| 摘要 |
PURPOSE: Indoor bike for limb exercise is provided wherein pedal and handle are worked together to move pedal and handle at the same time so that it helps users to take leg and arm exercise together. CONSTITUTION: In the indoor bike for limb exercise which contains a pedal(20), a wheel(40), a saddle(50) and a first chain(70), the indoor bike is characterized by comprising the parts of: a sprocket(40a) which is placed in a rotation axis of a wheel(40) and connected to a crank(40c) and a handle support(100); a sprocket(120a) which is inserted at both sides of a rotation axis(120) and fixed by a fixed tool(120c); a second chain(70a) which is worked together with the wheel; and a handle(30) which is placed at one side of a rotation axis and rotated by connecting a sprocket(150a) through a third chain.
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