JP6858451B2 - Discharge container - Google Patents

Description

The present invention relates to a discharge container in which a discharge cap having a discharge port is attached to the mouth of the container body for accommodating the contents.

Conventionally, it has a configuration in which a discharge cap is attached to the mouth of the container body that houses the contents, and by pressing (squeezing) the body of the container body, the contents stored in the container body are discharged. There is known a discharge container capable of discharging from.

Further, in such a discharge container, a check valve is provided to allow the contents to be discharged from the container body through the discharge port, while preventing the contents and the outside air from flowing into the container body. Are known.

For example, in Patent Document 1, the container body is configured as a double container in which a volume-reducing and deformable inner layer (inner container) is housed inside the outer layer (outer container), and a discharge cap (pouring cap member) is provided. A discharge container having a structure in which a check valve is provided between the inner plug (board member) and the inner plug (board member) is described. In a discharge container having such a configuration, when the body of the container body is pressed to discharge the contents and then the pressure on the body is released, the outflow hole provided in the inner plug is closed by the check valve to discharge. The inflow of contents and outside air from the outlet (pouring outlet) toward the container body is blocked, and the outside air is introduced between the outer layer body and the inner layer body through the intake hole (communication hole) provided in the discharge cap to introduce the inner layer. Since the outer layer can be restored to its original shape while the body is reduced in volume and deformed, the contents are discharged without being replaced with the outside air, which makes it difficult for the contents remaining inside the container body to come into contact with air. Therefore, the deterioration and deterioration can be suppressed.

Japanese Unexamined Patent Publication No. 2011-23840

However, the above-mentioned conventional discharge container has a configuration in which a plate-shaped check valve is brought into surface contact with a flat valve seat surrounding the outflow hole to close the outflow hole, and the contents are in the vicinity of the check valve. If a certain period of time elapses with an object attached, the check valve and the valve seat portion may stick to each other due to the solidification of the contents, and the check valve may not open properly at the next use. Further, even when a so-called ball valve type check valve in which the sphere moves inside the tubular body is used, the sphere may stick to the tubular body due to the solidification of the contents, and the opening / closing operation may not be performed properly. ..

An object of the present invention is to solve such a problem, and an object of the present invention is to provide a discharge container capable of suppressing a malfunction of a check valve due to solidification of the contents or the like.

The discharge container of the present invention includes a tubular mouth portion and a body portion connected to the mouth portion, and forms a container body for containing the contents inside.
A discharge cap that has a discharge port for discharging the contents and is attached to the outside of the mouth portion,
A lid that is arranged so as to cover the discharge port and is configured to be able to open and close the discharge port.
A partition wall having an outflow hole that serves as a flow path for the contents between the discharge port and the accommodation space.
A check valve that can open and close the outflow hole is provided.
The check valve is connected to the base portion via a tubular base portion held by the discharge cap and an elastic piece provided inside the base portion, and abuts on the partition wall portion to close the outflow hole. A valve body that opens the outflow hole away from the partition wall portion, a protruding portion that protrudes from the valve body, and a protruding portion that is provided at the tip of the protruding portion and is provided on the inner surface of the lid body in a closed state. It has an engaged portion that undercuts and engages with the engaged holding portion.
In the process of opening the lid, the engaged portion is pulled up by the lid to separate the valve body from the partition wall, and when the lid is further opened, the engaged portion is moved to the engaging holding portion. It has been configured to get out of,
The base is held by undercut engagement with the discharge cap.
The fitting strength of the base portion with respect to the discharge cap is configured to be larger than the fitting strength of the engaged portion with respect to the engaging holding portion .

Further, in the discharge container of the present invention, the discharge cap includes a top wall portion that covers the opening of the mouth portion and a tubular tubular wall portion that covers the outer periphery of the mouth portion.
It is preferable that the partition wall is integrally connected to the top wall portion.

Further, in the discharge container of the present invention, it is preferable that the lid body is integrally connected to the discharge cap via a hinge.

According to the present invention, it is possible to provide a discharge container capable of suppressing malfunction of the check valve due to solidification of the contents or the like.

It is sectional drawing which is the side view of the main part of the discharge container which is one Embodiment of this invention. It is a view of arrow A of the check valve in FIG. It is sectional drawing which shows the process of opening a lid from the state shown in FIG. It is sectional drawing which shows the state of discharging the content from the discharge container shown in FIG.

Hereinafter, the present invention will be described in more detail with reference to the drawings. As shown in FIG. 1, the discharge container 1 according to the embodiment of the present invention includes a container body 10, a discharge cap 20, a lid 30, and a check valve 40. The discharge container 1 can be used for accommodating foods such as cooking oil or contents such as cosmetics. In particular, it is effective as a container for containing contents that easily solidify with the passage of time.

Although details are not shown, the container body 10 includes a tubular mouth portion 11 and a body portion 12 located below the mouth portion 11. In the present embodiment, the container body 10 is configured as a laminated peeling container including an outer layer body 13 and an inner layer body 14 housed inside the outer layer body 13. The inner layer body 14 is formed in a thin bag shape that can be reduced in volume and deformed by, for example, a synthetic resin material, and is laminated and arranged so as to be peelable on the inner surface of the outer layer body 13. The inside of the inner layer body 14 is a storage space S for the contents described above. The outer layer body 13 is formed of, for example, a synthetic resin material into a bottle shape having a predetermined rigidity to form an outer shell of the container body 10. The portion of the outer layer 13 corresponding to the body portion 12 can be squeezed (pressed) and has resilience to the original shape. Further, in this example, an outside air introduction hole for introducing outside air into the space between the outer layer body 13 and the inner layer body 14 is formed in a slit shape at the bottom of the container body 10. The slit-shaped outside air introduction hole can be formed in the pinch-off portion. The outside air introduction hole may be provided in the mouth or body of the outer layer 13. By introducing outside air into the space between the outer layer 13 and the inner layer 14 through the outside air introduction hole, only the inner layer 14 can be reduced in volume and deformed while maintaining the shape of the outer layer 13. The container body 10 extends vertically between the outer layer 13 and the inner layer 14 from the mouth 11 toward the bottom of the body 12, and the inner layer 14 is partially formed with respect to the outer layer 13. It is also possible to have a configuration including a plurality of adhesive layers (not shown) to be adhered to. The container body 10 is extruded and blow-molded using, for example, a tubular parison formed by laminating a synthetic resin forming the outer layer 13 and a synthetic resin of the inner layer 14 having low compatibility with the outer layer 13. Can be obtained by, but is not limited to.

The mouth portion 11 is formed in a cylindrical shape, and a protrusion 11a for mounting the discharge cap 20 by tapping or the like is integrally provided on the outer peripheral surface thereof. The body portion 12 has a tubular shape connected to the lower end of the mouth portion 11. In this example, the container body 10 has a bottle shape that can stand on its own by grounding the bottom portion (not shown) that closes the lower end opening of the body portion 12. The container body 10 may have a tube shape that does not have a bottom and cannot stand on its own.

The discharge cap 20 is attached to the mouth portion 11 of the container body 10. The discharge cap 20 is made of a synthetic resin material and is formed in a topped tubular shape including a top wall portion 21 that covers the opening of the mouth portion 11 and a cylindrical cylinder wall portion 22 that covers the outer periphery of the mouth portion 11. A protrusion 22a is provided on the inner peripheral surface of the tubular wall portion 22, and the discharge cap 20 is formed by undercut engagement of the protrusion 22a with the protrusion 11a provided on the outer peripheral surface of the mouth portion 11. It is designed to be attached to the mouth portion 11 of the container body 10.

The top wall portion 21 is integrally provided with a discharge cylinder 23 that projects upward from the top wall portion 21. The discharge cylinder 23 is arranged so as to be deviated from the axial center of the substantially circular top wall portion 21, and the tip opening thereof serves as a discharge port 23a for the contents. In this example, the tip of the discharge cylinder 23 is provided with a lip portion 23b that extends outward in the radial direction, that is, gradually expands in diameter toward the tip.

Further, inside the discharge cylinder 23, an annular partition wall portion 25 having an outflow hole 24 forming a flow path for the contents is provided. The upper surface 25a of the partition wall 25 is a valve seat portion with which the check valve 40 abuts.

An inner cylinder portion 26 that hangs down so as to be coaxial with the discharge cylinder 23 is provided on the outer peripheral edge of the partition wall portion 25, and the inner cylinder portion 26 is a discharge cylinder at the lower end portion (the end portion on the accommodation space S side). It is integrally connected to the lower part of 23. That is, the partition wall portion 25 is integrally connected to the top wall portion 21 via the inner cylinder portion 26 and the lower portion of the discharge cylinder portion 23. A protrusion 26a is provided on the outer peripheral surface of the inner cylinder portion 26. The protrusions 26a may have a ring shape that is continuous over the entire circumference of the outer peripheral surface of the inner cylinder portion 26, or may have a plurality of protrusions that are intermittent in the circumferential direction.

Further, on the lower surface side of the top wall portion 21, a cylindrical seal cylinder portion 27 that abuts on the inner peripheral surface of the mouth portion 11 is integrally provided.

Here, the partition wall portion 25 is not limited to the configuration of being integrally connected to the top wall portion 21, and may be formed separately from the discharge cap 20 and assembled inside the discharge cap 20. For example, it may be configured as a part of an inner plug arranged so as to cover the opening of the mouth portion 11 inside the discharge cap 20.

Further, the discharge cap 20 is provided with a lid 30 which is arranged so as to cover the discharge cylinder 23 and can close the discharge port 23a. The lid 30 includes a peripheral wall portion 31 formed in a cylindrical shape having substantially the same diameter as the tubular wall portion 22, and a top wall portion 32 that covers the upper end of the peripheral wall portion 31. Further, in this example, the tubular wall portion 22 and the peripheral wall portion 31 are rotatably connected by a hinge 33.

The top wall portion 32 is provided with a tubular seal wall 34 protruding from the lower surface of the top wall portion 32 and an engagement holding portion 35 located inside the seal wall 34 in the radial direction. The seal wall 34 comes into contact with the inner peripheral surface of the discharge cylinder 23 in the closed state of the lid 30 shown in FIG. 1 to close the discharge port 23a. The seal wall 34 may be configured to come into contact with the discharge cylinder 23 from the outside.

In this example, the engagement holding portion 35 is formed in a cylindrical shape, and a convex portion 35a for undercut engagement with the engaged portion 46 of the check valve 40, which will be described later, is provided on the inner peripheral surface thereof. Has been done. Further, an inclined surface 35b whose diameter increases toward the tip (lower end in FIG. 1) is provided on the inner peripheral surface of the engaging holding portion 35, and the engaged portion 46 is placed inside the engaging holding portion 35. It is easy to insert. Further, the engaging holding portion 35 pulls the engaged portion 46 with a predetermined force from the state where the engaged portion 46 is fitted and held so that the engaged portion 46 comes out (the fitting is released). It is configured in.

On the side of the peripheral wall portion 31 facing the hinge 33, a knob portion 36 that serves as a finger hook when opening the lid 30 is provided. The lid 30 is not limited to being integrally connected to the cylinder wall portion 22 by a hinge 33, but may be formed separately from the discharge cap 20 and attached to the discharge cap 20 by screwing, undercutting, or the like. Good.

The check valve 40 is arranged inside the discharge cylinder 23. In this example, the check valve 40 has a cylindrical base 41 held in an annular groove formed between the discharge cylinder 23 and the inner cylinder 26, and a single or a plurality of elastic pieces provided inside the base 41. A substantially disk-shaped valve body 43 integrally connected via a 42, and a projecting portion 44 projecting from the valve body 43 toward the discharge port 23a are provided.

A protrusion 41a is provided on the inner peripheral surface of the base 41. By undercuting the protrusion 41a with the protrusion 26a provided on the inner cylinder 26, the base 41 is firmly fitted and held to the discharge cap 20. The base 41 is held by the discharge cap 20 so that at least the check valve 40 does not come out even if the check valve 40 is pulled upward in the process of opening the lid 30. That is, in this example, the fitting strength of the base 41 with respect to the discharge cap 20 is configured to be larger than the fitting strength of the engaged portion 46 with respect to the engaging holding portion 35. The base portion 41 may be screw-coupled to the discharge cylinder 23 or the inner cylinder portion 26, or may be fixed to the discharge cylinder 23 or the inner cylinder portion 26 by adhesion, welding, or the like.

An annular convex portion 45 is provided on the lower surface of the valve body 43 (the surface on the accommodation space S side), and the engagement holding portion is provided at the tip of the protruding portion 44 provided on the other side. An engaged portion 46 capable of undercut engagement is provided on the 35. The protruding portion 44 has a columnar shape that gradually reduces in diameter toward the engaged portion 46, and the diameter of the projected portion 44 is increased in the engaged portion 46.

Here, the annular convex portion 45 is formed in a tapered shape toward the partition wall portion 25 side, whereby the contact area between the annular convex portion 45 and the upper surface 25a of the partition wall portion 25 is reduced. As a result, the amount of contents that adhere to and remain in the contact portion between the valve body 43 and the upper surface 25a can be reduced. Therefore, by providing the annular convex portion 45 on the valve body 43, it is possible to reduce the degree of sticking due to the solidification of the contents.

As shown in FIG. 2 which is a view taken along the arrow A of FIG. 1, the check valve 40 of the present embodiment forms a so-called four-point valve in which the valve body 43 is held by four elastic pieces 42. However, the number of elastic pieces 42 may be 3 or less, or 5 or more.

In the check valve 40, the annular convex portion 45 of the valve body 43 abuts on the upper surface 25a of the partition wall portion 25 to close the outflow hole 24, and at the same time, the check valve 40 is separated from the upper surface 25a to open the outflow hole 24. As a result, the check valve 40 allows the flow of the contents from the accommodation space S side to the discharge port 23a side, while allowing the backflow of the contents from the discharge port 23a side to the accommodation space S side and the inflow of air. Etc. can be prevented.

When attempting to discharge the contents of the discharge container 1 from the closed state shown in FIG. 1, first, the lid 30 is opened. When opening the lid 30, as shown in FIG. 3, the knob 36 is pulled upward to rotate the lid 30 starting from the hinge 33. In the process of opening the lid 30, the engaged portion 46 is pulled up by the lid 30, and the protruding portion 44 and the valve body 43 are displaced upward together with the lid 30. As a result, the annular convex portion 45 of the valve body 43 is temporarily separated from the upper surface 25a of the partition wall portion 25.

Here, when the valve body 43 moves upward, the base 41 is firmly held by the discharge cap 20 and does not move, and the elastic piece 42 elastically deforms. At this time, due to the restoring force of the elastic piece 42, a force that pulls back downward acts on the engaged portion 46 and the valve body 43. When the lid 30 is further opened, the undercut engagement of the engaged portion 46 with respect to the engaging holding portion 35 is released, and the engaged portion 46 comes out of the engaging holding portion 35. As a result, the valve body 43 returns to the original position shown in FIG. 1, and the outflow hole 24 can be opened and closed.

As shown in FIG. 4, when the discharge container 1 with the lid 30 opened is placed in an inverted position and the body 12 is pressed to squeeze the outer layer 13, the contents in the accommodation space S are pressurized and the valve body 43 is pressed. Passes through the outflow hole 24 while pushing open, and is discharged to the outside from the discharge port 23a.

After the contents are discharged, the valve body 43 is restored to the original position and the outflow hole 24 is closed, so that the inflow of outside air into the accommodation space S is prevented. As a result, the contact of the contents remaining in the accommodation space S with the air can be reduced, and the deterioration or deterioration of the contents can be suppressed. Further, after the contents are discharged, only the shape of the outer layer 13 is restored while maintaining the state of the inner layer 14 whose volume has been reduced and deformed.

Further, when closing the lid 30 after discharging the contents, the engaged portion 46 is placed on the inclined surface 35b of the engaging holding portion 35 while the valve body 43 is supported from below by the partition wall portion 25. It is inserted inside the engagement holding portion 35 while being guided. As a result, as shown in FIG. 1, the convex portion 35a is undercut engaged with the engaged portion 46. That is, by closing the lid 30, the engaged portion 46 is automatically fitted and held with respect to the engaging holding portion 35, so that the valve body will be opened again the next time the lid 30 is opened. The 43 can be temporarily pulled up so as to be surely separated from the upper surface 25a of the partition wall 25.

As described above, in the discharge container 1 of the present embodiment, the lid is configured to hold the engaged portion 46 of the check valve 40 by the engaging holding portion 35 provided on the lid 30. In the process of opening the body 30, the valve body 43 is temporarily separated from the upper surface 25a of the partition wall 25.

Therefore, according to the discharge container 1 of the present embodiment, even if the upper surface 25a of the partition wall 25 and the valve body 43 of the check valve 40 are stuck to each other due to solidification of the contents or the like, the check valve 40 is attached from the upper surface 25a. The valve body 43 can be peeled off, and the check valve 40 can be prevented from malfunctioning.

Further, in the discharge container 1 of the present embodiment, by providing the protruding portion 44 protruding from the valve main body 43 toward the top wall portion 32 of the lid body 30, the check valve is stopped in the closed state shown in FIG. The upward displacement of the valve 40 is regulated by the lid 30. Therefore, the check valve 40 does not open when the lid 30 is closed, and thus it is possible to prevent the contents from moving from the accommodation space S to the discharge port 23a. Therefore, it is possible to suppress a problem that the contents are ejected from the discharge port 23a as soon as the lid 30 is opened.

Further, in the discharge container 1 of the present embodiment, since the partition wall portion 25 as the valve seat portion is formed integrally with the discharge cap 20, the partition wall portion 25 is formed separately from the discharge cap 20. Compared with this, the number of parts can be reduced and the configuration becomes simple.

It goes without saying that the present invention is not limited to the above-described embodiment and can be variously modified without departing from the gist thereof.

For example, the discharge cap 20 may be attached to the mouth portion 11 of the container body 10 by screw connection. Further, the container body 10 may be a built-in type double container in which the inner layer body is incorporated inside the outer layer body, or may be a single layer container whose volume is reduced and deformed as the contents are discharged, instead of the double container. .. Further, the shapes of the engaging holding portion 35 and the engaged portion 46 may be reversed. That is, the engaged portion 46 provided on the check valve 40 may be tubular, and the engaged holding portion 35 of the lid 30 may be formed as a columnar protrusion that is inserted and held inside the engaged portion. Good.

1 Discharge container 10 Container body 11 Mouth 11a Protrusion 12 Body 13 Outer layer 14 Inner layer 20 Discharge cap 21 Top wall 22 Cylinder wall 22a Protrusion 23 Discharge cylinder 23a Discharge port 23b Lip 24 Outflow hole 25 Partition 25a Upper surface of partition wall 26 Inner cylinder 27 Seal cylinder 30 Lid 31 Peripheral wall 32 Top wall 33 Hinge 34 Seal wall 35 Engagement holding 35a Convex 35b Inclined surface 36 Grip 40 Check valve 41 Base 42 Elastic One piece 43 Valve body 44 Protruding part 45 Circular convex part 46 Engagement part S Containment space

Claims (3)

A container body having a tubular mouth and a body connected to the mouth to form a storage space for the contents inside.
A discharge cap that has a discharge port for discharging the contents and is attached to the outside of the mouth portion,
A lid that is arranged so as to cover the discharge port and is configured to be able to open and close the discharge port.
A partition wall having an outflow hole that serves as a flow path for the contents between the discharge port and the accommodation space.
A check valve that can open and close the outflow hole is provided.
The check valve is connected to the base portion via a tubular base portion held by the discharge cap and an elastic piece provided inside the base portion, and abuts on the partition wall portion to close the outflow hole. A valve body that opens the outflow hole away from the partition wall portion, a protruding portion that protrudes from the valve body, and a protruding portion that is provided at the tip of the protruding portion and is provided on the inner surface of the lid body in a closed state. It has an engaged portion that undercuts and engages with the engaged holding portion.
In the process of opening the lid, the engaged portion is pulled up by the lid to separate the valve body from the partition wall, and when the lid is further opened, the engaged portion is moved to the engaging holding portion. It has been configured to get out of,
The base is held by undercut engagement with the discharge cap.
A discharge container characterized in that the fitting strength of the base portion with respect to the discharge cap is larger than the fitting strength of the engaged portion with respect to the engaging holding portion. The discharge cap includes a top wall portion that covers the opening of the mouth portion and a tubular tubular wall portion that covers the outer periphery of the mouth portion.
The discharge container according to claim 1, wherein the partition wall is integrally connected to the top wall portion. The discharge container according to claim 1 or 2 , wherein the lid is integrally connected to the discharge cap via a hinge.

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