EP3926125A1 - Fall prevention device - Google Patents

Abstract

The invention relates to a device (1) for fall protection in the area of eaves (51) or edges of a roof surface (50), the device (1) having a protective railing (10) with at least two railing supports (13) and with a handrail (17) , with one or more knee rails (18) and with a toe rail (19), wherein the handrail (17), the knee rails (18) and the toe rail (19) are arranged transversely to the at least two railing supports (13). At the lower end (16) of each railing post (13), a standing rail (20) is attached, which standing rail (20) is connected to the railing post (13) at an angle (23) and from the railing post (13) with a rail length ( 22), with each upright (20) having a skid-shaped rounding (25) on its free end (24) on the underside (27), and on the top (26) of each upright (20) at a longitudinal distance (34) from the A groove-shaped recess (30) equipped with at least one locking element (40) is arranged transversely to the length (22) of the rail, said recess (30) for receiving at least a section of a snow guard tube (61) fastened to a roof surface (50). is provided.

Description

The invention relates to a device for fall protection in the area of eaves or falling edges of a roof, the device comprising a guardrail with a handrail, with one or more knee rails and with a baseboard, the handrail, the knee rails and the baseboard transversely to the at least two handrail supports are arranged.

Furthermore, within the scope of the invention, a system of an eaves fall protection system is specified, which comprises at least one fall protection device and a snow guard tube of a snow guard attached to a roof surface of a building, the snow guard tube being attached at a height distance from the roof surface along the eaves.

With edge protection, a so-called side protection, potential falling edges are secured on construction sites in order to prevent accidents at work. Side protection can be made of wood, but it can also be a guardrail made of steel or aluminum.

The European standard EN 13374 "Temporary side protection systems" applies to all components of side protection components that are used in areas at risk of falling, such as edges on roofs, buildings, bridges or stairs as well as large machines. This standard specifies the requirements and test methods for individual classes A, B, C on temporary edge protection systems that are used during the construction or maintenance of buildings or other building structures.

For example, a guardrail must have a handrail, one or more knee rails and a baseboard so that it meets the common, standardized requirements for side protection. Usually the upper edge of a side protection should be at a height of at least 1,000 mm above the respective installation surface. The maximum distance between the cross struts of the guardrail is also specified by the standard.

Side protection or edge protection is a so-called collective protection measure, which is preferable to individual protection against falling if possible. As a fall protection, collective protection always has priority over alternative protective measures. The side protection secures everyone in areas at risk of falling without the need for additional protective equipment.

Different embodiments of roof fall protection systems are already known from the prior art.

For example, from the document DE 10 2010 052198 A1 a roof fall protection for the edge of a roof area has become known, in which a scaffolding with longitudinal and cross members must be set up on the facade of a building in a manner known per se, which protrudes over the eaves height of the respective roof directly adjacent to the edge of the roof area. For this purpose, railing elements that serve as fall protection are attached to the area of the scaffolding that protrudes above the level of the edge of the roof surface. The construction of such a roof fall protection is extremely complex, however, since practically the entire building has to be scaffolded all around up to a scaffold height protruding beyond the eaves height in order to be able to attach the corresponding railing elements to the upper scaffold edge. In order to ensure the required stability of this scaffolding, appropriate wall anchors and facade hooks must be set to which the scaffolding supports can be attached. However, this causes a further disadvantage of such a roof fall protection device, since structural parts or facade surfaces are damaged by the fastening of the wall anchors.

In general, scaffolding systems known from the prior art, which are used for fall protection during roof work, have the disadvantage that the complete scaffolding of a building with a larger roof area, such as an industrial or warehouse built in steel construction, is not possible for reasons of cost and time is. When erecting such halls in a steel structure, the use of scaffolding for the assembly of side wall or facade cladding is usually a hindrance. A circumferential scaffolding at the side would therefore make sense when erecting the hall purely for the assembly of the roofing and for the subsequent plumbing work. However, an enormous amount of scaffolding has to be erected for this: when erecting an industrial hall made of steel profiles with, for example, 1000 square meters of floor space, around 130 linear meters of scaffolding with an average height of at least 6 to 7 meters must be erected. Due to the high costs and the long time it takes to assemble and then dismantle such large assembly scaffolding, this variant of a roof fall protection system is uneconomical.

Furthermore, from the DE 20 2008 013827 U1 already a roof fall protection with posts for hanging a safety net has become known, each post having a foot at its lower end for support on a roof structure formed from roof battens and counter battens. The post base consists of one or more flat strips, which must be attached to the roof battens in the installed position of the roof fall protection. The safety lines of the safety net can be clamped at the top end of the post. The disadvantage of this design of a roof fall protection device is at least that each individual post foot is attached to the respective roof substructure, that is to say to Roof battens or counter battens must be attached. This roof fall protection is therefore in principle only suitable for tiled roofs, whereby the roof tiles in the area of the post feet must be removed and the roof skin must be opened at least in sections in order to be able to attach the post feet to the roof battens or the roof substructure at all. It is therefore not possible to fasten this roof fall protection device without partially opening the roof skin that has already been covered. As a result, this type of roof fall protection is not suitable for damage-free installation on a roof covered with sheet metal elements.

The fall protection systems already available on the market were mostly developed for use in residential buildings and residential complexes. Buildings of this type, however, offer fastening options that are not available in a steel structure. These differences result from the construction itself as well as from the building materials used. On a concrete or brick wall of a residential building, dowels for fastening fall protection can be placed comparatively easily, with the corresponding fastening points on the facade being plastered afterwards when the protection is dismantled and the drill holes are then no longer visible and therefore no problem for possible Form leaks. In the case of a steel structure with a panel or trapezoidal sheet roof covering, however, every mounting hole made in the sheet metal roofing means a possible permanent leak in the water-bearing level of the roof cladding, whereby the mounting points usually also result in a visible deformation of the surface .

Safety systems for roof fall protection with safety ropes can greatly reduce the potential risk when working on the roof. Such safety systems, however, disadvantageously restrict the assembly process of roofing work very severely. Safety systems of this type usually have a circular working area, which is essentially determined by the lengths of the safety lines that are attached to a certain anchorage point or anchor. This leads to problems in particular in the case of large hall roofs of industrial steel buildings with a mostly rectangular work area. In order not to restrict the freedom of movement of the assembly personnel secured with safety ropes too much in this case, a very large number of anchors would have to be distributed as evenly as possible over the roof surface, which is, however, expensive. In the majority of projects for roofing or renovation, no permanent securing is required, which is why the erection of a corresponding number of fixed anchors for securing ropes is usually ruled out for reasons of cost.

Furthermore, mobile site fences and mobile barriers are known from the prior art, in which the fence elements can be inserted into floor panels. Even if these floor panels are weighed down with additional weights such as sandbags, such mobile barriers do not provide a safe fall protection, especially on building roofs, since the fence elements tip over and the floor panels in which the fence elements are inserted are on a roof, in particular on a sloping roof, can slip.

In the case of the roofs of industrial steel buildings, especially in the Alpine region, snow guards are usually provided to protect against roof avalanches. Depending on the roof surface and roof pitch, one or more snow guard pipes are usually installed parallel to the roof surface at a distance along the edge of the eaves. Such snow guard tubes are fixedly attached to the roof skin with snow guard tube holders. For hall roofs of industrial steel buildings with roof pitches of up to 30 °, corrosion-protected, mostly galvanized pipes, for example with a pipe diameter of ¾ "to 2" or steel pipes with a pipe diameter of 26.9 mm to 42.4 mm and wall thicknesses of Inserted 2 to 4 mm. To cover such steel hall roofs, trapezoidal steel sheets or sandwich panels filled with insulating material are usually used. Depending on the design of the roof covering, differently shaped snow guard tube holders can be used to ensure a distance between the respective snow guard tube and the roof surface, usually of 10 to 80 mm.

The present invention therefore has the task of avoiding the disadvantages known from the prior art for roof fall protection devices of the type mentioned, and to create a device that is inexpensive and easy to attach to already installed snow guards and for roof fall protection for people working on the roof can be used. Furthermore, it is one of the objects of the present invention to provide a device for roof fall protection that can be quickly attached without damaging the water-bearing plane of the roof skin in the area of the eaves and can be assembled without tools and, if necessary, also dismantled again. In addition, one of the tasks according to the invention is to provide a roof fall protection device that ensures the greatest possible freedom of movement for the staff working on a hall roof while at the same time ensuring the highest possible occupational safety and which meets the requirements of the current safety standards, in particular the standard EN 13374 mentioned above, in the respective version.

These objects are achieved in a fall protection device according to the preamble of claim 1 with the features of the characterizing part of claim 1.

The subclaims relate to further advantageous embodiments of the invention.

In general, the assignment of the terms with regard to a location or an orientation, such as "horizontal", "vertical", "in the horizontal direction", "in the vertical direction", "vertical", "horizontal", "above", " below "," in front "," behind "," below "," above "etc. are chosen only for the sake of simplicity. These terms can possibly relate to the representation in the drawings and / or to an installation or installation position of the fall protection device in use.

According to the invention in a device for fall protection in the area of eaves or fall edges of a roof surface, the device comprising a protective railing with at least two railing supports and with a handrail, with one or more knee rails and with a baseboard, the handrail, the knee rails and the baseboard are arranged transversely to the at least two handrail supports, at the lower end of each handrail support a stand pillar is attached, wherein the stand pillar is connected to the handrail support at an angle and protrudes from the handrail support with a spar length, each upright pillar having a runner-shaped curve at its free end of the spar the underside, and a groove-shaped recess equipped with at least one locking element is arranged on the top of each upright at a longitudinal distance from the free end of the bar transversely to the bar length, which recess for receiving at least a portion of a roof surface attached snow guard tube is provided.

• Zur temporären oder auch dauerhaften Montage der Absturzsicherung ist keine zusätzliche Durchdringung der wasserführenden Ebene eines Daches erforderlich; die Absturzsicherung wird einfach an einem bereits an der Dachfläche im Bereich der Dachtraufe oder im Bereich von Absturzkanten ortsfest befestigten Schneefangrohr einer Schneefangeinrichtung eingekoppelt;
• Die an einem Schneefangrohr nahe der Dachtraufe bzw. nahe von Absturzkanten befestigte Absturzsicherungsvorrichtung gewährleistet, dass es keine Bewegungseinschränkungen für das Personal oder für einen Einsatz von Maschinen auf der Dachfläche gibt;
• Aufgrund der werkzeuglosen Montage der Absturzsicherungsvorrichtung kommt es zu keinen Zeitverzögerungen im Vorfeld von geplanten Dacharbeiten.

Due to its design, the fall protection device according to the invention offers numerous advantages over the known prior art:

• For the temporary or permanent installation of the fall protection, no additional penetration of the water-bearing level of a roof is required; the fall protection is simply coupled to a snow guard tube of a snow guard device that is already fixedly attached to the roof surface in the area of the eaves or in the area of fall edges;
• The fall protection device attached to a snow guard pipe near the eaves or near falling edges ensures that there are no restrictions on movement for the staff or for the use of machines on the roof surface;
• Due to the tool-free installation of the fall protection device, there are no delays in the run-up to planned roof work.

The fall protection device is designed so that in a per se known guardrail at the lower end of the handrail supports each handrail support has a standing rail that is attached directly to the railing support or connected to it and protrudes at an angle from the handrail support. The railing support and the The associated stand stiles are therefore essentially connected to one another in an L-shape. It can also be provided within the scope of the invention that the standing pillar protrudes on both sides from the handrail support. In this case, the handrail support and the associated standing pillar can be connected to one another in a substantially T-shape.

The angle between the standing pillar and the handrail support can preferably be 90 °. The upright stands on the roof surface and serves to stabilize the guardrail. Such a fall protection device, in which the handrail supports and the upright pillar associated with a handrail support are arranged at right angles to one another, is preferably used as a fall protection device on flat roofs with a slight inclination of up to 15 °.

In the case of relatively steeply sloping roofs with a roof pitch of up to 30 °, it can be useful if the angle between the standing pillar and the handrail support is from 60 ° to 90 °. In this way, if necessary, the roof slope can be compensated and a guardrail that is essentially vertically or vertically fastened can be guaranteed in the erected, fastened position of the fall protection device. In order to ensure that the fall protection device stands securely, each upright has a length with which it protrudes from the railing support.

At the free end of the spar, each upright has a groove-shaped recess on its upper side, which extends transversely to the upright in the longitudinal direction of the guardrail. The person skilled in the art understands a groove-shaped recess to be an elongated depression. Grooves can generally serve to fix elongated components and thus create form-fitting connections, or else to guide or sink elongated components. In other cases, space is created by removing material from a groove-shaped recess.

In the present case, the groove-shaped recess on the upper side of each upright serves to accommodate the cross section of the snow guard tube at least in sections within the recess in a secured position of the fall protection device coupled to a snow guard tube. A width of the recess and a depth of the recess are advantageously dimensioned so that they are dimensioned somewhat larger than a pipe cross-section of the preassembled snow guard tube to which the fall protection device is to be attached.

The runner-shaped rounding on the underside of each upright in the area of the free end of the upright, in combination with the groove-shaped recess on the opposite side of the upright on the upside of each upright, allows a fall protection device with two or more handrail supports to be simply hung on a snow guard tube by means of the recesses on the upright and can be brought into a coupled, securely fastened position by pivoting by means of a rotary movement around the snow guard tube. The fall protection device is hung with the groove-shaped recesses on the snow guard tube and then pivoted about the snow guard tube as a rotation axis into an essentially vertical position. In the coupled position, the at least one fall protection device and a snow guard tube attached to a roof surface, to which the fall protection device is attached, form an eaves fall protection device, which will be discussed in detail below. The fall protection device is attached to the snow guard tube in such a way that the standing spars, which are essentially L-shaped on the handrail supports, are oriented with their free spar ends pointing upwards or facing away from the eaves edge or the fall edge pointing towards the center of the roof.

A plurality of fall protection devices are expediently fastened next to one another with the smallest possible spacing between them on a continuous snow guard tube, an essentially continuous, uninterrupted guardrail being obtained along a roof eaves or fall edge. In the event of a fall of personnel working on a roof surface, it is thus ensured that the coupled fall protection devices offer a rigidly coupled, safe and reliable fall protection.

It can be particularly advantageous if, in a fall protection device, the at least one locking element is arranged on the top of each upright adjacent to the groove-shaped recess and is provided in a locked position to fix a section of a snow guard tube coupled into the groove-shaped recess within the groove-shaped recess to fix and to release the groove-shaped recess in the unlocked position.

At least one locking element, which is expediently attached to the top of the upright adjacent to the groove-shaped recess, is used to allow access to the recess in the unlocked position so that a section of the snow guard tube can be inserted into the groove-shaped recess. In the locked position, the at least one locking element ensures that the coupled-in snow guard tube is fixed within the groove-shaped recess and the fall protection device is fixed in its position on a roof surface in this coupled position attached to the snow guard tube.

Depending on the requirement, the locking element in a fall protection device according to the invention can be selected from the group comprising: spring latches, sliding bolts, cotter pins, safety chains, safety hooks, plug-in safety device, wing screw safety device.

A spring latch offers the advantage that it is a self-locking locking element. The spring bolt is automatically in a locked position and thus ensures a particularly secure coupling of the fall protection device in a position attached to a snow guard tube. The spring bolt only needs to be actuated to release the coupling of the fall protection device in order to separate it again from the snow guard tube if necessary. The other locking elements mentioned, sliding bolt, cotter pin, safety chain, safety hook, plug-in safety device and / or wing screw locking device are not self-locking, but also offer the advantage that they can be actuated without the use of a tool.

In a further advantageous embodiment of the invention, in a fall protection device, the angle between the standing pillar and the handrail support can be from 60 ° to 90 °, preferably 90 °.

The advantages of this embodiment variant have already been pointed out. In the case of more steeply sloping roofs with a roof pitch of up to 30 °, it can be useful if the angle between the standing pillar and the handrail support is from 60 ° to 90 °. In this way, if necessary, the roof slope can be compensated and a guardrail that is essentially vertically or vertically fastened can be guaranteed in the erected, fastened position of the fall protection device.

In order to create a universally applicable version of a fall protection device, the uprights at the lower end of the handrail supports are preferably attached to the handrail supports at an angle of 90 °, that is, at right angles, in relation to the handrail supports. In order to be able to guarantee a sufficiently high level of protection against falling even with sloping roof surfaces, it may be necessary to provide a guardrail with a correspondingly larger guardrail height. The greater railing height can thus compensate for an erected position of the protective railing of the fall protection device that deviates from the vertical.

It can be particularly useful if, in a fall protection device according to the invention, the length of the stile is from 100 mm to 1,000 mm, preferably from 200 mm to 700 mm, particularly preferably from 300 mm to 500 mm. These bar lengths are recommended for essentially L-shaped arrangements of the standing bar and handrail support. If necessary, the stability of the fall protection can also be further improved by attaching the standing pillar protruding on both sides at the lower end of each railing post and thus using an approximately T-shaped arrangement of standing post and railing post in a fall protection device. The corresponding bar length is determined on the one hand by the height of the guardrail, since a guardrail with a greater guardrail height expediently requires uprights with a larger bar length, to be able to be set up in a stable manner. On the other hand, the bar length is also determined by the on-site conditions, especially if the snow guard is already installed on a roof. Depending on the installation distance of a snow guard tube from the eaves or from a falling edge to be secured at the edge of the roof surface, the length of the stiles must be chosen so that they are slightly shorter than the distance from the snow guard tube to the eaves. This ensures that, in the case of an eaves fall protection, the fall protection device also rests on the roof surface in the position coupled to the snow guard tube or the level of the guardrail is flush with the roof surface and has at least a small normal distance from the eaves.

It can also be advantageous if, in a fall protection device according to the invention, the guardrail has a height of 800 mm to 2,500 mm, preferably 900 mm to 1,500 mm, and a length of 500 mm to 6,500 mm, preferably 900 mm to 3,000 mm. Appropriately, fall protection devices with different dimensions of the guardrail can be provided depending on the intended use. For example, aluminum, steel or stainless steel are expediently used as materials for the construction of the fall protection.

For weight reasons, however, aluminum is the preferred material for producing a fall protection device according to the invention. Particularly light and at the same time robust fall protection devices can advantageously be constructed from aluminum, whereby modules with a greater length of the guardrail, for example 2 m in length, can be carried by one person without any problems.

The above-mentioned objects according to the invention are also achieved by an eaves fall protection device, the eaves fall protection device comprising at least one fall protection device according to the invention, as well as a snow guard tube of a snow guard attached to a roof surface of a building, the snow guard tube being attached at a height distance from the roof surface along the eaves and the at least a fall protection device is releasably fixed on the snow guard tube, and each upright of the fall protection device is positioned with its free end between the roof surface and the snow guard tube and the snow guard tube is partially coupled into the groove-shaped recesses on the top of each upright.

As already mentioned above, the groove-shaped recesses on the uprights of the one or more fall protection devices serve to be able to be hooked or plugged into a snow guard tube that is already mounted on the roof surface. So that the one or more fall protection devices are also fixed in their position attached to the snow guard tube or coupled to the snow guard tube, the fall protection devices are then pivoted around the snow guard tube as the axis of rotation into a substantially vertical position.

The runner-shaped rounding on the underside of each upright in the area of the free end of the upright in combination with the groove-shaped recess opposite the upright on the upright on the upper side of each upright enables the fall protection devices to be brought into a coupled, securely fastened position by pivoting around the snow catcher tube by means of a rotary movement be able. The fall protection device is hung with the groove-shaped recesses on the snow guard tube and then pivoted about the snow guard tube as a rotation axis into an essentially vertical position.

In the coupled position, the at least one fall protection device and a snow guard tube attached to a roof surface, to which the fall protection device is attached, form a stable eaves fall protection device. The fall protection device is attached to the snow guard tube in such a way that the L-shaped standing bars with their free bar ends are oriented up the roof or facing away from the eaves edge or the fall edge towards the center of the roof.

In the case of an eaves fall protection device according to the invention, the at least one locking element, which is arranged on the upper side of each upright adjacent to the groove-shaped recess, can be particularly useful in the locked position to fix a section of the coupled snow guard pipe within the recess. For each recess, one or more locking elements can be used for securing and fixedly fixing a snow guard tube section coupled within a recess. Self-locking spring latches can be used particularly advantageously as locking elements for this purpose.

In a further advantageous embodiment of the eaves fall protection device according to the invention, the fall protection device can have stiles whose profile in the area of the recess has a reduced profile height that is less than or equal to the height distance between the attached snow guard tube and the roof surface, the depth and the width of the recess at least that Correspond to the pipe cross-section of the snow guard pipe. In this expedient variant of the invention it is ensured that the uprights of the fall protection device rest flat with their underside on the roof surface in the coupled position attached to the snow guard tube and the entire pipe cross-section of each snow guard tube section is located within one of the groove-shaped recesses of a upright pillar. A particularly secure and robust coupling is thus achieved.

It can be advantageous if, in an eaves fall protection system according to the invention, the longitudinal distance from the free end of the spar to the recess on the top of each stile is less than or equal to the height distance between the attached snow guard tube and the roof surface, and the runner-shaped rounding on the underside of each stile is designed in this way is that the fall protection device coupled to the snow guard tube is mounted so that it can be folded around the snow guard tube as an axis of rotation from a tilted, lying position into an essentially vertical position.

The longitudinal distance at the top of each stanchion from the free end of the stile to the recess in which a section of the snow guard tube is inserted is dimensioned in such a way that the free stile ends, thanks to the runner-shaped rounding on the underside of the stanchion, the roof surface during the rotary movement around the coupled snow guard tube do not touch or damage it. The coupling of the fall protection device with the snow guard tube for the production of the eaves fall protection can thus be accomplished easily and without tools.

• Fig. 1 in einer isometrischen Ansicht schräg von vorne eine erste Variante einer Absturzsicherungsvorrichtung gemäß der Erfindung;
• Fig. 1A eine Detailansicht des in Fig. 1 markierten Ausschnitts A;
• Fig. 2 in einer isometrischen Ansicht schräg von oben eine Traufenabsturzsicherung mit einer Absturzsicherungsvorrichtung, die an einem an einer Dachfläche eines Gebäudes befestigten Schneefangrohr eingekoppelt ist;
• die Figuren 3A, 3B und 3C jeweils in teilweisen Schnittansichten von der Seite eine Montageabfolge zur Herstellung einer Traufenabsturzsicherung gemäß der Erfindung;
• Fig. 4 in einer isometrischen Ansicht schräg von oben ein Detail der Koppelung einer Absturzsicherungsvorrichtung mit einem an einer Dachfläche befestigten Schneefangrohr;
• die Figuren 5 und 6 jeweils in Frontalansichten weitere Ausführungsvarianten von Traufenabsturzsicherungen gemäß der Erfindung.

Further details, features and advantages of the invention emerge from the following explanation of the exemplary embodiments shown schematically in the drawings. In the drawings show:

• Fig. 1 in an isometric view obliquely from the front, a first variant of a fall protection device according to the invention;
• Figure 1A a detailed view of the in Fig. 1 marked section A;
• Fig. 2 in an isometric view obliquely from above an eaves fall protection device with a fall protection device which is coupled to a snow guard pipe attached to a roof surface of a building;
• the Figures 3A, 3B and 3C in each case in partial sectional views from the side, an assembly sequence for producing an eaves fall protection device according to the invention;
• Fig. 4 in an isometric view obliquely from above a detail of the coupling of a fall protection device with a snow guard tube attached to a roof surface;
• the Figures 5 and 6 each in frontal views of further design variants of eaves fall protection according to the invention.

The following description applies equally to the Fig. 1 as well as the detailed view of Figure 1A Showing a fall protection device 1 according to the invention and details of this fall protection device. 1 The fall protection device 1 is made, for example, of aluminum and comprises a guardrail 10, which is a Has a height of 11 and a length of 12. The guard rail 10 here has two railing supports 13 which are spaced apart from one another and which are made here from a shaped tube with a rectangular profile 14. The railing supports 13 each have an upper end 15 and a lower end 16. Between the two railing supports 13, a handrail 17, several knee rails 18 and at the bottom a baseboard 19 are arranged from top to bottom, which are inserted through bores or millings on the railing supports 13 to stiffen the guardrail 10 and are firmly connected to the railing supports 13 by welding are. The distances between the transverse rungs, that is between the handrail 17 and the knee rails 18, are here evenly divided over the height 11 of the guardrail 10, and are, for example, from 150 mm to 250 mm. The handrail 17 and the three knee rails 18 are made here, for example, from a round tube with a 40 mm diameter and a wall thickness of 3 mm. The railing supports 16 are made, for example, from a rectangular shaped tube with a profile 14 of the dimension FRR 80/40/4 mm. An upright, rectangular shaped tube of the dimension FRR 150/50/4 mm serves as the baseboard 19 1 is provided.

At the bottom at the lower end 16 of each railing support 13, a standing pillar 20 is attached. Each of the two uprights 20 here has a profile 21 which, for example, corresponds to the profile 14 of the railing supports 13, that is to say is a rectangular shaped tube of the dimension FRR 80/40/4 mm. Alternatively, the profile 21 of the uprights can also differ from that 14 of the handrail supports 13. The upright spars 20 each have a length 22 or spar length 22 with which they protrude from the railing supports 13 here at an angle 23 of approximately 90 °. The angle 23 is determined between the pillar 20 and the handrail support 13. The railing supports 13 and the uprights 20 attached to them thus form an essentially L-shaped arrangement.

Each upright spar 20 has a runner-shaped rounding 25 on its underside 27 at its front, free end 24 or spar end 24. A groove-shaped recess 30 with a width 31 and a depth 32 is arranged on the upper side 26 of each upright 20 at a longitudinal distance 34 from the free end 24 of the bar and transversely to the bar length 22. A profile height 28 of the profile 21 of the upright is thus reduced in the area of the recess 30 running transversely to the upright 20 and only has a profile height 29 there that is reduced by the depth 32 of the recess 30. A longitudinal axis direction 33 of the recess 30 runs parallel to the longitudinal direction of the guardrail 10. As mentioned, the longitudinal distance 34 is the distance on the upper side 26 of the upright 20 from the free end of the upright 24 to the recess 30. On the upper side 26 of each upright 20 a locking element 40, here for example a self-locking spring latch 41, is provided in each case.

The recesses 30 serve to receive at least a section of a snow guard tube attached to a roof surface.

Fig. 2 shows such an eaves fall protection device 2 with a fall protection device 1 which is coupled to a snow guard 60 attached to a roof surface 50 of a building or to a snow guard tube 61. The snow guard tube 61 is statically fastened here at a distance parallel to the eaves 51 or to a falling edge on the edge of the roof surface 50 with corresponding snow guard tube holders 62. For example, a galvanized pipe with a pipe cross-section 65 or pipe diameter of 1 "(1 inch) serves as the snow guard pipe 61 For this purpose, the snow guard tube 61 is attached at a height distance 63 between the snow guard tube 61 and the roof surface 50 parallel to the roof surface 50.

The dimension of the profile 21 of the upright 20 is expediently chosen so that the profile height 29 reduced in the area of the recess 30 is less than or at most equal to the height distance 63 between the attached snow guard tube 61 and the roof surface 50. Furthermore, the depth 32 and the width 31 of the recess (30) must at least correspond to the pipe cross section 65 of the snow guard pipe 61. This ensures that when the fall protection device 1 is in the coupled position, each of its uprights 20 rests flush with its underside 27 on the roof surface 50 and each upright 20 is positioned in the area of its top recess 30 below the transverse snow guard tube 61. For the sake of clarity, in Fig. 2 the locking elements 40 for securing the snow guard tube 61 within the recesses 30 are not shown.

the Figures 3A, 3B and 3C each illustrate, in partial sectional views from the side, an assembly sequence for producing an eaves fall protection device 2 according to the invention. In each case, a roof surface 50 of a building (not designated in more detail) is shown in sectional view, the roof surface 50 having a roof eaves 51 or a falling edge which must be secured. The roof surface 50 here has a roof inclination of approximately 10 °, for example. A snow guard 60 with a snow guard tube 61 is attached to the roof surface 50 at a distance from the eaves 51.

In the first sub-step, as in Figure 3A shown schematically, a fall protection device 1 according to the invention, such as the one in Fig. 1 shown Fall protection device 1, laid out in the tilted position so that the front free spar ends 24 of the upright spars 20 rest on the roof surface 50 between the snow guard tube 61 and the eaves 51. The upper sides 26 of the uprights 20 face in the direction of the snow guard tube 61. The guardrail 10 is folded towards the center of the roof. The upper ends 15 of the railing supports 13 are thus oriented towards the center of the roof and point away from the eaves 51 in the opposite direction. By moving the fall protection device 1 in a hanging direction 70 symbolized by an arrow 70, the groove-shaped recesses 30 on the upper sides 26 of the uprights 20 are brought into contact or engagement with sections of the attached snow guard tube 61.

As soon as the corresponding sections of the snow guard tube 61 are inserted into the complementary recesses 30, the locking elements 40, which are designed here as self-locking spring bars 41, for example, prevent the snow guard tubes 61 from being unintentionally uncoupled against the direction of the arrow 70. The locking elements 40 on the top 26 of each upright 20, each adjacent to the groove-shaped recesses 30, ensure that in the locked position a section of the coupled-in snow guard tube 61 is fixed in a stationary manner within the recess 30.

In the following sub-step, as in Figure 3B is shown schematically, the previously hooked or coupled fall protection device 1 folded in an opening direction 71 symbolized by an arrow 71 around the snow guard tube 61, which serves as the axis of rotation. The runner-shaped roundings 25 on the undersides 27 of the uprights 20 allow this rotating or folding movement 71 without the roof surface 50 being damaged.

In Figure 3C the final installation position of the eaves fall protection device 2 with a coupled fall protection device 1 is illustrated. The undersides 27 of the uprights 20 rest along their entire length 22 on the roof surface 50 and support the guardrail 10. The spar lengths 22 of the upright spars 20 are dimensioned so that they are somewhat shorter than the distance along the roof surface 50 between the snow guard tube 61 and the eaves 51 or the falling edge. People or objects, machines or the like that slide on the roof surface 50 in the direction of the sloping roof slope 52 towards the eaves 51 are protected from falling into the depths by the coupled fall protection device 1 of the eaves fall protection 2.

It is clear to a person skilled in the art that the fall protection device 1 in the reverse order of that in the figures Figures 3A to 3C The illustrated assembly steps can optionally also be decoupled again from the snow guard tube 61. The fall protection device 1 can thus also be used in a particularly flexible manner for protection against falls on other roofs or construction sites.

Fig. 4 shows a detailed view of the coupling of a fall protection device 1 to a snow guard tube 61 fastened to a roof surface 50. For the sake of clarity, the locking element 40 provided on the top 26 of the upright 20 to secure the coupling of the snow guard tube 61 within the recess 30 is also here not shown. The longitudinal distance 34 from the free end of the spar 24 to the recess 30 on the upper side 26 of the upright 20 is selected here to be somewhat smaller than the height distance 63 between the snow guard tube 61 and the roof surface 50.

the Figures 5 and 6 each in frontal views of further design variants of eaves fall protection 2 according to the invention.

In Fig. 5 several fall protection devices 1 arranged next to one another are shown on a flat roof surface 50 of a sheet metal roof covered with sandwich panels.

In Fig. 6 several fall protection devices 1 arranged next to one another are shown on a flat roof surface 50 of a sheet metal roof covered with trapezoidal steel sheets.

In both cases, the roof surfaces 50 are again equipped with a snow guard 60, the multiple fall protection devices 1 each being coupled into a snow guard tube 61.

LIST OF LOCATION CHARACTERS

1

Fall arrest device

2

Eaves fall protection

10

Guardrail

11th

Height of the guardrail

12th

Length of the guardrail

13th

Railing support

14th

Profile of the railing support

15th

upper end of the railing post

16

lower end of the handrail support

17th

Handrail

18th

Knee bar

19th

Baseboard

20th

Upright

21

Profile of the upright

22nd

Length of the stand stile, stile length

23

Angle between stand pillar and handrail support

24

front free end of the stand stile, stile end

25th

Skid-shaped rounding

26th

Top of the stile

27

Underside of the upright

28

Profile height of the upright

29

reduced profile height in the area of the recess

30th

Groove-shaped recess

31

Width of the recess

32

Depth of the recess

33

Longitudinal axis direction of the recess

34

In-line distance from the free end of the spar to the recess

40

Locking element

41

Spring latch

50

Roof area

51

Eaves

52

Roof pitch

60

Snow skirt

61

Snow guard tube

62

Snow guard tube holder

63

Height distance between snow guard tube and roof surface

65

Pipe cross-section

70

Direction of attachment of the fall protection device (arrow)

71

Opening direction for installing the fall protection device (arrow)

Claims (10)

Device (1) for protection against falling in the area of eaves (51) or falling edges of a roof surface (50), wherein the device (1) comprises a protective railing (10) with at least two railing supports (13) and a handrail (17), with one or comprises a plurality of knee rails (18) and a foot rail (19), the handrail (17), the knee rails (18) and the foot rail (19) being arranged transversely to the at least two railing supports (13),
characterized in that
at the lower end (16) of each handrail support (13) a stand pillar (20) is attached, the stand pillar (20) being connected to the handrail support (13) at an angle (23) and a rail length from the handrail support (13) (22) protrudes, with each upright (20) at its free end (24) having a runner-shaped rounding (25) on the underside (27), and on the top (26) of each upright (20) at a longitudinal distance (34) a groove-shaped recess (30) equipped with at least one locking element (40) is arranged from the free end of the spar (24) transversely to the spar length (22), said recess (30) for receiving at least a section of a snow guard tube (61) attached to a roof surface (50) ) is provided. Fall protection device (1) according to claim 1, characterized in that the at least one locking element (40) is arranged on the upper side (26) of each upright (20) adjacent to the groove-shaped recess (30) and is provided in a locked position To fix section of a snow guard tube (61) coupled into the groove-shaped recess (30) within the groove-shaped recess (30) and to release the groove-shaped recess (30) in the unlocked position. Fall protection device (1) according to Claim 1 or 2, characterized in that the locking element (40) is selected from the group comprising: spring bolt (41), sliding bolt, safety split pin, safety chain, safety hook, plug-in safety device, wing screw safety device. Fall protection device (1) according to one of claims 1 to 3, characterized in that the angle (23) between the upright rail (20) and the railing support (13) is from 60 ° to 90 °, preferably 90 °. Fall protection device (1) according to one of claims 1 to 4, characterized in that the length (22) of the upright (20) is from 100 mm to 1,000 mm, preferably from 200 mm to 700 mm, particularly preferably from 300 mm to 500 mm, amounts to. Fall protection device (1) according to one of claims 1 to 5, characterized in that the guardrail (10) has a height (11) of 800 mm to 2,500 mm, preferably 900 mm to 1,500 mm, and a length (12) of 500 mm to 6,500 mm, preferably from 900 mm to 3,000 mm. Eaves fall protection device (2), comprising at least one fall protection device (1) according to one of claims 1 to 6, as well as a snow guard tube (61) of a snow guard (60) fastened on a roof surface (50) of a building, the snow guard tube (61) at a height distance (63) is attached to the roof surface (50) along the eaves (51),
characterized in that
the at least one fall protection device (1) is detachably fixed to the snow guard tube (61), each upright (20) of the fall protection device (1) being positioned with its free end (24) between the roof surface (50) and the snow guard tube (61) and the snow guard tube (61) is coupled in sections into the groove-shaped recesses (30) arranged on the upper side (26) of each upright (20). Eaves fall protection (2) according to claim 7, characterized in that the at least one locking element (40), which is arranged on the top (26) of each upright (20) adjacent to the groove-shaped recess (30), in the locked position a portion of the coupled snow guard tube (61) fixed in place within the recess (30). Eaves fall protection (2) according to claim 7 or 8, characterized in that the fall protection device (1) has uprights (20) whose profile (21) in the region of the recess (30) has a reduced profile height (29) that is less than or equal to The height distance (63) between the attached snow guard tube (61) and the roof surface (50) is, the depth (32) and the width (31) of the recess (30) at least corresponding to the tube cross section (65) of the snow guard tube (61). Eaves fall protection (2) according to one of claims 7 to 9, characterized in that the longitudinal distance (34) from the free end of the spar (24) to the recess (30) on the top (26) of each upright spar (20) is less than or equal to the height distance ( 63) is between the attached snow guard tube (61) and the roof surface (50), and the runner-shaped rounding (25) on the underside (27) of each upright (20) is such that the (70) coupled to the snow guard tube (61) Fall protection device (1) is mounted around the snow guard tube (61) as an axis of rotation from a tilted, lying position into a substantially vertical position (71) so as to be foldable.

Images