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Patent Searching and Data


Matches 701 - 750 out of 6,785

Document Document Title
JP2008232441A
To provide a manufacturing method of a brake disk, and a brake disk with high practicality, capable of suppressing an increase of manufacturing cost while maintaining desired performance even when a chamfered surface is formed on a corne...  
JP4160426B2  
JP4158639B2  
JP4157955B2  
JP2008221261A
To provide a caulking technique capable of easily and inexpensively manufacturing an assembly without forming an flange or a complicated special shape on the middle part of a column-shaped body and achieving sufficient attachment strengt...  
JP4156090B2  
JP4147316B2  
JP2008200754A
To provide a hemming die which reduces sliding resistance in hemming work.A hemming die is provided with a fixed block 1 and a movable block 2 which is slidably provided with respect to the fixed block 1. An oil groove 8 is formed on eit...  
JP2008188621A
To provide a bending device with which the working accuracy of a preliminarily bending is improved and the quality of a product is uniformly raised in hemming work.This device is a bending device 1 and provided with a supporting table 10...  
JP2008188662A
To provide a hemming method and a hemming device capable of folding a hemming part in an adequate shape and preventing distortion or deformation of a work.The hemming device 10a comprises a movable hemming unit 20 for folding a flange 17...  
JP4132052B2  
JP4132255B2  
JP2008178916A
To provide press processing equipment which can carry out sharp bending 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 punch on the...  
JP2008173674A
To provide a method of inexpensively manufacturing a highly precise thin-walled ring such as a seal ring to be incorporated in a shell needle bearing, which is thin in wallthickness and is necessary to sufficiently ensure the dimensions ...  
JP4120119B2  
JP4116901B2  
JP2008143313A
To provide a hollow stabilizer in which positions of holes are not shifted even when the through-holes are formed and bent in fitting parts.Arm parts 2 are formed at both ends of the stabilizer and the fitting parts 5 are provided in tip...  
JP2008520913A  
JP4098393B2  
JP2008126275A
To provide a panel member fastening method capable of providing an edge having excellent appearance and obtaining the high fastening strength even when a panel member is constituted of a three-dimensional shape having many curvatures or ...  
JP2008126276A
To provide a panel member fastening method capable of providing an edge having excellent appearance and obtaining the high fastening strength even when a panel member is constituted of a three-dimensional shape having many curvatures in ...  
JP2008114241A
To provide a press forming method capable of preventing occurrence of cracks on a flange.This press forming method comprises: a first stage where the panel body 11 and a vertical wall part 21 approximately perpendicular to the panel body...  
JP2008100272A
To provide a roller hemming method capable of maintaining a contact state of the tip part of a flange to a workpiece, and a hemmed member.In a roller hemming method for folding a flange 13 erected from a workpiece 11 by pressing a workin...  
JP2008100267A
To provide a method of forming a panel member in which the forming of the panel member having an edge part which is high in appearance quality is made possible by suppressing the number of stages related to the forming of the panel membe...  
JP2008093692A
To provide a roller hemming method by which the generation of springback on a flange is prevented, solid materials can successfully be bitten on the workpiece and further the generation of deviation on the flange can be prevented.In the ...  
JP2008093689A
To provide a roller hemming device, wherein the positioning member can be miniaturized and the layout of members such as a roller is not restricted by the positioning member.The roller hemming device 10 is provided with a positioning pin...  
JP2008093691A
To provide a roller hemming method by which a hemming work can be successfully performed without being affected by the wear of the peripheral surface of a working roller.By the roller hemming method, a flange 13 which is erected on a wor...  
JP2008093684A
To provide a circular substrate and a method and an apparatus for working the circular substrate which achieve more reduction in shear droop on an end face without requiring a change in a die in that for punch presses.In this method, a g...  
JP4075736B2  
JP4076102B2  
JP2008073705A
To provide an apparatus and a method for bending a sheet metal product, by which apparatus and method, the structure of a die for bending the edge portion of a sheet metal product in cooperation with a punch can be simplified and a manuf...  
JP4062458B2  
JP2008043975A
To provide a forming die in which the pressure receiving area of a punch holder can be made larger and also the capacity of a fluid pressure chamber can be made larger.This die is provided with: a work supporting part 49 in the outer end...  
JP4051556B2  
JP2008036656A
To provide an apparatus and a method of forming a flange by which the flange free from edge cracking is formed in one step on a sheet-metal product such as a flat plate, a cylinder or an elliptic tube which are used for automotive parts ...  
JP2008023587A
To provide a hemming method where a working roller can be surely made to follow up to the curvature section of each corner part or the like in a workpiece, and further, which is inexpensive and has high flexibility, and to provide a hemm...  
JP2008023556A
To provide a caulked assembly which can be manufactured without providing a flange part at the middle part of a columnar body such as a shaft body and further can perform the caulking of a magnesium or magnesium alloy material having wor...  
JP4043435B2  
JP2008018444A
To provide a pressure device, wherein miniaturization is attained, the maintenance is easy, and the effect of the heat generated from a motor is reduced as much as possible.The pressure device comprises: an output shaft member 15 which i...  
JP2008018445A
To provide an apparatus for shaping a workpiece corner with which accurate working is performed on the workpiece by keeping the position of a forming roller to a die at the proper position.In the apparatus 3 for shaping the workpiece cor...  
JP2008012572A
To provide a roller hemming device with which the hemming work in a part having a large curvature is possible and which is inexpensive.The free bearing 62 of the roller hemming device 10 is provided with a steel spherical body 69 which r...  
JP2008006470A
To provide a die for bending apparatuses which is applicable to a bending apparatus such as a press brake and with which an acute angle bending work and collapsing work of a large and long metal plate can be performed with the same press...  
JP2008000753A
To newly provide a roll forming machine for duct seams which has a simple structure and with which the defective forming of the double seam can be surely prevented.In a roll forming machine for duct seams with which a double seam is form...  
JP4029371B2  
JP4027708B2  
JP4022472B2  
JP4025535B2  
JP2007319871A
To provide a method of manufacturing a seamless container and a die. The die 23 is disclosed which is used when bending a planar workpiece into a V-shape and provided with slopes 31A, 31B which are opposite to each other and constitute a...  
JP2007313521A
To facilitate position adjusting operation of a positioning tool for positioning a workpiece. When setting the workpiece W on a hemming die 1, positioning is performed by bringing an edge part F which is bent at about 90° toward the upp...  
JP4016788B2  

Matches 701 - 750 out of 6,785