Title:
TIRE FOR CONSTRUCTION VEHICLE
Document Type and Number:
WIPO Patent Application WO/2008/029563
Kind Code:
A1
Abstract:
A tire for a construction vehicle, in which a rise in temperature at a tread portion
is suppressed by enhancing heat radiation properties at a tire center portion.
Lug grooves (22) are provided in tread shoulder regions S on both sides in the width
direction of the tire. Also, the tire has, in a tire center portion C, narrow grooves
(24) extending substantially in the tire width direction V and having both ends
terminating within the tread. Furthermore, the tire has a deep equator groove
(26) extending in the tire circumference direction on a tire equator surface
CL and having a maximum depth in the range of 70 to 110% of the depth of thelug groove
(22). Consequently, the bottom (26B) of the deep equator groove (26) in high temperature
can be cooled efficiently.
Inventors:
KUROISHI, Kazuya (Technical Center 3-1-1, Ogawahigashi-cho, Kodaira-sh, Tokyo 31, 1878531, JP)
黒石 和哉 (〒31 東京都小平市小川東町３－１－１ 株式会社ブリヂストン 技術センター内 Tokyo, 1878531, JP)
黒石 和哉 (〒31 東京都小平市小川東町３－１－１ 株式会社ブリヂストン 技術センター内 Tokyo, 1878531, JP)
Application Number:
JP2007/064818
Publication Date:
March 13, 2008
Filing Date:
July 27, 2007
Export Citation:
Assignee:
BRIDGESTONE CORPORATION (10-1, Kyobashi 1-chomeChuo-ku, Tokyo 40, 1048340, JP)
株式会社ブリヂストン (〒40 東京都中央区京橋１丁目１０番１号 Tokyo, 1048340, JP)
KUROISHI, Kazuya (Technical Center 3-1-1, Ogawahigashi-cho, Kodaira-sh, Tokyo 31, 1878531, JP)
株式会社ブリヂストン (〒40 東京都中央区京橋１丁目１０番１号 Tokyo, 1048340, JP)
KUROISHI, Kazuya (Technical Center 3-1-1, Ogawahigashi-cho, Kodaira-sh, Tokyo 31, 1878531, JP)
International Classes:
B60C11/117; B60C11/03; B60C11/04; B60C11/13
Attorney, Agent or Firm:
SUGIMURA, Kenji et al. (36F Kasumigaseki, Common Gate West3-2-1, Kasumigaseki,Chiyoda-ku, Tokyo 13, 1000013, JP)