Pneumatic tire for heavy duty vehicles

Details Pneumatic tire for heavy duty vehicles Pneumatic tire for heavy duty vehicles

1978-08-28

1980-09-23

Goolkasian, John T.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

D12143, D12146, 152330A, 152354RB, B60C 1108, B60C 1106

Patent

active

042237122

ABSTRACT:
A pneumatic tire for heavy duty vehicles comprises a tread divided by two circumferential zigzag grooves in a tread center zone including block patterns of elongated blocks circumferentially discontinuous with traverse grooves and side zones including circumferentially continuous ribs. The traverse grooves are provided in their mid portions 30-70% of their lengths with platforms making the grooves shallower 30-70% than their original depths. The pattern of the tread converts into a pattern of ribs formed by the circumferential zigzag grooves having branch grooves when the tread has worn more than 30-70%. The tire including the above tread pattern according to the invention is suitable for both use on paved hard roads and weak grounds.

REFERENCES:
patent: D89393 (1933-03-01), Gilbert
patent: 3584670 (1971-06-01), Verdier

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