PROBLEM TO BE SOLVED: To provide a technology to easily specify a working body at low costs in a working machine having a working body selected from a plurality of types.SOLUTION: One working body (21, 60, or 70) selected from a plurality of types is rotated by a driving source (11), and detection bodies (52) can be arranged on substantially the same circumference around an output shaft (31) of a transmission (30). The transmission (30) includes a sensor (54) that detects the detection body (52) when one working body (21, 60, or 70) rotates, and issues a detection signal. A control part (19) specifies one working body (21, 60, or 70) according to the detection signal received from the sensor (54) while the output shaft (31) rotates up to a preset number of times, and, based on the result of the specification, controls the driving source (11) to the number of rotations suitable for the work of one working body (21, 60, and 70).SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】複数種のなかから選択される作業体を有する作業機において、低コストで簡易に作業体を特定できる技術を提供すること。【解決手段】複数種のなかから選択された1つの作業体(21,60,70)は、駆動源(11)により回転し、伝動機(30)の出力軸(31)を中心として略同一円周上に検出体(52)が配置可能であり、伝動機(30)は、1つの作業体(21,60,70)の回転時に検出体(52)を検出して検知信号を発するセンサ(54)を備え、制御部(19)は、出力軸(31)が予め設定された回数までに回転する間にセンサ(54)から受けた検知信号に従って1つの作業体(21,60,70)を特定し、特定結果に基づいて1つの作業体(21,60,70)の作業に適した回転数に駆動源(11)を制御する。【選択図】図2
