ELECTRIC OPENING/CLOSING DEVICE FOR VEHICLE

• US 20070051046A1
• Filed: 09/06/2006
• Published: 03/08/2007
• Est. Priority Date: 09/07/2005
• Status: Active Grant

• Current Assignee: Mitsuba Corporation
• Original Assignee: Mitsuba Corporation
• Inventors: YOSHIDA, YASUSHI
• Granted Patent: US 7,959,204 B2
• Time in Patent Office: Days
• US Class Current: 49/345
• CPC Class Codes: E05F 15/63 operated by swinging arms
• CPC Class Codes: E05Y 2201/216 Clutches
• CPC Class Codes: E05Y 2201/246 by motors, magnets, springs or weights
• CPC Class Codes: E05Y 2201/462 Electromagnets
• CPC Class Codes: E05Y 2201/72 Planetary gearing
• CPC Class Codes: E05Y 2900/50 for vehicles
• CPC Class Codes: E05Y 2900/546 Tailgates

Abstract

An electric opening/closing device for vehicle, which has good layout characteristic of the vehicle and is provided with a highly-rigid attachment part, is provided. The vehicle electric opening/closing device comprises: a worm wheel meshed with a worm provided on a motor shaft of an electric motor; a planetary gear mechanism disposed coaxially with the worm wheel and decelerating rotation of the worm wheel to transmits it to an output gear; a gear case housing the worm wheel etc. and assembled to the electric motor; and a swing arm rotatably supported by the gear case between an output end linked to a back door and an input end linked to an output gear. An attachment plate for mounting the vehicle electric opening/closing device on the vehicle is sandwiched between the first case body and the second case body which constitute the gear case.

Claims

1. An electric opening/closing device for vehicle, in which rotation of an electric motor is decelerated and transmitted to an opening/closing member mounted in a vehicle body and opening/closing an opening portion of the vehicle, the device comprising:

a worm wheel meshed with a worm provided on a motor shaft of the electric motor;

a planetary gear mechanism disposed coaxially with the worm wheel and decelerating the rotation of the worm wheel to transmit it to a rotating member;

a gear case housing the worm wheel, the planetary gear mechanism, and the rotating member and assembled to the electric motor; and

a swing arm rotatably supported by the gear case between an input end linked to the rotating member and an output end linked to the opening/closing member and swinging in conjunction with the rotating member to move the opening/closing member for opening/closing.

2. The electric opening/closing device for vehicle according to claim 1, further comprising:

a gear part provided in the rotating member; and

a sector gear meshed with the gear part and provided in the input end of the swing arm.

3. The electric opening/closing device for vehicle according to claim 1, wherein the planetary gear mechanism is linked to the worm wheel via a power intermittent mechanism of switching to a power transmission state and a power transmission interrupted state.

4. The electric opening/closing device for vehicle according to claim 2, wherein the planetary gear mechanism is linked to the worm wheel via a power intermittent mechanism of switching to a power transmission state and a power transmission interrupted state.

5. The electric opening/closing device for vehicle according to claim 1, further comprising a linking rod linked to the output end of the swing arm and the opening/closing member and swinging in conjunction with the swing arm to move the opening/closing member for opening/closing.

6. The electric opening/closing device for vehicle according to claim 2, further comprising a linking rod linked to the output end of the swing arm and the opening/closing member and swinging in conjunction with the swing arm to move the opening/closing member for opening/closing.

7. The electric opening/closing device for vehicle according to claim 1, wherein the opening/closing member, mounted in a rear pillar of the vehicle body and mounted so as to be movable for opening/closing vertically in a rear section of the vehicle, is moved for opening/closing.

8. The electric opening/closing device for vehicle according to claim 2, wherein the opening/closing member, mounted in a rear pillar of the vehicle body and mounted so as to be movable for opening/closing vertically in a rear section of the vehicle, is moved for opening/closing.

9. An electric opening/closing device for vehicle, in which rotation of an electric motor is decelerated and transmitted to an opening/closing member mounted in a vehicle body and opening/closing an opening portion of the vehicle, the device comprising:

a worm wheel meshed with a worm provided on a motor shaft of the electric motor;

a planetary gear mechanism disposed coaxially with the worm wheel and decelerating the rotation of the worm wheel to transmit it to a rotating member;

a gear case formed by mutually assembling a first case body housing the worm wheel and a second case body housing the rotating member and the planetary gear mechanism and assembled to the electric motor; and

an attachment plate sandwiched between the first case body and the second case body,

wherein the attachment plate is fixed to the vehicle body to mount the electric opening/closing device for vehicle on the vehicle body.

10. The electric opening/closing device for vehicle according to claim 9, further comprising a swing arm rotatably supported by the gear case between an input end linked to the rotating member and an output end linked to the opening/closing member and swinging in conjunction with the rotating member to move the opening/closing member for opening/closing.

11. The electric opening/closing device for vehicle according to claim 9, further comprising:

a gear part provided in the rotating member; and

a sector gear meshed with the gear part and provided in the input end of the swing arm.

12. The electric opening/closing device for vehicle according to claim 10, further comprising:

a gear part provided in the rotating member; and

a sector gear meshed with the gear part and provided in the input end of the swing arm.

13. The electric opening/closing device for vehicle according to claim 9, wherein the planetary gear mechanism is linked to the worm wheel via a power intermittent mechanism of switching to a power transmission state and a power transmission interrupted state.

14. The electric opening/closing device for vehicle according to claim 10, wherein the planetary gear mechanism is linked to the worm wheel via a power intermittent mechanism of switching to a power transmission state and a power transmission interrupted state.

15. The electric opening/closing device for vehicle according to claim 9, further comprising a linking rod linked to the output end of the swing arm and the opening/closing member and swinging in conjunction with the swing arm to move the opening/closing member for opening/closing.

16. The electric opening/closing device for vehicle according to claim 10, further comprising a linking rod linked to the output end of the swing arm and the opening/closing member and swinging in conjunction with the swing arm to move the opening/closing member for opening/closing.

17. The electric opening/closing device for vehicle according to claim 9, wherein the opening/closing member, mounted in a rear pillar of the vehicle body and mounted so as to movable for opening/closing vertically in a rear section of the vehicle, is moved for opening/closing.

18. The electric opening/closing device for vehicle according to claim 10, wherein the opening/closing member, mounted in a rear pillar of the vehicle body and mounted so as to movable for opening/closing vertically in a rear section of the vehicle, is moved for opening/closing.