A - Human Necessities – 47 – C
Patent
A - Human Necessities
47
C
A47C 1/032 (2006.01) A47C 1/024 (2006.01)
Patent
CA 2699926
The invention relates to an item of seating furniture (1), in particular a working chair, the seat surface (6) of which is movable in a sliding guide (4) and connected to a frame (7) by means of a joint (14) . The seat frame (5), which is displaceable in one plane, is kinematically coupled to a frame (7) which is pivotably movable relative to the seat frame (5) and the carrying frame (2) . This frame (7) carries on the one hand a backrest (8), on the other hand also a pelvic support (9) arranged in the rear region of the seat surface (6). In order to make the pelvic support (9) run in the working position in an upwardly inclined manner in relation to the plane of the seat surface (6), a thrust bearing (13) for the frame (7) or the backrest (8), which thrust bearing allows a superimposed displacement and also pivoting movement, is arranged on the carrying element (11). The frame (7) is on the one hand supported on this thrust bearing (13), on the other hand connected, at a trailing end portion of the seat frame (5), to the seat frame by a joint (14) designed as a hinge joint, so that an inclination of the backrest out of the working position into the resting position therefore leads to an inclination and at the same time to a lowering of the backrest (8), but also to a lowering of the pelvic support (9), which is rigidly connected to the backrest (8), and forward displacement thereof. In this way, the seat surface (6) is also displaced forward on account of the kinematic coupling. In this way, various ergonomically and orthopaedically beneficial sitting positions are achieved with low mechanical complexity.
Fetherstonhaugh & Co.
Votteler Designpartner Gmbh
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