Tire building drum

Details Tire building drum Tire building drum

1985-02-05

1987-01-13

Boland, Lois E.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Tire body building type

156420, B29D 3026

Patent

active

046362770

ABSTRACT:
A radial collapse tire building drum having a hub, a plurality of axially extending cylindrical body segments disposed around the hub, a first radial support at one axial end of the hub and supporting one axial end of the segments, a second radial support at the other axial end of the hub and supporting the other axial ends of the segments, and a collapsing mechanism disposed within the drum between the first and second radial supports and operable to move the segments either radially outwardly with respect to the hub to form a cylindrical body concentric with the hub, or radially inwardly towards the hub to collapse the cylindrical body of the drum. A main drive shaft is secured to the hub with its axis co-extensive with the hub axis and there is a hollow shaft through which the main drive shaft extends. A drive transmission extends between the circumferentially adjacent, radially extending supports of the first radial support means to provide a drive connection between the hollow shaft and the collapsing mechanism for transmitting rotational movement of the hollow shaft relative to the main shaft to operate the collapsing mechanism.

REFERENCES:
patent: 3485700 (1969-12-01), Cooper et al.
patent: 3779835 (1973-12-01), Lohr et al.
patent: 3785894 (1974-01-01), Ling et al.

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