DE2556513A1 - CENTRAL BUFFER COUPLING HEAD FOR RAIL VEHICLES - Google Patents

Description

f .. ΗονιίΙΐΐιΗϊΓ 1 Z ₁

^r : T-ro

KNORR-BBEMSE - Berlin and Munich 8000 Munich 40, Moosacher Str. 80

Central buffer coupling head for rail vehicles

The invention relates to a central buffer coupling head for rail vehicles according to the features mentioned in the preamble of claim 1.

In the case of rail vehicles also comprising goods vehicles, essentially two different ones could hitherto be found Types of central buffer couplings prevail: those mainly used in American countries Janney clutch and the Willison clutch introduced in the USSR. The one from the European Union of Railways (UIC) for the introduction of the European railways planned center buffer coupling represents a modernized .Willison coupling, which is used for training as a rigid coupling and to enlarge the capture area with a guide horn and a counterpart Apron is provided.

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The principle of the Willison coupling basically has some advantages over the principle of the Janney coupling on:

The Willison coupling is more robust because the tensile and compressive forces are applied directly to the coupling body are transmitted and not via movable spacers;

the Willison coupling has the same main dimensions a larger catching or gripping area;

the Willison clutch has one regarding the Railway operation more favorable mode of operation, since after uncoupling only one of two coupled Coupling heads Both coupling heads are automatically ready for coupling after disconnection, when Janney coupling, on the other hand, the second coupling head was first brought into a position ready for coupling by hand must become.

The introduction of clutches after the more advantageous Willison Principle hits with those railroad administrators to difficulties in which couplings based on the older Janney principle are already being used, as couplings according to one principle cannot be coupled with couplings according to the other principle.

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The object of the invention is to provide a coupling coupling f according to the generic term -les Hauptanaprucheis to create, with a simple, x'obustem structure both with mating coupling heads of the same design as well as with coupling heads according to the Willison principle and continue to do so can be coupled with coupling heads according to the Janney principle.

By means of such a central buffer coupling head, the railway administrations, where previously Janney couplings were used, the possibility of a gradual changeover without any operational disadvantages bid on Willison clutches;

The new vehicles to be purchased will be equipped with the central buffer coupling heads to be created, to all vehicles carrying Janney couplings have been taken out of service for reasons of age or other reasons. Afterward Vehicles to be procured can be equipped with a Willison clutch. After the with

to
den'schaffenden Mittelbufferkupplungskopfen equipped vehicles, for example due to reasons of age, the complete conversion to Villisori couplings has been completed. To accelerate the changeover, vehicles can of course also be converted from Janney couplings to J ie couplings to be created. During this

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The whole changeover is included, all vehicles in each case any and without any operation detachable.

The center Ipufi'e rkupplungskop f to be created is also for the permanent equipping of the vehicles of a railway administration suitable, which are coupled with each other with significant advantages of the Willison principle should, but also with Janney couplings carrying vehicles of a neighboring railway administration and possibly at the same time also bearing Willison couplings Vehicles belonging to a third railway administration should be able to be coupled.

The object on which the invention is based is achieved according to the invention by what is stated in the characterizing part of the patent claim 1 specified features solved-

DT-PS 1 182 284 already has a central buffer coupling the Willison type known, which corresponds to the generic term of the main claim, but ijt these, in the absence of training according to the characteristic features of the main claim, only with themselves or Willison couplings designed differently, but not connectable with Janney couplings.

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Due to the features according to patent claim J> , in a further embodiment of the invention, the contact of the Ctoß claw on the base of the coupling mouth of a coupled Janney coupling can be improved and thus the wear can be reduced.

Furthermore, the power transmission can be coupled to a Janney coupling is further improved and the security against unintentional disconnection is increased, if the features mentioned in claim 4 are provided. The position of the extension results no difficulties in coupling with similar or Willison coupling heads.

In a further embodiment of the invention, when coupled to a Janney coupling head, a disruptive lateral swinging of the pulling claw and at the same time a further safeguard against unintentional uncoupling by the in claim ^ specified features can be achieved.

The feature specified in claim 6 ensures that the coupling head always assumes the coupling ready position in the uncoupled state and continues to secure an always vibration and rattle-free holder of the pulling claw.

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In the features of claims 7 to 16 are particular expedient training and further developments of the locking and actuating gear specified, according to claim 10 for actuating the locking mechanism of a similar, coupled coupling head an already for actuation often provided by pipeline shut-off elements and thus known per se and therefore not in detail further to be explained principle is provided. By training according to claim 15 it is achieved that by manually turning the cam back, the detent can be lifted out of its locked position and, after an erroneous one Decoupling, a renewed coupling is possible without separating the neighboring vehicles in the meantime.

If, in a further embodiment of the invention, the pulling claw is stored in accordance with the features recited in claim 17, the pulling force is loaded on the pulling claw a torque acting on the pulling claw in the pivoting and thus closing direction. An unwanted one Uncoupling under tensile stress is therefore excluded and the pulling claw locking in this position Locking gear can be made weak and simple accordingly.

If, however, also in a further embodiment of the invention, the central buffer coupling head according to the in

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Claim 18 and optionally 19 cited features are designed, are at ai * tensile load the pulling claw the locking surfaces are pressed together positively and the pulling force is Transferred over these surfaces from the pulling claw under the environment and relief of their pivot bearing on the coupling head housing.

Due to the known features specified in patent claim ZO , a rigid coupling desired for coupling lines can be achieved and at the same time the gripping and catching range of the coupling head can be increased significantly.

The features listed in the further patent claims not mentioned in detail above are used also the practical, simple and robust design of the central buffer coupling head.

The subject matter of the invention is explained below with reference to schematic drawings. Show it:

Fig. 1 is a schematic diagram of a designed according to the invention Central buffer coupling head in plan,

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Pig. 2 the central buffer coupling head according to FIG. 1 in the coupled state with a like Mittelbufferkupplurigskc-pf,

FIG. 5 shows the central buffer coupling head according to FIG. 1 when coupled with a Janney coupling head,

4 shows an embodiment of the locking mechanism,

FIG. 5 shows a side view in the direction of arrow I according to FIG. 4 the blocking lever and the lever parts cooperating with it, and

FIG. 6 shows a side view in the direction of arrow I according to FIG. 4 the actuating device omitted there for the sake of simplicity.

According to Fig. 1, a coupling head housing 2 is attached to a coupling rod 1 only partially shown, which at its front limit in a lateral area rigidly carries a pushing claw 3 ″, which essentially is shaped like a vertical prism. Below the pushing claw 3, the housing 2 carries a conventional, Guide horn 4 protruding obliquely to the front and to the side with an end face ;; - and not in detail shown, beveled surface sections.

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The pushing claw 3 corresponds in the area of its front surface 6, outer side surface 7 and rear surface 8 essentially a common push claw of a Willison clutch head it; At the transition from the front surface 6 to the outer side surface 7, however, it has a rounding 9 with a large, approximately 1/5 of its depth measured in the longitudinal direction of the coupling corresponding to the radius of curvature on. At its inner, lateral boundary, the pushing claw 3 carries a to in a front section outer side surface 7, flat plate portions 10 running parallel to each other, at which point backwards a recess 11 connects. The shape of the recess 11 corresponds to the front section of the pivoting claw a Janney coupling head, its wall is approximately at right angles to the surface section 10 and runs arc-like with an essentially steadily increasing radius of curvature in an end wall 12, which approximately at the rear boundary of the pushing claw 3 and the middle front area of the housing to the front. The vertical end wall 12 is rearward with a radius of curvature of the vertical

<kai recess 11 penetrating the entire pushing claw 3 bent at the transition to the end face 12 corresponding radius of curvature. At the recess 11 facing away from the end face 12 is then

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The area at the curvature is provided with a flat and vertical surface section 13 which is narrower than the latter and which extends to the side approximately parallel to the front surface 6 of the pushing claw -j in a step-like manner attached to the curvature. Underneath a pulling claw 14, a rigid, obliquely outwardly projecting extension 15 and its vertical wall 16 facing the coupling longitudinal axis 19 at the angle of the pivoting claw-side outer wall 17 of a Janney coupling shown in FIG exceeding 'angle of about 30 ° to the coupling longitudinal axis 19 is inclined to the front-outside. The wall 16 is located outside the area of a swivel claw 20 of the Janney coupling head 18 that engages in the recess 11 ′ according to FIG Coupling head housing 2 over.

According to FIG. 1, the pulling claw 14 is towards the end face 12 Somewhat set back, pivoted horizontally on the housing 2 by means of a vertical bolt. She corresponds in its front section essentially the pulling claw of a conventional Willison coupling, so it has a hook portion 23, which protrudes in the direction of the coupling longitudinal axis 19, with a strongly rounded

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Hook tip 24 and a hook inner surface 25. The front wall 26 of the pulling claw 14 runs obliquely forward-outwardly. The rear part of the pulling claw 14 is formed by a lever-like section 27 which runs obliquely backwards-inwards, has the bearing eye for the bolt 22 near its end and is provided with a nose 28, between which and a support 29 fixed to the housing, a compression spring 30 is clamped. Illustrated, the compression spring 30 examines the pull clamp 14 from its in FIG. 1 by drawn, pivoted-in position in a dash-dotted lines by reference numeral 14 ^1, outer bsw. to rotate the swiveled-out position. In both positions, stops, not shown, prevent further rotation of the pulling claw 14, so that it can only be pivoted within the range determined by the positions shown under 14 and 14 '.

Furthermore, the housing 2 contains a locking and an actuating gear, which in Fig. 1 with the exception of Head area 31 of a plunger is not shown, of which a particularly useful embodiment however, is described later. With the mating coupling head present, the pulling claw 14 can be operated by means of the locking gear in the position shown in solid lines in FIG. 1 and in an intermediate position 14 "shown in Fig. 3"

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between the two in Fig. 1 under the reference numerals. 14 and 14 'shown end positions are locked against pivoting. When removing the mating coupling head this lock is released automatically. Furthermore, the locking mechanism works when a mating coupling head is inserted an automatic pivoting of the pulling claw 14 'from its pivoted position into one of the under the reference numerals 14 ″ or 14. By means of the actuating gear, if the Counter-coupling head the locking gear, if necessary also that of the mating coupling head in its unlocked position and the pulling claw in its swiveled out position Position 14 · can be brought. If necessary, enabled the actuating gear then a return of the pulling claw to that shown under the reference numeral 14 Position and re-engagement of the locking mechanism.

The housing 2 is set back from the pulling claw 14 its underside is a sloping backwards-outwards Apron 32, the front and partially upper boundary surfaces complementary to the end face 5 and possibly the beveled surface parts of the Leadership should conform to 4. The .guide horn 4 and the skirt 32 of a coupled counter-coupling head act in the manner known from Willison couplings together to exclude vertical displacement of the coupling heads.

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The extension 15 is shown in Fig. 1 as below the pulling claw 14 shown running. However, it is also possible to additionally or only above the pulling claw 14 an in its shape the extension 15> corresponding extension to attach.

In the uncoupled state that is ready for coupling, the coupling head assumes the position indicated in FIG. 1 with the pulling claw 14 'pivoted out to the side. When coupling with a similar mating coupling head, as shown in Fig. 2 under d ⁿ r, reference numeral 2a, the pushing claws 3 »3a slide into the adjacent position shown in FIG. 2, and the pulling claws 14 and 14a are in the rotated pivoted position, in which they engage behind the pawing surface 8 or 8a of the respective other pushing claw 3 or 3a, and locked in this position. The surface sections 10 and 10a of the pushing claws 3 and 3a are in contact with one another. Tensile stresses on the coupled coupling heads are transferred via the pulling claws 14 and 14a to the rear surfaces 8a and 8 of the pushing claws 3a and 3, with the surface sections 10 and 10a being compressed by tensile force components due to the inclined position of this force transmission to the longitudinal axis of the coupling. In the event of pressure loads, the impact claws 3 and 3a rest against the end faces 12 and 12a, in particular their sections

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13 and 13a as well as the root area of the rest of the in Fig. 2 not shown extensions 15 and 15a. The power transmission is therefore very similar to that of Willison clutches.

For uncoupling, the pulling claws 14 and 14a are unlocked by means of the actuating gear, whereupon they move to the side Swing out and pull the hitting claw 3a or 3 release.

Play with a WiHison coupling head when coupling the same processes as described above relate to the coupling head according to the invention. The Willison coupling head retains its functionality: it shifts in the last phase of the coupling process somewhat laterally, so that its rigid pulling claw arrives in a position engaging behind the pushing claw 3. Afterward his coupling bolt can occur and by attachment to the Surface section 10 complete the coupling process. The locking gear of the Willison coupling head is used for uncoupling actuated, whereupon the coupling heads separated after retraction of the coupling bolt can be. The spring 30 then pivots the Pulling claw 14 to the side.

When coupling with a Janney coupling 18, the pivoting claw 20 thereof is moved into the starting position, as can be seen in FIG.

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recess 11 swiveled in, while the pulling claw 14 " is locked half-pivoted in the position shown resting against the outer wall 17. The wall 16 of the extension 15 prevents it, possibly in cooperation with the plant of the hook tip 24 on the Wall 17 $ the swivel claw slips out to the side 20 from the recess 11. The tensile forces are from the front wall area of the recess 11 of the Pushing claw 3 transferred to the swiveling claw 20 or vice versa, while the pressure forces through the system of Swivel claw 20 on the edge areas of the end face and / or by contact in particular the rounded one Area 9 of the pushing claw 3 at the bottom 33 of the coupling mouth the Jenney coupling 18 are transmitted.

For decoupling, the Janney coupling 18 is brought into its decoupling position, whereupon it is pivoted forward their swivel claw 20 can be separated from the coupling head according to the invention. With this separation the pulling claw 14 ″ pivots under the force of the spring 30 back into the outermost position according to reference numeral 14 'in FIG.

The locking mechanism can preferably have the structure shown in FIGS. 4 and 5. According to Fig. 4 is on the pulling claw 14 pivoted about the vertical bolt 22 'on the housing 2 at the rear end thereof

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an approach 34 attached, the same direction and approximately cantilevered parallel to the hook portion 23 and one of the Has the inner surface 25 of the hook facing and parallel to the front wall 35. The approach 34 is from one U-shaped blocking lever 36 shown in a view in FIG Only indicated horizontal bolt 37 near the attachment of its rear leg 38 rotatable in the housing 2 is stored. The axial direction of the approach 3 ^ · ia Housing 2 set back bolt 37 extends in the completely pivoted-in position shown in FIG Position of the pulling claw 14, as it corresponds to the coupling state with a coupling head of the same type, parallel to the front wall 35 · The front leg 39 of the blocking lever 36 has two sections at its end 40 and 4-1 of different widths, which follow one another in a step-like manner. In the illustrated pivot position of the Zugklaue 14 lies the Voider surface 35 on the inner wall 42 of the wider portion 40; the pulling claw is in the half-pivoted position shown in FIG brought, so on the front wall 35 with the blocking lever 36 turned up a little, the inner wall 42 slightly forward offset inner wall 43 of the narrower section 4-1 are applied. The front face 44- of the blocking lever is in the position shown in Fig. 4 and 5 with a small clearance, the only pivoting

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also slightly horizontally displaceable with play the locking lever 36 mounted on the bolt 37 must enable a surface 45 of an abutment fixed to the housing 46 opposite, which is arranged closely behind the end wall 12. The front wall 351 inner wall 42, Front surface 44 and surface 45 run parallel to one another and have a common center perpendicular which is approximately aligned with the vertical center line of the inner surface 25 of the hook. The inner wall 43 is the Position of the front wall '35 adapted with the pulling claw 14 pivoted out halfway. The spring 30 is between the housing 2 and a section of the pulling claw 14 projecting backwards beyond the bolt 22 '.

In the housing 2 is a plunger 4? stored, the head part 31 in the mouth opening the coupling head protrudes and on his rear end has a horizontally and at right angles projecting arm 48, which the rear leg 38 of the blocking lever 36 engages behind. A compression spring 49 is clamped between the plunger 47 and the extension 34- whose force is sufficient to push the plunger 47 forward in such a way that the arm 48 over the leg

38 the blocking lever 36 until the leg is lifted out

39 from the space between the approach 34 and the abutment 46 swings up. The plunger 47 is in FIG. 4 in

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the position depressed by a coupled counter-coupling of the same type.

Near the rear end on the guide horn side, an L-shaped angle lever 50 is in one on the housing 2 Mounted rotatably in the horizontal plane, the longer leg 51 of which extends forward to just behind the rear surface 8 of the pushing claw 3 and its other leg follow this approximately at right angles ^ to the arm 48 offset below until behind the leg 38 of the locking lever 36 extends. One, between the legs 52 and the spring 53 clamped in the housing 2 loads the angle lever 50 in such a way that it moves clockwise as shown in FIG seeks to rotate, the blocking lever 36 being rotated in the lifting direction via the leg. In one the blocking lever 36 only with its narrower one Section 41 in the space between the approach 34- and the Abutment 46 holding position is the leg 52 through Plant a nose 54- on a housing-fixed stop intercepted. On the leg 51, the one in FIG. 4 can be shown in phantom indicated hook portion 23 of the pulling claw of a similar mating coupling head is pressed be, whereby the angle lever 50 against the force the spring 53 is rotated into the position shown in FIG. 4, releasing the blocking lever 36.

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Furthermore, an actuating device is arranged in the housing 2, but the parts thereof in FIGS. 4 and 5 are not are shown. When viewed in the direction of the arrow T 4, the transmission of the actuating device according to FIG. 6 has an approximately parallel to extension 54, in Fig. 4 indicated as an axis shaft 56, which by means of a conventional linkage, not shown Is mounted arbitrarily rotatably on the housing 2. The shaft 56 non-rotatably carries a first cam 57 »the one in Direction of rotation 58 continuously increasing for uncoupling Has outer surface 59 and below a laterally protruding from the leg 39 in the direction of the plunger 47 Nose 60 and located below the tappet 4-7. Furthermore, the stick 57 has an approximately radial one Blocking surface 61, which is in the uncoupling position located cam 57? so in the actuation position of the cam 57 and when pushed back by a coupled counter-coupling by its abutment on the head part 31 The plunger 47 to rest against the end face 62 of a notch 63 able. The catch 63 extends forward and is rotatable with its base end about a horizontal pin 64 hinged on the ram 47. A spring 65 loads the catch 63 in the direction of pressure on the cam 57 · The end face 62 is inclined in such a way that they act on cam 57 when a certain limit value is exceeded Torque in the reverse direction opposite to the direction of the arrow

709826/0017 " ²⁰ "

58 is pressed upwards from the locking surface 61, so that the bast 63 is raised against the force of the spring 65 and disengages from the locking surface 61. The cam 5? is by means of a not shown, under gravity or spring force device constantly with a value falling below this limit Torque loaded in the reverse direction.

In a departure from this, the end face and the blocking face 62 and 61 or only the latter around one exceeding the heibwinkel between the two surfaces Be arranged inclined to the direction of movement of the locking surface 61 at the beginning of the reverse rotation.

On the shaft 56 there is a second cam 66, the with a nose 67 of the pulling claw that engages under the shaft 56 14 is able to work together in their pivoting direction. The nose 67 protrudes as can be seen from FIG parallel to the extension 34 and offset slightly forward from the pulling claw 14 in relation to it.

When coupled with a similar mating coupling, the parts of the locking and actuation- transmission the apparent from Fig. 4 to 6 layers. The pulling claw 14 is here by engaging the wider one Section 40 of the locking lever leg 39 i & the space

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between the approach 34 and the abutment 4-6 against unwanted Swiveling out and thus uncoupling secured.

If the shaft 56 is used for decoupling in the direction of actuation - Arrow direction 58 - rotated, the cam outer surface 59 lifts the leg 39 out of the space between the approach and abutment 46 with a corresponding rotation of the blocking lever 36. The cam 66 presses against it the nose 67 and via this presses the pulling claw 14 against the force of the spring 49, but supported by the spring 30, which is much weaker than that, into theirs completely swiveled position to the side. As soon as the fully actuated rotary position of the cam 57 is reached, the catch 63 falls behind the locking surface 61 and the shaft 56 is held in its rotational position.

On the mating coupling head, the angle lever there is free by pivoting the pulling claw 14, whereby ^ how described later, whose pulling claw is also unlocked and released for swinging out. So that's a position ready for separation reached.

If the two coupling heads are now separated, the coupling heads move apart via the inclined rear surface 8 of the pushing claw 3 a pivoting out of the unlocked pulling claw of the mating coupling head. Furthermore, the spring 49 can follow the plunger 47

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push forward, largely relaxing it. The arm 48 comes to rest on the leg 38 of the Blocking lever 36 and holds it in the raised position Location. At the same time, via the pin 64, the hatch 63 with the plunger Λ7 is displaced forward, with the forehead and the locking surface 62 and 6/1 get out of engagement and the shaft 56 together with the cams 57 and 66 under the The reverse rotation force constantly acting on them rotate back into their initial position shown in FIG. 6.

When the pulling claw of the mating coupling head is pivoted out, the angle lever 50 becomes free and rotates under the Force of the spring 53 until the nose 54 rests against the stop 55 · This means that the coupling head is in a position ready for coupling that is suitable for a new coupling.

If, starting from the coupled state according to Fig. 4, the actuating gear of the counter-coupling head is actuated, so when pivoting out of its pulling claw the angle lever 51 is free and rotates as described above until the wider section 40 of the blocking lever is lifted out. During the subsequent separation of the coupling heads If the plunger 47 moves forward, the blocking lever 36 is completely lifted out by the arm 48 and the spring 30 rotates the pulling pawl 14 all the way out. With this a complete separation is possible and the coupling head is in its position ready for coupling.

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When coupling with a similar or a Willison coupling head the plunger 47 is pushed back, the spring 49 pushing the pulling claw 14 against its load by the spring 30 and, if necessary, the spring 53 of the counter-coupling head for grasping the pushing claw of the Mating coupling head swivels in. The angle lever 50 is thereby through the hook portion 23 of the mating coupling head against the load by the spring 53 in the Rotated position shown in Fig. 4. The blocking lever 36 is completely free and falls under the force of gravity with its wider section 40 between the extension 34 and the abutment 46, whereby the pulling claw 14 is locked in its fully pivoted position. The coupling state is thus achieved.

When coupling with a Janney coupling, the pulling claw 14 is pushed over the spring by pressing in the plunger 47 half into that which can be seen from FIG. 3, through the installation of the pulling claw 14 on the outer wall of the Janney coupling pivoted in a certain position. The blocking lever 36 falls up to the abutment of his leg 38 on the angle lever 50 intercepted by the stop 55, being narrower section 41 enters the space between the projection 34 and the abutment 46 and thereby the pulling claw 14 locks against unintentional pivoting. The angle lever 5 prevents the pivoting

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wider section 40 of the locking lever, as in Entry of a far swiveled swivel claw of the Janney coupling into the coupling jaw after it has been completely swiveled in the pulling claw 14 might otherwise be possible. The 'pulling claw can be used in the further course of the coupling In any case, be pushed back into the half-swiveled position, thereby avoiding damage and ensuring a proper one Sequence of the coupling process is ensured.

The uncoupling during mixed coupling with a Willison or Janney counter-coupling takes place, as already described in that these mating couplings are brought into their release positions.

During the separation, the preceding plunger 47 lifts the Blocking lever 36 out and the spring 30 pivots the pulling claw 14 out.

If the aforementioned position ready for separation was incorrectly set, the shaft 56 can with a certain Effort can be turned back. The locking surface 61 presses obliquely on the end face 62, so that this while lifting the catch 63 is pushed up and the cam 57 is released. Then all parts arrive when the shaft 56 is rotated back into the position shown in FIG. 4 depicted situation. This is the clutch status again set.

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According to the information given above, the .springs to be dimensioned in such a way that the spring ^ 5 is strong enough is to lift the blocking lever 36, the spring 30 must open the pulling claw 14, i.e. can swing out and the Spring 49 must be strong enough to take into account of the lever transmissions overcome the springs 53 and 30 and thus a closing, i.e. pivoting of the pulling claw 14 to be able to effect.

In the embodiment according to FIG. 4, the bolt 22 is opposite the direction in which the pulling claw engaged with a similar or Willison counter-coupling 14 is subjected to tensile forces, arranged slightly offset to the outside of the clutch. Try the tensile forces mentioned therefore to rotate the pulling claw 14 outwards, with the surfaces 35, 42, 44 and 45 are pressed flat against each other and the tensile forces transferred from the pulling claw 14 to the housing 2. The bolt 22 * is therefore largely from the coupling tensile forces relieved.

In a modification of this, however, it is also possible to move the bolt 22 according to FIGS. 1, 2 and 3 in relation to the tensile force • load direction to arrange the pulling claw somewhat offset towards the coupling longitudinal axis 19. The tensile forces then result in a swiveling-in direction of the pulling claw 14

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acting torque on this. In this training, however, the locking mechanism must be designed in such a way that that when the actuating gear of a coupling head is actuated, the pulling claw of the mating coupling head is forcibly swiveled out.

For this purpose, on the housing 2 in the indicated in Fig. 4- Way by means of a transmission not shown

a plunger 68, which serves as a coupling linkage when actuating the actuating ^{gear v, is} advanced, which reaches the area of the counter-coupling head and there actuates a gear mechanism which causes the required function - pivoting out the pulling claw.

In the arrangement according to FIG. 4 · it is also possible to use the Plunger 68 only for lifting the blocking lever of the Gegenkupp ment skopf it by means of a suitable gear in to use this. The angle lever 51 with the spring can then possibly be omitted.

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Claims (1)

-1289- Claims Λ. j Central buffer coupling head for rail vehicles, at its front boundary in one side area a rigid impact claw with essentially a vertical prism-corresponding i'orm, in the middle area a vertical, almost perpendicular to the longitudinal axis of the coupling attaching to the rear boundary of the impact claw Wall and in the other side area has a hook-like pulling claw which is rotatably mounted about a vertical axis and which in the swiveled-in state with its front hook section protruding in the direction of the longitudinal axis of the coupling; the rear surface of the pushing claw of a mating coupling head with a Willison profile is able to at least partially engage behind and can be fixed in this position by locking members, characterized in that in the area of its front, outer side and rear surface (6, 7 and 8) essentially one - 28 - 709826/0017 equivalent to a pushing claw of a Willison coupling Outline having ßtoßklaue (3) on its inner α Side surface on a front, parallel to the outer side surface, flat surface section (10) then has an approximately right-angled, arc-like recess (11) which is vertical the whole pushing claw penetrates and one of the front section of the pivoting claw (20) of a Janney coupling head (18) has a corresponding shape and its wall into the rearwardly curved end wall (12) passes. 2. Central buffer coupling head according to claim 1, characterized in that the The wall of the recess (11), starting from the flat surface section (10), is essentially continuous with it enlarging radius of curvature is curved and its radius of curvature at the transition to the end wall (12) about whose radius of curvature corresponds. 3. Central buffer coupling head according to claim 2, characterized in that the Pushing claw (3) at the transition from its front to the outer side surface (6 or 7) has a rounding (9) with a large Has radius of curvature. - 29 - 709826/0017 4. central buffer coupling head according to claim 1 or 2, characterized in that in the area of the pulling claw (14) this vertically and / or reaching under a rigid, obliquely outwardly forward protruding extension (15) facing wall (16) attaches to the end wall (12) and is inclined at an angle of approx. 50 ° to the longitudinal axis of the coupling outside the area of a swivel claw of a Janney coupling head that engages in the recess this runs towards the front-outside, touching at most in their front, outer angled area. 5. Central buffer coupling head according to one or more of the preceding claims, characterized that the pulling claw (14) is in a central pivot position by means of the locking members (14 "), in which your hook area (23) with its rounded hook tip (24) on the side flank (17) one with its swivel claw (20) in the recess engaging Janney coupling head (18) is able to rest against further pivoting can be locked to the side. 6. central buffer coupling head according to claim 5 »characterized in that a the pulling claw (14) is provided constantly loading the spring (30) in the swing-out direction. 709826/0017 ~ ³ ° ~ 7- central buffer coupling head according to claim 6, characterized in that the Pulling claw (14) at its rear end approximately at right angles to its longitudinal direction and in the same direction has projection (34) protruding towards its hook area (23), the front wall thereof facing the hook area (35) one in the coupling head housing (2) rigid arranged abutment (46) is opposite that the approach of an approximately vertically crossing it, U-shaped locking lever (36) is overlapped, which, based on the pivoted pulling claw, to a The horizontal axis of rotation (37), which runs approximately in the longitudinal direction of the attachment and is set back from the attachment, is pivotable is hinged to the coupling head housing and its front leg end has two sections (40, 41) different Has width that positively delimiting the Auswenkwxnkel the Zugklaue between the Ansatζ front wall and the abutment can be swiveled in are that an approximately parallel to the blocking lever horizontally displaceable plunger (47) is provided, the on the one hand with the central buffer coupling head uncoupled in the space between the pushing and pulling claws (3 and 14) in front of the end wall (12) and on the other hand, engaging behind the rear leg (38) of the blocking lever ends, the blocking lever in a rotational position by resting its rear leg on the plunger - 31 - 709826/0017 2S56513 -Γ ' is held, in which its front leg (39 ) is lifted out of the fiaum between the extension and the abutment, that between the plunger and the extension a compression spring (49) that loads the former in the direction of displacement forward and the latter in the pivoting direction is clamped and that an actuating device is provided by means of which the front leg of the blocking lever can be arbitrarily lifted out of the space between the extension and your abutment. 8. central buffer coupling head according to claim 7i, characterized in that the The plunger (47) at its rear end is approximately one cantilevered at right angles, engaging behind the rear leg (38) of the blocking lever (36) Has arm (48). 9. Central buffer coupling head according to claim 7 or 8, characterized in that a coupling linkage is provided which with the Actuating device is coupled and when actuated also the locking lever with your central pouf coupling head of the same type of counter coupling head. - 32 - 709826/0017 10. central puff Erkupplurigskopf according to claim 9 »characterized in that daü Coupling rods move into the area of the mating coupling head when the actuating device is actuated displacing and thereby lifting the blocking lever out via a lever mechanism tappet (68). 11. Central buffer coupling head according to claim 9i, characterized in that a L-shaped angle lever (50) is provided, the hub its apex rotatable about a vertical axis on the coupling head housing (2) near its abutment claw side rear end is hinged, with the longer leg (51) to the front to close to the rear surface (8) of the pushing claw (3) and the shorter leg (52) extends the rear leg (38) of the blocking lever (36) engages behind and is loaded against it by means of a spring (53) in the pressing direction. 12. Central buffer coupling head according to claim 11, characterized in that the Angle lever (50) in one of the. Blocking lever (36) in its position of engagement with the narrower end area (41) of its front leg (39) in the space between the approach (34-) and the abutment (4-6) holding Position against further rotation in the lifting direction of the blocking lever intercepted by a stop (55) is. 709826/0017 _ ₅₅ _ 13 · Central buffer coupling head according to one or more of claims 7 "to 12, characterized that the actuator is an arbitrary against a continuously effective restoring force 'rotatable and thereby the Has locking lever (36) positively in its raised position moving cam (57) and that on the plunger (47) one in which by a countercup Lung head in the depressed position in the cam area, in the actuation position of the cam at this medium or "directly engaging and holding the cam against the restoring force Notch (63) is hinged. . Central buffer coupling head according to claim 13, characterized in that am the front leg (39) of the blocking lever (36) has a laterally projecting nose (60) which rests against the continuously rising cam outer surface (59), and that the cam (57) an approximately perpendicular to the cam outer surface on the end face (62) of the detent (63) has locking surface (61) resting in its engaged position. - 34 - 70 9826/0017 15 · Central buffer coupling head according to claim 14, characterized in that the Notch (63) is spring-loaded in the engagement direction and its end face (62) and / or the locking surface (61) of the cam (57) one, based on its direction of movement when the cam is rotated back out of the operated in the inoperative position, exceeding the friction angle between these two surfaces Have a tendency. 16. Central buffer coupling head according to claim 13 »characterized in that the Actuating device has a second cam (66), which when actuated with a nose (67) cooperates on the pulling claw (14) in the pivoting direction thereof. 17. Central buffer coupling head according to one or more of the preceding claims, characterized in that the axis of rotation (22) the pulling claw (14), based on the line of action of a counter-coupling head of the same type on the pulling claw exertable tensile force, is arranged offset in the direction of the coupling longitudinal axis. 709826/0017 18. Central buffer coupling head according to claim 7 »characterized in that the axis of rotation (22 ¹ ) of the pulling claw (14), based on the line of action of a pulling force that can be exerted by a similar mating coupling head on the pulling claw, is arranged offset to the outside of the coupling and that the front wall (35 ) of the approach (34) of the pulling claw, the opposite surface (45) of the abutment (46), the interacting surfaces (42, 44) of the front leg (39) of the blocking lever (36} and the inner hook surface (25) of the Zugklaue are arranged parallel to each other. 19 · Central buffer coupling head according to claim 18, characterized in that the mutually parallel surfaces (35 »42, 44, 45) of the pulling claw (14) _{v of} the blocking lever (36) and the abutment (46) have at least approximately a common central vertical running in the direction of the pulling force exhibit. 20. Central buffer coupling head according to claim 4, characterized in that on Sides of the pushing claw (3) below this one known per se, projecting obliquely forward and to the side Guide horn (4) and on the side of the pulling claw (14) below this or the one reaching under it - 36 709826/0017 Extension (15) one to the end face and / or after front sloping guide surfaces of the guide shorneij Skirt (32) known per se and having complementary surfaces is arranged. 21. Central buffer coupling head according to claim 4, characterized in that the Front wall (12) on the side of the pulling claw (14-) adjoining the curvature a small, has step-like section (13) with a flat surface which is approximately parallel to the front surface (6) of the Pushing claw (3) runs and on which the extension (15) is attached to the side. 709826/0017