PROBLEM TO BE SOLVED: To provide a hoisting accessory that allows an object to be hoisted to be coupled to a wire and decoupled easily although having a simple constitution.SOLUTION: While an engagement member 36 is located at an upward movement position, a lower part of a wire-side hoisting accessory 30 can pass through an insertion/extraction opening part 12a, but the engagement member spreads when at an expansion position and the lower part is unable to pass through the insertion/extraction opening part. When the lower part of the wire-side hoisting accessory is lowered into the insertion/extraction opening part, the engagement member abuts on the insertion/extraction opening part and is swung upward on bearing the weight of the wire-side hoisting accessory to move to the upward movement position, thereby allowing the lower part to pass through the insertion/extraction opening part. When the lower part of the wire-side hoisting accessory is accommodated in a receiving space 13b, the engagement member swings to the expansion position with its own weight to spread, and while the engagement member is located in the receiving space and swings to the expansion position, an inner cylinder member 20 is moved upward to move the engagement member to the upward movement position.SELECTED DRAWING: Figure 2
【課題】簡単な構成でありながら、吊上対象物をワイヤに連結させたり、この連結を解除させることが簡単に行えるように構成された吊り具を提供する。【解決手段】係合部材36が上動位置に位置した状態でワイヤ側吊り具30の下部が挿抜用開口部12aを通過可能であるが、展開位置に位置した状態では拡開して挿抜用開口部を通過できない構成であり、ワイヤ側吊り具の下部を挿抜用開口部内に下降させたときに、係合部材が挿抜用開口部に当接するとともにワイヤ側吊り具の自重を受けて上方に揺動されて上動位置に移動し、挿抜用開口部を通過可能となる構成であり、ワイヤ側吊り具の下部が受容空間13b内に受容されたときに、係合部材がその自重により展開位置に揺動して拡開するように構成されており、受容空間内に位置して展開位置に係合部材が揺動した状態で、内筒部材20を上動させることにより係合部材を上動位置に移動させることができる構成である。【選択図】図2
HOISTING ACCESSORY
吊り具
2016-08-22
Patent
Electronic Resource
Japanese
IPC: | B66C Krane , CRANES |