EP0933046A2 - Chaise - Google Patents

Chaise Download PDF

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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Withdrawn
Application number
EP98123276A
Other languages
German (de)
English (en)
Other versions
EP0933046A3 (fr
Inventor
Heinrich Korn
Wilfried Lange
Wolfgang Kurzschenkel
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 BUEROEINRICHTUNGEN GMBH
Original Assignee
Dlw Bueroeinrichtungen 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 Dlw Bueroeinrichtungen GmbH filed Critical Dlw Bueroeinrichtungen GmbH
Publication of EP0933046A2 publication Critical patent/EP0933046A2/fr
Publication of EP0933046A3 publication Critical patent/EP0933046A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—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)
EP98123276A 1998-01-30 1998-12-07 Chaise Withdrawn EP0933046A3 (fr)

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 (fr) 1999-08-04
EP0933046A3 EP0933046A3 (fr) 2002-05-15

Family

ID=7856063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98123276A Withdrawn EP0933046A3 (fr) 1998-01-30 1998-12-07 Chaise

Country Status (2)

Country Link
EP (1) EP0933046A3 (fr)
DE (1) DE19803496C2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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 (fr) 1990-05-01 1992-02-06 Roeder Gmbh Sitzmoebelwerke, 6000 Frankfurt, De

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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
EP0419404B1 (fr) * 1989-09-21 1993-07-14 Sitag Ag Chaise, notamment chaise de bureau

Patent Citations (4)

* Cited by examiner, † Cited by third party
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 (fr) 1990-05-01 1992-02-06 Roeder Gmbh Sitzmoebelwerke, 6000 Frankfurt, De

Also Published As

Publication number Publication date
DE19803496C2 (de) 2001-09-06
DE19803496A1 (de) 1999-08-12
EP0933046A3 (fr) 2002-05-15

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