RS20080216A - Rolling chair - Google Patents

Abstract

Invention herewith described refers to a rolling chair and has a novelty in that that it consists of a chair (1), a base (2), bearing bushes (3), plates (4) with pivots (5) and guides (6). The chair (1) is made of steel pipes, the cross-section of which is square, and the base (2) of steel pipes, the cross-section of which is rectangular and which has bearing bushes (3) positioned on top. The chair (1) is positioned on the base (2) over the pivots (5). The plate (4) with pivots (5) can move along the guide (6) whereto these are fixed by bolts (7). Guides (6) can move along the profiles (8) on the chair (1) whereto these are fixed by screws (9). Moving the plates (4) with pivots (5) and guides (6) is adjusted so that the gravity centre of the human body is slightly below the axis of the pivot (5) of the chair (1), so that the man in the chair (1) in normal position, and when he/she leans forward its centre of gravity moves and draws the chair (1) to roll. Person is secured by a chain (10), fixed to an auricle (11).