Air chamber for a tire reinforced security method for manufacturing the air chamber and method for manufacturing the body formed of a reinforcing layer.

摘要

A toric air bag reinforced (2) for a safety tire placed inside a tire (1) and inflated under a certain internal pressure, and deformed by expansion accompanied with the drop of the internal tire pressure to replace a load-bearing tire, in which an annular portion of a toric air bag (6) having an overall configuration of hollow torus is coupled by its outer peripheral side over a full periphery thereof with a reinforcing layer (7) other than the bag air, and said reinforcing layer comprises a narrow strip (14 a rubber compound and fibrous elements spirally wound in a direction widthwise material and has a seamless structure on its periphery.