Patent ID: 8181383

Claim:
A mouse trap having retractable biting portions comprising: a base having a front seat, a pivoting portion, and a rear seat, said front seat having a substantially U-shaped lower outer edge, a plurality of receiving holes, and a bait holder, a hooking portion being disposed on said rear seat; a movable portion having a front frame portion, an upper frame portion, and a restoring force generating element, said front frame portion being disposed with an upper outer edge and a plurality of retractable biting portions, said upper outer edge being corresponding to said lower outer edge, said movable portion being pivoted on said pivoting portion of said base and having at least a first position and a second position, said restoring force generating element generating a force to urge said movable portion moving from said first position to said second position; a trigger pivotally mounted on said base, said trigger having a triggering plate and a triggering opening, said triggering plate having a front triggering edge, so that when said trigger is pressed, said triggering opening slides over an opposite end of said hooking portion, so as to force said movable portion from said first position quickly moving to said second position, and said retractable biting elements insert into said corresponding receiving holes; each of said retractable biting portions including: [a] a recess disposed on said front frame portion; [b] a biting element being retractable within a predetermined distance in said recess, said biting element having an outer end and an inner end; [c] a resilient portion connected with said inner end of said biting element and said recess so that said biting element is retractable in said recess.