Patent attributes
Provided is a buckle for a chest strap of a knapsack, including a plug member including a plug plane portion formed at a front side of a base so as to be connected to the base via a plug inner-side slope, a plug front-end slope extending forward from the plug plane portion, a first magnet embedded in a middle portion of the plug plane portion, and coupling protrusions protruding from opposite sides of the first magnet, and a socket member including a socket plane portion formed at a front side of a base so as to be connected to the base via a socket inner-side slope, a socket front-end slope extending forward from the socket plane portion, a second magnet embedded in a middle portion of the socket plane portion, and coupling recesses formed in opposite sides of the second magnet so as to correspond to the respective coupling protrusions.
