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PURPOSE:To reduce the weight of a hydraulic piston by a method wherein a part of the piston of a hydraulic servo is formed by using resin. CONSTITUTION:A hydraulic piston 102 of a hydraulic servo 101 of a direct clutch C2 is formed with a first piston part 102 of an aluminum material, on which an ac...

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Bibliographische Detailangaben
Hauptverfasser:	TSUKAMOTO HIROYUKI, TANIGUCHI TAKUJI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE:To reduce the weight of a hydraulic piston by a method wherein a part of the piston of a hydraulic servo is formed by using resin. CONSTITUTION:A hydraulic piston 102 of a hydraulic servo 101 of a direct clutch C2 is formed with a first piston part 102 of an aluminum material, on which an actuating pressure is exerted directly, and a second piston part 102b formed by using resin, e.g. glass series phenol resin, 6-6 nylon, having oil resistance and heat resistance. A spring support seat 102c having a protrusion to hold orientation of a return spring 103 is formed to the piston part 102b, and positioned on the inner peripheral side of a clutch hub 104. Thereby, the thick section part of the piston 102 is formed by resin, and the weight of the piston 102 are sharply reduced.