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    • 2. 发明公开
    • AUTOMATIC TRANSMISSION
    • AUTOMATIKGETRIEBE
    • EP2241776A1
    • 2010-10-20
    • EP09808088.0
    • 2009-08-21
    • Aisin AW Co., Ltd.
    • KITO, MasashiNISHIDA, MasaakiKATO, HiroshiTOKUNAGA, Norihiro
    • F16D25/0638F16D25/12F16H57/02
    • F16H57/08F16D25/0638F16D25/10F16H3/663F16H3/666F16H63/3026F16H2057/087F16H2200/006F16H2200/0086F16H2200/2023F16H2200/2048
    • An automatic transmission (11) includes a bicylindrical member (50) in which an inner cylinder portion (50a) and an outer cylinder portion (50c) are integratedly formed through a flange portion (50b), and which forms a portion of a clutch drum of a third clutch (C3). The inner cylinder portion (50a) structures a first base portion in which a piston (43) of a fourth clutch (C4) slides, and the outer cylinder portion (50c) structures a second base portion in which a piston (33) of the third clutch (C3) slides. An end portion (50d) of the outer cylinder portion (50c) is provided extending so as to run through a clutch drum (42) of the fourth clutch (C4), and the clutch drum (42) is restricted from detaching by a snap ring (51). The clutch drum (42) also contacts and supports a cancel plate (34), and is supported by the outer cylinder portion (50c). The clutch drum (42) is thus supported more toward an outer perimeter side, and even if the clutch drum (42) is subject to a centrifugal hydraulic pressure of a cancel oil chamber (37), deformation can be suppressed.
    • 一个自动变速器(11)包括一个圆柱形构件(50),其中内圆柱体部分(50a)和外圆柱体部分(50c)通过凸缘部分(50b)整体形成,并形成一个离合器鼓 的第三离合器(C3)。 内筒部(50a)构成第一基部,第四离合器(C4)的活塞(43)滑动,第二离合器(C4)的活塞(43)滑动,外筒部(50c)构成第二基部, 第三离合器(C3)滑动。 外筒部(50c)的端部(50d)设置成延伸穿过第四离合器(C4)的离合器鼓(42),离合器鼓(42)被限制 环(51)。 离合器鼓(42)也接触并支撑抵消板(34),并由外筒部(50c)支撑。 因此,离合器鼓(42)更多地被支撑在外周侧,并且即使离合器鼓(42)受到解除油室(37)的离心液压的影响,也可以抑制变形。