公开(公告)号：US08226489B2

公开(公告)日：2012-07-24

申请号：US12677191

申请日：2008-09-22

申请人： Hirokazu Ooba ,  Kazuhiko Yoshida ,  Keisuke Sone

发明人： Hirokazu Ooba ,  Kazuhiko Yoshida ,  Keisuke Sone

IPC分类号： F16D3/223 ,  H05B6/02

CPC分类号： F16D3/2237 ,  C21D1/10 ,  C21D7/04 ,  C21D9/40 ,  C21D2221/00 ,  C22C38/00 ,  F16D3/224 ,  F16D2300/10 ,  Y02P10/253 ,  Y10S464/906

摘要： A constant velocity universal joint has high strength and capable of suppressing deformation caused by quenching at an opening end portion of a track groove of an outer joint member. In an undercut-free constant velocity universal joint in which a track groove in a cup portion of the outer joint member has a hardened layer formed by induction quenching, an opening end surface is protruded by a protruding amount t in an axial direction from a groove bottom of the track groove in a relief surface. The protruding amount t satisfies a relation of t=0.037d to 0.185d when a diameter of a torque transmission ball is represented by d. The opening end surface in a protruded portion and an outer surface of the cup portion continuous to the opening end surface have an unhardened layer free from hardening by quenching.

摘要翻译： 等速万向接头具有高强度并且能够抑制由外部接头构件的轨道槽的开口端部处的淬火引起的变形。 在外接头构件的杯部的轨道槽具有通过感应淬火形成的硬化层的无切削等速万向接头中，开口端面从槽的轴向突出突出量t 轨道凹槽的底部处于浮雕表面。 当转矩传递球的直径由d表示时，突出量t满足t = 0.037d至0.185d的关系。 与开口端面连续的突出部的开口端面和杯部的外表面具有通过淬火而没有硬化的未硬化层。

公开(公告)号：US20110124420A1

公开(公告)日：2011-05-26

申请号：US13055964

申请日：2009-07-13

申请人： Hirokazu Ooba ,  Kazuhiko Yoshida ,  Keisuke Sone ,  Kiyohiro Itou

发明人： Hirokazu Ooba ,  Kazuhiko Yoshida ,  Keisuke Sone ,  Kiyohiro Itou

IPC分类号： F16D3/24 ,  F16C33/44

CPC分类号： F16D3/2245 ,  B23P15/00 ,  B23P2700/11 ,  F16D3/223 ,  F16D2003/22303 ,  F16D2250/00

摘要： To achieve both cost reduction and strength enhancement of a cage by appropriately managing, at the time of forming pockets through a punch-pressing process in a base material made of medium-carbon steel, a size of a secondary fracture portion formed in a shear surface of the base material. Provided is a cage (5) for a constant velocity universal joint, the cage being formed by forming, in a peripheral direction of a cylindrical base material (6) made of medium-carbon steel, pockets (5c) for accommodating torque transmission balls (4) through a punch-pressing process, and hardening the entire base material (6) through quenching, the cage (5) including a shear surface (5c2) left in at least part of each of the pockets (5c) as a result of the punch-pressing process, the shear surface (5c2) including a secondary fracture portion (7) that is formed therein at a time of the punch-pressing process and exhibits a wedge-like shape in cross-section orthogonal to the shear surface (5c2), in which, in the secondary fracture portion (7) in the cross-section orthogonal to the shear surface (5c2), a segment (AB) is 1.0 mm or less in a case where a secondary-fracture distal end portion is represented by A and a foot of a perpendicular from the secondary-fracture distal end portion to the shear surface (5c2) is represented by B.

摘要翻译： 为了通过适当地管理在由中碳钢制成的基材中通过冲压加工方法形成袋的时间来实现成本降低和保持架的强度提高，形成在剪切面中的二次断裂部的尺寸 的基材。 本发明提供一种用于等速万向接头的保持架（5），该保持架通过在由中碳钢制成的圆筒状基材（6）的圆周方向上形成用于容纳转矩传递球的凹部（5c） 如图4所示，通过冲压工艺，并且通过淬火使整个基材（6）硬化，包括留在每个凹穴（5c）的至少一部分中的剪切表面（5c2）的保持架（5）由于 冲压加工过程中，剪切面（5c2）包括在冲压加工过程中形成的二次断裂部分（7），并且在与剪切面垂直的横截面上呈楔形形状（ 5c2），其中在与剪切面（5c2）正交的截面中的二次断裂部（7）中，在二次断裂前端部为 由A表示，并且从次级断裂远端部到th的垂直脚 e剪切面（5c2）由B.

公开(公告)号：US20110003645A1

公开(公告)日：2011-01-06

申请号：US12677191

申请日：2008-09-22

申请人： Hirokazu Ooba ,  Kazuhiko Yoshida ,  Keisuke Sone

发明人： Hirokazu Ooba ,  Kazuhiko Yoshida ,  Keisuke Sone

IPC分类号： F16D3/223 ,  C21D1/10

CPC分类号： F16D3/2237 ,  C21D1/10 ,  C21D7/04 ,  C21D9/40 ,  C21D2221/00 ,  C22C38/00 ,  F16D3/224 ,  F16D2300/10 ,  Y02P10/253 ,  Y10S464/906

摘要： Provided is a constant velocity universal joint having high strength and capable of suppressing deformation caused by quenching at an opening end portion of a track groove of an outer joint member. In an undercut-free constant velocity universal joint in which a track groove (1d) in a cup portion (1a) of the outer joint member has a hardened layer (8a) formed by induction quenching, an opening end surface (1e) is protruded by a protruding amount t in an axial direction from a groove bottom (c) of the track groove (1d) in a relief surface (1f). The protruding amount t satisfies a relation of t=0.037 d to 0.185 d when a diameter of a torque transmission ball is represented by d. The opening end surface (1e) in a protruded portion (1i) and an outer surface (1j) of the cup portion (1a) continuous to the opening end surface (1e) have an unhardened layer free from hardening by quenching.

摘要翻译： 提供一种具有高强度并且能够抑制由外部接头构件的轨道槽的开口端部处的淬火引起的变形的等速万向接头。 在外接头构件的杯部（1a）中的轨道槽（1d）具有通过感应淬火形成的硬化层（8a）的无切削等速万向接头中，开口端面（1e）突出 在凹凸面（1f）中从轨道槽（1d）的槽底（c）沿轴向突出量t。 当转矩传递球的直径由d表示时，突出量t满足t = 0.037d至0.185d的关系。 与开口端面（1e）连续的突出部（1i）和杯部（1a）的外表面（1j）的开口端面（1e）具有通过淬火而没有硬化的未硬化层。

公开(公告)号：US20110212789A1

公开(公告)日：2011-09-01

申请号：US13127561

申请日：2009-11-27

申请人： Hirokazu Ooba ,  Masayuki Kuroda ,  Hisaaki Kura ,  Tatsuro Sugiyama ,  Teruaki Fujio

发明人： Hirokazu Ooba ,  Masayuki Kuroda ,  Hisaaki Kura ,  Tatsuro Sugiyama ,  Teruaki Fujio

IPC分类号： F16D3/223

CPC分类号： F16D3/2233 ,  F16D3/2237 ,  F16D2003/22306

摘要： Wedge angles are formed between mutually facing central track-groove portions (11b, 12b, 21b, 22b) of an outer joint member (1) and an inner joint member (2). Track grooves (11, 12) provided to the outer joint member (1) and track grooves (21, 22) provided to the inner joint member (2) include a first pair of track grooves (11, 21) respectively including the central track-groove portions (11b, 21b) forming therebetween the wedge angle (α) opening to an opening side of the outer joint member (1) under a state in which an operating angle is 0°, and a second pair of track grooves (12, 22) respectively including the central track-groove portions (12b, 22b) oppositely forming therebetween the wedge angle (β) opening to an inner-end side of the outer joint member (1) under the state in which the operating angle is 0° . Both the first track groove (11) and the second track groove (12) of the outer joint member (1) include opening-side track-groove portions (11c, 12c) connected respectively to the central track-groove portions (11b, 12b) directly, each of the opening-side track-groove portions (11c, 12c) being formed in such a shape as to be free from an undercut toward the opening side. Accordingly, it is possible to manufacture at low cost a high-efficient fixed type constant velocity universal joint which involves less torque loss.

摘要翻译： 楔形角形成在外侧接头构件（1）和内侧接头构件（2）的相互面对的中心轨道槽部（11b，12b，21b，22b）之间。 设置在外侧接头部件（1）上的履带槽（11,12）和设置于内侧接头部件（2）的履带槽（21,22）包括：第一对履带槽（11,21），分别包括中心轨道 - 沟槽部分（11b，21b）之间形成在操作角度为0°的状态下向外侧接头构件（1）的开口侧开口的楔角（α）和第二对轨道槽（12 ，22），分别包括在所述外侧接头构件（1）的内侧侧与所述外侧接头构件（1）的内侧侧面相反地形成的中心轨道槽部（12b，22b），所述楔形角（＆amp; bgr） 0°。 外侧接头构件（1）的第一轨道槽（11）和第二轨道槽（12）都分别与中心轨道槽部（11b，12b）连接的开口侧轨道槽部（11c，12c） ），每个开口侧轨道槽部分（11c，12c）形成为朝向开口侧没有底切的形状。 因此，可以低成本地制造涉及较小转矩损失的高效率固定式等速万向接头。

公开(公告)号：US20120211125A1

公开(公告)日：2012-08-23

申请号：US13500140

申请日：2010-10-01

申请人： Kazuhiko Yoshida ,  Mukai Hiroki ,  Hirokazu Ooba

发明人： Kazuhiko Yoshida ,  Mukai Hiroki ,  Hirokazu Ooba

IPC分类号： F16D3/16 ,  F16C3/02

CPC分类号： F16C3/02 ,  F16D3/20 ,  F16D3/2055 ,  F16D3/223 ,  F16D2003/2026 ,  F16D2250/00

摘要： Provided are a hollow shaft capable of increasing a static torsional strength and torsional fatigue strength of a small diameter portion (small diameter portion having a smooth outer peripheral surface) formed near a spline at an end portion of the hollow shaft, and capable of reducing cost, and a constant velocity universal joint using the hollow shaft. A hollow shaft (1) is molded by plastic working from a tubular blank, and subjected to quench hardening treatment. The quench hardening treatment includes carburizing and quenching treatment. The hollow shaft (1) includes a softened section (M) formed in a part of the hollow shaft (1) by local heating treatment after carrying out the carburizing and quenching treatment.

摘要翻译： 提供一种空心轴，其能够增加在中空轴的端部处形成于花键附近的小直径部（具有平滑的外周面的小直径部）的静态扭转强度和扭转疲劳强度，并且能够降低成本 以及使用中空轴的等速万向接头。 空心轴（1）通过从管状坯料的塑性加工而成型，进行淬火硬化处理。 淬火硬化处理包括渗碳和淬火处理。 空心轴（1）在进行渗碳淬火处理后，通过局部加热处理，形成在中空轴（1）的一部分上的软化部（M）。

公开(公告)号：US09856906B2

公开(公告)日：2018-01-02

申请号：US13500140

申请日：2010-10-01

申请人： Kazuhiko Yoshida ,  Hiroki Mukai ,  Hirokazu Ooba

发明人： Kazuhiko Yoshida ,  Hiroki Mukai ,  Hirokazu Ooba

IPC分类号： F16D3/16 ,  F16C3/02 ,  F16D3/20 ,  F16D3/205 ,  F16D3/223 ,  F16D3/202

CPC分类号： F16C3/02 ,  F16D3/20 ,  F16D3/2055 ,  F16D3/223 ,  F16D2003/2026 ,  F16D2250/00

摘要： A hollow shaft, which is usable with a constant velocity universal joint, has an increased static torsional strength and torsional fatigue strength of a small diameter portion (small diameter portion having a smooth outer peripheral surface) formed near a spline at an end portion of the hollow shaft, and has a reduced manufacturing cost. The hollow shaft is molded by plastic working from a tubular blank, and subjected to quench hardening treatment. The quench hardening treatment includes carburizing and quenching treatment. The hollow shaft includes a softened section formed in a part of the hollow shaft by local heating treatment after carrying out the carburizing and quenching treatment.

公开(公告)号：US08998729B2

公开(公告)日：2015-04-07

申请号：US13805386

申请日：2011-06-13

申请人： Hirokazu Ooba

发明人： Hirokazu Ooba

IPC分类号： F16D3/223 ,  F16C1/04 ,  F16D3/2233

CPC分类号： F16C1/04 ,  F16D3/2233 ,  Y10S464/906

摘要： A fixed type constant velocity universal joint has pairs of track grooves, each pair forming a wedge angle (α). The wedge angle (α) includes a wedge angle (α0) formed, when an operating angle is 0°, with respect to each of torque transmitting balls arranged in a joint center plane, and opening to the same side in an axial direction for all pairs of track grooves. Further, the pairs of track grooves are mirror-image symmetrical with each other when the operating angle is 0°.

摘要翻译： 固定式等速万向接头具有成对的轨道槽，每对形成楔角（α）。 楔角（α）包括当操作角度为0°时相对于布置在接头中心平面中的每个扭矩传递滚珠形成的楔角（α0），并且在轴向方向上对于所有的角度 成对的轨道槽。 此外，当操作角度为0°时，成对的轨道槽彼此对称。

公开(公告)号：US20130102397A1

公开(公告)日：2013-04-25

申请号：US13805386

申请日：2011-06-13

申请人： Hirokazu Ooba

发明人： Hirokazu Ooba

IPC分类号： F16C1/04

CPC分类号： F16C1/04 ,  F16D3/2233 ,  Y10S464/906

摘要： In a fixed type constant velocity universal joint (1), pairs of track grooves (3) of an outer joint member (2) and track grooves (5) of an inner joint member (4) each form a wedge angle (α), the wedge angle (α) including a wedge angle (α0) formed, under a state in which an operating angle is 0°, with respect to each of torque transmitting balls (6) arranged in a joint center plane, and opening to the same side in an axial direction in all the pairs of the track grooves (3) and the track grooves (5). Further, the pairs of the track grooves (3) of the outer joint member (2) and the track grooves (5) of the inner joint member (4) are each formed into a shape which is mirror-image symmetrical with each other with respect to the joint center plane under the state in which the operating angle is 0°, the shape of each of the pairs of the track grooves (3) of the outer joint member (2) and the track grooves (5) of the inner joint member (4) being defined in the axial direction so that, at an operating angle formed by the fixed type constant velocity universal joint, the wedge angle (α) reaches 0° first on an opening side in accordance with movement of the torque transmitting balls (6) to the opening side of the outer joint member (2), and then, the wedge angle (α) is directed to a direction opposite to a direction in which the wedge angle (α0) opens, and reversely, the wedge angle (α) reaches 0° first on an inner-end side in accordance with movement of the torque transmitting balls (6) to the inner-end side of the outer joint member (2), and then, the wedge angle (α) is directed to the direction opposite to the direction in which the wedge angle (α0) opens.

摘要翻译： 在固定式等速万向接头（1）中，外接头构件（2）的轨道槽（3）和内接头构件（4）的轨道槽（5）各自形成楔角（α）， 所述楔角（α）包括楔形角（α0），所述楔角（α0）相对于布置在联合中心平面中的每个扭矩传递滚珠（6）在操作角度为0°的状态下形成，并且向其开口 在所有成对的轨道槽（3）和轨道槽（5）中沿轴向方向。 此外，外接头构件（2）的轨道槽（3）和内接头构件（4）的轨道槽（5）的成对分别形成为彼此对称的镜像对称的形状 相对于操作角度为0°的状态下的接合中心面，外侧接头构件（2）的轨道槽（3）和内侧的轨道槽（5）中的每一对的形状 接头构件（4）沿轴向限定，使得在由固定式等速万向接头形成的操作角度下，楔形角（α）根据扭矩传递的移动首先在开口侧达到0° 球（6）到外关节构件（2）的开口侧，然后，楔角（α）指向与楔角（α0）打开的方向相反的方向，反之，楔 角度（α）根据扭矩传递的移动首先在内端侧达到0° （6）到外接头构件（2）的内端侧，然后，楔角（α）指向与楔角（α0）打开的方向相反的方向。