Patent ID: 8465242
Filing Date: 2013-06-18
Classification: F16B

Abstract:
1. A fastener for attaching to a structure having opposing edges that flank a cavity across a gap, said fastener comprising: a knob assembly having a grip and an annular shaft disposed thereon along an axis of symmetry, said grip having a central through-hole coaxial with said annular shaft, said annular shaft having an arc tab that radially protrudes therefrom; a base assembly for engaging said knob assembly, said base assembly including a clamp and an outer key-annulus disposed thereon, the clamp having first and second dimensions perpendicular to said axis, said first dimension being shorter than the gap, said base assembly being flanked by opposing ledges along said second dimension, each ledge arranged to engage a respective edge of the structure, said outer key-annulus having an annular notch opposite said clamp, said annular shaft being coaxially insertable into said outer key-annulus; and a latch member for engaging said base assembly, said latch member including a stud and a flange, said stud being insertable at a proximal end into said annular shaft and said through-hole, said flange being disposed at a distal end of said stud and having a third dimension shorter than the gap, said flange and said block being insertable into the cavity along said respective third and first dimensions through the gap, responsive to clockwise turning, said grip rotates said tab within said angular notch until inhibited by said outer key-annulus, whereby said proximal end of said stud retracts into said through-hole, thereby engaging the fastener to the structure, said through-hole including a flat wall parallel to said axis, said stud having a truncation surface at said proximal end, said truncation surface engaging said wall in response to retraction of said stud into said through-hole, and said wall forming by a linear insert that fills a corresponding linear slot within said knob assembly, said slot extending through a surface substantially perpendicular to said axis.