Abstract: Described is a belt buckle to which may be attached a tool in the form of a flat plate. The buckle body is formed by a fitting case and a base plate mounted to the rear surface of the fitting case. A leaf spring is mounted in the buckle body for pressingly holding the tool in the housed state. The plate spring has a pair of short strips for acting on the central part of the tool and a long strip for acting on the inner end of the tool. The upper and lower sides of the foremost portions of the fitting case are bent back to provide an engaging portion for preventing inadvertent withdrawal of the tool from the buckle body. When withdrawing the tool housed in the buckle body, it is only necessary to apply finger pressure on the end of the tool exposed through the central end notch of the fitting case.

Abstract: A belt buckle to which a plate-like tool can be attached. The belt buckle is constructed of a base plate and a fitting case covering the front side of the base plate so that a fitting space for fitting the tool therein is formed inbetween. In the fitting space, on the other hand, there is mounted a locking plate for holding the tool under its fitted condition. This locking plate is constructed of a retaining portion, which is made engageable with the engagement opening of the tool, and a pressure portion for pushing the back of the tool under its engaging condition to the front. When the tool is to be taken out of the fitting space, a finger is inserted through the aperture of the fitting case thereby to inwardly push the retaining portion of the locking plate so that the tool is extracted under the condition in which the retaining portion is disengaged to the back from the engagement opening of the tool.