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US 5,000,444 AGranted
Dual action exercise cycle
AssigneeProform Fitness Products, Inc.
InventorsWilliam T. Dalebout, Curt G. Bingham
Life of this patent
Estimating the term…
Abstract
An exercise cycle of the invention includes a frame, a seat, a pedal assembly, an air-resistance device, and a movable handlebar assembly. The crankshaft of the pedal assembly is attached to a first gear which is then in turn mechanically linked to the second gear and pivotally attached to the handlebars to cause an oscillating synchronous motion upon operation of the pedal assembly.
Claims13
An exercise cycle, comprising:
- a frame;
- a seat adapted to said frame;
- a pedal assembly mechanically associated with said frame and positioned for operation by the feed of user on said seat, said pedal assembly including a crankshaft having a first rotational axis;
- a wheel rotatably adapted to said frame for resisting operation of said pedal assembly, said wheel having a driven sprocket;
- a drive sprocket attached to said crankshaft for rotation about said first rotational axis;
- a single endless loop drive means directly interconnecting said drive sprocket with said driven sprocket of said wheel;
- first gear means mechanically linked with said crankshaft for rotation about said first rotational axis;
- second gear means associated with said frame and drivingly linked to said first gear means for operation about a second rotational axis proximate to said first rotational axis;
- a pair of handlebars each pivotedly attached to said frame to pivot about a handlebar axis, each handlebar having an upper portion with a handle for grasping by a user positioned on said seat and each having a lower portion extending downwardly and forwardly of said pedal assembly;
- and
- a pair of drive arms each mechanically linked with said second gear means and each pivotally attached to the lower portion of a respective one of said handlebars at a respective first pivot point above said handlebar axis distance to urge operation of said wheel upon operation of said handlebars.
8 more elements
An exercise cycle, comprising:
- a frame;
- a seat adapted to said frame;
- a pedal assembly associated with said frame for operation by the feet of a user positioned on said seat, said pedal assembly including:
- a crankshaft having a first rotational axis, a driving sprocket secured to said crankshaft for rotation thereabout, and
- a pair of foot pedal arms associated with said crankshaft to be engaged by the feet of a user and to operate said crankshaft about said first rotational axis;
- a wheel associated with said frame for resisting operation of said pedal assembly, said wheel including a driven sprocket;
- a single chain interconnecting said crankshaft with said wheel by engagement with said driving sprocket and said driven sprocket;
- first gear means associated with said crankshaft for rotation about said first rotational axis;
- second gear means associated with said frame and mechanically linked with said first gear means for rotation about a second rotational axis distinct from said first rotational axis;
- a pair of handlebars sized and adapted to be operated by the hands of a user, each said handlebar being attached to said frame to pivot about a handle bar axis;
- and
- a pair of drive arms pivotally associated with said second gear means at a preselected offset distance from said second rotational axis, each of said pair of drive arms also being pivotally associated to a respective one of said handlebars at a first pivot point which is at a fixed offset distance from above said handlebar axis.
9 more elements
Dependencies are inferred from the claim text.