Backpack blower

Abstract

A backpack blower comprising a blower which has an air intake opening, a backpack frame which is used to support the blower on the back of a user, and a back pad that is coupled to the backpack frame and contacts the back of the user. The back pad is composed of a cushion material and has a back surface contacting the back of the user and an opposite surface. The air intake opening communicates with at least a portion of the opposite surface, so that the air intake noise of the blower can reach at least the portion of the opposite surface.

1 . A backpack blower comprising: 
 a blower having an air intake opening;    a backpack frame configured to support the blower on the back of a user; and    a back pad that is coupled to the backpack frame and is configured to contact the back of the user, the back pad comprising a cushion material and having a back surface contacting the back of the user and an opposite surface,    wherein the air intake opening communicates with at least a portion of the opposite surface so that the air intake noise of the blower can reach at least the portion of the opposite surface.    
     
     
         2 . The backpack blower according to  claim 1 , wherein 
 at least one partition is disposed between the air intake opening and the opposite surface; and    the at least one partition has numerous holes that allow the air intake noise of the blower to pass through.    
     
     
         3 . The backpack blower according to  claim 1 , wherein 
 a first partition and a second partition are disposed between the air intake opening and the opposite surface; and    each of the partitions includes numerous holes that allow the air intake noise of the blower to pass through.    
     
     
         4 . The backpack blower according to  claim 2 , wherein the at least one partition is an air intake guide which has a smooth raised part oriented toward the air intake opening in the central part.  
     
     
         5 . The backpack blower according to  claim 4 , comprising a ventilation cover which prevents foreign matter from being taken into the air intake opening, wherein the ventilation cover and the air intake guide are formed as an integral unit.  
     
     
         6 . The backpack blower according to  claim 5 , wherein the unit is supported on the backpack frame.  
     
     
         7 . A backpack blower comprising: 
 a blower having an air intake opening;    a backpack frame configured to support the blower on the back of a user; and    a back pad that is coupled to the backpack frame and is configured to contact the back of the user, the back pad being composed of a cushion material and having a back surface contacting the back of the user and an opposite surface,    wherein at least a portion of the opposite surface faces the air intake opening and communicates with the air intake opening.    
     
     
         8 . The backpack blower according to  claim 7 , comprising at least one partition between the air intake opening and opposite surface, wherein the at least one partition has numerous holes that allow the air intake noise of the blower to pass through.  
     
     
         9 . The backpack blower according to  claim 7 , wherein 
 a first partition and a second partition are disposed between the air intake opening and the opposite surface; and    each of the partitions includes numerous holes that allow the air intake noise of the blower to pass through.    
     
     
         10 . The backpack blower according to  claim 8 , wherein the at least one partition is an air intake guide which has a smooth raised part oriented toward the air intake opening in the central part.  
     
     
         11 . The backpack blower according to  claim 10 , comprising a ventilation cover which prevents foreign matter from being taken into the air intake opening, wherein the ventilation cover and the air intake guide are formed as an integral unit.  
     
     
         12 . The backpack blower according to  claim 11 , wherein the unit is supported on the backpack frame.  
     
     
         13 . A backpack working machine comprising: 
 a working member that generates noise;    a backpack frame which is used to support the working member on the back of a user; and    a back pad that is coupled to the backpack frame and is configured to contact the back of the user, and is a pad that is composed of a cushion material and has a back surface contacting the back of the user and an opposite surface,    wherein the working member communicates with at least a portion of the opposite surface so that the noise generated by the working member is attenuated by the back pad.