DK147277B

DK147277B - CLUTCH UNIT FOR SEPARATE CONNECTION OF A DRIVER AND A DRIVER UNIT IN A TRANSPORT PLANT

Info

Publication number: DK147277B
Application number: DK303279A
Authority: DK
Inventors: Lars Olov Benndahl
Original assignee: Lars Olov Benndahl
Priority date: 1979-07-19
Filing date: 1979-07-19
Publication date: 1984-06-04
Also published as: WO1981000236A1; SE423367B; GB2071591B; DE3049738A1; SE8101641L; DK303279A; DE3049738C2; DK147277C; GB2071591A

Description

1 t472771 t47277

Opfindelsen angår et koblingsaggregat til adskillelig sammenkobling af en drivende og en drevet enhed i et transportanlæg, fortrinsvis af den art, hvor den drivende enhed er indrettet til at køre på et ophængt skinnelegeme, og 5 hvor den drevne enhed er en på et underlag bevægelig transportvogn, som er indrettet til sammenkobling med en drivende enhed fortrinsvis via en koblingsstang, hvilket aggregat omfatter en med den ene af de to samvirkende enheder stift forbundet koblingstap, som i hovedsagen har et i retning 10 mod dens frie ende jævnt eller trinvist aftagende tværsnitsmål, og omfatter et med den anden af de to nævnte enheder stift forbundet koblingsrør, som har en til optagelse af koblingstappen indrettet, tragtformet åbning.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a coupling assembly for separably coupling a driving and a driven unit in a conveyor system, preferably of the kind in which the driving unit is adapted to run on a suspended rail body, and , which is arranged for coupling with a driving unit preferably via a coupling rod, which comprises a coupling pin which is rigidly connected to one of the two cooperating units, which generally has a smooth or stepwise decreasing cross-sectional dimension 10 towards its free end, and comprises a coupling tube rigidly connected to the other of the two units, which has a funnel-shaped opening arranged for receiving the coupling pin.

Et koblingsaggregat med konisk koblingstap er kendt f.eks. fra 15 USA patentskrift nr. 2687221. Dette aggregat er ikke stift under opbremsning, hvilket ifølge nærværende opfindelse er erkendt at være en stor fordel i forbindelse med et transportanlæg af den ovennævnte art.A coupling assembly with tapered coupling pin is known e.g. from United States Patent No. 2687221. This assembly is not rigid during braking, which according to the present invention is recognized to be of great advantage in connection with a conveyor plant of the above kind.

Et sådant transportanlæg er f.eks. kendt fra beskrivelsen 20 til dansk patentansøgning nr. 1498/78 og benyttes eksempelvis i godsterminaler til udbringning af læssede transportvogne til individuelle bestemmelsessteder langs transportbanen, hvor vognene kan kobles fra drivsystemet og aflæsses, hvorefter de i tom tilstand kan genforbindes med drivsyste-25 met for tilbageføring til et pålæsningssted langs den normalt lukkede transportbane. De drivenheder, der bevæger sig langs.med det ophængte skinnelegeme er enten selvkørende, individuelt drevne enheder eller drivblokke på en transportkæde, som bærer de nedragende koblingsstænger.Such a transport facility is e.g. known from the description 20 of Danish patent application no. 1498/78 and is used, for example, in freight terminals for delivery of loaded transport vehicles to individual destinations along the transport path, where the wagons can be disconnected from the drive system and unloaded, after which they can be reconnected in empty state with the drive system for return to a loading point along the normally closed transport path. The drive units which move slowly with the suspended rail body are either self-propelled, individually driven units or drive blocks on a transport chain which carries the bearing coupling rods.

30 Det kendte anlæg omfatter et koblingsaggregat, som er indrettet til at forbinde en koblingsstang med en transportvogn på adskillelig måde, hvilket aggregat er indrettet således, at de indbyrdes sammenkoblede dele udgør et i lodret plan stift led, medens leddet i vandret plan har en vis bevæge- 2 147277 lighed. Den sidstnævnte bevægelighed er udmærket, når transportvognen trækkes frem på sædvanlig måde, hvor det i øvrigt også ville være en fordel med en vis bevægelighed i lodret plan. Bevægeligheden er imidlertid en stor ulempe, når en 5 drivende enhed bremser og/eller især kører gennem en kurve i det ophængte skinnelegeme, idet transportvognens inerti og koblingsaggregatets sidebevægelighed vil medføre, at transportvognen med stor sandsynlighed kører et stykke uden for den korrekte bevægelsesbane, inden transportvognen standser.The known plant comprises a coupling assembly adapted to connect a coupling rod to a transport carriage in several ways, the assembly being arranged so that the interconnected parts form a vertically rigid joint, while the horizontal plane joint has a certain motion similarity. The latter mobility is excellent when the truck is pulled in the usual way, which would otherwise also be advantageous with some vertical plane movement. However, movement is a major disadvantage when a driving unit brakes and / or in particular drives through a curve in the suspended rail body, since the inertia of the transport vehicle and the lateral movement of the clutch assembly will, in all likelihood, cause the transport vehicle to move far out of the correct path of movement. the truck stops.

10 Formålet med opfindelsen er at angive et koblingsaggregat, hvor de ovenfor beskrevne ulemper er undgået, dvs. et koblingsaggregat, som medfører en vis bevægelighed mellem de indbyrdes sammenkoblede dele, når koblingsaggregatet overfører en trækkraft, medens koblingsaggregatet er fuldstæn-15 digt stift i alle retninger, når det overfører trykkræfter.The object of the invention is to provide a coupling assembly in which the disadvantages described above are avoided, ie. a clutch assembly which causes some movement between the interconnected parts when the clutch assembly transmits a traction force, while the clutch assembly is fully rigid in all directions when it transmits compressive forces.

Dette formål opnås ved, at aggregatet er udformet som angivet i krav l's kendetegnende del, idet eftergiveligheden, når koblingsaggregatet overfører et træk, opnås ved at koblingstappen er fastholdt mod udtrækning af koblingsrøret i 20 en låsestilling, hvor koblingstappens indtrængningsdybde er mindre end den største indtrængningsdybde, og idet den største indtrængningsdybde forekommer, når koblingsaggregatet overfører trykkræfter, og medfører en fuldstændig stiv forbindelse på grund af den tragtformede åbning i koblings-25 røret og den kegleagtige koblingstap i forbindelse med i det mindste to med indbyrdes aksial afstand beliggende ringformede anlægsområder mellem delene.This object is achieved in that the assembly is designed as defined in the characterizing part of claim 1, wherein the compliance when the coupling assembly transmits a pull is obtained by holding the coupling pin against pulling out of the coupling tube in a locking position where the depth of penetration of the coupling pin is less than the maximum penetration depth. and with the greatest penetration depth occurring when the clutch assembly transmits compressive forces, and results in a completely rigid connection due to the funnel-shaped opening in the clutch tube and the cone-like clutch loss in connection with at least two mutually spaced annular abutment areas between the parts .

Den største indtrængningsdybde er fortrinsvis defineret ved det i krav 2 angivne randområde, som medfører, at koblings-30 tappen ved opbremsning altid retter sig ind i nøjagtig for længelse af koblingsstangen.The greatest penetration depth is preferably defined by the peripheral region specified in claim 2, which causes the coupling pin to always align with the braking rod exactly when braking.

Krav 3 angiver en foretrukken udførelsesform for låseorganerne. På grund af den tragtformede åbning i koblingsrøret og på grund af den aksiale frigang i den nævnte låsestil- 3 147277 ling mellem koblingstappen og koblingsrøret kan delene sammenkobles indbyrdes, selv om koblingstappens akse danner en vis vinkel med koblingsstangens akse. Dette er især en fordel, når transportvognen er tungt lastet, idet det kan 5 være vanskeligt ved håndkraft at bringe transportvognen i en nøjagtig stilling i forhold til koblingsaggregatet.Claim 3 indicates a preferred embodiment of the locking means. Due to the funnel-shaped opening in the coupling tube and because of the axial clearance in said locking position between the coupling pin and the coupling tube, the parts can be interconnected, although the axis of the coupling pin forms a certain angle with the axis of the coupling rod. This is especially advantageous when the truck is heavily loaded, as it can be difficult to manually move the truck in an exact position relative to the clutch assembly.

Sammenkoblingen lettes yderligere ved de i krav 4 angivne foranstaltninger, som medfører en aksial bevægelighed af koblingsaggregatet i forhold til koblingsstangen, således 10 at der opnås en relativ margin for positionering af trans portvognen for at delene kan sammenkobles.The coupling is further facilitated by the measures specified in claim 4 which cause an axial movement of the coupling assembly with respect to the coupling rod, such that a relative margin is obtained for positioning the transport carriage for the parts to be coupled.

Krav 5 angiver foretrukne låseorganer mellem koblingsaggregatet og koblingsstangen, hvilke låseorganer kan være identiske med låseorganerne mellem koblingsaggregatet og kob-15 lingstappen, hvorved fremstillingen af koblingsaggregatet lettes.Claim 5 indicates preferred locking means between the coupling assembly and the coupling rod, which locking means may be identical to the locking means between the coupling assembly and the coupling pin, thereby facilitating the manufacture of the coupling assembly.

Ved hjælp af de i krav 6 angivne foranstaltninger opnås, at-låseorganerne mellem koblingsrøret og såvel koblingstappen som koblingsstangen samtidig er enten i indgreb eller 20 ude af indgreb i afhængighed af en drejning af koblingsrø ret omkring dettes akse. Denne drejning kan tilvejebringes ved hjælp af det i krav 7 nævnte håndtag, således at koblingsaggregatet kun skal betjenes med én hånd, når det skal forbindes til en transportvogn, medens den anden hånd er 25 fri til positionering af transportvognens styrestang, som bærer koblingstappen.By the measures set out in claim 6, it is achieved that the locking means between the coupling tube and both the coupling pin and the coupling rod are simultaneously either engaged or out of engagement, depending on a rotation of the coupling tube about its axis. This rotation can be provided by the handle mentioned in claim 7, so that the clutch assembly is to be operated with one hand only when it is to be connected to a transport car, while the other hand is free to position the control rod of the transport car carrying the coupling pin.

Opfindelsen vil blive nærmere forklaret ved den følgende beskrivelse af en udførelsesform, idet der henvises til tegningen, hvor 30 fig. 1 viser en del af et transportanlæg med et koblingsaggregat ifølge opfindelsen, fig. 2 viser et længdesnit gennem en udførelsesform for koblingsaggregatet ifølge opfindelsen, 4 147277 fig. 3 viser et snit langs linien III-III i fig. 2, medens fig· 4 viser et snit som fig. 3, men hvor koblingsrøret er drejet en vinkel på 60 °C-The invention will be further explained by the following description of an embodiment, with reference to the drawing, in which 1 shows a part of a conveyor system with a coupling assembly according to the invention; FIG. 2 is a longitudinal section through an embodiment of the coupling assembly according to the invention; FIG. 3 shows a section along the line III-III in FIG. 2, while FIG. 4 is a sectional view of FIG. 3, but where the coupling tube is turned at an angle of 60 ° C -

Fig. 1 viser dele i et transportanlæg af den art, hvortil 5 koblingsaggregatet ifølge opfindelsen er særligt velegnet. Anlægget omfatter et antal transportvogne, såsom vognen 1, der er vist med en last 2, og som er indrettet til at køre på et underlag 3. Transportvognen 1 har en styre stang 4, hvis frie ende er udformet som et håndtag (kan ikke ses i figuren-), således at transportvognen kan drives ved håndkraft. Normalt drives transportvognene imidlertid ved hjælp af et antal selvkørende vogne, hvor en vogn 5 er vist, som kører langs et ophængt skinnelegeme 6, og som er indrettet 15 til at drive en transportvogn via en koblingsstang 7, idet der findes et koblingsaggregat 8 ifølge opfindelsen, der er indrettet til udløselig sammenkobling af koblings stangen 7 og styrestangen 4 via en konsol 9 med en koblingstap 10.FIG. 1 shows parts of a conveyor system of the kind to which the coupling assembly according to the invention is particularly suitable. The plant comprises a plurality of transport wagons, such as the carriage 1 shown with a load 2, which is arranged to run on a support 3. The carriage 1 has a guide rod 4, the free end of which is designed as a handle (can not be seen in the figure-), so that the truck can be operated by hand. Normally, however, the transport carriages are driven by a number of self-driving carriages, in which a carriage 5 is shown, which runs along a suspended rail body 6, and which is arranged 15 to drive a transport carriage via a coupling rod 7, a coupling assembly 8 according to the invention being found. adapted for releasably coupling the coupling rod 7 and the control rod 4 via a bracket 9 with a coupling pin 10.

Fig. 2 viser et længdesnit gennem koblingsaggregatet 8 i-20 følge opfindelsen. Koblingsaggregatet omfatter et koblings rør 11, der er indrettet til at optage et variabelt stykke af koblingsstangen 7, som for enden har et anlægsbryst 12 til samvirkning med en stopkant 13 i koblingsrøret 11, når vognen 5 overfører et træk gennem koblingsstangen 7 25 til transportvognen 1. Dette træk overføres til transport vognen via låseorganer, som findes i koblingsrøret 11's anden ende til samvirkning med koblingstappen 10, og som vil blive nærmere beskrevet i det følgende.FIG. 2 shows a longitudinal section through the coupling assembly 8 according to the invention. The coupling assembly comprises a coupling tube 11 adapted to receive a variable portion of the coupling rod 7, which at the end has a abutment breast 12 for cooperating with a stop edge 13 in the coupling tube 11 as the carriage 5 transmits a pull through the coupling rod 7 25 to the transport carriage 1. This feature is transmitted to the carriage via locking means which is located at the other end of the coupling tube 11 for co-operation with the coupling pin 10, which will be described in more detail below.

Ved den viste udførelsesform har koblingstappen 10 et i ho-30 vedsagen cirkulært tværsnit, som aftager gradvist i retning mod koblingstappens ende. Koblingstappen 10 har således en keglestubformet anlægsflade 14, en i hovedsagen cylindrisk del 15 og en anden anlægsflade 16, som går over i koblingstappens tilspidsede ende. Med henblik på at hindre, at koblingstappen 10 trækkes ud af koblingsrøret 11, findes der tre f je- 5 147277 derbelastede låsefaller, hvor en låsefalle 17 er vist i fig.In the illustrated embodiment, the coupling pin 10 has a circular cross-section substantially connected to it, which decreases gradually towards the end of the coupling pin. Thus, the coupling pin 10 has a cone-shaped abutment surface 14, a generally cylindrical portion 15, and a second abutment surface 16 which extends into the tapered end of the coupling pin. In order to prevent the coupling pin 10 from being pulled out of the coupling tube 11, there are three spring-loaded locking cases, a locking case 17 being shown in FIG.

2 (se endvidere fig. 3, som viser et snit gennem låseorganerne langs linien III-III på fig. 2). Låsefallerne 17 er ved den viste udførelsesform cylindriske, bortset fra en nedskæ-5 ring 18 til anlæg mod en låseflade 19 på koblingstappen 10.2 (see also Fig. 3, which shows a section through the locking means along the line III-III in Fig. 2). In the embodiment shown, the locking cases 17 are cylindrical, except for a cut-off ring 18 for abutment against a locking surface 19 on the coupling pin 10.

Hver låseflade 19 er tilvejebragt ved respektive nedskæringer 20 (og 20A, 20B for de to andre låsefaller, som kan ses i fig. 3 og 4). Hver låsefalle 17 er anbragt i en tilhørende* cylindrisk kop 21 og er ved hjælp af en fjeder 22 forspændt 10 i retning mod koblingsrøret 11's akse. Hver kop 21 er ved hjælp af et gevind skruet ind i koblingsrøret 11 i hovedsagen vinkelret på dettes akse. I forbindelse med, at låsefallerne overvejende er cylindriske, opnås derved en simpel konstruktion, således at fallerne let kan udskiftes, når de 15 bliver slidt.Each locking surface 19 is provided by respective cuts 20 (and 20A, 20B for the other two locking cases which can be seen in Figures 3 and 4). Each locking case 17 is disposed in a corresponding cylindrical cup 21 and is biased 10 by means of a spring 22 towards the axis of the coupling tube 11. Each cup 21 is screwed into the coupling tube 11 by means of a thread generally perpendicular to its axis. In that the locking cases are predominantly cylindrical, a simple construction is thus obtained, so that the cases can be easily replaced when they are worn.

De ovenfor omtalte låseorganer hindrer udtrækning af koblingstappen 10 af koblingsrøret 11, når transportvognen 1 trækkes af en selvkørende vogn 5, men hvis vognen 5 bremser, skal koblingsaggregatet kunne optage et tryk, hvilket sker ved, at 20 koblingstappen 10 bevæger sig et lille stykke længere ind i koblingsrøret 11, indtil anlægsfladen 14 ligger an mod en modsvarende anlægsflade 23 i koblingsrøret 11. Foruden denne anlægsflade 23 har koblingsrøret en yderligere, indvendig anlægsflade 24, som modsvarer anlægsfladen 16 på koblingstappen 10 25 ‘ under dennes største indtrængningsdybde i koblingsrøret 11.The locking means mentioned above prevent the pull-out of the coupling pin 10 from the coupling tube 11 when the carriage 1 is pulled by a self-propelled carriage 5, but if the carriage 5 brakes, the clutch assembly must be able to absorb pressure, which is done by the coupling pin 10 moving a little further into the coupling tube 11 until the abutment surface 14 abuts against a corresponding abutment surface 23 in the coupling tube 11. In addition to this abutment surface 23, the coupling tube has an additional inner abutment surface 24 which corresponds to the abutment surface 16 on the coupling pin 10 25 'below its greatest penetration depth in the coupling tube 11.

Den ende af koblingsrøret 11, gennem hvilken koblingsstangen 7 optages, er forsynet med tre låsefaller-, hvor en låsefalle 25 er vist, hvilke låsefaller ved den viste udførelsesform er identiske med de ovenfor beskrevne låsefaller for samvirkning 30 med koblings tappen 10 og hver har en tilsvarende trykfjeder og skruekop. Låsefallerne 25 er indrettet til at samvirke med respektive låseflader 26 på koblingsstangen 7, i det mindste når koblingsaggregatet skal overføre en trykkraft. Låsefladerne 26 er på samme måde som låsefladerne 19 tilvejebragt ved respektive nedskæringer 27 i koblingsstangen 7, hvor det umiddelbart vil kunne forstås, at der findes tre sådanne ned- 6 147277 skæringer 27 (i fig. 2 angiver 20A og 27A et par nedskæringer henholdsvis koblingstappen og koblingsstangen). Når koblingsstangen 7 bevæges mod højre i fig. 2, indtil anlægsbrystet 12 ligger an mod stopkanten 13, vil låsefallerne 25 bevæge sig 5 ned i de respektive udskæringer 27, således at det i fig. 2 viste snit IV-IV er identisk med det i fig. 3 viste, og således at koblingsaggregatet kan optage trykkræfter ved låsefallerne 25's anlæg mod de respektive låseflader 26. For illustrationens skyl strækker koblingsstangen 7 sig i fig. 2 et stykke 10 ind i koblingsrøret 11, og i denne stilling vil låsefallerne 25 indtage den i fig. 4 viste stilling, hvor afstanden fra koblingsrøret 11's akse er størst.The end of the coupling tube 11 through which the coupling rod 7 is received is provided with three locking cases, where a locking case 25 is shown, which in the illustrated embodiment are identical to the locking cases described above for cooperation 30 with the coupling pin 10 and each has a corresponding pressure spring and screw cup. The locking cases 25 are arranged to cooperate with respective locking surfaces 26 on the coupling rod 7, at least when the coupling assembly is to transmit a compressive force. The locking surfaces 26 are provided in the same way as the locking surfaces 19 by respective cuts 27 in the coupling rod 7, where it will be immediately understood that there are three such cuts 27 (in Figure 2, 20A and 27A indicate a pair of cuts respectively the coupling pin and the coupling rod). As the coupling rod 7 is moved to the right in FIG. 2, until the abutment chest 12 abuts against the stop edge 13, the locking cases 25 will move 5 down into the respective cut-outs 27, so that in FIG. 2, section IV-IV is identical to that of FIG. 3, and so that the clutch assembly can absorb compressive forces at the locking case 25's abutment against the respective locking surfaces 26. For the illustration of the illustration, the clutch rod 7 extends in FIG. 2 a piece 10 into the coupling tube 11, and in this position the locking cases 25 will take the position shown in FIG. 4, where the distance from the axis of the coupling tube 11 is greatest.

Virkemåden for koblingsaggregatet ifølge, opfindelsen vil nu blive nærmere forklaret under henvisning til fig. 1-4. Når 15 en transportvogn 1 er læsset med en byrde 2 og skal transporteres over større afstand ved hjælp af transportanlægget, føres transportvognen ved håndkraft hen under en ledig vogn 5 på skinnelegemet 6. Når vognen 5 er ledig, er koblingsstangen 7 fortrinsvis svunget op til den i fig. 1 med stiplet 20 streg viste stilling, f.eks. ved hjælp af gasfjedre i vognen 5. Koblingsstangen 7 føres ned, fortrinsvis ved at der med den ene hånd gribes om et håndtag 28, som er fastgjort på tværs af koblingsrøret 11, medens styrestangen 4 med den anden hånd holdes således, at koblingsstangen 7 og koblings-25 tappen 10 flugter, hvorefter koblingsrøret 11 føres skråt nedad til indgreb med koblingstappen.The operation of the coupling assembly according to the invention will now be explained in more detail with reference to FIG. 1-4. When a transport trolley 1 is loaded with a load 2 and is to be transported over a greater distance by means of the conveyor system, the transport trolley is guided by hand under a vacant trolley 5 on the rail body 6. When the trolley 5 is vacant, the coupling rod 7 is preferably pivoted up to it. in FIG. 1 with a dotted line 20 position, e.g. by means of gas springs in the carriage 5. The coupling rod 7 is brought down, preferably by gripping with one hand a handle 28 which is fastened transversely of the coupling tube 11, while holding the control rod 4 with the other hand such that the coupling rod 7 and the coupling pin 10 flushes, and then the coupling tube 11 is inclined downwardly to engage the coupling pin.

Det skal her bemærkes, at nedskæringerne 20 og 27 i henholdsvis koblingstappen 10 og koblingsstangen 7 er anbragt såle-30 des, at de flugter parvis svarende til, at låsefallerne 17 og 25 er beliggende parvis i respektive aksialplaner for koblingsrøret 11. Denne placering medfører, at koblingsaggregatet ifølge opfindelsen kan udløses ved at dreje koblingsrøret 11 omkring sin længdeakse ved hjælp af håndtaget 28 (ved 35 den viste udførelsesform, hvor der i hver ende af koblingsrøret findes tre låsefaller, vil der være tale om en drej- 7 147277 ning på 60°). Drejningen er illustreret i fig. 3 og 4, idet fig. 3 viser et snit gennem koblingsaggregatet i en låsestilling, hvor låsefallerne ligger an mod de respektive låseflader, medens fig. 4 viser et snit som fig. 3, men hvor kob-5 lingsrøret 11 er drejet en-vinkel·'på 60°, hvorved låsefallerne trykkes radialt udad og fri af låsefladerne 19, hvilket medfører, at koblingstappen 10 kan udtages af koblingsrøret 11, og at koblingsstangen 7 kan føres yderligere ind i koblingrøret 11. Samtidig med at koblingsstangen 7 på en ledig 10 vogn 5 som ovenfor forklaret føres nedad fra den med stiplet streg viste stilling (fig. 1) til den med fuldt optrukken streg viste stilling, gives håndtaget 28 kortvarigt den nævnte vinkeldrejning, således at koblingsaggregatet han skubbes opad til koblingsstangen 7rs største indtrængningsdyb-15 de i dette, og når koblingstappen 10 flugter med koblingsstangen 7, føres koblingsaggregatet ned til indgreb med koblingstappen 10. Herefter startes vognen 5, og trækket i koblingsstangen 7 overføres til transportvognen via anlægsbrystet 12 og anlægsstoppet 13, henhuldsvis låsefallerne 17 og 20 låsefladerne 19.It should be noted here that the cuts 20 and 27 in the coupling pin 10 and the coupling rod 7, respectively, are arranged so that they align in pairs corresponding to the locking cases 17 and 25 being located in pairs in respective axial planes for the coupling pipe 11. that the coupling assembly according to the invention can be released by turning the coupling tube 11 about its longitudinal axis by the handle 28 (in the illustrated embodiment, where at each end of the coupling tube there are three locking cases there will be a rotation of 60 °). The rotation is illustrated in FIG. 3 and 4, FIG. 3 shows a section through the coupling assembly in a locking position where the locking lugs abut the respective locking surfaces, while FIG. 4 is a sectional view similar to FIG. 3, but where the coupling tube 11 is angled at an angle of 60 °, whereby the locking cases are pressed radially outwards and free of the locking surfaces 19, which means that the coupling pin 10 can be removed from the coupling tube 11 and that the coupling rod 7 can be further guided. into the coupling tube 11. At the same time as the coupling rod 7 on a vacant 10 carriage 5 as explained above is moved downward from the dotted line position (Fig. 1) to the fully drawn line position, the handle 28 is briefly given the said angular rotation, so that the clutch assembly he is pushed upward to the largest penetration depth of the clutch rod 7, and when the clutch pin 10 aligns with the clutch rod 7, the clutch assembly is brought down to engagement with the clutch pin 10. The carriage 5 is then started and the pull in the clutch rod 7 is transferred to the transport trolley via the abutment chest. 12 and abutment stop 13, respectively, the locking cases 17 and 20 the locking surfaces 19.

Under transporten forekommer der flere opbremsninger, f.eks. for at undgå kollisioner. Set fra transportvognen vil en kurve i skinnelegemet 6 også virke som en opbremsning, og det er her særlig vigtigt, at koblingsaggregatet medfører 25 en stiv forbindelse mellem koblingsstangen 7 og styrestangen 4. Den stive forbindelse opnås ved koblingsaggregatet ifølge opfindelsen, hvilket bedst kan ses af fig. 2. Under en opbremsning vil koblings tapp enr Ί0 s om-nævnt· gå i bund i koblingsrøret 11, således -at anlægsfladerne henholdsvis 14 30 og 16 på koblingstappen ligger an mod anlægsfladerne henholdsvis 23 og 24 i koblingsrøret, hvorved der kan optages et bøjningsmoment vinkelret på koblingsrøret 11’s akse. Et tilsvarende bøjningsmoment kan optages i koblingsrøret 11's anden ende, idet koblingsstangen 7*s indvendige anlæg i kob-35 lingsrøret 11 har en tilstrækkelig aksial udstrækning (summen af længden af åbningen i koblingsrøret 11 til optagelse 8 147277 af koblings stangen 7 og længden af e.t endestykke 29 på koblingsstangen 7). Denne stive forbindelse under opbremsning medfører en veldefineret bevægelsesbane for transportvognen 1 i en kurve og forhindrer en drejning af kørehjulet under 5 opbremsning på et lige stræk.During transport, several brakes occur, e.g. to avoid collisions. Seen from the transport vehicle, a curve in the rail body 6 will also act as a braking, and it is particularly important here that the clutch assembly 25 provides a rigid connection between the clutch rod 7 and the guide rod 4. The rigid connection is obtained by the clutch assembly according to the invention, as can best be seen by FIG. 2. During a braking, the coupling pin will, as mentioned above, go into the bottom of the coupling tube 11, so that the abutment surfaces 14 and 30 respectively on the coupling pin abut the abutment surfaces 23 and 24 respectively in the coupling tube, whereby a bending moment can be absorbed. perpendicular to the axis of the coupling tube 11. A corresponding bending moment can be accommodated at the other end of the coupling tube 11, the inner abutment of the coupling rod 7 * in the coupling tube 11 having a sufficient axial extension (the sum of the length of the opening in the coupling tube 11 for receiving 8 the coupling rod 7 and the length of a coupling rod 7 end piece 29 of the coupling rod 7). This rigid connection during braking results in a well-defined path of movement of the transport vehicle 1 in a curve and prevents a rotation of the driving wheel during braking on a straight stretch.

Når transportvognen 1 skal kobles fri fra koblingsstangen 7» gives håndtaget 28 den før omtalte drejning, som, når vognen 5 er i gang, automatisk medfører en adskillelse, og som, når vognen 5 holder stille, tillader, at koblingsaggregatet 8 10 ved håndkraft kan bevæges bort fra og ud af indgreb med koblingstappen 10.When the carriage 1 is to be disengaged from the coupling rod 7 », the handle 28 is given the aforementioned rotation which, when the carriage 5 is in operation, automatically causes a separation and which, when the carriage 5 stops, allows the coupling unit 8 10 to be operated by hand. is moved away from and out of engagement with the coupling pin 10.

Foruden de allerede nævnte driftsegenskaber medfører koblingsaggregatet ifølge opfindelsen flere andre fordele, især af ar-bejdsvenlig karakter. Det skal for det første bemærkes, at 15 der ved den ovenfor forklarede sammenkobling af transportvognen og koblingsstangen ikke er fare for, at en operatør kan få hænderne i klemme, hvilket kunne være farligt, da transportvognene tit er læssede med 1 tons gods. Det kan også være vanskeligt ved håndkraft at bringe en så tung transport-20 vogn i en stilling, hvor koblingstappen 10 nøjagtigt flugter med koblingsstangen 7- Dette problem er også løst ved koblingsaggregatet ifølge opfindelsen, idet det af fig. 2 bemærkes, at der er nogen aksial afstand mellem anlægsfladerne 14, 23 og 16, 24, når låsefallerne 17 samvirker med 25 låsefladerne 19. Dette træk medfører i kombination med den tragtformede åbning i koblingsrøret 11 til optagelse af koblingstappen 10, at der kan opnås indgreb mellem koblingstappen 10 koblingsrøret 11, selv om disse dele ikke flugter nøjagtigt indbyrdes.In addition to the operating characteristics already mentioned, the coupling assembly according to the invention has several other advantages, especially of a work-friendly nature. First, it should be noted that in the above-described interconnection of the transport trolley and the clutch rod, there is no danger that an operator may get his hands clamped, which could be dangerous since the transport trolleys are often loaded with 1 ton of goods. It can also be difficult by hand to bring such a heavy transport trolley into a position where the clutch pin 10 exactly aligns with the clutch rod 7- This problem is also solved by the clutch assembly according to the invention, the embodiment of FIG. 2 it is noted that there is some axial distance between the abutment surfaces 14, 23 and 16, 24 when the locking cases 17 cooperate with the locking surfaces 19. This feature, in combination with the funnel-shaped opening in the coupling tube 11 for receiving the coupling pin 10, can be achieved. engagement between coupling pin 10 coupling tube 11, although these parts do not exactly align with each other.

30 Det vil kunne forstås, at de væsentlige træk ved den viste udførelsesform for koblingsaggregatet ifølge opfindelsen består i den tragtformede åbning i koblingsrøret 11 til optagelse af koblingstappen, der har et tværsnit, som i hovedsagen modsvarer åbningen i det mindste langs to med indbyrdes 35 aksial afstand beliggende områder (anlægsfladerne 14, 23 og 16, 24). Det er endvidere et vigtigt træk, at låsefallerneIt will be appreciated that the essential features of the illustrated embodiment of the coupling assembly according to the invention consist in the funnel-shaped opening in the coupling tube 11 for receiving the coupling pin having a cross-section substantially corresponding to the opening at least along two mutually axial 35 distant areas (abutments 14, 23 and 16, 24). It is also an important feature of the locking cases

Claims

9 147277 engages the coupling pin in a position where there is some axial distance between said cooperating abutment surfaces, but it can be understood that locking means other than the shown locking cases could be used, for example. only ball couplings are used. The coupling pin and coupling rod have a circular cross-section in the illustrated embodiment, which makes it possible to release the locking means only by turning the coupling tube, but it can be understood that the pin and rod can have other cross-sectional shapes, especially in connection with other types of locking means. The invention is also not limited to the particular carriage carrying: the locking pin, which could alternatively be positioned at the end of the coupling rod, while the coupling tube could be slidably mounted on the carriage. P_a_t_e_n_t_k_r_a_v_:

A coupling assembly for separably coupling a driving and a driven unit in a conveyor system, preferably of the kind in which the driving unit is arranged to run on a suspended rail body and wherein the driven unit is movable on a ground a transport trolley adapted to be coupled to a driving unit preferably via a coupling rod, which comprises a coupling pin connected to one of the two cooperating units-rigidly, which has substantially a cross-sectional or gradually decreasing direction towards its free end. and comprises a coupling tube rigidly connected to the other of the two mentioned units having a funnel-shaped opening arranged for receiving the coupling pin, characterized in that the cross-sectional dimension of the funnel-shaped opening corresponds at least along two cross-sectional dimensions of the coupling pin (10). with axially spaced annular abutment areas (14, 23 and 16, 24) for receiving a bending moment when coupling pins n (10) is introduced to its greatest penetration depth in the coupling tube (11) and there are releasable locking means (17, 19) arranged to hold the coupling pin (10) against the pull-out tube (11) in a locking position. , where the penetration depth is less than the greatest penetration depth.

Coupling assembly according to claim 1, characterized in that one abutment area (23) is located along the edge area of the aperture facing away from said second unit, which is inclined in relation to the axis of the coupling tube (11) by cooperating with a corresponding oblique contact surface (14) on the coupling pin (10) to define the 10 greatest penetration depth.

Clutch assembly according to claim 1 or 2, characterized in that the cross-section of the clutch pin (10) is substantially circular and has a plurality of cuts (20) defining respective non-interconnecting locking faces (19) facing said one unit, which is adapted to cooperate in the locking position with each locking case (17) arranged in the coupling tube (11), which is movable in a transverse plane and is spring loaded (22) in the direction of the coupling tube (11) axis.

Coupling assembly according to claim 1, 2 or 3, wherein the coupling pin is attached to a transport carriage, and wherein there is a coupling rod connected to the driving unit, characterized in that the coupling tube (11) is arranged to pass through it with respect to it. said opening opposite end accommodates a longitudinally variable portion of the coupling rod (7), and there are additional releasable locking means (25, 26) arranged to hold the coupling rod (7) in a relative locking position with relative a small depth of penetration with respect to the coupling tube 30 (1i), the coupling tube and the coupling rod being in close proximity to each other in the second locking position at least along two mutually axially spaced abutment areas.