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公开(公告)号：JP2003021213A
公开(公告)日：2003-01-24
申请号：JP2001205203
申请日：2001-07-05
Applicant: Ntn Corp , エヌティエヌ株式会社
Inventor： MAKINO TOMOAKI
IPC: F16H15/52
Abstract: PROBLEM TO BE SOLVED: To extend a rolling fatigue life by improving smoothness of power transmission surface as a contact part of double cones 9 with a sun roller 7 and an outer ring 8 of a cone type CVT.
SOLUTION: In this friction type continuously variable transmission continuously changing speed by moving a carrier 10 in an axial direction of input and output shafts 2, 3 by speed changing mechanism 11, 12, 13 and displacing a contact part of double cones 9 with the sun roller 7 and the outer ring 8, surface roughness of the power transmission surface transmitting power between the double cones 9 and the sun roller 7 or the outer ring 8 is set to 0.11 μm or less in RMS surface roughness indication.
COPYRIGHT: (C)2003,JPOAbstract translation: 要解决的问题：通过提高作为双锥体9的接触部分的动力传递表面的平滑度，通过锥形CVT的太阳辊7和外环8来延长滚动疲劳寿命。 解决方案：在这种摩擦式无级变速传动装置中，通过使变速机构11,12,13在输入轴2,3的输入轴2,3的轴向上移动载体10，并且将双锥体9的接触部分与太阳 辊7和外圈8，在RMS表面粗糙度指示中将双锥9和太阳辊7或外环8之间的动力传递面传递动力的表面粗糙度设定为0.11μm以下。
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公开(公告)号：JP2003021212A
公开(公告)日：2003-01-24
申请号：JP2001205172
申请日：2001-07-05
Applicant: Ntn Corp , エヌティエヌ株式会社
Inventor： MAKINO TOMOAKI , NOZAKI TAKASHI
IPC: F16H15/52
Abstract: PROBLEM TO BE SOLVED: To secure smooth operation and shifting action of a cone type CVT and to improve power transmission efficiency by paying attention to accuracy of double cones.
SOLUTION: In this friction type continuously variable transmission continuously changing speed by moving a carrier 10 in an axial direction of input and output shafts 2, 3 by speed changing mechanism 11, 12, 13 and displacing a contact part of double cones 9 with a sun roller 7 and an outer ring 8, parallelism between opposing cone generating lines 9a' and 9b', or 9a" and 9b" is regulated to 0.04 mm or less, and distance difference between a plurality of double cones related to distance between two sections perpendicular to a rotation axis including designated diameters D
1 , D
2 of cone surfaces 9a, 9b of both sides of each double cones 9 is regulated to 0.06 mm or less.
COPYRIGHT: (C)2003,JPOAbstract translation: 要解决的问题：确保锥形CVT的平稳运行和换档动作，并注意双锥精度，提高动力传输效率。 解决方案：在这种摩擦式无级变速传动装置中，通过使变速机构11,12,13在输入轴2,3的输入轴2,3的轴向上移动载体10，并以太阳转移双锥9的接触部 辊7和外圈8之间，相对的锥形发生线9a'和9b'或9a“和9b”之间的平行度被调节到0.04mm或更小，并且多个双锥之间的距离与垂直于两个部分之间的距离有关 到包括每个双锥体9的两侧的锥面9a，9b的指定直径D1，D2的旋转轴被调节到0.06mm以下。
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公开(公告)号：JP2003021158A
公开(公告)日：2003-01-24
申请号：JP2001207982
申请日：2001-07-09
Applicant: Ntn Corp , エヌティエヌ株式会社
Inventor： NAKAGAWA AKIRA , YAMAZAKI KENTA
IPC: F16D3/2245 , F16D3/224
Abstract: PROBLEM TO BE SOLVED: To set a large operating angle and suppress chipping of a track edge portion by retarding derailment of a contact ellipse of a ball from a track groove during torque loading.
SOLUTION: A fixed constant velocity universal joint comprises an outer joint member 25 with a plurality of track grooves 23 axially formed at constant circumferential intervals on an inner spherical surface 21, an inner joint member 26 with a plurality of track grooves 24 axially formed at constant circumferential intervals on an outer spherical surface 22, a plurality of balls 28 interposed between both track grooves 24 and 23 of the inner and outer joint members 26 and 25, and a cage 29 interposed between the inner spherical surface 21 of the outer joint member 25 and the outer spherical surface 22 of the inner joint member 26; and both track grooves 24 and 23 have straight bottoms 24b and 23b parallel to the axis. A center of curvature OTO of the track grooves 23 of the outer joint member 25 and a center of curvature OTI of the track grooves 24 of the inner joint member 26 are positively offset over an axial equal distance with respect to a joint center OJ.
COPYRIGHT: (C)2003,JPOAbstract translation: 要解决的问题：通过在扭矩加载期间延迟球的接触椭圆从轨道槽的脱轨来设定大的操作角度并抑制轨道边缘部分的碎裂。 解决方案：固定等速万向接头包括外接头构件25，其具有在内球面21上以恒定的周向间隔轴向形成的多个轨道槽23，具有多个轴向形成为恒定的多个轨道槽24的内接头构件26 在外球面22上的圆周间隔，插入在内外侧接头构件26,25的两个轨道槽24,23之间的多个球28，以及设置在外侧接头构件25的内侧球面21之间的保持架29 和内侧接头构件26的外侧球面22。 并且两个轨道槽24和23具有平行于轴线的直的底部24b和23b。 外侧接头构件25的轨道槽23的曲率中心OTO和内侧接头构件26的轨道槽24的曲率中心OTI相对于接头中心OJ在轴向上相等的距离上被正确地偏移。
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公开(公告)号：JP2003021151A
公开(公告)日：2003-01-24
申请号：JP2001207298
申请日：2001-07-09
Applicant: Ntn Corp , エヌティエヌ株式会社
Inventor： UOZUMI TOMOHISA , OTSUKI HISASHI
CPC classification number: Y02T10/86
Abstract: PROBLEM TO BE SOLVED: To provide a bearing device for a wheel that dispenses with assembly with strict control, has high sealing performance and is inexpensive, light and compact.
SOLUTION: The bearing device for a wheel comprises a hub drum 1 having a wheel mounting flange 3 at one end of a cylindrical base portion 2 and a brake drum 5 in connection with the wheel mounting flange 3, a double row angular contact ball bearing 10 fitted in an inside diameter of the base portion 2 of the hub drum 1, and an axle 20 integrally having a vehicle body mounting portion 22 for mounting on a vehicle body; and supports a wheel in a rotatable relation to the axle 20. A seal 9 is mounted on an inboard side end of the base portion 2, and a lip 9a of the seal 9 is brought in sliding contact with a outer circumference of an inner ring 12.
COPYRIGHT: (C)2003,JPOAbstract translation: 要解决的问题：为了提供一种不经过严格控制的组件的轮子的轴承装置，具有高密封性能并且便宜，轻便且紧凑。 解决方案：用于车轮的轴承装置包括轮毂鼓1，轮毂鼓1在圆柱形基部2的一端具有轮安装凸缘3和与轮安装凸缘3连接的制动鼓5，双列角接触球轴承10 安装在轮毂鼓1的基部2的内径中的轴20和一体地具有用于安装在车体上的车身安装部22的车轴20; 并且支撑与轴20的可旋转关系的轮。密封件9安装在基部2的内侧端部，并且密封件9的唇部9a与内圈的外周滑动接触 12。
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公开(公告)号：JP2003013964A
公开(公告)日：2003-01-15
申请号：JP2001195176
申请日：2001-06-27
Applicant: Ntn Corp , エヌティエヌ株式会社
Inventor： UEDA KEIICHI , SASABE MITSUO
CPC classification number: F16C33/3812 , F16C19/06 , F16C33/3856 , F16C2226/74 , F16C2240/40 , F16C2240/80 , F16C2300/14 , F16C2316/10
Abstract: PROBLEM TO BE SOLVED: To surely control a gap in a radial direction of a segment forming a retainer of a super thin-walled bearing and to improve work efficiency for combining respective segments. SOLUTION: A cylinder-shaped connecting surface 45A and spherical connecting surface 46A are formed at one of a connecting portion A of the segment 40. These connecting surfaces 45A and 46A are respectively connected with a cylinder-shaped connecting surface 45B and spherical connecting surface 46B formed in a connecting portion B of a counter-segment 40 in a radial direction at a concavo-convex connecting state, and pulling-out of respective segments 40 can be prevented in a radial direction accordingly.
Abstract translation: 要解决的问题：可靠地控制形成超薄壁轴承的保持器的段的径向间隙，并提高组合各段的工作效率。 解决方案：圆筒形连接表面45A和球形连接表面46A形成在段40的连接部分A中的一个处。这些连接表面45A和46A分别与圆柱形连接表面45B和球形连接表面46B连接 形成在反向段40的连接部分B的凹凸连接状态的径向方向上，并且相应地可以在径向方向上防止相应的段40的拉出。
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Patent Agency Ranking
公开(公告)号：JP2003011036A
公开(公告)日：2003-01-15
申请号：JP2001198220
申请日：2001-06-29
Applicant: Ntn Corp , エヌティエヌ株式会社
Inventor： FUJIKAWA YOSHIO , OZAKI TAKAMI
Abstract: PROBLEM TO BE SOLVED: To provide an attachment main shaft device fitted to a machine tool, having high rotational accuracy of a tool and holding rigidity, and capable of improving machining accuracy and attaining high speed rotation especially in high speed cutting with a small-diameter tool.
SOLUTION: A main shaft 1 is supported in a housing 3 by bearings 7, 9, and a driving source 5 is contained in the housing 3. A support part of the main shaft 1 by the bearings 7, 9 and a chuck means 8 are formed by an integrated member. The chuck means 8 is formed by providing the tip of the main shaft 1 with a tool fitting hole 2 in which a shank part of a tool 4 is interference-fitted. The chuck means 8 enlarges the minimum inside diameter of the tool fitting hole 2 by thermal expansion to attach and detach the tool 4. The chuck means 8 may elastically deform the tool fitting hole 2 with external force to attach and detach the tool 4. The bearings 7, 9 are respectively hydrostatic gas bearings. In the hydrostatic gas thrust bearing 9, the rear end face 1a of the main shaft 1 is a baring surface.
COPYRIGHT: (C)2003,JPOAbstract translation: 要解决的问题：提供一种装配到机床上的安装主轴装置，具有高的刀具转动精度和保持刚性，并且能够提高加工精度并获得高速旋转，特别是在具有小直径的高速切削 工具。 解决方案：主轴1通过轴承7,9支撑在壳体3中，驱动源5容纳在壳体3中。主轴1的轴承7,9的支撑部分和卡盘装置8是 由综合成员组成。 卡盘装置8通过为主轴1的尖端设置有工具装配孔2而形成，工具4的柄部被干涉配合。 卡盘装置8通过热膨胀扩大工具装配孔2的最小内径，以附接和拆卸工具4.卡盘装置8可以用外力使工具装配孔2弹性变形以附接和拆卸工具4。 轴承7,9分别为静液压轴承。 在静水压推力轴承9中，主轴1的后端面1a为弯曲面。
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公开(公告)号：JP2003003746A
公开(公告)日：2003-01-08
申请号：JP2001192768
申请日：2001-06-26
Applicant: Matsushita Refrig Co Ltd , Ntn Corp , エヌティエヌ株式会社 , 松下冷機株式会社
Inventor： KOIKE TAKASHI , NAGANO YOSHITAKA
CPC classification number: A47B88/463 , A47B88/963
Abstract: PROBLEM TO BE SOLVED: To provide a door opener, by which a door open-close unit is miniaturized and lightened and a door can be opened efficiently by only one of the operation of a touch switch and which is silent.
SOLUTION: In the slide screw type door opener opening the rotary type door 10 in which one end section is supported rotatably by a hinge, the door opener has a bottomed cylindrical housing 3, a bottomed pusher 6 being internally inserted into the housing 3, being retractably movable by a double-surface forming 6c and 6c shape and being irrotationable, a screw shaft 5 turned by the driving force of the motor 2, a nut 7 being screwed to the screw shaft 5, being internally inserted into the pusher 6, being retractably movable by the double-surface forming 7b and 7b shape and being irrotationable, and a spring 8 housed in an annular space formed of one end face 7a of the nut 7 and the bottom section 6a of the pusher 6, and the pusher 6 is retracted by the forward and reverse rotation of the motor 2 by engaging the other end face 7c of the nut 7 with the pusher 6.
COPYRIGHT: (C)2003,JPOAbstract translation: 要解决的问题：提供一种门开启装置，通过该开门装置，门开闭单元被小型化和轻量化，并且仅通过触摸开关的操作中的一个而无效地打开门。 解决方案：在滑动螺钉式开门器中，打开旋转式门10，其中一个端部由铰链可旋转地支撑，开启器具有有底圆筒形壳体3，内部插入壳体3中的有底部推动器6， 通过双面成形6c和6c形状可旋转地移动，螺旋轴5由马达2的驱动力转动，螺母7螺纹连接到螺杆轴5，内螺纹固定在推动器6中， 通过双面成形7b和7b形状可收缩地移动并且不可转动，弹簧8容纳在由螺母7的一个端面7a和推动器6的底部6a形成的环形空间中，并且推动器6是 通过使螺母7的另一端面7c与推动器6接合，通过电动机2的正向和反向旋转来缩回。
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公开(公告)号：JP2002372067A
公开(公告)日：2002-12-26
申请号：JP2001183367
申请日：2001-06-18
Applicant: Ntn Corp , エヌティエヌ株式会社
Inventor： SAKAGUCHI AKIO , MAEDA KIKUO
Abstract: PROBLEM TO BE SOLVED: To provide a constant velocity universal coupling for a propeller shaft having excellent heat-resistant dimensional stability, usable even under the operating condition of a large N-θ value and having excellent durability. SOLUTION: In this constant velocity universal coupling for the propeller shaft with a ball 4 interposed between an inner ring 1 and an outer ring 2, the outer ring 2 has a plurality of linear track grooves 9 axially extending on a cylindrical inner peripheral surface, and the inner ring 1 has a plurality of linear track grooves 8 on a convex outer peripheral surface opposedly to the track grooves 9 of the outer ring 2. Both track grooves 8, 9 are provided in cross arrangement, and the ball 4 is built in the cross part of the track grooves 8, 9. The ball 4 is held by the cage 3 arranged between the outer peripheral surface of the inner ring 1 and the inner peripheral surface of the outer ring 2. The ball 4 is formed of heat resistant steel, and the surface hardness after quenching or carbonitriding is 58HRC or more, and the maximum carbon substance dimension is 8 μm or less.
Abstract translation: 要解决的问题：为了提供具有优异的耐热尺寸稳定性的传动轴的等速万能联轴器，即使在大N-θ值的操作条件下并且具有优异的耐久性的情况下也是如此。 解决方案：外圈2在内圈1和外圈2之间具有球4的传动轴恒速万能联轴器中，具有在圆筒形内周面上轴向延伸的多个线性轨道槽9， 内环1在与外圈2的轨道槽9相对的凸形外周面上具有多个线性轨道槽8.两个轨道槽8,9设置成交叉布置，球4内置于 轨道槽8,9的横截面。球4由设置在内圈1的外周面与外圈2的内周面之间的保持架3保持。球4由耐热钢 淬火或碳氮共渗后的表面硬度为58HRC以上，最大碳物质尺寸为8μm以下。
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公开(公告)号：JP3358879B2
公开(公告)日：2002-12-24
申请号：JP17301794
申请日：1994-07-26
Applicant: エヌティエヌ株式会社
Inventor： 隆 安西
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公开(公告)号：JP2002370506A
公开(公告)日：2002-12-24
申请号：JP2001178637
申请日：2001-06-13
Applicant: Ntn Corp , エヌティエヌ株式会社
Inventor： UMEKIDA HIKARI
Abstract: PROBLEM TO BE SOLVED: To preclude loosening from being generated in a coupled part even when a great moment load is applied to a device, allow precise pre-load control, and provide a proper pre-load level. SOLUTION: This bearing device is constituted by forming a hub wheel 1, a bearing part 2 and a constant velocity universal joint 3 into a unit. One bearing rolling face 14a is formed in an outer joint member 14 of the universal joint 3, an inner ring 10 of a separate body separated from the hub wheel 1 is fit around the outer joint member 14, a shaft part 16 of the joint member 14 is diameter-expanded, and is bitten into a recess 6 formed in an inner circumference of the hub wheel 1 to couple plastically the hub wheel 1 to the outer joint member 14.
Abstract translation: 要解决的问题：为了防止在耦合部分中产生松动，即使当大的力矩负载施加到装置时，允许精确的预加载控制，并提供适当的预加载水平。 解决方案：该轴承装置通过将轮毂轮1，轴承部件2和等速万向接头3形成为一个单元而构成。 一个轴承滚动面14a形成在万向接头3的外侧接头部件14中，与轮毂圈1分离的分离体的内圈10配合在外侧接头部件14的周围，接头部件的轴部16 14被直径膨胀，并且被咬入形成在轮毂圈1的内圆周中的凹部6中，以将轮毂轮1塑性地接合到外接头构件14。
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