公开(公告)号：US20050185876A1

公开(公告)日：2005-08-25

申请号：US11115208

申请日：2005-04-27

申请人： Takeyuki Yoshiba ,  Makoto Fujinami

发明人： Takeyuki Yoshiba ,  Makoto Fujinami

IPC分类号： F16C19/30 ,  F16C19/46 ,  F16C33/64 ,  F16C33/32 ,  F16C33/62

CPC分类号： F16C19/30 ,  F16C19/46 ,  F16C33/547 ,  F16C33/64

摘要： It is an object of the invention to provide a needle bearing which can prevent occurrence of flake and seizure in the bearing parts even under such severe lubricating condition as provided by a compressor for a car air conditioner or a planetary unit for an automatic transmission. The needle bearing is structured by barrel grinding the raceway surface of a ring and the surface of a rolling body without using a ceramic-related abrasive such as alumina or silicon carbide.

公开(公告)号：US06520888B1

公开(公告)日：2003-02-18

申请号：US09419116

申请日：1999-10-15

申请人： Hiroyuki Itoh ,  Kiyoshi Okubo ,  Nobuo Goto ,  Makoto Fujinami ,  Hiroshi Kato

发明人： Hiroyuki Itoh ,  Kiyoshi Okubo ,  Nobuo Goto ,  Makoto Fujinami ,  Hiroshi Kato

IPC分类号： F16H1538

CPC分类号： F16H15/38

摘要： A loading cam apparatus for a toroidal type continuously variable transmission includes: a first cam surface formed to have concave and convex portions thereon along a circumferential direction thereo, a second cam surface formed to have concave and convex portions thereon along a circumferential direction thereof and to oppose to the first cam surface along an axial direction thereof, a plurality of rolling elements sandwiched between the first cam surface and the second cam surface, and a retainer for holding the plurality of rolling elements in a freely rotatable state. The retainer includes a retainer main body of a circular annular shape, and pockets provided at outer periphery portions of the retainer main body for holding the plurality of rolling elements, respectively. The retainer main body is formed by carbonitriding material of iron system with a carbon concentration in a range from 0.02 to 0.20 wt % both inclusive.

摘要翻译： 一种用于环形无级变速器的装载凸轮装置，包括：第一凸轮表面，沿其圆周方向形成为具有凹凸部，第二凸轮面沿其圆周方向形成为具有凹凸部， 与第一凸轮面沿其轴向对置，夹在第一凸轮表面和第二凸轮表面之间的多个滚动元件以及用于将多个滚动元件保持在可自由旋转状态的保持器。 保持器包括圆形环形保持器主体和设置在保持器本体的外周部分上的用于保持多个滚动元件的凹穴。 保持器主体由碳浓度为0.02〜0.20重量％的铁系的碳氮共渗材料形成。

公开(公告)号：US06206801B1

公开(公告)日：2001-03-27

申请号：US09127736

申请日：1998-08-03

申请人： Koji Ishikawa ,  Hiroyuki Ito ,  Hisashi Machida ,  Nobuo Goto ,  Makoto Fujinami ,  Hiroshi Kato

发明人： Koji Ishikawa ,  Hiroyuki Ito ,  Hisashi Machida ,  Nobuo Goto ,  Makoto Fujinami ,  Hiroshi Kato

IPC分类号： F16H1538

CPC分类号： F16H15/38

摘要： A continuously variable transmission provided with a rotary shaft characterized in that a ball spline is formed between an inner peripheral surface of a first disc and an outer peripheral surface of an intermediate portion of a rotary shaft, a restraining members for limiting displacement of balls of a ball spline is provided on an inner side of the inner peripheral surface of the first disc, a small-diametered portion is formed on the outer peripheral surface of the intermediate portion of the rotary shaft and between the first disc and a second disc, and the restraining members is mountable through the small-diametered portion with the restraining members and the small-diametered portion axially aligned with each other.

摘要翻译： 一种设置有旋转轴的无级变速器，其特征在于，在第一盘的内周面和旋转轴的中间部的外周面之间形成有滚珠花键，限制构件用于限制球的位移 滚珠花键设置在第一盘的内周面的内侧，在旋转轴的中间部的外周面，第一盘和第二盘之间形成小直径部， 限制构件通过限制构件和小直径部分彼此轴向对准地通过小直径部分安装。

公开(公告)号：US6071210A

公开(公告)日：2000-06-06

申请号：US189933

申请日：1998-11-12

申请人： Hiroshi Kato ,  Hisashi Machida ,  Takashi Imanishi ,  Nobuo Goto ,  Makoto Fujinami

发明人： Hiroshi Kato ,  Hisashi Machida ,  Takashi Imanishi ,  Nobuo Goto ,  Makoto Fujinami

IPC分类号： F16H15/38 ,  F16H15/26 ,  F16C29/04

CPC分类号： F16H15/38

摘要： The ball spline for use in a troidal-type continuously variable transmission comprises a plurality of spline grooves and a plurality of balls which are arranged in series within spline gaps each constituted by a set of mutually opposing spline grooves, in which, while allowing the movement of the input disc in the direction of an input shaft by means of contact between the spline gaps and balls, the input shaft and input disc can be drivingly connected to each other. In the ball spline, the number of spline gaps is set different from integral multiples of the number of power rollers which are held by and between the input and output discs in contact with the two discs in order to transmit a rotation torque between the input and output discs. Further, each of the spline grooves includes inner and outer peripheral surface side spline grooves, and the shape of each of the sections of the two inner and outer peripheral surface side spline grooves respectively forming the ball spline is formed as a Gothic arch shape. And, the radius of curvature of the section of the groove bottom portion arc surface forming the groove bottom portion of each of the spline grooves is set more than or equal to 15% of the diameter of the ball. Also, the outer peripheral surface side chamfers of the outer peripheral surface side spline groove are set smaller to thereby be able to secure the effective grinding surface of the outer peripheral surface side spline groove.

摘要翻译： 用于齿轮式无级变速器的滚珠花键包括多个花键槽和多个在花键间隙内串联布置的滚珠，每个滚珠间隙由一组相互相对的花键槽构成，其中，同时允许运动 通过花键间隙和球之间的接触在输入轴的方向上输入盘，输入轴和输入盘可以彼此驱动连接。 在球形花键中，花键间隙的数量被设定为不同于与两个盘接触的输入和输出盘之间保持的动力辊的数量的整数倍，以便在输入和输出盘之间传递旋转扭矩 输出光盘。 此外，每个花键槽均包括内外侧面花键槽，分别形成滚珠花键的两个内外侧面花键槽的各部分的形状形成为哥特式拱形。 并且，形成每个花键槽的槽底部的槽底部圆弧面的截面的曲率半径被设定为球的直径的15％以上。 此外，外周面侧花键槽的外周面侧倒角被设定得较小，从而能够确保外周面侧花键槽的有效研磨面。