JP7080748B2 - Note cap - Google Patents

Description

The present invention relates to a pouring cap that has an outer container and an inner container and is attached to a double container that squeezes (presses) the body of the outer container to push out the content liquid in the inner container.

Conventionally, a squeeze container has been used in which various food seasonings, cosmetics, chemicals, and other content liquids are stored and squeeze to pour out the content liquids.
In addition, as a squeeze container that can maintain the quality of the content liquid, a double structure inside and outside is used, and by squeezing the body of the outer container, the volume of the inner container arranged inside is reduced and the content liquid is poured. There is also known a squeeze container that restores only the body of the outer container to its original shape by taking in the outside air from the outside air introduction hole between the outer container and the inner container as the internal pressure decreases accordingly ( For example, see Patent Document 1).

In the case of the cap for the squeeze container described in Patent Document 1, especially in the case of food seasonings, the upper lid and the cap are provided so that the cooling water when cooling with a shower with hot water or the like does not enter the cap after the content liquid is hot-filled. It is necessary to strengthen the fitting at the fitting portion with the cap body to improve the airtightness.
However, if the airtightness is improved, the air between the inner container and the outer container may be caused by a rise in temperature such as when the consumer stores the product in a refrigerator after use and keeps it in a warm place when using it again. Was expanded, pressure was applied to the inner container, and when the upper lid was opened, there was a risk that the content liquid would spurt out from the pouring cylinder of the cap.

Japanese Unexamined Patent Publication No. 2014-105016

The present invention has an object of solving the above-mentioned problems, and the airtightness between the upper lid and the cap body is maintained at the stage of filling the content liquid, and when the double container is stored after opening, the outer container and the contents are maintained. It is an object of the present invention to provide a pouring cap capable of opening the air between the container and the container to the outside and preventing the content liquid from being ejected from the pouring cylinder.

In order to solve the above-mentioned problems, the present invention comprises an outer container and an inner container as a pouring cap, and by squeezing the outer container, the volume of the inner container is reduced and the content liquid is poured, while the squeeze is performed. After opening, outside air is introduced between the outer container and the inner container, and it is used for the double container that restores only the outer container to the original state, and the cap attached to the mouth tube of the double container. The main body, the upper lid connected to the cap main body via a hinge, and the opening of the mouth tube of the double container are covered inside the cap main body, and the inner plug having the injection part and the injection part of the inner plug are closed. It is an injection cap consisting of a valve body that enables it, and the cap body extends inward from the annular peripheral wall attached to the mouth tube of the double container and the upper end of the annular peripheral wall to introduce outside air. It has a top wall with holes and a pouring vessel erected from the top wall, and the top lid has a top wall and a side peripheral wall suspended from the peripheral edge of the top wall, and the top lid on the opposite side of the hinge. A weakening recess is provided in a part of the hinge, and a brim is extended on the side peripheral wall opposite to the hinge, and the weakening recess can be broken by lifting the brim during use. do.

As a specific embodiment of the injection cap, the side peripheral wall on the opposite side of the hinge is provided with connecting portions at two points on the outer periphery, and a brim portion that can rotate downward from the connecting portion via the hinge portion is extended. The brim is characterized by being lowered before use, and at the edge of the upper lid on the outside of the weakened recess, the eaves that cross the side peripheral wall outward, and the eaves and the side peripheral wall. A recess is provided between them, and when the brim is lifted, the inner edge of the brim enters the recess, and when in use, the eaves are pushed up to break the weakened recess, and when the lid is closed after use, A configuration is adopted in which the brim portion is held by the concave portion and the eaves portion.

Further, as a specific embodiment of the pouring cap, the valve body portion is held between the cap body and the inner plug, and the valve body portion covers the pouring portion of the inner plug and is injected during squeeze. The structure is characterized by a check valve body that opens the outlet to allow the flow of the content liquid, and the inner plug has a partition wall that covers the opening of the mouth tube of the double container and a partition wall. It consists of a leg part that is vertically hung from the lower surface of the part and fits into the mouth tube part, and an injection part that is provided by opening the partition wall part. The structure is characterized by having a tubular wall, and the valve body can be introduced to the outside air when the outside air is blocked from the outside air introduction hole when squeezing and the squeeze hand is loosened. A configuration characterized by being provided with an outside air introduction valve is adopted.

The pouring cap of the present invention maintains the airtightness between the upper lid and the cap body when the content liquid is filled, and also lifts the brim during use to break the weakened recess of the upper lid, thereby breaking the outer container and the contents. It is possible to open the air between the vessel and the vessel to the outside, suppress the internal pressure on the inner container due to the temperature rise, and prevent the content liquid from spouting.
Further, the lifted brim portion can be used as a handle portion of the upper lid as it is, and the opening and closing of the upper lid can be facilitated.

It is a figure which shows the closed state of the pouring cap of this invention, (a) is a top view, (b) is a side sectional view. It is a figure which shows the closed state of the pouring cap of this invention, (a) is an enlarged view of the main part of FIG. 1 (b), and (b) is a front view. It is a figure which shows the opening state of the pouring cap of this invention, (a) is a top view, (b) is a side view. It is explanatory drawing which shows the state which lifted the brim part and broke the weakened concave part when the pouring cap of this invention was used for the first time, (a) is a top view, (b) is a partial cross-sectional side view. (C) is an enlarged view of a main part of (b). It is a figure which shows the closed state after use of the pouring cap of this invention, (a) is a partial sectional side view, and (b) is an enlarged view of the main part of (a).

As the injection cap of the present invention, an embodiment embodied as a hinge cap will be described with reference to the drawings showing examples.

In FIG. 1, A is a double container, B is a cap body attached to the double container A, D is an upper lid connected to the cap body B so as to be openable and closable via a hinge C, and E is the inside of the cap body B. F is a valve body portion provided between the cap body B and the inner plug E, which is attached to the inner plug and covers the opening of the double container A.

As shown in FIG. 1, the double container A includes an outer container A1 having a mouthpiece 1 formed at an upper portion and elastically deformable by squeezing a body portion 2 formed below the mouthpiece 1. It is formed as a laminated peeling container (delamination container) having an inner container A2 that is peelably laminated with respect to the outer container A1 inside the outer container A1, and is formed on the upper end surface 3 of the mouth cylinder portion 1 of the outer container A1. , The end 4 of the inner container A2 is laminated, and the outer container A1 is closed.

In the double container A, a screw portion (male screw) 5 is formed on the outer peripheral surface of the mouth cylinder portion 1, and further, the mouth cylinder portion 1 sucks outside air between the outer container A1 and the inner container A2. A through-opening 6 is provided, and a groove 7 is formed on the outer peripheral surface of the mouthpiece 1 where the through-opening 6 is located, in which the threaded portion (male screw) 5 is cut out in the vertical direction.
When the body 2 of the outer container A1 is squeezed, the content liquid is poured out from the cap body B, while after the squeeze of the body 2 is released, the outer container A1 and the inner container A2 are squeezed through the through opening 6. The outside air is sucked in between the two, and the outer container A1 is restored while the inner container A2 is reduced in volume and deformed. Although not shown, an adhesive layer (at least one in the vertical direction) may or may not be provided between the outer container A1 and the inner container A2.
As a result, it is possible to prevent the outside air from being sucked into the inner container A2 by being replaced with the poured content liquid, to suppress the contact of the content liquid with the outside air, and to maintain the quality. ..
The double container A may be formed by forming a double (inside / outside) laminated parison by, for example, extrusion molding, and blow molding the laminated parison (extrusion blow molding). In addition, a preform for the outer container A1 and a preform for the inner container A2 are separately formed by injection molding or the like, and these are combined in a double (inner / outer) manner and integrally biaxially stretched and blow molded. , Double container A may be formed.
The outer container A1 and the inner container A2 are made of synthetic resin, and may be made of the same material or different materials as long as they are a peelable combination. Examples of the synthetic resin material include PET (polyethylene terephthalate), PP (polypropylene), PE (polyethylene), nylon (polyamide), EVOH (ethylene-vinyl alcohol copolymer) and the like. From these synthetic resin materials, the outer container A1 and the inner container A2 are formed in a combination that is peelable (incompatible).

As shown in FIGS. 1 to 3, the cap body B has a screw portion (female screw) 11 on the inner peripheral surface so as to be screwed into the screw portion (male screw) 5 of the mouth cylinder portion 1 of the double container A. An annular peripheral wall 12, a lid engaging portion 13 provided at the upper end of the annular peripheral wall 12 that engages with the upper lid D, a top wall 14 extending inward from the upper end of the annular peripheral wall 12, and a top wall 14 It is provided with a pouring cylinder 15 which is erected via a step portion.
A protrusion 17 that engages with a brim 42, which will be described later, is provided on the upper portion of the annular peripheral wall 12 on the opposite side of the hinge C.

Further, the top wall 14 is provided with outside air introduction holes 16 at at least one place (preferably two places).
The outside air flowing in through the outside air introduction hole 16 is a gap between the outer edge of the partition wall 20 of the inner plug E and the annular peripheral wall 12 of the cap body B, which will be described later, and a gap between the outer container A1 side of the double container A and the annular peripheral wall 12. , And is introduced between the outer container A1 and the inner container A2 through the through opening 6 provided in the mouth tube portion 1.

As shown in FIG. 1B, the inner plug E has a partition wall portion 20 that covers the opening of the mouth cylinder portion 1 of the double container A, and the mouth cylinder portion 1 of the double container A on the lower surface of the partition wall portion 20. The tubular wall is provided with a leg portion 21 that fits on the inner surface of the inner container A2 side of the container, a pouring portion 22 having an opening for flowing the content liquid, and a tubular wall 23 provided adjacent to the pouring portion 22. A spherical mobile valve 24 is provided inside the 23, and in order to support the mobile valve 24, the lower end portion of the tubular wall 23 is reduced in diameter, and the upper end portion is provided with a protrusion or the like to prevent it from coming off. It has been done.

The moving valve 24 in the tubular wall 23 is made of metal or synthetic resin, and when the content liquid is poured out, the double container A is tilted and moves so as to be close to the upper opening, but the content liquid is poured. When the double container A is returned to the upright position after finishing the ejection, it moves to the opening at the bottom and sucks back the content liquid remaining in the dispensing cylinder 15 to suck back the space between the dispensing cylinder 15 and the partition wall portion 20. To prevent dripping.
The moving valve 24 does not have to be spherical, but may have any shape as long as it can easily slide up and down in the cylindrical wall 23.

The valve body portion F has a tubular portion 26 that fits into the groove portion provided on the top wall 14 of the cap body B and the groove portion provided on the partition wall portion 20, and extends inward from the inner surface of the tubular portion 26. , A check valve main body 27 that covers the opening of the ejection portion 22 of the partition wall portion 20 of the inner plug E, and a check valve main body that extends from the outer surface of the tubular portion 26 and lightly hits the lower surface of the top wall 14 of the cap main body B so as to be detachable. It is provided with an outside air introduction valve 28 that is in contact with or in close proximity to the outside air introduction valve 28.
Further, although the opening on the upper surface of the tubular wall 23 is covered with the check valve main body 27, it does not have to be completely covered.

The check valve main body 27 is connected to the tubular portion 26 via an elastic arm, and a plurality (for example, three) elastic arms are provided along the circumferential direction. The number of elastic arms is not limited to three, and a check valve other than the above configuration may be used as long as it is a check valve that prevents the movement of the content liquid.
Further, the outside air introduction valve 28 is made of an elastic body, and when the outer container A1 is squeezed, the outside air introduction hole 16 is closed, and when the squeeze is stopped, the outside air introduction hole 16 is opened to form the outer container A1. Outside air is introduced between the inner container A2 and the outer container A1 to return to the initial shape.

As shown in FIGS. 1 to 3, the upper lid D is rotatably connected to the upper end of the outer periphery of the annular peripheral wall 12 of the cap body B via the hinge C, and the top wall 30 and the top wall 30 are connected to each other. It is provided with a side peripheral wall 31 that is vertically hung from the peripheral portion.
From the inner surface of the top wall 30, a seal cylinder 32 whose outer peripheral surface abuts on the inner peripheral surface of the pouring cylinder 15 is vertically hung from the inner surface of the top wall 30, and the closed state of the upper lid D can be maintained.

The lower end of the side peripheral wall 31 is provided with an engaging recess 33 that engages with the lid engaging portion 13 of the cap body B on the inner peripheral side, and further, an engaging convex portion 34 is provided below the engaging recess 33. ..
The lid engaging portion 13 is wrapped and fitted by the engaging concave portion 33 and the engaging convex portion 34, and the upper lid D and the cap body B are sealed.
The top wall 30 on the opposite side of the hinge C is provided with a weakening recess 36 from above in order to cause a crack in the upper lid D, and further, on the outside of the weakening recess 36, from the edge portion of the top wall 30 to the side peripheral wall 31. An eaves 37 extending outwardly from the eaves 37 is provided, and a recess 38 is provided between the eaves 37 and the side peripheral wall 31.

Further, the side peripheral wall 31 on the opposite side of the hinge C is provided with two connecting portions 40 on the left and right, and the semi-disk-shaped brim portion 42 not joined to the upper lid D from the connecting portion 40 via the hinge portion 41. The brim portion 42 can be rotated downward with the hinge portion 41 as a fulcrum, and when not in use, the brim portion 42 is rotated downward and the brim portion 42 is rotated as shown in FIGS. The engaging portion 43 provided at the center of the inner edge of the 42 engages with the lower end of the protrusion 17 provided on the upper portion of the annular peripheral wall 12 on the opposite side of the hinge C of the cap body B, and the brim portion. The lower surface side of the 42 is provided so as to be in contact with or close to the outer peripheral surface of the annular peripheral wall 12, whereby the upper lid D and the cap body B can be locked and kept in a sealed state.

Next, the usage mode and the action and effect of this example will be described.
In the dispensing cap of this embodiment, first, as shown in FIG. 3, the upper lid D in the open state with the brim portion 42 lowered is rotated around the hinge C to cover the cap body B, and the upper lid D is placed. The engaging recess 33 of the above is fitted to the lid engaging portion 13 of the cap body B and kept in a closed state.
At that time, the seal cylinder 32 of the upper lid D enters the pouring cylinder 15 of the cap body B, and the outer peripheral surface of the seal cylinder 32 comes into contact with the inner peripheral surface of the pouring cylinder 15.
Further, the engaging portion 43 provided at the inner edge of the brim portion 42 is engaged with the protruding portion 17 provided on the annular peripheral wall 12 of the cap body B.

Next, the upper end portion of the tubular wall 23 of the valve body portion F is fitted into the groove of the cap body B in the closed state, and then the tubular wall of the valve body portion F is fitted into the groove provided in the inner plug E. By fitting the lower end portion of the 23, the setting is completed as the dispensing cap of the present invention shown in FIGS. 1 and 2.
At that time, the check valve main body 27 of the valve body portion F comes into contact with the upper surface of the partition wall portion 20 of the inner plug E, and the outside air introduction valve 28 of the valve body portion F lightly touches the lower surface of the top wall 14 of the cap body B. Abut or close.

Next, the threaded portion (female screw) 11 of the cap body B of the set pouring cap is screwed into the threaded portion (male screw) 5 of the mouth cylinder portion 1 of the double container A in which the inner container A2 is filled with the content liquid. The cap body B is screwed into the double container A, and the leg portion 21 of the inner plug E is fitted to the inner peripheral side of the upper end portion of the mouth cylinder portion 1 of the double container A, and the pouring cap is attached.
In this embodiment, the upper lid D and the cap body B are maintained in a sealed state by the brim portion 42, and even if the pressure rises due to the heated content liquid, the upper lid D does not open, and the upper lid D does not open. Even if cooling and cleaning are performed with a hot water shower, the cooling water does not enter the cap.

In order to use the content liquid in the double container A, from the state shown in FIG. 1, the brim portion 42 is pulled up by hooking a finger, the cap body B is disengaged from the protrusion 17 of the annular peripheral wall 12, and further. As shown in FIG. 4, when the hinge portion 41 is rotated around and lifted, the inner edge portion of the brim portion 42 enters the recess 38 of the upper lid D, and the eaves are formed on the upper surface of the edge portion of the brim portion 42. The portion 37 is pushed up, and the weakened recess 36 provided in the top wall 30 of the upper lid D is broken.

Further, if the brim portion 42 is pulled up, the upper lid D is opened, so that the contents liquid can be poured out by tilting while holding the double container A and squeezing the body portion 2 of the outer container A1. can.
At that time, the content liquid in the double container A pushes open the check valve main body 27 of the valve body portion F by squeeze, and passes from the dispensed portion 22 of the opened inner plug E through the dispensed cylinder 15 of the cap main body B. Be poured out.
Further, since the outside air introduction valve 28 is in close contact with the top wall 14 of the cap body B, the pressure due to the squeeze can be efficiently transmitted to the inner container A2.

In this embodiment, the inner plug E is provided with a cylindrical wall 23 provided with a moving valve 24 inside, and the weight of the moving valve 24 and the content liquid flow into the tubular wall 23 by squeeze and move. The valve 24 moves to the dispenser cylinder 15 side.

When the squeeze of the double container A is stopped, the check valve main body 27 of the valve body portion F closes the pouring portion 22 to stop the pouring of the content liquid, and further, the force of the squeeze applied to the double container A is applied. When removed, outside air is introduced from the outside air introduction hole 16, the outside air introduction valve 28 is opened, outside air enters between the outer container A1 and the inner container A2, and only the outer container A1 quickly returns to the initial state. do.

Further, by returning the tilt of the double container A to the upright position after pouring, the moving valve 24 that had moved to the pouring cylinder 15 side in the tubular wall 23 is moved to the double container A side by its own weight. The residual content liquid that starts to move and exists on the upper surface of the partition wall portion 20 is drawn into the space between the dispensing cylinder 15 and the partition wall portion 20 by sucking back the content liquid by moving the moving valve 24, and the liquid is liquid. Who is avoided.

After use, as shown in FIG. 5, the upper lid D is held by the brim portion 42, and the upper lid D is fitted to the cap body B to be in a closed state. Since the portion is fitted in the recess 38 and is pressed from above by the eaves portion 37, the brim portion 42 is held in a lifted state.

In such a state, when the double container A is stored in the refrigerator and moved to a warm place at the time of reuse, the air between the outer container A1 and the inner container A2 is warmed and expanded due to the temperature rise. Even so, since the open state is maintained with the outside air due to the breakage of the weakened recess 36 provided in the upper lid D, the content liquid does not pop out when the upper lid D is opened.
Further, the lifted brim portion 42 serves as a handle portion when the upper lid D is opened and closed, and can be easily opened and closed.

In this embodiment, the outside air introduction valve 28 is provided, but the outside air introduction valve 28 can be eliminated. In that case, for example, the outside air introduction valve 28 can be replaced by providing a groove portion that limits the cross section of the outside air introduction path between the outer edge of the inner plug E and the cap body B.
Further, in this embodiment, the cap body B is attached to the double container A by being screwed by the threaded portion (male screw) 5 and the threaded portion (female screw) 11, but it may be attached by fitting or the like. ..

In this embodiment, the double container has been described as a double container in which the outer container and the inner container can be peeled off. However, the outer container and the inner container do not have to be peelable, and the two are simple. It may be a heavy container.

The pouring cap of the present invention can be kept in a sealed state with the brim of the upper lid lowered, the upper lid does not open even by heat filling, and cooling water is cooled by cooling or washing with a hot water shower. Etc. do not enter the cap, and by lifting the brim during use and breaking the weakened recess of the upper lid, it becomes open to the outside air and the temperature rises when it is reused after storage in the refrigerator. Since it is possible to prevent the content liquid from being ejected due to the above, it is particularly suitable as a pouring cap for a double container for filling foods, seasonings and the like.

A Double container A1 Outer container A2 Inner container B Cap body C Hinge D Top lid E Inner plug F Valve body 1 Mouth tube 2 Body 3 Top surface 4 End 5 Thread (male thread)
6 Through opening 7 Groove 11 Threaded part (female thread)
12 Circular peripheral wall 13 Lid engaging part 14 Top wall 15 Outlet cylinder 16 Outside air introduction hole 17 Protrusion part 20 Partition part 21 Leg part 22 Outlet part 23 Cylindrical wall 24 Mobile valve 26 Cylindrical part 27 Check valve body 28 Outside air Introductory valve 30 Top wall 31 Side peripheral wall 32 Seal cylinder 33 Engagement concave part 34 Engagement convex part 36 Weakened concave part 37 Eaves 38 Concave part 40 Connecting part 41 Hinge part 42 Brim part 43 Engaging part

Claims (6)

It consists of an outer container and an inner container. By squeezing the outer container, the volume of the inner container is reduced and the content liquid is poured out. A cap body that is introduced and used for a double container that restores only the outer container to its original state, and is attached to the mouth tube of the double container, and an upper lid that is connected to the cap body via a hinge. An injecting cap consisting of an inner plug having an injecting portion and a valve body portion capable of closing the injecting portion of the inner plug, which covers the opening of the mouth tube of the double container in the cap body.
The cap body has an annular peripheral wall attached to the mouth tube of the double container, a top wall extending inward from the upper end of the annular peripheral wall and having an outside air introduction hole, and a pouring erected from the top wall. Equipped with a tube,
The top lid comprises a top wall and a side peripheral wall suspended from the periphery of the top wall.
A weakening recess was provided in a part of the upper lid on the opposite side of the hinge, and a brim was extended on the side peripheral wall on the opposite side of the hinge, and the weakening recess could be broken by lifting the brim during use . Featuring pouring cap. On the side peripheral wall on the opposite side of the hinge, connecting parts are provided at two points on the outer circumference, and a brim part that can rotate downward from the connecting part via the hinge part is extended, and the brim part is lowered before use. The pouring cap according to claim 1, wherein the cap is characterized by being . At the edge of the upper lid on the outside of the weakened recess, an eaves that cross the side peripheral wall outward and a recess are provided between the eaves and the side peripheral wall.
When the brim is lifted, the inner edge of the brim enters the recess, and when in use, it pushes up the eaves to break the weakened recess, and when the lid is closed after use, the recess and the eaves are the brim. The pouring cap according to claim 2, wherein the portion is held. The valve body is held between the cap body and the inner plug, and the valve body covers the pouring part of the inner plug, and when squeezing, the pouring part is opened to allow the content liquid to flow. The pouring cap according to any one of claims 1 to 3, wherein the check valve main body is provided. The inner plug includes a partition wall that covers the opening of the mouth tube of the double container, a leg that is vertically hung from the lower surface of the partition wall and fits into the mouth tube, and an injection portion that is provided by opening the partition wall. Consists of
The dispensing cap according to any one of claims 1 to 4, wherein a cylindrical wall is provided adjacent to the dispensing section and having a moving valve that can move up and down inside. Claims 1 to 1, characterized in that the valve body portion is provided with an outside air introduction valve that shuts off the outside air from the outside air introduction hole during squeeze play and allows outside air to be introduced when the squeeze hand is loosened. The pouring cap according to any one of 5.

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