Rigid-core mold for annular treads intended, in particular, for

Details Rigid-core mold for annular treads intended, in particular, for Rigid-core mold for annular treads intended, in particular, for

1996-12-18

1998-12-22

Mackey, James P.

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...

425 281, 425 35, B29C 3502

Patent

active

058515577

ABSTRACT:
An improved mold (1) for the molding and vulcanizing of annular treads inded, in particular, for the recapping of tires, which includes at least one rigid core (3) defining the inner surface of the tread and a collar (2) divided into sectors (21) which are movable radially between an open position and a closed position of the collar (2) for the molding of the outside of the tread, characterized by the fact that the core (3) bears movable annular elements (5) for the tight connection of the core (3) to the sectors (21) whatever the position of the latter between the closed position of the collar (2) and a slightly apart position of the sectors (21), and that the sectors (21), the core (3), and the annular element (5) define the molding space of the tread.

REFERENCES:
patent: 3974018 (1976-08-01), Arimura et al.
patent: 4181482 (1980-01-01), Grawey et al.
patent: 4448620 (1984-05-01), Fink
patent: 4895692 (1990-01-01), Laurent et al.
patent: 5066448 (1991-11-01), Chlebina et al.
patent: 5269669 (1993-12-01), Ladouce

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