Title:
BELLOWS PIPE AND MANUFACTURING METHOD OF BELLOWS PIPE
Document Type and Number:
Japanese Patent JP2016061354
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress variation in attenuation performance of a vibration damping layer provided between a metal inner pipe and a metal outer pipe in a bellows pipe and made of a non-metal material.SOLUTION: A vibration damping sheet 140 constituted with expanded graphite as material has ductility smaller than those of a metal inner cylinder 132 and a metal outer cylinder 134, and therefor the vibration damping sheet is not as extended as the metal inner cylinder 132 and the metal outer cylinder 134. Consequently, in the vibration damping sheet 140, tension stress acts in a circumferential direction, and the vibration damping sheet is fractured and divided by a notch 142, thereby to become a belt-like vibration damping material.SELECTED DRAWING: Figure 3
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Inventors:
KISHIDA TOMOYUKI
OGIMURA SHOJI
YUKIMITSU HIDEYUKI
TSUBOSAKA MUNEHIRO
TOICHI SHINNOSUKE
HARA NORIYOSHI
HIGASHIURA YOSHIAKI
OGIMURA SHOJI
YUKIMITSU HIDEYUKI
TSUBOSAKA MUNEHIRO
TOICHI SHINNOSUKE
HARA NORIYOSHI
HIGASHIURA YOSHIAKI
Application Number:
JP2014188929A
Publication Date:
April 25, 2016
Filing Date:
September 17, 2014
Export Citation:
Assignee:
TOYOTA MOTOR CORP
FUTABA IND CO LTD
NIHON BELLOWS IND CO LTD
FUTABA IND CO LTD
NIHON BELLOWS IND CO LTD
International Classes:
F16L9/06; B21D15/10; B21D51/12; B21D51/18
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Hiroshi Fukuda
Kato Kazunori
Hiroshi Fukuda