Method of loading green tire on a bladderless tire vulcanizer

Details Method of loading green tire on a bladderless tire vulcanizer Method of loading green tire on a bladderless tire vulcanizer

1995-02-21

1997-01-28

Knable, Geoffrey L.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

264326, 425 36, 425 38, 425 58, B29D 3000

Patent

active

055974295

ABSTRACT:
A method of loading a green tire on a bladderless tire vulcanizer of the inside gripping type and an apparatus thereof, in which both bead portions of the green tire can be inserted into respective bead rings of a mold accurately and reliably.
The constitution is such that, on a bladderless tire vulcanizer having a pair of upper and lower pressing members 8 and 9 in opposition to the upper and lower bead rings of tire molds and capable of being expanded and shrunken to mold the inner surfaces of the bead portions of the tire, a green tire is supplied to a position above a lower mold 4 from above the shrunken pressing members 8 and 9 while the inside of the upper bead portion of the green tire is gripped; the pressing members 8 and 9 are interposed between the upper and lower beads of the green tire whose upper bead portion is gripped; the pressing members 8 and 9 are expanded radially; the gripping of the green tire is released; the green tire is shifted to the pressing members 8 and 9; the pressing members 8 and 9 are lowered; and the lower bead portion of the green tire is seated on the lower bead ring 5 portion of the lower mold.

REFERENCES:
patent: 3659975 (1972-05-01), Leblond
patent: 4236883 (1980-12-01), Turk et al.
patent: 4600370 (1986-07-01), Kaneko et al.
patent: 5127811 (1992-07-01), Trethowan
patent: 5395150 (1995-03-01), Imler et al.

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