DE3611431C2 - Scaffolding support for bridging sidewalks - Google Patents

Description

The invention relates to a scaffold support device for Sidewalk bridges with several spaced apart Supports that can be supported on the ground, each pair wise upper cross struts and other stiffeners and which have a horizontal protective cover over the passage area (walkway passage space).  

Scaffolding can often be erected over sidewalks. So that the going through the bottom field of the scaffold Passersby not endangered are appropriate Protective covers required. Especially with new buildings are usually still wooden constructions today dense board formwork used. Especially after work on buildings, especially facades working, it is common for through traffic according to the lower scaffolding fields to be designed to build the individual local conditions. Here if the space permits, lower ones Through frame used, which consists of vertical Support one tube and one upper one directly welded lattice girder with corner or gusset plates are formed. Then on the lattice girders Scaffolding planks, planks, frame panels or the like hung up. The cross bracing of the individually so opened The passage frame is made using couplings connected horizontal tubes that also serve as railings can serve and with according to the respective system bringing diagonal bars. Railings can also be used angled end parts for hanging in bags or Box, if necessary with a wedge or pinning be seen. All these for the bracing and the Further protection required elements are located however in the passage area and stand over the single NEN tubes inwards or outwards, so that passers-by themselves and the items they carry, such as bags and other goods. Another Disadvantage of the passage welded together The frame is that they are the individual width ver conditions can not be adjusted and that one in cases where the pre-made passage frames are not usable, too elaborate, individual structures with pipes and couplings, which also harbor the danger that the  lower fields are not placed exactly enough to then a certain dimensions and compliance speaking angle, quick to assemble Erect scaffolding. The individual pipes of this subcon In many cases, structures are not sufficient to To carry loads of high scaffolding. Above all, these are increasing Load when you have one above the passage area Wants to create material storage space, since you are in the lowest Level must keep the passage clear.

Such a walkway bridging with those mentioned in the preamble of claim 1 Features are known from German Offenlegungsschrift 34 16 482.

Triangular supports made of three tubes are also known through transverse, welded-in Ver Ver binding plates of about 220 mm in length are bound. These supports are designed for heavy loads can also be used in conjunction with the usual scaffolding Use material to create passages. The up However, wall is big and not all requirements easy to accomplish that at a sensible passage be put.

The invention has for its object a scaffold support device for bridging walkways with the one gangs mentioned characteristics so that they easily adaptable to individual circumstances, quickly mountable and free of obstructions in the passage area Connection elements is.

According to the invention it is provided that the supports with each two vertical tubes are formed which are transverse to the through direction are at a distance of a little more than one to a few multiples of the pipe diameter is that the vertical tubes in the area of the lower Ends at least one lower cross strut with connecting means for a height-adjustable foot section and in the upper end rich connection means for the upper cross struts and / or have scaffolding elements to be connected upwards.  

The fact that two parallel and transverse to the passage directional pipes form the support of each side, you now have the in a particularly advantageous manner Possibility to connect all parts, such as railings, Cross struts, longitudinal struts and the like between to accommodate the two pipes and the pre see connection means in this intermediate area bring to. So they do not hinder the free passage and do not pose a risk to passers-by and goods. The necessary lower cross connection is also in advantageously with suitable height adjustment means equipped to deal with the ground conditions quickly to be able to adapt. The upper end area makes sense designed so that on the one hand with the respective in Considering scaffolding elements further up build, connect firmly and the appropriate forces can support that on the other hand, however, the lying here Cross struts suitable connection means for the Ver bond to the other double pipe supports that the individual design according to the respective Be allow the needs, so the width of the Passes and the number of lines to be set up for each level Support the respective needs, for example for a larger storage space on the second level, can meet. The construction is simple. The Forces occurring in the lowest area can be good be supported and you can see the individual Adapt needs well.

In an advantageous development of the invention at least in the upper end area of the supports connection intended for diagonal struts.

For attaching cross struts and in particular Railings can be up to a height of about 1 m, preferably as several connection elements for between the two  Vertical pipes, horizontally inserted railings and / or ver efforts should be provided. These can be more advantageous Design as known pockets or Insert box, preferably with safety wedges, Tilting pins or the like, for tube insertable with hooks elements.

Particular attention is paid to the upper cross brace to dedicate, since it serves several purposes and much complex, individual commitment. You can expediently with a laterally projecting, preferably welded-on hollow profile part his. A connection can be made in or via this element for at least one further cross-connecting Hollow profile with associated support insertable or be connectable. So you have a kind of telescope bare, even different distances between the supports easily enabling cross connection and thus has the through gangway frame in two quick-connect supports upper cross-connection parts and connection aids dissolved, which advantageously the diverse Allow adjustments to needs.

The upper hollow section, which is the cross brace participates, can be used as suitable in many ways Profile part be formed. Particularly simple, purpose Training is moderate, safe and clear as a rectangular tube, in which a suitable connection Insertable for a telescopic connection is. This allows a connecting pipe to be inserted stuck at different intervals Supports can be fixed, preferably with pins or screws, which are simply inserted and secured accordingly become. One with welded edgewise standing cross sections is formed extremely stable, allows the inclusion of large  Loads and, above all, allows any number Columns to be strung together to cover large areas and / or storage options for high loads to accomplish.

Suitable on or on the cross strut closing means for the horizontal surface elements, such as To create planks, frame boards or the like. These depend on the respective scaffolding system. Here can be used especially for hanging from the end provided hooks that are already in the passage frame usual U-profiles open at the top to be seen. These will be conveniently on the waiter belts of the hollow profiles provided, for example in the formation with trained or additionally raised puts. So are immediate and simple the connection and hanging options for the Protective covers and the running, working and storage areas created.

For connecting the other scaffolding elements upwards are the corresponding to the respective scaffolding system To provide connection means. It is special among them expedient, on the surface of the hollow profile part to provide an upstanding pin. This will preferably with a pipe end support for a scaffold tube to be attached. So can one with a correspondingly short piece of pipe weld the pin and has a clean opening location of the end face of the scaffold tube to be attached. Other connection elements can be there and at other places.

Approximately in the middle between the two vertical tubes one expediently sees a bracing against buckling Cross connection part before.  

In the lower cross strut you bring usefully a short piece of pipe for a foot spindle. So can the solid and stable, common foot spindle simple inserted and used, so that not separate Height adjustment means are required. here we can other aids, if necessary also with the double pipe ver binding or the like., be provided to meet the ever due to height differences in the basic support to be able to fit. You can also because of the Ver using conventional scaffolding tubes with common scaffolding material continue to install with couplings or provide supports, if floor support is not possible. Further Advantages and aspects of the invention go also from the following, based on the drawings drafted part of the description.

An embodiment of the invention is as follows explained using the drawings.

Show it:

Figure 1 is the oblique view of a scaffold part with the scaffold support for the walkway bridging.

Figure 2 is an end view of the passage frame of the scaffold support device with two supports connected by cross struts without other scaffolding parts.

Fig. 3 is a somewhat enlarged view of a post of the passage frame of FIG. 2;

Figure 4 is a vertical section in the plane between the two supports with connected elements according to Fig 1, wherein the cutting plane is indicated only in FIG. 2..;

Fig. 5 is a partial side view of the upper part of a support frame with an attached lower portion of a scaffold;

6 shows a cross section along the line 6-6 in Figure 5, without the lying behind the plane of the drawing elements, but with threaded into the plane of the screw..;

Fig. 7 is a partial vertical section along the line 7-7 in Fig. 5, wherein the screw is laid in the plane of the drawing.

Are the scaffold 10 according to Fig. 1 consists of walkway supports 11, base plates 12, diagonal bars 13 horizontally extending cross members in the form of railing rods 14 and Ge rüstrahmentafeln 15 and assembly frame 51, and one-pipe supports 16, which according to FIG. 1 assembled.

The walkway supports 11 are shown in more detail in FIGS. 2 to 6. They consist of vertical tubes 20 , which were in A from each other transversely to the passage direction of the walkway passage space 21 . The distance A is at least somewhat larger than a pipe diameter, but at most a few pipe diameters, so that the vertical pipes are close together. The vertical tubes 20 are provided at their lower ends 22 with a cross connection 23 . This consists of a welded pipe section 24 and intermediate parts 25 . The pipe section 24 receives the actual spindle 12.1 of the height-adjustable foot spindle 12 , which has a nut part 12.2 with protruding handles 12.3 and a base plate 12.4 of a conventional type. So the sidewalk support 11 is supported adjustable in height. Due to the short kink length and the stable design of the spindle, the force absorbed by two tubes can also be supported here.

Approximately in the middle of the support is a perforated plate welded as a cross-connecting part 28 . The two vertical tubes 20.1 and 20.2 mutually stiffen against buckling.

On the upper ends 29 of the vertical tubes 20.1 and 20.2 , a hollow profile part 30 in the form of an upright standing tube is welded, as can be seen in particular from FIGS . 4 to 7. In the intermediate area between the vertical tubes 20 , a short box section 31 is welded between the two ends 29 of the vertical tubes 20.1 and 20.2 and the hollow profile part 30 , which serves to brace the corner and support the diagonal bars. At a distance B below, an engagement plate 32 is welded between the two vertical tubes 20.1 and 20.2 , on which the upper end 33 of the vertical rod 13 is supported in a conventional manner, as can be seen in FIG. 4. A fast-to-use, known attachment for the diagonal bar 13 is thus created. This has at its lower end the usual half-coupling 34 , with which it is clamped for the purpose of direction slightly height-adjustable on the outer vertical tube 20.2 in the apparent from FIGS . 1 and 4 manner without impairing the interior.

As can be seen particularly well from FIGS. 2 and 3, the hollow profile part 30 is asymmetrically welded onto the two vertical tubes 20.1 and 20.2 . It has a length L, which in practice is approximately 800 mm. With regard to the axis 35 of the outer vertical tube 20.2 , it is welded onto the tube with a distance L1 of about 200 mm overhang, so that with an axis distance of the two vertical tubes of about 168 mm, an overhang inward of about 432 mm remains. At a distance C of about 200 mm, transverse bores 36 are provided for push-through screws 39 shown in detail in FIG. 6, which are to be inserted horizontally and screwed tight. A connecting element 37 is formed as a suitable insertable hollow tube of suitable length D and provided with suitable transverse holes 38 , so that it can be inserted and secured as desired. It serves to attach the second walkway support 11 , as illustrated in FIGS. 1 and 2. Due to the interlocking arrangement, the two sidewalk supports 11 can be telescopically connected to each other to form a rigid passage frame.

To attach further scaffolding parts, a push-on pin 40 is provided above the outer vertical tube 20.2 and protrudes from a short pipe section 41 . Both are welded flush on the top 42 of the hollow profile part 30 to the outer lower vertical tube 20.2 . The tube piece 41 forms with its upper end face 43 a smooth support surface for an easy-to-fit vertical one-pipe support 16 or a frame 51 at the appropriate height.

For the cross struts 14 pockets or boxes 45 are known per se with captive wedges 46 on the side of the inner vertical tube 20.1 lying in the intermediate space 47 at a suitable height for handrails at a distance from one another, so that conventional handrail rods are longitudinal struts 14 with their downward reaching End hook 14.1 inserted and secured with the wedges 46 , as illustrated in FIGS . 1 and 4. They are up to about 1 m high. So all the connecting elements are laid in the space or to the outside and the inner vertical tube 20.1 , as can be seen from all the figures, is completely smooth to the walkway passage space 21 , which is a great advantage in use.

To put on the actual upper scaffolding parts 50 , the hollow profile part 30 is built up further over the wall-mounted walkway support 11.2 . For this purpose, the push-on pin 40 with its welded pipe section 41 is provided. Since a finished adjusting frame 51 with the two one-pipe supports 16.1 and 16.2 is to be attached here, a second plug pin is required. This pin 40.2 has a tube piece 41.2 . They are both welded onto a U-shaped holder 55 which is open at the bottom. A unit is plugged with the holder 55 on the hollow profile part 30 at a suitable distance. Then a U-cross bar 56 is provided with provided at both ends half couplings 57.1 and 57.2 with the two pipe sections 41.1 and 41.2 . Thus, the two pins 40.1 and 40.2 are connected at a suitable distance and firmly to the scaffold support device, so that the setting frame 51 can now be plugged on, as shown in FIG. 5. He has a lower Querver tie rod 58 with a retaining pin 59 for toe boards, which are not shown here.

The cross bar 56 is designed as an upwardly open U-profile of the usual type, so that the claws 61 are suspended from a frame panel 15 and can be secured in the usual manner. In this way, the holder for scaffold panels 15.3 near the wall is created, which, as can be seen, are placed on the longitudinally spaced passage frame. Now a scaffold can be built up further in the usual way.

Appropriate holders must be provided to support the other scaffold panels 15.1 and 15.2 , which cover the remaining area of the walkway passage space 21 . These table holders are shown in particular in FIGS. 1, 5 and 6. They are designed as open to the top, extending over the free, left in FIG. 1 hollow profile part 30 and the connecting element 37 and are designed according to the respective extension length of a board, two boards or more. They have downward around the side walls 64 of the hollow profile parts 30 holding tabs 65 which are designed as U-shaped brackets and are welded to the underside of the upwardly open, continuous U-profile holder 63 . They hold the U-profile 63 , which is open at the top, against lateral displacement, thus allowing the claws 61 of the scaffolding panels 15 to be hooked in, which can also be secured in the usual manner.

The construction is made up of simple, technically advantageous elements that are easy to combine. It can be put together in a variety of ways. It is possible to provide a plurality of sidewalk supports 11 with connecting elements 37 next to one another in a row and thus create a wider contact surface or roof. The longitudinal arrangement can also be made in any length.

However, you can also attach only a sidewalk support 11 with suitable wall anchors to a wall and then have a cantilever on which you can support the scaffold at least for fixing the position. Appropriate diagonal bars may have to be provided to absorb the forces. In narrow streets, particularly when renovating old buildings, you can also set up a stable, scaffold-free walkway. All usual scaffolding elements with couplings or the like can be connected to the walkway. Since the walkway supports 11 are constructed symmetrically and also allow the hollow profile parts to be connected on both sides, it is easy to work with one and the same walkway support in the variety of existing applications for the most different scaffold structures, where manufacturing, storage and assembly can be considerably simplified . By the sensible attachment of the engagement plate 32 , which is also referred to as a bundle plate, you can easily attach and detach the pivotable commercially available diagonal bars at no additional cost. You are now within the support between the two tubes, so that the passers-by are not affected. By attaching the horizontal longitudinal bars, which are preferably designed as double railings, with their connecting means between the two vertical tubes 20 of the walkway supports 11 , no one gets stuck either. The elements are self-aligning and rigid, even during assembly. The central insertion of the foot spindle 12 in the middle between the two vertical tubes 20 results in an exact introduction of force and height adjustment. Possibly. you can easily put shorter saucers in between if you need higher parts. Another advantage of the double pipes is that you can use standard scaffold anchors on the wall and connect cheaply, without interference in the passage space. With several couplings on top of each other or two couplings per wall anchoring, very large forces can be absorbed, so that the walkway supports 11 can also be used as individual supports with bracket-like knobs on narrow streets, the hollow profile parts 30 serving as knobs. Since the supports can be attached to the wall in a tensile and compressive manner, it is also possible to put up 70 cm wide scaffolding on top. Struts, pipes and couplings can absorb the forces. By lining up several sidewalk supports with telescopic intermediate pieces and connections, you can create a podium of any width. Scaffolds with standard widths of, for example, 70 cm and 100 cm or other individually designed scaffold widths with individual components can be erected on the sidewalk supports combined to form portals, depending on the existing requirements.

In summary, the invention can also be described as follows:
For bridging the scaffold, the scaffold support device provides sidewalk supports ( 11.1 and 11.2 ) with welded-on hollow profile parts ( 30 ) which, because of their symmetrical design by connecting elements ( 37 ), can be telescopically united to portals of different widths and can also be strung together. Diagonal bars ( 13 ) and railing bars ( 14 ) take over the longitudinal and diagonal bracing. U-profile holder ( 63 ) and U-cross bar ( 56 ) are located above the hollow profile parts ( 30 ) and take up the claws ( 61 ) of the scaffold panels ( 15.1 , 15.2 and 15.3 ).

Claims (15)

1. Scaffold support device for bridging walkways with several spaced supports ( 11 ), which can be supported on the floor with a height-adjustable foot section and each have upper cross struts ( 30 , 37 ) in pairs, with further stiffeners ( 13 , 14 ) and which provide horizontal protection Cover over the passage area (walkway passage space ( 21 ), characterized in that the supports ( 11 ) are formed with two vertical tubes ( 20 ) which lie transversely to the passage direction at a distance (A) which is from a little more than one to To a few multiples of the tube diameter is that the vertical tubes ( 20 ) in the region of the lower ends ( 22 ) have at least one lower cross strut ( 23 ) with connection means for the height-adjustable foot part ( 12 ), in the upper end region ( 29 ) connection means for the upper cross struts ( 30 ) and / or scaffold elements ( 16 , 51 ) to be connected upwards. 2. Scaffolding support device according to claim 1, characterized in that at least in the upper end region ( 29 ) of the vertical tubes ( 20 ) connecting means ( 31 , 32 ) are provided for diagonal struts. 3. Scaffolding support device according to one of the preceding claims, characterized in that up to a height of about 1 m, preferably a plurality of connecting elements ( 45 , 46 ) for between the two vertical tubes ( 20.1 , 20.2 ) horizontally inserted railings and / or longitudinal struts ( 14 ) are provided are. 4. Framework support device according to claim 3, characterized in that for the mounting of the railing rods (14) or longitudinal struts (14) insertion pockets or plug-in box (45), preferably with locking wedges (46), tilting pins or the like. For with end hooks (14.1 insertable pipe elements ( 14 ) are provided. 5. Scaffold support device according to at least one of the other claims, characterized in that the upper cross strut is formed with a laterally projecting, preferably welded-on hollow profile part ( 30 ), in or over which a connecting element ( 37 ) for at least one further cross-connecting hollow profile part ( 30 ) with associated vertical tubes ( 20 ) can be inserted or connected. 6. Scaffolding support device according to claim 5, characterized in that the upper hollow profile part ( 30 ) is designed as a rectangular tube, in which a suitable connection element ( 37 ) for a telescopic connection with fixable at different intervals, preferably with pins or screws fitted fuse is insertable. 7. scaffolding support device according to one of claims 5 or 6, characterized in that for the hanging of the protective cover in the form of conventional scaffolding panels ( 15 ) or the like. The upper chord region of the hollow profile parts ( 30 ) is equipped with upwardly open U-profiles ( 56 ) . 8. scaffolding support device according to claim 7, characterized in that the U-profiles with parts down to the hollow profile ( 30 ) cross-retaining tabs ( 65 ) are equipped. 9. scaffolding support device according to claim 7 or 8, characterized in that the U-profiles are formed as over the area beyond the actual scaffolding area in one piece also the area of the connecting element ( 37 ) bridging rails. 10. Scaffold support device according to one of claims 5 to 9, characterized in that in the scaffolding area on the top ( 42 ) of the hollow profile ( 30 ) with a half-couplings ( 57.1 , 57.2 ) equipped U-crossbar ( 56 ) is arranged. 11. Scaffold support device according to at least one of claims 5 to 10, characterized in that on the upper side ( 42 ) of the hollow profile part ( 30 ) an upstanding plug pin ( 40 ), preferably with a tube piece acting as a tubular end face support ( 41 ) for a scaffold tube ( 16 , 51 ) is provided. 12. Scaffolding support device according to one of claims 5 to 11, characterized in that an engagement plate ( 32 ) is provided directly below the hollow profile part ( 30 ) at a suitable distance (B) for hanging in a notched diagonal bar ( 13 ) at the end. 13. scaffolding support device according to at least one of the other claims, characterized in that in the region of the center of the vertical tubes ( 20.1 , 20.2 ) a stiffening against Verver Verver connecting part ( 28 ) is provided. 14. Scaffold support device according to at least one of the other claims, characterized in that a short pipe section ( 24 ) is provided for a foot spindle in the lower cross strut ( 25 ). 15. Scaffold support device according to at least one of the other claims, characterized in that more than two walkway supports ( 11 ) are combined in series next to one another by connecting elements ( 37 ) to form a wider platform support device.