Bead setting and ply turnup apparatus

Abstract

Abstract The apparatus disclosed features mechanisms particularly useful in combination with a tire building machine having a plurality of stations, a conveyor, and a plurality of tire building drums movable by the conveyor between the stations wherein a component or components of a complete tire carcass are applied to each building drum. The disclosed mechanism includes a coaxially opposed pair of spindles which support a single tire building drum therebetween, a pair of carriages having bladder turnup assemblies fixed thereon surrounding the spindles for movement coaxially toward or away from the drum. A cylindrical sleeve integral with the carriage supports a sleeve carrying ply turndown fingers and a bead setter sleeve for placing a bead. Both the finger sleeve and the beadsetter sleeve are moved separately and relatively of the carriage and turnup assembly, the latter being movable axially over the fingers to move free ends thereof radially inwardly to form a bead receiving seat in a ply or plies at the shoulders of the building drum. The bead is held by the beadsetter against the seat while the bladder turnup is repositioned and then inflated to wrap the ply endings about the bead.

Inventors

• 👤 Paul E Appleby
• 👤 Denver C Folden
• 👤 Arland A Peck

Bibliographic Details