Chairs and seats – Bottom or back with means to alter contour
Patent
1988-01-22
1989-05-16
McCall, James T.
Chairs and seats
Bottom or back with means to alter contour
297 61, A47C 300
Patent
active
048304298
ABSTRACT:
The present invention relates to an operating device for a seat, an armchair or a couch, where the angle between the base (3) and the back(4) can be modified, so that the user can move from a sitting position to a position of relaxation, merely through the action of his body. The invention provides a retractable supporting means for the small of the back comprised of a flap (10) pivoting around an axis (11) and of a support (32) with a roller (33), integral with the base, and capable of positioning the retractable supporting means for the small of the back by pivoting the flap as the displacement of hte user's body proceeds.
REFERENCES:
patent: 3880462 (1975-04-01), Mednick
patent: 4040661 (1977-08-01), Hogan et al.
patent: 4313637 (1982-02-01), Barley
patent: 4691961 (1987-09-01), Rogers et al.
McCall James T.
Meller Michael N.
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