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公开(公告)号：US3561239A
公开(公告)日：1971-02-09
申请号：US3561239D
申请日：1969-08-28
申请人： TOKYU CAR CORP
CPC分类号： B21D26/06
摘要： A METHOD OF FORMING METAL USING AMOLD CAVITY MEMBER COMPRISES PLACING THE METAL IN ASSOCIATION WITH THE CAVITY MEMBER IN A POSITION SUCH THAT IT CAN BE DEFORMED INTO THE CAVITY THEREOF AND DIRECTING A LIQUID FIRST THROUGH A NARROWING PASSAGE TO INCREASE THE VELOCITY AND IMPACT FORCE AND THEREAFTER DIRECTING THE LIQUID AT HIGH IMPACT FORCE AND VELOCITY AGAINST THE METAL TO SHAPE IT INTO THE FORM OF THE MOLD CAVITY. THE APPARATUS FOR CARRYING OUT THE INVENTION INCLUDES A LIQUID PRESSURE CHAMBER AND A PLUNGER WHICH IS SLIDABLE IN THE CHAMBER BUT WHICH IS EXPOSED AT THE EXTERIOR OF THE CHAMBER TO PERMIT IT TO BE MOVED RAPIDLY BY STRIKING IT. THE MOVEMENT OF THE PLUNGER CAUSES THE DISPLACEMENT OF THE LIQUID IN THE CHAMBER THROUGH A NARROWING PASSAGE TO INCREASE ITS VELOCITY AND IMPACT FORCE. THE CHAMBER FOR GENERATING THE HIGH IMPACT FORCE OF THE LIQUID AND INCREASED VELOCITY OF THE LIQUID IS LOCATED ADJACENT A MOLD CAVITY MEMBER SO THAT THE LIQUID MIGHT BE INJECTED INTO THE MOLD CAVITY MEMBER TO DEFORM THE METAL TO BE FORMED. VARIOUS EMBODIMENTS FOR INCREASING THE VELOCITY OF THE LIQUID AND ITS IMPACT FORCE ARE DISCLOSED INCLUDING A SINGLE NARROWING PASSAGE AND A DOUBLE PASSAGE CONSTRUCTION, AS WELL AS A DIVERGENT PASSAGE CONSTRUCTION.
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公开(公告)号：US3599757A
公开(公告)日：1971-08-17
申请号：US3599757D
申请日：1969-06-09
申请人： TOKYU CAR CORP
CPC分类号： F16F7/125
摘要： This invention relates to a device for absorbing energy by means of plastic deformation which, when compressed by an external force or forces, exhibits a certain deformative resistance and, without being fractured, reduces the shock due to the external impact force through continuous and permanent plastic deformation, and more particularly to a machine element buffer as an energy absorber in which a predetermined amount of energy may be absorbed under a certain load with at least possible reduction of length and with no danger of springback after the deformation.
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公开(公告)号：US3511345A
公开(公告)日：1970-05-12
申请号：US3511345D
申请日：1968-02-20
申请人： TOKYU CAR CORP
发明人： TAKAMATSU MASANOBU , ANDO MOTOO
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公开(公告)号：US3494160A
公开(公告)日：1970-02-10
申请号：US3494160D
申请日：1967-06-23
申请人： TOKYU CAR CORP
CPC分类号： B21D26/06 , Y10T29/49805
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公开(公告)号：US3858422A
公开(公告)日：1975-01-07
申请号：US38908073
申请日：1973-08-17
申请人： TOKYU CAR CORP
CPC分类号： B21D26/06 , B29C49/58 , B29C2049/0089 , B29K2105/258
摘要： An improved molding device for jet-forming a workpiece which includes laterally adjustable die segments, a displaceable tapered jet spray guide member, a jet spray nozzle for introducing a jet stream into the mold cavity and means for pressurizing a liquid introduced into the mold cavity through the jet nozzle.
摘要翻译： 一种用于喷射形成工件的改进的模制装置，其包括横向可调节的模具段，可移位的锥形喷射引导构件，用于将射流引入模腔中的喷射喷嘴和用于加压引入模腔中的液体的装置 喷嘴。
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公开(公告)号：US3681959A
公开(公告)日：1972-08-08
申请号：US3681959D
申请日：1970-04-16
申请人： TOKYU CAR CORP
CPC分类号： B21D26/06
摘要： A material forming apparatus using impulsive hydraulic pressure includes a motive power section which comprises a cylinder having a hammer movable in the cylinder. The motive power section is connected to a hydraulic pressure developing section. The hydraulic pressure developing section includes a curved wall bounding a hydraulic chamber in which the impulsive hydraulic pressure is generated. The motive power includes a plunger movable in the motive power section and having a portion which extends into the hydraulic pressure developing section, and which has a curved end facing the curved wall. The hammer is impulsively movable in said motive power section in response to force applied against the plunger in order to displace it into the hydraulic pressure section for generating an impulsive hydraulic pressure. A working section communicated with the hydraulic pressure developing section and comprises a mold for the material to be worked.
摘要翻译： 使用脉冲液压的材料成形装置包括动力部分，其包括具有可在气缸中移动的锤的气缸。 动力部分连接到液压显影部分。 液压显影部分包括围绕产生脉冲液压的液压室的弯曲壁。 动力包括可在动力部分中移动并且具有延伸到液压显影部分中并且具有面向弯曲壁的弯曲端部的柱塞的柱塞。 响应于施加在柱塞上的力，所述锤在所述动力部分中是可冲动的，以便将其移动到液压部分中以产生脉冲液压。 与液压显影部分连通的工作部分包括用于待加工材料的模具。
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公开(公告)号：US3575025A
公开(公告)日：1971-04-13
申请号：US3575025D
申请日：1965-10-20
申请人： TOKYU CAR CORP
IPC分类号： B21D26/02 , B21D26/041 , B21D26/06 , B21D26/04
CPC分类号： B21D26/041 , B21D15/10 , B21D26/06
摘要： A pressure forming device comprises a liquid pressure chamber which communicates with a mold-forming member having a mold cavity into which an article to be formed is inserted. A plunger is mounted for sliding sealing movement in respect to a wall bounding or communicating with the pressure chamber so that it may be moved rapidly in an impulsive movement to displace liquid of the chamber against the member to be molded in the mold cavity to form it to the configuration of the cavity. Means are provided for regulating the movement of a hammer to strike the plunger member to move it in an impulsive movement, and various means are shown for the construction of a mold cavity member and for the means in holding the member to be molded to permit its selected deformation.
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