Patent ID: 8312602

Claim:
A buckle comprising: a buckle body and a whistle, the buckle body having a plurality of first portions for either one or both of attaching or receiving respective belt portions, the buckle body having a second portion distinct from each of the first portions and to which the whistle is detachably coupled; wherein said second portion allows slidable detachment of the whistle from said buckle body while said respective belt portions are received or attached at said first portions; wherein all belt portions received or attached at the buckle are received or attached by said first portions independent of a coupling state between the whistle and the second portion; wherein the second portion comprises a sliding part; wherein the whistle comprises a whistle body to generate sound, and a connection part connected to the whistle body and configured to detachably connect to the sliding part; and wherein the connection part comprises: a front surface provided with an insertion groove having the same shape as a first end of the sliding part, the front surface having a first edge adjacent and connected to the whistle body, wherein the first end of the sliding part is configured to be inserted into the insertion groove; a right side surface, extending from a second edge of the front surface opposed to the first edge, the right side surface being provided with the insertion groove formed in a length direction of the connection part, where the sliding part is configured to be inserted into the insertion groove; a flat surface extending in the length direction of the connection part from a third edge of the front surface, the third edge of the front surface extending between the whistle body and the right side surface; a rear surface opposing the front surface in order to support the sliding part; and a bottom surface extending in the length direction of the connection part from a fourth edge of the front surface, the fourth edge of the front surface extending between the whistle body and the right side surface.