Dynamically balanced seat assembly having independently and arcuately movable seat and backrest and method
First Claim
1. A seat assembly comprising:
- (a) a seat;
(b) a backrest; and
(c) a mounting assembly mounting said seat in a near horizontal orientation for movement along an upwardly concaved arcuate seat path having a center of curvature proximate the center of mass of a person seated on said seat, said mounting assembly further mounting said backrest in a near vertical orientation for movement independently of said seat along a forwardly concaved arcuate back path having a center of curvature proximate the center of mass of the person seated on said seat.
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Accused Products
Abstract
A seat assembly (21) including a seat (22), a backrest (23) and a mounting assembly (24) mounting the seat (22) in a near horizontal orientation for movement along an upwardly concaved arcuate seat path having a center of curvature (37) proximate the center of mass (39) of a person seated on the seat, and the mounting assembly (24) further mounting the backrest (23) in a near vertical orientation for movement independently of the seat along a forwardly concaved arcuate path having a center curvature (37) proximate the center of mass (39) of the person. An adjustment assembly (61) is provided for adjusting the radius of curvature of the path of motion of the backrest (23). Also provided are a backrest tilt adjustment assembly (71), an armrest adjustment assembly (90), a seat biasing assembly (110) and a seat motion latching assembly (111). A method of self-adjusting support and alignment of a backrest also is disclosed.
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Citations
25 Claims
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1. A seat assembly comprising:
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(a) a seat;
(b) a backrest; and
(c) a mounting assembly mounting said seat in a near horizontal orientation for movement along an upwardly concaved arcuate seat path having a center of curvature proximate the center of mass of a person seated on said seat, said mounting assembly further mounting said backrest in a near vertical orientation for movement independently of said seat along a forwardly concaved arcuate back path having a center of curvature proximate the center of mass of the person seated on said seat. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of self-adjusting support and alignment of a backrest of a seating assembly and the user seated thereof, comprising the steps of:
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mounting a seat to rotate about an axis positioned proximate a person'"'"'s center of mass while seated on the seat; and
mounting a backrest to rotate independently of the seat about an axis positioned proximate a person'"'"'s center of mass while seated on the seat. - View Dependent Claims (24, 25)
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Specification