Articulated chair with weight responsive resilient means

Details Articulated chair with weight responsive resilient means Articulated chair with weight responsive resilient means

1984-07-12

1986-06-17

Lyddane, William E.

Chairs and seats

Movable bottom

Tiltable

297304, 297321, 297338, A47C 1032

Patent

active

045952361

ABSTRACT:
A chair is described which comprises a fixed base structure, a seat, an element moveable relative to the fixed structure of the chair, the moveable element being moveable from a first operative position to a second operative position as a result of a thrust exerted by the body of a seated person, and resilient means biasing the moveable element towards its first operative position. The seat of the chair has at least one part moveable substantially vertically (the movement of the moveable element being distinct from the substantially vertical movement of the moveable part of the seat). The chair also includes a resilient member for returning the moveable part of the seat to a raised position for sensing the weight of the seated person, and for adjusting automatically the load of the resilient member in dependence on the weight of the seated person.

REFERENCES:
patent: 4471994 (1984-09-01), Zund et al.
patent: 4479679 (1984-10-01), Fries et al.

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