EP1424029A1 - Armrest, particularly for office-chair - Google Patents

Armrest, particularly for office-chair Download PDF

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Publication number
EP1424029A1
EP1424029A1 EP03027060A EP03027060A EP1424029A1 EP 1424029 A1 EP1424029 A1 EP 1424029A1 EP 03027060 A EP03027060 A EP 03027060A EP 03027060 A EP03027060 A EP 03027060A EP 1424029 A1 EP1424029 A1 EP 1424029A1
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EP
European Patent Office
Prior art keywords
armrest
locking
upper shell
length adjustment
adjustment spring
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.)
Granted
Application number
EP03027060A
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German (de)
French (fr)
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EP1424029B1 (en
Inventor
Heinrich Fromme
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.)
Froli Kunststoffwerk Heinrich Fromme OHG
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Froli Kunststoffwerk Heinrich Fromme OHG
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Publication of EP1424029A1 publication Critical patent/EP1424029A1/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/03—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests

Definitions

  • the invention relates to an armrest, in particular for office chairs, with one composed of an upper shell and a lower shell Armrest, an insert plate with attached in the cavity and is arranged by a retaining clip locking insert, and the means for length and width adjustment and for pivoting has, locking means for fixing the set positions are provided.
  • Armrests made of plastic on swivel chairs or fixed chairs, in particular for use in the office area are known.
  • EP 1 258 209 A2 describes such an armrest, which in addition to the height adjustment has an adjustability of depth and width.
  • DE 201 12 915 an armrest is described in which the armrest as Hollow body made of an upper shell with padding and a lower shell is put together.
  • the insert plate Locking insert arranged the insert plate Locking insert arranged, the insert plate a pivot pin has, which engages in a pivot pin receptacle in the locking insert and thus allows its pivotability.
  • Such armrests are made of plastic injection molded parts Parts assembled.
  • Such an armrest which can be pivoted essentially in the horizontal plane is also known from DE 298 09 099.
  • forms the armrest a double-shell hollow body, positively assembled from one Upper shell and a lower shell, which is on the head of the armrest stand put on and fixed to this with two fasteners is.
  • the rear fastener acts as an axis of rotation
  • the front one Fastener is guided in a curved slot, which is the Swiveling allowed, which is limited by the elongated hole length.
  • To the Obtaining a desired pivot position are means for fixing the Swivel position provided.
  • a cross bar led elastic biased retaining clip provided, both with Corresponding locking means provided, the fixation by snapping enable, the latching can be canceled by means of an adjusting device is.
  • latching means can be locked at intervals provided by at least one of the inner walls of the Edge provided by the lower part or the upper part of the armrest Locking troughs is formed with a cross on the insert plate Armrest attached length adjustment spring cooperate, which is advantageous has an L-profile, the bent end portion parallel to the corresponding inner wall of the lower part or the upper part lies and carries a locking cam engaging in the locking recess.
  • the tension necessary for snapping provides the inherent elasticity the length adjustment spring, which is advantageous as a plastic injection molded part formed and made of a thermoplastic polymer, for example a polyoxymethylene is made.
  • the length adjustment spring For actuation exerted a force in the longitudinal direction of the armrest, which the latching cam lifts out of the recesses.
  • the boundary surfaces are advantageous here the locking troughs and / or the boundary surfaces of the locking cams formed as inclined surfaces so that the lifting over the effect an inclined plane is facilitated.
  • the locking recesses are advantageously provided on both sides and the length adjustment spring is designed as an essentially symmetrical C-profile, the two bent end areas, each with a locking cam are provided. This symmetrical design simplifies assembly and thus allows an even more economical production, with the Operating errors due to tilting are excluded.
  • a release lever is provided to lock the set angular position, the over the the locking insert for the width adjustment in its holding clip placed in its position and with this at one end connected is.
  • the free end of the release lever works with an unlocking agent together, that with a crosswise to the insert plate Axis is pivotable by means of a release lever.
  • This unlocking means that the free end of the position Release lever raised; with this lifting movement, a locking pin is which is guided through the retaining clip, from a locking recess in the Swivel link of the locking insert raised and stretched elastically. In this position can now the armrest by one in the Define engaging and guiding pivot pin defined there Pivot axis can be pivoted.
  • the retaining clip and the release lever are - like the others Parts of the armrest - advantageous as plastic injection molded parts educated. Different plastics can also be used Come into play.
  • plastics with high elasticity are required advantageously a thermoplastic polymer, for example a polyoxymethylene.
  • plastics come higher Strength used, advantageously a thermoplastic polycondensate, for example a polyamide.
  • the armrest has an armrest 20 which is attached to an (arbitrary) Arm support bracket 10 placed and by means of the retaining screws 31.1 with its head 10.1 screwed.
  • the armrest is from a lower shell 25 is formed, on which the upper shell 21 is placed is that the lower shell edge 25.1 with positive locking the upper shell edge 22 overlaps.
  • the upper shell 21 is with one Provide upholstery corresponding to comfort needs 21.1. It is the height of the lower shell edge 25.1 is less than the height of the edge 22 of the upper shell 21, so that the upper shell side of the edge area overall padding 21.1 has sufficient space.
  • On the for Cavity of the armrest 20 towards the inside of the edge 22 the upper shell 21 (to be described later) locking troughs 23 are provided.
  • the lower shell 25 has a (relatively) large recess 26 and an elongated hole 27 provided in the central longitudinal axis.
  • An insert plate 30 is slidably mounted in the lower shell 25, which is held with a clasp 31.
  • This insert plate 30 has transverse webs 34 in its central region, into which a locking insert 35 provided with corresponding opposing grooves is displaceable - as described in DE 202 12 915 - is placed.
  • This locking insert 35 carries on his the side facing away from the webs a pivot pin 35.1, which in a Swivel pin holder 31.2 engages in the clasp 31 and so that Specifies pivoting center for the armrest 20.
  • the clasp itself is screwed to the head of the armrest support with retaining screws 31.1, so that this clasp 31 can be regarded as fixed to the frame.
  • a release lever 33 is attached to one of the retaining screws 31.1, the one with a locking pin 33.1 through a pin passage 31.3 guided, with locking grooves 36.1 with a swivel link 36 Locking insert 35 cooperates. Reaches under a swing-out plate the release lever 33 as unlocking means 38, whereby the Locking pin 33.1 from the assigned one of the locking grooves 36.1 (in the illustration only one is shown - without this being a limitation on it means) is lifted.
  • An actuating bolt 38.2 allows this lock for pivotability from the bottom trigger the armrest 20 in a simple manner.
  • the lower shell is 25 in its rear area with a transverse length adjustment spring 39 provided.
  • the ends of this length adjustment spring 39 are bent approximately at right angles and lie as a lateral fold 39.1 parallel to the inner walls of the edges 22 of the upper shell 21.
  • This lateral fold 39.1 have locking cams at the end, which between the locking troughs provided on the inside of the edges 22 described above 23 intervene and thus block the longitudinal displaceability.
  • To the Unlocking requires an acting in the longitudinal direction of the armrest 20 Force that can be easily applied by the seated.
  • the locking cams 39.2 and / or the locking troughs 23 are chamfered that the force action in the manner of a wedge action lifting the locking cams 39.2 of the lateral fold 39.1 of the length adjustment spring 39 for Consequence, so that the longitudinal displacement is then unlocked (like 3, lower half shown).
  • the Locking cams 39.2 by itself between the locking troughs 23 and Longitudinal mobility of the armrest 20 is locked again.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Seats For Vehicles (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

Arm rest for an office chair is made up of upper (21) and lower (25) half shells. A plate (30) is mounted between these which allows the arm rest to be moved longitudinally and transversely and to swivel. The degree of swiveling is set using a lever (33) connected to a clip (31). The free end of the lever cooperates with a lock which swivels about an axis at right angles to the plate and releases a pin (33.1) from a snap fitting into a slide (36) passing through the clip. An Independent claim is included for a similar arm rest in which the longitudinal movement is controlled by cams (39.2) on the plate which cooperate with recesses (23) on the inner wall of the upper half shell.

Description

Die Erfindung betrifft eine Armstütze insbesondere für Bürostühle, mit einer aus einer Oberschale und einer Unterschale zusammengefügten Armauflage, wobei in dem Hohlraum eine Einsatzplatte mit aufgesetztem und von einer Haltespange gehaltenen Rasteinsatz angeordnet ist, und die Mittel zur Längen- und Weitenverstellung sowie zum Verschwenken aufweist, wobei Rastmittel zum Fixieren der eingestellten Stellungen vorgesehen sind.The invention relates to an armrest, in particular for office chairs, with one composed of an upper shell and a lower shell Armrest, an insert plate with attached in the cavity and is arranged by a retaining clip locking insert, and the means for length and width adjustment and for pivoting has, locking means for fixing the set positions are provided.

Armstützen aus Kunststoff an Drehstühlen oder Feststühlen, insbesondere zum Einsatz im Bürobereich, sind bekannt. Die EP 1 258 209 A2 beschreibt eine solche Armstütze, die neben der Höhenverstellung auch eine Verstellbarkeit der Tiefe und der Weite aufweist. In der DE 201 12 915 ist eine Armstütze beschrieben, bei der die Armauflage als Hohlkörper aus einer Oberschale mit Polsterung und einer Unterschale zusammengefügt ist. In dem Hohlkörper befindet sich eine Einsatzplatte, die mit Querstegen versehen, in dem Hohlkörper zur Weitenverstellung verschiebbar ist, wobei Rastmittel das Fixieren der eingestellten Weite ermöglichen. Zum Verschwenken ist auf der Einsatzplatte ein Rasteinsatz angeordnet, wobei die Einsatzplatte einen Schwenkzapfen aufweist, der in eine Schwenkzapfenaufnahme im Rasteinsatz eingreift und so dessen Verschwenkbarkeit erlaubt. Auch hier sind Rastmittel vorgesehen, zum Fixieren der gewünschten Einstellung. Solche Armauflagen werden dabei aus als Kunststoff-Spritzgussteilen ausgebildeten Einzelteilen zusammengesetzt.Armrests made of plastic on swivel chairs or fixed chairs, in particular for use in the office area are known. EP 1 258 209 A2 describes such an armrest, which in addition to the height adjustment has an adjustability of depth and width. In DE 201 12 915 an armrest is described in which the armrest as Hollow body made of an upper shell with padding and a lower shell is put together. There is an insert plate in the hollow body, which are provided with crossbars in the hollow body for width adjustment is displaceable, locking means fixing the set Allow vastness. To swivel is on the insert plate Locking insert arranged, the insert plate a pivot pin has, which engages in a pivot pin receptacle in the locking insert and thus allows its pivotability. There are also locking devices here provided to fix the desired setting. Such armrests are made of plastic injection molded parts Parts assembled.

Eine solche im Wesentlichen in horizontaler Ebene verschwenkbare Armstütze ist auch aus DE 298 09 099 bekannt. Dazu bildet die Armauflage einen zweischaligen Hohlkörper, formschlüssig zusammengefügt aus einer Oberschale und einer Unterschale, der auf den Kopf des Armstützenständers aufgesetzt und an dieser mit zwei Befestigungsmitteln festgesetzt ist. Das hintere Befestigungsmittel wirkt als Drehachse, das vordere Befestigungsmittel ist in einem gekrümmten Langloch geführt, die das Verschwenken erlaubt, das durch die Langloch-Länge begrenzt ist. Zum Erhalt einer gewünschten Schwenkstellung sind Mittel zum Fixieren der Schwenkposition vorgesehen. Dazu ist eine über eine Querleiste geführte, elastisch vorgespannte Haltespange vorgesehen, die beide mit korrespondierenden Rastmitteln versehen, die Fixierung durch Einrasten ermöglichen, wobei die Verrastung mittels einer Stellvorrichtung aufhebbar ist. Diese Armstützen-Konstruktionen sind komplex aufgebaut und somit nicht unbedingt wirtschaftlich herstellbar.Such an armrest which can be pivoted essentially in the horizontal plane is also known from DE 298 09 099. To do this, forms the armrest a double-shell hollow body, positively assembled from one Upper shell and a lower shell, which is on the head of the armrest stand put on and fixed to this with two fasteners is. The rear fastener acts as an axis of rotation, the front one Fastener is guided in a curved slot, which is the Swiveling allowed, which is limited by the elongated hole length. To the Obtaining a desired pivot position are means for fixing the Swivel position provided. For this purpose, a cross bar led elastic biased retaining clip provided, both with Corresponding locking means provided, the fixation by snapping enable, the latching can be canceled by means of an adjusting device is. These armrest designs are complex and complex therefore not necessarily economically feasible.

Somit ergibt sich die Aufgabenstellung, eine Armstütze der genannten Gattung vorzuschlagen, die mit Mitteln zum Entsperren der Armauflageneinstellung von Weite und/oder Tiefe und/oder Winkelstellung einfach aufgebaut und wirtschaftlich herstellbar ist.This results in the task, an armrest of the above Propose genus with means to unlock the armrest setting of width and / or depth and / or angular position easily is constructed and economically producible.

Diese Aufgabenstellung wird für eine gattungsgemäße Armstütze durch die kennzeichnenden Merkmale des Hauptanspruchs gelöst: vorteilhafte Weiterbildungen und bevorzugte Ausführungsformen beschreiben die Unteransprüche.This task is carried out for a generic armrest solved the characteristic features of the main claim: advantageous Further developments and preferred embodiments describe the subclaims.

Zum Sperren der Längsverschiebung sind in Abständen einrastbare Rastmittel vorgesehen, die von an mindestens einer der Innenwände des Randes von Unterteil oder von Oberteil der Armauflage vorgesehenen Rastmulden gebildet ist, die mit einer quer auf die Einsatzplatte der Armauflage aufgesetzten Längenverstellfeder zusammenwirken, die vorteilhaft ein L-Profil aufweist, deren umgebogener Endbereich parallel zu der korrespondierenden Innenwandung des Unterteils bzw. des Oberteils liegt und eine in die Rastmulde eingreifende Rastnocke trägt.To lock the longitudinal displacement, latching means can be locked at intervals provided by at least one of the inner walls of the Edge provided by the lower part or the upper part of the armrest Locking troughs is formed with a cross on the insert plate Armrest attached length adjustment spring cooperate, which is advantageous has an L-profile, the bent end portion parallel to the corresponding inner wall of the lower part or the upper part lies and carries a locking cam engaging in the locking recess.

Die zum Einrasten notwendige Spannung liefert die Eigenelastizität der Längenverstellfeder, die vorteilhaft als Kunststoff-Spritzgussteil ausgebildet und aus einem thermoplastischen Polymerisat, beispielsweise einem Polyoxymethylen gefertigt ist. Zur Betätigung wird eine Kraft in Längsrichtung der Armauflage ausgeübt, die die Rastnokken aus den Rastmulden hebt. Vorteilhaft sind dabei die Begrenzungsflächen der Rastmulden und/oder die Begrenzungsflächen der Rastnocken als Schrägflächen ausgebildet, so dass das Ausheben über die Wirkung einer schrägen Ebene erleichtert wird.The tension necessary for snapping provides the inherent elasticity the length adjustment spring, which is advantageous as a plastic injection molded part formed and made of a thermoplastic polymer, for example a polyoxymethylene is made. For actuation exerted a force in the longitudinal direction of the armrest, which the latching cam lifts out of the recesses. The boundary surfaces are advantageous here the locking troughs and / or the boundary surfaces of the locking cams formed as inclined surfaces so that the lifting over the effect an inclined plane is facilitated.

Vorteilhaft sind die Rastmulden beidseits vorgesehen und die Längenverstellfeder ist als im Wesentlichen symmetrisches C-Profil ausgebildet, dessen beide umgebogenen Endbereiche mit je einer Rastnocke versehen sind. Diese symmetrische Gestaltung vereinfacht die Montage und erlaubt somit eine noch wirtschaftlichere Fertigung, wobei beim Bedienen Fehler durch Verkanten ausgeschlossen sind.The locking recesses are advantageously provided on both sides and the length adjustment spring is designed as an essentially symmetrical C-profile, the two bent end areas, each with a locking cam are provided. This symmetrical design simplifies assembly and thus allows an even more economical production, with the Operating errors due to tilting are excluded.

Zum Sperren der eingestellten Winkelstellung ist ein Auslösehebel vorgesehen, der über die den Rasteinsatz für die Weitenverstellung in seiner Position haltenden Haltespange gelegt und mit dieser einendig verbunden ist. Das freie Ende des Auslösehebels wirkt mit einem Entsperrmittel zusammen, das mit einer quer zur Einsatzplatte gerichteten Achse mittels eines Auslösehebels so verschwenkbar ist. In ausgeschwenkter Stellung wird durch diese Entsperrmittel das freie Ende des Auslösehebels angehoben; mit dieser Hubbewegung wird ein Sperrzapfen, der durch die Haltespange geführt ist, aus einer Rastausnehmung in der Schwenkkulisse des Rasteinsatzes gehoben und elastisch gespannt. In dieser Stellung kann nunmehr die Armauflage um ihre durch einen in dem Rasteinsatz eingreifenden und dort geführten Schwenkzapfen definierten Schwenkachse verschwenkt werden. A release lever is provided to lock the set angular position, the over the the locking insert for the width adjustment in its holding clip placed in its position and with this at one end connected is. The free end of the release lever works with an unlocking agent together, that with a crosswise to the insert plate Axis is pivotable by means of a release lever. In swung out This unlocking means that the free end of the position Release lever raised; with this lifting movement, a locking pin is which is guided through the retaining clip, from a locking recess in the Swivel link of the locking insert raised and stretched elastically. In this position can now the armrest by one in the Define engaging and guiding pivot pin defined there Pivot axis can be pivoted.

Auch die Haltespange und der Auslösehebel werden - wie auch die anderen Teile der Armauflage - vorteilhaft als Kunststoff-Spritzgussteile ausgebildet. Dabei können auch unterschiedliche Kunststoffe zum Einsatz kommen. Für die Haltespange Kunststoffe hoher Elastizität benötigt, vorteilhaft ein thermoplastisches Polymerisat, beispielsweise ein Polyoxymethylen. Für den Auslösehebel kommen Kunststoffe hoher Festigkeit zum Einsatz, vorteilhaft ein thermoplastisches Polykondensat, beispielsweise ein Polyamid.The retaining clip and the release lever are - like the others Parts of the armrest - advantageous as plastic injection molded parts educated. Different plastics can also be used Come into play. For the retaining clip, plastics with high elasticity are required advantageously a thermoplastic polymer, for example a polyoxymethylene. For the release lever, plastics come higher Strength used, advantageously a thermoplastic polycondensate, for example a polyamide.

Das Wesen der Erfindung wird an Hand der in den Figuren 1 bis 6 dargestellten Ausführungsbeispiele näher erläutert; dabei zeigen:

Fig. 1:
Armstütze in Explosionsdarstellung:
Fig. 2
Armstütze, Längsschnitt;
Fig. 3.
Armstütze geöffnet - (hälftig geteilt, untere Hälfte ausgerastet - Aufsicht);
Fig. 4:
Einzelheit Rasteinsatz auf Einsatzplatte (Aufsicht);
Fig. 5:
Einzelheit Auslösung Verschwenken - gesperrt;
Fig. 6:
Einzelheit Auslösung Verschwenken - entsperrt;
The essence of the invention is explained in more detail with reference to the exemplary embodiments illustrated in FIGS. 1 to 6; show:
Fig. 1:
Exploded armrest:
Fig. 2
Armrest, longitudinal section;
Fig. 3.
Armrest opened - (split in half, lower half disengaged - supervision);
Fig. 4:
Detail snap-in insert on insert plate (supervision);
Fig. 5:
Detail trigger pivoting - blocked;
Fig. 6:
Detail trigger pivoting - unlocked;

Die Armstütze weist eine Armauflage 20 auf, die auf einen (beliebigen) Armstützenträger 10 aufgesetzt und mittels der Haltschrauben 31.1 mit dessen Kopf 10.1 verschraubt ist. Die Armauflage wird von einer Unterschale 25 gebildet, auf die die Oberschale 21 so aufgesetzt ist, dass der Unterschalenrand 25.1 mit Formschluss den Oberschalenrand 22 übergreift. Die Oberschale 21 ist dabei mit einer dem Komfort-Bedürfnis entsprechenden Polsterung 21.1 versehen. Dabei ist die Höhe des Unterschalen-Randes 25.1 geringer als die Höhe des Randes 22 der Oberschale 21, so dass die oberschalenseitig den Randbereich übergreifende Polsterung 21.1 hinreichend Raum hat. Auf der zum Hohlraum der Armauflage 20 hin gerichteten Innenseite des Randes 22 der Oberschale 21 sind (später zu beschreibende) Rastmulden 23 vorgesehen. Die Unterschale 25 weist eine (relativ) große Ausnehmung 26 auf, sowie ein in der Mittenlängsachse vorgesehenes Langloch 27.The armrest has an armrest 20 which is attached to an (arbitrary) Arm support bracket 10 placed and by means of the retaining screws 31.1 with its head 10.1 screwed. The armrest is from a lower shell 25 is formed, on which the upper shell 21 is placed is that the lower shell edge 25.1 with positive locking the upper shell edge 22 overlaps. The upper shell 21 is with one Provide upholstery corresponding to comfort needs 21.1. It is the height of the lower shell edge 25.1 is less than the height of the edge 22 of the upper shell 21, so that the upper shell side of the edge area overall padding 21.1 has sufficient space. On the for Cavity of the armrest 20 towards the inside of the edge 22 the upper shell 21 (to be described later) locking troughs 23 are provided. The lower shell 25 has a (relatively) large recess 26 and an elongated hole 27 provided in the central longitudinal axis.

In der Unterschale 25 ist eine Einsatzplatte 30 verschieblich gelagert, die mit einer Spange 31 gehalten ist. Diese Einsatzplatte 30 weist in ihrem Zentralbereich querverlaufende Stege 34 auf, in die ein mit korrespondierenden Gegennuten versehener Rasteinsatz 35 querverschieblich - wie in DE 202 12 915 beschrieben - aufgesetzt ist. Um dies zu ermöglichen, sind die Durchlässe für die Halteschrauben 31.1 als Langlöcher 32 ausgebildet. Dieser Rasteinsatz 35 trägt auf seiner den Stegen abgewandten Seite einen Schwenkzapfen 35.1, der in eine Schwenkzapfenaufnahme 31.2 in der Spange 31 eingreift und so das Schwenkzentrum für die Armauflage 20 vorgibt. Die Spange selbst ist mit Halteschrauben 31.1 mit dem Kopf des Armstützenträgers verschraubt, so dass diese Spange 31 als gestellfest anzusehen ist.An insert plate 30 is slidably mounted in the lower shell 25, which is held with a clasp 31. This insert plate 30 has transverse webs 34 in its central region, into which a locking insert 35 provided with corresponding opposing grooves is displaceable - as described in DE 202 12 915 - is placed. Around this is made possible by the openings for the retaining screws 31.1 formed as slots 32. This locking insert 35 carries on his the side facing away from the webs a pivot pin 35.1, which in a Swivel pin holder 31.2 engages in the clasp 31 and so that Specifies pivoting center for the armrest 20. The clasp itself is screwed to the head of the armrest support with retaining screws 31.1, so that this clasp 31 can be regarded as fixed to the frame.

Mit der einen der Halteschrauben 31.1 ist ein Auslösehebel 33 aufgesetzt, der mit einem Sperrzapfen 33.1 durch einen Zapfendurchlass 31.3 geführt, mit Rastnuten 36.1 mit einer Schwenkkulisse 36 des Rasteinsatzes 35 zusammenwirkt. Eine ausschwenkbare Platte untergreift dabei den Auslösehebel 33 als Entsperrmittel 38, wodurch der Sperrzapfen 33.1 aus der zugeordneten der Rastnuten 36.1 (in der Darstellung ist lediglich eine eingezeichnet - ohne dass dies eine Beschränkung darauf bedeutet) gehoben wird. Ein Betätigungsriegel 38.2 erlaubt es, diese Sperre für die Verschwenkbarkeit von der Unterseite der Armauflage 20 in einfacher Weise auszulösen.A release lever 33 is attached to one of the retaining screws 31.1, the one with a locking pin 33.1 through a pin passage 31.3 guided, with locking grooves 36.1 with a swivel link 36 Locking insert 35 cooperates. Reaches under a swing-out plate the release lever 33 as unlocking means 38, whereby the Locking pin 33.1 from the assigned one of the locking grooves 36.1 (in the illustration only one is shown - without this being a limitation on it means) is lifted. An actuating bolt 38.2 allows this lock for pivotability from the bottom trigger the armrest 20 in a simple manner.

Um die Armauflage 20 in Längsrichtung zu verschieben, ist die Unterschale 25 in ihrem hinteren Bereich mit einer quer liegenden Längenverstellfeder 39 versehen. Die Enden dieser Längenverstellfeder 39 sind etwa rechtwinklig abgebogen und liegen als seitlicher Umbug 39.1 parallel zu den Innenwänden der Ränder 22 der Oberschale 21. Diese seitlichen Umbuge 39.1 weisen endständig Rastnocken auf, die zwischen die auf der Innenseite der Ränder 22 vorgesehenen -oben beschriebenen-Rastmulden 23 eingreifen und so die Längsverschiebbarkeit sperren. Zum Entsperren bedarf es einer in Längsrichtung der Armauflage 20 wirkenden Kraft, die von Sitzenden ohne weiteres aufgebracht werden kann. Die Rastnocken 39.2 und/oder die Rastmulden 23 sind so abgeschrägt, dass die Kraftwirkung in Art einer Keilwirkung das Ausheben der Rastnocken 39.2 der seitlichen Umbuge 39.1 der Längenverstellfeder 39 zur Folge haben, so dass die Längsverschiebbarkeit dann entsperrt ist (wie in Fig. 3, untere Hälfte gezeigt). Bei Nachlassen der Kraft fallen die Rastnocken 39.2 von selbst wieder zwischen die Rastmulden 23 und die Längsbewegbarkeit der Armauflage 20 ist wieder gesperrt.In order to move the armrest 20 in the longitudinal direction, the lower shell is 25 in its rear area with a transverse length adjustment spring 39 provided. The ends of this length adjustment spring 39 are bent approximately at right angles and lie as a lateral fold 39.1 parallel to the inner walls of the edges 22 of the upper shell 21. This lateral fold 39.1 have locking cams at the end, which between the locking troughs provided on the inside of the edges 22 described above 23 intervene and thus block the longitudinal displaceability. To the Unlocking requires an acting in the longitudinal direction of the armrest 20 Force that can be easily applied by the seated. The locking cams 39.2 and / or the locking troughs 23 are chamfered that the force action in the manner of a wedge action lifting the locking cams 39.2 of the lateral fold 39.1 of the length adjustment spring 39 for Consequence, so that the longitudinal displacement is then unlocked (like 3, lower half shown). When the strength drops, the Locking cams 39.2 by itself between the locking troughs 23 and Longitudinal mobility of the armrest 20 is locked again.

Claims (7)

Armstütze insbesondere für Bürostühle, mit einer aus einer Oberschale und einer Unterschale zusammengefügten Armauflage, wobei in dem Hohlraum eine Einsatzplatte mit aufgesetztem und von einer Haltespange gehaltenen Rasteinsatz angeordnet ist, und die Mittel zur Längen- und Weitenverstellung sowie zum Verschwenken aufweist, wobei Rastmittel zum Fixieren der eingestellten Stellungen vorgesehen sind, dadurch gekennzeichnet, dass als Rastmittel zum Fixieren der Längenverstellung der Armauflage (20) zumindest eine der Innenwandungen eines längsverlaufenden Oberschalenrandes (22) der Oberschale (21) mit einer Anzahl voneinander beabstandeter Rastmulden (23) versehen ist, die mit einer Längenverstellfeder (39) zusammenwirken, wobei die Längenverstellfeder (39) endständig eine Rastnocke (39.2) aufweist.Armrest, in particular for office chairs, with an armrest assembled from an upper shell and a lower shell, an insert plate with a detent insert attached and held by a retaining clip being arranged in the cavity, and having the means for length and width adjustment and for pivoting, with detent means for fixing of the set positions are provided, characterized in that at least one of the inner walls of a longitudinal upper shell edge (22) of the upper shell (21) is provided with a number of spaced-apart locking troughs (23) as locking means for fixing the length adjustment of the armrest (20) a length adjustment spring (39) cooperate, the length adjustment spring (39) having a locking cam (39.2) at the end. Armstütze nach Anspruch 1, dadurch gekennzeichnet, dass das mit der Rastnocke (39.2) versehene Ende der Längenverstellfeder (39) einen Umbug (39.1) aufweist, der etwa parallel zu der Innenwandung des längsverlaufenden Oberschalenrandes (22) der Oberschale (21) liegt.Armrest according to claim 1, characterized in that the end of the length adjustment spring (39) provided with the locking cam (39.2) has a fold (39.1) which is approximately parallel to the inner wall of the longitudinal upper shell edge (22) of the upper shell (21). Armstütze nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass beide Innenwandungen des längsverlaufenden Oberschalenrandes (22) der Oberschale (21) mit einer Anzahl voneinander beabstandeter Rastmulden (23) versehen ist und die Längenverstellfeder (39) als im wesentlichen symmetrisches C-Profil ausgebildet beidseits endständig je eine Rastnocke (39.2) aufweist, wobei vorzugsweise die mit der Rastnocke (39.2) versehenen Enden der Längenverstellfeder (39) den Umbug (39.1) aufweisen.Armrest according to claim 1 or 2, characterized in that both inner walls of the longitudinal upper shell edge (22) of the upper shell (21) are provided with a number of spaced-apart locking troughs (23) and the length adjustment spring (39) is designed as an essentially symmetrical C-profile on both sides each has a latching cam (39.2), the ends of the length adjustment spring (39) preferably provided with the latching cam (39.2) having the fold (39.1). Armstütze nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Rastmulden (23) und/oder die Rastnocken (39.2) in Verschieberichtung mit Schrägflächen begrenzt sind, zum Erleichtern des Aushebens über die Wirkung einer schrägen Ebene.Armrest according to one of claims 1 to 3, characterized in that the latching troughs (23) and / or the latching cams (39.2) are delimited with inclined surfaces in the direction of displacement, in order to facilitate lifting via the effect of an inclined plane. Armstütze nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Längenverstellfeder (39) als Kunststoff-Spritzgussteil ausgebildet und aus einem thermoplastischen Polymerisat, vorzugsweise einem Polyoxymethylen hergestellt ist.Armrest according to one of claims 1 to 4, characterized in that the length adjustment spring (39) is designed as a plastic injection molded part and is made of a thermoplastic polymer, preferably a polyoxymethylene. Armstütze insbesondere für Bürostühle, mit einer aus einer Oberschale und einer Unterschale zusammengefügten Armauflage, wobei in dem Hohlraum eine Einsatzplatte mit aufgesetztem und von einer Haltespange gehaltenen Rasteinsatz angeordnet ist, und die Mittel zur Längen- und Weitenverstellung sowie zum Verschwenken aufweist, wobei Rastmittel zum Fixieren der eingestellten Stellungen vorgesehen sind, dadurch gekennzeichnet, dass als Rastmittel zum Fixieren der Schwenkstellung der Armauflage (20) ein Auslösehebel (33) vorgesehen ist, der über der Haltespange (31) angeordnet und einseitig mit dieser verbunden ist, und dessen freies Ende mit einem Entsperrmittel (38) zusammenwirkt, wobei das Entsperrmittel (38) mit einer quer zur Einsatzplatte gerichteten Achse mittels eines Betätigungsriegels (38.2) so verschwenkbar ist, dass ein Sperrzapfen ((33.1), der durch die Haltespange (31) geführt, aus einer Rastausnehmung (36.1) in der Schwenkkulisse (36) des Rasteinsatzes (35) gehoben und elastisch gespannt wird.Armrest, in particular for office chairs, with an armrest assembled from an upper shell and a lower shell, an insert plate with a detent insert attached and held by a retaining clip being arranged in the cavity, and having the means for length and width adjustment and for pivoting, with detent means for fixing of the set positions are provided, characterized in that a release lever (33) is provided as locking means for fixing the pivoting position of the armrest (20), which is arranged above the retaining clip (31) and connected on one side to it, and the free end of which is connected to a Unlocking means (38) cooperate, the unlocking means (38) being pivotable with an axis directed transversely to the insert plate by means of an actuating bolt (38.2) in such a way that a locking pin ((33.1), which is guided through the retaining clip (31), comes out of a locking recess 36.1) in the swivel link (36) of the locking insert (35) raised u nd is stretched elastically. Armstütze nach Anspruch 6, dadurch gekennzeichnet, dass der Auslösehebel (33) als Kunststoff-Spritzgussteil ausgebildet ist und aus einem thermoplastischen Polymerisat, vorzugsweise einem Polyoxymethylen hergestellt ist.Armrest according to claim 6, characterized in that the release lever (33) is designed as a plastic injection molded part and is made of a thermoplastic polymer, preferably a polyoxymethylene.
EP03027060A 2002-11-27 2003-11-25 Armrest, particularly for office-chair Expired - Lifetime EP1424029B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20218436U DE20218436U1 (en) 2002-11-27 2002-11-27 Armrest especially for office chairs
DE20218436U 2002-11-27

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EP1424029A1 true EP1424029A1 (en) 2004-06-02
EP1424029B1 EP1424029B1 (en) 2005-10-05

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AT (1) ATE305731T1 (en)
DE (2) DE20218436U1 (en)
ES (1) ES2248697T3 (en)

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WO2006108628A1 (en) 2005-04-13 2006-10-19 Bock1 Gmbh & Co. Kg Arm rest, especially for an office chair
GB2466105A (en) * 2008-12-09 2010-06-16 Gm Global Tech Operations Inc Actuation lever for a longitudinal adjustment device of a car seat
US9872565B2 (en) 2012-09-20 2018-01-23 Steelcase Inc. Chair arm assembly
US11304528B2 (en) 2012-09-20 2022-04-19 Steelcase Inc. Chair assembly with upholstery covering

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DE102023202868A1 (en) 2023-03-29 2024-10-02 Robert Bosch Gesellschaft mit beschränkter Haftung Vibration-decoupled hand tool

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Publication number Priority date Publication date Assignee Title
WO2006108628A1 (en) 2005-04-13 2006-10-19 Bock1 Gmbh & Co. Kg Arm rest, especially for an office chair
US7837269B2 (en) 2005-04-13 2010-11-23 Bock1 Gmbh & Co. Kg Armrest, in particular for an office chair
GB2466105A (en) * 2008-12-09 2010-06-16 Gm Global Tech Operations Inc Actuation lever for a longitudinal adjustment device of a car seat
GB2466105B (en) * 2008-12-09 2013-03-20 Gm Global Tech Operations Inc Actuating lever for a longitudinal adjustment device of a motor vehicle seat
US8408511B2 (en) 2008-12-09 2013-04-02 GM Global Technology Operations LLC Actuating lever for a longitudinal adjustment device of a motor vehicle seat
US9872565B2 (en) 2012-09-20 2018-01-23 Steelcase Inc. Chair arm assembly
US10213019B2 (en) 2012-09-20 2019-02-26 Steelcase Inc. Chair arm assembly
US10835041B2 (en) 2012-09-20 2020-11-17 Steelcase Inc. Chair arm assembly
US11304528B2 (en) 2012-09-20 2022-04-19 Steelcase Inc. Chair assembly with upholstery covering

Also Published As

Publication number Publication date
EP1424029B1 (en) 2005-10-05
ES2248697T3 (en) 2006-03-16
ATE305731T1 (en) 2005-10-15
DE20218436U1 (en) 2004-01-15
DE50301294D1 (en) 2005-11-10

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