Buckle

A buckle comprising:

• a plug member having a shaft part protruding from one side of a first body, a first magnet inserted into the shaft part, a connection recess formed on an outer face of the shaft part, and a pair of guide protrusions formed on an inner wall of the connection recess;
• and
• a socket member having a connection protrusion formed on one side of a second body to be inserted into the connection recess, a coupling recess formed in a middle of the connection protrusion so that the shaft part is inserted into the coupling recess, a second magnet inserted into the coupling recess, and a pair of guide grooves formed in an outer surface of the connection protrusion to guide the pair of guide protrusions,
• wherein the plug member and the socket member are coupled with each other in a detachable manner,
• wherein the pair of guide grooves includes a pair of retaining grooves each having a retaining part formed in a middle of each retaining groove, and the pair of guide protrusions coupled to the pair of retaining grooves includes a pair of retaining protrusions each of which is caught to the retaining part not to be separated from the socket member, and
• wherein the pair of guide grooves are formed in the outer surface of the connection protrusion of the socket member to face each other, the pair of guide protrusions coupled with the pair of guide grooves are formed on the inner wall of the connection recess of the plug member to face each other, the pair of the retaining grooves are formed in the outer surface of the connection protrusion to face each other, and the pair of retaining protrusions coupled with the pair of retaining grooves are formed on the inner wall of the connection recess to face each other.