The Goodyear & Tire Rubber Company

Robert Albert Lammlein

John R White

A method of cutting an elastomeric strip of material is described. The method includes the step of advancing a strip of materiala predetermined distance by a conveyor means. Resisting reverse movement of the strip; tensioning the strip; and cutting simultaneously across the entire width of the stripthrough the thickness of the stripon a skive angle of 45 degrees or less preferably about 28 degrees to form a cut length of material thereby relaxing the tension in the strip as the skive cut endsandmove apart. This method of cutting can be accomplished by providing an apparatusfor cutting an elastomeric strip of materialwhich has a frame assembly, a motorized feed conveyormounted onto the framefor advancing the strip material, a cutter assemblymounted on the frame assemblyincluding a guillotine cutteroriented to move along a skive angle &#x3b1;, a second conveyor meansfor supporting the strip, the second conveyor meanshaving rollershaving a one way directional movement in the forward direction resistant to movement in the reverse direction; a motorconnected to the feed conveyorto drive the conveyorin an advancing direction and having a reverse tensioning direction; and wherein the cutter assemblyis positioned between the second conveyor meansand the feed conveyorto cut the stripafter a tension is applied to the strip by reverse motion of the feed conveyor

Tire component cutter apparatus and method of cutting

A method and apparatus for making a preassembly of built in sealant useful in tire manufacturing. The method of making the preassembled sealant includes extruding a center strip and at least two axially outer strips of a sealant onto a first conveyor belt; wherein the center strip and the axially outer strips are in a side by side adjacent relationship. Conveying the center strip onto a second conveyor while the axially outer strips are conveyed on the first conveyor belt towards the end of the belt, wherein the center strip has two outer edges, wherein a divider strip is applied to each other edge in a continuous manner, wherein the center strip is then conveyed onto the axially outer strips and then stitched together forming a preassembled component.

Method and apparatus for building a puncture sealant preassembled component

An annular wedge suitable for use in a tire bead assembly preparation apparatus. The annular, resilient, flexible, compressible wedge has a generally T-shaped axial cross-section with an outer head portion, an inner trunk portion and an inner-connecting throat portion with a generally triangular cross-section therebetween, and a continuous reinforcing annular textile fabric strip integral with said head, throat and trunk portions, said wedge being of a continuous structure having a core of especially prepared microcellular polyurethane and an outer densified relatively smooth skin.

Wedge for tire bead assembly apparatus

A tire bead assembly of a bead core, apex and gum tie strip is made by laying the gum tie strip about a non-inflatable annular member of triangular cross-section and across the slant surface of the member. The apex is wrapped then about the tie strip and about the slant surface of an annular inflatable bag. After the core is pressed coaxially on the tie strip so as to indent the member and thus preform the tie strip, the bag is inflated to turn the apex and underlying tie strip about the core and against an annular forming member to shape the assembly suitably for the tire carcass in which it is to be inserted. A bladder is then inflated to wrap the tie strip on the second side of the core and apex. The member bridges the gap between the adjacent edges of the bag and the bladder. An apparatus for carrying out the steps is also described. The resulting bead assembly is tightly cohered and free of wrinkles and air pockets. The foregoing abstract is not to be taken as limiting the invention of this application, and in order to understand the full nature and extent of the technical disclosure of this application, reference must be made to the accompanying drawing and the following detailed description.

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Akron, OH, United States of America

Robert Albert Lammlein