Title: Tire upper-bead positioning device for use in a curing press

Abstract: Device for centering and positioning the upper bead of a horizontally disposed crude tire around a bead ring provided centrally of the upper, vertically movable portion of the mold in a vulcanizing press of the type comprising a set of radial segments disposed in a central cavity in the upper mold portion, said segments having their operative ends shaped to constitute together a tapered centering member; a vulcanizing bladder is firstly inflated moderately in order to push said upper bead against said tapered centering member, whereafter said segments are allowed to retract radially and rise in said cavity under the bladder pressure until the upper bead is force fitted around the bead ring.

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Inventors: Gazuit, Georges (Montlucon, FR)

Application Number: 736311
Filing Date: 1976-10-28
Publication_date: 1977-08-30
Assignee: Zelant, Gazuit (Montlucon, FR)
Primary Class(es): 425/58 425/33, 425/36, 425/38
Other Classes:
US Patent Ref:

2997738	Aug, 1961	Soderquist	425/38.
3097394	Jul, 1963	Mallory et al.	425/38.
3260782	Jul, 1966	Soderquist	425/38.
3378882	Apr, 1968	Turk et al.	425/38.
3520024	Jul, 1970	Caretta et al.	425/38.
3584335	Jun, 1971	Ulm et al.	425/36.
3809423	May, 1974	Gaquist	425/38.
3846058	Nov, 1974	Yoshida et al.	425/38.
3988077	Oct, 1976	Naratov et al.	425/38.

Other Refs:
Primary Examiner: Flint, Jr., J. Howard
Assistant Examiner:
Attorney: Amster & Rothstein