Title:
TIRE FORMING MOLD
Document Type and Number:
WIPO Patent Application WO/2021/045038
Kind Code:
A1
Abstract:
This tire forming mold having a simple structure easily opens and closes a plurality of segments for forming a tread portion of a tire. The plurality of segments (5) are biased to the outside (R2) in a tire radial direction (R) by means of a biasing mechanism. The segments (5) each have a first contact part (5B) that comes into contact with an outer ring (6) moving to one side in a tire width direction (W) and a second contact part (5C) that comes into contact with the outer ring (6) moving to the other side in the tire width direction (W). The outer ring (6) has: a first slide portion (6D) with which the first contact part (5B) is slidably in contact and which pushes the first contact part (5B) toward the inside (R1) in the tire radial direction (R); and a second slide portion (6E) with which the second contact part (5C) is slidably in contact and which pushes the second contact part (5C) toward the outside (R2) in the tire radial direction (R).
Inventors:
NIHONGI SATOSHI (JP)
Application Number:
PCT/JP2020/033028
Publication Date:
March 11, 2021
Filing Date:
September 01, 2020
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B29C33/02; B29C35/02; B29L30/00
Foreign References:
| JP2008179046A | 2008-08-07 | |||
| JP2006312251A | 2006-11-16 | |||
| JP2000326332A | 2000-11-28 |
Other References:
See also references of EP 4026687A4
Attorney, Agent or Firm:
NEMOTO, Keiji (JP)
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