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Patent Searching and Data


Matches 801 - 850 out of 5,249

Document Document Title
JP2015139783A
To properly prevent an elongation flange crack in response to a position of the flange crack to an outer surface predicted when forming a flange by bending to the outer surface.A press-molding method is provided for molding in an object ...  
JPWO2013129589A1
To suppress the generation of burrs at the tip of a crimped portion in a method for manufacturing a cylinder device in which an open end portion is crimped by a roller moving in the radial direction. Each roller 55 is moved in the radial...  
JP2015136728A
To provide a cam device of a complex press die which can smoothly and accurately perform flange bending work and piercing work.Flange bending work is performed by the cooperation of a sectional die 6 and a collapse punch 4 by driving a c...  
JP2015124862A
To provide a pipe branch connection easily and under a low cost as well under a high reliability in prevention of leakage.A process of manufacturing a pipe branch connection of this invention comprises the steps of forming an annular wal...  
JP5742544B2  
JP3198033U
To provide a processing apparatus capable of compactly combining a processing force applying member for applying a processing force to a work piece and a power generating member by narrowing the layout space. In a processing apparatus 1 ...  
JP5713309B2  
JP2015083311A
To perform bending with an outer peripheral flange without causing depression, which means an upper surface position of a through-hole falling beyond a specified position, relating to a structural member of a vehicle in which the through...  
JP2015083312A
To expand diameter of a flange on a lower end easily and at low cost in a vehicular structural member having a cylindrical flange on a through-hole and its inner periphery, by press working of a metal plate.A circumference of a through-h...  
JP2015081036A
To provide a frame member capable of increasing reinforcement strength and connection strength without causing the appearance of cracks and a wrinkles, and a method of manufacturing the same.When a frame member 8 is formed by applying be...  
JP5690950B2
An apparatus includes a backing surface that is operable to support a workpiece, and a mounting structure that is operable to move linearly between a first position and a second position. Movement from the first position to the second po...  
JP5688853B2  
JP2015054337A
To provide a pressing device capable of suppressing an increase in size and enhancing pressing force.A pressing device 1 comprises: a guide rail 2; a slide part 3 reciprocating back and forth along the guide rail 2; a pressing part 4 mov...  
JP2015051463A
To provide a cam mechanism whole weight of which is reduced and which is down-sized.A cam mechanism comprises: a driver unit which is pressed down by descent of a movable metal mold; a circular arc-shaped movement transmission member whi...  
JP2015047613A
To provide a flexure processing method for panel member which has preferable handle ability of the panel member and capable of simplifying equipment for integral molding even the three-dimensional panel member is subjected to integral mo...  
JP2015039716A
To provide a burring processing method and a burring processing apparatus that enable a pair of burring shaped parts extending outward each other to be effectively molded on first and second wall parts arranged oppositely.A burring proce...  
JP2015039705A
To weld and join a metal body strongly with a high degree of sealing to a hole of a metal plate, when welding and joining the metal body such as a cap attached so as to block the hole provided on the metal plate of mission oil pan materi...  
JP2015036147A
To provide a punch for burring processing capable of enlarging a processing range by suppressing crack generation without much cost increase, when performing burring processing of a press part for an automobile or the like, and to provid...  
JP5672308B2
Disclosed is a compact roller hemming device capable of performing a hemming process with respect to various works. Specifically disclosed is a roller hemming device (1) for hemming a work (W), which includes rotary shafts (11, 21) rotat...  
JP5668430B2  
JP2015024427A
To provide a processing method of metal material capable of effectively improving hole-expandability with a small number of process.A processing method of metal material 50 having a prepared hole comprises a prepared hole enlargement pro...  
JP5662648B2  
JP5660002B2  
JP5642741B2  
JP2014231061A
To provide a hemming bend method which finishes a bend process for bending a flange at an acute angle and a crush-bend process by a cope at one drop after forming the flange, is enabled in the automation of a hemming bend within a line o...  
JP5636846B2
A bossed disc-like member manufacturing method and apparatus with which it is possible to simply form a boss portion with a desired height. The method includes a level difference formation step that moves a second portion, which is posit...  
JP2014226687A
To provide a laser punch compound machine capable of removing a burr-like projection generated in a lower surface edge part along a thermal cutting processing part of a plate material by thermal cutting processing, by simple means withou...  
JP3194705U
To provide a burring mold capable of reducing work man-hours by reworking and improving productivity. This is a burring die 1 for molding a conical surface forming a countersunk surface of a countersunk screw into a screw insertion hole ...  
JP5608537B2  
JP5598434B2  
JP2014177996A
To enable screw fastening to be performed with predetermined fastening torque by applying burring processing to a thin sheet-metal material.In an approximately cylindrical burring part 11, a burring-processed fastening material 1 is fold...  
JP5596073B2  
JP2014168793A
To provide a chamfer correction apparatus for a cut end part of a pipe, capable of correcting only a usable pipe in a proper shape by chamfering the end part of the pipe, by discriminating the possibility of use of the obliquely cut pipe...  
JP5591134B2  
JP5586514B2  
JP5569609B1
A press forming method according to the present invention is a press forming method of pressing and forming a formed part 1 including: a top portion 5 having a projecting outer edge 3, a part of the projecting outer edge 3 being recessed...  
JP5570871B2  
JP5569597B2
Disclosed is a roller hemming device capable of maintaining performance to hem a work at low cost. Specifically disclosed is a roller hemming device (1) for performing preliminary bending to a work (W) placed on a bottom die (B) along a ...  
JP5564979B2  
JP5561445B2  
JP5561323B2  
JP5559633B2  
JP5555605B2  
JP5556899B2  
JP5545957B2  
JP5525566B2
A roller hemming device (1) includes a large diameter roller (11) having a large tapered surface (111) and a small diameter roller (12) having a small cylindrical surface (123). The small diameter roller (12) is coaxially disposed with t...  
JP2014108435A
To provide a press hemming method that enables improvement of machining accuracy, even while maintaining superiority in mass production with respect to the hemming using a hem tool.A press hemming method includes the steps of: forming a ...  
JP5517552B2  
JP5510533B1
To obtain a stretch flange forming method which fundamentally solves the problem of stretch flange cracking without lowering the degree of freedom of product shape and further has excellent shape accuracy of a top plate portion. The pres...  
JP2014512271A
The invention refers to a device (11) for flanging the end (13) of a metal tube (13) to achieve a circumferential surface extending outward at right angles from the tube (13), comprising a flanging tool (17) adapted to be attached to the...  

Matches 801 - 850 out of 5,249