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    • 34. 发明公开
    • Composite tool handle and method of making same
    • Zusammengesetzter Griff und Verfahren zur Herstellung。
    • EP0531667A1
    • 1993-03-17
    • EP92112172.9
    • 1992-07-16
    • Carmien, Joseph Allen
    • Carmien, Joseph Allen
    • B29D31/00B29C70/52B25G1/10
    • B29D99/0046B25G1/10B29C37/0082B29C43/222B29C70/504B29C70/525B29C70/70B29D15/00B29L2031/06B29L2031/283Y10S16/18Y10S16/902Y10T16/44Y10T156/1737
    • A high strength composite tool handle (10) includes one or more load-bearing jackets surrounding a lightweight filler core (26) or a relatively strong reinforcing core (28). The facing surfaces between the core and the jackets are corrugated to increase the flexural strength of the tool handle while minimizing the weight of materials. The composite tool handle is manufactured in a pultrusion manufacturing process wherein a core having a corrugated external surface is fed into a pultrusion die tube. Resin coated fibers (32) are channeled into the space between the core and the die tube where the fibers are compressed and heated to form a cured product. The resin coated fibers (32) around the core form a fiber-resin jacket having an inner surface which conforms to the corrugated external surface of the core, to key-lock the jacket (30) to the core. A continuous mold insert belt (52) may be inserted into the pultrusion die tube (40) simultaneously with the resin coated fibers (32) to provide a corrugation on the external surface of the cured fiber-resin jacket (30). A secondary jacket is then molded onto the fiber-resin jacket over the external corrugations thereof such that an inner surface of the secondary jacket conforms to the corrugated external surface of the fiber-resin jacket to key-lock the secondary jacket to the fiber-resin jacket. The secondary jacket may include both a reinforcing tip (20) molded onto the fiber-resin jacket (30) to strengthen the handle at its attachment to a tool head, and a grip molded onto the fiber-resin jacket adjacent to the reinforcing tip (20).
    • 高强度复合工具手柄(10)包括围绕轻质填料芯(26)或相对较强的加强芯(28)的一个或多个承载套。 芯和夹克之间的相对表面是波纹状的,以增加工具把手的弯曲强度,同时最小化材料的重量。 复合工具手柄是在拉挤成型制造工艺中制造的,其中具有波纹状外表面的芯体被输送到拉挤模具管中。 将树脂涂覆的纤维(32)引导到芯和模具管之间的空间中,在该空间中纤维被压缩和加热以形成固化产物。 芯周围的树脂被覆纤维(32)形成纤维树脂护套,其具有与芯的波纹状外表面一致的内表面,以将护套(30)锁定到芯上。 可以将连续的模具插入带(52)与树脂涂覆的纤维(32)同时插入拉挤模具管(40)中,以在固化的纤维 - 树脂护套(30)的外表面上提供波纹。 然后将次级护套在其外部波纹上模制到纤维树脂护套上,使得次级护套的内表面符合纤维树脂护套的波纹状外表面,以将次级护套键锁定到纤维树脂 夹克。 次级护套可以包括模制在纤维树脂护套(30)上的加强末端(20),以在其与工具头的连接处加强手柄,以及模制在邻近加强尖端的纤维树脂护套上的手柄 20)。