COMBUSTION-TYPE POWER TOOL A combustion-type nail driver (1) uses a motor (18) for driving a fan (19). A motor holder (13) formed from plastic accommodates the motor. A cylinder head (11) 5 has a motor holder receiving portion (11 a) in which the motor holder is slidably movably disposed. A coil spring (15) has one end secured to the motor holder and another end secured to the cylinder head to thereby support the motor holder. Initial acceleration applied to the motor when combustion occurs can be suppressed and impact imparted upon the motor can also be suppressed by friction between the outer periphery of the 1o motor holder and the inner periphery of the motor holder receiving portion. A heat shielding plate (14) is interposed between the lower end surface of the motor and the cylinder head in order to prevent hot air combustion gas from entering into the motor.
