| 摘要 |
PROBLEM TO BE SOLVED: To hinder the generation of persistent bending, buckling or the like in a flexible pipe by preventing a space from being produced between the base end of a brush shaft and the tip of a core wire even when the flexible pipe is bent. SOLUTION: In this brush, a brush shaft 21 provided protrusively with a bristle 2 is mounted at a slender flexible pipe 1. A core wire 12 provided separately from the brush shaft 21 is inserted into the flexible pipe 1 along the overall length thereof. In this case, the tip of the core wire 12 is fixed on the flexible pipe 1 while being almost brought into contact with the base end of the brush shaft 21. |
