| 摘要 |
<p>A buckle for a seat belt is disclosed. A lock plate (15) is arranged movably back and forth on an upper surface of a buckle latch piece (11) and is loosely received at both lateral ends thereof in a pair of through-holes (16) formed in a pair of opposing upright side wall portions (10) of a buckle base (8). The paired through-holes (16) include on front sides thereof constricted hole portions (16a) in which lateral end portions of the lock plate (15) lie while an associated tongue is latched in the buckle (4). Upper edges (29') of the constricted hole portions (16a), said upper edges being located on a side opposite to the base plate portion (9) relative to lower edges of the constricted hole portions (16a), extend obliquely relative to the base plate portion (9) whereby the distances between the upper edges (29') and the base plate portion (9) increase as rear ends of the upper edges (29') are approached. <IMAGE></p> |
