Bag for vacuum sealing with a suction nozzle, suction nozzle and bag for vacuum sealing

Abstract

A bag for vacuum sealing from which air is sucked up by a suction nozzle which is connected to a suction pipe or a suction horse of a vacuum cleaner. This bag has a small bag for air suction, and the suction nozzle is inserted in this small bag. The small bag is made of two resin films and is opened and closed by a zipper composed of a protrusion and a groove. The suction nozzle has a rear connecting portion with a check valve inside and a front portion with a suction hole, and the rear portion is to be connected to a vacuum cleaner. The rear connecting portion stands upward. The front portion is spatular and has a suction hole which opens downward. The outer circumference of the front portion where the suction hole is provided is almost equal to the inner circumference of the portion of the small bag where the suction nozzle is inserted.

What is claimed is:  
     
         1 . A bag for vacuum sealing provided with a suction nozzle, comprising: 
 a bag comprising: 
 a bag body which is made of a first resin film with a hole in a part; and  
 a small bag for air suction which is made of a second resin film, which is fused with an inner surface of the first resin film of the bag body at the position where the hole is made in the first resin film, which has a connecting portion for connecting the hole to an interior of the bag body and which has a zipper comprising a protrusion and a groove; and  
   a suction nozzle comprising: 
 a rear portion which is to be connected to a vacuum sucking device; and  
 a front portion which has a suction hole and which can be inserted in the small bag for air suction;  
 wherein a backward flow preventive is provided in the suction nozzle, the backward flow preventive permitting an air flow from the suction hole to the rear portion while preventing an air flow from the rear portion to the suction hole.  
   
     
     
         2 . A bag for vacuum sealing provided with a suction nozzle according to  claim 1 , wherein on the small bag for air suction, an indication which indicates a position and a direction where the suction nozzle is inserted is printed.  
     
     
         3 . A bag for vacuum sealing provided with a suction nozzle according to  claim 1 , wherein an outer circumference of the front portion of the suction nozzle where the suction hole is made is almost equal to an inner circumference of a portion with a minimum width of the small bag for air suction.  
     
     
         4 . A bag for vacuum sealing provided with a suction nozzle according to  claim 1 , wherein the front portion of the suction nozzle where the suction hole is made is spatular so as to flatten the small bag for air suction.  
     
     
         5 . A bag for vacuum sealing provided with a suction nozzle according to  claim 1 , wherein the rear portion of the suction nozzle is to be connected to a vacuum cleaner.  
     
     
         6 . A bag for vacuum sealing, comprising: 
 a bag body which is made of a first resin film with a hole in a part; and    a small bag for air suction which is made of a second resin film, which is fused with an inner surface of the first resin film of the bag body at the position where the hole is made in the first resin film, which has a connecting portion for connecting the hole to an interior of the bag body and which has a zipper comprising a protrusion and a groove.    
     
     
         7 . A bag for vacuum sealing according to  claim 6 , wherein the hole of the bag body is made by making a slit in the first resin film to form a door.  
     
     
         8 . A bag for vacuum sealing according to  claim 7 , wherein: 
 the small bag for air suction has a door which is formed by making a slit in the second resin film; and    the door of the small bag is fused with the door of the bag body.    
     
     
         9 . A bag for vacuum sealing according to  claim 6 , wherein the connecting portion of the small bag for air suction is formed by carrying out a fusion preventing treatment toward the second resin film.  
     
     
         10 . A suction nozzle which is to be inserted in a small bag for air suction provided in a bag for vacuum sealing while being connected to a vacuum sucking device so as to suck air from the bag for vacuum sealing, said suction nozzle comprising: 
 a rear portion which is to be connected to a vacuum suction device; and    a front portion which has a suction hole and which can be inserted in the small bag for air suction,    wherein a backward flow preventive is provided in the suction nozzle, the backward flow preventive permitting an air flow from the suction hole to the rear portion while preventing an air flow from the rear portion to the suction hole.    
     
     
         11 . A suction nozzle according to  claim 10 , wherein the rear portion stands upward at an angle of not less than 20 degrees.  
     
     
         12 . A suction nozzle according to  claim 10 , wherein a flange is provided so as to wholly cover an outer circumference of the rear portion.  
     
     
         13 . A suction nozzle according to  claim 10 , wherein an outer circumference of the front portion where the suction hole is made is almost equal to an inner circumference of a portion with a minimum width of the small bag for air suction.  
     
     
         14 . A suction nozzle according to  claim 10 , wherein the front portion where the suction hole is made is spatular.  
     
     
         15 . A suction nozzle according to  claim 10 , wherein the rear portion is to be connected to a vacuum cleaner.