Resilient tires and wheels – Tires – resilient – Anti-skid devices
Patent
1994-09-13
1996-06-11
Maki, Steven D.
Resilient tires and wheels
Tires, resilient
Anti-skid devices
B60C10100, B60C10900
Patent
active
055246869
ABSTRACT:
A heavy duty tire having an improved tread wear resistance, which comprises a tread portion provided on each side of the tire equator with a wide circumferential groove and a narrow circumferential groove. The wide circumferential groove is spaced apart from the tire equator by an axial distance of 15 to 25% of the tread width. The narrow circumferential groove is disposed on the axially inside of the wide circumferential groove and spaced apart from the axially inner groove edge of the wide circumferential groove by an axial distance of 0.02 to 0.05 times the tread width. The depth of the wide circumferential groove is in the range of 0.05 to 0.08 times the tread width. The depth of the narrow circumferential groove is in the range of 0.7 to 1.0 times the depth of the wide circumferential groove. The groove width of the narrow circumferential groove is in the range of 1.5 to 2.5 mm.
REFERENCES:
patent: 3831654 (1974-08-01), Boileau
patent: 4230512 (1980-10-01), Makino et al.
patent: 4282914 (1981-08-01), Takigawa
patent: 4353402 (1982-10-01), Burche et al.
patent: 4515197 (1985-05-01), Motomura et al.
patent: 5345988 (1994-09-01), Kabe et al.
Takada Yoshiyuki
Yasufuku Keiji
Maki Steven D.
Sumitomo Rubber Industries Ltd.
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