Extension tube for vacuum cleaner and vacuum cleaner unit

Abstract

An extension pipe ( 30 ) is configured to allow a suction tool ( 70 ) to be connected to one end side in a pipe axis direction and a vacuum cleaner main body ( 10 ) to be connected to another end. The extension pipe ( 30 ) includes a power-receiving portion ( 36 ) configured to receive and supply electric power to be fed to a battery ( 17 a ) provided to the vacuum cleaner main body ( 10 ).

1 . An extension pipe for an electric vacuum cleaner, the extension pipe being configured to allow a suction tool having a suction port for sucking dust to be connected to one end side in a pipe axis direction and a vacuum cleaner main body to be connected to another end side in the pipe axis direction, the extension pipe comprising:
 a power-receiving portion configured to receive and supply electric power to be fed to a battery provided to the vacuum cleaner main body, wherein the power-receiving portion includes:   a first current conducting portion to be connected to the vacuum cleaner main body on the another end side in the pipe axis direction;   a second current conducting portion provided closer to the one end side in the pipe axis direction than the first current conducting portion; and   a power-receiving line configured to electrically connect the first current conducting portion and the second current conducting portion.   
     
     
         2 . The extension pipe for an electric vacuum cleaner according to  claim 1 , further comprising:
 a pipe portion configured to define an air passage; and   a cover portion configured to define, in cooperation with the pipe portion, a space for arrangement of the power-receiving line.   
     
     
         3 . The extension pipe for an electric vacuum cleaner according to  claim 2 , further comprising communicating portions that communicate with each other in a direction that intersects with the pipe axis direction in the pipe portion, in the cover portion, or between the pipe portion and the cover portion,
 wherein the power-receiving line is routed through the communicating portions to electrically connect the first current conducting portion and the second current conducting portion.   
     
     
         4 . An electric vacuum cleaner unit, comprising:
 a vacuum cleaner main body including a battery;   a suction tool having a suction port for sucking dust;   the extension pipe of  claim 1 ; and   a charging stand including a third current conducting portion and a charging mechanism configured to charge the battery,   wherein the charging stand includes:   a placement portion configured to allow the suction tool to be placed thereon; and   a support column portion that is configured to support the extension pipe and is to be engaged with the extension pipe,   wherein, under a state in which the support column portion supports the extension pipe and is engaged with the extension pipe, the third current conducting portion and the second current conducting portion are electrically connected to cause the charging mechanism to feed electric power from the third current conducting portion to the second current conducting portion so as to charge the battery.   
     
     
         5 . The electric vacuum cleaner unit according to  claim 4 , further comprising an arrangement portion configured to allow the second current conducting portion to be arranged therein,
 wherein the arrangement portion forms an engagement structure to be engaged with the support column portion.   
     
     
         6 . The electric vacuum cleaner unit according to  claim 5 , wherein the arrangement portion includes a receiving portion having a hollow shape with a first opening portion directed toward one side in the pipe axis direction, and
 wherein the support column portion has a protruding portion to be inserted into the receiving portion through the first opening portion.   
     
     
         7 . The electric vacuum cleaner unit according to  claim 6 , wherein the third current conducting portion is provided to the protruding portion. 
     
     
         8 . The electric vacuum cleaner unit according to  claim 7 ,
 wherein the receiving portion has a second opening portion on a side opposed to the support column portion, and   wherein the third current conducting portion is connected to the second current conducting portion through the second opening portion.