Radially expandable tire forming drum

Details Radially expandable tire forming drum Radially expandable tire forming drum

1992-08-27

1993-04-20

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Tire body building type

156414, B29D 3024

Patent

active

052039471

ABSTRACT:
A tire forming drum includes a plurality of main segments arranged around a main shaft of the drum and rotatable together with the main shaft. The main segments are reciprocatingly radially movable toward and away from the main shaft to adjust the diameter of the drum and have circular arc surfaces, respectively, on which a tire constituent member is wrapped. The tire forming drum further includes subsegments having plural circular arc surfaces, respectively, to conform to change on diameter of the drum. The subsegments are arranged between the main segments to be movable to fill clearances occurring between the adjacent segments in response to the movements of the main segments.

REFERENCES:
patent: 3178331 (1965-04-01), Bishop et al.
patent: 3817812 (1974-06-01), Yabe
patent: 3873398 (1975-03-01), Yokoo et al.
patent: 3888720 (1975-06-01), Habert
patent: 3948717 (1976-04-01), Suzuki et al.
patent: 4547251 (1985-10-01), Landsness
patent: 4772351 (1988-09-01), Thompson et al.

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