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    Disk for toroidal type continuously variable transmission
    1.
    再颁专利
    Disk for toroidal type continuously variable transmission 有权
    圆盘型无级变速传动

    公开(公告)号：USRE39647E1

    公开(公告)日：2007-05-22

    申请号：US10233481

    申请日：2002-09-04

    申请人： Kiyoshi Okubo ,  Akira Tsubouchi ,  Takashi Imanishi ,  Nobuo Gotou

    发明人： Kiyoshi Okubo ,  Akira Tsubouchi ,  Takashi Imanishi ,  Nobuo Gotou

    IPC分类号： F16H15/38 ,  B21D22/06

    CPC分类号： B21K1/28 ,  F16H15/38 ,  Y10T29/49474

    摘要： The disk has a traction surface having a concave-arc-shaped cross section which is interposed between a small diameter end portion and a large diameter end portion. In the central portion of the end face of the disk on the small diameter end portion side, there is formed a through hole which extends through the disk up to the large diameter end portion side end face of the disk, while the inner peripheral surface of the through hole is used as an inside diameter surface of the disk. Here, when, among metal flows existing in the disk, a metal flow, which has such a positional relationship with respect to the surface of the disk that an angle θ formed between a metal flow on the traction surface side and the tangent of the traction surface is smaller than or equal to 30 degrees, is defined as a “metal flow along the disk surface”, the disk is structured such that the “metal flow along the disk surface” exists at least in the traction surface.

    摘要翻译： 盘具有牵引表面，该牵引表面具有凹弧形截面，其插入在小直径端部和大直径端部之间。 在小直径端部侧的盘的端面的中心部分，形成有贯穿圆盘的通孔，直到盘的大直径端部侧端面，而内周面 通孔用作盘的内径表面。 这里，当在盘中存在的金属流中，金属流与金属盘的表面具有这样的位置关系，即在牵引表面侧的金属流与牵引面的切线之间形成的角度θ 表面小于或等于30度，被定义为“沿着盘表面的金属流”，盘被构造成使得“至少在盘表面上的金属流”至少存在于牵引表面中。

    Disk for toroidal type continuously variable transmission
    2.
    发明授权
    Disk for toroidal type continuously variable transmission 有权
    圆盘型无级变速传动

    公开(公告)号：US6113514A

    公开(公告)日：2000-09-05

    申请号：US220763

    申请日：1998-12-28

    申请人： Kiyoshi Okubo ,  Akira Tsubouchi ,  Takashi Imanishi ,  Nobuo Gotou

    发明人： Kiyoshi Okubo ,  Akira Tsubouchi ,  Takashi Imanishi ,  Nobuo Gotou

    IPC分类号： B21K1/28 ,  F16H15/38 ,  B21D22/06

    CPC分类号： B21K1/28 ,  F16H15/38 ,  Y10T29/49474

    摘要： The disk has a traction surface having a concave-arc-shaped cross section which is interposed between a small diameter end portion and a large diameter end portion. In the central portion of the end face of the disk on the small diameter end portion side, there is formed a through hole which extends through the disk up to the large diameter end portion side end face of the disk, while the inner peripheral surface of the through hole is used as an inside diameter surface of the disk. Here, when, among metal flows existing in the disk, a metal flow, which has such a positional relationship with respect to the surface of the disk that an angle .theta. formed between a metal flow on the traction surface side and the tangent of the traction surface is smaller than or equal to 30 degrees, is defined as a "metal flow along the disk surface", the disk is structured such that the "metal flow along the disk surface" exists at least in the traction surface.

    摘要翻译： 盘具有牵引表面，该牵引表面具有凹弧形截面，其插入在小直径端部和大直径端部之间。 在小直径端部侧的盘的端面的中心部分，形成有贯穿圆盘的通孔，直到盘的大直径端部侧端面，而内周面 通孔用作盘的内径表面。 这里，当在盘中存在的金属流中，金属流与金属盘的表面具有这样的位置关系，即在牵引表面侧的金属流与牵引面的切线之间形成的角度θ 表面小于或等于30度，被定义为“沿着盘表面的金属流”，盘被构造成使得“至少在盘表面上的金属流”至少存在于牵引表面中。

    Hollow rack shaft and manufacturing method thereof
    4.
    发明授权
    Hollow rack shaft and manufacturing method thereof 有权
    空心轴及其制造方法

    公开(公告)号：US06782772B2

    公开(公告)日：2004-08-31

    申请号：US10459749

    申请日：2003-06-12

    申请人： Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

    发明人： Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

    IPC分类号： F16H104

    CPC分类号： F16H55/26 ,  B21K1/767 ,  B21K1/768 ,  B62D3/126 ,  Y10T74/1967

    摘要： The object of the invention is to provide a rack shaft having two rack teeth groups and hollowed throughout the whole body, to lightweightize the shaft and to reduce the cost. The two rack teeth groups are located longitudinally apart from each other and have phase difference related to an angle around the axis of the shaft. After the two rack teeth groups are formed simultaneously or sequentially by die forming on the flat bottoms of the workpiece beforehand gutter-shaped, the legs of the gutter-shaped workpiece are bent to butt to each other and, thereby, a tubular body of the shaft is given to the workpiece. The centers of the material are offset beforehand corresponding to the phase difference.

    摘要翻译： 本发明的目的是提供一种齿条轴，其具有两个齿条齿组，并且在整个机体中中空化，以使轴轻量化并降低成本。 两个齿条齿组彼此纵向分开，并且具有与轴的轴线周围的角度相关的相位差。 在通过模具成形同时或顺序地形成两个齿条齿组之后，预先形成沟槽状的工件的平坦底部，将沟槽状工件的腿弯曲成彼此对接，从而将管状体 轴被给予工件。 材料的中心预先相应于相位差偏移。

    Hollow rack shaft and method of manufacturing the same
    5.
    发明授权
    Hollow rack shaft and method of manufacturing the same 有权

    公开(公告)号：US06442992B1

    公开(公告)日：2002-09-03

    申请号：US09775124

    申请日：2001-02-01

    申请人： Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

    发明人： Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

    IPC分类号： B21K154

    摘要： In a method of manufacturing a hollow rack shaft, an approximately rectangular plate having a wide rack tooth portion, is bent lengthwise into a gutter-like cross section to provide: at the central portion, a flat bottom portion on which rack teeth are formed later and a pair of mutually facing leg portions, and, in the vicinity of both ends, a semicircular bottom portion and a pair of mutually facing leg portions. The mutually facing leg portions at the central portion have a larger clearance than the clearance of the mutually facing leg portions in the vicinity of both ends. The rack teeth are then formed on the flat bottom portion through the plastic flow of the flat bottom portion and a part of material of the pair of leg portions of this flat bottom portion. The gutter-shaped plate, on which the rack teeth have been formed, is then formed into a tube having a hollow inner surface, by bending the plate and butt joining the edge portions.

    Method for manufacturing a hollow rack shaft
    6.
    发明授权
    Method for manufacturing a hollow rack shaft 有权
    空心齿条轴的制造方法

    公开(公告)号：US06779271B2

    公开(公告)日：2004-08-24

    申请号：US10315281

    申请日：2002-12-09

    申请人： Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

    发明人： Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

    IPC分类号： B21D5328

    CPC分类号： B21K1/767 ,  B21C37/155 ,  B21K1/063 ,  B62D3/126 ,  Y10S72/702 ,  Y10T29/49467 ,  Y10T29/49474 ,  Y10T29/49476 ,  Y10T74/1967 ,  Y10T74/19949

    摘要： A hollow rack shaft is manufactured through a first step, a second step and a third step. At the first step, the plate-like workpiece of substantial rectangular shape is press formed into a gutter-like shape. The first die set used at this step is provided with slant die surfaces for canceling elastic recovering generated at the workpiece when the workpiece is removed from the first die set. At the second step, a row of rack teeth is press-formed on the flat bottom portion of the workpiece formed in the first step. The die set used at the second step is provided with a recess for releasing surplus workpiece material within the die clearance at a stroke end of the pressworking. At the third step, each of a pair of legs of the workpiece is bent in a semi-circular shape so as to be butted to each other. At this time, a mandrel is inserted between the legs of the workpiece.

    摘要翻译： 通过第一步骤，第二步骤和第三步骤制造空心齿条轴。 在第一步骤中，大致矩形的板状工件被压制成沟槽状。 在该步骤中使用的第一模具设置有倾斜的模具表面，用于抵消当从第一模具组移除工件时在工件处产生的弹性恢复。 在第二步骤中，在第一步骤中形成的工件的平坦底部上压制一排齿条齿。 在第二步骤中使用的模具设置有用于在冲压加工的冲程端处释放模具间隙内的多余工件材料的凹部。 在第三步骤中，工件的一对腿中的每一个被弯曲成半圆形以便彼此对接。 此时，心轴插入工件的腿部之间。

    Method for manufacturing a hollow rack shaft
    8.
    发明授权
    Method for manufacturing a hollow rack shaft 有权
    空心齿条轴的制造方法

    公开(公告)号：US06898853B2

    公开(公告)日：2005-05-31

    申请号：US10315297

    申请日：2002-12-09

    申请人： Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

    发明人： Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

    IPC分类号： B21C37/15 ,  B21K1/76 ,  B62D3/12 ,  B21D53/28 ,  B21C25/02 ,  B21K1/30

    CPC分类号： B21K1/767 ,  B21C37/155 ,  B21K1/063 ,  B62D3/126 ,  Y10S72/702 ,  Y10T29/49467 ,  Y10T29/49474 ,  Y10T29/49476 ,  Y10T74/1967 ,  Y10T74/19949

    摘要： A hollow rack shaft is manufactured through a first step, a second step and a third step. At the first step, the plate-like workpiece of substantial rectangular shape is press-formed into a gutter-like shape. At the second step, a row of rack teeth is press-formed by a preliminary forming step and a main forming step on the flat bottom portion of the workpiece formed in the first step. The die set used at the second step is provided with a recess for releasing surplus workpiece material within the die clearance at a stroke end of the pressworking and each die set is divided into a plurality of segments at the recess. At the third step, each of a pair of legs of the workpiece is bent in a semi-circular shape so as to be butted to each other.

    摘要翻译： 通过第一步骤，第二步骤和第三步骤制造空心齿条轴。 在第一步骤中，大致矩形的板状工件被压制成沟槽状。 在第二步骤中，通过在第一步骤中形成的工件的平坦底部上的预成型步骤和主成形步骤来压入一排齿条齿。 在第二步骤中使用的模具设置有用于在冲压加工的冲程端处释放模具间隙内的剩余工件材料的凹部，并且每个模具组在凹部处被分成多个段。 在第三步骤中，工件的一对腿中的每一个被弯曲成半圆形以便彼此对接。

    Hollow rack shaft
    9.
    发明授权
    Hollow rack shaft 有权
    空心轴轴

    公开(公告)号：US06588293B2

    公开(公告)日：2003-07-08

    申请号：US09832449

    申请日：2001-04-10

    申请人： Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

    发明人： Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

    IPC分类号： F16H1904

    CPC分类号： F16H55/26 ,  B21K1/767 ,  B21K1/768 ,  B62D3/126 ,  Y10T74/1967 ,  Y10T74/19949

    摘要： A hollow rack shaft is produced by forming a plate work piece and has continuous metal flow along the contour of rack teeth surface without being cut. A series of wave-like concave-convex sections is formed on the inner surface of the shaft. Thickness of tooth body and tooth bottom of the rack teeth is adjusted by dimensions of the unevenness. Thereby, stress concentration at each point of the rack shaft is prevented and the shaft is strengthened and its weight reduced.

    摘要翻译： 通过形成板状工件制造中空的齿条轴，并且沿着齿条齿表面的轮廓连续地进行金属流动而不被切割。 在轴的内表面上形成有一系列波状的凹凸部。 牙齿的齿体和齿底的厚度根据不平整度的尺寸进行调节。 由此，防止了齿条轴的各点处的应力集中，并且轴被加强并且其重量减轻。

    Method of manufacturing hollow rack shaft
    10.
    发明授权
    Method of manufacturing hollow rack shaft 有权
    空心轴轴

    公开(公告)号：US06782598B2

    公开(公告)日：2004-08-31

    申请号：US10461056

    申请日：2003-06-13

    申请人： Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

    发明人： Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

    IPC分类号： B21D3500

    CPC分类号： B21D43/285 ,  B21C37/155 ,  B21D35/006 ,  B21D53/88 ,  B21K1/12 ,  B21K1/767 ,  B21K1/768 ,  B62D3/126 ,  Y10T29/49462 ,  Y10T29/49467 ,  Y10T29/49474 ,  Y10T29/49906 ,  Y10T74/1967

    摘要： A workpiece for a hollow rack shaft is a substantially rectangular plate. The opposite two sides of this workpiece are respectively provided with a complementary profile composed of the continuation of a convex portion and a concave portion and when the workpiece is cylindrically formed, the profiles are mutually engaged. As the width of a part the width of which is the largest in the convex portion is larger than that of a part the width of which is the smallest in the concave portion, the two sides are prevented from being detached after engagement. Further, the opposite convex portion and concave portion are mutually caulked and hereby, mutual gap is removed.

    摘要翻译： 中空齿条轴的工件是大致矩形的板。 该工件的相对的两侧分别设置有由凸部和凹部的延续构成的互补轮廓，并且当工件被圆柱形地形成时，轮廓相互接合。 由于凸部的宽度最大的部分的宽度大于凹部的宽度最小的部分的宽度，所以在接合后防止两侧脱离。 此外，相对的凸部和凹部相互铆接，因此相互间隙被去除。