Title:
METHOD FOR ENSURING SAFETY INSIDE OF EXISTING PIPE AND SHELTER FOR EXISTING PIPE
Document Type and Number:
Japanese Patent JP2018150999
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a shelter for ensuring safety inside of an existing pipe that is embedded underground.SOLUTION: A shelter body of a shelter 8 is formed cylindrical and includes an opening in at least one end in an axial direction. The shelter body is divided in a circumferential direction and the axial direction. Divided shelter pieces are carried from the ground through a manhole 2a to a bottom of the manhole 2a. The shelter pieces are connected in the bottom of the manhole 2a or inside of an existing pipe 1, such that the shelter 8 is assembled. The shelter 8 is disposed in such a manner that its axial line extends in a length direction of the existing pipe 1. The shelter 8 is used for e.g., a pipe making process, such that a worker inside of the shelter 8 is enabled to support or monitor pipe making work of a pipe making machine 6.SELECTED DRAWING: Figure 1
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Inventors:
KUBO YOSHIHISA
Application Number:
JP2017047670A
Publication Date:
September 27, 2018
Filing Date:
March 13, 2017
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD
International Classes:
F16L1/00; E02B9/06; E02F5/10; F16L1/038; F16L55/18
Domestic Patent References:
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| JPH06136723A | 1994-05-17 | |||
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| JP2006307989A | 2006-11-09 | |||
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| JP2014172315A | 2014-09-22 | |||
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| JP2016065438A | 2016-04-28 |
Foreign References:
| US5031652A | 1991-07-16 | |||
| CN101113801A | 2008-01-30 |
Attorney, Agent or Firm:
Noboru Watanabe
Harada Sanjugi
Tetsumi Aono
Harada Sanjugi
Tetsumi Aono