Assembly for adjusting a lumbar region of a seat

摘要

An assembly for adjusting a lumbar region of a seat having a back frame. A seat support adapted for suspension in the frame is movable between first and second lumbar positions. An actuator is operatively attached to and concurrently moves with the support, and has a chassis mount and a drive mount selectively movable therewith between first and second positions. A wire extends between longitudinal ends adapted for attachment to the frame. A first guide slidably supported along the wire is coupled to the support and to the chassis mount. A second guide slidably supported along the wire is coupled to the support and to the drive mount. Movement of the drive mount from the first position urges the guides away from each other towards the ends of the wire such that the actuator and the seat support move toward the second lumbar position as a unit.

主权项

1. An assembly for adjusting a lumbar region of a seat having a back frame, said assembly comprising:
a seat support adapted for suspension in the back frame of the seat, with said seat support movable between a first lumbar position and a second lumbar position; an actuator operatively attached to said seat support to concurrently move with said seat support between said lumbar positions, said actuator having a chassis mount and a drive mount selectively movable with respect to said chassis mount between first and second positions; a wire extending between first and second longitudinal ends with said ends adapted for attachment to the back frame of the seat; a first guide slidably supported along said wire and coupled to said seat support and to said chassis mount of said actuator; and a second guide slidably supported along said wire and coupled to said seat support and to said drive mount of said actuator; wherein movement of said drive mount of said actuator from said first position toward said second position urges said guides away from each other towards said ends of said wire such that said actuator and said seat support move from said first lumbar position toward said second lumbar position as a unit; and wherein said chassis mount is spaced from said drive mount by a first distance when in said first position, and said chassis mount is spaced from said drive mount by a second distance when in said second position with said second distance being greater than said first distance.