| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent erroneous display and improve detection precision by regulating movement of a weight by impact other than a fall in a direction to be detected and allowing traveling of the weight by the impact of a fall in a direction which should be detected. <P>SOLUTION: An impact detector 100 includes disk-like weights 520, 530; and moving passages 232, 233 that connect weight-holding sections 234, 235, where the weights 520, 530 are moved and arranged, when impact or force is received at an initial position where the weights 520, 530 are disposed in an initial state, and in the direction of a fall to be detected and have a wall section, where the circumferential face of the weights abuts against for movement. In the impact detector, projections 221, 222, 223, 224, 225, 226 and claws 540, 550 for preventing movement of the weights 520, 530 to impact detection positions, when receiving impact or force other than impact in the direction of a fall to be detected, are disposed within the moving passages 232, 233. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
