SEAT BACKREST HAVING AN ADJUSTABLE LUMBAR SUPPORT

申请公布号：CA1190467(A)

申请号：CA19820396104

申请日期：1982.02.11

申请公布日期：1985.07.16

申请人：

LEAR SIEGLER, INC. GENERAL SEATING DIVISION

发明人：MURPHY, RANDALL T.;HELING, DENNIS H.

分类号：A47C7/46;B60N2/66

主分类号：A47C7/46

摘要：SEAT BACKREST HAVING AN ADJUSTABLE LUMBAR SUPPORT A seat backrest having an adjustable lumbar support is provided wherein the cam surface of a rotatable cam of a regulating mechanism, which adjusts the lumbar support, is effectively utilized to facilitate manual adjustment of the lumbar support. Rotation of the cam in a first direction cams a follower away from the axis of rotation of the cam. The follower causes an attached bar to rotate therewith. A lumbar support plate is supported by a cantilevered resilient or rigid element in the form of a leaf spring which is supported by the bar.

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