EP0710755B2 - Electrically operated vehicle door lock - Google Patents

Electrically operated vehicle door lock Download PDF

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Publication number
EP0710755B2
EP0710755B2 EP95115642A EP95115642A EP0710755B2 EP 0710755 B2 EP0710755 B2 EP 0710755B2 EP 95115642 A EP95115642 A EP 95115642A EP 95115642 A EP95115642 A EP 95115642A EP 0710755 B2 EP0710755 B2 EP 0710755B2
Authority
EP
European Patent Office
Prior art keywords
lock
safety
lever
release
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.)
Expired - Lifetime
Application number
EP95115642A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0710755A1 (en
EP0710755B1 (en
Inventor
Franco Giovanni Ottino
Marco Taurasi
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11412805&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0710755(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Magna Closures SpA filed Critical Magna Closures SpA
Publication of EP0710755A1 publication Critical patent/EP0710755A1/en
Application granted granted Critical
Publication of EP0710755B1 publication Critical patent/EP0710755B1/en
Publication of EP0710755B2 publication Critical patent/EP0710755B2/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
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/14—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/0052—Locks mounted on the "frame" cooperating with means on the "wing"
    • 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
    • E05B77/22—Functions related to actuation of locks from the passenger compartment of the vehicle
    • E05B77/24—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like
    • E05B77/26—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like specially adapted for child safety
    • 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
    • E05B77/22—Functions related to actuation of locks from the passenger compartment of the vehicle
    • E05B77/24—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like
    • E05B77/28—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like for anti-theft purposes, e.g. double-locking or super-locking
    • 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
    • E05B77/46—Locking several wings simultaneously
    • E05B77/48—Locking several wings simultaneously by electrical means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/90—Manual override in case of power failure
    • 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
    • E05B85/243—Bolts rotating about an axis with a bifurcated bolt

Definitions

  • the present invention relates to an electrically operated lock, particularly for a vehicle door
  • vehicle door locks normally comprise a fork-and-catch lock mechanism movable between a release position enabling relative movement of the lock and a striker element, and a lock position wherein it engages and prevents the striker from moving in relation to the lock; a manual release lever; and a safety mechanism interposed between the release lever and the lock mechanism, and movable between a release position in which the release lever is mechanically connected to and may release the lock mechanism, and a lock position in which the release lever is disconnected from the lock mechanism.
  • Electrically released locks have also been proposed which feature a second electric motor which is activated by the central control unit to release the lock mechanism when the inside or outside door handle is operated.
  • Such locks present the advantage of being released with no manual effort required on the part of the user, by virtue of the lock mechanism being released by the electric motor via appropriate transmission mechanisms.
  • an electrically operated vehicle door lock as claimed in claim 1.
  • Number 1 in Figures 1 and 2 indicates an electrically controlled lock for the door 101 of a vehicle 102 ( Figure 9).
  • Lock 1 substantially comprises a casing 2 in which are housed: a lock mechanism 3 cooperating with a striker element or striker 4; and a safety mechanism 5 for locking the lock mechanism in a position engaging striker 4, or for enabling striker 4 to move in relation to lock 1.
  • Lock 1 is fitted to the post 103 defining the opening of door 101, and striker 4 to door 101 itself (Figure 9).
  • Casing 2 comprises an intermediate body 6 substantially in the form of a shaped plate and molded from plastic material; and a pair of plates 7, 8 fitted to opposite faces of the intermediate body and defining with it two chambers 10, 11 respectively housing lock mechanism 3 and safety mechanism 5.
  • Casing 2 presents a lateral opening 9 for enabling insertion of striker 4 and formed in body 6 and plate 7.
  • the lock mechanism ( Figures 2, 3 and 4) comprises in known manner a fork 12 and a catch 13 hinged about respective pins 14, 15 projecting from plate 7.
  • Fork 12 presents a C-shaped seat 16 for receiving striker 4 and defined by two substantially radial appendixes 17, 18, and rotates between a release position ( Figure 4) - wherein seat 16 faces opening 9 in casing 2 to enable release of striker 4 from lock mechanism 3 - and a lock position ( Figure 3) - wherein striker 4 is locked inside seat 16 and prevented from withdrawing by appendix 17 closing opening 9.
  • the lock position is defined by appendix 18 of fork 12 contacting catch 13, which is forced into engagement with fork 12 by a spring 19 ( Figure 2) wound about pin 15; and fork 12 is forced into the release position by a spring 20 wound about pin 14.
  • Fork 12 presents a radial projection 21 extending diametrically opposite seat 16 and cooperating with a microswitch 22 ( Figures 1 and 2) which switches when the fork is set to the lock position, and acts as an open-door indicator.
  • Lock 1 comprises in known manner a substantially square manual release lever 24 which is hinged to a pin 25 projecting from plate 7 and fitted through an opening (not shown) in body 6 into chamber 11, close to side 23 of casing 2 presenting opening 9, and close to the longitudinal end 32 of the casing.
  • Lever 24 presents a first arm 26 extending outwards of casing 2 and connectable, possibly via the interposition of a tie 104, to a manual emergency release lever 105 (not shown) suitably located inside the passenger compartment, conveniently on the door post; and a second arm 27 presenting a shaped opening 28 comprising a curved opening 29 with its center of curvature at the axis of pin 25, and a slot 30 extending radially towards pin 25 from the furthermost end 31 of opening 29 in relation to arm 26.
  • lever 24 is loaded clockwise (in Figure 1) into a stop position wherein it contacts a stop portion (not shown) forming part of casing 2.
  • Safety mechanism 5 comprises an elongated transmission lever 34 presenting, close to one end 35, a longitudinal slot 36 engaging in sliding manner a guide pin 37 fitted to body 6 ( Figure 2); and a tooth 38 extending from end 35 and bent 90° in relation to the plane of lever 34 engages opening 28 in arm 27 of lever 24.
  • the opposite end 39 of transmission lever 34 cooperates with an actuating pin 40 projecting from catch 13, and lever 34 also presents a second longitudinal slot 41 close to end 39 and for the purpose described later on.
  • lock 1 comprises a single electric motor 50 for controlling both lock mechanism 3 and safety mechanism 5.
  • Motor 50 is connected via a reduction gear 54 to a transmission element 55 hinged to pin 15 of catch 13; and motor 50 and reduction gear 54 are housed inside an end portion 64, opposite end 32, of body 6 of casing 2, and are enclosed by a cover 56 fitted to portion 64 and integrally defining the casing 57 of an electric connector 58 constituting the interface between lock 1 and the outside, as described in more detail later on.
  • Transmission element 55 comprises an integral sector gear 59 meshing with the output pinion 60 of reduction gear 54; and a thrust portion 61 cooperating with catch 13 and a safety control lever 45.
  • thrust portion 61 consists of a substantially radial appendix of transmission element 55, which appendix, when transmission element 55 is in the intermediate or idle angular position ( Figure 1) wherein pinion 60 meshes with an intermediate portion of sector gear 59, faces the control pin 40 of catch 13, on the same side as transmission lever 34, so as to cooperate with pin 40 when transmission element 55 is rotated anticlockwise.
  • Safety control lever 45 which also forms part of mechanism 5, pivots on pin 15 of catch 13, and, as shown more clearly in Figures 5 to 7, is substantially in the form of an obtuse triangle, and presents one end 46 hinged to pin 15, an opposite end 47 with a pin 48 described later on, and an intermediate pin 49 offset in relation to pins 15 and 48, and which engages in sliding manner the slot 41 in transmission lever 34.
  • lever 45 By means of a spring 51 ( Figure 1) wound about pin 15, lever 45 is loaded (anticlockwise in Figures 1 and 5-7) towards thrust portion 61 of transmission element 55, and is normally maintained contacting the opposite side of portion 61 to that facing pin 40 of catch 13.
  • Thrust portion 61 cooperates with a microswitch 62 ( Figure 1) which presents a contact blade 63 cooperating with portion 61, and which switches when transmission element 55 moves into said intermediate position.
  • Safety mechanism 5 also comprises a safety lock lever 67 and a safety release lever 68 ( Figures 5-7) which are hinged at one end to a common pin 69 fitted to plates 7, 8 and through body 6 substantially to the side of pin 25 of manual release lever 24 and close to the opposite side 72 of casing 2, and which extend, partially overlapping each other in scissor fashion, towards safety control lever 45.
  • the lateral edge of lever 67 facing side 72 of casing 2 presents a projection 70 which is bent 90° to define a stop for the shaped lateral edge 71 of lever 68.
  • Lever 68 presents a free end 76 cooperating with thrust portion 61 of transmission element 55; and the side of lever 67 facing end 76 of lever 68 presents two adjacent concave seats 77, 78 separated by a tooth 79.
  • Seat 78 is deeper than seat 77, and is located towards the free end 80 of lever 67.
  • Safety mechanism 5 also comprises a remote-control emergency release rod 84 housed inside casing 2, along side 72 of the casing, and which is guided longitudinally by two pins 85 sliding inside respective longitudinal slots 86 in the rod.
  • rod 84 Close to the end portion 87 facing end portion 32 of casing 2, rod 84 presents a bent lateral appendix 88 defining a transverse shoulder 89 cooperating with a serrated lateral projection 90 of safety lock lever 67; and at the opposite end 94, rod 84 presents a connecting element 95 for a Bowden cable 96 ( Figures 1, 9) connected to a manual emergency release lever (not shown) conveniently located in the boot 107 of the vehicle, and preferably in a locked compartment 108.
  • Rod 84 presents a lateral, substantially trapezoidal projection 91 extending on the opposite side to appendix 88 and close to end 94, and which cooperates with pin 40 of catch 13.
  • Lever 67 is loaded clockwise by a spring 74 wound about pin 69 and presenting one end (not shown) secured to casing 2, and another end 74' cooperating with the lateral edge of the lever to maintain it normally contacting pin 48 of control lever 45.
  • a second spring 75 wound about pin 69 presents a first end 75' cooperating with the lateral edge of lever 68 facing side 72 of casing 2, and a second end 75" cooperating with appendix 88 of rod 84; which spring 75 provides for pushing lever 68 anticlockwise so that it is normally maintained contacting tooth 70 of lever 67, as well as for exerting pull on rod 84 to withdraw projection 91 away from pin 40 of catch 13.
  • Electric connector 58 presents a number of electric terminals 97 connected to the cables of motor 50 and microswitches 22, 62, and is in-service connected, by means of wiring 98 shown schematically in Figure 2, to a central electronic unit 99 for controlling electric motor 50 and which operates in a number of control modes in response to input signals 100 received from a number of control or consent members (not shown), e. g. switches on the inside and outside door handles and front-door locks; a remote-control unit; and one or more pushbuttons in the passenger compartment for selecting special functions, such as fully disabling electric release, enabling release by the inside handles only, or enabling release by the inside front-door handles only (child safety function).
  • lock 1 Operation of lock 1 will now be described as of the Figure 1 position wherein lock 1 is locked, the safety mechanism is released, and the electric release function is assumed enabled.
  • central unit 99 On receiving a signal 100 to release the lock (via the inside or outside handle), central unit 99 operates motor 50 so as to rotate transmission element 55 anticlockwise from the Figure 3 position to the Figure 4 limit position wherein element 55 mechanically contacts a stop portion of casing 2.
  • thrust portion 61 of element 55 cooperates with pin 40 of catch 13; catch 13 is rotated anticlockwise to release fork 12; and, by virtue of spring 20, fork 12 releases striker 4 and swings into the release position ( Figure 4).
  • central unit 99 reverses motor 50; and transmission element 55 is restored to the intermediate idle position in which it is arrested upon switching of the input signal generated by microswitch 62.
  • the lock may be released manually by means of lever 24.
  • lever 24 When lever 24 is rotated anticlockwise, thrust is exerted on tooth 38 of transmission lever 34, which is engaged inside slot 30; transmission lever 34, guided by pins 37, 49, slides longitudinally so that end 39 cooperates with pin 40 of catch 13; and catch 13 is rotated in the same way as for electric release.
  • Figures 5 and 6 show the intermediate and final positions of the safety lock function, i.e. for disabling manual release of the lock.
  • central unit 99 On receiving an input signal corresponding to the above function, central unit 99 operates motor 50 so as to rotate transmission element 55 clockwise from the intermediate position shown in Figure 1.
  • thrust portion 61 cooperates with control lever 45 to rotate it clockwise about pin 15; during which rotation, pin 49 rotates transmission lever 34 about fixed pin 37; tooth 38 of lever 34 is released from slot 30 and moves into portion 29 of opening 28 in lever 24; and, at the same time, pin 48 abandons seat 77 in safety lock lever 67, moves past tooth 79, raising lever 67 slightly (Figure 5 shows the transient position of the mechanism just after pin 48 moves past tooth 79), and, by virtue of the pull exerted by spring 74 on lever 67, is seated firmly inside seat 78.
  • Figures 7 and 1 respectively showthe intermediate and final positions of the safety release function.
  • the safety mechanism is released by again operating motor 50 in the same direction as for the safety lock function.
  • thrust portion 61 raises lever 68 which, by edge 71 contacting tooth 70, transmits the thrust exerted by portion 61 to lever 67;
  • lever 67 is raised ( Figure 7) to free pin 48 of control lever 45 from seat 78 and so permit lever 45 to be rotated anticlockwise by spring 51; and the rotation of lever 45 is transmitted by pin 49 to transmission lever 34 which moves into the safety-off position shown in Figure 1.
  • the safety function provides solely for preventing release of the lock from the inside by means of manual emergency release lever 24; and, being an electrically controlled lock, release by the inside and/or outside door handles is disabled by central unit 99 as a function of input signals 100.
  • the lock is extremely straightforward, compact and cheap to produce.
  • the lock according to the invention permits the implementation of control logics for ensuring optimum on-road safety of the vehicle and for drastically reducing theft by the vehicle being broken into, while at the same time enabling mechanical operation of the lock in any operating mode, in the event of failure of the electric system, the central unit, or the actuator.
  • lock 1 may be fitted to the door in the normal way, as opposed to the door post. If fitted to the door post, the lock may conveniently be inverted in relation to the position shown, so that the fork, by cooperating from underneath with the striker when the door is closed, contributes towards supporting the weight of the door, thus reducing the load on the door hinges. Finally, changes may be made to the logics electrically controlling the lock.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • Lock And Its Accessories (AREA)
EP95115642A 1994-10-04 1995-10-04 Electrically operated vehicle door lock Expired - Lifetime EP0710755B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT94TO000780A IT1268616B1 (it) 1994-10-04 1994-10-04 Serratura ad azionamento elettrico per una portiera di un autoveicolo.
ITTO940780 1994-10-04

Publications (3)

Publication Number Publication Date
EP0710755A1 EP0710755A1 (en) 1996-05-08
EP0710755B1 EP0710755B1 (en) 1999-08-11
EP0710755B2 true EP0710755B2 (en) 2004-09-01

Family

ID=11412805

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95115642A Expired - Lifetime EP0710755B2 (en) 1994-10-04 1995-10-04 Electrically operated vehicle door lock

Country Status (6)

Country Link
EP (1) EP0710755B2 (pt)
BR (1) BR9504777A (pt)
DE (1) DE69511357T3 (pt)
ES (1) ES2135641T5 (pt)
IT (1) IT1268616B1 (pt)
PL (1) PL178100B1 (pt)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19702420C5 (de) * 1997-01-24 2009-12-31 Audi Ag Steuervorrichtung für einen Verschluß, insbesondere von Kraftfahrzeugtüren
FR2760035B1 (fr) * 1997-02-26 1999-04-30 Peugeot Dispositif de verrouillage des vehicules automobiles et retroviseur pour un tel dispositif
DE29716023U1 (de) * 1997-09-05 1997-11-13 Kiekert Ag Kraftfahrzeugtürschloß
FR2804458A1 (fr) * 2000-02-01 2001-08-03 Valeo Securite Habitacle Systeme electrique de condamnation enfant et serrure pour ouvrant de vehicule automobile comprenant ledit systeme
US6932393B2 (en) 2000-09-07 2005-08-23 Robert Bosch Gmbh Motor vehicle doorlock with combined central locking and opening actuator
DE10048709A1 (de) * 2000-09-30 2002-04-18 Kiekert Ag Kraftfahrzeugtürverschluss
EP1245764B1 (en) * 2001-03-28 2007-05-30 Aisin Seiki Kabushiki Kaisha Door latch operation device for vehicle
GB0130422D0 (en) * 2001-12-20 2002-02-06 Meritor Light Vehicle Sys Ltd Vehicle
DE10258646B3 (de) * 2002-12-13 2004-05-19 Brose Schließsysteme GmbH & Co.KG Kraftfahrzeug-Türschloß
EP1457625A3 (de) * 2003-03-08 2008-08-27 Brose Schliesssysteme GmbH & Co. KG Kraftfahrzeugschloss mit elektrischem Öffnungsantrieb
EP1580366A3 (de) 2004-03-23 2009-10-28 Brose Schliesssysteme GmbH & Co. KG Kraftfahrzeugschloss
JP4542387B2 (ja) * 2004-08-04 2010-09-15 日産自動車株式会社 車両用電気解除ドアラッチ装置
FR2878089B1 (fr) * 2004-11-12 2007-03-02 Arvinmeritor Light Vehicle Sys Moteur de serrure electrique
DE102012003743A1 (de) 2012-02-28 2013-08-29 Kiekert Aktiengesellschaft Kraftfahrzeugtürverschluss
DE102016112182A1 (de) * 2016-07-04 2018-01-04 Kiekert Ag Schließeinrichtung für ein Kraftfahrzeug
WO2019038233A1 (en) * 2017-08-24 2019-02-28 Cebi Italy S.P.A. MULTIFUNCTIONAL LOCK FOR MOTOR VEHICLE COVER

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1131405B (it) * 1979-03-24 1986-06-25 Kiekert Soehne Arn Dispositivo di chiusura a comando centralizzato per porte di veicoli a motore
DE3242527C3 (de) * 1982-11-18 1995-09-07 Neiman Sa Schloß für eine Kraftfahrzeugtür
DE3531931A1 (de) * 1985-09-07 1987-03-19 Ymos Ag Ind Produkte Schliesseinrichtung fuer kraftfahrzeuge
US4904006A (en) * 1986-10-06 1990-02-27 Aisin Seiki Kabushiki Kaisha Door lock assembly for automotive vehicles
DE3902776A1 (de) * 1988-08-13 1990-02-15 Kiekert Gmbh Co Kg Kraftfahrzeugtuerverschluss mit zentralverriegelungsantrieb und diebstahlsicherung
DE4222868A1 (de) * 1992-07-11 1994-01-13 Bosch Gmbh Robert Sperrvorrichtung für Türen eines Kraftfahrzeugs
GB2268966A (en) * 1992-07-25 1994-01-26 Ford Motor Co A door latching arrangement.
DE4240013A1 (de) * 1992-08-25 1994-06-01 Bayerische Motoren Werke Ag Fernsteuerbares Schloß, insbesondere für Kraftfahrzeugtüren

Also Published As

Publication number Publication date
DE69511357D1 (de) 1999-09-16
BR9504777A (pt) 1996-10-15
ITTO940780A1 (it) 1996-04-04
EP0710755A1 (en) 1996-05-08
DE69511357T3 (de) 2005-05-19
DE69511357T2 (de) 2000-01-20
ITTO940780A0 (it) 1994-10-04
EP0710755B1 (en) 1999-08-11
ES2135641T5 (es) 2005-04-01
ES2135641T3 (es) 1999-11-01
PL178100B1 (pl) 2000-02-29
IT1268616B1 (it) 1997-03-06
PL310771A1 (en) 1996-04-15

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