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公开(公告)号：US20030044096A1
公开(公告)日：2003-03-06
申请号：US10228183
申请日：2002-08-27
发明人： Toshisada Koyama , Yasuhiro Mouri
IPC分类号： F16C033/60
CPC分类号： F16C19/08 , F16C2370/12 , G11B5/4813 , G11B5/5521
摘要： A pivot bearing includes a stepped shaft including an enlarged and a reduced diameter shaft portions; a plurality of balls of the lower row are interposed between the enlarged diameter shaft portion and a sleeve outer ring surrounding the enlarged diameter shaft portion; a ball bearing including inner and outer rings and a plurality of balls interposed therebetween is provided around the reduced diameter shaft portion so that the inner ring is secured around the reduced diameter shaft portion with applying an appropriate pre-load on the upper end surface of the inner ring, and the outer ring is urged to contact the lower surface thereof intimately onto the upper surface of the sleeve outer ring. The pivot bearing is reduced in the number of elements, facilitated in incorporating a bearing with the swing arm, and expected to reduce the manufacturing cost.
摘要翻译： 一个枢转轴承包括一个阶梯轴，它包括一个放大和缩径的轴部分; 下列的多个球插入在扩大直径轴部和围绕扩大直径轴部的套筒外圈之间; 包括内圈和外圈的球轴承和介于它们之间的多个球设置在减径直径轴部分周围，使得内圈通过在该直径轴部的上端表面上施加适当的预载而固定在减径轴部分上 内环，并且外环被迫使其下表面紧密地接触到套筒外圈的上表面上。 枢轴轴承减少了元件的数量，便于与摆臂组合轴承，并且期望降低制造成本。
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公开(公告)号：US20030012471A1
公开(公告)日：2003-01-16
申请号：US10188084
申请日：2002-07-03
发明人： Takuya Yamamoto , Shigenori Hoya
IPC分类号： F16C033/41
CPC分类号： F16C33/418 , F16C19/06 , F16C33/3887 , F16C33/416 , F16C2370/12
摘要： A retainer for a ball bearing being characterized in that each pocket includes upper halves following the entrance, a pair of lower halves following the upper halves, and a bottom portion disposed between lower halves, wherein an inner peripheral surface of each upper half presents a curved surface of a radius of curvature slightly larger than that of the ball to be retained therein in both peripheral and width directions of the pocket, an inner peripheral surface of each lower half descending inwardly, the inner peripheral surface of each lower half and an inner surface of the bottom portion each presents a configuration which has a shape of curved surface in the width direction of the pocket and of a straight shape in the peripheral direction of the pocket so as to contact tangentially with the ball so as to contact tangentially with the ball to be retained.
摘要翻译： 一种用于球轴承的保持器，其特征在于，每个口袋包括入口后的上半部，跟随上半部的一对下半部以及设置在下半部之间的底部部分，其中每个上半部分的内周表面呈弧形 曲率半径的表面略大于在凹槽的两个周向和宽度方向上保持的球的曲率半径，每个下半部的内周面向下下降，每个下半部的内周面和内表面 底部的每一个呈现出一种构造，该构造具有在袋的宽度方向上具有弯曲表面的形状，并且在袋的周向方向上具有直的形状，以便与球相切地接触以便与球接触地接触 被保留。
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公开(公告)号：US20020047394A1
公开(公告)日：2002-04-25
申请号：US09897599
申请日：2001-07-03
发明人： Rikuro Obara , Hiroshi Yoshikawa
IPC分类号： H02K005/16
CPC分类号： F16C19/54 , F16C19/06 , F16C19/08 , F16C35/077 , F16C2370/12 , G11B19/2009 , H02K5/1735
摘要： A spindle motor comprising a double row bearing device including a shaft, a sleeve surrounding the shaft, and a pair of upper and lower rows of balls, a cylindrical bearing holder extending upwardly from a base of the spindle motor for accommodating the sleeve within a vertical bore of the holder, and a rotor hub mounted on the shaft for journaling the rotor hub rotatably on the base, the spindle motor is characterized in that a reduced inner diameter portion of an inner diameter smaller than the outer diameter of the sleeve is formed on the inner surface of the bore of the bearing holder between the upper and lower larger inner diameter portions to urge the sleeve inwardly by the reduced inner diameter portion to deform it elastically to form a squeezed portion protruding inwardly of the sleeve between the upper and lower rows of balls.
摘要翻译： 一种主轴电动机，包括双列轴承装置，其包括轴，围绕轴的套筒和一对上排和下排的滚珠，从主轴电机的底部向上延伸的圆柱形轴承保持器，用于将套筒容纳在垂直 所述保持器的孔和安装在所述轴上的转子毂用于将所述转子轮毂可旋转地安装在所述基座上，所述主轴电机的特征在于，内径小于所述套筒外径的内径减小的部分形成在 轴承保持器的孔的内表面在上和下较大内径部分之间，以通过减小的内径部分向内推动套筒，以使其弹性变形，以形成在套筒之间向上突出的上下行之间的挤压部分 的球。
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公开(公告)号：US20010053256A1
公开(公告)日：2001-12-20
申请号：US09866755
申请日：2001-05-30
发明人： Rikuro Obara
IPC分类号： F16C033/04
CPC分类号： F16C19/54 , F16C19/525 , F16C19/56 , Y10S384/905
摘要： A bearing apparatus including inner and outer rings and balls interposed therebetween, the apparatus being characterized in that it comprises: a low expansion ring press fit around the outer periphery of the outer ring, wherein the low expansion ring is made of a material with lower factor of linear thermal expansion than the outer ring material.
摘要翻译： 一种轴承装置，包括插入其间的内圈和外圈和滚珠，所述装置的特征在于包括：围绕外圈外周的低膨胀环压配合，其中低膨胀环由具有较低因子的材料制成 的线性热膨胀比外圈材料。
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公开(公告)号：US20010036416A1
公开(公告)日：2001-11-01
申请号：US09804198
申请日：2001-03-13
发明人： Rikuro Obara
IPC分类号： F04B017/00
CPC分类号： F04D25/08 , F04D25/0633 , H02K5/10 , H02K7/14 , H02K11/33
摘要： The object of the present invention is to provide a blower in which electrical components such as printed circuit board or electronic parts are isolated from the wind flowing through the blower to protect these components from moisture, dirt, dusts, or other harmful gas or substance contained in the wind, and to prevent the degradation of the insulating property such as the electric insulation or dielectric strength. A blower having an impeller 6 adapted to be rotated by means of a motor 3 comprises a base 4 for supporting the motor 3, the base is provided and supported at the central portion of a frame 1 through stays 2, a chamber 11 for accommodating electrical components formed in the base, the back portion of the chamber is adapted to be sealed by a removable cover 10, wherein the chamber for accommodating electrical components is formed by the base 4 having a flange 4a extending backward from the outer periphery thereof to form a cylindrical body with a bottom, the chamber has an opening at the rear thereof, and the rear opening of the base is occluded by the cover 10 detachably mounted by screws on the base 4.
摘要翻译： 本发明的目的是提供一种鼓风机，其中诸如印刷电路板或电子部件的电气部件与流过鼓风机的风隔离，以保护这些部件免受湿气，污垢，灰尘或其它有害气体或物质的影响 在风中，并且防止诸如电绝缘或绝缘强度的绝缘性能的劣化。 具有适于通过马达3旋转的叶轮6的鼓风机包括用于支撑马达3的基座4，基座通过支柱2设置并支撑在框架1的中心部分处，用于容纳电气的腔室11 在底座中形成的部件，腔室的后部适于被可移除的盖子10密封，其中用于容纳电气部件的腔室由具有从其外周向后延伸的凸缘4a形成的基座4形成， 具有底部的圆筒体，所述室在其后部具有开口，并且基座的后部开口被可拆卸地安装在基座4上的螺钉的盖10遮挡。
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公开(公告)号：US20010022478A1
公开(公告)日：2001-09-20
申请号：US09795490
申请日：2001-03-01
发明人： Rikuro Obara , Hiroshi Yoshikawa
IPC分类号： H02K005/16 , H02K007/08
CPC分类号： G11B19/2009 , F16C19/54 , F16C35/077 , F16C2370/12
摘要： A spindle motor of the present invention is capable of keeping its ball (5a, 5b)'s pre-load constant, because a sleeve (6) is capable of being resiliently deformed due to its resiliency, and therefore capable of constantly keeping a pre-load applied to the balls (5a, 5b) from inner and inner ring raceways of inner and outer rings (3a, 4a, 3b, 4b) of ball bearings (3, 4). In this motor, a rotor hub (7) has an axial center bore (8). This bore (8) is provided with: a large-diameter bore portions in its opposite axial ends; and, a small-diameter bore portion (8a) axially interposed between the large-diameter bore portions. An inner diameter of the small-diameter bore portion (8a) is smaller than an outer diameter of the sleeve (6). The axial center bore (8) of the hub (7) is fitted to an outer peripheral surface of the sleeve (6) in an insertion manner through a heating shrinkage fit process, so that the sleeve (6) is subjected to a radially inwardly exerted pressure applied from outside to resiliently deform radially inwardly. As a result, a small-diameter portion (6a) is formed in the sleeve (6) to extend radially inwardly between the outer rings (3b, 4b).
摘要翻译： 本发明的主轴电动机能够保持其球（5a，5b）的预加载恒定，因为套筒（6）由于其弹性而能够弹性变形，因此能够不断地保持预先 从滚珠轴承（3,4）的内圈和外圈（3a，4a，3b，4b）的内圈和内圈滚道施加到滚珠（5a，5b）上。 在该电动机中，转子毂（7）具有轴向中心孔（8）。 该孔（8）设置有：在其相对轴向端部的大直径孔部分; 以及轴向插入在大直径孔部之间的小直径孔部（8a）。 小直径孔部（8a）的内径小于套筒（6）的外径。 轮毂（7）的轴向中心孔（8）通过加热收缩配合工艺以插入方式装配到套筒（6）的外周表面，使得套筒（6）经受径向向内 施加从外部施加的压力以径向向内弹性变形。 结果，在套筒（6）中形成小直径部分（6a），以在外环（3b，4b）之间径向向内延伸。
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公开(公告)号：US5843369A
公开(公告)日：1998-12-01
申请号：US769565
申请日：1996-12-19
申请人： Rikuro Obara , Yutaka Daikuhara
发明人： Rikuro Obara , Yutaka Daikuhara
CPC分类号： F16C33/62 , C22C38/18 , F16C19/06 , Y10S148/906
摘要： To provide a stainless steel for anti-friction bearings, which is obtained by making its eutectic carbide contents finer in particle diameter and suppressing the generation of non-metallic substances to an extremely low level, thus having a homogenious and dense structure and permitting highly accurate machining. The provided stainless steel is composed of 0.60 to 0.75% of carbon, 10.5 to 13.5% of chromium, 1.0% or below of silicon and 0.3 to 0.8% of manganese, % being by weight, the remainder of the composition being iron and inevitably introduced impurities, has a hardness of HRC 58 or above, contains eutectic carbide particles of 10 .mu.m and below in diameter, and has oxygen and titanium concentrations each of 10 ppm or below.
摘要翻译： 为了提供一种用于抗磨轴承的不锈钢，其通过使其共晶碳化物的粒径更细并且将非金属物质的产生抑制在非常低的水平上而获得，因此具有均匀且致密的结构并且允许高精度 加工。 所提供的不锈钢由碳的0.60〜0.75％，铬的10.5〜13.5％，硅的1.0％以下和锰的0.3〜0.8％构成，其中的铁是不可避免的， 杂质，具有HRC 58以上的硬度，含有直径10μm以下的共晶碳化物粒子，氧和钛的浓度各自为10ppm以下。
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公开(公告)号：US5826989A
公开(公告)日：1998-10-27
申请号：US659478
申请日：1996-06-06
申请人： Rikuro Obara , Katashi Tatsuno
发明人： Rikuro Obara , Katashi Tatsuno
IPC分类号： H02K5/16 , F16C19/18 , F16C19/54 , F16C19/56 , F16C25/06 , F16C33/32 , F16C33/60 , F16C35/12 , G11B19/20 , H02K5/173 , F16C19/10
CPC分类号： H02K5/1737 , F16C19/505 , F16C19/54 , F16C25/06 , F16C33/32 , F16C33/60 , F16C35/12 , G11B19/2009 , H02K5/1735 , F16C19/08 , F16C2370/12
摘要： A compound ball bearing comprises a bearing body including a spindle 1, a sleeve 2 surrounding the spindle 1, and an inner ring fitted on the spindle or an outer ring fitted in the sleeve, and balls 5, 9 provided between the spindle 1 and sleeve 2, between the spindle and outer ring or between the inner ring 6 and sleeve 2. A motor component such as a hub 11 for the rotor, a flange for the motor base or a yoke yolder is molded as a one-piece molding with the sleeve, spindle or inner ring. The inner or outer ring can be secured in a proper position by facilitating its pre-loading, and the vibration accuracy of the spindle can be improved.
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公开(公告)号：US5510661A
公开(公告)日：1996-04-23
申请号：US226275
申请日：1994-04-11
CPC分类号： H02K5/1737 , F16C19/18 , F16C35/063 , F16D1/068
摘要： In a motor having a spindle (5) on which an inner race (8) of a ball bearing is mounted, an outer peripheral surface of an end of the spindle (5) has a knurled portion (16) on which is mounted the inner race (8) which is fixed to the spindle (5) through an adhesive (18) filled in a clearance between an inner surface of the inner race (8) and the knurled portion (16). An annular groove (19), formed in the spindle (5) in an area adjacent to the knurled portion (16), is also filled with the adhesive (18) to further fix the inner race (8) to the spindle (5), which improves the adhesive bond between the inner race (8) and the spindle (5). Even when the ball bearing is a miniature one having a thin-wall inner race (8), there is no fear of deformation of the inner race (8) when the adhesive (18) is cured, which improves the rotational accuracy of the rotor.
摘要翻译： 在具有安装有滚珠轴承的内圈（8）的主轴（5）的电动机中，主轴（5）的端部的外周面具有滚花部（16），在其上安装有内圈 （8），其通过填充在内座圈（8）的内表面和滚花部分（16）之间的间隙中的粘合剂（18）固定到主轴（5）。 在与滚花部分（16）相邻的区域中形成在主轴（5）中的环形槽（19）也被填充有粘合剂（18）以进一步将内圈（8）固定到主轴（5） ，这改善了内圈（8）和主轴（5）之间的粘合。 即使当球轴承是具有薄壁内圈（8）的微型轴承时，当粘合剂（18）固化时，也不必担心内座圈（8）变形，这提高了转子的旋转精度 。
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公开(公告)号：US5320460A
公开(公告)日：1994-06-14
申请号：US82766
申请日：1993-06-28
申请人： Yuichi Murakami , Yoshihiro Iwata
发明人： Yuichi Murakami , Yoshihiro Iwata
CPC分类号： B65D39/084 , B65D53/06
摘要： A plug-type sealing assembly for hermetically closing a filler hole 24 of a lid 19 of a container 20, comprises: a plug 1 having a rod portion 3 in an upper part of which a large-diameter head portion 2 is formed, the rod portion 3 having a male screw 5 in its outer peripheral surface; and, a sleeve 8 provided with an axial through-hole together with a countersunk head portion 10 and a slit skirt portion 11 extending downward from a lower end of said countersunk head portion 10. In the through-hole, a female screw 15a, 15b is formed. In the container 20: through the filler hole 24 a sealant 23 is supplied between joint portions of the container 20 so that the container 20 is hermetically sealed; and, the sealing assembly is easily removed from the filler hole 24 to ensure that the sealant 23 is supplemented or replaced with a new one through the filler hole 24 in an easy and a safety manner, and easily mounted again in the filler hole 24 after completion of such supplementing or replacing operation of the sealant 23, by threadably engaging the male screw 5 of the plug 1 with and disengaging from the female screw 15a, 15b of the sleeve 8.
摘要翻译： 用于密封容器20的盖19的填充孔24的插塞型密封组件包括：插塞1，其上部具有大直径头部2的杆部3，杆 部分3在其外周表面具有外螺纹5; 以及具有与沉头部10一起形成的轴向通孔的套筒8和从所述埋头头部10的下端向下延伸的狭缝裙部11。在通孔中，内螺纹15a，15b 形成了。 在容器20中：通过填充孔24，在容器20的接合部分之间提供密封剂23，使得容器20被气密地密封; 并且密封组件容易从填充孔24移除，以确保密封剂23以容易和安全的方式通过填充孔24被补充或替换为新的密封剂23，并且可以容易地再次安装在填充孔24中 完成这样的补充或更换密封剂23的操作，通过与套筒8的内螺纹15a，15b螺纹接合插头1的外螺纹5与其脱离啮合。
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