WO2019093068A1 - 合成樹脂製多重容器 - Google Patents
合成樹脂製多重容器 Download PDFInfo
- Publication number
- WO2019093068A1 WO2019093068A1 PCT/JP2018/038069 JP2018038069W WO2019093068A1 WO 2019093068 A1 WO2019093068 A1 WO 2019093068A1 JP 2018038069 W JP2018038069 W JP 2018038069W WO 2019093068 A1 WO2019093068 A1 WO 2019093068A1
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- opening
- synthetic resin
- peripheral surface
- bottle
- inner opening
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
- B65D1/0215—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features multilayered
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
- B65D1/023—Neck construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
- B65D1/023—Neck construction
- B65D1/0246—Closure retaining means, e.g. beads, screw-threads
-
- 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
- B65D23/00—Details of bottles or jars not otherwise provided for
- B65D23/02—Linings or internal coatings
-
- 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
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/14—Linings or internal coatings
- B65D25/16—Loose, or loosely-attached, linings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
- B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D79/00—Kinds or details of packages, not otherwise provided for
- B65D79/005—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting
-
- 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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the 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
- B65D2205/00—Venting means
Definitions
- the present invention relates to a synthetic resin multiple container provided with an inner container body disposed in an outer shell bottle.
- volume reduction deformation an inner container that is deformed by external pressure reduction (hereinafter sometimes referred to as "volume reduction deformation") is disposed inside the outer shell bottle that can be restored to its original shape with respect to external pressure, and the outer shell bottle.
- volume reduction deformation a synthetic resin multiple bottle in which external air is introduced into the container body (see, for example, Japanese Patent Application Laid-Open No. 2013-245010, Japanese Patent Application Laid-Open No. 2010-028916).
- the volume of the inner container body is reduced and the contents stored in the inner container body are poured out while the pressure is released.
- Outside air is introduced between the shell bottle and the inner container body by the action of a separately provided check valve or the like.
- the inner container body is maintained in a state of reduced volume deformation. In this case, since the outside air does not intrude into the inner container body, it is possible to prevent the contents contained in the inner container body from being deteriorated due to oxidation or the like.
- the void remaining in the limit state of the volume reduction deformation of the inner container body of the multi-vessel ie, the void which can not be crushed (hereinafter referred to as dead space) is filled with the contents. If it is larger than the space where the later gas exists (hereinafter referred to as the head space), there is a problem that the gas volume of the head space can not completely expel the contents of the dead space. It is desirable to set the dead space smaller than the head space.
- the outer opening of the outer shell bottle and the inner opening of the inner container body are portions where a cap or the like is provided, so they are portions that do not deform due to external pressure, and from the viewpoint of reducing dead space It is conceivable to reduce the internal volume of the mouth.
- An object of this invention is to provide the synthetic resin multiple bottle which can make a dead space small without receiving to the influence of the specification of an outer opening part in view of the above point.
- the present invention is A composite having a cylindrical outer opening, a shoulder connected to the outer opening, a body connected to the shoulder, and a bottom connected to the body, wherein the original shape can be returned to external pressure
- An inner container body having a cylindrical inner opening disposed inside the outer opening of the outer shell bottle, and an inner container connected to the inner opening and shaped according to the inner surface of the outer shell bottle and deformed by an external pressure
- an inner container body made of synthetic resin, An air passage formed between the outer opening and the inner opening to introduce outside air between the outer shell bottle and the inner container body;
- a plastic multiple bottle comprising A smaller diameter portion smaller in diameter than the inner diameter of the opening end of the inner opening portion is provided on the inner peripheral surface of the inner opening portion.
- the present invention it is possible to provide a synthetic resin multiple bottle in which the volume of the inner opening is reduced by the small diameter portion and the dead space is reduced. Further, since the volume in the inner opening can be reduced without reducing the outer diameter of the outer opening, the volume of the inner opening can be reduced while maintaining the outer opening at a diameter conforming to the standard. Dead space can be reduced.
- the opening end of the inner opening is formed to be larger in diameter than the small diameter portion, the blow molding nozzle or the content is filled when blow molding or filling the contents even if the volume of the inner opening is decreased.
- the object filling nozzle can be easily inserted into the inner opening.
- At the upper end outer peripheral surface of the inner opening at least a portion except the portion forming the air passage contacts the inner peripheral surface of the outer opening.
- a separation portion which is a contact portion is an outer peripheral surface of the inner opening portion and is located below the upper end contact portion in a region corresponding to the small diameter portion, and is separated from an inner peripheral surface of the outer opening portion. It is preferable that the gap be provided radially inward with respect to the air passage.
- the volume in the inner opening can be reduced without reducing the outer diameter of the outer opening, so the volume of the inner opening can be maintained while maintaining the diameter of the outer opening according to the standard. It can be reduced to reduce dead space.
- a separation portion may be provided between the outer peripheral surface of the inner opening and the inner peripheral surface of the outer opening so as to be located at a portion corresponding to the small diameter portion, and the separation may be separated radially inward of the air passage.
- the gap other than the air passage can be formed relatively large, and the amount of the resin in the inner opening can be suppressed to reduce the cost.
- the upper end contact portion of the inner opening contacts the inner peripheral surface of the outer opening, rattling of the inner opening can be prevented during blow molding and subsequent handling of the multiple bottle.
- At least a portion of the outer peripheral surface of the lower end portion of the inner opening except for the portion forming the air passage contacts the inner peripheral surface of the outer opening. It is preferable that it is a contact part.
- the volume in the inner opening can be reduced without reducing the outer diameter of the outer opening, so the volume of the inner opening can be maintained while maintaining the diameter of the outer opening according to the standard. It can be reduced to reduce dead space.
- the inner opening can be fixed to the outer opening in a stable state.
- FIG. 1 is a cross-sectional view showing a first embodiment of a synthetic resin multiple bottle according to the present invention.
- FIG. 2 is explanatory drawing which shows the dead space of the inner container body main body of the synthetic resin multiple bottle made of 1st Embodiment.
- FIG. 3A is an enlarged front view showing the outer opening and the inner opening of the synthetic resin multiple bottle of the first embodiment.
- FIG. 3B is a plan view of the synthetic resin multiple bottle of the first embodiment.
- FIG. 3C is a cross-sectional view taken along the line AA of FIG. 3B.
- FIG. 4 is an enlarged cross-sectional view showing an outer opening and an inner opening of a synthetic resin multiple bottle according to a second embodiment of the present invention.
- FIG. 4 is an enlarged cross-sectional view showing an outer opening and an inner opening of a synthetic resin multiple bottle according to a second embodiment of the present invention.
- FIG. 5 is an enlarged sectional view showing the outer opening and the inner opening of the synthetic resin multiple bottle according to the third embodiment of the present invention.
- FIG. 6 is an enlarged cross-sectional view of the outer opening and the inner opening of the synthetic resin multiple bottle according to the fourth embodiment of the present invention.
- FIG. 7 is an explanatory view showing a synthetic resin multiple bottle of a comparative example.
- the synthetic resin multiple bottle 1 of the first embodiment is accommodated inside the outer shell bottle 2 which can be restored to the original pressure and the outer shell bottle 2 and is deformed by the outer pressure. It consists of an inner container body 3.
- the shell bottle 2 and the inner container body 3 are made of, for example, polyethylene terephthalate resin.
- the outer shell bottle 2 includes a cylindrical outer opening 4, a shoulder 5 connected to the outer opening 4, a body 6 connected to the shoulder 5, and a bottom 7 connected to the body 6. .
- the bottom portion 7 is provided with a recess 8 which is recessed on the inner peripheral side inside the outer shell bottle 2 to provide the synthetic resin multiple bottle 1 with self-supporting property, and a grounding portion 9 is provided between the bottom portion 7 and the recess 8. It has become.
- FIG. 3A is a front view showing the outer opening 4 and the inner opening 17 in an enlarged manner.
- FIG. 3B is a plan view showing the outer opening 4 and the inner opening 17 in an enlarged manner.
- FIG. 3C is a cross-sectional view showing a state in which the outer opening 4 and the inner opening 17 are cut along the line AA in FIG. 3B.
- the outer opening 4 has an external thread 10 on the outer peripheral surface, and a support ring 11 located below the external thread 10, and the shoulder 5 is in contact with the outer opening 4 It has a quadrangular pyramidal part 12 and has a diameter gradually increasing from the quadrangular pyramidal part 12 toward the body 6 below the quadrangular pyramidal part 12 and having a smooth square pyramid square leading to a cylindrical trunk
- the upper portion 13 is provided.
- the body 6 has a circular cross section perpendicular to the axis, and is connected to the shoulder 5 via the first circumferential groove 6a, and connected to the bottom 7 via the second circumferential groove 6b. There is.
- the body 6 gradually reduces in diameter from the lower end of the circumferential groove 6a connected to the shoulder 5 toward the central portion 6c, and proceeds from the central portion 6c to the upper end of the peripheral groove 6b connected to the bottom 7 It has a drum shape that gradually expands.
- the body portion 6 includes a plurality of longitudinal ribs 14 extending in the axial direction along the entire circumference of the drum-like region between the circumferential groove portions 6a and 6b.
- the bottom 7 has a square pyramidal portion 15 at a portion in contact with the ground contact portion 9, and the diameter of the square pyramidal portion 15 gradually increases from the square pyramidal portion 15 toward the trunk 6 above the square pyramidal portion 15
- the lower portion 16 is connected to the cylindrical body and becomes smooth.
- the quadrangular pyramidal portions 12 and 15 each have a quadrangular cross section orthogonal to the axis, and R is attached to the apex, and the ridgeline 12 a or 15 a is provided at the apex.
- the ridgeline 15a is continuous with the ridgeline 12a.
- the inner container body 3 is connected to the cylindrical inner opening 17 disposed on the inner peripheral side of the outer opening 4 and the inner opening 17, and the shoulder 5 and the trunk 6 of the outer shell bottle 2
- An inner container body 18 having a shape conforming to the inner surface shape of the bottom 7, the recess 8, and the ground portion 9 is provided.
- the inner opening portion 17 includes an extending portion 19 extending upward from the upper end of the outer opening portion 4 at the upper portion.
- the extending portion 19 is provided with a flange portion 20 projecting radially outward, and the lower surface of the flange portion 20 contacts the upper end edge of the outer opening portion 4 to make the inner opening portion 17 open. It is locked to.
- the inner opening portion 17 is provided with a longitudinal groove 21 on the outer peripheral surface.
- the longitudinal groove 21 is continuous with the lateral groove 22 formed on the lower surface of the collar portion 20, and the lateral groove 22 is open to the outside at the outer peripheral edge of the collar portion 20.
- the vertical groove 21 and the horizontal groove 22 form an air passage 23 for introducing the outside air between the shell bottle 2 and the inner container body 3.
- the inner opening portion 17 is provided with a small diameter portion 24 whose inner diameter is smaller than the inner diameter of the opening portion at a position spaced from the upper end edge.
- the small diameter portion 24 is connected to the small diameter portion 24 through the upper inclined surface 25 which is gradually reduced in diameter at an inclination angle of about 45 degrees from the position leaving a predetermined distance from the upper end edge on the inner peripheral surface of the inner opening portion 17 ing.
- a lower side inclined surface 26 which is gradually diameter-expanded.
- the upper end of the inner opening 17 is provided with a flange 20 which protrudes radially outward and whose lower surface is in contact with the upper end of the outer opening 4.
- the upper end contact portion 28 (see FIG. 3) which contacts the inner peripheral surface of the outer opening 4 except for the region corresponding to the air passage 23, and is the outer peripheral surface of the inner opening 17.
- a separation portion 27 is provided below the upper end contact portion 28 so as to be located in a region corresponding to the small diameter portion 24 and to be separated from the inner peripheral surface of the outer opening 4.
- At least a part of the outer opening 4 is at the outer peripheral surface of the lower end of the inner opening 17 and excluding the part forming the air passage 23.
- a lower end contact portion 29 that contacts the inner circumferential surface is provided.
- the outer opening 4 has an outer diameter of 24 mm (27.45 mm including the male screw 10), an inner diameter of 21.6 mm, a height of 21.01 mm, and an outer diameter of the support ring 11 in order to conform to the standard of the PCO 1810 standard opening. , Is set to 31.6 mm.
- the inner peripheral surface of the inner opening 17 is provided with a small diameter portion 24 whose diameter is smaller than the inner diameter of the opening end of the inner opening 17.
- the inner diameter of the opening end of the inner opening 17 is set to 17.6 mm.
- the inner diameter is set to 14.7 mm.
- the height of the inner opening 17 is set to 24.01 mm.
- the synthetic resin multiple bottle 1 can be manufactured, for example, by disposing an inner preform forming the inner container body 3 inside an outer preform forming the outer shell bottle 2 and blow molding the inner preform.
- This blow molding can be carried out in a manner known per se using known blow molding equipment.
- the synthetic resin multiple bottle 1 of the present embodiment when the inner container body main body 18 is deformed by the external pressure and the volume in the inner container body 3 becomes the smallest, in the vicinity of the inner opening 17 and the vicinity of the recess 8 There is a dead space where the inner container body 18 can not be completely crushed. And, in the synthetic resin multiple bottle 1 of the present embodiment, the total volume of the volume in the dead space and the volume in the inner opening portion 17 is the inner container body 3 before the inner container main body 18 is deformed by the external pressure.
- the volume in the inner opening 17 is set so as to be 10% or less of the inner volume.
- the volume in the inner opening part 17 of this embodiment is 5.3 ml, and in the case of a 500 ml synthetic resin multiple bottle, it becomes 1.06%.
- the internal volume of the synthetic resin multiple bottle 1 is 500 ml
- the volume in the inner opening 17 By setting the volume in the inner opening 17 in this manner, the dead space in the inner opening 17 can be reduced, and the rod, nozzle, and the like at the time of blow molding of the synthetic resin multiple bottle 1 can be reduced.
- the inner diameter necessary for insertion into the portion 17 can be secured.
- the volume in the inner opening 17 can be reduced without reducing the outer diameter of the outer opening 4. Therefore, the outer opening 4 is set to a standard. While maintaining the diameter, the volume of the inner opening 17 can be reduced to reduce dead space.
- the open end of the inner opening 17 is formed larger in diameter than the small diameter portion 24, even when the volume of the inner opening 17 is reduced, the rod or nozzle at the time of blow molding, or at the time of filling the contents Can be easily inserted into the inner opening.
- the inner circumferential surface of the inner opening 17 is provided with a small diameter portion 24 having a diameter smaller than the inner diameter of the opening end of the inner opening 17, and the inner diameter of the opening end of the inner opening 17 is 17.6 mm.
- the inner diameter of the small diameter portion 24 is set to 14.7 mm.
- the height of the inner opening 17 is set to 24.01 mm.
- the separation portion 27 between the outer peripheral surface of the inner opening portion 17 and the inner peripheral surface of the outer opening portion 4 so as to be positioned at a portion corresponding to the small diameter portion 24, the inner peripheral surface of the outer opening portion 4
- the gap other than the air passage 23 can be formed relatively large, and the amount of resin in the inner opening 17 is suppressed. Cost reduction can be achieved also for the synthetic resin multiple bottle 1 as a whole.
- the inner opening portion 17 since the upper end contact portion 28 of the inner opening portion 17 contacts the inner peripheral surface of the outer opening portion 4, the inner opening portion 17 can be stably fixed.
- the volume in the inner opening 17 can be reduced without reducing the outer diameter of the outer opening 4 so much. Therefore, the outer diameter of the outer opening 4 can be maintained at an appropriate size as compared with the case where the outer opening 4 has a small diameter similarly to the inner opening 17, and the outer opening 4 is screwed. It is easy to open and close the cap to be worn.
- the filling nozzle is inserted into the inner opening 17 when filling the contents into the synthetic resin multiple bottle 1, but the inner diameter of the inner opening 17 so that filling nozzles having different diameters can be inserted into the inner opening 17.
- the small diameter portion 24 can cope with the design of the inner opening 17 without changing the shape of the outer opening, and the versatility of the outer shell bottle can be enhanced.
- At least a part of the outer opening 4 is at the outer peripheral surface of the lower end of the inner opening 17 and excluding the part forming the air passage 23.
- a lower end contact portion 29 that contacts the inner circumferential surface is provided. When the lower end contact portion 29 contacts the inner peripheral surface of the outer opening 4, the inner opening 17 can be stably fixed.
- the portion in contact with the outer opening 4 of the shoulder portion 5 is a square pyramidal portion 12
- the portion in contact with the ground portion 9 of the bottom portion 7 is a square pyramidal portion 15.
- the portion of the shoulder portion 5 in contact with the outer opening 4 and the portion of the bottom portion 7 in contact with the ground contact portion 9 may have a polygonal pyramid shape or a conical shape.
- the circumferential groove portions 6a and 6b are provided at the upper and lower portions of the body portion 6, but instead of the circumferential groove portion 6a, a step portion gradually reducing the diameter from the shoulder portion 5 toward the body portion 6
- a step may be provided which gradually reduces the diameter from the bottom 7 toward the body 6.
- the synthetic resin multiple bottle 1 of the present embodiment can obtain the effect of reinforcing the upper and lower portions of the body portion 6 by providing the circumferential groove portions 6a and 6b or the step portion, and the circumferential groove portions 6a and 6b or It is possible to further improve the squeeze property of the body portion 6 sandwiched between the step portions.
- the shape of the inner opening 17 has a maximum outer diameter of 21.6 mm, a maximum inner diameter of 17.6 mm, a minimum inner diameter of 14.7 mm, and a height of 24.01 mm.
- the volume in the inner container body is deformed by the external pressure so that the dead space is equal to or less than the head space and the volume in the inner container body (initial volume) before the inner container is deformed.
- the volume in the inner opening is 0.5 to 1 so that the total volume (minimum volume) of the volume of the dead space in the inner container body and the volume in the inner opening at the time of It is sufficient if the inner diameter is 19 mm or less, and the height is 25 mm or less and 18 mm or more. When the inner diameter of the inner opening exceeds 19 mm or the height exceeds 25 mm, it becomes difficult to keep the minimum volume to 10% or less of the initial volume.
- the inner diameter of the inner opening is smaller than 9 mm, there is a possibility that the nozzle for filling the contents can not be inserted.
- the height of the inner opening is less than 18 mm, it becomes difficult to conform to the standard of the standard PCO 1810 standard opening.
- the dimensions of the inner opening in FIG. 4 as another embodiment are set to a maximum outer diameter of 21.6 mm, a maximum inner diameter of 17.6 mm, a minimum inner diameter of 15.48 mm, and a height of 24.01 mm.
- the volume in the inner mouth portion of FIG. 4 is 6.1 ml, which is 1.2% in the case of a 500 ml synthetic resin multiple bottle.
- the small diameter portion of the inner opening shown in FIG. 4 is located further downward as compared with the small diameter portion of the inner opening shown in FIG.
- the dimensions of the outer opening shown in FIG. 4 are the same as the dimensions of the outer opening 4 shown in FIG.
- the dimensions of the inner opening in FIG. 5 as another embodiment are set to a maximum inner diameter of 17.6 mm, a minimum inner diameter of 10.67 mm, and a height of 24.01 mm.
- the volume in the inner mouth portion of FIG. 5 is 4.3 ml, which is 0.9% in the case of a 500 ml synthetic resin multiple bottle.
- the dimensions of the outer opening shown in FIG. 5 are the same as the dimensions of the outer opening 4 shown in FIG.
- the dimensions of the inner opening in FIG. 6 as another embodiment are set to a maximum inner diameter of 17.6 mm, a minimum inner diameter of 10.584 mm, and a height of 19.00 mm.
- the volume in the inner mouth portion of FIG. 6 is 3.7 ml, which is 0.7% in the case of a 500 ml synthetic resin multiple bottle.
- the dimensions of the outer opening shown in FIG. 6 are the same as the dimensions of the outer opening 4 shown in FIG.
- FIG. 7 shows a synthetic resin multiple bottle in which the small diameter portion is not provided at the inner opening as a comparative example.
- the dimensions of the outer opening shown in FIG. 7 are the same as the dimensions of the outer opening 4 shown in FIG.
- the volume in the inner opening can also be reduced by reducing the inner diameter of the inner opening as a whole.
- a rod or a nozzle is inserted into the inner opening when the outer shell bottle and the inner container body of the synthetic resin multiple bottle are blow molded. This becomes difficult, and it becomes difficult to insert the filling nozzle in filling the contents into the synthetic resin multiple bottle into the inner opening.
- the volume of the inner opening 17 is reduced by providing the small diameter portion 24 having a diameter smaller than the inner diameter of the opening end of the inner opening 17 on the inner peripheral surface of the inner opening 17. While reducing it, it is possible to make it easier to insert a rod or nozzle for blow molding or a nozzle for filling contents into the inner opening 17. Further, the rod or the nozzle can smoothly pass through the small diameter portion 24 without being caught by the inner peripheral surface of the inner opening portion 17 between the opening end of the inner opening portion 17 and the small diameter portion 24 by the upper inclined surface 25. .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Food Science & Technology (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Table Devices Or Equipment (AREA)
- Packages (AREA)
Abstract
Description
円筒状外口部と、該外口部に連接する肩部と、該肩部に連接する胴部と、該胴部に連接する底部とを有し、外圧に対して原形復帰可能である合成樹脂製の外殻ボトルと、
該外殻ボトルの前記外口部内に配設される円筒状の内口部と、該内口部に連接し該外殻ボトルの内面形状に沿う形状であって外圧により変形する内容器体本体とを有する合成樹脂製の内容器体と、
前記外口部と前記内口部との間に形成されて前記外殻ボトルと前記内容器体との間に外気を導入する通気路と、
を備える合成樹脂製多重ボトルであって、
前記内口部の内周面に、前記内口部の開口端の内径よりも小径の小径部を設けたことを特徴とする。
2 外殻ボトル
3 内容器体
4 外口部
5 肩部
6 胴部
7 底部
8 凹部
9 接地部
10 雄ねじ部
11 サポートリング
12 四角錐状部
13 胴部上部
14 縦リブ
15 四角錐状部
16 胴部下部
17 内口部
18 内容器体本体
19 延出部
20 鍔部
21 縦溝
22 横溝
23 通気路
24 小径部
25 上側傾斜面
26 下側傾斜面
27 離隔部
28 上端接触部
29 下端接触部
Claims (4)
- 円筒状の外口部と、該外口部に連接する肩部と、該肩部に連接する胴部と、該胴部に連接する底部とを有し、外圧に対して原形復帰可能である合成樹脂製の外殻ボトルと、
該外殻ボトルの前記外口部内に配設される円筒状の内口部と、該内口部に連接し該外殻ボトルの内面形状に沿う形状であって外圧により変形する内容器体本体とを有する合成樹脂製の内容器体と、
前記外口部と前記内口部との間に形成されて前記外殻ボトルと前記内容器体との間に外気を導入する通気路と、
を備える合成樹脂製多重ボトルであって、
前記内口部の内周面に、前記内口部の開口端の内径よりも小径の小径部を設けたことを特徴とする合成樹脂製多重ボトル。 - 請求項1に記載の合成樹脂製多重ボトルであって、
前記内口部の上端部外周面であって、前記通気路を形成する部分を除いて少なくとも一部は、前記外口部の内周面に接触する上端接触部であり、
前記内口部の外周面であって前記上端接触部の下方には、前記小径部に対応する領域に位置させて、前記外口部の内周面から離隔する離隔部が設けられ、
前記離隔部は、前記上端接触部の前記通気路よりも径方向内側へ離隔して隙間を形成することを特徴とする合成樹脂製多重ボトル。 - 請求項2に記載の合成樹脂製多重ボトルであって、
前記内口部の下端部外周面であって、前記通気路を形成する部分を除いて少なくとも一部は、前記外口部の内周面に接触する下端接触部であることを特徴とする合成樹脂製多重ボトル。 - 請求項1に記載の合成樹脂製多重ボトルであって、
前記内口部の下端部外周面であって、前記通気路を形成する部分を除いて少なくとも一部は、前記外口部の内周面に接触する下端接触部であることを特徴とする合成樹脂製多重ボトル。
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CN201880072155.2A CN111344233B (zh) | 2017-11-08 | 2018-10-12 | 合成树脂制多重容器 |
JP2019552679A JP7289790B2 (ja) | 2017-11-08 | 2018-10-12 | 合成樹脂製多重ボトル |
US16/652,807 US11312523B2 (en) | 2017-11-08 | 2018-10-12 | Synthetic resin-made multilayer container |
ES18876376T ES2949403T3 (es) | 2017-11-08 | 2018-10-12 | Recipiente multicapa hecho de resina sintética |
KR1020207013172A KR102612382B1 (ko) | 2017-11-08 | 2018-10-12 | 합성수지제 다중 용기 |
CA3082068A CA3082068A1 (en) | 2017-11-08 | 2018-10-12 | Synthetic resin-made multilayer container |
EP18876376.7A EP3708517B1 (en) | 2017-11-08 | 2018-10-12 | Synthetic resin-made multilayer container |
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TW201925039A (zh) | 2019-07-01 |
US20200231321A1 (en) | 2020-07-23 |
JP7289790B2 (ja) | 2023-06-12 |
EP3708517A4 (en) | 2021-08-25 |
TWI753212B (zh) | 2022-01-21 |
EP3708517C0 (en) | 2023-06-07 |
EP3708517B1 (en) | 2023-06-07 |
CN111344233B (zh) | 2022-06-17 |
JPWO2019093068A1 (ja) | 2020-11-12 |
US11312523B2 (en) | 2022-04-26 |
EP3708517A1 (en) | 2020-09-16 |
CN111344233A (zh) | 2020-06-26 |
KR20200078528A (ko) | 2020-07-01 |
KR102612382B1 (ko) | 2023-12-12 |
ES2949403T3 (es) | 2023-09-28 |
CA3082068A1 (en) | 2019-05-16 |
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