Run flat tire safety device on a drop center rim

Details Run flat tire safety device on a drop center rim Run flat tire safety device on a drop center rim

B - Operations, Transporting

60

C

152/71.21

B60C 17/02 (2006.01) B60B 21/12 (2006.01) B60C 15/032 (2006.01) B60C 17/01 (2006.01) B60C 17/06 (2006.01)

Patent

CA 1056284

Abstract of the Disclosure A run flat pneumatic tire on a drop center wheel rim containing an annular support tube in the wheel rim which, in the event the tire goes flat, maintains the beads on their seats and supports the load sufficiently to prevent loss of control and to permit continued operation of the vehicle for a reasonable period. The support tube includes at least on its surface a lubricating composition to reduce friction where the collapsed tire contacts the support tube. The support tube itself can be made resistant to failure from punctures by, for example, having incorporated therein belt reinforcement, and/or having puncture-sealing means such as a puncture sealant layer or particulate puncture sealant, or by having a foamed or solid elastomer filling.

266915

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