| 摘要 |
Exercising equipment of the rowing machine type, with a foot rest, a sliding seat, and a pivoted T handle. Work done by the user in pulling the handle backwards is dissipated by a flat strap of nylon webbing, attached at one end to the handle, and running in an undulating path between a series of cylindrical guides to a springloaded drum which maintains a tension in the strap, to generate friction between the strap and the guides. Some of the guides are adjustable to vary the angle of wrap of the strap around the guides, and thereby vary the amount of friction, by means of a cam and follower arrangement. A spring loaded blocking device attached to the handle is provided to relieve the strap tension to facilitate operation of the cam and follower.
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