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OwnerAlan S. Reitz, Paxton P. Powers +1inventors
InventorsAlan S. Reitz, Paxton P. Powers, Ronald O. Browne
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An exercise and rehabilitation chair and method includes pivotal front support legs, rigid rear legs, a seat assembly having a seat bottom and seat back and upper and lower arms, each upper and lower arm being pivotally coupled at a rearward end to a pivotal support arm rigid with a seat back and at a forward end to an upper end of a pivotal front leg. Bearing structures pivotally connect corresponding support arms and rear legs and establish a fulcrum about which the seat assembly may rotate. The bearing structures are simultaneously adjustable longitudinally along the pivotal support arms and rigid rear legs with displacement of the fulcrum relative to a user's hips regulating the resistance of chair operation. A foot assembly is pivotally coupled to the front legs and the forward ends of the upper and lower arms. All pivotal connections correspond anatomically to a user's joints for low joint stress and low-resistance exercise.
A method of exercising in an exercise chair having a generally horizontally supported seat, a pivot linkage connected to the seat, a front leg support connected to said linkage to determine a chair knee joint axis, a rear back support connected to said linkage to define a chair hip joint axis, a seat back, and a fulcrum pivot spaced above said chair hip joint axis and connected to said seat back and said linkage, said method comprising the steps of:
A method of exercising which comprises the steps of:
A method of operating an exercise chair having a generally horizontally supported seat, a pivot linkage connected to the seat, a front leg support connected to said linkage to determine a first pivot axis, a seat back, and a fulcrum pivot connected to said seat back and said linkage to define a second pivot, said method comprising the steps of exerting a rearward force on said seat back and at the same time a generally opposite force on said front leg support to rotate said front leg support about said first axis from an at rest position to a raised position and rotate said seat back about said, second pivot between an upright position and a backward inclined position, relaxing said forces, and alternately exerting and relaxing said forces.
A method of exercising in an exercise chair having a generally horizontally supported seat, a pivotal front leg support, and a seat back, said method comprising the steps of:
An exercise chair comprising a pair of laterally spaced, stationary upstanding rigid rear supports, a pair of laterally spaced upstanding front supports pivotal about a transverse axis at a lower end thereof, a pair of laterally spaced, generally horizontal supporting arms having a seat supported therefrom, a first pivot connecting a forward end of each of said arms to the upper end of said front pivotal support, a seat back connected to a rearward end of said arms by a second pivot, and a third pivot connecting the upper end of each of said rigid rear supports and said seat back, said third pivot located at a position spaced above said second pivot, said third pivot being adjustable in relation to said seat back and said rigid rear supports to adjust the distance between said second and third pivots to vary the force required to move the seat and seat back between upright and reclined positions when exerting a rearward force on said seat back and to move said arms and seat forwardly about the second pivot and to pivot the upper end of said front supports about the transverse axis at their lower ends, with relaxation of said force enabling an occupant's weight on the seat to return said seat and seat back to an upright position.
An exercise chair comprising an upstanding rigid rear support, an upstanding front support pivotal about a transverse axis at a lower end thereof, a supporting arm having a seat supported therefrom, a first pivot connecting a forward end of said arm to the upper end of said front pivotal support, a seat back connected to a rearward end of said arm by a second pivot, and a third pivot connecting the upper end of said rigid rear support and said seat back, said third pivot located at a position spaced above said second pivot, said third pivot being adjustable in relation to said seat back and said rigid rear support to adjust the distance between said second and third pivots to vary the force required to move the seat and seat back between upright and reclined positions when exerting a rearward force on said seat back and to move said arm and seat forwardly about the second pivot and to pivot the upper end of said front support about the transverse axis at its lower end, with relaxation of said force enabling an occupant's weight on the seat to return said seat and seat back to an upright position, and a foot rest pivotally supported from said first pivot in depending relation thereto, a second supporting arm below said seat supporting arm and having a forward end connected to said foot rest at a fourth pivot below said first pivot, said second arm including a rearward end pivotally connected to said seat back at a fifth pivot below said second pivot to form a parallelogram linkage for pivoting the foot rest in response to pivotal movement of the seat back.
Dependencies are inferred from the claim text.