EP0589423B1 - Actuating device, particularly for the safety lever of a vehicle door lock - Google Patents

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

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Publication number
EP0589423B1
EP0589423B1 EP93115209A EP93115209A EP0589423B1 EP 0589423 B1 EP0589423 B1 EP 0589423B1 EP 93115209 A EP93115209 A EP 93115209A EP 93115209 A EP93115209 A EP 93115209A EP 0589423 B1 EP0589423 B1 EP 0589423B1
Authority
EP
European Patent Office
Prior art keywords
control member
fact
pin
safety lever
gear
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
EP93115209A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0589423A1 (en
Inventor
Franco Giovanni Ottino
Giacomo Crotti
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 EP0589423A1 publication Critical patent/EP0589423A1/en
Application granted granted Critical
Publication of EP0589423B1 publication Critical patent/EP0589423B1/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 the safety lever of a vehicle door lock.
  • Actuating devices comprising a control member connected to the safety lever of the lock; an electric motor for activating the control member; and a gear transmission mechanism interposed between the electric motor and the control member.
  • connection between the control member and transmission mechanism normally consists of a gear and, as such, is permanent, so that manual operation of the lock is necessarily transmitted from the safety lever to the control member and from this to the transmission mechanism and electric motor.
  • a common drawback of known actuating devices is the impossibility of manually operating the lock in the event of a breakdown involving seizure of any one of the transmission members (e.g. a gear) and, consequently, jamming of the transmission mechanism itself.
  • an actuating device particularly for the safety lever of a vehicle door lock, comprising a control member connectable to the safety lever of the lock; an electric motor for activating said control member; and a gear transmission mechanism in turn comprising an input member connected angularly to the shaft of said motor, and an output member; characterized by the fact that it comprises friction clutch means interposed between said output member of said gear mechanism and said control member; said friction clutch means being designed to disengage said control member from said output member of said gear mechanism upon the transmitted load exceeding a predetermined threshold value.
  • Number 1 in Fig.s 1 and 2 indicates an actuating device for the safety lever 2 of lock 3 of a vehicle door (not shown).
  • Device 1 is housed inside a casing 4 comprising two half shells 5 and 6 connected to each other by means of a number of screws 7, and the peripheral mating portion of which forms a labyrinth seal 8.
  • Casing 4 is fitted to lock 3 in a predetermined position, preferably by means of two screws (not shown) engaging respective holes 9 formed in two top assembly tabs 10.
  • device 1 comprises a control member 11 connected to safety lever 2; an electric motor 13 for activating member 11; and a gear transmission mechanism 14 interposed between electric motor 13 and control member 11.
  • Transmission mechanism 14 which is described only briefly, is of known type, as described in Italian Patent Application n. TO91A000580 filed on 23 July, 1991, and the content of which is included herein by way of reference as required.
  • transmission mechanism 14 comprises a pinion 15 fitted to the output shaft of electric motor 13; and an intermediate gear 16 meshing with pinion 15 and rotating about a pin 17.
  • Gear 16 is connected to a coaxial pinion 18 by a known coupling 19 enabling a limited predetermined amount of rotation.
  • Pinion 18 drives an output member 20 of mechanism 14 (Fig.2) comprising, integrally, a pin 23 supported in angularly free manner on half shells 5 and 6 of casing 4; and a lever 24 having an end sector gear 25 meshing with pinion 18.
  • Control member 11 presents a fork-shaped end 26, and, at the opposite end, a through hole 29 engaged by a portion 27 of pin 23 projecting axially from half shell 4.
  • the fork-shaped end 26 of control member 11 cooperates with a pin 28 integral with safety lever 2 of lock 3.
  • control member 11 is normally maintained integral with pin 23 by a friction clutch device indicated as a whole by 30.
  • Device 30 substantially comprises a disk 33 mounted prismatically on a portion of portion 27 of pin 23 having two flat milled portions 34 (only one of which is shown in Fig.2); a washer 35 fitted to one end of pin 23 by means of a screw 36; and a Belleville washer 37 fitted to portion 27 of pin 23, and interposed axially between washer 35 and disk 33, so as to axially load and force disk 33 against control member 11.
  • Control member 11 presents a number of spherical impressions 38 formed about hole 29, on the face cooperating with disk 33, which in turn presents a corresponding number of spherical projections 39 designed to cooperate with impressions 38.
  • the load of washer 37 is so selected that engagement of projections 39 and impressions 38 enables transmission of a predetermined maximum torque between output member 20 of transmission mechanism 14 and control member 11, which maximum torque must of course be greater than that transmitted under normal, both manual and electric, operating conditions.
  • Device 1 operates as follows.
  • the safety lever may be operated either directly, i.e. manually, using the key or the knob on the inside of the door, or electrically by means of device 1.
  • Fig.s 3 and 4 show alternative embodiments of friction clutch device 30, any parts of which similar or equivalent to those already described in connection with Fig.s 1 and 2 are indicated using the same reference numbers.
  • device 30 has no disk 33, and washer 37 acts directly on control member 11 for maintaining it in contact with an axial shoulder 40 formed on pin 23. Projections 39 and corresponding impressions 38 are formed on control member 11 and shoulder 40 respectively.
  • control member 11 is locked on to pin 23 by a fast-fit element 44 made of plastic material and comprising a head 45 cooperating axially with member 11, and a rod 46 housed in an axial hole 47 on pin 23 and having elastic end teeth 48 which snap on to an axial shoulder 49 formed in hole 47.
  • a fast-fit element 44 made of plastic material and comprising a head 45 cooperating axially with member 11, and a rod 46 housed in an axial hole 47 on pin 23 and having elastic end teeth 48 which snap on to an axial shoulder 49 formed in hole 47.
  • projections 39 and corresponding impressions 38 are formed on control member 11 and shoulder 40 of pin 23 respectively.
  • the elastic pressure forcing control member 11 against shoulder 40 is generated by the elasticity of rod 46, which is subjected to pull in the event of relative rotation between control member 11 and pin 23.

Landscapes

  • Lock And Its Accessories (AREA)
EP93115209A 1992-09-22 1993-09-21 Actuating device, particularly for the safety lever of a vehicle door lock Expired - Lifetime EP0589423B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO920780 1992-09-22
ITTO920780A IT1257394B (it) 1992-09-22 1992-09-22 Dispositivo attuatore, particolarmente per l'azionamento di una leva di sicurezza di una serratura per portiere di veicoli.

Publications (2)

Publication Number Publication Date
EP0589423A1 EP0589423A1 (en) 1994-03-30
EP0589423B1 true EP0589423B1 (en) 1996-11-27

Family

ID=11410739

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93115209A Expired - Lifetime EP0589423B1 (en) 1992-09-22 1993-09-21 Actuating device, particularly for the safety lever of a vehicle door lock

Country Status (4)

Country Link
EP (1) EP0589423B1 (it)
DE (1) DE69306211T2 (it)
ES (1) ES2096825T3 (it)
IT (1) IT1257394B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008004332U1 (de) * 2008-03-29 2009-08-06 Kiekert Ag Kraftfahrzeug-Türschloss
DE202010007353U1 (de) 2010-05-28 2011-10-20 Kiekert Ag Kraftfahrzeugbauteilgehäuse

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3742153A1 (de) * 1987-12-11 1989-06-22 Winkhaus Fa August Elektromotorisch angetriebenes tuerschloss
JP2599419B2 (ja) * 1988-03-15 1997-04-09 アスモ株式会社 ドアロック・アクチュエータ
JPH02256776A (ja) * 1989-03-30 1990-10-17 Ansei Kogyo:Kk 電動操作装置
DE4033684A1 (de) * 1990-10-23 1992-04-30 Winkhaus Fa August Elektromotorisch angetriebenes tuerschloss, insbesondere rohrrahmen-tuerschloss
IT1250204B (it) * 1991-07-23 1995-04-03 Roltra Morse Spa Dispositivo attuatore, particolarmente per l'azionamento di una leva di sicurezza di una serratura per portiere di veicoli

Also Published As

Publication number Publication date
ES2096825T3 (es) 1997-03-16
EP0589423A1 (en) 1994-03-30
ITTO920780A1 (it) 1994-03-22
IT1257394B (it) 1996-01-15
DE69306211T2 (de) 1997-06-19
ITTO920780A0 (it) 1992-09-22
DE69306211D1 (de) 1997-01-09

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