JP5781974B2 - Hinge cap - Google Patents

Description

  The present invention is integrally fixed to the mouth portion of the container, closes the mouth portion of the container when not opened, rotates without opening from the container after opening, and can be opened and closed above the mouth portion of the container. It relates to a hinge cap.

Conventionally, in caps such as liquid detergent and sports drink filling bottles, a hinge cap having a skirt portion fixed to the mouth portion of the container and an upper lid that is pivotally connected to the skirt portion by a hinge mechanism is often used. It has been.
In addition, in the cap of the container, in order to identify whether the container is unopened or opened, the skirt portion fixed to the container and the upper lid that can be opened and closed are integrally connected by a tamper evidence mechanism that can be broken when not opened. It is known that the tamper evidence mechanism can be identified by breaking when opened.

The tamper evidence mechanism is known in various forms. For example, as shown in Japanese Utility Model Laid-Open No. 1-107558 (Patent Document 1), the skirt portion (the bottle lid 1 described in Patent Document 1) is known. Between the upper part (corresponding to the part that can be opened and closed above the peripheral wall 3 of the bottle lid 1 described in Patent Document 1) A hinge cap is known that forms a tamper evidence mechanism by forming an upper and lower bridge piece (corresponding to the bridge portion 8 of the bottle lid 1 described in Patent Document 1) that can be broken in the vertical direction when opened.
However, in a hinge cap having such a known tamper-evidence mechanism, when the upper lid is closed again after opening, the vertical and circumferential positions of the upper lid and the skirt are the same as when unopened. In addition, the upper and lower bridge pieces of the tamper-evidence mechanism are also broken at the same position as before the break, and there is almost no difference in shape between the upper and lower bridge pieces before and after the break. There was a problem that it was difficult.

In order to solve this problem, by separately providing a member that breaks and separates by applying force in different directions such as the opening direction of the upper lid, the separation state of the member is confirmed even when the upper lid is closed again after opening There is known a cap having a tamper-evidence mechanism that makes it possible to easily distinguish between unopened and opened by visual inspection.
For example, as shown in Japanese Patent No. 2743160 (Patent Document 2), a skirt portion (corresponding to the tamper-evidence band portion 22 described in Patent Document 2) and an upper cover (the upper cover portion 21 described in Patent Document 2) 1) (corresponding to the tamper evident band portion 22 in Patent Document 2) provided with a knob portion that is connected to the other by a connecting portion (corresponding to the bridge 32 described in Patent Document 2) when not opened. A cap is known in which the connecting portion can be broken by pulling the knob portion outward at the time of opening.

Japanese Utility Model Publication No. 1-107558 (all pages, all figures) Japanese Patent No. 2743160 (all pages, all figures)

In a cap having a known tamper-evidence mechanism as described in Patent Document 2, identification of whether the cap is unopened or unopened, which is a problem of the known cap as described in Patent Document 1 However, it is necessary to separately provide a member that breaks and separates, and there is a problem that the structure is complicated, the manufacturing process is complicated, and the cost is increased.
In particular, such a cap is generally manufactured by molding using a mold such as injection molding. Therefore, when the structure becomes complicated, a mold having a complicated shape is prepared, There is also a problem that it is necessary to increase the number of mold divisions, and the manufacturing cost is extremely increased.

Further, if the member to be broken and separated is completely separated from the cap, it is necessary to discard the member as garbage at the time of opening, and there is a problem that the convenience of the user is impaired.
In order to prevent generation of dust, it is also known that a part to be separated is provided with a part that does not break and remains connected to the cap, but remains as an unstable protrusion outside the cap. The user's hand or clothes get caught and the container is tumbled to spill the contents, or the parts are contaminated by the contents, etc. There was a problem.
Furthermore, when the protrusion is reduced while the member is connected, the state is the same as the state before the breakage. Therefore, as with the known cap described in Patent Document 1, unopened or unopened visually. There has been a problem that it is difficult to identify whether it has been completed.

  Therefore, the present invention solves the problem of the known hinge cap as described above, facilitates visual identification of unopened or opened, and has a simple structure and reduced manufacturing cost. It is an object of the present invention to provide a hinge cap that improves convenience without generating dust sometimes and without a protruding portion after opening.

The invention according to claim 1 includes a skirt portion fixed to the mouth portion of the container, and an upper lid provided through the skirt portion and a circumferential slit, and the upper lid is provided in the circumferential slit. A hinge cap formed by a hinge mechanism that is integrally connected to the skirt portion so as to be rotatable, and a tamper evidence mechanism that integrally connects the skirt portion and the upper lid when unopened. The dent mechanism has at least one upper lid extension convex wall, at least one skirt extension convex wall, and at least one circumferential bridge piece, and the upper lid extension convex wall has a lower end edge on the skirt portion side of the upper lid. The skirt extension convex wall is formed so as to protrude from the upper edge on the upper lid side of the skirt portion at a position that does not overlap with the upper lid extension convex wall in the circumferential direction. The circumferential bridge piece is flexible and connects the opposing side edges of the upper lid extension convex wall and the skirt extension convex wall and breaks when opened. have a weakening cross-sectional area in the central portion in the longitudinal direction is formed to be smaller than other portions as a portion, said tamper evident mechanism, the lower end edge of the skirt portion side of the upper lid skirt extending convex walls At least one upper and lower bridge piece that connects at least one portion between the upper end edge of the skirt portion or the upper end edge on the upper lid side of the skirt portion and the lower end edge of the upper lid extension convex wall so as to be breakable when opened, At least one of the upper and lower bridge pieces is provided at the upper edge of the skirt extension convex wall or the lower edge of the upper cover extension convex wall provided at a position symmetrical to the hinge mechanism in the circumferential direction, and symmetrical with respect to the hinge mechanism. The upper lid extension convex wall or the skirt extension convex wall is provided on both sides of the skirt extension convex wall or the upper lid extension convex wall provided at the position, and the circumferential bridge piece is circumferentially symmetric with the hinge mechanism, respectively. The side edge of both sides of the skirt extension convex wall or the upper lid extension convex wall provided at the position of the skirt extension convex wall is connected to the opposite side edge of the upper lid extension convex wall or the side edge of the skirt extension convex wall, respectively. the Tei Rukoto solves the above problems.

In the invention according to claim 2, in addition to the configuration of the hinge cap described in claim 1, the weakened portion is configured by forming a cut portion from the outside of the circumferential bridge piece. The above-mentioned problem is solved.
In the invention according to claim 3, in addition to the structure of the hinge cap according to claim 1 or 2, the circumferential bridge piece is formed such that its longitudinal direction has an angle with respect to the circumferential direction. Thus, the above-described problems are solved.
In the invention according to claim 4, in addition to the configuration of the hinge cap according to any one of claims 1 to 3 , the upper and lower bridge pieces are provided at positions symmetrical to the hinge mechanism in the circumferential direction. The above-mentioned problem is solved by being provided on the lower edge of the upper cover extension convex wall or the upper edge of the skirt extension convex wall provided symmetrically on both sides of the skirt extension convex wall or the upper lid extension convex wall, respectively. It is.
In addition to the configuration of the hinge cap according to any one of claims 1 to 4, the invention according to claim 5 is a side end of the opposed upper lid extension convex wall connected by the circumferential bridge piece. The said subject is solved because the space | interval of the circumferential direction of an edge and the side edge of a skirt extension convex wall is 3.5 mm or more and 6.5 mm or less.

According to the hinge cap of the invention according to claim 1, when the circumferential bridge piece is broken at the time of opening, both end portions in the longitudinal direction are pulled up and down by its flexibility, which is different from the initial longitudinal direction. Since the circumferential bridge piece is broken after being sufficiently deformed in the direction, the remaining piece after the breaking of the circumferential bridge piece is left in a state in which a large plastic deformation in the vertical direction due to the force received at the time of breaking remains.
By this, when the upper lid is closed again after opening, the remaining pieces of the circumferential bridge piece are not overlapped at the same position as before the break and are shifted up and down, and it is easy to identify whether unopened or opened by visual inspection. Become.
In addition, since it is not necessary to provide a member that breaks and separates, the structure is simple like the conventional upper and lower bridge pieces, the manufacturing cost is reduced, and no dust is generated at the time of opening, and the protrusion protrudes after opening. Convenience is improved without producing any part.
Furthermore, by providing the weakened portion at the central portion in the longitudinal direction, the remaining pieces after breaking at the weakened portion remain plastically deformed in opposite directions from both ends.
As a result, when the upper lid is closed again after opening, the leading ends of both remaining pieces are largely separated from each other vertically, and it becomes easy to visually identify whether they are unopened or opened.
Also, even when the upper lid rises within the elastic deformation that does not break the circumferential bridge piece, and the container is unsealed inside and opened, the upper and lower bridge pieces are provided so that the upper lid is broken. Since the ascent distance is shorter than that of the circumferential bridge piece and the upper lid is raised, the inside is not opened by a slight operation of the upper lid during storage or transportation, and safety is improved.
Furthermore, by providing the upper and lower bridge pieces at positions symmetrical to the circumferential direction with the hinge mechanism having the largest vertical movement, it is possible to effectively prevent slight movement of the upper lid during storage or transportation.
Also, by providing the circumferential bridge pieces symmetrically on both sides, the balance of the force applied during the opening operation is maintained, and it is possible to prevent the hinge cap from being damaged without applying excessive force in the twisting direction to the hinge mechanism. It becomes.
Furthermore, the circumferential bridge piece connects the opposing side edges of the upper and lower bridge piece sides of the skirt extension convex wall or upper lid extension convex wall, respectively, so that it is close to the position where the vertical movement is the largest, and is easy for the user to see. It is possible to break the circumferential bridge piece in position.
This makes it possible to set the leading ends of both remaining pieces when they are closed again after opening, so that they are largely separated from each other vertically, and it is easy to identify whether they are unopened or opened. It becomes.

According to the configuration of the second aspect, the weakened portion can be easily formed, and in particular, in the case of molding using a mold such as injection molding, it can be formed without any cost increase and process increase. Become.
According to the configuration of the third aspect of the present invention, the vertical position of both end portions when the circumferential bridge piece breaks can be greatly different from the vertical position in the initial state. The vertical plastic deformation caused by the received force can be further increased.
In this, it is possible to increase the vertical displacement of the front end portion of the remaining piece of the circumferential bridge piece when closed again lid after opening, further that Do facilitates unopened or saved or identification by visual observation .

According to the configuration of the present invention, the upper and lower bridge pieces can be provided at positions close to both ends of the circumferential bridge piece, respectively, and the circumferential bridge piece is generated by a slight movement of the upper lid during storage or transportation. It is possible to effectively suppress the elastic deformation of the steel sheet and to prevent the strength of the circumferential bridge piece from being lowered and the unexpected breakage.
According to the configuration of the present invention, by forming the circumferential bridge piece long, it is possible to increase the plastic deformation of the remaining piece after breakage, and also to take a large space for viewing. Therefore, it becomes easier to visually identify whether unopened or opened.

The perspective view at the time of unopening of the hinge cap which is one Embodiment of this invention. The enlarged view of the tamper evidence mechanism of the hinge cap of FIG. The front view at the time of unopening of the hinge cap which is one Embodiment of this invention. The rear view at the time of unopening of the hinge cap which is one Embodiment of this invention. Sectional drawing of the state attached to the container of the hinge cap of FIG. The front view at the time of the opening operation | movement initial stage of the hinge cap which is one Embodiment of this invention. Sectional drawing of the state attached to the container of the hinge cap of FIG. The front view at the time of the opening operation | movement middle of the hinge cap which is one Embodiment of this invention. Sectional drawing of the state attached to the container of the hinge cap of FIG. Sectional drawing which shows the operation | movement process to the perfect opening after the middle of the opening operation | movement of the hinge cap which is one Embodiment of this invention. The front view of the state which closed the upper cover again after opening of the hinge cap which is one Embodiment of this invention.

The present invention has a skirt portion fixed to the mouth portion of the container and an upper lid provided via the skirt portion and a circumferential slit, and the upper lid is rotated with respect to the skirt portion in the circumferential slit. A hinge cap formed of a hinge mechanism that can be integrally connected and a tamper evidence mechanism that integrally connects the skirt portion and the upper lid when not opened, wherein the tamper evidence mechanism has at least one upper lid extension. A convex wall, at least one skirt extension convex wall, and at least one circumferential bridge piece, wherein the upper lid extension convex wall protrudes from the lower end edge of the upper lid toward the skirt portion toward the skirt portion. The skirt extension convex wall is formed so as to protrude from the upper end edge on the upper lid side of the skirt portion toward the upper lid at a position that does not overlap with the upper lid extension convex wall in the circumferential direction. It has flexibility and connects the opposing side edges of the upper lid extension convex wall and the skirt extension convex wall, and is formed so that the cross-sectional area is smaller than the other parts at the center in the longitudinal direction as the part that breaks when opening The tamper-evidence mechanism is provided between the lower edge of the upper skirt part on the skirt part side and the upper edge of the skirt extension convex wall or between the upper edge of the skirt part upper cover side and the upper cover extension convex wall. The upper end of the skirt extension convex wall having at least one upper and lower bridge piece that connects at least one position between the lower end edge and the lower end edge so as to be ruptured when opened, and the upper and lower bridge piece is provided at a position symmetrical to the hinge mechanism. The upper lid extension convex wall or skirt is provided on both sides of the skirt extension convex wall or the upper lid extension convex wall provided on at least one edge of the edge or the lower end edge of the upper lid extension convex wall and in a circumferentially symmetrical position with respect to the hinge mechanism. Long convex walls are provided symmetrically on the left and right, and the circumferential bridge pieces are the upper lids facing the side edges on both sides of the skirt extension convex wall or the upper lid extension convex wall respectively provided at positions symmetrical to the hinge mechanism. It is formed to connect with the side edge of the extension convex wall or the side edge of the skirt extension convex wall, facilitates visual identification of unopened or opened, and has a simple structure and reduced manufacturing cost, Any specific shape, structure, material, etc. may be used as long as they improve convenience without generating dust at the time of opening and without a protruding portion after opening.

Below, the structure and operation | movement of the hinge cap 100 which is one Embodiment of this invention are demonstrated based on drawing.
As shown in FIGS. 1 and 5, a hinge cap 100 according to an embodiment of the present invention is provided with a skirt portion 120 fixed to the mouth portion 102 of the container 101, and the skirt portion 120 and a circumferential slit. A hinge mechanism 140 that integrally connects the upper lid 110 to the circumferential slit so as to be rotatable with respect to the skirt portion, and integrally connects the skirt portion 120 and the upper lid 110 when not opened. A tamper evidence mechanism 150 is formed.
In the present embodiment, the skirt portion tamper-evident ring 123 is provided at the lowermost end side of the skirt portion 120 in order to easily identify whether the hinge cap 100 is unopened or opened with respect to the mouth portion 102 of the container 101. Is provided.
In addition, the inner plug 103 having the dispensing nozzle portion 104 is fixed to the distal end portion of the mouth portion 102 of the container 101 inside the hinge cap 100.
The pouring nozzle portion 104 of the inner plug 103 is configured to be closed by the nozzle sealing portion 112 of the upper lid 110, and a breakable cutout portion 105 is formed on the upper inner peripheral surface of the pouring nozzle portion 104. The locking column 106 provided on the upper surface of the cutout portion 105 is engaged with the column engagement portion 113 provided on the inner surface of the upper lid 110 so as not to be detachable, and the cutout portion 105 is first opened by the upper lid 110. Is cut out from the dispensing nozzle portion 104 and held inside the upper lid 110. In addition, after the cutout part 105 of the extraction nozzle part 104 is opened, it is resealed by the nozzle sealing part 112 of the upper lid 110.
At the circumferentially symmetrical position of the hinge mechanism 140 at the upper end of the upper lid 110, a finger hooking projection 114 that protrudes forward is provided so that the user can easily open and close the upper lid 110.

As shown in FIGS. 2 and 3, the tamper evidence mechanism 150 is provided at a position symmetrical to the circumferential direction of the hinge mechanism 140 so as to protrude from the upper end edge 121 of the skirt portion 120 toward the upper lid 110 (circumferential slit direction). The skirt extension convex wall 170 and two skirt extension convex walls 170 provided so as to protrude from the lower end edge 111 of the upper lid 110 toward the skirt portion 120 (circumferential slit direction) on both sides of the skirt extension convex wall 170 at predetermined intervals in the circumferential direction. Two circumferential bridge pieces 180 that connect the upper lid extension convex wall 160, the side edge 161 of each upper lid extension convex wall 160 facing the side edge 171 of both of the skirt extension convex walls 170, and the skirt extension convex The upper and lower bridge pieces 190 connecting the upper end edge 172 of the wall 170 and the lower end edge 111 of the upper lid 110 are configured.
The circumferential bridge piece 180 is formed in a shape that becomes gradually thinner from both ends toward the central portion, and a weakened portion 181 is formed by providing a cut portion 182 from the outside in the thinnest portion of the central portion. Yes.
The circumferential distance a between the side end edge 161 of the facing upper cover extension convex wall 160 and the side end edge 171 of the skirt extension convex wall 170 connected by the circumferential bridge piece 180 indicates that the circumferential bridge piece 180 is broken. It is set to 3.5 mm or more and 6.5 mm or less so that it is easy to do.

As shown in FIGS. 4 and 5, the hinge mechanism 140 includes a pair of flexible hinge pieces 141 that connect the lower end edge 111 of the upper lid 110 and the upper end edge 121 of the skirt portion 120, and the pair of hinges. An upper lid side regulating wall 142 provided between the pieces 141 so as to extend from the lower end edge 111 of the upper lid 110, and a skirt provided so as to extend from the upper end edge 121 of the skirt portion 120 so as to face the upper lid side regulating wall 142. It is comprised with the part side control wall 143. FIG.
A side wall 122 extending from the upper end edge 121 of the skirt portion 120 to the upper lid 110 is provided at an intermediate portion in the circumferential direction between the tamper evidence mechanism 150 and the hinge mechanism 140 in order to narrow the gap between the circumferential slits. .
The side wall 122 may be provided at the lower end edge 111 of the upper lid 110 and may be formed so as to be continuous with the skirt extension convex wall 170 or the upper lid extension convex wall 160 described above.

It should be noted that the upper cover extension convex wall 160 may be provided at a position symmetrical to the circumferential direction of the hinge mechanism 140 and the skirt extension convex wall 170 may be provided on both sides thereof. Further, the skirt extension convex walls 170 may be provided alternately in the circumferential direction, and three or more circumferential bridge pieces 180 may be provided. The upper lid extension convex wall 160 and the skirt extension convex wall 170 may be one, and the circumferential bridge pieces 180 may be provided. It is good also as one.
The upper and lower bridge pieces 190 may be omitted, or one or more bridge pieces 190 may be provided. The installation position is also the opposite of the lower end edge 162 of the upper lid extension convex wall 160 and the upper end edge 121 of the skirt portion 120. It may be a place.
Furthermore, the upper and lower bridge pieces 190 may be provided between the side wall 122 and the lower end edge 111 of the upper lid 110.

The operation and action of the hinge cap 100 according to one embodiment of the present invention configured as described above will be described with reference to the drawings.
In the initial unopened state, as shown in FIGS. 1 to 3, the two circumferential bridge pieces 180 and the two upper and lower bridge pieces 190 of the tamper evidence mechanism 150 are not broken and the upper lid 110 is closed. It is.
Further, the pouring nozzle portion 104 of the inner plug 103 is closed by the nozzle sealing portion 112 of the upper lid 110, and the notch 105 provided on the upper inner peripheral surface of the pouring nozzle portion 104 is not broken. In this state, the nozzle portion 104 is sealed, and the locking column 106 provided on the upper surface of the cutout portion 105 is engaged with the column engaging portion 113 provided on the inner surface of the upper lid 110.

Next, when the user lifts the finger hooking projection 114 upward and rotates the upper lid 110 with the hinge mechanism 140 as a fulcrum, first, the two upper and lower bridge pieces 190 are pulled as shown in FIGS. Receive and break.
At this time, both ends of the two circumferential bridge pieces 180 are pulled in the vertical direction, and a tensile force in the longitudinal direction corresponding to the amount of movement in the vertical direction is generated. However, the tensile force in the longitudinal direction of the weakened portion 181 The break limit has not been reached.
And the weakening part 181 does not fracture | rupture, but the both ends of the circumferential bridge piece 180 are pulled up and down, and the plastic deformation to a bending direction generate | occur | produces in the circumferential bridge piece 180. FIG.
Further, in this state, the locking strut 106 provided on the upper surface of the cutout portion 105 is pulled by the strut engaging portion 113 provided on the inner surface of the upper lid 110, and the amount of pulling is the vertical play in the initial state. Therefore, the cutout portion 105 is not broken from the upper inner peripheral surface of the dispensing nozzle portion 104 by being within the range of elastic deformation of the cutout portion 105.

Further, when the upper lid 110 is rotated with the hinge mechanism 140 as a fulcrum, as shown in FIGS. 8 and 9, the two circumferential bridge pieces 180 are further pulled in the vertical direction at the center weakening portion 181. Break.
At this time, since a strong tensile force is applied to the circumferential bridge piece 180 before breakage, the circumferential bridge piece 180 is left protruding so as to face the side edge 171 of the skirt extension convex wall 170 and the side edge 161 of the upper lid extension convex wall 160. The first broken piece 180d and the second broken piece 180u are plastically deformed and remain with their broken ends inclined upward and downward, respectively.
Next, the locking strut 106 provided on the upper surface of the cutout portion 105 is further pulled by the strut engaging portion 113 provided on the inner surface of the upper lid 110, and the tamper evidence mechanism 150 side of the cutout portion 105 is connected to the dispensing nozzle portion 104. Breaking from the upper inner peripheral surface starts.
In the tamper evidence, it is preferable that the breakage of the cut portion 105 starts after the circumferential bridge piece 180 is broken.

Thereafter, when the upper lid 110 is further rotated using the hinge mechanism 140 as a fulcrum, a locking column 106 provided on the upper surface of the cutout portion 105 is provided on the inner surface of the upper lid 110 as shown in FIG. Further pulling by the strut engaging portion 113 causes the breakage of the cutout portion 105 from the upper inner peripheral surface of the dispensing nozzle portion 104, and finally the hinge mechanism 140 side breaks, so that the cutout portion 105 Separate completely from the upper inner surface.
Then, as shown in FIG. 10B, the separated cutout portion 105 has the locking strut 106 engaged with the strut engaging portion 113 provided on the inner surface of the upper lid 110, and the upper lid 110 is opened even after opening. Since it is held on the inner surface, it is not necessary to discard the cutout portion 105 at the time of opening.

Furthermore, in the present embodiment, the outer portion of the upper lid side regulating wall 142 of the hinge mechanism 140 formed in a planar shape is flat when the upper lid 110 is rotated 90 ° as shown in FIG. It is comprised so that it may overlap with the upper surface part of the skirt part side control wall 143 formed in the shape, and it is comprised so that the 90 degree open state of the upper cover 110 can be maintained.
Thus, when the container 101 is tilted and the contents are poured out from the dispensing nozzle portion 104 of the inner plug 103, the upper lid 110 does not rotate in a direction to close carelessly, and the contents are not in the upper lid 110. The upper lid 110 is not scattered by being hit.
When the upper lid 110 is further rotated by 90 ° or more from this state, as shown in FIG. 10 (d), the outer portion of the upper lid side regulating wall 142 of the hinge mechanism 140 formed in a planar shape becomes the skirt portion side regulating. It is configured to overlap the outer portion of the wall 143, and is formed so that the upper end portion of the outer portion of the skirt side regulating wall 143 protrudes to the outermost side, so that the open state of 180 ° or more of the upper lid 110 can be maintained. It is configured.
Thus, even when the contents are poured out with the container 101 turned upside down, the upper lid 110 does not rotate in a careless closing direction, and the contents hit the upper lid 110 and are scattered or the upper lid 110 is scattered. Will not foul.

When the upper lid 110 is closed after the first opening operation is completed, as shown in FIG. 11, the first broken piece 180d and the second broken piece 180u of the circumferential bridge piece 180 broken at the center are broken. Since the leading end is inclined upward and downward and is separated by a distance b in the up and down direction, it is very easy to visually identify the opened state.
At this time, since the upper and lower bridge pieces 190 having the same configuration as the conventional one overlap the original state at the same position as before the breakage, it is difficult to visually identify the opened state as illustrated.

The hinge cap of the present invention is suitable as a cap for sports drinks because it can open and close the upper lid 110 with one touch and can dispense contents without removing the lid, but various contents such as other beverages and seasonings It can be applied to other filling containers.
In addition, the hinge mechanism is not limited to the one in the above embodiment, and various configurations can be adopted, and the hinge mechanism may be detachable.
The inner plug and the cutout portion thereof are not limited to those in the above embodiment, and various configurations can be adopted, and a configuration in which the inner plug is omitted may be used.

DESCRIPTION OF SYMBOLS 100 ... Hinge cap 101 ... Container 102 ... Mouth part 103 ... Inner plug 104 ... Outlet nozzle part 105 ... Cut-out part 106 ... Locking strut 110 ... Upper lid 111・ ・ ・ Lower edge 112 ・ ・ ・ Nozzle sealing portion 113 ・ ・ ・ Pole engagement portion 114 ・ ・ ・ Finger protrusion 120 ・ ・ ・ Skirt portion 121 ・ ・ ・ Upper edge 122 ・ ・ ・ Side wall 123 ・ ・ ・Skirt part tamper-evidence ring 140 ... hinge mechanism 141 ... hinge piece 142 ... upper lid side regulating wall 143 ... skirt part side regulating wall 150 ... tamper evidence mechanism 160 ... upper lid extension Convex wall 161 ... side edge 162 ... lower edge 170 ... skirt extension convex wall 171 ... side edge 172 ... upper edge 180 ... circumferential bridge piece 181 ... weakening part 182 · Notches 190 ... up and down the bridge pieces

Claims (5)

A skirt portion fixed to the mouth portion of the container, and an upper lid provided via the skirt portion and a circumferential slit;
The circumferential slit is formed with a hinge mechanism that integrally connects the upper lid to the skirt portion so as to be rotatable, and a tamper evidence mechanism that integrally connects the skirt portion and the upper lid when not opened. A hinge cap
The tamper evidence mechanism includes at least one upper lid extension convex wall, at least one skirt extension convex wall, and at least one circumferential bridge piece;
The upper lid extension convex wall is formed so as to protrude from the lower end edge on the skirt portion side of the upper lid toward the skirt portion,
The skirt extension convex wall is formed so as to protrude from the upper end edge on the upper lid side of the skirt portion toward the upper lid at a position not overlapping with the upper lid extension convex wall in the circumferential direction,
The circumferential bridge piece is flexible and connects the opposing side edges of the upper lid extension convex wall and the skirt extension convex wall and has a cross-sectional area at the center in the longitudinal direction as a portion that breaks when opened. There have a weakened portion formed to be smaller than the other portions,
The tamper evidence mechanism is provided between the lower end edge of the upper lid on the skirt portion side and the upper end edge of the skirt extension convex wall or between the upper end edge of the skirt portion upper lid side and the lower end edge of the upper lid extension convex wall. Having at least one upper and lower bridge piece that connects at least one of the two pieces in a breakable manner when opened,
The upper and lower bridge pieces are provided at least one on the upper edge of the skirt extension convex wall or the lower edge of the upper lid extension convex wall provided at a position symmetrical to the hinge mechanism in the circumferential direction,
The upper lid extension convex wall or the skirt extension convex wall is provided symmetrically on both sides of the skirt extension convex wall or the upper lid extension convex wall provided at a position symmetrical to the hinge mechanism,
The circumferential bridge pieces respectively have side edges on both sides of the skirt extension convex wall or the upper lid extension convex wall provided at positions symmetrical to the hinge mechanism, respectively. hinge cap characterized that you have been formed so as to be connected to the side edge of the skirt extending convex wall.   The hinge cap according to claim 1, wherein the weakened portion is formed by forming a cut portion from the outside of the circumferential bridge piece.   The hinge cap according to claim 1 or 2, wherein the circumferential bridge piece is formed such that a longitudinal direction thereof has an angle with respect to the circumferential direction. The upper and lower bridge pieces are provided at the lower end edge of the upper cover extended convex wall or the skirt extended convex wall provided symmetrically on both sides of the skirt extended convex wall or the upper lid extended convex wall provided at a position symmetrical to the hinge mechanism in the circumferential direction. The hinge cap according to any one of claims 1 to 3, wherein the hinge cap is also provided on each of upper end edges. A distance in a circumferential direction between the side edge of the facing upper cover extension convex wall and the side edge of the skirt extension convex wall connected by the circumferential bridge piece is 3.5 mm or more and 6.5 mm or less. The hinge cap according to any one of claims 1 to 4 .

Images