Apparatus for cutting circumferential grooves in the tread of a tire
AssigneeCompagnie Generale Des Etablissements Michelin
InventorJean Jarry
Life of this patent
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Abstract
An apparatus for cutting circumferential grooves in the tread of a pneumatic tire comprising at least one assembly formed of a knife whose cutting edge has the shape of the radial profile of the grooves to be created and a support to which the knife is connected and which guides the knife with respect to the pneumatic tire to be treated, the support being connected to a frame for bearing the pneumatic tire, is improved by having the support furthermore comprise a feeler. The depth of cut of the knife is controlled by the feeler which is connected to the support and arranged at a short distance from the knife.
Claims11
An apparatus for cutting at least one circumferential groove in the tread of a tire having at least one ply of metal reinforcing cables below its tread, comprising at least one assembly formed of a knife whose cutting edge has the shape of the radial profile of the grooves to be created and a support to which the knife is connected and which guides the knife with respect to the tire to be treated, the support being connected to a frame for bearing the tire, this apparatus being characterized by the fact that the support furthermore comprises a feeler, said feeler being formed of a detector which is sensitive to the distance between it and said ply, the apparatus furthermore comprising a device controlled by the detector and maintaining the end portion of the cutting edge of the knife at a predeterminable constant distance from said ply.
Dependencies are inferred from the claim text.