JIB CRANE

JIB CRANE

A jib crane is provided which can prevent an unexpected movement of a burden and can sufficiently ensure the safety of a burden handling work. The jib crane has hoisting wire ropes 22 for lifting up and down of a hook 34, derricking wire ropes 24 for derricking operation of a jib 14 and a conversion...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: MIYAZAWA ISAO, TANAKA SEIKICHI, OMORI DAISUKE, FUKUMOTO TOSHINORI
Format: Patent
Sprache:eng
Schlagworte:
CRANES
HAULING
HOISTING
LIFTING
LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES
PERFORMING OPERATIONS
TRANSPORTING
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Beschreibung
Zusammenfassung:A jib crane is provided which can prevent an unexpected movement of a burden and can sufficiently ensure the safety of a burden handling work. The jib crane has hoisting wire ropes 22 for lifting up and down of a hook 34, derricking wire ropes 24 for derricking operation of a jib 14 and a conversion device 38 for fixing tips of the wire ropes 22 and 24 to a revolving frame 58 of a revolving table. The conversion device 38 has a V-shaped link 62 pivotally supported on a bearing bracket 56 via a pivot pin 60. The tips of the wire ropes 22 and 24 are connected to paired link arms 62a and 62b of the link 62.