Patent ID: 8051752
Filing Date: 2011-11-08
Classification: A63B,Y10T

Abstract:
1. An exercise machine comprising: a base; an axle rotationally supported on the base; two cranks connected to the axle so that the cranks are rotational synchronously with the axle; a drive wheel unit comprising an active wheel provided on the axle so that the active wheel is rotational synchronously with the cranks; a passive wheel unit comprising a load wheel and a passive wheel, wherein the load wheel is supported on the axle so that the load wheel is rotational relative to the axle, and wherein the passive wheel is coaxially connected to the load wheel so that the passive wheel is rotational synchronously with the load wheel; and a step-up device comprising a shaft rotationally supported on the base and small and large wheels coaxially connected to the shaft so that the small and large wheels are rotational synchronously with the shaft, wherein the small wheel is operatively connected to the active wheel with a belt for transmitting power to the small wheel from the active wheel so that the small wheel is rotational with the active wheel, wherein the active wheel and the small wheel are pulleys, and wherein the large wheel is operatively connected to the passive wheel so that the passive wheel is rotational with the large wheel.