Collapsible lift mechanism for H-point lift
First Claim
1. A seat cushion comprising a front edge and a rear edge and inclined downwardly in a rearward direction when in a first seating position, a lift arm disposed below the seat cushion and in physical contact with a lower surface of the seat cushion, wherein the lift arm is coterminous with a plane of the lower surface of the seat cushion and thereby operably coupled to the rear edge of the seat cushion, a support arm having a distal end thereof pivotally coupled to a distal end of the lift arm proximate the front edge of the seat cushion, a linkage arm pivotably coupled with the lift arm at a distal end thereof and a slot in the support arm at a proximal end thereof, and a translational arm coupled with the linkage arm, wherein the lift arm raises the rear edge of the seat cushion relative the front edge of the seat cushion in a second seating position as the translational arm is displaced relative the support arm.
1 Assignment
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Accused Products
Abstract
A seat assembly forms a substantially horizontal plane for an exposed surface of each of a lower seat cushion and a seatback cushion of a seatback. The seat assembly comprises a lifter mechanism for a rearward edge of the lower seat cushion. The lifter mechanism further comprises a main lift arm coupled to the edge, a slotted support arm having a distal end thereof pivotally coupled to a distal end of the main lift arm, a linkage arm pivotably coupled with the main lift arm and a slot in the slotted support arm, and a translational arm coupled with the linkage arm. The rearward edge of the lower seat cushion is raised by the translational arm being displaced to a fully displaced position to thereby raise a distal end of the linkage arm and the lift arm.
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Citations
20 Claims
- 1. A seat cushion comprising a front edge and a rear edge and inclined downwardly in a rearward direction when in a first seating position, a lift arm disposed below the seat cushion and in physical contact with a lower surface of the seat cushion, wherein the lift arm is coterminous with a plane of the lower surface of the seat cushion and thereby operably coupled to the rear edge of the seat cushion, a support arm having a distal end thereof pivotally coupled to a distal end of the lift arm proximate the front edge of the seat cushion, a linkage arm pivotably coupled with the lift arm at a distal end thereof and a slot in the support arm at a proximal end thereof, and a translational arm coupled with the linkage arm, wherein the lift arm raises the rear edge of the seat cushion relative the front edge of the seat cushion in a second seating position as the translational arm is displaced relative the support arm.
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14. A seating assembly for a motor vehicle comprising:
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a lower seating structure further comprising a forward seat pan, a pair of opposed lateral lower seat frame members having forward and rearward ends attached to opposed lateral edges of the forward seat pan at the forward ends of the opposed lateral lower seat frame members, a pivot bar laterally extending between the rearward ends of the lateral lower seat frame members, a lower seat pivot mount disposed at the rearward end of the opposed lateral lower seat frame members, a cushion suspension system attached to the forward seat pan and adjustably supported between the pair of opposed lateral lower seat frame members, and a cushion assembly supported by the cushion suspension system, wherein a front edge of the cushion assembly is vertically higher than a rear edge of the cushion assembly in a first seating position, such that the cushion assembly inclines downwardly in a rearward direction; a seatback pivotable between an upright position and a fully reclined position operably coupled with the lower seating structure, the seatback further comprising a frame having an upper transverse cross member, a lower transverse cross member, and a pair of opposed lateral seatback frame members extending between the upper and lower transverse members, wherein each of the pair of opposed lateral seatback frame members has a seatback pivot mount at a lower portion thereof that is operably coupled with the lower seat pivot mount; and a hip lifter mechanism further comprising a main lift arm disposed below the cushion assembly and coterminous with a plane of a lower surface of the cushion suspension system and thereby operably coupled to the rear edge of the cushion assembly, a slotted support arm having a distal end thereof pivotally coupled to a distal end of the main lift arm proximate the front edge of the cushion assembly, a linkage arm pivotably coupled with the main lift arm and a slot in the slotted support arm, and a translational arm coupled with the linkage arm, wherein the main lift arm raises the rear edge of the cushion assembly relative the front edge of the cushion assembly in a second seating position as the translational arm is displaced relative the support arm. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A seat assembly forming a substantially horizontal plane for an exposed surface of each of a lower seat cushion and a seatback cushion of a seatback in a fully horizontal reclined position, the seat assembly comprising a lifter mechanism for a rear edge of the lower seat cushion, the lower seat cushion having a downwardly inclined position in a rearward direction when the seatback is in a fully upright position, the lifter mechanism further comprising a main lift arm disposed below the seat cushion coterminous with a plane of the lower surface of the lower seat cushion and thereby operably coupled to the rear edge of the lower seat cushion, a slotted support arm having a distal end thereof pivotally coupled to a distal end of the main lift arm proximate a front edge of the seat cushion, a linkage arm pivotably coupled with the main lift arm and a slot in the slotted support arm, and a translational arm coupled with the linkage arm, wherein the rear edge of the lower seat cushion is raised relative the front edge of the lower seat cushion by the translational arm being displaced to a fully displaced position to thereby raise a distal end of the linkage arm and the main lift arm and thereby displace the lower seat cushion from the downwardly inclined position to the fully horizontal reclined position.
Specification