Power seat lift arrangement for automotive seat with compact construction enabling lowering of hip point
First Claim
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1. An adjustable automotive seat arrangement including a seat cushion and a seat back comprising:
- a seat slide mechanism associated with said seat cushion for permitting axial shifting in forward and rearward directions, said seat slide mechanism including a seat slide rail structure having a stationary rail secured to a vehicular body structural member and a movable rail slidingly engaged with said stationary rail and secured to a structural member of said seat cushion, said movable rail being associated with a first driving means for driving said movable rail relative to said stationary rail;
a seat lifter mechanism associated with said seat cushion for adjusting the height position of said seat cushion, said seat lifter mechanism including a stationary framework connected to a seat cushion frame of said seat cushion via a link mechanism, said seat lifter mechanism including a second driving means associated with said link mechanism for driving the link mechanism for causing vertical movement of said seat cushion frame relative to said stationary framework;
said second driving means being mounted on said movable rail of said seat slide; and
all drive means being placed in an essentially triangular space defined between the seat frame and the seat slide rail structure and arranged along the side of the seat with concentration of said drive means at one side thereof for allowing said seat cushion to be satisfactorily lowered.
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Abstract
A power seat lifter arrangement has a drive mechanism for driving a seat cushion for adjustment of the height level, which drive mechanism is mounted on an upper rail of a seat slide. The drive mechanism is separated into two parts, one is for adjusting the height level at the front portion of the seat cushion, and the other is for adjusting the height level at the rear portion of the seat cushion.
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Citations
11 Claims
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1. An adjustable automotive seat arrangement including a seat cushion and a seat back comprising:
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a seat slide mechanism associated with said seat cushion for permitting axial shifting in forward and rearward directions, said seat slide mechanism including a seat slide rail structure having a stationary rail secured to a vehicular body structural member and a movable rail slidingly engaged with said stationary rail and secured to a structural member of said seat cushion, said movable rail being associated with a first driving means for driving said movable rail relative to said stationary rail; a seat lifter mechanism associated with said seat cushion for adjusting the height position of said seat cushion, said seat lifter mechanism including a stationary framework connected to a seat cushion frame of said seat cushion via a link mechanism, said seat lifter mechanism including a second driving means associated with said link mechanism for driving the link mechanism for causing vertical movement of said seat cushion frame relative to said stationary framework; said second driving means being mounted on said movable rail of said seat slide; and all drive means being placed in an essentially triangular space defined between the seat frame and the seat slide rail structure and arranged along the side of the seat with concentration of said drive means at one side thereof for allowing said seat cushion to be satisfactorily lowered. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification