DE4439842A1 - Transportable roofing system for outdoor workers - Google Patents

Abstract

The roofing system comprises a stretched cover (1) which has a rectangular form in the extended state. The total centre of gravity of the roofing system in the vertical projection of the surface of the cover is arranged on the ground at the edge or outside the surface of the cover. The stretched cover can be wound up on a roller (3) which extends parallel to an outer side of the rectangular shape of the cover. The cover has a number of folding edges which can be pushed together in the manner of a concertina.

Description

The invention relates to a portable roofing according to the preamble of claim 1.

It is often necessary to have an outdoor work area to cover against the weather to work underneath to protect people from wind, rain, snow and sun Zen. Such protective measures have an advantageous effect protect the health of people working outdoors zen and reduce the rate of sick leave.

For example, transportable canopies are in one known tent-like shape, which when working on the phone the excavated pit. Such a tent shaped canopies, however, are not working for other areas can be used.  

Although it is possible to use standard parasols, which have an extendable screen covering that from a supporting structure and a foot part is held. Each but the possible uses of the well-known suns umbrellas for protective roofing in the open air also limited.

It is therefore an object of the invention to be a portable To create canopy in a wide application area is applicable.

The object of the invention is characterized by the features of the spell 1 solved.

According to the portable roof consists of a screen covering, which in the extended state has a rectangular shape. Next is fiction significant that the overall focus of the roofing in the vertical projection of the area of the open umbrella area on the floor at the edge or outside the projector th floor area.

Due to the inventive measure, a self-supporting Canopy created, its focal point base is outside the work area. With conventional Such use is not possible for parasols, because that's in the center of the screen covering tense surface arranged foot part extremely disruptive.

According to a development of the invention, the trans portable roofing the shape of an awning that in particular on two or more articulated arms the umbrella fabric extends. The screen covering can be on a Roll wound up or several parallel to each other have running folding edges, so that an accordion  like pushing or pulling apart possible is.

According to another further development, it is essential to the invention that that the focus-forming foot part is a work machine or is a motor vehicle. In particular, it can the main focus of the work machine around a screed act machines that work even with high wind loads cantilevered screen covering ver a safe stand borrows.

Due to the inventive measures can be rectangular unfolded umbrella coverings that increase in length are larger than in width. In all cases in particular a work car, a motor vehicle or a building machine a safe center of gravity. Also Trapezoidal screen coverings are considered to be in scope viewed the invention lying.

The cited sub-claims show advantageous further educations in any meaningful way in their Characteristics among themselves or with the characteristics of the head are combinable.

The invention will be described in more detail below with the aid of the drawing described. Show it:

Fig. 1 a first embodiment of the invention;

Fig. 2 is a side view of a second embodiment of the invention;

FIG. 3 shows the side view from FIG. 2 with an extended screen covering;

Fig. 4 is a direction from the front of the second imple mentation form with the screen covering extended, and

Fig. 5 shows a third embodiment.

Fig. 1 shows a first embodiment of the invention, in which the transportable roof has a foot part 25 in the form of a frame. The frame-shaped foot part 25 has rollers 26 on the back and anchoring elements 27 on the front. The canopy can be transported to another location by means of the rollers 26 and can be securely positioned by the anchoring elements 27 , which for example form rod-shaped tips. Depending on the application, the frame of the foot part 25 can also have other shapes and be designed, for example, trapezoidal or triangular.

On the top of the foot part 25 , vertical guide tubes 30 , 31 are formed, which are arranged in parallel at a distance from one another. The guide tubes 30 , 31 take on struts 28 , 29 . By means of transverse bores 32 in the holding struts 28, 29 and transverse holes 33 in the tubes 30 guide, 31, the support struts 28, 29 in the height and the depth of penetration in the guide tubes 30, 31 adjusting bar.

At the top, the struts 28 , 29 are connected to a cross member 7 according to the embodiment shown in FIG. 1. Holding struts 28 , 29 and the cross member 7 together form a U-shaped bracket which stanchions 32 , 33 with respect to the foot part 25 is adjustable in height by means of the Querboh.

The cross member 7 forms an essential part of the invention and carries two Ge articulated arms 8 , 9 according to the embodiment shown in FIG. 1. The articulated arms 8 , 9 extend from the cross member 7 to an end strut 16 . To prevent accidents in the area of the front strut 16 , which also applies to other edges of the portable canopy, Signalele elements 17 , 18 are provided, which are, for example, turn signals. In the middle region, the Ge articulated arms 8 , 9 joints 11 , 14 . Likewise, the connec tion is effected by the front ends of the articulated arms 8 , 9 to the front strut 16 by joints 12 , 15 . In addition, joint holders 23 , 24 are provided in the region of the cross member 7 , which bear joints 10 , 13 and thus establish the mechanical connection to the joint arms 8 , 9 . The articulated arms have spring elements inside, which cause the Ge articulated arms 8 , 9 to automatically stretch. The automatic stretching of the articulated arms 8 , 9 is, however, from a screen covering 1 , which can be a Marki senstoff or some other covering, be true. The screen covering 1 can be unwound from a roll 2 by means of a hand crank 3 . The role 2 is carried over a shaft 4 and support struts 5 , 6 also from the Tragkon construction, which form the cross member 7 and the support struts ben 28 , 29 . At the front end, the Schirmbespan voltage 1 is connected to the front strut 16 , which is why the spring-loaded articulated arms 8 , 9 can only move the front strut 16 as far forward as the screen covering 1 was unwound from the roll 2 . Instead of the hand crank 3 , a motor drive can also be provided.

In the embodiment shown in Fig. 1, the screen covering 1 of the portable canopy in the extended area mainly from the articulated arms 8 , 9 wear. In other embodiments, instead of the articulated arms 8 , 9 and the roller 2, folding edges can be provided which extend parallel to the front strut 16 . Guided in side arms, the screen covering 1 can be pushed together or pulled out like an accordion.

It is essential to the invention that the screen covering 1 spans an area of rectangular shape. Under a rectangular shape, a square and a trapezoidal area is also considered, for example, by keeping the screen tension 1 wider in the area of the end strut 16 and narrower in the area of the roll 2 . Furthermore, it is essential to the invention to keep the screen covering 1 longer in the length or the distance between the roller 2 and the front strut 16 than in the width which corresponds essentially to the roller 2 . For this purpose, the Ge articulated arms 8 , 9 are attached in the region of the joint holder 23 , 24 in a geous manner at different heights. This inventive measure has the effect that the articulated arms 8 , 9 can be folded over one another in the bent state, since according to the embodiment shown in FIG. 1 the articulated arms 8 , 9 in the area of the joints 11 , 14 are folded parallel to the plane which Cover covering 1 . Likewise, the front ends of the articulated arms 8 , 9 are attached at different heights in the area of the front strut 16 to compensate, which rods 43 , 44 (see FIG. 2). Thus, the articulated arms 8 , 9, despite the excess length with the forehead retracted, strut 16 beneath the screen covering 1 protectively. The articulated arms 8 , 9 have twice the length of the width of the screen covering 1 . Preferably, the articulated arms 8.9 are approximately one meter longer than the cross member 7 or a cross member 40 , which will be described below.

In other embodiments, the articulated arms 8 , 9 can also bend in the direction of the foot part 25 by means of the articulations 11 , 14 , so that the articulated arms 8 , 9 lie essentially parallel to the holding struts 28 , 29 in the retracted state of the screen covering 1 . It is also possible to provide scissor grids instead of the articulated arms 8 , 9 (Nuremberg scissors), which are attached laterally to the holding struts 28 , 29 or extend parallel to the plane of the screen covering 1 .

In the extended state, side tarpaulins can be attached to the long and long sides of the screen covering 1 in order to provide additional protection for the person working underneath. It has been shown in an advantageous manner that high wind loads can be absorbed precisely when the articulated arms 8 , 9 are used due to their spring action. If the wind blows, for example, the screen covering 1 like a canvas, the articulated arms 8 , 9 give in under a spring elastic. In this way, a break from the articulated arms 8 , 9 will avoid the large wind loads. However, it is possible to provide additional support struts 18 , 19 which are hung on the front strut 16 and stand on the floor with plate feet 21 , 22 . As indicated by dash-dotted lines in FIG. 1, the plate feet 21 , 22 can form containers which can be filled with sand or water, which increases stability.

A particularly high lateral stability results if the articulated arms 8 are longer than the front articulated arms 9 .

In addition, it is essential to the invention that the cross member 7 , the axis 4 of the roller 2 and the end strut 16 are aligned parallel to one another.

It is also important that when the screen covering 1 is in the extended state, the overall center of gravity of the portable roofing is not in the central region of the surface which can be projected perpendicularly onto the floor starting from the screen covering 1 . Rather, the overall center of gravity, which is mainly determined by the foot part 25 , lies in the edge area or outside the projected floor area. In other words, the focal point with a view of the extended screen covering voltage 1 would lie in the top view according to the embodiment shown in FIG. 1 in the area of the roller 2 or the cross strut 7 . In addition, the center of gravity of the foot section 25 causes the center of gravity to lie low and the portable roofing thus obtains a high level of stability, which is additionally supported by the frame-like shape of the foot section 25 . In fact, the Schirmbespan voltage 1 according to the invention extend much further than is shown in Fig. 1, so that the screen covering 1 causes a large ge protected working surface in the vertical projection onto the floor. In this work area, a person can move freely and is not hindered by a foot section that creates a focus. For example, such a canopy at Re gen can drive to an accident vehicle, the screen covering 1 advantageously covering the accident area and additionally the foot part lying outside the work area. The foot part is essential to the invention to bring about the high stability of the cantilevered tension, without hindering the working field. For example, the screen covering can have a width of 2 m and a length of 4 m.

Moreover, it is possible in other embodiments, the inclination angle of the extending members, which according to FIG. 1, the pivot arms 8, 9 correspond to variable Stalten ge. For this purpose, additional adjusting joints would be hen in the area of the joint holders 23 , 24 and the cross member 7 , the axes of which lie parallel to the cross member 7 .

Preferably, the front strut 16 forms the highest point of the canopy, so that water flows in the direction of the foot part or the canopy can be placed over high sand hills. The roofing differs significantly from an awning that is lowered at the front.

While FIG. 1 shows a foot part 25 in the form of a frame construction, FIGS . 2-4 show a foot part in the form of a center of gravity in the form of a construction machine. Nevertheless, it is possible to fasten the embodiment shown in FIG. 1, for example, on the roof of a motor vehicle. FIG. 2 shows a side view of a second embodiment in which the center of gravity of the foot part 25 ( FIG. 1) is a vehicle 35 , in particular a screed machine. The vehicle 35 is mounted on wheels 37 and can be coupled, for example, to a towing vehicle with a trailer coupling 38 . The center of gravity 51 of the vehicle 35 lies outside the screen covering 1 which is mounted in the trans port position in FIG. 2. In the embodiment according to FIGS. 2-4, the guide tubes 30 , 31 engage the vehicle 35 by means of a support plate 36 . The retracted canopy is supported at one end by a transport lock 39 and at the other end by the bow-shaped construction from the holding struts 28 , 29 with the cross member 7 .

If the attachment 49 is released in the area of the transport lock 39 , the entire canopy can be pivoted about a swivel joint 50 . Fig. 3 shows the tilted position is at 90 ° of the roof with extended screen fabric 1. In particular in Fig. 3, the different heights of the articulated arms 8 , 9 can be seen particularly well.

FIG. 4 shows the partially extended covering 1 in the direction of the arrow X in FIG. 3. In FIG. 4, the vehicle 35 is only indicated by dashed lines. Likewise, Fig. 2 shows the different height arrangement of the link arms 8, 9, which is provided by the dotted lines at a distance "h" represents. However, Fig. 2 shows the articulated arms 8 , 9 in the folded state because the fabric 1 is completely wound on the roll 2 . Also in Fig. 2, the compensation rods 43 , 44 are particularly recognizable, which produce the connection of the articulated arms 8 , 9 to the front strut 16 without mutual interference.

The swivel joint 50 , which has a plug-in pin which enables the screen covering 1 to be brought to the vehicle 51 in different directions, is particularly advantageous. In particular, the swivel 50 causes that the portable canopy can be transported safely with the vehicle 35 and thus forms a physical unit. To secure the folded Ge articulated arms 8 , 9 stop struts 45 , 46 with supports 47 , 48 are provided. The articulated arms 8 , 9 are in the area of the Ge joints 10 , 13 fastened by means of screw connections 52 , 53 to bracket holders 23 , 24 ( FIGS. 2 and 4). The bow-shaped joint holder 23 , 24 cause the joints 10 , 13 to be screwed in with adjustable offset. Thus, the extension path for both articulated arms 8 , 9 can be set to the same length. Likewise, it can be in the compensating bars 43 , 44 which strut perpendicular to the forehead 16 to be threaded rods, so that there is an adjustment possibility to align the front strut 16 parallel to the cross member 7 . To adjust the height of the holding struts 28 , 29 by means of the transverse bores 32 , 33 , securing elements 34 are provided, as in FIG. 1, which are simply inserted laterally into the transverse bores and spinned. Referring to FIG. 2, the transportable enclosure, which is aligned in the direction of travel, in addition be covered with a protective film or tarpaulin, around an outer Ver avoid contamination.

The swivel joint 50 proves to be extremely advantageous in aligning the clothing in different directions, where the vehicle 35 or the machine forms an outside safe center of gravity. As can be seen in FIG. 4, 50 auxiliary bores 54 , 55 can be provided in addition to the swivel joint, so that a lateral offset of the entire roof is brought about when the swivel joint is arranged in the secondary bore 54 , 55 . To simplify the drawing, only two secondary bores are provided, and in other embodiments it is possible to design 7 additional secondary bores in the case of longer cross members. To un support the swivel 50 , a circular plate can also be provided which engages the cross member 7 .

A further difference from FIG. 1 can be seen particularly from FIG. 4. In Fig. 1, only one cross member 7 is provided. Deviating from this, a further cross member 40 is provided in the embodiment according to FIGS. 2-4, which rests on the cross member 7 . Thus, the cross member 40 forms a first cross member which carries the entire supporting structure, finally the screen covering 1 , and the cross member 7 a second cross member, which provides the connection and support to the vehicle 35 . Both cross members 7 , 40 together with an axis form the actual Drehge steering 50th Consequently, the holding struts 5 , 6 from FIG. 1 in the embodiment according to FIGS. 2-4 engage the first cross member 40 via fastenings 41 , 42 . The fastenings 41 , 42 can be designed as lockable swivel joints, so that the angle of inclination of the extended covering around the cross member 40 can be changed.

According to the invention, the embodiments according to FIGS. 2 to 4 have stops 56 and 59 . The stops 56 , 59 are formed on the cross member 40 . The first stop 56 serves to bring the canopy safely into the transport position in the pivoted state. For this purpose, the cross is pushed forward in the direction of the transportation lock 39 beam 40, until the stop 56 with the transport Siche tion 39 engages. The position of the stop 56 is dimensioned such that a transport securing bore 63 in the cross member 40 coincides with the bore in the cross member 7 , so that the bolt which belongs to the swivel joint 50 can be inserted. In the transport position, the swivel joint 50, together with the transport securing bore 63 , does not form a swivel joint, but a fastening element.

If the cross member 40 is to be brought into the operating position from the transport position, the cross member 40 is pulled as far to the right in FIG. 2 until a bore 60 coincides with the bore in the cross member 7 . Then the previously removed pin is inserted through the bore 60 through to the cross member 7 . The second impact 59 , which is laterally attached to the cross member 40 , serves to limit the feed of the cross member 40 so that the bore 60 with the bore in the cross member 7 is congruent. In a further operation, the cross member 40 is pivoted about the rotary joint 50 after inserting the bolt. In order not to hinder this pivoting movement, the second stop 59 is formed laterally on the cross member 40 and not like the first stop 56 on the underside of the cross member 40 . The transport Siche tion 39 is spaced from the cross member 7, that the cross member 40 and the carrier can always slide on the transport device 39 to the cross. 7

Furthermore, guide pins 57 , 58 are provided, which are fastened to the cross member 7 . The two guide pins 57 , 58 surround the cross member 40 on both sides ( FIG. 2). Thus, the two guide pins 57 , 58 are opposite each other at a distance of approximately the width of the cross member 40 . When pushing the cross member 40 from the transport position into the operating position and vice versa, the guide pins 57 , 58 thus secure the entire upper unit, which has the screen 1 , from sliding sideways.

Furthermore, the guide pins 57 , 58 are preferably arranged symmetrically to the borehole in the cross member 7 , into which the bolt which forms the swivel joint 50 is inserted. The guide pins 57 , 58 essentially form extensions of the side surfaces 61 , 62 of the cross member 7 and are perpendicular to the rotational plane of the swivel joint 50 . A guide pin 57 , 58 is formed on each of the side surfaces 61 , 62 . The guide pins 57 , 58 are not attached to a single side surface 61 or 62 . Thus, the guide pins 57 , 58 lie in the top view of the swivel joint 50 on an imaginary axis that crosses the swivel joint 50 . This arrangement causes the cross member 40 on the one hand between the two guide pins 57 , 58 slidably GE and on the other hand when reaching the bore 60 of the swivel joint 50 , according to the arrangement shown in Fig. 2 in the top view is pivotable counterclockwise. In addition, the guide pins 57 , 58 limit the pivoting angle to 90 °, whereby the cross member 40 extends parallel to the cross member 7 .

Fig. 5 shows a third embodiment in which the Ge articulated arms 8 , 9 without height offset and without hinge brackets 23 , 24 (see FIG. 2) are attached to the cross member 40 . Likewise, there is no height offset on the attachment to the front strut 16 . The articulated arms 8 , 9 are dimensioned so that they do not interfere with one another when they buckle.

In all embodiments, the canopy can be divided into two essential units. The first unit comprises the foot part with the cross member 7 . The second structurally manageable unit comprises the screen 1 with the associated support elements such as the cross member 40 . It is thus possible to fasten structurally identical upper parts to the screen 1 for different foot parts, for example according to FIG. 1 or FIG. 2. Here, the foot section adapts to the respective vehicle, while the upper section is constructed for all applications for cost reasons. This reduces the stockkeeping and the upper part with the screen 1 can be fed un diverse applications with the same construction.

Reference list

1 screen covering
2 roll
3 hand crank
4 wave
5 support strut
6 support strut
7 cross beams
8 articulated arm
9 articulated arm
10 joint
11 joint
12 joint
13 joint
14 joint
15 joint
16 front strut
17 signal element
18 signal element
19 support strut
20 support strut
21 plate base
22 plate base
23 articulated holder
24 joint holder
25 foot part
26 rolls
27 anchoring element
28 support strut
29 support strut
30 guide tube
31 guide tube
32 cross hole
33 cross hole
34 securing element
35 vehicle
36 support plate
37 wheels
38 trailer coupling
39 Transport lock
40 cross beams
41 attachment
42 attachment
43 compensation rod
44 compensation rod
45 stop strut
46 stop strut
47 edition
48 edition
49 attachment
50 swivel
51 focus
52 screw connection
53 screw connection
54 secondary bore
55 secondary bore
56 first stop
57 guide pins
58 guide pins
59 second stop
60 hole
61 side surface
62 side surface
63 Transport securing hole

Claims (37)

1.Transportable canopy, which has an extendable screen covering, a supporting structure which supports the screen covering at a distance from the ground, and a movable foot part which is connected to the supporting structure and has a low center of gravity of the canopy,
characterized,
that the screen covering ( 1 ) has a rectangular shape in the extended state, and
that the overall focus of the roof in the perpendicular projection of the area of the screen covering on the Bo is arranged on the edge or outside the area of the screen covering ( 1 ). 2. Roofing according to claim 1, characterized in that the screen covering ( 1 ) on a roll ( 2 ) is wound up bar, which extends parallel to an outside of the rectangular shape of the screen covering ( 1 ). 3. Canopy according to claim 1, characterized in that the screen covering ( 1 ) has a plurality of parallel folded edges which can be pushed together like an accordion. 4. A roof according to claim 2 to 3, characterized in that an end strut (16) is formed on one side of the umbrella covering (1), which forms the leading edge of the fabric (1) and extending parallel to the roller (2), or extends the folded edges. 5. Roofing according to claim 2 to 4, characterized in that a carrier ( 7 , 40 ) is provided which carries the role ( 2 ) or the collapsible screen covering ( 1 ). 6. Roofing according to claim 2 to 5, characterized in that the cross member ( 7 , 40 ), the front strut ( 16 ) and the roller ( 2 ) or the parallel folded edges run parallel to each other. 7. Roofing according to claim 2 to 6, characterized in that the cross member ( 40 ) forms a first cross member, that the cross member ( 7 ) forms a second cross member which is connected to the foot part ( 25 ), and that between the first Cross member ( 40 ) and the second cross member ( 7 ), a swivel ( 50 ) is provided, which enables lateral pivoting of the screen covering ( 1 ) around the foot part ( 25 ). 8. Roofing according to claim 5 to 7, characterized in that the first cross member ( 40 ) parallel to the second cross member ( 7 ) is laterally displaceable. 9. Roofing according to claim 4 to 8, characterized in that between the front strut ( 16 ) and the cross member ( 7 , 40 ) articulated arms ( 8 , 9 ) are formed. 10. Canopy according to claim 9, characterized in that the articulated arms ( 8 , 9 ) are biased with springs and self-extending. 11. Roofing according to claim 9 to 10, characterized in that the articulated arms ( 8 , 9 ) by means of joints ( 11 , 14 ) parallel to the plane of the screen covering ( 1 ) are a kink. 12. Roofing according to claim 9 to 11, characterized in that the articulated arms ( 8 , 9 ) by means of joints ( 10 , 13 ) and articulated holders ( 23 , 24 ) on the cross member ( 7 , 40 ) are attached at different heights. 13. Roofing according to claim 9 to 12, characterized in that the hinge brackets ( 23 , 24 ) are attached to adjustable U-shaped rectangular brackets, the span of which is larger than the dimensions of the hinge bracket ( 23 , 24 ). 14. Roofing according to claim 12 and 13, characterized in that the articulated arms ( 8 , 9 ) by means of joints ( 12 , 15 ) and compensation rods ( 43 , 44 ) on the front strut ( 16 ) are attached. 15. Roofing according to claim 14, characterized in that the compensating rods ( 43 , 44 ) parallel to the axes of the joints sen ( 12 , 15 ) and have different lengths. 16. Roofing according to claim 1 to 15, characterized in that the screen covering ( 1 ) has a certain width and the extendable length is greater than the width. 17. Canopy according to claim 16, characterized in that the screen covering preferably a width of 3 m and has a length of 4 m. 18. Roofing according to claim 1 to 17, characterized in that the screen covering ( 1 ) based on the Bo on the foot part ( 25 ) is adjustable in height. 19. Roofing according to claim 1 to 18, characterized in that the end strut ( 16 ) about the cross strut ( 7 , 40 ) as an axis of rotation can be raised by an angle of inclination or lowered. 20. Roofing according to claim 9 to 19, characterized in that on the cross member ( 7 , 40 ) transport-securing struts ( 45 , 46 ) with supports ( 47 , 48 ) are provided for a bent articulated arms ( 8 , 9 ). 21. Roofing according to claim 1 to 20, characterized in that warning signals ( 17 , 18 ), in particular at the corner points of the screen covering ( 1 ) are formed. 22. Roofing according to claim 1 to 21, characterized in that the screen covering ( 1 ) is an awning cloth. 23. Roofing according to claim 4 to 22, characterized in that on the end strut ( 16 ) support struts ( 19 , 20 ) are formed which extend to the bottom or the foot part ( 25 ). 24. Roofing according to claim 23, characterized in that the support struts ( 19 , 20 ) plate feet ( 21 , 22 ) sen, which form in particular fillable with water or sand loading containers. 25. Roofing according to claim 1 to 24, characterized in that the end strut ( 16 ) is arranged higher than the roller ( 2 ). 26. Roofing according to claim 1 to 25, characterized in that the screen covering ( 1 ) in the retracted state to secure transportation with the cross member ( 40 ) about the swivel joint ( 50 ) is pivotable and displaceable transversely to the cross member ( 7 ). 27. Roofing according to claim 26, characterized in that a supporting transport lock ( 39 ) is provided for the roofing. 28. Roofing according to claim 7 to 27, characterized in that the cross member ( 7 , 40 ) is supported by the swivel joint ( 50 ) and a rod-shaped transport lock ( 39 ), which is spaced from the swivel joint ( 50 ) on the car or attached to the machine. 29. Roofing according to claim 1 to 28, characterized in that on the cross member ( 40 ) first stops ( 56 ) are formed, which come into engagement in the transport position of the cross member ( 40 ) with the transport lock ( 39 ). 30. Roofing according to claim 1 to 29, characterized in that on the cross member ( 40 ) second stops ( 59 ) are formed, which in the pivoting position of the cross member ( 40 ) around the joint ( 50 ) with the cross member ( 7 ) of the holder come into engagement. 31. Roofing according to claim 1 to 30, characterized in that on both sides of the cross member ( 40 ) on the cross member ( 7 ) guide pins ( 57 , 58 ) are formed, which have a distance in the width of the cross member ( 40 ). 32. Canopy according to claim 31, characterized in that the guide pins ( 57 , 58 ) on both sides to the swivel joint ( 50 ) are arranged. 33. Canopy according to claim 31 and 32, characterized in that an insertion pin ( 57 , 58 ) is formed on opposite side surfaces ( 61 , 62 ) of the cross member ( 7 ). 34. Canopy according to claim 31 to 33, characterized in that the guide pin ( 57 , 58 ) limit the pivoting angle of the cross member ( 40 ) from the transport position in the loading operating position to 90 °. 35. Canopy according to claim 1 to 34, characterized in that the roof consist of two structurally separately manageable units, the first unit comprising the bracket and the second bracket the screen ( 1 ) with the respective supporting parts. 36. Canopy according to claim 1 to 35, characterized in that the foot part ( 25 ) is a screed machine, a construction machine, a work vehicle, a fire engine, a crane kenwagen, a market vehicle, a caravan or a cam ping vehicle. 37. Canopy according to claim 1 to 36, characterized records that the roof in the retracted state with a tarpaulin can be covered.