Pen with cutting function

Abstract

A pen with cutting function includes a main body having a writing tip provided at an end thereof, and a cap fitted around the writing tip. The cap has a closed and an open end, a wall portion extended between the closed and the open end, at least one first projected portion axially extended from the wall portion to project beyond the closed end of the cap, and at least one cutting section provided at the closed end in the vicinity of the first projected portion. When the pen is so positioned with the first projected portion bearing against an article to be cut open, the cutting section at the closed end of the cap is adapted to slide along the article and smoothly cut open wrapping of the article.

1 . A pen with cutting function, comprising a cap having a closed end, an opposite open end, a wall portion extended between said closed and said open end, at least one first projected portion axially extended from said wall portion to project beyond said closed end by a predetermined distance, and at least one cutting section provided at said closed end to project therefrom; whereby said cutting section is adapted to cut open an article without the risk of easily skidding off said article.  
   
   
       2 . The pen with cutting function as claimed in  claim 1 , wherein said cutting section is projected from said closed end of said cap by a distance smaller than a distance by which said at least one first projected portion is projected beyond said closed end of said cap.  
   
   
       3 . The pen with cutting function as claimed in  claim 1 , wherein said cutting section includes a cutting edge.  
   
   
       4 . The pen with cutting function as claimed in  claim 1 , wherein said wall portion of said cap is provided with a second projected portion opposite to said at least one first projected portion.  
   
   
       5 . The pen with cutting function as claimed in  claim 1 , wherein said closed end of said cap is configured into a guide surface.  
   
   
       6 . The pen with cutting function as claimed in  claim 5 , wherein said guide surface is a smoothly curved surface.  
   
   
       7 . The pen with cutting function as claimed in  claim 1 , further comprising a main body having two opposite ends, and wherein said cap is fitted around one of said two opposite ends of said main body.  
   
   
       8 . A pen with cutting function, comprising a main body having a closed first end, a second end opposite to said first end, a body portion extended between said first and said second end, at least one first projected portion axially extended from said body portion to project beyond said closed first end, and at least one cutting section provided at said closed first end to project therefrom by a predetermined distance; whereby said cutting section is adapted to cut open an article without the risk of easily skidding off said article.  
   
   
       9 . The pen with cutting function as claimed in  claim 8 , wherein said cutting section is projected from said closed first end of said main body by a distance smaller than a distance by which said at least one first projected portion is projected beyond said closed first end of said main body.  
   
   
       10 . The pen with cutting function as claimed in  claim 8 , wherein said cutting section includes a cutting edge.  
   
   
       11 . The pen with cutting function as claimed in  claim 8 , wherein said body portion of said main body is provided with a second projected portion opposite to said at least one first projected portion.  
   
   
       12 . The pen with cutting function as claimed in  claim 8 , wherein said closed first end of said main body is configured into a guide surface.  
   
   
       13 . The pen with cutting function as claimed in  claim 12 , wherein said guide surface is a smoothly curved surface.  
   
   
       14 . The pen with cutting function as claimed in  claim 8 , further comprising a hollow cap having an open end, at where said cap is fitted around a writing tip provided at said second end of said main body.