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EP4538189A1 - Harzbehälter - Google Patents

Harzbehälter Download PDF

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Publication number
EP4538189A1
EP4538189A1 EP23823849.7A EP23823849A EP4538189A1 EP 4538189 A1 EP4538189 A1 EP 4538189A1 EP 23823849 A EP23823849 A EP 23823849A EP 4538189 A1 EP4538189 A1 EP 4538189A1
Authority
EP
European Patent Office
Prior art keywords
resin container
body portion
container according
shoulder
rib
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23823849.7A
Other languages
English (en)
French (fr)
Inventor
Daisuke Ogino
Tatsuki Kado
Yoshihiro Saito
Yuichi Osumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suntory Holdings Ltd
Original Assignee
Suntory Holdings Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2022095144A external-priority patent/JP2023181800A/ja
Priority claimed from JP2022201237A external-priority patent/JP2024086216A/ja
Priority claimed from JP2022201236A external-priority patent/JP2024086215A/ja
Priority claimed from JP2022201238A external-priority patent/JP2024086217A/ja
Application filed by Suntory Holdings Ltd filed Critical Suntory Holdings Ltd
Publication of EP4538189A1 publication Critical patent/EP4538189A1/de
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/02—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
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • 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
    • B65D1/0292—Foldable bottles
    • 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
    • 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
    • B65D1/46—Local reinforcements, e.g. adjacent 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/72—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • 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
    • B65D2501/0081—Bottles of non-circular cross-section

Definitions

  • the present invention relates to a resin container.
  • Resin containers are widely used as containers for filling liquid products such as beverages and distributing and selling the liquid products.
  • Resin containers have advantages such as being lighter than other containers, being easily formed into any shape in accordance with requirements in terms of volume, design, and the like, and being easily checked for the contents when transparent and are thus used for a wide range of applications.
  • the cross-section of the specific portion has a substantially parallelogram shape, and thus the specific portion can be crushed more easily and more flatly than a container having a rectangular cross-section in the related art by applying a force so as to close the acute-angled vertices of the parallelogram. Since the specific portion becomes flat, the container can be easily folded in half in the vertical direction with the specific portion as a starting point.
  • the protruding rib having an arch shape becomes a starting point of deformation by being mountain-folded, facilitating the operation. Accordingly, the shoulder portion can be easily crushed by folding the resin container in half at the body portion such that the bottom portion enters the shoulder portion. In this way, the present invention can achieve a resin container in which the body portion of the container is easily crushed and folded.
  • This configuration does not limit the operation direction in folding in half at the body portion.
  • the recessed rib functions as a folding line for the shoulder portion, operation of crushing the shoulder portion is facilitated.
  • the first resin container according to the present invention allows, in folding the shoulder portion along the protruding rib and folding the body portion, a projecting portion having an eave shape to be formed in a region between the mouth portion and the protruding rib, allowing the bottom portion to be engaged with the projecting portion.
  • This configuration can engage the bottom portion with the shoulder portion and thus easily fix the folded state of the resin container.
  • a pair of marks are each provided at a vertex portion of the shoulder portion where no end portion of the protruding rib is disposed and at a vertex portion of the bottom portion directly below the vertex portion of the shoulder portion.
  • the body portion is preferably divided into an upper portion, the specific portion, and a lower portion in order from a side connected to the shoulder portion to a side connected to the bottom portion.
  • the container is more easily folded in half.
  • the ribs function as folding lines, and thus the lower portion can be easily crushed.
  • the cross-section of the body portion preferably has a long side and a short side distinguishable from each other.
  • This configuration can provide a container that is easier to hold than a case in which a container having the same volume is formed in another shape.
  • a second resin container according to the present invention is a resin container including a mouth portion, a shoulder portion, a body portion, and a bottom portion.
  • the body portion has a substantially polygonal column shape. At least part of the body portion is provided with a specific portion having a shape of a parallelogram whose internal angles are not right angles when two pairs of opposing sides in a cross-section of the body portion are extended.
  • the specific portion can be crushed more easily and more flatly than a container having a rectangular cross-section in the related art by applying a force so as to close the acute-angled vertices of the parallelogram. Since the specific portion becomes flat, the container can be easily folded in half in the vertical direction with the specific portion as a starting point. In this way, the present invention can achieve a resin container in which the body portion of the container is easily crushed and folded.
  • the specific portion functions as a suitable gripping position for a user to grip the container.
  • a lateral rib extending in a circumferential direction is preferably provided at the specific portion.
  • This configuration easily provides both the strength of the container during use and the ease of folding of the container after use for the specific portion.
  • a plurality of the lateral ribs are preferably provided in parallel on a pair of opposing surfaces of the specific portion.
  • This configuration is easy to further increase the strength of the surfaces on which the plurality of lateral ribs are provided in parallel.
  • the body portion includes a lower portion which is a portion between the specific portion and the bottom portion, and provided are ribs extending along boundaries connected to boundaries corresponding to acute-angled vertices of the parallelogram in the specific portion among boundaries between two surfaces in the lower portion.
  • the body portion includes an upper portion which is a portion between the specific portion and the shoulder portion, and provided is a rib extending along a boundary between the shoulder portion and the upper portion.
  • ribs extending along boundaries corresponding to acute-angled vertices of the parallelogram among boundaries between two surfaces in the specific portion.
  • the ribs function as fold lines, and thus the specific portion can be easily crushed.
  • This configuration can provide a container that is easier to hold than a case in which a container having the same volume is formed in another shape.
  • This configuration allows, in deforming the shoulder portion so as to be recessed to the inner side of the container, the protruding rib having an arch shape to become a starting point of deformation by being mountain-folded, facilitating the operation. Accordingly, the shoulder portion can be easily crushed by folding the resin container in half at the body portion such that the bottom portion enters the shoulder portion, and thus the resin container can be easily folded.
  • the protruding rib is formed as a continuous rib, the protruding rib can easily function as a starting point of deformation of the shoulder portion.
  • the protruding ribs function as folding lines in folding the resin container, the body portion is easily folded as compared with a resin container in the related art.
  • the resin container folded with the protruding ribs as folding lines can be easily flattened, which is further advantageous in suppressing the bulkiness of the container after use.
  • the body portion further includes recessed ribs extending in a circumferential direction of the body portion, and the protruding ribs intersect the recessed ribs.
  • the bottle 1 according to the present embodiment is made of polyethylene terephthalate, and is a colorless and transparent container.
  • the bottle 1 is obtained by biaxial stretch blow molding using a preform made of polyethylene terephthalate as a base material.
  • the material constituting the bottle is not limited to polyethylene terephthalate and may be polyethylene or polypropylene, for example.
  • the material may be derived from petroleum, a plantderived raw material, a recycled raw material, or the like.
  • the mouth portion 2 is an opening through which a liquid product filling inside is poured in and out, and is provided with, at the outer surface thereof, an external thread portion that is engaged with a cap (not illustrated).
  • the shoulder portion 3 is a portion where the bottle 1 is gradually expanded from the mouth portion 2 toward the body portion 4.
  • the position in the height direction at which the bottle 1 gradually expanding downward from the mouth portion 2 expands to the maximum degree is defined as the boundary between the shoulder portion 3 and the body portion 4.
  • the bottom portion 5 is a portion serving as a contact surface when the bottle 1 is placed on a surface such as a desk, and the bottle 1 also gradually expands from the bottom portion 5 toward the body portion 4.
  • the position in the height direction at which the bottle 1 gradually expanding upward from the contact surface expands to the maximum degree is defined as the boundary between the bottom portion 5 and the body portion 4.
  • the structures and functions of the mouth portion 2 and the bottom portion 5 are substantially the same as those of a mouth portion and a bottom portion of a known plastic bottle, and thus the detailed description thereof will be omitted.
  • the shoulder portion 3 has a shape continuously connecting the mouth portion 2 and the body portion 4. Since the mouth portion 2 has a shape in which the external thread portion is provided at an outer surface of a substantially cylindrical body and the body portion 4 has a substantially quadrangular prism shape, the shoulder portion 3 has a substantially circular cross-section at an upper end portion thereof and has a substantially quadrangular cross-section at a lower end portion thereof. In a plan view ( FIG. 3 ), the shape of the shoulder portion 3 appears as a substantially quadrangular shape of the lower end portion.
  • the shoulder portion 3 is provided with two protruding ribs 31 having an arch shape. Each protruding rib 31 extends continuously between two vertex portions A, A opposed to each other in the plan view. One protruding rib 31 is provided in each of two regions of the shoulder portion 3 bisected by a diagonal line L1 connecting the two vertex portions A, A.
  • protruding rib refers to a rib projecting from a surface of the bottle 1.
  • the protruding rib 31 extends obliquely upward at an angle of about 45° from an end portion located at the vertex portion A.
  • the position of the protruding rib 31 in the height direction becomes maximum in the vicinity of a diagonal line L2 connecting vertex portions B, B different from the vertex portions A, A.
  • the shoulder portion 3 By providing the protruding rib 31 at the shoulder portion 3, a function of facilitating the folding of the shoulder portion 3 along the protruding rib 31 is achieved. More specifically, the shoulder portion 3 can be folded in a mountain fold manner at the portion of the protruding rib 31. At this time, a lower shoulder portion 32 which is a region between the body portion 4 and the protruding rib 31 can be put under an upper shoulder portion 33 which is a region between the mouth portion 2 and the protruding rib 31. By deforming the shoulder portion 3 in this way, the upper shoulder portion 33 becomes a projecting portion having an eave shape, and serves to engage with the bottom portion 5 (to be described below) when the body portion 4 is folded.
  • An engraved mark 34 having a circular shape is provided at the vertex portions B, B (vertex portions at which the end portions of the protruding ribs 31 are not disposed) of the shoulder portion 3 ( FIGS. 1 to 3 ).
  • an engraved mark 51 having a circular shape is provided at the bottom portion 5 ( FIGS. 1 and 2 ). In the bottom portion 5, the engraved mark 51 is provided at vertex portions directly below the vertex portions B, B of the shoulder portion 3. Note that the engraved mark 51 being located directly below the engraved mark 34 indicates that there is a positional relationship in which the engraved mark 51 is reached by tracing the surface of the bottle 1 downward (to the downward direction in FIG. 1 and FIG.
  • the engraved mark 51 is located "directly below” the engraved mark 34 in the arrangement on the bottle 1, and the engraved mark 34 and the engraved mark 51 are not necessarily located strictly on the same vertical line.
  • "directly above” or “directly below” similarly indicates the vertical positional relationship in the arrangement on the bottle 1, and does not require presence on the same vertical line in a strict sense.
  • the body portion 4 is divided into an upper portion 41, a specific portion 42, and a lower portion 43 in order from a side connected to the shoulder portion 3 (upper side) to a side connected to the bottom portion 5 (lower side).
  • the body portion 4 is regarded as having a substantially quadrangular cylindrical shape as a handling feature during manufacturing, distribution, and the like. That is, the substantially quadrangular cylindrical shape of the body portion 4 is not necessarily a quadrangular cylindrical shape in a mathematical sense.
  • the upper portion 41 is a portion of the body portion 4 above the specific portion 42, that is, a portion between the specific portion 42 and the shoulder portion 3.
  • the upper portion 41 is provided with a first lateral rib 61 (an example of a recessed rib) along a boundary between the shoulder portion 3 and the upper portion 41, and a plurality of (five in the present embodiment) second lateral ribs 62 ( FIG. 1 and FIG. 2 ).
  • the first lateral rib 61 is a recessed rib (that refers to as a rib recessed to the inner side of the bottle 1, the same applies hereinafter) provided on each of the surfaces on the long side ( FIG. 1 ) and the surfaces on the short side ( FIG.
  • the depth of the first lateral rib 61 is uniform. Note that the depth of the recessed rib refers to the depth at which the rib is recessed to the inner side of the bottle 1, and the same applies to other recessed ribs to be described below.
  • the second lateral rib 62 is a recessed rib provided along the horizontal direction over the entire circumference of the upper portion 41.
  • the second lateral rib 62 has a wavy shape in which deep portions and shallow portions are alternately provided. More specifically, deep portions are provided at portions corresponding to the sides of the cross-section, and shallow portions are provided at portions corresponding to vertices of the cross-section.
  • the specific portion 42 is formed as a portion recessed further inward of the bottle 1 than the upper portion 41 and the lower portion 43 ( FIG. 1 and FIG. 2 ).
  • a cross-section of the specific portion 42 is illustrated in FIG. 4 .
  • Two pairs of opposing sides 44, 45 can be seen in the cross-section, one pair of sides 44 corresponds to the surfaces on the long side ( FIG. 1 ) and the other pair of sides 45 corresponds to the surfaces on the short side ( FIG. 2 ).
  • a parallelogram P is formed by extending these two pairs of opposing sides 44, 45.
  • the parallelogram P has vertices P1 with an acute internal angle and vertices P2 with an obtuse internal angle, that is, the internal angles of the parallelogram P are not right angles. In other words, the parallelogram P is not a rectangle.
  • the vertex portion A (at which an end portion of the protruding rib 31 is disposed) and the vertex portion B (at which the engraved mark 34 is disposed) of the shoulder portion 3 and the vertex P1 (acute angle) and the vertex P2 (obtuse angle) of the specific portion 42 have a positional relationship in which the vertex portion A is directly above the vertex P1 and the vertex portion B is directly above the vertex P2.
  • First vertical ribs 71 are provided along boundaries between the surfaces on the long side ( FIG. 1 ) and the surfaces on the short side ( FIG. 2 ) of the specific portion 42. More specifically, the first vertical ribs 71 are provided at two boundaries corresponding to the vertices P1 with the acute angle of the parallelogram P among the boundaries between the surfaces on the long side and the surfaces on the short side. In the present embodiment, the first vertical ribs 71 are protruding ribs provided projecting outward for the bottle 1.
  • the specific portion 42 includes a recessed portion 42b recessed further to the inner side from a main portion 42a of the specific portion 42.
  • the recessed portion 42b is provided at the center in the left-right direction of the surface on the long side of the cross-section ( FIG. 1 ).
  • a rib 46 having a cross shape is provided at the center of the recessed portion 42b.
  • the rib 46 is formed of two recessed ribs orthogonal to each other.
  • a third lateral rib 63 extending in the circumferential direction is provided at the main portion 42a of the specific portion 42. More specifically, three third lateral ribs 63 are provided side by side in parallel in the height direction on each of the left and right sides of the recessed portion 42b, and the length of the central one of the three third lateral ribs 63 is slightly longer than the lengths of the upper and lower ones of the third lateral ribs 63 ( FIG. 1 and FIG. 2 ).
  • the third lateral rib 63 is a recessed rib having a uniform depth.
  • the first vertical ribs 71 are provided in the form of intersecting the three third lateral ribs 63.
  • the specific portion 42 functions as a suitable gripping position for a user to grip the bottle 1.
  • the specific portion 42 is formed as a portion recessed further inward of the bottle 1 than the upper portion 41 and the lower portion 43, even a user whose hand is relatively small can easily grasp the specific portion 42 without difficulty.
  • the user can hook his/her finger on the recessed portion 42b, and thus the gripping of the bottle 1 is easily stabilized.
  • the sizes of the internal angles of the respective vertices with acute and obtuse angles of the parallelogram P are not limited as long as the parallelogram P is a parallelogram.
  • the internal angle of an acute vertex is expressed as 90° - ⁇ and the internal angle of an obtuse vertex is expressed as 90° + ⁇ .
  • ⁇ is 5°, that is, the internal angle of the vertex P1 is 85°, and the internal angle of the vertex P2 is 95°.
  • ⁇ is preferably 1° or more and 30° or less.
  • the cross-sectional shape of the specific portion 42 being the parallelogram P produces an effect of facilitating operation of crushing the specific portion 42 (to be described below), and this effect is particularly likely to be exhibited when ⁇ is 1° or more.
  • ⁇ is 30° or less, the function of the specific portion 42 as the gripping position of the bottle 1 is less likely to be impaired.
  • ⁇ is 3° or more, and still more preferably, ⁇ is 4° or more.
  • ⁇ is 10° or less, and still more preferably, ⁇ is 6° or less.
  • the lower portion 43 is a portion of the body portion 4 below the specific portion 42, that is, a portion between the specific portion 42 and the bottom portion 5.
  • the lower portion 43 is provided with a wavy rib 64, a spring rib 65, and a plurality of (two in the present embodiment) fourth lateral ribs 66 in this order from the top. All of these ribs are recessed ribs.
  • second vertical ribs 72 extending along two boundaries located below the first vertical ribs 71 among the boundaries between the surfaces on the long side ( FIG. 1 ) and the surfaces on the short side ( FIG. 2 ) of the cross-section of the lower portion 43.
  • the second vertical ribs 72 are protruding ribs provided in the form of intersecting the wavy rib 64 and the fourth lateral ribs 66. Note that the cross-sectional shape of the lower portion 43 is substantially the same as the plan view of the bottle 1 ( FIG. 3 ).
  • the wavy rib 64 is a rib provided in such a shape that the position thereof in the vertical direction continuously changes along the circumferential direction of the lower portion 43.
  • the spring rib 65 includes a groove portion 65a provided over the entire circumference of the lower portion 43, and a small recessed portion 65a formed above and below the groove portion 65b over the entire circumference of the lower portion 43.
  • the spring rib 65 including the groove portion 65a and the small recessed portions 65b can be regarded as one rib as a whole.
  • the fourth lateral ribs 66 are provided along the horizontal direction over the entire circumference of the lower portion 43. However, as described above, the second vertical rib 72 intersects the fourth lateral ribs 66. The depth of the fourth lateral ribs 66 is uniform except for the portions intersected by the second vertical rib 72.
  • the bottle 1 is folded at the specific portion 42 crushed ( FIG. 6 ).
  • operation of bringing the bottom portion 5 into contact with the shoulder portion 3 is required, and this operation is achieved by causing the engraved mark 34 of the shoulder portion 3 and the engraved mark 51 of the bottom portion 5 to approach each other.
  • the engraved mark 34 and the engraved mark 51 having the same circular shape serve to suggest this operation to consumers.
  • the shoulder portion 3 When the bottom portion 5 is pushed against the shoulder portion 3 after the bottom portion 5 is brought into contact with the shoulder portion 3, the shoulder portion 3 is mountain-folded at the protruding rib 31, the lower shoulder portion 32 gets under the upper shoulder portion 33, and the upper shoulder portion 33 becomes a projecting portion having an eave shape.
  • This projecting portion serves, by being finally engaged with the bottom portion 5, to fix a state in which the bottle 1 is folded in half.
  • the first lateral rib 61 functions as a folding line to facilitate the crushing of the shoulder portion 3.
  • the presence or absence and the arrangement of the ribs at the lower portion are arbitrary.
  • the presence or absence of the recessed rib is arbitrary.
  • the configuration in which the vertical protruding ribs 141 are provided in the form of intersecting the seven lateral recessed ribs 142 has been described as an example, in a case where a recessed rib is provided, the positional relationship between the protruding rib and the recessed rib is not limited.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
EP23823849.7A 2022-06-13 2023-06-09 Harzbehälter Pending EP4538189A1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2022095144A JP2023181800A (ja) 2022-06-13 2022-06-13 樹脂製容器
JP2022201237A JP2024086216A (ja) 2022-12-16 2022-12-16 樹脂製容器
JP2022201236A JP2024086215A (ja) 2022-12-16 2022-12-16 樹脂製容器
JP2022201238A JP2024086217A (ja) 2022-12-16 2022-12-16 樹脂製容器
PCT/JP2023/021518 WO2023243559A1 (ja) 2022-06-13 2023-06-09 樹脂製容器

Publications (1)

Publication Number Publication Date
EP4538189A1 true EP4538189A1 (de) 2025-04-16

Family

ID=89191254

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23823849.7A Pending EP4538189A1 (de) 2022-06-13 2023-06-09 Harzbehälter

Country Status (6)

Country Link
EP (1) EP4538189A1 (de)
KR (1) KR20250023360A (de)
CN (1) CN119365388A (de)
AU (1) AU2023294286A1 (de)
TW (1) TW202411127A (de)
WO (1) WO2023243559A1 (de)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10329820A (ja) * 1997-05-30 1998-12-15 Shoji Iwai 薄肉プラスチックボトル
JP3845182B2 (ja) * 1997-08-28 2006-11-15 株式会社吉野工業所 プラスチック容器
JP2003276718A (ja) * 2002-03-25 2003-10-02 Hanshin Kasei Kogyo Kk 合成樹脂製容器
JP2004276916A (ja) * 2003-03-12 2004-10-07 Saraya Kk 合成樹脂製容器
JP4820242B2 (ja) 2006-08-31 2011-11-24 ロート製薬株式会社 減容可能容器
JP5012080B2 (ja) 2007-02-20 2012-08-29 東洋製罐株式会社 合成樹脂製容器
JP6110248B2 (ja) * 2013-07-31 2017-04-05 株式会社吉野工業所 ブロー成形容器

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KR20250023360A (ko) 2025-02-18
WO2023243559A1 (ja) 2023-12-21
TW202411127A (zh) 2024-03-16
AU2023294286A1 (en) 2024-12-12
CN119365388A (zh) 2025-01-24

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