公开(公告)号：US07069764B2

公开(公告)日：2006-07-04

申请号：US10798175

申请日：2004-03-11

Applicant: Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

Inventor： Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

IPC: B21J13/02

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

Abstract: 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.

公开(公告)号：US06898853B2

公开(公告)日：2005-05-31

申请号：US10315297

申请日：2002-12-09

Applicant: Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

Inventor： Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

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

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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06601555B2

公开(公告)日：2003-08-05

申请号：US10101868

申请日：2002-03-21

Applicant: Kiyoshi Okubo ,  Shoichi Abe ,  Satoshi Kadokawa ,  Hiroshi Iwasa

Inventor： Kiyoshi Okubo ,  Shoichi Abe ,  Satoshi Kadokawa ,  Hiroshi Iwasa

IPC: F01L118

CPC classification number: B21K1/205 ,  F01L1/185 ,  Y10T29/49295 ,  Y10T29/49995 ,  Y10T74/20882

Abstract: A sheet metal rocker arm manufactured by the steps of punching one metal plate to form a blank having a predetermined contour and through holes, and subjecting this blank to a bending work based on a press work to form a pair of side walls parallel to each other and a connecting portion for connecting the both ends of the side walls in the width direction thereof. This rocker arm is also provided with at least a pair of though holes formed at positions which are aligned with each other on the both side walls and at least one engagement portion provided in a part of the connecting portion. The thickness of at least one engagement portion, is formed to be greater than the thickness of the both side walls.

公开(公告)号：US06588293B2

公开(公告)日：2003-07-08

申请号：US09832449

申请日：2001-04-10

Applicant: Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

Inventor： Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

IPC: F16H1904

CPC classification number: F16H55/26 ,  B21K1/767 ,  B21K1/768 ,  B62D3/126 ,  Y10T74/1967 ,  Y10T74/19949

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06334416B2

公开(公告)日：2002-01-01

申请号：US09729111

申请日：2000-12-05

Applicant: Kiyoshi Okubo ,  Shoichi Abe ,  Satoshi Kadokawa ,  Hiroshi Iwasa

Inventor： Kiyoshi Okubo ,  Shoichi Abe ,  Satoshi Kadokawa ,  Hiroshi Iwasa

IPC: F01L118

CPC classification number: B21K1/205 ,  F01L1/185 ,  Y10T29/49295 ,  Y10T29/49995 ,  Y10T74/20882

Abstract: A sheet metal rocker arm manufactured by the steps of punching one metal plate to form a blank having a predetermined contour and through holes, and subjecting this blank to a bending work based on a press work to form a pair of side walls parallel to each other and a connecting portion for connecting the both ends of the side walls in the width direction thereof. This rocker arm is also provided with at least a pair of though holes formed at positions which are aligned with each other on the both side walls and at least one engagement portion provided in a part of the connecting portion. The thickness of at least one engagement portion, is formed to be greater than the thickness of the both side walls.

Abstract translation: 一种钣金摇臂，通过冲压一个金属板以形成具有预定轮廓和通孔的坯料的步骤制造，并且对该坯料进行基于冲压加工的弯曲加工以形成彼此平行的一对侧壁 以及用于连接侧壁的宽度方向的两端的连接部。 该摇臂还具有形成在两侧壁上彼此对准的位置的至少一对通孔和设置在连接部的一部分中的至少一个接合部。 至少一个接合部分的厚度被形成为大于两个侧壁的厚度。

公开(公告)号：US06199527B1

公开(公告)日：2001-03-13

申请号：US09265957

申请日：1999-03-11

Applicant: Kiyoshi Okubo ,  Shoichi Abe ,  Satoshi Kadokawa ,  Hiroshi Iwasa

Inventor： Kiyoshi Okubo ,  Shoichi Abe ,  Satoshi Kadokawa ,  Hiroshi Iwasa

IPC: F01L118

CPC classification number: B21K1/205 ,  F01L1/185 ,  Y10T29/49295 ,  Y10T29/49995 ,  Y10T74/20882

Abstract: A sheet metal rocker arm manufactured by the steps of punching one metal plate to form a blank having a predetermined contour and through holes, and subjecting this blank to a bending work based on a press work to form a pair of side walls parallel to each other and a connecting portion for connecting the both ends of the side walls in the width direction thereof. This rocker arm is also provided with at least a pair of through holes formed at positions which are aligned with each other on the both side walls and at least one engagement portion provided in a part of the connecting portion. The thickness of at least one engagement portion, is formed to be greater than the thickness of the both side walls.

Abstract translation: 一种钣金摇臂，通过冲压一个金属板以形成具有预定轮廓和通孔的坯料的步骤制造，并且对该坯料进行基于冲压加工的弯曲加工以形成彼此平行的一对侧壁 以及用于连接侧壁的宽度方向的两端的连接部。 该摇臂还设置有形成在两侧壁上彼此对准的位置处的至少一对通孔和设置在连接部分的一部分中的至少一个接合部分。 至少一个接合部分的厚度被形成为大于两个侧壁的厚度。

公开(公告)号：US6022047A

公开(公告)日：2000-02-08

申请号：US519614

申请日：1995-08-25

Applicant: Kiyoshi Okubo

Inventor： Kiyoshi Okubo

IPC: B62D1/19 ,  B62D1/20 ,  F16D1/08 ,  F16D3/26 ,  F16D3/38 ,  B62D1/11

CPC classification number: F16D3/387 ,  B62D1/192 ,  F16D1/0864 ,  Y10T403/31 ,  Y10T403/32041 ,  Y10T403/45 ,  Y10T464/50

Abstract: A yoke of a universal joint for a steering apparatus, the yoke including a coupling member made by press-shaping a metallic plate and formed into the shape of a tube having a split in a circumferential portion thereof and a serration on an inner peripheral surface thereof. The coupling member has one end portion, having a partially cylindrical portion and a pair of flange portions integral with the partially cylindrical portion with the split interposed therebetween, and a substantially cylindrical coupling portion at another end portion thereof. Notably, the substantially cylindrical coupling portion has a larger outer diameter than an outer diameter of the partially cylindrical portion. The coupling member further includes a threaded hole formed in one of the flange portions, and a through hole formed in the other of the flange portions and coaxial with the threaded hole for passing a bolt to be threadably engaged with the threaded hole. A coupling arm made by press-shaping a metallic plate into a U-shape and having coaxial circular holes in opposite end portions thereof and having a coupling portion on a base portion thereof is provided. A bellows has one end portion fitted onto and welded to the coupling portion of the coupling member and another end portion fitted onto and welded to the coupling portion of the coupling arm. The yoke can be made very durable and can provide good shock absorbing capability.

Abstract translation: 一种用于转向装置的万向接头的轭，该轭包括通过压制成形金属板并形成其圆周部分的管的形状和在其内周表面上的锯齿制成的联接构件 。 联接构件具有一个端部，其具有部分圆柱形部分和一部分与部分圆柱形部分成一体的凸缘部分，其间分开，并且在其另一端部处具有基本上圆柱形的联接部分。 值得注意的是，基本上圆柱形的联接部分具有比部分圆柱形部分的外径更大的外径。 联接构件还包括形成在一个凸缘部分中的螺纹孔和形成在另一个凸缘部分中并与螺纹孔同轴的通孔，用于使螺栓与螺纹孔螺纹接合。 提供了一种通过将金属板压制成U形并且在其相对端部具有同轴圆孔并且在其基部上具有联接部分而制成的联接臂。 波纹管具有一个端部，其一端部装配到焊接到联接构件的联接部分上并且焊接到联接构件的联接部分上，另一个端部装配到并焊接到联接臂的联接部分上。 轭可以制成非常耐用，并且可以提供良好的减震能力。

公开(公告)号：US5845394A

公开(公告)日：1998-12-08

申请号：US662527

申请日：1996-06-13

Applicant: Shouichi Abe ,  Kiyoshi Okubo

Inventor： Shouichi Abe ,  Kiyoshi Okubo

IPC: F16D3/26 ,  B21D53/84 ,  B21K1/76 ,  B21K21/02 ,  F16D3/38 ,  B23P13/04

CPC classification number: B21K21/02 ,  B21D53/84 ,  B21K1/762 ,  B21K1/765 ,  F16D3/387 ,  Y10S29/011 ,  Y10T29/49622 ,  Y10T29/49995 ,  Y10T403/32049

Abstract: In manufacturing a yoke for an elastic universal joint, the time required for each step is shortened and the automation of each step is made easy, and by the energy saving and high efficiency of the manufacturing work, a reduction in the cost is achieved. A metallic plate is subjected to working which can be done easily and within a short time by press work such as stamping work, deep drawing work and ironing work, to thereby make a yoke for an elastic universal joint. This can be accomplished because welding work and cutting work which require much working time and which are cumbersome to automate can be eliminated. Investment in facilities may be small.

Abstract translation: 在制造用于弹性万向接头的轭时，可以缩短每个步骤所需的时间，并且使每个步骤的自动化变得容易，并且通过节省制造工作的高效率，可以实现成本的降低。 通过冲压加工，深冲加工和熨烫加工等冲压加工，可以容易地在短时间内进行金属板的加工，从而制成用于弹性万向接头的轭。 这可以实现，因为可以消除需要大量工作时间并且自动化麻烦的焊接工作和切割工作。 设施投资可能很小。

公开(公告)号：US07104893B2

公开(公告)日：2006-09-12

申请号：US11079170

申请日：2005-03-15

Applicant: Hideo Ouchi ,  Takeo Ohkuma ,  Kiyoshi Okubo

Inventor： Hideo Ouchi ,  Takeo Ohkuma ,  Kiyoshi Okubo

IPC: F16D3/223

CPC classification number: B21K25/00 ,  B21J5/12 ,  B21K1/06 ,  B60B27/00 ,  F16D1/116 ,  F16D3/2055 ,  F16D3/223 ,  F16D2003/22326 ,  F16D2250/00 ,  F16D2300/12 ,  Y10S464/906

Abstract: A wheel-driving unit and a method for manufacturing the same. The circumferential-direction widths of teeth respectively constituting a male spline portion (47a) and a female spline portion (48a) are varied gradually in the respective axial directions of the male and female spline portions (47a), (48a). The directions where the widths of the teeth respectively constituting the male and female spline portions (47a), (48a) increase in the axial direction are set so as to differ from each other, whereby the spline teeth are engaged with each other in a wedge-like manner. A retaining ring (33b) is bridgingly interposed between the outer peripheral surface of the outer end portion of the spline shaft (17) and the inner peripheral surface of the near-to-outer-end portion of the spline hole (14) to thereby prevent the spline shaft (17) from slipping out of the spline hole (14).

Abstract translation: 轮驱动单元及其制造方法。 分别构成阳花键部分（47a）和阴花键部分（48a）的齿的圆周方向宽度在阳和花键部分（47a），（48a）的各个轴向方向上逐渐变化， 。 分别构成公花键部和内花键部（47a），（48a）的齿的宽度在轴向上增加的方向被设定为彼此不同，由此花键齿彼此接合 一种楔形的方式。 在花键轴（17）的外端部的外周面与花键孔（14）的近端外端部的内周面之间，将保持环（33b）桥接地插入到花键轴 从而防止花键轴（17）从花键孔（14）中滑出。

公开(公告)号：US06779271B2

公开(公告)日：2004-08-24

申请号：US10315281

申请日：2002-12-09

Applicant: Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

Inventor： Akira Tsubouchi ,  Kiyoshi Okubo ,  Yasushi Watanabe

IPC: B21D5328

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

Abstract: 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.

Abstract translation: 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。