Sportcrafters, Inc.

Patrick T Kulwicki

Peter V Colan

A self-compensating tire compression device is provided for use with a trainer. The device attaches to a frame, such as a bicycle, that holds the axis of a driving wheel fixed. The device has a pivoting portion that presses a driven portion of a resistance device against the driving wheel. The pivoting point of the pivoting portion is located on the trainer to provide a static contact pressure between the driving wheel and the driven wheel, and when the driving wheel begins to rotate and the resistance device begins to resist the rotation, the contact pressure between the driving wheel and the driven wheel increases to prevent slippage between the two wheels.

Self-compensating tire compression trainer

A two-stage resistance trainer is provided having a first magnet that is in proximity to a rotating wheel, and a moveable second magnet that is linked to the first magnet. The first magnet is moved when the rotating wheel rotates and the second magnet is moved closer to the rotating wheel to add a second order effect to the resistance. The trainer is capable of adjusting the first magnet position in relation to the rotating wheel to provide a different relationship of speed to resistance.

Two stage progressive resistance trainer

A collapsible folding training device is provided having a rear frame portion that contains a resistance device. The resistance device uses eddy currents and has a pivoting magnet internally that creates progressively increasing resistance as speed increases. An arm is attached to the rear frame portion that can pivot from a stored position to an in-use position. At the opposite end of the arm, a front frame is attached where it can affix a portion of a driving mechanism, such as a bicycle. The front frame supports and stabilizes the driving mechanism. The arm sets the distance between the front frame and the resistance device.

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South Bend, IN, United States of America

Patrick T Kulwicki