Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
  • B61G11/00—Buffers
  • B61G11/18—Details

Definitions

• the invention relates to a mounting interface for attaching load-bearing components to a buffer of a rail vehicle, in particular access steps, steps, handles, and/or stands, preferably in the front area.
• the invention comprises a buffer system, e.g., a buffering device consisting of a crash element and a buffer, with such a mounting interface, e.g., a variable additional flange for additional attachments or for attaching a step to a crash element, in particular with a tear-off function.
• the relevant interfaces for mounting the nose assembly are located on the front panel of the rail vehicle's undercarriage.
• forward-projecting bracket structures were attached to the front panel, which, however, have the disadvantage of requiring a great deal of space.
• access steps, handles, or steps, their attachments must also be dimensioned such that they do not deform plastically during use and only exhibit minimal elastic deformation.
• Stands, access steps, handles, or steps are usually attached to one side of the vehicle body, e.g., to the driver's cab or front panel.
• the attachments must be dimensioned accordingly to ensure minimal elastic deformation.
• a massive, overhanging attachment leads to increased weight and, due to poor accessibility, potentially increased assembly effort, which is a disadvantage.
• additional assembly work may be required for adjustments to compensate for manufacturing tolerances between the various mounting points.
• document DE 29 31 909 A1 discloses a shunting step on railway carriages with a step holder and step grate, wherein a hanging iron of the step holder fastened to the carriage is provided at the lower end with a sliding sole, which is equipped with a stop bar for the front limitation of a pivot pin of an extendable step grate holder which can be moved on the sliding sole transversely to the longitudinal axis and has a rear limitation through the hanging iron, a cover plate is arranged on the stop bar and on the hanging iron and wherein the step grate support consists of two side cheeks which surround the sliding sole and the cover plate respectively from the outside and the side cheeks are firmly connected on the lower side by means of a stop piece.
• EP 1 914 145 AI describes a railway surveying arrangement consisting of surveying equipment and a support therefor, which can be releasably attached to the buffers of a rail vehicle.
• GB 17,054 A discloses means for coupling rail vehicles consisting of a base plate in combination with a protective frame or body protection.
• Printed matter DE 10 2018 103844 A1 deals with a deformation device with anti-climbing protection for rail vehicles to absorb forces in the event of a collision with a collision object.
• This deformation device comprises a shock-damping device with two buffer elements. for absorbing compressive forces in the event of a collision, which are arranged one after the other in the direction of travel.
• an anti-climbing device attached to the damping device is provided, which is designed to make it more difficult for the rail vehicle and/or the collision object to be lifted and/or the rail vehicle to be pushed over the collision object or vice versa in the event of a collision.
• Buffer system comprising a buffer with a buffer flange, a crash element which is attached to the buffer flange by means of screws and a mounting interface attached beyond the crash element to the front of the buffer flange by screws for attaching load-bearing components to a buffer of a rail vehicle, which a support body with a component fastening region and a different attachment region, characterized in that the support body of the support interface between the component fastening region and the attachment region has at least one weakening of the support body, which is designed such that when a predetermined force acts on the weakening, the component fastening region separates from the attachment region, wherein the component fastening region is equipped with fastening elements and/or bores for attaching the components and the attachment region is shaped such that it can be fastened with a screw at at least one fastening point on a front side of the buffer flange.
• a bracket interface for attaching load-bearing components to a buffer of a rail vehicle comprises a bracket body with a component attachment area and a different attachment area.
• the mounting body of the mounting interface which essentially also represents the mounting interface itself, comprises two distinct areas, one of which serves to secure the load-bearing components and the other for attaching the mounting interface to the buffer.
• load-bearing components refers to components that are intended to be attached to one end of a rail vehicle and can support a load, in particular access steps, steps, handles, stands, or brackets.
• the component mounting area is provided with fastening elements and/or holes for attaching the relevant load-bearing components for the rail vehicle.
• Fasteners are preferably bolts or screws that are already firmly attached to the bracket body. Holes are preferably already threaded, so that a component can simply be screwed onto the bracket body without necessarily using a nut (although one can, of course, be used additionally for securing).
• other fastening elements are also possible, e.g., rivet nuts or weld-on nuts.
• the mounting area is shaped so that it can be attached to at least one attachment point, in particular at least two attachment points, on the front of a buffer flange using screws, preferably buffer screws (usually commercially available screws).
• a buffer flange usually buffer screws (usually commercially available screws).
• it has the same shape as the buffer flange and has holes at the corresponding locations like the buffer flange, so that it can be attached together with the buffer flange using the buffer screws.
• the mounting area may have a recess in the center so that it can accommodate a buffer housing (i.e., a buffer sleeve or a buffer tappet) on the buffer flange. It is preferred that the mounting area only covers a portion of the surface of the buffer flange and has the aforementioned recess where the buffer housing is located on or at the buffer flange.
• a buffer housing i.e., a buffer sleeve or a buffer tappet
• a buffer flange is the plate with which a buffer is attached to a rail vehicle or a crash element.
• the attachment of the buffer flange to the front plate of a rail vehicle or to a The crash element is connected by screwing the components together using so-called "buffer screws.”
• buffer screws are well-known; they generally use commercially available screws and are used to securely connect a buffer to a rail vehicle (or crash element).
• end flange buffers are attached to the end of a buffer sleeve, while center flanges are pushed onto a buffer housing, particularly its buffer sleeve, and are attached particularly in the center area.
• the invention allows the existing interface between the crash element or front plate and the buffer to be used to create additional interfaces for additional attachments, but also to extend the buffer forward.
• a buffer system comprises a buffer, preferably a center-flange buffer, with a buffer flange and an aforementioned mounting interface attached to this buffer flange with screws, preferably with buffer screws. Furthermore, the buffer system additionally comprises a crash element, which is attached to the buffer flange by means of buffer screws. The mounting interface is attached to the front of the buffer flange (beyond the crash element).
• a rail vehicle according to the invention comprises a buffer system according to the invention.
• the rail vehicle is preferably a locomotive, in particular a shunting locomotive or a mainline locomotive for passenger or freight transport, or a wagon.
• the invention has the particular advantage of providing an interface for attaching components or attachments to a rail vehicle that extend far forward in the longitudinal direction of the vehicle or are intended to be positioned there.
• a corresponding design of the fastening elements also provides a certain degree of variability, allowing the rail vehicle to be modified.
• the attachment area has the same shape as a predetermined buffer flange or at least a portion of this buffer flange and can be fastened together with the buffer flange using predetermined buffer screws.
• This has the advantage of allowing easy assembly and disassembly (e.g., for replacement with a different mounting interface).
• a detachable fastening of the mounting interface, e.g., using the buffer screws, is very advantageous for this purpose.
• the mounting area has a recess so that it can encompass a buffer housing (i.e., buffer sleeve or buffer tappet) of a predetermined buffer.
• a buffer housing i.e., buffer sleeve or buffer tappet
• the mounting area preferably corresponds to only a part the surface of a buffer flange of a predetermined buffer and comprises at least one bore, in particular at least two bores, for the (buffer) screws. It preferably has a recess where a buffer housing is located on or at the buffer flange.
• a fastening element is a bolt or screw and is firmly attached to the mounting body in the component mounting area.
• a fastening element is a bore in the component mounting area, which is in particular provided with a thread.
• rivet nuts or weld nuts are also preferred.
• a preferred embodiment of the mounting interface comprises fastening elements or holes in the component fastening area designed for attaching additional attachments.
• additional attachments are preferably a ladder, a step, a handle, or a stand, in particular a coupler handle, a shunting step, a shunting stand, a maintenance stand, a railing, and/or a grab bar.
• the mounting body is shaped such that it has at least one (structural) weakening of the bracket body.
• This weakening is designed in such a way that when a predetermined force acts on the weakening, the component fastening area separates from the attachment area.
• the weakening is preferably a predetermined breaking point, in particular in the form of a perforation or a shearing element.
• the fastening of load-bearing components e.g. handles or steps, to the buffer side of the crash element should fail in the event of an accident. This is achieved by said weakening, which is, for example, a targeted weakening of the load-bearing cross-sectional area of the bracket body.
• the buffer is a center flange buffer.
• the mounting area of the mounting interface has the same shape as the buffer flange (at least the contour, or possibly a recess in the interior) and has Drill holes at the same locations as the buffer flange.
• the mounting interface is attached to the buffer flange using buffer screws.
• FIG. 1 shows a buffer 10 according to the prior art.
• the buffer has a buffer flange 11, which serves to attach the buffer 10 to a front plate of a rail vehicle 4 or, as shown here, to a crash element 3.
• the buffer flange 11 is attached using buffer screws 12, only one of which is shown here to also show the holes provided for this purpose in the buffer flange 11 and the crash element 3.
• the buffer sleeve 13 into which the buffer tappet 14 extends.
• An elastic buffer element (not visible here) is inserted between these two elements. This element can reversibly absorb and release pressures acting on the buffer plate 15. It can also preferably convert some of the energy into heat, thus acting as a shock absorber. In an accident involving much higher forces than normal, the crash element 3 serves to absorb these forces. It deforms in the process and irreversibly absorbs the crash energy.
• FIGS 2 and 3 show an attachment of load-bearing components 2 to a buffer 10 of a rail vehicle 4 according to the prior art.
• the arrows point to those areas of the rail vehicle 4 to which the load-bearing components 2 are attached.
• a step 2 serves as an example of a load-bearing component 2. However, it could also be a handle or a shunter's platform.
• the step 2 shown here is located in the front area of the rail vehicle 4.
• Step 2 is attached, as indicated more precisely by the arrows here, to the driver's cab or front end of the rail vehicle and to its car body side. Due to the relatively large step width, the attachments to the driver's cab or front end are comparatively solidly dimensioned to ensure minimal elastic deformation.
• Figure 4 shows a preferred buffer system 9 with an embodiment of a mounting interface 1 according to the invention, to which a step 2 can be attached as a supporting component 2.
• the buffer system 9 comprises a buffer 10 with a buffer flange 11, which is mounted on a crash element 3 as shown, for example, in Figure 1
• Figure 1 comprises the mounting interface 1 according to the invention on the front side of the buffer flange 11 (i.e. on the side facing the buffer plate 15), wherein the components are connected to one another by means of buffer screws 12.
• the mounting interface 1 here has a mounting body 1 (and in this example, essentially consists of this mounting body).
• This mounting body 1 has a component fastening area 1a, which is angled at a right angle relative to the attachment area 1b so that a step 2 (not shown here, see subsequent figures) can be placed on it and fastened with screws 7 in the holes of the component fastening area 1a.
• the attachment area 1b which here corresponds to a part of the surface of the buffer flange 11, namely its upper area, and with two buffer screws 12 on the buffer flange 11. Since the buffer sleeve 13 is welded to the buffer flange 11, or is passed through in the case of a center-flange buffer, a recess is present in the attachment area 1b, which partially encloses the buffer sleeve 13.
• the component fastening area 1a is provided with holes 5 (of which only two are provided with a reference symbol for clarity), although other fastening elements, such as screws, could also be present in the component fastening area 1a instead of the holes 5.
• the attachment area 1b can be fastened to the buffer flange 11 with two buffer screws 12, so that these buffer screws 12 connect the crash element 3, buffer flange 11, and the overlying mounting interface 1 to form the buffer system 9.
• fastening to additional fastening points on the buffer flange would also be possible.
• Figure 5 shows the front of a rail vehicle 4, in which a step 2 is attached by means of a preferred mounting interface 1.
• the step 2 is fastened by means of screws 7 in holes 5 (see e.g. Figure 5 ) is attached to the bracket interface 1 and the bracket interface 1 is attached to the buffer 10 of the rail vehicle 4 with two buffer screws 12.
• the mounting interface 1 has weakenings 6 in the form of a perforation, so that at precisely this point the component fastening area 1a tears off from the attachment area 1b.
• Figure 6 shows Figure 5 from a different angle.
• the two right-hand arrows indicate the attachment points on the buffer and the mounting interface 1, respectively; the left arrow indicates an additional attachment option on the side of the rail vehicle (as used in the prior art). Particularly in the case where attachment is made there, the weakened portion 6 in the mounting interface 1 is preferred.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Vibration Dampers (AREA)
• Body Structure For Vehicles (AREA)

Applications Claiming Priority (2)

Publications (2)

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ID=79230887

Family Applications (1)

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Citations (1)

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• 2021
  • 2021-02-01 DE DE102021200851.8A patent/DE102021200851A1/de not_active Withdrawn
  • 2021-12-06 ES ES21836022T patent/ES3058404T3/es active Active
  • 2021-12-06 EP EP21836022.0A patent/EP4259504B1/de active Active
  • 2021-12-06 WO PCT/EP2021/084349 patent/WO2022161670A1/de not_active Ceased
  • 2021-12-06 CN CN202180092449.3A patent/CN116802106B/zh active Active
  • 2021-12-06 US US18/263,748 patent/US20240083473A1/en active Pending
  • 2021-12-06 PL PL21836022.0T patent/PL4259504T3/pl unknown

Patent Citations (1)

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