To provide a ladder truck that can smoothly and surely perform expansion and storage operation of an auxiliary step, in a structure in which the auxiliary step is installed in the tip side of a ladder of a plurality of steps expanding and contracting in slide motion.SOLUTION: A ladder truck includes: a main ladder 3 which is pivotally installed in a body in a manner that the terminal freely undulates; a sub-ladder 10 which is freely slidable and which can project to the tip side of the main ladder 3; an auxiliary step 20 which is pivotally installed to the tip side of the sub-ladder 10; a tilt cylinder 6 which undulates the main ladder 3; a slide drive cylinder 11 which drives the sub-ladder 10 in a direction projecting from the main ladder 3; and a rotary drive mechanism 30 which rotates the auxiliary step 20. The rotary drive mechanism 30 is provided with: a rotary driving sprocket 31 anchored in a pivot that rotates integrally with the auxiliary step 20; a chain 35 that is spread in the rotary driving sprocket 31; and a combination cylinder 36 that moves the chain 35.SELECTED DRAWING: Figure 3

    【課題】スライド動作で伸縮する複数段の梯子の先端側に補助ステップを設ける構造において、補助ステップの展開及び格納動作を円滑かつ確実に実行可能な梯子車を提供する。【解決手段】車体に末端が起伏自在に枢着された主梯子3と、摺動自在で主梯子3の先端側に突出可能な副梯子10と、副梯子10の先端部に枢着された補助ステップ20と、主梯子3を起伏させるチルトシリンダ6と、副梯子10を主梯子3から突出する方向に駆動するスライド駆動シリンダ11と、補助ステップ20を回動させる回動駆動機構30とを備え、回動駆動機構30は、補助ステップ20と一体に回転する枢軸に固着された回転駆動用スプロケット31と、回転駆動用スプロケット31に張架されたチェーン35と、チェーン35を移動させる複動シリンダ36とを有する。【選択図】図3


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    Title :

    LADDER TRUCK


    Additional title:

    梯子車


    Contributors:

    Publication date :

    2020-10-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    A62C FIRE-FIGHTING , Feuerbekämpfung / 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 / E06C LADDERS , Leitern



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