EP0400097A1 - Tapis de stockage ou de support, notamment pour des applications d'emballage - Google Patents

Tapis de stockage ou de support, notamment pour des applications d'emballage

Info

Publication number
EP0400097A1
EP0400097A1 EP89905049A EP89905049A EP0400097A1 EP 0400097 A1 EP0400097 A1 EP 0400097A1 EP 89905049 A EP89905049 A EP 89905049A EP 89905049 A EP89905049 A EP 89905049A EP 0400097 A1 EP0400097 A1 EP 0400097A1
Authority
EP
European Patent Office
Prior art keywords
spacer
fabric
mat according
mat
granulate
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.)
Withdrawn
Application number
EP89905049A
Other languages
German (de)
English (en)
Inventor
Georg Korfmacher
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.)
KORFMACHER TRADING GmbH
Original Assignee
KORFMACHER TRADING GmbH
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
Priority claimed from DE8805735U external-priority patent/DE8805735U1/de
Priority claimed from DE8806523U external-priority patent/DE8806523U1/de
Priority claimed from DE8816163U external-priority patent/DE8816163U1/de
Application filed by KORFMACHER TRADING GmbH filed Critical KORFMACHER TRADING GmbH
Publication of EP0400097A1 publication Critical patent/EP0400097A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • B65D81/09—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 flowable discrete elements of shock-absorbing material, e.g. pellets or popcorn
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23—Sheet including cover or casing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23—Sheet including cover or casing
    • Y10T428/231—Filled with gas other than air; or under vacuum
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23—Sheet including cover or casing
    • Y10T428/233—Foamed or expanded material encased
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23—Sheet including cover or casing
    • Y10T428/239—Complete cover or casing

Definitions

  • the present invention relates to a storage or support mat, in particular for packaging purposes, comprising an airtight, flexible cover which can be closed via a valve and in which a filler is accommodated.
  • the filler preferably consists of a pre-expanded polystyrene granulate.
  • the granules are accommodated in a fabric bag. There is a risk that the granules, e.g. when hanging in a depressurized state, accumulate in the lower area of the mat, while the upper area of the mat is free of granules.
  • the granulate must first be leveled in the casing before the vacuum is then applied.
  • DOS 2.018.605 describes an arrangement in which the granules are accommodated in chamber-like sections of the casing (FIG.
  • the PCT / FRS7 / 00115 proposes a variant of such a chamber-like accommodation of the ganulate, in which the granulate is arranged in quilted (Fig. 5 and 8 or tubular chamber-like tissue sacks).
  • the trapping of the granules in chambers or hoses has the disadvantage that certain areas, and normally the central areas of the mat prove normal, are particularly mechanically stressed and cannot regenerate to the desired extent in the non-pressurized state of the mat because the granules are not replaced between the central area and the peripheral areas. So especially in the embodiment according to PCT / FR87 / 00115, after a relatively short period of use, there is a noticeable granular shrinkage in the central chambers or hoses and consequently undesirable thin areas of the mat, which cannot be compensated for even by leveling or smoothing.
  • the known designs also have in common that there are thin spots on the chamber separations or the fabric seams, which are harmful to the goods to be packaged, but are difficult to recognize because the apparent mat thickness is not given at these spots.
  • An object of the present invention is to avoid these disadvantages of the known mats and to propose a mat in which the conflict of objectives outlined above is solved in a particularly simple and economical manner in such a way that the granulate is in bulk in a fabric bag, so that it is mixed again and again by handling the mat, but that there is still no accumulation of areas and the associated bulging or thinning of the mat in a depressurized state.
  • a further object of the present invention is therefore to reliably eliminate the disadvantages just described, so that the function of the mat according to the invention is not impaired even by inflation.
  • Another disadvantage of the known mats of this type is that the granules can harden when a negative pressure is applied in such a way that their desired shock-absorbing properties are impaired.
  • the mechanical structure formed by the negative pressure in the envelope has particularly favorable shock-absorbing properties, especially when using pre-expanded polystyrene, which protects the object packed in the mat from impact.
  • the structure compressed from the granules can, however, assume such a hardness that the shock absorption in particular decreases sharply or even disappears completely, while at the same time the support structure becomes particularly good.
  • Another object of the present invention is therefore to
  • the spacer threads of the spacer fabric forming the fabric sack are arranged at a distance from one another which is greater than the mean diameter of the particles of the granulate and smaller than or at most equal to the length of the spacer threads. It is advantageous if the spacer threads of the spacer fabric are individually distributed uniformly.
  • the filler has a composite body with different properties of the materials forming the composite body.
  • the invention provides that the composite body has at least two layers and that these layers are connected to one another at least at points.
  • the casing has two chambers, each of which can be closed by a valve and each has a granule filler with identical or different mechanical properties.
  • FIG. 1 shows a cross section through a mat according to the invention.
  • Figure 2 is a schematic, spatial representation of the spacer fabric in a mat according to the invention.
  • Figure 3 is a schematic, spatial representation of another embodiment of the spacer fabric in a mat according to the invention.
  • FIG. 4 shows a cross section through a mat according to a further embodiment of the invention.
  • FIG. 5 spatially, schematically, the filler in a mat according to the invention
  • Fig. 5 shows a cross section through a mat according to a particular embodiment of the invention.
  • the mat 1 consists, in a manner known per se, of an airtight and flexible cover 2, which is closed along its circumference by an airtight edge 3. Via a valve 4, a vacuum can be generated in the halyard 2 by means of a suitable pump.
  • An air-permeable fabric sack 5 is arranged in the case 2, in which a granulate, such as e.g. pre-expanded polystyrene.
  • This fabric bag 5 is formed according to the invention from a spacer fabric, which in turn is sewn along its circumference 6 so that a closed space is formed between the two fabric layers of the spacer fabric 5, in which the granulate particles move freely but from which they cannot escape .
  • the granules essentially completely fill the space thus formed by the spacer fabric.
  • the spacer fabric 5 consists of an upper and lower fabric layer, which are connected to one another by a plurality of spacer threads 7 are.
  • the spacer threads 7 are in turn at a distance from one another, so that one has to imagine the set-up spacer fabric when viewed microscopically from the inside like a pillared hall.
  • the two fabric layers 8 and 9 of the spacer fabric 10 are connected by spacer thread 11. These are arranged at regular intervals and staggered in rows.
  • the granulate particles which are in bulk in the spacer fabric 10 know to move freely between the spacer threads in the entire space formed by the spacer fabric.
  • This movement of the granulate particles in the depressurized state is stimulated by the use of the mat itself and in particular by pouring it into the mat.
  • the mat always maintains its uniformly flat shape and there is no point or area-like accumulation, bulging or thinning of the mat.
  • the spacer threads 13 are arranged in groups and offset in a row. With such an arrangement of the spacer threads 13, the granulate particles can move and mix particularly well in the space formed by the spacer fabric without the fabric sack formed by the spacer fabric losing its structure, even if the casing 5 is inflated accidentally or intentionally becomes. Even in a casing 5 that is bulged by inflation, the uniform structure of the fabric bag formed by the spacer fabric is retained. It does not collapse, does not wrinkle and does not warp. All spacer fabrics have in common that the effective thickness or thickness of the mat 1 is determined by the length of the spacer the in itself and by their arrangement to each other.
  • the distance between the spacer thread or spacer thread groups should not be greater than the length of a spacer thread and that the spacer threads have a distance from one another that does not hinder the free passage of the granulate particles through the spacer threads.
  • the spacer threads of the spacer fabric forming the fabric sack should therefore be at a distance from one another which is larger than the mean diameter of the granulate particles, but smaller than or equal to the length of the spacer thread.
  • the main advantage of the mat according to the invention is that the granulate particles are accommodated in bulk in the spacer fabric, which has a very favorable effect on their permanent mixing, their increased service life and more uniform mechanical stress.
  • the spacer fabric ensures an even geometry and stable structure of the mat.
  • the filling of the fabric bag with granules is also simplified, making it easier to control, less time and machine consuming and therefore more economical.
  • circumferential shapes can be realized with a mat according to the invention, which are not bound to any mandatory chamber or tubular shapes of the known mats of this type.
  • the mats according to the invention can be circular, heart-shaped or with any contours, the fabric sack formed by the spacer fabric always filling the envelope perfectly down to the finest contour.
  • a filler which is formed by a composite body 16 is arranged in the shell 14.
  • This composite body 16 preferably comprises two layers 17 and 18 with different, mechanical properties of the layers 17 and 18 and thus the
  • Composite body 16 forming materials.
  • the layers 17 and 18 are preferably connected to one another at least at points in FIG. 19. However, a flat connection between these layers is also possible.
  • the layer 17 is formed by a fabric bag according to Fig. 2, while the layer 18 e.g. has a bubble wrap. Both layers are connected to one another at least at points by suitable means.
  • One layer 18 can, however, also be formed from a layer of closed-cell foam, the thickness of which is selected in accordance with the desired cushioning effect. To maintain or generate the necessary flexibility of a stronger closed-cell foam rubber mat, this is provided with comb-like offset sections 20 according to the embodiment shown in FIG. 5. These incisions are arranged on both sides of the layer 18, so that the foam rubber layer 18 can deform freely in space.
  • the two layers 17 and 18 it is also possible for the two layers 17 and 18 to have fabric sacks made of a spacer fabric according to the invention, the fabric sacks containing granule fillings with different mechanical properties.
  • Layer 17 may contain granules of pre-expanded polystyrene, while layer 18 contains granules of incompressible particles.
  • the two sides of the mat have different mechanical properties, so that the mat can be applied with one side or the other, depending on the goods to be packaged.
  • One side then has more of a cushioning function and the other side more of a supporting function.
  • the layer of bubble wrap or foam also contributes to the structure of the filler, so that it is even when the casing is inflated does not reject or collapse.
  • the mat 1 has three walls 21, 22 and 23 which are connected to one another in such a way that they form two chambers 26 and 27. These each have a valve 24 or 25.
  • At least one fabric bag 28 or 29 made of spacer fabric with a granulate filling is arranged in each of the chambers 26 and 27.
  • the granules in each tissue bag 28 or 29 are homogeneous in themselves, but different from the other tissue bag.
  • Such granules are e.g. expanded polystyrene, fine-grained cork, grains with inelastic consistency and with irregular surfaces (e.g. octahedra), Kuge oak made of latex or a similar rubber-elastic material.
  • a mat 1 designed in accordance with the invention is as follows.
  • Granules made from pre-expanded polystyrene have the particular advantage that they change from a pearly consistency to a noticeably pasty state when the vacuum is low.
  • the mat 1 on the one hand, molds itself very precisely to a body to be encased and, on the other hand, has particularly good shock absorption properties, since external shock loads are absorbed by plastic deformation and / or by friction between the individual granulate particles.
  • the granulate has only very limited pruning properties, the first of which can be generated by a stronger vacuum.
  • pre-expanded polystyrene in both chambers at different vacuum because of the low weight Pre-expanded polystyrene in one chamber and solid octahedron grains in the other chamber, whereby the polystyrene can create any desired soft state on one side by vacuum, while the filling from solid octahedron grains creates a very rigid support structure ; expanded polystyrene in one chamber and latex granules in the other chamber, so that on the one hand a soft, shock-absorbing structure is created, while on the other hand a rubber-elastic, stable support structure is formed.
  • Such pairs of granules make it possible to produce the hard support structure with virtually wear-free granules, while the polystyrene granules, which are susceptible to wear, are largely spared by applying a reduced vacuum. In this way, the lifespan and functionality of this advantageous but mechanically susceptible material is significantly extended.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Buffer Packaging (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

Le tapis décrit comporte une enveloppe souple étanche à l'air fermable au moyen d'une valve (4) et remplie d'une matière granulaire. Cette dernière est logée dans un sac (5) constitué d'un tissu d'espacement. La matière de remplissage est un composite constitué d'au moins deux matériaux ayant des caractéristiques mécaniques différentes.
EP89905049A 1988-04-30 1989-05-02 Tapis de stockage ou de support, notamment pour des applications d'emballage Withdrawn EP0400097A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE8805735U 1988-04-30
DE8805735U DE8805735U1 (de) 1988-04-30 1988-04-30 Lagerungs- oder Stützmatte, insbesondere für Verpackungszwecke
DE8806523U 1988-05-18
DE8806523U DE8806523U1 (de) 1988-05-18 1988-05-18 Matte, insbesondere für Lagerungs-, Stütz- und Verpackungszwecke
DE8816163U DE8816163U1 (de) 1988-12-29 1988-12-29 Lagerungs- oder Stützmatte, insbesondere für Verpackungszwecke
DE8816163U 1988-12-29

Publications (1)

Publication Number Publication Date
EP0400097A1 true EP0400097A1 (fr) 1990-12-05

Family

ID=27207871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89905049A Withdrawn EP0400097A1 (fr) 1988-04-30 1989-05-02 Tapis de stockage ou de support, notamment pour des applications d'emballage

Country Status (3)

Country Link
US (1) US5595806A (fr)
EP (1) EP0400097A1 (fr)
WO (1) WO1989010315A1 (fr)

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EP3178754B1 (fr) * 2015-12-07 2021-06-23 Sartorius Stedim Fmt Sas Conteneur gonflable de transport d'un fluide biopharmaceutique et système et procédé mettant en oeuvre un tel conteneur
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Also Published As

Publication number Publication date
WO1989010315A1 (fr) 1989-11-02
US5595806A (en) 1997-01-21

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