The present invention relates to a multi-part track wheel with a wheel tyre, with a wheel rim and with at least two elastic bodies arranged between the wheel tyre and the wheel rim, via which the wheel tyre is supported spring elastically on the wheel rim and which are arranged distributed in the circumferential direction around the rotary axis of the track wheel, wherein the elastic bodies are clamped between an inner circumferential surface of the wheel tyre and an outer circumferential surface of the wheel rim and in this case abut with their outer side assigned to the wheel tyre on the inner circumferential surface of the wheel tyre and with their inner side assigned to the wheel rim on the outer circumferential surface of the wheel rim and an elastic body for use in a track wheel. The track wheel according to the invention designed according to the one-ring concept provides an optimised low spring constant and the elastic body as an essential component for the spring properties allows the manufacture of a one-ring track wheel with optimised usage properties. This is achieved in that the elastic bodies are locked against a movement in the circumferential direction by forming elements provided in each case on the inner circumferential surface of the wheel tyre and/or on the outer circumferential surface of the wheel rim.

Disclosed are a method of configuring an additional air chamber member on an outer circumferential surface of a well portion of the vehicle wheel as a Helmholtz resonator in a tire air chamber, comprising: preparing a plurality of additional air chamber members for each size of the vehicle wheel, each additional air chamber member corresponding to a different resonance frequency; and selecting one of the additional air chamber members with the corresponding resonance frequency from the additional air chamber members in accordance with a size of a tire used in combination with the vehicle wheel and an additional air chamber member information system using the method.

An aerodynamic noise reduction member 30 includes: a plate-like support portion 32 sandwiched between a plurality of fins 24 and 26 of a brake disk 20 and a rotating member 102 of a railroad vehicle; and a plurality of protruding portions 34 protruding from the support portion 32. Each of the plurality of protruding portions 34 is provided in such a manner that, in a state in which the support portion 32 is sandwiched between the plurality of fins 24 and 26 and the rotating member 102, each of the protruding portions 34 partially occludes between the fastening fin 24 and the anchoring fin 26 adjacent to each other in a circumferential direction of the brake disk 20.

A wheel resonator for reducing a resonance phenomenon inside a tire of a vehicle may include a plurality of wheel resonators mounted to a tire wheel. First and second wheel resonators of the plurality of wheel resonators are fixed with each other by a fastening part including a protrusion disposed on an end of the first wheel resonator penetrating through a hole disposed in an end of the second wheel resonator. An end portion of the protrusion has a size greater than a size of the hole. As such, quality of a wheel through more reliable noise reduction by making a wheel resonator in a manner of forming a fitting type fastening part in the wheel resonator itself and fixing the wheel resonator by ultrasonic welding can be improved.

An aerodynamic noise reduction member 30 includes: a plate-like support portion 32 sandwiched between a plurality of fins 24 and 26 of a brake disk 20 and a rotating member 102 of a railroad vehicle; and a plurality of protruding portions 34 protruding from the support portion 32. Each of the plurality of protruding portions 34 is provided in such a manner that, in a state in which the support portion 32 is sandwiched between the plurality of fins 24 and 26 and the rotating member 102, each of the protruding portions 34 partially occludes between the fastening fin 24 and the anchoring fin 26 adjacent to each other in a circumferential direction of the brake disk 20.

Wheel apparatus for use with vehicles are disclosed. An example apparatus includes a wheel for a vehicle. The wheel has a groove disposed on an annular wall adjacent a drop well and extending away from the drop well. The example apparatus also includes a ring positioned in the groove.

A disc portion and a rim portion of a tire wheel are integrally formed simultaneously, with a resonance pipe formed between the disc and rim portions, by inserting a molten metal into a space formed by a mold combined with the resonance pipe by core pins.

A wheel resonator, which is provided by integrating a first member having a first welding surface with a second member having a second welding surface and includes a volume chamber and a communicating tube. The volume chamber has a flat shape and is configured to extend along an outer surface of a vehicle wheel when the wheel resonator is attached to the vehicle wheel. The first welding surface and the second welding surface are welded to each other, and are provided on a single welding plane. The welding plane extends in a circumferential direction and a width direction of the vehicle wheel when the wheel resonator is attached to the vehicle wheel, is a plane on which the volume chamber is divided into two volume portions, and is a plane on which the communicating tube is divided into two communication portions. The communicating tube extends along the welding plane.

A disc portion and a rim portion of a tire wheel are integrally formed simultaneously, with a resonance pipe formed between the disc and rim portions, by inserting a molten metal into a space formed by a mold combined with the resonance pipe by core pins.

The present invention relates to a multi-part track wheel with a wheel tyre, with a wheel rim and with at least two elastic bodies arranged between the wheel tyre and the wheel rim, via which the wheel tyre is supported spring elastically on the wheel rim and which are arranged distributed in the circumferential direction around the rotary axis of the track wheel, wherein the elastic bodies are clamped between an inner circumferential surface of the wheel tyre and an outer circumferential surface of the wheel rim and in this case abut with their outer side assigned to the wheel tyre on the inner circumferential surface of the wheel tyre and with their inner side assigned to the wheel rim on the outer circumferential surface of the wheel rim and an elastic body for use in a track wheel. The track wheel according to the invention designed according to the one-ring concept provides an optimised low spring constant and the elastic body as an essential component for the spring properties allows the manufacture of a one-ring track wheel with optimised usage properties. This is achieved in that the elastic bodies are locked against a movement in the circumferential direction by forming elements provided in each case on the inner circumferential surface of the wheel tyre and/or on the outer circumferential surface of the wheel rim.