发明授权
- 专利标题: Pneumatic radial tire with four main grooves
- 专利标题(中): 气动子午线轮胎,四个主槽
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申请号: US80128申请日: 1993-06-23
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公开(公告)号: US5435364A公开(公告)日: 1995-07-25
- 发明人: Hirotsugu Hasegawa , Yutaka Kuroda , Nobuaki Minami
- 申请人: Hirotsugu Hasegawa , Yutaka Kuroda , Nobuaki Minami
- 申请人地址: JPX Kobe
- 专利权人: Sumitomo Rubber Industries, Ltd.
- 当前专利权人: Sumitomo Rubber Industries, Ltd.
- 当前专利权人地址: JPX Kobe
- 优先权: JPX2-415943 19901228
- 主分类号: B60C11/03
- IPC分类号: B60C11/03 ; B60C11/04 ; B60C101/00 ; B60C103/04 ; B60C111/00
摘要:
A pneumatic radial tire comprises four main grooves, shoulder lateral grooves (g1L, g1R), middle lateral grooves (g2L, g2R) and central lateral grooves (g3L, g3R); the central lateral grooves (g3L) on one side of the tire equator being circumferentially shifted from the central lateral grooves (g3R) on the other side of the tire equator; the middle lateral grooves (g2L, g2R) shifted from the central lateral grooves (g3L, g3R) towards a circumferential direction (D); the shoulder lateral grooves (g1L, g1R) shifted from the middle lateral grooves (g2L, g2R) towards the circumferential direction (D); the total (WG) of the axial widths (WG1, WG2) of the four main grooves being 0.25 to 0.32 times the ground contacting area width (W); on each side of the tire equator, the width (W) and the total (LG1+LG2) of the axial length (LG1) measured from the ground contacting area edge (SE) to the axially inner edge of the shoulder rib (RS) and the axial length (LG2) measured from the ground contacting area edge (SE) to the axially inner edge of the middle rib (RM) satisfying the following relation: 0.44.ltoreq. (LG1+LG2)/W.ltoreq. 0.50.
公开/授权文献
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