TENSIONER LIFTER

PROBLEM TO BE SOLVED: To expand a range in which a bracing force can be exhibited, and to expand a use range, in a tensioner lifter in which a pressing body for making a tensioner contact with a tip is slidably held at a cylindrical support body attached to an engine main body while being biased to a direction in which the tensioner is pressed against an endless transmission belt, and a wedge member is inserted between a regulation member provided at the cylindrical support body and the pressing body at a sideway of the pressing body.SOLUTION: A contact face 53 contacting with a pressing body 38 of a wedge member 40 and a contact face 54 contacting with the wedge member 40 of the pressing body 38 are formed on a flat face in parallel with a moving direction of the pressing body 38, and a control face contacting with a regulation member 39 of the wedge member 40 is formed as a wedge face 58 which is inclined so as to intersect with a moving direction of the pressing body 38 at a slant. 【課題】機関本体に取付けられる支持筒体に、テンショナに先端部を接触させる押圧体がテンショナを無端伝動帯に押しつける方向に付勢されつつ摺動可能に保持され、押圧体の側方で支持筒体に設けられる規制部材と、押圧体との間にくさび部材が挿入されるテンショナリフタにおいて、突っ張り力を発揮し得る範囲を拡大し、使用範囲を大きくする。【解決手段】くさび部材４０の押圧体３８への接触面５３ならびに押圧体３８のくさび部材４０への接触面５４が、押圧体３８の移動方向と平行な平坦面に形成され、くさび部材４０の規制部材３９への接触面が押圧体３８の移動方向に対して斜めに交差するように傾斜したくさび面５８として形成される。【選択図】 図２