Title:
【発明の名称】タイヤのエアチューブ及びその製造方法
Document Type and Number:
Japanese Patent JP2001523607
Kind Code:
A
Abstract:
A low-section tire includes an air tube including an internal wall and two air tube sidewalls. The internal wall comprises a greater rigidity than the tube sidewalls so that, when a carcass and the tube are mounted on a rim, and during inflation, the tube sidewalls contact the carcass sidewalls no later than the internal wall contacts a crown portion of the carcass. A process for manufacturing the air tube includes moulding two tube sidewalls separated from each other, moulding a central core, arranging the tube sidewalls and central core in a single vulcanization mould, closing the vulcanization mould to form the tube, feeding pressurized fluid into at least two distinct circumferential portions of the tube, and vulcanizing the tube to join the central core and tube sidewalls. A mould for manufacturing the an air tube includes two axially-external cheeks, two axially-intermediate male dies, and two axially-inner spacers.
Inventors:
Caretta, Renato
Federico Mancos
Federico Mancos
Application Number:
JP2000520979A
Publication Date:
November 27, 2001
Filing Date:
November 10, 1998
Export Citation:
Assignee:
Pirelli Pneumaticich Sochieta Per Azioni
International Classes:
B29C33/02; B29C35/02; B29C45/00; B29C69/00; B29D23/24; B29D30/06; B60B21/02; B60C5/00; B60C5/04; B60C5/08; B60C5/20; B60C5/22; B60C15/00; B60C15/02; B60C15/05; B60C15/06; B60C17/00; B60C17/01; B60C17/02; B60C19/00; B29C35/00; B29C65/00; B29K21/00; B29K105/24; (IPC1-7): B60C17/02; B29C33/02; B29C35/02; B29D30/06; B60C5/04; B60C17/00
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)