PROBLEM TO BE SOLVED: To provide an expansion device attaining downsizing/weight-saving.SOLUTION: An expansion device 1 includes: a foundation part; first stage to third stage cylinders 8, 9, 10 as a plurality of driven parts; a double-face toothed belt 2 and pulleys 3, 4 as driving devices; toothed blocks 5, 6, 7, a support elastic body and a pin as connection parts; and connection bars 16, 18 and a plate 19 as engagement parts and lock parts. The plurality of driven parts are disposed on the foundation part parallel to each other so that the longitudinal directions thereof are each directed to a vertical direction. The driving device moves the driven part in a longitudinal direction. The connection part connects the driven part to the drive device in accordance with a positional relation between the driven part and the driving device. The engagement part engages the upper driven part with the lower driven part in accordance with the positional relation between the upper and lower driven parts mutually adjacent. The lock part locks the upper driven part on the lower driven part in accordance with the positional relation between the driven part and the driving device.SELECTED DRAWING: Figure 1

    【課題】小型化・軽量化を図ることが可能な伸縮装置を提供する。【解決手段】伸縮装置1は、基礎部と、複数の被駆動部としての第1段〜第3段シリンダ8、9、10と、駆動装置としての両面歯付ベルト2、プーリ3、4と、接続部としての歯付ブロック5、6、7、支持弾性体、ピンと、係合部と、ロック部としての連結バー16、18、プレート19とを備える。複数の被駆動部は、基礎部の上に、長手方向を上下方向に向けて互いに平行に配置される。駆動装置は被駆動部を長手方向に移動させる。接続部は、被駆動部と駆動装置の位置関係に応じて、被駆動部を駆動装置に接続する。係合部は、互いに隣接する上方と下方の被駆動部の位置関係に応じて、上方の被駆動部と下方の被駆動部とを係合させる。ロック部は、被駆動部と駆動装置の位置関係に応じて、下方の被駆動部に上方の被駆動部を固定する。【選択図】図1


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    Title :

    EXPANSION DEVICE


    Additional title:

    伸縮装置


    Contributors:

    Publication date :

    2017-11-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES




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