Patent ID: 9656436
Date: 2017-05-23
CPC Classifications: B29D,B60C

Claim:
1. A machine for manufacturing a tread portion having tread blocks, the machine defining a machine direction, the machine comprising: a conveying device for transporting a tread portion along the machine direction; and a plurality of molding wheels suspended over said conveying device in a sequential manner along the machine direction, each said molding wheel defining a plurality of apertures for the receipt therein of predetermined locations along the tread portion as the tread portion is conveyed past each said molding wheel, said plurality of apertures having a predetermined depth and shape, the predetermined depth of the plurality of apertures increasing between said molding wheels along the machine direction and each aperture configured with a plurality of walls that surround rubber in the tread portion to create tread blocks having at least one sloped edge face.