To set a cargo receiving platform accurately at a reference angle by switching reference to one of a vehicle and a gravitational direction without reference to a tilt of a grounding surface of a vehicle.SOLUTION: A cargo receiving platform lifting device comprises: a lift cylinder which lifts a cargo receiving platform; a tilt cylinder which tilts the cargo receiving platform; a tilt sensor which measures a tilt of the cargo receiving platform based upon a gravitational direction; a control circuit which has an interlock function of executing a drive command for the lift cylinder on condition that the angle of the cargo receiving platform is a reference angle θr; an angle setting switch which sets a second set angle θ2 of the cargo receiving platform based upon a vehicle; and a mode switch which selects one of a first mode in which a reference angle of the card receiving platform is set based upon the gravitational direction and a second mode in which the reference angle of the cargo receiving platform is set based upon the vehicle. In the first mode, the reference angle θr when the output of the tilt sensor reaches a default preset value is employed, and in the second mode, the reference angle when the output of the tilt sensor reaches a value at the time of setting of the second set angle is employed.SELECTED DRAWING: Figure 13
【課題】車両の接地面の傾斜によらず基準を車両及び重力方向のいずれかに切り換えて正確に荷受台を基準の角度にする。【解決手段】荷受台を昇降させるリフトシリンダと、荷受台を傾斜させるチルトシリンダと、重力方向を基準に荷受台の傾斜を測定する傾斜センサと、荷受台の角度が基準角度θrであることを条件にリフトシリンダの駆動指令を実行するインタロック機能を持つ制御装置と、車両を基準に荷受台の第2設定角度θ2を設定する角度設定スイッチと、重力方向を基準に荷受台の基準角度を設定する第1モード、及び車両を基準に前記荷受台の基準角度を設定する第2モードのいずれかを選択するモードスイッチとを備え、第1モードでは傾斜センサの出力がデフォルトのプリセット値で場合を基準角度θrとし、第2モードでは傾斜センサの出力が第2設定角度の設定時の値である場合を基準角度とする。【選択図】図13
CARGO RECEIVING PLATFORM LIFTING DEVICE
荷受台昇降装置
2019-10-10
Patent
Elektronische Ressource
Japanisch
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 |