US3858919A - Motor vehicle door latch - Google Patents

Motor vehicle door latch Download PDF

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Publication number
US3858919A
US3858919A US342804A US34280473A US3858919A US 3858919 A US3858919 A US 3858919A US 342804 A US342804 A US 342804A US 34280473 A US34280473 A US 34280473A US 3858919 A US3858919 A US 3858919A
Authority
US
United States
Prior art keywords
door
lever
pin
housing
pawl
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
US342804A
Other languages
English (en)
Inventor
Frank Kleefeld
Gunter Gmeiner
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.)
Kiekert AG
Original Assignee
Kiekert Soehne Arn
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
Priority claimed from DE19722213190 external-priority patent/DE2213190C3/de
Application filed by Kiekert Soehne Arn filed Critical Kiekert Soehne Arn
Application granted granted Critical
Publication of US3858919A publication Critical patent/US3858919A/en
Assigned to KIEKERT GMBH & CO. KOMMANDITGESELLSCHAFT reassignment KIEKERT GMBH & CO. KOMMANDITGESELLSCHAFT CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: ARN, KIEKERT SOHNE
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
    • E05B83/36—Locks for passenger or like doors
    • E05B83/367—Locks for passenger or like doors with centering alignment pin
    • 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
    • E05B85/243—Bolts rotating about an axis with a bifurcated bolt
    • 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
    • E05B85/04—Strikers
    • E05B85/045—Strikers for bifurcated bolts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00—Closure fasteners
    • Y10S292/26—Automatic undogging or reconnecting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00—Closure fasteners
    • Y10S292/38—Plastic latch parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1044—Multiple head
    • Y10T292/1045—Operating means
    • Y10T292/1047—Closure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/80—Parts, attachments, accessories and adjuncts
    • Y10T70/8919—Antifriction provisions

Definitions

  • the actuating member is formed with a slot in which a pin carried by the locking mechanism is engaged.
  • the operating lever has a guide surface with which the pin is only engageable when the pin is towards one end of the guide slot.
  • This pin is made of a synthetic resin having a low coefficient of friction such as polytetrafluorethylene.
  • the present invention relates to a latch and, more particularly to a lockable motor-vehicle door latch.
  • a coupling body on the doorpost is engageable with a locking pawl carried on the door edge.
  • An operating lever or other similar element cooperating with such a lever is formed as a keeper and is engageable with the locking pawl to prevent its displacement unless the inner or outer door handle is operated.
  • an actuating lever or member isprovided which is directly coupled to the two door handles, and a link is provided between this member and the keeper lever.
  • a locking mechanism can act on this link to decouple the keeper from the door handles so that the door is locked.
  • the link is usually a bent-over tab projecting from one of the levers, and one of the levers has a pivot displaceable by the locking mechanism into a position wherein the tab does not grasp the other lever. This, of course, ensures that the handles will be ineffective until the movable lever is displaced back to its position in which the tab is effective.
  • Another object is the provision of a motor-vehicle door latch which overcomes the aforementioned disadvantages.
  • actuating member that element which is operated directly by the door handles and can even be a guide on the operating lever, which is that element that blocks or unblocks the locking pawl.
  • the link is displaceable along one of the guides between two locations, in the first of which it couples the actuating member to the operating lever, and in the second of which it permits displacement of the actuating member without displacement of the operating lever. This second position corresponds to the locked position of the door.
  • Locking mechanism is provided for displacing this link back to the first-described position when the actuating member is in the actuated position so as to engage this link against the other guide and cam the operating leverover and free the pawl.
  • the locking mechanism is formed of a chain of levers pivoted on the latch housing, one of the levers having an arm carrying a pin which constitutes the link.
  • the link is made of a synthetic resin having a low coefficient of friction polytetraflourethylene (Teflon) being found advantageous, and rides in a groove or slot on the actuating member and is engageable with a guide surface on the operating lever.
  • Teflon polytetraflourethylene
  • FIG. 1 is a perspective view of the latch according'to the present invention
  • FIG. 2 is a perspective view of the latch seen in the direction of arrow II of FIG. 1;
  • FIGS. 3 and 4 are diagrammatic views illustrating operation of the latch in the unlocked and locked positions, respectively.
  • the latch comprises an L- shaped housing 2 adapted to be mounted at the edge of a motor vehicle door with its longer side 2' extending tangentially of the doors pivot axis and its shorter side 2" lying in a plane parallel to the plane of the door.
  • a coupling element 3 is engageable in a cutout 4 formed in the housing 2. This heavy steel element 3 is secured to the vehicle doorpost.
  • a second steel plate 36 is riveted to the inside of housing 2 to close the inside of cutout 4.
  • an outwardly directed pin 19 having a frustoconical end 19' receivable within a correspondingly shaped socket or hole 20 in the coupling element 3 which is formed with a pair of ledges 21 which engage under the edges of cutout 4 to secure the element 3 tightly within the housing 2 and insure an exact positioning of the door relative to the doorpost in the closed position of the door.
  • the element 3 is provided between its ledge 21 and main body with two parallel steel pins 5 which coact with teeth 22 of a locking pawl 1 pivoted at 23 on the housing side 2' and the plate 36 below the cutout 4.
  • the pawl l is shown in FIG. 1 in solid lines in the position it assumes with the door closed and in dot-dash lines in the door-open position.
  • the pins 5 act as the teeth of a rack which mesh with the teeth 22 of the pawl 1.
  • This pawl l is normally biased by a spring 24 into the dot-dash line position of FIG. 1, but can be stepped in either the solid-line position of FIG. 1 or an angular position intermediate the two by engagement of an element 6 with either of two teeth 25 formed on the pawl.
  • the element 6 is a two-arm lever pivote'd at 7 on the side 2 and having an arm 9 by which it is operated and an arm 26 having an end 27 acting as a keeper and engageable with the teeth 25 to block the pawl l.
  • a spring 28 is provided to urge the end 27 against the pawl l.
  • the door is opened by actuation of an inside or outside door handle 29. which pivots a lever 8 about its axis 30 on the side 2 in the direction shown by arrow 14.
  • a coupling bolt of polytetrafluorethylene is shown engaged in a slot 16 formed in the lever 8.
  • Displacement of the lever in direction l4 pushes the bolt 15 against the actuating arm 9 of the operating element 6 to pivot this element back and free the pawl.
  • the actuated position is shown in solid lines and the unactuated position in dotdash lines.
  • a locking lever 11 is pivoted at 10 on the side 2" of the housing 2.
  • a'locking button 31 on the vehicle door is depressed or when a lock cylinder 32 is rotated this element 11 pivots a lever 12 pivoted on the housing 2 on a pin 37 at the base of the cutout 4 in the direction .by arrows 13.
  • Another element 33 is pivoted on this lever 12 and engageable with the pawl l to prevent the vehicle door from being shut'with the button 31 depressed so as to makeit impossible for the operator to lock his keys in the car.
  • Pivotal on a pin 34 on the end of lever 12 is an operating arm 35 on whose end the Teflon pin 15 is mounted.
  • FIG. 3 makes it clear that if the pin 15 is in this position pivoting of the lever 8 from the dot-dash position to the solid-line position will not operate the arm 9 of lever 6 since the pin 15 will not couple the two together. The pin 15 will not engage this arm 9 at all.
  • a door latch comprising;
  • a coupling body adapted to be mounted on a motorvehicle doorpost
  • a housing adapted to be mounted on a motor-vehicle door
  • a locking pawl displaceable on said housing and lockingly engageable'with said body
  • an operating lever on said housing having a keeper engageable with said pawl and displaceable between an actuated position permitting displacement of said pawl thereby freeing said door from said doorpost and an unactuated position blocking displacement of said pawl thereby securing said door to said doorpost, said lever being formed with a guide surface;
  • anactuating member pivotal on said housing and formed with a guide slot, said pawl, said layer, and said member being pivotal on said housing about generally parallel axes;
  • a locking arm displaceable on said housing transverse I to said axes
  • locking means connected to said arm for displacing said link pin in either position of said member from said first to said second location for decoupling said member from said lever and for displacing said link pin against said guide surface and forcing said operating lever from its unactuated position to its actuated position.

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  • Lock And Its Accessories (AREA)
US342804A 1972-03-17 1973-03-19 Motor vehicle door latch Expired - Lifetime US3858919A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722213190 DE2213190C3 (de) 1972-03-17 Innenverriegelungseinrichtung in einem Kraftfahrzeug-TürverschluB

Publications (1)

Publication Number Publication Date
US3858919A true US3858919A (en) 1975-01-07

Family

ID=5839321

Family Applications (1)

Application Number Title Priority Date Filing Date
US342804A Expired - Lifetime US3858919A (en) 1972-03-17 1973-03-19 Motor vehicle door latch

Country Status (2)

Country Link
US (1) US3858919A (sl)
FR (1) FR2177291A5 (sl)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0285412A2 (en) * 1987-03-30 1988-10-05 Magna International Inc. Latch mechanism
US4986576A (en) * 1988-12-27 1991-01-22 The Hartwell Corporation Locking door latch
US5106134A (en) * 1988-03-31 1992-04-21 Ktm Locks, Cmt Group, Division Of Magna International Inc. Latch housing & striker for being secured in the latch housing
US5127686A (en) * 1991-02-14 1992-07-07 Tri-Mark Corporation Door closure assembly
US5181754A (en) * 1990-07-20 1993-01-26 Mitsui Kinzoku Kogyo Kabushiki Kaisha Vehicular door lock device
US5785366A (en) * 1993-11-30 1998-07-28 Ohi Seisakusho Co., Ltd. Door lock device
US5803515A (en) * 1996-09-04 1998-09-08 General Motors Corporation Vehicle door latch
US6126212A (en) * 1998-05-12 2000-10-03 Mitsui Kinzoku Kogyo Kabushiki Kaisha Anti-panic vehicle door latch device
US20020171250A1 (en) * 2001-05-15 2002-11-21 Fumio Kobayashi Door locking apparatus for vehicle
US6494505B2 (en) * 2000-10-30 2002-12-17 Ohi Seisakusho Co., Ltd. Automotive door lock assembly
US6540272B2 (en) * 2000-03-23 2003-04-01 Meritor Light Vehicle Systems (Uk) Limited Latch mechanism
EP1312736A1 (fr) * 2001-11-19 2003-05-21 Valeo Securité Habitacle Serrure et gâche pour porte de véhicule automobile
US6575505B1 (en) * 2000-10-25 2003-06-10 Strattec Security Corporation Latch apparatus and method
US6592157B1 (en) * 1999-09-04 2003-07-15 Meritor Light Vehicle Systems (Uk) Limited Latch
US20040036298A1 (en) * 2002-05-24 2004-02-26 Aisin Seiki Kabushiki Kaisha Door lock device
EP1408180A2 (en) * 2002-10-11 2004-04-14 ArvinMeritor Light Vehicle Systems (UK) Ltd Latch assembly, latch and striker
US20040113437A1 (en) * 2002-10-18 2004-06-17 Aisin Seiki Kabushiki Kaisha Door lock device
US20040154364A1 (en) * 1999-03-05 2004-08-12 Strattec Security Corporation Modular latch apparatus and method
US6848286B2 (en) 1999-03-05 2005-02-01 Strattec Security Corporation Electronic latch apparatus and method
US20050092045A1 (en) * 1999-03-05 2005-05-05 Strattec Security Corporation Latch apparatus and method
US20150345189A1 (en) * 2014-05-30 2015-12-03 Ian Dow Latch with spring for bell crank lever
CN110107169A (zh) * 2019-04-03 2019-08-09 浙江零跑科技有限公司 一种汽车门锁对调布置结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121580A (en) * 1961-06-09 1964-02-18 Ford Motor Co Vehicle door latch mechanism
US3487667A (en) * 1966-03-31 1970-01-06 Norris Industries Lock with metal shim between plastic retractor slide and plastic retractor case
US3695662A (en) * 1970-09-18 1972-10-03 Atwood Vacuum Machine Co Latch for vehicle doors
US3697105A (en) * 1969-12-24 1972-10-10 Atwood Vacuum Machine Co Latch for vehicle doors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121580A (en) * 1961-06-09 1964-02-18 Ford Motor Co Vehicle door latch mechanism
US3487667A (en) * 1966-03-31 1970-01-06 Norris Industries Lock with metal shim between plastic retractor slide and plastic retractor case
US3697105A (en) * 1969-12-24 1972-10-10 Atwood Vacuum Machine Co Latch for vehicle doors
US3695662A (en) * 1970-09-18 1972-10-03 Atwood Vacuum Machine Co Latch for vehicle doors

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0285412A2 (en) * 1987-03-30 1988-10-05 Magna International Inc. Latch mechanism
EP0285412A3 (en) * 1987-03-30 1989-10-04 Magna International Inc. Latch mechanism
US5106134A (en) * 1988-03-31 1992-04-21 Ktm Locks, Cmt Group, Division Of Magna International Inc. Latch housing & striker for being secured in the latch housing
US4986576A (en) * 1988-12-27 1991-01-22 The Hartwell Corporation Locking door latch
US5181754A (en) * 1990-07-20 1993-01-26 Mitsui Kinzoku Kogyo Kabushiki Kaisha Vehicular door lock device
US5127686A (en) * 1991-02-14 1992-07-07 Tri-Mark Corporation Door closure assembly
US5785366A (en) * 1993-11-30 1998-07-28 Ohi Seisakusho Co., Ltd. Door lock device
US5803515A (en) * 1996-09-04 1998-09-08 General Motors Corporation Vehicle door latch
US6126212A (en) * 1998-05-12 2000-10-03 Mitsui Kinzoku Kogyo Kabushiki Kaisha Anti-panic vehicle door latch device
US20050127687A1 (en) * 1999-03-05 2005-06-16 Strattec Security Corporation Electronic latch apparatus and method
US7363788B2 (en) 1999-03-05 2008-04-29 Strattec Security Corporation Latch apparatus and method
US20050092045A1 (en) * 1999-03-05 2005-05-05 Strattec Security Corporation Latch apparatus and method
US6848286B2 (en) 1999-03-05 2005-02-01 Strattec Security Corporation Electronic latch apparatus and method
US20040154364A1 (en) * 1999-03-05 2004-08-12 Strattec Security Corporation Modular latch apparatus and method
US6592157B1 (en) * 1999-09-04 2003-07-15 Meritor Light Vehicle Systems (Uk) Limited Latch
US20030199223A1 (en) * 1999-09-04 2003-10-23 Spurr Nigel Victor Latch
US7086671B2 (en) * 1999-09-04 2006-08-08 Meritor Light Vehicle Systems (Uk) Limited Latch
US6540272B2 (en) * 2000-03-23 2003-04-01 Meritor Light Vehicle Systems (Uk) Limited Latch mechanism
US6575505B1 (en) * 2000-10-25 2003-06-10 Strattec Security Corporation Latch apparatus and method
US6494505B2 (en) * 2000-10-30 2002-12-17 Ohi Seisakusho Co., Ltd. Automotive door lock assembly
US20020171250A1 (en) * 2001-05-15 2002-11-21 Fumio Kobayashi Door locking apparatus for vehicle
US6793255B2 (en) * 2001-05-15 2004-09-21 Ohi Seisakusho Co., Ltd. Door locking apparatus for vehicle
FR2832450A1 (fr) * 2001-11-19 2003-05-23 Valeo Securite Habitacle Ensemble de serrure gache pour porte de vehicule automobile
EP1312736A1 (fr) * 2001-11-19 2003-05-21 Valeo Securité Habitacle Serrure et gâche pour porte de véhicule automobile
US7021681B2 (en) * 2002-05-24 2006-04-04 Aisin Seiki Kabushiki Kaisha Door lock device
US20040036298A1 (en) * 2002-05-24 2004-02-26 Aisin Seiki Kabushiki Kaisha Door lock device
EP1408180A2 (en) * 2002-10-11 2004-04-14 ArvinMeritor Light Vehicle Systems (UK) Ltd Latch assembly, latch and striker
EP1408180A3 (en) * 2002-10-11 2006-07-26 ArvinMeritor Light Vehicle Systems (UK) Ltd Latch assembly, latch and striker
US20040113437A1 (en) * 2002-10-18 2004-06-17 Aisin Seiki Kabushiki Kaisha Door lock device
US20150345189A1 (en) * 2014-05-30 2015-12-03 Ian Dow Latch with spring for bell crank lever
US10641018B2 (en) * 2014-05-30 2020-05-05 Inteva Products, Llc Latch with spring for bell crank lever
US10669750B2 (en) 2014-05-30 2020-06-02 Inteva Products, Llc Latch with hold open lever
CN110107169A (zh) * 2019-04-03 2019-08-09 浙江零跑科技有限公司 一种汽车门锁对调布置结构
CN110107169B (zh) * 2019-04-03 2020-10-23 浙江零跑科技有限公司 一种汽车门锁对调布置结构

Also Published As

Publication number Publication date
FR2177291A5 (sl) 1973-11-02
DE2213190A1 (de) 1973-09-27
DE2213190B2 (de) 1975-08-07

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