Portioning device for packaging

Abstract

A packaging device ( 2 ) for a packaging ( 1 ) has a chamber ( 4 ) to accommodate a pourable solid product. This chamber ( 4 ) can be closed off by a feed device ( 2 ) neighboring onto this chamber ( 4 ) whereby, with the feed device in the open position, an outlet ( 14 ) can be formed at the lower end of the chamber ( 4 ). The feed device ( 2 ) exhibits two valve flaps ( 11, 12 ) which are joined together by means of at least one spring-type element ( 10 ) such that, when the spring-type element or elements ( 10 ) are in the closed position, closure edges ( 16 ) on the valve flaps ( 11, 12 ) keep the chamber ( 4 ) closed off from the surroundings. Consequently, by means of pressure ( 31, 32 ) applied to the valve flaps ( 11, 12 ), an outlet opening of variable size can be easily achieved and thus, in a simple manner, controlled feed of pourable solid products.

1 . A portioning device ( 2 ) for a packaging ( 1 ) with a chamber ( 4 ) to accommodate a pourable solid material, whereby the chamber ( 4 ) can be closed off by a feed mechanism ( 2 ) neighboring onto this chamber and whereby, with the feed mechanism ( 2 ) in the open position, at least an outlet ( 14 ) on the lower end of the chamber ( 4 ) can be formed, the feed device ( 2 ) exhibits two valve flaps ( 11 ,  12 ), which are joined together by means of at least one spring-type element ( 10 ) such that, when the spring-type element/elements is/are in the resting position, the closure edges ( 16 ) on the valve flaps ( 11 ,  12 ) keep the chamber ( 4 ) closed off from the surroundings.  
     
     
         2 . The device according to  claim 1 , wherein the chamber walls ( 4 ) are of flexible material which, advantageously, form a free-standing area ( 5 ) on both sides of the valve flaps ( 11 ,  12 ).  
     
     
         3 . The device according to  claim 2 , wherein the portioning device ( 2 ) is integrated within the regions delimited by the free-standing areas ( 5 ).  
     
     
         4 . The device according to  claim 3 , wherein the region above the lower side of the valve flaps ( 11 ,  12 ) project out and are joined together there to form an element ( 21 ) providing a guarantee against damage.  
     
     
         5 . The device according to  claim 4 , wherein the chamber walls are bonded to the valve flaps ( 11 ,  12 ) in areas ( 22 ) in order to close the chamber ( 4 ) with the feed device ( 2 ) neighboring on to them.  
     
     
         6 . The device according to  claim 5 , wherein the closure edges ( 16 ) are arranged on the side facing the surroundings.  
     
     
         7 . The device according to  claim 6 , wherein the two closure edges ( 16 ) have wiper elements and/or combs which on closure engage in each other.  
     
     
         8 . The device according to  claim 7 , wherein the spring-type elements ( 10 ) are compressive springs which rotate about their main axis.  
     
     
         9 . The device according to  claim 8 , wherein the closure edges ( 16 ) and/or edges ( 16 ′) of the valve flaps ( 11 ,  12 ) facing the valve flaps ( 11 ,  12 ) face each other such that they enclose a dosage volume ( 27 ) which can be removed on actuating the device.  
     
     
         10 . The device according to  claim 9 , wherein the device has an attachment facility, by means of which the device can be attached to a form of packaging.  
     
     
         11 . The device according to  claim 10 , wherein the chamber ( 4 ) of the packaging is deformable, the portioning device is provided at one end, of the packaging when in use, and at the other end with a facility ( 3 ) for hanging up the said packaging.  
     
     
         12 . The device according to  claim 3 , wherein the portioning device ( 2 ) is integrated within the regions delimited by the free-standing areas ( 5 ) such that the region between the free-standing areas ( 5 ) is covered by an element ( 41 ) providing a guarantee against damage.  
     
     
         13 . The device according to  claim 1 , wherein the region above the lower side of the valve flaps ( 11 ,  12 ) project out and are joined together there to form an element ( 21 ) providing a guarantee against damage.  
     
     
         14 . The device according to  claim 1 , wherein the chamber walls are bonded to the valve flaps ( 11 ,  12 ) in areas ( 22 ) in order to close the chamber ( 4 ) with the feed device ( 2 ) neighboring on to them.  
     
     
         15 . The device according to  claim 1 , wherein the closure edges ( 16 ) are arranged on the side facing the surroundings.  
     
     
         16 . The device according to  claim 1 , wherein the two closure edges ( 16 ) have wiper elements and/or combs which on closure engage in each other.  
     
     
         17 . The device according to  claim 1 , wherein the spring-type elements ( 10 ) are compressive springs which rotate about their main axis.  
     
     
         18 . The device according to  claim 1 , wherein the closure edges ( 16 ) and/or edges ( 16 )′) of the valve flaps ( 11 , 12 ) facing the valve flaps ( 11 , 12 ) face each other such that they enclose a dosage volume ( 27 ) which can be removed on actuating the device.  
     
     
         19 . The device according to  claim 1 , wherein the device has an attachment facility, by means of which the device can be attached to a form of packaging.  
     
     
         20 . A device with portioning device according to  claim 1 , wherein the chamber ( 4 ) of the packaging is deformable, the portioning device is provided at one end of the packaging when in use, and at the other end with a facility ( 3 ) for hanging up the said packaging.  
     
     
         21 . The device with portioning device according to  claim 20 , wherein the portioning device is provided at the lower end of the packaging when in use.  
     
     
         22 . The device with portioning device according to  claim 11 , wherein the portioning device is provided at the lower end of the packaging when in use.