Abstract: A bicycle chain comprises a first inner link plate comprising a first end portion, a second end portion, and a first intermediate portion. A second inner link plate is spaced apart from the first inner link plate in an axial direction. The second inner link plate comprises a third end portion, a fourth end portion, and a second intermediate portion. The first inner link plate includes a first outer surface and a first inner surface opposite to the first outer surface in the axial direction. The second inner link plate includes a second outer surface and a second inner surface opposite to the second outer surface in the axial direction. The first intermediate portion has an axial recess formed on the first inner surface in the axial direction. The second intermediate portion is free from an axial recess formed on the second inner surface in the axial direction.

Abstract: 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 160 are pivotally coupled to a link unit 101 in the chain 100. A pair of connecting pin portions 110 and a pair of plate portions 140 are inseparably joined at joint parts 150 to form one link unit 101. A stopper portion 123 is provided to the connecting pin portion 110 between a plate portion 140 and a link plate 160 adjacent each other in the width direction to restrict the link plate 160 from coming closer to the plate portion 140.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A gap with a predetermined size is formed between adjacent links arranged in a chain width direction, the size of the gap is set smaller than a maximum warpage amount of the links.

Abstract: A plate-link chain composed of a plurality of plates that form plate sets, which are connected to an adjacent plate set with a hinge joint. At least some of the plates have a stopping means that limits bending of the plate-link chain in a direction opposite to the bend direction the chain undergoes when it passes over and around a pulley or a gear with which the chain comes into contacting engagement when the pulley or gear rotates.

Abstract: The invention proposes a chain for a machine drive, transport of material in a machine or the like, and also a packaging machine comprising one such chain, this chain being better than known link chains at meeting requirements in respect of hygiene conditions during operation and cleaning. This is achieved according to the invention in that flexible chain links (4) are provided between rigid chain links (2), the flexible chain links (4) being fixed to the rigid chain links (2).

Abstract: 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.

Abstract: A pin assembly for a chain of a material handling system includes a pin element and an attachment element. The pin element includes a shaft portion, a head portion at an end of the shaft portion, and an attachment portion at an end of the shaft portion opposite the head portion. The attachment element is configured to attach to the attachment portion of the pin element, and is positionable at the attachment portion and is retainable thereto. The attachment element may comprise a second head portion to define an I-type pin assembly or may comprise a side link and pusher member construction or other element or member. A mounting extension may extend from the attachment portion for mounting an object to the pin assembly after the attachment is attached to the pin element.

Abstract: A chain link overlay and method of improving chain link aesthetics. The chain link overlay is designed to be permanently attached to a chain link. The overlay has an overlay front side with adornment, coloration, art work, or embossment, and also an overlay rear side which is intended to be attached to a chain link. The overlay rear side includes a pin head bore corresponding to each pin head extending from the chain link. When the overlay is attached to the chain link, each pin head extending from the chain link is disposed within a pin head bore. The overlay may be attached to the chain link with adhesive, solder, welding, or any other appropriate means of attachment. The overlay front side may feature artwork, coloration, decoration, and/or embossments, to increase the aesthetic appeal of a chain link to which the chain link overlay has been attached.

Abstract: A preferred embodiment of the invention described herein includes a method and apparatus for providing a seal between at least the outer sidebar and pin bushing of a chain link assembly. The apparatus includes a seal having an outer collar and an inner resilient ring, the outer collar preferably having a mating ridge and the resilient ring being molded onto the collar. This seal also includes outer ribs for providing a sealed contact against the outer sidebar, and may include inner ribs. The seal is part of a chain link assembly positioned between the outer and inner sidebars and surrounding a pin bushing end. A fluid (e.g., grease) may be advantageously placed between the ribs, lubricating the rib—sidebar interface and thereby reducing wear of the ribs.

Abstract: A gap with a predetermined size is formed between adjacent links arranged in a chain width direction, the size of the gap is set smaller than a maximum warpage amount of the links.

Abstract: A longitudinal spring damper link for a power transmission chain is provided. The spring damper link has a metallic body formed of spring steel with two opposing ends and a spring portion contained in a middle section positioned between and interconnecting the ends. Each end has an aperture for receiving a chain roller pin therethrough. The spring damper link is elastically elongatable, the elongation generating a tensile force in the spring portion acting to tension the chain, thereby dampening longitudinal vibrations in the chain.

Abstract: An improved chain, compatible with food grade lubricants, is capable of use in poultry and other meat processing facilities. The chain comprises pairs of side links alternating with center links, and held together with pins. A pair of lubricating wells is located on each side link, proximate the insertion point of the pins. The lubricating well provides lubricating access to the pins, and is capable of retaining lubricant such that lubricant is continuously provided to the pins and their pivot points throughout the operation of the chain.

Abstract: The present invention is an auxiliary chain for drawing assemblies including at least a track formed by multiple contiguous links able to act on a product to draw it. The auxiliary chain is interposed between the relative track and support the auxiliary chain including multiple contiguous links, each link including an idler roll equipped with an axial hole, a join pin and two connection elements each suitable to cooperate with a respective end of the idler roll.

Abstract: A power transmitting silent chain apparatus comprises a silent chain and a sprocket. The silent chain is comprised of a plurality of link plates interconnected by connector pins. Each link plate has a pair of teeth. The sprocket has a plurality of involute teeth for meshing with the link plate teeth. The link plate teeth have inner and outer flanks profiled to satisfy the expression Hi=Ho+Hs, where Hi is a distance from a pitch line of the chain to a pitch line of the inner flanks, Ho is a distance from the chain pitch line to a pitch line of the outer flanks, and Hs is an amplitude of a polygonal motion of the chain.

Abstract: A energy transmission chain for guiding hoses, cables and the like between two connection points includes chain links each having two side elements connected by cross-members. The side elements of adjacent chain links have overlapping sections and are joined to rotate around a pivot in one plane. Energy transmission chains with high lateral stability, which do not sag, particularly when installed in a lateral position, and which are simple and inexpensive to manufacture are frequently desired. This is the case if the moveable consumer connected to the energy transmission chain is traversed in a horizontal plane. Thus, at least one of the respective adjacent side elements (1) has at least one guide groove (7) extending parallel to the plane of rotation. The side element adjacent to this element engages one of the guide grooves over the entire angle of rotation by a guide element (8) extending parallel to the plane of rotation.

Abstract: A roller chain (10) for reducing noise and vibration generated during engagement of the roller chain with a sprocket. The roller chain (10) has a plurality of inner link assemblies, each including a bushing (12) and inner plates (14) connected together and a plurality of outer link assemblies, each including a pin (16) and outer plates (18) connected together with the pins (16) extending through the bushings (12). The roller chain (10) further has rollers (20) respectively fitted on the bushings (12). The rollers (20) are each shorter than the spacing between the opposed inner plates (14). An elastic member (22) is fixed to the inner or outer peripheral surface of each roller (20). The elastic member (22) has projecting portions (24) projecting from both end faces of the roller and facing inside surfaces of the associated inner plates (14) to prevent collision of the roller (20) with the inner plates.

Abstract: A both-side meshing type silent chain is provided which not only permits improvement in durability of a tensioner and a chain guide, but also permits a high-speed and smooth transfer of power. The both-side meshing type silent chain has a high durability and includes a plurality of articular train plates and a plurality of guide train plates. Each of the plurality of articular train plates and the plurality of guide train plates have main teeth for engagement with a sprocket disposed on an inner peripheral side of a chain. The plurality of articular train plates are alternately connected to the plurality of guide train plates with pins. Guide plates, which are guided by side faces of the teeth of the sprocket, are disposed on both outer sides of each of the plurality of guide train plates.

Abstract: A silent chain can prevent the link plates from rupturing and stretching in the longitudinal direction to the chain. The silent chain is formed such that the thickness of both the outer link plates of the joint link row having fewer plates on the connecting pin is made larger than any of thicknesses of the guide plates and the thicknesses of the other link plates.

Abstract: The invention relates to an energy transmission chain for guiding hoses, cables and the like between two connection points. The chain links each have two side elements connected by cross-members. The side elements of adjacent chain links have overlapping sections and are joined to rotate around a pivot in one plane. Energy transmission chains with high lateral stability, which do not sag, particularly when installed in a lateral position, and which are simple and inexpensive to manufacture are frequently desired. This is the case if the moveable consumer connected to the energy transmission chain is traversed in a horizontal plane. Thus, in the energy transmission chains disclosed, at least one of the respective adjacent side elements (1) has at least one guide groove (7) extending parallel to the plane of rotation. The side element adjacent to this element engages one of the guide grooves over the entire angle of rotation by means of a guide element (8) extending parallel to the plane of rotation.

Abstract: A double-sided meshing type silent chain which permits improvement in service life of the shoe of a chain guide for example, also permits a smooth and high-speed transmission of power, and which has a high durability. A plurality of articular train plates and a plurality of guide train plates are alternately connected together with pins, the plates being formed on the front side with main teeth for engagement with a sprocket located on an inner peripheral side of the chain, and guide plates, whose inner faces are abutted against and guided by side faces of the teeth of the sprocket, are disposed on both outer sides of the plural guide train plates.

Abstract: The present invention provides a slat band chain for both straight and curved lines and a sprocket made of synthetic resin which the chain can engage with every other tooth of the sprocket. At least three reinforcement ribs 24a-24c connecting the front curled portions 14 with the rear curled portions 16 are installed. The width B, and the length C, of the rear curled portions in the feeding direction are set to the intermediate value of those conventional slat band chains for straight and curved lines.

Abstract: A transmission chain, particularly for a bicycle, has inner links alternated to outer links. The inner and outer links are constituted by pairs of plates articulated to each other by means of pins. The plates of the inner links have their outer surfaces with a depressed central portion. The plates of the outer links have their inner surfaces with a depressed central portion. The plates of the outer links further have through holes for engagement of the articulation pins with enlarged end mouths opening on the outer surfaces of these plates, which receive the riveted ends of the articulation pins.

Abstract: A chain is a combination of plural links. Each link comprises a first inner chain plate, a second inner chain plate, a first outer chain plate, and a second outer chain plate linked by rollers and pins. Each chain plate includes a straight waist portion disposed between two semi-circular end portions, an inner face formed with an incline extending along an edge thereof, and a blade portion merging with the incline at the straight waist portion. The first outer chain plate includes a transverse dimension greater than that of the second outer chain plate, while the first inner chain plate includes a transverse dimension greater than that of the second inner chain plate.

Abstract: A chain has pairs of inner sheets and pairs of outer sheets. Each sheet has two rings. An annular flange is formed on each ring. An inner surface of an opposite end to a free edge of each annular flange is rounded so as to form a recess. Each annular flange of the outer sheet is received in the recess of one inner sheet. A pin is inserted through the annular flanges of a pair of inner sheets and a pair of outer sheets. A head of the pin is received in the recess of the outer sheet. The other end of the pin is deformed so as to be received in the recess of the other outer sheet.

Abstract: A link chain comprising a series of inner links, outer links and means connecting said inner and outer links for pivotal displacement about a series of transverse axes. The inner links are integral plastic structures of self-lubricating wear-resistant material, including a pair of side plates, a pair of bushing means extending between said plates and concentric with said transverse axes, and an outwardly projecting part at the side margin of each of the side plates extending along the central part of said side plates between the end edges of said adjacent outer links. The end edges of the metallic outer links and the projecting parts of the plastic structure are in the form of an arc of a circle concentric with the adjacent transverse axis. The thickness of the projecting part corresponds to the thickness of said outer links to form a substantially continuous sliding contact area along each side of the link chain.

Abstract: A bicycle drive chain comprises a series of inner and outer link pairs connected in longitudinal alternation thereof, in which each of a first some of the outer link pairs includes a first left side and a first right side outer link plates, only the first right side outer link plate having a cutout or hollow formed in its inward-facing marginal edge, and each of a second some of the outer link pairs includes a second left side and a second right side outer link plates, only the second left side outer link plate having a cutout or hollow formed in its inward-facing marginal edge; and/or each of a first some of the inner link pairs includes a first left side and a first right side inner link plates, only the first right side inner link plate having a cutout or hollow formed in its inward-facing marginal edge, and each of a second some of the inner link pairs includes a second left side and a second right side inner link plates, only the second left side inner link plate having a cutout or hollow formed in its i

Abstract: A length of chain, particularly in the form of an endless track for a tracked vehicle, consists of a plurality of interconnected chain links each of which includes a pair of opposed link parts. Each link part comprises a side portion together with pin portions and/or bush portions which project inwardly of the associated side portions. The pin portions of one link are rotatably received within the bores of corresponding bush portions of the adjacent link.

Abstract: A papermakers fabric formed from a plurality of elongated, generally cylindrical pintles which are positioned in spaced relationship relative to each other and with their axes substantially parallel to define the width of the fabric. A plurality of link members interconnect the several pintles to define the length of the fabric. Each link interconnects two pintles and the configuration of the link can be varied to facilitate the manufacture thereof, to facilitate construction of the fabric, and to facilitate repair of a damaged fabric while the same is on the papermaking machine. Additionally, the permeability of the fabric can be varied by changing the thickness of the links used to form the fabric. Moreover, the links can be made of injection molded plastic for reduced cost.