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(11) | EP 0 287 177 B1 |
| (12) | EUROPEAN PATENT SPECIFICATION |
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| (54) |
Packaging Verpackung Emballage |
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| Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). |
[0001] The current invention relates to a packaging according to the first part of claim 1, comprising a rolled up product and a wrapping arranged around the rolled up product.
[0003] In the case the product consists of mineral wool, a wrapping is employed in order to prevent the escape of dust from the packaging and the absorption of moisture, for example rainwater, into the packaging. Since in the course of storage and transport the packaging has to be gripped by this wrapping, this latter has to consist of durable material that is not particularly vulnerable. In other words, the wrapping forms a considerable part of the total costs of the packaging.
[0004] NL-A 7 611 661 discloses a packaging of rolled up foam material enclosed in a sheet of plastic material heat-welded at a longitudinal weld seam line, and at the end faces united in a closure wad. This package may be handled by gripping the closure ends, but suffers the disadvantage that these packages cannot be stacked on one another on their end faces.
[0005] FR-A 692 761 discloses a blockshaped packaging comprising a compressible product and a wrapping applied around said product, and further two straps transversely applied over the wrapping around the product, and finally a strap passed actually over the transversely applied straps and the wrapping.
[0006] The invention has for its object to improve the known packaging in the sense that the costs of the packaging are decreased considerably because a cheap wrapping can be used. According to the invention this is achieved by a carrying strap applied around said wrapped roll in a diametral plane thereof.
[0007] When gripped the axially tied carrying strap will form slight impressions in the end peripheral edges, . so that release of the rolled up product from the carrying strap will be practically impossible during carrying of the packaging. In comparison to a transversely tied carrying strap the advantage is achieved that the packaging cannot tilt relative to the carrying strap because the centre of gravity of the packaging Hies in or very close to the plane passing through the axial carrying strap.
[0008] In the case of a transversely tied carrying strap, the fitting thereof relative to the centre of gravity of the product has to take place very carefully, since after fitting displacement of the transverse carrying strap along the wrapping is virtually impossible.
[0009] Preferably tied underneath the wrapping and transversely round the rolled up product is a locking strap securing against unrolling of the rolled up product. Because the locking strap neutralises an unwinding tension, use can be made of an even cheaper wrapping. The fitting of the locking strap underneath the wrapping has two further advantages. Firstly, damage to a pre-applied wrapping by the fitting of the locking strap is avoided and secondly an unwinding tension is neutralised right from the start of the packing process, with the result that the entire packing process can be performed more easily and more simply.
[0011] The packaging according to the invention is particularly suitable in the case the length of mineral wool is also provided with a covering layer of metal gauze which may have a considerable unwinding tension.
[0012] In the most advantageous embodiment of the packaging according to the invention, the wrapping consists of shrink-wrapping which is very easy to apply and has a low cost price while nevertheless effectively preventing moisture absorption and escape of dust.
[0013] The packaging according to the invention will be elucidated hereinafter on the basis of an embodiment, whereby reference is made to the annexed drawing.
[0014] In the drawing:
Fig. 1 shows in perspective the various packing steps for a packaging according to the invention; and
Fig. 2 and 3 show the two possible ways of carrying the packaging according to the invention shown in fig. 1.
[0015] Fig. 1 shows the various steps according to the invention in the process of packaging a product 1.
[0016] In fig. 1A a length 2 of mineral wool is rolled up, this length being provided on one longitudinal surface 3 with metal gauze 5 stitched to it with a stitching thread 4.
[0017] The used covering layer of metal gauze 5 which serves to form the mineral wool round objects to be thermally insulated, exerts a considerable unwinding tension in the rolled up product 6. This unwinding tension is neutralized by passing a locking strap 8 transversely round the rolled up product 6, that is, transversely of the roll-up axis. While only one locking strap 8 is shown, it will be apparent that more than one locking strap may be used, although in many applications one strap is sufficient to neutralise the unwinding tension.
[0018] There are very many different ways of fitting locking strap 8 round product 6, but the free ends of the locking strap are preferably welded to each other, for example by using heat (fig. 1 B).
[0019] In the third process step (fig. 1 C) a wrapping 10 is applied round the pre-product 9 shown in fig. 1 B, in this case a shrink-wrapping, overlapping longitudinal edges of which are welded at the point of a weld seam 11.
[0020] Since the wrapping is vulnerable and is substantially intended only to counter moisture absorption and escape of dust, a following packaging step is proposed according to the invention, whereby as in fig. 1 D a carrying strap 12 is passed axially round the product shown in fig. 1 C. The term axial in this case means that carrying strap 12 is located in or parallel to an axial plane passing through the roll-up axis 7.
[0021] Fig. 2 and 3 show both the methods, made possible for the first time by the invention, of gripping the packaging without the wrapping being damaged.
[0022] As according to fig. 2 carrying strap 12 is gripped on an end face 13. The interval between this end face 13 and the carrying strap 12 that is passed loosely round wrapping 10 will become greater because carrying strap 12 causes impressions 14 at the location of the peripheral edges 15 of the end wall. The impressions 14 formed secure the rolled up product against release from carrying strap 12.
1. Packaging (1), comprising a roll (6) of compressible material (2), enclosed in
a compliant wrapping (10), characterized by a carrying strap (12) applied around said
wrapped roll (9) in a diametral plane thereof.
2. Packaging as claimed in claim 1, characterized in that tied transversely round
the rolled up product underneath the wrapping is a locking strap (8) securing against
unwinding of said rolled up product.
3. Packaging as claimed in claim 1 or 2, characterized in that the product consists
of a length (2) of mineral wool.
4. Packaging as claimed in claim 3, characterized in that the product is provided
on at least one longitudinal surface (3) with a covering layer (5).
5. Packaging as claimed in claim 4, characterized in that the covering layer consists
of metal gauze (5).
6. Packaging as claimed in claims 1-5, characterized in that the wrapping (10) consists
of shrink-wrapping.
1. Gebinde (1) mit einer Rolle (6) aus kompressiblem Material (2), die in einer faltbaren
Umhüllung (10) eingeschlossen ist, gekennzeichnet durch einen Tragegurt (12), der
um die umhüllte Rolle (9) in einer diametralen Ebene derselben angebracht ist.
2. Gebinde nach Anspruch 1, dadurch gekennzeichnet, daß unterhalb der Umhüllung ein
Sicherungsgurt (8) in Querrichtung um das gerollte Produkt gebunden ist, um dieses
gegen Aufrollen zu sichern.
3. Gebinde nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Produkt aus einem
abgelängten Stück (2) Mineralwolle besteht.
4. Gebinde nach Anspruch 3, dadurch gekennzeichnet, daß das Produkt wenigstens auf
einer Längsfläche (3) mit einer Abdeckschicht (5) versehen ist.
5. Gebinde nach Anspruch 4, dadurch gekennzeichnet, daß die Abdeckschicht aus Metallgaze
(5) besteht.
6. Gebinde nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß die Umhüllung (10) aus
einer Schrumpfhülle besteht
1. Emballage (1) comportant un rouleau (6) de matériau compressible (2), enfermé dans
une housse élastique (10), caractérisé en ce qu'une bande de transport (12) est appliquée
autour dudit rouleau emballé (9) dans un des plans diamétraux de ce dernier.
2. Emballage selon la revendication 1, caractérisé en ce qu'une bande de blocage (8)
permet tant d'éviter le déroulement dudit produit enroulé est attachée transversalement
autour du produit enroulé en dessous de la housse.
3. Emballage selon la revendication 1 ou 2, caractérisé en ce que le produi t est
une bande (2) de laine de roche.
4. Emballage selon la revendication 3, caractérisé en ce que le produit est pourvu
sur au moins une surface longitudinale (3) d'une couche de couverture (5).
5. Emballage selon la revendication 4, caractérisé en ce que la couche de couverture
est un treillis métallique (5).
6. Emballage selon l'une des revendications 1 à 5, caractérisé en ce que la housse
(10) est une housse rétractable.