Drum lifting device

Details Drum lifting device Drum lifting device

1986-03-28

1988-10-25

Simmons, David

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Tire body building type

156415, B29D 3026

Patent

active

047801700

ABSTRACT:
A tire building machine that allows for free axial movement of positioned beads towards a tire drum during expansion of the tire drum. The axial movement of the bead is effected by a rubber sleeve that envelops the tire drum and a pair of bead carrier assemblies, each one located axially outwardly of the drum. Subsequent to positioning the bead in a tire building process, the beads are locked into place by means attached to each of the bead carrier assemblies. Expansion of the drum causes the sleeve to effect inwardly axial movement of the bead carrier assemblies toward the drum carrying the tire beads towards the drum, and retraction of the drum causes outwardly axial movement of the bead carrier assemblies away from the drum.

REFERENCES:
patent: 4007081 (1977-02-01), Mallory
patent: 4290472 (1981-09-01), Bryant

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