ACCUMULATOR DEVICE IN AUTOMATIC TRANSMISSION

PURPOSE:To reduce the weight and simplify the assembly by providing a hollow part for mounting a spring and a groove for mounting a O-ring to an accumulator piston, providing a retainer flange to a retainer, and integrally fixing the accumulator piston and the retainer by means of resin molding. CON...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TSUKAMOTO HIROYUKI, TANIGUCHI TAKUJI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:PURPOSE:To reduce the weight and simplify the assembly by providing a hollow part for mounting a spring and a groove for mounting a O-ring to an accumulator piston, providing a retainer flange to a retainer, and integrally fixing the accumulator piston and the retainer by means of resin molding. CONSTITUTION:An accumulator piston 1 has a hollow part 2 for mounting a spring in the upper part, a hollow part 5 to mount a spring 4 fixed to a retainer 3 in the lower part, and a groove 6 for mounting an O-ring. The accumulator piston 1 is integrated by resin molding, the retainer 3 whereto the spring 4 is locked is meanwhile fixed to a jig at the time of resin molding, and the retainer 3 is fixed to the accumulator 1 simultaneously with resin molding. As a retainer flange 3a is formed in the axial direction of the accumulator piston 1 at this time, the perpendicularity of the spring 4 against the accumulator piston 1 can be secured. Its assembly is simple as above, and weight reduction can be attempted.