Container cap having blade protector

Abstract

The present invention relates to a container cap having a blade protector which comprises a lower cap having a storage tube accommodated in a container, and an upper cap screw-coupled to the top of the lower cap, wherein a cutting blade for cutting a cut groove on the rim of an opening plate at the bottom of the storage tube and a blade protector for protecting the cutting blade are provided at the bottom of an inner cylinder which extends downward from the center of the bottom surface of the upper cap. When the upper cap is separated, the blade protector functions as a blade protector to protect a user from the blade, and when the blade is working, the blade protector pushes down on the bottom of the opening plate, which enables the blade to easily cut the cut groove.

1 . A container cap having a blade protector, comprising:
 a fixing member  100  which includes:
 a lower cap  110  engaged to an opening of a container; 
 a storage tube  130  extending downward from the center of the bottom of the lower cap  110  and configured to store an additive in it; and 
 an opening plate  132  with an engaging groove  135  formed at part of the bottom of the storage tube  130  for the purpose of concurrently accommodating a cutting blade  22  and a blade protector  310 ; and 
   an operation member  300  which includes:
 an upper cap  300   b  screw-engaged to the threads  128  of the top of an extension tube  131  of the top of the storage tube  130 ; 
 an inner cylinder  78  which is extending downward from the center of the bottom of the upper cap  300   b;    
 a cutting blade  22  which is protruded from the lower side of the inner cylinder  78 ; and 
 a band-shaped blade protector  310  which is protruded in a coaxial direction from the inner cylinder  78  for the purpose of protecting the blades of the cutting blade  22 , 
   wherein the cutting blade  22  and the blade protector  310  are configured to be concurrently accommodated in the engaging groove  135 , and the cutting blade  22  starts cutting the cutting groove  133  while the blade protector is pressing the rim bottom of the opening plate  132  of the storage tube  130  when the upper cap rotates and is loosened.   
     
     
         2 . A container cap having a blade protector according to  claim 1 , wherein the lower sides of the cutting blade  22  and the blade protector  310  define a bridge groove  312  with certain width and height, and a guide dam  134 , which is uniformly protruded upward, is formed from the start point to the end point of the engaging groove  135 , and the guide dam  134  is configured to help guide the movement of the bridge groove  312 . 
     
     
         3 . A container cap having a blade protector according to  claim 2 , wherein at the end portion of the guide dam  134  is provided a protrusion  136  which is pressed by the bridge groove  312  in order for the opening plate  132  to fast open downward. 
     
     
         4 . A container cap having a blade protector according to  claim 2 , wherein the width of the blade protector  310  is wider than the width of the cutting blade  22  and is positioned closer to the front side rather than the blades in the loosening direction of the upper cap  300   b.    
     
     
         5 . A container cap having a blade protector according to  claim 2 , wherein at the engaging groove  135  and the opening plate  132  is formed a pressing slope surface  135   e  which obliquely connects the engaging grooves  135  and the opening plate  132  and provides an initial pressing force of the blade protector  310 . 
     
     
         6 . A container cap having a blade protector, comprising:
 a fixing member  100  which includes:
 a lower cap  110  which is engaged to an outer surface of an opening  12  of a container via an engaging shoulder  115  engaged to a surface of the opening  12  of the container; 
 a storage tube  130  which is extending downward from an inner surface of the engaging shoulder  115  and is configured to store an additive in it and snug-fits an inner wall of the container; and 
 an opening plate  132  which has an engaging groove  135  formed at part of the bottom of the storage tube  130  and configured to concurrently accommodate a cutting blade  22  and a blade protector  310 ; and 
   an operation member  300  which includes:
 an upper cap  300   b  which is screw-engaged with a container thread  14  of an opening of the container  10 ; 
 an inner cylinder  78  which is extending downward from the center of the bottom of the upper cap  300   b;    
 a cutting blade  22  which is protruded from a lower side of the inner cylinder  78 ; and 
 a band-shaped blade protector  310  which is protruded in a coaxial direction from the inner cylinder  78  for the purpose of protecting the blades of the cutting blade  22 , 
   wherein the cutting blade  22  and the blade protector  310  are configured to be concurrently accommodated in the engaging groove  135 , and the cutting blade  22  starts cutting the cutting groove  133  while the blade protector is pressing the rim bottom of the opening plate  132  of the storage tube  130  when the upper cap rotates and is loosened.   
     
     
         7 . A container cap having a blade protector according to  claim 6 , further comprising:
 a one-directional engaging protrusion  15  for preventing loosening on an outer surface of the opening  12  of the container, and at its countering inner surface of the lower cap  110  is formed a loosening prevention slope protrusion  114  which is engaged to be positioned in a space between the engaging protrusions  15 .   
     
     
         8 . A container cap having a blade protector according to  claim 7 , wherein the engaging protrusion  15  is characterized in that a protrusion is sloped at an acute angle on a vertical surface and its countering loosening prevention slope protrusion  114  is formed at the same acute angle. 
     
     
         9 . A container cap having a blade protector according to  claim 8 , wherein the lower sides of the cutting blade  22  and the blade protector  310  define a bridge groove  312  with certain width and height, and a guide dam  134 , which is uniformly protruded upward, is formed from the start point to the end point of the engaging groove  135 , and the guide dam  134  is configured to help guide the movement of the bridge groove  312 . 
     
     
         10 . A container cap having a blade protector according to  claim 8 , wherein at the end portion of the guide dam  134  is provided a protrusion  136  which is pressed by the bridge groove  312  in order for the opening plate  132  to fast open downward. 
     
     
         11 . A container cap having a blade protector according to  claim 8 , wherein the width of the blade protector  310  is wider than the width of the cutting blade  22  and is positioned closer to the front side rather than the blades in the loosening direction of the upper cap  300   b.    
     
     
         12 . A container cap having a blade protector according to  claim 8 , wherein at the engaging groove  135  and the opening plate  132  is formed a pressing slope surface  135   e  which obliquely connects the engaging grooves  135  and the opening plate  132  and provides an initial pressing force of the blade protector  310 .