Dynamic seating device

A - Human Necessities – 47 – C

Patent

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Details

A47C 9/00 (2006.01) A47C 3/027 (2006.01)

Patent

CA 2550837

The invention relates to a dynamic seating device comprising a seat plate (1) which is mounted on a base comprising a height-adjustable support (14), or on a bearing surface by means of a bearing head (5). The seat plate (1) comprises a recess which extends from the upper side thereof in a direction of the lower side thereof and which is arranged in the centre of said seat plate thus enabling the user to be displaced in an automatic, natural, and free manner. A bearing shell (19) is guided through the recess (8), from below, into the seat plate (1) and is secured. The bearing shell (19) is arranged on the bearing head (5) of a center pin support (6) and the bearing head (5) has a spherical or hemispherical shape such that a common rotational and pivotable point forms above the seat plate (1).

L'invention concerne un siège dynamique comportant une plaque d'assise (1) montée au moyen d'une tête d'appui (5) sur un support comportant une colonne (14) réglable en hauteur ou sur une surface d'appui. L'objectif de l'invention est de permettre à l'utilisateur d'effectuer automatiquement des mouvements naturels tout en lui assurant une liberté de mouvement. A cet effet, la plaque d'assise (1) présente un évidement (8) situé en son centre et s'élargissant à partir de son côté supérieur en direction de son côté inférieur. De plus, une coquille de coussinet (19) est introduite par le bas à travers l'évidement (8) ménagé dans la plaque d'assise (1) et y est fixée. Cette coquille de coussinet (19) repose sur la tête d'appui (5) d'une tige de support (6). Cette tête d'appui (5) présente une forme sphérique ou hémisphérique de sorte qu'un centre de rotation et de pivotement commun soit formé au-dessus de la plaque d'assise (1).

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