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    • 15. 发明授权
    • Bearing unit, and motor and electronic apparatus having the bearing unit
    • 轴承单元,以及具有轴承单元的电机和电子设备
    • US07258487B2
    • 2007-08-21
    • US11041307
    • 2005-01-25
    • Kenichiro YazawaTakeshi KanekoYoshiaki KakinumaYuji Shishido
    • Kenichiro YazawaTakeshi KanekoYoshiaki KakinumaYuji Shishido
    • F16C32/06
    • F16C33/107F16C17/026F16C17/08H02K5/1675Y10S384/903
    • The bearing unit of the present invention has: a shaft; a radial bearing which supports the shaft in a circumferential direction of the shaft; a thrust bearing which supports an end of the shaft in a thrust direction of the shaft; a housing having a closed structure except for a shaft insertion hole in which the shaft is inserted, with the radial bearing and the thrust bearing being provided inside the housing; a stopper member which prevents the shaft from being pulled out of the radial bearing; and viscous liquid filled in the housing. The stopper member is made of an elastic member which is elastically deformed only in the radial direction and is hardly deformed in the axial direction. Hence, the shaft is prevented from being pulled out from the housing, and shortage of the lubrication oil around bearing surfaces is prevented from being caused by lifting of the shaft.
    • 本发明的轴承单元具有:轴; 径向轴承,其在所述轴的圆周方向上支撑所述轴; 推力轴承,其在所述轴的推力方向上支撑所述轴的端部; 除了轴插入轴之外具有闭合结构的壳体,径向轴承和止推轴承设置在壳体内部; 阻止轴从径向轴承拉出的止动构件; 和填充在壳体中的粘性液体。 止动构件由弹性构件制成,其仅在径向方向上弹性变形,并且在轴向方向上几乎不变形。 因此,防止轴被从壳体拉出,并且防止由于提升轴而导致轴承表面周围的润滑油不足。
    • 20. 发明授权
    • Bearing unit and rotating apparatus using the bearing unit
    • 轴承单元和旋转装置使用轴承单元
    • US07527431B2
    • 2009-05-05
    • US11484682
    • 2006-07-12
    • Yoshiaki KakinumaTakeshi KanekoHiroshi SatoKenichiro Yazawa
    • Yoshiaki KakinumaTakeshi KanekoHiroshi SatoKenichiro Yazawa
    • F16C32/06F16C33/10
    • F16C17/107F16C17/026F16C33/107F16C2360/46
    • A bearing unit and a rotating apparatus which prevent leakage of lubricating oil to the utmost and which are superior in reliability are disclosed. A radial bearing and a thrust bearing support a shaft for rotation, and a path forming member and a path forming member lid form a communicating path having a function of short-circuiting pressure generated when the shaft and the radial bearing rotate relative to each other. A housing has a function of covering and holding the members mentioned while the housing is open at one end of the shaft with a small void left therebetween. Lubricating oil is filled in the void. The path forming member and the path forming member lid fully cover the members mentioned, except a shaft opening side portion of the radial bearing. The housing is made of a molded resin material.
    • 公开了一种轴承单元和防止润滑油泄漏最大并且可靠性优异的旋转装置。 径向轴承和止推轴承支撑用于旋转的轴,并且路径形成构件和路径形成构件盖形成具有当轴和径向轴承相对于彼此旋转时产生的短路压力的连通路径的连通路径。 壳体具有覆盖和保持所述构件的功能,同时壳体在轴的一端敞开,其间留有小空隙。 润滑油填满空隙。 路径形成构件和路径形成构件盖完全覆盖所述径向轴承的轴开口侧部分以外的构件。 外壳由模制树脂材料制成。