Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 701 - 750 out of 2,834

Document Document Title
JP2004344968
To manufacture burring worked part having a flange part extended from a metallic sheet by minimizing the bent part on the inside of the root (outside of bending) without generating buckling on the outside of the root of the flange part.T...  
JP3623474
To significantly reduce a process time for hemming by completing a hemming process by rolling-pressing a bending roller only one time in order to solve the conventional problem that it is difficult to reduce a process time because a bend...  
JP2004337900
To provide a double cam device with which a die can be shifted without generating wearing and galling, etc., and further, without bringing about a large rising of the cost and the lowering of productivity.This double cam device 1 is prov...  
JP2004337971
To provide a structure for joining tubes made of different metals which are highly reliable and are excellent in strength and airtightness.The tubes 1 and 2 made of different metals respectively are joined by means of a joining fixture 3...  
JP2004337966
To form a mounting flange 27 at the end of a tube 21 composed of an aluminum alloy extruded material, and also to make mounting holes 28 in the mounting flange 27.A tube 21 is surrounded with an electromagnetic forming die 22 having a th...  
JP2004330208
To provide a female screw member, and a method and a device for manufacturing the female screw member which have a simple structure and by which the efficiency of mass production is improved.The female screw member 30 is formed protrusiv...  
JP2004330285
To prevent the falling down of a cylindrical body by forming a flange-like part at the tip part of the cylindrical body erected on a metallic plate member without performing a caulking work.A first cylindrical body 21 is stood up on the ...  
JP2004330246
To provide a fuel inlet, which is excellent in sealability, and further whose screw part is formed at a correct position.One end side of a long stainless-steel pipe (metallic pipe) is radially expanded using a core metal or the like. The...  
JP2004322167
To prevent the occurrence of juncture on a pressed product caused by bending of a movable cam, in a pressing apparatus forming a negative angle part on a work by combining the plurality of movable cams.The turning cam 5 and a guiding cam...  
JP2004324920
To provide a heat transfer tube and tube sheet joint structure for reducing the weight and size of a heat exchanger by using a thin plate for forming a tube sheet while eliminating the need for machining a heat transfer tube insertion ho...  
JP2004322144
To provide a press machine capable of preventing occurrence of a burr in face pressing, a die for face pressing and its pressing method, and a metal plate and recording device which can improve reliability in injury prevention of an oper...  
JP2004317089
To reduce the weight of a connector and material thereof, to facilitate manufacture of the connector, and to shorten the working time.This connector 7 for a heat exchanger is composed of a joint part 71, a communicating part 73 and a bra...  
JP2004316786
To provide a female side structure A of an easily manufacturable pipe joint.A curled outer flange part 3 and a large diameter short cylindrical part 4 in which a male side structure B on which a seal material S is fitted is inserted are ...  
JP2004305357
To provide a method of manufacturing an implement for using metal thin wires with an action part made of metal thin wires connected to a metal handle such as an ear pick.The implement for using metal thin wires is manufactured by the fol...  
JP2004306065
To provide a method for easily working a screw hole by a press work in a projecting part having a through-hole by the burring.A projecting part 2 having a through-hole is worked by the burring in advance on a workpiece 1 of a metal plate...  
JP3608879
To bend the metal plate without causing deformation such as wrinkle, strain or cracks in the roll forming method of the metal plate, in which obtuse angle shaped bent parts are formed on both sides of a circular arc part by supplying con...  
JP2004291072
To provide a working method of an end part of piping, a method that causes no noticeable lowering of strength or breaking at the end part even in the case of a large expansion rate in expanding the end part of the piping, and also to pro...  
JP2004291397
To provide a coated steel strip which prevents the occurrence of enamel hairs on an end surface when flange bending processing is applied to the end part of a coated steel strip subjected to shearing processing and a method for bending t...  
JP2004290995
To provide a staking machine and a staking method with which the good staking processing is performed without developing the strain on an including member, in the staking machine and the staking method used when a staking member is stake...  
JP2004276037
To provide an inexpensive caulking structure in which troubles such as cracks hardly occur during the caulking operation.A pressed product of a metal plate in which a shaft-shaped part 18 forms a bottomed cylindrical shape and an outward...  
JP2004270728
To provide a rotating part eliminating the need for deburring and preventing peeling off of burrs (scattering of burrs), and to provide a manufacturing method of the rotating part.The rotating part 1 comprises: a first member (stepped ge...  
JP2004270514
To provide a rocker arm and a method of manufacturing the same that eliminates a punching process and improves material yield.(1) A rocker arm 10 is formed of a steel pipe. Counter parts 21a and 21b of a first radial direction of the ste...  
JP2004261835
To provide a bending method by which enamel hairs are not generated on an end face when applying flange-bending to the end part of a sheared pre-painted steel sheet.When performing the slide-bending of the end part by pressing the end pa...  
JP2004261856
To manufacture a bumper stay 21 in the end parts of a shaft part 22 of which mounting flanges 23, 24 having long holes 25, 26 for mounting are formed by a simple method.Circular holes 28, 29 penetrating through the tube wall are formed i...  
JP2004255384
To easily protrude a high-precision rib to bite into an outer circumferential surface of a damper, at an axially intermediate part in an inner circumferential surface of an inner diameter side wall of a damper pulley made of metal sheet....  
JP2004255447
To provide an oil-pressure generating source device which is used for fine adjustment to deal with oil spill from piping, trial punching, bending and forming work to a metallic thin plate and is useable to small scale production, and to ...  
JP2004250749
To provide a high strength thin steel sheet having burring properties, and to provide a production method therefor.The steel sheet consists of a steel comprising 0.01 to 0.1% C, 0.01 to 2% Si, 0.05 to 3% Mn, ≤0.1% P, ≤0.03% S, 0.005 ...  
JP2004243332
To provide a compact and inexpensive hemming device.A hemming device 10 has a link supporting mechanism comprising: a hemming die 2 fixed on a base 1; a link supporting block 3; a final bending punch 7, which is turnably supported around...  
JP3589237
To surely secure pressure-withstanding strength in the connecting part between a heat transfer tube and a thin tube when the thin tube is directly connected to the heat transfer tube by brazing. In the connecting structure between the he...  
JP2004237300
To make a sheet material after working to be easily demolded, when using a shift-bending die to form a flange on the sheet material.In the lower-die side of a shift-bending die 18, a cam holder 6 and a lower-die punch 7 are mounted to su...  
JP2004223579
To provide a hole chamfering device with which the hole of a work can be accurately chamfered in a short period of time.This hole chamfering device 1 has a punch 2 and a die 3. The punch 2 is rockably held in a punch holding die 4 and ha...  
JP2004224417
To prevent water from penetrating into the cut end part of the inside of a curl part further effectively in a metal can in which at least the vicinity of the opening of the can is formed of a metal plate, both surface of which is covered...  
JP2004223583
To provide a burring processing method for sheet with which even in the case of being a material, such as aluminum, having small elongation, a crack at stand-up part is not developed and the uniform thickness is ensured.The burring proce...  
JP2004216388
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 ...  
JP3580769
To provide a press working method capable of easily and securely removing burrs with a press and a presswork piece with no burrs. In a press working method, the circumferential part 2 of punched holes 11, 14 in a work piece 1 are pressed...  
JP2004209576
To provide a production device and its control method which carry out efficient operation even if a plurality of kinds of works are mixedly fed.The production device has a control part 600 for adjusting timing of conveying out of the wor...  
JP2004202510
To uniformly apply hemming to a bent flange part without damaging the outside surface of an outer panel.A hemming apparatus 1 has a lower die 10 and an upper die 20 which is arranged vertically movably above the lower die and a work 60 w...  
JP2004197932
To provide a method for manufacturing a spring assembly capable of expecting a reliable caulking state.The spring assembly comprises an annular plate 1B; and a compression coil spring 2. In a method for manufacturing the spring assembly ...  
JP2004190798
To provide a metallic conduit allowing liquid flowing therein to securely flow into necessary portions through holes formed therein, and a method of boring the metallic conduit.This metallic conduit 10 comprises holes 20 in the wall 11 t...  
JP2004181498
To provide a hemming die apparatus for making a moving locus of an integrated punch at hemming work the shortest locus even in constitution in which a prehemming punch and a main hemming punch are integrated.The edge part 9a of a skin pa...  
JP3565939
PURPOSE: To obtain a manufacturing method for a pulley in which the web part can be positioned in the middle of the boss part. CONSTITUTION: The pulley E is produced by the first process in which a cylindrical boss part 51 and a web part...  
JP2004167593
To provide a method of press working excellent in shape fixability which can efficiently manufacture a component of which the wall section has a small warp, in obtaining, by press working, the metal plate component having the wall sectio...  
JP3563427
PURPOSE: To enable working to be completed in one stage by providing with a bending die for bending a work, which is clamped with a counter holder and a punch, and with a folding arm member which holds the work until it is bent at right ...  
JP3563431
PURPOSE: To prevent the buckling phenomenon of a panel by arranging a thrust member which freely penetrates a polygonal hole part on the panel at the one side of the upper and the lower metals, provides a bending die so as to be freely r...  
JP2004162794
To provide a shaping method for a retainer of a ball bearing capable of obtaining a sufficient supporting force of balls and improving the wear-durability.In the shaping method for the retainer of the ball bearing rotatably retaining a p...  
JP2004154800
To provide a press forming device with which the reduction of the cost of equipment and running cost and reduction of installation space are expected while maintaining working accuracy.A work W is press-formed into a second work W2 which...  
JP2004154839
To provide a metallic member with a bent flange which can secure a bent flange at least 1.5 times as high as the present member and still does not cause a fracture, neither changing the size of an inner radius R beyond a processing limit...  
JP3558654
PURPOSE: To shorten the time required for exchanging a metallic die and to improve the working efficiency by using one forming metallic die for three processes of curling forming. CONSTITUTION: A work W is horizontally held by a turret p...  
JP2004141912
To provide a structure, which has a simple device-configuration and where a preliminary bending work and a permanent bending work subsequent thereto are conducted in one motion.A link 19, which moves up and down a base 4 having a slide b...  
JP2004141963
To enhance the strength of a burring punch structure, and to reliably discharge scraps by solving problems that the spring force is weak in an ejector pin built in a burring punch in the burring punch structure used for a prepared hole f...  

Matches 701 - 750 out of 2,834