EP1698256A1 - Siège, notamment chaise de bureau - Google Patents

Siège, notamment chaise de bureau Download PDF

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Publication number
EP1698256A1
EP1698256A1 EP06004195A EP06004195A EP1698256A1 EP 1698256 A1 EP1698256 A1 EP 1698256A1 EP 06004195 A EP06004195 A EP 06004195A EP 06004195 A EP06004195 A EP 06004195A EP 1698256 A1 EP1698256 A1 EP 1698256A1
Authority
EP
European Patent Office
Prior art keywords
backrest
guide
backrest support
height adjustment
functional elements
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
EP06004195A
Other languages
German (de)
English (en)
Other versions
EP1698256B1 (fr
Inventor
Hermann Bock
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.)
Bock 1 GmbH and Co KG
Original Assignee
Bock 1 GmbH and Co KG
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 Bock 1 GmbH and Co KG filed Critical Bock 1 GmbH and Co KG
Publication of EP1698256A1 publication Critical patent/EP1698256A1/fr
Application granted granted Critical
Publication of EP1698256B1 publication Critical patent/EP1698256B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/402—Support for the head or the back for the back adjustable in height

Definitions

  • the present invention relates to a chair, in particular an office chair, with a height-adjustable backrest.
  • An object of the present invention is to provide a height adjustment for a chair with comparatively simple structural means, which also allows a visually appealing design of the chair.
  • the seat according to the invention comprises a backrest in which two side struts of a frame are connected together by a clip, wherein the backrest is connected via this clip height adjustable with a backrest support.
  • a basic idea of the invention is that both the connection of the backrest to the backrest support and the height adjustment mechanism outside the actual Provide backrest.
  • the backrest itself can thus be designed freely as desired, without additional space for the height adjustment mechanism must be provided. This makes it possible to design visually appealing backrests.
  • connection of the backrest to the backrest support takes place exclusively via the clasp.
  • no further holding, support or fastening elements are required for providing the backrest in its use position.
  • structurally comparatively simple fasteners can be used. Since the height adjustment mechanism is separated from the backrest, it is finally easier for the user to access, which significantly simplifies their handling.
  • the backrest is designed as a so-called mesh back, so that a particularly delicate look can be achieved.
  • the present invention is particularly advantageous if no cushioning elements are provided, in which the connection of the backrest to the backrest support or the height adjustment mechanism can be accommodated. Previous mesh backs are always firmly connected to the backrest support, without a height adjustment would be possible. With the present invention For the first time, a height-adjustable mesh back is provided.
  • the functional elements simultaneously required for the height adjustment and the mechanical connection of the backrest to the backrest support are advantageously provided both in the clasp and in the backrest support.
  • By dividing the required functional elements on both components of each space required there is reduced to a minimum.
  • the arranged in the clasp first functional elements are combined in an adapter block, which is attached as a separate component on the clasp or integrated in the clasp.
  • the functional elements are concentrated in a small space, resulting in a very compact design.
  • the second functional elements interacting with the first functional elements are also preferably integrated in the backrest support, so that it can have a particularly slim design. It is essential that all functional elements are outsourced from the actual backrest.
  • the clip is connected to the backrest support via a guide. Grasping it provided on the clasp guide elements in the side surfaces of the backrest support, so the connection of the backrest to the backrest support can be performed optically unobtrusive.
  • the leadership of the clasp designed as a play-free linear sliding guide it is with a relatively small design effort a clean, Tolerance-compensated and low-wear guidance guaranteed.
  • the height adjustment takes place by means of a slotted guide.
  • a slotted guide This allows a particularly precise height adjustment. If a number of adjustment positions defined by the slotted guide, in addition a height adjustment of the backrest in several stages and thus particularly user-friendly ergonomic aspects is possible in a particularly simple manner.
  • a backrest 1 of an office chair is shown in different perspectives.
  • the frame is constructed of a number of frame segments 2, the two side struts 3, 4 and an upper Cross strut 5 and a lower cross member 6 form, so that there is a substantially rectangular basic shape for the frame.
  • fasteners 7 are provided for attachment of the mesh fabric.
  • the two side struts 3, 4 are additionally interconnected in the lower frame half by a in the use position of the chair extending substantially in the horizontal direction 8 clip 9. This is connected by fasteners not shown with the side struts 3, 4.
  • the clasp 9 may also be designed as a component integrally connected to the corresponding frame segments 2.
  • the clasp 9 has in the center an adapter block 10 with further described below in detail first functional elements. These first functional elements cooperate with second functional elements, which are arranged on a backrest support 12 extending substantially in the vertical direction 11 in the useful position of the chair, and whose function will also be explained below.
  • the first and second functional elements ensure both the mechanical connection of the backrest 1 to the backrest support 12 and the height adjustment of the backrest 1 in the vertical direction 11.
  • the backrest 1 is shown in its lower use position. From this it can be transferred via a number of intermediate stages in an upper use position. As will be described in detail below, the height adjustment of the backrest 1 is done solely by moving the backrest 1 in the vertical direction 11 up or down. An unlocking button or the like does not have to be operated. It is sufficient to grab the backrest 1, for example, on the clasp 9 and to lead up or down.
  • FIGS. 1 and 3 are not shown in FIGS. 1 and 3 .
  • This can serve to cover the first functional elements arranged there. In addition to protection of the functional elements from contamination, the cover then also fulfills the function of a screen.
  • the adapter block 10 When adjusting the height of the backrest 1, the adapter block 10 can be moved to the backrest support 12 up to the upwardly facing free end 13.
  • the free end 13 of the opposite end of the backrest support 12 runs in an approximately L-shaped forward in the direction of the non-pictured seat of the office chair in two mutually parallel retaining cheeks 14, see. Fig. 3.
  • the retaining cheeks 14 are provided with fastening elements 15 for mounting on a synchronizing mechanism of an office chair or the like.
  • the provided on the clasp 9 first functional elements are arranged on the rear side 16 of the adapter block 10, which faces away from the backrest 1.
  • the first functional elements point toward the front 17 of the backrest support 12. They are preferably made of a plastic material and as well as the majority of the other components, such as frame segments 2, clasp 9, etc. produced in an injection molding process.
  • the first functional elements comprise in detail a linear sliding guide 18 and a slide guide 19, cf. Fig. 4.
  • the linear sliding guide 18 comprises four guide elements 20, 21, 22, 23 for guiding the backrest 1 am Backrest support 12.
  • the guide elements are arranged in pairs on both sides of the approximately centrally arranged on the adapter block 10 and substantially vertically extending link guide 19.
  • the arranged on one side of the slide guide 19 guide elements are formed as a substantially rectangular guide lugs 20, 21 which extend in the form of lobes out of the surface of the adapter block 10 in the direction slide guide 19.
  • the arranged on the opposite side of the slide guide 19 guide elements are formed as a hollow cylinder 22, 23 and consist of an elastic material.
  • the hollow cylinder 22, 23 are attached with their openings 24 to corresponding holding cylinder 25, which extend perpendicular to the plane of the adapter block 10 out.
  • To the hollow cylinder 22, 23 around limiting blocks 26 are also provided, which include the hollow cylinder 22, 23 almost fully. Only on the slide guide 19 facing side of the boundary blocks 26 recesses 27 are provided, through which the hollow cylinder 22, 23 extend in the direction of slide guide 19, wherein the lateral surfaces are exposed in this area. The exposed areas also serve as the actual engagement members of these guide elements.
  • both the two guide lugs 20, 21 and the two exposed areas of the hollow cylinders 22, 23 engage in two correspondingly formed guide grooves 28 on the backrest support 12.
  • the dimensions of the guide lugs 20, 21 and the hollow cylinder 22, 23 are selected in view of the width of the guide grooves 28 so that they almost in these free play.
  • the mounting position of the backrest support 12 according to FIG. 1 is indicated in FIG. 4 by broken lines 29.
  • a height adjustment using the slotted guide 19 is ensured by the elastic yielding and rolling the hollow cylinder 22, 23 a clean management of the adapter block 10 to the backrest support 12.
  • the guide 28 are introduced laterally in the main body of the backrest support 12, so extend in the intermediate region between the front 17 and back 30.
  • the guide 28 close to the free end 13 of the backrest support 12 and are made open at the top, so that the mounting of the adapter block 10 or the backrest 1 can be done by simply inserting the guide elements 20, 21, 22, 23 of the adapter block 10 in the guide grooves 28.
  • the projecting in Fig. 5 from the plane, provided for engagement in the slide guide 19 guide pin 31 is mounted in a sliding block 32 which deflected in a provided on the front 17 of the backrest support 12, forwardly open guide channel 33 on a substantially horizontal guide track can be.
  • the guide channel 33 is limited at its two ends in each case by a guide rail 34 which is screwed onto the front side 17 of the backrest support 12 and serves as a guide surface for the adapter block 10 in the mounted state.
  • the guide pin 31 is designed as a steel pin or the like.
  • the sliding block 32 is forced by a connected to the sliding block 32 spring 35 forcibly in its normal position, ie held approximately centrally in the guide channel 33. However, it can be deflected in the transverse direction against the spring force of the spring 35, as indicated by arrows 36.
  • the made of spring wire or the like spring 35 extends from the sliding block 32 in a franking 36 in the main body of the backrest support 12 to its mounting point 37, in which they run with their L-shaped tail in a plane perpendicular to the plane, in the main body of the backrest support 12 protruding hole (not shown) is mounted.
  • the spring 35 is again fixed in a tong-like taper 38 of the franking 36, so that the spring 35 receives an additional clamping and can be dispensed with a further attachment, for example in the form of a screw connection.
  • the link guide 19 provided on the adapter block 10 is formed in two parts, with a first link track 39 extending in a straight line in the vertical direction 11 and ending at the bottom 40 of the adapter block 10 in an insertion opening 41.
  • a further slide track 42 is provided which extends substantially parallel to the first slide track 39.
  • This second slide track 42 is formed in a waveform such that a number of rest positions 43 results for the sliding in the sliding guide 42 guide pin 31, which define different adjustment positions of the backrest 1.
  • the rest positions 43 are on the imaginary center line 44 of the adapter block 10.
  • Both slide tracks 39, 42 are connected to each other such that the guide pin 31 can change from a slide track in the other slide track.
  • the change is, however always possible only at the upper or lower tail, so that a so-called "no-touch system” results.
  • This is designed in the embodiment shown here such that a height adjustment of the backrest 1 upwards over the provided with rest positions 43 slide track 42 is possible, while at an adjustment of the backrest 1 down no intermediate positions are possible.
  • the backrest 1 when a lower backrest position is to be adjusted, first to the highest use position and beyond to be moved, so that the guide pin 31 can change from the upwardly leading slide track 42 in the downwardly leading slide track 39.
  • the backrest 1 can be moved to its lower use position, from where it can be brought up again in the desired adjustment position.
  • the upper rest position 43 'and the lower rest position 43 "three further rest positions 43 are provided for the guide pin 31 in the example shown, which define the intermediate positions.
  • the guide pin 31 When mounting the backrest 1 and backrest support 12 of the guide pin 31 is inserted into the insertion opening 41 of the slide guide 19.
  • the guide pin 31 lies in its lower rest position 43 ", ie at the upper connection point between the first and the second slide track 39, 42 in the slotted guide 19 Backrest 1, the guide pin 31 is forcibly guided downward in the slide track 42 provided with rest positions 43, wherein the corresponding transverse movement of the guide pin 31 by the spring-loaded guide of the sliding block 32 in the guide channel 33 of the backrest support 12 takes place.
  • the movement of the guide pin takes place in other words according to the arrow directions 45.

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)
EP20060004195 2005-03-04 2006-03-02 Siège, notamment chaise de bureau Expired - Fee Related EP1698256B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510010533 DE102005010533A1 (de) 2005-03-04 2005-03-04 Sitzmöbel, insbesondere Bürostuhl

Publications (2)

Publication Number Publication Date
EP1698256A1 true EP1698256A1 (fr) 2006-09-06
EP1698256B1 EP1698256B1 (fr) 2008-09-24

Family

ID=36581712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060004195 Expired - Fee Related EP1698256B1 (fr) 2005-03-04 2006-03-02 Siège, notamment chaise de bureau

Country Status (2)

Country Link
EP (1) EP1698256B1 (fr)
DE (2) DE102005010533A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2005861A1 (fr) 2007-06-20 2008-12-24 Steelcase Sa Système de réglage en hauteur d'un dossier d'un siège
CN106235729A (zh) * 2016-08-29 2016-12-21 苏州奥米多家具股份有限公司 一种家用多功能休闲椅

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2599301A (en) * 1951-05-07 1952-06-03 Sturgis Posture Chair Company Posture chair
EP0278651A1 (fr) * 1987-02-06 1988-08-17 Mt Designs Chaise à accoudoirs escamotables
EP0970639A1 (fr) * 1998-07-07 2000-01-12 Provenda Marketing Ag Support lombaire réglable
US6158810A (en) * 1998-11-17 2000-12-12 Galloway; Robert Chair back tilt apparatus
US20030062756A1 (en) * 2001-10-02 2003-04-03 Martin Ballendat Back of chair

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4639039A (en) * 1985-09-10 1987-01-27 Milsco Manufacturing Company Height adjustment mechanism for chair backrest
DE19533070C2 (de) * 1995-09-07 1997-07-10 Heitlinger Karl Leo Stuhl
DE10048779A1 (de) * 2000-09-29 2002-04-18 Stoll Sedus Ag Rückenlehne

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2599301A (en) * 1951-05-07 1952-06-03 Sturgis Posture Chair Company Posture chair
EP0278651A1 (fr) * 1987-02-06 1988-08-17 Mt Designs Chaise à accoudoirs escamotables
EP0970639A1 (fr) * 1998-07-07 2000-01-12 Provenda Marketing Ag Support lombaire réglable
US6158810A (en) * 1998-11-17 2000-12-12 Galloway; Robert Chair back tilt apparatus
US20030062756A1 (en) * 2001-10-02 2003-04-03 Martin Ballendat Back of chair

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2005861A1 (fr) 2007-06-20 2008-12-24 Steelcase Sa Système de réglage en hauteur d'un dossier d'un siège
CN106235729A (zh) * 2016-08-29 2016-12-21 苏州奥米多家具股份有限公司 一种家用多功能休闲椅

Also Published As

Publication number Publication date
EP1698256B1 (fr) 2008-09-24
DE102005010533A1 (de) 2006-09-07
DE502006001618D1 (de) 2008-11-06

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