EP0372232A1 - Chair, in particular a work or office chair - Google Patents

Chair, in particular a work or office chair Download PDF

Info

Publication number
EP0372232A1
EP0372232A1 EP89120480A EP89120480A EP0372232A1 EP 0372232 A1 EP0372232 A1 EP 0372232A1 EP 89120480 A EP89120480 A EP 89120480A EP 89120480 A EP89120480 A EP 89120480A EP 0372232 A1 EP0372232 A1 EP 0372232A1
Authority
EP
European Patent Office
Prior art keywords
seat
axis
support arms
rotation
levers
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
EP89120480A
Other languages
German (de)
French (fr)
Other versions
EP0372232B1 (en
Inventor
Heinrich Korn
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.)
Haworth Buroeinrichtungen GmbH
Original Assignee
Roeder 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 Roeder GmbH filed Critical Roeder GmbH
Priority to AT89120480T priority Critical patent/ATE83625T1/en
Publication of EP0372232A1 publication Critical patent/EP0372232A1/en
Application granted granted Critical
Publication of EP0372232B1 publication Critical patent/EP0372232B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • A47C1/031—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
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
    • 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
    • A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
    • 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

Definitions

  • the invention relates to a chair, in particular a work or office chair, with a seat which can be pivoted in the front region about a horizontal pivot axis and whose inclination can be changed and, depending on the change in inclination of the seat, the inclination of the backrest which can be changed disproportionately, in the case of increasing inclination of the seat, the backrest executes an additional relative movement with respect to the facing end of the seat, in which pivot levers are articulated on both sides of the seat on support arms of the chair frame, the free ends of which are fixed and non-rotatably attached to and support the backrest, and in which the seat is rotatably connected to the pivot levers in its central region.
  • Such a chair is known from DE-GM 88 06 835.
  • the relative movements between the backrest and the seat required for the desired seating comfort are achieved by means of an adjusting device comprising swivel levers and driving levers which take over the coupling between the backrest, the seat and the chair frame.
  • an adjusting device comprising swivel levers and driving levers which take over the coupling between the backrest, the seat and the chair frame.
  • the seat in the region of its front edge with respect to the articulation axis of the swivel lever is mounted so that it can be rotated upward on extensions of the support arms so as to be adjustable or to a limited extent and that the axis of rotation between the swivel lever and the seat is adjustable or limited is inconceivable.
  • the end positions of the seat and the backrest coupled therewith are determined in such a way that in one end position the axis of rotation between the seat and the pivot levers lies in a horizontal plane with the axis of rotation of the end section of the seat on the support arms, which are in the region the front ends of the elongated holes of the support arms facing the front, and that in the other end position the axis of rotation between the seat and the pivot levers is lowered below the axis of rotation of the end section of the seat on the support arms, which are then in the region of the lower ends facing the rear the elongated holes of the support arms.
  • the design is carried out so that the seat ends in an end section inclined towards the base surface, that the end section of the seat is rotatably supported on the support arms such that the axis of rotation between the seat and the pivot levers above the connecting line between the pivot axis of the pivot levers on the support arms and the fixed attachment points of the pivot levers on the backrest, that in the entire pivot range of the pivot lever, the axis of rotation between the seat and the pivot levers above the axis of rotation of the end portion of the seat the support arms remains and that when the seat is lowered, the axis of rotation between the seat and the pivot levers adjusts in elongated holes in the seat or the pivot lever limits from the front to the rear and defines the two end positions of the seat, or that the axis of rotation of the end section ites of the seat in horizontal elongated holes of the support arms is limited adjustable and when the seat is lowered, the two end positions of the same determine that the axis of rotation between the seat and the pivot levers above the connecting line between the pivot
  • a kind of counter-movement between the seat and the backrest with simultaneous lowering of the front seat edge is achieved according to one embodiment in that the axis of rotation of the end portion of the seat in slot holes of the support arms is limited adjustable and when lowering the seat, the two end positions of the same defines that the axis of rotation between the seat and the pivot levers above the connecting line between the pivot axis of the pivot levers on the support arms and the fixed attachment points of the pivot levers on the backrest, that the elongated holes of the support arms are offset relative to the pivot axis of the pivot levers on the support arms in addition to the front and are inclined to rise that in one end position the axis of rotation between the seat and the pivot levers lies in a horizontal plane with the axis of rotation of the end portion of the seat on the support arms, which are in the region of the upper ends of the oblong holes facing the front d he is support arms, and that in the other end position, the axis of rotation between the seat and the pivot levers below the axi
  • the invention is characterized in that the pivot levers are designed as armrests or armrests or are connected to them.
  • the seat 16 ends in the front region in the end section 17 which is inclined towards the base.
  • the pivot levers 13 are pivotally connected to the seat 16, as can be seen from the axis of rotation 18, which lies below the connecting line between the pivot axis 12 of the pivot lever 13 on the support arms 11 and the fixed attachment points 14 of the pivot lever 13 on the backrest 15, like the bearing plates 19 on the swivel levers 13.
  • the rotational mounting of the seat 16 on the support arms 11 takes place in the axis of rotation 21 ', which can be formed by bearing bolts which are guided in the elongated holes 20 of the support arms 11 and are adjustable to a limited extent.
  • the elongated holes 20 are introduced into the extensions 22 of the support arms 11 and lie vertically above the articulation axis 12 of the pivot levers 13, whereby they rise towards the front.
  • the two end positions of the seat 16 and an intermediate position of the same are shown. It can be seen that with a change in inclination of the seat 16 when lowering the inclination of the backrest 15 to the vertical changes disproportionately, ie the angle of inclination of the backrest 15 to the vertical increases more than the change in the angle of inclination of the seat 16.
  • the axis of rotation 21 'of Seat 16 on the support arms 11 executes a downward movement in the inclined oblong holes 20, which has the consequence that with the lowering of the seat 16, the distance between the fixed attachment points 14 of the pivot levers 13 on the backrest 15 and the facing end of the seat 16 reduced, as the distances a and b show.
  • the front one The edge of the seat, which is formed by the transition between the seat 16 and the end section 17, is additionally lowered in the direction of the standing surface when the seat 16 is lowered, ie, its inclination is increased.
  • the displacement of the front edge of the seat in the direction of the backrest 15 is negligible.
  • the axis of rotation 21 ' is placed at the transition from the seat 16 to the end portion 17.
  • the length and the inclination of the elongated holes 20 determine the lowering movement of the front seat edge and also the two end positions of the seat 16, by abutment of the bearing bolts 21 at the ends of the elongated holes 20.
  • the elongated holes 20 are located in the support arms 11 above the articulation axis 12 of the swivel levers 13 on the support arms 11, they begin above the articulation axis 12 and extend horizontally towards the front.
  • the axis of rotation 18 between the pivot levers 13 and the seat 16 is now but over the connecting line between the pivot axis 12 of the pivot lever 13 on the support arms 11 and the fixed attachment points 14 of the pivot lever 13 on the backrest 15, as the bearing tabs 23 show.
  • a distance of about 30 mm has proven to be advantageous.
  • the axis of rotation 21 ' can also be done in fixed points of the support arms 11 when the axis of rotation 18 is made limited adjustable.
  • the easiest way to do this can be realized by elongated holes in the seat 16 or the pivot levers 13, which allow a limited horizontal adjustment between the seat 16 and the pivot levers 13.
  • the axis of rotation 21 ' is located in the region of the ends of the elongated holes 20 facing the front and adjusts when the seat 16 is lowered into the region of the ends of the elongated holes 20 facing the rear, so that the front edge of the seat 16 when the seat 16 is lowered is lowered with. Due to the simultaneous adjustment of the seat 16 in the direction of the backrest 15, in connection with the displacement of the axis of rotation 18 between the seat 16 and the pivot levers 13 via the connecting line between the articulation axis 12 and the fixed fastening points 14, a kind of counter-movement of the backrest 15 faces End of the seat 16 reached.
  • the axis of rotation 21 'and the axis of rotation 18 are approximately in a horizontal plane, while in the lower end position of the seat 16, the axis of rotation 18 is pivoted below the axis of rotation 21 '.
  • the elongated holes 20 determine these end positions and bring the lowering path of the front seat edge with their dimensions and their inclination.
  • the pivot levers 13 are preferably designed as armrests or armrests or provided with them.
  • the exemplary embodiments show that no drive levers and drive lever joints are required in order to effect all the adjustment means required for the desired relative movements between the seat, backrest and chair frame by these parts themselves. It depends solely on the arrangement of the elongated holes 20 in the support arms 11 or the seat 16 or the pivot levers 13 and their dimensions and orientation as well as the position of the axis of rotation 18 between the seat 16 and the pivot levers 13 to the connecting line between the pivot axis 12 of the pivot levers 13 on the support arms 11 and the fixed attachment points 14 of the pivot lever 13 on the backrest 15.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

The invention relates to a chair, in particular a work or office chair, having a seat (16), which can be swivelled in the front region about a horizontal swivel axis (12) and can be altered in inclination, and having a backrest (15), which can be altered inevitably overproportionally in inclination in dependence on the alteration of the inclination of the seat, in which, with increasing inclination of the seat, the backrest executes an additional relative movement in relation to the end of the seat facing it, in which swivel levers (13) are attached on both sides of the seat on supporting arms of the seat frame, the free ends of which swivel levers are mounted fixedly and non-rotatably on the backrest (15) and support the latter, and in which the seat (16) is connected rotatably in its central region to the swivel levers (13). The desired relative movements between the seat, the backrest and the chair frame can only be implemented and varied by the coupling between the seat, the backrest, swivel levers constructed as arm supports or armrests and the chair frame by the fact that, in the region of its front edge offset upwards in relation to the attachment axis of the swivel levers, the seat is mounted rotatably on extensions of the supporting arms so as to be non- adjustable or limitedly adjustable, and that the axis of rotation between the swivel levers and the seat is limitedly adjustable or non- adjustable. <IMAGE>

Description

Die Erfindung betrifft einen Stuhl, insbesondere Arbeits- oder Bürostuhl, mit einem im vorderen Bereich um eine horizontale Schwenkachse schwenkbaren und in der Neigung veränderbaren Sitz und einer in Abhängigkeit von der Neigungsänderung des Sitzes zwangsweise in der Neigung überproportional veränderbaren Rückenlehne, bei dem mit zunehmender Neigung des Sitzes die Rückenlehne gegenüber dem zugekehrten Ende des Sitzes eine zusätzliche Relativbewegung ausführt, bei dem zu beiden Seiten des Sitzes an Tragarmen des Stuhlgestelles Schwenkhebel angelenkt sind, deren freie Enden fest und unverdrehbar an der Rückenlehne angebracht sind und diese tragen, und bei dem der Sitz etwa in seinem mittleren Bereich mit den Schwenkhebeln drehbar verbunden ist.The invention relates to a chair, in particular a work or office chair, with a seat which can be pivoted in the front region about a horizontal pivot axis and whose inclination can be changed and, depending on the change in inclination of the seat, the inclination of the backrest which can be changed disproportionately, in the case of increasing inclination of the seat, the backrest executes an additional relative movement with respect to the facing end of the seat, in which pivot levers are articulated on both sides of the seat on support arms of the chair frame, the free ends of which are fixed and non-rotatably attached to and support the backrest, and in which the seat is rotatably connected to the pivot levers in its central region.

Ein derartiger Stuhl ist aus dem DE-GM 88 06 835 bekannt. Die für den gewünschten Sitzkomfort erforderlichen Relativbewegungen zwischen der Rückenlehne und dem Sitz werden dabei mittels einer Verstelleinrichtung aus Schwenkhebeln und Mitführhebeln erreicht, die die Kopplung zwischen der Rückenlehne, dem Sitz und dem Stuhlgestell übernehmen. Selbst dann, wenn die Schwenkhebel als Armlehnen oder Armstützen verwendet werden, sind stets noch die Mitführhebel mit ihren zusätzlichen Gelenken an den Tragarmen des Stuhlgestelles und an dem Sitz erforderlich.Such a chair is known from DE-GM 88 06 835. The relative movements between the backrest and the seat required for the desired seating comfort are achieved by means of an adjusting device comprising swivel levers and driving levers which take over the coupling between the backrest, the seat and the chair frame. Even when the swivel levers are used as armrests or armrests, the entraining levers with their additional joints on the support arms of the chair frame and on the seat are still required.

Es ist Aufgabe der Erfindung, einen Stuhl der eingangs erwähnten Art zu schaffen, bei dem allein durch die Kopplung von Rückenlehne, Sitz und Stuhlgestell die für den gewünschten Sitzkomfort erforderlichen Relativbewegungen dieser Teile erreicht und variiert werden können.It is an object of the invention to provide a chair of the type mentioned, in which only by coupling Backrest, seat and chair frame the relative movements of these parts required for the desired seating comfort can be achieved and varied.

Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß der Sitz im Bereich seiner Vorderkante gegenüber der Anlenkachse der Schwenkhebel nach oben versetzt an Verlängerungen der Tragarme unverstellbar bzw. begrenzt verstellbar drehbar gelagert ist und daß die Drehachse zwischen den Schwenkhebeln und dem Sitz begrenzt verstellbar bzw. unverstellbar ist.This object is achieved according to the invention in that the seat in the region of its front edge with respect to the articulation axis of the swivel lever is mounted so that it can be rotated upward on extensions of the support arms so as to be adjustable or to a limited extent and that the axis of rotation between the swivel lever and the seat is adjustable or limited is inconceivable.

Durch die Wahl einer ortsfesten oder in Langlöchern begrenzt verstellbaren Drehachse zwischen dem Endabschnitt des Sitzes und den Verlängerungen der Tragarme des Stuhlgestelles, sowie der Ausbildung und Anordnung der Langlöcher ergeben sich Sitzverstellungen mit oder ohne Absenkung der vorderen Sitzkante bei einer Veränderung der Sitzneigung. Auch die Relativbewegung zwischen der Rückenlehne und dem Sitz kann durch vorstehende Fakten beeinflußt werden, wobei auch eine gegenläufige Bewegung zwischen der Rückenlehne und dem zugekehrten Ende des Sitzes erreicht werden kann.The choice of a fixed or adjustable in the long holes axis of rotation between the end section of the seat and the extensions of the support arms of the chair frame, as well as the design and arrangement of the long holes result in seat adjustments with or without lowering the front seat edge when changing the seat angle. The relative movement between the backrest and the seat can also be influenced by the above facts, it also being possible to achieve an opposite movement between the backrest and the facing end of the seat.

Ist die Ausgestaltung in der Weise, daß der Endabschnitt im Obergangsbereich zum Sitz mittels Lagerbolzen in Langlöchern der Tragarme drehbar gelagert ist, daß die Langlöcher unmittelbar über der Anlenkachse der Schwenkhebel an den Tragarmen liegen und zur Sitzvorderseite hin ansteigen, daß die Drehachse zwischen dem Sitz und den Schwenkhebeln unterhalb der Verbindungslinie zwischen der Anlenkachse der Schwenkhebel an den Tragarmen und den festen Befestigungspunkten der Schwenkhebel an der Rückenlehne liegt und daß die Lagerbolzen beim Absenken des Sitzes in den Langlöchern von den der Vorderseite zugekehrten Enden zu den der Rückseite zugekehrten Enden gleiten und die beiden Endstellungen des Sitzes festlegen, dann wird bei einer Absenkung des Sitzes die Rückenlehne überproportional in ihrer Neigung verändert, wobei sie noch in Richtung zum zugekehrten Ende des Sitzes verstellt wird. Außerdem wird die vordere Sitzkante nach unten abgesenkt.Is the design in such a way that the end section in the transition area to the seat is rotatably supported by means of bearing bolts in elongated holes in the support arms, that the elongated holes lie directly above the articulation axis of the pivoting levers on the support arms and rise towards the front of the seat, that the axis of rotation between the seat and the swivel levers below the connecting line between the articulation axis of the swivel levers on the support arms and the fixed attachment points of the swivel levers on the backrest and that the bearing bolts slide when the seat is lowered in the elongated holes from the ends facing the front to the ends facing the rear and the two Determine end positions of the seat, then when lowering of the seat changes the backrest disproportionately in its inclination, whereby it is still adjusted in the direction of the facing end of the seat. The front edge of the seat is also lowered.

Die Endstellungen des Sitzes und der damit gekoppelten Rückenlehne werden dabei in der Weise festgelegt, daß in der einen Endstellung die Drehachse zwischen dem Sitz und den Schwenkhebeln in einer horizontalen Ebene mit der Drehachse des Endabschnittes des Sitzes an den Tragarmen liegt, die sich dabei im Bereich der der Vorderseite zugekehrten oberen Enden der Langlöcher der Tragarme befindet, und daß in der anderen Endstellung die Drehachse zwischen dem Sitz und den Schwenkhebeln unterhalb die Drehachse des Endabschnittes des Sitzes an den Tragarmen abgesenkt ist, die sich dann im Bereich der der Rückseite zugekehrten unteren Enden der Langlöcher der Tragarme befindet.The end positions of the seat and the backrest coupled therewith are determined in such a way that in one end position the axis of rotation between the seat and the pivot levers lies in a horizontal plane with the axis of rotation of the end section of the seat on the support arms, which are in the region the front ends of the elongated holes of the support arms facing the front, and that in the other end position the axis of rotation between the seat and the pivot levers is lowered below the axis of rotation of the end section of the seat on the support arms, which are then in the region of the lower ends facing the rear the elongated holes of the support arms.

Wenn gewünscht wird, daß sich die vordere Sitzkante beim Verändern der Sitzneigung nicht absenkt, wird die Ausgestaltung so vorgenommen, daß der Sitz in einen zur Standfläche hin geneigten Endabschnitt ausläuft, daß der Endabschnitt des Sitzes an den Tragarmen unverstellbar drehbar gelagert ist, daß die Drehachse zwischen dem Sitz und den Schwenkhebeln über der Verbindungslinie zwischen der Anlenkachse der Schwenkhebel an den Tragarmen und den festen Befestigungspunkten der Schwenkhebel an der Rückenlehne liegt, daß im gesamten Schwenkbereich der Schwenkhebel die Drehachse zwischen dem Sitz und den Schwenkhebeln über der Drehachse des Endabschnittes des Sitzes an den Tragarmen verbleibt und daß sich beim Absenken des Sitzes die Drehachse zwischen dem Sitz und den Schwenkhebeln sich in Langlöchern des Sitzes oder der Schwenkhebel begrenzt von der Vorderseite zur Rückseite hin verstellt und die beiden Endstellungen des Sitzes festlegt, oder daß die Drehachse des Endabschnittes des Sitzes in horizontalen Langlöchern der Tragarme begrenzt verstellbar ist und beim Absenken des Sitzes die beiden Endstellungen desselben festlegt, daß die Drehachse zwischen dem Sitz und den Schwenkhebeln über der Verbindungslinie zwischen der Anlenkachse der Schwenkhebel an den Tragarmen und den festen Befestigungspunkten der Schwenkhebel an der Rückenlehne liegt und im gesamten Schwenkbereich der Schwenkhebel über der Drehachse des Endabschnittes des Sitzes an den Tragarmen verbleibt. Bei der letzteren Ausgestaltung ist dabei zudem vorgesehen, daß die Langlöcher in den Tragarmen über der Anlenkachse der Schwenkhebel an den Tragarmen beginnen und sich zur Vorderseite hin erstrecken.If it is desired that the front seat edge does not lower when changing the seat inclination, the design is carried out so that the seat ends in an end section inclined towards the base surface, that the end section of the seat is rotatably supported on the support arms such that the axis of rotation between the seat and the pivot levers above the connecting line between the pivot axis of the pivot levers on the support arms and the fixed attachment points of the pivot levers on the backrest, that in the entire pivot range of the pivot lever, the axis of rotation between the seat and the pivot levers above the axis of rotation of the end portion of the seat the support arms remains and that when the seat is lowered, the axis of rotation between the seat and the pivot levers adjusts in elongated holes in the seat or the pivot lever limits from the front to the rear and defines the two end positions of the seat, or that the axis of rotation of the end section ites of the seat in horizontal elongated holes of the support arms is limited adjustable and when the seat is lowered, the two end positions of the same determine that the axis of rotation between the seat and the pivot levers lies above the connecting line between the pivot axis of the pivot levers on the support arms and the fixed attachment points of the pivot levers on the backrest and in the entire pivot range of the pivot levers above the axis of rotation of the end portion of the seat remains on the support arms. In the latter embodiment, it is also provided that the elongated holes in the support arms begin above the articulation axis of the pivot levers on the support arms and extend to the front.

Eine Art Gegenbewegung zwischen dem Sitz und der Rückenlehne bei gleichzeitiger Absenkung der vorderen Sitzkante wird nach einer Ausgestaltung dadurch erreicht, daß die Drehachse des Endabschnittes des Sitzes in Langlöchern der Tragarme begrenzt verstellbar ist und beim Absenken des Sitzes die beiden Endstellungen desselben festlegt, daß die Drehachse zwischen dem Sitz und den Schwenkhebeln über der Verbindungslinie zwischen der Anlenkachse der Schwenkhebel an den Tragarmen und den festen Befestigungspunkten der Schwenkhebel an der Rückenlehne liegt, daß die Langlöcher der Tragarme gegenüber der Anlenkachse der Schwenkhebel an den Tragarmen zusätzlich zur Vorderseite hin versetzt und ansteigend geneigt sind, daß in der einen Endstellung die Drehachse zwischen dem Sitz und den Schwenkhebeln in einer horizontalen Ebene mit der Drehachse des Endabschnittes des Sitzes an den Tragarmen liegt, die sich dabei im Bereich der der Vorderseite zugekehrten oberen Enden der Langlöcher der Tragarme befindet, und daß in der anderen Endstellung die Drehachse zwischen dem Sitz und den Schwenkhebeln unterhalb die Drehachse des Endabschnittes des Sitzes an den Tragarmen abgesenkt ist, die sich dann im Bereich der der Rückseite zugekehrten unteren Enden der Langlöcher der Tragarme befindet.A kind of counter-movement between the seat and the backrest with simultaneous lowering of the front seat edge is achieved according to one embodiment in that the axis of rotation of the end portion of the seat in slot holes of the support arms is limited adjustable and when lowering the seat, the two end positions of the same defines that the axis of rotation between the seat and the pivot levers above the connecting line between the pivot axis of the pivot levers on the support arms and the fixed attachment points of the pivot levers on the backrest, that the elongated holes of the support arms are offset relative to the pivot axis of the pivot levers on the support arms in addition to the front and are inclined to rise that in one end position the axis of rotation between the seat and the pivot levers lies in a horizontal plane with the axis of rotation of the end portion of the seat on the support arms, which are in the region of the upper ends of the oblong holes facing the front d he is support arms, and that in the other end position, the axis of rotation between the seat and the pivot levers below the axis of rotation of the end portion of the seat on the support arms is lowered, which is then in the region of the lower ends of the elongated holes of the support arms facing the rear.

In vorteilhafter Weise ist nach einer Ausgestaltung die Erfindung dadurch gekennzeichnet, daß die Schwenkhebel als Armlehnen oder Armstützen ausgebildet oder mit diesen verbunden sind.Advantageously, according to one embodiment, the invention is characterized in that the pivot levers are designed as armrests or armrests or are connected to them.

Die Erfindung wird anhand von in den Zeichnungen in schematischen Seitenansichten dargestellten Ausführungsbeispielen näher erläutert. Es zeigt:

  • Fig. 1 ein Ausführungsbeispiel eines Stuhles, bei dem sich beim Absenken des Sitzes die Rückenlehne überproportional in ihrer Neigung verändert und sich zusätzlich in Richtung zum zugekehrten Ende des Sitzes bewegt, wobei auch die vordere Sitzkante in ihrer Höhe zur Standfläche abgesenkt wird,
  • Fig. 2 ein weiteres Ausführungsbeispiel eines Stuhles, bei dem sich beim Absenken des Sitzes die Rückenlehne dieselben Bewegungen ausführt, der Sitz aber eine größere Bewegungskomponente in horizontaler Richtung zur Rückenlehne ausführt, so daß die vordere Sitzkante ihre Höhe zur Standfläche praktisch beibehält, und
  • Fig. 3 ein drittes Ausführungsbeispiel eines Stuhles, bei dem die der Rückenlehne zugekehrte Oberkante des Sitzes beim Absenken desselben eine Art Gegenbewegung zur Absenkbewegung der Rückenlehne ausführt und die vordere Sitzkante dennoch mit abgesenkt wird.
The invention is explained in more detail with reference to exemplary embodiments shown in the drawings in schematic side views. It shows:
  • 1 shows an embodiment of a chair in which when the seat is lowered, the backrest changes disproportionately in its inclination and additionally moves in the direction of the facing end of the seat, the front edge of the seat also being lowered in height relative to the standing surface,
  • Fig. 2 shows another embodiment of a chair, in which the backrest performs the same movements when the seat is lowered, but the seat performs a larger component of movement in the horizontal direction to the backrest, so that the front edge of the seat practically maintains its height relative to the standing surface, and
  • Fig. 3 shows a third embodiment of a chair in which the upper edge of the seat facing the backrest executes a kind of counter-movement to the lowering movement of the backrest when the same is lowered and the front seat edge is nevertheless also lowered.

Bei den Ausführungsbeispielen nach den Fig. 1 bis 3 ist vom Stuhlgestell nur das obere Ende der Säule 10 gezeigt, an dem die Tragarme 11 abgehen. An den Tragarmen 11, die auch vereinigt sein können, sind die beiden als Armlehnen oder Armstützen ausgebildeten Schwenkhebel 13 in der Anlenkachse 12 drehbar gelagert. Dies kann in verschiedener Weise konstruktiv gelöst werden. Die anderen Enden der Schwenkhebel 13 sind zu beiden Seiten der Rückenlehne 15 in festen Befestigungspunkten 14 unverdrehbar angebracht, so daß sich bei Veränderung der Neigung der Schwenkhebel 13 auch die Neigung der mitgeführten Rückenlehne 15 zur Vertikalen verändert.1 to 3 of the chair frame, only the upper end of the column 10 is shown, on which the support arms 11 extend. On the support arms 11, which can also be combined, the two pivot levers 13 designed as armrests or armrests can be rotated in the articulation axis 12 stored. This can be solved constructively in various ways. The other ends of the pivot levers 13 are mounted on both sides of the backrest 15 in fixed fastening points 14 so that when the inclination of the pivot levers 13 changes, the inclination of the entrained backrest 15 to the vertical also changes.

Bei dem Ausführungsbeispiel nach Fig. 1 läuft der Sitz 16 im vorderen Bereich in den zur Standfläche hin geneigten Endabschnitt 17 aus. Die Schwenkhebel 13 sind schwenkbar mit dem Sitz 16 verbunden, wie die Drehachse 18 erkennen läßt, die unterhalb der Verbindungslinie zwischen der Anlenkachse 12 der Schwenkhebel 13 an den Tragarmen 11 und den festen Befestigungspunkten 14 der Schwenkhebel 13 an der Rückenlehne 15 liegt, wie die Lagerlaschen 19 an den Schwenkhebeln 13 erkennen lassen. Die Drehlagerung des Sitzes 16 an den Tragarmen 11 erfolgt in der Drehachse 21′, die durch Lagerbolzen gebildet sein kann, welche in den Langlöchern 20 der Tragarme 11 geführt und begrenzt verstellbar sind. Die Langlöcher 20 sind in die Verlängerungen 22 der Tragarme 11 eingebracht und liegen vertikal über der Anlenkachse 12 der Schwenkhebel 13, wobei sie zur Vorderseite hin ansteigend sind. In der Zeichnung sind die beiden Endstellungen des Sitzes 16 und eine Zwischenstellung desselben eingezeichnet. Dabei ist erkennbar, daß sich bei einer Neigungsänderung des Sitzes 16 beim Absenken desselben die Neigung der Rückenlehne 15 zur Vertikalen überproportional ändert, d.h. der Neigungswinkel der Rückenlehne 15 zur Vertikalen nimmt mehr zu als die Änderung des Neigungswinkels des Sitzes 16. Die Drehachse 21′ des Sitzes 16 an den Tragarmen 11 führt dabei in den geneigten Langlöchern 20 eine Abwärtsbewegung aus, was zur Folge hat, daß mit dem Absenken des Sitzes 16 der Abstand zwischen den festen Befestigungspunkten 14 der Schwenkhebel 13 an der Rückenlehne 15 und dem zugekehrten Ende des Sitzes 16 verkleinert, wie die Abstände a und b zeigen. Die vordere Sitzkante, die durch den Übergang zwischen dem Sitz 16 und dem Endabschnitt 17 gebildet wird, wird mit dem Absenken des Sitzes 16, d.h. Vergrößerung seiner Neigung, zusätzlich in Richtung zur Standfläche abgesenkt. Die dabei erfolgende Verschiebung der vorderen Sitzkante in Richtung zur Rückenlehne 15 fällt nicht ins Gewicht. Die Drehachse 21′ ist an den Übergang vom Sitz 16 zum Endabschnitt 17 gelegt. Die Länge und die Neigung der Langlöcher 20 bestimmen die Absenkbewegung der vorderen Sitzkante und auch die beiden Endstellungen des Sitzes 16, durch Anschlag der Lagerbolzen 21 an den Endn der Langlöcher 20.In the exemplary embodiment according to FIG. 1, the seat 16 ends in the front region in the end section 17 which is inclined towards the base. The pivot levers 13 are pivotally connected to the seat 16, as can be seen from the axis of rotation 18, which lies below the connecting line between the pivot axis 12 of the pivot lever 13 on the support arms 11 and the fixed attachment points 14 of the pivot lever 13 on the backrest 15, like the bearing plates 19 on the swivel levers 13. The rotational mounting of the seat 16 on the support arms 11 takes place in the axis of rotation 21 ', which can be formed by bearing bolts which are guided in the elongated holes 20 of the support arms 11 and are adjustable to a limited extent. The elongated holes 20 are introduced into the extensions 22 of the support arms 11 and lie vertically above the articulation axis 12 of the pivot levers 13, whereby they rise towards the front. In the drawing, the two end positions of the seat 16 and an intermediate position of the same are shown. It can be seen that with a change in inclination of the seat 16 when lowering the inclination of the backrest 15 to the vertical changes disproportionately, ie the angle of inclination of the backrest 15 to the vertical increases more than the change in the angle of inclination of the seat 16. The axis of rotation 21 'of Seat 16 on the support arms 11 executes a downward movement in the inclined oblong holes 20, which has the consequence that with the lowering of the seat 16, the distance between the fixed attachment points 14 of the pivot levers 13 on the backrest 15 and the facing end of the seat 16 reduced, as the distances a and b show. The front one The edge of the seat, which is formed by the transition between the seat 16 and the end section 17, is additionally lowered in the direction of the standing surface when the seat 16 is lowered, ie, its inclination is increased. The displacement of the front edge of the seat in the direction of the backrest 15 is negligible. The axis of rotation 21 'is placed at the transition from the seat 16 to the end portion 17. The length and the inclination of the elongated holes 20 determine the lowering movement of the front seat edge and also the two end positions of the seat 16, by abutment of the bearing bolts 21 at the ends of the elongated holes 20.

Bei dem Ausführungsbeispiel nach Fig. 2 liegen die Langlöcher 20 in den Tragarmen 11 über der Anlenkachse 12 der Schwenkhebel 13 an den Tragarmen 11, wobei sie über der Anlenkachse 12 beginnen und sich horizontal in Richtung Vorderseite erstrecken. Die Drehachse 18 zwischen den Schwenkhebeln 13 und dem Sitz 16 liegt jetzt aber über der Verbindungslinie zwischen der Anlenkachse 12 der Schwenkhebel 13 an den Tragarmen 11 und den festen Befestigungspunkten 14 der Schwenkhebel 13 an der Rückenlehne 15, wie die Lagerlaschen 23 zeigen. Ein Abstand von etwa 30 mm hat sich dabei als vorteilhaft erwiesen. Beim Absenken des Sitzes 16 führen die Lagerbolzen 21 eine Horizontalbewegung in den Langlöchern 20 aus, so daß die Drehachse 21′ sich begrenzt in Richtung zur Rückenlehne 15 verlagert. Die zusätzliche Relativbewegung zwischen der Rückenlehne 15 und dem zugekehrten Ende des Sitzes 16 bleibt dabei erhalten, wie die Abstände a und b zwischen diesem Ende des Sitzes 16 und den festen Befestigungsstellen 14 der Schwenkhebel 13 an der Rückenlehne 15 erkennen lassen. Die vordere Sitzkante im Übergangsbereich zwischen dem Sitz 16 und dem Endabschnitt 17 behält ihre Höhe zur Standfläche aber praktisch bei.In the exemplary embodiment according to FIG. 2, the elongated holes 20 are located in the support arms 11 above the articulation axis 12 of the swivel levers 13 on the support arms 11, they begin above the articulation axis 12 and extend horizontally towards the front. The axis of rotation 18 between the pivot levers 13 and the seat 16 is now but over the connecting line between the pivot axis 12 of the pivot lever 13 on the support arms 11 and the fixed attachment points 14 of the pivot lever 13 on the backrest 15, as the bearing tabs 23 show. A distance of about 30 mm has proven to be advantageous. When lowering the seat 16, the bearing pins 21 perform a horizontal movement in the elongated holes 20, so that the axis of rotation 21 'is limited in the direction of the backrest 15. The additional relative movement between the backrest 15 and the facing end of the seat 16 is retained, as the distances a and b between this end of the seat 16 and the fixed attachment points 14 of the pivot lever 13 on the backrest 15 show. However, the front edge of the seat in the transition area between the seat 16 and the end section 17 practically maintains its height relative to the standing surface.

Bei diesem Ausführungsbeispiel kann die Drehachse 21′ auch in Festpunkten der Tragarme 11 erfolgen, wenn die Drehachse 18 begrenzt verstellbar gemacht wird. Dies kann am einfachsten durch Langlöcher in dem Sitz 16 oder den Schwenkhebeln 13 realisiert werden, die eine begrenzte horizontale Verstellung zwischen Sitz 16 und den Schwenkhebeln 13 zulassen.In this embodiment, the axis of rotation 21 'can also be done in fixed points of the support arms 11 when the axis of rotation 18 is made limited adjustable. The easiest way to do this can be realized by elongated holes in the seat 16 or the pivot levers 13, which allow a limited horizontal adjustment between the seat 16 and the pivot levers 13.

Bei dem Ausführungsbeispiel nach Fig. 3 liegt nicht nur die Drehachse 18 zwischen den Schwenkhebeln 13 und dem Sitz 16 über der Verbindungslinie zwischen der Anlenkachse 12 der Schwenkhebel 13 an den Tragarmen 11 und den festen Befestigungsstellen 14 der Schwenkhebel 13 an der Rückenlehne 15, auch die Drehachse 21′ des Sitzes 16 am Stuhlgestell ist verändert. Die Drehachse 21′ liegt über dem Endabschnitt 17, wie die Lagerlaschen 24 zeigen. Die Langlöcher 20 sind außerdem zur Vorderseite hin gegenüber der Anlenkachse 12 der Schwenkhebel 13 an den Tragarmen 11 versetzt und zur Vorderseite hin ansteigend ausgelegt. In der einen Endstellung befindet sich die Drehachse 21′ im Bereich der der Vorderseite zugekehrten Enden der Langlöcher 20 und verstellt sich beim Absenken des Sitzes 16 in den Bereich der der Rückseite zugekehrten Enden der Langlöcher 20, so daß beim Absenken des Sitzes 16 die vordere Sitzkante mit abgesenkt wird. Durch die gleichzeitig stattfindende Verstellung des Sitzes 16 in Richtung zur Rückenlehne 15 wird in Verbindung mit der Verlagerung der Drehachse 18 zwischen dem Sitz 16 und den Schwenkhebeln 13 über die Verbindungslinie zwischen der Anlenkachse 12 und den festen Befestigungsstellen 14 eine Art Gegenbewegung des der Rückenlehne 15 zugekehrten Endes des Sitzes 16 erreicht. Damit wird der gleiche Schwenkwinkel der Schwenkhebel 13 schon bei kleinerer Veränderung des Neigungswinkels des Sitzes 16 erreicht, wie leicht durch Überlagerung der Fig. 3 auf Fig. 1 oder Fig. 2 überprüft werden kann. Dabei wird zudem der Abstand zwischen dem der Rückenlehne 15 zugekehrten Ende des Sitzes 16 und den festen Befestigungsstellen 14 der Schwenkhebel 13 an der Rückenlehne 15 stärker verändert, wie der Abstand b zeigt.In the embodiment according to FIG. 3, not only is the axis of rotation 18 between the pivot levers 13 and the seat 16 above the connecting line between the pivot axis 12 of the pivot levers 13 on the support arms 11 and the fixed fastening points 14 of the pivot levers 13 on the backrest 15, as well Axis of rotation 21 'of the seat 16 on the chair frame is changed. The axis of rotation 21 'lies over the end portion 17, as the bearing tabs 24 show. The elongated holes 20 are also offset toward the front with respect to the articulation axis 12 of the pivot levers 13 on the support arms 11 and designed to rise towards the front. In one end position, the axis of rotation 21 'is located in the region of the ends of the elongated holes 20 facing the front and adjusts when the seat 16 is lowered into the region of the ends of the elongated holes 20 facing the rear, so that the front edge of the seat 16 when the seat 16 is lowered is lowered with. Due to the simultaneous adjustment of the seat 16 in the direction of the backrest 15, in connection with the displacement of the axis of rotation 18 between the seat 16 and the pivot levers 13 via the connecting line between the articulation axis 12 and the fixed fastening points 14, a kind of counter-movement of the backrest 15 faces End of the seat 16 reached. The same pivoting angle of the pivoting lever 13 is thus achieved even with a small change in the angle of inclination of the seat 16, as can easily be checked by superimposing FIG. 3 on FIG. 1 or FIG. 2. The distance between the end of the seat 16 facing the backrest 15 and the fixed fastening points 14 of the pivoting levers 13 on the backrest 15 is also changed more, as the distance b shows.

In der oberen Endstellung des Sitzes 16 liegen die Drehachse 21′ und die Drehachse 18 etwa in einer horizontalen Ebene, während sich in der unteren Endstellung des Sitzes 16 die Drehachse 18 unter die Drehachse 21′ verschwenkt wird. Die Langlöcher 20 bestimmen diese Endstellungen und bringen mit ihren Abmessungen und ihrer Neigung den Absenkweg der vorderen Sitzkante.In the upper end position of the seat 16, the axis of rotation 21 'and the axis of rotation 18 are approximately in a horizontal plane, while in the lower end position of the seat 16, the axis of rotation 18 is pivoted below the axis of rotation 21 '. The elongated holes 20 determine these end positions and bring the lowering path of the front seat edge with their dimensions and their inclination.

Die Schwenkhebel 13 sind vorzugsweise als Armlehnen oder Armstützen ausgebildet oder mit diesen versehen.The pivot levers 13 are preferably designed as armrests or armrests or provided with them.

Die Ausführungsbeispiele zeigen, daß keine Mitführhebel und Mitführhebelgelenke benötigt werden, um alle für die gewünschten Relativbewegungen zwischen Sitz, Rückenlehne und Stuhlgestell erforderlichen Verstellmittel allein durch diese Teile selbst zu bewirken. Dabei kommt es allein auf die Anordnung der Langlöcher 20 in den Tragarmen 11 bzw. dem Sitz 16 oder den Schwenkhebeln 13 und deren Abmessung und Ausrichtung sowie die Lage der Drehachse 18 zwischen dem Sitz 16 und den Schwenkhebeln 13 zur Verbindungslinie zwischen der Anlenkachse 12 der Schwenkhebel 13 an den Tragarmen 11 und den festen Befestigungsstellen 14 der Schwenkhebel 13 an der Rückenlehne 15 an.The exemplary embodiments show that no drive levers and drive lever joints are required in order to effect all the adjustment means required for the desired relative movements between the seat, backrest and chair frame by these parts themselves. It depends solely on the arrangement of the elongated holes 20 in the support arms 11 or the seat 16 or the pivot levers 13 and their dimensions and orientation as well as the position of the axis of rotation 18 between the seat 16 and the pivot levers 13 to the connecting line between the pivot axis 12 of the pivot levers 13 on the support arms 11 and the fixed attachment points 14 of the pivot lever 13 on the backrest 15.

Claims (8)

1. Stuhl, insbesondere Arbeits- oder Bürostuhl, mit einem im vorderen Bereich um eine horizontale Schwenkachse schwenkbaren und in der Neigung veränderbaren Sitz und einer in Abhängigkeit von der Neigungsänderung des Sitzes zwangsweise in der Neigung überproportional veränderbaren Rückenlehne, bei dem mit zunehmender Neigung des Sitzes die Rückenlehne gegenüber dem zugekehrten Ende des Sitzes eine zusätzliche Relativbewegung ausführt, bei dem zu beiden Seiten des Sitzes an Tragarmen des Stuhlgestelles Schwenkhebel angelenkt sind, deren freie Enden fest und unverdrehbar an der Rückenlehne angebracht sind und diese tragen, und bei dem der Sitz etwa in seinem mittleren Bereich mit den Schwenkhebeln drehbar verbunden ist,
dadurch gekennzeichnet,
daß der Sitz (16) im Bereich seiner Vorderkante gegenüber der Anlenkachse (12) der Schwenkhebel (13) nach oben versetzt an Verlängerungen (22) der Tragarme (11) unverstellbar bzw. begrenzt verstellbar drehbar gelagert ist und
daß die Drehachse (18) zwischen den Schwenkhebeln (13) und dem Sitz (16) begrenzt verstellbar bzw. unverstellbar ist.1.Chair, in particular work or office chair, with a seat which can be swiveled in the front region about a horizontal pivot axis and whose inclination can be changed and, depending on the change in inclination of the seat, the inclination of the backrest which can be changed disproportionately, in the case of an increasing inclination of the seat the backrest performs an additional relative movement with respect to the facing end of the seat, in which swivel levers are articulated on both sides of the seat on support arms of the chair frame, the free ends of which are fixed and non-rotatably attached to and support the backrest, and in which the seat is approximately in its middle area is rotatably connected to the swivel levers,
characterized,
that the seat (16) in the region of its front edge with respect to the articulation axis (12) of the swivel lever (13) is displaceably mounted on extensions (22) of the support arms (11) so as to be rotatably adjustable and limited and
that the axis of rotation (18) between the pivot levers (13) and the seat (16) is adjustable or non-adjustable. 2. Stuhl nach Anspruch 1,
dadurch gekennzeichnet,
daß der Endabschnitt (17) im Obergangsbereich zum Sitz (16) mittels Lagerbolzen (21) in Langlöchern (20) der Tragarme (11) drehbar gelagert ist,
daß die Langlöcher (20) unmittelbar über der Anlenkachse (12) der Schwenkhebel (13) an den Tragarmen (11) liegen und zur Sitzvorderseite hin ansteigen,
daß die Drehachse (18) zwischen dem Sitz (16) und den Schwenkhebeln (13) unterhalb der Verbindungslinie zwischen der Anlenkachse (12) der Schwenkhebel (13) an den Tragarmen (11) und den festen Befestigungspunkten (14) der Schwenkhebel (13) an der Rückenlehne (15) liegt und
daß die Lagerbolzen (21) beim Absenken des Sitzes (16) in den Langlöchern (20) von den der Vorderseite zugekehrten Enden zu den der Rückseite zugekehrten Enden gleiten und die beiden Endstellungen des Sitzes (16) festlegen (Fig. 1).2. Chair according to claim 1,
characterized,
that the end section (17) is rotatably mounted in the transition area to the seat (16) by means of bearing bolts (21) in elongated holes (20) of the support arms (11),
that the elongated holes (20) lie directly above the articulation axis (12) of the swivel levers (13) on the support arms (11) and rise towards the front of the seat,
that the axis of rotation (18) between the seat (16) and the pivot levers (13) below the connecting line between the articulation axis (12) of the pivot levers (13) on the support arms (11) and the fixed attachment points (14) of the pivot levers (13) on the backrest (15) and
that the bearing bolts (21) slide when lowering the seat (16) in the elongated holes (20) from the ends facing the front to the ends facing the rear and fixing the two end positions of the seat (16) (Fig. 1). 3. Stuhl nach Anspruch 2,
dadurch gekennzeichnet,
daß in der einen Endstellung die Drehachse (18) zwischen dem Sitz (16) und den Schwenkhebeln (13) in einer horizontalen Ebene mit der Drehachse (21) des Endabschnittes (17) des Sitzes (16) an den Tragarmen (11) liegt, die sich dabei im Bereich der der Vorderseite zugekehrten oberen Enden der Langlöcher (20) der Tragarme (11) befindet, und
daß in der anderen Endstellung die Drehachse (18) zwischen dem Sitz (16) und den Schwenkhebeln (13) unterhalb die Drehachse (21′) des Endabschnittes (17) des Sitzes (16) an den Tragarmen (11) abgesenkt ist, die sich dann im Bereich der der Rückseite zugekehrten unteren Enden der Langlöcher (20) der Tragarme (11) befindet.3. Chair according to claim 2,
characterized,
that in one end position the axis of rotation (18) between the seat (16) and the pivot levers (13) lies in a horizontal plane with the axis of rotation (21) of the end section (17) of the seat (16) on the support arms (11), which is located in the region of the upper ends of the elongated holes (20) of the support arms (11) facing the front, and
that in the other end position, the axis of rotation (18) between the seat (16) and the pivot levers (13) below the axis of rotation (21 ') of the end portion (17) of the seat (16) on the support arms (11) is lowered, which then in the region of the lower ends of the elongated holes (20) of the support arms (11) facing the rear. 4. Stuhl nach Anspruch 1,
dadurch gekennzeichnet,
daß der Sitz (16) in einen zur Standfläche hin geneigten Endabschnitt (17) ausläuft,
daß der Endabschnitt (17) des Sitzes (16) an den Tragarmen (11) unverstellbar drehbar gelagert ist (Drehachse 21′),
daß die Drehachse (18) zwischen dem Sitz (16) und den Schwenkhebeln (13) über der Verbindungslinie zwischen der Anlenkachse (12) der Schwenkhebel (13) an den Tragarmen (11) und den festen Befestigungspunkten (14) der Schwenkhebel (13) an der Rückenlehne (15) liegt,
daß im gesamten Schwenkbereich der Schwenkhebel (13) die Drehachse (18) zwischen dem Sitz (16) und den Schwenkhebeln (13) über der Drehachse (21′) des Endabschnittes (17) des Sitzes (16) an den Tragarmen (11) verbleibt und
daß sich beim Absenken des Sitzes (16) die Drehachse (18) zwischen dem Sitz (16) und den Schwenkhebeln (13) sich in Langlöchern (25) des Sitzes (16) oder der Schwenkhebel (13) begrenzt von der Vorderseite zur Rückseite hin verstellt und die beiden Endstellungen des Sitzes (16) festlegt.4. Chair according to claim 1,
characterized,
that the seat (16) ends in an end section (17) inclined towards the base,
that the end portion (17) of the seat (16) on the support arms (11) is rotatably supported (axis of rotation 21 '),
that the axis of rotation (18) between the seat (16) and the pivot levers (13) over the connecting line between the articulation axis (12) of the pivot levers (13) on the support arms (11) and the fixed attachment points (14) of the pivot levers (13) lies on the backrest (15),
that in the entire pivot range of the pivot lever (13), the axis of rotation (18) between the seat (16) and the pivot levers (13) on the axis of rotation (21 ') of the end portion (17) of the seat (16) on the support arms (11) and
that when the seat (16) is lowered, the axis of rotation (18) between the seat (16) and the pivot levers (13) is limited in oblong holes (25) of the seat (16) or the pivot lever (13) from the front to the rear adjusted and the two end positions of the seat (16). 5. Stuhl nach Anspruch 1,
dadurch gekennzeichnet,
daß die Drehachse (21′) des Endabschnittes (17) des Sitzes (16) in horizontalen Langlöchern (20) der Tragarme (11) begrenzt verstellbar ist und beim Absenken des Sitzes (16) die beiden Endstellungen desselben festlegt,
daß die Drehachse (18) zwischen dem Sitz (16) und den Schwenkhebeln (13) über der Verbindungslinie zwischen der Anlenkachse (12) der Schwenkhebel (13) an den Tragarmen (11) und den festen Befestigungspunkten (14) der Schwenkhebel (13) an der Rückenlehne (15) liegt und im gesamten Schwenkbereich der Schwenkhebel (13) über der Drehachse (21′) des Endabschnittes (17) des Sitzes (16) an den Tragarmen (11) verbleibt (Fig. 2).5. Chair according to claim 1,
characterized,
that the axis of rotation (21 ') of the end section (17) of the seat (16) in horizontal elongated holes (20) of the support arms (11) is adjustable to a limited extent and defines the two end positions of the same when the seat (16) is lowered,
that the axis of rotation (18) between the seat (16) and the pivot levers (13) over the connecting line between the articulation axis (12) of the pivot levers (13) on the support arms (11) and the fixed attachment points (14) of the pivot levers (13) on the backrest (15) and in the entire swivel range of the swivel lever (13) above the axis of rotation (21 ') of the end portion (17) of the seat (16) on the support arms (11) remains (Fig. 2). 6. Stuhl nach Anspruch 4,
dadurch gekennzeichnet,
daß die Langlöcher (20) in den Tragarmen (11) über der Anlenkachse (12) der Schwenkhebel (13) an den Tragarmen (11) beginnen und sich zur Vorderseite hin erstrecken.6. Chair according to claim 4,
characterized,
that the elongated holes (20) in the support arms (11) above the articulation axis (12) of the pivot lever (13) on the support arms (11) begin and extend to the front. 7. Stuhl nach Anspruch 1,
dadurch gekennzeichnet,
daß die Drehachse (21′) des Endabschnittes (17) des Sitzes (16) in Langlöchern (20) der Tragarme (11) begrenzt verstellbar ist und beim Absenken des Sitzes (16) die beiden Endstellungen desselben festlegt,
daß die Drehachse (18) zwischen dem Sitz (16) und den Schwenkhebeln (13) über der Verbindungslinie zwischen der Anlenkachse (12) der Schwenkhebel (13) an den Tragarmen (11) und den festen Befestigungspunkten (14) der Schwenkhebel (13) an der Rückenlehne (15) liegt,
daß die Langlöcher (20) der Tragarme (11) gegenüber der Anlenkachse (12) der Schwenkhebel (13) an den Tragarmen (11) zusätzlich zur Vorderseite hin versetzt und ansteigend geneigt sind,
daß in der einen Endstellung die Drehachse (18) zwischen dem Sitz (16) und den Schwenkhebeln (13) in einer horizontalen Ebene mit der Drehachse (21′) des Endabschnittes (17) des Sitzes (16) an den Tragarmen (11) liegt, die sich dabei im Bereich der der Vorderseite zugekehrten oberen Enden der Langlöcher (20) der Tragarme (11) befindet, und daß in der anderen Endstellung die Drehachse (18) zwischen dem Sitz (16) und den Schwenkhebeln (13) unterhalb die Drehachse (21′) des Endabschnittes (17) des Sitzes (16) an den Tragarmen (11) abgesenkt ist, die sich dann im Bereich der der Rückseite zugekehrten unteren Enden der Langlöcher (20) der Tragarme (11) befindet.7. Chair according to claim 1,
characterized,
that the axis of rotation (21 ') of the end portion (17) of the seat (16) in slots (20) of the support arms (11) is adjustable to a limited extent and defines the two end positions of the seat (16) when the seat is lowered,
that the axis of rotation (18) between the seat (16) and the pivot levers (13) over the connecting line between the articulation axis (12) of the pivot levers (13) on the support arms (11) and the fixed attachment points (14) of the pivot levers (13) lies on the backrest (15),
that the elongated holes (20) of the support arms (11) are offset relative to the articulation axis (12) of the swivel levers (13) on the support arms (11) in addition to the front and are inclined ascending,
that in one end position the axis of rotation (18) between the seat (16) and the pivot levers (13) lies in a horizontal plane with the axis of rotation (21 ') of the end portion (17) of the seat (16) on the support arms (11) , which is located in the region of the upper ends of the elongated holes (20) of the support arms (11) facing the front, and that in the other end position the axis of rotation (18) between the seat (16) and the pivoting levers (13) below the axis of rotation (21 ') of the end portion (17) of the seat (16) on the support arms (11) is lowered, which is then in the area the lower ends of the elongated holes (20) of the support arms (11) facing the rear. 8. Stuhl nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
daß die Schwenkhebel (13) als Armlehnen oder Armstützen ausgebildet oder mit diesen verbunden sind.8. Chair according to one of claims 1 to 7,
characterized,
that the pivot levers (13) are designed as armrests or armrests or are connected to them.
EP89120480A 1988-11-18 1989-11-06 Chair, in particular a work or office chair Expired - Lifetime EP0372232B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89120480T ATE83625T1 (en) 1988-11-18 1989-11-06 CHAIR, ESPECIALLY WORK OR OFFICE CHAIR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3838999A DE3838999A1 (en) 1988-11-18 1988-11-18 CHAIR, ESPECIALLY WORK OR OFFICE CHAIR
DE3838999 1988-11-18

Publications (2)

Publication Number Publication Date
EP0372232A1 true EP0372232A1 (en) 1990-06-13
EP0372232B1 EP0372232B1 (en) 1992-12-23

Family

ID=6367401

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89120480A Expired - Lifetime EP0372232B1 (en) 1988-11-18 1989-11-06 Chair, in particular a work or office chair

Country Status (7)

Country Link
US (1) US5575095A (en)
EP (1) EP0372232B1 (en)
JP (1) JPH0620410B2 (en)
AT (1) ATE83625T1 (en)
CA (1) CA2002948C (en)
DE (2) DE3838999A1 (en)
ES (1) ES2036782T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0535262A1 (en) * 1991-09-30 1993-04-07 WIESNER-HAGER MÖBEL GmbH Adjustable chair which is adaptable to a person's stature, particularly rotatable chair

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6007150A (en) 1998-03-08 1999-12-28 Milsco Manufacturing Company Motorcycle seat with adjustable backrest
WO2013164078A1 (en) 2012-05-04 2013-11-07 Sander, Armin Chair, in particular office chair
CN106455821A (en) 2014-04-17 2017-02-22 Hni技术公司 Chair and chair control assemblies, systems, and methods

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3322450A1 (en) * 1983-06-22 1985-01-10 August Fröscher GmbH & Co KG, 7141 Steinheim Device for adjusting the seat and the backrest of chairs
DE8616836U1 (en) * 1986-06-24 1987-10-22 Hartmann, Günter, 5800 Hagen Seating furniture, especially chairs

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4429917A (en) * 1981-04-29 1984-02-07 Hauserman Inc. Int. Furniture & Textile Division Chair
WO1983000610A1 (en) * 1981-08-19 1983-03-03 Giroflex Entwicklungs Ag Chair
FR2533428A1 (en) * 1982-09-23 1984-03-30 Strafor Sa Seat mechanism with a differential movement for tip-up seat
ATE27763T1 (en) * 1983-10-05 1987-07-15 Giroflex Entwicklungs Ag CHAIR WITH TILTABLE SEAT AND BACKREST.
DE3429186A1 (en) * 1984-08-08 1986-02-20 Uredat-Neuhoff, Angela, 4592 Lindern SEAT, IN PARTICULAR OFFICE CHAIR
CH666171A5 (en) * 1984-10-03 1988-07-15 Giroflex Entwicklungs Ag CHAIR WITH REAR TILTABLE SEAT AND BACKREST CARRIER.
US4616877A (en) * 1985-05-09 1986-10-14 Kimball International, Inc. Chair with back height adjustment
DE8515221U1 (en) * 1985-05-23 1986-05-22 VOKO - Franz Vogt & Co, 6301 Pohlheim Seating
DE8713972U1 (en) * 1987-10-17 1987-11-26 Nikov, Ljubomir, 6457 Maintal Chair or armchair with synchronously adjustable inclination of backrest and seat
DE3744363A1 (en) * 1987-12-29 1989-07-13 Roeder Gmbh CHAIR, ESPECIALLY WORK OR OFFICE CHAIR
DE3744365C3 (en) * 1987-12-29 1994-04-14 Roeder Gmbh Chair, in particular work or office chair
DE8806835U1 (en) * 1988-05-19 1988-09-08 Roeder GmbH, 6000 Frankfurt Chair, especially work or office chair
DE8814409U1 (en) * 1988-11-18 1989-01-26 Roeder GmbH, 6000 Frankfurt Chair, especially work or office chair
DE3916474A1 (en) * 1989-05-20 1990-11-22 Roeder Soehne Sitzmoebelfab CHAIR, ESPECIALLY WORK OR OFFICE CHAIR

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3322450A1 (en) * 1983-06-22 1985-01-10 August Fröscher GmbH & Co KG, 7141 Steinheim Device for adjusting the seat and the backrest of chairs
DE8616836U1 (en) * 1986-06-24 1987-10-22 Hartmann, Günter, 5800 Hagen Seating furniture, especially chairs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0535262A1 (en) * 1991-09-30 1993-04-07 WIESNER-HAGER MÖBEL GmbH Adjustable chair which is adaptable to a person's stature, particularly rotatable chair

Also Published As

Publication number Publication date
DE58903114D1 (en) 1993-02-04
EP0372232B1 (en) 1992-12-23
US5575095A (en) 1996-11-19
CA2002948A1 (en) 1990-05-18
ES2036782T3 (en) 1993-06-01
DE3838999A1 (en) 1990-05-23
JPH0620410B2 (en) 1994-03-23
CA2002948C (en) 1994-07-26
ATE83625T1 (en) 1993-01-15
JPH02172410A (en) 1990-07-04
DE3838999C2 (en) 1990-11-08

Similar Documents

Publication Publication Date Title
DE3916474C2 (en)
DE3817761C2 (en)
EP0202390B1 (en) Sitting furniture
DE3873586T2 (en) ADJUSTABLE CARRIER ARRANGEMENT.
AT402602B (en) CHAIR CHAIR
EP0088956B1 (en) Dental chair
EP0176816A1 (en) Chair with reclining seat and backrest support
DE3605809A1 (en) Piece of seating furniture
WO2007000270A1 (en) Synchronisation mechanism
DE4208648C1 (en)
DE19738200C2 (en) Vehicle seat with headrest
EP0364822B1 (en) Table with a frame and a top as well as an adjusting device for varying the height and the inclination of the top of the table
EP0372232B1 (en) Chair, in particular a work or office chair
DE3933237C2 (en)
EP0332088B1 (en) Chair, particularly a work and office chair
DE8806835U1 (en) Chair, especially work or office chair
WO2024013141A1 (en) Synchronizing mechanism for a chair
DE2049282B2 (en) Adjustable height patient chair - has shin support swung into triangular space formed by lifting mechanism on lowering
EP1662067B1 (en) Awning
DE8814409U1 (en) Chair, especially work or office chair
CH719886A1 (en) SYNCHRONOUS MECHANICS FOR CHAIR.
DE3619928A1 (en) Functional seating furniture
DE3120715C2 (en)
DE8911868U1 (en) Table with table frame and table top as well as adjustment device for changing the height and inclination of the table top
DE8906296U1 (en) Chair, especially work or office chair

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19900526

17Q First examination report despatched

Effective date: 19910805

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19921223

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19921223

Ref country code: SE

Effective date: 19921223

REF Corresponds to:

Ref document number: 83625

Country of ref document: AT

Date of ref document: 19930115

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19921217

REF Corresponds to:

Ref document number: 58903114

Country of ref document: DE

Date of ref document: 19930204

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2036782

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19931106

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19931130

Ref country code: LI

Effective date: 19931130

Ref country code: CH

Effective date: 19931130

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19940802

NLS Nl: assignments of ep-patents

Owner name: HAWORTH BUROEINRICHTUNGEN GMBH

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20011122

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20011130

Year of fee payment: 13

Ref country code: FR

Payment date: 20011130

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20011211

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20011212

Year of fee payment: 13

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021106

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021107

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021130

BERE Be: lapsed

Owner name: *ROEDER G.M.B.H.

Effective date: 20021130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030601

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030731

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20030601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20031213