| 摘要 |
PROBLEM TO BE SOLVED: To provide a socket which prevents its inlet from dusts and water and also prevents plug inserted into it from casually coming off. SOLUTION: The socket A has an anti-slip-off fixing plate 5 with plug-in blade rest hole 51 bored on top of a blade rest 2, and at same time, an anti- slip-off movable plate 7 is arranged free in dislocation with a plug-in blade insertion hole 71 above the fixing plate 5. In a normal state, the above rest hole 51 and the insertion hole 71 are deviated towards left and right, and on the other hand, the rest hole 51 and the insertion hole 71 are matched in right and left direction by the movement of the movable plate 7 towards left and right, so that the insertion state of the plug-in blades can be maintained by deviation stress between the insertion hole 71 and the rest hole 51. Therefore, a contingency will not happen that the plug should come off casually.
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