×

Seat angle regulating apparatus

  • US 4,887,017 A
  • Filed: 10/06/1987
  • Issued: 12/12/1989
  • Est. Priority Date: 10/14/1986
  • Status: Expired due to Fees
First Claim
Patent Images

1. A seat angle regulating apparatus comprising:

  • an upper arm mounted to a seat back of a seat;

    a lower arm mounted to a seat cushion of said seat;

    an internal gear having a first set of teeth, and an external gear having a second set of teeth, said second set of teeth numbering at least one less than said first set of teeth, said internal and external gears in mesh between said upper arm and said lower arm for regulating a relative angle between said upper arm and said lower arm;

    an angle regulating unit having an eccentric shaft for rotatably supporting either of said internal gear or said external gear at a concentric portion thereof and rotatably supporting the other gear at an eccentric portion thereof and engaging said internal gear and external gear, and a motor for rotating said eccentric shaft; and

    a locking unit for engaging and disengaging said angle regulating unit to and from either of said upper arm or said lower arm and changing the relative angle between said upper arm and said lower arm independently of said angle regulating unit when said angle regulating unit is disengaged;

    said angle unit including a motor rotation control unit for controlling a forward and backward rotation range of said motor and enabling the rotation of said motor within said rotation range.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×