| 摘要 |
An apparatus and method is provided for grooving tires which is particularly useful for renewing previously used over-the-road tires and which removes a portion of a layer of rubber applied to a tread face of a carcass (C) so as to form on the tread face a predetermined grooved tread design. Relative motion between a heated knife (K0-K7) and the tire carcass (C) is controlled and coordinated in such a manner as to form a particular selected tread pattern, whilst one of the plurality of knives of varying configurations is selected to form particular portions of the grooved design. A programmable memory, preferably, in the form of a digital, electronic central processor unit controls the operation of the components of the apparatus and is programmed to follow particular functional sequences. |
