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Patent Searching and Data


Matches 751 - 800 out of 4,238

Document Document Title
JP2010082634
To extend the service life of a roll die by reducing the load to a roll die and to reduce the energy consumption of rolling work by finding out an appropriate rolling pattern to a workpiece.Roll die forcing devices 17, 18 are forced in a...  
JP2010075968
To provide a flat die thread rolling machine which has high working accuracy of a material to be rolled, especially has small involute cumulative pitch errors by permitting accurate synchronous operation without losing the synchronizatio...  
JP2010075963
To provide a worm form-rolling device which can suppress faults caused by a phenomenon that a workpiece moves to the axial direction during form-rolling while achieving its simplification, and to provide a worm form-rolling method.Each o...  
JP2010075962
To achieve the improvement in the accuracy of a worm and the improvement in the efficiency of a forming operation by optimizing the number of rotations in a shaft during form-rolling.The outer circumferential part of each roll die 23 is ...  
JP2010069508
To provide an automatically phase-adjusting rolling machine with which the amount of phase correction is easily calibrated without necessitating the design change of the attaching position of a displacement sensor in accordance with the ...  
JP2010064101
To provide a flat die form rolling machine, which can prevent synchronous accuracy of a pair of flat dies arranged at a pair of sliding tables from going wrong and enables accurate synchronous operation even when used under a relatively ...  
JP2010064134
To provide a compact rolling mill apparatus whose structure is simple.The rolling mill apparatus 1 includes: a single main roll 60 rotatable around the axis thereof; and a plurality of mandrels 61L and 61R arranged at the outside in the ...  
JP2010052038
To provide a technology capable of forming a boss part thicker than a dehisced portion while utilizing the dehiscing work capable of preventing any breakage by suppressing the plastic deformation in a drawing apparatus and a drawing meth...  
JP2010052020
To provide a flat die rolling machine, in which, even under operational conditions of such a comparatively short cycle time as about 20 sec or below, the synchronous accuracy of a pair of flat dies arranged on a pair of sliding tables is...  
JP2010051981
To provide a link member for transmission chains, a link member that improves the yield of materials in manufacturing and that has high strength and high quality, to provide a method of manufacturing the same, and also to provide a trans...  
JP2010051987
To provide a method of manufacturing an inner face resin lining steel pipe having a rolled thread the lined inner face resin of which is flawless in the screw part.After heating an end part of the inner face resin lining steel pipe and t...  
JP2010043696
To provide a male screw member and a method for manufacturing the same, saving resources and reducing the weight without extremely reducing the screw strength.This male screw member 10, as its feature, includes one or more thickness redu...  
JP2010036235
To provide a manufacturing method of a rotor pulley for clutch which can manufacture a rotor pulley coping with a variety of customer needs by only pressing and form rolling, without cutting and welding.The method includes the steps of: ...  
JP2010036215
To provide a flange forming apparatus that forms a flange in the end of a rod material.A pulley manufacturing apparatus 10 includes a spindle 30 (supporting means), a forming mold 40, a rotary means 50, and a movement means 60. The spind...  
JP2010029893
To solve a problem that, when machining a metallic cylindrical body, deviations in wall-thickness, straightness, cylindricity and the like are easily generated in the axial direction of the cylindrical body, thereby to bottleneck automat...  
JP2010017737
To provide a mechanism for offsetting bend deflection of a tool shaft supported in cantilever, which is generated in accordance with clamping force generated in an internal gear rolling machine having the tool shaft.Stress and positional...  
JP2010014226
To provide a rolling bolt of a double thread configuration with improved durability, mechanical strength, and productivity.In the rolling bolt of the double thread configuration, a coarse thread of a standard first pitch, and a fine thre...  
JP2010012499
To provide a screw form rolling die capable of rolling a rolled bolt having a high-quality screw structure, preventing wobbling vibration in rolling and deterioration in service life and having improved durability.The screw form rolling ...  
JP2010005654
To provide a form rolling die capable of improving durability by suppressing occurrence of chipping or loss due to a compound layer or degradation of toughness when enhancing wear resistance by hardening the form-rolled surface of the fo...  
JP2009299743
To provide a manufacturing method of intermeshing shaft which can improve working efficiency when intermeshing an intermeshing member of the intermeshing shaft and an intermeshing member of the other element.A sun screw 12 as an intermes...  
JP2009297768
To manufacture a ring product excellent in strength by setting so as to position the tip end part of a fiber flow of an up-set working along the position of annular recessed groove, formed on the internal diameter surface of the ringed p...  
JP2009291798
To provide a method for manufacturing a deformed bar material, capable of producing a deformed bar material having a thick-plate part and a thin-plate part of which the width directional lengths and positions are stable in a longitudinal...  
JP2009285730
To provide a method for producing a workpiece having a concave or cone-like inner surface from a preform.In the method for finishing a workpiece, a substantially cylindrical preform (8) is formed by at least one pressure roller (7) into ...  
JP2009279627
To provide a method for manufacturing inner and outer rings of a rolling bearing capable of executing the rolling formation with a large diameter widening ratio without causing any crack in a ring-shaped material, and consistently formin...  
JP2009274128
To consistently form a locking projecting bar of the high quality on various pipe bodies irrespective of the diameter size of the pipe bodies and irrespective of the wall thickness of the pipe bodies when forming the locking projecting b...  
JP2009275619
To provide a processing device for a micro-recess part capable of eliminating the influence of centrifugal force even if the offset amount of a form roller with respect to a tool holder or the rotation speed of the tool holder changes.Th...  
JP2009269052
To provide a method for manufacturing a narrow-mouthed shell, which makes it easy to make a process design by inhibiting radial expansion of a narrow-mouthed part, which occurs due to radial expansion of a cylindrical shell part, when ma...  
JP2009257482
To provide a rolling tool capable of accurately and economically manufacturing a screw thread in a shape of capable of exhibiting a locking function.A rolling die 1 is provided with a second die 20 having a plurality of fitting part work...  
JP2009241131
To prevent the occurrence of engagement error without needing a post-working, such as cutting-work, etc., when a ring-gear in the outer-circumferential part is formed with rolling-formation in order to reduce the manufacturing cost, etc....  
JP2009242837
To provide a copper alloy cast billet with which the productivity is further improved by reducing a tool wearing in tube making while holding the processing facility in the production of a copper alloy tube and the productivity; and the ...  
JP2009241106
To achieve technology capable of more suppressing deformation of a material than a conventional technology even when increasing processing speed of a clutch part and making improvement of production efficiency and improvement of processi...  
JP2009241130
To prevent the generation of a projecting part, such as burr, when the outer circumferential part of a disk-like blank is formed with increased thickness.When a roller 34c for increasing the thickness is approached up to the die-closing ...  
JP2009241107
To provide a technology can facilitate the trimming and increase the rigidity of an opening end after forming a reinforcing part on the opening end of a clutch component.The forming method of a cylindrical clutch component with a spline ...  
JP2009233732
To provide a method of rolling forming a ring-shaped product including a part having complicated shape of an axial cross section and a simple part, by which the occurrence of a burr flaw due to a slip on the surface of the ring-shaped pr...  
JP2009233722
To provide a method for manufacturing a helical gear by which the helical gear can precisely be manufactured.In the method for manufacturing the gear, including a gear-cutting process for forming a roughly-processed gear by applying the ...  
JP2009233705
To restrain the generation of an imperfect screw part and form-rolling-over to the minimum limit, when a male-screw is manufactured by form-rolling.Firstly, in the first process, a small diameter part 95b and a chamfer part 95a connected...  
JP2009214152
To provide a flat die for roll-forming with which even in the case of finely tilting the positional relation of one pair of the flat dies, a strain caused by the elastic-returning of the flat dies for roll-forming is prevented without sa...  
JP2009214880
To eliminate a preparatory process for forming a hollow section and facilitate manufacture of a wheel, in a method of manufacturing a vehicular wheel made of a light alloy and having an annular hollow section on an outer rim.The manufact...  
JP2009214153
To provide a thread rolling apparatus and a thread rolling method adequately ready for the change of the number of revolutions of a roll die to the load fluctuation of the roll die on a thread-rolled workpiece, and capable of enhancing t...  
JP2009208119
To suppress a screw thread of a female screw and formed tooth provided in a screwing part from being deformed in an early stage of forming the female screw when the female screw is formed on the inner peripheral surface of a lower hole b...  
JP2009208135
To provide a method for manufacturing a semifinished product for a ring-shaped holder of a needle roller bearing, which can realize a high dimensional accuracy in cold rolling to eliminate insufficient filling of a steel material into a ...  
JP2009202221
To provide a flat die for rolling working, with which strain due to elastic return of the flat-die for rolling working in a biting inclined tooth part is prevented and tooth-shape working precision including highly precise accumulated pi...  
JP2009195930
To provide an infeed form rolling die with which working of a screw shaft in which the balls are prevented from falling off is easily performed and the screw shaft of a ball screw mechanism which is formed with the die.The balls 3 can pa...  
JP2009197899
To provide a double-row angular bearing having an improved rolling life and reduced costs.The double-row angular bearing comprises inner rings 24A, 24B having inside rolling surfaces 28, 29 on the outer diameter faces, respectively, an o...  
JP2009198004
To provide a welding stud suitable for an automatic and semiautomatic screw fastening process, and highly reliably guaranteeing correct screwing-in of a thread.This welding stud 1 includes a head designed as a welding end part 2, and a s...  
JP2009195963
To make it possible to easily evaluate a fine recessed part which is plastically formed in a workpiece, in a short period of time.This invention relates to a method for evaluating the workpiece, in which the quality of the fine recessed ...  
JP2009195965
To provide an apparatus for working fine recessed parts, by which fine recessed parts can efficiently be formed in a short time while avoiding the non-working zone, with respect to a workpiece having non-working zone at a part on an oute...  
JP2009183956
To surely make matching to a pitch between rolling dies for a short time.A thread rolling machine is rolled by abutting the plurality of rolling dies 20a, 20b, 20c to a rolling blank 1. The thread rolling machine includes: a holding part...  
JP2009180268
To provide a rolling bearing for a pump for preventing pollution of cooling water, and improving durability.An inner ring 8 and an outer ring 7 are formed of a steel pipe material having rust preventive capacity by cold rolling processin...  
JP2009180360
To provide a tapered screw member for securing the area of the end face of a tapered portion for improved sealing performance while holding the strength of the end of the tapered portion, and to provide its manufacturing method for easil...  

Matches 751 - 800 out of 4,238