EP0524574B1 - Actuating device, particularly for activating the safety lever of a vehicle door lock - Google Patents

Actuating device, particularly for activating the safety lever of a vehicle door lock Download PDF

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Publication number
EP0524574B1
EP0524574B1 EP92112346A EP92112346A EP0524574B1 EP 0524574 B1 EP0524574 B1 EP 0524574B1 EP 92112346 A EP92112346 A EP 92112346A EP 92112346 A EP92112346 A EP 92112346A EP 0524574 B1 EP0524574 B1 EP 0524574B1
Authority
EP
European Patent Office
Prior art keywords
casing
actuating device
sector gear
fact
lock
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
EP92112346A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0524574A1 (en
Inventor
Franco Giovanni Ottino
Luca Bigazzi
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 EP0524574A1 publication Critical patent/EP0524574A1/en
Application granted granted Critical
Publication of EP0524574B1 publication Critical patent/EP0524574B1/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
    • E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
    • E05B81/25—Actuators mounted separately from the lock and controlling the lock functions through mechanical connections

Definitions

  • the present invention relates to an actuating device, particularly for activating the safety lever of a vehicle door lock.
  • the actuating device comprises control means connectable to the safety lever on the lock; an electric motor for powering the control means; and a gear mechanism located between the electric motor and the control means, and comprising a reduction unit and a rack.
  • the control means normally consisting of a fork element connectable to the safety lever, are connected to the rack, which is normally connected to a guide so as to move between two limit positions wherein the safety lever is respectively locked and released.
  • EP-A-0 064 602 discloses a door lock actuator according to the preamble of claim 1.
  • Number 1 in Fig.s 1 to 3 indicates an actuating device for activating the safety lever 2 of a vehicle door lock 3.
  • Device 1 is housed inside a casing 4 4 comprising two portions 5 and 6 connected by means of a number of screws 7 and the peripheral annular contacting portion of which defines a labyrinth seal 9.
  • Casing 4 is connected to lock 3 in a predetermined position, preferably by means of two screws 10 (only one of which is shown in Fig.1), or, according to a variation not shown, is fitted firmly to lock 3 by means of a snap-on connecting device.
  • device 1 comprises a control element 11 connectable to safety lever 2; an electric motor 13 for powering element 11; and a gear mechanism 14 located between motor 13 and control element 11.
  • mechanism 14 comprises a pinion 15 fitted to the output shaft of motor 13, which is housed inside a cavity 16 defined by portion 5 of casing 4; and an intermediate gear 18 (Fig.s 1 and 3) meshing with pinion 15 and mounted for rotation about a cylindrical body 19.
  • cylindrical body 19 is mounted for rotation in relation to casing 4 by means of a pin 20 force-fitted inside a through hole 21 coaxial with cylindrical body 19, and the opposite ends of which project outwards of body 19 and engage, in rotary manner, respective seats 22 formed in portions 5 and 6 of casing 4.
  • cylindrical body 19 presents a further gear 23 coaxial with pin 20 and secured angularly to intermediate gear 18 via a known butterfly face coupling 24 (not described) enabling predetermined relative rotation of gear 23 and intermediate gear 18.
  • mechanism 14 also comprises a sector gear 25 meshing with gear 23 and secured to casing 4 so as to rotate in relation to the same about an axis 26 coincident with the axis of rotation of control element 11.
  • sector gear 25 is connected by an elbow 27 to the intermediate portion 28 of a pin 29 parallel to pin 20 and also comprising two end portions 30 and 31; portion 30 engaging in rotary manner a seat 33 formed in portion 6 of casing 4; and portion 31 extending outwards of casing 4 through a hole 34 engaged loosely by portion 31 and formed in a recess 35 on portion 5 of casing 4.
  • portion 31 is fitted in angularly fixed manner with the end portion 37 of control element 11, which is substantially Z-shaped. More specifically, a free end portion 38 of portion 31 presents two diametrically-opposed flat milled portions 39, and engages a seat 40 formed in end portion 37 of control element 11 and so shaped as to define two flat surfaces interacting with milled portions 39.
  • Control element 11 is also secured axially in relation to pin 29 by a screw 42 extending through a hole 43 formed in end portion 37 of control element 11 and coaxial with seat 40, and engaging a threaded hole 44 formed in pin 29.
  • control element 11 in addition to end portion 37, control element 11 also comprises a fork-shaped lever 45 extending outwards of casing 4 and made integral with portion 37 by a wall 46 also extending outwards of casing 4 and defined, on the side facing casing 4, by a curved surface having its concave side facing pin 29.
  • Lever 45 extends outwards of casing 4 substantially on the opposite side of intermediate portion 28 of pin 29 as compared with elbow 27, and presents a substantially V-shaped opening 47 extending substantially perpendicularly to pin 29, with its concavity facing safety lever 2.
  • Lever 2 comprises a pin 48 extending through and engaging in sliding manner opening 47, so as to angularly secure lever 45 to lever 2 of lock 3.
  • device 1 comprises a limit stop device 49 for limiting rotation of sector gear 25 and lever 45 to a first and second limit position wherein the safety lever is respectively locked and released, as shown by the dotted and continuous lines respectively in Fig.1.
  • limit stop device 49 comprises a cylindrical projection 50 integral with sector gear 25, extending on the opposite side of sector gear 25 as compared with intermediate gear 18, and cooperating, in use, with substantially semicylindrical walls 51 (Fig.2) integral with an inner surface of portion 6 of casing 4 extending towards sector gear 25.
  • projection 50 is fitted with an elastomeric shock absorber 52.
  • device 1 comprises a microswitch 53 adjacent to intermediate gear 18 and pin 29, and activated by an appendix 54 (Fig.2) integral with elbow 27, extending on the opposite side of elbow 27 as compared with projection 50, and cooperating with the control lever 55 of microswitch 53.
  • appendix 54 When activated by appendix 54, microswitch 53 provides for supplying a position signal to a timed control system (not shown) for switching the polarity of electric motor 13 and so inverting motor 13 and, consequently, rotation of sector gear 25.
  • a timed control system not shown
  • the parts facing pin 29 and intermediate gear 18 are protected by two walls 56 integral with portion 5 of casing 4, substantially surrounding pin 29 and partially surrounding intermediate gear 18, and extending below elbow 27.
  • casing 4 is so formed as to define a first electric connector 58 comprising first terminals 59 of wiring 60 of motor 13, and second terminals (not shown) of wiring 60' of a device 61 (Fig.1) for detecting imperfect closure of lock 3.
  • wiring 60' comprises a first number of electric cables (not shown) having one end connected to the terminals (not shown) integral with connector 58, extending outwards of casing 4 through an opening 62 (Fig.1) in portion 6, and having the opposite end integral with a first intermediate connector 63 housed inside a seat 63' in portion 6 of casing 4.
  • Wiring 60' also comprises a second number of electric cables having one end connected to a second intermediate connector 63'' connectable in releasable manner to first intermediate connector 63 integral with casing 4, and the opposite end connected to detecting device 61.
  • detecting device 61 comprises wiring 64 (shown partially) without intermediate connectors 63 and 63'', extending entirely outside casing 4, and terminating in a connector 65 having terminals 66 and designed to click inside a seat 67 in portion 6 of casing 4.
  • Seat 67 is formed next to connector 58 housing terminals 59 of motor 13, and is substantially parallel to the longitudinal axis of connector 58, so that, when connected, terminals 66 of device 61 are substantially parallel to those of motor 13.
  • connector 65 of device 61 comprises a first terminal 69 projecting outwards of connector 65; and a second terminal 70 inside connector 65 and defining a seat 71 for the end portion 72 of a metal element 73 substantially similar to first terminal 69 and fitted firmly to connector 58 integral with casing 4.
  • actuating device 1 provides for enhanced mechanical efficiency of gear mechanism 14, thus enabling the use of smaller, low-power electric motors 13.
  • gear mechanism 14 in particular provides for troublefree manual operation of safety lever 2 in the event of failure of electric motor 13, by virtue of all the components of mechanism 14 being connected in rotary manner to the supporting structure, thus greatly reducing friction as compared with sliding components, and enabling the elimination of systems for disconnecting and preventing operation of actuating device 1 when manually operating safety lever 2.
  • control element 11 in particular the fact that it is formed in two separate parts, provides for safeguarding against external pollutants by eliminating the need for an opening in casing 4 for enabling rotation of lever 45.
  • electric connector 58 integral with casing 4 and fitted with the terminals of electric motor 13, microswitch 53 and open-door detecting device 61, enables the above to be connected to the vehicle wiring system (not shown) in one single operation, preferably by means of robots, with no need for skilled labour.
  • sector gear 25 may be replaced by a normal gear; and the angular position of lever 45 may be determined by detectors mounted on pin 29 supporting sector gear 25.

Landscapes

  • Lock And Its Accessories (AREA)
EP92112346A 1991-07-23 1992-07-20 Actuating device, particularly for activating the safety lever of a vehicle door lock Expired - Lifetime EP0524574B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO910580 1991-07-23
ITTO910580A IT1250204B (it) 1991-07-23 1991-07-23 Dispositivo attuatore, particolarmente per l'azionamento di una leva di sicurezza di una serratura per portiere di veicoli

Publications (2)

Publication Number Publication Date
EP0524574A1 EP0524574A1 (en) 1993-01-27
EP0524574B1 true EP0524574B1 (en) 1998-10-21

Family

ID=11409511

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92112346A Expired - Lifetime EP0524574B1 (en) 1991-07-23 1992-07-20 Actuating device, particularly for activating the safety lever of a vehicle door lock

Country Status (4)

Country Link
EP (1) EP0524574B1 (it)
DE (1) DE69227341T2 (it)
ES (1) ES2124236T3 (it)
IT (1) IT1250204B (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1257394B (it) * 1992-09-22 1996-01-15 Roltra Morse Spa Dispositivo attuatore, particolarmente per l'azionamento di una leva di sicurezza di una serratura per portiere di veicoli.
DE19702205B4 (de) * 1997-01-23 2004-12-23 Kiekert Ag Kraftfahrzeugtürschloß, insbesondere für Kraftfahrzeuge mit Zentralverriegelungs- und Diebstahlsicherungseinrichtung
IN2013DE03417A (it) * 2013-11-22 2015-07-10 Inteva Products Llc

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172083A (en) * 1981-04-15 1982-10-22 Nissan Motor Door lock manipulating apparatus
JPH082353Y2 (ja) * 1988-12-15 1996-01-24 日産自動車株式会社 アクチュエータ
FR2656030A1 (fr) * 1989-12-15 1991-06-21 Vachette Sa Serrure pour portiere de vehicule automobile comportant une commande electrique.

Also Published As

Publication number Publication date
ITTO910580A1 (it) 1993-01-23
EP0524574A1 (en) 1993-01-27
ITTO910580A0 (it) 1991-07-23
IT1250204B (it) 1995-04-03
ES2124236T3 (es) 1999-02-01
DE69227341T2 (de) 1999-05-20
DE69227341D1 (de) 1998-11-26

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