JPH0241802U

JPH0241802U -

Info

Publication number: JPH0241802U
Application number: JP12045788U
Authority: JP
Priority date: 1988-09-16
Filing date: 1988-09-16
Publication date: 1990-03-22

Description

[Brief explanation of drawings]

第１図は本考案タイヤのトレツド面に設けるブ
ロツクの形状おらび配置状態を示す部分斜視図、
第２図イは第１図のＡ―Ａ′線における断面図、
第２図ロは第１図のＢ―Ｂ′線における断面図、
第２図ハはブロツク部分の斜視図、第３図ａ，ｂ
，ｃ，ｄ，ｅ，ｆ，ｇ，ｈ，ｉ，ｊ，ｋ，ｌおよ
びｍは本考案タイヤのブロツク壁面に設ける鋸歯
状凹凸の他の例を示す平面図である。１……主溝、２……副溝、３……ブロツク、４
，４′……ブロツク壁面、５，５′……鋸歯状凹
凸。 FIG. 1 is a partial perspective view showing the shape and arrangement of blocks provided on the tread surface of the tire of the present invention;
Figure 2A is a sectional view taken along line A-A' in Figure 1;
Figure 2B is a sectional view taken along line BB' in Figure 1;
Fig. 2 c is a perspective view of the block part, Fig. 3 a, b
, c, d, e, f, g, h, i, j, k, l, and m are plan views showing other examples of sawtooth-like unevenness provided on the block wall surface of the tire of the present invention. 1... Main groove, 2... Minor groove, 3... Block, 4
, 4'...Block wall surface, 5, 5'... Serrated unevenness.

Claims

[Claims for Utility Model Registration] (1) In a pneumatic tire having a large number of blocks partitioned by a main groove in the circumferential direction of the tire and a sub-groove that crosses the main groove, the sub-groove side of the block along the width direction of the tire. 1. A pneumatic tire characterized by having sawtooth-like irregularities formed on a wall surface having dimensions represented by the following formulas (1) to (3) and substantially parallel to a tread surface. (1) H=1/5D to 9/10D, (2) t≦1/5L, (3) S≧1/2W. [In the above formula, H is the length of the sawtooth unevenness from the block surface, t is the depth of the sawtooth unevenness, S is the width of the sawtooth unevenness, D is the depth of the minor groove, and L is the tire circumferential direction of the block. The length W is the length (width) of the block in the tire width direction. (2) The groove according to claim 1, wherein the side wall surface of the main groove has dimensions expressed by the following formulas (4) to (6) and is provided with sawtooth irregularities in a direction substantially perpendicular to the tread surface. pneumatic tires. (4) H'=1/3D' (5) t'≦1/5L, (6) S'≧1/2W. [In the above formula, H' is the length of the sawtooth unevenness from the block surface, t' is the depth of the sawtooth unevenness, S' is the width of the sawtooth unevenness, D' is the depth of the main groove, and L is the block surface. W is the length of the block in the tire circumferential direction, and W is the length (width) of the block in the tire width direction. ]