WO2019172267A1 - 容器 - Google Patents
容器 Download PDFInfo
- Publication number
- WO2019172267A1 WO2019172267A1 PCT/JP2019/008679 JP2019008679W WO2019172267A1 WO 2019172267 A1 WO2019172267 A1 WO 2019172267A1 JP 2019008679 W JP2019008679 W JP 2019008679W WO 2019172267 A1 WO2019172267 A1 WO 2019172267A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- container
- reinforcing
- section
- main body
- grounding
- 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.)
- Ceased
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D79/00—Kinds or details of packages, not otherwise provided for
- B65D79/005—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting
- B65D79/008—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting the deformable part being located in a rigid or semi-rigid container, e.g. in bottles or jars
- B65D79/0081—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting the deformable part being located in a rigid or semi-rigid container, e.g. in bottles or jars in the bottom part thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
- B65D1/02—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—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
- B65D1/02—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
- B65D1/02—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
- B65D1/0261—Bottom construction
- B65D1/0276—Bottom construction having a continuous contact surface, e.g. Champagne-type bottom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
- B65D1/10—Jars, e.g. for preserving foodstuffs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
- B65D1/40—Details of walls
- B65D1/42—Reinforcing or strengthening parts or members
-
- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/0009—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
- B65D2501/0018—Ribs
- B65D2501/0036—Hollow circonferential ribs
-
- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/0009—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
- B65D2501/0018—Ribs
- B65D2501/0045—Solid ribs
Definitions
- the present invention relates to a resin container having heat resistance.
- PET containers are excellent in transparency, toughness, hygiene, etc., and are used as containers for various contents. In particular, it is now widely used as a container for storing liquid materials such as beverages.
- a heat-resistant container which is one of PET containers, can be filled with these foods and beverages that have been heated to high temperatures for sterilization.
- the contents sterilized by heating at a high temperature of about 90 ° C. may be filled at the high temperature, sealed with a lid, and then cooled.
- the inside of the container becomes a reduced-pressure atmosphere, and there is a risk that irregular deformation will occur in the body.
- Irregular deformation of the body part can be suppressed by intentionally providing a part of the body part of the container with an uneven part that is deformed in accordance with decompression.
- the attachment surface of the product label becomes uneven, which is not preferable.
- the bottom surface of the bottom portion of the synthetic resin housing has a recessed portion formed by recessed the bottom wall in the interior direction of the housing so that the housing can be deformed in the interior direction during decompression ( Patent Document 1).
- Patent Document 1 a structure on the bottom surface of the container for absorbing deformation due to decompression inside the container.
- contents to be filled in the container are not suitable for filling at a high temperature as described above.
- the content is food such as pickles
- the quality of the content may be deteriorated if it is pasteurized at a high temperature before filling.
- filling the contents into the container before high-temperature sterilization and sealing the container, and then sterilizing the contents together with the container under high-temperature conditions can suppress deterioration in the quality of the contents. it can.
- the container when the contents are sterilized at a high temperature together with the container in this way, the container may be deformed due to an increase in the internal pressure of the container as the temperature of the contents rises.
- the container (housing) described in Patent Document 1 is not deformed in the inner direction of the enclosure when the internal pressure of the enclosure (container) changes from the normal pressure state to the reduced pressure state (negative pressure).
- the deformation of the housing (bottom) when the internal pressure is changed from the normal pressure state to the pressurized state (positive pressure) is not considered.
- the thickness of the bottom of the container is reduced to facilitate the deformation of the container bottom.
- the thickness of the bottom of the container is made thin and the rigidity of the bottom becomes too low, the container bottom may be deformed more than necessary due to an increase in the internal pressure of the container.
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide a container that can maintain a good aesthetic appearance by suppressing deformation of the bottom portion that occurs due to internal pressure fluctuations.
- One aspect of the present invention for solving the above problems is a resin container having an opening neck, a cylindrical body, and a bottom for sealing one end of the body,
- the bottom portion includes a grounding portion provided on an outer peripheral portion of the trunk portion, and a raised bottom portion that is provided inside the grounding portion and deforms according to a change in internal pressure, and the raised bottom portion is provided in a central portion.
- a connecting portion that connects the upper surface portion and the grounding portion, and at least the connecting portion of the bottom portion is provided with a reinforcing portion that extends in a radial direction of the bottom portion and reinforces the bottom portion. It is in the container characterized by this.
- the rigidity of the raised bottom portion, particularly the connecting portion is enhanced by the reinforcing portion. Therefore, by providing the reinforcing portion in a predetermined shape, the shape of the bottom portion including the raised bottom portion is appropriately maintained even when the pressure fluctuation in the container occurs.
- connection portion is formed such that an end portion on the upper surface portion side is located closer to the neck portion side than an end portion on the ground contact portion side in a state where the internal pressure is normal pressure. . Thereby, even when the internal pressure of a container rises, the shape of the bottom part including a raise bottom part is maintained more appropriately.
- the reinforcing portion is a rib protruding from the inner surface of the bottom portion. Therefore, the rigidity of a bottom part can be raised appropriately and a favorable external appearance can be maintained.
- a plurality of the reinforcing portions are provided radially on the bottom portion from the central portion toward the outer peripheral portion.
- the reinforcing portion includes a main body provided in the connecting portion, a first extending portion extending continuously from the main body portion to the upper surface portion, and a second extending continuously from the main body portion to the grounding portion. It is preferable to have this extending part.
- the thickness of the first extending portion and the second extending portion is thinner than the thickness of the main body portion.
- the width of the first extending portion and the second extending portion is narrower than the width of the main body portion.
- the shape of the bottom portion including the raised bottom portion can be more appropriately maintained when the pressure fluctuation in the container occurs.
- the container according to the present invention even when an internal pressure fluctuation (for example, pressure increase) occurs, the rigidity of the bottom including the raised bottom is increased, so that deformation of the bottom is suppressed. Is done. For example, even when the contents are sterilized with the container at high temperature, pressure fluctuations in the container occur with changes in the temperature of the contents, but also at that time, the deformation of the bottom due to fluctuations in the internal pressure is effectively suppressed. can do.
- an internal pressure fluctuation for example, pressure increase
- pressure fluctuations in the container occur with changes in the temperature of the contents, but also at that time, the deformation of the bottom due to fluctuations in the internal pressure is effectively suppressed. can do.
- FIG. 1 It is a front view of the container which concerns on Embodiment 1 of this invention. It is a figure which shows the bottom part of the container which concerns on Embodiment 1 of this invention. It is a figure which shows the bottom part of the container which concerns on Embodiment 1 of this invention. It is an enlarged view which shows the bottom part of the container which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the reinforcement part which concerns on Embodiment 1 of this invention. It is a figure explaining the deformation
- FIG. 1 is a front view of a container according to Embodiment 1 of the present invention, and FIG. 3 and 4 are views showing the shape of the bottom of the container, FIG. 3 is a cross-sectional view taken along the line BB ′ of FIG. 2, and FIG. 4 is a partially enlarged cross-sectional view.
- FIG. 5 is a cross-sectional view showing the reinforcing portion according to the first embodiment of the present invention, and is a cross-sectional view taken along the line CC ′ of FIG.
- a container (heat-resistant container) 10 includes a cylindrical neck portion 12 having a wide opening 11 on one end side (upper end side), and a cylindrical trunk connected to the neck portion 12. A portion 13 and a bottom portion 14 continuing from the body portion 13.
- the container 10 is a resin container such as polyethylene terephthalate (PET), and is filled with food such as pickles (including liquid) as contents.
- PET polyethylene terephthalate
- drum 13 is formed in about 70 mm.
- the neck portion 12 is formed with a screw portion 15 into which a cap (not shown) is screwed.
- a plurality of (for example, five) concave ribs 16 extending in the circumferential direction of the body portion 13 are provided in the body portion 13 in the height direction of the body portion 13, thereby increasing the rigidity of the body portion 13. .
- the container 10 is formed by biaxially stretching and blowing a preform. That is, the container 10 is formed by biaxially stretching and blowing a portion other than the neck portion 12. And parts other than the neck part 12 of the container 10 are provided with high heat resistance by the crystallization by the heat set and the action of removing internal stress. Further, it is desirable that the neck portion 12 is also crystallized white to impart heat resistance.
- the bottom portion 14 that closes the bottom of the trunk portion 13 includes a raised bottom portion 17 in which a central portion of the trunk portion 13 is recessed inward, and a grounding portion 18 provided on an outer peripheral portion of the raised bottom portion 17.
- the raised bottom portion 17 refers to a portion provided by closing the center side of the body portion 13 from the rising portion 19 constituting the inner surface of the grounding portion 18.
- the grounding portion 18 is a portion where a grounding surface 18a for grounding the container 10 when the container 10 is placed on a table, for example, with the opening 11 facing upward, is formed from the rising portion 19 in this embodiment.
- the outer part is a portion where a grounding surface 18a for grounding the container 10 when the container 10 is placed on a table, for example, with the opening 11 facing upward, is formed from the rising portion 19 in this embodiment.
- the rising portion 19 is configured to be slightly inclined inward with respect to the surface of the table in a state where the container 10 is placed on the table. That is, the rising portion 19 is configured to be slightly inclined inward with respect to the ground surface 18a of the ground portion 18, and does not stand vertically with respect to the ground surface 18a.
- the raised bottom portion 17 includes an upper surface portion 20 provided at the center of the bottom portion 14 and a connecting portion 21 that connects the upper surface portion 20 and the rising portion 19.
- the upper surface part 20 is a part which comprises the upper surface of the raising bottom part 17, and in this embodiment, the recessed part 20a slightly depressed in the center part is formed.
- the connecting portion 21 is formed in a curved surface in which the outer side of the container 10 is convex in a state where the internal pressure is normal pressure (substantially atmospheric pressure). Furthermore, in the state where the internal pressure of the container 10 is normal pressure, the connecting portion 21 is such that the end on the upper surface portion 20 side is closer to the neck portion 12 side than the end portion on the grounding portion 18 side (inside the trunk portion 13: in FIG. It is formed so as to be located on the upper side.
- the second corner portion 23 formed by the connecting portion 21 and the upper surface portion 20 is formed by the connecting portion 21 and the rising portion 19. It is located closer to the neck portion 12 than the corner portion 22 (inner side of the body portion 13: upper side in FIG. 3). For this reason, the straight line L1 connecting the first corner portion 22 and the second corner portion 23 is inclined at a predetermined angle ⁇ a with respect to the straight line L2 extended from the ground surface 18a of the ground portion 18.
- the angle ⁇ ⁇ b> 1 of the first corner portion 22 formed by the connecting portion 21 and the rising portion 19 is the same as that of the second corner portion 23 formed by the connecting portion 21 and the upper surface portion 20. It is smaller than the angle ⁇ 2.
- the first corner portion 22 is formed with a recess portion 22a in which a part (mainly the connecting portion 21) is recessed inside the container 10, and as a result, the first corner portion 22 is formed.
- the angle ⁇ 1 of 22 is smaller than the angle ⁇ 2 of the second corner portion 23. Thereby, the first corner portion 22 is more easily bent than the second corner portion 23.
- the hollow part 22a does not necessarily need to be provided.
- the angle ⁇ a of the straight line L1 with respect to the straight line L2, the angle ⁇ 1 of the first corner 22 and the angle ⁇ 2 of the second corner 23 are ⁇ a ⁇ 1 ⁇ when the internal pressure of the container 10 is normal pressure. It is preferable that the relationship of ⁇ 2 is satisfied.
- At least the connecting portion 21 of the raised bottom portion 17 constituting the bottom portion 14 is formed with a reinforcing portion 24 that extends in the radial direction of the bottom portion 14 and reinforces the bottom portion 14.
- the reinforcing portion 24 is formed of a rib that protrudes from the inner surface of the bottom portion 14 and enhances the rigidity of the bottom portion 14.
- the shape and arrangement of the reinforcing portion 24 are not particularly limited.
- the bottom portion 14 includes a plurality of reinforcing portions 24, which are ribs protruding from the inner surface, radially from the center portion of the bottom portion 14 (45 in this embodiment). 8) at intervals of degrees.
- the number of reinforcing portions 24 is not particularly limited, and may be 7 or less or 9 or more.
- the raised bottom portion 17 is formed to have substantially the same thickness d1 except for the reinforcing portion 24 (see FIG. 5), and the reinforcement portion 24 is provided so that each portion of the raised bottom portion 17 is appropriate. It is formed in a predetermined shape so as to have a sufficient rigidity.
- the outer wall surface 21 a of the connecting portion 21 constituting the raised bottom portion 17 is flush with the cross section (CC ′ cross section) orthogonal to the extending direction of the reinforcing portion 24.
- the inner wall surface 21b of the connecting portion 21 is an uneven surface because a plurality of reinforcing portions 24 are provided. That is, the portion where the reinforcing portion 24 is provided is convex, and the portion where the reinforcing portion 24 is not provided is concave. In other words, the portion of the connecting portion 21 where the reinforcing portion 24 is provided is thicker than the portion where the reinforcing portion 24 is not provided.
- Each of such reinforcing portions 24 is formed to have a predetermined thickness d2 and a predetermined width w1 set in advance so that the connecting portion 21 has appropriate rigidity.
- the thickness d1 of the connecting portion 21 is about 0.4 mm to 0.5 mm
- the thickness d2 of each reinforcing portion 24 is 0.5 mm to 1.
- the width w1 is about 1.5 mm to 2.0 mm.
- each reinforcing portion 24 is continuously provided from the connecting portion 21 to the first corner portion 22 and the second corner portion 23. That is, each reinforcement part 24 is continuously formed from the connection part 21 to the upper surface part 20 and a part of the grounding part 18 (rise part 19).
- the reinforcing portion 24 includes the main body portion 25 provided in the connecting portion 21, the first extending portion 26 extending continuously from the main body portion 25 to the upper surface portion 20, and the grounding portion 18 continuously from the main body portion 25. And a second extending portion 27 extending to the (rising portion 19).
- the rigidity of the raised bottom portion 17 is appropriately adjusted by providing the reinforcing portion 24 having a predetermined shape on the bottom portion 14 of the container 10. Therefore, in the container 10 according to the present embodiment, for example, when a pressure fluctuation in the container 10 occurs (for example, when the internal pressure increases), the raised bottom portion 17 undergoes bulging deformation (inversion deformation), irregular deformation, or the like. The bottom portion 14 of the container 10 is appropriately deformed. Accordingly, it is possible to maintain a good aesthetic appearance of the container 10.
- each reinforcing portion 24 is continuously formed from the connecting portion 21 to the upper surface portion 20 and a part of the grounding portion 18 (rise portion 19). That is, each reinforcing portion 24 includes a main body portion 25, and a first extending portion 26 and a second extending portion 27 that are continuous from the main body portion 25.
- the rigidity of the first corner portion 22 is increased, it is relatively slightly lower than the rigidity of the connecting portion 21. Since the reinforcement part 24 is provided radially from the center part, the space
- the raised bottom portion 17 mainly deforms the first corner portion 22 and the deformation amount of the second corner portion 23 is extremely small. . That is, the amount of deformation of the connecting portion 21 and the upper surface portion 20 is extremely small (not substantially deformed). Accordingly, it is possible to maintain a good aesthetic appearance of the container 10.
- the reinforcing portion 24 is formed with substantially the same thickness over the length direction, but the thickness of the reinforcing portion 24 is not particularly limited.
- the thickness of the first extension part 26 and the second extension part 27 may be smaller than the thickness of the main body part 25.
- the ribs constituting the reinforcing portion 24 are provided on the inner surface of the container 10 (bottom portion 14). That is, it is preferable that the reinforcing portion 24 is not provided on the outer surface of the container 10. Thereby, the aesthetic appearance of the container 10 can be further improved. Furthermore, the moldability of the container 10 can also be improved.
- the container 10 when filling a container 10 with foods such as pickles (including liquids), the container 10 is filled with contents whose temperature is controlled at about 10 ° C. to 40 ° C. in order to prevent deterioration in quality.
- the opening 11 is sealed with a cap (not shown).
- the container 10 is heated with a high-temperature medium of, for example, about 85 ° C. to 95 ° C. for a predetermined time (about 30 minutes) to sterilize the contents together with the inside of the container 10 (including the inner surface area of the cap). is there.
- a high-temperature medium for example, about 85 ° C. to 95 ° C. for a predetermined time (about 30 minutes) to sterilize the contents together with the inside of the container 10 (including the inner surface area of the cap).
- the rigidity of the first corner portion 22 is slightly lower than the rigidity of the connecting portion 21 by providing the reinforcing portion 24 as described above. For this reason, when the internal pressure of the container 10 rises, for example, as shown in FIG. 6, the raised bottom portion 17 is displaced to the outside (lower side in the figure) of the container 10 mainly from the first corner 22. The deformation amount of the connecting portion 21 and the upper surface portion 20 is small.
- the raised bottom portion 17 is slightly deformed, so that the increase of the internal pressure of the container 10 is suppressed (preferably absorbed).
- the deformation amount of the connecting portion 21 and the upper surface portion 20 at that time is small, the aesthetic appearance of the container 10 can be maintained well.
- the second corner portion 23 is located on the inner side (neck portion 12 side) of the container 10 than the first corner portion 22. ing. That is, the connecting portion 21 constituting the raised bottom portion 17 is provided to be inclined at a predetermined angle ⁇ with respect to the ground contact surface 18a. For this reason, the raised bottom portion 17 is more likely to be deformed with the first corner portion 22 as a base point.
- the connecting portion 21 is formed in a curved surface in which the outer side of the container 10 is convex in a state where the internal pressure is normal pressure.
- the raised bottom portion 17 is difficult to deform, and deformation of the raised bottom portion 17 is suppressed even when the internal pressure of the container 10 rises. Therefore, the aesthetic appearance of the container 10 can be maintained well.
- the container 10 is cooled to room temperature.
- the internal pressure of the container 10 is reduced to a normal pressure (approximately atmospheric pressure).
- a normal pressure approximately atmospheric pressure
- the bottom portion 14 of the container 10 maintains the peak pressure for a predetermined time by fluctuation in the internal pressure of the container 10 (specifically, the pressure rises from the normal pressure by the high temperature sterilization treatment after sealing). Then, it has a function that can withstand and maintain its shape suitably for the transition of internal pressure such that the pressure then drops.
- the shape and size of the reinforcing portion 24 provided on the bottom portion 14 are not particularly limited, and each portion of the bottom portion 14 (particularly, the connecting portion 21, the first corner portion 22, and the second corner portion 23). ) May be appropriately determined so as to have a desired rigidity.
- the reinforcing part 24 may be provided only in the connecting part 21. That is, the reinforcement part 24 may be comprised only by the main-body part 25. FIG.
- FIG. 8 is a cross-sectional view showing the reinforcing portion according to the second embodiment
- FIG. 8A is a cross-sectional view taken along the line DD ′ of FIG.
- FIG. 8B is a cross-sectional view taken along the line EE ′ of FIG.
- the main body portion 25 constituting each reinforcing portion 24 is formed with a predetermined width w ⁇ b> 2 that is set in advance so that the connecting portion 21 has appropriate rigidity. Yes.
- the first extending portion 26 has a narrower width (predetermined predetermined width w3) than the main body portion 25 and is provided in a portion corresponding to the first corner portion 22 continuously from the main body portion 25. That is, the first extending portion 26 is provided with a length that reaches the rising portion 19 from the connecting portion 21.
- the second extending portion 27 has a narrower width (predetermined predetermined width w ⁇ b> 3) than the main body portion 25 and continues from the main body portion 25 to the second corner portion. 23 is provided at a portion corresponding to 23. That is, the second extending portion 27 is provided with a length that reaches the upper surface portion 20 from the connecting portion 21.
- the main body portion 25 of the reinforcing portion 24 is provided with a length that does not reach the first corner portion 22 and the second corner portion 23. That is, the first corner portion 22 and the second corner portion 23 are not provided with the main body portion 25 that is wider than the first extension portion 26 and the second extension portion 27.
- the first extending portion 26 and the second extending portion 27 are formed with a width w3 that is about 1 ⁇ 2 of the main body portion 25.
- the first extending portion 26 and the second extending portion 27 are formed with the same width w3, but the widths of the first extending portion 26 and the second extending portion 27 are not necessarily one. You don't have to.
- the first extending portion 26 and the second extending portion 27 may be provided as necessary, and only one of them may be provided or may not be provided.
- the main body portion 25 is formed with a predetermined thickness d3 set in advance, and the thickness (height) of the first extending portion 26 and the second extending portion 27 is the main body portion. It is formed with the same thickness d3 as the portion 25.
- the thicknesses of the first extension part 26 and the second extension part 27 may be determined as appropriate, and may be made thinner than the thickness d3 of the main body part 25.
- the portion of the raised bottom portion 17 excluding the reinforcing portion 24 is formed to have a substantially uniform thickness with the grounding portion 18, but the thickness of the raised bottom portion 17 excluding the reinforcing portion 24 is particularly limited. It is not a thing.
- the raised bottom portion 17 may be formed slightly thinner than the ground contact portion 18.
- the bottom portion 14 of the container 10 has the main body portion 25 having the predetermined width w2, the first extending portion 26 and the second extending portion 27 having the width w3 narrower than the main body portion 25, and Is provided, the rigidity of the raised bottom portion 17 can be adjusted appropriately.
- the rigidity of the connecting portion 21 is sufficiently increased by providing the main body portion 25 having a predetermined width w2 (> w3).
- the first corner 22 and the second corner 23 are provided with a predetermined width w3 ( ⁇ w2), so that the first corner 22 and the second corner 23 are rigid. Is not excessively increased, and has appropriate rigidity.
- variation of an internal pressure can be suppressed, and the maintenance of favorable aesthetics can be aimed at. Specifically, bulging deformation (inversion deformation) and irregular deformation of the raised bottom portion 17 due to fluctuations in internal pressure can be suppressed.
- the bottom portion 14 of the container 10 maintains the peak pressure for a predetermined time by fluctuation in the internal pressure of the container 10 (specifically, the pressure rises from the normal pressure by the high temperature sterilization after sealing).
- the pressure rises from the normal pressure by the high temperature sterilization after sealing.
- it has a function capable of withstanding and maintaining a suitable shape for the transition of the internal pressure such that the pressure then drops.
- the shape and size of the reinforcing portion 24 provided on the bottom portion 14 are not particularly limited, and each portion of the bottom portion 14 (particularly, the connecting portion 21, the first corner portion 22 and the first portion).
- the two corners 23) may be appropriately determined so as to have a desired rigidity.
- the main body portion 25 constituting the reinforcing portion 24 is formed with a constant width, but the width of the main body portion 25 does not need to be constant.
- the width w4 on the first extending portion 26 side (grounding portion 18 side) of the main body 25 is wider than the width w5 on the second extending portion 27 side (upper surface portion 20 side). It may be made to become. In this case, it is preferable that the width of the main body 25 is gradually increased toward the first extending portion 26 side.
- the height of the main body 25 on the first extending portion 26 side is higher than the height of the second extending portion 27 side (upper surface portion 20 side). You may make it high. Also in this case, it is preferable that the height of the main body 25 is gradually increased toward the first extending portion 26 side.
- the rigidity of the connecting portion 21 can be appropriately increased and the rigidity can be made more uniform, and deformation caused by fluctuations in the internal pressure of the container 10 can be effectively suppressed. can do.
- the height of the rising portion 19 constituting the grounding portion 18 is not particularly limited, but is preferably set as low as possible in order to ensure the rigidity of the raised bottom portion 17 when an internal pressure fluctuation occurs. Specifically, it is preferable to set the height so that the first corner portion 22 can be sufficiently formed when the internal pressure of the container 10 increases.
- the manufacturing method of the container 10 provided with the above-mentioned reinforcement part 24 is not specifically limited, Any molding method of what is called a cold parison system or a hot parison system is employable. However, it is preferable to change the shape of the preform depending on which molding method is adopted.
- the reinforcing part 24 can be formed relatively easily by forming the preform 100 by biaxial stretch blow molding into the container 10.
- a recess 102 having a part of the inner surface recessed is provided at the bottom of the preform 100 at a portion serving as the reinforcing portion 24 as shown in FIG. It is preferable. Since the portion corresponding to the recess 102 of the preform 100 is thinner than the other portions, the retained heat tends to be low. For this reason, the portion corresponding to the recess 102 of the preform 100 is likely to remain thicker than the other portions even after the biaxial stretch blow. Therefore, the reinforcing part 24 can be formed relatively easily by forming the preform 100 by biaxial stretch blow molding into the container 10.
- the present invention also applies to a case where the internal pressure has decreased to a negative pressure. The same effect is produced.
- the reinforcing portion that is a rib is provided to protrude on the inner surface of the raised bottom portion.
- the reinforcing portion may be provided on the outer surface of the raised bottom portion.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Food Science & Technology (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
Description
図1は、本発明の実施形態1に係る容器の正面図であり、図2は、容器の底面を示す図であり、図1のA-A′断面図である。また図3及び図4は、容器の底部の形状を示す図であり、図3は図2のB-B′断面図であり、図4はその一部を拡大した断面図である。図5は、本発明の実施形態1に係る補強部を示す断面図であり、図2のC-C′断面図である。
図7は、実施形態2に係る容器の底部を示す図であり、図8は、実施形態2に係る補強部を示す断面図であり、図8(a)は図7のD-D′断面図であり、図8(b)は図7のE-E′断面図である。
11 開口
12 ネック部
13 胴部
14 底部
15 ネジ部
16 凹状リブ
17 上げ底部
18 接地部
18a 接地面
19 立ち上がり部
20 上面部
20a 凹状部
21 連結部
22 第1の角部
22a 窪み部
23 第2の角部
24 補強部
25 本体部
26 第1の延設部
27 第2の延設部
100 プリフォーム
101 凸部
102 凹部
Claims (7)
- 開口するネック部と、筒状の胴部と、該胴部の一端側を封止する底部と、を有する樹脂製の容器であって、
前記底部は、前記胴部の外周部に設けられる接地部と、前記接地部の内側に設けられ内圧の変化に応じて変形する上げ底部と、を有し、
前記上げ底部は、中央部に設けられる上面部と、該上面部と前記接地部とを繋ぐ連結部とを備え、
前記底部の少なくとも前記連結部には、前記底部の径方向に延びて当該底部を補強する補強部が設けられている
ことを特徴とする容器。 - 請求項1に記載の容器であって、
前記連結部は、内圧が常圧である状態で、前記上面部側の端部が前記接地部側の端部よりも前記ネック部側に位置するように形成されている
ことを特徴とする容器。 - 請求項1又は2に記載の容器であって、
前記補強部が、前記底部の内面に突出するリブである
ことを特徴とする容器。 - 請求項1~3の何れか一項に記載の容器であって、
前記底部には、複数本の前記補強部が中心部から外周部に向かって放射状に設けられている
ことを特徴とする容器。 - 請求項1~4の何れか一項に記載の容器であって、
前記補強部は、前記連結部に設けられる本体部と、前記本体部から連続して前記上面部まで延びる第1の延設部と、前記本体部から連続して前記接地部まで延びる第2の延設部と、を有する
ことを特徴とする容器。 - 請求項5に記載の容器であって、
前記第1の延設部及び前記第2の延設部の厚さが、前記本体部の厚さよりも薄い
ことを特徴とする容器。 - 請求項5又は6に記載の容器であって、
前記第1の延設部及び前記第2の延設部の幅が、前記本体部の幅よりも狭い
ことを特徴とする容器。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020505052A JP7295842B2 (ja) | 2018-03-05 | 2019-03-05 | 容器 |
| CN201980025855.0A CN112004751B (zh) | 2018-03-05 | 2019-03-05 | 容器 |
| EP19764407.3A EP3763628B1 (en) | 2018-03-05 | 2019-03-05 | Container |
| US16/977,733 US11352184B2 (en) | 2018-03-05 | 2019-03-05 | Container |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-039065 | 2018-03-05 | ||
| JP2018039065 | 2018-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2019172267A1 true WO2019172267A1 (ja) | 2019-09-12 |
Family
ID=67847206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2019/008679 Ceased WO2019172267A1 (ja) | 2018-03-05 | 2019-03-05 | 容器 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11352184B2 (ja) |
| EP (1) | EP3763628B1 (ja) |
| JP (1) | JP7295842B2 (ja) |
| CN (1) | CN112004751B (ja) |
| WO (1) | WO2019172267A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024541632A (ja) * | 2021-11-30 | 2024-11-08 | ペプシコ・インク | 無菌充填ボトルのための可撓性基部 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI130012B (en) * | 2018-08-29 | 2022-12-30 | Ponsse Oyj | Determination of a condition of a structural part in a working machine |
| USD932898S1 (en) * | 2019-03-29 | 2021-10-12 | Ring Container Technologies, Llc | Container |
| DE102023124507A1 (de) | 2023-09-12 | 2025-03-13 | Khs Gmbh | Vorformling oder Behälter aus einem thermoplastischen Material und Verfahren zum Erhöhen einer Kristallinität des thermoplastischen Materials |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5316940B2 (ja) | 1973-11-05 | 1978-06-05 | ||
| JPS5564039A (en) * | 1978-11-07 | 1980-05-14 | Yoshino Kogyosho Co Ltd | Bottle made of saturated polyester resin and having small thickness but large size |
| JPH0314618B2 (ja) | 1979-11-27 | 1991-02-27 | Continental Group | |
| JP2010535137A (ja) * | 2007-07-30 | 2010-11-18 | シデル パーティシペイションズ | 変形可能な膜を具備する底部を備える容器 |
| JP2016506895A (ja) * | 2013-01-15 | 2016-03-07 | グレイアム パッケイジング カンパニー リミテッド パートナーシップ | 可変押しのけ量容器底部 |
| WO2016121890A1 (ja) * | 2015-01-29 | 2016-08-04 | 東洋製罐株式会社 | 合成樹脂製容器 |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2034663B (en) | 1978-11-07 | 1983-09-01 | Yoshino Kogyosho Co Ltd | Synthetic resin thin-walled bottle |
| US4525401A (en) | 1979-11-30 | 1985-06-25 | The Continental Group, Inc. | Plastic container with internal rib reinforced bottom |
| US4334627A (en) | 1979-11-27 | 1982-06-15 | The Continental Group, Inc. | Blow molded plastic bottle |
| US4261948A (en) | 1979-11-27 | 1981-04-14 | The Continental Group, Inc. | Method of increasing the wall thickness of a bottom structure of a blown plastic material container |
| AU544312B2 (en) | 1979-11-27 | 1985-05-23 | Continental Group Inc., The | Plastic container |
| US4603831A (en) | 1979-11-27 | 1986-08-05 | The Continental Group, Inc. | Mold core member for use in a mold unit for injection molding a plastic material preform for a blow molded container |
| JPH086212B2 (ja) | 1989-06-09 | 1996-01-24 | 帝人株式会社 | ポリフェニレンスルフィド短繊維 |
| JP2004217265A (ja) * | 2003-01-15 | 2004-08-05 | Dainippon Printing Co Ltd | 包装容器 |
| JP4725889B2 (ja) | 2006-03-31 | 2011-07-13 | 株式会社吉野工業所 | 合成樹脂製壜体 |
| JP5344118B2 (ja) * | 2008-03-04 | 2013-11-20 | 東洋製罐株式会社 | プラスチックボトル |
| US8590729B2 (en) * | 2008-03-27 | 2013-11-26 | Constar International Llc | Container base having volume absorption panel |
| CN101939226B (zh) | 2008-11-27 | 2013-12-18 | 株式会社吉野工业所 | 合成树脂制瓶体 |
| JP5316940B2 (ja) | 2008-11-27 | 2013-10-16 | 株式会社吉野工業所 | 合成樹脂製壜体 |
| WO2012002164A1 (ja) * | 2010-06-28 | 2012-01-05 | 日精エー・エス・ビー機械株式会社 | 耐熱容器の製造方法 |
| JP5408501B2 (ja) | 2010-08-31 | 2014-02-05 | 株式会社吉野工業所 | 合成樹脂製壜体 |
| US10513364B2 (en) | 2013-01-15 | 2019-12-24 | Graham Packaging Company, L.P. | Variable displacement container base |
| MX2016010618A (es) | 2014-02-20 | 2017-04-27 | Amcor Ltd | Base de vacio para recipiente. |
| MX379040B (es) | 2014-10-17 | 2025-03-10 | Amcor Rigid Plastics Usa Llc | Base de recipiente de funcion multiple. |
| JP6691655B2 (ja) * | 2015-01-29 | 2020-05-13 | 東洋製罐株式会社 | 合成樹脂製容器 |
| CN206634327U (zh) * | 2017-03-10 | 2017-11-14 | 道道全重庆粮油有限责任公司 | 一种食用油瓶 |
-
2019
- 2019-03-05 WO PCT/JP2019/008679 patent/WO2019172267A1/ja not_active Ceased
- 2019-03-05 JP JP2020505052A patent/JP7295842B2/ja active Active
- 2019-03-05 US US16/977,733 patent/US11352184B2/en active Active
- 2019-03-05 EP EP19764407.3A patent/EP3763628B1/en active Active
- 2019-03-05 CN CN201980025855.0A patent/CN112004751B/zh active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5316940B2 (ja) | 1973-11-05 | 1978-06-05 | ||
| JPS5564039A (en) * | 1978-11-07 | 1980-05-14 | Yoshino Kogyosho Co Ltd | Bottle made of saturated polyester resin and having small thickness but large size |
| JPH0314618B2 (ja) | 1979-11-27 | 1991-02-27 | Continental Group | |
| JP2010535137A (ja) * | 2007-07-30 | 2010-11-18 | シデル パーティシペイションズ | 変形可能な膜を具備する底部を備える容器 |
| JP2016506895A (ja) * | 2013-01-15 | 2016-03-07 | グレイアム パッケイジング カンパニー リミテッド パートナーシップ | 可変押しのけ量容器底部 |
| WO2016121890A1 (ja) * | 2015-01-29 | 2016-08-04 | 東洋製罐株式会社 | 合成樹脂製容器 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3763628A4 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024541632A (ja) * | 2021-11-30 | 2024-11-08 | ペプシコ・インク | 無菌充填ボトルのための可撓性基部 |
| JP7830646B2 (ja) | 2021-11-30 | 2026-03-16 | ペプシコ・インク | 無菌充填ボトルのための可撓性基部 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112004751A (zh) | 2020-11-27 |
| EP3763628B1 (en) | 2025-10-01 |
| JPWO2019172267A1 (ja) | 2021-03-11 |
| JP7295842B2 (ja) | 2023-06-21 |
| EP3763628A4 (en) | 2021-12-08 |
| US20210061534A1 (en) | 2021-03-04 |
| EP3763628C0 (en) | 2025-10-01 |
| EP3763628A1 (en) | 2021-01-13 |
| US11352184B2 (en) | 2022-06-07 |
| CN112004751B (zh) | 2022-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5595498B2 (ja) | 耐熱容器の製造方法 | |
| WO2019172267A1 (ja) | 容器 | |
| JP5019810B2 (ja) | 合成樹脂製ボトル及びその製造方法 | |
| US9834359B2 (en) | Vacuum base for container | |
| CN107531353B (zh) | 合成树脂制容器 | |
| JP7278971B2 (ja) | 容器 | |
| CN101522532A (zh) | 通过吹制或拉吹由热塑材料的预型件获得的中空主体的底部,和包括这种底部的中空主体 | |
| JP6588275B2 (ja) | 合成樹脂製容器の製造方法 | |
| JP5589535B2 (ja) | 合成樹脂製容器 | |
| JP4437313B2 (ja) | 合成樹脂製壜体 | |
| JPH0565158A (ja) | 二軸延伸ブロー成形容器 | |
| WO2007000896A1 (ja) | ポリエステル樹脂製容器及びその成形方法 | |
| JP5463503B2 (ja) | 合成樹脂製容器及びその製造方法 | |
| JP4953674B2 (ja) | 合成樹脂製ボトル | |
| JP7241456B2 (ja) | アセプティック充填用ボトル | |
| JP4679283B2 (ja) | 合成樹脂製容器の底部構造 | |
| US20210155361A1 (en) | Container for receiving liquids | |
| JP2015143125A (ja) | 合成樹脂製ボトル | |
| JP2017210264A (ja) | 樹脂製ボトル、及び、プリフォーム | |
| BR112016027349B1 (pt) | Recipiente plástico moldado por sopro biaxialmente estirado e resistente ao calor e método para moldar por sopro-duplo um recipiente de plástico resistente ao calor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19764407 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2020505052 Country of ref document: JP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2019764407 Country of ref document: EP Effective date: 20201005 |
|
| WWG | Wipo information: grant in national office |
Ref document number: 2019764407 Country of ref document: EP |