EP0228556A2 - Cartouche d'étanchéité et procédé pour sa fabrication - Google Patents

Cartouche d'étanchéité et procédé pour sa fabrication Download PDF

Info

Publication number
EP0228556A2
EP0228556A2 EP86116079A EP86116079A EP0228556A2 EP 0228556 A2 EP0228556 A2 EP 0228556A2 EP 86116079 A EP86116079 A EP 86116079A EP 86116079 A EP86116079 A EP 86116079A EP 0228556 A2 EP0228556 A2 EP 0228556A2
Authority
EP
European Patent Office
Prior art keywords
cartridge body
shoulder
cartridge
heat
sealant
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
EP86116079A
Other languages
German (de)
English (en)
Other versions
EP0228556A3 (en
EP0228556B1 (fr
Inventor
Motoaki Kadono
Kazutoyo Hashimura
Tamotsu Kobayashi
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.)
DuPont Toray Specialty Materials KK
Original Assignee
Toray Silicone Co 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
Application filed by Toray Silicone Co Ltd filed Critical Toray Silicone Co Ltd
Publication of EP0228556A2 publication Critical patent/EP0228556A2/fr
Publication of EP0228556A3 publication Critical patent/EP0228556A3/en
Application granted granted Critical
Publication of EP0228556B1 publication Critical patent/EP0228556B1/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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/76—Containers or packages with special means for dispensing contents for dispensing fluent contents by means of a piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/34—Coverings or external coatings
    • B65D25/36—Coverings or external coatings formed by applying sheet material

Definitions

  • the present invention relates to a sealant cartridge in which a cylindrical cartridge body has been inserted into a tube of a heat-shrinkable resin film and said resin film then heat-shrunk.
  • sealant cartridges used for sealant storage and application consist of a cylindrical cartridge body with a shoulder, the latter having an extrusion part, and a plunger inserted into the opening at the back end.
  • the external surface of the cartridge body of such a sealant cartridge must be printed with, for example, a trademark, the names of the manufacturer and/or distributor, use instructions and, a pattern,
  • this makes mass production difficult and, moreover, it is difficult to obtain a sharp image when the cartridge material is a thermoplastic resin.
  • sealant cartridges are used in which the cylindrical cartridge body has been inserted into a tube of a heat-shrinkable resin film and the resin film then heat-shrunk.
  • the external surface of the cartridge body is not imprinted, and the trademark, pattern, etc., are printed on the heat-shrinkable resin film tube.
  • Figure 1 is a longitudinal cross-section of one embodiment of the sealant cartridge of the present invention.
  • Figure 2 is a plane diagram of said sealant cartridge.
  • the object of the present invention is to provide a sealant cartridge in which the tube of heat-shrunk resin film will not slip or be displaced axially, and will not slip from the cartridge body.
  • the cartridge body of such a sealant cartridge is not to be displaced axially and should not slip from the tube of heat-shrunk resin film.
  • the present invention relates to a sealant cartridge comprising an extrusion part on a shoulder of a cylindrical cartridge body in which the shoulder joins the extrusion part and the cylindrical cartridge body and the outside diameter of said cartridge body increases in the direction of the shoulder while its inside diameter remains constant along the length, a heat-shrunk resin film covers at least part of the cylindrical cartridge body extending toward the extrusion part of said cartridge and covering the outer margin of the shoulder.
  • the present invention also relates to a method of making a sealant cartridge comprising inserting a heat-­shrinkable resin film tube over a cylindrical cartridge body in which there is an extrusion part on a shoulder of the cylindrical cartridge body and the shoulder joining the extrusion part to the cylindrical cartridge body where the outside diameter of said cartridge body increases in the direction of the shoulder while the inside diameter of the cartridge body remains constant along the length of the cartridge, and thereafter heating and positioning said resin tube such that the resultant heat-shrunk resin film covers at least part of the cylindrical cartridge body extending toward the extrusion part of said cartridge and covering the outer margin of the shoulder.
  • the outside diameter of the cartridge body increases in the direction of the shoulder while the inside diameter remains constant along the length. This prevents movement of the cartridge body within the heat-shrunk resin film tube: the extrusion part of the cartridge body is prevented from moving back into the tube of heat-shrunk resin film.
  • the end edge of said resin film covers the outer margin of the shoulder of said cartridge body. This also prevents movement of the cartridge body within the heat-shrunk resin film tube: the plunger end of the cartridge is prevented from moving forward in the tube of heat-shrunk resin film.
  • FIG. 1 is a longitudinal cross section of one embodiment of the sealant cartridge of the present invention.
  • Swealant for example, a single-package silicone sealant, a single-package polyurethane sealant, a single-package polysuflide sealant, or acrylic sealant, is filled into cartridge body 11 and plunger 12, which is used to extrude the sealant, is inserted at the back end.
  • Extrusion part 14 is formed on shoulder 12 of cartridge body 11. Screw threads are formed on the outer circumference of the extrusion part 14 and a moistureproof film 15 is attached over the extrusion tip of extrusion part 14 in order to close off the opening.
  • a sealant extrusion discharge nozzle 16 is screwed onto the outer circumference of extrusion part 14.
  • the cartridge body is thinly formed throughout and its outside diameter gradually increases in the direction of shoulder 12 while the inside diameter remains constant along the length.
  • cartridge body 11 is about 1.3-fold thicker at its topmost extremity (extrusion part end) than at its rearmost point (plunger end).
  • This thickness ratio, topmost extremity to rearmost point is preferably 1.1 to 1.7.
  • Resins to be molded into the cartridge body 11 are preferably thermoplastic resins such as polyethylene or polypropylene.
  • the preferred molding methods are injection molding and blow molding.
  • cartridge body 11 will not carry printing, but a trademark or pattern can be printed thereon when the heat-shrunk resin film tube 17 is transparent.
  • the cartridge body 11 is inserted into a heat-­shrinkable resin film tube and this film is then heat-shrunk in order to cling to the external surface of cartridge body 11.
  • the end of the heat-shrinkable resin tube extending toward the extrusion part of the cartridge is positioned such that it covers the outer margin of shoulder 12 of cartridge body 11.
  • the edge of the heat-shrunk resin film which covers the outer margin of shoulder 18 may contact the base of extrusion part 14.
  • This heat-shrunk resin film tube 17 which covers at least part of the cylindrical cartridge body 11 is to be printed with the brand name, name of the manufacturer and/or distributor, use instructions, volume, patterns, etc. (none of which are illustrated), and it may be transparent, translucent, or opaque.
  • the present sealant cartridge also encompasses the case in which the extrusion part is itself directly formed into a nozzle.
  • the sealant cartridge of the present invention is distinguished in that the outside diameter of the cartridge body increases in the direction of the tip while the inside diameter remains constant along the length; and in that the end edge of said resin film tube covers the outer margin of the shoulder of said cartridge body.
  • the tube of heat-shrunk resin film will not slip or be displaced axially along the cartridge body, nor will it come off the cartridge body. Or in other words, the cartridge body will not be axially displaced and will not slip from the tube of heat-shrunk resin film.
  • the sliding operation will be smooth and leakage of sealant from between the plunger and cartridge body will be prevented. Consequently, packing and application operations using the present sealant cartridge will be easy, reliable, and rapid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tubes (AREA)
  • Packages (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
EP86116079A 1985-12-09 1986-11-20 Cartouche d'étanchéité et procédé pour sa fabrication Expired - Lifetime EP0228556B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP189207/85 1985-12-09
JP1985189207U JPH0235649Y2 (fr) 1985-12-09 1985-12-09

Publications (3)

Publication Number Publication Date
EP0228556A2 true EP0228556A2 (fr) 1987-07-15
EP0228556A3 EP0228556A3 (en) 1988-11-09
EP0228556B1 EP0228556B1 (fr) 1990-08-08

Family

ID=16237326

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86116079A Expired - Lifetime EP0228556B1 (fr) 1985-12-09 1986-11-20 Cartouche d'étanchéité et procédé pour sa fabrication

Country Status (6)

Country Link
EP (1) EP0228556B1 (fr)
JP (1) JPH0235649Y2 (fr)
KR (1) KR870005777A (fr)
AU (1) AU598494B2 (fr)
BR (1) BR8606032A (fr)
DE (1) DE3673368D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2781468A1 (fr) * 1998-07-27 2000-01-28 Pascal Chenneviere Dispositif de conditionnement et de dosage de produit sous forme de creme.
EP1118553A1 (fr) * 1999-12-15 2001-07-25 Riso Kagaku Corporation Conteneur à volume variable
US6899028B2 (en) 1999-12-15 2005-05-31 Riso Kagaku Corporation Container

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002145289A (ja) * 2000-11-09 2002-05-22 Hosokawa Yoko Co Ltd 流動性物質用容器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU472890B1 (fr) * 1970-10-12 1972-04-13 Masaaki Fujio
JPS591352A (ja) * 1982-06-15 1984-01-06 大倉工業株式会社 多層フイルムを被覆した炭酸飲料用延伸ブロ−容器
DE3405547A1 (de) * 1984-02-16 1985-08-14 Hilti Ag, Schaan Auspresskolben fuer behaelter
DE8512062U1 (de) * 1985-04-24 1985-06-05 Schieferdecker Gmbh & Co Kg, 4006 Erkrath Behälter
JPS629932A (ja) * 1985-07-05 1987-01-17 Shinko Kagaku Kk シ−ラント用プラスチック製カートリッジ

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2781468A1 (fr) * 1998-07-27 2000-01-28 Pascal Chenneviere Dispositif de conditionnement et de dosage de produit sous forme de creme.
EP1118553A1 (fr) * 1999-12-15 2001-07-25 Riso Kagaku Corporation Conteneur à volume variable
US6578482B2 (en) 1999-12-15 2003-06-17 Riso Kagaku Corporation Variable volume container
US6899028B2 (en) 1999-12-15 2005-05-31 Riso Kagaku Corporation Container

Also Published As

Publication number Publication date
JPS6299551U (fr) 1987-06-25
AU598494B2 (en) 1990-06-28
JPH0235649Y2 (fr) 1990-09-27
EP0228556A3 (en) 1988-11-09
BR8606032A (pt) 1987-09-15
DE3673368D1 (de) 1990-09-13
AU6618886A (en) 1987-06-11
EP0228556B1 (fr) 1990-08-08
KR870005777A (ko) 1987-07-07

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