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61. 发明专利

JP2001300676A HOLLOW RACK SHAFT 失效
公开(公告)号：JP2001300676A
公开(公告)日：2001-10-30
申请号：JP2000114340
申请日：2000-04-14
申请人： NSK LTD
发明人： OKUBO KIYOSHI , TSUBOUCHI HIROSHI , WATANABE YASUSHI
IPC分类号： F16H55/26 , B21J5/02 , B21K1/76
摘要： PROBLEM TO BE SOLVED: To prevent the metal flow from being broker on a surface of a rack tooth by uniforming the interval of the metal flow of the rack tooth as much as possible. SOLUTION: This hollow rack shaft is provided with the rack tooth 1d in which the metal flow is not broker on the surface of a tooth flank and on the surface of the back side thereof, and the metal flow is continuously extended along the contour of the surface of the tooth flank. The strength of the rack tooth can be increased, and the weight of the rack shaft can be reduced according to the increase in the strength.

62. 发明专利

JP2001219854A HOLLOW RACK SHAFT, AND MANUFACTURING METHOD THEREFOR 失效
公开(公告)号：JP2001219854A
公开(公告)日：2001-08-14
申请号：JP2000033684
申请日：2000-02-10
申请人： NSK LTD
发明人： OKUBO KIYOSHI , TSUBOUCHI HIROSHI , WATANABE YASUSHI
IPC分类号： B62D3/12 , B21C37/15 , F16H55/26
摘要： PROBLEM TO BE SOLVED: To provide a hollow rack shaft having a tube of a small size and a rack portion of the wide tooth width and of high strength, to provide a hollow rack shaft uneven along the rack and of high strength on a reverse side of the rack portion, and to provide a manufacturing method of these hollow rack shafts. SOLUTION: The hollow rack shaft 10 has a rack tooth in a center thereof and a cylindrical portion in the vicinity of both ends thereof, the tooth width D of the rack tooth is set to be larger than the length C of a chord formed by a surface including a tooth bottom and a circle of the cylindrical portion, and thus, the tooth width is increased, and the strength thereof is also increased. The rack shaft 10 is plastically formed of a plate 1.

63. 发明专利

JP2001065316A ROCKER ARM AND MANUFACTURE THEREOF 失效
公开(公告)号：JP2001065316A
公开(公告)日：2001-03-13
申请号：JP24152599
申请日：1999-08-27
申请人： NSK LTD
发明人： OKUBO KIYOSHI , WATANABE YASUSHI , ABE SHOICHI , TSUBOUCHI HIROSHI
IPC分类号： B21D53/84 , F01L1/18
摘要： PROBLEM TO BE SOLVED: To sufficiently secure strength and durability of a screwing part of an adjust screw and to inexpensively realize a light structure. SOLUTION: This rocker arm 1b is made by bending a sheet of metal plate. In a part where a screw hole 6b into which an adjust screw 7 is screwed is formed at an end part of the rocker arm 1b, a cylinder part 21 is formed by collecting materials of the metal plate. Thickness of the part where the screw hole 6b is formed can be sufficiently increased in both of a shaft direction and a diameter direction.

64. 发明专利

JP2007155120A Oil reservoir forming method for lubricating mechanical element, lubricating mechanical element, pinion, gear, rack, screw shaft, spline shaft and steering device 审中-公开
标题翻译：润滑机械元件油润滑成型方法，润滑机械元件，齿轮，齿轮，齿条，螺丝轴，线轴和转向装置
公开(公告)号：JP2007155120A
公开(公告)日：2007-06-21
申请号：JP2006138766
申请日：2006-05-18
申请人： Nsk Ltd , 日本精工株式会社
发明人： OKADA SHINJI , WATANABE YASUSHI , HARA NAOKI
IPC分类号： F16N1/00 , B21H3/04 , B21H5/00 , B21K1/76 , B23P13/00 , B23P15/14 , F16D3/06 , F16H55/08
摘要： PROBLEM TO BE SOLVED: To provide an oil reservoir forming method for a lubricating mechanical element for efficiently forming a number of oil reservoirs contributive to forming an oil film.
SOLUTION: In the oil reservoir forming method, a spiral grooves 2 is first engraved in a cylindrical pinion raw material 1 and then gear teeth 3 are formed while leaving the bottom of the groove in a region including the spiral groove 2 of the pinion raw material 1. The bottom of the remaining groove is used for oil reservoirs. The number of oil reservoirs are efficiently formed concurrently with the formation of the gear teeth without applying grooving work.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种润滑机械元件的储油器形成方法，用于有效地形成有助于形成油膜的多个储油器。解决方案：在储油器形成方法中，首先在圆筒形小齿轮原料1中刻成螺旋槽2，然后形成齿轮齿3，同时在包括槽的螺旋槽2的区域中留下槽的底部小齿轮原料1.剩余槽的底部用于储油罐。在不进行开槽加工的情况下，与形成齿轮齿同时有效地形成储油器的数量。版权所有（C）2007，JPO＆INPIT

65. 发明专利

JP2006150410A Method for producing transmission member with tooth provided with oil basin and transmission member with tooth produced by this production method 有权
标题翻译：用于生产具有通过该生产方法生产的带有油盆的牙齿和传输构件的传送构件的方法
公开(公告)号：JP2006150410A
公开(公告)日：2006-06-15
申请号：JP2004345035
申请日：2004-11-29
申请人： Nsk Ltd , 日本精工株式会社
发明人： OKADA SHINJI , WATANABE YASUSHI , HARA NAOKI
IPC分类号： B21K1/06 , B21J13/02 , B21K1/30
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a transmission member with tooth provided with an oil basin with which such member as to be difficult to form a groove on a tooth surface in the conventional method can sufficiently be used even in mass-production without raising this cost so much, and a transmission member with the tooth produced by this production method.
SOLUTION: This method for producing the transmission member with the tooth provided with the oil basin is provided with a primitive recessed part forming process for forming a fine screw groove 21 as the original for oil basin on the cylindrical surface of a bar-like blank and a cold forging process for pushing the bar-like blank into a forging die provided with the cross sectional shape complemented with the aimed transmission member with the tooth, and on the surface of the transmission member with the tooth formed with above cold forging process, the trace of screw groove 21 is left and in this result, this trace is made to be used as the oil basin.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于制造具有设置有油盆的齿轮的传动构件的方法，通过该方法可以使用常规方法在齿面上难以形成凹槽的构件，即使在批量生产，而不增加这种成本，以及通过该生产方法生产的具有齿的传动构件。解决方案：这种用设置有油盆的齿的传动构件的制造方法设置有原始的凹部形成工序，在坯条的圆筒面上形成作为原油的细螺纹槽21，类似坯料和冷锻工艺，用于将棒状坯料推入锻造模具中，该锻造模具具有与目标传动部件与齿相配合的横截面形状，并且在传动部件的表面上，齿形成有上述冷锻过程中，留下螺纹槽21的痕迹，并且在该结果中，使该痕迹用作油盆。版权所有（C）2006，JPO＆NCIPI

66. 发明专利

JP2005291386A Tubular worm 审中-公开
标题翻译： TUBULAR WORM
公开(公告)号：JP2005291386A
公开(公告)日：2005-10-20
申请号：JP2004107737
申请日：2004-03-31
申请人： Nsk Ltd , Nsk Steering Systems Co Ltd , Nskステアリングシステムズ株式会社 , 日本精工株式会社
发明人： OKADA SHINJI , WATANABE YASUSHI , HARA NAOKI
IPC分类号： B62D5/04 , F16H55/22
摘要： PROBLEM TO BE SOLVED: To provide a tubular worm formed with smooth tooth tip of a gear without generating bending by rolling a hollow raw material, which is formed hollow inside thereof, for formation.
SOLUTION: Fig.(a) is a cross section of the hollow raw material S, Fig.(b) is formed by narrowing the hollow raw material S, Fig.(c) is formed by rolling after narrowing in multiple stages, and Fig.(d) is formed by pressing an inside diameter spline to the rolled tubular worm. A mark 6 shows the inside diameter spline. Fig.(e) shows final process of grinding outside diameter and machining screw. A mark 7 shows a screw machining part, and a mark 8 shows an outside diameter grinding part. Since the hollow raw material formed hollow inside thereof is rolled for formation, breakdown of tooth tip and bending (tooth tip looks like being broken) are prevented, and tooth shape error and tooth line error are restricted small, and accurate formation is possible.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种形成有齿轮的平滑齿顶的管状蜗杆，而不会通过滚动形成中空的空心原料而产生弯曲而形成。图（a）是中空原料S的剖面图，（b）是通过使中空原料S变窄而形成的，图（c）是在多段变窄后进行轧制而形成的，（d）是通过将内径花键挤压到轧制的管状蠕虫而形成的。标记6表示内径花键。图（e）表示研磨外径和加工螺丝的最终工艺。标记7表示螺丝加工部，标记8表示外径研磨部。由于在其内部形成中空的中空原料被轧制成形，所以防止了齿尖和弯曲的破坏（齿尖看起来像是破裂），并且齿形误差和齿线误差受到限制，并且可以精确地形成。版权所有（C）2006，JPO＆NCIPI

67. 发明专利

JP2005088010A Method for producing joint member, and metallic mold apparatus for the production 有权
标题翻译：用于生产接头构件的方法和用于生产的金属模具装置
公开(公告)号：JP2005088010A
公开(公告)日：2005-04-07
申请号：JP2003320429
申请日：2003-09-11
申请人： Nsk Ltd , Nsk Steering Systems Co Ltd , Nskステアリングシステムズ株式会社 , 日本精工株式会社
发明人： OKUBO KIYOSHI , WATANABE YASUSHI , HARA NAOKI
IPC分类号： F16D3/26 , B21J5/12 , B21J13/02 , B21K1/14
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for producing a high strength joint element or a yoke at a low cost with which a working time is shortened and thus, the working cost and a product cost are reduced without needing such cutting work of a shaft hole (serration groove hole) and cutting-off from the initial time as the ordinary technique, so as not to cut off a metal-flow by cutting as the ordinary work.
SOLUTION: The metallic mold apparatus is composed of a punch 31 having a key-like cross section corresponding to the cutting-off and the serration hole-shape, a die 32 surrounding the outer shell of a blank and a counter punch 33 faced to the punch 31. The die 32 is in a floating state in the axial direction to the punch 31 and the counter punch 33 and also, a part of the inner wall surface of the die 32 can guide the punch 31 and can receive the bending load of the punch.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种以低成本生产高强度接头元件或轭的装置，其工作时间缩短，从而降低了工作成本和产品成本，而不需要这种切割工作的轴孔（锯齿槽孔）和从初始时间切断作为普通技术，以便通过切割作为普通工作不切断金属流。解决方案：金属模具装置由具有对应于切断和锯齿孔形状的键状横截面的冲头31，围绕坯料的外壳的模具32和反冲头33 模具32在冲头31和反冲头33的轴向上处于浮动状态，并且模具32的内壁表面的一部分可以引导冲头31，并且可以接收冲头的弯曲载荷。版权所有（C）2005，JPO＆NCIPI

68. 发明专利

JP2004202559A Tubular parts having bulged part in middle part and method for manufacturing them 审中-公开
标题翻译：具有中间部分的管状部件及其制造方法
公开(公告)号：JP2004202559A
公开(公告)日：2004-07-22
申请号：JP2002376746
申请日：2002-12-26
申请人： Nsk Ltd , 日本精工株式会社
发明人： OKUBO KIYOSHI , WATANABE YASUSHI
IPC分类号： B21D37/08 , B21D39/20 , B21D41/04 , B21D53/88
摘要： PROBLEM TO BE SOLVED: To provide a working method by which tubular parts having a bulged part in the middle part are worked at a low working cost, at short cycle time, by easily maintained equipment and, even when a material to be worked is such an article as liquid leaks, without taking it into consideration.
SOLUTION: In a tubular article 4 formed by expanding which is expanded including a region corresponding to the bulged part to be formed in an expanding and forming stage, a bulged part is formed by pushing out a wall in the above region of the expanded part from the inside with a cam die 23. At this time, the cam die 23 is pushed out by forcing in cam pushing dies 24, 25. After that, by reducing the expanded part except for the bulged part A, the tubular parts having the bulged part in the middle part is obtained.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：提供一种工作方法，其中在中间部分具有凸出部分的管状部件以较低的工作成本加工，在短的周期时间内，通过容易维护的设备，并且即使当要工作就是液体泄漏这样的文章，没有考虑到。解决方案：在通过膨胀而形成的管状物品4中，膨胀部包括与膨胀部形成的膨胀部对应的区域，膨胀部形成在上述区域中的壁部此时，凸轮模具23通过在凸轮推动模具24,25中的迫使被推出。之后，通过减小凸出部分A之外的扩张部分，管状部件获得在中间部分具有凸出部分。版权所有（C）2004，JPO＆NCIPI

69. 发明专利

JP2004017779A Rack shaft and its manufacturing method 有权
公开(公告)号：JP2004017779A
公开(公告)日：2004-01-22
申请号：JP2002174817
申请日：2002-06-14
申请人： Nsk Ltd , 日本精工株式会社
发明人： WATANABE YASUSHI , OKUBO KIYOSHI
IPC分类号： B62D3/12 , B21D53/88 , B23K9/00 , F16H55/26
摘要： PROBLEM TO BE SOLVED: To provide a rack shaft with high quality and at low cost by manufacturing a rack tooth portion without using a gear cutting method and a work forging method, and combining the gear with a rack shaft body member, using an inexpensive facility.
SOLUTION: The rack shaft 1 includes a solid cylindrical body member 2 and a rack plate 3. The body member 2 has a center portion 21 with a flat surface 211 in parallel to the central axis and tow side portions 22 extended to the axis direction from both sides of the portion 21, and is a solid cylindrical as a whole. The rack plate 3 has a front surface 31 on which a rack tooth profile 311 is formed by a flat-plate press molding and a back surface 32 on which a wave form 321 corresponding to the tooth profile 311 is formed, and is mounted on the flat surface 211 of the member 2.
COPYRIGHT: (C)2004,JPO

70. 发明专利

JP2002096137A HELICAL PINION GEAR AND METHOD AND APPARATUS FOR PRODUCING IT 失效
公开(公告)号：JP2002096137A
公开(公告)日：2002-04-02
申请号：JP2000283045
申请日：2000-09-19
申请人： NSK LTD
发明人： OKUBO KIYOSHI , WATANABE YASUSHI , HARA NAOKI
IPC分类号： B21K1/30 , B21J5/02 , B21J5/06 , B21J13/02
摘要： PROBLEM TO BE SOLVED: To make is possible to work both shaped outside peripheral surface and shaped inside peripheral surface of a columnar portion and a helical piston gear portion by plastic forming in one process (i.e., without removing unfinished material from production line) in producing a helical pinion gear. SOLUTION: A lower die 10 of which inner bore surface has configuration matching a helical pinion gear portion 2A and an outside holder 12 with a tapered portion 121 at the upper portion of the lower die, both of which are prepared to form the helical pinion gear portion 2A, and a divided dies 11, each of which has a tapered portion at the outside matching the tapered portion 121, and projection(s) 113 installed inward in order to form a outside peripheral surface of columnar portion, both placed over the lower die 10, are provided. After a pinion gear portion 2A is formed on the blank by the lower die 10, each of the divided dies 11 proceeds inwards guided by each tapered portion 121, resulting in groove formation on the periphery of the blank.

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