Plastic article or earthenware shaping or treating: apparatus – Reshaping – resizing or vulcanizing means for tire – tire... – Toroidal or annular female shaping means and coacting means...
Patent
1990-09-05
1992-07-14
Silbaugh, Jan H.
Plastic article or earthenware shaping or treating: apparatus
Reshaping, resizing or vulcanizing means for tire, tire...
Toroidal or annular female shaping means and coacting means...
425 38, 425 39, 425 48, 425 52, 425 58, B29C 3504
Patent
active
051298023
ABSTRACT:
An apparatus for vulcanizing a pneumatic vehicle tire, the beads of which, in a mounted state, are disposed on the radially inner periphery of a wheel rim. A tire blank, with the beads displaced laterally outwardly, is vulcanized using a heating press that is provided with two axially displaceable contour rings for forming the inner regions of the tire beads, and a heating bellows. To facilitate introduction of the tire blank and to protect the heating bellows, it is proposed, for loading the heating press, to axially move the contour rings together, into a position above a vulcanizing position, in such a way that the evacuated heating bellows moves downwardly through a space defined by the lower contour ring. The tire blank is subsequently placed over the contour rings, accompanied by a slight oval deformation of the lower tire bead, and is subsequently fixed on the contour rings by increasing the axial spacing therebetween. At the same time, the heating bellows passes into the interior of the blank. The tire blank is subsequently lowered and vulcanized.
REFERENCES:
patent: 3396221 (1968-08-01), Balle et al.
patent: 3646191 (1972-02-01), Zangl
patent: 4597729 (1986-07-01), Singh et al.
patent: 4670209 (1987-06-01), Nakagawa et al.
patent: 4758401 (1988-07-01), Rach et al.
Hanebuth Klaus
Hoops Klaus
Nadler Heinrich
Sergel Horst
Continental Aktiengesellschaft
Silbaugh Jan H.
Vargot Mathieu
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