JP6153855B2 - Dispensing container - Google Patents

Description

  The present invention includes a container main body that contains the content liquid, and an extraction cap or an extraction pump that is attached to the mouth of the container main body. The content liquid is extracted by operating the squeeze of the container main body or the extraction pump. It relates to a dispensing container.

  As a container for storing cosmetic liquids such as lotion, shampoo, rinse, liquid soap, food seasonings, and other content liquids, a volume-reducing inner layer body with a content liquid storage space and this inner layer body And the outer layer body such as a bottle shape that accommodates the inside of the container, and the content liquid is poured out by squeezing the body part of the outer layer body, while after releasing the squeeze, from the outside air introduction opening provided in the outer layer body 2. Description of the Related Art There is known a double-structured dispensing container in which outside air is introduced between an inner layer body and an outer layer body so that the body portion of the outer layer body can be restored while reducing the volume of the inner layer body. In such a dispensing container, the content liquid in the container body can be poured out without replacing it with the outside air, so the contact of the outside air with the content liquid contained in the container body is reduced, and its deterioration and alteration Can be suppressed.

  By the way, in the above-mentioned pouring container, when the remaining amount of the content liquid decreases, it becomes difficult to form the outflow path of the content liquid inside the inner layer body, and the content liquid may not be smoothly poured out.

  Therefore, an adhesive layer extending in the vertical direction from the mouth portion toward the bottom portion is provided between the inner layer body and the outer layer body, and the inner layer body is held by the adhesive layer so as not to be deformed and reduced in the height direction. There is known a configuration in which the content liquid outflow passage is easily secured in the inner layer body even in a state where the content liquid is reduced, and the content liquid is smoothly poured out (see, for example, Patent Document 1).

Patent No. 4001367

  However, even in a dispensing container configured as shown in Patent Document 1, the content liquid contained in the container body is a relatively high-viscosity content liquid such as sauce, ketchup, honey, or creamy cosmetics. In some cases, there has been concern that the liquid content cannot be smoothly poured out when the remaining amount is low.

  An object of the present invention is to solve such a problem, and the object of the present invention is to enable smooth dispensing with a small remaining amount even in the case of a content liquid having a relatively high viscosity. It is to provide an outlet container.

The pouring container of the present invention comprises a container main body for containing the content liquid and a pouring cap attached to the mouth of the container main body, and the content liquid is discharged from the pouring cylinder of the pouring cap by squeezing the container main body. The container main body includes a volume-reducing and deformable inner layer body having a content liquid storage space, and the inner layer body is accommodated inside the inner layer body and between the inner layer body and the inner layer body. An outer layer body having an outside air introduction opening that communicates with the outside on the bottom surface, and a concave rib that divides the container body into a container upper part and a container lower part in the height direction over the entire circumference of the container body. The concave rib is formed so as to be bound inside, and the outside air introduced from the outside air introduction opening is restricted from flowing into the mouth side from the concave rib, and at least a part of the outer layer body is formed. that they are formed on stretchable bellows vertically And butterflies.

  According to the present invention, in the above configuration, the dispensing check valve that allows the dispensing of the content liquid from the dispensing cylinder and prevents the inflow of outside air from the dispensing cylinder to the inner layer body is the dispensing cap. Is preferably provided.

The dispensing container of the present invention includes a container main body that contains the content liquid and a dispensing pump that is attached to the mouth of the container main body, and the content liquid is discharged from the nozzle of the dispensing pump by operating the dispensing pump. A dispensing container for dispensing, wherein the container body contains a volume-reducing and deformable inner layer body having a content liquid housing space, and the inner layer body is accommodated inside and the inner layer body is externally connected to each other. An outer layer body having an outside air introduction opening communicating with the bottom surface, and a concave rib that divides the container main body into a container upper part and a container lower part in the height direction, and is provided on an inner side of the container main body. The concave rib restricts the outside air introduced from the outside air introduction opening from flowing into the mouth side from the concave rib, and at least a part of the outer layer body is vertically moved by the concave rib. and characterized in that it is formed in the extensible bellows in a direction That.

  According to the present invention, in the above configuration, outside air is allowed to be introduced between the inner layer body and the outer layer body from the outside air introduction opening, and air is allowed to flow out to the outside between the inner layer body and the outer layer body. It is preferable that a check valve for introducing outside air to be blocked is provided.

  According to the present invention, in the above configuration, it is preferable that a bottom lid member that covers the bottom portion is attached to a bottom portion of the outer layer body, and the check valve for introducing the outside air is provided on the bottom lid member.

  According to the present invention, in the above configuration, it is preferable that an adhesive layer for bonding the inner layer body and the outer layer body is provided closer to the mouth than the concave rib.

  According to the present invention, in the above configuration, it is preferable that the thickness of the inner layer body is thicker at a portion between the mouth portion and the concave rib than at a portion between the concave rib and the bottom surface.

  According to the present invention, when the remaining amount of the content liquid is reduced, the bottom side portion of the inner layer body that undergoes volume reduction deformation is inverted toward the mouth side starting from the concave rib, and the content liquid is poured out. Since it is easy to secure the flow path, even if the content liquid stored in the container body is relatively high in viscosity, it is smoothly replaced without replacing the content liquid with outside air when the remaining amount is low Can be dispensed. Therefore, this dispensing container can also be used as a container for storing a liquid having a relatively high viscosity.

  Further, according to the present invention, since the remaining little content liquid can be smoothly poured out as described above, it is possible to reduce the remaining content liquid remaining without being poured into the container body.

It is a front view of the extraction container which is a reference example . It is sectional drawing of the extraction container shown in FIG. It is sectional drawing which shows the state which started pouring content liquid from the extraction container shown in FIG. It is sectional drawing which shows the state from which the content liquid of the extraction container shown in FIG. It is sectional drawing which shows the state by which most content liquid of the extraction container shown in FIG. 1 was extracted. A Note Deyo which is one embodiment of the present invention and shows a main portion thereof in section.

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

A dispensing container 1 which is a reference example shown in FIG. 1 contains a liquid (content) with relatively high viscosity such as sauce, ketchup, honey and the like so as to be dispensed. A dispensing cap 20 is provided.

  As shown in FIG. 2, the container body 10 includes an outer layer body 11 that constitutes an outer shell thereof, and an inner layer body 12 that is accommodated inside the outer layer body 11.

  The outer layer body 11 is formed of a resin material into a bottle shape having a cylindrical mouth portion 11b at the upper end of the body portion 11a. The trunk | drum 11a has flexibility, and while being squeezed (squeezed) and being able to dent, it can restore | restore to the original shape from the depressed state.

  The inner layer body 12 is formed of a resin material in a bag shape that is thinner than the outer layer body 11, and its opening is connected to the mouth portion 11 b of the outer layer body 11. The inside of the inner layer body 12 is a storage space 12a that opens to the mouth portion 11b of the outer layer body 11, and the content liquid can be stored in the storage space 12a. The inner layer body 12 can be deformed and reduced so as to reduce its internal volume inside the outer layer body 11 as the content liquid stored in the storage space 12a is poured out and its internal capacity decreases.

  Such a container main body 10 can be comprised in the lamination peeling container also called a delamination container, for example. In this case, a laminated parison formed by co-extrusion of the synthetic resin for the outer layer body and the synthetic resin for the inner layer body having low compatibility is blow-molded using a mold, so that the inner layer body is formed on the inner surface of the outer layer body 11. It can be formed in a peeling container having a laminated structure in which 12 is peelably adhered.

  The bottom portion 11c of the outer layer body 11 is formed to have a smaller diameter than the body portion 11a, and an outside air introduction opening 13 is provided on the bottom surface 11d. The outside air introduction opening 13 can communicate between the outer layer body 11 and the inner layer body 12 to the outside. Therefore, even if the inner layer body 12 is deformed and deformed as the content liquid is dispensed, the outer layer body 11 can be maintained in the initial shape by introducing outside air between the outer layer body 11 and the inner layer body 12. .

In the reference example , the outside air introduction opening 13 opened a cut-off portion (pinch offline) formed on the bottom surface 11d of the outer layer body 11 by the joint of the mold when the container body 10 was formed by blow-molding the laminated parison. It is configured as a bottom split structure. Note that the outside air introduction opening 13 is not limited to the above structure, and may be other holes such as a through-hole formed by a drill or the like as long as it can communicate between the outer layer body 11 and the inner layer body 12 to the outside. It can also be configured.

  A bottom cover member 14 is attached to the bottom portion 11 c of the outer layer body 11. The bottom lid member 14 is formed in a bottomed cylindrical shape including a cylindrical peripheral wall 14 a and a bottom wall 14 b and covers the bottom portion 11 c of the outer layer body 11. The bottom lid member 14 can be made of resin, for example. A cylindrical mounting wall 14 c is coaxially and integrally provided inside the peripheral wall 14 a of the bottom cover member 14, and a female screw 14 d provided on the inner peripheral surface of the mounting wall 14 c is provided on the outer peripheral surface of the bottom portion 11 c of the outer layer body 11. The bottom cover member 14 is attached to the bottom 11c of the outer layer body 11 by screwing to the provided male screw 11e. The bottom cover member 14 may be configured to be mounted by fitting the mounting wall 14c to the outside of the bottom 11c of the outer layer body 11 and engaging them with an undercut. The peripheral wall 14a of the bottom cover member 14 is formed to have an outer diameter equivalent to that of the outer layer body 11, that is, the body portion 11a of the container body 10, and is connected to a step provided at the lower end of the body portion 11a so It has been.

  A space S is formed between the bottom wall 14 b of the bottom cover member 14 and the bottom surface 11 d of the outer layer body 11, and the outside air introduction opening 13 of the outer layer body 11 opens into this space S. An annular seal protrusion 14e is integrally provided on the inner peripheral surface of the mounting wall 14c, and the seal protrusion 14e contacts the outer peripheral surface of the bottom portion 11c of the outer layer body 11, whereby the bottom wall 14b of the bottom cover member 14 and the outer layer are formed. A space S provided between the body 11 and the bottom surface 11d is sealed.

  The bottom lid member 14 is provided with a check valve 16 as a check valve for introducing outside air. A cylindrical holding wall 14f is integrally provided on the inner surface of the bottom wall 14b of the bottom cover member 14, and the check valve 16 has an annular holding body 16a fitted inside the holding wall 14f, and the holding body 16a. The disc-like valve body 16b that is elastically connected is integrally formed of an elastic material such as a synthetic rubber or a resin material. The check valve 16 can be configured as a three-point valve, for example. The valve body 16b is in contact with the inner surface of the bottom wall 14b of the bottom cover member 14, closes the plurality of vent holes 14g provided in the bottom wall 14b, and moves in a direction away from the inner surface of the bottom wall 14b. The vent hole 14g can be opened. The check valve 16 having such a configuration is configured such that the outer layer body 11 and the inner layer body are formed from the outside air introduction opening 13 of the outer layer body 11 through the space S between the bottom surface 11d of the outer layer body 11 and the bottom wall 14b of the bottom cover member 14. The outside air can be introduced between the outer layer body 11 and the outer layer body 11 and the inner layer body 12 can be prevented from flowing out to the outside.

  The dispensing cap 20 is attached to the mouth portion 11b of the outer layer body 11 (container body 10). The dispensing cap 20 is formed of a resin material into a shape having a disk-shaped top wall 20a and a cylindrical wall 20b, and a female screw 20c integrally formed on the inner peripheral surface of the cylindrical wall 20b is an outer peripheral surface of the mouth portion 11b. And is fixed to the mouth portion 11b by being screw-coupled to a male screw 11f provided on the mouth portion 11b. In addition, it can also be set as the structure which replaces with the screw coupling | bonding of the internal thread 20c and the external thread 11f, and fixes the extraction | pouring cap 20 to the opening part 11b by other structures, such as an undercut. A pouring cylinder 20d is integrally provided on the axis of the top wall 20a of the pouring cap 20, and the content liquid stored in the container body 10 can be poured out from the pouring cylinder 20d. Further, a lid 20f is provided on the top wall 20a through a hinge 20e so as to be integrally openable and closable. By closing the lid 20f, the top wall 20a is covered and the dispensing tube 20d is attached to the top wall of the lid 20f. It can be closed with a closing plug 20g suspended from the lower surface.

  As shown in FIG. 1, an annular concave rib 30 is provided over the entire circumference of a substantially central portion in the height direction of the body portion 11 a of the container body 10. The concave rib 30 is formed by the container body 10, that is, the outer layer body 11 and the inner layer body 12 being united and bound to the inside over the entire circumference. The concave rib 30 is recessed in a groove shape on the outer peripheral surface side of the container body 10 and protrudes in a rib shape on the inner peripheral surface side. By the concave rib 30, the container body 10 is partitioned into a container upper part 10a and a container lower part 10b in the height direction in the standing posture. For example, when the laminated parison is blow-molded by using a mold, the concave rib 30 can be formed by providing a molding rib in a predetermined shape on the inner surface of the mold.

  The position where the concave rib 30 is provided is, for example, when the portion below the concave rib 30 of the inner layer body 12 is inverted toward the upper side (mouth portion 11b) from the concave rib 30 as a starting point. Although the tip of the inverted portion of 12 reaches the mouth portion 11b, it is preferable to set the position so as not to reach the top wall 20a of the pouring cap 20.

  In such a pouring container 1, as shown in FIG. 3, the lid 20f of the pouring cap 20 is opened and the pouring cylinder 20d of the pouring cap 20 is held in a posture facing downward, and in this state the container By squeezing the body portion 11 a of the main body 10 (outer layer body 11), the content liquid can be poured out from the dispensing cylinder 20 d of the dispensing cap 20. When the content liquid is poured out, the inner layer body 12 is deformed and deformed by the volume of the dispensed content liquid. When the squeeze of the container body 10 is released, outside air is introduced between the outer layer body 11 and the inner layer body 12 from the outside air introduction opening 13 of the outer layer body 11 via the check valve 16 and the space S, and the volume of the inner layer body 12 is reduced. The trunk portion 11a of the outer layer body 11 is restored to its original shape while being left. Therefore, even if the content liquid is poured out, outside air does not flow into the inner layer body 12 from the dispensing cylinder 20d, so that deterioration due to contact of the content liquid stored in the inner layer body 12 with the air is suppressed. Can do. In addition, when a relatively high viscosity liquid is stored as the content liquid, it is possible to prevent the outside air from flowing into the inner layer body 12 without providing a check valve in the dispensing cylinder 20d of the dispensing cap 20. Can do.

  Since the check valve 16 prevents the air introduced between the outer layer body 11 and the inner layer body 12 from flowing out to the outside, the inner layer body 12 is removed by squeezing the container body 10 again after releasing the squeeze. Furthermore, the content liquid can be poured out after volume reduction.

In the dispensing container 1 of the reference example , since the outside air introduction opening 13 is provided on the bottom surface 11d of the outer layer body 11, when the content liquid is poured out, the inner layer body 12 is a portion on the bottom side as shown in FIG. When the container body 10 is repeatedly squeezed and the release of the squeeze is repeated, and the content liquid is poured out from the container body 10, the inner layer body 12 is opened from the bottom side to the mouth portion. The volume is reduced and deformed while gradually peeling from the outer layer body 11 toward the side of 11b.

  When more than half of the content liquid stored in the container body 10 is poured out, that is, when the remaining amount of the content liquid stored in the container body 10 is less than half, as shown in FIG. 12 reverses from the concave rib 30 toward the mouth 11b. That is, the concave rib 30 provided at the substantially central portion of the container body 10 in the height direction is above the concave rib 30 for the outside air introduced from the outside air introduction opening 13 provided on the bottom surface 11d of the outer layer body 11 (mouth Inflow to the portion 11b) side is restricted, and this prevents the portion corresponding to the container upper portion 10a of the container body 10 above the concave rib 30 of the inner layer body 12 from being peeled off from the outer layer body 11, that is, volume reduction deformation. The portion of the inner layer body 12 corresponding to the container lower portion 10b of the container body 10 is inverted from the concave rib 30 to the mouth portion 11b side.

  When the content liquid is further poured out in a state in which the inner layer body 12 is inverted with the concave rib 30 as a starting point, and most of the content liquid is poured out and the remaining amount of the content liquid stored in the container body 10 is reduced, it is shown in FIG. As described above, the inverted portion of the inner layer body 12 is disposed along the portion that remains in close contact with the outer layer body 11 on the upper side of the concave rib 30 of the inner layer body 12, and the tip thereof reaches the mouth portion 11 b. Therefore, since the remaining amount of the content liquid is accommodated in the inner layer body 12 on the side closer to the mouth portion 11b than the concave rib 30, the content liquid is contained in the inner layer body 12 even if the remaining amount of the content liquid decreases. Therefore, it is possible to easily secure the pouring flow path, thereby smoothly pouring out the remaining content liquid.

Thus, in the dispensing container 1 of the reference example , the concave rib 30 is provided at the substantially central portion in the height direction of the container body 10, so that the volume is deformed when the remaining amount of the content liquid is reduced. The portion of the inner layer body 12 on the bottom side with respect to the concave rib 30 can be reversed toward the mouth portion 11b with the concave rib 30 as a starting point, thereby making it easy to secure the content liquid pouring channel. Therefore, even when the content liquid stored in the container body 10 has a relatively high viscosity, the content liquid can be smoothly poured out without being replaced with the outside air when the remaining amount is low. Moreover, by smoothly pouring out the remaining content liquid, the remaining content liquid remaining without being poured into the container body 10 can be reduced.

Figure 6 is a Note Deyo which is one embodiment of the present invention and shows a main portion thereof in section. As shown in FIG. 6, the dispensing cap 20 may be provided with a dispensing check valve 40.

  In the case shown in FIG. 6, the dispensing check valve 40 is configured as a ball valve. The pouring check valve 40 includes a cylindrical support tube 40a that is continuous with the pouring tube 20d of the pouring cap 20, and a ball 40b that is movably mounted along the internal passage of the support tube 40a. ing. A plurality of vertical ribs 40c are provided on the inner peripheral surface of the support cylinder 40a, and the balls 40b are supported inside the vertical ribs 40c. Further, a reduced diameter portion 40d that forms an opening having a smaller diameter than the ball 40b is integrally provided at the lower end of the support tube 40a.

  When the dispensing container 1 is in an upright posture with the dispensing cap 20 facing upward, the ball 40b comes into contact with the reduced diameter portion 40d, the dispensing check valve 40 is closed, and the inner layer body 12 is removed from the dispensing cylinder 20d. Inflow of outside air to the inside is prevented. On the other hand, when the container main body 10 is squeezed or tilted by 90 degrees or more in order to pour out the content liquid, the ball 40b is separated from the reduced diameter portion 40d and the dispensing check valve 40 is opened, and the inner layer body 12 is opened. The contained content liquid can be poured out from the dispensing cylinder 20d through the vertical ribs 40c. By providing such a check valve 40 for pouring, it is possible to reliably prevent the outside air from flowing into the inner layer body 12 after pouring the content liquid.

  The dispensing check valve 40 is not limited to the configuration of the ball valve described above, and allows the content liquid to be dispensed from the dispensing cylinder 20d and the outside air from the dispensing cylinder 20d to the inside of the inner layer body 12. As long as it can prevent the inflow of the gas, a check valve having another configuration such as a three-point valve can be used.

  Further, at least a part of the outer layer body 11 may be configured as a bellows that can be expanded and contracted in the vertical direction. In FIG. 6, the case where the bellows part 50 is comprised in the part of the bottom part side rather than the concave rib 30 of the outer layer body 11 is shown.

  If the container body 10 contains a relatively high content liquid, when the container body 10 is squeezed, the pressure in the space between the outer layer body 11 and the inner layer body 12 increases excessively. The provided seal protrusion 14e cannot maintain a sealed state with the bottom 11c of the outer layer body 11, and air between the outer layer body 11 and the inner layer body 12 may leak out from the seal protrusion 14e. . In this case, when the squeeze is released, the space between the outer layer body 11 and the inner layer body 12 becomes a negative pressure and the inner layer body 12 is deformed so as to increase its volume, and the outside air may flow into the inside. On the other hand, by providing the bellows part 50 in a part of the outer layer body 11, even if the pressure in the space between the outer layer body 11 and the inner layer body 12 is excessively increased due to the squeeze of the container body 10, the increase in the pressure is performed. Can be absorbed by the increase in the volume of the outer layer body 11 due to the extension of the bellows part 50, and the air between the outer layer body 11 and the inner layer body 12 can be prevented from leaking from the seal projection 14e. Therefore, by configuring at least a part of the outer layer body 11 to be bellows, the inflow of outside air into the inner layer body 12 can be further reliably prevented.

  The bellows portion 50 is not limited to the portion between the concave rib 30 and the bottom portion 11 c of the outer layer body 11, and is provided, for example, at a portion between the concave rib 30 and the mouth portion 11 b or on both upper and lower sides of the concave rib 30. For example, it may be provided on at least a part of the outer layer body 11. The bellows portion 50 can also be provided as a discontinuous ring having intermittent portions in the circumferential direction.

  Further, the adhesive layer 60 for bonding the outer layer body 11 and the inner layer body 12 may be provided on the upper side (mouth portion 11b) side than the concave rib 30. FIG. 6 shows a case where the outer layer body 11 and the inner layer body 12 are bonded to each other by a single belt-like adhesive layer 60 extending in the vertical direction so as to reach the concave rib 30 from the mouth portion 11b.

  By providing such an adhesive layer 60, peeling or volume-reducing deformation of the inner layer body 12 above the concave rib 30 from the outer layer body 11 is further reliably suppressed, and the inner layer starts from the concave rib 30. The body 12 can be reliably reversed. The adhesive layer 60 can be formed, for example, by disposing a belt-like adhesive resin at a predetermined position between the synthetic resin for the outer layer body and the synthetic resin for the inner layer body when forming the laminated parison. . Note that the adhesive layer 60 is not limited to one, and a plurality of adhesive layers may be provided. Further, the adhesive layer 60 is not limited to a belt shape, and may have various shapes such as an annular shape.

  Further, although not shown in detail, the inner layer body 12 may be configured such that the thickness of the inner layer body 12 is thicker at the portion between the mouth portion 11b and the concave rib 30 than at the portion between the concave rib 30 and the bottom portion 11c. By increasing the thickness of the inner layer body 12 at the portion between the mouth portion 11b and the concave rib 30, the peeling or volumetric deformation of the inner layer body 12 from the outer layer body 11 at that portion is further reliably suppressed, and the concave rib The inner layer body 12 can be reliably reversed starting from 30.

  The pouring container according to the present invention is not limited to the configuration in which the pouring cap 20 is attached to the mouth portion 11b of the outer layer body 11 of the container body 10 and the content liquid is poured out by squeezing the container body 10. 10 is attached to the mouth portion 11b of the outer layer body 11, and by operating the pouring pump, the content liquid stored in the inner layer body 12 is pumped by the pouring pump and is discharged from the nozzle to the outside. It can also be set as the structure to do. For example, when a creamy (milky) cosmetic is contained as a content liquid, it is preferable to use a dispensing container equipped with a dispensing pump. Even in a pouring container equipped with such a pouring pump, when the remaining amount of the content liquid decreases, the portion on the bottom side of the concave rib 30 of the inner layer body 12 that undergoes volume reduction deformation is provided with the concave rib 30. It can be reversed toward the mouth 11b as a starting point, and it is possible to make it easy to secure the content liquid pouring channel, and the same effect as the pouring container 1 provided with the above-described pouring cap 20 can be obtained. Can do.

  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 present embodiment, the container main body 10 is configured as a laminated peeling container in which the outer layer body 11 and the inner layer body 12 are integrally formed by blow molding of a laminated parison. After forming 11 and the inner layer body 12 separately, it can also be set as the structure of the double container which was made to incorporate the inner layer body 12 in the inside of the outer layer body 11. FIG.

  In addition, the dispensing container 1 of the present invention is not limited to the use of containing a relatively high content liquid such as sauce, ketchup, honey, creamy cosmetics, etc. Regardless of the viscosity, it can be used to contain various liquid contents.

DESCRIPTION OF SYMBOLS 1 Outlet container 10 Container main body 10a Container upper part 10b Container lower part 11 Outer layer body 11a Body part 11b Mouth part 11c Bottom part 11d Bottom surface 11e Male screw 11f Male screw 12 Inner layer body 12a Storage space 13 Outside air introduction opening 14 Bottom cover member 14a Perimeter wall 14b Bottom wall 14c Mounting wall 14d Female thread 14e Seal projection 14f Holding wall 14g Vent 16 Check valve (Check valve for introducing outside air)
16a Holding body 16b Valve body 20 Outlet cap 20a Top wall 20b Cylindrical wall 20c Female thread 20d Outlet cylinder 20e Hinge 20f Lid 20g Blocking plug 30 Concave rib 40 Outlet check valve 40a Support cylinder 40b Ball 40c Vertical rib 40d Diameter part 50 Bellows part 60 Adhesive layer S Space

Claims (7)

A pouring container comprising a container main body for containing the content liquid and a pouring cap attached to the mouth of the container main body, and squeezing the container main body from the pouring cylinder of the pouring cap. There,
The container body is
A volume-reducing and deformable inner layer body with a storage space for the content liquid;
An outer layer body that accommodates the inner layer body on the inside and has an outside air introduction opening on the bottom surface that communicates between the inner layer body and the outside.
A concave rib that divides the container main body into a container upper part and a container lower part in the height direction is formed to be bound inside the entire circumference of the container main body, and is introduced from the outside air introduction opening by the concave rib. While it is restricted that outside air flows into the mouth side from the concave rib,
At least a part of the outer layer body is formed in a bellows that can expand and contract in the vertical direction .   The dispensing cap is provided on the dispensing cap, which permits the dispensing of the content liquid from the dispensing tube and prevents the inflow of outside air from the dispensing tube to the inner layer body. The pouring container according to 1. A pouring container comprising a container main body for containing the content liquid and a pouring pump attached to the mouth of the container main body, and for pouring the content liquid from the nozzle of the pouring pump by operating the pouring pump. And
The container body is
A volume-reducing and deformable inner layer body with a storage space for the content liquid;
An outer layer body that accommodates the inner layer body on the inside and has an outside air introduction opening on the bottom surface that communicates between the inner layer body and the outside.
A concave rib that divides the container main body into a container upper part and a container lower part in the height direction is formed to be bound inside the entire circumference of the container main body, and is introduced from the outside air introduction opening by the concave rib. While it is restricted that outside air flows into the mouth side from the concave rib,
At least a part of the outer layer body is formed in a bellows that can expand and contract in the vertical direction .   A check valve for introducing outside air that allows outside air to be introduced between the inner layer body and the outer layer body through the outside air introduction opening and prevents outflow of air between the inner layer body and the outer layer body to the outside. The pouring container according to any one of claims 1 to 3, wherein is provided.   The dispensing container according to claim 4, wherein a bottom lid member that covers the bottom portion is attached to a bottom portion of the outer layer body, and the check valve for introducing the outside air is provided on the bottom lid member. The dispensing container according to any one of claims 1 to 5 , wherein an adhesive layer that bonds the inner layer body and the outer layer body is provided closer to the mouth than the concave rib. The thickness of the said inner layer body is thicker in the part between the said opening part and the said concave rib than the part between the said concave rib and the said bottom face, The any one of Claims 1-6. Pouring container.

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