Chairs and seats – Back movement resiliently opposed in operating position – Back and bottom adjust in a fixed relationship
Patent
1992-01-15
1993-12-07
Cranmer, Laurie K.
Chairs and seats
Back movement resiliently opposed in operating position
Back and bottom adjust in a fixed relationship
297301, A47C 300
Patent
active
052677770
ABSTRACT:
An ergonomic chair supported by a cantilever support arm is resiliently coupled to the support arm by a resilient transverse support bar providing laterally spaced points of support for the chair, and by a resilient longitudinally extending support bar, providing a longitudinally aligned point of support. The support bars allow for limited and controlled yielding of the seat members in fore and aft, side-to-side, and oblique directions, to encourage subtle muscular action of the user. Provision is made for adjustment of the stiffness of the latter support bar, and for fore and aft angular adjustment of the seat.
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Cranmer Laurie K.
Lavaco Industries, Inc.
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