METHOD FOR MANUFACTURING SPIRAL TUBE, DEVICE FOR MANUFACTURING THE SAME AND SPIRAL TUBE

Title:

METHOD FOR MANUFACTURING SPIRAL TUBE, DEVICE FOR MANUFACTURING THE SAME AND SPIRAL TUBE

Document Type and Number:

Japanese Patent JP2018020370

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To reliably install a seal material at a joint line of a band material of a spiral tube to stably secure encapsulation performance.SOLUTION: A method for manufacturing a spiral tube 20 for rolling a band material 3 into a spiral shape while jointing both ends of the band material 3 to manufacture the spiral tube 20 rolls the band material 3 into a spiral shape while inserting a string-like seal material 30 into part to be a joint line of both ends of the band material 3 to manufacture the spiral tube 20.SELECTED DRAWING: Figure 1

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Inventors:

YAMAZAKI AKIRA
SAKAI MITSUHISA
SHIBABE NOBUTERU
MINE YOJI
KUBO MASATERU

Application Number:

JP2016154629A

Publication Date:

February 08, 2018

Filing Date:

August 05, 2016

Export Citation:

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Assignee:

KURIMOTO LTD

International Classes:

B21C37/12; B21D11/06; F16L9/16

Domestic Patent References:

JPS5430717U	1979-02-28
JPH06210345A	1994-08-02
JP2004353814A	2004-12-16
JP2009160614A	2009-07-23

Attorney, Agent or Firm:

Maeda patent office

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