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公开(公告)号：US11815056B2
公开(公告)日：2023-11-14
申请号：US16813393
申请日：2020-03-09
发明人： Jisung Lee
CPC分类号： F02M61/18 , B21D41/04 , B05B17/04 , Y10T29/49432 , Y10T29/49433
摘要： A method of manufacturing an orifice is provided to make the orifice capable of spraying a very small amount of fluid in an ultra-high pressure and very low temperature environments. The method also makes it possible to provide the orifice with reduced volume and mass. More specifically, the method effectively realizes a desired hydraulic performance through a simple manufacturing method in which a part of a capillary pipe is pressed to form a channel region having a cross section close to a rectangular shape.
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公开(公告)号：US11685211B2
公开(公告)日：2023-06-27
申请号：US17510669
申请日：2021-10-26
申请人： NHK SPRING CO., LTD.
发明人： Masahiro Umezawa , Daisuke Takeda
CPC分类号： B60G11/16 , B21F35/02 , F16F1/06 , F16F1/12 , F16F1/126 , F16F9/32 , B21D41/04 , B21K21/14 , B60G2202/12 , B60G2204/124 , B60G2206/426 , B60G2206/724 , F16F2224/0208 , F16F2230/0005 , F16F2234/02
摘要： A method of manufacturing a hollow coil spring which is made of a hollow wire in which a terminal sealed portion is formed on an end portion of the wire. The terminal sealed portion has a rotationally symmetric shape in which an axis passing through the center of the wire is the symmetric axis. The hollow coil spring includes an end wall portion, and an end face arc-shaped curved surface. The end wall portion includes an end face perpendicular to the axis. A distal-end-center closure portion is formed on the axis at the center of the end wall portion. A spring seat includes a base member and a sheet member. An end turn portion of the hollow coil spring is in contact with the sheet member. The end face of the end turn portion is opposed to a stopper wall of the spring seat.
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公开(公告)号：US10953454B2
公开(公告)日：2021-03-23
申请号：US16321518
申请日：2017-08-01
IPC分类号： B21D39/04 , B21D53/88 , B62D1/16 , B21D41/04 , F16D1/072 , F16D1/108 , F16D3/06 , F16C3/02 , F16C3/03 , B21D39/20 , B21D9/04
摘要： A method may be utilized to produce a steering spindle part configured as a hollow shaft and having a connecting portion at its end. At least a part of the connecting portion includes increased wall thickness relative to a portion of the steering spindle part adjoining the connecting portion. The method may involve providing a circular, hollow cylindrical tube with an inner surface that is smooth in a circumferential direction, providing a circular, hollow cylindrical sleeve with an outer surface that is smooth in a circumferential direction, inserting the sleeve into an end portion of the tube, and jointly deforming the end portion of the tube and the sleeve such that a flow of material occurs. This flow may form positively locking elements on the tube and the sleeve that engage into one another in the circumferential direction and generate positive locking in the circumferential direction.
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公开(公告)号：US10744551B2
公开(公告)日：2020-08-18
申请号：US15743400
申请日：2016-07-15
申请人： DAICEL CORPORATION
IPC分类号： B21D39/02 , B21D39/06 , B21D41/04 , B60R21/264 , B60R21/26
摘要： A rolling-swaging tool for closing an opening of a cylindrical housing includes: a support shaft connected to a driving body; rotating shafts extending in directions orthogonal to the support shaft; and swaging portions, each of which being attached to each of the rotating shafts. The swaging portions have, an annular first swaging portion having a minimum thickness and a maximum outer diameter, a disk third swaging portion having a maximum thickness and a minimum outer diameter, and an annular second swaging portion having a thickness between the minimum thickness and the maximum thickness and an outer diameter between the maximum outer diameter and the minimum outer diameter. The tool also has a first annular inclined surface provided between the annular first swaging portion and the annular second swaging portion, and a second annular inclined surface provided between the annular second swaging portion and the disk third swaging portion.
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公开(公告)号：US20180193898A1
公开(公告)日：2018-07-12
申请号：US15399849
申请日：2017-01-06
发明人： WU-SHENG HUANG
CPC分类号： B21D41/021 , B21D19/08 , B21D41/04
摘要： A rotary pipe sizing tool for expanding or shrinking a pipe includes a main member having a driving portion, a clamping device provided at an end of the driving portion of the main member; and a rotating mechanism provided between the main member and the clamping device. The clamping device is free to rotate relative to the main member through the rotating mechanism to make the rotary pipe sizing tool operate in a narrow or a space that is hard to reach.
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6.发明申请公开(公告)号：US20180169732A1
公开(公告)日：2018-06-21
申请号：US15847446
申请日：2017-12-19
发明人： Daniel Lücke , Leonhard Rose , Dirk Tegethoff , Marcel Wellpott
摘要： In a method of producing a tubular structure for a gas generator, a tubular body is positioned relative to a forming device having inner and outer tools, which are moved relative to an end portion of the tubular body until an inner circumferential surface of a neck of the end portion rests against a support surface of the inner tool to reduce a diameter of the end portion by a tool contour of the outer tool and thereby form a shoulder. The outer tool is held in position upon the end portion and the neck inner circumferential surface is calibrated by a calibrating surface on a calibrating member of the inner tool while an outer circumferential surface of the neck is supported by the outer tool, as the inner tool is removed from the end portion. The outer tool is then removed from the end portion of the tubular body.
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公开(公告)号：US20180021836A1
公开(公告)日：2018-01-25
申请号：US15540899
申请日：2016-01-07
摘要： There is provided a method of manufacturing a tooth-shaped component including drawing process of draw-forming a workpiece so as to obtain a cylindrical container which has a bottom surface portion and a side surface portion; diameter-reducing process of reducing a diameter of a particular part in which a tooth tip portion is to be formed in the side surface portion of the cylindrical container, so as to increase a thickness of a corner portion such that an external shape of the corner portion between the bottom surface portion and the side surface portion satisfies the following conditional expression (1); and tooth shape-forming process of forming the tooth tip portion in the particular part of the cylindrical container reduced in diameter in the diameter-reducing process, so as to obtain a tooth-shaped component which has the bottom surface portion, the side surface portion, and the tooth tip portion. (ΔR+ΔH)≦2t (1)
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公开(公告)号：US20170157877A1
公开(公告)日：2017-06-08
申请号：US15371344
申请日：2016-12-07
申请人： Familie Burger GbR
发明人： Manuel BURGER
IPC分类号： B30B7/04 , B21D41/02 , B21D41/04 , B60R21/264
CPC分类号： B30B7/04 , B21D17/02 , B21D19/005 , B21D41/02 , B21D41/026 , B21D41/04 , B60R21/264 , B60Y2410/12
摘要： A method and device for production of a combustion chamber tube for restraint systems in vehicles. The combustion chamber tube is embossed by several embossing dies arranged stellate around the combustion chamber tube and movable by an annular compression module with several punches movable in synchronized fashion in the radial direction and two inner punches extending into the ends of the combustion chamber tube, each with a support mandrel and a shaping mandrel movable relative to support mandrel. The combustion chamber tube is embossed from the outside by the embossing dies radially movable via punches against the support mandrels and the ends of the combustion chamber tube are shaped by shaping mandrels movable relative to support mandrels when the embossing dies are closed.
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公开(公告)号：US20170087620A1
公开(公告)日：2017-03-30
申请号：US15276539
申请日：2016-09-26
申请人： ED GOFF , Jeremiah J. Warriner
发明人： ED GOFF , Jeremiah J. Warriner
IPC分类号： B21D41/04
摘要： A radial compression mechanism includes a constraining structure with a cut-out defined by a plurality of bearing surfaces. A plurality of die are carried by the constraining structure and arranged in a circular pattern about a central axis. Each die has a base side positioned in parallel juxtaposition to a corresponding bearing surface and each die is constrained to move reciprocally and linearly along the corresponding bearing surface. Working surfaces of the plurality of die cooperate to form a cavity that is movable between an open position and a closed position. A driving mechanism is coupled to at least one of the plurality of die to drive all of the die in unison between the open position and the closed position.
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公开(公告)号：US09510964B2
公开(公告)日：2016-12-06
申请号：US14819228
申请日：2015-08-05
发明人： Karen J. Wang , Edward P. Garcia , Manish Gada , Marc Schraner , Michael Green , Stan Lam
CPC分类号： A61F2/958 , A61F2/06 , A61F2/95 , A61F2002/9522 , B21D37/18 , B21D39/048 , B21D41/04 , B23P17/04
摘要： A stent crimping tool insert comprises a core body configured for insertion into and removal from within a crimping chamber of a stent crimping tool. The core body has a core surface configured to withstand a compressive force without a reduction in diameter of the core surface.
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