| 摘要 |
PROBLEM TO BE SOLVED: To provide a button that can be easily and firmly attached and replaced by anyone without using a needle and thread. SOLUTION: This fastener comprises two components, i.e., (joint attachment 2 plus spring 3), and a cruciform stopper 1; the cruciform stopper is inserted from the top of the joint attachment inserted in a button hole 5 and is rotated by 90 degrees to firmly fix it. A button portion comprises a conventional button and a lower lock spring and is mounted in place from the top of the joint attachment by means of the resiliency of the lock spring.
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