Reclining chair frame with adjustable seat and back rest, in...

Details Reclining chair frame with adjustable seat and back rest, in... Reclining chair frame with adjustable seat and back rest, in...

A - Human Necessities

61

G

155/41

A61G 15/00 (2006.01) A61G 15/02 (2006.01)

Patent

CA 1270179

RECLINING CHAIR FRAME with ADJUSTABLE SEAT and BACK-REST, in PARTICULAR for USE in DENTISTRY ABSTRACT of the DISCLOSURE The reclining chair frame disclosed is for use principally in dentistry, and has an adjustable seat and back-rest, the seat connecting with the base at one side, or both, by way of two struts that converge slightly toward the top ends and form an articulated quadrilateral with the seat and base. One of the struts extends upwards and is hinged to a connecting link, this hinged in turn to the back- rest at a point lower than the point at which the back-rest itself is hinged to the seat. An actuator impinges on the remaining struts rotating it about the pivot by which it is anchored to the base in such a way that the chair is maneuvered through an infinitely variable range of adjustments from a normal sitting position, with the back-rest upright, to a fully reclined position in which the back-rest is disposed substantially horizontal and the seat ultimately positioned above the level of the back- rest.

529454

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