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    • 4. 发明专利
    • Stroke shaped linear ball bearing
    • STROKE形状线性球轴承
    • JP2014001748A
    • 2014-01-09
    • JP2012135503
    • 2012-06-15
    • Ntn CorpNtn株式会社
    • YAMAMOTO KAZUYUKIHARADA TAKAMICHI
    • F16C31/04F16C19/08F16C33/38F16C33/66
    • F16C29/04F16C33/3856F16C33/40
    • PROBLEM TO BE SOLVED: To improve a position displacement preventing property of a retainer in a stroke type linear ball bearing in which the retainer that does not ride over a ball is incorporated.SOLUTION: An outside-diameter reducing face 14 or an inside-diameter enlarging face 17 is formed on an outer periphery or an inner periphery of an annular section 6, and guide of a retainer 2 by balls 3 can be maintained when the retainer 2 is inclined by a pocket gap, to further reduce a dragging torque than that by a race guide system. Also, the retainer 2 is made of synthetic resin and the balls 3 are made of ceramic, to reduce a total weight of the retainer 2 and the balls 3. Also, an internal pre-load is given to the balls 3.
    • 要解决的问题:提高行程型直线球轴承中的保持器的位置偏移防止性能,其中不包括不超过球的保持器。解决方案:外径减小面14或内径 扩大面17形成在环状部6的外周或内周上,并且当保持架2通过袋间隙倾斜时,可以保持保持架2的导引,从而进一步减小拖曳扭矩 通过比赛指导系统。 此外,保持器2由合成树脂制成,并且滚珠3由陶瓷制成,以减小保持器2和滚珠3的总重量。此外,向滚珠3提供内部预载荷。
    • 6. 发明专利
    • Motion guide device
    • 运动指南装置
    • JP2011247409A
    • 2011-12-08
    • JP2011095463
    • 2011-04-21
    • Thk Co LtdThk株式会社
    • SHIRAI TAKEKIIWAKI JUNICHIRO
    • F16C31/04
    • PROBLEM TO BE SOLVED: To provide a technology to suppress rotation of a moving body to a guide member with simple configuration, despite a motion guide device capable of obtaining brisk motion.SOLUTION: The motion guide device includes a shaft 1 and a nut unit 2 for guiding the shaft 1 so as to be reciprocated and rotated, Four magnetic body portions 3a to 3d made of magnetic body are provided at 90 degree intervals in the shaft 1, and permanent magnet portions 5a to 5d made of permanent magnet are provided at 90 degree intervals in the nut unit 2. Magnetic body portions 3a to 3d are attracted by permanent magnet portions 5a to 5d by magnetic force generated from permanent magnet portions 5a to 5d, and an angle of the shaft 1 to the nut unit 2 is maintained.
    • 要解决的问题:尽管具有能够获得快速运动的运动引导装置,但是提供一种以简单的构造来抑制移动体转动到引导构件的技术。 解决方案:运动引导装置包括轴1和用于引导轴1以便往复运动的螺母单元2,以90度间隔设置由磁体制成的四个磁性体部分3a至3d 轴1和由永久磁铁制成的永磁体部分5a至5d以螺旋形单元2为90度的间隔设置。磁性体部分3a至3d被永久磁铁部分5a至5d由永磁体部分5a产生的磁力吸引 至5d,并且保持轴1与螺母单元2的角度。 版权所有(C)2012,JPO&INPIT
    • 8. 发明专利
    • Linear motion bearing with rotary bearing
    • 带旋转轴承的直线运动轴承
    • JP2010281344A
    • 2010-12-16
    • JP2009133295
    • 2009-06-02
    • Hiihaisuto Seiko KkJuki CorpJuki株式会社ヒーハイスト精工株式会社
    • OKAWARA TAKAKIKOSEKI EIICHIKATO HIROKI
    • F16C31/04F16C35/067
    • PROBLEM TO BE SOLVED: To provide a linear motion bearing with a rotary bearing, which, while being reduced in size easily, stably slides/rotates an axial body with a high degree of accuracy, and making an alignment in a simple operation.
      SOLUTION: The linear motion bearing with the rotary bearing includes a linear motion bearing (13) which accommodates the axial body (12) in a cylinder (11) non-rotatably and slidably, and a rotary bearing (14) installed around the cylinder. The rotary bearing includes two or more circumferential grooves (11a) formed on the outer peripheral face of the cylinder at intervals in the longitudinal direction of the cylinder, a plurality of rolling bodies (15) arranged in each circumferential groove, two or more annular rolling body retainers (16) rotatably retaining the rolling bodies while part of each rolling body in each circumferential groove is projected to the outer peripheral side respectably, a cylinder (17) equipped with two or more peripheral grooves (17a) accommodating each rolling body projected from each retainer on an inner circumference face respectably, and a flange (18) installed around the cynlinder having a plurality of through-holes (18a) through which a bolt is inserted.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了提供一种具有旋转轴承的直线运动轴承,其在容易地减小的同时,以高精度稳定地滑动/旋转轴向体,并且在简单的操作中进行对准 。 解决方案:具有旋转轴承的直线运动轴承包括直线运动轴承(13),该直线运动轴承(13)以不可旋转和可滑动的方式容纳在气缸(11)中的轴向体(12)和安装在其周围的旋转轴承(14) 气瓶。 旋转轴承包括在气缸的纵向方向上间隔地形成在气缸的外周面上的两个或更多个周向槽(11a),布置在每个周向槽中的多个滚动体(15),两个或更多个环形滚动 每个圆周槽中的每个滚动体的一部分可旋转地保持滚动体的主体保持器(16)相对于外周侧突出到外周侧;缸(17),其配备有两个或更多个周边槽(17a),其容纳从 每个保持器在内圆周表面上均匀地安装,并且安装在所述轮子上的凸缘(18)具有多个通孔(18a),螺栓穿过所述多个通孔(18a)。 版权所有(C)2011,JPO&INPIT
    • 9. 发明专利
    • Bearing device
    • 轴承装置
    • JP2009162277A
    • 2009-07-23
    • JP2007341087
    • 2007-12-28
    • Nippon Bearing Co Ltd日本ベアリング株式会社
    • YAMAZAKI MITSURUYOKOYAMA TOSHIAKI
    • F16C43/04F16C19/18F16C25/08F16C31/04F16C33/60
    • F16C19/548F16C25/06F16C43/06
    • PROBLEM TO BE SOLVED: To provide a practical bearing device highly excellent in cost effectiveness and workability. SOLUTION: The bearing device consists of a shaft 1; a cylindrical member 3, which is fitted to this shaft 1 via rollers; a pair of support bearing parts 4a, 4b, which are provided on the cylindrical member 3 and each comprise an inner ring part provided on the outside circumference of the cylindrical member 3 and an outer ring part arranged outside the inner ring part to support the rollers with the inner ring part; and an adjustment cylindrical member 12, whose outer cylindrical body is fitted and screwed to an inner cylindrical body provided between the pair of support bearing parts 4a, 4b. The adjustment cylindrical member 12 consists of the inner cylindrical body 8, on the outside circumferential surface of which a male thread part 9 is formed, and the outer cylindrical body 10, which is fitted to the inner cylindrical body 8 and on the inside circumferential surface of which a female thread part 11, which is screwed to the male thread part 9, is formed. It is structured to enable the outer ring parts 7a, 7b to be pressed in the direction of separating from each other and to release the pressing by adjusting the length in the axial direction by changing the screw length of the inner cylindrical body 8 and the outer one 10. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种在成本效益和可加工性方面非常优异的实用的轴承装置。

      解决方案:轴承装置由轴1组成; 圆柱形构件3,其经由辊安装到该轴1; 一对支撑轴承部分4a,4b,其设置在圆柱形构件3上,并且各自包括设置在圆筒构件3的外周上的内环部分和布置在内环部分外侧的外环部分,以支撑辊 内环部分; 以及调节圆柱形构件12,其外圆筒体装配并拧到设置在一对支撑轴承部分4a,4b之间的内圆筒体上。 调节圆柱形构件12由内圆筒体8,其外圆周表面上形成有阳螺纹部分9,外筒体10与内筒体8和内圆周表面 其中形成有螺纹连接到阳螺纹部分9的内螺纹部分11。 其结构是使得外环部分7a,7b能够沿彼此分离的方向被按压,并且通过改变内圆柱体8和外部圆筒体8的螺钉长度来调节轴向长度来释放压力 一个10.版权所有(C)2009,JPO&INPIT