| 摘要 |
A clutch and disc brake friction assembly is provided for use on medium and heavy duty vehicles and includes a metallic shoe having an exposed backing surface provided with a plurality of relatively spaced protuberances projecting therefrom. A sheet metal attachment lamina overlies the backing surface and is provided with a plurality of holes through which the protuberances extend. Subsequent to the distal ends of the protuberance having passed through the holes, they are enlarged thereby affixing the attachment lamina to the backing surface. The attachment lamina has a plurality of openings relatively arranged to form a grid-like configuration. The openings are separated from one another by narrow elongated segments each having a V cross-sectional configuration with the sides thereof diverging from the shoe backing surface. A high temperature adhesive lamina overlies the backing surface and the divergent sides of the narrow elongated segments of the attachment lamina. A friction lamina overlies the adhesive lamina and the attachment lamina whereby the divergent sides of the elongated segments and the adhesive lamina become embedded in the friction lamina.
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