초록 ▼

An inclinable seat arrangement, in particular for a sick or handicapped occupant, is described. It comprises a framework (2) and an inclinable seat (3) connected to the framework by an articulation (4) and by a positioning mechanism arranged so as to facilitate the manipulations for inclining the se

An inclinable seat arrangement, in particular for a sick or handicapped occupant, is described. It comprises a framework (2) and an inclinable seat (3) connected to the framework by an articulation (4) and by a positioning mechanism arranged so as to facilitate the manipulations for inclining the seat by the occupant or by another person. The axis of the articulation (4) is preferably located proximate a vertical line passing through the center of gravity (G1) of the occupant when in a position corresponding to the equilibrium position of the empty seat. An elastic mechanism, exerting a progressive return couple toward the equilibrium position, comprises elastic bearings (24) within the articulation. The elastic mechanism also preferably comprises a constant force gas thrustor (6) which includes a controlled blocking arrangement. In place of the gas thrustor there may be provided a motorized jack (51) controlled by the occupant (48). The seat arrangement may be employed in stationary or wheeled chairs for the sick or handicapped.

대표청구항 ▼

[ What is claimed is:] [1.]1. An inclinable seat arrangement comprising a framework arranged to rest on the ground, a seat mounted on the framework by at least one articulation with a horizontal transverse axis so as to be inclinable in a range of inclined positions, and positioning means for stabil

[ What is claimed is:] [1.]1. An inclinable seat arrangement comprising a framework arranged to rest on the ground, a seat mounted on the framework by at least one articulation with a horizontal transverse axis so as to be inclinable in a range of inclined positions, and positioning means for stabilizing arranged so as to stabilize the seat in at least one of said positions when the seat supports the weight of the occupant,wherein said positioning means include manually controlled blocking means for blocking the inclination of the seat in every position within said range and elastic means for coupling the seat to the framework and defining a no-load equilibrium position when the seat is not occupied, the elastic means being arranged to exert a return couple on the seat toward the no-load equilibrium position whenever the seat occupies a position different from the equilibrium position, the return couple increasing as the seat is moved away from said equilibrium position, andwherein said elastic means comprise at least one elastic bearing forming said articulation and including rubber elements arranged to produce at least a part of said return couple, and wherein said elastic means further comprise a gas thrustor arranged to exert a force between the framework and the seat at a distance from the articulation axis, said force being substantially constant at least when the blocking means are unblocked.