PROBLEM TO BE SOLVED: To provide a columnar member for a lifting device which easily holds a rotary member of a drive device.SOLUTION: A columnar member for a lifting device includes: a body; a passage; an opening; and a female screw part. The passage is formed passing through the body. The opening is formed on a front surface of the body and communicates with the passage. A width of the opening is shorter than a diameter of the passage. The female screw part is formed on an inner surface of the passage. A rotary member is positioned in the passage and engages with the female screw part of the passage. A diameter of the rotary member is set longer than the width of the opening so as to prevent the rotary member from being removed from the columnar member through the opening. The columnar member easily holds the rotary member without using any slide element, and assemblage of the columnar member and the rotary member is safe.
【課題】駆動デバイスの回転部材を容易に保持できる昇降デバイス用円柱部材を提供すること。【解決手段】昇降デバイス用円柱部材は、本体、通路、開口及びめねじ部を有する。通路は、本体を通して形成される。開口は、本体の前面に形成され、通路と連通する。開口の幅は、通路の直径よりも短い。めねじ部は、通路の内面上に形成される。回転部材は、通路に位置し、通路のめねじ部と噛合する。回転部材の直径は、回転部材が開口を介して円柱部材から外れるのを防止するように開口の幅よりも長い。円柱部材は、摺動要素を全く用いずに回転部材を容易に保持し、円柱部材と回転部材との組合せは安全である。【選択図】図1
COLUMNAR MEMBER FOR LIFTING DEVICE
昇降デバイス用円柱部材
2016-01-12
Patent
Electronic Resource
Japanese
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |