Title:
【発明の名称】多重チャネルダクト組立体の製造装置及び製造方法
Document Type and Number:
Japanese Patent JP2003503243
Kind Code:
A
Abstract:
The present invention resides in that a plurality of pre-molded inner ducts are fed to a cross-head die, and a melted outer duct is extruded around the inner ducts from the cross-head die, and then the pre-molded inner ducts and a melted outer duct are supplied into the corrugated tunnel of a molding die in which a melted outer duct is molded to have corrugations, thus producing a multiple channel duct assembly which includes a plurality of elongated inner ducts and a corrugated outer duct which encircles the inner ducts over their entire length to retain them. This method of continuously manufacturing a multiple channel duct assembly by using an extrusion molding machine with a cross-head die and a molding means has not been known heretofore.
Inventors:
Byun, Mu-Won
Application Number:
JP2001507623A
Publication Date:
January 28, 2003
Filing Date:
May 13, 2000
Export Citation:
Assignee:
Byun, Mu-won
International Classes:
B29C48/15; B29C48/30; B29C48/32; B29C48/34; B29C48/88; B29C48/90; H02G9/06; F16L7/00; F16L9/19; G02B6/44; H02G3/04; B29K101/12; B29L9/00; B29L23/00; B29C; F16L; G02B; H02G; (IPC1-7): B29C47/02; B29C47/20; B29C47/88; B29C47/90
Attorney, Agent or Firm:
Shigeru Yagita (2 outside)