Winding unit for forming a toroidal carcass for a road vehicle t

Details Winding unit for forming a toroidal carcass for a road vehicle t Winding unit for forming a toroidal carcass for a road vehicle t

1996-12-18

1998-08-25

Knable, Geoffrey L.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Tire body building type

156117, B29D 3034

Patent

active

057980187

ABSTRACT:
A winding unit (14) for forming a toroidal carcass (1) by winding a textile cord (5) in a spiral about a toroidal frame (7) defined by two coaxial annular beads (2) and by a removable annular element (9) located outwards of the beads (2) to define, with the beads (2), two annular openings (11); the unit (14) presenting a plate element (16) releasably connectable to the annular element (9), and a sprocket chain (27) supporting a spool (43) for the cord (5), and movable continuously, along a groove (25) formed on the plate element (16) and defining an endless path (P), to form a toroidal reticulated structure (4) about the annular element (9) and the beads (2); the endless path (P) presenting a C-shaped branch (P1) extending, in use, about the annular element (9), and an omega-shaped branch (P2) extending about a hole (21) for the passage of a respective bead (2), about the annular element (9), and through the two annular openings (11).

REFERENCES:
patent: 3057396 (1962-10-01), Hanson
patent: 4052237 (1977-10-01), Appleby et al.
patent: 5308432 (1994-05-01), Siegenthaler
patent: 5453140 (1995-09-01), Laurent et al.

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