DK151133B

DK151133B - TRANSITIONAL PROTECTION FOR VEHICLES

Info

Publication number: DK151133B
Application number: DK356477A
Authority: DK
Inventors: Ernst Vahldiek
Original assignee: Scharfenbergkupplung Gmbh
Priority date: 1976-08-11
Filing date: 1977-08-10
Publication date: 1987-11-09
Also published as: DK356477A; CH620867A5; DE2636082C2; AT349520B; DK151133C; DE2636082A1; ATA584377A; NL7708824A; BE857681A

Description

i 151133 oi 151133 o

Opfindelsen angår en overgangsbeskyttelse mellem to ved-en automatisk midterpufferkobling indbyrdes forbundne køretøjer, især skinnekøretøjer, og med en overgangsbælg af eftergiveligt materiale, der omgiver overgangen 5 mellem køretøjerne og har en plan enderamme med fra rammen udragende rammekoblinger, hvis mod en fjederkraft udsvin-gelige klo har en udsparing og en skrå endeflade, der danner anslagsflade, og hvor kløerne i indkoblet tilstand med deres udsparing er i indgreb med et stop, der danner 10 modkobling på den tilkoblede overgangsbælg, og hvor der i en fra køretøjets hovedluftbeholder til en trykluftkobling ført ledning er indsat en ventil, som ved mekanisk påvirkning fra midterpufferkoblingens hovedbolt afspærrer lufttilførselen fra hovedluftbeholderen, når kob-15 lingerne er adskilt.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a transition protection between two by means of an automatic center buffer coupling, interconnected vehicles, in particular rail vehicles, and having a transitional bellows of resilient material surrounding the transition 5 between the vehicles and having a flat end frame with frame projections projecting from the frame if spring resilient. the claw has a recess and an inclined end surface forming the abutment surface, where the claws in engaged state with their recess engage with a stop forming 10 countercoupling on the coupled transition bellows, and in which in a from the vehicle's main air container leads to a compressed air coupling conduit is inserted a valve which, by mechanical action from the center buffer coupling main bolt, blocks the air supply from the main air reservoir when the couplings are separated.

Der kendes en overgangsbeskyttelse, hvor rammekoblingens svingelige klo holdes i den tilkoblede og i den til tilkobling bestemte stilling ved hjælp af en trækfjeder. Da der i den tilkoblede tilstand optræder 20 forholdsvis store trækkræfter på rammekoblingen, må trækfjederen være forholdsvis kraftig for at kunne holde rammekoblingen på plads i modkoblingen. Hvis de ved sammenkoblingen af rammekoblingen til rådighed stående trykkræfter er mindre end de største trækkræfter, som 25 fjederen skal kunne modstå i den sammenkoblede tilstand, opnås ganske vist en mekanisk forbindelse af køretøjernes midterpufferkoblinger, men overgangsbeskyttelsen tilkobles ikke, da trykkræfterne ikke er tilstrækkelige til at trykke kloen tilbage, navnlig fordi overgangsbeskyt-30 teisen på grund af det anvendte materiale og den ud over køretøjets.endevæg fremtrukne holdeindretning for overgangsbeskyttelsen er forholdsvis eftergivelig.A transient protection is known in which the pivotal claw of the frame coupling is held in the coupled and in the position to be coupled by means of a tension spring. Since in the coupled state 20 relatively large pulling forces occur on the frame coupling, the tension spring must be relatively strong in order to be able to hold the frame coupling in place in the counter coupling. If the compressive forces available at the coupling of the frame coupling are less than the greatest tensile forces that the spring must be able to withstand in the coupled state, a mechanical connection of the vehicle's middle buffer couplings is obtained, but the transient protection is not enabled as the compressive forces are not sufficient to to push back the claw, in particular because of the transitional protection due to the material used and the transitional protection bracket extended beyond the vehicle's end wall, is relatively resilient.

Fra DE-patentskrift 737 116 er det endvidere ved køretøjer, der sammenkobles med håndkraft, og hvis over-35 gangsbeskyttelse består af en udtrækkelig foldebælg, kendt at påvirke en spredestang for foldebælgen pneumatisk fra en 2Furthermore, from DE patent specification 737 116 it is known in the case of vehicles that are interconnected by hand and whose transition protection consists of a retractable folding bellows, known to affect a spreading rod for the folding bellows pneumatically from a 2

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151133 hovedluftledning over en trevejshane. Når køretøjerne skal adskilles, lukkes trevejshanen, men herved bliver trykket på spredestangen ved at virke, og overgangsbeskyttelsen bliver stående i tilsluttet stilling. Først 5 ved adskillelse af hovedluftledningen mellem køretøjerne falder trykket, og køretøjerne kan fjerne sig fra hinanden. Dette er imidlertid ikke muligt ved skinnekøretøjer, hvor under tryk stående ledninger ikke må adskilles.151133 main air line over a three-way cock. When the vehicles are to be separated, the three-way cock closes, but the thrust bar is pressed into action and the transitional protection remains in the closed position. Only 5 when separating the main air line between the vehicles does the pressure drop and the vehicles can disassemble. However, this is not possible in rail vehicles where pressurized wires must not be separated.

Opfindelsen har til formål at tilvejebringe en 10 overgangsbeskyttelse af den nævnte art, hvor de i det foregående nævnte ulemper er fjernet, og hvor kloen aktiveres på en sådan måde, at den ved adskilte køretøjer ikke er kraftpåvirket, medens den ved sammenkoblede køretøjer er kraftpåvirket og fastholdes til stoppet.The invention has for its object to provide a transient protection of the said kind, in which the disadvantages mentioned above have been removed and where the claw is activated in such a way that it is not affected by separate vehicles while it is powered by coupled vehicles and is held to the stop.

15 Dette formål opnås ifølge opfindelsen ved, at fjederen, der modvirker kloens svingningsbevægelse, er anbragt i en pneumatikcylinder, der er forbundet med ledningen fra hovedluftbeholderen til trykluftkoblingen, og hvis fra cylinderen udragende stempelstang ligger an mod 20 kloen og trykker denne i retning mod sin indkoblingsstilling, og at cylinderen, når lufttilførselen er afbrudt af den af midterpufferkoblingens hovedbolf styrede ventil, afluftes gennem sin lufttilførselsledning, ventilen, som har to ventilsæder, og trykluftkoblingen.This object is achieved according to the invention in that the spring, which counteracts the oscillation movement of the claw, is arranged in a pneumatic cylinder which is connected to the conduit from the main air container to the compressed air coupling, and if the piston rod projecting from the cylinder abuts against the claw and pushes it towards its when the air supply is interrupted by the valve controlled by the center buffer of the central buffer coupling, the cylinder is vented through its air supply line, the valve having two valve seats and the compressed air coupling.

25 Herved opnås, at rammekoblingens klo ved hjælp af trykluften med tilstrækkelig kraft holdes i sin tilkoblingsstilling, når midterpufferkoblingens hovedbolt står i koblingsstilling, hvor ventilen er åben for tilførsel af trykluft til cylinderen, og at kraftpåvirkningen på 30 kloen ophører, så rammekoblingen kan frikobles, så snart midterkoblingens hovedbolt drejes hen i frikob.lingsstilling, hvor cylinderen kan afluftes gennem ventilen.Hereby, the clutch of the frame clutch is obtained by means of the compressed air with sufficient force held in its coupling position when the central buffer clutch's main bolt is in the clutch position, where the valve is open for supply of compressed air to the cylinder and the force of the claw is stopped, so that the clutch can be released. as soon as the center clutch main bolt is turned into the release position where the cylinder can be vented through the valve.

Opfindelsen skal i det følgende forklares nærmere under henvisning til tegningen, der viser en i overens-35 stemmelse med opfindelsen udformet overgangsbeskyttelse, idet tegningens øvre halvdel viser overgangsbeskyttelsen 3The invention will be explained in more detail below with reference to the drawing, which shows a transitional protection formed in accordance with the invention, the upper half of the drawing showing the transitional protection 3.

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151133 i den koblede stilling, medens tegningens nedre del viser overgangsbeskyttelsen i den frikoblede stilling.151133 in the coupled position, while the lower part of the drawing shows the transition protection in the uncoupled position.

Overgangsbeskyttelsen, der danner en personovergang fra ét køretøj til et andet, omfatter en bælg 1 af 5 eftergivende materiale og er ved sin ene ende fastgjort til køretøjets endevæg, medens dens anden, frie ende er afsluttet med en enderamme 2. Til automatisk, udløselig forbindelse af enderammen 2 på et køretøj med enderammen på et andet køretøj er der på hver side af enderammen og 10 i samme afstand fra rammens vandrette midterplan og forskudt indbyrdes i højderetningen anbragt automatiske rammekoblinger a og i forhold til disse om det vinkelret på rammen liggende lodrette midterplan spejlvendt anbragte modkoblinger b. I den viste udførelsesform består ramme-15 koblingen a af en fortrinsvis omkring en lodret bolt 3 udad svingelig klo 5, der er forsynet med en udsparing 4, der kan gribe om modkoblingen b, der består af et stangformet stop 6. På enderammen 2 er fastgjort en arm 7, som bærer en pneumatikcylinder 8, hvis fjederbelastede 20 stempelstang 9 er indrettet til at ligge an mod kloen 5 under trykpåvirkning fra en fjeder 10, som i den frikob-lede stilling hindrer et for kraftigt udsving af kloen 5. Cylinderen 8 er via en ledning 11 forbundet med et i en midterpufferkobling 12 anbragt ventilhus 13, som forbin-25 der en fra køretøjets hovedluftbeholder forløbende ledning 14 med en til en trykluftkobling førende ledning 15. I ventilhuset 13 er der indbygget et ventillegeme 16, hvis spindel er styret i ventilhuset 13.The transition guard, which forms a personal transition from one vehicle to another, comprises a bellows 1 of 5 resilient material and is secured at one end to the vehicle end wall, while its other free end is terminated by an end frame 2. For automatic releasable connection of the end frame 2 of a vehicle with the end frame of another vehicle, on each side of the end frame and 10, at the same distance from the horizontal median plane of the frame, and automatically displaced between the vertical frame couplings a and relative thereto perpendicular to the frame perpendicular to the frame. In the illustrated embodiment, the frame coupling a consists of a pivotal claw 5 which is preferably pivotable outwardly about a vertical bolt 3, which is provided with a recess 4 which can grip the counter-coupling b consisting of a rod-shaped stop 6. Attached to the end frame 2 is an arm 7 which carries a pneumatic cylinder 8, whose spring loaded 20 piston rod 9 is arranged to abut against the claw 5 under pressure from a spring 10 which in the uncoupled position prevents excessive swinging of the claw 5. The cylinder 8 is connected via a conduit 11 to a valve housing 13 arranged in a central buffer coupling 12 which connects a the main air reservoir of the vehicle extending conduit 14 with a conduit 15 leading to a compressed air coupling 15. In the valve housing 13 a valve body 16 is installed, the spindle of which is guided in the valve housing 13.

I den viste, frikoblede stilling er ventillegemet 30 16 trykket tæt mod mundingen af den fra hovedluftbeholderen kommende ledning 14 ved hjælp af en på hovedbolten 17 i midterpufferkoblingen 12's koblingslukke fastgjort næse 18, hvorved en afgangsledning 15 og ledningen 11 udluftes via trykluftkoblingen, og kloen 5 kan bevæges frit. Når 35 midterpufferkoblingen 12's koblingslukke bevæger sig fra den frikoblede til den tilkoblede stilling, svarer dette, 151133In the shown disengaged position, valve body 30 16 is pressed tightly against the mouth of the conduit 14 coming from the main air reservoir by means of a nose 18 attached to the main bolt 17 in the middle buffer coupling 12, whereby a discharge line 15 and the conduit 11 are vented via the compressed air coupling and the claw 5 can be moved freely. When the coupling cap of the center buffer coupling 12 moves from the decoupled to the coupled position, this corresponds,

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4 som vist på tegningens øvre halvdel, til at hovedbolten 17 drejes i retning med uret. Ventillegemet 16 er herefter ikke lasngere påvirket af næsen 18, og luften trykker ventillegemet 16 tilbage og strømmer fra ledningen 14 5 ind i ledningerne 11 og 15, hvorved cylinderen 8 aktiveres og trykker kloen 5 til den tilkoblede stilling, hvori den fastholdes.4 as shown in the upper half of the drawing, for the main bolt 17 to be turned clockwise. The valve body 16 is then no longer affected by the nose 18, and the air pushes the valve body 16 back and flows from the line 14 5 into the lines 11 and 15, thereby activating the cylinder 8 and pushing the claw 5 to the engaged position in which it is held.

Claims

1. Transition protection between two interconnected vehicles, in particular rail vehicles, by means of an automatic center buffer coupling and with a transition bellows (1) of 5 resilient material surrounding the transition between the vehicles and having a flat end frame (2) with frame couplings projecting from the frame (a), if a spring-swinging claw (5) has a recess and an inclined end surface forming the abutment surface, and where the claws (5) in their engaged state with their recess engage a stop (6) forming counterclockwise (b) on the coupled transition bellows, and in which a conduit (14) is fed into a conduit (14) from the main air container of the vehicle, which, by mechanical influence from the central buffer coupling main bolt (17), blocks the supply of air from the main air container when the couplings are separated, characterized in that the spring (10) which counteracts the swinging motion of the claw (5) is arranged in a pneumatic cylinder (8) connected to the head (14) 20 from the head the air container for the compressed air coupling, and if the piston rod (9) protruding from the cylinder abuts against the claw (5) and pushes it in the direction towards its switch-on position, and that the cylinder (8) when the air supply is interrupted by the central bolt coupling head (17) 25 valve (16) is vented through its air supply line (11), the valve (16) having two valve seats, and the compressed air coupling.

Transition protection according to claim 1, characterized in that the cylinder (8) and the claw (5) are connected to the end frame (2) over a common arm (7).