Patent ID: 7296711

Claim:
A safety cap comprising: a cap body having a top wall with a discharge spout, and a skirt depending from the top wall; a cover having an outer tube which is connected to the cap body via a hinge and adapted to fit on an upper part of the skirt; at least one stopping piece which is disposed at one side of the skirt, having a proximal end portion fixed to a lower portion of the skirt and a distal end portion, an outer surface of the distal portion being able to confront to an inner surface of the outer tube, the stopping piece is capable of being pushed inwardly to swing around the proximal end portion; first and second engagement means formed on the outer surface of the distal end portion and the inner surface of the outer tube, for providing mutual engagement and cooperating with each other to maintain a closed state of the cover, and for releasing the engagement by pushing the stopping piece inwardly; and a sliding member which is generally U-shaped and is provided at an outer surface of the stopping piece, wherein the stopping piece is formed as a portion of the skirt within an inverted U-shaped slit which is cut at one side of the cap body from a perimeter of the top wall into the skirt except a lower end portion of the skirt so as to enable the stopping piece to swing about the proximal end portion to laterally outwardly, wherein the sliding member has an intermediate connecting portion from both ends of which a pair of sliding arms are protruding parallel for insertion into a pair of vertical portions of the inverted U-shaped slit, and a pair of clicks, one formed on a leading end of each sliding arm, and adapted to engage with a margin within the slit on the skirt side irremovably from the slit such that the sliding member is adapted to move up and down with respect to the stopping piece, with the intermediate connecting portion being in contact with the outer surface of the stopping piece, wherein the outer surface of the stopping piece is formed into a slant surface protruding gradually outward from the margin within the slit in proceeding from the proximal end of the stopping piece to the distal end of the stopping piece such that the slant surface is pressed inwardly by the intermediate connecting portion when the sliding member is pushed upwards, and wherein the stopping piece is movable by the up-and-down movement of the sliding member between an initial position where the first and second engagement means are cooperating to maintain a closed state of the cap, and a second position where the first and second engagement means are separate from each other, and does not recover to a mutual engagement state.