CA2187965A1 - Musicians seating - Google Patents
Musicians seatingInfo
- Publication number
- CA2187965A1 CA2187965A1 CA 2187965 CA2187965A CA2187965A1 CA 2187965 A1 CA2187965 A1 CA 2187965A1 CA 2187965 CA2187965 CA 2187965 CA 2187965 A CA2187965 A CA 2187965A CA 2187965 A1 CA2187965 A1 CA 2187965A1
- Authority
- CA
- Canada
- Prior art keywords
- seat
- chair
- support
- bracket
- arm
- 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
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 description 4
- 210000001217 buttock Anatomy 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
- Special Chairs (AREA)
- Chairs Characterized By Structure (AREA)
Abstract
A chair includes a central support column, a seat unit supported by the column, to provide an adjustment for the seat height and an anti-rotation rod to prevent the seat from pivoting about the column. A backrest is mounted to a seat unit so as to be adjustable to provide support for a person sitting in a forward position in the seat unit.
Description
- 21 87~65 MUSICIANS SEATING
B~rk~round of Invention Office chairs are well known articles of commerce. Typically such chairs include a pedestal with a tubular column which is centrally upstanding ~eler~ " and a S seat portion. The seat portion typically includes a seat bracket and a central post depending from the bracket, which post is received telescopically within the tubular column to permit the seat to be swivelled about the central axis of the post. Means is normally provided for - adjusting the degree of telescoping of the post within the column, which means may comprise a simple screw jack or a lever operated gas cylinder, for example serving to 10 control the height of the chair seat. The seat bracket may permit the seat to pivot about a horizontal axis, so as to permit the adjustment of the rake of the seat. Generally the chair will include a chair back which is supported from the seat bracket in a manner to permit both the height and the fake of the chair back to the adjusted. Although the office chair support mech~nism~ are relatively complex, they are relatively inexpensive because of their 15 ubiquitous distribution.
Musicians' seating has in the past tended to be fairly rudimentary, ranging from simple piano benches to fixed or folding chairs none of which have any means for adjustment of the height or rake. Although the above mentioned office chairs have certain characteristics that are desirable for musicians' seating, others of the characteristics may 21 ~7~65 make them un~cceptable. These include the swivelling action of the chair at least where the seat is desired for use as a piano-style bench, and also the range over which back support is provided. Typically in an office chair this range is from an upright position of the clair back, wherein it is upstanding from adjacent the rear periphery of the seat, to a S le~aldly inclined position. Generally speaking, where a back support is provided for musicians' seating, it is desirable that this be adjustable to position appreciably more forwardly than the rear periphery of the seat, so as to provide support with the musician seated with the buttocks located somewhat folv~ardly of medial portions of the seat, as is often the case.
It is an object of my invention to provide a chair which is suitable for use by musicians.
It is another object of my invention to provide a musicians' chair which is constructible using ba~ic office chair components, so as to take advantage of their relatively low cost.
It is another object of my invention to provide a musicians' chair which provides a desired degree of back support.
21 8796~
Svmn-qrY of Invention In accordance with my invention, improvements are made to a musicians chair which typically comprises a support pedestal including a support column, and a seat unit. The seat unit includes a seat post which is ~uppolled from the support column for 5 rotation about the tubular axis of the post and for axial adjustment. The seat unit also includes a seat support bracket mounted to the seat post for movement therewith, and means for adjusting the axial position of the post, so as to vary the height of the seat unit.
In accordance with one aspect of my invention, the improvement comprises an anti-rotation rod secured to the seat unit for movement therewith in parallel relation to 10 the seat post, and a bracket means secured in fixed relation to the support pedestal within which the anti-rotation rod is telescopically received over the range of height adjustment of the chair.
Suitably, the rod and the bracket means are respectively secured to the post and the column by clamping thereto, although other more or less perm~nent means of 15 attaching and securing the rod and bracket means may be provided.
In accordance with another aspect of my invention, the improvement comprises a back support unit which incudes an arm pivotally mounted to the seat support bracket rearwardly of the rearward peripheral edge of the seat, whereby the arm is 21 87~65 generally moveable between a fo,vvard and a le~ i position along a medial line of the seat which extends between the axis about which the seat post rotates and the rearward peripheral of the seat. A lumber support is mounted to the distal end of the arm, and the arm is shaped whereby when the arm is in its forward position, the medial center of the S forward face of the lumbar Sul~pOl I iS disposed forwardly above the mid point of the medial line, suitably by a distance equal to about 75% of the dimerl~ion of the medial line.
The foregoing objects and aspects of the invention, together with other objects, aspects and advantages thereof will be more appalellt from a consideration of the following description of the preferred embodiment thereof taken in conjunction with the 10 drawings annexed hereto.
Brief D~r_. iu~ion of the DrawinP~
FIG 1 shows a chair suitable for use by musicians, in exploded, perspective vlew; and FIG 2 shows the upper portion of the chair of Fig.l in side elevation 15 DescriPtion of the Preferred Embodiment Referring to the Figures in detail, a musicians' chair is identified generally therein by the numeral 10. Chair 10 comprises a pedestal 12 with a tubular column 14 upstanding centrally thelefiol,l. Chair 10 further comprises a seat assembly 15 including an upholstered seat 16, seat support bracket 18 and seat post 20 which is telescopically received in tubular column 14. Seat post 20 has a cylindrical axis 22 about which the post is rotatable relative to column 14. Seat bracket 18 includes a lower f~ed chassis portion 5 24 and an upper portion 26 which is connected to the chassis portion by horizontal axle 28 disposed adjacent the folvvar~ end of the bracket. Accordingly, the upper portion 26 can tilt about axle 28 so as to adjust the rake of seat 16. A central lever 30 is provided to actuate a clutch (not shown) which serves to lock and unlock the rake adjustment. Seat 16 is secured to lugs 34 forming part of upper bracket portion 26 by screws 36. The upper 10 end 20U of seat post 20 typically jams into a downwardly opening socket 38 in chassis portion 24 to form a tight friction fit therein. The lower end of seat post 20 is supported within tubular column 14 by a gas cushion (not seen). The degree of penetration of seat post 20 within column 14 is controlled by a valve (not seen) actuated by means of control lever 40, which thus serves to adjust the height of seat 16 above pedestal 12. A backrest 15 support bracket 42 is hinged to chassis portion 24 adjacent the rearward end thereof by a horizontal axle 44 which permits the backrest support bracket to pivot forward and rearwardly from a vertical position about an arc of about 15 under the control of lever 46.
A backrest support arm 50 is slidingly supported from bracket 42, the length of the support arm above seat 26 being adjustable by means of a lock screw 52. As thus far described, ~ 2187965 seat 10 is of a known, more or less standard structure, although it will be appreciated that there are many variations thereof.
Chair 10 is particularly adapted for use as a musicians' bench type seat by providing an anti-swivel mec~ ni~m 60 to prevent the rotation of the seat 16 with respect 5 to pedestal 12. Anti-swivel mech~nism 60 comprises a first, lower bracket 62 which clamps to the upper end of column 14 using a clamping bolt 64, and a second upper bracket 66 which clamps to seat post 20 in marginally spaced apart relationship with the upper end 20U using clamping bolt 68. An anti-rotation rod 70 depends from the second bracket 66 and is slidingly received in an opening 72 in the lower bracket 62. A pin 74 10 projects upwardly from the upper bracket 66 to be received in mating relationship in an opening (not seen) in seat bracket 18. Anti-rotation rod 70 has a length such that when seat assembly 15 is elevated to its uppermost position, the rod will not disengage from the opening 72 in the lower seat bracket. Suitably, a shroud 76 extends to surround rod 70.
It is generally found desirable that opening 72 through which post 70 is 15 slidable should have a diameter somewhat greater than that of the post, so as to reduce the likelihood of the anti-rotation mech~nism 60 to bind when the height of seat 60 is being adjusted. A locking screw 78 is preferably provided to reduce the play between opening 72 and post 70 once the height of seat 16 has been adjusted.
Given the clamp-on nature of each of the lower and upper brackets 62, 66 forming part of the anti-swivel me~h~ni~m 60, it will be al~parent that standard, swivelling seat mech~nisms can be converted to the non-swivelling mech~nism easily and at a relatively low cost. It will also be apparent that other forms of anti swivel mech~nisms can 5 be adopted.
Preferably, backrest support arm 50 is not captured permanently in the backrest support bracket 42, so as to be removeable th~lerlo-ll in the event that chair 10 is used as a traditional piano bench-type seat. Where back support is desired, it is usually prefelled for several reasons that this be relatively restricted in area, and accordingly 10 support arm 50 is provided at the distal end thereof with a lumber support 80. When chair 10 is used by many musicians for playing while seated, the musicians will commonly prefer to adopt a forward posture on seat 16. Considering seat 16 to be de~lned in part by an upper surface 82 and a rearward peripheral side 84, a medial line 86 will intersect axis 22 at a point 88 located a distance Dl from side 84, which may typically be somewhat less 15 than 50% of the front to back dimension of seat 16. Arm 50 is provided with a cranked portion 90 which will suitably project the upper portions of the arm forwardly of the lower portions by a ~ nce equal to about 25% of the distance D1, such that when the arm is disposed in its forward position, a medial point 92 on the forward surface 94 of lumbar support 80 will be disposed at a horizontal displacement D2 forwardly of peripheral side 84 that is equal to about 75% of the distance Dl. Typically, when support arm 50 is adjusted to its rearward position, medial point 90 will be disposed at a horizontal displacement D3 folwardly of peripheral side 84 equal to about 25% of the distance Dl.
It will be appreciated that as the height of support arm 50 is varied when the arm is 5 inclined to the vertical forward displacement of medial point 90 will vary somewhat, and the typical displacements mentioned above are determined when arm 50 is adjusted so that the lumbar support 80 is suited to provide lumbar support for a user of average stature.
It will be appa~ent that many changes may be made to the illustrative embodiment while falling within the scope of the invention, and it is intended that all such 10 changes be covered by the claims appended hereto.
B~rk~round of Invention Office chairs are well known articles of commerce. Typically such chairs include a pedestal with a tubular column which is centrally upstanding ~eler~ " and a S seat portion. The seat portion typically includes a seat bracket and a central post depending from the bracket, which post is received telescopically within the tubular column to permit the seat to be swivelled about the central axis of the post. Means is normally provided for - adjusting the degree of telescoping of the post within the column, which means may comprise a simple screw jack or a lever operated gas cylinder, for example serving to 10 control the height of the chair seat. The seat bracket may permit the seat to pivot about a horizontal axis, so as to permit the adjustment of the rake of the seat. Generally the chair will include a chair back which is supported from the seat bracket in a manner to permit both the height and the fake of the chair back to the adjusted. Although the office chair support mech~nism~ are relatively complex, they are relatively inexpensive because of their 15 ubiquitous distribution.
Musicians' seating has in the past tended to be fairly rudimentary, ranging from simple piano benches to fixed or folding chairs none of which have any means for adjustment of the height or rake. Although the above mentioned office chairs have certain characteristics that are desirable for musicians' seating, others of the characteristics may 21 ~7~65 make them un~cceptable. These include the swivelling action of the chair at least where the seat is desired for use as a piano-style bench, and also the range over which back support is provided. Typically in an office chair this range is from an upright position of the clair back, wherein it is upstanding from adjacent the rear periphery of the seat, to a S le~aldly inclined position. Generally speaking, where a back support is provided for musicians' seating, it is desirable that this be adjustable to position appreciably more forwardly than the rear periphery of the seat, so as to provide support with the musician seated with the buttocks located somewhat folv~ardly of medial portions of the seat, as is often the case.
It is an object of my invention to provide a chair which is suitable for use by musicians.
It is another object of my invention to provide a musicians' chair which is constructible using ba~ic office chair components, so as to take advantage of their relatively low cost.
It is another object of my invention to provide a musicians' chair which provides a desired degree of back support.
21 8796~
Svmn-qrY of Invention In accordance with my invention, improvements are made to a musicians chair which typically comprises a support pedestal including a support column, and a seat unit. The seat unit includes a seat post which is ~uppolled from the support column for 5 rotation about the tubular axis of the post and for axial adjustment. The seat unit also includes a seat support bracket mounted to the seat post for movement therewith, and means for adjusting the axial position of the post, so as to vary the height of the seat unit.
In accordance with one aspect of my invention, the improvement comprises an anti-rotation rod secured to the seat unit for movement therewith in parallel relation to 10 the seat post, and a bracket means secured in fixed relation to the support pedestal within which the anti-rotation rod is telescopically received over the range of height adjustment of the chair.
Suitably, the rod and the bracket means are respectively secured to the post and the column by clamping thereto, although other more or less perm~nent means of 15 attaching and securing the rod and bracket means may be provided.
In accordance with another aspect of my invention, the improvement comprises a back support unit which incudes an arm pivotally mounted to the seat support bracket rearwardly of the rearward peripheral edge of the seat, whereby the arm is 21 87~65 generally moveable between a fo,vvard and a le~ i position along a medial line of the seat which extends between the axis about which the seat post rotates and the rearward peripheral of the seat. A lumber support is mounted to the distal end of the arm, and the arm is shaped whereby when the arm is in its forward position, the medial center of the S forward face of the lumbar Sul~pOl I iS disposed forwardly above the mid point of the medial line, suitably by a distance equal to about 75% of the dimerl~ion of the medial line.
The foregoing objects and aspects of the invention, together with other objects, aspects and advantages thereof will be more appalellt from a consideration of the following description of the preferred embodiment thereof taken in conjunction with the 10 drawings annexed hereto.
Brief D~r_. iu~ion of the DrawinP~
FIG 1 shows a chair suitable for use by musicians, in exploded, perspective vlew; and FIG 2 shows the upper portion of the chair of Fig.l in side elevation 15 DescriPtion of the Preferred Embodiment Referring to the Figures in detail, a musicians' chair is identified generally therein by the numeral 10. Chair 10 comprises a pedestal 12 with a tubular column 14 upstanding centrally thelefiol,l. Chair 10 further comprises a seat assembly 15 including an upholstered seat 16, seat support bracket 18 and seat post 20 which is telescopically received in tubular column 14. Seat post 20 has a cylindrical axis 22 about which the post is rotatable relative to column 14. Seat bracket 18 includes a lower f~ed chassis portion 5 24 and an upper portion 26 which is connected to the chassis portion by horizontal axle 28 disposed adjacent the folvvar~ end of the bracket. Accordingly, the upper portion 26 can tilt about axle 28 so as to adjust the rake of seat 16. A central lever 30 is provided to actuate a clutch (not shown) which serves to lock and unlock the rake adjustment. Seat 16 is secured to lugs 34 forming part of upper bracket portion 26 by screws 36. The upper 10 end 20U of seat post 20 typically jams into a downwardly opening socket 38 in chassis portion 24 to form a tight friction fit therein. The lower end of seat post 20 is supported within tubular column 14 by a gas cushion (not seen). The degree of penetration of seat post 20 within column 14 is controlled by a valve (not seen) actuated by means of control lever 40, which thus serves to adjust the height of seat 16 above pedestal 12. A backrest 15 support bracket 42 is hinged to chassis portion 24 adjacent the rearward end thereof by a horizontal axle 44 which permits the backrest support bracket to pivot forward and rearwardly from a vertical position about an arc of about 15 under the control of lever 46.
A backrest support arm 50 is slidingly supported from bracket 42, the length of the support arm above seat 26 being adjustable by means of a lock screw 52. As thus far described, ~ 2187965 seat 10 is of a known, more or less standard structure, although it will be appreciated that there are many variations thereof.
Chair 10 is particularly adapted for use as a musicians' bench type seat by providing an anti-swivel mec~ ni~m 60 to prevent the rotation of the seat 16 with respect 5 to pedestal 12. Anti-swivel mech~nism 60 comprises a first, lower bracket 62 which clamps to the upper end of column 14 using a clamping bolt 64, and a second upper bracket 66 which clamps to seat post 20 in marginally spaced apart relationship with the upper end 20U using clamping bolt 68. An anti-rotation rod 70 depends from the second bracket 66 and is slidingly received in an opening 72 in the lower bracket 62. A pin 74 10 projects upwardly from the upper bracket 66 to be received in mating relationship in an opening (not seen) in seat bracket 18. Anti-rotation rod 70 has a length such that when seat assembly 15 is elevated to its uppermost position, the rod will not disengage from the opening 72 in the lower seat bracket. Suitably, a shroud 76 extends to surround rod 70.
It is generally found desirable that opening 72 through which post 70 is 15 slidable should have a diameter somewhat greater than that of the post, so as to reduce the likelihood of the anti-rotation mech~nism 60 to bind when the height of seat 60 is being adjusted. A locking screw 78 is preferably provided to reduce the play between opening 72 and post 70 once the height of seat 16 has been adjusted.
Given the clamp-on nature of each of the lower and upper brackets 62, 66 forming part of the anti-swivel me~h~ni~m 60, it will be al~parent that standard, swivelling seat mech~nisms can be converted to the non-swivelling mech~nism easily and at a relatively low cost. It will also be apparent that other forms of anti swivel mech~nisms can 5 be adopted.
Preferably, backrest support arm 50 is not captured permanently in the backrest support bracket 42, so as to be removeable th~lerlo-ll in the event that chair 10 is used as a traditional piano bench-type seat. Where back support is desired, it is usually prefelled for several reasons that this be relatively restricted in area, and accordingly 10 support arm 50 is provided at the distal end thereof with a lumber support 80. When chair 10 is used by many musicians for playing while seated, the musicians will commonly prefer to adopt a forward posture on seat 16. Considering seat 16 to be de~lned in part by an upper surface 82 and a rearward peripheral side 84, a medial line 86 will intersect axis 22 at a point 88 located a distance Dl from side 84, which may typically be somewhat less 15 than 50% of the front to back dimension of seat 16. Arm 50 is provided with a cranked portion 90 which will suitably project the upper portions of the arm forwardly of the lower portions by a ~ nce equal to about 25% of the distance D1, such that when the arm is disposed in its forward position, a medial point 92 on the forward surface 94 of lumbar support 80 will be disposed at a horizontal displacement D2 forwardly of peripheral side 84 that is equal to about 75% of the distance Dl. Typically, when support arm 50 is adjusted to its rearward position, medial point 90 will be disposed at a horizontal displacement D3 folwardly of peripheral side 84 equal to about 25% of the distance Dl.
It will be appreciated that as the height of support arm 50 is varied when the arm is 5 inclined to the vertical forward displacement of medial point 90 will vary somewhat, and the typical displacements mentioned above are determined when arm 50 is adjusted so that the lumbar support 80 is suited to provide lumbar support for a user of average stature.
It will be appa~ent that many changes may be made to the illustrative embodiment while falling within the scope of the invention, and it is intended that all such 10 changes be covered by the claims appended hereto.
Claims (12)
1. In a chair comprising a support pedestal including a support column;
a seat unit including;
a seat post having a tubular axis supported from said support column for axial and radial movement, and a seat support bracket mounted to said seat post for movement therewith;
means for adjusting the axial position of said seat post relative to said support column;
the improvement comprising an anti-rotation rod secured to said seat unit in parallel relation to said seat post; and a bracket means secured in fixed relation to said support pedestal within which said anti-rotation rod is telescopically slidable.
a seat unit including;
a seat post having a tubular axis supported from said support column for axial and radial movement, and a seat support bracket mounted to said seat post for movement therewith;
means for adjusting the axial position of said seat post relative to said support column;
the improvement comprising an anti-rotation rod secured to said seat unit in parallel relation to said seat post; and a bracket means secured in fixed relation to said support pedestal within which said anti-rotation rod is telescopically slidable.
2. A chair as defined in Claim 1 wherein said anti-rotation rod is secured to said seat unit by a clamp secured to said seat post.
3. A chair as defined in Claim 2 including a pin extending between said clamp and said seat support bracket acting to restrict the relative movement of said seat support bracket and said clamp.
4. A chair as defined in Claim 1 wherein said anti rotation rod is secured to said seat unit at said seat support bracket.
5. A chair as defined in Claim 1 wherein said bracket means is secured to said pedestal by clamping to said support column.
6. A chair comprising a support pedestal including a support column;
a seat unit including;
a seat post having a tubular axis supported from said support column;
a seat support bracket mounted to said support column;
a seat mounted on said seat support, said seat having a rearwardly facing peripheral edge and a rearward dimension extending along a medial line between said axis and said rearward edge;
a back support unit comprising an arm pivotally mounted to said seat support bracket rearwardly of said peripheral edge for movement generally along said medial line between a forward position and a rearward position in which positions said arm is respectively forwardly and rearwardly inclined relative to said axis; and a lumbar support mounted to said arm adjacent the distal end thereof;
said lumbar support having a forward face with a notional center thereon;
wherein said notional center when said arm is in its forward position locates forwardly of a vertical line passing through the mid point of said medial line.
a seat unit including;
a seat post having a tubular axis supported from said support column;
a seat support bracket mounted to said support column;
a seat mounted on said seat support, said seat having a rearwardly facing peripheral edge and a rearward dimension extending along a medial line between said axis and said rearward edge;
a back support unit comprising an arm pivotally mounted to said seat support bracket rearwardly of said peripheral edge for movement generally along said medial line between a forward position and a rearward position in which positions said arm is respectively forwardly and rearwardly inclined relative to said axis; and a lumbar support mounted to said arm adjacent the distal end thereof;
said lumbar support having a forward face with a notional center thereon;
wherein said notional center when said arm is in its forward position locates forwardly of a vertical line passing through the mid point of said medial line.
7. A chair as defined in Claim 6 wherein said notional center locates adjacent to a vertical line passing through said peripheral edge of said chair when said arm is disposed at its rearward position.
8. A chair as defined in Claim 1 wherein said notional center locates on a vertical line disposed forwardly of said peripheral edge by a distance equal to about 75%
of said rearward dimension when said arm is in its forward position.
of said rearward dimension when said arm is in its forward position.
9. A chair as defined in Claim 1 wherein said arm is forwardly cranked intermediate opposed ends thereof by a distance equal to approximately 25% of said rearward dimension.
10. A chair as defined in Claim 9 wherein said back support unit includes means for adjusting the height of said lumbar support above said seat.
11. A chair as defined in Claim 7 wherein said seat post is mounted from said support column for rotation about said axis, and further comprising anti-rotation means extending between said seat unit and said pedestal for preventing the rotation of said seat unit about said axis.
12. A chair as defined in Claim 11 wherein said anti-rotation means includes a bracket means clamped to said support column in fixed relation thereto, and a rod mounted to said seat unit in fixed relation thereto. said rod being telescopically received in said bracket means.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US515595P | 1995-10-16 | 1995-10-16 | |
| US60/005,155 | 1995-10-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2187965A1 true CA2187965A1 (en) | 1997-04-17 |
Family
ID=21714458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2187965 Abandoned CA2187965A1 (en) | 1995-10-16 | 1996-10-16 | Musicians seating |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2187965A1 (en) |
-
1996
- 1996-10-16 CA CA 2187965 patent/CA2187965A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |
Effective date: 19991018 |