Central mechanism of tire vulcanizer

Details Central mechanism of tire vulcanizer Central mechanism of tire vulcanizer

1991-03-14

1992-09-22

Hoag, Willard

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 49, 425 51, B29C 3500, B29C 3700

Patent

active

051495457

ABSTRACT:
According to a central mechanism of a tire vulcanizer of the present invention, in a central mechanism of a tire vulcanizer in which a lower clamp ring holding a lower end portion of a bladder is fixed detachably to a lower ring having a passage of a vulcanizing medium, key-shaped holes are bored on the lower clamp ring, springs which press clamp rods which penetrate through the lower ring downward and a fluid pressure cylinder which pushes up the clamp rods against the spring force are provided, and the clamp rods are pushed up so as to release fixing of the lower clamp ring, and the lower clamp ring is removed by rotating the lower clamp ring by a predetermined angle from a state in which the lower clamp ring and the lower ring are fixed to each other by having nuts fixed at the upper ends of the clamp rods engaged with the key holes. Accordingly, the replacement operation of the bladder is automated, thus making it possible to improve the operation rate.

REFERENCES:
patent: 1440495 (1923-01-01), Richards et al.
patent: 2559119 (1951-07-01), Frank
patent: 3790656 (1974-02-01), Getz
patent: 4013389 (1977-03-01), MacMillan
patent: 4022554 (1977-05-01), MacMillan
patent: 4545750 (1985-10-01), Sarumaru
patent: 4631014 (1986-12-01), Drewel et al.
patent: 4846649 (1989-07-01), Hasegawa et al.
patent: 4863360 (1989-09-01), Chuchanis
patent: 4950141 (1990-08-01), Maikuma et al.

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