| 摘要 |
PROBLEM TO BE SOLVED: To provide a bicycle using a drum hanger (circular disc hanger) instead of a conventional hanger shaft, realizing increase of propulsion force by rotation force of circular movement with a chain wheel interlocked with the hanger and reducing loss of bodily strength. SOLUTION: (1) The drum hanger (circular disc hanger) having a large diameter of large circumference is used. (2) An enlargement bottom frame for storing the drum hanger is used. (3) Peripheries of the drum hanger and the chain wheel are made same. (4) The drum hanger and the chain wheel are connected/fixed by a joint arm. (5) A left crank is fixed to a position near an outer periphery of the drum hanger and a right crank is fixed to a position near an outer periphery of the chain wheel. However, they are positioned at an opposite position relative to the crank of the drum hanger. COPYRIGHT: (C)2007,JPO&INPIT
|
