Fastener for coupling together two panels in face-to-face relation

Claim 1

A fastener for coupling together two panels in a face-to-face relation to each other comprising a male member to be fitted in one of said panels and a female member to be fitted in the other one of said panels, said male member having a head portion to be fitted in a mounting hole of said one panel and a locking shaft portion depending from the lower surface of said head portion, said female member having a mounting flange for regulating the extent of insertion into a mounting hole in said other panel, a hollow locking body portion depending downwardly from said mounting flange and having a blind space and locking means to be locked with respect to said mounting hole, said two members being coupled together to couple together said two panels in face-to-face relation to each other, said female member having reinforcement portions projecting from the outer periphery of diametrically opposite sides of said locking body portion and extending substantially from said mounting flange in the longitudinal direction of and axially beyond said locking body portion, said reinforcement portions being like a flat plate as a whole and having a tapering end axially beyond said locking body portion, and elastic locking pawl portions extending as a pair reversely from junctions axially beyond said locking body portion with opposite sides of said tapering end of said reinforcement portions toward said mounting flange and being laterally spaced from and substantially flexibly yieldable relative to said locking body portion and independent thereof, and said pawl portions each having a substantially arcuate sectional profile and presenting opposite free longitudinally extending edges, said elastic pawl portions each having an inwardly bent V-shaped free end portion having an inclined outer surface.