EP4299406A1 - Endstück für eine kuppelstange, zugvorrichtung für eine kuppelstange, kupplung für ein mehrwagenfahrzeug und verfahren zum bauen einer zugvorrichtung oder einer kupplung - Google Patents

Endstück für eine kuppelstange, zugvorrichtung für eine kuppelstange, kupplung für ein mehrwagenfahrzeug und verfahren zum bauen einer zugvorrichtung oder einer kupplung Download PDF

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Publication number
EP4299406A1
EP4299406A1 EP22182186.1A EP22182186A EP4299406A1 EP 4299406 A1 EP4299406 A1 EP 4299406A1 EP 22182186 A EP22182186 A EP 22182186A EP 4299406 A1 EP4299406 A1 EP 4299406A1
Authority
EP
European Patent Office
Prior art keywords
rod
housing
endpiece
coupler
draft gear
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
Application number
EP22182186.1A
Other languages
English (en)
French (fr)
Other versions
EP4299406B1 (de
Inventor
Michal CHALUPKA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dellner Couplers AB
Original Assignee
Dellner Couplers AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dellner Couplers AB filed Critical Dellner Couplers AB
Priority to EP22182186.1A priority Critical patent/EP4299406B1/de
Priority to PCT/EP2023/067849 priority patent/WO2024003261A1/en
Publication of EP4299406A1 publication Critical patent/EP4299406A1/de
Application granted granted Critical
Publication of EP4299406B1 publication Critical patent/EP4299406B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G9/00—Draw-gear
    • B61G9/04—Draw-gear combined with buffing appliances
    • B61G9/06—Draw-gear combined with buffing appliances with rubber springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G7/00—Details or accessories
    • B61G7/10—Mounting of the couplings on the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G9/00—Draw-gear
    • B61G9/20—Details; Accessories
    • B61G9/24—Linkages between draw-bar and framework

Definitions

  • the invention pertains to an endpiece for a coupling rod.
  • the invention also pertains to a draft gear for a coupling rod.
  • the invention also pertains to a coupler for a multi-car vehicle.
  • the invention also pertains to a method for building a draft gear or a coupler.
  • an endpiece for a coupling rod is known.
  • the endpiece is suitable to be used as part of a draft gear for a coupling rod.
  • the draft gear being shown for example in Fig. 5 and Fig. 6 of EP 1 719 684 B1 .
  • the endpiece comprises a housing that forms part of the "Anlenkung” and is not further designated in the Figs. of EP 1 719 684 B1 .
  • the endpiece of EP 1 719 684 B1 has a rod referred to as "Kupplungsschaft 1" or "hinteres Ende des Kupplungsschafts 3", the rod having a housing part that is arranged inside the housing of the endpiece.
  • the endpiece by way of the rubber donuts called “Federringe 13", has an elastic connection that connects the housing part of the rod to the housing of the endpiece.
  • the elasticity of the elastic connection allows the rod to swivel about its longitudinal axis relative to the housing.
  • the housing part of the rod has circumferential grooves between circumferential ridges (“Ringwülste 14") and the housing of the endpiece has an inward-facing surface with circumferential grooves arranged between the circumferential ridges arranged on the inward-facing surface.
  • the doughnut-shaped elastic elements "Federringe 13" each have an inner part arranged in one of the circumferential grooves of the housing part and an outer part arranged in one of the circumferential grooves of the inward-facing surface of the endpiece.
  • the draft gear of EP 1 719 684 B1 has a bearing bracket referred to as “Lagerbock 4", the above-described endpiece and a joint ("Drehzapfen 16") arranged between the bearing bracket and the housing of the endpiece, whereby the joint allows the housing to swivel relative to the bearing bracket.
  • a coupler for a multi-car vehicle comprising a main buffer 2 mounted between a coupler head 4 and a car body attachment 5.
  • support dampers 3 are arranged underneath, with a rear end mounted on the car body attachment 5 and a front end mounted on the main buffer 2 by means of a holder 6.
  • a coupler for a multi-car vehicle having a coupling rod which has a first rod part and a second rod part, whereby the coupler head is attached to the second rod part, whereby the coupling rod has a rod joint being arranged between the first rod part and the second rod part, the rod joint allowing the second rod part to be folded backwards towards the first rod part.
  • Similar designs are known from EP 3 992 054 A1 and CN 112896224 A . Designs of couplers as they are shown in WO 2021/249954 A1 have the problem that in a state where the coupler head is folded backwards (e.g. Fig.
  • the coupler head is arranged off-centre of the longitudinal axis of the first rod part and hence of the draft gear. This leads to the effect that the weight of the coupler head that now is off-centre applies a torsional force onto the first rod part and the draft gear.
  • a draft gear for a coupling rod is known.
  • the draft gear has a base plate (Grundplatte 20) that surrounds the coupler rod (Kupplungsstange 10).
  • the base plate has a one-piece element that has a hole through which the coupler rod passes.
  • a bearing element (Lagerelement 30) is arranged between the inward-facing surface of the hole of the base plate and the outer circumferential surface of the coupler rod.
  • the bearing element comprises an elastic element (Rueckstellkomponente 32).
  • An inward-facing surface of the elastic element is arranged on the outer circumferential surface of the coupler rod so as not to rotate relative to the outer circumferential surface of the coupler rod via the design of an end wall of the bearing element (Stuetzkomponente 31) that sits on the outer circumferential surface of the coupler rod and on which the inward-facing surface of the elastic element sits.
  • An outward-facing surface of the elastic element is arranged to contact the inward-facing surface of the hole of the base plate so as not to rotate relative to the inward-facing surface. A rotational movement of the outward-facing surface of the coupler rod relative to the inward-facing surface of the hole will lead to the elastic element being deformed, whereby the deformation creates a restoring force directed to rotate the coupler rod back.
  • the problem to be solved by the invention is to provide means that reduce asymmetric loads on a draft gear.
  • the invention is based on the basic idea of providing the endpiece with an additional element which is suitable to create a spreading force.
  • the additional element has a first end that is in contact with a part of the rod and a second end that is in contact with a part of the housing of the endpiece.
  • a spring element is arranged between the first and second end of the additional element, the spring element generating a spreading force that is directed to again increasing the distance between the first and second end of the additional element, if the first end is moved towards the second end.
  • the invention identifies that a tendency for the rod to swivel about its longitudinal axis relative to the housing of the endpiece, as it may occur in designs as shown in WO 2021/249954 A1 for cases where the coupler head has been folded back, can be countered by providing the additional element that is suitable to create a spreading force as described above.
  • the tendency of the rod to swivel about the longitudinal axis relative to the housing of the endpiece will lead to a part of the rod to come closer to a certain part of the housing.
  • the invention is directed to a new design for an endpiece of a coupling rod. It is believed that a new design for such an endpiece is a marketable good in itself.
  • the endpiece modified according to the invention can, for example, be used as a replacement piece for the endpiece that is disclosed as part of the draft gear shown in EP 1 719 684 B1 .
  • the "Lagerbock 4" and the "Drehzapfen 16" of the design shown in EP 1 719 684 B1 can remain the same if the draft gear according to EP 1 719 684 B1 is modified according to the invention. All key elements of the invention are realized within the endpiece.
  • the twisting forces applied to the rod that are to be counteracted by the additional element provided according to the invention are fully offset with the additional element provided to the endpiece.
  • the endpiece comprises a housing.
  • This housing can be a unitary body.
  • the housing is made up of two shells that are connected to one another, for example an upper shell and a lower shell that are screwed together in a horizontal parting plane.
  • the housing preferably the shells that make up the housing, are either machined out of solid pieces or are cast pieces (that after the casting are possibly being further machined).
  • the housing has a longitudinal shape and extends along a longitudinal axis.
  • the endpiece according to the invention further has a rod.
  • the rod has a housing part that is arranged inside the housing of the endpiece.
  • the rod can be a rod that is attached to a coupling rod.
  • the design shown in EP 1 719 684 B1 in Figs. 4 to 6 shows such a shorter rod.
  • the item is being referred to as "hinteres Ende des Kupplungsschafts 3" in EP 1 719 684 B1 and terminates in an enlarged part that can be connected to a further part of the coupling rod.
  • Such a design with a shorter rod that has the housing part arranged in the housing of the endpiece allows for the draft gear to be manufactured separately and, once it is finished, for the remainder of the coupling rod and the coupling head to be attached to it.
  • the rod that forms part of the endpiece is the coupling rod itself.
  • the rod would have an end to which the coupler head is connected.
  • the coupling rod has a first rod part and a second rod part, whereby the coupler head is attached to the second rod part and whereby the coupling rod has a rod joint being arranged between the first rod part and the second rod part, so as to allow the second rod part to be folded backwards towards the first rod part
  • the rod of the endpiece could be the first rod part.
  • the first rod part in such a design can be attached to the rod of the endpiece.
  • the endpiece according to the invention has an elastic connection that connects the housing part to the housing, the elasticity of the elastic connection allowing the rod to swivel about its longitudinal axis relative to the housing.
  • the swivel-movement preferably is a rotational movement around the longitudinal axis.
  • the elastic connection between the housing part of the rod and the housing preferably is provided between an outer circumferential surface of the housing part of the rod and an inward-facing surface of the housing.
  • the elastic connection can be provided by way of rubber material attached to the outer circumferential part of the housing part on the one side and the inward-facing surface of the housing on the other side.
  • the elastic connection is provided by way of ring-shaped elastic elements.
  • the housing part of the rod has one or several circumferential grooves and the housing has an inward-facing surface that has one or several circumferential grooves arranged on the inward-facing surface, whereby the elastic connection comprises ring-shaped elastic elements, each ring-shaped elastic element having an inner part being arranged in one of the circumferential grooves of the housing part and an outer part being arranged in one of the circumferential grooves of the inward-facing surface.
  • the elastic connection is provided by way of several elements that each have the shape of a circular ring section.
  • two elements that each have the shape of a circular ring section that spans over 180° can be placed together at their ends to form a ring-shaped elastic element.
  • the individual elements that each have the shape of a circular ring section are sometimes referred to as "banana-shaped” or “telephone receiver”-shaped (in German: “telefon Anlagenerförmig").
  • the housing part of the rod has one or several circumferential grooves and the housing has an inward-facing surface that has one or several circumferential grooves arranged on the inward-facing surface
  • the elastic connection comprises ring-shaped elastic elements that each are made up of a number of elements that each have the shape of a circular ring section, each such composed ring-shaped elastic element having an inner part being arranged in one of the circumferential grooves of the housing part and an outer part being arranged in one of the circumferential grooves of the inward-facing surface.
  • At least two circumferential grooves and two ring-shaped elastic elements are provided (be it two one-piece ring-shaped elements or be it two composite ring-shaped elements, each being made up of a number of elements that each have the shape of a circular ring section).
  • at least three circumferential grooves and three ring-shaped elastic elements are provided.
  • fewer than 15, preferably fewer than 10, circumferential grooves and ring-shaped elastic elements are provided.
  • the elastic connection that connects the housing part to the housing has a design that allows the rod to swivel about its longitudinal axis relative to the housing due to the elasticity of the elastic connection, leading to a deformation of the material that provides the elastic connection. If a rubber material is used as material for the elastic connection, the swivel movement of the rod about its longitudinal axis relative to the housing will lead to a deformation of the rubber material.
  • the design can also foresee that if the swivel movement of the rod about its longitudinal axis relative to the housing is larger than a predetermined amount, an outward-facing surface of the material that provides the elastic connection (for example the rubber material) that initially is in surface contact with an outward-facing surface of the rod or an inward-facing surface of the housing, looses the surface contact; for example lifts off or slips into a new position of surface contact.
  • an outward-facing surface of the material that provides the elastic connection for example the rubber material
  • the rod is moveable in linear direction relative to the housing at least to a certain degree.
  • the elastic connection not only by its elasticity allows the rod to swivel about its longitudinal axis relative to the housing but also allows for the rod to move along the rod's longitudinal axis relative to the housing at least to a certain degree.
  • the element is arranged outside of the housing.
  • the endpiece is provided with an additional element.
  • This additional element is arranged separately from the elastic connection that connects the housing part to the housing.
  • the additional element provided is suitable to create a spreading force.
  • the element has a first end that is in contact with a part of the rod.
  • the first end is connected to a part of the rod.
  • an additional plate can be provided on the outer circumference of the rod. This additional plate attached to the circumferential surface of the rod can be considered the first end.
  • the first end that is in contact with a part of the rod is attached to the rod but is attached to the rod in a releasable manner.
  • the first end can be screwed to the outer circumference of the rod, allowing maintenance to the element should the element become damaged.
  • the additional element has a second end that is in contact with a part of the housing.
  • the second end of the additional element is a free surface that is in surface contact with a part of the housing.
  • the second end that is in contact with a part of the housing can slide along a surface of the housing.
  • the first end of the additional element is fixedly, but preferably releasably, attached to a part of the rod, while the second end of the additional element is in surface contact with a part of the housing, but not attached to a part of the housing.
  • the additional element is attached to the rod, but only in surface contact with the housing allows for movements of the rod to take place relative to the housing along the longitudinal axis of the rod.
  • a spring element is arranged between the first end and the second end, the spring element generating a spreading force that is directed to again increase the distance between the first end and the second end, if the first end is moved towards the second end.
  • the spring element is designed and arranged in such a manner that starting from an initial position, where the spring element might be relaxed or might be loaded to a smaller extent, the spring element is loaded or loaded further, if the first end is moved towards the second end. (Further) loading the spring element leads to the spring element providing the spreading force.
  • the spring element is arranged in such a manner that the spring force that it generates is directed in a plane perpendicular to the longitudinal axis, preferably in a tangential direction to a circular shaped outer circumference of the rod, if the rod in a preferred embodiment is designed to have such a circular shaped outer circumference.
  • the spring element can be a damper, for example a gas hydraulic damper.
  • the spring element is a spring.
  • the spring element can for example be a coil spring.
  • the spring element is a disc spring or a series of disc springs arranged along a line.
  • the additional element is feasible, where the parts of the additional element are uncovered.
  • the first end of the additional element can be provided by a plate that is attached to a part of the rod.
  • a coil spring is attached to this plate, whereby the free end of the coil spring forms the second end, the second end being in surface contact with a part of the housing.
  • the spring element is, however, arranged within a housing. Given the dirty environments of couplers for multi-car vehicles, for example for trains, the risk exists that the spring element may become dirty and may lose its functionality.
  • the element has an element housing with a chamber, whereby the chamber has a chamber endwall.
  • An element rod is arranged to be at least partially arranged in the chamber and movable relative to the chamber endwall.
  • the spring element is arranged at least partially, preferably completely, inside the chamber.
  • the spring element preferably is arranged between the chamber endwall and a holding part of the element rod.
  • the holding part of the element rod can be a fixed connection between an end of the spring element and the element rod.
  • a straight line endpiece of a coil spring can be inserted into a hole in the element rod, the hole hence forming the holding part of the element rod and the coil spring in this embodiment being arranged between the chamber endwall and this hole of the element rod, with the linear endpiece of the coil spring being arranged in the hole.
  • the holding part is a protruding part that protrudes over other parts of the surface of the element rod.
  • a protruding part can be a simple pin that protrudes radially over other parts of the surface of the element rod.
  • the protruding part is a rim that circumferentially extends around the remaining parts of the element rod and protrudes radially outward from these remaining parts of the element rod. Such a rim provides a good countersurface for a spring element.
  • the spring element comprises one disc spring or several disc springs, whereby the one disc spring or the several disc springs are arranged between the chamber endwall and a holding part that radially extends from the element rod, preferably a rim shaped holding part that radially extends from the element rod.
  • the rim-shaped protruding element that forms the holding part of the element rod has a circumferential sealing element arranged around its most outward end. Said sealing element is arranged to seal against the wall of the chamber of the element. With the spring element being arranged within the chamber and with the sealing element sealing against the circumferential wall of the chamber, the sealing element prevents dirt from entering into the chamber and from coming into contact with the spring element.
  • the element rod is designed to be movable relative to the chamber endwall.
  • the chamber endwall has a through-hole and the element rod is arranged to extend through the through-hole.
  • a blocking element is arranged on that part of the element rod that is arranged outside of the chamber, the blocking element stopping the element rod from being pulled through the through-hole.
  • a blocking element can be a nut that is screwed onto an outside thread on an end of the element rod.
  • a thread is provided in the element rod that extends from an end of the element rod along the longitudinal axis of the element rod, whereby a screw is screwed into the thread, the screw having a head.
  • a free end of the element rod provides the second end of the element that is in contact with a part of the housing, preferably in a surface contact with a part of the housing, and preferably able to slide along that part of the housing.
  • the second end of the element is provided by an end surface of the head of the screw.
  • a lock screw is provided in a radially extending inner thread of the element rod, whose inner thread terminates in the thread that takes up the screw. Said lock screw can be used to lock the position of the screw in the thread.
  • a further element that is suitable to create a spreading force is provided, the further element having
  • the first end of the element is in contact with a first part of the rod and the first end of the further element is in contact with a second part of the rod, the first part of the rod being arranged on a first side of the rod and the second part of the rod being arranged on a second side of the rod, the second side being the opposite side of the first side.
  • the first end of the element can be in contact with an upper part of the rod, while the first end of the further element is in contact with a lower part of the rod.
  • the first end of the element is in contact with a leftward part of the rod, when viewed along the longitudinal axis of the rod, and the first end of the further element is in contact with a rightward part of the rod, when viewed along the longitudinal axis of the rod.
  • the second end of the element is in contact with a first part of the housing and the second end of the further element is in contact with a second part of the housing, the rod being arranged between the first part of the housing and the second part of the housing.
  • the first part of the housing is arranged on one side of a vertical plane that contains the longitudinal axis of the rod and the second end is arranged on the opposite side of such a vertical plane.
  • the first part of the housing is arranged on one side of a horizontal plane that contains the longitudinal axis of the rod and the second part of the housing is arranged on the other side of such a horizontal plane.
  • the draft gear according to the invention comprises
  • the bearing bracket has an opening and the endpiece is arranged partially within said opening.
  • the joint comprises
  • the upper bracket and the lower bracket have a break-away section each, said break-away section containing the hole.
  • the break-away section can extend through an opening in the bearing bracket to a plate that is screwed to the back of the bearing bracket.
  • the screws can be designed to break upon the application of a certain linear force; breaking away of the screws setting free the plate and the break-away sections, allowing the endpiece to move relative to the remainder of the bearing bracket.
  • the longitudinal axis B of the rod is a horizontal axis.
  • the element rod extends along the longitudinal axis C, whereby in a preferred embodiment, the longitudinal axis C is a horizontal axis.
  • the longitudinal axis B is arranged in a first vertical plane and the longitudinal axis is arranged in a second vertical plane, whereby the angle between the first vertical plane and the second vertical plane is >0° and ⁇ 180°, preferably >25° and ⁇ 150° and preferably >45° and ⁇ 135°, and preferably is 90°.
  • the coupler according to the invention comprises a draft gear according to the invention, the rod of the endpiece either forming a part of a coupling rod or the rod of the endpiece being attached to a coupling rod, whereby a coupler head is attached to the coupling rod.
  • the coupling rod has a first rod part and a second rod part, whereby the first rod part is either attached to the rod of the endpiece or is formed by the rod of the endpiece, and whereby the coupler head is attached to the second rod part, whereby the coupling rod has a rod joint being arranged between the first rod part and the second rod part, the rod joint allowing the second rod part to be folded backwards towards the first rod part.
  • a draft gear according to the invention or a coupler according to the invention is built, whereby the term "built” includes the new building of a draft gear or a coupler during the rehaul or repair of a draft gear.
  • the method comprises the steps of
  • the multi-car vehicle is a train.
  • Fig. 1 to 4 show draft gear 1 for a coupling rod 2.
  • the draft gear 1 comprises a bearing bracket 3 suitable to be attached to a car of a multi-car vehicle.
  • the draft gear 1 further comprises an endpiece 4 and a joint 5.
  • the joint 5 is arranged between the bearing bracket 3 and a housing 6 of the endpiece 4, whereby the joint 5 allows the housing 6 to swivel about the vertical axis A relative to the bearing bracket 3.
  • the joint 5 comprises
  • the upper bracket 9 and the lower bracket 12 can be designed to have a break-away section 44 each, said break-away section 44 containing the hole 8, 11.
  • the break-away section 44 can extend through an opening 45 in the bearing bracket 3 to a plate 46 that is screwed to the back of the bearing bracket 3.
  • the screws (not shown in Fig. 1 ) can be designed to break upon the application of a certain linear force; breaking away of the screws setting free the plate 46 and the break-away sections 44, allowing the endpiece 4 to move relative to the remainder of the bearing bracket 3.
  • the endpiece 4 comprises the housing 6 and a rod 13, which in the embodiment shown in Fig. 1 to 4 is a detachable endpiece of the coupler rod 2.
  • the rod 13 has a housing part 14 that is arranged inside the housing 6.
  • An elastic connection 15 connects the housing part 14 to the housing 6.
  • the elasticity of the elastic connection 15 allows the rod 13 to swivel about its longitudinal axis B relative to the housing 6.
  • the swivel movement is a rotational movement around the longitudinal axis B as indicated by the arrow C in Fig. 1 .
  • the housing part 14 of the rod has circumferential grooves 16 and the housing 6 has an inward-facing surface with circumferential grooves 17 arranged on the inward-facing surface.
  • the elastic connection 14 comprises ring-shaped elastic elements 18. Each ring-shaped elastic element 18 has an inner part being arranged in one of the circumferential grooves 16 of the housing part 14 and an outer part being arranged in one of the circumferential grooves 17 on the inward-facing surface of the housing 6.
  • the endpiece 4 has an element 20 and a further element 21, each being suitable to create a spreading force F.
  • the element 20 has a first end 22 that is connected to a part of rod 15 by way of a screw 23.
  • the element 20 also has a second end 24 that is in surface contact with a part of the housing 6.
  • a spring element 25 is arranged between the first end 22 and the second end 24, the spring element 25 generating a spreading force F that is directed to again increasing the distance between the first end 22 and the second end 24, if the first end 22 is moved towards the second end 24.
  • the first end 22 comprises two perpendicular or substantially perpendicular contact surfaces, where one of said contact surfaces is parallel to or substantially parallel to a surface of the second end and the second one is used to contact to the rod.
  • the element 21 is designed in the same manner as the element 20 and hence has a first end 22 that is connected to a part of rod 15 by way of a screw 23.
  • the element 21 also has a second end 24 that is in surface contact with a part of the housing 6.
  • a spring element 25 is arranged between the first end 22 and the second end 24, the spring element 25 generating a spreading force F that is directed to again increasing the distance between the first end 22 and the second end 24, if the first end 22 is moved towards the second end 24.
  • the element 20, 21 has an element housing 26 with a chamber 27, whereby the chamber 27 has a chamber endwall 28.
  • An element rod 29 is partially arranged in the chamber 27 and moveable relative to the chamber endwall 28.
  • the spring element 25 is arranged between the chamber endwall 27 and a holding part 30 of the element rod 29.
  • the spring element 25 comprises several disc springs 31.
  • the several disc springs 31 are arranged between the chamber endwall 27 and a holding part 30 that in the embodiment of Fig. 1 to 4 radially extends from the element rod 29.
  • a thread 32 is provided in the element rod 29 that extends from an end of the element rod 29 along the longitudinal axis C of the element rod 29, whereby a screw 33 is screwed into the thread 32.
  • the screw 33 has a head.
  • the second end 24 is provided by an endsurface of the head of the screw 33.
  • a lock screw 40 can be used to lock the position of the screw 33 in the thread 32.
  • the first end 22 of the element 20 is in contact with a first part of the rod 13, and the first end 22 of the further element 21 is in contact with a second part of the rod 13, the first part of the rod 13 being arranged on a first side of the rod 13 (in the embodiment of Fig. 3 on the top of the rod 13; which can also be described as being on one side of a horizontal plane that contains the longitudinal axis B of the rod 13) and the second part of the rod 13 being arranged on a second side of the rod 13 (in the embodiment of Fig. 3 on the bottom of the rod 13; which can also be described as being on another side of a horizontal plane that contains the longitudinal axis B of the rod 13), the second side being the opposite side to the first side.
  • the second end 24 of the element 20 is in contact with a first part of the housing 6, and the second end 24 of the further element 21 is in contact with a second part of the housing 6, the rod 13 being arranged between the first part of the housing 6 and the second part of the housing 6.
  • the arrangement can also be described such that the first part of the housing 6 is arranged on one side of a vertical plane that contains the longitudinal axis B of the rod 13 and the second part of the housing 6 is arranged on the opposite side of this vertical plane.
  • the housing 6 can be made up of an upper shell 34 and a lower shell 35 being screwed together by screws 33.
  • the housing can have a recess 36 adapted to receive the element housing 26 if the rod 13 is made to move linearly relative to the housing 6 for a certain distance.
  • the part of the housing 6 that the second end 24 of the element 20 is in contact with can be a plate 38 protruding from the remainder of the housing.
  • the plate 38 can have a wear plate 39 of a plastic material attached to it to facilitate the movement of the second end 24 relative to the housing 6.
  • Fig. 1 and 4 show that the wear plate 39 can have a chamfered front edge that facilitates the head of the screw 33 coming into contact with the wear plate 39 for situations where in certain driving conditions the rod 13 has moved out of the housing 6 so much that the head of the screw 33 leaves contact with the wear plate 39.
  • Fig. 3 shows that the head of the screw 33 can have a crowned surface that forms the second end 24.
  • Fig. 1 , 3 and 4 best show that a thread can be provided on the element rod 29 at the end opposite the second end 24.
  • a nut 41 with a locking screw 42 arranged in the nut 41 can be arranged on the thread.
  • This nut 41 can be used to define the position of the element rod 29 relative to the elements housing 26 and for pre-tensioning of the disc springs 31.
  • the chamber endwall 28 can have a hole through which the element rod 29 passes from inside the chamber 27 to the outside of the chamber 27.
  • the nut 41 is arranged on that part of the element rod 29 that is outside the chamber 27.
  • the holding part 30 that in the embodiment of Fig. 1 to 4 extends radially from the element rod 29 can be used to seal the open end of the chamber 27 by way of arranging a circular sealing element, such as the wearing ring 43, on the outer ring-shaped circumferential surface of the holding part 30.
  • a wearing ring 43 does not achieve a fluid tight seal as there remains a small gap, but the gap is sufficiently small to prevent dirt, dust, grease, etc. from entering the chamber 27.
  • Fig 5 shows a coupler 100 according to the invention.
  • the coupler 100 has a draft gear 1 according to the invention and a coupling rod 2 being attached to the rod 13 of the endpiece.
  • a coupler head 101 is attached to the coupling rod 2.
  • the coupling rod 2 has a first rod part 2a and a second rod part 2b, whereby the first rod part 2a is attached to the rod 13 of the endpiece 4.
  • the coupler head 101 is attached to the second rod part 2b, whereby the coupling rod 2 has a rod joint 102 being arranged between the first rod part 2a and the second rod part 2b, the rod joint 102 allowing the second rod part 2b to be folded backwards towards the first rod part 2a.
  • the coupler 100 can be brought into its operational state by aligning the first rod piece 2a and the second rod piece 2b into a straight line (not shown in Fig. 5 ).
  • the coupler 100 also has a non-operational state shown in Fig. 5 .
  • the non-operational state the second rod piece 2b has been swivelled to the side about the rod joint 102.
  • the weight of the second rod piece 2b and the weight of the coupler head 101 in the non-operational state are out of the line relative to the longitudinal axis B and hence create a momentum around the longitudinal axis B that is directed to rotate the rod 13 around the longitudinal axis B.
  • the spreading force F created by the element 20 and the further element 21 at least partially counteracts this momentum.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Pivots And Pivotal Connections (AREA)
EP22182186.1A 2022-06-30 2022-06-30 Endstück für eine kuppelstange, zugvorrichtung für eine kuppelstange, kupplung für ein mehrwagenfahrzeug und verfahren zum bauen einer zugvorrichtung oder einer kupplung Active EP4299406B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP22182186.1A EP4299406B1 (de) 2022-06-30 2022-06-30 Endstück für eine kuppelstange, zugvorrichtung für eine kuppelstange, kupplung für ein mehrwagenfahrzeug und verfahren zum bauen einer zugvorrichtung oder einer kupplung
PCT/EP2023/067849 WO2024003261A1 (en) 2022-06-30 2023-06-29 End piece for a coupling rod, draft gear for a coupling rod, coupler for a multi-car vehicle and method for building a draft gear or coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22182186.1A EP4299406B1 (de) 2022-06-30 2022-06-30 Endstück für eine kuppelstange, zugvorrichtung für eine kuppelstange, kupplung für ein mehrwagenfahrzeug und verfahren zum bauen einer zugvorrichtung oder einer kupplung

Publications (2)

Publication Number Publication Date
EP4299406A1 true EP4299406A1 (de) 2024-01-03
EP4299406B1 EP4299406B1 (de) 2024-07-03

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Country Status (2)

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EP (1) EP4299406B1 (de)
WO (1) WO2024003261A1 (de)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2812072A (en) * 1952-03-18 1957-11-05 Symington Gould Corp Draft rigging
US4136787A (en) * 1977-01-19 1979-01-30 Scharfenbergkupplung Gmbh Elastic hinge of a central buffer coupling for rail cars
EP1719684A1 (de) * 2005-05-03 2006-11-08 Voith Turbo Scharfenberg GmbH & Co. KG Mittelpufferkupplung für Schienenfahrzeuge
WO2017076871A1 (de) 2015-11-06 2017-05-11 Voith Patent Gmbh Verdrehgesicherte anlenkung zum gelenkigen verbinden einer kupplungsstange mit einem wagenkasten
US9902408B2 (en) * 2015-09-28 2018-02-27 Qingdao Sri Technology Co., Ltd. Vertical spring support device for coupler
WO2019045634A1 (en) 2017-09-04 2019-03-07 Dellner Couplers Ab SUPPORT FOR THE MOUNTING OF A SECOND PART ON A MAIN STRUCTURE BETWEEN BODY END OF A RAILWAY VEHICLE
CN112896224A (zh) 2021-02-04 2021-06-04 中车青岛四方车辆研究所有限公司 车钩及其锁定方法
WO2021249954A1 (en) 2020-06-08 2021-12-16 Dellner Couplers Ab Coupler for a rail vehicle and a rail vehicle with a coupler
EP3992054A1 (de) 2019-09-09 2022-05-04 Crrc Qingdao Sifang Rolling Stock Research Institute Co., Ltd. Faltbare fahrzeugkupplung und fahrzeug

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015122863A1 (de) * 2015-12-28 2017-06-29 Voith Patent Gmbh Vorrichtung zum gelenkigen Verbinden einer ersten Komponente mit einer relativ zu der ersten Komponente bewegbaren zweiten Komponente

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2812072A (en) * 1952-03-18 1957-11-05 Symington Gould Corp Draft rigging
US4136787A (en) * 1977-01-19 1979-01-30 Scharfenbergkupplung Gmbh Elastic hinge of a central buffer coupling for rail cars
EP1719684A1 (de) * 2005-05-03 2006-11-08 Voith Turbo Scharfenberg GmbH & Co. KG Mittelpufferkupplung für Schienenfahrzeuge
EP1719684B1 (de) 2005-05-03 2007-08-15 Voith Turbo Scharfenberg GmbH & Co. KG Mittelpufferkupplung für Schienenfahrzeuge
US9902408B2 (en) * 2015-09-28 2018-02-27 Qingdao Sri Technology Co., Ltd. Vertical spring support device for coupler
WO2017076871A1 (de) 2015-11-06 2017-05-11 Voith Patent Gmbh Verdrehgesicherte anlenkung zum gelenkigen verbinden einer kupplungsstange mit einem wagenkasten
WO2019045634A1 (en) 2017-09-04 2019-03-07 Dellner Couplers Ab SUPPORT FOR THE MOUNTING OF A SECOND PART ON A MAIN STRUCTURE BETWEEN BODY END OF A RAILWAY VEHICLE
EP3992054A1 (de) 2019-09-09 2022-05-04 Crrc Qingdao Sifang Rolling Stock Research Institute Co., Ltd. Faltbare fahrzeugkupplung und fahrzeug
WO2021249954A1 (en) 2020-06-08 2021-12-16 Dellner Couplers Ab Coupler for a rail vehicle and a rail vehicle with a coupler
CN112896224A (zh) 2021-02-04 2021-06-04 中车青岛四方车辆研究所有限公司 车钩及其锁定方法

Also Published As

Publication number Publication date
WO2024003261A1 (en) 2024-01-04
EP4299406B1 (de) 2024-07-03

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