PROBLEM TO BE SOLVED: To provide a screw jack which is easily fitted to an inner cylinder upper end part, and prevents a vehicle receiving part from falling from the inner cylinder upper end part even when vibration is applied thereto for a long period of time when mounted on the vehicle.SOLUTION: A C ring storage groove part 20d for storing a C ring 23 is provided in an upper part of an inner cylinder 20. The C ring 23 is fitted and stored in the C ring storage groove part 20d, and a vehicle receiving part 22 is formed in an inverted cup shape having a circular upper face covering an upper end part of the inner cylinder 20, and a cylindrical side face. A C ring fitting groove part 22c, into which the C ring 23 is fitted, is provided on an inside surface of the vehicle receiving part 22. By covering the upper part of the vehicle receiving part 22 with the vehicle receiving part 22 and fitting the C ring 23 into the C ring fitting groove part 22c of the vehicle receiving part 22, the vehicle receiving part 22 is fitted rotatably to the upper part of the inner cylinder 20.SELECTED DRAWING: Figure 10
【課題】内筒上端部への取り付けが容易で、かつ、車両搭載時等に長時間に亘って振動を受けた場合でも車両等受部が内筒上端部から脱落するおそれがないスクリュージャッキを提供すること。【解決手段】内筒20の上部にはCリング23が収容されるCリング収容溝部20dが設けられていて、そのCリング収容溝部20dにCリング23が嵌まり収容される一方、車両等受部22は、内筒20の上端部に被さる円形上面と円筒形状側面とを有する逆カップ形状であって、当該車両等受部22の内側面にはCリング23が嵌るCリング嵌合溝部22cが設けられており、車両等受部22の上部に車両等受部22を被せ、当該車両等受部22のCリング嵌合溝部22cにCリング23を嵌めることにより、車両等受部22を内筒20の上部に回転可能に取付けた。【選択図】図10
SCREW JACK
スクリュージャッキ
2016-08-18
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 |