Handheld vacuum device

Abstract

A handheld vacuum device includes a blower configured to suck air; an air intake duct configured to allow the blower to suck air therethrough, thereby capturing rubbish on a floor surface, from an open edge thereof; wheels configured to be rotated in a first direction in conjunction with a forward movement of the air intake duct and to be rotated in a second direction which is a direction opposite to the first direction, in conjunction with a backward movement of the air intake duct; a brush body provided on a rearward side of the open edge of the air intake duct, and configured to be rotated so as to sweep rubbish on the floor surface; and a rotation mechanism configured to rotate the brush body based on the rotation of the wheels. The rotation mechanism is configured to rotate the brush body in the second direction when the wheels are rotated in the first direction.

1 . A handheld vacuum device for vacuuming and cleaning away rubbish on a floor surface, comprising:
 a blower configured to suck air;   an air intake duct formed into a tube shape extending in a given direction with an open edge thereof facing the floor surface, and configured to allow the blower to suck air therethrough, thereby capturing rubbish on the floor surface, from the open edge;   at least one wheel supporting the air intake duct in contact with the floor surface, the wheel being configured to be rotated in a first direction in conjunction with a forward movement of the air intake duct and to be rotated in a second direction which is a direction opposite to the first direction, in conjunction with a backward movement of the air intake duct;   a cleaning body provided on a rearward side of the open edge of the air intake duct, and configured to be rotated so as to sweep rubbish on the floor surface; and   a rotation mechanism configured to rotate the cleaning body based on a rotation of the wheel, wherein the rotation mechanism is configured to rotate the cleaning body in the second direction when the wheel is rotated in the first direction.   
     
     
         2 . The handheld vacuum device according to  claim 1 , wherein the rotation mechanism is configured to rotate the cleaning body in the first direction when the wheel is rotated in the second direction. 
     
     
         3 . The handheld vacuum device according to  claim 1  or  2 , wherein the open edge of the air intake duct has an inwardly-concaved notch formed in a rear end thereof, and at least part of the cleaning body is disposed in the inwardly-concaved notch. 
     
     
         4 . The handheld vacuum device according to  claim 1 , wherein the air intake duct is configured to be swung about a first shaft so as to enable a distance between a front end of the open edge and the floor surface to be changed, and wherein each of the wheel and the cleaning body is configured to be rotated about the first shaft. 
     
     
         5 . The handheld vacuum device according to  claim 1 , wherein the air intake duct is configured to be swung about a first shaft so as to enable a distance between a front end of the open edge and the floor surface to be changed, and wherein the wheel is configured to be rotated about the first shaft, and the cleaning body is configured to be rotated about a second shaft spaced apart from the first shaft in the given direction. 
     
     
         6 . The handheld vacuum device according to  claim 4 , wherein the wheel is composed of a single wheel, and wherein the cleaning body comprises a first cleaning body disposed on one side of the single wheel, and a second cleaning body disposed on the other side of the single wheel. 
     
     
         7 . The handheld vacuum device according to  claim 4 , wherein the wheel comprises an elastic portion which is stretchable and compressible in response to an external force, the elastic portion being stretchable and compressible in a radial direction of the wheel. 
     
     
         8 . The handheld vacuum device according to  claim 1 , wherein the air intake duct comprises a duct body, and an extension duct provided to the duct body in an attachable and detachable manner, and wherein the cleaning body is fixed to the extension duct.