EP1017915A1 - Electric central-locking actuator for a vehicle - Google Patents

Electric central-locking actuator for a vehicle

Info

Publication number
EP1017915A1
EP1017915A1 EP98944148A EP98944148A EP1017915A1 EP 1017915 A1 EP1017915 A1 EP 1017915A1 EP 98944148 A EP98944148 A EP 98944148A EP 98944148 A EP98944148 A EP 98944148A EP 1017915 A1 EP1017915 A1 EP 1017915A1
Authority
EP
European Patent Office
Prior art keywords
carriage
pinion
central
locking
actuator
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.)
Withdrawn
Application number
EP98944148A
Other languages
German (de)
French (fr)
Inventor
Philippe Ottolini
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.)
Inteva Products France SAS
Original Assignee
Meritor Light Vehicle Systems France
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 Meritor Light Vehicle Systems France filed Critical Meritor Light Vehicle Systems France
Publication of EP1017915A1 publication Critical patent/EP1017915A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • 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
    • 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
    • E05B77/42—Means for damping the movement of lock parts, e.g. slowing down the return movement of a handle
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters

Definitions

  • the present invention relates to an electric central- locking actuator for a vehicle lock.
  • This actuator consists of a casing containing an electric motor, a reversible screw coupled with an output pinion of the motor which can be driven in rotation by the latter, a nut through which the screw passes, locked in rotation, which can drive a carriage in translation by resilient means, as well as a central-locking return lever coupled with the carriage.
  • these actuators use motors with very high rotation speeds. These motors therefore generate rapid internal movements in the actuators, which produce impact noise when the carriage reaches the end of its movement.
  • the objective of this invention is to limit this impact noise.
  • the carriage is fitted with braking means to reduce impact noise incurred by the travel of the carriage.
  • said braking means consist of a rack fixed to the side of the carriage and a pinion-brake, secured to the casing, which co-operates with the rack.
  • FIG. 1 The single drawing is a perspective view, essentially to scale, of one embodiment of the electric central-locking actuator as proposed by the invention.
  • the electric central-locking actuator illustrated in the drawing is designed for use with a vehicle lock, not illustrated, to provide central locking or unlocking thereof in its latched position.
  • This actuator 1 consists of a casing made of two half- shells in a plastics material, one of which, forming a cover plate 2, is illustrated.
  • This cover plate 2 contains an electric motor 3, the output shaft of which is fitted with a pinion 4, and a reversible screw 5 fitted with a gear 6 coupled with the pinion 4, the rotation of which will in turn rotate the screw 5 about its axis.
  • the actuator also has a nut 7 through which the screw 5 passes, which is prevented from rotating by the side walls of a carriage 8 in which is it disposed and which contains the reversible screw 5.
  • a nut 7 is arranged on each end of the screw 7 are resilient means consisting of helical springs 9, 11 respectively, coaxial with the screw 5.
  • the end of the carriage 8 is pivotally mounted on a return lever 12, provided with a toothed portion 13 which co-operates in a known manner with a central-locking lever, not illustrated.
  • the carriage 8 is provided with a rack 14 secured to the side of the carriage, on the side thereof opposite to the electric motor 3.
  • the toothing of the rack 14 meshes with a pinion 15 of a pinion-brake 16, consisting in a known manner of a viscous coupling device.
  • the pinion-brake 16 is fixed to the cover plate 2 by means of side tabs 10, in an appropriate manner, for example screws.
  • This pinion-brake consists of a pinion 15 rotatably mounted about a shaft 17.
  • the actuator described above operates in the following manner.
  • the motor 3 drives its pinion 4 in rotation, which in turn drives the gear 6 and the screw 5 in rotation.
  • the rack 14 and pinion-brake 16 system may be replaced by any other equivalent means that will provide braking for the carriage.

Abstract

An electric central-locking actuator for a vehicle lock, consisting of a casing (2) containing an electric motor (3), a reversible screw (5) coupled with an output pinion (4) of the motor which can be driven in rotation by the latter, a nut (7) through which the screw passes, locked against rotation and which can drive a carriage in translation by springs (9, 11), and a central-locking return lever (12) coupled with the carriage, characterised in that the carriage is fitted with a rack (14) and pinion brake (16) to reduce the impact of noise incurred by the travel of the carriage.

Description

Electric central-locking actuator for a vehicle
The present invention relates to an electric central- locking actuator for a vehicle lock.
This actuator consists of a casing containing an electric motor, a reversible screw coupled with an output pinion of the motor which can be driven in rotation by the latter, a nut through which the screw passes, locked in rotation, which can drive a carriage in translation by resilient means, as well as a central-locking return lever coupled with the carriage.
These central-locking actuators, which are reversible or can be declutched, are fitted onto the corresponding lock.
In general, these actuators use motors with very high rotation speeds. These motors therefore generate rapid internal movements in the actuators, which produce impact noise when the carriage reaches the end of its movement.
The objective of this invention is to limit this impact noise.
In accordance with the invention, the carriage is fitted with braking means to reduce impact noise incurred by the travel of the carriage.
By virtue of one advantageous embodiment, said braking means consist of a rack fixed to the side of the carriage and a pinion-brake, secured to the casing, which co-operates with the rack.
Consequently, when the nut compresses the resilient means to drive the carriage, the rack drives the pinion of the brake- pinon in rotation, which opposes a torque resisting the displacement of the carriage.
The invention will now be described with reference to the appended drawing illustrating one embodiment, which is given by way of example and is not restrictive in any respect.
- Fig. 1 - The single drawing is a perspective view, essentially to scale, of one embodiment of the electric central-locking actuator as proposed by the invention.
The electric central-locking actuator illustrated in the drawing is designed for use with a vehicle lock, not illustrated, to provide central locking or unlocking thereof in its latched position.
This actuator 1 consists of a casing made of two half- shells in a plastics material, one of which, forming a cover plate 2, is illustrated. This cover plate 2 contains an electric motor 3, the output shaft of which is fitted with a pinion 4, and a reversible screw 5 fitted with a gear 6 coupled with the pinion 4, the rotation of which will in turn rotate the screw 5 about its axis.
The actuator also has a nut 7 through which the screw 5 passes, which is prevented from rotating by the side walls of a carriage 8 in which is it disposed and which contains the reversible screw 5. Arranged on each end of the screw 7 are resilient means consisting of helical springs 9, 11 respectively, coaxial with the screw 5.
The end of the carriage 8 is pivotally mounted on a return lever 12, provided with a toothed portion 13 which co-operates in a known manner with a central-locking lever, not illustrated.
The carriage 8 is provided with a rack 14 secured to the side of the carriage, on the side thereof opposite to the electric motor 3. The toothing of the rack 14 meshes with a pinion 15 of a pinion-brake 16, consisting in a known manner of a viscous coupling device. The pinion-brake 16 is fixed to the cover plate 2 by means of side tabs 10, in an appropriate manner, for example screws. This pinion-brake consists of a pinion 15 rotatably mounted about a shaft 17.
The actuator described above operates in the following manner.
When a power supply is applied to the actuator, the motor 3 drives its pinion 4 in rotation, which in turn drives the gear 6 and the screw 5 in rotation.
The rotation of this latter displaces the nut 7 in translation in the carriage 8. The nut 7 compresses one of the two springs 9 and 11, depending on the direction of rotation of the motor and the screw 5. At the end of compression, the spring 9 or 11 then drives the pinion 15 of the brake-pinion 16 in rotation, which opposes a braking torque resisting translation of the carriage 8.
The opposition to the displacement of the carriage 8 reduces its displacement speed in both directions. Due to this reduced displacement speed, the impact noise that would normally be generated by the halt in the movement of the carriage 8 and the carriage return 12 is reduced to a minimum.
In one embodiment, the rack 14 and pinion-brake 16 system may be replaced by any other equivalent means that will provide braking for the carriage. GLOSSARY
1 = actuator
2 = cover plate
3 = electric motor
4 = pinion
5 = reversible screw
6 = gear
7 = nut
8 = carriage 9, 11 = helical spring
12 = central-locking return lever
13 = toothed portion
14 = rack
15 = pinion of the pinion-brake
16 = pinion brake
17 = shaft

Claims

1. An electric central-locking actuator for a vehicle lock, consisting of a casing (2) containing an electric motor (3), a reversible screw (5) coupled with an output pinion (4) of the motor which can be driven in rotation by the latter, a nut (7) through which the screw passes, locked against rotation and which can drive a carriage in translation by resilient means (9, 11), and a central-locking return lever (12) coupled with the carriage, characterised in that the carriage is fitted with braking means (14, 16) to reduce the impact noise incurred by the travel of the carriage.
2. An actuator as claimed in claim 1, characterised in that said braking means consist of a rack (14) fixed to the side of the carriage (8) and a pinion-brake (16) secured to the casing (2), which meshes with the rack.
3. An electric central-locking actuator substantially as described herein and/or as shown in figure 1.
EP98944148A 1997-09-22 1998-09-21 Electric central-locking actuator for a vehicle Withdrawn EP1017915A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9711769A FR2768869B1 (en) 1997-09-22 1997-09-22 ELECTRICAL CONDEMNATION ACTUATOR FOR VEHICLE LOCK
FR9711769 1997-09-22
PCT/IB1998/001515 WO1999015748A1 (en) 1997-09-22 1998-09-21 Electric central-locking actuator for a vehicle

Publications (1)

Publication Number Publication Date
EP1017915A1 true EP1017915A1 (en) 2000-07-12

Family

ID=9511332

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98944148A Withdrawn EP1017915A1 (en) 1997-09-22 1998-09-21 Electric central-locking actuator for a vehicle

Country Status (6)

Country Link
EP (1) EP1017915A1 (en)
JP (1) JP2001517747A (en)
KR (1) KR20010030647A (en)
AU (1) AU9180798A (en)
FR (1) FR2768869B1 (en)
WO (1) WO1999015748A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007216304A (en) * 2007-06-06 2007-08-30 Aida Eng Ltd Driving device for machine press
JP5999912B2 (en) * 2012-02-04 2016-09-28 株式会社ＷＥＳＴ ｉｎｘ Electric lock
DE102013008550A1 (en) * 2013-05-16 2014-11-20 Huf Hülsbeck & Fürst Gmbh & Co. Kg Electromechanical locking unit for the vehicle sector
FR3079191B1 (en) * 2018-03-21 2020-03-06 Foundation Brakes France DEVICE FOR APPLYING TWO OPPOSITE SENSE FORCES AND PARKING BRAKE SYSTEM COMPRISING SUCH A DEVICE

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8353626V0 (en) * 1983-08-03 1983-08-03 Roltra Spa CENTRALIZED DOOR LOCK DEVICE FOR VEHICLE GOALKEEPER
DE3445595A1 (en) * 1984-12-14 1986-06-19 Fichtel & Sachs Ag, 8720 Schweinfurt ACTUATING DEVICE FOR A CENTRAL LOCKING SYSTEM
DE3540686C2 (en) * 1985-11-16 1994-11-24 Teves Gmbh Alfred Device for locking doors on motor vehicles
IT1203528B (en) * 1986-01-28 1989-02-15 Setec Srl ELECTROMECHANICAL DEVICE TO CONTROL THE SAFETY LOCK AND THE OPENING OF THE VEHICLE DOOR
FR2631368B1 (en) * 1988-05-11 1990-08-24 Rockwell Cim CONDEMNATION ACTUATOR FOR LOCK, PARTICULARLY FOR MOTOR VEHICLE DOORS
DE8910738U1 (en) * 1989-09-08 1991-01-17 Fichtel & Sachs Ag, 8720 Schweinfurt, De
IT219355Z2 (en) * 1990-03-29 1993-02-22 IMPROVED DEVICE FOR THE OPERATION OF THE SAFETY OF THE DOORS OF A VEHICLE FOR CENTRALIZED CONTROL SYSTEMS

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9915748A1 *

Also Published As

Publication number Publication date
WO1999015748A1 (en) 1999-04-01
FR2768869A1 (en) 1999-03-26
KR20010030647A (en) 2001-04-16
FR2768869B1 (en) 1999-12-03
AU9180798A (en) 1999-04-12
JP2001517747A (en) 2001-10-09

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