초록 ▼

A rowing exercise machine has a horizontal tubular member on which a seat is mounted on rollers for movement along the member. The horizontal member also mounts foot rests which may be removable. A flywheel assembly is mounted either at the front or rear end of the horizontal member. The flywheel as

A rowing exercise machine has a horizontal tubular member on which a seat is mounted on rollers for movement along the member. The horizontal member also mounts foot rests which may be removable. A flywheel assembly is mounted either at the front or rear end of the horizontal member. The flywheel assembly includes a flywheel and a one-way clutch connected to the flywheel. The flywheel is rotated by a user pulling on a handle which is connected by cables, chains or toothed belts to sprockets connected to the flywheel through the one-way clutch. The handle, cable or chain is attached to a slide that moves within the horizontal member and a tension cord is also connected to the slide to urge the handle through a retracted position. The clutch is disengaged when the handle retracts. The flywheel has a non-magnetic, conducting rim portion that passes through a magnetic field created by a stationary field piece having one or more field coils. Switches are actuated by the movement of the slide block within the horizontal member to alternately open and close a circuit from a source of current to the field coil at various positions during a rowing stroke.

대표청구항 ▼

A rowing exerciser, comprising: a horizontal frame; a seat mounted for movement along the frame; stationary foot rests on the frame; a flywheel rotatably mounted adjacent the frame; handle means for rotating the flywheel; an eddy current brake coupled to the flywheel to resist rotation of the flywhe

A rowing exerciser, comprising: a horizontal frame; a seat mounted for movement along the frame; stationary foot rests on the frame; a flywheel rotatably mounted adjacent the frame; handle means for rotating the flywheel; an eddy current brake coupled to the flywheel to resist rotation of the flywheel by the handle means; and said eddy-current brake comprises a nonmagnetic conducting rim on said flywheel and stationary means adjacent said rim for creating a magnetic field through which the rim rotates.