Giroflex-entwicklungs-ag

Shin Yeh Enterprise Co., Ltd.

Andras Dozsa-Farkas

Chair

An adjustable armrest assembly for a chair includes an elongated connector and an elongated armrest member. The elongated connector is mounted securely on the seat and has two opposite side surfaces formed with a respective open-ended horizontal slide slot. The slots are aligned with each other. The elongated armrest member has a horizontal top wall, and two generally L-shaped guide bodies disposed on two opposite side portions of the top wall. Each of the guide bodies includes a vertical plate portion secured to the bottom surface of the top wall at the top end portion thereof, and a horizontal plate portion connected securely to the vertical plate portion. The horizontal plate portions are respectively and slidably engaged within the slide slots of the connector so that the armrest member can be moved on the connector.

Adjustable armrest assembly for a chair

A chair includes a movable base, a first pneumatic cylinder, a support frame, a pivot frame, an elongated spring plate unit, and a second pneumatic cylinder. The first pneumatic cylinder is mounted uprightly on the movable base. The support frame has an upright sleeve which is sleeved rotatably on a top end of the first pneumatic cylinder, an arm plate which extends forwardly from a top end of the sleeve, and parallel front and rear shafts which are mounted transversely on the arm plate. The pivot frame has a front end that is mounted pivotally on the rear shaft and further has a seat and a backrest fixed thereon. The spring plate unit has a rear end portion which is mounted on the front end of the pivot frame and a front end portion which extends underneath and abuts with the front shaft. The second pneumatic cylinder is connected to a bottom end of the support frame and to a rear end of the pivot frame, and is operable so as to vary a length thereof in order to cause pivoting movement of the pivot frame and permit retaining of the seat and the backrest at desired inclined positions.

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Munich, Germany

Andras Dozsa-Farkas