EP0815777B1 - Arm rest for office chairs - Google Patents

Arm rest for office chairs Download PDF

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Publication number
EP0815777B1
EP0815777B1 EP97110265A EP97110265A EP0815777B1 EP 0815777 B1 EP0815777 B1 EP 0815777B1 EP 97110265 A EP97110265 A EP 97110265A EP 97110265 A EP97110265 A EP 97110265A EP 0815777 B1 EP0815777 B1 EP 0815777B1
Authority
EP
European Patent Office
Prior art keywords
armrest
column
ball
backrest
socket
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
EP97110265A
Other languages
German (de)
French (fr)
Other versions
EP0815777A2 (en
EP0815777A3 (en
Inventor
Johannes Uhlenbrock
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.)
Dauphin Entwicklungs und Beteiligungs GmbH
Original Assignee
Friedrich W Dauphin GmbH and Co
Dauphin Entwicklungs und Beteiligungs GmbH
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 Friedrich W Dauphin GmbH and Co, Dauphin Entwicklungs und Beteiligungs GmbH filed Critical Friedrich W Dauphin GmbH and Co
Publication of EP0815777A2 publication Critical patent/EP0815777A2/en
Publication of EP0815777A3 publication Critical patent/EP0815777A3/en
Application granted granted Critical
Publication of EP0815777B1 publication Critical patent/EP0815777B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C1/00Chairs adapted for special purposes
    • A47C1/02Reclining or easy chairs
    • A47C1/022Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/03Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests
    • A47C1/0308Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests adjustable by rotation
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C1/00Chairs adapted for special purposes
    • A47C1/02Reclining or easy chairs
    • A47C1/022Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/03Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests
    • A47C1/0303Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests adjustable rectilinearly in vertical direction

Definitions

  • the invention relates to an armrest for office chairs with an office chair attachable backrest column and a backrest body attached to it.
  • this is designed as a universal joint Ball joint characterized by a relatively complex construction, which can be fixed in position by a voluminous screw clamp is.
  • the ball joint is by means of a Eccentric clamp arranged on the backrest body can be determined.

Abstract

The main part of the armrest (2) is mounted on the column (1) by a ball-and-socket joint (8). This joint is formed by a shell part (1) of the column, and a cap-shaped part (10) on the main armrest body gripping over the shell part. The armrest body is fixed to the column by a fastening (12). This consists of an eccentric clamp and a swivel-mounted eccentric lever between reinforcement ridges.

Description

Die Erfindung betrifft eine Armlehne für Bürostühle mit einer am Bürostuhl anbringbaren Lehnensäule und einem daran gelagerten Lehnenkörper.The invention relates to an armrest for office chairs with an office chair attachable backrest column and a backrest body attached to it.

Bei der Ausrüstung von Büro-Arbeitsplätzen spielen in zunehmendem Maße ergonomische Gesichtspunkte eine Rolle. Für Bürostühle bedeutet dies, daß eine möglichst optimale Anpassung der einzelnen Stuhlelemente an den individuellen Körperbau und die Tätigkeit des Benutzers möglich sein soll. In diesem Zusammenhang ist es bekannt, Sitzfläche und Rückenlehne in Höhe und Neigung verstellen zu können. Ferner sind höhenverstellbare Armlehnen gängig.When it comes to equipping office workplaces, play increasingly ergonomic aspects matter. For office chairs, this means that the best possible adaptation of the individual chair elements the individual physique and the activity of the user should. In this context, it is known to seat and back to be able to adjust in height and inclination. Height adjustable Armrests common.

Gerade im Zusammenhang mit der zunehmenden Verbreitung von Personalcomputern wird die Abstützung der Unterarme bei der Tastatur- und Mausbetätigung immer wichtiger.Especially in connection with the increasing spread of personal computers will support the forearms at the keyboard and Mouse actuation more and more important.

Aus der US-A-4 277 102 ist eine Lehnenkonstruktion bekannt, bei der die Armauflagefläche bildende Lehnenkörper über ein Kugelgelenk an der Lehnensäule gelagert ist. Durch diese Lagerkonstruktion ist der Lehnenkörper um 360° drehbar sowie seitlich nach vorn und nach hinten um einen bestimmten Neigungswinkel verstellbar. Es sind also alle Freiheitsgrade für die Verstellung des Lehnenkörpers verfügbar, womit jede Person die für ihn optimale Lehnenposition finden und einstellen kann.A backrest construction is known from US-A-4,277,102, in which the armrest surface Backrest body is mounted on the backrest pillar via a ball joint. By this bearing construction allows the backrest body to be rotated 360 ° and to the side adjustable forwards and backwards by a certain angle. So there are all degrees of freedom for the adjustment of the backrest body available, with which each person the optimal backrest position for him can find and adjust.

Bei der bekannten Lehnenkonstruktion ist das als Universalgelenk ausgebildete Kugelgelenk durch eine relativ aufwendige Konstruktion charakterisiert, die durch eine voluminöse Schraubklemmung in ihrer Stellung fixierbar ist.In the known backrest construction, this is designed as a universal joint Ball joint characterized by a relatively complex construction, which can be fixed in position by a voluminous screw clamp is.

Davon ausgehend liegt der Erfindung die Aufgabe zugrunde, die Klemmkonstruktion für das Kugelgelenk zu verbessern, insbesondere konstruktiv einfacher zu gestalten.Proceeding from this, the object of the invention is the clamp construction for the ball joint to improve, especially constructively easier to design.

Diese Aufgabe wird durch die im Kennzeichnungsteil des Anspruches angegebenen Merkmale gelöst. Demnach ist das Kugelgelenk mittels einer am Lehnenkörper angeordneten Exzenterklemmung feststellbar. This object is achieved by those specified in the characterizing part of the claim Features resolved. Accordingly, the ball joint is by means of a Eccentric clamp arranged on the backrest body can be determined.

Bevorzugte Ausführungsformen, Einzelheiten und Vorteile der Erfindung sind der nachfolgenden Beschreibung entnehmbar, in der ein Ausführungsbeispiel des Erfindungsgegenstandes anhand der beigefügten Zeichnungen näher erläutert wird. Es zeigen

Fig. 1
einen schematischen Vertikalschnitt einer Armlehne in Längsrichtung,
Fig. 2
eine Ansicht der Armlehne aus Pfeilrichtung II nach Fig. 1,
Fig. 3
einen ausschnittsweisen schematischen Vertikalschnitt gemäß Fig. 1 mit unterschiedlichen Längsneigungsstellungen des Lehnenkörpers und
Fig. 4
einen quergerichteten Vertikalschnitt durch die Armlehne mit unterschiedlichen Querneigungsstellungen des Lehnenkörpers.
Preferred embodiments, details and advantages of the invention can be found in the following description, in which an embodiment of the subject matter of the invention is explained in more detail with reference to the accompanying drawings. Show it
Fig. 1
a schematic vertical section of an armrest in the longitudinal direction,
Fig. 2
2 shows a view of the armrest from the direction of arrow II according to FIG. 1,
Fig. 3
a fragmentary schematic vertical section according to FIG. 1 with different longitudinal inclination positions of the backrest body and
Fig. 4
a transverse vertical section through the armrest with different bank positions of the backrest body.

Die in den Fig. 1 bis 4 dargestellte Armlehne für Bürostühle weist als wesentliche Bauteile eine Lehnensäule 1 und einen daran gelagerten Lehnenkörper 2 auf, dessen Oberseite die Armauflagefläche 3 bildet. Der Übersichtlichkeit halber sind in den beigefügten Figuren gegebenenfalls vorhandene Polsterungen dieser Armauflagefläche 3 nicht dargestellt. The armrest for office chairs shown in Figs. 1 to 4 has essential Components a backrest column 1 and a backrest body mounted thereon 2, the top of which forms the arm support surface 3. The clarity for the sake of being present in the attached figures Upholstery of this arm support surface 3 is not shown.

Wie aus Fig. 4 deutlich wird, ist die Lehnensäule 1 höhenverstellbar ausgebildet, indem sie auf einem vertikal verlaufenden Führungsstab 4 teleskopartig verschiebbar geführt ist. Über eine Reihe von Rastöffnungen 5 im Führungsstab 4, in die die Rastnase 6 eines an der Lehnensäule 1 verschwenkbar gelagerten Auslösehebels 7 eingreift, kann die Armlehne in einer bestimmten Höhenposition fixiert werden. Derartige Höhenverrastungen sind aus dem Stand der Technik bekannt und üblich.As is clear from FIG. 4, the backrest column 1 is designed to be height-adjustable, by telescoping on a vertically extending guide rod 4 is slidably guided. Via a series of locking openings 5 in Guide rod 4, into which the locking lug 6 is pivotable on the backrest pillar 1 stored trigger lever 7 engages, the armrest in be fixed at a certain height position. Such height locks are known and common from the prior art.

Der Lehnenkörper 2 ist über ein Kugelgelenk 8 an der Lehnensäule 1 gelagert. Das Kugelgelenk 8 ist dabei von einem als Teilkugel ausgebildeten Schalenteil 9 am oberen Ende der Lehnensäule 1 und einem das Schalenteil 9 übergreifenden Pfannenteil 10 im Lehnenkörper 2 gebildet. Schalen- 9 und Pfannenteil 10 sind jeweils einstückig an die Lehnensäule 1 bzw. den Lehnenkörper 2 angeformt. Ferner wird der Lehnenkörper 2 von längsverlaufenden Versteifungsrippen 11 durchsetzt, die nach unten hin offen sind. Zwischen zwei solchen Versteifungsrippen 11' ist ein Exzenterhebel 12 um eine horizontal und in Querrichtung verlaufende Achse schwenkbar gelagert, der eine Exzenterklemmung zur Fixierung des Lehnenkörpers 2 in einer bestimmten Position an der Lehnensäule 1 bildet. In der in Fig. 1 gezeigten waagerechten Klemmstellung beaufschlagt der Exzenterhebel 12 das Kugelgelenk 8 über eine Federzunge 13, die ein Teil des Pfannenteils 10 ist und durch entsprechende Aussparungen 16 darin gebildet ist. Diese Federzunge 13 erhöht die Elastizität des Pfannenteils 10 in dem von der Exzenterklemmung beaufschlagten Bereich, wodurch eine stabile Festlegung des Pfannenteils 10 gegenüber dem Schalenteil 9 stattfindet. The backrest body 2 is mounted on the backrest pillar 1 via a ball joint 8. The ball joint 8 is designed as a partial ball Shell part 9 at the upper end of the backrest column 1 and the shell part 9 overlapping socket part 10 is formed in the backrest body 2. Bowls 9 and socket part 10 are each in one piece on the backrest column 1 and the Backrest body 2 molded. Furthermore, the backrest body 2 is of longitudinal length Stiffening ribs 11 penetrated, which are open towards the bottom. An eccentric lever 12 is located between two such stiffening ribs 11 ' pivotable about a horizontal and transverse axis stored an eccentric clamp for fixing the backrest body 2 in a certain position on the backrest column 1. In the shown in Fig. 1 the eccentric lever 12 acts on the horizontal clamping position the ball joint 8 via a spring tongue 13, which is part of the socket part 10 and is formed by corresponding recesses 16 therein. This Spring tongue 13 increases the elasticity of the socket part 10 in that of the Eccentric clamped area, creating a stable fixation of the pan part 10 relative to the shell part 9 takes place.

Wie ferner insbesondere aus Fig. 1 deutlich wird, ist der Öffnungsrand 14 des zum Lehnenkörper hin offenen Schalenteils 9 mit einem Wulst 15 versehen. Im Pfannteil 10 ist eine entsprechende Nut 15'vorgesehen, in die in der in Fig. 1 gezeigten Normalstellung der Wulst 15 einrastet. Dadurch ist die Normalstellung sehr einfach einzustellen.1, the opening edge is 14 of the shell part 9 open towards the backrest body is provided with a bead 15. A corresponding groove 15 ′ is provided in the pan part 10, into which in the normal position of the bead 15 shown in Fig. 1 engages. This is the normal position is very easy to set.

Zum Verstellen des Lehnenkörpers 1 wird der Exzenterhebel 12 in die in Fig. 1 gezeigten senkrechte Stellung verbracht, wodurch der Lehnenkörper 2 beweglich gegenüber der Lehnensäule 1 ist. Er kann dabei um die Vertikalachse V der Lehnensäule 1 frei um 360° gedreht werden (s. Pfeil D in Fig. 1). Der maximale Längsneigungswinkel L (Fig. 3) beträgt +/- 10° gegenüber der Horizontalen H. Der Querneigungswinkel Q (s. Fig. 4) liegt bei +/- 9°. Die Längs- und Querneigung ist dabei in jeder Drehstellung des Lehnenkörpers 2 einstellbar.To adjust the backrest body 1, the eccentric lever 12 is in the in Fig. 1 shown vertical position, whereby the backrest body 2 is movable with respect to the backrest column 1. It can about the vertical axis V of the backrest column 1 can be freely rotated through 360 ° (see arrow D in Fig. 1). The maximum pitch angle L (Fig. 3) is +/- 10 ° compared the horizontal H. The bank angle Q (see FIG. 4) lies at +/- 9 °. The longitudinal and transverse inclination is in every rotational position of the Backrest body 2 adjustable.

Im übrigen wird darauf hingewiesen, daß das Schalenteil 9 eine Aussparung 18 auf seiner Außenseite aufweist (Fig. 4), in der der Betätigungsgriff 17 des Auslösehebels 7 zu liegen kommt. Die Betätigungselemente für die Posititionsverstellung des Lehnenkörpers 2, nämlich der Betätigungsgriff 17 und der Exzenterhebel 12, liegen damit abgeschirmt und unauffällig unterhalb des Lehnenkörpers 2.It is also noted that the shell part 9 is a recess 18 on its outside (Fig. 4), in which the operating handle 17 of the trigger lever 7 comes to rest. The actuators for the Position adjustment of the backrest body 2, namely the operating handle 17 and the eccentric lever 12 are shielded and inconspicuous below the backrest body 2.

Claims (7)

  1. Armrest for office chairs, comprising an armrest column (1) that is attachable to an office chair and an armrest body (2) which is supported thereon and which is mounted on the armrest column (1) by way of a ball and socket joint (8), with the armrest body (2) being fixable in relation to the armrest column (1) by means of a locking device (12), characterized in that the ball and socket joint (8) is lockable by means of an eccentric clamp (12) that is disposed on the armrest body (2).
  2. Armrest according to claim 1, characterized in that the ball and socket joint (8) is formed by a ball member (9) of the armrest column (1) and a socket member (10) of the armrest body (2) which passes over the ball member (9).
  3. Armrest according to claim 2, characterized in that the ball member (9) and/or socket member (10) are integrally molded on the armrest column (1) and armrest body (2), respectively.
  4. Armrest according to one of claims 1 to 4, characterized in that the eccentric clamp is formed by an eccentric lever (12) which is pivotably mounted in the armrest body (2) between reinforcing ribs (11').
  5. Armrest according to one of claims 1 to 4, characterized in that a flexible tongue (13) is formed by recesses (16) in the socket member (10) and can be actuated by the eccentric clamp (12).
  6. Armrest according to one of claims 1 to 5, characterized in that the ball member (9) is open towards the armrest body (2) and that the edge (14) of the opening has an encircling bead (15) which co-operates with a groove (15') in the socket member (10) for setting a standard position.
  7. Armrest according to one of claims 1 to 6, characterized in that the armrest column (1) is height-adjustable.
EP97110265A 1996-07-01 1997-06-24 Arm rest for office chairs Expired - Lifetime EP0815777B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29611267U 1996-07-01
DE29611267U DE29611267U1 (en) 1996-07-01 1996-07-01 Armrest for office chairs

Publications (3)

Publication Number Publication Date
EP0815777A2 EP0815777A2 (en) 1998-01-07
EP0815777A3 EP0815777A3 (en) 2000-01-26
EP0815777B1 true EP0815777B1 (en) 2003-10-29

Family

ID=8025763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97110265A Expired - Lifetime EP0815777B1 (en) 1996-07-01 1997-06-24 Arm rest for office chairs

Country Status (4)

Country Link
EP (1) EP0815777B1 (en)
AT (1) ATE252860T1 (en)
DE (2) DE29611267U1 (en)
ES (1) ES2208785T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2843533B1 (en) 2002-08-14 2004-09-24 Rehau Sa ARMREST OR ADJUSTABLE ARMREST FOR ARMCHAIRS AND MORE GENERAL FOR SEATS
NO320868B1 (en) * 2004-06-11 2006-02-06 Sinvent As Adjustable armrest as well as a reading mechanism
ES2333768B1 (en) * 2009-07-21 2010-10-13 Actiu Berbegal Y Formas, S.A. OFFICE CHAIR.
DE102013104809B4 (en) * 2013-05-08 2016-08-18 Bock 1 Gmbh & Co. Kg Armrest, especially for an office chair
GB2593331B (en) * 2018-10-19 2022-08-17 Flokk Ab Locking device for a chair

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1706634A (en) * 1928-03-15 1929-03-26 Christian J Seils Arm-rest device
NO148208C (en) * 1978-05-24 1983-08-31 Standard Tel Kabelfab As CHAIR.
US5407249A (en) * 1990-10-15 1995-04-18 Bonutti; Peter M. Armrest assembly

Also Published As

Publication number Publication date
EP0815777A2 (en) 1998-01-07
DE29611267U1 (en) 1996-08-29
EP0815777A3 (en) 2000-01-26
DE59710908D1 (en) 2003-12-04
ATE252860T1 (en) 2003-11-15
ES2208785T3 (en) 2004-06-16

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