EP2474249B1 - Armrest, in particular for an office chair - Google Patents

Armrest, in particular for an office chair Download PDF

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Publication number
EP2474249B1
EP2474249B1 EP11010142.5A EP11010142A EP2474249B1 EP 2474249 B1 EP2474249 B1 EP 2474249B1 EP 11010142 A EP11010142 A EP 11010142A EP 2474249 B1 EP2474249 B1 EP 2474249B1
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EP
European Patent Office
Prior art keywords
armrest
platform
transfer element
blocking
arm support
Prior art date
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Application number
EP11010142.5A
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German (de)
French (fr)
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EP2474249A1 (en
Inventor
Hermann Bock
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.)
Bock 1 GmbH and Co KG
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Bock 1 GmbH and Co KG
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Publication date
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Publication of EP2474249A1 publication Critical patent/EP2474249A1/en
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Classifications

    • 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
    • A47C1/0303—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests adjustable rectilinearly in vertical direction
    • 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
    • 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
    • A47C1/0307—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests adjustable rectilinearly in horizontal direction

Definitions

  • the invention relates to an armrest, in particular for an office chair.
  • the invention relates to an armrest with a preferably height-adjustable armrest column, with a mounted on the armrest armrest and with a support for the armrest on the armrest column serving, mounted on the armrest column bearing head, a longitudinal and a Querverstellmechanik for longitudinal or transverse adjustment the armrest has.
  • an armrest is for example off US 2004/0130200 A1 known.
  • Such armrests are known in various designs from the prior art.
  • the bearing head in these known armrests on mostly structurally complex adjustment mechanisms, which also require a large installation space, so that the armrests are not only relatively expensive to manufacture, but in the armrest partly build up clearly.
  • the actuating devices required for actuating the adjusting mechanisms sometimes protrude clearly from the armrest column or the armrest, which is often undesirable for design and / or ergonomic aspects.
  • An essential idea of the invention is to provide a locking device which has an actuating element arranged between the carrier platform and the armrest for the simultaneous locking or releasing of all participating assemblies as well as a transmission element arranged between the carrier platform and the armrest, which transmits the blocking functionality of the actuating element to the individual components.
  • a longitudinal and transverse adjustment can thus be realized with a few components in a relatively simple manner. This not only reduces the manufacturing costs. The susceptibility to errors also drops. As a result, a particularly reliable adjustment mechanism is provided which can be realized in the smallest space.
  • the transmission element which along with the support platform on the one hand along the transverse movement and serves as a guide element for the longitudinal movement of the support platform and on the other hand blocking elements both for blocking the longitudinal adjustment, as well as for blocking the transverse adjustment, can be dispensed with the use of other components . Due to the chosen design concept, the required components can be positioned in the final assembly state to each other so that they fill the already existing gap between the carrier platform and armrest and beyond also more or less are arranged one inside the other, resulting in an extremely low height.
  • the armrest 1 comprises a height-adjustable, preferably telescopically constructed armrest column 2, at the upper end of a bearing head 3 is arranged.
  • the bearing head 3 carries an armrest 4 and is designed to displace the armrest 4 relative to the armrest column 2 both in the longitudinal direction 5 and in the transverse direction 6.
  • the pad of the armrest 4 is not shown.
  • the vertical leg (not shown) of the armrest column 2 is designed as a guide stand on which the outer sleeve of the armrest column 2 is guided in the vertical direction 7 slidably. In the guide stand a mecanicnverstellarret ist is installed.
  • the measures provided for the height adjustment of the armrest 1 actuating button 54 is arranged laterally on the armrest column 2.
  • An integrally formed on the vertical leg of the armrest column 2 horizontal leg (not shown) is used to attach the armrest 1 on the base of an office chair or the like.
  • the bearing head 3 consists essentially of a stationary base platform 9 connected to the armrest column 2 and one connected to the armrest 4 , horizontally in the transverse direction 6 and longitudinal direction 5 movable support platform eleventh
  • the outer sleeve is open at the top, wherein the opening 12 is closed by the base platform 9 of the bearing head 3 in the manner of a lid.
  • the base platform 9 is connected to the armrest column 2 by means of a number of fixing screws (not shown).
  • the fixing screws are passed through openings 16 in the base platform 9 and cooperate with screw threads which are provided in support elements 15, which are arranged for additional support of the base platform 9 dome-shaped upwardly extending in the opening 12 of the outer sleeve.
  • the base platform 9 has two spaced apart, transversely to the Armauflagenlticianscardi 21 extending, substantially a rectangular contour having, rectilinear guide channels 22 which extend substantially over the entire width of the base platform 9 and the degree of maximum adjustment of the armrest 4 in Specify transverse direction 6.
  • the support platform 11 comprises a base element 25 which, with a peripherally arranged, circumferential support member 26 forms an upwardly open housing, on which the armrest 4 is placed.
  • the circumferential support member 26 is in the assembled state on the inside of a provided on the underside 27 of the armrest 4 circumferential retaining wall 28 and thus ensures a secure fit of the armrest 4 on the support platform eleventh
  • the support platform 11 is screwed to the armrest 4, wherein the fixing screws (not shown) cooperating through corresponding openings 29 of the base member 25 hin barnsteht with screw threads in the extending from the bottom 27 of the armrest 4 vertically downwardly extending dome-shaped support elements 15th are arranged.
  • a transmission element 13 is arranged between the support platform 11 and the armrest 4, a transmission element 13 is arranged.
  • the strip-shaped main body 33 of the transmission element 13 covers the guide channel 31 partially.
  • the main body 33 has two passage openings 34 spaced apart from one another, wherein the spacing of the two passage openings 34 corresponds to the spacing of the two guide channels 22 in the base platform 9.
  • two locking screws (not shown) are used, which connect through the openings 34 of the base body 33 through the transmission element with sliding blocks 36.
  • the sliding blocks 36 penetrate with their necks 37 the guide channel 31 in the base element 25 of the support platform 11, and the right and left guide channel 22 in the base platform 9.
  • the necks 37 are in other words as guide elements in the guide channels 22, 31 a.
  • the attached to the necks 37 main body 38 of the sliding blocks 36 are arranged below the base platform 9 in the interior of the extended at the upper end of the armrest column 2 outer sleeve.
  • the main body have on the bottom 40 of the base platform 9 to directed Quer Replacementsnuten 41, which cooperate in the assembled state with attached to the underside of the base platform 9 guide webs 39 to ensure safe operation of the support platform on the base platform 9.
  • the guide grooves 41 extend parallel to the guide channels 22.
  • the armrest 4 can be connected to the support platform 11 on the armrest column. 2 mounted base platform 9 in the longitudinal and transverse directions 5, 6 in the context of the guide channels 22, 31 move.
  • a locking device is provided with an actuating device.
  • the actuating device 44 is, as well as the transmission element, arranged in the inner space 48 formed between the support platform 11 and the armrest 4.
  • the actuating device 44 comprises a transverse to the Armauflagenlteilslegi 21 and thus parallel to the guide channels 22 in the base platform 9 inside the inner space 48 slidable actuator 49.
  • the actuator 49 has two spaced apart, parallel to the guide channel 31 in the support platform 11 extending rows of teeth 52nd , 53.
  • the actuating element 49 is guided on, on or between guide webs 68, 69, which are provided extending on the one hand on the upper side 32 of the base member 25 and on the other hand on the underside 27 of the armrest 4 in the transverse direction 6.
  • compression springs 62 Two transverse to the Armauflagenlteilscardi 21 arranged compression springs 62 are used for spring loading of the actuating element 49, which thereby always urges in a locking position.
  • the compression springs 62 rest on corresponding guide pins 63 of the actuating element 49 and are supported on abutment elements 64 serving as abutments, which are provided on the underside of the armrest 4.
  • the actuating element 49 is spring-loaded held in a position in which the teeth of the rows of teeth 52, 53 engage in correspondingly provided teeth of locking elements 45, 55 for blocking the longitudinal and transverse movement.
  • a blocking element for blocking the longitudinal movement is parallel to the base body 33 of the transmission element 13 extending and staggered in height to the base 33 arranged rack 45.
  • a blocking element for blocking the transverse movement is a first gear 55, which is centrally on the main body 33 of the transmission element 13 is arranged and rotatably supported there in an opening 57.
  • the rows of teeth 52, 53 are at the same height as the teeth of the locking elements 45, 55. If the actuator 49 moves against the spring force of the two compression springs 62 in the direction parallel to the directions of the compression springs 62 extending actuating direction 66, enter the rows of teeth 52, 53rd at the same time the teeth of the locking elements 45, 55 free. The lock between the base platform 9 and the carrier platform 11 is then released.
  • For operating the actuating element 49 is an actuating button 67th
  • the actuating button 67 is released again.
  • the compression springs 62 push the actuator 49 from the open position back into the locking position.
  • the rows of teeth 52, 53 simultaneously engage in the nearest teeth of the locking elements 45, 55 a.
  • the button 67 for operating the actuating element 49 is connected to the actuating element 49 via a connecting rail 71, such that the button 67 projects only insignificantly beyond the outer edge of the armrest 4 in the locking position.
  • a connecting rail 71 For the connecting rail 71, a corresponding recess 72 is provided in the retaining wall 28.
  • the recess 73 serves to receive the button 67th
  • the rotation is formed in the form of an integrally formed on the second gear 56, hexagonal bolt which protrudes through the guide channel 31 and is secured to the first gear 55 by means of a screw 60.
  • the arranged on the base platform 9 row of teeth 59 is formed in that one of the two longitudinal sides of a centrally located in the base platform 9 receiving opening 61 is provided with teeth.
  • the receiving opening 61 is adapted to receive the second gear 56 and extends corresponding to the guide channels 22 almost over the entire width of the Base platform 9.
  • the teeth of the first row of teeth 52 are disengaged from the teeth of the rack 5 extending in the longitudinal direction 5 and formed as part of the transmission element 13.
  • the rack 45 is connected at its ends to the base 33 of the transmission element 13.
  • the ribs 46 serve for transverse guidance of the armrest 4. They protrude in the assembled state through the support platform 11, which for this purpose via slot-shaped, extending in the transverse direction 6, the guide channel 31st cutting through openings 47 features.
  • the ribs 46 penetrating the carrier platform 11 are received by slot grooves 42 introduced into the base platform 9 in the transverse direction 6 and are inserted into the base platform 9 on both sides of the receiving opening 61.
  • the movement unit of probe 67 and support platform 11 can therefore be moved freely on both sides with pressed button 67 relative to the longitudinal direction 5 fixed transmission element 13 in the transverse direction 6, ie without a guide by a gear mesh or the like. again in engagement with the teeth of the first gear 55 and the rack 45 of the transmission element 13, the lock is restored and the current transverse or longitudinal position of the armrest 4 secured relative to the armrest column 2.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Seats For Vehicles (AREA)

Description

Die Erfindung betrifft eine Armlehne, insbesondere für einen Bürostuhl. Insbesondere betrifft die Erfindung eine Armlehne mit einer vorzugsweise höhenverstellbaren Armlehnensäule, mit einer auf der Armlehnensäule gelagerten Armauflage und mit einem zur Lagerung der Armauflage auf der Armlehnensäule dienenden, an der Armlehnensäule angebrachten Lagerkopf, der eine Längs- und eine Querverstellmechanik zur Längs- bzw. Querverstellung der Armauflage aufweist. Eine solche Armlehne ist beispielsweise aus US 2004/0130200 A1 bekannt.The invention relates to an armrest, in particular for an office chair. In particular, the invention relates to an armrest with a preferably height-adjustable armrest column, with a mounted on the armrest armrest and with a support for the armrest on the armrest column serving, mounted on the armrest column bearing head, a longitudinal and a Querverstellmechanik for longitudinal or transverse adjustment the armrest has. Such an armrest is for example off US 2004/0130200 A1 known.

Derartige Armlehnen sind in verschiedenen Ausführungen aus dem Stand der Technik bekannt. Zur Verwirklichung der Längs- bzw. Querverstellung der Armauflage weist der Lagerkopf bei diesen bekannten Armlehnen zumeist konstruktiv aufwendige Verstellmechanismen auf, die darüber hinaus auch einen großen Einbauraum benötigen, so daß die Armlehnen nicht nur vergleichsweise aufwendig in ihrer Fertigung sind, sondern im Bereich der Armauflage zum Teil deutlich aufbauen. Zudem ragen die zur Betätigung der Verstellmechanismen benötigten Betätigungsvorrichtungen teilweise deutlich aus der Armlehnensäule bzw. der Armauflage heraus, was aus gestalterischen und/oder ergonomischen Gesichtpunkten häufig unerwünscht ist.Such armrests are known in various designs from the prior art. To achieve the longitudinal or transverse adjustment of the armrest, the bearing head in these known armrests on mostly structurally complex adjustment mechanisms, which also require a large installation space, so that the armrests are not only relatively expensive to manufacture, but in the armrest partly build up clearly. In addition, the actuating devices required for actuating the adjusting mechanisms sometimes protrude clearly from the armrest column or the armrest, which is often undesirable for design and / or ergonomic aspects.

Vor diesem Hintergrund ist es eine Aufgabe der vorliegenden Erfindung, einen konstruktiv besonders einfachen Verstellmechanismus für die Armauflage einer Armlehne bereitzustellen, der zudem eine besonders flache Bauweise ermöglicht.Against this background, it is an object of the present invention to provide a structurally particularly simple adjustment mechanism for the armrest of an armrest, which also allows a particularly flat design.

Diese Aufgabe wird durch eine Armlehne nach Anspruch 1 gelöst. Vorteilhafte Ausführungsformen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by an armrest according to claim 1. Advantageous embodiments of the invention are specified in the subclaims.

Eine Kernidee der Erfindung ist es, eine Verriegelungsvorrichtung vorzusehen, die ein zwischen Trägerplattform und Armauflage angeordnetes Betätigungselement zum gleichzeitigen Sperren bzw. Lösen aller beteiligter Baugruppen sowie ein zwischen Trägerplattform und Armauflage angeordnetes Übertragungselement aufweist, welches die Sperrfunktionalität des Betätigungselements auf die einzelnen Bauteile überträgt. Eine Längs- und Querverstellung kann somit mit wenigen Bauteilen auf vergleichsweise einfache Art und Weise verwirklicht werden. Dadurch verringern sich nicht nur die Herstellungskosten. Auch die Fehleranfälligkeit sinkt. Im Ergebnis wird ein besonders zuverlässiger Verstellmechanismus bereitgestellt, der sich auf kleinstem Bauraum verwirklichen läßt.An essential idea of the invention is to provide a locking device which has an actuating element arranged between the carrier platform and the armrest for the simultaneous locking or releasing of all participating assemblies as well as a transmission element arranged between the carrier platform and the armrest, which transmits the blocking functionality of the actuating element to the individual components. A longitudinal and transverse adjustment can thus be realized with a few components in a relatively simple manner. This not only reduces the manufacturing costs. The susceptibility to errors also drops. As a result, a particularly reliable adjustment mechanism is provided which can be realized in the smallest space.

Durch die vorteilhafte Doppelfunktion des Übertragungselements, welches einerseits zusammen mit der Trägerplattform die Querbewegung mitvollführt und als Führungselement für die Längsbewegung der Trägerplattform dient und andererseits Sperrelemente sowohl zum Sperren der Längsverstellung, als auch zum Sperren der Querverstellung aufweist, kann auf den Einsatz weiterer Bauteile verzichtet werden. Aufgrund des gewählten Konstruktionskonzeptes können die benötigten Komponenten im Montageendzustand so zueinander positioniert werden, daß sie den ohnehin vorhandenen Zwischenraum zwischen Trägerplattform und Armauflage ausfüllen und darüber hinaus auch mehr oder weniger ineinanderliegend angeordnet sind, wodurch sich eine extrem niedrige Bauhöhe ergibt.Due to the advantageous dual function of the transmission element, which along with the support platform on the one hand along the transverse movement and serves as a guide element for the longitudinal movement of the support platform and on the other hand blocking elements both for blocking the longitudinal adjustment, as well as for blocking the transverse adjustment, can be dispensed with the use of other components , Due to the chosen design concept, the required components can be positioned in the final assembly state to each other so that they fill the already existing gap between the carrier platform and armrest and beyond also more or less are arranged one inside the other, resulting in an extremely low height.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels näher beschrieben, das mit Hilfe der Zeichnungen erläutert wird. Hierbei zeigen:

Fig. 1
eine perspektivische Ansicht einer Armlehne in Explosionsdarstellung, schräg von oben,
Fig. 2
eine weitere perspektivische Darstellung der Armlehne in Explosionsdarstellung, schräg von unten,
Fig. 3
einen Querschnitt durch die Armlehne,
Fig. 4
einen Längsschnitt durch die Armlehne,
Fig. 5
eine Draufsicht auf die Armlehne bei entfernter Armauflage in Verriegelungsstellung,
Fig. 6
eine Draufsicht auf die Armlehne bei entfernter Armauflage in Öffnungsstellung.
The invention will be described in more detail below with reference to an embodiment which will be explained with the aid of the drawings. Hereby show:
Fig. 1
a perspective view of an armrest in an exploded view, obliquely from above,
Fig. 2
Another perspective view of the armrest in an exploded view, diagonally from below,
Fig. 3
a cross section through the armrest,
Fig. 4
a longitudinal section through the armrest,
Fig. 5
a top view of the armrest with the armrest in the locked position,
Fig. 6
a top view of the armrest with the armrest in the open position.

Die Armlehne 1 umfaßt eine höhenverstellbare, vorzugsweise teleskopartig aufgebaute Armlehnensäule 2, an deren oberen Ende ein Lagerkopf 3 angeordnet ist. Der Lagerkopf 3 trägt eine Armauflage 4 und ist zur Verschiebung der Armauflage 4 relativ zu der Armlehnensäule 2 sowohl in Längsrichtung 5, als auch in Querrichtung 6 ausgebildet. Das Auflagepolster der Armauflage 4 ist nicht abgebildet.The armrest 1 comprises a height-adjustable, preferably telescopically constructed armrest column 2, at the upper end of a bearing head 3 is arranged. The bearing head 3 carries an armrest 4 and is designed to displace the armrest 4 relative to the armrest column 2 both in the longitudinal direction 5 and in the transverse direction 6. The pad of the armrest 4 is not shown.

Der Vertikalschenkel (nicht-abgebildet) der Armlehnensäule 2 ist als Führungsständer ausgebildet, auf dem die Außenhülse der Armlehnensäule 2 in Vertikalrichtung 7 verschiebbar geführt ist. In dem Führungsständer ist eine Höhenverstellarretierung eingebaut. Der für die Höhenverstellung der Armlehne 1 vorgesehene Betätigungstaster 54 ist seitlich an der Armlehnensäule 2 angeordnet. Ein an dem Vertikalschenkel der Armlehnensäule 2 angeformter Horizontalschenkel (nicht abgebildet) dient zur Befestigung der Armlehne 1 am Unterbau eines Bürostuhles oder dergleichen.The vertical leg (not shown) of the armrest column 2 is designed as a guide stand on which the outer sleeve of the armrest column 2 is guided in the vertical direction 7 slidably. In the guide stand a Höhenverstellarretierung is installed. The measures provided for the height adjustment of the armrest 1 actuating button 54 is arranged laterally on the armrest column 2. An integrally formed on the vertical leg of the armrest column 2 horizontal leg (not shown) is used to attach the armrest 1 on the base of an office chair or the like.

Am oberen Ende der Armlehnensäule 2 ist die Außenhülse gegenüber dem eigentlichen Säulenteil nach außen erweitert und bildet so einen Träger 8 für den Lagerkopf 3. Der Lagerkopf 3 besteht im wesentlichen aus einer mit der Armlehnensäule 2 verbundenen ortsfesten Basisplattform 9 und einer mit der Armauflage 4 verbundenen, horizontal in Querrichtung 6 und Längsrichtung 5 beweglichen Trägerplattform 11.At the upper end of the armrest column 2, the outer sleeve opposite the actual pillar part is expanded outwards, thus forming a support 8 for the bearing head 3. The bearing head 3 consists essentially of a stationary base platform 9 connected to the armrest column 2 and one connected to the armrest 4 , horizontally in the transverse direction 6 and longitudinal direction 5 movable support platform eleventh

Die Außenhülse ist nach oben offen, wobei die Öffnung 12 durch die Basisplattform 9 des Lagerkopfes 3 nach Art eines Deckels verschlossen ist. Die Basisplattform 9 ist mit Hilfe einer Anzahl Fixierschrauben (nicht dargestellt) mit der Armlehnensäule 2 verbunden. Die Fixierschrauben werden durch Öffnungen 16 in der Basisplattform 9 hindurchgeführt und wirken mit Schraubgewinden zusammen, die in Stützelementen 15 vorgesehen sind, welche sich zur zusätzlichen Abstützung der Basisplattform 9 domförmig nach oben erstreckend in der Öffnung 12 der Außenhülse angeordnet sind.The outer sleeve is open at the top, wherein the opening 12 is closed by the base platform 9 of the bearing head 3 in the manner of a lid. The base platform 9 is connected to the armrest column 2 by means of a number of fixing screws (not shown). The fixing screws are passed through openings 16 in the base platform 9 and cooperate with screw threads which are provided in support elements 15, which are arranged for additional support of the base platform 9 dome-shaped upwardly extending in the opening 12 of the outer sleeve.

Die Basisplattform 9 weist zwei beabstandet voneinander angeordnete, quer zu der Armauflagenlängsrichtung 21 verlaufende, im wesentlichen eine Rechteckkontur aufweisende, geradlinig verlaufende Führungskanäle 22 auf, die sich im wesentlichen über die gesamte Breite der Basisplattform 9 erstrecken und das Maß der maximalen Verstellung der Armauflage 4 in Querrichtung 6 vorgeben.The base platform 9 has two spaced apart, transversely to the Armauflagenlängsrichtung 21 extending, substantially a rectangular contour having, rectilinear guide channels 22 which extend substantially over the entire width of the base platform 9 and the degree of maximum adjustment of the armrest 4 in Specify transverse direction 6.

Oberhalb der Basisplattform 9 ist die Trägerplattform 11 angeordnet. Die Trägerplattform 11 umfaßt ein Grundelement 25, welches mit einem randnah angeordneten, umlaufenden Stützelement 26 ein nach oben offenes Gehäuse bildet, auf das die Armauflage 4 aufgesetzt ist. Das umlaufende Stützelement 26 liegt im montierten Zustand an der Innenseite einer an der Unterseite 27 der Armauflage 4 vorgesehenen umlaufenden Haltewand 28 an und gewährleistet damit einen sicheren Halt der Armauflage 4 auf der Trägerplattform 11.Above the base platform 9, the carrier platform 11 is arranged. The support platform 11 comprises a base element 25 which, with a peripherally arranged, circumferential support member 26 forms an upwardly open housing, on which the armrest 4 is placed. The circumferential support member 26 is in the assembled state on the inside of a provided on the underside 27 of the armrest 4 circumferential retaining wall 28 and thus ensures a secure fit of the armrest 4 on the support platform eleventh

Im montierten Zustand ist die Trägerplattform 11 mit der Armauflage 4 verschraubt, wobei die Fixierschrauben (nicht abgebildet) durch entsprechende Öffnungen 29 des Grundelementes 25 hindurchstehend mit Schraubgewinden zusammenwirken, die in den sich von der Unterseite 27 der Armauflage 4 senkrecht nach unten erstreckenden domförmigen Stützelementen 15 angeordnet sind.In the mounted state, the support platform 11 is screwed to the armrest 4, wherein the fixing screws (not shown) cooperating through corresponding openings 29 of the base member 25 hindurchsteht with screw threads in the extending from the bottom 27 of the armrest 4 vertically downwardly extending dome-shaped support elements 15th are arranged.

In dem Grundelement 25 der Trägerplattform 11 ist ein in Armauflagenlängsrichtung 21 und quer zu den Führungskanälen 22 der Basisplattform 9 verlaufender Führungskanal 31 vorgesehen, der sich über einen wesentlichen Teil der Länge der Trägerplattform 11 erstreckt.In the base member 25 of the support platform 11 a in armrest longitudinal direction 21 and transverse to the guide channels 22 of the base platform 9 extending guide channel 31 is provided, which extends over a substantial part of the length of the support platform 11.

Zwischen der Trägerplattform 11 und der Armauflage 4 ist ein Übertragungselement 13 angeordnet. Der leistenförmige Grundkörper 33 des Übertragungselements 13 deckt den Führungskanal 31 teilweise ab. Der Grundkörper 33 weist im Bereich des Führungskanals 31 zwei voneinander beabstandete Durchführöffnungen 34 auf, wobei der Abstand der beiden Durchführöffnungen 34 dem Abstand der beiden Führungskanäle 22 in der Basisplattform 9 entspricht.Between the support platform 11 and the armrest 4, a transmission element 13 is arranged. The strip-shaped main body 33 of the transmission element 13 covers the guide channel 31 partially. In the region of the guide channel 31, the main body 33 has two passage openings 34 spaced apart from one another, wherein the spacing of the two passage openings 34 corresponds to the spacing of the two guide channels 22 in the base platform 9.

Zur Montage der Trägerplattform 11 an der Basisplattform 9 werden zwei Sicherungsschrauben (nicht abgebildet) verwendet, die durch die Öffnungen 34 des Grundkörpers 33 hindurch das Übertragungselement mit Kulissensteinen 36 verbinden. Die Kulissensteine 36 durchragen mit ihren Hälsen 37 den Führungskanal 31 in dem Grundelement 25 der Trägerplattform 11, sowie den rechten bzw. linken Führungskanal 22 in der Basisplattform 9. Die Hälse 37 liegen mit anderen Worten als Führungselemente in den Führungskanälen 22, 31 ein.For mounting the carrier platform 11 on the base platform 9, two locking screws (not shown) are used, which connect through the openings 34 of the base body 33 through the transmission element with sliding blocks 36. The sliding blocks 36 penetrate with their necks 37 the guide channel 31 in the base element 25 of the support platform 11, and the right and left guide channel 22 in the base platform 9. The necks 37 are in other words as guide elements in the guide channels 22, 31 a.

Die an den Hälsen 37 angebrachten Hauptkörper 38 der Kulissensteine 36 sind unterhalb der Basisplattform 9 im Inneren der am oberen Ende der Armlehnensäule 2 erweiterten Außenhülse angeordnet. Die Hauptkörper weisen auf die Unterseite 40 der Basisplattform 9 zu gerichtete Querführungsnuten 41 auf, die im montierten Zustand mit an der Unterseite der Basisplattform 9 angebrachten Führungsstegen 39 zusammenwirken, um ein sicheres Verfahren der Trägerplattform an der Basisplattform 9 zu gewährleisten. Die Führungsnuten 41 verlaufen dabei parallel zu den Führungskanälen 22.The attached to the necks 37 main body 38 of the sliding blocks 36 are arranged below the base platform 9 in the interior of the extended at the upper end of the armrest column 2 outer sleeve. The main body have on the bottom 40 of the base platform 9 to directed Querführungsnuten 41, which cooperate in the assembled state with attached to the underside of the base platform 9 guide webs 39 to ensure safe operation of the support platform on the base platform 9. The guide grooves 41 extend parallel to the guide channels 22.

Derart miteinander verbunden läßt sich die Armauflage 4 mit der Trägerplattform 11 auf der an der Armlehnensäule 2 angebrachten Basisplattform 9 in Längs- und Querrichtung 5, 6 im Rahmen der Führungskanäle 22, 31 bewegen.Thus, the armrest 4 can be connected to the support platform 11 on the armrest column. 2 mounted base platform 9 in the longitudinal and transverse directions 5, 6 in the context of the guide channels 22, 31 move.

Zur Bereitstellung einer Verriegelung von Basisplattform 9 und Trägerplattform 11 in unterschiedliche Stellungen zueinander ist eine Verriegelungsvorrichtung mit einer Betätigungseinrichtung vorgesehen.To provide a lock of base platform 9 and support platform 11 in different positions to each other a locking device is provided with an actuating device.

Die Betätigungseinrichtung 44 ist, ebenso wie das Übertragungselement, in dem zwischen der Trägerplattform 11 und der Armauflage 4 gebildeten Innenraum 48 angeordnet. Die Betätigungseinrichtung 44 umfaßt ein quer zur Armauflagenlängsrichtung 21 und damit parallel zu den Führungskanälen 22 in der Basisplattform 9 im Inneren des Innenraumes 48 verschiebbares Betätigungselement 49. Das Betätigungselement 49 verfügt über zwei voneinander beanstandete, parallel zu dem Führungskanal 31 in der Trägerplattform 11 verlaufende Zahnreihen 52, 53.The actuating device 44 is, as well as the transmission element, arranged in the inner space 48 formed between the support platform 11 and the armrest 4. The actuating device 44 comprises a transverse to the Armauflagenlängsrichtung 21 and thus parallel to the guide channels 22 in the base platform 9 inside the inner space 48 slidable actuator 49. The actuator 49 has two spaced apart, parallel to the guide channel 31 in the support platform 11 extending rows of teeth 52nd , 53.

Das Betätigungselement 49 ist an, auf bzw. zwischen Führungsstegen 68, 69 geführt, die einerseits an der Oberseite 32 des Grundelements 25 und andererseits an der Unterseite 27 der Armauflage 4 in Querrichtung 6 verlaufend vorgesehen sind.The actuating element 49 is guided on, on or between guide webs 68, 69, which are provided extending on the one hand on the upper side 32 of the base member 25 and on the other hand on the underside 27 of the armrest 4 in the transverse direction 6.

Zwei quer zu der Armauflagenlängsrichtung 21 angeordnete Druckfedern 62 dienen zur Federbeaufschlagung des Betätigungselements 49, das dadurch stets in eine Verriegelungsstellung drängt. Die Druckfedern 62 liegen auf entsprechenden Führungsbolzen 63 des Betätigungselements 49 und stützen sich an als Widerlagern dienenden Anschlagelementen 64 ab, die an der Unterseite der Armauflage 4 vorgesehen sind.Two transverse to the Armauflagenlängsrichtung 21 arranged compression springs 62 are used for spring loading of the actuating element 49, which thereby always urges in a locking position. The compression springs 62 rest on corresponding guide pins 63 of the actuating element 49 and are supported on abutment elements 64 serving as abutments, which are provided on the underside of the armrest 4.

In der Verriegelungsstellung wird das Betätigungselement 49 federbeaufschlagt in einer Position gehalten, in der die Zähne der Zahnreihen 52, 53 in entsprechend vorgesehene Zähne von Sperrelementen 45, 55 zum Sperren der Längs- und Querbewegung eingreifen.In the locking position, the actuating element 49 is spring-loaded held in a position in which the teeth of the rows of teeth 52, 53 engage in correspondingly provided teeth of locking elements 45, 55 for blocking the longitudinal and transverse movement.

Als Sperrelement zum Sperren der Längsbewegung dient eine parallel zu dem Grundkörper 33 des Übertragungselementes 13 verlaufende und in der Höhe zu dem Grundkörper 33 versetzt angeordnete Zahnstange 45. Als Sperrelement zum Sperren der Querbewegung dient ein erstes Zahnrad 55, welches mittig an dem Grundkörper 33 des Übertragungselements 13 angeordnet und dort drehbar in einer Öffnung 57 gelagert ist.As a blocking element for blocking the longitudinal movement is parallel to the base body 33 of the transmission element 13 extending and staggered in height to the base 33 arranged rack 45. As a blocking element for blocking the transverse movement is a first gear 55, which is centrally on the main body 33 of the transmission element 13 is arranged and rotatably supported there in an opening 57.

Die Zahnreihen 52, 53 liegen auf der gleichen Höhe wie die Zähne der Sperrelemente 45, 55. Wird das Betätigungselement 49 entgegen der Federkraft der beiden Druckfedern 62 in die parallel zu den Richtungen der Druckfedern 62 verlaufende Betätigungsrichtung 66 bewegt, geben die Zahnreihen 52, 53 gleichzeitig die Zähne der Sperrelemente 45, 55 frei. Die Verriegelung zwischen der Basisplattform 9 und der Trägerplattform 11 ist dann gelöst. Zur Bedienung des Betätigungselements 49 dient ein Betätigungstaster 67.The rows of teeth 52, 53 are at the same height as the teeth of the locking elements 45, 55. If the actuator 49 moves against the spring force of the two compression springs 62 in the direction parallel to the directions of the compression springs 62 extending actuating direction 66, enter the rows of teeth 52, 53rd at the same time the teeth of the locking elements 45, 55 free. The lock between the base platform 9 and the carrier platform 11 is then released. For operating the actuating element 49 is an actuating button 67th

Zur Wiederherstellung der Verriegelung wird der Betätigungstaster 67 wieder freigelassen. Die Druckfedern 62 drücken das Betätigungselement 49 von der Öffnungsstellung zurück in die Verriegelungsstellung. Die Zahnreihen 52, 53 greifen gleichzeitig in die nächstliegenden Zähne der Sperrelemente 45, 55 ein.To restore the lock, the actuating button 67 is released again. The compression springs 62 push the actuator 49 from the open position back into the locking position. The rows of teeth 52, 53 simultaneously engage in the nearest teeth of the locking elements 45, 55 a.

Der Taster 67 zum Bedienen des Betätigungselements 49 ist mit dem Betätigungselement 49 über eine Verbindungsschiene 71 verbunden, derart, daß der Taster 67 in der Verriegelungsstellung nur unwesentlich über die Außenkante der Armauflage 4 hervorsteht. Für die Verbindungsschiene 71 ist eine entsprechende Aussparung 72 in der Haltewand 28 vorgesehen. Die Aussparung 73 dient zur Aufnahme des Tasters 67.The button 67 for operating the actuating element 49 is connected to the actuating element 49 via a connecting rail 71, such that the button 67 projects only insignificantly beyond the outer edge of the armrest 4 in the locking position. For the connecting rail 71, a corresponding recess 72 is provided in the retaining wall 28. The recess 73 serves to receive the button 67th

Wird der sich mit der Trägerplattform 11 mitbewegende Taster 67 gedrückt, so geben die Zähne der zweiten Zahnreihe 53 des Betätigungselements 49 das erste Zahnrad 55 frei, siehe Fig. 6, in der ein Teil der Betätigungseinrichtung weggeschnitten ist, um einen Blick auf das Zahnrad 55 zu ermöglichen. Durch diese Freigabe ist eine Drehung des ersten Zahnrades 55 um seine Drehachse 58 möglich, die sowohl senkrecht zu der Längsrichtung 5, als auch senkrecht zu der Querrichtung 6 verläuft. Ein mit dem ersten Zahnrad 55 über eine Verdrehsicherung formschlüssig verbundenes zweites Zahnrad 56, welches unterhalb der Trägerplattform 11 angeordnet ist, kann sich auf einer in Querrichtung 6 an der Basisplattform 9 angeordneten Zahnreihe 59 abwälzen, wodurch eine geführte Querbewegung der Armauflage 4 erfolgt. Die Verdrehsicherung ist in Form eines an dem zweiten Zahnrad 56 angeformten, sechseckigen Bolzens ausgebildet, der durch den Führungskanal 31 hindurchragt und an dem ersten Zahnrad 55 mittels einer Schraube 60 gesichert ist. Die an der Basisplattform 9 angeordneten Zahnreihe 59 wird dadurch gebildet, daß eine der beiden Längsseiten einer mittig in der Basisplattform 9 angeordneten Aufnahmeöffnung 61 mit Zähnen versehen ist. Die Aufnahmeöffnung 61 ist zur Aufnahme des zweiten Zahnrades 56 ausgebildet ist und erstreckt sich entsprechend der Führungskanäle 22 nahezu über die gesamte Breite der Basisplattform 9. Bei gedrücktem Taster 67 kann somit die Bewegungseinheit aus Taster 67, Trägerplattform 11 und Übertragungselement 13 eine Bewegung in Querrichtung 6 vollführen. Dabei handelt es sich um eine durch den Eingriff des zweiten Zahnrades 56 in die Zahnreihe 59 bestimmte und somit definiert geführte Bewegung. Die Länge der Zahnreihe 59 bestimmt somit das Maß der möglichen Querbewegung der Armauflage 4.If the button 67 moving with the carrier platform 11 is pressed, the teeth of the second row of teeth 53 of the actuating element 49 release the first gear 55, see FIG Fig. 6 in that a portion of the actuator is cut away to allow a view of the gear 55. By this release, a rotation of the first gear 55 about its axis of rotation 58 is possible, which is both perpendicular to the longitudinal direction 5, as well as perpendicular to the transverse direction 6. A form-lockingly connected to the first gear 55 via an anti-rotation second gear 56, which is arranged below the support platform 11, can roll on a transversely arranged on the base platform 9 9 tooth row 59, whereby a guided transverse movement of the armrest 4 takes place. The rotation is formed in the form of an integrally formed on the second gear 56, hexagonal bolt which protrudes through the guide channel 31 and is secured to the first gear 55 by means of a screw 60. The arranged on the base platform 9 row of teeth 59 is formed in that one of the two longitudinal sides of a centrally located in the base platform 9 receiving opening 61 is provided with teeth. The receiving opening 61 is adapted to receive the second gear 56 and extends corresponding to the guide channels 22 almost over the entire width of the Base platform 9. When the push button 67 is pressed, the movement unit comprising the pushbutton 67, the support platform 11 and the transmission element 13 can thus perform a movement in the transverse direction 6. It is a by the engagement of the second gear 56 in the row of teeth 59 certain and thus defined guided movement. The length of the row of teeth 59 thus determines the degree of possible transverse movement of the armrest. 4

Bei gedrücktem Taster 67 gelangen zudem die Zähne der ersten Zahnreihe 52 außer Eingriff mit den Zähnen der sich in Längsrichtung 5 erstreckenden, als Teil des Übertragungselements 13 ausgebildeten Zahnstange 45. Die Zahnstange 45 ist an ihren Enden mit dem Grundkörper 33 des Übertragungselementes 13 verbunden. Zusätzlich dienen zwei Rippen 46 der Verbindung zwischen Übertragungselement 13 und Zahnstange 45. Die Rippen 46 dienen zur Querführung der Armauflage 4. Sie ragen im montierten Zustand durch die Trägerplattform 11 hindurch, welche zu diesem Zweck über schlitzförmige, in Querrichtung 6 verlaufende, den Führungskanal 31 schneidende Durchtrittsöffnungen 47 verfügt. Die die Trägerplattform 11 durchdringenden Rippen 46 werden von in Querrichtung 6 in der Basisplattform 9 eingebrachten Schlitznuten 42 aufgenommen, die zu beiden Seiten der Aufnahmeöffnung 61 in die Basisplattform 9 eingebracht sind. Die Bewegungseinheit aus Taster 67 und Trägerplattform 11 kann daher bei gedrücktem Taster 67 relativ zu dem in Längsrichtung 5 feststehenden Übertragungselement 13 in Querrichtung 6 beidseitig frei verfahren werden, d.h. ohne eine Führung durch einen Zahnradeingriff oder dergleichen. wieder in Eingriff mit den Zähnen des ersten Zahnrades 55 bzw. der Zahnstange 45 des Übertragungselements 13, wird die Verriegelung wieder hergestellt und die aktuelle Quer- bzw. Längsposition der Armauflage 4 relativ zu der Armlehnensäule 2 gesichert.When the push button 67 is pressed in addition, the teeth of the first row of teeth 52 are disengaged from the teeth of the rack 5 extending in the longitudinal direction 5 and formed as part of the transmission element 13. The rack 45 is connected at its ends to the base 33 of the transmission element 13. In addition, serve two ribs 46 of the connection between the transmission element 13 and rack 45. The ribs 46 serve for transverse guidance of the armrest 4. They protrude in the assembled state through the support platform 11, which for this purpose via slot-shaped, extending in the transverse direction 6, the guide channel 31st cutting through openings 47 features. The ribs 46 penetrating the carrier platform 11 are received by slot grooves 42 introduced into the base platform 9 in the transverse direction 6 and are inserted into the base platform 9 on both sides of the receiving opening 61. The movement unit of probe 67 and support platform 11 can therefore be moved freely on both sides with pressed button 67 relative to the longitudinal direction 5 fixed transmission element 13 in the transverse direction 6, ie without a guide by a gear mesh or the like. again in engagement with the teeth of the first gear 55 and the rack 45 of the transmission element 13, the lock is restored and the current transverse or longitudinal position of the armrest 4 secured relative to the armrest column 2.

Unter Verwendung des erfinderischen Grundgedankens und der in der Beschreibung erläuterten Ausführungsform der Erfindung ergeben sich für einen Fachmann eine Vielzahl weiterer Ausführungsbeispiele, die jedoch an dieser Stelle nicht im einzelnen beschrieben werden können. Es wird darauf hingewiesen, daß alle in der Beschreibung, den Ansprüchen und den Zeichnungen dargestellten Merkmale sowohl einzeln als auch in beliebiger Kombination miteinander erfindungswesentlich sein können.Using the inventive concept and the embodiment of the invention explained in the description, a large number of further exemplary embodiments will be apparent to a person skilled in the art, which, however, can not be described in detail here. It should be noted that all features illustrated in the description, the claims and the drawings can be essential to the invention both individually and in any desired combination.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Armlehnearmrest
22
Armlehnensäulearmrests column
33
Lagerkopfbearing head
44
Armauflagearmrest
55
Längsrichtunglongitudinal direction
66
Querrichtungtransversely
77
Vertikalrichtungvertical direction
88th
Trägercarrier
99
Basisplattformbase platform
1010
(frei)(free)
1111
Trägerplattformcarrier platform
1212
Öffnungopening
1313
Übertragungselementtransmission element
1414
(frei)(free)
1515
Stützelementsupport element
1616
Öffnungopening
1717
(frei)(free)
1818
(frei)(free)
1919
(frei)(free)
2020
(frei)(free)
2121
ArmauflagenlängsrichtungArmauflagenlängsrichtung
2222
Führungskanalguide channel
2323
(frei)(free)
2424
(frei)(free)
2525
Grundelementbasic element
2626
Stützelementsupport element
2727
ArmauflagenunterseiteArmauflagenunterseite
2828
Haltewandretaining wall
2929
Öffnungopening
3030
(frei)(free)
3131
Führungskanalguide channel
3232
GrundelementoberseiteBasic element top
3333
Grundkörperbody
3434
DurchführöffnungThrough opening
3535
(frei)(free)
3636
Kulissensteinsliding block
3737
Halsneck
3838
Hauptkörpermain body
3939
Führungsstegguide web
4040
Unterseitebottom
4141
Führungsnutguide
4242
Schlitznutslot groove
4343
(frei)(free)
4444
Betätigungseinrichtungactuator
4545
Zahnstangerack
4646
Ripperib
4747
DurchtrittsöffnungThrough opening
4848
Innenrauminner space
4949
Betätigungselementactuator
5050
(frei)(free)
5151
(frei)(free)
5252
erste Zahnreihefirst row of teeth
5353
zweite Zahnreihesecond row of teeth
5454
Betätigungstasteroperating key
5555
erstes Zahnradfirst gear
5656
zweites Zahnradsecond gear
5757
Öffnungopening
5858
Drehachseaxis of rotation
5959
Zahnreiheteeth
6060
Sicherungsschraubelocking screw
6161
Aufnahmeöffnungreceiving opening
6262
Druckfedercompression spring
6363
Führungsbolzenguide pins
6464
Widerlagerabutment
6565
Innenseiteinside
6666
Betätigungsrichtungoperating direction
6767
Betätigungstasteroperating key
6868
Führungsstegguide web
6969
Führungsstegguide web
7070
(frei)(free)
7171
Verbindungsschieneconnecting rail
7272
Aussparungrecess
7373
Aussparungrecess

Claims (9)

  1. Armrest (1), in particular for an office chair,
    - having a preferably height-adjustable armrest column (2),
    - having an arm support (4) mounted on the armrest column (2) and
    - having a bearing head (3) being attached to the armrest column (2), said bearing head (3) serves for the bearing arrangement of the arm support (4) on the armrest column (2) and has a longitudinal and a transverse adjustment mechanism for longitudinal or transverse adjustment of the arm support (4),
    wherein the bearing head (3) comprises:
    - a stationary base platform (9) which is connected to the armrest column (2),
    - a movable carrier platform (11) which is connected to the arm support (4) and
    - a locking device for detachably locking the base platform (9) and the carrier platform (11) in different positions with respect to each other,
    and wherein the locking device comprises:
    - a transfer element (13), which is arranged between carrier platform (11) and arm support (4) and is connected to the base platform (9) and which has first blocking elements (45) for blocking the longitudinal adjustment of the arm support (4) and second blocking elements (55, 56) for blocking the transverse adjustment of the arm support (4), and
    - an actuating element (49), which is arranged between carrier platform (11) and arm support (4) and is provided with a control button (67) for manual actuation and which has elements for simultaneously blocking or releasing the first and second blocking elements (45, 55) of the transfer element (13), characterized in that the transfer element (13) is movable in the transverse direction (6) in relation to the base platform (9), but is stationary in the longitudinal direction (5).
  2. Armrest (1) according to Claim 1, wherein the carrier platform (11) has a guide channel (31) which extends in the longitudinal direction (6) and is for receiving a part (56) of the transfer element (13), in such a manner that the carrier platform (11) is movable in the longitudinal direction (6) in relation to the transfer element (13).
  3. Armrest (1) according to Claim 1 or 2, wherein, when the arm support (4) is adjusted longitudinally, the support platform (11) and the actuating element (13) form one unit which is movable in relation to the transfer element (13).
  4. Armrest (1) according to Claim 3, wherein the longitudinal movement is a free travel movement.
  5. Armrest (1) according to one of Claims 1 to 4, wherein in the case of a transverse adjustment, the carrier platform (11) and the actuating element (49), together with the transfer element (13), form one unit which is movable in relation to the base platform (9).
  6. Armrest (1) according to Claim 5, wherein the transverse movement is a guided movement where the second blocking element (55) or an element (56) that is operatively connected thereto is guided in the base platform (9).
  7. Armrest (1) according to one of Claims 1 to 6, wherein the first blocking elements (45) of the transfer element (13) are formed by a toothed rack which extends in the longitudinal direction (5).
  8. Armrest (1) according to one of Claims 1 to 7, wherein the second blocking elements (55, 56) of the transfer element (13) include a toothed wheel (55) which is rotatably mounted in the transfer element (13) and is movable with the transfer element (13) in the transverse direction (6).
  9. Armrest (1) according to one of Claims 1 to 8, wherein the elements of the actuating element (49) for blocking or releasing the first and second blocking elements (45, 55) are formed by at least one row of teeth (52, 53) which extends in the longitudinal direction (5).
EP11010142.5A 2011-01-10 2011-12-22 Armrest, in particular for an office chair Active EP2474249B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202011001282U DE202011001282U1 (en) 2011-01-10 2011-01-10 Armrest, especially for an office chair
DE102011008172A DE102011008172A1 (en) 2011-01-10 2011-01-10 Armrest, especially for an office chair

Publications (2)

Publication Number Publication Date
EP2474249A1 EP2474249A1 (en) 2012-07-11
EP2474249B1 true EP2474249B1 (en) 2013-08-07

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ID=60550818

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Country Status (3)

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US (1) US9113711B2 (en)
EP (1) EP2474249B1 (en)
DE (2) DE102011008172A1 (en)

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CA2912548A1 (en) * 2007-03-13 2008-09-13 Jay R. Machael Adjustable arm for chair
US7387341B1 (en) * 2007-03-16 2008-06-17 Po-Chuan Tsai Armrest having position adjusting function
US8016360B2 (en) * 2007-08-01 2011-09-13 Hni Technologies Inc. Adjustable arm rest for chair
DE202009010587U1 (en) * 2009-08-05 2010-12-09 Bock 1 Gmbh & Co. Kg Armrest, especially for an office chair
GB2477111B (en) * 2010-01-22 2011-12-21 Sian-Mao Wang Armrest assembly with armrest capable of moving forward and backward and rotating sideways

Cited By (3)

* 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

Also Published As

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DE102011008172A1 (en) 2012-07-12
US20120175934A1 (en) 2012-07-12
US9113711B2 (en) 2015-08-25
DE202011001282U1 (en) 2012-04-18
EP2474249A1 (en) 2012-07-11

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