EP0371566A1 - Pack for a fragil tubular object - Google Patents

Pack for a fragil tubular object Download PDF

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Publication number
EP0371566A1
EP0371566A1 EP89203025A EP89203025A EP0371566A1 EP 0371566 A1 EP0371566 A1 EP 0371566A1 EP 89203025 A EP89203025 A EP 89203025A EP 89203025 A EP89203025 A EP 89203025A EP 0371566 A1 EP0371566 A1 EP 0371566A1
Authority
EP
European Patent Office
Prior art keywords
carrying tube
supporting elements
pack
supporting
axial direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP89203025A
Other languages
German (de)
French (fr)
Inventor
Anthonius Nabuurs
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.)
Stork Screens BV
Original Assignee
Stork Screens BV
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 Stork Screens BV filed Critical Stork Screens BV
Publication of EP0371566A1 publication Critical patent/EP0371566A1/en
Ceased 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D81/107—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using blocks of shock-absorbing material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/54—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles of special shape not otherwise provided for

Definitions

  • the present invention relates to a pack for a fragile tubular object, which is provided at both ends with relati­vely heavy end rings.
  • the application relates to a pack for a cylindrical screen of a rotary screen printing device.
  • Such a screen consists of a very thin cylinder which is 0.055 mm, bearing picture information in the form of a lacquer pattern and having at both ends an aluminum ring weighing 2.5 kg.
  • the screen cylinder is of the highmesh-type, made by welding flat high-mesh material into cylinders using a laser and subsequently carrying out the picture transfer process.
  • the object of the invention is to produce a pack with which damage during handling, transport and storage is avoided in a reliable manner.
  • the pack comprises a carrying tube of a relatively rigid material enclosing the object at a distance, said carrying tube being provided at both ends with supporting elements which are fixed relative to the carrying tube, and which support each of the end rings of the object in the radial direction and in at least one axial direction directed towards the opposite end ring.
  • the suppor­ ting elements each have a part lying against the outer periphery of the carrying tube which projects in the axial direction beyond the carrying tube, a casing being provided which lies at a distance from the carrying tube and rests against the outermost parts of the supporting elements, said casing containing end partitions which rest against axially projecting parts of the supporting elements when the pack is assembled.
  • the cylindrical wall of the object is surrounded by a double-walled structure, while the outermost parts of the supporting elements serve as spacers between the walls which are spaced apart.
  • Each supporting element is preferably provided with a supporting leg extending inwards from the outermost part through an aperture in the carrying tube until it is in contact with the corresponding end ring of the object.
  • the supporting leg can in this way be pushed through an aperture provided or prepared beforehand in the supporting frame, as a result of which these supporting elements are also fixed relative to the carrying tube.
  • a fragile tubular object to be packed consisting of a cylinder 1 which is provided at both ends with a relatively heavy end ring 2, is surrounded by a carrying tube 3 which is made of a relatively rigid material such as corrugated cardboard.
  • the carrying tube 3 is provi­ded at both ends with a number of supporting elements 4 which are made of a plastic foam material such as polythene.
  • each supporting element 4 is made up of an angular part 5 which rests against the outside of the carrying tube 3 and grips round each of the corner points thereof.
  • Four supporting elements are therefore present at each end of the carrying tube.
  • Each supporting element is provided with a supporting leg 6, which extends from the inside of the angular part 5 through an aperture provided beforehand in the carrying tube, and with its end comes into contact with one of the end rings 2 of the object to be packed, in order to support this end ring in the radial and axial direction.
  • the angular parts 5 also project in the axial direction slightly beyond the carrying tube 3.
  • a casing 7 is provided round the carrying tube 3, which casing rests against the outside of the angular parts 5 of the supporting elements, and is thus situated a distance away from the carrying tube 3, the casing 7 and the carrying tube 3 forming a double-walled structure in which the parts 5 form spacers between said walls.
  • the casing 7 has a cross-section corresponding to the cross-section of the carrying tube 3 and projects in the axial direction a little beyond the supporting elements 4.
  • the casing also has end partitions 8 forming the end sides of the casing. These end partitions rest against the axial ends of the supporting elements 4 and are fixed to the casing by means of staples 9.
  • each supporting element projec­ting radially beyond the carrying tube 3 there is also a radially inward-facing part 10 which extends past the outer periphery of the end rings and can, if desired, be made integral with the supporting element 4.
  • This part 10 toge­ther with the axial end of the part 5 forms a stop face for the end partition 8.
  • the parts 10 can be designed as a single rectangular plate which is provided with a central aperture, and in which the angular parts 5 of the four supporting elements grip round each corner point of the plate.
  • the object shown in the drawing has end rings which are provided with a radially projecting flange.
  • end rings which are provided with a radially projecting flange.
  • four supporting legs always grip behind each flange in such a way that the object is fixed in the axial direction and the cylinder 1 of the object in that state is held in position so that the cylinder 1 is relieved of the pressure forces exerted thereon by the end rings.
  • the packing of a fragile object takes place in the following manner.
  • the four supporting elements are fitted by inserting them by their supporting leg 6 into an aperture made previously therein.
  • the apertures can also be prepared in such a way that a piece of cardboard is taken in with the supporting leg, as shown in Fig. 3 by reference numeral 11.
  • the object is then inserted into the carrying tube from the side where the supporting elements are fitted until the flange of the end ring rests against the supporting legs.
  • the supporting elements are fitted at the other end of the carrying tube, in such a way that their supporting legs grip behind the flange of the other end ring.
  • the fragile cylin­der of the object is thus held stretched in the axial direction between the supporting legs, so that this cylinder is relieved of impact and pressure forces. Thereafter the casing 7 made of, for example, corrugated cardboard is fitted, and the end partitions 8 are stapled down.
  • the pack now forms a rigid unit which can withstand a falling test of 1.2 m without damage to the object, and in which the end rings exert no forces on the fragile cylinder during transportation.
  • the object to be packed is fully supported by the supporting elements, it is possible to include objects with a difference in diameter of approximately 20 mm in the same pack. In this case the supporting elements are compressed to a greater or lesser extent.
  • the pack described above can also be used for other objects such as, for example, a thin-walled glass tube with metal end rings.
  • the carrying tube can also have, for example, a cylindrical cross-section, while the number and shape of the supporting elements can vary.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Buffer Packaging (AREA)

Abstract

Pack for a fragile tubular object (1) with relatively heavy end rings (2) comprising a carrying tube (3) enclosing the object (1) at a distance and having at both ends supporting elements (4) which are fixed relative to the carrying tube (3) and which support each of the end rings (2) in the radial direction and in at least one axial direction.

Description

  • The present invention relates to a pack for a fragile tubular object, which is provided at both ends with relati­vely heavy end rings. In particular, the application relates to a pack for a cylindrical screen of a rotary screen printing device. Such a screen consists of a very thin cylinder which is 0.055 mm, bearing picture information in the form of a lacquer pattern and having at both ends an aluminum ring weighing 2.5 kg. The screen cylinder is of the highmesh-type, made by welding flat high-mesh material into cylinders using a laser and subsequently carrying out the picture transfer process. This produces an extremely fragi­le, high-grade product which, due to the glued-in aluminum end rings of relatively great weight, can easily be damaged beyond repair if subjected to shock or impact stress. This risky shock or impact stress arises, for example, during transportation of the finished product to the customers.
  • The object of the invention is to produce a pack with which damage during handling, transport and storage is avoided in a reliable manner. This object is achieved according to the invention in that the pack comprises a carrying tube of a relatively rigid material enclosing the object at a distance, said carrying tube being provided at both ends with supporting elements which are fixed relative to the carrying tube, and which support each of the end rings of the object in the radial direction and in at least one axial direction directed towards the opposite end ring. In this way the fragile cylindrical wall of the object is suspended completely free inside the pack, while pressure stresses on the cylindrical wall of the aluminum end rings are absorbed by the carrying tube via the supporting ele­ments, and thus do not act on the cylindrical wall.
  • In a preferred embodiment of the invention, the suppor­ ting elements each have a part lying against the outer periphery of the carrying tube which projects in the axial direction beyond the carrying tube, a casing being provided which lies at a distance from the carrying tube and rests against the outermost parts of the supporting elements, said casing containing end partitions which rest against axially projecting parts of the supporting elements when the pack is assembled. In this way the cylindrical wall of the object is surrounded by a double-walled structure, while the outermost parts of the supporting elements serve as spacers between the walls which are spaced apart.
  • Each supporting element is preferably provided with a supporting leg extending inwards from the outermost part through an aperture in the carrying tube until it is in contact with the corresponding end ring of the object. The supporting leg can in this way be pushed through an aperture provided or prepared beforehand in the supporting frame, as a result of which these supporting elements are also fixed relative to the carrying tube.
  • The invention will be elucidated with reference to the appended drawing, in which:
    • Fig. 1 shows a cutaway perspective view of the pack according to the invention containing an object to be packed therein;
    • Fig. 2 is a cross-section along the line II-II in Fig. 1; and
    • Fig. 3 shows on an enlarged scale the detail III of Fig. 2.
  • As Fig. 1 shows clearly, a fragile tubular object to be packed, consisting of a cylinder 1 which is provided at both ends with a relatively heavy end ring 2, is surrounded by a carrying tube 3 which is made of a relatively rigid material such as corrugated cardboard. The carrying tube 3 is provi­ded at both ends with a number of supporting elements 4 which are made of a plastic foam material such as polythene.
  • In the embodiment shown in the drawing the carrying tube 3 has a rectangular cross-section, and each supporting element 4 is made up of an angular part 5 which rests against the outside of the carrying tube 3 and grips round each of the corner points thereof. Four supporting elements are therefore present at each end of the carrying tube. Each supporting element is provided with a supporting leg 6, which extends from the inside of the angular part 5 through an aperture provided beforehand in the carrying tube, and with its end comes into contact with one of the end rings 2 of the object to be packed, in order to support this end ring in the radial and axial direction. The angular parts 5 also project in the axial direction slightly beyond the carrying tube 3.
  • A casing 7 is provided round the carrying tube 3, which casing rests against the outside of the angular parts 5 of the supporting elements, and is thus situated a distance away from the carrying tube 3, the casing 7 and the carrying tube 3 forming a double-walled structure in which the parts 5 form spacers between said walls. The casing 7 has a cross-section corresponding to the cross-section of the carrying tube 3 and projects in the axial direction a little beyond the supporting elements 4. The casing also has end partitions 8 forming the end sides of the casing. These end partitions rest against the axial ends of the supporting elements 4 and are fixed to the casing by means of staples 9.
  • Fixed on the parts of each supporting element projec­ting radially beyond the carrying tube 3 there is also a radially inward-facing part 10 which extends past the outer periphery of the end rings and can, if desired, be made integral with the supporting element 4. This part 10 toge­ther with the axial end of the part 5 forms a stop face for the end partition 8. The parts 10 can be designed as a single rectangular plate which is provided with a central aperture, and in which the angular parts 5 of the four supporting elements grip round each corner point of the plate.
  • The object shown in the drawing has end rings which are provided with a radially projecting flange. As can be seen in Fig. 2, four supporting legs always grip behind each flange in such a way that the object is fixed in the axial direction and the cylinder 1 of the object in that state is held in position so that the cylinder 1 is relieved of the pressure forces exerted thereon by the end rings.
  • The packing of a fragile object takes place in the following manner. At one end of the carrying tube the four supporting elements are fitted by inserting them by their supporting leg 6 into an aperture made previously therein. The apertures can also be prepared in such a way that a piece of cardboard is taken in with the supporting leg, as shown in Fig. 3 by reference numeral 11. The object is then inserted into the carrying tube from the side where the supporting elements are fitted until the flange of the end ring rests against the supporting legs. After this, the supporting elements are fitted at the other end of the carrying tube, in such a way that their supporting legs grip behind the flange of the other end ring. The fragile cylin­der of the object is thus held stretched in the axial direction between the supporting legs, so that this cylinder is relieved of impact and pressure forces. Thereafter the casing 7 made of, for example, corrugated cardboard is fitted, and the end partitions 8 are stapled down.
  • The pack now forms a rigid unit which can withstand a falling test of 1.2 m without damage to the object, and in which the end rings exert no forces on the fragile cylinder during transportation.
  • Since the object to be packed is fully supported by the supporting elements, it is possible to include objects with a difference in diameter of approximately 20 mm in the same pack. In this case the supporting elements are compressed to a greater or lesser extent.
  • The pack described above can also be used for other objects such as, for example, a thin-walled glass tube with metal end rings.
  • It will be clear that the pack according to the inven­tion is not restricted to the embodiment described and shown here. The carrying tube can also have, for example, a cylindrical cross-section, while the number and shape of the supporting elements can vary.

Claims (5)

1. Pack for a fragile tubular object (1) which is provided at both ends with relatively heavy end rings (2), characte­rized in that the pack comprises a carrying tube (3) of a relatively rigid material enclosing the object (1) at a distance, said carrying tube (3) being provided at both ends with supporting elements (4) which are fixed relative to the carrying tube (3), and which support each of the end rings (2) of the object in the radial direction and in at least one axial direction directed towards the opposite end ring.
2. Pack according to Claim 1, characterized in that the supporting elements (4) each have a part (5) lying against the outer periphery of the carrying tube (3) which projects in the axial direction beyond the carrying tube, a casing (7) being provided which lies at a distance from the carry­ing tube (3) and rests against the outermost parts of the supporting elements (4), said casing (7) comprising end partitions (8) which rest against axially projecting parts (10) of the supporting elements (4) when the pack is assem­bled.
3. Pack according to Claim 2, characterized in that the outermost parts of the supporting elements (4) project in the axial direction beyond the carrying tube (3) and from this projecting part there is a radially inward running part (10) which extends past the outer periphery of a correspon­ding end ring (2).
4. Pack according to one or more of the preceding Claims 1-3, characterized in that each supporting element is provided with a supporting leg (6) extending inwards from the outermost part through an aperture in the carrying tube (3) until it is in contact with the corresponding end ring (2) of the object.
5. Pack according to one or more of the preceding Claims 1-4, characterized in that the carrying tube (3) has a rectangular cross-section, and the outermost parts of the supporting elements (4) are angular.
EP89203025A 1988-11-29 1989-11-27 Pack for a fragil tubular object Ceased EP0371566A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8802941 1988-11-29
NL8802941A NL8802941A (en) 1988-11-29 1988-11-29 PACKAGING FOR A VULNERABLE TUBULAR OBJECT.

Publications (1)

Publication Number Publication Date
EP0371566A1 true EP0371566A1 (en) 1990-06-06

Family

ID=19853308

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89203025A Ceased EP0371566A1 (en) 1988-11-29 1989-11-27 Pack for a fragil tubular object

Country Status (2)

Country Link
EP (1) EP0371566A1 (en)
NL (1) NL8802941A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010040936A1 (en) * 2008-10-10 2010-04-15 Renault S.A.S. Protection element for a member to be protected, in particular an exhaust hose
CN103332405A (en) * 2013-07-10 2013-10-02 中国科学院电工研究所 Solenoid superconducting magnet protector
WO2018102334A1 (en) * 2016-11-29 2018-06-07 Corning Incorporated Crate assemblies for transporting spools of glass

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2639807A (en) * 1949-12-24 1953-05-26 Louis C Ambrette Shipping package for press inking rolls
FR1232806A (en) * 1958-09-23 1960-10-12 English Electric Co Ltd Advanced containers for packaging and storage
FR1358614A (en) * 1963-03-07 1964-04-17 Dropsy S A wedging element for cardboard packaging
US3695421A (en) * 1970-09-08 1972-10-03 Harry G Wood Package assembly and cushion therefor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2639807A (en) * 1949-12-24 1953-05-26 Louis C Ambrette Shipping package for press inking rolls
FR1232806A (en) * 1958-09-23 1960-10-12 English Electric Co Ltd Advanced containers for packaging and storage
FR1358614A (en) * 1963-03-07 1964-04-17 Dropsy S A wedging element for cardboard packaging
US3695421A (en) * 1970-09-08 1972-10-03 Harry G Wood Package assembly and cushion therefor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010040936A1 (en) * 2008-10-10 2010-04-15 Renault S.A.S. Protection element for a member to be protected, in particular an exhaust hose
FR2937100A1 (en) * 2008-10-10 2010-04-16 Renault Sas PROTECTIVE MEMBER FOR PROTECTIVE MEMBER, IN PARTICULAR AN EXHAUST FLEXIBLE
RU2493079C2 (en) * 2008-10-10 2013-09-20 Рено С.А.С. Protective device for exhaust hose
CN103332405A (en) * 2013-07-10 2013-10-02 中国科学院电工研究所 Solenoid superconducting magnet protector
WO2018102334A1 (en) * 2016-11-29 2018-06-07 Corning Incorporated Crate assemblies for transporting spools of glass
CN110167849A (en) * 2016-11-29 2019-08-23 康宁股份有限公司 For transporting the lath box assembly of coiled glass

Also Published As

Publication number Publication date
NL8802941A (en) 1990-06-18

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