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US 7,172,538 B2Granted
Exercise apparatus
AssigneeKeiser Corporation
InventorDennis L. Keiser
Life of this patent
Estimating the term…
Abstract
An exercise apparatus includes a compact resistance unit that houses a pneumatic cylinder. The cylinder is connected to a pulley wheel that moves at least toward the cylinder. A main cable extends about a portion of the pulley wheel. One end of the main cable is fixed to the unit housing and the other end is attached to a pulley block of a block-and-tackle mechanism. A user cable extends through the block-and-tackle mechanism and is connected to a handle. The pneumatic cylinder resists movement of the handle away from the unit.
Claims48
An exercise apparatus comprising:
- a frame;
- a user interface movable between a retracted position and an extended position;
- a pneumatic actuator having a cylinder and a piston rod that extends from the cylinder along a stroke axis, the pneumatic actuator being disposed on the frame;
- a pulley wheel rotatably connected to the piston rod;
- and
- a cable wrapped about at least a portion of the pulley wheel and having a first cable end and a second cable end, the second cable end being fixed to the frame and the first cable end being coupled to the user interface.
3 more elements
An exercise system comprising:
- a station frame;
- a resistance unit being configured to provide an exercise resistance force and cooperating with a user interface, the resistance unit being movably connected to the station frame so that the resistance unit can be moved in a lateral direction relative to a user and between at least a first position and a second position.
An exercise apparatus comprising:
- a frame;
- a user interface movable between a retracted position and an extended position;
- a pneumatic actuator having a cylinder and a piston rod that extends from the cylinder along a stroke axis, the pneumatic actuator being disposed on the frame;
- a pulley system disposed at least in part next to the pneumatic actuator, the pulley system coupled to the user interface;
- and
- means for coupling the pneumatic actuator to the pulley system so as to provide resistance to movement of the user interface toward the extended position.
3 more elements
An exercise system comprising:
- a station frame;
- a resistance unit being configured to provide an exercise resistance force and cooperating with a user interface, the resistance unit being movably connected to the station frame so that the resistance unit can be moved between a plurality of discrete positions relative to the track;
- and
- a locking mechanism that selectively locks the resistance unit to the station frame at one of the discrete positions.
1 more element
An exercise system comprising:
- a station frame;
- a resistance unit being configured to provide an exercise resistance force and cooperating with a user interface, the resistance unit being movably connected to the station frame so that the resistance unit can be moved between at least a first position and a second position;
- and
- a second resistance unit being movably connected to the station frame.
1 more element
An exercise system comprising:
- a station frame;
- a resistance unit having a pneumatic actuator and being configured to provide an exercise resistance force and cooperating with a user interface, the resistance unit being movably connected to the station frame so that the resistance unit can be moved between at least a first position and a second position.
An exercise system comprising:
- a station frame;
- a seat assembly movably connected to the station frame so that the seat assembly can be moved between at least a first position and a second position;
- and
- a resistance unit being configured to provide an exercise resistance force and cooperating with a user interface, the resistance unit being movably connected to the station frame so that the resistance unit can be moved between at least a first position and a second position.
1 more element
An exercise apparatus comprising:
- a frame;
- a user interface movable between a retracted position and an extended position;
- a pneumatic actuator having a cylinder and a piston rod that extends from the cylinder along a stroke axis, the pneumatic actuator being disposed on the frame;
- a pulley wheel operatively coupled to the piston rod such that movement of the piston rod varies the distance between the pulley wheel and the cylinder;
- and
- a cable wrapped about at least a portion of the pulley wheel and having a first cable end and a second cable end, the second cable end being fixed to the frame and the first cable end being coupled to the user interface.
3 more elements
An exercise apparatus comprising:
- a frame;
- a user interface movable between a retracted position and an extended position;
- a pneumatic actuator having a cylinder and a piston rod that extends from the cylinder along a stroke axis, the pneumatic actuator being disposed on the frame;
- a pulley wheel operatively coupled to the piston rod at a location offset from a center of the pulley wheel;
- and
- a cable wrapped about at least a portion of the pulley wheel and having a first cable end and a second cable end, the second cable end being fixed to the frame and the first cable end being coupled to the user interface.
3 more elements
Dependencies are inferred from the claim text.