PROBLEM TO BE SOLVED: To provide a placement table during jib storage for allowing an angle change cylinder interposed between a jib and a jib connection table to extend and contract without hindrance in a state of storing a jib set on the ground.SOLUTION: A placement table places thereon a jib connection table 3 of a jib set having a jib, the jib connection table 3, an angle change cylinder 4 interposed between the jib and the jib connection table 3, a support material with a rolling wheel at the lower part near a tip of the jib, and an engaging pin 33 fitted to the lower part of the jib connection table 3. A table body 51 of the placement table 5 is provided with an upward-opening pin receiving groove 52 capable of engaging with the engaging pin 33 on the jib connection table 3 side in a rotatable and detachable manner. The placement table 5 has a function in which, in a state of placing the jib connection table 3 on the placement table 5, the angle change cylinder 4 can extend and contact over a whole range from a fully contracted state to a fully extended state and the angle between the jib and the jib connection table 3 can be changed by the extension and contraction of the angle change cylinder 4.SELECTED DRAWING: Figure 1
【課題】ジブセットを地上に保管した状態で、ジブとジブ連結台間に介設している角度変更シリンダを支障なく伸縮させ得るようにするためのジブ保管時の置き台を提供する。【解決手段】ジブと、ジブ連結台3と、ジブとジブ連結台3間の角度変更シリンダ4と、ジブ先端寄り下部の転動輪つきの支持材と、ジブ連結台3の下部に取付けた係合ピン33とを有したジブセットの上記ジブ連結台3を載せ置くための置き台であって、該置き台5の台本体51に、ジブ連結台3側の係合ピン33を回転可能状態で且つ係脱自在に係合させ得る上向き開口のピン受溝52を設けているとともに、該置き台5は、ジブ連結台3を載せ台5上に載せ置きした状態で、角度変更シリンダ4が全縮小状態から全伸長状態までの全範囲で伸縮可能であり且つ角度変更シリンダ4の伸縮動作によりジブとジブ連結台3との角度を変更させ得る機能を有している。【選択図】図1
PLACEMENT TABLE DURING JIB STORAGE
ジブ保管時の置き台
2017-03-02
Patent
Electronic Resource
Japanese
IPC: | B66C Krane , CRANES |