Compact driving and resistance device for stationary bikes
OwnerYi-Yen Cheninventor
Life of this patent
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Abstract
A driving and resistance device for stationary bikes includes a frame including two boards between which a flywheel is located, a shaft extends through the flywheel and the two boards. A driving wheel is mounted to the shaft and drives the flywheel. The driving unit includes a first belt, a second belt, an idle wheel unit, an intermediate wheel unit and a passive wheel, the passive wheel is connected to a sleeve which is secured to the shaft. The driving wheel is driven by rotating the cranks on two ends of the shaft and the first belt, the intermediate wheel unit, the second belt, the passive wheel, the sleeve and the flywheel are driven in sequence. Because the driving wheel and the flywheel share the same shaft so that the driving and resistance device is compact.
Claims10
A driving and resistance device for stationary bikes, comprising:
- a frame including two boards and a shaft extending through the two boards, two cranks connected to two ends of the shaft;
- a flywheel connected to the shaft, and
- a driving unit including a driving wheel mounted to the shaft and driving the flywheel, the driving unit further including a first belt, a second belt, an idle wheel unit, an intermediate wheel unit and a passive wheel, the passive wheel connected to a sleeve which is secured to the shaft in a first direction, the driving wheel being driven by rotating the cranks and the first belt, the intermediate wheel unit, the second belt, the passive wheel and the sleeve and the flywheel being driven in sequence;
- wherein the idle wheel unit includes two adjustment rods, two idle wheels and two side rods, the two adjustment rods extend through two extensions extending from the two boards and are connected to the two idle wheels, the two idle wheels include two axes which movably extend through slots defined through the two boards and the two axes are connected to the two adjustment rods respectively.
Dependencies are inferred from the claim text.