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    • 1. 发明授权
    • Water pump
    • 水泵
    • US5217350A
    • 1993-06-08
    • US811435
    • 1991-12-23
    • Kenji KimuraKiyoshi MiyazakiToshihide MatsunagaShoji IsobeShigeru ItohNaokazu KawaseTsutomu Kishi
    • Kenji KimuraKiyoshi MiyazakiToshihide MatsunagaShoji IsobeShigeru ItohNaokazu KawaseTsutomu Kishi
    • F04D29/04F04D29/049F04D29/12
    • F04D29/049F04D29/128F02B2275/18F05B2260/603
    • A cylindrical support portion is provided on a wafer pump case to surround a rotary shaft, and a cylindrically formed power transmitting rotary wheel surrounding the support portion is integrally coupled to an outer end of the rotary shaft which protrudes outwardly from the support portion. A bearing means is interposed between an inner surface of the power transmitting rotary wheel and an outer surface of the support portion. A plurality of sealing members disposed concentrically with the bearing means are interposed between the rotary shaft and an inner surface of the cylindrical support portion at a location axially outwardly spaced from the mechanical seal, and a grease is filled between the sealing members. The water pump structure not only improves the sealing property of the sealing members by providing the sealing members at a location in which the deflection of the rotary shaft is smallest, but also increases the retaining property for the grease between the plurality of sealing members. This enhances water resistance of the bearing means. Moreover, in spite of the provision of the plurality of sealing members and the bearing means, the water pump structure avoids an undesirable increase in size and remains relatively compact.
    • 圆筒形支撑部分设置在晶片泵壳体上以围绕旋转轴,并且围绕支撑部分的圆柱形动力传递旋转轮一体地联接到从支撑部向外突出的旋转轴的外端。 在动力传递旋转轮的内表面和支撑部分的外表面之间插入有轴承装置。 与轴承装置同心地设置的多个密封构件设置在旋转轴与圆柱形支撑部分的内表面之间的轴向向外与机械密封件间隔开的位置处,并且在密封构件之间填充润滑脂。 水泵结构不仅通过在旋转轴的偏转最小的位置设置密封构件而提高密封构件的密封性,而且还增加了多个密封构件之间的润滑脂的保持性。 这增强了轴承装置的耐水性。 此外,尽管设置了多个密封构件和轴承装置,但是水泵结构避免了不期望的尺寸增加并且保持相对紧凑。
    • 9. 发明授权
    • Lens drive device
    • 镜头驱动装置
    • US08040624B1
    • 2011-10-18
    • US13071706
    • 2011-03-25
    • Kiyoshi MiyazakiTatsuki Wade
    • Kiyoshi MiyazakiTatsuki Wade
    • G02B7/02G02B15/14
    • G02B7/08H02K41/0356
    • A lens drive device for use with at least one lens may include a movable body holding a lens, a fixed body movably holding the movable body, and a drive mechanism for driving the movable body in the optical axis direction. The drive mechanism may include a drive coil fixed to the movable body and a plurality of drive magnets which is fixed to the fixed body and magnetized so that magnetic poles are different from each other in the optical axis direction. The fixed body may include an outer peripheral side magnetic member and an end face side magnetic member and an inner peripheral face of the outer peripheral side magnetic member and a side face of the drive magnet are faced each other through a predetermined space. The drive coil is disposed between the drive magnet and the inner peripheral face of the outer peripheral side magnetic member.
    • 用于至少一个透镜的透镜驱动装置可以包括保持透镜的可移动体,可移动地保持可移动体的固定体和用于在光轴方向上驱动可移动体的驱动机构。 驱动机构可以包括固定到可移动体的驱动线圈和固定到固定体并被磁化的多个驱动磁体,使得磁极在光轴方向上彼此不同。 固定体可以包括外周侧磁性构件和端面侧磁性构件以及外周侧磁性构件的内周面和驱动磁体的侧面彼此面对预定空间。 驱动线圈设置在驱动磁体和外周侧磁性部件的内周面之间。