公开(公告)号：US20110034255A1

公开(公告)日：2011-02-10

申请号：US12988661

申请日：2009-05-07

申请人： Tomoshige Kobayashi ,  Kenta Yamazaki ,  Teruaki Fujio

发明人： Tomoshige Kobayashi ,  Kenta Yamazaki ,  Teruaki Fujio

IPC分类号： F16D3/16 ,  F16D3/224

CPC分类号： F16D3/2237 ,  F16D3/223 ,  F16D3/2245 ,  F16D2003/22309 ,  F16D2250/00 ,  F16D2300/06 ,  F16D2300/10

摘要： Provided is a fixed type constant velocity universal joint capable of securing a ball groove depth larger in comparison with that of conventional products and enhancing performance without an increase in a “force of pushing out balls in an axial direction”, the force having an influence on joint efficiency. A ratio (F/PCR) of an offset amount F to a length (PCR) of a segment connecting the center of each of the guide grooves (22, 25) and a center of each of balls (27) to each other ranges from 0.045 to 0.065. A ratio (αt/α) ranges from 0.045 to 0.065 on a premise that an angle formed between the following is αt: a segment connecting a center of an outer surface of a retainer (28) and the center of each of the balls to each other; and the segment connecting the center of each of the guide grooves of the outer joint member and the center of each of the balls to each other, that an angle formed between the following is αc: a line connecting the center of the outer surface of the retainer and the center of each of the balls to each other; and a line connecting a joint center and the center of each of the balls to each other, and that a total of the angles is α.

摘要翻译： 提供一种固定式等速万向接头，其能够确保与常规产品相比更大的球槽深度，并且在不增加“沿轴向推出球的力”的情况下提高性能，该力对 联合效率。 偏移量F与连接每个引导槽（22,25）的中心和每个球（27）的中心的段的长度（PCR）的比率（F / PCR）范围从 0.045〜0.065。 在以下形成的角度为αt的情况下，比率（αt/α）为0.045〜0.065，将保持器（28）的外表面的中心与每个球的中心连接到每个 其他; 以及将外侧接头构件的每个引导槽的中心与每个球的中心彼此连接的区段，以下形成的角度为αc：连接外侧接头构件的外表面的中心的线 保持器和每个球的中心彼此; 以及将每个球的接合中心和中心彼此连接的线，并且总共的角度为α。

公开(公告)号：US08267802B2

公开(公告)日：2012-09-18

申请号：US12988661

申请日：2009-05-07

申请人： Tomoshige Kobayashi ,  Kenta Yamazaki ,  Teruaki Fujio

发明人： Tomoshige Kobayashi ,  Kenta Yamazaki ,  Teruaki Fujio

IPC分类号： F16D3/224

CPC分类号： F16D3/2237 ,  F16D3/223 ,  F16D3/2245 ,  F16D2003/22309 ,  F16D2250/00 ,  F16D2300/06 ,  F16D2300/10

摘要： A fixed type constant velocity universal joint is capable of securing a ball groove depth larger than conventional products and enhancing performance without an increase in a “force of pushing out balls in an axial direction”, the force having an influence on joint efficiency. In the fixed type constant velocity universal joint, a center of each of a plurality of guide grooves of an outer joint member and a center of each of a plurality of guide grooves of an inner joint member are offset with respect to a spherical surface center of an inner surface and a spherical surface center of an outer surface. A ratio (F/PCR) of an offset amount F to a length of a segment (PCR) ranges from 0.045 to 0.065. A ratio (αt/α) when an angle α is the total of an angle αt and an angle αc ranges from 0.45 to 0.65.

摘要翻译： 固定式等速万向接头能够确保比常规产品更大的球槽深度，并且在不增加“沿轴向推出球的力”的情况下提高性能，该力对联合效率有影响。 在固定式等速万向接头中，外接头构件的多个引导槽的中心和内侧接头构件的多个引导槽的中心各自的中心相对于 内表面和外表面的球面中心。 偏移量F与片段长度（PCR）的比率（F / PCR）为0.045〜0.065。 当角度α是角度αt和角度αc的总和时，比率（αt/α）在0.45至0.65的范围内。

公开(公告)号：US08172689B2

公开(公告)日：2012-05-08

申请号：US12523094

申请日：2008-01-07

申请人： Tomoshige Kobayashi ,  Teruaki Fujio ,  Hisaaki Kura ,  Shin Tomogami ,  Takeshi Kohara

发明人： Tomoshige Kobayashi ,  Teruaki Fujio ,  Hisaaki Kura ,  Shin Tomogami ,  Takeshi Kohara

IPC分类号： F16D3/224

CPC分类号： F16D3/2237 ,  F16D3/2245 ,  F16D2300/06 ,  F16D2300/10 ,  Y10S464/906

摘要： A fixed-type constant velocity universal joint can sufficiently interpose a lubricant between a torque transmitting ball and a guide groove, and reduce frictional force. The fixed-type constant velocity universal joint of the present invention includes an outer joint member 1 that is filled with a lubricant and on which a guide groove 1b that extends in an axial direction is formed on a spherical inner circumferential surface 1a, an inner joint member 2 provided on an inner diameter side of the outer joint member 1 and on which a guide groove 2b that extends in the axial direction is formed on a spherical outer circumferential surface 2a, a torque transmitting ball 3 interposed between opposing guide grooves 1b and 2b of the outer joint member 1 and the inner joint member 2 such as to roll freely, and a cage 4 that holds each ball 3. Numerous miniscule recesses are randomly formed on a surface of the ball 3.

摘要翻译： 固定式等速万向接头可以在转矩传递球和导向槽之间充分地插入润滑剂，并且减小摩擦力。 本发明的固定式等速万向接头包括：外接头构件1，其被填充有润滑剂，并且在轴向上形成有沿轴向延伸的引导槽1b，其形成在球形内周面1a上，内接头 构件2设置在外侧接头构件1的内径侧，并且在球面外周面2a上形成有沿轴向延伸的引导槽2b，插入在相对的引导槽1b和2b之间的扭矩传递滚珠3 的外侧接合部件1和内侧接头部件2，以及保持各球3的保持架4，在球3的表面上随机地形成有许多微小的凹部。

公开(公告)号：US20100099504A1

公开(公告)日：2010-04-22

申请号：US12523094

申请日：2008-01-07

申请人： Tomoshige Kobayashi ,  Teruaki Fujio ,  Hisaaki Kura ,  Shin Tomogami ,  Takeshi Kohara

发明人： Tomoshige Kobayashi ,  Teruaki Fujio ,  Hisaaki Kura ,  Shin Tomogami ,  Takeshi Kohara

IPC分类号： F16D3/223

CPC分类号： F16D3/2237 ,  F16D3/2245 ,  F16D2300/06 ,  F16D2300/10 ,  Y10S464/906

摘要： The present invention provides a fixed-type constant velocity universal joint that can sufficiently interpose a lubricant between a torque transmitting ball and a guide groove, and reduce frictional force. The fixed-type constant velocity universal joint of the present invention includes an outer joint member 1 that is filled with a lubricant and on which a guide groove 1b that extends in an axial direction is formed on a spherical inner circumferential surface 1a, an inner joint member 2 provided on an inner diameter side of the outer joint member 1 and on which a guide groove 2b that extends in the axial direction is formed on a spherical outer circumferential surface 2a, a torque transmitting ball 3 interposed between opposing guide grooves 1b and 2b of the outer joint member 1 and the inner joint member 2 such as to roll freely, and a cage 4 that holds each ball 3. Numerous miniscule recesses are randomly formed on a surface of the ball 3.

摘要翻译： 本发明提供一种固定式等速万向接头，其可以在扭矩传递球和引导槽之间充分地插入润滑剂，并且减小摩擦力。 本发明的固定式等速万向接头包括：外接头构件1，其被填充有润滑剂，并且在轴向上形成有沿轴向延伸的引导槽1b，其形成在球形内周面1a上，内接头 构件2设置在外侧接头构件1的内径侧，并且在球面外周面2a上形成有沿轴向延伸的引导槽2b，插入在相对的引导槽1b和2b之间的扭矩传递滚珠3 的外侧接合部件1和内侧接头部件2，以及保持各球3的保持架4，在球3的表面上随机地形成有许多微小的凹部。

公开(公告)号：US20100087261A1

公开(公告)日：2010-04-08

申请号：US12525705

申请日：2008-01-30

申请人： Hisaaki Kura ,  Shin Tomogami ,  Tomoshige Kobayashi ,  Teruaki Fujio ,  Takeshi Kohara ,  Tomoaki Kaneko

发明人： Hisaaki Kura ,  Shin Tomogami ,  Tomoshige Kobayashi ,  Teruaki Fujio ,  Takeshi Kohara ,  Tomoaki Kaneko

IPC分类号： F16D3/20

CPC分类号： F16D3/2237 ,  F16D3/2245 ,  F16D2003/22309 ,  F16D2250/00 ,  F16D2300/10 ,  Y10S464/906

摘要： To increase a torque transmission efficiency without involving significant modification of a structure of a joint. A fixed type constant velocity universal joint includes: an outer joint member (12) having an inner spherical surface (10) in which a plurality of track grooves (11) extending in an axial direction are formed; an inner joint member (15) having an outer spherical surface (13) in which a plurality of track grooves (14) extending in the axial direction while paired with the track grooves (11) of the outer joint member (12) are formed; a plurality of balls (16) interposed between the track grooves (11, 14) of each of the outer joint member (12) and the inner joint member (15), for transmitting a torque; and a cage (17) interposed between the inner spherical surface (10) of the outer joint member (12) and the outer spherical surface (13) of the inner joint member (15), for holding the balls (16), the outer joint member (12) and the inner joint member (15) each having a center curvature of the track grooves (11, 14) being offset from each other in a direction opposite to the axial direction by an equal distance with respect to a joint center, in which: a PCD gap (2×m) in a ball track formed between the track grooves (11, 14) of each of the outer joint member (12) and the inner joint member (15) is set to equal to or larger than 25 μm; a spherical surface gap (2×n1) formed between the outer spherical surface (13) of the inner joint member (15) and an inner spherical surface (19) of the cage (17) is set to equal to or larger than 40 μm; and a spherical surface gap (2×n2) formed between an outer spherical surface (18) of the cage (17) and the inner spherical surface (10) of the outer joint member (12) is set to equal to or larger than 40 μm.

摘要翻译： 为了提高转矩传递效率，而不涉及对接头结构的显着修改。 固定式等速万向接头包括：具有内球面（10）的外接头构件（12），多个沿轴向延伸的轨道槽（11）形成在其中; 形成具有外球面（13）的内接头构件（15），多个轨道槽（14）沿轴向延伸，同时与外接头构件（12）的轨道槽（11）成对配置; 插入在所述外侧接头构件（12）和所述内侧接头构件（15）的所述轨道槽（11,14）之间的多个球（16），用于传递转矩; 以及插入在所述外侧接头构件（12）的内侧球面（10）与所述内侧接头构件（15）的外侧球面（13）之间的保持架（17），用于保持所述球（16），所述外侧 每个具有轨道槽（11,14）的中心曲率的接头构件（12）和内侧接头构件（15）在与轴向方向相反的方向上彼此相对于关节中心相等距离 其特征在于：形成在所述外侧接头构件（12）和所述内侧接头构件（15）的轨道槽（11,14）之间的球轨道中的PCD间隙（2×m）设定为等于或 大于25μm; 形成在内侧接头部件（15）的外侧球面（13）与保持架（17）的内侧球面（19）之间的球面间隙（2×n1）设定为40μm以上 ; 并且形成在保持架（17）的外球面（18）与外接头部件（12）的内球面（10）之间的球面间隙（2×n2）被设定为等于或大于40 μm。

公开(公告)号：US08162766B2

公开(公告)日：2012-04-24

申请号：US12525705

申请日：2008-01-30

申请人： Hisaaki Kura ,  Shin Tomogami ,  Tomoshige Kobayashi ,  Teruaki Fujio ,  Takeshi Kohara ,  Tomoaki Kaneko

发明人： Hisaaki Kura ,  Shin Tomogami ,  Tomoshige Kobayashi ,  Teruaki Fujio ,  Takeshi Kohara ,  Tomoaki Kaneko

IPC分类号： F16D3/224

CPC分类号： F16D3/2237 ,  F16D3/2245 ,  F16D2003/22309 ,  F16D2250/00 ,  F16D2300/10 ,  Y10S464/906

摘要： A fixed type constant velocity universal joint includes an outer joint member having an inner spherical surface in which a plurality of track grooves extending in an axial direction are formed; an inner joint member having an outer spherical surface in which a plurality of track grooves extending in the axial direction while paired with the track grooves of the outer joint member are formed. A plurality of balls are interposed between the track grooves of each of the outer joint member and the inner joint member, for transmitting a torque, and a cage is interposed between the inner spherical surface of the outer joint member and the outer spherical surface of the inner joint member, for holding the balls. The outer joint member and the inner joint member each have a center curvature of the track grooves being offset from each other in a direction opposite to the axial direction by an equal distance with respect to a joint center, in which: a PCD gap (2×m) in a ball track formed between the track grooves of each of the outer joint member and the inner joint member is set to equal to or larger than 25 μm.

摘要翻译： 固定式等速万向接头包括具有内球面的外接头构件，其中形成有沿轴向方向延伸的多个轨道槽; 形成具有外球面的内侧接头部件，在外侧球面上形成有沿轴向延伸而与外侧接头部件的轨道槽成对的多个轨道槽。 在外接头构件和内接头构件的轨道槽之间插入多个滚珠，用于传递扭矩，并且保持架插入在外接头构件的内球面与外接头构件的外球面之间 内接头构件，用于保持球。 外接头构件和内接头构件各自具有轨道槽的中心曲率在与轴向相反的方向上彼此相对于关节中心相等的距离彼此偏移，其中：PCD间隙（2 ×m）设定为25μm以上的外侧接头构件和内侧接头构件的轨道槽之间形成的球轨。

公开(公告)号：US20100173714A1

公开(公告)日：2010-07-08

申请号：US12602197

申请日：2008-05-29

申请人： Tomoshige Kobayashi

发明人： Tomoshige Kobayashi

IPC分类号： F16D3/24 ,  B21D22/00

CPC分类号： F16D3/2237 ,  F16D3/224 ,  F16D2250/00 ,  F16D2300/10 ,  Y10S72/714 ,  Y10S464/906

摘要： A fixed constant velocity universal joint includes: an outer race (10) having a spherical inner circumferential surface (14), the outer race (10) including axially extending ball grooves (16) formed in the spherical inner circumferential surface (14) at regular circumferential intervals; an inner race (20) having a spherical outer circumferential surface (24), the inner race (20) including axially extending ball grooves (26) formed in the spherical outer circumferential surface (24) at regular circumferential intervals; balls (30) interposed between pairs of the ball grooves (16) of the outer race and the ball grooves (26) of the inner race; and a cage (40) having pockets (46) for receiving the balls (30), the pockets (46) being formed at predetermined circumferential intervals. The outer race (10) is produced by hot forging or lathe-turning and subjected to thermal refining treatment.

摘要翻译： 一种固定的等速万向接头包括：具有球形内圆周表面（14）的外座圈（10），所述外座圈（10）包括在所述球形内圆周表面（14）中以规则的方式形成的轴向延伸的球槽 圆周间隔; 具有球面外周面（24）的内圈（20），所述内座圈（20）包括以规则的周向间隔形成在球面外周面（24）内的轴向延伸的球槽（26） 插入在外圈的滚珠槽（16）的对之间的滚珠（30）和内圈的滚珠槽（26） 以及具有用于接收球（30）的凹部（46）的保持架（40），所述凹部（46）以预定的周向间隔形成。 外圈（10）通过热锻或车床车削制造，并进行热精炼处理。

公开(公告)号：US07258616B2

公开(公告)日：2007-08-21

申请号：US10931207

申请日：2004-09-01

申请人： Masazumi Kobayashi ,  Tohru Nakagawa ,  Tomoshige Kobayashi ,  Masamichi Nakamura

发明人： Masazumi Kobayashi ,  Tohru Nakagawa ,  Tomoshige Kobayashi ,  Masamichi Nakamura

IPC分类号： F16D3/224

CPC分类号： F16D3/2237 ,  F16D3/223 ,  F16D3/2245 ,  F16D2003/22303 ,  F16D2003/22309 ,  Y10S464/906

摘要： A fixed type constant velocity universal joint having an outer joint member having eight arcuate guide grooves extending in the axial direction in an inner spherical surface, an inner joint member having eight arcuate guide grooves extending in the axial direction in an outer spherical surface. Eight balls are disposed between the guide grooves of the outer joint member and guide grooves of the inner joint member. A cage is interposed between the outer and inner joint members for retaining the balls. A center of the guide grooves of the outer joint member is offset from the center of the inner spherical surface, and the center of the guide grooves of the inner joint member is offset from the center of the outer spherical surface by an equal distance to opposite sides in the axial direction. A relation of 0.45≦B/A≦0.65 is established, where A represents the wall thickness of the cage, and B represents the radial displacement of balls at a maximum joint angle.

摘要翻译： 一种固定式等速万向接头，其具有外接头构件，该外接头构件具有在内球面中沿轴向延伸的八个弓形引导槽，内接头构件具有在外球面中在轴向方向上延伸的八个弓形引导槽。 在外接头构件的引导槽和内侧接头构件的引导槽之间设置有八个球。 保持架被插入在外接头构件和内接头构件之间以保持球。 外侧接头构件的引导槽的中心偏离内侧球面的中心，内侧接头构件的引导槽的中心偏离外侧球面的中心距离相反的距离 侧面在轴向。 建立了0.45 <= B / A <= 0.65的关系，其中A表示保持架的壁厚，B表示球在最大关节角度的径向位移。

公开(公告)号：US5260965A

公开(公告)日：1993-11-09

申请号：US785953

申请日：1991-10-31

申请人： Tsugito Nakazeki ,  Tomoshige Kobayashi

发明人： Tsugito Nakazeki ,  Tomoshige Kobayashi

IPC分类号： B23K26/02 ,  B23K26/03 ,  B23K26/06 ,  G02B21/18 ,  G02B27/40 ,  H01S3/08

CPC分类号： B23K26/0648 ,  B23K26/032 ,  B23K26/0643 ,  B23K26/066

摘要： In a laser processing apparatus according to the present invention, an aberration compensating device is provided between a beam forming section and a half mirror. The compensating device makes a focal point of visible light used as reference light during observation and a focal point of infrared laser light used during processing coincide with each other. In one embodiment of the aberration correcting device includes an aberration correcting convex lens having long focal length and a space portion provided in a rotatable lens holder. When observing an object to be processed, the lens holder is rotated to bring the space portion into an optical path. During processing, the lens holder is rotated to bring the convex lens for correction into the optical path, e.g. when emitting the laser beam. The laser beam is converged until incidence on the objective lens by the convex correcting lens to correct the aberration. As the aberration compensating device, a combination of a concave lens and a convex lens having different refractive indexes and the same focal length may also be employed. Otherwise, a concave lens may be provided to make a beam waist of the laser beam coincide with the portion to be processed.

公开(公告)号：US08684850B2

公开(公告)日：2014-04-01

申请号：US13637093

申请日：2011-03-23

申请人： Yoshinori Terasaka ,  Tomoshige Kobayashi ,  Kisao Yamazaki ,  Minoru Ishijima

发明人： Yoshinori Terasaka ,  Tomoshige Kobayashi ,  Kisao Yamazaki ,  Minoru Ishijima

IPC分类号： F16D3/24

CPC分类号： F16D3/2245 ,  F16D3/2237 ,  F16D3/227 ,  F16D2003/22309

摘要： A constant velocity universal joint has track shapes which facilitate quality control on a forging die set, securing higher durability through securement of a stable contact state of forging-molded tracks and finishing-processed tracks with respect to balls. At least one of each of track grooves of an outer joint member and each of track grooves of an inner joint member is formed by cold-forging finishing. A track groove bottom side of the at least one of each of the track grooves is formed into a Gothic arch shape in horizontal cross-section, and a track groove opening side of the at least one of each of the track grooves is are each formed into an elliptical shape in horizontal cross-section.

摘要翻译： 等速万向接头具有轨迹形状，其有助于锻造模具的质量控制，通过确保相对于球体的锻造模制轨道和精加工轨迹的稳定接触状态来确保更高的耐久性。 通过冷锻精加工形成外接头构件的轨道槽和内接头构件的轨道槽中的至少一个。 每个轨道槽中的至少一个的轨道槽底侧形成为水平横截面的哥特式拱形，并且每个轨道槽中的至少一个轨道槽的开口侧各自形成 在水平横截面中成椭圆形。