Title:
TIRE VULCANIZATION MOLD APPARATUS
Document Type and Number:
WIPO Patent Application WO/2017/168886
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a tire vulcanization mold apparatus that is capable of eliminating problems such as defective contact between a segment and a fixed mold due to segment wear or attrition, and improper degrees of contact due to changes in mold dimensions, as well as automatically maintaining a good quality of contact between the segment and fixed mold without repeating the laborious process of replacing an adjustment sheet numerous times. The apparatus is provided with: a plurality of segments 40, a fixed mold 30 disposed to the radial directional inside of the segments 40, and a jacket ring 20 disposed to the radial directional outside of the segments 40. The jacket ring 20 is divided into two to yield a combination of a first jacket ring 20a and a second jacket ring 20b, and a biasing spring 70 is interposed between the jacket rings 20a and 20b. Improper degrees of contact between the segments 40 and the fixed mold 30 caused by the segments 40 pressing radially inward as the jacket ring 20 moves are automatically adjusted for due to the biasing force imparted by the biasing spring 70.
Inventors:
ISHIKO SEIJI (JP)
Application Number:
PCT/JP2016/088404
Publication Date:
October 05, 2017
Filing Date:
December 22, 2016
Export Citation:
Assignee:
SHINKO MOLD IND CO LTD (JP)
ISHIKO SEIJI (JP)
ISHIKO SEIJI (JP)
International Classes:
B29C33/02; B29C35/02
Domestic Patent References:
| WO2005007376A1 | 2005-01-27 |
Foreign References:
| JP3188434U | ||||
| JP2009226611A | 2009-10-08 | |||
| JP3197505U | 2015-05-21 | |||
| JP2000127173A | 2000-05-09 |
Attorney, Agent or Firm:
MUROTA Rikio et al. (JP)
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