| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact three-line collective drum reel which can be operated by an operator wherein three drums are capable of independently rotating without interfering each other and also capable of simultaneously rotating. SOLUTION: In the drum reel of which center hole is rotatably set to a shaft of a drum mount, a narrow drum reel is structured by connecting a circular member 2 with outer periphery consisting of two flanges 1 and a cylindrical boss 3 provided at their respective center positions by a plurality of stays 4 radially provided from the boss 3 toward the circular member 2. In a drum part between the flanges, a plurality of rod materials 5 of which both ends are fixed at corresponding positions of the stays 4 of the respective flanges 1 are provided on a periphery around the boss 3, making the drum reel narrow. Three drum reels are aligned side by side and bolt holes are bored at positions corresponding to the stays 4 of the three drum reels. Connecting bolts 10 are inserted through the bolt holes and the three drum reels are integrated by their tip ends. COPYRIGHT: (C)2007,JPO&INPIT
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