Title:
TIRE MOLDING DIE AND TIRE PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/269939
Kind Code:
A1
Abstract:
The present invention provides: a tire molding die (1) which is equipped with an annular tread molding part (20) configured to open and close when a plurality of segments (21) move in the radial direction, and which has a plurality of design-surface split-die sections (23, 24) that are each equipped with a tread design surface (20c) for molding a tread (2c) of a tire (2), are arranged side by side in the circumferential direction of the segments (21), and are configured to turn about a turning axis (26) parallel to the axial line of the tread molding part (20) when the tread molding part (20) is opened after the tire (2) undergoes vulcanization molding; and a tire production method using said die.
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Inventors:
ISHIHARA YASUYUKI (JP)
Application Number:
PCT/JP2021/043044
Publication Date:
December 29, 2022
Filing Date:
November 24, 2021
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B29C33/02; B29C33/26; B29C35/02; B29L30/00
Domestic Patent References:
| WO2003008169A1 | 2003-01-30 |
Foreign References:
| JP2006021357A | 2006-01-26 | |||
| JPS62270308A | 1987-11-24 | |||
| JP2000326332A | 2000-11-28 | |||
| JP2000334740A | 2000-12-05 | |||
| JP2009149079A | 2009-07-09 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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