EP3507432B1 - Device for preventing persons from falling - Google Patents

Device for preventing persons from falling Download PDF

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Publication number
EP3507432B1
EP3507432B1 EP18700283.7A EP18700283A EP3507432B1 EP 3507432 B1 EP3507432 B1 EP 3507432B1 EP 18700283 A EP18700283 A EP 18700283A EP 3507432 B1 EP3507432 B1 EP 3507432B1
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EP
European Patent Office
Prior art keywords
slotted line
circumferential
circumferential slotted
approximately
post
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
EP18700283.7A
Other languages
German (de)
French (fr)
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EP3507432A1 (en
Inventor
Nils Teiner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dws Pohl GmbH
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Dws Pohl GmbH
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Publication date
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Publication of EP3507432A1 publication Critical patent/EP3507432A1/en
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Publication of EP3507432B1 publication Critical patent/EP3507432B1/en
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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
    • 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
    • E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
    • E04G21/3276—Arrangements on buildings for connecting safety-lines
    • E04G21/329—Arrangements on buildings for connecting safety-lines with measures for dampening the fall
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0043—Lifelines, lanyards, and anchors therefore
    • A62B35/0068—Anchors
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/04—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion incorporating energy absorbing means
    • 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
    • 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
    • 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
    • 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
    • E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
    • 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
    • E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
    • E04G21/3276—Arrangements on buildings for connecting safety-lines
    • 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
    • E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
    • E04G21/3276—Arrangements on buildings for connecting safety-lines
    • E04G21/328—Arrangements on buildings for connecting safety-lines fastened to the roof covering or insulation

Definitions

  • the present invention relates to a device for securing people against falling, in particular from a roof, comprising a footplate which can be fastened to a subsurface with an attachment point which can be attached to the footplate, comprising either a post projecting upward from this footplate and one arranged in the upper end region of the post Eyelet or an eyelet that can be attached directly to the footplate, in each case for attaching a rope or through the direct connection to a rope system by which the person is secured against falling, with a central area of the footplate in which the post or eyelet with the footplate are connected, around the post or the eyelet along at least one first defined circumferential slot line, which extends over at least 270 ° in the circumferential direction, so that the central region is only connected to the remaining peripheral region of the footplate via narrow material webs.
  • Fall protection devices of the aforementioned type have long been known from the prior art and are used in particular to secure people who work on flat roofs.
  • Basic requirements for such a fall protection, in particular with regard to its resilience, are specified in DIN EN 795, the content of which is hereby referred to.
  • a fall protection with a footplate and an upstanding post is also used in the DE 10 2006 041 592 A1 described.
  • the upstanding post which stands on the base plate is, for example, a steel tube with an eyelet at the upper end.
  • Fall arrest systems of this type must be designed for two load cases.
  • One load case is the securing of the post against impact if a person working on the roof accidentally hits the post.
  • a lateral impact force of 70 kg As a rule, with a lateral impact force of 70 kg, a defined deformation value of 10 mm, for example, must not be exceeded.
  • the second actual load case of fall protection according to which the device must withstand a transverse force of 1.2 t so that the tensile load that occurs when a person falls from the roof is absorbed by the rope attached to the eyelet.
  • the tensile force acts on the post in the transverse direction via the eyelet located at the upper end of the post, which creates a moment, so that there is virtually a leverage effect in the area of the base plate Tear out of the anchoring on the roof substructure.
  • the connection between the post and the base plate is designed as a predetermined breaking connection which is released in the event of a fall, a metal cable connection being provided in the interior of the post, by means of which a tensile connection is formed from the eyelet into an anchoring area of the device.
  • the first load case can be covered without further ado, since the post can be designed so that it does not bend more than intended in the requirements in the event of an impact of up to 70 kg, for example.
  • the plastic post is quasi sacrificed.
  • the roof structure only consists of two trapezoidal sheets, between which there is an insulating layer, the upper trapezoidal sheet being connected to the insulating layer only by an adhesive connection. If you now screw a footplate onto the upper trapezoidal sheet and in the event of a fall, a torque is introduced into the footplate via the post, a peeling force arises and the trapezoidal sheet, which is only held in place by adhesive, will tear off with the footplate. For this reason, the usual fall protection systems for such flat roof constructions with glued trapezoidal sheets are not permitted.
  • the object of the present invention is therefore to provide a device for securing people against falling with the features of the type mentioned in the introduction, in which the lever arm shortens in the event of a fall, the torque is minimized and the damage to the roof structure is avoided or at least considerably reduced become.
  • a further approximately rectilinear slot line is arranged at a distance between the respective ends of the first circumferential slot line, said distance between the first circumferential slot line and the further rectilinear slot line Corresponds to the width of the narrow material webs.
  • the solution according to the invention is based ensure that the post is folded close to the roof surface so that the lever arm that the post forms is not extended by parts of the footplate, which would increase the torque.
  • the post already tears out at its foot, through the predetermined breaking point specified there.
  • the linear, further slit line narrows the area of the remaining material and creates a joint, so that the tilting of the post around the desired pivot point of this joint is facilitated.
  • the measure according to the invention shortens the lever arm and prevents damage to the roof structure in the event of a fall.
  • At least a second circumferential slot line with a smaller diameter is located at a radial distance within the first defined circumferential slot line, the shape of which is geometrically similar to the first circumferential slot line, but the second circumferential slot line seen in plan view by about 90 ° or about 180 ° to the first circumferential slot line is arranged offset.
  • At least a third circumferential slot line with a smaller diameter is located at a radial distance within the second defined circumferential slot line, the shape of which is geometrically similar to the first circumferential slot line, but the third circumferential slot line seen in plan view in each case by approximately 90 ° or approximately 180 ° to the first circumferential slot line and / or is arranged offset to the second circumferential slot line.
  • At least a fourth circumferential slot line with a smaller diameter is located at a radial distance within the third defined circumferential slot line, the shape of which is geometrically similar to the third circumferential slot line, but the fourth circumferential slot line seen in plan view in each case by approximately 90 ° or approximately 180 ° to the first circumferential slot line and / or is arranged offset to the second circumferential slot line and / or to the third circumferential slot line.
  • the base plate itself is preferably fixed in a manner known per se to the base by at least one screw connection or rivet connection.
  • the metal cable connection can comprise, for example, a stainless steel cable. This is corrosion-resistant and with a diameter of 6 mm, for example, can easily withstand the required tensile force of more than one ton.
  • a preferred development of the present invention provides that the second circumferential slot line and / or the third circumferential slot line is each assigned a further approximately linear slot line, which is in each case arranged at a distance between the respective ends of the respective circumferential slot line, the stated distance between the respective ends the respective circumferential slot line and the respective rectilinear slot line each correspond to the width of the remaining narrow material webs.
  • the connection between the swivel area and the peripheral area remaining in the plane of the base plate is only provided by the narrow material webs in the case of load.
  • these are designed so that they can absorb the tensile forces that occur.
  • the material thickness of the footplate plays a role here, which is preferably in the range from about 1 to 8 mm, for example in the range from about 3 to 5 mm.
  • the first and / or the second and / or the third and / or the fourth circumferential slot line have approximately the outline shape of the Greek letter Omega.
  • the outline shape of the first and / or the second and / or the third and / or the fourth circumferential slot line is defined by a sequence of straight-line sections, which are each arranged at an angle to one another, in accordance with the rules of the Mohr circuit.
  • This outline shape has proven to be particularly advantageous based on tests.
  • the aforementioned outline shape similar to an omega thus does not consist of a curve line in this case, but of a plurality of straight-line sections which are at an angle to one another, but this shape is approximated overall of the outline shape of an omega.
  • the introduction of the circumferential slot lines and the straight slot lines into the base plate can preferably be carried out by means of a laser beam or high-pressure water jet.
  • This method makes it possible to produce a very precise outline shape of the slot line with a very small slot width, and it is also possible to cut through a sheet of the base plate which is several mm thick without any problems.
  • the slot width can be, for example, only a fraction of a millimeter, although the slot must not be too narrow, so that the pivoting range can be swiveled up easily in the event of a load and there is no jamming in the slot area.
  • the footplate of the fall protection is usually screwed or riveted to the roof structure, i.e. to the trapezoidal sheet.
  • the post or the eyelet of the fall protection in turn are preferably screwed to the footplate.
  • the post or the eyelet can have an external thread in an end region facing the roof construction, and the post or the eyelet can then be fixed to the footplate by means of a nut which can be screwed onto this external thread.
  • FIG. 1 shows a schematically simplified view of part of a fall protection device according to the invention.
  • This includes a base plate 10, for example, which is approximately rectangular, but partially rounded, in outline, which is connected to a trapezoidal sheet of the roof structure, not shown here, for example by screws.
  • the base plate has screw screws arranged in rows in the outer edge regions, for example or rivet holes 11.
  • the base plate 10 is, for example, an approximately 3 mm to 4 mm thick sheet made of stainless steel.
  • a through hole 12 in the innermost pivoting area through which a screw thread attached to the lower end of a post of the fall protection device can be inserted, so that the post on the footplate 10 can be placed on a counter nut on the underside of the footplate can screw tight.
  • Figure 1 the innermost swivel area 13 is shown in the swiveled-up position in order to illustrate the function of the fall protection.
  • This swiveled-up position is achieved when the post is subjected to a tensile force acting on its upper end in the event of a load, so that there is a leverage force which causes the post to fold into an approximately horizontal position. This is made possible by the fact that the lower end of the post is fixed on the footplate 10 in the region of the through hole 12.
  • the innermost swivel area 13 is subjected to bending and swivels up into the in Figure 1 position shown, where the post itself is not shown here for reasons of better clarity.
  • This swiveling up is possible in that the innermost swiveling region 13 is separated from the rest of the foot plate 10 by a circumferential slot line 13 a, which can be seen better in FIG. 2 and which extends over the largest part of the circumference, for example over a good 270 ° . Consequently, the innermost pivot area 13 is only over a comparatively narrow material web 13 b (see Figure 2 ) is connected to the second innermost swivel area 15.
  • the second innermost swivel area 15 is bent up, which results when the lever force is applied from a direction which is approximately 90 ° to that in FIG Figure 1 explained direction is offset.
  • the second innermost swivel area 15 is surrounded by a circumferential slot line 15 a, which one in Figure 3 can recognize.
  • the second innermost swivel area 15 is separated over a wide area from the third swivel area 16 surrounding it.
  • circumferential slot lines 18 a, 16 a, 15 a, 13 a each have a geometrically similar shape, namely in the exemplary embodiment approximately the shape of a Greek omega.
  • the three outer swiveling areas there are also straight lines of slits, which run on the circumferential side on which there is no circumferential slit line, so that ultimately there is a slit line almost all around, interrupted only by the two narrow material webs.
  • the two nested circumferential slot lines 16 a and 15 a of the second and third pivoting areas are arranged offset by 90 ° to each other and in turn offset to the outer circumferential slot line 18 a.
  • Figure 4b basically shows the same swivel position as Figure 4 a with the outer pivoting region 18 pivoted up, seen only from a different perspective, so that one can be seen in Figure 4b sees the opening in the base plate 10, which results from the swiveling up of the outer swiveling area when the post is folded in the load case.
  • Figure 5 shows a pivot position, which results when the attack of the lever force is not exactly from a direction approximately parallel to one of the longitudinal edges 14 or transverse edges 17.
  • several swivel areas are effective and you can see in Figure 5 that there is at least partial swiveling up of both the innermost swiveling area 13 and the second innermost swiveling area 15 takes place while the two outer pivot areas 16 and 18 have retained their original position in the plane of the foot plate 10.
  • FIG. 6 each in a perspective view of a foot plate 10 of the type described above, to which a post 20 20 is attached for fall protection.
  • the post 20 is vertical.
  • eyelet 19 At the upper end of the post 20 there is an eyelet 19 so that, for example, a wire rope for the fall protection can be attached there.
  • the lower end of the post is fixed to the base plate 10, for example screwed on.
  • the Figure 6 a can be hinted at that the post 20 passes through a central hole in the footplate 10 and is attached to the bottom of the footplate, for example by means of a nut.
  • Figure 6 a shows the state after the load case occurs and it can be seen that the post 20 has been moved into a horizontal position, which is possible because the corresponding pivoting range pivots upward with the lower end of the post due to the tensile force. If the post is in the horizontal position according to Figure 6a , no more moment is exerted on the base plate 10, so that the base plate or the trapezoidal sheet to which it is attached cannot tear out.
  • the Figures 7 and 7 a also show a perspective view of an alternative design of fall protection, which works according to the same principle of the present invention.
  • the eyelet 19 is attached directly to the footplate, so that in this case no post is required. You can attach the fall protection directly to the eyelet.
  • the eyelet itself can be fixed to the base plate 10, for example, by means of a threaded section on the underside and a nut by screwing or suitable fastening means.
  • the mode of operation is therefore also the same in this variant as in the previously described exemplary embodiment according to Figure 6 , wherein in the specific example the third swivel range 15 swivels upwards from the outside.
  • the question of which swivel range is effective depends on the respective direction from which the torque attack is taking place.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Tents Or Canopies (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Emergency Lowering Means (AREA)
  • Supports For Pipes And Cables (AREA)

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zur Sicherung von Personen gegen Absturz, insbesondere von einem Dach, umfassend eine an einem Untergrund befestigbare Fußplatte mit einem an der Fußplatte anbringbaren Anschlagpunkt umfassend entweder einen von dieser Fußplatte nach oben ragenden Pfosten mit einer im oberen Endbereich des Pfostens angeordneten Öse oder eine direkt an der Fußplatte anbringbare Öse, jeweils zur Anbringung eines Seiles oder durch die direkte Anbindung an ein Seilsystem, durch welches die Person gegen Absturz gesichert wird, wobei ein zentrischer Bereich der Fußplatte, in dem der Pfosten oder die Öse mit der Fußplatte verbunden sind, ringsum den Pfosten oder die Öse herum entlang mindestens einer ersten definierten Umfangsschlitzlinie, die sich über mindestens 270° in Umfangsrichtung erstreckt, geschlitzt ist, so dass der zentrische Bereich nur noch über schmale Materialstege mit dem übrigen peripheren Bereich der Fußplatte verbunden ist.The present invention relates to a device for securing people against falling, in particular from a roof, comprising a footplate which can be fastened to a subsurface with an attachment point which can be attached to the footplate, comprising either a post projecting upward from this footplate and one arranged in the upper end region of the post Eyelet or an eyelet that can be attached directly to the footplate, in each case for attaching a rope or through the direct connection to a rope system by which the person is secured against falling, with a central area of the footplate in which the post or eyelet with the footplate are connected, around the post or the eyelet along at least one first defined circumferential slot line, which extends over at least 270 ° in the circumferential direction, so that the central region is only connected to the remaining peripheral region of the footplate via narrow material webs.

Absturzsicherungen der vorgenannten Art sind aus dem Stand der Technik seit längerem bekannt und werden insbesondere zur Sicherung von Personen verwendet, die auf Flachdächern arbeiten. Grundlegende Anforderungen an eine solche Absturzsicherung, insbesondere bezüglich deren Belastbarkeit, sind in der DIN EN 795 festgelegt, auf deren Inhalt hiermit Bezug genommen wird.Fall protection devices of the aforementioned type have long been known from the prior art and are used in particular to secure people who work on flat roofs. Basic requirements for such a fall protection, in particular with regard to its resilience, are specified in DIN EN 795, the content of which is hereby referred to.

Eine Absturzsicherung mit einer Fußplatte und einem nach oben ragenden Pfosten wird beispielsweise auch in der DE 10 2006 041 592 A1 beschrieben. Der nach oben ragende Pfosten, der auf der Fußplatte steht, ist bei dieser und ähnlichen aus dem Stand der Technik bekannten Vorrichtungen beispielsweise ein Stahlrohr mit einer Öse am oberen Ende. Absturzsicherungen dieser Art müssen für zwei Lastfälle ausgelegt sein. Der eine Lastfall ist die Sicherung des Pfostens gegen Stoß, wenn eine auf dem Dach arbeitende Person versehentlich gegen den Pfosten stößt. In der Regel darf hier bei einer seitlich einwirkenden Stoßkraft von 70 kg ein festgelegter Verformungswert von beispielsweise 10 mm nicht überschritten werden. Hiervon zu unterscheiden ist der zweite eigentliche Lastfall der Absturzsicherung, wonach die Vorrichtung einer Querkraft von 1,2 t standhalten muss, damit die bei Absturz einer Person vom Dach über das an der Öse befestigte Seil auftretende Zugbelastung aufgefangen wird.A fall protection with a footplate and an upstanding post is also used in the DE 10 2006 041 592 A1 described. In this and similar devices known from the prior art, the upstanding post which stands on the base plate is, for example, a steel tube with an eyelet at the upper end. Fall arrest systems of this type must be designed for two load cases. One load case is the securing of the post against impact if a person working on the roof accidentally hits the post. As a rule, with a lateral impact force of 70 kg, a defined deformation value of 10 mm, for example, must not be exceeded. To be distinguished from this is the second actual load case of fall protection, according to which the device must withstand a transverse force of 1.2 t so that the tensile load that occurs when a person falls from the roof is absorbed by the rope attached to the eyelet.

Verwendet man einen Pfosten auf der Fußplatte wie bei der bekannten Vorrichtung, wirkt über die am oberen Ende des Pfostens befindliche Öse die Zugkraft auf den Pfosten in Querrichtung, wodurch ein Moment entsteht, so dass sich quasi eine Hebelwirkung ergibt, die im Bereich der Fußplatte deren Ausreißen aus der Verankerung an der Dachunterkonstruktion bewirkt.If you use a post on the base plate as in the known device, the tensile force acts on the post in the transverse direction via the eyelet located at the upper end of the post, which creates a moment, so that there is virtually a leverage effect in the area of the base plate Tear out of the anchoring on the roof substructure.

In der DE 20 2012 102 476 U1 wird eine Vorrichtung zur Sicherung von Personen gegen Absturz vorgeschlagen, welche besser für die im zweiten oben genannten Lastfall auftreten den Belastungen ausgelegt ist. Dazu ist bei dieser bekannten Vorrichtung die Verbindung zwischen Pfosten und Fußplatte als sich im Absturzfall lösende Sollbruchverbindung ausgebildet, wobei im Inneren des Pfostens eine Metallseilverbindung vorgesehen ist, durch die eine zugfeste Verbindung von der Öse in einen Verankerungsbereich der Vorrichtung gebildet ist. Durch diese bekannte Lösung kann der erste Lastfall ohne weiteres abgedeckt wer den, da der Pfosten so ausgelegt werden kann, dass er sich bei einem Stoß von beispielsweise bis zu 70 kg nicht mehr als in den Anforderungen vorgesehen verbiegt. In dem zweiten genannten Lastfall wird der Pfosten aus Kunststoff quasi geopfert.In the DE 20 2012 102 476 U1 proposes a device for securing people against falling, which is better designed for the loads occurring in the second load case mentioned above. For this purpose, in this known device, the connection between the post and the base plate is designed as a predetermined breaking connection which is released in the event of a fall, a metal cable connection being provided in the interior of the post, by means of which a tensile connection is formed from the eyelet into an anchoring area of the device. With this known solution, the first load case can be covered without further ado, since the post can be designed so that it does not bend more than intended in the requirements in the event of an impact of up to 70 kg, for example. In the second load case mentioned, the plastic post is quasi sacrificed.

Wenn die oben genannten Fußplatten, an denen der Anschlagpunkt für die Absturzsicherung befestigt wird, auf Flachdächern mit Trapezblechen angebracht werden, ergibt sich ein besonderes Problem. Die Dachkonstruktion besteht in diesen Fällen lediglich aus zwei Trapezblechen, zwischen denen eine Dämmschicht liegt, wobei das obere Trapezblech nur durch Klebeverbindung mit der Dämmschicht verbunden wird. Wenn man nun eine Fußplatte auf dem oberen Trapezblech anschraubt und im Falle eines Absturzes ein Drehmoment über den Pfosten in die Fußplatte eingeleitet wird, entsteht eine Schälkraft und das lediglich durch Klebung gehaltene Trapezblech wird mit der Fußplatte abreißen. Aus diesem Grunde sind die üblichen Absturzsicherungen für derartige Flachdachkonstruktionen mit geklebten Trapezblechen nicht zugelassen.If the above-mentioned foot plates, to which the anchor point for the fall protection is attached, are attached to flat roofs with trapezoidal sheets, a particular problem arises. In these cases, the roof structure only consists of two trapezoidal sheets, between which there is an insulating layer, the upper trapezoidal sheet being connected to the insulating layer only by an adhesive connection. If you now screw a footplate onto the upper trapezoidal sheet and in the event of a fall, a torque is introduced into the footplate via the post, a peeling force arises and the trapezoidal sheet, which is only held in place by adhesive, will tear off with the footplate. For this reason, the usual fall protection systems for such flat roof constructions with glued trapezoidal sheets are not permitted.

Aus dem Stand der Technik sind diverse Absturzsicherungen bekannt geworden, bei denen man versucht, im Absturzfall einen Teil der auf die Absturzsicherung einwirkenden Zugkräfte in Verformungsarbeit umzuwandeln und dadurch den Absturz quasi abzubremsen. Dies ist beispielsweise bei den in der EP 2447445 A1 , der CH 704527 A1 und der WO 2009/008706 A2 beschriebenen Einrichtungen der Fall. Insbesondere bei der Lösung gemäß der zuletzt genannten Schrift wird die Strecke einer Sollbruchlinie, entlang derer ein Abriss eines plattenförmigen Bereichs bis zu dem Befestigungspunkt hin erfolgt, erheblich verlängert. Die Sollbruchlinie verläuft hier spiralförmig.Various fall protection devices have become known from the prior art, in which an attempt is made in the event of a fall to convert part of the tensile forces acting on the fall protection device into deformation work and thereby virtually slowing down the fall. This is, for example, the case in the EP 2447445 A1 , the CH 704527 A1 and the WO 2009/008706 A2 described facilities the case. In particular in the solution according to the last-mentioned document, the distance of a predetermined breaking line, along which a plate-shaped area is torn off as far as the fastening point, is considerably lengthened. The predetermined breaking line is spiral here.

In der DE 10 2006 041 592 A1 wird eine Absturzsicherung beschrieben, bei der ein von einer Fußplatte aufragender Stab vorgesehen ist, wobei die Fußplatte auf einem Trapezblech der Dachkonstruktion befestigt ist. Wenn der Absturzfall eintritt, wird durch die Fußplatte der von dem Stab gebildete Hebelarm verlängert, so dass ein erhöhtes Drehmoment auftritt. Dies führt dazu, dass höhere Kräfte auf die Dachkonstruktion einwirken und sich beim Absturz das Trapezblech der Dachkonstrution in einem weiten Bereich erheblich verformt, so dass danach die Dachkonstruktion umfangreich erneuert werden muss.In the DE 10 2006 041 592 A1 describes a fall protection device in which a rod protruding from a base plate is provided, the base plate being fastened to a trapezoidal sheet metal of the roof structure. When the fall occurs, the footplate extends the lever arm formed by the rod so that an increased torque occurs. This leads to higher forces acting on the roof structure and the trapezoidal sheet metal of the roof structure becoming involved in the event of a crash considerably deformed in a wide area, so that the roof construction then had to be extensively renewed.

Die Aufgabe der vorliegenden Erfindung besteht somit darin, eine Vorrichtung zur Sicherung von Personen gegen Absturz mit den Merkmalen der eingangs genannten Gattung zu schaffen, bei der der Hebelarm im Absturzfall verkürzt, das Drehmoment minimiert und so die Zerstörungen an der Dachkonstruktion vermieden oder zumindest erheblich verringert werden.The object of the present invention is therefore to provide a device for securing people against falling with the features of the type mentioned in the introduction, in which the lever arm shortens in the event of a fall, the torque is minimized and the damage to the roof structure is avoided or at least considerably reduced become.

Die Lösung dieser Aufgabe liefert eine Vorrichtung zur Sicherung von Personen gegen Absturz mit den Merkmalen des Anspruchs 1.The solution to this problem is provided by a device for securing people against falling with the features of claim 1.

Erfindungsgemäß ist vorgesehen, dass zusätzlich zu der sich über etwa 270° in Umfangsrichtung erstreckenden ersten Umfangsschlitzlinie eine weitere etwa geradlinige Schlitzlinie jeweils mit Abstand zwischen den jeweiligen Enden der ersten Umfangsschlitzlinie angeordnet ist, wobei der genannte Abstand zwischen der ersten Umfangsschlitzlinie und der weiteren geradlinigen Schlitzlinie der Breite der schmalen Materialstege entspricht.According to the invention, it is provided that in addition to the first circumferential slot line extending over approximately 270 ° in the circumferential direction, a further approximately rectilinear slot line is arranged at a distance between the respective ends of the first circumferential slot line, said distance between the first circumferential slot line and the further rectilinear slot line Corresponds to the width of the narrow material webs.

In dem zweiten genannten Lastfall, in dem es auf die eigentliche Sicherungsfunktion gegen Absturz ankommt, entsteht eine Art Gelenk entlang der zwischen den Schlitzen stehengebliebenen Stege des Blechs der Fußplatte, und der innerhalb der Umfangsschlitzlinie liegende zentrische Bereich schwenkt aufgrund der über den Pfosten oder die Öse einwirkenden Hebelkraft mit dem an diesem Bereich befestigten Pfosten mit aus der Ebene der Fußplatte heraus nach oben. Der Pfosten kann sich so flachlegen und es wirkt nun kein Moment mehr auf den peripheren Bereich der Fußplatte ein. Die Fußplatte wird somit nicht beansprucht, sondern verbleibt in ihrer Position, so dass sich auch das mit der Fußplatte verbundene Trapezblech nicht löst. Der mit dem Pfosten aus der Ebene heraus schwenkende zentrische Bereich der Fußplatte wird hierin daher auch als Schwenkbereich bezeichnet. Da kein Moment mehr auf die Fußplatte übertragen wird, wird diese nicht mehr von dem Pfosten ausgehebelt, wie bei früheren Lösungen. Vielmehr wirkt ausschließlich die durch den Absturz verursachte Zugkraft über die Seilverbindung in horizontaler Richtung auf die stehen gebliebenen peripheren Bereiche der Fußplatte bzw. deren Verankerung am Untergrund/an der Dachkonstruktion ein. Diese sind für die Zugkraft gemäß den Anforderungen ausgelegt (in der Regel 1,2 t Querkraft) und können nicht abreißen.In the second load case mentioned, in which the actual safety function against falling is important, a kind of joint is created along the webs of the plate of the footplate that have remained between the slots, and the central area lying within the circumferential slot line swivels due to that over the post or the eyelet acting lever force with the post attached to this area with from the level of the footplate upwards. The post can lay flat and there is no longer any moment acting on the peripheral area of the footplate. The footplate is therefore not stressed, but remains in its position, so that the trapezoidal sheet connected to the footplate does not come loose. The central region of the footplate which pivots out of the plane with the post is therefore also referred to herein as the pivoting region. Since no more moment is transferred to the footplate, this is no longer levered off the post, as in previous solutions. Rather, only the tensile force caused by the fall acts on the rope connection in the horizontal direction on the peripheral areas of the footplate that have remained or are anchored to the ground / to the roof structure. These are designed for the pulling force according to the requirements (usually 1.2 t lateral force) and cannot tear off.

Im Vergleich zu dem oben genannten Stand der Technik beruht die erfindungsgemäße Lösung darauf, dass das Umlegen des Pfostens nahe an der Dachoberfläche erfolgt, so dass vermieden wird, dass sich der Hebelarm, den der Pfosten bildet, durch Teile der Fußplatte verlängert, wodurch das Drehmoment erhöht würde. Der Pfosten reißt bereits an seinem Fuß aus, durch die dort vorgegebene Sollbruchstelle.In comparison to the above-mentioned prior art, the solution according to the invention is based ensure that the post is folded close to the roof surface so that the lever arm that the post forms is not extended by parts of the footplate, which would increase the torque. The post already tears out at its foot, through the predetermined breaking point specified there.

Durch die geradlinige weitere Schlitzlinie wird der Bereich des stehen bleibenden Materials verschmälert und ein Gelenk geschaffen, so dass das Kippen des Pfostens um den gewünschten Drehpunkt dieses Gelenks erleichtert wird. Durch die erfindungsgemäße Maßnahme wird der Hebelarm verkürzt und die Beschädigung der Dachkonstruktion im Absturzfall wird verhindert.The linear, further slit line narrows the area of the remaining material and creates a joint, so that the tilting of the post around the desired pivot point of this joint is facilitated. The measure according to the invention shortens the lever arm and prevents damage to the roof structure in the event of a fall.

Gemäß einer bevorzugten Weiterbildung der erfindungsgemäßen Aufgabenlösung ist vorgesehen, dass mit radialem Abstand innerhalb der ersten definierten Umfangsschlitzlinie mindestens eine zweite im Durchmesser kleinere Umfangsschlitzlinie liegt, deren Verlaufsform zu der ersten Umfangsschlitzlinie geometrisch ähnlich ist, wobei jedoch die zweite Umfangsschlitzlinie in der Draufsicht gesehen um etwa 90° oder etwa 180° zu der ersten Umfangsschlitzlinie versetzt angeordnet ist.According to a preferred development of the task solution according to the invention, it is provided that at least a second circumferential slot line with a smaller diameter is located at a radial distance within the first defined circumferential slot line, the shape of which is geometrically similar to the first circumferential slot line, but the second circumferential slot line seen in plan view by about 90 ° or about 180 ° to the first circumferential slot line is arranged offset.

Vorzugsweise liegt mit radialem Abstand innerhalb der zweiten definierten Umfangsschlitzlinie mindestens eine dritte im Durchmesser kleinere Umfangsschlitzlinie, deren Verlaufsform zu der ersten Umfangsschlitzlinie geometrisch ähnlich ist, wobei jedoch die dritte Umfangsschlitzlinie in der Draufsicht gesehen jeweils um etwa 90° oder etwa 180° zu der ersten Umfangsschlitzlinie und/oder zu der zweiten Umfangsschlitzlinie versetzt angeordnet ist.Preferably, at least a third circumferential slot line with a smaller diameter is located at a radial distance within the second defined circumferential slot line, the shape of which is geometrically similar to the first circumferential slot line, but the third circumferential slot line seen in plan view in each case by approximately 90 ° or approximately 180 ° to the first circumferential slot line and / or is arranged offset to the second circumferential slot line.

Vorzugsweise liegt mit radialem Abstand innerhalb der dritten definierten Umfangsschlitzlinie mindestens eine vierte im Durchmesser kleinere Umfangsschlitzlinie, deren Verlaufsform zu der dritten Umfangsschlitzlinie geometrisch ähnlich ist, wobei jedoch die vierte Umfangsschlitzlinie in der Draufsicht gesehen jeweils um etwa 90° oder etwa 180° zu der ersten Umfangsschlitzlinie und/oder zu der zweiten Umfangsschlitzlinie und/oder zu der dritten Umfangsschlitzlinie versetzt angeordnet ist. Bei dieser bevorzugten Variante ist es somit so, dass insgesamt vier Umfangsschlitzlinien vorhanden sind und somit vier jeweils zentrische Bereiche, die über die Umfangsschlitzlinie von dem sie jeweils umgebenden peripheren Bereich der Fußplatte getrennt sind. Alle vier Umfangsschlitzlinien liegen jeweils ineinander und sind bevorzugt jeweils geometrisch ähnlich. Dadurch, dass diese Umfangsschlitzlinien jeweils um 90° oder auch um 180° zueinander versetzt sind, ist für jede beliebige Richtung, in der die Kraft bei einem Absturz angreift, jeweils ein Schwenkbereich vorhanden, der mit dem sich umlegenden Pfosten hochschwenkt und somit den übrigen peripheren Bereich der Fußplatte entlastet.Preferably, at least a fourth circumferential slot line with a smaller diameter is located at a radial distance within the third defined circumferential slot line, the shape of which is geometrically similar to the third circumferential slot line, but the fourth circumferential slot line seen in plan view in each case by approximately 90 ° or approximately 180 ° to the first circumferential slot line and / or is arranged offset to the second circumferential slot line and / or to the third circumferential slot line. In this preferred variant it is thus the case that there are a total of four circumferential slot lines and thus four central areas, which are separated via the circumferential slot line from the peripheral area of the footplate surrounding them. All four circumferential slot lines are located one inside the other and are preferably geometrically similar. Due to the fact that these circumferential slot lines are offset from one another by 90 ° or also by 180 °, there is a swiveling range for any direction in which the force acts in the event of a fall, which swivels up with the folding post and thus the other peripheral Relieved area of the footplate.

Dabei ist es unerheblich, dass die Flächen der jeweiligen Schwenkbereiche, da sie ja ineinander liegen, unterschiedlich groß sind. Die stehen bleibenden Stege der Fußplatte zwischen den Schlitzen können für alle vier Schwenkbereiche trotz der unterschiedlich langen Umfangsschlitzlinien jeweils etwa gleich lang sein, so dass es unerheblich ist, aus welcher Richtung der Kraftangriff erfolgt, denn die Verbindung zwischen dem im Falle eines Absturzes hochschwenkenden Schwenkbereich und dem in der horizontalen Ebene des Flachdachs verbleibenden peripheren Bereich der Fußplatte ist damit jeweils gleich stark und somit auch jeweils in gleichem Maße belastbar. Erfolgt der Kraftangriff bei um 90° zueinander versetzen Schwenkbereichen aus einer diagonalen Richtung, also nicht etwa parallel zu einer der Außenkanten des Fußplatte, werden gegebenenfalls zwei der Schwenkbereiche gleichzeitig wirksam, so dass auch hier der entsprechende Entlastungseffekt erzielt wird.It is irrelevant that the areas of the respective swivel areas are of different sizes, since they are located one inside the other. The remaining webs of the footplate between the slots can be approximately the same length for all four swivel areas despite the differently long circumferential slot lines, so that it is irrelevant from which direction the force is applied, because the connection between the swivel area swiveling up in the event of a crash and the peripheral region of the footplate remaining in the horizontal plane of the flat roof is therefore of the same strength and can therefore also be loaded to the same extent. If the force is applied with pivoting areas offset by 90 ° to one another from a diagonal direction, that is to say not parallel to one of the outer edges of the footplate, two of the pivoting areas may become effective simultaneously, so that the corresponding relief effect is also achieved here.

Die Fußplatte selbst wird bevorzugt in an sich bekannter Weise durch mindestens eine Schraubverbindung oder Nietverbindung am Untergrund festgelegt. Wenn der zweite Lastfall (Absturzfall) eintritt, wird die Zugkraft über das Sicherungsseil und die Metallseilverbindung direkt in die Verbindungen der Fußplatte eingeleitet. Die Metallseilverbindung kann beispielsweise ein Edelstahlseil umfassen. Dieses ist korrosionsbeständig und kann bei einem Durchmesser von beispielsweise 6 mm die geforderte Zugkraft von mehr als einer Tonne problemlos aufnehmen.The base plate itself is preferably fixed in a manner known per se to the base by at least one screw connection or rivet connection. When the second load case (fall) occurs, the tensile force is introduced directly into the connections of the footplate via the safety rope and the metal rope connection. The metal cable connection can comprise, for example, a stainless steel cable. This is corrosion-resistant and with a diameter of 6 mm, for example, can easily withstand the required tensile force of more than one ton.

Eine bevorzugte Weiterbildung der vorliegenden Erfindung sieht vor, dass der zweiten Umfangsschlitzlinie und/oder der dritten Umfangsschlitzlinie jeweils eine weitere etwa geradlinige Schlitzlinie zugeordnet ist, welche jeweils mit Abstand zwischen den jeweiligen Enden der jeweiligen Umfangsschlitzlinie angeordnet ist, wobei der genannte Abstand zwischen den jeweiligen Enden der jeweiligen Umfangsschlitzlinie und der jeweiligen geradlinigen Schlitzlinie jeweils der Breite der stehenbleibenden schmalen Materialstege entspricht. Somit ist hier eine Trennung im Bereich der Umfangsschlitzlinie und im Bereich der geradlinigen Schlitzlinie gegeben, so dass die Verbindung zwischen dem Schwenkbereich und dem peripheren in der Ebene der Fußplatte verbleibenden Bereich im Lastfall nur noch durch die schmalen Materialstege gegeben ist. Diese sind jedoch so ausgeführt, dass sie die auftretenden Zugkräfte aufnehmen können.A preferred development of the present invention provides that the second circumferential slot line and / or the third circumferential slot line is each assigned a further approximately linear slot line, which is in each case arranged at a distance between the respective ends of the respective circumferential slot line, the stated distance between the respective ends the respective circumferential slot line and the respective rectilinear slot line each correspond to the width of the remaining narrow material webs. Thus there is a separation in the area of the circumferential slot line and in the area of the straight slot line, so that the connection between the swivel area and the peripheral area remaining in the plane of the base plate is only provided by the narrow material webs in the case of load. However, these are designed so that they can absorb the tensile forces that occur.

Dabei spielt natürlich die Materialstärke der Fußplatte eine Rolle, die vorzugsweise im Bereich von etwa 1 bis 8 mm, beispielsweise im Bereich von etwa 3 bis 5 mm liegt.Of course, the material thickness of the footplate plays a role here, which is preferably in the range from about 1 to 8 mm, for example in the range from about 3 to 5 mm.

Gemäß einer bevorzugten Weiterbildung der vorliegenden Erfindung weisen die erste und/oder die zweite und/oder die dritte und/oder die vierte Umfangsschlitzlinie etwa die Umrissform des griechischen Buchstabens Omega auf.According to a preferred development of the present invention, the first and / or the second and / or the third and / or the fourth circumferential slot line have approximately the outline shape of the Greek letter Omega.

Weiterhin ist es bevorzugt so, dass die Umrissform der ersten und/oder der zweiten und/oder der dritten und/oder der vierten Umfangsschlitzlinie durch eine Abfolge aneinandergereihter, jeweils im Winkel zueinanderstehender, geradliniger Teilabschnitte gemäß den Regeln des Mohrschen Spannungskreises definiert ist. Diese Umrissform hat sich anhand von Versuchen als besonders vorteilhaft erwiesen. Die vorgenannte Umrissform ähnlich einem Omega besteht somit in diesem Fall nicht aus einer Kurvenlinie, sondern aus einer Mehrzahl von geradlinigen, im Winkel zueinanderstehenden Abschnitten, wobei diese Form aber insgesamt der Umrissform eines Omega angenähert ist.Furthermore, it is preferred that the outline shape of the first and / or the second and / or the third and / or the fourth circumferential slot line is defined by a sequence of straight-line sections, which are each arranged at an angle to one another, in accordance with the rules of the Mohr circuit. This outline shape has proven to be particularly advantageous based on tests. The aforementioned outline shape similar to an omega thus does not consist of a curve line in this case, but of a plurality of straight-line sections which are at an angle to one another, but this shape is approximated overall of the outline shape of an omega.

Das Einbringen der Umfangsschlitzlinien und der geradlinigen Schlitzlinien in die Fußplatte kann im Rahmen der vorliegenden Erfindung vorzugsweise mittels Laserstrahl oder Hochdruckwasserstrahl erfolgen. Diese Methode ermöglicht die Herstellung einer sehr präzisen Umrissform der Schlitzlinie mit sehr geringer Schlitzbreite, wobei auch das Durchtrennen eines mehrere mm starken Blechs der Fußplatte ohne Probleme möglich ist. Die Schlitzbreite kann beispielsweise nur Bruchteile eines Millimeters betragen, wobei allerdings der Schlitz nicht zu schmal sein darf, so dass das Hochschwenken des Schwenkbereichs im Lastfall problemlos möglich ist und es nicht zu einem Verklemmen im Schlitzbereich kommt.In the context of the present invention, the introduction of the circumferential slot lines and the straight slot lines into the base plate can preferably be carried out by means of a laser beam or high-pressure water jet. This method makes it possible to produce a very precise outline shape of the slot line with a very small slot width, and it is also possible to cut through a sheet of the base plate which is several mm thick without any problems. The slot width can be, for example, only a fraction of a millimeter, although the slot must not be too narrow, so that the pivoting range can be swiveled up easily in the event of a load and there is no jamming in the slot area.

Die Fußplatte der Absturzsicherung wird in der Regel mit der Dachkonstruktion, das heißt mit dem Trapezblech verschraubt oder vernietet. Der Pfosten oder die Öse der Absturzsicherung wiederum werden vorzugsweise mit der Fußplatte verschraubt. Dazu kann beispielsweise der Pfosten oder die Öse in einem der Dachkonstruktion zugewandten Endbereich ein Außengewinde aufweisen und der Pfosten oder die Öse ist dann mittels einer auf dieses Außengewinde aufschraubbaren Mutter an der Fußplatte festlegbar.The footplate of the fall protection is usually screwed or riveted to the roof structure, i.e. to the trapezoidal sheet. The post or the eyelet of the fall protection in turn are preferably screwed to the footplate. For this purpose, for example, the post or the eyelet can have an external thread in an end region facing the roof construction, and the post or the eyelet can then be fixed to the footplate by means of a nut which can be screwed onto this external thread.

Die in den Unteransprüchen genannten Merkmale betreffen bevorzugte Weiterbildungen der erfindungsgemäßen Aufgabenlösung. Weitere Vorteile der Erfindung ergeben sich aus der nachfolgenden Detailbeschreibung.The features mentioned in the subclaims relate to preferred developments of the task solution according to the invention. Further advantages of the invention result from the following detailed description.

Nachfolgend wird die vorliegende Erfindung anhand von Ausführungsbeispielen unter Bezugnahme auf die beiliegenden Zeichnungen näher beschrieben.The present invention is described in more detail below on the basis of exemplary embodiments with reference to the accompanying drawings.

Dabei zeigen:

  • Figur 1 eine perspektivische Ansicht von oben einer beispielhaften Fußplatte für eine erfindungsgemäße Absturzsicherung, wobei der innerste Schwenkbereich hochgebogen ist;
  • Figur 2 eine ähnliche Ansicht einer Fußplatte aus einer anderen Perspektive gesehen, wobei hier der zweitinnerste Schwenkbereich aufgebogen ist;
  • Figur 3 eine ähnliche Ansicht einer Fußplatte aus der gleichen Perspektive wie in Figur 2 gesehen, wobei hier jedoch der dritte Schwenkbereich aufgebogen ist;
  • Figur 4 a eine ähnliche Ansicht einer Fußplatte aus der gleichen Perspektive gesehen wie in Figur 3, wobei hier jedoch der äußerste Schwenkbereich aufgebogen ist;
  • Figur 4b eine weitere Ansicht der Fußplatte von der anderen Seite her gesehen als in Figur 4a, wobei auch hier der äußerste Schwenkbereich aufgebogen ist;
  • Figur 5 eine weitere Ansicht einer Fußplatte aus einer anderen Perspektive gesehen, wobei hier zwei innere Schwenkbereiche gleichzeitig aufgebogen sind.;
  • Figur 6 eine Ansicht eines an der Fußplatte befestigten Pfostens im aufrechten Zustand;
  • Figur 6 a eine entsprechende Ansicht des Pfostens im umgelegten Zustand nach dem Eintritt des Lastfalls;
  • Figur 7 eine alternative Variante, bei der eine Öse direkt an der Fußplatte befestigt ist;
  • Figur 7 a eine entsprechende Ansicht der Variante von Figur 7, wobei nach Eintritt des Lastfalls die Öse mit dem Schwenkbereich der Fußplatte in die horizontale Position geschwenkt ist.
Show:
  • Figure 1 a perspective view from above of an exemplary footplate for a fall protection according to the invention, the innermost pivoting area being bent up;
  • Figure 2 a similar view of a footplate seen from a different perspective, the second innermost swivel range being bent up here;
  • Figure 3 a similar view of a base plate from the same perspective as in Figure 2 seen, but here the third swivel range is bent;
  • Figure 4 a a similar view of a footplate seen from the same perspective as in Figure 3 , but here the outermost swivel range is bent;
  • Figure 4b another view of the footplate from the other side than in Figure 4a , with the outermost swivel range being bent open;
  • Figure 5 a further view of a footplate seen from a different perspective, two inner swivel areas being bent up at the same time .;
  • Figure 6 a view of a post attached to the footplate in the upright state;
  • Figure 6 a a corresponding view of the post in the folded state after the occurrence of the load case;
  • Figure 7 an alternative variant in which an eyelet is attached directly to the footplate;
  • Figure 7 a a corresponding view of the variant of Figure 7 , wherein after the load case occurs, the eyelet is pivoted into the horizontal position with the pivoting range of the footplate.

Nachfolgend wird zunächst auf Figur 1 Bezug genommen. Diese zeigt eine schematisch vereinfachte Ansicht eines Teils einer erfindungsgemäßen Absturzsicherung. Diese umfasst eine im Umriss beispielsweise in etwa rechteckige, jedoch teilweise abgerundete, Fußplatte 10, die mit einem hier nicht dargestellten Trapezblech der Dachkonstruktion beispielsweise durch Schrauben verbunden wird. Dazu weist die Fußplatte beispielsweise in äußeren Randbereichen in Reihen angeordnete Schraub- oder Nietlöcher 11 auf. Auf diese Weise wird eine solche Fußplatte 10 der Absturzsicherung auf einem Trapezblech aufliegend fest mit diesem verbunden. Bei der Fußplatte 10 handelt es sich beispielsweise um ein etwa 3 mm bis 4 mm dickes Blech aus Edelstahl. In der Mitte der Fußplatte 10 befindet sich in dem innersten Schwenkbereich ein Durchgangsloch 12, durch das man ein am unteren Ende eines Pfostens der Absturzsicherung angebrachtes Schraubgewinde hindurch stecken kann, so dass man über eine Kontermutter auf der Unterseite der Fußplatte den Pfosten an der Fußplatte 10 festschrauben kann.Below is first on Figure 1 Referred. This shows a schematically simplified view of part of a fall protection device according to the invention. This includes a base plate 10, for example, which is approximately rectangular, but partially rounded, in outline, which is connected to a trapezoidal sheet of the roof structure, not shown here, for example by screws. For this purpose, the base plate has screw screws arranged in rows in the outer edge regions, for example or rivet holes 11. In this way, such a footplate 10 of the fall arrest device is firmly connected to a trapezoidal sheet. The base plate 10 is, for example, an approximately 3 mm to 4 mm thick sheet made of stainless steel. In the middle of the footplate 10 there is a through hole 12 in the innermost pivoting area, through which a screw thread attached to the lower end of a post of the fall protection device can be inserted, so that the post on the footplate 10 can be placed on a counter nut on the underside of the footplate can screw tight.

In Figur 1 ist der innerste Schwenkbereich 13 in hochgeschwenkter Position dargestellt, um die Funktion der Absturzsicherung zu verdeutlichen. Diese hochgeschwenkte Position wird erreicht, wenn im Lastfall der Pfosten über eine auf sein oberes Ende einwirkende Zugkraft beansprucht wird, so dass sich eine Hebelkraft ergibt, die dazu führt, dass der Pfosten sich in eine annähernd horizontale Lage umlegt. Dies wird dadurch ermöglicht, dass das untere Ende des Pfostens im Bereich des Durchgangslochs 12 an der Fußplatte 10 festgelegt ist. Wenn nun die Hebelkraft aus einer bestimmten Richtung einwirkt, in der Darstellung gemäß Figur 1 parallel zu den Längskanten 14 der Fußplatte, dann wird der innerste Schwenkbereich 13 auf Biegung belastet und schwenkt hoch in die in Figur 1 dargestellte Position, wo bei der Pfosten selbst aus Gründen der besseren Übersichtlichkeit hier nicht dargestellt ist. Dieses Hochschwenken ist dadurch möglich, dass der innerste Schwenkbereich 13 durch eine Umfangsschlitzlinie 13 a von dem Rest der Fußplatte 10 getrennt ist, die man besser in Figur 2 erkennen kann und die sich über den größten Teil des Umfangs, beispielsweise über gut 270°, erstreckt. Folglich ist der innerste Schwenkbereich 13 nur über einen vergleichsweise schmalen Materialsteg 13 b (siehe Figur 2) mit dem zweitinnersten Schwenkbereich 15 verbunden ist.In Figure 1 the innermost swivel area 13 is shown in the swiveled-up position in order to illustrate the function of the fall protection. This swiveled-up position is achieved when the post is subjected to a tensile force acting on its upper end in the event of a load, so that there is a leverage force which causes the post to fold into an approximately horizontal position. This is made possible by the fact that the lower end of the post is fixed on the footplate 10 in the region of the through hole 12. If the leverage now acts from a certain direction, according to the illustration Figure 1 parallel to the longitudinal edges 14 of the base plate, then the innermost swivel area 13 is subjected to bending and swivels up into the in Figure 1 position shown, where the post itself is not shown here for reasons of better clarity. This swiveling up is possible in that the innermost swiveling region 13 is separated from the rest of the foot plate 10 by a circumferential slot line 13 a, which can be seen better in FIG. 2 and which extends over the largest part of the circumference, for example over a good 270 ° . Consequently, the innermost pivot area 13 is only over a comparatively narrow material web 13 b (see Figure 2 ) is connected to the second innermost swivel area 15.

In der Darstellung gemäß Figur 2 ist der zweitinnerste Schwenkbereich 15 hochgebogen, was sich ergibt, wenn der Angriff der Hebelkraft aus einer Richtung erfolgt, die um etwa 90° zu der in Figur 1 erläuterten Richtung versetzt ist. Auch der zweitinnerste Schwenkbereich 15 ist ringsum von einer Umfangsschlitzlinie 15 a umgeben, die man in Figur 3 erkennen kann. Somit ist der zweitinnerste Schwenkbereich 15 von dem diesen umgebenden dritten Schwenkbereich 16 über weite Bereich getrennt. Anders als bei dem innersten Schwenkbereich 13 gibt es hier noch eine zusätzliche geradlinige Schlitzlinie 15 c, die im unteren Bereich zwischen den beiden Schenkeln der Omega-Form der Umfangsschlitzlinie 15 a verläuft, dort wo sich diese beiden Schenkel am nächsten kommen, wobei jedoch an beiden Seiten zwischen der geradlinigen Schlitzlinie 15 c und der Umfangsschlitzlinie 15 a jeweils ein schmaler Materialsteg 15 b stehen bleibt. Diese beiden Materialstege bilden quasi das Gelenk, wenn sich der Pfosten umlegt und der Schwenkbereich 15 aufgebogen wird, so wie dies in Figur 2 dargestellt ist.According to the representation Figure 2 the second innermost swivel area 15 is bent up, which results when the lever force is applied from a direction which is approximately 90 ° to that in FIG Figure 1 explained direction is offset. The second innermost swivel area 15 is surrounded by a circumferential slot line 15 a, which one in Figure 3 can recognize. Thus, the second innermost swivel area 15 is separated over a wide area from the third swivel area 16 surrounding it. Unlike the innermost swivel area 13, there is an additional rectilinear slot line 15 c, which runs in the lower area between the two legs of the omega shape of the circumferential slot line 15 a, where these two legs come closest, but on both Sides between the straight slot line 15 c and the circumferential slot line 15 a each a narrow web 15 b remains. These two material webs virtually form the joint when the post folds and the swivel area 15 is bent open, as shown in FIG Figure 2 is shown.

Durch Vergleich der beiden Figuren 2 und 3 erkennt man, dass in Figur 2 der zweitinnerste Schwenkbereich 15 hochschwenkt, wenn ein Angriff der Hebelkraft um etwa 90° versetzt erfolgt, verglichen mit dem in Figur 3 dargestellten Angriff der Hebelkraft, wo die Hebelkraft etwa parallel zu den beiden Querkanten 17 der Fußplatte erfolgt.By comparing the two Figures 2 and 3rd you can see that in Figure 2 the second innermost swivel range 15 swivels when the lever force is applied offset by approximately 90 ° compared to that in FIG Figure 3 shown attack of the lever force, where the lever force takes place approximately parallel to the two transverse edges 17 of the footplate.

In Figur 4 a ist schließlich ein Hochschwenken des äußeren Schwenkbereichs 18 dargestellt, der auch bei einem Angriff der Hebelkraft etwa parallel zu den beiden Querkanten 17 der Fußplatte erfolgt, jedoch in einer verglichen mit Figur 3 entgegengesetzten (versetzt um 180°) Richtung. In der Darstellung mit hochgeschwenktem äußerem Schwenkbereich 18 gemäß Figur 4 a erkennt man auch gut, dass der dritte Schwenkbereich 16, der zweitinnerste Schwenkbereich 15 und der innerste Schwenkbereich 13 alle innerhalb des äußeren Schwenkbereichs 18 liegen, jeweils durch die Umfangsschlitzlinien voneinander getrennt. Weiterhin sieht man auch, dass alle vier Umfangsschlitzlinien 18 a, 16 a, 15 a, 13 a eine jeweils geometrisch ähnliche Form aufweisen, nämlich in dem Ausführungsbeispiel in etwa die Form eines griechischen Omega. Bei den drei äußeren Schwenkbereichen treten jeweils noch geradlinige Schlitzlinien hinzu, welche an der Umfangsseite verlaufen, an der sich keine Umfangsschlitzlinie befindet, sodass letztlich fast ringsum eine Schlitzlinie vorhanden ist, unterbrochen nur durch die beiden schmalen Materialstege. Dabei sieht man in Figur 4a, dass die beiden ineinander liegenden Umfangsschlitzlinien 16 a und 15 a des zweiten und des dritten Schwenkbereichs um 90° zueinander versetzt angeordnet sind sowie wiederum versetzt zu der äußeren Umfangsschlitzlinie 18 a. Außerdem kann man in Figur 4 a die beiden geradlinigen Schlitzlinien 16 c und 15 c dieser beiden Schwenkbereiche erkennen und man sieht auch, dass für den innersten Schwenkbereich nur eine Umfangsschlitzlinie 13 a vorhanden ist, da hier der verbleibende Materialsteg zwischen den Enden dieser Umfangsschlitzlinie bereits vergleichsweise kurz ist und als Gelenk bei der Schwenkbewegung des innersten Schwenkbereichs 13 dient.In Figure 4 Finally, a pivoting up of the outer pivoting region 18 is shown, which takes place approximately parallel to the two transverse edges 17 of the footplate even when the lever force is applied, but in one compared to Figure 3 opposite (offset by 180 °) direction. In the illustration with the outer pivoting region 18 pivoted up according to FIG Figure 4 a can also be seen well that the third swivel area 16, the second innermost swivel area 15 and the innermost swivel area 13 all lie within the outer swivel area 18, each separated by the circumferential slot lines. Furthermore, it can also be seen that all four circumferential slot lines 18 a, 16 a, 15 a, 13 a each have a geometrically similar shape, namely in the exemplary embodiment approximately the shape of a Greek omega. In the three outer swiveling areas there are also straight lines of slits, which run on the circumferential side on which there is no circumferential slit line, so that ultimately there is a slit line almost all around, interrupted only by the two narrow material webs. You can see in Figure 4a that the two nested circumferential slot lines 16 a and 15 a of the second and third pivoting areas are arranged offset by 90 ° to each other and in turn offset to the outer circumferential slot line 18 a. You can also in Figure 4 a recognize the two straight slot lines 16 c and 15 c of these two swivel areas and you can also see that for the innermost swivel area there is only one circumferential slot line 13 a, since here the remaining web of material between the ends of this circumferential slot line is already comparatively short and as a joint serves the pivoting movement of the innermost pivot region 13.

Figur 4b zeigt im Prinzip die gleiche Schwenkposition wie Figur 4 a mit hochgeschwenkter äußerem Schwenkbereich 18, lediglich aus einer anderen Perspektive gesehen, so dass man in Figur 4b die Öffnung in der Fußplatte 10 sieht, die sich durch das Hochschwenken des äußeren Schwenkbereichs bei Umlegen des Pfostens im Lastfall ergibt. Figure 4b basically shows the same swivel position as Figure 4 a with the outer pivoting region 18 pivoted up, seen only from a different perspective, so that one can be seen in Figure 4b sees the opening in the base plate 10, which results from the swiveling up of the outer swiveling area when the post is folded in the load case.

Figur 5 zeigt eine Schwenkposition, die sich ergibt, wenn der Angriff der Hebelkraft nicht genau aus einer Richtung etwa parallel zu einer der Längskanten 14 oder Querkanten 17 erfolgt. In diesem Fall werden mehrere Schwenkbereiche wirksam und man sieht in Figur 5, dass hier ein zumindest teilweises Hochschwenken sowohl des innersten Schwenkbereichs 13 als auch das zweitinnersten Schwenkbereichs 15 erfolgt, während die beiden äußeren Schwenkbereiche 16 und 18 ihre ursprüngliche Position in der Ebene der Fußplatte 10 beibehalten haben. Figure 5 shows a pivot position, which results when the attack of the lever force is not exactly from a direction approximately parallel to one of the longitudinal edges 14 or transverse edges 17. In this case, several swivel areas are effective and you can see in Figure 5 that there is at least partial swiveling up of both the innermost swiveling area 13 and the second innermost swiveling area 15 takes place while the two outer pivot areas 16 and 18 have retained their original position in the plane of the foot plate 10.

Nachfolgend wird nun auf die Figuren 6 und 6 a Bezug genommen, die jeweils in perspektivischer Ansicht eine Fußplatte 10 der zuvor beschriebenen Art zeigen, an der ein Pfosten 20 20 für die Absturzsicherung befestigt ist. Wie man sieht ist in Figur 6 der normale Gebrauchszustand dargestellt, in dem der Pfosten 20 senkrecht steht. Am oberen Ende des Pfostens 20 befindet sich eine Öse 19, so dass man dort beispielsweise ein Drahtseil der Absturzsicherung anbringen kann. Das untere Ende des Pfostens ist an der Fußplatte 10 festgelegt, beispielsweise angeschraubt. In der Figur 6 a kann man andeutungsweise erkennen, dass der Pfosten 20 ein mittiges Loch der Fußplatte 10 durchsetzt und an der Unterseite beispielsweise mittels einer Mutter an der Fußplatte befestigt ist. Figur 6 a zeigt den Zustand nach Eintritt des Lastfalls und man erkennt, dass der Pfosten 20 in eine horizontale Position umgelegt wurde, was dadurch möglich ist, dass der entsprechende Schwenkbereich durch die Zugkraft mit dem unteren Ende des Pfostens nach oben schwenkt. Liegt der Pfosten in der horizontalen Position gemäß Figur 6a, wird kein Moment mehr auf die Fußplatte 10 ausgeübt, so dass diese bzw. das Trapezblech, an dem sie befestigt ist, nicht ausreißen kann.The following will now focus on the Figures 6 and 6 a referred, each in a perspective view of a foot plate 10 of the type described above, to which a post 20 20 is attached for fall protection. As you can see is in Figure 6 the normal state of use shown, in which the post 20 is vertical. At the upper end of the post 20 there is an eyelet 19 so that, for example, a wire rope for the fall protection can be attached there. The lower end of the post is fixed to the base plate 10, for example screwed on. In the Figure 6 a can be hinted at that the post 20 passes through a central hole in the footplate 10 and is attached to the bottom of the footplate, for example by means of a nut. Figure 6 a shows the state after the load case occurs and it can be seen that the post 20 has been moved into a horizontal position, which is possible because the corresponding pivoting range pivots upward with the lower end of the post due to the tensile force. If the post is in the horizontal position according to Figure 6a , no more moment is exerted on the base plate 10, so that the base plate or the trapezoidal sheet to which it is attached cannot tear out.

Die Figuren 7 und 7 a zeigen ebenfalls in perspektivischer Darstellung eine alternative Ausbildung der Absturzsicherung, die nach dem gleichen Prinzip der vorliegenden Erfindung funktioniert. Im Unterschied zu der zuvor beschriebenen Variante ist hier jedoch die Öse 19 unmittelbar an der Fußplatte angebracht, so dass man in diesem Fall keinen Pfosten benötigt. Man kann hier die Absturzsicherung unmittelbar an der Öse befestigen. Die Öse selbst kann beispielsweise über einen unterseitigen Gewindeabschnitt und eine Mutter durch Anschrauben oder geeignete Befestigungsmittel an der Fußplatte 10 festgelegt werden. Wenn der Lastfall eintritt, entsteht zunächst ein Drehmoment, welches zu einer Schwenkbewegung des Schwenkbereichs der Fußplatte 10 führt, wobei der Schwenkbereich mit der Öse in die in Figur 7 a dargestellte Entlastungsposition schwenkt. Die Funktionsweise ist somit auch bei dieser Variante die gleiche wie in dem zuvor beschriebenen Ausführungsbeispiel gemäß Figur 6, wobei in dem konkreten Beispiel der dritte Schwenkbereich 15 von außen nach oben schwenkt. Die Frage, welcher Schwenkbereich jeweils wirksam wird, hängt von der jeweiligen Richtung ab, aus der der Drehmomentangriff erfolgt.The Figures 7 and 7 a also show a perspective view of an alternative design of fall protection, which works according to the same principle of the present invention. In contrast to the variant described above, however, the eyelet 19 is attached directly to the footplate, so that in this case no post is required. You can attach the fall protection directly to the eyelet. The eyelet itself can be fixed to the base plate 10, for example, by means of a threaded section on the underside and a nut by screwing or suitable fastening means. When the load case occurs, a torque initially arises which leads to a pivoting movement of the pivoting range of the footplate 10, the pivoting range with the eyelet in the in FIG Figure 7 a shown relief position pivots. The mode of operation is therefore also the same in this variant as in the previously described exemplary embodiment according to Figure 6 , wherein in the specific example the third swivel range 15 swivels upwards from the outside. The question of which swivel range is effective depends on the respective direction from which the torque attack is taking place.

BezugszeichenlisteReference list

1010th
FußplatteFootplate
1111
SchraublöcherScrew holes
1212th
DurchgangslochThrough hole
1313
innerster Schwenkbereichinnermost swivel range
13 a13 a
UmfangsschlitzlinieCircumferential slot line
13 b13 b
MaterialstegMaterial web
1414
Längskanten der FußplatteLong edges of the footplate
1515
zweitinnerster Schwenkbereichsecond innermost swivel range
15 a15 a
UmfangsschlitzlinieCircumferential slot line
15 b15 b
MaterialstegMaterial web
15 c15 c
geradlinige Schlitzliniestraight line of slits
1616
dritter Schwenkbereichthird swivel range
16 a16 a
UmfangsschlitzlinieCircumferential slot line
16 b16 b
MaterialstegMaterial web
16 c16 c
geradlinige Schlitzliniestraight line of slits
1717th
Querkanten der FußplatteCross edges of the footplate
1818th
äußerer Schwenkbereichouter swivel range
18 a18 a
UmfangsschlitzlinieCircumferential slot line
18 b18 b
MaterialstegMaterial web
18 c18 c
geradlinige Schlitzliniestraight line of slits
1919th
Öseeyelet
2020
Pfostenpost
1010th
FußplatteFootplate
1111
SchraublöcherScrew holes
1212th
DurchgangslochThrough hole
1313
innerster Schwenkbereichinnermost swivel range
13 a13 a
UmfangsschlitzlinieCircumferential slot line
13 b13 b
MaterialstegMaterial web
1414
Längskanten der FußplatteLong edges of the footplate
1515
zweitinnerster Schwenkbereichsecond innermost swivel range
15 a15 a
UmfangsschlitzlinieCircumferential slot line
15 b15 b
MaterialstegMaterial web
15 c15 c
geradlinige Schlitzliniestraight line of slits
1616
dritter Schwenkbereichthird swivel range
16 a16 a
UmfangsschlitzlinieCircumferential slot line
16 b16 b
MaterialstegMaterial web
16 c16 c
geradlinige Schlitzliniestraight line of slits
1717th
Querkanten der FußplatteCross edges of the footplate
1818th
äußerer Schwenkbereichouter swivel range
18 a18 a
UmfangsschlitzlinieCircumferential slot line
18 b18 b
MaterialstegMaterial web
18 c18 c
geradlinige Schlitzliniestraight line of slits
1919th
Öseeyelet
2020
Pfostenpost

Claims (12)

  1. Device for preventing persons from falling, in particular from a roof, comprising a foot plate (10) being fixable to an underlying surface, having a stop point that can be attached to the foot plate, comprising either a post projecting upwards from said foot plate, having an eyelet arranged in the upper end region of the post, or an eyelet that can be attached directly at said foot plate, in each case for fixing a cable which protects the person from falling, wherein a central region of the foot plate, in which said post or said eyelet are connected with said foot plate, is slotted around said post or said eyelet along at least one first defined circumferential slotted line (18 a), which extends over at least approximately 270° in the circumferential direction, such that the central region is connected with the remaining peripheral region of said foot plate (10) solely via narrow material webs (18 b), characterized in that in addition to said first circumferential slotted line (18 a) extending over approximately 270° in the circumferential direction, another approximately straight slotted line (18 c) is arranged, each time in a distance between the respective ends of said first circumferential slotted line (18 a), wherein the mentioned distance between said first circumferential slotted line (18 a) and said other straight slotted line (18 c) corresponds to the width of said narrow material webs (18 b).
  2. Device for securing persons against falling according to claim 1, characterized in that in a radial distance within said first defined circumferential slotted line (18 a), at least one second circumferential slotted line (16 a) with a smaller diameter is arranged, the shape of which is geometrically similar to said first circumferential slotted line (18 a), wherein in a plan view, however, said second circumferential slotted line (16 a) is arranged by approximately 90° or approximately 180° offset to said first circumferential slotted line (18 a).
  3. Device for securing persons against falling according to claim 2, characterized in that in a radial distance within said second defined circumferential slotted line (16 a), at least one third circumferential slotted line (15 a) with a smaller diameter is arranged, the shape of which is geometrically similar to said first circumferential slotted line (18 a), wherein in a plan view, however, said third circumferential slotted line (15 a) is arranged by approximately 90° or approximately 180° offset to said first circumferential slotted line (18 a) and/or to said second circumferential slotted line (16 a).
  4. Device for securing persons against falling according to claim 3, characterized in that in a radial distance within said third defined circumferential slotted line (15 a), at least one fourth circumferential slotted line (13 a) with a smaller diameter is arranged, the shape of which is geometrically similar to said third circumferential slotted line (15a), wherein in a plan view, however, said fourth circumferential slotted line (13 a) is arranged by approximately 90° or approximately 180° offset to said first circumferential slotted line (18 a) and/or to said second circumferential slotted line (16 a) and/or to said third circumferential slotted line (15 a).
  5. Device for securing persons against falling according to one of the claims 2 to 4, characterized in that to each of said second circumferential slotted line (16 a) and/or said third circumferential slotted line (15 a), a further approximately straight slotted line (16 c, 15 c) is arranged, each of which is arranged in a distance between the respective ends of each of said circumferential slotted lines (16 a, 15 a), wherein the mentioned distance between the respective ends of each of said circumferential slotted lines (16 a, 15 a) and the respective straight slotted line (16 c, 15 c) in each case corresponds to the width of the left off narrow material webs (16 b, 15 b).
  6. Device for securing persons against falling according to one of the claims 1 to 5, characterized in that said first (18 a) and/or said second (16 a) and/or said third (15 a) and/or said fourth circumferential slotted line (13 a) have approximately the peripheral shape of an omega.
  7. Device for securing persons against falling according to one of the claims 1 to 6, characterized in that the peripheral shape of said first (18 a) and/or said second (16 a) and/or said third (15 a) and/or said fourth circumferential slotted line (13 a) is defined by a sequence of lined-up, straight sub sections, being disposed at an angle to one another, according to the principle of Mohr's circle of stress.
  8. Device for securing persons against falling according to one of the claims 1 to 7, characterized in that said circumferential slotted lines (18 a, 16 a, 15 a, 13 a) and said straight slotted lines (18 c, 16 c, 15 c) are inserted in said foot plate (10) by means of a laser beam or a high-pressure water jet.
  9. Device for securing persons against falling according to one of the claims 1 to 8, characterized in that said post or said eyelet are screw-connected with said foot plate (10).
  10. Device for securing persons against falling according to one of the claims 1 to 9, characterized in that said foot plate (10) can be screw-connected with a trapezoidal metal sheet of a roof construction.
  11. Device for securing persons against falling according to one of the claims 1 to 10, characterized in that said foot plate (10) is made of stainless steel and has a material thickness of approximately 3 to 5 mm.
  12. Device for securing persons against falling according to claim 10 and optionally according to claim 11, characterized in that said post or said eyelet has an outer thread within an end region facing the roof construction and said post or said eyelet can be fixed to said foot plate (10) by means of a nut which can be screwed onto said outer thread.
EP18700283.7A 2017-01-10 2018-01-10 Device for preventing persons from falling Active EP3507432B1 (en)

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AT (1) AT16386U3 (en)
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AT16386U2 (en) 2019-08-15
DE102017100373A1 (en) 2018-07-12
DE202018006106U1 (en) 2019-03-29
WO2018130553A1 (en) 2018-07-19
DE202018006106U9 (en) 2019-12-05
AU2018208514A8 (en) 2019-07-18
US11013941B2 (en) 2021-05-25
EP3507432A1 (en) 2019-07-10
US20200164237A1 (en) 2020-05-28
CA3049873C (en) 2020-03-10
AU2018208514B2 (en) 2021-03-18
AU2018208514A1 (en) 2019-07-04
CA3049873A1 (en) 2018-07-19
AT16386U3 (en) 2021-04-15

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