Ply down assembly for tire building machine
AssigneeNRM Corporation
InventorGerald J. Yuhas
Life of this patent
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Abstract
A tire building machine utilizes a ply-down and bead set assembly in which an array of axially projecting spring fingers are used. The fingers are secured between two nested rings which are constructed to interfit with each other and with each finger so that each finger may be inserted or removed without affecting adjacent fingers. One of the rings has projections interfitting with the fingers in their normal position and one of the rings may be locally deformable to assist in the insertion and removal of the fingers.
Claims22
A ply down assembly for a tire building machine comprising a metal L-shape ring including an axially extending leg, a plastic ring secured to said metal ring and including an axially extending surface cooperating with said axially extending leg, spring fingers secured between said leg and said surface, said ring including finger retaining means which permit removal or insertion of said fingers upon flexure of said fingers without disassembly of said plastic and metal rings.
A ply down assembly for a tire building machine comprising a pair of concentric rings, an array of spring fingers secured between and projecting generally axially from said pair of rings, radially extending projections extending from one of said rings interfitting with said fingers, one of said rings including deformable means permitting each finger to be bent to clear the interfitting projection for insertion in and removal from said assembly.
A ply down assembly for a tire building machine comprising a pair of concentric radially nested inner and outer rings, an array of spring fingers secured between and projecting axially from said pair of rings, one of said rings projecting axially beyond said other ring and including radial projections interfitting with said fingers, the radial extent of said projections and the axial distance of said projections from the said other ring permitting said fingers to be flexed adjacent said rings to clear said projections for individual insertion and removal.
Dependencies are inferred from the claim text.