Standing well post type center mechanism in tire press

Details Standing well post type center mechanism in tire press Standing well post type center mechanism in tire press

1989-09-29

1990-08-21

Hoag, Willard

Plastic article or earthenware shaping or treating: apparatus

Reshaping, resizing or vulcanizing means for tire, tire...

Means shaping drum shaped preform to tire casing shape

425 36, 425 48, 425 52, 425 58, B29C 3500

Patent

active

049501410

ABSTRACT:
Disclosed herein is a standing well post type center mechanism in a tire press which comprises a bladder well disposed vertically liftably in the center of the tire press, the bladder well comprising a bead ring at the upper end thereof, an upper clamp ring assembly for holding the upper end of a bladder, the upper clamp ring assembly disposed concentrically with the bladder well and being vertically liftable independently of the bladder well, and a lower clamp ring assembly concentrical with the upper clamp ring assembly and vertically liftable independently of the bladder well and the upper clamp ring assembly, wherein an air cylinder for lifting the upper clamp ring assembly is disposed liftably in the bladder well, the upper clamp ring assembly is fitted to the upper end of a piston rod in the air cylinder, the lower clamp ring assembly is fitted to the upper end of the air cylinder, and the lower end of the air cylinder is constrained engageably and disengageably through a stopper.

REFERENCES:
patent: 2730763 (1956-01-01), Brundage
patent: 4486162 (1984-12-01), Hasegawa et al.
patent: 4846649 (1984-07-01), Hasegawa et al.

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