Tire lubricating device

In combination, a pneumatic tire, a rim and an annular reservoir member, said tire having an annular road-engaging tread surface, sidewall portions connecting each side of said tread surface to annular bead rings, said rim having an annular drop center area and a rim flange located axially outwardly of said drop center area on both sides thereof, said tire adapted to be mounted on said rim, said annular reservoir member comprising a flexible, annular tube, a continuous, annular, inextensible fastener means, and a hollow valve member, said valve member having a hollow chamber connected to two lateral, hollow end portions, a supporting foot member intermediate said end portions adapted to rest in the drop center area of the rim, a hole intermediate said end portions opposite said foot member, and a breakable member adapted to fit said hole to seal said valve member, the ends of said annular tube connected to said hollow ends of said valve member in sealed relationship to yield a continuous annulus, said fastener means located in said continuous annulus formed by said annular tube and valve member, said fastener means adapted to be tightened to restrict the circumference of said annular tube to constrict said annular tube into gripping relationship with said drop center area of said rim while permitting said tube to retain sufficient axial and radial flexability to permit the beads of said tire to enter the drop center area of said rim during mounting thereon, said annular reservoir member containing a fluid and positioned so that said fluid is retained in said annular reservoir member during normal operation of the tire and said fluid is released into the tire cavity when said tire is run flat to lubricate the inner periphery of said tire by said tire breaking said breakable member in its run-flat operation.