Front Release Buckle

Abstract

A front release buckle of the invention includes a plug and a socket. The plug includes: a base; a leg that projects from the base; and an engaging portion formed to the leg. The socket includes: a body having an insertion opening; a housing space that is defined inside the body and capable of housing the leg inserted through the insertion opening; an engaged portion that is formed on the body and engageable with the engaging portion; and a manipulation portion that disengages an engagement between the engaging portion and the engaged portion. The plug and the socket are formed to be flat. The leg is flat and flexible in a thickness direction. The engaging portion and the engaged portion are engaged with each other in the thickness direction. The engaging portion projects in a width direction of the leg and is formed within the thickness of the leg.

1 . A front release buckle comprising:
 a plug; and   a socket into which the plug is inserted for engagement, wherein the plug comprises:   a base;   a leg that projects from the base; and   an engaging portion that is formed to the leg,   the socket comprises: a body having an insertion opening; a housing space that is defined inside the body and capable of housing the leg inserted through the insertion opening; an engaged portion that is formed on the body and engageable with the engaging portion; and a manipulation portion that disengages an engagement between the engaging portion and the engaged portion,   the plug and the socket are formed to be flat,   the leg is flat and flexible in a thickness direction,   the engaging portion and the engaged portion are engaged with each other in the thickness direction, and   the engaging portion projects in a width direction of the leg and is formed within the thickness of the leg.   
     
     
         2 . The front release buckle according to  claim 1 , wherein
 in an engagement between the plug and the socket, the manipulation portion and the engaging portion are positioned in a manner capable of contacting with each other,   the manipulation portion is positioned in the thickness direction of the leg to face the leg and has flexibility in the thickness direction, and   the manipulation portion comprises a projection projecting inward of the socket.   
     
     
         3 . The front release buckle according to  claim 1 , wherein
 the engaging portion comprises inclined portions respectively having inclined surfaces near the manipulation portion, and   the manipulation portion is flexed toward the engaging portion to cause the projection to press the inclined surfaces.   
     
     
         4 . The front release buckle according to  claim 3 , wherein
 an angle of each of the inclined surfaces is 15 degrees.   
     
     
         5 . The front release buckle according to  claim 1 , further comprising:
 a pair of holders that position and hold the plug projecting from the base and the socket.   
     
     
         6 . The front release buckle according to  claim 5 , wherein
 the leg diagonally projects in a manner to approach the manipulation portion as the leg extends in an insertion direction.