JPH0350503U

JPH0350503U -

Info

Publication number: JPH0350503U
Application number: JP11144589U
Authority: JP
Priority date: 1989-09-22
Filing date: 1989-09-22
Publication date: 1991-05-16

Description

[Brief explanation of drawings]

第１，２図は本考案をブロツクパターンのタイ
ヤに適用した第１実施例を示しており、第１図は
平面図、第２図はブロツクの拡大斜視図、第３〜
６図は夫々第１実施例における偏摩耗防止効果と
サイプの各条件との関係を示すグラフで、第３図
はサイプ長さとの関係、第４図はサイプ深さとの
関係、第５図はサイプ厚さとの関係、第６図はサ
イプ間隔との関係を夫々示し、第７図は本考案と
従来技術とにおける偏摩耗の発生とタイヤライフ
との関係を示すグラフ、第８図は本考案をラグパ
ターンのタイヤに適用した第２実施例を示す平面
図である。１……タイヤ、２……トレツド部、４……副溝
、５……陸部、６……サイプ、Ｌ……サイプ長さ
、Ｔ……サイプ深さ、Ｗ……サイプ厚さ、Ｓ１…
…サイプ間隔、Ｓ２……距離。 1 and 2 show a first embodiment in which the present invention is applied to a tire with a block pattern. FIG. 1 is a plan view, FIG. 2 is an enlarged perspective view of the block, and FIG.
Figure 6 is a graph showing the relationship between the uneven wear prevention effect and each sipe condition in the first example, Figure 3 is the relationship with the sipe length, Figure 4 is the relationship with the sipe depth, and Figure 5 is the graph showing the relationship between the uneven wear prevention effect and each sipe condition. Figure 6 shows the relationship between the sipe thickness and sipe spacing, Figure 7 is a graph showing the relationship between uneven wear occurrence and tire life between the present invention and the conventional technology, and Figure 8 shows the relationship between the present invention and the conventional technology. FIG. 3 is a plan view showing a second embodiment in which the method is applied to a tire with a lug pattern. 1...Tire, 2...Tread portion, 4...Sub-groove, 5...Land part, 6...Sipe, L...Sipe length, T...Sipe depth, W...Sipe thickness, S1 …
...Sipe spacing, S2...distance.

Claims

[Claims for Utility Model Registration] A large number of grooves 4 extending at least in the circumferential direction and the axial direction are formed in the tire tread portion 2, and a groove 4 on one side in the circumferential direction is formed in the land portion 5 between each groove 4. In a tire with sipes in which one or more sipes 6A are formed extending from the side to the inland side, one or more sipes 6B are formed in the land portion 5 and extend from the groove 4 side on the other side in the circumferential direction to the inland side, and the sipes 6A on both sides are formed. , 6B has a length L of 3 to 15 mm, a depth T of 0.5 times or more of the groove 4 depth t, and a thickness W of 2.0 mm.
The following describes a tire with sipes, characterized in that the sipe interval S1 and the distance S2 from the axial end of the land portion are set to 0.5 to 2.0 times the width w of the groove 4, respectively.