초록

Chairs for encouraging proper posture for performers, including vocalists and instrumentalists. Chairs allow for maintenance of proper posture by performers seated in engaged and in perched positions.

대표청구항 ▼

The invention claimed is: 1. A chair capable of enhancing the posture of a user, the chair comprising: a frame having a pair of front legs, a rear leg assembly, a seat cross bar connecting the front legs, a pair of upright bars attached to the rear leg assembly and a seat back cross bar connecting

The invention claimed is: 1. A chair capable of enhancing the posture of a user, the chair comprising: a frame having a pair of front legs, a rear leg assembly, a seat cross bar connecting the front legs, a pair of upright bars attached to the rear leg assembly and a seat back cross bar connecting the upright bars; a seat pan connected to the frame through operable attachment to at least one of the rear leg assembly and the seat cross bar, the seat pan having a first placement zone defined at a rear portion of the seat, a second placement zone defined anterior and above the first placement zone and a front portion extending anterior and downward from the second placement zone; and an anterior-facing convex seat back connected to the frame through operable attachment to at least one of the upright bars and the seat back cross bar, the anterior-facing convex seat back positioned at least partially above the seat pan; and wherein the first placement zone is adapted to support a user's pelvis such that the anterior-facing convex seat back simultaneously engages the user to define a posture supporting engaged position, wherein the second placement zone and front zone are adapted to support the user's pelvis in a perch position, and wherein a highest point on the second placement zone is at least about 0.55 inches above a seating surface of the first placement zone. 2. The chair of claim 1, wherein the highest point on the second placement zone is about 0.55 inches to about 1.0 inches higher than the seating surface of the first placement zone. 3. The chair of claim 2, wherein the highest point on the second placement zone is about 0.6 inches to about 0.9 inches higher than the seating surface of the first placement zone. 4. The chair of claim 3, wherein the highest point on the second placement zone is about 0.7 inches higher than the seating surface of the first placement zone. 5. The chair of claim 1, wherein the first placement zone and the second placement zone are interconnected with a transition zone having an angle of elevation from about six degrees to about twelve degrees. 6. The chair of claim 5, wherein the angle of elevation is about nine degrees. 7. The chair of claim 1, wherein the front portion curls over at least a portion of the front legs. 8. The chair of claim 1, wherein the front portion defines a waterfall region having a first front slope, a second front slope posterior to the first front slope and a third front slope posterior to the second front slope, wherein the first front slope has a first curvature equivalent to a first radius, the second front slope has a second curvature equivalent to a second radius and the third front slope has a third curvature equivalent to a third radius, wherein the first radius is smaller than the second radius and the second radius is smaller than the third radius. 9. The chair of claim 8, wherein the first front slope has a first curvature equivalent to a first radius of about 0.9 inches, the second front slope has a second curvature equivalent to a second radius of about 3.3 inches and the third front slope has a third curvature equivalent to a third radius of about 14 inches. 10. The chair of claim 1, wherein the front portion includes a plurality of molded ridges on an underside of the seat pan, the plurality of molded ridges being arranged substantially at or near and perpendicular to a front edge of the front portion. 11. The chair of claim 1, wherein the first placement zone defines an upward sloping rear portion having a first rear slope and a second rear slope, wherein the first rear slope has a curvature equivalent to a first radius and the second rear slope has a curvature equivalent to a second radius, wherein the second radius is larger than the first radius. 12. The chair of claim 11, wherein the first rear slope has a curvature equivalent to a first radius of about 6.5 inches and the second rear slope has a curvature equivalent to a second radius of about 3.7 inches. 13. A chair comprising: a frame having a pair of front legs, a rear leg assembly, a pair of upright bars attached to the rear leg assembly and a seat back cross bar connecting the upright bars; a seat back attached to at least one of upright bar and the seat cross back bar, the seat back having an anterior facing convex surface; and a seat attached to the frame above the pair of front legs, the seat defining a first placement zone, a second placement zone, a transition zone and a front portion; wherein the first placement zone defines an upward sloping rear portion having a first rear slope and a second rear slope posterior to the first rear slope, wherein the first rear slope has a curvature equivalent to a first radius of about 6.5 inches and the second rear slope has a curvature equivalent to a second radius of about 3.7 inches, wherein the transition zone interconnects the first placement zone and the second placement zone, the transition zone having an angle of elevation from about six degrees to about twelve degrees, wherein the second placement zone is located anterior to and above the first placement zone, and wherein the front portion defines a waterfall region extending anterior to and descending downward from the anterior of the second placement zone, the waterfall region having a first front slope, a second front slope posterior to the first front slope and a third front slope posterior to the second front slope, wherein the first front slope has a first curvature equivalent to a first radius of about 0.9 inches, the second front slope has a second curvature equivalent to a second radius of about 3.3 inches and the third front slope has a third curvature equivalent to a third radius of about 14 inches. 14. The chair of claim 13, wherein a highest point on the second placement zone is at least about 0.55 inches above a seating surface of the first placement zone. 15. The chair of claim 13, wherein the front portion includes a plurality of parallel ridges on an underside of the front portion, the plurality of parallel ridges being arranged substantially perpendicular to a front edge of the front portion so as to reinforce the waterfall region. 16. The chair of claim 13, wherein the frame comprises a pair of front legs and wherein the front portion of the seat at least partially curls over the frame so as to at least partially cover a pair of front legs and a seat cross bar on the frame. 17. The chair of claim 13, wherein an engaged position is defined by a user simultaneously engaging the first placement zone and the anterior facing convex surface on the seat back. 18. The chair of claim 13, wherein a perched position is defined by a user engaging the second placement zone. 19. The chair of claim 13, wherein an underside of the seat includes a pair of notches for receiving and partially surrounding at least a portion of each of the front legs.