DE19714546A1 - Chair, especially office chair - Google Patents

Chair, especially office chair

Info

Publication number
DE19714546A1
DE19714546A1 DE1997114546 DE19714546A DE19714546A1 DE 19714546 A1 DE19714546 A1 DE 19714546A1 DE 1997114546 DE1997114546 DE 1997114546 DE 19714546 A DE19714546 A DE 19714546A DE 19714546 A1 DE19714546 A1 DE 19714546A1
Authority
DE
Germany
Prior art keywords
chair
seat
support
seat 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Withdrawn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
DE1997114546
Other languages
German (de)
Inventor
Klaus Lackner
Roland Schmidt
Original Assignee
Klaus Lackner
Roland Schmidt
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 Klaus Lackner, Roland Schmidt filed Critical Klaus Lackner
Priority to DE1997114546 priority Critical patent/DE19714546A1/en
Publication of DE19714546A1 publication Critical patent/DE19714546A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C1/00Chairs adapted for special purposes
    • A47C1/02Reclining or easy chairs
    • A47C1/031Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03255Reclining 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
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C1/00Chairs adapted for special purposes
    • A47C1/02Reclining or easy chairs
    • A47C1/031Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03266Reclining 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
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C1/00Chairs adapted for special purposes
    • A47C1/02Reclining or easy chairs
    • A47C1/031Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03277Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs

Description

The invention relates to a chair, in particular an office chair, with a seat that can be tilted towards the horizontal carrier and one in sync with the inclination of the seat carrier adjustable backrest support.

With the synchronous adjustment of the seat and backrest a chair is approached from an ergonomic point of view make sure that the front edge of the seat at the tilting movement backward position remains as unchanged as possible and that the angle between the backrest and seat enlarged when leaning back. To satisfy this Requirements already have different mechanisms been beaten, but all of them a relatively high con require structural effort.

The present invention has for its object a Chair with a synchronous adjustment mechanism of the seat and to create the backrest that is less constructive than the solutions known since then.  

The task is carried out with a chair of the type mentioned at the beginning solved according to the invention in that the seat support and Backrest support from an ela, at least in some areas Tically resilient component are formed and the seat support an essentially U-shaped area of the component consists of one of the legs of the U-shaped seat support is arranged on a chair column. By the one-piece Aus formation of seat support and backrest support are eliminated assembly work required for conventional chairs. Of the Entire chair consists of a few individual components that are quick can be assembled. Due to the U-shaped design of the seat wearer receives the necessary flexibility. Expedient the legs of the U-shaped seat support are in their end region with each other via a connecting element couples. The connecting element can be elastic, so that an unimpeded but controlled transmission of the movement of the Seat support on the backrest support is possible. The before derkante of the base of the chair forming the seat of the U-shaped seat support can advantageously be flexible forms and on a guide connected to the chair column be guided. This is a lowering of the seat possible to the rear without changing the height of the front edge The seat changes, causing an uncomfortable pressure on the Would lead the user's legs in the area of the hollow of the knees. In addition to the resilient mounting, the leg of the U-shaped Ver seat support also limited to a horizontal axis be pivotally arranged on the chair column. It is possible to limit the seat support and the backrest support to be pivoted forward on the chair column to support the Back of the user even when the arm is bent forward good support for posture. The inclination of the seat support and the backrest support can also be locked be put. To the chair according to the invention on people to be able to adapt to different body weights Devices for body weight-dependent adjustment of the  Sensitivity of the synchronous adjustment on the backrest and Seat support can be arranged. For example, the Stiffness of the leg of the Seat carrier by means of a slidable along the leg Sleeve can be adjusted depending on body weight. By diff ben the sleeve is the bending zone of the leg in length varies and thus the stiffness of the leg is adjusted. The chair can also lock the tilt of the seat and backrest support. Also the The depth of the seat can be adjusted.

A preferred embodiment of a Chair according to the invention with reference to the drawing tert.

Show it:

Fig. 1 is a schematic side view of a chair according to the invention;

Fig. 2 is an enlarged detail view of the seat support and the backrest support of Figure 1 in two different inclination positions.

Fig. 3 is a side view of the chair of Figure 1 in the two inclined end positions of the backrest and the seat support.

Fig. 4 is a detailed view of the seat support of the chair of Figure 1 with an element for body weight-dependent sensitivity setting in a first position.

Fig. 5 is a view corresponding to Figure 4 with the adjusting element in a second position.

Fig. 6 is an enlarged detail view of the seat support of the chair with a seat depth adjustment device.

The chair 10 of FIG. 1 has a backrest support 11, which is integrally formed with a seat support 12. The component 13 forming the backrest support 11 and the seat support 12 is bent in a U-shape in the region of the seat support 12 . One leg 14 of the U-shaped seat support 12 is connected via a bearing 15 to a chair column 16 which is arranged in a cross-adjustable height 17 in a foot. The leg 14 of the U-shaped seat support 12 is elastically connected to the second leg 18 via a connecting element 19 . In the area of the front edge of the chair 10 , the seat support 12 has a flexible zone 20 . In this area, the seat support 12 is guided on an arcuate guideway 21 which is connected to the chair column 16 . This ensures that the height of the front edge of the chair 10 is not changed when the inclination of the seat support 12 is adjusted. In the example shown, the leg 14 of the seat support 12 is mounted on a lockable axis 22 on the chair column 16 , which also allows the seat support 12 to pivot forward. The two most extreme inclination positions of the chair 10 are shown in FIG. 3. The seat support 12 can be lowered by an angle α below the horizontal 30 and raised by a angle β relative to the horizontal 30 . In the shown in Fig. 3 by solid lines maximum Absen of the seat support ken 12 12 forms the seat carrier with the backrest carrier 11 at an angle δ which is larger than the angle γ between the seat carrier 12 and the Rückenlehnenträ ger 11 in the rest position of the seat carrier 12, as Fig. 2 illustrates light. The front edge 20 of the chair 10 does not change its height when the seat support 12 is lowered below the horizontal 30 . The various inclination positions of the seat and backrest support can be arrested by means of a clamping device 31 . To adjust the necessary adjustment force of the synchronous adjustment depending on the body weight of the user of the chair, the leg 14 of the U-shaped seat support 12 is provided with a sleeve 23 which is slidable along the legs 14 ( Fig. 4, 5). If the sleeve 23 , as shown in Fig. 4, pushed as far back as possible, then it keeps the bending area 24 of the leg 14 from its greatest expansion. The synchronous adjustment requires only little effort. If the sleeve 23 , as shown in Fig. 5, pushed forward, the bending area 24 is reduced accordingly, whereby an adjustment of the synchronous mechanism is only possible with a relatively large amount of force. The body weight-dependent adjustment of the synchronous adjustment with the sleeve 23 represents a structurally simple and easy-to-use solution. Of course, the sleeve 23 can also be locked. Fig. 6 shows a seat support 12 with a possibility for seat depth adjustment. Due to the flexible portion 20 at the front edge of the seat base 12, the depth of the seat support 12 can by example tele skopartige extension of the guide track 21 by a maximum of d increase the amount.

Claims (10)

1. Chair, in particular office chair, with a horizontal ( 30 ) inclinable seat support ( 12 ) and a synchronously to the inclination of the seat support ( 12 ) in its inclination adjustable backrest support ( 11 ), characterized in that the seat support ( 12 ) and the backrest support ( 11 ) is formed from an at least partially elastic elastic component ( 13 ) and the seat support ( 12 ) consists of an essentially U-shaped area of the component ( 13 ), one of the legs ( 14 ) of the U-shaped seat support ( 12 ) on a chair column ( 16 ) is arranged.
2. Chair according to claim 1, characterized in that the legs ( 14 , 18 ) of the U-shaped seat support ( 12 ) are coupled to one another in their end region via a connecting element ( 19 ).
3. Chair according to claim 1 or 2, characterized in that the front edge ( 20 ) of the seat of the chair ( 10 ) forming the base of the U-shaped seat support ( 12 ) is flexible and on a with the chair column ( 16 ) connected NEN guideway ( 21 ) is performed.
4. Chair according to one of claims 1 to 3, characterized in that the seat support ( 12 ) and the backrest support ( 11 ) are arranged to the front of the chair column ( 16 ) pivotally limited.
5. Chair according to claim 4, characterized in that the leg ( 14 ) of the U-shaped seat support ( 12 ) about a horizontal axis is pivotally arranged on the chair column ( 16 ).
6. Chair according to one of claims 1 to 5, characterized in that devices ( 23 ) for body weight-dependent adjustment of the sensitivity of the synchronous adjustment of the backrest ( 11 ) and seat support ( 12 ) are provided.
7. Chair according to claim 6, characterized in that the stiffness of the chair column ( 16 ) arranged thighs ( 14 ) of the seat support ( 12 ) by means of a along the leg ( 14 ) displaceable sleeve ( 23 ) body weight is adjustable depending.
8. Chair according to one of claims 1 to 7, characterized in that the component ( 13 ) for the seat support ( 12 ) and the backrest support ( 11 ) consists of plastic.
9. Chair according to one of claims 1 to 8, characterized records that he has devices for locking the inclination of the seat and backrest support.
10. Chair according to one of claims 1 to 9, characterized records that the depth of the seat is adjustable.
DE1997114546 1997-04-09 1997-04-09 Chair, especially office chair Withdrawn DE19714546A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1997114546 DE19714546A1 (en) 1997-04-09 1997-04-09 Chair, especially office chair

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997114546 DE19714546A1 (en) 1997-04-09 1997-04-09 Chair, especially office chair
EP98105157A EP0870443A3 (en) 1997-04-09 1998-03-21 Chair, particularly office-chair

Publications (1)

Publication Number Publication Date
DE19714546A1 true DE19714546A1 (en) 1998-10-15

Family

ID=7825835

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1997114546 Withdrawn DE19714546A1 (en) 1997-04-09 1997-04-09 Chair, especially office chair

Country Status (2)

Country Link
EP (1) EP0870443A3 (en)
DE (1) DE19714546A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20000076A1 (en) * 2000-03-31 2001-10-01 Cazzaro Spa Structure chair
DE10106792A1 (en) * 2001-02-12 2002-08-14 Interstuhl Bueromoebel Gmbh seating

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3642796A1 (en) * 1986-12-15 1988-06-23 Eckhard Hansen Point synchronous adjustment device for office chairs, seat furniture or the like
US4790596A (en) * 1987-06-26 1988-12-13 Shifferaw Tessema D Resilient chair
US4889385A (en) * 1988-03-09 1989-12-26 American Seating Company Chair seat-and-back support
DE4410383C2 (en) * 1994-03-25 1996-07-25 Desanta chair

Also Published As

Publication number Publication date
EP0870443A3 (en) 2000-02-23
EP0870443A2 (en) 1998-10-14

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee