Patent ID: 8161889
Filing Date: 2012-04-24
Classification: B61F,B62D

Abstract:
1. A bogie structure for a track type vehicle which runs along a predetermined track, said bogie structure comprising: a guide rail laid along the track, guide wheels making contact with the guide rail so as to travel along the guide rail, an arm member attached to the guide rail with the guide wheels, a guide wheel support bracket supporting the arm member underneath an axle of the vehicle so that the arm member is turnable left and right of the vehicle, and a turn linking member for linking the turning motion of the arm member to left and right wheels, wherein the arm member and the guide wheels are attached to the guide wheel support bracket so as to constitute a unit structure, the guide wheel support bracket having the unit structure is mounted to the axle or a bogie frame of the vehicle, the arm member has a center part and opposite end parts, the arm member extends longitudinally relative to the vehicle, the arm member is mounted at the opposite end parts with the guide wheels, the center part is supported to the guide wheel support bracket which is attached to the bogie frame with an arm member rotating and supporting part thereof being located underneath a differential mechanism portion of the axle of the vehicle, the arm member rotating and supporting part is constituted so that the arm member is attached by a pivotal support shaft which is attached to the guide wheel support bracket in a both end supporting configuration, and said pivotal support shaft is vertically held in a both end supporting configuration by the guide wheel support bracket and a protection frame attached to the lower part of the guide wheel support bracket.