Patent ID: 9098008
Filing Date: 2015-08-04
Classification: F24F,G03G

Abstract:
1. A blowing device comprising: a blower configured to blow air; an air duct comprising: a plurality of restraining portions disposed at different positions in the passage space of the body of the air duct in a direction of airflow, the restraining portions restraining flow of the air, wherein a most downstream restraining portion of the plurality of restraining portions, which is disposed at a most downstream position among the restraining portions in the direction of airflow, is configured to at least partially cover the passage space at the most downstream position with an air-permeable member having a plurality of air passage portions that are distributed throughout the air-permeable member, the plurality of air passage portions of the air permeable member provided at the outlet of the air duct, each of the air passage portions comprising an opening which faces a surface of the longitudinal portion of the oblong target structure, and wherein the opening of at least one of the restraining portions disposed upstream of the air passage portion extends parallel with the longitudinal direction of the oblong target structure and the opening of the at least one of the restraining portions is larger than each opening of each of the air passage portions.