| 摘要 |
A one-piece plastic retainer device is provided for snap-in blind attachment in a keyhole-shaped apertured panel. The retainer device comprises a flat rectangular base having a push-in fastener shank adjacent one transverse edge. The shank extends from the base inner face while a fastener head and subjacent spacer collar extend from the base outer face in coaxial alignment with the shank. An integral wedge-shaped locking cam projects from the base outer face and is aligned on the base major axis of symmetry adjacent the base other transverse edge. The locking cam has a raised outboard facet and an inboard ramp sloped toward the fastener head with the facet spaced a predetermined longitudinal distance from a transverse outboard collar stop shoulder. The panel keyhole-shaped aperture is configured and dimensioned enabling the head to be initially inserted in the circular opening thereof. Upon the retainer being moved longitudinally into the slot the retainer is captured in a snap-in manner by virtue of the collar stop shoulder and the cam facet being positioned juxtaposed associated longitudinally opposed ends of the keyhole-shaped aperture.
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