Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
  • B61G5/00—Couplings for special purposes not otherwise provided for
  • B61G5/02—Couplings for special purposes not otherwise provided for for coupling articulated trains, locomotives and tenders or the bogies of a vehicle; Coupling by means of a single coupling bar; Couplings preventing or limiting relative lateral movement of vehicles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
  • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
  • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
  • B61F3/00—Types of bogies
  • B61F3/12—Types of bogies specially modified for carrying adjacent vehicle bodies of articulated trains
  • B61F3/125—Types of bogies specially modified for carrying adjacent vehicle bodies of articulated trains with more than one axle or wheel set
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
  • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
  • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
  • B61F5/22—Guiding of the vehicle underframes with respect to the bogies
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
  • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
  • B61F5/50—Other details

Definitions

• the invention relates to a connecting rod for connecting a rail vehicle car body to a chassis and to an arrangement for connecting two rail vehicle car bodies comprising a connecting rod.
• the bogies of rail vehicles must be connected to the car body in such a way that the tensile and compressive forces between the bogie (e.g., a bogie) can be transmitted reliably and continuously, while the bogie is still able to perform all necessary movements relative to the car body. These movements include not only vertical compression but also rotational movements around a vertical axis when negotiating curves. It is common practice to connect a bogie, especially a bogie, to the car body by means of at least one connecting rod. This connecting rod typically has a mounting point at each end, usually a metal-rubber bearing. This allows the connecting rod to pivot through a certain angle relative to the car body and reduces the transmission of vibrations and noise from the bogie to the car body.
• the invention is therefore based on the objective of providing a linkage rod which can be used in vehicle concepts that provide a transverse stop bolt and which does not collide with the transverse stop bolt.
• a connecting rod which has a base body extending along a longitudinal axis, which at each of its ends comprises a bore oriented transversely to the longitudinal axis, wherein the base body has at least one recess whose respective longitudinal axis intersects the longitudinal axis of the base body.
• a typical linkage rod is penetrated by the fasteners used to attach it to a car body or chassis; these are often designed as noise- and vibration-damping rubber-metal elements.
• the connecting rod is designed such that it has a base body extending along a longitudinal axis, with a bore at each end of the base body. These bores are provided for attaching the connecting rod to a rail vehicle car body or a chassis. It is advantageous to insert a rubber-metal element into each of these bores, thus ensuring that the connecting rod can pivot through a specific angle relative to the car body and the chassis.
• the base body has at least one recess whose longitudinal axis intersects the longitudinal axis of the base body. This connecting rod can therefore be used to connect a chassis to a car body when the chassis is arranged between two coupled car bodies and a transverse stop bolt projects downwards from the coupling between the car bodies.
• the connecting rod is advantageously designed so that the holes are oriented parallel to each other. In the installed position of the connecting rod, these holes can be horizontal.
• the connecting rod must be aligned so that it can pivot around a horizontal axis relative to the car body to which it is connected. This ensures that suspension movements of the chassis are not affected.
• these bores are designed to accommodate a rubber-metal element, thus providing a noise- and vibration-damping mounting. Such a rubber-metal element also allows a small degree of rotation of the connecting rod around a vertical axis relative to the car body or chassis.
• a preferred embodiment of the invention provides that the longitudinal axis of the at least one recess and the longitudinal axes of the bores are rotated 90 degrees relative to each other. This allows a vertically oriented transverse stop bolt to penetrate the connecting rod while simultaneously ensuring that the bores for fastening the connecting rod are horizontally oriented.
• the connecting rod such that the at least one recess penetrates the base body. This means that the recess is completely surrounded by the material of the connecting rod on all sides, perpendicular to its longitudinal axis. In this way, bending stress on the connecting rod can be avoided, which can occur with other recess shapes, for example, if the connecting rod were C-shaped, meaning the recess was not completely enclosed.
• the manufacture of a linkage rod according to the invention can be carried out using steel, depending on the expected mechanical load. It is particularly advantageous to manufacture the linkage rod by means of a casting or forging process.
• the bores, due to the required tolerances, must naturally be machined.
• Certain alloys of light metal especially aluminum alloys, also allow a linkage rod to be manufactured using a forging process, which has the required strength.
• the invention comprises an arrangement for connecting two rail vehicle car bodies.
• the rail vehicle car bodies are pivotably connected to each other by means of a ball joint, and a bogie is arranged below the ball joint.
• a transverse stop bolt extending downwards is provided on the ball joint, and a connecting rod is arranged between one of the rail vehicle car bodies and the bogie, the connecting rod having at least one recess through which the transverse stop bolt passes.
• the recess in the connecting rod is dimensioned so that the transverse stop bolt is free from contact with the connecting rod in every permissible relative position of the bogie to the ball joint.
• a centrally located transverse stop bolt can be used together with a similarly centrally located connecting rod.
• mounting a bogie on a vehicle with a centrally located transverse stop bolt is simpler than on vehicles with other transverse stops.
• FIG. 1 shows an exemplary and schematic illustration of a linkage rod and a transverse stop bolt in an oblique view.
• a linkage rod 1 is depicted, comprising a base body extending along a longitudinal axis, at each of whose two ends a bore 2, 3 oriented transversely to the longitudinal axis is located.
• the linkage rod 1 is manufactured in one piece from metal and, in this embodiment, has three recesses 4, 5, 6.
• the two additional recesses 5, 6 serve to reduce the mass of the linkage rod 1 and are therefore not required for the function according to the invention.
• the recess 4 extends through the base body of the linkage rod 1, allowing a transverse stop bolt 7 to pass through the recess 4.
• the transverse stop bolt 7 is essentially rotationally symmetrical component which is designed at one of its ends for attachment to another assembly, for example a housing of a ball joint, and which is equipped at its other end, which is oriented downwards in the installation position, with at least one stop surface 8.
• Fig. 2 This shows, as an example and schematically, a linkage rod and a transverse stop bolt in a sectional view. It is linkage rod 1 from Fig. 1 The component is shown in a sectional view along its longitudinal axis, clearly showing the positions of the recesses 4, 5, and 6. The distance between the transverse stop bolt 7 and the inner wall of the recess 4 is also evident, as for the proper functioning of the connecting rod 1 and the transverse stop bolt 7, these components must not touch each other during the operation of a rail vehicle in any permissible relative position of the chassis with respect to the mounting point of the transverse stop bolt 7.
• Fig. 3 This shows an example and schematic of a linkage rod. It is linkage rod 1 from the Figs. 1 and 2 Shown without further components. The additional recesses 5, 6 serve solely to reduce the mass of the connecting rod 1.
• FIG. 4 Figure 1 shows an exemplary and schematic arrangement for connecting two rail vehicle car bodies.
• a connecting rod 1 is depicted, in a highly abstract manner, in its mounting position.
• a first car body 9 and a second car body 10 are pivotably connected to each other by means of a ball joint 11.
• a bogie 14 is arranged between the car bodies 9 and 10 below the ball joint 11, with a transverse stop bolt 7 projecting towards the bogie 14 attached to the ball joint 11.
• the bogie 14 has a stop 15 which limits the freedom of movement of the bogie 14 with respect to the transverse stop bolt 7.
• the bogie 14 is thus mounted so that it can be displaced by a certain distance in the transverse direction relative to the ball joint.
• the bogie 14 In the longitudinal direction relative to the ball joint 11, and thus to the car bodies 9 and 10, the bogie 14 is fixed by means of the connecting rod 1.
• the connecting rod is arranged centrally in the longitudinal direction of the bogie 14; therefore, without the recess 4, it would collide with the transverse stop bolt 7.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Vehicle Body Suspensions (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=96316156

Family Applications (1)

Country Status (2)

Citations (9)

• 2024
  • 2024-07-18 AT ATA104/2024A patent/AT528290B1/de active
• 2025
  • 2025-07-08 EP EP25188129.8A patent/EP4682016A1/fr active Pending

Patent Citations (9)

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