摘要:
Chair which can be adjusted to assume a variety of positions which comprises a base (10), an adjustable frame (14) supported by said base, a seat (30) and a back (31), and is characterized in that the adjustable frame (14) is swingable with respect to the base (10) and comprises telescopic arms (23, 23'), in that the seat and the back are connected to one another for angular adjustment with respect to one another, and in that the seat (30) and the back (31) are connected to said telescopic arms (23, 23'), whereby adjustment of these latter permits to vary the inclination of the seat and back.
摘要:
Der Bürostuhl (10) hat einen Sitzträger (11), einen darauf um eine horizontale Achse (17) verschwenkbaren Sitz (12) und ein elastisches Federelement (22), das zwischen dem Sitz (12) und dem Sitzträger (11) angeordnet ist. Dieses Federelement (22) ist um eine im wesentlichen senkrechte Achse (19) drehbar und so ausgebildet, daß durch ein Drehen des Federelementes (22) die örtliche Verteilung der vom Federelement (22) auf die Sitzfläche (11) ausgeübten Kraft variierbar ist. Diese einfache Mechanik erlaubt es, durch Drehen eines Hebels um etwa 90° die Rückstellkraft einzustellen, um den Stuhl an unterschiedliche Körpergewichte der Besitzer anzupassen.
摘要:
A device for moving contemporaneously the back (2) and the seat (1) of a reclining easy-chair is disclosed, having a pantograph-like system actuated by a pneumatic piston (10,11) with counter spring (15), said piston (10) being actuated by a control release lever (7).
摘要:
Office chair, with a rolling frame, joined to a telescopic column with a gas cylinder, which can be adjusted using the corresponding lever. The aforementioned telescopic column (3) is fitted to a base body (4) with longitudinal slots (7) on the front end with respective flaps (8) which shift longitudinally, and emerge from the lower side of the seat (9), which is hinged to the backrest (11), on the back end. The "L"-shaped backrest is hinged from the front end to the base body (4), with the ensemble forming a sort of deformable articulated triangle. In relation to the longitudinal slots (7) on the base body, there is also a rod (14) which shifts longitudinally passing through the flaps (8) on the seat, which is also connected to a hydraulic cylinder (15) and a spring (16) which are, in turn, connected on the other end to the base body (3), so that the hydraulic cylinder locks the relative position of the seat as regards the base body and, consequently, the inclination of the backrest, whilst the spring makes the backrest tend to return to the maximum upright position.
摘要:
An attended chair may include a recline or tilt arrangement by which gas cylinders (54,56) disposed beneath the seat (10) allow the seat back (12) to recline relative to the seat (10) or permit the seat back (12) and seat (10) to tilt as a unit relative to the frame (14). The chair has a simplified construction including a generally U-shaped, open center rigid frame spanned by a series of straps. In one version of the chair, the straps may be individually adjusted for comfort of the user. Additionally, an open-pore liner having a pocket configuration is received over the frame and straps, and, likewise, an upholstery portion is slipped over the frame in the same fashion. A rigid seat pan accommodates a customized seat cushion and cooperates with an extendable leg rest (60) that is pivotally mounted to the front edge of the seat (10). Clothing guards are provided beneath arm rests (40), which in selected embodiments may also be selectively raised and lowered relative to the frame (14) as desired.
摘要:
The present invention relates to an improved device (1) for adjusting the inclination of the backrest (4) and/or the seat (3) of chairs in general, particularly office chairs, of the type comprising a gas spring (8) and is essentially characterized in that it comprises a head (7) associable to said gas spring, a member (16) forming substantially a L shaped lever pivoted (17) to said head and comprising a first (18) and a second (19) arm and a rod (21) acting on said first arm so as to cause the rotation (F′) of said member and the consequent pushing action of said second arm on the driving shaft (10) of the valve of said gas spring in the direction of causing the opening of said valve.