| 摘要 |
PROBLEM TO BE SOLVED: To surely turn a light on before falling furniture and falling articles from shelves, and to prepare an alarm clock with a built-in light for detecting earthquake and turning on at a pillow side always using in sleep, so as to surely obtain light in the darkness during blackout against a shock of large earthquake occurrence at midnight. SOLUTION: The outlook and structure of an alarm clock 2 is made a tumbler type which easily swing but never keep falling. At its bottom, a push switch is assembled which turns on a light 6 when whole clock is shaken by repeating ON and OFF by the self-weight and setting the timer and the timer goes off after a few minutes if the shaking terminates and the timer becomes off and the light 6 goes off. |
