To provide a balancer with lighter and easily handled.SOLUTION: A balancer 1 comprises a strut 10 extending upward from a base b, a supporting body 20 capable of moving vertically due to a hydrostatic pressure P with respect to the strut 10, an equal ratio expansion/contraction mechanism 40, and a movement restraint member 60. The equal ratio expansion/contraction mechanism is supported by the supporting body 20, the central fulcrum 42 of the equal ratio expansion/contraction mechanism 40 is rotatably supported around the horizontal axis by the supporting body, and the equal ratio expansion/contraction mechanism 40 suspends an object W at one end point 48 among both ends 44, 48 of the equal ratio expansion/contraction mechanism 40; one end 62 of the movement restraint member is connected to the other end point 44 among both ends 44, 48 of the equal ratio expansion/contraction mechanism 40, the other end 64 of the equal ratio expansion/contraction mechanism is constrained in the vertical direction, extends vertically, and does not expand/contract in the axial direction.SELECTED DRAWING: Figure 1

    【課題】より軽量で扱いやすいバランサを提供すること。【解決手段】基台bから上方に延在する支柱10と、支柱10に対して流体圧Pにより上下に移動可能な支持体20と、支持体20に支持される等比伸縮機構40であって、等比伸縮機構40の中央の支点42が支持体に水平軸回りに回転可能に支持され、等比伸縮機構40の両端44、48のうち一方の端点48で対象物Wを吊下する、等比伸縮機構40と、等比伸縮機構40の両端44、48のうち他方の端点44に一端62が接続され、他端64が上下方向に拘束され、鉛直方向に延在して軸方向に伸縮しない運動拘束部材60を備える、バランサ1。【選択図】図1


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    Title :

    BALANCER


    Additional title:

    バランサ


    Contributors:

    Publication date :

    2025-03-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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



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