Patents - stay tuned to the technology

Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Rotary bodies

Subclass of:

074 - Machine element or mechanism

074640000 - GEARING

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
074439000 Sectional 33
074437000 Irregular teeth and bodies 6
074438000 External and internal teeth 2
20080257088MANUFACTURE AND USE OF PARALLEL ECCENTRIC ELECTRO-MECHANICAL ACTUATOR - A parallel eccentric electro-mechanical actuator provides motive power and includes an electric prime mover that drives the reducer's pinion gear. This pinion drives minimum three star gears with stationary shaft bearings. Each shaft contains an eccentric which are completely in parallel with each other. These eccentrics can be thought of as parallel/in-phase driven crankshafts. Each eccentric drives the parallel eccentric (PE) gear through a bearing. The PE gear exhibits a circular motion (without rotation) which in itself is unbalanced. The crankshafts have another eccentric which create an opposite inertia force to balance that of the PE gear. The PE gear contains an external toothed gear on its periphery. It meshes with the internal teeth of the output ring gear. The relative motion between the PE gear and the ring gear is that the PE gear rolls inside the ring gear. This relative motion is called hypo-cycloidal motion.10-23-2008
20110308345INTERFACE WITH MOUNT FEATURES FOR PRECISE ALIGNMENT - A connection for a rotating machine according to an exemplary aspect of the present disclosure includes an interface axially between and adjacent to a first interference fit and a second interference fit.12-22-2011
074436000 Geneva 1
20090158875STARGEAR ASSEMBLY - A multi-piece stargear assembly comprising a hub, a pair of arcuate toothed segments, and a lock ring, the hub having an internal bore, a keyway in the bore, and an external radially extending flange adjacent one end, the ring being configured to fit on an end of the hub opposite said one end, said segments being arranged around said hub, said flange and segments having mutually interlocking surfaces that enable the flange to resist axial and radial movement on said hub of said segments adjacent said flange, said ring and segments having mutually interlocking surfaces that enable the ring to resist axial and radial movement on said hub of said segments adjacent said ring.06-25-2009
Entries
DocumentTitleDate
20080245171SINGLE DIRECTION COUPLING DEVICE AND CORRECTION DEVICE INCLUDING THE SAME - The invention concerns a single direction coupling device, including a first transmission member (10-09-2008
20080276740Drive unit and method for installing a drive unit - The invention relates to a drive unit comprising an internal combustion engine and a gearbox for motor vehicles, wherein for transmitting a torque to the transmission a crankshaft of the internal combustion engine is connected to a transmission-side element via a carrier plate. According to the invention, the carrier plate is designed in at least two parts with separate plate sections.11-13-2008
20080295631DRIVEN COMPONENT OF A PRINTING PRESS - A driven component, in particular a printing couple or folding unit, of a printing press, having several rotating elements, in particular cylinders or rollers, wherein at least two rotating elements are assigned to intermeshing drive gears, is disclosed. The drive gear of a first rotating element, which meshes with the drive gear of a second rotating element, is assigned a co-rotating gear, which is connected to the drive gear of the first rotating element via at least one spring element or bending element, which extends in the axial direction of the first rotating element. The co-rotating gear can be rotated with respect to the drive gear in such a way in the circumferential direction that a meshing between the two intermeshing drive gears that is affected in principle by backlash can be kept free of backlash.12-04-2008
20090205453RING GEAR AND MANUFACTURING METHOD FOR SUCH A RING GEAR - A method of manufacturing a forged article (08-20-2009
20090260469FLEXSPLINE AND WAVE GEAR DEVICE - In a flexspline of a wave gear device, an annular flange thereof is constructed from a first annular part bent at a right angle from an outer peripheral edge of a diaphragm, and a second annular part caused to inwardly protrude at a uniform width from a leading end of the first annular part. It is possible for the annular flange to be disposed within the region where the diaphragm is formed, as viewed in the direction of an axis of the device. An outer diameter can be reduced to a greater extent than with a “silk hat”-shaped flexspline; and when a hollow wave gear device is manufactured, a hollow diameter can be more readily increased than in a case where a cup-shaped flexspline is used.10-22-2009
20100101350TWO-COMPONENT GEAR WHEEL - The invention relates to a two-component gear wheel, comprising a metal formed part (04-29-2010
20100132495CURVILINEAR GEAR AND METHOD - A curvilinear gear system and method for transferring force and speed through a wide range of angles is disclosed. The system can optionally incorporate curvilinear U joints to increase effective range of angles to tailor the system to specific applications. The system includes complimentary gear heads, one of which is a curvilinear gear such as a hemispherical gear. A method of using the gear systems in a transmission apparatus is also disclosed.06-03-2010
20100212445PLANET WHEEL WITH A BEARING BOLT THAT PRESENTS AN AXIAL GROOVE - The invention relates to a revolving gear mechanism with at least two gear wheels which mesh mutually, forming an engagement space, of which one is a revolving gear wheel which is mounted rotatably by means of a bearing on a bolt, and a lateral surface of the bolt forms a bearing surface. According to the invention, at least one axial longitudinal groove is arranged on the lateral surface of the bolt.08-26-2010
20100275712GEAR-BASED CONTINUOUSLY ENGAGED VARIABLE TRANSMISSION - A method is described for changing gear-ratio by displacing at least one part of the engaging surface of a composite gear (11-04-2010
20100294064Core metal and injection gear, and process for manufacturing core metal - Provided is a core metal including a shaft through-hole allowing a shaft to be inserted thereinto, and a resin locking portion allowing a resin to be locked and fixed, the shaft through-hole having a thicker periphery formed on a periphery of a prepared hole allowing the shaft to be inserted thereinto so as to project on any one of or both a front surface and a back surface of the metal material. The prepared hole and the thicker periphery are molded by subjecting a flat metal material automatically transferred with use of a press machine to drawing, drilling, and thickening.11-25-2010
20100307273Method of Manufacture of a Gearbox and a Gearbox Made by the Method - With reference to FIG. 12-09-2010
20110011195GEARWHEEL AND METHOD FOR MANUFACTURING A GEARWHEEL - The invention concerns a gearwheel (01-20-2011
20110079100FREELY MOUNTED WHEEL SET MADE OF MICRO-MACHINABLE MATERIAL AND METHOD OF FABRICATING THE SAME - The invention relates to a gear train (04-07-2011
20110132119Locking System for a Rotatable Part - The invention relates to a locking system for a rotatable part, in particular in arrangements in which two parts which can be rotated in relation to each other, for example a die and a punch in a stamping apparatus, have to be aligned exactly in relation to each other. In order to provide a positionally accurate mechanical locking system with a simple design, the invention proposes that a gearwheel (06-09-2011
20110162473HYPOID GEAR DESIGN METHOD AND HYPOID GEAR - A degree of freedom of a hypoid gear is improved. An instantaneous axis in a relative rotation of a gear axis and a pinion axis, a line of centers, an intersection between the instantaneous axis and the line of centers, and an inclination angle of the instantaneous axis with respect to the rotation axis of the gear are calculated based on a shaft angle, an offset, and a gear ratio of a hypoid gear. Based on these variables, base coordinate systems are determined, and the specifications are calculated using these coordinate systems. For the spiral angles, pitch cone angles, and reference circle radii of the gear and pinion, one of the values for the gear and the pinion is set and a design reference point is calculated. Based on the design reference point and a contact normal of the gear, specifications are calculated. The pitch cone angle of the gear or the pinion can be freely selected.07-07-2011
20110259136SHAFT WITH A GEAR CAST ON ITS FRONT SIDE AND METHOD FOR PRODUCING SUCH A SHAFT - The present invention is directed to a shaft with two front sides and an axis of rotation, whereby the shaft comprises at least one gear with the same axis of rotation, which gear borders at least a first one of the front sides in an axial area. Viewed from radially inside toward radially outside, the gear comprises a connection part with a central receptacle for the shaft, and an outer part with teeth. The connection part is cast directly between the shaft and the outer part. The connection part extends over the shaft in axial direction and covers the first front side.10-27-2011
20110290054PINION CLIP FOR RIGHT ANGLE LINEAR CUTTER - Coupling assemblies are provided for maintaining a secure connection between surgical devices utilizing a shaft-and-pinion configuration and powered drive shafts. The coupling assemblies include a clip to be disposed without or within a pinion for receiving and securing a drive shaft member. The coupling assemblies are designed to maximize restriction of movement between the drive shaft and clip, but avoid impeding the rotational motion of a pinion.12-01-2011
20120085192GEAR DEVICE - A gear device includes a gear, a pin, a plate member, a retainer portion, a contact part and a non-contact part. The pin is inserted into an opening of the gear. The plate member is disposed on a face of the gear and attached along an outer peripheral surface of the pin. The retainer portion is disposed in a vicinity of an end portion of the pin, with the plate member being interposed between the retainer portion and the face of the gear. The contact part is formed by faced surfaces of the retainer portion and the plate member with parts of the faced surfaces annularly making contact in a position closest to an outer peripheral surface of the pin. The non-contact part is formed by the faced surfaces with parts of the faced surfaces not making contact in a position away from the outer peripheral surface of the pin.04-12-2012
20120180589POWER TRANSMISSION PART - A power transmission part is made of a sintered material obtained by press molding and firing granulated powder obtained by granulating raw material powder having iron as a main component. The sintered material can thereby be increased in density by a powder press sintering method. A power transmission part of high strength and high rigidity can thereby be obtained.07-19-2012
20120204667INTERNAL GEAR AND CAP ASSEMBLY AND METHOD OF MANUFACTURE THEREOF - An internal gear and cap assembly includes a gear having a base that extends about an axis between a first and second end. The first end defines a groove that extends to a floor and the groove surrounds the axis. Teeth extend from the base. A lip extends from the first end and also surrounds the axis. A cap has a flange that is inserted into the groove. The lip is deformed toward the groove such that material from the lip flows to trap the flange between the lip and the floor of the groove to retain the cap to the gear in the axial direction. Slots may be defined in the flange such that the material from the lip flows into the slots to provide a key-lock between the cap and the gear to prevent rotation of the cap relative to the gear about the axis.08-16-2012
20120216643TOOTHED PART MANUFACTURING METHOD, TOOTHED PART MANUFACTURING DEVICE, AND TOOTHED PART - A method for manufacturing a toothed part from a cylindrical blank using a forming die. When forming a toothed portion on a radially outer section of the blank by applying a load in the axial direction of the blank to a radially center section of the blank while constraining a portion of an outer circumferential surface of the blank such that a constituent material of the blank flows radially outward, the constituent material of the blank at an intermediate section between the center section and the outer section flows in the axial direction toward a depressed portion of the forming die to form a projection portion. When the load is at maximum, a space is provided between the toothed portion and the forming die, and a space is provided between the projection portion and the forming die.08-30-2012
20120216644TOOTHED PART MANUFACTURING METHOD, TOOTHED PART MANUFACTURING DEVICE, AND TOOTHED PART - When forming a toothed portion on the outer section of a blank by contacting a tooth profile-forming portion of a forming die with a curved portion of the blank, the first projection of the blank is accommodated in a first depression, and a load is applied axially to a center section of the blank so a material of the blank flows radially outward. The material of the blank at the first projection flows in the axial direction to inside the first depression, and the material of the blank at an intermediate section between the center and the outer section flows in axially to inside a second depression to form a second projection. When the load is maximized, a space is provided between a toothed portion and the tooth profile-forming portion, between the first projection and the forming die, and between the second projection and the forming die.08-30-2012
20120216645WORM WHEEL - Provided is a worm wheel that allows the residual stress in the plastic gear forming member thereof to be reduced, and suited for compact design. The worm wheel comprises a metallic core member (08-30-2012
20120227529INTERMEDIATE BEARING DEVICE WITH TOOTHING REINFORCEMENT FOR STARTER - The subject matter of the present invention relates to an intermediate bearing device (09-13-2012
20120227530Work 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.09-13-2012
20120247249Gears and its process of manufacture - A method of manufacturing a gear, and the resulting gear, the method resulting such that the surface layer portions of the tooth portions and a tooth root portion are made to be a carburized layer, the remaining portion of the tooth portions and a portion of a disk portion lying below the carburized layer be a quench-hardened layer, and a region of the disk portion lying deeper than the quench-hardened layer be an unquenched layer. The gear is manufactured using raw material steel having the following chemical composition: C: 0.1% to 0.40% (% by mass), Si: 0.35% to 3.0%, Mn: 0.1% to 3.0%, Cr: less than 0.2%, Mo: 0.1% or less, P: 0.03% or less, S: 0.15% or less, Al: 0.05% or less, N: 0.03% or less, and Fe and unavoidable impurities.10-04-2012
20120297910DRIVE PLATE AND MANUFACTURING METHOD FOR THE SAME - A drive plate includes a disk-shaped plate portion; and a tooth-shaped portion formed at an outer peripheral end of the plate portion. The plate portion and the tooth-shaped portion are integrally shaped from a single steel plate material. The plate portion and the tooth-shaped portion include a carburized layer provided over an entire surface layer of the plate portion and the tooth-shaped portion, the carburized layer having a carbon concentration higher than that of a center portion of the plate portion and the tooth-shaped portion in a thickness direction. The carburized layer of the plate portion is higher in hardness than the center portion of the plate portion in the thickness direction. The carburized layer of the tooth-shaped portion has been subjected to a quenching process, and is further higher in hardness than the carburized layer of the plate portion.11-29-2012
20120297911Forged Composite Powder Metal Part and Method of Making Same - A forged composite powder metal part, such as a CVJ inner race or bevel gear, and method of making the same are disclosed. The forged composite powder metal part includes a outer section concentrated with a first powder metal material, a inner section concentrated with a second powder metal material and a variable boundary profile between the materials of the two sections. For example, in a forged CVJ inner race, the different materials can provide improved wear resistance in the ball tracks and improved spline performance. As another example, in a forged bevel gear, the different materials can be used to create a continuous variable boundary profile that defines the depth of a harder layer over the teeth.11-29-2012
20120325037HELICAL GEAR AND POWER TRANSMISSION APPARATUS - As to a distance in a radial direction of a rotation shaft from a rim at the hub side to an outer peripheral side face, the outer peripheral side face includes a first side region having a distance located at the most leading end side spot in the direction of rotation of a helical gear longer than a distance at a tail end side spot.12-27-2012
20130008277STARTING DEVICE FOR AN INTERNAL COMBUSTION ENGINE - The invention relates to a starting device for an internal combustion engine, having a hollow shaft (01-10-2013
20130061703HELICAL GEAR AND POWER TRANSMISSION APPARATUS - In the helical gear, an opening perimeter wall includes a first arc side face located at the leading end side in the direction of rotation, concave towards the leading end side in the direction of rotation, and having a distance from the arc center as a first radius. The first arc side face includes a side face at a side of the rotation center of the hub, located at position with a distance from the arc center differing from the length of the first radius, on a verge of a virtual arcuate line centered about the rotation center, and passing through the arc center.03-14-2013
20130112026METHOD FOR CAULKING RING GEAR, CAULKING TOOL USED FOR METHOD FOR CAULKING RING GEAR, AND RING GEAR - Disclosed is a caulking tool used for a ring gear press-fit in the outer periphery of a flange of a differential case constituting a differential subassembly, in order to caulk a caulking portion provided on at least either end of the flange in the axial direction, with respect to a plurality of notches formed in at least either end of the ring gear in the axial direction. The notches are formed along the inner periphery of the ring gear. Each notch has a bottom part slanted at a predetermined angle with respect to the radial direction of the ring gear, and a plurality of protrusions which correspond to the notches and are projected from the slant portion, in order to press the caulking portion in the axial direction of the ring gear.05-09-2013
20130118282LOAD RATING OPTIMIZED BEVEL GEAR TOOTHING - The invention relates to a bevel gear wheel (05-16-2013
20130139630RESIN GEAR, AND METHOD AND APPARATUS FOR PRODUCING THE SAME - Gear-shaped resin sheets Sa are laminated such that tooth portions 06-06-2013
20130180352COATED COGWHEEL - A coated cogwheel includes a cogwheel body made from a basis material. A layer which is harder than the basis material is arranged at least on a part of the cogwheel body, for example on the flanks of a tooth. The layer is subdivided by seams into a multiplicity of mutually separated segments.07-18-2013
20130192401BEVEL GEAR FOR A BEVEL-GEAR TRANSMISSION - The invention relates to a bevel gear wheel of a bevel gear mechanism, the teeth of which bevel gear wheel have in each case a load flank and a rear flank, wherein the rear flanks have an engagement region for rear flanks of the meshing gear wheel, wherein the outer region, which surrounds the original maximum possible usable engagement region which normally comes into engagement, of the rear flank and an outer edge region of the original engagement region are reduced in terms of the face height thereof such that said reduced regions always remain free from contact and only the remaining, inner, raised region which is reduced in size comes into contact.08-01-2013
20130192402DRIVING APPARATUS, GEAR MEMBER, AND ELECTRONIC DEVICE - A driving apparatus includes a rotary member and a gear member. The rotary member rotates about an axis of its own. The gear member includes an inner peripheral surface which forms a space corresponding to a shape of the rotary member and an outer peripheral surface on which gear teeth are formed. The gear member is fitted to the rotary member by press fit. The outer peripheral surface includes, in a direction of an axis of rotation of the gear member, a toothed region in which the gear teeth are formed and a non-toothed region in which no gear teeth are formed.08-01-2013
20130192403GEAR WHEEL - Gear wheel and method for reducing vibrations transmitted by a rotating shaft. The gear wheel includes an inner part, which is connectable to a cause of vibration, a connection element and a ring gear. The connection element is structured and arranged to reduce vibrations.08-01-2013
20130199325WORM WHEEL - Each tooth of a worm wheel has a first tooth flank in which a helical surface portion is arranged on one side in a rotational axis direction of the worm wheel and a concavely curved surface portion is arranged on the other side in the rotational axis direction, and a second tooth flank in which a concavely curved surface portion is arranged on the one side in the rotational axis direction and the helical surface portion is arranged on the other side in the rotational axis direction.08-08-2013
20130213167HOLLOW GEAR RING AND METHOD FOR ITS MANUFACTURING - A welded hollow gear ring (08-22-2013
20130220048RESIN GEAR AND MANUFACTURING METHOD OF THE SAME - In a resin gear, which has a height h08-29-2013
20130228028WORM WHEEL FOR ELECTRIC POWER STEERING APPARATUS AND METHOD FOR MANUFACTURING THE SAME - Disclosed is a worm wheel of a reducer of an electric power steering apparatus which is manufactured by integrally injection-molding a hub, a boss, and a gear forming part, thereby making it possible to increase a forming performance of the worm wheel and reduce an amount of material, and increasing a mechanical durability and frictional characteristics of the worm wheel to allow the reducer to be stably used for a long time, and a method for manufacturing the same.09-05-2013
20130239728ROTATING DEVICE - The present invention comprises a rotating device which comprises two pairs of disks. Each pair has a first disk in a first plane and a second disk in a second plane rigidly joined to the first disk. The second plane is perpendicular to the first plane and the first disk in each pair are detachably attached to one another and the second disk in each pair are detachably attached to one another so that each pair connectedly rotates with respect to each other. Their respective circumferential edges are in contact with one another09-19-2013
20130255421TRANSMISSION - A transmission, in particular a coaxial transmission or linear transmission, comprising a toothing, a tooth holder in which a plurality of tooth segments are accommodated to engage with the toothing, wherein the tooth segments are borne to be radially shiftable relative to the tooth holder, a drive element having a profiling for radially driving the tooth segments borne in a radially shiftable manner, wherein the transmission has inner initial stress.10-03-2013
20130269462PRESS-FIT STRUCTURE AND PRESS-FIT METHOD - This invention addresses the problem of providing a press-fit structure and a press-fit method capable of improving the durability of a gear which press-fits into a ring part. As such, the embodiment of this invention is that, while one end side in the central axis direction of the ring gear abuts against a protrusion formed protruding on the outer side of the radial direction of the ring part from the outer circumferential surface of the ring of the ring part, and wherein the press-fit structure press-fits the inner circumferential surface of the gear into the outer circumferential surface of the ring part, when the inner circumferential surface of the gear is press-fitted into the outer circumferential surface of the ring part, there is a tensile strength reduction mechanism reducing the tensile strength generated in the lower portion of the gear teeth in at least the position of the aforementioned end side of the gear.10-17-2013
20130283954INNER RACEWAY WITH AXIAL EXTENSION - An inner raceway (10-31-2013
20130298711IDLER GEAR ASSEMBLY - An idler gear assembly has a compound gear consisting of two gear wheels. The gear wheels are provided with a through bore in which a thin walled bushing is press-fitted. An additional axial fixation element is provided to fixate the bushing into the bore in axial direction. The additional axial fixation element is constituted by a circular radial outward deformation of the wall of the bushing and a circular groove provided in the internal surface of the bore in which the radial outward deformation is located.11-14-2013
20130312560STEEL GEAR AND MANUFACTURING METHOD FOR THE SAME - A steel gear includes a substantially cylindrical outer peripheral ring portion having a toothed shape formed on its outer peripheral surface; and a flange portion extended radially inward from an inner peripheral surface of the outer peripheral ring portion. The steel gear has a thermal history layer formed in the outer peripheral ring portion, and the depth of the thermal history layer in the direction inward from the tooth bottom of the toothed shape of the outer peripheral surface is greater in the first protruding portion and the second protruding portion than in the coupling portion with the flange portion, and is substantially the same between the first protruding portion and the second protruding portion. As a result, even if the “carburization/slow cooling/high-frequency quenching treatment” is used as a manufacturing method of the steel gear, the steel gear has high dimensional accuracy.11-28-2013
20130319154STEEL GEAR AND MANUFACTURING METHOD FOR THE SAME - A steel gear 12-05-2013
20140013888GEAR AND BALANCE SHAFT FOR A PISTON ENGINE - Balance shaft for a piston engine comprises a bearing journal, on which the balance shaft is supported, a gear section, on which a gear is connected in a rotation-locked manner thereto via a press fit or another shaft-hub-connection, and an unbalanced section having an integrally connected unbalanced mass or an unbalanced mass fastened on this unbalanced section using machine elements or via another shaft-hub connection. The balance shaft can alternately comprise steel or cast iron material in the case of a friction mounting and its bearing journals can alternately be implemented as hardened or also unhardened. If the balance shaft is mounted in roller bearings and if the roller bodies have direct contact with the bearing surface, it is implemented in a suitable steel and the bearing journals are hardened. The gear comprises nodular cast iron and is not hardened.01-16-2014
20140041476DRIVING GEAR PHOTOSENSITIVE DRUM - A driving gear includes a shell for fixed connection with a photosensitive roller, a coupling member detachably mounted inside the shell, and a driving member for being driven by a driving shaft located inside a printer. The shell includes two convexities and a rib for engaging two hook pieces and a fitting slot of the coupling member respectively. The coupling member includes a tunnel and a limiting portion located inside the tunnel. The driving member includes a first end portion located between the limiting portion and a bottom portion of the shell, a second end portion extending out of the coupling member, and a protrusion protruding from the first end portion and located in a limiting slot of the coupling member. Therefore, it will be not difficult for the user to install or detach the driving gear to or from the photosensitive roller.02-13-2014
20140041477FREELY MOUNTED WHEEL SET MADE OF MICRO-MACHINABLE MATERIAL AND METHOD OF FABRICATING THE SAME - The invention relates to a gear train (02-13-2014
20140069220TONER DRUM GEAR PROJECTION - A drivable projection for a toner cartridge drum gear includes an axially extending support portion having a plurality of axially extending edges and an end face. A plurality of substantially spherical engagement portions are supported by the support portion, and each engagement portion defines a center that may be substantially aligned with the end face and/or substantially aligned with a respective one of the plurality of axially extending edges. The engagement portions are configured to receive driving rotatable force from the drive mechanism of a printer.03-13-2014
20140076083INTEGRATED MEMBER AND ITS MANUFACTURING METHOD - An integrated member can comprise different members each formed of materials having different mechanical characteristics. A method for manufacturing such an integrated member can comprise an electric resistance welding step in which the first member is press-fit into the second member and the press-fit portion can be electrically energized to achieve the electric resistance welding so as to integrate the first member and the second member. The method can further comprise a carburized layer forming step in which carburizing-quenching and tempering, or carbonitriding-quenching and tempering, is performed on the integrated member obtained in the electric resistance welding step to form carburized layers therein in accordance with the mechanical characteristics of the first member and the second member.03-20-2014
20140090503GEAR AND MANUFACTURING METHOD FOR THE SAME - A gear includes teeth 04-03-2014
20140137683Pinion Gear Assembly - A pinion gear assembly having a pinion, a collar, and a bearing. The pinion may have a gear portion and a hub portion disposed proximate the gear portion. The collar may be fixedly disposed on the hub portion and the bearing may be fixedly disposed on the collar.05-22-2014
20140144269METHOD FOR MANUFACTURING MULTI-STAGE GEAR, AND MULTI-STAGE GEAR - In a method for manufacturing a multi-stage gear in which no gap is formed between a small-diameter gear and a large-diameter gear, there are included a first step of forming the small-diameter gear on an outer peripheral surface of a workpiece, a second step of forming a large-diameter gear part by plastically deforming an end portion of the workpiece to increase the diameter thereof, and a third step of forming the large-diameter gear by cutting the large-diameter gear part.05-29-2014
20140150588Gear with vibration sensor - A gear is provided that includes a gear surface with a vibration sensor. The vibration sensor further includes an accelerometer coupled to a data transmitter and the vibration sensor is provided within a cavity in the gear surface.06-05-2014
20140157928TOOTHED DISC AND METHOD FOR MANUFACTURING THE TOOTHED DISC - 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.06-12-2014
20140157929FLEXPLATES AND METHOD FOR CAPACITOR DISCHARGE WELDING OF FLEXPLATES - A two-piece flexplate assembly having a ring gear welded to a central plate using a capacitor discharge welding process. The weld is established between a joining structure defined between the ring gear and the central plate using either an overlap arrangement, a projection arrangement, or a chamfer arrangement.06-12-2014
20140190301POWER TAKE OFF GEAR WITH A HYDRAULIC IMPACT DAMPER - A power take off (PTO) gear including: an input flange including an outwardly extending protrusion; a ring gear; and a piston including an inwardly extending protrusion and a circumferential end. The PTO gear includes first and second cover plates fixedly secured to the ring gear; at least one elastic element engaged with the flange and the first and second cover plates; and a chamber bounded by the circumferential end of the piston and material forming the ring gear and sealed in first and second axial directions by the first and second cover plates, respectively. For first torque applied to the flange, the flange is arranged to rotate with respect to the ring gear such that: the inwardly and outwardly extending protrusions contacts; the flange displaces the circumferentially curved piston; and the circumferential end of the curved piston displaces fluid disposed in the chamber to dampen motion of the flange.07-10-2014
20140208880Gear Wheel Having Helical Toothing and Segment for a Gear Wheel - A gear wheel includes helical toothing, and a segment for a gear wheel which is made up of segments, each segment having a toothing section having helical toothing, the toothing section being joined to a retaining section.07-31-2014
20140216191PINION VIBRATION DAMPING USING VISCOELASTIC PATCH - A gearwheel extending in an axial direction and in a radial direction, the gearwheel including a radial web carrying an axial annular rim, the rim carrying gear teeth. The web includes a vibration damper device including a layer of viscoelastic material and a backing layer. The layer of viscoelastic material is arranged axially between the radial web and the backing layer, and the layer of viscoelastic material is fixed directly to the web.08-07-2014
20140238171GEAR WITH RIGIDLY CONNECTED DRIVESHAFT - The invention relates to a gear which is rotationally fixed on a driveshaft. The gear consists of injection-molded plastic, and the driveshaft consists of a plastic material which is different from the gear, said shaft being encapsulated by the gear. The shaft consists of plastic, and the plastic of the gear has a higher elasticity than the plastic of the shaft. The shaft has a connecting region which increases the diameter of the shaft in the connecting region where the shaft is encapsulated by the gear.08-28-2014
20140298940METHOD OF MANUFACTURING MULTI-MATERIAL GEARS - A method of manufacturing a multi-material gear is disclosed. The method comprises the steps of (a) heating a first pre-form element of a first material to a temperature at which the first material can be formed; (b) heating a second pre-form element of a second material to a temperature at which the second material can be formed; and (c) forming the first and second pre-form elements in a die at least towards the shape of the gear, thereby providing bonding between the elements.10-09-2014
20140331803SLOTTED BEARING WITH LABYRINTH SEAL RINGS FOR DAMPER ACTUATORS - A drive for adjusting the damper of a building air vent has a main body formed with a receiving aperture. A bearing ring is arranged in the receiving aperture and secured to the main body. The bearing ring has a circumferential direction, wherein the bearing ring has a first end and a second end in circumferential direction. The first end and the second end can be spaced apart in the circumferential direction such that there is a gap between the first end and the second end. A hub for actuating the drive shaft of the damper is fixed to the bearing ring such that the hub is rotatably mounted on the main body relative to the bearing ring.11-13-2014
20150007680FIBER REINFORCED RESIN GEAR, METHOD OF FORMING FIBER REINFORCED RESIN GEAR BY INJECTION MOLDING, FIBER REINFORCED RESIN ROTARY BODY, METHOD OF FORMING FIBER REINFORCED RESIN ROTARY BODY BY INJECTION MOLDING - A plurality of ejector pins are made to project before a molten resin containing reinforcing fibers is injected into the inside of a cavity through pin point gates in a web forming portion in the inside of the cavity and at positions outside the pin point gates in the radial direction. The plurality of ejector pins are retracted from the inside of the cavity after the flow of the molten resin containing reinforcing fibers injected into the inside of the cavity through the pin point gates impinges on the plurality of ejector pins and is divided and before a tooth portion forming portion in the inside of the cavity is filled with the molten resin containing reinforcing fibers. Accordingly, weld lines which extend along the radial direction are formed at positions outside the ejector pins in the radial direction, and the molten resin is filled in portions formed after the ejector pins are retracted.01-08-2015
20150033893IDLER GEAR STUB SHAFT - A stub shaft is disclosed. The stub shaft may have an elongated cylindrical body having a base end configured to be secured to an engine block and an opposing distal end. The stub shaft may also have a collar formed at the base end of the elongated cylindrical body. The collar may be configured to be inserted into a cavity in the engine block to guide attachment of the stub shaft to the engine block. The stub shaft may further have an axial bore formed in the elongated cylindrical body and passing from the base end to the distal end. The stub shaft may also have a radial passage formed in the elongated cylindrical body and in fluid communication with the axial bore. The stub shaft may additionally have a thrust face formed between the base end and the radial passage.02-05-2015
20150033894MECHANICAL STRUCTURE COMPONENT, SINTERED GEAR, AND METHODS OF MANUFACTURING MECHANICAL STRUCTURE COMPONENT AND SINTERED GEAR - A sintered gear serving as a mechanical structure component is a mechanical structure component made of a metal sintered body, and includes a base region; and a high density region formed so as to include a maximum stress position at which a maximum tensile stress or a maximum shear stress is applied, and to include a surface, in which the high density region is lower in porosity than the base region. A surface hardened layer is formed in a region including the surface by performing a hardening process.02-05-2015
20150047447GUIDE PLATE MOUNTING STRUCTURE OF FUEL PUMP - A guide plate mounting structure of a fuel pump, the guide plate mounting structure may include a fuel pump having a housing, a driving shaft protrudedly formed from the housing to the outside of the fuel pump, a block mounted onto an outer peripheral surface of the housing of the fuel pump, a guide plate having a first through hole formed at a center thereof and being positioned at an end of the block, and a fuel pump gear having a second through hole formed at a center thereof and being mounted to the driving shaft of the fuel pump through the second through hole, and a rim formed on an end surface of the fuel pump gear so as to be inserted into a first end surface of the guide plate.02-19-2015
20150047448GEAR - A gear includes an inner ring portion, an outer ring portion, and a number of spokes connecting the inner ring portion with the outer ring portion. An outer circumferential surface of the outer ring portion is provided with teeth. Each spoke includes a curve-shaped main portion, an inner end section at an inner end of the main portion which connects to the inner ring portion, and an outer end section at an outer end of the main portion which connects to the outer ring portion. At least one of the inner end section and outer end section is formed with a furcated structure.02-19-2015
20150323050SHAFT END ADAPTER AND BALL SCREW ASSEMBLY - The assembly of a shaft member and a shaft end adapter which are manufactured separately can be accomplished with a high precision in coaxiality and straightness at a high efficiency. A tubular portion is formed with a circumferentially continuous portion at least in a part thereof adjoining a free end thereof, and a slit extends axially through a wall of the tubular portion in exclusion of the circumferentially continuous portion. A fastening bolt configured to close the slit is mounted on the tubular portion.11-12-2015
20150323054DRIVE SPINDLE AND SPINDLE DRIVE AND METHOD FOR PRODUCING A DRIVE SPINDLE - A spindle drive (11-12-2015
20150345614DRIVE DEVICE, IMAGE FORMING APPARATUS, AND GREASE COMPOSITION - A drive device includes a gear having a hole; a shaft that passes through the hole; and a grease composition that is held in a clearance between the shaft and an inner peripheral surface of the hole. The gear rotates on a peripheral surface of the shaft. At least one of the gear and the shaft is made of a resin. The clearance is in a range of 10 to 110 μm . The grease composition contains a hydrocarbon base oil and lithium soap serving as a thickener. A weight ratio of the hydrocarbon base oil to the lithium soap is in a range of 94.5:5.5 to 96.0:4.0. A consistency of the grease composition is in a range of 360 to 400.12-03-2015
20150377336DRIVE PLATE AND METHOD FOR MANUFACTURING THE SAME - A drive plate includes a plate section coupled to a crankshaft of an engine and a rim section including a plurality of teeth that meshes with a pinon gear of a cell motor for cranking the engine. The plate section and the rim section are integrally molded by press working the drive plate in an axial direction. A free end on a side opposite to a base end which is connected to the plate section of the rim section is brought closer than the base end to a central axis of the plate section, that is, the drive plate.12-31-2015
20160010309SUPPORT RAIL AND SWING GEAR ASSEMBLY FOR A MINING VEHICLE01-14-2016
20160016368GEAR AND MANUFACTURING METHOD THEREOF - In a manufacturing method, an annular preform made of reinforcing fibers is set in a region of a mold which corresponds to a sleeve. In this state, this region of the mold and a region of the mold which corresponds to a tooth portion are filled with a resin. A gear is manufactured by this process.01-21-2016
20160033008GEARBOX - A gearbox includes a main housing, a cover, a worm wheel and an output shaft. The main housing includes a receiving chamber having a bottom and a hub. The cover is mounted to an opening of the receiving chamber. The worm wheel is mounted in the receiving chamber. The output shaft is mounted to a center of the worm wheel and coaxially rotatable with the worm wheel. The output shaft extends outwardly through the hub from the receiving chamber. The hub directly supports either the worm wheel or the output shaft.02-04-2016
20160033026DRIVING FORCE TRANSMISSION MECHANISM AND IMAGE FORMING APPARATUS - A drive transmission mechanism includes a rotatable member provided with a drive transmitting portion; and a shaft supporting the rotatable member; wherein the shaft has a large diameter portion, a small diameter portion having a diameter smaller than that of the large diameter portion, at least one middle diameter portion having a diameter smaller than that of the large diameter portion and larger than that of the small diameter portion, and a stepped portion at a boundary between the small diameter portion and the middle diameter portion.02-04-2016
20160040773TORQUE TRANSMITTING ASSEMBLY INCLUDING A SPROCKET ASSEMBLY DISPLACEABLE ALONG A SHAFT AND METHOD THEREOF - A torque transmitting assembly, including: a shaft including a longitudinal axis, first and second longitudinal ends, a radially outermost surface, a first portion including at least one indentation, and second and third portions between the first portion and the first and second longitudinal ends, respectively; and a sprocket assembly disposed about the shaft and including a sprocket with a circumferentially disposed and radially outwardly extending teeth and at least one key engaged with the sprocket. The sprocket assembly is displaceable along the shaft to displace the at least one key into the at least one indentation. The sprocket is non-rotatably connected the shaft when the at least one key is disposed in the at least one indentation. At least respective portions of the radially outermost surface are at a uniform distance from the longitudinal axis in a radial direction orthogonal to the longitudinal axis and extending from the longitudinal axis.02-11-2016
20160047453FIBER-REINFORCED RESIN GEAR - Provided is a fiber reinforced resin gear whose durability in use under a high temperature is enhanced. A fiber reinforced resin gear is formed by injecting a resin material containing glass wool into the inside of a cavity of a mold. A fiber diameter of the glass wool is scattered in a wide range of 0.1 to 15 μm, and is distributed such that a most frequent value of the fiber diameter appears within a range of 2 to 5 μm, and an average fiber diameter of the glass wool falls within a range of 3 to 5 μm. The fiber reinforced resin gear according to the present invention can enhance durability and abrasion resistance under a high temperature compared to a conventional fiber reinforced resin gear.02-18-2016
20160062299GEAR APPARATUS AND IMAGE FORMING APPARATUS - One or more exemplary embodiments provide a gear apparatus. The gear apparatus includes a gear including a shaft hole, a reinforcing member that has a higher stiffness in comparison to the gear, and a rotation shaft that is inserted into the shaft hole through the reinforcing member. In this example, the gear and the reinforcing member are connected such that they rotate together, by a first connecting portion provided at a radial outside of the shaft hole. In this example, the reinforcing member and the rotation shaft are connected to rotate together, by a second connecting portion.03-03-2016
20160109015WORM SHAFT - The invention relates to a worm shaft (04-21-2016
20160116048PINION ASSEMBLY HAVING A BEARING SUPPORT SURFACE - A pinion assembly having a pinion and at least one bearing unit. The bearing unit may have a set of bearing elements and an outer race. The bearing elements may be rotatably disposed on a bearing surface of the pinion such that the bearing elements may be disposed between and may engage the bearing surface and the outer race.04-28-2016
20160123445BALL SCREW ASSEMBLY FOR AIRCRAFT BRAKE - A mechanical linear actuator in an aircraft brake may include a ball nut, a ball screw, and an actuator drive unit housing. The ball screw may rotate to drive the ball nut axially. The ball screw and the actuator drive unit housing may form a series of annular raceways. The ball screw may have a first window corresponding to a first raceway and a second window corresponding to a second raceway. Balls may be inserted into the first raceway through the first window and into the second raceway through the second window.05-05-2016
20160131241BEVEL GEAR OR HYPOID GEAR HAVING CONICAL TOOTH SHAPE IN THE LONGITUDINAL DIRECTION AND HAVING CONSTANT TOOTH GAP WIDTH IN THE BASE - A bevel gear or hypoid gear (05-12-2016
20160146326DRIVE PLATE AND METHOD FOR MANUFACTURING THE SAME - A drive plate includes a plate section connected to a crankshaft of an engine, and an annular ring gear section that extends in an axial direction from an outer circumference of the plate section and includes external teeth that mesh with a pinion gear of a cell motor for cranking the engine, where the plate section and the ring gear section are integrally formed by press working; each of the inner side recesses is formed on an inner circumferential surface of the ring gear section so as to be located on an inner side of each of the external teeth at least on a play end side of the ring gear section; and each of the external teeth includes a step portion recessed toward the inner side than a tooth tip on the play end side.05-26-2016
20160186363DIAMOND COATING AND METHOD OF DEPOSITING THE SAME - The invention concerns a diamond coating characterized in that it includes at least one stack of a first nanocrystalline diamond layer and a second microcrystalline diamond layer.06-30-2016
20160186852REDUCTION GEAR - A reduction gear includes a shaft that has a gear portion and a ring gear that is mounted on the shaft at a position that is away from the gear portion of the shaft. The shaft has at the position in outer periphery thereof a plurality of stepped first teeth arranged along circumferential direction of the shaft. Each first tooth has a lower portion and a higher portion that is higher than and contiguous to the lower portion in axial direction of the shaft, and the higher portion having a step surface that is contiguous to the lower portion. The ring gear has in inner periphery thereof a plurality of second teeth arranged along inner circumference of the ring gear, and the second teeth are fitted to grooves between the first teeth through splines. The second teeth are set in contact with the step surfaces of the first teeth.06-30-2016
20160200004METHOD OF MANUFACTURING MOLDING MATERIAL, MOLDING DIE FOR USE IN THE MANUFACTURING METHOD, AND METHOD OF MANUFACTURING RESIN ROTATOR07-14-2016
20160201784MECHANICAL EXFOLIATION APPARATUS07-14-2016

Patent applications in class Rotary bodies

Patent applications in all subclasses Rotary bodies

Website © 2025 Advameg, Inc.