Patent ID: 8747013

Claim:
A fastening device comprising: a housing, the housing terminating in a coupling plate defining a planar outwardly facing surface with an aperture therein; a first engagement member, the first engagement member passing through the aperture and defining a first arcuate surface with a first outwardly extending foot at a proximal end inside the housing and a first protruding rim at a distal end outside the housing; a second engagement member, the second engagement member passing through the aperture and defining a second arcuate surface with a second outwardly extending foot at a proximal end inside the housing and a second protruding rim at a distal end outside the housing; a slide, the slide adapted to be translated between a first position and a second position; wherein, when the slide is in the first position, a spacing portion of the slide occupies a space outside the housing between the first engagement member and the second engagement member so that the first engagement member is fixedly spaced apart from the second engagement member; wherein, when the slide is in the second position, the first engagement member and the second engagement member are free to limitedly pivot in the housing to a condition in which the distal end of the first engagement member contacts the distal end of the second engagement members; wherein a pressing portion of the slide presses the first outwardly extending foot and the second outwardly extending foot against the coupling plate when the slide is in the first position.