Patent ID: 8984710
Filing Date: 2015-03-24
Classification: A01G,A47L

Abstract:
1. A blower apparatus comprising: a fan; a drive unit configured to drive the fan; a housing which accommodates the fan and which has a discharge port for discharging an air current generated by the fan; and an air conveying tube which includes a plurality of tubular members including first and second tubular members which are connected to each other and which guides the air current discharged from the discharge port in a predetermined direction, wherein one of the tubular members which is connected to the housing is configured to be fixed to the housing at a plurality of rotational positions about an axis of the tubular member, wherein a projecting portion is formed on a circumferential surface of the first tubular member, wherein a guide groove for guiding the projecting portion is formed in a circumferential surface of the second tubular member, the guide groove including a spiral portion, the guide groove defining an opened end configured to receive the projecting portion and a distal closed end opposite the opened end, wherein the projection portion is positioned within the guide groove and spaced apart from the distal closed end when the first and second tubular members are connected together, wherein the first tubular member includes, at one end thereof, an outer circumferential surface which is formed so as to gradually decrease in diameter, wherein the second tubular member includes, at one end thereof, an inner circumferential surface which is formed so as to gradually increase in diameter, and wherein the projection portion is positioned within the guide groove and spaced apart from the distal closed end when the circumferential surface of the first tubular member and the circumferential surface of the second tubular member are contacted together in an axial direction of the tubular member.