EP1809834A1

EP1809834A1 - System used as an abutment possibility for crash protection equipment

Info

Publication number: EP1809834A1
Application number: EP05805865A
Authority: EP
Inventors: Roland Appl; Ralf Walker
Original assignee: Zinco GmbH
Current assignee: Zinco GmbH
Priority date: 2004-11-11
Filing date: 2005-11-08
Publication date: 2007-07-25
Anticipated expiration: 2025-11-08
Also published as: US20090205904A1; DE202004017539U1; WO2006050901A1; EP1809834B1; JP2008519921A; RU2379447C2; CA2586944A1; RU2007121734A

Abstract

The invention relates to a system used as an abutment possibility for crash protection equipment, said system consisting of abutment points or guiding disks or rails held by a load of bulk products. According to the invention, a large-area disk with a variable size and shape is formed from small-area individual elements to be connected to each other. Said disk is to be covered with a load (e.g. a bulk product, plates ) and is thus able to absorb forces induced in the event of a crash, by means of abutment points applied thereto or to the individual elements or integrated into individual elements.

Description

P 23594 / PCT - rvet 7th November 2005

ZinCo GmbH, Grabenstrasse 33, D-72669 Unterensingen

System as an option for protection against crashes

Stop options for securing against falling when working in the edge area of elevated surfaces (eg ^■ maintenance work on flat roofs) of conventional design are as follows:

1. Fixed attachment points:

5 e.g. as anchors in masonry or concrete or as supports made of tubular steel, which are anchored in the roof substructure and are so high that they protrude above the roof layers above. Disadvantages of this design result in the case of sealed-in steel pipes by the creation of heat lo or cold bridges, as long as no cover is made with a heat-insulating hood. Due to the required Durchdrin¬ tion of the roof seal additional connections ge create with the risk of leaks. The use of these fixed attachment points is possible only at statically suitable i5 points.

2.a) Transportable by own weight or load held stop devices:

For example, water-filled pillows of appropriate size or rigid, weighted by Auflast metal structures. These constructions of self-weighted stop devices are intended for temporary use and are therefore dimensioned so that they can be easily transported. This requires relatively small bearing surfaces and thus leads to high point loads, which require a correspondingly load-bearing substrate. On lightweight roof constructions such anchor devices are therefore generally not applicable. The set-up times compared to permanently installed anchor devices are relatively high.

lo 2.b) Anchoring device held by means of an overload and intended to remain on flat roofs:

By suitable bulk materials - e.g. Also substrates for roofing greened networks or tarpaulins with appropriate area size make it possible by attached eyelets or i5 loops which are guided over the surface, fixed

To create lifting points. Solutions designed in this way create penetration-free attachment points. This avoids the problems of heat or cold bridges mentioned under 1. and the risks of leaks. The installation is also

2o subsequently possible, provided that the required ballast can be provided with suitable bulk material.

The attachment points receive the necessary support in the event of a fall from the ballast behind you. The ballast located in front of the attachment point is not effective or only slightly effective in terms of retention. In the case of a train at the anchor point, a triangle of forces results - the main force is introduced diagonally backwards into the net or into the tarpaulin.

The nets or tarpaulins are prefabricated and have a mostly square or rectangular or even a hexagonal or octagonal shape. An adaptation to a special one Roof geometry is not possible. Under tensile stress occurs a deformation of the rectangular or square built-in network or the tarpaulin in the pulling direction.

Especially with narrow roofs is the use of networks

5 or planning is often not possible and it must be resorted to the use of the variants described in 1..

The resulting in the case of a network gearing with the substrate is weak. A connection of individual stop points with sufficient prestressing for safety systems with tensioning cables with the possibility of overrunning the individual fixed and corner points is not possible because the ballast on the nets or tarpaulins is not sufficient for this purpose Reinforcement is missing. The attachment points are usually mounted close to the edge. This is necessary in order to have as much as possible a load on the non-stiffened nets or tarpaulins as effective support in the back of the working person. A tensile stress is therefore not possible around the anchor point. This can lead to errors in the application and thus to risks! Is worked so that

If the safety rope runs parallel to the edge of the net or the edge of the board, the risk of pulling out the net or the tarpaulin in the event of a fall is very great. The work area must therefore be meticulously respected!

To operate a corner with the immediately adjacent areas, such systems require a three-time transfer.

3. Securing Systems with Tensioning Ropes or Rails: These require either fixed attachment points (see 1.) which are connected by ropes or rails or are held at 30 by rods spaced and by non-woven padding attached weighted attachment points. The disadvantage of the first variant has already been described under 1.. In the second-mentioned variant, there is the problem of only limited adaptability to roof penetrations.

5 invention:

The invention relates to a system of corrosion and rotting resistant material (eg plastic or metal), which is composed by more or less rigid connection of ausge¬ stiffened individual elements, as well as with a suitable material (suitable material (eg Substrate, gravel, chippings etc or plates, etc.) is covered so high that it can be used on raised surfaces in connection with in particular non-positively attached to the individual elements or integrated in individual elements attachment points as an abutment possibility for personal protection equipment against falling. This can be done either as Einzelanschlag¬ point solution as well as by connecting individual ange¬ provided fixed points in the form of tension cables or rails.

The interconnected elements create a structured disk, which makes better use of the medium used as an overburden compared to solutions with nets or tarpaulins. Due to the formation of a disk, the entire load on this load acts as a support. Also applied before the stop point bulk material, etc. 25 thus contributes to the backing. In networks or tarpaulins, which are not stiffened, this can only ever be a part. Overall, the area of the system per stop point can be kept lower with the system according to the invention. In contrast to two-dimensional networks or tarpaulins, the adhesion and sliding friction can be improved by three-dimensionally configured individual elements (webs, upstands, walls). Embodiments of the invention are shown in the drawing dar¬ and will be explained in more detail below. In the drawing show:

FIG. 1 shows a first exemplary embodiment of the system according to the invention in a schematic illustration on a narrow roof,

FIG. 2 shows a system according to the prior art as described under 2.b),

FIG. 3 is a schematic representation of a second exemplary embodiment of the system according to the invention, in which case several discs are shown on a roof which is wider than that of FIG.

FIG. 4 shows a third exemplary embodiment of the system according to the invention, in which case disks for a circulating fuse are shown on the edge of the roof,

FIG. 5 shows a perspective view of a first and a second embodiment of an individual element used for forming the pane;

Figures a perspective view (Figure 6) and a 20 6 and 7 top view (Figure 7) on a Verbindungsmöglich¬ ability to connect individual elements untereinan¬ and

Figures a perspective view (Figure 8) and an 8 and 9 plan view (Figure 9) on separate components for

25 Connection of an anchorage point with a washer. The reference numbers used in the description and in the drawing figures have the following meaning:

1 roof edge

2 disc in the sense of this invention 3 stop point or fixed point, which is firmly connected to the flächi¬ gen disk or the network or a tarpaulin

4 workspace

5 net or tarpaulin

6 Rope or rail for all-round securing 7 Skylight dome

8 roof penetration (e.g., fireplace, fans ...)

9 single element for the formation of the disc - with bottom (drawn for simplicity without connecting parts)

10 single element for the formation of the disc - without bottom; lattice-like webs serve as reinforcement (drawn without connecting parts for the sake of simplicity)

11 Lock for connecting individual elements in detail

12 knob for latching (non-releasable - or only against Wider¬ detachable connection) 13 recess for receiving 12

14 Exemplary embodiment of connections of individual elements in plan view

15 plate for connection with 16

16 plate for connection to 15, by means of e.g. Flat-head screws and nuts 17

17 connection part e.g. Flat head screw with nut shown greatly simplified

18 possible embodiment of a mounting option of 19 19 eg stainless steel cable, connected to 18, with stop lug to stop with protective equipment against falling 20 Storage and guidance of 19 eg as a shaft with lid

(Cover not drawn) to

21 Bore for connection of 15 to 16 by means of suitable connecting material

The description below follows of the embodiments of the system according to the invention shown in FIGS. 1 to 9:

Examples of individual elements are shown in FIG. 5 in the form of FIGS. 9 and 10. It can also be arranged anchor points in the middle of the disc. Nets or tarpaulins would have to be very large for this purpose - and only a fraction of the total area would be used, depending on the working direction. The advantage of the invention in this point is shown e.g. in narrow roofs - see Figure 1. The example shows a narrow roof with a width of only 5 m. With the hitherto known permanent penetration-free systems as described on page 1 of this description under 2.b), this roof would not be planable with attachment points. The dimensions of a net are already 5 × 5 m for standard construction heights for roof coverings or gravel beds. Next, the attachment points are arranged in the edge region. In order to be able to strike at all, the person would already have to move into the danger of falling roof edge area of = 2 m. It would immediately result in an inadmissible working angle or area.

Another advantage of the invention is that fewer impact points are needed at all. The working area can be 360 ° in the case of centered or adequately far-anchored attachment points. Thus, a roof corner can be operated with only one anchor point and the risk of incorrectly maintained work areas is eliminated. This is illustrated by the figures 2 and 3. Both Dach¬ areas have the exact same area size. In the illustrated in Figure 2 standard planning with a previously used system as described under 2. b) on page 1, nine attachment points are required - which also means nine times hanging for the security person. In Figure 3 with the system according to the invention, only six An¬ impact points are required - and to have to choose this longer without the rope length of the protective equipment. In FIG. 2, the user must observe the work areas, whereas in FIG. 3 this is not necessary with the system according to the invention.

By interconnecting individual elements, it is possible mög¬ Lich to adjust the area size and surface geometry per anchor point individually depending on the possible ballast and the local conditions. Furthermore, due to the small units, the advantage of handiness and simple transport is created.

An exemplary planning (FIG. 4) shows how the system according to the invention can advantageously be used with a rope solution for a circumferential securing at the edge of the roof. The skylights were recessed and set the equivalent Flächen¬ size of the individual elements in the direction of the roof edge. Other penetrations 7 can be bypassed. When planning the attachment of the attachment points, minimum distances to the edge of the disc must be observed. Otherwise it can come to levering out of the disc, which is indeed only effective as long as it is covered by the appropriate medium.

By nets or tarpaulins as described on page 1 under 2.b) fixed points can not easily be attached for the attachment of circulating ropes, since these require a bias. in order to obtain only slight deflections in the event of a stress. By a stiffening this would be possible, but this requires more parts. However, this problem can be solved in a more practical and simple way by assembling with small elements a rigid disk or a circulating belt (FIG. 4). This solution also brings with it the advantage of the "reversal possibility" of roof penetrations already carried out.

When selecting the material and the accessories, care must be taken that, even with long-term use on weathered roofs in conjunction with the respective medium serving as a charge, corrosion or decomposition phenomena can not occur which impose the safety of the invention ¬ could affect the stop device according to the invention. It is therefore necessary to choose materials that are resistant to corrosion and rotting.

Of course, the size of the disc to be built, the design of the individual elements, the attachment of the An¬ impact points on the disc and the strength of the inserted

20 set ropes or bands and the actual stop eyelets on the forces caused by a case, ein¬ finally the required safety reserves abzustim¬ men. The specific requirements and test methods include DIN-EN 795 "Anchor devices". Next is an

25 ne vote on the vast field of application (for example, roof greening and bekieste roofs) taking into account the usual bed heights of e.g. Bulk materials. The individual elements for the formation of the disc, which uses as a basis for receiving the attachment points or fixed points

30, must be so dimensioned in themselves and in connection with the connection that the occurring forces can be introduced. This also applies in the case of non-rectangular or quadratic In the case of wafers formed in the form of wafers, which receive cutouts, entirely different force relationships can occur here.

Possible solutions for a single element are shown in FIG. 5. In FIGS. 6 and 7, a connection option is shown by way of example. The connection of the individual elements with each other must be designed so that the tensile forces that occur in the event of a fall do not lead to a loosening or superimposing of the individual elements or there is an essential deformation of the pane. FIG. 6 shows how a non-positive connection can be achieved by means of a T-connector. By additionally arranged mop and depression latching can be achieved.

The attachment points or also the fixed points for cable safety systems (stop device with horizontally movable guide) or rail systems can be integrated directly into correspondingly modified individual elements or can be non-positively connected to the disk via separate components (FIGS. 8 and 9) and the If necessary, additionally stiffen the disk or allow the forces to be introduced into a plurality of individual elements of the disk (FIG. 9).

Claims

claims

1. System as an abutment for protective equipment against falling, created by tern by means of load of Schüttgü¬ held stop points or guide cables or

5 rails characterized in that from each other to ver¬ binding small-scale individual elements a variable in size and shape, large-area disc is formed, which is to be covered with ballast (eg bulk material, plates, ...) and thereby able to over their forces introduced or incorporated in single elements integrated elements, as they occur in the event of a fall, record.

2. System according to claim 1, characterized in that the disc is preferably formed of individual elements which are stiffened in itself.

3. System according to one of the preceding claims, characterized in that the individual elements may have a three-dimensional structure.

4. System according to any one of the preceding claims, characterized in that in the individual elements, for connection

20 with each other, links are integrated.

5. System according to any one of the preceding claims, characterized in that the connection of the individual elements is effected by separate parts.

6. System according to any one of the preceding claims, characterized in that the connection of the individual elements takes place both by separate parts, as well as by integrated into the individual elements connecting members.

7. System according to any one of the preceding claims, characterized in that the individual elements to form the disc have a size of 0.1 m ² to 2 m ² , in particular 0.1 m ² to 1.0 m ² .

5 8. System according to one of the preceding claims, characterized in that the disc for individual attachment points, depending on the type and height of the ballast, a size of 2 m ² to 25 m ² , in particular 8 m ² to 25 m ² ¬ points.

lo

9. System according to any one of the preceding claims, characterized in that individual discs can be connected to each other, so that a larger surface is available for receiving ballast.

10. System according to any one of the preceding claims, characterized i5 characterized in that the individual elements to be connected are installed on a rot-proof protective layer.

11. System according to one of the preceding claims, characterized in that the individual elements to be joined installed on a filter fabric with underlying drainage

20 will be.

12. System according to any one of the preceding claims, characterized in that the disc may have recesses.

13. System according to one of the preceding claims, characterized in that on the disc one or more

25 impact points or fixed points depending on the possible ballast and the disc size can be attached.

14. System according to any one of the preceding claims, characterized in that stop points or fixed points placed on the flat disc almost anywhere arbitrary.

15. System according to any one of the preceding claims, characterized in that attached to the disc or to a plurality of discs fixed points can be connected to a guide cable or rails, which in turn serve as Anschlageinrich¬ device.