PROBLEM TO BE SOLVED: To promote simpler structure, lower cost, and lighter weight of a support leg operation device by allowing protrusion and storage of a plurality of shrinkable arms which support a support leg by using a single drive source, relating to an operation device for the support leg that supports a work vehicle such as a concrete pump vehicle.SOLUTION: A shrinkable arm that supports a support leg 40 of a vehicle comprises an outer arm 10, an inner arm 20, and a jack arm 30. These arms are allowed to contract/extend through chain mechanisms C1, C2 by using a single hydraulic motor M.SELECTED DRAWING: Figure 2
【課題】 コンクリートポンプ車両などの作業車両を支持する支持脚の作動装置であって、支持脚を支持する複数の伸縮アームを単一の駆動源により、張出、格納できるようにして、支持脚作動装置の、構造の簡素化、コストダウンおよび軽量化を図るようにした。【解決手段】 車両に支持脚40を支持する伸縮アームを、アウタアーム10,インナアーム20およびジャッキアーム30より構成し、それらのアームを単一の油圧モータMによりチエン機構C1,C2を介して伸縮作動できるようにした。【選択図】 図2
SUPPORT LEG OPERATION DEVICE OF WORK VEHICLE
作業車両の支持脚作動装置
2017-03-23
Patent
Electronic Resource
Japanese
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