Nozzle and cleaner

Abstract

A nozzle includes: a main body having a lower surface that faces a cleaning target surface; a groove provided on the lower surface and recessed upward from the lower surface; and a suction port provided inside the groove and facing the cleaning target surface. The groove includes: a first groove; and a second groove at least a part of which is provided in the rear of the first groove. A depth H 1 of the first groove is deeper than a depth H 2 of the second groove.

What is claimed is: 
     
         1 . A nozzle comprising:
 a main body having a lower surface that faces a cleaning target surface;   a groove provided in the lower surface to be recessed upward from the lower surface; and   a suction port provided inside the groove to face the cleaning target surface,   wherein the groove includes:
 a first groove; and 
 a second groove, at least a part of which is provided rearward of the first groove, and 
   a depth H 1  of the first groove is deeper than a depth H 2  of the second groove.   
     
     
         2 . The nozzle according to  claim 1 ,
 wherein a center of the groove and a center of the main body coincide with each other in a left-right direction.   
     
     
         3 . The nozzle according to  claim 2 ,
 wherein a center of the first groove and a center of the second groove coincide with each other in the left-right direction.   
     
     
         4 . The nozzle according to  claim 3 ,
 wherein a dimension B 1  of the first groove in the left-right direction and a dimension B 2  of the second groove in the left-right direction satisfy a condition:
     B 1< B 2. 
   
     
     
         5 . The nozzle according to  claim 3 ,
 wherein a center of the suction port and a center of the groove coincide with each other in the left-right direction.   
     
     
         6 . The nozzle according to  claim 5 ,
 wherein a front end of the suction port and a front end of the first groove coincide with each other, and   a rear end of the suction port and a front end of the second groove coincide with each other.   
     
     
         7 . The nozzle according to  claim 2 ,
 wherein a center of the first groove and the center of the main body coincide with each other in the left-right direction, and   a dimension B 1  of the first groove in the left-right direction and a dimension Bt of the main body in the left-right direction satisfy a condition:
     B 1≥0.5× Bt.  
 
   
     
     
         8 . The nozzle according to  claim 1 ,
 wherein a first width W 1  indicating a dimension of the first groove in a front-rear direction and the depth H 2  satisfy a condition:
     W 1≥ H 2.
 
   
     
     
         9 . The nozzle according to  claim 8 ,
 wherein the first width W 1  indicating the dimension of the first groove in the front-rear direction and a total width Wt indicating a sum of the dimension of the first groove and the dimension of the second groove in the front-rear direction satisfy a condition:
     W 1≤0.9× Wt.  
 
   
     
     
         10 . The nozzle according to  claim 1 ,
 wherein a depth H 3  indicating a difference between the depth H 1  and the depth H 2  satisfies a condition:
     H 3≥1.5 mm.
 
   
     
     
         11 . The nozzle according to  claim 1 ,
 wherein an inner surface of the first groove includes: a first rear surface connected to a front end of the second groove and facing forward; a first front surface disposed forward of the first rear surface and facing the first rear surface; and a first lower surface connecting an upper end of the first rear surface to an upper end of the first front surface,   the nozzle includes a vertical rib extending in the up-down direction, at least a part of which is provided on the first front surface, and   the vertical rib is disposed in plurality at intervals in the left-right direction.   
     
     
         12 . The nozzle according to  claim 11 ,
 wherein, among the vertical ribs disposed in the left-right direction, the vertical rib disposed on a leftmost side is disposed leftward of a left end of the suction port, and the vertical rib disposed on a rightmost side is disposed rightward of a right end of the suction port.   
     
     
         13 . The nozzle according to  claim 11 ,
 wherein a height T 1  indicating a protrusion amount of the vertical rib from the first front surface satisfies a condition:
     T 1≥1.5 mm.
 
   
     
     
         14 . The nozzle according to  claim 11 ,
 wherein a thickness D 1  indicating a dimension of the vertical rib in the left-right direction satisfies a condition:
     D 1≤3.0 mm.
 
   
     
     
         15 . The nozzle according to  claim 11 ,
 wherein an interval G 1  between a pair of the vertical ribs adjacent to each other in the left-right direction satisfies a condition:
     G 1≤4.0 mm.
 
   
     
     
         16 . The nozzle according to  claim 11 ,
 wherein an inner surface of the second groove includes: a second lower surface connected to a lower end of the first rear surface; and a second rear surface connected to a rear end of the second lower surface and facing forward,   the main body includes: a left side surface disposed at a boundary between the second lower surface disposed leftward of the suction port and a left end of the suction port; and a right side surface disposed at a boundary between the second lower surface disposed rightward of the suction port and a right end of the suction port,   the nozzle includes a lateral rib provided on each of the left side surface and the right side surface and extending in the up-down direction, and   the lateral rib is disposed in plurality at intervals in the front-rear direction.   
     
     
         17 . The nozzle according to  claim 4 ,
 wherein a center of the suction port and a center of the groove coincide with each other in the left-right direction.   
     
     
         18 . The nozzle according to  claim 17 ,
 wherein a front end of the suction port and a front end of the first groove coincide with each other, and   a rear end of the suction port and a front end of the second groove coincide with each other.   
     
     
         19 . A cleaner comprising:
 the nozzle according to  claim 1 ;   a motor; and   a fan that is rotated by the motor and generates a suction force at the suction port of the nozzle.