JP6100059B2 - Dispensing container - Google Patents

Description

  The present invention relates to a dispensing container that has a double structure in which an inner layer body that accommodates contents is accommodated inside an outer layer body, and that contracts only the inner layer body as the contents are poured.

  Conventionally, for example, as a container for storing contents such as cosmetics such as shampoo, rinse, liquid soap, lotion, or food seasonings such as miso, cooking liquor, soy sauce, and sauce, 2. Description of the Related Art There is known a pouring container (a delamination container) that includes an outer layer body that detachably accommodates an inner layer body and that is configured to pour contents from a pouring cap attached to a mouth portion of the outer layer body. The dispensing container can keep the inner layer body volume-reduced by introducing outside air between the inner layer body and the outer layer body through the opening provided in the outer layer body when the contents are poured out. It is possible to prevent the contents inside the inner layer body from being replaced with the outside air as the objects are poured out, and to avoid the contact between the contents and the outside air as much as possible.

  In such a pouring container, a check valve is provided in the pouring path of the pouring cap in order to prevent the outside air from flowing into the inner layer body from the pouring outlet when the contents are poured out. As this check valve, there is one that not only prevents the inflow of outside air but also uses a ball valve type that can draw in the contents near the spout after pouring and prevent dripping from the spout. (For example, patent document 1). Further, in such a pouring container, there is one that uses a pinch-off portion at the bottom formed by coextrusion blow molding as an opening for introducing outside air between the outer layer body and the inner layer body (for example, a patent) Reference 2).

Japanese Patent Laid-Open No. 08-133307 Japanese Patent No. 3124620

  However, the check valve of the ball valve type as shown in Patent Document 1 has a configuration in which the ball valve moves in the pouring path to open and close the pouring path. There are cases where the discharge path cannot be blocked, and there is a possibility that the ball valve may move unexpectedly in the extraction path before and after the extraction work, and the discharge path may be opened. was there.

  An object of the present invention is to solve such a conventional problem, and an object of the present invention is to improve the sealing performance of the pouring channel while preventing liquid dripping from the pouring port to improve the inside of the inner layer body. An object of the present invention is to provide a dispensing container that can surely prevent the inflow of outside air into the container.

  The dispensing container of the present invention includes an inner layer body provided with an upper opening connected to a content storage portion, and an outer layer body provided with an opening for containing the inner layer body and introducing outside air between the inner layer body and the inner layer body. A pouring container comprising a pouring outlet for contents and a pouring cap attached to the mouth portion of the outer layer body, the pouring container communicating the upper opening and the pouring outlet, A pouring plug attached to the upper opening, a ball valve that is arranged in the pouring path so as to be movable along the pouring path, and functions as a check valve for opening and closing the pouring path, the pouring plug, and the A lift valve that is connected to a holding part fixed between the extraction cap and an elastically deformable connecting piece and closes the outlet of the extraction passage that opens toward the outlet; When the ball valve opens the dispensing path, the ball valve pushes the lift valve. Characterized in that it opens the serial outlet.

  In the above-described configuration, the lift valve is provided with a protrusion that protrudes into the extraction passage, and the protrusion is pushed by the ball valve when the ball valve opens the extraction passage, so that the outlet port Is preferably opened.

  In the above configuration, it is preferable that a plurality of ribs extending along the pouring path are provided on the inner peripheral surface of the pouring path, and the ball valve moves while being guided by the rib.

  In the said structure, it is preferable that the said opening is provided in the bottom part of the said outer-layer body.

  According to the present invention, since the ball valve and the lift valve are provided as check valves for opening and closing the pouring path provided in the pouring tap, after the contents are poured out, the ball valve is moved to move around the pouring port. It is possible to reliably prevent the inflow of outside air into the inner layer body by reliably closing the pouring path by the ball valve and the lift valve while pulling the contents to prevent liquid dripping from the pouring outlet. Further, when the ball valve opens the dispensing path, the lift valve is pushed by the ball valve so that the lift valve is opened. Therefore, the dispensing container is simply tilted without squeezing (pressing) the outer layer body. The contents can be poured out from the spout.

It is a front view of the extraction container which is one embodiment of the present invention. It is a principal part expanded sectional view of the extraction container shown in FIG. It is a bottom view of the pouring tap shown in FIG. It is sectional drawing which follows the AA line in FIG. It is a principal part expanded sectional view which shows the state which pours the contents of the extraction container shown in FIG.

  Hereinafter, the present invention will be described in more detail with reference to the drawings.

  A dispensing container 1 according to an embodiment of the present invention shown in FIG. 1 stores liquid contents such as food seasonings and has a container body 2 and a dispensing cap 3. Yes. As shown in FIG. 2, the container body 2 has a double structure having an inner layer body 4 and an outer layer body 5, and the dispensing cap 3 is attached to a mouth portion 5 a provided in the outer layer body 5.

  The inner layer body 4 constituting the container main body 2 is formed into a flexible bag body with, for example, a thin synthetic resin, and the inside thereof is a housing portion 4a for housing contents. The upper end portion of the inner layer body 4 is an upper opening 4b connected to the accommodating portion 4a, and the contents accommodated in the accommodating portion 4a can be poured out from the upper opening 4b.

  The outer layer body 5 forms an outer shell of the container body 2 and has the above-described mouth portion 5a and a body portion 5b integrally connected to the mouth portion 5a. The outer layer body 5 accommodates the inner layer body 4 in a peelable manner inside, and an upper opening 4b of the inner layer body 4 is fixed to the opening end of the mouth portion 5a. Further, a male screw portion 5 c is integrally provided on the outer peripheral surface of the mouth portion 5 a of the outer layer body 5. The container body 2 is not limited to the delamination type, and a double container in which the inner layer body (inner container) and the outer layer body (outer container) are individually molded and combined can be employed. The body can also be made of glass, metal or other materials.

  The container body 2 is formed by molding a laminated parison with a mold, and as shown in FIG. 1, a pinch-off portion 5e which is a cut-out portion of the laminated parison is provided on the bottom 5d. In this pinch-off portion 5 e, the cut-out portion of the inner layer body 4 is closed, but the cut-out portion of the outer layer body 5 is opened, and the opened cut-out portion of the outer layer body 5 is an opening 6. The opening 6 communicates between the inner layer body 4 and the outer layer body 5, and external air can be introduced between the inner layer body 4 and the outer layer body 5 through the opening 6.

  As shown in FIG. 2, the dispensing cap 3 is formed in a cylindrical shape having a cylindrical mounting cylinder portion 7 and a top wall 8 connected to the upper end of the mounting cylinder portion 7. A female threaded portion 7 a is integrally provided on the inner peripheral surface of the mounting cylinder portion 7, and this female threaded portion 7 a is screwed to a male threaded portion 5 c provided in the mouth portion 5 a of the outer layer body 5, so that the dispensing cap 3 is an outer layer body. 5 is attached to the mouth portion 5a. The top wall 8 of the dispensing cap 3 is provided with a cylindrical stepped portion 8a that protrudes upward. The stepped portion 8a is displaced from the axial center of the top wall 8 and is integrally provided with a spout (nozzle) 9. Is provided. The spout 9 protrudes in a trumpet shape from the upper surface of the stepped portion 8 a of the top wall 8, protrudes in a cylindrical shape from the lower surface of the stepped portion 8 a, and penetrates the top wall 8. The spout 9 communicates with the upper opening 4b of the inner layer body 4 so that the contents accommodated in the inner layer body 4 can be poured out to the outside (outside).

  The dispensing cap 3 is provided with an overcap 10 that can be opened and closed via a hinge 11. The overcap 10 is formed in a cylindrical shape having substantially the same diameter as the pouring cap 3, and can be engaged with the pouring cap 3 by means such as undercut to keep the pouring cap 3 closed. it can. A cylindrical plug body 10a is integrally provided on the inner surface of the overcap 10. When the overcap 10 is closed, the plug body 10a is inserted into the spout 9 and the spout 9 is closed by the plug 10a. It has become. Reference numeral 10b is a knob for opening and closing the overcap 10.

  The hinge 11 is disposed on the side opposite to the direction in which the spout 9 is shifted with respect to the axis of the top wall 8 of the spout cap 3. Thereby, the opened overcap 10 can be easily poured out from the spout 9 without getting in the way.

  As shown in FIG. 2, a spout 12 is attached to the spout cap 3. The pouring tap 12 is made of, for example, a synthetic resin. As shown in FIGS. 2 and 3, as shown in FIGS. 2 and 3, a substantially disc-shaped main body 13 and a cylindrical shape protruding upward from the outer peripheral edge of the main body 13. And a spacer portion 14. The spacer portion 14 has an outer diameter dimension substantially the same as the inner diameter dimension of the mounting cylinder portion 7 of the dispensing cap 3, and the dispensing plug 12 has the outer peripheral surface of the spacer portion 14 as the inner peripheral surface of the mounting cylinder portion 7. The upper end of the spacer portion 14 is brought into contact with the top wall 8 from the axial direction and is fitted inside the dispensing cap 3. By providing the spacer portion 14, a space is provided between the main body portion 13 of the spout stopper 12 attached to the spout cap 3 and the top wall 8 of the spout cap 3. A spline engaging portion 15 is provided between the outer peripheral surface of the spacer portion 14 and the inner peripheral surface of the mounting cylinder portion 7, and the spout stopper 12 is prevented from rotating with respect to the spout cap 3 by the spline engaging portion 15. Has been. An annular protrusion 7b extending in the circumferential direction is provided on the inner peripheral surface of the mounting cylinder portion 7, and the spout 12 is held in a state of being mounted on the spout cap 3 by the annular protrusion 7b.

  In this Embodiment, it is set as the structure which hold | maintains the pouring stopper 12 in the pouring cap 3, but it is not restricted to this, For example, after arrange | positioning the pouring stopper 12 in the upper opening 4b of the inner layer body 4, it is the mouth part 5a. If the pouring stopper 12 can be attached to the upper opening 4b of the inner layer body 4, such as a structure in which the pouring stopper 12 is sandwiched and fixed between the pouring cap 3 screwed into the upper opening 4b. Can also be adopted.

  A cylindrical fitting portion 16 is coaxially and integrally provided on the lower surface of the main body portion 13 of the spout 12, that is, the surface facing the accommodating portion 4 a side of the inner layer body 4. When the dispensing cap 3 is attached to the mouth portion 5 a of the outer layer body 5, the fitting portion 16 is fitted inside the upper opening 4 b of the inner layer body 4, and the dispensing plug 12 is attached to the upper opening 4 b of the inner layer body 4. Is done.

  As shown in FIGS. 2 and 3, the cylindrical portion 17 is coaxially and integrally provided in the main body portion 13 of the spout 12. The inside of this cylindrical part 17 serves as a pouring path 18 for communicating the upper opening 4b of the inner layer body 4 and the spout 9 of the pouring cap 3, and the contents accommodated in the accommodating part 4a of the inner layer body 4 are It can flow from the upper opening 4b to the spout 9 through the spout 18. As shown in FIGS. 2 and 4, four ribs are provided on the inner peripheral surface of the cylindrical portion 17, that is, on the inner peripheral surface of the pouring channel 18, with a space in the circumferential direction and extending along the axial direction of the pouring channel 18. 19 is provided integrally. A protrusion 19 a that protrudes radially inward of the extraction channel 18 is integrally provided at the upper ends of these ribs 19. In addition, as long as the ball valve 20 can be held in the extraction channel 18, a configuration in which the protrusion 19a is not provided may be employed. The lower portion of the cylindrical portion 17 is a conical inclined wall 17a having a diameter that decreases toward the accommodating portion 4a, and an inflow port 17b that opens toward the accommodating portion 4a at the lower end of the inclined wall 17a. Is provided.

  A ball valve 20 formed in a spherical shape by, for example, a steel material or a resin material is disposed inside the cylindrical portion 17, that is, the dispensing path 18. The ball valve 20 is supported on the outer peripheral surface by four ribs 19, guided along the ribs 19, and movable in the axial direction along the extraction path 18. Since the ball valve 20 is guided and moved by the rib 19 as described above, the ball valve 20 can be reliably moved in the axial direction in the pouring path 18 and the contents are passed through between the adjacent ribs 19. Can be efficiently poured out through the pouring path 18. The number of ribs 19 is not limited to four, and an arbitrary number can be provided.

  As shown in FIG. 2, when the pouring container 1 is in a standing posture with the pouring cap 3 up, the ball valve 20 moves downward in the pouring path 18 due to its own weight, and is placed on the inclined wall 17a serving as a valve seat. The abutment path 18 is closed by contacting the entire circumference, and the accommodating portion 4a and the spout 9 are not connected. On the other hand, when the dispensing container 1 is tilted by 90 degrees or more with respect to the standing posture, the ball valve 20 is separated from the inclined wall 17a and held by the protrusion 19a as shown by a two-dot chain line in FIG. It is possible to move in the extraction path 18. In the case where the rib 19 is not provided with the protrusion 19a, the ball valve 20 moves in the pouring path 18 to a position where the plate valve 21b described later is elastically displaced until it balances with its own weight. As a result, the ball valve 20 is opened, and the accommodating portion 4a and the spout 9 are communicated with each other via a gap between adjacent ribs 19 of the pour channel 18. Thus, the ball valve 20 is an open position where the contents flow from the accommodating portion 4a of the inner layer body 4 toward the spout 9 of the spout cap 3 away from the inclined wall 17a which is a valve seat, and the valve seat. It functions as a check valve that contacts the inclined wall 17a and moves to a closed position that prevents the flow of contents and outside air from the spout 9 toward the accommodating portion 4a to open and close the spout passage 18.

  A valve unit 21 formed of, for example, synthetic resin, rubber, elastomer, or the like is mounted in the space between the pouring cap 3 and the pouring tap 12. The valve unit 21 has a cylindrical holding portion 21a. One end of the holding portion 21a is fitted in an annular groove 13a formed coaxially with the tubular portion 17 on the upper surface of the main body portion 13 of the spout 12 and the other end in the axial direction is a spout cap. 3 is fitted in an annular groove 8b formed coaxially with the annular groove 13a on the lower surface of the top wall 8 and fixed between the dispensing cap 3 and the dispensing plug 12. The space between the pouring cap 3 and the pouring tap 12 is partitioned by the holding portion 21a, and the pouring path 18 is communicated with the pouring port 9 through the space inside the holding portion 21a.

  A plate-like valve 21b as a lift valve is provided inside the holding portion 21a in the radial direction. The plate-shaped valve 21b is formed in a disk shape coaxial with the holding portion 21a, and the inner periphery of the holding portion 21a is formed by three connecting pieces 21c (only two are shown in the figure) that are elastically deformable at the outer peripheral edge thereof. It is connected to the surface and is movable in the axial direction (vertical direction) with respect to the holding portion 21a by elastic deformation of these connecting pieces 21c. The plate-shaped valve 21b is provided with an outlet 17c that is disposed at an opening end facing the outlet 9 side of the cylindrical portion 17 and opens toward the outlet 9 of the outlet 18 when the outlet container 1 is in the standing posture. Blocked. Note that the connecting piece 21c is not limited to the above-described configuration, and may have various shapes as long as it can be elastically deformed between the holding portion 21a and the plate valve 21b, and the number of the connecting pieces 21c is arbitrarily set. Can do.

  In addition, a columnar protrusion 21d is integrally provided at the central portion of the lower surface of the plate-like valve 21b facing the extraction passage 18 side. The protruding portion 21d protrudes from the lower surface of the plate-shaped valve 21b toward the inside of the pouring path 18, and when the plate-shaped valve 21b is in contact with the opening end of the cylindrical portion 17, the tip of the protruding portion 21d is the ball valve 20. Has reached the path of travel. Therefore, as shown in FIG. 5, when the dispensing container 1 is tilted and the ball valve 20 moves away from the inclined wall 17 a to the open position where the protrusion 19 a is prevented from being detached, the protrusion 21 d is moved by the ball valve 20. When pressed, the plate-like valve 21b moves in the direction away from the opening end of the cylindrical portion 17 along the axial direction of the holding portion 21a while elastically deforming the connecting piece 21c, and opens the outlet 17c of the pouring channel 18. Further, when the pouring container 1 is returned to the standing posture and the ball valve 20 is in the closed position where it abuts against the inclined wall 17, the plate valve 21b abuts against the opening end of the tubular portion 17 by the elastic force of the connecting piece 21c. Returning to the state, the outlet 17c of the extraction channel 18 is closed. As described above, the plate-like valve 21b flows the contents from the accommodating portion 4a toward the spout 9 when the ball valve 20 opens the pouring passage 18, and the ball valve 20 closes the pouring when the ball valve 20 closes the pouring passage 18. It functions as a check valve that opens and closes the outlet 17c so as to prevent the flow of contents and outside air from the outlet 9 toward the accommodating portion 4a.

  In the pouring container 1 configured as described above, the pouring path 18 is closed by the ball valve 20 and the plate valve 21b in the standing posture shown in FIG. 18 can be improved and the contact of the contents accommodated in the accommodating portion 4a of the inner layer body 4 with the outside air can be reliably prevented.

  On the other hand, when the pouring container 1 is tilted, the ball valve 20 moves to the position indicated by the two-dot chain line in FIG. 2 due to its own weight, and the projection 21d is pushed by the ball valve 20 so that the plate valve 21b. Is opened, and the contents accommodated in the accommodating portion 4a of the inner layer body 4 are poured out from the upper opening 4b of the inner layer body 4 through the pouring passage 18 of the pouring stopper 12 and from the spout 9 of the pouring cap 3. be able to. At this time, since the plate-like valve 21b is opened by the movement of the ball valve 20 due to its own weight, the contents can be easily poured out by opening the pouring path 18 without squeezing the body part 5b of the outer layer body 5. it can.

  Further, the volume of the inner layer body 4 is reduced by introducing the outside air between the outer layer body 5 and the inner layer body 4 through the opening 6 provided in the bottom portion 5d of the outer layer body 5 as the contents are poured out. Can be maintained in a state. Thereby, it can suppress that the content inside the inner-layer body 4 is substituted with external air with the extraction of the content, and can avoid contact with a content and external air as much as possible.

  When the dispensing container 1 is returned to the original standing posture after the contents are poured out, the ball valve 20 is separated from the projection 21d, the plate valve 21b is returned to the closed state, and the outlet 17c of the dispensing passage 18 is the plate. 2, the ball valve 20 is moved to the position indicated by the solid line in FIG. 2 due to its own weight, and the dispensing path 18 is also blocked by the ball valve 20.

  At this time, as the ball valve 20 moves downward toward the inclined wall 17a, the contents near the tip of the spout 9 are drawn toward the side of the spout 18 (suck back). Liquid dripping from the tip can be effectively prevented. The effect of the suck back is to adjust the height of the protrusion 21d and adjust the elastic force and the like of the connecting piece 21c so that the ball valve 20 is directed to the position where the discharge valve 18 is closed before the plate valve 21b is closed. The ball valve 20 is designed so that it moves, or even after a liquid flow path (groove, embossing or the like) is provided on the sealing surface between the plate valve 21b and the outlet 17c and the plate valve 21b closes the outlet 17c. It can be enhanced by designing so that the content is drawn into the extraction channel 18 through the liquid flow path by the movement of.

  Thus, in the pouring container 1 of the present invention, the ball valve 20 and the plate-like valve 21b are provided as check valves for opening and closing the pouring passage 18 provided in the pouring tap 12, so that the pouring of the contents is performed. After exiting, the ball valve 20 is moved to the closed position to draw the contents in the vicinity of the spout 9 and prevent dripping from the spout 9, while the ball valve 20 and the plate valve 21b ensure the discharge path 18. It is possible to reliably prevent the inflow of outside air into the inner layer body 4. Further, when the ball valve 20 opens the dispensing path 18, the projection 21d is pushed by the ball valve 20 and the plate valve 21b opens, so that the outer layer body 5 is not squeezed (pressed), The contents can be poured out from the spout 9 simply by tilting the pour container 1.

  As described above, both the ball valve 20 and the plate-like valve 21b are opened by the movement of the ball valve 20 due to its own weight, and it is not necessary to squeeze the outer layer body 5 when the contents are poured out. It can be set as the structure which pours out the contents using the outer layer body 5. FIG.

  It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

  For example, in the above-described embodiment, the protruding portion 21d of the plate-like valve 21b is formed in a columnar shape. Other shapes such as a prism and a semicircular protrusion may be used.

  For example, in the embodiment described above, the opening 6 is provided in the bottom 5d of the outer layer body 5. However, the present invention is not limited to this, and if outside air can be introduced between the outer layer body 5 and the inner layer body 4, for example, Openings 6 can also be provided in other portions of the outer layer body 5 such as the body portion 5b and the mouth portion 5a of the outer layer body 5.

  Moreover, in the said embodiment, although it is set as the structure which pours out the content, without squeezing the outer layer body 5, it uses not only this but the thing in which the trunk | drum 5b can elastically deform as this outer layer body 5, and this outer layer It can also be set as the structure which squeezes the trunk | drum 5b of the body 5 and pours out the contents.

  Furthermore, in the said embodiment, although the spherical thing is used as the ball valve 20, it is not restricted to this, The thing of the shape which is accommodated in the inside of the extraction path 18 so that it can move freely and can open and close the said extraction path 18 is used. If it exists, what is not perfect spherical shape, for example, formed in the egg shape (rugby ball shape) etc. can also be used.

  Furthermore, in the above-described embodiment, the rib 19 is provided on the inner peripheral surface of the pouring path 18, but this is not limiting, and when the ball valve 20 is in an open state, the rib 19 flows into the pouring path 18. If the path is secured, the rib 19 may be not provided on the inner peripheral surface of the extraction path 18. Moreover, it can replace with the rib 19 and can also be set as the structure which provides the groove | channel extended along an axial direction in the internal peripheral surface of the extraction path 18.

  Further, in the embodiment, the projection 21d is provided on the plate valve 21b. However, the present invention is not limited to this, and the projection 21d may be provided on the ball valve 20, and the plate valve 21b and the ball valve may be provided. You may make it provide in both. Moreover, it is good also as a structure which pushes the plate-shaped valve 21b directly with the ball valve 20 to move, and does not provide the projection part 21d, but opens the extraction channel | path 18. FIG. Furthermore, when the ball valve 20 is formed in an egg shape (rugby ball shape) as described above, the plate-shaped valve 21b may be pushed at the tip in the long axis direction.

  Furthermore, in the said embodiment, although the lift valve is made into the plate-shaped valve 21b formed in flat form, it is not restricted to this, It moves upwards with respect to the opening end of the extraction path 18, and this extraction path A lift valve having various shapes can be used as long as it has a structure capable of opening 18.

DESCRIPTION OF SYMBOLS 1 Outlet container 3 Outlet cap 4 Inner layer body 4a Accommodating part 4b Top opening 5 Outer layer body 5a Mouth part 5d Bottom part 6 Opening hole 9 Outlet 12 Outlet plug 17c Outlet 18 Outlet path 19 Rib 20 Ball valve 21a Holding part 21b Plate valve (lift valve)
21d Protruding part 21c Connecting piece

Claims (4)

Provided with an inner layer body having an upper opening connected to the contents accommodating portion, an outer layer body for accommodating the inner layer body and an opening for introducing outside air between the inner layer body, and a spout for the contents A pouring cap attached to the mouth of the outer layer body,
A pouring passage for communicating the upper opening and the pouring port;
A ball valve that is movably disposed along the extraction path and functions as a check valve for opening and closing the extraction path;
A lift valve that is connected to a holding portion fixed between the pouring tap and the pouring cap via an elastically deformable connecting piece and closes the outlet of the pouring passage that opens toward the pouring port. And
When the ball valve opens the pouring path, the lift valve is pushed by the ball valve to open the outlet.   The lift valve is provided with a protruding portion that protrudes into the dispensing path, and when the ball valve opens the dispensing path, the protruding portion is pushed by the ball valve to open the outlet. The dispensing container according to claim 1, wherein the container is a dispensing container.   The dispensing container according to claim 1 or 2, wherein a plurality of ribs extending along the dispensing path are provided on an inner peripheral surface of the dispensing path, and the ball valve moves while being guided by the rib. .   The said opening is provided in the bottom part of the said outer-layer body, The extraction container as described in any one of Claim 1 to 3 characterized by the above-mentioned.

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