| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration sensor of a simple structure which can detect vibrations, shocks or the like with precision, with down-sizing, weight-saving and cost reduction aimed at. SOLUTION: A conductive pattern 6 consisting of a center pattern 7 with a number of first segment patterns 8 formed in all directions and a circular pattern 9 with a number of second segment patterns 10 formed in all directions surrounding the center pattern 7 and interposed between each two first segment patterns 8 at an inner periphery part is formed on a printed wiring board 2. A cover member 4 covering the conductive pattern 6 and housing a vibration-sensing ball body 3 consisting of a conductive globe inside is fitted to the printed wiring board 2. The vibration-sensing ball body 3 rolls on the conductive pattern by vibrations or the like given a main body equipment 5, and short-circuit the adjacent first segment pattern 8 and the second segment pattern 10 to send out a detection signal. COPYRIGHT: (C)2005,JPO&NCIPI
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