| 摘要 |
A belt lock includes a plug ( 20 ) and an attachment ( 30 ) to be detachably attached to the plug ( 20 ). The attachment ( 30 ) includes a belt attaching hole ( 32 ). The plug ( 20 ) is provided with a rail ( 26 ). The attachment ( 30 ) is provided with a groove ( 31 ) to be slidably engaged with the rail ( 26 ). The rail ( 26 ) is provided with a lock section (a recess) ( 27 ). The groove ( 31 ) is provided with a to-be-locked section (a protrusion) ( 34 ) to be engaged with the lock section (the recess) ( 27 ).
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