DK151824B

DK151824B - LINKING TO LINKING SIDE SCANING PROCEDURES CONCERNING SIDE LOCALS IN A BUILDING LOCATION OR A SIMILAR BUILDING WORK.

Info

Publication number: DK151824B
Application number: DK261081AA
Authority: DK
Inventors: Harry Wallther
Original assignee: Wallther Eng Ab
Priority date: 1979-10-19
Filing date: 1981-06-15
Publication date: 1988-01-04
Also published as: AU539039B2; JPH0125862B2; SE423735B; HK105888A; DK261081A; GB2086522A; ES262253U; BR8009052A; IT8025448A0; NL189871C; FR2467940A1; AU6391880A; FR2467940B1; ES262253Y; SG65386G; FI65837C; DE3049971T1; FI813642L; MY8600156A; GB2086522B

Description

Den foreliggende opfindelse angår en kobling til sammenkobling af i sideretningen forløbende stilladselementer med søjler i et byggestillads eller tilsvarende bygningsværk og af den i indledningen til krav 1 angivne art.The present invention relates to a coupling for interconnecting lateral scaffolding elements with columns in a building scaffold or similar building work and of the kind specified in the preamble of claim 1.

Koblinger til byggestilladser findes i en mængde forskellige udførelsesformer. Således kendes fra GB-patentskrift 1.542.265 en kobling med et enkelt klemstykke, der fastklemmer den krogformede del på stilladselementet til indgrebsdelen og ikke til selve søjlen. Ved en perfekt dimensioneret konstruktion med små tolerancer kan man naturligvis dimensionere den krogformede del således, at den kommer til at ligge an mod søjlens frembringerflade, hvilket dog i praksis ville medføre urimeligt høje fremstillingsomkostninger. Dette lille spillerum vil naturligvis kunne opnås ved en given diameter for søjlen, hvorfor understøtningen således ikke opnås ved mindre diametre. En fuldstændig vridningsstiv kobling fås kun, når tolerancerne på det nærmeste er nul, hvilket i praksis aldrig kan opnås. Såfremt dette skulle være tilfældet, opstår der hyppigt vanskeligheder med montering og demontering på grund af utilsigtet fastklemning. Fra FR-patentskrift 1.261.335 kendes ligeledes en sådan kobling, hvor anpresning af den krogformede del mod søjlen sker ved hjælp af en langs søjlens frembringerflade i højderetningen forskydelig klembøsning, hvilken kobling har de samme mangler som den ovenfor beskrevne britiske konstruktion. DE-offentliggørelsesskrift 1.684.219 viser i princippet den samme fastklemningsfunktion som i de to ovenfor omtalte skrifter. I dette skrift vises der således et klemstykke i form af en kile, der er indrettet til at fastklemme indgrebsdelens væg mellem klemstykket og det i sideretningen forløbende stilladselements krogformede del. Heller ikke denne konstruktion bliver særlig vridningsstiv, da al belastning fra de på tværs rettede stilladselementer formidles til søjlen via indgrebsdelen. Af dette skrift fremgår det tydeligt, at der er et mellemrum mellem den krogformede del og søjlen, hvilket i praksis er nødvendigt, men som bevirker, at den krogformede del ikke støtter direkte mod søjlen, hvilket medfører, at det siderettede stilladselement ved belastning kun med besvær bevarer en forudbestemt vinkel i forhold til søjlen.Couplings for construction scaffolds are available in a variety of embodiments. Thus, from GB patent 1,542,265, a coupling with a single clamp is known, which clamps the hook-shaped part of the scaffold element to the engagement part and not to the column itself. Of course, with a perfectly dimensioned design with small tolerances, the hook-shaped part can be dimensioned so that it will abut the surface of the column, which in practice, however, would incur unreasonably high manufacturing costs. Of course, this small clearance can be achieved at a given diameter for the column, so support is not obtained at smaller diameters. A fully torsional rigid coupling is only obtained when the tolerances are almost zero, which in practice can never be achieved. Should this be the case, mounting and disassembly problems often arise due to accidental clamping. From FR patent 1,261,335, such a coupling is also known, in which pressing of the hook-shaped part against the column is effected by means of a clamping sleeve displaceable along the column, which has the same shortcomings as the British construction described above. DE Publication Publication No. 1,684,219 shows in principle the same jamming function as in the two above-mentioned writings. Thus, in this specification, a clamping piece is shown in the form of a wedge adapted to clamp the wall of the engagement part between the clamping piece and the hook-shaped part of the lateral scaffolding element. Also, this construction does not become particularly torsional rigid, as all load from the transversely directed scaffolding elements is conveyed to the column via the engagement member. From this document it is clear that there is a gap between the hook-shaped part and the column, which is necessary in practice, but which causes the hook-shaped part not to directly support the column, which means that the lateral scaffolding element is only loaded with trouble retains a predetermined angle to the column.

Det er den foreliggende opfindelses formål at eliminere de ovennævnte ulemper ved de kendte koblinger og anvise en kobling, hvor man både kan koble et tværgående stilladselement i en vilkårlig ønsket retning og kan frakoble et stilladselement ad gangen, uden at de øvrige stilladselementers låsning frigives, således som dette sker ved den fra FR-patentskrift 1.261.335 kendte teknik.It is an object of the present invention to eliminate the aforementioned disadvantages of the known couplings and to provide a coupling where one can both connect a transverse scaffold element in any desired direction and can disengage one scaffold element at a time without releasing the other scaffold elements, thus as is done by the technique known from FR patent 1,261,335.

Dette -formål tilgodeses ved, at den indledningsvist omtalte kobling er ejendommelig ved det i den kendetegnende del af krav 1 anførte. Den første klemdel er beregnet til i koblingens koblede tilstand at presses an imod søjlen, medens der i koblingen også indgår en mellem frigiven stilling og låsestilling omstillelig anden klemdel, der er indrettet til at frembringe den nævnte anpresning af den første klemdel og presning af stilladselementet i retning udad fra søjlen. Herved fastklemmes den krogformede del mod indgrebsdelens inderside. Væsentligt ifølge opfindelsen er det, at den nævnte første klemdel er beregnet til at presses an imod søjlen og ikke mod indgrebsdelen, medens den krogformede del ikke presses an mod søjlen, men mod indgrebsdelen, hvilket pres frembringes ved hjælp af den særskilte anden klemdel. Herved opnås en særdeles vridningsfast sammenkobling ved den direkte kobling med søjlen, og ikke som hidtil ifølge den fra DE-offentliggørelsesskrift 1.684.214 kendte teknik alene med indgrebsdelen, dvs. at vridningskræfterne formidles i det væsentlige via den første koblingsdel mellem de i sideretningen forløbende stilladselementer og søjlen. Denne egenskab er det lykkedes at kombinere uafhængigt af en nøjagtig overensstemmelse mellem afstanden mellem to søjlers kappeflader og de mellemliggende stilladselementers længde. Koblingen ifølge krav 1 har desuden klemflader, der virker som støtteflader, der ligger ovenfor og nedenfor indgrebsdelen, dvs. ovenfor henholdsvis nedenfor de siderettede stilladselementers længdeakse, hvilket giver en betragtelig forøget vridningsstivhed. Ifølge opfindelsen kan søjler bygges teleskopisk op på hinanden med partier af indbyrdes forskellige diametre, men med en og samme centrumsafstand for indgrebsdelens indadvendende væg.This object is met by the fact that the coupling mentioned above is peculiar to that of the characterizing part of claim 1. The first clamping part is intended to be pressed against the column in the coupled state, while the clutch also includes a second clamping switchable between released position and locking position adapted to produce said pressing of the first clamping part and pressing of the scaffolding element into the clutch. direction outward from the column. Hereby the hook-shaped part is clamped against the inside of the engagement part. Essentially, according to the invention, said first clamping part is intended to be pressed against the column and not against the engagement part, while the hook-shaped part is not pressed against the column but against the engagement part, which is generated by the separate second clamping part. Hereby a highly torsion-resistant coupling is obtained by the direct coupling with the column, and not as hitherto according to the technique known from DE-publication specification 1,684,214 only with the engagement part, ie. that the torsional forces are conveyed substantially via the first coupling part between the lateral scaffolding elements and the column. This property has managed to combine independently of an exact match between the distance between two pillar casing surfaces and the length of the intermediate scaffold elements. The coupling according to claim 1 furthermore has clamping surfaces which act as supporting surfaces which are above and below the engagement part, i.e. above and below, respectively, the longitudinal axis of the lateral scaffolding elements, which gives a considerably increased torsional stiffness. According to the invention, columns can be telescopically mounted on one another with portions of mutually different diameters, but with one and the same center distance of the inner wall of the engagement part.

Dette er muligt på grund af, at det ifølge opfindelsen kun er nødvendigt, at der foreligger overensstemmelse mellem på den ene side et i sideretningen forløbende stilladselements længde, dvs. afstanden mellem to krogformede dele i stilladselementets to ender, og på den anden side afstanden mellem den indadvendte væg i en indgrebsdel på en søjle og den modsvarende væg i en indgrebsdel på en anden søjle, hvorimellem stilladselementet er beregnet til at forløbe. Der foreligger således samme længde for samtlige stilladselementer i forskellige højdeniveauer, uanset at søjlerne har partier med forskellige diametre. Herigennem kan et fåtal forskellige standardlængder fremstilles og holdes på lager for at tilgodese behovet for forskellige kombinationer. Ved at den første klemdel er indrettet til at sættes an såvel ovenfor som nedenfor indgrebsdelen, opnår man en yderligere forøgelse af vrid-ningsstivheden ved, at den krogformede dels anpresning mod indgrebsdelens inderside kommer til at befinde sig mellem den første klemdels klemflader mod søjlen.This is possible because, according to the invention, it is only necessary that there is consistency between the length of a scaffolding element extending in the lateral direction, ie. the distance between two hook-shaped parts at the two ends of the scaffold element, and on the other hand the distance between the inwardly facing wall of an engagement part of a column and the corresponding wall of an engagement part of another column, between which the scaffolding element is intended to extend. Thus, the same length exists for all scaffold elements at different height levels, regardless of whether the columns have portions of different diameters. Hereby, a few different standard lengths can be manufactured and kept in stock to meet the need for different combinations. By the first clamping member being arranged to be applied both above and below the engagement part, a further increase of the torsional stiffness is achieved by the fact that the hook-shaped part is pressed against the inside of the engagement part between the clamping surfaces of the first clamping part against the column.

Ved i overensstemmelse med det i den kendetegnende del af krav 2 anførte at benytte en kile, der kan indføres i en tværgående slids, muliggøres, at den første klemdel kan presses an med store anligningskræfter mod søjlen og derved frembringe en særlig stor vridningsstivhed, uden at der kræves andre hjælpemidler end et enkelt slagværktøj eller en anden tungere genstand. Ved hensigtsmæssige valg af kilevinkel får man automatisk låsning, hvorved der ikke kræves nogen yderligere låsefunktion til at fastholde kilen i låsestilling.By using a wedge which can be inserted into a transverse slot according to the characterizing part of claim 2, it is possible that the first clamping part can be pressed against the column with great abutment forces, thereby producing a particularly high torsional rigidity without aids other than a single impact tool or other heavier object are required. When appropriate wedge angle selection is obtained, automatic locking is required, requiring no additional locking function to hold the wedge in locking position.

Det i den kendetegnende del af krav 3 anførte giver en enkel og stabil konstruktion ved, at hvert af de to sidestykker har de nævnte klemflader, hvilket giver en yderligere forbedret virdningsstivhed i visse retninger.The characterizing part of claim 3 provides a simple and stable construction in that each of the two side pieces has said clamping surfaces, which provides a further improved wear stiffness in certain directions.

Ved at vælge en excentrisk lejret enhed som den anden klemdel i overensstemmelse med det i den kendetegnende del af krav 4 anførte får man en pladsbesparende og let monterbar løsning.By choosing an eccentrically mounted unit as the second clamping part in accordance with the characterizing part of claim 4, a space-saving and easily mountable solution is obtained.

Opfindelsen beskrives nærmere nedenfor på grundlag af nogle udførelseseksempler under henvisning til den vedlagte tegning, hvor fig. 1 i perspektiv viser et sprængbillede af en kobling ifølge opfindelsen i en første udførelsesform, fig. 2 viser et delsnit af koblingen i sammenkoblet tilstand i en lidt ændret udførelsesform, fig. 3 viser koblingen ifølge fig. 2 i delvis frikoblet tilstand, fig. 4 viser ved et tværsnit gennem en i et byggestillads indgående søjle koblingen som vist i fig. 2 og 3, fig. 5 viser koblingen ifølge opfindelsen i en yderligere modificeret udførelsesform, og fig. 6 viser eksempler på et byggestillads forsynet med koblingen ifølge opfindelsen.The invention will be further described below on the basis of some exemplary embodiments with reference to the accompanying drawing, in which fig. 1 is a perspective view of an exploded view of a coupling according to the invention in a first embodiment; 2 shows a partial section of the coupling in a coupled state in a slightly changed embodiment; FIG. 3 shows the coupling according to FIG. 2 in the partially decoupled state; FIG. 4 is a cross-sectional view of the coupling shown in FIG. 2 and 3, FIG. 5 shows the coupling according to the invention in a further modified embodiment, and fig. 6 shows examples of a construction scaffold provided with the coupling according to the invention.

Koblingens opbygning fremgår af udførelsesformen ifølge fig. 1, der vises i sprængbillede. Af figuren fremgår, at koblingen 1 ifølge opfindelsen har en indgrebsdel, i det viste eksempel udført som en i det væsentlige skålformet opadtil åben indgrebsdel 2, der er .fastgjort på en søjl^ 3,der indgår i et byggestillads eller tilsvarende stativ. Indqrebsde-len 2 strækker sig rundt om søjlens 3 hele omkreds og danner et i det væsentlige rotationssymmetrisk legeme, der afgrænser et rum 4 mellem søjlens cylinderkappeformede væg 5 og den skålformede del 2!s konkave væg 6 med f.eks. form som en del af en kugleskal. I det viste eksempel er den skålformede del fastsyejst til søjlen og har mellem svejsestederne 7 en afløbsåbning 8 for udløb af vand, snavs med videre. Disse afløbsåbninger 8 kan også benyttes som rensehul-ler, hvorved større genstande nemt kan pilles ud ved hjælp af en skruetrækker eller et tilsvarende værktøj, der føres ind gennem åbningerne franeden. Koblingen 1 ifølge opfindelsen har endvidere en krogformet del 9, der rager ned fra en endepart 10 af et stilladselement 11. Stilladselementet 11 udgøres f.eks. af en langstrakt vandret del, der indgår i et byggestillads 12, der vises ved et eksempel i fig. 6.The structure of the coupling is shown in the embodiment according to FIG. 1, shown in exploded view. It can be seen from the figure that the coupling 1 according to the invention has an engagement part, in the example shown, made as a substantially cup-shaped upwardly open engagement part 2, which is attached to a column 3 which is part of a construction scaffold or similar stand. The engaging portion 2 extends around the entire circumference of the column 3 to form a substantially rotationally symmetrical body defining a space 4 between the barrel-shaped wall 5 of the column and the cup-shaped wall 2 of the cup-shaped portion 6, e.g. shape as part of a ball shell. In the example shown, the cup-shaped portion is fixed to the column and has between the welding points 7 a drain opening 8 for the discharge of water, dirt, etc.. These drain openings 8 can also be used as cleaning holes, whereby larger objects can be easily peeled out by means of a screwdriver or similar tool which is inserted through the openings from below. The coupling 1 according to the invention further has a hook-shaped part 9 which projects down from an end part 10 of a scaffolding element 11. The scaffolding element 11, for example, is formed. of an elongated horizontal portion forming part of a building scaffold 12 shown by an example in FIG. 6th

Den krogformede del har dels en flade 12, hvis form i det væsentlige er tilpasset formen for søjlen 3’s yæg 5, og dels en fra den nævnte flade 12 vendt flade 13, hyis form i det væsentlige er tilpasset til indgrebsdelen 2's indre væa 6. I koblingen 1 indgår endvidere en første klemdel 14, der er forskydelig hen ad stilladselementets 11 endeparti 10 mellem den krogformede del 9 og stilladselementets hoveddel, der udgøres af et langstrakt rørprofil 15, hvoraf der kun vises en part i fig. 1, og i hvilket endeparten 10 rager et stykke ind. Rørprofilet 15 er f.eks. presset på endeparten 10 eller fastsvejst til dette. Den første klemdel 14 har i det væsentlige to sidestykker 16 og to tværstykker 17, 18. Sidestykkerne 16 har hver sin udtagning 19, beregnet til at optage indgrebsdelen 2 i monteret tilstand og hver af de to klemflader 20, 21, der er udformet til at ligge an imod søjlen 3’s væg 5. I koblingen 1 indgår endvidere en anden klemdel 22, der i det viste eksempel har form som en kile, der er beregnet til at indføres i en tværrettet gennemgående slids 23 i endepartiet 10, der f.eks. er udført i et massivt metalmateriale, f.eks. stål. Kilen 22 har to i tværretning nedad i forhold til hinanden konvergerende kanter 24, 25, hvoraf den ene kant 24 er beregnet til at samvirke med tværstykkerne 17, 18, og den anden kant 25 er beregnet til at samvirke med en kantflade 27 (se fig. 2 og 3) i slidsen 23 på en måde, der beskrives nærmere nedenfor.The hook-shaped part has a surface 12, the shape of which is substantially adapted to the shape of the egg 5 of the column 3, and partly a surface 13 facing away from said surface 12, the shape of which is substantially adapted to the inner wall 6. of the engagement part 2. the coupling 1 further includes a first clamping part 14 which is displaceable along the end portion 10 of the scaffolding element 11 between the hook-shaped part 9 and the main part of the scaffolding element, which is constituted by an elongated pipe profile 15, of which only one part of FIG. 1, and in which the end portion 10 projects into a piece. The pipe profile 15 is e.g. pressed on the end portion 10 or welded thereto. The first clamping member 14 has essentially two side members 16 and two cross members 17, 18. The side members 16 each have their respective recesses 19, designed to receive the engaging member 2 in the mounted state and each of the two clamping faces 20, 21, designed to abut against wall 5 of column 3. Coupling 1 also includes another clamping portion 22, which in the example shown has the shape of a wedge, which is intended to be inserted into a transverse through slot 23 in the end portion 10, e.g. is made of a solid metal material, e.g. steel. The wedge 22 has two transversely downwardly converging edges 24, 25, one edge 24 of which is intended to cooperate with the transverse pieces 17, 18, and the other edge 25 intended to cooperate with an edge surface 27 (see FIG. 2 and 3) in slot 23 in a manner described below.

Af fig. 2 fremgår i større detalje, hvorledes de forskellige dele er beregnet til at samvirke med hinanden i koblingen li ifølge opfindelsen i dens sammenkoblede tilstand. Udførelsesformen ifølge fig. 2, 3 og 4 afviger blot fra udførelsesformen l,for så vidt som kilen 22 har to siderettede tappe 26, der rager ud i sideretningen på begge sider af kilen 22 og derved danner stopelementer, der kommer til anslag mod endepartens 10 underside og derved forhindrer, at ki- len 22 helt kan udtages af slidsen 23. Derved opnås en øget sikkerhed ved koblingen ifølge opfindelsen. Kilens øvre endestilling fremgår af fig. 3. Koblingens funktion er således i sin sammenkoblede tilstand helt af samme udførelsesform ifølge fig. 1 og udførelsesformen ifølge fig. 2, 3 og 4, medens de indgående deles stilling afviger noget ved sammenkobling henholdsyis udkobling.In FIG. 2 shows in greater detail how the various parts are intended to cooperate with each other in the coupling 1 according to the invention in its coupled state. The embodiment of FIG. 2, 3 and 4 merely deviate from the embodiment 1 in that the wedge 22 has two lateral pins 26 projecting in the lateral direction on both sides of the wedge 22, thereby forming stop elements which strike against the underside of the end portion 10 thereby preventing that the wedge 22 can be completely removed from the slot 23. Thereby an increased safety is achieved by the coupling according to the invention. The upper end position of the wedge is shown in fig. 3. The function of the coupling is thus in its coupled state entirely of the same embodiment according to FIG. 1 and the embodiment of FIG. 2, 3 and 4, while the position of the incoming parts differs somewhat when interconnecting or disengaging.

Ved helt udkoblede dele ifølge fig. 1 er således kilen 22 helt fjernet, hvorved klemdelen 14 kan forskydes i siden i retning fra den krogformede del 12. Når således et stilladselement 11, f.eks. en langstrakt del af et byggestillads, skal sammenkobles med en søjle 3, kroges den krogformede del 9 i indgrebsdelen 2, hvorefter klemdelen 14 skydes frem således, at dens klemflader 20, 21 sættes an imod søjlen , 3’s væg 5. Derved befinder tværstykkerne 17, 18 sig i en sådan stilling, at hoveddelen af slidsen 23 befinder sig uden for tværstykkerne. Herved føres kilen 22 ned i slidsen 23 og slås ned ved hjælp af et hensigtsmæssigt værktøj, f.eks. en hammer, muggert eller lignende, hvorved klemdelen ved kilen 22's form vil blive presset med sine klemflader 20, 21 mod søjlen 3's væg 5, nærmere bestemt ved, at kilen 22's kant 24 presses imod tværstykkerne 17, 18, og kanten 25 presses mod den nævnte kantflade i slidsen 22. Herved presses samtidigt den krogformede del 9 med sin konvekse flade 13 an imod indersiden af .indgrebsdelen 2. For at opnå fla de anlæg kan slidsen med fordel, i det mindste i den sidstnævnte kantflade, have en skråstillet flade, der modsvarer den nævnte kant 25's skråstilling i anordningens sammenkoblede tilstand. Dette ses bedst i fig. 2, der viser kilen 22's anlæg mod tværstykkerne 17, 18 og dens stilling i slidsen 23.With fully disengaged parts according to FIG. 1, the wedge 22 is thus completely removed, whereby the clamping part 14 can be displaced laterally in the direction from the hook-shaped part 12. Thus, when a scaffolding element 11, e.g. an elongate portion of a building scaffold must be coupled to a column 3, the hook-shaped portion 9 of the engagement portion 2 is hooked, and then the clamping portion 14 is projected so that its clamping surfaces 20, 21 are engaged against the column, wall 3, thereby the crosspieces 17, 18 in such a position that the main part of the slot 23 is outside the crosspieces. Hereby, the wedge 22 is brought down into the slot 23 and knocked down by a suitable tool, e.g. a hammer, mugged or the like, whereby the clamping portion of the wedge 22's shape will be pressed with its clamping faces 20, 21 against the wall 5 of the column 3, in particular by pressing the edge 24 of the wedge 22 against the crosspieces 17, 18 and the edge 25 being pressed against it. said edge surface in the slot 22. At the same time, the hook-shaped part 9 with its convex surface 13 is pressed against the inside of the engagement part 2. In order to achieve these systems, the slot may advantageously have, at least in the latter edge surface, an inclined surface. corresponding to the inclined position of said edge 25 in the coupled state of the device. This is best seen in FIG. 2, showing the abutment of the wedge 22 against the transverse pieces 17, 18 and its position in the slot 23.

I koblingens sammenkoblede tilstand opnås en meget stiv kobling ved, at ikke blot radialt rettede eller aksialt rettede kræfter i forhold til søjlen optages, men også i høj grad brudkræfter, der har en tendens til at dreje det tværgående stilladselement 11 til andre vinkelstillinger i forhold til søjlen. Udkobling af stilladselementet 11 fra søjlen sker principielt på samme måde som sammenkoblingen, men i omvendt rækkefølge og med de omvendte bevægelser. Således slås kilen ud af sin fuldstændigt indførte stilling, hvorved klemvirkning mellem klemdelen 14 og den krogformede del 9 ophører. Når kilen 22 i den i fig. 1 viste udførelsesform helt er fjernet, kan klemdelen 14 føres tilbage i retning mod rørprofilet 15, hvorefter stilladselementet 11 med den krogformede del 9 kan løftes ud af indqrebsdelen 2.In the coupled state of the coupling, a very rigid coupling is obtained by not only absorbing radially directed or axially directed forces relative to the column, but also greatly breaking forces which tend to rotate the transverse scaffold member 11 to other angular positions relative to the column. Disconnection of the scaffold element 11 from the column is done in principle in the same way as the coupling, but in the reverse order and with the reverse movements. Thus, the wedge is knocked out of its fully inserted position whereby the clamping action between the clamping part 14 and the hook-shaped part 9 ceases. When the wedge 22 in the embodiment of FIG. 1 is completely removed, the clamping member 14 can be moved back towards the pipe profile 15, after which the scaffolding element 11 with the hook-shaped part 9 can be lifted out of the engagement part 2.

Sammenkobling ved hjælp af koblingen i den i fig. 2, 3 og 4 viste udførelsesform sker således principielt på samme måde som ved udførelsesformen ifølge fig. 1, hvorved dog kilen, jf. ovenfor, i udgangsstillingen kun delvis er løftet op af slidsen 23, hvilket medfører, at klemdelen 14 i hovedsagen skal holdes drejet på den i fig. 3 viste måde for at tillade, at den krogformede del 9 kroges i den skålformede del 2. Når dette er sket, sættes klemdelen 14 an på samme måde som beskrevet under henvisning til fig. 1 med sine klemflader 20, 21 mod søjlen 3, hvorefter kilen 22 kan drives ned til den i fig. 2 viste stilling, hvilket også stemmer overens med det under henvisning til fig. 1 beskrevne.Coupling by means of the coupling in the embodiment shown in FIG. Thus, the embodiment shown in Figures 2, 3 and 4 takes place in principle in the same way as in the embodiment according to FIG. 1, whereby, however, the wedge, cf. above, in the initial position is only partially lifted up by the slot 23, which means that the clamping part 14 in the main case must be kept rotated on the one in fig. 3 to allow the hook-shaped portion 9 to be hooked into the bowl-shaped portion 2. When this is done, the clip portion 14 is applied in the same manner as described with reference to FIG. 1 with its clamping faces 20, 21 towards the column 3, after which the wedge 22 can be driven down to the one shown in FIG. 2, which also corresponds to the position shown in FIG. 1.

I fig. 4 vises med et eksempel koblingen ifølge opfindelsen med fire stilladselementer 11 tilsluttet til søjlen 4 i på hinanden vinkelrette retninger. Ifølge opfindelsen kan dog fuldstændigt vilkårlige retninger vælges for stilladselementerne 11, dels i forhold til hinanden og dels i forhold til en given forudbestemt stilling for søjlen 3. Af fig. 4 fremgår, at klemfladerne 20, 21 i det viste eksempel ikke er affasede for tilpasning til søjlens væg, hvilket giver et særligt stabilt og drejningsfast kantindgreb ved kantanlæg mellem klemfladerne 20, 21 og søjlens væg 5. I praksis sker herved en vis lille deformation i væggen 5, hvilket giver yderligere forbedret indgreb.In FIG. 4 is an example of the coupling according to the invention with four scaffolding elements 11 connected to the column 4 in mutually perpendicular directions. However, according to the invention, completely arbitrary directions can be selected for the scaffolding elements 11, partly in relation to each other and partly in relation to a given predetermined position for the column 3. From fig. 4 shows that in the example shown, the clamping surfaces 20, 21 are not beveled for adaptation to the wall of the column, which provides a particularly stable and pivotal edge engagement at the edge abutment between the clamping surfaces 20, 21 and the wall of the column 5. In practice, this causes some slight deformation in the wall. the wall 5, which provides further improved engagement.

Ifølge opfindelsen kan således sammenkobling og frakobling ske individuelt for hvert særskilt stilladselement 11 i forhold til søjlen 3. Ved det i fig. 2, 3 og 4 viste eksempel slås ved frakobling af et af stilladselementerne 11 kilen 22 i retning opad til den i fig. 3 viste frigivende stilling, hvorefter klemdelen 14 kan svinges ud, og stilladselementet 11 kan med sin krogformede del 9 kroges ud af den skålformede opadtil åbne indgrebsdel 2. Herved kan stilladselementet 11 fjernes fra søjlen 3.Thus, according to the invention, coupling and disconnection can be done individually for each separate scaffold element 11 relative to column 3. In the embodiment shown in FIG. 2, 3 and 4 are struck by disengaging one of the scaffolding elements 11 the wedge 22 in an upward direction to that of FIG. 3, after which the clamping member 14 can be swung out, and the scaffolding element 11 can be hooked out of the cup-shaped upwardly open engagement part with its hook-shaped part 9, thereby removing the scaffolding element 11 from the column 3.

Ved den i fig. 5 viste udførelsesform er klemdelen 14 ændret nogetvog har i denne forbindelse en øvre og nedre styrevæg 28, 29 på begge sider af stilladselementets 11 endepart 10, Disse styrevægge 28, 29 udgøres f.eks. af tværstillede metalstykker, der strækker sig fra det ene gavlstykke til det andet. Den anden klemdel udgøres i stedet for af en kile, i dette eksempel af en på en excentrisk aksel 30 svingbart lejret arm 31 med en klemflade 32, der er indrettet til at sættes an imod gavlstykkets 16 kantflade 33. Af hensyn til symmetrisk kraftpåvirkning er der hensigtsmæssigt anordnet en arm 31 på hver side af endeparten 10, således at hvert sidestykke 16 samvirker med en tilhørende arm. Akselen 30 er således forankret i stilladselementet 11 og strækker sig f.eks. gennem en boring i dette. I fig. 5 vises koblingen i sammenkoblet tilstand, hvorved således klemdelen 14 presses an imod søjlen på i princip samme måde som i det ovenfor beskrevne eksempel, hvorved klemvirkningen frembringes ved hjælp af armen 31"s lejring i stilladselementet 11's endepart 10 og med sin klemflade 32 pressesjtjod. den tilhørende kantflade 33 af hver enkelt gavlstykke 16 i klemdelen 14.In the embodiment shown in FIG. 5, the clamping part 14 is changed somewhat and in this connection has an upper and lower guide wall 28, 29 on both sides of the end part 10 of the scaffolding element 11. of transverse pieces of metal extending from one end of the end to the other. The second clamping member is instead of a wedge, in this example, an arm 31 pivotally mounted on an eccentric shaft 30 with a clamping surface 32 adapted to engage the edge surface of the end piece 16 for reasons of symmetrical force. suitably arranged an arm 31 on each side of the end portion 10 so that each side piece 16 cooperates with an associated arm. The shaft 30 is thus anchored in the scaffold element 11 and extends e.g. through a bore in this. In FIG. 5, the coupling is shown in the coupled state, thus pressing the clamping member 14 against the column in substantially the same manner as in the example described above, whereby the clamping action is produced by the arm 31 "bearing in the end part 10 of the scaffolding element 11 and with its clamping surface 32 pressing rod. the associated edge surface 33 of each end piece 16 in the clamping portion 14.

I denne sammenkoblede tilstand beskyttes armen 31 mod utilsigtet manøvrering ved hjælp af en beskyttelsesplade 34, der er anbragt på endeparten 101 s overside og strækker sig i sideretningen noget uden for dets bredde til at dække armen 31 set fraoven. Ved frakobling svinges armen 31 eller armene ned omkring deres aksel 30, hvorved der ved hjælp af den successivt formindskede radius i forhold til den som svingningscentrum tjenende aksel 30 sker en frigivelse af klemdelen 14, der kan føres i retning bagud, således at stilladselementet 11 kan kroges fra søjlen 3.In this interconnected condition, the arm 31 is protected against unintentional maneuvering by means of a protective plate 34 which is located on the upper side of the end portion 101 and extends laterally slightly beyond its width to cover the arm 31 seen from above. Upon disengagement, the arm 31 or the arms are pivoted down around their shaft 30, whereby, by means of the successively diminished radius relative to the shaft center serving as a pivot center, a clamping member 14 can be released which can be moved in the rearward direction so that the scaffolding element 11 can hooked from the column 3.

I fig. 6 ses et eksempel på et byggestillads 12 med koblingen 1 ifølge opfindelsen. Derved kan søjlerne 3 således henad deres længde have. indarebsdele 2 oå jævnt fordelt afstand fra hinanden, medens de tværgående stilladselementer 11 ved hver enkelt af deres to ender har de nævnte endeparter 10 med den krogformede del 9. Ved hjælp af den stivhed, der opnås ved hjælp af koblingen ifølge opfindelsen, kan et sådan byggestativ f.eks. løftes med en løftekran og flyttes under bibeholdelse af sin korrekte form. F.eks. kan et byggestillads, f.eks. i form af et hejsetårn, bygges liggende og siden rejses ved hjælp af en kran til oprejst brugsstilling.In FIG. 6 shows an example of a construction scaffold 12 with the coupling 1 according to the invention. Thus, the columns 3 can thus extend their length. inner parts 2 and evenly spaced apart, while the transverse scaffolding elements 11 at each of their two ends have said end portions 10 with the hook-shaped part 9. By means of the stiffness obtained by means of the coupling according to the invention, such building rack e.g. is lifted with a lifting crane and moved while maintaining its correct shape. Eg. a building scaffold, e.g. in the form of a hoist tower, the landscape is built and the side is erected by means of a crane for upright use.

Væsentligt for den foreliggende opfindelse er, at det liggende stilladselements ende, dvs. den krogformede del 9, ikke presses an mod søjlen til anlæg mod denne, men i stedet i retning væk fra søjlen, mod den skålformede del 2's væg 6. Deryed kan man opretholde en og samme centrumafstand mellem søjlerne ved søjler med forskellig diameter, men med en og samme afstand mellem akselcentrum og $ indgrebsdelens væg 6. Dette er særdeles fordelagtigt, når et byggestillads bygges op med teleskopiske søjler, dvs., hvor øvre søjler med en mindre dimension sammekobles teleskopisk med nedre søjler med større dimension.Essential to the present invention is that the end of the scaffolding element, i.e. the hook-shaped part 9, is not pressed against the column for abutment against it, but instead in the direction away from the column, against the wall of the bowl-shaped part 2. Thereby one and the same center distance between the columns can be maintained for columns of different diameters, but with one and the same distance between the shaft center and the wall of the engagement portion 6. This is particularly advantageous when a building scaffold is built up with telescopic columns, i.e., where upper columns of smaller dimension are telescopically interconnected with lower columns of larger dimension.

Opfindelsen er ikke begrænset til det ovenfor beskrevne og på tegningen viste udførelseseksempel, men kan varieres inden for de efterfølgende patentkravs ramme. F.eks. kan koblingen ifølge opfindelsen tillempes til andre stilladstyper end rene byggestilladser, f.eks. såkaldte formstativer til bæring af støbeforme ved støberiarbejder. Endvidere kan den skålformede del have en anden form, f.eks. udføres med en plan kappevæg og plan bund. Bunden kan i større eller mindre grad være gennembrudt, f.eks. kan bunden være erstattet med afstandsholdeorganer, der bærer væggen 6.The invention is not limited to the exemplary embodiment described above and shown in the drawing, but may be varied within the scope of the following claims. Eg. For example, the coupling according to the invention can be applied to scaffolding types other than pure construction scaffolding, e.g. so-called mold stands for carrying molds in foundry work. Furthermore, the bowl-shaped portion may have a different shape, e.g. is done with a flat casing wall and flat bottom. The bottom may be more or less pierced, e.g. For example, the bottom may be replaced by spacer means supporting the wall 6.

Det er også tænkeligt, at indurebsdelen erstattes af flere bøjler, der bestemmer det maksimale antal stilladselementer, således at den på afstand fra søjlen sig strækkende kontinuerlige væg erstattes af flere separate vægge, en for hver bøjle. Bøjlerne kan f.eks. udformes som U-jern. Ligeså kan såvel den krogformede del 9 som klemdelen 14 have en helt anden form. De fire klemflader kan herved væreIt is also conceivable that the interior part be replaced by a plurality of brackets which determine the maximum number of scaffolding elements such that the continuous wall extending at a distance from the column is replaced by several separate walls, one for each bracket. The shackles can e.g. is designed as U-iron. Likewise, both the hook-shaped portion 9 and the clip portion 14 may have a completely different shape. The four clamping surfaces may hereby be

Claims

A coupling for coupling laterally extending scaffolding elements (11) with columns of a building scaffold (12) or a corresponding rack, each coupling including one connected to the column (3), at least in the upwardly open engagement part (2) with a wall (6) spaced apart from the column defining a space (4) located between the column and the wall, a hook-shaped part (9) disposed at least at one end of said scaffold element (11), engaging the engagement member, and a first clamping member (14) slidable longitudinally of the scaffolding member, which exhibits one or more interconnected clamping faces (20, 21) directed to the column (3), characterized in that the first clamping member ( 14), which is preferably substantially hanger-shaped, arranged to abut against at least one of its clamping faces (20, 21), and that the coupling also includes a second adjustable position between the released position and the locking position. limb member (22, 31) adapted to be forcefully locked in locking position between the first clamping member and the scaffolding member in such a way that the clamping member is pressed in a direction towards the column (3) and the scaffolding member (11) is pressed outwardly from the column and thereby being clamped by the hook-shaped portion (9) of the engagement portion (2), and said first clamping portion (14) having upper and lower clamping faces (20, 21), the upper clamping surfaces being adapted to engage the column (3) wall (5) above the engagement part (2), while the lower clamping faces (21) are arranged to engage the wall of the column below the engagement part (2).

A coupling according to claim 1, characterized in that the scaffolding element (11). at least at that end has a transverse slot (23), said second clamping portion (22) being constituted by a wedge adapted to be inserted into the slot in the coupled state and thereby being pressed against at least one portion (17). 18) of said first clamping member (14) such that it is pressed in the direction towards the column (3) and the styling element is pressed in the opposite direction.

Coupling according to one of the preceding claims, characterized in that said first clamping part (14) is made up of two side pieces (16) having said clamping faces (20, 21. and located on either side of an end portion). (10) of the scaffold element (11), and upper and lower cross sections (17, 18) extending between the two side pieces (16) above and below the end portion (10), respectively, according to one of claims I-3, characterized in the said second clamping portion (31) being constituted by an eccentrically-mounted unit around a shaft (30) in the scaffolding element (11) with an arcuate clamping surface (32) adapted to cooperate with an associated edge surface (33) on it. said first clamping member (14) so that it is pressed by the clamping surface (32) into the locking position of said second clamping member, but can be displaced downwardly by a pivotal displacement about the shaft (30) for releasing said first clamping member (14) .