Cap for a cup

Abstract

The cap of the present invention is adapted to cap a cup. The cap is formed with an opening, which has a first side and a second side. A pressing plate is extended from the first side toward the second side, and the pressing plate is swayable about the first side. The pressing plate has a distal end, from which a cutting rim is extended downward. The cutting rim is adapted to cut a film when the cap is in use and when the pressing plate is pressed downward. Thereby, the user can easily drink the contents in the cup via the opening.

What is claimed is: 
     
         1 . A cap for capping a cup, wherein the cap is formed with an opening, the opening has a first side and a second side, a pressing plate is extended from the first side toward the second side, the pressing plate is swayable about the first side, the pressing plate has a distal end, a cutting rim is extended downward from the distal end, the cutting rim is adapted to cut a film when the cap is in use and when the pressing plate is pressed downward. 
     
     
         2 . The cap of  claim 1 , wherein the opening further has two lateral opening sides connecting between the first side and the second side respectively, the pressing plate has two lateral plate sides. 
     
     
         3 . The cap of  claim 2 , wherein the cap has an engaging rim formed around its periphery to engage with the cup, the first side of the opening is close to a center of the cap, the second side of the opening is close to the engaging rim. 
     
     
         4 . The cap of  claim 2 , wherein the lateral opening sides partially connect to the lateral plate sides respectively in a disconnectable manner, the lateral plate sides disconnect from the lateral opening sides when the pressing plate is pressed downward. 
     
     
         5 . The cap of  claim 2 , wherein two blocking plates are extended from the two lateral opening sides toward each other respectively, a distance between the blocking plates is smaller than that between the lateral plate sides, the pressing plate is blocked by the blocking plates when the pressing plate is pressed downward to squeeze through the opening. 
     
     
         6 . The cap of  claim 1 , wherein the cap further comprises a sealing film sealing the opening, the cutting rim cuts the sealing film open when the pressing plate is pressed downward. 
     
     
         7 . The cap of  claim 5 , wherein the cap further comprises a sealing film sealing the opening, the cutting rim cuts the sealing film open when the pressing plate is pressed downward. 
     
     
         8 . The cap of  claim 1 , wherein the cutting rim is V-shaped. 
     
     
         9 . The cap of  claim 1 , wherein the cutting rim is saw-teeth-shaped. 
     
     
         10 . The cap of  claim 1 , wherein the cutting rim is trapezoid and has a slanted bottom side.