WO2001072178A1 - Vorrichtung für eine verstellung von komponenten eines stuhls - Google Patents
Vorrichtung für eine verstellung von komponenten eines stuhls Download PDFInfo
- Publication number
- WO2001072178A1 WO2001072178A1 PCT/CH2001/000169 CH0100169W WO0172178A1 WO 2001072178 A1 WO2001072178 A1 WO 2001072178A1 CH 0100169 W CH0100169 W CH 0100169W WO 0172178 A1 WO0172178 A1 WO 0172178A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- locking
- component
- latching
- guide track
- section
- Prior art date
Links
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 invention relates to a device for adjusting a component of a chair, in particular an office chair, relative to another component of the chair, the device being provided with a latching unit, by means of which one of the two components can be arranged in positions which can be changed by latching steps relative to the other component , wherein the latching unit has a guide track arranged on one of the two components, a latching element is provided on the other component, the latching element m of the guide track can be arranged in m latching positions, by means of which the positions of one component are predefined relative to the other component.
- a device for height adjustment of the backrest in this connection, in which the backrest, which is adjustable relative to a seat plate, is arranged on a fixed support element.
- the carrier element comprises a guide part oriented in the vertical direction and approximately U-shaped in the profile cross section, a guide part arranged therein Grid rail and a slide rail slidably guided in the guide part and a spring element which can be brought into engagement therewith.
- the spring element has two contact arms which can be brought into engagement with the two oppositely arranged toothings of the raster rail, which engage when the backrest is raised due to the spring-elastic restoring force in any position in the toothing. With this device, the backrest can still be adjusted upwards from the respective position.
- the object of the invention is therefore to improve a device of the type mentioned at the outset in such a way that a functionally reliable latching operation of two components of a chair, in particular a backrest relative to a seat body, can be created with relatively simple structural means.
- the guide track is essentially groove-shaped, at least in the region of the latching positions, and the latching element is guided in the groove-shaped guide track. Since the locking element itself does not have to be subjected to force, but should be positively guided due to the course of the guideway, a particularly functionally reliable guidance of components of a chair is possible. Unlike the WO-A 98/09553, in addition, devices according to the invention only require a latching element. The reduction to less movable components has a positive effect on the functional reliability of the device and requires a compact arrangement and simple assembly.
- the groove of the guide track has a width which allows only a slight play of the latching element with respect to directions transverse to the course of the guide track.
- the groove should therefore be at least in the area of the locking section only slightly wider than a width of the locking element.
- Relativlysungs ⁇ chtung between the locking element and the guideway essentially only one degree of freedom, namely the possibility of movement for relative movements of the locking element m of the guideway in the direction of the course of the guideway.
- the latching element can thus be guided essentially in a form-fitting manner, as a result of which a permanently secure guidance can be achieved in a structurally particularly simple manner.
- the latching element can be designed as a pivotable lever which has a latching pin which is arranged in the guide track.
- the swivel mounting allows the latching element to be guided in the guide track in a structurally particularly simple and functionally reliable manner and thus to generate a relative movement between the latching element and the guide track element.
- the device according to the invention for adjusting the height of a backrest Office chair is used.
- the device according to the invention it is also possible to use the device according to the invention to make other chair components adjustable, for example an armrest of a chair in relation to the seat surface. Further examples are a seat depth adjustment of the backrest in relation to the seat surface or a seat height adjustment in relation to a foot of the chair.
- Fig.l shown in a schematic view
- FIG. 2 shows the backrest unit with the backrest support and the backrest shown in the arrow direction X m view shown in FIG.
- FIG. 3 shows the line III-III shown in FIG. 2 in a top view and in section, the backrest unit;
- FIG. 4 shows the backrest unit shown in section along line IV-IV in FIG. 3;
- FIG. 5 shows a section along the line VV in Figure 4 with, for example, on the backrest support arranged locking unit for the hone adjustment of the backrest.
- Fig.l shows a cal atic view chair, in particular an office chair 10 adjustable in a manner not shown with regard to the height and inclination.
- the office chair 10 has, for example, a base frame 15 provided with a plurality of support arms 11 and rollers 12 mounted thereon, with a central column 14 and therein arranged gas pressure spring 13.
- a first supporting body 20 which is operatively connected to the gas pressure spring 13 and which is designed in the form of a cantilever shape to a knee side of the chair.
- a second supporting body 19 arranged on the first supporting body 20 and a backrest unit arranged thereon and denoted as a whole by 75.
- the second support body 19 is mounted on the first support body by means of a rotary / slide bearing 20 '.
- the bearing blocks 16 and 17 serve to receive and fasten a schematically illustrated seat body 18 by means of rotary bearings 16 'and 17' arranged on the knee and backrest side, through which a pivot axis is formed in each case.
- the seat body 18, the first support body 20, the second support body 19 and the backrest unit 75 arranged on the latter can thus be pivoted relative to one another, as a result of which different inclinations of the seat body 18 and the backrest unit 75 can be reached.
- the Fig.l schematically shown backrest unit 75 comprises
- REPLACEMENT SHEET RULE 26 a backrest support 30 arranged and fastened on the second supporting body 19 and a backrest 25 arranged thereon.
- the backrest 25 can be adjusted in steps by means of a correspondingly designed latching unit 35, for example starting from a first basic position shown in FIG. 1, m latched steps relative to the seat body 18 in the arrow direction H and in accordance with the arrow direction H ′ in a straight line over the entire adjustment path the basic position is traceable.
- a correspondingly designed latching unit 35 for example starting from a first basic position shown in FIG. 1, m latched steps relative to the seat body 18 in the arrow direction H and in accordance with the arrow direction H ′ in a straight line over the entire adjustment path the basic position is traceable.
- the backrest 25 is gradually guided from an upper position in rasterized steps in the direction of the arrow H 'in the direction of the seat body 18 and straight from the lower position in the direction of the arrow H to the upper position is traceable.
- FIG. 2 shows the backrest unit in a view according to the direction of the arrow X drawn in FIG. 1.
- the backrest support 30 arranged on the second supporting body 19, which has an upper one. Part of an approximately pocket-shaped recess 24 of the backrest 25 is arranged.
- the backrest 25 is in engagement with the locking unit 35 arranged in the backrest support 30 and m of the backrest 25 and shown schematically in FIGS. 1 and 2 in such a way that by lifting the backrest 25, this m arrow direction H relative to the seat body 18 gradually adjustable and can be returned in the direction of the arrow H 'from an upper to a lower end position.
- line III-III shown in FIG. 2 shows an exemplary embodiment of the jerk plane ne t 75 in section and in plan view.
- the Jerklennenemneit 75 with the individual elements 25, 30, 35 and 50 is explained in more detail below.
- the backrest 25 comprises a back wall 23 and an end wall 22 arranged at a distance from it.
- the end wall 22 is divided into two parts 22 'and 22 "to form the pocket-shaped recess 24.
- the parts 22' and 22" are connected to the rear wall 23 in the region of the recess 24 by means of integrally formed walls 21 and 21 '.
- the recess 24 arranged on the end face 22 of the backrest 25 is open towards the bottom of the seat 18 hm and serves to receive the support part 50 and the backrest support 30 partially arranged therein.
- the backrest support 30, which is approximately U-shaped in profile cross-section, has an end wall 31 and legs 26 and 26 'arranged laterally thereon.
- a substantially straight groove 27 and 27' is provided which is delimited by first webs 28, 28 'and second webs 2S, 29' which are arranged parallel to one another.
- the supporting part 50 shown in FIG. 3 in the profile cross section and arranged in the recess 24 of the pucking lane 25 comprises a plate 51 which is provided on one side with a plurality of ribs 52 which are arranged at a distance from one another and are connected to the backrest 25. At the two opposite ends of the plate 51 is in each case
- a groove 55 for a web 32 of the backrest support 30 is provided on the plate 51 of the support part 50 on the side facing the inside of the end wall 31 between two webs 54 and 54 '.
- the backrest 25 m is slowly guided along the grooves 27, 27', 55 of its direction of adjustment.
- the guide track element 35 'e is integrally formed approximately in its center and on its side facing the backrest support 30.
- a lever arm 45 is arranged on the backrest support 30 opposite the guide track element 35 ′ as a latching element and has an axle body 46 at one end and a latching pin 47 at the other end.
- the lever arm 45 is freely pivotable with the axle body 46 about its (imaginary) axis Y (see also FIG. 4)
- the backrest unit 75 is shown in section according to FIG. 3 in the area of the recess 24, line IV-IV.
- the pivot lever 45 mounted on the backrest support 30 with the axle body 46, which engages with the locking pin 47 in a groove-shaped guide track 40.
- SHEET RULE 26 5 shows the guideway element 35 ′ closer to the section line VV in FIG. 4, schematic view, which is arranged on the wall 51 of the supporting part 50 in the exemplary embodiment shown. Furthermore, FIG. 5 shows the pivot lever 45 mounted on the axle body 46 with the latching pin 47 arranged thereon, which is arranged in a latching stop 44.2 of the guide ban 40.
- the arrows 1 and 2 and the "dash-dot" lines also schematically show the movement sequence of the locking pin 47 caused by the height adjustment of the backrest 25.
- the guideway element 35 ' is laterally delimited by first webs 33 and 33' (FIG. 3) and at the upper and lower ends by second webs 34 and 34 '(FIG. 4). Furthermore, the guideway element 35 'is provided with the self-contained groove-shaped guideway 40.
- the guide track 40 has a latching section 41 'and a return section 41' 'which are connected to one another at their upper and lower ends by likewise groove-shaped deflection tracks 42 and 48 to form a self-contained track. Except for the return section 42, the width of the guide track 40 is only slightly larger than the diameter of the locking pin.
- the pivotable lever arm (45) of the latching element is considerably shorter than the longitudinal extension of the return section (41 ′′).
- the latching section 41 'and the return section 41'' are arranged at a distance from one another and are functionally separated from one another by an intermediate piece 36 oriented parallel to the longitudinal extent of the two sections 41' and 41 ''.
- the latching section 41 'of the groove-shaped funnel track 40 is provided on the side facing the web 33' with a plurality of latching stops 44, 44.1-44.5 which are arranged at a distance from one another and which are connected to one another by a plurality of groove-shaped, double-curved cam tracks.
- the latching section 41 comprises the nmtereinanoer arranged in the longitudinal course of the latching section and 44; 44.1; 44.2; 44.3; 44.4 and 44.5 designated detent stops and the connecting these and 43; 43.1; 43.2; 43.3 and
- Each cam track 43, 43.1-43.5 has a projection 39, 39.1-39.4 formed on the web 33 'and inclined in the direction of adjustment. Between the respective latching stop 44, 44.1-44.5 and the respective projection 39, 39.1-39.4, the latching pin executes a curved relative movement oriented m clockwise relative to the guide track element 35 'in the guide track 40. Each segment of the latching section 41 'corresponding to a latching step has between a projection and the respective next latching stop 44.1.
- each deflecting cam is inclined like a ramp to the adjustment direction H hm.
- the lever 45 thus pivots in two opposite directions during a latching step.
- the detent pin 47 is initially at a movement h to the next detent stop one side of the line 60 along which the pivot axis Y moves during an adjustment movement of the backrest 25. Because of a projection 39, 39.1-39.4 of a segment of the latching section 41 ', the latching pin 47 is then pivoted to the other side of the line 60 by a pivoting movement about the axis Y. The approximately S-shaped course of each segment then leads to an opposite pivoting movement of the locking pin 47 back to the original side of the line 60.
- the backrest has assumed a further position, which has been adjusted upwards by one click.
- this position in which the locking pin is fixed in a shoulder cutout formed by the projection 39, 39.1 - 39.4 in the locking stop 44, 44.1 - 44.5, the backrest remains on the locking pin 47 due to its own weight.
- a lower locking position (specified by locking stop 44) and an upper locking position (specified by locking stop 44.5) of the backrest are defined.
- the locking pin can be transferred again via the deflection section 48, the return section 41 ′′ and the further deflection section 42 to the beginning of the locking section 41 ′, namely the locking stop 44 (arrow 2). During this movement, the backrest is shifted from its upper locking position to its lower locking position.
- the guide track element 35 'described above in connection with the individual figures and the arrangement thereof on a backrest or on a backrest support is not limited to the exemplary embodiments shown and described. Further expedient configurations and arrangements are also possible without leaving the basic idea of the invention.
Landscapes
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Chairs Characterized By Structure (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001570145A JP2003527911A (ja) | 2000-03-29 | 2001-03-19 | 椅子を調整するための装置 |
AU2001240400A AU2001240400A1 (en) | 2000-03-29 | 2001-03-19 | Device for adjusting the components of a chair |
US10/240,160 US20050017560A1 (en) | 2000-03-29 | 2001-03-19 | Device for adjusting the components of a chair |
AT01911318T ATE282347T1 (de) | 2000-03-29 | 2001-03-19 | Vorrichtung für eine verstellung von komponenten eines stuhls |
EP01911318A EP1267669B1 (de) | 2000-03-29 | 2001-03-19 | Vorrichtung für eine verstellung von komponenten eines stuhls |
BRPI0109634-6A BR0109634B1 (pt) | 2000-03-29 | 2001-03-19 | dispositivo para ajustar os componentes de uma cadeira. |
DE50104544T DE50104544D1 (de) | 2000-03-29 | 2001-03-19 | Vorrichtung für eine verstellung von komponenten eines stuhls |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH602/00 | 2000-03-29 | ||
CH00602/00A CH696482A5 (de) | 2000-03-29 | 2000-03-29 | Vorrichtung für eine Verstellung von einer ersten Komponente eines Stuhls gegenüber einer zweiten Komponente eines Stuhls. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001072178A1 true WO2001072178A1 (de) | 2001-10-04 |
Family
ID=4522816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2001/000169 WO2001072178A1 (de) | 2000-03-29 | 2001-03-19 | Vorrichtung für eine verstellung von komponenten eines stuhls |
Country Status (12)
Country | Link |
---|---|
US (1) | US20050017560A1 (de) |
EP (1) | EP1267669B1 (de) |
JP (1) | JP2003527911A (de) |
AT (1) | ATE282347T1 (de) |
AU (1) | AU2001240400A1 (de) |
BR (1) | BR0109634B1 (de) |
CH (1) | CH696482A5 (de) |
DE (1) | DE50104544D1 (de) |
ES (1) | ES2233609T3 (de) |
PT (1) | PT1267669E (de) |
TW (1) | TW557736U (de) |
WO (1) | WO2001072178A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2005861A1 (de) * | 2007-06-20 | 2008-12-24 | Steelcase Sa | System zur Höhenverstellung der Rückenlehne eines Stuhls |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0807684D0 (en) * | 2008-04-28 | 2008-06-04 | Specmat Ltd | Seat |
US10034548B2 (en) | 2009-01-23 | 2018-07-31 | Backjoy Orthotics, Llc | Apparatus and system for dynamically correcting posture |
US8696534B2 (en) * | 2009-06-19 | 2014-04-15 | Sihar Ahmad Karwan | Total abs office chair |
US8579376B2 (en) * | 2011-02-01 | 2013-11-12 | Ching-Ming Chen | Device for adjusting the height of the backrest of an office chair |
JP5859265B2 (ja) * | 2011-10-05 | 2016-02-10 | 日本発條株式会社 | 車両用シート |
EP2759230B1 (de) * | 2013-01-23 | 2015-09-30 | L & P Property Management Company | Mechanismus zum Einstellen einer Stuhllehne und Stuhl |
TWI609654B (zh) * | 2013-05-28 | 2018-01-01 | 限制裝置 | |
GB2529661B (en) * | 2014-08-28 | 2017-11-15 | Wu Yao-Chuan | Modified back rack |
TWM543007U (zh) * | 2017-02-22 | 2017-06-11 | Xin-Hua Chen | 椅背結構 |
KR101967201B1 (ko) * | 2018-08-31 | 2019-04-09 | 주식회사 다원체어스 | 요추받이부 굴곡조절모듈이 구비된 의자 |
KR102366832B1 (ko) * | 2021-08-23 | 2022-02-24 | 주식회사 다원체어스 | 의자의 등판 높이 조절기구 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191309457A (en) * | 1912-09-09 | 1914-01-08 | William Ernest King | An Improved Adjustable Movement for Raising or Lowering Heads and Backs of Couches, Settees, and Easy Chairs. |
DE352463C (de) * | 1919-11-12 | 1922-04-27 | Hans Ponndorf | Vorrichtung zum Feststellen anhebbarer Kopf- oder Rueckenstuetzen an Liegestuehlen und aehnlichen Moebeln |
US5597204A (en) * | 1995-08-04 | 1997-01-28 | Herman Miller, Inc. | Height adjustment device |
US5695249A (en) * | 1996-06-24 | 1997-12-09 | Lotfi; Mehdian | Height adjustment mechanism for chair components |
WO1998009553A1 (en) | 1996-09-06 | 1998-03-12 | Imarc S.P.A. | Device for adjusting the height of the back-rest of a seat back portion, in particular in office chairs |
WO2000053058A1 (en) * | 1999-03-09 | 2000-09-14 | Imarc S.P.A. | Height adjustement device, particularly for the seat back portion and arm-rests in office chairs |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US979149A (en) * | 1906-04-05 | 1910-12-20 | Edgar A Gay | Furniture attachment. |
GB2246287B (en) * | 1990-06-12 | 1993-10-20 | Unit Press Limited | Back support pillar for a chair |
JP3921257B2 (ja) * | 1996-05-28 | 2007-05-30 | タカノ株式会社 | 椅子の背もたれ高さ調節装置 |
TW400709U (en) * | 1999-08-19 | 2000-08-01 | Tay Huah Furniture Corp | Chair back height adjusting device |
US6209961B1 (en) * | 2000-04-04 | 2001-04-03 | Su-Jan Chen | Level-adjustable and swivelable armrest assembly |
US6709059B1 (en) * | 2000-07-27 | 2004-03-23 | Sava Cvek | Adjustable non-biased positioning mechanism |
US6343840B1 (en) * | 2001-05-18 | 2002-02-05 | Yi Chun Enterprise Ltd. | Height adjustment mechanism for chair backrest or arm |
-
2000
- 2000-03-29 CH CH00602/00A patent/CH696482A5/de not_active IP Right Cessation
-
2001
- 2001-03-19 EP EP01911318A patent/EP1267669B1/de not_active Expired - Lifetime
- 2001-03-19 AT AT01911318T patent/ATE282347T1/de not_active IP Right Cessation
- 2001-03-19 ES ES01911318T patent/ES2233609T3/es not_active Expired - Lifetime
- 2001-03-19 PT PT01911318T patent/PT1267669E/pt unknown
- 2001-03-19 BR BRPI0109634-6A patent/BR0109634B1/pt not_active IP Right Cessation
- 2001-03-19 US US10/240,160 patent/US20050017560A1/en not_active Abandoned
- 2001-03-19 AU AU2001240400A patent/AU2001240400A1/en not_active Abandoned
- 2001-03-19 JP JP2001570145A patent/JP2003527911A/ja active Pending
- 2001-03-19 WO PCT/CH2001/000169 patent/WO2001072178A1/de active IP Right Grant
- 2001-03-19 DE DE50104544T patent/DE50104544D1/de not_active Expired - Lifetime
- 2001-03-28 TW TW091213893U patent/TW557736U/zh unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191309457A (en) * | 1912-09-09 | 1914-01-08 | William Ernest King | An Improved Adjustable Movement for Raising or Lowering Heads and Backs of Couches, Settees, and Easy Chairs. |
DE352463C (de) * | 1919-11-12 | 1922-04-27 | Hans Ponndorf | Vorrichtung zum Feststellen anhebbarer Kopf- oder Rueckenstuetzen an Liegestuehlen und aehnlichen Moebeln |
US5597204A (en) * | 1995-08-04 | 1997-01-28 | Herman Miller, Inc. | Height adjustment device |
US5695249A (en) * | 1996-06-24 | 1997-12-09 | Lotfi; Mehdian | Height adjustment mechanism for chair components |
WO1998009553A1 (en) | 1996-09-06 | 1998-03-12 | Imarc S.P.A. | Device for adjusting the height of the back-rest of a seat back portion, in particular in office chairs |
WO2000053058A1 (en) * | 1999-03-09 | 2000-09-14 | Imarc S.P.A. | Height adjustement device, particularly for the seat back portion and arm-rests in office chairs |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2005861A1 (de) * | 2007-06-20 | 2008-12-24 | Steelcase Sa | System zur Höhenverstellung der Rückenlehne eines Stuhls |
Also Published As
Publication number | Publication date |
---|---|
BR0109634A (pt) | 2003-04-22 |
CH696482A5 (de) | 2007-07-13 |
ES2233609T3 (es) | 2005-06-16 |
DE50104544D1 (de) | 2004-12-23 |
JP2003527911A (ja) | 2003-09-24 |
ATE282347T1 (de) | 2004-12-15 |
AU2001240400A1 (en) | 2001-10-08 |
PT1267669E (pt) | 2005-04-29 |
EP1267669A1 (de) | 2003-01-02 |
EP1267669B1 (de) | 2004-11-17 |
TW557736U (en) | 2003-10-11 |
BR0109634B1 (pt) | 2010-08-24 |
US20050017560A1 (en) | 2005-01-27 |
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