JPS59172004U

JPS59172004U - Tire tread structure

Info

Publication number: JPS59172004U
Application number: JP6738383U
Authority: JP
Inventors: 河野　忠夫; 角丸　一夫
Original assignee: 住友ゴム工業株式会社
Priority date: 1983-05-04
Filing date: 1983-05-04
Publication date: 1984-11-17
Also published as: JPH057041Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図ａは溝の部分平面図、リブの隣接溝内に突出する
領域即ち凸部１、ジグザグ溝がリブ内に突出する領域即
ち凹部２を示し、ｂはＡ−Ａ’断　　　　゛面図を示す
。第２図は溝壁角と軌道摩耗及び石かみ頻度との関係を
図示する。第３図ａは第３図すのＡ−Ｅ各側面図に示す
溝壁角を有する試料による石かみ個数（指数）を示す。第３図Ｊは本考案実施例（凸部７°／凹部２０°）を示
す。１・・・・・・リブ、２・・・・・・溝。補正　昭５８．１０．５図面の簡単な説明を次のように補正する。明細書第６頁１３行目に［第３図すは各溝壁の　　　　
゛形状断面図を示す」を挿入する。Fig. 1a is a partial plan view of the groove, showing a region of the rib protruding into the adjacent groove, that is, a convex portion 1, and a region of the zigzag groove protruding into the rib, that is, a concave portion 2; shows. FIG. 2 illustrates the relationship between groove wall angle and raceway wear and rock-cutting frequency. FIG. 3a shows the number of stones (index) for samples having the groove wall angles shown in the side views A to E of FIG. 3. FIG. 3J shows an embodiment of the present invention (convex portion 7°/concave portion 20°). 1...Rib, 2...Groove. Amendment October 5, 1982 The brief description of the drawing is amended as follows. Page 6, line 13 of the specification [Figure 3 shows each groove wall]
Insert ``Show shape cross-section''.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

（１）周方向に伸びる連続又は不連続のジグザグ溝を有
し、かつこの溝がトレッド巾の５０％以内の踏面に位置
するタイヤに於いて、リブが隣接溝内に突出する領域で
の溝壁角度を最少とし、ジグザグ溝がリブ内に突出する
領域での溝壁角度を最大とし、かつ溝開口部の溝角αと
底部の溝壁角βの関係をα〉βとすることを特徴とする
トレッド溝断面形状。(1) In a tire that has continuous or discontinuous zigzag grooves extending in the circumferential direction, and in which these grooves are located on the tread surface within 50% of the tread width, the grooves in the area where the rib protrudes into the adjacent groove The wall angle is minimized, the groove wall angle in the region where the zigzag groove protrudes into the rib is maximized, and the relationship between the groove angle α at the groove opening and the groove wall angle β at the bottom is α>β. The cross-sectional shape of the tread groove.

（２）　　リブが隣接する溝内に突出する領域での溝壁
角α１を５°〜１５°とし、ジグザグ溝かりブ内に突出
する領域での溝壁角α２を１５°〜３０°とする実用新
案登録請求の範囲第１項記載のトレッド溝断面形状。(2) The groove wall angle α1 in the area where the rib protrudes into the adjacent groove is 5° to 15°, and the groove wall angle α2 in the area where the rib protrudes into the zigzag groove is 15° to 30°. A tread groove cross-sectional shape according to claim 1 of the utility model registration claim.

（３）　　角α、βによる溝壁の不連続点の高さは溝深
さの３０〜７０％とする実用新案登録請求の範囲第１項
記載のトレッド溝断面形状。(3) The tread groove cross-sectional shape according to claim 1, wherein the height of the discontinuous point of the groove wall due to the angles α and β is 30 to 70% of the groove depth.