106 ダイレクトドライブ式スクリューエレベーター

概要

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We developed a new screw type elevator that used the screw & nut drive method. It is a system that transports the basket by using the hollow shaft motor for driving device and driving the nut directly along the screw. The screw is hung and fixed on the overhead beam that is located at top of guide rails, and all vertical loads including the basket act on the pit through those rails. By using screw & nut drive method; we could reduce the pit depth from 1200mm (conventional elevators) to 150mm. We also developed exclusive compact hoist-way for the screw type elevator at the same time. It is constructed of several units and the elevator parts, including the basket, can be integrated in those units in the factory before delivery. In this case, the installation at the site can be done in a short time and we can save time and man-power as the result. This hoist-way unit can be applied for small gap such 1.0m heights. As we explained above, screw type elevator has advantages of only 150mm pit depth, compact hoist-way cross-section, applicable for small gap and quite easy installation. So screw type elevator can be installed even if the site has certain difficulties for installation and it can promote the modernization for barrier free access.
一般社団法人日本機械学会の論文
2003-01-22