| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 474226000 | Link including discrete members forming laterally spaced sides of opening for pulley tooth | 46 |
| 20100173739 | TIMING CHAIN DRIVING SYSTEM - In a timing chain drive, a hybrid driving sprocket, having roller-engaging teeth and side sprocket teeth, cooperates with a hybrid chain having rollers that mesh with the roller-engaging teeth and toothed link plates that mesh with the side sprocket teeth. A driven sprocket from which the chain travels toward the driving sprocket has a cyclically varying tooth pitch that compensates for tension variations due to cyclic variations in the rotational speed of the driving sprocket or to cyclic variations in the load applied to the driven sprocket. The driven sprocket can be a roller sprocket or a hybrid sprocket having roller-engaging teeth and side sprocket teeth for engagement with the teeth on the link plates of the chain. | 07-08-2010 |
| 20130150195 | CHAIN - A chain comprises a plurality of axially spaced tubular rollers that are interconnected by a plurality of link plates. Each link plate has two protruding articulation elements that are each rotatably received in one of the rollers and each have a complementary shaped bearing surface for sliding against the inner surface of the roller. The interconnection of the rollers can be achieved in several different ways, and many different designs of link plate can be adopted. | 06-13-2013 |
| 20150057118 | Method for Producing a Link-Plate Chain - A method for providing a link-plate chain having increased strength by stretching the chain between a pair of spaced, rotatable conical pulleys, wherein the link-plate chain is stretched in opposite directions of rotation of the conical pulleys. The opposite stretching operations impart deformation forces on at least the link-plates and/or rocker pressure pieces that interconnect link plates of the link-plate chain. The deformation forces cause parts of the chain to undergo plasticization regions of the chain components and that result in increased chain strength. | 02-26-2015 |
| 20150292597 | Bicycle Chain - An outer link plate for a bicycle chain is provided. The outer link plate has an interior surface configured to face another counterpart outer link plate in an assembled state and an exterior surface opposite to the interior surface. The outer link plate has an outer perimeter, and first and second end portions including respective first and second openings each having corresponding parallel center axes. An intermediate portion is provided interconnecting the first end portion and the second end portion. The intermediate portion has an axially recessed portion formed along the outer perimeter on the exterior surface, the intermediate portion having a pair of intermediate edges formed along the outer perimeter, the axially recessed portion being formed on at least one of the intermediate edges and including a chamfered portion connecting the at least one of the intermediate edges to the exterior surface of the outer link plate. | 10-15-2015 |
| 20160040753 | LINK PLATE - A link plate, wherein a combining portion is correspondingly configured on each of the two ends of a link plate body, wherein an axle hole is configured on each combining portion and a middle portion is configured between the two combining portions, wherein an arc-shaped connection surface is configured at the junction between the middle portion and a corresponding one of the two combining portions, wherein each connection surface has an inner edge and an outer edge forming borders with the middle portion and a corresponding combining portion, respectively, and being configured as equidistance double arcs, and wherein at least one protrusion protruding from the middle portion is configured between the two connection surfaces. | 02-11-2016 |
| 20160153526 | CHAIN PLATE STRUCTURE | 06-02-2016 |
| 474227000 | With particular structure facilitating disassembly of adjacent links | 2 |
| 20080280717 | CHAIN LINK FOR A POWER TRANSMISSION CHAIN, AND POWER TRANSMISSION CHAIN HAVING AN EXPANDED USEFUL CROSS SECTION - The invention relates to a chain link of a power transmission unit for guiding cables, tubes, or similar. Said chain link comprises two side plates ( | 11-13-2008 |
| 20110028255 | Link Plate for a Bicycle Chain - A link plate for a bicycle chain includes an installation hole defined within a circumferential edge thereof The link plate further includes a ridge extending inwardly from a peripheral wall thereof and having a depth smaller than a depth thereof The installation hole defines first and second apertures. The second aperture extends immediately from the first aperture. Furthermore, the first aperture has a diameter “D1”, and the second aperture includes an upper portion having a diameter “D2” and a lower portion having a diameter “D3”. The diameter “D3” is smaller than the diameters “D1” and “D2”. Additionally, the ridge defines two peak portions disposed between the first and second apertures and spaced from each other by a first distance “d1”. The distance “d1” is smaller than the diameters “D1” and “D3”. | 02-03-2011 |
| 474228000 | With discrete connector extending through laterally aligned apertures in adjacent links | 38 |
| 20080287237 | OIL-FREE CHAIN - In an oil-free roller chain, the inner faces of the outer link plates have recesses that receive the ends of bushings, and the inner faces of the inner link plates have recesses that receive the ends of rollers surrounding the bushings. Each such recess is formed by punching, so that the outer surface of each plate has a bulged portion opposite each recess. The diameters of the bulged portions are greater than the diameters of the corresponding recesses. The bushing can have an oil passage located midway between its ends and serving as an oil reservoir supplying oil to the gap between the bushing and the roller and between the bushing and a connecting pin. | 11-20-2008 |
| 20090069136 | Drive chain and tool device for assembling or disassembling the same - A drive chain includes two end chain components and a connecting plate. Each of the end chain components has a pin hole and a connecting pin. The connecting pin includes a main segment inserted into the pin hole and having a diameter, an anchoring end segment axially spaced apart from the main segment and having a diameter, and a constricted neck extending between the main segment and the anchoring end segment. The connecting plate has two spaced anchoring holes each having a diameter that is originally smaller than the diameter of the main segment and larger than the diameter of the anchoring end segment. The main segment of the connecting pin is force-fitted in a corresponding one of the anchoring holes so that the end chain components are joined to each other. A tool device to assemble or disassemble the drive chain is also disclosed. | 03-12-2009 |
| 20090131209 | ROCKER JOINT PIN TYPE SILENT CHAIN - In a rocker joint silent chain, the link plates have two different engagement pitches, and the connecting pins are composed of combinations of rocker pins and joint pins, where each rocker pin has one of two thicknesses and each joint pin has one of two thicknesses, so that the rocker joint pins of the chain have three different thicknesses. The link plates and connecting pins are arranged randomly along the length of the chain. | 05-21-2009 |
| 20090258742 | ARTICULATING PIN FOR BICYCLE CHAINS AND RELATIVE CHAIN - An articulating pin for the links of a bicycle chain, of the type capable to be inserted in aligned holes of an outer link and of the corresponding inner link of the chain, to hinge the links to one another, has a central portion and a distal portion. The distal end is elastically deformable for the insertion through the holes. | 10-15-2009 |
| 20100285912 | SOLID LUBRICATION OIL-FREE CHAIN - An oil-free chain that includes excellent lubricating properties, and satisfactorily maintains the lubricating properties even in high temperature atmosphere and dust particle atmosphere so that a stable lubrication effect can be maintained for a long period of time. The chain is a bush chain having a pair of inner plates into which the opposite ends of a bush are fitted, and a pair of outer plates which mount the opposite ends of a pair of pins. The pins are rotatably fit-inserted into the bushes of adjoining outer link plates. The inner and outer plates are connected in alternation to form the roller chain in which a roller is rotatably mounted on the outer surface of each bush. A sliding member formed of a 100% graphite sheet is provided between the bush and the pin and/or between the bush and the roller. | 11-11-2010 |
| 20110028256 | CHAIN - A chain such as a roller bush chain comprising a plurality of interconnected chain link members ( | 02-03-2011 |
| 20120004060 | SPROCKET CHAIN - A sprocket chain formed by several pivotally interconnected chain links that have at least one central plate and at least two cover plates which are arranged on both sides of the central plate. The cover plates and the central plate are interconnected using at least two connecting members. The chain links also have inner plates which are arranged between the cover plates and the central plate and pivotally interconnect the chain links. At least two inner plates are provided between the central plate and the cover plates. The ratio between the total width of the stack of inner plates, i.e. the sum of the widths of the inner plates, and the width of the central plate is greater than or equal to 1.3. | 01-05-2012 |
| 20120088619 | CHAIN PLATE HAVING INCREASED PRESS OUT FORCE AND METHOD FOR MAKING SAME - An outer plate for a chain is disclosed, the outer plate having two bores each adapted to receive an end of a pin. Each one of the bores has an inner wall with a layer of imbedded abrasive material. A chain assembled from the outer plates and the pins is also provided. | 04-12-2012 |
| 20130109521 | CHAIN FOR CONTINUOUSLY VARIABLE TRANSMISSION | 05-02-2013 |
| 20130203539 | Link Chain with Link Plates Made of Boron-Manganese Steel - A link chain is provided, in particular a drive chain of a combustion engine, with chain links connected one to another by a chain articulation. The inner and outer chain links, which preferably are arranged in alternation, each have at least two link plates arranged in parallel with each other, each with two link openings. One link pin in each case extends through one of the link openings of the link plates to form a chain articulation. In this design, the link plates are made of a boron-manganese steel. | 08-08-2013 |
| 20150148164 | METAL CHAIN - To provide a metal chain having reduced weight and size but uncompromised strength, and manufacturable/assemblable with reduced work burden and cost. A metal chain is formed by coupling together a plurality of inner links and outer links alternately and pivotably in a longitudinal direction of the chain. Each of the outer link includes a pair of front and back pins and a pair of left and right outer plates. Each of the inner links includes a pair of front and back bushings and a pair of left and right inner plates. The pair of front and back bushings and the pair of left and right inner plates of the inner link are integrally formed as one component. | 05-28-2015 |
| 20160153525 | SLIDING MEMBER, CHAIN LINK, AND CHAIN COMPRISING SAID LINK | 06-02-2016 |
| 20160178032 | CHAIN FOR CONTINUOUSLY VARIABLE TRANSMISSION | 06-23-2016 |
| 20170234403 | CHAIN | 08-17-2017 |
| 474229000 | Connector has bearing surface which is noncircular in transverse cross section | 1 |
| 20090069137 | Transmission chain - Transmission chain with links coupled by rocker assemblies with each two longitudinal pins which roll over each other and of which one cooperates in a force transmitting way with the opposite pulleys of a pair of cone-shaped pulley sheaves, and these pins have a first dimension (b) in the longitudinal direction, a second dimension (h) perpendicular to the longitudinal direction and to the running direction of the chain and a third dimension (d) cross-wise to the longitudinal direction and in the running direction, in which for each value of the first dimension (b) both other dimensions (h) and (d), respectively, are such that the ratio between this dimension (b) and each of the other dimensions, is, taking into account the expected loading of the chain, as small as possible. | 03-12-2009 |
| 474230000 | Connector connects sequential links each having discrete members forming laterally spaced sides | 23 |
| 20080200294 | DOUBLE CHAIN LINEAR ACTUATOR - A linear actuator comprises a pair of chains. Each chain has a first link and a second link. The second link of each chain is adjacent to the first link of the chain. A pivotal connection pivotally connects the first and second links. The first link is pivotable about a pivot axis which is non-perpendicular to a longitudinal axis of the first link. A chain connecting member connects the chains at distal ends thereof. A drive mechanism moves the chains between an extended position and a retracted position. At least a portion of each chain is helically wound when the chains are in the retracted position. | 08-21-2008 |
| 20080248908 | Silent chain - In a silent chain comprising interleaved and relatively pivotable rows of link plates, protrusions formed in the link plates contact relatively pivotable link plates in adjacent rows so that the area of contact is reduced. The protrusions can be annular, or they can be in the form of arcs that are of a size and position such that the arcuate protrusions of each plate do not interfere with the arcuate protrusions of an adjacent plate as the chain bends during use. The plates can have rectangular protrusions, or arcuate protrusions each consisting of an arc-shaped collection of dot-shaped protrusions. | 10-09-2008 |
| 20080287238 | TRANSMITTING MULTI-ROW CHAIN - A transmitting multi-row chain having easy disassembling or assembling such as dismounting or mounting a chain on its sprockets and, when even high load chain tension is applied, the high load is dispersed to each inner plate so that the load balance in the chain width direction is improved. A transmitting multi-row chain in which inner link units each comprising inner plates into which bushes are press-fitted are coupled in parallel with each other through intermediate plates in a width direction of the chain. The coupled inner link units are connected to each other in a large number by connecting pins having a diameter smaller than the diameters of the pin holes of the intermediate plate. The connecting pin is inserted into the pin hole | 11-20-2008 |
| 20100120568 | SILENT CHAIN WITH BUSHINGS - A silent chain with bushings comprises outer and inner links interconnected in alternating relationship. Each outer link comprises outer plates and connecting pins press-fit into the pin holes in the outer plates. Each inner link comprises a center guide plate disposed at a location midway between the sides of the chain, and toothed inner link plates on both sides of the center guide plate. Bushings are press-fit into bushing holes in the guide plate and the toothed inner link plates. The connecting pins of the outer links extend through bushings of the adjacent inner links, thereby connecting the outer and inner links of the chain are in alternating relationship. | 05-13-2010 |
| 20110086736 | LEAF CHAIN - A leaf chain comprises a plurality of links connected together, each of which includes two aligned rollers, at least one first inner plate provided with apertures to pivotally receive the rollers, and two outer plates fixed to the respective rollers and respectively positioned at external sides of the first inner plate. Wherein, two spacers are respectively disposed at both peripheries of the aperture on the first inner plate and annularly disposed on the rollers so as to block a leakage of a lubricant distributed over an interstice formed between each roller and each aperture. | 04-14-2011 |
| 20120277046 | MOTION TRANSMISSION SYSTEM OF A BICYCLE - A bicycle chain having an alternating succession of outer links and of inner links, connected to each other at respective connection ends, each link, outer and inner. The chain has two respective plates, outer and inner, arranged parallel and spaced apart to define a space for receiving a tooth of a sprocket of a sprocket assembly of a rear wheel of a bicycle. The chain has a maximum thickness comprised between and including 4.6 mm and 5.8 mm. | 11-01-2012 |
| 20120316020 | POWER TRANSMISSION CHAIN - In a roller or bushing chain, inner link plats have an oval shape, with a guide-contacting surface continuous with arc-shaped ends, and in the form of an arc having end points that are spaced from each other by a distance greater than the chain pitch but less than the greatest distance between parts of bushing holes in the inner link plates. The outer link plates have straight parallel edges parallel to the direction of chain elongation and semicircular ends continuous with the straight edges. The configuration of the inner link plates prevents the outer link plates from coming into contact with a chain guide. | 12-13-2012 |
| 20120322599 | INNER LINK PLATE FOR BICYCLE CHAIN - An inner link plate is provided for a chain. The inner link plate has a longitudinal centerline, an inside surface arranged to face another inner link plate when the chain is assembled, an outside surface opposite to the inside surface, and an outer peripheral edge disposed between the inside and outside surfaces. The bicycle inner link plate basically has a first end portion, a second end portion and a connecting portion. The first and second end portions are each provided with a connecting opening. The connecting portion includes a recess disposed on the inside surface of the connecting portion. The recess has a maximum longitudinal width on the outer peripheral edge, and a minimum longitudinal width in a region adjacent the longitudinal centerline. The recess at least extends from the outer peripheral edge to the longitudinal centerline. | 12-20-2012 |
| 20150308542 | Bicycle Chain - An inner link plate for a bicycle chain is provided. The inner link plate may have a longitudinal centerline defining a longitudinal direction and comprising a first inner-link end portion including a first inner-link opening having a first inner-link center axis, a second inner-link end portion including a second inner-link opening having a second inner-link center axis parallel to the first inner-link center axis, and an inner-link intermediate portion interconnecting the first inner-link end portion and the second inner-link end portion. The first inner-link end portion may have an extended edge portion extending to be away from the second inner-link end portion in the longitudinal direction. | 10-29-2015 |
| 474231000 | With sleeve rotatable with respect to each link for engaging pulley tooth | 14 |
| 20080214345 | Fixed Pitch Continuously Variable Transmission (FPCVT) - A Continuously Variable Transmission (CVT) for use in applications where a transmission is desired to change the speed of the motor relative to the speed of the final drive. The CVT has a set of chains or belts that are mounted around a set of pins set in radially cut slots of a set of spindles so that the pattern of pins are able to expand and contract radially around the CVT axis via these slots. Sprockets that freely spin in either direction unless a chain or belt has fully seated on at least one tooth are arranged on the pins so that only one sprocket engages one chain or belt allowing for smooth ratio changes while the load in engaged. The spindles share a set of springs that act to return the transmission to a higher ratio at moments the load is overcome. | 09-04-2008 |
| 20080287239 | CHAIN FOR A CHAIN TRANSMISSION - The invention concerns a chain for a chain transmission with chain links coupled by a parellel chain pins, each chain link having at least one link plate, the chain pins forming pivot axes for the link plates at a pitch distance whereby a chain link axis perpendicularly intersects the two pivot axes, said link plates having towards at least one end side of the link plate a cam surface for supporting the link plate on a cylindrical support surfaces of a sprocket wheel with a pitch angle. In accordance with the invention the cam surface ends in a convex curved plane with near the end side an increasing slope angle with the link axis whereby the slppe angle increases to at least half of the pitch angle or to at least seven degrees. | 11-20-2008 |
| 20090017950 | FLEXIBILE BICYCLE CHAIN - A flexible bicycle chain comprises a plurality of chain unit, each chain unit including: two inner chain plates; each inner chain plate having a shape like an “8”, two outer chain plates; each outer chain plate having a shape like an “8”, a size of each outer hole of the outer chain plate being smaller than that of each inner hole of each outer chain plate; a roller unit having a receiving space; a connecting pin received in the receiving space of the roller unit; the connecting pin being longer that the roller unit. Each roller unit includes a middle annular groove, two inclined annular surfaces; the middle annular groove is at a middle section of the roller unit and has a concave cambered shape; and the two inclined annular surfaces are at two ends of the middle annular groove. | 01-15-2009 |
| 20090017951 | TRANSMISSION CHAIN FOR USE IN ENGINE - The plates of transmission chain for an engine are formed with a guide-contacting configuration composed of spaced flat surfaces that come into sliding contact with a flat chain guide, and convex surfaces, continuous with and between the flat surfaces, for sliding contact with a convex chain guide. The convex surfaces are connected by a concave surface that, with the guide surface, forms an oil-retaining clearance. The radius of curvature of the convex curved surfaces of the plate preferably increases gradually from the location where they meet the flat surfaces toward the location where they meet the concave surface. The plates can have the same configuration on the side facing the inside of chain loop as on the side facing the outside of the chain loop. | 01-15-2009 |
| 20090286642 | CHAIN - The outer link plates of a roller chain or rollerless bushing chain have one or more curved grooves formed by pressing, on their inner faces. The grooves connecting one of two pin holes formed in each plate to the other pin hole. | 11-19-2009 |
| 20100035714 | Flexible Bicycle Chain - A chain includes a plurality of inner links in which adjacent two are connected by an outer link. The inner link includes at least one first bushing mounted between the two inner plates and at least one roller mounted in the inner link, outer link and first bushing. The roller includes an engaging section which extends on its outer periphery thereof and in a curved shape with a uniform radial distance with respect to a center thereof. The first bushing includes a retaining section in which the engaging section of the roller moveably fits, and the first bushing and roller includes a gap defined therebetween so that the outer link is able to tilt together relative to the inner link. | 02-11-2010 |
| 20100093475 | CHAIN - In a roller chain or a rollerless bushing chain, each outer link plate is a gourd-shaped plate having, along the direction of elongation of the chain, a narrow middle portion between two end portions larger than the middle portion. The back height of each outer link plate, is smaller than the back height of each of the inner link plates. The area of each cross-section of each outer link plate, on a section plane perpendicular to the direction of chain elongation and passing through the center of a connecting pin, is at least as large as the area of each cross-section of each inner link plate taken on a section plane perpendicular to the direction of chain elongation and passing through the center of a bushing. | 04-15-2010 |
| 20100167858 | NARROW SEAL CHAIN - In a seal chain having ring-shaped seals sealed between outer plates and inner plates, by reducing the thickness of the outer plates and the inner plates, a distance between inner side surfaces of the both inner plates and a distance between outer side surfaces of the both outer plates are set to be same as those of a standard chain, and the length of pins is set to be same as that of the standard chain, so that a narrow seal chain in which a standard guide can be used, and a standard attachment can be attached is achieved. | 07-01-2010 |
| 20110251005 | ROLLER CHAIN - A roller chain comprising pins, bushes, rollers, inner fishplates and outer fishplates. Two bushes are connected to each other by at least two inner fishplates and form a chain link. A roller surrounding each bush is mounted rotatably on its respective bush. Adjacent chain links are connected to each other in an articulated manner as a result of each bush being disposed on a pin protruding beyond both ends of the bush, and two pins surrounded by two successive chain links are connected at least by two outer fishplates. At least a part of the bushes comprises a copper alloy. The bushes are produced in a massive forming process. | 10-13-2011 |
| 20120302385 | WELDED SEAM BUSHING - A bushing including a wall having a generally cylindrical configuration with the first and second ends at the outer surface joined to define a continuous outer diameter and the first and second ends at the inner surface disposed adjacent to define a discontinuous inner diameter and a seam that may extend from the inner surface toward the outer surface to an end point along approximately 40-50% of the thickness of the wall. | 11-29-2012 |
| 20140357440 | CHAIN AND CONNECTING PIN - Provided are a chain and a connecting pin that enable reduction in the number of components and the workload involved in chain assembly, and that enhances the strength of a connecting pin. A chain | 12-04-2014 |
| 20150051035 | NON-MARKING ROLLER CHAIN - A roller chain may include a series of roller links and pin links Each pin link may include composite pin link plates, each having a metallic plate component and a plastic plate component. The metallic plate component may be fixedly mounted on a pair of spaced metallic pin members, and the plastic plate component may be fixedly connected to the metallic plate component and have a pocket formed therein that complementarily receives the metallic plate component. | 02-19-2015 |
| 20160108990 | CHAIN - An object of the present invention is to provide a chain that reduces warping of connecting pins and prevents local wear in the bushings and connecting pins without causing an increase in the chain weight. Provided is a chain | 04-21-2016 |
| 20170234404 | ROLLER CHAIN | 08-17-2017 |
