Combined device having device for connecting cross beam for receiving pivot pins and two lower longitudinal beams of coach body for rail vehicle

{
  "publication_number": "US11505219B2",
  "country": "US",
  "kind": "B2",
  "title": "Combined device having device for connecting cross beam for receiving pivot pins and two lower longitudinal beams of coach body for rail vehicle",
  "abstract": "A device for connecting a cross member for receiving pivot pins on two lower longitudinal members of a car body for a rail vehicle. The cross member has a transversal part that connects the two longitudinal members to each other in the region of the connection, and a longitudinal part that extends to the closest car front. The lower longitudinal members extend over the complete length of the car body and consist of multi-chamber hollow profiles made of a fibre composite material. The number of chambers of the multi-chamber hollow profile of each longitudinal member is reduced in the region of the connection such that the wall material of at least one chamber was removed in such a way that the webs to the adjacent chambers are exposed. At these places, load-introducing elements engage, to which load-introducing elements the cross member is attached.",
  "claims": [
    "1. A combined device having a device for connecting a cross beam for receiving pivot pins and two lower longitudinal beams of a coach body for a rail vehicle, wherein the cross beam has a crossing section which connects the two longitudinal beams to each other in the area of the connection, and a longitudinal section which extends to the front of the next coach, and the lower longitudinal beams extend the entire length of the coach body and are formed as a multi-chamber hollow profile from a fibre composite material, the combined device comprises: the number of chambers in the multi-chamber hollow profile is smaller than the number of chambers in such a way that the webs to the adjacent chambers are exposed; one load distribution element or several load distribution elements are fixable to one or more of the exposed webs; the load distribution elements have toothed sections which are engageable with matched counter pieces at ends of the crossing section of the cross beam; and the cross beam is fixable by means of metallic connecting elements which protrude through the load distribution elements into one or more chambers of the respective lower longitudinal beam.",
    "2. The combined device according to claim 1, wherein the lower longitudinal beams are arranged on the lower lateral edges of the coach body.",
    "3. The combined device according to claim 2, wherein the load distribution elements are fixed to the lower longitudinal beam with the metallic connecting elements.",
    "4. The combined device according to claim 2, wherein the load distribution elements have an angled cross section and are thus fixed to at least two webs, or the load distribution elements have an angled cross section and are thus fixed to at least one web and the outer wall of the lower longitudinal beam.",
    "5. The combined device according to claim 2, wherein an end of the longitudinal section of the cross beam is supported in an end cross-member at an end of the coach body, wherein the end cross-member connects ends of the two lower longitudinal beams.",
    "6. The combined device according to claim 2, wherein a first type of cross beam which is designed for transmitting the coupling loading to the following coach has an interface for accommodating a coupling at an end of the longitudinal section which extends to the front of the next coach.",
    "7. The combined device according to claim 1, wherein the load distribution elements have an angled cross section and are thus fixed to at least two webs, or the load distribution elements have an angled cross section and are thus fixed to at least one web and the outer wall of the lower longitudinal beam.",
    "8. The combined device according to claim 7, wherein the load distribution elements are fixed to the lower longitudinal beam with the metallic connecting elements.",
    "9. The combined device according to claim 7, wherein an end of the longitudinal section of the cross beam is supported in an end cross-member at an end of the coach body, wherein the end cross-member connects ends of the two lower longitudinal beams.",
    "10. The combined device according to claim 7, wherein a first type of cross beam which is designed for transmitting the coupling loading to the following coach has an interface for accommodating a coupling at an end of the longitudinal section which extends to the front of the next coach.",
    "11. The combined device according to claim 1, wherein the load distribution elements are fixed to the lower longitudinal beam with the metallic connecting elements.",
    "12. The combined device according to claim 11, wherein an end of the longitudinal section of the cross beam is supported in an end cross-member at an end of the coach body, wherein the end cross-member connects ends of the two lower longitudinal beams.",
    "13. The combined device according to claim 11, wherein a first type of cross beam which is designed for transmitting the coupling loading to the following coach has an interface for accommodating a coupling at an end of the longitudinal section which extends to the front of the next coach.",
    "14. The combined device according to claim 1, wherein an end of the longitudinal section of the cross beam is supported in an end cross-member at an end of the coach body, wherein the end cross-member connects ends of the two lower longitudinal beams.",
    "15. The combined device according to claim 14, wherein a first type of cross beam which is designed for transmitting the coupling loading to the following coach has an interface for accommodating a coupling at an end of the longitudinal section which extends to the front of the next coach.",
    "16. The combined device according to claim 1, wherein a first type of cross beam which is designed for transmitting the coupling loading to the following coach has an interface for accommodating a coupling at an end of the longitudinal section which extends to the front of the next coach.",
    "17. The combined device according to claim 16, wherein the first type of the cross beam has an additional reinforcing profile.",
    "18. The combined device according to claim 17, wherein a second type of cross beam, which is directed towards a head section of the coach, has an interface for the connection of a crash pass-through conduction element at the end of the longitudinal section."
  ],
  "description_excerpt": "This application is a National Phase entry of PCT Application No. PCT/EP2018/053048, filed on Feb. 7, 2018, which claims the priority of German patent application No. DE 10 2017 102 561.8 filed on Feb. 9, 2017, the entire disclosures of the applications are incorporated herein by reference.\n\nThe invention relates to a device for connecting a cross beam for receiving pivot pins to two lower longitudinal beams of a coach body for a rail vehicle. The rail vehicle is to be suitable in particular for use in short distance operation, such as in underground and suburban railways, in which the rail vehicles or the train units formed of them need to be speeded up and slowed down at short intervals.\n\nKnown coach bodies of rail vehicles, in a conventional design, consist of a tubular construction with two end walls which as a rule are formed as a transition to an adjacent coach body. Alternatively, the end wall can also be formed as a driver's cab.\n\nIn a conventional design, the coach body consists of an underframe (also called undercarriage), two side walls and a roof. The assemblies, in particular the side walls and the roof, have a load-bearing, skeleton-like supporting structure, in which lightweight steel profiles are connected to each other or to a thin metal sheet which forms the outer cladding using known welding processes. In these constructions, cross beams are also arranged underneath the underframe, which receive the pivot pins which are supported in the bogie. Typically, two cross beams are assigned to a coach body, close to the ends.",
  "cpc": [
    "B61D 17/005",
    "B61F 1/12",
    "B61F 1/14",
    "E04D 3/366",
    "F16B 5/0241",
    "F16B 5/0642",
    "F16B 5/07",
    "Y02T 30/00"
  ],
  "ipc": [
    "B61D 17/00",
    "B61F 1/12",
    "B61F 1/14",
    "E04D 3/366",
    "F16B 5/02",
    "F16B 5/06",
    "F16B 5/07"
  ],
  "assignees": [
    "CRRC Qingdao Sifang Co Ltd",
    "Cg Rail Chinesisch Deutsches Forschungs und Entwicklungszentrum Fuer Bahn und Verkehrstechnik Dreden GmbH"
  ],
  "inventors": [
    "Jianying LIANG",
    "Chongcheng Zhong",
    "Jiajie He",
    "Junhai Liang",
    "Jian Du",
    "Dawei Ruan",
    "Werner Hufenbach",
    "Andreas Ulbricht"
  ],
  "filing_date": "2018-02-07",
  "publication_date": "2022-11-22",
  "grant_date": "2022-11-22",
  "priority_date": "2017-02-09",
  "application_number": "US-201816484661-A",
  "family_id": "61192916",
  "cited_by_count": 0,
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}