EP0309390B1 - Chair, particularly a working chair, with arm rests - Google Patents

Chair, particularly a working chair, with arm rests Download PDF

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Publication number
EP0309390B1
EP0309390B1 EP88810494A EP88810494A EP0309390B1 EP 0309390 B1 EP0309390 B1 EP 0309390B1 EP 88810494 A EP88810494 A EP 88810494A EP 88810494 A EP88810494 A EP 88810494A EP 0309390 B1 EP0309390 B1 EP 0309390B1
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EP
European Patent Office
Prior art keywords
chair
seat
height
arm rest
arm rests
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
EP88810494A
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German (de)
French (fr)
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EP0309390A1 (en
Inventor
Emil Eberle
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EQUUS MARKETING AG
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EQUUS MARKETING AG
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Publication date
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Priority to AT88810494T priority Critical patent/ATE64837T1/en
Publication of EP0309390A1 publication Critical patent/EP0309390A1/en
Application granted granted Critical
Publication of EP0309390B1 publication Critical patent/EP0309390B1/en
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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
    • 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

Definitions

  • GB-A-2 068 719 shows a height-adjustable armrest with a vertical support arranged at the front of the seat, which can be loosened by means of an adjusting screw and then fastened again in the desired position by tightening the adjusting screw.
  • This adjustment is quite cumbersome. It can happen that the armrest sinks to the lowest position when the adjusting screw is loosened. The user of the seat must then pull up the armrest with one hand and tighten the set screws with the other hand.
  • Another disadvantage is the fact that when the armrest is adjusted downward, the carrier is also moved downward and projects with its lower end under the seat. This may be permissible for a vehicle seat, which is intended in particular for a woodworking vehicle, but it cannot meet the high aesthetic demands that are placed on office chairs today.
  • the actuator has at least one thread which engages in a threaded bore of the carrier and a sleeve as a twist grip for height adjustment.
  • Trials have shown that the right one Armrest height is of crucial importance for the wellbeing of the chair user. The correct height adjustment prevents postural damage. When the armrests are at the correct height, the chair user automatically uses them more, which relieves the spine. The periodic relief of the spine unexpectedly contributes greatly to the well-being of the chair user. Signs of fatigue, cramps in the back muscles and back pain are largely prevented if the armrests are properly adjusted.
  • the height adjustment in the chair according to the invention can be carried out simply by turning the actuator.
  • the armrest carrier is not lowered under the seat, but its length is changed. This enables a simple and elegant design of the armrest. Since the actuator has a sleeve, the thread of the screws is covered, which is useful for aesthetic reasons.
  • the actuator advantageously has a screw with a right-hand thread and a screw with a Linds thread. This enables the height to be adjusted quickly and the possible height adjustment to be doubled.
  • a locking device for example a spring washer, is advantageously provided in the sleeve to limit the height adjustment. This prevents the chair user from moving the screw out of the threaded hole.
  • a scale can be arranged on the carrier, which indicates the extent of the height adjustment.
  • the respective armrest is advantageous directly at the front and rear by means of the adjustable Carrier hinged to the seat. This results in a simple and shapely chair construction.
  • the respective armrest or the adjustable support at the front and rear of the seat can be articulated by means of an articulation element that can be attached to the seat. This articulation element can advantageously be attached to the seat in various positions in order to make the horizontal distance between the armrests changeable.
  • An advantageous embodiment of the invention provides that the respective armrest runs in an arc from the back to the front and down. This results in a shapely design of the chair, while avoiding bumping the armrest against the office table or other furnishings.
  • the chair shown in Figure 1 consists essentially of the base 11, the seat 13, the backrest 15 and the armrests 17.
  • the armrests 17 are adjustable in height.
  • the backrest element 19 of the armrest 17 can have any shape.
  • the backrest element 19 is arcuate. It runs from back to front down.
  • the backrest element 19 is preferably made of plastic. It can also have padding.
  • the backrest element 19 is carried at the rear by an approximately vertically arranged support 21 which is variable in length. If the backrest element 19 is being executed, a length-adjustable carrier 21 can also be provided at the front.
  • the backrest element 19, however, has an angled portion 23 at the front, the end of which is articulated at 25 on an articulation element 27 arranged on the lower part of the seat 13 (FIG. 3).
  • the carrier 21 is also articulated on a pivot element 29 arranged at the bottom of the seat 13.
  • an armrest 17 essentially consists of the backrest element 19, the support 21 and the articulation elements 27, 29.
  • the articulation elements 27, 29 have fastening holes 31, 33, which are used to fasten the armrest 17 to the chair.
  • This attachment can take place at various positions on the seat, so that the distance between the armrests 17 can be adapted to the needs of the seat user. If one speaks here of fastening the armrests 17 to the seat 13, this is to be understood in a broader sense.
  • the attachment can also be carried out on the housing 35, which is arranged at the bottom of the seat 13 and encloses the synchronous mechanism.
  • the supports 21 can be adjusted in height by means of an actuator 37.
  • the height adjustment can be read on a scale 39 (Fig. 4).
  • the carrier 21 consists of the lower part 41 and the upper part 43.
  • the upper part 43 is connected to a plate 45 which is fastened to the backrest element 19 by means of screws 47.
  • the actuator 37 which connects the parts 41 and 43 together, essentially consists of a bolt 49 with two counter-rotating threads, e.g. a right-hand thread 51 and a left-hand thread 53. These threads 51 and 53 are screwed into corresponding threaded bores 55, 57 in the upper part 43 and lower part 41 of the carrier.
  • the central part 59 of the bolt 49 is provided with a sleeve 60, e.g. made of plastic, which each encompasses a portion of the parts 41, 43.
  • a locking device e.g. a spring ring 61 is provided in a groove 63 of a carrier part 43 in order to limit the height adjustment.
  • the chair user wishes to adjust the height of the armrest 17, he only needs to turn the actuator 37.
  • the degree of height adjustment can be read on the scale 39.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Seats For Vehicles (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Special Chairs (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

To improve seating comfort of chair users of different anatomical build, the arm rests are height-adjustable with respect to the seat by coupling the arm rests with length-adjustable support rods (21) located adjacent the seat back. To match the chair to various shoulder configurations, the arm rests can be moved inwardly and outwardly with respect to a center line of the chair as well.

Description

In den letzten Jahren wurden grosse Anstrengungen gemacht, den Komfort von Arbeitsstühlen zu verbessern. Das Hauptaugenmerk richtete sich dabei auf die Verstellbarkeit von Sitz- und Rükkenlehne, insbesondere auf die Synchronisierung der Bewegungen von Sitz- und Rückenlehne. Weitgehend unberücksichtigt von diesem Verbesserungstrend blieben die Armlehnen.Great efforts have been made in recent years to improve the comfort of work chairs. The main focus was on the adjustability of the seat and backrest, in particular on the synchronization of the movements of the seat and backrest. The armrests were largely ignored by this improvement trend.

Die GB-A-2 068 719 zeigt eine höhenverstellbare Armlehne mit einem vorn am Sitz angeordneten senkrechten Träger, welcher durch eine Stellschraube gelöst und dann in der gewünschten Stellung durch Anziehen der Stellschraube wieder befestigt werden kann. Diese Verstellung ist recht umständlich. So kann es passieren, dass beim Lösen der Stellschraube die Armlehne in die unterste Stellung absinkt. Der Benützer des Sitzes muss dann mit einer Hand die Armlehne hochziehen und mit der andern Hand die Stellschrauben anziehen. Nachteilig ist ferner der Umstand, dass bei einer Verstellung der Armlehne nach unten, der Träger ebenfalls nach unten bewegt wird und mit seinem unteren Ende unter den Sitz ragt. Dies mag für einen Fahrzeugsitz, der insbesondere für Holzereifahrzeug bestimmt ist, zulässig sein, vermag aber nicht den hohen ästhetischen Ansprüchen genügen, die heute an Bürostühle gestellt werden.GB-A-2 068 719 shows a height-adjustable armrest with a vertical support arranged at the front of the seat, which can be loosened by means of an adjusting screw and then fastened again in the desired position by tightening the adjusting screw. This adjustment is quite cumbersome. It can happen that the armrest sinks to the lowest position when the adjusting screw is loosened. The user of the seat must then pull up the armrest with one hand and tighten the set screws with the other hand. Another disadvantage is the fact that when the armrest is adjusted downward, the carrier is also moved downward and projects with its lower end under the seat. This may be permissible for a vehicle seat, which is intended in particular for a woodworking vehicle, but it cannot meet the high aesthetic demands that are placed on office chairs today.

Es ist daher Aufgabe der vorliegenden Erfindung, die Voraussetzung dafür zu schaffen, dass Armlehnen den individuellen Bedürfnissen der Stuhlbenützer entsprechen und eine einfache und formschöne Konstruktion aufweisen können.It is therefore an object of the present invention to create the prerequisite for armrests to meet the individual needs of the chair user and to have a simple and elegant design.

Erfindungsgemäss wird dies dadurch erreicht, dass das Stellglied mindestens ein Gewinde, das in eine Gewindebohrung des Trägers eingreift, und eine Hülse als Drehgriff zur Höhenverstellung aufweist. Versuche haben gezeigt, dass die richtige Höhe der Armlehne von entscheidener Bedeutung für das Wohlbefinden des Stuhlbenützers ist. Durch die richtige Höheneinstellung werden Haltungsschäden vermieden. Wenn die Armlehnen die richtige Höhe aufweisen, werden sie vom Stuhlbenützer automatisch mehr in Anspruch genommen, was zu einer Entlastung der Wirbelsäule führt. Die periodische Entlastung der Wirbelsäule trägt unerwartet stark zum Wohlbefinden des Stuhlbenützers bei. Ermüdungserscheinungen, Verkrampfungen der Rückenmuskulatur und Rückenschmerzen werden bei richtiger Anpassung der Armlehnen weitgehend verhindert.According to the invention, this is achieved in that the actuator has at least one thread which engages in a threaded bore of the carrier and a sleeve as a twist grip for height adjustment. Trials have shown that the right one Armrest height is of crucial importance for the wellbeing of the chair user. The correct height adjustment prevents postural damage. When the armrests are at the correct height, the chair user automatically uses them more, which relieves the spine. The periodic relief of the spine unexpectedly contributes greatly to the well-being of the chair user. Signs of fatigue, cramps in the back muscles and back pain are largely prevented if the armrests are properly adjusted.

Im Gegensatz zum Stand der Technik kann beim erfindungsgemässen Stuhl die Höhenverstellung durch blosses Drehen des Stellglieds vorgenommen werden. Dabei wird der Träger der Armlehne nicht unter den Sitz abgesenkt, sondern in seiner Länge verändert. Dies ermöglicht eine einfache und formschöne Konstruktion der Armlehne. Da das Stellglied eine Hülse aufweist, wird das Gewinde der Schrauben abgedeckt, was aus ästhetischen Gründen zweckmässig ist.In contrast to the prior art, the height adjustment in the chair according to the invention can be carried out simply by turning the actuator. The armrest carrier is not lowered under the seat, but its length is changed. This enables a simple and elegant design of the armrest. Since the actuator has a sleeve, the thread of the screws is covered, which is useful for aesthetic reasons.

Vorteilhaft weist das Stellglied eine Schraube mit Rechtsgewinde und eine Schraube mit Lindsgewinde auf. Dies ermöglicht eine rasche Verstellung der Höhe und eine Verdoppelung der möglichen Höhenverstellung.The actuator advantageously has a screw with a right-hand thread and a screw with a Linds thread. This enables the height to be adjusted quickly and the possible height adjustment to be doubled.

Vorteilhaft ist in der Hülse eine Arretiervorrichtung, z.B. ein Federring, zur Begrenzung der Höhenverstellung vorgesehen. Dadurch wird vermieden, dass der Stuhlbenützer die Schraube aus dem Gewindeloch bewegt. Um die Höhenverstellung sichtbar zu machen, kann am Träger eine Skala angeordnet sein, welche das Mass der Höhenverstellung anzeigt. Vorteilhaft ist die jeweilige Armlehne vorn direkt und hinten mittels des verstellbaren Trägers am Sitz angelenkt. Dies ergibt eine einfache und formschöne Stuhlkonstruktion. Die Anlenkung der jeweiligen Armlehne bzw. des verstellbaren Trägers vorn und hinten am Sitz kann über je ein am Sitz befestigbares Anlenkelement erfolgen. Dieses Anlenkelement ist vorteilhaft in verschiedenen Stellungen am Sitz befestigbar, um die horizontale Distanz zwischen den Armlehnen veränderbar zu gestalten.A locking device, for example a spring washer, is advantageously provided in the sleeve to limit the height adjustment. This prevents the chair user from moving the screw out of the threaded hole. In order to make the height adjustment visible, a scale can be arranged on the carrier, which indicates the extent of the height adjustment. The respective armrest is advantageous directly at the front and rear by means of the adjustable Carrier hinged to the seat. This results in a simple and shapely chair construction. The respective armrest or the adjustable support at the front and rear of the seat can be articulated by means of an articulation element that can be attached to the seat. This articulation element can advantageously be attached to the seat in various positions in order to make the horizontal distance between the armrests changeable.

Ein vorteilhaftes Ausführungsbeispiel der Erfindung sieht vor, dass die jeweilige Armlehne bogenförmig von hinten nach vorn nach unten verläuft. Dies ergibt eine formschöne Gestaltung des Stuhles, wobei ein Anstossen der Armlehne am Bürotisch oder anderen Einrichtungsgegenständen vermieden wird.An advantageous embodiment of the invention provides that the respective armrest runs in an arc from the back to the front and down. This results in a shapely design of the chair, while avoiding bumping the armrest against the office table or other furnishings.

Ein Ausführungsbeispiel der Erfindung wird nun unter Bezugnahme auf die Zeichnung beschrieben. Es zeigt:

  • Figur 1 eine perspektivische Ansicht des Stuhles mit den höhenverstellbaren Armlehnen,
  • Figur 2A eine Seitenansicht einer Armlehne mit einem in seiner Länge durch ein Stellglied veränderbaren Träger,
  • Figur 2B in vergrössertem Massstab einen Längsschnitt im Bereich des Stellglieds,
  • Figur 3 eine Ansicht der Armlehne von Figur 2A von oben,
  • Figur 4 eine Ansicht des in der Länge verstellbaren Trägers mit dem Stellglied,
An embodiment of the invention will now be described with reference to the drawing. It shows:
  • FIG. 1 shows a perspective view of the chair with the height-adjustable armrests,
  • FIG. 2A shows a side view of an armrest with a support that can be changed in length by an actuator,
  • FIG. 2B shows, on an enlarged scale, a longitudinal section in the area of the actuator,
  • FIG. 3 shows a view of the armrest of FIG. 2A from above,
  • FIG. 4 shows a view of the length-adjustable carrier with the actuator,

Der in Figur 1 abgebildete Stuhl besteht im wesentlichen aus dem Fussgestell 11, dem Sitz 13, der Rückenlehne 15 und den Armlehnen 17. Die Armlehnen 17 sind höhenverstellbar.The chair shown in Figure 1 consists essentially of the base 11, the seat 13, the backrest 15 and the armrests 17. The armrests 17 are adjustable in height.

Eine Armlehne 17 wird nun unter Bezugnahme auf die Figuren 2 bis 4 näher beschrieben. Das Lehnenelement 19 der Armlehne 17 kann jede beliebige Form aufweisen. Beim gezeigten Ausführungsbeispiel ist das Lehnenelement 19 bogenförmig. Es verläuft von hinten nach vorn nach unten. Vorzugsweise besteht das Lehnenelement 19 aus Kunststoff. Es kann zusätzlich noch eine Polsterung aufweisen. Das Lehnenelement 19 wird hinten von einem etwa senkrecht angeordneten, in seiner Länge veränderbaren Träger 21 getragen. Wenn das Lehnenelement 19 gerade ausgeführt wird, kann auch vorn ein in der Länge veränderbarer Träger 21 vorgesehen werden. Beim gezeigten Ausführungsbeispiel weist das Lehnenelement 19 jedoch vorn eine Abkröpfung 23 auf, deren Ende bei 25 an einem am Unterteil des Sitzes 13 angeordneten Anlenkelement 27 angelenkt ist (Fig. 3). In entsprechender Weise ist auch der Träger 21 an einem unten am Sitz 13 angeordneten Anlenkelement 29 angelenkt. Wie die Figuren 2 und 3 zeigen, besteht also eine Armlehne 17 im wesentlichen aus dem Lehnenelement 19, dem Träger 21 und den Anlenkelementen 27, 29. Die Anlenkelemente 27, 29 weisen Befestigungslöcher 31, 33 auf, welche der Befestigung der Armlehne 17 am Stuhl dienen. Diese Befestigung kann an verschiedenen Stellungen am Sitz erfolgen, so dass der Abstand zwischen den Armlehnen 17 den Bedürfnissen des Sitzbenützers anpassbar ist. Wenn hier von einer Befestigung der Armlehnen 17 am Sitz 13 gesprochen wird, so ist dies im weiteren Sinne zu verstehen. So kann die Befestigung auch beispielsweise am Gehäuse 35 erfolgen, welches unten am Sitz 13 angeordnet ist und die Synchronmechanik umschliesst.An armrest 17 will now be described in more detail with reference to FIGS. 2 to 4. The backrest element 19 of the armrest 17 can have any shape. In the exemplary embodiment shown, the backrest element 19 is arcuate. It runs from back to front down. The backrest element 19 is preferably made of plastic. It can also have padding. The backrest element 19 is carried at the rear by an approximately vertically arranged support 21 which is variable in length. If the backrest element 19 is being executed, a length-adjustable carrier 21 can also be provided at the front. In the exemplary embodiment shown, the backrest element 19, however, has an angled portion 23 at the front, the end of which is articulated at 25 on an articulation element 27 arranged on the lower part of the seat 13 (FIG. 3). In a corresponding manner, the carrier 21 is also articulated on a pivot element 29 arranged at the bottom of the seat 13. As FIGS. 2 and 3 show, an armrest 17 essentially consists of the backrest element 19, the support 21 and the articulation elements 27, 29. The articulation elements 27, 29 have fastening holes 31, 33, which are used to fasten the armrest 17 to the chair. This attachment can take place at various positions on the seat, so that the distance between the armrests 17 can be adapted to the needs of the seat user. If one speaks here of fastening the armrests 17 to the seat 13, this is to be understood in a broader sense. For example, the attachment can also be carried out on the housing 35, which is arranged at the bottom of the seat 13 and encloses the synchronous mechanism.

Von besonderer Bedeutung ist nun, dass die Träger 21 durch ein Stellglied 37 höhenverstellbar sind. Die Höhenverstellung kann an einer Skala 39 (Fig. 4) abgelesen werden. Der Träger 21 besteht aus dem unteren Teil 41 und dem oberen Teil 43. Der obere Teil 43 ist mit einer Platte 45 verbunden, die mittels Schrauben 47 am Lehnenelement 19 befestigt ist. Das Stellglied 37, welches die Teile 41 und 43 miteinander verbindet, besteht im wesentlichen aus einem Bolzen 49 mit zwei gegenläufigen Gewinden, z.B. einem Rechtsgewinde 51 und einem Linksgewinde 53. Diese Gewinde 51 und 53 sind in entsprechende Gewindebohrungen 55, 57 im oberen Teil 43 und unteren Teil 41 des Trägers eingeschraubt. Der Mittelteil 59 des Bolzens 49 ist mit einer Hülse 60, z.B. aus Kunststoff,verbunden, welche je einen Abschnitt der Teile 41, 43 umgreift. Eine Arretiervorrichtung, z.B. ein Federring 61, ist in einer Nut 63 eines Trägerteils 43 vorgesehen, um die Höhenverstellung zu begrenzen.It is now of particular importance that the supports 21 can be adjusted in height by means of an actuator 37. The height adjustment can be read on a scale 39 (Fig. 4). The carrier 21 consists of the lower part 41 and the upper part 43. The upper part 43 is connected to a plate 45 which is fastened to the backrest element 19 by means of screws 47. The actuator 37, which connects the parts 41 and 43 together, essentially consists of a bolt 49 with two counter-rotating threads, e.g. a right-hand thread 51 and a left-hand thread 53. These threads 51 and 53 are screwed into corresponding threaded bores 55, 57 in the upper part 43 and lower part 41 of the carrier. The central part 59 of the bolt 49 is provided with a sleeve 60, e.g. made of plastic, which each encompasses a portion of the parts 41, 43. A locking device, e.g. a spring ring 61 is provided in a groove 63 of a carrier part 43 in order to limit the height adjustment.

Wünscht der Stuhlbenützer die Höhe der Armlehne 17 zu verstellen, so braucht er lediglich am Stellglied 37 zu drehen. Das Mass der Höhenverstellung ist an der Skala 39 ablesbar.If the chair user wishes to adjust the height of the armrest 17, he only needs to turn the actuator 37. The degree of height adjustment can be read on the scale 39.

Claims (8)

1. Chair with arm rests (17) which are height-adjustable by a positioning element (37), each arm rest comprising an arm rest element (19) carried by a substantially vertical adjustable support (21), characterised in that the positioning element (37) comprises at least one thread (51, 53) and a rotatable sleeve (60), said thread engaging a tapped hole (55, 57) of the support (21), and said rotatable sleeve (60) permitting height-adjustment.
2. Chair as in claim 1, characterised in that the positioning element (37) has a right-hand thread (51) and a left-hand thread (53).
3. Chair as in claim 1 or 2, characterised in that in the sleeve (60) a stop device (61), e.g. a spring ring, is provided to limit the height-adjustment.
4. Chair as in one of the claims 1 to 3, characterised in that a scale (39) is provided on the support (21) to provide a measure for the height-adjustment.
5. Chair as in one of the claims 1 to 4, characterised in that the arm rest element (19) of each arm rest (17) is with its front portion and with its back portion pivotally connected to the seat (13), the front portion being directly connected, and the back portion being connected by means of the adjustable support (21).
6. Chair as in claim 5, characterised in that the pivotal connection of the front portion and the back portion of the arm rest (17) on the seat (13) is effected by a brace element (27, 29) connected to the seat.
7. Chair as in claim 6, characterised in that each brace element (27, 29) is mountable in different positions at the seat (13).
8. Chair as in one of the claims 1 to 7, characterised in that the arm rest element (19) of each arm rest (17) extends in a curved slope down from the back to the front.
EP88810494A 1987-09-14 1988-07-18 Chair, particularly a working chair, with arm rests Expired - Lifetime EP0309390B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88810494T ATE64837T1 (en) 1987-09-14 1988-07-18 CHAIR, ESPECIALLY WORK CHAIR, WITH ARMRESTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3534/87 1987-09-14
CH353487 1987-09-14

Publications (2)

Publication Number Publication Date
EP0309390A1 EP0309390A1 (en) 1989-03-29
EP0309390B1 true EP0309390B1 (en) 1991-07-03

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Family Applications (1)

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EP88810494A Expired - Lifetime EP0309390B1 (en) 1987-09-14 1988-07-18 Chair, particularly a working chair, with arm rests

Country Status (5)

Country Link
US (1) US4884846A (en)
EP (1) EP0309390B1 (en)
AT (1) ATE64837T1 (en)
DE (1) DE3863522D1 (en)
ES (1) ES2024049B3 (en)

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US2647560A (en) * 1951-01-18 1953-08-04 William C Huebener Posture chair and seat
US2667913A (en) * 1951-10-13 1954-02-02 Ernest G Dustin Body support and weight distributor
US2689600A (en) * 1953-07-28 1954-09-21 Fritz H Van Briesen Portable armrest for automobile seats
FR1083969A (en) * 1953-09-24 1955-01-14 Children's potty chair
CA694328A (en) * 1960-10-18 1964-09-15 W. Spiselman Joseph Adjustable pedestal for elevated sectional floors
US3386697A (en) * 1966-08-02 1968-06-04 Knoll Associates Rotatable chair height-adjustment mechanism
DE2020673A1 (en) * 1970-04-28 1971-11-11 Albert Spieth Device for adjusting the pivoting rod of a back or armrest support for office chairs
US4159148A (en) * 1978-01-27 1979-06-26 Schulz Terry H Folding arm rest accessory
NO148208C (en) * 1978-05-24 1983-08-31 Standard Tel Kabelfab As CHAIR.
SE427984B (en) * 1980-01-31 1983-05-30 Nordfor Ab ARMSTODAR FOR FORARSTOLAR, T.EX. IN FORESTS

Also Published As

Publication number Publication date
US4884846A (en) 1989-12-05
EP0309390A1 (en) 1989-03-29
ES2024049B3 (en) 1992-02-16
ATE64837T1 (en) 1991-07-15
DE3863522D1 (en) 1991-08-08

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