Vane-type air motor and air tool provided with vane-type air motor

摘要

Provided are a vane-type air motor which can start running more reliably even by means of low-pressure compressed air, and an air tool which is provided with the vane-type air motor.　The vane-type air motor (12, 112, 212) is provided with notches (44, 144, 244) for facilitating vane extrusion that meet with vane-accommodating grooves (40a, 140a, 240a) at a position of a specific depth from the outer peripheral surface (40b, 140b, 240b) of a rotor (40, 140, 240).