Seat and lumbar motion chair, assembly and method
First Claim
1. A seat and lumbar motion chair assembly comprising:
- a back support;
back support mounting assembly coupled to said back support and mounting said back support in a stationary position in a generally vertical orientation relative to a support surface;
a seat;
seat mounting assembly coupled to said seat and mounting said seat to said mounting assembly proximate said back support in a generally horizontal orientation relative to said support surface for guided fore and aft movement of said seat along a continuous arcuate path; and
a lumbar support coupled proximate its lower end to said seat for movement of said lower end of said lumbar support in said fore and aft movement with said seat, said lumbar support being pivotally coupled proximate its top end to said back support said back support remaining in its stationary position during movement of said lumbar support, whereby a buttocks and lumbar region of a user seated in said chair assembly will remain supported in substantial contact with both said seat and said lumbar support during rapid fore and aft motion of said seat.
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Accused Products
Abstract
A seat and lumbar motion chair having a lumbar support assembly which is coupled to the seat and a mounting assembly mounting the seat and the lower end of the lumbar support for movement in a generally horizontal orientation in fore and aft directions. Movement of the seat is along an upwardly tilting path having a compound radius of curvature centered proximate to the mass of a person seated on the seat. The lumbar support mounting assembly is movable at two points, namely, in the fore and aft direction at the rear of the seat and pivotally at the back support. The seating apparatus further includes a back support positioned to engage the person'"'"'s upper back in the thoracic region. A method including the steps of employing a seat and lumbar support assembly mounted for movement relative to the back support along a fore and aft direction to maintain contact between the person'"'"'s buttocks with the seat and contact of the lower back with the lumbar support during motion of the person'"'"'s body. The chair can employ a shock absorber device to control seat motion, a seat pan formed with a pelvic cradle pocket, pummel and side bolsters, a seat pan safety net, specialized seat belts, and apparatus for selective adjustment of the reclining angle between said back support and the seat.
123 Citations
14 Claims
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1. A seat and lumbar motion chair assembly comprising:
- a back support;
back support mounting assembly coupled to said back support and mounting said back support in a stationary position in a generally vertical orientation relative to a support surface;
a seat;
seat mounting assembly coupled to said seat and mounting said seat to said mounting assembly proximate said back support in a generally horizontal orientation relative to said support surface for guided fore and aft movement of said seat along a continuous arcuate path; and
a lumbar support coupled proximate its lower end to said seat for movement of said lower end of said lumbar support in said fore and aft movement with said seat, said lumbar support being pivotally coupled proximate its top end to said back support said back support remaining in its stationary position during movement of said lumbar support, whereby a buttocks and lumbar region of a user seated in said chair assembly will remain supported in substantial contact with both said seat and said lumbar support during rapid fore and aft motion of said seat. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- a back support;
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8. A seating apparatus for humans comprising:
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a. a seat; b. a seat mounting assembly mounting said seat in a near horizontal orientation relative to a support surface for a movement of said seat along an upwardly arcuate path; c. a back support mounted in a stationary generally vertical orientation proximate said seat; and d. a lumbar support pivotally mounted to said back support proximate one end of said lumbar support and coupled to said seat proximate another end of said lumbar support for movement of said another end in a fore and aft direction and pivoting of said one end in response to movement of said seat in a fore and aft direction along said path said back support remaining in its stationary vertical orientation during movement of said lumbar support. - View Dependent Claims (9)
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10. A method of reducing injury to a person seated in a seat of a vehicle during stopping of said vehicle at a high rate of deceleration comprising the steps of:
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mounting a seat in said vehicle for movement in a direction oriented substantially parallel to a fore-aft axis of said vehicle along an upwardly arcuate path mounting a back support in a stationary, near vertical orientation proximate said seat; pivotally coupling an upper portion of a lumbar support member to said support; and coupling a lower portion of said lumbar support member to said seat for movement with said seat. - View Dependent Claims (11, 12, 13, 14)
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Specification