CA1076944A - Chair - Google Patents
ChairInfo
- Publication number
- CA1076944A CA1076944A CA284,886A CA284886A CA1076944A CA 1076944 A CA1076944 A CA 1076944A CA 284886 A CA284886 A CA 284886A CA 1076944 A CA1076944 A CA 1076944A
- Authority
- CA
- Canada
- Prior art keywords
- seat
- supporting structure
- chair
- further characterized
- chair according
- 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.)
- Expired
Links
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
- A47C3/02—Rocking chairs
- A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
-
- 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
- A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
- A47C7/443—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with coil springs
- A47C7/444—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with coil springs of torsion type
Abstract
TITLE - CHAIR
ABSTRACT OF THE DISCLOSURE
The seat of a chair is mounted on a seat-supporting structure of the chair frame by means of closely spaced, parallel sleeves which extend lengthwise on the underside of the seat and which are received in telescoping and sliding relation by seat supports which are parts of a generally centrally located seat supporting structure of the chair frame. The front portion of the seat supporting structure is supported in cantilevered relation by the chair legs or pedestal. The chair back is mounted on a generally centrally located back support of the chair frame to tilt backward independently of the position of the seat from a resiliently restrained, relatively upright position to a backward, tilted position.
ABSTRACT OF THE DISCLOSURE
The seat of a chair is mounted on a seat-supporting structure of the chair frame by means of closely spaced, parallel sleeves which extend lengthwise on the underside of the seat and which are received in telescoping and sliding relation by seat supports which are parts of a generally centrally located seat supporting structure of the chair frame. The front portion of the seat supporting structure is supported in cantilevered relation by the chair legs or pedestal. The chair back is mounted on a generally centrally located back support of the chair frame to tilt backward independently of the position of the seat from a resiliently restrained, relatively upright position to a backward, tilted position.
Description
BACXGROUND O~ THE INVE~ITION
This invention relates to chairs having significa~tly greater comfort than conventional chairs in a wide variety of sitting postures assumed by the user, yet providing these functional features by way of unique and less costly structures. More particularly, the invention concerns chairs having a seat which is movable back and forth and a back which is mounted so that it pivots, independently of the movement of the seat, between upright and inclined positions, A substantial improvement in the comfort of chairs over chairs with fixed geometry may be afforded by the chair described above insofar as it allows the user to assume various sitting postures and the chair will conform thereto.
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~07694~
In chairs in which the seat has little or no padding, further comfort may be afforded where the seat supports of the seat supporting structure and the sleeves are made upwardly concavely arcuate (i.e., curved about a center of curvature located some distance vertically above the coincident axes of the respective sleeves and seat supports) so that the rake of the seat increases, the farther forward it is on the supports. In chair seats that are relatively heavily padded, the seat supports and sleeves need not be curved, inasmuch as the padding will provide comfortable support to a person sitting in the chair in all ~ositions of forward and backward movement, even though the shifting of the seat to a more forward position, as the person leans back to a relaxed position in the chair, requires the imposition by the seat to the person of a greater horizontal force component so that the person does not have the feeling that he will slide off the seat.
Heavy padding provides the necessary change in geometry that is present when curved sleeves and supports are used i~ lightly padded or unpadded seats.
The present invention provides an improved or modified form of the chair described in Canadian Application Serial No. 241,721 filed December 15, 1975.
The chair of that prior application has either legs or a pedestal, a frame mounted on the legs or pedestal, and a seat and a back mounted separately on the frame and is characterized in that the seat has a pair of spaced-apart elongated sleeves of uniform internal cross-section extending lengthwise in parallel vertical planes and is mounted on ,
This invention relates to chairs having significa~tly greater comfort than conventional chairs in a wide variety of sitting postures assumed by the user, yet providing these functional features by way of unique and less costly structures. More particularly, the invention concerns chairs having a seat which is movable back and forth and a back which is mounted so that it pivots, independently of the movement of the seat, between upright and inclined positions, A substantial improvement in the comfort of chairs over chairs with fixed geometry may be afforded by the chair described above insofar as it allows the user to assume various sitting postures and the chair will conform thereto.
. .
, ~ ' .
' ~' ' ' ~ ' ' ,' ~
,: . .:,~, . ' . . ~.
~ " ''' '' ' ': ~' ' ' ~
~07694~
In chairs in which the seat has little or no padding, further comfort may be afforded where the seat supports of the seat supporting structure and the sleeves are made upwardly concavely arcuate (i.e., curved about a center of curvature located some distance vertically above the coincident axes of the respective sleeves and seat supports) so that the rake of the seat increases, the farther forward it is on the supports. In chair seats that are relatively heavily padded, the seat supports and sleeves need not be curved, inasmuch as the padding will provide comfortable support to a person sitting in the chair in all ~ositions of forward and backward movement, even though the shifting of the seat to a more forward position, as the person leans back to a relaxed position in the chair, requires the imposition by the seat to the person of a greater horizontal force component so that the person does not have the feeling that he will slide off the seat.
Heavy padding provides the necessary change in geometry that is present when curved sleeves and supports are used i~ lightly padded or unpadded seats.
The present invention provides an improved or modified form of the chair described in Canadian Application Serial No. 241,721 filed December 15, 1975.
The chair of that prior application has either legs or a pedestal, a frame mounted on the legs or pedestal, and a seat and a back mounted separately on the frame and is characterized in that the seat has a pair of spaced-apart elongated sleeves of uniform internal cross-section extending lengthwise in parallel vertical planes and is mounted on ,
- 2 -'.B .
, , i 22538A
.
10769~4 spaced-apart lengthwise forwardly extending cantilevered seat supports, preferably tubular members, of uniform external cross-section substantially matching the internal cross-section of the sleeves. The seat supports receive the sie_ves in telescoping and slidi~g relation such that the seat is slidable backward and forward. The back is mounted on back supports of the chair frame to tilt backward independently of the position of the seat from a resiliently restrained relatively upright position to a backward tilted position.
SUMMARY OF THE INVENTION
The present invention comprises a chair having either legs or a pedestal, a frame mounted on the legs or ~edestal, and a seat and a back mounted separately on the frame and is characterized in that the seat has on its under-side a pair of closely spaced-apart elongated sleeves of uniform internal cross-section extending lengthwise in parallel vertical planes and is mounted on a generally centrally located seat-supporting structure, which seat-supporting structure has a lengthwise fonwardly extending cantilevered portion and closely spaced-apart seat supports of uniform external cross-section substantially matching the internal cross-section of the sleeves, the sleeves of the seat being received in telescoping and sliding relation on the seat supports of the seat supporting structure such that the seat is slidable backward and fonYard, and in that the back is mounted on a generally centrally located back support of the chair frame to tilt backward independently of the position of the seat from a resiliently restrained relatively upright position to a backward tilted position.
~ - 3 -Other features and advantages of the present invention will be readily apparent from the following detailed description of a preferred embodiment thereof taken in conjunction with the accompanying drawings.
DESCRIPTION OF THE DRAWINGS
Figs. 1 and 2 are side elevational and front elevational views of a chair according to the present invention;
Fig. 3 is a side cross-sectional view of the seat supporting structure of the chair of Figs. 1 and 2;
Fig. 4 is a top cross-sectional view of the seat supporting structure taken generally along the lines 23-23 of Fig. 3 and in the direction of the arrows;
Figs.5 to 9 are cross-sectional views taken at the locations indicated by the lines 24-24, 25-25, 26-26, 27-27 ; and 28-28, respectively, of Fig. 3 and in the direction of the arrows;
Fig. 10 is a side cross-sectional view of the back of the chair of Figs. 1 and 2 taken generally along the lines 29-29 of Fig. 2 and in the direction of the arrows; and Fig. 11 is a fragmentary, cross-sectional view of the back mounting structure taken along the lines 30-30 of Fig. 10 and in the direction of the arrows.
DETAILED DESCRIPTION
In the illustrated embodiment of the invention, a chair, as shown in Figs. 1 to 11, has a five-legged pedestal base 400 that supports at the height of a chair `B
? . i F22538A
.
1~69~4 seat a generally "L"-shaped (as viewed from the side) frame assembly 402. The frame assembly in~ludes a tubular piece 404 of generally rectangular cross-section bent to provide a ge~erally vertical leg 406 that supports the back 408 of the chair and a generally horizontal leg 4io that receives telescopically a tongue 412 (Figs. 3 and 4) that extends rearwardly from a seat supporting structure 414.
Referring to Figs. 3 to 9, the seat supporting structure 414 comprises a main body portion 416 that extends '~
lengthwise of the chair and has a dependent boss 418 that receives the post 420 of the pedestal base 400 (Figs. 3 and 6).
The seat supporting structure 414 has extending longitudinally along each side and projecting outwardly a pair of laterally spaced-apart flanges forming seat supports 422, each of which receives an elongated, generally cup-shaped anti-friction bearing element 424, for example, an element made of "Teflon"
or nylon. The seat supports 422 are received in telescoping relation within a pair of laterally spaced-apart sleeves 426 that extend lengthwise under the chair seat 428, the sleeves being defined by a mounting unit 43Q which is fastened, such as by screws 432 ~Fig. 9), to bosses 434 molded on the under-side of the seat 428. The mounting unit 430 is assembled, such as by rivets 436 (Fig. 8), from a plate 438 which abuts the underside of the seat 428 and a pair of elongated members 440 of genPrally "Zn-shaped cross-section. The sleeves 426 defined by the plate 438 and the members 440 receive telescopicall the seat supports 4~2 with a clearance adequate to permit the seat to slide relatively freely backward and forward on the seat supports.
~ Trademark , i F22538A
~a7694~
.
The seat 428 is spring-loaded toward the rearwardmost position (the position shown in Figs. 3 to 9J
by a coil spring 442 connected under tension between a pin 444 that extends up into a cavity 446 formed in the body portion 416 of the seat supporting structure 414 and a pin 448 that projects down into the cavity 446 from the plate 438 of the mounting unit 430. The limit position of backward movement of the seat 428 is established by engagement of a rubber bumper 450 that is mounted on a rib 452 extending down into the cavity ~, 446 with a pair of ribs 454 on the body portion 416 of the seat supporting structure that project into the cavity 446. The forward limit position is established by engagement of the rubber bumper 450 with the front wall 456 of the body portion 416.
As best shown in Figs. 10 and 11, the back 408 of the chair of Figs. 1 to 11 is mounted on an extension 458 of the back support portion 404 by means of a coupling 460 that is received telescopically in the back support portion 404 with a clearance that permitsit to be slided up and down to adjust the height of the back 408. The back is locked at the desired height by a lock screw 462.
The extension 458 is received in a sleeve 464 molded into the back wall of the chair back 408, and the back 408 is mounted to tilt between the relatively upright position shown in Fig. 10 and an inclined position (not shown) by a pivot coupling that is provided by an axle 466 that extends through holes in the extension 458 and in the sleeve 464.
The back is spring-loaded into the relatively upright position by a torsion spring 468 of generally the mousetrap type. The '` forward or upright limit position of tilting of the back 408 is 30 t:2 ~ ..
.. ' ~7~94~ .
established by engagement between the upper part of the back face of the extension 458 and the inside face of the back wall of the sleeve 464 in the region marked by the numeral 470 and by engageme~t between the upper end of the front face of the extension 458 and the part of the back face of th~ chair back 408 adjacent thereto. The rearward or inclined limit position of the tilting of the back 408 is established by engagement of the part of the back of the chair within the sleeve 464 with the upper edges 472 of the side walls of the extension 458, which are cut at an angle to provide the desired limit of tilting of the back. The lower end of the back wall of the sleeve 464 angles away from the extension 458 to accommodate rearward tilting of the back and may engage the back wall of the extension 458, further to assist in supporting the back at the limit of inclined tilting.
The chair described above and shown in the drawings operates on the principle of independent forward and backward - movement of the seat and tilting of the back such that the chair will automatically adopt a configuration that will provide excellent anatomical support to a person sitting in the chair. The chair provides optimal distribution of body weight and excellent sacro-lumbar support in all configurations.
When a person sitting in the chair sits upright, the seat will be in the rearward position and the back in an upright position.
When the person wants to lean back into a relaxed position in the chair, the seat will slide forward and the back will incline, such adjustments in the configuration of the chair being substantially solely responsive to the sitting posture of the individual. Except in those cases when the seat is heavily padded, the increased rake of the seat play an important ~ - 7 -.
~076~44 .
.
role in supporting the body properly when the person relaxes back in the chair.
The above-described embodiment of the invention is intended to be merely exemplary and numerous variations and modifications may be made without departing from the spirit and scope of the invention. All such variations and mcd~fications are intended to be included within the scope of the invention as defined in the appended claims.
' ':
.
. ,: , , . :- -: . . , : . -
, , i 22538A
.
10769~4 spaced-apart lengthwise forwardly extending cantilevered seat supports, preferably tubular members, of uniform external cross-section substantially matching the internal cross-section of the sleeves. The seat supports receive the sie_ves in telescoping and slidi~g relation such that the seat is slidable backward and forward. The back is mounted on back supports of the chair frame to tilt backward independently of the position of the seat from a resiliently restrained relatively upright position to a backward tilted position.
SUMMARY OF THE INVENTION
The present invention comprises a chair having either legs or a pedestal, a frame mounted on the legs or ~edestal, and a seat and a back mounted separately on the frame and is characterized in that the seat has on its under-side a pair of closely spaced-apart elongated sleeves of uniform internal cross-section extending lengthwise in parallel vertical planes and is mounted on a generally centrally located seat-supporting structure, which seat-supporting structure has a lengthwise fonwardly extending cantilevered portion and closely spaced-apart seat supports of uniform external cross-section substantially matching the internal cross-section of the sleeves, the sleeves of the seat being received in telescoping and sliding relation on the seat supports of the seat supporting structure such that the seat is slidable backward and fonYard, and in that the back is mounted on a generally centrally located back support of the chair frame to tilt backward independently of the position of the seat from a resiliently restrained relatively upright position to a backward tilted position.
~ - 3 -Other features and advantages of the present invention will be readily apparent from the following detailed description of a preferred embodiment thereof taken in conjunction with the accompanying drawings.
DESCRIPTION OF THE DRAWINGS
Figs. 1 and 2 are side elevational and front elevational views of a chair according to the present invention;
Fig. 3 is a side cross-sectional view of the seat supporting structure of the chair of Figs. 1 and 2;
Fig. 4 is a top cross-sectional view of the seat supporting structure taken generally along the lines 23-23 of Fig. 3 and in the direction of the arrows;
Figs.5 to 9 are cross-sectional views taken at the locations indicated by the lines 24-24, 25-25, 26-26, 27-27 ; and 28-28, respectively, of Fig. 3 and in the direction of the arrows;
Fig. 10 is a side cross-sectional view of the back of the chair of Figs. 1 and 2 taken generally along the lines 29-29 of Fig. 2 and in the direction of the arrows; and Fig. 11 is a fragmentary, cross-sectional view of the back mounting structure taken along the lines 30-30 of Fig. 10 and in the direction of the arrows.
DETAILED DESCRIPTION
In the illustrated embodiment of the invention, a chair, as shown in Figs. 1 to 11, has a five-legged pedestal base 400 that supports at the height of a chair `B
? . i F22538A
.
1~69~4 seat a generally "L"-shaped (as viewed from the side) frame assembly 402. The frame assembly in~ludes a tubular piece 404 of generally rectangular cross-section bent to provide a ge~erally vertical leg 406 that supports the back 408 of the chair and a generally horizontal leg 4io that receives telescopically a tongue 412 (Figs. 3 and 4) that extends rearwardly from a seat supporting structure 414.
Referring to Figs. 3 to 9, the seat supporting structure 414 comprises a main body portion 416 that extends '~
lengthwise of the chair and has a dependent boss 418 that receives the post 420 of the pedestal base 400 (Figs. 3 and 6).
The seat supporting structure 414 has extending longitudinally along each side and projecting outwardly a pair of laterally spaced-apart flanges forming seat supports 422, each of which receives an elongated, generally cup-shaped anti-friction bearing element 424, for example, an element made of "Teflon"
or nylon. The seat supports 422 are received in telescoping relation within a pair of laterally spaced-apart sleeves 426 that extend lengthwise under the chair seat 428, the sleeves being defined by a mounting unit 43Q which is fastened, such as by screws 432 ~Fig. 9), to bosses 434 molded on the under-side of the seat 428. The mounting unit 430 is assembled, such as by rivets 436 (Fig. 8), from a plate 438 which abuts the underside of the seat 428 and a pair of elongated members 440 of genPrally "Zn-shaped cross-section. The sleeves 426 defined by the plate 438 and the members 440 receive telescopicall the seat supports 4~2 with a clearance adequate to permit the seat to slide relatively freely backward and forward on the seat supports.
~ Trademark , i F22538A
~a7694~
.
The seat 428 is spring-loaded toward the rearwardmost position (the position shown in Figs. 3 to 9J
by a coil spring 442 connected under tension between a pin 444 that extends up into a cavity 446 formed in the body portion 416 of the seat supporting structure 414 and a pin 448 that projects down into the cavity 446 from the plate 438 of the mounting unit 430. The limit position of backward movement of the seat 428 is established by engagement of a rubber bumper 450 that is mounted on a rib 452 extending down into the cavity ~, 446 with a pair of ribs 454 on the body portion 416 of the seat supporting structure that project into the cavity 446. The forward limit position is established by engagement of the rubber bumper 450 with the front wall 456 of the body portion 416.
As best shown in Figs. 10 and 11, the back 408 of the chair of Figs. 1 to 11 is mounted on an extension 458 of the back support portion 404 by means of a coupling 460 that is received telescopically in the back support portion 404 with a clearance that permitsit to be slided up and down to adjust the height of the back 408. The back is locked at the desired height by a lock screw 462.
The extension 458 is received in a sleeve 464 molded into the back wall of the chair back 408, and the back 408 is mounted to tilt between the relatively upright position shown in Fig. 10 and an inclined position (not shown) by a pivot coupling that is provided by an axle 466 that extends through holes in the extension 458 and in the sleeve 464.
The back is spring-loaded into the relatively upright position by a torsion spring 468 of generally the mousetrap type. The '` forward or upright limit position of tilting of the back 408 is 30 t:2 ~ ..
.. ' ~7~94~ .
established by engagement between the upper part of the back face of the extension 458 and the inside face of the back wall of the sleeve 464 in the region marked by the numeral 470 and by engageme~t between the upper end of the front face of the extension 458 and the part of the back face of th~ chair back 408 adjacent thereto. The rearward or inclined limit position of the tilting of the back 408 is established by engagement of the part of the back of the chair within the sleeve 464 with the upper edges 472 of the side walls of the extension 458, which are cut at an angle to provide the desired limit of tilting of the back. The lower end of the back wall of the sleeve 464 angles away from the extension 458 to accommodate rearward tilting of the back and may engage the back wall of the extension 458, further to assist in supporting the back at the limit of inclined tilting.
The chair described above and shown in the drawings operates on the principle of independent forward and backward - movement of the seat and tilting of the back such that the chair will automatically adopt a configuration that will provide excellent anatomical support to a person sitting in the chair. The chair provides optimal distribution of body weight and excellent sacro-lumbar support in all configurations.
When a person sitting in the chair sits upright, the seat will be in the rearward position and the back in an upright position.
When the person wants to lean back into a relaxed position in the chair, the seat will slide forward and the back will incline, such adjustments in the configuration of the chair being substantially solely responsive to the sitting posture of the individual. Except in those cases when the seat is heavily padded, the increased rake of the seat play an important ~ - 7 -.
~076~44 .
.
role in supporting the body properly when the person relaxes back in the chair.
The above-described embodiment of the invention is intended to be merely exemplary and numerous variations and modifications may be made without departing from the spirit and scope of the invention. All such variations and mcd~fications are intended to be included within the scope of the invention as defined in the appended claims.
' ':
.
. ,: , , . :- -: . . , : . -
Claims (9)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A chair having either legs or a pedestal, a frame mounted on the legs or pedestal, and a seat and a back mounted separately on the frame characterized in that the seat has on its underside adjacent the centre and remote from the sides a pair of elongated sleeves of uniform internal cross-section extending lengthwise in parallel vertical planes and is mounted on a generally centrally located seat-supporting structure, which seat-supporting structure is rigidly joined to the frame and has a lengthwise forwardly extending cantilevered portion and spaced apart seat supports of uniform external cross-section substantially matching the internal cross-section of the sleeves, the sleeves of the seat being received in telescoping and sliding relation on the seat supports of the seat-supporting structure such that the seat is slidable backward and forward, and in that the back is mounted on a generally centrally located back support of the chair frame to tilt backward independently of the position of the seat from a resiliently restrained relatively upright position to a backward tilted position.
2. A chair according to claim 1 and further characterized in that the seat supports are constituted by flanges that extend lengthwise along and generally outwardly from the sides of the seat-supporting structure.
3. A chair according to claim 1 and further characterized in that there is an upwardly open cavity in the seat-supporting structure which receives a spring and in that the spring is connected between the seat-supporting structure and the seat to urge the seat rearwardly on the seat supporting structure.
4. A chair according to claim 1 and further characterized in that there is an upwardly open cavity in the seat supporting structure and a member on the underside of the seat projecting into said cavity and engageable with front and back walls of the cavity upon forward and rearward movement, respectively, of the seat on the seat supporting structure, thereby to limit forward and rearward movement of the seat on the seat supporting structure.
5. A chair according to claim 4 and further characterized in that there is a second upwardly open cavity in the seat supporting structure located rearwardly of the aforementioned cavity, in that there is a passage between the cavities, and in that there is a spring connected between the seat and the seat supporting structure and normally received within the second cavity when the seat is in the rearward position, the spring also extending through the passage between the cavities upon extension thereof when the seat moves forward on the seat supporting structure.
6. A chair according to claim 1 and further characterized in that the back is mounted on the back support by an articulating structure having a first part secured to the upper end of the back support and a second part secured to the back.
7. A chair according to claim 6 and further characterized in that the back is mounted on the back support by means of an axle coupling the back to the back support for pivotal movement of the back.
8. A chair according to claim 7 and further characterized in that the back has a sleeve that receives the upper end of the back support and the sleeve and the back support have interengaging surfaces that limit the extent of pivotal movement of the back.
9. A chair according to claim 8 and further characterized in that there is a torsion spring associated with the axle and coacting between the back and back support to urqe the back to an upright position.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/721,164 US4084850A (en) | 1975-06-13 | 1976-09-07 | Chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1076944A true CA1076944A (en) | 1980-05-06 |
Family
ID=24896812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA284,886A Expired CA1076944A (en) | 1976-09-07 | 1977-08-17 | Chair |
Country Status (17)
| Country | Link |
|---|---|
| JP (2) | JPS5349563A (en) |
| AR (1) | AR224227A1 (en) |
| AT (1) | AT367991B (en) |
| AU (1) | AU510832B2 (en) |
| BE (1) | BE858444R (en) |
| BR (1) | BR7705953A (en) |
| CA (1) | CA1076944A (en) |
| CH (1) | CH618331A5 (en) |
| DE (1) | DE2740072A1 (en) |
| DK (1) | DK158372C (en) |
| ES (1) | ES230752Y (en) |
| FR (1) | FR2363301B2 (en) |
| GB (1) | GB1582770A (en) |
| IT (1) | IT1112114B (en) |
| MX (1) | MX144620A (en) |
| NL (1) | NL7709160A (en) |
| SE (1) | SE432869B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999063866A1 (en) | 1998-06-05 | 1999-12-16 | Teknion Furniture Systems | Clutch for a seat adjustment mechanism |
| US20230148754A1 (en) * | 2016-06-09 | 2023-05-18 | Steelcase Inc. | Seating arrangement |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT387504B (en) * | 1984-05-15 | 1989-02-10 | Herzog Reinhold | Seat group which comprises a table and a corner bench |
| IT1183571B (en) * | 1985-05-08 | 1987-10-22 | Fantoni Arredamenti Spa | STRUCTURE OF ARMCHAIR AND / OR ANATOMICAL CHAIR IN MULTIPLE POSITIONS |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE515802C (en) * | 1931-01-14 | Albert Stoll | Chair with adjustable backrest | |
| US2627898A (en) * | 1951-02-19 | 1953-02-10 | Jackson George Mcstay | Chair having an adjustable seat and back rest |
| DE1998310U (en) * | 1968-08-17 | 1968-12-12 | Walter Roth | CIGARETTE TIP |
| JPS514607B1 (en) * | 1970-06-18 | 1976-02-13 | ||
| US3982785A (en) * | 1974-07-29 | 1976-09-28 | Center For Design Research And Development | Chair |
-
1977
- 1977-08-10 SE SE7709049A patent/SE432869B/en not_active IP Right Cessation
- 1977-08-17 CA CA284,886A patent/CA1076944A/en not_active Expired
- 1977-08-18 NL NL7709160A patent/NL7709160A/en not_active Application Discontinuation
- 1977-08-22 AU AU28120/77A patent/AU510832B2/en not_active Expired
- 1977-08-31 IT IT50841/77A patent/IT1112114B/en active
- 1977-09-01 FR FR7726580A patent/FR2363301B2/en not_active Expired
- 1977-09-02 AT AT0632177A patent/AT367991B/en not_active IP Right Cessation
- 1977-09-05 GB GB36987/77A patent/GB1582770A/en not_active Expired
- 1977-09-06 DE DE19772740072 patent/DE2740072A1/en not_active Withdrawn
- 1977-09-06 ES ES1977230752U patent/ES230752Y/en not_active Expired
- 1977-09-06 CH CH1086377A patent/CH618331A5/en not_active IP Right Cessation
- 1977-09-06 MX MX170474A patent/MX144620A/en unknown
- 1977-09-06 DK DK396377A patent/DK158372C/en not_active IP Right Cessation
- 1977-09-06 AR AR269108A patent/AR224227A1/en active
- 1977-09-06 BE BE180706A patent/BE858444R/en not_active IP Right Cessation
- 1977-09-07 JP JP10766777A patent/JPS5349563A/en active Pending
- 1977-09-08 BR BR7705953A patent/BR7705953A/en unknown
-
1987
- 1987-08-03 JP JP62194283A patent/JPS63109819A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999063866A1 (en) | 1998-06-05 | 1999-12-16 | Teknion Furniture Systems | Clutch for a seat adjustment mechanism |
| US6135556A (en) * | 1998-06-05 | 2000-10-24 | Teknion Furniture Systems Inc. | Seat adjustment mechanism |
| US20230148754A1 (en) * | 2016-06-09 | 2023-05-18 | Steelcase Inc. | Seating arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5349563A (en) | 1978-05-06 |
| BE858444R (en) | 1978-03-06 |
| ES230752U (en) | 1977-11-16 |
| AR224227A1 (en) | 1981-11-13 |
| SE7709049L (en) | 1978-03-08 |
| ES230752Y (en) | 1978-03-16 |
| NL7709160A (en) | 1978-03-09 |
| BR7705953A (en) | 1978-06-20 |
| AU510832B2 (en) | 1980-07-17 |
| FR2363301B2 (en) | 1986-02-14 |
| FR2363301A2 (en) | 1978-03-31 |
| AU2812077A (en) | 1979-03-01 |
| SE432869B (en) | 1984-04-30 |
| MX144620A (en) | 1981-10-30 |
| IT1112114B (en) | 1986-01-13 |
| CH618331A5 (en) | 1980-07-31 |
| DE2740072A1 (en) | 1978-03-09 |
| DK158372C (en) | 1990-10-15 |
| ATA632177A (en) | 1982-01-15 |
| DK158372B (en) | 1990-05-14 |
| JPS63109819A (en) | 1988-05-14 |
| DK396377A (en) | 1978-03-08 |
| AT367991B (en) | 1982-08-25 |
| GB1582770A (en) | 1981-01-14 |
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| Date | Code | Title | Description |
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| MKEX | Expiry |