DE581679C - Backrest, especially for typewriter chairs - Google Patents

Backrest, especially for typewriter chairs

Info

Publication number
DE581679C
DE581679C DES102924D DES0102924D DE581679C DE 581679 C DE581679 C DE 581679C DE S102924 D DES102924 D DE S102924D DE S0102924 D DES0102924 D DE S0102924D DE 581679 C DE581679 C DE 581679C
Authority
DE
Germany
Prior art keywords
backrest
spring
chairs
typewriter
tongue
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
DES102924D
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.)
GERHARD BETHKE
Original Assignee
GERHARD BETHKE
Publication date
Priority to DES102924D priority Critical patent/DE581679C/en
Application granted granted Critical
Publication of DE581679C publication Critical patent/DE581679C/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • A47C7/44Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/443Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with coil springs
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • A47C7/44Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/441Support 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
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • A47C7/44Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/445Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with bar or leaf springs

Landscapes

  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Description

Bekannte Schreibmaschinenstühle, die mit einer federnden Rückenlehne ausgeführt sind, haben den Nachteil, daß das Einstellen der Lehne nur durch zeitraubendes Schrauben vorzunehmen oder mit ziemlicher Kraftanstrengung verbunden ist, so daß eine Steno-, typistin oft selbst nicht in der Lage ist, sich ' die Lehne nach Bedarf einzustellen.Well-known typewriter chairs that are designed with a resilient backrest, have the disadvantage that the backrest can only be adjusted by time-consuming screwing undertake or is associated with considerable exertion, so that a shorthand, Typist is often not able to adjust the backrest as required.

Die Erfindung betrifft eine Rückenlehne für Schreibmaschinenstühle o. dgl., deren das verstellbare Lehnenblatt tragender Holm an schwenkhebelartig am Stuhl befestigten Federhebeln verstellbar angelenkt ist und besteht darin, daß die Anlenkung mit über den Gets lenkbolzen hinaus verlängerten Laschen vorgenommen ist, zwischen denen ein Stützbolzen schwenkbar gelagert und in einem an den Federhebeln angelenkten Zungenhebel klemmbar und mit einer Feder abgestützt ist, derart, daß die jeweilige Winkelstellung der Lehne durch Druck auf den Zungenhebel veränderbar ist.The invention relates to a backrest for typewriter chairs o. The like., The adjustable Spar carrying the backrest leaf on spring levers attached to the chair like a rocker arm is hinged adjustable and consists in the fact that the articulation with over the Gets Steering bolt is also made extended lugs, between which a support bolt pivotally mounted and clamped in a tongue lever hinged to the spring levers and is supported with a spring, such that the respective angular position of the The backrest can be changed by pressing the tongue lever.

In der Zeichnung ist ein Ausführungsbeispiel dargestellt, und zwar zeigt: Abb. ι einen Längsschnitt durch den Lehnenbeschlag mit Holzholm und Lehnenblatt undIn the drawing, an embodiment is shown, namely shows: Fig. Ι a longitudinal section through the backrest fitting with wooden spar and backrest sheet and

Abb. 2 eine Aufsicht von Abb. r, jedoch ohne Holzholm und Rückenlehne. Die Winkel m, die mittels Schrauben an dem Sitz befestigt werden sollen, sind mit den Federhebeln ο durch den Bolzen h gelenkig verbunden. Die Feder ρ ist auf dem Bolzen h gelagert, ihre freien Schenkel finden an dem mit den Federhebeln ο fest vernieteten Bolzen q Anlage, während ihre geschlossenen Schenkel die ösenschraube g umschließen und durch die Flügelmutter f beliebig gespannt werden können. Hierdurch wird die Federung der Lehne bewirkt. Der mit den Winkeln tn fest vernietete Bolzen n, auf dem die ösenschraube g gelenkartig gelagert ist, dient gleichzeitig als Anschlag für die Federhebel 0, deren größter Ausschlag in k durch die in den Winkeln m befestigten Anschlagzapfen / begrenzt wird. Die Holmlaschen α, in denen der Holzholm ί mittels zwei Schrauben befestigt ist, sind durch den Bolzen r an den Federhebeln 0 angelenkt und über den Gelenkbolzen hinaus verlängert. Durch eine -5° an diesen Verlängerungen angeordnete Stellvorrichtung kann ihre Schräglage in einfachster, Weise-verändert werden.Fig. 2 is a top view of Fig. R, but without the wooden spar and backrest. The brackets m, which are to be fastened to the seat by means of screws, are articulated to the spring levers ο by the bolt h. The spring ρ is mounted on the bolt h , its free legs are in contact with the bolt q , which is firmly riveted to the spring levers ο , while its closed legs enclose the eyebolt g and can be tensioned as required by the wing nut f. This causes the backrest to spring. The bolt n firmly riveted to the angles tn , on which the eye screw g is mounted in a hinge-like manner, also serves as a stop for the spring lever 0, the maximum deflection of which in k is limited by the stop pins / fastened in the angles m. The spar brackets α, in which the wooden spar ί is fastened by means of two screws, are hinged to the spring levers 0 by the bolt r and extended beyond the hinge pin. An adjusting device arranged at -5 ° on these extensions allows their inclined position to be changed in the simplest possible way.

Die Stellvorrichtung besteht aus dem Stützbolzen c, der auf dem mit den Holmlaschen ο festvernieteten Bolzen b gelenkig gelagert ist und in der auf dem Federhebelbolzen q gelenkig gelagerten Zunge e Führung hat. Diese Zunge wird durch die Druckfeder d in die entgegengesetzte Richtung des Pfeiles gedrückt. Soll die Rückenlehne eingestellt werden, so ist die Zunge e in Richtung des Pfeiles zu bewegen, wodurch deren Kupplung mit dem Stützbolzen c gelöst wird. Die Lehne kann nun nach hinten gedrückt werden; dann setzt man sich auf den Stuhl und zieht die Lehne u oder den Holm .y einfach nach vorn, bis die Lehne im Rücken anliegt, ohne die Zunge e zu betätigen. Die Zunge e wird also nur ausgelöst, wenn man die Lehne zurückstellen will.The adjusting device consists of the support bolt c, which is articulated on the bolt b, which is firmly riveted to the spar brackets ο, and has a guide in the tongue e, which is articulated on the spring lever pin q . This tongue is pressed in the opposite direction of the arrow by the compression spring d. If the backrest is to be adjusted, the tongue e is to be moved in the direction of the arrow, whereby its coupling with the support bolt c is released. The backrest can now be pushed back; then you sit on the chair and simply pull the backrest u or the handlebar y forwards until the backrest rests against your back without pressing the tongue e . The tongue e is only released when you want to move the backrest back.

Die beschriebene Ausführungsform des federnden Rückenlehnenbeschlages wird meistens mit einem besonderen Drehstuhlbeschlag verwendet, oft auch einfach an bereits vorhandene Sitze geschraubt, oder die Winkel m werden länger ausgeführt und mit einem Querträger versehen, in den die Sitzspindel eingenietet wird.The described embodiment of the resilient backrest fitting is mostly used with a special swivel chair fitting, often simply screwed to existing seats, or the angle m are made longer and provided with a cross member into which the seat spindle is riveted.

Claims (1)

80 Patentanspruch: 80 claim: Rückenlehne, insbesondere für Schreibmaschinenstühle, deren das verstellbare Lehnenblatt tragender Holm an schwenkhebelartig am Stuhl befestigten Federhebeln verstellbar angelenkt ist, dadurch gekennzeichnet, daß die Anlenkung mit über dem Gelenkbolzen (r) hinaus verlängerten Laschen (α) vorgenommen ist, zwischen denen ein Stützbolzen (c) schwenkbar gelagert und in einem an den Federhebeln (0) angelenkten Zungenhebel (e) klemmbar und mit einer Feder (d) abgestützt ist, derart, daß die jeweilige Winkelstellung der Lehne durch Druck auf den Zungenhebel (c) veränderbar ist.Backrest, in particular for typewriter chairs, whose spar carrying the adjustable backrest leaf is adjustably articulated to spring levers attached to the chair in the manner of pivoting levers, characterized in that the articulation is carried out with lugs (α) extended beyond the hinge pin (r) , between which a support pin (c ) is pivotably mounted and can be clamped in a tongue lever (e) linked to the spring lever (0) and supported by a spring (d) in such a way that the respective angular position of the backrest can be changed by pressing the tongue lever (c) . Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DES102924D Backrest, especially for typewriter chairs Expired DE581679C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES102924D DE581679C (en) Backrest, especially for typewriter chairs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES102924D DE581679C (en) Backrest, especially for typewriter chairs

Publications (1)

Publication Number Publication Date
DE581679C true DE581679C (en) 1933-08-01

Family

ID=7524789

Family Applications (1)

Application Number Title Priority Date Filing Date
DES102924D Expired DE581679C (en) Backrest, especially for typewriter chairs

Country Status (1)

Country Link
DE (1) DE581679C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE970295C (en) * 1950-09-11 1958-09-04 Albert Spieth Chair, especially office chair
DE1064220B (en) * 1953-04-25 1959-08-27 Albert Spieth Suspension for backrests on chairs, preferably on office chairs
US3709535A (en) * 1971-01-18 1973-01-09 H Rothermel Hinge iron for posture chair
US4575150A (en) * 1984-04-09 1986-03-11 Simodow Manufacturing Ltd. Suspension arrangement for a tilting chair
US4830432A (en) * 1986-05-15 1989-05-16 Stabilus Gmbh Positioning device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE970295C (en) * 1950-09-11 1958-09-04 Albert Spieth Chair, especially office chair
DE1064220B (en) * 1953-04-25 1959-08-27 Albert Spieth Suspension for backrests on chairs, preferably on office chairs
US3709535A (en) * 1971-01-18 1973-01-09 H Rothermel Hinge iron for posture chair
US4575150A (en) * 1984-04-09 1986-03-11 Simodow Manufacturing Ltd. Suspension arrangement for a tilting chair
US4830432A (en) * 1986-05-15 1989-05-16 Stabilus Gmbh Positioning device

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