Title:
MULTILAYER PIPE, MANUFACTURING METHOD AND MANUFACTURING DEVICE FOR MULTILAYER PIPE
Document Type and Number:
Japanese Patent JP2004344951
Kind Code:
A
Abstract:
To inexpensively obtain a multilayer pipe which has a bent part excellent in appearance.
The multilayer pipe 3 is at least composed of an inner pipe 1 and an outer pipe 2. A fibrous filler 4 is arranged between the inner pipe 1 and the outer pipe 2 at a pipe bending part of the multilayer pipe 3. A bending liquid is filled into the inside of the multilayer pipe 3 and then frozen. The pipe is bent at the filler arranged part in a liquid frozen state.
Inventors:
NAKAJIMA TOMOYUKI
TASHIRO YOJI
YOSHINO TAMIO
TASHIRO YOJI
YOSHINO TAMIO
Application Number:
JP2003146001A
Publication Date:
December 09, 2004
Filing Date:
May 23, 2003
Export Citation:
Assignee:
YAMAHA MOTOR CO LTD
International Classes:
F01N13/08; B21C37/06; B21D9/00; B21D9/15; B21D9/16; B21D53/84; (IPC1-7): B21D9/00; B21D9/15; B21D9/16; F01N7/08
Attorney, Agent or Firm:
Toshio Tsuruwaka