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Class 29/893.33 - Punching or stamping


Subclass of Class 29 - Metal working
Definition: Process wherein the shaping of the gear includes the use
No. of patents: 38
Last issue date: 11/09/2010


NumberTitleIssue Date
7827693Method of manufacturing powertrain member
A method of manufacturing a powertrain member capable of suppressing an effect of heat distortion is provided. A method of manufacturing a powertrain member including a disk portion provided to extend from a boss portion in a direction perpendicular to a rotation ax...
11/09/2010
7322094Method for manufacturing a head stack assembly
A head stack assembly of a disk drive unit including a head arm assembly (HAA) having a head gimbal assembly, a drive arm to be connected with the head gimbal assembly; wherein the drive arm comprises a securing portion, a connection portion and a spacer connecting ...
01/29/2008
7254976Method of manufacturing liquid ejection head
There is provided a first die in which a plurality of projections are arrayed in a first direction with a fixed pitch. Each projection is elongated in a second direction perpendicular to the first direction. The first die faces a first face of a plate member. A seco...
08/14/2007
7249484Method for manufacturing a liquid ejection head
There is provided a first die, in which a plurality of projections are arrayed in a first direction with a fixed pitch to form at least one array of the projections. Each of the projections is elongated in a second direction perpendicular to the first direction. The...
07/31/2007
7178375Apparatus and method for stamping and deburring clutch discs
Stamped and deburred clutch discs (20a, 20b) are provided by progressive stamping apparatus (46) whose method of use performs a two step stamping of the clutch disc blank and a third deburring stamping step that removes burrs on op...
02/20/2007
7134537Multi-part synchronizing ring of a synchronization device
A multi-part synchronizing ring (1) of a synchronization device with an annular base body (2) and with at least one friction surface (19) on the base body (2), as well as with teeth (3) pointing outwards, has at least one driver el...
11/14/2006
7107681Heating roller, method of producing the heating roller, and heating device, fixing device and image forming apparatus using the heating roller
A heating roller including a core of hollow cylinder form and wherein a thickness of the core is thicker in a center portion thereof than in both end portions thereof. Further, a heating device may have the heating roller, a fixing device may have the heating roller...
09/19/2006
7096754Nested sector gears
A sector gear is formed as one of a pair of mirror image gears (12, 14). Each of the sector gears has an arcuate portion (16) having a series of teeth (18) on an outer periphery thereof, and a V-shaped base portion (20) having a first leg...
08/29/2006
7055353Progressive stamping die
A progressive stamping die system and method of operation providing dimensionally accurate flat stamped parts. A biasing mechanism is provided in actual alignment with a coin punch member in order to accurately control the configuration and planar accuracy of the st...
06/06/2006
7036227Process for making ratchet wheels
A process for manufacturing ratchet wheels including the steps of: forming a cylindrical forging billet by hot or cold forging, the forging billet having a thru hole of inter-communicating recesses which are pre-formed in a forging die; providing a broach having tee...
05/02/2006
7028403Method of manufacturing friction plate and apparatus thereof
A method of manufacturing a friction plate including a plurality of frictional material segments which are punched into a predetermined shape, and a core plate onto which the plurality of frictional material segments are annularly bonded, comprising step of punching...
04/18/2006
6974012Sliding collar produced by powder metallurgy
A sliding collar has claw internal toothing and teeth projecting from at least one of the end surfaces. The individual teeth have lateral surfaces configured as lateral surfaces of a cone segment or as lateral surfaces of a cone segment and one or more truncated-con...
12/13/2005
6910564Toothed electromagnetic clutch brake
A rotor ring and an armature for use in a toothed electromagnetic clutch or a toothed electromagnetic clutch brake. A method of manufacturing rotor rings and armatures used in toothed electromagnetic clutch or a toothed electromagnetic clutch brakes. ...
06/28/2005
6868607Electric power steering apparatus and method of manufacturing gear used therefor
The support body engaged with the interior side of the tooth body provided at the worm wheel of the electric power steering apparatus comprises: a corrugated cylinder part press-formed to have a plurality of concavities on the exterior side thereof and convexities t...
03/22/2005
6757975Multi-layered compliant mechanisms and method of manufacture
A compliant mechanism and method of manufacturing the same includes a plurality of layers formed from stamping a plurality of layers from a layer of thinner material and stacking the layers together. Compliant mechanisms can include clutches, switches, derailleurs, ...
07/06/2004
6682625Method and apparatus for manufacturing profiles and laminates
A method for manufacturing profiles formed so as to have different cross-sectional shapes in the height direction, in which a long-sized hoop of workpiece is indexed, a plurality of types of component members having outer contours corresponding to the res...
01/27/2004
6510762Member comprising several layers of a flat material and method for making the same
A control cam or a gear wheel having a plurality of layers of flat material placed one on top of the other. Each of the layers of flat material is of a multi-part form with partition lines that extend in a direction of planes over the layers of material. ...
01/28/2003
6370931Stamping die for producing smooth-edged metal parts having complex perimeter shapes
A stamping die produces gears or other parts having quality tooth forms or the like from smooth edged metal blanks. A lower portion of the die includes a trim punch, whose perimeter shape corresponds to the shape of the desired part, and a vertically mova...
04/16/2002
6223578Method of manufacturing a sheet pressing wheel
A method for manufacturing a metal part and a sheet pressing wheel, in which reduction of their manufacturing cost is intended by enabling them to be formed only by plastic work such as press-work even if they are very small; and a printer in which such w...
05/01/2001
6082001Method for manufacturing a clockwork wheel
A clockwork wheel (1) including a plate (3) provided with a first series of peripheral teeth (4) and a second series of teeth (5) arranged at right angles to the plate is manufactured in a strip of steel suitable for stamping and by means of a progressive...
07/04/2000
6016602Method of producing a sheet metal gear
The present invention relates to a method of producing a sheet metal gear in which a metal sheet (2) is used as a starting material and a gear is formed in the outer peripheral edge of the metal sheet. The object of the production method is to finish easi...
01/25/2000
6014806Adjustable hinge mount for reclinable seat
An adjustable hinge mount in which a first hinge member is fixed to a seat proper or frame and a second hinge member fixed to the seat back comprises a control arrangement acting on a bearing plate with upper teeth for locking engagement with internal tee...
01/18/2000
5722164Method for manufacturing gearing components with special gearing, especially synchromesh gearing
The gearing component, in this case a synchronizer ring with synchromesh gearing for automobile gear boxes, is manufactured by cutting it out of a strip of material with a precision cutting machine, at the same time forming gearing out of radial and at le...
03/03/1998
5463891Method for producing ratchet devices
A method for producing ratchet devices, the method including the steps of forming a circular recess in a blank metal plate by drawing, compressing the metal plate in a pair of dies so as to reduce the depth of the recess and thicken the side wall thereof,...
11/07/1995
5398408Method for manufacturing toothed gears for a reclining car seat adjustment
A toothed disc for the adjustment device of a reclining car seat and a method of manufacturing the same. A material strip is placed onto a precision blanking machine. The material strip is stamped so that a portion of the material strip is displaced and f...
03/21/1995
4839952Process for manufacturing toothed parts
A process for manufacturing toothed parts having a tooth profile on a portion of their outline. The process utilizes a press machine having top and bottom die sets with stock interposed therebetween at uniform intervals in sequence with the vertical opera...
06/20/1989
4770572Press for manufacturing helical gears
A press for manufacturing helical gears having a punch with a cutting edge; a die with a cutting edge, one of the cutting edges being shaped as a helical gear and the other having a shape corresponding to the shape of the one cutting edge; and a bolster r...
09/13/1988
4727636Manufacturing method for an elliptic gear
The method includes providing an aluminum plate having an outer peripheral portion in an elliptic shape, the outer peripheral portion including a plurality of tooth portions. An intermediate element is formed by pressing the aluminum plate to cause the ou...
03/01/1988
4698889Synchronizer blocker ring core of low material thickness with coined lugs
A new core for a synchronizing ring for gear synchronization is produced using a punching and stamping method. The lugs for coupling to the clutch are produced by stamping from the material of the conical core....
10/13/1987
4630498Laminated wheel assembly
A wheel assembly includes a cam and a cam gear mounted on a camshaft of an internal combustion engine. The cam gear is constructed of a laminated stack of flat plate members which are disposed in abutting relationship to one another to form a plurality of...
12/23/1986
4599775Method for manufacturing synchronizer clutch teeth
A method for making clutching teeth having crown bevels and rear cut sections includes fine stamping crown bevels on the front face of the raw part, trimming the outer surface of the part, bending the portion of the part in which the teeth are being forme...
07/15/1986
4586360Method of and apparatus for the fine cutting (punching) of articles
Fine die stamping of workpieces from sheet metal is effected by clamping the workpiece between a die plate and guide plate, supporting the portion of the material to form the article by an ejector which is displaced along with the punch, and driving the s...
05/06/1986
4563039Hinge joint for use in the seats of motor vehicles and the like
A hinge joint which connects the back to the remainder of the seat in a motor vehicle has first and second leaves respectively provided with punched internal and spur gears. The internal gear receives the spur gear and at least one of its internal teeth m...
01/07/1986
4469376Hinge, particularly for seat with adjustable back rest and method of manufacturing the same
A hinge has two hinge parts pivotally connected with one another and an adjusting and fixing device including interengaging external and internal gears, wherein each gear has an annular groove formed by deformation in the region of its teeth root circle s...
09/04/1984
4318310Gear crank apparatus for a bicycle
A chain gear for a bicycle is formed from an approximately rectangular metallic band-shaped plate which has gear teeth formed along one edge and which is equal in length to the peripheral length of the chain gear. The band-shaped plate is wound into a rin...
03/09/1982
4275924Hinge mount having a wobble gear adjuster for a tiltable seat back of a motor vehicle seat
The hinge mount for a motor vehicle seat having a reclinable seat back comprising a wobble gear assembly which includes an internal gear and a spur gear formed integrally with the assigned hinge member by impressing a wall portion of the hinge member to s...
06/30/1981
4189951Anti-backlash gear
An anti-backlash twin gear formed by a pair of identical half-gears, each fabricated by stamping a metal sheet to create a toothed wheel provided with a diametrical spoke having a central mounting bore. The arched area between one side of the spoke and on...
02/26/1980
4106357Multistage gear crank for a bicycle
A multistage gear crank for a bicycle, comprising at least two chain gears and a crank body, which chain gears together with a mounting plate for mounting the two gears to the crank body are formed by punching only one metallic sheet....
08/15/1978
 
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