JP2022039039A - Hinge cap - Google Patents

Abstract

To provide a hinge cap capable of concentrating stress on a thin-walled weakened part located on a front face side when pulling up and opening an upper lid, and stably holding a shift plug after opening.SOLUTION: In a hinge cap in which a cap body A and an upper lid B are connected to each other by a hinge C, the cap body A comprises a partition wall 5 for sealing a mouth part 1 of a container body D, a spouting cylinder 6 standing up from the partition wall 5, a shift plug 10 demarcated in the partition wall 5 within the spouting cylinder 6 by a breakable thin-walled weakened part 8, and a pull-up part 12 standing up from an opposite side of the hinge C of the shift plug 10. The upper lid B includes a top wall 30, a sealing cylinder 32 drooped from an undersurface of the top wall 30 and sealing the spouting cylinder 6, and an attachment part 33 disposed inside the sealing cylinder 32 and engaging with the pull-up part 12. The shift plug 10 includes a holding upright wall 13 standing up from the hinge C side. The upper lid B includes a holding receiving wall 34 drooped from the undersurface of the top wall 30 and engaging or contacting with the holding upright wall 13.SELECTED DRAWING: Figure 1

Description

The present invention relates to a hinge cap attached to a container body and used, and particularly to a hinge cap having a transition plug that breaks a thin-walled weakened portion and shifts to the upper lid side at the first opening of the lid.

Conventionally, in a hinge cap consisting of a cap body attached to the container body and an upper lid connected to the cap body via a hinge, a spout is opened in the partition wall of the cap body in order to ensure the sealing property of the container body. As a planned portion, a breakable thin-walled weakened portion was defined to form an opening portion provided with a pull ring or the like.
However, in order to open the opening part, it is necessary to pull up the pull ring or the like to remove the opening part after opening the upper lid, which is troublesome and difficult for a weak user to open. There was a problem.

Therefore, it is conceivable to eliminate the opening part and open the spout in advance, but in this case, since there is a problem in the sealing property of the container body, the pull ring is omitted and the opening part is used as the opening part. A hinge that engages the engaging wall erected on the stopper with the hanging piece suspended from the upper lid, pulls up the transition plug together with the engaging wall together with the opening of the upper lid, breaks the thin-walled weakened part, and opens the seal. Caps have been conventionally known (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 10-338253

However, in the hinge cap described in Patent Document 1, the entire circumference of the engaging wall erected on the transition plug is pulled up by lifting the upper lid at the time of opening, so that a large force is applied when the thin-walled weakened portion is started to break. There was a problem that it required.

Therefore, when opening, in order to concentrate stress on the front side (opposite to the hinge) of the thin-walled weakened part, when the pull-up wall that engages with the upper lid and is pulled up is erected on the opposite side of the hinge of the transition plug. After opening, a space is created between the transition plug on the hinge side and the top wall of the top lid, and when the container containing the content liquid is laid down or shaken greatly when the lid is closed, it is pushed by the content liquid. The transition plug on the hinge side is deformed (floating, etc.), and the content liquid enters the space between the transition plug and the partition wall and the top wall from the thinned weakened part after breakage, and collects in the space. At that time, there was a problem that the content liquid accumulated in the space drips and pollutes the inside and outside of the container.

An object of the present invention is to solve the above-mentioned problems, and when the upper lid is lifted and opened, stress is concentrated on the thin-walled weakened portion on the front side (opposite to the hinge), and the transition plug after opening is stably held. It is intended to provide a hinge cap that can be.

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 cap body consists of a partition that closes the mouth of the container body, a dispensing tube that stands on the partition, a transition plug defined by a breakable thin-walled weakened part on the partition in the dispensing tube, and a transition plug. The hinge is provided with a pull-up portion erected from the opposite side, and the top lid is provided on the top wall, a sealing cylinder suspended from the lower surface of the top wall, and a sealing cylinder for sealing the pouring cylinder, and the inside of the sealing cylinder. The transition plug is provided with a holding erection wall erected from the hinge side, and the top lid is erected from the underside of the top wall and engages or hits the holding erection wall. A configuration characterized by having a holding wall in contact with the wall is adopted.

As a specific embodiment of the hinge cap, the holding standing wall is configured to be erected along the inside of the thin-walled weakened portion, and the holding receiving wall is vertically installed in the range where the holding standing wall is erected. The top lid is suspended from the lower surface of the top wall and is provided with a contact rib that can come into contact with the holding standing wall, and the transition plug is thinned and weakened. A configuration characterized by having a peripheral wall provided around the portion is adopted.

By adopting the above configuration, the hinge cap of the present invention concentrates stress on the side opposite to the hinge of the thin-walled weakened portion when the upper lid is lifted at the time of opening, prompting the start of breakage of the thin-walled weakened portion, and easily. Since the container can be opened and the transition plug on the hinge side is stably held after opening, it is possible to prevent the inside and outside of the container from being contaminated by the content liquid.

It is a side sectional view which shows the state before opening which attached the hinge cap which is an Example of this invention to a container body. It is a figure which shows the opening state immediately after manufacturing of the hinge cap which is an Example of this invention, (a) is a top view, (b) is a side sectional view. It is a bottom view which shows the opening state of the hinge cap which is an Example of this invention. It is a figure which shows the closed state after opening of the hinge cap which is an Example of this invention, (a) is a side sectional view, (b) is an enlarged view of the main part of (a).

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

In FIG. 1, A is a cap body attached to the container body D, and B is an upper lid that opens and closes by connecting the cap body A with a hinge C.
An engaging ridge 2 is provided on the outer periphery of the mouth portion 1 of the container body D.

As shown in FIGS. 1 to 3, the cap body A is attached to the partition wall 5 that closes the mouth portion 1 of the container body D, the dispensing cylinder 6 that is erected from the upper surface of the partition wall 5, and the mouth portion 1. , It is composed of a mounting portion 7 having a partition wall 5 formed inward.

The partition wall 5 is provided with a transition plug 10 defined by a breakable thin-walled weakened portion 8 on the inner peripheral side of the pouring cylinder 6 in order to open the spout at the time of use.
The transition plug 10 includes a bottom wall 11 connected to the partition wall 5 via a thinning weakening portion 8, and a substantially cylindrical pull-up portion 12 is provided on the upper surface of the bottom wall 11 on the front side (opposite to the hinge C). It is erected, and a holding erection wall 13 is erected along the inside of the thin-walled weakened portion 8 on the hinge C side.

In this embodiment, as shown in FIG. 2A, the shape of the tip portion 11a of the bottom wall 11 on the front side has a sharp shape so that the thin-walled weakened portion 8 can be easily broken. Similarly, the front side of the pulling upper portion 12 is formed in a sharp shape.
Further, the holding standing wall 13 is provided from the back surface side to the vicinity of the pulling upper portion 12, but the holding standing wall 13 is at least the bottom wall so as to suppress deformation (lifting, etc.) of the rear end portion 11b of the bottom wall 11. It suffices if it is provided around the rear end portion 11b of 11.

Further, on the hinge C side of the pulling upper portion 12, a reinforcing rib 14 is provided from the upper portion toward the upper surface of the bottom wall 11.
The shape of the reinforcing rib 14 may be any shape as long as it can reinforce the hinge C side of the pulling upper portion 12, and may be a triangular shape having a wide bottom wall 11 side.

In this embodiment, the upper surface of the pulling upper portion 12 is provided with a mountain-shaped locking protrusion 16 upward via the step portion 15 so as to cover the pulling upper portion 12.
The locking protrusion 16 has a mountain shape with a thick lower portion and a narrower mountain shape toward the upper portion, and the front side has a gentler inclination than the hinge C side.
The upper surface of the locking protrusion 16 is flat in this embodiment, but may be rounded.
Further, the pulling upper portion 12 has a recess 17 formed on the lower surface thereof and is hollow, but it may be solid.
Further, in the bottom wall 11, a peripheral wall 18 is formed on the outer peripheral side of the holding vertical wall 13 so as to surround the entire circumference of the thinning weakening portion 8, and the peripheral wall 18 has a bank shape lower than the height of the holding vertical wall 13. There is.

The mounting portion 7 is an inner cylinder 20 that is vertically suspended from the outer peripheral edge of the partition wall 5 and whose outer periphery is inserted into the inner circumference of the mouth portion 1 of the container body D, and an outer cylinder whose inner circumference engages with the outer circumference of the mouth portion 1. A 21 and an annular lid engaging portion 22 connected at the upper ends of the inner cylinder 20 and the outer cylinder 21 are provided, and an outwardly projecting bulging portion 23 is provided on the upper portion of the lid engaging portion 22. Has been done.
On the inner circumference of the outer cylinder 21, an engaging protrusion 24 that engages with the engaging ridge 2 provided on the outer periphery of the mouth 1 is provided.

As shown in FIG. 2, a substantially V-shaped outer peripheral cut portion 25 is cut from above on the outer peripheral surface in the vicinity of either the left or right side of the hinge C of the outer cylinder 21, and the inner circumference of the outer peripheral cut portion 25 is cut. The slit groove 26 is recessed from above so as to extend in a predetermined range in the circumferential direction of the back surface side (hinge C side) starting from a position separated by a thin portion on the upper side.
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 25 becomes a vertical tear line, the slit groove 26 becomes a circumferential tear line, and the outer cylinder 21 has an outer peripheral cut. It is broken in the circumferential direction starting from the portion 25, and the engagement between the engaging protrusion 24 of the broken portion and the mouth portion 1 of the container body D is disengaged, and the hinge cap is easily pulled away from the container body D. It can be sorted and discarded.

As shown in FIGS. 1 to 3, the upper lid B is rotatably attached to the upper end of the outer circumference of the outer cylinder 21 of the cap body A via the hinge C, and has a flat top wall 30 and a top wall. It is provided with a side peripheral wall 31 hanging from the peripheral edge of 30.
The top wall 30 has a sealing cylinder 32 suspended from the lower surface and a holding receiving wall 34 on the hinge C side inside the sealing cylinder 32. The outer circumference of the sealing cylinder 32 is the inner circumference of the ejection cylinder 6 of the cap body A. The holding receiving wall 34 is provided so as to be in close contact with the holding wall 34 so that the tip of the inner peripheral edge engages with or abuts on the upper end of the outer periphery of the holding standing wall 13 of the transition plug 10.
In this embodiment, the inner circumference of the holding receiving wall 34 is engaged with or in contact with the outer circumference of the holding standing wall 13, but the outer circumference of the holding receiving wall 34 is engaged with or in contact with the inner circumference of the holding standing wall 13. Further, the holding receiving wall 34 may have a tip end surface engaged with or in contact with the upper end surface of the holding standing wall 13.
The holding receiving wall 34 is vertically installed at least in the range where the holding standing wall 13 is erected.
Further, the holding receiving wall 34 has a contact rib 35 formed in the center of the inner circumference of the hinge C side, and the inner circumference of the holding receiving wall 34 engages with the outer periphery of the holding standing wall 13 of the transition plug 10. Alternatively, it is provided so as to be close to or in contact with the upper end of the holding standing wall 13 when abutting.

Further, in the top wall 30, an engaging hole portion 36 is opened on the front side in the sealed cylinder 32, a step portion is provided at the lower portion of the engaging hole portion 36, and a locking protrusion on the upper portion of the pulling upper portion 12 is provided. An engagement portion 33 that engages with the portion 16 is provided.
As shown in FIG. 2B, the inner peripheral surface of the engaging portion 33 has an inclination in accordance with the lower outer peripheral surface of the locking protrusion 16, and the lower surface 33a is a stepped portion of the pulling upper portion 12 when the lid is closed. It is designed to be in contact with or in close proximity to 15.
Further, a locking projection 37 is provided on the upper surface of the step portion of the engaging hole portion 36.

In this embodiment, as shown in FIG. 1, when the lid is closed, the upper portion of the locking protrusion 16 penetrates the engaging hole portion 36, and the locking protrusion 16 is formed by a retaining process due to melting or the like. The upper portion is expanded so as to fill the engaging hole portion 36, and the locking protrusion 16 is engaged by the locking projection 37 on the upper surface of the engaging portion 33.
In this embodiment, the locking protrusion 16 is provided above the pulling upper portion 12, and the engaging hole portion 36 is further opened in the upper lid B, and when the lid is closed after molding, the upper portion of the locking protrusion 16 is passed through. The engagement portion 33 is engaged by the fastening process, but depending on the method of engaging the pulling upper portion 12 and the engagement portion 33 of the upper lid B, the engagement hole portion 36 may not be opened in the upper lid B. Alternatively, an insert body of another member may be inserted from the engaging hole portion 36 to engage with the pulling upper portion 12, and the point is that any method can be used as long as the two can be firmly engaged. good.

A knob 38 is provided on the outer periphery of the lower end of the front side of the side peripheral wall 31 in an arc shape, and as shown in FIG. A locking convex portion 39 that engages with the inner peripheral side of the joint portion 22 is vertically provided, and an engaging concave portion 40 that engages with the bulging portion 23 of the lid engaging portion 22 to maintain the closed state is provided in the center. It is installed around.

Although not shown, the hinge cap of this embodiment is provided with a shrink label, a sealing member, or the like between the cap body A and the upper lid B in order to prevent unauthorized opening before use.

Next, the usage mode and the action and effect of this example will be described.
The hinge cap of this embodiment is manufactured by integral molding by injection molding using a mold.
As shown in FIG. 2, the hinge cap of the present embodiment manufactured by integral molding is obtained in an open state, and the upper lid B is rotated via the hinge C to be in the closed state shown in FIG. To.
At that time, since the locking protrusion 16 on the upper part of the pulling upper portion 12 has a narrow upper portion and a gentle inclination on the front side, it easily enters the engaging portion 33, and the upper portion is inserted into the engaging hole portion 36. Upon reaching it, the lower outer periphery of the locking protrusion 16 fits into the inner circumference of the engagement portion 33, and the lower surface 33a of the engagement portion 33 abuts or approaches the step portion 15 of the pulling upper portion 12.
Further, the upper end of the outer circumference of the holding standing wall 13 engages with or comes into contact with the lower end of the inner circumference of the holding receiving wall 34, and the upper end of the holding standing wall 13 comes into contact with or comes into close contact with the lower end of the contact rib 35.

Further, the sealing cylinder 32 forms a sealing portion in close contact with the pouring cylinder 6, and the lid engaging portion 22 of the cap body A, the locking convex portion 39 of the upper lid B, and the engaging concave portion 40 are fitted to each other. Then, the lid is closed as shown in FIG.
In this embodiment, in the closed state, the upper portion of the locking protrusion 16 is subjected to a retaining process by melting or the like, and as shown in FIG. 4A, the locking protrusion 16 is the engaging portion 33. Be hung up on.
Next, the closed hinge cap is attached by tapping the mouth portion 1 of the container body D filled with the content liquid.

When the hinge cap of this embodiment is used for the first time, the thin-walled weakened portion 8 provided on the partition wall 5 of the cap body A can be broken and opened by opening the upper lid B.
First, when the knob 38 of the upper lid B is lifted by hooking a finger, the bottom wall 11 on the front side is lifted, whereby the thin-walled weakened portion 8 on the front side begins to break, and by further lifting the upper lid B, the hinge C direction. The thin-walled weakened portion 8 is broken, and finally the thin-walled weakened portion 8 near the hinge C is broken, and the transition plug 10 is removed from the partition wall 5 and then transferred to the upper lid B to be supported. In the cap body A, the trace of the transition plug 10 removed from the partition wall 5 serves as a spout, and the content liquid in the container body D can be poured out.

In this embodiment, since the reinforcing rib 14 is provided on the hinge C side of the pulling upper portion 12, stress is concentrated on the thin-walled weakened portion 8 on the front side, and the thin-walled weakened portion 8 is easily broken.
Further, in this embodiment, the tip portion 11a of the bottom wall 11 on the front side has a sharp shape, so that stress is easily concentrated on the thin-walled weakened portion 8 on the front side.

As shown in FIG. 4, after the content liquid is used, the upper lid B is closed again to the cap body A to form a sealing portion between the sealing cylinder 32 and the pouring cylinder 6 of the upper lid B and the cap main body. The lid engaging portion 22 of A, the locking convex portion 39 of the upper lid B, and the engaging concave portion 40 are fitted to each other, and the inside of the hinge cap can be sealed again, and the upper lid B is repeatedly opened and closed for use. Can be done.

Further, in the present embodiment, the transition plug 10 can firmly hold the rear end portion 11b of the bottom wall 11 by engaging or abutting the outer periphery of the holding vertical wall 13 with the inner circumference of the holding receiving wall 34 of the upper lid B. Therefore, the spout is closed by the bottom wall 11, and the rear end portion 11b of the bottom wall 11 is unlikely to be deformed even if the container body D is laid on its side or the content liquid is shaken greatly in the case of dressing or the like. It becomes difficult for the content liquid to enter through the gap between the bottom wall 11 and the partition wall 5, and even if the content liquid enters through the gap between the bottom wall 11 and the partition wall 5, the content liquid flows into the transition plug 10 by the holding standing wall 13. Since it can be suppressed, even when the lid is opened again, it is possible to prevent the inside and outside of the container body D from being contaminated by the content liquid.

Further, in this embodiment, the holding receiving wall 34 of the upper lid B has a contact rib 35 formed in the center of the inner circumference of the hinge C side, and the contact rib 35 has a transition plug 10 on the inner circumference of the holding receiving wall 34. Since it is provided so as to be close to or in contact with the upper end of the holding standing wall 13 when engaging with or in contact with the outer periphery of the holding standing wall 13, even if the top wall 30 of the upper lid B is pushed in, the holding standing wall 13 and the holding receiving wall 13 are held and received. It is possible to prevent the engagement or contact with the wall 34 from being disengaged.
In this embodiment, the contact ribs 35 are provided only at one place on the holding receiving wall 34, but may be provided at a plurality of places.
Further, since the peripheral wall 18 is provided around the entire circumference of the bottom wall 11 of the transition plug 10, even if the transition plug 10 moves lower than before opening when the upper lid B is closed after opening. , Does not impair the closure of the spout. Further, since the peripheral wall 18 is provided on the entire circumference of the bottom wall 11, the content liquid is suppressed from entering the space between the transition plug 10 and the upper lid B.

In the above embodiment, the hinge cap is attached to the container body D as a stopper, but it may be screwed with a screw.
Further, the thin wall weakening portion 8 has the same wall thickness as the hinge C side on the front side, but may be thinner than the hinge C side so that the front side can be easily broken.

The hinge cap of the present invention can be opened with a small force because the thin-walled weakened portion is easily broken at the first opening of the lid, and by suppressing the deformation (lifting, etc.) of the transition plug, the hinge cap can be opened. Since it is possible to prevent the inside and outside of the container from being contaminated by the content liquid, it can be widely applied as a hinge cap for a container for storing the content liquid that requires airtightness.

A Cap body B Top lid C Hinge D Container body 1 Mouth part 2 Engagement ridge 5 Partition 6 Injection cylinder 7 Mounting part 8 Thin-walled weakening part 10 Transition plug 11 Bottom wall 11a Tip part 11b Rear end part 12 Pulling top 13 Holding standing wall 14 Reinforcing ribs 15 Steps 16 Locking protrusions 17 Recesses 18 Peripheral wall 20 Inner cylinder 21 Outer cylinder 22 Lid engagement part 23 Protrusion part 24 Engagement protrusion 25 Outer cut portion 26 Slit groove 30 Top wall 31 Side peripheral wall 32 Sealing cylinder 33 Envelope 33a Lower surface 34 Holding receiving wall 35 Contact rib 36 Engagement hole 37 Locking protrusion 38 Grip 39 Locking convex part 40 Engaging concave part

Claims (5)

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 consists of a partition wall that closes the mouth of the container body, a dispensing tube erected on the partition wall, a transition plug defined by a breakable thin-walled weakened portion on the partition wall inside the dispensing tube, and a transition plug. With a pull-up that stands from the opposite side of the hinge,
The top lid comprises a top wall, a sealed cylinder that is hung from the bottom of the top wall and seals the dispenser cylinder, and an engagement portion that is provided inside the sealed cylinder and engages with the pulling top.
The transition plug has a holding wall that stands upright from the hinge side.
The upper lid is a hinge cap that is hung from the lower surface of the top wall and includes a holding receiving wall that engages with or abuts on the holding standing wall. The hinge cap according to claim 1, wherein the holding standing wall is erected along the inside of the thin-walled weakened portion. The hinge cap according to claim 1 or 2, wherein the holding receiving wall is vertically installed in a range in which the holding standing wall is erected. The hinge cap according to any one of claims 1 to 3, wherein the upper lid is hung from the lower surface of the top wall and includes a contact rib capable of contacting the holding standing wall. The hinge cap according to any one of claims 1 to 4, wherein the transition plug includes a peripheral wall provided around the thin-walled weakened portion.

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