| 摘要 |
PROBLEM TO BE SOLVED: To provide a switching valve capable of forming easily a passage for exhausting air of a pilot chamber.SOLUTION: A switching valve includes a valve body 1 formed with a tank passage 12 and other passages, a spool 3 provided slidably in an inside of the valve body, a pilot chamber 5 faced with at least one end of the spool 3, an axial-directional passage 23 provided in the spool 3, and communicated with the pilot chamber all the time, and a small hole 24 communicated with the axial-directional passage 23, and opened in an outer circumference of the spool, the axial-directional passage 23 is provided in a position eccentric from an axis of the spool 3, and the small hole 24 is constituted to be communicated with the tank passage 12, when the spool moved by pilot pressure. |
