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    • 28. 发明授权
    • Cylinder device
    • 气缸装置
    • US07963113B2
    • 2011-06-21
    • US12203325
    • 2008-09-03
    • Mitsuhiro HanaokaOsamu UenoToshiaki MitaniTakayoshi Shinohara
    • Mitsuhiro HanaokaOsamu UenoToshiaki MitaniTakayoshi Shinohara
    • F16J15/32F15B7/08
    • F16J15/3236F15B7/08F16J15/166
    • A cup seal 21 includes a base portion 21a, an inner circumferential lip 21b slidingly contactable with a plunger 19 and an outer circumferential lip 21c contactable with the bottom surface 26a of the seal groove 26. Further, on the cup seal 21, there are provided elastic projections 21d projecting from the outer circumferential side leading end of the inner circumferential lip 21b toward the cylinder hole bottom portion. The length of the cup seal 21 from the base end face 21e to the leading end portions 21f is set longer than axial length of the seal groove 26. When the cup seal 21 is fitted into the seal groove 26, force is imparted on the inner circumferential lip 21b toward the cylinder hole inner circumferential direction to energize the inner circumferential lip 21b toward the piston all the time.
    • 杯形密封件21包括基部21a,与柱塞19滑动接触的内周唇21b和可与密封槽26的底面26a接触的外周唇21c。此外,在杯密封21上, 弹性突起21d从内周唇21b的外周侧前端朝向气缸孔底部突出。 杯形密封件21从基端面21e到前端部21f的长度被设定为比密封槽26的轴向长度长。当杯形密封件21装配到密封槽26中时,力被施加在内部 周向唇缘21b朝向气缸孔内周方向,从而使内周唇缘21b始终朝向活塞。
    • 30. 发明授权
    • Printed wiring board
    • 印刷电路板
    • US06418032B2
    • 2002-07-09
    • US09800582
    • 2001-03-08
    • Masayuki HirataOsamu Ueno
    • Masayuki HirataOsamu Ueno
    • H05K111
    • H05K9/0039H05K1/0225H05K1/0233H05K2201/093H05K2201/09663H05K2201/09772H05K2201/1006H05K2201/10689
    • A printed wiring board in which noise components at a high frequency side of a power supply voltage can be eliminated, and undesired radiation noisewhich is newly generated can be suppressed, such that noise can be greatly reduced overall. The printed wiring board includes a first signal layer, a GND layer, a power source layer and a second signal layer. A sub-power source layer is provided on a same layer as a main power source layer. The sub-power source layer is formed in a substantially oval shape at a predetermined position in a substantially oval opening in the main power source layer, such that it is not in direct contact with the main power source layer. Power supply voltage is supplied from the main power source layer through an L-type filter.
    • 可以抑制能够消除电源电压的高频侧的噪声成分的新印刷布线板,并且可以抑制新生成的不期望的放射线,使得整体上可以大大降低噪声。 印刷电路板包括第一信号层,GND层,电源层和第二信号层。 子电源层设置在与主电源层相同的层上。 子电源层在主电源层中的大致椭圆形的开口中的预定位置处形成为大致椭圆形状,使得它不与主电源层直接接触。 电源电压由主电源层通过L型滤波器供电。