| 摘要 |
<p>This invention provides a molded synthetic resin belt connecting device of the type including a belt attachment member (1) and a fastening member (7) rotatably connected together, wherein a headed pin (31) formed integrally with a rotatable shaft (2) of the belt attachment member (1) and a socket (9) formed integrally with the fastening member (7) are assembled together to form a swivel joint (30) such that a head portion (5) of the headed pin (31) is loosely received in a through-hole (10) in the socket (9), and a neck portion (6) of the headed pin (31) which is smaller in diameter than the head portion (5) is loosely received in a cutout groove (12) at a junction between the cutout groove (12) and the through-hole (10). The belt attachment member (1) and the fastening member (7) are molded of synthetic resin in an assembled condition by a single injection-molding run or cycle. The belt connecting device thus constructed is free from break at a joint portion (30) between the belt attachment member and the fastening member (7) and hence is highly durable in construction and labor-saving in assembly. A method of producing the molded synthetic-resin belt connecting device is also disclosed. <IMAGE></p> |
