Abstract: A conveyor chain, which can be conveyed without being felled down in a curved conveying section even if the speed of the conveying line is increased is provided. A conveyor chain has a plurality of links (11) arranged in rows. Each of said links includes a top plate (12) having a flat top surface (13) and a hinge portion (14) provided on the top plate. The hinge portion is connected to the hinge portions in the adjacent link positioned on the backside by a pin. Engagement portions (14, 15, 21, 22) with the adjacent links positioned on the front and back sides in said top plate include flat surface portions (27˜30) connected to the flat top surface of the top plate, and the flat surface portions are extended to said adjacent link, positioned on the front or back side with respect to the central axis of the pin.

Abstract: To provide an improved conveyor chain, which can convey even a conveying object having high center of gravity at high speed without felling it down in a curved conveying section. A conveyor chain according to the present invention has a plurality of links (10) arranged in rows. Each of the links includes a top plate (11) having a flat top surface (12) and a hinge portion (13) provided on the top plate pin-connected to a hinge portion of a link positioned on the front side and to a hinge portion positioned on the rear side. Edges (19, 24) adjacent to links positioned on the front and rear sides in the top plate and the hinge portions are composed of curved surfaces. An angle of inclination formed by a flat surface (31) including a tangential line with respect to the edge and the top surface (12) of the top plate (11) is formed to be smaller as it goes from the central axis of said link in its arrangement direction toward a link side.

Abstract: A roller adapted to be rotatably mounted on a bushing of each link assembly of a chain comprises a split roller composed of two roller segments assembled together. The split roller can be easily mounted on the bushing from a radial direction of the bushing even though the bushing is integrally formed with links to form a single link assembly. The link assembly has a one-piece structure and hence is improved in strength and rigidity. The bushing of the link assembly is free from damage or break even when the chain is subjected to a great tensile force.

Abstract: A conveyor chain comprises first and second links connected together articulately. The first links each comprise a link body, an article loading portion, and a pair of overhanging slats. The second links each comprise a link body and an article loading portion. The first and second links are connected together in an alternate manner at an equal pitch. The overhanging slats of each of the first links extend longitudinally of the conveyor chain along both side edges of the associated second link so as to surround the side edges of the second link. Articles easy to fall down can be conveyed and delivered stably in a crossed delivery conveyor.

Abstract: A roller adapted to be rotatably mounted on a bushing of each link assembly of a chain comprises a split roller composed of two roller segments assembled together. The split roller can be easily mounted on the bushing from a radial direction of the bushing even though the bushing is integrally formed with links to form a single link assembly. The link assembly has a one-piece structure and hence is improved in strength and rigidity. The bushing of the link assembly is free from damage or break even when the chain is subjected to a great tensile force.

Abstract: A conveyor chain comprises first and second links connected together articulately. The first links each comprise a link body, an article loading portion, and a pair of overhanging slats. The second links each comprise a link body and an article loading portion. The first and second links are connected together in an alternate manner at an equal pitch. The overhanging slats of each of the first links extend longitudinally of the conveyor chain along both side edges of the associated second link so as to surround the side edges of the second link. Articles easy to fall down can be conveyed and delivered stably in a crossed delivery conveyor.

Abstract: A plastic conveyor chain includes a multiplicity of pinned links each having a flat load-carrying portion formed from a synthetic resin compound containing a polyacetal resin and a silicone-containing lubricant. Preferably, the silicone-containing lubricant contains, with respect to the weight of the synthetic resin compound, 0.5 to 2.0% by weight of silicone oil, 0.5 to 2.0% by weight of potassium titanate fiber, and 0.5 to 2.0% by weight of fatty ester obtained from a monobasic fatty acid and a monohydric alcohol. The thus formed flat load-carrying portion has a low friction coefficient such that the conveyor chain can achieve stable conveyance of articles even when the articles have an unstable bottom configuration.

Abstract: A number of link plates molded of synthetic resin are pivotally connected together by connecting pins to form a molded conveyor particularly suitable for the conveyance of delicate or easy-to-break articles. Each link plate has a plurality of aligned bush holes formed at intervals along a trailing end edge of the link plate, and a plurality of aligned pin holes formed at intervals along a leading end edge of the link plate. Each of the connecting pins is inserted alternately into the pin holes in one link plate and the bush holes in the adjacent link plate to pivotally connect these two link plates. A locking projection formed on the connecting pin to lock the connecting pin in position against detachment is located closer to one end of said connecting pin than to a longitudinal central portion of said connecting pin. The locking projection thus arranged reduces a stroke of hammering required to drive the connecting pin into the pin and bush holes.

Abstract: Slats of a slat conveyor chain each have a multiplicity of drain holes distributed in a desired pattern, and discharge grooves formed in the underside of each slat along sliding surface portions facing guide rails of the slat conveyor chain. A treatment liquid, such as lubricating liquid or washing liquid, supplied onto a load-bearing upper surface of the slat conveyor chain for stable and damage-free conveyance of articles such as PET bottles, cans and so on is smoothly discharged from the discharge grooves through the drain holes without scatting around a frame of the slat conveyor chain. With this discharging of the treatment liquid, bearings and a speed reducer of a chain drive mechanism are protected against corrosion. The slat conveyor chain can, therefore, operate reliably over a long period of use while keeping the surrounding environment against contamination with the treatment liquid.

Abstract: A carrier chain is provided which vibrates less when moving on the curved portion of the guide rail. The carrier chain can carry the article to be carried smoothly and in a more stable state, and can prevent the one-sided wear of the guide rail and the chain units. The carrier chain includes pawls which have an upwardly inclined bottom surface. The pawls are formed on both left and right sides of a base bed portion of chain units which make up the carrier chain. A distance which is relative to a support surface of a guide rail gradually increases from a proximal end side toward an extreme end. When the chain unit moves on a curved portion of the guide rail, and when the chain unit is inclined internally of the curved portion by the tension applied from the adjacent chain units before and behind, the bottom surface of the pawl, which is internal of the curved portion, comes in contact with the support surface in a substantially face-to-face contact state.

Abstract: In a guide and support chain for flexible tubes, noises generated from stoppers and stopper surfaces for maintaining a straight-line attitude, and the rigidity in the case where the straight-line attitude tends to be changed into flexing is improved.A guide and support chain 10 is constituted such that link parts 12 having a pair of left and right side plates 14, 14 are rotatably connected. A straight-line attitude maintaining stopper and a straight-line attitude maintaining stopper surface comprise first stage straight-line attitude maintaining stoppers 21a, 23a and first straight-line attitude maintaining stopper surfaces 21b, 23b, and a second stage straight-line attitude maintaining stopper 22a and straight-line attitude maintaining stopper surfaces 22b. The stoppers 21a, 23a and the stopper surfaces 21b, 23b are provided at a position small in radius, and the stopper 22a and the stopper surface 22b are provided at a position large in radius.

Abstract: A support rail for a table top chain abraded powder or similar substances which intervene between top plates and support rails of a table top chain. A support rail is secured to a conveyor frame by means of threaded screws so as to support both sides at the lower surface of a top plate of a table top chain. The support rail has a plurality of circular concave recesses formed on the sliding surface relative to the top plate in a zigzag pattern for trapping obstacles such as abraded powder, liquid or lubricant on the sliding surface. The concave recess does not penetrate through the surface to the rear face, but serves to accumulate the abraded powder or similar therein.

Abstract: A chain includes resin links 1 and resin link pins which are formed by molding a mixture of polyacetal as resin material and 0.1 to 5.0% by weight of an inorganic antibacterial agent containing silver such as silver phosphate salt glass, which antibacterial agent is dispersed homogeneously in the resin material. The growth of bacteria and fungi on a chain for conveying products such as food and medicines is suppressed.

Abstract: A cable drag chain wherein a plurality of link members each comprising a pair of right and left side plates and connecting plates connecting upper and lower edges, respectively, of the side plates are connected together contiguously in a bendable manner, the connecting plates are to be connected strongly to the side plates. A cable drag chain 10 comprises a plurality of resinous link members 12 connected together contiguously in a bendable manner. Each link member 12 has a pair of right and left side plates 14, 16 and connecting plates 18, 20 which connect transversely upper and lower edges, respectively, of the side plates. A pair of connecting arms 22, 22 are projected at both ends of the connecting plate 18. A connecting arm receptacle portion 24 for receiving the connecting arms 22, 22 therein is formed in the upper edge of each side plate 14 (16) centrally in the longitudinal direction of the cable drag chain.

Abstract: The speed increasing and accumulating conveyor chain of the present invention can convey a conveyed object faster than the running speed of the chain, and keep the conveyed object stopped while continuously running the chain itself. The load roller with a larger diameter and the running roller with a smaller diameter are coaxially and rotatably mounted on the connecting pin, which is secured to the link plate, respectively. The frictional material is mounted on the load surface of the load roller, wherein the frictional material provides the load surface of the load roller with a larger frictional force than that of rotatable surface between the load roller and the running roller.

Abstract: A link assembly for a chain comprising a link portion, a top plate portion having a top surface and a bottom surface made of a predetermined first material, and a plate member made of a different material than the top plate portion and integrally molded to at least the one of the top or bottom surfaces of the top plate portion.

Abstract: An improved adjustable conveyor belt has a plurality of modules having intermeshing link ends extending lengthwise. The modules are connected together by connecting pins extending widthwise through holes formed in the link ends. Each of the modules also has side edges and a slot adjacent to each of its side edges. Thus, slots are provided along the side edges of the belt regardless of the arrangement of the modules. A stop, removably fitted into slots located along the side edges of the belt, prevents widthwise movement of the connecting pins. The stop has a guide mechanism for guiding the stop into the slot, an end portion which extends into the pin insertion hole, an engaging portion which engages a tongue formed in the slot, and a protrusion which snaps into the pin insertion hole. This configuration makes it easy to assemble, add to, and dismantle the conveyor belt, without substantially increasing the size or weight of the assembly.

Abstract: A conveyor chain having a large diameter load-carrying roller and a small diameter running roller coaxially mounted on a connecting pin which alternately connects an inner link plate with an outer link plate, a cover mounted on said link plate of a configuration to cover a gap between adjacent load-carrying rollers and a gap between adjacent running rollers preventing entrance of foreign matter. Included are chain covers covering sideways the inner and outer link plates and travelling rollers of the conveyor chain, and gap covers for preventing entrance of foreign substances which covers the gap between adjacent loading rollers and also covers the gap between adjacent travelling rollers. The gap covers have a projection portion in a position between adjacent loading rollers having a surface which is lower than an outside diameter of the loading rollers and higher than lower surfaces of the chain covers.

Abstract: A flat top conveyor chain comprising a plurality of flat top links, each link having flat top surface for carrying articles. The links are chained by means of connecting pins to form a conveyor chain. The flat top link each are made from a polyacetal resin material having a long chain alkyl ester based lubricant therein.

Abstract: An acceleration accumulating conveyor chain includes connecting pins with outer link plates disposed at opposite ends thereof, bushings clearance fitted with the connecting pins, each having a larger diameter article carrying roller and a smaller diameter running roller coaxially positioned, and inner link plates clearance fitted with the bushings at both ends thereof. The pins contact the bushings along the whole length of the bushings, whereby the bearing pressure per unit area is low. The clearance fit between the bushings and the inner link plates provides "play" permitting the running rollers to positively roll along a supporting rail. A rotation preventing mechanism can be provided at the engaging structures between the bushings and the inner link plates. By preventing rotation of the bushings relative to the inner link plates, noise caused by rotation of the bushings is eliminated.