EP0637423A1 - Ergonomic chair - Google Patents

Ergonomic chair Download PDF

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Publication number
EP0637423A1
EP0637423A1 EP93112618A EP93112618A EP0637423A1 EP 0637423 A1 EP0637423 A1 EP 0637423A1 EP 93112618 A EP93112618 A EP 93112618A EP 93112618 A EP93112618 A EP 93112618A EP 0637423 A1 EP0637423 A1 EP 0637423A1
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EP
European Patent Office
Prior art keywords
seat
area
backrest
chair
chair according
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.)
Granted
Application number
EP93112618A
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German (de)
French (fr)
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EP0637423B1 (en
Inventor
Hermann Schöpf
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE59306042T priority Critical patent/DE59306042D1/en
Priority to AT93112618T priority patent/ATE150946T1/en
Priority to EP93112618A priority patent/EP0637423B1/en
Publication of EP0637423A1 publication Critical patent/EP0637423A1/en
Application granted granted Critical
Publication of EP0637423B1 publication Critical patent/EP0637423B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/46—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/029—Seat parts of non-adjustable shape adapted to a user contour or ergonomic seating positions

Definitions

  • the invention relates to a chair according to the preamble of the first claim.
  • the task is therefore to provide an ergonomic chair that does not have these disadvantages.
  • someone sitting on the chair should adopt a posture that is easy on the back without tiring the user.
  • the thighs come to rest on the front area of the seat that slopes forward. Similar to the seat wedge, this results in a slightly sloping position of the thighs, which makes it easier to straighten the upper body.
  • the ischium (os tuber ischii) rests on the rear, rising area of the seat and provides a good grip.
  • the backrest supports the back in the area of the thoracic vertebrae, which enables relaxed, upright sitting.
  • the backrest is preferably shaped in such a way that the buttocks are not hindered from behind and are at most supported laterally.
  • the seat, and in particular its front area, can also become narrower towards the front. This causes the thighs to assume a slightly spread, V-shaped position. This makes it even easier to tilt the pelvis forward.
  • FIGS. 1 to 3 The basic structure of the exemplary embodiment described can be seen from FIGS. 1 to 3.
  • the chair has a forward converging seat 1 and an upward converging backrest 2 and rests on three legs 3, 4, 5.
  • the seat is in a front and a rear area 6 and 6 respectively. 7 divided. In this exemplary embodiment, both areas are designed flat.
  • the front area drops forward, the rear area rises forward.
  • the backrest 2 is recessed in a lower buttock area 8.
  • the upper support part 11 is located above the rear area 7 of the seat surface.
  • the opening 12 serves to grasp the chair.
  • the chair shown here is made of wood and upholstered in the surface 1.
  • Typical dimensions of the example shown are: total height a of the backrest from the seat approx. 45 cm; Length b of the rear area of the seat surface about 15 to 25 cm (preferably 18-20 cm); Length c of the front area of the seat to the apex about 15 to 25 cm (preferably 20 to 22 cm); Width d of the recessed buttocks area approx. 15-25 cm (preferably 20 cm); Height e of the buttocks area approx. 15 - 25 cm (preferably 20 cm); Rise angle of the rear area of the seat approximately 4 ° to 10 ° (preferably 6 °); Decline angle of the front area of the seat surface about 4 ° to 10 ° (preferably 6 °). These dimensions relate to the design model shown and can also be selected differently.
  • FIG. 4 shows the chair according to the invention with a person sitting on it.
  • the thighs 20 are in a slightly sloping position and are somewhat spread apart due to the seat surface which becomes narrower towards the front.
  • the seat leg 21 of the seated person rests on the rear area 7 of the seat surface.
  • the rear seat part and the sacrum 22 can follow their natural, curved course and are not hindered, but only supported laterally by the support parts 9 and 10.
  • the upper body is supported in the area 23 of the burst vertebrae and in particular the sixth thoracic vertebra by the upper support part 11 of the backrest. Thanks to the shape of the backrest, which becomes narrower at the top, the shoulder blades are exposed, so that a complete erection of the shoulder area is not hindered.
  • the seated person automatically assumes a relief posture in which the pelvis is tilted forward, the chest is straightened and the spine is optimally loaded. Seat damage and in particular Damage to the spine and intervertebral discs is prevented.
  • the chair Since the chair has only one front leg, the lower legs are not hindered and can also be angled backwards.
  • the chair is not only suitable for healthy, but also for sick people.
  • patients with traumatic brain injury who take a forward bent position in a normal chair straighten up in the chair described.
  • the chair is also very pleasant for people with hip problems, since the spread leg position makes it easier to sit down and get up.
  • the design of the chair shown in the figures can be modified in many ways.
  • a conventional telescopic leg can be used, as is known from office chairs. This allows the height of the seat to be adjusted to the length of the legs of the seated person.
  • the two areas 6 and 7 of the seat surface form two flat levels here. But you can also bend and e.g. be convex.
  • the front area 6 can also drop on both sides so as not to impede the thighs and to facilitate a spread-out sitting position.
  • the recess 8 of the backrest can be omitted in particular if the backrest in the seat area is set back sufficiently.

Landscapes

  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Seats For Vehicles (AREA)

Abstract

The seat of the chair is divided up into a front, forwardly descending and a rear, forwardly ascending region (6 and 7 respectively). The backrest (2) is left open in the gluteal region and supports the sitting person in the thoracic region (23). The width of the seat decreases forwardly and that of the backrest upwardly. A person who sits on the chair automatically assumes an ergonomically correct sitting position. The legs (20) are slightly angled, the pelvis is tilted forwards, the thorax is upright and the spinal column is optimally loaded. The shoulder blades are free. <IMAGE>

Description

Die Erfindung betrifft einen Stuhl gemäss dem Oberbergriff des ersten Patentanspruchs.The invention relates to a chair according to the preamble of the first claim.

Bei herkömmlichen Stühlen besteht das Problem, dass ein Sitzender oftmals eine ergonomisch ungünstige Sitzhaltung einnimmt, bei welcher insbesondere der Rücken falsch belastet wird.With conventional chairs, there is the problem that a seated person often assumes an ergonomically unfavorable sitting position, in which the back in particular is loaded incorrectly.

Deshalb wurden verschiedene Stuhlmodelle vorgeschlagen, bei denen der Sitzende in eine günstigere Sitzstellung gebracht wird. So wurde vorgeschlagen, die Sitzfläche eines Stuhls nach vorne abfallend zu gestalten oder einen Sitzkeil auf einen konventionellen Stuhl zu legen. Dies vereinfacht es dem Sitzenden, in eine Entlastungshaltung mit nach vorne gekipptem Becken zu gehen. Jedoch wird die abfallende Sitzfläche als unangenehm empfunden, da der Sitzende nach vorne abrutscht. Auch muss die Sitzfläche aus rutschfestem Material sein und kann nicht mit einem beliebigen Ueberzug versehen werden.For this reason, various chair models have been proposed in which the seated person is brought into a more favorable sitting position. It was proposed to make the seat of a chair sloping forward or to place a seat wedge on a conventional chair. This makes it easier for the seated person to go into a relief position with the pelvis tilted forward. However, the sloping seat is perceived as uncomfortable because the seat slides forward. The seat must also be made of non-slip material and cannot be provided with any cover.

Somit stellt sich die Aufgabe, einen ergonomischen Stuhl bereitzustellen, der diese Nachteile nicht aufweist. Insbesondere soll jemand, der auf dem Stuhl sitzt, eine Haltung einnehmen, die den Rücken schont, ohne dass der Sitzende dabei ermüdet.The task is therefore to provide an ergonomic chair that does not have these disadvantages. In particular, someone sitting on the chair should adopt a posture that is easy on the back without tiring the user.

Diese Aufgabe wird durch den Stuhl gemäss dem kennzeichnenden Teil von Anspruch 1 gelöst.This object is achieved by the chair according to the characterizing part of claim 1.

Auf dem erfindungsgemässen Stuhl kommen die Oberschenkel auf dem nach vorne abfallenden vorderen Bereich der Sitzfläche zu liegen. Somit ergibt sich, ähnlich wie beim Sitzkeil, eine leicht nach unten abfallende Stellung der Oberschenkel, was ein Aufrichten des Oberkörpers erleichtert. Anderseits ruht das Sitzbein (os tuber ischii) auf dem hinteren, nach vorne ansteigenden Bereich der Sitzfläche und vermittelt einen guten Halt. Ausserdem stützt die Rückenlehne den Rücken im Bereich der Brustwirbel, was ein entspanntes, aufrechtes Sitzen erlaubt.On the chair according to the invention, the thighs come to rest on the front area of the seat that slopes forward. Similar to the seat wedge, this results in a slightly sloping position of the thighs, which makes it easier to straighten the upper body. On the other hand, the ischium (os tuber ischii) rests on the rear, rising area of the seat and provides a good grip. In addition, the backrest supports the back in the area of the thoracic vertebrae, which enables relaxed, upright sitting.

Vorzugsweise ist die Rückenlehne so geformt, dass das Gesäss von hinten nicht behindert und höchstens seitlich abgestützt wird. Auch kann die Sitzfläche und insbesondere deren vorderer Bereich nach vorne schmaler werden. Dadurch nehmen die Oberschenkel eine leicht gespreizte, V-förmige Stellung ein. Somit wird ein nach vorne Kippen des Beckens weiter erleichtert.The backrest is preferably shaped in such a way that the buttocks are not hindered from behind and are at most supported laterally. The seat, and in particular its front area, can also become narrower towards the front. This causes the thighs to assume a slightly spread, V-shaped position. This makes it even easier to tilt the pelvis forward.

Weitere Vorteile und Anwendungen des erfindungsgemässen Stuhls ergeben sich aus der folgenden Beschreibung anhand der Figuren. Dabei zeigen:

  • Figur 1 einen Schnitt durch einen erfindungsgemässen Stuhl;
  • Figur 2 eine Vorderansicht des Stuhls nach Figur 1;
  • Figur 3 eine Aufsicht auf den Stuhl nach Fig. 1, und
  • Figur 4 eine schematische Seitenansicht des Stuhls mit einem Sitzenden.
Further advantages and applications of the chair according to the invention result from the following description with reference to the figures. Show:
  • 1 shows a section through a chair according to the invention;
  • Figure 2 is a front view of the chair of Figure 1;
  • Figure 3 is a plan view of the chair of Fig. 1, and
  • Figure 4 is a schematic side view of the chair with a seated.

Der prinzipielle Aufbau des beschriebenen Ausführungsbeispiels ist aus den Figuren 1 bis 3 ersichtlich.The basic structure of the exemplary embodiment described can be seen from FIGS. 1 to 3.

Der Stuhl weist eine nach vorne zusammenlaufende Sitzfläche 1 und eine nach oben zusammenlaufende Rückenlehne 2 auf und ruht auf drei Beinen 3, 4, 5. Die Sitzfläche ist in einen vorderen und einen hinteren Bereich 6 resp. 7 unterteilt. Beide Bereiche sind in diesem Ausführungsbeispiel eben ausgeführt. Der vordere Bereich fällt nach vorne ab, der hintere Bereich steigt nach vorne an. Die Lehne 2 ist in einem unteren Gesässbereich 8 ausgespart. Seitlich des Gesässbereichs befinden sich seitliche Stützteile 9 und 10 und oberhalb des Gesässbereichs ein oberer Stützteil 11. Der obere Stützteil 11 befindet sich über dem hinteren Bereich 7 der Sitzfläche. Die Oeffnung 12 dient zum Erfassen des Stuhls.The chair has a forward converging seat 1 and an upward converging backrest 2 and rests on three legs 3, 4, 5. The seat is in a front and a rear area 6 and 6 respectively. 7 divided. In this exemplary embodiment, both areas are designed flat. The front area drops forward, the rear area rises forward. The backrest 2 is recessed in a lower buttock area 8. There are lateral support parts 9 and 10 to the side of the seat area and an upper support part 11 above the seat area. The upper support part 11 is located above the rear area 7 of the seat surface. The opening 12 serves to grasp the chair.

Der hier gezeigte Stuhl ist aus Holz hergestellt und in der Stizfläche 1 gepolstert.The chair shown here is made of wood and upholstered in the surface 1.

Typische Masse des gezeigten Beispiels sind: Gesamthöhe a der Rückenlehne ab Sitzfläche ca. 45 cm; Länge b des hinteren Bereichs der Sitzfläche etwa 15 bis 25 cm (vorzugsweise 18 - 20 cm); Länge c des vorderen Bereichs der Sitzfläche bis zur Sptize etwa 15 bis 25 cm (vorzugsweise 20 bis 22 cm); Breite d des ausgesparten Gesässbereichs ca. 15 - 25 cm (vorzugsweise 20 cm); Höhe e des Gesässbereichs ca. 15 - 25 cm (vorzugsweise 20 cm); Anstiegswinkel des hinteren Bereichs der Sitzfläche ca. 4° bis 10° (vorzugsweise 6°); Abfallwinkel des vorderen Bereichs der Sitzfläche ca. 4° bis 10° (vorzugsweise 6°). Diese Masse beziehen sich auf das gezeigte Ausführungsmodell und können auch anders gewählt werden.Typical dimensions of the example shown are: total height a of the backrest from the seat approx. 45 cm; Length b of the rear area of the seat surface about 15 to 25 cm (preferably 18-20 cm); Length c of the front area of the seat to the apex about 15 to 25 cm (preferably 20 to 22 cm); Width d of the recessed buttocks area approx. 15-25 cm (preferably 20 cm); Height e of the buttocks area approx. 15 - 25 cm (preferably 20 cm); Rise angle of the rear area of the seat approximately 4 ° to 10 ° (preferably 6 °); Decline angle of the front area of the seat surface about 4 ° to 10 ° (preferably 6 °). These dimensions relate to the design model shown and can also be selected differently.

Figur 4 zeigt den erfindungsgemässen Stuhl mit einer darauf sitzenden Person. Wie eingangs erwähnt befinden sich die Oberschenkel 20 in einer leicht abfallenden Stellung und sind dank der nach vorne schmaler werdenden Sitzfläche etwas abgespreizt. Das Sitzbein 21 des Sitzenden ruht auf dem hinteren Bereich 7 der Sitzfläche. Dank der Auspsparung 8 im Gesässbereich der Rückenlehne können der hintere Gesässteil und das Kreuzbein 22 ihrem natürlichen, geschwungenen Verlauf folgen und werden nicht behindert, sondern lediglich seitlich durch die Stützteile 9 und 10 gestützt. Der Oberkörper wird im Bereich 23 der Burstwirbel und insbesondere des sechsten Brustwirbels durch den oberen Stützteil 11 der Rückenlehne gestützt. Dank der nach oben schmaler werdenden Form der Rückenlehne liegen die Schulterblätter frei, so dass eine vollständige Aufrichtung der Schulterpartie nicht behindert wird.FIG. 4 shows the chair according to the invention with a person sitting on it. As mentioned at the beginning, the thighs 20 are in a slightly sloping position and are somewhat spread apart due to the seat surface which becomes narrower towards the front. The seat leg 21 of the seated person rests on the rear area 7 of the seat surface. Thanks to the recess 8 in the seat area of the backrest, the rear seat part and the sacrum 22 can follow their natural, curved course and are not hindered, but only supported laterally by the support parts 9 and 10. The upper body is supported in the area 23 of the burst vertebrae and in particular the sixth thoracic vertebra by the upper support part 11 of the backrest. Thanks to the shape of the backrest, which becomes narrower at the top, the shoulder blades are exposed, so that a complete erection of the shoulder area is not hindered.

Auf diese Weise nimmt der Sitzende automatisch eine Entlastungshaltung ein, bei welcher das Becken nach vorne gekippt, der Brustkorb aufgerichtet und die Wirbelsäule optimal belastet ist. Sitzschäden und insbesondere Schäden an der Wirbelsäule und den Bandscheiben werden verhindert.In this way, the seated person automatically assumes a relief posture in which the pelvis is tilted forward, the chest is straightened and the spine is optimally loaded. Seat damage and in particular Damage to the spine and intervertebral discs is prevented.

Da der Stuhl nur ein vorderes Bein aufweist, werden die Unterschenkel nicht behindert und können auch nach hinten angewinkelt sein.Since the chair has only one front leg, the lower legs are not hindered and can also be angled backwards.

Es zeigt sich, dass sich der Stuhl nicht nur für gesunde, sondern auch für kranke Menschen eignet. Insbesondere Patienten mit Schädel-Hirn-Trauma, welche auf einem normalen Stuhl eine nach vorn gebeugte Haltung einnehmen, richten sich im beschriebenen Stuhl auf. Der Stuhl wird auch von Personen mit Hüftgelenkproblemen als sehr angenehm empfunden, da insbesondere die abgespreizte Beinstellung das Absitzen und Aufstehen erleichtert.It turns out that the chair is not only suitable for healthy, but also for sick people. In particular, patients with traumatic brain injury who take a forward bent position in a normal chair straighten up in the chair described. The chair is also very pleasant for people with hip problems, since the spread leg position makes it easier to sit down and get up.

Die in den Figuren gezeigte Ausführung des Stuhls kann in vielen Punkten abgeändert werden. So kann zum Beipsiel anstelle der drei Beine 3, 4, 5 ein konventionelles Teleskopbein verwendet werden, wie es von Bürostühlen bekannt ist. Damit kann die Höhe der Sitzfläche der Länge der Beine des Sitzenden angepasst werden.The design of the chair shown in the figures can be modified in many ways. For example, instead of the three legs 3, 4, 5, a conventional telescopic leg can be used, as is known from office chairs. This allows the height of the seat to be adjusted to the length of the legs of the seated person.

Die beiden Bereiche 6 und 7 der Sitzfläche bilden hier zwei flache Ebenen. Sie können aber auch gebogen und z.B. konvex ausgeführt sein. Auch kann der vordere Bereich 6 beidseits seitlich abfallend sein, um die Oberschenkel nicht zu behindern und eine abgespreizte Sitzstellung zu erleichtern.The two areas 6 and 7 of the seat surface form two flat levels here. But you can also bend and e.g. be convex. The front area 6 can also drop on both sides so as not to impede the thighs and to facilitate a spread-out sitting position.

Die Aussparung 8 der Rückenlehne kann insbesondere dann entfallen, wenn die Rückenlehne im Gesässbereich genügend nach hinten zurückversetzt ist.The recess 8 of the backrest can be omitted in particular if the backrest in the seat area is set back sufficiently.

Claims (10)

Stuhl mit einer Sitzfläche (1) und einer Rückenlehne (2), dadurch gekennzeichnet, dass die Sitzfläche einen hinteren (7) und einen vorderen (6) Bereich aufweist, wobei der hintere Bereich gegen vorne ansteigend, und der vordere Bereich gegen vorne abfallend ist, und wobei die Rückenlehne (2) in einem Brustwirbelbereich einen oberen Stützteil (11) zur Stützung eines Sitzenden aufweist.Chair with a seat (1) and a backrest (2), characterized in that the seat has a rear (7) and a front (6) area, the rear area rising towards the front and the front area falling towards the front , and wherein the backrest (2) has an upper support part (11) in a thoracic vertebra area for supporting a seated person. Stuhl nach Anspruch 1, dadurch gekennzeichnet, dass unterhalb des Stützteils (11) die Rückenlehne in einem Gesässbereich (8) ausgespart oder zurückversetzt ist.Chair according to claim 1, characterized in that below the support part (11) the backrest in a seat area (8) is recessed or set back. Stuhl nach Anspruch 2, dadurch gekennzeichnet, dass die Rückenlehne (2) beidseits seitlich des Gesässbereichs (8) seitliche Stützteile (9, 10) zur Stützung des Sitzenden aufweist.Chair according to claim 2, characterized in that the backrest (2) has lateral support parts (9, 10) on both sides of the seat area (8) to support the seated person. Stuhl nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, dass der Gesässbereich (8) sich maximal bis 15 - 25 cm oberhalb der Sitzfläche (1) erstreckt.Chair according to one of claims 2 or 3, characterized in that the seat area (8) extends up to a maximum of 15-25 cm above the seat surface (1). Stuhl nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Breite der Sitzfläche (1) nach vorne abnimmt.Chair according to one of the preceding claims, characterized in that the width of the seat (1) decreases towards the front. Stuhl nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Breite der Rückenlehne (2) nach oben abnimmt.Chair according to one of the preceding claims, characterized in that the width of the backrest (2) decreases upwards. Stuhl nach einem der vorangehenden Ansprüche, gekennzeichnet durch eine höhenverstellbare Beinanordnung.Chair according to one of the preceding claims, characterized by a height-adjustable leg arrangement. Stuhl nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der obere Stützteil (11) der Rückenlehne sich mindestens teilweise über dem hinteren Bereich (7) der Sitzfläche befindet.Chair according to one of the preceding claims, characterized in that the upper support part (11) the backrest is at least partially above the rear area (7) of the seat. Stuhl nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der hintere (7) und der vordere (6) Bereich der Sitzfläche ungefähr gleiche Länge aufweisen.Chair according to one of the preceding claims, characterized in that the rear (7) and the front (6) region of the seat have approximately the same length. Stuhl nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der hintere (7) und/oder vordere (6) Bereich der Sitzfläche mindestens teilweise als Ebene mit einem Anstiegs- resp. Abfallwinkel von 4° bis 10° ausgestaltet ist.Chair according to one of the preceding claims, characterized in that the rear (7) and / or front (6) region of the seat surface at least partially as a plane with a rise or. Drop angle of 4 ° to 10 ° is designed.
EP93112618A 1993-08-06 1993-08-06 Ergonomic chair Expired - Lifetime EP0637423B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE59306042T DE59306042D1 (en) 1993-08-06 1993-08-06 Ergonomic chair
AT93112618T ATE150946T1 (en) 1993-08-06 1993-08-06 ERGONOMIC CHAIR
EP93112618A EP0637423B1 (en) 1993-08-06 1993-08-06 Ergonomic chair

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93112618A EP0637423B1 (en) 1993-08-06 1993-08-06 Ergonomic chair

Publications (2)

Publication Number Publication Date
EP0637423A1 true EP0637423A1 (en) 1995-02-08
EP0637423B1 EP0637423B1 (en) 1997-04-02

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ID=8213141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93112618A Expired - Lifetime EP0637423B1 (en) 1993-08-06 1993-08-06 Ergonomic chair

Country Status (3)

Country Link
EP (1) EP0637423B1 (en)
AT (1) ATE150946T1 (en)
DE (1) DE59306042D1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29513338U1 (en) * 1995-08-19 1995-11-02 Lilge-Stodieck, Renate, 14129 Berlin Seating element
GB2492856A (en) * 2011-11-17 2013-01-16 Edward Uzzell A seating mat with posture correcting features
US8721004B2 (en) * 2012-07-13 2014-05-13 Technatel Corp. Chair structure
US9144313B2 (en) 2011-11-17 2015-09-29 Smarter Posture Company Limited Seating with enhanced grip and posture correction

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB484972A (en) * 1937-11-05 1938-05-12 Peter Kavanagh C C Improvements in or relating to stools, chairs, and the like
GB553750A (en) * 1941-12-02 1943-06-03 George Ernest Osmond Improvements in the construction of chairs and the like
US3485527A (en) * 1968-01-30 1969-12-23 Alexander S Barghout Chair
GB1294092A (en) * 1969-02-11 1972-10-25 Bernard Curtis Watkin Improvements in or relating to seats
DE3933430A1 (en) * 1989-10-06 1991-05-16 Peter Kaiser Ash wood chair with flexible backrest - has recess above seat base to bend back backrest

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB484972A (en) * 1937-11-05 1938-05-12 Peter Kavanagh C C Improvements in or relating to stools, chairs, and the like
GB553750A (en) * 1941-12-02 1943-06-03 George Ernest Osmond Improvements in the construction of chairs and the like
US3485527A (en) * 1968-01-30 1969-12-23 Alexander S Barghout Chair
GB1294092A (en) * 1969-02-11 1972-10-25 Bernard Curtis Watkin Improvements in or relating to seats
DE3933430A1 (en) * 1989-10-06 1991-05-16 Peter Kaiser Ash wood chair with flexible backrest - has recess above seat base to bend back backrest

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29513338U1 (en) * 1995-08-19 1995-11-02 Lilge-Stodieck, Renate, 14129 Berlin Seating element
GB2492856A (en) * 2011-11-17 2013-01-16 Edward Uzzell A seating mat with posture correcting features
GB2492856B (en) * 2011-11-17 2013-11-06 Smarter Posture Company Ltd Seating with enhanced grip and posture correction
US9144313B2 (en) 2011-11-17 2015-09-29 Smarter Posture Company Limited Seating with enhanced grip and posture correction
US8721004B2 (en) * 2012-07-13 2014-05-13 Technatel Corp. Chair structure

Also Published As

Publication number Publication date
ATE150946T1 (en) 1997-04-15
DE59306042D1 (en) 1997-05-07
EP0637423B1 (en) 1997-04-02

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