Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1991-10-10
1994-07-26
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152539, B60C 1302
Patent
active
053320166
ABSTRACT:
A pneumatic tire comprising a pair of beads, and a carcass ply consisting of a main body located axially inside the beads and outer ply portions extending along the main body of the carcass ply axially outside each of the beads. A number of circumferentially spaced recesses are provided in the outer surface of the tire between a radially outer end of each of the outer ply portions and a location corresponding to a maximum width of the tire, and the recesses has a depth equal to 1/10 time to 1/2 time as large as a thickness of those portions of the tire which are provided with the recesses. The inclined angle of a base portion of each of the beads is about 15.degree. relative to the rotary axis of the tire. In the tire, 0.4P.ltoreq.W.ltoreq.0.8P and B.ltoreq.0.06D in which P, B, W and D are a circumferential pitch of the recesses, a minimum distance between the adjacent recesses, a circumferential width of each of the recesses which is obtained by deducting the minimum distance B from the pitch P, and a diameter of a rim base, respectively.
REFERENCES:
patent: D179374 (1956-12-01), Bishop
patent: D207573 (1967-05-01), Ueno
patent: D208615 (1967-08-01), Ueno
patent: D208616 (1967-09-01), Ueno
patent: D208617 (1967-09-01), Ueno
patent: 3400746 (1968-09-01), Heimovics, Jr.
patent: 3452799 (1969-07-01), Hindin et al.
patent: 3983920 (1976-10-01), Gardner et al.
patent: 4185676 (1980-01-01), Raluy
patent: 4201261 (1980-05-01), Bartley et al.
Iida Hiroyuki
Kobayashi Yasuhiko
Koseki Hiroyuki
Tsuruta Makoto
Ball Michael W.
Bridgestone Corporation
Krawczyk Nancy T.
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