Title:
ジョイントブーツの製造方法及びこの方法に用いる加熱装置
Document Type and Number:
Japanese Patent JP3876366
Kind Code:
B2
Abstract:
A method of producing joint boots in such a manner as to mold a bellows section with uniform thickness, comprising the steps of forming a cylindrical parison (15) from molding material, the parison comprising a first portion (12) corresponding to a larger diameter-side attaching section (2), a second portion (13) corresponding to a smaller diameter-side attaching section (4), and a third portion (14) connecting the two portions (12, 13), heating only the third portion (14) of the first, second, and third portions to a set temperature by a heating device (B), thereafter covering the third portion with an outer mold (51), blowing gas to the inner peripheral surface of the third portion, and pressing the third portion against the outer mold to mold a bellows section (5).
Inventors:
Katsushi Saito
Takeshi Oshita
Imazu Eiichi
Takeshi Oshita
Imazu Eiichi
Application Number:
JP2006514050A
Publication Date:
January 31, 2007
Filing Date:
October 25, 2004
Export Citation:
Assignee:
TOYO TIRE & RUBBER CO.,LTD.
International Classes:
B29C49/64; B29C49/06; F16D3/84; F16J3/04; F16J15/52; B29L31/26
Domestic Patent References:
| JP2003222155A | ||||
| JP1250673A | ||||
| JP2003329057A |
Foreign References:
| EP0915264A2 |
Attorney, Agent or Firm:
Tamako Tsutada
Masato Tsuda
Tetsuji Nakamura
Katsuyuki Tomita
Masato Tsuda
Tetsuji Nakamura
Katsuyuki Tomita