JP6629141B2 - Discharge container - Google Patents

Description

  The present invention relates to a discharge container that accommodates contents in a double container body having an inner layer body and an outer layer body, and discharges the contents from a discharge port of a discharge cap attached to a mouth. The present invention relates to a discharge container suitable for discharging a content containing a solid material.

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

  In addition, as such a discharge container, a valve body is provided inside the discharge cap to allow the flow of the contents from the container body to the discharge port, while the contents may flow backward from the discharge port side into the container body or the outside air. There is also known a configuration in which the inflow of air is prevented.

  For example, in Patent Literature 1, a container main body is composed of an outer layer body (outer container) and an inner layer body (inner container) which is housed inside the outer layer body and whose volume can be reduced and deformed. Describes a discharge container provided with a check valve (valve element) having a three-point valve structure that opens and closes a flow path of contents inside the container.

  In the discharge container having such a configuration, after the body of the container body is squeezed to discharge the contents, and then the squeeze of the body is released, the check valve opens the contents or outside air directed from the discharge port toward the container body. Is prevented, and the outer layer body is restored to its original shape while reducing the volume of the inner layer body by introducing the outside air between the outer layer body and the inner layer body from the intake hole provided in the discharge cap. Since the contents can be discharged without replacing the contents with the outside air, the contents remaining inside the container main body are hardly contacted with the air, so that the deterioration and deterioration of the contents can be suppressed.

JP 2014-105016 A

  By the way, the above-described discharge container is often used for storing liquid contents such as soy sauce and cosmetics, but for example, for storing contents containing some solid matter such as dressing. There is also a request to use it.

  However, when the discharge container as described above is used, the solid matter contained in the contents is caught in the gap of the check valve so that the check valve does not close, and the outside air passes through the open check valve so that the outside air is stored in the accommodation space. Of the contents, which may lead to deterioration or deterioration of the contents. Alternatively, there is a possibility that the flow path of the content is clogged with a solid material and the content cannot be discharged.

  Therefore, according to the present invention, even if the content containing a small amount of solid is discharged, the solid is hard to be caught in the gap of the valve body, the quality deteriorates due to the invasion of the outside air into the storage space, and the discharge occurs due to the clogging of the content flow path. An object of the present invention is to provide a discharge container that can suppress defects.

The present invention has been made to solve the above-mentioned problem, and a discharge container of the present invention includes a volume-reducing and deformable inner layer forming a space for accommodating contents and an outer layer surrounding the inner layer. A heavy container body,
A cap body having a discharge port for discharging the contents, and attached to the mouth of the double container body,
A valve body that is arranged inside the cap main body and that blocks outflow of contents from the storage space to the discharge port in a closed state;
An operating nozzle arranged in the content flow path between the housing space and the valve body, the operating nozzle being movable along an extending direction of a central axis of the mouth,
The working nozzle receives a pressing force from the contents flowing along with the squeeze of the outer layer body, moves toward the discharge port, and pushes and opens the valve body to discharge the contents. It is characterized by having.

  Further, in the discharge container of the present invention, it is preferable that the working nozzle has a plate portion connected to the nozzle tube portion and receiving a pressing force from a content flowing with squeezing of the outer layer body.

  In the discharge container according to the aspect of the invention, it is preferable that the plate be integrally connected to the operation nozzle.

  In the discharge container according to the aspect of the invention, it is preferable that the plate portion is disposed so as to extend perpendicularly to a center axis of the nozzle tube portion.

  Further, in the discharge container of the present invention, the working nozzle is slidable with respect to an inner peripheral surface of a tubular portion disposed inside the mouth portion in a radially outer side of the nozzle tubular portion. It is preferable to have an annular sliding part.

  Further, in the discharge container of the present invention, the nozzle tubular portion is integrally connected to a tubular portion disposed inside a mouth portion of the double container body via an elastic piece, It is preferable that it is configured to be elastically displaceable along the central axis of the shape.

  In the discharge container of the present invention, it is preferable that the valve element is a slit valve.

  ADVANTAGE OF THE INVENTION According to this invention, even if it discharges the content containing some solids, solids are hard to be caught in the clearance of a valve body, quality deterioration by the invasion of outside air into a storage space, or discharge by clogging of a content flow path. A discharge container capable of suppressing defects can be provided.

(A) is a side view which showed in partial cross section about the discharge container as one Embodiment which concerns on this invention, (b) is a bottom view of the discharge container of FIG. 1 (a). (A) is a partial enlarged view of the discharge container of FIG. 1 (a), and (b) is a view on arrow A in FIG. 2 (a). FIG. 2 is a side view showing a state in which contents are discharged from the discharge container of FIG. 1 in a partial cross section. (A) is a partial enlarged view of a discharge container as another embodiment according to the present invention, and (b) is a view on arrow B in FIG. 4 (a). FIG. 5 is a side view showing a state in which a content is discharged from the discharge container of FIG. 4 in a partial cross section.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1A, the discharge container 1 according to the present embodiment includes a double container main body 2, a cap main body 3 attached to the double container main body 2, a slit valve 4 (valve element), And an operation nozzle 5. In this specification, the claims, the abstract, and the drawings, the side where the lid 9 described later is located is the upper side (upper side in FIG. 1A), and the side where the double container body 2 is located is the lower side. (Lower side in FIG. 1A).

  First, the double container body 2 will be described. The double container main body 2 includes an inner layer body 21 and an outer layer body 22. The double-container main body 2 in the present embodiment is formed by biaxially stretch-blowing a test tubular preform in which the synthetic resin material of the inner layer body 21 and the synthetic resin material of the outer layer body 22 are laminated. However, the present invention is not limited to this. For example, the double container main body 2 may be formed by performing extrusion blow molding on a cylindrical laminated parison formed by laminating the synthetic resin material of the inner layer body 21 and the synthetic resin material of the outer layer body 22. Good. Further, the double container main body 2 may be formed by assembling the outer layer body 22 and the inner layer body 21 separately, instead of the laminated peeling container.

  Ethylene-vinyl alcohol copolymer resin (EVOH) or nylon is used as the material of the inner layer body 21 constituting the double container body 2. Further, as a material of the outer layer body 22, low-density polyethylene (LDPE) or high-density polyethylene resin (HDPE) is used. In particular, when LDPE is used, high squeezability can be imparted. However, the present invention is not limited to this embodiment. For example, when forming a laminated peeling container by performing biaxial stretch blow molding, polypropylene (PP) is used as the material of the inner layer body 21 and the material of the outer layer body 22 is used as the material of the outer layer body 22. Polyethylene terephthalate (PET) may be used. Further, as the material of the inner layer body 21 and the outer layer body 22, other resins having low mutual compatibility can be used.

  The inner layer body 21 is formed so as to be deformable to reduce the volume. In the present embodiment, the inner layer body 21 is obtained by peeling off the outer layer body 22 of the double container main body 2 formed in a laminated state. The inner layer body 21 forms a housing space S for housing contents therein.

  The outer layer body 22 has a body 22b having reversible flexibility and a bottom 22c closing a lower end of the body 22b connected to a cylindrical mouth 22a. As shown in FIG. 2A, a male screw portion 22d is provided on the outer peripheral surface of the mouth portion 22a. The mouth 22a is provided with a through hole 22e for taking in air between the inner layer body 21 and the outer peripheral surface provided with the through hole 22e. A notched groove 22f is provided. In addition, in this example, although the trunk | drum 22b is made into the square tube shape which a cross section becomes substantially square, it is not limited to this and may be cylindrical, for example. Further, between the inner layer body 21 and the outer layer body 22, there is provided an adhesive band 6 which extends in the up-down direction and partially joins the inner layer body 21 and the outer layer body 22. As shown in (b), four adhesive strips 6 are evenly arranged in the circumferential direction. Note that the adhesive band 6 is not an essential component, and the position and number thereof are not particularly limited.

  As shown in FIG. 2A, the cap body 3 includes an outer peripheral wall 31 surrounding the mouth 22 a, and an inner peripheral surface of the outer peripheral wall 31 has a female screw portion corresponding to the male screw portion 22 d of the mouth 22 a. 31a are formed. A top wall 32 is integrally connected to an upper end of the outer peripheral wall 31. Further, at the center of the upper surface of the top wall 32, a discharge cylinder 33 forming a discharge port 33a for the content is provided. On the lower surface of the top wall 32, an annular upper fitting groove 34 is provided. Further, an outside air introduction hole 35 penetrating the top wall 32 is provided radially outside the upper fitting groove 34. Note that the lower end of the outer peripheral wall 31 is in airtight contact with the mouth 22a, and a ventilation path communicating with the through hole 22e is provided between the mouth 22a and the outer peripheral wall 31.

  In addition, in this embodiment, although the groove part 22f which cuts out the male screw part 22d in the up-down direction is used as a ventilation path, it is not limited to this aspect. The gap between the male screw part 22d and the female screw part 31a may be used as a ventilation path without providing the groove 22f.

  In the present embodiment, the outside air introduction hole 35 is provided in the top wall 32 of the cap body 3 and the through hole 22e is provided in the opening 22a so that outside air is introduced into the space between the outer layer body 22 and the inner layer body 21. Configuration (external air is introduced through a minute gap between the outer surface of the outer cylindrical portion 72 of the valve fixing member 7 described later and the inner surface of the cap body 3 and a gap between the outer surface of the opening 22 a of the double container body 2 and the inner surface of the cap body 3. ), But is not limited to this embodiment. For example, although not shown, similarly to Patent Document 1 (Japanese Unexamined Patent Application Publication No. 2014-105016), an outside air introduction valve protruding from the outer surface of a base portion 41 (described later) of the slit valve 4 is formed, and the outside air introduction hole 35 is formed from below. The outside air introduction valve may be releasably brought into contact with the lower surface of the top wall 32 of the cap body 3 so as to cover it, and a vent hole serving as an air flow passage may be provided at the outer edge of a partition wall 71 (described later) of the valve fixing member 7. . Alternatively, a hole for introducing outside air may be formed in the body portion 22b and the bottom portion 22c of the double container body 2, and a valve body that opens and closes the hole may be provided. Further, when a pinch-off portion is formed in the bottom portion 22c of the double container main body 2, outside air may be introduced into a space between the outer layer body 22 and the inner layer body 21 from a slit provided in the pinch-off portion. .

  The slit valve 4 is disposed inside the cap body 3 and between the top wall 32 of the cap body 3 and the valve fixing member 7. Here, the valve fixing member 7 is made of a synthetic resin, and is mounted inside the cap body 3. The valve fixing member 7 includes a partition wall 71 disposed so as to cover an upper opening of the inner layer body 21, and an outer cylindrical portion 72 erected from the outer peripheral edge of the partition wall 71. A central opening 71 a is formed in the center of the partition wall 71, and a fine gap that serves as an air flow path is formed between the outer surface of the outer cylinder 72 and the inner surface of the cap body 3. An annular lower fitting groove 73 is provided on the upper surface of the partition wall 71.

  The slit valve 4 includes a cylindrical base portion 41 and a disc-shaped valve body portion 42 provided inside the base portion 41. As shown in FIG. 2B, eight slits 43 extending radially from the center are formed in the valve body portion 42, and are equally arranged in the circumferential direction. The upper end of the base 41 is fitted in the upper fitting groove 34, and the lower end of the base 41 is fitted in the lower fitting groove 73. The slit valve 4 is made of a soft material such as rubber or elastomer, and is elastically deformable. The slit valve 4 shown in FIG. 2A is in a closed state, and blocks outflow and backflow of the contents from the storage space S to the discharge port 33a, and prevents outside air from the discharge port 33a into the storage space S. Inflow is blocked.

  The working nozzle 5 is disposed in the content flow path between the storage space S and the slit valve 4 so as to be movable along the extending direction (axial direction) of the central axis of the mouth 22a. In the present embodiment, the working nozzle 5 is disposed inside the nozzle holding member 8 mounted inside the mouth 22a. Here, the nozzle holding member 8 is inclined downward from the lower end of the cylindrical portion 81, the flange 82 extending radially outward from the upper end of the cylindrical portion 81, and the lower end of the cylindrical portion 81. A reduced diameter portion 83 extending radially inward, which restricts downward movement of the working nozzle 5. The lower opening 83a at the center of the reduced diameter portion 83 serves as a flow path for the contents. In the present example, an annular step 74 provided on the partition wall 71 of the valve fixing member 7 fits over the cylindrical portion 81.

  The working nozzle 5 includes a substantially cylindrical nozzle tube portion 51 disposed coaxially with the mouth portion 22a, a large-diameter portion 52 extending from a lower portion of the nozzle tube portion 51 to extend radially outward while being inclined downward. An annular sliding portion 53 provided on the outer edge of the diameter portion 52 and slidably in contact with the inner peripheral surface of the cylindrical portion 81, and a flat portion connected to a lower portion of the nozzle cylindrical portion 51 via a connecting portion 54. A disk-shaped plate portion 55. The plate portions 55 are arranged at intervals below the nozzle tube portion 51 (on the side of the accommodation space S), and extend perpendicular to the center axis of the nozzle tube portion 51. The upper portion of the nozzle cylinder 51 has a smaller diameter than the opening diameter of the central opening 71a, and is configured to be located radially inward of the radial outer end 43a of the slit 43. Thereby, the upper part (tip part) of the nozzle cylinder part 51 can be inserted into the central opening 71a, and the valve body part 42 can be pushed and opened smoothly.

  The plate portion 55 is disposed in a content flow path from the storage space S toward the slit valve 4, and is formed from a content flowing from the storage space S to the slit valve 4 when the body portion 22 b of the outer layer body 22 is squeezed. Of pressing force. When the plate portion 55 receives the pressing force from the contents, the operation nozzle 5 moves toward the slit valve 4. Note that, even when the plate portion 55 is not provided, when the body portion 22b is squeezed, the large-diameter portion 52 and the like receive a pressing force from the contents, so that the working nozzle 5 moves toward the slit valve 4. It has become. When the tip of the nozzle cylinder 51 contacts the lower surface of the valve body 42 and the operating nozzle 5 further moves toward the discharge port 33a, the valve body 42 of the slit valve 4 is pushed open as shown in FIG. The nozzle cylinder 51 enters the inside of the valve 4, and the contents can be discharged. FIG. 3 shows a state in which the working nozzle 5 has moved to the discharge port 33a side to the maximum. The contents in the storage space S are formed by the lower opening 83a of the nozzle holding member 8 constituting the contents flow path, the inside of the nozzle tube 51, the tip opening 51a of the nozzle tube 51, the inside of the base 41, and the discharge tube 33. The liquid passes through the inside and is discharged from the discharge port 33a.

  When the squeezing of the body 22b is released after discharging the contents, the valve body 42 of the slit valve 4 is restored, and the operating nozzle 5 pushed down by the restoring force of the valve body 42 causes the working nozzle 5 to be pressed down as shown in FIG. And returns to the original position shown in FIG.

  The working nozzle 5 receives the pressing force from the content flowing through the content flow path and moves to the discharge port 33 a side, and pushes open the valve body 42 of the slit valve 4 to enter the slit valve 4. The configuration is not particularly limited as long as the configuration has the portion 51. For example, the shape of the plate portion 55 is not a flat disk shape but a polygonal shape or an annular shape. It may be arranged, the plate portion 55 may be inclined, or the like, and can be appropriately set depending on the contents.

  The cap body 3 is provided with a lid 9 that can be opened and closed. The lid 9 is formed in a topped cylindrical shape having substantially the same diameter as the cap main body 3, and is connected to the outer peripheral wall 31 of the cap main body 3 by a hinge 91 so as to cover the discharge cylinder 33. . A sealing cylinder 93 extending downward is provided on the top wall 92 of the lid 9. When the lid 9 is closed, the sealing cylinder 93 fits on the inner peripheral surface of the discharge cylinder 33 and closes the discharge port 33 a. It is supposed to. Further, a holding cylinder portion 94 is provided radially inside the sealing cylinder 93. When the lid 9 is closed, the holding cylinder 94 can prevent the valve body 42 from opening and the contents from flowing out. Further, when closing the lid 9 after discharging the contents, the operation of closing the valve body portion 42 by the restoring force can be assisted, and the operation nozzle 5 can be urged to return to the original position. On the side of the lid 9 facing the hinge 91, a knob 95 serving as a finger when opening the lid 9 is provided.

  In the discharge container 1 configured as described above, when the body 22b is squeezed, the operating nozzle 5 pushes the valve body 42 of the slit valve 4 open to discharge the contents. The content that has passed through the working nozzle 5 when discharging the content is less likely to contact the valve body 42 of the slit valve 4. For this reason, for example, when discharging a content containing a small amount of solid matter such as a dressing, the solid matter is less likely to be caught in the slit 43. As a result, it is possible to prevent the outside air from entering the content storage space S and deteriorating the quality, or preventing the flow path of the content from being clogged with solids and causing a discharge failure.

  When the squeeze to the body 22b is released after the discharge of the contents, the operation nozzle 5 returns to the original position, so that the contents remaining in the operation nozzle 5 are also drawn into the storage space S side, and the slit 43 is provided. Solid matter is harder to be caught.

  Further, as shown in FIG. 3, when the working nozzle 5 moves to the discharge port 33a side to the maximum, the tip of the nozzle cylinder 51 does not protrude beyond the tip of the valve body 42. With the restoration of 42, the working nozzle 5 can be smoothly pushed back to the original position shown in FIGS.

  In the present embodiment, the plate portion 55 is disposed so as to extend perpendicular to the central axis of the nozzle tube portion 51, so that the content flowing from the storage space S toward the discharge port 33a flows in the flow direction. On the other hand, the plate portion 55 extends vertically. This facilitates transmission of the pressing force from the flowing content to the nozzle cylinder portion 51 via the plate portion 55, so that the pressing force on the body portion 22b related to the discharge of the content can be reduced.

  Further, in the present embodiment, the plate portion 55 is disposed above the lower opening 83a formed in the reduced diameter portion 83, and the plate portion 55 is disposed so as to overlap the lower opening 83a in plan view. Is easy to flow toward the plate portion 55. Accordingly, the pressing force from the contents is easily transmitted to the nozzle cylinder portion 51 via the plate portion 55, so that the pressing force on the body 22b related to the discharge of the contents can be further reduced.

  Further, in the present embodiment, the large diameter portion 52 of the working nozzle 5 is configured to easily receive the pressing force from the content flowing from the storage space S toward the discharge port 33a. Is easily transmitted, and the pressing force on the body 22b related to the ejection of the contents can be further reduced.

  Further, in the present embodiment, since the content is configured to pass only through the inside without passing through the outside of the nozzle tube portion 51, the content is hardly contacted by the valve body portion 42, and solid matter is hardly caught in the slit 43. Has become.

  Hereinafter, another embodiment of the present invention will be described. Note that portions having the same basic functions as those of the above-described embodiment are denoted by the same reference numerals in the drawings, and description thereof will be omitted.

  In the discharge container 10 shown in FIG. 4A, the cylindrical nozzle cylinder 51 constituting the working nozzle 15 is integrally connected to the cylinder 81 of the nozzle holding member 18 via the elastic piece 56. The nozzle tube portion 51 is connected to the tube portion 81 by three elastic pieces 56 as shown also in FIG. 4B, and inside the tube portion 81 along the axial direction of the mouth 22a. It can be elastically displaced. A plate portion 55 is connected to a lower portion of the nozzle tube portion 51 via a connection portion 54. In the present embodiment, the connecting portion 54 and the plate portion 55 are formed separately from the nozzle tube portion 51, and the connecting portion 54 is assembled to the nozzle tube portion 51. However, the present invention is not limited to this. The plate 54 and the plate 55 may be formed integrally with the nozzle cylinder 51.

  When discharging the contents using the discharge container 10, as shown in FIG. 5, the lid 9 is opened, the discharge container 10 is set in the inverted posture, and the body 22 b is squeezed. The contents of the storage space S flow toward the discharge port 33a, and press the plate portion 55 to move the nozzle cylinder 51 toward the discharge port 33a. The nozzle cylinder 51 pushes open the valve body 42 of the slit valve 4 and enters the inside of the slit valve 4. Thus, the contents stored in the storage space S can be discharged. When the squeeze is released after discharging the contents, the nozzle cylinder 51 returns to the original position by the restoring force of the elastic piece 56 in addition to the restoring force of the valve body 42.

  In the discharge container 10 of the present embodiment, by connecting the nozzle tubular portion 51 and the tubular portion 81 with the elastic piece 56, the restoring force of the elastic piece 56 is independent of the restoring force of the valve body 42. The nozzle cylinder 51 can be returned to the original position by utilizing the same.

  The technical scope of the present invention is not limited to the above-described embodiment, and various changes can be made without departing from the spirit of the present invention. For example, in the above-described embodiment, the cap body 3 is configured to be screwed into the mouth 22a of the double container body 2. However, the present invention is not limited to this. It may be configured to be mounted by tapping or the like. Further, in the above embodiment, the lid 9 is configured to be opened and closed with the hinge 91 as a fulcrum. However, the configuration is not limited thereto, and the lid 9 may be screwed to the cap body 3 by screw engagement. . It is also possible to provide a valve body having another structure that can be pushed and opened by the operation nozzle 5 instead of the slit valve 4. For example, a disk-shaped valve having three elastic arms at a tubular base portion can be provided. It can be a three-point valve to which the body is connected. In addition, the present invention includes contents including some solids, including sauces such as pasta sauce, pizza sauce, Worcester sauce, tonkatsu sauce, etc., and liquid seasonings containing ingredients such as ketchup, mayonnaise, dressing and liquid miso. Suitable for storing and discharging applications.

DESCRIPTION OF SYMBOLS 1 Discharge container 2 Double container main body 3 Cap main body 4 Slit valve (valve element)
5 Working Nozzle 6 Adhesive Band 7 Valve Fixing Member 8 Nozzle Holding Member 9 Lid 10 Discharge Vessel 15 Working Nozzle 18 Nozzle Holding Member 21 Inner Layer 22 Outer Layer 22a Opening 22b Body 22c Bottom 22d Male Thread 22e Through Hole 22f Groove 31 Outer peripheral wall 31a Female thread part 32 Top wall 33 Discharge cylinder 33a Discharge port 34 Upper fitting groove 35 Outside air introduction hole 41 Base part 42 Valve body part 43 Slit 43a Radial outer end of slit 51 Nozzle cylinder part 51a Tip opening 52 Large diameter part 53 Sliding part 54 Connecting part 55 Plate part 56 Elastic piece 71 Partition part 71a Central opening 72 Outer cylinder part 73 Lower fitting groove 74 Annular step part 81 Cylindrical part 82 Flange part 83 Reducing diameter part 83a Lower opening 91 Hinge 92 Top Wall 93 Seal tube 94 Holding tube unit 95 Knob unit S Housing space

Claims (7)

A double container main body including a volume-reducible deformable inner layer forming a storage space for contents and an outer layer surrounding the inner layer,
A cap body having a discharge port for discharging the contents, and attached to the mouth of the double container body,
A valve body that is arranged inside the cap main body and that blocks outflow of contents from the storage space to the discharge port in a closed state;
An operating nozzle arranged in the content flow path between the housing space and the valve body, the operating nozzle being movable along an extending direction of a central axis of the mouth,
The working nozzle receives a pressing force from the contents flowing along with the squeeze of the outer layer body, moves toward the discharge port, and pushes and opens the valve body to discharge the contents. Having a discharge container.   2. The discharge container according to claim 1, wherein the operation nozzle has a plate portion connected to the nozzle cylinder portion and receiving a pressing force from a content that flows with squeezing of the outer layer body. 3.   The discharge container according to claim 2, wherein the plate portion is integrally connected to the operation nozzle.   4. The discharge container according to claim 2, wherein the plate portion is arranged to extend perpendicular to a central axis of the nozzle tube portion. 5.   The operating nozzle has an annular sliding portion that is slidable on an inner peripheral surface of a cylindrical portion disposed inside the mouth portion on a radially outer side of the nozzle cylindrical portion. 5. The discharge container according to claim 4.   The nozzle tubular portion is integrally connected to a tubular portion disposed inside the mouth portion of the double container body via an elastic piece, and is elastically displaceable along a central axis of the tubular portion. The discharge container according to any one of claims 1 to 4, which is configured. The discharge container according to any one of claims 1 to 6, wherein the valve element is a slit valve.

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