MOUNTING DEVICE OF ROTOR, AND RANGE HOOD

To provide a mounting device of a rotor capable of reducing vibration and collision noise generated in start of rotation and stop of rotation of the rotor, and keeping the effect for a long period.SOLUTION: A motor shaft 33 of a motor 31 has a pin 35 for transmitting rotation, a boss portion 36 of a rotor has a shaft insertion hole 6, a groove 7, and a buffer member 8 with which the pin 35 is brought into contact, and which is composed of an elastic material. The pin 35 recesses and elastically deforms a pin contact surface of the buffer member 8 in a rotor mounting state in which the motor shaft 33 is inserted to the shaft insertion hole 6, and the pin 35 is fitted to the groove 7, and the buffer member 8 is disposed inside of the groove 7 when observed from the shaft insertion hole 6, and the pin contact surface of the buffer member 8 is positioned at a motor side with respect to a bottom portion 70 of the groove 7 in a rotor non-mounting state before the pin 35 is fitted in the groove 7.SELECTED DRAWING: Figure 8 【課題】回転体の回転開始時、回転停止時に発生する振動、衝突音を低減し、かつ長期間その効果を持続可能である回転体の取付装置とする。【解決手段】モータ３１のモータ軸３３は回転伝達用のピン３５を有し、回転体のボス部３６は、軸挿入孔６と、溝７と、前記ピン３５が当接し、かつ弾性材料から成る緩衝部材８を有し、前記モータ軸３３が前記軸挿入孔６に挿入され、前記ピン３５が前記溝７に嵌まった回転体取付状態で、前記ピン３５は、前記緩衝部材８のピン当接面を凹み弾性変形し、かつ前記ピン３５が前記溝７に嵌まる前の回転体非取付状態では、前記緩衝部材８は、前記軸挿入孔６から見て前記溝７の内側に設けられ、前記緩衝部材８のピン当接面は、前記溝７の底部７０よりも前記モータ側に位置している構成とした回転体の取付装置。【選択図】図８