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1. 发明专利

JP2017090273A ヨークカバー、トルク検出装置及び電動パワーステアリング装置、並びにヨークカバーの製造方法及び電動パワーステアリング装置の製造方法审中-公开
公开(公告)号：JP2017090273A
公开(公告)日：2017-05-25
申请号：JP2015221285
申请日：2015-11-11
申请人：日本精工株式会社 , Nsk Ltd , 中西金属工業株式会社 , Nakanishi Metal Works Co Ltd
发明人： HATANAKA KAZUYUKI , SHIGETA YASUSHI , SUGITA SUMIO , KAWAI YASUHIRO , TAKI MASAYUKI
IPC分类号： G01L3/10 , B62D5/04
CPC分类号： B62D5/04 , G01L3/10
摘要：【課題】トルク検出装置を構成する2つの電磁ヨークの円筒部の内径にはめあわされて前記2つの電磁ヨークを保持する1つのヨークカバーの製造コストを低減すること。【解決手段】軸方向に互いに向かい合わせた2つの電磁ヨーク11a,11bに挟まれるように、電磁ヨーク11a,11bの円筒部11d,11dの内径にはめあわされる1つのヨークカバー1であって、電磁ヨーク11aにはめあわされる第1円筒面2aが外周面の複数の第1周方向部分に形成され、電磁ヨーク11bにはめあわされる第2円筒面2bが外周面の前記第1周方向部分から周方向にずれた複数の第2周方向部分に形成され、第1円筒面2a及び第2円筒面2bが、打ち抜きプレス加工により打ち抜き方向を変えて形成されたせん断面であることを特徴とする。【選択図】図4

2. 发明专利

JP2013155806A Cross shaft type universal joint 有权
标题翻译：十字轴类型通用接头
公开(公告)号：JP2013155806A
公开(公告)日：2013-08-15
申请号：JP2012017148
申请日：2012-01-30
申请人： Nsk Ltd , 日本精工株式会社
发明人： MORIYAMA SEIICHI , MAEDA ATSUSHI , SHIGETA YASUSHI , SADAKATA KIYOSHI
IPC分类号： F16D3/38
摘要： PROBLEM TO BE SOLVED: To achieve a structure, which facilitates to satisfy both of securement of reliability and durability, and size-weight reduction, by increasing rupture strength when a large load is applied.SOLUTION: A base end part outer peripheral surface of each shaft part 12 for constituting a cross shaft 9a and a step height surface 38 being an outer surface of a joining base part 13, are continued by a concave curved surface 28a being a partial circular arc shape in a cross-sectional shape. In the outer surface of each concave curved surface 28a, at least a part is made to exist near the center of the joining base part 13 on the axial direction of each shaft part 12 rather than a peripheral part of each concave curved surface 28a in the joining base part 13. An annular recessed part 29 is formed in the peripheral part of the base end part of each shaft part 12 in the step height surface 38. With this constitution, a radius of curvature of the cross-sectional shape of each concave curved surfaces 28a is enlarged without enlarging a length dimension of each shaft part 12, and damage such as a crack is hardly caused in the base end part of each shaft part 12.
摘要翻译：要解决的问题：通过在施加大的负载时提高断裂强度，实现有利于满足可靠性和耐久性的确定以及尺寸减小的结构。解决方案：每个的基端部外周面用于构成横轴9a的轴部12和作为接合基部13的外表面的台阶高度表面38通过具有横截面形状的部分圆弧形状的凹曲面28a连续。在每个凹曲面28a的外表面中，至少一部分在每个轴部12的轴向方向上在接合基部13的中心附近存在，而不是在每个凹曲面28a的每个凹曲面28a的周边部分接合基部13.在台阶高度表面38中，每个轴部12的基端部的周边部形成有环状的凹部29.通过该结构，各凹部的截面形状的曲率半径在不扩大各轴部12的长度尺寸的情况下扩大曲面28a，并且在各轴部12的基端部难以产生裂纹等的损伤。

3. 发明专利

JP2009275897A Telescopic shaft and steering device having the same 有权
标题翻译：具有相同的电缆轴和转向装置
公开(公告)号：JP2009275897A
公开(公告)日：2009-11-26
申请号：JP2008130338
申请日：2008-05-19
申请人： Nsk Ltd , 日本精工株式会社
发明人： SHIGETA YASUSHI
IPC分类号： F16D3/06 , B62D1/20 , F16C3/035 , F16C29/12
CPC分类号： F16C29/123 , F16C3/035 , F16C29/04 , F16C2326/24
摘要： PROBLEM TO BE SOLVED: To provide a telescopic shaft capable of restricting an outbreak of collision noise due to a gap by eliminating a gap between torque transmitting portions for transmitting the large torque, and to provide a steering device having the same. SOLUTION: The clockwise rotating moment M is applied to a cylindrical pin 61, and the center axis 613 of the cylindrical pin 61 is inclined against the center axis 161 of a male intermediate shaft 16A. Consequently, the periphery of the cylindrical pin 61 on a vehicle front side thereof is pushed to an axial groove 52 of the male intermediate shaft 16A, and the periphery of the cylindrical pin 61 on a vehicle rear side thereof is pushed to an axial groove 41 of a female intermediate shaft 16B to apply a preload in the radial direction between the cylindrical pin 61 and the axial groove 52 and between the cylindrical pin 61 and the axial groove 41. Thereby, a radial gap and a circumferential gap is eliminated between the periphery of the cylindrical pin 61 and the axial groove 51 and the axial groove 41 to avoid an outbreak of collision noise between the periphery of the cylindrical pin 61 and the axial groove 52 and the axial groove 41. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种伸缩轴，其能够通过消除用于传递大扭矩的扭矩传递部之间的间隙来限制由间隙引起的碰撞噪声的爆发，并提供具有该扭矩传递部的转向装置。解决方案：顺时针旋转力矩M施加到圆柱销61，圆柱销61的中心轴线613相对于公中间轴16A的中心轴线161倾斜。因此，将其车辆前侧的圆筒销61的周边推到阳中间轴16A的轴向槽52中，将其车辆后侧的圆筒销61的周边推到轴向槽41 在圆筒销61和轴向槽52之间以及圆柱形销61和轴向槽41之间沿径向施加预载荷的母中间轴16B，从而在周向间隙之间消除了径向间隙和周向间隙圆柱形销61和轴向槽51以及轴向槽41，以避免在圆柱形销61的周边与轴向槽52和轴向槽41之间发生碰撞噪音。版权所有（C）2010 ，JPO＆INPIT

4. 发明专利

JP2017090274A ヨークカバー、トルク検出装置及び電動パワーステアリング装置、並びにヨークカバーの製造方法及び電動パワーステアリング装置の製造方法有权
公开(公告)号：JP2017090274A
公开(公告)日：2017-05-25
申请号：JP2015221286
申请日：2015-11-11
申请人：日本精工株式会社 , Nsk Ltd , 中西金属工業株式会社 , Nakanishi Metal Works Co Ltd
发明人： HATANAKA KAZUYUKI , SHIGETA YASUSHI , TAKI MASAYUKI
IPC分类号： G01L3/10 , B62D5/04
CPC分类号： B62D5/04 , G01L3/10
摘要：【課題】トルク検出装置を構成する2つの電磁ヨークにはめあわれる1つのヨークカバーの製造コストを増大させずに突起部の軸方向長さを規制する。【解決手段】回転軸に生じるトルクに応じてインピーダンスが変化する、対になる検出コイルを備え、前記検出コイルの出力電圧に基づいて前記トルクを検出するトルク検出装置を構成する、軸方向に互いに向かい合わせた2つの電磁ヨークに挟まれるように、前記2つの電磁ヨークの円筒部の内径にはめあわされる1つのヨークカバー1であって、2つの電磁ヨークの内径よりも径方向外側に突出し、前記電磁ヨークの対向する端部に形成された周方向複数の凹部に係合して突き当てられる周方向複数の突起部1aの軸方向端面が押圧加工された押圧面A,Bであり、前記押圧加工により突起部1aの軸方向長さを規制する。【選択図】図1

5. 发明专利

JP2013170695A Cross spider type universal joint and method of manufacturing cross spider for universal joint 有权
标题翻译：十字飞机类型通用接头和通用接头制造十字飞机的方法
公开(公告)号：JP2013170695A
公开(公告)日：2013-09-02
申请号：JP2012037146
申请日：2012-02-23
申请人： Nsk Ltd , 日本精工株式会社
发明人： MORIYAMA SEIICHI , MAEDA ATSUSHI , SHIGETA YASUSHI , SADAKATA KIYOSHI
IPC分类号： F16D3/41 , F16D3/20 , F16D3/26
摘要： PROBLEM TO BE SOLVED: To materialize a structure which is easy both to secure reliability and durability and to reduce size and weight by increasing breaking strength when large load is applied.SOLUTION: A basal end outer peripheral surface of each shaft 14 constituting a cross spider 11a and a stepped surface 30 serving as an external face of a coupling base 15 are connected via concaved planes 31a whose cross sections are partially arcuate, respectively. A radius of curvature of the cross section of these concaved planes 31a is made larger on the side of a distal half 33 connecting with an outer peripheral surface of each shaft 14 and made smaller on the side of a basal half 32 connecting with the stepped surface 30. With such a constitution, the radius of curvature R of the cross section of a part in the concaved planes 31a where stress occurring when transmitting torque is likely to increase is made to be large, thereby making damage such as cracks hard to occur on the basal end of each shaft 14, without unnecessarily enlarging a longitudinal dimension of each shaft 14.
摘要翻译：要解决的问题：实现容易确保可靠性和耐久性的结构，并且通过在施加大负载时提高断裂强度来减小尺寸和重量。结构：构成交叉蜘蛛的每个轴14的基端外周面 11a和作为联接基座15的外表面的阶梯面30分别通过其横截面部分地弓形的凹面31a连接。这些凹面31a的横截面的曲率半径在与每个轴14的外周面连接的前半部33的一侧较大，并且在与台阶表面连接的基半部32的一侧较小通过这样的结构，使传递转矩容易产生应力的凹面31a的部分的截面的曲率半径R变大，从而使得诸如裂纹等的损伤难以发生在每个轴14的基端，而不必不必要地扩大每个轴14的纵向尺寸。

6. 发明专利

JP2012037043A Joint cross type universal joint yoke and its manufacturing method 审中-公开
标题翻译：联合交叉型通用联合YOKE及其制造方法
公开(公告)号：JP2012037043A
公开(公告)日：2012-02-23
申请号：JP2010284192
申请日：2010-12-21
申请人： Nsk Ltd , 日本精工株式会社
发明人： MORIYAMA SEIICHI , MITA TATSUNORI , SHIGETA YASUSHI
IPC分类号： F16D3/26
摘要： PROBLEM TO BE SOLVED: To obtain a manufacturing method that facilitates manufacturing a yoke in which damage such as breakage hardly occurs at a bolt, even if a fastening force of the bolt becomes excessive due to the coupling/fixing of a base 14d of the yoke 12d and the end of a rotating shaft.SOLUTION: There are formed a penetration hole 25, a screw hole 26 and a seat face 19d while forces mutually approaching each other are applied between first and second flanges 16d, 17d, and the inside diameter of the base 14d is elastically fastened. After that, the forces applied to both the flanges 16d, 17d are released, and the inside diameter of the base 14d is expanded by its own elasticity. In other words, after forming the penetration hole 25, the screw hole 26 and the seat face 19d while the inside diameter of the base 14d is contracted, the inside diameter of the base 14d is expanded while elastically deforming both the flanges 16d, 17d in a direction in which they separate from each other.
摘要翻译：要解决的问题：为了获得一种制造方法，即使螺栓几乎不发生破损等的轭的制造，即使由于基部14d的联接/固定而使螺栓的紧固力过大，的轭12d和旋转轴的端部。解决方案：在第一和第二凸缘16d，17d之间形成有相互接近的力的穿透孔25，螺纹孔26和座面19d，基部14d的内径被弹性地紧固。此后，施加到两个凸缘16d，17d的力被释放，基部14d的内径由其自身的弹性而膨胀。换句话说，当基部14d的内径收缩时形成贯通孔25，螺纹孔26和座面19d之后，基部14d的内径膨胀，同时使两个凸缘16d，17d弹性变形一个彼此分离的方向。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2011214685A Cross shaft universal joint 有权
标题翻译：十字交叉通用接头
公开(公告)号：JP2011214685A
公开(公告)日：2011-10-27
申请号：JP2010084880
申请日：2010-04-01
申请人： Nsk Ltd , 日本精工株式会社
发明人： SHIGETA YASUSHI
IPC分类号： F16D3/26 , B62D1/20 , F16D1/06
摘要： PROBLEM TO BE SOLVED: To provide a structure capable of achieving easy machining and inexpensive manufacturing, minimizing the bend of a bolt, and besides, ensuring coupling strength between the base 13c of a yoke 12c and the end of a rotating shaft without especially increasing bolt tightening force.SOLUTION: A nut 30 is fitted into and fixed to a second through-hole 31 formed in a second flange 16c. The front end edge of a screw cylindrical portion 35 composing the nut 30 is projected to the side of a first flange 15c from the inner surface of the second flange 16c. In this regard, with the bolt tightened, the front end edge of the screw cylindrical portion 35 and first flange 15c do not interfere with each other. The span L of the portion of the bolt that may be bent is shortened, thereby increasing the bending rigidity of the portion.
摘要翻译：要解决的问题：为了提供能够实现容易加工和廉价制造的结构，使螺栓的弯曲最小化，此外，确保轭12c的基部13c与旋转轴的端部之间的联接强度，而没有特别增加的螺栓紧固力。解决方案：螺母30装配并固定到形成在第二凸缘16c中的第二通孔31。构成螺母30的螺杆圆筒部35的前端缘从第二凸缘16c的内表面突出到第一凸缘15c侧。在这方面，螺栓拧紧时，螺杆圆筒部35和第一凸缘15c的前端边缘彼此不干涉。可以弯曲的螺栓部分的跨度L被缩短，从而增加了该部分的弯曲刚度。

8. 发明专利

JP2007231993A Telescopic shaft 审中-公开
标题翻译： TELESCOPIC轴
公开(公告)号：JP2007231993A
公开(公告)日：2007-09-13
申请号：JP2006051420
申请日：2006-02-28
申请人： Nsk Ltd , 日本精工株式会社
发明人： SHIGETA YASUSHI
IPC分类号： F16D3/06 , B62D1/18 , B62D1/19 , B62D1/20
摘要： PROBLEM TO BE SOLVED: To provide a telescopic shaft capable of being expanded or contracted with small frictional resistance and capable of transmitting large rotating torque even when the large rotating torque is applied, and a steering device equipped with the telescopic shaft.
SOLUTION: When the rotating torque between a male intermediate shaft 16B and a female intermediate shaft 16A is equal to or lower than the predetermined torque, an upper surface 561 of a plate spring 56 and a side surface 411 of an axial groove 41 are rolling surfaces of a columnar pin 53, and the columnar pin 53 is rolled, and expansion and contraction action can be performed with the small frictional resistance. When the rotating torque between the male intermediate shaft 16B and the female intermediate shaft 16A is the predetermined torque, an elastic deformation amount of the plate spring 56 is equal to a space δ between the columnar pin 53 and a bottom surface 541 of a pin guide groove 54. As a result, the bottom surface 541 of the pin guide groove 54 and the side surface 411 of the axial groove 41 are rolling surfaces of the columnar pin 53, and the columnar pin 53 is rolled.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种即使在施加大的转矩时也能够以小的摩擦阻力膨胀或收缩并且能够传递大的旋转扭矩的伸缩轴以及配备有伸缩轴的转向装置。解决方案：当阳中间轴16B和母中间轴16A之间的旋转扭矩等于或小于预定扭矩时，板簧56的上表面561和轴向槽41的侧表面411 是柱状销53的滚动面，柱状销53滚动，能够以较小的摩擦阻力进行伸缩动作。当阳中间轴16B和母中间轴16A之间的旋转扭矩为预定扭矩时，板簧56的弹性变形量等于柱形销53与销引导件的底面541之间的空间δ 结果，销引导槽54的底面541和轴向槽41的侧面411是柱状销53的滚动面，并且柱状销53被卷起。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2011169440A Universal joints 有权
标题翻译：通用接头
公开(公告)号：JP2011169440A
公开(公告)日：2011-09-01
申请号：JP2010035608
申请日：2010-02-22
申请人： Nsk Ltd , 日本精工株式会社
发明人： MORIYAMA SEIICHI , SHIGETA YASUSHI , MITA TATSUNORI
IPC分类号： F16D3/26 , B62D1/20 , F16D1/02 , F16D1/04
摘要： PROBLEM TO BE SOLVED: To provide a universal joint which reduces a bending stress produced to a bolt during driving of a vehicle to reduce an average stress produced to the bolt, to thereby improve durability. SOLUTION: When the bolt 81 is tightened with a predetermined tightening torque, a length L2 between the contact positions of the bolt 81 and flange parts 72A, 72B is shortened to a length obtained by subtracting a length L3 from the lower face 812A of a bolt head 812 to the anti-opening side end face of a large diameter shank 811B, from a length L1 between the contact positions of a conventional universal coupling. When a steering wheel 11 is operated to apply a rotational torque to a shaft 6 and a yoke 7, a bending stress proportional to the length L2 between the contact positions of the bolt 81 and flange parts 72A, 72B is applied to the bolt 81, while the length L2 is shortened to the length obtained by subtracting the length L3 of the large diameter shank 811B. The bending stress applied to the bolt 81 is thereby reduced to improve the durability of the bolt 81. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种万向节，其在车辆行驶期间减小对螺栓产生的弯曲应力，以减少对螺栓产生的平均应力，从而提高耐久性。解决方案：当螺栓81以预定的紧固扭矩拧紧时，螺栓81和凸缘部分72A，72B的接触位置之间的长度L2缩短到从下表面812A减去长度L3所获得的长度从常规通用联轴器的接触位置之间的长度L1到大直径杆811B的防开放侧端面的螺栓头812。当操作方向盘11向轴6和轭7施加旋转扭矩时，与螺栓81和凸缘部72A，72B的接触位置之间的长度L2成比例的弯曲应力施加到螺栓81上，而长度L2缩短到通过减去大直径柄811B的长度L3所获得的长度。施加到螺栓81上的弯曲应力由此减小，以提高螺栓81的耐用性。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2011169371A Yoke of universal joint 有权
标题翻译：通用联合
公开(公告)号：JP2011169371A
公开(公告)日：2011-09-01
申请号：JP2010032555
申请日：2010-02-17
申请人： Nsk Ltd , 日本精工株式会社
发明人： SHIGETA YASUSHI
IPC分类号： F16D3/26 , B62D1/20
摘要： PROBLEM TO BE SOLVED: To support a large load applied on a universal joint by increasing the rigidity of an arm part around a bearing hole for pivotally supporting a joint cross.
SOLUTION: Faces 55, 55 on the outer side in the radial direction of a pair of arm parts are pressed inwardly in the radial direction (the direction of a white arrow 56 in Fig.2(b)) by a face-pressing punch of a cylindrical shape, and circumferential edges of bearing holes 521, 521 are work-hardened. Thus, the rigidity of the circumferential edges of the bearing holes 521, 521 of the pair of arm parts is increased, and a large load applied to a universal joint can be supported.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过增加用于枢转地支撑接头十字的轴承孔周围的臂部的刚性来支撑施加在万向接头上的大的载荷。解决方案：一对臂部的径向外侧的面55,55在径向方向（图2（b）中的白色箭头56的方向）上被向内压入，圆筒形的冲压冲头，轴承孔521,521的圆周边缘加工硬化。因此，一对臂部的轴承孔521,521的周缘的刚性增大，能够承受向万向接头施加的大的载荷。版权所有（C）2011，JPO＆INPIT

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