| 摘要 |
<p>A method of making endless power transmission belts each having at least a toothed outside surface is provided. The method includes building a belt sleeve on a drum. A polymeric material is extruded through an extrusion orifice to define a reusable cylindrical curing jacket having a toothed inside surface around the sleeve with the teeth thereof being disposed adjacent the sleeve. The teeth comprising the toothed surface extend parallel to the longitudinal axis of the jacket. The sleeve is cured with the jacket therearound while the jacket is subjected to pressure. This causes the inside teeth to define corresponding outside teeth on the sleeve. Upon cooling the jacket and sleeve, the jacket is readily removed for reuse, thereby substantially reducing the cost of providing a toothed outside surface on a belt sleeve and belts defined therefrom. The sleeve is then cut to define the belts. This therefore provides a simple and economical method of making endless power transmission belt having a toothed inside surface and a toothed outside surface.</p> |
