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US 5,324,095 AGranted
Suspension seat
AssigneeIkeda Bussan Co., Ltd.
InventorYoshihiko Yamauchi
Life of this patent
Estimating the term…
Abstract
A suspension seat for an automotive vehicle includes a seat frame which is vertically movably supported on a parallel link mechanism having front and rear links. A compression spring and a shock absorber are coaxially combined and installed between an upper and back side portion of the seat frame and an arm portion connected to the rear link. Therefore, the suspension seat sufficiently absorbs an impact force while keeping small a space between the seat and the floor.
Claims10
A suspension seat for an automotive vehicle comprising:
- a seat frame comprising a seat cushion portion and a seat back portion;
- a parallel link mechanism supporting said seat frame such that said seat frame is vertically movable above a vehicular floor, said parallel link mechanism having a front link and a rear link which are separated from each other, the rear link having an arm portion which extends rearward of the seat frame;
- and
- a suspension unit including a compression spring and a shock absorber which are coaxially assembled, said suspension unit extending in a generally vertical direction and being connected to an upper portion of the seat back portion and to the arm portion;
- having a vertical that said suspension unit varies in direct relation to a vertical movement of said seat frame;
- and
- having a vertical height that said arm portion varies in reverse relation to the vertical movement of said seat frame.
4 more elements
A suspension seat for an automotive vehicle comprising:
- a seat frame having a seat back portion and a seat cushion portion;
- a parallel link mechanism, including front and rear links, supporting said seat frame at said seat cushion portion to be vertically movable above a vehicular floor;
- and
- a suspension unit including a compression spring and a shock absorber which are coaxially arranged so as to absorb impact force in the vertical direction, said suspension unit extending in the generally vertical direction and being connected to an upper portion of the seat back portion and to an arm portion;
- having a vertical height that said suspension unit varies in direct relation to a vertical movement of said seat frame;
- and
- having a vertical height that said arm portion varies in reverse relation to the vertical movement of said seat frame.
4 more elements
Dependencies are inferred from the claim text.