Lamp device for bicycle |
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| 申请号 | JP25239786 | 申请日 | 1986-10-22 | 公开(公告)号 | JPS63107446A | 公开(公告)日 | 1988-05-12 |
| 申请人 | Norio Akamatsu; | 发明人 | AKAMATSU NORIO; | ||||
| 摘要 | PURPOSE:To simplify the structure and to produce a device inexpensively, by serving a wheel of a bicycle as a body of rotation of a magnet. CONSTITUTION:A lamp device for a bicycle is fixed to a magnet 1 secured to a rotating wheel and is also fixed to a frame close by without touching the rotating locus of this magnet 1. It is composed of a generator coil 2 which generates electricity by electromagnetic induction caused by flux variation in passing the magnet and of a luminant 3 with which the light is turned ON when connected to this coil 2. The magnet 1 is U-shaped as a whole and fixed to two spokes 5 of the wheel through a clamp 4. Since the magnet 1 is fixed to the wheel while the generator coil 2 to the frame in this way and no moving elements are there, the structure is so simplified that mass production is possible inexpensively. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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