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41. 发明专利

JP2000202721A MANUFACTURE OF UNIVERSAL JOINT FORK 失效
公开(公告)号：JP2000202721A
公开(公告)日：2000-07-25
申请号：JP9943099
申请日：1999-04-06
申请人： NSK LTD
发明人： OKUBO KIYOSHI , WATANABE YASUSHI , YOKOI KOICHI , SAWAI HIROYUKI
IPC分类号： B23P15/00 , F16D3/26
摘要： PROBLEM TO BE SOLVED: To reduce the manhour and decrease the length of raw material to improve yield of the material by increasing the board thickness of at least a portion of a lug piece corresponding to the female screw part by punching or platic working suh as compressing working or the like. SOLUTION: The sectional portions of root parts 21, 22a, 22b of tubs 4 forming fork branch parts are pressed as indicated by a broken line to be plastic deformed so as to improve surface roughness. Secondly, in at least one side lug piece of a pair of lug pieces 7, that is, in a portion corresponding to a screw hole to be bored in the post processing, a small-diameter punch is driven from one side to form a projection 9 on the opposite side. Subsequently, bending is performed to form a hub tubular part 11, and the paired lug pieces 7, 7 are made opposite to each other substantially parallel to the radial/ direction from the hub tubular part 11. A bolt insert hole and a seat is formed on one of the lug pieces 7, 7, and a screw hole screw-engaged with the bolt screw part is bored in the other thereof to complete a fork.

42. 发明专利

JP2012107756A Method of machining universal joint 审中-公开
标题翻译：加工通用接头的方法
公开(公告)号：JP2012107756A
公开(公告)日：2012-06-07
申请号：JP2012034582
申请日：2012-02-20
申请人： Nsk Ltd , 日本精工株式会社
发明人： KIYOTA HARUHIKO , KATO HIROSHI , HARUNAGA MASAHIRO , ARAMAKI HIROTOSHI , WATANABE YASUSHI
IPC分类号： F16D3/26 , B62D1/20 , F16D1/08
摘要： PROBLEM TO BE SOLVED: To provide a universal joint capable of transmitting a large rotation torque by reducing a bending stress generated in a bolt, reducing an average stress generated in the bolt, and enlarging an allowable stress amplitude.SOLUTION: Flanges 54A, 54B are elastically deformed by clamping from a longitudinal direction of Fig.3 with clamping fixtures 71 for machining, and deformation corresponding to the condition in which a male serration 61 of a shaft 6 is fastened by a female serration 531 is generated in the flanges 54A, 54B. In this state, bolt holes 541A, 541B, the seat surface 542A of the flange 54A, and the seat surface 542B of the flange 54B are machined on the flanges 54A, 54B. As a result, the bolt holes 541A, 541B are (concentrically) formed on the same axis line, and the seat surface 542A and the seat surface 542B are formed orthogonally to the axis line of the bolt holes 541A, 541B.
摘要翻译：要解决的问题：提供一种能够通过减小在螺栓中产生的弯曲应力来传递大的旋转扭矩的万向接头，减少在螺栓中产生的平均应力，并且增大容许应力幅度。解决方案：法兰54A，54B通过夹紧从图3的纵向方向弹性变形，夹紧夹具71用于机械加工，并且变形对应于轴6的雄性锯齿61由母体在凸缘54A，54B中产生锯齿531。在该状态下，在凸缘54A，54B上加工螺栓孔541A，541B，凸缘54A的座面542A和凸缘54B的座面542B。结果，螺栓孔541A，541B（同心）形成在同一轴线上，并且座面542A和座面542B与螺栓孔541A，541B的轴线正交地形成。版权所有（C）2012，JPO＆INPIT

43. 发明专利

JP2006207639A Manufacturing method of female spline shaft with oil reservoir and female spline shaft manufactured thereby 审中-公开
标题翻译：具有油储存器和女性线轴的女性线轴的制造方法制造
公开(公告)号：JP2006207639A
公开(公告)日：2006-08-10
申请号：JP2005017935
申请日：2005-01-26
申请人： Nsk Ltd , 日本精工株式会社
发明人： WATANABE YASUSHI , MORIYAMA SEIICHI , HIDAKA HIDEKI
IPC分类号： F16D3/06
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a female spline shaft with an oil reservoir which prevents large increase in manufacturing costs and enhances lubricant retentivity and which is suitable for mass production, and a female spline shaft manufactured thereby.
SOLUTION: In a peripheral groove 32 formed in a state of an intermediate material W1, a groove width B and a groove depth D are reduced to be left as traces even after forming a female spline 34 by a die, which function as an oil sump 35 of lubricating oil. Whenever an extendable shaft relatively slides, therefore, the lubricating oil from the oil reservoir 35 is supplied to a tooth surface of the spline so as to secure lubricating performance.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种具有储油器的阴花键轴的制造方法，其防止制造成本的大幅度增加并且提高润滑剂的保持性并且适合于批量生产，以及由此制造的内花键轴。解决方案：在以中间材料W1的状态形成的周向槽32中，即使在通过模具形成阴花键34之后，槽宽度B和槽深度D也被减小，作为痕迹，其作为润滑油的油底壳35。因此，当可延伸轴相对滑动时，来自储油器35的润滑油被供给到花键的齿面以确保润滑性能。版权所有（C）2006，JPO＆NCIPI

44. 发明专利

JP2005113936A Joint member and its machining method 有权
标题翻译：联合会员及其加工方法
公开(公告)号：JP2005113936A
公开(公告)日：2005-04-28
申请号：JP2003345002
申请日：2003-10-02
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 , B21J5/06 , B21K1/14
摘要： PROBLEM TO BE SOLVED: To reduce a machining time and thus reduce machining cost and product cost by eliminating the need for conventional cutting work starting in the state in which no shaft hole (serration groove hole) and cut split exist in machining a joint element or a yoke and to improve the strength of the joint element or the yoke by avoiding the cutting of a metal flow as in the conventional cutting work.
SOLUTION: The joint member comprises the cut split 13 provided near the base end, a tubular joint cylinder portion 11 having the shaft hole for fitting a shaft, a pair of flange portions 16, 17 provided integrally with the joint cylinder portion 11 with the cut split 13 therebetween, a thread hole 18 formed in one of the flange portions 16, 17, and a through-hole 19 concentrically formed in the other flange portion, through which a bolt to be threaded to the thread hole 18 is inserted. The shaft hole and the cut split 13 are formed at the same time by forging.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了减少加工时间，从而通过消除对在机械加工中不存在轴孔（锯齿槽孔）和切割分离的状态开始的常规切削加工的需要而降低加工成本和产品成本关节元件或轭，并且通过避免如常规切割加工中的金属流切割而提高接头元件或轭的强度。解决方案：接头构件包括设置在基端附近的切口13，具有用于安装轴的轴孔的管状接头圆筒部11，与接头圆筒部11一体设置的一对凸缘部16,17 在其间具有切割部分13，形成在一个凸缘部分16,17中的螺纹孔18和同心地形成在另一个凸缘部分中的通孔19，螺纹连接到螺纹孔18的螺栓穿过该孔。同时通过锻造同时形成轴孔和切断部13。版权所有（C）2005，JPO＆NCIPI

45. 发明专利

JP2005088084A Rocker arm and its manufacturing method 审中-公开
标题翻译：摇臂ARM及其制造方法
公开(公告)号：JP2005088084A
公开(公告)日：2005-04-07
申请号：JP2004349901
申请日：2004-12-02
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： ABE SHOICHI , OKUBO KIYOSHI , WATANABE YASUSHI , OSHIMA TAKANORI
IPC分类号： F01L1/18 , B21K3/00
CPC分类号： B21K1/205 , F01L2103/01
摘要： PROBLEM TO BE SOLVED: To improve an engine performance by incorporating a rocker arm, which is made by cold-forging raw materials made of metal wire rods, into the engine.
SOLUTION: Cold forging is performed to raw materials made of metal wire rods cut to a predetermined length so as to make a second intermediate raw material 34b which has a pair of side wall sections 2a and a base section 39 connecting each end portion in crosswise direction of the side walls 2a. Each first and second connection part is formed by punch working performed to the base section 39 of the second intermediate raw material 34b. When it is assumed that a roller 35 is deposed at a position corresponding to the position where the roller 35 should be deposed in a rocker arm inside the second intermediate raw material 34b where the punch working is to be performed, the roller 35 is made not to interfere with the base section 39.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过将通过将锻造由金属线棒制成的原材料制成的摇臂结合到发动机中来提高发动机性能。解决方案：对由切割成预定长度的金属线材制成的原材料进行冷锻，以制成具有一对侧壁部分2a的第二中间原料34b和连接每个端部的基部39 在侧壁2a的横向方向上。每个第一和第二连接部分通过对第二中间原料34b的基部39的冲压加工形成。当假设辊35被放置在与要进行冲压加工的第二中间原料34b内的摇臂内的辊35所在的位置对应的位置时，不进行辊35 干扰基地区39.版权所有（C）2005，JPO＆NCIPI

46. 发明专利

JP2005000960A Rocker arm and its production method 审中-公开
标题翻译：摇臂ARM及其生产方法
公开(公告)号：JP2005000960A
公开(公告)日：2005-01-06
申请号：JP2003168250
申请日：2003-06-12
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： ABE SHOICHI , OKUBO KIYOSHI , WATANABE YASUSHI , OSHIMA TAKANORI
IPC分类号： F01L1/18 , B21J13/02 , B21K1/14
CPC分类号： B21K1/205
摘要： PROBLEM TO BE SOLVED: To improve the performance of an engine incorporating a rocker arm produced by applying cold-forging to a metallic wire rod-made blank.
SOLUTION: The blank obtained by cutting off the metallic wire rod into a prescribed length is pressed from both sides in the axial direction of the blank, so that cold-forging is applied to the blank and a barrel-shaped first intermediate blank 33 having the maximum diameter at the axially intermediate part is produced. Successively, the cold-forging is applied to the first intermediate blank 33 by pressing the blank 33 from both sides in the diametrical direction of the first intermediate blank 33, and a second intermediate blank 34b provided with one pair of side wall parts 2a and a base part 39 connecting both of one end parts of both side wall parts 2a in the width direction is produced. When the cold-forging is performed, burr on the outer peripheral side is not caused.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提高包含通过将金属线棒制造的坯料应用冷锻而制成的摇臂的发动机的性能。解决方案：将通过将金属线材切割成规定长度而获得的坯料从坯料的轴向两侧挤压，从而将冷锻施加到坯料上，并将桶状第一中间坯料 33产生在轴向中间部分处具有最大直径。接下来，通过从第一中间坯料33的直径方向的两侧按压坯料33将冷锻施加到第一中间坯料33，以及设置有一对侧壁部2a和第二中间坯料33的第二中间坯料34b 制造在宽度方向连接两个侧壁部2a的一个端部的基部39。当进行冷锻时，不会引起外周侧的毛刺。版权所有（C）2005，JPO＆NCIPI

47. 发明专利

JP2004358538A Rocker arm manufacturing method 审中-公开
公开(公告)号：JP2004358538A
公开(公告)日：2004-12-24
申请号：JP2003162655
申请日：2003-06-06
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： ABE SHOICHI , OKUBO KIYOSHI , WATANABE YASUSHI , OSHIMA TAKANORI
IPC分类号： B21K1/14 , B21J13/02
CPC分类号： B21K1/205 , F01L2103/01
摘要： PROBLEM TO BE SOLVED: To provide a lightweight rocker arm at a low cost.
SOLUTION: A columnar stock which is obtained by cutting to a predetermined length is compressed in the axial direction in a second step of forming a barrel-shaped first intermediate stock 33 with the maximum diameter at an intermediate portion thereof in the axial direction. Next, the first intermediate stock 33 is compressed from both sides in the radial direction of the first intermediate stock 33 between a movable die and a fixed die to form a second intermediate stock 34a having rough shape and dimensions of the rocker arm. Each side wall part 2a to constitute the second intermediate stock 34a is formed in a substantially triangular shape.
COPYRIGHT: (C)2005,JPO&NCIPI

48. 发明专利

JP2004223616A Method for manufacturing yoke for universal joint 有权
标题翻译：用于制造通用接头的方法
公开(公告)号：JP2004223616A
公开(公告)日：2004-08-12
申请号：JP2004122921
申请日：2004-04-19
申请人： Nsk Ltd , 日本精工株式会社
发明人： WATANABE YASUSHI , OKUBO KIYOSHI
IPC分类号： F16D3/26 , B21D28/16 , B21D53/10
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a york for universal joint with which the processing of round holes 4, 4 formed at the tip end part of arm parts 3, 3 pivotally supporting the end parts of a crossing shaft 9 is facilitated.
SOLUTION: The york 1 is manufactured by applying a press-processing to a metallic plate. The round holes 4, 4 formed at the tip end parts of respective arm parts 3, 3, are formed with blanking processing with the press.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：解决问题的方案：提供一种用于万向接头制造方法，其中形成在臂部件3,3的末端部分处的圆孔4 4的加工枢转地支撑交叉轴的端部 9便利。解决方案：纽约1是通过对金属板进行冲压加工来制造的。形成在各个臂部3,3的末端部的圆孔4,4形成有冲压加工。版权所有（C）2004，JPO＆NCIPI

49. 发明专利

JP2004044720A Rack shaft and its manufacturing method 审中-公开
公开(公告)号：JP2004044720A
公开(公告)日：2004-02-12
申请号：JP2002204135
申请日：2002-07-12
申请人： Nsk Ltd , 日本精工株式会社
发明人： OKUBO KIYOSHI , WATANABE YASUSHI
IPC分类号： B62D3/12 , B21D17/02 , B21D39/00 , B21D53/88 , B23K9/00 , F16H55/26
摘要： PROBLEM TO BE SOLVED: To provide an accurate and inexpensive rack shaft that can be manufactured by using inexpensive facilities by manufacturing a rack plate without depending on a machining gear cutting method and a complex forging method and then connecting the rack plate to a rack shaft body member.
SOLUTION: The rack shaft 1 comprises a hollow, cylindrical body member 2 and the rack plate 3. The body member 2 comprises: a central section 21 having a flat surface 211 in parallel with a center shaft; and two side sections 22 being extended in an axial direction from both the sides of the central section 21. The body member 2 is in a hollow, cylindrical shape as a whole. The rack plate 3 comprises: a front surface 31 where a rack tooth form 311 is formed by a press forming method of a flat plate; and a back surface 32 where a corrugation 321 corresponding to the rack tooth form 311 is formed. The rack plate 3 is mounted onto the flat surface 211 in the body member 2.
COPYRIGHT: (C)2004,JPO

50. 发明专利

JP2001293621A MANUFACTURING METHOD OF RACK TEETH DIE FOR MOLDING RACK TEETH OF HOLLOW RACK SHAFT 失效
公开(公告)号：JP2001293621A
公开(公告)日：2001-10-23
申请号：JP2000114371
申请日：2000-04-14
申请人： NSK LTD
发明人： OKUBO KIYOSHI , TSUBOUCHI HIROSHI , WATANABE YASUSHI
IPC分类号： B23H9/12 , B23H9/00
摘要： PROBLEM TO BE SOLVED: To provide a processing method of a rack teeth die and a rear uneven die having high degree of accuracy, easily correctable, hard to be broken and allowing easy manufacture of the corrected die. SOLUTION: A material for the die is subjected to wire-cut electric discharge machining in a immersed state in oily electric discharge machining liquid, and imparted with complementary shape of the rack teeth of the rack shaft thereto. The material for the die is comprised of a plurality of segment materials 21 which are subjected to the wire-cut electric discharge machining in an assembled state in the same way as the die for molding the rack teeth. The complementary shapes of each opposing teeth flanks of the rack teeth of the hollow rack shaft molded by this process are imparted to each of the segment materials.

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