Vehicle manual valve

Abstract

To provide a vehicle manual valve including a first oil chamber formed between a shaft end face of a spool valve piece and an inner wall face of a cylinder bore end part, and a unidirectional valve connected to a discharge port of the first oil chamber and not opening an inside of the first oil chamber to atmospheric air, the manual valve preventing the generation of negative pressure inside the first oil chamber and suppressing an impact on a shift operability caused by the negative pressure.SOLUTION: A first oil chamber 28 is connected to a capacity-variable second oil chamber 34 via a connection oil passage 38. Even when a spool valve piece 16 that interlocks with an operation of a shift lever is moved in a direction in which a capacity of the first oil chamber 28 increases, a negative pressure is not generated inside the first oil chamber 28 due to a supply of work oil from the second oil chamber 34 by the amount corresponding to the increased capacity of the first oil chamber 28, which suppresses an impact on the shift operability caused by the negative pressure.SELECTED DRAWING: Figure 1

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