DE7629160U1 - OFFICE CHAIR - Google Patents

Description

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'. Tilde and Spieth 73 psslingen Zeppelihstr. 126

Office chair ο

Office chair with one that can be tilted back and forth in relation to the seat plate Backrest, characterized in that its pivot axis is above the seat plate and in front of the backrest extends.

This invention was based on the prospectus of others Chair manufacturer from:

1.) The performance-demanding, fatigue-free office chair v / ird more important every day »For every workplace!

2.). Based on the latest findings in ergonomics, the Prof ο Dr. Etienne Grandjean from the Federal Technical University of Zurich has won in years of test series "

The Riickenler.ne um now also ate the swivel work chair whole back up to the shoulder blades, over the whole width <> This reduces the pressure on the intervertebral discs and reduces the back muscles when you lean back relaxed ο The profile of the backrest optimally supports the back in every posture ο

7629160 02/17/77

In the case of the chair with an adjustable backrest, the pivot point is in front the Heigemechanik arranged so that the movement curves of the backrest and the leaning back man run the same. The backrest therefore always supports the back in the same place.

The patent literature has taken into account: AS 1654 388, OS 2000 172, AS 2026 929, AS 970 295.

The subject of the invention exaggerates all the good properties of these known chairs and avoids all of their disadvantages. This ensures, for example, that the corner support of all Willingly follows movements of the working man and never lets them feel that between the human back and the back support relative movements in height take place.

The drawing shows exemplary embodiments schematically in side views

Pig 1 a chair with a swivel axis controlled by two mechanical joints and the

2 a chair with a pivot axis forced by two horns as organs of a stiff one without Load frictionally braked cradle.

7629160 02/17/77

Pig 3 illustrates a chair top similar to that of FIG Fig 1 with the difference that the two joints G are moved further backwards, during the Bar 3a the core of an armrest is “the upper part of the chair

Pig 4 is similar to Pig 2, but kinematic reversal the guide 5, 5a by means of the console 10 and the rollers 11, the latter in or «, on the edges of the Slot 12 led

7629160 02/17/77

The main parts of the two office chairs are the upholstered seat plate 1 and the upholstered backrest 2 _O

The subject of Pig 1 is the pivot axis resulting joints formed by ends 3, 4 of the arms of the seat plate and the backrest <■

The swivel axis (A) of the Pig 2 chair is. Bodyless » It is dominated by circular segments that are located below the seat plate »The circular segments of the The back supports are horns mounted on rolling elements and adjusting themselves in a pushing manner = the rolling elements are not illustrated » Not even the springs or notches that make the Assign 5 basic positions to horns. Joints can be locked or friction-locked by clamping be jammed.

The lower edge R of the backrest is at approximately the same height as the pivot axis A.

A human bone frame is reproduced in Pig 2, Consists of sit bones 6, thigh bones 7> and joints 9 »the two horns 5 and the supporting pieces 5s are one-piece flexible tubes with a circular ring-shaped profile.

7629180 02/17/77

Claims (8)

ft # Λ β O Γ Γ 6 «# Q« V ■ · · * * O II * U f J ff Γ * "" Claims: '-; * it. 1.) .Office chair with a front opposite the seat plate and reclining back support, thus recognizable . draws that see their pivot axis above the Seat plate £ i) and. In front of the backrest (. 2) extends « 2o) office chair according to claim 1, characterized in that the joints of which are formed by the ends (3, 4) of the arms of the seat plate and the backrest (Fig. 1). 3.) Office chair according to claim 1, characterized in that the frame axis is disembodied and of circular segments is dominated below the seat plate (Fig 2). 4o) office chair according to claim 3, characterized in that the circular segments of the back support are horns that are supported by rolling elements and adjust themselves by pushing " 5o) office chair according to claim 3 or 4, characterized in that that the circle segments are supported by springs. 6,) Office chair according to one of claims 1 to 5> through this characterized in that the joints can be fixed or frictionally clamped by clamping 7.) Office chair according to one of claims 1 to 6, characterized in that that the bottom edge of the backrest is approximately is at the height of the swivel axis, 7629160 02/17/77 ■■: ■, ^. ". ■. ■" », ί ,,,, ιϊ. '. ·, - ,. . ,,; ■■■ .- ^ ■ ■ ·. ■, · U ^ »I » V »Γ« * H- * ι ι * 9 s t * j t * I * I ■
HI HI »* · 8.) Office chair, in particular according to one of claims 1 "to 7" characterized in that the pivot axis (A) the back support (2) at the height of the joint centers the GTa thigh neck balls (9a) or <> the iliac crest extended 9e) office chair according to one of claims 1 to 8 characterized in that the pivot axis (A) of the back support (2) is at the level of the G-elenkmitten of the femoral neck balls (9a) or, of the Bjckenkammes and that the lower edge of the back support is approximately in half the height of these joint centers is ° 7629160 02/17/77