METHOD AND DEVICE FOR AUTOMATICALLY STRETCHING AND

专利名称：METHOD AND DEVICE FOR

AUTOMATICALLY STRETCHING ANDSTORING A SUB-JIB FOR A CRANE

发明人：TAKEBE, SEIICHIROU,ISHIDA, TERUHIKO申请号：EP959099申请日：19950222公开号：EP0747315A4公开日：19970604

摘要：The invention resides in a method and a device for automatically stretching andstoring a sub-jib for a crane which needs fewer man-hours for preparation and lessmanual work and which enables a sub-jib to be stretched and stored within a short periodof time in an easy, secure and safety fashion. To this end, the device comprises a laterallyholding device (20) for oscillating a sub-jib (6) in a lateral direction, a rotational bracketportion (30) for separating or connecting the sub-jib from or to a top boom (5), a firstlocking device (40) and a second locking device (60) for locking the top boom and therotational bracket portion, and a rotating device (50) for rotating the rotational bracketportion relative to the boom.

申请人：KOMATSU LTD.,KOMATSU MEC KABUSHIKI KAISHA

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