Stop device

Abstract

Anchor device (1) to protect against falls, - with a base plate (11), - and with a stop post (2) comprising an upper segment (3), preferably having a stop eyelet (8) at its free end (7), and a lower segment (4) which is connected on the one hand to the upper segment (3) and on the other hand to the base plate (11), wherein the stop post (2) is designed to absorb part of the fall energy by deformation in the event of a fall, - and with at least one mounting connector (17) for connecting the base plate (11) to a profile rail (15) serving as a force-absorbing structure, wherein the mounting connector (17) is designed to be inserted into an open cross-section (30) of the profile rail (15) in order to introduce the transmission force remaining after absorbing part of the fall energy into the rail cross-section in the event of a fall, for which purpose the mounting connector (17) rests on a number of surfaces (22, 21, 25) of the profile rail (15) in the mounted state.

Description

The invention relates to a stop device for the fall prevention. Moreover, the invention relates to a system providing crash safety, comprising a roof mounting structure and at least one stop device.To realize safety concepts in the field of crash safety for industrial applications, in particular for working on roofs, point-shaped fuses (individual stop points) as well as line systems (linearly movable fuses, in particular cable safety systems and rail systems) are known.A point-shaped securing is provided in this case above all at stationary workstations or defined maintenance points. The securing is effected directly at a permanently installed point.The post for the single stop point (stop post), which is usually made of stainless steel or galvanized steel, is generally mounted on the roof framework or connected to the underlying surface (e.g. a concrete slab) through the roof skin. Individual stop points type A must be able to statically absorb a force introduction of at least 12 kN for a user according to DIN EN 795:2012 and must survive dynamic tests (drop tests with 100 kg test weight).Each individual stop point must be connected to a supporting structure in such a way that the forces required in the standards can be reliably absorbed. To ensure the force introduction according to the norm, a mechanical connection to the supporting structure is produced. For different load-bearing structures, different types of connections are possible, such as dowels or heavy-duty anchors in concrete ceilings or screw or welded connections in steel sub-structures.Recently, due to frequent regular fitting of roofs with solar technology, there is an ever more frequent question of whether a secondary roof mounting structure, i.e. a structure different from both the roof framework and the roof skin, can also be used as a supporting structure for individual abutment points, e.g. photovoltaic sub-structures such as changes in the build-up for an elevated or inclined mounting of solar modules on a flat roof or rail systems (PV rails) for photovoltaic modules.Such roof mounting structures are not primarily designed to absorb large individual forces from camber loads (12-20 kN) at points and dynamically. Instead, such roof mounting structures are usually dimensioned only for vertical surface loads (wind, snow) and not designed for high horizontal point loads (fall). Above all, however, the material dimensioning (e.g. aluminum rails with a wall thickness of 1.5 mm) is usually insufficient for fall protection.It would indeed be conceivable to use special aluminum profiles with inserted steel core or reinforced cross section. However, this would significantly increase the cost of the roof mounting structures.The stop point could also be mounted on a steel cross bar connecting two or more PV rails, so that the load is introduced into the rail system not at certain points but distributed over a plurality of rails. However, a comparatively high assembly effort would be necessary for this purpose. In addition, the result would be visually conspicuous. In addition, this solution presupposes that at the desired location for the individual stop point there are at least two suitable PV rails which are at a suitable distance from one another.It would likewise be conceivable to use a reinforcing plate in the sense of a lining of the PV rail, wherein a screw connection into the roof framework is effected which extends through the rail. However, this would require placement of the roof mounting structure immediately adjacent to the roof framework. Moreover, in such a case, the roof mounting structure would not serve as a force-absorbing structure as intended; instead, the roof framework itself would absorb all forces again here.An object of the present invention is to provide a crash safety device on a conventional secondary roof mounting structure, wherein the roof mounting structure is a profile rail, in particular an aluminum profile rail, and serves as a force-absorbing structure of the crash safety device.This object is achieved by a stop device according to claim 1 or by a system for providing a crash safety device according to claim 11. Advantageous embodiments of the invention are specified in the dependent claims or result from the following description and / or the appended figures.The advantages and embodiments explained below in connection with the stop device also apply analogously to the system according to the invention and vice versa.The crash restraint system of the present invention includes a base plate, a restraint post, and at least one mounting connector. The stop post comprises an upper segment, preferably having a stop eye at its free end, and a lower segment which is connected on the one hand to the upper segment and on the other hand to the base plate. The stop post is configured to absorb a part of the camber energy by deformation in the event of a camber by the upper segment bending. The mounting connector is designed to connect the base plate to a profile rail serving as a force-absorbing structure. The mounting connector is designed for insertion into an open cross section of the profiled rail in order to introduce the transmission force remaining after absorbing a part of the camber energy into the rail cross section in the event of a camber, for which purpose the mounting connector rests on a number of surfaces of the profiled rail in the mounted state.The system according to the invention for providing a crash safety comprises at least one profile rail and at least one stop device according to the invention connected to the profile rail.The solution according to the invention provides an individual stop point which is designed such that it is capable of reliably absorbing the forces occurring in the event of a crash and of forwarding them to a secondary roof mounting structure serving as a force-absorbing structure for the crash protection in such a way that the roof mounting structure can absorb these forces reliably, in particular when the roof mounting structure is a profiled rail, in particular an aluminum profiled rail.According to a preferred embodiment of the invention, this is especially advantageous when the profiled rail is part of a roof mounting structure which is different from both a roof supporting structure and a roof skin. Preferably, this profile rail and / or this roof mounting structure are not designed to cooperate with a stop device or a crash safety device or to serve as a load-transferring structure for a stop device or a crash safety device. Preferably, this profile rail and / or this roof mounting structure are designed and designed exclusively for mounting loads on roofs, in particular for mounting components of a photovoltaic installation. Preferably, this profile rail consists of an aluminum material and has a small wall thickness, for example 1.5 mm. The profile rail can also be referred to as an aluminum profile or an aluminum mounting rail. Typically, it is an extruded aluminum profile.In summary, on the one hand, the deformation of the stop post in the event of a crash is controlled by the provision of a controlled bending line, which leads to improved control in the event of a crash, to the reduction of force peaks and to a particularly safe energy absorption. For this purpose, the different bending stiffnesses of an asymmetric cross section of the stop post are used. As a result, a substantial portion of the camber energy is absorbed by the deformation of the stop post. On the other hand, the connection to the roof structure is not effected directly, but rather via an independent mounting connector which is designed for the introduction of forces into an existing profile rail. The mounting connector can be connected to the profiled rail in a form-fit and / or force-fit manner in such a way that the profiled rail can reliably absorb the remaining transmission energy and thus serve as a force-absorbing structure for the fall prevention means.The invention preferably provides a stop device which is also referred to as an individual stop point (EAP) and is classified as a stop device type A (fixed, non-displaceable individual stop point) according to DIN EN 795:2012. In particular, the invention provides an individual stop device.According to a preferred embodiment of the invention, the stop post is designed to absorb a part of the camber energy by deformation in the event of a fall, in particular by elastic or, preferably, plastic deformation.According to a preferred embodiment of the invention, the stop post is designed such that the upper segment in the event of a fall bends in a specific manner in a predetermined plane. In other words, the stop post or a part thereof deforms under the action of a crash force as an external load in a specific, predefined direction, namely along a controlled bending line and with a calculable bending moment profile. In other words, the stop post is designed in such a way that it deflects in a precisely provided plane when overloaded and thereby absorbs energy. This is used constructively to ensure that the post deforms e.g. away from the roof edge or in a non-dangerous direction.According to a preferred embodiment of the invention, the stop post is designed to absorb a part of the camber energy by deformation in the event of a fall, in that the upper segment is deformed, in particular bent, exclusively. The subsegment is designed in such a way that it does not deform in the event of a fall and instead ensures a secure connection to the base plate.According to a preferred embodiment of the invention, the upper segment has a non-round, preferably rectangular cross section, in particular a cross section with a distinct difference in major axes. In this way, a desired direction control of the deformation takes place, since in the case of asymmetric cross sections (e.g. oval, flat, rectangular), the bending resistance in the main axes is different and the deformation preferably occurs in the weaker axis. In other words, the post will preferably bend about the weaker axis when overloaded; the bending occurs in the plane of the narrow side. This means that a controlled bending line is implemented structurally by the geometric design of the cross section and not by a material weakening provided in the desired bending zone (e.g. notches, recesses, grooves). The bending axis results solely from the shape of the post, so that this solution can be implemented particularly easily in terms of design. The placement of targeted predetermined bending points, i.e. an additional reduction of the bending strength at defined longitudinal zones by notches, transverse slots, reduced wall thicknesses or the like, is not necessary.According to a preferred embodiment of the invention, the upper segment consists of a rod-shaped flat material, so that two different main axes (weak axis, strong axis) with different surface stiffnesses are obtained. In other words, a lower resistance in a desired bending axis is achieved by targeted shaping.The lower bending resistance in a selected direction allows progressive, energy-consuming deformation, which is ideal for absorbing impact loads. The stop post does not fold sideways in an uncontrolled manner, but rather moves in a calculable manner in a defined direction, namely in the preferred bending direction, which is predetermined by the lower resistance about the small axis. Such a defined bending behavior reduces the risk of secondary accidents, for example, due to sharp-edged bending or swinging into a danger zone.According to a preferred embodiment of the invention, the stop post is connectable to the base plate in at least two different ways that result in different positions of the upper segment relative to the base plate. In other words, stop posts and / or base plate are designed in such a way that an optional mounting of the lower segment is possible in two different orientations, in particular offset by 90°, in order to optionally enable a deformation of the upper segment in the longitudinal direction of the profile rail or transversely thereto. In other words, the post is mounted on the base plate such that the desired deformation direction corresponds to the weak axis. In the simplest case, only the base plate must have a number of suitably arranged, additional bores for the offset screw mounting of the post.According to a preferred embodiment of the invention, in the event of a fall, the upper segment undergoes a deformation in a deformation zone (bending zone). According to a preferred embodiment of the invention, this deformation zone is geometrically defined by the segment connection. In other words, the upper segment and the lower segment are connected to one another in such a way that the upper segment experiences a deformation in a deformation zone (bending zone) in the event of a fall. Preferably, the connection of upper segment and lower segment is designed in such a way that a bending edge or another type of predetermined bending point is formed in the region of the connection between lower and upper segments.According to a preferred embodiment of the invention, the stop post is formed in multiple parts. According to a preferred embodiment of the invention, the upper segment and the lower segment are two separate parts of such a multi-part stop post, wherein the upper segment is preferably deformable and the lower segment is preferably non-deformable, rigid. Preferably, the connection between the upper and lower segments is secured in a form-fitting and / or force-fitting manner.According to a preferred embodiment of the invention, the stop post is designed in such a way that the upper segment has a predetermined bending point. Preferably, only the upper segment, but not the lower segment, has a predetermined bending point. Preferably, the upper segment has only a single predetermined bending point.According to a preferred embodiment of the invention, the predetermined bending point of the upper segment is provided by the lower segment in the form of a controlled bending edge or bending zone guide for the upper segment. In other words, the lower segment, via its clamping geometry, specifically defines the preferred bending direction of the upper segment.According to a preferred embodiment of the invention, a predetermined bending point of the upper segment is provided in that the upper segment is designed in the manner of a cantilever clamped on one side, in particular is rigidly clamped in the lower segment, whereby a bending edge for the upper segment exists at the upper end of the lower segment, i.e. pointing in the direction of the stop eye. In other words, the rigid non-deformable subsegment itself serves as a bending edge and ensures that deformation of the upper segment begins at this location. Such a bending edge is understood to mean a defined geometric transition zone at which a specific concentration of deformation (bending) is to take place. At the transition between rigid clamping (lower segment) and flexible part (upper segment), the highest bending moment load occurs.According to a preferred embodiment of the invention, the connection between the upper segment and the lower segment takes place exclusively by screwing, which enables simple dismantling and re-useability and at the same time ensures a fixed mechanical connection. Additional welded or bonded joints are completely dispensed with.According to a preferred embodiment of the invention, the lower segment has two L-shaped retaining brackets, which are fastened by their one (in particular the short) L-legs to the base plate and are screwed by their other (in particular the long) L-legs to the lower end of the upper segment. In other words, the clamping takes place via two mutually opposite L-angles made of flat material, which stably guide the upper segment in the intended bending plane. In this way, a simple and at the same time secure force-locking connection of the lower segment and the upper segment is achieved. Moreover, this type of connection allows simple dismantling and replacement of the upper segment after a crash event.According to a preferred embodiment of the invention, the upper segment and the lower segment are connected to one another in such a way that the upper segment is tiltable with respect to the lower segment. In other words, the upper segment can be selectively tilted. In an optional embodiment of this type, the upper segment is in particular tiltable with respect to the lower segment in order to optimize the visibility or the sun exposure of solar modules when not in use. In a simple variant, a screw axle and a removable locking bolt are used for the release of movement. The tilting function can be operated purely manually, serves for handling in operation and is independent of forces which could occur in the event of a crash.According to a preferred embodiment of the invention, the lower part of the stop post connected to the base plate is formed by the lower segment and the upper segment running parallel to the lower segment and mechanically connected to the lower segment, while the upper part of the stop post is formed exclusively by the upper segment. In other words, the post has a larger cross section at its lower part than at its upper part having the stop eye.According to a preferred embodiment of the invention, the lower segment provides a bending edge by a geometrically defined step or a step, preferably in such a way that the lower segment ends at its end pointing in the direction of the stop eye with a geometrically defined edge, while the upper segment runs over this edge. In this way, the transition between the (lower) part of the stop post, which is formed by both the lower segment and the upper segment, and the (upper) part of the stop post, which is formed exclusively by the upper segment, is mechanically weakened or geometrically focused and a natural bending line is produced there. When the post is bent in the event of a fall, material stress and stresses concentrate on this zone and a targeted deformation of the upper segment begins directly above the lower segment. The bending edge is preferably provided exclusively by such a step or shoulder. A defined material weakening on the upper segment, in particular in the form of a notch geometry in the upper segment, for example by grooves or incisions, is not necessary.According to a preferred embodiment of the invention, the mounting connector is designed to be insertable into an open cross section of the profiled rail in such a way that in the event of a fall the transmission force remaining after absorbing part of the fall energy is introduced into the entire rail cross section or into almost the entire rail cross section. In order to achieve this, the mounting connector is preferably designed in such a way that the residual force introduced onto the base plate in the event of a fall is introduced into the profiled rail over its surface via the mounting connector.According to a preferred embodiment of the invention, the mounting connector is designed in such a way that both the force transmission from the base plate into the mounting connector and the force transmission from the mounting connector into the profile rail preferably take place exclusively via positively locking and / or non-positively locking bearing surfaces.Preferably, the force transmission from the base plate into the mounting connector takes place exclusively via force-locking bearing surfaces and a screw connection. In other words, the transmission of forces takes place by frictional forces as a result of contact pressure between the contact surfaces, caused by the screw connection.According to a preferred embodiment of the invention, the force transmission from the mounting connector into the profile rail takes place via positively and non-positively locking bearing surfaces. This means that, in addition to a frictional connection, a frictional connection serves for transmitting forces into the profiled rail. In other words, force transmission takes place by interlocking shapes, independently of friction.According to a preferred embodiment of the invention, the profiled rail has an essentially U-shaped cross section, i.e. has a U base (base web, profiled base) and two U legs, in particular in the form of vertically projecting side walls (side legs).According to a preferred embodiment of the invention, the mounting connector has at least one first bearing surface for bearing on the profile rail and at least one second bearing surface for bearing on the profile rail, wherein the first bearing surfaces are arranged perpendicular or substantially perpendicular to the second bearing surfaces. According to a preferred embodiment of the invention, the mounting connector has at least two first bearing surfaces for bearing on the profile rail and at least two second bearing surfaces for bearing on the profile rail.According to a preferred embodiment of the invention, the mounting connector is made of flat material and has the shape of a bridge spanning the profile rail from side limb to side limb. Preferably, the mounting connector is in each case folded twice in the region of its two ends. This produces U-shaped sections of the mounting connector at both ends.According to a preferred embodiment of the invention, the mounting connector in the mounted state clamps from one U-leg of the profile rail to the other U-leg of the profile rail and in this case bears both on both inner sides of the profile rail side legs and on the U-base of the profile rail. In other words, the mounting connector rests with its central region on the U-base of the profiled rail. At the same time, the two bent U-shaped ends of the mounting connector bear against the inner sides of the U-limbs of the profiled rail, so that a three-sided bearing surface is produced, with a bearing surface on the base (U base) and two bearing surfaces on the inner sides of the U-limbs. In the middle, the mounting connector is screwed to the base plate of the stop point or mechanically connected in another suitable manner. By screwing the base plate to the central region of the mounting connector, the mounting connector is pressed onto the profiled rail. This produces a contact pressure on the bearing surfaces. The frictional forces which are produced secure the connection in a force-fitting manner against displacement.Advantageously, outside brackets are additionally used, which are fastened to the outsides of the U-legs of the profile rail. The brackets are connected to the profile rail and the mounting connector by at least two screws per bracket. As a result, the movement of the mounting connector is limited in a positive and / or non-positive manner, in particular against lifting, against lateral displacement and against tilting. In other words, additional tabs made of flat material are screwed from the outside to the U-legs of the profiled rail, so that the mounting connector is held in a form-fit and / or force-fit manner. According to a preferred embodiment of the invention, the mounting connector rests flat on the U base and on the inner sides of the U legs of the profiled rail and is pressed by screws in a force-fit manner onto the profiled rail. In addition, a positive and / or non-positive fixing is effected by tabs attached to the outer sides of the U-legs, which tabs prevent a movement of the mounting connector relative to the profile rail via screw connections.According to a preferred embodiment of the invention, the mounting connector is designed in two parts, wherein the two parts overlap in the central region and are screwed together to the base plate. The overlap of the two sections allows flexible adaptation to different PV rail widths or assembly conditions.According to a preferred embodiment of the invention, the base plate has elongated holes for receiving the screws in order to compensate for assembly tolerances. In other words, the slots allow tolerance compensation, whereby assembly is simplified, in particular in the case of inaccuracies caused by construction sites.According to a preferred embodiment of the invention, to create a variant capable of multiple persons, two adjacent mounting connectors are rigidly connected to one another via a connecting bridge, so that the load distribution takes place on two profiled rails. This increases the safety and load-bearing capacity.In summary, the invention relates to a stop device for securing against falling, in particular for use on roofs with installed mounting structures for photovoltaic modules or the like. Known individual stop points are usually designed to be rigid and are connected directly to the roof framework, which requires additional roof penetrations. A combination with photovoltaic mounting structures without reinforcement has not been provided up to now. The invention provides a stop device which is energy absorbing and which securely introduces it into existing photovoltaic rails without direct connection to the roof framework. For this purpose, a special embodiment of the stop post is provided, wherein the upper segment is deformed in the event of a fall. By using a special mounting connector, the residual forces are introduced into the photovoltaic rail. The advantages of the invention lie, inter alia, in the use of existing photovoltaic assembly structures. No roof penetration is necessary. In the event of a fall, a controlled deformation takes place. Production and assembly are comparatively cost-effective. The stop post can be designed in several parts, so that the upper segment can be easily replaced after a fall. The force-carrying components may be made of conventional stainless steel or alternatively galvanized steel. This ensures the necessary corrosion resistance and long-term strength. The invention can also be applied to any roofs with an installed mounting structure, such as flat roofs, metal roofs or bitumen roofs.The invention provides an energy-absorbing stop device which is effective in terms of safety and completely dispenses with a direct, direct mechanical connection to the roof framework.An exemplary embodiment of the invention is explained in more detail below with reference to the drawings. The following are shown here: FIG. 1 shows a stop device in a perspective view, FIG. 2 shows the stop device from FIG. 1 in a side view.All the figures show the invention not to scale, in this case only schematically and only with its essential components. Identical reference numerals correspond to elements of the same or comparable function. The terms "upper" and "lower" refer to the intended state of use of the stop device 1, it being assumed that the stop eyelet of the stop post is arranged at the upper end of the stop device 1 and the mounting connector is arranged at the lower end of the stop device 1.The invention relates to an individual stop device 1 for safety against fall, which can be used in particular on roofs with existing mounting or carrier systems for photovoltaic modules, in particular when a profile rail is used as the mounting or carrier system. The invention provides an energy-absorbing stop device which is effective in terms of safety and completely dispenses with a direct mechanical connection to the roof framework.This enables simple, non-destructive retrofitting even in existing photovoltaic systems.The stop device 1 comprises a multi-part stop post 2 consisting of a rod-shaped upper segment 3 with a rectangular cross section and a lower segment 4 consisting of two opposing L-angles 5, 6. The upper segment 3 carries at its free upper end a stop eye 8 for connection to a personal collection system. The lower end 7 of the upper segment 3 is clamped between the long legs of the L-shaped holders 5, 6 and screwed to them. The short legs of the holders 5, 6 are in turn connected to a base plate 11 of the device 1, namely likewise screwed. This construction results in a defined mechanical clamping of the upper segment 3, functionally comparable to a cantilever clamped on one side.In the variant shown, the upper segment 3 is manually tiltable with respect to the lower segment 4. The connection is effected by means of a screw 26 as the hinge axis and a removable locking bolt 29 as a locking means. Once the locking bolt 29 has been removed, as shown in the figures, the upper segment 3 can be pivoted to the side, for example in order to avoid adjacent photovoltaic modules being shaded. The tilting function is not functionally coupled to the energy consumption and serves exclusively for practical handling.The upper segment 3 is specifically designed such that it plastically deforms in the event of a fall. The bending line 12 geometrically defined by the segment connection is indicated in FIG. 2 with a dash-dot line. The deformation takes place by the one-sided clamping and the formation of a bending edge 13 at the upper end of the L-angles 5, 6, as indicated in FIG. 1 by a broken line. The deformation zone 31 of the upper segment 3 is formed in the region above the bending edge 13.The rod-shaped flat material of the upper segment has a main axis difference due to its rectangular cross section (width>>thickness), wherein the bending stiffness about the strong main axis (parallel to the wide side) is significantly greater than about the weak main axis (parallel to the narrow side). The asymmetric surface inertia of the rectangular cross section defines a preferred bending direction of the upper segment 3. Due to the main axis difference, the upper segment 3 deforms preferably about the weak axis under bending load, whereby a controlled bending line 12 is realized. The location of the bending zone 31 results from the geometric and mechanical boundary conditions of the connection of upper segment 3 and lower segment 4. The plastic deformation of the upper segment 3 serves to absorb a part of the kinetic energy generated in the event of a fall. As a result, the remaining impact force, which is introduced into the profiled rail 15 via the base plate 11, is significantly reduced.After a crash event, the upper segment 3 can be disassembled and replaced by a new segment. This increases serviceability and reduces maintenance costs. Replacement is possible with standard tools.The base plate 11 has a plurality of fastening bores 16, which make it possible to mount the subsegment 4 in two alignments offset by 90° with respect to one another. As a result, it can be selected on site whether the preferred bending direction of the upper segment 3 is to run parallel or transversely to the profile rail 15. This function increases the flexibility in integration into different mounting situations.The profiled rail 15 has a U-shaped, open cross section 30 with a bottom profile 22 and two U-legs 22, wherein the U-legs 22 have inwardly directed, i.e. mutually facing, projections 21 at their free ends. This profile rail 15 or a comparable mounting structure forms the load-bearing structure.The base plate 11 is connected on its two transverse sides 10 to a mounting connector 17 in each case, which is provided for being received in the aluminum profiled rail 15. Each mounting connector 17 has a substantially U-shaped cross section. It consists of flat material, wherein the U base 18 has end-side bent portions which form the U legs 34 of the connector 17. Centrally between its U-legs 34, the connector 17 has a central region 33 which extends offset in height with respect to the remaining U-base 18 and at which it is connected to the base plate 11. In the mounted state, the mounting connector 17 bridges the two U-legs 20 of the profiled rail 15.A force introduction in a planar, force-locking manner into the profiled rail 15 is ensured by the connector 17 resting both on the bottom profile 22 of the rail 15 and on the inner sides of the U-legs 20. This results in first bearing surfaces 23 and second bearing surfaces 24 of the mounting connector 17 for bearing on the profile rail 15, wherein the first bearing surfaces 23 are arranged on the undersides of the U base 18 of the connector 17 perpendicular to the second bearing surfaces 24 on the outsides of the U legs 34 of the connector 17. In its central region 33, the connector 17 is screwed to the base plate 11.In addition, external tabs 19 are provided, which are fastened to the outer sides of the U-legs 20 of the profiled rail 15 and are screwed to the U-legs 34 of the mounting connector 17. Each tab 19 is screwed to at least two screws 28 in order to ensure a secure connection protected against rotation. The connection is designed overall such that it works exclusively by mechanical force locking and / or form locking. No special screws are required.In the variant shown, the mounting connector 17 is embodied in two parts, namely with two connector parts 17 a, 17 b. In this case, the central region 33 is formed by overlapping zones 27 of the connector parts 17 a, 17 bwhich are screwed together with the base plate 11. This embodiment allows a flexible adaptation to different widths of the profile rail 15 and facilitates assembly, in particular in the case of tolerances on the construction site side. For further compensation of assembly play, the screw bores 32 in the base plate 11 can be embodied as elongated holes. In the illustrated example, the connector parts 17 a, 17 bare designed identically. By using non-identical connector parts (not shown) which take into account the dimensional deviations resulting from the overlap, an exact and accurate arrangement of the mounting connector 17 on the profile rail 15 can be achieved.For applications with higher safety requirements, a variant capable of multiple persons is provided. For this purpose, two adjacent mounting connectors 17 are rigidly connected to one another via a connecting bridge (not shown). The forces which occur are thereby distributed over two profile rails 15, which reduces the point load and increases the load-bearing capacity of the system.The stop device 1 can be used on all roof surfaces with installed rail structures, for example flat roofs with changes in impact, metal roofs or bitumen roofs with mounting rails. A direct connection of the stop device 1 to the supporting roof structure is not necessary.All the supporting components of the stop device 1 are preferably made of stainless steel. Alternatively, galvanized or coated steel variants are possible. The choice of material depends on the requirements for corrosion resistance and mechanical strength.The present invention enables a secure, energy-absorbing fall protection on existing mounting structures and represents a technically elegant and economically advantageous solution.All features shown in the description, the following claims and the drawings can be essential to the invention both individually and in any combination with one another.These features or combinations of features can each be a reason for an independent invention, the use of which is expressly reserved.When specifying a combination of features defining an invention, individual features from the description of an exemplary embodiment do not necessarily have to be combined with one or more or all other features specified in the description of this exemplary embodiment; in this respect, each sub-combination of features of one or more exemplary embodiments is expressly disclosed.In addition, physical features of the device may be used in a formulated manner as method features and method features may be used in a formulated manner as physical features of the device. Features transformed in this way are implicitly disclosed.List of reference characters1 Stop device 2 Stop post 3 Upper segment 4 Lower segment 5 First L angle 6 Second L angle 7 Lower end 8 Stop eye 9 (free) 10 Transverse side 11 Base plate 12 Bending line 13 Bending edge 14 (free) 15 Profiled rail 16 Screw bore 17 Mounting connector 18 U base of connector 19 Tab 20 U leg of profiled rail 21 Protrusion 22 Bottom profile of profiled rail 23 First bearing surface 24 Second bearing surface 25 (free) 26 Screw, segment connection 27 Overlap zone 28 Screw 29 Locking bolt 30 Open cross section 31 Deformation zone 32 Elongated hole 33 Central region 34 U leg of connectorReferences included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Cited Non-Patent LiteratureDIN EN 795:2012

[0019]

Claims

A stop device (1) for securing against falling, - having a base plate (11), - and having a stop post (2), having an upper segment (3), preferably having a stop eye (8) at its free end (7), and having a lower segment (4) which is connected on the one hand to the upper segment (3) and on the other hand to the base plate (11), wherein the stop post (2) is designed to absorb a part of the falling energy by deformation in the event of falling, - and having at least one mounting connector (17) for connecting the base plate (11) to a profile rail (15) serving as a force-absorbing structure, wherein the mounting connector (17) is designed to be inserted into an open cross section (30) of the profile rail (15) in order to introduce the transmission force remaining after absorbing a part of the falling energy into the rail cross section in the event of falling, For this purpose, the mounting connector (17) in the mounted state rests on a number of surfaces (22, 21, 25) of the profiled rail (15).Stop device (1) according to claim 1, wherein the stop post (2) is configured to absorb a part of the fall energy by deformation in the event of a fall, by the upper segment (3), preferably exclusively the upper segment (3), deforming.Stop device (1) according to claim 1 or 2, wherein the stop post (2) is designed such that the upper segment (3) in the event of a fall bends in a targeted manner in a predetermined plane and / or along a predetermined bending line (12).Stop device (1) according to claim 2 or 3, wherein the upper segment (3) has a non-round, preferably rectangular cross section, preferably consists of a rod-shaped flat material.The stop device (1) according to any one of claims 2 to 4, wherein the stop post (2) is connectable to the base plate (11) in at least two different ways that result in different positions of the upper segment (3) to the base plate (11).Stop device (1) according to one of Claims 1 to 5, wherein the upper segment (3) and the lower segment (4) are connected to one another in such a way that, in the event of a fall, the upper segment (3) experiences a deformation in a deformation zone (31), which deformation zone is defined by the segment connection.The stop device (1) according to claim 6, wherein the upper segment (3) and the lower segment (4) are two separate parts of the stop post (2).Stop device (1) according to claim 6 or 7, wherein the upper segment (3) is designed in the manner of a cantilever clamped on one side, in particular is rigidly clamped in the lower segment (4), whereby a bending edge (13) for the upper segment (3) exists at the upper end of the lower segment (4).Stop device (1) according to one of Claims 1 to 8, wherein the mounting connector (17) is designed in such a way that the force transmission from the base plate (11) into the mounting connector (17) and / or the force transmission from the mounting connector (17) into the profile rail (15) takes place via positively locking and / or non-positively locking bearing surfaces (23, 24).Stop device (1) according to one of claims 1 to 9, wherein the mounting connector (17) has at least one first bearing surface (23) for bearing on the profile rail (15) and at least one second bearing surface (24) for bearing on the profile rail (15), wherein the first bearing surfaces (23) are arranged perpendicular or substantially perpendicular to the second bearing surfaces (24).System for providing a fall prevention device, comprising - at least one profile rail (15), wherein the profile rail (15) preferably has a substantially U-shaped cross section (30), and - at least one stop device (1) according to one of claims 1 to 10 connected to the profile rail (15).The system according to claim 11, wherein the profile rail (15) is part of a roof mounting structure different from both a roof framework and a roof skin, which roof mounting structure is designed and designed for mounting loads on roofs, in particular for mounting components of a photovoltaic system.

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