Side-mirror driving apparatus

• US 4,540,252 A
• Filed: 04/23/1984
• Issued: 09/10/1985
• Est. Priority Date: 02/02/1984
• Status: Expired due to Term

• Current Assignee: Nippondenso Co., Ltd. (DENSO Corporation)
• Original Assignee: Nippondenso Co., Ltd. (DENSO Corporation)
• Inventors: Hayashi, Mikio, Kawasumi, Kouzi, Kimura, Yoshinobu
• Primary Examiner(s): Henry, Jon W.
• Application Number:
  US06/602,746
• Time in Patent Office: 505 Days
• Field of Search: 350/637, 350/633, 350/634, 350/636, 350/605, 318/466, 74/479, 74/567
• US Class Current: 359/874
• CPC Class Codes: B60R 1/025 comprising special mechanical means for correcting the field of view in relation to particular driving conditions, e.g. change of lane; scanning mirrors
• CPC Class Codes: Y10T 74/20207 Multiple controlling elements for single controlled element
• CPC Class Codes: Y10T 74/2101 Cams

Abstract

A side mirror driving apparatus having a side mirror swingably attached to a housing and a driving apparatus supported by the housing. The driving apparatus includes a gear driven by an electric motor and the mirror is operatively linked with the gear by means of a lift lever so that the mirror is inclined in an up-and downward direction and/or left-and rightward direction. At a side of a rear surface of the gear, there is provided a set position stopping device, so that the mirror can be automatically returned to its initial position.

Claims

1. A side-mirror driving apparatus comprising:

a mirror driving housing;

a supporting shaft fixed to said housing;

a mirror swingably supported at a forward end of said supporting shaft; and

a driving means for inclining said mirror, wherein the driving means comprises;

at least one gear rotatably supported by said housing;

an electric motor for rotating said gear;

at least one lift lever, one end of which is swingably linked to the rear surface of said mirror and the other end of which is operatively connected to the front surface of said gear; and

a set position stopping device arranged at a side of the rear surface of said gear for stopping said gear at a desired position.

2. A side-mirror driving apparatus as set forth in claim 1, wherein said driving means comprises a ring-formed cam at the front surface of said gear,

said lift lever is axially slidably supported by said housing, and

said other end of said lift lever is abutting on said cam.

3. A side-mirror driving apparatus comprising:

a mirror housing;

a supporting shaft fixed to said mirror housing;

a mirror swingably supported at a forward end of said supporting shaft; and

a driving means for inclining said mirror, wherein said driving means comprises;

a first and a second gears rotatably supported by said mirror housing;

a first and a second electric motors for independently driving said first and second gears;

a first and a second lift levers, each one end of which is swingably linked to the front surface of said first and second gears and each of the other ends of which is swingably linked to a predetermined position at the rear surface of said mirror; and

a first and a second set position stopping devices arranged at the respective rear surfaces of said first and second gears for stopping said first and second gears at their initial positions.

4. A side-mirror driving apparatus as set forth in claim 3 further comprising:

a mirror-rotation preventing pin axially slidably supported by said mirror housing, one end of which is swingably secured to a predetermined position at the rear surface of said mirror.

5. A side-mirror driving apparatus as set forth in claim 3, wherein said set position stopping device comprises:

an electrically-conductive ring secured to the rear surface of one of said gears and having a notch at a portion thereof;

a first brush spring secured to said housing and always in contact with said ring; and

a second brush spring in alternate contact with said ring and said notch.

6. A side-mirror driving apparatus as set forth in claim 5, further comprising:

another gear arranged coaxially with and at the rear surface side of one of said gears; and

another electric motor for driving said another gear, wherein said second brush spring is secured to said another gear.