| 摘要 |
PROBLEM TO BE SOLVED: To provide a piezoelectric generated light emitting marker to be charged with an existing electronic circuit and subjected to inexpensive switching supply therewith instead of a light emitting circuit, while solving the problem on a conventional piezoelectric generated light emitting marker with a guide track of a weight to be moved as a linear track, when mounted in use on the wheel of a bicycle or a rotator, that force works on the weight to be moved to the end of the linear track to preclude the movement of the weight after moved to the end of the guide track and cause the impossible generation of electric power. SOLUTION: The piezoelectric generated light emitting marker, in which the guide track of the weight has a certain radius of curvature or is curved at a radius of curvature being the same as a distance from a position where it is mounted on the wheel or the rotator to a center of rotation, is used to generate less force on the weight to be moved to the end of the guide track even when centrifugal force works on the weight. A switch is mounted on the track of the weight to be moved. Otherwise, a switch is provided at the end of the guide track of the weight for switching on or off upon collision of the weight to permit inexpensive switching supply with an electronic circuit. |
