| 摘要 |
The tool has a front (101) and rear (102) ring shaped wire positioned face to face. They are connected to each other by a cylindrical mounting material (7). Intermediate ring shaped wires (12) are arranged at intermediate positions between the end wires. All the wires are elastically bendable. Hooks (13) for traction are formed on some (414,431) of the division points (411,421,431,441) obtained by dividing a circumference of the front wire into four equal parts. The intermediate wires are secured to the mounting material by stitching, adhesion or the like at circumferential positions (513,523,533,543). These correspond respectively to an intermediate position (511) between the division points (411,421), an intermediate position (521) between the division points (421, 431), an intermediate position (531) between the division points (431,441), and an intermediate position (541) between the division points (441,411). |
