WO1983002880A1 - A box element, such as a travelling bag or suit-case - Google Patents

A box element, such as a travelling bag or suit-case Download PDF

Info

Publication number
WO1983002880A1
WO1983002880A1 PCT/DK1983/000018 DK8300018W WO8302880A1 WO 1983002880 A1 WO1983002880 A1 WO 1983002880A1 DK 8300018 W DK8300018 W DK 8300018W WO 8302880 A1 WO8302880 A1 WO 8302880A1
Authority
WO
WIPO (PCT)
Prior art keywords
tray
skin
bag
foamed plastics
case
Prior art date
Application number
PCT/DK1983/000018
Other languages
French (fr)
Inventor
Richter Jorgensen Aps Poul
Original Assignee
Jorgensen, Poul, Richter
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 Jorgensen, Poul, Richter filed Critical Jorgensen, Poul, Richter
Priority to GB08326746A priority Critical patent/GB2125011B/en
Priority to DE833332433T priority patent/DE3332433T1/en
Publication of WO1983002880A1 publication Critical patent/WO1983002880A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C5/00—Rigid or semi-rigid luggage
    • A45C5/02—Materials therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
    • B29C44/16—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining shaped by the expansion of the material

Definitions

  • a Box Element such as a Travelling Bag or
  • the present invention relates to a travelling bag or suit-case, the wall of which consists of an inner stiff tray, an outer wear-proof skin and an intermediate layer " of foamed plastics.
  • Bags or cases are known, wherein a padding element of shock-absorbing and/or heat insulating material, e.g. rock-wool or cotton wadding, is glued to the inner layer of the wall prior to the application of the outer skin of plastic foil or leather, or is inserted as a pad between the layers previously welded together to form the inner and outer sides of the bag.
  • a padding element of shock-absorbing and/or heat insulating material e.g. rock-wool or cotton wadding
  • the inventive bag is characteristic in that the intermediate layer of foamed plastics in the wall of the bag is a hard foam which is firmly compressed during foam ⁇ ing in and complete filling of the space between the tray and the skin, so that the outer skin of the wall is kept tightly stretched by the foamed material.
  • a bag is easily manufactured by the thin flexible skin being ar ⁇ ranged on the outside of the tray secured to the upper edge thereof, a foaming agent, such as polyurethan foam or a corresponding one or two-component material thereafter be ⁇ ing injected into the space between the tray and the skin in such an amount that when hardening it will stretch the outer skin and form a firmly compressed shock-absorbing padding.
  • the pressure from the foamed plastic material stretches the outer skin evenly all over, and in this way • it is possible to manufacture bags which are particularly shock-absorbing and therefore very well suited, e.g. as medical bags and tool and instrument bags for transport- ation of delicate instruments.
  • the upper edge of the tray and the edge portion of the skin arranged around the side walls of the tray may be connected with each other by means of a frame formed in such a way that the pressure from the compressed plastic cooperates in keeping the frame firmly connected with the upper edge of the tray and the skin firmly connected with the frame.
  • the holes in the frame are easi ⁇ ly closed on the outside after the casting of the foam agent.
  • a bag to be used as a medical case or as depository for instruments is easily constructed with holding means for the instruments when formed as stated in the character ⁇ izing clause of claim 4.
  • the bag or case according to the invention may furthermore be adapted, in a cheap and effective manner, as a burglary-secured case for transportation of banknotes, securities, coins or other articles of value.
  • a mesh of metal wire may be cast in the layer of foamed plastics surrounding the interior of the case, so that it would be very difficult or impossible to cut through the case with a knife or saw.
  • such a mesh may constitute a cheap element of a system which in case of attempts at breaking the case open will eject a liquid which makes articles of value, e.g. banknotes, kept
  • the drawing shows a section through part of an em- • bodiment of the bag or case according to the invention.
  • the bag or case as usually consists of a bottom portion and a cover portion or of two identical halves hinged to each other.
  • the interior space of .each half is defined by a stiff box-shaped tray of hard plastic or possibly of metal.
  • the tray 1 constitutes the inner layer of the wall of the case which on the outside is covered with a skin 2 of flexible tensile material, ' such as plastic foil or leather. Between the inner layer 1 and the outer layer 2 of the wall firmly compressed hard foamed plast ⁇ ics 3 is cast by foaming in situ.
  • the foamed plastics have a shock-absorbing and heat-insulating effect and keeps the layer 2 forming the skin of the case, tightly and smoothly stretched.
  • the upper edge of the tray 1 and the skin 2 are connected to each other by a frame 5, and the pressure from the foamed plastics 3 cooperates in keeping the inner layer 1 as well as the outer layer .2 in firm connection with the frame 5.
  • the bag or case according to the invention is easi ⁇ ly manufactured by arranging the skin 2 around the lower portion of the tray 1, the edge portion of the skin 2 be ⁇ ing secured to the lower portion 10 of the mounting 5, e.g. by glueing or nailing, and the upper edge of the tray 1 be ⁇ ing secured to the mounting 5 in any suitable manner, e.g.
  • the tray 1 with the surrounding skin 2 is placed in a mould 4, in the draw ⁇ ing indicated by dotted lines, and a two-component foaming material 3 is injected through holes in the skin 2, the tray 1 or the frame 5.
  • foaming the material the flex ⁇ ible skin 2 is pressed tightly and smoothly against the inner side of the mould 4.
  • the appearing outer contour of the bag or case is maintained when the foamed plastics hav hardened as a firm shock-absorbing and insulating sub ⁇ stance.
  • the pressure in the_ foamed plastics 3 moreover co ⁇ operates in keeping the skin 2 firmly against the frame portion 10, in keeping this portion 10 and the remaining portion of the frame 5 together, and in keeping the frame 5 in firm connection with the tray 1.
  • Through-going holes 6 in the frame 5 may further contribute to retain the frame on the bag by means of the deadheads formed at the holes.
  • the holes 6 and other casting and overflow holes if any, are closed on the outside after the casting.
  • Mountings 1 to hold tools or instruments are. securely maintained in position by discs 8 screwed on the outer side of the tray 1, said discs being pressed firmly against the tray by the foamed plastics 3.
  • a fine-meshed network 9 of metal wire is embedded in the foamed plastics 3 to pre ⁇ vent cutting in the wall of the case and, as referred to, may be connected to an electric ignition mechanism act- ivating a system which makes the contents of the bag or case worthless at attempts to break the bag open.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Buffer Packaging (AREA)
  • Packages (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Details Of Garments (AREA)
  • Packaging Frangible Articles (AREA)

Abstract

A suit-case or a similar box-element has a shock-absorbing and insulating wall comprising an inner tray (1) connected through a frame (5) to an outer skin (2), and foamed plastics are injected in the space between the tray and the skin in such a manner that after foaming it forms a hard shock-absorbing and insulating layer (3). A network (9) may be embedded in the layer of foamed plastics (3), and mountings (7) for tools or instruments can be secured in position by means of discs (8) screwed on shafts of the mountings and pressed against the tray (1) by the pressure in the foamed material. Further, the foamed plastics assist in keeping tray (1), frame (5) and skin (2) together and in maintaining a tight and smooth outer skin (2).

Description

A Box Element, such as a Travelling Bag or
Suit-Case.
The present invention relates to a travelling bag or suit-case, the wall of which consists of an inner stiff tray, an outer wear-proof skin and an intermediate layer "of foamed plastics.
Bags or cases are known, wherein a padding element of shock-absorbing and/or heat insulating material, e.g. rock-wool or cotton wadding, is glued to the inner layer of the wall prior to the application of the outer skin of plastic foil or leather, or is inserted as a pad between the layers previously welded together to form the inner and outer sides of the bag. The manufacture of these known bags or cases is time-consuming and difficult and involves a risk that the insulating, layer will get displaced betwee the surrounding layers, or that wrinkles will arise there¬ in either during the manufacture of the bag or case, or later. It is the object of the invention to avoid these drawbacks and to provide a shock-absorbing and insulating bag which may be manufactured in a fast, cheap and safe manner and, besides, during the manufacture of the wall is easily constructed with retaining mountings for tools, glass ampoules or other objects to be kept in a certain position, or with a strengthening layer or a wire mesh preventing or counteracting damages at attempts to cut the bag open.
The inventive bag is characteristic in that the intermediate layer of foamed plastics in the wall of the bag is a hard foam which is firmly compressed during foam¬ ing in and complete filling of the space between the tray and the skin, so that the outer skin of the wall is kept tightly stretched by the foamed material. Such a bag is easily manufactured by the thin flexible skin being ar¬ ranged on the outside of the tray secured to the upper edge thereof, a foaming agent, such as polyurethan foam or a corresponding one or two-component material thereafter be¬ ing injected into the space between the tray and the skin in such an amount that when hardening it will stretch the outer skin and form a firmly compressed shock-absorbing padding. The pressure from the foamed plastic material stretches the outer skin evenly all over, and in this way • it is possible to manufacture bags which are particularly shock-absorbing and therefore very well suited, e.g. as medical bags and tool and instrument bags for transport- ation of delicate instruments.
According to the invention, the upper edge of the tray and the edge portion of the skin arranged around the side walls of the tray may be connected with each other by means of a frame formed in such a way that the pressure from the compressed plastic cooperates in keeping the frame firmly connected with the upper edge of the tray and the skin firmly connected with the frame. This results in a very solid and-durable bag, especially when in addition the frame is provided with holes engaged by deadheads of foam- ed plastics, these holes having been used for injection of foamed plastics material. The holes in the frame are easi¬ ly closed on the outside after the casting of the foam agent. A bag to be used as a medical case or as depository for instruments is easily constructed with holding means for the instruments when formed as stated in the character¬ izing clause of claim 4.
The bag or case according to the invention may furthermore be adapted, in a cheap and effective manner, as a burglary-secured case for transportation of banknotes, securities, coins or other articles of value. According to the invention, a mesh of metal wire may be cast in the layer of foamed plastics surrounding the interior of the case, so that it would be very difficult or impossible to cut through the case with a knife or saw. Moreover, such a mesh may constitute a cheap element of a system which in case of attempts at breaking the case open will eject a liquid which makes articles of value, e.g. banknotes, kept
OMF in the case worthless, seeing that such a dyeing system ma be adapted in a way so as to begin functioning when an electric igniter is activated by the wire mesh embedded in the foaming material if it is. hit by a knife at attempts t cut the case wall open.
The drawing shows a section through part of an em- • bodiment of the bag or case according to the invention. The bag or case as usually consists of a bottom portion and a cover portion or of two identical halves hinged to each other. The interior space of .each half is defined by a stiff box-shaped tray of hard plastic or possibly of metal. The tray 1 constitutes the inner layer of the wall of the case which on the outside is covered with a skin 2 of flexible tensile material, ' such as plastic foil or leather. Between the inner layer 1 and the outer layer 2 of the wall firmly compressed hard foamed plast¬ ics 3 is cast by foaming in situ. The foamed plastics have a shock-absorbing and heat-insulating effect and keeps the layer 2 forming the skin of the case, tightly and smoothly stretched. The upper edge of the tray 1 and the skin 2 are connected to each other by a frame 5, and the pressure from the foamed plastics 3 cooperates in keeping the inner layer 1 as well as the outer layer .2 in firm connection with the frame 5. The bag or case according to the invention is easi¬ ly manufactured by arranging the skin 2 around the lower portion of the tray 1, the edge portion of the skin 2 be¬ ing secured to the lower portion 10 of the mounting 5, e.g. by glueing or nailing, and the upper edge of the tray 1 be¬ ing secured to the mounting 5 in any suitable manner, e.g. by clamps, adhesive tape or by glueing. The tray 1 with the surrounding skin 2 is placed in a mould 4, in the draw¬ ing indicated by dotted lines, and a two-component foaming material 3 is injected through holes in the skin 2, the tray 1 or the frame 5. When foaming the material, the flex¬ ible skin 2 is pressed tightly and smoothly against the inner side of the mould 4. The appearing outer contour of the bag or case is maintained when the foamed plastics hav hardened as a firm shock-absorbing and insulating sub¬ stance. The pressure in the_ foamed plastics 3 moreover co¬ operates in keeping the skin 2 firmly against the frame portion 10, in keeping this portion 10 and the remaining portion of the frame 5 together, and in keeping the frame 5 in firm connection with the tray 1. Through-going holes 6 in the frame 5 may further contribute to retain the frame on the bag by means of the deadheads formed at the holes. The holes 6 and other casting and overflow holes if any, are closed on the outside after the casting. Mountings 1 to hold tools or instruments are. securely maintained in position by discs 8 screwed on the outer side of the tray 1, said discs being pressed firmly against the tray by the foamed plastics 3.
In the embodiment shown, a fine-meshed network 9 of metal wire is embedded in the foamed plastics 3 to pre¬ vent cutting in the wall of the case and, as referred to, may be connected to an electric ignition mechanism act- ivating a system which makes the contents of the bag or case worthless at attempts to break the bag open.
C

Claims

oPatent Claims:
1. A travelling bag. or suit-case, the wall of whic consists of an inner stiff tray, an outer wear-proof skin and an intermediate layer of foamed plastics, c h r ¬ a c t e r i z e d in that .the intermediate layer (3) of foamed plastics in the wall of the bag is a hard foam whic is firmly compressed during foaming in and complete fillin of the space between the tray (1) and the skin (2) , so . that the outer skin (2) of the wall is kept-tightly stretched by the foamed material (3) . " . .
2. A bag or case according to claim 1, c h a r ¬ a c t e r i z e d in that the upper edge of the tray (1)
. and the edge portion of the skin (2) arranged around the side walls of the tray are connected with each other by means of a frame (5) formed in such a way that the pressur from the compressed foamed plastics (3) cooperates in keep ing the frame (5) firmly connected with the upper edge of the tray (1) , and the .skin (2) firmly connected with the frame.
3. A bag or case according to claims 1-2, c h a r a c t e r i z e d in that the frame (5) is provided with holes (6) engaged by deadheads of the foamed plastics (3) .
4. A bag or case according to claims 1-3, c h a r- a c t e r i z e d in that a neck portion of a mounting
(7) to hold tools, ampoules or other objects is carried through a hole in the wall or bottom of the tray (1) and at the end thereof situated in the space between the tray (1) and the skin (2) carries a disc-shaped holder (8) which is kept pressed against the outer side of the tray (1) by the pressure in the compressed foamed plastics.
5. A bag or case according to claims 1-4, c h a r a c t e r i z e d in that a fine-meshed network (9) of metal wire is embedded in the foamed plastics (3) , prefer¬ ably near the outer skin (2) .
6. A method of manufacturing a travelling bag or suit-case, the wall of which consists of an inner stiff tray, an outer wear-proof skin and an intermediate layer of foamed plastics, c h a r a c t e r i z e d by the flexible wear-proof skin being placed around and in sealed connection with said stiff" tray, after which foamed plast¬ ics, such as polyurethan foam, or a corresponding one or two-component material, is injected into the space between " the tray and the skin in such an amount, that when harden¬ ing it will stretch the outer skin and form a firmly com¬ pressed shock-absorbing padding.
PCT/DK1983/000018 1982-02-24 1983-02-21 A box element, such as a travelling bag or suit-case WO1983002880A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB08326746A GB2125011B (en) 1982-02-24 1983-02-21 A box element such as a travelling bag or suit-case
DE833332433T DE3332433T1 (en) 1982-02-24 1983-02-21 SUITCASE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK080382A DK160347C (en) 1982-02-24 1982-02-24 BOX WITH A TRAY, A SKIN AND INTERMEDIATE FOAM LAYER, AND PROCEDURE FOR MANUFACTURING THE BOX
DK803/82820224 1982-02-24

Publications (1)

Publication Number Publication Date
WO1983002880A1 true WO1983002880A1 (en) 1983-09-01

Family

ID=8097742

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1983/000018 WO1983002880A1 (en) 1982-02-24 1983-02-21 A box element, such as a travelling bag or suit-case

Country Status (7)

Country Link
EP (1) EP0104183A1 (en)
AU (1) AU564305B2 (en)
DE (1) DE3332433T1 (en)
DK (1) DK160347C (en)
GB (1) GB2125011B (en)
SE (1) SE456312B (en)
WO (1) WO1983002880A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180220B (en) * 1985-08-31 1989-07-05 Brynn Anthony Hiscox Method of making a case
EP0417516A2 (en) * 1989-09-13 1991-03-20 Grammer Ag Method for production of foam-backed upholstery and apparatus for carrying out the process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1482771A (en) * 1965-06-12 1967-05-26 Sheathing process for a case
GB2053774A (en) * 1979-07-05 1981-02-11 Sicam Soc Italiana Cuscini A M Process and mold for producing padded seat backs

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1482771A (en) * 1965-06-12 1967-05-26 Sheathing process for a case
GB2053774A (en) * 1979-07-05 1981-02-11 Sicam Soc Italiana Cuscini A M Process and mold for producing padded seat backs

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180220B (en) * 1985-08-31 1989-07-05 Brynn Anthony Hiscox Method of making a case
EP0417516A2 (en) * 1989-09-13 1991-03-20 Grammer Ag Method for production of foam-backed upholstery and apparatus for carrying out the process
EP0417516A3 (en) * 1989-09-13 1991-05-02 Grammer Ag Method for production of foam-backed upholstery and apparatus for carrying out the process

Also Published As

Publication number Publication date
AU564305B2 (en) 1987-08-06
GB2125011B (en) 1985-08-14
EP0104183A1 (en) 1984-04-04
SE456312B (en) 1988-09-26
GB2125011A (en) 1984-02-29
SE8305610D0 (en) 1983-10-12
SE8305610L (en) 1983-10-12
DK160347C (en) 1991-08-19
DK160347B (en) 1991-03-04
GB8326746D0 (en) 1983-11-09
DK80382A (en) 1983-08-25
AU1227083A (en) 1983-09-08
DE3332433T1 (en) 1984-01-12

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