Title:
TUBE REMOVING DEVICE
Document Type and Number:
Japanese Patent JP3663076
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To efficiently carry out a drawing work of a tube fixed to a structure by a relatively simple structure.
SOLUTION: A plurality of slant surfaces 25 inclined along a retreat direction of a rod 13 are interspersed in a rotation direction of the rod 13 on a tip end portion of the rod 13 inserted into a tube 6. An engaging member 14 is provided every on a position corresponding to the slant surface 25 by surface contacting the engaging member 14 with the slant surface 25 in the state that a slide in a radial direction is only permitted. When the rod 13 is moved in retreat direction, the engaging member 14 slides in a radial direction by a guide of the slant surface 25 to press-contact to an inner surface of a tube 7. In contrast thereto, when the rod 13 is returned and moved in an advancing direction, a diameter-reducing block 10 urges the engaging member 14 in a direction that it is left from an inner surface of the tube 7 interlocked therewith and for forcedly leaving the engaging member 14 from the inner surface of the tube 7.
Inventors:
Tanimura Hideyuki
Eiji Mori
Toshiharu Tanaka
Eiji Mori
Toshiharu Tanaka
Application Number:
JP10114499A
Publication Date:
June 22, 2005
Filing Date:
April 08, 1999
Export Citation:
Assignee:
Sugino Machine Co., Ltd.
International Classes:
B23P19/04; B25B27/02; F28F11/00; (IPC1-7): B23P19/04; B25B27/02
Domestic Patent References:
| JP55045434U | ||||
| JP10249652A | ||||
| JP2000202781A | ||||
| JP58191968U | ||||
| JP7299673A |
Attorney, Agent or Firm:
Isono Dozo