WO2016080313A1 - Récipient à séparation à stratification - Google Patents

Récipient à séparation à stratification Download PDF

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Publication number
WO2016080313A1
WO2016080313A1 PCT/JP2015/081997 JP2015081997W WO2016080313A1 WO 2016080313 A1 WO2016080313 A1 WO 2016080313A1 JP 2015081997 W JP2015081997 W JP 2015081997W WO 2016080313 A1 WO2016080313 A1 WO 2016080313A1
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WO
WIPO (PCT)
Prior art keywords
container
outer shell
intermediate space
valve member
inner bag
Prior art date
Application number
PCT/JP2015/081997
Other languages
English (en)
Japanese (ja)
Inventor
真輔 樽野
Original Assignee
キョーラク株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2015090244A external-priority patent/JP6761159B2/ja
Application filed by キョーラク株式会社 filed Critical キョーラク株式会社
Priority to US15/527,882 priority Critical patent/US10464706B2/en
Priority to EP15861777.9A priority patent/EP3222541B1/fr
Priority to CN201580058451.3A priority patent/CN107074395B/zh
Priority to KR1020197026827A priority patent/KR102173533B1/ko
Priority to KR1020177014062A priority patent/KR102023136B1/ko
Publication of WO2016080313A1 publication Critical patent/WO2016080313A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents

Definitions

  • the present invention relates to a delamination container.
  • a container body having an outer shell and an inner bag and the inner bag peels off from the outer shell and shrinks as the contents are reduced, an intermediate space between the outer shell and the inner bag, and an outer space of the container body
  • a laminated peeling container including a check valve that adjusts the flow of air between the two for example, Patent Documents 1 and 2.
  • the valve is incorporated in the cap attached to the opening
  • the valve is provided inside the trunk
  • Patent Document 1 In the configuration of Patent Document 1, the structure of the cap becomes complicated, leading to an increase in production cost. In the configuration of Patent Document 2, a troublesome process of adhering a check valve to the inside of the body portion of the outer shell is required, leading to an increase in production cost.
  • the present invention has been made in view of such circumstances, and provides a delamination container excellent in productivity.
  • a container body having an outer shell and an inner bag, and the inner bag peels off from the outer shell and shrinks as the contents are reduced, and an intermediate between the outer shell and the inner bag.
  • a delamination container including a valve member that adjusts the flow of air between a space and an external space of the container body, wherein the container body includes a storage unit that stores contents, and the content from the storage unit.
  • a port for discharging an object the outer shell includes an outside air introduction hole that communicates the intermediate space and the outer space in the accommodating portion, and the valve member communicates the outer space and the intermediate space.
  • the shaft portion is tapered toward the intermediate space side, and the outer peripheral surface of the shaft portion is in close contact with the edge of the outside air introduction hole, whereby the cylindrical body is
  • the cylinder is attached to a container body, and the cylindrical body has a stopper portion for locking the moving body when the moving body moves from the intermediate space side toward the external space side on a surface surrounding the cavity portion.
  • the stopper part is provided with a delamination container configured such that air flow through the cavity is blocked when the movable body abuts on the stopper part.
  • the present inventor conducted intensive studies and found that the valve member can be attached to the outer shell by pushing the valve member into the outside air introduction hole of the outer shell from the outside of the outer shell. According to such a structure, since it is not necessary to provide a check valve in the cap and the valve member can be easily attached, the structure is simple and the productivity is high.
  • valve member of the present invention is composed of a cylinder and a moving body, both of which can be manufactured with high dimensional accuracy by injection molding. For this reason, since the moving body can be smoothly moved in the cylinder, the dropping can be reliably performed even in a small amount. For this reason, the lamination peeling container of this invention is used suitably for the use which discharges a small amount of liquids, such as an eye drop container.
  • the tip of the cylindrical body is a flat surface.
  • an opening communicating with the cavity is provided in the flat surface, and the opening has a slit that spreads radially.
  • the cylindrical body has an enlarged diameter portion that is provided on the intermediate space side of the shaft portion and prevents the cylindrical body from being pulled out from the outside of the container main body.
  • the expanded diameter portion has a tapered shape toward the intermediate space side.
  • a covering member that covers the periphery of the valve member and the outside air introduction hole and prevents introduction of outside air into the intermediate space in a state where the valve member is mounted is provided.
  • the covering member is a seal member that adheres around the valve member and the outside air introduction hole.
  • the said covering member is a cap attached to the opening part of the said container main body.
  • the valve member is configured such that the movable body can be inserted into the cavity from an opening on the intermediate space side of the cavity.
  • a container main body having an outer shell and an inner bag, and the inner bag is peeled from the outer shell and shrinks as the contents are reduced, and the outer shell and the inner bag.
  • a delamination container comprising a valve member that adjusts the flow of air between an intermediate space between the outer space and the outer space of the container body, wherein the container body includes a housing portion that houses contents, and the housing A mouth portion for discharging the contents from a portion, the outer shell includes an outside air introduction hole communicating with the intermediate space and the outer space in the housing portion, and the valve member is mounted on the outside air introduction hole
  • a delamination container that is provided with a covering member that covers the periphery of the valve member and the outside air introduction hole to prevent introduction of outside air into the intermediate space in a state where the valve member is mounted.
  • FIG. 3 is a sectional view taken along line AA in FIG. 1 and 2 show a state before the bottom seal protrusion 27 is bent, and FIG. 3 shows a state after the bottom seal protrusion 27 is bent.
  • FIG. 4 is an enlarged view of a region including a bottom surface 29 in FIG. 3, (a) shows a state before the bottom seal protrusion 27 is bent, and (b) shows a state after the bottom seal protrusion 27 is bent.
  • Show. 3 is a cross-sectional view showing a layer configuration of an outer layer 11 and an inner layer 13.
  • FIG. 10 shows a manufacturing process subsequent to FIG. 9 for the delamination container 1 of FIG.
  • FIG. 10 shows the configuration of a drill 30 used to form the outside air introduction hole 15.
  • FIG. 10 (a) is a front view
  • FIG. 10 (b) is a left side view
  • FIG. 10 (c) is a cross-sectional view along AA
  • (e) is an enlarged view of region C.
  • FIG. 10 shows another configuration of the drill 30 used for forming the outside air introduction hole 15, (a) is a front view, and (b) is a left side view. The process following FIG. 10 of the lamination peeling container 1 of FIG. 1 is shown.
  • FIGS. 10 shows the configuration of a drill 30 used to form the outside air introduction hole 15.
  • FIGS. 13 (b) to (c) are cross-sectional views showing the details of the inner bag separation step shown in FIGS. 13 (b) to (c).
  • FIGS. 13 (a) to (b) show the case where the air blowing preliminary peeling step is performed, and FIGS. ) Shows the case where the air blowing preliminary peeling step was not performed.
  • FIGS. 13D to 13E are cross-sectional views showing details of the valve member mounting step shown in FIGS. 13D to 13E (the valve member 4 is a front view), and FIGS. 13A to 13B show the case where the inner bag separating step is performed.
  • (C) to (d) show the case where the inner bag separating step was not performed.
  • the usage method of the lamination peeling container 1 of FIG. 1 is shown.
  • FIG. 1 It is sectional drawing which shows the example which used the sealing member 8 as a coating
  • the valve member 4 of 2nd Embodiment of this invention is shown, (a)-(e) is a figure corresponding to Fig.8 (a)-(e), (f) is the cylinder 5 of the valve member 4 of FIG. It is an enlarged view which shows the stopper part 5h.
  • the valve member 4 of 3rd Embodiment of this invention is shown, (a)-(g) is a figure corresponding to Fig.8 (a)-(g), (h) is the cylinder 5 of the valve member 4.
  • FIG. 20 Sectional drawing which shows the metal mold
  • the valve member 4 of the modification 1 of 3rd Embodiment is shown, (a)-(c) is a figure corresponding to FIG.20 (c), (g), (h). It is the figure which shows the valve member 4 of the modification 2 of 3rd Embodiment, and respond
  • a delamination container 1 As shown in FIGS. 1 and 2, a delamination container 1 according to a first embodiment of the present invention includes a container body 3 and a valve member 4.
  • the container body 3 includes a storage portion 7 that stores the contents, and a mouth portion 9 that discharges the contents from the storage portion 7.
  • the bag container body 3 includes an outer layer 11 and an inner layer 13 in the housing portion 7 and the mouth portion 9, an outer shell 12 is constituted by the outer layer 11, and an inner bag 14 is constituted by the inner layer 13.
  • an outer shell 12 is constituted by the outer layer 11
  • an inner bag 14 is constituted by the inner layer 13.
  • the mouth portion 9 is provided with a male screw portion 9d.
  • a cap or a pump having a female screw is attached to the male screw portion 9d.
  • FIG. 4 shows a part of the cap 23 having the inner ring 25.
  • the outer diameter of the inner ring 25 is substantially the same as the inner diameter of the mouth portion 9, and the outer surface of the inner ring 25 abuts against the abutting surface 9a of the mouth portion 9, thereby preventing leakage of the contents.
  • the enlarged diameter portion 9b is provided at the tip of the mouth portion 9, and the inner diameter of the enlarged diameter portion 9b is larger than the inner diameter of the contact portion 9e. The outer surface is not in contact with the enlarged diameter portion 9b.
  • the mouth portion 9 includes an inner layer support portion 9c that suppresses the slippage of the inner layer 13 at a position closer to the housing portion 7 than the contact portion 9e.
  • the inner layer support portion 9 c is formed by providing a constriction at the mouth portion 9. Even when the enlarged diameter portion 9 b is provided in the mouth portion 9, the inner layer 13 may be separated from the outer layer 11 due to friction between the inner ring 25 and the inner layer 13. In the present embodiment, even in such a case, the inner layer support portion 9c suppresses the displacement of the inner layer 13, so that the inner bag 14 can be prevented from falling into the outer shell 12.
  • the accommodating portion 7 includes a trunk portion 19 having a substantially constant cross-sectional shape in the longitudinal direction of the accommodating portion, and a shoulder portion 17 that connects between the trunk portion 19 and the mouth portion 9. Is provided.
  • the shoulder 17 is provided with a bent portion 22.
  • the bending portion 22 is a portion where the bending angle ⁇ shown in FIG. 3 is 140 degrees or less and the radius of curvature on the inner surface side of the container is 4 mm or less. When there is no bent portion 22, the separation between the inner layer 13 and the outer layer 11 spreads from the body portion 19 to the mouth portion 9, and the inner layer 13 and the outer layer 11 may be peeled also at the mouth portion 9.
  • the inner layer 13 and the outer layer 11 are peeled at the mouth portion 9, the inner bag 14 may fall into the outer shell 12, and therefore, the peeling of the inner layer 13 and the outer layer 11 at the mouth portion 9 is not desirable.
  • the bent portion 22 since the bent portion 22 is provided, when the separation between the inner layer 13 and the outer layer 11 spreads from the body portion 19 to the bent portion 22, the inner layer 13 is bent at the bent portion 22 as shown in FIG. Thus, the force for peeling the inner layer 13 from the outer layer 11 is not transmitted to the upper part of the bent portion 22, and as a result, the peeling between the inner layer 13 and the outer layer 11 in the upper portion of the bent portion 22 is suppressed.
  • the 3 to 5, the bent portion 22 is provided on the shoulder portion 17, but the bent portion 22 may be provided at the boundary between the shoulder portion 17 and the trunk portion 19.
  • the lower limit of the bending angle ⁇ is not particularly defined, but is preferably 90 ° or more in consideration of ease of manufacture.
  • the lower limit of the radius of curvature is not particularly specified, but is preferably 0.2 mm or more in consideration of ease of production.
  • the bending angle ⁇ is preferably 120 degrees or less, and the curvature radius is preferably 2 mm or less.
  • the bending angle ⁇ is, for example, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140 degrees, and is within a range between any two of the numerical values exemplified here. It may be.
  • the curvature radius is, for example, 0.2, 0.4, 0.6, 0.8, 1, 1.2, 1.4, 1.6, 1.8, 2 mm, where It may be within a range between any two of the exemplified numerical values.
  • the bent portion 22 has a distance L2 from the container central axis C to the inner surface of the container at the bent portion 22 is 1.3, which is a distance L1 from the container central axis C to the inner surface of the container at the mouth 9. It is provided at a position that is double or more.
  • the delamination container 1 of the present embodiment is formed by blow molding, and as L2 / L1 increases, the blow ratio at the bent portion 22 increases and the wall thickness decreases, so that L2 / L1 ⁇ 1. 3, the thickness of the inner layer 13 at the bent portion 22 is sufficiently reduced, the inner layer 13 is more easily bent at the bent portion 22, and the inner layer 13 and the outer layer 11 are more reliably separated at the mouth portion 9. Is prevented.
  • L2 / L1 is, for example, 1.3 to 3, and preferably 1.4 to 2. Specifically, L2 / L1 is, for example, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.5, 3, where It may be within a range between any two of the numerical values exemplified in.
  • the thickness at the mouth portion 9 is 0.45 to 0.50 mm
  • the thickness at the bent portion 22 is 0.25 to 0.30 mm
  • the thickness at the trunk portion 19 is 0. .15 to 0.20 mm.
  • the accommodating portion 7 has a valve member 4 that adjusts the flow of air between the intermediate space 21 between the outer shell 12 and the inner bag 14 and the outer space S of the container body 3.
  • the outer shell 12 is provided with an outside air introduction hole 15 that communicates the intermediate space 21 and the outer space S in the housing portion 7.
  • the outside air introduction hole 15 is a through hole provided only in the outer shell 12 and does not reach the inner bag 14.
  • the valve member 4 is accommodated in a cylindrical body 5 having a hollow portion 5g provided so as to communicate the outer space S and the intermediate space 21, and movably accommodated in the hollow portion 5g.
  • the moving body 6 is provided.
  • the cylindrical body 5 and the movable body 6 are formed by injection molding or the like, and the movable body 6 is disposed in the hollow portion 5g by pushing the movable body 6 into the hollow portion 5g so as to get over a stopper portion 5h described later. be able to.
  • the hollow portion 5g has a substantially cylindrical shape
  • the moving body 6 has a substantially spherical shape, but may have another shape as long as the same function as that of the present embodiment can be realized.
  • the diameter of the hollow portion 5g in the cross section (the cross section in FIG. 8D) is slightly larger than the diameter in the corresponding cross section of the moving body 6, and the moving body 6 is shown by the arrow in FIG. The shape is freely movable in the D direction.
  • the ratio value defined by the diameter of the cross section of the cavity 5g / the diameter of the corresponding cross section of the moving body 6 is preferably 1.01 to 1.2, and more preferably 1.05 to 1.15. If this value is too small, smooth movement of the moving body 6 is hindered. If this value is too large, the gap between the surface 5j surrounding the cavity 5g and the moving body 6 becomes too large, and the container body 3 is compressed. This is because the force applied to the moving body 6 tends to be insufficient.
  • the cylindrical body 5 includes a shaft portion 5 a disposed in the outside air introduction hole 15, a locking portion 5 b provided on the outer space S side of the shaft portion 5 a and preventing the cylindrical body 5 from entering the intermediate space 21, It has an enlarged diameter portion 5c that is provided on the intermediate space 21 side of the portion 5a and prevents the cylindrical body 5 from being pulled out from the outside of the container body 3.
  • the shaft portion 5a is tapered toward the intermediate space 21 side. That is, the outer peripheral surface of the shaft portion 5a is a tapered surface.
  • the cylindrical body 5 is attached to the container body 3 when the outer peripheral surface of the shaft portion 5 a is in close contact with the edge of the outside air introduction hole 15.
  • the gap between the edge of the outside air introduction hole 15 and the cylindrical body 5 can be reduced.
  • the air in the intermediate space 21 becomes free from the outside air introduction hole 15.
  • Outflow from the gap between the edge and the cylinder 5 can be suppressed.
  • the cylindrical body 5 is attached to the container main body 3 when the outer peripheral surface of the shaft portion 5a is in close contact with the edge of the outside air introduction hole 15, the expanded diameter portion 5c is not necessarily essential.
  • a stopper portion 5h for locking the moving body 6 when the moving body 6 moves from the intermediate space 21 side toward the external space S side.
  • the stopper portion 5h is configured by an annular protrusion, and when the moving body 6 comes into contact with the stopper portion 5h, the air flow through the hollow portion 5g is blocked.
  • the tip of the cylinder 5 is a flat surface 5d, and the flat surface 5d is provided with an opening 5e communicating with the cavity 5g.
  • the opening 5e has a substantially circular central opening 5e1 provided at the center of the flat surface 5d, and a plurality of slits 5e2 radiating from the central opening 5e1. According to such a configuration, the flow of air is not hindered even when the moving body 6 is in contact with the bottom of the cavity 5g.
  • the valve member 4 is inserted into the outside air introduction hole 15 from the expanded diameter portion 5 c side and pushed into a position where the locking portion 5 b contacts the outer surface of the outer shell 12.
  • the outer peripheral surface of the portion 5 a is held by the outer shell 12 in a state where the outer peripheral surface is in close contact with the edge of the outside air introduction hole 15.
  • the outer shell 12 is compressed in a state where air is contained in the intermediate space 21
  • the air in the intermediate space 21 enters the hollow portion 5g through the opening 5e, and pushes up the moving body 6 to contact the stopper portion 5h.
  • the moving body 6 comes into contact with the stopper portion 5h, the air flow through the hollow portion 5g is blocked.
  • the valve member 4 can be attached to the container body 3 by inserting the expanded diameter portion 5c into the intermediate space 21 while the expanded diameter portion 5c expands the outside air introduction hole 15. Therefore, it is preferable that the tip of the expanded diameter portion 5c has a tapered shape.
  • Such a valve member 4 is excellent in productivity because it can be mounted simply by pushing the expanded diameter portion 5c into the intermediate space 21 from the outside of the container body 3. Since the flat surface 5 d is provided at the tip of the cylinder 5, the inner bag 14 does not move even if the tip of the valve member 4 collides with the inner bag 14 when the valve member 4 is pushed into the intermediate space 21. It is hard to get hurt.
  • the accommodating portion 7 is covered with a shrink film after the valve member 4 is attached.
  • the valve member 4 is mounted in the valve member mounting recess 7 a provided in the housing portion 7 so that the valve member 4 does not interfere with the shrink film.
  • An air flow groove 7b extending from the valve member mounting recess 7a in the direction of the mouth 9 is provided so that the valve member mounting recess 7a is not sealed with the shrink film.
  • the covering member can be attached in a clean atmosphere after filling the contents into the inner bag 14.
  • the valve member 4 and the outside air introduction hole 15 are covered with the covering member, the outside air is not introduced into the intermediate space 21 and is not restored to the original shape after the outer shell 12 is compressed. Therefore, the user removes the covering member. It is assumed to be used in a state.
  • the sealing member 8 is provided.
  • the seal member 8 is a covering member.
  • FIG. 18 an example in which the periphery of the valve member 4 and the outside air introduction hole 15 is covered with a cap 23 can be given. In this case, the cap 23 becomes a covering member.
  • the technique of preventing intrusion of odorous gas into the intermediate space 21 using the covering member is a valve having a configuration other than the valve member 4 that opens and closes the outside air introduction hole 15 by the movement of the moving body 6 as in the present embodiment. It is also applicable to members.
  • the valve member having another configuration there is a configuration in which a gap between the edge of the outside air introduction hole 15 and the valve member 4 is opened and closed by moving the valve member.
  • the valve member mounting recess 7 a is provided in the shoulder portion 17 of the outer shell 12.
  • the shoulder portion 17 is an inclined surface, and a flat region FR is provided in the valve member mounting recess 7a. Since the flat region FR is provided so as to be substantially parallel to the inclined surface of the shoulder portion 17, the flat region FR is also an inclined surface. Since the outside air introduction hole 15 is provided in the flat region FR in the valve member mounting recess 7a, the outside air introduction hole 15 is provided on the inclined surface. For example, if the outside air introduction hole 15 is provided on the vertical surface of the body portion 19, the peeled inner bag 14 may come into contact with the valve member 4 to hinder the movement of the valve member 4.
  • the inclination angle of the inclined surface is not particularly limited, but is preferably 45 to 89 degrees, more preferably 55 to 85 degrees, and further preferably 60 to 80 degrees.
  • region FR in the valve member attachment recessed part 7a is provided over the width W of 3 mm or more (preferably 3.5 mm or 4 mm or more) circumference
  • FIG. . For example, when the outside air introduction hole 15 is ⁇ 4 mm and the outside air introduction hole 15 is formed at the center of the flat region FR, the valve member mounting recess 7 a is set to ⁇ 10 mm or more.
  • the upper limit of the width W of the flat region FR is not particularly defined, but as the width W of the flat region FR increases, the area of the valve member mounting recess 7a increases. As a result, the space between the outer shell 12 and the shrink film is increased.
  • the width W is preferably not too large, and the upper limit is, for example, 10 mm. Accordingly, the width W is, for example, 3 to 10 mm, specifically, for example, 3, 3.5, 4, 4.5, 5, 6, 7, 8, 9, 10 mm, and is exemplified here. It may be within a range between any two of the numerical values.
  • the radius of curvature of the inner surface of the outer shell 12 is preferably 200 mm or more, more preferably 250 mm or more, or 300 mm or more within a range of 2 mm around the outside air introduction hole 15. This is because, when the radius of curvature is such a value, the inner surface of the outer shell 12 is substantially flat, and the adhesion between the outer shell 12 and the valve member 4 is good.
  • the bottom surface 29 of the accommodating portion 7 is provided with a central concave region 29 a and a peripheral region 29 b provided around the central concave region 29 a, and the central concave region 29 a has a bottom protruding from the bottom surface 29.
  • a seal protrusion 27 is provided.
  • the bottom seal protrusion 27 is a seal portion of the laminated parison in blow molding using a cylindrical laminated parison including the outer layer 11 and the inner layer 13.
  • the bottom seal protrusion 27 includes a base portion 27d, a thin portion 27a, and a thick portion 27b having a thickness larger than that of the thin portion 27a in this order from the bottom surface 29 side.
  • the bottom seal protrusion 27 is in a state of standing substantially perpendicular to the surface P defined by the peripheral region 29b, as shown in FIG.
  • the inner layers 13 in the welded portion 27c are easily separated from each other, and the impact resistance is insufficient. Therefore, in this embodiment, the thin seal portion 27a is softened by blowing hot air to the bottom seal protrusion 27 after blow molding, and the bottom seal protrusion 27 is bent at the thin portion 27a as shown in FIG. 6B. Yes.
  • the impact resistance of the bottom seal protrusion 27 is improved by a simple process of simply bending the bottom seal protrusion 27. Further, as shown in FIG.
  • the bottom seal protrusion 27 does not protrude from the surface P defined by the peripheral region 29b in a bent state. Thus, when the delamination container 1 is erected, the bottom seal protrusion 27 protrudes from the surface P, and the delamination container 1 is prevented from falling over.
  • the base portion 27d is provided on the bottom surface 29 side of the thin portion 27a and is thicker than the thin portion 27a.
  • the base portion 27d may be omitted, but the thin portion 27a is provided on the base portion 27d.
  • the concave region of the bottom surface 29 is provided so as to cross the entire bottom surface 29 in the longitudinal direction of the bottom seal protrusion 27. That is, the central concave region 29a and the peripheral concave region 29c are connected. With such a configuration, the bottom seal protrusion 27 is easily bent.
  • the container body 3 includes an outer layer 11 and an inner layer 13.
  • the outer layer 11 is formed to be thicker than the inner layer 13 so that the restoring property is high.
  • the outer layer 11 is composed of, for example, low density polyethylene, linear low density polyethylene, high density polyethylene, polypropylene, ethylene-propylene copolymer, and a mixture thereof.
  • the outer layer 11 has a single layer or a plurality of layers, and preferably contains a lubricant in at least one of the innermost layer and the outermost layer.
  • the outer layer 11 has a single layer configuration, the single layer is the innermost layer and the outermost layer, and therefore, a lubricant may be contained in the layer.
  • the outer layer 11 has a two-layer structure, the inner layer layer is the innermost layer, and the outer layer layer is the outermost layer, so that at least one of them may contain a lubricant.
  • the outer layer 11 When the outer layer 11 is composed of three or more layers, the innermost layer is the innermost layer, and the outermost layer is the outermost layer. As shown in FIG. 7, the outer layer 11 preferably includes a repro layer 11c between the innermost layer 11b and the outermost layer 11a.
  • the repro layer refers to a layer that is used by recycling burrs that are produced when a container is molded.
  • lubricant those generally marketed as a lubricant can be used, and any of hydrocarbon-based, fatty acid-based, aliphatic amide-based, metal soap-based may be used, and two or more types may be used in combination. Good.
  • hydrocarbon lubricant include liquid paraffin, paraffin wax, and synthetic polyethylene wax.
  • fatty acid lubricants include stearic acid and stearyl alcohol.
  • Examples of the aliphatic amide-based lubricant include fatty acid amides of stearic acid amide, oleic acid amide, and erucic acid amide, and alkylene fatty acid amides of methylene bis stearic acid amide and ethylene bis stearic acid amide.
  • Examples of metal soap lubricants include metal stearates.
  • the innermost layer of the outer layer 11 is a layer that is in contact with the inner layer 13, and by incorporating a lubricant into the innermost layer of the outer layer 11, the peelability between the outer layer 11 and the inner layer 13 is improved, and the contents of the laminated peeling container Dischargeability can be improved.
  • the outermost layer of the outer layer 11 is a layer that comes into contact with the mold during blow molding, and the release property can be improved by containing a lubricant in the outermost layer of the outer layer 11.
  • One or both of the innermost layer and the outermost layer of the outer layer 11 can be formed of a random copolymer between propylene and another monomer. Thereby, the shape restoring property, transparency, and heat resistance of the outer shell 12 can be improved.
  • the random copolymer has a content of monomers other than propylene of less than 50 mol%, preferably 5 to 35 mol%. Specifically, this content is, for example, 5, 10, 15, 20, 25, 30 mol%, and may be within a range between any two of the numerical values exemplified here.
  • the monomer copolymerized with propylene may be any monomer that improves the impact resistance of the random copolymer when compared with a polypropylene homopolymer, and ethylene is particularly preferable.
  • the ethylene content is preferably 5 to 30 mol%, specifically, for example, 5, 10, 15, 20, 25, 30 mol%, and the numerical values exemplified here It may be within the range between any two.
  • the weight average molecular weight of the random copolymer is preferably 100,000 to 500,000, and more preferably 100,000 to 300,000. Specifically, the weight average molecular weight is, for example, 10, 15, 20, 25, 30, 35, 40, 45, 500,000, and is within a range between any two of the numerical values exemplified here. Also good.
  • the tensile elastic modulus of the random copolymer is preferably 400 to 1600 MPa, more preferably 1000 to 1600 MPa. This is because the shape restoring property is particularly good when the tensile elastic modulus is in such a range.
  • the tensile elastic modulus is, for example, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600 MPa, and between any two of the numerical values exemplified here It may be within the range.
  • a feeling of use of a container will worsen if a container is too hard, you may mix and use flexible materials, such as a linear low density polyethylene, for example in a random copolymer.
  • the material to be mixed with the random copolymer is preferably mixed so as to be less than 50% by weight with respect to the whole mixture so as not to significantly inhibit the effective characteristics of the random copolymer.
  • a material in which a random copolymer and linear low-density polyethylene are mixed at a weight ratio of 85:15 can be used.
  • the inner layer 13 is provided between the EVOH layer 13a provided on the outer surface side of the container, the inner surface layer 13b provided on the inner surface side of the container of the EVOH layer 13a, and between the EVOH layer 13a and the inner surface layer 13b.
  • the adhesive layer 13c is provided.
  • the EVOH layer 13a is a layer made of an ethylene-vinyl alcohol copolymer (EVOH) resin, and is obtained by hydrolysis of ethylene and vinyl acetate copolymer.
  • EVOH ethylene-vinyl alcohol copolymer
  • the ethylene content of the EVOH resin is, for example, 25 to 50 mol%, and is preferably 32 mol% or less from the viewpoint of oxygen barrier properties.
  • the EVOH layer 13a preferably contains an oxygen absorbent. By containing the oxygen absorbent in the EVOH layer 13a, the oxygen barrier property of the EVOH layer 13a can be further improved.
  • the melting point of the EVOH resin is preferably higher than the melting point of the resin constituting the outer layer 11.
  • the outside air introduction hole 15 is formed in the outer layer 11 by making the melting point of the EVOH resin higher than the melting point of the resin constituting the outer layer 11. In doing so, the holes can be prevented from reaching the inner layer 13.
  • the difference between (the melting point of EVOH) ⁇ (the melting point of the resin constituting the outer layer 11) is preferably large, preferably 15 ° C. or higher, and particularly preferably 30 ° C. or higher.
  • the difference in melting point is, for example, 5 to 50 ° C., specifically, for example, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50 ° C., and any of the numerical values exemplified here. Or within a range between the two.
  • the inner surface layer 13b is a layer that comes into contact with the contents of the delamination container 1, and is, for example, a polyolefin such as low density polyethylene, linear low density polyethylene, high density polyethylene, polypropylene, ethylene-propylene copolymer, and a mixture thereof. It is preferably made of low-density polyethylene or linear low-density polyethylene.
  • the tensile elastic modulus of the resin constituting the inner surface layer 13b is preferably 50 to 300 MPa, more preferably 70 to 200 MPa. This is because the inner surface layer 13b is particularly flexible when the tensile elastic modulus is in such a range.
  • the tensile modulus is specifically, for example, specifically, for example, 50, 100, 150, 200, 250, 300 MPa, and may be within a range between any two of the numerical values exemplified here. .
  • the adhesive layer 13c is a layer having a function of adhering the EVOH layer 13a and the inner surface layer 13b.
  • an acid-modified polyolefin having a carboxyl group introduced into the above-described polyolefin eg, maleic anhydride-modified polyethylene
  • EVA ethylene vinyl acetate copolymer
  • An example of the adhesive layer 13c is a mixture of low-density polyethylene or linear low-density polyethylene and acid-modified polyethylene.
  • FIG. 9A a laminated structure corresponding to the container body 3 to be manufactured (one example is PE layer / adhesive layer / EVOH layer / PP layer / repro layer / PP layer in order from the container inner surface side).
  • the laminated parison in a molten state provided with the laminated structure is extruded into a split mold for blow molding, and the split mold is closed.
  • FIG. 9B a blow nozzle is inserted into the opening on the mouth 9 side of the container body 3, and air is blown into the cavity of the split mold while the mold is clamped.
  • the split mold is opened and the blow molded product is taken out.
  • the split mold has a cavity shape such that various shapes of the container body 3 such as the valve member mounting recess 7a, the air circulation groove 7b, and the bottom seal protrusion 27 are formed in the blow molded product. Further, the split mold is provided with a pinch-off portion below the bottom seal protrusion 27, and a lower burr is formed at a lower portion of the bottom seal protrusion 27, and is thus removed.
  • the container main body 3 having the outer shell 12 and the inner bag 14 is formed by the above steps (container main body forming step).
  • the outside air introduction hole 15 is formed in the outer shell 12 of the container body 3 using the perforating apparatus 2 (outside air introduction hole forming step).
  • this process will be described in detail.
  • the container body 3 is set at a position close to the perforation apparatus 2.
  • the drilling device 2 includes a drilling drill 30 having a main body 31 and a tip 32, and a motor 2c that rotationally drives the drilling drill 30 through the transmission belt 2b.
  • the drilling device 2 is supported by a servo cylinder (not shown) that moves the drilling device 2 uniaxially by the rotation of the servo motor, and is in the direction of the arrow X1 in FIG. 10A and the direction of the arrow X2 in FIG. It is configured to be movable. With this configuration, the tip 32 can be pressed against the outer shell 12 of the container body 3 while rotating the drilling drill 30. Further, the tact time can be shortened by controlling the position and moving speed of the punching device 2 with a servo motor.
  • the drill 30 is provided with a cavity 33 extending from the main body 31 to the tip 32 (see FIGS. 11 to 12), and a ventilation pipe 2e communicating with the cavity 33 is connected thereto.
  • the ventilation pipe 2e is connected to an intake / exhaust device (not shown). Thereby, air suction from the inside of the drilling drill 30 and blowing of air into the inside of the drilling drill 30 are possible.
  • the tip 32 of the drilling drill 30 has a cylindrical shape with a C-shaped cross section, as shown in FIGS.
  • the distal end portion 32 is provided with a flat surface 34 and a notch portion 37, and a side surface of the notch portion 37 is a blade portion 38.
  • the side surface 32a of the distal end portion 32 may be perpendicular to the flat surface 34 as shown in FIG. 11, and as shown in FIG. 12, the tapered surface is inclined toward the center as the flat surface 34 is approached. It may be. In the latter case, since the edge of the formed outside air introduction hole 15 becomes a tapered surface that expands outward, there is an advantage that the valve member 4 can be easily inserted.
  • the radial width W of the flat surface 34 is preferably 0.1 to 0.2 mm, more preferably 0.12 to 0.18 mm. If the width W is too small, the inner bag 14 is likely to be damaged during drilling, and if the width W is too large, the blade portion 38 is difficult to contact the outer shell 12, making it difficult to perform drilling smoothly.
  • the range in which the notch 37 is provided is preferably 60 to 120 degrees, and more preferably 75 to 105 degrees. If this range is too large, the inner bag 14 is easily damaged during drilling, and if this range is too small, it is difficult to perform drilling smoothly.
  • the angle ⁇ of the inclined surface P2 with respect to the circumscribed surface P1 in the blade portion 38 is preferably 30 to 65 degrees, and more preferably 40 to 55 degrees. If the angle ⁇ is too small, the inner bag 14 is liable to be damaged during drilling, and if the angle ⁇ is too large, it is difficult to perform drilling smoothly.
  • the inner surface 35 of the distal end portion 32 is provided with a tapered surface 36 that extends toward the distal end.
  • the angle of the tapered surface 36 with respect to the flat surface 34 is preferably 95 to 110 degrees, and more preferably 95 to 105 degrees.
  • the angle ⁇ of the tapered surface 36 with respect to the direction X parallel to the rotation axis of the drilling drill 30 is preferably 5 to 20 degrees, and more preferably 5 to 15 degrees.
  • a concave or V-shaped substantially annular groove 39 having a depth of 0.05 to 0.1 mm and a width of 0.1 to 0.2 mm is formed on the inner surface 35 in a direction perpendicular to the flat surface 34 (of the drill 30 It is preferable to apply at a pitch of 0.2 to 1 mm in the direction X) parallel to the rotation axis. In this case, the cut pieces 15a are more easily transferred to the inner surface 35.
  • the pitch of the grooves 39 is more preferably 0.3 to 0.7 mm.
  • the inner surface 35 is preferably subjected to a blasting process, so that the cut piece 15a is further easily transferred to the inner surface 35.
  • the flat surface 34 is pressed against the outer shell 12 while rotating the drilling drill 30. At this time, the flat surface 34 slightly sinks into the outer shell 12. As a result, the outer shell 12 partially enters the cutout portion 37, the blade portion 38 contacts the outer shell 12, and the outer shell 12 is cut. When the flat surface 34 reaches the boundary between the outer shell 12 and the inner bag 14, the outer shell 12 is cut out in a circular shape to form a round hole-shaped outside air introduction hole 15. At this time, by aspirating the air inside the drilling drill 30, the cut piece 15 a formed by hollowing out the outer shell 12 is sucked into the cavity 33 of the drilling drill 30.
  • the inner bag 14 After the flat surface 34 reaches the boundary between the outer shell 12 and the inner bag 14, when the flat surface 34 is pressed against the inner bag 14, the inner bag 14 is peeled from the outer shell 12 toward the inside of the container body 3. Since it deform
  • the drilling drill 30 is used without being heated, and this has the advantage that the edge of the outside air introduction hole 15 is not melted and the edge is formed sharply. Moreover, in order to suppress the influence by the heat
  • the excavation device 15 is released from the tip of the drilling drill 30 by retracting the drilling device 2 in the direction of the arrow X ⁇ b> 2 and blowing air into the cavity 33 of the drilling drill 30. .
  • the formation of the outside air introduction hole 15 in the outer shell 12 is completed.
  • the inner bag 14 is preliminarily peeled from the outer shell 12 by blowing air between the outer shell 12 and the inner bag 14 through the outer air introduction hole 15 using the blower 43. (Preliminary peeling step). Further, by blowing a specified amount of air while preventing air leakage through the outside air introduction hole 15, it is easy to control the preliminary peeling of the inner bag 14. Preliminary peeling may be performed on the entirety of the accommodating portion 7 or may be performed on a part of the accommodating portion 7. Since this is not possible, it is preferable that the inner bag 14 is preliminarily peeled from the outer shell 12 over substantially the entire housing portion 7. The air may be blown between the outer shell 12 and the inner bag 14 by another method. For example, air can be blown between the outer shell 12 and the inner bag 14 through an opening provided in the outer shell 12 in the upper cylindrical portion 41 shown in FIG.
  • the insertion tool 42 is moved as indicated by the arrow X 1 direction to insert the insertion tool 42 from the outside air introduction hole 15. Then, the inner bag 14 is separated from the outer shell 12 by pushing the inner bag 14 into the container body 3 with the insertion tool 42 (inner bag separation step). According to this method, the inner bag 14 can be largely separated from the outer shell 12 locally.
  • the insertion tool 42 is a rod-like member having a rounded tip and a shape that can be inserted into the outside air introduction hole 15 without pushing out the outside air introduction hole 15.
  • the diameter of the insertion tool 42 is preferably substantially the same as the diameter of the outside air introduction hole 15 or smaller than the diameter of the outside air introduction hole 15.
  • a gap 45 is formed between the outer shell 12 and the inner bag 14 by a preliminary peeling process, so that when the insertion tool 42 is pressed against the inner bag 14, it is inserted.
  • the inner bag 14 can be easily moved toward the inside of the container body 3. Since it is deformed, the inner bag 14 is not damaged.
  • the robot arm 44 is moved in the direction of the arrow X1 while the valve member 4 is attracted by the robot arm 44, and the valve member 4 is moved into the outside air introduction hole 15.
  • the valve member 4 is mounted on the outer shell 12 (valve member mounting step).
  • the valve member 4 is inserted from the outside of the outer shell 12 by pushing the expanded diameter portion 5c of the valve member 4 into the outside air introduction hole 15 to be inserted therethrough.
  • the expansion diameter portion 5 c passes through the outside air introduction hole 15 while expanding the outside air introduction hole 15.
  • the expanded diameter portion 5 c moves vigorously toward the inside of the container body 3. At this time, if the expanded diameter portion 5c collides with the inner bag 14, the inner bag 14 may be damaged. However, in the present embodiment, the inner bag 14 is separated from the outer shell 12 in advance in the inner bag separating step. The expanded diameter portion 5c hardly contacts or does not contact the inner bag 14, and the inner bag 14 is not damaged. On the other hand, as shown in FIGS. 15 (c) to 15 (d), when the inner bag 14 is adjacent to the outer shell 12 without performing the inner bag separation step, the expanded diameter portion 5 c opens the outer air introduction hole 15. Immediately after passing, it may move toward the inside of the container body 3 and collide with the inner bag 14 to damage the inner bag 14. Therefore, it is important to perform the inner bag separating step before the valve member mounting step.
  • the upper cylindrical part 41 is cut.
  • the inner bag 14 is inflated by blowing air into the inner bag 14.
  • the inner bag 14 is filled with contents.
  • a cap 23 is attached to the mouth portion 9.
  • the housing portion 7 is covered with a shrink film to complete the product.
  • the hot air bending step may be performed before the outside air introduction hole opening step or before the inner layer preliminary peeling step.
  • the step of cutting the upper tubular portion 41 may be performed before the valve member 4 is inserted into the outside air introduction hole 15.
  • FIGS. 16 (a) to 16 (c) the product filled with the contents is tilted and the side surface of the outer shell 12 is held and compressed to discharge the contents.
  • the compressive force applied to the outer shell 12 since there is substantially no gap between the inner bag 14 and the outer shell 12, the compressive force applied to the outer shell 12 directly becomes the compressive force of the inner bag 14, and the inner bag 14 is compressed. The contents are discharged.
  • the cap 23 incorporates a check valve (not shown) and can discharge the contents in the inner bag 14, but cannot take outside air into the inner bag 14. Therefore, when the compressive force applied to the outer shell 12 after discharging the contents is removed, the outer shell 12 tries to return to its original shape by its own restoring force, but the inner bag 14 remains deflated and only the outer shell 12 remains. Will expand. Then, as shown in FIG. 16 (d), the inside of the intermediate space 21 between the inner bag 14 and the outer shell 12 is in a depressurized state, and outside air is introduced into the intermediate space 21 through the outside air introduction hole 15 formed in the outer shell 12. be introduced.
  • a check valve not shown
  • Second Embodiment A delamination container according to a second embodiment of the present invention will be described with reference to FIG.
  • the configuration of the valve member 4 is different.
  • the shape of the cylindrical body 5 on the side of the expanded diameter portion 5c and the shape of the stopper portion 5h are different. This is the main difference from the member 4.
  • the difference will be mainly described.
  • the opening 5e is provided on the flat surface 5d of the cylindrical body 5, but in this embodiment, as shown in FIG. 19 (c), the bottom of the cavity 5g is provided. 5k is positioned on the raised bottom with respect to the flat surface 5d, that is, on the external space S side, and an opening 5e is provided in the bottom 5k.
  • the slit 5e2 does not face the flat surface 5d, and the sharp corner of the bottom 5k formed by the slit 5e2 does not hit the inner bag 14, and the damage to the inner bag 14 can be further suppressed.
  • the slit 5e2 has one slit 5e2 extending 90 degrees in the circumferential direction. Even in such a shape, the movable body 6 contacts the bottom 5k. Air flow is not obstructed even in contact.
  • the stopper portion 5h of the present embodiment has a gently tapered surface 5h1 on the cavity 5g side.
  • the ratio r h / t between the width t from the side surface of the cavity 5g to the vertex Q1 that protrudes most in the direction of the cavity 5g and the height h from the taper start point Q2 to the vertex Q1 is 1 or more. Yes.
  • the ratio r is preferably 1.0 to 3.0, and more preferably 2.0 to 3.0.
  • the surface 5h2 on the outer space S side (opposite the cavity portion 5g) is also tapered, so that the moving body 6 can be easily inserted into the cavity portion 5g.
  • Each of the surface 5h1 and the surface 5h2 is configured to be smoothly connected to the side surface of the cavity portion 5g.
  • the curvature radius of the curve forming the side surface of the cavity portion 5g is configured to continuously change. ing.
  • the diameter of the moving body 6 is smaller than the diameter of the moving body 6 of the first embodiment shown in FIG. 8, and the shaft portion 5a and the expanded diameter portion 5c of the cylindrical body 5 are thickened accordingly.
  • the wall thickness of the shaft portion 5a and the expanded diameter portion 5c of the cylindrical body 5 is preferably 0.2 to 1 times the diameter of the moving body 6, and more preferably 0.3 to 0.6 times.
  • FIGS. 3 Third Embodiment A delamination container according to a third embodiment of the present invention will be described with reference to FIGS.
  • the third embodiment is different from the above-described two embodiments only in the configuration of the valve member 4.
  • the third embodiment is mainly different in the shape of the member related to the hollow portion 5 g of the cylindrical body 5. This is a major difference.
  • the difference will be mainly described.
  • the moving body 6 is pushed into the hollow portion 5 g so as to get over the stopper portion 5 h from the external space S side, thereby moving the moving body 6 into the hollow portion.
  • the movable body 6 is moved from the intermediate space 21 side into the hollow portion 5g so as to get over a protrusion 5e3 described later.
  • the moving body 6 can be arranged in the cavity 5g by being pushed into the space.
  • the stopper portion 5h may be deformed when the moving body 6 is pushed into the hollow portion 5g from the external space S side.
  • the cylinder 5 has a plurality of protrusions 5e3 on a surface 5j surrounding the cavity 5g.
  • the protrusion 5e3 is provided to hold the moving body 6 pushed into the cavity 5g and prevent it from falling to the intermediate space 21 side.
  • FIG. 20 (h) which is an enlarged view of the V portion of FIG. 20 (c)
  • the protrusion 5e3 has a gently tapered surface 5e4 on the cavity 5g side.
  • the ratio R H / T of the width T from the side surface to the vertex Q3 that protrudes most in the direction of the cavity 5g and the height H from the taper starting point Q4 to the vertex is 1 or more.
  • This ratio R is preferably 1.0 to 3.0, and more preferably 2.0 to 3.0.
  • the surface 5e5 on the intermediate space 21 side also has a tapered shape, so that the movable body 6 can be easily inserted into the cavity 5g.
  • Each of the surface 5e4 and the surface 5e5 is configured to be smoothly connected to the side surface of the cavity portion 5g.
  • the curvature radius of the curve forming the side surface of the cavity portion 5g is configured to continuously change. ing.
  • the angle that one protrusion 5e3 occupies in the circumferential direction is about 40 degrees, and four protrusions 5e3 are provided at equal intervals (see FIG. 20B).
  • a portion where the diameter of the cavity portion 5g decreases toward the part of the external space S side of the surface 5j surrounding the cavity portion 5g is formed as the stopper portion 5h.
  • the cylindrical body 5 is thick in an arc shape in a sectional view so as to protrude toward the hollow portion 5g. Even in such a shape, when the moving body 6 abuts against the stopper portion 5h as shown in FIG. 20 (g), the air flow through the cavity portion 5g is blocked.
  • the stopper part 5h By setting it as such a shape, compared with the case where the stopper part 5h of embodiment mentioned above is used as a cyclic
  • the radius of curvature of the portion in contact with the moving body 6 in the cross-sectional view of the stopper portion 5h is large, the moving body 6 does not come out to the external space S side even if there is a slight dimensional error, and the stopper portion 5h A gap is unlikely to be generated when abutting against the moving body 6, and has an advantageous shape for reliably abutting against the stopper portion 5 h and blocking the air flow.
  • the cylinder 5 is formed by injection molding using a mold 51 including an upper mold 52 and a lower mold 53 as shown in FIG.
  • the cylindrical body in the above-described embodiment is also formed by injection molding, the diameter of the cavity 5g is larger than the opening 5d, and the core pin forming the cavity 5g is connected to the external space S side, that is, the locking part 5b. It was configured to be removed from the side.
  • the hollow portion 5g has a shape in which the inner diameter becomes smaller toward the external space S side, and the core pin 54 forming the hollow portion 5g is pulled out from the intermediate space 21 side, that is, the expanded diameter portion 5c side. It has become.
  • the core pin 54 is formed integrally with the lower mold 53.
  • the stopper portion 5 h responsible for opening and closing the valve which is the main function of the valve member 4, pulls out the core pin 53.
  • This stopper portion 5h can be formed with high accuracy in combination with the fact that the movable body 6 is pushed into the hollow portion 5g from the intermediate space 21 side without being turned over.
  • the parting surface Ps of the mold 51 shown in FIG. 21 may be set at any position as long as it is within the range of the thickness of the locking portion 5b. It is possible to prevent burrs generated on the sealing surface from damaging the container body 4 when the valve member 5 is mounted.
  • the upper mold 52 is formed in a substantially planar shape, but a portion 55 having the smallest diameter at the tip of the core pin 53 may be provided on the upper mold 52 side.
  • the point that the communication hole 5m (see FIG. 20 (c)) with the cavity 5g facing the external space S side is smaller than that in the above-described embodiment is that foreign matter enters from the outside. This is also advantageous in terms of prevention.
  • the stopper portion 5h formed by the surface 5j surrounding the cavity portion 5g has an arc shape that protrudes toward the cavity portion 5g in a cross-sectional view, but the first modification shown in FIG. Then, the stopper portion 5h has an arc shape that protrudes on the opposite side of the cavity portion 5g in a cross-sectional view.
  • the moving body 6 comes into contact with a wide surface when contacting the stopper portion 5h (FIG. 22C). See), and the air flow through the hollow portion 5g can be blocked more effectively.
  • Other configurations are the same as those of the third embodiment, and the same effects as those of the above embodiment can be obtained.
  • Modification 2 shown in FIG. 23 is different from the third embodiment in that the protrusion 5e3 includes a tapered surface having the same inclination angle both on the intermediate space 21 side and the external space S side. Also in this modified example, the same effect as the above embodiment can be obtained, and further, there is an advantage that the moving body 6 can be easily inserted into the hollow portion 5g.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

L'invention porte sur un récipient à séparation à stratification qui a une excellente productivité. A cet effet, la présente invention porte sur un récipient à séparation à stratification, lequel récipient comprend ce qui suit : un corps de récipient qui a une enveloppe externe et un sac interne, et dans lequel le sac interne se sépare de l'enveloppe externe et se contracte en association avec une réduction des contenus ; et un élément de vanne qui ajuste l'entrée et la sortie d'air entre un espace intermédiaire entre l'enveloppe externe et le sac interne et un espace externe du corps de récipient. Le corps de récipient comporte : une partie de réception qui reçoit les contenus ; et un orifice qui décharge les contenus à partir de la partie de réception. L'enveloppe externe comporte, dans la partie de réception, un trou d'introduction d'air externe qui permet une communication entre l'espace intermédiaire et l'espace externe. L'élément de vanne comporte : un corps cylindrique qui a une partie creuse disposée de façon à permettre une communication entre l'espace externe et l'espace intermédiaire ; et un corps mobile qui est reçu à l'intérieur de la partie creuse de façon à être mobile. Le corps cylindrique comporte : une partie arbre qui est disposée à l'intérieur du trou d'introduction d'air externe ; et une partie de verrouillage qui est disposée sur le côté espace externe de la partie arbre, et qui empêche le corps cylindrique d'entrer dans l'espace intermédiaire. La partie arbre a une forme qui s'effile vers le côté espace intermédiaire. La surface périphérique externe de la partie arbre vient en contact étroit avec le bord du trou d'introduction d'air externe, et, en résultat de cela, le corps cylindrique est adapté au corps de récipient. Le corps cylindrique a, au niveau d'une surface qui entoure la partie creuse, une partie d'élément d'arrêt qui verrouille le corps mobile quand le corps mobile se déplace à partir du côté espace intermédiaire vers le côté espace externe. La partie d'élément d'arrêt est conçue de telle sorte que, quand le corps mobile bute sur la partie d'élément d'arrêt, l'écoulement d'air à travers la partie creuse est bouché.
PCT/JP2015/081997 2014-11-19 2015-11-13 Récipient à séparation à stratification WO2016080313A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US15/527,882 US10464706B2 (en) 2014-11-19 2015-11-13 Lamination separation container
EP15861777.9A EP3222541B1 (fr) 2014-11-19 2015-11-13 Récipient à séparation à stratification
CN201580058451.3A CN107074395B (zh) 2014-11-19 2015-11-13 层叠剥离容器
KR1020197026827A KR102173533B1 (ko) 2014-11-19 2015-11-13 적층박리용기
KR1020177014062A KR102023136B1 (ko) 2014-11-19 2015-11-13 적층박리용기

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JP2014234323 2014-11-19
JP2014-234323 2014-11-19
JP2015090244A JP6761159B2 (ja) 2014-11-19 2015-04-27 積層剥離容器
JP2015-090244 2015-04-27

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JPH06504748A (ja) * 1990-02-22 1994-06-02 ザ、プロクター、エンド、ギャンブル、カンパニー 袋が潰れないようにするための手段が挿入してある袋入絞り出しボトル流体小分け容器
JPH09301443A (ja) * 1996-05-16 1997-11-25 Yoshinobu Toyomura 簡易保温式容器とこれに使用する空気抜き
JPH11325284A (ja) * 1998-05-11 1999-11-26 Sekisui Plastics Co Ltd 逆止弁および断熱コンテナ
JP2001058673A (ja) * 1999-08-23 2001-03-06 Toppan Printing Co Ltd 包装容器
JP2001146260A (ja) * 1999-11-19 2001-05-29 Taisei Kako Co Ltd 吐出容器
JP2003321038A (ja) * 2002-04-30 2003-11-11 Yoshino Kogyosho Co Ltd 注出容器
JP2004149196A (ja) * 2002-10-31 2004-05-27 Yoshino Kogyosho Co Ltd デラミボトル容器における内、外層間の等気圧維持・漏気阻止機構
JP2006263464A (ja) * 2005-03-22 2006-10-05 Young Kwang Byun 液状化粧品容器
JP2010274963A (ja) * 2009-05-28 2010-12-09 Yoshino Kogyosho Co Ltd ポンプ付き薄肉ボトル

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06504748A (ja) * 1990-02-22 1994-06-02 ザ、プロクター、エンド、ギャンブル、カンパニー 袋が潰れないようにするための手段が挿入してある袋入絞り出しボトル流体小分け容器
JPH09301443A (ja) * 1996-05-16 1997-11-25 Yoshinobu Toyomura 簡易保温式容器とこれに使用する空気抜き
JPH11325284A (ja) * 1998-05-11 1999-11-26 Sekisui Plastics Co Ltd 逆止弁および断熱コンテナ
JP2001058673A (ja) * 1999-08-23 2001-03-06 Toppan Printing Co Ltd 包装容器
JP2001146260A (ja) * 1999-11-19 2001-05-29 Taisei Kako Co Ltd 吐出容器
JP2003321038A (ja) * 2002-04-30 2003-11-11 Yoshino Kogyosho Co Ltd 注出容器
JP2004149196A (ja) * 2002-10-31 2004-05-27 Yoshino Kogyosho Co Ltd デラミボトル容器における内、外層間の等気圧維持・漏気阻止機構
JP2006263464A (ja) * 2005-03-22 2006-10-05 Young Kwang Byun 液状化粧品容器
JP2010274963A (ja) * 2009-05-28 2010-12-09 Yoshino Kogyosho Co Ltd ポンプ付き薄肉ボトル

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