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    • 3. 发明授权
    • Dual stroke cylinder
    • 双冲程气缸
    • US06343537B1
    • 2002-02-05
    • US09702670
    • 2000-11-01
    • Kenji IidaAkihiro Hirano
    • Kenji IidaAkihiro Hirano
    • F15B1524
    • F15B11/123F15B15/1409
    • A piston 14 for sliding in a cylinder 12, a rod 16 of the piston 14, and a sleeve 15 fitted over the rod 16 and passing through a rod hole 13 of the cylinder are provided. A lock portion 18 is provided to an outer periphery of a tip end portion of the rod 16. The sleeve 15 having an outer peripheral face for airtightly sliding in the rod hole 13 in the cylinder 12 and an inner peripheral face for airtightly sliding on an outer peripheral face of the rod 16 is provided with an engaging portion 22 on an inner end side to be engaged with an inside of the rod hole 13 of the cylinder and an engaging portion 23 at an outer end side to be engaged with the lock portion 18 of the rod 16. Supply/discharge ports 18A and 19A for supplying and discharging pressure fluid to and from pressure chambers 18 and 19 on opposite sides of the piston 14 in the cylinder are provided and intermediate stop is possible by supplying and discharging pressure fluid to and from the ports.
    • 设置有用于在气缸12中滑动的活塞14,活塞14的杆16和安装在杆16上并穿过气缸的杆孔13的套筒15。 锁定部18设置在杆16的前端部的外周。套筒15具有用于气缸12中的杆孔13中气密地滑动的外周面和用于气缸12内的气密滑动的内周面 杆16的外周面在内端侧设置有与筒的杆孔13的内侧接合的接合部22和在外端侧的接合部23,以与锁定部接合 提供用于向缸内活塞14的相对侧的压力室18和19供应和排出压力流体的供给/排出口18A和19A,并且通过供给和排出压力流体可以进行中间停止 往返港口。