| 摘要 |
<p>PURPOSE:To prevent removal of connected appliance by slightly recessing the upper face of a trapezoid formed by two adjoining waves of a corrugated pipe having waves on its outer periphery thereby holding the resilient recovery force of a hooking chip fixed to the appliance. CONSTITUTION:An appliance 2 is contacted with the ridge section 3 and the root section 4 formed on the outer circumference of a corrugated pipe 1. A hooking chip 13 comprising a resiliently deformable section 11 and a click 12 is fixed to the base section 10 on the inner circumferential face then the click 12 is engaged with the root section 4 in order to prevent removal of the corrugated pipe 1 from the appliance 2. Upper face of a trapezoid 5' formed by two continuous ridge sections 3 of the corrugated pipe 1 is slightly recessed 5a' and a name plate is stuck thereto. By such arrangement, resilient recovery force of the resilient deformable section 11 is maintained even upon contact of the click 12 with the trapezoid 5' resulting in prevention of fall off of the corrugated pipe 1 due to aging.</p> |
