(19)
(11) EP 0 026 668 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
09.09.1981 Bulletin 1981/36

(43) Date of publication A2:
08.04.1981 Bulletin 1981/14

(21) Application number: 80303435

(22) Date of filing: 29.09.1980
(84) Designated Contracting States:
DE FR GB IT SE

(30) Priority: 28.09.1979 US 79861
19.02.1980 US 122152

(71) Applicant: UOP INC.
 ()

(72) Inventors:
  • Arndt, Otto Harold
     ()
  • Wilton, William Leonard
     ()
  • Gregory, Leslie Albert
     ()

   


(54) Seat backrest having an adjustable lumbar support


(57) A seat backrest having a contourable upholstered portion (not shown) supported by a rigid frame portion (116) includes means to produce a desired supporting contour in the lumbar region of the seat occupant. The contour-producing means includes a lumbar pad (122), a pair of link members (124) connecting the lumbar pad to the frame, and a double threaded shaft means (126) operable via a knob (128) by a seated occupant from the side of the backrest for moving and holding the link members in an infinite number of fixed positions forward of the frame. A second knob (130) allows the occupant to adjust the rake of the pad (122).






Search report