| 摘要 |
<p>The invention is characterized in that in order to improve tensile strength and draw operability for a two-loop coiled type claming device and to suppress the amount of slack to the minimum necessary, the arrangement is such that when the bore diameter of a clamp band (11) is forcibly contractively deformed by inserting a draw operating tool F between first and second tool engaging teeth (18 and 22) cut up outwardly from the inner and outer overlap portions (11a) and (11b) of the clamp band (11) to engage said tool F with said teeth (18 and 22), a first fixing tooth (17) of raised channel shape cut up outwardly from the inner overlap portion (11a) and a second fixing tooth (21) of recessed channel shape cut up reversely or inwardly from the outer overlap portion (11b) seizure-wise engage each other by a fixed amount L2 through a tool relief reception communication hole (24) in the intermediate overlap portion (11c) interposed therebetween. <IMAGE></p> |
