LONG-LENGTH MEMBER FEED APPARATUS AND ADVANCE/RETREAT METHOD

To provide a long-length member feed apparatus and an advance/retreat method therefor which are effective for advancing/retreating a long-length member having a step on an outer circumferential face with space saving.SOLUTION: A feed apparatus 1 comprises: a rotary drive roller 110 which comes into contact with an outer circumferential face 91 of a long-length member 90 and advances/retreats the long-length member 90; a presser roller 120 for sandwiching the long-length member 90 with the rotary drive roller 110; and a roller presser part 130 for pressing the presser roller 120 against the outer circumferential face 91. The roller presser part 130 comprises: a stationary part 131 which is located away from the outer circumferential face 91; a bearing part 132 which is located between the stationary part 131 and the outer circumferential face 91 and holds the presser roller 120; and a plate spring 133 which is bent so as to be convex toward an extension direction D11 as an advance direction or a retreat direction of the long-length member 90 and is connected with the stationary part 131 and the bearing part 132 from the extension direction D11 to generate reaction force in accordance with a deviation of the bearing part 132 in a direction toward the stationary part 131.SELECTED DRAWING: Figure 3 【課題】外周面に段差を有する長尺部材を省スペースで進退させるのに有効な長尺部材の送り装置及び進退方法を提供する。【解決手段】送り装置１は、長尺部材９０の外周面９１に接し、長尺部材９０を進退させる回転駆動ローラ１１０と、回転駆動ローラ１１０との間に長尺部材９０を挟む押さえローラ１２０と、押さえローラ１２０を外周面９１に押し付けるローラ押さえ部１３０と、を備え、ローラ押さえ部１３０は、外周面９１から離れて位置する固定部１３１と、固定部１３１と外周面９１との間に位置し、押さえローラ１２０を保持する軸受部１３２と、長尺部材９０の前進方向又は後退方向である延出方向Ｄ１１に向かって凸となるように屈曲し、延出方向Ｄ１１から固定部１３１と軸受部１３２とに接続され、固定部１３１へ近づく方向への軸受部１３２の変位に応じた反力を発生する板バネ１３３と、を有する。【選択図】図３