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JP2004074247 |
To provide a curling working apparatus and a curling working method having a wide application range where not only a can with a circular cross-section but also a can with a noncircular cross-section can be treated.In the curling working ...
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JP3528112 |
To obtain a small light device for manufacturing flexible tubes by a method wherein the force added by the action of fluid pressure for pressurizing a tube of base stock to a supporting body at the tip of a moving mandrel is not added to...
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JP3529606 |
To provide a method for manufacturing a metallic drum which prevents water from oozing in between a drum part and a circular member and further is capable of saving man-hours and improving productivity by faborably executing seaming of h...
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JP3529370 |
To provide a die for press-forming a material to be formed which is suited to the manufacture of a lightweight and highly strong casing for housing equipment especially the material to be formed which is provided with a U-shaped bent rei...
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JP3530545 |
PURPOSE: To easily and efficiently execute hemming of various metallic plates, and also, to surely obstruct a fact that a crack, etc., are generated on the outside surface. CONSTITUTION: On the inside surface 12 of a metallic plate 10, n...
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JP3526658 |
PURPOSE: To shorten a process for folding work and to save the lavor and automate this work at a comparatively low cost by further descending after bending the bending part at base part side of a sheet material to the base part side of t...
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JP3527684 |
To simultaneously form flanges at both end parts, to reduce a cost, a set up time, a handling time and to eliminate a die holding space when forming the flanges at both end parts of a cylindrical body. Drive rollers 4 of which the large ...
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JP3523414 |
To cut the end edge of a panel work by one process with the same press dies, and to form curling bent at a negative angle. The projecting part Wa of the panel work W whose projecting part Wa is previously worked at a tip part, is positio...
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JP3522813 |
PURPOSE: To improve the thermal energy's efficiency by heat-hardening a thermosetting adhesive interposing in a hemming part with a heating means installed between a hemming position and a carrying out position of a work. CONSTITUTION: A...
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JP3521402 |
To provide a metal can with a screw keeping hermetical sealability. The curl crushing process for forming a plane section 5b is applied on a curling section 5 formed on the upper end of a mouth section 4 so that the curl section is bitte...
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JP2004052130 |
To provide a heald and a dropper each not causing the breakage of a warp.The heald and the dropper each having the warp-inserting portion is characterized by disposing a turnup portion in at least the warp-contacting portion of the perip...
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JP3521017 |
PURPOSE: To reduce the radius of the corner at which a work can be curled by fitting a roller tool in the inclined condition by the prescribed angle. CONSTITUTION: The curing of the end part of a work 2 by a roller tool 1 is suffiently e...
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JP3520479 |
PURPOSE: To achieve the appropriate curling to a dissimilar cylindrical body. CONSTITUTION: A roller 1 achieves the curling to a main body part of relatively large diameter at the end part of a dissimilar cylinder by being guided by a gu...
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JP2004042061 |
To provide an aluminum alloy plate member having an outward appearance of a hem part equally matched for the outward appearance of the hem part made of a steel plate.This aluminum alloy plate member 1 having the hem part 25, is composed ...
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JP2004042109 |
To provide an apparatus for moving a rotary cam in a negative angle shaping die with which the interfere of the rotary cam is avoided and shaving-work needed to the accuracy of rotary cam end part is unnecessary and the strength of the r...
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JP2004042066 |
To provide a forming method of a metallic member by which a flange having a shape corresponding to the outer surface to be joined of the member of the other party is formed in the end part of the metallic member by electromagnetic formin...
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JP2004042052 |
To arrange projecting teeth between a rotating shaft end surface and a sensor faced to this surface, in the case of being comparatively short in this distance between the above two.In a platy metal-made ring 1 with teeth, in which a cyli...
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JP3518336 |
To provide a negative angle forming die capable of sliding so that a lower die does not interfere with a work after forming a negative angle in an end part of the work. A lower die on which a work is placed and an upper die which is capa...
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JP2004034153 |
To provide a cam type press which makes a working distance shorter and a working speed higher by reducing the size of an actuation driver.The cam type pressing device for forming a workpiece panel 5 by utilizing an upper pad 7 fitted to ...
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JP3517184 |
To eliminate interference with a bending die and to easily/efficiently conduct burring of a bent end part of a metal plate and countersinking for a countersunk screw in forming a bulged part for tapping hole of the bent end part of the m...
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JP2004025215 |
To provide a working method for a vacuum double body sufficiently enhancing the heat insulation function of the vacuum double body by plating the surface of the side to be the interior space in advance prior to the bending work of the va...
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JP2004025188 |
To provide a device with which high-quality working is enabled and also impact is absorbed even when the impact is added to a rotary body by correctly determining the turn starting position and the turn terminal position of a cam followe...
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JP2004025256 |
To provide a press-working method excellent in shape freezing property and flanging tool used for the same by which a metal-plate component having small warpage in a vertical wall part is efficiently manufactured when obtaining the compo...
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JP2004017077 |
To provide a hemming device capable of obtaining an excellent hemming quality free from a gap (t) between an inner circumferential corner part hem-punch and an inner circumferential straight line hem-punch, and also free from distortion ...
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JP2004020174 |
To provide a small-sized and lightweight radiation fin having excellent heat exchange efficiency, a heat exchanger using it, and its manufacturing method.This flat radiation fin is constituted by forming integrally a sheet metal having t...
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JP3512662 |
To allow a rotary shaft to be smoothly rotated at a constant angle in the range of total angles by pressing the rotary shaft by means of a bark and forth moving driving cam. A sliding stepped face 6 is formed to be projected at one end p...
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JP2004011898 |
To provide a bush bearing which can be easily pressed into a press-in hole without crushing an opening end and without generating metal chips when pressing into a hole of a housing and which can secure circularity of the inner peripheral...
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JP3509810 |
To provide a device with which high-quality working is enabled and also impact is absorbed even when the impact is added to a rotary body by correctly determining the turn starting position and the turn terminal position of a cam followe...
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JP3510921 |
PURPOSE: To always make a crush state of the tall rib of a flat deck plate almost definite, to make the number of superposed plates at a crush part few, and to prevent the separated parts from generating at the crush part in an upper fla...
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JP2004000999 |
To provide a connected structural body of two members having good appearance and excellent connection strength without increasing the number of parts.This structural body is composed of a member 1 having almost square-shape cross section...
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JP3503805 |
To provide a rotary cam shaft is easy in design/production and capable of forming a shifted bent flange part and an adjacent negative angle part in one process. A negative angle formed part, which is extended more outside than an outside...
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JP3504653 |
To provide composite working equipment for a steel pipe which is compact and easily movable, and capable of performing not only the flaring of the steel pipe but also the grinding of a flared surface, the grooving and the lining peeling,...
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JP3498490 |
To improve workability and productivity in safety with a light burner of a worker and the obtain a high precise vent angle. A fixed die 72 and movable die 73 pinching the connecting end part 5 of the truss chord member 2 are provided in ...
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JP3496457 |
To reduce the expenditure of a die and to simplify the maintenance of the die, etc., by making one set of press die possible to execute plural kinds of working such as drawing, punching and bending. An upper die 3 supported movably in th...
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JP2003334618 |
To provide a heming molding method by which low cost and proper processing can be carried out and a heming molding machine used for the same, aiming at simplifying the machine.A workpiece is bending shaped, by setting the workpiece W at ...
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JP2003334615 |
To separate auxiliary pads from main pads in a mold for bending process and to simplify a moving structure of auxiliary pads.By using a flexible part 22, an auxiliary pad 15 is set to a main pad 14. Because of the flexure of the flexible...
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JP3494671 |
PURPOSE: To reduce a cycle time in a hemming device. CONSTITUTION: A cam mechanism for operating a pre-hemming mechanism 24, by which a preliminary bending blade D to perform the preliminary bending of a hem flange B is supported, is sep...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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 ...
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