Emergency track ring for pneumatic vehicle tires
AssigneeVorwerk & Sohn GmbH & Co. KG
InventorHermann Stein
Life of this patent
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Abstract
An emergency track ring for a tubeless pneumatic tire comprising a bottom reinforced flange for mounting the ring on such a tire rim. At least one opening is formed in the ring to permit air to be admitted to the interior of the tire. Groove means are formed in the ring for filling with a lubricating material, and sealing lips close the groove means and seal the lubricant therein when the tire is mounted on said rim and under pressure. Flange means are integrally formed with the sealing lips and extend upwardly for engagement by the inside of the tire cover during loss of air, the depressing of the flange means effecting a lever action which causes the sealing lips to move so as to open the grooves and permit and lubricating material to be released to reduce friction between the tire cover and the track ring.
Claims10
An emergency track ring for a tubeless pneumatic tire adapted to be mounted on a tire rim, comprising
- (a) a bottom reinforced flange for mounting the ring on such rim,
- (b) at least one opening in said ring to permit air to be admitted to the interior of the tire,
- (c) groove means formed in said ring adapted to be filled with a lubricating material,
- (d) sealing lips closing said groove means and sealing said lubricant therein when said tire is mounted on said rim and under pressure,
- flange means integrally formed with said sealing lips and extending radially upwardly with respect to said sealing lips for engagement by the inside of the tire cover during loss of air,
- said sealing lips and flange means being formed and arranged such that when said flange means are depressed, lever action causes said sealing lips to move so as to open said grooves and permit said lubricating material to be released to reduce friction between said tire cover and said track ring.
Dependencies are inferred from the claim text.