PROBLEM TO BE SOLVED: To provide a capture member that after a frame material inserted from a thin pipe reaches a thick pipe, can smoothly expand its diameter into such a shape as to correspond to an inner periphery of the thick pipe.SOLUTION: Upper end parts 2a of frame materials 2 having flexibility and elasticity cross with each other and are supported to a support member 5, and lower end parts 2b are supported to a rotation support member 8 through a rotation member 9. The rotation support member 8 is driven so as to separate from or approach the support member 5 by a driving member 13. When the rotation support member 8 separates from the support member 5, a diameter of a frame member 1 is contracted to a thickness capable of being inserted into a thin pipe 21 and when the rotation support member 8 approaches the support member 5, the frame member 1 is formed into a substantially circular shape capable of corresponding to an inner periphery of a thick pipe 22.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】細い管から挿入された枠材が太い管に到達した後、円滑に太い管の内周に対応した形状に拡径することができる捕集部材を提供する【解決手段】可撓性と弾性を有する枠材2の上端部2aを互いに交差させて支持部材5に支持し、下端部2bを回動部材9を介して回動支持部材8に支持する。回動支持部材8は、駆動部材13によって支持部材5に対し離隔又は接近するように駆動され、回動支持部材8を支持部材5から離隔させたとき、枠部材1を縮径して細い管21に挿入し得る太さとし、回動支持部材8を支持部材5に接近させたとき、枠部材1を太い管22の内周に対応しうる略円状とするように構成されている。【選択図】 図1
