PROBLEM TO BE SOLVED: To provide a natural molded structure of a combination type arcuate running board.SOLUTION: A natural molded structure of a combination type arcuate running board is characterized in that symmetric 2-arcuate side frames 1a, 1b are installed on both sides of a running machine frame 1, respectively, front and rear edges are made higher than a middle stage position, together, multiple fixed bases 11a, 11b are installed in the inside rail lines of respective arcuate side frames 1a, 1b, respectively, and fixation holes 111a, 111b are installed on each fixed base. The elastic running board 2 is configured such that multiple plate bodies 20 are composed in close proximity to each other and are mutually corresponding to the fixation hole location of each fixed base, perforations 21 are installed to each plate body 20, many fixing bolts 22 are passed to the perforations 21 corresponding to each other, and thereby each plate body 20 of the elastic running board 2 is fixed on the fixation hole and pressed on the fixed base. As a result, the elastic running board naturally molds the arcuate running board with the front end being higher than the rear end according to the arcuate angle of each arcuate side frame.SELECTED DRAWING: Figure 2【課題】組合せ式弧状ランニングボード自然成型構造を提供する。【解決手段】組合せ式弧状ランニングボード自然成型構造はランニングマシン枠フレーム１の両側に、対称の２個の弧状側枠１ａ、１ｂをそれぞれ設置し、前後端ともに中段位置より高く、各弧状側枠１ａ、１ｂ内側沿線には複数の固定台１１ａ、１１ｂをそれぞれ設置し、各固定台上には固定孔１１１ａ、１１１ｂを設置する。弾性ランニングボード２は複数の板体２０が相互に近接して組成され、各固定台の固定孔位置に相互に対応し、各板体２０には穿孔２１を設置し、多数の固定ボルト２２を相互に対応する穿孔２１に通すことで、弾性ランニングボード２の各板体２０を固定孔上に固定し、固定台上で圧迫する。これにより弾性ランニングボードは各弧状側枠の弧状角度に従い、前端が後端より高い弧状ランニングボードを自然に成型する。【選択図】図２
