RAILROAD VEHICLE CARRIAGE

• Main Authors: KANEYA TAIZO, TAKINO YUICHIRO, OBA TAKUYA, HANAI KATSUYOSHI, KAMIYA SHOTA, YAOI TAKASHI, MORI KAKUMI
• Format: Patent
• Language: English; Japanese
• Published: 05.04.2023
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PREVENTING DERAILING OF RAIL VEHICLES; RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES ORARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; RAILWAYS; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAILVEHICLES

To provide a railroad vehicle carriage capable of improving steering property in curve segments while maintaining travelling stability in a straight line section.SOLUTION: A railroad vehicle carriage includes: a carriage frame; a first axle box and a second axel box for respectively retaining different axles; a first support device for supporting the first axle box; and a second support device for supporting the second axel box in a position deviated from the first support device in the rail direction of the carriage frame. The first support device and the second support device include: a first elastic body elastically deformed in at least one direction of a vertical direction, a rail direction, and a sleeper direction; a retaining member for retaining the first elastic body; and an interfering member sandwiched between the carriage frame and the retaining member. The interfering member of the second support device is harder than the interfering member for the first support device.SELECTED DRAWING: Figure 1 【課題】直線区間における走行安定性を維持しつつ、曲線区間における操舵性を高められる鉄道車両用台車を提供する。【解決手段】本開示は、台車枠と、異なる車軸をそれぞれ保持する第１軸箱及び第２軸箱と、第１軸箱を支持する第１支持装置と、台車枠のレール方向において第１支持装置とずれた位置で第２軸箱を支持する第２支持装置とを備える鉄道車両用台車である。第１支持装置及び第２支持装置は、上下方向、レール方向、及び枕木方向の少なくともいずれかの方向において弾性変形する第１弾性体と、台車枠に支持されると共に、第１弾性体を保持する保持部材と、台車枠と保持部材とに挟まれた介在部材と、を有する。第２支持装置の介在部材は、第１支持装置の介在部材よりも硬い。【選択図】図１