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A chair includes a base that has a generally U-shaped member. The generally U-shaped member is comprised of a front member attached to a first end portion and a second end portion. A seat is supported on the base and is moveable from an upright position to a reclined position. A first resilient memb

A chair includes a base that has a generally U-shaped member. The generally U-shaped member is comprised of a front member attached to a first end portion and a second end portion. A seat is supported on the base and is moveable from an upright position to a reclined position. A first resilient member is attached to the first end portion of the generally U-shaped member. A second resilient is attached to the second end portion of the generally U-shaped member. End portions of the first and second resilient members are attached to the seat adjacent to a rear portion of the seat. The first and second resilient members are sized and configured to resiliently move or flex such that the seat is positioned at the reclined position when a user sits on the seat.

대표청구항 ▼

1. A chair comprising: a base comprising a first support member, at least one leg and a generally U-shaped member, the generally U-shaped member being a tubular U-shaped structure having a front, a first end portion that extends rearwardly from the front and a second end portion that extends rearwar

1. A chair comprising: a base comprising a first support member, at least one leg and a generally U-shaped member, the generally U-shaped member being a tubular U-shaped structure having a front, a first end portion that extends rearwardly from the front and a second end portion that extends rearwardly from the front, the first end portion being curved and the second end portion being curved, the front of the U-shaped member being attached to an upper end of the first support member, the first support member extending downwardly and rearwardly from the front of the U-shaped member, a lower end of the first support member being attached to the at least one leg;a seat supported on the base, the first support member attached between the front of the U-shaped member and the at least one leg to provide a cantilevered support to the seat such that support at a front portion of the seat is at a height that is taller than support to the seat that is provided at a rear portion of the seat when the seat is in an upright position, the front of the U-shaped member being positioned adjacent the front of the seat, the seat moveable from the upright position to a reclined position, the seat being at a greater degree of declination when in the reclined position relative to the upright position;a first resilient member having a first end and a second end, the first end of the first resilient member received within and attached to the first end portion of the generally U-shaped member, the first resilient member having a shape of a rod;a second resilient member having a first end and a second end, the first end of the second resilient member received within and attached to the second end portion of the generally U-shaped member, the second resilient member having a shape of a rod;a first tubular portion attached to a bottom of the seat adjacent the rear portion of the seat;a second tubular portion attached to a bottom of the seat adjacent the rear portion of the seat;the second end of the first resilient member received within the first tubular portion to attach the second end of the first resilient member to the seat adjacent to the rear portion of the seat; andthe second end of the second resilient member received within the second tubular portion to attach the second end of the second resilient member to the seat adjacent to the rear portion of the seat; andthe first resilient member and the second resilient member sized and configured to resiliently move or flex such that the seat is positioned at the reclined position when a user sits on the seat. 2. The chair of claim 1 wherein the generally U-shaped member is a unitary structure. 3. The chair of claim 1 further comprising a first plug spring attached to the seat adjacent to the first end portion to engage with the first end portion to provide support to the first end portion when the seat is moved to the reclined position, a second plug spring attached to the seat adjacent to the second end portion to engage with the second end portion to provide support to the second end portion when the seat is moved to the reclined position, a third plug spring attached to the seat adjacent the first tubular portion to support the first tubular portion, and a fourth plug spring attached to the seat adjacent the second tubular portion to support the second tubular portion. 4. The chair of claim 1 wherein the first resilient member is an elongated pultrusion spring and the second resilient member is an elongated pultrusion spring. 5. The chair of claim 1 further comprising a back attached to at least one of the seat and the base. 6. The chair of claim 5 wherein the seat and the back are portions of a unitary seating structure composed of polymeric material. 7. The chair of claim 1 further comprising a back attached to at least one of the seat and the base such that the back is moved to a reclined position when the seat is moved to the reclined position of the seat and the back is moved to an upright position when the seat is moved to the upright position of the seat. 8. The chair of claim 1 further comprising a seating structure, the seat being a portion of the seating structure. 9. The chair of claim 1 wherein the at least one leg is comprised of a pair of front legs and a pair of rear legs, the rear legs attached to the front legs and the front legs attached to the generally U-shaped member via the first support. 10. The chair of claim 1 wherein the at least one leg is comprised of a plurality of legs, each of the legs having a first end and a second end, the first support member attached the first end of the legs and the second end of each of the legs is attached to a wheel or castor. 11. The chair of claim 10 wherein the first support member extends downwardly and rearwardly from the front member linearly at an angle relative to perfectly vertical to provide the cantilevered support to the seat. 12. The chair of claim 1 wherein the first resilient member is elongated and has a circular, elliptical, rectangular, hexagonal, or polygonal cross section and the second resilient member is elongated and has a circular, elliptical, rectangular, hexagonal, or polygonal cross section. 13. The chair of claim 1 wherein the at least one leg is comprised of a pair of front legs and a pair of rear legs, the rear legs directly attached to the front legs and the front legs attached to the generally U-shaped member via direct attachment to the first support member. 14. A chair comprising a seat having a bottom surface and a top surface opposite the bottom surface;a base attached below the seat, the base comprising a front base member directly attached to a first base member and a second base member, the front base member directly attached to the bottom surface of the seat adjacent a front of the seat, the first base member attached to the bottom surface of the seat, the first base member having an opening, the second base member attached to the bottom surface of the seat, the second base member having an opening;a first resilient member having a front end and a rear end, the front end of the first resilient member attached within the opening of the first base member;a second resilient member having a front end and a rear end, the front end of the second resilient member attached within the opening of the second base member; anda first tubular portion directly attached to the bottom surface of the seat adjacent a rear portion of the seat;a second tubular portion directly attached to the bottom surface of the seat adjacent the rear portion of the seat;the rear end of the first resilient member received within and attached to the first tubular portion and the rear end of the second resilient member positioned within and attached to the second tubular portion such that the first resilient member and the second resilient member resiliently move or flex such that the seat is positioned at a reclined position when a user sits on the seat. 15. The chair of claim 14 wherein the first base member and the second base member are end portions of a generally U-shaped member and the base is further comprised of a support member and a plurality of legs, the support member attached between the front base member and the legs. 16. The chair of claim 15 wherein the support member is attached between the front base member and the legs such that the base provides a cantilevered support to the seat such that support at a front portion of the seat is at a height that is taller than support to the seat that is provided at a rear portion of the seat when the seat is in an upright position. 17. The chair of claim 16 wherein fastening mechanism directly attaches the support member to at least one of the legs to attach the legs to the support member. 18. The chair of claim 17 wherein the first resilient member is a pultrusion spring and the second resilient member is a pultrusion spring. 19. The chair of claim 14 further comprising a first plug spring attached to the seat adjacent to the first base member to provide support to the first base member when the seat is moved to the reclined position and a second plug spring attached to the seat adjacent to the second base member to provide support to the second base member when the seat is moved to the reclined position. 20. A chair comprising: a base comprising at least one leg and a generally U-shaped member, the generally U-shaped member attached to the at least one leg, the generally U-shaped member comprised of a front member attached to a first tubular end portion and a second tubular end portion;the base also comprising a support member attached between the generally U-shaped member and the at least one leg, the support member extending downwardly and rearwardly from adjacent a front of the generally U-shaped member to the at least one leg to provide a cantilevered support to a seat such that a front portion of the seat is supported at a location that is higher than a location at which a rear portion of the seat is supported when the seat is in an upright position;the seat being supported on the base and being moveable from the upright position to a reclined position, the seat being at a greater degree of declination when in the reclined position relative to the upright position;a first resilient member having a first end and a second end, the first end of the first resilient member attached to the first tubular end portion of the generally U-shaped member such that a portion of the first end of the first resilient member is positioned in the first tubular end portion of the generally U-shaped member;a second resilient member having a first end and a second end, the first end of the second resilient member attached to the second tubular end portion of the generally U-shaped member such that a portion of the first end of the second resilient member is positioned in the second tubular end portion of the generally U-shaped member;a first fastening mechanism attached to the seat, the second end of the first resilient member attached to the first fastening mechanism adjacent to the rear portion of the seat, a portion of the second end of the first resilient member being retained in a portion of the first fastening mechanism;a second fastening mechanism attached to the seat, the second fastening mechanism being spaced apart from the first fastening mechanism, the second end of the second resilient member attached to the second fastening mechanism adjacent to the rear portion of the seat, a portion of the second end of the second resilient member being retained in a portion of the second fastening mechanism;a first plug spring attached to the seat adjacent to the first end tubular portion to engage with the first tubular end portion to provide support to the first tubular end portion when the seat is moved to the reclined position;a second plug spring attached to the seat adjacent to the second tubular end portion to engage with the second tubular end portion to provide support to the second tubular end portion when the seat is moved to the reclined position;a third plug spring attached to the seat adjacent the first fastening mechanism to support the first fastening mechanism; anda fourth plug spring attached to the seat adjacent the second fastening mechanism to support the second fastening mechanism; andthe first resilient member and the second resilient member sized and configured to resiliently move or flex such that the seat is positioned at the reclined position when a user sits on the seat.