To provide a deformation amount detector for a boom or jib that can further enhance safety during crane work by directly monitoring boom or jib deformation.SOLUTION: A deformation amount detector for a boom or jib includes: first measurement means 20 that has a first base end measurement point 23 provided at a base end 22 of a boom 5 and a first tip measurement point 25 provided at a tip 24 thereof, and measures the distance between the above-mentioned measurement points; second measurement means 30 that has a second base end measurement point 33 provided at the base end 22 of the boom 5 and a second tip measurement point 35 provided at the tip 24 thereof, and measures the distance between the above-mentioned measurement points; and deformation amount calculation means 52 for calculating the deformation amount of the boom 5 based on the measurement data from the first measurement means 20 and the second measurement means 30.SELECTED DRAWING: Figure 2

    【課題】 ブーム又はジブの変形を直接監視することでクレーン作業時の安全性を一層高めることができるブーム又はジブの変形量検出装置を提案する。【解決手段】 ブーム5に対し、その基端部22に設けられた第1基端測定点23と、その先端部24に設けられた第1先端測定点25とを有し、両測定点間の距離を計測する第1計測手段20と、前記ブーム5に対し、その基端部22に設けられた第2基端測定点33と、その先端部24に設けられた第2先端測定点35とを有し、両測定点間の距離を計測する第2計測手段30と、前記第1計測手段20及び前記第2計測手段30とからの計測データに基づきブーム5の変形量を演算する変形量演算手段52と、を備える。【選択図】 図2


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    Title :

    DEFORMATION AMOUNT DETECTOR FOR BOOM OR JIB


    Additional title:

    ブーム又はジブの変形量検出装置


    Contributors:

    Publication date :

    2019-11-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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