Spoke Edge Geometry for a Non-Pneumatic Tire

Abstract

A mold for forming a tire for a non-pneumatic or hybrid tire. The mold possesses a telescoping mold core having an angled shut off surface that extends past the cavities and into a mold half and contacts or nearly contacts the mold half on the angled shut off surface which changes the placement and orientation of potential flash.

What is claimed is: 
     
         1 . A mold for forming a spoke for a tire said mold comprising a first mold half, a second mold half, cavities and telescoping cores having an angled shut off surface that extend past the cavities and into a mold half and contact or nearly contact said mold half on said angled shut off surface. 
     
     
         2 . The mold according to  claim 1  wherein the cavities have a radius at their end portion opposite the side of the cavity that is proximate to an angled shut off surface. 
     
     
         3 . The mold according to  claim 1  wherein the cavities have a draft angle and the shut off surface has the same angle. 
     
     
         4 . The mold according to  claim 3  wherein the draft angle is 0.25 degrees. 
     
     
         5 . The mold according to  claim 2  wherein the cavities have a draft angle and the shut off surface has the same angle. 
     
     
         6 . The mold according to  claim 5  wherein the draft angle is 0.25 degrees. 
     
     
         7 . A mold for forming a spoke for a tire said mold comprising a first mold half, a second mold half, cavities and telescoping cores having an angled shut off surface that extend past the cavities and into a mold half and contact or nearly contact said mold half on said angled shut off surface, wherein the cavities have a radius at their end portion opposite the side of the cavity that is proximate to an angled shut off surface and said cavities have a draft angle and the shut off surface has the same angle. 
     
     
         8 . A tire formed by the mold according to  claim 1 .