HEADER FOR PIPE RENEWING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a header for a pipe renewing device without stopping advancing at a joint part of an existing pipe. SOLUTION: This header 4 comprises a partition part 22 having a new pipe 6 connected at a rear part to be pulled inside an existing pipe 10 buried in the ground while enlarging the diameter of it, and has a percussion part 31 to give impact to the partition part 22, and impact is given from the percussion part 31 through the partition part 22 to the existing pipe 10.