-
公开(公告)号：US20180318973A1
公开(公告)日：2018-11-08
申请号：US15580381
申请日：2016-06-01
申请人： JTEKT CORPORATION
发明人： Takeshi KOYAMA , Masanori KOBAYASHI
IPC分类号： B23P11/02
CPC分类号： B23P11/02 , B23P11/00 , B23P2700/11 , F16C19/466 , F16C21/005 , F16C35/067 , F16C43/04 , F16D3/382 , F16D3/405 , F16D3/41 , F16D2250/0084 , F16D2300/12
摘要： A universal joint includes a bearing including a bearing cup fitted in a bearing hole of a yoke and rolling elements arranged between the bearing cup and a shaft portion of a cross shaft. A method for manufacturing the universal joint includes: simulating a shrunken state in which a sample bearing cup selected from bearing cups in a same lot is fitted in the bearing hole such that only an outside diameter is restrained, by press-fitting the sample bearing cup into a reference hole of a reference jig; measuring a diameter of an inscribed circle inscribed to the rolling elements in the shrunken state; setting an outside diameter of the shaft portion to a required outside diameter according to the diameter of the inscribed circle; and inserting the bearing cup with the rolling elements between the shaft portion having the required outside diameter and the bearing hole.
-
公开(公告)号：US20170350440A1
公开(公告)日：2017-12-07
申请号：US15605033
申请日：2017-05-25
申请人： JTEKT CORPORATION
发明人： Takeshi KOYAMA , Kazushi TAKAHASHI
CPC分类号： F16C3/03 , B05D1/32 , B62D1/16 , B62D1/185 , B62D1/20 , F16C2326/24 , F16D3/06 , F16D2250/0046 , F16D2300/10
摘要： A method of manufacturing a spline telescopic shaft includes a masking step in which, in a prescribed axial-direction region of an intermediate manufacturing product, partial tooth grooves that are equally spaced circumferentially are respectively covered by masking members that are equally spaced circumferentially; a resin coating step in which a resin layer is formed, and inner surfaces of the partial tooth grooves covered by the masking members are left as metal exposed portions that are equally spaced circumferentially; and a coating film forming step in which, in a state where the intermediate manufacturing product provided with the resin layer is centered with respect to a broach via the metal exposed portions, the intermediate manufacturing product and the broach are caused to slide relative to each other in an axial direction by press-fitting such that the resin layer is shaved to form a resin coating film.
-
公开(公告)号：US20170335893A1
公开(公告)日：2017-11-23
申请号：US15581515
申请日：2017-04-28
申请人： JTEKT CORPORATION
CPC分类号： F16D3/387 , F16C3/03 , F16D1/0864 , F16D3/06 , F16D3/40
摘要： A first yoke includes a tubular portion extending in a first direction, a flange, and a pair of arms extending from the flange. Support holes for a joint spider are formed at tips of the respective arms. The arms have respective inner surfaces facing each other in a second direction. Each of the inner surfaces includes a first recessed portion and a second recessed portion as viewed in a third direction orthogonal to the first direction and the second direction. The first recessed portions are recessed such that the distance between the inner surfaces of the arms increases from a start end located closer to an opening edge of each support hole toward an end point located closer to a base end of the arm. Each of the second recessed portions connects the end point to an end surface of a flange so as to form a curved surface.
-
公开(公告)号：US20170219016A1
公开(公告)日：2017-08-03
申请号：US15414724
申请日：2017-01-25
申请人： JTEKT CORPORATION
发明人： Masanori KOBAYASHI , Naoki TSUJI , Takeshi KOYAMA
CPC分类号： F16D3/387 , B62D1/20 , F16C3/03 , F16D1/0847 , F16D1/0864 , F16D1/0894 , F16D2250/0061 , F16D2250/0076
摘要： In a steering system, a first universal joint includes a first yoke coupled to an intermediate shaft. A second universal joint includes a fourth yoke paired with a third yoke coupled to the intermediate shaf and a shaft attachment portion joined to the fourth yoke and in which a bolt insertion hole allowing a pinion shaft to be clamped is formed. When an angle between the intermediate shaf and a steering shaft is set to θ1, an around-axis angle of the first yoke in a rotating direction is set to ω1, and an angle between the intermediate shaft and the pinion shaft is set to θ2, a junction angle between the fourth yoke and the shaft attachment portion in the rotating direction is adjusted to set an around-axis angle of the bolt insertion hole in the rotating direction to a preset angle ω2.
-
5.发明申请Manufacturing Method of Rotating Element, Connecting Structure Between Rotating Element and Rotating Shaft, and Steering Apparatus 审中-公开旋转元件的制造方法，旋转元件与旋转轴之间的连接结构以及转向装置公开(公告)号：US20170009814A1
公开(公告)日：2017-01-12
申请号：US15200958
申请日：2016-07-01
发明人： Taisho HIGUCHI , Takeshi KOYAMA , Taiki YAMAMURA
CPC分类号： F16D3/387 , B23P15/00 , B23P2700/11 , B62D1/02 , B62D1/20 , F16D1/0864 , F16D2300/12
摘要： A manufacturing method of a rotating element including a cylindrical fitting portion having a pair of circumferential end portions forming an axial slit between the circumferential end portions, the cylindrical fitting portion being serration-fitted to a rotating shaft, includes: clamping the fitting portion by a clamp jig so that the fitting portion is elastically deformed in an elliptical shape; forming a female serration arranged in an elliptical shape by use of a tool having an elliptical section, the female serration being formed on an inner peripheral surface of the fitting portion elastically deformed in the elliptical shape; and releasing the clamping by the clamp jig so that the arrangement of the female serration is changed to a perfect-circle shape from the elliptical shape.
摘要翻译： 一种旋转元件的制造方法，其特征在于，具有：圆筒状嵌合部，其具有在所述周向端部之间形成有轴向狭缝的一对周向端部，所述圆筒状嵌合部与所述旋转轴相啮合，所述圆筒状嵌合部包括： 夹具，使得嵌合部弹性变形为椭圆形; 通过使用具有椭圆形截面的工具形成椭圆形的阴螺纹，所述凹形锯齿形成在弹性变形为椭圆形的装配部分的内周面上; 并且通过夹具夹紧来释放夹紧，使得母齿轮的布置从椭圆形变为正圆形状。
-
6.发明申请公开(公告)号：US20150275981A1
公开(公告)日：2015-10-01
申请号：US14663157
申请日：2015-03-19
申请人： JTEKT CORPORATION
CPC分类号： F16D3/405 , F16C43/04 , F16C2361/41 , F16D3/382 , F16D3/385 , F16D3/41 , F16D2300/12 , Y10T29/49679 , Y10T29/53104
摘要： A universal joint includes: a pair of yokes each including a pair of arms in each of which a bearing hole is formed; four bearings each including a bearing cup press-fitted into the bearing hole and a plurality of needle rollers; and a joint spider including four shafts respectively supported by the bearings. A clinched portion that hinders the bearing cup from slipping out of the bearing hole is formed at the peripheral edge of the bearing hole. In the universal joint, the clinching amount for forming the clinched portion is set in accordance with a radial clearance, which is formed between the shaft of the joint spider and the needle rollers, to adjust the size of the radial clearance.
摘要翻译： 万向接头包括：一对轭，每个轭包括一对臂，每个臂形成有轴承孔; 四个轴承各自包括压入轴承孔中的轴承杯和多个滚针; 以及包括分别由轴承支撑的四个轴的联合星形轮。 阻碍轴承杯滑出轴承孔的夹紧部分形成在轴承孔的周边边缘处。 在万向接头中，用于形成夹紧部分的紧固量根据形成在接头轮的轴和滚针之间的径向间隙来设定，以调节径向间隙的尺寸。
-
公开(公告)号：US20190309802A1
公开(公告)日：2019-10-10
申请号：US16448644
申请日：2019-06-21
申请人： JTEKT CORPORATION
发明人： Masanori KOBAYASHI , Naoki TSUJI , Takeshi KOYAMA
摘要： In a method for assembling a steering system including a first universal joint having a first yoke coupled to an intermediate shaft, a second universal joint having a fourth yoke paired with a third yoke coupled to the intermediate shaft and a shaft attachment portion joined to the fourth yoke and in which a bolt insertion hole allowing a pinion shaft to be clamped is formed, an angle between the intermediate shaft and a steering shaft is set to θ1. An around-axis angle of the first yoke in a rotating direction is set to ω1, and an angle between the intermediate shaft and the pinion shaft is set to θ2. A junction angle between the fourth yoke and the shaft attachment portion in the rotating direction is adjusted to set an around-axis angle of the bolt insertion hole in the rotating direction to a preset angle ω2.
-
公开(公告)号：US20180257694A1
公开(公告)日：2018-09-13
申请号：US15903459
申请日：2018-02-23
申请人： JTEKT CORPORATION
发明人： Takeshi KOYAMA
CPC分类号： B62D1/19 , B62D1/16 , B62D1/20 , F16C3/02 , F16C3/023 , F16C3/026 , F16C3/03 , F16C7/06 , F16C2326/24 , F16D3/06 , F16D3/227 , F16D3/387
摘要： A shaft has a central axis and includes first and second members that are identical in shape and that form a shaft portion for providing one end of the shaft in an axial direction that the central axis extends in. Each of the first and second members includes a plate and an arm portion. The plates extend in the axial direction. The arm portions are located closer to the end of the shaft than the plates and are located farther from the central axis than the plates. The plates face each other across the central axis. The arm portions are couplable with a joint spider.
-
公开(公告)号：US20140370994A1
公开(公告)日：2014-12-18
申请号：US14306758
申请日：2014-06-17
摘要： A cross shaft joint includes a bearing cup, a cross shaft, and a joint yoke. The bearing cup includes a cylindrical portion in which an opening portion for receiving a shaft portion is formed in one end of the cylindrical portion in an axis direction, and a bottom portion that closes the other end of the cylindrical portion in the axis direction. The bearing cup is press-fitted into the fitting hole and supports the shaft portion through a rolling element so that the shaft portion is able to rotate. The bearing cup is fitted onto the shaft portion inside the fitting hole and holds the rolling element with the shaft portion. A diameter of an inner peripheral surface of the cylindrical portion is smaller on the opening portion side than the bottom portion side in a free state of the bearing cup before being press-fitted into the fitting hole.
摘要翻译： 横轴接头包括轴承座，横轴和接头轭。 轴承杯包括圆筒部，在该圆筒部中，在圆筒部的轴向的一端形成有用于容纳轴部的开口部，并且在轴向上封闭圆筒部的另一端的底部。 轴承杯被压配合到装配孔中并且通过滚动元件支撑轴部，使得轴部能够旋转。 将轴承杯安装在装配孔内的轴部上，并将滚动体与轴部保持在一起。 圆筒部的内周面的直径在被压配合到嵌合孔中之前，在轴承杯的自由状态下在开口部侧比底部侧小。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.014 秒)
