Safety Buckle for a Slide Rail

FIG. 1 is a front perspective view of a safety buckle for slide rail showing our new design; FIG. 2 is a front elevational view thereof; FIG. 3 is a rear elevational view thereof; FIG. 4 is a left side elevational view thereof; FIG. 5 is a right side elevational view thereof; FIG. 6 is a top plan view thereof; FIG. 7 is a bottom plan view thereof; and, FIG. 8 is a rear perspective view of a safety buckle for slide rail showing our new design. The dash-dash broken lines illustrate portions of the article that does not form part of the claimed design.