Air discharge structure for a vacuum cleaner

Abstract

An air discharge structure for a vacuum cleaner comprises an exhaust grill through which air is exhausted from a vacuum motor chamber mounted in a vacuum cleaner body; an exhaust grill cover formed in a position corresponding to cover the exhaust grill, and to close the exhaust grill when the vacuum cleaner is not in operation, and to open the exhaust grill as a result of the force generated by back pressure of the exhaust air discharged from the exhaust grill when the vacuum cleaner is in operation; and a resilient member formed in a seating hole which is located in proximity of the exhaust grill, to return the exhaust grill cover to the closed position when the vacuum cleaner stops operation.

1 . An air discharge structure for a vacuum cleaner, comprising: 
 an exhaust grill through which exhaust air is discharged from a vacuum motor chamber mounted in a vacuum cleaner body;    an exhaust grill cover disposed in a position corresponding to the exhaust grill so as to close the exhaust grill when the vacuum cleaner is not in operation, the exhaust grill being able to open to provide for air flow using a back pressure of the exhaust air discharged from the exhaust grill when the vacuum cleaner is in operation; and    a resilient member disposed in a seating hole which is located in proximity of the exhaust grill, the resilient member being arranged and configured to return the exhaust grill cover to the closed position when the vacuum cleaner stops operation.    
   
   
       2 . The air discharge structure of  claim 1 , wherein the exhaust grill cover is openable and closable about a hinge connection to the vacuum cleaner body.  
   
   
       3 . The air discharge structure of  claim 1 , wherein the exhaust grill cover comprises open spaces which are defined by a plurality of ribs on the surface facing the exhaust grill.  
   
   
       4 . The air discharge structure of  claim 1 , wherein the exhaust grill cover further comprises an air blocking plate for directing exhaust air discharged from the exhaust grill toward both sides of the exhaust grill cover.  
   
   
       5 . The air discharge structure of  claim 1 , wherein the resilient member comprises a plate spring which is bent at a predetermined position to permit insertion into the corresponding seating hole.  
   
   
       6 . The air discharge structure of  claim 5 , wherein the resilient member comprises: 
 a resilient lever for contacting the exhaust grill cover; and    a separation preventing protrusion for preventing the resilient member from withdrawing from the vacuum cleaner body.    
   
   
       7 . The air discharge structure of  claim 6 , wherein the separation preventing protrusion comprises first and second separation preventing protrusions, each of the first and the second separation preventing protrusions being integrally formed with the resilient member body, and having a portion protruding outwardly therefrom.  
   
   
       8 . The air discharge structure of  claim 7 , wherein the first and the second separation preventing protrusions extend in opposite directions to prevent separation of the resilient member from the vacuum cleaner body.