A jib attachment/detachment mechanism to mount a jib on a boom head includes a guide mechanism including a guide roller and a guide support configured to guide engaging portions of a jib support to positions of engagement with shaft pins of a boom head when the jib support is pulled up with a wire by using a winch and to prevent change of a state of the wire pulled up by the winch when the jib support is rotated around the shaft pins by contracting a cylinder.

    Un mécanisme de fixation et de détachement de flèche servant à installer une flèche sur une tête de mât comprend un mécanisme guide comprenant un galet de guide et un support de guide configuré pour guider des portions en engagement dun support de flèche vers des positions dengagement à laide de tiges darbre dune tête de mât lorsque le support de flèche est tiré par un fil au moyen dun treuil et pour prévenir un changement détat du fil tiré par le treuil lorsque le support de flèche est mis en rotation autour des tiges darbre en contractant un cylindre.


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    Title :

    JIB ATTACHMENT/DETACHMENT MECHANISM


    Additional title:

    MECANISME DE FIXATION ET DE DETACHEMENT DE FLECHE


    Contributors:

    Publication date :

    2019-11-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES



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