Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Tire body building type
Patent
1992-11-04
1994-06-14
Knable, Geoffrey L.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Tire body building type
156417, B29D 3026
Patent
active
053207017
ABSTRACT:
A tire building drum having a plurality of alternating wide and narrow drum segments bearing shells matable to form a cylindrical tire-building surface includes a shaft and concentric hub rotatable relative one another to expand and collapse the drum. In a preferred embodiment, blocks coupled to each respective segment via springs are mounted for bidirectional radial movement in rotationally-fixed relation to the shaft. Links nestable when the drum is collapsed connect the blocks with the hub to drive the blocks radially and function as over-center toggles stabilizing the drum when expanded. Variable-engagement slides associated with the blocks most effectively resist non-radial forces exerted by the links when their relative magnitude is greatest. Dimensional stability and precision of the drum are facilitated by radial and angular stops which are not subject to sliding wear. Pins of different lengths coupling the wide and narrow drum segments to the blocks cooperate with the springs to retract the narrow drum segments first and by a greater distance when collapsing the drum. The springs also cooperate with the radial stops by taking up relative movement between the blocks and drum segments to prevent expansion of the drum at any point during transition to its collapsed condition.
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Brochure: "Eagle Picher Akron Standard Division Cam Drums"-publication date unknown.
Brochure: "Information-Tyre Building Drums and Associated Equipment-WYCO England"-publication date unknown.
Brochure: "WYKO Techical Specifications for REC Tyre Building Drums"-Copyright 1988 Wyco Group PLC.
Brochure: "WYCO R.E.C. Tire Drums"-Publication date unknown.
Brochure: "WYKO Technical Preview of REC Tire Building Drums"-Copyright 1988 WYKO Group PLC.
Brochure: "WYKO Tire Building Drums Inspire Product Confidence"-Publication date unknown.
Beal Lawrence E.
Jellison Frank R.
Illinois Tool Works Inc.
Knable Geoffrey L.
LandOfFree
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