초록 ▼

A seat cushion including a first and second pillar positioned specifically for receiving the ischial tuberosities of a user. The pillars relieve the pressure of the ischial tuberosity areas, but are easy and inexpensive to manufacture. In addition, the position of the pillars can be customized for a

A seat cushion including a first and second pillar positioned specifically for receiving the ischial tuberosities of a user. The pillars relieve the pressure of the ischial tuberosity areas, but are easy and inexpensive to manufacture. In addition, the position of the pillars can be customized for a particular user. Hence, pressure reduction is accomplished only where it is needed. The invention can be used on flat cushions and on cushions with a molded shape.

대표청구항 ▼

1. A cushion consisting of:a cushioning member having a first pillar positioned for receiving a first ischial tuberosity of a user, and a second pillar positioned for receiving a second ischial tuberosity of the user wherein each pillar includes at least one slot extending therefrom that gradually r

1. A cushion consisting of:a cushioning member having a first pillar positioned for receiving a first ischial tuberosity of a user, and a second pillar positioned for receiving a second ischial tuberosity of the user wherein each pillar includes at least one slot extending therefrom that gradually recedes to zero depth. 2. The cushion of claim 1, wherein each pillar has a polygonal cross-section. 3. The cushion of claim 2, wherein the polygonal cross-section is that of a square. 4. The cushion of claim 3, wherein the square is formed by a first set of parallel cuts and a second set of parallel cuts that substantially perpendicularly intersect the first set. 5. The cushion of claim 3, wherein the cushioning member includes a foam, and the at least one slot has a substantially trapezoidal shape extending into the foam. 6. The cushion of claim 3, wherein the square is formed by four substantially perpendicular cuts. 7. The cushion of claim 2, wherein each pillar further includes at least one graduated slot extending from each corner of the polygonal cross-section. 8. The cushion of claim 1, wherein each pillar has a substantially circular cross-section and includes at least four equidistantly positioned graduated slots extending radially from the circular cross-section. 9. The cushion of claim 1, wherein the cushioning member is made of a polyurethane foam. 10. The cushion of claim 1, wherein the first and second pillar extend approximately one half the thickness of the cushioning member. 11. A cushion consisting of:a cushioning member made of a foam;a first pillar positioned in the cushioning member for receiving a first ischial tuberosity of a user;a second pillar positioned in the cushioning member for receiving a second ischial tuberosity of the user; andat least one slot extending from each pillar that gradually recedes to zero depth. 12. The cushion of claim 11, wherein each pillar has a polygonal cross-section. 13. The cushion of claim 12, wherein each pillar further includes at least one graduated slot extending from each corner of the polygonal cross-section. 14. The cushion of claim 11, wherein each pillar has a substantially circular cross-section and includes at least four equidistantly positioned graduated slots extending radially from the circular cross-section. 15. The cushion of claim 11, wherein the first and second pillar extend approximately one half the thickness of the cushioning member. 16. A seat cushion comprising:a cushioning member made of a polyurethane foam, the cushioning member including:a first pillar formed in the cushioning member for receiving a first ischial tuberosity of a user, the first pillar having a polygonal cross-section and at least one graduated slot extending from each corner of the polygonal cross-section and receding to a zero depth relative to a surface of the cushioning member; anda second pillar positioned for receiving a second ischial tuberosity of the user, the second pillar having a polygonal cross-section and at least one graduate slot extending from each corner of the polygonal cross-section and receding to a zero depth relative to a surface of the cushioning member. 17. The seat cushion of claim 16, wherein each pillar is cut into the cushioning member. 18. The seat cushion of claim 16, wherein each pillar is molded into the cushioning member. 19. The seat cushion of claim 16, wherein each pillar extends approximately one half the thickness of the cushioning member.