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Patent Searching and Data


Matches 551 - 600 out of 2,834

Document Document Title
JP3782172
To provide a production device of a reduced size, in which separation of a die at forming is surely suppressed without using a large size pressure receiving block separately constructed, inclination of a split die is prevented and which ...  
JP3781092
To provide a flange forming method and a device capable of easily forming a flange relatively large in diameter without developing cracks by pressing a work in the axial direction thereby surely buckling it. A work W is bucked to the spe...  
JP3780745
To exchange a die in a short time by simplifying configuration of a device as a whole so as to restrain an installation space. On a production line 25, a work W, which being composed of a vehicle body side, is firmly positioned and conve...  
JP3781099
To provide a hollow product which prevents flash from generating inside and allows a fluid to easily and securely flow into the internal section mutually joined of a hollow member. A joining section 15 joined by a joining section 16 of a...  
JP2006061931
To provide a hemming technique by which working time is shortened and productivity is raised.This hemming apparatus 20 consists of a moving structure 30 which moves traversely toward first and second works 12, 13 and also is movable vert...  
JP2006061987
To provide a metal member forming method for forming a flange having a shape corresponding to the shape of an outer surface of a counter member to be bonded at an end of the metal member by an electromagnetic-forming method, and to provi...  
JP3775310
To facilitate the design and standardization of a hemming device while preventing degradation of workability and increase of equipment cost. A second link 17 of a toggle link mechanism 11 is lowered together with a pre-hemming blade 39 f...  
JP3775311
To provide a hemming device capable of hemming a panel to be machined comprising an Al-Mg-Si based 6000 series aluminum alloy without generating cracks on a surface of a hem bending part and opening in a flange end part. A step part 35 i...  
JP3777367
To provide a method for manufacturing a fin for a heat exchanger capable of forming a smooth tubular protrusion in a shortened process than before. When pierce-burring the tubular protrusion 20 of prescribed height which protrudes in one...  
JP2006056378
To develop a shaping method of a lid excellent in appearance and designing, easy to shape, and low in manufacturing cost.In the shaping technology for an external lid for a fuel filler openably/closably mounted to the fuel filler of an a...  
JP3773571
To press a steel plate so as to provide a mass part on the periphery. A flywheel 5 has a mass ring 13 wound in a flat spiral form on the periphery. The mass ring 13 can be provided by a process for forming a shallow cup in the central pa...  
JP3773613
To provide a cylindrical member having no chucking miss at the time of taking out from a conveying vessel, a manufacturing method thereof and a jig therefor. A closing part of the cylindrical member 1 has a shape incorporated into the ou...  
JP3773930
To obtain the processing of a high quality work and to prolong the service life of a cam follower arm. In a negative angle forming die, a lower die for laying the work of a metal-made thin plate on a supporting part and an upper die for ...  
JP3773317
To provide a device of a locally continuous feed bending type of being able to be treated with a small size, because in order to machine a work of a large bending length, the frame of its device is made large, the load of machining is ma...  
JP3769594
To provide a heat exchanger having sufficiently high heat exchange capacity by sufficiently securing the contact area of a fin collar and a heat transfer pipe inserted inside. This heat exchanger fin 31 has a plate-like fin body 32, and ...  
JP3768444
To manufacture a large number of flange-like products and flanges in cylindrical intermediate products at small manufacturing cost and operation cost. The intermediate product is received in a lower tool 4 disposed in a irrotational feed...  
JP3769062
To obtain the satisfying precision in the inner and the outer diameter works of a cylindrical part without causing any gap in the root part of the cylindrical part. In the burring for forming a cylindrical projection in the inner part of...  
JP2006035305
To provide a punching tool with which a material to be punched can easily be punched to form a hole and bending can be applied to the edge part of the formed hole.This invention relates to the punching tool which is provided with a fixed...  
JP3765880
To provide a manufacturing method in which a component having at least a piercing part in a double wall in a relatively inexpensive manner. A component having a piercing part in a double wall, in particular, a cylindrical supporting eye ...  
JP2006026700
To provide an automatic flare-forming tool having a simple configuration capable of using a rotating tool such as an impact screw driver as a drive source.The automatic flare-forming tool comprises a rotated member 1 to which the rotatio...  
JP2006026690
To easily manufacture an internal/external double tubular body which has high heat resistance and does not cause fine wrinkles, crack or buckling on the surface, by reversing work, regarding the manufacturing method of the internal/exter...  
JP3761656
To perform calking working with a high precision by preventing deviations in positions, etc., of respective works, also, to quickly perform the calking working, and to improve efficiency in manufacture. In this device, seating parts 11 w...  
JP3760195
To provide the device and method for bending a flange part provided on a panel upward only in one process by using a cam mechanism. This device is constituted so that the flange part 1a is bent upward by clamping the panel 1 on which the...  
JP3760872
To provide a rim for wheel having a rim flange free from any deformation or damages while reducing the weight of the rim. The rim flange 3 comprising a double structural part in which an end part of a rim part 2 in the direction of the r...  
JP2006015394
To provide a method and an instrument for easily analyzing spring-back after releasing the restriction with a metallic mold to a hemming structure joining an outer panel and an inner panel by turning up with a hem-working using the metal...  
JP3757601
To uniformly chamfer the total periphery of an edge part for a short time by pressing a ball to one edge of a hole to perform the deformation processing on an edge part of the hole, and then grinding the edge part. A nozzle body 1 of a f...  
JP3759502
To provide a pipe in which a usable space can be secured by reducing a dead space of a pipe to be arranged in a heat exchanger or the like, a working method capable of molding the pipe in less working processes, and a working device. The...  
JP3758051
To provide a manufacturing method of a hollow cylindrical body to improve the precise processability and the productivity of parts of composite shape. A collar 2 made of stainless steel sheet is rectangular before binding. The collar 2 i...  
JP2006007261
To provide a pressing method and a pressing apparatus capable of forming a negative angle folding part with high accuracy by regulating the negative angle folding part from inner and outer sides when forming the negative angle folding pa...  
JP3756299
To absorb creases and warps generated in the top corner and make smooth the surface of the top corner by arranging a creasing flange, which extends to respective curled parts of right and left top corners and stretches over the panel fac...  
JP3755130
To provide a flange forming machine forming a final rectangular flange in a flared shape by means of one kind of a forming roll. A pipe fixing base 2 composed of a mandrel T inserted to a pipe P and a chuck 3 firmly holding the outside o...  
JP2006006017
To provide a method of manufacturing a yoke for a VCM which can realize surface smoothing of the yoke for the VCM without barrel polishing or electrolytic polishing, in which the removal of a burr becomes incomplete or which easily becom...  
JP2005349425
To provide a method of producing a double pipe by which the double pipe can be produced even in a tube stock thinner in wall thickness.The tube stock 1 is inserted into a tapered hole of a clamp die and a punch is inserted into the tube ...  
JP2005349457
To provide a hemming die and hemming mold equipment which do not require the change of a mold for a pre-process and a mold for a post-process and can easily position a workpiece at the center of the mold without causing any positional sl...  
JP2005349471
To provide an apparatus for roll hemming which does not require a die, thus to obviate the period required for the designing and production of a die.In the apparatus for roll hemming, a flange 30 with a shape in which the bending part 12...  
JP2005349420
To provide a device for processing an edge of a plate stock, which processes corner parts of the side ends of plate stocks different in material kind or plate thickness into a curved face shape substantially free from ridgeline, and whic...  
JP2005351383
To provide a steel pipe with flare having the flare having excellent rigidity, strength, and durability and large width being suitable for a steel pipe column of a steel pipe, a fluid transportation pipe, and a rotary press-fitting steel...  
JP3750435
To implement both the preliminary hemming and the permanent hemming subsequent thereto in a short time with a simple structure and under simple movement. A swing arm 5 is moved from a waiting position P1 to the hemming position in an int...  
JP3752283
To execute deburring and chamfering of the hole periphery of a work punched with a press apparatus, etc., in one time of working by installing a lacked part of larger internal shape than the external shape of a punch on the face of a die...  
JP2005342764
To provide a burring device capable of efficiently and continuously performing burring.The burring device comprises a work holder 10 which has a hole 14 for burring and holds a work 50, an pressing rod 20 to turnably support the base end...  
JP2005344522
To relatively easily form a pipe with a spool on a throttle body as one unit.In the throttle body 3 having pipes 11, 12 for connecting elastic hoses thereon projected to an outside, the spool 13 is formed on a tip parts of the pipes 11, ...  
JP3748363
To suppress an oscillation arm from elastic deforming with the reaction force of pressing force in hemming a work with a hemming edge. A push up roller 24 of one end part of the oscillation arm 21 connected to an upper die 20 elevating i...  
JP2005337347
To provide a thin-walled pipe, a manufacturing method of the thin walled-pipe and a molding device of a folding back part of the thin-walled pipe whereby danger of hurting a hand in handling can be reduced, and manufacture can be facilit...  
JP2005324231
To provide a highly reliable technique for machining an edge of an end.In an apparatus for machining the edge of the end, the size of an intermediate portion having a rounded edged portion in the direction of the thickness is optically d...  
JP2005324208
To easily perform flaring work in a narrow space.In an electric flaring tool, the axial direction of a main spindle 3, which has, at one end, a cone 30 for flaring an end part of a tube 8 to be worked and is rotatably driven, and the ope...  
JP3740941
To provide a method to efficiently manufacture a light weight connecting rod, and provide a die therefor and the connecting rod. In a hydrostatic bulge forming method, in which a metal stock tube is accommodated in a die, a bulged part i...  
JP3742569
To provide a metal panel and a method for manufacturing the same which meets various dimensional requirements quickly at low costs and does not show poor appearance because of the exposure of rusted lateral edges of continuously adjoinin...  
JP3739936
To easily form a part having an expanded part with high dimensional accuracy on a tip part of a cylindrical part without increasing the number of processes. A bottomed cylindrical part 43 is formed in a flat plate 7 by drawing the plate ...  
JP3738402
To reduce forming process and to prevent fractures of a pipe stock by continuously carrying out a preliminary process in the first and the second forming processes, forming an annular flange part in the third process, forming the first a...  
JP2005313199
To provide a method for joining metallic plates with each other, which method can improve appearance of the metallic plates after joining with each other than before, and to provide a joined metallic plate structure.The present invention...  

Matches 551 - 600 out of 2,834