Expandable tire building drum

Details Expandable tire building drum Expandable tire building drum

1989-05-05

1990-12-11

Woodard, Joye L.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Tire body building type

156415, 156420, B29D 3024, B29D 3032

Patent

active

049768042

ABSTRACT:
A segmental drum (1) has a plurality of circumferentially spaced drum segments (28) radially movable by a set of links (36) pivotally connected to a pair of axially movable hub assemblies (34) slidably mounted on a drum shaft (12). Each of the segments (28) has a cylindrical center portion (30) and end portions (32) with recesses providing pockets (68) for the tire bead portions. The links (36) are positioned between the end portions (32) providing space for large bead portions in the pockets (68) and at the same time the segments (28) are retractable to a small diameter to facilitate placing of a tire band (64) over the drum (10).

REFERENCES:
patent: 3644162 (1972-02-01), Appleby et al.
patent: 3867231 (1975-02-01), Casey
patent: 4010058 (1977-03-01), Kubinski et al.
patent: 4220494 (1980-09-01), Kawaida et al.
patent: 4226656 (1980-10-01), Appleby et al.
patent: 4521269 (1985-06-01), Ozawa

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