B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 45/03 (2006.01) B29C 45/14 (2006.01) B29C 45/26 (2006.01) B29C 45/40 (2006.01) F16D 3/84 (2006.01)
Patent
CA 2477532
There is disclosed a manufacturing apparatus and method which are capable of smoothly removing a tripod boot integrated by secondary molding from a core without deforming the boot and which are superior in manufacturing efficiency and which are inexpensive, and a resin boot for a constant-velocity universal joint. The apparatus includes: divided molds which hold a primarily molded resin boot main body from the outside; a core which holds the boot main body from the inside; a runner mechanism which injects/charges a molten resin material into a secondary molding space formed between the core and an other-end annular fastening portion; and an ejection mechanism for removing the tripod boot in which portions having different thicknesses are integrally and secondarily molded on an inner periphery of the other-end annular fastening portion from the core. The ejection mechanism is provided with a plurality of ejectors in positions avoiding gates of the runner mechanism, and ejecting forces are applied onto lower end surface of the other-end annular fastening portion of the tripod boot from the ejectors to stably and smoothly remove the tripod boot from the core.
Sueoka Kazuhiko
Takada Yasuji
Fukoku Co. Ltd.
Kirby Eades Gale Baker
LandOfFree
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