EP0766771B1 - Safety device for preventing objects dropping from roofs - Google Patents

Safety device for preventing objects dropping from roofs Download PDF

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Publication number
EP0766771B1
EP0766771B1 EP95917983A EP95917983A EP0766771B1 EP 0766771 B1 EP0766771 B1 EP 0766771B1 EP 95917983 A EP95917983 A EP 95917983A EP 95917983 A EP95917983 A EP 95917983A EP 0766771 B1 EP0766771 B1 EP 0766771B1
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EP
European Patent Office
Prior art keywords
safety device
clamp
fall
preventing safety
lower jaw
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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.)
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EP95917983A
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German (de)
French (fr)
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EP0766771A1 (en
Inventor
Klaus Craemer
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Individual
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Individual
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    • 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
    • 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
    • E04G5/14—Railings
    • E04G2005/148—Railings latticed or netted

Definitions

  • the invention relates to fall protection Roofs, especially on roof construction sites, with at least two tension shoes to be attached to rafters, on which they can be attached in the upward direction are, between which there is a catch wall, preferably in the form of a lattice, with one of a movable upper jaw and a lower jaw Mouth, with the straps in one adjacent to the mouth Level are arranged such that the mouth across is open at this level.
  • a generic fall protection system results from DE-U-92 17 451.
  • the bearers are via a screw connection secured by a tension screw attached to the tension shoes.
  • US-A-3 841 609 is a fall protection known, which is designed in the manner of a ferrule.
  • the lower jaw of the tension shoe there goes immediately from the end of the carrier.
  • the movable upper jaw can be seen and determined on the carrier.
  • a hole / rough adjustment is used for this a wedge.
  • the object of the invention is a generic fall protection training in fastening technology cheaper such that sudden loads from the tension shoe be kept away.
  • the invention further proposes that the lower jaw and the upper cheek beyond that occupied by the rafters Clamping range through the mouth of the mouth locking clamping screw can be clamped to each other are. Add to that that through the mouth Cross-section cross-section clamping screw is even framed. To the clamping screw on To secure the tensioning shoe, it is suggested that a head of the clamping screw in the lower jaw an underside of the lower jaw against Pull out of a clamping screw insertion slot the lower jaw is secured. The clamping screw must always resolved with a strong will. An anti-rotation device for the clamping screw can be easily achieved if the head and the recess are out of round.
  • the high altitude jobs, especially roof construction sites Fall protection is provided on sloping roofs designated as a whole by S.
  • It is installed in the area of eaves 1 of the roof and consists of at least two beams 2, which on the roof structure 3 are releasably attached.
  • Carrier 2 assigned tensioning shoe 4.
  • the catching wall 5 and the fence post-like, upper sections the beams 2 form the roof structure 3 outstanding active catch barrier of the Fall protection S.
  • the latter includes one 80 ° angle to the roof covering surface, defined by the fairly steep ascent arranged rafters 6 of the roof structure 3, which Rafters can wear counter battens and the rest the roof battens 7 shown in Figure 1. They run parallel to the ridge or the eaves 1.
  • the carrier 2 of the fall protection S are in one Mouth 8 of the clamping shoes 4 adjacent level E-E arranged.
  • the plane E-E is shown in Figure 3.
  • the Mouth 8 is oriented transversely to this plane, that is, in Longitudinal direction of the eaves course open. The mouth 8 therefore overlaps the cross section of the rafters 6 the side.
  • the mouth 8 of the clamping shoe 4 is of a lower jaw 9 and an upper jaw 10 are formed. Their gripping active Inner surfaces run parallel and are roughened. The Roughening can, as shown, from corrugation tips be educated.
  • the upper jaw 10 is supported on the Top of the rafters 6, the lower jaw 9 pulled against the underside of the rafters 6.
  • upper jaw 10 has an eye 11. It is a box section shaped sleeve section, which is adapted to an internal cross-section Guide bar 12 of the lower jaw 9 adjustable and lockable assigned. So far this construction is comparable to a so-called ferrule.
  • the up pointing guide bar 12 closes with the horizontal aligned lower jaw 9 a right angle.
  • the inside of the eye 11 facing the mouth 8 functions as a plug-in stop surface. Kicks against this tired of the corresponding broad side surface 6 'of Sparrens 6
  • the mouth width can be adjusted by a hole / rough adjustment choose between upper jaw 10 and guide bar 12.
  • the eye oriented parallel to the plane E-E, vertical slots 14.15.
  • a wedge 16 can be driven.
  • From a guide profile 12 is made also provided with slots 17, 18. This too run vertically and are on the guide bar 12 in pairs and in a row for rough adjustment trained lying. Passing the wedge 16, with its horizontal back 19 on the top End of the slots 17,18 is supported on the underlying wedge surface 20 of the wedge 16 the Eye 11 steplessly and downward forced and thus the upper jaw 10 moves downwards until in the state of the desired tensioning effect.
  • the one in a self-locking angular range Wedge surface 20 acts against the lower end of the slots 14 and 15.
  • a tension screw 21 Part of such a safety device V is a tension screw 21.
  • the head 24 sits with a screw shaft section of the same in a matching recess 25 at the bottom of the Lower jaw 9.
  • the head 24 should therefore be around the insertion depth first be lifted out to insert slot 22 to be able to leave.
  • the same measure can also be taken on other end of the clamping screw 21 can be realized as that is also in the drawings.
  • the reference numbers are applied accordingly. Instead of one there Mother 26 enters the recess 25 takes over the one upstream of the nut 26 washer 27 over which the nut 26 is connected coaxially.
  • the nut 26 can be shown by means of a Turn actuating handle 28.
  • the latter consists of a socket 29 with wing 30 attached to it.
  • the lower one End of the socket 29 has receptacles 31 for the Mantle wall of the nut 26 radially outgoing driver pin 32. The extend in the diametral.
  • the out-of-round section can but do not apply if head 24 and recess 25 on top of each other For example, tuned out of round are square.
  • the carrier 2 is movable to a limited extent on the tensioning shoe 4 stored.
  • the plane of movement corresponds to that shown Level E-E.
  • the hinge attachment is on the top End of the guide bar 12.
  • This top end takes a corresponding pivot pin 33.
  • the Cross holes 12 are arranged in the row to achieve an adjustability. That turned away from the mouth 8
  • the end of the pivot pin 33 has a support ring 34 on. Its cavity is formed by the carrier 2 interspersed with a round or polygonal tube. Above the Support ring 34 is a support ring 35, the a grub screw 36 firmly connected to the carrier 2 is.
  • the carrier 2 assigned to the articulated joint in this way takes place then a bondage in the lower area of the shoe 4 before, realized by a receiving housing 37, which fixed in the back of the lower jaw 9 by means of screws 38 is.
  • the lower end 2 'of the carrier 2 protrudes slight underside protrusion into the housing 37.
  • the supernatant can be used to lower this End 2 'against falling out of the carrier 2 from the Secure support ring 34, for example by pulling in a split pin (not shown).
  • the receiving housing 37 contains a buffer spring 39 (see Figure 4). Said buffer spring 39 loads the Carrier 2 in the sense of a stop-limited final or Basic position, as can also be seen in FIG. 4 results.
  • the corresponding anchor point inside of the housing 37 is called 40.
  • the terminal Spring turns of the buffer spring 39 are secured in position by projections so that the buffer spring from the im Design basically frame-shaped, open towards the bottom Recording housing 37 can not fall out.
  • the stop point 40 instead of on the left in Figure 4 would be on the right side (compare dash-dotted lines Presentation).
  • Such a buffer spring 39 causes a damping of the pivoting movement of the carrier 2 in the catching direction.
  • the impact load comes from the direction of the arrow P in Figure 4 too.
  • the suspended swivel path the carrier 2 has an angle of approximately 10 °.
  • the operating handle 28 can be a chain or the like captively on the device.
  • Lower jaw 9 and upper jaw 10 taper to the free End by wedging in this direction. Like both can be seen from the perspective (FIG. 2) and also from FIG. 4, the jaws 9, 10 consist of double-T-profiled cross sections Components, so that in terms of roughening there are parallel gripping bars that are opposite the The base and the top of each cheek are exposed are, so wear primarily on the mouth side.

Abstract

The invention concerns a safety device (S) designed to prevent objects dropping from roofs, in particular for use on roofing sites, the device having at least two clamps (4) designed to be fixed to a rafter (6), plus supports (2) which project up out of the area covered by the roof and between which a safety wall in the form of a grille extends. In order to produce a reliable safety device which is easy to handle, the invention proposes that the supports (2) are located in a plane (E-E) adjacent to the mouths (8) of the clamps (4) and that the open clamp mouths (8) are oriented at right angles to this plane (E-E).

Description

Die Erfindung bezieht sich auf eine Absturzsicherung an Dächern, insbesondere an Dachbaustellen, mit mindestens zwei an Sparren zu befestigenden Spannschuhen, an denen sie in Aufwärtsrichtung überragende Träger befestigbar sind, zwischen denen sich eine Fangwand, vorzugsweise in Form eines Gitters, erstreckt, mit einem aus einer verschieblichen Oberbacke und einer Unterbacke gebildeten Maul, wobei die Träger in einer dem Maul benachbarten Ebene angeordnet sind derart, daß das Maul quer zu dieser Ebene gerichtet offen ist.The invention relates to fall protection Roofs, especially on roof construction sites, with at least two tension shoes to be attached to rafters, on which they can be attached in the upward direction are, between which there is a catch wall, preferably in the form of a lattice, with one of a movable upper jaw and a lower jaw Mouth, with the straps in one adjacent to the mouth Level are arranged such that the mouth across is open at this level.

Eine Absturzsicherung ist aus der Zeitschrift "Das Dachdecker-Handwerk", 3/94, bekannt. Bei dieser Lösung greifen zwingenartig schließbare Spannschuhe an den Seitenflächen der Dachsparren klemmend an. Das Maul dieser Spannschuhe ist nach oben gerichtet. Der Träger sitzt an einem von der Unterseite der Sparren ausgehenden Ausleger des Spannschuhes.Fall protection is from the magazine "Das Dachdecker-Handwerk ", 3/94, is known. With this solution gripping clamp shoes that can be closed in a force-like manner Side surfaces of the rafters jammed. The mouth this tension shoe is directed upwards. The carrier sits on one from the bottom of the rafters Extension of the tension shoe.

Eine gattungsgemäße Absturzsicherung ergibt sich aus der DE-U-92 17 451. Dort sind die an den Spannschuh in Aufwärtsrichtung anschließenden Träger in einer dem Maul benachbarten Ebene angeordnet derart, daß das Maul quer zu dieser Ebene gerichtet offen ist. Die Träger sind über eine spannschraubengesicherte Muffenverbindung an den Spannschuhen befestigt.A generic fall protection system results from DE-U-92 17 451. There are the to the tension shoe in Carrier in an upward direction Mouth adjacent level arranged such that the mouth is open across this plane. The bearers are via a screw connection secured by a tension screw attached to the tension shoes.

Schließlich ist aus der US-A-3 841 609 eine Absturzsicherung bekannt, die in Art einer Zwinge gestaltet ist. Die Unterbacke des dortigen Spannschuhes geht unmittelbar vom Ende des Trägers aus. Die dazu bewegliche Oberbacke läßt sich auf den Träger ver- und feststellen. Finally, from US-A-3 841 609 is a fall protection known, which is designed in the manner of a ferrule. The lower jaw of the tension shoe there goes immediately from the end of the carrier. The movable upper jaw can be seen and determined on the carrier.

Hierzu dient eine Loch/Grobverstellung unter Einsatz eines Einschlagkeiles.A hole / rough adjustment is used for this a wedge.

Aufgabe der Erfindung ist es, eine gattungsgemäße Absturzsicherung befestigungstechnisch günstiger auszubilden derart, daß schlagartige Belastungen vom Spannschuh ferngehalten werden.The object of the invention is a generic fall protection training in fastening technology cheaper such that sudden loads from the tension shoe be kept away.

Gelöst ist diese Aufgabe durch die im Anspruch 1 angegebene Erfindung.This problem is solved by the one specified in claim 1 Invention.

Die daran anschließenden Ansprüche geben vorteilhafte Weiterbildungen an.The subsequent claims give advantageous Training courses.

Zufolge solcher Ausgestaltung ist eine gattungsgemäße Absturzsicherung erhöhter Gebrauchssicherheit geschaffen. Das wird dadurch erreicht, daß der Träger an dem Spannschuh oberhalb der Oberbacke schwenkbar befestigt ist und sein unteres Ende in ein an der Unterbacke sitzendes Aufnahmegehäuse für eine Pufferfeder ragt, zur Dämpfung der Schwenkbewegung des Trägers in Fangrichtung. Das hält schlagartige Belastungen vom Spannschuh fern. Weiter wird vorgeschlagen, daß das Maul des Spannschuhes an einer mit einer Führungsleiste verbundenen Unterbacke und einer auf der Führungsleiste verschieblichen Oberbacke gebildet ist und der Träger an der Führungsleiste schwenkbar befestigt ist. Weiter ist es günstig, daß die Pufferfeder im Aufnahmegehäuse umsetzbar ist von der einen Seite des Trägers auf die andere. Das erlaubt im Handumdrehen ein Umrüsten des Trägers auf rechtsseitige oder linksseitige Anwendung. Weiter bringt die Erfindung in Vorschlag, daß die Unterbacke und die Oberbacke jenseits des vom Sparren eingenommenen Spannbereichs durch eine den Eingang des Maules verschließende Spannschraube zueinander verspannbar sind. Hinzu kommt, daß durch die das Maul querende Spannschraube der Sparrenquerschnitt querschnittsmäßig sogar rahmenförmig gefaßt wird. Um die Spannschraube am Spannschuh zu sichern, wird vorgeschlagen, daß ein an der Unterbacke angreifender Kopf der Spannschraube in einer unterseitigen Vertiefung der Unterbacke gegen Herausziehen aus einem Spannschrauben-Einsteckschlitz der Unterbacke gesichert ist. Die Spannschraube muß stets erst willensbetont gelöst werden. Eine Drehsicherung für die Spannschraube läßt sich einfachst erzielen, wenn deren Kopf und die Vertiefung unrund sind. In Bezug auf eine weitere Sicherungsmaßnahme erweist es ich als vorteilhaft, daß die Öffnungen beider Mäuler der Absturzsicherung aufeinander zu gerichtet sind. Maximale Spannkräfte lassen sich dabei durch eine Loch/Grobverstellung der Oberbacke erreichen, wobei es günstig ist, daß die Loch/Grobverstellung mittels eines Einschlagkeils fixiert ist. Letzterer läßt sich über einen Splint sichern. Über die Keilfläche ist dabei die stufenlose Feinverstellung gegeben. As a result of such a configuration is a generic one Fall protection created increased safety of use. This is achieved in that the wearer on the Clamping shoe pivotally attached above the upper jaw and its lower end in one on the lower jaw protruding seat housing for a buffer spring protrudes, to dampen the pivoting movement of the carrier in the catching direction. This keeps abrupt loads from the tension shoe remote. It is also proposed that the mouth of the Clamping shoe connected to a guide bar Lower jaw and one movable on the guide bar Upper jaw is formed and the carrier on the guide bar is pivotally attached. Is further it is convenient that the buffer spring in the housing can be implemented from one side of the carrier to the other. This allows you to convert the Carrier on right-hand or left-hand application. The invention further proposes that the lower jaw and the upper cheek beyond that occupied by the rafters Clamping range through the mouth of the mouth locking clamping screw can be clamped to each other are. Add to that that through the mouth Cross-section cross-section clamping screw is even framed. To the clamping screw on To secure the tensioning shoe, it is suggested that a head of the clamping screw in the lower jaw an underside of the lower jaw against Pull out of a clamping screw insertion slot the lower jaw is secured. The clamping screw must always resolved with a strong will. An anti-rotation device for the clamping screw can be easily achieved if the head and the recess are out of round. In It proves in relation to another security measure I found it advantageous that the openings of both mouths the fall protection is directed towards each other. Maximum clamping forces can be achieved with a Reach hole / rough adjustment of the top jaw, taking it it is favorable that the hole / rough adjustment by means of a Impact wedge is fixed. The latter can be over secure a split pin. The is over the wedge surface continuous fine adjustment given.

Der Gegenstand der Erfindung ist nachstehend anhand eines zeichnerisch veranschaulichten Ausführungsbeispieles näher erläutert. Es zeigt:

Fig. 1
eine Dachbaustelle unter Einsatz der erfindungsgemäßen Absturzsicherung, und zwar in perspektivischer Darstellung,
Fig. 2
einen Spannschuh der Absturzsicherung mit Träger in perspektivischer Darstellung,
Fig. 3
dasselbe in Seitenansicht und
Fig. 4
die Vorderansicht hierzu.
The subject matter of the invention is explained in more detail below on the basis of an illustrative embodiment. It shows:
Fig. 1
a roof construction site using the fall protection according to the invention, in a perspective view,
Fig. 2
a tension shoe of the fall protection with carrier in perspective,
Fig. 3
the same in side view and
Fig. 4
the front view of this.

Die hochgelegene Arbeitsplätze, insbesondere Dachbaustellen an Schrägdächern sichernde Absturzsicherung ist als Ganzes mit S bezeichnet. The high altitude jobs, especially roof construction sites Fall protection is provided on sloping roofs designated as a whole by S.

Sie ist im Bereich der Traufe 1 des Daches installiert und besteht aus mindestens zwei Trägern 2, welche an der Dachkonstruktion 3 lösbar befestigt sind.It is installed in the area of eaves 1 of the roof and consists of at least two beams 2, which on the roof structure 3 are releasably attached.

Als diesbezügliches Befestigungselement dient ein jedem Träger 2 zugeordneter Spannschuh 4.Each serves as a fastener in this regard Carrier 2 assigned tensioning shoe 4.

Zwischen den über besagte Spannschuhe 4 befestigten Trägern 2 befindet sich eine mit diesen verbundene Fangwand 5, vorzugsweise in Form eines Gitters. Auch ein Netz ist denkbar.Fastened between the tension shoes 4 above Carriers 2 is a catch wall connected to them 5, preferably in the form of a grid. Also a Network is conceivable.

Die Fangwand 5 und die zaunpfahlartigen, oberen Abschnitte der Träger 2 bilden die die Dachkonstruktion 3 nach oben hin überragende fangaktive Barriere der Absturzsicherung S. Letztere schließt dabei einen unter 80° gehenden Winkel zur Dacheindeckungsfläche hin ein, definiert durch die recht steil nach oben ansteigend angeordneten Sparren 6 der Dachkonstruktion 3, welche Sparren eine Konterlattung tragen können und im übrigen die in Figur 1 dargestellten Dachlatten 7 aufnehmen. Die verlaufen parallel zum First bzw. zur Traufe 1.The catching wall 5 and the fence post-like, upper sections the beams 2 form the roof structure 3 outstanding active catch barrier of the Fall protection S. The latter includes one 80 ° angle to the roof covering surface, defined by the fairly steep ascent arranged rafters 6 of the roof structure 3, which Rafters can wear counter battens and the rest the roof battens 7 shown in Figure 1. They run parallel to the ridge or the eaves 1.

Die Träger 2 der Absturzsicherung S sind in einer ein Maul 8 der Spannschuhe 4 benachbarten Ebene E-E angeordnet. Die Ebene E-E ist in Figur 3 eingezeichnet. Das Maul 8 ist quer zu dieser Ebene ausgerichtet, also in Längsrichtung des Traufenverlaufs offen. Das Maul 8 übergreift den Querschnitt des Sparrens 6 folglich von der Seite her.The carrier 2 of the fall protection S are in one Mouth 8 of the clamping shoes 4 adjacent level E-E arranged. The plane E-E is shown in Figure 3. The Mouth 8 is oriented transversely to this plane, that is, in Longitudinal direction of the eaves course open. The mouth 8 therefore overlaps the cross section of the rafters 6 the side.

Das Maul 8 des Spannschuhes 4 ist von einer Unterbacke 9 und einer Oberbacke 10 gebildet. Deren greifaktiven Innenflächen verlaufen parallel und sind gerauht. Die Rauhung kann, wie dargestellt, von Wellungsspitzen gebildet sein. Die Oberbacke 10 stützt sich an der Oberseite des Sparrens 6 ab, die Unterbacke 9 wird klemmend gegen die Unterseite des Sparrens 6 gezogen.The mouth 8 of the clamping shoe 4 is of a lower jaw 9 and an upper jaw 10 are formed. Their gripping active Inner surfaces run parallel and are roughened. The Roughening can, as shown, from corrugation tips be educated. The upper jaw 10 is supported on the Top of the rafters 6, the lower jaw 9 pulled against the underside of the rafters 6.

Bezüglich der Verstellführung der als bewegliche Backe realisierten Oberbacke 10 weist diese ein Auge 11 auf. Es handelt sich um einen kastenprofilförmigen Hülsenabschnitt, welcher auf einer innenquerschnittsangepaßten Führungsleiste 12 der Unterbacke 9 ver- und feststellbar zugeordnet ist. Insoweit ist diese Konstruktion einer sogenannten Zwinge vergleichbar. Die nach oben weisende Führungsleiste 12 schließt mit der horizontal ausgerichteten Unterbacke 9 einen rechten Winkel ein. Die dem Maul 8 zugewandte Innenseite des Auges 11 fungiert als Einsteck-Anschlagfläche. Gegen diese tritt satt die korrespondierende Breitseitenfläche 6' des Sparrens 6.Regarding the adjustment of the as a movable jaw realized upper jaw 10 has an eye 11. It is a box section shaped sleeve section, which is adapted to an internal cross-section Guide bar 12 of the lower jaw 9 adjustable and lockable assigned. So far this construction is comparable to a so-called ferrule. The up pointing guide bar 12 closes with the horizontal aligned lower jaw 9 a right angle. The inside of the eye 11 facing the mouth 8 functions as a plug-in stop surface. Kicks against this tired of the corresponding broad side surface 6 'of Sparrens 6

Die Maulweite läßt sich durch eine Loch/Grobverstellung zwischen Oberbacke 10 und Führungsleiste 12 wählen. Dazu weist das Auge 11, parallel zur Ebene E-E ausgerichtete, vertikale Steckschlitze 14,15 auf. Über diese läßt sich ein Einschlagkeil 16 eintreiben. Die aus einem Kastenprofil hergestellte Führungsleite 12 ist gleichfalls mit Schlitzen 17,18 versehen. Auch diese verlaufen vertikal und sind an der Führungsleiste 12 paarig und zur Grobverstellung in Reihe hintereinander liegend ausgebildet. Unter Passieren des Einschlagkeils 16, der sich mit seinem horizontalen Rücken 19 am oberen Ende der Schlitze 17,18 abstützt, wird über die untenliegende Keilfläche 20 des Einschlagkeils 16 das Auge 11 stufenlos und feinverstellend nach unten gezwungen und somit die Oberbacke 10 abwärts bewegt, bis in den Zustand der erstrebten Spannwirkung. The mouth width can be adjusted by a hole / rough adjustment choose between upper jaw 10 and guide bar 12. For this purpose, the eye 11, oriented parallel to the plane E-E, vertical slots 14.15. About these a wedge 16 can be driven. From a guide profile 12 is made also provided with slots 17, 18. This too run vertically and are on the guide bar 12 in pairs and in a row for rough adjustment trained lying. Passing the wedge 16, with its horizontal back 19 on the top End of the slots 17,18 is supported on the underlying wedge surface 20 of the wedge 16 the Eye 11 steplessly and downward forced and thus the upper jaw 10 moves downwards until in the state of the desired tensioning effect.

Die in einem selbstsperrenden Winkelbereich liegende Keilfläche 20 wirkt gegen das untere Ende der Steckschlitze 14 und 15.The one in a self-locking angular range Wedge surface 20 acts against the lower end of the slots 14 and 15.

Über diese hochwirksame Verspannung des Spannschuhes 4 am Sparren 6 hinaus ist noch eine zusätzliche Sicherung vorgesehen, die im übrigen den Eingang des Maules 8 verschließt. Bestandteil einer solchen Sicherungsvorrichtung V ist eine Spannschraube 21. Letztere läßt sich vom freien Ende des Maules 8 her zuordnen. Dazu weist das freie Ende jeder Backe, also der Unterbacke 9 und der Oberbacke 10 je einen horizontalen Einsteckschlitz 22 bzw. 23 auf. Diese spalten die Backenenden gabelartig, so daß die Spannschraube 21 recht nahe bzw. bis zur anderen Breitseitenfläche 6" des Sparrens 6 herangebracht werden kann und so die Backen 9,10 jenseits des vom Sparren 6 eingenommenen Spannbereichs durch die Spannschraube 21 zueinander verspannbar sind.About this highly effective tensioning of the tensioning shoe 4 at the rafters 6 is an additional fuse provided that the rest of the mouth of the 8th closes. Part of such a safety device V is a tension screw 21. The latter leaves assign themselves from the free end of the mouth 8. To has the free end of each jaw, i.e. the lower jaw 9 and the top jaw 10 each have a horizontal insertion slot 22 and 23 respectively. These split the cheek ends fork-like, so that the clamping screw 21 is very close or to the other broad side surface 6 "of the rafter 6 can be brought up and so the cheeks 9,10 beyond of the clamping area occupied by the rafters 6 are clamped to each other by the clamping screw 21.

Um ein Herausrutschen der Spannschraube 21 aus dem Einsteckschlitz 22 zu unterbinden, sitzt deren Kopf 24 mit einem schraubschaftseitigen Abschnitt desselben in einer passenden Vertiefung 25 an der Unterseite der Unterbacke 9. Der Kopf 24 müßte also um die Einstecktiefe erst ausgehoben werden, um den Einsteckschlitz 22 verlassen zu können. Die gleiche Maßnahme kann auch am anderen Ende der Spannschraube 21 realisiert sein, wie das in den Zeichnungen auch dergestalt ist. Die Bezugsziffern sind sinngemäß angewandt. Statt mit einer dortigen Mutter 26 in die Vertiefung 25 einzutreten, übernimmt das eine der Mutter 26 vorgelagerte Ringscheibe 27 über der koaxial die Mutter 26 anschließt.To prevent the clamping screw 21 from slipping out of the To prevent insertion slot 22, the head 24 sits with a screw shaft section of the same in a matching recess 25 at the bottom of the Lower jaw 9. The head 24 should therefore be around the insertion depth first be lifted out to insert slot 22 to be able to leave. The same measure can also be taken on other end of the clamping screw 21 can be realized as that is also in the drawings. The reference numbers are applied accordingly. Instead of one there Mother 26 enters the recess 25 takes over the one upstream of the nut 26 washer 27 over which the nut 26 is connected coaxially.

Die Mutter 26 läßt sich mittels einer dargestellten Betätigungshandhabe 28 drehen. Letztere besteht aus einer Buchse 29 mit daran sitzendem Flügel 30. Das untere Ende der Buchse 29 besitzt Aufnahmen 31 für von der Mantelwand der Mutter 26 radial ausgehende Mitnehmerzapfen 32. Die erstrecken sich in der Diametralen.The nut 26 can be shown by means of a Turn actuating handle 28. The latter consists of a socket 29 with wing 30 attached to it. The lower one End of the socket 29 has receptacles 31 for the Mantle wall of the nut 26 radially outgoing driver pin 32. The extend in the diametral.

Zur Drehsicherung der Spannschraube 21 bildet diese im Bereich unterhalb des Kopfes 24 einen unrunden Abschnitt aus, welcher an den Flanken des Einsteckschlitzes 22 drehsperrend anliegt. Der unrunde Abschnitt kann aber entfallen, wenn Kopf 24 und Vertiefung 25 aufeinander abgestimmt unrund sind bspw. vierkäntig.To prevent rotation of the clamping screw 21, this forms in Area below the head 24 an out-of-round section from which on the flanks of the insertion slot 22 is rotationally locking. The out-of-round section can but do not apply if head 24 and recess 25 on top of each other For example, tuned out of round are square.

Der Träger 2 ist begrenzt beweglich am Spannschuh 4 gelagert. Die Bewegungsebene entspricht der eingezeichneten Ebene E-E. Die Anlenkbefestigung liegt am oberen Ende der Führungsleiste 12. Dieses obere Ende nimmt einen entsprechenden Gelenkzapfen 33 auf. Der erstreckt sich horizontal, durchsetzt Querbohrungen 12' der Leiste 12 und ist mit Hilfe eines Splintes sicherbar. Die Querbohrungen 12 sind in der Reihe angeordnet zur Erzielung einer Verstellbarkeit. Das dem Maul 8 abgewandte Ende des Gelenkzapfens 33 weist einen Tragring 34 auf. Dessen Höhlung wird vom Träger 2, gebildet von einem Rund- oder Mehrkantrohr durchsetzt. Oberhalb des Tragringes 34 befindet sich ein Stützring 35, der über eine Madenschraube 36 fest mit dem Träger 2 verbunden ist.The carrier 2 is movable to a limited extent on the tensioning shoe 4 stored. The plane of movement corresponds to that shown Level E-E. The hinge attachment is on the top End of the guide bar 12. This top end takes a corresponding pivot pin 33. The stretches horizontal, penetrates transverse bores 12 'of the bar 12 and can be secured with the help of a split pin. The Cross holes 12 are arranged in the row to achieve an adjustability. That turned away from the mouth 8 The end of the pivot pin 33 has a support ring 34 on. Its cavity is formed by the carrier 2 interspersed with a round or polygonal tube. Above the Support ring 34 is a support ring 35, the a grub screw 36 firmly connected to the carrier 2 is.

Der so oben gelenkbeweglich zugeordnete Träger 2 findet sodann eine Fesselung im unteren Bereich des Schuhes 4 vor, realisiert von einem Aufnahmegehäuse 37, welches im Rücken der Unterbacke 9 mittels Schrauben 38 festgelegt ist. Das untere Ende 2' des Trägers 2 ragt mit leichtem unterseitigen Überstand in das Aufnahmegehäuse 37. Der Überstand kann genutzt werden, um dieses untere Ende 2' gegen ein Herausfallen des Trägers 2 aus dem Tragring 34 zu sichern, beispielsweise durch Einziehen eines Splintes (nicht dargestellt).The carrier 2 assigned to the articulated joint in this way takes place then a bondage in the lower area of the shoe 4 before, realized by a receiving housing 37, which fixed in the back of the lower jaw 9 by means of screws 38 is. The lower end 2 'of the carrier 2 protrudes slight underside protrusion into the housing 37. The supernatant can be used to lower this End 2 'against falling out of the carrier 2 from the Secure support ring 34, for example by pulling in a split pin (not shown).

Das Aufnahmegehäuse 37 enthält eine Pufferfeder 39 (vergleiche Figur 4). Besagte Pufferfeder 39 belastet den Träger 2 im Sinne einer anschlagbegrenzten End- oder Grundstellung, wie sie sich ebenfalls aus Figur 4 deutlich ergibt. Die entsprechende Anschlagstelle im Inneren des Aufnahmegehäuses 37 heißt 40. Die endständigen Federwindungen der Pufferfeder 39 sind lagegesichert durch Vorsprünge, so daß die Pufferfeder aus dem im Grunde rahmenförmig gestalten, nach unten hin offenen Aufnahmegehäuse 37 nicht herausfallen kann. Andererseits verbleibt eine Zugänglichkeit für eine etwaige Umrüstung von rechts auf links, in welchem Falle dann die Anschlagstelle 40 statt auf der linken Seite in Figur 4 auf der rechten Seite läge (vergleiche strichpunktierte Darstellung). Eine solche Pufferfeder 39 bewirkt eine Dämpfung der Schwenkbewegung des Trägers 2 in Fangrichtung. Die Auftreffbelastung geht aus Pfeilrichtung P in Figur 4 zu. Der abgefederte Schwenkweg des Trägers 2 hat einen Winkel von ca. 10°.The receiving housing 37 contains a buffer spring 39 (see Figure 4). Said buffer spring 39 loads the Carrier 2 in the sense of a stop-limited final or Basic position, as can also be seen in FIG. 4 results. The corresponding anchor point inside of the housing 37 is called 40. The terminal Spring turns of the buffer spring 39 are secured in position by projections so that the buffer spring from the im Design basically frame-shaped, open towards the bottom Recording housing 37 can not fall out. On the other hand There remains an accessibility for any Conversion from right to left, in which case the stop point 40 instead of on the left in Figure 4 would be on the right side (compare dash-dotted lines Presentation). Such a buffer spring 39 causes a damping of the pivoting movement of the carrier 2 in the catching direction. The impact load comes from the direction of the arrow P in Figure 4 too. The suspended swivel path the carrier 2 has an angle of approximately 10 °.

Wie Figur 1 entnehmbar, sind die Öffnungen der beiden Mäuler 8 der Spannschuhe 4 aufeinander zu gerichtet. Die an dem oberen Ende 2" der Träger 2 befestigte Fangwand 5 wirkt dabei wie eine Strebe, die bei Auftreffen eines Gewichts die Spannschuhe 4 in der Tendenz aufeinander zu zu bewegen trachtet, was den klauenartigen Griff der Spannschuhe 4 nicht beeinträchtigt, diesen vielmehr noch verstärkt, da die Mäuler 8 gegeneinandergezogen werden. As can be seen in Figure 1, the openings of the two Mouth 8 of the clamping shoes 4 directed towards each other. The attached to the upper end 2 "of the carrier 2 Catch wall 5 acts like a strut that strikes a weight of the tension shoes 4 in the tendency tries to move towards each other, what the claw-like Handle of the tension shoes 4 does not affect this rather reinforced, because the mouths 8 pulled against each other will.

Durch Umsetzen der Pufferfeder 39 können die Träger 2 der Absturzsicherung S bezüglich der Federwirkung auf eine gleichsinnige Ausrichtung der Mäuler bzw. auf eine gegensinnige Ausrichtung derselben rasch ausgerüstet werden.By moving the buffer spring 39, the carrier 2 the fall protection S with regard to the spring action an alignment of the mouths in the same direction or on one opposing alignment quickly equipped will.

Die Betätigungshandhabe 28 läßt sich über eine Kette oder dergleichen unverlierbar am Gerät sichern.The operating handle 28 can be a chain or the like captively on the device.

Unterbacke 9 und Oberbacke 10 verjüngen sich zum freien Ende hin durch Auskeilen in dieser Richtung. Wie sowohl der Perspektive (Figur 2) als auch Figur 4 entnehmbar, bestehen die Backen 9,10 aus im Querschnitt doppel-T-profilierten Bauteilen, so daß hinsichtlich der Rauhung parallele Greifleisten vorliegen, die gegenüber der Basis und der Decke der jeweiligen Backe exponiert sind, also maulseitig vorrangig tragen.Lower jaw 9 and upper jaw 10 taper to the free End by wedging in this direction. Like both can be seen from the perspective (FIG. 2) and also from FIG. 4, the jaws 9, 10 consist of double-T-profiled cross sections Components, so that in terms of roughening there are parallel gripping bars that are opposite the The base and the top of each cheek are exposed are, so wear primarily on the mouth side.

Claims (9)

  1. Fall-preventing safety device (S) on roofs, particularly on roofs under construction, with at least two clamp shoes (4) to be attached to spars (6), to which they are attachable in carriers (2) projecting in an upward direction, between which there extends a check wall (5), preferably in the form of a lattice, with a clamp (8) formed from a displaceable upper jaw (10) and a lower jaw (9), the carriers (2) being disposed in a plane (E-E) adjacent to the clamp (8) such that the clamp (8), aligned transversely to this plane (E-E), is open, characterised in that the carrier (2) is fixed to pivot on the clamp shoe (4) above the upper jaw (10), and its lower end (2') projects into a receiving housing (37) containing a buffer spring (39) and sitting on the lower jaw (9), in order to damp the pivoting movement of the carrier (2) in the check direction (P).
  2. Fall-preventing safety device according to claim 1, characterised in that the clamp (8) of the clamp shoe (4) is formed on a lower jaw (9) connected to a guide rail (12) and an upper jaw (10) displaceable on the guide rail (12), and the carrier (2) is fixed to pivot on the guide rail (12).
  3. Fall-preventing safety device according to claim 1, characterised in that the buffer spring (39) may be converted in the receiving housing (37), from one side of the carrier (2) to the other.
  4. Fall-preventing safety device according to claim 1, characterised in that the lower jaw (9) and the upper jaw (10) may be clamped together on the far side of the clamp area occupied by the spar (6) by means of a clamp screw (21) closing the entry to the clamp (8).
  5. Fall-preventing safety device according to claim 4, characterised in that a head (24) of the clamp screw (21) engaging on the lower jaw (9) is secured in an underside recess (25) of the lower jaw (9) against withdrawal from a clamp screw insertion slot (22) of the lower jaw (9).
  6. Fall-preventing safety device according to claim 5, characterised in that the head (24) and the recess (25) are non-round.
  7. Fall-preventing safety device according to one or more of the preceding claims, characterised in that the openings of both jaws (8) are aligned toward one another.
  8. Fall-preventing safety device according to claim 1, characterised by an aperture/coarse adjustment of the upper jaw (10).
  9. Fall-preventing safety device according to claim 8, characterised by the aperture/coarse adjustment is achieved by means of a knock-in wedge (16).
EP95917983A 1994-06-23 1995-04-29 Safety device for preventing objects dropping from roofs Expired - Lifetime EP0766771B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9410303U 1994-06-23
DE9410303U DE9410303U1 (en) 1994-06-23 1994-06-23 Fall protection on roofs
PCT/EP1995/001641 WO1996000337A1 (en) 1994-06-23 1995-04-29 Safety device for preventing objects dropping from roofs

Publications (2)

Publication Number Publication Date
EP0766771A1 EP0766771A1 (en) 1997-04-09
EP0766771B1 true EP0766771B1 (en) 1998-01-14

Family

ID=6910333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95917983A Expired - Lifetime EP0766771B1 (en) 1994-06-23 1995-04-29 Safety device for preventing objects dropping from roofs

Country Status (5)

Country Link
EP (1) EP0766771B1 (en)
AT (1) ATE162264T1 (en)
AU (1) AU2409295A (en)
DE (2) DE9410303U1 (en)
WO (1) WO1996000337A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI106877B (en) * 1998-05-19 2001-04-30 Peltitarvike Oy Device for attaching a guardrail
AU725242B3 (en) * 1998-12-31 2000-10-12 Michael Bourke Improvements in stanchions
AU2002950655A0 (en) * 2002-08-08 2002-09-12 Frank Stojanovic Post and rail assembly
ITUA20162457A1 (en) * 2016-04-11 2017-10-11 Faresin Building S P A SECURITY PARAPET STRUCTURE FOR CASSERATURES FOR FLOORS
ITUA20162458A1 (en) * 2016-04-11 2017-10-11 Faresin Building S P A ANTI-FALL SAFETY STRUCTURE FOR CASSERATURE WITH PORTABLE PANELS FOR FLOORS
DE102019107461A1 (en) * 2019-03-22 2020-09-24 Peri Gmbh Bracket for holding a railing component on a ceiling formwork panel
EP3983626A1 (en) * 2019-06-14 2022-04-20 Basf Se Support post and modular quick-clamp railing
US20210017778A1 (en) * 2019-07-19 2021-01-21 Rino Phillippe ALBERT Roofing guard for carpenters
FR3109597B1 (en) * 2020-04-22 2022-08-26 Batiroc Protect safety slide device for building personnel, resting on a "Doka"® type formwork beam
CN114182947B (en) * 2021-10-13 2023-04-14 河北盛卓建筑设备制造有限公司 Intelligent integrated climbing frame

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB767212A (en) * 1954-04-08 1957-01-30 Manchester Slate Company Ltd Improvements relating to safety appliances for workmen to be used in the roofing of structures
US3841609A (en) * 1972-03-17 1974-10-15 M Smith Perimeter guard rail system
FR2589182B1 (en) * 1985-10-28 1987-12-18 Rennepont Sa SITE GUARDRAIL
FR2641302A1 (en) * 1988-12-30 1990-07-06 Pfister Jean Device for fixing a temporary guardrail on the edge of a construction element
DE9217451U1 (en) * 1992-12-21 1994-04-28 E J Lachner Spezialmaschinen V Fall protection device for roof work

Also Published As

Publication number Publication date
EP0766771A1 (en) 1997-04-09
DE9410303U1 (en) 1995-10-19
DE59501302D1 (en) 1998-02-19
WO1996000337A1 (en) 1996-01-04
ATE162264T1 (en) 1998-01-15
AU2409295A (en) 1996-01-19

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