Abstract: A chain drive, especially to a camshaft/camshaft drive for a motor vehicle engine, comprising at least two chain wheels and one drive chain. The gear rims of the at least two chain wheels are arranged to be laterally offset to each other in the axial direction. The chain drive is performed as a multiple chain, wherein each of the offset gear rims of the chain wheels have their own track of the multiple chain due to the lateral displacement of the gear rims. The tip diameters of the offset gear rims and the chain wheels are overlapping. At least one support wheel is provided laterally next to a gear rim of an associated chain wheel, which engages into the empty track of the multiple chain not engaged with the gear rim of the associated chain wheel and is driven together with the associated chain wheel.

Abstract: A method of producing a movable tensioning element of a tensioning device for tensioning flexible drive means, in particular for timing chain drives of internal combustion engines, the tensioning element having at least a tensioning piston and a tensioning rail made of a plastic material, with the tensioning rail being arranged on a tensioning end of the tensioning piston. A correspondingly implemented tensioning element as well as a tensioning device including such a tensioning element is provided. The method of producing the movable tensioning element includes placing the tensioning piston into an injection mold suitable for producing the tensioning rail; injecting the plastic material into the injection mold; encompassing the tensioning piston by the plastic material in certain areas thereof; and letting the plastic material solidify under formation of a positive connection between the tensioning piston and the tensioning rail.

Abstract: A tension or guide rail for a flexible drive means, in particular for a timing chain of an internal combustion engine, with a carrier body and guide track which can be pressed onto the flexible drive means, where the tension or guide rail comprises an installation channel which is independent of the action of the guide track. The carrier body can comprise at least a first and at least a second carrier-body side part, which are permanently joined together and which jointly define the installation channel. Furthermore, an internal combustion engine with a timing drive comprising a flexible drive means and at least one such tension or guide rail, whereby the flexible drive means is in contact with the guide track and an additional component acting interactively with the internal combustion engine extends through the installation channel at least in some regions.

Abstract: The present invention relates to a timing chain drive for an internal combustion engine, comprising a crankshaft sprocket and at least one camshaft sprocket, a chain which is wrapped around these two sprockets, and a tensioning device, said tensioning device comprising a pivotable tensioner blade and a chain tightener which presses said tensioner blade against the chain, the tensioner blade being adapted to be moved, by means of the chain tightener, between a position of minimum tensioning and a position of maximum tensioning, when the timing chain drive is in operation, and being adapted to be moved to a mounting position in the assembled or disassembled condition of the chain tightener, characterized in that, on the side facing the chain tightener, the tensioner blade is provided with a projection which rests on the engine in the mounting position and which is of such a nature that the chain is maintained in a position of safe engagement.

Abstract: A chain drive in an internal combustion engine, with at least two shafts having at least one chain wheel each, wherein at least one chain wheel is formed of a toothed ring and a hub element, which are connected to one another through detachable attachment elements, and the hub element is connected to a shaft by a central attachment system. The abutment surface of the hub with the shaft and the attachment surface between the toothed ring and the hub element are arranged in a manner offset with respect to one another.

Abstract: A tensioner for endless driving elements, such as chains and belts, comprising a tensioning piston provided with locking means, and a locking piston which is adapted to be engaged with and disengaged from the locking means so as to arrest or release the movement of tensioning piston, the locking piston comprising an operating section causing locking piston to move to the arresting position and to the release position, and a locking area used for engagement with the locking means of the tensioning piston and arranged separately from the operating section.

Abstract: An anti back bend driving chain comprising alternating first and second chain links interconnected via a respective chain hinge and pivotable relative to one another about a chairs hinge axis. The driving chain comprises a resiliently lockable and/or unlockable locking means for stiffening or arresting the chain hinges at least temporarily. Also, an anti back bend chain drive used for driving automated gate or door drives and comprising such an anti back bend driving chain and at least one chain wheel.

Abstract: A chain drive, especially to a camshaft/camshaft drive for a motor vehicle engine, comprising at least two chain wheels and one drive chain. The gear rims of the at least two chain wheels are arranged to be laterally offset to each other in the axial direction. The chain drive is performed as a multiple chain, wherein each of the offset gear rims of the chain wheels have their own track of the multiple chain due to the lateral displacement of the gear rims. The tip diameters of the offset gear rims and the chain wheels are overlapping. At least one support wheel is provided laterally next to a gear rim of an associated chain wheel, which engages into the empty track of the multiple chain not engaged with the gear rim of the associated chain wheel and is driven together with the associated chain wheel.

Abstract: A conveyor plate chain with chain links joined together in each case at a joint location and a plate conveyor connected to them consisting of a number of single plates, whereby each joint location is formed by a joint pin of one chain link and a joint sleeve of the adjacent chain link, the joint sleeve accommodating the joint pin, and a single plate is connected at a mounting location to a joint pin, and whereby outer chain links with parallel outer link-plates and parallel-arranged joint pins transverse with respect to the outer link-plates and inner chain links with inner link-plates arranged parallel within the outer link-plates and parallel-arranged joint sleeves transverse with respect to the inner link-plates alternate. The smallest center distance of two mounting locations of two adjacent single plates is larger than the center distance of two adjacent joint pins.

Abstract: An articulated chain comprising chain links which are interconnected by respective chain hinges, a respective hinge pin extending through at least one hinge opening so as to define a chain hinges and a bearing surface of the hinge opening being formed by a sintered material, wherein the hinge pin is produced from an alloy steel and a hinge-pin boundary layer defining the bearing surface is provided with a nitrified surface layer.

Abstract: The present invention relates to a tensioning rail for a traction drive, especially for an internal combustion engine, said tensioning rail comprising a fastening end section with a pivotable fastening means and a tensioning arm area having, at a predetermined distance from said pivotable fastening means, a pressure-application region for contact with a tensioning piston of a tensioning device, at least one second pressure-application region being arranged on the tensioning arm area at a predetermined different distance from said pivotable fastening means.

Abstract: An articulated chain comprising chain links interconnected at chain hinges, with each chain hinge comprises a hinge pin and a hinge bearing surrounding said hinge pin, and the hinge pins are provided with a bonded layer on the outer circumferential surface thereof. The hinge bearings are produced from a sintered material, with the bottom of the borided layer, which faces the base material, being provided with teeth.

Abstract: The invention relates to a chain assembly method for joining a single or multiple link-plate chain having alternating, uncranked outer and inner chain links using prefabricated inner chain links in particular comprising two parallel link plates and parallel hollow pins connecting the latter. This assembly method is to be simplified as compared with production methods used hitherto for link plate chains.

Abstract: It is the intention to improve a conveyor system for supplying small parts to a chain assembling unit, the system comprising a track system transporting the small parts, and a feed device loading the track system with the small parts. To this end the track system comprises at least two loading tracks which are loadable by the feed device with small parts, and at least one feed track which passes the small parts onwards to the chain assembling unit and communicates with at least one corresponding loading track, the number of the feed tracks being smaller than the number of the loading tracks, and the at least one feed track being selectively connectable to at least one other corresponding loading track for conveying the small parts.

Abstract: A conveying system comprising a drive chain and at least one conveying carrier, the conveying system being flexible for the most different goods to be conveyed. The conveying carrier can be brought into detachable engagement with the drive chain, the drive chain comprising chain links arranged in a row and interconnected via a chain joint, a chain joint being formed by a sleeve pertaining to a first chain link and by a bolt passed through the sleeve and pertaining to a second chain link, at least part of the bolts projecting laterally at both sides and a transporting sleeve being arranged on each of the projecting end portions, and the conveying carrier comprising an engaging means which can be brought into detachable engagement at least with both transporting sleeves of a bolt. The invention further relates to a drive chain for such a conveying system.

Abstract: The present invention relates to an articulated chain comprising chain links interconnected at chain hinges, wherein each chain hinge comprises a hinge pin and a hinge bearing surrounding said hinge pin, and wherein the hinge pins are provided with a borided layer on the outer circumferential surface thereof and the hinge bearings are produced from a sintered material, the layer bottom of the borided layer, which faces the base material, being provided with teeth.

Abstract: A method for joining a plate chain link is to be improved, in which at least one plate is connected to at least one bolt by way of a pressing and aligning process. This is achieved by the measures that the bolt is centered in relation to a main chain axis by the simultaneous active application of symmetrical clamping forces to the faces and the least one plate is pushed by a joining lift relative to the bolt into a position symmetrical to the main chain axis. Furthermore, the invention relates to a device for carrying out the method.

Abstract: A link chain having chain links interconnected at respective hinge points by a hinge bolt, at least one bearing bushing arranged on a hinge bolt, at least one roller arranged on said bearing bushing such that it is rotatable about the hinge bolt, and an axial retaining device attached to the hinge bolt and used for axially securing the bearing bushing and the roller. For reducing vibrations in the link chain, a bearing bushing is provided having an axial damping area on at least one end face area thereof, the damping area being formed integrally with the bearing bushing, and the bearing bushing being arranged such that the damping area rests against the axial retaining device.

Abstract: An apron-conveyor chain is to be improved, which comprises chain links interconnected at hinge points and transport plates arranged on at least one side of said chain links and provided with a flat transport surface. The hinge points are provided with at least one sleeve and one bolt, and said transport plates form an apron conveyor in common and are each firmly connected to a bolt included in a hinge point. The apron-conveyor chain is in particular characterized by the feature that each transport plate is firmly connected to two neighbouring bolts of two neighbouring hinge points.

Abstract: The present invention refers to a support device for applying a lateral guiding force in the case of side-arc link chains, comprising a side-arc link chain and a support element moving together with said side-arc link chain and supporting it laterally on the inner side of the chain arc. For providing a support device of the type cited at the start which requires much less constructional outlay and can be produced at a much more moderate price and which, in addition, requires little mounting space, the present invention is so conceived that the support element is defined by an endless traction means which is guided with the aid of deflection means and supported by guide means.