JP7374785B2 - hinge cap - Google Patents

Description

The present invention relates to a hinge cap that is attached to a container and used, and particularly to a hinge cap that has an opening portion that breaks a weakened portion and moves to the top lid side when the lid is opened for the first time.

Conventionally, in hinged caps that consist of a cap body that is attached to a container and a top lid that is connected to the cap body via a hinge, a pull ring or the like is attached to the intended opening of the partition wall of the cap body in order to ensure the sealing performance of the container. A removed portion was provided.
However, in order to open the removal part, it is necessary to open the top lid and then pull up a pull ring to open the removal part, which is time-consuming and difficult for users with weak strength to open. There was a problem.

Therefore, if the removal part as the planned opening part is eliminated, there will be problems with the sealing performance, such as the liquid content easily entering the hinge cap. A hinge that engages the mating wall 13 with a hanging piece 6 hanging from the upper lid 1, and pulls up the engaging wall 13 along with the opening of the upper lid 1 to break the cutting part 11 (weakened part) and open the bottle. Caps are conventionally known (for example, see Patent Document 1).

Japanese Patent Application Publication No. 10-338253

However, in the hinge cap described in Patent Document 1, if the container filled with liquid is transported and falls upside down, an impact is applied to the engagement wall and the cut portion (weakened portion) is broken. Therefore, there was a problem in that the sealing performance of the hinge cap was impaired.

The present invention aims to solve the above-mentioned problems, and aims to prevent the weakened portion from breaking when a container filled with liquid is dropped upside down during transportation.

In order to solve the above-mentioned problems, the present invention provides a hinged cap consisting of a cap body attached to the mouth of a container and an upper lid connected to the cap body via a hinge. The main body includes a mounting part that is attached to the mouth of the container, a base wall that extends inward of the mounting part, a spout tube that stands upright inside the base wall, and an inner circumference of the spout tube. It includes a continuous partition wall, and an opening portion defined by a breakable weakened portion in the partition wall and serving as a planned opening portion. It is provided with a pull-up part that is erected on the upper surface of the wall and pulled up to the upper lid when the bottle is opened, and the upper lid has a top wall, a side peripheral wall that is suspended from the periphery of the top wall, and a lifting part that is suspended from the lower surface of the top wall. The dispensing barrel is provided with a stepped portion on the inner circumferential side, with which the lower end of the sealing barrel comes into contact when the lid is closed, and the base wall is provided with a deformable thin wall portion. A configuration will be adopted.

A specific embodiment of the hinge cap is characterized in that the thin wall portion of the base wall is inclined upward from the mounting portion toward the pouring tube, and the upper lid has a thin wall portion on the outer top wall of the seal tube. The thin part of the base wall is thinner than the thin part of the top cover and thicker than the weakened part, and the pulling part has a base wall with a hinge part on the opposite side of the hinge part. A structure is adopted in which the cap is erected from inside the weakened portion on the opposite side, and can be pulled up by engaging with the top cap when opening the cap.

As a further specific embodiment of the hinge cap, the upper lid is provided with an engaging part on the inside of the seal cylinder, and the pull-up part is provided with a protruding part on the upper part, and the protruding part is engaged with the engaging part when the lid is closed. A configuration characterized by this is adopted.

The hinge cap of the present invention has the above-mentioned structure, even if the container filled with the liquid is dropped upside down, the lower end of the seal tube is in contact with the step of the spout tube, so that the weakened part can be removed. The load on the hinge cap is reduced, and the thin portion of the base wall of the cap body is deformed to protect the weakened portion, so that the hermeticity of the hinge cap can be ensured.

FIG. 3 is a side cross-sectional view showing a state in which the hinge cap of the example is attached to a container and the lid is closed. FIG. 2 is an enlarged view of the main part of FIG. 1. FIG. It is a figure which shows the lid open state of the hinge cap of an Example immediately after manufacture, (a) is a top view, (b) is a side sectional view.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the hinge cap of the present invention will be described with reference to the drawings.

In FIG. 1, A is a container, B is a cap body, C is a hinge, and D is an upper lid attached to the cap body B via the hinge C so as to be openable and closable.
The container A has an opening 1 at the top, and a fitting protrusion 2 is provided on the outer peripheral surface of the opening 1.

As shown in FIGS. 1 and 3, the cap body B includes a mounting part 3 to be mounted on the mouth part 1 of the container A, a base wall 4 extending inward from the upper end of the inner edge of the mounting part 3, and a base. The pouring tube 5 is provided upright on the edge of the wall 4.

The mounting part 3 includes a ring-shaped lid engaging part 7 that is provided with a locking protrusion 6 on its periphery and that engages with the upper lid D, and an inner cylinder 8 that is vertically provided from the inner peripheral side of the lid engaging part 7. It is composed of an outer peripheral wall part 9 that is vertically provided from the outer peripheral side of the lid engaging part 7.
The outer circumferential wall portion 9 is provided with an engaging protrusion 10 for engaging with the fitting protrusion 2 of the container A at the lower part of the inner circumference.

A deformable thin wall 4a is formed on the base wall 4 between the mounting portion 3 and the spouting tube 5, and in this embodiment, an inclination is provided to make the spouting tube 5 side higher.
A partition 20 is provided in the spout cylinder 5 to seal the mouth 1 of the container A, and the partition 20 has an opening defined by a breakable weakened portion 21 in order to open the spout during use. A section 22 is provided.
Further, as shown in FIG. 2, a stepped portion 11 is provided on the inner peripheral side of the spouting tube 5, and is provided so that a lower end 33a of a sealing tube 33, which will be described later, comes into contact with it when the lid is closed. .

The opening part 22 includes a bottom wall 23 connected to the partition wall 20 via the weakened part 21, and a pull-up part 24 erected from the inside of the weakened part 21 on the upper surface of the bottom wall 23 on the opposite side from the hinge C. has been done.
In this embodiment, as shown in FIG. 3(a), the pulling part 24 is cylindrical, and the side opposite to the hinge C is round, and the side opposite to the hinge C has a portion near the weakened part 21 on the opposite side to the hinge C. It has an angular shape with an apex, and a reinforcing rib 26 is provided on the hinge C side of the pulling part 24, thereby preventing the weakened part 21 on the opposite side from the hinge C from breaking when opening the bottle. make it easier.
Note that the pulling part 24 may have any shape and structure as long as it can be broken when lifted.

Further, in this embodiment, as shown in FIG. 3(b), a mountain-shaped protrusion 28 is provided at the upper part of the pulling part 24.
The protruding part 28 has a trapezoidal shape with a widened lower part, and the upper part on the side of the hinge C has no slope and stands almost upright.
Although the upper surface of the protrusion 28 is flat in this embodiment, it may be rounded.

As shown in FIGS. 1 and 3, the top lid D is rotatably attached to the upper end of the outer periphery of the outer periphery wall portion 9 of the cap body B via a hinge C, and is attached to the top wall 30 and the top wall 30. It is provided with a side peripheral wall 31 that is vertically provided from the peripheral edge of the cylinder.
A seal cylinder 33 is provided vertically from the lower surface of the top wall 30, and as shown in FIG. It is set in.
The lower end 33a of the seal cylinder 33 contacts the stepped portion 11, which reduces the load on the weakened portion 21 when falling upside down, and also prevents the thin portion 4a of the base wall 4 from deforming and causing the weakened portion 21 to break. can be prevented.
In this embodiment, the outer circumferential surface of the lower end 33a of the seal cylinder 33 is in contact with the vertical surface of the step 11, and the lower surface of the lower end 33a is in contact with the lateral surface of the step 11. It is preferable that they be in contact with each other, but as long as they are in contact with one of them, the other may be adjacent.

In this embodiment, a deformable thin wall portion 30a is formed on the outer top wall 30 of the seal cylinder 33 of the top lid D, and the thin wall portion 30a deforms to reduce the impact when the top lid D falls upside down. I can do it.
In this embodiment, the thickness of the thin portion 30a of the upper lid D is approximately 0.5 mm, the thickness of the weakened portion 21 is 0.18 to 0.2 mm, and the thickness of the thin portion 4a of the base wall 4 is approximately 0.5 mm. The thickness is 0.3 to 0.5 mm.
The thickness of the thin portion 4a of the base wall 4 is preferably thinner than the thin portion 30a of the upper lid D and thicker than the weakened portion 21.

Further, the top wall 30 is provided with an engagement portion 34 inside the seal cylinder 33, and an engagement hole 35 that communicates with the inner circumferential surface of the engagement portion 34 is opened in the upper part of the engagement portion 34. ing.
As shown in FIG. 1, the engaging portion 34 has an inner circumferential surface that is inclined in accordance with the lower outer circumferential surface of the protruding portion 28.
Further, the upper surface of the engaging portion 34 is formed to become a locking portion 36 and the lower surface of the engaging hole portion 35 .
In this embodiment, when the lid is closed, the upper part of the protrusion 28 reaches the engagement hole 35, and as shown in FIG. It is expanded to fill the matching hole 35, and the protrusion 28 is engaged by the locking part 36 on the upper surface of the engagement part 34.

In this embodiment, a protrusion 28 is provided above the pulling part 24, and an engagement hole 35 is provided in the upper lid D, and the upper part of the protrusion 28 is treated to prevent it from falling out when the lid is closed. However, any method of engagement between the pulling part 24 and the engaging part 34 may be used, and the engaging hole part 35 of the upper lid D may not be provided. I do not care.

An engaging recess 38 that engages with the locking protrusion 6 of the lid engaging portion 7 of the cap body B is provided around the lower end of the side peripheral wall 31 on the inner peripheral side.
An arcuate handle portion 39 extends in the circumferential direction on the outer periphery of the side peripheral wall 31 on the opposite side to the hinge C, and a finger rest portion 40 is provided on the lower surface of the center of the handle portion 39.

Although not shown, the hinge cap of this embodiment is provided with a shrink label, a sealing member, etc. between the cap body B and the top lid D in order to prevent unauthorized opening before use.
Further, although not shown, a separate disposal mechanism may be provided to enable separate disposal of the hinge cap from the container A, such as by providing thin weakened portions on the longitudinal tear line and the circumferential tear line.

Next, the usage mode and effects of this embodiment will be explained.
The hinge cap of this embodiment manufactured by integral molding is obtained in an open state, as shown in FIG. 3, and is brought into a closed state by rotating the top cover D via the hinge C.
At this time, the upper protrusion 28 of the pulling part 24 is small at the top and has no slope on the hinge C side, so it easily enters the engagement part 34 and the upper part fits into the engagement hole 35. At the same time, the lower outer periphery of the protruding portion 28 comes into contact with the inner periphery of the engaging portion 34 .

Further, the lower end 33a of the seal tube 33 abuts against the stepped portion 11 of the spout tube 5, and the lid engaging portion 7 of the cap body B and the engaging recess 38 of the upper lid D fit together.
Furthermore, in this embodiment, in the closed state, the upper part of the protruding part 28 is treated to prevent it from coming off by melting, etc., and the protruding part 28 is engaged with the engaging part 34, resulting in the closed state shown in FIG. 1. .
Next, the closed hinge cap is plugged and attached to the container A filled with the liquid.

In the hinge cap of the present invention, even if the container A filled with liquid is transported and falls upside down, the spout tube 5 is provided with a stepped portion 11, and the lower end of the seal tube 33 is 33a is in contact with the weakened portion 21, so that stress does not reach the weakened portion 21, and since the base wall 4 is formed with a deformable thin portion 4a, the weakened portion 21 is deformed by the thin portion 4a. can prevent breakage.
Further, the thin wall portion 30a of the top wall 30 of the upper lid D deforms when falling upside down to reduce the impact.

When using the hinge cap of the present invention for the first time, by opening the lid, the weakened portion 21 provided in the partition wall 20 of the cap body B can be broken and the cap can be opened.
First, when you put your finger on the finger hook 40 of the top lid D and lift the handle 39, the bottom wall 23 on the opposite side of the hinge C is lifted together with the pulling part 24 engaged with the top lid D. The weakened part 21 on the opposite side begins to break, and by further lifting the top lid D, the weakened part 21 breaks in the direction of the hinge C. Finally, the weakened part 21 near the hinge C breaks, and the opening part 22 is removed from the partition wall 20, and the opening portion 22 becomes an opening, allowing the liquid inside the container A to be poured out.

After using the content liquid, by closing the upper lid D on the cap body B again, the lower end 33a of the seal cylinder 33 of the upper lid D comes into contact with the stepped part 11 of the spouting cylinder 5, and the lid holder of the cap body B The mating portion 7 and the engagement recess 38 of the top lid D fit together to re-seal the inside of the hinge cap, and the top lid D can be repeatedly opened and closed for use.

In this embodiment, the hinge cap is attached to the container A by capping, but it may also be attached by screwing.
In addition, although the weakened portion 21 has the same thickness on both the side opposite to the hinge C and the side opposite to the hinge C, it may be made thinner on the side opposite to the hinge C so that it is easier to break.

The hinge cap of the present invention can prevent the weakened portion from breaking even if the container filled with liquid is turned upside down during transportation.
Since airtightness as a hinge cap is ensured, it can be widely applied as a hinge cap for containers containing liquids that require airtightness.

A Container B Cap body C Hinge D Upper lid 1 Mouth 2 Fitting protrusion 3 Mounting part 4 Base wall 4a Thin wall part 5 Spout tube 6 Locking protrusion 7 Lid engaging part 8 Inner cylinder 9 Outer peripheral wall 10 Engagement Projection 11 Step 20 Partition 21 Weakened section 22 Opening section 23 Bottom wall 24 Pull-up section 26 Reinforcing rib 28 Projection 30 Top wall 30a Thin section 31 Side peripheral wall 33 Seal tube 33a Lower end 34 Engagement section 35 Engagement hole section 36 Locking part 38 Engagement recess 39 Handle part 40 Finger rest part

Claims (5)

A hinged cap consisting of a cap body attached to the mouth of a container and an upper lid connected to the cap body via a hinge,
The cap body includes a mounting part that is attached to the mouth of the container, a base wall that extends inward of the mounting part, a spout tube that stands upright inside the base wall, and an inner periphery of the spout tube. comprising a partition wall connected to the partition wall, and an opening portion defined by a breakable weakened portion of the partition wall and serving as a scheduled opening portion,
The cap opening part includes a bottom wall connected to the partition wall through a weakened part, and a pulling part that is erected on the top surface of the bottom wall and is pulled up to the top lid when the cap is opened .
The upper lid includes a top wall, a side peripheral wall hanging from the periphery of the top wall, and a seal cylinder hanging from the lower surface of the top wall,
The spout tube is provided with a step on the inner circumferential side, which the lower end of the seal tube comes into contact with when the lid is closed.
A hinge cap characterized in that a base wall is provided with a deformable thin wall portion. The hinge cap according to claim 1, wherein the thin wall portion of the base wall is inclined upward from the mounting portion toward the pouring tube. The upper lid has a thin wall part on the outer top wall of the seal cylinder,
The hinge cap according to claim 1 or 2, wherein the thin portion of the base wall is thinner than the thin portion of the upper lid and thicker than the weakened portion. Claims 1 to 3, characterized in that the pulling part is erected on the bottom wall on the opposite side of the hinge from inside the weakened part on the opposite side of the hinge, and is capable of being pulled up by engaging with the top lid when opening the bottle. A hinge cap as described in any of the above. The upper lid has an engaging part inside the seal cylinder,
The pulling part has a protrusion at the top,
The hinge cap according to any one of claims 1 to 4, wherein the protruding portion is engaged with the engaging portion when the lid is closed.

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