摘要:
There is described a tiltable chair including a base member (44), a seat (32), a back (34) and a linkage assembly (40) adapted to allow the seat and back to tilt downwardly and rearwardly and to allow pivotal movement of the seat about a pivot axis (54) in substantial alignment with the hip joints of a user. Other aspects of the invention are to provide a vertically adjustable column (42) for supporting the seat of the chair, a support assembly including a frame member (33,64) having a central opening (352) therethrough and a receptacle formed around the perimeter thereof, a carrier member (362) adapted to fit inside the receptacle, a membrane (210,212) of elastic material covering the central opening (352), and a pair of armrests (36) adapted to be mounted to the chair to allow pivotal movement thereof.
摘要:
There is described a tiltable chair including a base member (44), a seat (32), a back (34) and a linkage assembly (40) adapted to allow the seat and back to tilt downwardly and rearwardly and to allow pivotal movement of the seat about a pivot axis (54) in substantial alignment with the hip joints of a user. Other aspects of the invention are to provide a vertically adjustable column (42) for supporting the seat of the chair, a support assembly including a frame member (33,64) having a central opening (352) therethrough and a receptacle formed around the perimeter thereof, a carrier member (362) adapted to fit inside the receptacle, a membrane (210,212) of elastic material covering the central opening (352), and a pair of armrests (36) adapted to be mounted to the chair to allow pivotal movement thereof.
摘要:
There is described a tiltable chair including a base member, a seat, a back and a linkage assembly adapted to allow the seat and back to tilt downwardly and rearwardly and to allow pivotal movement of the seat about a pivot axis in substantial alignment with the hIp joints of a user. Other aspects of the invention are to provide a vertically adjustable column for supporting the seat of the chair, a support assembly including a frame member having a central opening therethrough and a receptacle formed around the perimeter thereof, a carrier member adapted to fit inside the receptacle, a membrane of elastic material covering the central opening, and a pair of armrests adapted to be mounted to the chair to allow pivotal movement thereof.
摘要:
There is described a tiltable chair including a base member, a seat, a back and a linkage assembly adapted to allow the seat and back to tilt downwardly and rearwardly and to allow pivotal movement of the seat about a pivot axis in substantial alignment with the hip joints of a user. Other aspects of the invention are to provide a vertically adjustable column for supporting the seat of the chair, a support assembly including a frame member having a central opening therethrough and a receptacle formed around the perimeter thereof, a carrier member adapted to fit inside the receptacle, a membrane of elastic material covering the central opening, and a pair of armrests adapted to be mounted to the chair to allow pivotal movement thereof.
摘要:
A seat back adjustment unit (20) including a seat attaching plate (22) which is fixedly secured to the seat (28) of a chair and a back mounting plate (24) which will have mounted thereon the customary seat back (30). The seat attaching plate (22) has an upwardly and rearwardly curved portion (34) on which there is mounted an adjustment unit (26). The adjustment unit (26) in turn carries a lower generally horizontal portion (44) of the back mounting plate (24). The adjustment unit (26) includes a housing (52) which is guidedly mounted on the curved rear portion (34) of the seat attaching plate (22) while the same housing (52) has guidedly received therein the lower portion (44) of the back mounting plate (24). The adjustment unit (26) includes within the housing (52) thereof a reduction gear drive unit (70) which includes two driven member interlocked by pin and slot connections to the seat attaching plate (22) and the back mounting plate (24) for selective relative movement between the plates and the housing of the adjustment unit (26). A single actuator (86) is selectively positionable to drive a selective half of the reduction gear drive unit (70) to adjust either the tilt or the position of the seat back (30).
摘要:
A support assembly for supporting an object on a floor. The support assembly includes a leg member and a heel member mounted on said leg member. The heel member is adapted to engage the floor. A foot member is pivotally attached to the leg member. The foot member is adapted to pivot between an upright storage position and a lateral support position. When in the lateral support position, the foot member is adapted to engage the floor at a point spaced apart from the heel member. In a preferred embodiment, a cover is provided to conceal the foot member when placed in the upright storage position. In a preferred embodiment, the heel member comprises a height adjustable glide device that includes a base portion and a stem portion extending upwardly from the base portion. A shaft is disposed in the stem portion and operable engages an actuator disposed in a cavity formed in the base portion. The shaft operably engages the leg member to provide vertical adjustment of the leg member. In a preferred embodiment, the support assembly also includes a support bracket releasably mounted to the leg member. The support bracket and leg member are adapted so as to permit the support bracket to be rotated between at least three positions relative to the leg member.
摘要:
A seat back adjustment unit (20) including a seat attaching plate (22) which is fixedly secured to the seat (28) of a chair and a back mounting plate (24) which will have mounted thereon the customary seat back (30). The seat attaching plate (22) has an upwardly and rearwardly curved portion (34) on which there is mounted an adjustment unit (26). The adjustment unit (26) in turn carries a lower generally horizontal portion (44) of the back mounting plate (24). The adjustment unit (26) includes a housing (52) which is guidedly mounted on the curved rear portion (34) of the seat attaching plate (22) while the same housing (52) has guidedly received therein the lower portion (44) of the back mounting plate (24). The adjustment unit (26) includes within the housing (52) thereof a reduction gear drive unit (70) which includes two driven member interlocked by pin and slot connections to the seat attaching plate (22) and the back mounting plate (24) for selective relative movement between the plates and the housing of the adjustment unit (26). A single actuator (86) is selectively positionable to drive a selective half of the reduction gear drive unit (70) to adjust either the tilt or the position of the seat back (30).