FI76308C - Foldable winding - Google Patents

Description

1 76308

ASSEMBLY POLAND

The invention relates to an assembled bobbin used for the transport of wound metal products, in particular wound metal pipes.

Many disposable cardboard boxes are used as transport protection for spooled metal pipes. However, the cardboard box does not always adequately protect the metal tube from scratches and knocks. In addition, the disposable cardboard box poses a significant waste problem. New, unused enclosures cannot be stored outdoors to prevent the enclosure from deteriorating when wet.

To eliminate the disadvantages of a cardboard box, sides made of other materials have been developed. These can be used multiple times, but if the spool cannot be unloaded, it will require a large storage space. Sides to be assembled from several parts are also known in advance, and such have been described e.g. U.S. Patent Nos. 3,661,341 and 3,836,093.

U.S. Patent 3,661,341 discloses a spool made of cardboard or plywood assembled from two flange portions and a spool core portion connecting the flanges. The core portion of the spool consists of a plurality of fingers, preferably formed so that the fingers are parts of hubs located in the center of the flanges, protrusions that are bent 90 ° and connected either to the opposite flange or to the finger from the hub of the opposite flange.

U.S. Patent 3,836,093 discloses a spool consisting of flanges and ribs interposed therebetween. The flanges are made of Super-Wood material (possibly plywood) and the ribs are made of hot-rolled steel. The number of ribs is preferably 4, and the ribs are connected to the flanges at each end by means of projections at their ends. The flanges are closed, except for the rib attachment points and the center shaft hole.

According to the present invention, the pipe spool is made of two round flanges and spacers which are placed between the flanges perpendicular to them. The spacers are attached to the flanges with a convenient quick release 2 76308. The flanges of the spool are not closed, so that the plastic spool remains light and easy to handle, and in particular the lifting and locking members of the transfer device can be passed through the spool through openings in the bulkhead. A transfer device particularly suitable for this Poland is disclosed in the F1 patent application 5, which is divided from this application. The essential features of the invention appear from claim 1.

The invention is described in more detail by means of the accompanying drawings, in which Fig. 1 shows a pipe coil in oblique aonometric view, Fig. 2 shows a flange part in a top view, Fig. 3 is a view of a spacer in a top view.

The Polish flanges and spacers are made of plastic, both in one piece. As can be seen in Figure 1, the spacers 1 are attached to the flanges 2 at each end. In practice, the spool is assembled by first connecting the spacers to the second flange, placing the pipe coil 15 around the ribs and then attaching the second flange to the spacers.

It can be seen from Figure 2 that the flange 2 has a central hole 3, locked rods 4 of the intermediate ribs and openings 5 and 6 for the guides and support tubes of the transfer device. These openings are characteristic of the structure according to the invention, otherwise the flange can be shaped in a suitable manner, taking into account, on the one hand, the lightness of the structure and, on the other hand, the sufficient strength of the structure. The flanges are dimensioned so that their diameter is clearly larger than the outer diameter of the pipe rake, so that the wound pipe remains completely under the protection of the flanges.

25 Figure 3 illustrates the spacer in more detail. It can be seen from the figure that the rib is basically in the shape of a U-beam and bent inwards at its ends, but at both ends there are strips 7 on the side portions of the rib which are toothed at the outer edge. By means of the toothing of these strips 7, the spacers can be locked to the flanges. The strips are somewhat flexible, so that the spacers can be removed from the flanges by bending the strips inwards.

ti 3 76308

In summary, the advantages of the spool according to the invention can also be listed: 1. The plastic spool is sturdy and protects the pipe well at different stages. However, it is lighter than, for example, coils made of plywood and / or steel. Thanks to the strength of Poland, packaging and transfer damage is reduced. Despite its strength, however, the polish is light.

2. The handling of the pipe spool is easier and faster thanks to the lifting and transfer device developed for this purpose.

3. Plastic spool parts are easy to disassemble and little storage space is required.

10 4. The storage and disposal concessions '1' of cardboard waste are omitted. Plastic parts can be stored outdoors.

5. Intermediate girders of different lengths may be used in assembling Poland; .. or according to the thickness of the wire spool.

6. Since the plastic parts can be used many times, the plastic material 15 is also very advantageous in terms of overall cost compared to other solutions.