| 摘要 |
PROBLEM TO BE SOLVED: To provide an accessory stopper which can match and separate a releasing arm by drawing chains connected by a pair of stopper constituting bodies connected by magnetic attracting force into a tensing direction. SOLUTION: When a pair of stopper constituting bodies are rotated around a projecting shaft as the center axis by drawing chains respectively connected to the stopper constituting bodies into a tensing direction to arrange the chains in an identical straight line when a pair of stopper constituting bodies are mutually attracted by magnetic force, releasing arms respectively equipped on the stopper constituting bodies are projected so as to make supplementary angles against the straight line. The one pair of releasing arms are mutually pressed to separate the stopper constituting bodies against magnetic force. When an abutting piece is equipped, unexpected separation of stopper constituting bodies can be prevented.
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