Plastic anchor member

Claim 1

A ONE-PIECE MOLDED PLASTIC ANCHOR MEMBER ADAPTED TO BE APPLIED TO AN APERTURED WORKPIECE FOR RECEIVING A THREADED MEMBER, COMPRISING A BODY SECTION PRESENTING LATERALLY EXTENDING SHOULDER SURFACES ENGAGEABLE WITH ONE SIDE OF A WORKPIECE, AND AN ATTACHMENT SECTION EXTENDING ALONG A PREDETERMINED CENTRAL AXIS FROM SAID BODY SECTION AND BEING INSERTABLE THROUGH A WORKPIECE APERTURE, SAID BODY SECTION INCLUDING MEANS PROVIDING A BORE EXTENDING ALONG A SECOND AXIS DISPOSED TRANSVERSELY OF SAID FIRST MENTIONED AXIS FOR RECEIVING A THREADED MEMBER AND SUPPORTING SAID THREADED MEMBER AT ONE SIDE OF AND GENERALLY PARALLEL TO SAID WORKPIECE, MEANS PROVIDING A NARROW SLOT EXTENDING THROUGH AND FROM AN ENTERING END OF SAID ATTACHMENT SECTION AND INTERSECTING SAID BORE MEANS ALONG A LINE EXTENDING GENERALLY PARALLEL TO SAID SECOND AXIS, SAID SLOT ALSO EXTENDING THROUGH AND FROM A FIRST SIDE OF SAID ATTACHMENT SECTION TOWARD BUT SHORT OF A SECOND OPPOSITE SIDE OF SAID ATTACHMENT SECTION, AND SAID ATTACHMENT SECTION INCLUDING LATERALLY EXTENDING SHOULDERS RESPECTIVELY ALONG OPPOSITE SIDES THEREOF DISPOSED BETWEEN SAID FIRST AND SECOND SIDES AND ENGAGEABLE WITH A SIDE OF THE WORKPIECE OPPOSITE FROM SAID FIRST MENTIONED SHOULDERS WHEN SAID ATTACHMENT SECTION IS INSERTED THROUGH SAID WORKPIECE APERTURE, SAID ATTACHMENT SECTION INCLUDING AN ADDITIONAL SHOULDER AT AND EXTENDING OUTWARDLY FROM SAID SECOND SIDE FOR ENGAGEMENT BENEATH THE WORKPIECE WHEN THE ATTACHMENT SECTION IS APPLIED TO THE WORKPIECE, SAID FIRST SIDE BEING SPACED FROM SAID CENTRAL AXIS AND SAID SPACING BEING A MAXIMUM IN THE VICINITY OF A SHOULDER SURFACE OF SAID BODY SECTION, SAID SLOT MEANS FACILITATING COLLAPSING OF SAID ATTACHMENT SECTION SHOULDERS TOWARD EACH OTHER DURING APPLICATION OF THE ATTACHMENT SECTION TO THE WORKPIECE, AND THE APPLICATION OF A THREADED MEMBER TO SAID BORE MEANS SERVING TO URGE SAID SHOULDERS FOR MORE AGGRESSIVE ENGAGEMENT WITH THE WORKPIECE.