Patents Represented by Law Firm Oldham, Oldham & Wilson LPA
  • Lumbar support device
    Patent number: 5174629
    Abstract: A lumbar support device including a generally L-shaped arm member supported rotatably upon a seat frame and a wire member of a torsion bar type, wherein one end of the arm member is operatively coupled to a drive mechanism and another end thereof is connected to one end of the wire member, wherein another end of wire member is provided with a lumbar support plate. Both arm and wire members are moved, without being projected, so that an unpleasant hard or pressing touch is avoided in the seat.
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: December 29, 1992
    Assignee: Tachi-S Co., Ltd.
    Inventor: Yoshihiro Mizushima