EP4022152B1 - Dispositif de retenue destiné à la fixation détachable sur un toit de bâtiment et protection contre les chutes dotée d'un tel dispositif de retenue - Google Patents

Dispositif de retenue destiné à la fixation détachable sur un toit de bâtiment et protection contre les chutes dotée d'un tel dispositif de retenue Download PDF

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Publication number
EP4022152B1
EP4022152B1 EP20774882.3A EP20774882A EP4022152B1 EP 4022152 B1 EP4022152 B1 EP 4022152B1 EP 20774882 A EP20774882 A EP 20774882A EP 4022152 B1 EP4022152 B1 EP 4022152B1
Authority
EP
European Patent Office
Prior art keywords
holding device
tensioning
clamping arm
tensioning arm
arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20774882.3A
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German (de)
English (en)
Other versions
EP4022152C0 (fr
EP4022152A1 (fr
Inventor
Hans Wepfer
Samuel Krebs
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Individual
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Individual
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Publication date
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Publication of EP4022152A1 publication Critical patent/EP4022152A1/fr
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Publication of EP4022152C0 publication Critical patent/EP4022152C0/fr
Publication of EP4022152B1 publication Critical patent/EP4022152B1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32—Safety or protective measures for persons during the construction of buildings
    • E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
    • E04G21/3223—Means supported by building floors or flat roofs, e.g. safety railings
    • E04G21/3233—Means supported by building floors or flat roofs, e.g. safety railings without permanent provision in the floor or roof
    • E04G21/3242—Means supported by building floors or flat roofs, e.g. safety railings without permanent provision in the floor or roof using clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/10—Arrangements for positively actuating jaws using screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B25B5/163—Jaws or jaw attachments
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32—Safety or protective measures for persons during the construction of buildings
    • E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
    • E04G21/3214—Means for working on roofs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
    • E04G5/041—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffolds on roof frameworks or on roofs
    • E04G5/043—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffolds on roof frameworks or on roofs for fastening scaffolds on gutters

Definitions

  • the invention relates to a holding device for releasably attaching to a building roof.
  • the invention further relates to a fall protection device with such a holding device.
  • protective scaffolding To carry out work on a structure, for example a building, it is typically common to use protective scaffolding. These protective scaffolds are not intended to be used to carry out work on the structure, but rather to protect workers from falling and to protect passers-by from falling components. Such protective scaffolds are usually designed as standing scaffolds that have a scaffold part that stands on the ground.
  • standing scaffolding has disadvantages in that, on the one hand, a relatively large and flat floor area is necessary for the part of the scaffolding standing on the floor and, on the other hand, the height from the floor to the area to be secured by means of the protective scaffolding must first be bridged. Particularly if roof work is to be carried out on the structure or on the building, securing the workers or passers-by using scaffolding is therefore complex.
  • the publication GB 2 291 920 B describes a rail as a safety rail for a roof, which can be mounted on a free edge of a structure, for example a parapet or a floor in a multi-story building, in such a way that there is no longer a need to build scaffolding from the floor to the roof.
  • a large number of clamps are attached to the free edge of the structure.
  • the clamps have rods with two mounting posts that extend perpendicular to the rod on either side of the structure and are adjustable toward and away from the structure.
  • the publication US 2003 042 072 A1 also describes safety rails that can be installed around roofs to prevent workers from falling to the ground. Depending on your needs, the safety rails can be mounted either on a parapet or an overhanging ledge roof perimeter.
  • the safety rails are horizontal rails that are supported by a plurality of vertical supports, which in turn are attached to the roof using support brackets.
  • the support holders include a clamp having a substantially C-shaped frame having a first leg portion, a second leg portion, and a back portion connecting the first and second leg portions.
  • the first leg section is designed integrally with the back section and the second leg section is designed for displaceable adjustment.
  • the support holders also each have a support adapter in which the corresponding support can be accommodated.
  • the known protective scaffolding or fall protection is not suitable for safely preventing a worker from falling everywhere, that is, at any position on the roof.
  • the known devices and systems can only be used to a limited extent - if at all - on roofs with a sloped roof surface.
  • roofs with a sloped roof surface such as mansard roofs, hipped roofs, pyramid roofs, pent roofs and especially gable roofs.
  • the invention is therefore based on the object of providing a holding device for releasably attaching to a building, which eliminates the above-mentioned problems and disadvantages of the prior art.
  • the invention is also based on the object of providing a fall protection device which also eliminates the above-mentioned problems and disadvantages of the prior art.
  • the solution according to the invention consists in specifying a holding device for releasable fasteners on a building roof, in particular in an area of a verge of the building roof, which has the following: at least one tensioning element which is elongated and has a first longitudinal extension direction; a first clamping arm having a clamping element carrier, the clamping element carrier supporting the clamping element; a second tension arm; and a connecting device with a second longitudinal extension direction that connects the first clamping arm to the second clamping arm, wherein at least one of the first clamping arm and the second clamping arm is a movable clamping arm which is movable relative to the connecting device in such a way that a distance between the first clamping arm and the second clamping arm, into which a part of the building roof can be clamped, is designed to be changeable, wherein in a state of the holding device mounted on the building roof, the first longitudinal extension direction of the at least one clamping element is aligned at least substantially orthogonally to
  • the task is solved in a satisfactory manner.
  • mount the holding device on a verge Building roof, i.e. in the area of the side end of the roof surface.
  • the holding device described can also be used advantageously in other areas of the building roof.
  • the tensioning element which is elongated in the first longitudinal direction and is arranged on the first tensioning arm (by means of the tensioning element carrier), it is possible to distribute the forces acting on the building roof when the holding device is in the attached state.
  • the clamping element transmits force to the building roof along this entire elongated horizontal surface due to its elongated ontal surface to the building roof. The force is therefore applied to the roof over a longer area, and in particular not to a small central area.
  • the direction of longitudinal extension is understood to be the direction in which the longest extension of the corresponding element is present. In relation to the clamping element, this means, for example, that the clamping element is elongated in the (first) longitudinal direction.
  • the clamping element carrier which carries the clamping element or is connected or at least connectable to the clamping element, can be formed integrally (in one piece) with the first clamping arm.
  • the clamping element carrier can be connected to the clamping arm directly (that is, without any additional intermediate element) or indirectly (that is, with at least one further intermediate element (connecting element)).
  • the connection itself can be of a detachable, insoluble or conditionally detachable nature. Examples of non-detachable connections are welded connections, exemplary detachable connections are screw connections and exemplary conditionally detachable connections are rivet connections.
  • first clamping arm is connected to a clamping element
  • second clamping arm is connected to such an (elongated) clamping element.
  • the holding device according to the invention can therefore alternatively also have, for example, two clamping elements.
  • all aspects described with regard to the first clamping arm still apply to the second clamping arm.
  • At least one of the clamping arms is designed as a movable clamping arm.
  • the other clamping arm can also be designed as a movable clamping arm or as a fixed clamping arm.
  • a fixed clamping arm offers advantages in that the complexity of the overall system is reduced, making it simpler and more cost-effective to manufacture.
  • a further movable clamping arm offers advantages in that a clamping movement of the two clamping arms relative to one another can be carried out from two directions. Depending on the location of use of the holding device, one of the two clamping arms may be difficult to access, so that the possibility of also clamping the holding device via the other clamping arm simplifies the use of the holding device.
  • the first longitudinal extension direction of the at least one clamping element is aligned at least substantially orthogonally to the second longitudinal extension direction of the connecting device.
  • At least essentially orthogonal is also understood to mean a direction that deviates from the exact vertical by up to 10 degrees.
  • an exactly perpendicular alignment of the two components to one another is preferred, in practice a smaller deviation often cannot be prevented.
  • the deviation is preferably kept as small as possible, for example within a range of 5 degrees, particularly preferably within a range of 1 degree.
  • the first longitudinal extension direction extends, for example, at least essentially parallel to the verge or, more precisely, a verge rafter (beam on the verge that runs from the eaves (drip edge) to the ridge (horizontal upper edge of the roof)) of the building roof .
  • the second longitudinal extension direction of the tensioning element extends at least substantially orthogonally therefrom and also at least substantially orthogonally to the sloping roof surface of the building roof to which the holding device is attached.
  • the clamping element is at least so long in the first longitudinal direction that it is in the When the building roof is installed, it comes into contact with two adjacent roof tiles, preferably verge tiles.
  • the length of the tensioning element in the first longitudinal direction therefore depends directly on the roof tiles used. For example, if roof tiles in the shape of the “Frankfurt pan” are used, the following sizes result: The “Frankfurt pan” has a size of 330 x 420 mm. This results in an average deck length (average measurement of ten test tiles pushed into the longitudinal folds and ten test tiles drawn into the longitudinal folds) of 312 to 345 mm. In order to come into contact with two adjacent (overlapping) roof tiles, the length of the tensioning element in the first longitudinal direction must be at least 312 to 345 mm for a "Frankfurt pan".
  • the above illustration is only intended to illustrate, as an example, how the minimum length of the tensioning element can be calculated for two roof tiles.
  • the length of the clamping element in the first longitudinal direction is at least 300 mm and preferably at least 350 mm.
  • the resulting size range should apply to common roof tiles.
  • the dimensions of the tensioning elements in the first longitudinal direction can certainly deviate from the specified size range and the desired effect is still achieved (that is, in contact with two adjacent roof tiles).
  • the structure and shape of the holding device is shown in such detail that it is possible at this point to define the relative dimensions of the clamping element by referring to the desired result (in contact with two adjacent roof tiles).
  • the tensioning element is at least so long in the first longitudinal direction that it comes into contact with three adjacent roof tiles, preferably verge tiles, when mounted on the building roof.
  • a minimum length of the clamping element of preferably 600 mm, particularly preferably 700 mm, is specified.
  • the clamping element should therefore be designed so long that it comes into contact or rests with more than one roof tile in the state mounted on the building roof, so that the holding device can be held securely on the building roof and the roof tiles are not damaged local force is prevented.
  • the clamping element is at least partially, preferably completely, made of a material that has a lower hardness than the material of the clamping element carrier.
  • the material of the tensioning element is a material that has a lower hardness than the material of a roof tile of the building roof.
  • a typical material for a roof tile is fired clay. It is therefore possible to bring the tensioning element into contact with the roof tiles without the risk of the roof tiles being damaged.
  • the tensioning element distributes the forces acting on the roof tiles over several roof tiles and, on the other hand, is made of a material that prevents damage to the roof tiles.
  • the material of the clamping element is plastic, preferably an elastomer.
  • the material of the clamping element is particularly preferably solid foam rubber.
  • the material of the clamping element carrier can be, for example, metal, preferably steel. Alternatively, it can also be a light metal, such as aluminum, so that the holding device has only a low weight.
  • the clamping element does not have to be made entirely of the “softer” material. Rather, it would also be conceivable for the clamping element to be made of a harder material (for example the same material as the material of the clamping element carrier) and to have a coating made of the softer material. The coating can be completely on the outer surfaces of the clamping element be applied. However, it would also be sufficient if this was only formed on the internal surfaces of the roof tiles.
  • the clamping element carrier has at least essentially a U-shaped cross section.
  • the clamping element is preferably arranged within the U-shaped cross section.
  • the clamping element is thus protected against slipping on three sides of the clamping element carrier and is securely accommodated in the clamping element carrier.
  • One side of the tensioning element remains free and can come into contact with the roof tiles when mounted on the building roof.
  • the U-shaped cross section also helps to control or limit deformation of the clamping element under load. When deformed, the clamping element abuts against the three sides of the U-shaped cross section.
  • the clamping element is at least essentially tubular.
  • this has the advantage that the clamping element can be easily compressed due to the hollow interior area and can therefore, for example, be pressed into the clamping element carrier during assembly (and held there by means of frictional force).
  • the tubular shape also leads to a good and even distribution of force when the clamping element is loaded.
  • Outer diameters for the clamping element in a size range between 30 mm and 50 mm, preferably between 35 mm and 45 mm, and particularly preferably sizes of approximately 40 mm have been found to be particularly preferred.
  • the length of the clamping element carrier corresponds at least substantially to the length of the clamping element.
  • the length is the dimension in the main extension direction or longitudinal extension direction of the corresponding element. This also means that the The main direction of extension of the clamping element carrier is aligned parallel to the main direction of extension of the clamping element.
  • the length of the clamping element carrier is then particularly large, so that force distribution over a large area is also possible.
  • a third longitudinal direction of extension of the first clamping arm and a fourth longitudinal direction of extension of the second clamping arm intersect at an angle that is less than 90 degrees.
  • the assembled state is a state in which the holding device is pre-assembled, but is not yet mounted or attached to the roof.
  • the first clamping arm and the second clamping arm are therefore not aligned parallel to one another, but rather slightly inclined to one another.
  • the first clamping arm and the second clamping arm have a forward inclination towards each other.
  • This forward inclination is, for example, less than 5 degrees, preferably less than 2 degrees, and particularly preferably approximately 1 degree.
  • the forward inclination prevents the first tensioning arm and the second tensioning arm from being tensioned in their state mounted on the roof in such a way that they are slightly fanned out (widened), that is, inclined away from each other.
  • the pretension of the two tension arms relative to each other can prevent expansion of over 90 degrees when attached to the roof. If the two clamping arms are spread out too widely, their holding effect is reduced, so that the reliability of the holding device decreases.
  • the position of the clamping arms relative to one another can fulfill an indicator function.
  • a fitter knows that the holding device is sufficiently tensioned when the pretension of the two tensioning arms relative to one another has (visually) been released, i.e. the two tensioning arms are parallel to one another. This makes it possible for a fitter to conclude that the assembly has been carried out correctly.
  • the connecting device has a threaded spindle and an at least partially hollow connecting strut, in which the threaded spindle is arranged at least partially.
  • the threaded spindle is used to convert a rotational movement into a translational movement.
  • the threaded spindle has, for example, a threaded rod, i.e. a cylindrical round rod, on which, for example, a thread (preferably designed as a trapezoidal or flat thread) is or can be applied.
  • the connecting strut is completely hollow and particularly preferably has a tubular shape.
  • the threaded spindle in turn is preferably arranged completely within the hollow connecting strut. This means that the mechanics of the threaded spindle are protected from environmental influences, contamination and interference within the strut.
  • the threaded spindle is connected at one end to a nut, by means of which the threaded spindle can be rotated.
  • the nut makes it possible to easily transfer power from a tool, such as a cordless screwdriver, to the threaded spindle.
  • the first clamping arm and the second clamping arm each also have the following: a clamping arm holder which is designed to connect the corresponding clamping arm to the connecting device; and a sliding holder slidably connected to the tension arm holder.
  • the clamping arm holder is correspondingly movably connected to the connecting device. If it is a non-movable clamping arm, the clamping arm holder, on the other hand, is not movable, that is, firmly connected to the connecting device. It would then be conceivable that Clamping arm holder and the connecting device are formed in one piece, or that the clamping arm holder is attached to the connecting device in a non-releasable, releasable or conditionally releasable manner.
  • the clamping arm holder is particularly preferably welded to the connecting device.
  • the sliding holder is connected to the clamping arm holder so as to be displaceable in a direction that is aligned parallel, in particular concentric, to the longitudinal direction of the respective clamping arm.
  • the holding device thus offers the possibility of lengthening and shortening the respective clamping arms using the sliding holder, so that the holding device can be adapted to the conditions necessary for reliable fastening.
  • moving the sliding holder changes the distance from the point at which an area of the roof is clamped to the connecting device.
  • the holding device preferably has a locking device by means of which the position of the sliding holder relative to the clamping arm holder can be determined.
  • the sliding holder has a guide which limits the movement of the sliding holder relative to the clamping arm holder to an at least substantially translational movement.
  • a rotational movement of the sliding holder relative to the clamping arm holder would lead to an (unintentional) expansion of the clamping area (i.e. the area between the two clamping arms). Accordingly, the reliability of the holding device would be severely impaired.
  • the clamping arm holder has, for example, a corresponding elongated projection which is (exclusively) translationally movable within the guide of the sliding holder.
  • the clamping arm holder of the at least one movable clamping arm has a threaded element or is connected to a threaded element which engages with the threaded spindle in such a way that the at least one movable clamping arm moves translationally relative to the connecting device when the threaded spindle rotates.
  • the threaded element of the clamping arm is therefore the counterpart for the threaded spindle or for the threaded rod of the threaded spindle.
  • the threaded element can be introduced (directly) as a thread into the clamping arm, so that a one-piece component is formed, or can be a separate element that is connected to the clamping arm (for example by means of a welded connection).
  • the threaded element can also be designed to be replaceable. This creates the advantage, for example, that a defective or worn threaded element can easily be replaced by a new threaded element. This can be achieved, for example, using a separate threaded nut.
  • the movable clamping arm it would also be possible for the movable clamping arm to tilt on a corresponding guide. Through appropriate dimensional ratios and appropriate choice of materials, a self-locking effect that occurs and is intentional in the design prevents the clamping arm from moving further on the guide. The principle is then similar to a screw clamp.
  • the second clamping arm has a thread which is arranged and aligned at least substantially transversely to the longitudinal extension direction of the second clamping arm.
  • the first clamping arm and/or the second clamping arm may further comprise a fine adjustment device which has the following: a support area which, in the assembled state, comes into contact with one side of the part of the building roof to be clamped; a threaded rod that comes with connected to the support area; and an adjusting nut by means of which the distance between the support area and the corresponding clamping arm can be adjusted.
  • a fine adjustment device which has the following: a support area which, in the assembled state, comes into contact with one side of the part of the building roof to be clamped; a threaded rod that comes with connected to the support area; and an adjusting nut by means of which the distance between the support area and the corresponding clamping arm can be adjusted.
  • the threaded rod is in engagement with the thread, which is arranged and aligned at least substantially transversely to the longitudinal direction of the second clamping arm.
  • the connecting element which is formed between the clamping element carrier and the first clamping arm, to be designed as such a fine adjustment device. A fine adjustment could then be carried out from the first tensioning arm and from the second tensioning arm.
  • At least the second tensioning arm can have the fine adjustment device, wherein the threaded rod engages with the thread in such a way that the distance between the support area and the second tensioning arm can be adjusted.
  • the clamping arm which is not connected to the clamping element, has a fine adjustment.
  • the support area can, for example, be plate-shaped and preferably comes into contact with an area of the roof opposite the tensioning element.
  • the adjusting nut is a stepped nut which has a first engagement area for a tool of a first size and a second engagement area for a tool of another second size, preferably the adjusting nut is a 2-stage cap nut.
  • the adjustment or setting of the adjusting nut is more universal than with conventional nuts.
  • the design as a 2-stage cap nut improves corrosion protection and, on the other hand, the hat shape reduces the risk of injury when operating the cap nut.
  • the nut and the adjusting nut have an engagement area for a tool of the same size.
  • the holding device further has a support element which is designed to support a region of a fall protection device.
  • the fall protection device can be, for example, a fall railing, a fall net holder or the like.
  • the area of the fall protection device can be plugged onto the support element or into the support element.
  • the support element must be easily accessible and be able to fulfill its function, i.e. carrying the fall protection device. It is possible for the support element to be arranged, for example, on the connecting device (in particular by welding). However, the support element could also be arranged on the clamping element carrier or the connecting element. However, the support element is preferably arranged on the first clamping arm, and particularly preferably on the clamping arm holder.
  • the support element is arranged on the clamping arm holder, it is preferably designed to be insertable into the clamping arm holder. This also means that the clamping arm holder is designed in such a way that the support element can be inserted into it at least in certain areas. If the support element is, for example, tubular, the clamping arm holder has a hole into which the support element can be inserted.
  • the holding device can have a locking device by means of which the position of the sliding holder relative to the clamping arm holder can be determined. If the support element is now inserted or inserted into the clamping arm holder, the support element can also be fixed (releasably) via the locking device.
  • the locking device can therefore fulfill a dual function here.
  • the support element makes it easy to install the fall protection device.
  • holding devices are first attached to the roof and then areas of the fall protection device are arranged on support elements of the holding device.
  • the areas of the fall protection device are plugged onto the support elements or vice versa.
  • the support element has at least one hole as a securing element.
  • the support element has at least one hole and the area of the fall protection device has an associated hole, it is possible to insert a pin element through the two holes so that the fall protection device can be held securely on the support element.
  • the solution according to the invention further consists in specifying a fall protection device which has the following: At least two of the previously described holding devices; and at least one fall protection device.
  • the task is solved in a satisfactory manner.
  • this makes it possible to reliably prevent a worker from falling from a roof with at least one sloping roof surface and to protect passers-by from falling parts of the building.
  • FIG. 1 shows a schematic view of a fall protection device that is attached to a roof 10, in particular to a verge of the roof 10.
  • the fall protection device has two holding devices 100 that attach a fall protection device 200 to the roof 10.
  • the fall protection device 200 here has two posts, each of which is connected to one of the holding devices 100.
  • the posts represent the areas of the fall protection device that are supported by the holding devices 100.
  • the posts are connected to several crossbars (two crossbars are shown here as an example), which are intended to prevent a worker from falling from the roof.
  • the fall protection device 200 shown here is therefore designed as a fall railing. Alternatively, training as a fall net holder or training as a more complex fall railing would also be possible. In addition, it would be conceivable that not two holding devices 100, but a plurality of holding devices 100 are attached to the roof.
  • the Figure 2 shows an enlarged view of one of the holding devices 100.
  • the holding device 100 is attached to the roof 10, which has several tiles (11, 11 ',).
  • the brick above the brick 11 overlaps the brick 11 in an upper region and the brick 1 1 'overlaps the brick under the brick 1 1' in an upper region thereof.
  • the bricks are arranged to overlap one another.
  • the holding device 100 has a clamping element 140 which comes into contact with an outer surface of the bricks. Shown here, the clamping element 140 rests at least on the brick 11 and the brick 11'. Alternatively, however, it would also be conceivable for this to also rest on the brick above the brick 11 and/or the brick below the brick 11'. When we talk about relative terms like “above” or “below,” they always refer to the figure being described.
  • the main direction of extension (longitudinal direction) of the clamping element 140 is a direction from bottom to top in the plane of the drawing Figure 2 into it.
  • the longitudinal direction of the tensioning element 140 is parallel to the longitudinal direction of the bricks 11, 11'.
  • the clamping element 140 is held by a clamping element carrier 150, by means of which force can be applied to the clamping element 140.
  • the Clamping element carrier 150 has a U-shape, with the open side of the U pointing towards the bricks 11, 11 'in the assembled state.
  • the clamping element 140 can thus be arranged between the bricks 11, 11 'and the clamping element carrier 150 or is arranged in this way.
  • the clamping element 140 is made of a softer material than the bricks 11, 11 ', it can protect them from damage.
  • the clamping element carrier 150 is connected to a first clamping arm 110 of the holding device 100.
  • a (single-armed) connecting element 155 is shown with solid lines, which connects the clamping element carrier 150 to the first clamping arm 110.
  • the connecting element 155 is designed with multiple arms, in Figure 2 four further arms of the connecting element 155 shown in dashed lines are indicated. A higher number of arms offers better force introduction and distribution on the clamping element carrier 150 and can thus improve the holding device 100.
  • Figure 2 is shown in simplified form that the connecting element 155 is formed in one piece with the first clamping arm 110. As already described at the beginning, this can alternatively also be connected to the clamping arm 110 in any other way.
  • a second clamping arm 120 is arranged on the other side of the bricks 11, 11 ', that is to say on an underside thereof.
  • the bricks 11, 11' are thus clamped between the first clamping arm 110 and the second clamping arm 120.
  • the first clamping arm 110 and the second clamping arm 120 are connected by means of a connecting device 130.
  • a clamping arm holder 111 of the first clamping arm 110 is firmly (not movably) connected to the connecting device 130.
  • the second clamping arm 120 also has a clamping arm holder 121, which is movably connected to the connecting device 130. This is as in Figure 2 indicated, the second clamping arm holder 121 is formed with a threaded element 125 which is in engagement with a threaded spindle 131 of the connecting device 130.
  • the threaded spindle 131 can be moved by means of a nut 131a.
  • the threaded spindle 131 which is in engagement with the threaded element 125, also rotates. Consequently, the threaded element 125 and thus also the second clamping arm 120 can be set in a translational movement and the distance between the second clamping arm 120 and the first clamping arm 110 can be changed.
  • the length of the clamping arms 110, 120 can be adjusted by means of a locking device 116 or 126.
  • FIG. 2 An example is in Figure 2 also shown that the holding device 100 has a support element 160 on which the in Figure 1 shown fall protection device 200 can be attached.
  • the support element 160 is arranged on the first clamping arm holder 111, but as an alternative to this an arrangement on the connecting element 155, at another location on the first clamping arm 110 or on the connecting device 130 would also be conceivable.
  • FIG. 3 shows a detailed representation of the holding device 100 in a sectional view.
  • the holding device 100 is shown in a mounted state on the roof 10.
  • the roof 10 itself is shown roughly schematically with a large beam and a tile lying on it, just to give an impression of where the top of the roof (i.e. the tiles) and where the underside of the roof is located.
  • the clamping element 140 rests on the brick and is connected to the first clamping arm 110 by means of the clamping element carrier 150 (here via the connecting element 155).
  • the first clamping arm 110 has the clamping arm holder 111 and a sliding holder 112, the clamping arm holder 111 being translationally displaceable relative to the sliding holder 112 or vice versa.
  • the clamping arm holder 111 has an elongated projection 111a, which can be moved in a guided manner in an elongated guide 112a of the sliding holder 112.
  • the elongated projection 111a and the guide 112a prevent an unwanted rotational movement of the first clamping arm relative to the connecting device 130 from occurring.
  • the second clamping arm 120 also has a clamping arm holder 121, which can be moved in a controlled manner in a sliding holder 122 by means of a guide 122a and an elongated projection 121a.
  • clamping arms 110 and 120 can be lengthened and shortened.
  • these can be at least essentially in Main extension direction (longitudinal extension direction) of the corresponding clamping arm can be lengthened and shortened.
  • the clamping arm holder 121 of the second clamping arm 120 also has the threaded element 125, which is in engagement with the threaded spindle 131 of the connecting device 130 and can be moved by means of this in translation relative to a connecting strut 132 in which the threaded spindle 131 is arranged.
  • a coordinate system with the directions x, y and z is also specified in order to clarify the position of the directions (for example longitudinal directions or main extension directions) relative to one another.
  • the main extension direction of the clamping element 140 and the clamping element carrier 150 runs in the z-direction.
  • the main extension direction of the second clamping arm 120 runs at least essentially in the x direction (or in the -x direction).
  • the main extension direction of the first tension arm 110 also runs in the x direction and thus parallel to the main extension direction of the second tension arm 120.
  • the main direction of extension of the first clamping arm 110 is shown with a slight (-)y directional component. This is intended to illustrate the preload between the first clamping arm 110 and the second clamping arm 120.
  • the second tensioning arm 120 can also have a corresponding inclination, whereby - as mentioned - when the holding device 100 is in the tightened state, forces act that (optically) cancel the pretension to such an extent that the main extension direction of the first tensioning arm 110 is parallel to that of the second clamping arm 120 is aligned.
  • the main extension direction of the connecting device 130, the threaded spindle 131 and, independently of this, the support element 160 runs at least essentially in the y-direction.
  • the support element 160 is also shown in more detail with a bore 161, which serves to secure the fall protection device 200.
  • the second clamping arm 120 has a thread 124 at an outer end (an end opposite the clamping arm holder 121).
  • the thread 124 engages a threaded rod 123b, which has an adjusting nut 123c at one end and a support area 123a at the other end.
  • the support area 123a comes into contact with the roof 10 as a counter-tensioning element for the tensioning element 140.
  • a fine adjustment of the fine adjustment device 123 formed from the support area 123a, threaded rod 123b and adjusting nut 123c is possible.
  • the mounting of the holding device 100 could therefore be carried out in such a way that the distance between the first clamping arm 110 and the second clamping arm 120 is initially roughly adjusted via the nut 131a.
  • the tightening for reliable holding of the holding device 100 then takes place on the second clamping arm 120 via the adjusting nut 123c.
  • the Figure 4 shows an enlarged schematic view of the tension arm holder 111, 121 according to an embodiment of the present invention.
  • it shows Figure 4 an embodiment of the clamping arm holder 121 of the (movable) second clamping arm 120.
  • the clamping arm holder 121 has at least substantially the shape of a cube, with a bore 160a running through the cube, which is designed such that the support element 160 can be inserted into it.
  • the hole 160a runs onto the coordinate system in Figure 3 related in the y direction.
  • the bore 160a is particularly important in the clamping arm holder 111 of the (fixed) first clamping arm 110, into which the support element 160 is actually inserted.
  • the bore 160a is also formed in the clamping arm holder 121 of the (movable) second clamping arm 120.
  • the elongated projection 121a can be clearly seen, by means of which the movement between the clamping arm holder 121 and the sliding holder 122 can be guided or limited.
  • the guide 122a and the elongated projection 121a of the sliding holder 122 can be displaced relative to one another in a controlled manner. This structure allows the tension arm 120 to be lengthened and shortened.
  • the elongated projection 121a is interrupted at an at least substantially centrally arranged point. This means that the elongated projection 121a in this embodiment is actually an elongated projection 121a consisting of two elongated projections.
  • a bore 126a can be seen at the at least essentially central location.
  • the bore 126a and the bore 160a are aligned perpendicular to one another, so that the axes of rotation of the bores 126a and 160a meet at a right angle at a point (in particular a central point in the case of a cube shape).
  • the bore 126a is smaller than the bore 160a, into which the support element 160 can be received, and serves to accommodate the locking device 126 in certain areas.
  • the bore 126a can have a thread.
  • a thread can be arranged on the opposite side to the side having the bore 126a.
  • the locking device 126 can now fulfill two functions. On the one hand, this can be used to determine the position of the sliding holder 122 relative to the clamping arm holder 121 and thus to adjust the length of the sliding arm 120. On the other hand, this can (at the same time) also be used to (releasably) fasten the support element 160.
  • the clamping arm holder 121 does not have an “integrated” threaded element 125, but is connected (welded) to the threaded element 125.
  • the threaded element 125 is designed in two parts and in particular Figure 5 presented in more detail.
  • the threaded element 125 has an elongated guide part 125a and a nut 125b.
  • the nut 125b can be inserted into the elongated guide part 125a and removed again. This makes it easy to replace the thread.
  • Threaded element 125 shown which consists of an elongated guide part 125a and a nut 125b, is an aspect that can be realized independently of the design of the clamping element 140.
  • the aspects associated with the clamping element 140 are therefore not essential for the design of the threaded element 125.
  • a holding device 100 for releasably fastening to a building roof, in particular in an area of a verge of the building roof which has the following: a first clamping arm 110; a second tension arm 120; and a connecting device 130 connecting the first clamping arm 110 to the second clamping arm 120; wherein at least one of the first clamping arm 110 and the second clamping arm 120 is a movable clamping arm 110, 120, which is movable relative to the connecting device 130 in such a way that a distance between the first clamping arm 110 and the second clamping arm 120, into which a part of Building roof can be clamped, is designed to be changeable, wherein a clamping arm holder 121 of the at least one movable clamping arm 110, 120 is connected to a threaded element 125, which is in engagement with a threaded spindle 131 within the connecting device 130 in such a way that the at least one movable clamping arm 110, 120 moves translationally relative to the connecting
  • the holding device 100 described in the previous paragraph can of course be combined with the embodiments described in the description, so that this results in a holding device 100 which (for example apart from the clamping element 140) can have all the features described in the description. There will be no unnecessary repetition of the individual aspects at this point.
  • the Figure 6 shows a schematic view of another holding device 100, in which the clamping element 140 is not provided. Consequently, the clamping element carrier 150 and the connecting element 155 are not provided here either. Instead is the first Tension arm 110 like the one in Figure 3 second clamping arm 120 shown is constructed. In other words, in this embodiment, the first clamping arm 110 and the second clamping arm 120 are constructed at least essentially the same, with the difference that the second clamping arm 120 is a movable clamping arm.
  • the clamping arm holder 121 of the second clamping arm 120 also has the threaded element 125, which can be brought into engagement with the threaded spindle 131 of the connecting device 130.
  • the clamping arm holder 121 can in particular be the in Figure 4 and 5 act as tension arm holder 121 shown. Consequently, the threaded element 125 can in particular be that in the Figures 4 and 5 shown two-part threaded element 125, which has an elongated guide part 125a and a nut 125b.
  • the support element 160 is connected to the connecting device 130 and in particular extends at least substantially perpendicular to the connecting device 130.
  • the first clamping arm 110 and the second clamping arm 120 each have the thread 124 at an outer end (an end opposite the clamping arm holder 121). Each thread 124 comes, as with the second clamping arm 120 in Figure 3 discussed, engages with the associated threaded rod 123b.
  • the threaded rod 123b has the adjusting nut 123c at one end and the support area 123a at the other end.
  • the adjusting nut 123c is in particular a 2-stage cap nut.
  • the support areas 123a serve to clamp a part of the roof 10 between them.
  • the support areas 123a are preferably plate-shaped, as shown here.
  • a holding device 100 for releasably fastening to a building roof 10, in particular to a flat roof is shown here, for example, which has the following: a first clamping arm 110; a second tension arm 120; a connecting device 130 connecting the first clamping arm 110 to the second clamping arm 120; wherein at least one of the first clamping arm 110 and the second clamping arm 120 is a movable clamping arm 110, 120, which is movable relative to the connecting device 130 such that a Distance between the first clamping arm 110 and the second clamping arm 120, into which a part of the building roof 10 can be clamped, is designed to be changeable.
  • the holding devices 100 shown here can ensure that the fall protection device 200 is held securely on the roof 10, so that fall protection is achieved that can reliably protect workers and passers-by.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Emergency Lowering Means (AREA)

Claims (17)

  1. Dispositif de maintien (100) pour fixation amovible sur un toit de bâtiment (10), en particulier dans une zone d'une rive de toit du bâtiment (10), comportant ce qui suit :
    - au moins un élément de serrage (140), qui est de forme allongée et présente une première direction d'extension longitudinale ;
    - un premier bras de serrage (110) comprenant un support d'élément de serrage (150), ledit support d'élément de serrage (150) supportant l'élément de serrage (140) ;
    - un deuxième bras de serrage (120) ; et
    - un dispositif de raccordement (130) ayant une deuxième direction d'extension longitudinale, qui raccorde le premier bras de serrage (110) au deuxième bras de serrage (120),
    dans lequel au moins l'un du premier bras de serrage (110) et du deuxième bras de serrage (120) est un bras de serrage mobile (110, 120) qui est configuré pour pouvoir être déplacé par rapport au dispositif de raccordement (130) de telle sorte qu'une distance entre le premier bras de serrage (110) et le deuxième bras de serrage (120), dans laquelle une partie du toit de bâtiment (10) est serrable, est variable,
    dans lequel, lorsque le dispositif de maintien (100) est monté sur le toit de bâtiment (10), la première direction d'extension longitudinale de l'au moins un élément de serrage (140) est orientée au moins sensiblement orthogonalement à la deuxième direction d'extension longitudinale du dispositif de raccordement ; et
    dans lequel un support de bras de serrage (121) dudit au moins un bras de serrage mobile (110, 120) est relié à un élément fileté (125) qui est construit en plusieurs parties, et
    dans lequel le dispositif de raccordement (130) présente une entretoise de raccordement (132) creuse au moins par zones, dans laquelle une broche filetée (131) est disposée au moins par zones,
    caractérisé en ce que
    l'élément fileté (125) présente une partie de guidage allongée (125a) et un écrou (125b) qui est inséré de manière amovible dans la partie de guidage allongée (125a) et qui est en prise avec la broche filetée (131) de telle sorte que l'au moins un bras de serrage mobile (110, 120) se déplace en translation par rapport au dispositif de raccordement (130) lorsque la broche filetée (131) tourne.
  2. Dispositif de maintien (100) selon la revendication 1,
    dans lequel l'élément de serrage (140) est réalisé dans la première direction d'extension longitudinale avec au moins une longueur suffisante pour que, une fois monté sur le toit de bâtiment (10), il vienne en appui sur deux tuiles voisines (11, 11'), de préférence des tuiles de rive.
  3. Dispositif de maintien (100) selon la revendication 1 ou 2,
    dans lequel l'élément de serrage (140) est réalisé au moins par zones, de préférence entièrement, dans un matériau qui présente une dureté inférieure à celle du matériau du support d'élément de serrage (150).
  4. Dispositif de maintien (100) selon l'une des revendications précédentes,
    dans lequel le support d'élément de serrage (150) présente au moins sensiblement une section transversale en forme de U.
  5. Dispositif de maintien (100) selon l'une des revendications précédentes,
    dans lequel l'élément de serrage (140) a une forme au moins sensiblement tubulaire.
  6. Dispositif de maintien (100) selon l'une des revendications précédentes,
    dans lequel la longueur du support d'élément de serrage (150) correspond au moins sensiblement à la longueur de l'élément de serrage (140).
  7. Dispositif de maintien (100) selon l'une des revendications précédentes,
    dans lequel, lorsque le dispositif de maintien (100) est assemblé, une troisième direction d'extension longitudinale du premier bras de serrage (110) et une quatrième direction d'extension longitudinale du deuxième bras de serrage (120) se recoupent selon un angle qui est inférieur à 90°.
  8. Dispositif de maintien (100) selon l'une des revendications précédentes,
    dans lequel la broche filetée (131) est reliée à l'une de ses extrémités, qui est associée à l'autre des deux bras de serrage (110, 120), avec un écrou (131a) au moyen duquel la broche filetée (131) est rotative.
  9. Dispositif de maintien (100) selon l'une des revendications précédentes,
    dans lequel l'autre des deux bras de serrage (110, 120)
    - comprend un support de bras de serrage (111, 121) configuré pour relier le bras de serrage correspondant (110, 120) au dispositif de raccordement (130) ; et dans lequel le premier bras de serrage (110) et le deuxième bras de serrage (120) comprennent en outre chacun
    - un support coulissant (112, 122) qui est relié de manière coulissante au support de bras de serrage respectif (111, 121).
  10. Dispositif de maintien (100) selon la revendication 9,
    dans lequel le support coulissant respectif (111, 121) comporte un guide (112a, 122a) qui limite le mouvement du support coulissant respectif (112, 122) par rapport au support de bras de serrage respectif (111, 121) à un mouvement au moins sensiblement de translation.
  11. Dispositif de maintien (100) selon l'une des revendications précédentes,
    dans lequel le deuxième bras de serrage (120) comporte un filetage (124) disposé et orienté au moins sensiblement transversalement à la direction d'extension longitudinale du deuxième bras de serrage (120).
  12. Dispositif de maintien (100) selon la revendication 11,
    dans lequel au moins le deuxième bras de serrage (120) comprend le dispositif de réglage fin (123), et dans lequel la tige filetée (123b) est en prise avec le filetage (124) de telle sorte que la distance entre la zone de support (123a) et le deuxième bras de serrage (120) est réglable.
  13. Dispositif de maintien (100) selon la revendication 12,
    dans lequel l'écrou de réglage (123c) est un écrou étagé présentant une première zone d'engagement pour un outil d'une première taille et une deuxième zone d'engagement pour un outil d'une deuxième taille différente, dans lequel l'écrou de réglage (123c) est de préférence un écrou borgne à 2 étages.
  14. Dispositif de maintien (100) selon les revendications 8 et 13,
    dans lequel l'écrou (131a) et l'écrou de réglage (123c) présentent une zone de prise pour un outil de la même taille.
  15. Dispositif de maintien (100) selon l'une quelconque des revendications précédentes,
    dans lequel le dispositif de maintien (100) comprend en outre un élément de support (160) configuré pour supporter une partie d'un dispositif de sécurité antichute.
  16. Dispositif de maintien (100) selon la revendication 15,
    dans lequel l'élément de support (160) comporte au moins un alésage (161) servant d'élément de sécurité.
  17. Dispositif de sécurité antichute, qui comprend ce qui suit :
    - au moins deux dispositifs de maintien (100) selon la revendication 15 ou 16 ; et
    - au moins un dispositif de sécurité antichute.
EP20774882.3A 2019-08-26 2020-08-26 Dispositif de retenue destiné à la fixation détachable sur un toit de bâtiment et protection contre les chutes dotée d'un tel dispositif de retenue Active EP4022152B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19193603.8A EP3786391B1 (fr) 2019-08-26 2019-08-26 Dispositif de retenue destiné à la fixation détachable sur un toit de bâtiment et protection contre les chutes dotée d'un tel dispositif de retenue
PCT/EP2020/073882 WO2021037931A1 (fr) 2019-08-26 2020-08-26 Appareil de retenue pour fixation amovible à un toit de bâtiment et protection contre les chutes comportant un tel appareil de retenue

Publications (3)

Publication Number Publication Date
EP4022152A1 EP4022152A1 (fr) 2022-07-06
EP4022152C0 EP4022152C0 (fr) 2024-02-07
EP4022152B1 true EP4022152B1 (fr) 2024-02-07

Family

ID=67766087

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19193603.8A Active EP3786391B1 (fr) 2019-08-26 2019-08-26 Dispositif de retenue destiné à la fixation détachable sur un toit de bâtiment et protection contre les chutes dotée d'un tel dispositif de retenue
EP20774882.3A Active EP4022152B1 (fr) 2019-08-26 2020-08-26 Dispositif de retenue destiné à la fixation détachable sur un toit de bâtiment et protection contre les chutes dotée d'un tel dispositif de retenue

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19193603.8A Active EP3786391B1 (fr) 2019-08-26 2019-08-26 Dispositif de retenue destiné à la fixation détachable sur un toit de bâtiment et protection contre les chutes dotée d'un tel dispositif de retenue

Country Status (2)

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EP (2) EP3786391B1 (fr)
WO (1) WO2021037931A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841609A (en) * 1972-03-17 1974-10-15 M Smith Perimeter guard rail system
US3756568A (en) * 1972-04-20 1973-09-04 Waco Scaffold & Shoring Co Removable guard rail stanchion
FR2229834A1 (en) * 1973-05-18 1974-12-13 Deloffre Robert Fixture-pin for upright of a guard-rail - has top jaw fixed to attachment arm along which slides bottom jaw
NL8800985A (nl) * 1988-04-15 1989-11-01 Exploitatiemaatschappij Weurtw Dakbalustrade.
GB2291920B (en) 1994-07-29 1997-08-20 Alexander Robertson Sneddon Method of mounting a rail
DE29713095U1 (de) * 1997-07-23 1998-11-26 Weglage, Georg, 49434 Neuenkirchen-Vörden Haltevorrichtung für Fangwände oder -netze zur Absturzsicherung
US6585080B2 (en) 2001-09-06 2003-07-01 Murray Roofing Company Inc. Modular stanchion holder for removable guard rail system

Also Published As

Publication number Publication date
EP3786391B1 (fr) 2022-06-29
EP3786391A1 (fr) 2021-03-03
EP4022152C0 (fr) 2024-02-07
EP4022152A1 (fr) 2022-07-06
WO2021037931A1 (fr) 2021-03-04

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