Cleaner

Abstract

A cleaner including a cleaner body; and a rotatable drum, the drum including a drum body including a first tapered portion having a diameter decreasing from a first end of the drum body, a second tapered portion having a diameter that decreasing from a second end of the drum body, and a collecting portion at a position where the diameter of the first and second tapered portions are smallest, and a brush member extending between the first and second ends of, and protruding outwardly from, the drum body, wherein the drum is configured so that a distance from the longitudinal axis of the drum to an end tip of the brush member is maintained across the first and second tapered portions and the collecting portion, and rotation of the drum guides intake of foreign substances into the cleaner body, and foreign substances wound about the drum toward the collecting portion.

What is claimed is: 
     
         1 . A cleaner comprising:
 a cleaner body; and   a drum that is rotatable in a first direction about a longitudinal axis of the drum, the drum including:
 a drum body including:
 a first tapered portion having a diameter that decreases from a first end of the drum body along the longitudinal axis of the drum, 
 a second tapered portion having a diameter that decreases from a second end of the drum body along the longitudinal axis of the drum, and 
 a collecting portion at a position at which the diameter of the first tapered portion and the diameter of the second tapered portion are smallest, and 
 
 a brush member extending between the first end of the drum body and the second end of the drum body, and protruding outwardly from the drum body, 
   wherein the drum is configured so that:
 a distance from the longitudinal axis of the drum to an end tip of the brush member is maintained across the first tapered portion, the collecting portion, and the second tapered portion, and 
 rotation of the drum guides intake of foreign substances into the cleaner body, and guides foreign substances wound about the drum toward the collecting portion. 
   
     
     
         2 . The cleaner of  claim 1 , wherein
 the brush member is obliquely formed between the first end of the drum body and the second end of the drum body in a second direction opposite to the first direction.   
     
     
         3 . The cleaner of  claim 1 , wherein
 the brush member is obliquely extending from the first end of the drum body to the collecting portion in a second direction opposite to the first direction and is obliquely extending from the second end of the drum body to the collecting portion in the second direction.   
     
     
         4 . The cleaner of  claim 1 , wherein
 the drum body includes:
 a coupling portion protruding from the first tapered portion, the collecting portion, and the second tapered portion, and 
   the brush member is couplable to the coupling portion.   
     
     
         5 . The cleaner of  claim 4 , wherein
 the coupling portion is formed to have a height that increases in a direction from the first end of the drum body toward the collecting portion, and that increases in a direction from the second end of the drum body toward the collecting portion.   
     
     
         6 . The cleaner of  claim 4 , wherein
 the coupling portion is obliquely extending from the first end of the drum body to the collecting portion in a second direction opposite to the first direction and is obliquely extending from the second end of the drum body to the collecting portion in the second direction.   
     
     
         7 . The cleaner of  claim 1 , wherein
 the collecting portion is located at a center of the drum body along the longitudinal axis of the drum, and has a constant diameter.   
     
     
         8 . The cleaner of  claim 7 , wherein
 the drum body includes:
 a partition portion located at a longitudinal center of the drum body and protruding outwardly along a circumferential direction of the drum body, and 
   the partition portion divides the collecting portion into a first collecting portion and a second collecting portion.   
     
     
         9 . The cleaner of  claim 8 , wherein
 the first collecting portion and the second collecting portion are formed symmetrically with respect to the partition portion, and have a constant diameter.   
     
     
         10 . The cleaner of  claim 1 , wherein
 the brush member includes:
 a plurality of brush members, and 
   the plurality of brush members are spaced apart from each other along a circumferential direction of the drum body.   
     
     
         11 . The cleaner of  claim 10 , wherein
 the drum includes:   a rib protruding in a radial direction from the drum body along an outer circumferential surface of the drum body between respective brush members among the plurality of brush members.   
     
     
         12 . The cleaner of  claim 11 , wherein
 the rib is formed such that a height from the longitudinal axis of the drum to an end tip of the rib increases from the collecting portion to the first end the drum body, and from the collecting portion to the second end of the drum body.   
     
     
         13 . The cleaner of  claim 1 , wherein
 the brush member includes a bristle or a blade.   
     
     
         14 . The cleaner of  claim 13 , wherein
 the blade includes an elastic material.