WO2022107471A1 - Metal molded body - Google Patents

Metal molded body Download PDF

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Publication number
WO2022107471A1
WO2022107471A1 PCT/JP2021/036903 JP2021036903W WO2022107471A1 WO 2022107471 A1 WO2022107471 A1 WO 2022107471A1 JP 2021036903 W JP2021036903 W JP 2021036903W WO 2022107471 A1 WO2022107471 A1 WO 2022107471A1
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WIPO (PCT)
Prior art keywords
molded body
metal molded
tapered
shape
metal
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Application number
PCT/JP2021/036903
Other languages
French (fr)
Japanese (ja)
Inventor
江利華 佐藤
章太 田中
健 村瀬
信宏 篠島
Original Assignee
東洋製罐株式会社
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Application filed by 東洋製罐株式会社 filed Critical 東洋製罐株式会社
Publication of WO2022107471A1 publication Critical patent/WO2022107471A1/en

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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
    • B65D1/12—Cans, casks, barrels, or drums
    • B65D1/14—Cans, casks, barrels, or drums 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—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
    • B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
    • B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
    • 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
    • B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
    • B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together

Definitions

  • the present invention relates to a metal molded body having a bottom and a body and having an opening on the upper surface side.
  • cup-shaped containers with an open top surface are generally stored and transported by stacking them, but especially when the containers are made of metal, scratches occur on the parts that come into contact when stacking, and laminating or There was a problem that the paint was peeled off and the metal material was exposed. Further, when a plurality of containers are stacked, depending on the shape of the container, the outer surface of the body of the upper container and the inner surface of the body of the lower container are in close contact with each other, and as a result, these stacked containers are used. There is also a problem that so-called blocking occurs in which the air flow between the containers becomes poor and the separation becomes difficult when the containers are individually separated.
  • the present invention solves the above-mentioned problems, and when the metal materials are overlapped, the contact portion is not scratched, the exposure of the metal material is suppressed, and the metal materials are individually separated from the overlapped state. It is an object of the present invention to provide a metal molded body which can be easily separated.
  • the metal molded body according to the present invention is a metal molded body having a bottom portion, a body portion, and a cylindrical opening.
  • the bottom has an outer rising portion that extends outward and upward.
  • the body portion has a tapered portion that expands outward as it goes upward, and a constricted portion that becomes convex inward.
  • the constricted portion exists between the tapered portion and the outer rising portion, and is characterized by being formed in a curved line.
  • the metal molded body according to the present invention there is an inwardly convex curve between the tapered portion in the body portion that expands outward as it goes upward and the outward rising portion extending outward and upward in the bottom portion.
  • the formed constricted part when separating from the vertically stacked state while ensuring strength, ease of gripping, designability, ease of manufacturing, loading efficiency at the time of transportation, etc.
  • it is possible to soften the contact of the entire body when superposed it is possible to suppress the occurrence of scratches on the contact portion when superposed, and as a result, it is possible to prevent the exposure of the metal material. can.
  • the body portion of the present invention protrudes inward in the axial direction from the maximum diameter of the bottom portion. Since there is no such thing, a sufficient internal volume can be secured while obtaining the above effect.
  • the metal molded body having a radius of curvature of the outer rising portion of the present invention of 0.5 to 5.0 mm, it is possible to avoid pinpointing the contact portion related to the outer rising portion when superposed. Since it is possible to soften the contact, it is possible to surely suppress the occurrence of scratches on the contact portion when overlapping, and as a result, it is possible to surely obtain the effect of preventing the exposure of the metal material. Can be done.
  • the radius of curvature of the outer rising portion of the metal molded body is less than 0.5 mm, the outer rising portion has a sharp shape and there is a possibility that scratches may occur on the parts that come into contact with each other when they are overlapped.
  • the radius of curvature of the outer rising portion of the metal molded body exceeds 5.0 mm, molding defects may easily occur when molding the bottom portion.
  • the body portion is prevented from protruding inward from the maximum diameter of the bottom portion, so that the above effect can be obtained.
  • a sufficient internal volume can be secured.
  • the radius of curvature constituting the constricted portion of the metal molded body is less than 10 mm, the constricted portion is excessively convex inward and the portion in contact with the outer rising portion of the overlaid metal molded body is scratched. May occur.
  • the boundary between the constricted portion and the body portion may be sharply bent, which may increase the molding load during molding.
  • the protruding height of the protruding portion of the upper metal molded body with respect to the height of the metal molded body may be high, and the stacking ratio may be low.
  • the radius of curvature constituting the constricted portion of the metal molded body exceeds 500 mm, the degree of inward convexity of the constricted portion is extremely small, so that when the metal molded body is individually separated from the stacked state in the vertical direction.
  • the outer rising portion of the upper metal molded body and the lower portion of the tapered portion of the lower metal molded body Since they can be overlapped so as to be in contact with each other, storage efficiency and loading efficiency during transportation can be reliably ensured.
  • the metal molded body having a tapered portion composed of a single or a plurality of panels arranged side by side in the circumferential direction of the present invention, it is easy to superimpose and the user can easily grasp it. Further, since the panel has a peripheral surface having a smoothly continuous shape, the above effect can be surely obtained. Further, the above effect can be surely obtained by having the shape of the tapered portion having a cross section perpendicular to the axial direction of the body portion having a circular shape, a substantially polygonal shape, and a shape combining these.
  • the metal molded body of the present invention or a metal molded body in which the outer surface of the outer rising portion of the upper metal molded body abuts on the inner surface of the constricted portion of the lower metal molded body when two metal molded bodies are stacked in the vertical direction.
  • the metal molded body in which the outer surface of the outer rising portion of the upper metal molded body abuts on the inner surface of the lower portion of the tapered portion of the lower metal molded body when two bodies are stacked in the vertical direction storage efficiency and transportation It is possible to reliably secure the loading efficiency at the time.
  • the vertical sectional view which shows the outline of the metal molded body (container) which concerns on one Embodiment of this invention.
  • the end view which shows the shape of the bottom part and the lower part of the body part of the metal molded body (container) of this invention.
  • the vertical sectional view which shows the modification of the cylindrical opening of the metal molded body (container) of this invention.
  • the end view of the cross section which shows the modification of the metal molded body (container) of this invention.
  • the vertical sectional view which shows the outline of the metal molded body (container) which concerns on another embodiment of this invention.
  • the metal molded body according to the embodiment of the present invention has a bottom portion 120, a body portion 110, and a cylindrical opening 130 having an opening on the upper surface side, and two or more thereof can be stacked in the vertical direction.
  • the peripheral edge of the opening of the tubular opening 130 is formed into a curl shape so that the sharp end face does not directly hit the mouth for use as a cup.
  • the vertical direction is the axial direction in which the central axis X of the body portion 110 of the container 100 extends, and is the vertical direction when the container 100 is placed on a horizontal plane with the bottom portion 120 facing downward.
  • the bottom portion 120 has a dome portion 125 that is convex upward (upward in FIG. 2) of the container and a lower portion of the container (lower in FIG. 2) radially outside the dome portion 125. It has an annular grounding rim portion 121 having a substantially gutter-shaped cross section having a convex cross section.
  • the grounding rim portion 121 has a shape in which a stable upright form is maintained in an upright state in which the container 100 is in contact with the horizontal plane F, and the grounding portion 123 and the grounding portion 123 in contact with the horizontal plane F when placed on the horizontal plane F.
  • the outer rising portion 122 of the ground contact rim portion 121 is connected to the lower end of the constricted portion 114 of the body portion 110, which will be described later, and the inner rising portion 124 is connected to the outer peripheral end 126 of the dome portion 125.
  • the outer peripheral end 126 of the dome portion 125 is a peripheral edge having the maximum diameter of the spherical cap constituting the dome portion 125.
  • the dome portion 125 has a spherical crown shape as a whole, which is arcuate in a cross-sectional view including the central axis X related to the container 100.
  • the radius of curvature of the arc in the cross section including the central axis X is 160 mm.
  • the distance (bottom sink: BS) from the ground contact portion 123, which is the lowermost end of the ground contact rim portion 121, to the topmost portion of the dome portion 125 is 4 mm in the present embodiment.
  • the inner rising portion 124 is a portion from the ground contact portion 123 with the horizontal plane F of the container 100 to the outer peripheral end 126 of the dome portion 125, and the outer peripheral surface thereof is composed of a flat surface, a curved surface, and a combination thereof.
  • the outer rising portion 122 is a portion from the contact portion 123 with the horizontal plane F of the container 100 to the lower end of the constricted portion 114.
  • the outer rising portion 122 has an arc shape having a single radius of curvature in a cross section including the central axis X, and the radius of curvature of the arc in the cross section including the central axis X is 0.5 to 5.0 mm. In this embodiment, it is 2.3 mm.
  • the outer rising portion 122 may have a substantially arc shape including a plurality of radius of curvature portions in a cross-sectional view including the central axis X.
  • the body portion 110 has an inverted truncated cone-shaped (tapered shape) tapered portion 111 that expands outward as it goes upward, and a constricted portion 114 that connects the tapered portion 111 to the bottom portion 120. That is, the body portion 110 is continuous with the bottom portion 120 by connecting and extending the constricted portion 114 from the uppermost end 122a of the outer rising portion 122 of the bottom portion 120.
  • All the body portions 110 have a size equal to or larger than the maximum diameter of the bottom portion 120.
  • the diameter at an arbitrary position of the body portion 110 is always larger than the diameter of the uppermost end 122a of the outer rising portion 122, which is the maximum diameter of the bottom portion 120. Therefore, the diameter at an arbitrary position of the body portion 110 does not protrude radially inward from the virtual straight line L extending in the vertical direction from the uppermost end 122a of the outer rising portion 122.
  • the tapered portion 111 has no step portion and has a shape that continuously expands the diameter over the entire length in the axial direction of the body portion 110.
  • the tapered portion 111 is composed of one panel having an inverted truncated cone shape, and has a uniform tapered shape that is linear in a cross-sectional view including the central axis X. That is, the tapered portion 111 has a circular cross section perpendicular to the axial direction of the body portion 110.
  • the taper angle ⁇ of the tapered portion 111 is 2 to 15 °, which is 5 ° in the present embodiment. Containers with a taper angle of more than 15 ° will have a larger distance from the adjacent container when arranged horizontally in an upright position, resulting in poor storage efficiency. Containers with a taper angle of less than 2 ° will be in the vertical direction.
  • the panel constituting the tapered portion 111 has an outer peripheral surface and an inner peripheral surface having a shape that is smoothly continuous over the entire length in the axial direction of the body portion 110.
  • the tapered portion 111 is set to a height of 10% to 90% from the horizontal plane when the container 100 is placed upright on the horizontal plane when the total height of the container is 100%.
  • the tapered portion 111 may have a shape in which a curved shape, a linear shape, or the like whose outward spread gradually changes in angle in a cross-sectional view is combined.
  • the shape may be a shape that has been subjected to minute uneven processing such as an embossed pattern, or a shape in which a bead portion that bulges inward or outward is formed within a range that does not hinder stacking.
  • the constricted portion 114 exists between the tapered portion 111 and the outer rising portion 122, the lowermost end thereof is connected to the uppermost end 122a of the outer rising portion 122, and the uppermost end thereof is connected to the lowermost end 111z of the tapered portion 111. ing.
  • the constricted portion 114 does not have a corner portion such as a step portion, and has a shape in which the constricted portion 114 is smoothly connected while continuously expanding the diameter over the entire length in the axial direction of the body portion 110. That is, the diameter of the constricted portion 114 at an arbitrary position is always larger than the diameter of the uppermost end 122a of the outer rising portion 122.
  • the constricted portion 114 does not protrude radially inward from the virtual straight line L extending in the vertical direction from the uppermost end 122a of the outer rising portion 122.
  • the lowermost end of the constricted portion 114 is the minimum diameter of the constricted portion 114
  • the uppermost end of the constricted portion 114 is the maximum diameter of the constricted portion 114.
  • the constricted portion 114 is formed of a curve that is convex inward in a cross-sectional view including the central axis X, and the radius of curvature of the curve in the cross section including the central axis X is 10 to 500 mm. In the embodiment, it is 100 mm.
  • the curve forming the constricted portion 114 may be composed of a plurality of radius-of-curvature portions or a combination of straight lines.
  • the angle of the approximate straight line of the curve related to the constricted portion 114 that is, the angle of the virtual straight line connecting the lowermost end 111z of the tapered portion 111 and the uppermost end 122a of the outer rising portion 122 is smaller than the taper angle of the tapered portion 111.
  • it is set to 1.0 to 7.0 °, and in the present embodiment, it is 2.3 °.
  • the tubular opening 130 is connected to the uppermost end of the tapered portion 111 and is continuous to the upper opening, for example, does not extend outward and has a substantially cylindrical shape. Further, the tubular opening 130 may be formed so as to spread outward at an angle different from that of the tapered portion 111. Further, as shown in FIG. 3, the tubular opening 130 may have a stepped portion formed and a shoulder portion 131 having an enlarged diameter outward.
  • the plate material for forming the container 100 is an aluminum alloy having a plate thickness of 0.20 mm to 0.35 mm, which is laminated with a PET film of about 0.01 mm on both sides, similar to a well-known two-piece beverage can made of an aluminum alloy. Plate material is used. By using such a plate material, when molded into a container, the bottom where the plate thickness of the material is almost maintained is 0.20 mm to 0.35 mm, and 50 ⁇ 10% when the total height of the container is 100%.
  • the body portion 110 in the height range of is 0.10 to 0.22 mm in thickness.
  • the upper portion of the upper container 200 has a protruding portion 112 protruding from the upper end of the lower container 300, and the protruding height T of the protruding portion 112 is determined by the height of the constricted portion, the shape of the bottom portion, and the like.
  • the protrusion height T is 8.0 mm
  • the stack ratio which is the ratio of the protrusion height T of the protrusion 112 to the height H of the container 100, is 7.1%.
  • the metal molded product of the present invention such as the above-mentioned container 100 may be used as a can to which a lid member is attached after filling the inside with a beverage or the like.
  • the lid member may be any metal stain tab lid, a sheet made of a laminated body, a screw lid, or the like.
  • the lid member is used as a stayion tab lid and wound around the upper end of the tubular opening, the upper end of the tubular opening of the metal molded body is trimmed for winding and then flanged to form a planar portion. It suffices if it is in a state of being.
  • the upper end of the tubular opening of the metal molded body may have a planar shape in order to secure the bonding area. good.
  • the sheet made of the laminated body include aluminum foil, paper, a resin film, and a laminated material in which two or more kinds of these are laminated, and a heat adhesive layer (heat seal layer) may be further laminated.
  • a heat adhesive layer a layer made of a known sealant film, a lacquer type adhesive, an easy peel adhesive, a hot melt adhesive, or the like can be adopted.
  • the lid member When the lid member is screw-fixed to the upper end of the tubular opening as a screw lid, it may have a thread on the protruding portion such as the upper end of the tubular opening of the metal molded body, and the screw lid is screw-fixed.
  • a lid member with a spout having a separate thread may be wound around the upper end of the tubular opening of the metal molded body.
  • the metal molded body (container) according to the embodiment of the present invention has been described in detail above, the metal molded body of the present invention is not limited to the above-described embodiment, and the present invention described in the claims. It is possible to make various changes within the scope of the gist of.
  • the tapered portion 111 is not limited to being composed of a single inverted cone-shaped panel, and may be composed of a plurality of panels arranged side by side in the circumferential direction.
  • the shape of the cross section perpendicular to the axial direction of the tapered portion 111 is a substantially polygonal shape, a bow shape composed of an arc and a chord, a missing circle shape lacking a bow shape from a circle, and a shape combining these.
  • Each panel has an outer peripheral surface and an inner peripheral surface having a shape that is smoothly continuous over the entire axial length of the body portion 110. Examples of such a tapered portion include a diamond-cut portion.
  • the cross-sectional shape of the tapered portion 111 is a substantially polygonal shape, as shown in FIG. 6, the polygonal portion is composed of, for example, a straight portion 111s and a top portion 111t, and the top portion 111t is formed of an arc.
  • the radius of curvature of the arc is 2 mm or more, and is 2 to 50 mm.
  • the straight line portion 111s may be formed of a gentle curve having a radius of curvature larger than that of the arc constituting the top portion 111t.
  • the metal molded body according to another embodiment of the present invention can be a container 400 as shown below.
  • the container 400 according to another embodiment of the present invention is gradually reduced in diameter downward from the lower end of the constricted portion 114 of the body portion 110 to the lower side of the continuous outer rising portion 422. It has a bottom portion 420 having a configuration including a chime portion 427, and other configurations have the same configuration as the container 100 according to the embodiment of the present invention described above.
  • members having the same structure as the container 100 according to the embodiment of the present invention are designated by the same reference numerals.
  • the bottom portion 420 of the container 400 has a dome portion 425 that is convex upward (upper in FIG.
  • the grounding rim portion 421 has a shape in which a stable upright form is maintained in an upright state in which the container 400 is in contact with the horizontal plane F, and the grounding portion 423 and the grounding portion 423 that come into contact with the horizontal plane F when placed on the horizontal plane F.
  • the outer rising portion 422 extending upward and radially outward, the chime portion 427 interposed between the outer rising portion 422 and the grounding portion 423 and gradually reducing the diameter as it goes downward, and the grounding portion 423.
  • the outer rising portion 422 of the ground contact rim portion 421 is connected to the lower end of the constricted portion 114 of the body portion 110.
  • the dome portion 425 and the inner rising portion 424 are the same as the dome portion 125 and the inner rising portion 124 in the container 100 according to the above embodiment, respectively.
  • the outer rising portion 422 is a portion from the upper end of the chime portion 427 to the lower end of the constricted portion 114.
  • the outer rising portion 422 has an arc shape having a single radius of curvature in a cross section including the central axis X, and the radius of curvature of the arc in the cross section including the central axis X is 0.5 to 5.0 mm. In this embodiment, it is 2.3 mm. Further, the outer rising portion 422 may have a substantially arc shape including a plurality of radius of curvature portions in a cross-sectional view including the central axis X.

Abstract

The present invention addresses the problem of providing a metal molded body in which no damage occurs in a contact portion when superimposed, and exposure of a metal material is suppressed, and which can be easily separated during individual separation from a superimposed state.　This metal molded body (container (100)) is characterized by having a bottom section (120), a trunk section (110), and a cylindrical opening section (130), wherein: the bottom section (120) has an outer rising section (122) extending outward and upward; the trunk section (110) has a tapered part (111) expanding outward gradually along an upward direction and a constriction section (114) protruding inward; and the constriction section (114) is present between the tapered section (111) and the outer rising section (122) and is formed in a curve.

Description

金属成形体Metal molded body
　本発明は、底部と胴部を有し、上面側が開口した金属成形体に関する。 The present invention relates to a metal molded body having a bottom and a body and having an opening on the upper surface side.
　近年、資源の節約、廃棄物の削減等のため、紙、プラスチック等の容器に代替可能で、軽量、安価でかつリサイクルが容易な容器が求められている。
　また、プラスチックによる海洋汚染が進行している等の環境汚染を防止する世界的な意識の高まりから、リサイクルに向け回収され易い材料で作られた容器が求められている。
　食器として、あるいは、飲料・食品等を充填する容器として使用する、上面側が開口した金属製の容器は周知であり（特許文献１等参照。）、これを応用することが考えられる。 In recent years, in order to save resources and reduce waste, there is a demand for a container that can be replaced with a container such as paper or plastic, is lightweight, inexpensive, and is easy to recycle.
In addition, due to the growing global awareness of preventing environmental pollution such as the progress of marine pollution caused by plastics, there is a demand for containers made of materials that are easy to recover for recycling.
Metal containers with an open top surface, which are used as tableware or as containers for filling beverages, foods, etc., are well known (see Patent Document 1 and the like), and it is conceivable to apply them.
　公知の上面側が開口したカップ状の容器として、食器に使用されるような、洗浄して何度も利用する金属製の容器は周知であるが、長期間の利用を考慮して耐久性を高める必要があることから、強度を高めるためにある程度の板厚が必要で、材料コスト、成形コストが大きくなり、重量も重くなることから、紙、プラスチック等の容器の代替とするには問題が多かった。
　近年、金属缶容器のリサイクル環境も整っていることから、特許文献１のような薄い材料の金属容器を用いることで、材料コスト、成形コストを低減し、重量も軽くしつつ、食器として１度のみの利用でも資源の節約、廃棄物の削減を行える可能性はある。 As a known cup-shaped container with an open top surface, a metal container that is washed and used many times, such as that used for tableware, is well known, but its durability is improved in consideration of long-term use. Since it is necessary, a certain amount of plate thickness is required to increase the strength, the material cost and molding cost are high, and the weight is also heavy, so there are many problems in substituting for containers such as paper and plastic. rice field.
In recent years, since the recycling environment for metal can containers has been established, by using a metal container made of a thin material as in Patent Document 1, the material cost and molding cost can be reduced, the weight can be reduced, and the tableware can be used once. There is a possibility that resources can be saved and waste can be reduced by using only.
特開２００３－１２８０６０号公報Japanese Patent Application Laid-Open No. 2003-128060
　一方、上面側が開口したカップ状の容器は重ね合わせて保管や運搬することが一般的だが、特に容器が金属製のものである場合は重ね合わせる際に当接する部分に傷が発生し、ラミネートや塗装が剥がれて金属材料が露出してしまう、という問題があった。
　また、複数の容器を重ね合わせた際に、容器の形状によっては上方の容器の胴部の外面と下方の容器の胴部の内面とが面で密に接触する結果、これらの重ね合わされた容器を個々に分離する際、容器間の空気の流通が不良となって分離が困難となるいわゆるブロッキングが発生する、という問題もあった。 On the other hand, cup-shaped containers with an open top surface are generally stored and transported by stacking them, but especially when the containers are made of metal, scratches occur on the parts that come into contact when stacking, and laminating or There was a problem that the paint was peeled off and the metal material was exposed.
Further, when a plurality of containers are stacked, depending on the shape of the container, the outer surface of the body of the upper container and the inner surface of the body of the lower container are in close contact with each other, and as a result, these stacked containers are used. There is also a problem that so-called blocking occurs in which the air flow between the containers becomes poor and the separation becomes difficult when the containers are individually separated.
　本発明は、前述のような課題を解決するものであり、重ね合わせた際に当接部分に傷が発生せずに金属材料の露出が抑制され、かつ、重ね合わされた状態から個々に分離する際に容易に分離可能な金属成形体を提供することを目的とする。 The present invention solves the above-mentioned problems, and when the metal materials are overlapped, the contact portion is not scratched, the exposure of the metal material is suppressed, and the metal materials are individually separated from the overlapped state. It is an object of the present invention to provide a metal molded body which can be easily separated.
　本発明に係る金属成形体は、底部と胴部と筒状開口部とを有する金属成形体であって、
　前記底部が、外方かつ上方に延びる外側立ち上がり部を有し、
　前記胴部が、上方に向かうに従って外方に広がるテーパ部と、内方に凸となるくびれ部とを有し、
　前記くびれ部が、前記テーパ部と前記外側立ち上がり部との間に存在し、かつ、曲線で形成されていることを特徴とする。 The metal molded body according to the present invention is a metal molded body having a bottom portion, a body portion, and a cylindrical opening.
The bottom has an outer rising portion that extends outward and upward.
The body portion has a tapered portion that expands outward as it goes upward, and a constricted portion that becomes convex inward.
The constricted portion exists between the tapered portion and the outer rising portion, and is characterized by being formed in a curved line.
　本発明に係る金属成形体によれば、胴部における上方に向かうに従って外方に広がるテーパ部と、底部における外方かつ上方に延びる外側立ち上がり部との間に、内方に凸となる曲線で形成されたくびれ部を有することによって、強度や把持のし易さ、意匠性、製造の容易性、運搬時の積載効率等を確保しながら、上下方向に重ね合わされた状態から個々に分離する際に、上方の金属成形体の胴部の外面と下方の金属成形体の胴部の内面とが面で密に接触することが防止されて金属成形体間の空気の流通を良好にすることができるので、優れた分離容易性が得られてブロッキングの発生を抑制することができる。また、重ね合わせた際の胴部全体の当たりを柔らかくすることができるので、重ね合わせた際の当接部分に傷が発生することが抑制され、その結果、金属材料の露出を防止することができる。 According to the metal molded body according to the present invention, there is an inwardly convex curve between the tapered portion in the body portion that expands outward as it goes upward and the outward rising portion extending outward and upward in the bottom portion. By having the formed constricted part, when separating from the vertically stacked state while ensuring strength, ease of gripping, designability, ease of manufacturing, loading efficiency at the time of transportation, etc. In addition, it is possible to prevent the outer surface of the upper body of the metal molding and the inner surface of the lower body of the metal molding from coming into close contact with each other and to improve the air flow between the metal moldings. Therefore, excellent separation ease can be obtained and the occurrence of blocking can be suppressed. In addition, since it is possible to soften the contact of the entire body when superposed, it is possible to suppress the occurrence of scratches on the contact portion when superposed, and as a result, it is possible to prevent the exposure of the metal material. can.
　本発明の胴部の任意の位置の径が外側立ち上がり部の最上端の径以上の大きさを有する金属成形体によれば、胴部が底部の最大径よりも軸方向の内方に突出することがないので、上記の効果が得られながら十分な内容積を確保することができる。 According to the metal molded body having a diameter at an arbitrary position of the body portion of the present invention larger than the diameter of the uppermost end of the outer rising portion, the body portion protrudes inward in the axial direction from the maximum diameter of the bottom portion. Since there is no such thing, a sufficient internal volume can be secured while obtaining the above effect.
　本発明の外側立ち上がり部の曲率半径が０．５～５．０ｍｍである金属成形体によれば、重ね合わせた際の外側立ち上がり部に係る当接部分についてピンポイントで当たることを回避することができて当たりを柔らかくすることができるので、重ね合わせた際の当接部分に傷が発生することが確実に抑制され、その結果、金属材料の露出を防止することができる効果を確実に得ることができる。
　金属成形体に係る外側立ち上がり部の曲率半径が０．５ｍｍ未満である場合は、外側立ち上がり部が尖った形状となって重ね合わせた際に接触する部分に傷が発生するおそれがある。一方、金属成形体に係る外側立ち上がり部の曲率半径が５．０ｍｍを超える場合は、底部の成形に際して成形不良が発生し易くなるおそれがある。 According to the metal molded body having a radius of curvature of the outer rising portion of the present invention of 0.5 to 5.0 mm, it is possible to avoid pinpointing the contact portion related to the outer rising portion when superposed. Since it is possible to soften the contact, it is possible to surely suppress the occurrence of scratches on the contact portion when overlapping, and as a result, it is possible to surely obtain the effect of preventing the exposure of the metal material. Can be done.
When the radius of curvature of the outer rising portion of the metal molded body is less than 0.5 mm, the outer rising portion has a sharp shape and there is a possibility that scratches may occur on the parts that come into contact with each other when they are overlapped. On the other hand, if the radius of curvature of the outer rising portion of the metal molded body exceeds 5.0 mm, molding defects may easily occur when molding the bottom portion.
　本発明のくびれ部を構成する曲率半径が１０～５００ｍｍである金属成形体によれば、胴部が底部の最大径よりも内方に突出することが防止されるので、上記の効果が得られながら十分な内容積を確保することができる。
　金属成形体に係るくびれ部を構成する曲率半径が１０ｍｍ未満である場合は、くびれ部が過度に内方に凸とされて上に重ね合わせた金属成形体の外側立ち上がり部と接触する部分に傷が発生するおそれがある。また、くびれ部と胴部との境目が急峻に曲がる形状となって成形に際して成形負荷が大きくなるおそれがある。さらに、上下方向に重ね合わせた金属成形体において、金属成形体の高さに対する上方の金属成形体の突出部の突出高さが高くなって、スタック率が低くなるおそれがある。
　一方、金属成形体に係るくびれ部を構成する曲率半径が５００ｍｍを超える場合は、くびれ部の内方への凸の程度が極めて小さいために、上下方向に重ね合わされた状態から個々に分離する際に、上方の金属成形体の胴部の外面と下方の金属成形体の胴部の内面とが面で密に接触してしまうことを防止することができずに金属成形体間の空気の流通が不良となり、ブロッキングの発生を抑制することができないおそれがある。 According to the metal molded body having a radius of curvature of 10 to 500 mm constituting the constricted portion of the present invention, the body portion is prevented from protruding inward from the maximum diameter of the bottom portion, so that the above effect can be obtained. However, a sufficient internal volume can be secured.
When the radius of curvature constituting the constricted portion of the metal molded body is less than 10 mm, the constricted portion is excessively convex inward and the portion in contact with the outer rising portion of the overlaid metal molded body is scratched. May occur. In addition, the boundary between the constricted portion and the body portion may be sharply bent, which may increase the molding load during molding. Further, in the metal molded bodies stacked in the vertical direction, the protruding height of the protruding portion of the upper metal molded body with respect to the height of the metal molded body may be high, and the stacking ratio may be low.
On the other hand, when the radius of curvature constituting the constricted portion of the metal molded body exceeds 500 mm, the degree of inward convexity of the constricted portion is extremely small, so that when the metal molded body is individually separated from the stacked state in the vertical direction. In addition, it is not possible to prevent the outer surface of the body of the upper metal molding and the inner surface of the body of the lower metal molding from coming into close contact with each other, and air flow between the metal moldings. May become defective and the occurrence of blocking may not be suppressed.
　本発明の胴部の軸方向の全長にわたって連続的に拡径するテーパ部を有する金属成形体によれば、上方の金属成形体の外側立ち上がり部と下方の金属成形体のテーパ部の下方部とを当接させるよう重ね合わせることができるので、保管効率や運搬時の積載効率を確実に確保することができる。 According to the metal molded body having a tapered portion whose diameter is continuously expanded over the entire axial length of the body portion of the present invention, the outer rising portion of the upper metal molded body and the lower portion of the tapered portion of the lower metal molded body. Since they can be overlapped so as to be in contact with each other, storage efficiency and loading efficiency during transportation can be reliably ensured.
　本発明の周方向に並べて配置された単数または複数のパネルからなるテーパ部を有する金属成形体によれば、重ね合わせやすく使用者が把持しやすい。また、パネルが滑らかに連続する形状の周面を有することにより、上記効果を確実に得ることができる。また、胴部が軸方向に対して垂直な断面のテーパ部の形状が円形状、略多角形状、およびこれらを組み合わせた形状を有することにより、上記効果を確実に得ることができる。 According to the metal molded body having a tapered portion composed of a single or a plurality of panels arranged side by side in the circumferential direction of the present invention, it is easy to superimpose and the user can easily grasp it. Further, since the panel has a peripheral surface having a smoothly continuous shape, the above effect can be surely obtained. Further, the above effect can be surely obtained by having the shape of the tapered portion having a cross section perpendicular to the axial direction of the body portion having a circular shape, a substantially polygonal shape, and a shape combining these.
　本発明の、金属成形体を上下方向に２つ重ねたときに上方の金属成形体における外側立ち上がり部の外面が下方の金属成形体におけるくびれ部の内面に当接する金属成形体、あるいは、金属成形体を上下方向に２つ重ねたときに上方の金属成形体における外側立ち上がり部の外面が下方の金属成形体におけるテーパ部の下方部の内面に当接する金属成形体によれば、保管効率や運搬時の積載効率を確実に確保することができる。 The metal molded body of the present invention, or a metal molded body in which the outer surface of the outer rising portion of the upper metal molded body abuts on the inner surface of the constricted portion of the lower metal molded body when two metal molded bodies are stacked in the vertical direction. According to the metal molded body in which the outer surface of the outer rising portion of the upper metal molded body abuts on the inner surface of the lower portion of the tapered portion of the lower metal molded body when two bodies are stacked in the vertical direction, storage efficiency and transportation It is possible to reliably secure the loading efficiency at the time.
本発明の一実施形態に係る金属成形体（容器）の概略を示す縦断面図。The vertical sectional view which shows the outline of the metal molded body (container) which concerns on one Embodiment of this invention. 本発明の金属成形体（容器）の底部および胴部の下部の形状を示す端面図。The end view which shows the shape of the bottom part and the lower part of the body part of the metal molded body (container) of this invention. 本発明の金属成形体（容器）の筒状開口部の変形例を示す縦断面図。The vertical sectional view which shows the modification of the cylindrical opening of the metal molded body (container) of this invention. 本発明の金属成形体（容器）を重ねた縦断面図。A vertical cross-sectional view in which the metal molded bodies (containers) of the present invention are stacked. 図４の一部拡大断面図。Partially enlarged cross-sectional view of FIG. 本発明の金属成形体（容器）の変形例を示す断面の端面図。The end view of the cross section which shows the modification of the metal molded body (container) of this invention. 本発明の別の実施形態に係る金属成形体（容器）の概略を示す縦断面図。The vertical sectional view which shows the outline of the metal molded body (container) which concerns on another embodiment of this invention.
　本発明の一実施形態に係る金属成形体は、図１に示すように、底部１２０と胴部１１０と上面側が開口した筒状開口部１３０とを有し、２つ以上を上下方向に積み重ね可能な金属製の容器１００である。
　本実施形態では、筒状開口部１３０の開口の周縁部は、コップとして使用するために鋭い端面が直接口に当たらないようカール形状に成形されている。
　本明細書において、上下方向とは容器１００の胴部１１０の中心軸Ｘが伸びる軸方向であり、容器１００を底部１２０が下方になる姿勢で水平面に載置した場合には鉛直方向のことをいう。 As shown in FIG. 1, the metal molded body according to the embodiment of the present invention has a bottom portion 120, a body portion 110, and a cylindrical opening 130 having an opening on the upper surface side, and two or more thereof can be stacked in the vertical direction. 100 metal containers.
In the present embodiment, the peripheral edge of the opening of the tubular opening 130 is formed into a curl shape so that the sharp end face does not directly hit the mouth for use as a cup.
In the present specification, the vertical direction is the axial direction in which the central axis X of the body portion 110 of the container 100 extends, and is the vertical direction when the container 100 is placed on a horizontal plane with the bottom portion 120 facing downward. Say.
　底部１２０は、図２に示されるように、容器上方（図２において上方）に凸となっているドーム部１２５と、このドーム部１２５よりも径方向外側において容器下方（図２において下方）に凸となっている断面が略樋状の環状の接地リム部１２１とを有する。
　接地リム部１２１は、容器１００が水平面Ｆに接地した正立状態で安定した直立形態が保持される形状とされ、水平面Ｆに載置した際に水平面Ｆと接する接地部１２３と、接地部１２３の上方かつ径方向の外方に延びる外側立ち上がり部１２２と、接地部１２３の上方かつ径方向の内方に延びる内側立ち上がり部１２４とを有している。
　接地リム部１２１の外側立ち上がり部１２２は、後述する胴部１１０のくびれ部１１４の下端に接続されており、また、内側立ち上がり部１２４は、ドーム部１２５の外周端１２６に接続されている。ドーム部１２５の外周端１２６は、ドーム部１２５を構成する球冠の径が最大となる周縁とされる。 As shown in FIG. 2, the bottom portion 120 has a dome portion 125 that is convex upward (upward in FIG. 2) of the container and a lower portion of the container (lower in FIG. 2) radially outside the dome portion 125. It has an annular grounding rim portion 121 having a substantially gutter-shaped cross section having a convex cross section.
The grounding rim portion 121 has a shape in which a stable upright form is maintained in an upright state in which the container 100 is in contact with the horizontal plane F, and the grounding portion 123 and the grounding portion 123 in contact with the horizontal plane F when placed on the horizontal plane F. It has an outer rising portion 122 extending upward and radially outward of the ground contact portion 123, and an inner rising portion 124 extending upward and radially inward of the ground contact portion 123.
The outer rising portion 122 of the ground contact rim portion 121 is connected to the lower end of the constricted portion 114 of the body portion 110, which will be described later, and the inner rising portion 124 is connected to the outer peripheral end 126 of the dome portion 125. The outer peripheral end 126 of the dome portion 125 is a peripheral edge having the maximum diameter of the spherical cap constituting the dome portion 125.
　ドーム部１２５は、容器１００に係る中心軸Ｘを含む断面視で円弧状となる全体として球冠状を呈するものであり、本実施形態では中心軸Ｘを含む断面における円弧の曲率半径は１６０ｍｍとされる。
　接地リム部１２１の最下端である接地部１２３からドーム部１２５の最頂部までの距離（ボトムシンク：ＢＳ）は本実施形態では４ｍｍとされる。 The dome portion 125 has a spherical crown shape as a whole, which is arcuate in a cross-sectional view including the central axis X related to the container 100. In the present embodiment, the radius of curvature of the arc in the cross section including the central axis X is 160 mm. To.
The distance (bottom sink: BS) from the ground contact portion 123, which is the lowermost end of the ground contact rim portion 121, to the topmost portion of the dome portion 125 is 4 mm in the present embodiment.
　内側立ち上がり部１２４は、容器１００の水平面Ｆとの接地部１２３からドーム部１２５の外周端１２６までの部分であり、その外周面は平面、曲面およびこれらの組み合わせから構成されている。 The inner rising portion 124 is a portion from the ground contact portion 123 with the horizontal plane F of the container 100 to the outer peripheral end 126 of the dome portion 125, and the outer peripheral surface thereof is composed of a flat surface, a curved surface, and a combination thereof.
　外側立ち上がり部１２２は、容器１００の水平面Ｆとの接地部１２３からくびれ部１１４の下端までの部分である。
　外側立ち上がり部１２２は、中心軸Ｘを含む断面視で単一の曲率半径を有する円弧状のものであり、中心軸Ｘを含む断面における円弧の曲率半径は０．５～５．０ｍｍとされ、本実施形態においては２．３ｍｍである。また、外側立ち上がり部１２２は、中心軸Ｘを含む断面視で複数の曲率半径部分からなる略円弧状のものであってもよい。 The outer rising portion 122 is a portion from the contact portion 123 with the horizontal plane F of the container 100 to the lower end of the constricted portion 114.
The outer rising portion 122 has an arc shape having a single radius of curvature in a cross section including the central axis X, and the radius of curvature of the arc in the cross section including the central axis X is 0.5 to 5.0 mm. In this embodiment, it is 2.3 mm. Further, the outer rising portion 122 may have a substantially arc shape including a plurality of radius of curvature portions in a cross-sectional view including the central axis X.
　胴部１１０は、上方に向かうに従って外方に広がる逆円錐台形状（テーパ形状）のテーパ部１１１と、テーパ部１１１から底部１２０に繋がるくびれ部１１４とを有している。すなわち、胴部１１０は、くびれ部１１４が底部１２０の外側立ち上がり部１２２の最上端１２２ａから接続して延びることによって底部１２０と連続している。 The body portion 110 has an inverted truncated cone-shaped (tapered shape) tapered portion 111 that expands outward as it goes upward, and a constricted portion 114 that connects the tapered portion 111 to the bottom portion 120. That is, the body portion 110 is continuous with the bottom portion 120 by connecting and extending the constricted portion 114 from the uppermost end 122a of the outer rising portion 122 of the bottom portion 120.
　胴部１１０は全て底部１２０の最大径以上の大きさを有する。換言すると、胴部１１０の任意の位置の径が、必ず底部１２０の最大径である外側立ち上がり部１２２の最上端１２２ａの径以上の大きさとなる。従って、胴部１１０の任意の位置の径が、外側立ち上がり部１２２の最上端１２２ａから上下方向に伸びる仮想直線Ｌよりも径方向内側に突出することはない。
　テーパ部１１１は、段部を有さず、胴部１１０の軸方向の全長にわたって連続的に拡径する形状を有する。本実施形態においては、テーパ部１１１は逆円錐台状の１つのパネルからなり、中心軸Ｘを含む断面視で直線状の一様なテーパ形状を有する。すなわちテーパ部１１１は胴部１１０の軸方向に対して垂直な断面の形状が円形状となる。
　テーパ部１１１のテーパ角θは２～１５°とされ、本実施形態では５°である。テーパ角が１５°を超える容器は、正立状態で水平方向に並べた際に隣の容器との距離が大きくなるため保管効率が悪くなり、テーパ角が２°より小さい容器は、上下方向に重ねた容器を分離する際、嵌まり込み等の発生のため分離の困難性が高まる。
　テーパ部１１１を構成するパネルは胴部１１０の軸方向の全長にわたって滑らかに連続する形状の外周面および内周面を有する。
　テーパ部１１１は、容器の全高を１００％としたときの、容器１００を水平面に正立状態で載置した場合の水平面から１０％の高さから９０％の高さまでとされている。
　なお、テーパ部１１１は、全体として連続的に拡径する形状であれば、外方への広がりが断面視で角度が徐々に変化する曲線状や直線状等が組み合わされた形状であってもよく、例えばエンボス模様等の微小の凸凹加工が施された形状や、積み重ねに支障のない範囲で内側または外側に膨出するビード部が形成された形状であってもよい。 All the body portions 110 have a size equal to or larger than the maximum diameter of the bottom portion 120. In other words, the diameter at an arbitrary position of the body portion 110 is always larger than the diameter of the uppermost end 122a of the outer rising portion 122, which is the maximum diameter of the bottom portion 120. Therefore, the diameter at an arbitrary position of the body portion 110 does not protrude radially inward from the virtual straight line L extending in the vertical direction from the uppermost end 122a of the outer rising portion 122.
The tapered portion 111 has no step portion and has a shape that continuously expands the diameter over the entire length in the axial direction of the body portion 110. In the present embodiment, the tapered portion 111 is composed of one panel having an inverted truncated cone shape, and has a uniform tapered shape that is linear in a cross-sectional view including the central axis X. That is, the tapered portion 111 has a circular cross section perpendicular to the axial direction of the body portion 110.
The taper angle θ of the tapered portion 111 is 2 to 15 °, which is 5 ° in the present embodiment. Containers with a taper angle of more than 15 ° will have a larger distance from the adjacent container when arranged horizontally in an upright position, resulting in poor storage efficiency. Containers with a taper angle of less than 2 ° will be in the vertical direction. When separating the stacked containers, the difficulty of separation increases due to the occurrence of fitting and the like.
The panel constituting the tapered portion 111 has an outer peripheral surface and an inner peripheral surface having a shape that is smoothly continuous over the entire length in the axial direction of the body portion 110.
The tapered portion 111 is set to a height of 10% to 90% from the horizontal plane when the container 100 is placed upright on the horizontal plane when the total height of the container is 100%.
If the tapered portion 111 has a shape in which the diameter is continuously expanded as a whole, the tapered portion 111 may have a shape in which a curved shape, a linear shape, or the like whose outward spread gradually changes in angle in a cross-sectional view is combined. Often, the shape may be a shape that has been subjected to minute uneven processing such as an embossed pattern, or a shape in which a bead portion that bulges inward or outward is formed within a range that does not hinder stacking.
　くびれ部１１４は、テーパ部１１１と外側立ち上がり部１２２との間に存在し、その最下端が外側立ち上がり部１２２の最上端１２２ａに接続され、その最上端がテーパ部１１１の最下端１１１ｚに接続されている。
　くびれ部１１４は、段部などの角部を有さず、胴部１１０の軸方向の全長にわたって連続的に拡径しながら滑らかに繋がる形状を有する。すなわち、くびれ部１１４の任意の位置の径が、必ず外側立ち上がり部１２２の最上端１２２ａの径以上の大きさとなる。従って、くびれ部１１４が外側立ち上がり部１２２の最上端１２２ａから上下方向に伸びる仮想直線Ｌよりも径方向内側に突出することはない。くびれ部１１４の最下端がくびれ部１１４の最小径となり、くびれ部１１４の最上端がくびれ部１１４の最大径となる。
　くびれ部１１４は、具体的には、中心軸Ｘを含む断面視で内方に凸となる曲線で形成されており、中心軸Ｘを含む断面における曲線の曲率半径は１０～５００ｍｍとされ、本実施形態においては１００ｍｍである。くびれ部１１４を形成する曲線は、複数の曲率半径部分や直線の組み合わせからなるものであってもよい。
　くびれ部１１４に係る曲線の近似直線の角度、すなわちテーパ部１１１の最下端１１１ｚと外側立ち上がり部１２２の最上端１２２ａとを結んだ仮想直線の角度は、テーパ部１１１のテーパ角よりも小さい角度、例えば１．０～７．０°とされ、本実施形態においては２．３°である。 The constricted portion 114 exists between the tapered portion 111 and the outer rising portion 122, the lowermost end thereof is connected to the uppermost end 122a of the outer rising portion 122, and the uppermost end thereof is connected to the lowermost end 111z of the tapered portion 111. ing.
The constricted portion 114 does not have a corner portion such as a step portion, and has a shape in which the constricted portion 114 is smoothly connected while continuously expanding the diameter over the entire length in the axial direction of the body portion 110. That is, the diameter of the constricted portion 114 at an arbitrary position is always larger than the diameter of the uppermost end 122a of the outer rising portion 122. Therefore, the constricted portion 114 does not protrude radially inward from the virtual straight line L extending in the vertical direction from the uppermost end 122a of the outer rising portion 122. The lowermost end of the constricted portion 114 is the minimum diameter of the constricted portion 114, and the uppermost end of the constricted portion 114 is the maximum diameter of the constricted portion 114.
Specifically, the constricted portion 114 is formed of a curve that is convex inward in a cross-sectional view including the central axis X, and the radius of curvature of the curve in the cross section including the central axis X is 10 to 500 mm. In the embodiment, it is 100 mm. The curve forming the constricted portion 114 may be composed of a plurality of radius-of-curvature portions or a combination of straight lines.
The angle of the approximate straight line of the curve related to the constricted portion 114, that is, the angle of the virtual straight line connecting the lowermost end 111z of the tapered portion 111 and the uppermost end 122a of the outer rising portion 122 is smaller than the taper angle of the tapered portion 111. For example, it is set to 1.0 to 7.0 °, and in the present embodiment, it is 2.3 °.
　筒状開口部１３０は、テーパ部１１１の最上端に接続して上方の開口まで連続し、例えば外方に広がっておらず、略円筒状を有する。
　また、筒状開口部１３０は、テーパ部１１１とは異なる角度で外方に広がるように形成してもよい。さらに、図３に示すように、筒状開口部１３０は、段部が形成されて外側に拡径する肩部１３１が形成されたものであってもよい。 The tubular opening 130 is connected to the uppermost end of the tapered portion 111 and is continuous to the upper opening, for example, does not extend outward and has a substantially cylindrical shape.
Further, the tubular opening 130 may be formed so as to spread outward at an angle different from that of the tapered portion 111. Further, as shown in FIG. 3, the tubular opening 130 may have a stepped portion formed and a shoulder portion 131 having an enlarged diameter outward.
　容器１００を形成するための板材としては、周知のアルミニウム合金製の２ピース飲料缶と同様に、両側に約０．０１ｍｍのＰＥＴフィルムをラミネートした板厚０．２０ｍｍ～０．３５ｍｍのアルミニウム合金の板材が用いられる。
　このような板材を用いることによって、容器に成形した時、材料の板厚がほぼ維持される底部が板厚０．２０ｍｍ～０．３５ｍｍ、容器の全高を１００％とした場合の５０±１０％の高さの範囲の胴部１１０が板厚０．１０～０．２２ｍｍとなる。 The plate material for forming the container 100 is an aluminum alloy having a plate thickness of 0.20 mm to 0.35 mm, which is laminated with a PET film of about 0.01 mm on both sides, similar to a well-known two-piece beverage can made of an aluminum alloy. Plate material is used.
By using such a plate material, when molded into a container, the bottom where the plate thickness of the material is almost maintained is 0.20 mm to 0.35 mm, and 50 ± 10% when the total height of the container is 100%. The body portion 110 in the height range of is 0.10 to 0.22 mm in thickness.
　本発明に係る容器１００を上下方向に２つ完全に重ね合わせた際には、図４および図５に示すように、上方の容器２００における外側立ち上がり部２２２の外面が、
（１）下方の容器３００におけるくびれ部３１４の内面
（２）下方の容器３００におけるテーパ部３１１の下方部の内面
の少なくとも１つが接触して当接する。
　上方の容器２００のテーパ部２１１の外面と下方の容器３００のテーパ部３１１の内面とが面で密に接触することはない。
　なお、容器を上下方向に完全に重ね合わせるとは、２つの容器を重ね合わせて合計の高さをそれ以上に小さくすることができない状態をいう。 When two containers 100 according to the present invention are completely overlapped in the vertical direction, as shown in FIGS. 4 and 5, the outer surface of the outer rising portion 222 in the upper container 200 is formed.
(1) The inner surface of the constricted portion 314 in the lower container 300 (2) At least one of the inner surfaces of the lower portion of the tapered portion 311 in the lower container 300 comes into contact with each other.
The outer surface of the tapered portion 211 of the upper container 200 and the inner surface of the tapered portion 311 of the lower container 300 do not come into close contact with each other.
The term "completely superimposing the containers in the vertical direction" means a state in which the total height cannot be further reduced by superimposing the two containers on top of each other.
　上方の容器２００の上部は下方の容器３００の上端から突出部１１２が突出し、突出部１１２の突出高さＴは、くびれ部の高さ、底部の形状等で決まる。
　図４の例においては、突出高さＴは８．０ｍｍであり、容器１００の高さＨに対する突出部１１２の突出高さＴの割合であるスタック率は７．１％である。 The upper portion of the upper container 200 has a protruding portion 112 protruding from the upper end of the lower container 300, and the protruding height T of the protruding portion 112 is determined by the height of the constricted portion, the shape of the bottom portion, and the like.
In the example of FIG. 4, the protrusion height T is 8.0 mm, and the stack ratio, which is the ratio of the protrusion height T of the protrusion 112 to the height H of the container 100, is 7.1%.
　上記の容器１００のような本発明の金属成形体は、内部に飲料等を充填した後、蓋部材を取り付けた缶として使用してもよい。
　蓋部材としては、金属製のステイオンタブ蓋、積層体からなるシート、ネジ蓋等、いかなるものであってもよい。
　蓋部材をステイオンタブ蓋として筒状開口部の上端に巻締める場合は、金属成形体の筒状開口部の上端は巻締のためのトリミング加工後に面状部を形成するフランジング加工を行った状態であればよい。
　蓋部材を積層体からなるシートとして筒状開口部の上端に熱等で接着する場合は、金属成形体の筒状開口部の上端は接着面積を確保するために面状部を有する形状としてもよい。積層体からなるシートとしては、例えば、アルミニウム箔、紙、樹脂フィルムやこれらを２種以上積層したラミネート材が挙げられ、更に熱接着層（ヒートシール層）が積層されていてもよい。熱接着層としては、公知のシーラントフィルムを始め、ラッカータイプ接着剤、イージーピール接着剤、ホットメルト接着剤等の接着剤からなる層が採用できる。
　蓋部材をネジ蓋として筒状開口部の上端にネジ固定する場合は、金属成形体の筒状開口部の上端等の突出部にネジ条を有するものとしてもよく、ネジ蓋をネジ固定するために別途ネジ条を有する注出口付き蓋部材を金属成形体の筒状開口部の上端に巻締めてもよい。
　突出部を蓋部材の取り付け形態に合わせることで、蓋部材をどのようなものとしても、金属成形体部分を保管、輸送する際の効率を向上することができる。 The metal molded product of the present invention such as the above-mentioned container 100 may be used as a can to which a lid member is attached after filling the inside with a beverage or the like.
The lid member may be any metal stain tab lid, a sheet made of a laminated body, a screw lid, or the like.
When the lid member is used as a stayion tab lid and wound around the upper end of the tubular opening, the upper end of the tubular opening of the metal molded body is trimmed for winding and then flanged to form a planar portion. It suffices if it is in a state of being.
When the lid member is bonded to the upper end of the tubular opening as a sheet made of a laminated body by heat or the like, the upper end of the tubular opening of the metal molded body may have a planar shape in order to secure the bonding area. good. Examples of the sheet made of the laminated body include aluminum foil, paper, a resin film, and a laminated material in which two or more kinds of these are laminated, and a heat adhesive layer (heat seal layer) may be further laminated. As the heat adhesive layer, a layer made of a known sealant film, a lacquer type adhesive, an easy peel adhesive, a hot melt adhesive, or the like can be adopted.
When the lid member is screw-fixed to the upper end of the tubular opening as a screw lid, it may have a thread on the protruding portion such as the upper end of the tubular opening of the metal molded body, and the screw lid is screw-fixed. A lid member with a spout having a separate thread may be wound around the upper end of the tubular opening of the metal molded body.
By matching the protruding portion to the mounting form of the lid member, it is possible to improve the efficiency of storing and transporting the metal molded body portion regardless of the lid member.
　以上、本発明の一実施形態に係る金属成形体（容器）について詳述したが、本発明の金属成形体は上述の実施形態に限定されるものではなく、請求の範囲に記載された本発明の要旨の範囲内において、種々の変更を加えることが可能である。
　例えば、テーパ部１１１は、単数の逆円錐台状のパネルからなることに限定されず、周方向に並べて配置された複数のパネルからなってもよい。この場合、テーパ部１１１の軸方向に対して垂直な断面の形状が、略多角形状、円弧と弦よりなる弓形状、円から弓形が欠けた欠円形状、およびこれらを組み合わせた形状となる。各パネルは胴部１１０の軸方向の全長にわたって滑らかに連続する形状の外周面および内周面を有する。このようなテーパ部としては、例えばダイヤカットされたものが挙げられる。
　テーパ部１１１の断面形状が略多角形状である場合、図６に示されるように、その多角形は例えば直線部１１１ｓと頂部１１１ｔとから構成されており、頂部１１１ｔは円弧から形成されている。円弧の曲率半径は２ｍｍ以上であり、２～５０ｍｍとされる。なお、直線部１１１ｓは頂部１１１ｔを構成する円弧よりも曲率半径の大きな緩やかな曲線から形成されていてもよい。 Although the metal molded body (container) according to the embodiment of the present invention has been described in detail above, the metal molded body of the present invention is not limited to the above-described embodiment, and the present invention described in the claims. It is possible to make various changes within the scope of the gist of.
For example, the tapered portion 111 is not limited to being composed of a single inverted cone-shaped panel, and may be composed of a plurality of panels arranged side by side in the circumferential direction. In this case, the shape of the cross section perpendicular to the axial direction of the tapered portion 111 is a substantially polygonal shape, a bow shape composed of an arc and a chord, a missing circle shape lacking a bow shape from a circle, and a shape combining these. Each panel has an outer peripheral surface and an inner peripheral surface having a shape that is smoothly continuous over the entire axial length of the body portion 110. Examples of such a tapered portion include a diamond-cut portion.
When the cross-sectional shape of the tapered portion 111 is a substantially polygonal shape, as shown in FIG. 6, the polygonal portion is composed of, for example, a straight portion 111s and a top portion 111t, and the top portion 111t is formed of an arc. The radius of curvature of the arc is 2 mm or more, and is 2 to 50 mm. The straight line portion 111s may be formed of a gentle curve having a radius of curvature larger than that of the arc constituting the top portion 111t.
　また、本発明の別の実施形態に係る金属成形体は、以下のような容器４００とすることもできる。本発明の別の実施形態に係る容器４００は、図７に示されるように、胴部１１０のくびれ部１１４の下端から連続する外側立ち上がり部４２２の下方に、下方に向かうに従って漸次縮径されるチャイム部４２７を備える構成の底部４２０を有するものであり、その他の構成は上記の本発明の一実施形態に係る容器１００と同様の構成を有する。図７においては、本発明の一実施形態に係る容器１００と同様の構成を有する部材に同じ符号を付した。
　具体的には、この容器４００の底部４２０は、容器上方（図７において上方）に凸となっているドーム部４２５と、このドーム部４２５よりも径方向外側において容器下方（図７において下方）に凸となっている断面が略樋状の環状の接地リム部４２１とを有する。接地リム部４２１は、容器４００が水平面Ｆに接地した正立状態で安定した直立形態が保持される形状とされ、水平面Ｆに載置した際に水平面Ｆと接する接地部４２３と、接地部４２３の上方かつ径方向の外方に延びる外側立ち上がり部４２２と、当該外側立ち上がり部４２２と接地部４２３との間に介在されて下方に向かうに従って漸次縮径されるチャイム部４２７と、接地部４２３の上方かつ径方向の内方に延びる内側立ち上がり部４２４とを有している。接地リム部４２１の外側立ち上がり部４２２は、胴部１１０のくびれ部１１４の下端に接続されている。
　ドーム部４２５および内側立ち上がり部４２４は、上記の一実施形態に係る容器１００におけるドーム部１２５および内側立ち上がり部１２４とそれぞれ同様のものである。
　外側立ち上がり部４２２は、チャイム部４２７の上端からくびれ部１１４の下端までの部分である。外側立ち上がり部４２２は、中心軸Ｘを含む断面視で単一の曲率半径を有する円弧状のものであり、中心軸Ｘを含む断面における円弧の曲率半径は０．５～５．０ｍｍとされ、本実施形態においては２．３ｍｍである。また、外側立ち上がり部４２２は、中心軸Ｘを含む断面視で複数の曲率半径部分からなる略円弧状のものであってもよい。 Further, the metal molded body according to another embodiment of the present invention can be a container 400 as shown below. As shown in FIG. 7, the container 400 according to another embodiment of the present invention is gradually reduced in diameter downward from the lower end of the constricted portion 114 of the body portion 110 to the lower side of the continuous outer rising portion 422. It has a bottom portion 420 having a configuration including a chime portion 427, and other configurations have the same configuration as the container 100 according to the embodiment of the present invention described above. In FIG. 7, members having the same structure as the container 100 according to the embodiment of the present invention are designated by the same reference numerals.
Specifically, the bottom portion 420 of the container 400 has a dome portion 425 that is convex upward (upper in FIG. 7) and a lower portion of the container (lower in FIG. 7) radially outside the dome portion 425. It has an annular ground rim portion 421 having a substantially gutter-shaped cross section having a convex shape. The grounding rim portion 421 has a shape in which a stable upright form is maintained in an upright state in which the container 400 is in contact with the horizontal plane F, and the grounding portion 423 and the grounding portion 423 that come into contact with the horizontal plane F when placed on the horizontal plane F. The outer rising portion 422 extending upward and radially outward, the chime portion 427 interposed between the outer rising portion 422 and the grounding portion 423 and gradually reducing the diameter as it goes downward, and the grounding portion 423. It has an inner rising portion 424 extending upward and inward in the radial direction. The outer rising portion 422 of the ground contact rim portion 421 is connected to the lower end of the constricted portion 114 of the body portion 110.
The dome portion 425 and the inner rising portion 424 are the same as the dome portion 125 and the inner rising portion 124 in the container 100 according to the above embodiment, respectively.
The outer rising portion 422 is a portion from the upper end of the chime portion 427 to the lower end of the constricted portion 114. The outer rising portion 422 has an arc shape having a single radius of curvature in a cross section including the central axis X, and the radius of curvature of the arc in the cross section including the central axis X is 0.5 to 5.0 mm. In this embodiment, it is 2.3 mm. Further, the outer rising portion 422 may have a substantially arc shape including a plurality of radius of curvature portions in a cross-sectional view including the central axis X.
１００、２００、３００、４００・・・容器
１１０　　　　　　　　　　　　・・・胴部
１１１　　　　　　　　　　　　・・・テーパ部
１１１ｓ　　　　　　　　　　　・・・直線部
１１１ｔ　　　　　　　　　　　・・・頂部
１１１ｚ　　　　　　　　　　　・・・テーパ部の最下端
１１２　　　　　　　　　　　　・・・突出部
１１４　　　　　　　　　　　　・・・くびれ部
１２０　　　　　　　　、４２０・・・底部
１２１　　　　　　　　、４２１・・・接地リム部
１２２　　　　　　　　、４２２・・・外側立ち上がり部
１２２ａ　　　　　　　　　　　・・・外側立ち上がり部の最上端
１２３　　　　　　　　、４２３・・・接地部
１２４　　　　　　　　、４２４・・・内側立ち上がり部
１２５　　　　　　　　、４２５・・・ドーム部
１２６　　　　　　　　　　　　・・・外周端
　　　　　　　　　　　　４２７・・・チャイム部
１３０　　　　　　　　　　　　・・・筒状開口部
１３１　　　　　　　　　　　　・・・肩部
　θ　　　　　　　　　　　　　・・・テーパ角
　Ｆ　　　　　　　　　　　　　・・・載置面
　Ｈ　　　　　　　　　　　　　・・・容器の高さ
　Ｌ　　　　　　　　　　　　　・・・仮想直線
　Ｔ　　　　　　　　　　　　　・・・突出高さ
　Ｘ　　　　　　　　　　　　　・・・中心軸
 
 
  100, 200, 300, 400 ... Container 110 ... Body 111 ... Tapered part 111s ... Straight part 111t ... Top 111z ... Bottom end of tapered part 112 ... Protruding part 114 ... Constriction 120, 420 ... Bottom 121, 421 ... Grounding rim 122, 422 ... Outer rising part 122a ... Uppermost end of outer rising part 123, 423 ... Grounding part 124, 424 ・ ・ ・ Inner rising part 125 ・ ・ ・ 425 ・ ・ ・ Dome part 126 ・ ・ ・ Outer peripheral end 427 ・ ・ ・ Chime part 130 ・ ・ ・ Cylindrical opening 131 ・ ・ ・ Shoulder part θ ・ ・ ・ Tapered angle F ・ ・・ Mounting surface H ・ ・ ・ Container height L ・ ・ ・ Virtual straight line T ・ ・ ・ Protruding height X ・ ・ ・ Central axis

Claims (11)

  1. 　底部と胴部と筒状開口部とを有する金属成形体であって、
    　前記底部が、外方かつ上方に延びる外側立ち上がり部を有し、
    　前記胴部が、上方に向かうに従って外方に広がるテーパ部と、内方に凸となるくびれ部とを有し、
    　前記くびれ部が、前記テーパ部と前記外側立ち上がり部との間に存在し、かつ、曲線で形成されていることを特徴とする金属成形体。     A metal molded body having a bottom, a body, and a cylindrical opening.
    The bottom has an outer rising portion that extends outward and upward.
    The body portion has a tapered portion that expands outward as it goes upward, and a constricted portion that becomes convex inward.
    A metal molded body in which the constricted portion exists between the tapered portion and the outer rising portion and is formed in a curved line.
  2. 　前記胴部の任意の位置の径が、前記外側立ち上がり部の最上端の径以上の大きさを有する請求項１に記載の金属成形体。 The metal molded body according to claim 1, wherein the diameter at an arbitrary position of the body portion has a diameter equal to or larger than the diameter of the uppermost end of the outer rising portion.
  3. 　前記外側立ち上がり部の曲率半径が０．５～５．０ｍｍである請求項１または請求項２に記載の金属成形体。 The metal molded body according to claim 1 or 2, wherein the radius of curvature of the outer rising portion is 0.5 to 5.0 mm.
  4. 　前記くびれ部を構成する曲線の曲率半径が１０～５００ｍｍである請求項１乃至請求項３のいずれかに記載の金属成形体。 The metal molded body according to any one of claims 1 to 3, wherein the radius of curvature of the curve constituting the constricted portion is 10 to 500 mm.
  5. 　前記テーパ部が、前記胴部の軸方向の全長にわたって連続的に拡径する請求項１乃至請求項４のいずれかに記載の金属成形体。 The metal molded body according to any one of claims 1 to 4, wherein the tapered portion continuously expands in diameter over the entire length in the axial direction of the body portion.
  6. 　前記テーパ部が、単数または周方向に並べて配置された複数のパネルからなる請求項１乃至請求項５のいずれかに記載の金属成形体。 The metal molded body according to any one of claims 1 to 5, wherein the tapered portions are singular or composed of a plurality of panels arranged side by side in the circumferential direction.
  7. 　前記パネルが、前記胴部の軸方向の全長にわたって滑らかに連続する形状の周面を有する請求項６に記載の金属成形体。 The metal molded body according to claim 6, wherein the panel has a peripheral surface having a shape that is smoothly continuous over the entire length in the axial direction of the body portion.
  8. 　前記テーパ部は、前記胴部の軸方向に対して垂直な断面の形状が円形状、略多角形状、およびこれらを組み合わせた形状である請求項１乃至請求項７のいずれかに記載の金属成形体。 The metal molding according to any one of claims 1 to 7, wherein the tapered portion has a circular shape, a substantially polygonal shape, and a shape obtained by combining these in a cross-sectional shape perpendicular to the axial direction of the body portion. body.
  9. 　前記金属成形体を上下方向に２つ重ねたとき、上方の金属成形体における前記外側立ち上がり部の外面が、下方の金属成形体における前記くびれ部の内面に当接する請求項１乃至請求項８のいずれかに記載の金属成形体。 13. The metal molded body according to any one.
  10. 　前記金属成形体を上下方向に２つ重ねたとき、上方の金属成形体における前記外側立ち上がり部の外面が、下方の金属成形体における前記テーパ部の下方部の内面に当接する請求項１乃至請求項９のいずれかに記載の金属成形体。 Claims 1 to claim that when two metal molded bodies are stacked in the vertical direction, the outer surface of the outer rising portion of the upper metal molded body abuts on the inner surface of the lower portion of the tapered portion of the lower metal molded body. Item 9. The metal molded body according to any one of Items 9.
  11. 　前記底部が、下方に凸となっている環状の接地リム部を有し、
    　前記接地リム部は、水平面に載置した際に当該水平面と接する接地部と、前記接地部の外方の上方に延びる外側立ち上がり部とを有する請求項１乃至請求項１０のいずれかに記載の金属成形体。
     
     
          The bottom portion has an annular grounding rim portion that is convex downward.
    7. Metal molded body.
PCT/JP2021/036903 2020-11-17 2021-10-06 Metal molded body WO2022107471A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-190807 2020-11-17
JP2020190807A JP2022079930A (en) 2020-11-17 2020-11-17 Metal molded body

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WO2022107471A1 true WO2022107471A1 (en) 2022-05-27

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JP (1) JP2022079930A (en)
TW (1) TW202225044A (en)
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4877443U (en) * 1971-12-29 1973-09-25
JPS57120433U (en) * 1981-01-22 1982-07-27
JP2001139012A (en) * 1999-11-12 2001-05-22 Mitsubishi Materials Corp Can
JP2017136605A (en) * 2016-02-01 2017-08-10 ユニバーサル製缶株式会社 Manufacturing method of can
US20190112100A1 (en) * 2017-02-07 2019-04-18 Ball Corporation Tapered metal cup and method of forming the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4877443U (en) * 1971-12-29 1973-09-25
JPS57120433U (en) * 1981-01-22 1982-07-27
JP2001139012A (en) * 1999-11-12 2001-05-22 Mitsubishi Materials Corp Can
JP2017136605A (en) * 2016-02-01 2017-08-10 ユニバーサル製缶株式会社 Manufacturing method of can
US20190112100A1 (en) * 2017-02-07 2019-04-18 Ball Corporation Tapered metal cup and method of forming the same

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JP2022079930A (en) 2022-05-27

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