| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 474161000 | Having nonmetallic component | 15 |
| 20080312018 | Power transmission and hub used for power transmission - In a power transmission | 12-18-2008 |
| 20090093329 | CHAIN NOISE REDUCTION DEVICE - A cushion ring ( | 04-09-2009 |
| 20090118047 | RANDOM ELASTOMER CUSHION RINGS FOR A CHAIN SPROCKET - A sprocket includes a plurality of teeth spaced about its periphery, roots located between pairs of adjacent teeth, and a cushion ring contacted by a chain engaging the sprocket teeth. The roots have root radii defined as the distance between the center of sprocket and the point along the root closest to the sprocket center in the radial direction. In some embodiments, the roots have three distinct radii. The cushioning material of the cushion ring receives the impact while engaging the chain. In some embodiments, the cushion ring has a contour substantially following the contours of the sprocket teeth geometry. In some embodiments, the cushion ring has a randomized contour to provide predetermined cushioning that varies from tooth to tooth around the sprocket. | 05-07-2009 |
| 20090264234 | Electric rotary machine - An AC generator for vehicles as an electric rotary machine, a pulley is fixed to a rotating shaft, and a belt transmits a driving force from outside to the rotating shaft via the pulley. The pulley comprises a cylindrical portion in contact with the belt, an attachment part screwed and fixed to the rotating shaft by fitting, a supporting part which joins the attachment part and the cylindrical portion, and a reinforcement part having its form projected to an inner diameter side of the cylindrical portion that is located in the opposite side of the supporting part to the direction against the center position of an axis of the belt | 10-22-2009 |
| 20100304907 | Torsional Compensator - A torsional compensator having an inner hub, an outer sprocket, left and right grippers, and a resilient torsion sleeve. The torsion sleeve occupies a generally annular cavity between the inner hub and outer sprocket and each end of the sleeve is coupled to a gripper. One gripper is coupled to the inside of the outer sprocket and the other gripper is coupled to the outside of the inner hub and they are axially spaced apart. The inner hub supports the outer sprocket for coaxial rotation thereon. | 12-02-2010 |
| 20110300977 | SPROCKET - In a sprocket comprising a sprocket hub, sprocket teeth and a cushion plate for contacting link plates of a transmission chain, the cushion plate is formed with concave portions at angular positions corresponding to the angular positions of the tips of the sprocket teeth, thereby avoiding contact, or reducing contact pressure, between the cushion plate and the middle parts of link plates of the chain. | 12-08-2011 |
| 20130143704 | SPROCKET - The invention relates to a multipart sprocket ( | 06-06-2013 |
| 20140100070 | PULLEY STRUCTURE OF BELT TYPE ELECTRIC POWER STEERING GEAR - Provided is a pulley structure of a belt type electric power steering (EPS) gear, and more particularly, a pulley structure of a belt type EPS gear capable of providing good assemblability using an engineering plastic and a specific structure. The pulley structure of the belt type EPS gear includes an insert ring section coupled to a ball nut, a support section configured to support the insert ring section, a first flange section configured to prevent separation of a belt, a pulley having a driving section configured to receive a driving force of the belt, a support frame disposed at one side surface of the driving section and having a bent shape to have an internal space when coupled to the ball nut, and a second flange section disposed at one side surface of the support frame and configured to prevent separation of the belt. | 04-10-2014 |
| 20140206486 | RADIALLY, AXIALLY, AND TORSIONALLY COMPLIANT SPROCKET - A radially, axially, and torsionally compliant sprocket includes a rim including teeth thereon, a hub within the rim including a central bore, and a compliant open cell structure extending between the hub and the rim. | 07-24-2014 |
| 20140315674 | Injection-molded pocket-type chain wheel made of fiber-reinforced plastic - The invention relates to a pocket-type chain wheel ( | 10-23-2014 |
| 20140335987 | BICYCLE SPROCKET - A bicycle sprocket includes a sprocket body, and a plurality of sprocket teeth. At least one of the sprocket teeth includes a first layered member, a second layered member and a third layered member. The first layered member has a first axial surface and a second axial surface. The second layered member is attached to the first axial surface such that the first and second layered members overlap each other in an axial direction as viewed parallel to a rotational axis of the sprocket body. The third layered member is attached to the second axial surface such that the first and third layered members overlap each other in the axial direction as viewed parallel to the rotational axis of the sprocket body. The first layered member has a specific gravity that is less than those of the second layered member and the third layered member. | 11-13-2014 |
| 20150045165 | RUBBER COATED CHAIN SPROCKET - A rubber-coated chain sprocket, may include a body into which a rotation shaft is inserted, a teeth bottom portion having a wave shape along the outer edge of the body, wherein the teeth bottom portion receives a chain bush therein, a shoulder portion projecting in both side directions along the inner edge of the teeth bottom, and a rubber coating portion formed of rubber material and covering the edge of the shoulder portion, wherein the rubber coating portion has projections along the outer edge at a regular interval, such that a chain plate presses and makes close contact with one of the projections. | 02-12-2015 |
| 20160003340 | NOISE, VIBRATION, AND HARMONICS REDUCING SPROCKET TECHNOLOGY - A number of variations may include a sprocket using one or more slot(s) and/or compressive or elastic material in order to lower the NVH. A number of variations may include a sprocket which isolates the vibrations created by the impact of the chain with the sprocket so that the vibrations are prevented from traveling into the shaft. | 01-07-2016 |
| 20160047456 | Belt Pulley and Gear Nut with Such a Belt Pulley - A belt pulley for a gear mechanism, in particular for a steering gear, having a cylindrical body having an outer surface on which a toothing made of a plastic material is provided, and a fastening flange which is provided with fastening openings, is characterized in that the toothing is configured integrally with the cylindrical body. | 02-18-2016 |
| 20160153541 | RADIALLY, AXIALLY, AND TORSIONALLY COMPLIANT SPROCKET | 06-02-2016 |
