To provide a grab device capable of avoiding a failure caused by impact or vibration applied to a claw.SOLUTION: A grab device 1 includes a ball screw 5 moving a nut 4 upward and downward with a screw shaft 3 rotatably supported by a girder 2, a plurality of claws 7 having upper ends connected to the girder 2 through a rotation shaft such that each lower end side is openable/closable, a connection member 8 in which an upper end is connected to the nut 4 and a lower end is connected to the claw, a servomotor 9 provided on the girder 2, a timing belt 12 stretched between a driving pulley 10 provided on a rotation shaft of the servomotor 9 and a driven pulley 11 provided on the screw shaft 3, and a ROSTA tensioner 13 acting on the timing belt 12.SELECTED DRAWING: Figure 1

    【課題】爪に生じる衝撃や振動に起因する不具合を回避できるグラブ装置を提供する。【解決手段】グラブ装置1は、ガーダ2に回動自在に支持されたねじ軸3でナット4を上下動するボールねじ5と、ガーダ2に対して上端が回動軸を介して連結され、各下端側が開閉し得るように構成された複数の爪7と、上端がナット4に連結され、下端が爪に連結された連結部材8と、ガーダ2に設けられたサーボモータ9と、サーボモータ9の回転軸に設けられた駆動プーリ10とねじ軸3に設けられた従動プーリ11との間に掛けられたタイミングベルト12と、タイミングベルト12に作用するロスタテンショナ13とを備える。【選択図】図1


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    Title :

    GRAB DEVICE


    Additional title:

    グラブ装置


    Contributors:

    Publication date :

    2022-06-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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