To achieve air blowing reduced in unevenness in an air flow range by expanding a comfortable region of a wind receiving person and changing air flow directions of all the circumferential directions, in a ceiling line to be used for generation of a circulating air flow.
In this ceiling fan, a second impeller 7 arranged in substantially parallel with a direction of a rotary shaft of a first impeller 5 is provided, and a mounting angle in the circumferential direction in relation to a horizontal plane 8 of a vane 6 of the second impeller 7 can be changed. As a result, the ceiling fan capable of changing the air flow direction in all the circumferential directions and expanding the comfortable region of the wind receiving person without unevenness can be obtained.
COPYRIGHT: (C)2010,JPO&INPIT
Yoshimasa Katsumi
| JP2007198337A | ||||
| JP29012960Y1 | ||||
| JP59105998A | ||||
| JP29010168Y1 |
Kentaro Fujii
Ikuro Terauchi