Scrubber

Abstract

A scrubber includes: a drive assembly that includes a motor that rotates about a motor rotation axis extending in an up-and-down direction; a tool that faces a cleaning target and is rotated by the motor; a guard portion having at least a part disposed around the tool; and an attaching/detaching mechanism that includes a hook member and attaches and detaches the drive assembly and the guard portion to and from each other.

What is claimed is: 
     
         1 . A scrubber comprising:
 a drive assembly that includes a motor that rotates about a motor rotation axis extending in an up-down direction;   a tool that faces a cleaning target and is rotated by the motor;   a guard portion that is disposed at least partially around the tool; and   an attaching/detaching mechanism that includes a hook member and is configured to attach and detach the drive assembly and the guard portion to and from each other.   
     
     
         2 . The scrubber according to  claim 1 ,
 wherein the attaching/detaching mechanism is provided on one or both of the drive assembly and the guard portion.   
     
     
         3 . The scrubber according to  claim 2 ,
 wherein the hook member is movably supported by the drive assembly.   
     
     
         4 . The scrubber according to  claim 3 ,
 wherein the hook member includes: a first hook member;   and a second hook member that is connected to at least a part of the first hook member and moves in synchronization with the first hook member.   
     
     
         5 . The scrubber according to  claim 4 ,
 wherein the first hook member includes:   a main body portion disposed around a rotation shaft that connects the motor with the tool; and   a first hook portion that is disposed below a front portion of the main body portion and hooked on the guard portion.   
     
     
         6 . The scrubber according to  claim 5 ,
 wherein the first hook member includes an operation button portion that is provided on the front portion of the main body portion and that protrudes forward from a head housing of the drive assembly.   
     
     
         7 . The scrubber according to  claim 5 ,
 wherein the first hook member includes a connecting hole which is provided in a rear portion of the main body portion and into which at least a part of the second hook member is inserted.   
     
     
         8 . The scrubber according to  claim 7 ,
 wherein the second hook member includes: an insertion portion that is inserted into the connecting hole; and a second hook portion that is disposed below the insertion portion and that is hooked on the guard portion.   
     
     
         9 . The scrubber according to  claim 8 ,
 wherein the second hook member includes a pivoting portion disposed between the insertion portion and the second hook portion in the up-down direction.   
     
     
         10 . The scrubber according to  claim 9 ,
 Wherein, when viewed from above, an extension line of a pivot axis of the pivoting portion passes an upper surface of the second hook portion.   
     
     
         11 . The scrubber according to  claim 4 ,
 wherein the drive assembly includes a hook cover to be inserted into an opening provided in the guard portion, and   the hook cover supports the first hook member and the second hook member.   
     
     
         12 . The scrubber according to  claim 11 ,
 wherein the hook cover includes: a cylindrical portion to be inserted into the opening; and a slide portion that is provided on an outer surface of the cylindrical portion and guided by a guide portion provided on the guard portion.   
     
     
         13 . The scrubber according to  claim 12 ,
 wherein the cylindrical portion include: a first hook hole in which a first hook portion of the first hook member is movably disposed; and a second hook hole in which a second hook portion of the second hook member is movably disposed.   
     
     
         14 . The scrubber according to  claim 3 ,
 wherein the attaching/detaching mechanism includes a biasing member that biases the hook member such that the hook member approaches the guard portion.   
     
     
         15 . The scrubber according to  claim 14 ,
 wherein the hook member includes: a first hook member;   and a second hook member that is connected to at least a part of the first hook member and that moves in synchronization with the first hook member,   the biasing member is disposed between the first hook member and at least a part of a hook cover that supports the first hook member to be movable,   the biasing member biases the first hook member such that the first hook member approaches the guard portion; and   the biasing member biases the second hook member via the first hook member such that the second hook member approaches the guard portion.   
     
     
         16 . The scrubber according to  claim 15 ,
 wherein the drive assembly includes a hook cover to be inserted into an opening provided in the guard portion,   the hook cover supports the hook member to be movable,   when the biasing member biases the first hook member and the second hook member with the hook cover being inserted into the opening, an engaged state is established in which a first hook portion of the first hook member and a second hook portion of the second hook member are hooked on the guard portion, and   when an operation button portion provided on the first hook member is operated against biasing force of the biasing member, a released state is established in which the first hook portion and the second hook portion are separated from the guard portion.