PROBLEM TO BE SOLVED: To provide a mower which can transmit motive power with a compact configuration.SOLUTION: A mower includes: an operation part which operates a mowing operation upon receiving motive power from a body an offset mechanism part which can be moved to an offset position in which the operation part is offset to a side of a travel direction of the body and a motive power transmission part which transmits the motive power to the operation part. The motive power transmission part includes a roller chain wound between a pair of sprockets. The motive power transmission part may include a tensioner for providing tensile force from outside toward inside of the roller chain.SELECTED DRAWING: Figure 1【課題】コンパクトな構造で動力を伝達可能な草刈り機を提供すること。【解決手段】草刈り機は、走行機体から動力を受けて草刈り作業を行う作業部と、前記作業部を、前記走行機体の進行方向に対して側方にオフセットした位置に移動可能なオフセット機構部と、前記動力を前記作業部に伝達する動力伝達部と、を備え、前記動力伝達部は、一対のスプロケットの間に巻き掛けられたローラーチェーンを含む。前記動力伝達部は、前記ローラーチェーンの外側から内側に向かって張力を与えるテンショナーを含んでもよい。【選択図】図1
