PROBLEM TO BE SOLVED: To provide an auxiliary leg for a trailer which is allowed to efficiently extend.SOLUTION: In the auxiliary leg for a trailer, an outer cylinder 20 and an inner cylinder 30 extend in a substantially vertical direction, and the outer cylinder 20 is joined to a trailer and the inner cylinder 30 can move with respect to the outer cylinder 20. The leg can be changed in phase between a shrunk state where the inner cylinder 30 is moved upward and an extended state where the trailer is maintained in a substantially horizontal state in a state where the inner cylinder 30 is moved downward so that the auxiliary leg for a trailer is grounded, by actuating an elevating air cylinder 40. The auxiliary leg is switched between an unlock state where first and second division lock pins 60a and 60b are positioned at an advance position so that the leg cannot extend and a lock state where the first and second division lock pins 60a and 60b are positioned at a retreat position so that the leg can extend, by actuating an air cylinder for lock pins.SELECTED DRAWING: Figure 1B
【課題】効率良く伸縮できるようにする。【解決手段】外筒20及び内筒30はともにほぼ鉛直に延び、外筒20はトレーラに結合され、内筒30は外筒20に対して移動可能である。昇降用エアシリンダ40の作動によって、内筒30が上昇した縮小状態と、内筒30が下降してトレーラ用補助脚が接地した状態でトレーラがほぼ水平状態に維持される伸長状態との間を変相可能である。第1・第2分割ロックピン60a・60bが前進位置に位置して伸縮不可能なアンロック状態と、第1・第2分割ロックピン60a・60bが後退位置に位置して伸縮可能なロック状態との間をロックピン用エアシリンダの作動によって切り替えられる。【選択図】 図1B
AUXILIARY LEG FOR TRAILER
トレーラ用補助脚
2018-05-17
Patent
Electronic Resource
Japanese