Method for curing tires, especially large-size tires

Details Method for curing tires, especially large-size tires Method for curing tires, especially large-size tires

1974-01-14

1976-03-30

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264315, 425 47, B29H 502

Patent

active

039475409

ABSTRACT:
A method for curing tires especially adapted for curing very large-sized or so-called giant tires which have not been generally in such demand as to warrant mass production characterized by holding the curing mold in a stably closed locked condition during the curing process under purely mechanical force in contrast to hydraulic force such as heretofore employed, comprising the steps of placing a mold unit composed of upper and lower mold halves and containing a semi-shaped "green" tire upon a stand of a mechanical press having a plunger mechanism supporting an upper housing member moved by means of a crank gear, driving the crank gear to a first position located ahead of its lower dead center a predetermined amount whereby the plunger mechanism and housing section are smoothly and continuously moved through an arcuate path from a raised position to a lowered position at which the plunger mechanism and housing member are adjacent the upper mold half, adjusting the position of the plunger mechanism relative to the crank gear so that the plunger closely contacts the upper mold half, driving the crank gear to its lower dead center so as to lock the apparatus with an overcenter type locking action, and providing the mold unit with a steam atmosphere for the purpose of heating the mold and curing the tire.

REFERENCES:
patent: 2345838 (1944-04-01), Soderquist et al.
patent: 2358763 (1944-09-01), Soderquist
patent: 2498264 (1950-02-01), Goldhard
patent: 2808618 (1957-10-01), Soderquist
patent: 3262158 (1966-07-01), Von Reimer et al.
patent: 3298066 (1967-01-01), Soderquist

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