| 摘要 |
PROBLEM TO BE SOLVED: To provide a cable take-up device for a construction machine, which can compatible with a conductive cable of a large core number, can prevent certainly a situation that electrification becomes impossible, and is narrow in the width.SOLUTION: A cable take-up device 30 is for taking up a conductive cable 20 which has one end 20a fitted to a lower boom 11 and the another end 20b fitted to a middle boom 12 and secures electrification therebetween. The cable take-up device 30 includes: a fixing side sheave 40 which is fixed to the lower boom 11 and winds the one end 20a side of the conductive cable 20; a guide member 50 which is fitted to the fixing side sheave 40 and extends to a slide direction of the booms 11, 12; a slide side sheave 60 which is fitted as slidable to the guide member 50 and winds the another end 20b side of the conductive cable 20; and a spring 70 which is interposed between the slide side sheave 60 and the fixing side sheave 40 and energizes the slide side sheave 60 to a direction of separating from the fixing side sheave 40. |
