JPS61115706U

JPS61115706U -

Info

Publication number: JPS61115706U
Application number: JP14682585U
Authority: JP
Priority date: 1985-09-25
Filing date: 1985-09-25
Publication date: 1986-07-22

Description

[Brief explanation of the drawing]

第１図ａ乃至ｄは実験に使用した各々のタイヤ
のトレツド踏面の模様を示す踏面部分展開図、第
２図は転動抵抗の測定方法を示す概略側面図、第
３図は実験結果による有効接地面積指数と転動抵
抗との関係を示すグラフ、第４図及び第５図は有
効接地面積指数を示すための参考図であり第４図
ａは踏面部分展開図、ｂはａのＳ_１―Ｓ_１断面図
、第５図ａは踏面部分展開図、ｂはａのＳ_２―Ｓ
_２断面図、第６図ａはこの考案の実施例及び比較
例に使用したタイヤトレツドの踏面模様を示す展
開図、同ｂは比較例に使用したタイヤトレツド踏
面模様を示す展開図である。１……ドラム、２……試験タイヤ、３……ドラ
ム回転軸、４……リム、５……タイヤ支持軸。 Figures 1 a to d are partially exploded views of the tread pattern of each tire used in the experiment, Figure 2 is a schematic side view showing the method for measuring rolling resistance, and Figure 3 is the effective results of the experiment. A graph showing the relationship between the ground contact area index and rolling resistance. Figures 4 and 5 are reference figures for showing the effective ground contact area index. Figure 4 a is a partially developed view of the tread, and b is _S1 of a. - S ₁ sectional view, Figure 5 a is a partially developed view of the tread, b is a S ₂ -S
₂ sectional views, FIG. 6a is a developed view showing the tread pattern of the tire tread used in the embodiment and comparative example of this invention, and FIG. 6b is a developed view showing the tread pattern of the tire tread used in the comparative example. 1... Drum, 2... Test tire, 3... Drum rotating shaft, 4... Rim, 5... Tire support shaft.

補正昭６１．１．２９図面の簡単な説明を次のように補正する。明細書第１３頁第１５行目の「参考」の記載を
削除する。Amendment January 29, 1981 The brief description of the drawing is amended as follows. The description of "Reference" on page 13, line 15 of the specification is deleted.

Claims

[Claims for Utility Model Registration] (1) A carcass arranged across a pair of bead parts, a breaker arranged at the crown part of the carcass, an annular tread part, and communication from both ends of the tread part, respectively. In a high-load pneumatic tire having a pair of side parts, the viscoelastic properties of the tread rubber constituting the tread part have a loss modulus of 2 Kg/cm ² to 6 Kg/cm ² and a loss compliance of 0. .5×10 ⁻³ cm ² /K
g to 2.0×10 ⁻³ cm ² /Kg, and the pattern of the tread surface of the tread portion is set so that the effective ground contact area index is within the range of 0.80 to 0.90. A high-load pneumatic tire characterized by the following: (2) The high-load pneumatic tire according to claim (1), wherein the breaker is at least two intersecting highly rigid plies, and the carcass has a radial structure. (3) The high-load pneumatic tire described in claims (1) and (2), wherein the carcass has a radial structure consisting of at least one metal cord.