PURPOSE: To reduce transmission of vibration through fixing member, in a fan comprised of a motor and fan blades to be mounted through fixing member onto the rotor of motor, by forming a vibration-proof hole in said fixing member.

CONSTITUTION: The fixing member 15 is comprised of a crescent fixing section 19 to be fixed to the outside rotor 14, arched supporting section 20 to be fixed to the fan blade 16 and a fixing rod 21 for coupling between them 19, 20. Vibration-proof hole 23 is formed at the fixing rod 21 while remaining the radial reinforcing rib. The fixing member 15 has sufficient supporting strength although the rigidity will deteriorate because of the vibration-proof hole 23.