EP0933046A2 - Stuhl - Google Patents
Stuhl Download PDFInfo
- Publication number
- EP0933046A2 EP0933046A2 EP98123276A EP98123276A EP0933046A2 EP 0933046 A2 EP0933046 A2 EP 0933046A2 EP 98123276 A EP98123276 A EP 98123276A EP 98123276 A EP98123276 A EP 98123276A EP 0933046 A2 EP0933046 A2 EP 0933046A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- rotation
- axis
- support
- backrest
- 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.)
- Withdrawn
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
- A47C1/03255—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
- 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
- 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
- A47C1/03266—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with adjustable elasticity
-
- 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
- A47C1/03283—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with fluid springs
Definitions
- the invention relates to a chair with a bearing block, in the middle or rear area a backrest support around a first axis of rotation and in its front end area a seat support about a second axis of rotation are pivotally mounted, in which the seat support and the backrest support are pivotally mounted on a third axis of rotation and at which the rear section of the backrest support with an attached Backrest by means of a spring mechanism, which is under the front seating area has a permanently installed, manually adjustable spring in the unloaded Condition is pivoted upwards.
- Such a chair is identified as known in DE 40 20 868 C1.
- At this known chair are under a rear area of the seat support an extension of the backrest support provided two gas pressure springs, while in front of the axis of rotation of the seat support is adjustable by means of a handle
- Weight compensation spring is arranged in the form of a coil spring.
- the adjustable weight compensation spring is enough to cover a certain weight range to be able to balance different users, but they are enough Setting options are usually not enough to ensure optimal coordination large weight differences between z. B. 45 kg and 120 kg to obtain.
- the invention has for its object in a chair the specified Make the adjustment of the spring forces easier and more precise to be able to.
- tension springs are provided, which the spring forces add above a lower limit and e.g. B. two different weight ranges between 40 and 70 kilograms and 70 and 120 kilograms together cover with the remaining feathers. Coordinating the spring forces for the chair mechanics on certain users is therefore without great assembly and Costs possible, but also the storage is easy.
- a white one The advantage of the tension spring is that it provides a basic preload can, with which a spring tension is guaranteed even when the Fixed spring for a very light person set to minimum spring force is.
- a structure of the spring mechanism which is advantageous for the arrangement and operation is supported by the fact that the fixed spring is inclined or is formed vertically downward compression coil spring and with its top on the bearing block and its bottom on a support plate a hand-operated screw wheel is supported and that the screw wheel screwed onto a screw bolt protruding through the inside of the spring is on the other hand on a holding element in the front region of the backrest support is connected.
- kit of the spring mechanism includes a gas spring and a locking device that can be used in its place, which has at least one pivot lever, and that the pivot lever at one end pivotable on a fixed axis of rotation of the bearing block is stored and at its other end several recesses or projections has that in a matching counter element below the engage or snap into the first axis of rotation by means of gravity or spring force, and that dr at least one pivot lever by means of a manually operable Release element can be released from the locking position.
- gas spring which can also be locked, is used in conjunction with the coil springs overall achieved a favorable spring characteristic, with gas springs however, the costs of a chair increase significantly.
- the simple structure is favored by the measures that the gas spring or the locking device with its one end region on the front Axis of rotation and with its other end portion on a parallel to the axis of rotation extending cross strut is attached or supported and that on the cross strut also hooked the front end of the tension spring in relation to the chair is.
- the locking device at least two on the first Rotation axis arranged side by side and pivotable independently of each other has plate-shaped pivot lever, the recesses or Projections of one pivot lever compared to those of the other pivot lever are offset in the longitudinal direction of the locking elements, so that single pivot lever are formed as relatively thin plates, wherein relatively broad and therefore stable tongues for support between the recesses are present because the recesses on the other pivot levers are arranged in the area of these tongues.
- the locking device can be released in a simple manner by that the release element is rotatable transversely to the at least one pivot lever is mounted on a holder which is fixed with respect to the swivel levers and on account of a cross-sectional contour that is not round in cross-section, the swivel levers from the The rest position is released by turning.
- the swivel levers are with a kind of eccentric of the release element pivoted out of the locking position, so that the adjustment movement is released from the seat and backrest.
- a favorable movement when swiveling the backrest and synchronously the seat in conjunction with the spring mechanism is thereby achieved that the geometric relationships between the axes of rotation so are coordinated that the pivot angle of the backrest support to the Swivel angle of the seat support is about 2.1.
- a lowering of the front seating area while moving back the seat with the seat support is caused by the fact that in the front area of the seat support is an oblique from the top front to the back bottom Guide slot is provided, with which it on a front, second Swiveling and sliding axis of rotation in the front end area of the bearing block is stored. This also counteracts a so-called pull-out effect.
- FIG. 1 shows a chair 1 with an essentially arranged under a seat 3 mechanical adjustment device 2, a support frame 5 and one Backrest 4.
- the backrest 4 is on a reaching under the seat 3 Backrest support 6 connected to a first axis of rotation 5.4 a bearing block 5.1 of the support frame 5 is pivotally mounted.
- the first The axis of rotation 5.4 runs transversely to the longitudinal direction of the seat 3 and horizontally and lies in the direction of the front edge of the seat slightly in front of a support column 5.2 of the support frame 5.
- the seat 3 is mounted on a seat support 7, which is in its front area a guide slot that runs diagonally from top to bottom and back 7.1, with which it on a front, second axis of rotation 5.5, which runs parallel to the first axis of rotation 5.4, pivotable in the front End region of the bearing block 5.1 is stored.
- the backrest support 6 and the seat support 7 are slightly behind the upper one End of the support column 5.2 and slightly above the first axis of rotation 5.4 on one third axis of rotation 6.3 is pivotally mounted one inside the other, so that when pivoting the backrest 4 synchronously with this, the seat 3 moved in the appropriate pivot direction, but with a smaller Swivel angle, which advantageously z. B. is half the swivel angle the backrest 4. This is due to the arrangement of the axes of rotation 5.4, 5.5 and 6.3 and the swivel angle thus formed.
- the backrest support 6 is extended beyond the first axis of rotation 5.4 and forward over a holding element 6.1 in a slot 5.3 of the bearing block 5, whereby the pivoting movement of the backrest support 6 or the backrest 4 and the seat support 7 with the seat 3 is limited.
- the backrest 4 and the seat 3 are by means of a spring mechanism pivoted forward or upward.
- the spring mechanism has a compression spring 2.1, a gas spring 2.4 and an easily replaceable Compensating spring 9, which is also shown in FIGS. 3 and 4.
- the Gas spring 2.4 is in the area of the physically trained second axis of rotation 5.5 with one end and a downward facing section in the front area of the backrest support 6 provided coupling element 6.2 attached with its rear end so that it is one between the backrest support 6 and the bearing block 5.1 acts compression spring.
- the spring 2.1 is designed as a coil spring that slants downwards, with its lower one Section is arranged facing forward and with its top against an abutment attached to the bearing block 5.1 and with its lower Supports area on a support element arranged in a handle 5.2, which is attached to a bolt 2.3 which projects through the interior of the spring 2.1 on which the handle 2.2 designed as a screw wheel is rotatable is held.
- the screw bolt 2.3 is opposite the handle 2.2 End region on the holding element 6.1 of the backrest support 6 coupled, the spring 2.1 acting as a compression spring.
- 3 is an im essential spring projecting vertically downwards, otherwise corresponding 2.1 shown.
- the compensating spring 9 is designed as a helical spring, specifically as a tension spring, which has simple hook elements on both ends with which it without further aids on a pin or in a hole in the bearing block 5.1 and the axis-shaped coupling element 6.2 are hooked can.
- the compensating spring 9 is dimensioned so that it only the spring forces provides above a desired lower limit, and in different Execution on desired, usually occurring weight ranges is tuned so that in connection with the setting about the handle 2.2 z. B. a range of users between 45 kilograms and 70 kg with a version of the balance spring 9 and a range between 70 kg and 120 kg with another embodiment the compensation spring 9 can be set.
- a locking device 2.5 can be attached to the same Bearings are used, as can also be seen from FIGS. 3 and 4.
- the Locking device 2.5 has plate-shaped adjacently located in a supporting part Swivel levers 2.6 and 2.7, which can be swiveled towards one another.
- the locking device 2.5 is at one end on the second axis of rotation 5.5 stored and supported while recesses at their other end 2.8 has, with which they in different pivot positions of the backrest support 6 can be supported on the coupling element 6.2.
- the side-by-side swivel levers 2.6 and 2.7 point towards each other offset recesses 2.8, so that the same pivot lever the distances can be relatively large between the recesses 2.8 and between increased stability is achieved while at the same time grading between the pivot positions of the backrest support 6 by the displacement the recesses 2.8 is kept relatively fine.
- the portal-like Recesses 2.8 are in the upper area in the longitudinal direction Swivel lever 2.6, 2.7 formed slot, and the corresponding Swivel lever can be in a desired swivel position of the backrest 4 fall into the coupling element 6.2 by means of gravity.
- a release element 8 in the form of an angled rod provided that, for example, an oval in its front end region Cross section has to the pivot lever 2.6, 2.7 by rotating the release member to raise so that the axis-shaped coupling element 6.2 in move the longitudinal slot of the swivel levers 2.6, 2.7 to another position can.
- can this also shaped differently in its front area, e.g. B. twice at right angles be angled so that the front portion of the rod is offset in parallel is aligned with the rear section and points forward.
- the described structure of the adjustment device 2 results in the same basic structure the chair can be varied with simple, inexpensive measures, being adapted to different requirements the user is simple.
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)
Abstract
Description
- Fig. 1
- einen Ausschnitt des Stuhls in seitlicher Darstellung und
- Fig. 2
- eine Detaildarstellung der Fig. 1 und
- Fig. 3 und 4
- einen Ausschnitt einer abgewandelten Verstelleinrichtung in seitlicher Ansicht und Draufsicht.
Claims (8)
- Stuhl mit einem Lagerbock (5.1), in dessen mittlerem oder hinterem Bereich ein Rückenlehnenträger (6) um eine erste Drehachse (5.4) und in dessen vorderem Endbereich ein Sitzträger (7) um eine zweite Drehachse (5.5) schwenkbar gelagert sind, bei dem der Sitzträger (7) und der Rückenlehnenträger (6) an einer dritten Drehachse (6.3) aneinander schwenkbar gelagert sind und bei dem der hintere Abschnitt des Rückenlehnenträgers (6) mit einer angeschlossenen Rückenlehne (4) mittels eines Federmechanismus (2.1, 2.4, 9), der unter dem vorderen Sitzbe-reich eine fest eingebaute, von Hand einstellbare Feder (2.1) aufweist, im unbelasteten Zustand nach oben geschwenkt ist,
dadurch gekennzeichnet,daß der Federmechanismus zum Erzielen unterschiedlicher Federkräfte als Bausatz mit der fest eingebauten Feder (2.1) und verschiedenen, einerseits an dem Rückenlehnenträger (6) unterhalb der ersten Drehachse (5.4) und andererseits an einer hinter der ersten Drehachse (5.4) liegenden Stelle des Lagerbocks (5.1) einhängbaren Spannfedern (9) ausge-bildet ist. - Stuhl nach Anspruch 1,
dadurch gekennzeichnet,daß die fest eingebaute Feder (2.1) als schräg oder vertikal nach unten gerichtete Druck-Spiralfeder ausgebildet ist und mit ihrer Oberseite an dem Lagerbock (5.1) und mit ihrer Unterseite an einer Stützplatte eines von Hand betätigbaren Schraubrads (2.2) abgestützt ist unddaß das Schraubrad (2.2) auf einen das Innere der Feder (2.1) durchragenden Schraubbolzen (2.3) aufgeschraubt ist, der andererseits an einem Halteelement (6.1) im vorderen Bereich des Rückenlehnenträgers (6.1) angebunden ist. - Stuhl nach Anspruch 1 oder 2,
dadurch gekennzeichnet,daß der Bausatz des Federmechanismus weiterhin eine Gasfeder (2.4) und eine an deren Stelle einsetzbare Arretiervorrichtung (2.5) beinhaltet, die mindestens einen Schwenkhebel (2.6, 2.7) aufweist, unddaß der Schwenkhebel (2.6, 2.7) an seinem einen Ende an einer festen Drehachse (5.5) des Lagerbocks (5.1) schwenkbar gelagert ist und an seinem anderen Ende mehrere Ausnehmungen oder Vorsprünge aufweist, die in ein darauf abgestimmtes Gegenelement (6.2) unterhalb der ersten Drehachse (5.4) mittels Schwerkraft oder Federkraft einfallen oder einschnappen, und daß der mindestens eine Schwenkhebel mittels eines von Hand betätigbaren Freigabeelements (8) aus der Arretierstellung freigebbar ist. - Stuhl nach Anspruch 3,
dadurch gekennzeichnet,daß die Gasfeder (2.4) bzw. die Arretiervorrichtung (2.5) mit ihrem einen Endbereich an der vorderen Drehachse (5.5) und mit ihrem anderen Endbereich an einer parallel zu der Drehachse (5.5) verlaufenden Querstrebe (6.2) angebracht bzw. abgestützt ist unddaß an der Querstrebe (6.2) auch das in Bezug auf den Stuhl (1) vordere Ende der Spannfeder (9) eingehängt ist. - Stuhl nach Anspruch 3 oder 4,
dadurch gekennzeichnet,daß die Arretiervorrichtung (2.5) mindestens zwei auf der ersten Drehachse (5.5) nebeneinander angeordnete und unabhängig voneinander schwenkbare plattenförmige Schwenkhebel (2.6, 2.7) aufweist, wobei die Ausnehmungen bzw. Vorsprünge des einen Schwenkhebels (2.6 bzw. 2.7) gegenüber denen des anderen Schwenkhebels (2.7 bzw. 2.6) in Längsrichtung der Arretierelemente (2.6, 2.7) versetzt sind. - Stuhl nach einem der Ansprüche 3 bis 5,
dadurch gekennzeichnet,daß das Freigabeelement (8) quer zu dem mindestens einen Schwenkhebel (2.6, 2.7) drehbar an einem bezüglich der Schwenkhebel (2.6, 2.7) festen Halter gelagert ist und aufgrund einer im Querschnitt unrunden Querschnittskontur die Schwenkhebel (2.6, 2.7) aus der Rastposition durch Drehen freigibt. - Stuhl nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,daß die geometrischen Beziehungen zwischen den Drehachsen (5.4, 5.5) derart abgestimmt sind, daß sich der Schwenkwinkel des Rückenlehnenträgers zu dem Schwenkwinkel des Sitzträger (5) etwa 2.1 beträgt. - Stuhl nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,daß im vorderen Bereich des Sitzträgers (7) ein schräg von vorne oben nach hinten unten verlaufender Führungsschlitz (7.1) vorgesehen ist, mit dem er an einer vorderen, zweiten Drehachse (5.5) schwenkbar und gleitend im vorderen Endbereich des Lagerbocks 5.1 gelagert ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803496 | 1998-01-30 | ||
DE19803496A DE19803496C2 (de) | 1998-01-30 | 1998-01-30 | Stuhl |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0933046A2 true EP0933046A2 (de) | 1999-08-04 |
EP0933046A3 EP0933046A3 (de) | 2002-05-15 |
Family
ID=7856063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98123276A Withdrawn EP0933046A3 (de) | 1998-01-30 | 1998-12-07 | Stuhl |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0933046A3 (de) |
DE (1) | DE19803496C2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2002224783A1 (en) | 2000-10-18 | 2002-04-29 | Roder Haworth Buro-Sitzmobel Gmbh | Office chair |
DE10123231C2 (de) * | 2001-05-12 | 2003-05-15 | Roeder Haworth Buero Sitzmoebe | Bürostuhl |
DE102006023982A1 (de) * | 2006-05-22 | 2007-12-06 | Wilkhahn Wilkening + Hahne Gmbh & Co. Kg | Stuhl |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2733322C3 (de) | 1977-07-23 | 1980-08-07 | Protoned B.V., Amsterdam | Arbeitsstuhl |
DE3332450A1 (de) | 1982-09-16 | 1984-03-22 | The Torrington Co., 06790 Torrington, Conn. | Rollenlager |
DE3617539C1 (de) | 1986-05-24 | 1987-07-23 | Grammer Sitzsysteme Gmbh | Sitz mit verstellbarer Sitzplatte und neigbarer Rueckenlehne |
DE4020868C1 (de) | 1990-05-01 | 1992-02-06 | Roeder Gmbh Sitzmoebelwerke, 6000 Frankfurt, De |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4009856A (en) * | 1976-01-13 | 1977-03-01 | Herman Miller, Inc. | Mechanism for tilting chairs |
DE3322450A1 (de) * | 1983-06-22 | 1985-01-10 | August Fröscher GmbH & Co KG, 7141 Steinheim | Vorrichtung zum verstellen des sitzes und der rueckenlehne von stuehlen |
DE3900220A1 (de) * | 1989-01-05 | 1990-07-12 | Wilkhahn Wilkening & Hahne | Stuhl |
ATE91396T1 (de) * | 1989-09-21 | 1993-07-15 | Sitag Ag | Stuhl, insbesondere arbeitsstuhl. |
-
1998
- 1998-01-30 DE DE19803496A patent/DE19803496C2/de not_active Expired - Fee Related
- 1998-12-07 EP EP98123276A patent/EP0933046A3/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2733322C3 (de) | 1977-07-23 | 1980-08-07 | Protoned B.V., Amsterdam | Arbeitsstuhl |
DE3332450A1 (de) | 1982-09-16 | 1984-03-22 | The Torrington Co., 06790 Torrington, Conn. | Rollenlager |
DE3617539C1 (de) | 1986-05-24 | 1987-07-23 | Grammer Sitzsysteme Gmbh | Sitz mit verstellbarer Sitzplatte und neigbarer Rueckenlehne |
DE4020868C1 (de) | 1990-05-01 | 1992-02-06 | Roeder Gmbh Sitzmoebelwerke, 6000 Frankfurt, De |
Also Published As
Publication number | Publication date |
---|---|
EP0933046A3 (de) | 2002-05-15 |
DE19803496A1 (de) | 1999-08-12 |
DE19803496C2 (de) | 2001-09-06 |
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