| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 029893000 | Gear making | 71 |
| 20100251549 | METHOD OF MANUFACTURING METAL MEMBER WITH PLURALITY OF PROJECTIONS - Projections of a bevel gear or a vibrating body are formed by bending a metal-made plate member having a plurality of projections so as to direct them in the same direction and make their projecting direction include a component of out-of-plane direction and subsequently applying a load to the bent plate member to crush the projections so as to reduce the height thereof and increase the plate thickness. | 10-07-2010 |
| 20130067745 | PINION DISASSEMBLY TOOL AND METHOD - A pinion disassembly tool is configured to remove a yoke or a flange member and a pinion fastener from a splined pinion shaft in a pinion assembly. The tool includes a yoke holding plate with a central aperture sized to receive a socket wrench during removal of the pinion fastener. The yoke holding plate includes fastener apertures for connection to the yoke and at least one non-circular aperture for receiving a breaker bar during removal of the pinion fastener. The tool also includes a drive plate with a threaded aperture, the drive plate inserted through the central aperture of the yoke holding plate after removal of the pinion fastener. The tool also includes a drive bolt engaged with the threaded aperture and configured to force the drive plate and the yoke holding plate to pull the yoke from the splined pinion shaft as the drive bolt is rotated. | 03-21-2013 |
| 20150068039 | METHOD OF MANUFACTURING A GEAR - The problem of the present invention involves providing a gear that has high tooth-root bending strength and for which there is no chipping of the tips of the teeth. Accordingly, the surface of the gear is carburized and the gear is strengthened by imparting residual stress, with the residual stress in the region with a surface depth of 5 μm to 20 μm being −1000 MPa or less, and the residual stress in the region with a surface depth of 50 μm to 150 μm being 1000 MPa or greater. | 03-12-2015 |
| 029893100 | Assembling of gear into force transmitting device | 19 |
| 20080222892 | Method of Producing Mechanism For Converting Rotational Motion Into Linear Motion - A method for fabricating a rotational-to-linear motion conversion mechanism which can avoid a planetary shaft from being tilted with respect to a sun shaft when the conversion mechanism is assembled. The method includes fabricating a subassembly with the planetary shaft being held in parallel to the sun shaft. The subassembly includes the sun shaft having a first and second sun gear at its opposing ends and a male thread at its center, the planetary shaft having a first planetary gear at its one end and a male thread at its center, a ring shaft having a female thread, and a first and second ring gear. The method also includes mating the second planetary gear with the second sun gear and the second ring gear while the second planetary gear is being fitted over the outer circumferential surface of the other end of the planetary shaft in the subassembly. | 09-18-2008 |
| 20090013533 | Differential mechanism assembly - A method for manufacturing a differential assembly, comprising producing a first case portion by cold flow forming a first workpiece on a first mandrel, producing a second case portion by cold flow forming a second workpiece on a second mandrel, installing in a cavity formed in the first case portion a spider assembly including radially extending spider pins located at an axial position, pinions supported for rotation on the spider assembly, and a first side gear engaged with the pinions, installing in a cavity formed in the second case portion a second side gear engaged with the pinions, and securing the second case portion to the first case portion. | 01-15-2009 |
| 20090090007 | Method of manufacturing gear from metal sheet and the gear manufactured by the method - A gear is manufactured in a half blanking stage, a punching stage and a separating stage. In the half blanking stage, half blanking is performed for a columnar portion of a metal sheet. A part of an outer circumferential surface of the blank is disconnected from the other portion of the sheet, while the other part of the outer circumferential surface of the blank is connected with the other portion of the sheet. In the punching stage, an inner portion of the blank is punched in a punching direction to form teeth on an inner circumferential surface of the blank. In the separating stage, the blank is separated from the other portion of the sheet as a gear toward a separation direction opposite to the punching direction by disconnecting the other part of the outer circumferential surface of the blank from the other portion of the sheet. | 04-09-2009 |
| 20090293278 | METHOD OF MAKING INTEGRAL SUN GEAR COUPLING - A method of constructing an integral coupling system containing a sun gear is disclosed. An integral sun gear is provided that has a sun gear component and a connection shaft. A first straight flat inner edge is machined on a first diaphragm to use as a datum point, and then the straight flat edge is fixtured. A tapered outer edge is machined on the first diaphragm, and the first diaphragm is welded to the integral sun gear. The flat inner edge is generally perpendicular to a central axis of the connection shaft. | 12-03-2009 |
| 20100154217 | OIL BAFFLE FOR GAS TURBINE FAN DRIVE GEAR SYSTEM - A gas turbine engine includes an epicyclic gear train that drives a turbo fan. The epicyclic gear train employs a one-piece carrier in which the spaced side walls are interconnected with circumferentially spaced apart mounts to form a unitary structure. Baffles are secured to the carrier near the mounts and provide lubrication passages that spray oil onto the sun gear and/or intermediate gears arranged between the baffles. The baffles can be constructed from a different material than the carrier since the baffles are not structural components in the gear train. | 06-24-2010 |
| 20100281692 | AXLE ASSEMBLY METHOD - A method that includes positioning a differential assembly between a pair of journals in a differential housing, threading hollow adjusters into the journals, installing a retaining member over each of the hollow adjusters such that the retainer engages a non-circular feature on a respective one of the hollow adjusters, and pressing each of the retaining members into a counterbore formed on an assocated one of the journals such that the retaining members engage the differential housing in via an interference fit to inhibit relative rotation between the retaining members and the differential housing. | 11-11-2010 |
| 20110296690 | METHOD FOR THE MOUNTING, IN THE CORRECT RELATIVE ANGULAR POSITION, OF A PAIR OF ROTARY DRUMS OF A DOUBLE-DRUM SEQUENTIAL GEAR CONTROL DEVICE FOR A MOTOR-VEHICLE GEARBOX - A method of mounting a first drum and a second drum of a double-drum sequential gear control device for a motor-vehicle gearbox in a predefined relative angular position is provided. In a mounted condition, the first drum is rotatably arranged about a first rotation axis and the second drum is rotatably arranged about a second rotation axis parallel to but not coincident with the first rotation axis. The method includes forming a first positioning hole in a first position of the first drum and forming a second positioning hole in a second position of the second drum. The method also includes arranging the first drum and the second drum in the predefined relative angular position and locking the first drum and the second drum in the predefined relative angular position. The locking includes engaging the first and second positioning holes with a locking device. The method further includes disengaging the locking device from the first and second positioning holes of the first and second drums once mounting of the gear control device is completed. | 12-08-2011 |
| 20120023747 | METHODS FOR CLUSTER GEAR TIMING AND MANUFACTURING - A method of manufacturing a gear cluster from a first gear body and a second gear body comprises producing a first set of gear teeth on the first gear body such that each tooth on the first set of gear teeth has a first pitch point. The second gear body is axially aligned with the first gear body. A timing position for a second set of gear teeth on the second gear body is determined by dimensioning from the first set of gear teeth. A second set of gear teeth on the second gear body is produced based on the timing position and each tooth on the second set of gear teeth has a second pitch point. The gear cluster is inspected for timing position by measuring a reference dimension between the first pitch point and the second pitch point. | 02-02-2012 |
| 20120066906 | ASSEMBLY FACILITATION APPARATUS AND METHOD - An assembly apparatus that includes a frame and a load plate operatively connected to the frame. The load plate is configured to support a workpiece and is selectively extendable from a first position in which at least a portion of the load plate is positioned over the frame, to a second position in which the load plate is extended from the frame such that the workpiece is transferable from the load plate to a sub-assembly. | 03-22-2012 |
| 20120124837 | METHOD OF ASSEMBLING A DIFFERENTIAL GEARSET - A method of assembling a differential gear set includes installing a first bushing into a carrier, installing a second bushing into the carrier, and inserting a first planet gear into an interior portion of the carrier. The first planet gear includes a first planet gear shaft. A second planet gear including a second planet gear shaft is inserted into the interior portion of the carrier. The first and second planet gear shafts are installed into the first and second bushings. A third planet gear including a third planet gear shaft is inserted into the interior portion of the carrier and a fourth plant gear including a fourth planet gear shaft is inserted into the interior portion of the housing. The third and fourth planet gear shafts are passed into corresponding bushing receptors in the carrier. Third and fourth bushings are installed on the third and fourth planet gear shafts. | 05-24-2012 |
| 20120233860 | METHOD OF MANUFACTURING MOTORIZED POWER STEERING DEVICE - Disclosed is a method of manufacturing a motorized power steering device wherein auxiliary torque generated by an electric motor ( | 09-20-2012 |
| 20120272525 | METHOD OF ASSEMBLING A STACKED PLANETARY GEAR SET - A method for manufacturing a carrier assembly of a stacked planetary gear set is provided. The method includes forming the inner and outer spiders and attaching the spiders to a back plate or to each other to form the carrier assembly. One or both of the inner and outer carrier spiders are formed from powdered metal, by precision casting, and/or by stamping. The stacked planetary gear set may be axially aligned or axially offset. | 11-01-2012 |
| 20130036609 | TIMING METHOD FOR A HELICAL GEAR ASSEMBLY - A method for timing a stage 1 pinion gear and a stage 2 helical gear includes providing a stage 1 pinion gear including a pinion apex and a stage 2 helical gear including a plurality of stage 2 helical teeth, a center bore, and a stage 2 plane. The method also includes providing a spanner wrench and a pinion stop. The method also includes placing the spanner wrench on the stage 2 helical gear, inserting a shaft of the stage 1 pinion gear into the center bore such that the spanner wrench is positioned around the stage 1 pinion gear, securing the pinion stop to the stage 2 helical gear, and rotating the spanner wrench to engage the pinion stop with the spanner wrench. | 02-14-2013 |
| 20130091708 | METHODS OF FABRICATING COMBINATION GEAR FOR STACKED PLANETARY GEARSET - Three methods of fabricating an intermediate, center or combination gear for a stacked planetary gear assembly are presented. A first method comprehends forming male splines on the outer surface of the inner (ring) gear and female splines on the inner surface of the outer (sun) gear. The gears are then heat treated and assembled. A second method comprehends broaching internal splines in the outer (sun) gear as well as end milling, broaching or polygon turning face splines on one end of the outer gear and an opposing, adjacent end of the inner (ring) gear. A third method includes fabricating and heat treating the inner and outer gears. A small area of the hardened case is then removed by, for example, machining. The gears are mated, heated rapidly by a pulse of electric current and upset in the heated region. | 04-18-2013 |
| 20130291384 | Method of Forming a Sprocket - A method of forming a sprocket comprising forming a sprocket member having a tooth profile, forming grooves in the sprocket member base, installing a plurality of sprocket members in a mandrel thereby forming a build, applying an elastomer member between adjacent sprocket members, wrapping a tensile member about the sprocket members and elastomer members, curing the build, removing the build from the mandrel, and inverting the build and joining the build to a rigid core. | 11-07-2013 |
| 20140130356 | Air Turbine Starter Matched Set Gear Cage Alignment Feature - A gear cage assembly configured to support a plurality of planet gear in an air turbine starter is provided including a main plate and a back plate. The main plate includes a plurality of legs that extend from a first surface. A pin protrudes from a one of the plurality of legs. A plurality of shallow openings formed in the first surface extends over only a portion of a depth of the main plate. The back plate includes a plurality of bearing holes substantially identical to the plurality of shallow openings. A biasing mechanism and at least one alignment feature protrude from the back plate. The at least one alignment feature and the biasing mechanism are configured to contact at least one of the plurality of legs. A bushing mounted within the back plate is configured to receive the pin. | 05-15-2014 |
| 20150020387 | Method for assembling a helically geared first sprocket and a second helically geared sprocket to form a transmission - A method for assembling a helically geared first sprocket, particularly a worm gear and a second sprocket arranged on an axis, particularly a worm, to form a transmission, particularly a worm drive, in which the first sprocket is positioned coaxially in reference to an axis of assembly of the first sprocket, aligned at a 90° position in reference to the axis via an assembly device. | 01-22-2015 |
| 20150047195 | Method of Assembly for Hydromechanical Transmission - A method of assembly | 02-19-2015 |
| 20160138422 | GEAR CARRIER FLEX MOUNT LUBRICATION - An exemplary method of lubricating a turbomachine interface includes, among other things, securing a carrier relative to a torque frame using a flexure pin, and lubricating an interface of the flexure pin using a lubricant that has moved through a lubricant passage in the carrier and a lubricant passage in the flexure pin. | 05-19-2016 |
| 029893200 | Gear mounting | 6 |
| 20130263452 | BEVELOID PLANETARY GEAR DRIVE FOR TRANSFER CASE OR TRANSMISSION - A method of assembling a planetary gearset includes die-forming plurality of circumferentially spaced apart teeth on a sun gear, a planet gear an a ring gear. Each tooth includes a pair of tooth flanks in a final net form for engagement with mating gear teeth. The sun gear teeth have a conical shape to allow a first die to linearly move relative to a second die after the gear teeth are die-formed. The planet gears are mounted on a carrier. The sun gear and the planet gear are oriented such that the conical shapes of the respective gear teeth taper in opposite directions from one another and the planet gear teeth meshingly engage with both the ring gear teeth and the sun gear teeth. | 10-10-2013 |
| 20140165403 | Planetary Gear Alignment and Indexing Method and Associated Tool - A method is disclosed for assembly of a planetary gear drive, wherein the gear drive includes a ring gear, a sun gear, and a plurality of planet gears engaged with the ring gear and sun gear. The method includes mounting the planet gears within a carrier, with the planet gears freely rotatable relative to the carrier. A gear alignment tool is inserted through a bore in a front face of the carrier and is used to index the planet gears into an aligned rotational position for proper subsequent engagement with the ring gear and sun gear. | 06-19-2014 |
| 20140345138 | METHOD OF PRODUCING MECHANISM FOR CONVERTING ROTATIONAL MOTION TO LINEAR MOTION AND JIG FOR EXECUTING THE METHOD - In this manufacturing method, when a plurality of planetary shaft main bodies are arranged at even intervals around a sun shaft main body, a state in which a sun threaded section is engaged with each of planetary threaded sections is referred to as a regular assembled state, and an assembly formed by a combination of the sun shaft main body and the planetary shaft main body in the regular assembled state is referred to as a first assembly. The first assembly is assembled in a state in which the relationship of the planetary shaft main body and the sun shaft main body is in correspondence with the relationship of the planetary shaft main body and the sun shaft main body in the regular assembled state. | 11-27-2014 |
| 20150059180 | Method of Making a Bevel Gear System - A method of making a bevel gear system. The method may include selecting a member of the first set of side gears and a member of the second set of side gears corresponding to a desired gear ratio. The selected first side gear may have a different number of teeth than a selected second side gear. | 03-05-2015 |
| 20150075002 | WHEEL SPINDLE DRIVE ELEMENT - A wheel spindle drive element for a wheel disconnect system. The wheel spindle assembling onto an outer diameter of a spindle, displacing material to form a joint with high torque transmission characteristics. | 03-19-2015 |
| 20160018762 | Process for Installing Original Drive Gear on a Laser Printer Toner Cartridge Drum - A method is provided for recycling a previously-used gear assembly that includes a portion having pair of slots. The method includes obtaining a previously-used gear assembly that has been removed from a first photosensitive drum-cylinder, inserting the portion of the gear assembly into a second drum-cylinder; positioning the portion of the gear assembly and the second drum-cylinder between a pair of moveable arms, and moving the moveable arms toward the portion of the gear assembly to couple the gear assembly to the second drum-cylinder by crimping the second drum-cylinder into the pair of slots. | 01-21-2016 |
| 029893300 | Gear shaping | 43 |
| 20080209730 | Surface-Densified Toothed Section From A Sintered Material And Having Special Tolerances - The invention relates to a method for producing a toothed section from a densified sintered material, whereas a predensified tooth preform is densified by at least 0.05 mm from its surface at least in one area by means of iteratively determined data to yield its final form, and a final form quality in a range of at least f | 09-04-2008 |
| 20090019697 | Method for low lot gear manufacturing - A method of fabricating a gear is disclosed. The method may include loading a donut blank onto a pallet through a bore in the donut bank. The method may further include loading the pallet and donut blank onto a plurality of different machines and performing a plurality of different machining processes on the donut blank to fabricate a gear. | 01-22-2009 |
| 20090265936 | PROCESS FOR MANUFACTURING TOOTHED SPROCKETS FOR REWINDING DEVICES OF SAFETY BELTS - A process for manufacturing toothed sprockets, comprising the steps of pressure die-casting a molten metal alloy into a runner ( | 10-29-2009 |
| 20090288295 | Ring Gear, Internal Combustion Engine-Starting Torque-Transmission Mechanism, and Method of Manufacturing Ring Gear - A ring gear is formed by joining a race side-region formed body, a gear side-region formed body and an intermediate region formed body. Accordingly, it is possible to perform processing of an inner race portion of the race side-region formed body with none of the gear side-region formed body and the intermediate region formed body present. By causing the gear side-region formed body and the intermediate region formed body to absorb changes in design depending on the type of internal combustion engine, it is possible to standardize the size and the shape of the race side-region formed body for various engine types. Because the inner race portion, as well as a disposition surface and a contact surface for the seal rings are formed on the same race side-region formed body, it is possible to finish the surfaces with precise positional relationship. | 11-26-2009 |
| 20100242283 | METHOD FOR FINISHING A GEAR SURFACE - A method for manufacturing a gear having a plurality of gear teeth includes the steps of: determining a desired finished gear characteristic, determining a reference feature on the gear to establish an origin on the gear, determining an unfinished dimension of a surface of at least one of the plurality of gear teeth relative to the origin, estimating a desired stock removal that will achieve the desired finished gear characteristic, finishing the gear using a finishing tool, determining a finished dimension of the surface of the at least one of the plurality of gear teeth relative to the origin, determining actual stock removal by comparing the unfinished dimension with the finished dimension, and comparing the actual stock removal with the desired stock removal. | 09-30-2010 |
| 20120317812 | RANDOMIZED CHAIN SPROCKET AND METHOD FOR MAKING A SPROCKET - A randomized chain sprocket has a set of four tooth gaps having three different tooth gap radial locations, two different link angles, and a chain with constant link pitch. | 12-20-2012 |
| 20130097865 | PROCESSING METHOD AND PROCESSING DEVICE FOR CONCAVE-CONVEX GEAR - A trajectory extracting step of extracting a relative movement trajectory of each convex tooth pin of a mating gear with respect to a concave-convex gear at the time when torque is transmitted between the mating gear (fixed shaft) and the concave-convex gear (nutation gear) and a machining step of, when the concave-convex gear is machined on a concave tooth forming face of a disc-shaped workpiece on which the concave teeth have not been machined, moving at least one of the disc-shaped workpiece and a working tool such that a relative movement trajectory of the working tool with respect to the disc-shaped workpiece coincides with the relative movement trajectory of each convex tooth pin with respect to the concave-convex gear, extracted in the trajectory extracting step, are included. | 04-25-2013 |
| 20130199044 | Method of Forming a Sprocket - A method of forming a sprocket comprising forming a circular blank having a plane, cutting a plurality of radially extending slots about the outer circumference of the blank thereby forming a plurality of adjacent tabs, bending the tabs 90 degrees to the blank plane, and forming each tab into a tooth form with a groove disposed between adjacent teeth. | 08-08-2013 |
| 20150059181 | DRIVE GEAR FOR EXTENDED DRIVE SHAFT - A cartridge drive gear assembly for holding a drum coupling includes a drive gear having an outer surface and an inner surface, the inner surface including inner projections which extend into the interior of the drive gear and includes at least two voids disposed on opposing sides of the inner projections, and at least one slot disposed in the inner surface | 03-05-2015 |
| 20150316888 | DRIVE GEAR FOR EXTENDED DRIVE SHAFT - A cartridge drive gear assembly for holding a drum coupling includes a drive gear having an outer surface and an inner surface, the inner surface including inner projections which extend into the interior of the drive gear and includes at least two voids disposed on opposing sides of the inner projections, and at least one slot disposed in the inner surface | 11-05-2015 |
| 029893310 | Worm gear | 2 |
| 20090000120 | Worm gear unit and method of producing same - By finding a range of an allowable error of maximum meshing position of a worm shaft in an axial direction relative to a worm wheel, that is higher than that of a worm shaft of a conventional worm gear unit, a worm gear unit of the present invention is provided. | 01-01-2009 |
| 20090217528 | METHOD AND APPARATUS FOR WORKING A SCREW ROTOR, END MILL FOR WORKING , AND METHOD OF MANUFACTURING A SCREW COMPRESSOR - A method of improving working of grooves of a screw rotor, in particular, working of grooves side in working efficiency, a working apparatus, a working tool, and a method of manufacturing a screw compressor are provided. A method of controlling rotation of a work and turning of a tool at a time to form a screw tooth space based on a five-axis NC machine, and a special end mill having a cutting edge of a short length and a neck portion provided between the cutting edge and a shank portion to be made thin is used to perform working in grooves side finish working process. | 09-03-2009 |
| 029893320 | Roll forming | 7 |
| 20080282544 | Powder metal internal gear rolling process - A method for forming an internal gear is provided comprising providing a powder metal preform workpiece, supporting the workpiece about its periphery, and roll forming said workpiece to produce a set of densified gear teeth of a predefined dimension. | 11-20-2008 |
| 20100024217 | Method For Manufacturing A Toothed Disc and The Toothed Disc Manufactured Thereby - A novel method of manufacturing a toothed disc is taught wherein the teeth can be cold formed to a relatively high set of tolerances in a relatively time-efficient manner. A cold-formed disc blank with an annular thickened ring about its periphery is forced through a set of tooth forming rollers which engage the annular thickened ring. As the blank is forced through the set of rollers, the rollers cold forming tooth structures in the annular ring. In some circumstances, the tooth structure can be a final desired tooth profile and in other circumstances, the disc blank may be forced through two or more different sets of tooth forming rollers, each set of tooth forming rollers contributing to the forming of the final, desired tooth profile. | 02-04-2010 |
| 20110232092 | METHOD AND APPARATUS FOR BACKING THE INSDE TEETH OF A SLIDING SLEEVE PRODUCED BY WAY OF POWDER METALLURGY FOR A MANUAL TRANSMISSION - A method for backing the inside teeth ( | 09-29-2011 |
| 20110302783 | Form Rolling Method for Involute Gear - A form rolling method for an involute gear, which includes a work piece including a cylindrical outer peripheral surface having a predetermined radius, and a round die with an involute tooth profile including an addendum pitch corresponding to a pitch defined by dividing a length of an outer circumference of the work piece by number of teeth of the involute gear. The round die is pressed to the work piece while rotating when form rolling the involuete gear. | 12-15-2011 |
| 20120297623 | ROLLING TOOL, APPARATUS AND METHOD FOR THE PRODUCTION OF CROWNED TEETH, AND GEAR - The invention relates to a rolling tool ( | 11-29-2012 |
| 20140245610 | THREAD ROLLING METHOD FOR GEAR USING CYLINDRICAL DIES - A thread rolling method for a gear using cylindrical capable of achieving a proper tooth profile by the use of cylindrical dies in which no slippage occur during the processing is provided. The method includes the steps of placing a work having a cylindrical outer surface to be supported to a support to be freely rotatable about a rotation axis of the cylindrical outer surface, placing a pair of the cylindrical dies each rotatable about an axis parallel to the rotation axis to face each other across the work, thrusting the pair of cylindrical dies against the work, the cylindrical dies being synchronized with each other in rotating speed and thrusting amount via a drive mechanism, and determining an outer diameter of the work, when rotary movement of the cylindrical dies and the work rotated together is shifted from friction gear movement based on thrusting forces exerted from both the cylindrical dies and the work to gear movement based on the engagement between the work and the cylindrical dies at tooth grooves formed in the work by thrusting the cylindrical dies against the work, in which a dimension obtained by dividing an outer circumferential dimension of a dedendum circle of the tooth grooves by the number of teeth to be formed is equal to an addendum circular pitch of each of the cylindrical dies. | 09-04-2014 |
| 20160193648 | METHOD FOR CHAMFERING AND POLISHING TOOTHED WORKPIECES | 07-07-2016 |
| 029893330 | Punching or stamping | 3 |
| 20100083502 | METHOD OF FORMING A ONE PIECE COMPONENT - A method for forming a component that transmits torque in an automatic transmission includes forming a workpiece with a hub concentric with and extending along an axis and forming the workpiece with a disc that is integral with the hub and extends radially outward from the hub. A hollow perform cylinder is formed integrally with the disc, located at a radial end of the disc distant from the hub, concentric with the axis, and includes an inner surface and an outer surface. A hollow perform cylinder is flow-formed using a flow-forming mandrel located within the cylinder and having an outer surface formed with gear teeth such that the inner surface of the cylinder conforms to at least a portion of the gear teeth on the flow-forming mandrel. | 04-08-2010 |
| 20110192028 | METHOD AND DEVICE FOR INFLUENCING THE CUT AND FUNCTIONAL FACE ON FINE-BLANKED FINISHED PARTS - The invention relates to a method and a device for influencing the cut and functional face, especially the reduction, during fine blanking of a finished part, for example, a gear, cut out of a metal strip, wherein the metal strip is clamped during closure between an upper part at least comprising a cutting punch and guide plate for the cutting punch and a lower part at least comprising a die plate and ejector and in a first working stage a blank with reduction is cut out of the metal strip. | 08-11-2011 |
| 20120186085 | RACK AND MANUFACTURING METHOD THEREOF - To sufficiently secure the width dimension, strength and rigidity of the rack teeth | 07-26-2012 |
| 029893340 | Die-press shaping | 11 |
| 20080201950 | Manufacture of a Shaft/Hub Connection - The present invention relates to a method for manufacturing a toothing on a component | 08-28-2008 |
| 20100083503 | SERVO MOTOR FOR ACTUATING A MANDREL WHILE EXTRUDING HELICAL TEETH - An apparatus for extruding helical teeth in a gear blank includes a press including a die plate and a die base, the die plate being movable along an axis relative to the die base, the die base supporting the gear blank. A mandrel, aligned with the axis and moveable with the die plate along the axis, includes a surface that includes helical die teeth. A servo motor drives the mandrel in rotation about the axis to the required helix angle as the mandrel moves axially relative to the gear blank. | 04-08-2010 |
| 20100126020 | METHOD FOR PRODUCING INTERNAL AND EXTERNAL TOOTHINGS ON THIN-WALLED, CYLINDRICAL HOLLOW PARTS - The invention relates to a method for cold-form profiling cylindrical, thin-walled hollow parts ( | 05-27-2010 |
| 20100299925 | METHOD FOR FORMING A GEAR - A method for forming a gear, including the following steps: first obtaining a billet, then carrying out a backward extrusion process of the billet to form a forged billet with a blind hole by using a mold, and the forged billet has an appropriate axial length and an appropriate radial length. Then, a precise piercing process is carried out to remove the solid billet portion remained in the blind hole of the forged billet to form a through hole. Then, trimming of the through hole is carried out to form a high-precision inner hole, and positioning is carried out based on the high-precision inner hole to implement a pressing process of an outer tooth shape of the forged billet to form the gear. | 12-02-2010 |
| 20120102739 | Hollow Rack End Diameter Reducing Method - The one end side portion is nipped by a jig including a jig member having a pair of convex portions which are to be fitted to a depressions in contact with a tooth side face and a inclined portion and positioning a bar and a jig member which is to be clamped/opened with respect to the jig member. A die having an inside diameter smaller than the diameter of the outer periphery is pressed onto the outer periphery of the end portion of the cylindrical end side portion projected from the jig up to a press-in depth determined preliminarily based on the rack, so as to reduce the diameter of the end portion. | 05-03-2012 |
| 20120240405 | MANUFACTURING METHOD FOR TOOTHED PART AND MANUFACTURING DEVICE FOR TOOTHED PART - A manufacturing method for a toothed part including a bottom surface portion and a side wall portion provided to extend upright from an outer peripheral end portion of the bottom surface portion, the side wall portion being fanned with teeth. The manufacturing method includes a half drawing process of performing draw shaping on a material having a disk shape to form the bottom surface portion and the side wall portion, an inside diameter of which becomes larger in a direction away from the bottom surface portion; and a tooth shaping process of forming the teeth in the side wall portion. | 09-27-2012 |
| 20130318792 | MANUFACTURING METHOD FOR TOOTHED MEMBER, MANUFACTURING DEVICE FOR TOOTHED MEMBER, AND TOOTHED MEMBER - A manufacturing method for a toothed member includes a thickened tooth shaping process in which a toothed shape is formed on a side wall portion while making a thickness of the side wall portion larger than a thickness of a bottom surface portion by relatively moving the compression die with respect to the restraint die and the pressure receiving member in the axial direction from the side of the opening end of the cup-shaped raw material toward the bottom surface portion. The manufacturing method being such that the thickened tooth shaping process includes applying a load against the restraint die such that the restraint die restrains the first surface and the second surface. | 12-05-2013 |
| 20140360018 | METHOD FOR MANUFACTURING A GEAR - A method for manufacturing a gear includes forming a bi-material billet from a steel cylinder having a cylindrical wall, a first end closed with a first steel cap, and an open second end distal to the first end. The method includes disposing a core material other than steel into the steel cylinder, welding a second steel cap onto the steel cylinder to form the bi-material billet, and heating the cylindrical wall. The method includes a first forging blow on the heated billet or on a disk-shaped rough forging forged from the heated billet with a first closed blocker die to produce a partial toothed preform, and a second forging blow on the preform with a second closed blocker die to produce a netshape gear. The first closed blocker die has a die cavity including gear tooth forms, and the partial toothed preform includes a plurality of spaced gear teeth. | 12-11-2014 |
| 20150128419 | METHOD OF MANUFACTURING GEAR AND FORGING APPARATUS FOR MANUFACTURING GEAR - A forging apparatus carries out a method of manufacturing a gear having external teeth on an outer circumferential wall surface thereof and internal teeth on an inner circumferential wall surface thereof. First, an internal tooth forming die is inserted through a through hole defined in a workpiece. Next, a pressing die is caused to abut against the workpiece, and an external tooth machining die finishes the external teeth while preventing a support die from being lowered under action of damping mechanisms. Thereafter, a pressing die presses the workpiece to apply a load in excess of a preset load for the damping mechanisms. The support die is then lowered to lower the workpiece along the internal tooth forming die. At this time, the internal teeth are formed on the inner circumferential wall surface of the workpiece. | 05-14-2015 |
| 20150128420 | MANUFACTURING METHOD OF GEARS FOR A SPEED CHANGE DEVICE AND ITS APPARATUS - [Problems] To present a manufacturing method of gears for a speed change device, capable of manufacturing gears for a speed change device by using a manufacturing apparatus, small in the load when forming, and small and simple in structure, and capable of obtaining gears for a speed change device not limited in gear deforming positions, small in generation of strain, and large in strength. | 05-14-2015 |
| 20160038994 | System and Method of Making a Forged Part - A system and method of making a forged part. The method may include forming a workpiece in a first die unit that may be disposed in a first press, transferring the workpiece to a tooth forming die unit that may be disposed in a second press, and forming the workpiece into the forged part by forming a set of teeth on the workpiece with the tooth forming die unit. | 02-11-2016 |
| 029893350 | Gear tooth cutting | 7 |
| 20090139090 | Device for fabricating a toothing at a three-dimensional body produced by forming and fine blanking - A device for fabricating a toothing at an inner facing edge of a three-dimensional pot-shaped body produced by forming and fine blanking exclusively implemented by cutting and/or shaving with a fine blanking die and/or a shaving device. The device includes a base plate and a pressure pad between which the pot-shaped body is receivable. A pilot die is received within a hollow space of a die and is biased in an advancement direction of the die such that a portion of the pilot die protrudes from the hollow space and contacts the base of said pot-shaped body before the die when the die is advanced in the working direction. A groove is thereby created between said curved edge of the pot-shaped body and the pilot die for leading a fine blanking burr or shaving chips into the recess of the pot-shaped body. Further advancement of the die fixing and pressing the burr or the chips into the recess. | 06-04-2009 |
| 20100229395 | METHOD FOR MANUFACTURING RIGID INTERNAL GEAR OF WAVE GEAR DEVICE - A method for manufacturing a rigid internal gear of a wave gear device in which an internally toothed portion formed with internal teeth and a gear main body portion are joined integrally, the method including preforming an internal teeth-forming ring or disc for forming the internally toothed portion by using a first aluminum alloy powder; manufacturing a forging in which the internal teeth-forming ring or disc is placed in a forging die and is integrally formed on its outer side with the gear main body portion using a second aluminum alloy powder, the first aluminum alloy powder being harder and having higher abrasion resistance than the second aluminum alloy powder; and applying post-processing including cutting teeth to the forging. | 09-16-2010 |
| 20130152394 | INDUCTIVE HARDENING OF TEETH OF GEARWHEELS - In a method for manufacturing a gearwheel, a gearwheel blank is clamped in a workholder of a multi-axis machine tool. A milling head is clamped in a tool holder which is rotated by a spindle drive to enable the milling head to mill out tooth spaces of the gearwheel blank to thereby create a gearwheel having teeth. After replacing the milling head in the tool holder with an inductor, the inductor is inserted successively between two adjacent teeth of the gearwheel and supplied with alternating current from a current supply device of the spindle drive to inductively heat at least one of the two adjacent teeth. The inductor in the tool holder is then replaced with a machining tool to remachine the teeth of the gearwheel. | 06-20-2013 |
| 20140053405 | METHOD FOR PRODUCING TOOTHED SECTIONS ON WORKPIECES - In a method for producing toothed sections on workpieces, a toothed section is firstly produced by means of a first tool in the region of a first end face of a workpiece to be toothed. The produced toothed section is reworked on the peripheral face by means of at least one second tool in the region of the first end face, while the toothed section is further produced. If the toothed section is also produced in the region of the second end face by means of the first tool, the reworking in the region of the first end face is already completed, so the toothed section can also be reworked in the region of the second end face. Short cycle times are thereby achieved with a low machine-related outlay. | 02-27-2014 |
| 20150075003 | METHOD FOR MANUFACTURING MACHINED PART, AND MACHINED PART - [Task] To provide a method that makes it possible to easily, inexpensively and accurately manufacture a machined part with a simple configuration and an excellent strength. | 03-19-2015 |
| 20150375320 | METHOD FOR CUTTING OR MACHINING GEAR TEETH AND GEAR-CUTTING MACHINE - The invention concerns a method for the chip-removing generation or machining of gear teeth on a workpiece which is driven in rotary movement about its rotary axis at very high rates of rotation, with a toothed tool that is driven in rotary movement about its rotary axis, wherein the tool and the workpiece are brought into a rolling tooth engagement in the manner of a helical gear transmission with their axes of rotation crossing each other at an angle different from zero, and wherein a further operation is performed on the workpiece and/or on its gear teeth during the time of operating engagement between the teeth of the tool and of the workpiece | 12-31-2015 |
| 20170234402 | Automotive Flywheel with Fins to Increase Airflow Through Clutch, and Heat Management Method | 08-17-2017 |
| 029893360 | Gear blank making | 1 |
| 20160121439 | METHOD OF MANUFACTURING METAL CORE FOR RESIN GEAR - A method of manufacturing a metal core for a resin gear is provided. The metal core has a boss portion into which a shaft is press-fitted and a ring portion to which an outer peripheral resin is joined. The method includes swaging a plate material having a center hole by pressing the plate material in an axial direction to form a swaged body, and forging the swaged body by pressing the swaged body in the axial direction under a higher pressure. The swaging includes deforming a portion around the center hole in the axial direction to form an inner circumferential swaged portion, and deforming an outer circumferential portion of the plate material in the same axial direction to form an outer circumferential swaged portion. The forging includes forming the inner circumferential swaged portion into the boss portion, and forming the outer circumferential swaged portion into the ring portion. | 05-05-2016 |
| 029893370 | With specific gear material | 2 |
| 20080201951 | Work Piece Having Different Qualities - The present invention relates to surface densification of a work piece that comprises at least one toothed section made from sintering material, wherein a first surface of the work piece is densified using a different from a second surface of the work piece. | 08-28-2008 |
| 20080271317 | COMPOSITE GEAR AND METHOD OF FORMING SAME - A composite gear and method of making same. In one embodiment the gear includes a body portion having a plurality of teeth. The gear is formed by placing it in a suitable tool such that a compressive stress is exerted on the teeth adjacent the root portion of each tooth. A portion of the gear adjacent the teeth is wrapped with a resin fibrous material that is allowed to cure while the compressive stress is maintained on the gear. When the resin fibrous material has at least substantially cured and the gear is removed from the tool, a permanent compressive stress is formed at the root portion adjacent each tooth. The compressive stress counteracts the tension stress that is experienced at the root portions of the teeth when the gear is in use, thus significantly strengthening (i.e., toughening) the gear and increasing its fatigue life. | 11-06-2008 |
