pivot pin 34 pivotally connects release lever 20 to the mounting assembly about a second axis to provide an up and down movement as will be explained later.
  • the first axis is orthogonal to the second axis.
  • U-shaped pivot mount 30 pivotally receives plate 36.
  • Plate 36 has a U-shaped base that is fitted between the arms of the U-shaped pivot mount 30 and release lever 20.
  • Plate 36 has an aperture 37 that is sized to receive tab 28 of ratchet 12.
  • Plate 36 and secondary release lever 20 has a common pivot.
  • Secondary release lever 20 and plate 36 extend from opposite sides of the common pivot.
  • Secondary release lever 20 extends in an over center and overlapping relation with plate 36 so that plate 36 may pivot independently of the secondary release lever 20, but not vice versa. In other words, plate 36 may pivot without causing release lever 20 to pivot, but pivoting of release lever 20 will cause pivoting of the plate 36.
  • Spring 38 extends between release lever 20 and plate 36 to bias plate 36 to cooperate with release lever 20.
  • Spring 39 extends between the plate 36 and U-shaped mount 30 to bias the plate 36 upwardly for engagement with the ratchet 12.
  • the various elements have tabs for engaging the springs that make up the present invention.
  • the tabs are positioned in a manner well known in the art to provide the requisite biasing as described herein.
  • Release pawl 40 is pivotally mounted on pin 42 that extends between the housing 16 and back plate 22.
  • Spring 44 biases the pawl into engagement with the ratchet 12.
  • Pawl 40 is connected to a release wire 46 in a manner well known in the art.
  • Housing 16 has a semi-tubular channel 48 which houses spring 50 which biases ratchet 12 to the release position.
  • the secondary release arm 20 is in the retracted condition.
  • the ratchet 12 receives a keeper mounted on the hood.
  • a hood closing force will cause the ratchet 12 to rotate against the bias of spring 18 and 50 until release pawl 40 abuts against detent 26, securing the hood in the latched condition.
  • Tab 28 of ratchet 12 will engage plate 36 and will urge the plate 36 to deflect against the bias of spring 38 until tab 28 is received within aperture 37.
  • pawl 40 Upon primary release of the ratchet 12 by retracting cable 46 from inside the vehicle, pawl 40 will rotate releasing ratchet 12 from detent 26. Since ratchet 12 is in engagement with the release lever 20, rotation of the ratchet 12 is a releasing direction will cause the release lever 20 to pivot from the retracted position to the secondary release position until the plate 36 contacts stop 52. In the secondary release position, the release lever 20 will extend forwardly of the latch assembly and thus accessible from the front of the vehicle. Upon urging the release lever in an upward direction, the plate 36 will be urged away from the ratchet 12 until tab 28 disengages from the aperture 37.
  • the bias of spring 18 will rotate the ratchet 12 to the release condition, fully releasing the keeper and allowing the hood to be opened.
  • Detent 24 will abut release pawl 40.
  • the bias of spring 32 will rotate the release lever 20 from the release position back to the retracted position.

Landscapes

  • Lock And Its Accessories (AREA)
  • Superstructure Of Vehicle (AREA)

Claims (7)

  1. Ensemble de verrou (10) comprenant :
    un logement (16) ayant une embouchure ;
    un rochet (12) monté de façon pivotante sur le logement (16) et pouvant se déplacer afin de coopérer avec l'embouchure et pivoter entre une condition ouverte, une condition fermée primaire et une condition fermée secondaire pour recevoir, engager et serrer un cliquet de sûreté de percuteur, le rochet (12) étant contraint vers sur la position ouverte ;
    un cliquet monté de façon pivotante (40) comportant un moyen de contrainte (44) pour contraindre le cliquet (40) en une position d'engagement avec le rochet (12) pour retenir de façon libérable le rochet (12) dans la condition fermée primaire,
    un bras de libération secondaire (20) monté pour tourner au moins autour d'un premier axe (23) entre une position rétractée et une position déployée, ledit bras de libération secondaire (20) étant contraint vers la position rétractée, ledit bras de libération secondaire (20) s'interengageant avec ledit rochet (12) pour un mouvement couplé avec celui-ci de la condition fermée primaire à la condition fermée secondaire effectuant un mouvement dudit bras de libération secondaire (20) de la position rétractée à ladite position déployée lorsque ledit cliquet (40) est tourné pour le désengager dudit rochet (12),
    caractérisé en ce que ledit bras de libération secondaire (20) est monté pour tourner autour d'un deuxième axe (34) entre une position d'engagement et une position de désengagement et est contraint vers la position d'engagement, lors du mouvement dudit bras de libération secondaire (20) de ladite position d'engagement à ladite position de désengagement, ledit bras de libération secondaire (20) se désengageant dudit rochet (12) pour se déplacer indépendamment et permettre audit rochet (12) de tourner de la condition fermée secondaire à la condition ouverte et de retour à la condition fermée primaire, et permettant audit bras de libération secondaire (20) de tourner de la position déployée à la position rétractée.
  2. Ensemble de verrou selon la revendication 1, dans lequel ledit bras de libération secondaire (20) s'interengage avec ledit rochet (12) lorsque ledit rochet (12) revient à ladite condition fermée primaire.
  3. Ensemble de verrou selon la revendication 1, comprenant une monture en forme de U (30) montée de façon pivotante sur ledit logement (16) pour tourner autour dudit premier axe (23), ledit bras de libération secondaire (20) étant monté de façon pivotante sur ladite monture en forme de U (30) pour tourner autour dudit deuxième axe (34).
  4. Ensemble de verrou selon la revendication 2 ou 3, dans lequel ledit bras de libération secondaire (20) comporte une plaque (36) montée de façon commune pour se déplacer de façon pivotante avec celui-ci en rotation autour dudit deuxième axe (34), ladite plaque (36) s'interengageant avec ledit rochet (12), ledit bras de libération secondaire (20) s'engageant avec ladite plaque (36) en une relation décentrée et chevauchante qui permet à ladite plaque (36) de pivoter sans entraîner de pivotement dudit bras de libération secondaire (20), et couplant le bras de libération secondaire (20) pour que celui-ci fasse pivoter la plaque (36).
  5. Ensemble de verrou selon la revendication 4, dans lequel ladite plaque (36) comporte une ouverture (37) et ledit rochet (12) comporte une languette (28) positionnée pour s'interengager avec ladite ouverture (37) quand ledit rochet (12) revient à ladite condition fermée primaire.
  6. Ensemble de verrou selon la revendication 5, dans lequel ledit logement (16) comporte une butée (52) pour limiter le mouvement dudit bras de libération secondaire (20) quand ledit bras de libération secondaire (20) est dans ladite position déployée.
  7. Ensemble de verrou selon la revendication 6, dans lequel ledit bras de libération secondaire (20) s'étend substantiellement parallèlement audit logement (16) quand il est dans la position rétractée et s'étend substantiellement perpendiculairement audit logement (16) quand il est dans ladite position déployée.
EP01942396A 2000-01-14 2001-01-15 Dispositif de verrouillage de capot dote d'un second levier de declenchement auto-retractable Expired - Lifetime EP1254295B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US17622200P 2000-01-14 2000-01-14
US176222P 2000-01-14
PCT/CA2001/000121 WO2001051745A2 (fr) 2000-01-14 2001-01-15 Dispositif de verrouillage de capot dote d'un second levier de declenchement auto-retractable

Publications (2)

Publication Number Publication Date
EP1254295A2 EP1254295A2 (fr) 2002-11-06
EP1254295B1 true EP1254295B1 (fr) 2006-03-29

Family

ID=22643477

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01942396A Expired - Lifetime EP1254295B1 (fr) 2000-01-14 2001-01-15 Dispositif de verrouillage de capot dote d'un second levier de declenchement auto-retractable

Country Status (6)

Country Link
EP (1) EP1254295B1 (fr)
AU (1) AU2001228245A1 (fr)
BR (1) BR0107631A (fr)
CA (1) CA2395255C (fr)
DE (1) DE60118371T2 (fr)
WO (1) WO2001051745A2 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756562A (en) * 1986-11-26 1988-07-12 Ryerson & Haynes, Inc. Latch assembly for vehicles
US5000493A (en) * 1990-07-09 1991-03-19 General Motors Corporation Self-presenting secondary hood latch handle
CA2192527A1 (fr) * 1996-12-10 1998-06-10 Trevor Hunt Verrou de capot de compartiment moteur
CN1198999C (zh) * 1997-09-04 2005-04-27 阿托马国际有限公司 汽车发动机罩锁闩的辅助释放机构
DE19823574B4 (de) * 1998-05-27 2006-06-29 Schloß- und Metallwarenfabrik Böddecker & Co. GmbH & Co. KG Motorhaubenverschluß für ein Kraftfahrzeug

Also Published As

Publication number Publication date
EP1254295A2 (fr) 2002-11-06
AU2001228245A1 (en) 2001-07-24
WO2001051745A3 (fr) 2001-09-13
DE60118371D1 (de) 2006-05-18
BR0107631A (pt) 2002-10-08
DE60118371T2 (de) 2007-03-29
CA2395255A1 (fr) 2001-07-19
CA2395255C (fr) 2008-07-15
WO2001051745A2 (fr) 2001-07-19

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