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1. 发明专利

JP2015052328A ボールねじ有权
标题翻译：球杆螺丝
公开(公告)号：JP2015052328A
公开(公告)日：2015-03-19
申请号：JP2013183710
申请日：2013-09-05
申请人： Ntn株式会社 , Ntn Corp , Ntn株式会社
发明人： SHIMIZU TATSUNORI , SHIBATA YASUSHI , HIRANO MIKAKO , OISHI SHINJI
IPC分类号： F16H25/24
摘要：【課題】低コストでコンパクト化を図ると共に、耐久性と信頼性を向上させたボールねじを提供する。【解決手段】ナット3に円筒状のリンク部材7が外挿され、ナット3の外周面の一部に互いに対向してねじ軸2の中心を通る線上に支持孔6が形成されると共に、リンク部材7が、外周面に互いに対向して配置されて駆動部に連結されるウイング9を備え、外周面の一部に互いに対向して円孔7aが形成され、この円孔7aに枢軸8の一端部が圧入固定され、枢軸8の他端部が支持孔6に所定のすきまを介して嵌挿されている。組立誤差等があっても、リンク部材7がナット3と独立して回動することができ、これによりボールねじ1に負荷されるモーメント荷重が吸収され、ナット3とねじ軸2との間にボールねじ1の寿命に影響を与えるこじりが発生するのを防止することができる。【選択図】図3
摘要翻译：要解决的问题：提供一种成本低，尺寸紧凑，耐久性和可靠性提高的滚珠丝杠。解决方案：一个圆柱形连杆构件7外部配合到螺母3上，支撑孔6形成在线路通过螺杆轴2的中心，同时相对于螺母3的外周面的一部分，连杆构件7具有翼片9，翼9布置在外周面上并与其相对，并连接到驱动部分地，在外周面的一部分处形成有圆孔7a，并相互相对，枢轴8的一端被压力固定在圆孔7a上，枢轴8的另一端嵌合并插入通过规定的间隙进入支撑孔6。即使存在组装误差等，连杆部件7也可以与螺母3独立地转动，所以施加在滚珠丝杠1上的力矩因此被吸收，从而产生影响滚珠丝杠1的寿命的撬动能够防止螺母3与螺杆轴2之间的间隙。

2. 发明专利

JP2014020438A Chain guide and chain transmission device 审中-公开
标题翻译：链指导和链传输设备
公开(公告)号：JP2014020438A
公开(公告)日：2014-02-03
申请号：JP2012158597
申请日：2012-07-17
申请人： Ntn Corp , Ntn株式会社
发明人： KATO AKIO , OKASAKA MAKOTO , TSUJIMOTO TAKASHI , OISHI SHINJI
IPC分类号： F16H7/08 , F16C19/26 , F16C29/04 , F16C33/78 , F16C35/063
CPC分类号： F16H7/20
摘要： PROBLEM TO BE SOLVED: To provide a chain guide capable of molding a guide base excellent in durability, in the chain guide which performs rolling guide of the movement of a timing chain by means of a roller supported freely rotatably by the guide base.SOLUTION: A plurality of bearing parts 25 are disposed on lateral plate parts 22 of a pair of opposed guide bases 21 which are oppositely arranged on one side part of a timing chain 5 for torque transition and are molded with a mold, and shaft edge parts of the roller shaft 31 are supported on each of bearing parts 25. A roller 41 for guiding the chain is freely rotatably supported by each of a plurality of roller shafts 31. A parting line L is disposed between two intersection points a, b where a straight line A in the diameter direction which passes through the center of a circular inner surface of the bearing parts 25 elongated in the width direction of the lateral plate part 22 and the circular inner surface of the bearing parts 25 intersect each other, thus, it is prevented that a stress is concentrated on the parting line L.
摘要翻译：要解决的问题：提供一种链条引导件，其能够在通过由导向基座可自由旋转地支撑的滚子来执行正时链条的运动的滚动导轨的链条引导件中成型耐久性优异的引导基座。解决方案：多个轴承部件25设置在一对相对的导向基座21的相对地设置在正转链条5的一个侧面以进行扭矩转换的侧板部分22上，并且用模具模制，并且轴的边缘部分辊轴31支承在各轴承部件25上。用于引导链条的辊41由多个辊轴31中的每一个自由地可旋转地支撑。分型线L设置在两个交点a，b之间，其中直线 A在穿过侧板部22的宽度方向上延伸的轴承部件25的圆形内表面的中心和轴承部件25的圆形内表面的直径方向上彼此相干，因此防止应力集中在分型线L.

3. 发明专利

JP2013122257A Rolling bearing 审中-公开
标题翻译：滚动轴承
公开(公告)号：JP2013122257A
公开(公告)日：2013-06-20
申请号：JP2011269938
申请日：2011-12-09
申请人： Ntn Corp , Ntn株式会社
发明人： NAKAGAWA TSUTOMU , NISHIMURA MASA , OISHI SHINJI
IPC分类号： F16C33/66 , F16C33/46 , F16H1/28 , F16H57/04
CPC分类号： F16C33/46 , F16C19/26 , F16C33/4617 , F16C33/4635 , F16C33/4676 , F16C33/6651 , F16C2208/58 , F16C2208/62 , F16C2240/42 , F16C2240/44 , F16C2240/70 , F16C2361/61
摘要： PROBLEM TO BE SOLVED: To extend a life of a rolling bearing by preventing biting and accumulation of abrasion powder in a pocket 8 of a retainer 7 in the rolling bearing 1, thereby preventing occurrence of impression or oil film shortage in a roller 6.SOLUTION: A cutout 16 is formed in an inner diameter surface of an annular section 10 of a retainer 7 toward inside from an outer end surface of the retainer 7 in an axial direction thereof. An outer diameter of the cutout 16 is positioned toward an outer diameter side more than a position of an outer diameter-side end of an inner protrusion 11 of the retainer 7. As a result, lubricating oil flows satisfactorily in the axial direction from the inner diameter side of the retainer 7 toward the cutout 16 provided in the annular section 10, and thereby debris such as metallic powder contained in the lubricating oil hardly accumulates at portions of the inner protrusion 11 of a pillar 9.
摘要翻译：要解决的问题：通过防止磨损粉末在滚动轴承1中的保持器7的凹部8中的咬合和积累来延长滚动轴承的寿命，从而防止滚子中的印模或油膜短缺的发生解决方案：在保持器7的环形部分10的内径表面中，沿保持器7的轴向方向从保持器7的外端表面向内侧形成切口16。切口16的外径比保持器7的内突起部11的外径侧端部的位置更靠外径侧。因此，润滑油从内侧向轴向流动良好保持器7的直径侧朝向设置在环状部10中的切口16，从而容纳在润滑油中的诸如金属粉末的碎屑几乎不会在柱9的内部突起11的部分积聚。版权所有（C））2013，JPO＆INPIT

4. 发明专利

JP2013079694A Chain guide and chain transmission device 审中-公开
标题翻译：链指导和链传输设备
公开(公告)号：JP2013079694A
公开(公告)日：2013-05-02
申请号：JP2011220687
申请日：2011-10-05
申请人： Ntn Corp , Ntn株式会社
发明人： KATO AKIO , OISHI SHINJI , NAKAO GORO , OKASAKA MAKOTO
IPC分类号： F16H7/08 , F16H7/18
摘要： PROBLEM TO BE SOLVED: To improve the durability of a chain guide for guiding the movement of a timing chain by rollers.SOLUTION: A large number of roller receiving grooves 14 extending to both side directions of a guide base 11 are formed at a chain guide surface 13 of the guide base 11 arranged along the moving direction of the timing chain 5 at intervals in the length direction of the guide base 11, and the rollers 15 for guiding the timing chain 5 are assembled into the roller receiving grooves 14. The rollers 15 are rotatably supported at cylindrical inner surfaces 14a of the roller receiving grooves 14, and the durability is improved.
摘要翻译：要解决的问题：提高用于通过辊引导正时链条的运动的链条引导件的耐久性。解决方案：沿着正时链条5的移动方向布置的导向基座11的链条引导表面13上，间隔地形成有大量沿导向基座11的两个侧面延伸的滚子接纳槽14。引导基座11的长度方向和用于引导正时链条5的滚子15组装到滚子容纳槽14中。滚子15可旋转地支撑在滚子容纳槽14的圆柱形内表面14a处，耐久性得到改善。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2013072500A Chain guide and chain transmission device 有权
标题翻译：链指导和链传输设备
公开(公告)号：JP2013072500A
公开(公告)日：2013-04-22
申请号：JP2011212366
申请日：2011-09-28
申请人： Ntn Corp , Ntn株式会社
发明人： KATO AKIO , OISHI SHINJI
IPC分类号： F16H7/18
CPC分类号： F16H7/12 , F16H7/1281 , F16H7/18 , F16H7/20 , F16H2007/0842 , F16H2007/0865
摘要： PROBLEM TO BE SOLVED: To provide a chain guide having excellent durability.SOLUTION: This chain guide includes a guide base 15 arranged in a part of the outer periphery of a torque transmission chain 5 and extending long in the travel direction of the chain 5, a plurality of roller shafts 16 installed at an interval along the travel direction of the chain 5 on the guide base 15, and rollers 17 rotatably supported by the respective roller shaft 16. The distances between the centers of the respective rollers 17 are set to be shorter in the region where the load on the roller 17 is higher.
摘要翻译：要解决的问题：提供具有优异耐久性的链条引导件。解决方案：该链条引导件包括布置在转矩传递链5的外周的一部分中并沿链条5的行进方向延伸的引导基座15，沿着链条5的间隔安装的多个辊轴16 链条5在引导基座15上的行进方向，以及由各个滚子轴16可转动地支撑的滚子17.各个滚子17的中心之间的距离在滚子17上的载荷更高。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2013068302A Roller bearing 有权
标题翻译：滚子轴承
公开(公告)号：JP2013068302A
公开(公告)日：2013-04-18
申请号：JP2011208530
申请日：2011-09-26
申请人： Ntn Corp , Ntn株式会社
发明人： NAKAGAWA TSUTOMU , NISHIMURA MASA , OISHI SHINJI
IPC分类号： F16C33/46 , F16C33/34 , F16C33/56
摘要： PROBLEM TO BE SOLVED: To extend the service life of a crowned roller by making an oil film hard to be cut in an area of a straight portion of the roller.SOLUTION: A relief groove 16 dented in a circumferential direction is provided on a wall surface of a pillar section 9 of a pocket 8 of a retainer 7 for housing the crowned roller 6, and the relief groove 16 is formed so that the axial length thereof is larger than the axial length of the straight portion 6a of the roller 6. According to this, dust such as metal abrasion powder mixed to lubricating oil can be prevented from staying in the pocket 8 while sufficiently securing the oil film thickness in the straight portion 6a of the roller 6.
摘要翻译：要解决的问题：通过在辊的直线部分的区域中使油膜难以切割来延长加盖辊的使用寿命。解决方案：在用于容纳冠状辊6的保持器7的凹部8的支柱部9的壁面上设置有沿圆周方向凹陷的释放槽16，并且形成释放槽16，其轴向长度大于辊6的直线部分6a的轴向长度。因此，可以防止混入润滑油中的诸如金属磨损粉末的灰尘停留在袋8中，同时充分确保油膜厚度辊6的直线部分6a。版权所有（C）2013，JPO＆INPIT

7. 发明专利

JP2013024375A Retainer for roller bearing, molding die of the same and method for manufacturing the same 审中-公开
标题翻译：用于滚子轴承的保持器，其模制件及其制造方法
公开(公告)号：JP2013024375A
公开(公告)日：2013-02-04
申请号：JP2011162200
申请日：2011-07-25
申请人： Ntn Corp , Ntn株式会社
发明人： KATAYAMA AKIHIKO , OISHI SHINJI , YAMAMOTO SATOMI , KAWAI HIROMITSU , KANEHARA SHINGO , TAIKO MASAYA
IPC分类号： F16C33/46 , B29C45/44 , F16C19/26 , F16C33/56
摘要： PROBLEM TO BE SOLVED: To improve lubrication by lowering the height of an inner diameter-side roller stopping projection without losing a mechanism for preventing deviation of a roller in an inner diameter direction, in a pocket of a retainer for a roller bearing.SOLUTION: An outer diameter-side roller stopping projection 17 and an inner diameter-side roller stopping projection 17a are provided on each inner wall surface 16 of the pocket 14. A wedge angle θ is formed between the inner wall surfaces 16 so that the distance between them is made smaller toward the inner diameter side. The height b of the inner diameter-side roller stopping projection 17a is set to be lower than the height (a) of the outer diameter-side roller stopping projection 17 by inclination of the inner wall surfaces 16.
摘要翻译：要解决的问题：通过降低内径侧滚子停止突起的高度来改善润滑，而不会失去用于防止滚子在内径方向上的偏移的机构，用于滚子轴承的保持器的凹部。解决方案：在袋14的每个内壁表面16上设置有外径侧的止动突起17和内径侧的止动突起17a，在内壁表面16之间形成楔角θ 使得它们之间的距离朝向内径侧变小。通过内壁面16的倾斜，内径侧滚子止动凸起17a的高度b被设定为低于外径侧滚子止动凸起17的高度（a）。）2013，JPO＆INPIT

8. 发明专利

JP2011247286A Rolling bearing and method for manufacturing the same 审中-公开
标题翻译：滚动轴承及其制造方法
公开(公告)号：JP2011247286A
公开(公告)日：2011-12-08
申请号：JP2010117746
申请日：2010-05-21
申请人： Nippon Piston Ring Co Ltd , Ntn Corp , Ntn株式会社 , 日本ピストンリング株式会社
发明人： MATSUO AKIRA , TAKEGUCHI SHUNSUKE , OISHI SHINJI , NISHIMURA MASA , NAKAGAWA TSUTOMU
IPC分类号： F16C33/46 , B21D53/12 , B21K1/05 , B22F3/02 , B22F5/00 , F16C33/56
CPC分类号： F16C33/46 , B21K1/05 , B21K25/00 , B22F3/02 , B22F3/225 , B22F5/00 , B22F5/106 , F16C33/4629 , F16C33/467 , F16C33/4676 , F16C33/56 , F16C2220/20
摘要： PROBLEM TO BE SOLVED: To provide a rolling bearing capable of stably retaining rolling elements and reducing the cost of manufacturing, while being superior in strength, stiffness, heat resistance and dimensional accuracy without sacrificing performance as a bearing, and to provide a method for manufacturing the rolling bearing.SOLUTION: The rolling bearing uses a retainer having a plurality of pockets that accommodate and retain the rolling elements in the circumferential direction of the peripheral wall of a cylindrical member, at predetermined intervals. The retainer is integrally formed by metal powder injection molding and is provided with an area for accommodating the rolling elements. A structure for preventing rolling elements from falling out is formed by compressing the outer periphery of the rolling element area in the direction from the outer peripheral surface of the retainer toward the radial center.
摘要翻译：要解决的问题：提供一种能够稳定地保持滚动元件并降低制造成本的滚动轴承，同时在不牺牲作为轴承的性能的同时优异的强度，刚度，耐热性和尺寸精度，并且提供一种制造滚动轴承的方法。解决方案：滚动轴承使用具有多个凹穴的保持器，其以预定间隔容纳并保持滚动元件在圆柱形构件的周壁的圆周方向上。保持器通过金属粉末注射成型一体地形成，并且设置有用于容纳滚动元件的区域。用于防止滚动元件脱落的结构通过从保持器的外周面向径向中心的方向压缩滚动元件区域的外周而形成。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2011174430A Tappet for pump 审中-公开
标题翻译：泵的TAPPET
公开(公告)号：JP2011174430A
公开(公告)日：2011-09-08
申请号：JP2010039745
申请日：2010-02-25
申请人： Ntn Corp , Ntn株式会社
发明人： NISHIMURA MASA , OISHI SHINJI , KATO AKIO
IPC分类号： F02M59/10
摘要： PROBLEM TO BE SOLVED: To prevent an obstruction to reciprocating motion of a case 23 by preventing deformation of the case 23 when fixing a shaft 22 of a rolling bearing 31 as a structural member of a tappet for a pump to the case 23. SOLUTION: The case 23 is provided with a pair of support holes 23d and 23e for supporting both ends of the shaft 22 of the rolling bearing 31. In the state of inserting the shaft 22 into the support holes 23d and 23e, a plug 40 is pressed into the outer surface side of the support holes 23d and 23e to fix the shaft 22, which is inserted into the support holes 23d and 23e, to the case 23 by the plugs 40. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了防止当将作为泵的挺杆的结构构件的滚动轴承31的轴22固定到壳体23时防止壳体23的往复运动阻碍壳体23的变形解决方案：壳体23设置有用于支撑滚动轴承31的轴22的两端的一对支撑孔23d和23e。在将轴22插入支撑孔23d和23e的状态下，插头40被压入支撑孔23d和23e的外表面侧，以将插入支撑孔23d和23e中的轴22通过插头40固定到壳体23上。版权所有（C））2011年，JPO＆INPIT

10. 发明专利

JP2011075012A Dividable outer ring of bearing, bearing provided with dividable outer ring, and ring member for dividable outer ring 审中-公开
标题翻译：分体外圈，带有分体外圈的轴承和环形外圈
公开(公告)号：JP2011075012A
公开(公告)日：2011-04-14
申请号：JP2009226747
申请日：2009-09-30
申请人： Ntn Corp , Ntn株式会社
发明人： KATO AKIO , OISHI SHINJI
IPC分类号： F16C33/60 , F16C9/02 , F16C19/26 , F16C33/54 , F16C35/077
CPC分类号： F16C33/60 , F16C19/26
摘要： PROBLEM TO BE SOLVED: To provide a dividable outer ring having a snap ring in a simple shape, and allowing the snap ring to be easily fit onto outer ring segments. SOLUTION: The dividable outer ring 11 of a bearing includes: a plurality of the outer ring segments 12 and a ring member 17. Each of the outer ring segments 12 has an arcuate shape in which the outer ring of the bearing is divided in the circumferential direction, and has an outer circumferential groove 15 extending in the circumferential direction on an outer circumferential surface 14. The outer circumferential groove 15 has a cross-sectional shape with a groove width narrowing toward a groove bottom 15b. The ring member 17 has an arcuate shape more than 180° in the circumferential direction and a circular cross-sectional shape, fits into the outer circumferential groove 15, and comes in contact with both side surfaces 19 of the outer circumferential groove 15 so as to retain the plurality of the outer ring segments 12 in the state arranged in the shape of the outer ring of the bearing. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供具有简单形状的卡环的可分割外圈，并且允许卡环容易地装配到外环段上。解决方案：轴承的可分开的外圈11包括：多个外环段12和环形构件17.每个外环段12具有弓形形状，其中轴承的外圈被分开在圆周方向上具有在外周面14上沿圆周方向延伸的外周槽15.外周槽15具有槽宽度朝向槽底15b变窄的横截面形状。环状构件17在圆周方向上具有大于180°的圆弧形状并且具有圆形横截面形状，并且与外周凹槽15的两个侧表面19接触，以与将多个外环段12保持为轴承外圈形状的状态。版权所有（C）2011，JPO＆INPIT

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