-
公开(公告)号：US06845560B2
公开(公告)日：2005-01-25
申请号：US09803560
申请日：2001-03-09
申请人： Akira Tsubouchi , Kiyoshi Okubo , Yasushi Watanabe
发明人： Akira Tsubouchi , Kiyoshi Okubo , Yasushi Watanabe
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： Methods are provided for forming a hollow rack shaft from a workpiece comprising a rectangular plate. The workpiece is first bent into a gutter-like shape using a first die set. Rack teeth are then press-formed in a portion of the gutter-like shape using a second die set. The legs, or sides, of the workpiece are then bent around a mandrel into a semi-circular shape so as to butt against each other. Preferably, the die sets and mandrel may be adapted to improve the resulting hollow rack shaft.
摘要翻译： 提供了用于从包括矩形板的工件形成中空齿条轴的方法。 首先使用第一模具将工件弯曲成沟槽状。 然后使用第二模具组，在沟槽状形状的一部分中压制成齿。 然后将工件的腿部或侧面围绕心轴弯曲成半圆形以便彼此对接。 优选地，模具组和心轴可以适于改进所得到的中空齿条轴。
-
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。
-
公开(公告)号：US20120186085A1
公开(公告)日：2012-07-26
申请号：US13415120
申请日：2012-03-08
IPC分类号： B23P15/14
CPC分类号： F16H55/26 , B21J5/12 , B21K1/767 , Y10T29/49467 , Y10T29/49472 , Y10T29/49474 , Y10T74/1967
摘要： To sufficiently secure the width dimension, strength and rigidity of the rack teeth 10, and to realize the light weight construction and the manufacturing method of the rack 8, the rack teeth 10 is formed by plastic working on one side surface in the radial direction of part in the axial direction of a rod unit 9 having a circular cross-sectional shape, and the curvature radius of the portion which is separated in the radial direction from the portion where the rack teeth 10 is formed, is made greater than that of the cross sectional shape of the outer surface of the axial remaining portion of the rod unit 9.
摘要翻译： 为了充分确保齿条齿10的宽度尺寸，强度和刚性，为了实现齿条8的轻量化结构和制造方法，齿条齿10通过塑料加工形成在一个侧面上 具有圆形横截面形状的杆单元9的轴向部分，以及沿着径向与形成齿条齿10的部分分开的部分的曲率半径大于 杆单元9的轴向剩余部分的外表面的横截面形状。
-
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。
-
公开(公告)号：US06763739B2
公开(公告)日：2004-07-20
申请号：US09994526
申请日：2001-11-27
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.
-
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
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。
-
公开(公告)号：US20110300334A1
公开(公告)日：2011-12-08
申请号：US13087661
申请日：2011-04-15
申请人： Nobukazu UENO , Yasuhiro BEPPU , Akira TSUBOUCHI
发明人： Nobukazu UENO , Yasuhiro BEPPU , Akira TSUBOUCHI
CPC分类号： D04H1/541 , D04H1/736 , D04H1/74 , Y10T428/24355 , Y10T428/249921
摘要： The present fibrous structural article is a material in a plate-like shape and having multiple fibers adhered to one another, and fibers are oriented from one surface side toward the other surface side of the fibrous structural article, and the fibers are arranged in an annual ring centering on a virtual axis. The present production method of a fibrous structural article comprises a fiber supplying process for blowing and supplying first short fibers and second short fibers, into a forming mold in a hollow box shape and having a first bottom wall, sidewalls and second bottom wall, from a fiber supplying port formed through the first bottom wall, and a melting process for melting at least part of the second short fibers.
摘要翻译： 本发明的纤维结构体是板状形状，多根纤维彼此粘接的纤维，纤维从纤维结构体的一个表面侧向另一个表面侧取向，纤维以一年一次的方式排列 环位于虚拟轴上。 本发明的纤维结构体的制造方法包括将第一短纤维和第二短纤维吹送供给到中空箱状的成型模具中的纤维供给工序，具有第一底壁，侧壁和第二底壁， 通过第一底壁形成的纤维供给口，以及用于熔化至少部分第二短纤维的熔融方法。
-
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
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。
-
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.
-
公开(公告)号：US07069764B2
公开(公告)日：2006-07-04
申请号：US10798175
申请日：2004-03-11
申请人： Akira Tsubouchi , Kiyoshi Okubo , Yasushi Watanabe
发明人： Akira Tsubouchi , Kiyoshi Okubo , Yasushi Watanabe
IPC分类号： B21J13/02
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.
-
-
-
-
-
-
-
-
-
搜索结果
14 条记录 (耗时 0.014 秒)
