DK155891B

DK155891B - CLUTCHING UNIT FOR UNLOCKABLE CLUTCH OF A MAINTENANCE RECTANGULAR CONSTRUCTION PART TO AND BETWEEN A pair of posts, ISSELVES TO A SCALE

Info

Publication number: DK155891B
Application number: DK441885A
Authority: DK
Inventors: Tjipke Gerard Klijnstra
Original assignee: Bijstede Bv Ind & Handel
Priority date: 1984-10-01
Filing date: 1985-09-30
Publication date: 1989-05-29
Also published as: DK441885A; EP0180260A1; EP0180260B1; DK441885D0; NO161868C; DK155891C; ZA857489B; ATE31567T1; NL8402996A; NO853888L; NO161868B; DE3561254D1

Abstract

Coupling system for detachably coupling a substantially rectangular construction member to and between two uprights (2) in particular a railing (4) to a scaffold (1), by means of claw parts (7) mounted at the corners of the member (4) and projections (15, 16) mounted on the uprights (2) to interact with the claw parts (7). In the coupled state the member (4) is in a vertical position in a plane through the uprights (2). For the purpose of uncoupling, the member (4) must be displaced upwards and then rotated about an axis through the upper projections so that the lower claw parts (7) are released from the corresponding lower projections (16), to a certain minimum inclined position of the member (4) or further so that the upper claw parts (7) can then be released from the corresponding projections (15) by obliquely displacing the member (4) upwards. For the purpose of coupling the steps for uncoupling must be carried out in the reverse order.

Description

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Opfindelsen angår et koblingsaggregat af den i indledningen til krav 1 nævnte art til udløseligt kobling af en konstruktionsdel til og mellem to stolper.The invention relates to a coupling assembly of the kind mentioned in the preamble of claim 1 for releasably coupling a structural part to and between two posts.

Et koblingsaggregat af denne art kendes fra beskrivelsen til den offentliggjorte franske patentansøgning nr.A coupling assembly of this kind is known from the specification of the published French patent application no.

5 2 404 723. Konstruktionsdelen kan have forskellige udform ninger og anvendelser, men er især beregnet til anvendelse i et stillads, f.eks. som støtte for planker eller som gelænder.5 2 404 723. The structural part may have different designs and uses, but is especially intended for use in a scaffold, e.g. as a support for planks or as handrails.

I det kendte aggregat består fremspringene af runde 10 tappe, som hver især ved sine yderender har en langs omkredsen forløbende flange. Hver kæbedel er dannet af et rørformet element, hvis midterlinje er sammenfaldende med den tilsvarende taps midterlinje, når konstruktionsdelen er koblet til stolperne. Det rørformede elements 15 indvendige diameter svarer til eller er lidt større end den tilsvarende taps udvendige diameter. I afstand fra hvert rørformet elements ydre ende er der udformet en cirkulær udsparing på den indvendige kant, hvis midter-linje er sammenfaldende med det rørformede elements 20 midterlinje, og hvis dimensioner svarer til dimensionerne for den tilsvarende taps flange. Hvert rørformet element har en åben periféridel, så at dets tværsnit er i det væsentlige U-formet og beskriver en cirkulær bue på tilnærmelsesvis 240°. Det rørformede elements åbne del 25 danner passageåbningen i kæben, som er dannet af det rørformede element. Når konstruktionsdelen er koblet til stolperne, ligger passageåbningen i hver øvre klodels kæbe i et vandret plan i ringe afstand under den tilsvarende taps midterlinje. Når konstruktionsdelen er koblet 30 til stolperne, ligger passageåbningen for hver nedre klodels kæbe i et vandret plan i kort afstand fra den tilsvarende taps midterlinje. Konstruktionsdelen kan drejes fra denne stilling omkring en akse gennem de øvre fremspringsIn the known assembly, the projections consist of round 10 pins, each having at its outer ends a flange extending along the circumference. Each jaw member is formed of a tubular member whose center line coincides with the corresponding line center line when the structural member is coupled to the posts. The inner diameter of the tubular element 15 corresponds to or is slightly larger than the outer diameter of the corresponding pin. At a distance from the outer end of each tubular element, a circular recess is formed on the inner edge, the center line of which coincides with the center line of the tubular element 20 and the dimensions of which correspond to the dimensions of the flange of the corresponding pin. Each tubular member has an open peripheral member so that its cross-section is substantially U-shaped and describes a circular arc of approximately 240 °. The open portion 25 of the tubular member forms the passage opening in the jaw formed by the tubular member. When the structural member is coupled to the posts, the passage opening in the jaw of each upper globe lies at a horizontal plane at a slight distance below the center line of the corresponding tab. When the structural member is coupled 30 to the posts, the passage opening for each lower globe jaw is in a horizontal plane a short distance from the center line of the corresponding tab. The structural member may be rotated from this position about an axis through the upper projections

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2 midterlinje i en retning, så at de nedre klodele frigøres fra de nedre tappe, og delen kan bevæges skråt opad, efter at en minimal vinkel i forhold til planet gennem tappene er blevet overskredet, så at de øvre klodele frigøres fra de øvre tappe. Med henblik på fastgørelse af konstruktionsdelen skal disse trin udføres i modsat 5 rækkefølge.2 is centered in a direction so that the lower claw portions are released from the lower pins and the portion can be moved obliquely upwards after a minimal angle to the plane through the pins has been exceeded so that the upper claw portions are released from the upper pins. In order to secure the structural part, these steps must be carried out in the opposite order.

1 beskrivelsen til den nævnte franske patentansøgning nr.In the description of said French patent application no.

2 404 723 foreslås endvidere låseorganer, som modvirker drejning af konstrukdelen omkring en akse gennem de øvre tappes midterlinjer, når konstruktionsdelen er 10 koblet til stolperne, og de nedre klodele er i indgreb omkring de nedre tappe.2 404 723 are further proposed locking means which counteract rotation of the structural member about an axis through the center lines of the upper pins when the structural member is coupled to the posts and the lower claw members engage around the lower pins.

Det kendte aggregat har den ulempe, at der til modvirkning af utilsigtet drejning af konstruktionsdelen kræves yderligere låseorganer. En anden ulempe består i, at 15 den nævnte minimale vinkel for konstruktionsdelens skråt opadgående bevægelse er lille som følge af tappenes lille tykkelse i forhold til afstanden mellem to oven over hinanden monterede tappe. Disse ulemper er særlig gældénde, når konstruktionsdelen er et gelænder, som 20 skal kobles til stolperne i et stillads. Ved en uløselig kobling af et gelænder til et stillads er det især ønskeligt, at der skal anvendes så få komponenter som muligt, og at utilsigtet frikobling af gelænderet fra stolperne som følge af ubevidst forkerte handlinger af dem, som 25 arbejder på stilladset, hindres såvidt muligt, selv hvis der ikke er monteret separate låseorganer.The known assembly has the disadvantage that additional locking means are required to counteract unintentional rotation of the structural part. Another disadvantage is that the said minimum angle for the inclined upward movement of the structural member is small due to the small thickness of the pins relative to the distance between two overlaid pins. These disadvantages are particularly debilitating when the structural member is a handrail, which must be coupled to the posts in a scaffold. By insoluble coupling of a handrail to a scaffold, it is particularly desirable that as few components as possible be used and that inadvertent uncoupling of the handrail from the posts as a result of unintentionally wrong actions by those working on the scaffold is prevented as far as possible. possible even if no separate locking means are fitted.

Hertil kommer, at låseorganerne i det kendte koblings-aggre- gat, især hvis konstruktionsdelen er et gelænder til et stillads, består af en U-profileret del, som 30 kan monteres over en stolpe, og som har sådanne dimen sioner, at der mellem dele af disses flanger er mulighedIn addition, the locking means of the known coupling assembly, especially if the structural part is a railing for a scaffold, consists of a U-profiled part which can be mounted over a post and which has dimensions such that between parts of their flanges are possible

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3 for bevægelse med et lille spillerum over en nedre tap med en dertil koblet klodel, og at der ved hjælp af en udskæring på den U-profilerede del er mulighed for ophængning på en tap, der er specielt monteret med henblik 5 på dette på den tilsvarende stolpe. Ued anvendelse af de kendte låseorganer er det ikke muligt at montere tappe i samme højde på begge sider af en stolpe med henblik på at koble to konstruktionsdeles klodele til denne på begge sider af stolpen.3 for movement with a small clearance over a lower pin with a coupling part connected thereto, and that by means of a cut-out on the U-profile part it is possible to hang on a pin specially mounted for this purpose on the corresponding post. Without the use of the known locking means, it is not possible to mount pins at the same height on both sides of a pole in order to connect two claw parts of the construction to it on both sides of the pole.

10 Formålet med opfindelsen er at afhjælpe ulemperne ved det kendte koblingsaggregat. Dette formål opnås ifølge opfindelsen ved, at koblingsaggregatet er udformet som angivet i den kendetegnende del af krav 1.The object of the invention is to overcome the disadvantages of the known coupling assembly. This object is achieved according to the invention in that the coupling assembly is designed as defined in the characterizing part of claim 1.

Den nævnte minimumsvinkel kan da vælges på enkel måde 15 og være temmelig stor, f.eks. 30° - 60°, ved, at der vælges passende dimensioner for aggregatets forskellige dele, f.eks. ved at der vælges en vis højde for det ene øvre fremspring. Når konstruktionsdelen er forbundet med stolperne, hviler de øvre og/eller nedre klodele 20 på de tilsvarende fremspring, og disse er i det mindste delvis optaget i rummet skråt over den respektive kæbes passageåbning. Som følge heraf kan konstruktionsdelen ikke forskydes til siden, på tværs af planet gennem klodelene. Afhængigt af højden af de nævnte rum nær 25 kæbernes passageåbninger, kan konstruktionsdelen efter * kobling til stolperne forskydes lodret. Kun hvis den lodrette forskydning foretages i en sådan grad, at de nedre fremspring ligger under de øvre afgrænsninger for de respektive kæbers passageåbninger, kan konstruktions-30 delen drejes til den stilling, hvor den nævnte minimumsvinkel findes, eller videre, hvorpå delen kan frigøres fra de øvre fremspring ved forskydning skråt opad. Ydermere kræver koblingsaggregatet ifølge opfindelsen ingen yderligereSaid minimum angle can then be simply selected 15 and be rather large, e.g. 30 ° - 60 °, by selecting appropriate dimensions for the various parts of the assembly, e.g. by selecting a certain height for one upper projection. When the structural member is connected to the posts, the upper and / or lower claw portions 20 rest on the corresponding projections, and these are at least partially accommodated in the space obliquely over the passage opening of the respective jaw. As a result, the structural member cannot be displaced laterally, across the plane through the globe sections. Depending on the height of said compartments near the passage apertures of the jaws, the structural part may, after * coupling to the posts, be displaced vertically. Only if the vertical displacement is made to such an extent that the lower projections are below the upper boundaries of the respective jaws' passage openings, can the structural member be rotated to the position where said minimum angle exists, or further, whereby the member can be released from the upper projections by displacement obliquely upward. Furthermore, the clutch assembly according to the invention requires no further

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4 låseorganer til at hindre utilsigtet drejning af konstruktionsdelen fra den lodrette stilling omkring en akse gennem de øvre fremspring. Som følge heraf opnås et koblingsaggregat, som frembyder yderst god sikring mod utilsigtet frikobling af en konstruktionsdel fra stolperne.4 locking means for preventing inadvertent rotation of the structural member from the vertical position about an axis through the upper projections. As a result, a coupling assembly is obtained which provides extremely good protection against the inadvertent decoupling of a structural part from the posts.

5 Dette udgør en meget vigtig fordel, når konstruktionsdelen anvendes som gelænder i et stillads.5 This is a very important advantage when the structural part is used as a railing in a scaffold.

Yderligere sikring opnås, hvis der på den ene eller på begge sider i forhold til et symmetriplan gennem fremspringene findes låsedele ved fremspringenes yderender, 10 som kan gå i indgreb bag klodelenes tilsvarende dele.Further securing is achieved if, on one or both sides relative to a plane of symmetry through the projections, locking members are provided at the outer ends of the projections, which may engage behind the corresponding parts of the claw members.

Dette modvirker vandret forskydning af konstruktionsdelen i dennes lodrette stilling.This counteracts horizontal displacement of the structural member in its vertical position.

Ved affasning af visse kanter på fremspringene og på klodelene kan det opnås, at afstanden mellem stolperne 15 ikke er kritisk, og/eller at konstruktionsdelen kan kobles til stolperne på fastspændende vibrationsfri måde.By beveling certain edges on the projections and on the claw members, it can be achieved that the distance between the posts 15 is not critical and / or that the structural member can be coupled to the posts in a clamping vibration-free manner.

Fra det tyske offentliggørelsesskrift nr. 2 333 957 kendes et koblingsaggregat, hvor fremspring, der er 20 tilspidset nedadtil og udformet som kroge, er anbragt i hjørnerne af et rektangel på konstruktionsdelen, og som kan indføres fra oven i tilsvarende rørformede elementer, som er monteret på stolperne. Den nedre krogs tapkant danner et stop, som ved forbindelse af konstruktionsdelen 25 til stolperne støtter bundkanten i det tilsvarende øvre rørformede element under en lille lodret forskydning.German publication specification 2 333 957 discloses a coupling assembly, in which projections 20 which are tapered downwards and formed as hooks are arranged in the corners of a rectangle on the structural part and which can be inserted from above into corresponding tubular elements which are mounted on the posts. The tab edge of the lower hook forms a stop which, when connecting the structural member 25 to the posts, supports the bottom edge of the corresponding upper tubular member during a small vertical displacement.

Som følge heraf kan konstruktionsdelens øvre kroge kun indføres i de øvre rørformede elementer fra en vis skråtstil-let stilling i forhold til et plan gennem stolperne 30 og kan derpå drejes. Når konstruktionsdelen da er i en lodret stilling, kan den sænkes, så at alle krogene indføres i de respektive rørformede elementer. Når deAs a result, the upper hooks of the structural member can only be inserted into the upper tubular members from a certain inclined position relative to a plane through the posts 30 and can then be rotated. When the structural member is then in a vertical position, it can be lowered so that all the hooks are inserted into the respective tubular elements. When they

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5 øvre kroge er indført i de tilsvarende rørformede elementer, men ikke de nedre kroge, kan konstruktionsdelen i dette kendte koblingsaggregat imidlertid drejes i begge retninger fra planet gennem stolperne. Dette er en alvorlig ulempe, 5 især hvis konstruktionsdelen er et stilladsgelænder, eftersom det under drejningen kan ske, at personerne på stilladset kan falde ned under gelænderet under drejningen.However, if 5 upper hooks are inserted into the corresponding tubular elements, but not the lower hooks, the structural part of this known coupling assembly can, however, be rotated in both directions from the plane through the posts. This is a serious disadvantage, especially if the structural part is a scaffold rail, since during the rotation it may happen that the persons on the scaffold may fall below the rail during the rotation.

Opfindelsen forklares nærmere i det følgende under henvisning til tegningen, hvor 10 fig. 1 viser en afbildning forfra af et stillads med et udløseligt gelænder under anvendelse af koblings-aggregatet ifølge opfindelsen, fig. 2 viser i større målestok koblingsaggregatets klodele med forskellige nedre og øvre koblingsdele udformet 15 med fremspring, fig. 3 viser i større målestok en del af det i fig.The invention will be explained in more detail below with reference to the drawing, in which: FIG. 1 is a front elevational view of a scaffold with a releasable handrail using the coupling assembly of the invention; FIG. Figure 2 shows, on a larger scale, the clutch parts of the clutch assembly with various lower and upper clutch parts formed 15 with projections; 3 shows, on a larger scale, part of the embodiment of FIG.

1 viste koblingsaggregat, og fig. 4a, b, c og d viser et snit langs linjen IV - IV i fig. 3 med gelænderet i forskellige stillinger, før 20 det kobles til eller frikobles fra stilladset.1, and FIG. 4a, b, c and d show a section along the line IV - IV in fig. 3 with the handrail in various positions before it is connected or disconnected from the scaffold.

Den i fig. 1 forfra viste stilladskonstruktion består af et antal stolper 2, til hvilke der er fastgjort vandret forløbende ridebomme 3. 1 2 3 4 ridebommenes 3 plan kan der monteres planker, som 25 eventuelt understøttes af ridebommene 3, så at der kan 2 udføres arbejde i stor højde over jordoverfladen. For 3 at beskytte personalet er der derfor monteret et gelænder 4 på de nødvendige steder mellem to stolper 2.The FIG. 1, a front view of the scaffolding structure consists of a number of posts 2 to which horizontally extending riding beams 3 are attached. 1 2 3 4 the plane of the riding beams 3, planks can be mounted which 25 may be supported by the riding beams 3 so that 2 can be carried out in large height above ground level. Therefore, in order to protect the staff 3, a handrail 4 is mounted in the necessary places between two posts 2.

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Gelænderet 4 ifølge opfindelsen, som er vist i fig.The railing 4 of the invention shown in FIG.

1, består af et antal vandrette rørstykker 5, som holdes i en specificeret indbyrdes afstand af tværstykker 6, som er fastgjort til rørstykkerne 5. I den viste udførel-5 sesform er alle fire ender af rørstykkerne 5 forsynet1, consists of a plurality of horizontal tubes 5 held at a specified spacing of transverse pieces 6 which are attached to the tubes 5. In the embodiment shown, all four ends of the tubes 5 are provided.

med identiske klodele 7, som er vist i større målestok i fig. 2. Stolperne 2 er modsat klodelene 7 på gelænderet 4, som skal kobles til stolperne 2, udformet med en øvre koblingsdel 8 og en nedre koblingsdel 9, og disse 10 dele er ligeledes vist i større målestok i fig. 2. Iwith identical claw portions 7, shown on a larger scale in FIG. 2. The posts 2 are opposite to the claw portions 7 of the railing 4, which are to be coupled to the posts 2, formed with an upper coupling part 8 and a lower coupling part 9, and these 10 parts are also shown on a larger scale in FIG. 2. I

den viste udførelsesform for koblingsaggregatet ifølge opfindelsen, som har fire identiske klodele 7, har de øvre og de nedre koblingsdele 8, 9 forskellige dimensioner.the illustrated embodiment of the coupling assembly according to the invention, which has four identical claw parts 7, has different dimensions for the upper and lower clutch parts 8, 9.

15 Som vist i fig. 2 har klodelene 7 og koblingsdelene 8, 9 en symmetrisk konstruktion i forhold til planet gennem rørstykkerne 5, med undtagelse af en affasning på koblingsdelen 8. En klodel 7 har således to kæber 10, som er adskilt af en lodretgående stopdel 11, som 20 på hver side har en stopflade 12. Ved stopdelens 8 bundkant er der udformet en bunddel 13, som er rettet vinkelret på denne. I afstand fra hver stopflade 12 er der udformet en relativ kort, nedadgående flange 14, så at der findes en åbning mellem flangens 14 bundkant 25 og bunddelens 13 topkant.15 As shown in FIG. 2, the ball parts 7 and the coupling parts 8, 9 have a symmetrical construction with respect to the plane through the pipe pieces 5, with the exception of a bevel on the coupling part 8. Thus, a ball part 7 has two jaws 10 separated by a vertical stop part 11 which 20 each side has a stop surface 12. At the bottom edge of the stop part 8 a bottom part 13 is formed which is perpendicular to it. At a distance from each stop surface 12, a relatively short downward flange 14 is formed so that an opening exists between the bottom edge 25 of the flange 14 and the top edge of the bottom part 13.

Koblingsdelene 8, 9 er hver især udformet med mindst et fremspring henholdsvis 15, 16, som er rettet mod den respektive klodel 7. Enderne på fremspringene 15, 16 er udformet med blokeringspartier henholdsvis 17 30 og 18, som står vinkelret på fremspringene 15, 16. Højden af koblingsdelens 8 fremspring 15 og blokeringsparti 17 er større end afstanden mellem flangens 14 bundkant og bunddelen 13 men mindre end højden af stopdelen 11.The coupling members 8, 9 are each formed with at least one protrusion 15, 16, respectively, which are directed to the respective claw part 7. The ends of the protrusions 15, 16 are formed with blocking portions 17 and 18, respectively, which are perpendicular to the protrusions 15, 16 The height of the projection 15 of the coupling member 8 and the blocking portion 17 is greater than the distance between the bottom edge of the flange 14 and the bottom member 13 but less than the height of the stop member 11.

Højden af bundkoblingsdelens 9 fremspring 16 og blokerings-The height of the protrusion 16 of the bottom coupling member 9 and the locking member

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7 parti 18 svarer tilnærmelsesvis til men er lidt mindre end afstanden mellem bundkanten på flangen 14 og bunddelen 13. Afstanden mellem topkanten på den øvre koblingsdels 8 fremspring 15 og den nedre koblingsdels 9 er 5 større end afstanden mellem støttefladerne på de øvre og nedre klodeles 7 bunddele 13. I den viste udførelses-form svarer denne forskel i afstand tilnærmelsesvis til halvdelen af flangernes 14 højde.7 portion 18 is approximately similar to, but is slightly smaller than, the distance between the bottom edge of the flange 14 and the bottom portion 13. The distance between the top edge of the projection 15 of the upper coupling member 8 and the lower coupling member 9 is greater than the distance between the supporting surfaces of the upper and lower globe 7. bottom portions 13. In the embodiment shown, this difference in distance corresponds approximately to half the height of the flanges 14.

Når fremspringene 15, 16 er optaget i de tilsvarende 10 klodele 7, modvirkes forskydning af rørstykkerne 5 i gelænderets 4 plan i vandret retning, fordi blokerings-partierne 17, 18 optages inde i en passage, mellem stopdelen 11 og rørstykket 5 og en passage mellem flangen 14 og rørstykket 5.When the projections 15, 16 are received in the corresponding 10 claws 7, displacement of the pipe pieces 5 in the plane of the handrail 4 is counteracted in the horizontal direction because the blocking portions 17, 18 are accommodated within a passage, between the stop part 11 and the pipe piece 5 and a passage between the flange 14 and the pipe piece 5.

15 Den minimumsvinkel, som kræves for at bringe fremspringet 15 med blokeringspartiet 17 på en øvre koblingsdel ind i en øvre klodels 7 kæbe 10, kan bestemmes ved passende valg af dimensionerne for koblingsdelen 8 og klodelen 7, og svarer fortrinsvis til mindst 30°. Denne minimums-20 vinkel afhænger bl. a. af bredden af bunddelen 13 og bredden af blokeringspartiet 17.The minimum angle required to bring the projection 15 with the locking portion 17 of an upper coupling part into the jaw 10 of an upper globe 7 can be determined by appropriately selecting the dimensions of the coupling part 8 and the claw part 7, and preferably corresponds to at least 30 °. This minimum 20 angle depends on a. of the width of the bottom portion 13 and the width of the blocking portion 17.

Eftersom fremspringene 15, 16 med låsepartierne 17, 18 er udformet på en koblingsdel 8 eller 9, kan de nemt monteres i korrekt bestemte stillinger på stolperne 25 2, f.eks. ved svejsning eller ved hjælp af nitter.Since the projections 15, 16 with the locking portions 17, 18 are formed on a coupling part 8 or 9, they can easily be mounted in correctly determined positions on the posts 25 2, e.g. by welding or using rivets.

Fig. 3 viser i større målestok en del af det i fig.FIG. 3 shows, on a larger scale, part of the embodiment of FIG.

1 viste stillads og især en del af koblingsaggregatet ifølge opfindelsen set fra stilladset, idet gelænderet er beliggende i hvilestillingen og koblet til stilladset 1.1 and, in particular, part of the coupling assembly according to the invention viewed from the scaffold, the handrail being in the resting position and coupled to the scaffold 1.

30 Fig. 4a, b, c og d viser i snit langs linjen IV - IVFIG. 4a, b, c and d show in section along line IV - IV

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8 i fig. 3 de forskellige trin i rækkefølge ved kobling af gelænderet 4 til stilladset 1 eller i modsat rækkefølge ved fjernelse af gelænderet 4 fra stilladset 1.8 in FIG. 3 shows the different steps in sequence when coupling the railing 4 to the scaffold 1 or in the opposite order by removing the railing 4 from the scaffold 1.

Med henblik på tilkobling skal gelænderet 4 i en første 5 fase som vist i fig. 4a anbringes i en minimumsvinkel i forhold til planet gennem det respektive sæt stolper 2, så at de øvre klodeles 7 kæbe 10 kan anbringes over det respektive-fremspring 17 og blokeringsparti 17.For connection, the railing 4 in a first phase as shown in FIG. 4a is positioned at a minimum angle with respect to the plane through the respective set of posts 2, so that the jaw 10 of the upper claws 7 can be placed over the respective projection 17 and blocking portion 17.

Gelænderet 4 kan derpå drejes i delens 19 retning, indtil 10 en nedre klodels 7 respektive flange 14 som vist i fig.The railing 4 can then be rotated in the direction of the part 19 until 10 and a respective flange 14 of the lower block 7 as shown in FIG.

4b rammer topkanten af fremspringet 16 på den nedre koblingsdel 9.4b, the top edge of the projection 16 hits the lower coupling portion 9.

Når gelænderet 4 derpå hæves i forhold til fremspringene 15, 16 som vist i fig. 4c, kan gelænderet 4 drejes videre 15 i pilens 19 retning, så at fremspringet 16 på den nedre koblingsdel 9 føres ind i den nedre klodels 7 respektive kæbe. Når gelænderet 4 derpå sænkes, vil det ligge i brugsstillingen og være forbundet med stilladset 1, som vist i fig. 4d.When the handrail 4 is then raised relative to the projections 15, 16 as shown in FIG. 4c, the railing 4 can be further rotated 15 in the direction of arrow 19 so that the projection 16 of the lower coupling part 9 is inserted into the respective jaw of the lower clamp 7. When the handrail 4 is then lowered, it will lie in the operating position and be connected to the scaffold 1, as shown in FIG. 4d.

20 Igelænderets 4 brugsstilling kan gelænderet kun forskydes et kort stykke lodret og kun et ubetydeligt stykke i en retning vinkelret på planet gennem gelænderet 4.20 The position of the railing 4 of the railing 4 can only be displaced a short distance vertically and only a negligible distance in a direction perpendicular to the plane through the railing 4.

Hvis gelænderet 4 successivt bringes i de i fig. 4d, 4c, 4b viste stillinger, er der ikke fare for personalet, 25 som arbejder på stilladset 1, fordi gelænderet 4 kun kan fjernes i den i fig. 4a viste skrå stilling for de øvre fremspring 15.If the railing 4 is successively brought into the position shown in FIG. 4d, 4c, 4b, there is no danger to the staff 25 working on scaffold 1 because the railing 4 can only be removed in the position shown in FIG. 4a shows the inclined position of the upper projections 15.

Da koblingsaggregatet har en symmetrisk konstruktion i forhold til planet gennem gelænderets 4 rørstykker 30 5, dvs. eftersom det har en kæbe 10 på hver side af en stopdel 11, vil der ikke opstå problemer ved positioneringen af gelænderet 4 under dettes montering.Since the coupling assembly has a symmetrical construction with respect to the plane through the pipe pieces 30 5 of the handrail 4, ie. since it has a jaw 10 on each side of a stop portion 11, no problems will arise in the positioning of the railing 4 during its mounting.

DK 155891 BDK 155891 B

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Flangerne 14 er tilspidset i gelænderets 4 plan i nedad gående retning, og blokeringspartierne 17, 18 .har affas-ningerne svarende hertil. Herved opnås den virkning, at gelænderet 4 ved montering på stilladset 1 har et 5 større spillerum i den vandrette retning i gelænderets 4 plan end i gelænderets 4 brugsstilling. Gelænderet 4 kan således monteres hurtigt, samtidig med at det i sin brugsstilling er i det væsentlige vibrationsfrit-.The flanges 14 are tapered in the plane of the railing 4 in a downward direction, and the blocking portions 17, 18 have the bevels corresponding thereto. This results in the effect that the railing 4, when mounted on the scaffold 1, has a greater clearance in the horizontal direction in the plane of the railing 4 than in the position of use of the railing 4. The handrail 4 can thus be mounted quickly, while at the same time in its position of use it is substantially vibration-free.

Eftersom koblingsdelene 8, 9 er enklere at fremstille 10 end klodelene af den viste art, er alle klodelene i kablingsaggregatet fortrinsvis identiske, og koblingsdelene 8, 9 har de ovennævnte forskellige dimensioner. Ikke desto mindre kan koblingsaggregatet ifølge opfindelsen også konstrueres med forskellige klodele samt med forskel-15 lige koblingsdele.Since the coupling parts 8, 9 are easier to manufacture 10 than the claw parts of the type shown, all the claw parts in the cabling assembly are preferably identical and the coupling parts 8, 9 have the different dimensions mentioned above. Nevertheless, the coupling assembly according to the invention can also be constructed with different claw parts as well as with different clutch parts.

Claims

A coupling assembly for releasably coupling a structural member (4) to and between two posts and comprising three or four claw members (7) attached to the structural member (4) in the corners of a rectangle, and projections 5 (15, 16) which are mounted on the posts in appropriate locations, to cooperate with the claw portions, each having a jaw (10) with a passage opening for conducting a projection, the projections and jaws being designed such that upper claw portions on the structure can only be placed 10 above the upper projections in an inclined position where the plane of the rectangle through the globe forms a minimum or greater angle with the plane through the posts and the structural member is rotatable about a horizontal axis through the upper claw portions and projections between the inclined position with a minimum angle and a vertical position; each of which the lower claw portions may receive a lower projection, characterized in that each jaw (10) has a stop portion (11) in the plane through the claw portions (7) that each jaw (10) ) passage opening is formed at a distance 20 relative to the stop portion (11) of the jaw (10), that the jaw (10) seen in the vertical position of use of the structural member (4) has a space above the upper boundary of the passage opening, that the height of an upper projection (15) is greater than the height of the passage opening of the jaw (10) of the corresponding upper globe 25 (7), and that the distance between the upper boundaries of the jaws (10) in two superimposed claw portions (7) is less than the distance between the corresponding projections (15, 16) top edges. Coupling assembly according to claim 1, characterized in that the height of the lower projection (16) corresponds approximately to the height of the passage opening of the corresponding lower jaw (10) of the corresponding DK 155891 B 11. Coupling assembly according to claim 1 or 2, characterized in that on each side of a plane through the bell parts (7) and through their stop parts (11) a jaw (10) is formed with the respective stop parts (11).

Clutch assembly according to claim 1, 2 'or 3, characterized in that at the extremity of each projection (15, 16) at the edge of the corresponding claw member (7) there is a blocking portion (17, 18) extending 10 across the plane through the posts (2), that the passage opening of a jaw (10) is defined at the upper edge of a flange (14) and that each flange (14) has a cutout for partial penetration of the blocking portions (17, 18).

5. A coupling assembly according to claim 1, 2 or 3, characterized in that at the extremity of each projection (15, 16) at the edge opposite the edge of the corresponding globe (7) there is a blocking portion (17, 18) extending on across the plane through the posts (2), that the passage opening of a jaw 20 (10) is defined at the upper edge of a flange (14) and that each flange (14) of each stop portion (11) has a cutout for passing it corresponding blocking portion (17, 18).

Coupling assembly according to claim 4 or 5, characterized in that the dimension of each flange (14) in a plane parallel to the plane through the globe parts (7) is gradually reduced downwards. A coupling assembly according to claim 4, 5 or 6, characterized in that the blocking portion (17) is beveled and its thickness decreases upwards on the side of the corresponding flange (14). DK 155891 B 12

Coupling assembly according to any of the preceding claims, characterized in that the projections (15, 16) are formed on corresponding upper (8) and lower (9) coupling parts mounted on the posts (2).