Canopy frame for a tarpaulin superstructure, as well as shaft part and sled

Abstract

Sliding for connection to a shaft part (81) which is movable along a guide of a longitudinal beam (4) of a canopy frame (10) of a tarpaulin superstructure, comprising a plug-in part (62) which has a plug end (629) for insertion into the shaft part (81), and a guide part (61) which can be displaced along the longitudinal beam (4) parallel to the longitudinal beam (4), wherein the plug-in part (62) and the guide part (61) are manufactured as separate parts, characterized in that the plug-in part (62) and the guide part (61) are connected to each other by connecting rivets.

Description

[0001] The invention relates to a slide for connection to a shaft part, such as a bow, or a convertible top frame of a commercial vehicle body with a corresponding shaft part or bow.

[0002] WO 00 / 12 334 A2 shows a slide for connection to a shaft section, which can be moved along a guide of a longitudinal beam of a tarpaulin frame. The slide comprises a plug-in part with a plug end for insertion into the shaft section. The slide also comprises a guide part that can be moved along the longitudinal beam parallel to it. The plug-in part and the guide part are manufactured as separate components, with the plug-in part being designed as a bent sheet metal part that is coupled to the guide part by means of bends.

[0003] WO 2006 / 105 779 A2 discloses a canopy frame for a tarpaulin superstructure, comprising a plurality of bows movable along lateral longitudinal beams, each with a shaft section having a slide at each of its two ends inserted into the shaft section. Folding devices for the forced folding of a tarpaulin are attached to the slides. Two slides of adjacent bows are each equipped with a guide for the pivotally movable mounting of folding devices designed as folding plates. When the bows are moved relative to each other, a tarpaulin resting on the folding devices and fixed to the bows is lifted to create an opening between the two lateral longitudinal beams.In this design, the slides are manufactured as one-piece injection-molded plastic parts, featuring a plug-in section that can be inserted into the shaft section forming the frame shaft. A guide section is essentially adapted to the contour and, in particular, the width of the longitudinal beam, spanning it and movable along its length. Within the plug-in section, guide elements for folding devices are integrally formed with the slide. The ends of folding devices, designed as folding plates, can be inserted into these guide elements. A disadvantage of the known slides is that the forces acting on the frame are leveraged by the distance to the guide element, and are thus transferred, particularly to the area of ​​the guide element's base plate between the attached support rollers and guide rollers. This leads to an increased risk of breakage of the plastic part in this area.Another disadvantage is that individual components of the plastic part can easily break off due to overloading and / or wear, necessitating a costly replacement of the entire slide. A further disadvantage is that selecting a different shaft geometry or folding mechanism requires a new mold to manufacture the corresponding slide.

[0004] DE 298 21 546 U1 shows a frame with an end-mounted slide that can be moved along a guide of a longitudinal beam of a canopy frame of a tarpaulin superstructure. The slide comprises a guide element that can be moved along the longitudinal beam parallel to the longitudinal beam.

[0005] DE 20 2010 008 583 U1 shows a bow assembly of a canopy frame for a tarpaulin superstructure, in which a plastic slide is attached to a metallic shaft part by means of a rivet.

[0006] DE 198 39 775 A1 discloses a frame for a tarpaulin cover, in which a slide can be inserted into a shaft section to create a bow that can be moved along lateral longitudinal beams. The slide consists of a first part, which substantially overlaps the longitudinal beam, and a second part, which overlaps the first part and has a plug-in end section that can be inserted into the shaft section. The first part is held in edge bends of the second part. Folding devices for lifting the tarpaulin are used between the first and second parts. A disadvantage of the bows is that when the bow is lifted, for example during loading of the tarpaulin cover, the moment acting on the slide can cause the first part to disengage from the edge bend of the second part.Furthermore, the wear-prone folding mechanisms for the tarpaulin cannot be replaced without disassembling the sled.

[0007] DE 20 2006 005 850 U1 teaches a slide for connection to a shaft section, which is displaceable along a guide of a longitudinal beam of a canopy frame of a tarpaulin superstructure, wherein a plug-in part and a guide part are manufactured in one piece from a plastic material, the plug-in part having a plug end designed for insertion into the shaft section, and the guide part being displaceable along the longitudinal beam parallel to the longitudinal beam. The connection of the plug-in part and the guide part is effected by manufacturing them in one piece from plastic in a corresponding mold.

[0008] EP 2 465 718 A1 shows a slide for connection to a shaft section, which can be moved along a guide of a longitudinal beam of a tarpaulin frame. The slide comprises a plug-in part which has a plug end for insertion into the shaft section. The slide further comprises a guide part which can be moved along the longitudinal beam parallel to the longitudinal beam.

[0009] EP 0 459 879 A1 describes a slide for connection to a shaft section, which is movable along a guide of a longitudinal beam of a tarpaulin frame, in which a plate is attached to the shaft section by rivets, the plate overlapping the longitudinal beam. Furthermore, a slide is attached to the shaft section outside the plate, the slide having a support roller and a guide roller. The plate and the slide are manufactured as separate parts that are not connected to each other.

[0010] EP 0 778 169 B1 discloses two embodiments of slides for connection to a shaft section, wherein the slides are displaceable along a guide of a longitudinal beam of a canopy frame of a tarpaulin superstructure. Each slide has a guide element that is displaceable along the longitudinal beam parallel to it and spans the longitudinal beam in the form of an inverted U-shape, formed by bending sheet metal. A saddle-shaped plug-in element is formed on the leg of the U facing the shaft section, which is integrally formed with the guide element by sheet metal bending. The plug-in element and the guide element are manufactured as a single component and are not connected to each other by fasteners.

[0011] The object of the invention is to provide a slide for connection to a shaft part or a canopy frame, with which a higher load-bearing capacity and easier replacement of defective parts is achieved.

[0012] This problem is solved according to the invention by the features according to the independent claim.

[0013] The slide according to the invention for connection to a shaft section is movable along a longitudinal beam, and in particular along a guide track or guide provided on the longitudinal beam, of a tarpaulin frame. As a rule, a slide is provided on both sides of the shaft section, for example to create a frame, but it is also possible to provide the slide only at one end of the shaft section, as is the case, for example, for the suspension rail of a commercial vehicle body, where the side tarpaulin and the hanging suspension rail can be moved along the longitudinal beam.

[0014] The slide comprises a plug-in part with a plug end for insertion into the shaft part, and a guide part that can be moved along the guide of the longitudinal beam parallel to the longitudinal beam. The plug-in part and the guide part are manufactured as separate parts and are connected by connecting rivets to form the body of the slide.

[0015] Here, the guide element is essentially adapted to a contour of the longitudinal beam transverse to its extent, while the plug-in element is essentially designed for connection to the shaft element. Because the plug-in element and the guide element are connected, they form a single component, and the configuration of the slide offers a corresponding variety depending on the available plug-in elements adapted to the respective shaft element and the guide elements adapted to the corresponding longitudinal beams.

[0016] In particular, this advantageously creates a modular system in which a plurality of guide elements adapted to different profiles of longitudinal beams can be combined with a further plurality of plug-in elements adapted to different cross-sections of shaft elements, whereby the area of ​​connection between the plug-in element and the guide element is expediently designed to allow connection by riveting. For example, it can be provided that the corresponding elements of the modular system can be combined with each other at the same points using appropriate fasteners.

[0017] Preferably, the plug-in part is connected to the guide part in such a way that the guide part has reinforcement in a particularly stressed zone. The zone of the guide part spanning the longitudinal beam is particularly stressed, since the bows are frequently pushed upwards when the tarpaulin superstructures are loaded, which can cause large moments to act on this stressed zone. The area of ​​the guide part running between the guide rollers and the support rollers is particularly stressed.

[0018] Preferably, the reinforcement in the claimed zone is formed by superimposed sections of the plug part and the guide part, which, in the manner of superimposed plates that are essentially immovable from one another, ensure a high resistance to bending moments of the type described above introduced into the guide part.

[0019] Advantageously, the section of the plug-in part provided in the claimed zone is formed by an extension of the base of the U-shaped profile of the plug-in end. The extension can be designed in the manner of a tongue projecting from the plug-in part.

[0020] In principle, the section of the plug-in part can be provided on the side of a base plate of the guide part that substantially spans the longitudinal member, while the side of the base plate facing the longitudinal member is preferably provided, so that when the shaft part is lifted, the plug-in part and the guide part are not bent apart, but pressed against each other.

[0021] Advantageously, the guide element is designed as a U-shaped profile with a base plate forming the base of the U. From one end of the base plate, a connecting plate projects substantially perpendicularly towards the plug-in element. Opposite the connecting plate and substantially parallel to it, a limiting plate projects from the other end of the base plate, with one end of the limiting plate, facing away from the base plate, bent into a hook. The hook serves, for example, as a lifting safety device or for attaching and, if necessary, tensioning a tarpaulin.

[0022] Advantageously, the base plate of the guide part is provided with an eye section that projects beyond and extends the connecting plate and is provided with an opening. This eye section covers a base of the plug-in part and / or its extension, and its opening is at least partially aligned with an opening in the plug-in part. In the area of ​​the aligned openings, the guide part and the plug-in part can optionally be connected to each other, or further parts can be connected to the two plug-in parts or guide part.

[0023] The plug-in part has legs that fold vertically at one base of its U-shaped profile. At their ends facing the guide part, these legs are formed as folded sections that are angled approximately 90 degrees apart. These folded sections are connected to the connecting plate, which is essentially perpendicular to the base plate of the guide part. This causes the narrow plug-in part to widen in the area of ​​its connection to the connecting plate.

[0024] Preferably, the plug-in part is folded from a sheet of metal, which is easily accomplished due to its U-shape. The guide part is also preferably folded from a sheet of metal, so that the resulting slide can be easily manufactured from two bent sheet metal parts riveted together.

[0025] According to one aspect, a slide is provided for connection to a shaft section, wherein the slide is displaceable along a guide of a longitudinal beam of a canopy frame of a tarpaulin superstructure. The slide comprises a connection part, preferably designed as a plug-in part, for connection to the shaft section and a guide part that overlaps the longitudinal beam and is displaceable along it. The connection part and the guide part are manufactured as separate parts. The slide is characterized in that the connection part and the guide part are connected to each other by at least one connecting element, e.g., selected from the group consisting of connecting rivets, blind rivets, screws, locking devices, adhesives, and locking pins. The guide part comprises a folded metal sheet, and the connection part is manufactured as a molded plastic part.The connecting part, which is subjected to less stress than the guide part and has fewer narrow sections, is manufactured as a molded plastic part, particularly using injection molding. This allows for a complex geometry to be achieved for the connecting part.

[0026] Furthermore, the connecting part, preferably designed as a plug-in component, can have congruent surfaces and spaces with the guide part, facilitating pre-centering during assembly. This creates a hybrid slide, made of sheet metal in the areas subject to high stress and plastic in the areas subject to less stress. In particular, it is advantageous to manufacture an extension forming a lifting stop and / or guide for folding mechanisms for a tarpaulin as a single piece with the plastic molded part forming the connecting part, thus eliminating the need for separate connection of these parts. It is possible to offer various plastic connecting parts as part of a modular system, which, for example, may have different connecting mechanisms for tarpaulin folding mechanisms, or may even be designed without an extension, and may also be adapted for connection to different shaft dimensions.For the connection between the connecting part and the guide part, a corresponding metal sleeve is preferably embedded in the connecting part for reinforcement. Alternatively, it is possible to injection-mold the guide part together with the connecting part in the mold, whereby the material of the connecting part simultaneously forms the connecting element.

[0027] According to a preferred embodiment, a flat sheet metal strip extending the base of the guide element, resembling a tongue, rests on a surface of the plug-in part and thus overlaps it. The sheet metal strip is preferably arranged in a recess of the plug-in part between the areas that laterally frame the sheet metal strip, so that the top surface of the sheet metal strip and the areas that laterally frame it are essentially at the same level. In a preferred embodiment, the sheet metal strip covers the plug-in part up to its plug end and, particularly preferably, has an angled section that engages the plug end like a hook, thereby achieving a positive-locking partial locking mechanism.Advantageously, the plug-in part has at least one groove in the area of ​​connection of a section folded from the base of the guide part, into which the folded section can be inserted, at least at its edge, thus allowing the plug-in part and guide part to be pre-connected. Preferably, at least one support roller is arranged in the folded section; however, it is also possible to arrange the support roller in a section opposite the folded section, adapting it to the selected longitudinal beam profile. Bores in the tongue align with openings in the connecting part reinforced by sleeves, thus creating a continuous axis for riveting and / or, if the sleeves have an internal thread, screwing. It is possible for the tongue to have steps that are congruent with the top surface of the connecting part; in this case, the connection can also secure a retaining element spanning the tongue to the connecting part.One advantage is that this can also be a riveting to the shaft part.

[0028] According to a preferred embodiment, the connecting or plugging part has two grooves or recesses on its section furthest from the plug end – parallel to the plane of the folding area – into which the folding area, angled from the base of the guide part, can be inserted, at least at its edges. This means that the width of the groove essentially corresponds to the thickness of the folding area. Particularly when the guide part is made of a plastic material, this creates a stable plug connection that avoids play or relative movement, especially in the direction of the axis of the shaft part and in the direction of the longitudinal axis of the longitudinal member, thus providing at least a predominantly positive locking connection. For further centering, it is also possible to design the groove and the folding area not with parallel sides, as is preferred, but with a wedge shape.The tongue allows the guide part to be lifted from the plug-in part only vertically, i.e., along the groove. Therefore, it is advantageously sufficient to rivet the plug-in part and guide part perpendicular to the horizontal plane, i.e., by at least one and preferably two vertical rivets. The pre-connection of the plug-in part and guide part advantageously created by the plug-in connection is thus permanently bonded and can only be broken by separating the riveted connection—for example, to replace a defective part. A particular advantage of this design is that the guide and / or support rollers can already be attached to the guide part before assembly with the plug-in part, thus reducing assembly effort.

[0029] Especially if a defect occurs in the area of ​​the slide, the riveting can be easily destroyed, for example by sawing off the rivet head. This allows the plug-in part to be pulled away from the guide part, which in turn allows the guide part to be lifted off the longitudinal beam. This makes it possible to free a damaged slide from the longitudinal beam or the shaft part without having to remove all the bows from the longitudinal beams, which is not only disproportionately time-consuming but also often requires the use of tools or similar equipment due to the damage in the area of ​​the slide.

[0030] Preferably, the plug-in part and the guide part are connected to each other by connecting rivets such that a first and a second connecting rivet each penetrate connection planes perpendicular to each other, ensuring minimal play and high tensile strength in the directions perpendicular to the connection planes. The second connection plane can also have a connection other than a connecting rivet, for example, by insertion as described above. A second connection plane is advantageously located between the connecting plate of the guide part and the folding sections or grooves of the support part; a first connection plane is advantageously located between the base plate, eye section, or tongue section of the guide part and the extension or top surface of the support part.

[0031] The connecting rivets joining the plug-in part and the guide part expediently also serve to support a support roller or a guide roller. The slide expediently has two support rollers and one guide roller, and the guide part and the plug-in part are riveted together in the area where each of these rollers is supported, so that the riveting simultaneously supports the corresponding roller.

[0032] The guide element preferably has at least one hole in its base for riveting a roller bearing. Preferably, two or three holes are provided in a row transverse to the axis of the shaft part, so that the guide element can be adapted for different guide elements: on the one hand, by attaching a single central guide roller to the middle hole or two guide rollers to the two outer holes; on the other hand, the guide element can also be a plastic sliding element, for example made of plastic, which is riveted to one or more of the holes.

[0033] According to a preferred embodiment, a section of the plug-in part is designed as a flat sheet metal strip in the manner of a tongue, with its flat side abutting a flat side of the base of the guide part, thereby covering at least one-fifth, preferably at least one-quarter, of the extent of the base plate in a direction transverse to the extent of the longitudinal support, i.e., in the imaginary extension of the shaft part. The covered extent is expediently less than two-thirds, preferably less than half, of the extent of the base plate. The width of the sheet metal strip is dimensioned to be narrow enough to be narrower than the diameter of the guide roller, and also narrower than the distance between two adjacent support rollers, so that the support rollers can be mounted close to the base plate without the sheet metal strip reducing the distance between the base plate and the circumference of the support rollers.

[0034] According to one aspect, a slide is provided for connection to a shaft section, which is displaceable along a guide of a longitudinal beam of a tarpaulin frame. The slide comprises a plug-in part having a plug end for insertion into the shaft section and a guide part that is displaceable along the guide of the longitudinal beam parallel to the longitudinal beam, wherein the plug-in part and the guide part are manufactured as separate parts. The slide is characterized in that, at least in a region spaced apart from a base plate of the guide part, a projection is arranged which forms a lifting-prevention barrier with a horizontal leg of the longitudinal beam spanned by the guide part.

[0035] The extension, which secures the carriage against being lifted when the bow is raised, is advantageously fixed to one of the plug-in and guide parts, and preferably to both parts together, for example, at the eye section. A corresponding bore in the body of the extension ensures that, when multiple extensions are provided, each extension is positioned correctly to engage a corresponding horizontal leg of the longitudinal beam. This allows, in particular, the support rollers to be placed from above onto a corresponding guide track of the longitudinal beam. If a carriage needs to be replaced due to damage or defect, the rivet that secures the extension to the plug-in or guide part is destroyed.It is advantageously provided that the extension is shaped in such a way that it can be moved within the plug-in part, so that, after the rivet securing the extension is destroyed, the extension can be moved axially in the plug-in part from the longitudinal member towards the shaft part in the direction of the plug end, releasing the locking mechanism. This makes it possible to design the guide part to be removable from above.

[0036] Advantageously, the extension is made of plastic and projects from a block, preferably also made of plastic, which can be easily attached to the slide. This prevents any noise or sparking during movement along the longitudinal beam, even if the extension comes into contact with a leg of the longitudinal beam when the bow is pushed upwards. Furthermore, by abutting the horizontal leg of the longitudinal beam, the extension relieves the support element of any bending stress.

[0037] Alternatively, the extension can also be fixed to a projection on one of the plug-in and guide parts, in particular having a slot into which the extension is pushed onto the projection. Furthermore, it is also possible, as an alternative, to design the extension as an extension of the axles of the support rollers.

[0038] In practice, plastic sliders have proven disadvantageous because the guide elements for tarpaulin folding mechanisms, such as the folding plates used to lift the tarpaulin of a folding roof, are comparatively frequently damaged. This damage can occur, for example, from rough pushing and collisions between the sliders of the frame or from forceful manipulation of the roof tarpaulin, which then impacts the folding plates and thus the guide elements. This leads to a relatively frequent failure of a slider due to damage to its guide element, requiring a complex modification of the convertible top frame, whereas a damaged folding plate can be easily replaced.

[0039] According to one aspect, it is further provided that a slide for connection to a shaft part is displaceable along a guide of a longitudinal beam of a tarpaulin frame and comprises a plug-in part having a plug end for insertion into the shaft part and a guide part that is displaceable along the guide of the longitudinal beam parallel to the longitudinal beam, wherein the plug-in part and the guide part are manufactured as separate parts, and is characterized in that a guide means for folding means for a tarpaulin, designed as a separate part, is fixed to at least one of the plug-in part and guide part. This allows the guide means to be designed to be particularly robust with regard to the given stress and also to be easily replaced in case of damage.Furthermore, the guide elements can be adapted to the folding elements required by the customer, so that the carriage is, in principle, infinitely variable with regard to the position and design of the guide elements and the folding elements stored therein. A particularly preferred design is that of a universal guide element, allowing the storage of several different folding elements on the same part. This allows the carriage to be adapted to the longitudinal beams according to customer specifications by means of a guide element selected from a modular system. The carriage can also be adapted to the shaft section according to customer specifications by means of a plug-in component selected from a modular system. Finally, the carriage can be adapted to the tarpaulin folding mechanism according to customer specifications by means of a guide element selected from a modular system.This allows the sled to be used almost universally on all existing systems of tarpaulin frames for canvas superstructures, not only as part of a complete kit, but also when individual parts of an existing frame are replaced.

[0040] Preferably, the guide elements are manufactured as extruded parts, especially from aluminium, which allows for the production of high quantities with good dimensional accuracy and low susceptibility to damage.

[0041] It is advantageous to slide the guide elements onto the plug-in part before it is connected to the shaft part and to hold them in place by riveting.

[0042] The guide means have at least one pivot bearing on which a pin of a tarpaulin folding device such as a folding plate can pivot so that the folding plate can stand upright in the pivot bearing to lift the roof tarpaulin or side tarpaulin.

[0043] Preferably, the guide means on both sides of the connection to the plug-in part, and thus on both sides of the plug-in part, each have a rotary bearing, which is preferably designed as a claw facing away from the plug-in part, wherein the axes of the two rotary bearings are parallel.

[0044] Alternatively, the guide elements can also be attached to the upward-facing side of a base plate of the guide element, or to the side of the base plate, or to the upward-facing side of the base plate of the plug-in element. The guide elements can be adapted to the specific part to which they are attached and connected as needed. This results in an extended modular system in which guide elements adapted to the desired tarpaulin folding mechanisms are selected for each of the individually configurable slides and the bows equipped with them, which can have different lengths. In particular, this makes it possible to accommodate most common folding mechanisms, so that a bow can also be replaced from an existing tarpaulin system and adapted to it.

[0045] Advantageously, the sled is provided with means for attaching a tarpaulin, and the tarpaulin can also be attached to the shaft of the frame. Specifically, a hole is provided on the guide section and / or the plug-in section for this purpose, to which the tarpaulin can be attached by riveting. Advantageously, the tarpaulin is attached close to the end of the guide section furthest from the shaft to ensure the most complete possible seal against contamination, rain, and unauthorized access.

[0046] According to one aspect, a shaft part is further created in a tarpaulin frame of a tarpaulin superstructure for a commercial vehicle or a container, which spans a releaseable opening of the tarpaulin frame at least largely transversely to a release direction and has two shaft ends, which is characterized by a slide according to the invention, which can be connected or attached at least to one of the two shaft ends and preferably to both shaft ends.

[0047] The corresponding shaft section is expediently designed as a bow spanning a roof opening of the convertible top frame, which can be moved along the longitudinal beams of the convertible top frame. However, it is also possible to design the shaft section as a sliding or sliding rail spanning a side opening of the convertible top frame, which has a carriage at its upper end that can be moved along the longitudinal beam of the convertible top frame and which is also equipped with a carriage at its underside, or it can be connected to a post base in the usual manner and configured accordingly. It is understood that the design of the carriage can differ between a sliding rail and a bow, but this is not mandatory.In particular, the design may include an identical plug-in section but different guide sections, each adapted to the geometry of the corresponding guide tracks of the longitudinal beam. It is particularly important to consider that the ratio of support rollers to guide rollers changes accordingly when the connection to the longitudinal beam is rotated by 90 degrees. Finally, the shaft section may also be designed as a sliding bracket spanning the loading platform of the convertible top frame. In this case, the shaft section may consist of several shaft sections forming a U-shape, with this U-shape essentially spanning the entire loading area of ​​the commercial vehicle body.The two U-shaped sliding brackets at the ends are then connected to a corresponding guide track in the area of ​​the loading platform and can be moved along this track, so that the loading platform is released after moving the shaft parts designed as sliding brackets.

[0048] Advantageously, the shaft section is manufactured as a metal profile, for example, as a square profile with a square or rectangular cross-section. At a minimum, the shaft ends of the shaft section have a rectangular cross-section, dimensioned such that the plug-in section of the slide's connector can be inserted into the rectangular cross-section of the shaft ends and is held therein in a rotationally secure manner. To prevent axial movement or play between the slide's connector and the shaft end of the shaft section, the shaft end of the shaft section is designed to be plastically deformed against the downwardly open U-shaped cross-section of the connector's plug-in section, ensuring that the two parts are held together immovably. Alternatively, orCumulatively, the shaft ends can be designed with openings that align with openings in the plug part, so that the two parts can be fixed to each other by means of riveting and there is only slight axial play in the axial direction of the shaft part.

[0049] According to a preferred embodiment of the shaft section designed as a bow, the guide element of the slide is fixed at a distance from the shaft end of the shaft section, so that not the entire plug-in part is received in the shaft end of the shaft section, but only the plug-in end. In the area adjoining the plug-in end, the guide element for the folding mechanism, for example, can then be connected to the plug-in part. If the attachments, such as the guide element, are detached from the plug-in part, the part of the plug-in part adjoining the plug-in end can also be temporarily inserted into the shaft end.

[0050] Preferably, a base plate of the guide section of the slide forms an upper end of the slide in the area spanning the longitudinal beam. Particularly if the base plate has a flat surface, the tarpaulin can be tightly attached to the slide without wear on protruding edges. Furthermore, this allows for optimal use of the cargo space.

[0051] According to one aspect, a modular system for a tarpaulin-covered frame for a vehicle such as a truck, a truck trailer, or a container is created, comprising a plurality of longitudinal beams with different profiles and / or lengths, a plurality of shaft sections, a plurality of slides according to the invention, wherein different profiles of guide elements for a slide are adapted to the different profiles of the longitudinal beam, and wherein different profiles of plug-in elements are connected to the shaft ends of the shaft sections, and wherein the length of the shaft sections is adapted to the distance between opposing longitudinal beams. With a manageable number of components that can be combined as required, a multitude of tarpaulin frames or kits of tarpaulin frames are created that can be used in almost all known systems.

[0052] The modular system is further advantageously characterized by a plurality of guide elements for tarpaulin folding devices that can be connected to at least one of the plug-in and guide elements, so that the various known tarpaulin folding devices, such as plastic folding panels, hinged arrangements with lifting bows, and wire folding arrangements, can each be connected to the slide in the desired manner. Accordingly, the modular system preferably also includes a plurality of corresponding tarpaulin folding devices. Preferably, the modular system further includes parts that can be used as projections attachable to the slide and which can be adapted to the corresponding longitudinal beams as lifting aids.

[0053] According to one aspect of the invention, a cover frame for a tarpaulin structure is further proposed, comprising a plurality of shaft parts movable along lateral longitudinal beams, which have a slide at at least one of their two ends, wherein folding means for the forced folding of a tarpaulin are provided in the area of ​​the slides, wherein each pair of adjacent slides each has a guide means for a folding means, wherein the slides are designed according to the invention.

[0054] Advantageously, guide elements are designed and provided as separate parts that can be fixed to the slide. These guide elements advantageously include a guide, which has a substantially cylindrical shape. An end-end thickening of the folding elements, which can be inserted into the guide and is designed, for example, as a pin, is rotatable within the guide, thus providing a pivot axis for raising the tarpaulin folding elements, which are designed, for example, as folding plates. This allows the folding plates, and thus the tarpaulin resting on them, to be folded upwards when adjacent bows, slides, or shaft parts are pushed together, and the tarpaulin is raised accordingly in the area between two adjacent bows.

[0055] Preferably, the carriage is provided with horizontally mounted support rollers and at least one vertically mounted guide roller, preferably with two support rollers being provided that transfer the load of the carriage and the parts connected to or bearing on it into the longitudinal beam, while the guide roller essentially ensures that the support rollers maintain their track. In the case of a roof rafter, the bearing axes of the support rollers are arranged essentially parallel to the extension of the shaft part of the rafter; in the case of a truss, the bearing axes of the support rollers of the truss are preferably arranged essentially perpendicular to the axis of the shaft part of the sliding truss. However, it is also possible to connect the support rollers of a sliding truss to a longitudinal beam at the lower end of the sliding truss.

[0056] In this case, the support roller or the guide roller is preferably connected to both the guide part and the plug part of the slide, so that the rivet connection required for the connection of the two mentioned parts can also serve as a bearing of the roller or pass through a bearing of the roller.

[0057] According to a preferred embodiment of the canopy frame, the folding means, when pivoted upwards, have a movement component extending away from the longitudinal bisector of the tarpaulin structure, so that the tarpaulin is moved a short distance away from the longitudinal bisector simultaneously with the pivoting upwards. Advantageously, the folding means have a central lifting element, which preferably has a predetermined bending line connected to outer folding element sections and can, for example, be placed on the longitudinal beam. When the shaft sections are pushed together, the central lifting element forms a contact surface for lifting a roof tarpaulin.

[0058] The longitudinal beams are expediently manufactured by extrusion, preferably from aluminum, or alternatively from steel. They are supported against the loading platform by stanchions and / or corner stanchions, but can also be arranged within the loading platform area depending on the application, for example in the case of a sliding roof.

[0059] Further advantages, properties, features and further developments of the claimed invention will become apparent from the following description of a preferred embodiment and from the dependent claims.

[0060] The invention is explained in more detail below with reference to the accompanying drawings and a preferred embodiment. Fig. Figure 1 shows a perspective schematic view of a preferred embodiment of a tarpaulin frame according to the invention for a tarpaulin superstructure for a semi-trailer. Fig. Figure 2 shows a cross-section through a longitudinal member of the convertible top frame according to Fig. 1 with a preferred embodiment of a slide according to the invention resting thereon. Fig. 3 shows the sled from Fig. 2 in a view from below. Fig. 4 shows the sled from Fig. 2, which is connected to a shaft part, together with elements of a modular system for the production of different sleds. Fig. Figure 5 shows an exploded view of the slide. Fig. 2. Fig. Figure 6 shows another exploded view of the sled from Fig. 2. Fig. Figure 7 shows a perspective view from above of another preferred embodiment of a slide that can be connected to a shaft part and runs along the longitudinal beam of the convertible top frame according to Fig. 1 or Fig. 2 is movable. Fig. Figure 8 shows a perspective view from below of the sled. Fig. 7. Fig. Figure 9 shows a partially exploded view of the sled from Fig. 7 and Fig. 8. Fig. Figure 10 shows a perspective view from above of yet another preferred embodiment of a slide which can be connected to a shaft part and along the longitudinal beam of the convertible top frame according to Fig. 1 or Fig. 2 is movable. Fig. Figure 11 shows a perspective view from below of the sled. Fig. 10. Fig. Figure 12 shows a partially exploded view of the sled from Fig. 10 and Fig. 11.

[0061] With reference to Fig. 1. First, the basic structure of a preferred tarpaulin frame for a tarpaulin body, which in this case covers a semi-trailer, is described. The tarpaulin frame, designated 10 in general, has a loading platform 11 from which four fixed corner posts 1 project upright at the corners of the loading platform 11, wherein a longitudinal beam 4, manufactured as an extruded aluminum profile, is supported on each of the corner posts 1 along the longitudinal edge of the tarpaulin frame 10, wherein the longitudinal beam 4 can also be composed of several sections arranged one behind the other.

[0062] Between the two corner posts 1 arranged on one side or the other side of the longitudinal bisector of the convertible top frame 10, one or more sliding posts 2 are arranged, of which in Fig. 1. Only one is shown on each side. The sliding mechanism 2 has a (in Fig. 1 (not shown) a slide with which it can be moved along a corresponding guide track of the longitudinal beam 4 and is held against it. In order to be able to introduce forces from the longitudinal beam 4 into a frame area surrounding the loading platform 11, the sliding stake 2 has a connecting profile at its lower end which can be connected to a stake foot arranged on a frame 3 of the loading platform 11, whereby the sliding stake 2 is raised a short distance when connected to the stake foot, and thus comes into support from below against the longitudinal beam 4.

[0063] Thus, the longitudinal beam 4 is supported against the loading platform 11 via the corner posts 1 and the sliding posts 2. A side tarpaulin made of convertible top fabric, covering the lateral boundary wall of the convertible top frame 10, is also suspended from the longitudinal beam 4. This tarpaulin can be lashed down in the area of ​​the loading platform 11. When the lashing is released, it exposes a loading opening and – if necessary together with the released sliding post 2 – can be moved along a corresponding guide in the longitudinal beam 4.

[0064] The area located in the direction of travel or in the longitudinal direction of the canopy frame 10 between the two corner posts 1 opposite each other with respect to the longitudinal bisector is limited by a closed wall 12, while in the rear area 13 located between the two opposite corner posts 1 two doors hinged to the corner posts 1 are provided, which allow loading from the rear.

[0065] The roof area between the two opposing longitudinal beams 4 is closed by a sliding cover comprising a tarpaulin 5, which is fixed to the bows 8 bridging the two longitudinal beams 4. Each bow 8 has a slide 6 at its end, allowing it to be moved along a guide track on the longitudinal beams 4. Between adjacent bows 8 and their slides 6, tarpaulin folding aids are provided. When adjacent bows 8 are pushed together, these aids are erected in the shape of an inverted V. The point of the inverted V raises the tarpaulin 5 and prevents it from falling down between the bows 8. The tarpaulin 5 is tensioned over a portal mechanism 19 that pivots on the rearmost bow 8 and is released by raising the portal mechanism 19 to prevent the bows 8 from shifting out of their position. Fig. To allow the position shown in point 1.

[0066] In Fig. Figure 2 shows a section through a longitudinal beam 4, on which a slide 6 is depicted without the attached shaft portion of the bow 8. The longitudinal beam 4 has a horizontal leg 41 on which the slide 6 is supported, and a vertical leg 42 extending downwards at a substantially right angle from this leg, on which the side panel and the sliding rail 2 can be mounted. An upper support roller of a slide of the sliding rail 2 is received in a chamber 42a with a central slot facing downwards, while the support rollers attached to the upper end of the side panel, which is therefore often referred to as a curtain, can be moved in a corresponding guide track 42b.

[0067] The horizontal leg 41 has a chamber 41a approximately in the middle, which has a U-shaped profile, wherein the leg of the U pointing towards the longitudinal bisector of the vehicle body defines a C-shaped chamber 41b open towards the longitudinal bisector. Extending from the lower leg and lowered by one step, a guide track 41c is formed on the horizontal leg 41, defining the extremity pointing towards the longitudinal bisector.

[0068] The construction of the sled 6 can be described with reference to Fig. 5 and Fig. 6 can be explained particularly well. The slide 6 comprises a guide part 61 made of a folded, stamped sheet metal, which essentially spans the width of the longitudinal beam 4 transversely to its extent.Here, the guide element 6 has a base plate 611 approximately corresponding to the width of the longitudinal beam 4, from which a limiting plate 612 projects downwards at an angle of 90 degrees on the side of the convertible top frame 10 facing away from the longitudinal bisector, wherein a central end section of the end of the limiting plate 612 facing away from the base plate 611 is formed as an eye 612a, while the two sections provided on either side of the eye 612a are bent at a right angle to form hooks 612b, which engage a web 41d of the horizontal leg 41 of the longitudinal beam 4 extending away from the longitudinal bisector and thus partly form an anti-lifting device, but above all ensure that the longitudinal beam 4 is largely protected from contamination by the corresponding guide element 61 of the slide 6.On the side of the base plate 611 opposite the boundary plate 612, two tab sections 613 are bent at a 90-degree angle to the base plate 611 such that they run parallel to the boundary plate 612. The tab sections 613 form a corresponding boundary plate, such that the inwardly facing side of the base plate 611 forms the base of a U-shaped profile, and the boundary plate 612 and the connecting plate 613 form the legs of the U-shaped profile. An eye section 614, which extends the base plate 611 and lies coplanar with it, is formed between the two tabs 613. This eye section projects beyond the end face of the tabs 613 that faces the longitudinal bisector of the canopy frame 10. Both the tabs 613 and the eye section 614 are equipped with a circular bore 613a and 614a, respectively.

[0069] The slide 6 further comprises a plug-in part 62, which is folded from a sheet of steel and has a large, inverted U-shaped cross-section, with a base plate 621 and two legs 622 and 623 extending perpendicularly from it. At their ends facing the guide part 61, the two legs 622 and 623 each have a folded section 624 and 625, respectively, folded away from each other by approximately 90 degrees, in which a bore 624a and 625a, respectively, is provided, which are aligned with the bores 613a in the connecting plate 613 of the guide part 61. The base plate 621 is extended by a tongue 626 which runs coplanar with the base plate 621, projects beyond the frontal surface of the two eye sections 624, 625, and which has a bore 626a at its outer end, which (with a Fig. The bore 611a in the base plate 611 of the guide part 61 (not shown) is aligned with the bore 614a in the base plate 621 of the plug-in part 62, which is provided at the level of the folding sections 624, 625. The bore 621a in the base plate 621 of the plug-in part 62 is aligned with the bore 614a of the eye section 614 of the guide part 61. The end of the plug-in part 62 facing away from the tongue 626 forms a plug end 629, which can be inserted into a correspondingly shaped receptacle in the shaft end of a shaft part and secured there in order to form a corresponding bow from the shaft part with the slide 6.

[0070] One can recognize in Fig. 5, that the tongue 626 is pushed under the side of the base plate 611 of the guide part 61 facing the longitudinal member 4, and that the end face of the connecting plate 613 facing the plug-in part 62 and the end faces of the folding sections 624, 625 facing the guide part 61 come into contact with each other. In this position, the bores 611a / 626a, 614a / 621a are aligned with a substantially vertical axis, and the bores 613a / 625a and 613a / 624a are aligned with a substantially horizontal axis running transversely to the longitudinal axis of the convertible top frame 10, i.e., parallel to the extension of the longitudinal members 4. The guide part 61 is connected to the plug part 62 by riveting in the provided eye pairs 611a / 626a, 613a / 624a and 613a / 625a, the connecting rivet simultaneously attaching the bearings of guide or support rollers to the aforementioned pairs of bores.A guide roller 63a is attached to the eye pair 611a / 626a by riveting, while a support roller 63b, 63c is connected to the rivets of the eye pairs 613a / 624a and 613a / 625a respectively.

[0071] One can recognize in Fig. 5 further, that a plastic block 64 can be inserted into the U-shaped profile of the plug-in part 62 from the side opposite the base plate 621, the plastic block 64 having a projection 641 which is designed to engage between the two support rollers 63b, 63c and beyond their end face into the part of the longitudinal beam 4 engaged by the guide part 61, such that the projection 641 penetrates under the horizontal leg that upperly delimits the chamber 41b. This ensures that the projection 641 serves as a lifting stop for the slide 6, since when the slide 6 is lifted, the upper end face of the projection 641 abuts the lower edge of the upper leg of the chamber 41b, thus preventing further lifting of the slide 6.

[0072] The plastic block 64 has two bores 64a, 64b, which are connected to bore 621a / 614a and another (in Fig. The 5 (not shown) bore 621 b in the base plate 621 of the plug-in part 62 are aligned. Two rivet counterparts 642 are inserted into an elongated recess 643 of the plastic block 64, so that the plastic block 64 is held immovably in the U-shaped profile of the plug-in part 62 by means of corresponding rivets 644. This type of arrangement of the plastic block 64 with the extension 641 on the plug-in part 62 has the particular advantage that in certain cases where the slide 6 has to be lifted off the longitudinal beam 4, whether to carry out a repair or to allow access, for example to extinguish a burning load, it is possible to saw off the rivets 644 or to mill off the heads of the rivets 644, whereby the shanks of the rivets 644 fall a short distance into the recess 643 and thus release the locking against the holes 621a, 621b in the base plate 621.This makes it possible to move the plastic block 64 in the channel formed by the base plate 621 and the legs 622, 623 towards the end of the plug 629 facing away from the guide part 61, so that the extension 641 disengages from the leg of chamber 41b that prevents it from being lifted out. Furthermore, if the extension 641 is damaged or sheared off, the plastic block 64 can be replaced in the same way without having to replace the entire slide 6.

[0073] In Fig. 5 further provides a guide element 65, designed as an extruded aluminum part, for tarpaulin folding means 66, wherein the guide element 65 has a central opening 651 which is adapted to the outer diameter of the plug end 629 of the plug part 62 in order to be pushed onto it from the direction of the plug end 629 and to be arranged near the eye sections 624, 625. For this purpose, the guide element 65 has a vertical perforation in its central region through its upper wall 652 and its lower wall 653, each of which is equipped with bores 652a (in Fig. 5 (not shown) and 653a are formed. Here, the guide element 65 with the bore 652a is connected to the plug part 62 with the rivet 641 with which the plastic block 64 was already connected via the bore 621b.

[0074] Claw-like, outwardly projecting openings 654 are formed in one piece from the material of the guide element 65, with a pair of claws 654 projecting from each leg 622, 623 on both sides. The claws 654 have a claw opening 654a that allows access to a central cylinder receptacle 654b aligned with adjacent claws, whereby essentially cylindrical pins 661, attached to the ends of the folding elements 66, can be inserted axially in the direction of the axis of the cylinder receptacle 654b. The claw openings 654a allow the passage of the surface areas of the folding elements 66, which are designed as folding plates made of plastic and are connected to the pins 661.The folding plates 66 each have pins 661 at their ends and a folding section 662 in the middle, which has a widening that extends over the longitudinal beams 4 and is designed to be bent upwards like a plateau when the pins 661 rotate in the cylinder receptacles 654b to lift the tarpaulin 5.

[0075] In the representation according to Fig. Figure 3 shows how the pins 661 are received in the cylinder receptacles 654b of the guide means 65. Locking lugs on the pin 661 prevent it from unintentionally sliding out of the claws 654. The design of the guide means 65 as a robust metal part, in this case made of aluminum, significantly reduces the risk of damage to the claw area of ​​the slide 6. Furthermore, a component that is designed to slide onto the plug-in part 62 like the guide means 65, but has different connection means for the folding means for the tarpaulin, for example, bores for receiving wire loops that together form the folding means, or any other system, can also be used as a guide means. This allows the guide means, adapted to the desired folding means, to be connected to the plug-in part 62.It is also possible to dispense with the guide means 65 entirely, namely when the folding means are connected, for example, to the top of the base plate 611 of the guide part 61, or when folding means are not required, as may be the case with sliding elements in the side wall area.

[0076] In the representation according to Fig. 3 A shaft part 81 is already pushed onto the plug end 629 of the plug part 62, with the shaft part 81 in Fig. Figure 3 is only shown in abbreviated form. The shaft section 81 is designed as a rectangular profile made of a sheet steel and extends essentially across the width between the opposing longitudinal beams 4 to form the frame 8 by connecting a slide 6 to each of its two end sections 811. The shaft section 81 has a bore 812 in its end section 811, extending in the direction of travel of the commercial vehicle body, which can be aligned with a corresponding bore 622a, 623a in the legs 622, 623 of the plug-in part 62. It is possible to pierce the bore 812 / 623a / 622a with a pin or rivet to secure the plug-in part 62 or the plug-in part 62.to lock the plug end 629 of the plug part 62 with the end section 811 of the shaft part 81; however, in this case, the material of the end section 811 of the shaft part 81 is embossed into the area opposite the base plate 621, so that a positive locking occurs between the shaft part 81 and the plug part 62 in the area of ​​the plug end 629, which excludes any play or movement between these two parts.

[0077] One can recognize in Fig. 3. Furthermore, it can be seen that the folding panels 66 are manufactured as plastic parts, the underside of which is correspondingly stiffened. It can also be seen that the pivot point for the pins 661 formed by the cylinder receptacle 654b or its axis is comparatively low, so that the folding panels are always angled slightly upwards and readily pivot upwards when the bows 8 are pushed together.

[0078] In Fig. Figure 4 shows that guide parts other than guide part 61 can also be attached to the plug part 62. Examples are shown in Fig. 4 Two alternative guide parts 61' and 61'' are shown, which are briefly described below, where the reference signs supplemented by "or" denote the same or comparable elements as those of the guide part 61.

[0079] It is understood that further guide elements, which may also have different dimensions than the exemplary further guide elements 61', 61", are possible, which are each adapted to the given geometries of the corresponding longitudinal beams and in particular have bearings for support rollers and, if necessary, guide rollers that are adapted to the corresponding chambers or guide tracks of the corresponding longitudinal beam.

[0080] Unlike guide part 61, guide part 61' has two openings 615' into which a folding device can be inserted. Guide part 61" has four further bores 616" through which folding sections of folding devices can be riveted to the top of the base plate 611" which, via a corresponding joint, enable the tarpaulin 5 to be erected. A separate guide device 65 is not required here.

[0081] It is understood that it is also possible to design a guide element in such a way that support rollers and guide rollers are connected at other points, whereby the connection to the plug-in part 62 is then made without a corresponding bearing of a roller.

[0082] Fig. 7, Fig. 8 to Fig. Figure 9 shows a further embodiment in which the same or functionally comparable parts as in the previous embodiment have been assigned the same reference numerals.

[0083] The slide 6 comprises a guide part 61 made of a folded, stamped sheet metal, which essentially spans the width of the longitudinal beam 4 transversely to its extent, and furthermore a connecting part designed as a plug-in part 62.Here, the guide element 6 has a base plate 611 approximately corresponding to the width of the longitudinal beam 4, from which a limiting plate 612 projects downwards at an angle of 90 degrees on the side of the convertible top frame 10 facing away from the longitudinal bisector, wherein a central end section of the end of the limiting plate 612 facing away from the base plate 611 is formed as an eye 612a, while the two sections provided on either side of the eye 612a are bent at a right angle to form hooks 612b, which engage a web 41d of the horizontal leg 41 of the longitudinal beam 4 extending away from the longitudinal bisector and thus partly form an anti-lifting device, but above all ensure that the longitudinal beam 4 is largely protected from contamination by the corresponding guide element 61 of the slide 6.On the side of the base plate 611 opposite the boundary plate 612, two tab sections 613 are bent at a 90-degree angle to the base plate 611 such that they run parallel to the boundary plate 612. The tab sections 613 form a corresponding boundary plate, such that the inwardly facing side of the base plate 611 forms the base of a U-shaped profile, and the boundary plate 612 and the connecting plate 613 form the legs of the U-shaped profile. Between the two tabs 613, an eye section 614 is formed, which extends the base plate 611 and lies coplanar with it. A tongue section 614c, formed as a strip from the material of the guide part 61, is connected to this eye section via a step 614b and projects beyond the end face of the tabs 613 facing the longitudinal bisector of the cover frame 10.At its end, the tongue section 614c has a fold 614d that forms an approximately right angle with the tongue section 614c. Both the tabs 613 and the eye section 614, as well as the tongue section 614c, are equipped with a circular bore 613a and 614a, respectively.

[0084] Each of the bores 613a in the tabs 613 has a support roller 63b, 63c connected by riveting a corresponding bearing, whereby in this case the support rollers 63b, 63c are only attached to the guide part 61. This makes it possible to attach the support rollers 63b, 63c before the guide part and plug-in part are assembled. The base plate 611 has three bores 611a in a section corresponding to chamber 41a; a guide roller 63a is connected to the middle bore 611a by riveting a corresponding bearing, whereby in this case the guide roller 63c is only attached to the guide part 61. Alternatively, it is possible to connect two guide rollers 63c to the two outer bores 611a. The bores are arranged in a downwardly embossed groove 611x of the base plate 611, which gives this particularly stressed part of the guide part 61 additional stability, especially against bending.

[0085] The plug-in part 62 is designed as a molded plastic part and has a central area with an approximately rectangular, nearly square cross-section, with a top surface 621 and two outer surfaces 622, 623 extending perpendicularly from it. The central area has perforations and ribbing to increase its rigidity, as shown in particular in Fig. 8 is clearly visible. The underside 62u, facing away from the upper surface 621, has an inwardly curved channel profile. The upper surface 621 has a recess 621x, which is laterally bounded by sections 622x, 623x projecting upwards in the area of ​​surfaces 622, 623, such that the tongue section 614c can be positioned therein. A corresponding recess may be provided for the folding 614d. In the central area of ​​the plug-in element 62, a bore 621b equipped with a sleeve injected into the plastic material is provided; another bore 621a equipped with a sleeve injected into the plastic material is formed in an area facing away from one of the longitudinal bisectors of the convertible top frame. The bore 614a in the eye section 614 of the guide part 61 is aligned with the bore 621a of the plug part 62, the bore 614a in the tongue section 614c of the guide part 61 is aligned with the bore 621b of the plug part 62.Rivets 644 pass through the bores 614a / 621a and 614a / 621b, respectively, and thus connect the plug-in part 62 and the guide part 61 to form a slide 6. The end of the plug-in part 62 facing away from the limiting plate 612—together with part of the tongue section 614c and the fold 614d—forms a plug end 629, which can be inserted into a correspondingly shaped receptacle in the shaft end of a shaft part 81 and secured there to form a corresponding bow 8 from the shaft part 81 and the slide 6. For this purpose, the central area of ​​the plug-in part 62 has a bore 622a that passes normally through the surfaces 622 and 623 and which may also be fitted with a sleeve; the connection of the plug-in part 62 to the shaft part 81 is then also made by riveting.

[0086] One can recognize in Fig. 7-9 further states that on the side of the central section extending away from the longitudinal bisector of the convertible top frame, an extension 641 is formed integrally with the plug-in part 62. This extension is designed to engage between the two support rollers 63b, 63c and beyond their end face into the portion of the longitudinal beam 4 covered by the guide part 61, such that the extension 641 penetrates under the horizontal leg that upperly delimits the chamber 41b. This ensures that the extension 641 serves as a lifting stop for the slide 6, since when the slide 6 is lifted, the upper end face of the extension 641 abuts the lower edge of the upper leg of the chamber 41b, thus preventing further lifting of the slide 6.

[0087] Furthermore, guide elements 65 for tarpaulin folding elements 66 are provided integrally with the plug-in part 62, which is manufactured as a molded plastic component. Claw-like, outwardly projecting openings 654 are formed integrally from the plastic material of the guide element 65, with a pair of claws 654 projecting from each leg 622, 623 on both sides. The claws 654 have a claw opening 654a, which allows access to a central cylinder receptacle 654b aligned with adjacent claws, with the folding elements 66 (see figure) being located at their ends. Fig. 5) The attached, essentially cylindrical pins 661 can be inserted axially in the direction of the axis of the cylinder receptacle 654b. The claw openings 654a allow the passage of the surface areas of the folding elements 66, designed as folding plates made of plastic, which are connected to the pins 661. The folding plates 66 each have the pins 661 at their ends and a folding section 662 in the middle, which has a widening that extends over the longitudinal beams 4 and is designed to be bent upwards like a plateau when the pins 661 rotate in the cylinder receptacles 654b to lift the tarpaulin 5. The design of the guide elements 65 and the claws 654, respectively, from plastic allows for lubrication-free bearing of the pins 661. It is understood that in the case of an alternative connection of folding aids – e.g., to the guide part 61' or 61'' as in Fig. Figure 4 shows that a plug-in part can also be manufactured without a guide element 65. However, such a guide element 61', 61'' can also be connected to a plug-in part 62 with a guide element 65, since the guide elements 65 do not interfere in this respect.

[0088] In an area between the extension 641 and the guide means 65, a groove 622y, 623y with a rectangular U-profile is provided in the central area of ​​the plug-in part 62 in the region of the lateral surfaces 622, 623. This groove extends through the surfaces 622, 623 from one end to the other, or alternatively, at least partially extends through them. The bottom of the groove 622y, 623y is approximately flush with the surfaces 622, 623 in the region of the plug end 629, while the lateral walls of the groove 622y, 623y are bounded on one side by a section 65x of the guide means 65 and on the other side by a projection 64x. The grooves 622y, 623y are matched to the thickness of at least the edge areas 613x of the connecting plates 613 of the guide part 61, and the edge areas 613x of the connecting plates 613 can be inserted into these grooves 622y, 623y from the direction of the top 621.By inserting the edge sections 613x into the grooves 622y, 623y, a positive locking connection between the guide part 61 and the plug-in part 62 is created in the direction of the axis of the shaft part 81 and in the direction of the longitudinal axis of the longitudinal beam 4 to be overlapped by the guide part 61. The recess 621x and the tongue section 614c also come into contact, and only a rivet is required, which is shown in the illustration according to . Fig. 9. Vertical-axial separation is permanently prevented. It is understood that when the slide is used in a sliding head, the separation direction becomes horizontal. It can be seen that in the illustrated embodiment, riveting in a plane perpendicular to the rivet 644 is avoided by appropriate design of the form-locking means.

[0089] The further exemplary embodiment according to Fig. 10-12 largely corresponds to the embodiment shown in Fig. 7-9, so that the same reference numerals denote the same parts and these are not described again. In contrast to the design according to Fig. No guide roller is connected to the bores 611a at 7-9. Instead, an elongated guide element 63aa made of a plastic material is riveted to the two outer bores 611a, guiding the slide in the chamber 41a. The guide element 63aa is shorter than the depth of the chamber 41a, so that essentially its two surfaces facing the side walls of the chamber 41a come into contact with the side walls of the chamber 41a, thus limiting maximum play.

[0090] The invention has been explained above with reference to an exemplary embodiment and some variants, some of which are shown in the figures. It is understood that a combination of individual elements of the solution shown can also have the described and apparent advantages.

[0091] The invention has been explained above with reference to exemplary embodiments in which the connecting end for connection to the shaft part is designed as a plug-in end. It is understood that the connecting end or plug-in part can also be connected to the shaft part in a manner other than by plugging it in.

[0092] It follows from the foregoing that a guide element can also be designed such that the same element can be connected both by riveting to a plug-in part made of sheet metal and / or by inserting it into a groove of a plug-in part made of sheet metal and / or plastic material. For this purpose, the tongue or eye section 614 must be dimensioned accordingly. In particular, the plug-in part 62 can be designed according to Fig. 5 and Fig. 6. It may also be designed as a molded part made of plastic.

Claims

[1] Slide for connection to a shaft part (81) which is movable along a guide of a longitudinal beam (4) of a canopy frame (10) of a tarpaulin superstructure, comprising a plug-in part (62) which has a plug end (629) for insertion into the shaft part (81), and a guide part (61) which can be displaced along the longitudinal beam (4) parallel to the longitudinal beam (4), wherein the plug-in part (62) and the guide part (61) are manufactured as separate parts, characterized by , that the plug part (62) and the guide part (61) are connected to each other by connecting rivets. [2] Sled according to claim 1, characterized by , that the plug part (62) is connected to the guide part (61) in such a way that the guide part (61) has a reinforcement in a particularly stressed zone, and that the reinforcement is formed by superimposed sections (626, 611) of the plug part (62) and the guide part (61). [3] Sled according to claim 2, characterized by , that the section of the plug-in part (62) is formed by an extension (626) of the base (621) of the U-shaped profile of the plug-in part (62), and that the section (626) of the plug-in part (62) is designed as a projecting tongue and partially covers a side of a base plate (611) of the guide part (61) facing the longitudinal member (4). [4] Sled according to any one of the preceding claims, characterized by, that the guide part (61) is designed as a U-shaped profile with a base plate (611) forming the base of the U, from one end of which a connecting plate (613) projects substantially perpendicularly, wherein opposite the connecting plate (613) and substantially parallel thereto a limiting plate (612) projects from the other end of the base plate (611), and that the base plate (611) of the guide part (61) has an eye section (614) projecting beyond the connecting plate (613) and extending the base plate (611), provided with an opening (614a), which covers a base (621) of the plug part (62) and / or its extension (626) and whose opening (614a) is at least partially aligned with an opening (621a) of the base (621). [5] Sled according to any one of the preceding claims, characterized by, that the plug part (62) and the guide part (61) are connected to each other in a first connection plane and in a second connection plane, wherein the first connection plane is at a right angle to the second connection plane, wherein a first of the connecting rivets passes normally through the first connection plane. [6] Sled according to any one of the preceding claims, characterized by , that at least one of the connecting rivets connecting the plug part (62) to the guide part (61) is designed to support at least one support roller (63b, 63c) and / or at least one guide roller (63a). [7] Sled according to any one of the preceding claims, characterized by , that at least in an area spaced apart from a base plate (611) of the guide part (61) a projection (641) is arranged which forms a lifting-stop with a horizontal leg of the longitudinal beam (4) spanned by the guide part (61). [8] Sled according to claim 7, characterized by , that the extension (641) or a part (64) having the extension is formed on a plastic block (62; 64) which is fixed with respect to the plug part (62). [9] Sled according to any one of the preceding claims, characterized by , that at least one of the plug part (62) and guide part (61) has guide means (65) for folding means (66) for a tarpaulin (5) formed as a separate part, and that the guide means (65) are manufactured as an extruded part, in particular from aluminium. [10] Cover frame for a tarpaulin superstructure, comprising a plurality of shaft parts (81) movable along lateral longitudinal beams (4), which have a slide (6) at at least one of their two ends, wherein folding means (66) for the forced folding of a tarpaulin (5) are provided in the area of ​​the slides (6), wherein each pair of adjacent slides (6) each has a guide means (65) for a folding means (66), characterized bya sled (6) according to any one of claims 1 to 9.

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