Title:
タイヤ加硫金型の製造方法
Document Type and Number:
Japanese Patent JP7175753
Kind Code:
B2
Abstract:
To suppress a deterioration of appearance and exhaust efficiency when arranging a vent piece on a step part of a molding surface.SOLUTION: A tire vulcanizing mold 50 including a plurality of molds 51 to 55 for molding a pneumatic tire 1 has a molding surfaces 51a to 55a including a plurality of step part 56, 57 corresponding to a shape of an outer surface of the pneumatic tire 1, and an outer surfaces 51b to 55b that are spaced apart from the molding surfaces 51a to 55a. At least one of the plurality of molds 51 to 55 is provided with a vent hole 60 penetrating from the molding surface 52a to the outer surface 52b so as to correspond to the step part 56 and 57, a cylindrical vent piece 61 attached to the molding surface 52a side of the vent hole 60, and a notch 62 provided on the molding surface 52a side of the vent piece 61 so as to follow a shape of the step part 56 and 57.SELECTED DRAWING: Figure 4C
Inventors:
Hiroyuki Furuya
Application Number:
JP2018245535A
Publication Date:
November 21, 2022
Filing Date:
December 27, 2018
Export Citation:
Assignee:
TOYO TIRE Co., Ltd.
International Classes:
B29C33/02; B29C35/02
Domestic Patent References:
| JP2002527262A | ||||
| JP2014076575A | ||||
| JP2018114668A | ||||
| JP2016124148A | ||||
| JP2010094905A | ||||
| JP2018089849A | ||||
| JP2002234033A |
Foreign References:
| US20170361552 |
Attorney, Agent or Firm:
Yamato Kento
Yoshiyuki Maebori
Yoshiyuki Maebori