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Patent Searching and Data


Matches 551 - 600 out of 6,740

Document Document Title
JP2010075950A
To achieve a method of forming a screw thread hole for efficiently stably obtaining a structure capable of securing strength of a screw.A chamfer part 33 is formed at an opening on a broken section side of a lower hole 14a formed at a pa...  
JP2010075931A
To propose a method of press-forming for accurately manufacturing a thin-wall cylindrical metallic part having a flange on the outer peripheral surface by press forming.A pilot hole 11 is formed in the center portion of a press-forming r...  
JP4439237B2  
JP2010058132A
To provide a method for accurately manufacturing, by press-forming, a ring-shaped belleville spring having a central circular hole, whose inner surface is rounded.A small-diameter central circular hole is press-blanked by applying upper ...  
JP4435376B2  
JP4425772B2  
JP4424580B2  
JP4418838B2  
JP4422200B1  
JP2010036218A
To provide a hemming apparatus, wherein the working accuracy of a hemming work is raised, and the working speed is increased to raise productivity and also reliability is improved by reducing components.There is disclosed the hemming app...  
JP2010036219A
To raise the accuracy of a hemming work and to raise the productivity by increasing the working speed.A hemming device 10 has an anvil 3 fixed to the upper part of a pedestal 1, a main hem punch 5a and a prebending punch 5b for applying ...  
JP2010029877A
To provide a hemming machine capable of reducing the wear of a guide roller itself, thereby improving its durability and reducing the manufacturing cost of the hemming work.The hemming machine is provided with: the working rollers for pe...  
JP2010005663A
To provide a hemming metal mold achieving continuous hemming of car parts such as a door panel, an engine hood, a trunk lid and an end gate of a pickup truck, having different shape of some parts with high production efficiency by making...  
JP2009544472A  
JP4383532B2  
JP2009285667A
To provide a pressing device which forms a flange part and a pierced hole in one step without damaging a work, has a simple structure, and quickly performs a series of processing, and a pressing method.A pressing device 10 forms a flange...  
JP2009279642A
To enhance the insertable property of a pipe in a boss, and to suppress wear and damages of the pipe inserted in the boss.A burring die includes a first plate, a second plate arranged opposite to the first plate to hold a platy workpiece...  
JP4375704B2  
JP4374335B2  
JP4377973B2  
JP2009262203A
To make sealing between two components unnecessary, by caulking them while generating compressive force in the radial direction between a pipe body and a circular plate.A stepped part 2 is prepared on an inner face on an edge side of the...  
JP4359821B2  
JP2009255158A
To provide a method of burring a metallic material by which the workability of punching work of a metallic material and the formability of burring work after that are improved.In the method of burring the metallic material in which the b...  
JP2009255094A
To provide a machining tool and a machining method for a lip part, capable of easily forming a planar and wide portion by bending a lip part of a C-shaped steel material.A pinching body 22 side of a machining tool 20 is inserted into a C...  
JP4358584B2  
JP2009248093A
To provide a method for manufacturing a pressed and wall-thickened product which enables the easy and inexpensive manufacture of a wall-thickened rising part keeping the inner peripheral surface parallel to an axis and wall-thickened.A m...  
JP2009248176A
To provide a pipe clamp device which prevents occurrence of a step extending in the axial direction of a pipe and located between upper and lower liners by pressing force in flaring, and to provide a flaring device using the same.A proje...  
JP2009248092A
To provide a method for manufacturing a pressed and wall-thickened product, capable of enhancing a freedom degree of the shape of a rising part to be wall-thickened.A metal mold 3 used for manufacturing a pressed and wall-thickened produ...  
JP4352777B2  
JP2009241089A
To solve the problem that, when performing a bending work, because the vicinity of the surface on the outside of the bent part is stretched and the vicinity of the surface on the inside is compressed, the compressed potion generates and ...  
JP4346951B2  
JP4343763B2  
JP2009226413A
To provide a drawing device with which a stage for removing burrs which are generated on a cut surface is performable as a stage continued to the drawing stage and a cutting stage.In a drawing device which is provided with a roller mount...  
JP2009534195A  
JP2009204216A
To improve reliability of brazing of a connection part between a tube end part of a heat exchanger and a tank.An annular protrusion 4 is formed on periphery of the end part of a tube 3, and a sectional periphery of a top part of the prot...  
JP4329294B2  
JP4328061B2  
JP2009197853A
To maximally avoid reduction in heat-dissipation properties without damaging effects such as safety and wear suppression of a brake pad in a brake disk having a petal-shaped outer peripheral shape in which radial unevenness circumferenti...  
JP2009190075A
To suppress the occurrence of wrinkles caused by cam bending.A press forming method is disclosed for forming a metal sheet 20 into a product shape through: a drawing step where a lower die 31 and a die 51 are clamped while relatively app...  
JP2009192059A
To provide female piping that is low in material cost and working cost and is easy to connect with male piping with high connection reliability.The female piping 20, which has a radially expanded portion 1 expanded from an inside diamete...  
JP4317368B2  
JP4313711B2  
JP2009173302A
To accurately form a corner between bent parts by eliminating interference between the adjacent bent parts.An overhanging part 5 to an opening edge 4 is formed sideways on the opening edge 4 of a container where longitudinal directions X...  
JP4306507B2  
JP2009166078A
To provide a flange which has strength necessary to open and to mount an overcap, which has no risk that a hand and a mouth are cut by a flange edge and which is combinable with a filling and sealing machine for synthetic resin container...  
JP4305889B2  
JP2009160641A
To easily manufacture a narrow metal strip having the excellent shape accuracy by removing any angles or burrs formed during the slitting, and straightening any bend generated during the slit.A metal strip slit by a slitter is passed thr...  
JP2009160655A
To provide a press forming method capable of preventing occurrence of stretch-flange crack while using a conventional press forming apparatus in the case of press-forming a formed member with flange.This method is characterized by the sh...  
JP4295975B2  
JP2009148820A
To provide a manufacturing method of a component formed by roll forming from a high-strength steel sheet and an ultrahigh-strength steel sheet, which is used to prevent generation of delayed fracture or brittle fracture.The manufacturing...  

Matches 551 - 600 out of 6,740