To provide a descending window opening and closing auxiliary tool that enables smooth opening and closing operation and facilities installation with a compact structure by reducing a sudden increase in load due to a repulsive force of a spring that is generated from a closed state to a fully open state.SOLUTION: A descending window opening and closing auxiliary tool 1 includes a main body 2 disposed below a descending window, and an arm 4 provided so as to be rotated up and down. The arm 4 includes a roller 4a in contact with a lower end of the descending window at a distal end thereof. A rotational force input from a gear 12 provided at a center of rotation of the arm 4 is inverted to a reciprocal motion of a rack 14 through an intermediate gear 16. A compression spring 8b is provided in a compressed state by a stopper 8a restricted by a guide 8c, at a spring unit 8 connected to the rack 14. A compression spring 6 is disposed in series with the compression spring 8b. A repulsive force of the compression spring 6 is transmitted to the compression spring 8b through the stopper 8a.SELECTED DRAWING: Figure 1

    【課題】コンパクトな構造でありながら閉状態から全開状態にかけて生じるバネの反発力に基づく負荷の急激な上昇を低減させることにより、スムーズな開閉操作を可能にし、且つ、設置を容易にする下降窓開閉補助具を提供する。【解決手段】下降窓開閉補助具1は、下降窓の下方に配置される本体2と上下に旋回可能に設けられるアーム4を備えている。アーム4の先端には下降窓の下端に当接するローラ4aを有する。アーム4の回転中心に設けられたギア12から入力される回転力は、中間ギア16を介してラック14の往復運動に変換される。ラック14に繋がるバネユニット8には、ガイド8cによって規制されたストッパー8aによって圧縮バネ8bが圧縮状態で設けられている。この圧縮バネ8bと直列に圧縮バネ6が配置されている。圧縮バネ6の反発力はストッパー8aを介して圧縮バネ8bに伝達される。【選択図】図1


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    Title :

    DESCENDING WINDOW OPENING AND CLOSING AUXILIARY TOOL


    Additional title:

    下降窓開閉補助具


    Contributors:

    Publication date :

    2022-02-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    E05F DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION , Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung / B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / F16F SPRINGS , Federn



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