B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
154/19.2
B29D 30/32 (2006.01)
Patent
CA 1174575
ABSTRACT OF THE DISCLOSURE: A bead bundle positioning mechanism is provided to accurately locate one axial surface of each bead bundle prior to radial expansion of the tire carcass. Each bundle is held by a plurality of circumferentially spaced clamping mechanisms each of which has a pair of clamping elements respectively engaging the axially inner and axially outer surfaces of the bead bundle. The axially inner surface of each bead bundle is located by respective clamp member which are adapted to cooperate with a tire building machine to provide a predeter- mined axial distance between the bead bundles during tire assembly while also maintaining the inner axial surfaces in parallel planes which are normal to the longitudinal axis of the tire building drum. The inner and outer clamping elements are actuated by independent fluid motors. The clamping force exerted by the axially inner clamping element is greater than the clamping force exerted by the axially outer clamping element, to insure that the axially inner surface of the bead bundle is the referenced positioning surface. The inner clamping element interacts with a stop member to establish a predetermined position for the axially inner surface of the bead bundle.
374992
Loeffler Earl F.
Weyand Harley P. Jr.
Firestone Tire & Rubber Company (the)
Robic Robic & Associes/associates
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