公开(公告)号：US06328829B1

公开(公告)日：2001-12-11

申请号：US09411204

申请日：1999-10-04

申请人： Junichi Kato ,  Yoshiki Seto ,  Tetsukazu Fukuhara ,  Yugo Yao

发明人： Junichi Kato ,  Yoshiki Seto ,  Tetsukazu Fukuhara ,  Yugo Yao

IPC分类号： C21D1673

CPC分类号： C21D1/673 ,  C21D9/0068

摘要： Hardening is accomplished by heating a longitudinal section of a workpiece such as an odd-shaped bar, and by quenching while constraining the workpiece section in dies. The quenching is executed while the workpiece is pressed in a direction perpendicular to its longitudinal direction by a pressing device which is installed adjacent to the workpiece section constrained in the dies. Warping by quenching can thus be minimized in odd-shaped workpieces, such as an automobile steering rack bar.

摘要翻译： 通过加热诸如异型棒的工件的纵向部分，并且通过在模具中约束工件部分的同时进行淬火来实现硬化。 通过与被限制在模具中的工件相邻设置的加压装置沿垂直于其纵向的方向按压工件来执行淬火。 因此，在诸如汽车转向架杆的异型工件中可以使淬火变形最小化。

公开(公告)号：US5626693A

公开(公告)日：1997-05-06

申请号：US504755

申请日：1995-07-19

申请人： Yugo Yao ,  Tetsukazu Fukuhara ,  Yoshiki Seto ,  Junichi Kato

发明人： Yugo Yao ,  Tetsukazu Fukuhara ,  Yoshiki Seto ,  Junichi Kato

IPC分类号： C21D1/673 ,  C21D9/08 ,  C21D11/00 ,  C21D1/667

CPC分类号： C21D1/673 ,  C21D9/08 ,  C21D11/00

摘要： This invention provides a method and apparatus for quenching a tubular workpiece such as cylindrical tubes or different-shaped tubes, which are difficult to be exerted constraining force for preventing warping especially in case of thinner thickness. Warping is prevented by applying a constraining force which is increased from beginning of the quenching to termination thereof, corresponding to increase of elasticity limit stress in accordance with temperature drop of the workpiece. Furthermore, apparatus for carrying out the method for quenching a tubular workpiece are offered, wherein the apparatus are provided with a pressure controller for pressure rolls or dies, thereby the pressure controller changes setting input for the pressure during the quenching.

摘要翻译： 本发明提供了一种用于淬火管状工件的方法和装置，例如圆柱形管或不同形状的管，其难以施加约束力以防止翘曲，特别是在厚度较薄的情况下。 通过施加从淬火开始到终止的约束力，根据工件的温度下降对应于弹性极限应力的增加来防止翘曲。 此外，提供了用于实施用于淬火管状工件的方法的装置，其中该装置设置有用于压力辊或模具的压力控制器，由此压力控制器改变淬火期间的压力的设定输入。

公开(公告)号：US4776195A

公开(公告)日：1988-10-11

申请号：US877966

申请日：1986-06-24

申请人： Tetsukazu Fukuhara ,  Masayoshi Kurashige ,  Yugo Yao ,  Tokio Sekigawa

发明人： Tetsukazu Fukuhara ,  Masayoshi Kurashige ,  Yugo Yao ,  Tokio Sekigawa

IPC分类号： B21B1/16 ,  B21B13/10 ,  B21B15/00 ,  B21B15/02 ,  B29C53/14 ,  B29C67/00 ,  B29D11/00 ,  G02B6/44

CPC分类号： B21B13/103 ,  B29C53/14 ,  B29C67/00 ,  B29D11/00663 ,  G02B6/4489 ,  B21B1/163 ,  B21B15/02 ,  B21B2015/0057 ,  B21B2015/0071 ,  Y10T29/5187

摘要： An apparatus for manufacturing a core wire for use in laying optical fibers over a long distance produces a plurality of continuous corrugated deep grooves in a wire that are capable of holding therein the optical fibers longitudinally along the peripheral surface of the wire. An endless raw wire material of circular cross section is formed by the apparatus into a wire of square cross section through plastic processing and thereafter the wire is formed into a core wire of a flower patterned cross section with a plurality of petals having corrugated deep grooves in the periphery thereof continuously longitudinally thereof through a rolling device. In addition, the core wire so constructed is formed into a core wire with spiral corrugated deep grooves formed in the peripheral surface thereof. The rolling means has forming rolls equal in number to the number of ridges of the square wire, and each such roll having two perfect corrugated convex portions formed widthwise on the peripheral surface thereof. All the peripheral surfaces of the forming rolls are directed to a point on the wire travelling path, whereby each ridge of the wire is positioned between the two convex portions of each roll. The torsion processing device advantageously has a freely rotatable rim arranged for taking the core wire travelling path as a tangential line, and the rim is rotatable on the contact point between the core wire travelling path and the rim itself perpendicularly to the surface thereof to permit the core wire to be turned around the peripheral surface thereof.

摘要翻译： 用于制造长距离铺设光纤的芯线的设备在导线中产生能够沿着导线的周边纵向保持光纤的多个连续波纹深槽。 通过塑料加工将圆形横截面的无端原料材料形成为方形横截面的线材，然后将线材形成为具有花纹图案横截面的芯线，其中多个花瓣具有波纹深槽 其周边通过滚动装置连续地纵向延伸。 另外，如此构造的芯线形成为在其周面形成有螺旋状的波纹状深槽的芯线。 轧制装置具有与方丝的脊数相等的成形辊，并且每个这样的辊具有在其周向表面上横向形成的两个完美的波纹状凸起部。 成形辊的所有圆周表面被引导到钢丝行进路径上的一个点上，由此每根钢丝的每个凸脊位于每个辊的两个凸部之间。 扭转处理装置有利地具有可自由旋转的轮辋，其被布置为将芯线行进路径作为切线，并且轮辋可以在芯线行进路径和轮辋本身垂直于其表面的接触点上旋转，以允许 芯线绕其外周表面转动。

公开(公告)号：US4538042A

公开(公告)日：1985-08-27

申请号：US381761

申请日：1982-05-25

申请人： Masaho Tanaka ,  Tomio Shishido ,  Tetsukazu Fukuhara ,  Yugo Yao ,  Kunihilo Kobayashi ,  Yoshio Inoue

发明人： Masaho Tanaka ,  Tomio Shishido ,  Tetsukazu Fukuhara ,  Yugo Yao ,  Kunihilo Kobayashi ,  Yoshio Inoue

IPC分类号： B23K11/00 ,  E02D5/58 ,  B23K11/32

CPC分类号： B21F27/124 ,  B23K11/008 ,  E02D5/58

摘要： Apparatus and method for forming a reinforcing cage for a prestressed concrete pile, in which the cage includes a set of main steel bars arranged in a circular pattern and an auxiliary wire which is helically wound around and welded at its crossings with the steel bars, that prevents any crossings from being welded when the current for welding is either insufficient in magnitude or not present and that prevents any unwelded crossings from being subsequently tempered.

摘要翻译： 用于形成用于预应力混凝土桩的加强笼的装置和方法，其中保持架包括一组以圆形图案布置的主钢筋和在其与钢筋的交叉处螺旋缠绕并焊接的辅助线， 当焊接电流的大小不足或不存在时，防止任何交叉焊接，并防止任何未焊接的交叉点随后回火。

公开(公告)号：US4243447A

公开(公告)日：1981-01-06

申请号：US974513

申请日：1978-12-28

申请人： Tetsukazu Fukuhara

发明人： Tetsukazu Fukuhara

IPC分类号： B05C5/02 ,  B05C5/04 ,  B05D7/20 ,  B29C63/02 ,  B65H81/00

CPC分类号： B05D7/20 ,  Y10T156/101 ,  Y10T83/4749

摘要： Steel bars are continuously fed along an inclined path in a direction transverse to the bar axes, are separated one from another by a separator and are then supplied by a roller conveyor to an axial interval regulating station. From this station one steel bar after another is supplied in the axial direction with regular intervals between the bars by means of sets of pinch rollers which are provided at specific intervals and which can be separately dislocated out of the path of movement of the bars and by means of a rod and a spacer fitted to the tip of a swing rod pivotally connected to the rod. Steel bars are thus delivered at regular intervals to a coating station and thereat have the entire lengths thereof, except the threaded end portions thereof, coated with a coating layer of asphalt, epoxy resin or grease by a coating device including a fixed outer nozzle and a movable inner nozzle. Thereafter, the coated bars are sent to a taping station, whereat the entire lengths of the bars, including the coating layers, are tightly wrapped by a thermo-shrinking tape by means of a tape unwinder, a tape guide roller, a tape guide pipe and a welder. Then, with movement of the steel bars, the tubular tape portion is heated by a heater, whereupon the tubular tape shrinks, thereby closely fitting around the steel bar surface including the coating layer. Thus, plural steel bars are continuously axially connected and integrated by the tape. The thus axially connected steel bars are then moved to a cutting station by a special caterpillar whose grip distance can be adjusted to the diameter of the steel bar to be transported. At the cutting station a cutter which acts on a signal issued from a photoelectric detector cuts the hollow tubular tape portion between adjacent connected steel bars. The thus separated bars are supplied to a discharge station, whereat they are discharged from the axial path to a specified location.

公开(公告)号：US06494073B2

公开(公告)日：2002-12-17

申请号：US09748157

申请日：2000-12-27

申请人： Kazutomi Oka ,  Tetsukazu Fukuhara

发明人： Kazutomi Oka ,  Tetsukazu Fukuhara

IPC分类号： B21K2116

CPC分类号： B21D17/02 ,  B21D53/84 ,  B21K1/063 ,  B21K1/767 ,  B21K1/768

摘要： In a method of producing hollow rack bars from steel tubes for use in steering equipment for automobiles and so on, a part of the length of the steel tube to be processed and its adjacent parts is held in split dies that encircle a whole circumference of the tube except for the dies having a hole coinciding with the part of the tube to be processed. Then, a punch is inserted into the hole in a closed state of the dies for flattening a part of the tube, and then mandrels are pushed into the tube for ironing from the inside to form a rack pattern, when a rack forming die is inserted into the hole and held in contact with the flattened part of the tube.

摘要翻译： 在用于汽车等的转向设备的钢管中制造空心齿条的方法中，被加工钢管的长度的一部分及其相邻部分被保持在分开的模具中，该模具环绕整个圆周 除了具有与要处理的管的一部分重合的孔的模具之外。 然后，在模具的关闭状态下，在孔的内部插入冲头，使管的一部分变平，然后当插入齿条成形模时，将心轴从内侧推入用于熨烫的管中，形成齿条图案 进入孔并保持与管的扁平部分接触。

公开(公告)号：US4290841A

公开(公告)日：1981-09-22

申请号：US064627

申请日：1979-08-07

申请人： Tetsukazu Fukuhara

发明人： Tetsukazu Fukuhara

IPC分类号： B05C5/02 ,  B05C5/04 ,  B05D7/20 ,  B29C63/02 ,  B32B31/00

CPC分类号： B05D7/20 ,  Y10T156/101 ,  Y10T83/4749

摘要： Steel bars are continuously fed along a path in a direction transverse to the bar axes, are separated by a separator and are then supplied by a roller conveyor to an axial interval regulating station. From this station each steel bar is supplied in the axial direction at regular intervals by means of sets of pinch rollers which are provided at specific intervals and which can be separately dislocated out of the path of movement of the bars and by means of a rod and a spacer fitted to the tip of a swing rod pivotally connected to the rod. Steel bars are thus delivered at regular intervals to a coating station and thereat have the entire lengths thereof, except the threaded end portions thereof, coated with a coating layer. Thereafter, the coated bars are sent to a taping station, whereat the entire lengths of the bars, including the coating layers, are tightly wrapped by a thermo-shrinking tape. Then, with movement of the steel bars, the tubular tape portion is heated by a heater, whereupon the tubular tape shrinks, thereby closely fitting around the steel bar surface including the coating layer. Thus, plural steel bars are continuously axially connected and integrated by the tape. The thus axially connected steel bars are then moved to a cutting station by a special caterpillar whose grip distance can be adjusted to the diameter of the steel bar to be transported.

摘要翻译： 钢筋沿着与杆轴横向的路径连续进给，由分离器分开，然后由辊式输送机供给到轴向间隔调节台。 从该工位，通过一组夹送辊以规定的间隔沿轴向方向供给每个钢筋，该夹紧辊以特定的间隔设置，并且可以分别脱离棒的移动路径并且通过杆和 安装在与所述杆枢转连接的摆动杆的尖端上的间隔件。 因此，钢筋以规则的间隔被输送到涂覆站，并且其具有涂覆有涂层的除了其螺纹端部之外的整个长度。 此后，将涂覆的棒送到胶带站，其中包括涂层的条的整个长度被热收缩带紧密地包裹。 然后，随着钢筋的移动，管状带部分被加热器加热，于是管状带收缩，从而紧密地装配在包括涂层的钢筋表面周围。 因此，多个钢筋通过带子连续轴向连接和集成。 这样轴向连接的钢筋然后通过一个特殊的履带被移动到一个切割站，其抓地距离可以被调节到要运输的钢筋的直径。