JP2018167884A - Layered peeling container - Google Patents

Abstract

To provide a layered peeling container which can securely peel off an inner layer body from an outer layer body when the outer layer body restores to an original shape after extraction of contents, so that an outside air leading passage is securely formed toward the side of a bottom portion from the outside air leading passage between the inner layer body and the outer layer body by an initial peeling process.SOLUTION: In a layered peeling container 1 which has a bottle shaped outer layer body 2 that comprises an opening portion 11, a drum portion 12 and a bottom portion 13, and an inner layer body 3 which is peelably layered on an inner face of the outer layer body 2 so as to be peeled off freely, an outside air leading hole 14, which penetrates the outer layer body 2 in the opening portion 11 and leads between the outer layer body 2 and the inner layer body 3, is provided. The layered peeling container 1 is characterized to have at least one first longitudinal rib 20 which is provided at a lower portion of the outside air leading hole 14 of the drum portion 12, and at least one second longitudinal rib 21 which is provided at an interval in the vertical direction with respect to the first longitudinal rib 20 in a portion of the lower side compared with the first longitudinal rib 20 of the drum portion 12.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a delamination container in which a volume-reducing and deformable inner layer body is releasably laminated on the inner surface of a bottle-shaped outer layer body, and in particular, an outside air introduction hole connected between the outer layer body and the inner layer body has a mouth. It relates to what is provided.

  As a container for storing cosmetics such as lotion, toiletries such as shampoo and rinse or liquid soap, food seasonings such as soy sauce, etc., the bottle-shaped outer layer body and the inner surface of the outer layer body are detachably laminated. And a delamination container (also called a delamination container) that has an inner layer body that can be deformed and deformed, and has an outer air introduction hole that extends between the outer layer body and the inner layer body through the outer layer body at the mouth. (See, for example, Patent Document 1).

  At the mouth of the delamination container, for example, a pouring cap having a structure in which a check tube is provided in a pouring cylinder for pouring contents, and a check valve is provided in an opening that communicates the outside air introduction hole to the outside Is installed. The delamination container equipped with such a pouring cap can pour out the contents by squeezing (pressing) the body part, while the squeeze of the body part is released, the outside air introduction hole Since the outside layer is reduced in volume by introducing outside air between the outer layer body and the inner layer body, that is, only the outer layer body can be restored to the original shape without replacing the contents with the outside air. The contact between the contents and the outside air can be suppressed, and deterioration and alteration of the contents stored in the container can be suppressed.

JP 2007-290746 A

  The laminated peeling container having the above configuration is generally subjected to an initial peeling treatment of the inner layer body in the manufacturing process. The initial peeling process of the inner layer body is to form a delamination container by blow molding and then suck out the air inside the inner layer body from the mouth, or blow air into the space between the outer layer body and the inner layer body from the outside air introduction hole. Then, the inner layer body is once separated from the outer layer body, and then air is supplied from the mouth into the inner layer body to return the inner layer body to the outer layer body side. By performing such an initial peeling process, the inner layer body can be easily peeled from the outer layer body, and when the outer layer body is restored to its original shape after the contents are poured out, the inner layer body is reliably removed from the outer layer body. Can be peeled off.

  However, in the conventional delamination container, the inner layer body that has been peeled off from the outer layer body and then returned to the outer layer body side is in close contact with the inner surface of the outer layer body even when the inner layer body is subjected to an initial peeling process. Therefore, there is a problem in that an outside air introduction path from the outside air introduction hole toward the bottom side is not formed between the inner layer body and the outer layer body, and the inner layer body is difficult to be separated from the outer layer body.

  An object of the present invention is to solve such problems, and an object of the present invention is to introduce outside air from the outside air introduction hole toward the bottom side between the inner layer body and the outer layer body by the initial peeling process. To provide a delamination container capable of reliably peeling an inner layer body from an outer layer body when the outer layer body is restored to its original shape after the content has been poured out so that the path is reliably formed It is in.

  The delamination container of the present invention is a bottle-shaped outer layer body provided with a cylindrical mouth portion, a body portion connected to the mouth portion, and a bottom portion connected to the body portion, and is peelably laminated on the inner surface of the outer layer body. A volume-reducing and deformable inner layer body having a shape corresponding to the outer layer body, and an external air introduction hole that penetrates the outer layer body and is continuous between the outer layer body and the inner layer body is provided in the mouth portion. A delamination container having at least one first vertical rib provided in a portion of the trunk portion below the outside air introduction hole, and lower than the first vertical rib of the trunk portion. It has at least 1 2nd vertical rib provided in the part at intervals in the up-down direction with respect to this 1st vertical rib.

  In the delamination container according to the present invention, in the above configuration, it is preferable that the second vertical rib is provided so as to be shifted in the circumferential direction with respect to an extension line of the first vertical rib.

  In the above configuration, the delamination container of the present invention is provided with a neck ring at the lower end of the mouth, and the neck ring is cut along a reference line that passes through the axis of the outside air introduction hole and extends in the vertical direction. It is preferable that a notch is provided.

  The laminated peeling container of the present invention is provided with one first vertical rib and two second vertical ribs on both the left and right sides of the body portion with the reference line interposed therebetween in the above configuration. Is preferred.

  In the above configuration, the delamination container of the present invention has a shoulder portion in which the trunk portion is connected to the lower end of the mouth portion and expands in diameter downward, and a trunk main body portion having a substantially constant outer diameter connected to the shoulder portion. It is preferable that the first vertical rib and the second vertical rib are provided on the shoulder portion.

  The delamination container according to the present invention has the above-described configuration, wherein the first vertical rib and the second vertical rib are directed downward about the axis of the outside air introduction hole as viewed from the axial direction of the outside air introduction hole. It is preferably provided within a range of 90 degrees.

  In the above-described configuration, the delamination container according to the present invention has at least one third vertical longitudinally spaced apart from the second vertical rib in the lower portion of the body portion with respect to the second vertical rib. It can be set as the structure by which the rib is provided.

  In the above configuration, the delamination container according to the present invention may be configured such that the same number of the third vertical ribs as the second vertical ribs are provided on the corresponding extension lines of the second vertical ribs.

  The laminated peeling container according to the present invention has the above-described configuration, wherein the third vertical rib is in a range of 90 degrees facing downward about the axis of the outside air introduction hole as viewed from the axial direction of the outside air introduction hole. It can be set as the structure provided.

  The laminated peeling container of the present invention may have a configuration in which a gap is provided between the outer layer body and the inner layer body at a portion where the third vertical rib is provided in the above configuration.

  According to the present invention, the outer layer is surely formed between the inner layer body and the outer layer body from the outer air introduction hole toward the bottom side by the initial peeling process, and after the contents are poured out, When the body is restored to its original shape, a delamination container that can reliably peel the inner layer body from the outer layer body can be provided.

It is a side view of the lamination peeling container which is one Embodiment of this invention. It is a top view of the lamination peeling container shown in FIG. (A) is sectional drawing which follows the AA line in FIG. 1, (b) is sectional drawing which follows the BB line in FIG. (A) is sectional drawing which follows the CC line in FIG. 1, (b) is sectional drawing which follows the DD line | wire in FIG. It is sectional drawing which shows the state of the inner layer body with respect to the outer layer body after initial peeling, Comprising: (a) is sectional drawing of the part corresponding to Fig.3 (a), (b) respond | corresponds to FIG.3 (b). It is sectional drawing of a part. It is a side view of the lamination peeling container which is other embodiment of this invention.

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

  In this specification, claims, and abstract, “up and down direction” means the up and down direction based on the posture shown in FIG. 1, that is, “upward” means the upper direction in FIG. And “downward” means the opposite direction.

  As shown in FIGS. 1 to 4, a delamination container 1 according to an embodiment of the present invention has an outer layer body 2 made of a synthetic resin that constitutes an outer shell of the delamination container 1. The outer layer body 2 has a bottle shape including a cylindrical mouth portion 11, a body portion 12 that is continuous with the mouth portion 11, and a bottom portion 13 that is continuous with the body portion 12. A substantially conical shoulder portion 12a which is continuous with the lower end and expands downward, and a trunk body portion 12b with a substantially constant outer diameter connected to the shoulder portion 12a. The trunk portion 12 has a predetermined rigidity and can be squeezed (pressed) to be recessed, and when the squeeze is released, the body portion 12 can be restored from the recessed state to the original shape.

  An inner layer body 3 is provided inside the outer layer body 2. The inner layer body 3 is formed in a bag shape thinner than the outer layer body 2 by a synthetic resin material, and is laminated on the inner surface of the outer layer body 2 so as to be peelable, and has a shape corresponding to the shape of the outer layer body 2. . Although not shown in detail, the opening of the inner layer body 3 is connected to the opening end of the mouth portion 11 of the outer layer body 2, and the inside of the inner layer body 3 is a housing space S that is connected to the opening. Liquid contents such as cosmetics such as lotion, toiletries such as shampoo and rinse or liquid soap, and food seasonings such as soy sauce can be accommodated in the inner layer 3, that is, the accommodation space S. . The inner layer body 3 is volume-reducible and deformable, and can be volume-reduced and deformed so as to peel from the inner surface of the outer layer body 2 and reduce the volume of the accommodating space S as the contents are poured out.

  Here, the inner layer body 3 is “releasably laminated” on the inner surface of the outer layer body 2 means that the inner layer body 3 laminated in a state of being bonded, pseudo-adhered or welded to the inner surface of the outer layer body 2, It includes not only that the outer layer body 2 can be peeled off, but also that the inner layer body 3 simply laminated in close contact with the inner surface of the outer layer body 2 is separated from the outer layer body 2.

  An elongated strip-shaped adhesive band extending from the mouth portion 11 to the bottom portion 13 is provided between the outer layer body 2 and the inner layer body 3, and the outer layer body 2 and the inner layer body 3 are bonded to each other at the adhesive band portion. It can also be configured. If the adhesive strip is provided on one side in the circumferential direction of the delamination container 1, it may be one or two or more. For example, two adhesive bands are provided with a parting line in between. be able to.

  The delamination container 1 is formed by coextruding a synthetic resin material for an outer layer body and a synthetic resin material for an inner layer body having low compatibility to form a laminated parison, and the laminated parison is blow-molded using a mold. Thus, the inner layer body 3 is formed on the inner surface of the outer layer body 2 so that the inner layer body 3 can be peeled off. The delamination container 1 can also be formed by biaxial stretching blow molding a preform having a laminated structure formed in advance by injection molding or the like.

  For example, a pouring tool (not shown) such as a pouring cap having a structure in which a check pipe is provided in a pouring cylinder for pouring contents is attached to the mouth portion 11 by a stopper, and the pouring tool is inserted through the pouring tool. The contents are poured out. When such an exfoliation cap of the above-mentioned composition is attached to mouth part 11, such a lamination exfoliation container 1 pours out contents from mouth part 11 by squeezing trunk 12 of outer layer body 2. Can do. When the outer layer body 2 is restored to its original shape after the contents are poured out, the outside air flows between the outer layer body 2 and the inner layer body 3 from the outside air introduction hole 14 described later. The outer layer body 2 can be restored to the original shape while the volume of the space S is reduced and deformed. Therefore, after the contents are poured out, the outside air is prevented from flowing into the accommodation space S of the inner layer body 3 from the mouth portion 11, thereby suppressing the contents accommodated in the accommodation space S from coming into contact with air. , Its deterioration and alteration can be prevented.

  It should be noted that a pump as a pouring tool at the mouth portion 11 or other pouring caps such as a pouring cap configured to pour out the contents housed in the housing space S of the inner layer body 3 by its own weight by tilting the outer layer body 2. It is also possible to wear a dispenser of construction.

  The mouth portion 11 is provided with a locking projection 11a for attaching the pouring tool to the mouth portion 11 by a stopper. The locking protrusion 11a can lock the pouring tool to the mouth portion 11 by undercut engagement with a locking groove provided on the inner peripheral surface of the pouring tool mounting cylinder. The locking projections 11a are formed in a pair of arcs having intermittent portions at two locations facing each other across the central axis O of the delamination container 1 or the mouth portion 11 in plan view.

  A pair of outside air introduction holes 14 are provided in the mouth portion 11 of the outer layer body 2. Each of the outside air introduction holes 14 is formed in a circular shape, and is disposed in an intermittent portion of the locking projection 11 a and is disposed symmetrically with respect to the central axis O. These outside air introduction holes 14 pass through the outer layer body 2 and communicate with each other between the outer layer body 2 and the inner layer body 3, and when the inner layer body 3 peels from the outer layer body 2, the outer layer body 2 and the inner layer body The outside air can be introduced into the gap with 3. In addition, the part by which the external air introduction hole 14 of the opening | mouth part 11 is provided, ie, the intermittent part of the latching protrusion 11a, is chamfered flat.

  A neck ring 15 is provided at the lower end of the mouth portion 11. The neck ring 15 protrudes radially outward from the outer peripheral surface of the mouth portion 11 and extends in the circumferential direction. Further, the neck ring 15 has a reference line L at a position along a reference line L (shown as the same line as the central axis O in FIG. 1) that passes through the axis of the outside air introduction hole 14 and extends in the vertical direction. A notch portion 15a is provided along. In the present embodiment, notches 15 a are provided at two locations corresponding to the respective outside air introduction holes 14. These notches 15 a are located directly below the outside air introduction hole 14. By providing the neck ring 15 in the mouth portion 11, when a pouring tool such as a pouring cap is attached to the mouth portion 11 with a stopper, the neck ring 15 can be locked with a stopper for stoppering. it can.

  A pair of first vertical ribs 20 are provided in a portion of the body portion 12 on the lower side of the one outside air introduction hole 14. Similarly, a pair of first vertical ribs 20 are provided on the lower side of the other outside air introduction hole 14 of the body 12. In other words, in the present embodiment, a pair of first vertical ribs 20 are provided on both sides of the center axis O of the body portion 12. These four first vertical ribs 20 are respectively provided on the shoulder portion 12a of the trunk portion 12, and are arranged symmetrically on both the left and right sides with the reference line L interposed therebetween. Further, the upper ends of the respective first vertical ribs 20 are arranged at an interval from the upper end of the body portion 12, that is, the neck ring 15.

  As can be seen from FIGS. 3A and 4A, these first vertical ribs 20 are each formed as a concave rib extending in the vertical direction and recessed toward the inside of the container. Moreover, in the part in which the 1st vertical rib 20 was provided, both the outer-layer body 2 and the inner-layer body 3 are dented in the shape of a concave rib. In addition, the length of these four 1st vertical ribs 20 is the same, and the vertical direction position is also mutually the same.

  Four second vertical ribs 21 are provided in a portion of the body portion 12 below the pair of first vertical ribs 20 provided on the lower side of the one outside air introduction hole 14. Similarly, four second vertical ribs 21 are provided in a portion of the body portion 12 below the pair of first vertical ribs 20 provided on the lower side of the other outside air introduction hole 14. . In other words, in the present embodiment, four second vertical ribs 21 are provided on both sides of the center axis O of the body portion 12. These four second vertical ribs 21 are also provided on the shoulder portion 12a of the trunk portion 12, and are arranged symmetrically on the left and right sides of the reference line L.

  Further, as can be seen from FIGS. 3B and 4B, the second vertical ribs 21 are formed in a concave rib shape extending in the vertical direction and recessed toward the inside of the container. ing. Moreover, in the part in which the 2nd vertical rib 21 was provided, both the outer layer body 2 and the inner layer body 3 are dented in the shape of a concave rib. The lengths of these eight second vertical ribs 21 are the same, and their vertical positions are also the same.

  The second vertical ribs 21 are provided with a space in the vertical direction with respect to the first vertical ribs 20. That is, a space is provided in the vertical direction between the lower end of the first vertical rib 20 and the upper end of the second vertical rib 21. As a result, as shown in FIG. 2, the outer peripheral surface of the shoulder portion 12 a of the body portion 12 extends between the lower end of the first vertical rib 20 and the upper end of the second vertical rib 21 over the entire circumference. In addition, an annular region A formed on a flat surface (conical surface) where the first vertical rib 20 and the second vertical rib 21 are not provided is provided.

  As shown in FIG. 1, each of the second vertical ribs 21 is provided so as to be shifted in the circumferential direction with respect to an extension line of the first vertical rib 20 provided above the second vertical rib 21. That is, each second vertical rib 21 is provided with a circumferential position shifted from the first vertical rib 20. In the case shown in the figure, the two second vertical ribs 21 on one side of the reference line L are arranged symmetrically across the extension line of the first vertical rib 20 above the same, and similarly, the reference line L The two second vertical ribs 21 on the other side are arranged symmetrically with an extension line of the first vertical rib 20 above the second vertical rib 21 interposed therebetween.

  In the laminated peeling container 1 having such a configuration, since the first vertical rib 20 and the second vertical rib 21 are provided in the body portion 12, after performing the initial peeling treatment of the inner layer body 3, the inner layer body 3. 5 in close contact with the inner surface of the outer layer body 2, as shown in FIG. 5, the outer layer body 2 and the inner layer body are formed in the portion of the body 12 where the first vertical ribs 20 and the second vertical ribs 21 are provided. A gap G can be generated between the outer layer body 2 and the inner layer body 3 without bringing the three into close contact with each other. That is, the laminated peeling container 1 subjected to the initial peeling treatment has a gap G between the outer layer body 2 and the inner layer body 3 in the portion where the first vertical rib 20 and the second vertical rib 21 of the trunk portion 12 are provided. It becomes the thing of the structure provided.

  For example, after the delamination container 1 is formed by blow molding, air inside the inner layer body 3 is sucked out from the mouth portion 11, or air is blown into the space between the outer layer body 2 and the inner layer body 3 from the outside air introduction hole 14. Then, the inner layer body 3 is once peeled off from the outer layer body 2, and then air is supplied into the inner layer body 3 from the mouth 11 to return the inner layer body 3 to the original state laminated on the outer layer body 2. The initial peeling process of the inner layer body 3 can be performed. In this initial peeling process, the inner layer body 3 once peeled from the outer layer body 2 is again laminated on the inner surface of the outer layer body 2. At this time, the first longitudinal ribs 20 and the second second ribs of the outer layer body 2 are stacked. A positional shift occurs between the portion where the vertical rib 21 is provided and the portion where the first vertical rib 20 and the second vertical rib 21 of the inner layer body 3 are provided. It becomes difficult to adhere to the inner surface. As a result, a gap G as shown in FIG. 5 is generated between the outer layer body 2 and the inner layer body 3. In addition, the first vertical rib 20 and the second vertical rib 21 of the trunk portion 12 are provided by the first vertical rib 20 and the second vertical rib 21 being spaced apart from each other in the vertical direction. Since the shape or configuration of the portion becomes complicated, it becomes more difficult for the inner layer body 3 to be in close contact with the outer layer body 2 in the portion. Thereby, the clearance gap G can be reliably produced in the part in which the 1st vertical rib 20 and the 2nd vertical rib 21 of the trunk | drum 12 were provided.

  Furthermore, by providing the second vertical rib 21 in a circumferential direction with respect to the extended line of the first vertical rib 20, in the portion where the first vertical rib 20 and the second vertical rib 21 are provided. The shape or configuration of the body 12 can be further complicated. Thereby, in the initial peeling process, it is more difficult for the inner layer body 3 to be in close contact with the outer layer body 2, and the gap between the first vertical rib 20 and the second vertical rib 21 of the trunk portion 12 is more reliably secured. G can be generated.

  In this way, by providing the first vertical rib 20 and the second vertical rib 21 in the body portion 12, the first vertical rib 20 and the second vertical rib 21 of the body portion 12 after the initial peeling process of the inner layer body 3. Since the gap G can be generated in the portion where the and are provided, the inner layer body 3 can be easily separated from the outer layer body 2 in the portion. Therefore, after the outer layer body 2 is squeezed and the contents are poured out, the inner layer body 3 can be reliably peeled from the outer layer body 2 when the outer layer body 2 is restored to its original shape. Further, an outside air introduction path from the outside air introduction hole 14 toward the bottom portion 13 is formed by the gap G generated in the portion of the body portion 12 where the first longitudinal rib 20 and the second longitudinal rib 21 are provided. become. Therefore, after the contents are poured out, when the outer layer body 2 is restored to the original shape, the outside air sucked in between the outer layer body 2 and the inner layer body 3 from the outer air introduction hole 14 is removed from the body portion 12. The first vertical rib 20 and the second vertical rib 21 can be reliably introduced to the bottom 13 side through the outside air introduction path formed by the gap G generated in the portion where the first vertical rib 20 and the second vertical rib 21 are provided. Therefore, when the outer layer body 2 is restored to its original shape after the contents are poured out, the inner layer body 3 is surely peeled from the outer layer body 2 from the bottom 13 side toward the body 12 side. Thus, it is possible to reliably prevent outside air from being introduced into the accommodation space S of the inner layer body 3. Further, the inner layer body 3 is easily peeled from the outer layer body 2, so that the squeezed outer layer body 2 can surely return to its original shape, and deformation of the outer layer body 2 can be prevented.

  Furthermore, even in the configuration in which the neck ring 15 is provided at the lower end of the mouth portion 11 as in the present embodiment, the notch portion 15a is provided in the portion immediately below the outside air introduction hole 14 of the neck ring 15, By making it easy to peel the inner layer body 3 from the outer layer body 2 at the portion where the notch portion 15a is provided, the outside air can be reliably introduced from the outside air introduction hole 14 into the gap G of the first vertical rib 20. In the present embodiment, since the pair of first vertical ribs 20 are provided on both sides of the notch portion 15a on the lower side, the first vertical ribs 20 and the second vertical ribs 21 from the notch portion 15a. Is created between the outer layer body 2 and the inner layer body 3, so that the outer layer body 2 is sucked between the outer layer body 2 and the inner layer body 3 when the outer layer body 2 is restored to its original shape. The outside air thus produced can surely flow into the bottom portion 13 through the outside air introduction path formed by the gap G between the first vertical rib 20 and the second vertical rib 21.

  FIG. 6 is a side view of a delamination container that is another embodiment of the present invention. In FIG. 6, members corresponding to those described above are denoted by the same reference numerals.

  As shown in FIG. 6, the delamination container 1 may have a configuration in which third vertical ribs 22 are further provided in a portion below the second vertical ribs 21 of the body portion 12. In FIG. 6, the same number (eight) of third vertical ribs 22 as the second vertical ribs 21 are provided on the lower side of the second vertical ribs 21 with a space in the vertical direction with respect to the second vertical ribs 21. Indicates the case.

  Similar to the first vertical ribs 20 and the second vertical ribs 21, these third vertical ribs 22 are each formed as a concave rib shape extending in the vertical direction and recessed toward the inside of the container. In the portion where the rib 22 is provided, both the outer layer body 2 and the inner layer body 3 are recessed in a concave rib shape. The lengths of these eight second vertical ribs 21 are the same, and the vertical positions are also the same. Each of the third vertical ribs 22 is disposed on an extension line of the second vertical rib 21 provided above the third vertical rib 22.

  In the delamination container 1 including the third vertical ribs 22, the outer peripheral surface of the shoulder portion 12 a of the trunk portion 12 passes between the lower end of the first vertical ribs 20 and the upper end of the second vertical ribs 21 on the entire periphery. In addition to the annular region A1 formed on a flat surface (conical surface) where the first vertical rib 20 and the second vertical rib 21 are not provided, the lower end of the second vertical rib 21 and the third vertical rib 21 are provided. An annular region A2 is provided which extends between the upper ends of the ribs 22 over the entire circumference and is configured as a flat surface (conical surface) where the second vertical ribs 21 and the third vertical ribs 22 are not provided. Will be.

  Although not shown in detail, in the laminated peeling container 1 in which the body portion 12 is provided with the third vertical ribs 22 in addition to the first vertical ribs 20 and the second vertical ribs 21, an initial peeling process of the inner layer body 3 is performed. Thus, in the portion where the first vertical rib 20, the second vertical rib 21 and the third vertical rib 22 of the trunk portion 12 are provided while most of the inner layer body 3 is closely attached to the inner surface of the outer layer body 2, the outer layer body 2. A gap G can be generated between the inner layer body 3 and the inner layer body 3. That is, the laminated peeling container 1 including the first vertical rib 20, the second vertical rib 21, and the third vertical rib 22 in the body portion 12 undergoes an initial peeling process, whereby the first vertical rib 20 and the second vertical rib 21. And it becomes a thing of the structure by which the clearance gap G was provided between the outer layer body 2 and the inner layer body 3 in the part in which the 3rd vertical rib 22 was provided.

  As described above, by providing the third vertical rib 22 in addition to the first vertical rib 20 and the second vertical rib 21, the first vertical rib 20, the second vertical rib 21, and the third vertical rib 22 are provided. The shape or configuration of the body portion 12 in the provided portion can be further complicated. Therefore, in the initial peeling process, it is more difficult for the inner layer body 3 to be in close contact with the outer layer body 2, and the first vertical rib 20, the second vertical rib 21, and the third vertical rib 22 of the body 12 are provided in the portion provided. Further, the gap G can be generated with certainty. Thereby, after the content is poured out, when the outer layer body 2 is restored to the original shape, the outside air sucked in between the outer layer body 2 and the inner layer body 3 from the outside air introduction hole 14 is converted into the first vertical rib 20. When the outer layer body 2 is restored to its original shape by surely flowing to the bottom 13 side through the outside air introduction path formed by the gap G between the second vertical rib 21 and the third vertical rib 33, the inner layer body 3 can be reliably peeled from the outer layer body 2 from the bottom 13 side toward the body 12 side.

  The first vertical rib 20, the second vertical rib 21, and the third vertical rib 22 are each within a range of 90 degrees when viewed from the axial direction of the outside air introduction hole 14 and directed downward about the axis of the outside air introduction hole 14. Is preferably provided. By providing the first vertical rib 20, the second vertical rib 21 and the third vertical rib 22 within the range, the outside air introduction hole 14 and the first vertical rib 20, the second vertical rib 21 and the third vertical rib 22 are formed. As the air passage is more reliably formed, the outside air sucked in between the outer layer body 2 and the inner layer body 3 from the outside air introduction hole 14 when the outer layer body 2 is restored to its original shape It is possible to flow more reliably to the side of 13.

  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, the number of the first vertical ribs 20, the second vertical ribs 21, and the third vertical ribs 22 provided in the body portion 12 is not limited to the above-described number, and at least one first vertical rib 20 and two second vertical ribs 21 are provided. If it is provided, it can be set arbitrarily.

  Further, the first vertical rib 20, the second vertical rib 21, and the third vertical rib 22 are not limited to be provided within the range of the shoulder portion 12a of the trunk portion 12, but may be provided within a range reaching the trunk main body portion 12b. Good.

  Furthermore, the first vertical rib 20, the second vertical rib 21, and the third vertical rib 22 are not limited to the concave rib shape that is recessed toward the inside of the container, but are formed in a convex rib shape that protrudes toward the outside of the container. May be. In this case, the first vertical rib 20 and the third vertical rib 22 are formed in a concave rib shape while only the second vertical rib 21 is formed in a convex rib shape, or the first vertical rib 20, the second vertical rib 21 and the third vertical rib. As the ribs 22, the first vertical ribs 20, the second vertical ribs 21, and the third vertical ribs 22 are each formed in a concave rib shape, such as a configuration in which concave rib shapes and convex rib shapes are alternately arranged. It can also be set as the structure which mixed and the thing of a convex rib shape. Thereby, the shape thru | or structure of the trunk | drum 12 in the part in which the 1st vertical rib 20, the 2nd vertical rib 21, and the 3rd vertical rib 22 were provided can be made still more complicated. Thereby, in the initial peeling process, it is further difficult for the inner layer body 3 to be in close contact with the outer layer body 2, and the first vertical rib 20, the second vertical rib 21 and the third vertical rib 22 of the trunk portion 12 are provided. In addition, the gap G can be generated more reliably.

  Further, as the delamination container 1, the mouth part 11, the body part 12, and the bottom part 13 exemplarily have a circular shape in plan view, but the delamination container 1 has the mouth part 11, the body part 12, and the bottom part 13. May have an elliptical shape or other shapes in plan view.

  Furthermore, it is good also as a structure which replaces the latching protrusion 11a in the opening part 11, and provides a screw part to the opening part 11 by screw | thread coupling | bonding.

DESCRIPTION OF SYMBOLS 1 Lamination peeling container 2 Outer layer body 3 Inner layer body 11 Mouth part 11a Locking protrusion 12 Trunk part 12a Shoulder part 12b Trunk body part 13 Bottom part 14 Outside air introduction hole 15 Neck ring 15a Notch part 20 1st vertical rib 21 2nd vertical rib 22 3rd vertical rib S accommodation space O center axis L reference line A area G gap A1 area A2 area

Claims (10)

A bottle-shaped outer layer body provided with a cylindrical mouth part, a body part connected to the mouth part and a bottom part connected to the body part, and a shape corresponding to the outer layer body, which is detachably laminated on the inner surface of the outer layer body A delamination container having a volume-reducing and deformable inner layer body, and having an outer air introduction hole extending through the outer layer body and connected between the outer layer body and the inner layer body. ,
At least one first vertical rib provided in a portion of the trunk portion on the lower side of the outside air introduction hole;
It has at least one 2nd vertical rib provided at intervals in the up-and-down direction to the 1st vertical rib in the portion below the 1st vertical rib of the trunk part, It is characterized by the above-mentioned. Laminated peeling container.   The delamination container according to claim 1, wherein the second vertical rib is provided so as to be shifted in the circumferential direction with respect to an extension line of the first vertical rib. A neck ring is provided at the lower end of the mouth,
3. The delamination container according to claim 1, wherein the neck ring is provided with a notch along a reference line that passes through the axis of the outside air introduction hole and extends in the vertical direction.   The delamination container according to claim 3, wherein one of the first vertical ribs and two of the second vertical ribs are provided on each of the left and right sides of the trunk portion across the reference line.   The trunk portion includes a shoulder portion that is continuous with a lower end of the mouth portion and expands downward, and a trunk main body portion with a substantially constant outer diameter that is continuous with the shoulder portion, the first vertical rib and the first The laminated peeling container according to any one of claims 1 to 4, wherein two vertical ribs are provided on the shoulder portion.   The first vertical rib and the second vertical rib are provided within a range of 90 degrees downward from the axial center of the outside air introduction hole as viewed from the axial direction of the outside air introduction hole. Item 6. The delamination container according to any one of Items 1 to 5.   The at least 1 3rd vertical rib is provided in the part below the said 2nd vertical rib of the said trunk | drum at intervals at the up-down direction with respect to this 2nd vertical rib. The laminate peeling container according to any one of the above.   The delamination container according to claim 7, wherein the same number of the third vertical ribs as the second vertical ribs are provided on the extension lines of the corresponding second vertical ribs.   The said 3rd vertical rib is provided in the range of 90 degree | times turned downward centering on the axial center of this external air introduction hole seeing from the axial direction of the said external air introduction hole. Laminated peeling container.   The delamination container according to any one of claims 7 to 9, wherein a gap is provided between the outer layer body and the inner layer body in a portion where the third vertical rib is provided.

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