MEANS FOR ATTACHING A DETACHABLE TREAD TO A PNEUMATIC TYRE

摘要

The invention relates to detachable treads and can be used for lorries and motor cars. A tread device is in the form of an annular cover with alternating projections and depressions on the outside surface and a structure which is similar to the structure of a pneumatic tyre, and comprises a breaker, a cord and a means for fastening the detachable tread to the tyre. A vacuum fastening means consists of two parts - an anchoring base having a housing which is embedded in the body of the tread and has a flange with an overall size equal to or exceeding the size of the cross section of the housing. At its free end, the flange has the shape of any geometrical figure, while the end of the housing is arranged level with the inside surface of the tread or projecting beyond said surface until adjacent to the breaker and a cup-shaped vacuum clip, which is adjacent to the inside surface of the tyre. The anchoring base and the vacuum clip are interconnected. The cavity of the anchoring base has a hermetic sealing means. The vacuum fasteners are arranged at regular intervals from the vertical plane of symmetry of the tyre. The technical effect is more reliable fastening of a detachable tread to a tyre and an increase in the service life of the tyre.