EP0505587A1 - Boîte pliante étanche à l'air - Google Patents

Boîte pliante étanche à l'air Download PDF

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Publication number
EP0505587A1
EP0505587A1 EP91104679A EP91104679A EP0505587A1 EP 0505587 A1 EP0505587 A1 EP 0505587A1 EP 91104679 A EP91104679 A EP 91104679A EP 91104679 A EP91104679 A EP 91104679A EP 0505587 A1 EP0505587 A1 EP 0505587A1
Authority
EP
European Patent Office
Prior art keywords
board
flaps
airtight container
flat sheet
sticked
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.)
Granted
Application number
EP91104679A
Other languages
German (de)
English (en)
Other versions
EP0505587B1 (fr
Inventor
Hiroyasu Nagata
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.)
Box KK
Original Assignee
Box KK
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
Application filed by Box KK filed Critical Box KK
Priority to DE1991610271 priority Critical patent/DE69110271T2/de
Priority to EP19910104679 priority patent/EP0505587B1/fr
Publication of EP0505587A1 publication Critical patent/EP0505587A1/fr
Application granted granted Critical
Publication of EP0505587B1 publication Critical patent/EP0505587B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/06—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end-closing or contents-supporting elements formed by folding inwardly a wall extending from, and continuously around, an end of the tubular body

Definitions

  • the present invention relates to a folding airtight container to be assembled by a board including plastic corrugated cardboards and a method for manufacturing the same.
  • an airtight container comprising a board and heat-fusible plastic films sticked to the board wherein inner and outer liners of the board are fused for serving as joiing margins while the cores provided at the peripheral side ends of the board (hereinafter referred to as cores) are eliminated.
  • the conventional folding airtight container has a problem that it takes much time and labour for eliminating the cores.
  • the present invention has been made to solve the problem and to provide a folding airtight container and a method for manufacturing the same without eliminating the cores.
  • the folding airtight container according to the present invention is characterized in comprising a box-shaped board having flaps provided at both the top and bottom ends of the front and rear surface walls and left and right side walls, a heat-fusible airtight flat sheet formed substantially in square shape, the flat sheet being sticked to the box-shaped board and protruded from the board for forming sealing pieces at the ends thereof.
  • the method for manufacturing the folding airtight container according to the present invention comprises the steps of forming a sheet-shaped board by a corrugating machine, forming the board into a box-shape, forming a flat body protruding from the ends of the box-shaped cardboard, the flat sheet being made of a heat-fusible airtight material and sticking the flat body to at least one inner or outer surface of the board for serving as sealing pieces.
  • the folding airtight container With the arrangement of the folding airtight container, it is possible to form thin sealing pieces without eliminating the cores of the board and possible to seal each of the sealing pieces by heat-fusing or adhesive agent with assurance and without leaking the container contained therein.
  • FIG. 1 A folding airtight container according to a first embodiment of the present invention will be described with reference to Figs. 1 to 3.
  • a folding airtight container V comprises a board 1 having substantially rectangular shape and formed in a boxed-shape, a rectangular flat sheet 3 sticked to the inside surface of the box-shaped board 1 (the sticking portion are denoted at one dotted line in Fig. 1), wherein the flat sheet 3 is protruded from the board 1 at the top and bottom ends and one side end thereof and the protruded portions forming sealing pieces 5, 7 and 7. There is protruded a joining margin 8 forming a sealing piece 5a at another side end of the board 1 to which the flat sheet 3 is not sticked. The sealing piece 5a can be peeled off.
  • the board 1 has rules to be folded, described later, but has no cutting lines or perforations.
  • the board 1 has wide front and rear surface walls 13 and 13 at the middle portion thereof and narrow left and right side walls 15 and 15 respectiely defined by upper and lower rules 9 and 9 and four vertical rules 11 wherein flaps 17 and 19 are provided at upper and lower portions of the walls 13 and 15 and continued laterally to each other.
  • the sealing pieces 5 and 5a provided at both the left and right ends thereof are joined and subjected to heat-fusing, thereafter the resulant heat-fused sealing pieces 5 and 5a are sticked to the front surface wall 13 and the joining margin 8 is sticked thereto (Fig. 3).
  • the folding airtight container assembled in such a square tubular shape is folded flatly and supplied to users.
  • the users fuse the sealing pieces 7 and 7 confronted at the lower portion of the board 1 by heat and fold the flaps 19 for forming triangular bandages 19a while the flaps 17 are closed and the triangular bandage 19a are sticked to the side walls 15.
  • the folding airtight container forms a cover at the upper portion thereof after filling the material therein in the same manner as forming the triangular bandages 19a.
  • the triangular bandages 19a can, as shown in two-dotted lines, be sticked to the flaps 17. In any case, a sticking piece 7a provided at one of the sealing pieces 7 and 7 is fallen down.
  • the board 1 is manufactured by a corrugating machine which board 1 is formed in a boxed-shape and the flat sheet 3 having an inner surface made of paper and an outer surface made of heat-fusible plastic film is sticked to the board 1 at the inner side surface thereof.
  • the flat sheet 3 may be made of heat-fusible plastic films at both surfaces thereof.
  • a folding airtight container according to a second embodiment will be described with reference to Figs. 4 to 6. Elements same as those in the first embodiment have same numerals and explanation thereof is omitted.
  • the flaps 19 of the left and right side walls 15 are positioned under the flaps 17 of the front and rear walls 13 so that the flaps 19 can form the isosceles triangles and connection pieces 23 and 23 for connecting the flaps 19 with the flaps 17 are formed at the lower ends of the flaps 19 and the flaps 17 so that the flaps 19 and 17 are interlocked with each other when they are folded.
  • One of the flaps 17 has a non-sticking portion 22 at the tip end thereof to which the flat sheet 3 is not sticked.
  • sticking piece 7a in one of the sealing pieces 7 and 7 which piece 7a can be inserted into the gap between the non-sticking portion 22 and the flat sheet 3 so that a tape 24 is liable to stick to the upper portion of the non-sticking portion 22 different from the case where the sticking piece 7a is exposed.
  • Cutting slits 26 are formed between the flaps 17 and 18 same as type A of the manufacturing method of the corrugated cardboards according to Japanese Industrial Standards.
  • the flaps 17 and 19 can be peeled off from the flat sheet 3 without impeding the formation of the lower cover by the flat sheet 3 while only the flaps 19 can stick to the flat sheet 3 at the isosceles triangular bandage 19a formed by the flaps 19 which isosceles triangular bandage 19a having the bases thereof by demarcating line 9a demarcating the side walls 15.
  • a folding airtight container according to a third embodiment will be described with reference to Figs. 7 to 9. Elements same as those in the first and second embodiments have same numerals and explanation thereof is omitted.
  • the arrangements of the board 1 and the flat sheet 3 are substantially same as those of the first embodiment excepting that there are provided vertical rules 25 for folding purpose.
  • the relation between the flat sheet 3 and the flaps 19 of the left and right side walls 15 and the flaps 17 of the front and rear walls 13 are as follows.
  • the flaps 17 can be peeled off from the flat sheet 3 so that the flaps 19 are folded under the flaps 17 and the flaps 19 are sticked to the flat sheet 3 at the isosceles triangular bandage 19a formed by the flaps 19 which isosceles triangular bandage 19a having the bases thereof by demarcating line 9a demarcating the side walls 15.
  • a folding airtight container according to a fourth embodiment will be described with reference to Figs. 10 to 12. Elements same as those in the first to third embodiments have same numerals and explanation thereof is omitted.
  • An arrangement of the folding airtight container of the fourth embodiment is substantially same as that of the folding airtight container of the second embodiment excepting that the flat sheet 3 is formed in a bag shape and sticked partially to the board 1. With such an arrangement, the board 1 can be reused by peeling off the used flat sheet 3 and substituted by new flat sheet 3.
  • the folding airtight containers according to the first to fourth embodiments have the following advantages. Firstly, it is possible to form thin sealing pieces to which pressure is easily applied without eliminating the cores of the board. Secondly, it is possible to carry out the sealing of the airtight container which enhances the packing operation with assuarance at the work site by connecting the sealing pieces by heat-fusing or the adhesive agent.
  • the folding airtight container with ease and simlicity so that the folding airtight container can be adapted for mass production with low cost.
  • the board set forth in the first to fourth embodiments of the present invention is typically represented by a corrugated cardboard including a plastic corrugated board but it may include a thick paper, a cardboard, a resin sheet, a resin plate, a resin board, a plywood and a fiber board and the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
EP19910104679 1991-03-25 1991-03-25 Boîte pliante étanche à l'air Expired - Lifetime EP0505587B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE1991610271 DE69110271T2 (de) 1991-03-25 1991-03-25 Luftdichter Faltbehälter.
EP19910104679 EP0505587B1 (fr) 1991-03-25 1991-03-25 Boîte pliante étanche à l'air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19910104679 EP0505587B1 (fr) 1991-03-25 1991-03-25 Boîte pliante étanche à l'air

Publications (2)

Publication Number Publication Date
EP0505587A1 true EP0505587A1 (fr) 1992-09-30
EP0505587B1 EP0505587B1 (fr) 1995-06-07

Family

ID=8206569

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910104679 Expired - Lifetime EP0505587B1 (fr) 1991-03-25 1991-03-25 Boîte pliante étanche à l'air

Country Status (2)

Country Link
EP (1) EP0505587B1 (fr)
DE (1) DE69110271T2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1001844C2 (nl) * 1995-12-07 1997-06-10 Crystal Bv Werkwijze voor het vervaardigen van een vloeistof-dichte doos en een doos verkregen met behulp van de werkwijze.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2412447A1 (de) * 1973-03-16 1974-09-26 Christenssons Maskiner Fluessigkeits- und gasdichter behaelter und verfahren und vorrichtung zur herstellung desselben
EP0079155A2 (fr) * 1981-11-11 1983-05-18 Hokkai Can Co., Ltd. Récipient auto-dressable à doubles parois

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2412447A1 (de) * 1973-03-16 1974-09-26 Christenssons Maskiner Fluessigkeits- und gasdichter behaelter und verfahren und vorrichtung zur herstellung desselben
EP0079155A2 (fr) * 1981-11-11 1983-05-18 Hokkai Can Co., Ltd. Récipient auto-dressable à doubles parois

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1001844C2 (nl) * 1995-12-07 1997-06-10 Crystal Bv Werkwijze voor het vervaardigen van een vloeistof-dichte doos en een doos verkregen met behulp van de werkwijze.
EP0778210A1 (fr) * 1995-12-07 1997-06-11 Crystal B.V. Procédé pour la fabrication d'une boîte étanche aux liquides

Also Published As

Publication number Publication date
DE69110271D1 (de) 1995-07-13
DE69110271T2 (de) 1995-10-19
EP0505587B1 (fr) 1995-06-07

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