DE533882C - Backrest for chairs with adjustable inclination and adjustable suspension - Google Patents

Backrest for chairs with adjustable inclination and adjustable suspension

Info

Publication number
DE533882C
DE533882C DENDAT533882D DE533882DD DE533882C DE 533882 C DE533882 C DE 533882C DE NDAT533882 D DENDAT533882 D DE NDAT533882D DE 533882D D DE533882D D DE 533882DD DE 533882 C DE533882 C DE 533882C
Authority
DE
Germany
Prior art keywords
backrest
adjustable
chairs
suspension
inclination
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DENDAT533882D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FR DRABERT SOEHNE
Original Assignee
FR DRABERT SOEHNE
Publication date
Application granted granted Critical
Publication of DE533882C publication Critical patent/DE533882C/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/441—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with adjustable elasticity

Landscapes

  • Chairs Characterized By Structure (AREA)

Description

Die Absicht, den sitzend Beschäftigten für jede Körperhaltung eine Rückenstütze zu geben, führte zum Bau von Stühlen mit in der Neigung verstellbaren und in der Federung regelbaren Rückenlehnen. Zwar gibt es bereits verstellbare Rückenlehnen, jedoch ist die Handhabung der Einstellmittel umständlich und die Verstellung meist nur unter Anwendung eines "Werkzeuges möglich. Aus diesem Grunde unterbleibt dann oftmals die notwendige Verstellung.The intention to give the seated worker a back support for every posture, led to the construction of chairs with adjustable backrests and adjustable suspension. Although there is already adjustable backrests, but the handling of the adjustment means is cumbersome and adjustment is usually only possible using a "tool. From this Basically, the necessary adjustment is often not made.

Die vorliegende Erfindung vermeidet diese angeführten Übelstände und gestattet durch Drehen je einer leicht bedienbaren Handmutter entweder die Verstellbarkeit der Lehnenneigung oder die Regulierung der Rükkenlehnenfederung. The present invention avoids these stated drawbacks and allows through Turn an easy-to-use hand nut to either adjust the inclination of the backrest or the regulation of the backrest suspension.

Als neu wird hervorgehoben die Anordnung eines Paares Schraubenräder bzw. eines Schraubenrades und eines Schraubenradsektors, an deren Stelle natürlich auch Schnecke und Schneckenradsektor treten können. Mittels dieser Stellmittel wird die Verstellung der Lehne wesentlich erleichtert. Die spannbare Feder ist so angeordnet, daß keine Verstellung der Lehne erfolgt, wenn an der Spannmutter gedreht wird.The arrangement of a pair of helical gears or one is highlighted as new Helical gear and a helical gear sector, in their place of course also a worm and worm gear sector. The adjustment is made by means of these adjusting means the backrest is much easier. The tensionable spring is arranged so that no adjustment the backrest takes place when the clamping nut is turned.

Ein Ausführungsbeispiel des Erfindungsgegenstandes ist in der Zeichnung dargestellt, und zwar zeigenAn embodiment of the subject matter of the invention is shown in the drawing, namely show

Abb. ι einen Drehstuhl in senkrechtem Schnitt,Fig. Ι a swivel chair in vertical section,

Abb. 2 die Draufsicht unter Weglassung von Sitz und Lehnenfläche undFig. 2 the top view with the omission of the seat and backrest surface and

Abb. 3 die Stellvorrichtung und die Federung der Rückenlehne in natürlicher Größe.Fig. 3 the adjusting device and the suspension of the backrest in natural size.

Mit t ist der Stuhlunterteil bezeichnet, welcher die Stuhlspindel 2 aufnimmt. Diese ist mit den Sitzträgern 3, auf welchen der Sitz 4 ruht, fest verbunden. An den Sitzträgern sind zwei Lager 5 angeordnet, an denen die Rükkenlehne 6 mittels der Drehachse 7 angelenkt ist. In einem an der Drehachse 7 fest angeordneten Hebelarm 8 ist ein Schraubenrad 9 geführt, "welches mittels des Handrades 10 gedreht werden kann. Das Schraubenrad steht in Eingriff mit dem Schraubenradsektor 11, welcher am Hebel 12 befestigt ist. Der Hebel 12 ist an einem Ende hülsenartig ausgebildet und pendelt auf der Drehachse 7. .Am anderen Ende nimmt der Hebel 12 den Führungsbolzen 13 der Feder 14 auf, die durch die Stellmutter 15 gespannt werden kann. Der Führungsbolzen 13 ist gelenkartig am Sitzträger 3 gelagert.The lower part of the chair, which receives the chair spindle 2, is denoted by t. This is firmly connected to the seat supports 3 on which the seat 4 rests. Are on the seat supports two bearings 5 are arranged, to which the backrest 6 is articulated by means of the axis of rotation 7 is. A helical gear 9 is located in a lever arm 8 which is fixedly arranged on the axis of rotation 7 out, "which by means of the handwheel 10 can be rotated. The helical gear meshes with the helical gear sector 11, which is attached to the lever 12. The lever 12 is sleeve-like at one end and oscillates on the axis of rotation 7. At the other end, the lever 12 takes the Guide pin 13 of the spring 14 through the adjusting nut 15 can be tightened. Of the Guide pin 13 is mounted on seat support 3 in the manner of a joint.

Neben einfachster Handhabung hat die Erfindung auch den Vorzug größter Billigkeit.In addition to the simplest handling, the invention also has the advantage of being extremely cheap.

Claims (1)

Patentanspruch:Claim: In der Neigung verstellbare und in der Federung regelbare Rückenlehne für Stühle u. dgl., dadurch gekennzeichnet, daß die Drehachse (7) der Rückenlehne (6) mit einem festen (8) und einem pendelnden Hebel (12) ausgerüstet ist, die durch ein Schrauben- oder Schneckenradpaar (9, 11) gegeneinander verstellbar sind.Backrest with adjustable incline and adjustable suspension for Chairs and the like, characterized in that the axis of rotation (7) of the backrest (6) is equipped with a fixed (8) and a swinging lever (12), which by a screw or worm gear pair (9, 11) can be adjusted relative to one another. Hierzu ι Blatt ZeichnungenFor this purpose ι sheet of drawings
DENDAT533882D Backrest for chairs with adjustable inclination and adjustable suspension Expired DE533882C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE533882T

Publications (1)

Publication Number Publication Date
DE533882C true DE533882C (en) 1931-09-19

Family

ID=6556234

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT533882D Expired DE533882C (en) Backrest for chairs with adjustable inclination and adjustable suspension

Country Status (1)

Country Link
DE (1) DE533882C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5452937A (en) * 1992-03-09 1995-09-26 Pro-Cord S.R.L. Plate for connecting the seat, back and legs, especially for chairs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5452937A (en) * 1992-03-09 1995-09-26 Pro-Cord S.R.L. Plate for connecting the seat, back and legs, especially for chairs

Similar Documents

Publication Publication Date Title
DE2360165A1 (en) SEAT FURNITURE WITH SWIVELING BACKREST
DE3232771A1 (en) WORK SEAT
DE10249335A1 (en) Device for adjusting the seat depth of a chair
DE2927377A1 (en) SEAT, IN PARTICULAR OFFICE SWIVEL CHAIR
CH260823A (en) Coupling for a chair back support which is carried by a stand and is adjustable in height relative to a chair seat and can be pivoted forwards and backwards.
DE2523308C2 (en) Seating furniture, in particular office swivel chairs
DE533882C (en) Backrest for chairs with adjustable inclination and adjustable suspension
DE1630927A1 (en) Device for adjusting the backrest of vehicle seats
DE1274003B (en) Backrest with adjustable back support for vehicle seats
DE1254838B (en) Swivel chair
DE581679C (en) Backrest, especially for typewriter chairs
DE693552C (en) Armrest adjustment device on a deck chair
DE936164C (en) Device for holding books while reading
DE2259010A1 (en) ADJUSTABLE CHAIR
DE681657C (en) By shifting the body weight, the deck chair can be automatically adjusted to the position of use
DE751894C (en) In a sleeping camp convertible seat with adjustable backrest for motor vehicles u. like
DE1901123U (en) ADJUSTABLE BACKREST SEAT, ESPECIALLY FOR VEHICLES.
DE465357C (en) Chair with a seat mounted on a spindle and a flexible backrest
DE461574C (en) Lectern
DE655118C (en) Examination and operating chair
DE451968C (en) Seat. Especially for motor vehicles
DE630880C (en) Adjustable seat for motor vehicles
DE357382C (en) Adjustable school desk, consisting of a desk top, which is carried by feet and whose height can be changed by changing the inclination of the feet to the vertical
DE453607C (en) Drafting table adjustable in height and incline
DE1064220B (en) Suspension for backrests on chairs, preferably on office chairs