JP2021075329A - Hinge cap - Google Patents

Abstract

To provide a hinge cap capable of opening an upper lid while separating a sealing member from a cap body only by lifting up a knob part of the upper lid during initial lid-opening.SOLUTION: A hinge cap comprises a cap body A attached to a mouth part 1 of a container body D, and an upper lid B continuously provided to the cap body A via a hinge C. The cap body A comprises an attachment part 5 attached to the mouth part 1 of the container body D, and a sealing member E continuously and separably provided on an opposite side of the hinge C of the attachment part 5. The upper lid B comprises a top wall 20; a side peripheral wall 21 vertically arranged from a peripheral edge of the top wall 20; a knob part 27 protruded from the opposite side of the hinge C of the side peripheral wall 21; and a thin wall part 21b that is formed above the knob part 27 of the side peripheral wall 21, and deforms the knob part 27 from a base part when the knob part 27 is lifted up. The knob part 27 is engaged with the sealing member E when a lid is closed, and comprises a sealing engagement part 28 for separating the sealing member E from the cap body A when the lid is opened.SELECTED DRAWING: Figure 1

Description

The present invention relates to a hinge cap, particularly a hinge cap provided with a mechanism for preventing unauthorized opening.

In various containers with hinge caps, in which the cap body and the upper lid are connected via hinges, to the mouth of the container body that stores the contents, these contents should not be illegally removed or refilled. In addition, the sealing member is detachably connected to the cap body, and when the cap body is unopened, the sealing member is engaged with the upper lid to maintain the closed state, and the opened state can be visually confirmed by the presence or absence of the sealing member. Such a hinge cap has been conventionally known (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2012-214241

However, in the hinge cap described in Patent Document 1, when the hinge cap is first opened, the sealing member is first separated from the cap body, then a finger is hung on the finger hook recess of the upper lid, and the upper lid is attached with the hinge as a fulcrum. There is a problem that it takes time and effort to open the lid because two operations of pushing it up and opening the lid are required.

An object of the present invention is to solve the above-mentioned problems, and it is possible to visually recognize an illegal opening in the state of a sealing member fragilely connected to the cap body, and at the time of the first opening, the grip portion of the upper lid is opened. It is an object of the present invention to provide a hinge cap capable of separating the sealing member from the cap body and opening the upper lid simply by lifting.

In order to solve the above problems, the present invention is a hinge cap including a cap body attached to the mouth of the container body and an upper lid connected to the cap body via a hinge as a hinge cap. The main body is provided with a mounting portion to be mounted on the mouth of the container body and a sealing member connected to the side opposite to the hinge of the mounting portion so as to be separable, and the upper lid hangs from the top wall and the peripheral edge of the top wall. A thin wall portion that is formed above the provided side peripheral wall, a knob portion that protrudes from the side opposite to the hinge of the side peripheral wall, and the knob portion of the side peripheral wall, and deforms the knob portion from the base when the knob portion is lifted. The knob portion is provided with a sealing locking portion that engages with the sealing member when the lid is closed and separates the sealing member from the cap body when the lid is opened.

As an embodiment of the sealing member of the present invention, the sealing member includes a sealing wall formed in the circumferential direction at a predetermined distance from the outer peripheral surface of the mounting portion, and the sealing locking portion is mounted with the sealing wall when the lid is closed. Adopting a configuration characterized by being inserted from above into the space formed between the outer peripheral surface of the portion, the sealing wall is provided with side walls facing the mounting portion at both ends, and the side walls are At least one of them is provided with a breakable weakening portion connected to the mounting portion, and the sealing locking portion is formed at the insertion wall portion suspended from the knob portion and the lower portion of the insertion wall portion, and is formed on the lower end surface of the sealing wall. A configuration is adopted, which comprises a fitting portion that engages with.

As a specific embodiment of the hinge cap of the present invention, the mounting portion includes a lid engaging portion that engages with the upper lid, and an outer peripheral wall portion that is vertically hung from the outer peripheral edge of the lid engaging portion. The upper lid is continuously provided on the outer peripheral wall portion via a breakable weakening portion, and the upper lid adopts a configuration characterized in that an engaging recess that engages with the lid engaging portion is provided at the lower end portion of the inner circumference of the side peripheral wall. Further, the upper lid is provided with an outer peripheral recess extending from the center to a predetermined position on both sides in the circumferential direction and recessed from above leaving the lower end portion on the outer periphery on the side opposite to the hinge of the side peripheral wall. Adopt the configuration.

As another embodiment of the sealing member of the present invention, the sealing member adopts a configuration characterized by including a covering portion covering the knob portion, and the covering portion is the outer lower surface of the sealing locking portion of the knob portion. A configuration characterized by including a bottom wall portion covering the portion and a side wall portion covering the outer surface of the knob portion is adopted.
Further, as another specific embodiment of the hinge cap of the present invention, the knob portion adopts a configuration characterized in that the base portion is provided with a deformed recess recessed from the upper surface.

By adopting the above configuration, the hinge cap of the present invention separates the sealing member from the cap body and at the same time opens the lid by only one operation of lifting the knob when the hinge cap is first opened. Since it is possible to visually check the unauthorized opening, it is not necessary to open the upper lid.

Further, by providing a covering portion covering the knob portion on the sealing member, it is possible to prevent the knob portion from being pushed up and illegally opening the lid before opening, and by lifting the covering portion from below, the knob portion can be lifted. Not only can the lid be pushed up and easily opened, but the sealing member can be reliably separated from the cap body by lifting the covering portion that is a part of the sealing member.

It is explanatory drawing which shows the container which attached the hinge cap which is 1st Example of this invention, (a) is a side sectional view, (b) is a side view. It is explanatory drawing which shows the opening of the hinge cap which is 1st Example of this invention, (a) is a top view, (b) is a side sectional view. It is explanatory drawing which shows the main part at the time of first opening the container which attached the hinge cap which is 1st Example of this invention, (a) is a side sectional view, (b) is a side view. It is explanatory drawing which shows the container which attached the hinge cap which is 2nd Example of this invention, (a) is a side sectional view, (b) is a front view. It is explanatory drawing which shows the opening of the hinge cap which is 2nd Example of this invention, (a) is a top view, (b) is a side sectional view. It is explanatory drawing which shows the main part at the time of opening the container which attached the hinge cap which is 2nd Example of this invention, (a) is the side sectional view at the time of opening the lid for the first time, (b) is the opening of a lid. It is a side view of the inside.

Next, the hinge cap of the present invention will be described with reference to the drawings with reference to examples.
In the following description, in FIG. 1, the upward direction is "up", the downward direction is "down", the right direction is "back side" (hinge side), and the left direction is "front side" (hinge side). On the other side).

In FIGS. 1 and 2, A is a cap body that is plugged into the container body D, B is an upper lid that is connected to the cap body A via a hinge C, and E is a detachable shape on the front side of the cap body A. It is a sealing member that is engaged with the upper lid B.

As shown in FIG. 1, the container body D includes a mouth portion 1, and a fitting protrusion 2 is formed on the outer periphery of the mouth portion 1.
The cap body A has a mounting portion 5 mounted on the mouth portion 1 of the container body D, a base wall 6 extending inward from the upper end of the inner edge of the mounting portion 5 and closing the opening of the mouth portion 1, and a base wall. It includes a pouring cylinder 7 that is erected from around the spout that penetrates 6 and a sealing member E that is detachably connected to the front side of the mounting portion 5.

The base wall 6 is formed one step upward from the inner end of the lower wall portion 6a via the step portion 6b and the lower wall portion 6a extending from the upper end of the inner edge of the mounting portion 5, and the pouring cylinder 7 is continuously provided at the inner end. It is composed of an upper wall portion 6c.
In this embodiment, the dispensing cylinder 7 is provided at a position biased toward the front side from the central portion of the cap body A, but the dispensing cylinder 7 may be located at the central portion.

The mounting portion 5 is connected to the outer edge of the base wall 6, and has an annular lid engaging portion 8 that engages with the upper lid B, an inner cylinder 9 that is vertically hung from the inner peripheral edge of the lid engaging portion 8, and a lid engagement. It is composed of an outer peripheral wall portion 10 which is vertically hung from the outer peripheral edge of the joint portion 8 and has a hinge C continuously provided at a part of the upper end portion.
In the outer peripheral wall portion 10, a sealing member E is continuously provided in the upper outer periphery on the front side within a predetermined range, and the engaging protrusion 11 that engages with the fitting protrusion 2 of the mouth portion 1 of the container body D in the lower part of the inner circumference. Is provided.

In this embodiment, the outer peripheral wall portion 10 has a substantially V-shaped outer peripheral cut in the outer peripheral surface in a plan view in the vicinity of either the left or right side of the hinge C, as shown in FIGS. 1 (b) and 2 (a). Slit groove so that the portion 13 is cut from above and extends in a predetermined range in the circumferential direction of the back side (hinge C side) starting from the position separated by the upper thin portion on the inner peripheral side of the outer peripheral cut portion 13. 14 is recessed from above.
Therefore, when the upper lid B of the hinge cap is pulled down through the hinge C when the container is discarded, the outer peripheral cut portion 13 becomes a vertical tear line, the slit groove 14 becomes a circumferential tear line, and the outer peripheral wall portion 10 becomes an outer circumference. It is broken in the circumferential direction starting from the notch 13, and the engagement protrusion 11 of the broken part and the mouth 1 of the container body D are disengaged, and the hinge cap is easily pulled away from the container body D. , Can be sorted and discarded.

As shown in FIGS. 1 and 2, the upper lid B is vertically provided from the top wall 20 and the peripheral edge of the top wall 20, and the side peripheral wall 21 and the top wall 20 in which the hinge C is continuously provided at a predetermined position at the lower end of the outer periphery. A sealing cylinder 22 that is hung from the lower surface and whose outer circumference is inserted into the inner circumference of the ejection cylinder 7 of the cap body A when the lid is closed, and a sealing cylinder 22 that is hung outside the sealing cylinder 22 on the lower surface of the top wall 20 and has a lower end surface as a base. It is provided with an inner cylinder wall 23 that is close to or abuts on the inner edge of the lower wall portion 6a of the wall 6.
The lower end of the inner circumference of the side peripheral wall 21 is provided with an engaging recess 25 having an enlarged diameter and engaging with the upper surface and the outer circumference of the lid engaging portion 8 of the cap body A.

On the outer periphery of the front side of the side peripheral wall 21, an outer peripheral recess 26 extending from the center to a predetermined range on both sides in the circumferential direction and recessed from above leaving the lower end 21a is formed, and the circumference is formed from the lower end 21a. The knob portion 27 is projected along the direction.
In the portion of the side peripheral wall 21 where the outer peripheral recess 26 is formed, the wall thickness is thinner than the wall thickness of the other portion, and in particular, the engaging recess recessed from the inner peripheral side of the side peripheral wall 21. The portion above the knob portion 27 where the 25 is located is a thin wall portion 21b which is the thinnest.
The outer peripheral recess 26 does not have to be formed on the side peripheral wall 21, and the side peripheral wall 21 above the grip portion 27 is formed to be thin and deformed from the base portion of the grip portion 27 when the grip portion 27 is lifted. It suffices if it is thick.

The knob portion 27 is provided with a sealing locking portion 28 that engages with the sealing member E described later at the time of setting and separates the sealing member E from the cap body A at the time of opening the lid.
The sealing locking portion 28 is vertically provided from the lower surface of the knob portion 27, and is formed in an arc shape with the insertion wall portion 29 so that the inner side surface covers a part of the outer peripheral wall portion 10 of the cap body A at the time of setting. A fitting portion 30 having a wedge-shaped cross section formed in the lower portion of the insertion wall portion 29 is provided.
The fitting portion 30 is formed with an inclined lower surface 30a extending diagonally upward from the lower end, an outer surface 30b extending upward from the inclined lower surface 30a, and a stepped upper surface 30c extending inward from the upper end of the outer surface 30b, and is sealed at the time of setting. Engage with member E.

The sealing member E includes a sealing wall 35 formed in the circumferential direction at a predetermined distance from the outer peripheral surface of the outer peripheral wall portion 10 which is the front side of the mounting portion 5 of the cap body A, and the sealing wall 35 and the outer peripheral wall portion. In the space a formed between the outer peripheral surface of the 10 and the outer peripheral surface, the sealing locking portion 28 is inserted from above when the hinge cap is set (closed).
The sealing wall 35 is provided with side walls 37 facing the outer peripheral wall portion 10 at both ends, and the side walls 37 are connected to the outer peripheral wall portion 10 via breakable weakening portions 36, respectively.
The sealing wall 35 is formed so that the circumferential width of the inner surface thereof is slightly larger than the circumferential width of the insertion wall portion 29 of the sealing locking portion 28, and is set vertically from the upper end of the outer peripheral wall portion 10. It is sometimes formed with a length that engages with the step upper surface 30c of the fitting portion 30 of the sealing locking portion 28.

Next, the usage mode and the action and effect of this example will be described.
The hinge cap of this embodiment is integrally molded in the open state shown in FIG. 2, and then, at the time of setting, the upper lid B is rotated with respect to the cap body A via the hinge C in the closing direction of the upper lid B. The engaging recess 25 of the side peripheral wall 21 and the lid engaging portion 8 of the cap body A are fitted, and the hinge cap is closed.

At the time of setting, the sealing locking portion 28 hanging from the knob portion 27 of the upper lid B is inserted into the space a of the sealing member E from above, and is formed in the fitting portion 30 of the sealing locking portion 28 on the inner surface of the sealing wall 35. The inclined lower surface 30a is brought into contact with each other, and the insertion wall portion 29 is inserted into the space a while the fitting portion 30 slightly pushes and expands the sealing wall 35.
In this embodiment, the slit groove 14 is recessed from the upper end surface of the outer peripheral wall portion 10, and the thickness of the upper wall of the outer peripheral wall portion 10 is thinner than that of the lower portion, so that the slit groove 14 is attached to the container body D. The cap body A before the fitting is slightly deformed when the fitting portion 30 passes through the space a.

Finally, as shown in FIG. 1, the inside of the insertion wall portion 29 of the sealing locking portion 28 is close to the outer peripheral surface of the outer peripheral wall portion 10 of the cap body A, and the outer surface of the insertion wall portion 29 is the sealing wall. Along with contacting or approaching the inner surface of the 35, the step upper surface 30c of the fitting portion 30 engages with the lower end surface of the sealing wall 35, and the closed state is maintained.

The closed hinge cap is attached to the mouth 1 of the container body D filled with the contents by a stopper or the like.
In the container to which the hinge cap of this embodiment is attached, the lower end of the inner cylinder wall 23 of the upper lid B is capped against the impact when the upper lid B is tapped from above and when the container is dropped with the upper lid B down. Since the inner cylinder wall 23 comes into contact with the inner edge of the lower wall portion 6a of the base wall 6 of the main body A, the upper lid B is pushed against the cap main body A by the impact force from the upper lid B, and the side peripheral wall 21 is displaced outward. The sealing cylinder 22 is prevented from being pushed into the dispensing cylinder 7, and the closing and sealing of the hinge cap is stably maintained.

When the container equipped with the hinge cap of this embodiment is used for the first time, first, the grip portion 27 of the upper lid B is lifted upward.
When the knob portion 27 is lifted, the thin wall portion 21b of the side peripheral wall 21 is thinner than the wall thickness of the side peripheral wall 21 of the other portion. Therefore, as shown in FIG. 3, the thin wall portion 21b is thinned from the base side of the knob portion 27. The wall portion 21b is easily deformed, and the knob portion 27 is lifted with the thin wall portion 21b as a fulcrum.

At that time, the sealing locking portion 28 hanging from the lower surface of the knob portion 27 is also lifted so that the lower fitting portion 30 faces outward and upward, and accordingly, the sealing member E that comes into contact with the outer surface of the insertion wall portion 29. The sealing wall 35 is also lifted so that the lower part faces outward and upward.
At this time, since the step upper surface 30c of the fitting portion 30 comes into contact with and is caught by the lower end surface of the sealing wall 35, the engagement between the sealing wall 35 and the insertion wall portion 29 does not come off.
Further, when the sealing wall 35 is lifted, the side walls 37 on both sides connected to the sealing wall 35 are also lifted in conjunction with each other, and a force is applied to the weakened portion 36 connected to the outer peripheral wall portion 10 of the cap body A. , Both weakened portions 36 are broken, and the sealing member E is separated from the cap body A.

After the sealing member E is separated, the knob portion 27 can be easily lifted, and first, the engagement recess 25 of the side peripheral wall 21 near the thin wall portion 21b and the lid engaging portion 8 are fitted. When the upper lid B is further lifted, the engagement recess 25 of the other side peripheral wall 21 and the lid engaging portion 8 are disengaged from the thin wall portion 21b side, and the upper lid B is opened.

In the hinge cap of this embodiment, a thin wall portion 21b is provided on the side peripheral wall 21 of the upper lid B, and when the knob portion 27 is lifted when the lid is opened, the wall of that portion is deformed. Even if the cap body A and the lid engaging portion 8 of the cap body A are firmly fitted, the lid can be opened easily and with a weak force.

As described above, in the hinge cap of the present embodiment, the sealing member E can be separated from the cap body A at the same time as the lid of the upper lid B is opened by a single operation of lifting the knob portion 27 at the time of the first opening of the lid. By visually recognizing the presence or absence of the sealing member E, unauthorized opening can be prevented.

In this embodiment, the sealing wall 35 of the sealing member E is connected to the cap body A on both side walls 37 via the weakening portions 36, and both weakened portions 36 are opened by opening the first hinge cap. Is broken and the sealing member E is separated from the cap body A. However, one of the side walls 37 on both sides is a breakable weakening portion 36, and the other is connected to the outer peripheral wall portion 10 in an unbreakable state. In this case, one end side of the sealing member E remains on the outer peripheral wall portion 10 of the cap body A at the first opening, but the weakened portion 36 on one side is broken and the other end of the sealing member E. Since the side is separated, it is possible to visually confirm this state and confirm unauthorized opening.
Further, even if the weakening portions 36 are provided on both of the side walls 37, only one of the weakening portions 36 may be broken at the first opening of the lid, but at least one of both ends of the sealing member E is separated. It can be visually recognized to prevent unauthorized opening.

Next, a second embodiment in which the configurations of the sealing member and the cap body in the first embodiment are changed will be described.
Hereinafter, the same components as those in the first embodiment will be designated by the same reference numerals, and only the different components will be designated by different reference numerals, and the differences will be mainly described.

In FIGS. 4 and 5, Aa is a cap body to be plugged into the container body Da, Ba is an upper lid connected to the cap body Aa via a hinge C, and Ea is detachably formed on the front side of the cap body Aa. It is a sealing member that engages with the upper lid Ba.

As shown in FIG. 4, an upper fitting protrusion 41 and a neck ring 42 below the fitting protrusion 41 are formed on the outer periphery of the mouth portion 40 of the container body Da.

The cap body Aa has a mounting portion 45 mounted on the mouth portion 40 of the container body Da, a base wall 46 extending inward from the upper end of the inner edge of the mounting portion 45 and closing the opening of the mouth portion 40, and a base wall. It includes a pouring cylinder 47 that is erected from around the spout that penetrates the 46, and a sealing member Ea that is detachably connected to the front side of the mounting portion 45.
The mounting portion 45 is connected to the outer edge of the base wall 46, and has an annular lid engaging portion 48 that engages with the upper lid Ba, an inner cylinder 49 that is vertically suspended from the inner peripheral edge of the lid engaging portion 48, and a lid engagement. It is composed of an outer peripheral wall portion 50 that is vertically hung from the outer peripheral edge of the joint portion 48 and has a hinge C continuously provided at a part of the upper end portion.

In the outer peripheral wall portion 50, a sealing member Ea is continuously provided in the upper outer periphery on the front side within a predetermined range, and the engaging protrusion 51 that engages with the fitting protrusion 41 of the mouth portion 40 of the container body Da at the lower part of the inner circumference. Is provided, and a thin wall 52 is vertically installed at the lower end.
When the cap body Aa is attached to the container body Da, the thin wall 52 has a height at which the lower end of the thin wall 52 abuts or approaches so that there is no gap between the thin wall 52 and the upper surface of the neck ring 42 of the container body Da. In the circumferential direction of the thin wall 52, a plurality of thinnest portions 53 formed thinner than the thickness of the thin wall 52 are arranged at predetermined intervals.

As shown in FIGS. 4 and 5, the upper lid Ba is vertically provided from the top wall 55 and the peripheral edge of the top wall 55, and the side peripheral wall 56 and the top wall 55 in which the hinge C is continuously provided at a predetermined position at the lower end of the outer circumference. A sealing cylinder 57 that is hung from the lower surface and whose outer circumference is inserted into the inner circumference of the ejection cylinder 47 of the cap body Aa when the lid is closed, and a sealing cylinder 57 that is hung outside the sealing cylinder 57 on the lower surface of the top wall 55 and is based on the lower end surface. It includes a middle cylinder wall 58 that is close to or abuts on the upper surface of the wall 46.
The lower end of the inner circumference of the side peripheral wall 56 is provided with an engaging recess 59 having an enlarged diameter and engaging with the upper surface and the outer circumference of the lid engaging portion 48 of the cap body Aa.

An outer peripheral recess 60 extending in the circumferential direction from the center to a predetermined range on both sides is formed on the outer periphery of the side peripheral wall 56 on the front surface side, and a knob portion 61 is projected from the outer peripheral lower end portion of the outer peripheral recess 60.
The grip portion 61 has a deformed recess 62 recessed from the upper surface in the base portion, and the grip portion 61 of the portion is a thin-walled deformed portion 61a.
In the portion where the outer peripheral recess 60 of the side peripheral wall 56 is formed, the wall thickness is thinner than the wall thickness of the other portion, and in particular, the engaging recess recessed from the inner peripheral side of the side peripheral wall 56. The place where 59 is located is the thin wall portion 56a which is the thinnest.
On the lower surface of the knob portion 61, a sealing locking portion 28 is provided which engages with the sealing member Ea described later at the time of setting and separates the sealing member Ea from the cap body Aa at the time of opening the lid.

The sealing member Ea includes a sealing wall 65 formed in the circumferential direction at a predetermined distance from the outer peripheral surface of the outer peripheral wall portion 50 which is the front side of the mounting portion 45 of the cap body Aa, and the sealing wall 65 and the outer peripheral wall portion. In the space a formed between the outer peripheral surface of the 50 and the outer peripheral surface of the 50, the sealing locking portion 28 of the knob portion 61 is inserted from above when the hinge cap is set (closed).
Further, the sealing member Ea is continuously provided at the upper end of the outer periphery of the sealing wall 65, and a covering portion 66 covering the knob portion 61 is provided.
The covering portion 66 is composed of a bottom wall portion 67 that covers the outer lower surface of the sealing locking portion 28 of the knob portion 61, and a side wall portion 68 that is erected on the outer edge of the bottom wall portion 67 and covers the outer surface of the knob portion 61. Has been done.
The sealing wall 65 is provided with side walls 70 facing the outer peripheral wall portion 50 at both ends, and as shown in FIG. 5A, the side wall 70 is connected to the outer peripheral wall portion 50 via a breakable weakening portion 69, respectively. It is set up.

Next, the usage mode and the action and effect of this example will be described.
In the hinge cap of this embodiment, when the hinge cap is closed, the sealing locking portion 28 of the grip portion 61 of the upper lid Ba is inserted from above into the space a of the sealing member Ea, and the hinge cap engages with the sealing wall 65. The covering portion 66 covers a portion other than the upper surface of the knob portion 61.
The closed hinge cap is attached to the mouth 40 of the container body Da filled with the contents by a stopper or the like.

In the hinge cap of this embodiment, the covering portion 66 of the sealing member Ea covers a portion other than the upper surface of the knob portion 61. Therefore, when the container is dropped, the floor or the like may collide with the lower surface and the tip portion of the knob portion 61 to open the lid. Can be prevented.

In the container to which the hinge cap of this embodiment is attached, the thin wall 52 provided at the lower end of the outer peripheral wall portion 50 of the cap body Aa does not have a gap between the container body Da and the upper surface of the neck ring 42 of the container body Da. Therefore, if the hinge cap is forcibly removed from the container body Da using a metal fitting or the like, the thinnest wall 52 of the outer peripheral wall portion 50 cannot withstand the deformation, and the thinnest portion 53 is broken and a mark is left. Since it remains, it is possible to prevent unauthorized opening due to mischief or the like.

When the container to which the hinge cap of this embodiment is attached is used for the first time, first, a finger or the like is put on the lower surface of the bottom wall portion 67 of the covering portion 66 of the sealing member Ea, and the covering portion 66 is lifted upward.
When the bottom wall portion 67 is lifted, the grip portion 61 of the upper lid Ba that abuts on the upper surface is also lifted from below.
In the grip portion 61, the thin-walled deformed portion 61a formed by the deformed recess 62 recessed in the base portion is easily deformed. Therefore, as shown in FIG. 6A, the grip portion 61 has a thin wall with respect to the lifting of the grip portion 61. The deformed portion 61a serves as a fulcrum, and the tip end side of the knob portion 61 is lifted upward together with the covering portion 66.

When the knob portion 61 is lifted upward from the tip side together with the covering portion 66, the sealing locking portion 28 that is continuously provided is also lifted so that the lower portion faces outward and upward, and accordingly, the sealing that engages with the sealing locking portion 28. The sealing wall 65 of the member Ea is also lifted so that the lower part faces outward and upward.
Further, when the sealing wall 65 is lifted, the side walls 70 on both sides connected to the sealing wall 65 are also lifted in conjunction with each other, and the weakened portion 69 connected to the outer peripheral wall portion 50 of the cap body Aa is broken from below. , The sealing member Ea is separated from the cap body Aa.
The sealing member Ea is lifted so that the lower part faces outward and upward as a whole by lifting the covering portion 66 and lifting the sealing wall 65 by the sealing locking portion 28, and is separated from the outer peripheral wall portion 50 of the cap body Aa. Therefore, the sealing member Ea can be reliably separated from the cap body Aa.

After the sealing member Ea is separated, when the knob portion 61 is further lifted together with the covering portion 66, the thin wall portion 56a of the side peripheral wall 56 is also deformed and lifted with the thin wall portion 56a as a fulcrum. The engagement recess 59 of the nearby side peripheral wall 56 and the lid engaging portion 48 are disengaged, and then the engaging recess 59 of the other side peripheral wall 56 and the lid engaging portion 48 are fitted. Is removed from the thin wall portion 56a side, and the upper lid Ba is opened as shown in FIG. 6 (b).
Since the wall of the thin wall portion 56a of the side peripheral wall 56 of the upper lid Ba is also deformed when the lid is opened, the engagement recess 59 of the upper lid Ba and the lid engaging portion 48 of the cap body Aa can be fitted. Even if it is strong, the lid can be opened easily and with a weak force.
Further, since the sealing member Ea is separated from the cap body Aa after the lid is opened, it can be easily removed from the grip portion 61 and the sealing locking portion 28 of the upper lid Ba.

As described above, in the hinge cap of the present embodiment, the sealing member Ea is first separated from the cap body Aa by lifting the covering portion 66 of the sealing member Ea at the time of the first opening, and then the upper lid Ba is opened. Therefore, after opening the lid, the sealing member Ea is always separated, and unauthorized opening can be prevented by visually recognizing the presence or absence of the sealing member Ea.

In the present invention, a knob portion is provided on the front side of the side peripheral wall of the upper lid of the hinge cap, a thin wall portion is provided on a part of the side peripheral wall above the knob portion, and further, it can be separated on the front side of the mounting portion of the cap body. By connecting the various sealing members, when the hinge cap is opened for the first time, the sealing member can be separated from the cap body and the upper lid can be opened at the same time by only one operation of lifting the knob or the sealing member covering the knob. Since the lid can be opened and unauthorized opening can be visually recognized, it can be widely used as a hinge cap for various containers.

A, Aa Cap body B, Ba Top lid C Hinge D, Da Container body E, Ea Sealing member a Space 1,40 Port 2,41 Fitting protrusion 5,45 Mounting part 6,46 Base wall 6a Lower wall part 6b Step 6c Upper wall 7,47 Injection cylinder 8,48 Lid engagement part 9,49 Inner cylinder 10,50 Outer wall part 11,51 Engagement protrusion 13 Outer cut part 14 Slit groove 20, 55 Top wall 21 , 56 Side peripheral wall 21a Lower end 21b, 56a Thin wall 22, 57 Sealed cylinder 23, 58 Middle cylinder wall 25, 59 Engagement recess 26, 60 Outer peripheral recess 27, 61 Knob 28 Sealing locking 29 Insertion wall 30 Fitting part 30a Inclined lower surface 30b Outer side surface 30c Step upper surface 35, 65 Sealed wall 36, 69 Weakened part 37, 70 Side wall 42 Neck ring 52 Thin wall
53 Thinnest part 61a Thin-walled deformed part 62 Deformed recess 66 Covered part 67 Bottom wall part 68 Side wall part

Claims (8)

A hinge cap consisting of a cap body attached to the mouth of the container body and an upper lid connected to the cap body via a hinge.
The cap body includes a mounting portion that is mounted on the mouth of the container body and a sealing member that is detachably connected to the opposite side of the hinge of the mounting portion.
The upper lid is formed above the top wall, the side peripheral wall suspended from the peripheral edge of the top wall, the knob portion protruding from the side opposite to the hinge of the side peripheral wall, and the knob portion of the side peripheral wall. It has a thin wall part that deforms the knob part from the base when it is lifted.
A hinge cap characterized in that the knob portion is provided with a sealing locking portion that engages with a sealing member when the lid is closed and separates the sealing member from the cap body when the lid is opened. The sealing member includes a sealing wall formed in the circumferential direction at a predetermined distance from the outer peripheral surface of the mounting portion.
The hinge cap according to claim 1, wherein the sealing locking portion is inserted from above into a space formed between the sealing wall and the outer peripheral surface of the mounting portion when the lid is closed. The sealing wall has side walls at both ends facing the mounting part.
The side wall has a breakable weakening part, at least one of which is connected to the mounting part.
2. The sealing locking portion includes an insertion wall portion vertically hung from the knob portion, and a fitting portion formed below the insertion wall portion and engaged with the lower end surface of the sealing wall. The hinge cap described in. The mounting portion includes a lid engaging portion that engages with the upper lid and an outer peripheral wall portion that is vertically hung from the outer peripheral edge of the lid engaging portion.
The sealing member is continuously provided on the outer peripheral wall portion via a breakable weakening portion.
The hinge cap according to any one of claims 1 to 3, wherein the upper lid is provided with an engaging recess that engages with the lid engaging portion at the lower end of the inner circumference of the side peripheral wall. Claim 1 is characterized in that the upper lid is provided with an outer peripheral recess extending from the center to a predetermined position on both sides in the circumferential direction on the outer periphery opposite to the hinge of the side peripheral wall and recessed from above leaving the lower end portion. The hinge cap according to any one of 4 to 4. The hinge cap according to any one of claims 1 to 5, wherein the sealing member includes a covering portion that covers the knob portion. The hinge cap according to claim 6, wherein the covering portion includes a bottom wall portion that covers the lower surface outside the sealing locking portion of the knob portion, and a side wall portion that covers the outer surface of the knob portion. The hinge cap according to any one of claims 1 to 7, wherein the knob portion is provided with a deformed recess recessed from the upper surface in the base portion.

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