To provide a safely apparatus of a gripping-type pole construction truck capable of safely working regardless of the gripping position of an object.SOLUTION: A safety apparatus of a gripping-type pole construction truck comprise a derricking cylinder 16 for derricking a boom, an arm cylinder 55 to make an arm vertically oscillate with respect to a boom tip, a vertical oscillating cylinder 62 to make a gripping part vertically oscillate with respect to an arm tip, a moment calculation part 103 to calculate the moment around an arm oscillating fulcrum in the gripping state of an object due to the gripping part, and a regulation part 105 to regulate the actuation of the vertical oscillating cylinder 62 when the calculated moment in the moment calculation part 103 exceeds a preset regulation moment.SELECTED DRAWING: Figure 9

    【課題】対象物の把持位置に依らず安全に作業することのできる把持式穴掘建柱車の安全装置を提供する。【解決手段】把持式穴掘建柱車の安全装置は、ブームを起伏動させる起伏シリンダ16と、ブームの先端部に対してアームを上下方向に揺動させるアームシリンダ55と、アームの先端部に対して把持部を上下方向に揺動させる縦首振りシリンダ62と、把持部により対象物を把持した状態においてアームの揺動支点回りに作用するモーメントを算出するモーメント算出部103と、モーメント算出部103において算出されるモーメントが予め設定された規制モーメントを超過したときに縦首振りシリンダ62の作動を規制する規制部105とを備える。【選択図】図9


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    Title :

    SAFETY APPARATUS OF GRIPPING-TYPE POLE CONSTRUCTION TRUCK


    Additional title:

    把持式穴掘建柱車の安全装置


    Contributors:

    Publication date :

    2023-11-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES / E04H Gebäude oder ähnliche Bauwerke für besondere Zwecke , BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES / E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren



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