PROBLEM TO BE SOLVED: To provide a falling prevention device having a structure having a simpler, inexpensive and highly durable locking mechanism not needing any power and capable of changing the projection amount of a falling prevention plate.SOLUTION: A first link mechanism part 40 converts the linear motion of a driving slider 24 into the oscillation movement of an oscillation end roller 46. A second link mechanism part 60 links with the oscillation end roller 46 on a roller contact surface 64 of a second link lever part 61 to oscillate, and an output end roller 67 capable of changing a fitting position pushes a follower slider 62 fixed to a falling prevention plate 16. In the projection completed state and the storage completed state of the falling prevention plate 16, the direction of the operation force of the roller contact surface 64 pushing the oscillation end roller 46 is on a straight line connecting the oscillation end roller 46 and an oscillation shaft 44 of a first link lever part 43.SELECTED DRAWING: Figure 2

    【課題】より簡素で安価につくれて耐久性に優れた電力を必要としないロック機構を備え、且つ転落防止板の突出量を変更することができる構造を有した転落防止装置を提供すること。【解決手段】第1リンク機構部40は、駆動スライダ24の直線運動を揺動端ローラ46の揺動運動に変換する。第2リンク機構部60は、第2リンクレバー部61のローラ接触面64で揺動端ローラ46と連係して揺動し、取り付け位置を変更可能な出力端ローラ67が転落防止板16に固定された従動スライダ62を押す。転落防止板16の突出完了状態及び収容完了状態においては、ローラ接触面64が揺動端ローラ46を押す作用力の方向が、揺動端ローラ46と第1リンクレバー部43の揺動軸44とを結ぶ直線上となるように構成されている。【選択図】図2


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    Title :

    FALLING PREVENTION DEVICE


    Additional title:

    転落防止装置


    Contributors:

    Publication date :

    2016-09-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B61B RAILWAY SYSTEMS , Eisenbahnanlagen



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