Seat cushion member with local stress relief for sitting comfort
AssigneeGM Global Technology Operations LLC
InventorsNilesh D. Mankame, Wonhee Michael Kim, Paul W. Alexander, Paul E. Krajewski
Life of this patent
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Abstract
A seat cushion member for relieving local pressure concentrations of an occupant is provided. The seat cushion member includes a seat suspension, a backing foam layer disposed on the seat suspension, a feature layer disposed on the backing foam layer, a topper foam layer disposed on the feature layer, and a trim layer disposed on the topper foam layer. The feature layer has multiple features, and at least some of the multiple features undergo a limit point traversal when the seat cushion member is occupied.
Claims18
A seat cushion member for relieving local pressure concentrations of an occupant, comprising:
- a seat suspension;
- a backing foam layer disposed on the seat suspension;
- a feature layer disposed on the backing foam layer, wherein the feature layer has multiple features, and wherein at least some of the multiple features undergo a limit point traversal when the seat cushion member is occupied;
- a topper foam layer disposed on the feature layer, wherein nondisplaced features extend into the topper foam layer;
- and
- a trim layer disposed on the topper foam layer.
A seat in a vehicle for relieving local pressure concentrations of an occupant, comprising:
- at least one of a seat cushion or a seat back, the at least one of the seat cushion or the seat back including a cushion housing for receiving the occupant, wherein the cushion housing has an exterior surface for receiving the occupant, and wherein the cushion housing is arranged to be deformable and sealable;
- and
- a seat cushion member disposed within the cushion housing, the seat cushion member including:
- a seat suspension;
- a backing foam layer disposed on the seat suspension, wherein the backing foam layer includes a plurality of dimples;
- a feature layer disposed on the backing foam layer, wherein the feature layer has multiple features, and wherein at least some of the multiple features undergo a limit point traversal when the seat cushion member is occupied, wherein the features correspond with the plurality of dimples;
- a topper foam layer disposed on the feature layer, wherein nondisplaced features of the feature layer extend into the topper foam layer;
- and
- a trim layer disposed on the topper foam layer.
A seat in a vehicle for relieving local pressure concentrations of an occupant, comprising:
- a seat cushion, the seat cushion including a cushion housing for receiving the occupant, wherein the cushion housing has an exterior surface for receiving the occupant, and wherein the cushion housing is arranged to be deformable and sealable;
- and
- a seat cushion member disposed within the cushion housing, the seat cushion member including:
- a seat suspension;
- a backing foam layer disposed on the seat suspension, the backing foam layer including a plurality of dimples;
- a feature layer disposed on the backing foam layer, wherein the feature layer has a set of first features and a set of second features, wherein the first features and the second features correspond with the plurality of dimples, and wherein at least some of the first features and the second features are configured to undergo a limit point traversal when the seat cushion member is occupied;
- a topper foam layer disposed on the feature layer, wherein nondisplaced features extend into the topper foam layer;
- and
- a trim layer disposed on the topper foam layer.
Dependencies are inferred from the claim text.