WO2017109866A1 - 中蓋付き密閉容器 - Google Patents

中蓋付き密閉容器 Download PDF

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Publication number
WO2017109866A1
WO2017109866A1 PCT/JP2015/085876 JP2015085876W WO2017109866A1 WO 2017109866 A1 WO2017109866 A1 WO 2017109866A1 JP 2015085876 W JP2015085876 W JP 2015085876W WO 2017109866 A1 WO2017109866 A1 WO 2017109866A1
Authority
WO
WIPO (PCT)
Prior art keywords
partition wall
container
inner lid
container body
lid
Prior art date
Application number
PCT/JP2015/085876
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
佐藤　達哉
雄三 吉田
Original Assignee
吉田プラ工業株式会社
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
Application filed by 吉田プラ工業株式会社 filed Critical 吉田プラ工業株式会社
Priority to PCT/JP2015/085876 priority Critical patent/WO2017109866A1/ja
Priority to JP2017557561A priority patent/JP6622328B2/ja
Priority to EP15911304.2A priority patent/EP3395714A4/de
Priority to KR1020187016279A priority patent/KR20180098244A/ko
Priority to US16/060,419 priority patent/US20190002167A1/en
Publication of WO2017109866A1 publication Critical patent/WO2017109866A1/ja

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Classifications

    • 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
    • B65D79/00—Kinds or details of packages, not otherwise provided for
    • B65D79/005—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting
    • B65D79/0087—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting the deformable part being located in a closure, e.g. in caps or lids
    • 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/16—Snap-on caps or cap-like covers
    • B65D41/18—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics
    • B65D41/185—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics with integral internal sealing means
    • 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0204—Removable lids or covers without integral tamper element secured by snapping over beads or projections
    • B65D43/0212—Removable lids or covers without integral tamper element secured by snapping over beads or projections only on the outside, or a part turned to the outside, of the mouth
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1605—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior
    • B65D51/1611—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior by means of an orifice, capillary or labyrinth passage
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/00074—Shape of the outer periphery curved
    • B65D2543/00092—Shape of the outer periphery curved circular
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00231—Overall construction of the lid made of several pieces
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00296—Plastic
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00342—Central part of the lid
    • B65D2543/00351—Dome-like
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00564—Contact between the container and the lid indirect by means of a gasket or similar intermediate ring
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00601—Snapping means on the container
    • B65D2543/00611—Profiles
    • B65D2543/00629—Massive bead
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00722—Profiles
    • B65D2543/0074—Massive bead
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00787—Periphery concerned
    • B65D2543/00805—Segments
    • 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0214—Removable lids or covers without integral tamper element secured only by friction or gravity
    • B65D43/0218—Removable lids or covers without integral tamper element secured only by friction or gravity on both the inside and the outside of the mouth of the container

Definitions

  • the present invention relates to a sealed container with an inner lid. Specifically, the present invention relates to an airtight container with an inner lid that is sealed in an airtight state by attaching an inner lid to the opening of the container body.
  • the sealed container with an inner lid targeted by the present invention includes a container main body, an outer lid that covers the opening of the container main body and also functions as an exterior body of the container, and an attachment / detachment for sealing the opening of the container main body in an airtight state. It has a possible inner lid.
  • the inner lid has a dish-like structure in which a partition wall portion serving as a bottom surface is integrally formed inside a frame body having a flange formed at the upper end.
  • the inner lid is fitted in the opening of the container main body, and when the inner lid is fitted in the opening, the outer peripheral surface of the frame body in the inner lid is in close contact with the inner surface of the opening side end of the container main body, and the flange The lower surface of the container abuts on the upper peripheral surface around the opening of the container body.
  • the container main body is shallow, or the container main body is filled with liquid or gel-like contents to the vicinity of the opening
  • the compression ratio of the air in the container body before and after the inner lid is attached is increased. That is, as the frame of the inner lid is inserted into the container main body, the pressure in the container main body increases, and the inner lid is urged upward by the internal pressure so that the inner lid can be easily attached to the container main body. Cannot be installed. Even if it can be mounted, the inner lid may come off due to impact or vibration because the internal pressure is still involved. Of course, if the inner lid is carefully attached while allowing air in the container body to escape, the inner lid may be securely attached. However, in this case, the inside lid cannot be easily removed because the inside of the container has a negative pressure.
  • Patent Document 1 describes a compact container including an inner plate and a soft elastic material seal portion having a thin central deformation portion curved in a spherical arc shape.
  • this seal body When this seal body is attached to the opening of the intermediate dish body, the central deformation portion is deformed as the internal pressure of the intermediate dish body increases, and the increased internal pressure is absorbed. That is, the central deformation part functions as a diaphragm.
  • the inner lid is made into a container body by providing a bottom surface that functions as a diaphragm on a dish-shaped inner lid having a flange like the compact container described in Patent Document 1. It is considered that the increase in the internal pressure at the time of mounting in the opening is absorbed, and attachment / detachment becomes easy.
  • the sealing body has a substantially disk shape, and a complex uneven structure is formed on both the upper and lower surfaces of the outer peripheral region of the central deformation portion. In addition, unevenness that engages with the uneven shape is also formed on the lower surface of the outer lid and the upper end surface of the opening periphery of the inner tray.
  • the compact container includes a main body, an outer lid that opens and closes by a hinge on the main body, and an assembly ring body that is a separate object from the inner tray, and the assembly ring body engages with an engagement circumferential groove of the seal body.
  • the shape of the sealing body made of a soft elastic material is maintained.
  • the inner lid of an airtight container with an inner lid has a simple structure with a partition wall inside the frame with a flange, and if the partition wall functioning as a diaphragm is provided, the opening periphery of the container body is special. It is not necessary to form in a shape, and cost reduction is easy.
  • the simple structure of the inner lid there is a concern that the contents may leak if the inner lid is attached to the container body under atmospheric pressure and then placed in a decompressed environment such as an altitude or an aircraft luggage compartment. Is done. Specifically, when the atmospheric pressure around the container body in a sealed state decreases, the internal pressure relatively increases, and the diaphragm tends to bend further upward.
  • the flange may be the end face of the opening edge of the container body or the outside. Since it is not formed so as to engage with the inner shape of the lid, it can be said that liquid leakage is more likely to occur than the compact container described in Patent Document 1.
  • an object of the present invention is to provide an airtight container with an inner lid that has a simple structure that can be manufactured at low cost and has a high function that can prevent leakage of contents even under a reduced pressure environment.
  • a sealed container with an inner lid provided,
  • a partition wall portion that is easily elastically deformed with respect to the frame body is formed on the inner side of the frame body having a flange at an upper end, and the outer peripheral side surface of the frame body is in a state of being attached to the container body.
  • the partition wall Adhering closely to the inner surface of the container body on the open end side,
  • the partition wall is formed in a dome shape protruding downward in an initial state where the inner lid is not attached to the container body, and is formed to be deformable into a dome shape protruding upward
  • the outer lid has a central area formed of a dome-shaped recess inside the top surface and a peripheral area that circulates around the recess annularly, and the outer lid is mounted on the container body while the outer lid is mounted on the container.
  • the central region In the closed state covering the opening of the main body, the central region faces the partition wall portion and the peripheral region abuts on the upper surface of the flange portion,
  • the inner surface of the central region is formed in a shape that regulates the surface area of the partition wall in the deformed state to be equal to or less than the surface area of the partition wall in the initial state when the partition wall is deformed so as to protrude upward.
  • It is set as the airtight container with an inner lid characterized by the above.
  • the height difference between the peripheral edge position of the partition wall and the upper end of the central area in the closed state is not more than the height difference between the lower edge of the partition wall and the peripheral edge, and the surface area of the central area facing the partition wall Is not more than the surface area of the upper surface of the partition wall in the initial state.
  • the inner lid is preferably an airtight container with an inner lid having a shape in which a peripheral edge of the partition wall portion is connected to an inner peripheral upper end of the flange portion.
  • the vent is a groove extending in the radially outward direction formed in at least one of the peripheral region or the upper surface of the flange.
  • the sealed container with an inner lid according to any one of the above, wherein the outer lid has a mounting mechanism that engages with an upper end surface shape of the container body inward, and closes the opening at the top surface portion.
  • the container body When the container body is pressed from above to below, it can be configured to be mounted on the container body by the mounting mechanism.
  • the sealed container with an inner lid According to the sealed container with an inner lid according to the present invention, it can be manufactured at a low cost with a simple structure, and leakage of contents can be prevented even under a reduced pressure environment. Other effects will be clarified in the following description.
  • FIG. 1 is an external view of an airtight container with an inner lid (hereinafter referred to as an airtight container 1a) according to a first embodiment of the present invention. As shown in FIG. 1, the airtight container 1a has a substantially cylindrical shape.
  • the cylindrical shaft 100 of the cylindrical sealed container 1a is defined as the vertical direction, and the vertical direction is defined assuming that the cap 3 is mounted above the container body 2, the cap 3 is a bottomed cylinder whose lower end side is open.
  • the top surface portion 10 serving as a canopy is bonded to the upper end side of the hollow cylindrical body portion 31 and the opening on the upper end side is closed.
  • a mechanism for mounting the cap on the container body 2 (hereinafter referred to as mounting mechanism) is built in the cap 3.
  • a rectangular hole 32 that communicates the inside and the outside is formed in the body portion 31, and a push button 41 that is a part of the mounting mechanism projects outwardly through the hole.
  • FIG. 2 is an exploded perspective view of the sealed container 1a for each member.
  • the container body 2 has a two-stage cylindrical outer shape in which a hollow cylindrical neck portion 22 having a reduced diameter is continuously provided above a diameter-enlarged bottomed cylindrical storage portion 21 that is a storage space for contents.
  • the upper end of the neck portion 22 is an opening 24.
  • the inner surface 23 of the container body 2 has a bottomed cylindrical shape that maintains the shape of the opening 24 and reaches the bottom surface 25, and the accommodating portion 21 is an expanded cylindrical portion that forms an outer peripheral portion regardless of whether it is hollow or bottomed. It has a double cylindrical shape in which a bottomed cylindrical portion having a reduced diameter continuous downward from the neck portion 22 is formed inside.
  • a projection 26 for engaging with the mounting mechanism 4 in the cap 3 is formed around the outer periphery of the neck portion 22, and this projection (hereinafter referred to as the circumferential projection 26) has a flat bottom surface and a tapered top surface. Is formed.
  • the body portion 31 and the disk-shaped top surface portion 10 are configured separately, and the top surface portion 10 is bonded to the upper end side of the body portion 31.
  • a hollow cylindrical peripheral wall 14 is formed concentrically with the outer periphery of the top surface portion 10 on the lower surface of the top surface portion 10, and a part of the top surface wall portion 14 has a plurality of vertically extending portions.
  • a slit 18 is formed, and between the adjacent adjacent slits in the top wall 14 is a tongue piece 17 that is bent radially outward with the upper end of the top wall 14 as a fulcrum. The operation of the top wall 14 will be described later.
  • the mounting mechanism 4 built in the body 31 has a structure in which the above-described push buttons 41 are integrally projected at two locations on the outer surface of an elastic elliptical annular frame (hereinafter referred to as a mounting frame 42). is doing.
  • a support piece 33 for supporting the mounting frame 42 is formed on the inner surface of the body portion 31 of the cap 3 so as to protrude inward.
  • the push button 41 in the mounting mechanism 4 is formed facing the major axis direction of the elliptical annular mounting frame 42, and when the two push buttons 41 are pressed in the direction facing each other, the major axis of the elliptical annular mounting frame 42 is formed. Increases in the short axis direction as it is elastically deformed in the diameter reducing direction. Further, a projection (hereinafter referred to as an engagement projection 43) that protrudes in the form of a tongue piece is formed on the inner surface of the mounting frame 42 on the short axis side.
  • the engagement projection 43 has a flat upper surface and a tapered lower surface. ing.
  • the lower surface of the tapered engagement projection 43 and the upper surface of the circumferential projection 26 of the neck portion 22 come into contact with each other. Urges the engaging protrusion 43 outward.
  • the elliptical mounting frame 42 in the mounting mechanism 4 is elastically deformed in the diameter-expanding direction on the short axis side, and the engagement protrusion 43 gets over the circular protrusion 26.
  • the mounting frame 42 returns to the original elliptical ring shape, the flat upper surface of the engagement protrusion 43 and the lower surface of the circumferential protrusion 26 are engaged with each other. In this way, the cap 3 is attached to the neck portion 22.
  • FIG. 3 shows the structure of the inner lid 5a.
  • the inner lid 5a is an integrally molded product made of polypropylene, and as shown in FIG. 3, has a structure in which a partition wall 51 serving as a bottom surface is formed inside a frame body having a flange 52 formed at the upper end. Yes.
  • the inner lid 5 a is formed in a flat hollow cylindrical frame-like portion (hereinafter referred to as an outer peripheral portion 53), a flange 52 formed at the upper end of the outer peripheral portion 53, and an inner side of the outer peripheral portion 53.
  • a partition wall 51 is formed in a flat hollow cylindrical frame-like portion (hereinafter referred to as an outer peripheral portion 53), a flange 52 formed at the upper end of the outer peripheral portion 53, and an inner side of the outer peripheral portion 53.
  • a partition wall 51 is formed in a flat hollow cylindrical frame-like portion (hereinafter referred to as an outer peripheral portion 53), a flange 52 formed at the upper end of the outer peripheral portion 53, and an inner side of the outer peripheral portion 53.
  • the partition wall portion 51 has a peripheral edge 54 connected to the outer peripheral portion 53 at the upper end position of the flange 52, and in this example, the initial shape is a dome shape protruding downward to become a part of a spherical shell.
  • the partition wall portion 51 is formed to be thin with respect to the outer peripheral portion 53 so as to be easily elastically deformed, and the peripheral edge 54 of the partition wall portion 51 is configured to be thinner than other regions of the partition wall portion 51.
  • the partition wall 51 is configured to be deformed in the vertical direction with the thin peripheral edge 54 as a fulcrum.
  • the material for the inner lid 5a may be any material that can be elastically deformed. For example, an appropriate material such as polyethylene, silicone, rubber, or the like can be used.
  • the sealed container 1a according to the first embodiment shown in FIGS. 1 and 2 is characterized by the structure of the inner lid 5a and the shape of the inner surface 11 of the top surface 10 constituting the cap 3, and the container body
  • the inner lid 5a can be easily attached to and detached from the container 2, and the contents are difficult to leak out even in the reduced pressure environment of the sealed container 1a with the container main body 2 sealed by the inner lid 5a.
  • FIG. 4 shows the mounting structure of the cap 3 and the inner lid 5a on the container body 2 and the operation of the inner lid.
  • FIG. 4 is an enlarged vertical cross-sectional view of the upper part of the sealed container 1a.
  • FIG. 4 (A) shows a state in which the inner lid 5a is attached under an atmospheric pressure environment
  • surroundings is shown.
  • a mounting structure diagram of the cap 3 and the inner lid 5a to the container body 2 will be described with reference to FIG.
  • the region 12 facing the partition wall 51 is a concave dome shape that becomes a part of the spherical shell, and the region (hereinafter referred to as the central region 12) that surrounds the periphery of the region (hereinafter referred to as the central region 12).
  • the peripheral region 13) is formed in a shape that contacts the upper surface of the flange 52 of the inner lid 5a.
  • a projection 19 projecting inward is formed on the inner surface on the upper end side of the tongue piece portion 17 formed in a part of the top wall portion 14, and the flange 52 of the inner lid 5 a is supported by the projection 19. ing.
  • the inner lid 5a is held inside the top wall 14 and is attached to the top 10. Further, the outer diameter of the flange 52 is smaller than the inner diameter of the top wall portion 14, and the inner lid 5a is held inside the top wall portion 14 with play. Thereby, even if the outer lid 10 and the inner lid 5a are not exactly coaxially arranged, the outer peripheral edge of the flange 52 is pressed against the inner surface of the top wall portion 14, and the plane of the flange 52 and the outer peripheral portion 53 continuous thereto. The shape does not deform. That is, the sealing degree of the container body 2 by the inner lid 5a does not decrease.
  • a protrusion 15 that protrudes inward is also formed at the lower end of the tongue piece 17 of the top surface wall portion 14, and this protrusion 15 is engaged with the irregular shape of the neck portion 22 of the container body 2.
  • the upper surface of the flange portion 52 of the inner lid 5 a comes into close contact with the peripheral region 13.
  • FIG. 4A in the state where the cap 3 is mounted on the container body 2, the inner lid 5a has a flange 52 at the upper end surface 27 of the periphery of the opening 24 of the container body 2 and the peripheral region of the top surface portion 10.
  • the partition wall portion 51 uses its peripheral edge 54 as a fulcrum. Elastically deforms. Specifically, the initial shape of the partition wall portion 51 is a dome shape with a deep bottom as shown by the chain line in the figure, but the lower surface 56 of the partition wall portion 51 is pushed upward by the increase in the internal pressure of the container body 2. And elastically deforms.
  • the bottom is elastically deformed so as to have a shallow dome shape. That is, the increase in internal pressure is absorbed by expanding the volume of the closed space 8 formed by the upper surface 7 of the contents 6 and the lower surface 56 of the partition wall 51 in the container body 2.
  • the partition wall portion 51 exceeds the upper end position of the outer peripheral portion 53 and protrudes upward.
  • the upper surface 57 of the partition wall portion 51 comes into contact with the inner surface 11 of the top surface portion 10.
  • the height difference (hereinafter referred to as initial depth D) from the vertical position of the peripheral edge 54 of the partition wall 51 to the initial lower end of the partition wall 51 is the dome-shaped center of the top surface 10 from the upper end position of the peripheral edge 54 of the partition wall 51.
  • the top surface height H When the difference in height to the highest point of the region 12 (hereinafter referred to as the top surface height H) is smaller, if the pressure difference between the inside and outside of the container body 2 is extremely large, the upper surface of the partition wall portion 51 after deformation from the upper end position of the peripheral edge 54 of the partition wall portion 51. There is a possibility that the difference in height (hereinafter referred to as deformation height h) up to the highest point of 57 exceeds the height of the same distance as the initial depth D and deforms. When the deformation height h is deformed beyond the same distance as the initial depth D, the partition wall portion 51 becomes larger than the initial surface area.
  • peripheral edge 54 of the partition wall portion 51 is connected to the outer peripheral portion 53, a force in the direction of diameter reduction is applied to the flat cylindrical outer peripheral portion 53, and the outer surface 55 of the outer peripheral portion 53 and the inner surface 23 of the container body 2 May be reduced, and the contents 6 may leak due to a large pressure difference between the inside and outside of the container body 2.
  • the top surface height H is the initial depth D or less (D ⁇ H), and the deformation height h is always D or less. . Therefore, the original dome-shaped partition wall portion 51 protruding downward is deformed into a dome shape protruding upward, and the upper surface 57 of the partition wall portion 51 abuts against the inner surface 11 of the top surface portion 10 and conforms to the inner surface shape of the central region 12. Even if it is deformed, stress in the diameter reducing direction is not applied to the outer peripheral portion 53. That is, if the surface area of the upper surface 57 or the lower surface 56 of the partition wall portion 51 is small before and after the deformation, the outer peripheral portion 53 is applied with force only in the diameter increasing direction.
  • the outer surface 55 of the outer peripheral portion 53 tends to be in close contact with the inner surface 23 of the container body 2 as the partition wall portion 51 is deformed. Therefore, in the sealed container 1a according to the first embodiment, the structure for attaching the inner lid 5a and the inner lid 5a to the container body 2 is simple, but the leakage of the contents 6 is surely prevented even under a reduced pressure environment. can do.
  • transforms into an up-down direction is provided, and the opening 24 of the container main body 2 can be easily sealed in an airtight state by the inner lid 5a, or the attached inner lid 5a can be easily removed.
  • the peripheral region 13 of the top surface portion 10 of the cap 3 is the inner lid. Since it is in contact with the upper surface of the flange 52 of 5a, the dome-shaped central region 12 is sealed.
  • the cap 3 in the first embodiment has a constant positional relationship with the container body 2 in the vertical direction, and the contact state between the lower surface 16 of the peripheral region 13 and the flange 52 is kept constant. .
  • the cap 3 is pressed downward or the like, and the peripheral region 13 and the flange 52 are in a tight contact state, the air in the central region 12 may be difficult to escape outward.
  • the cap is a screw cap.
  • the contact state changes depending on the depth of screwing, and when the cap is tightened strongly, the screw cap strongly contacts and the communication path between the central region 12 and the outside air is blocked.
  • the partition wall 51 is difficult to deform. For example, when the sealed container 1a is placed in a reduced pressure environment after the partition wall 51 is deformed and the cap 3 is strongly pressed downward, the space formed by the central region 12 and the partition wall 51 is negative pressure. Is maintained.
  • FIG. 5 shows the structure of the sealed container cap 103 according to the second embodiment.
  • FIG. 5 shows an exploded perspective view of the cap 103 as viewed from below.
  • the sealed container according to the second embodiment is the same as the sealed container of the first embodiment except for a part of the structure of the top surface portion 110.
  • the structure and operation of the top surface portion 110 in the second embodiment will be described below.
  • the cap 103 is configured by the top surface portion 110, the body portion 31, and the mounting mechanism 4, as in the first embodiment, but the cap 103 has a dome-shaped central region 12 and A vent 111 for communicating with outside air is formed.
  • a groove 111 extending from the outer peripheral side of the central region 12 in the radial outward direction and crossing the peripheral region 13 to reach the outside of the top wall 14 is formed as a vent.
  • the outer side of the top wall portion 14 is the inner surface of the barrel portion 31, and communicates with the outside by a lower end opening of the barrel portion 31 and a hole 32 through which the push button 41 of the mounting mechanism 4 is led out.
  • the container body may have any external shape or internal structure as long as the inner surface is in close contact with the outer surface of the outer peripheral portion in the region where the outer peripheral portion of the inner lid is inserted from the opening.
  • the central region of the inner lid partition and top surface may be a dome shape and need not be part of a spherical shell.
  • the cross-sectional shape of the partition wall 51 may be corrugated, such as a shape in which the vicinity of the center of the partition wall 51 protrudes upward.
  • the peripheral edge 54 of the partition part 51 may be connected to the inner surface of the outer peripheral part 53 below the flange part like the inner lid 5c shown in FIG. In this example, the peripheral edge 54 of the partition wall portion 51 is connected to the lower end of the outer peripheral portion 53.
  • FIG. 8 is a view showing a mechanism by which the contents in the container body leak due to the shape of the inner lid 5c shown in FIG.
  • the constituent members of the cap other than the top surface portion 210 are omitted.
  • FIG. 8A the pressure in the container body 2 rises and the partition wall 51 protrudes upward as shown in FIG. 8B, whereas the partition wall 51 protrudes downward.
  • the peripheral edge 54 of the partition wall portion 51 is moved toward the lower end side of the outer peripheral portion 53 by the pressure indicated by the white arrow 101 in the figure.
  • a force is applied in the direction of diameter reduction.
  • the deformation speed of the partition wall 51 cannot catch up with the increase in pressure, and the force in the direction of diameter reduction cannot be ignored.
  • FIG. 8C in which the inside of the circle 200 in FIG. 8B is enlarged, the lower end side of the outer peripheral portion 53 bends inward, and the outer surface 55 of the outer peripheral portion 53 and the inner surface 23 of the container body 2. The degree of adhesion decreases.
  • the peripheral portion of the dome-shaped central region 12 in the top surface portion 310 is formed so as to contact the upper surface of the peripheral portion 54 of the partition wall portion 51, as in the sealed container 1 c in which a part of the cap configuration shown in FIG. 9 is omitted. If this is the case, the entire area of the upper surface 57 of the partition wall 51 abuts against the inner surface 11 of the top surface 310 when the partition wall 51 is deformed into an upwardly convex shape. (FIG. 8, reference numeral 101) is not generated. In the case where the peripheral edge 54 of the partition wall portion 51 is connected to the peripheral surface of the outer peripheral portion 53 below the flange 52 as in the inner lid 5 c shown here, the top surface portion 310 is the peripheral portion of the central region 12.
  • the thickness of the top surface portion 310 differs greatly between the central region 12 and the peripheral region 13 that abuts against the upper surface of the flange 52. Therefore, when the top surface portion 310 is manufactured as an integrally molded product by injection molding, if the molding conditions are not strictly controlled, the so-called “sinking” in which the thickness of the portion where the thickness changes is reduced, and the aesthetic appearance may be impaired. There is sex. Therefore, ideally, the peripheral edge 54 of the partition wall portion 51 is desirably connected to the outer peripheral portion 53 at the upper end position of the flange 52.
  • the inner surface shape of the central region is not limited to a simple spherical shell-shaped dome shape, and a flat cylindrical dome shape that opens downward is also conceivable. Moreover, it is good also as a dome shape with an unevenness
  • the partition wall is made of a very soft material, even if it is deformed to the maximum extent, the surface shape of the upper surface cannot follow the uneven shape, and generally has a dome shape. Therefore, if the surface area of the central region facing the partition wall portion is equal to or less than the initial surface area of the partition wall portion, the diameter reduction of the outer peripheral portion of the inner lid due to the action shown in FIG. 8 can be prevented. If the inner surface of the central region has a shape that crosses the inner surface of the spherical shell, the surface area of the central region facing the partition wall is the area of the lower end surface of the beam and the sphere exposed between adjacent beams. If the total surface area is equal to or less than the initial surface area of the partition wall portion, the diameter of the outer peripheral portion can be prevented from being reduced.
  • the inner surface of the central region is shaped so that the surface area ratio before and after the deformation of the partition wall is 1 or less, in principle, it is difficult to generate a force to reduce the outer diameter of the inner lid.
  • the central region has a flat cylindrical dome shape that opens downward, there is a difference in height between the peripheral edge of the partition wall and the peripheral edge of the central region, and the outer peripheral portion is similar to the operation shown in FIG.
  • the force in the direction of reducing the diameter cannot be ignored. Therefore, it is better to deform the partition wall so that it smoothly continues from the periphery to the inner surface shape of the central region. That is, it is desirable that the partition wall and the central region have a dome shape that smoothly goes from the center of the plane toward the periphery.
  • a hole communicating with the central region may be formed in the top surface portion as a vent.
  • a vent when a vent is made into a hole, it can be said that it is more preferable to use a groove formed radially outward from the central region as a vent because there is a possibility that the hole is closed by hand when the cap is attached.
  • the vent is not limited to the outer lid, but may be formed in the inner lid.
  • a groove extending radially outward can be formed on the upper surface of the flange portion, and the groove can be used as a vent.
  • vents can be formed on both the outer lid and the upper surface of the flange portion.
  • the structure for engaging the cap with the container main body is not limited to the above embodiment, and for example, a screw cap method or the like is also conceivable.
  • the outer lid does not need to be configured as a cylindrical cap or detachable, and may be a hinged outer lid such as a compact container.
  • the difference in height between the peripheral position of the partition wall portion when the cap is closed and the upper end of the central region is equal to or lower than the difference in height between the lower end of the partition wall portion of the inner lid in the initial state and the peripheral position of the partition wall portion.
  • the surface area of the central region may be equal to or less than the surface area of the upper surface of the partition wall in the initial state.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
PCT/JP2015/085876 2015-12-22 2015-12-22 中蓋付き密閉容器 WO2017109866A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PCT/JP2015/085876 WO2017109866A1 (ja) 2015-12-22 2015-12-22 中蓋付き密閉容器
JP2017557561A JP6622328B2 (ja) 2015-12-22 2015-12-22 中蓋付き密閉容器
EP15911304.2A EP3395714A4 (de) 2015-12-22 2015-12-22 Geschlossener behälter mit einem innendeckel
KR1020187016279A KR20180098244A (ko) 2015-12-22 2015-12-22 속뚜껑이 있는 밀폐용기
US16/060,419 US20190002167A1 (en) 2015-12-22 2015-12-22 Sealed container with inner lid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/085876 WO2017109866A1 (ja) 2015-12-22 2015-12-22 中蓋付き密閉容器

Publications (1)

Publication Number Publication Date
WO2017109866A1 true WO2017109866A1 (ja) 2017-06-29

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PCT/JP2015/085876 WO2017109866A1 (ja) 2015-12-22 2015-12-22 中蓋付き密閉容器

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Country Link
US (1) US20190002167A1 (de)
EP (1) EP3395714A4 (de)
JP (1) JP6622328B2 (de)
KR (1) KR20180098244A (de)
WO (1) WO2017109866A1 (de)

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JP2020019521A (ja) * 2018-07-31 2020-02-06 株式会社吉野工業所 ヒンジキャップ
JP7451050B2 (ja) 2020-09-30 2024-03-18 株式会社吉野工業所 コンパクト容器

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US5458252A (en) * 1994-06-03 1995-10-17 American Precision Plastics Corporation Invertible, pressure-responsive sealing cap
JPH09285336A (ja) 1996-04-25 1997-11-04 Yoshino Kogyosho Co Ltd 気密コンパクト容器
JP2006036358A (ja) * 2004-07-28 2006-02-09 Arimichi Hayashi 異常圧力上昇防止機能付きペットボトルキャップ用パッキン
US20080083693A1 (en) * 2006-10-05 2008-04-10 Gottlieb Norman J Pressure equalization cap and bottle for use therewith
CH699800A1 (de) * 2008-10-29 2010-04-30 Alpla Werke Verschluss für Kunststoffbehälter, insbesondere Kunststoffflaschen.
JP2012086861A (ja) * 2010-10-19 2012-05-10 Yoshida Industry Co Ltd キャップ付き容器
US20120205339A1 (en) * 2011-02-10 2012-08-16 Graham Packaging Company, L.P. Pressure-motion compensating diaphragm for containers
JP2012158339A (ja) * 2011-01-28 2012-08-23 Yoshino Kogyosho Co Ltd キャップ
WO2014135552A1 (en) * 2013-03-06 2014-09-12 Nestec S.A. Container for aseptic content

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US8777033B2 (en) * 2010-10-29 2014-07-15 Graham Packaging Company, L.P. Plastic container with reinforced base and closure and system and method of making same
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JPS539960U (de) * 1976-02-13 1978-01-27
US5458252A (en) * 1994-06-03 1995-10-17 American Precision Plastics Corporation Invertible, pressure-responsive sealing cap
JPH09285336A (ja) 1996-04-25 1997-11-04 Yoshino Kogyosho Co Ltd 気密コンパクト容器
JP2006036358A (ja) * 2004-07-28 2006-02-09 Arimichi Hayashi 異常圧力上昇防止機能付きペットボトルキャップ用パッキン
US20080083693A1 (en) * 2006-10-05 2008-04-10 Gottlieb Norman J Pressure equalization cap and bottle for use therewith
CH699800A1 (de) * 2008-10-29 2010-04-30 Alpla Werke Verschluss für Kunststoffbehälter, insbesondere Kunststoffflaschen.
JP2012086861A (ja) * 2010-10-19 2012-05-10 Yoshida Industry Co Ltd キャップ付き容器
JP2012158339A (ja) * 2011-01-28 2012-08-23 Yoshino Kogyosho Co Ltd キャップ
US20120205339A1 (en) * 2011-02-10 2012-08-16 Graham Packaging Company, L.P. Pressure-motion compensating diaphragm for containers
WO2014135552A1 (en) * 2013-03-06 2014-09-12 Nestec S.A. Container for aseptic content

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020019521A (ja) * 2018-07-31 2020-02-06 株式会社吉野工業所 ヒンジキャップ
JP7010788B2 (ja) 2018-07-31 2022-01-26 株式会社吉野工業所 ヒンジキャップ
JP7451050B2 (ja) 2020-09-30 2024-03-18 株式会社吉野工業所 コンパクト容器

Also Published As

Publication number Publication date
KR20180098244A (ko) 2018-09-03
JP6622328B2 (ja) 2019-12-18
JPWO2017109866A1 (ja) 2018-10-11
EP3395714A1 (de) 2018-10-31
EP3395714A4 (de) 2019-09-18
US20190002167A1 (en) 2019-01-03

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