EP1325693A2 - Chair - Google Patents

Chair Download PDF

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Publication number
EP1325693A2
EP1325693A2 EP02028450A EP02028450A EP1325693A2 EP 1325693 A2 EP1325693 A2 EP 1325693A2 EP 02028450 A EP02028450 A EP 02028450A EP 02028450 A EP02028450 A EP 02028450A EP 1325693 A2 EP1325693 A2 EP 1325693A2
Authority
EP
European Patent Office
Prior art keywords
seat plate
support
seat
chair according
chair
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
EP02028450A
Other languages
German (de)
French (fr)
Other versions
EP1325693A3 (en
EP1325693B1 (en
Inventor
Roland Zünd
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.)
Friedrich W Dauphin GmbH and Co
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 EP1325693A2 publication Critical patent/EP1325693A2/en
Publication of EP1325693A3 publication Critical patent/EP1325693A3/en
Application granted granted Critical
Publication of EP1325693B1 publication Critical patent/EP1325693B1/en
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
    • A47C1/023—Reclining or easy chairs having independently-adjustable supporting parts the parts being horizontally-adjustable seats ; Expandable seats or the like, e.g. seats with horizontally adjustable parts
    • 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
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
    • 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
    • A47C7/024—Seat parts with double seats
    • 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
    • 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
    • A47C7/14—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions

Definitions

  • the invention relates to a chair, in particular an office chair.
  • the invention has for its object to a novel office chair create that better meets the physiological needs of users.
  • the object is solved by the features of claim 1.
  • the core consists in providing a seat plate which is longitudinally relative to the seat support is displaceable against a spring force.
  • a chair 1 shown schematically in FIG. 1, in particular an office chair, has a base frame 2, the rollers 3 against the floor is supported.
  • At the rear end of the seat support 5 is essentially a attached at the top extending backrest support 8, on which a padded Backrest 9 is attached.
  • a headrest support 10 is attached to which a headrest 11 is attached.
  • the seat support 5 has a front seat support part 12 and one on this Swivel axis 13 pivotably articulated rear seat support part 14 on.
  • the seat support part 12 consists of a substantially horizontal extending carrier 15 with a vertically extending conical receptacle 16, in which the upper end of the chair column 4 is attached.
  • To the front end of the carrier 15 is an obliquely upwardly extending support arm 17 attached.
  • the chair has a horizontal, from the backrest 9 to the seat plate 6 facing front direction 18, the direction of view corresponds to a user of the chair 1.
  • the support arm 17 At the front end of the support arm 17 is a horizontally recessed, opposite direction 18 extending bracket 19 attached, the free end 20 above of the carrier 15 lies.
  • the rear Seat support part 14 At the end 20 of the support arm 19 is the rear Seat support part 14 is pivotally articulated via a shaft 21.
  • the Pivot axis 13 runs horizontally.
  • the seat support part 14 has, adjacent to the shaft 21, a perpendicular to the direction 18, horizontally arranged, essentially across the width of the Seat plate 6 extending cross member 22.
  • At the outer ends 23 of the Cross members 22 are two arms 24 as components of the seat support part 14 attached, which is perpendicular to the cross member 22 obliquely to the rear Extend above and include an inclination angle a with the horizontal B.
  • the angle of inclination a is due to the pivoting of the seat support part 14 changeable about the pivot axis 13, but is usually greater than 0 °.
  • the typical range of the angle of inclination a is between 20 ° and 30 °.
  • the arms 24 go into two substantially vertical ones Struts 25, which form the backrest support 8.
  • the side Edge 26 of the seat plate 6 protrudes somewhat in the lateral direction, but only insignificantly over the side edge of the arms 24, as shown in Figure 2 is shown.
  • On the top of the arms 24 is one, too with an inclination angle a inclined to the horizontal, for Backrest 9 rising, flat sliding surface 27 is provided.
  • the Cross member 22 has two tabs 28 projecting in direction 18, through which the shaft 21 is guided and through which the rear seat support part 14 is articulated on the front seat support part 12.
  • On the cross member 22 is also attached in the middle a downwardly projecting lever 29, on the lower
  • An energy store 31 in the form of a length-adjustable, externally operable gas spring is articulated.
  • On the Energy storage 31 generates a counterforce, for. B. if the user the chair 1 leans back with the backrest 9.
  • Rear Seat support part 14 and the backrest support 8 are thus opposed a force originating from the energy accumulator 31 in relation to the front one Seat support part 12 pivotable.
  • the chair 1 is mirror-symmetrical with respect the plane of symmetry A.
  • the seat plate 6 is opposite the front seat support part 12 via a front support-guide unit 32 supported.
  • the support arm 17 is a horizontally extending on both sides outwards extending support tube 33 attached having a central longitudinal axis 34th has the horizontal and parallel to the pivot axis 13 and the axis of the joint 30 runs.
  • the support tube 33 is in the center under the seat plate 6 arranged and extends approximately three quarters of the width of the seat plate 6.
  • the support tube 33 has in the region of its two outer ends ring cylindrical sections 35 on which a bearing sleeve 36 around Axis 34 is pivotable.
  • the two bearing sleeves 36 each have on its top an upwardly projecting pin 37 with a radial projecting head 38, with the pin 37 in an associated Elongated hole 39 in the seat plate 6, that is, guided in an elongated hole guide is.
  • the elongated hole 39 has one at its end lying in the direction 18 Keyhole opening 40 through which the head 38 for assembly or Disassembly of the seat plate 6 can be pushed.
  • the width of the head 38 is larger than the width of the elongated hole 39, so that the seat plate 6 opposite de bearing sleeve 36 is guided displaceably along the direction 18, however, it cannot be lifted as long as the head 38 is not in the area the keyhole opening is 40.
  • the plate 42 is in the direction 18 and counter to this over the sleeve 36 and supports the seat plate 6th from, so that even with a heavy user of the chair 1 a kink the front area of the seat plate 6 is prevented.
  • the plate 42 is like the seat plate 6 in this area, slightly curved upwards, d. H. with respect to the axis 34 convex.
  • the seat plate 6 consists of a front seat plate part 43, which is opposite the front support-guide unit 32 is supported, and one rear seat panel part 44, which has a rear support-guide unit 45 is supported relative to the rear seat support part 14.
  • the seat plate parts 43 and 45 are connected to one another via a joint 46.
  • at the hinge 46 is a film hinge.
  • Parts 43 and 44 and the joint 46 are integrally formed from plastic.
  • the front one As already mentioned, part 43 is curved upwards.
  • the rear part 44 runs flat.
  • the seat plate 6 is along its circumference with an in Top view surrounded substantially rectangular, bead-shaped edge 47, which has a circumferential groove 48 on its inside.
  • the rear carrying guide unit 45 has roller-shaped rollers 49, those in corresponding bearing recesses 50 on the underside of the seat plate part 44 are rotatably mounted. There are two roles 49 in a row arranged, each on a sliding surface 27 of the two arms 24th are supported and the sliding of the seat plate 6 on the sliding surfaces 27 improve. Between the arms 24 there are two, parallel to these guide pin 51 on the cross member 22 attached.
  • the cross member 22 has bores 52, through which a tapered section 53 is guided, with the cross member 22 is welded.
  • two bearing blocks 54 are attached, which can be moved on the guide pin 51 are led.
  • the guide pins 51 have a radial end projecting, screwed into this screw 55 to prevent slipping to prevent the bearing block 54 from the guide pin 51.
  • the stop 56 surrounding the guide pin 51 is a spring element provided in the form of two coil springs 57, between which a sleeve 58 is arranged.
  • the sleeve 58 prevents it from being compressed the coil springs 57 a part of the coil spring on the guide pin 51 scrapes and causes corresponding noises and this scratched.
  • the operation of the chair 1 is described below when the Position of the backrest is locked.
  • a person sits on the seat 7 and thus on the seat plate 6, a force is exerted on the rear Seat plate part 44 exercised.
  • the part 44 on the by the inclined plane 27 formed inclined plane in Figure 4 left down moved, while the coil springs through the bearing block 54 57 are compressed on the guide pin 51 and a counterforce is produced.
  • the rear seat panel part 44 By moving the rear seat panel part 44, the front seat plate part 43 along the direction 18 the support-guide unit 32 moved.
  • the shift in the height of the Joint 46 is by pivoting the bearing sleeve 36 around Axis 34 balanced, so that there is none in the slot guide Clamps is coming.
  • the displacement of the seat plate 6 is complete when the by the coil springs 57 exerted by gravity force component originating from the user along the sliding surface 27 including the frictional forces acting in the system.
  • the Movability of the seat corresponds to the weight and the center of gravity of the user has numerous advantages. With a larger and so that usually heavier person, the seat plate 6 will continue after pushed forward so that the user's thighs are better supported become.
  • parts 43 are automatically adjusted and 44 of the seat plate 6 in relation to the user's center of gravity, so that this is mainly due to the sloping rear seat panel part 44 is automatically supported in an upright sitting position. Is the Backrest 9 is not locked and the user pivots and changes thus the angle of inclination a of the sliding surface 27, so takes place through the Slidable seat plate 6 automatically readjust the optimal Seat position.

Abstract

The office chair has a base frame (2) on which a seat squab (6) is mounted via a support (5). The support has a backrest facing rear support-guide (45) opposite which the squab is supported and on which the squab is adjustable between horizontal and angled positions against a spring. The support has a frontal carrier-guide (32) opposite which the squab is supported.

Description

Die Erfindung betrifft einen Stuhl, insbesondere einen Bürostuhl.The invention relates to a chair, in particular an office chair.

Es sind verschiedenartige Bürostuhle bekannt. Die einfachsten weisen eine relativ zur Stuhlsäule ortsfeste Sitzfläche auf. Aufwendigere Bürostühle weisen eine Einrichtung zur Neigungsverstellung der Sitzfläche auf.Different types of office chairs are known. The simplest have one fixed seat relative to the chair column. More elaborate office chairs have a device for adjusting the inclination of the seat.

Der Erfindung liegt die Aufgabe zugrunde, eine neuartigen Bürostuhl zu schaffen, der den physiologischen Bedürfnissen der Benutzer besser entspricht.The invention has for its object to a novel office chair create that better meets the physiological needs of users.

Die Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. Der Kern besteht darin, eine Sitzplatte vorzusehen, die relativ zum Sitzträger längs verschiebbar gegen eine Federkraft verschiebbar ist.The object is solved by the features of claim 1. The core consists in providing a seat plate which is longitudinally relative to the seat support is displaceable against a spring force.

Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Further advantageous embodiments of the invention result from the Dependent claims.

Zusätzliche Vorteile und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispieles anhand der Zeichnung. Es zeigen:

  • Fig. 1 eine schematische Darstellung eines erfindungsgemäßen Stuhls,
  • Fig. 2 eine Ansicht von unten des Stuhles gemäß Fig. 1,
  • Fig. 3 einen Querschnitt gemäß der Schnittlinie III-III in Fig. 2,
  • Fig. 4 einen Querschnitt gemäß der Schnittlinie IV-IV in Fig. 2, und
  • Fig. 5 eine Ansicht gemäß dem Sichtpfeil V in Fig. 3.
    • Additional advantages and details of the invention will become apparent from the following description of an embodiment with reference to the drawing. Show it:
  • 1 is a schematic representation of a chair according to the invention,
  • 2 is a bottom view of the chair of FIG. 1,
  • 3 shows a cross section along the section line III-III in FIG. 2,
  • Fig. 4 shows a cross section along the section line IV-IV in Fig. 2, and
  • 5 is a view according to the arrow V in Fig. 3rd

    • Ein in Figur 1 schematisch dargestellter Stuhl 1, insbesondere ein Bürostuhl, weist ein Fußgestell 2 auf, das über Rollen 3 gegenüber dem Boden abgestützt ist. An dem Fußgestell 2 ist eine höhenverstellbare Stuhlsäule 4 angebracht, an deren oberem Ende ein Sitzträger 5 lösbar befestigt ist, auf dem wiederum eine Sitzplatte 6 mit einem gepolsterten Sitz 7 angebracht ist. Am hinteren Ende des Sitzträgers 5 ist ein sich im wesentlichen nach oben erstreckender Rückenlehnen-Träger 8 angebracht, an dem eine gepolsterte Rückenlehne 9 befestigt ist. Am oberen Ende des RückenlehnenTrägers 8 ist ein Kopfstützen-Träger 10 angebracht, an dem eine Kopfstütze 11 befestigt ist.A chair 1 shown schematically in FIG. 1, in particular an office chair, has a base frame 2, the rollers 3 against the floor is supported. On the base frame 2 there is a height-adjustable chair column 4 attached, at the upper end of a seat support 5 is releasably attached which in turn is attached to a seat plate 6 with a padded seat 7 is. At the rear end of the seat support 5 is essentially a attached at the top extending backrest support 8, on which a padded Backrest 9 is attached. At the top of the backrest support 8, a headrest support 10 is attached to which a headrest 11 is attached.

    Im folgenden wird unter Bezugnahme auf die Figuren 2 bis 5 der Aufbau des Sitzträgers 5 und der Sitzplatte 6 genauer beschrieben. Der Sitzträger 5 weist einen vorderen Sitzträger-Teil 12 und einen an diesem um eine Schwenkachse 13 verschwenkbar angelenkten hinteren Sitzträger-Teil 14 auf. Der Sitzträger-Teil 12 besteht aus einem im wesentlichen horizontal verlaufenden Träger 15 mit einer vertikal verlaufenden konischen Aufnahme 16, in der das obere Ende der Stuhlsäule 4 befestigt ist. An dem vorderen Ende des Trägers 15 ist ein schräg nach oben verlaufender Tragarm 17 angebracht. Der Stuhl weist eine horizontale, von der Rückenlehne 9 zur Sitzplatte 6 weisende Front-Richtung 18 auf, die der Blickrichtung eines Benutzers des Stuhles 1 entspricht. An dem vorderen Ende des Tragarmes 17 ist eine horizontal zurückspringender, sich entgegen der Richtung 18 erstreckender Tragarm 19 angebracht, dessen freies Ende 20 oberhalb des Trägers 15 liegt. An dem Ende 20 des Tragarmes 19 ist der hintere Sitzträger-Teil 14 über eine Welle 21 verschwenkbar angelenkt. Die Schwenkachse 13 verläuft horizontal. Der Sitzträger-Teil 14 weist, benachbart zu der Welle 21, einen sich senkrecht zur Richtung 18 erstreckenden, horizontal angeordneten, sich im wesentlichen über die Breite der Sitzplatte 6 erstreckenden Querträger 22 auf. An den äußeren Enden 23 des Querträgers 22 sind als Bestandteile des Sitzträger-Teils 14 zwei Arme 24 angebracht, die sich senkrecht von dem Querträger 22 schräg nach hinten oben erstrecken und mit der Horizontalen B einen Neigungswinkel a einschließen. Der Neigungswinkel a ist durch die Verschwenkung des Sitzträger-Teils 14 um die Schwenkachse 13 veränderbar, ist jedoch in der Regel größer als 0 °. Der typische Bereich des Neigungswinkels a liegt zwischen 20 ° und 30 °. Die Arme 24 gehen in zwei im wesentlichen vertikal verlaufende Streben 25 über, die den Rückenlehnen-Träger 8 bilden. Der seitliche Rand 26 der Sitzplatte 6 ragt in seitlicher Richtung etwas, jedoch nur unwesentlich über den seitlichen Rand der Arme 24 hervor, wie dies in Figur 2 dargestellt ist. Auf der Oberseite der Arme 24 ist jeweils eine, ebenfalls mit einem Neigungswinkel a gegenüber der Horizontalen geneigte, zur Rückenlehne 9 hin ansteigende, ebene Gleitfläche 27 vorgesehen. Der Querträger 22 weist zwei in Richtung 18 vorstehende Laschen 28 auf, durch die die Welle 21 geführt ist und über die der hintere Sitzträger-Teil 14 am vorderen Sitzträger-Teil 12 angelenkt ist. Am Querträger 22 ist ferner mittig ein nach unten vorstehender Hebel 29 befestigt, an dessen unterem Ende über ein Gelenk 30 ein Kraftspeicher 31 in Form einer längenverstellbaren, von außen betätigbaren Gasfeder angelenkt ist. Über den Kraftspeicher 31 wird eine Gegenkraft erzeugt, z. B. wenn der Benutzer des Stuhles 1 sich mit der Rückenlehne 9 nach hinten lehnt. Der hintere Sitzträger-Teil 14 sowie der Rückenlehnen-Träger 8 sind somit entgegen einer vom Kraftspeicher 31 stammenden Kraft gegenüber dem vorderen Sitzträger-Teil 12 verschwenkbar. Der Stuhl 1 ist spiegelsymmetrisch bezüglich der Symmetrieebene A aufgebaut.The following is the structure with reference to Figures 2 to 5 of the seat support 5 and the seat plate 6 described in more detail. The seat support 5 has a front seat support part 12 and one on this Swivel axis 13 pivotably articulated rear seat support part 14 on. The seat support part 12 consists of a substantially horizontal extending carrier 15 with a vertically extending conical receptacle 16, in which the upper end of the chair column 4 is attached. To the front end of the carrier 15 is an obliquely upwardly extending support arm 17 attached. The chair has a horizontal, from the backrest 9 to the seat plate 6 facing front direction 18, the direction of view corresponds to a user of the chair 1. At the front end of the support arm 17 is a horizontally recessed, opposite direction 18 extending bracket 19 attached, the free end 20 above of the carrier 15 lies. At the end 20 of the support arm 19 is the rear Seat support part 14 is pivotally articulated via a shaft 21. The Pivot axis 13 runs horizontally. The seat support part 14 has, adjacent to the shaft 21, a perpendicular to the direction 18, horizontally arranged, essentially across the width of the Seat plate 6 extending cross member 22. At the outer ends 23 of the Cross members 22 are two arms 24 as components of the seat support part 14 attached, which is perpendicular to the cross member 22 obliquely to the rear Extend above and include an inclination angle a with the horizontal B. The angle of inclination a is due to the pivoting of the seat support part 14 changeable about the pivot axis 13, but is usually greater than 0 °. The typical range of the angle of inclination a is between 20 ° and 30 °. The arms 24 go into two substantially vertical ones Struts 25, which form the backrest support 8. The side Edge 26 of the seat plate 6 protrudes somewhat in the lateral direction, but only insignificantly over the side edge of the arms 24, as shown in Figure 2 is shown. On the top of the arms 24 is one, too with an inclination angle a inclined to the horizontal, for Backrest 9 rising, flat sliding surface 27 is provided. The Cross member 22 has two tabs 28 projecting in direction 18, through which the shaft 21 is guided and through which the rear seat support part 14 is articulated on the front seat support part 12. On the cross member 22 is also attached in the middle a downwardly projecting lever 29, on the lower An energy store 31 in the form of a length-adjustable, externally operable gas spring is articulated. On the Energy storage 31 generates a counterforce, for. B. if the user the chair 1 leans back with the backrest 9. Rear Seat support part 14 and the backrest support 8 are thus opposed a force originating from the energy accumulator 31 in relation to the front one Seat support part 12 pivotable. The chair 1 is mirror-symmetrical with respect the plane of symmetry A.

    Die Sitzplatte 6 ist gegenüber dem vorderen Sitzträger-Teil 12 über eine vordere Trag-Führungs-Einheit 32 abgestützt. Am vorderen oberen Ende des Tragarmes 17 ist ein sich beidseitig nach außen erstreckendes, horizontal verlaufendes Tragrohr 33 befestigt, das eine Mittel-Längs-Achse 34 aufweist, die horizontal und parallel zur Schwenkachse 13 und zur Achse des Gelenks 30 verläuft. Das Tragrohr 33 ist mittig unter der Sitzplatte 6 angeordnet und erstreckt sich ungefähr über Dreiviertel der Breite der Sitzplatte 6. Das Tragrohr 33 weist im Bereich seiner beiden äußeren Enden ringzylindrische Abschnitte 35 auf, auf denen eine Lager-Hülse 36 um die Achse 34 verschwenkbar ist. Die beiden Lager-Hülsen 36 weisen jeweils auf ihrer Oberseite einen nach oben vorstehenden Stift 37 mit einem radial vorspringenden Kopf 38 auf, wobei der Stift 37 in einem zugehörigen Langloch 39 in der Sitzplatte 6, also in einer Langloch-Führung, geführt ist. Das Langloch 39 weist an seinem in Richtung 18 liegenden Ende eine Schlüsselloch-Öffnung 40 auf, durch die der Kopf 38 zur Montage oder Demontage der Sitzplatte 6 geschoben werden kann. Die Breite des Kopfes 38 ist größer als die Breite des Langlochs 39, so daß die Sitzplatte 6 gegenüber de Lager-Hülse 36 entlang der Richtung 18 verschiebbar geführt ist, jedoch nicht abgehoben werden kann, solange der Kopf 38 nicht im Bereich der Schlüsselloch-Öffnung 40 ist. Parallel zu dem Langloch 39 sind auf beiden Seiten nach unten vorstehende Gleitschienen 41, die wie die Sitzplatte 6 aus Kunststoff bestehen, vorgesehen, die auf einer parallel dazu verlaufenden Gleit-Stütz-Platte 42 abgestützt sind, die mit der Hülse 36 verbunden und auf dieser abgestützt ist. Die Platte 42 steht in Richtung 18 und entgegen zu dieser über die Hülse 36 hervor und stützt die Sitzplatte 6 ab, so daß auch bei einem schweren Benutzer des Stuhles 1 ein Abknicken des vorderen Bereichs der Sitzplatte 6 verhindert wird. Die Platte 42 ist, wie auch die Sitzplatte 6 in diesem Bereich, leicht nach oben gekrümmt, d. h. bezogen auf die Achse 34 konvex.The seat plate 6 is opposite the front seat support part 12 via a front support-guide unit 32 supported. At the front upper end the support arm 17 is a horizontally extending on both sides outwards extending support tube 33 attached having a central longitudinal axis 34th has the horizontal and parallel to the pivot axis 13 and the axis of the joint 30 runs. The support tube 33 is in the center under the seat plate 6 arranged and extends approximately three quarters of the width of the seat plate 6. The support tube 33 has in the region of its two outer ends ring cylindrical sections 35 on which a bearing sleeve 36 around Axis 34 is pivotable. The two bearing sleeves 36 each have on its top an upwardly projecting pin 37 with a radial projecting head 38, with the pin 37 in an associated Elongated hole 39 in the seat plate 6, that is, guided in an elongated hole guide is. The elongated hole 39 has one at its end lying in the direction 18 Keyhole opening 40 through which the head 38 for assembly or Disassembly of the seat plate 6 can be pushed. The width of the head 38 is larger than the width of the elongated hole 39, so that the seat plate 6 opposite de bearing sleeve 36 is guided displaceably along the direction 18, however, it cannot be lifted as long as the head 38 is not in the area the keyhole opening is 40. Are parallel to the elongated hole 39 on both sides downwardly protruding slide rails 41 which like the Seat plate 6 are made of plastic, provided on a parallel to it extending slide support plate 42 are supported, with the sleeve 36th connected and supported on this. The plate 42 is in the direction 18 and counter to this over the sleeve 36 and supports the seat plate 6th from, so that even with a heavy user of the chair 1 a kink the front area of the seat plate 6 is prevented. The plate 42 is like the seat plate 6 in this area, slightly curved upwards, d. H. with respect to the axis 34 convex.

    Die Sitzplatte 6 besteht aus einem vorderen Sitzplatten-Teil 43, der gegenüber der vorderen Trag-Führungs-Einheit 32 abgestützt ist, sowie einem hinteren Sitzplatten-Teil 44, der über eine hintere Trag-Führungs-Einheit 45 gegenüber dem hinteren Sitzträger-Teil 14 abgestützt ist. Die Sitzplatten-Teile 43 und 45 sind über ein Gelenk 46 miteinander verbunden. Bei dem Gelenk 46 handelt es sich um ein Filmscharnier. Die Teile 43 und 44 sowie das Gelenk 46 sind einteilig aus Kunststoff ausgebildet. Das vordere Teil 43 ist, wie bereits erwähnt, nach oben gekrümmt. Das hintere Teil 44 verläuft eben. Die Sitzplatte 6 ist entlang ihres Umfangs mit einem in Draufsicht im wesentlichen rechteckigen, wulstförmigen Rand 47 umgeben, der auf seiner Innenseite eine umlaufende Nut 48 aufweist.The seat plate 6 consists of a front seat plate part 43, which is opposite the front support-guide unit 32 is supported, and one rear seat panel part 44, which has a rear support-guide unit 45 is supported relative to the rear seat support part 14. The seat plate parts 43 and 45 are connected to one another via a joint 46. at the hinge 46 is a film hinge. Parts 43 and 44 and the joint 46 are integrally formed from plastic. The front one As already mentioned, part 43 is curved upwards. The rear part 44 runs flat. The seat plate 6 is along its circumference with an in Top view surrounded substantially rectangular, bead-shaped edge 47, which has a circumferential groove 48 on its inside.

    Die hintere Trag-Führungs-Einheit 45 weist walzenförmige Rollen 49 auf, die in entsprechenden Lagerausnehmungen 50 auf der Unterseite des Sitzplatten-Teils 44 drehbar gelagert sind. Es sind jeweils zwei Rollen 49 hintereinander angeordnet, die auf je einer Gleitfläche 27 der beiden Arme 24 abgestützt sind und das Gleiten der Sitzplatte 6 auf den Gleitflächen 27 verbessern. Zwischen den Armen 24 sind zwei benachbart zu diesen angeordnete, parallel zu diesen verlaufende Führungszapfen 51 an dem Querträger 22 befestigt. Der Querträger 22 weist hierzu Bohrungen 52 auf, durch die ein verjüngter Abschnitt 53 geführt ist, der mit dem Querträger 22 verschweißt ist. Auf der Unterseite des hinteren Sitzplatten-Teils 44 sind zwei Lagerböcke 54 befestigt, die auf den Führungszapfen 51 verschiebbar geführt sind. Die Führungszapfen 51 weisen endseitig eine radial vorspringende, in diese eingeschraubte Schraube 55 auf, um ein Abrutschen des Lagerbocks 54 von dem Führungszapfen 51 zu verhindern. Zwischen dem Lagerbock 54 und einen im Bereich des Querträgers 22 angeordneten, den Führungszapfen 51 umgebenden Anschlag 56, ist ein Federelement in Form von zwei Spiralfedern 57 vorgesehen, zwischen denen eine Hülse 58 angeordnet ist. Die Hülse 58 verhindert, daß bei einem Zusammendrücken der Spiralfedern 57 ein Teil der Spiralfeder auf dem Führungszapfen 51 schabt und entsprechende Geräusche verursacht und diesen verkratzt. Mehrere kleine hintereinander angeordnete Spiralfedern 57, durch eine Hülse 58 geführte sind insofern einer einzigen größeren Spiralfeder vorzuziehen, wobei jedoch selbstverständlich auch eine einzige Spiralfeder auf dem Führungszapfen 51 verwendet werden kann. Der Neigungswinkel a der Führungszapfen 51 gegenüber der Horizontalen B entspricht dem Neigungswinkel a der Gleitflächen 27 gegenüber der Horizontalen B.The rear carrying guide unit 45 has roller-shaped rollers 49, those in corresponding bearing recesses 50 on the underside of the seat plate part 44 are rotatably mounted. There are two roles 49 in a row arranged, each on a sliding surface 27 of the two arms 24th are supported and the sliding of the seat plate 6 on the sliding surfaces 27 improve. Between the arms 24 there are two, parallel to these guide pin 51 on the cross member 22 attached. For this purpose, the cross member 22 has bores 52, through which a tapered section 53 is guided, with the cross member 22 is welded. On the underside of the rear seat part 44 two bearing blocks 54 are attached, which can be moved on the guide pin 51 are led. The guide pins 51 have a radial end projecting, screwed into this screw 55 to prevent slipping to prevent the bearing block 54 from the guide pin 51. Between the bearing block 54 and one arranged in the region of the cross member 22, the stop 56 surrounding the guide pin 51 is a spring element provided in the form of two coil springs 57, between which a sleeve 58 is arranged. The sleeve 58 prevents it from being compressed the coil springs 57 a part of the coil spring on the guide pin 51 scrapes and causes corresponding noises and this scratched. Several small spiral springs 57 arranged one behind the other, guided by a sleeve 58 are thus a single larger coil spring preferred, but of course also a single coil spring can be used on the guide pin 51. The angle of inclination a corresponds to the guide pin 51 with respect to the horizontal B. the angle of inclination a of the sliding surfaces 27 with respect to the Horizontal B.

    Im folgenden wird die Funktionsweise des Stuhles 1 beschrieben, wenn die Position der Rückenlehne arretiert ist. Setzt sich eine Person auf den Sitz 7 und damit auf die Sitzplatte 6, so wird von oben eine Kraft auf den hinteren Sitzplatten-Teil 44 ausgeübt. Entsprechend wird der Teil 44 auf der durch die Gleitflächen 27 gebildeten schiefen Ebene in Figur 4 links nach unten verschoben, wobei gleichzeitig durch den Lagerbock 54 die Spiralfedern 57 auf dem Führungszapfen 51 zusammengedrückt werden und eine Gegenkraft erzeugt wird. Durch die Verschiebung des hinteren Sitzplatten-Teils 44 wird der vordere Sitzplatten-Teil 43 entlang der Richtung 18 auf der Trag-Führungs-Einheit 32 verschoben. Die Verschiebung der Höhe des Gelenks 46 wird durch eine Verschwenkung der Lager-Hülse 36 um die Achse 34 ausgeglichen, so daß es in der Langloch-Führung zu keinem Klemmen kommt. Die Verschiebung der Sitzplatte 6 ist beendet, wenn die durch die Spiralfedern 57 ausgeübte Gegenkraft der von der Schwerkraft des Benutzers stammenden Kraftkomponente entlang der Gleitfläche 27 einschließlich der im System wirkenden Reibungskräfte entspricht. Die Verschiebbarkeit der Sitzfläche entsprechen dem Gewicht und der Schwerpunktslage des Benutzers hat zahlreiche Vorteile. Bei einer größeren und damit in der Regel schwereren Person wird die Sitzplatte 6 weiter nach vorne geschoben, so daß die Oberschenkel des Benutzers besser abgestützt werden. Darüber hinaus findet eine automatische Anpassung der Teile 43 und 44 der Sitzplatte 6 im bezug auf den Schwerpunkt des Benutzers statt, so daß dieser vor allem durch das schräg verlaufende hintere Sitzplatten-Teil 44 automatisch in einer aufrechten Sitzposition unterstützt wird. Ist die Rückenlehne 9 nicht arretiert und verschwenkt der Benutzer diese und ändert damit den Neigungswinkel a der Gleitfläche 27, so findet durch die verschiebbare Sitzplatte 6 automatisch eine Neuanpassung der optimalen Sitzplattenposition statt.The operation of the chair 1 is described below when the Position of the backrest is locked. A person sits on the seat 7 and thus on the seat plate 6, a force is exerted on the rear Seat plate part 44 exercised. Accordingly, the part 44 on the by the inclined plane 27 formed inclined plane in Figure 4 left down moved, while the coil springs through the bearing block 54 57 are compressed on the guide pin 51 and a counterforce is produced. By moving the rear seat panel part 44, the front seat plate part 43 along the direction 18 the support-guide unit 32 moved. The shift in the height of the Joint 46 is by pivoting the bearing sleeve 36 around Axis 34 balanced, so that there is none in the slot guide Clamps is coming. The displacement of the seat plate 6 is complete when the by the coil springs 57 exerted by gravity force component originating from the user along the sliding surface 27 including the frictional forces acting in the system. The Movability of the seat corresponds to the weight and the center of gravity of the user has numerous advantages. With a larger and so that usually heavier person, the seat plate 6 will continue after pushed forward so that the user's thighs are better supported become. In addition, parts 43 are automatically adjusted and 44 of the seat plate 6 in relation to the user's center of gravity, so that this is mainly due to the sloping rear seat panel part 44 is automatically supported in an upright sitting position. Is the Backrest 9 is not locked and the user pivots and changes thus the angle of inclination a of the sliding surface 27, so takes place through the Slidable seat plate 6 automatically readjust the optimal Seat position.

    Claims (10)

    Stuhl, insbesondere Bürostuhl, a. mit einem Fußgestell (2), b. mit einem darauf abgestützten Sitzträger (5), c. mit einer auf dem Sitzträger (5) abgestützten Sitzplatte (6), und d. mit einer an dem Sitzträger (5) befestigten Rückenlehne (9), wobei e. der Sitzträger (5) eine der Rückenlehne (9) zugewandte, hintere Trag-Führungs-Einheit (45) aufweist, i. gegenüber der die Sitzplatte (6) abgestützt ist und ii. auf welcher die Sitzplatte (6) schräg zur Horizontalen gegen mindestens ein Feder-Element verschiebbar geführt ist, und f. der Sitzträger (5) eine vordere Trag-Führungs-Einheit (32) aufweist, i. gegenüber der die Sitzplatte (6) abgestützt ist und ii. auf welcher die Sitzplatte (6) verschiebbar geführt ist. Chair, especially office chair, a. with a base (2), b. with a seat support (5) supported on it, c. with a seat plate (6) supported on the seat support (5), and d. with a backrest (9) attached to the seat support (5), wherein e. the seat support (5) has a rear support-guide unit (45) facing the backrest (9), i. against which the seat plate (6) is supported and ii. on which the seat plate (6) is guided obliquely to the horizontal against at least one spring element, and f. the seat support (5) has a front support-guide unit (32), i. against which the seat plate (6) is supported and ii. on which the seat plate (6) is slidably guided. Stuhl gemäß Anspruch 1, dadurch gekennzeichnet, daß die hintere Trag-Führungs-Einheit (45) mindestens eine schräg zur Horizontalen verlaufende Gleitfläche (27) aufweist.Chair according to claim 1, characterized in that the rear support-guide unit (45) has at least one sliding surface (27) which runs obliquely to the horizontal. Stuhl gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, daß die hintere Trag-Führungs-Einheit (45) mindestens einen Führungszapfen (51) mit mindestens einer diesen umgebenden Spiralfeder (57) aufweist. Chair according to claim 1 or 2, characterized in that the rear support-guide unit (45) has at least one guide pin (51) with at least one spiral spring (57) surrounding it. Stuhl gemäß Anspruch 3, dadurch gekennzeichnet, daß an der Sitzplatte (6) mindestens ein Lager (54) befestigt ist, in dem der mindestens eine Führungszapfen (51) verschiebbar geführt ist.Chair according to claim 3, characterized in that at least one bearing (54) is fastened to the seat plate (6), in which the at least one guide pin (51) is slidably guided. Stuhl gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die vordere Trag-Führungs-Einheit (32) um eine im wesentlichen horizontal verlaufende Schwenkachse (34) gegenüber dem Sitzträger (5) verschwenkbar ist.Chair according to one of the preceding claims, characterized in that the front support-guide unit (32) can be pivoted relative to the seat support (5) about an essentially horizontally extending pivot axis (34). Stuhl gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die vordere Trag-Führungs-Einheit (32) mindestens einen Führungs-Stift (37) aufweist, der in mindestens einem in der Sitzplatte (6) vorgesehenen Langloch (39) verschiebbar geführt ist.Chair according to one of the preceding claims, characterized in that the front support-guide unit (32) has at least one guide pin (37) which is displaceably guided in at least one slot (39) provided in the seat plate (6). Stuhl gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Sitzplatte (6) einen vorderen Sitzplatten-Teil (43) und einen hinteren Sitzplatten-Teil (44) aufweist, die über ein Gelenk (46) miteinander verbunden sind.Chair according to one of the preceding claims, characterized in that the seat plate (6) has a front seat plate part (43) and a rear seat plate part (44) which are connected to one another via a joint (46). Stuhl gemäß Anspruch 3, dadurch gekennzeichnet, daß die Sitzplatte (6) entgegen der Federkraft des Feder-Elements (57) nach vorne schiebbar ist.Chair according to claim 3, characterized in that the seat plate (6) can be pushed forward against the spring force of the spring element (57). Stuhl gemäß Anspruch 3, dadurch gekennzeichnet, daß zwei parallel zueinander verlaufende Führungszapfen (51) vorgesehen sind.Chair according to claim 3, characterized in that two parallel guide pins (51) are provided. Stuhl gemäß Anspruch 2, dadurch gekennzeichnet, daß die Gleitfläche (27) mit der Horizontalen einen Neigungswinkel a einschließt, der veränderbar ist.Chair according to claim 2, characterized in that the sliding surface (27) includes an angle of inclination a which can be varied with the horizontal.
    EP02028450A 2002-01-08 2003-01-02 Chair Expired - Lifetime EP1325693B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE10200355 2002-01-08
    DE10200355A DE10200355A1 (en) 2002-01-08 2002-01-08 chair
    US10/339,563 US6863346B2 (en) 2002-01-08 2003-01-10 Chair

    Publications (3)

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    EP1325693A2 true EP1325693A2 (en) 2003-07-09
    EP1325693A3 EP1325693A3 (en) 2004-01-21
    EP1325693B1 EP1325693B1 (en) 2006-10-11

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    ID=42309969

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    EP02028450A Expired - Lifetime EP1325693B1 (en) 2002-01-08 2003-01-02 Chair

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    US (1) US6863346B2 (en)
    EP (1) EP1325693B1 (en)
    CN (1) CN1268258C (en)
    AT (1) ATE341971T1 (en)
    CA (1) CA2415728A1 (en)
    DE (2) DE10200355A1 (en)
    DK (1) DK1325693T3 (en)
    ES (1) ES2274941T3 (en)
    HK (1) HK1053961A1 (en)

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    CN1268258C (en) 2006-08-09
    CN1432326A (en) 2003-07-30
    US6863346B2 (en) 2005-03-08
    DE50305311D1 (en) 2006-11-23
    DK1325693T3 (en) 2007-02-05
    EP1325693A3 (en) 2004-01-21
    ES2274941T3 (en) 2007-06-01
    US20040135413A1 (en) 2004-07-15
    ATE341971T1 (en) 2006-11-15
    CA2415728A1 (en) 2003-07-08
    EP1325693B1 (en) 2006-10-11
    DE10200355A1 (en) 2003-07-17
    HK1053961A1 (en) 2003-11-14

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