| 摘要 |
PROBLEM TO BE SOLVED: To individually lock belt tongues respectively inserted from three directions, and to easily and surely mount a seat belt in a buckle for a seat belt to simultaneously unlock the three belt tongues. SOLUTION: In a buckle 10 for a seat belt which can lock belt tongues 5, 6 and 7 respectively inserted into a buckle body in three directions, and simultaneously unlock the three belt tongues 5, 6 and 7 by the pressing operation of a push-button 11, three locking members 14 which can individually lock three belt tongues 5, 6 and 7, and unlock each locked condition by the interference with the push-button 11 to be pressed are respectively and turnably assembled in the buckle body. Three locking elastic members 15 to respectively urge the three locking members 14 in the locking direction, and three pushing elastic members 16 to respectively urge the three belt tongues 5, 6 and 7 in the pushing direction are provided inside the buckle body.
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