Vehicle seat assembly having a hardness gradient
First Claim
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1. A vehicle seat assembly comprising:
- a cushion having a top surface, a bottom surface, spaced from the top surface, a left side outer surface and a right side outer surface, with each outer surface extending between and connecting the top and bottom surfaces, the cushion further having a central portion extending between the top and bottom surfaces, and two bolster areas extending between the top and bottom surfaces, with each bolster area being laterally spaced from each other and laterally adjacent to opposed sides of the central portion such that the central portion extends laterally between the two bolster areas and the bolster areas each including a respective one of the outer surfaces, the central portion having at least one recess therein, the cushion having a hardness gradient between at least one of the bolster areas and the central portion of between 8% to 25% and the cushion having a hysteresis loss gradient between at least one of the bolster areas and the central portion of at least 8%, and wherein the at least one bolster areas has a hardness that is at least 8% to 25% greater than the hardness of the central portion and wherein hardness is a resistance measurement and hysteresis loss is a recovery measurement.
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Abstract
In at least one embodiment, the present invention provides a vehicle seat assembly comprising a cushion having an “A” surface and a “B” surface, a central portion, and two bolster areas, with each bolster area being adjacent the central portion, with the cushion having a hardness gradient between at least one of the bolster areas and the central portion of between 8% to 25%.
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Citations
20 Claims
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1. A vehicle seat assembly comprising:
a cushion having a top surface, a bottom surface, spaced from the top surface, a left side outer surface and a right side outer surface, with each outer surface extending between and connecting the top and bottom surfaces, the cushion further having a central portion extending between the top and bottom surfaces, and two bolster areas extending between the top and bottom surfaces, with each bolster area being laterally spaced from each other and laterally adjacent to opposed sides of the central portion such that the central portion extends laterally between the two bolster areas and the bolster areas each including a respective one of the outer surfaces, the central portion having at least one recess therein, the cushion having a hardness gradient between at least one of the bolster areas and the central portion of between 8% to 25% and the cushion having a hysteresis loss gradient between at least one of the bolster areas and the central portion of at least 8%, and wherein the at least one bolster areas has a hardness that is at least 8% to 25% greater than the hardness of the central portion and wherein hardness is a resistance measurement and hysteresis loss is a recovery measurement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A vehicle seat assembly comprising:
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a seat frame; and a cushion supported on the seat frame, the cushion having a top surface facing away from the seat frame and a bottom surface spaced below the top surface and facing the seat frame, a central portion having at least one discontinuity on the bottom surface affecting the hardness of the cushion, and a first bolster area adjacent the central portion and forming an outer side surface of the cushion, wherein the cushion has a hardness gradient between the bolster area and the central portion of between 8% to 25% and the cushion having a hysteresis loss gradient between the bolster area and the central portion of at least 8%, wherein the hysteresis loss gradient is different from the hardness gradient, and wherein the bolster area has a hardness that is at least 8% to 25% greater than the hardness of the central portion and wherein hardness is a resistance measurement and hysteresis loss is a recovery measurement. - View Dependent Claims (16, 17, 18)
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19. A vehicle seat assembly consisting of:
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a cushion having a top surface and a bottom surface, a central portion having holes extending inwardly from the bottom surface, and two bolster areas, with each bolster area being laterally spaced from each other and laterally adjacent to opposed sides of the central portion, the cushion having a hardness gradient between at least one of the bolster areas and the central portion of between 8% to 25% and the cushion having a hysteresis loss gradient between at least one of the bolster areas and the central portion is at least 8%, wherein the holes do not extend through the top surface of the cushion; a trim cover disposed over the cushion; and wherein the at least one bolster areas has a hardness that is at least 8% to 25% greater than the hardness of the central portion and wherein hardness is a resistance measurement and hysteresis loss is a recovery measurement. - View Dependent Claims (20)
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Specification