Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Tire body building type
Patent
1991-04-25
1992-11-17
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Tire body building type
156420, 156398, B29D 3026
Patent
active
051640350
ABSTRACT:
A tire building apparatus includes a main hollow shaft, a rotatable screw shaft inserted in the main shaft, a pair of slider units axially movably supported so that upon rotating the screw shaft the slider units move through equal distances toward and away from each other, a pair of support member assemblies expansibly and contractibly supported by the slider units for supporting the bead portions of the green case on radially insides by the support member assemblies when expanded to increase their diameters, a pair of movable blocks axially movably supported to be able to abut against the slider units, a drum core in the form of a ring to surround the main shaft between the slider units, a link mechanism connecting the drum core and the movable blocks for expanding the drum core when the movable blocks move axially inwardly toward each other and contracting the drum core when the movable blocks move axially outwardly away from each other, a pair of stoppers for limiting axially outward movement of the movable blocks when the drum core contracts to its minimum diameter, and a spring for urging the movable blocks axially outwardly.
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Nakajima Tsuneharu
Nakashima Hiroshi
Tokunaga Toshio
Ball Michael W.
Bridgestone Corporation
Lorin Francis J.
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