Reclosable tear-open lid

Abstract

The invention relates to a tear-off lid made of metal sheet which has a central lid plane and, within that, a breakout portion, as well as a grip tab made of metal sheet that can be swiveled about a swivel axis extending at least approximately perpendicular to the lid plane and that has an opener portion on one side of the swivel axis and a grip portion on the opposing side of the swivel axis. The grip portion is shaped such that, upon opening the breakout portion, it can be swiveled over an opening created thereby and enclosed by an outer contour and can tightly seal the opening. The metal sheet that forms the grip portion has apertures, and an elastomer seal is provided on a bottom side of the grip portion facing toward the lid plane that is connected in a form-fitting manner to the grip portion and extends through the apertures.

1 . A resealable tear-off lid made of metal sheet for beverage cans or the like, comprising a central lid plane within which a breakout portion is arranged, as well as a grip tab made of metal sheet that can be swiveled about a swivel axis extending at least approximately perpendicular to the lid plane and has an opener portion on one side of the swivel axis and a grip portion on the opposing side of the swivel axis, with the grip portion being shaped such that, upon opening the breakout portion it can be rotated over an opening produced in this manner and enclosed by an outer contour and can tightly seal the opening, characterized in that the metal sheet forming the grip portion has apertures and that an elastomer seal is provided on a bottom side of the grip portion facing toward the lid plane that is connected in a form-fitting manner to the grip portion and extends through the apertures. 
     
     
         2 . The tear-off lid as set forth in  claim 1 , wherein the apertures are arranged along a contour of the grip portion corresponding more or less to the outer contour of an opening to be produced by opening the breakout portion. 
     
     
         3 . The tear-off lid as set forth in  claim 2 , wherein at least 2 and no more than 12 apertures, and preferably between 4 and 8 apertures, are arranged along the contour. 
     
     
         4 . The tear-off lid as set forth in  claim 1 , wherein the apertures have a substantially circular shape and a diameter of 2 mm or less. 
     
     
         5 . The tear-off lid as set forth in  claim 1 , wherein the apertures are formed by slits that can be opened by the injection pressure of the injection-molding of the elastomer body. 
     
     
         6 . The tear-off lid as set forth in  claim 1 , the elastomer seal forms an unbroken surface on the bottom side of the grip portion that completely covers an opening to be produced by opening the breakout portion when the grip portion seals this opening. 
     
     
         7 . The tear-off lid as set forth in  claim 6 , wherein the elastomer seal has a sealing ridge along the outer contour of the opening to be produced by opening the breakout portion. 
     
     
         8 . The tear-off lid as set forth in  claim 1 , wherein the elastomer sear is part of an integrally formed elastomer body that extends both on the bottom side of the grip portion facing toward the lid plane and forming the elastomer seal there and on the top side of the grip portion facing away from the lid plane. 
     
     
         9 . The tear-off lid as set forth in  claim 8 , wherein the elastomer body extends beyond several of the apertures on the outer side of the grip portion. 
     
     
         10 . The tear-off lid as set forth in  claim 8 , wherein the elastomer body forms a symbol that is recognizable to the user on the outer side of the grip portion facing away from the lid plane. 
     
     
         11 . The tear-off lid as set forth in  claim 8 , wherein the elastomer body is produced by injection molding with a grip portion placed in an injection mold. 
     
     
         12 . The tear-off lid as set forth in  claim 1 , wherein the grip tab is connected in a swiveling and rotating manner to the lid plane by means of a rivet formed from the lid plane. 
     
     
         13 . The tear-off lid as set forth in  claim 1 , wherein the tear-off lid and the grip tab are manufactured from aluminum sheet. 
     
     
         14 . A beverage can comprising a can body and a tear-off lid as set forth in  claim 1 , wherein the tear-off lid is tightly connected to the can body over its entire periphery. 
     
     
         15 . A grip tab made of metal sheet for a tear-off lid as set forth in  claim 1 , wherein the grip tab has a grip portion that is designed to seal a drinking opening in a tear-off lid and has an elastomer seal that is part of an integrally formed elastomer body that extends through apertures of the grip portion and is consequently connected in a form-fitting manner to the grip portion. 
     
     
         16 . A method for manufacturing a grip tab as set forth in  claim 15 , wherein a finished sheet-metal part forming the grip tab is placed into an injection mold and a preferably thermoplastic elastomer is injected against the sheet-metal part such that an integrally formed elastomer body is formed that penetrates through apertures in the sheet-metal part.