WO2021226827A1 - 可完全紧扣杯体的纸塑成型杯盖 - Google Patents

可完全紧扣杯体的纸塑成型杯盖 Download PDF

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Publication number
WO2021226827A1
WO2021226827A1 PCT/CN2020/089800 CN2020089800W WO2021226827A1 WO 2021226827 A1 WO2021226827 A1 WO 2021226827A1 CN 2020089800 W CN2020089800 W CN 2020089800W WO 2021226827 A1 WO2021226827 A1 WO 2021226827A1
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WO
WIPO (PCT)
Prior art keywords
convex arc
arc wall
wall
cup body
vertex
Prior art date
Application number
PCT/CN2020/089800
Other languages
English (en)
French (fr)
Inventor
赖宗伸
Original Assignee
常州市诚鑫环保科技有限公司
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 常州市诚鑫环保科技有限公司 filed Critical 常州市诚鑫环保科技有限公司
Priority to PCT/CN2020/089800 priority Critical patent/WO2021226827A1/zh
Priority to BR112022023076A priority patent/BR112022023076A2/pt
Priority to MX2022014190A priority patent/MX2022014190A/es
Priority to KR1020227039175A priority patent/KR20220160698A/ko
Priority to JP2023512258A priority patent/JP2023525409A/ja
Priority to EP20935632.8A priority patent/EP4151552A4/en
Priority to US17/924,976 priority patent/US20230192363A1/en
Priority to CA3177660A priority patent/CA3177660A1/en
Priority to AU2020447313A priority patent/AU2020447313A1/en
Publication of WO2021226827A1 publication Critical patent/WO2021226827A1/zh

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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
    • 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
    • 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
    • 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
    • B65D43/0208—Removable lids or covers without integral tamper element secured by snapping over beads or projections on both the inside and the outside of the mouth of the container
    • 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
    • B65D43/06—Removable lids or covers having a peripheral channel embracing the rim of the container
    • 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
    • B65D43/08—Removable lids or covers having a peripheral flange fitting over the rim of the container
    • 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
    • B65D2543/00259—Materials used
    • B65D2543/00268—Paper
    • 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
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00314—Combination, e.g. laminates, several different materials
    • 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
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • 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
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • 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
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • 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
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00555—Contact between the container and the lid on the inside or the outside of the container on both the inside and the outside
    • 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
    • B65D2543/00638—Rolled edge
    • 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
    • B65D2543/00675—Periphery concerned
    • B65D2543/00685—Totality
    • 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
    • B65D2543/00796—Totality
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging

Definitions

  • the invention relates to the field of cup lids, in particular to a paper-plastic molded cup lid that can completely fasten the cup body.
  • paper-plastic products molded from pulp fiber or plant fiber materials have the advantage of being easy to recycle, remanufacturing and reusing, because they are quickly used by all walks of life. And accepted and adopted by the general public, all kinds of paper-plastic products will gradually replace all kinds of plastic products in daily life, whether it is bowls, plates, cup lids, straws, packaging materials, shock absorbers and other paper-plastic products will gradually replace Plastic products, paper-plastic products, because the material changes from plastic to paper-plastic, in the process of paper-plastic molding, it is not as well-known in the industry as plastic products and easily molded into various shapes, so there are still many products that are formed during or after molding.
  • cup lids can not achieve the effect or function of plastic products, but the paper and plastic industry has just started and there is still a lot of room for progress and development. As one of the most common consumables in daily life, the requirements for the use of cup lids are particularly rigorous. In addition to food-grade materials and sanitary conditions, the cup lid as the container body requires better sealing and greater safety. sex.
  • the conventional paper-plastic cup lid 3 is far less sealed than plastic cup lids due to the limitation of molding conditions and materials.
  • the conventional paper-plastic cup lid 3 will have a negative angle during molding.
  • the concave groove, the inwardly inclined inclined wall or various different geometric methods are used as the clamping part 31 of the cup body 4.
  • the clamping part 31 of the conventional paper-plastic cup lid 3 usually only considers the fastening method without considering its strength. If the strength is considered, it cannot be achieved.
  • the best fastening strength makes the conventional paper-plastic cup lid 3 easy to deform due to the influence of the outer hoop 41 of the cup body 4, and it is more likely to cause the conventional paper-plastic cup lid 3 to fall off due to external forces. Better sealing and safety.
  • the main purpose of the present invention is to provide a paper-plastic molded cup lid that can completely fasten the cup body, in particular to a paper-plastic molded cup lid that is formed into an integral shape by using paper plastic molding technology.
  • the inner side of the lid has a C-shape
  • the ring receiving groove is provided with a convex arc wall protruding at each end of the C-shaped ring receiving groove, and the convex arc wall at both ends of the C-shaped ring receiving groove can be completely fastened and sealed
  • the outer hoop formed by the upper edge of the cup body achieves the effect of complete tightening and sealing.
  • the secondary objective of the present invention is to provide a paper-plastic molded cup lid that can completely fasten the cup body.
  • the convex arc wall at one end of the ring receiving groove can abut the outer surface of the upper edge of the cup body, while the convex arc wall at the other end of the C-shaped ring receiving groove can abut the inner surface of the upper edge of the cup body, making the cup
  • the cover simultaneously fastens the outer and inner sides of the upper edge of the cup body to achieve a completely fastened and sealed state.
  • a paper-plastic molded cup lid that can completely fasten the cup body.
  • the cup lid is provided with a central closed surface.
  • a ring-shaped side wall extends downward from the outer edge of the central closed surface. The end of the ring-shaped side wall faces the horizontal plane.
  • a circular expansion wall is expanded in the direction, and the circular expansion wall is turned by a circular arc and extends to form a vertically downward circular lower wall.
  • the circular expansion wall and the circular lower wall of the cup cover A C-shaped ring receiving groove is provided on the inner side of the arc turning point between the arcs, and a convex arc wall is protrudingly provided at both ends of the C-shaped ring receiving groove.
  • cup lid is integrally formed by paper-plastic molding technology using pulp fiber material.
  • the convex arc walls are respectively a first convex arc wall and a second convex arc wall, and one end of the C-shaped loop receiving groove close to the circular side wall is protruded on the inner surface of the circular expansion wall with the aforementioned first convex wall.
  • Convex arc wall, and the other end of the C-shaped ring receiving groove is protrudingly provided with the aforementioned second convex arc wall on the inner surface of the annular lower side wall, by means of the C-shaped ring receiving groove and the two ends of the C-shaped ring receiving groove
  • the first convex arc wall and the second convex arc wall can completely fasten and seal the upper edge of the cup body.
  • the central point C of the aforementioned C-shaped ring receiving groove extends a vertical vertical line V in the Z-axis direction
  • the central point C of the C-shaped ring receiving groove extends a horizontal line E in the X-axis direction
  • the first The convex arc wall is the vertex P at the outermost vertex
  • the second convex arc wall is vertex Q at the outermost vertex
  • the line connecting the vertex P of the first convex arc wall and the central point C of the C-shaped ring groove is Line L
  • the line connecting the vertex Q of the second convex arc wall with the central point C of the C-shaped ring receiving slot is the line K
  • taking the central point C of the C-shaped ring receiving slot as the reference the line L is connected with
  • the included angle ⁇ formed by the line K is less than 180 degrees.
  • the cup body combined with the cup cover forms an outer hoop on the upper edge of the cup body.
  • the cup cover is sleeved on the upper edge of the cup body to form an angular shape.
  • the hoop is completely fastened in the C-ring groove.
  • the central closed surface of the aforementioned cup lid is provided with a central axis U at the center, and a horizontal line G extends from the outer surface of the highest vertex of the central closed surface in the X-axis direction.
  • the first convex arc wall is located at the outermost vertex.
  • the second convex arc wall is the vertex Q at the outermost vertex
  • the longitudinal distance between the horizontal line G extending from the outer surface of the highest vertex of the central closed surface and the outermost vertex P of the first convex arc wall is the distance A
  • the longitudinal distance between the horizontal line G extending from the outer surface of the highest vertex of the central closed surface and the outermost vertex Q of the second convex arc wall is the distance B
  • the longitudinal distance A is less than the longitudinal distance B
  • the central axis U of the central closed surface is equal to
  • the horizontal distance between the outermost vertex P of the first convex arc wall is the distance M
  • the horizontal distance between the central axis U of the central closed surface and the outermost vertex Q of the second convex arc wall is the distance N
  • the horizontal distance M is less than the horizontal Distance N.
  • the upper edge of the cup body is an outer hoop ring formed by curling a thin sheet.
  • the second The convex arc wall is located on the outer side of the outer hoop of the cup body and has a reduced diameter toward the inside, and exerts a first external force on the outer side of the outer hoop of the cup body when it conflicts, and the first convex arc wall is located on the outer hoop of the cup body
  • a second external force is applied, that is, there is a distance drop between the first convex arc wall and the second convex arc wall, so that the first convex arc wall and the second convex arc wall can simultaneously face the cup body.
  • the inner and outer sides of the outer hoop ring exert a force.
  • the structural design of the first convex arc wall and the second convex arc wall increases the strength of the cup lid without being easily affected by external forces and deforming. Let the combination of the cup cover and the cup body cause looseness and instability.
  • a paper-plastic molded cup lid of the present invention that can completely fasten the cup body is formed into an integrally-molded cup lid by using paper-plastic molding technology.
  • the inner surface of the arc turning point between the lower side walls is provided with a C-shaped ring receiving groove, and one end of the C-shaped ring receiving groove close to the ring side wall is convexly provided with a first convex arc wall on the inner surface of the ring wall , And the other end of the C-shaped ring receiving groove is convexly provided with a second convex arc wall on the inner surface of the annular lower side wall, by means of the C-shaped ring receiving groove and the first convex at both ends of the C-shaped ring receiving groove The arc wall and the second convex arc wall can completely fasten and seal the upper edge of the cup body, thereby achieving the effect of complete fastening and sealing.
  • Figure 1 is a cross-sectional view of the lid of the present invention
  • Figure 2 is a schematic cross-sectional view of the combination of the cup lid and the cup body of the present invention
  • Figure 3 is a partial enlarged view of the second figure
  • Figure 4 is a half-sectional plan view of the first figure
  • Figure 5 is a schematic diagram of a common form of a conventional cup lid
  • Figure 6 is a schematic diagram of a common form of a conventional cup lid.
  • the present invention provides a paper-plastic molded cup lid 1 that can completely fasten the cup body 2, which uses pulp fiber material to Paper-plastic molding technology is used to form an integrated cup lid 1.
  • the cup lid 1 is provided with a central closing surface 10, and an annular side wall 11 extends downward from the outer edge of the central closing surface 10.
  • a circular amplification wall 12 is extended at the end toward the horizontal plane, and the circular amplification wall 12 is turned by a circular arc and extends to form a vertically downward circular lower side wall 13.
  • the circular amplification wall of the cup cover 1 The inner surface of the arc turning point between the wall 12 and the ring-shaped lower side wall 13 is provided with a C-shaped ring receiving groove 14 at both ends of the C-shaped ring receiving groove 14 protruding with a convex arc wall, which are the first
  • the convex arc wall 15 and the second convex arc wall 16 have the aforementioned first convex arc wall 15 protruding from one end of the C-shaped ring receiving groove 14 close to the annular side wall 11 on the inner surface of the annular expansion wall 12, and
  • the other end of the C-shaped ring receiving groove 14 is protrudingly provided with the aforementioned second convex arc wall 16 on the inner surface of the ring-shaped lower side wall 13.
  • the first convex arc wall 15 and the second convex arc wall 16 can completely fasten and seal the upper edge of the cup 2.
  • the central point C of the aforementioned C-shaped ring receiving groove 14 extends along the Z-axis direction to a vertical vertical line V, and the central point C of the C-shaped ring receiving groove 14 A horizontal line E extends in the X-axis direction.
  • the first convex arc wall 15 is the vertex P at the outermost vertex
  • the second convex arc wall 16 is vertex Q at the outermost vertex.
  • the vertex of the first convex arc wall 15 The connecting line between P and the central point C of the C-shaped ring receiving groove 14 is the line L, and the connecting line between the vertex Q of the second convex arc wall 16 and the central point C of the C-shaped ring receiving groove 14 is the connecting line K.
  • the central point C of the ring receiving groove 14 is used as a reference.
  • the angle ⁇ formed by the connecting line L and the connecting line K is less than 180 degrees, forming an angular shape to completely fasten the outer hoop ring 21 to the C-shaped ring receiving groove 14 Inside, so as to achieve the effect of complete tightening and sealing.
  • the central closed surface 10 of the aforementioned cup cover 1 is provided with a central axis U at the center, and extends from the outer surface of the highest vertex of the central closed surface 10 in the X-axis direction.
  • a horizontal line G, the longitudinal distance between the horizontal line G extending from the outer surface of the highest vertex of the central closed surface 10 and the outermost vertex P of the first convex arc wall 15 is the distance A, the horizontal line extending from the outer surface of the highest vertex of the central closed surface 10
  • the longitudinal distance between G and the outermost vertex Q of the second convex arc wall 16 is the distance B, the longitudinal distance A is smaller than the longitudinal distance B, and the central axis U of the central closed surface 10 and the outermost vertex P of the first convex arc wall 15
  • the horizontal distance of is the distance M, and the horizontal distance between the central axis U of the central enclosed surface 10 and the outermost vertex Q of the second convex arc wall 16 is the distance N, which is smaller than the horizontal distance N.
  • the upper edge of the cup 2 is an outer hoop 21 formed by curling a thin sheet.
  • the second convex arc wall 16 of the cover 1 is slightly deformed when pressed.
  • the outer hoop ring 21 continues to follow the surface of the second convex arc wall 16 to the C-shaped ring receiving groove 14 on the inner side of the cup cover 1.
  • the outer hoop 21 is completely accommodated in the C-shaped ring receiving groove 14 and is in close contact with it without a gap, and the first convex arc wall 15 of the cup cover 1 abuts against the inner side 22 of the outer hoop 21 of the cup body 2, and the cup The second convex arc wall 16 of the cover 1 abuts against the outer side surface 23 of the outer hoop 21 of the cup body 2. Please refer to FIGS. 2 to 4 at the same time.
  • the second convex arc wall 16 is located on the outer side 23 of the outer hoop 21 of the cup body 2 and has a reduced diameter toward the inner side, and the outer side 23 of the outer hoop 21 of the cup body 2 is applied when it is in conflict.
  • the first external force F1 and the first convex arc wall 15 is located on the inner surface 22 of the outer hoop ring 21 of the cup body 2, a second external force F2 is applied when it is in conflict, that is, the first convex arc wall 15 and the second convex arc wall 16 exist.
  • first convex arc wall 15 and the second convex arc wall 16 can simultaneously exert a force on the inner surface 22 and the outer surface 23 of the outer hoop 21 of the cup body 2, and by the first convex
  • the structural design of the arc wall 15 and the second convex arc wall 16 further increases the strength of the cup cover 1 without being easily affected by external forces and deforming, thereby achieving a complete fastening and sealing effect.
  • the present invention provides a paper-plastic molded cup lid 1 that can completely fasten the cup body 2.
  • a C-shaped ring receiving groove 14 on the inner surface of the arc turning point between the wall 12 and the ring-shaped lower side wall 13, and one end of the C-shaped ring receiving groove 14 close to the ring-shaped side wall 11 is in the ring-shaped enlarged wall.
  • the C-shaped ring receiving groove 14 is provided with a second convex arc wall 16 on the inner surface of the ring-shaped lower side wall 13, by which the C-shaped ring receives
  • the groove 14 and the first convex arc wall 15 and the second convex arc wall 16 at both ends of the C-shaped ring receiving groove 14 can completely fasten and seal the upper edge of the cup body 2, thereby achieving a complete fastening and sealing effect .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Closing Of Containers (AREA)
  • Portable Outdoor Equipment (AREA)
  • Table Devices Or Equipment (AREA)

Abstract

一种可完全紧扣杯体（2）的纸塑成型杯盖（1），其利用纸塑成型技术而形成为一体成型的杯盖（1），该杯盖（1）内侧具有一C型环纳槽（14），于C型环纳槽（14）两端头各凸设有一凸弧壁（15，16），借由该C型环纳槽（14）及于C型环纳槽（14）两端头的凸弧壁（15，16）可完全紧扣并密封住杯体（2）的上缘，从而达到完全紧固与密封的效果。

Description

可完全紧扣杯体的纸塑成型杯盖 技术领域
本发明涉及杯盖领域，特别是一种可完全紧扣杯体的纸塑成型杯盖。
 背景技术
随着环保意识的抬头与集结众多智慧的研发，以纸浆纤维材质或植物纤维材质为原料经模具成型的纸塑产品由于具有容易回收可再制造再利用的优势，因为很快速地被各行各业及普罗大众接受并采用，各式各样的纸塑产品渐渐的取代生活中各种塑料产品，不论是碗、盘、杯盖、吸管、包装材、避震材等纸塑产品都将逐渐取代塑料产品，纸塑产品由于材质从塑料转变为纸塑，在纸塑成型的过程中无法像塑料产品般为工业界所熟知且轻易成型各种形状，所以仍有许多产品在成型时或成型后无法达到塑料产品的效果或功能，但纸塑行业才刚起步仍旧有很大的进步发展空间。作为日常生活中最常见的消耗品之一，杯盖在使用上的要求特别严谨，作为容器体的杯盖除了要求食品级材质及卫生条件外，并要求更好的密封性与更大的安全性。
请参阅图5、6所示，目前习知纸塑杯盖3由于成型条件与材质所限而使其密封性均远不如塑料杯盖，习知纸塑杯盖3在成型时会将负角度的凹槽、向内倾斜的斜壁或各种不同几何方式作为扣合杯体4的卡制部31，在扣紧杯体4的外箍环41时容易因为尺寸无法完全契合导致杯盖3容易脱落或无法完全密封，常导致杯体4内液体外泄或溢出，习知纸塑杯盖3的卡制部31通常只考虑到扣合方式而未考虑其强度，若考虑强度则无法达到最佳的扣合力度，而令习知纸塑杯盖3容易受杯体4外箍环41影响而变形，更容易因为外力而令习知纸塑杯盖3脱落为其缺点，故无法达到较佳的密封性与安全性。
 技术问题
本发明的主要目的，是提供一种可完全紧扣杯体的纸塑成型杯盖，尤其是指一种利用纸塑成型技术而形成为一体成型的杯盖，该杯盖内侧具有一C型环纳槽，于C型环纳槽两端头各凸设有一凸弧壁，借由该C型环纳槽及于C型环纳槽两端头的凸弧壁可完全紧扣并密封住杯体的上缘所形成的外箍环，从而达到完全紧固与密封的效果。
本发明的次要目的，是提供一种可完全紧扣杯体的纸塑成型杯盖，该杯盖内侧可同时紧扣并密封住杯体的上缘的外侧面及内侧面，即C型环纳槽一端头的凸弧壁可抵触于杯体的上缘的外侧面，而C型环纳槽的另一端头的凸弧壁则可抵触于杯体的上缘的内侧面，使杯盖同时紧扣杯体的上缘的外侧面及内侧面而达到完全紧扣且密封的状态。
 技术解决方案
一种可完全紧扣杯体的纸塑成型杯盖，该杯盖设有一中央封闭面，于中央封闭面的外缘向下延伸出一环状侧壁，该环状侧壁的末端向水平面方向扩设有一环状扩增垣，该环状扩增垣再经圆弧转折并延伸形成有一垂直向下的环状下侧壁，该杯盖的环状扩增垣及环状下侧壁之间的圆弧转折处内侧面具有一C型环纳槽，于C型环纳槽两端头各凸设有一凸弧壁。
进一步的，该杯盖利用纸浆纤维材质以纸塑成型技术而一体成型。
进一步的，所述凸弧壁分别为第一凸弧壁及第二凸弧壁，该靠近于环状侧壁的C型环纳槽一端头于环状扩增垣内侧面凸设有前述第一凸弧壁，而C型环纳槽的另一端头于环状下侧壁内侧面凸设有前述第二凸弧壁，借由该C型环纳槽及于C型环纳槽两端头的第一凸弧壁及第二凸弧壁可完全紧扣并密封住所述杯体的上缘。
进一步的，前述C型环纳槽的中央点C并依Z轴方向延伸出一纵垂线V，而C型环纳槽的中央点C并依X轴方向延伸出一水平线E，该第一凸弧壁于最外顶点处为顶点P，该第二凸弧壁于最外顶点处为顶点Q，该第一凸弧壁的顶点P与C型环纳槽的中央点C相连线为连线L，该第二凸弧壁的顶点Q与C型环纳槽的中央点C相连线为连线K，以C型环纳槽的中央点C为基准，该连线L与连线K所形成的夹角角度θ小于180度，与该杯盖相结合的杯体，于杯体上缘形成一外箍环，杯盖套合于杯体上缘处而形成犄角形态将外箍环完全紧扣于C型环纳槽内。
进一步的，前述杯盖的中央封闭面于中心处设有一中央轴线U，于中央封闭面的最高顶点外表面并依X轴方向延伸出一水平线G，前述第一凸弧壁于最外顶点处为顶点P，前述第二凸弧壁于最外顶点处为顶点Q，该中央封闭面的最高顶点外表面延伸的水平线G与该第一凸弧壁的最外顶点P的纵向距离为距离A，该中央封闭面的最高顶点外表面延伸的水平线G与第二凸弧壁的最外顶点Q的纵向距离为距离B，该纵向距离A小于纵向距离B，而中央封闭面的中央轴线U与第一凸弧壁的最外顶点P的水平距离为距离M，该中央封闭面的中央轴线U则与第二凸弧壁的最外顶点Q的水平距离为距离N，该水平距离M小于水平距离N。
进一步的，将杯盖结合于杯体时，该杯体的上缘为一薄片卷曲而成的外箍环，杯体的外箍环与杯盖的C型环纳槽结合后，前述第二凸弧壁位于杯体的外箍环的外侧面往内侧呈缩小口径并对杯体的外箍环的外侧面于抵触时施有第一外力，而第一凸弧壁位于杯体的外箍环内侧面于抵触时则施有第二外力，即第一凸弧壁与第二凸弧壁存有距离上的落差，而造成第一凸弧壁与第二凸弧壁可同时对杯体的外箍环内侧面及外侧面施以作用力，借由第一凸弧壁与第二凸弧壁的结构设计更令杯盖的强度增强而不会轻易受外力影响而产生变形，也不易让杯盖与杯体的结合产生松脱不稳的现象。
 有益效果
采用上述方案后，本发明的一种可完全紧扣杯体的纸塑成型杯盖，其利用纸塑成型技术而形成为一体成型的杯盖，该杯盖的环状扩增垣及环状下侧壁之间的圆弧转折处内侧面具有一C型环纳槽，该靠近于环状侧壁的C型环纳槽一端头于环状扩增垣内侧面凸设有第一凸弧壁，而C型环纳槽的另一端头于环状下侧壁内侧面凸设有第二凸弧壁，借由该C型环纳槽及于C型环纳槽两端头的第一凸弧壁及第二凸弧壁可完全紧扣并密封住杯体的上缘，从而达到完全紧固与密封的效果。
 附图说明
图1是本发明杯盖的剖视图；
图2是本发明杯盖与杯体相结合的剖面示意图；
图3是第二图的局部放大图；
图4是第一图的半剖平面图；
图5是习知杯盖常见形式示意图；
图6是习知杯盖常见形式示意图。
符号说明：
1...杯盖
10...中央封闭面
11...环状侧壁
12...环状扩增垣
13...环状下侧壁
14...C型环纳槽
15...第一凸弧壁
16...第二凸弧壁
2...杯体
21...外箍环
22...内侧面
23...外侧面
3...杯盖
31...卡制部
4...杯体
41...外箍环
C...中央点
V...纵垂线
E...水平线
P...顶点
Q...顶点
L...连线
K...连线
θ...角度
U...中央轴线
G...水平线
A...距离
B...距离
M...距离
N...距离
F1... 第一外力
F2... 第二外力。
 本发明的实施方式
为了进一步解释本发明的技术方案，下面通过具体实施例来对本发明进行详细阐述。
为使审查员更能详细了解本发明的具体结构，请参考图1至图3所示，本发明提供一种可完全紧扣杯体2的纸塑成型杯盖1，其利用纸浆纤维材质以纸塑成型技术而形成一体成型的杯盖1，该杯盖1设有一中央封闭面10，于中央封闭面10的外缘向下延伸出一环状侧壁11，该环状侧壁11的末端向水平面方向扩设有一环状扩增垣12，该环状扩增垣12再经圆弧转折并延伸形成有一垂直向下的环状下侧壁13，该杯盖1的环状扩增垣12及环状下侧壁13之间的圆弧转折处内侧面具有一C型环纳槽14，于C型环纳槽14两端头各凸设有一凸弧壁，其分别为第一凸弧壁15及第二凸弧壁16，该靠近于环状侧壁11的C型环纳槽14一端头于环状扩增垣12内侧面凸设有前述第一凸弧壁15，而C型环纳槽14的另一端头于环状下侧壁13内侧面凸设有前述第二凸弧壁16，借由该C型环纳槽14及于C型环纳槽14两端头的第一凸弧壁15及第二凸弧壁16可完全紧扣并密封住杯体2的上缘。
依图3的视图方向及以三维空间坐标做为说明，前述C型环纳槽14的中央点C并依Z轴方向延伸出一纵垂线V，而C型环纳槽14的中央点C并依X轴方向延伸出一水平线E，第一凸弧壁15于最外顶点处为顶点P，第二凸弧壁16于最外顶点处为顶点Q，该第一凸弧壁15的顶点P与C型环纳槽14的中央点C相连线为连线L，第二凸弧壁16的顶点Q与C型环纳槽14的中央点C相连线为连线K，以C型环纳槽14的中央点C为基准，该连线L与连线K所形成的夹角角度θ小于180度，而形成犄角形态将外箍环21完全紧扣于C型环纳槽14内，从而达到完全紧固与密封的效果。
依图4的视图方向及以三维空间坐标做为说明，前述杯盖1的中央封闭面10于中心处设有一中央轴线U，于中央封闭面10的最高顶点外表面并依X轴方向延伸出一水平线G，该中央封闭面10的最高顶点外表面延伸的水平线G与第一凸弧壁15的最外顶点P的纵向距离为距离A，该中央封闭面10的最高顶点外表面延伸的水平线G与第二凸弧壁16的最外顶点Q的纵向距离为距离B，该纵向距离A小于纵向距离B，而中央封闭面10的中央轴线U与第一凸弧壁15的最外顶点P的水平距离为距离M，该中央封闭面10的中央轴线U则与第二凸弧壁16的最外顶点Q的水平距离为距离N，该水平距离M小于水平距离N。
将杯盖1由上往下套置于杯体2时，该杯盖1的环状下侧壁13及第二凸弧壁16依序抵触到杯体2的上缘并顺势向下套置，依本发明的杯体2如图3所示的实施例来论述，该杯体2的上缘为一薄片卷曲而成的外箍环21，当杯体2的外箍环21在受到杯盖1的第二凸弧壁16压迫时会稍微变形，该外箍环21持续依循着第二凸弧壁16表面直至杯盖1内侧面的C型环纳槽14，此时杯体2的外箍环21完全容纳于C型环纳槽14中并与其紧贴接触而无间隙，且杯盖1的第一凸弧壁15抵触于杯体2的外箍环21内侧面22，而杯盖1的第二凸弧壁16抵触于杯体2的外箍环21的外侧面23，请同时参考图2至图4所示，杯体2的外箍环21与杯盖1的C型环纳槽14结合后，第二凸弧壁16位于杯体2的外箍环21的外侧面23往内侧呈缩小口径并对杯体2的外箍环21的外侧面23于抵触时施有第一外力F1，而第一凸弧壁15位于杯体2的外箍环21内侧面22于抵触时则施有第二外力F2，即第一凸弧壁15与第二凸弧壁16存有距离上的落差，而造成第一凸弧壁15与第二凸弧壁16可同时对杯体2的外箍环21内侧面22及外侧面23施以作用力，且借由第一凸弧壁15与第二凸弧壁16的结构设计更令杯盖1的强度增强而不会轻易受外力影响而产生变形，从而达到完全紧固与密封的效果。
综上所述，本发明提供一种可完全紧扣杯体2的纸塑成型杯盖1，其利用纸塑成型技术而形成为一体成型的杯盖1，该杯盖1的环状扩增垣12及环状下侧壁13之间的圆弧转折处内侧面具有一C型环纳槽14，该靠近于环状侧壁11的C型环纳槽14一端头于环状扩增垣12内侧面凸设有第一凸弧壁15，而C型环纳槽14的另一端头于环状下侧壁13内侧面凸设有第二凸弧壁16，借由该C型环纳槽14及于C型环纳槽14两端头的第一凸弧壁15及第二凸弧壁16可完全紧扣并密封住杯体2的上缘，从而达到完全紧固与密封的效果。

Claims (6)

  1. 一种可完全紧扣杯体的纸塑成型杯盖，其中，杯体的上缘形成一薄片卷曲而成的外箍环，其特征在于：该杯盖设有一中央封闭面，于中央封闭面的外缘向下延伸出一环状侧壁，该环状侧壁的末端向水平面方向扩设有一环状扩增垣，该环状扩增垣再经圆弧转折并延伸形成有一垂直向下的环状下侧壁，该杯盖的环状扩增垣及环状下侧壁之间的圆弧转折处内侧面具有一C型环纳槽，于C型环纳槽两端头各凸设有一凸弧壁，杯盖可完全紧固结合杯体的外箍环并达到密封效果。
  2. 如权利要求1所述的可完全紧扣杯体的纸塑成型杯盖，其特征在于，该杯盖利用纸浆纤维材质以纸塑成型技术而一体成型。
  3. 如权利要求1所述的可完全紧扣杯体的纸塑成型杯盖，其特征在于，所述凸弧壁分别为第一凸弧壁及第二凸弧壁，该靠近于环状侧壁的C型环纳槽一端头于环状扩增垣内侧面凸设有前述第一凸弧壁，而C型环纳槽的另一端头于环状下侧壁内侧面凸设有前述第二凸弧壁，借由该C型环纳槽及于C型环纳槽两端头的第一凸弧壁及第二凸弧壁可完全紧扣并密封住所述杯体的上缘。
  4. 如权利要求3所述的可完全紧扣杯体的纸塑成型杯盖，其特征在于，前述C型环纳槽的中央点C并依Z轴方向延伸出一纵垂线V，而C型环纳槽的中央点C并依X轴方向延伸出一水平线E，该第一凸弧壁于最外顶点处为顶点P，该第二凸弧壁于最外顶点处为顶点Q，该第一凸弧壁的顶点P与C型环纳槽的中央点C相连线为连线L，该第二凸弧壁的顶点Q与C型环纳槽的中央点C相连线为连线K，以C型环纳槽的中央点C为基准，该连线L与连线K所形成的夹角角度θ小于180度，而形成犄角形态将所述外箍环完全紧扣于C型环纳槽内。
  5. 如权利要求3所述的可完全紧扣杯体的纸塑成型杯盖，其特征在于，前述杯盖的中央封闭面于中心处设有一中央轴线U，于中央封闭面的最高顶点外表面并依X轴方向延伸出一水平线G，前述第一凸弧壁于最外顶点处为顶点P，前述第二凸弧壁于最外顶点处为顶点Q，该中央封闭面的最高顶点外表面延伸的水平线G与该第一凸弧壁的最外顶点P的纵向距离为距离A，该中央封闭面的最高顶点外表面延伸的水平线G与第二凸弧壁的最外顶点Q的纵向距离为距离B，该纵向距离A小于纵向距离B，而中央封闭面的中央轴线U与第一凸弧壁的最外顶点P的水平距离为距离M，该中央封闭面的中央轴线U则与第二凸弧壁的最外顶点Q的水平距离为距离N，该水平距离M小于水平距离N。
  6. 如权利要求5所述的可完全紧扣杯体的纸塑成型杯盖，其特征在于，将杯盖结合于杯体时，杯体的外箍环与杯盖的C型环纳槽结合后，前述第二凸弧壁位于杯体的外箍环的外侧面往内侧呈缩小口径并对杯体的外箍环的外侧面于抵触时施有第一外力，而第一凸弧壁位于杯体的外箍环内侧面于抵触时则施有第二外力，即第一凸弧壁与第二凸弧壁存有距离上的落差，而造成第一凸弧壁与第二凸弧壁可同时对杯体的外箍环内侧面及外侧面施以作用力。
PCT/CN2020/089800 2020-05-12 2020-05-12 可完全紧扣杯体的纸塑成型杯盖 WO2021226827A1 (zh)

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