Automatic light on-off method for bicycle lamp and device thereof |
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| 申请号 | JP11456389 | 申请日 | 1989-05-08 | 公开(公告)号 | JPH02293228A | 公开(公告)日 | 1990-12-04 |
| 申请人 | Toshio Hiyoshi; | 发明人 | HIYOSHI TOSHIO; | ||||
| 摘要 | PURPOSE:To eliminate dynamo load as well as to secure safety by forming a dynamo in attaching a coil to a front fork and permanent magnet to a spoke respectively, generating electromotive force without fail during travel, and charging a storage battery at daytime and feeding a head lamp and a tail lamp at night. CONSTITUTION:A dynamo 6 is made up of installing a coil 11 in a front fork and a permanent magnet 12 in a spoke 9 respectively. In addition, a light detector 3, a charger 7, a storage battery 5 and a voltage comparator 13 are connected to a head lamp 1, and a travel detector 4 is attached to a stand 10. At time of traveling at daytime, the travel detector 4 comes on when the stand 10 is raised, and the light detector 3 comes off and the voltage comparator 13 is turned to the side of the storage battery 5 in design. If travel takes place, the comparator 13 is turned to the side of the dynamo 6 so that the battery 5 is charged. At night, the light detector comes on, and the comparator 13 exists at the side of the battery 5, whereby the head lamp 1 and a tail lamp 2 are lighted by the battery 5. During travel at night, electromotive force is produced in the dynamo 6 with the wheel rotation, and the comparator 13 is turned to the side of the dynamo 6, thus the head lamp is lighted by the dynamo 6. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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