Patent ID: 6651713
Filing Date: 2003-11-25
Classification: B60C

Abstract:
A tire encircling universal chain for covering a tire having an accessible area and a bearing area, for providing said tire with chain gripping properties, said universal chain comprising:a number of sections of chains adapted to cover said accessible area, each said section comprising an exterior radial chain (30), an interior radial chain (30â€²) and a number of transverse chains (26), means for stiffening said exterior and interior radial chains to provide rigid arches for disposing said section over said accessible area, said rigid arches defining an interior arch (33) and an exterior arch (32), said transverse chains extending from said interior arch (33) to said exterior arch (32), means of attaching a section of said accessible area to an adjoining section, to produce a continuous accessible section, a complementary section (44) for covering said bearing area, said complementary section comprising an interior rigid arch and means to attach to a next section, said complementary section comprising transverse chains (50,51) attached to said interior rigid arch on one end, the other end being loose, said complementary section further comprising a pair of exterior half arches (58,58â€²), in lieu of an exterior rigid arch, each half arch having one end connected to a neighboring section, the two other ends being laid opposite and comprising means to unite and lock, the displacement of an accessible area by moving a vehicle having said tire causing said bearing area to become an accessible area, thereby permitting the attachment of said transverse chains (50,50â€²) to said transverse joints (48,48â€²) and the locking of said half-arches (58) completing the installation of said tire encircling universal chain.