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Patent Searching and Data


Title:
TIRE
Document Type and Number:
WIPO Patent Application WO/2021/201249
Kind Code:
A1
Abstract:
Provided is a tire that can achieve both dry driving stability and wet driving stability. In a tire meridian cross section, a line that connects, by a single circular arc, a ground contact end positioned at each shoulder land part, a middle point, in the length in the tire-width direction, of a center land part, and a middle point, in the length in the tire-width direction, of each middle land part is defined as a virtual profile. A distance between each intersection point between the virtual profile and extension lines from groove walls, on the center land part side, of circumferential main grooves adjacent to both ends of the center land part in the tire-width direction is defined as Wc. A tire 1 has a structure in which the ends of the center land part and ends of the middle land parts on both sides of the circumferential main grooves are recessed further toward the tire-radial direction inner side than the virtual profile, the amount of recess of the former ends is set greater than that of the latter ends, and a range of 0.03Wc from each of the ends of the center land part on the respective middle land part sides is set not to be in contact with the ground.

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Inventors:
SHIMIZU TSUYOTO (JP)
Application Number:
PCT/JP2021/014222
Publication Date:
October 07, 2021
Filing Date:
April 01, 2021
Export Citation:
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Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B60C11/00; B60C11/03; B60C11/13
Domestic Patent References:
WO2020158265A12020-08-06
Foreign References:
JP2012017008A2012-01-26
JP2011057141A2011-03-24
JP2015048046A2015-03-16
JP2019131080A2019-08-08
EP0305617A11989-03-08
US20110079334A12011-04-07
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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