Deaeration Valve for Compression Bag and Compression Bag with Deaeration Valve

Abstract

A dearation valve 1 for a compression bag comprising a main member 2 and a valve element wherein the main member is provided with a mounting plate 21 that comes into contact with the inner surface of a bag sheet B 1 . A valve mechanism 22 provided in the mounting plate 21 has a valve element support 23 and a deaeration hole 24 is provided in the valve element support 23 . The valve element 3 is set by the engagement of a valve element side interlocking part 32 provided in the center of the valve element 3 with a main member side interlocking part 23 b provided in the center of the valve element support 23 . Since the interlocking parts engage with each other such that the valve element side interlocking part 32 can move in the longitudinal direction in relation to the valve seat side interlocking part 23 b , the deaeration hole 24 can be closed off when the valve element 3 contacts the valve element support 23 . When the valve element 3 is suctioned towards the front side, the valve element side interlocking part 32 moves towards the front side in relation to the valve seat side interlocking part 23 b and a diaphragm 31 bends towards the front side, whereby the dearation hole 24 is opened.

1 . A deaeration valve ( 1 ) for a compression bag, comprising: 
 a main member ( 2 ) provided with a deaeration hole ( 24 ) that extends from the front side through to the reverse side; and    a valve element ( 3 ) disposed on the main member ( 2 ) so that the deaeration hole ( 24 ) can be closed off,    wherein the main member ( 2 ) comprises a flat mounting plate ( 21 ) that comes into contact with the inner surface of a bag sheet (B 1 ) that constitutes the compression bag, said mounting plate ( 21 ) comprising a valve mechanism ( 22 ) for disposing the valve element ( 3 ), the valve mechanism ( 22 ) being provided with a valve element support ( 23 ) that has a contact surface ( 23   a ) capable of coming into close contact with the valve element ( 3 ) and said deaeration hole ( 24 ); and    the valve element ( 3 ) is supported in the center of the valve element support ( 23 ) that has a diaphragm ( 31 ) as a portion thereof, the diaphragm ( 31 ) facing the deaeration hole ( 24 ) and at least being configured from a soft material, said valve element ( 3 ) being supported on the valve element support ( 23 ) by the engagement of a valve element side interlocking part ( 32 ) provided in the center of the valve element ( 3 ) and a main member side interlocking part ( 23   b ) provided in the center of the valve element support ( 23 ), the engagement allowing the valve element side interlocking part ( 32 ) to move in the longitudinal direction in relation to the valve seat side interlocking part ( 23   b );    the valve element ( 3 ) is thereby made capable of moving in relation to the contact surface ( 23   a ) of the valve element support ( 23 ), wherein the deaeration hole ( 24 ) can be closed off when the valve element ( 3 ) comes into close contact with the valve element support ( 23 ); and    when the valve element ( 3 ) is suctioned towards the front side by a vacuum source like a vacuum cleaner, the valve element side interlocking part ( 32 ) moves towards the front side in relation to the valve seat side interlocking part ( 23   b ) while the diaphragm ( 31 ) bends towards the front side, whereby the deaeration hole ( 24 ) is opened.    
   
   
       2 . The deaeration valve for a compression bag according to  claim 1 , wherein the valve mechanism ( 22 ) has a cylindrical shape that passes through the mounting plate ( 21 ), on the back end of the valve mechanism being disposed the valve element support ( 23 ) while the front end of the valve mechanism is open, wherein a cap ( 4 ) for closing this opening can be mounted on the edge ( 26   a ) of the open-side end, 
 wherein a pressure projection ( 23   c ) is formed as part of the contact surface ( 23   a ) of the valve element support ( 23 ), the pressure projection protruding in a ring shape so as to encircle the deaeration hole ( 24 ); and    the cap ( 4 ) is provided with a ring-shaped pressure part ( 41 ) that can push the valve element ( 3 ) against the pressure projection ( 23   c ) with the cap being mounted on the edge ( 26   a ).    
   
   
       3 . The deaeration valve for a compression bag according to  claim 1 , further comprising a presser plate ( 5 ) disposed facing the mounting plate ( 21 ) across the interposed bag sheet (B 1 ), wherein the presser plate ( 5 ) is provided with a through-hole ( 51 ) through which air from the valve mechanism ( 22 ) can flow, and a convexity ( 52 ) formed in the front surface thereof for maintaining a gap between the tip of the nozzle (N) of a vacuum source and the presser plate ( 5 ) when the tip of the nozzle is brought into contact with the presser plate ( 5 ).  
   
   
       4 . The deaeration valve for a compression bag according to  claim 1 , wherein the mounting plate ( 21 ) comprises baffle plates ( 25 ) that stand up towards the reverse side and extend in a radial pattern about the center of the mounting plate ( 21 ), the baffle plates being curved in one direction with increased distance from said center.  
   
   
       5 . A compression bag wherein a space is formed inside thereof in an airtight manner by partially adhering overlaid bag sheets (B 1 ) made of a soft resin, and the deaeration valve ( 1 ) for a compression bag according to  claim 1  is mounted on the bag sheet (B 1 ), whereby the air inside the space of the bag can be removed through the valve mechanism ( 22 ) of the deaeration valve, and a deaerated state can be maintained.  
   
   
       6 . The deaeration valve for a compression bag according to  claim 2 , further comprising a presser plate ( 5 ) disposed facing the mounting plate ( 21 ) across the interposed bag sheet (B 1 ), wherein the presser plate ( 5 ) is provided with a through-hole ( 51 ) through which air from the valve mechanism ( 22 ) can flow, and a convexity ( 52 ) formed in the front surface thereof for maintaining a gap between the tip of the nozzle (N) of a vacuum source and the presser plate ( 5 ) when the tip of the nozzle is brought into contact with the presser plate ( 5 ).  
   
   
       7 . The deaeration valve for a compression bag according to  claim 2 , wherein the mounting plate ( 21 ) comprises baffle plates ( 25 ) that stand up towards the reverse side and extend in a radial pattern about the center of the mounting plate ( 21 ), the baffle plates being curved in one direction with increased distance from said center.  
   
   
       8 . The deaeration valve for a compression bag according to  claim 3 , wherein the mounting plate ( 21 ) comprises baffle plates ( 25 ) that stand up towards the reverse side and extend in a radial pattern about the center of the mounting plate ( 21 ), the baffle plates being curved in one direction with increased distance from said center.  
   
   
       9 . A compression bag wherein a space is formed inside thereof in an airtight manner by partially adhering overlaid bag sheets (B 1 ) made of a soft resin, and the deaeration valve ( 1 ) for a compression bag according to  claim 2  is mounted on the bag sheet (B 11 ), whereby the air inside the space of the bag can be removed through the valve mechanism ( 22 ) of the deaeration valve, and a deaerated state can be maintained.  
   
   
       10 . A compression bag wherein a space is formed inside thereof in an airtight manner by partially adhering overlaid bag sheets (B 1 ) made of a soft resin, and the deaeration valve ( 1 ) for a compression bag according to  claim 3  is mounted on the bag sheet (B 1 ), whereby the air inside the space of the bag can be removed through the valve mechanism ( 22 ) of the dearation valve, and a deaerated state can be maintained.  
   
   
       11 . A compression bag wherein a space is formed inside thereof in an airtight manner by partially adhering overlaid bag sheet (B 1 ) made of a soft resin, and the deaeration valve ( 1 ) for a compression bag according to  claim 4  is mounted on the bag sheet (B 1 ), whereby the air inside the space of the bag can be removed through the valve mechanism ( 22 ) of the deaeration valve, and a deaerated state can be maintained.