DE102020130101A1 - Openable structure - Google Patents

Abstract

The invention relates to an openable structure for a substructure, such as a self-propelled truck, a truck, a semitrailer, a trailer, a container, a tipping body, a railway wagon, a building or the like, comprising a foldable top frame, a cover that can be connected to the top frame, in particular a tarpaulin and a drive device for folding in and / or unfolding the top frame, a locking pin blocking a first rotational body (73) of the drive device in an advanced position and releasing it for rotation in a disengaged position. An openable structure which improves the folding-in and / or unfolding of the convertible top frame by a drive is characterized in that the drive device comprises a drive attachment (733) to which a drive extension (86) of an external drive means (87) can be connected in a rotationally secure manner and that the locking pin is transferred from the advanced position to the disengaged position when the drive extension (86) of the external drive means (87) is connected.

Description

The invention relates to an openable structure for a substructure as defined in the preamble of an independent claim.

From practice, tarpaulin structures for substructures are known that have a drive with which the top frame can be folded in or out, the drive transmitting a movement to one or more slides of the top frame via an at least tension element designed as a rope or wire. The power for the drive is usually transmitted to the carriage by a motor that pulls the tension element, the motor being connected to its own energy supply in the area of the substructure due to the large forces that occur. The disadvantage here is that space for the energy supply is lost and that the energy supply also has to be recharged regularly. Furthermore, it is necessary to design the drive for relatively large loads, since the power of the drive is also required to hold the movable parts of the top frame in an open position when the tipping body is tipped. This results in high energy consumption, and the currents flowing in the line network are often so high that the corresponding power consumption is no longer guaranteed. In particular, the known drives no longer work reliably if the substructure is not on a flat surface, but on a mountain or at an angle with one side on the sidewalk. The known drives are particularly energy-consuming when the moving parts of the convertible top frame are opened as a whole and the last sections of the slide have to be moved against a corresponding resistance. Finally, the known drives are not flexible enough to reliably overcome load peaks that arise, for example, when folding tarpaulin folding aids.

WO 96 33 882 A1 shows an openable structure for a substructure, comprising a collapsible top frame with a plurality of bows to which a cover in the form of a tarpaulin can be connected, a manual drive causing a single pull cable as a pulling element to move. Here, the at least one tension element, which is at least resistant to tension, is designed as an endless cable and is coupled to the two distal end pieces of the bows, which can each be displaced back and forth in a U-shaped guide, the coupling being a distal end piece via corresponding cleats on the cable locally fixed. The corresponding distal bow is moved forwards and / or backwards as a function of an actuation direction of the drive, with any slippage in the rollers not causing the bow to tilt due to the endless design of the cable. The drive here comprises a drive roller which is rigidly connected to the crank and can be driven accordingly in one or the other direction.

U.S. 3,964,781 A describes an openable structure for a substructure, comprising a collapsible tarpaulin, which is slidable on a rigid frame bounding the substructure upwards, with an endless cable being provided on each longitudinal side, which is connected to the tarpaulin, with one in the front area of the substructure motorized or manually driven shaft is provided, which is coupled to a roller on which the cable rotates. The cable is laid one and a half times over the front pulley, and once by 180 ° around a rear pulley. The front rollers on both long sides are each provided as an extension of the shaft. The disadvantage of the known structure is the fact that the top frame cannot be folded up and that the two drive cables on the two long sides of the substructure are designed to run continuously, independently of one another, so that in the event of resistance or slippage, the two drive cables no longer run synchronously and accordingly the tarpaulin tilts or tears. Due to the direct connection of the tarpaulin to the cable without interposed carriages, the tarpaulin does not come up, rather it is folded up in an uncontrolled manner.

DE 102 24 157 A1 describes a cover for the sliding roof of a passenger vehicle that can be displaced along parallel guides, in which an electric motor drive with an output shaft simultaneously drives a lower winding roller and an upper winding roller, with a pulling element designed as a drive cable, which is coupled to a driver of the cover, multiple one end is wound several times on the lower winding drum and other ends on the upper winding drum, wherein the drive rope is guided over further pulleys. For this purpose, the ends of the drive cable are attached to the respective winding drums. A middle winding drum, which is arranged axially between the lower winding drum and the upper winding drum, and which is also looped around the drive cable several times, is freely rotatable and follows the winding movement of the lower winding drum and the upper winding drum by moving the drive cable. Ultimately, one winding drum is used to pull the cover in one direction and the other winding drum is used to pull the cover in the other direction.

DE 1 225 976 A describes a cable drum which can be rotated about a bearing journal and which has a ring gear which is connected to a pinion penetrating shaft journal is designed to receive a hand crank to set the cable drum in motion. A total of two traction ropes are connected at their ends to the rope drum, four rope grooves being provided on the circumference of the rope drum, which take up each of the ends of the traction ropes when the rope drum is twisted. The cable drum is used to move a sliding roof in a motor vehicle, the maximum rotation of the cable drum being limited by pins engaging in a groove.

US 2015 018 84 81 A1 describes an openable structure for a substructure, comprising two tarpaulin sections which are connected to a longitudinally extending shaft, the shaft being rotatable around its axis for the joint winding of the two tarpaulin sections and additionally displaceable in the direction of one of the two longitudinal sides of the tarpaulin structure. A separate motor is provided for the axial displacement and for the rotary movement, the one motor driving a drum on the two tension elements, which are each coupled to one end of a rod that delimits the tarpaulin section. In this case, the current supplied by the motor is recorded, as is the duration of the current supply and, if a safety period in which the threshold value of the current consumption is exceeded, the current supply is interrupted.

DE 10 2008 022 870 B3 describes a device for detecting whether an electromechanical secondary drive for a vehicle wing of a passenger vehicle is defective. For this purpose, a threshold value is calculated, which is calculated as a limiting current for an electrical primary drive as a function of the temperature and an angle of inclination, and an evaluation unit records the power consumption of the electrical primary drive and recognizes that the secondary drive is defective if the threshold value is exceeded.

DE 10 2017 111 138A1 describes a passenger vehicle with a pivoting tailgate in which an actuator with a motor drives the tailgate between an open position and a closed position. A control is provided which, depending on the ambient temperature, the orientation and the direction, specifies the most favorable closing forces for energy.

DE 10 2012 106 804 A1 describes an actuating device for the sunroof of a vehicle, in which both a movable cover and a movable sun visor can be operated with only one motor, which for this purpose provides a planetary gear, in whose toothed wheels electromagnetically operated locking pins can be engaged.

U.S. 4,203,174 A describes an openable cover for a swimming pool, in which a tarpaulin can be rolled up on a roller arranged on one end side of the swimming pool and can be unrolled again from this. At the end of the tarpaulin, a retaining bow is incorporated, which is connected at each of its two ends to a circumferential tension element, which is guided via pulleys with a rotatable disk that is mounted on a shaft. The shaft that drives both pulleys is coupled to a clutch that is driven by a motor via a belt, and another clutch drives a shaft that winds up the tarpaulin. Magnetic switches are provided to indicate whether the tarpaulin is fully open or fully closed. The disadvantage of the known device is the fact that tilting can occur as a result of slippage or play on one of the two sides.

DE 20 2014 006 904 U1 describes an openable structure designed as a push bar roof for a substructure, in particular for a railway wagon, comprising a collapsible roof frame, a cover in the form of a tarpaulin that can be connected to the roof frame, the roof frame comprising a first frame half and a second frame half, each with a tarpaulin half connected to it. The frame halves must each be opened and closed individually by hand, and are then locked together by hand in the joint area. A particular disadvantage of this embodiment is that an operator has to walk back and forth a lot in order to open the frame halves individually and to move them into their open end position.

DE 20 2018 104 786 U1 describes an openable structure for a substructure, comprising a collapsible top frame, a cover in the form of a tarpaulin that can be connected to the top frame, and a drive device for collapsing and / or falling out of the top frame. The drive device drives a front slide of the convertible top frame with a revolving, at least tension-resistant pulling element by means of a drive motor in order to be shifted either into an open end position or into a closed end position. Here, the entire top frame is positioned on one side of the guide, which causes considerable difficulties when loading, especially from above and especially with bulk material, since the area spanned by the top frame in the open end position is still relatively large.

It is the object of the invention to provide an openable structure which improves the folding-in and / or unfolding of the convertible top frame, which is accomplished by a drive.

This object is achieved by an openable structure with the features of an independent claim.

According to one aspect of the invention, an openable structure for a substructure, such as a self-propelled truck, a truck, a semitrailer, a trailer, a container, a dump body, a railway wagon, a building or the like is created, comprising a collapsible top frame, one attached to the Cover that can be connected to a convertible top frame, in particular a tarpaulin, and a drive device for engaging and / or falling out of the convertible top frame. The structure is characterized in that the top frame comprises a first frame half with a first tarpaulin half that can be connected to it and a second frame half with a first tarpaulin half that can be connected to it, and that the first frame half and the second frame half synchronously selectively in one direction from each other through the drive device can be moved further into an open end position or towards each other into a closed end position. This advantageously provides a structure whose top frame with attached cover are divided into two frame halves of approximately half the extent of the substructure to be covered, which can be accommodated in the open end position in an edge region of the substructure, whereby the loading opening of the substructure is one has maximum central area that can be loaded from above in particular by bulk material. The drive device causes the two frame halves to be folded in or out synchronously, i.e. with the same travel progress, either in their specific open end position but in a common, central closed end position in which the end areas of the two frame halves come into contact with each other and a closed structure form.

According to a preferred embodiment, it is provided that the drive device causes at least one tension element, which is at least resistant to tension, to move, as a result of which the frame halves connected to it are moved along the substructure in accordance with the movement of the tension element. Appropriately, the at least one tension element, which is at least rigid in tension, can be coupled to a distal slide of the first frame half and to a distal slide of the second frame half, whereby the first frame half and second frame half or the associated distal slide is displaced simultaneously by the tension element when the drive device is actuated. The distal slide of the first frame half and the distal slide of the second frame half are thus moved into one of the end positions depending on an actuation direction of the drive device, i.e. either synchronously away from each other into the open end position or toward each other into the closed end position in which the The front sides of the frame halves rest against one another.

The connection of the distal slide, which can preferably be the foremost slide of a frame half or, alternatively, a further slide of the foremost spar, if it has several carriages or roller carriages, is expediently carried out in such a way that the distal slide of one frame half is attached to the one of the two strands of the tension element is connected, while the distal slide of the other frame half is connected to the other strand, which runs in the opposite direction. As a result, the always opposing movement of the two frame halves into opposite open end positions can be implemented with the same drive without additional effort.

In a preferred embodiment it is provided that at least one of the first frame half and the second frame half has a seal in an end area, the seal or the two seals in the closed end position forming a liquid against the barrier against the ingress of precipitation. The seals provide a barrier against the entry of precipitation and other environmental influences through the structure into the substructure, and thus advantageously seal the interior against external influences.

In a preferred development it is provided that the seal is connected to a carrier which is connected to the frame half by a spring device. This makes it possible for the carrier to take a slightly variable position with respect to the frame half, so that the seal can be aligned with the opposite frame half, even if it comes to a slight tilting or an inclined position. The travel of the two frame halves is accordingly a little larger than absolutely necessary so that the two frame halves meet in the middle, so that the spring device of the first frame half and the spring device of the second frame half can each yield a little and the seals are brought into reliable cooperation .

In this case, it is expediently provided that the spring device biases the carrier in the direction of the closed end position and that the carrier can be displaced against the closed end position along a guide of the frame half. As a result, the carrier is advantageously disengaged maximally in the direction of the closed end position, and can be shifted a little while tensioning the spring into the open end position so that the two frame halves cooperate reliably and form a tight seal. The guide in the frame half ensures that the carrier can be moved a maximum distance against the bias of the spring device, and that at the same time the carrier is guided on a predetermined path.

In a preferred embodiment it is provided that the end of the carrier is received in an elongated hole of the frame half, which elongated hole advantageously limits the maximum stroke of the carrier under tension of the spring device

A sensor is preferably arranged at the foremost end of the frame half, in particular on the carrier or on a foremost bow, which detects whether the two frame halves have reached the closed end position. The sensor can be an optical sensor that checks whether light is still entering through a gap between the two frame halves, or a position sensor that detects the position of the two frame halves or one of the two frame halves. In this way, an operator can advantageously be shown when the two frame halves have reached the closed end position, so that the operator stops the actuation of the drive device, even when the frame halves are not in his field of vision. A corresponding display can be arranged for this in the area of the drive device.

According to a preferred embodiment, the drive device has a drivable first rotary body, around which in particular the at least tensile tensile element is wound. The at least one at least one tensile-stiff tensile element is preferably wound or placed around the first rotational body several times, as a result of which a frictional transmission of the rotational movement of the first rotational body to the tensile element takes place. If the direction of rotation of the drive device is changed, the tension element is caused to shift accordingly in the other direction.

In a preferred development, it is provided that the drive device comprises a second rotational body, the first rotational body and the second rotational body being arranged adjacent to one another, and together forming the drive device. In this case, the at least one tension element, which is at least rigid in tension, is wound or placed multiple times around the drive device formed from the first rotational body and the second rotational body. By wrapping two spaced apart, adjacent first and second rotating bodies, it is advantageously achieved that the tension element does not migrate depending on the direction of rotation of the drive device along the axis of the rotating body and jams itself in an unfavorable design.

The drive device can optionally be actuated by a motor as an external drive means, for example by a permanently installed motor coupled to the first rotating body, for example by a gearbox, or by the motor of an external motorized screwdriver that can be brought into contact with the first rotating body. Alternatively, a manually operated external drive means such as a crank, a socket wrench or the like can also be provided, with a step-up or step-down being possible here too by means of an interposed gear.

In a favorable embodiment, it is provided that the operator is informed when the closed end position is reached due to the resistance during the displacement of the first and second frame halves. However, it is also possible, in order to avoid damage or, in the case of a motor drive, even to prevent the at least tensile tensile element from tearing, for the drive means and the tensile element to be decoupled, for example by means of a slip clutch. The slip clutch can be exceeded by overcoming the coefficient of friction of the pulling element on the first rotating body, the first rotating body or the drive device then rotating under the pulling element. However, it is preferably provided that either a slip clutch is provided between a drive attachment of the drive device and the first rotating body, which prevents overloading. Alternatively, a mechanical torque limiter can also be integrated in the drive device, for example in the area of the drive attachment, the mechanical torque limiter preferably comprising two limiter parts that mutually transmit the torque up to a preset value of the torque and thereby decouple any torque beyond that from the drive device that the two limiter parts mutually generate a slip by sliding. This can advantageously prevent overloading of the system and of the tension element connected to it, even in the event that an external motor drive is used to actuate the frame halves.

The distal carriages of the frame half are each coupled to the tension element and thus ensure a connection of the distal end of the frame half with the tension element. The proximal end of the frame half is in each case connected to a frame piece of the substructure and in this way ensures a seal against the environment. This means that the proximal end of the Frame half remains at the end in which the frame half is assembled in the open end position.

According to a favorable aspect it is provided that the drive device comprises a driven first rotary body, that the drive device comprises a second rotary body, that the first and the second rotary body are arranged adjacent to one another and form a drive device, and that the at least one at least one tensile element that is rigid in tension is repeatedly reversed the drive device formed from the first cylinder and the second cylinder is wound or laid. This advantageously ensures that the force from the driven first rotary body is transmitted to the at least one at least one tensile element that is at least rigid in tension, so that the at least one at least one tensile element that is at least rigid in tension is not in the direction of the axis of the first rotational body and / or even when the carriage is shifted back and forth several times of the second rotational body migrates and gets jammed there. Rather, the force transmitted by the driven first rotary body to the at least one at least one tensile stiff pulling element is reliably transmitted to the slide of the convertible top frame, so that the latter can be displaced precisely and reproducibly into different opening positions. Even if a slip should occur during the transmission from the drive device to the at least one tensile element that is at least rigid, the drive only consumes a comparatively low power overall, so that it is possible to connect the drive to the useful output of a vehicle battery of a vehicle carrying the substructure so that a separate energy supply is not necessary.

It is expediently provided that the at least one tension element with tensile strength is wound several times around the drive device, that is to say around the first rotating body and the second rotating body. In this case, neither the first body of revolution nor the second body of revolution is completely wrapped, but the wrapping is approximately 180 degrees, so that the rotational body is each about half wrapped. The number of wraps is preferably selected between two and eight, more preferably between three and six, but wrapping the drive device four times is particularly favorable.

The second rotary body is expediently driven by the at least one tensile-stiff pulling element, the first rotary body being set in rotation by the drive. The second rotational body is therefore passive or is dragged by the first rotational body by means of the at least one at least one tensile element that is rigid.

According to a favorable embodiment it is provided that the first rotational body has circumferential grooves in which the at least one at least one tension element, which is at least rigid, is guided. The circumferential grooves and in particular the webs delimiting the circumferential grooves ensure that, depending on the drive direction, the at least one at least one tensile strength pulling element does not migrate axially, so that the pulling element does not jam on the first rotational body. Circumferential grooves are each arranged in parallel planes in the axial direction of the cylinder and can have run-in bevels for the tension element. It is also possible that the first rotational body has a more or less conical contour, for example that of a truncated cone in which the circumferential grooves have a different circumference. However, the circumferential grooves preferably have the same diameter, so that the moment that acts on the at least one tensile element that is at least rigid in tension is approximately the same in all the grooves. As a result, there is no unnecessary tension on the tension element as a result of different torque loads in the various grooves.

Radial webs are preferably arranged between the adjacent circumferential grooves which prevent the at least one at least one tensile-stiff tension element from leaving the respective circumferential groove. If the drive device is driven, part of the power transmission can also be transmitted by rubbing the at least one tension element, which is at least rigid in tension, on the corresponding radial web. It is possible to provide a knurling running parallel to the axial direction of the rotating body within the circumferential groove, which increases the force transmission to the at least one at least one tensile stiff tension element at specific points.

The first rotating body and the second rotating body, which are each preferably designed as cylinders, expediently have parallel axes. This makes it possible to adjust the tension of the at least one tension element favorably by adjusting the axis distance and also to compensate for lengthening or shortening of the tension element, which can occur due to temperature or intensive use. Due to the parallel axes, the force is transmitted particularly favorably to the tension element. Alternatively, however, it is also possible to arrange the axes of the bodies of revolution at an angle to one another, for example if the bodies of revolution are designed as cones.

The first rotational body and / or the second rotational body preferably have a mutually variable spacing for adjusting the length of the at least one tensile element that is rigid on. This can take place in that the rotational body is received in the area of its axis in an elongated hole which allows an infeed in the direction of the other rotational body. This is expediently provided for the second rotary body, since the first rotary body is driven by the drive and the drive would then also have to be designed to be displaceable. Depending on the set distance, sagging of the at least one at least one tension element can be prevented, so that there is practically no slippage when the drive power is transmitted from the drive to the slide.

The second rotational body can expediently be displaced in the direction of the first rotational body, so that the tension of the tension element can be adjusted. As an alternative, it is possible to be able to adjust the second rotational body in a direction that does not change the distance from the first rotational body.

According to a favorable development, a spring member is arranged between the first rotating body and the second rotating body, which acts on the second rotating body or its axis in the direction away from the first rotating body or its axis and thus achieves tensioning of the at least one at least one tensile element. In this way, a stable system is achieved in a favorable manner, since the spring member can be tensioned in the event of load peaks as a result of deformations in the area of the convertible top frame or the substructure or in the case of obstacles that have to be overcome, so that there is a slight equalization of the tension of the tension element within the system comes. As soon as the obstacle has been overcome, the second rotary body again assumes the distance from the first rotary body preset on the basis of the spring constant of the spring member and the system of the tension element again has its initial tension. The spring member also dampens the vibrations in a favorable manner through the drive and the movement of the vehicle and the top frame

An advantageous embodiment is characterized in that at least the second rotating body comprises a plurality of independently rotatable disk-shaped cylinder sections, the disk-shaped cylinder section being wrapped around by the at least one at least one tensile element. In this way, similar to a multiple pulley block, each independently rotatable disk-shaped cylinder section is driven individually by the first rotating body, with the result that the resistance to rotation of the second rotating body is reduced overall. The disk-shaped cylinder sections can be designed in the manner of deflection rollers as they are used in any case for deflecting the tension element in the area of the substructure. At least two, preferably three, four, five or six disk-shaped cylinder sections are expediently provided, which are arranged coaxially to one another on the axis of the second rotating body. However, it is also possible to mount the cylinder sections on several axes, which, however, entails a more complex mounting.

The transmission of force from the first body of revolution to the at least one at least one tensile element that is rigid in tension is preferably effected by friction, in particular on the circumference of the first body of revolution. However, it is also possible to equip the circumference of the rotating body with recesses in the manner of circumferential toothing and to equip the tension element with projections in the manner of a toothed belt, so that the positive fit in the area of the contact effects the transmission of force.

According to another advantageous embodiment, the grooves and webs can be V-shaped, so that they transport the tension element partially clamped on the circumference, and slip is practically excluded.

According to a preferred embodiment it is provided that a locking pin is provided which can be advanced against a rotatable part of the first rotating body, that the locking pin secures the first rotating body against rotation and thus blocks the carriage even in a non-driven state of the drive.

According to a favorable aspect, a locking pin is provided which can be advanced against a rotatable part of the drive, and that the locking pin secures the drive and / or the at least one at least one tensile-stiff tension element against rotation and thus the slide even in the de-energized or non-powered state of the Drive blocked. This advantageously means that the drive does not have to be permanently energized in order to hold the completely, partially or not opened top frame, which leads to high power consumption and heat development. In addition, this effectively prevents the permissible power consumption from being exceeded because of the wind that occurs in order to hold the open top frame in an unfavorable angular position of the substructure or while driving. Finally, the manual locking and unlocking of the openable structure outside of the at least one tension element, which is at least rigid, is avoided, so that incorrect operation cannot occur. The locking pin ensures that when the drive is de-energized, the rotatable part of the drive cannot be rotated in that the locking pin is advanced, in particular a rotary body such as the first cylinder described above, the slide cannot be displaced against the bias of the tension element. As a result, the slide is advantageously not only driven via the tension element, but also locked. A separate mechanical lock, which has to be released manually, then no longer has to be provided.

The locking pin can expediently be actuated between an advanced position and a retracted position and for this purpose preferably has an electromagnetic drive which can easily be triggered in one and / or the other direction by a control of the drive.

It is possible to provide a circuit or arrangement in which the locking pin is automatically advanced when the actuation of the drive is stopped. Alternatively, the locking pin can also be advanced manually or in some other expedient manner, for example pneumatically or hydraulically.

The locking pin expediently blocks a driven first rotary body, in particular the drive, and prevents it from rotating, so that neither forces can be transmitted to the carriage in one or the other direction via the first rotary body. In this way, a locking of the driven rotary body is advantageously achieved, so that the forces which the first rotary body could otherwise introduce into the system including the tension element are effectively prevented. Alternatively, the locking pin can also block another rotating body of the system, for example the aforementioned second rotating body or cylinder or any deflection roller of the system. In this case, however, the convertible top frame may flutter slightly, since the driven rotary body then possibly tries to rotate under the tension element.

The locking pin is preferably loaded into the advanced position by a spring element. This advantageously ensures that the locking pin always comes into engagement with the rotatable part when the drive should be de-energized and prevents it from rotating. For this purpose, it is preferably provided that the rotatable part has a recess into which the locking pin can be advanced so that the rotatable part is prevented from further rotation. It is possible to couple the spring element with the locking pin, but preferably the spring element will already be built into an electrically operated lifting magnet which then pulls the locking pin back against the bias of the spring element.

It is possible to provide several locking pins that can be advanced at the same time on the rotatable part of the drive, especially when the forces acting on the rotatable part are large and can be better absorbed by several locking pins. In this case, the multiple locking pins engage at the same time. According to an alternative embodiment, the locking pins can also be spaced apart from one another with a pitch that corresponds to the number of locking pins, so that the accuracy of the holding positions of the carriages is improved by a factor that corresponds to the pitch. In this case, however, only one of the locking pins can engage in the rotatable part, while the remaining locking pins press against the disk section, for example, without being able to penetrate the holes.

According to a particularly advantageous embodiment, it is provided that, in order to release the locking pin, the drive can only be moved counter to the intended displacement direction, and that the locking pin is thereby at least temporarily relieved in order to be able to pull the locking pin back. This configuration of the drive can be easily implemented by appropriate programming of the control, which ensures that the radially loaded locking pin, which otherwise cannot be easily pulled out of a recess or a hole in the rotatable part, can nonetheless be withdrawn. It should be noted that depending on the position of the substructure, the structure and depending on the load on the corresponding parts, the locking pin can absorb relatively large loads, which usually act in the closing direction, but can also act in the opening direction, for example if the substructure is on a inclined surface rests. If the drive is only moved against the intended direction of displacement, that is, if an opening is provided, in the closing direction, and if closing is intended in the opening direction, it is ensured that regardless of the direction in which the locking pin is loaded, it is either in the first counter-rotating movement or during the subsequent main movement is relieved for a sufficiently long period of time so that the locking pin can be withdrawn from the corresponding perforation. The force that is transmitted to the locking pin via the rotatable body is essentially transmitted via a radial abutment on the locking pin. However, this is so high that it is often not possible to retract the locking pin due to its drive without the tension element shifting back and forth. As a result, it is particularly advantageously possible to dimension the power for the displacement of the locking pin small and the locking of the locking pin by the to have the mass of the convertible top frame acting on the rotatable part via the tension element.

It is preferably provided that further carriages on one side of the convertible top frame are free from the at least one at least one tension element that is rigid. This makes it possible for the carriages to move freely on a guide of the convertible top frame and for only the distal carriage to be coupled to the pulling element by a corresponding device. Alternatively, the distal slide can be carried along by a slider connected to the pulling element, which only acts on the distal slide in one direction, so that the slide is opened against the restoring force of the mass of the convertible top frame by the drive, while it closes under the load of the Mass without drive.

The at least one tension element, which is at least rigid in tension, expediently runs in sections parallel to a guide rail for the slide. This allows it to be coupled to the distal slide in a simple manner.

The at least one rigid tension element is expediently designed as an endless, closed tension element so that the drive can move it in both directions. The pulling element can optionally drive the distal slide on one side of the top frame or both distal slides on both sides of the top frame.

Expediently, the at least one tensile stiff tension element is designed as a metallic wire, in particular made of steel, which is not very ductile, only slightly lengthened or shortened in the event of temperature fluctuations, and which is extremely robust against external interference.

The ends of the at least one tension element with tensile stiffness are preferably connected to one another with a clamp in order to achieve an endlessly revolving tension element, the clamp advantageously simultaneously causing the connection to a distal slide of the convertible top frame. If several carriages are driven by the pulling element, a second clamp can easily be connected to the pulling element.

In a preferred embodiment it is provided that the at least one at least one tensile-stiff pulling element is connected to two distal carriages which are connected to a common spar, and that the pulling element drives the two distal carriages at the same time. For this it is not necessary to provide two tension elements, rather the drive enables the two carriages to be driven at the same time. If the top frame has a sufficiently rigid end slide, this enables the distal slide to be driven from only one side, so that there is then no need to drive two distal slides at the same time.

According to a preferred embodiment, it is provided that the at least one pulling element, which is at least resistant to tension, is connected to a distal slide, which is connected to a spar, and drives the folding top frame on one side. It is also possible that the distal slide is not connected to a spar, for example when the tarpaulin folding aid has a lifting spar, in this case the at least one tension element, which is at least rigid, is connected to a distal slide and drives the folding top frame on one side.

Expediently, the at least one tension element, which is at least rigid in tension, fixes the connected slide or slides in their position when the rotatable part is blocked in a rotational angle position. As a result, it is not necessary to provide a manually releasable lock.

The drive preferably comprises a 24-volt motor, which is readily available on the market as a standard product and also does not require a large amount of installation space.

Alternatively, the drive can include an attachment for a hand crank, so that instead of flange-mounting an electric motor, the hand crank can also be used to open and close the convertible top frame.

According to a first preferred embodiment, it is provided that the structure delimits an upper roof opening of the substructure in a closable manner. In this case, the cover is e.g. a roof tarpaulin that should be opened or closed for loading and / or unloading.

In an alternative embodiment it is provided that the structure delimits a lateral roof opening of the substructure in a closable manner, for example a lateral loading opening of a curtainsider. In this case, the cover is designed as a side tarpaulin of the substructure, for example.

The cover is expediently designed as a foldable tarpaulin, but it is also possible to form the cover from several articulated foldable plate bodies that span a foldable hard roof. However, the power consumption of the drive for folding panel bodies is significantly higher than that of a tarpaulin, since not only are the moving masses higher, but the lack of flexibility of the panel bodies also inhibits the kinematics.

According to a preferred embodiment, it is provided that the at least one at least one tensile element is directly connected to the slide so that the force of the drive can be transmitted to the distal slide via the tensile element with few interposed elements. Alternatively, it is possible to equip the slide with a connecting part that protrudes downward from the slide, for example, and that extends into the displacement area of the tension element, so that it is not necessary to attach the tension element to the substructure or the guide directly at the height of the slide embarrassed. In a favorable embodiment, it is further provided that the rigid pulling element is coupled to a lever which is pivotably connected to the slide. The lever is advantageously an extension of a part which is already placed on the distal slide, for example a distal cover, which is arranged pivotably about the axis of the lever. However, it is also possible to articulate the lever on the distal slide independently of this.

The at least one at least tension-resistant pulling element expediently comprises a first deflection device around which the pulling element is placed, which is expediently a distal deflection roller that can be arranged in the area of the distal slide when the top frame is closed. The first deflection device is expediently rotatable about a horizontal axis and attached directly or indirectly to the substructure, so that the tension element can move endlessly over the first deflection device in the manner of an upper run or a lower run.

Preferably, the at least one at least rigid tension element is placed further around a second deflection device, which is preferably designed as a deflection roller, which can be rotated about a vertical axis, for example in the area of a section extending the substructure, with which it is possible to deflect the tension element in one direction which is at least approximately perpendicular to the extension of the tension element between the second deflection device and the first deflection device. In this way, one longitudinal side of the substructure can also be actuated favorably by the same pulling element as the second longitudinal side of the substructure.

Preferably, the at least one tensile stiff tension element is also placed around a third deflection device, which is preferably a deflection roller that is rotatably connected about an essentially vertical axis to an area continuing the substructure, so that both the upper run and the lower strand, which come from the first deflection device, with which the rotating body driving the tension element is coupled. The coupling can take place in such a way that the tension element is coupled to a first rotary body driven by a motor, the tension element being wound several times around the first rotary body. If the top frame is driven from two sides, the pulling element is connected by one of the second deflecting device and the third deflecting device to an opposite deflecting device, and the part of the pulling element reaching back is then connected to the driving first rotary body of the drive. It goes without saying that the drive can be designed as described in detail above.

A locking pin is preferably provided which blocks a first rotational body of the drive device in an advanced position and releases it for rotation in a disengaged position. The locking pin ensures that due to any external movements, for example when the substructure is moved, or due to the tension in the frame halves in the end position, the frame halves transmit a movement to the at least one tension element and drive the rotary body accordingly. The locking pin therefore also ensures that the frame halves are fixed in the respective position.

The drive device preferably comprises a drive attachment to which a drive extension of an external drive means can be connected in a rotationally secure manner. The drive extension can be, for example, a ring spanner or the like, which is adapted to the geometry of the drive extension. The drive attachment can also be a recess, for example a Torx or a hexagon socket. Correspondingly, an operating person, for example in the case of a crank or a cordless screwdriver, transmits a drive force to the drive device as an external drive means.

When the drive extension of the external drive means is connected, the locking pin is preferably transferred from the advanced position to the disengaged position, so that the attachment or attachment of a drive extension of an external drive means simultaneously unlocks the locking pin and releases the drive device for rotation. Any forces previously held by the locking pin must then be withstood by the drive means or the drive extension.

According to one aspect of the invention, an openable structure for a substructure, in particular for a substructure as described above, such as a self-propelled truck, a truck, a semitrailer, a trailer, a container, a dump body, a railway wagon, a building or the like is created, full a collapsible top frame, a cover that can be connected to the top frame, in particular a tarpaulin, and a drive device for collapsing and / or falling out of the top frame, a locking pin blocking a first rotational body of the drive device in an advanced position and releasing it for rotation in a disengaged position. The design is characterized in that the drive device comprises a drive attachment to which a drive extension of an external drive means can be connected in a rotationally secure manner, and the locking pin is transferred from the advanced position to the disengaged position when the drive extension of the external drive means is connected. This ensures that when the drive device or its drive attachment is connected to a drive extension of an external drive means that is configured accordingly, the locking pin is simultaneously transferred into the disengaged position so that the drive device and the at least one at least one tension element that is expediently connected to it is free can be rotated. Conversely, however, it is also ensured that when the drive extension is removed, the locking pin is displaced back into engagement into the advanced position, so that the top frame or the frame halves are reliably held in the corresponding position.

The locking pin is expediently loaded into the advanced position by a spring element, so that on the one hand the spring force of the spring element has to be overcome when the drive extension is connected to the drive attachment, on the other hand the locking pin is reliably shifted back into the advanced position when the drive extension of is withdrawn again from the drive attachment.

The locking pin preferably has an end-face toothing which can be brought into use with a toothed periphery of the drive device to block the drive device. In the advanced position, the toothing of the locking pin blocks the drive device by engaging with the toothed circumference, and thus also the entire system of moving parts that is coupled to the drive device, in particular the at least one at least one tensile-stiff tension element. This ensures that the locking pin prevents a rotary movement of the drive device with the force of the spring element.

It is expediently provided that the locking pin is transferred from the advanced position to the disengaged position by the action of an actuating arm. The actuating arm is here preferably arranged parallel to the locking pin and connected to it. The actuating arm is displaced by the drive extension and takes the locking pin with it from the advanced position to the disengaged position or vice versa.

The actuating arm advantageously protrudes radially in the direction of the drive attachment and when the drive extension is connected to the drive attachment, the actuation arm and the locking pin are displaced radially outward into the disengaged position. As a result, the toothing of the locking pin is lifted from the toothed periphery of the drive device, without the locking pin itself having to be touched for this purpose.

According to an advantageous development, it is provided that the drive extension has a conical circumferential section which, when connected to the drive extension, displaces the actuating arm and the locking pin. The conical circumferential section defines an inlet slope in the manner of a wedge for the actuating arm and, when a corresponding axial force is applied, urges it outward into the disengaged position. As a result, it is advantageously not necessary to release the actuating arm and the locking pin separately before the drive extension can be placed on the drive attachment; rather, the locking pin can be released and connected to the drive attachment in one movement.

The actuating arm expediently has an end region with a recess and an edge, the end region preferably protruding parallel to the axis of the drive device and the recess running perpendicular to the axis and forming an approximately V-shaped notch with the edge. The conical circumferential section of the drive extension preferably has a radial recess so that the edge of the end region of the actuating arm penetrates the radial recess under the load of the spring element and secures the conical circumferential section against unintentional pulling out. This advantageously means that the actuating arm must first be released separately before the drive extension is pulled away from the drive attachment, and it is accordingly ensured that the locking pin comes radially against the toothing again.

The drive attachment is expediently provided as an extension of an axis of rotation of the first rotational body of the drive device. Although this does not result in a favorable transmission for the drive extension or the external drive means, on the other hand the drive force is also introduced directly into the drive device.

It is preferably provided that the drive device is arranged on an end face of the substructure, which is transverse to the longitudinal sides with the Guides of the top frame is provided, along which the top frame or the frame halves are displaced or displaced. As a result, the transmission on both longitudinal sides is provided in approximately the same length of the tension element.

According to a favorable embodiment, it is provided that the drive extension comprises an end adapted to the drive attachment and an end adapted to a tool and thus forms a type of socket which is specifically intended for use on the structure or the drive device. It is provided here that the two ends of the drive extension are decoupled by a mechanical torque limiter when a threshold value of the torque is exceeded, so that only those torques are introduced into the drive device that are below the threshold value.

According to a favorable embodiment it is provided that the external drive means is a crank. However, it is also possible as an alternative to provide a motor-driven tool such as an impact wrench, a pneumatic drill, a hydraulic turbine, an internal combustion engine or a cordless screwdriver as an external drive means, whereby the operators often have corresponding devices available anyway.

Further advantages, features, properties and developments of the invention emerge from the dependent claims and from the description of the following exemplary embodiment.

• 1 zeigt eine perspektivische Ansicht eines als Planenaufbau ausgebildeten bevorzugten Ausführungsbeispiels eines öffenbaren Aufbaus.
• 2 zeigt eine schematische Darstellung der Führung des Zugelements aus 1.
• 3 zeigt einen Ausschnitt der Gestellhälften aus 1 in vergrößerter Darstellung.
• 4 zeigt eine vergrößerte Ansicht der Antriebseinrichtung aus 1 mit vorgeschobenem Sperrstift.
• 5 zeigt eine Ansicht entsprechend 4 mit ausgerücktem Sperrstift.
• 6 zeigt eine perspektivische Ansicht des Antriebs.
• 7 zeigt eine perspektivische Ansicht der Antriebseinrichtung mit weiteren Elementen.

The invention is explained in more detail below with reference to the accompanying drawings using a preferred exemplary embodiment.

• 1 shows a perspective view of a preferred embodiment of an openable structure designed as a tarpaulin structure.
• 2 shows a schematic representation of the guidance of the tension element from FIG 1 .
• 3 shows a section of the frame halves 1 in an enlarged view.
• 4th FIG. 11 shows an enlarged view of the drive device from FIG 1 with advanced locking pin.
• 5 shows a view accordingly 4th with the locking pin disengaged.
• 6th shows a perspective view of the drive.
• 7th shows a perspective view of the drive device with further elements.

In 1 Fig. 3 is a perspective view of a sunroof 10 trained openable structure shown, in which a tarpaulin shown in dash-dotted lines 12th is indicated, which is not shown in the other figures for better illustration. Also is part of a silhouette of a railroad car 14th for the reception of bulk goods indicated by a hood frame 16 is built over. The railroad car 14th is designed, for example, as a freight wagon that is open at the top, in which rubble, but also dusty materials, can be accommodated, which is why the cover is provided by the tarpaulin structure 10 expedient, may even be prescribed during transport.

The tarpaulin structure 10 points on both sides of the substructure 14th a connected guide rail on each of its upper outer wall 20th in the form of an aluminum profile, which can consist of a plurality of guide rail sections which are fixed in the area of the upper boundary of the lateral longitudinal wall, for example by rivets, screws or other suitable fastening means

The hood frame 16 also has one along the guide rails 20th movable sliding roof arrangement 30th on that to release the loading opening of the container 14th can be opened and closed again to cover it. The top frame here has a first frame half 16.1 and a second frame half 16.2 on, their respective end faces 17th optionally in one direction away from each other, symbolized by the arrows O , are each displaceable into an open end position. In the arrow O in the opposite direction are the end faces of the frame halves 16.1 , 16.2 moved towards each other until contact is made. The ends facing away from the end faces 19th of the frame halves 16.1 , 16.2 are each with one of the narrow sides of the substructure 14th in its upper edge at about the level of the rails 20th connected and thus seal the opening of the substructure 14th against the ingress of rain and the like.

Each frame half 16.1 , 16.2 the sliding roof assembly 30th includes a plurality of carriages 32 running along the guide rail 20th can be moved. Each with respect to a longitudinal bisector, that is the plane that is centered between the side walls of the substructure 14th is arranged or the plane that is centered and parallel to the guide rails 20th runs, opposite carriage 32 is over an elongated spar designed as a bow 34 connected with each other. Everyone to the sledge 32 provided spars 34 lie at the same height, which is roughly the height of the tarpaulin 12th with closed tarpaulin structure 10 corresponds to. For this is the tarpaulin 12th above suitable connection means with the spars 34 connected, for example with buckles or straps or in the tarpaulin 12th trained recordings. The number of sleds 32 and with it the spars 34 can depending on the length of the tarpaulin structure 10 vary.

On every sled 32 is also on both sides of the spar 34 one folding plate each 37 pivoted via a hinge that folds up when the two spars 34 be pushed together, and folds into one knee while lifting the tarp 12th .

3 shows an enlarged view, in particular of the end faces 17th of the two frame halves 16.1 , 16.2 . It can be seen that the end faces have a tubular support 170 comprise, which have a substantially hollow cylindrical shape. The porters 170 are over their extension on at least two pegs 171 connected by the foremost bow 34 ' , which is on both sides with the distal slide 32 ' is equipped, connected. The shaft 17a penetrates a corresponding, preferably slot-like opening in the wall of the carrier 170 and allows the wearer 170 a little way, corresponding roughly to the distance of the carrier 170 and the front end of the foremost bow 34 ' , is moved. The carrier 170 is in this case by a pretensioning means 172 , which is designed in the manner of a helical compression spring, in the direction away from the foremost bow 34 ' burdened. When the two carriers 170 in the closed end position of the two frame halves 16.1 , 16.2 collide, the biasing means 172 give way a little, and thus a slight inclination of the carrier 170 with respect to the face 17th achieve, with the beneficial result that the two carriers 170 be flush.

The two carriers 170 are each with a seal 173 covered with an elastic spring clip 174 contains the seal 173 surrounds so that the abutment surface in the end area 17th by the mutual concern of the seal 173 is achieved. In 3 point the seals 173 a rounded profile, so that a line-shaped or a narrow strip-shaped contact between these two provides a seal. But it is possible to use the seals 173 to be configured differently, for example with interlocking projections and recesses, in order to achieve a labyrinth-like seal which particularly effectively prevents the passage of rain and the like. In addition, it is also possible to use just one of the two carriers 170 with a seals 173 equip that also with the metallic carrier 173 the other side has already achieved a proper seal.

The foremost bow 34 ' includes two bars and is appropriately sturdy. It can be seen that the distal slide, which is assigned to this spar, does not necessarily have to be the foremost slide, but rather another slide of the foremost spar 34 'can also be connected to the pulling element 71 get connected. In this respect, all sleds are 32 ' , the next coming spar at the foremost or the closed end position 34 ' are connected, suitable as a distal slide.

It is possible, but not necessary, to use the two carriers 170 yet to be mutually locked. In fact, the locking of the carrier and the frame halves connected to it already takes place by fixing the tension element 71 by means of a lock, which is explained in more detail below.

A special feature of a tarpaulin structure 10 for a wagon 14th is that the wagon 14th has a high rigidity, so that the top frame 16 must follow the changes in shape of the container. These can be caused by thermal expansion, for example when the container is hot, or deformation of the container, for example by the bulk of the filling or by mechanical damage.

Both with the foremost spar 34 ' connected sled 32 ' are of a drive 70 for moving the sliding roof arrangement 30th along the guide rail 20th drivable. The drive 70 comprises a tensile stiff tension element designed as an endless wire, that is to say closed 71 on, the one with the foremost carriage 32 'via a clamping arrangement 71a is coupled so that the movement of the wire 71 the foremost or distal slide 32 ' relocated. The drive 70 In an alternative embodiment, it optionally comprises a 24 volt electric motor, the output shaft of which is coupled to a worm, which is connected to an input shaft as a first cylinder 73 trained first body of revolution meshes.

On a rear wall of the substructure or wagon 14th is a housing 22a connected that in 7th is shown partially cut away and in which the first cylinder 73 and one as a second cylinder 74 trained second rotational body are housed. The first cylinder 73 and the second cylinder 74 are each on the housing 22a rotatably connected. Here is the first cylinder 73 stationary in the housing 22a mounted while an axis 740 of the second cylinder 74 in an elongated hole 220 of the housing 22a is housed, which slot 220 in its main axis to the first cylinder 73 shows so the second cylinder 74 accordingly in its distance from the first cylinder 73 or its axis 730 is adjustable. The first cylinder 73 and the second cylinder 74 form together a drive device 75 for the tension element 71 that several times around the two cylinders 73 , 74 is laid. Here is the tension element 71 not completely wrapped around one of the cylinders, but always alternating about 180 degrees around each of the two cylinders 73 , 74 .

The first cylinder 73 has a plurality normal to the axis 730 of the first cylinder 73 running circumferential grooves 73b on in which the tension element 71 is led. The circumferential grooves 73b have a slightly V-shaped contour that the tension element 71 slightly jamming leads. Between adjacent grooves 73b are radial webs 73c arranged that prevent the pulling element 71 the respective circumferential groove 73b leaves. One recognizes in particular in 8th that a total of five circumferential grooves 73b to the first cylinder 73 are trained.

The second cylinder 74 comprises four rotatable disk-shaped cylinder sections 174 around the axis 740 can rotate independently of each other. The cylinder sections 174 are designed like a package of pulleys. The cylinder sections 174 each have a circumferential groove 174b for guiding the tension element 71 , which can also be V-shaped, but which in the present case is designed as a stepped recess between two reel disc areas.

To reliably apply a force to the tension element 71 initiate form the first cylinder 73 and the second cylinder 74 thereby a drive device 75 that the tension element 71 each a first, topmost groove 73b of the cylinder 73 wraps around 180 °, then a first, uppermost cylinder section 174 of the second cylinder 74 in the area of its groove 174b around 180 ° and then again the second, second from the top groove 73b of the cylinder 73 to about 180 °. This is repeated for all other grooves 73b and cylinder sections 174 with grooves 174b until the spring element 71 the fifth, lowest groove 73b leaves. As a result, a tensile force is reliably applied to the tensile element 71 initiated. At the same time it is avoided that the tension element 71 jammed around a single cylinder as a result of the drive movement. At the same time it is ensured that the spacing of the tension element 71 on the two cylinders 73 , 74 a self-inhibiting of the tension element 71 is avoided.

In 2 is shown schematically how the tension element 71 is relocated. The tension element 71 is in the area of a connection 71a with the distal slide 32 ' the first half of the frame 16.1 and the second frame half 16.2 connected and takes this in the direction of the arrow 71b to open the tarpaulin structure 10 or in the opposite direction to close the tarpaulin structure 10 With. The tension element 71 is around a distal pulley 75a , 75a ' placed, with the two of the pulley 75a outgoing sections each around pulleys 75b , 75b ' , 75c , 75c ' are redirected.

The distal pulley 75a , 75a ' can be rotated about a horizontal axis, so that the tension element 71 essentially parallel to the guide rail 20th runs, as well as in 1 to recognize. The other pulleys 75b , 75b ' , 75c , 75c ' are around vertical axes on each of the two triangular plates 22nd connected. The tension element 71 is from the pulley 75c one side to the pulley 75b ' the other side out, so that the same tension element 71 the two distal carriages 32 ' drives. The tension element 71 is from the other proximal pulley 75c to a top groove 73b of the first cylinder 73 the drive device 75 directed. From the drive device wrapped around several times above 75 the tension element arrives 71 then to the other pulley 75c ' .

In 4th to 6th A particularly preferred drive device will now be described in which no motor is integrated, but in which the external drive means is coupled to the drive device.

In the representation according to 4th the first body of revolution can be seen in sections 73 , a drive device 75 that also has a second solid of revolution 74 includes. A tensile element that is at least resistant to tension 71 in the form of a wire rope is several times around the first body of revolution 73 in circumferential grooves provided for this purpose 73b out, and is on its upper face with an externally toothed, coaxial to the axis 730 of the first body of revolution 73 trained gear 731 connected. The gear 731 is circumferentially equipped with a toothing, i.e. a toothed circumference, so that in all angular positions of the first rotational body 73 a segment of the toothed circumference 731 for engagement with a locking pin 80a is ready. The gear 731 is about screws 732 with the first solid of revolution 73 connected and within one the first body of revolution 73 enclosing housing part 22a arranged. Central of the gear 731 is a tool approach 733 starting through a hole 220 in the housing part 22a extends, with between the gear 731 and the housing part 22a a ball bearing 734 for the storage of the rotating body 73 is provided. The drive approach 733 is cylindrical in its lower portion, but has an upper portion 733a on, which is designed as a hexagonal head to a rotary movement of an external extension on the first rotary body 73 to be able to transfer.

The locking pin 80a is one of the two legs of the lifting device, which is U-shaped in cross section 80 ' , whose other leg 80b an actuator arm 80b forms on the top of the housing part 22a rests and is therefore guided perpendicular to the stretching. The locking pin 80a and the actuator arm 80b are with a common ground 80c connected, from which a guide pin extends in the opposite direction 80d extends, which an opening of the larger part of the actuating arm covering further housing part 22b interspersed. Against the housing part 22b one end and against the base 80c the lifting device 80 ' other end is a spring element 81 , which is designed as a helical compression spring, arranged that the lifting arrangement 80 ' radially towards the gear 731 pretensioned.

That of the base 80c remote end of the locking pin 80a has a front toothing 80e on, the radial engagement with the circumferential toothing 731 prevents the drive as a whole from rotating, and thus in particular the first rotating body 73 blocked. That as a load spring 81 trained spring element prevents that by applying a torque due to the tension element 71 or due to other external forces, the lock is released so that whenever the locking pin 80a is engaged, the entire structure in its position over the tension element 71 is locally fixed.

At its base 80c the remote end has the actuating arm 80b a vertically upstanding hook-like end region with 80f with a recess 80g and an edge 80h on. The end area 80f is designed here as a rigid part that points in the direction of the axis 730 of the drive approach 733 protrudes radially.

In 4th is also a drive extension 86 shown before moving on to the drive approach 733 was attached. It can be seen that the drive extension 86 a cylindrical blind hole 86a has that over the cylindrical portion of the drive attachment 733 can be pushed, as well as a hexagon socket with the external hexagon 733a matching further blind hole section 86b has, whereby the drive extension rotatably fixed to the first rotary body 73 can be coupled.

The drive extension 86 is in the present case designed as an adapter piece that can be connected to an external drive means such as a crank or a cordless screwdriver. To this end, the drive extension 86 on the the drive approach 733 remote side a tool attachment designed as a hexagon 86c on that with an external drive means 87 , which is only shown schematically here, can be coupled. The drive extension 86 furthermore has a conical outer section 86d on to which there is a return 86e before the drive extension connects to a cylindrical outer circumferential section 86 to the tool approach 86c rejuvenates.

In 4th is the drive extension 86 not yet with the drive approach 733 of the first body of revolution 73 connected so that the spring element 85 the locking pin 80a radially against the toothing 731 presses and thus prevents a rotary movement. In 4th is the drive extension 86 completely on the drive approach 733 of the first body of revolution 73 attached, with the conical shape of the outer circumference 86d the drive extension 86 when sliding onto the drive attachment 733 the end 80f of the confirmation arm 80b against the bias of the spring element 85 displaced radially outward until the conical circumference with its maximum extension into the recess 80g penetrates and at the same time the edge 80h of the end area 80f against the rebound 86e rests and thus from the spring element 85 is held in place, as in 5 to recognize. This secures the spring element 85 at the same time the drive extension 86 against unintentional pulling out during manipulation with an external drive means such as a crank 87 .

One recognizes in 5 that the locking pin 80a and its frontal toothing 80e after a sufficient distance from the gear 731 are held so that now there is no blocking of the rotational movement of the first rotational body 73 more is given. About the tension element 71 on the first body of revolution 73 Acting forces then have to go through the external drive means 87 or the operator applying a force to this can be applied.

In 6th is to be recognized that the end area 80f of the operating arm 80b is comparatively narrow and has only a linear or substantially linear contact with the drive extension 86 or its conical outer circumference 86d and return 86e provides so that the drive extension 86 when actuated due to the crank 87 despite the low load of the spring element 85 can move along the recess and the edge during its rotational movement.

You can see that the locking pin 80a the rotatable first cylinder 73 positively blocked and in particular prevents the drive 80 the first cylinder 73 to a relative movement with respect to the tension element 71 caused. Hence the blocking of the first cylinder 73 the preferred option, the tension element 71 at the same time to block and prevent movement in the drive system 70 and the pulleys 75a , 75b , 75c comes.

The invention has been described above on the basis of an exemplary embodiment in which the locking of the distal slide 32 'is via the locking pin 80a , the first solid of revolution 73 and the tension element 71 he follows. It goes without saying that, in addition, a mechanical locking of the top frame with the substructure can also be provided.

The invention has been described above using an exemplary embodiment in which the tension element 71 the top frame 16 or the two frame halves 16.1 , 16.2 on both distal slides 32 ' that are over the spar 34 ' are interconnected, drives. If the top frame is designed to be sufficiently stable, the drive can also only take place from one side, with an end carriage of the top frame then ensuring a uniform transmission of the force to the slides arranged on both sides.

The invention has been described above using an exemplary embodiment in which the spars 34 , 34 ' are essentially designed as U-shaped brackets. It goes without saying that, instead of the U-shaped bracket, elongated bows are also used in the opposite carriages 32 can connect with each other, which then no longer come off the carriage upwards. It is also possible that the carriages opposite with respect to a longitudinal bisector of the tarpaulin structure are not connected to one another at all by an immovable spar, but only via a bracket, such as the bracket, which is articulated to the carriage 36 . Here, however, the articulated connection can comprise folding panels, as are known from sliding roofs for truck bodies, which carry a so-called lifting bow.

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• WO 9633882 A1 [0003]
• US 3964781 A [0004]
• DE 10224157 A1 [0005]
• DE 1225976 A [0006]
• US 20150188481 A1 [0007]
• DE 102008022870 B3 [0008]
• DE 102017111138 A1 [0009]
• DE 102012106804 A1 [0010]
• US 4203174 A [0011]
• DE 202014006904 U1 [0012]
• DE 202018104786 U1 [0013]

Claims (10)

Obvious structure for a substructure (14), such as a self-propelled truck, a truck, a semitrailer, a trailer, a container, a tipping body, a railway wagon, a building or the like, comprising a foldable top frame (16), one attached to the top frame ( 16) connectable cover (12), in particular a tarpaulin, and a drive device (70) for folding in and / or unfolding the top frame (16), a locking pin (80a) integrating a first rotational body (73) of the drive device (75) The advanced position is blocked and released for rotation in a disengaged position, characterized in that the drive device (70) comprises a drive attachment (733) to which a drive extension (86) of an external drive means (87) can be connected in a rotationally secure manner, and that the locking pin ( 80a) when the drive extension (86) of the external drive means (87) is connected from the advanced position to the disengaged position is carried out. Apparent structure according to Claim 1 , characterized in that the locking pin (80a) is loaded into the advanced position by a spring element (85). Apparent structure according to Claim 1 or 2 , characterized in that the locking pin (80a) has an end-face toothing (80e), that the drive device (70) comprises a toothed circumference (731), and that in the advanced position the toothing (80e) engages the drive device (70) blocked with the toothed circumference (731). Apparent structure according to one of the Claims 1 to 3 , characterized in that the locking pin (80a) is transferred from the advanced position to the disengaged position by acting on an actuating arm (80b). Apparent structure according to Claim 4 , characterized in that the actuating arm (80b) protrudes radially in the direction of the drive extension (733) and, when the drive extension (86) is connected to the drive extension (733), the actuation arm (80b) and the locking pin (80a) radially outwards into the moved to the disengaged position. Apparent structure according to one of the Claims 4 to 5 , characterized in that the drive extension (86) has a conical circumferential section (86d) which, when connected to the drive extension (733), displaces the actuating arm (80b) and the locking pin (80a). Apparent structure according to one of the Claims 4 to 6th , characterized in that the actuating arm (80b) has an end region (80f) with a recess (80g) and an edge (80h), that the conical peripheral section (86d) of the drive extension (86) has a radial recess (86e), and that the edge (80h) penetrates into the radial recess (86e) under the load of the spring element (85) and secures the conical circumferential section (86d) against unintentional pulling out. Apparent structure according to one of the Claims 1 to 7th , characterized in that the drive attachment (733) is provided as an extension of a rotation axis (730) of the first rotation body (73) of the drive device (70), the drive device (70) preferably being arranged on an end face of the substructure (14) which is provided transversely to the longitudinal sides, along which the top frame (16; 16.1, 16.2) is displaced. Apparent structure according to one of the Claims 1 to 8th , characterized in that the external drive means is a crank (87) or a motor-driven tool such as an impact wrench, a pneumatic drill, a hydraulic turbine, an internal combustion engine or a cordless screwdriver. Apparent structure according to one of the Claims 1 to 9 , characterized in that the top frame (16) comprises a first frame half (16.1) with a first tarpaulin half (12.1) that can be connected to it and a second frame half (16.2) with a second tarpaulin half (12.2) that can be connected to it, and that the drive device (75 ) the first frame half (16.1) and the second frame half (16.2) can be shifted synchronously either in one direction away from each other into an open end position or toward each other into a closed end position.

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