WO2012068695A1 - Conveying device - Google Patents

Abstract

The invention relates to a conveying means (2) for a conveying device (1), which contains a conveying chain (4) formed by individual, identical chain links (5), a conveying member (6) connected to the conveying chain (4) for conveying conveyed material, and rollers (91) for guiding the conveying means (2) in guide rails (52) of a longitudinal guiding device (51). The chain links (5) are connected to each other by means of articulated connections so as to be pivotable about a first axis (A1) and a second axis (A2) in order to form a conveying chain (4). The chain links (5) each have a receptacle (10) at a first end section and a coupling body (15) that engages in the receptacle (10) of an adjacent chain link (5) at a second end section. Furthermore, the chain links (5) each have a center section (31) between the first end and the second end of the chain links, said center section having first connecting elements (22) for connecting the chain links (5) to the conveying member (6).

Description

 CONVEYOR

The invention relates to a conveyor for a conveyor comprising a conveyor chain formed from individual chain links, a conveying chain connected to the conveyor member for conveying conveyed, and rollers for guiding the conveyor in guide rails of a longitudinal guide device, wherein the chain links via articulated joints in each case about a first axis and about a, aligned perpendicular to the first axis second axis are pivotally connected together to form a conveyor chain. The invention further relates to a conveyor with a conveyor according to the invention.

STATE OF THE ART

Chain conveyors, in which a conveying member, such as grippers or plate elements guided by means of a conveyor chain along an orbit by a conveyor, are well known.

Thus, for example, document EP-A-1 975 093 describes a side arc conveyor chain formed of inner chain links and outer chain links. The individual chain links are connected to each other via a kind of gimbal connection and have two mutually perpendicular pivot axes. The outer chain links also have connection points over which support plates can be fastened in a form-fitting manner. The leadership of the conveyor chain happens here on sleeve-shaped projections on the outer chain links, which rest on a guideway. This conveyor chain has the disadvantage that this always still from a variety of different components, such. B. outer chain links and inner chain links is constructed. Moreover, the type of guide is unsatisfactory, since the guide track resting, sleeve-shaped projections do not roll but are guided over the sliding friction along the track. The drive of the chain is done via a drive sprocket, which engages with its teeth in the gaps between the sleeve-shaped projections. The chain links further comprise pivot pins inserted in receiving sleeves. The pivot pins protrude according to an exemplary embodiment, a lower end face of the receiving sleeve with an end portion. The projecting end portions of the pivot pins are now used for guidance during the side arc of the chain. However, the guides and drives described do not satisfy in all respects. Furthermore, with the present conveyor only a flat or with slight gradients extending conveyor track can be realized. Conveyors with steep gradients or even overhead conveyance are not possible due to the leadership.

In the publication US 5,91 1, 305 a modular conveyor system is described with a modular conveyor belt. The conveyor belt itself is constructed of individual joints and has bending sections on the side, which grip around a guide strip. On the underside of the conveyor belt, a toothing is mounted, which engages the drive of the conveyor belt in a drive screw. The leadership of the conveyor belt is also based on sliding friction, which leads to high energy consumption and wear. Although the conveyor system is also modular, but the individual components or links are only suitable for the construction of a specific belt conveyor.

DE 21 18232 describes a conveyor with a conveyor chain, which is constructed of similar chain links. The chain links each have a fork-shaped receptacle, in which engages a coupling piece of an adjacent chain link, which via a trained as a hinge axis rod with the fork-shaped receptacle is connected. The chain here has the exclusive function of a traction device. Other functions are not assigned to the conveyor chain. The conveyor organ, here consisting of plates, is attached to the side leading away from the chain links round rods. The ends of the rods are supported by rollers on rails. This device has the disadvantage that a plurality of round rods is to be provided, which extend over a corresponding length over the entire width of the conveying surface and in addition to the support of the conveyor on the rails also have to carry the conveying member. Furthermore, with the present conveyor only a flat or with slight gradients extending conveyor plane can be realized. Conveying levels with steep gradients or even overhead conveyance are not possible due to the leadership. It is therefore desirable to dispense with such rods as possible.

DE 1 197 388, in turn, describes a load-bearing chain conveyor, which in each case has guided roller sets guided in a common rail. As a result, a comparatively low-friction guidance of the chain is possible. The present embodiment of a roller set with angled aligned wheels is particularly suitable for a suspended execution. Although the construction can obviously also be used for plate belts, in which the load acts from above on the wheels. Due to the close together of the guide wheels, however, a latent instability of the system is always to be expected with increased lateral forces. In addition, this type of roller guide, which has a large contact surface between the moving rollers and the rail, leads to high friction.

Also, EP-A-1 902 978 describes a disc requester with individual carrier plates which are movably connected together. On the carrier plates rollers are attached. The carrier plates thus form the chain links themselves. However, the rollers serve only because of their horizontal orientation of the lateral guide. Vertical forces, for example the weight of the conveyed material, acts in the axial direction of the rollers. Since the bearing surface of the rollers is laterally offset from the axis of rotation, each acting a buckling load on the roller. This can lead to higher wear on the rollers and the guide rails.

PRESENTATION OF THE INVENTION

Object of the present invention is to propose a modular conveyor and an associated conveyor with a chain conveyor, the system should consist of as few different components and should be easy to drive. Furthermore, the funding should be reliable and friction and low-wear movable. The conveyor should also be designed so that it makes possible the greatest possible freedom in terms of the leadership of the conveyor track. Strong gradients of the conveyor track should be just as possible as a change in an overhead conveying or as the use of the conveyor or the conveyor in a hanging conveyor. Furthermore, the individual components of the conveyor should be designed so that with the inventive device different conveyor systems, such. B. gripper conveyor or plate conveyor can be realized.

The object is achieved by the conveyor according to claim 1 and the conveyor according to claim 16. The dependent claims contain preferred developments of the invention. The invention is characterized in that the chain links each have a receptacle at a first end portion and a coupling body engaging in the receptacle of an adjacent chain link at a second end portion. The conveyor chain is preferably constructed with respect to shaping of identical chain links. Preferably, the chain links are structurally identical both in terms of shape and material. Furthermore, the chain links in each case between the first and second end portion, a central portion with first connecting means for non-positive and / or positive connection of the chain links with a conveying member. The chain links are preferably formed in one piece. The conveyor chain can be constructed in terms of shape and material of identical chain links. The links can z. B. made of metal, and z. B. be present as metal castings. Preferably, the chain links each consist partially or completely of a plastic or a reinforced plastic. The chain links may be made as single or multi-component chain links, ie, made of one or more different materials. One-component chain link means that the entire component is made of the same material. However, multi-component chain link means that the chain link from a combination of several, for. B. constructed of two different materials and individual sections or parts of the chain link are made of different materials.

Such a multi-component workpiece can, for. B. be created by means of an injection molding process in several injection molding steps. Furthermore, the one-piece chain link made of a plastic with inserts, such as guide sleeves, pins, ball bearings, complete rollers, roller bodies, axle bodies, etc., which already in the manufacturing process in the body, from z. As plastic, be integrated. The insert are z. B. of metal, such as a steel or aluminum material, or of another material. The chain link is preferably produced in an injection molding process, this process allowing the integration of inserts into production technology. It can z. B. inserts may be provided which are oriented in the longitudinal direction L embedded in the chain link and adapted to absorb tensile forces. The term "structurally identical in terms of shaping" refers in particular to identically designed end sections and middle sections for connecting a conveyor element. With regard to the attachment of rollers as described below, the chain links need not be identical, but they are preferably also.

According to a first embodiment of a hinge connection between two chain links, the receptacle is formed by a yoke with two fork straps. The term "fork strap" should also include fork arms. In the yoke now engages in each case the coupling body of the adjacent chain link. The two adjacent chain links are hingedly connected to each other via a hinge connecting the fork body with the coupling body, which forms the first pivot axis AI. For this purpose, the coupling body is rotatably guided about the pivot axis AI about the pivot axis AI relative to the yoke.

The links can z. B. via a rotatably mounted in the fork lugs and guided by the coupling body hinge connection means, be connected to each other. The joint connection means may, for. B. be kept in recesses in the fork lugs or guided through through holes in the fork lugs. However, the articulation means can also be firmly connected to the fork straps, z. B. be an integral part of these and in particular be designed as projecting pins. The articulation means is rotatably guided relative to the fork lugs and / or relative to the coupling body.

The coupling body preferably forms a receiving sleeve, which receives a, aligned perpendicular to the first pivot axis AI pivot pin. The pivot pin forms the second pivot axis A2. The pivot pin is preferably made of metal, such as. B. of a steel or aluminum material. It is preferably formed circular cylindrical. According to a first embodiment, the articulation means is a hinge pin, which is preferably made of metal, such. B. a steel or aluminum material is made. The pivot pin forms a passage opening through which the hinge pin is guided. The hinge pin can be guided rotatably or non-rotatably in the pivot pin. The pivot pin and hinge pin are preferably perpendicular to each other. The hinge pin is rotatably or non-rotatably guided in through holes or lateral bearing recesses in the two side fork flaps. It is understood that the hinge pin must be rotatably mounted at least relative to the fork lugs or the pivot pin.

According to a second embodiment, the articulation means is an integral part of the articulation pin. Thus, the pivot pin z. B. laterally from its peripheral surface projecting articulated arms, which are rotatably held in the fork lugs.

According to a third embodiment, the articulation means is rotatably connected to the fork straps and z. B. formed as integrally formed, projecting pin. The pins are rotatably mounted with their ends in corresponding recesses in the pivot pin.

According to a further development of the invention, the fork straps and / or the coupling body, in particular its receiving sleeve, form slot-shaped pivot openings through which the articulated connection means are guided or in which the articulated connection means is rotatably mounted. The pivot openings allow a limited pivoting movement of the hinge connection means about the second pivot axis A2. The pivot openings may be formed as passages or as recesses through which the hinge connection means rotatably guided or in which the hinge connection means is rotatably mounted. According to a second embodiment of a joint connection between two chain links, the receptacle has a joint socket. The socket is formed in two parts. The coupling body is designed as a joint head, which is connected via a joint neck with the central portion of the chain link. The condyle may have a spherical shape or basic shape. The receptacle also has an upwards, towards the conveying member, or down from the conveying member away open receiving part, in particular a receiving sleeve, on. The receiving part is z. B. made in one piece with the chain link. The receiving sleeve is preferably formed circular cylindrical. The receiving part forms on that, the receiving opening opposite side of a concave bottom, which corresponds to the first part of the socket. Furthermore, the receiving part forms a guide opening towards the adjacent chain link.

For connecting two adjacent chain links, the condyle is introduced in the direction of the second pivot axis A2 through the Aufnahmeöffhung in the receiving part, wherein the condyle is guided with the joint neck in the guide opening. The guide opening is z. B. oriented in the insertion of the condyle, contrary to the direction of insertion, unilaterally open, slit-shaped opening. After insertion of the condyle in the receiving part, a closure element via a fabric, force and / or positive connection with the chain link, or the receiving part is releasably or non-detachably connected. For this purpose, the closure element z. B. through the receiving opening in the receiving part, z. B. in the receiving sleeve, inserted and fixed. The closure element, which z. B. is designed as a closure cap, forms a concave bottom, which corresponds to the second part of the socket and forms a complete joint socket in the preparation of the connection with the first part. The cap thus limits the movement of the condyle against the insertion direction. In a closure element introduced into the receiving part of the concave bottom is aligned in the insertion direction to the first part of the socket. The trained by the first and second part The socket now encompasses the condyle beyond its equator. The joint neck is guided through the said guide opening when the connection between the closure part and the receiving part is established. The guide opening is wider than the joint neck itself at least in that region in which the joint neck is arranged in the operating position, so that the chain link with the joint head is pivotable about the second pivot axis A2 by a defined angular range.

The articulated connection between the individual chain links is preferably designed such that the chain links can transmit or transmit shock pulses or pressure forces to adjacent chain links via contact surfaces. Preferably, the chain links or the joint connections are designed so that they can transmit both tensile forces and shock pulses or pressure forces each other. As a result, the conveyor chain can be driven both by tensile forces and by compressive forces. This means that the conveyor chain can be pulled as well as pushed. A first contact surface is preferably in each case in the branch of the yoke or in the recess of the joint socket and a second contact surface is in each case mounted on the front of the coupling body or on the joint head. The contact surfaces are preferably formed opposite to each other. the contact surfaces can be convex / concave and bsp. be configured as spherical segments.

The hinge connection, i. the receptacle and the coupling body and the contact surfaces are preferably designed so that in the transmission of compressive forces joint connection means such. B. hinge pin, are relieved. That the compressive forces are transmitted directly from body to body of the chain links and not via the joint connection means.

In one embodiment of the invention, at least one roller is attached to each or all chain links. The roller or rollers the Chain links serve to support the conveyor on a longitudinal guide device and for guiding the conveyor along a predetermined by the longitudinal guide means conveyor track. It can, for. B. only every second, third or fourth chain link each have at least one roller. Preferably, both sides of a chain link per a roller mounted, ie two rollers per chain link, which z. B. are arranged symmetrically to each other. However, the conveyor chain can also be designed so that alternately once on the right and then again on the left side of the conveyor chain rollers are arranged. That is, a first chain link has on its left side and the following, second chain link on its right side, the following, third chain link again on its left side, etc., a roller on. There are also any other arrangements of rollers on the chain links conceivable.

In a particularly preferred embodiment of the invention, a roller is arranged on both sides of the chain link and attached thereto. The rollers each form a support point to a guide rail of a longitudinal guide device. The support points can be support points or support lines or bearing surfaces. The support points of the two rollers are together with the hinge joint on a common line. The support points of the two rollers are in particular together with the geometric center of the joint on a straight line or lie with the first pivot axis AI of the joint on a common line. The geometric center of the joint is z. B. formed by the intersection of the first and second pivot axis AI and A2.

In a further development of the invention, the conveying member comprises a plurality of individual conveying elements, each with second connecting means. The conveying elements enter with their second connecting means and the first connecting means of the central portion of the chain link a non-positive and / or positive and preferably releasable connection. According to a preferred positive locking Connection is the cohesion by a meshing of part contours with or without additional features. The connection is preferably formed by plugging and / or latching z. B. resilient parts, z. B. in undercuts. Disassembly is possible with some effort, but only in preferred directions. The connections may in particular be plug or clip connections.

At least one roller can be attached to each or all conveying elements. The rollers are mounted on the conveyor elements such that they are arranged in the assembled state of the conveyor laterally from the conveyor chain or its chain links. So z. B. also have only every second, third or fourth conveying element in each case at least one roller. Preferably, on both sides of a conveying element, a roller is mounted, i. two rollers per conveyor element, which z. B. are arranged symmetrically to each other. However, the conveying means can also be designed so that alternately once on the right and then again on the left side of the conveying elements, i. are arranged to the right of the conveyor chain or to the left of the conveyor chain, rollers. That a first conveying element has on its left side and the following, second conveying element on its right side, the following, third conveying element again on its left side, etc., a roller on. There are also any other arrangements of rollers on the conveyor elements conceivable.

It can be provided that only the chain links or only the conveyor elements have rollers. However, it can also be provided that both chain links and conveyor elements have rollers.

The conveying elements are preferably also of identical design, preferably with regard to shaping and material, of identical construction, although this is not necessarily also applicable to the attachment of rollers, as already described above. However, the conveying elements are preferably also with regard to possible Casters, which are attached to these, identical. The conveying elements can, for. B. arranged one behind the other to a conveyor member plate elements or plate-shaped support elements, which form a common conveying surface on which the conveyed is required. On its underside of the conveying surface, the second connecting means are designed for connection to the conveyor chain. At their the preceding and subsequent plate member facing sides, the plate member z. B. spaced-apart, tine-like projections for one, in particular in curved regions, meshing engagement in the adjacent, identically formed plate element have. However, the plate elements may also be designed for a, in particular in curved regions, overlapping guide. According to a further embodiment, the plate elements may form first and second end regions with adjacent plate elements, wherein the first end region is concave and the second end region is convex, and a convex end section of a preceding plate element engages in a concave end section of a subsequent plate element or vice versa. The end sections are expediently designed as concave or convex circular arc sections. The plate element may be integrally formed together with the second connecting means and possibly with the tine-like projections.

The conveying element can also be a gripper with corresponding gripper arms and second connecting means, wherein z. B. to each chain link a gripper is attached. The conveying element can, for. B. plastic, in particular be made of a reinforced plastic. The conveying element can be a one- or multi-component workpiece. The conveying element can also be produced by means of an injection molding process, whereby any inserts in the conveying element can also be integrated into the injection molding process in production terms. The conveying elements can therefore be virtually arbitrary design and z. B. also be designed as subjects. Furthermore, the conveying member may also be a continuous band. Among other things, the advantage of the present invention lies in the fact that it is possible to attach different conveying elements to the conveyor chain, which have correspondingly second connecting means corresponding to the conveyor chain. Depending on the conveyor used, the chain can be used both for a hanging conveyor (gripper conveyor) and for a horizontal conveyor (plate conveyor) with corresponding gradients and horizontal guides and curved paths.

The rollers or roller bodies can be connected to the conveyor element or chain link via an adhesive connection, such as welded connection or adhesive connection or via a positive and / or non-positive connection, such as snap connection, plug connection or screw connection.

The at least one roller according to a first embodiment comprises a rotatably mounted on an axle body roller body. The at least one roller is connected via the axle body with the conveyor, wherein the axis of rotation of the roller with the first pivot axis AI an acute angle of less than 45 ° and greater than 10 °, preferably from 20 ° to 40 °, in particular from 25 ° to 35 ° , includes. On the underside of the conveyor element or laterally on the chain link, an axle body is preferably provided for receiving the roller body. The axle body can be formed in one piece with the conveying element or the chain link. If the axle body is attached to the conveyor element, then the end portion receiving the roller body is preferably aligned obliquely downward and inwardly in the direction of the chain link. If the axle body is attached to the chain link, then the end portion receiving the roller body is preferably oriented obliquely upwards and outwards in the direction of the conveying element. The axle can z. B. a parallel to the first pivot axis outwardly directed portion and an adjoining obliquely upwards and downwards have externally aligned receiving portion. The axle bodies are preferably in a plane which is spanned in the non-pivoted position by the first and second pivotal axes AI, A2. According to a second embodiment, the at least one roller is a roller body, which comprises a plurality, preferably two or three, rolling elements, preferably ball bodies, which are arranged in recesses of a Wälzkörperkäfigs, and support each other in the Wälzkörperkäfig and outwardly a support point, for. B. in the form of a support point, a support line or a support surface, for rolling guidance and support of the reel body form. The rolling elements are preferably made of metal. The Wälzkörperkäfig is preferably made of plastic and includes corresponding recesses for receiving and rotatable mounting of the rolling elements, wherein the recesses are configured so that the spherical body can not fall out of the Wälzkörperkäfig. The opening of the recesses to the outside can be smaller than the diameter of the rolling elements, z. B. be the spherical body. The rolling elements are therefore pressed with the production of the roller body with force in the recesses. The Wälzkörperkäfig is attached to the conveyor element or chain link. He can z. B. be attached via a connecting arm to these elements. The Wälzkörperkäfig with or without connecting arm, may be integrally formed, that is integrally formed with the chain link or the conveying elements. However, the Wälzkörperkäfig can also be plugged onto the one-piece connected to the conveyor element or chain link connecting arm. Also, the Wälzkörperkäfig can inserts, z. B. metal, which z. B. receiving elements for the spherical body can be. The Wälzkörperkäfig can, for. B. be made together with the chain link or conveying element in an injection molding process, this method allows the integration of inserts by manufacturing technology.

If the roller body comprises three spherical bodies, then these are preferably arranged in a common plane, wherein two adjacent spherical bodies each have one Include angle of 120 °. This level can z. B. by the first and second pivot axis AI, A2, viewed in the non-pivoted position, are clamped. In the case of two spherical bodies, an angle of 180 ° would be included and, in the case of four spherical bodies, an angle of 90 °. Again, the spherical body can be arranged in a plane as described above.

The above-described second embodiment of roller bodies has the advantage that they roll extremely friction and wear, are simple and inexpensive to manufacture and do not require separate storage.

The chain link may have a drive interface for asymmetric or symmetrical introduction of a driving force in development of the invention. The drive interface is in particular a toothing on the chain link for the purpose of forming an engagement with the toothing of a drive means. A drive interface for asymmetrically initiating a driving force means that the driving force is introduced only from one side onto the chain link. Accordingly, the chain link only on one side, z. B. on the, the connecting side with the conveying member opposite side, corresponding interface means such. As a toothing on. A drive interface for symmetrically initiating a drive force means that the drive force is applied to the link from two opposite sides. Accordingly, the chain link on two opposite sides, z. B. each side and below the connection side to the conveying member or rollers on the conveyor out interface means such. As a toothing on. The symmetrical introduction of force has the advantage that in this no counterforce on the chain link must be exercised, as is the case with an asymmetric introduction of force for the purpose of preventing an evasive movement of the conveyor chain. The toothing is preferably flat on the opposite side. It preferably extends over a surface section on the opposite side. The toothing extends in particular over the middle section and preferably via the middle section and also via the second end section to the coupling body and optionally via the first end section to the receptacle. The toothing may be formed jagged and have transversely to the conveying or longitudinally extending teeth, sprouts or ribs. The toothing serves the positive connections with a drive means for power and motion transmission. The drive means, regardless of how the force is transmitted from the drive means to the conveyor, can be designed both for accelerating and for decelerating the conveyor.

The invention also relates to a conveyor device with a conveying means according to the invention which can be moved along a conveyor track U. The conveyor device comprises a longitudinal guide device for guiding and supporting the conveyor along the conveyor track U, wherein the conveyor means on the rollers in guide rails of the longitudinal guide device is guided and sustainable. The longitudinal guide device preferably comprises two mutually parallel and spaced-apart guide rails or rails for guiding two mutually parallel, and spaced-apart rows of rollers on the conveyor. The two guide rails are preferably detachably connected to one another via cross-connection elements arranged at a distance from one another in the longitudinal direction by means of material, force and / or positive connections. The longitudinal guide device in turn is preferably fastened via the cross-connection elements to a support device.

The adhesive connection can be a welded, soldered or glued connection. The non-positive and positive connection can z. B. over elastic Clamping done, which are hooked in each case with a first end portion in a recess on the transverse connecting element or the guide rail and are snapped resiliently with a second end portion in a recess on the counter element, ie on the guide rail or on the transverse connecting element. The clip may have two bending sections for hooking and snapping to the connection partners. The clip is preferably formed of spring steel.

According to a second type of fastening, an undercut groove, in particular an undercut longitudinal groove, is integrally formed on the outer side of the guide rail on the guide rail. The cross-connection element contains openings arranged on both sides, with which this each of the undercut groove rests. In the undercut groove threaded pieces are introduced. Screws are guided through the apertures on the cross-connection element, engage in the undercut groove and are screwed into the threaded pieces and clamp them in the groove. The cross-connection elements are thereby firmly connected to the guide rail.

In a further development of the invention, the undercut groove on that, the profile opening opposite side is integrally formed on the guide rail. The cross-connecting element surrounds the guide rails with bending sections, which contain the openings for the screw connections, on the outside. The bending sections lie with their openings each of the undercut longitudinal groove.

According to a third type of fastening, the transverse connecting elements each have a plurality of juxtaposed bending sections directed towards the respective guide rail at both ends facing the rails in the longitudinal guiding direction. At least two bending sections on each side are offset from one another transversely to the profile longitudinal direction, and spaced from each other inner and outer bending tabs formed. The guide rail forms a slide-in strip, which is inserted between the inner and outer Biegelasche. The free distance between the outer and inner bending tab in the transverse direction expediently corresponds to the width of the insertion strip or is slightly larger. The guide rail is held over the insertion strip between the inner and outer bending tab and secured against lateral forces. In each case two or more juxtaposed outer or inner bending tabs can be provided between the cross-connection element and the guide rail. Slide-in strips and bending tabs can be z. B. be welded together.

The cross-connection elements may be stamped, milled and / or cut and possibly formed rolled products or metal press profiles. The cross-connection elements are preferably made of a steel or aluminum material. However, they can also be made of plastic or a reinforced plastic. The guide rails may also be stamped, milled and / or cut and possibly formed rolled products or metal press profiles. The guide rails are preferably made of a steel or aluminum material. However, they can also be made of plastic or a reinforced plastic.

The guide rails have a guide profile, in particular a guide channel, for the rollers, which z. B. arcuate in cross section and is open to the rollers out. The guide profile can z. B. have the shape of a circular sector. Particularly in the case of rollers according to the second embodiment, the guide profile preferably forms a guide channel in the form of a circular sector with an angle of greater than 180 ° and less than 360 °, in particular greater than 200 ° and less than 350 °, in the form of a circular sector.

However, the guide rail can also be designed differently in particular when using rollers of the second embodiment. So especially for this embodiment may be provided a guide rail whose running surfaces for the reel body by guidewires of metal or wire-like structure, z. B. consisting of or containing a non-metallic material is formed. The guidewires or wire-like structures are spaced from each other, and preferably arranged parallel to each other. The guidewires or wire-like structures are z. B. held by holding body, which are arranged in the longitudinal direction at a distance from each other. An embodiment of such a guide rail is z. As described in EP 0 870 934 Bl, the content of which is hereby part of the disclosure.

The longitudinal guide devices described allow a three-dimensional design of the conveying path. So z. B. spiral conveying paths with simultaneous left or right turns and positive or negative gradients are provided. The conveyor with conveyor and longitudinal guide device is light, yet stable and low-wear.

Since the conveyor is very light and also low-friction operation, less drive power is required. The drives can therefore be dimensioned correspondingly smaller.

The present conveyor can also be used in food processing, since it is easy to clean. Thanks to the inventive construction, the cleaning agent z. B. proceed unhindered. Furthermore, the inventive conveyor allows a simple and quick installation. Existing conveyors can be easily and inexpensively retrofitted with the conveyor according to the invention or replaced by them.

The present invention is further characterized by the economical production of the individual components. A one-piece, single or multi-component chain link or conveying element can be z. B. in a few steps and with low manufacture manufacturing and logistical effort. The identical chain links as well as preferably also identical conveying elements can be produced with or without inserts in one operation by means of an injection molding process. Further, in this manufacturing process also axle body, arms and / or Wälzkörperkäfige can be made integral with the chain link or conveyor element. In principle, the complete roller body can also be connected as an insert part integrally with the chain link or the conveying element during its manufacture. One or multi-component component is called in this context z. B. a component with inserts made of a different material than the main body. Furthermore, a one- or multi-component component may also be a component made of a plurality of different materials, which is produced as a one-piece component in a plurality of method steps. So the component z. B. in an injection molding in several Spritzgiess- steps made of several plastics, but are made in one piece.

The individual, different materials of such a component may have properties that meet the different functional tasks that have individual areas of a component.

WAYS FOR CARRYING OUT THE INVENTION

In the following, the subject invention will be explained in more detail with reference to embodiments which are illustrated in the accompanying drawings. Each show schematically:

Figure 1 is a perspective view of a conveyor with a conveyor;

 Figure 2 is a perspective view of the conveyor according to Figure 1;

FIG. 3 a is an exploded view of the conveyor according to FIG. 2; Figure 3b .. c perspective views of a chain link of the conveyor of Figure 2 and 3;

 Figure 4 is a perspective view of another embodiment of a

 conveyor;

Figure 5 is an exploded view of the conveyor of Figure 4;

 Figure 6a .. c different views of a first embodiment of a rail guide;

 Figure 7 is a cross-sectional view of another embodiment of a

 Rail guide;

Figure 8 is a cross-sectional view of another embodiment of a

 Rail guide;

 Figure 9a .. c different views of another embodiment of a

 Rail guide;

 Figure 10a .. c different views of a further embodiment of a

 Rail guide;

 Figure 11 is a perspective view of another embodiment of a

 Conveyor with a conveyor;

Figure 12 is an exploded view of the conveyor of Figure 1 1;

Figure 13a..b perspective views of a chain link of the conveyor according to

 FIGS. 11 and 12;

 Figure 14 is a cross-sectional view through a further conveyor with

 Guide rails;

 15a..d cross-sectional views of various embodiments of

 Track rollers and rail profiles.

The reference numerals used in the drawings and their meaning are listed in the list of reference numerals. Basically, the same parts are provided with the same reference numerals in the figures. Figures 2 and 3 show a first embodiment of a conveyor 2 with a conveyor chain 4, which is constructed of chain links 5 of the first embodiment. The chain links 5 are of the same type and each have a first 29 and second end portion 30, which are interconnected via a central portion 31 (see Figure 3a to 3c). The middle section 31 is in each case formed in a box shape with two central hollow chambers 34 and two lateral hollow chambers 35. The first end portion 29 each forms a coupling body 15 and the second end portion 30 each comprise a receptacle 10 for receiving the coupling body 15 of an adjacent chain link 5. The receptacle is formed in the present embodiment by a yoke 10 with two forked flaps I Ia, I Ib. The forked flaps 11a, 11b together form a receiving bay 12 and each contain a passage opening 14, through which a hinge pin 23 is guided. The hinge pin 23 mounted in the yoke 10 forms a first pivot axis AI.

In the yoke 10 now engages each of the coupling body 15 of the adjacent chain link 5 a. The coupling body 15 is formed as a coupling head and forms a receiving sleeve 16, which receives a, in the mounted state perpendicular to the first pivot axis AI aligned, circular cylindrical pivot pin 24. The pivot pin 24 forms the second pivot axis A2. The hinge pin 23 and the pivot pin 24 are preferably made of metal. The pivot pin 24 forms a guided perpendicular to the cylinder axis of the pivot pin 24 through opening 20 through which the hinge pin 23 is guided in the mounted state.

The coupling body 15 also has two passage openings 18 leading through the wall of the receiving sleeve 16, so that the hinge pin 23 in the assembled state through the through holes in the forked flaps 11a, 11b, the through holes 18 in the coupling body 15 and through the passage opening 20th in the pivot pin 24 leads. The passage openings 18 through the wall the receiving sleeve 16 are formed as langlochförrnige pivot openings. The pivot openings 18 allow a limited pivotal movement of the hinge pin about the second pivot axis A2. The length of the opening slot determines the maximum swing radius. Two chain links 5 are each pivotable about a first axis AI and about a second axis A2 relative to one another by the described connection. The pivoting movement about the first axis AI takes place about the hinge pin 23. The pivoting movement about the second axis A2 takes place about the pivot pin 24, wherein the pivot radius about the axis A2, as already mentioned, by the geometry of the slot openings 18 is defined.

At the end of the head-shaped coupling body 15, a projecting first dome-shaped contact surface 17 is formed. The geometry of the first contact surface 17 is opposite to a arranged in the junction of the yoke 10 second, concave contact surface 13. The connection between the individual chain links is designed so that the individual chain links 5 via the contact surfaces 13, 17 shock pulses or pressure forces on the can forward adjacent chain link 5. As a result, the conveyor chain 4 can be driven not only by tensile forces but also by compressive forces. The chain links are for this purpose designed so that the compressive forces are transmitted directly from chain link to chain link, without the connecting elements, such as joint connection means are charged.

On that, the conveying member 6 opposite side of the conveyor chain 4, the chain link 5 each have a two-dimensional toothing 26 in the form of a rib pattern. The ribs are arranged transversely to the conveying direction or longitudinal direction. The toothing 26 extends from the first end portion 29 via the central portion 31 into the second end portion 30. The conveyor chain 4 can now be driven by a drive which engages via a counter toothing in the toothing 26. The conveyor 2 further comprises a conveying member 6 of a plurality of plate-shaped conveying elements 7. The plate-shaped conveying elements 7 have on one side a plurality of spaced, slightly curved, tine-like projections 28 for a meshing engagement in likewise slightly curved, tine-like projections 32 of the adjacent conveyor element 7. The tine-like projections 32 are supported on one side of the conveying element 7 by a guide bottom 33 so that the meshing tine-shaped projections 28 of the adjacent conveying element 7 are optimally guided.

The conveying elements 7 form a conveying surface 27 on the side remote from the conveyor chain 4. On that, the conveyor chain 4 facing side of the conveying element 7 are each second connecting means 37 in the form of two protruding, spaced-apart tab-shaped latching hooks 38, also called plug-in projections arranged. The first connecting means 22 on the chain link 5 are formed as lateral hollow chambers 35 in the central portion 31, which serve as plug-in receptacles. For this purpose, the latching hooks 38 each engage in the lateral hollow chambers 35 and hook on the front side of the chamber wall 36. The latching hooks 38 have spring-elastic properties and are slightly compressed when inserted into the hollow chambers 35, and then relax again on the outlet side to be able to catch the chamber wall 36.

On that, the conveyor chain 4 facing side of the conveying elements 7 pairs of rollers 91 are attached to the conveying elements 7 (see also Figure 3a and 5). The pairwise arrangement derselbigen is such that in the mounted state, a roller 91 per conveyor element 7 is located on both sides of the conveyor chain 4. The roller 91 in each case comprises a roller body 93 rotatably mounted via a ball bearing 95 on an axle body 92 with a rolling surface 94. The roller

91 is connected via the axle body 92 with the conveying element 7. The axle body

92 is formed here, preferably integrally formed on the conveying element 7 stub axle, on which the roller body 93 is fitted over the ball bearing 95. As a special feature of the present invention, the rotation axis R of the roller 91 with the first pivot axis AI includes an acute angle α of less than 45 ° and greater than 10 °, preferably from 20 ° to 40 °, in particular from 25 ° to 35 °. The axes of rotation of the roller body pairing are each directed to the chain link 5 towards each other. Since the axle body 92 is oriented in the direction of the axis of rotation, this also has a corresponding angle. Since the conveying surface is approximately parallel to the first pivot axis AI, the two stub axles 92 each form a point angle with the underside of the conveying element 7. The stub axle 92 of a pair of rollers are each directed towards the chain link 5 towards each other.

1 shows a conveyor 1 with a conveyor 2 according to the figures 2 to 3. The rollers 91 are guided on a longitudinal guide device 51, as shown in detail in Figures 6a to 6c. The longitudinal guide device 51 comprises two guide rails 52 which run parallel to one another and which are detachably connected to one another via transverse connecting elements 53. The cross-connection elements 53 serve the cohesion of the two guide rails 52 and as spacers, in particular to ensure a constant distance between the two guide rails 52. The cross-connection elements 53 have at both ends a respective guide rail directed towards bending section 55, each with an opening 56. The bending portions 55 engage with their end portions each in a, for cross-connecting elements 53 facing second longitudinal groove 58 on the guide rail 52, so that the cross-connecting element 53 is secured against transverse displacement. The guide rail 52 also has one, the second longitudinal groove 58 opposite set arranged first longitudinal groove 57. The brackets 54 also have bending sections. The brackets 54 are now each hooked with a first bending portion in the opening 56 on the bending portion 55 of the cross-connecting element 53 and snapped over the second bending portion in the first longitudinal groove 57 on the guide rail 52. The connection clip 54 preferably has spring-elastic properties for snapping into the first longitudinal groove 57. The rail profiles 52 each have in cross-section arcuate, concave running surfaces 59 in the form of a guide channel, which are open to the rollers 91, ie towards each other. The roller body 93 of the roller 91 runs with its rolling surface 94 on the running surface 59 from. The rollers 91 are for this purpose in the described angle obliquely directed outwards to the guide rails 52 out. The longitudinal guide device 51 is z. B. via screw pin or rivet connections (not shown) which engage through openings 60 in the central portion of the cross-connecting element 53, attached to a support device (not shown).

It should be emphasized at this point that the present embodiment of the conveyor chain 4 is neither bound to the illustrated embodiment of the conveying member 6, nor to the illustrated embodiment of the longitudinal guide device 51.

FIG. 4 shows a modification of a conveying means 132 according to FIGS. 1 to 3, in particular with respect to the conveying member. FIG. 5 shows the conveying means 132 according to FIG. 4 in an exploded view. In the following explanations, therefore, only the differences from the conveyor 2 according to FIGS. 1 to 3 will be discussed, without discussing the congruent features again in detail. In this regard, reference is made to the description of Figure 1 to 3.

The conveying member 133 according to FIGS. 4 and 5 likewise has plate-shaped conveying elements 138, each with a first and a second end section directed towards adjacent conveying elements 138. Unlike the 1 to 3, the first end region of a conveying element 138 is concave and the second end region is convex. A convex end portion of a subsequent conveying element now engages in each case in a concave end portion of a preceding conveying element. The end sections are formed here as concave or convex circular arc sections.

Another essential difference to the conveyor 2 according to Figure 1 to 3 lies in the connection between the conveying member 133 and the conveying elements 138 and the chain link 135. The first connecting means 139 are formed here by a conveyor member 133 towards extended pivot pin 140. The second connecting means 141 are formed by a, on the side facing the conveying chain side of the conveying element 138, annular Anformung which forms a circular receptacle for the end portion of the pivot pin 140. The pivot pin 140 is secured in the circular receptacle against lateral displacement. The conveying element 138 is supported on the pivot pin 140. As a result, the support weight is transmitted via the pivot pin 140 and the hinge pin 23 directly to the rollers. The pivot pin 140 can be releasably or non-detachably connected to the conveying element via a positive-fit, positive-locking and / or frictional connection and secured in this way in particular against relative movements in the longitudinal direction of the pivot pin. The main body of the chain link remains unloaded. Of course, a conveyor element with tine-like projections, as shown in Figures 1 to 3, be connected in the manner shown in Figure 4 and 5 with the conveyor chain. The rollers 91 in turn are formed analogously to Figure 1 to 3 and mounted on the underside of the conveying elements 138. Of course, the end portions of the pivot pins 140 may be secured in the circular receptacle 142 against axial displacement. 7 shows a further embodiment of a Längsfulirungseinrichtung 201, with two parallel and spaced-apart guide rails 202, which are connected via transverse connecting elements 203 detachably or non-detachably connected to each other. The cross-connection elements 203 serve here also the cohesion of the two guide rails 202 and as spacers, in particular to ensure a constant distance between the two guide rails 202. The cross-connection elements 203 are C-shaped and have at both ends to the respective guide rail directed towards bending section 205 , The end portions of the bending portions 205 are parallel to opposite end portions of the guide rails 202. In this way, a flat connection zone 204 is formed, via which the cross-connection elements 203 z. B. are connected via an adhesive connection (eg., Gluing, welding, soldering) and / or a force and / or positive connection (eg., Screw or rivet) with the guide rail 202. Again, the cross-connection elements 203 may consist of a curved rolled product. The cross-connection elements 203 are also here, similar to Figure 6 formed strip-like. The rail profiles 202 each have a cross-sectionally arcuate, concave running surfaces 209 in the form of a guide channel, which are open towards the rollers, ie, which face each other. The roller body of the roller runs with its rolling surface on the tread 209 (not shown). The rail profile 202 may also be a press profile of a steel or aluminum material here. Furthermore, the rail profile may also be a bent or rolled rolled metal product, in particular of a steel or aluminum material. Furthermore, rail profile can also be made of plastic or a reinforced plastic.

FIG. 8 shows a further embodiment of a longitudinal guide device

221, with two parallel and spaced apart guide rails

222, which are interconnected via a cross-connection element 223. The longitudinal guide device 221 consists of two rail profiles 221 and cross-connection element 223 is integrally formed in this embodiment. The longitudinal guide device 221 has a concave shape with the laterally arranged guide rails 222 in the overall impression to the conveyor (not shown). The cross-connecting element 223 is therefore also formed here continuously, this z. B. for reasons of weight or reasons of material savings in longitudinal directions may have breakthroughs which z. B. be produced by punching, milling or cutting. The concave space now provides space for receiving the conveyor (not shown). The two rail profiles 222 each have a cross-sectionally arcuate, concave running surfaces 229 in the form of guide channels, which are open towards the rollers, ie towards each other. The roller body of the roller runs with its rolling surface on the tread 229 (not shown).

The integrally formed longitudinal guide device 221 may be a press profile, z. B. of metal, such as a steel or aluminum material, or a bent or rolled rolled product, also made of metal, for. As a steel or aluminum material to be.

FIGS. 9a to 9c show a further embodiment of a longitudinal guide device 241. The longitudinal guide device 241 comprises two guide rails 242 which run parallel to one another and which are connected to one another via transverse connecting elements 243. The cross-connection elements 243 serve for the cohesion of the two guide rails 242 and as spacers, in particular for ensuring a constant spacing between the two guide rails 242. The transverse connecting elements 243 have bending sections 246, 247 arranged longitudinally next to one another and directed towards the respective guide rail 242 at both ends on. The bending sections are formed as transverse to the profile longitudinal direction staggered inner 246 and outer bending tabs 247. The guide rail 242 forms a slip-in strip 244, which is inserted between the inner and outer bending tabs. The free distance between the outer 247 and inner bending tabs 246 in the transverse direction corresponds to the width of the insertion strip 244, so that the guide rail 242 is clamped over the insertion strip 244 between the inner 246 and outer bending tabs 247 and secured against transverse forces. As shown in the drawings, one or more juxtaposed outer and inner bending tabs 246, 247 may be provided for each connection between a guide profile 242 and a transverse connection element 243. According to a preferred embodiment, as shown here, there are at least two outer or two inner bending tabs 246, 247 per connection. The guide rails 242 are now with their insertion strips 244 with the bending tabs 246, 247 of the cross-connection elements 243 via an adhesive connection, such as gluing or Welding, connected.

The rail profiles 242 each have cross-section arcuate, concave running surfaces 249 in the form of guide channels, which are connected to the rollers, i. open to each other. The roller body of the roller runs with its rolling surface on the tread 249 (not shown). The longitudinal guide means 241 may be fastened to a support device (not shown) via screw-pin or rivet connections (not shown) which engage through apertures 250 in the central portion of the cross-connection member 243.

The longitudinal guide device 241 further comprises connecting pieces 248, via which guide rails 242 are connected to one another in the longitudinal direction. The connecting pieces 248 have a concave shape and are adapted to the outer contour of the guide rails 242. The connector 248 has two spaced apart slots. For connecting two guide rails 242, the connecting piece 248 is now applied with a first slot to a first joining partner (= guide rail) and with the second slot to the second joining partner. Subsequently, the connecting piece via a welded joint with both the first joining partner and with the second Bonding partners connected, wherein the slots are used to create a weld or weld bead.

FIGS. 10a to 10c and FIG. 11 show a further embodiment of a longitudinal guide device 71. The longitudinal guide device 71 comprises two guide rails 72 which run parallel to one another and which are detachably connected to one another via transverse connecting elements 73. The cross-connection elements 73 serve the cohesion of the two guide rails 72 and as a spacer, in particular to ensure a constant distance between the two guide rails 72. The cross-connection elements 73 have at both ends to the respective guide rail 72 directed towards bending section 74, each with an opening 78. The rail profiles 72 each have in cross-section arcuate, concave running surfaces 79, which are in the form of C-shaped guide channels, which represent a circular segment cross-section. The guide channels are to the rollers, ie open towards each other. The roller body of the roller now runs with its rolling surface on the tread 79 from (not shown). On the outside of the guide rail, ie on that, the profile opening opposite side, an undercut longitudinal groove 77 is integrally formed on the guide rail 72. The transverse connecting element 73 surrounds the guide rails 72 with their bending sections 74 on the outside. The bending sections 74 abut each other with their openings 78 of the undercut longitudinal groove 77. Screws 75 are guided through the openings 78, engage in the undercut longitudinal groove 77 and are screwed into threaded pieces 76 which are inserted into the undercut longitudinal groove 77. The bending sections 74 are clamped to the guide rail via the screws and the threaded pieces 76. The longitudinal guide means 71 may be fastened to a support device (not shown) via screw-pin or rivet connections (not shown) which engage through apertures 80 in the central portion of the cross-connection element 73. The embodiments of longitudinal guide devices with guide rails and cross-connection elements shown in FIGS. 6, 7, 8, 9 and 10 are suitable for conveyor means with rollers according to the first and second embodiments. Depending on this, the guide rails, that is, their arcuate cross-sectional profile designed differently.

In Figures 1 1, 12 and 13, a second embodiment of a roller is shown. This is embodied here as a roller body 111, which comprises three ball bodies 113, which are arranged in recesses 14 of a roller body cage 15. The ball body 1 13 are based in the rolling element cage 1 15 from each other and form outwardly a support point for rolling guidance and support of the reel body 1 1 1. The support point to the guide rail is in each case in the region of a ball segment of the spherical body 1 13, which protrudes from the Wälzkörperkäfig 1 15. The Wälzkörperkäfig 1 15 contains corresponding recesses for receiving and rotatable mounting of the spherical body 113, wherein the recesses 1 14 are configured so that the ball body 1 13 can not fall out of the Wälzkörperkäfig 1 15. The ball body 1 13 in the rolling element cage 1 15 are arranged in a, in the non-pivoted position by the two pivot axes AI and A2 spanned planes, wherein two adjacent spherical body 1 13 each enclose an angle of 120 °.

The roller body 1 1 1 are each attached via a rigid arm 112 laterally on the chain link 291. Of course, the roller body described 1 1 1 also on the conveying member or the conveying elements (not shown) z. B. be attached via an arm. The Wälzkörperkäfig 1 15 can be fitted over the arm 1 12 on the chain link 291. However, it is also possible that the Wälzkörperkäfig 115 and possibly the arm 1 12 are integrally formed together with the chain link 291. This is independent of the specific configuration of the roller body and the chain link. In FIGS. 11, 12 and 13, a second embodiment of a chain link 291 is shown with regard to the articulated connection. The receptacle is formed here by a joint socket 293. The socket 293 is formed in two parts. The coupling body is designed as a joint head 292, which is connected via a joint neck 299 with the central portion of the chain link 291. The receiving means comprises a circular cylindrical receiving sleeve 295 which is open towards the conveying member. The receiving sleeve 295 forms a concave bottom on that side opposite the receiving opening 300, which corresponds to the first part of the joint socket 293. In addition, the receiving sleeve 295 forms a slot-like guide opening 296 toward the adjacent chain link 291. For connecting two adjacent chain links 291, the condyle 292 of the one chain link 291 is inserted through the receiving opening 300 of the other chain link 291 in the receiving sleeve 295, wherein the condyle 292 is guided with the joint neck 299 in the slot-like guide opening 296. After insertion of the condyle 292 in the receiving sleeve 295 a cap 294 is also inserted through the receiving opening 300 in the receiving sleeve 295 and a force and / or positive connection, z. B. a snap or clip connection, releasably connected to the receiving sleeve 295. The closure cap 294 forms a concave bottom arranged in the insertion direction, which corresponds to the second part of the joint socket 293 and which limits the movement of the condyle 292 counter to the insertion direction. The joint socket 293 formed by the first and second parts surrounds the joint head 292 beyond its equator 163 after the connection between the closure cap 294 and the receiving sleeve 295 has been established. To create the positive connection, the closure cap 294 has clamping elements 297 projecting from the lateral surface of the closure cap 294. These clamping elements 297 snap when inserting the cap 294 in the receiving sleeve 295, the guide opening 296 narrowing projections 298, so that slipping out of the cap 294 is prevented against the insertion. The conveying elements 6 with second connecting elements 38 and their connection to the conveyor chain shown in FIGS. 1 and 12 essentially correspond to the conveying elements 6 shown in FIGS. 1 to 3, with the exception that the conveying elements according to FIGS. 11 and 12 do not have any connection points for the conveyor belts Have rollers, since they are attached to the chain links of the conveyor chain.

The central portion of the chain links according to Figures 11, 12 and 13 is also box-shaped with two lateral hollow chambers 273, which serve the first connection means 22 in the form of plug-in receptacles. The connector is the same as already in Figure 1 to 3, to which reference is made in this regard. Further, the chain links 291 here, analogous to Figure 1 to 3, a toothing 26, which extends from the first end portion over the central portion to the second end portion with the condyle.

FIG. 14 shows a further embodiment of a chain link 351 with two rollers 353 fastened to it on both sides. In contrast to the embodiments described above, the rollers 353 are not rotatably mounted on the axle body protruding from the chain link 351, but rather by a guide receptacle in FIG Chain link 351 guided axle body 355 rotatably mounted on a bearing unit. The axle body 355, which is located in the axis of rotation R is obliquely guided by the guide receptacles in the chain link 351, so that the axis of rotation R to the first pivot axis AI forms an acute angle according to the description of Figure 3. The roller body 354 is partially received in a receptacle which is traversed by the axle body 355. The roller body 354 protrudes with a segment section from this recess and is guided with this section on a laterally arranged guide rail 352. The hinge pin 23 is in this construction by the axle 355th secured against lateral sliding out in the axial direction on both sides, so that no separate securing means are necessary.

FIGS. 15a to 15d show various embodiments of rail profiles in cross section and the associated roller body of a support roller. The channel of the rail profiles shown is shaped and aligned together with the roller bodies, that the roller body can not be pushed out of the rail profile even under compressive forces. The roller bodies are thereby kept in particular even with a suspended promotion in the rail profile. According to FIG. 15 a, the cross-sectional profile 310 of the guide rail is U-shaped with flank walls which open slightly obliquely outwards. The rolling surface is round, in particular semicircular, formed. Accordingly, the rolling surface of the roller body 31 1 is round, in particular semicircular, formed. According to FIG. 15b, the cross-sectional profile 315 of the guide rail is likewise U-shaped. However, the cross-sectional profile 315 has a flat rolling surface and strongly rounded corners in the transition to the, in a first section perpendicular to the flat rolling surface extending flank walls. Accordingly, the rolling surface of the roller body 316 is also formed with laterally markedly rounded transitions. According to FIG. 15c, the cross-sectional profile 320 of the guide rail is likewise U-shaped. The cross-sectional profile 320 has a flat rolling surface and slightly rounded corners in the transition to the, in a first section perpendicular to the flat rolling surface extending flank walls. Accordingly, the roller body 321 is rectangular in cross-section with slightly rounded, lateral transitions.

According to FIG. 15d, the cross-sectional profile 325 of the guide rail is likewise U-shaped. The cross-sectional profile 325 has a flat rolling surface and slightly rounded corners in the transition to the flank walls. Correspondingly, the roller body 326 is rectangular in cross-section with slightly rounded lateral transitions. The flank walls are slightly open at an angle to the outside.

It should be expressly pointed out at this point that the following variants of specific design aspects on the conveyor can be combined as desired:

- Fixing the rollers on the conveyor or on the chain links;

 - Execution of the rollers according to the first or second embodiment; - Forming the hinge connection according to the first or second embodiment;

 - training of promotion bodies;

 - Training the longitudinal guide device.

Claims

PATENT CLAIMS Conveying means (2) for a conveyor (1), comprising a conveyor chain (4) formed from individual chain links (5), a conveying member (6) connected to the conveyor chain (4) for conveying conveyed goods, and rollers (91) for guiding the conveyor Conveying means (2) in guide rails (52) of a longitudinal guide device (51), wherein the chain links (5) via articulated joints in each case about a first axis (AI) and about a, perpendicular to the first axis (AI) aligned second axis (A2) pivotally with each other are connected to a conveyor chain (4), characterized in that the conveyor chain (4) is preferably composed of structurally identical chain links (5) and the chain links (5) each at a first end portion a receptacle (10) and at a second end portion a, in the receptacle (10) of an adjacent chain link (5) engaging the coupling body (15), and the chain links (5) each between its first and two Iten end a central portion (31) with first connecting means (22) for non-positive and / or positive connection of the chain links (5) with the conveying member (6). Conveying means according to claim 1, characterized in that the receptacle is a yoke (10) with two forked lugs (I Ia, I Ib), in which engages the coupling body (15) of an adjacent chain link (5), and two adjacent chain links (5). in each case via an articulated connection means (23) which rotatably connects the fork lugs (I 1a, Ib) to the coupling body (15) and which forms the first pivot axis (A1), are articulated to one another. Conveying means according to claim 2, characterized in that the coupling body (15) forms a receiving sleeve (16), which receives a, perpendicular to the first pivot axis AI aligned pivot pin (24) which forms the second pivot axis (A2), and the pivot pin (24 ) is connected to the articulation means (23). Conveying means according to claim 1, 2 or 3, characterized in that the fork lugs (I Ia, I Ib) and / or the coupling body (15), in particular its receiving sleeve (16) slot-shaped pivot openings (18) form, in which the articulation means (23 ) and which allow a limited pivoting movement of the articulation means (23) about the second pivot axis (A2). Conveying means according to claim 3 or 4, characterized in that the conveying member (133), or its conveying elements (138) on the conveyor chain (134) is supported, that the weight of the conveying member and the conveyed material on the pivot pin (140) and the Articulated connecting means (23) on the rollers (91) is transferred, so that the main body of the chain link (5) remains unloaded. Conveying means according to claim 1 or 5, characterized in that the coupling body forms a condyle (292) and the receptacle forms a two-part socket (293) which engages around the condyle (292) beyond its equator (163), wherein the socket (292) from a receiving part (295) on the chain link (291) and a closure part (294) is formed, which after insertion of the joint head (292) in the receiving part (295) to form the joint socket (292) with the receiving part (295) is connected. Conveying means according to one of claims 1 to 6, characterized in that at least one roller (97, 1 1 1, 353) is attached to each or all chain links (291, 351). Conveying means according to one of claims 1 to 7, characterized in that the conveying member (6) comprises a plurality of individual conveying elements (7) each with second connecting means (37), and the conveying elements (7) via the second connecting means (37) with the first connecting means (22) on the chain links (5) received a positive and / or positive connection. Conveying means according to claim 8, characterized in that at least one roller (91) is attached to each or all conveying elements (7). Conveying means according to one of claims 7 to 9, characterized in that the at least one roller (91) comprises a rotatably mounted on an axle body (92) roller body (93), and the roller (91) via the axle body (92) with the conveying means (2), wherein the axis of rotation (R) of the roller (91) with the first pivot axis (AI) an acute angle of less than 45 ° and greater than 10 °, preferably from 20 ° to 40 °, in particular from 25 ° to 35 °, including. Conveying means according to one of claims 7 to 9, characterized in that the at least one roller (111) comprises a roller body which comprises a plurality, preferably two or three, rolling elements, preferably ball bodies (113), in recesses (114) of a Wälzkörperkäfigs (115) are arranged, and in the Wälzkörperkäfig (115) mutually support and form outwardly a support point for guiding and supporting the roller body. 12. Conveying means according to one of claims 1 to 11, characterized in that the chain links (5) a drive interface (26), preferably on one of the connecting side with the conveying member (6) opposite the opposite side or on both sides laterally between the connecting side and opposite side to form having an engagement with the drive interface of a drive means. 13. Conveying means according to one of claims 1 to 12, characterized in that the conveying member (6) comprises a plurality of successively arranged plate-shaped support elements (7), which together form a conveying surface. 14. Conveying means according to claim 13, characterized in that the rollers (91) in each case on the conveyor chain (4) facing underside of the plate-shaped support elements (7) are attached. 15. Conveying means according to one of claims 1 to 14, characterized in that the chain links are designed so that shock pulses or compressive forces can be transmitted directly from chain link to chain link, without Connecting elements, such as joint connecting means are loaded by the compressive forces or shock pulses. 16. conveying device (1) with a along a conveyor track U movable conveying means (2) according to one of claims 1 to 15, and with a Longitudinal guide device (51) for guiding the conveyor (2) along the conveyor track (U), wherein the conveyor (2) via the rollers (91) in the longitudinal guide means (51) can be guided. Conveying device according to claim 16, characterized in that the Längsfuhrungseinrichtung (51) comprises two mutually parallel and spaced apart guide rails (52) for guiding two mutually parallel rows of rollers (91) on the conveyor (2). Conveying device according to claim 16 or 17, characterized in that the two guide rails (52) are releasably connected to one another via cross-connection elements (53) by means of non-positive and / or positive connections.