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Patent Searching and Data


Matches 701 - 750 out of 2,726

Document Document Title
JP2003329385
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 t...  
JP2003326320
To perform large-scale bending without causing cracks, burrs and necking by press working for forming a bent part on a part of a metallic sheet.The bending method of the metallic sheet for forming the bent part by bending at least a part...  
JP3492642
To provide a metal film structure of a good quality by simplifying a negative angle forming die so as to make inexpensive precise. The negative angle forming die consists of a lower die for mounting a metal plate work on a supporting par...  
JP3492797
PURPOSE: To achieve the burring of a metallic tube in a short time, and to finish it beautiful. CONSTITUTION: In a burring method, a jig having an inclined part 15 is inserted in a metallic tube 90 with a lower hole 91 formed therein, th...  
JP3492165
To make it possible to mold caps having the plural kind of sizes, and also capable of making a fine adjustment at the time of molding them. This device is constituted so as to mold a cap having a cylinder portion Sa by draw processing of...  
JP2003321723
To provide an Al-Mg-Si based Al alloy sheet which has excellent bendability such as hemming in particular even if subjected to room-temperature aging and also has excellent press formability, low-temperature age hardenability, etc.As the...  
JP2003320422
To provide a motor-driven apparatus for forming pipe flange capable of stopping only the advancing action while maintaining the rotational force of a forming member at finish machining.A flange 56 is formed at the end part of a metal pip...  
JP2003320428
To provide a hemming device which is small in size as a whole, has a simple structure, is manufactured at a low cost and, in addition, generates no strain in an outer panel.A hemming device 10 equipped with a bending die 70, having a pre...  
JP3489598
PURPOSE: To form branch pipe parts with a uniform thickness and high accuracy while preventing the formation of flaws on burring inside surfaces if the material of a base pipe is a soft material (aluminum alloy, etc.). CONSTITUTION: This...  
JP2003311348
To provide a compact exchanging system in which upper and lower press dies are exchanged in accordance with change in the type of workpiece, in a hemming device for performing hemming process on an automobile door panel, for example.In t...  
JP2003311337
To provide a compact bender for reducing noise, preventing an oil leakage, and requiring no piping space in a hemming device to fold an edge part of a work by pressing a bending blade against the work.The bending blade is provided in an ...  
JP2003311347
To provide a rotary cam press that causes no failures such as deflection or difference in level in the end part of a workpiece, even if negative angle forming is applied on a curved end part of the workpiece using a plurality of rotary c...  
JP3488266
PURPOSE: To prevent the cracking phenomenon from occurring at the time of forming by pressing a bending edge part continued at a specific height on either side of front or back face at the edge part of a square like opening part drilled ...  
JP3488275
PURPOSE: To reduce the defective influence of thermal strain, etc., given onto an outer panel of a die or a hemming part and to improve the thermal energy's efficiency in a hemming time of thermosetting a thermosetting adhesive interposi...  
JP2003305567
To reduce difficult welding works and perform improved workability, prevent wide quality dispersion, and reduce the connecting strength when a gusset plate is connected with a pipe member, and prevent bead increase and visual impair when...  
JP3485777
To chamfer one end part inner edge of a cylinder formed from a metal stock and to smoothen the periphery of the one end part. After a bottomed cylindrical work stock R is formed in an upstream process Or, in a next bottom face press proc...  
JP2003290841
To adequately bend a steel plate formed so as to have an edge part along an arc of a virtual circle without any trouble on the edge part.A forming roll set 1 disposed on both sides of a reference forming roll set 1' forms a movable formi...  
JP2003290853
To easily manufacture an aluminum cup-shaped casing of non-circular (dissimilar) shape, roundness of small radius at corner parts, and thin-walled and relatively high shape and structure with high dimensional accuracy and excellent yield...  
JP2003285121
To form a flange with a small burring bend radius which can secure a larger seal area than a conventional flange without extending a seal seating face outward in its radial direction whereby the flange can be made compact.The method for ...  
JP2003285128
To provide a forming method for a hollow member and its end which is superior in design and also low in price by processing the end integrally with a middle part.The forming method is provided with a process, in which a hollow tube 16 ha...  
JP2003269428
To provide structure in which a forming accuracy is maintained without damaging a screw portion on the screwed sheet metal side by a non-screw portion in a technique to screw a thin fixed sheet metal.A thin fixed sheet metal 3 is placed ...  
JP2003266130
To easily bend a sheet metal having desired length and thickness at desired width and angle at a job site.This bending tool has a constitution in which a pair of rotary circular, truncated conical or conical guide rings 14, 15 are provid...  
JP2003266129
To provide a hemming method for simplifying a hemming device and performing adequate working at low cost, and the hemming device used therefor.This hemming device comprises a lower die 102 to set the work W at a predetermined position an...  
JP3474698
To enhance the fatigue strength at the connecting part between a flange and pipe with simple working, high productibity inexpensively. A reinforcing pipe 2 having the outer diameter smaller than the inner diameter of a main pipe 1 is ins...  
JP2003260526
To provide a cam device which can quickly and easily conduct positioning of the front end of a tool, confirmation work, and maintenance, inspection, and replacement work of a coil spring without complicated work such as dismounting from ...  
JP2003260519
To provide a flaring tool capable of easily executing flaring work even in a small working space, and preventing erroneous operation.When a handle 22 is rotated alternately forward and backward to one direction (e.g. clockwise) and the d...  
JP2003260524
To provide a method for pressing a mold having a cylinder part with a curl which can perform burring and outward curling as post treatment without cracking and breaking by chamfering the periphery of a punched hole after punching and can...  
JP2003252352
To provide a screw lid made of a metal which has extremely good appearance and is smoothly opened and closed and has a high lid covering strength, and a method for manufacturing it.A circular top board 2, a cylindrical skirt part 3 conti...  
JP2003251416
To provide a device for pressing and forming the end parts of a hollow material efficiently and accurately though the end parts are formed with punches by inserting core dies for satisfying a required formed shape into the hollow materia...  
JP2003251415
To provide an apparatus and a method for bending the end face of a cylindrical body having high flexibility by which the edge of the end face of the cylindrical body can be calked in one process and easily applied to the cylindrical body...  
JP2003251417
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 fo...  
JP2003251422
To provide an auxiliary bending roll of a bending machine for accurately bending the reinforcing plate of an outer wall panel.This roll is the auxiliary roll 14 for using for the bending machine with which the side edge of the reinforcin...  
JP2003251424
To provide a desired working at a predetermined position of a bottle can even when the can is thermally inflated.A bottle can manufacturing device has a position regulating means 80 to regulate a working machine at a predetermined positi...  
JP3465151
PURPOSE: To facilitate connection and arrangement of the connecting head by forming a swell-out wall by inwardly crooking an expanded diameter part in which a reinforcing ring is inserted to make the whole of the connecting part compact....  
JP2003236638
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 ri...  
JP2003236637
To easily manufacture a two-piece wheel by plastically forming regular curls of a rectangular section on both ends of a metal cylindrical member, and directly forming a rim from the cylindrical member.A drop center part is formed on a ba...  
JP2003236636
To easily manufacture a two-piece wheel by plastically forming regular curls of a rectangular section on both ends of a metal cylindrical member, and directly forming a rim from the cylindrical member.A drop center part is formed on a ba...  
JP2003230921
To provide a compound press die capable of performing highly accurate machining, when a work is subjected to inverse bending and pierce machining in a pressing process by the compound press die 1.The compound press die 1 comprises a pier...  
JP3461748
To manufacture a part item having a bend clinching part such as a complicated vehicle door with a molding roller and a robot alone without a need for joint usage of a portional die or the like. A hemming processing method and a hemming p...  
JP2003225721
To provide a hemming system favorable for works of small lot multi- production in which the lower die setup accompanied by the change of the kind of the works can be performed with excellent workability.In this hemming system in which a ...  
JP3455946
To provide a burring die capable of releasing a work from the burring die only by moving the work upward after the burring of a side surface of the work. This burring die comprises a die main body 2 having a thick- walled part 2a and a t...  
JP3454107
To prevent the generation of spring back in an outer plate surface and to improve the quality of a panel by providing a thiner part than other part in plate thickness in a flange part of an outer panel forming a heming structure within t...  
JP2003205323
To provide a press die which causes no flange deformation in the case that punching and flange bending are consolidated into one process.The press die performs, continuously to punching, bending of a flange on the inner circumferential e...  
JP2003205321
To provide a burring processing method for forming a boss part which has a small wall thickness deviation and molding height higher than before, and to provide a die for the same.A sheet metal to constitute a cylinder material 81 is extr...  
JP2003205320
To provide press processing equipment which can carry out draw-back bending cam and punching to an end of the same workpiece with one turning cam without damaging a punching die formed at the turning cam by the running of a piercing punc...  
JP3452757
To provide a press forming die which produces an article without faults of the deformation of a flange part or a collar root, etc., of generating in the time of pressing. A punch 33 has a large diameter part (B part) and a small diameter...  
JP3452491
To provide a punch holder device capable of attaching/detaching a punch tip to/out of a punch holder with one touch. A locking piece 37 capable of projecting to or retreating from the inner peripheral surface of this punch loading hole 9...  
JP3452756
To provide a press forming die which produces an article without generating fault of deformation or crack on a root of a collar of a metal sheet with a flange collar piercing hole. A die 36 is composed of an inside hollow member 35 havin...  
JP3452165
To shorten a robot teaching time for adjusting rolling pressure of a roller in comparison with the conventional hemming method in which hemming is performed by utilizing rolling-press action of the roller of the tip part of a robot arm. ...  
JP3451592
PURPOSE: To finish with a good appearance by partially pressing only a partial range of a corner part and deforming in an initial period of a preliminary bending at the time of machining the corner part of a hem flange. CONSTITUTION: A c...  

Matches 701 - 750 out of 2,726