A child resistant safety cap having a cover and a safety mechanism by which finger dexterity is required to open the cap, while the safety mechanism capable of being released if it is unnecessary. The cap comprises a cap body 1 having a skirt 3 with at least one stopping piece 9 at one side thereof.
A child resistant safety cap having a cover and a safety mechanism by which finger dexterity is required to open the cap, while the safety mechanism capable of being released if it is unnecessary. The cap comprises a cap body 1 having a skirt 3 with at least one stopping piece 9 at one side thereof. The stopping piece 9 has a base end fixed to a lower portion of the skirt 3 such that the stopping piece is pushable inwardly and swayable about the base end. The leading end portion of the stopping piece 9 is confronting at its outside with the insides of an outer tube 14 of the cover, and first and second engagement means 10, 18 are provided at confronting sides of the stopping piece 9 and the outer tube 14 for providing mutual engagement, such that when the stopping piece 9 is in an initial position, the first and second engagement means 10, 18 are engaged unless the stopping piece 9 is pushed inwardly against its elasticity. The stopping piece is adapted to move to a second position where the first and second engagement means are separated without pushing the stopping piece.
대표청구항▼
The invention claimed is: 1. 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 pie
The invention claimed is: 1. 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. 2. A safety cap according to claim 1, wherein the skirt has a pair of stopping pieces which are diametrically opposed to each other and spaced generally equidistantly from the hinge, and that a pair of first engagement means are formed in the stopping pieces, while a pair of second engagement means are formed in the outer tube of the cover corresponding to the first engagement means. 3. A safety cap according to claim 1, wherein a small outer diameter portion is defined by an upper end portion of the cap body, which is extending upwardly from the skirt with a step portion being intermediate between the upper end portion and the skirt, and the small diameter portion is formed by an upper end portion of the stopping piece and an upper end of a reminder of the skirt except for the stopping piece, which are contoured complementary and generally continuously to each other, and the outer tube is adapted to fit on the small outer diameter portion. 4. A safety cap according to claim 1, wherein the stopping piece is gradually increasing in a thickness from the proximal end to the distal end. 5. 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 end portion being able to confront to an inner surface of an outer cylinder, the stopping piece is capable of being pushed inwardly to swing around the proximal end portion; and 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, wherein a fragile line is formed at a lower part of the stopping piece such that the stopping piece is able to cut off from the cap body by breaking the fragile line, such that the first and second engagement means are separated from each other, allowing an opening of the cover without pushing the stopping piece inwardly. 6. A safety cap according to claim 5, 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. 7. A safety cap according to claim 5, wherein the stopping piece is extending laterally outwardly from the fragile line when the safety cap is molded, and then turned to an upstanding condition after the molding of the safety cap against its elasticity, a pair of engagement projections are protruded from opposite sides of an upper part of the stopping piece and adapted to forcibly ride over an edge of the slit to engage with an inner surface of the skirt.
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