| 摘要 |
PROBLEM TO BE SOLVED: To provide a miniaturizable impact detection device capable of displaying a falling history, in each direction of a plurality of opposite directions.SOLUTION: The impact detection device includes weights 17a, 17b arranged in a case comprising an upper lid 1 and a lower case 10, which are movable respectively corresponding to fall in the front/rear direction; a first display moving route 15a along which either of the weights 17a, 17b is moved by fall in one direction, and a second display moving route 15b, along which the other weight is moved by fall in another direction; a display window 2 which is put into a display state for displaying fall in some falling direction, by displaying the weights 17a, 17b by movement of the weights 17a, 17b along the first display moving route 15a and the second display moving route 15b. The first display moving route 15a partly overlaps with the second display moving route 15b on a domain L on a front projection plane of the case. |
