DE7030529U - SEATING WITH ADJUSTABLE BACKREST. - Google Patents

Description

DR.-ING. EUGEN MAIER

Λ Γ l · N ¹ I Λ NW Λ [

A 11 088

August 11, 1970

i - dm

Pinna Chrietof 8 to 1 1 KO 789 Waidehut

Seating furniture salt adjustable backrest

(Addition to patent "oo" _oo ., Patent application P 16 54 388o7-16)

The invention relates to seating furniture with an office backrest support, according to the main patent in a horizontal axis attached to the seat plate against the restoring force a helical spring limited pivotable rocker is arranged pivotable and vertically displaceable.

To di *! Inclination of the backrest support in relation to the seat

703052S 9/13/73

A 11 068 - 2 -

8/11/1970

i - there

need to adapt to the particular posture of the sit send Tone people of different heights and different Body weight, different forces, e.g. coaents, are exerted on the arm support «This leads dasu, that with a tall person, bits are correspondingly large " Body weight, the sun comfortable seats, the backrest has adjusted relatively high, sohon a relatively slight leaning of the surttok is sufficient, among other things, bring the backrest wearer into his position aaxlaaler incline, while a conservative small and only a low body weight person maintains aaaV Use big high force vuB, including the sauna backrest from its front and your position near the rear swivel ο

The invention is therefore sugrunde the task of adapting the leigung dos Rttokenlehnträgera to the respective posture of the seated large and small people with the same ease su make possible.

This is achieved according to the invention in a chair of the aforementioned type in that the spring force of the the swiveling back of the backrest support counteracting helical spring by means of a

A 11 088 11.8c1970 i - dm

Neten adjusting member is made adjustable.

The adjusting element advantageously consists of one with threaded shaft connected to a rotary handle, which is connected to the coil spring engaging hook carries.

The helical spring is advantageously to the vertical Center plane of the seat plate is designed symmetrically and We know a ategative, of the one with the spindle of the Adjusting member connected holding the overlapped middle part and two at their free ends from the seat plate held winding parts on o

In the drawing, an embodiment of the invention is shown in a schematic manner

Pig, 1 a vertical section through the at the seat » plate bearing-mounted device for holding the backrest support;

Figo 2 is a plan view of the underneath the seat plate = carrier arranged device according to Figo 1 «

At the bottom of the not shown seat tra ~

A 11 088 - 4 -

August 11, 1970

I do

Lowing plate 1 let the web 2 of a bracket having a reversedθθ U-Ργο-fil welded in both of its Legs 3 and 4 a rocker by means of a bearing pin 5

6 is stored. This rocker also has a U-shaped profile and has between its legs 7 and 6 a symmetrically designed leg spring 9 with helical turns 10 and 1, the free ends 12 and 13 of which are anchored in the two legs 3 and 4 against one another Schiern 14 are in contact and the other ends connected to one another form a web 15 which is overlapped by a hook 16 which is connected to the threaded shaft 17 of a rotary handle 18 _{or the like}

The legs 3 and 4 of the bracket and the legs

7 and 8 of the rocker 6 have congruent cutouts 19 through which a bolt 20 is tucked o This bolt has two teeth 21 and 22 provided, which are in the locking position of the bolt in the area of the legs 3 and 7 or "4 and S" The bolt has a handle 23.

Between the two legs 7 and 8 of the rocker 6 are two glue jaws 24 and 25 for clamping a not shown backrest nt rager a to tap an IL 26 pivotably arranged »The two Klennrbaeken - are with -

A 11 088 - 5th

11,8,1970

ί - on

pan-pressed by means of a toggle device. _T which consists of a screw bolt 27, a nut 28 Bowie and a dumbbell-shaped handle 29. The screw bolt is passed through slots 30 in the clamping jaws 24 and 25 as well as through gates 5 ~ i in the legs 7 and S. The two pairs of slots 30 and 3 1 are arranged inclined to one another. After releasing the toggle device, the backrest support can be adjusted both in height and by pivoting the two clamping jaws 2 and 25 relative to the rocker 6 and thus relative to the seat plate support 1 «,

6 -

703052S 9/13/73

Claims (2)

·. : ΐ 088 - 6 - M "8.1970 Expectations ο Seating furniture with a tick backrest that is in a Via a horizontal Aohae attached to a seat plate carrier against the restoring force of a helical spring, rocker can be pivoted and pivoted to a limited extent is arranged vertically displaceable according to the patent. · (Godparent message P 16 54 383.7-16), thereby characterized that the spring force of the helical spring (9) by means of a on the rocker (6) arranged adjusting member (16-18) is adjustable. 2. Seating furniture naoh claim 1, characterized in that the helical spring (9) is designed symmetrically and a web (15) forming, of one with the threaded shaft 17 of the Verstellorganes yerbundenen hook (16) overlapped Mitteilteil and two symmetrically formed, at ih- A 11 088 1 .08 ο 1970 i - dm - 7th Ren free ends rigid with respect to the seat plate support (1) has held winding parts (i0, 11).