Patent ID: 7770267

Claim:
A buckle, comprising: a buckle body having two slots at two sides and a release button mounted on a top wall; a pair of waist-strap fasteners, wherein one of the waist-strap fasteners comprises: a prong at one side; and a first arm and a second arm at the other side, the waist-strap fastener being secured to the buckle body while the prong is inserted into one of the slots of the buckle body and removed from the buckle body while the release button is pressed; a pair of waist-strap buttons, wherein one of the waist-strap buttons corresponding to the waist-strap fastener wherein comprises the prong at one side and the first arm and the second arm at the other side comprises a mounting section wherein the first arm comprises a first wedge and the second arm comprises a second wedge to prevent the waist-strap button removing from the waist-strap fastener when the mounting section of the waist-strap button is coupled to the waist-strap fastener, the waist-strap button comprising a projection extending from the mounting section; and a shoulder-strap fastener, wherein the prong at one side of the waist-strap fastener inserts through the shoulder-strap fastener and secures the shoulder-strap fastener on the buckle body.