| 摘要 |
PROBLEM TO BE SOLVED: To provide a small-sized light-weight striking device for a hammering inspection having a small operating sound. SOLUTION: A solenoid 2 is mounted on a frame 3, and a hammer shaft 5 equipped with a hammer head 6 is slidably mounted. A cylinder-shaped spring holder 11 is connected to the actuator shaft 10 of the solenoid, and the hammer shaft is coupled with a stopper 13 stored in the spring holder. The stopper is energized backward by a compression coil spring 15 in the spring holder, and the hammer shaft is held at a contraction position. When the solenoid is driven, the hammer shaft and the hammer head advance together with the actuator shaft, and after a moving core and the actuator shaft has reached the advance end, the hammer shaft and the hammer head advance furthermore; while compressing the compression coil spring, collide with an inspection object, generate a hammering sound, and returns to the initial position by a repulsive force at collision. COPYRIGHT: (C)2005,JPO&NCIPI
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