To provide a load-carrying platform mobile transport vehicle in which buckling deformation of a piston rod can be suppressed at the time of extension drive of a cylinder for longitudinal movement of a load-carrying platform.SOLUTION: A load-carrying platform mobile transport vehicle is provided with: a load-carrying platform 4 which is so supported as to be movable in a vehicle cross direction with respect to a chassis frame 11 of a vehicle 1; an expansion cylinder 51 which is interposed between the load-carrying platform 4 and the chassis frame 11, moves the load-carrying platform 4 to the rear of the vehicle by extension drive thereof and moves the load-carrying platform 4 to the front of the vehicle by contraction drive thereof; and a hydraulic circuit 70 which can supply a hydraulic pressure to and discharge the same from the expansion cylinder 51. In this load-carrying platform mobile transport vehicle, the hydraulic circuit 70 is provided with a differential circuit 75d which communicates a contraction side chamber 52b and an extension side chamber 52a, which are partitioned by a piston 51b of the expansion cylinder 51, with each other at the time of extension drive of the expansion cylinder 51.SELECTED DRAWING: Figure 4
【課題】荷台の前後移動用シリンダの伸長駆動時におけるピストンロッドの座屈変形を抑制可能な荷台移動式運搬車を提供すること。【解決手段】車輌1のシャシフレーム11に対し、車輌前後方向に移動可能に支持された荷台4と、荷台4とシャシフレーム11との間に介在され、伸長駆動により荷台4を車輌後方に移動させ、短縮駆動により荷台4を車輌前方に移動させる伸縮シリンダ51と、伸縮シリンダ51に、油圧を供給および排出可能な油圧回路70と、を備えた荷台移動式運搬車であって、油圧回路70に、伸縮シリンダ51の伸長駆動時に、伸縮シリンダ51のピストン51bで区画された短縮側室52bと伸長側室52aとを連通状態とする差動回路75dが設けられている荷台移動式運搬車とした。【選択図】図4
LOAD-CARRYING PLATFORM MOBILE TRANSPORT VEHICLE
荷台移動式運搬車
2019-02-21
Patent
Electronic Resource
Japanese
IPC: | B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein |