Gable fall protection or verge fall protection on roofs

Abstract

Fall protection for roofs, in particular for the sides of pitched roofs, characterized in that the fall protection has a safety device and roof hooks which can be attached to the roof in their lower area and to the safety device in their upper area, the attachment, wherein the safety device in particular comprises a handrail (1), a knee rail (2), a toe rail (9) and a railing with a first post (10) and a second post (11), wherein in particular four roof hooks are provided, wherein the fall protection can preferably be attached, in particular clamped, to roof battens and / or rafters and to roof tiles by means of the roof hooks, and wherein in particular both the upper area and the lower area of ​​the roof hooks are replaceable.

Description

[0001] The invention relates to a fall protection device for roofs, in particular for the sides of sloping roofs, especially on gable ends or verges. State of the art

[0002] A disadvantage of known devices is the lack of the following possibilities: Until now, there has been no simple and reliable solution specifically designed for fall protection on pitched roofs. Traditional methods for fall protection on pitched roofs are often complicated, Previous methods were time-consuming to install and not flexible enough to be securely attached to different roof types and pitches. This invention, however, saves both time and money, and every tradesperson enjoys working with it, regardless of the effort involved. This, in turn, increases safety on construction sites. Problem and solution of the invention

[0003] Objective of the invention: To avoid the aforementioned disadvantages of the prior art.

[0004] This problem is solved according to the invention in a fall protection system for roofs of the type mentioned at the outset by the fact that the fall protection system comprises a handrail (1), a knee rail (2), a toe rail (9), a railing which includes a first post (10) and a second post (11), and, in particular, four roof hooks, wherein the fall protection system can be attached, in particular clamped, to roof battens and / or rafters and preferably to roof tiles using the roof hooks.

[0005] The invention particularly comprises a fall protection system with an extension ( Fig. 29-33), including four variants of roof hooks, namely Roof hook variant 1 - for battens (tile roof) Roof hook variant 2 - for rafters (tile roof) Roof hook variant 3 - for trapezoidal sheet metal roofs Roof hook variant 4 - for standing seam roofs and also a hook with an eyelet (24), as well as personal protective equipment (PPE set).

[0006] There are three different attachments for the roof hooks: Attachment variant 1 - square Attachment variant 2 - round Attachment variant 3 - eyelet.

[0007] The PPE set is optional. It includes four different roof hooks: one for clamping to roof battens, one for screwing to rafters on tiled roofs, one for trapezoidal sheet metal roofs, and one for standing seam sheet metal roofs. The attachments for square and round tubes, as well as the safety harness eyelet, and all other components such as railings, pipes, etc., remain unchanged and are compatible with all roof hook and clamp variants. The roof hooks will also be equipped with quick-release fasteners to further minimize installation time. Additionally, the railing is offered with individual pipes and a foldable, ladder-like backrest with rungs between the handrail and knee rail. These rungs, like the pipes, can be extended indefinitely and feature a plug-in system to eliminate loose parts and improve storage.

[0008] The fall protection system according to the invention comprises various components such as height-adjustable roof hooks (four variants), posts (two variants), railing brackets, handrails, knee rails and toe rails, a foldable ladder-like railing, as well as connecting screws and nuts. These form a complete solution for fall protection on pitched roofs.

[0009] The hook with eyelet ensures secure anchoring during the installation of the fall protection system. Once installed, the fall protection system is no longer needed for work on the roof and is only reused when dismantling it. The system can be optionally supplemented with other personal protective equipment (PPE), including a helmet (27), a harness (26), and a fall arrest rope (25).

[0010] The railing can be extended indefinitely thanks to its modular system. Different lengths can be produced to accommodate transport and varying gable lengths, e.g., 1m, 2m, 3m, 4m, or intermediate sizes. Each extension of the handrail and knee rail requires the installation of additional posts, including roof hooks, typically every 1.5m to 2.5m. However, this can be calculated more precisely during the certification and approval process following successful patent application. The fall protection system can also be extended as follows: Replacing the screw connection on the roof hook (18) with a quick-release fastener (29) eliminates the need to tighten screws; it can be easily installed and removed without tools.

[0011] The gable fall protection itself is not adjustable, which is also unnecessary. According to current regulations from the German Social Accident Insurance (DGUV), a height of 1 m from the ground (footing surface) to the top edge of the handrail is specified. The distance between the handrail and the knee rail must not exceed 50 cm, and the distance between the knee rail and the baseboard must also not exceed 50 cm. These dimensions are met.

[0012] Currently, either complete scaffolding is erected on the gable end and secured separately with diagonal pipes, or one risks falling to the nearest scaffold platforms, which can be 1-1.5 meters lower if additional diagonal pipes are not installed. There is also another solution: three to five ladders are leaned against the gable end facade, and pipes or mesh are attached to them to protect the gable end from falling onto the roof. This option is considerably simpler than scaffolding, as it can be assembled by the homeowner and does not require a scaffolding contractor. However, transporting and erecting these components is very laborious due to the difficulty of handling them.

[0013] In contrast, the invention is easy to transport, takes up very little space during transport, and consists of handy parts that are also significantly lighter in weight. Advantages of the invention

[0014] Among other things, the following advantages are achieved: The present invention offers an effective fall protection system specifically for the sides of sloping roofs. 1. Simplicity and user-friendliness: The fall protection system is designed for easy installation without any special expertise. The detailed instructions allow even inexperienced users to install the system quickly and correctly. At the same time, the roof remains protected from rain penetrating the interior of the house. The roof remains watertight. 2. Safety and stability: The design with height-adjustable roof hooks and sturdy posts ensures a secure hold on the roof battens and tiles. The teeth on the hooks provide additional grip, preventing slippage. 3. Flexibility and adaptability: The invention comprises two post variants, four roof hook variants, and two strip variants, which can be used depending on requirements and roof construction. This allows for flexible adaptation to different roof types and pitches.

[0015] The adjustable height of the roof hooks prevents the post tubes from resting on the high rib of the roof tiles, as roof constructions vary, with batten spacing ranging from 24 mm to 40 mm. Furthermore, roof tiles sometimes have different thicknesses and rib heights. The roof hooks are attached / clamped in the low rib. This adjustability allows our invention to be used and installed on almost all roof types, thus covering virtually all roof types.

[0016] The height adjustment for both versions (round and square) is achieved by loosening a screw (19). An S-shaped roof hook component (15) has a vertical elongated hole; an F-shaped roof hook component (14) is slid up or down until the correct height is reached, and the screw (19) is then tightened. The correct height is reached when it no longer touches the tiles or roofing bricks and the base rests on the outermost tile.

[0017] The following also refers to the Fig. 19 and Fig. 37 referenced: The fall protection system described here is primarily intended for roofs with battens and appropriate roof tiles or shingles. Extensions for trapezoidal and standing seam roofs are included. Only two different roof clamps are required instead of the roof hooks. Everything else will be universally applicable. For example, the ones in Fig. 19 and in Fig. The 14 elements shown were attached to the corresponding roof clamps and extended. The three different attachments remain unchanged.

[0018] Roof pitch is irrelevant because the posts automatically adjust to an angle of approximately 90 degrees to the roof pitch. The clamps for trapezoidal and standing seam metal roofs do not need to be height-adjustable, as they are mounted on the high rib.

[0019] Normally, one can fall or slide towards a slope, i.e., the eaves. A fall or slide sideways does not generate the same force or load. According to the German Social Accident Insurance (BG), a visual marking of the danger zone up to the gable end would suffice. Our fall protection system marks and protects against any fall hazard, even if someone jumps against it with a body weight of 120 kg.

[0020] The invention is particularly flexible: The product can be used and installed on almost any conceivable roof. Only the roof hooks or clamps need to be replaced, while everything else remains universal. 4. Quick and easy assembly: The few, easy-to-understand steps for assembling the fall protection system allow for rapid installation. This saves time and reduces the need for extensive training or specialized tools. The system is further enhanced by carrying bags specifically designed for transporting the entire fall protection system. 5. Complete PPE Set: The invention optionally includes a complete set of personal protective equipment (PPE) comprising a helmet, harness, and fall arrest rope. This ensures comprehensive protection during the installation of the fall protection system. The roof hooks with eyelet (24) are always included. 6. Cost savings: Simple and quick assembly reduces the need for expensive specialists and lengthy installations. Scaffolding and large-scale transport are eliminated. 7. Ease of maintenance: The materials used and the construction of the fall protection system are robust and durable, made of aluminum or stainless steel. Regular inspection and easy cleaning of the parts ensure a long service life and reliable function. 8. Summary

[0021] This invention provides a previously missing solution for fall protection on the sides of pitched roofs. Its advantages lie in its ease of use, high safety and stability, flexible application, and cost-effectiveness. The comprehensive PPE equipment and quick assembly make this invention a groundbreaking solution for safe work on pitched roofs and all other types of roofs.

[0022] Construction site shutdowns by the employers' liability insurance association, which can result in fines of up to €10,000, are avoided. Other fall protection systems require significantly higher transport costs, as they either necessitate the erection of complete scaffolding on the gable end or require the transport of other systems with 3-9 ladders reaching heights of 6-20 meters. The most important factor, of course, is the safety of the tradespeople! The entire package facilitates transport and is space-saving and lightweight, as most components are made of high-quality aluminum. It can be carried like a large bag and is infinitely expandable.

[0023] These advantages are achieved through the following components: Advantage 1 of the parts: Height-adjustable roof hooks in various designs ( Fig. 17, Fig. 25, Fig. 36-39): These hooks allow for flexible adjustment to different roof pitches and ensure a secure hold on the roof battens, rafters, and roof tiles. The teeth of the hooks prevent slippage, thus increasing safety. Roof tiles and The roof battens are not removed and are clamped together with the roof hook, providing greater stability than the battens alone. This is because the increased wall thickness and surface area are created at the point where the hook is located. Advantage 2 due to the parts: Square and round posts ( Fig. 1-3, Fig. 9, Fig. 23, Fig. 25, Fig. 27-31, Fig. 40): The two post options offer flexibility and adaptability. Square posts (10) and round posts (11) can be used depending on requirements and roof construction. Advantage 3 of the parts: railing angles ( Fig. 1-8): The railing angle (6) serves as a connecting element and enables easy assembly of the hand and knee rails. This contributes to the stability and safety of the entire fall protection system. Advantage 4 through the parts: Hand and knee rails ( Fig. 1-3): These strips (1, 2) provide additional safety and Stability, by attaching them to the posts and They provide a barrier against falls. They stiffen the posts through connection and cohesion. Advantage 5 due to the parts: Round hooks and fastening screws ( Fig. 1-8): The round hooks (3) and fastening screws (4) facilitate the installation of the hand and knee rails and ensure a firm and secure connection. Advantage 6 through the parts: Optional PPE set (personal protective equipment) ( Fig. 26): The optional set, consisting of helmet (27), harness (26) and fall arrest rope (25), provides comprehensive protection during the installation and use of the fall protection system. The hook with eyelet (24) provides additional safety by firmly anchoring it to the roof and is included once in every set. Advantage 7 due to the parts: connecting screws and nuts ( Fig. 3-8, Fig. 17, Fig. 25): These components (screws (7, 18, 19, 23) and nuts (8)) ensure the stable connection of all individual parts, which increases the overall safety and stability of the fall protection system. Advantage 8 of the parts: The foldable, ladder-like railing (28) facilitates transport and increases assembly speed without compromising safety. Advantage 9 of the components: Pleasant transport of the entire fall protection system thanks to specially designed carrying bags (31, 32).

[0024] The following is particularly important: The fall protection system is adaptable both in terms of the selection of components it consists of and for the roof on which it is to be used.

[0025] The invention may include square tubes, tubes of different lengths and / or a foldable back guard for easier transport.

[0026] Instead of screws, oval shapes or fasteners with clamps or quick-release fasteners can also be used.

[0027] Most importantly, the system can be flexibly adapted to different roof types and pitches. Thanks to the various roof hook designs and post options, the fall protection system can be easily adapted to different building structures. This allows for broad application and significantly increases the effectiveness and versatility of the fall protection.

[0028] This will encourage many companies to adopt this workplace safety measure because it is quick and cost-effective. Fall protection systems can be offered at affordable prices. The buyer typically recoups the cost after just one or two uses. This is significantly cheaper than purchasing other scaffolding and / or hiring a scaffolding company. Most importantly, it prevents workplace accidents, which also saves costs, particularly in terms of lost work time and similar expenses.

[0029] The inventor overcame the following technical difficulties in a non-obvious manner during the development of the system according to the invention. • Flexibility and adaptability: The solution had to adapt to different roof types and pitches. This was achieved through height-adjustable roof hooks and various post options. • Stability and safety: A robust construction that is safe and durable was achieved through careful material selection and design. • Ease of use: The fall protection system had to be easy to install and operate. This was ensured through clever design and clear instructions.

[0030] These challenges were overcome through an iterative development process that included testing, optimization, and close collaboration between various experts. After five years and more than 3,500 installed PV systems, the inventor developed the idea and refined how to make the system as simple and efficient as possible in order to avoid the risk of failure in the long term and also offer a solution to other problems.

[0031] Advantageous embodiments of the invention are set out in the dependent claims.

[0032] It is therefore suggested that - that the fall protection includes a roof post (5) connected to the first post (10) and a post representation (12) connected to the second post (11), - that the railing is connected to the first post (10) and the second post (11) and the roof hooks are connected to the roof post (5) or the post representation (12), - that the roof post (5) is connected to the first post (10) via a railing bracket (6), - that the post representation (12) is connected to the second post (11) via a railing angle (6), - that the railing is angular and a ladder-shaped railing (28), - that the railing is square and foldable, - that the tubular railing is not foldable, - that a roof hook includes teeth - that a roof hook comprises an S-shaped component (15) and an L-shaped component (16), wherein the L-shaped component can be connected to the S-shaped component to form a structure encompassing a roof batten, - that a roof hook comprises an S-shaped component (15) and an L-shaped component (30) which can be connected to the S-shaped component (15) and to a roof rafter.

[0033] The post representation (12) can also be made extendable, in particular longer or shorter. Examples of implementation

[0034] Several embodiments of the invention are described in more detail below with reference to the drawings. In all drawings, identical reference numerals have the same meaning and are therefore explained only once, if necessary.

[0035] They show Fig. 1 a first view of the complete railing with handrail (1), knee rail (2) and foot rail (9), Fig. 2 a second view of the complete railing with handrail (1), knee rail (2) and foot rail (9), Fig. 3 a third view of the complete railing with handrail (1), knee rail (2) and foot rail (9), Fig. 4 a first view of a railing angle (6), Fig. 5 a second view of a railing angle (6), Fig. 6 a hand or knee rail with two connecting elements (3, 4), Fig. 7 a first view of the baseboard (9) and the post representation (12) of the railing, Fig. 8 a second view of the baseboard (9) and the post representation (12) of the railing, Fig. 9 to 12 views of the roof hook of roof hook variant 1 for battens with attachment variant 1 (square), Fig. 13 to 16 views of the hooked roof hooks according to the Fig. 9 to 12, Fig. 17 another view of the roof hooks after the Fig. 9 to 12 in exploded view, Fig. 18 a view of the roof hooks after the Fig. 9 to 12 during installation on a roof, Fig. 19 a half-bell, Fig. 20 to 25 corresponding illustrations of roof hook variant 1 for battens with attachment variant 2 (round), Fig. 26 PPE sets for attaching fall protection, Fig. 27 to 28 two views of the roof hook variant 1 for battens with attachment variant 3 (eyelet), Fig. 29 to 31 Views of a hinged strip (28), as an alternative to knee, hand and foot strips, Fig. 32 a quick release (29), Fig. 33 another view of the quick release (29), Fig. 34 a first carrying bag for fall protection, Fig. 35 a second carrying bag for fall protection, Fig. 36 an exploded view of the roof hook variant 2 for rafters with attachment variant 2 (round), Fig. 37 the roof hook Fig. 36, assembled, Fig. 38 the roof hook variant 2 for rafters with attachment variant 1 (square) in exploded view, Fig. 39 the roof hook Fig. 38, assembled, Fig. 40 a detail from Fig. 39, Fig. 41 a roof hook variant 1 for battens (tile roof), Fig. 42 a roof hook variant 2 for rafters (tile roof), Fig. 43 a roof hook variant 3 for a trapezoidal sheet metal roof, Fig. 44 a roof hook variant 4 for a standing seam roof, Fig. 45 to 48 views of roof hook variant 3 for a trapezoidal sheet metal roof with attachment variant 3 (eyelet 24), Fig. 49 to 51 views of roof hook variant 3 for a trapezoidal sheet metal roof with attachment variant 2 (round), Fig. 52 to 54 views of roof hook variant 3 for a trapezoidal sheet metal roof with attachment variant 1 (square), Fig. 55 to 57 Views of roof hook variant 4 for a standing seam roof with attachment variant 3 (eyelet 24), Fig. 58 to 60 views of roof hook variant 4 for a standing seam roof with attachment variant 2 (round) and Fig. 61 to 64 views of roof hook variant 4 for a standing seam roof with attachment variant 1 (square). Construction of the fall protection system for roofs according to the invention

[0036] The Fig. Figures 1 to 3 show the components of the fall protection system: There are two versions of the railing, with round posts and square posts. The railing is attached using roof hooks, which are mounted to the roof battens and roof tiles. The roof tile and the underlying batten are clamped within the roof hook (this applies to all subsequent descriptions relating to roof hooks and battens). The roof hook is clamped to the batten, and the roof tile, along with the batten, is clamped in place.

[0037] The roof hooks are height-adjustable thanks to a screw system. A roof hook with an eyelet provides personal protection during the installation of the fall protection system by being connected to fall arrest ropes and attached to a harness.

[0038] The pipes (10, 11) are fitted with a square iron (spring) at the bottom and the pipe clamp ( Fig. 7) with a recess (groove) i.e. tongue and groove principle as anti-rotation protection, so that the pipes cannot rotate away in the clamp and can stay in position (90 degrees to the roof skin).

[0039] Fig. Figures 1-3: These figures show the details of the railing. The handrails and knee rails (1, 2) are attached to the posts (3, 11). The round hooks (3) on the posts are fastened with screws (4). There are two post options: post (3) is square, post (11) is round. The first option with post (3) is foldable thanks to the railing bracket (6), which also serves as a connecting element for components (5) and (10), which are joined with screws (7) and nuts (8). Component (12) represents the round post and is connected to the second post (11). The toe board (9) is attached in the same way as the handrails and knee rails (1, 2).

[0040] The distance from the roof surface to the baseboard is 10 cm. The distances between the roof surface and the lower edge of the handrail, as well as the distance between the upper edge of the handrail and the lower edge of the knee rail, are each 47 cm.

[0041] Fig. 4-5: These illustrations show the assembly of the railing bracket (6). Four screws (7) and four nuts (8) are used for fastening. The assembly of the hooks (3) is also shown, which are used with the help of the screws (4) to attach the handrails and knee rails (1, 2).

[0042] Fig. Figures 6-7 show further details.

[0043] Fig. Figure 8 shows a plate to the left of the post illustration (12) that is intended to rest on the roof tile. This plate must be covered with foam rubber or a similar material in the contact area to better absorb minor unevenness, vibrations, or loads and to ensure a more stable support. This should also prevent any damage to the roof tiles, such as scratches on the surface or breakage of a tile under load. A broken tile would not compromise the safety and function of the fall protection system. The plate can also be bent to ensure it rests securely on both tiles. This increases the load-bearing area and prevents a concentrated load on a single tile.

[0044] Fig. 17: This illustration shows the components of roof hook variant 1 for battens with attachment variant 1 (square). The F-shaped roof hook component (14) and the S-shaped roof hook component (15) are pre-assembled and joined together with the screw (19). The S-shaped roof hook component (15) and the L-shaped roof hook component (16) for roof battens are pre-assembled with the screw (18), and the height is adjustable. The assembled hook is attached to the roof batten and secured by tightening the screw (18), with the hook's "teeth" providing additional grip. The roof tile and the underlying roof batten are clamped within the roof hook. The square posts (10) are inserted between two roof hook components (13, 14) and fastened with a screw (17).

[0045] Fig. 9-12: These illustrations show this roof hook from different perspectives. See further explanations. Fig. 17.

[0046] Fig. 13-16: These illustrations show this roof hook from different perspectives after it has been hooked or clamped in place.

[0047] Fig. 25: This illustration shows the components of roof hook variant 1 for battens with attachment variant 2 (round). The lower and upper halves of a half-clamp (20, 21) are connected with the screw (23), creating a round clamp that can be opened. The lower half of a half-clamp (20) and the S-shaped roof hook component (15) are pre-assembled with the screw (19). The S-shaped roof hook component and the L-shaped roof hook component for roof battens (15, 16) are pre-assembled with the screw (18), and the height is adjustable. The assembled hook is clamped to the roof batten and secured by tightening the screw (18). The "teeth" of the hook provide additional grip and engage with the wood to prevent slippage. The roof tile and the underlying roof batten are thus clamped within the roof hook.The round posts (11) are inserted between the lower half of a half-clamp (20) and the F-shaped roof hook component (14) and secured with the wing nut (22). The pipes (11, 12) are fitted with a square iron (spring) on ​​the underside, and the pipe clamp has a recess (groove), thus employing a tongue-and-groove principle as an anti-rotation device, so that the pipes cannot rotate in the clamp and can remain in position (90 degrees to the roof surface).

[0048] Fig. 20-23: These illustrations show this roof hook from different perspectives after it has been hooked or clamped and connected to the post (11).

[0049] Fig. 26: This illustration shows the PPE (personal protective equipment) set for attaching the fall protection system.

[0050] This provides protection during the installation of the fall protection system. First, the person puts on the helmet (27) and the harness (26). The roof tile or...

[0051] The roof tile and the underlying roof batten are clamped inside the hook with eyelet (24).

[0052] One end of the fall arrest rope (25), which has a carabiner hook on it, is attached to position (24), while the other end is hooked onto the fall arrest harness (26).

[0053] Fig. 27-28: These illustrations show roof hook variant 1 for battens with attachment variant 3 (eyelet).

[0054] Fig. 29-31: In the next extension or as a third variant, the hand and knee rails are replaced by a fold-out, ladder-like railing (28).

[0055] This change facilitates transport and increases assembly speed without compromising safety.

[0056] In this extension, or third variant, screws are dispensed with on almost all components, and instead, as many parts as possible are secured with quick-release fasteners ( Fig. 32, Fig. 33).

[0057] Fig. 34, Fig. Figure 35 shows carrying bags for the entire fall protection system. The smaller bag (32) is for the roof hooks, screws, etc., and the longer bag (31) is for the posts or the ladder-like railing (28).

[0058] Fig. 36, Fig. 37: These roof hooks are to be offered as a further option. Unlike the roof hooks in... Fig. 17 and Fig. 25 on the rafters and not on the battens. This ensures an even more stable and secure hold. The construction and use are largely identical to the roof hooks in Fig. 25. The only difference lies in the component (30), which is used instead of component (16). These roof hooks can be used if necessary when the roof battens appear too weak or are rotten, or if the roof battens are unusable for other reasons.

[0059] Fig. 38, Fig. 39: These roof hooks are to be offered as an additional option. These roof hooks correspond to those in Fig. 36 and Fig. 37 with the difference that this is a square attachment variant.

[0060] Fig. 40: This figure shows component (30) of the roof hook for rafters (variant 3 and variant 4) in detail. See further explanations. Fig. 36-39. Operating principle of the fall protection system for roofs according to the invention

[0061] The following section explains in detail how the fall protection system for roofs according to the invention works: Step 1: Preparing the work area: Before accessing the roof, scaffolding or suitable fall protection is erected to ensure protection against falls on the eaves side. Step 2: Using the PPE and attaching the roof hooks with eyelet ( Fig. 26): - Put on the helmet (27) and put on the harness (26). - Determine where the roof hooks should be installed. - Before attaching the roof hooks, check the roof battens for stability. If they are rotten, choose a different batten or a different gable fall protection system. - Securely attach the hooks with eyelets (24) under the tiles on the post. To do this, also lift the top roof tile, insert the clamp, and then slide the tile back into place; this will make it rainproof. - Then attach the carabiner hook (25) of the previously fitted safety belt (26) to the eyelet of the hook (24). Step 3: Attaching the roof hooks to the roof battens: - Determine where the roof hooks should be installed. - Before attaching the roof hooks, check the roof battens for stability. If they are rotten, choose a different batten or a different gable fall protection system. - Use the roof hooks “Variant 1 - square” ( Fig. 17) or “Variant 2 - round” ( Fig. 25). Slide the roof tile above it upwards from the fixing point and clamp the roof hook onto the roof tile and the roof battens, then tighten screw 18. The teeth of the hook provide additional grip. - Replace the top roof tile so that rain cannot get in and everything stays dry. Step 4: Inserting the posts: - For the square posts ( Fig. ): Slide the post (10) between the U-shaped and the F-shaped component (13, 14) and secure it with the screw (17). - For the round posts ( Fig. 25): Slide the post (11) between the upper and lower halves of the half-clamp (20, 21) and secure it with the wing nut (22) or a quick-release fastener. The post (11) has a square steel bar (spring) on ​​the underside, and the pipe clamp has a groove (tongue and groove) to prevent the pipes from rotating within the clamp and to keep them in position (90 degrees to the roof surface). Step 5: Assembling the handrails, knee rails and toe boards ( Fig. ): - Attach the hand and knee rails (1, 2) and baseboards (19) to the posts (3) or (11). - Use the round hooks (3) on the posts and secure them with screws (4). Additional note: - In the next expansion, or in the third variant, these strips will be replaced by a fold-out ladder-like railing ( Fig. 29-31). Step 6: Connecting the components: - Use the railing bracket (6) as a connecting element for components (5) and (10). - Connect these parts with screws (7) and nuts (8). Additional note: - In the next expansion, or the third variant, screws will be omitted on almost all components, and everything will be secured with quick-release fasteners wherever possible ( Fig. 32-33). Step 7: Examination and conclusion: - Make sure that all screws are tightened and all parts are securely mounted. - Before you begin work, test the stability of the entire fall protection system. Step 8: After completion of the work: - Put on your safety belt and then remove the fall protection device.

[0062] Robust materials: High-quality, durable aluminum and stainless steel components ensure reliability and ease of maintenance.

[0063] User-friendliness: Simple and intuitive operation, even for inexperienced users.

[0064] Investment security: Long-term security and reliability for construction sites.

[0065] If the completed fall protection system has been professionally installed on the roof, a worker can support himself on the handrail (1) and the knee rail (2) to prevent himself from falling off the roof.

[0066] The fall protection system is particularly easy to install on standard roofs with roof tiles, as the tiles on many roofs can be easily slid upwards. Concrete tiles can be easily slid upwards, and clay tiles can be lifted out and replaced after the roof hook is attached. The fall protection system can then be secured to the roof battens and tiles using the roof hooks, or clamped in place by the battens and tiles.

[0067] If the fall protection system, in addition to the railing and roof hook, includes a first post (10), a roof post (5) connected to the first post (10), a second post (11), and a post assembly (12) connected to the second post (11), the fall protection system can be implemented with minimal material consumption – and therefore in an environmentally friendly manner. In particular, no expensive metal or wooden panels need to be used.

[0068] When the guardrail is connected to the first post (10) and the second post (11), and the roof hooks are connected to a roof post (5) or a post bracket (12), it marks the end of the work area and ensures that a worker working backward toward the gable end notices that they have reached the end of the work area and cannot proceed any further. Without fall protection, the worker might take one last step and fall. The fall protection also protects the worker from falling in the event of a slip or trip. Of course, one can also hold onto it to prevent slipping in the first place.

[0069] Thanks to the roof hooks, the post representation (12) and the roof post (5) are firmly anchored and can also provide additional support for the workers' feet. This is particularly relevant when workers have to carry out work on a rain-soaked roof after a rainy day.

[0070] The first post (10) can be connected to the roof post (5) directly or via a railing bracket (6).

[0071] The second post (11) can be connected to the post representation (12) directly or via a railing angle (6).

[0072] The railing brackets (6) offer the advantage of making the posts (10, 11), the post representation (12), and the roof post (5) interchangeable. For example, if workers are working on a particularly wide roof, the post representation (12) and the roof post (5) must also extend across the entire width to provide the workers with improved footing. On narrower roofs, however, it is unnecessary for the post representation (12) and the roof post (5) to extend beyond the shorter roof. Thanks to the railing brackets (6), the post representation (12) and the roof post (5) can be replaced with versions of different lengths.

[0073] As an alternative to the handrail (1) and knee rail (2), a ladder-shaped structure, in particular a folding rail (28), can also be used for the railing. This structure offers the advantage that workers have to carry fewer parts when assembling the fall protection system. The "rungs" of the ladder-shaped structure also serve as an additional handhold for workers in case of emergency.

[0074] The railing can optionally be foldable. In this case, it is particularly easy to store and transport in a bag.

[0075] Each of the roof hooks can also have teeth that allow it to "bite" firmly into the roof battens once the fall protection system is fully installed. This reinforces the hold of the fall protection system on the roof beams, making it even more stable than a fall protection system without toothed roof hooks.

[0076] Each of the roof hooks can comprise an S-shaped component (15) and an L-shaped component (16) connected to each other in such a way that these two components form a structure that can grip around the roof battens. This allows the roof hooks to be connected particularly well to the roof battens, making the fall protection system especially stable.

[0077] Each of the roof hooks can include an S-shaped component (15) and an L-shaped component (30) that can be connected to the S-shaped component (15) and to a roof rafter. This allows the fall protection system to be installed even in locations on the roof where there is no roof batten in sufficient proximity to the roof hooks.

[0078] Furthermore, it is proposed that - a roof hook comprises an F-shaped component (14) that can be connected to the S-shaped component (15) and to an essentially rectangular tube, - a roof hook comprises a U-shaped component (13) that can be connected to the F-shaped component (14), - a roof hook comprises a half clamp (20, 21) which can be connected to the S-shaped component (15) and to an essentially cylindrical tube, and that - the roof hooks include a screw system with which the railing can be attached to the roof battens and / or rafters as well as the roof tiles, or clamped to the roof battens and / or rafters as well as the roof tiles.

[0079] An F-shaped component (14) allows a roof hook to be connected to a square tube in such a way that the F-shaped component (14) already covers three of the four sides of the tube without the need for an additional component. The tube is placed inside the F-shaped component (14). This creates a sufficiently stable connection between the tube and the roof hook, so that only one person is needed to close the connection between the tube and the roof hook. It is recommended that the F-shaped component protrude slightly beyond the tube when clamped. This makes closing the connection particularly easy later on.

[0080] To close the connection, a U-shaped component (13) is recommended. The U-shaped component (13), which consists of two substantially parallel arms and a central connecting element that is substantially perpendicular to the arms, is leaned against the last open end of the square tube with the outer side of the central connecting element facing the other. This clamps the square tube all around between the F-shaped component (14) and the U-shaped component (13). The connection can be closed with a single screw (17) that passes through the F-shaped component and the two arms of the U-shaped component. In this way, a connection between the roof hook and the square tube can be made using simple and commercially available components.

[0081] A screw system allows the roof hooks to be connected relatively easily, yet securely, to the rest of the fall protection system, the roof battens or rafters and the roof tiles.

[0082] The roof hooks can have half-clamps (20, 21) for connecting them to the rest of the scaffolding. This is particularly advisable if the rest of the fall protection system has one or more cylindrical tubes to which one or more roof hooks are to be connected. For example, commercially available cylindrical tubes can be used for the post representation (12) and / or the roof post (5). This offers increased flexibility in the selection of components for the fall protection system. The half-clamp (20, 21) allows the roof hooks to be easily connected to the tubes.

[0083] A toe board (9) is also an integral part of the fall protection system. It prevents the workers' feet from slipping sideways off the roof. Reference symbol list 1 Handlebar 2 Knee rail 3 first connecting element 4 second connecting element 5 roof posts 6 railing brackets 7 Connecting screw 8 Connecting nut 9 Baseboard 10 first post 11 second post 12 post representation 13 U-shaped roof hook components 14 F-shaped roof hook components 15 S-shaped roof hook components 16 L-shaped roof hook components for roof battens 17 first screw for roof hook 18 second screw for roof hook 19 third screw for roof hook 20 lower half of a half-bell 21 upper half of a half-clamp 22 Wing screw for half clamp 23 Screw for half clamp 24 roof hooks with eyelet (PPE) 25 Safety ropes with carabiners 26 Harness 27 Protective helmet 28 Folding bar 29 quick-release fasteners 30 L-shaped roof hook components for rafters (variant 3) 31 First carrier bag 32 Second carrying bag 33 roof hooks for trapezoidal sheet metal roofs 34 roof hooks for standing seam roofs

Claims

[1] Fall protection for roofs, especially for the sides of pitched roofs, characterized by that the fall protection system comprises a safety device and roof hooks which can be attached to the roof in their lower area and to the safety device in their upper area, the attachment, wherein the safety device in particular comprises a handrail (1), a knee rail (2), a toe rail (9) and a railing with a first post (10) and a second post (11), wherein in particular four roof hooks are provided, wherein the fall protection system can preferably be attached, in particular clamped, to roof battens and / or rafters and to roof tiles by means of the roof hooks, and wherein in particular both the upper area and the lower area of ​​the roof hooks are replaceable. [2] Fall protection for roofs according to claim 1, characterized by, that the fall protection includes a roof post (5) connected to the first post (10) and a post representation (12) connected to the second post (11). [3] Fall protection for roofs according to claim 2, characterized by , that the railing is connected to the first post (10) and the second post (11) and the roof hooks are connected to the roof post (5) or the post representation (12). [4] Fall protection for roofs according to claim 2, characterized by , that the roof post (5) is connected to the first post (10) via a railing angle (6). [5] Fall protection for roofs according to claim 2, characterized by , that the post representation (12) is connected to the second post (11) via a railing angle (6). [6] Fall protection for roofs according to claim 1, characterized by , that the railing is angular and a ladder-shaped railing (28). [7] Fall protection for roofs according to claim 1, characterized by that the railing is square and foldable. [8] Fall protection for roofs according to claim 1, characterized by , that a roof hook includes teeth. [9] Fall protection for roofs according to claim 1, characterized by , that a roof hook comprises an S-shaped component (15) and an L-shaped component (16), wherein the L-shaped component can be connected to the S-shaped component to form a structure encompassing a roof batten. [10] Fall protection for roofs according to claim 1, characterized by , that a roof hook comprises an S-shaped component (15) and an L-shaped component (30) which can be connected to the S-shaped component (15) and to a roof rafter.

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