Title:
REAMER AND PIPE PULLER HAVING THE SAME
Document Type and Number:
Japanese Patent JP2017200713
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide: a reamer for expanding the diameter of a hole so that a pipe as wide as a pulled-out pipe can be inserted, and for stably disposing the pipe as wide as the pulled-out pipe; and a pipe puller having the same.SOLUTION: A reamer comprises: a body part comprising a cylindrical part formed with a through hole, and at least three stages of ring-shaped blades around the body part. A pipe puller comprises: a base part; a cylindrical jack part fixed to the base part; a rod-like member penetrating through the jack part, with a pair of attachments attached thereto across the jack part; and a reamer disposed between the pair of attachments, where the reamer comprises a body part comprising: a cylindrical part formed with a through hole, through which the rod-like member penetrates; and at least three stages of ring-shaped blades around the body part.SELECTED DRAWING: Figure 1
Inventors:
KINOSHITA FUKUYUKI
YONEMURA NAOKI
YONEMURA NAOKI
Application Number:
JP2016092851A
Publication Date:
November 09, 2017
Filing Date:
May 03, 2016
Export Citation:
Assignee:
TAIKOH CO LTD
International Classes:
B23D77/14; B23D75/00; E04G23/02
Attorney, Agent or Firm:
Masayoshi Takahashi