US20200369437A1 - Waterproof prestressing structure of water bottles or cups - Google Patents

Waterproof prestressing structure of water bottles or cups Download PDF

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Publication number
US20200369437A1
US20200369437A1 US16/868,553 US202016868553A US2020369437A1 US 20200369437 A1 US20200369437 A1 US 20200369437A1 US 202016868553 A US202016868553 A US 202016868553A US 2020369437 A1 US2020369437 A1 US 2020369437A1
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United States
Prior art keywords
main body
elastic body
cups
waterproof
cup
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.)
Abandoned
Application number
US16/868,553
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English (en)
Inventor
Ronald Tuan
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Individual
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Individual
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Publication of US20200369437A1 publication Critical patent/US20200369437A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G19/00—Table service
    • A47G19/22—Drinking vessels or saucers used for table service
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/0052—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers made in more than one piece
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/16—Water-bottles; Mess-tins; Cups
    • 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
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of curved cross-section
    • B65D11/04—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/02—Disc closures
    • B65D39/025—Disc closures the closure being maintained in place by an additional element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/023—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices with integral internal sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0225—Removable lids or covers without integral tamper element secured by rotation
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0015—Upper closure of the 41-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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0068—Lower closure
    • B65D2251/0075—Lower closure of the 39-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
    • B65D2251/00—Details relating to container closures
    • B65D2251/20—Sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2251/00—Details relating to container closures
    • B65D2251/20—Sealing means
    • B65D2251/205—Inserted
    • 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
    • B65D2543/00296—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00342—Central part of the lid
    • B65D2543/00351—Dome-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00435—Lids secured to an intermediate ring or like annular member fixed to the container 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00564—Contact between the container and the lid indirect by means of a gasket or similar intermediate ring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00953—Sealing means

Definitions

  • the present invention relates to the technical field of water bottles or cups, and more particularly to a waterproof prestressing structure of water bottles or cups.
  • the general structure of a water bottle or a cup mainly has a cup 11 and a lid 12 .
  • a gap is formed between the lid 12 and the cup 11 made of relatively hard materials.
  • the cup 11 is mainly filled with liquid, in order to prevent the liquid from leaking after the lid 12 is closed with the cup 11 , conventionally, a rubber ring 13 is provided between the lid 12 and the cup 11 .
  • the cup 11 mainly has a first screw thread surface 111 facing the lid 12
  • the lid 12 has a second screw thread surface 121 facing the cup 11
  • the rubber ring 13 is mounted between the first screw thread surface 111 and the second screw thread surface 121 .
  • the rubber ring 13 is not only subjected to vertical pressure from the cup 11 and the lid 12 ; because the rubber ring 13 abuts on the first screw thread surface 111 and the second screw thread surface 121 respectively, when the cup 11 and the lid 12 are screwed and rotated relative to each other in opposite directions, the rubber ring 13 is also subjected to torsion generated when the cup 11 and the lid 12 are screwed to combine with each other, which causes the rubber ring 13 to show a severely deformed state after the cup 11 and the lid 12 are completely screwed together.
  • a first object of the present invention is to solve the defect that the rubber ring is easily twisted to cause damage during use.
  • a second object of the present invention is to solve the problem that there is a gap between the rubber ring and the lid, which is prone to bacteria growth and causes bad smell.
  • the present invention is a waterproof prestressing structure of water bottles or cups including:
  • a first main body having a first connecting portion and a first connecting surface
  • a second main body having a second connecting portion and a second connecting surface, the second connecting portion is connected to the first connecting portion;
  • an elastic body made of a flexible material the elastic body has a first surface and a second surface, the first surface is integrally provided on the first connecting surface, when the first main body and the second main body are combined to connect the first connecting portion with the second connecting portion, the second surface is tightly pressed and abutted against the second connecting surface.
  • the first surface of the elastic body is integrally formed on the first connecting surface by gluing, heterogeneous integral molding, heterojunction molding, or hot mold opening molding.
  • the first surface of the elastic body is formed on the first connecting surface by heterogeneous integral molding.
  • the first surface of the elastic body is integrally formed on the first connecting surface by heterojunction molding.
  • the elastic body is made of an elastic material.
  • a material of the elastic body is silicone rubber.
  • the first main body has an open accommodating space, and the first connecting portion is an internal screw thread provided in the accommodating space;
  • the second main body includes a cup member and a throat member, the cup member has an inner wall surface facing an internal cup space, the inner wall surface is concavely provided with a ring groove, the throat member is mounted on a cup rim of the cup member, the throat member has a ring rib convexly provided facing the inner wall surface, the ring rib is concavo-convexly combined with the ring groove, so that the throat member and the cup member are fixedly combined with each other, the second connecting portion is provided on the throat member, the second connecting portion is an external screw thread, the second connecting surface is located on the cup member, and the first connecting surface surrounds the cup rim of the cup member.
  • the elastic body and the first main body are closely integrated into one body.
  • the first surface of the elastic body Since the first surface of the elastic body is fixed on the first connecting surface, the first surface of the elastic body does not deform due to the first main body and the second main body being screwed to connect with each other, because only the second surface of the elastic body deforms in a tight state, the elastic body does not excessively deform in the tight state, thereby reducing twist or damage of the elastic body caused by screwing.
  • FIG. 1 is a perspective exploded view of a conventional water bottle or cup
  • FIG. 2 is a cross-sectional view of a conventional water bottle or cup in a closed state when being closed;
  • FIG. 3 is a cross-sectional view of a conventional water bottle or cup in a tight state after being screwed tightly;
  • FIG. 4 is an exploded perspective view of a first embodiment of a waterproof prestressing structure of water bottles or cups of the present invention
  • FIG. 5 is a partially enlarged view of a first main body in FIG. 4 ;
  • FIG. 6 is a partially enlarged view of a second main body in FIG. 4 ;
  • FIG. 7 is a partial cross-sectional view of the first embodiment of the present invention in the closed state
  • FIG. 8 is a partial cross-sectional view of the first embodiment of the present invention in the tight state
  • FIG. 9A shows the mating state of an internal screw thread and an external screw thread of the present invention in the closed state
  • FIG. 9B shows the mating state of the internal screw thread and the external screw thread of the present invention in the tight state
  • FIG. 10 is an exploded perspective view of a second embodiment of the waterproof prestressing structure of water bottles or cups of the present invention.
  • FIG. 11 is a partial cross-sectional view of the second embodiment of the present invention in the closed state
  • FIG. 12 is a partial cross-sectional view of the second embodiment of the present invention in the tight state.
  • FIG. 13 is a partial cross-sectional view of a third embodiment of the waterproof prestressing structure of water bottles or cups of the present invention.
  • the present invention is a waterproof prestressing structure of water bottles or cups including:
  • a first main body 20 having a first connecting portion 21 and a first connecting surface 22 ;
  • a second main body 30 having a second connecting portion 31 and a second connecting surface 32 , the second connecting portion 31 is connected to the first connecting portion 21 ;
  • an elastic body 40 having a first surface 41 and a second surface 42 , the first surface 41 is integrally disposed on the first connecting surface 22 , when the first connecting portion 21 is connected to the second connecting portion 31 , the second surface 42 is tightly pressed and abutted against the second connecting surface 32 .
  • the first main body 20 is a cup lid, the first main body 20 has an open accommodating space 23 , and the first connecting portion 21 is an internal screw thread disposed in the accommodating space 23 .
  • the second main body 30 includes a cup member 33 and a throat member 34 .
  • the cup member 33 has an inner wall surface 331 facing an internal cup space, the inner wall surface 331 is concavely provided with a ring groove 332 .
  • the throat member 34 is mounted on a cup rim of the cup member 33 , the throat member 34 has a ring rib 341 convexly provided facing the inner wall surface 331 , and the ring rib 341 is concavo-convexly combined with the ring groove 332 , so that the throat member 34 and the cup member 33 are fixedly combined with each other.
  • the second connecting portion 31 is provided on the throat member 34 , the second connecting portion 31 is an external screw thread, the second connecting surface 32 is located on the cup member 33 , and the first connecting surface 22 surrounds the cup rim of the cup member 33 .
  • the elastic body 40 is fixed on the first main body 20 by heterogeneous integral molding, heterojunction molding, or hot mold opening molding.
  • a mold is provided, the formed first main body 20 is placed in the mold, and then a forming material of the elastic body 40 is poured into the same mold.
  • the forming material of the elastic body 40 is a thermosetting material. After the materials of the elastic body 40 and the first main body 20 are poured into the mold and heated, the elastic body 40 and the first main body 20 are fixed and heterogeneously integrally molded.
  • the elastic body 40 and the first main body 20 are formed separately.
  • the elastic body 40 and the first main body 20 are made of thermoplastic materials, the molded elastic body 40 or the molded first main body 20 is heated, and because the molded elastic body 40 and the first main body 20 are made of thermoplastic materials, the elastic body 40 and the first main body 20 can be joined with each other after heating. After cooling, the two heterogeneous materials are fixed and heterogeneously molded by junction.
  • the hot mold opening molding a mold is provided, and the formed first main body 20 is placed in the mold.
  • the first main body 20 is made of a thermoplastic material, and then a forming material of the elastic body 40 is poured into the same mold.
  • the forming material of the elastic body 40 is a thermosetting material.
  • the elastic body 40 and the first main body 20 are closely integrated into one body.
  • the first surface 41 of the elastic body 40 is integrally provided on the first connecting surface 22 .
  • the second surface 42 of the elastic body 40 abuts against the second connecting surface 32 .
  • FIG. 8 when screwing to reach a tightened state, since the first surface 41 of the elastic body 40 is fixedly combined to the first connecting surface 22 , only the second surface 42 of the elastic body 40 deforms during tightening.
  • the elastic body 40 is made of an elastic material, such as silicone rubber.
  • the elastic body 40 is not limited to only capable of integrally disposing on the first connecting surface 22 with the first surface 41 , the second surface 42 of the elastic body 40 can also be integrally disposed on the second connecting surface 32 .
  • the first main body 20 and the second main body 30 are closed with each other, the first surface 41 abuts against the first connecting surface 22 and deforms.
  • the first main body 20 is a cup lid, and the first main body 20 has a head portion 24 and a screw portion 25 connected to each other. A diameter of the head portion 24 is greater than that of the screw portion 25 , the first connecting surface 22 is located between the head portion 24 and the screw portion 25 .
  • the first connecting surface 22 faces the second connecting surface 32 , and the elastic body 40 is disposed on the first connecting surface 22 .
  • the first connecting portion 21 is provided on the screw portion 25 , in the second embodiment, the first connecting portion 21 is an external screw thread, and the second connecting portion 31 of the second main body 30 is an internal screw thread.
  • the second surface 42 of the elastic body 40 is attached on the second connecting surface 32 .
  • FIG. 12 after the first main body 20 and the second main body 30 are tightly screwed to combine with each other, the first surface 41 of the elastic body 40 that is fixed on the first connecting surface 22 does not deform, only the second surface 42 deforms.
  • the elastic body 40 is not limited to only capable of integrally disposing on the first connecting surface 22 with the first surface 41 , the second surface 42 of the elastic body 40 can also be integrally disposed on the second connecting surface 32 .
  • the first main body 20 and the second main body 30 are closed with each other, the first surface 41 abuts against the first connecting surface 22 and deforms.
  • the first connecting surface 22 is inclined to increase an area of the first connecting surface 22
  • the elastic body 40 is integrally provided on the first connecting surface 22 . Since the elastic body 40 completely covers the first connecting surface 22 , compared with the second embodiment, an area of the elastic body 40 in contact with the first connecting surface 22 is larger in the last embodiment, so that the elastic body 40 is less easily to fall off from the first connecting surface 22 .
  • the second main body 30 has a convex portion 35 protruding toward the elastic body 40 .
  • the convex portion 35 abuts against the elastic body 40 and the second connecting surface 32 , when the first main body 20 is screwed to combine with the second main body 30 , the convex portion 35 is capable of tightly abutting against the elastic body 40 , so that when the elastic body 40 is screwed to combine with the first main body 20 and the second main body 30 , the elastic body 40 can not only tightly abut the second connecting surface 32 , but also tightly attach to the convex portion 35 , thereby further enhancing a degree of tightness between the first main body 20 and the second main body 30 .
  • the user first screws the first main body 20 to combine with the second main body 30 to attach the second surface 42 of the elastic body 40 to the second connecting surface 32 , as shown in the state of FIG. 7 and FIG. 9A .
  • the first connecting surface 22 is closer to the second connecting surface 32 , so that it is in the tight state Q 2 .
  • the elastic body 40 is made of a flexible material, the second surface 42 of the elastic body 40 is deformed by pressing and turning force of the second connecting surface 32 , and then the elastic body 40 is tightly attached to the second connecting surface 32 according to a shape of the second connecting surface 32 so as to achieve the effect of preventing water leakage.
  • the first surface 41 of the elastic body 40 is fixed on the first connecting surface 22 , the first surface 41 of the elastic body 40 will not be deformed by the first main body 20 and the second main body 30 being screwed to combined with each other to present the state shown in FIGS. 8 and 9B . Since only the second surface 42 of the elastic body 40 deforms in the tight state Q 2 , and the elastic body 40 does not excessively deforms in the tight state Q 2 , thereby reducing twist or damage of the elastic body 40 due to screwing.
  • the elastic body 40 is fixed on the first main body 20 by heterogeneous integral molding, heterojunction molding, or hot mold opening molding, a gap does not form between the elastic body 40 and the first main body 20 , and therefore liquid does not permeate between the elastic body 40 and the first main body 20 during use, which not only effectively prevents bacteria and dirt from accumulating, but also does not produce bad smell even after long period of use.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Cookers (AREA)
  • Table Devices Or Equipment (AREA)
US16/868,553 2019-05-21 2020-05-07 Waterproof prestressing structure of water bottles or cups Abandoned US20200369437A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW108117486A TWI691440B (zh) 2019-05-21 2019-05-21 水壺或水杯的防水預力結構
TW108117486 2019-05-21

Publications (1)

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US20200369437A1 true US20200369437A1 (en) 2020-11-26

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US16/868,553 Abandoned US20200369437A1 (en) 2019-05-21 2020-05-07 Waterproof prestressing structure of water bottles or cups

Country Status (5)

Country Link
US (1) US20200369437A1 (de)
JP (1) JP2020189086A (de)
DE (1) DE102020111794B4 (de)
GB (1) GB2585468A (de)
TW (1) TWI691440B (de)

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US4091948A (en) * 1976-03-15 1978-05-30 Northup John D Linerless container closure
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GB2585468A (en) 2021-01-13
GB202006682D0 (en) 2020-06-17
DE102020111794B4 (de) 2021-07-01
JP2020189086A (ja) 2020-11-26
TWI691440B (zh) 2020-04-21

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