Patent ID: 7713010

Claim:
A wall anchor device for engaging and anchoring into a wall member and for anchoring a work piece to the wall member, said wall anchor device comprising: an outer anchor sleeve including an outer end portion having a peripheral lip extended outwardly therefrom for engaging with the wall member and for anchoring said outer anchor sleeve to the wall member and for limiting said outer anchor sleeve to move relative to the wall member, and including at least one peripheral flange extended outwardly from said outer end portion thereof for engaging with the wall member, and including a middle portion having at least one slot formed therein for forming at least one arm and for engaging with the wall member, and for selectively anchoring said outer anchor sleeve to the wall member, said outer anchor sleeve including a bore formed therein, and including an inner end portion, a threaded member engageable into said bore of said outer anchor sleeve, and including a thread shank for threading with said inner end portion of said outer anchor sleeve, and including an enlarged head provided on an outer end thereof for selectively engaging with the work piece, and including an inner end portion, a drill element attached to said inner end portion of said threaded member to allow said drill element to be rotated and driven by said threaded member, said outer anchor sleeve including a projecting device protruding from an internal surface into said bore of said outer anchor sleeve at said inner end portion of said outer anchor sleeve for selectively engaging wit said thread shank of said treaded member and for ensuring that said thread shank of said threaded member is engaged with said inner end portion of said outer anchor sleeve, and an outer segment provided on said outer end portion of said outer anchor sleeve, said outer segment extending axially away from said peripheral lip to define a stopping surface for axially offsetting said enlarged head of said threaded member from said peripheral lip of said outer anchor sleeve when said peripheral lip of said outer anchor sleeve is engaged with the wall member