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    • 1. 发明申请
    • Hydraulic Cylinder
    • 液压缸
    • US20100300283A1
    • 2010-12-02
    • US11918183
    • 2006-04-11
    • Kazuya ImamuraKuniaki NakadaNoboru KanayamaMitsuo YabeTomoya WatanabeTeruyuki Hosoya
    • Kazuya ImamuraKuniaki NakadaNoboru KanayamaMitsuo YabeTomoya WatanabeTeruyuki Hosoya
    • F15B15/22
    • F15B15/222
    • A pressure-receiving face plate 29 is mounted on one end face of a piston 12, and a support member 26 is raised on the end face of the piston 12. Disposed on the support member 26 with an allowance are, from the pressure-receiving faceplate 29 respectively, a disk spring 27, a plate 25, and a plunger 28. A flange 26a prevents these members from slipping off the support member 26. When the piston 12 approaches a stroke end, the plunger 28 is inserted in an oil passage 20b and applies a cushioning effect to the piston 12. In addition, a gap between the pressure-receiving faceplate 29 and the plate 25 brought into contact with a cylinder bottom 17 becomes narrow, and produces a squeeze effect such that oil escapes from the narrow gap. This makes it possible to provide a hydraulic cylinder that produces a sufficient impact force at the stroke end of the piston and also reduces noise emitted by the impact force, without increasing a length of the hydraulic cylinder.
    • 压力接收面板29安装在活塞12的一个端面上,并且支撑构件26在活塞12的端面上升高。从压力接收部 分别为盘片29,盘簧27,板25和柱塞28.凸缘26a防止这些构件从支撑构件26滑落。当活塞12接近行程端时,柱塞28插入油路 并且对活塞12施加缓冲效果。此外,受压面板29与与缸底17接触的板25之间的间隙变窄,产生挤压效果,使得油从窄的 间隙。 这使得可以提供在活塞的行程端产生足够的冲击力的液压缸,并且还可以减小冲击力产生的噪音,而不增加液压缸的长度。
    • 4. 发明授权
    • Hydraulic cylinder
    • 液压缸
    • US08336444B2
    • 2012-12-25
    • US11918183
    • 2006-04-11
    • Kazuya ImamuraKuniaki NakadaNoboru KanayamaMitsuo YabeTomoya WatanabeTeruyuki Hosoya
    • Kazuya ImamuraKuniaki NakadaNoboru KanayamaMitsuo YabeTomoya WatanabeTeruyuki Hosoya
    • F15B15/22
    • F15B15/222
    • A pressure-receiving face plate 29 is mounted on one end face of a piston 12, and a support member 26 is raised on the end face of the piston 12. Disposed on the support member 26 with an allowance are, from the pressure-receiving faceplate 29 respectively, a disk spring 27, a plate 25, and a plunger 28. A flange 26a prevents these members from slipping off the support member 26. When the piston 12 approaches a stroke end, the plunger 28 is inserted in an oil passage 20b and applies a cushioning effect to the piston 12. In addition, a gap between the pressure-receiving faceplate 29 and the plate 25 brought into contact with a cylinder bottom 17 becomes narrow, and produces a squeeze effect such that oil escapes from the narrow gap. This makes it possible to provide a hydraulic cylinder that produces a sufficient impact force at the stroke end of the piston and also reduces noise emitted by the impact force, without increasing a length of the hydraulic cylinder.
    • 压力接收面板29安装在活塞12的一个端面上,并且支撑构件26在活塞12的端面上升高。从压力接收部 分别为盘片29,盘簧27,板25和柱塞28.凸缘26a防止这些构件从支撑构件26滑落。当活塞12接近行程端时,柱塞28插入油路 并且对活塞12施加缓冲效果。此外,受压面板29与与缸底17接触的板25之间的间隙变窄,产生挤压效果,使得油从窄的 间隙。 这使得可以提供在活塞的行程端产生足够的冲击力的液压缸,并且还可以减小冲击力产生的噪音,而不增加液压缸的长度。