EP1457140B1 - Support de bras, notamment pour chaises de bureau et chaises tournantes - Google Patents

Support de bras, notamment pour chaises de bureau et chaises tournantes Download PDF

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Publication number
EP1457140B1
EP1457140B1 EP04004791A EP04004791A EP1457140B1 EP 1457140 B1 EP1457140 B1 EP 1457140B1 EP 04004791 A EP04004791 A EP 04004791A EP 04004791 A EP04004791 A EP 04004791A EP 1457140 B1 EP1457140 B1 EP 1457140B1
Authority
EP
European Patent Office
Prior art keywords
insert
arm rest
slide
transverse
lever
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
Application number
EP04004791A
Other languages
German (de)
English (en)
Other versions
EP1457140A3 (fr
EP1457140A2 (fr
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
Original Assignee
Froli Kunststoffwerk Heinrich Fromme OHG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Froli Kunststoffwerk Heinrich Fromme OHG filed Critical Froli Kunststoffwerk Heinrich Fromme OHG
Publication of EP1457140A2 publication Critical patent/EP1457140A2/fr
Publication of EP1457140A3 publication Critical patent/EP1457140A3/fr
Application granted granted Critical
Publication of EP1457140B1 publication Critical patent/EP1457140B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to an armrest, in particular for an office or swivel chair with adjustability in depth. Width and angle according to the preamble of claim 1.
  • Office chairs or swivel chairs often have approximately at right angles to the backrest arranged armrests, with a backrest associated with the rear dome and a front dome, which are fixed with an armrest stand on the seat frame. It is known, such armrests form height adjustable, so that the user of the chair can adjust the height of the armrests themselves according to his wishes.
  • the position of the armrests in relation to the backrest of the chair in the horizontal plane is not adjustable, whereby a fixed position of the armrests is given.
  • Other positioning as caused for example by changing positions of the arm with the working hand - such as due to a constant change from the keyboard to the mouse at a computer workstation - does not allow this arrangement.
  • Such armrests are known for example from the German utility model DE 298 09 099 or DE 299 01 666. These armrests are held aligned on an armrest stand on the seat frame of the chair substantially perpendicular to a backrest, arranged vertically adjustable, and provided with an armrest with Armauflagepolster, which has a back facing the back and facing away from this front dome.
  • This armrest is formed by a hollow body, which is assembled form-fitting from a shell with Armauflagepolster and a lower part with lower plate and is mounted on an upper end plate of the armrest support.
  • the adjustment options described there are limited because the locking means allow only limited adjustments.
  • an insert is provided which is fixedly connected to the armrest support, and has the transverse grooves, engage in the provided on the inside of the cross slide guide rails and so define the mobility of the cross slide.
  • the longitudinal slide is designed as a latching trough plate whose locking recesses are directed towards the interior of the cavity.
  • these locking recesses acts at least one locking pin, which has the insert, and which is aligned at right angles to the longitudinal slide.
  • the head of this locking pin engages in one of these locking recesses and fixes the corresponding position of the armrest, including the locking pin is pressed by elastic forces in its rest position in one of the selected locking recesses.
  • the locking pin is designed to be displaceable in the axial direction and pressed with a compression spring supported on the insert into the locking position.
  • the arrangement of the detent recesses, distributed over a region of the inside of the longitudinal slide ensures that in addition to the longitudinal movement and the transverse movement is fixed by means of the locking pin.
  • the insert bridge-like design and the carriage insert is arranged as a separate part in the cavity of the bridge, so that the slide insert in this cavity of the bridge-like insert is rotatable relative to this, wherein this slide insert has the transverse grooves, which cooperate with the guide rails of the cross slide, whereby the armrest follows a pivoting of the cross slide relative to the insert.
  • the slide insert is provided with a second locking pin which extends at right angles thereto.
  • a blocking device is provided with which at least the longitudinal and transverse movement of the locking pin can be locked in its axial mobility.
  • the locking pin is guided with its end opposite the latching head by the insert or the carriage insert so that this end emerges on the body of the insert at least when changing the Armauflagen position.
  • a blocking lever is provided which has a backdrop that can be adjusted by moving or pivoting so that the free end of the locking pin gets up or goes free.
  • the locking pin can not be lowered, and the detent position is blocked; if the detent pin is released, it can be lowered, so that the detent head can slide during a movement out of the initially set detent recess and engage in a new detent recess.
  • this armrest is made possible by all or at least some of the individual parts as plastic injection-molded parts are formed. This allows a rational and so cost-effective production, which leads to dimensionally stable parts. The dimensional stability thus ensured also ensures that the assembly of the armrest can be carried out economically.
  • An armrest for an office or swivel chair is placed with an armrest 2 on an armrest support 1, which is attached by means of an armrest holder 4 to the frame of the rotary or office chair (not shown in detail).
  • an armrest support 1 is inserted into the armrest holder 4 that a height adjustment mechanism (not shown in detail) allows adjusting the altitude of the armrest to the height of the user.
  • the armrest holder 4 is sleeve-shaped and takes the armrest support 1 in the manner of a telescopic guide.
  • the height adjustment mechanism is arranged in the armrest holder 4 and can be triggered with the release lever 3.
  • the armrest support 1 has at its led out of the armrest holder 4, free end on an upper end plate 1.1, which is provided with means for fastening the armrest 2.
  • This armrest 2 is fixed with fastening screws 2.3 on the longitudinal slide 22 of the lower part 20.
  • the armrest 2 itself is provided with the cushion support 2.1 and a circumferential overlap 2.2.
  • an insert 30 is arranged, which is screwed on the mounting screws 1.2 with the upper end plate 1.1 Armrestenismes 1, said fixing screws 1.2 through slots 28 in the bottom of the insert 30th are guided.
  • This insert 30 is so - apart from the height adjustment - to be regarded as quasi-frame-fixed.
  • the lower part 20 of the armrest 2 is freely movable relative to this insert 30, its storage can be regarded as floating.
  • this has an insert piece receptacle 26 which is covered with the longitudinal slide 22.
  • This longitudinal slide 22 is screwed by means of the lower part screws formed by 4 lower part screws 21 to the lower part holder 26, wherein the lower part screws 21 extend through aligned in the longitudinal direction of the arm rest 2 slots 23.
  • a longitudinal movement of the longitudinal slide 22 is achieved with respect to the insert piece receptacle 26, wherein the longitudinal slide 22 is provided with side guides 25.
  • the insert piece 26 facing the inside of the longitudinal slide 22 is provided with locking recesses 24 which cooperate with at least one corresponding locking head on the insert 30 so that the latching noses pressed under the action of elastic forces in the corresponding detent recesses 24 become. If a force is exerted on the armrest, the locking head gives way, the fixation is canceled and the armrest 2 can be moved freely.
  • a first locking pin 35 is provided on the insert piece 30, which is arranged at right angles to the insert piece 30 projecting. The cooperating with the longitudinal slide 22 end of this locking pin 35 is formed as a latching head 36, while the opposite free pin end 37 is guided by the body of the insert so that the locking pin is movable in its axial direction.
  • a spring 38 is provided, which is supported on the insert body 30, so that the latching head 36 is pressed in the direction of the longitudinal slide 22.
  • the insert 30 is recessed bridge-like in its center.
  • a cross slide 40 is arranged in the thus formed bridge-like cavity 31, a cross slide 40 is arranged. This is guided in transverse guides 27, for which purpose 40 transverse grooves 41 are provided in the underside of the cross slide, in which the transverse guides 27 engage.
  • the entire lower part 20 relative to the insert 30 is also movable in the transverse direction, it goes without saying that the geometry of insert 30 and insert receptacle 26 specify the limits of this mobility and need to be adapted.
  • this bridge-like cavity 31 and the transverse slide 40 inserted therein are (partially) cylindrical, so that the lower part 20 is also pivotable relative to the insert 30 (see Fig. 2).
  • this cross slide is provided with a second locking pin 45, the locking head 46 cooperate with locking recesses 32 in the bridge-like cavity.
  • These locking recesses 32 are distributed in a circular arc, wherein the radius of the circle corresponds to the distance of the second locking pin 45 from the center of the cavity 31 forming cylinder.
  • the locking head 46 with one of the locking recesses 32 cooperate so that the pivotal movement is fixed.
  • the locking head 46 is formed by the insert 30 facing the end of the second locking pin 45, while its opposite, free end is guided by the body of the cross slide 40, wherein the locking head 46 by a supported in the cross slide 40 spring 48 in the selected Rastmulden 32 is pressed.
  • the release of the fixation takes place in the same manner as described in connection with the release of the fixation of the longitudinal or transverse movement.
  • a blocking lever 50 is provided so that its provided at the end of the lever 51 under the or by the body of the insert 30 and the cross slide 40 guided free end / ends of the first Locking pin 35 and / or the second locking pin 45 is so that their free ends 37 and 47 are supported thereon.
  • This support blocks the mobility of the locking pins 35 and 45 in its axial direction, so that when acting on the armrest 2 forces the locking heads 36 and 46 can slide with the corresponding locking recesses 24 and 32, respectively.
  • the free mobility of the armrest 2 is blocked in the degree of freedom associated with this locking pin.
  • the blocking lever is displaced so that the lower part of the link 51 comes to rest under the free end 37 and 47 of the locking pin 35 and 45, respectively.
  • the respective locking pin can move 35 or 45 in the axial direction
  • the associated locking head can slide from the associated latching recesses 24 and 32, so that acting on the armrest 2 forces this to change the depth or width displaced in the longitudinal direction or in the transverse direction and / or can also be pivoted to change the angular position of the armrest 2.
  • the blocking lever 50 is pivotable.
  • the blocking lever 50 has a stub shaft 52, which is guided by the insert piece receiving 20 and the upper end plate 1.1 Armrestenmons 1, and on the form and locks an actuating lever 53 is set so that it is led out on the armrest support 1 and is available as a control element to remove the blockage.
  • the slide 51 of the blocking lever 50 can also be designed so that the cancellation of the blocking of the longitudinal and transverse movement on the one hand and the pivoting movement on the other hand takes place in different positions of the blocking lever 50.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Seats For Vehicles (AREA)
  • Special Chairs (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Peptides Or Proteins (AREA)

Claims (15)

  1. Accoudoir, en particulier pour un bureau ou une chaise tournante pouvant être réglée en hauteur, largeur et inclinaison et comportant un repose-bras (2) et un support d'accoudoir (1), dans lequel, dans le repose-bras (2), entre un coulisseau longitudinal (22) et un logement d'insert (26), est disposé un insert (30) relié fermement au support d'accoudoir (1), le logement d'insert (26) présentant au moins une fenêtre (28) à travers laquelle sont guidés des moyens de raccordement (1.2), qui relient le support d'accoudoir (1) à l'insert (30), et le logement d'insert (26) pouvant se déplacer par rapport à l'insert (30) et être fixé dans la position choisie avec des moyens d'encliquetage prévus sur l'insert (30),
    caractérisé en ce que le coulisseau longitudinal (22) et le logement d'insert (26) sont assemblés de telle sorte qu'il est formé un espace vide entre les deux, dans lequel est prévu l'insert (30) relié fermement au support d'accoudoir (1), et en ce que la face intérieure du coulisseau longitudinal (22) présente des cavités d'encliquetage (24) réparties en surface, qui permettent une fixation de la position réglée du repose-bras (2), en coopérant avec au moins une broche d'encliquetage (35), faisant office de moyen d'encliquetage, disposée dans l'insert (30) et s'étendant perpendiculairement par rapport à celui-ci, la broche d'encliquetage (35) guidée de manière à pouvoir se déplacer axialement dans l'insert (30) présentant une tête d'encliquetage (36), qui est appuyée dans l'une des cavités d'encliquetage (24) sous l'effet d'une force exercée par un ressort (38) reposant dans l'insert.
  2. Accoudoir selon la revendication 1, caractérisé en ce que les évidements prévus dans le coulisseau longitudinal (22), représentant des passages pour les vis de fixation (1.2), sont configurés comme des trous longitudinaux (23) s'étendant dans la direction longitudinale du repose-bras (2).
  3. Accoudoir selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que, sur l'insert (30), sont ménagées des rainures transversales (41), lesquelles coopèrent avec des passages transversaux (27) qui sont disposés au fond du logement d'insert (26), les passages prévus au fond du logement d'insert (26) pour les vis de fixations (1.2) étant configurés comme des trous longitudinaux (28) s'étendant dans la direction transversale par rapport au repose-bras (2).
  4. Accoudoir selon la revendication 3, caractérisé en ce que l'insert (30) est évidé à la manière d'un pont et, dans l'espace vide ainsi formé est alors inséré un coulisseau transversal (40) qui présente des rainures transversales (41), lesquelles coopèrent avec des barres de guidage (27) au fond du logement d'insert (26).
  5. Accoudoir selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'évidement (31) de type pont de l'insert (30) a une section en partie cylindrique, dans laquelle est inséré le coulisseau transversal (40), de manière à pouvoir pivoter autour d'un axe central.
  6. Accoudoir selon la revendication 5, caractérisé en ce que le coulisseau transversal (40) permettant de fixer le déplacement pivotant est doté d'une deuxième broche d'encliquetage (45) mobile axialement, qui s'étend perpendiculairement à celui-ci, et coopère avec des cavités d'encliquetage (32) prévues sous le renfoncement (31) ménagé en forme de pont de l'insert (30) et disposées sur une trajectoire circulaire, dont le rayon correspond à la distance entre cette deuxième broche d'encliquetage (45) et l'axe de pivotement central du coulisseau transversal (40) dans l'insert (30), la deuxième broche d'encliquetage (45) étant appuyée sous l'effet d'une force élastique dans sa position d'encliquetage, dans l'une des cavités d'encliquetage (32) se trouvant dans l'élément (31) évidé sous la forme d'un pont de l'insert (30).
  7. Accoudoir selon la revendication 6, caractérisé en ce que la deuxième broche d'encliquetage (45) est dotée d'un ressort (48) prenant appui dans le coulisseau transversal (40), destiné à produire la force élastique.
  8. Accoudoir selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'il est prévu un dispositif de blocage, permettant de bloquer au moins la première broche d'encliquetage (35), fixant le déplacement longitudinal et transversal, dans le cadre de sa mobilité axiale.
  9. Accoudoir selon la revendication 8, caractérisé en ce que la broche d'encliquetage (35) est guidée, avec son extrémité (37) opposée à la tête d'encliquetage (36), au travers de l'insert (30) ou du coulisseau transversal (40), de telle sorte que cette extrémité (37) sort du corps de l'insert (30) ou de l'insert de coulisseau (40) au moins lors de la modification de la position du repose-bras, et en ce qu'il est prévu un levier de blocage (50), avec une coulisse (51), qui peut être réglée de telle sorte que, par coulissement ou pivotement, l'extrémité libre (37) de la broche d'encliquetage (35) repose sur celle-ci ou s'en dégage.
  10. Accoudoir selon l'une quelconque des revendications 8 ou 9, caractérisé en ce que le levier de blocage (50) est configuré sous la forme d'un levier coulissant.
  11. Accoudoir selon l'une quelconque des revendications 8 ou 9, caractérisé en ce que le levier de blocage (50) est configuré sous la forme d'un levier pivotant.
  12. Accoudoir selon l'une quelconque des revendications 10 ou 11, caractérisé en ce que la coulisse (51) du levier de blocage (50) est configurée de telle sorte que, dans la position de blocage, toutes les broches d'encliquetage (35, 45) pouvant être bloquées reposent sur la coulisse (51) et, dans la position de dégagement, au moins l'une des broches d'encliquetage (35, 45), de préférence les deux broches d'encliquetage (35, 45) peut / peuvent se déplacer librement.
  13. Accoudoir selon l'une quelconque des revendications 10, 11 ou 12, caractérisé en ce que levier de blocage (50) présente des moyens de rappel, permettant le retour dans la position de blocage.
  14. Accoudoir selon l'une quelconque des revendications 10, 11 ou 12, caractérisé en ce que le levier de blocage (50) configuré sous la forme de levier pivotant est doté d'un arbre pivotant (52), qui est guidé au travers de la plaque supérieure (1.1) du support d'accoudoir (1) et, au niveau de son extrémité libre, il est prévu un levier d'actionnement (53).
  15. Accoudoir selon l'une quelconque des revendications 1 à 14, caractérisé en ce que l'ensemble ou au moins certains des éléments individuels sont configurés sous la forme d'éléments en matière plastique moulés par injection.
EP04004791A 2003-03-13 2004-03-02 Support de bras, notamment pour chaises de bureau et chaises tournantes Expired - Lifetime EP1457140B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20304136U 2003-03-13
DE20304136U DE20304136U1 (de) 2003-03-13 2003-03-13 Armstütze, insbesondere für Büro- und Drehstühle

Publications (3)

Publication Number Publication Date
EP1457140A2 EP1457140A2 (fr) 2004-09-15
EP1457140A3 EP1457140A3 (fr) 2005-02-09
EP1457140B1 true EP1457140B1 (fr) 2006-06-28

Family

ID=32115683

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04004791A Expired - Lifetime EP1457140B1 (fr) 2003-03-13 2004-03-02 Support de bras, notamment pour chaises de bureau et chaises tournantes

Country Status (4)

Country Link
EP (1) EP1457140B1 (fr)
AT (1) ATE331450T1 (fr)
DE (2) DE20304136U1 (fr)
ES (1) ES2268510T3 (fr)

Cited By (1)

* 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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7234779B2 (en) 2005-04-08 2007-06-26 Steelcase Development Corporation Armrest with height adjustment mechanism
DE202005005988U1 (de) * 2005-04-13 2005-07-14 Bock 1 Gmbh & Co. Kg Armlehne, insbesondere für einen Bürostuhl
DE202011001282U1 (de) 2011-01-10 2012-04-18 Bock 1 Gmbh & Co. Kg Armlehne, insbesondere für einen Bürostuhl
US11304528B2 (en) 2012-09-20 2022-04-19 Steelcase Inc. Chair assembly with upholstery covering
WO2014143841A1 (fr) * 2013-03-15 2014-09-18 Haworth, Inc. Ensemble bras réglable pour une chaise

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6076892A (en) * 1997-06-04 2000-06-20 Knoll, Inc. Multi-adjustable armrest assembly
US5971484A (en) * 1997-12-03 1999-10-26 Steelcase Development Inc. Adjustable armrest for chairs
US5927811A (en) * 1998-02-27 1999-07-27 Shin Yen Enterprise Co., Ltd. Adjustable chair-armrest assembly
AT407003B (de) * 1999-04-12 2000-11-27 Sdm Hansen Ag Armauflage für ein sitzmöbel
US6460932B1 (en) * 2000-06-09 2002-10-08 Krueger International, Inc. Arm height adjustment mechanism for a chair
JP4518649B2 (ja) * 2000-08-11 2010-08-04 株式会社岡村製作所 椅子の肘掛け装置
DE20112915U1 (de) * 2001-08-09 2002-09-19 Froli Kunststoffwerk Fromme H Armlehne insbesondere für Drehstühle

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

Publication number Publication date
DE20304136U1 (de) 2004-04-15
ES2268510T3 (es) 2007-03-16
ATE331450T1 (de) 2006-07-15
EP1457140A3 (fr) 2005-02-09
DE502004000855D1 (de) 2006-08-10
EP1457140A2 (fr) 2004-09-15

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