PROBLEM TO BE SOLVED: To provide a power transmission capable of simplifying the structure and reducing the installation space.SOLUTION: A first transmission shaft 32, a second transmission shaft 36 and a third transmission shaft 40 are provided with the respective shaft centers arranged parallel to each other to be disposed substantially like a triangle as seen from the shaft center direction. The first transmission shaft 32 and the second transmission shaft 36 are connected to interlock with each other through a first endless rotor 38, and the second transmission shaft 36 and the third transmission shaft 40 are connected to interlock with each other through a second endless rotor 42. A first tension arm 48 supporting a first tension wheel 47 for applying tension to the first endless rotor 38 and a second tension arm 50 supporting a second tension wheel 49 for applying tension to the second endless rotor 42 are supported to freely rock by the same support shaft 51.COPYRIGHT: (C)2014,JPO&INPIT【課題】構造の簡素化及び設置スペースのコンパクト化を図ることが可能となる動力伝達装置を提供する。【解決手段】第1伝動軸32、第2伝動軸36、及び、第3伝動軸40が、夫々の軸芯を平行に並べる状態で且つ軸芯方向視で略三角状に配置される状態で備えられ、第1伝動軸32と第2伝動軸36とが第1無端回動体38を介して連動連結され、且つ、第2伝動軸36と第3伝動軸40とが第2無端回動体42を介して連動連結され、第1無端回動体38に張力を付与する第1テンション輪体47を支持する第1テンションアーム48と、第2無端回動体42に張力を付与する第2テンション輪体49を支持する第2テンションアーム50とが、同一の支軸51にて揺動自在に支持されている。【選択図】図4
