WO2024253403A1 - Couvercle d'étanchéité à utilité améliorée et récipient étanche le comprenant - Google Patents

Couvercle d'étanchéité à utilité améliorée et récipient étanche le comprenant Download PDF

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Publication number
WO2024253403A1
WO2024253403A1 PCT/KR2024/007614 KR2024007614W WO2024253403A1 WO 2024253403 A1 WO2024253403 A1 WO 2024253403A1 KR 2024007614 W KR2024007614 W KR 2024007614W WO 2024253403 A1 WO2024253403 A1 WO 2024253403A1
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WO
WIPO (PCT)
Prior art keywords
container
cover
frame
locking wing
sealing
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/KR2024/007614
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English (en)
Korean (ko)
Inventor
윤종병
구현우
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Withclean Co Ltd
Original Assignee
Withclean Co Ltd
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 KR1020230072736A external-priority patent/KR20230092837A/ko
Application filed by Withclean Co Ltd filed Critical Withclean Co Ltd
Publication of WO2024253403A1 publication Critical patent/WO2024253403A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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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
    • B65D1/00—Rigid or semi-rigid 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 or by deep-drawing operations performed on sheet material
    • B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing 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
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
    • B65D45/04—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface comprising U-shaped or bifurcated members coacting with containers these members remaining connected with the closure and with the container when the container is open, e.g. pivoted bails
    • B65D45/06—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface comprising U-shaped or bifurcated members coacting with containers these members remaining connected with the closure and with the container when the container is open, e.g. pivoted bails associated with toggle levers, e.g. swing stopper arrangements
    • 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
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
    • B65D45/16—Clips, hooks, or clamps which are removable, or which remain connected either with the closure or with the container when the container is open, e.g. C-shaped
    • B65D45/18—Clips, hooks, or clamps which are removable, or which remain connected either with the closure or with the container when the container is open, e.g. C-shaped of snap-over type
    • 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
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/02—Collars or rings

Definitions

  • the present invention relates to a sealed container, and more particularly, to a sealed cover having improved usability and a sealed container having the same.
  • Airtight containers are widely used to hygienically store food and extend the storage period. Airtight containers seal the inside of the container airtightly to block airflow, thereby allowing the contents contained in the container to be preserved for a longer period of time.
  • a locking wing is provided on the cover, a catcher is formed on the inside of the locking wing, and a catcher groove is formed on the rim of the container. The user lowers the locking wing so that the catcher on the cover is inserted into the catcher groove on the rim of the container, thereby sealing the container.
  • the catches and catch grooves have special shapes, which causes some disadvantages.
  • the cover can only be used with corresponding containers of the same set, and the sealing function cannot be used with containers having corresponding catch grooves even if they are the same size as the cover.
  • the catch grooves are generally formed in small sizes and in locations that are difficult to access, if foreign substances enter the catch grooves of the container, it is difficult to clean them, which can adversely affect the appearance and hygiene of the container.
  • the catches and catch grooves of existing sealed containers must be designed with an elaborate shape and manufactured precisely to perform their intended function, and if the manufacturing tolerances of the cover and the container are different, the catches and catch grooves may not fit together properly.
  • sealed container products that include a container made of glass and a cover made of plastic are commonly found on the market.
  • the glass material of the container not only allows the user to check the contents inside the container, but also gives a clean and neat image.
  • products molded from glass generally have significantly larger manufacturing tolerances than products molded from plastic. Therefore, if the container and cover are manufactured from different materials, the defect rate may significantly increase, the yield may decrease, and the manufacturing cost may increase.
  • the locking blades are operated while the cover is placed on the rim of the container, so some of the rim of the cover has a cut-out shape to provide space for the locking blades. This can cause packing, etc. mounted on the cover to be exposed to the outside, and can also act as a factor in weakening the structural strength of the cover.
  • the present invention has been made to solve the above-described problems, and one aspect of the present invention is to provide a sealing cover that can be combined with container frames of various shapes and a sealing container having the same.
  • Another aspect of the present invention is to provide a sealing cover and a sealing container having increased structural strength and capable of sealing the container with a small number of locking blades.
  • Another aspect of the present invention is to provide a sealing cover and a sealing container that can be applied to a glass container without increasing the defect rate.
  • the sealing cover is a sealing cover coupled to a container rim surrounding an opening of a container, and may include: a cover body configured to cover the opening; a cover rim extending downward from an edge of the cover body; a locking wing rotatably coupled to the cover rim by a hinge positioned lower than a lower portion of the container rim; and a supporting protrusion formed on the inner side of the locking wing.
  • the sealing cover according to the present invention may have one or more of the following embodiments.
  • the sealing cover when the locking wing is in the first position, the sealing cover can be separated from the container, and when the locking wing is in the second position, the sealing cover can be fastened to the container, and the locking wing can be configured to be rotatable within a range including the first position and the second position, and the supporting protrusion can be extended in a direction away from the hinge, wherein a length by which the supporting protrusion extends is set to be greater than a distance between the hinge and the side wall of the container based on a horizontal direction at a height corresponding to the hinge, so that when the locking wing is rotated from the first position to the second position, elastic deformation occurs in at least one of the hinge, the locking wing, and the supporting protrusion.
  • the inner surface of the supporting protrusion is parallel to the side wall below the container rim, the distal end of the supporting protrusion contacts the lower portion of the container rim, and the inner surface of the supporting protrusion can make surface contact with the side wall.
  • the above locking wing may be coupled to the cover frame by a pair of hinges spaced apart from each other, and a clearance slit may be formed between the pair of hinges to separate the locking wing from the cover frame.
  • the clearance slit may be formed at a position adjacent to the supporting protrusion.
  • the above cover frame may extend below the lower portion of the container frame.
  • a concave portion may be formed on the inner side of the cover frame into which the support protrusion may be inserted.
  • the distance between the inner surface of a part of the cover frame located on one side of the container and the inner surface of another part of the cover frame located on the other side of the container may be set to be greater than the distance between the outer surface of a part of the container frame located on one side of the container and the outer surface of another part of the container frame located on the other side of the container.
  • the cover body may include a sealing portion that protrudes upward and forms a packing groove on its lower side, and an imaginary line extending downward in a vertical direction from the inner wall of the packing groove may intersect the upper surface of the container rim such that the inner wall of the packing groove may be positioned above the container rim.
  • a stopper surface may be formed on the lower surface of the cover body on the inner side of the inner wall of the packing groove and is recessed upward compared to the lower surface of the remaining portion of the cover body.
  • the length of the support protrusion extending inwardly from the locking wing is set to be greater than the distance from the locking wing to the side wall of the container based on the extension direction of the support protrusion, so that an overlap can be formed between the support protrusion and the side wall.
  • the hinge may be formed on the outer side of the cover frame, a concave portion may be formed on the inner side of the cover frame into which the support protrusion may be inserted, and the inner side of the cover frame within the concave portion may include a contact surface that contacts the support protrusion and a non-contact surface that does not contact the support protrusion, and the non-contact surface may be located on the inner side of the contact surface.
  • An inwardly protruding catch may be formed on the upper portion of the cover frame, and the cover body may be coupled to the cover frame when a part of the cover body comes into contact with the catch, and the cover body may form a part of a packing groove for coupling the packing, and the cover frame may form another part of the packing groove.
  • the packing groove for coupling the packing may be formed in the cover body or the cover frame.
  • Another aspect of the present invention provides a sealed container comprising a sealed cover having improved usability.
  • the container frame may be formed at a bent angle relative to the side wall of the container, or may protrude outwardly while drawing a curve from the side wall of the container, or may have a groove formed therein configured such that the end of the support protrusion is inserted therein.
  • the side wall of the container may include a contact rib formed at a position corresponding to the support protrusion, and the support protrusion may contact the contact rib during the process of the locking wing moving from the first position to the second position.
  • the cover rim can completely surround all parts of the container rim. This has the advantage of significantly reducing the possibility that a part of the packing will be exposed to the outside, thereby releasing the seal or introducing foreign substances.
  • the cover frame can maintain strong structural strength, and unlike a conventional airtight container, the airtight cover can be firmly connected even if the locking wings are provided only on two opposite sides.
  • a hinge for rotation of the locking wing can be formed at the bottom of the cover frame, there is an advantage in that the degree to which the locking wing protrudes outward compared to the outer surface of the cover frame can be significantly reduced. According to one embodiment of the present invention, it is possible to prevent the locking wing from protruding further outward than the outer surface of the cover frame in the horizontal direction.
  • sealing cover according to one embodiment of the present invention has the advantage of being able to be combined with containers having a wider range of dimensions and being applicable to various containers in addition to containers manufactured as the same set.
  • the cover body and the cover frame are manufactured separately and configured to be assembled together, which enables disassembly of the sealed cover, making it easier to clean, etc., and makes it easier to use different materials for the cover body and the cover frame, thereby providing the elastic deformation required for operation of the locking wing while allowing the cover body to have high heat resistance.
  • FIG. 1 is a perspective view exemplarily showing a sealed container according to one embodiment of the present invention.
  • Figure 2 is a side view showing the sealed container illustrated in Figure 1.
  • FIG. 3 is a perspective view showing a portion of a sealing cover according to one embodiment of the present invention.
  • Figure 4 is a cross-sectional view showing a part of the sealed container illustrated in Figure 1.
  • Figure 5 is a cross-sectional view showing a part of the sealed container illustrated in Figure 1.
  • FIG. 6 is a cross-sectional view exemplarily showing a portion of a sealed container according to one embodiment of the present invention.
  • FIG. 7 is a cross-sectional view exemplarily showing a portion of a sealed container according to one embodiment of the present invention.
  • FIG. 8 is a cross-sectional view exemplarily showing a portion of a sealed container according to one embodiment of the present invention.
  • FIG. 9 is a cross-sectional view exemplarily showing a portion of a sealed container according to one embodiment of the present invention.
  • FIG. 10 is a cross-sectional view exemplarily showing a portion of a sealed container according to one embodiment of the present invention.
  • Fig. 11 is a cross-sectional view exemplarily showing a part of a sealed container according to one embodiment of the present invention.
  • first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only to distinguish one component from another.
  • the expressions “inner,” “outer,” “upper,” and “lower” are used in this specification.
  • “inner” refers to the side closer to the inside of the sealed container (1000), and “outer” refers to the side farther from the inside of the sealed container (1000).
  • “upper” refers to the direction in which the container (100) is opened, and “lower” refers to the opposite direction.
  • the upper direction mentioned in the specification may not match the actual upper direction.
  • FIG. 1 is a perspective view illustrating a sealed container (1000) according to an embodiment of the present invention
  • FIG. 2 is a side view illustrating the sealed container (1000) illustrated in FIG. 1.
  • FIG. 3 is a perspective view illustrating a portion of a sealed cover (200) according to an embodiment of the present invention.
  • FIGS. 4 and 5 are cross-sectional views illustrating a portion of the sealed container (1000) illustrated in FIG. 1.
  • FIG. 6 is a cross-sectional view illustrating a portion of a sealed container according to an embodiment of the present invention.
  • a sealed container (1000) may basically include a container (100) and a sealed cover (200).
  • the container (100) may correspond to a portion that forms an internal space (105) on the inside thereof to contain contents
  • the sealed cover (200) may correspond to a portion that is coupled to a container rim (150) formed on the upper portion of the container (100) to seal the internal space (105).
  • the container (100) may include a bottom surface (110) and a side wall (120) to form an internal space (105) on its inside.
  • the container (100) may be manufactured using a wide variety of materials such as glass, synthetic resin, and metal.
  • the side wall (120) of the container (100) may extend upward from the bottom surface (110), and may extend vertically in the up-down direction or may extend outward at an inclined angle.
  • a container rim (150) may be formed on the upper end of the side wall (120).
  • the container rim (150) forms an open upper portion of the internal space (105), that is, a portion surrounding the opening of the container (100).
  • the container rim (150) may have a shape that slightly protrudes outward.
  • FIG. 6 depicts various shapes of a container rim (150) that a container (100) can take in a sealed container (1000) according to one embodiment of the present invention.
  • a container rim (150a) may be formed to form a bent angle with respect to a side wall (120) of the container (100), as in (b) of FIG. 6, a container rim (150b) may protrude outwardly while drawing a curve from the side wall (120) of the container (100), and as in (c) of FIG. 6, a groove may be formed on the lower side of the container rim (150c) into which a distal end of a support protrusion (350) can be inserted.
  • the container rim (150) may have various other shapes as long as the support protrusion (350) can contact and apply a resistive force in the up-down direction.
  • the sealing cover (200) can be coupled to the container frame (150) formed on the upper part of the container (100) to seal the internal space (105).
  • the sealing cover (200) can be manufactured using a synthetic resin such as polypropylene (PP), and in particular, a material that provides high strength while allowing slight elastic deformation can be used around the cover frame (250) and the locking wing (300).
  • the sealing cover (200) according to one embodiment of the present invention can largely include a cover body (210), a sealing portion (220), a packing (240), a cover frame (250), a hinge (260), a locking wing (300), and a support protrusion (350).
  • the cover body (210) is a main part of the sealing cover (200) and may be configured to cover the opening of the container (100).
  • the cover body (210) may further be provided with components for joining the sealing cover (200).
  • the sealing portion (220) may be formed along the edge of the cover body (210) so as to be positioned corresponding to the container rim (150) as a part of the cover body (210).
  • the sealing portion (220) may protrude upwardly compared to the cover body (210) and form a packing groove (230) for inserting a packing (240) on its lower side.
  • the upper surface of the sealing portion (220) may be formed to have a shape that is curved and protrudes upwardly corresponding to the lower portion of the container (100), which serves as a design element of the sealing cover (200) and enables easy covering of a sealing cover (200) of the same size.
  • the packing groove (230) and the packing (240) may be omitted, and the sealing portion (220) itself may perform the role of the packing (240).
  • the lower portion of the sealing portion (220) may be configured to seal against the container rim (150) to provide sealing performance.
  • the shape of the upper portion of the sealing portion (220) and the degree to which the sealing portion (220) protrudes upward may vary.
  • the packing (240) can be inserted into the packing groove (230) to provide high sealing performance between the container (100) and the sealing cover (200).
  • the packing (240) being inserted into the packing groove (230) includes a case where the packing (240) is integrally formed inside the sealing cover (200) as a part thereof.
  • the packing (240) can be made of a material such as rubber or silicone.
  • the packing (240) is also naturally positioned corresponding to the container rim (150).
  • the sealed container (200) can be pressed toward the container (100), and the packing (240) can be pressed against the container rim (150).
  • the packing (240) can be elastically deformed due to the force applied by the sealing cover (200), and can contact the container rim (150) without any gap to block the communication of air. That is, the lower part of the packing (240) can be pressed against the upper surface of the container rim (150) and be in close contact with it.
  • the cover frame (250) may extend downward from the edge of the cover body (210).
  • the cover frame (250) may extend downward over the entire edge of the cover body (210) and may extend lower than the lower portion of the container frame (150) to completely surround the outer side of the container frame (150).
  • the cover frame (250) may be designed so that its inner surface corresponds to the outer surface of the container frame (150), but as described below, the cover frame (250) may also be designed so that it is further outside than the container frame (150).
  • the cover frame (250) may extend downward from the sealing portion (220).
  • the sealing portion (220) may form a packing groove (230) at its lower portion and protrude upward, and the cover frame (250) may extend downward from the edge of the sealing portion (220) and form a part of the packing groove (230).
  • the hinge (260) is a portion where the locking wing (300) is connected to the cover frame (250) and allows the locking wing (300) to rotate relative to the cover frame (250).
  • the hinge (260) may be implemented by forming it with a thin thickness that allows the rotation of the locking wing (300).
  • the cover frame (250) and the locking wing (300) are formed of the same material, the cover frame (250), the hinge (260), and the locking wing (300) may all be manufactured as a single integral member, and only the hinge (260) portion may be formed with a thin thickness.
  • the hinge (260) may be configured to be coupled to at least one of the cover frame (250) and the locking wing (300).
  • the hinge (260) may be made as a part of one of the cover frame (250) and the locking wing (300) and joined to the other, or may be made independently of both the cover frame (250) and the locking wing (300) and joined to both of them.
  • the hinge (260) may be positioned lower than the lower portion of the container frame (150). That is, the locking wing (300) may rotate relative to the cover frame (250) about a rotation axis positioned lower than the lower portion of the container frame (150).
  • a sealing cover (200) may include a pair of hinges (260) spaced apart from each other.
  • a clearance slit (270) may be formed between the hinges (260).
  • the clearance slit (270) may be formed by separating the locking wing (300) from the cover frame (250).
  • the hinge (260) may be formed at the bottom of the cover frame (250), and may also be formed on the outer side of the bottom as illustrated in FIGS. 2 and 5.
  • the locking wing (300) can be coupled to the cover frame (250) by a hinge (260) and can correspond to a portion that a user holds and manipulates.
  • the locking wing (300) can be configured to rotate about the hinge (260).
  • the locking wing (300) can be configured to rotate within a range including a first position and a second position.
  • FIG. 2 (b) and FIG. 4 depict a state in which the locking wing (300) is in the first position
  • FIG. 2 (a) and FIG. 5 depict a state in which the locking wing (300) is in the second position.
  • the sealing cover (200) may have a square shape, and the locking wing (300) may be provided on two opposite sides of the square.
  • the support protrusion (350) can be formed on the inside of the locking wing (300) and can serve to pull the sealing cover (200) down by pressing the container rim (150) when the sealing cover (200) is coupled to the container (100).
  • the support protrusion (350) may extend in a direction away from the hinge (260).
  • the locking wing (300) is connected to the cover frame (250) by a pair of hinges (260), and the support protrusion (350) may extend from the inside of the locking wing (300) at a portion adjacent to a position where a clearance slit (270) is formed between the pair of hinges (260).
  • a concave portion (280) may be formed at a portion of the cover frame (250) adjacent to the clearance slit (270).
  • the concave portion (280) may be configured to receive the support protrusion (350) as a portion having a shape corresponding to a portion of the inner surface of the cover frame (250) being concavely removed.
  • the length by which the support protrusion (350) is extended can be set to be greater than the distance between the hinge (260) and the side wall (120) of the container (100) when based on the horizontal direction at a height corresponding to the hinge (260). Accordingly, when the locking wing (300) is rotated from the first position to the second position, elastic deformation occurs in the hinge (260), the locking wing (300), and the support protrusion (350), so that the support protrusion (350) can be inserted into a position below the container rim (150) while going beyond the overlap with the side wall (120) of the container (100).
  • a hinge (260) connecting the lock wing (300) to the cover frame (250) is not formed, but a free slit (270) is formed, so that when the hinge (260), the lock wing (300), and the support projection (350) are formed of a material such as polypropylene (PP), the required elastic deformation can occur without difficulty.
  • PP polypropylene
  • the inner surface of the support protrusion (350) can be formed parallel to the side wall (120) below the container rim (150) when the locking wing (300) is in the second position as in FIG. 4. Therefore, when the locking wing (300) is rotated to the second position, the distal end of the support protrusion (350) can contact the lower portion of the container rim (150) and the inner surface of the support protrusion (350) can make surface contact with the side wall (120). At this time, the support protrusion (350) can be inserted into the concave portion (280).
  • the supporting protrusion (350) can extend from the lower portion to the upper portion to contact the container rim (150). Since the supporting protrusion (350) presses the lower portion of the container rim (150), the entire sealing cover (200) is pulled downward, which causes the packing (240) to be pressed against the upper surface of the container rim (150), thereby sealing the internal space (105) of the container (100). That is, the lower portion of the container rim (150) serves to fix the supporting protrusion (350), and the upper surface of the container rim (150) serves to be in close contact with the packing (240).
  • the sealing cover (200) according to one embodiment of the present invention presented above and the sealing container (1000) equipped with the same provide various advantages. Representatively, since the hinge (260) that serves as the rotation axis of the locking wing (300) is located below the container rim (150), the cover rim (250) can completely surround all parts of the container rim (150). This can significantly reduce the possibility that a part of the packing (240) is exposed to the outside, thereby releasing the seal or introducing foreign substances.
  • the cover frame (250) can maintain strong structural strength.
  • a catch and/or a locking wing must be provided on each side of the cover to ensure stable connection of the cover, but in the airtight cover (200) according to an embodiment of the present invention, since the cover frame (250) can effectively transmit the force applied to the cover, as shown in FIG. 2, even if the locking wing (300) is provided only on two opposing sides, the airtight cover (200) can be firmly connected.
  • a hinge (260) for rotation of the locking wing (300) can be formed at the bottom of the cover frame (250), the extent to which the locking wing (300) protrudes outward compared to the outer surface of the cover frame (250) can be significantly reduced, and it is also possible to prevent the locking wing (300) from protruding further outward than the outer surface of the cover frame (250) based on the horizontal direction.
  • the sealing cover (200) according to the embodiment of the present invention described hereinafter has many commonalities with the sealing cover (200) illustrated in FIGS. 1 to 6, and the following description will focus on the differences between the sealing covers (200) according to each embodiment. It goes without saying that features described with respect to a specific embodiment can be applied to other embodiments.
  • locking wings (300) may be provided on both sides of the sealed container (1000), and the supporting protrusions (350) formed on each locking wing (300) may contact the container rim (150) from below. Since the supporting protrusions (350) and the packing (240) contact the container rim (150) from below and above, respectively, and the supporting protrusions (350) on both sides of the sealed container (1000) contact the container (100) from both sides, the cover rim (250) of the sealed cover (200) does not necessarily have to contact the container rim (150).
  • the cover frame (252) of the sealed cover (200) illustrated in FIG. 7 may have a structure in which its inner surface is retracted outward from the container frame (150).
  • the distance between the inner surface of a part of the cover frame (250) located on one side of the container (100) and the inner surface of another part of the cover frame (250) located on the other side of the container (100) may be set to be greater than the distance between the outer surface of a part of the container frame (150) located on one side of the container (100) and the outer surface of another part of the container frame (150) located on the other side of the container (100).
  • the distance between the inner surfaces of the cover frames (250) on both sides may be set to be greater than the distance between the outer surfaces of the container frames (150) on both sides.
  • the container portion of the airtight container is made of glass material that provides a clean appearance and has high heat resistance.
  • the manufacturing error is larger than when other materials are used, and therefore, there is a problem that the defect rate is high when a container with a catch groove that can be used with a sealing cover according to the prior art is made of glass.
  • a sealing cover (200) and a sealing container (1000) can solve this problem, as the support protrusion (350) of the sealing cover (200) does not require a corresponding engaging groove and only requires a container rim (150) protruding outward, so that a manufacturing error of a container (100) made of glass or other materials can be accommodated to a large extent.
  • the cover frame (252) whose inner surface is recessed outwardly, as in FIG. 7.
  • the packing (240) of the sealing cover (200) is still formed at a position corresponding to the container frame (150), and the inner surface of the cover frame (252) is recessed further outward than the designed position corresponding to the outer side of the container frame (150). Therefore, even if the container frame (150) protrudes further outward due to a manufacturing error, the sealing cover (200) can be applied.
  • the packing (240) of the cover frame (252) can at least partially contact the upper surface of the container frame (150) and provide a sealing function.
  • the sealing cover (200) and the sealing container (1000) do not require the cover frame (250, 252) to contact the container frame (150), so there is an advantage in that the sealing cover (200) can be combined with a container (100) having a wider range of dimensions.
  • the cover body (210) and the cover frame (250) are formed in a structure in which they are joined to each other and assembled.
  • This structure is possible because, in the sealed cover (200) according to one embodiment of the present invention, there is no need to form a cut portion for a locking wing (300) or the like in the cover frame (250), and since the cover frame (250) can maintain a sufficient length in the vertical direction, it can maintain high strength on its own.
  • the sealing portion (222) of the cover body (210) reaches only to a predetermined height, and a catch (254) protruding inward is formed on the upper portion of the cover frame (250).
  • the manufacturer can lower the cover frame (250) relatively to the cover body (210) from above the cover body (210) so that the catch (254) is settled on the sealing portion (222).
  • the cover body (210) and the cover frame (250) can be joined to each other to form a packing groove (230).
  • the sealing portion (222) forms the upper surface and inner wall of the packing groove (230), and the inner surface of the cover frame (250) forms the outer wall of the packing groove (230).
  • the cover body (210) and cover frame (250) configured in this manner may further include components such as protrusions and grooves to strengthen the bond between them, or may be bonded only by press-fitting without separate components.
  • the user can separate the cover body (210), cover frame (250), and packing (240) as needed for cleaning the sealing cover (200), etc.
  • the cover body (210) and the cover frame (250) can be formed of different materials, respectively.
  • the cover frame (250) and the locking wing (300), support protrusion (350), etc. connected thereto can be formed of a material such as polypropylene (PP) that can provide elastic deformation required for operation of the locking wing (300), and the cover body (210) can be formed of a heat-resistant material such as PCT (Polycyclohexylenedimethylene terephthalate) or PCTG (PCT glycol-modified).
  • PP polypropylene
  • PCT Polycyclohexylenedimethylene terephthalate
  • PCTG PCT glycol-modified
  • the cover body (210) formed of a heat-resistant material covers the opening of the container (100), thereby preventing deformation due to heat within the internal space (105). Even when a lot of heat is emitted from the internal space (105), most of the heat is emitted to the outside from the upper surface of the cover body (210) by convection, and the amount of heat transferred to the cover frame (250) by conduction is so small that it does not cause deformation of the cover frame (250).
  • the cover body (210) and the cover frame (252) are formed in a structure in which they are combined and assembled with each other.
  • a protrusion (226) protruding outward is formed on the outer side of the sealing portion (220) of the cover body (210), and a step is formed on the protrusion (226), and a catch (256) protruding inward is formed on the upper part of the cover frame (220).
  • the packing groove (230) for mounting the packing (240) is formed on the lower surface of the sealing portion (220) on the inner side of the protrusion (226) of the cover body (210).
  • the manufacturer can lower the cover frame (252) relative to the cover body (210) from above the cover body (210) so that the catch (256) is settled on the step above the protrusion (226). Since the packing groove (230) is formed in the cover body (210), the protrusion (226) forming the outer wall of the packing groove (230) can be located further outward than the outer surface of the packing (240).
  • the inner surface of the cover frame (252) is formed at a position corresponding to the outer surface of the protrusion (226), and the packing (240) is formed at a position corresponding to the container frame (150), so that when the cover body (210) and the cover frame (252) are combined with each other, the cover frame (252) has a structure that is retracted outward from the container frame (150) as described with reference to FIG. 7.
  • the packing home (230) is depicted as being formed only in the cover body (210) and the cover body (210) and the cover frame (252) are coupled, but the packing home (230) may be formed on the cover frame (250, 252) side and the cover frame (250, 252) on which the packing home (230) is formed may be coupled to the cover body (210). In this case, the coupling structure of the cover body (210) and the cover frame (250, 252) may be different.
  • the distance between the inner surface of a part of the cover frame (250) located on one side of the container (100) and the inner surface of another part of the cover frame (250) located on the other side of the container (100) may be set to be greater than the distance between the outer surface of a part of the container frame (150) located on one side of the container (100) and the outer surface of another part of the container frame (150) located on the other side of the container (100).
  • this corresponds to the distance between the inner surfaces of the cover frames (250) on both sides of the sealed container (1000) being set to be greater than the distance between the outer surfaces of the container frames (150) on both sides.
  • the embodiment illustrated in FIG. 10 may include all of the sealing portion (220), the packing groove (230), and the cover rim (250) as a whole positioned further outward.
  • the upper portion of the inner surface of the cover rim (250) may form the outer wall (236) of the packing groove (230), and the portion forming the inner wall (234) of the packing groove (230) below the sealing portion (220) may be positioned above the container rim (150) as illustrated. That is, an imaginary line extending downward in a vertical direction from the inner wall (234) may intersect the upper surface of the container rim (150).
  • a stopper surface (290) that is recessed upward compared to the lower surface of the remaining portion of the cover body (210) may be formed on the inner side of the inner wall (234) of the packing groove. Since the inner wall (234) of the packing groove (230) is positioned above the container rim (150), a part of the stopper surface (290) extending from the inner wall (234) is also positioned above the container rim (150).
  • the stopper surface (290) may be recessed to a depth of less than 2 mm compared to the remaining portion of the cover body (210), and in a preferred embodiment, may have a depth difference of less than 0.2 to 0.3 mm.
  • the lower surface of the packing (240) inserted into the packing groove (230) may be positioned at the same height as the lower surface of the remaining portion of the cover body (210).
  • the packing (240) may stick to the container (100) due to the similar properties of the material of the packing (240) and the material of the container (100). In this case, when the sealing cover (200) is separated from the container (100), the packing (240) may break or tear.
  • the embodiment illustrated in Fig. 10 can solve this problem.
  • the sealing cover (200) is fastened to the container (100) with the packing (240) mounted in the packing groove (230), the packing (240) protruding below the stopper surface (290) is in close contact with the container rim (150), thereby sealing the interior of the container (100).
  • the packing (240) is compressed by the pressure, and the stopper surface (290) located above the container rim (150) comes into contact with the container rim (150), and the sealing cover (200) in the area of the contact portion (220) bears the pressure.
  • the degree to which the packing (240) is compressed is limited by the depth difference between the stopper surface (290) and the remaining portion of the cover body (210), and thereafter, the sealing cover (200) in the area of the sealing portion (220) contacts the upper surface of the container rim (150) to protect the packing (240).
  • the present embodiment can prevent the packing (240) from being pressed against the glass container rim (150) by preventing excessive pressure from being applied to the packing (240).
  • the length by which the support protrusion (350) extends inwardly from the locking wing (300) may be set to be greater than the distance from the locking wing (300) to the side wall (120) of the container (100) based on the extension direction of the support protrusion (350). That is, an overlap may be formed between the support protrusion (350) and the side wall (120).
  • the container (100) is represented by a dotted line
  • the area where the container (100) is to be located when the sealing cover (200) is coupled to the container (100) is depicted as being invaded by the support protrusion (350).
  • a hinge (260) may be formed on the outer side of the cover frame (250), and a concave portion (280) may be formed on the inner side of the cover frame (250) at a position adjacent to the support protrusion.
  • the inner side of the cover frame (250) within the concave portion (280) may include a contact surface (282) that contacts the support protrusion (350) and a non-contact surface (284) that does not contact the support protrusion (350).
  • the non-contact surface (284) may be located on the inner side of the contact surface (282).
  • the non-contact surface (284) may have a different angle of inclination from the contact surface (282) or may be formed to be curved and retracted from the support protrusion (350).
  • the end of the support protrusion (350) is pressed against the side wall (120) and the container rim (150).
  • the support protrusion (350) may not be properly fastened or a portion of the cover rim (250) may protrude outward due to the support protrusion (350).
  • the hinge (260) is positioned below the container rim (150) and the hinge (260) has a structure that allows elastic deformation, even if the distal end of the support protrusion (350) is pressed by the side wall (120) and the container rim (150), the locking wing (300) can provide a space where elastic deformation of the hinge (260) is required while pulling the hinge (260) downward.
  • the hinge (260) is formed on both sides of the support protrusion (350), and a clearance slit (270) is formed between the hinges (260) and adjacent to the support protrusion (350), so that the hinge (260) can more effectively achieve the required elastic deformation. In this way, the space shortage due to the overlap of the support protrusions (350) can be accommodated by the elastic deformation of the support protrusions (350) and the locking wing (300) and the elastic deformation of the hinge (260).
  • the contact surface (282) and the non-contact surface (284) inside the concave portion (280) determine the exact position of the contact point (C) where the support protrusion (350) comes into contact with the cover frame (250) in a situation where the distal end of the support protrusion (350) is pressed by the side wall (120) and the container frame (150). That is, referring to FIG. 10, when the distal end of the support protrusion (350) is pressed by the side wall (120) and the container frame (150), a force is applied in the same direction as the left arrow in FIG. 10, and the support protrusion (350) forms a kind of lever and applies a force in the same direction as the right arrow in FIG. 10 to the hinge (260) from the opposite side.
  • the supporting protrusion (350) acts as a lever, the distal end of the supporting protrusion (350) forms a force point, the hinge (260) portion forms an action point, and the contact point (C) where the supporting protrusion (350) comes into contact with the cover frame (250) forms the fulcrum of the lever.
  • the length of the contact surface (282) and the non-contact surface (284) in the concave portion (280) determines the exact position of the contact point (C).
  • the support protrusion (350) rotates clockwise as shown in FIG. 10, and in this case, the contact point (C) that serves as the fulcrum of the lever is located at the innermost point of the contact surface (282), that is, the boundary between the contact surface (282) and the non-contact surface (284).
  • the position of the fulcrum can affect various characteristics of the lever, and taking this into consideration, the position of the point (C), that is, the length of the contact surface (282) and the non-contact surface (284), can be designed. For example, as the location of the contact point (C) gets closer to the point of application (i.e., the hinge (260)), the displacement due to elastic deformation of the hinge (260) may decrease, but the displacement required at the force point (i.e., the distal end of the support projection (350)) may increase.
  • the side wall (120) of the container (100) includes a contact rib (130).
  • the contact rib (130) may protrude outwardly from the remaining portion of the side wall (120) and may extend in the vertical direction.
  • the width of the contact rib (130) is not limited to a specific value.
  • the contact rib (130) may be formed at a position corresponding to the support protrusion (350), so that the support protrusion (350) may contact the contact rib (130) when the locking wing (300) moves from the first position to the second position.
  • the length by which the support protrusion (350) extends may be set to be greater than the distance between the hinge (260) and the side wall (120) of the container (100) so that an overlap may be formed, and this overlap may be formed based on the contact rib (130) which is a part of the side wall (120).
  • the support protrusion (350) may contact the contact rib (130) and preferably may not contact the remaining portion of the side wall (120).
  • the support protrusion (350) may be inserted into a position below the container rim (150) beyond the overlap with the contact rib (130).
  • the supporting protrusion (350) In order for the sealing cover (200) to close the container (100), the supporting protrusion (350) must go beyond the overlap of the side wall (120). Therefore, when the sealed container (1000) according to one embodiment of the present invention is used for a long period of time, the side wall (120) may be subject to wear or scratches due to friction with the supporting protrusion (350).
  • the side wall (120) of the container (100) includes a contact rib (130) according to one embodiment of the present invention, the portion where the supporting protrusion (350) comes into contact can be limited to a relatively narrow contact rib (130), and the occurrence of wear and scratches in the remaining portion of the side wall (120) can be prevented. This has the advantage of allowing the container (100) to maintain a clean and flawless appearance overall for a longer period of time.
  • the sealing cover (200) according to one embodiment of the present invention and the sealing container (1000) having the same provide various advantages. For example, since the support protrusion (350) supports the lower portion of the container rim (150) and the cover rims (250, 252) do not have to contact the container rim (150), the sealing cover (200) has the advantage of being able to be combined with a container (100) having a wider range of dimensions. In particular, since the container (100) can have container rims (150) of various shapes as illustrated in FIG. 6, the sealing cover (200) according to one embodiment of the present invention can be applied to various containers in addition to the container (100) manufactured as the same set, thereby providing greatly improved usability.
  • the above characteristics of the sealing cover (200) and the sealed container (1000) having the same according to one embodiment of the present invention also have the advantage of allowing a significantly wide range of manufacturing tolerances.
  • the structures of the support protrusion (350), the hinge (260), the clearance slit (270), and the concave portion (280) allow the container (100) to accommodate both cases where it is smaller or larger than its basic dimensions. Accordingly, even if the container (100) is manufactured from glass, porcelain, or other materials involving high manufacturing tolerances, the possibility of a defect in which the sealing cover (200) is not fastened is significantly reduced, and the product can be produced with a high yield.
  • the sealing cover (200) according to one embodiment of the present invention and the sealing container (1000) equipped with the same can solve the problem of the packing (240) being pressed against the container (100) by high pressure when the container (100) portion is made of glass.
  • the sealing cover (200) according to one embodiment of the present invention can prevent excessive pressure from being applied to the packing (240), and as a result, has the effect of preventing a defect in which the packing (240) is pressed against the container (100) by excessive pressure and breaks or tears.
  • the sealing cover (200) since the support protrusion (350) supports the sealing cover (200) at the lower part of the container rim (150) and the cover rims (250, 252) do not have to contact the container rim (150), the sealing cover (200) has an advantage in that it can be combined with a container (100) having a wider range of dimensions.
  • the container (100) can have a container rim (150) of various shapes as illustrated in FIG. 6, the sealing cover (200) according to one embodiment of the present invention can be applied to various containers in addition to the container (100) manufactured as the same set, thereby having greatly improved usability.
  • the sealing cover (200) and the sealing container (1000) equipped therewith do not need to cut a space for the locking wing (300) in the cover frame (250, 252), it is possible to separately manufacture the cover body (210) and the cover frame (250, 252) and assemble them together. This makes it possible to disassemble the sealing cover (200), making it easier to clean, and it is also easier to use different materials for the cover body (210) and the cover frame (250, 252), which has the effect of providing the elastic deformation required for the operation of the locking wing (300) while allowing the cover body (210) to have high heat resistance.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

Sont divulgués un couvercle d'étanchéité présentant une utilité améliorée et un récipient étanche le comprenant. Le couvercle d'étanchéité selon un aspect de la présente invention est accouplé à un rebord de récipient entourant une ouverture d'un récipient, et comprend : un corps de couvercle conçu pour recouvrir l'ouverture ; un rebord de couvercle s'étendant vers le bas à partir du bord du corps de couvercle ; une lame de verrouillage qui est accouplée rotative au rebord de couvercle au moyen d'une charnière positionnée au-dessous d'une partie inférieure du rebord de récipient ; et une saillie de support formée à l'intérieur de la lame de verrouillage. Dans le couvercle d'étanchéité et le récipient étanche le comprenant selon un mode de réalisation de la présente invention, la charnière servant d'arbre rotatif de la lame de verrouillage est positionnée au-dessous du rebord de récipient, et ainsi le rebord de couvercle peut entourer complètement chaque partie du rebord de récipient. Ceci présente l'avantage de réduire considérablement le risque de rupture d'étanchéité ou de pénétration de substances étrangères en raison de l'exposition d'une partie de l'emballage à l'extérieur.
PCT/KR2024/007614 2023-06-07 2024-06-04 Couvercle d'étanchéité à utilité améliorée et récipient étanche le comprenant Pending WO2024253403A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020230072736A KR20230092837A (ko) 2023-06-07 2023-06-07 개선된 활용성을 가진 밀폐커버 및 이를 구비한 밀폐용기
KR10-2023-0072736 2023-06-07
KR1020230115531A KR102742718B1 (ko) 2023-06-07 2023-08-31 개선된 활용성을 가진 밀폐커버 및 이를 구비한 밀폐용기
KR10-2023-0115531 2023-08-31

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WO2024253403A1 true WO2024253403A1 (fr) 2024-12-12

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WO (1) WO2024253403A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080230507A1 (en) * 2004-03-31 2008-09-25 Alexander James Peacop Container and Closure Arrangement
KR20130068794A (ko) * 2011-12-16 2013-06-26 (주)그린킵스 식품 보관용기의 락킹레버 결합용 브라켓
KR200468016Y1 (ko) * 2011-03-09 2013-07-17 고려알파라인(주) 식품용기 관찰덮개의 테두리부재 결합구조
KR20220065726A (ko) * 2022-05-03 2022-05-20 위드클린 주식회사 밀폐식 커버 및 밀폐용기
KR20230052258A (ko) * 2023-03-02 2023-04-19 윤종병 밀폐커버 및 이를 구비하는 다회용 저장용기

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080230507A1 (en) * 2004-03-31 2008-09-25 Alexander James Peacop Container and Closure Arrangement
KR200468016Y1 (ko) * 2011-03-09 2013-07-17 고려알파라인(주) 식품용기 관찰덮개의 테두리부재 결합구조
KR20130068794A (ko) * 2011-12-16 2013-06-26 (주)그린킵스 식품 보관용기의 락킹레버 결합용 브라켓
KR20220065726A (ko) * 2022-05-03 2022-05-20 위드클린 주식회사 밀폐식 커버 및 밀폐용기
KR20230052258A (ko) * 2023-03-02 2023-04-19 윤종병 밀폐커버 및 이를 구비하는 다회용 저장용기

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