JPH0259906U

JPH0259906U -

Info

Publication number: JPH0259906U
Application number: JP13925688U
Authority: JP
Priority date: 1988-10-27
Filing date: 1988-10-27
Publication date: 1990-05-01

Description

[Brief explanation of drawings]

第１図および第２図はそれぞれ、本考案の金型
の二つ割りにされた溝成形骨の側面図および横断
面図、第３図は本考案の金型により得られたタイ
ヤのトレツドパターンの１例を示す一部平面図、
第４図は金型の割り位置に対応する位置に形成さ
れたブロツクの部分斜視図、第５図は従来の二つ
割構造の金型によるタイヤ成形状況を示す部分断
面図、第６図は二つ割り金型の溝成形骨のエツジ
部の面取り量と得られたタイヤのトレツド表面に
発生するカツト数との関係を示すグラフである。１…金型、２…溝成形骨、３…タイヤ、１１…
縦溝、１２…横溝、１３…ブロツク、Ｅ…エツジ
部。 FIGS. 1 and 2 are a side view and a cross-sectional view, respectively, of the groove-formed bone cut into two by the mold of the present invention, and FIG. 3 is a tread pattern of a tire obtained by the mold of the present invention. A partial plan view showing one example,
Fig. 4 is a partial perspective view of blocks formed at positions corresponding to the split positions of the mold, Fig. 5 is a partial cross-sectional view showing a tire molding situation using a conventional mold with a two-part structure, and Fig. 6 is a partial perspective view of blocks formed at positions corresponding to the split positions of the mold. 2 is a graph showing the relationship between the amount of chamfering of the edge portion of the groove-formed bone of the two-split mold and the number of cuts generated on the tread surface of the obtained tire. 1... Mold, 2... Groove molding bone, 3... Tire, 11...
Vertical groove, 12...Horizontal groove, 13...Block, E...Edge portion.

Claims

[Scope of utility model registration request]

A tire molding die having a two-split structure in which the groove-forming bone is divided into left and right halves at the position of the groove-forming bone, wherein an edge portion of the groove-forming bone divided into two is chamfered.