PROBLEM TO BE SOLVED: To improve the durability of crushed-pipe type trailing arm parts, and to improve a torsion characteristic.SOLUTION: A torsion beam type suspension structure for a vehicle comprises a pair of trailing arm parts which are arranged while being apart from each other to a vehicle width direction, and a torsion beam part which extends to the vehicle width direction, and is connected to a pair of the trailing arm parts. The torsion beam part includes a center part and an end part in the vehicle width direction, and the center part is constituted of a pipe having a closed cross section structure which is crushed so as to be formed into a U-shape at a cross section in a vehicle fore-and-aft direction, and in the vehicle width direction, a wall thickness of the pipe at the center part is thinner than a wall thickness of the end part.SELECTED DRAWING: Figure 3
【課題】クラッシュドパイプ式のトレーリングアーム部の耐久性の向上および捻れ特性の向上を実現する。【解決手段】車両用のトーションビーム式サスペンション構造であって、車幅方向に離間して配置された一対のトレーリングアーム部と、前記車幅方向に延在し、前記一対のトレーリングアーム部に接続されたトーションビーム部と、を備え、前記トーションビーム部は、前記車幅方向において中央部および端部を含み、且つ、少なくとも前記中央部では車両前後方向の断面においてU字状になるように押し潰された閉断面構造のパイプで構成され、前記車幅方向において、前記中央部における前記パイプの肉厚は前記端部における肉厚よりも薄い。【選択図】図3
TORSION BEAM TYPE SUSPENSION STRUCTURE, TORSION BEAM, AND VEHICLE
トーションビーム式サスペンション構造、トーションビームおよび車両
2018-09-20
Patent
Electronic Resource
Japanese
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