EP3395639A1 - King pin console arrangement - Google Patents
King pin console arrangement Download PDFInfo
- Publication number
- EP3395639A1 EP3395639A1 EP17168041.6A EP17168041A EP3395639A1 EP 3395639 A1 EP3395639 A1 EP 3395639A1 EP 17168041 A EP17168041 A EP 17168041A EP 3395639 A1 EP3395639 A1 EP 3395639A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- king pin
- locking
- slide
- top portion
- semitrailer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 230000008878 coupling Effects 0.000 claims abstract description 35
- 238000010168 coupling process Methods 0.000 claims abstract description 35
- 238000005859 coupling reaction Methods 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims description 3
- 230000036461 convulsion Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D3/00—Wagons or vans
- B61D3/16—Wagons or vans adapted for carrying special loads
- B61D3/18—Wagons or vans adapted for carrying special loads for vehicles
- B61D3/182—Wagons or vans adapted for carrying special loads for vehicles specially adapted for heavy vehicles, e.g. public work vehicles, trucks, trailers
- B61D3/184—Wagons or vans adapted for carrying special loads for vehicles specially adapted for heavy vehicles, e.g. public work vehicles, trucks, trailers the heavy vehicles being of the trailer or semi-trailer type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D45/00—Means or devices for securing or supporting the cargo, including protection against shocks
- B61D45/001—Devices for fixing to walls or floors
- B61D45/004—Fixing semi-trailers
Definitions
- the present invention concerns a king pin coupling and a king pin locking device.
- the king pin coupling is used for locking a king pin of a semitrailer in position on a railway wagon.
- the semitrailer In such railway wagons configured to receive and carry semitrailers, it is important to keep the semitrailer safely on the railway wagon by securing the semitrailer in relation to the railway wagon.
- the semitrailer At its front end, the semitrailer has a downwardly projecting king pin which is received and locked in a locking device mounted to the railway wagon.
- Examples of devices for locking a semi-trailer to a railway wagon are disclosed for instance in DE102009015775A1 .
- these known king pin locking devices suffer from certain disadvantages.
- the known king pin coupling is limited in use since the king pin of the semitrailer has to be quite precisely positioned longitudinally in relation to the railway wagon. This is a drawback in particular since semitrailers oftentimes are loaded on the railway wagon in a quite rough manner by the towing truck.
- Another drawback is that the known king ping coupling is of complicated structure involving a plurality of components, which adds on costs.
- An object of the present invention is to provide a novel king pin coupling and a novel king pin locking device which is improved over prior art.
- a king pin coupling for locking a king pin of a semitrailer to a railway wagon.
- the king pin coupling is mounted to the railway wagon and it comprises a slide having an aperture configured to receive the king pin.
- the slide is movable - preferably in a continuously movement - back and forth.
- the king pin coupling further comprises a locking assembly arranged on the slide.
- the locking assembly defines an open state and a closed state, wherein pivotable locking jaws of the locking assembly in the closed state are configured to grip and lock the king pin in the aperture of the slide.
- a king pin locking device for locking a semitrailer to a railway wagon.
- the king pin locking device comprises a base portion and a top portion connected to the base portion.
- the top portion is vertically movable relative the base portion.
- the top portion comprises an open space in which a king pin of a semitrailer can be received.
- the king pin locking device further comprises a king pin coupling having a slide arranged in the open space of the top portion.
- the slide has an aperture configured to receive the king pin, and it is movable in a longitudinal direction of the open space - preferably in a continuous movement - back and forth.
- a locking assembly is arranged on the slide, and it defines an open state and a closed state, wherein locking jaws of the locking assembly in the closed state are configured to grip and lock the king pin in the aperture of the slide.
- a method for locking a king pin of a semitrailer to a railway wagon comprising the following steps:
- FIGs 1-2 there is illustrated an example of a railway wagon 1 adapted to receive a semitrailer 2.
- the railway wagon 1 can for instance be of the type described in WO2010/120236A1 mentioned above.
- the wagon 1 has a first bogie section 1a, a second bogie section 1b and a main load-carrying section 1c.
- the main section 1c of the wagon 1 may be turned outwards to make it possible to drive the semitrailer 2 onto this load-carrying section 1c.
- this section 1c is turned back with the semitrailer 2 carried thereon to the position shown in Fig. 2 .
- a king pin locking coupling is used for locking a king pin 3 of the semitrailer 2 to the railway wagon 1.
- Fig. 3 shows a detail of one end portion 2a of the semitrailer 2 illustrating the king pin 3 extending downwardly from the bottom surface of the semitrailer 2.
- the king pin locking device 4 has a base portion 5 and a top portion 6.
- the base portion 5 comprises two scissor lifts 7 driven collectively by a drive unit 7' (see Fig. 4 ).
- the top portion 6 can be raised and lowered in relation to the base portion 5 by means of the scissor lifts 7.
- the top portion 6 comprises a slide 8 that can be moved continuously back and forth in a longitudinal direction of the railway wagon 1.
- the slide 8 is moved by means of two parallel threaded bars 9a, 9b each cooperating with a nut 10a, 10b (see Fig 6 ).
- the two nuts 10a, 10b mounted to opposite sides of the slide 8 are each received on one of the threaded bars 9a, 9b.
- To move the slide 8 the two threaded bars 9a, 9b are rotated in unison, whereby the nuts 10a, 10b will move along the threaded bars 9a, 9b.
- the top portion 6 comprises a frame inside which the slide 8 is placed.
- the slide 8 is arranged moveable inside the frame which is formed by two side pieces 11a, 11b, a first piece 12 and a second piece 13.
- One of the scissor lifts 7 are connected to one of the side pieces 11a of the frame of the top portion 6, while the other scissor lift 7 is connected to the other side piece 11b.
- Each of the threaded bars 9a, 9b are connected to the first piece 12 and the second piece 13 in such a way that they can rotate.
- the threaded bars 9a, 9b are rotated by means of a hydraulic motor 30 (see Fig. 4 ), connected to one of the threaded bars 9a, and a chain (not shown) transferring the rotational movement to the other threaded bar 9b.
- the slide 8 comprises two parallel base plates 14a, 14b at opposite sides.
- the nuts 10a, 10b are connected to the bottom of the base plates 14a, 14b.
- the slide 8 comprises a first plate 15 and two inclined second plates 16a, 16b.
- Each of the inclined second plates 16a, 16b is inclined inwards and forward from a rear end of one of the parallel base plates 14a, 14b of the slide 8.
- Both the first plate 15 and the inclined plates 16a, 16b are directed downwards from the base plates 14a, 14b.
- the inclined plates 16a, 16b are to guide the king pin 3 of the semitrailer 2. This will be further explained below.
- Support plates 35a, 35b are placed outside of the base plates 14a, 14b of the slide 8, and they are supported on the side pieces 11a, 11b of the top portion 6.
- the slide 8 further comprises a pair of locking jaws 17a, 17b and a U-shaped jaw locking clamp 18.
- a funnel-shaped or triangular aperture 36 is defined by the inclined plates 16a, 16b and the locking jaws 17a, 17b.
- the aperture 36 is configured to receive the king pin 3 of the semitrailer 2.
- the locking jaws 17a, 17b are mounted to pivots 25a, 25b and are preferably freely pivotable between a closed state and an open state.
- the jaw locking clamp 18 locks the locking jaws 17a, 17b in the closed state, and it is moveable back and forth inside the slide 8, between a locking state and an unlocking state.
- the jaw locking clamp 18 locks the locking jaws 17a, 17b in their closed state.
- the unlocking state of the jaw locking clamp 18 the locking jaws 17a, 17b are free to move.
- the jaw locking clamp 18 is urged rearward by means of springs 19a, 19b, each of which has one end connected to the first plate 15 of the slide 8 and the other end received in an opening of the jaw locking clamp 18.
- a push button 20 extends through an opening of the first plate 15 of the slide 8 is connected to one end of a lever 21.
- the other end of the lever 21 is connected to the jaw locking clamp 18 in such a way that when the push button 20 is pressed the lever 21 will be turned around a central pivot, whereby the jaw locking clamp 18 is moved forward, releasing the locking jaws 17a, 17b.
- the sides of the jaw locking clamp 18 abut the two base plates 14a, 14b of the slide 8.
- the jaw locking clamp 18 has a U-like profile, wherein a straight front part forms the bottom of the "U".
- Each of the sides of the jaw locking clamp 18 has a part 22a, 22b projecting inwards, and a leg portion 23a, 23b of each side behind the part 22a, 22b is somewhat thinner than the rest of the side of the jaw locking clamp 18.
- the locking jaws 17a, 17b are designed in such a way that they define a vertical opening 24 in the closed state (see Fig. 7 ).
- Each locking jaw 17a, 17b is mounted on top of a housing 34 by means of the pivots 25a, 25b. These pivots 25a, 25b are placed at the front of the locking jaws 17a, 17b outside the opening 24 formed in the closed state of the locking jaws 17a, 17b.
- Each jaw has a part 26a, 26b projecting outwards at one end and a curved part 27a, 27b at the opposite end.
- the parts 22a, 22b of the jaw locking clamp 18 projecting inwards can move between the parts 26a, 26b projecting outwards and the curved part 27a, 27b of the respective locking jaw 17a, 17b.
- each base plate 14a, 14b has a recess 14'a, 14'b matching the two curved parts 27a, 27b of the locking jaws 17a, 17b.
- the curved parts 27a, 27b are moved into the respective recess 14'a and 14'b for engagement therein.
- the leg portions 23a, 23b of the jaw locking clamp 18 are abutting front sides of the curved parts 27a, 27b of the locking jaws 17a, 17b, preventing relative movement between the locking jaws 17a, 17b and the jaw locking clamp 18.
- the sizes of the curved parts 27a, 27b of the locking jaws 17a, 17b are such that when the locking jaws 17a, 17b are in the closed position the leg portions 23a, 23b of the jaw locking clamp 18 are free to pass the locking jaws 17a, 17b.
- the king pin coupling further has an indicator or inductive sensor 18' to sense when the jaw locking clamp 18 is in the position locking the locking jaws 17a, 17b in their closed state.
- the indicator 18' then sends a stop signal to the longitudinal drive assembly 9, 30, whereby the movement of the slide 8 is stopped.
- a locking boss 28 is arranged on the slide 8 and projects into the opening 24 formed when the locking jaws 17a, 17b are in the closed state.
- the locking boss 28 is arranged to extend through the housing 34 of the slide 8, and it will project into a groove of the king pin 3 of the semitrailer 2 when the king pin 3 is received inside the opening 24, whereby vertical movement of the king pin is hindered.
- the locking boss 28 may be retracted against the action of a spring to release the king pin 3, if vertical movement upwards of the king pin 3 is desired when the locking jaws 17a, 17b are in the closed state.
- An indicating device 29 is placed partly projecting above one of the side pieces 11a, 11b of the top portion 6 of the king pin locking device 4.
- the indicating device 29 is received at a pivot at one end, and a part of the indicating device 29 opposite the end received at the pivot extends up through a slot in the side piece 11a of the top portion 6.
- the part of the indicating device 29 received in the slot of the side piece 11a is urged upwards by means of a spring.
- each scissor lift 7 is controlled by a bar 31, the end of which is moved inwards or outwards by rotation in a nut 32 at one end of the scissor lift 7.
- the bars 31 of the scissor lifts are interconnected to give the same rotation and so that the scissor lifts 7 are moved in unison.
- the design of the scissor lifts 7 may vary, and the embodiment shown herein is just an example.
- An open space 37 is formed in the top portion 6 between the parallel side pieces 11a, 11b, the second piece 13 and the slide 8.
- the king pin 3 of the semitrailer 2 is to be received.
- the slide 8 is placed in its foremost position adjacent the first piece 12 of the top portion 6, giving the maximal size of the open space 37.
- the open space 37 with the slide 8 placed adjacent the first piece 12 of the top portion 6 has a length of about 300 mm and a width of about 100 mm.
- Plastic sleeves or blocks 33a, 33b and 33a', 33b' are placed at each end of the threaded bars 9a, 9b used to move the slide 8 back and forth.
- the purpose of these blocks 33 is to take up jerks. In case of big jerks, such as at heavy breaking or collision, the plastic blocks 33 will be deformed protecting the king pin coupling. Hence, these plastic blocks 33 serve as shock absorbing crush elements.
- a rocker is placed at one of the plastic blocks 33, which rocker (not shown) reacts on longitudinal movement. If the rocker sense a sudden change of speed it will activate a valve, which valve in turn activates the brakes of the railway wagon 1.
- the operation of the king ping coupling in accordance with the example given is described in the following.
- the semitrailer 2 is placed on the railway wagon 1 with the king pin 3 of the semitrailer 2 placed above the open space 37 of the top portion 6 of the king pin locking device 4.
- the slide 8 is placed adjacent the first piece 12 of the top portion 6, giving the maximal open space 37 for receiving the king pin 3.
- the scissor lifts 7 are activated, whereby the top portion 6 will be lifted, until the indicating device 29 is activated when the top portion 6 hits the bottom of the semitrailer 2.
- the semitrailer 2 rests on its wheels and on the top portion 6 of the king pin locking device 4.
- the slide 8 is moved backwards, whereby the inclined second plates 16a, 16b will assist in guiding the king pin 3 into the triangular aperture 36, defined by the inclined second plates 16a, 16b and the locking jaws 17a, 17b.
- the locking jaws 17a, 17b are held in their open state by means of the jaw locking clamp 18, as shown in Fig. 8 .
- the locking jaws 17a, 17b hit the king pin 3, the locking jaws 17a, 17b will be turned inwards around the pivots 25a, 25b by the continued movement of the slide 8 backwards, as indicated in Fig. 9 .
- the jaw locking clamp 18 is pushed backwards by means of the springs 19a, 19b, locking the locking jaws 17a, 17b in their closed state and with the king pin 3 inside the opening 24 formed by the locking jaws 17a, 17b, as indicated in Fig. 10 .
- the inductive sensor 18' registers that the jaw locking clamp 18 is in the position locking the locking jaws 17a, 17b, the hydraulic motor 30 is stopped, stopping the movement of the slide 8.
- the slide 8 When the semitrailer 2 is to be unloaded from the railway wagon 1, the slide 8 is moved forward, bringing the semitrailer 2 with it in this movement forward. As the slide 8 approaches the first piece 12 of the top portion 6, the push button 20 will move the jaw locking clamp 18 forward in relation to the locking jaws 17a, 17b by means of the lever 21 connected at one end to the push button 20. As the jaw locking clamp 18 is moved forward, the locking jaws 17a, 17b will no longer be locked and when the inwards projecting parts 22a, 22b of the jaw locking clamp 18 hits the outward projecting parts 26a, 26b of the locking jaws 17a, 17b, the locking jaws will be turned around the pivots 25a, 25b into the open state. The scissor lifts 7 are then activated to lower the top portion 6 out of contact with the semitrailer 2, whereby the semitrailer 2 can be unloaded from the railway wagon 1.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Loading Or Unloading Of Vehicles (AREA)
Abstract
Description
- The present invention concerns a king pin coupling and a king pin locking device. The king pin coupling is used for locking a king pin of a semitrailer in position on a railway wagon.
- It is well known to provide railway wagons for receiving and carrying semitrailers. By placing a semitrailer, normally intended for road transport, on a railway wagon for transportation on the railway, a more efficient and environmentally friendly transportation is achieved compared to road transport. The railway is normally used for long distances. A railway wagon of this type is disclosed in
WO2010/120236A1 . - In such railway wagons configured to receive and carry semitrailers, it is important to keep the semitrailer safely on the railway wagon by securing the semitrailer in relation to the railway wagon. At its front end, the semitrailer has a downwardly projecting king pin which is received and locked in a locking device mounted to the railway wagon.
- Examples of devices for locking a semi-trailer to a railway wagon are disclosed for instance in
DE102009015775A1 . However, these known king pin locking devices suffer from certain disadvantages. The known king pin coupling is limited in use since the king pin of the semitrailer has to be quite precisely positioned longitudinally in relation to the railway wagon. This is a drawback in particular since semitrailers oftentimes are loaded on the railway wagon in a quite rough manner by the towing truck. Another drawback is that the known king ping coupling is of complicated structure involving a plurality of components, which adds on costs. - An object of the present invention is to provide a novel king pin coupling and a novel king pin locking device which is improved over prior art. This object and other objects, which will appear from the following detailed description, have now been achieved by the technique set forth in the appended independent claims; preferred embodiments being defined in the dependent claims.
- By these inventive arrangements, a more or less automatic way of locking and unlocking a semitrailer to a railway wagon is achieved. Thanks to the automatic locking and unlocking of the king ping of the semitrailer, the time for loading and unloading the semitrailer from the railway wagon can be reduced. At the same time, the locking of the semitrailer is safe.
- In a first aspect, a king pin coupling is provided for locking a king pin of a semitrailer to a railway wagon. The king pin coupling is mounted to the railway wagon and it comprises a slide having an aperture configured to receive the king pin. The slide is movable - preferably in a continuously movement - back and forth. The king pin coupling further comprises a locking assembly arranged on the slide. The locking assembly defines an open state and a closed state, wherein pivotable locking jaws of the locking assembly in the closed state are configured to grip and lock the king pin in the aperture of the slide.
- In a second aspect, a king pin locking device is provided for locking a semitrailer to a railway wagon. The king pin locking device comprises a base portion and a top portion connected to the base portion. The top portion is vertically movable relative the base portion. Furthermore, the top portion comprises an open space in which a king pin of a semitrailer can be received. The king pin locking device further comprises a king pin coupling having a slide arranged in the open space of the top portion. The slide has an aperture configured to receive the king pin, and it is movable in a longitudinal direction of the open space - preferably in a continuous movement - back and forth. A locking assembly is arranged on the slide, and it defines an open state and a closed state, wherein locking jaws of the locking assembly in the closed state are configured to grip and lock the king pin in the aperture of the slide.
- In a third aspect, there is provided a method for locking a king pin of a semitrailer to a railway wagon, comprising the following steps:
- positioning the king pin of said semitrailer above a king pin locking device,
- raising a top portion of said king pin locking device vertically until an indicating element of said top portion sends a stop signal to a vertical drive assembly, and
- moving a king pin coupling towards said king pin until an indicator of said king pin coupling sends a stop signal to a longitudinal drive assembly.
- Several advantages can be achieved by the inventive concept, some of which are set forth below:
- Automatic height and longitudinal adjustments when securing a king pin to e.g. a transporting railway wagon.
- Large tolerance as regards incorrect positioning of the semitrailer laterally and longitudinally, respectively.
- Secure coupling to the railway wagon.
- Possibility to release the king pin from the coupling in order to lift the semitrailer vertically.
- Indication that all locks are secured.
- Improved security in terms of shock absorbers and the like which can be connected to the brake system.
- Further objects and advantages of the present invention as well as further aspects and variants will be anticipated by a person skilled in the art when reading the detailed description below of at present preferred embodiments.
- Embodiments of the present invention will now be described further by way of example and with reference to the enclosed drawings, in which:
-
Fig. 1 is a perspective view of a railway wagon in position to receive a semitrailer; -
Fig. 2 is a perspective view of the railway wagon ofFig. 1 with a semitrailer loaded on the same; -
Fig. 3 is a detail view illustrating one example of a king pin of a semitrailer; -
Fig. 4 is a plan view of a king pin locking device according to an embodiment; -
Fig. 5 is a cross section view taken along the line V-V inFig. 4 ; -
Fig. 6 is a perspective view of a part of the king pin locking device ofFig. 4 ; -
Fig. 7 is a plan view of a slide of the king pin locking device ofFig. 4 ; and -
Figs 8 - 10 are plan views of the slide ofFig. 7 in different operating states. - As used in this description the expressions forward, rear, side etc. and similar expressions are in relation to a railway wagon and its normal orientation in a train.
- With reference to
Figs 1-2 , there is illustrated an example of arailway wagon 1 adapted to receive asemitrailer 2. Therailway wagon 1 can for instance be of the type described inWO2010/120236A1 mentioned above. Thewagon 1 has a first bogie section 1a, asecond bogie section 1b and a main load-carryingsection 1c. Themain section 1c of thewagon 1 may be turned outwards to make it possible to drive thesemitrailer 2 onto this load-carryingsection 1c. When thesemitrailer 2 has been loaded onto themain section 1c of thewagon 1, thissection 1c is turned back with thesemitrailer 2 carried thereon to the position shown inFig. 2 . The exact design of therailway wagon 1 may vary, but according to the described embodiment a king pin locking coupling is used for locking aking pin 3 of thesemitrailer 2 to therailway wagon 1.Fig. 3 shows a detail of oneend portion 2a of thesemitrailer 2 illustrating theking pin 3 extending downwardly from the bottom surface of thesemitrailer 2. - Locking the
king pin 3 of thesemitrailer 2 to therailway wagon 1 is accomplished by means of a kingpin locking device 4 placed at the first section 1a of therailway wagon 1. The kingpin locking device 4 has abase portion 5 and atop portion 6. Thebase portion 5 comprises twoscissor lifts 7 driven collectively by a drive unit 7' (seeFig. 4 ). Thetop portion 6 can be raised and lowered in relation to thebase portion 5 by means of the scissor lifts 7. - The
top portion 6 comprises aslide 8 that can be moved continuously back and forth in a longitudinal direction of therailway wagon 1. Theslide 8 is moved by means of two parallel threadedbars nut Fig 6 ). The twonuts slide 8 are each received on one of the threadedbars slide 8 the two threadedbars bars - Furthermore, the
top portion 6 comprises a frame inside which theslide 8 is placed. Theslide 8 is arranged moveable inside the frame which is formed by twoside pieces first piece 12 and asecond piece 13. One of thescissor lifts 7 are connected to one of theside pieces 11a of the frame of thetop portion 6, while theother scissor lift 7 is connected to theother side piece 11b. Each of the threadedbars first piece 12 and thesecond piece 13 in such a way that they can rotate. The threadedbars Fig. 4 ), connected to one of the threadedbars 9a, and a chain (not shown) transferring the rotational movement to the other threadedbar 9b. - The
slide 8 comprises twoparallel base plates base plates slide 8 comprises afirst plate 15 and two inclinedsecond plates second plates parallel base plates slide 8. Both thefirst plate 15 and theinclined plates base plates inclined plates king pin 3 of thesemitrailer 2. This will be further explained below. -
Support plates base plates slide 8, and they are supported on theside pieces top portion 6. Theslide 8 further comprises a pair of lockingjaws jaw locking clamp 18. A funnel-shaped ortriangular aperture 36 is defined by theinclined plates jaws aperture 36 is configured to receive theking pin 3 of thesemitrailer 2. - The locking
jaws pivots jaw locking clamp 18 locks the lockingjaws slide 8, between a locking state and an unlocking state. In the locking state, thejaw locking clamp 18 locks the lockingjaws jaw locking clamp 18, the lockingjaws jaw locking clamp 18 is urged rearward by means ofsprings first plate 15 of theslide 8 and the other end received in an opening of thejaw locking clamp 18. - A
push button 20 extends through an opening of thefirst plate 15 of theslide 8 is connected to one end of alever 21. The other end of thelever 21 is connected to thejaw locking clamp 18 in such a way that when thepush button 20 is pressed thelever 21 will be turned around a central pivot, whereby thejaw locking clamp 18 is moved forward, releasing the lockingjaws - The sides of the
jaw locking clamp 18 abut the twobase plates slide 8. In view from above thejaw locking clamp 18 has a U-like profile, wherein a straight front part forms the bottom of the "U". Each of the sides of thejaw locking clamp 18 has apart leg portion part jaw locking clamp 18. - The locking
jaws vertical opening 24 in the closed state (seeFig. 7 ). Each lockingjaw housing 34 by means of thepivots pivots jaws opening 24 formed in the closed state of the lockingjaws part curved part parts jaw locking clamp 18 projecting inwards can move between theparts curved part respective locking jaw - When the
jaw locking clamp 18 is moved forward, theparts jaw locking clamp 18 projecting inwards will contact theparts jaws jaws jaws leg portions jaw locking clamp 18 will be placed outside thecurved parts jaws jaws Fig. 7 , eachbase plate curved parts jaws Fig. 8 ), thecurved parts - In the open state of the locking
jaws leg portions jaw locking clamp 18 are abutting front sides of thecurved parts jaws jaws jaw locking clamp 18. The sizes of thecurved parts jaws jaws leg portions jaw locking clamp 18 are free to pass the lockingjaws - The king pin coupling further has an indicator or inductive sensor 18' to sense when the
jaw locking clamp 18 is in the position locking the lockingjaws longitudinal drive assembly 9, 30, whereby the movement of theslide 8 is stopped. - A locking
boss 28 is arranged on theslide 8 and projects into theopening 24 formed when the lockingjaws boss 28 is arranged to extend through thehousing 34 of theslide 8, and it will project into a groove of theking pin 3 of thesemitrailer 2 when theking pin 3 is received inside theopening 24, whereby vertical movement of the king pin is hindered. The lockingboss 28 may be retracted against the action of a spring to release theking pin 3, if vertical movement upwards of theking pin 3 is desired when the lockingjaws - An indicating
device 29 is placed partly projecting above one of theside pieces top portion 6 of the kingpin locking device 4. In the shown embodiment the indicatingdevice 29 is received at a pivot at one end, and a part of the indicatingdevice 29 opposite the end received at the pivot extends up through a slot in theside piece 11a of thetop portion 6. The part of the indicatingdevice 29 received in the slot of theside piece 11a is urged upwards by means of a spring. When the indicatingdevice 29 is pressed downwards against the force of the spring the movements of thescissor lifts 7 are stopped, by means of a sensor. - As shown in
Fig. 5 , the height of eachscissor lift 7 is controlled by abar 31, the end of which is moved inwards or outwards by rotation in anut 32 at one end of thescissor lift 7. Thebars 31 of the scissor lifts are interconnected to give the same rotation and so that thescissor lifts 7 are moved in unison. The design of thescissor lifts 7 may vary, and the embodiment shown herein is just an example. - An
open space 37 is formed in thetop portion 6 between theparallel side pieces second piece 13 and theslide 8. In theopen space 37 theking pin 3 of thesemitrailer 2 is to be received. When to receive theking pin 3 in theopen space 37, theslide 8 is placed in its foremost position adjacent thefirst piece 12 of thetop portion 6, giving the maximal size of theopen space 37. In an embodiment theopen space 37 with theslide 8 placed adjacent thefirst piece 12 of thetop portion 6 has a length of about 300 mm and a width of about 100 mm. - Plastic sleeves or
blocks bars slide 8 back and forth. The purpose of these blocks 33 is to take up jerks. In case of big jerks, such as at heavy breaking or collision, the plastic blocks 33 will be deformed protecting the king pin coupling. Hence, these plastic blocks 33 serve as shock absorbing crush elements. A rocker is placed at one of the plastic blocks 33, which rocker (not shown) reacts on longitudinal movement. If the rocker sense a sudden change of speed it will activate a valve, which valve in turn activates the brakes of therailway wagon 1. - The operation of the king ping coupling in accordance with the example given is described in the following. The
semitrailer 2 is placed on therailway wagon 1 with theking pin 3 of thesemitrailer 2 placed above theopen space 37 of thetop portion 6 of the kingpin locking device 4. Theslide 8 is placed adjacent thefirst piece 12 of thetop portion 6, giving the maximalopen space 37 for receiving theking pin 3. Then thescissor lifts 7 are activated, whereby thetop portion 6 will be lifted, until the indicatingdevice 29 is activated when thetop portion 6 hits the bottom of thesemitrailer 2. In this position, thesemitrailer 2 rests on its wheels and on thetop portion 6 of the kingpin locking device 4. In the next step, theslide 8 is moved backwards, whereby the inclinedsecond plates king pin 3 into thetriangular aperture 36, defined by the inclinedsecond plates jaws - The locking
jaws jaw locking clamp 18, as shown inFig. 8 . When the lockingjaws king pin 3, the lockingjaws pivots slide 8 backwards, as indicated inFig. 9 . When the lockingjaws vertical opening 24, thejaw locking clamp 18 is pushed backwards by means of thesprings jaws king pin 3 inside theopening 24 formed by the lockingjaws Fig. 10 . When the inductive sensor 18' registers that thejaw locking clamp 18 is in the position locking the lockingjaws hydraulic motor 30 is stopped, stopping the movement of theslide 8. - When the
semitrailer 2 is to be unloaded from therailway wagon 1, theslide 8 is moved forward, bringing thesemitrailer 2 with it in this movement forward. As theslide 8 approaches thefirst piece 12 of thetop portion 6, thepush button 20 will move thejaw locking clamp 18 forward in relation to the lockingjaws lever 21 connected at one end to thepush button 20. As thejaw locking clamp 18 is moved forward, the lockingjaws parts jaw locking clamp 18 hits the outward projectingparts jaws pivots top portion 6 out of contact with thesemitrailer 2, whereby thesemitrailer 2 can be unloaded from therailway wagon 1. - Finally, it should be mentioned that the invention is by no means not limited to the embodiments described herein and several modifications are feasible within the scope of the appended claims. For instance, alternative means can be used for achieving the vertical and longitudinal movements of components included in the king pin console arrangement.
Claims (15)
- A king pin coupling for locking a king pin (3) of a semitrailer (2) to a railway wagon (1) to which said king pin coupling is mounted, said coupling comprising:a slide (8) having an aperture (36) configured to receive the king pin (3), said slide (8) being movable back and forth; anda locking assembly (17, 18, 25) arranged on said slide (8), said locking assembly defining an open state and a closed state, wherein pivotable locking jaws (17a, 17b) of said locking assembly in the closed state are configured to grip and lock said king pin (3) in said aperture (36) of said slide (8).
- The king pin coupling according to claim 1, wherein said locking jaws (17a, 17b) are each pivotally arranged on one side of said aperture (36), respectively.
- The king pin coupling according to claim 1 or 2, wherein said aperture (36) of said slide (8) is funnel shaped and configured to guide the king pin (3) towards said locking assembly (17, 18, 25).
- The king pin coupling according to any one of the preceding claims, wherein a drive assembly (9, 30) is connected to said slide (8) and configured to move said slide (8) back and forth, wherein said drive assembly preferably comprises a hydraulic motor (30) and two threaded bars (9a, 9b), wherein said hydraulic motor (30) is configured to rotate said threaded bars (9a, 9b), and wherein said threaded bars (9a, 9b) are arranged one on each side of said king pin coupling and configured to move said slide (8) back and forth.
- The king pin coupling according to any one of the preceding claims, further comprising a jaw locking clamp (18) movable between an unlocking state and a locking state and configured to lock said locking jaws (17a, 17b) in its locking state, wherein said jaw locking clamp (18) preferably at least partly surrounds said locking jaws (17a, 17b) in its locking state.
- The king pin coupling according to claim 5, wherein said jaw locking clamp (18) is further configured to pivot said locking jaws (17) from their closed state to their open state, when said king pin (3) is removed.
- The king pin coupling according to claims 6, further comprising an indicator (18') which is configured to send a stop signal to said drive assembly when said jaw locking clamp (18) is in its locked state.
- A king pin locking device for locking a semitrailer (2) to a railway wagon (1) comprising:a base portion (5), anda top portion (6) connected to said base portion (5) and vertically movable relative said base portion (5), wherein said top portion (6) comprises an open space (37) configured to receive said king pin (3),the king pin locking device further comprising:a king pin coupling having:a slide (8) arranged in said open space (37) of the top portion (6) and having an aperture (36) configured to receive said king pin (2), said slide (8) being movable, in a longitudinal direction of said open space (37), back and forth, anda locking assembly (17, 18, 25) arranged on said slide (8), said locking assembly defining an open state and a closed state, wherein locking jaws (17a, 17b) of said locking assembly in the closed state are configured to grip and lock said king pin (3) in said aperture (36) of said slide (8).
- The king pin locking device according to claim 8, further comprising a vertical drive assembly (7) interconnected between said base portion (5) and said top portion (6) and configured to vertically move said top portion (6), wherein said vertical drive assembly preferably comprises a drive unit (7') and scissor lifts (7), and wherein said top portion (6) is mounted to said scissor lifts (7) and said drive unit (7') is configured to raise and lower said scissor lifts (7) so that said top portion (6) is vertically adjusted.
- The king pin locking device according to claim 8 or 9, wherein said top portion (6) comprises an indicating device (29), configured to send a stop signal to said vertical drive assembly (7) when said top portion (6) is at a predetermined position relative a bottom surface of the semitrailer (2), wherein said indicating device preferably comprises an element (29) protruding from a top surface of said top portion (6) and configured to abut a bottom surface of said semitrailer (2), and an indicator (29') configured to send a stop signal to said vertical drive assembly when said protruding element (29) abuts the bottom surface of said semitrailer (2).
- The king pin locking device according to any one of the claims 8-10, further comprising a longitudinal drive assembly (9, 30) connected to said king pin coupling and configured to move said king pin coupling back and forth in a longitudinal direction of said open space (37).
- The king pin locking device according to claim 11, wherein said king pin coupling further comprises an indicator (18') configured to send a stop signal to said longitudinal drive assembly (9, 30) when said king pin coupling is locked with said king pin (3), wherein said indicator (18') preferably is connected to a jaw locking clamp (18) movable between an unlocking state and a locking state and configured to secure said locking jaws (17) in its locking state, and wherein said indicator (18') is configured to send a stop signal to said longitudinal drive assembly (9, 30) when the jaw locking clamp (18) is in its locking state.
- The king pin locking device according to claim 11 or 12, wherein said longitudinal drive assembly (9, 30) comprises two threaded bars (9a, 9b), and wherein each threaded bar comprises deformable elements (33a, 33b) at opposite ends.
- A railway wagon comprising a king pin locking device according to any of the claims 8-13.
- A method for locking a king pin (3) of a semitrailer (2) to a railway wagon (1) by means of a king pin locking device (4) according to any of the claims 8-13 mounted to the railway wagon (1), comprising the steps of:- positioning the king pin (3) of said semitrailer (2) above said king pin locking device (4),- raising a top portion (6) of said king pin locking device (4) vertically until an indicating element (29) of said top portion (6) sends a stop signal to a vertical drive assembly (7), and- moving a king pin coupling towards said king pin (3) until an indicator (18') of said king pin coupling sends a stop signal to a longitudinal drive assembly (9, 30).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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EP17168041.6A EP3395639B1 (en) | 2017-04-25 | 2017-04-25 | King pin console arrangement |
Applications Claiming Priority (1)
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EP17168041.6A EP3395639B1 (en) | 2017-04-25 | 2017-04-25 | King pin console arrangement |
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EP3395639A1 true EP3395639A1 (en) | 2018-10-31 |
EP3395639B1 EP3395639B1 (en) | 2021-01-27 |
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EP17168041.6A Active EP3395639B1 (en) | 2017-04-25 | 2017-04-25 | King pin console arrangement |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111252100A (en) * | 2020-02-10 | 2020-06-09 | 中车山东机车车辆有限公司 | Piggyback transport activity saddle and piggyback transport vehicle |
RU2741147C1 (en) * | 2020-08-06 | 2021-01-22 | Андрей Валентинович Жакалов | Saddling device of piggy-back platform |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU500421B1 (en) * | 2021-07-12 | 2023-01-12 | Cfl Multimodal S A | Fifth Wheel Kit |
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CN111252100A (en) * | 2020-02-10 | 2020-06-09 | 中车山东机车车辆有限公司 | Piggyback transport activity saddle and piggyback transport vehicle |
RU2741147C1 (en) * | 2020-08-06 | 2021-01-22 | Андрей Валентинович Жакалов | Saddling device of piggy-back platform |
Also Published As
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