EP1424029B1 - Armrest, particularly for office-chair - Google Patents

Armrest, particularly for office-chair Download PDF

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Publication number
EP1424029B1
EP1424029B1 EP03027060A EP03027060A EP1424029B1 EP 1424029 B1 EP1424029 B1 EP 1424029B1 EP 03027060 A EP03027060 A EP 03027060A EP 03027060 A EP03027060 A EP 03027060A EP 1424029 B1 EP1424029 B1 EP 1424029B1
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EP
European Patent Office
Prior art keywords
latching
armrest
insert
upper shell
adjusting 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.)
Expired - Lifetime
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EP03027060A
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German (de)
French (fr)
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EP1424029A1 (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 of an upper shell and a lower shell joined together Armrest, wherein in the cavity an insert plate with attached and held by a holding clasp locking insert is arranged, and the means for length and width adjustment and for pivoting having latching means for fixing the adjusted positions are provided.
  • Such an armrest pivotable essentially in the horizontal plane is also known from DE 298 09 099.
  • the armrest forms for this purpose a clamshell hollow body, positively joined together from a Upper shell and a lower shell, which is on the head of the armrest stand attached and fixed to this with two fasteners is.
  • the rear attachment means acts as a rotation axis, the front Fastener is guided in a curved slot that the Pivoting allowed, which is limited by the slot length.
  • To the Receiving a desired pivot position are means for fixing the Swivel position provided.
  • a guided over a crossbar, provided elastically biased retaining clip, both with Provided corresponding locking means, the fixation by snapping allow, with the catch can be canceled by means of an adjusting device is.
  • the advantageous has an L-profile, whose bent end portion parallel to the corresponding inner wall of the lower part or the upper part lies and a engaging in the detent recess locking cam carries.
  • the tension necessary for latching 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 Rastnokken lifts out of the cesspool.
  • the boundary surfaces the locking recesses and / or the boundary surfaces of the locking cams designed as inclined surfaces, so that the lifting over the effect an inclined plane is facilitated.
  • the locking recesses are provided on both sides and the length adjustment spring is designed as a substantially symmetrical C-profile, the two bent end portions, each with a locking cam are provided.
  • This symmetrical design simplifies installation and thus allows even more economical production, with the Operation errors due to tilting are excluded.
  • a release lever is provided, the over the the locking insert for the width adjustment in placed holding his position retaining clip and with this one-end connected is.
  • the free end of the release lever acts with an unlocking together, with a transverse to the insert plate directed Axis is pivotable by means of a release lever.
  • In swung out Position is through this unlocking the free end of the Release lever raised; with this lifting movement is a locking pin, which is guided by the retaining clip, from a recess in the Pivoting gate of the locking insert raised and stretched elastically.
  • This position can now the armrest to its by a in the Lock insert engaging and guided there pivot pin defined Swivel axis to be pivoted.
  • the retaining clip and the release lever are - as well as the others Parts of the armrest - advantageous as plastic injection molded parts educated. It also different plastics for Use come.
  • the clasp plastic high elasticity needed advantageously a thermoplastic polymer, for example a polyoxymethylene.
  • the release lever plastics are higher Strength for use, advantageously a thermoplastic polycondensate, for example, a polyamide.
  • the armrest has an armrest 20 which is placed on one (any) Armrest carrier 10 mounted and by means of the screws 31.1 is bolted to the head 10.1.
  • the armrest is made by a lower shell 25 formed on the upper shell 21 is placed so is that the lower edge edge 25.1 with positive locking the upper shell edge 22 overlaps.
  • the upper shell 21 is in this case with a Comfort need corresponding padding 21.1 provided. 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, the edge region Overlapping padding 21.1 has sufficient room.
  • On the to Cavity of the armrest 20 directed towards the inside of the edge 22nd the upper shell 21 are provided (to be described later) latching recesses 23.
  • the lower shell 25 has a (relatively) large recess 26 on, as well as provided in the central longitudinal axis slot 27.
  • an insert plate 30 is slidably mounted, which is held with a clasp 31.
  • This insert plate 30 has in its central region transverse webs 34, in the a provided with corresponding counter-grooves locking insert 35 transversely - As described in DE 202 12 915 - is attached.
  • the passages for the retaining screws 31.1 formed as slots 32.
  • This locking insert 35 carries on his the webs facing away from a pivot pin 35.1, in a Pivot pin receptacle 31.2 engages in the clasp 31 and so the Pivoting center for the armrest 20 pretends.
  • the clasp itself is bolted with retaining screws 31.1 to the head of the armrest support, so that this clasp 31 is to be regarded as fixed to the frame.
  • a release lever 33 With the one of the retaining screws 31.1 a release lever 33 is placed, with a locking pin 33.1 through a pin passage 31.3 out, with locking grooves 36.1 with a pivoting gate 36 of the Lock insert 35 cooperates.
  • a swinging plate engages under while the release lever 33 as the unlocking means 38, whereby the Locking pin 33.1 from the associated locking grooves 36.1 (in the illustration only one is drawn - without this being a limitation meaning) is lifted.
  • An actuating latch 38.2 allows this lock for pivoting from the bottom to trigger the armrest 20 in a simple manner.
  • the lower shell 25 To move the armrest 20 in the longitudinal direction, is the lower shell 25 in its rear area with a transverseConnectnverstellfeder 39 provided.
  • the ends of this length adjustment spring 39th are bent approximately at right angles and lie as a lateral Umbug 39.1 parallel to the inner walls of the edges 22 of the upper shell 21.
  • This lateral Umbuge 39.1 have terminal locking cams on the between provided on the inside of the edges 22 -above described-catch wells 23 intervene and so lock the longitudinal displacement.
  • To the Unlocking it requires an acting in the longitudinal direction of the armrest 20 Power that can easily be applied by seated people.
  • the locking cams 39.2 and / or the detent recesses 23 are beveled, that the force effect in the manner of a wedge effect, the lifting of the locking cams 39.2 of the lateral bend 39.1 of the length adjustment spring 39 for Result, so that the longitudinal displacement is then unlocked (as shown in Fig. 3, lower half).
  • the fall Locking cams 39.2 by itself again between the locking recesses 23 and the 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 of an upper shell and a lower shell joined together Armrest, wherein in the cavity an insert plate with attached and held by a holding clasp locking insert is arranged, and the means for length and width adjustment and for pivoting having latching means for fixing the adjusted 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.Plastic armrests 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, in addition to the height adjustment also has an adjustability of the depth and the width. In DE 201 12 915 an armrest is described in which the armrest as Hollow body from a top shell with padding and a lower shell is joined together. In the hollow body is an insert plate, provided with transverse webs, in the hollow body for width adjustment is displaceable, wherein locking means fixing the set Allow for space. For pivoting is on the insert plate Lock insert arranged, wherein the insert plate has a pivot pin has, which engages in a pivot pin receptacle in the locking insert and so its pivoting allowed. Here are locking means intended to fix the desired setting. Such armrests be trained as plastic injection molded parts Components 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 pivotable essentially in the horizontal plane is also known from DE 298 09 099. The armrest forms for this purpose a clamshell hollow body, positively joined together from a Upper shell and a lower shell, which is on the head of the armrest stand attached and fixed to this with two fasteners is. The rear attachment means acts as a rotation axis, the front Fastener is guided in a curved slot that the Pivoting allowed, which is limited by the slot length. To the Receiving a desired pivot position are means for fixing the Swivel position provided. For this purpose, a guided over a crossbar, provided elastically biased retaining clip, both with Provided corresponding locking means, the fixation by snapping allow, with the catch can be canceled by means of an adjusting device is. These armrest designs are complex and constructed thus not necessarily economically producible.

Somit ergibt sich die Aufgabenstellung, eine ArmstĂĽtze 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.Thus, the task results, an armrest of said To propose genus with means to unlock the Armauflageneinstellung of width and / or depth and / or angular position easy constructed and economically manufacturable.

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 for a generic armrest by solved the characterizing features of the main claim: advantageous Further developments and preferred embodiments describe the dependent claims.

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 are snap-in locking means at intervals provided on at least one of the inner walls of the Edge of lower part or upper part of the armrest provided Locking recesses are formed with a cross on the insert plate of the Armrest patch length adjustment spring cooperate, the advantageous has an L-profile, whose bent end portion parallel to the corresponding inner wall of the lower part or the upper part lies and a engaging in the detent recess locking cam carries.

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 latching 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. To operate will exerted a force in the longitudinal direction of the armrest, the Rastnokken lifts out of the cesspool. Advantageously, the boundary surfaces the locking recesses and / or the boundary surfaces of the locking cams designed 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.Advantageously, the locking recesses are provided on both sides and the length adjustment spring is designed as a substantially symmetrical C-profile, the two bent end portions, each with a locking cam are provided. This symmetrical design simplifies installation and thus allows even more economical production, with the Operation 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. To lock the set angular position, a release lever is provided, the over the the locking insert for the width adjustment in placed holding his position retaining clip and with this one-end connected is. The free end of the release lever acts with an unlocking together, with a transverse to the insert plate directed Axis is pivotable by means of a release lever. In swung out Position is through this unlocking the free end of the Release lever raised; with this lifting movement is a locking pin, which is guided by the retaining clip, from a recess in the Pivoting gate of the locking insert raised and stretched elastically. In This position can now the armrest to its by a in the Lock insert engaging and guided there pivot pin defined Swivel axis to 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 - as well as the others Parts of the armrest - advantageous as plastic injection molded parts educated. It also different plastics for Use come. For the clasp plastic high elasticity needed advantageously a thermoplastic polymer, for example a polyoxymethylene. For the release lever plastics are higher Strength for use, 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:
ArmstĂĽtze 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 will be explained in more detail with reference to the embodiments illustrated in Figures 1 to 6; show:
Fig. 1:
Armrest in exploded view:
Fig. 2
Armrest, longitudinal section;
Fig. 3.
Armrest open - (half divided, lower half disengaged - supervision);
4:
Detail Lock insert on insert plate (top view);
Fig. 5:
Detail triggering pivoting - locked;
Fig. 6:
Particular triggering panning - 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 placed on one (any) Armrest carrier 10 mounted and by means of the screws 31.1 is bolted to the head 10.1. The armrest is made by a lower shell 25 formed on the upper shell 21 is placed so is that the lower edge edge 25.1 with positive locking the upper shell edge 22 overlaps. The upper shell 21 is in this case with a Comfort need corresponding padding 21.1 provided. 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, the edge region Overlapping padding 21.1 has sufficient room. On the to Cavity of the armrest 20 directed towards the inside of the edge 22nd the upper shell 21 are provided (to be described later) latching recesses 23. The lower shell 25 has a (relatively) large recess 26 on, as well as provided in the central longitudinal axis slot 27.

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.In the lower shell 25, an insert plate 30 is slidably mounted, which is held with a clasp 31. This insert plate 30 has in its central region transverse webs 34, in the a provided with corresponding counter-grooves locking insert 35 transversely - As described in DE 202 12 915 - is attached. Around to make this possible, the passages for the retaining screws 31.1 formed as slots 32. This locking insert 35 carries on his the webs facing away from a pivot pin 35.1, in a Pivot pin receptacle 31.2 engages in the clasp 31 and so the Pivoting center for the armrest 20 pretends. The clasp itself is bolted with retaining screws 31.1 to the head of the armrest support, so that this clasp 31 is to 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.With the one of the retaining screws 31.1 a release lever 33 is placed, with a locking pin 33.1 through a pin passage 31.3 out, with locking grooves 36.1 with a pivoting gate 36 of the Lock insert 35 cooperates. A swinging plate engages under while the release lever 33 as the unlocking means 38, whereby the Locking pin 33.1 from the associated locking grooves 36.1 (in the illustration only one is drawn - without this being a limitation meaning) is lifted. An actuating latch 38.2 allows this lock for pivoting from the bottom to 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.To move the armrest 20 in the longitudinal direction, is the lower shell 25 in its rear area with a transverse Längenverstellfeder 39 provided. The ends of this length adjustment spring 39th are bent approximately at right angles and lie as a lateral Umbug 39.1 parallel to the inner walls of the edges 22 of the upper shell 21. This lateral Umbuge 39.1 have terminal locking cams on the between provided on the inside of the edges 22 -above described-catch wells 23 intervene and so lock the longitudinal displacement. To the Unlocking it requires an acting in the longitudinal direction of the armrest 20 Power that can easily be applied by seated people. The locking cams 39.2 and / or the detent recesses 23 are beveled, that the force effect in the manner of a wedge effect, the lifting of the locking cams 39.2 of the lateral bend 39.1 of the length adjustment spring 39 for Result, so that the longitudinal displacement is then unlocked (as shown in Fig. 3, lower half). When the power is released the fall Locking cams 39.2 by itself again between the locking recesses 23 and the Longitudinal mobility of the armrest 20 is locked again.

Claims (7)

  1. Armrest, particularly for office chairs, having an arm support (20) joined together from an upper shell (21) and a lower shell (25), with an insert plate (30) having a mounted latching insert (35) which is held by a holding clasp (31) being disposed in the cavity, and which has means for adjusting the length and width as well as for swivelling, with latching means for fixing the adjusted positions being provided, characterised in that at least one of the inner walls of a longitudinally extending edge (22) of the upper shell (21) having a number of latching troughs (23) located at a distance from one another is provided as latching means for fixing the length adjustment of the arm support (20), said latching troughs (23) interacting with a length adjusting spring (39), with the length adjusting spring (39) having a latching cam (39.2) on the end thereof.
  2. Armrest as claimed in Claim 1. characterised in that the end of the length adjusting spring (39) provided with the latching cam (39.2) has a bent-over portion (39.1) which is located approximately parallel to the inner wall of the longitudinally extending edge (22) of the upper shell (21).
  3. Armrest as claimed in Claim 1 or 2, characterised in that both.inner walls of the longitudinally extending edge (22) of the upper shell (21) are provided with a number of latching troughs (23) located at a distance from one another and the length adjusting spring (39) is configured as a substantially symmetrical C profile and has, on both sides, a latching cam (39.2) on each end, with the ends of the length adjusting spring (39) provided with the latching cam (39.2) preferably having the bent-over portion (39.1).
  4. Armrest as claimed in any one of Claims 1 to 3, characterised in that the latching troughs (23) and/or the latching cams (39.2) are limited in the displacement direction by inclined faces to facilitate the lifting out over the action of an inclined plane.
  5. Armrest as claimed in any one of Claims 1 to 4, characterised in that the length adjusting spring (39) is configured as a plastic injection-moulded part and is manufactured from a thermoplastic polymer, preferably a polyoxymethylene.
  6. Armrest, particularly for office chairs, having an arm support (20) joined together from an upper shell (21) and a lower shell (25), with an insert plate (30) having a mounted latching insert (35) which is held by a holding clasp (31) being disposed in the cavity, and which has means for adjusting the length and width as well as for swivelling, with latching means for fixing the adjusted positions being provided, characterised in that a release lever (33) is provided as latching means for fixing the swivel position of the arm support (20), said release lever (33) being disposed above the holding clasp (31) and connected thereto on one side, and the free end of which interacts with unlocking means (38), with the unlocking means (38) having an axis oriented transversely to the insert plate being swivellable by means of an actuating bar (38.2), such that a locking pin (33.1) which is guided through the holding clasp (31) is raised out of a latching recess (36.1) in the swivelling connecting link (36) of the latching insert (35) and is tensed elastically.
  7. Armrest as claimed in Claim 6, characterised in that the release lever (33) is configured as a plastic injection-moulded part and is manufactured from 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

Publications (2)

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

Family

ID=30469923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03027060A Expired - Lifetime EP1424029B1 (en) 2002-11-27 2003-11-25 Armrest, particularly for office-chair

Country Status (4)

Country Link
EP (1) EP1424029B1 (en)
AT (1) ATE305731T1 (en)
DE (2) DE20218436U1 (en)
ES (1) ES2248697T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8967724B2 (en) 2012-09-20 2015-03-03 Steelcase Inc. Chair arm assembly
DE102023202868A1 (en) 2023-03-29 2024-10-02 Robert Bosch Gesellschaft mit beschränkter Haftung Vibration-decoupled hand tool

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005017142A1 (en) 2005-04-13 2006-10-19 Bock 1 Gmbh & Co. Kg Armrest, especially for an office chair
DE102008061109B4 (en) 2008-12-09 2019-05-09 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Operating lever for a Längsverstellvorrichtung a motor vehicle seat
US11304528B2 (en) 2012-09-20 2022-04-19 Steelcase Inc. Chair assembly with upholstery covering

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5641203A (en) * 1995-06-07 1997-06-24 Herman Miller Inc. Adjustable arm rest assembly
DE29809099U1 (en) 1998-05-22 1999-07-08 Froli Kunststoffe Heinrich Fromme, 33758 SchloĂź Holte-Stukenbrock Armrest, especially for office and swivel chairs
JP4185623B2 (en) * 1999-03-29 2008-11-26 株式会社岡村製作所 Chair armrest equipment
JP4518649B2 (en) * 2000-08-11 2010-08-04 株式会社岡村製作所 Chair armrest equipment
DE20108247U1 (en) 2001-05-16 2002-06-20 FROLI Kunststoffwerk Heinrich Fromme oHG, 33758 SchloĂź Holte-Stukenbrock Adjustment mechanism in particular for an armrest of a piece of seating furniture
DE10125996A1 (en) * 2001-05-18 2002-11-21 Bock 1 Gmbh & Co Arm rest for office chair comprises telescopic column on which arm rest itself is mounted, mounting having no release mechanism and allowing rest to be adjusted longitudinally and rotated
DE20212915U1 (en) 2002-08-22 2003-01-09 Penner, Gerhard, 59557 Lippstadt Hygiene article for use in anal region, used to protect underwear from soiling by discharge e.g. semi-liquid or pasty discharge from hemorrhoids, and to prevent sores, consists of waterproof rough paper, elastically crimped in middle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8967724B2 (en) 2012-09-20 2015-03-03 Steelcase Inc. Chair arm assembly
US9028001B2 (en) 2012-09-20 2015-05-12 Steelcase Inc. Chair arm assembly
US9427085B2 (en) 2012-09-20 2016-08-30 Steelcase Inc. Chair arm assembly
DE102023202868A1 (en) 2023-03-29 2024-10-02 Robert Bosch Gesellschaft mit beschränkter Haftung Vibration-decoupled hand tool

Also Published As

Publication number Publication date
DE20218436U1 (en) 2004-01-15
ES2248697T3 (en) 2006-03-16
EP1424029A1 (en) 2004-06-02
ATE305731T1 (en) 2005-10-15
DE50301294D1 (en) 2005-11-10

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