PROBLEM TO BE SOLVED: To improve increase in size and weight of truck frames formed by casting molding so as to increase adaptability to a small-sized vehicle.SOLUTION: A semi crawler-type work vehicle, in which driving sprockets 10L and 10R are mounted on driving shafts 9L and 9R at both sides of a travelling vehicle, front-side disposed wheels 11L and 11R, rear-side disposed wheels 12L and 12R and a plurality of rotatable wheels 13L, 13L and 13R, 13R are provided in truck frames 17L and 17R which can freely oscillate around a lateral shaft, is provided with crawler travelling devices 3L and 3R wound with rubber crawlers, where a sub frame 24, which is made of a sheet metal material and supports a front-side disposed wheel 11, is connected to a front side of a truck frame 17 and the rotatable wheels 13 and 13 are fitted to the sub frame 24 and the truck frame 17. Further the rotatable wheels 13 and 13 are fitted to a lower frame 17c of the truck frame 17, and the sub frame 24 is provided with a horizontal base 24b flush with a lower surface of the lower frame 17c, where the rotatable wheels 13 and 13 are mounted on the horizontal base 24b.SELECTED DRAWING: Figure 10
【課題】鋳物成形のトラックフレームの大型重量化を改善し、小型車両への適応性を拡大する。【解決手段】走行車両側の駆動軸9L,9Rに駆動スプロケット10L,10Rを装着し、横軸回りに揺動自在なトラックフレーム17L,17Rに、前側張設輪11L,11Rと、後側張設輪12L,12Rと、複数の遊転輪13L,13L…、13R,13R…を設け、ゴムクローラを巻回したクローラ走行装置3L,3Rを備え、トラックフレーム17の前側に、板金材からなり且つ前側張設輪11を支持するサブフレーム24を連結し、該サブフレーム24とトラックフレーム17に前記遊転輪13,13…を装着してなる。また、前記トラックフレーム17の下部フレーム17cに前記遊転輪13,13を装着し、サブフレーム24には、該下部フレーム17c下面と面一状の水平基盤24bを備え、該水平基盤24bに前記遊転輪13,13を装着する。【選択図】 図10
SEMI CRAWLER-TYPE WORK VEHICLE
セミクローラ型作業車両
2018-01-11
Patent
Electronic Resource
Japanese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
CRAWLER TYPE WORK VEHICLE, AND METHOD OF ATTACHING IN CRAWLER TYPE WORK VEHICLE
European Patent Office | 2015
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