CA2573792A1 - Chair - Google Patents
Chair Download PDFInfo
- Publication number
- CA2573792A1 CA2573792A1 CA002573792A CA2573792A CA2573792A1 CA 2573792 A1 CA2573792 A1 CA 2573792A1 CA 002573792 A CA002573792 A CA 002573792A CA 2573792 A CA2573792 A CA 2573792A CA 2573792 A1 CA2573792 A1 CA 2573792A1
- Authority
- CA
- Canada
- Prior art keywords
- seat portion
- chair
- support means
- locking
- sleeve
- 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.)
- Abandoned
Links
- 230000015572 biosynthetic process Effects 0.000 claims description 19
- 238000005755 formation reaction Methods 0.000 claims description 19
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/20—Chairs or stools with vertically-adjustable seats
- A47C3/34—Chairs or stools with vertically-adjustable seats with pins coacting with holes or bolt-and-nut adjustment
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
- Chairs Characterized By Structure (AREA)
Abstract
A chair comprises a seat portion for enabling a user to sit on the chair and support means for supporting the seat portion. The seat portion is movable between a plurality of different height positions on the support means, and includes locking means adapted for engagement with and disengagement from the support means at each height position, by rocking the seat portion relative to the support means, wherein the seat portion is locked relative to the support means when the locking means is in the engaged position and free to move relative to the support means between different height positions when the locking means is disengaged.
Description
Chair The present invention relates to a chair or other such object for supporting a user in a seated position.
In recent years, there has been an increasing emphasis placed on the ergonomics of fiin7iture, in particular for use in office and school environments. For example, it is common for office fiuniture such as chairs to be adapted for users having different height requirements.
It is an obj ect of the invention to provide an improved chair, which can be adapted for users having different height requirements.
According to the present invention, there is provided a chair comprising a seat portion for enabl'u1g a user to sit on the chair; support means for supporting the seat portion;
characterised in that the seat portion is movable between a plurality of different height positions on the support means, and in which the seat portion includes locking means adapted for engagement with and disengagement from the support means at eachheightposition, byrockingthe seat portion relative to the support means, wherein the seat portion is loclced relative to the support means when the locking means is in the engaged position and free to move relative to the support means between different height positions when the locking means is disengaged.
Preferably, the support means includes a plurality of locating formations spaced apart from one another, the locating fonnations conesponding generallyto the different height positioiis for the seat portion on the support means and being adapted to co-operate with the locldng means for locking the seat portion at a selected height position.
Preferably, in which the seat portion includes sleeve means adapted for receiving aportion of the support means for enabling the seat portion to be raised or lowered on said portion ofthe support means.
Conveniently, the sleeve means are configured forrocking movement relative to said portion ofthe support means.
Preferably, the loclcing means are provided on the sleeve means, and may be arranged for movement witli the sleeve means.
Preferably, the locking means comprises pin means.
In apreferred embodiment, the support means defines apair of legs, each leg including aplurality of spaced apart apertures along apportion of the leg, the position of the apertures generally corresponding to the different height positions for the seat portion on the supportmeans and being adapted to co-operate with the locking means for locking the seat portion at a selected height position.
Conveniently, apair of sleeve formations is provided spaced apart from one another on the seat portion, with the legs of the support means arranged to extend through the respective sleeve formations.
Preferably, the seat portion is arranged between the sleeve formations.
Preferably, the support means is generally S-shaped when viewed from the side, and may be adapted for nestling with a plurality of said support means.
Otherpreferred features ofthe inventionwill be readily apparent from the following description and the dependent claims.
The iuivention will now be described, byway of example only, with reference to the accompanying drawings, in which:
In recent years, there has been an increasing emphasis placed on the ergonomics of fiin7iture, in particular for use in office and school environments. For example, it is common for office fiuniture such as chairs to be adapted for users having different height requirements.
It is an obj ect of the invention to provide an improved chair, which can be adapted for users having different height requirements.
According to the present invention, there is provided a chair comprising a seat portion for enabl'u1g a user to sit on the chair; support means for supporting the seat portion;
characterised in that the seat portion is movable between a plurality of different height positions on the support means, and in which the seat portion includes locking means adapted for engagement with and disengagement from the support means at eachheightposition, byrockingthe seat portion relative to the support means, wherein the seat portion is loclced relative to the support means when the locking means is in the engaged position and free to move relative to the support means between different height positions when the locking means is disengaged.
Preferably, the support means includes a plurality of locating formations spaced apart from one another, the locating fonnations conesponding generallyto the different height positioiis for the seat portion on the support means and being adapted to co-operate with the locldng means for locking the seat portion at a selected height position.
Preferably, in which the seat portion includes sleeve means adapted for receiving aportion of the support means for enabling the seat portion to be raised or lowered on said portion ofthe support means.
Conveniently, the sleeve means are configured forrocking movement relative to said portion ofthe support means.
Preferably, the loclcing means are provided on the sleeve means, and may be arranged for movement witli the sleeve means.
Preferably, the locking means comprises pin means.
In apreferred embodiment, the support means defines apair of legs, each leg including aplurality of spaced apart apertures along apportion of the leg, the position of the apertures generally corresponding to the different height positions for the seat portion on the supportmeans and being adapted to co-operate with the locking means for locking the seat portion at a selected height position.
Conveniently, apair of sleeve formations is provided spaced apart from one another on the seat portion, with the legs of the support means arranged to extend through the respective sleeve formations.
Preferably, the seat portion is arranged between the sleeve formations.
Preferably, the support means is generally S-shaped when viewed from the side, and may be adapted for nestling with a plurality of said support means.
Otherpreferred features ofthe inventionwill be readily apparent from the following description and the dependent claims.
The iuivention will now be described, byway of example only, with reference to the accompanying drawings, in which:
2
3 PCT/GB2005/002765 Figure 1 is a schematic perspective view showing a preferred embodiment of chair in accordance with the present invention;
Figure 2 is a schematic front view of the chair shown in Figure 1;
Figure 3 is a schematic side view of a chair similar to the chair sllown in Figures 1 and 2;
Figure 4 is an exploded part cross-sectional view ofthe area encircled in Figure 3, showing the seat portion in an engaged condition; and Figure 5 is a view similar to Figure 4, sllowing the seat portion in a disengaged condition.
Referring to Figures 1 and 2, a chair according to a preferred embodiment of the invention is indicated generally at 10. The chair 10 includes a seat portion 12 for supporting a user (not shown) in a seatedposition, the seatportion 12 being received on a support means in the form of tubular fra.ine, indicated at 14.
Sleeve-type formations 16 are provided on either side of the seat portion 12, as can be seen in Figure 2, either formed integrallywith the remainder ofthe seat portion 12 or attached thereto. The tubular frasne 14 defines abase 17 and a pair of legs 18. The chair 10 is configured such that the seat portion 12 can be received on the fratne 14, with the upper ends of the legs 18 extending up through the sleeve formations 16. hi this embodiment, stabiliser means 19 are provided at the base 17 of the frame 14, which add stability to the chair 10 when placed on a planar surface such as a floor or the like.
As can be seen clearly in Figure 2, with the seat portion 12 in place on the frame 14, the seat portion is effectively suspended between the legs 18 via the sleeve formations 16.
Loolking now at Figure 3, a chair virtually identical to that shown in Figures 1 and 2, but differing slightly in relatively iminaterial aspects of the aesthetic appearance of the seat portion, is also indicated at 10. Other similar components are also given the same reference numerals used with respect to Figures 1 and 2.
As with the chair shown in Figures 1 and 2, the tubular frame 14 is curved so as to be of generally S-shaped when viewed from the side. Together with the positioning of the seat portion 12 between the legs 18, the cuived configuration of the legs 18 enables the chair 10 to be easily nestled with correspondingly shaped articles, for example with a plurality of identical chairs 10.
As will be described in more detail below, the seat portion 12 is movable between different height positions relative to the frame 14.
Referring to Figures 4 and 5, the internal configuration of one of the sleeve formations 16 and its relationship with one of the fraine legs 18 is clearly illustrated.
The sleeve formation 16 includes a substantially conical shafl having a bore 20 defining an effective front surface 22 and an effective rear surface 24. A locking pin 26 is provided adj acent the lower end of the front surface 22. The locking pin 26 is rigidly connected to the sleeve formation 16 for movement therewith.
As can be seen, apertures 28 are provided in a spaced apart relationship along an upperportion of each leg 18, four of which are shown in Figures 4 and 5. Each aperture 28 is configured for receiving the locking pin 26 on the sleeve fonnation 16. Each aperture 28 is aligned with a similarly positioned aperture on the other leg 18, so as to define aplurality of different height positions on the frame 14, wherein the position of seat portion 12 can be raised or lowered on the frame 14.
In Figure 4, the locldng pin 26 is shown in engagement with the lowermost aperture 28A in the leg 18, so tliat the seat portion 12 is securelyheld under the action of the locldng pins 26 on the sleeve formations 16 on either side of the seat portion 12 at that height on the frame 14. As can be seen,
Figure 2 is a schematic front view of the chair shown in Figure 1;
Figure 3 is a schematic side view of a chair similar to the chair sllown in Figures 1 and 2;
Figure 4 is an exploded part cross-sectional view ofthe area encircled in Figure 3, showing the seat portion in an engaged condition; and Figure 5 is a view similar to Figure 4, sllowing the seat portion in a disengaged condition.
Referring to Figures 1 and 2, a chair according to a preferred embodiment of the invention is indicated generally at 10. The chair 10 includes a seat portion 12 for supporting a user (not shown) in a seatedposition, the seatportion 12 being received on a support means in the form of tubular fra.ine, indicated at 14.
Sleeve-type formations 16 are provided on either side of the seat portion 12, as can be seen in Figure 2, either formed integrallywith the remainder ofthe seat portion 12 or attached thereto. The tubular frasne 14 defines abase 17 and a pair of legs 18. The chair 10 is configured such that the seat portion 12 can be received on the fratne 14, with the upper ends of the legs 18 extending up through the sleeve formations 16. hi this embodiment, stabiliser means 19 are provided at the base 17 of the frame 14, which add stability to the chair 10 when placed on a planar surface such as a floor or the like.
As can be seen clearly in Figure 2, with the seat portion 12 in place on the frame 14, the seat portion is effectively suspended between the legs 18 via the sleeve formations 16.
Loolking now at Figure 3, a chair virtually identical to that shown in Figures 1 and 2, but differing slightly in relatively iminaterial aspects of the aesthetic appearance of the seat portion, is also indicated at 10. Other similar components are also given the same reference numerals used with respect to Figures 1 and 2.
As with the chair shown in Figures 1 and 2, the tubular frame 14 is curved so as to be of generally S-shaped when viewed from the side. Together with the positioning of the seat portion 12 between the legs 18, the cuived configuration of the legs 18 enables the chair 10 to be easily nestled with correspondingly shaped articles, for example with a plurality of identical chairs 10.
As will be described in more detail below, the seat portion 12 is movable between different height positions relative to the frame 14.
Referring to Figures 4 and 5, the internal configuration of one of the sleeve formations 16 and its relationship with one of the fraine legs 18 is clearly illustrated.
The sleeve formation 16 includes a substantially conical shafl having a bore 20 defining an effective front surface 22 and an effective rear surface 24. A locking pin 26 is provided adj acent the lower end of the front surface 22. The locking pin 26 is rigidly connected to the sleeve formation 16 for movement therewith.
As can be seen, apertures 28 are provided in a spaced apart relationship along an upperportion of each leg 18, four of which are shown in Figures 4 and 5. Each aperture 28 is configured for receiving the locking pin 26 on the sleeve fonnation 16. Each aperture 28 is aligned with a similarly positioned aperture on the other leg 18, so as to define aplurality of different height positions on the frame 14, wherein the position of seat portion 12 can be raised or lowered on the frame 14.
In Figure 4, the locldng pin 26 is shown in engagement with the lowermost aperture 28A in the leg 18, so tliat the seat portion 12 is securelyheld under the action of the locldng pins 26 on the sleeve formations 16 on either side of the seat portion 12 at that height on the frame 14. As can be seen,
4 the front of the leg 16 is generally in abutment with the front surface 22 of the bore 20. The upper region of the rear surface 24 also includes an inclined portion, indicated at 30, and the rear leg 16 is generally in abutment with the transition between the rear surface 24 and the inclined surface 3 0.
In this engaged position, a user can sit on the seat portion 12 ofthe chair 10. The sleeve formations 16 and seat portion 12 are arranged so that, with a user sat on the seat portion 12, the direction of the load on the chair 10 acts to impart a rotational force on the lower end of the sleeve formation 16, anti-clockwise as sllown in Figure 4, therebybiasing the locking pin 26 ulto the aperture 28A.
It will be appreciated that this action transmits a similar rotational force to the upperportion ofthe leg 18, bringing it furtller into contact with front surface 22 of the sleeve bore 20. This rotational effect acts to securably hold the seat portion 12 in the chosen height position on the frame 14.
If a userwishes to raise the seat portion 12 to a different height position, the usermust first liftthe front end of the seat portionl2, indicated at 32 in Figure 3, tlzereby rotating the seat portion 12 clockwise as viewed inFigure 3, until the lockingpins 26 are disengaged from the apertures 28A, as shown in Figure 5. The seat portion 12 can thenbe moved upwards along the upper portion of the legs 18.
To re-locate the seat portion 12 in a loclced position on the frame 14, the front 32 of the seat portion 12 is rotated anti-cloclcwise as viewed in Figure 3, towards the legs 18, to engage the locking pins 26 in tlie apertures 28 at the desired heightposition, substantially as described above with respect to Figure 4.
The above described forward and b ackward rotational movement of the front portion of tlie chair 10 essentially causes a rocking movement ofthe lower end of the sleeve formations 16 and the locking pins 26. Hence, it will be understood that the seat portion 12 is arranged for rocking engageinent with the frame 14, via the locking pins 26, at each height position, for selectively locking the seat portion 12 at a desired height position.
In this engaged position, a user can sit on the seat portion 12 ofthe chair 10. The sleeve formations 16 and seat portion 12 are arranged so that, with a user sat on the seat portion 12, the direction of the load on the chair 10 acts to impart a rotational force on the lower end of the sleeve formation 16, anti-clockwise as sllown in Figure 4, therebybiasing the locking pin 26 ulto the aperture 28A.
It will be appreciated that this action transmits a similar rotational force to the upperportion ofthe leg 18, bringing it furtller into contact with front surface 22 of the sleeve bore 20. This rotational effect acts to securably hold the seat portion 12 in the chosen height position on the frame 14.
If a userwishes to raise the seat portion 12 to a different height position, the usermust first liftthe front end of the seat portionl2, indicated at 32 in Figure 3, tlzereby rotating the seat portion 12 clockwise as viewed inFigure 3, until the lockingpins 26 are disengaged from the apertures 28A, as shown in Figure 5. The seat portion 12 can thenbe moved upwards along the upper portion of the legs 18.
To re-locate the seat portion 12 in a loclced position on the frame 14, the front 32 of the seat portion 12 is rotated anti-cloclcwise as viewed in Figure 3, towards the legs 18, to engage the locking pins 26 in tlie apertures 28 at the desired heightposition, substantially as described above with respect to Figure 4.
The above described forward and b ackward rotational movement of the front portion of tlie chair 10 essentially causes a rocking movement ofthe lower end of the sleeve formations 16 and the locking pins 26. Hence, it will be understood that the seat portion 12 is arranged for rocking engageinent with the frame 14, via the locking pins 26, at each height position, for selectively locking the seat portion 12 at a desired height position.
5
Claims (13)
1. A chair comprising:
a seat portion for enabling a user to sit on the chair;
support means for supporting the seat portion;
in which the seat portion is movable between a plurality of different height positions on the support means, characterised in that the seat portion includes locking means adapted for engagement with and disengagement from the support means at each height position, by rocking the seat portion relative to the support means, wherein the seat portion is locked relative to the support means when the locking means is in the engaged position and free to move relative to the support means between different height positions when the locking means is disengaged.
a seat portion for enabling a user to sit on the chair;
support means for supporting the seat portion;
in which the seat portion is movable between a plurality of different height positions on the support means, characterised in that the seat portion includes locking means adapted for engagement with and disengagement from the support means at each height position, by rocking the seat portion relative to the support means, wherein the seat portion is locked relative to the support means when the locking means is in the engaged position and free to move relative to the support means between different height positions when the locking means is disengaged.
2. A chair as claimed in claim 1, in which the support means includes a plurality of locating formations spaced apart from one another, the locating formations corresponding generally to the different height positions for the seat portion on the support means and being adapted to co-operate with the locking means for locking the seat portion at a selected height position.
3. A chair as claimed in claim 1 or claim 2, in which the seat portion includes sleeve means adapted for receiving a portion of the support means for enabling the seat portion to be raised or lowered on said portion of the support means.
4. A chair as claimed in claim 3, in which the sleeve means are configured for rocking movement relative to said portion of the support means.
6 A chair as claimed in claim 3 or claim 4, in which the locking means are provided on the sleeve means.
6. A chair as claimed m claim 5, m which the locking means are arranged for movement with the sleeve means.
7 A chair as claimed m any preceding claim, in which the locking means comprises pin means.
8. A chair as claimed in any preceding claim, in which the support means defines a pair of legs, each leg including a plurality of spaced apart apertures along apportion of the leg, the position of the apertures generally corresponding to the different height positions for the seat portion on the support means and being adapted to co-operate with the locking means for locking the seat portion at a selected height position.
9. A chair as claimed in claim 8,in which a pair of sleeve formations is provided spaced apart from one another on the seat portion, with the legs of the support means arranged to extend through the respective sleeve formations.
10. A chair as claimed in claim 9, in which the seat portion is arranged between the sleeve formations.
11. A chair as claimed in any preceding claim, in which the support means is generally S-shaped when viewed from the side.
12. A chair as claimed in any preceding claim, in which the support means is adapted for nestling with a plurality of said support means.
13. A chair as hereinbefore described and as illustrated in any of Figures 1 to 5.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0415805.1 | 2004-07-15 | ||
| GBGB0415805.1A GB0415805D0 (en) | 2004-07-15 | 2004-07-15 | Chair |
| PCT/GB2005/002765 WO2006008473A1 (en) | 2004-07-15 | 2005-07-14 | Chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2573792A1 true CA2573792A1 (en) | 2006-01-26 |
Family
ID=32893585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002573792A Abandoned CA2573792A1 (en) | 2004-07-15 | 2005-07-14 | Chair |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20080136238A1 (en) |
| EP (1) | EP1778052A1 (en) |
| JP (1) | JP2008506438A (en) |
| AU (1) | AU2005263919A1 (en) |
| CA (1) | CA2573792A1 (en) |
| GB (1) | GB0415805D0 (en) |
| WO (1) | WO2006008473A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9775759B2 (en) * | 2014-01-14 | 2017-10-03 | Acuity Ophthalmics, Llc | Chair for use with ophthalmic instruments |
| USD867778S1 (en) * | 2017-10-17 | 2019-11-26 | TON a.s. | Chair (leaf) |
| USD904054S1 (en) * | 2017-11-30 | 2020-12-08 | Norix Group, Inc. | Modern furniture |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2637371A (en) * | 1950-07-13 | 1953-05-05 | Harold S Boutin | Chair having resilient frame |
| US3697130A (en) * | 1971-04-20 | 1972-10-10 | American Seating Co | Connector assembly for chairs |
| DE2618292C3 (en) * | 1976-04-27 | 1978-10-05 | Fa. Heinrich Wilhelm Dreyer, 4515 Bad Essen | Standing work seat |
| DE9214190U1 (en) * | 1992-10-21 | 1992-12-10 | Stecher, Roland, Götzis | Chair |
| DE19733785A1 (en) * | 1997-08-05 | 1999-02-11 | Loh Kg Hailo Werk | chair |
| DE29720990U1 (en) * | 1997-11-27 | 1998-02-05 | Nehring, Werner, 22419 Hamburg | Backrest grid chair with adjustable seat plate |
| DE10142081A1 (en) * | 2001-08-30 | 2003-03-20 | Pius Ponticelli | chair |
| US6752460B2 (en) * | 2002-09-20 | 2004-06-22 | Moll System- und Funktionsmöbel GmbH | Chair |
| US7234777B2 (en) * | 2004-03-16 | 2007-06-26 | Kimball International, Inc. | Chair with adjustable armrests and backrest |
-
2004
- 2004-07-15 GB GBGB0415805.1A patent/GB0415805D0/en not_active Ceased
-
2005
- 2005-07-14 CA CA002573792A patent/CA2573792A1/en not_active Abandoned
- 2005-07-14 WO PCT/GB2005/002765 patent/WO2006008473A1/en active Application Filing
- 2005-07-14 US US11/632,579 patent/US20080136238A1/en not_active Abandoned
- 2005-07-14 JP JP2007520893A patent/JP2008506438A/en active Pending
- 2005-07-14 AU AU2005263919A patent/AU2005263919A1/en not_active Abandoned
- 2005-07-14 EP EP05759711A patent/EP1778052A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006008473A1 (en) | 2006-01-26 |
| US20080136238A1 (en) | 2008-06-12 |
| JP2008506438A (en) | 2008-03-06 |
| GB0415805D0 (en) | 2004-08-18 |
| AU2005263919A1 (en) | 2006-01-26 |
| EP1778052A1 (en) | 2007-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |