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Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2022/145121
Kind Code:
A1
Abstract:
Provided is a pneumatic tire in which low rolling resistance during high speed travel is further improved and loss of steering stability during high speed travel is further minimized. Provided is a pneumatic tire having a tread section and a belt layer, wherein reinforcing cords in the belt layer are formed by arranging cords composed of monofilaments in an amount of at least 50 cords/5 cm in the tire width direction in a cross section of the belt layer in the radial direction of the tire, and the tire satisfies (formula 1), where Wt (mm) is the cross-sectional width and Dt (mm) is the outer diameter of the tire when attached to a standard rim and set to an internal pressure of 250 kPa.　(Formula 1): 1500 ≤ (Dt2 × π/4)/Wt

Inventors:
MISAKI MOMOKA (JP)
DONG MIAO (JP)
KAWAI HIROKI (JP)
Application Number:
PCT/JP2021/039501
Publication Date:
July 07, 2022
Filing Date:
October 26, 2021
Export Citation:
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Assignee:
SUMITOMO RUBBER IND (JP)
International Classes:
B60C1/00; B60C3/04; B60C9/18; B60C9/20; B60C11/13
Domestic Patent References:
WO2018186367A12018-10-11
Foreign References:
JP2010089727A2010-04-22
JP2015511197A2015-04-16
JP2001334809A2001-12-04
JP2016210388A2016-12-15
JP2017052329A2017-03-16
JP2008156418A2008-07-10
JP2013122038A2013-06-20
JP6769573B12020-10-14
JP2007015638A2007-01-25
JP2018178034A2018-11-15
JP2019089911A2019-06-13
JP2019206643A2019-12-05
US4414370A1983-11-08
JPS596207A1984-01-13
JPH0558005B21993-08-25
JPH01313522A1989-12-19
US5010166A1991-04-23
Other References:
TOAGOSEI ANNUAL REPORT TREND2000, vol. 3, pages 42 - 45
Attorney, Agent or Firm:
JODAI Tetsuji et al. (JP)
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