| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 474212000 |
Link including integral surfaces forming inwardly opening groove (e.g., silent chain, etc.)
| 60 |
| 474226000 |
Link including discrete members forming laterally spaced sides of opening for pulley tooth
| 46 |
| 474207000 |
Including nonmetallic part
| 7 |
| 474209000 |
Including ball or roller bearing circumferentially spaced about pivotal axis between links | 4 |
| 20080234086 | CYLINDRICAL ROLLER-INCORPORATED ROLLER CHAIN - A cylindrical roller-incorporated roller chain, which can reduce wear of the side plates and also can reduce radial wear. A roller chain for a conveyor in which a plurality of cylindrical rollers are composed of either a casehardened steel cylindrical roller | 09-25-2008 |
| 20100248880 | CYLINDRICAL ROLLER-INCORPORATED ROLLER CHAIN - A cylindrical roller-incorporated roller chain, which can reduce wear of the side plates and also can reduce radial wear. A roller chain for a conveyor in which a plurality of cylindrical rollers are composed of either a casehardened steel cylindrical roller | 09-30-2010 |
| 20130296087 | Ultra High Efficiency Low Friction Drive Chain for Wind Turbine Applications - A low friction joint apparatus for chain links is provided. The apparatus may include a first link pin rigidly coupled to a first chain link, a second link pin rigidly coupled to a second chain link, a sprocket roller coaxially and pivotally disposed about the second link pin, a plurality of radial bearings radially disposed between the second link pin and each of the first link pin and the sprocket roller, and a plurality of axial bearings axially disposed between the second link pin and the first chain link, and between the sprocket roller and the second chain link. The second link pin may be coaxially and pivotally disposed about the first link pin. The sprocket roller may be rotatable relative to each of the first and second chain links. | 11-07-2013 |
| 20150080161 | Bearing Roller Chain - A bearing roller chain includes a tubular bush configured to interconnect link plates facing each other, a tubular metal-made roller through which the bush is inserted, a plurality of metal-made anti-friction rollers arranged between an inner circumferential surface of the roller and an outer circumferential surface of the bush, and annular nonmetallic restraint members fitted into openings at the opposite ends of the roller in an axial direction, with the bush inserted through the restraint members, the restraint members configured to restrain axial direction movement of the plurality of anti-friction rollers. | 03-19-2015 |
| 474232000 |
Link including common member forming laterally spaced sides of opening for pulley tooth | 3 |
| 20140038759 | CHAIN CONNECTING PIN - A chain connecting pin basically includes a pin body, a connecting portion and an inserting portion. The pin body has a first axial end face and a second axial end face, the second axial end face having a recessed surface with respect to an outermost edge of the second axial end face. The connecting portion is attached to the recessed surface of the second axial end face of the pin body. The inserting portion is attached to the connecting portion. | 02-06-2014 |
| 20110098146 | Drive Chain - A single link and chain having the single link wherein the link includes two opposing side link members, each side link member having a first pin receiving surface one a first end and a second pin receiving surface on a second end, wherein the side link members are integrally connected by a cross link member, wherein the side link members are maintained in opposing relation such that the respective first pin receiving surfaces are coaxially aligned with one another and second pin receiving surfaces are coaxially aligned with one another. | 04-28-2011 |
| 20100292039 | LUBRICANT AND OIL-FREE CHAIN - An oil-free chain is constructed by alternately connecting a pair of outer link plates connected using pins and a pair of inner link plates connected using oil-impregnated bushings into which the adjacent pins of the outer link plates adjacent to the inner link plates are fitted. The oil-impregnated bushings are impregnated with a lubricant having a kinematic viscosity in the range of ISO-VG grade 46 to 460, the weight % of an ingredient having the highest content among the elution ingredients obtained by the GPC method is 95 wt % or more, Mn is 800 or more and 2300 or less, and the ratio of Mw to Mn is 1.0 or more and 1.3 or less. Oil film breakage at the sliding portions of the bushings is suppressed from occurring and the oil film strength is high such that an oil-free chain has a sufficiently long abrasion elongation-resistant life. | 11-18-2010 |
| 474219000 |
Including separate locking member for retaining link-connector in laterally aligned openings through adjacent links | 1 |
| 20110306454 | 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 at least two inner plates which are arranged between the cover plates and the central plate and pivotally interconnect the chain links. The total width of a bunch of plates formed by the central plate, the cover plates, and the inner plates, divided by the total number of plates, which is formed by the sum of the central plate, the cover plates, and the inner plates, is greater than or equal to 1.4 mm. | 12-15-2011 |
| 474208000 |
Including wire member coiled about pivotal axis between links | 1 |
| 20090124445 | CHAINS FOR POWER TRANSMISSION - A power transmission chain includes a plurality of links and a bending-restraining mechanism. The bending-restraining mechanism includes a wire extending in a lengthwise direction along the chain and engaging at least three adjacent joints of the chain. The wire is formed such that it elastically deforms when an inside link rotates around the inner joint in a first direction from a linearly extending state, the wire thereby applying a bending resistance to the inside link during articulation of the chain. In one embodiment, the wire includes at least one curved section clipped around at least a majority of a circumference of at least one joint. In another embodiment, the wire is formed such that a predetermined bias due to a bending deformation of the wire is applied to the inside link when the chain is extended linearly. | 05-14-2009 |
| Entries |
| Document | Title | Date |
|---|
| 20080214343 | Supporting Installation, Conveyor Chain for Such Supporting Installation and Chain Link for Such Conveyor Chain - A chain link for a conveyor chain included in a sup-porting installation, comprising an upper flange ( | 09-04-2008 |
| 20080242462 | SIDE BOW CONVEYOR CHAIN WITH INNER AND OUTER CHAIN LINKS - The present invention relates to a side bow conveyor chain whose respective chain links are interconnected by a chain hinge which is adapted to be pivoted about a first and a second axis, said chain hinge comprising a pivot bolt which is arranged along said first axis, a pivot pin which is arranged along said second axis and through which the pivot bolt extends, and a reception sleeve, which extends along the second axis and in which the pivot pin is pivotable relative to the reception sleeve about said second axis. The reception sleeve is provided with lateral pivot openings which allow the pivot bolt to pass through. The stability of such a chain is improved by the features that inner and outer chain links are provided in alternating succession, that an inner chain link comprises a reception sleeve on either end thereof and at least one inner link plate interconnecting said reception sleeves, that an outer chain link comprises a pivot bolt and a pivot pin on either end thereof and at least two outer link plates interconnecting the same, and that each of the end faces of the at least two outer link plates laterally encompasses a reception sleeve of a neighbouring inner chain link. The inner and outer link plates, which are arranged such that they are set up on edge, extend vertically to the first axis when the chain moves straight ahead. | 10-02-2008 |
| 20080280716 | CHAIN FOR USE IN AUTOMOBILE ENGINE - In a roller chain or a rollerless bushing chain, the surfaces of the pins of the chain are covered with a chromium carbide layer or a vanadium carbide layer, the bushings are formed by cold forging, and the surface roughness of the pins is smaller than the surface roughness of the bushings. | 11-13-2008 |
| 20090029816 | CONVEYOR BELT - A conveyor belt comprising a plurality of successive belt elements ( | 01-29-2009 |
| 20090124444 | Push-Pull Chain and Actuator - A push-pull chain ( | 05-14-2009 |
| 20090247339 | LINK PLATE FOR A BICYCLE CHAIN - A link plate for a bicycle chain comprises a plate having a first end and a second end. The first end includes an installation hole and an elongated opening. The installation hole includes a first aperture and a second aperture connected to the first aperture. A peak portion is defined between the first aperture and the second aperture to prevent movement of a pin from the second aperture to the first aperture easily. The elongated opening is connected to the first aperture to expand the installation hole slightly as the pin moves from the first aperture to the second aperture. | 10-01-2009 |
| 20090275435 | Link Chain Superior in Low Temperature Toughness and Heat Treatment Method of Same - The present invention provides a link chain superior in low temperature toughness comprised of low carbon steel, said link chain characterized in that two-stage high frequency quenching-tempering is performed to give a link chain which has a martensite single phase structure, has an austenite grain size of 9 to 12, further contains in said structure a precipitate comprised of 40 nm or smaller TiC in 90% or more and 80 nm or smaller Ti(C,N) in 10% or less, contains AlN in not more than 0.0003%, and has a −40° C. Charpy impact value of at least 45 J. | 11-05-2009 |
| 20100029426 | MECHANICAL CONNECTION FOR TOOTHED BELTS - Mechanical connection for toothed belts, of the type that are used to be able to open and close a toothed belt that is equipped with reinforcing cables, essentially characterized by the fact that the connection is composed of a preferably metal hinge ( | 02-04-2010 |
| 20100035713 | POWER TRANSMISSION CHAIN AND POWER TRANSMISSION DEVICE - An object of the invention is to provide a power transmission chain in which noises and vibrations are further reduced by modifying a shape of a rolling contact face and an offset amount of a pin which would affect a contact shape of an end face of the pin, and a power transmission device provided with the same. | 02-11-2010 |
| 20100120567 | WEAR-RESISTANT CHAIN - There is provided a wear-resistant chain having a high durability even in severe use environments such as those of a timing chain of an engine even though it is highly efficient and productive. A miniaturizing agent containing silicon is doped in a vanadium cementation process of a base material of steel. Vanadium carbide forming a surface-hardened layer contains a secondary phase composed of an amorphous structure containing silicon within crystal grains and a crystal grain size of the vanadium carbide is miniaturized to 1 μm or less. | 05-13-2010 |
| 20100137088 | TRANSMISSION CHAIN - The invention provides a transmission chain including inner plates, bushings, outer plates, and a cylindrical hollow pin capable of supplying lubricant oil on a outer circumference of the pin across the whole area of the longitudinal direction of the pin when a chain is in operation, even when the chain is tensioned. | 06-03-2010 |
| 20100248879 | LUBRICANT COMPOSITION FOR CHAINS, AND CHAIN - A chain is constructed by alternately connecting a pair of outer link plates connected together with pins and a pair of inner link plates connected together with bushings into which adjacent pins of adjacent pairs of outer link plates are inserted. On the outer and inner surfaces of component parts of the chain, a lubricant composition for chains containing 95% to 80% by mass of a lubricant which is liquid at room temperature and 5% to 20% by mass of a wax which is solid at room temperature and having a consistency of from 60 to 475 and a dropping point of from 60° C. to 120° C., is adhered. | 09-30-2010 |
| 20110118069 | CHAIN FOR A TIMING DRIVE OR AN ASSEMBLY DRIVE OF A DRIVE DEVICE OF A MOTOR VEHICLE - A chain for a timing drive or an assembly drive of a drive device of a motor vehicle, which has a plurality of link packs articulatedly connected to one another and formed from middle links and cover links, with corresponding recesses through which chain pins or chain sleeves are inserted, and a plurality of inner links which connect the link packs to one another. At least the inner links and the middle links have different expansion behavior. | 05-19-2011 |
| 20110183800 | LINK PLATE - A link plate for a transmission chain composed of a plurality of link plates flexibly connected to one another has a guide-contacting edge for direct sliding contact with a chain guide. The guide-contacting edge is composed of a plurality of surface portions in alternating relationship with a plurality of grooves along the direction of chain travel. | 07-28-2011 |
| 20110207569 | TOOTHED CHAIN - The toothed chain employs tracks of inner plates, a track of middle plates and tracks of outer plates. At least one track of inner plates or the track of middle plates has teeth projecting in both a first direction and a second direction and a pair of pin holes. The teeth are mirrored along a centerline of each link plate. The outer plates also contain pin holes, and can have a symmetrical shape such that the lower portion and the upper portion have the same shape. The outer plates are fixed to the two tracks of inner plates and track of middle plates by pins that are fitted into the pin holes of the plates, forming an endless loop. | 08-25-2011 |
| 20110230289 | DOUBLE-SIDED INVERTED TOOTH CHAIN - The double-sided inverted tooth chain has inner link plates and middle link plates, which have teeth projecting in both a first direction and a second direction and a pair of pin holes. Also, the double-sided inverted tooth chain has outer link plates, which also contain pin holes, that are fixed to the inner link plates and the middle link plates by pins fitted into the pin holes of the link plates, forming an endless loop. | 09-22-2011 |
| 20110263368 | SEAL CHAIN - In a seal chain, a seal mechanism comprises a pair of mutually facing seal members, a first seal member of the pair being in contact with an inner plate of the chain, and a second seal member of the pair being in contact with an outer plate of the chain. A pair of resilient annular lips formed on the first seal member are in sliding contact with a surface of the second seal member. Each sealing member has lubricant-filled grooves facing the plate with which it is in contact. | 10-27-2011 |
| 20110263369 | CHAIN - In a chain comprising interconnected link plates at least some of which come into sliding contact with one or more chain guides, at least some of the link plate edges that come into sliding contact with the guides have a convex curvature with different curvatures on the front and rear sides of an apex at an intermediate location. The radius of curvature on the front side of the apex is greater than the radius of curvature on the rear side of the apex. The front and rear curvatures can be circular or cycloidal. Alternatively, one of the front and rear portions can be circular while the other is cycloidal. | 10-27-2011 |
| 20120100946 | CHAIN - To provide a chain having a mechanism for preventing backbend which does not cause any reduction in power transmission efficiency when the chain is operating, which can suppress string vibration in the chain spans, and which is highly durable. A mechanism for preventing backbend is provided, in the chain length direction, with a plurality of spring washer structures ( | 04-26-2012 |
| 20130102428 | FLYER CHAIN - A flyer chain includes outer-, inner-, and intermediate plate-links, and a chain bolt, wherein the outer-, inner-, and intermediate plate-links are arranged in a single-lacing, and wherein a clearance fit is established between the chain bolt and the outer plate-links | 04-25-2013 |
| 20130190121 | ROLLER CHAIN WELDED EXTENDED PIN - A roller chain may include a link having a pair of outer plates connected to a pair of pins, where one of the pins sufficiently extends outside the plate to facilitate connection with a stud and thereby provide connection for attachments. | 07-25-2013 |
| 20130203537 | CHAIN, AND METHOD FOR MANUFACTURING A CHAIN - A chain, in particular a technical chain, preferably a unidimensionally movable chain (plate link chain), more preferably a bolt chain or roller chain, has at least one or more chain links. The at least one chain link is constructed with pretensioning. A manufacturing method includes the following steps: assembling at least one chain link from at least two link plates with link plate holes and two bolts or sleeves. In the non-assembled state, the link plate is not straight, in particular has a curved form, and/or the link plate and the link plate holes have a hole axis, wherein the hole axis is not right-angled, and/or, in the non-assembled state, the bolt or the sleeve is not straight, in particular has a curved form. The chain is assembled from at least two chain links and at least one chain link is manufactured in this way. | 08-08-2013 |
| 20130225345 | Low-Waste Method for Producing High-Performance Chain Link Plates - A method for producing high-performance chain link plates with a link plate pitch T, comprises: clocked feeding of a sheet metal band with a feed length V per cycle, pre-punching at least two chain link plate blanks arranged in succession, re-cutting at least one chain link plate blank, wherein at least the still connected head areas of the chain link plate blanks arranged in succession are excepted from the re-cutting process separating the connected head areas of chain link plate blanks arranged in succession, wherein the feed length V is smaller than 2.1×T and the upper and/or lower side of the head areas connected to each other is/are provided at least partially with a concave run by a punching process substantially adjacent to the end face produced later. A method is also provided for producing a high-performance chain and to correspondingly produced high-performance link plates and high-performance chain. | 08-29-2013 |
| 20140057750 | CHAIN - Inner links of a chain are formed as an integral link unit, each having a pair of connecting pin portions and a pair of plate portions coupling the pair of connecting pin portions, so as to have higher strength and improved durability, whereby the cost of the chain is reduced because of the ease of assembly and a reduction in the number of components. The chain is formed by coupling together link units and pairs of link plates alternately and pivotally in a longitudinal direction of the chain. The link unit is formed by inseparably joining a pair of connecting pin portions and a pair of plate portions at joint parts. | 02-27-2014 |
| 20140141912 | CHAIN AND MANUFACTURING METHOD OF SLIDING MEMBER OF THE CHAIN - A chain includes a plurality of sliding members that moves relative to each other. At least one of sliding members is formed of a martensitic stainless steel, and contains, in a superficial layer thereof, elemental substances of carbon and nitrogen at a range from 0.17 to 0.50 mass % in total, while a precipitation amount of carbide and nitride is 0.05 mass % or less in total. | 05-22-2014 |
| 20140141913 | CHAIN - A chain is provided, whose strength is increased and whose power loss is reduced as a result of reduced friction resistance between link units and link plates. A pair of link plates | 05-22-2014 |
| 20140171246 | LOW-FRICTION ARTICULATED BUSHING CHAIN - An articulated bushing chain comprises inner and outer chain links alternately connected to each other by a chain joint, the inner chain link comprising at least one inner plate and two joint bushings and the outer chain link comprising at least two outer plates and two joint pins interconnecting the same, each chain joint being defined by a joint bushing of the inner chain link and a joint pin of the outer chain link and the chain joint being configured as a rocker joint in which a rocking surface of the joint pin rolls on a convex inner rocker contour of the joint bushing during a movement of the joint. The rocking surface of the joint pin has a rocking radius larger than a limit value calculated according to a given formula. The rocking surface of the joint pin is prevented from slipping on the rocker contour of the joint bushing. | 06-19-2014 |
| 20140329632 | ANTI-BACKBEND CHAIN - An anti-backbend chain comprises a plurality of alternate chain links joined by respective chain hinges, a spring element comprising at least a first spring arm being provided. The spring element rests on a chain hinge and the first spring arm extends to a neighbouring chain hinge and is movably in contact therewith under the biasing force of the spring element, so as to obstruct bending of the anti-backbend chain in a first pivot direction. In addition, an anti-backbend chain drive is provided, in particular a chain drive for driving automated door or gate systems. | 11-06-2014 |
| 20150094180 | BICYCLE CHAIN - A bicycle chain comprises a first outer link plate, a first inner link plate, and a first link pin. The first outer link plate comprises a first end portion, a second end portion, and a first intermediate portion. The first end portion includes a first opening having a first center axis. A first outer-link distance is defined from the first center axis to a first end edge. The first inner link plate comprises a third end portion, a forth end portion, and a second intermediate portion. The third end portion includes a third opening having a third center axis. A first inner-link distance is defined from the third center axis to a third end edge. A second inner-link distance is defined from the third center axis to a third end edge. The first inner-link distance is larger than the second inner-link distance and the first outer-link distance. | 04-02-2015 |
| 20150094181 | BICYCLE CHAIN - A bicycle chain comprises a first inner link plate. The first inner link plate comprises a first end portion, a second end portion, and a first intermediate portion. The first end portion includes a first opening, a first chamfered section, and a first chamfer-free section. The first chamfer-free section is provided in at least a first chamfer-free angular range when viewed from an axial direction parallel to a first center axis. The first chamfer-free angular range is defined from a first circumferential end of the first chamfered section to a first inner-link longitudinal centerline of the first inner link plate. The first chamfer-free angular range is equal to or greater than 30 degrees with respect to the first center axis. | 04-02-2015 |
| 20150094182 | BICYCLE CHAIN - A bicycle chain comprises a first outer link plate. The first outer link plate comprises a first end portion, a second end portion, and a first intermediate portion. The first end portion, the second end portion and the first intermediate portion defines a first outer peripheral edge. The first outer peripheral edge comprises a first end edge, a second end edge, a pair of first intermediate edges, and a first recessed edge. The first end edge extends about the first end portion. The second end edge extends about the second end portion. The pair of first intermediate edges extends along the first intermediate portion between the first end edge and the second end edge. The first recessed edge is provided between the first end edge and one of the first intermediate edges. | 04-02-2015 |
| 20150111676 | CHAIN BEARING, CHAIN PIN, AND CHAIN - At least one member composing a chain bearing, e.g., a pin, includes a surface layer composed of vanadium carbonitride (VCN) coating on a surface of a base material of the one member. An oxide (VO) film having a predetermined thickness is also formed on a surface of the surface layer such that the oxide film is interposed between the surface layer and another member, e.g., a pin hole, composing the bearing. The VO film is suppressed from being formed excessively by the VCN coating even under a severe environment. | 04-23-2015 |
| 20150300450 | PLATE-LINK CHAIN - A plate-link chain, in particular for a continuously variable transmission of a motor vehicle, having plate links which are connected to each other in an articulated manner by pairs of rocker pressure members, each including two rocker pressure members. The plate links and the rocker pressure members are designed in such a way as to bear against each other at respective flat contact surfaces so that the load on plate-link bands of the plate links is nearly torque-free during operation of the plate-link chain. | 10-22-2015 |
| 20160169324 | LINK UNIT AND LINK ASSEMBLY HAVING THE SAME | 06-16-2016 |
