DK165796B

DK165796B - Fastening grip

Info

Publication number: DK165796B
Application number: DK249390A
Authority: DK
Inventors: Kurt Bo Jensen
Original assignee: Herlev Stilladser Aps
Priority date: 1990-10-16
Filing date: 1990-10-16
Publication date: 1993-01-18
Also published as: DK249390D0; DK165796C; DK249390A

Description

iin

DK 165796 BDK 165796 B

Den foreliggende opfindelse angår et fastgøringsgreb omfattende en klo til indgribning omkring et rør eller en stang og en fjederpåvirket lukkearm til i en lukkestilling i det mindste delvist at spærre kloens åbning og i en åben stilling mod fjedervirkningen at 5 holde denne åben.The present invention relates to a fastening handle comprising a claw for engaging around a pipe or a rod and a spring-actuated closing arm for in a closing position at least partially locking the opening of the claw and in an open position against the spring action to keep it open.

Fastgøringsgreb af denne art anvendes bl.a. til stilladser og overdækninger, som skal monteres og demonteres mange gange. De er fastgjort til enden af rør, profilstænger o.lign., som anvendes i 10 stilladser eller bærer overdæknings- eller tagplader.Fastening handles of this kind are used i.a. for scaffolding and roofs, which must be mounted and dismantled many times. They are attached to the end of pipes, profile bars, etc., which are used in 10 scaffolding or carry cover or roofing sheets.

Grebet er ofte et snapgreb, som umiddelbart kan trykkes ned over et rør eller en stang, idet lukkearmen herved skubbes tilbage, indtil røret kommer i indgreb i kloen, hvorefter lukkearmen selv går 15 tilbage til spærrestillingen omkring røret. Åbningen af grebet sker ved manuel påvirkning på lukkearmen, så at denne skydes væk, og grebet åbnes for derefter at løftes fri af røret eller stangen.The handle is often a snap handle which can be immediately pressed down over a pipe or a rod, the closing arm being pushed back until the pipe engages the claw, after which the closing arm itself returns to the locking position around the pipe. The handle is opened by manual actuation on the closing arm, so that it is pushed away, and the handle is opened and then lifted free of the tube or rod.

Mange stilladskomponenter og specielt overdæknings- eller tagplader 20 er forsynet med flere af de omhandlede greb, og for at kunne fjerne dem er det nødvendigt, at der er adgang til grebene. Dette er ved stilladsarbejde og især ved arbejde med overdækningsplader vanskeligt og risikofyldt, da der ofte arbejdes i stor, fri højde uden nogen gangbro eller anden understøtning for montøren under overdæk-25 ningen. Montøren er derfor for at få adgang til grebene henvist til at klatre på de underliggende stilladsdele.Many scaffolding components and especially roofing or roofing sheets 20 are provided with several of the handles in question, and in order to be able to remove them it is necessary that there is access to the handles. This is difficult and risky when working with scaffolding and especially when working with cover plates, as work is often done at a large, free height without any walkway or other support for the fitter under the cover. The fitter is therefore, in order to gain access to the handles, to climb on the underlying scaffolding parts.

Ligesom traditionelle tagplader skal overdækningsplader til stilladser nødvendigvis lægges med en vis indbyrdes overlapning for at 30 undgå utæthed af den samlede overdækning, og dette bevirker, at fastgøringsgrebene i det mindste ved den ene ende af overdækningspladerne befinder sig et stykke fra pladens kant og således helt utilgængelige ovenfra, hvorfor montøren er henvist til det ovennævnte ubekvemme og risikofyldte arbejde under overdækningen.Like traditional roofing sheets, roofing sheets for scaffolding must necessarily be laid with a certain mutual overlap in order to avoid leakage of the overall roofing, and this means that the fastening handles are located at least at one end of the roofing sheets some distance from the edge of the slab and thus completely inaccessible. from above, which is why the fitter is referred to the above inconvenient and risky work under the canopy.

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Formålet med opfindelsen er at undgå de angivne ulemper, og ifølge opfindelsen opnås dette ved, at et trækorgan i form af en wire er forbundet med lukkearmen, således at denne ved et træk kan føres fra lukket til åben stilling, at grebet har et låseorgan, som erThe object of the invention is to avoid the stated disadvantages, and according to the invention this is achieved in that a pulling means in the form of a wire is connected to the closing arm, so that it can be moved from the closed to open position by a pull, that the handle has a locking means which is

DK 165796BDK 165796B

2 indrettet til automatisk at kunne fastholde lukkearmen i dennes åbne stilling, at lukkearmen er svingeligt lejret i kloen, og at wiren er fastgjort til lukkearmen på et sted i afstand fra dennes lejringsakse.2 arranged to be able to automatically hold the closing arm in its open position, that the closing arm is pivotally mounted in the claw, and that the wire is attached to the closing arm at a place at a distance from its bearing axis.

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Montøren kan således, medens han befinder sig over overdækningen, ved pålægningen af piaderne· sørge for', at wiren strækker sig ud over den overlappede plade uden for kanten af den overlappende plade, og når pladen igen skal demonteres, kan montøren, medens han befinder 10 sig over overdækningen, ved et træk i wiren udløse fastgøringsgrebet, som derpå kan fastholdes i udløst eller åben stilling af det angivne låseorgan, hvorefter montøren kan fjerne overdækningspladen. Det vil forstås, at den angivne udformning af fastgøringsgrebet foruden at eliminere behovet for det risikofyldte 15 arbejde under overdækningen desuden medfører den yderligere væsentlige fordel, at en enkelt montør både kan udføre udløsningen eller åbningen af alle fastgøringsgrebene og tillige fjernelsen af overdækningspladen, hvorimod der hidtil har skullet være mindst to montører til stede for henholdsvis at udløse grebene og fjerne 20 pladen. Wiren kan let finde plads mellem de indbyrdes overlappende overdækningspladedele og kan lægges ganske ukritisk ved pladernes montering, idet der kun skal sørges for, at wireenden strækker sig uden for den pågældende plade.The fitter can thus, while he is over the cover, when laying the piadas · make sure 'that the wire extends beyond the overlapped plate outside the edge of the overlapping plate, and when the plate is to be dismantled again, the fitter, while he is 10 over the cover, by a pull in the wire release the fastening handle, which can then be held in released or open position by the indicated locking member, after which the fitter can remove the cover plate. It will be appreciated that the stated design of the fastening handle in addition to eliminating the need for the risky work under the cover also entails the additional significant advantage that a single fitter can perform both the release or opening of all the fastening handles and also the removal of the cover plate. at least two fitters must have been present to release the handles and remove the plate, respectively. The wire can easily find space between the mutually overlapping cover plate parts and can be laid quite uncritically when mounting the plates, as only the wire end has to be extended outside the plate in question.

25 I en fordelagtig udførelsesform ifølge opfindelsen er låseorganet en i kloen monteret fjederpåvirket tap, og lukkearmen har en åbning, som tappen kan indgribe i i lukkearmens åbne stilling.In an advantageous embodiment according to the invention, the locking means is a spring-actuated pin mounted in the claw, and the closing arm has an opening in which the pin can engage in the open position of the closing arm.

I en yderligere udførelsesform er låseorganet fjederpåvirket mod sin 30 indgrebsstilling i lukkearmen. Når lukkearmen føres til sin åbne stilling, vil den dermed automatisk blive fastholdt deri.In a further embodiment, the locking means is spring-actuated against its engaging position in the closing arm. When the closing arm is moved to its open position, it will thus automatically be held therein.

Ved en yderligere udførelsesform ifølge opfindelsen er låseorganet fjederpåvirket ud af sin indgrebsstilling i lukkearmen. I denne 35 sidstnævnte udførelsesform kan fjederpåvirkningen på tappen have en sådan størrelse, at tappen kan fastholdes i åbningen i lukkearmen af den af fjederpåvirkningen på lukkearmen frembragte friktion. Ved en påvirkning udefra på lukkearmen udløses låseorganet derved umiddelbart.In a further embodiment according to the invention, the locking means is spring-actuated out of its engaging position in the closing arm. In this latter embodiment, the spring action on the pin can be of such a size that the pin can be held in the opening in the closing arm by the friction generated by the spring action on the closing arm. In the event of an external influence on the closing arm, the locking means is thereby released immediately.

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33

Opfindelsen skal herefter forklares nærmere under henvisning til tegningen, hvor fig. 1 viser et billede, delvist i snit, af en på et bærerør monte-5 ret udførelsesform for fastgøringsgrebet ifølge opfindelsen med lukkearmen i spærresti 11ing, fig. 2 et tilsvarende billede, hvor lukkearmen er vist i åben stilling, 10 fig. 3 et billede ovenfra af fastgøringsgrebet i den i fig. 1 viste stilling, og fig. 4 et billede ovenfra af fastgøringsgrebet i den i fig. 2 viste 15 stilling.The invention will now be explained in more detail with reference to the drawing, in which fig. 1 shows a view, partly in section, of an embodiment of the fastening handle according to the invention mounted on a support tube with the closing arm in the locking path 11ing, fig. 2 is a corresponding view, in which the closing arm is shown in the open position, FIG. 3 is a top view of the fastening handle of the device shown in FIG. 1, and FIG. 4 is a top view of the fastening handle of the device shown in FIG. 2 showed 15 position.

Pa tegningen betegner 1 et rør eller en profilstang, f.eks. til understøtning af en dertil fastgjort, ikke vist overdækningsplade, som skal fastgøres oven på et stillads. Til røret 1 er der fastgjort 20 et fastgøringsgreb, der generelt er betegnet med 2, og som har en klo 3 med en udragende del 4, som er indført i røret eller stangen 1 og sikkert fastgjort deri f.eks. med en gennemgående bolt 5. Kloen 2 har kæber 6 og 7 bestemt til at gribe om en stilladsstang 13. I en udsparing 8 i kloen 3 er der placeret en lukkearm 9, som ved sin ene 25 ende er svingeligt lejret på en akseltap 10, f.eks. en rørnitte, i kloen 3. En fjeder 11 er anbragt omkring akseltappen 10 og tjener til at påvirke armen 9 i urviserens retning (således som vist i fig.In the drawing, 1 denotes a pipe or a profile rod, e.g. to support a cover plate, not shown, to be attached, which is to be attached on top of a scaffold. Attached to the pipe 1 is a fastening handle, generally designated 2, which has a claw 3 with a projecting part 4, which is inserted into the pipe or rod 1 and securely fastened therein e.g. with a through bolt 5. The claw 2 has jaws 6 and 7 intended to grip around a scaffold rod 13. In a recess 8 in the claw 3 a closing arm 9 is placed, which at its one end is pivotally mounted on a shaft pin 10, for example. a tube rivet, in the claw 3. A spring 11 is arranged around the shaft pin 10 and serves to actuate the arm 9 in a clockwise direction (as shown in fig.

1 og 2), så at armens frie ende 12 presses nedad for i normal arbejdsstilling at gribe ned under stilladsstangen 13. Det vil 30 forstås, at armen 9 ved påvirkning i retning modsat udviserens retning svinges opad, således at grebet 9 kan frigøres fra stilladsstangen 13.1 and 2), so that the free end 12 of the arm is pressed downwards to engage under the scaffolding rod 13 in the normal working position. It will be understood that the arm 9 is swung upwards when actuated in the direction opposite to the direction of the pointer, so that the handle 9 can be released from the scaffolding rod 13.

Ved 14 er vist et trækorgan i form af én wire, som er fastgjort til 35 armen 9's overside ved et sted 15, der f.eks. kan være et hul, som wiren er ført igennem. Wiren strækker sig op gennem udsparingen 4 og er ført over et omlede- eller modholdsorgan 16 beliggende foroven i kloen 3. Ved et træk i wiren 14 kan armen 9 således svinges til sin udløsestilling modsat virkningen af fjederen 11.At 14 a pulling means is shown in the form of one wire, which is attached to the upper side of the arm 9 at a place 15, which e.g. may be a hole through which the wire is passed. The wire extends up through the recess 4 and is passed over a deflection or retaining member 16 located at the top of the claw 3. By pulling on the wire 14, the arm 9 can thus be pivoted to its release position opposite to the action of the spring 11.

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4 I en boring 17 i kloen 3 er der monteret en låsetap 18, som er omgivet af en fjeder 19. Låsetappen 18 er forsynet med et hoved 20 beliggende i en udvidet boring 21 i kloen.4 In a bore 17 in the claw 3 a locking pin 18 is mounted, which is surrounded by a spring 19. The locking pin 18 is provided with a head 20 located in an expanded bore 21 in the claw.

5 I lukkearmen 9 er der udformet et aflangt hul 22 med en udvidet del 23 med tilsvarende dimensioner som boringerne 17 henholdsvis 21.5 In the closing arm 9 an elongate hole 22 is formed with an enlarged part 23 with corresponding dimensions as the bores 17 and 21, respectively.

Hullet 22, 23 er beliggende således, at låsetappen 18's hoved 20 kan indføres i den udvidede del 23 af hullet i lukkearmen, når denne er svinget til sin åbne stilling.The hole 22, 23 is located so that the head 20 of the locking pin 18 can be inserted into the enlarged part 23 of the hole in the closing arm when it is pivoted to its open position.

10 Når fjederen 19 er en trykfjeder, som presser låsetappen 18 udad, vil dens hoved 20 automatisk føres ind i den udvidede del 23 i låsearmen 9, når denne med et træk i wiren 14 svinges modsat urviserens retning. Såfremt fjederen 19 er en træk-fjeder, der’søger at 15 trække låsestiften 18 indad i kloen, kan låsetappen i lukkearmens åbne stilling manuelt trækkes ud, således at hovedet 20 indgriber i den udvidede del 23, og ved passende dimensionering af fjederkraften af de to fjedre 11 og 19 kan låsetappen fastholdes i låsestillingen af den af fjederen 11 frembragte friktion af hovedet 20 i den 20 udvidede del 23 af hullet 22. Ved et træk i wiren 14 frigives låsetappen, således at fjederen 19 kan føre tappen ud af indgreb med armen 9, som derefter automatisk kan svinge ned i sin låsestilling omkring stilladsstangen 13. 1 2 3 4 5 6 7 8 9 10 11When the spring 19 is a compression spring which presses the locking pin 18 outwards, its head 20 will automatically be inserted into the enlarged part 23 of the locking arm 9 when it is swung with a pull in the wire 14 opposite to the clockwise direction. If the spring 19 is a tension spring which seeks to pull the locking pin 18 inwards into the claw, the locking pin in the open position of the closing arm can be manually pulled out so that the head 20 engages the extended part 23, and by appropriately dimensioning the spring force of the two springs 11 and 19, the locking pin can be held in the locking position by the friction of the head 20 produced by the spring 11 in the extended part 23 of the hole 22. By pulling on the wire 14, the locking pin is released so that the spring 19 can lead the pin out of engagement with the arm 9, which can then automatically swing down into its locking position around the scaffolding rod 13. 1 2 3 4 5 6 7 8 9 10 11

Ved lægningen af en på profilstangen eller -røret 1 fastgjort 2 overdækningsplade (ikke vist) drages der omsorg for, at wiren 14 3 strækker sig ind ovar den tidligere lagte overlappede plade og ud 4 under kanten af den overlappende plade, så at wireenden ligger frit 5 tilgængelig oven på overdækningen. Ved pålægning af en plade er 6 fastgøringsgrebets lukkearm 9 normalt i en lukkestilling, og når 7 grebet presses ned over stilladsstangen 13, bliver armen 9 presset 8 noget tilbage, således at stangen 13 kan passere ind i kloen, 9 hvorefter armen 9 automatisk går tilbage til sin lukkestilling.When laying a 2 cover plate (not shown) attached to the profile rod or tube 1, care is taken that the wire 14 3 extends inwards over the previously laid overlapped plate and out 4 below the edge of the overlapping plate, so that the wire end lies freely 5 available on top of the cover. When applying a plate, the closing arm 9 of the fastening handle 6 is normally in a closed position, and when the handle 7 is pressed down over the scaffolding rod 13, the arm 9 is pressed back slightly so that the rod 13 can pass into the claw 9, after which the arm 9 automatically returns to its closed position.

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Grebet fungerer således som et snapgreb. Lukkearmen 9 svinges herved 11 normalt ikke til sin maksimalt åbne stilling, hvor låsetappen går i låseindgreb med armen i den udførelsesform, hvor fjederen 19 er en trykfjeder, som presser låsetappen udad. Ved udførelsesformen, hvor fjederen 19 er en trækfjeder, etableres låseindgrebet mellem låsetappen og hullet 22, 23 hensigtsmæssigt, før pladen skal lægges påThe grip thus functions as a snap grip. The closing arm 9 hereby does not normally swing to its maximum open position, where the locking pin engages in locking engagement with the arm in the embodiment where the spring 19 is a compression spring which presses the locking pin outwards. In the embodiment where the spring 19 is a tension spring, the locking engagement between the locking pin and the hole 22, 23 is suitably established before the plate is to be laid on

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5 plads, og låseindgrebet frigøres derpå efter pladens pålægning ved et træk i wiren 14.5 space, and the locking engagement is then released after the plate has been applied by a pull on the wire 14.

Når overdækningspladen skal demonteres, kan montøren, som befinder 5 sig oven på overdækningen, udløse låsegrebet ved et træk i wiren 14, der som nævnt ligger frit oven på den overlappede plade. Ved udførelsesformen med en trykfjeder 19 går låsetappen derved automatisk ind i låseindgreb og holder lukkearmen 9 åben, og når montøren har udløst alle låsegrebene, kan han umiddelbart fjerne overdæknings-10 pladen. Fastgøringsgrebet med en trækfjeder 19 anvendes hensigtsmæssigt kun på de steder, hvor selve grebet umiddelbart er tilgængeligt ovenfra, så at montøren manuelt kan påvirke låsetappen 18, 20.When the cover plate is to be dismantled, the fitter, who is 5 on top of the cover, can release the locking handle by a pull in the wire 14, which, as mentioned, lies freely on top of the overlapped plate. In the embodiment with a compression spring 19, the locking pin thereby automatically enters the locking engagement and keeps the closing arm 9 open, and when the fitter has released all the locking handles, he can immediately remove the cover plate 10. The fastening handle with a tension spring 19 is expediently used only in those places where the handle itself is immediately accessible from above, so that the fitter can manually actuate the locking pin 18, 20.

15 Det vil således ses, at der er opnået en væsentlig risikoformindskelse, idet montøren kan udføre alt monterings- og demonteringsarbejde, når han befinder sig oven på overdækningen, og endvidere opnås der en betydelig tids- og arbejdsbesparelse ved den beskrevne udløsning af fastgøringsgrebet.It will thus be seen that a significant reduction in risk has been achieved, as the fitter can perform all assembly and disassembly work when he is on top of the cover, and furthermore a significant time and labor saving is achieved by the described release of the fastening handle.

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Claims

6 DK 165796 B Patent claim.

Fastening handle comprising a claw (3) for engaging around a rod or a tube (13) and a spring-actuated closing arm (9) for locking the opening of the claw at least partially in a closed position and holding it in an open position against the spring action. open, characterized in that a pulling member in the form of a wire (14) is connected to the closing arm (9), so that it can be moved from the closed to open position by a pull in the wire, that the handle (2) has a locking member 10 ( 18, 20), which is arranged to be able to automatically hold the closing arm (9) in its open position, that the closing arm (9) is pivotally mounted in the claw (3), and that the wire is attached to the closing arm (9) on somewhere (15) at a distance from its bearing axis (10).

Fastening handle according to claim 1, characterized in that the locking means is a spring-actuated locking pin (18, 20) mounted in the claw (3), and that the closing arm (9) has an opening (23) in which the pin can engage in the open position of the closing arm.

Fastening handle according to claim 1 or 2, characterized in that the locking member (18, 20) is spring-loaded against its engaging position in the closing arm (9).

Fastening handle according to claim 1 or 2, characterized in that the locking means (18, 20) is spring-actuated out of its engaging position in the closing arm (9).

Fastening handle according to claim 4, characterized in that the spring action on the locking pin (18, 20) is of such a size that the locking pin can be held in the opening (23) in the closing arm (9) by the friction produced by the spring action on the closing arm between the locking pin and the opening (23). 35