JPS61159203U

JPS61159203U -

Info

Publication number: JPS61159203U
Application number: JP4306385U
Authority: JP
Priority date: 1985-03-27
Filing date: 1985-03-27
Publication date: 1986-10-02

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例によるタイヤのトレ
ツド踏面に相当する部分の線図的平面展開図、第
２図は第１図のタイヤにおけるサイプの長手方向
縦断面図、第３図は本考案の他の実施例によるタ
イヤの第１図と同様な展開図、第４図は第２図の
タイヤの中央ブロツク列におけるサイプの長手方
向縦断面図、第５図は第２図のタイヤの両側ブロ
ツク列におけるサイプの長手方向縦断面図である
。１０，２０，２１……トレツド要素を画成する
溝、１１……トレツド要素としてのリブ、１２，
２３，２４……サイプ、１２Ａ，２３Ａ，２４Ａ
……サイプの浅い部分、１２Ｂ，２３Ｂ，２４Ｂ
……サイプの深い部分、２２……トレツド要素と
してのブロツク。 Fig. 1 is a diagrammatic plan development view of a portion corresponding to the tread surface of a tire according to an embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view of the sipe of the tire shown in Fig. 1, and Fig. 3 is a main FIG. 4 is a longitudinal cross-sectional view of the sipes in the central row of blocks of the tire of FIG. 2, and FIG. 5 is a developed view of a tire according to another embodiment of the invention, similar to FIG. FIG. 6 is a longitudinal cross-sectional view of the sipes in both side block rows. 10, 20, 21... Groove defining a tread element, 11... Rib as a tread element, 12,
23, 24...Sipe, 12A, 23A, 24A
... Shallow part of the sipe, 12B, 23B, 24B
...Deep part of the sipe, 22...Block as a tread element.

Claims

[Claims for Utility Model Registration] A pair of sidewalls and a tread extending between the sidewalls are connected in a toroidal manner, and the tread is divided into a plurality of tread elements by a plurality of grooves. In a pneumatic tire, at least a portion of the tread element includes a sipe that meets the groove at one or both ends, and the sipe has a shallow portion at the end that meets the groove and a shallow portion in the other inner region. and a deep portion, and the ratio of the depth h ₁ of the shallow portion to the depth h ₀ of the deep portion [(h ₁ /h ₀ )×100]
A pneumatic tire characterized by having a carbon content of about 10 to 50%.