Expandable drum including adjustable stops for setting drum circ

Details Expandable drum including adjustable stops for setting drum circ Expandable drum including adjustable stops for setting drum circ

1992-04-21

1993-11-23

Knable, Geoffrey L.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Tire body building type

156414, 279 213, B29D 3024

Patent

active

052640680

ABSTRACT:
Apparatus for forming an annular product features in such arrangement that, around a drum shaft sheathing over a main shaft, tapering structures each having axial slidability are provided, and in response to a slide move of the tapering structure, drum segments are each radially expanded or retracted. A stopper for controlling a slide move of the tapering structure is provided and an axial position of the stopper is regulated by a motor through a ball screw mechanism disposed in the main shaft. Thereby, settings and changes of a circumferential length of the drum which determines the length of the annular product are easily made and can be made with great certainty.

REFERENCES:
patent: 3178331 (1965-04-01), Bishop et al.
patent: 3207648 (1965-09-01), Shilts
patent: 3873398 (1975-03-01), Yokoo et al.
patent: 3929546 (1975-12-01), Katagiri et al.
patent: 5066354 (1991-11-01), Benjamin

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