FI65590C - DISTANSELEMENT FOER LASTPALLAR - Google Patents

Description

The present invention relates to a spacer for loading balls, comprising a tubular part having at least one end a series of substantially axially extending fastening strips for projecting into the pipe part and connecting it to the plate-forming part of the pallet, on the other hand. a series of support or abutment members extending at an angle, preferably at right angles to the fastening strips, which, like the fastening strips, are formed in one piece with the pipe part itself having a polygonal cross-sectional shape formed by axially extending bending edges located in the boundary areas between the fastening strips and the abutment members. Such spacers, which are known, for example, from U.S. Pat. No. 3,646,948 (Figs. 1 and 12), must be so strong that they e.g. are able to withstand stresses in the form of impacts or impulses of the fork arms which are inserted between the parts of the cover-20 in question in order to lift the loading ball. The spacers according to said patent publication are hardly able to meet these requirements without using very thick sheet material, because the bending edges, i.e. the edges located on both sides of a single planar pipe wall part, only exceptionally affect the polygonal shape of the spacer part in question. which is formed, for example, in every third or every second fastening strip. This means that the sheet metal part extending between the first two bending edges, which bending edges actually affect the polygonal shape of the tube, becomes relatively "large-faced" and thus quite easily deformable due to fork arm impacts and impulses.

The object of the present invention is to eliminate the above-mentioned drawbacks and to provide an even stronger and more economical spacer part. According to the invention, this is achieved in such a way that each of the two delimiting bending edges delimiting the 65590 ma pipe wall part communicating with said abutment member extends at an angle towards the other two adjacent pipe wall parts on both sides thereof.

With reference to the accompanying drawings, a more detailed description of an exemplary embodiment of the invention will now be given. In the drawings, Fig. 1 is a perspective view, partly in section, of a spacer according to the invention, Fig. 2 shows a side view of a sheet metal piece for making the spacer shown in Fig. 1, with 10 several teeth stamped, Fig. 3 also shows a side view of a sheet metal piece with each other tooth bent to form abutments. , Fig. 4 shows an end view of a spacer part according to the invention in a pre-bent state, Fig. 5 shows a sectional view of an end part of a spacer part according to a second embodiment of the invention and Fig. 6 shows a side view of a loading ball comprising spacers according to the invention.

The manufacture of the spacers according to the invention comprises three work steps, namely stamping, bending and hit-20. Figure 2 illustrates how two sets of similar, substantially triangular or sharp teeth 2, 2 * are formed by stamping on a sheet metal piece 1. More specifically, in each set 2, 2 'there are ten teeth 3, 3a, 3,3a ... etc. A part 4 is left at one end of the sheet metal piece 1, the teeth or parts forming the teeth of which are missing at opposite ends. More specifically, the straight delimiting edges 5 delimit this part 4 at the top and bottom, the distance between these delimiting edges being substantially equal to the distance between the bases 6 of the adjacent teeth 3, 3a. In practice, the sheet metal piece 1 can be made of galvanized steel sheet with a thickness of about 1 mm.

Figure 3 illustrates how every other tooth of each set of teeth 2, 2 'is bent at an angle, ni-35, at right angles to the plane of the sheet metal piece 1. More specifically, the teeth 3 are bent relative to the plane of the plate to form abutments or support members, while 3 65590 are allowed to remain intact to form fastening strips suitable for forcing into wood or the like.

Figs. via bending edges 8 extending from the tips of the fastening strips substantially parallel to the first bending edges 7. When bending, care is taken that the teeth 3 15 forming the abutment members are directed towards the center of the pipe section and that the parts of the sheet metal associated with the fastening strip teeth 3a are also directed inwards towards the center of the pipe section so that said second bending edges 8 are closer to the pipe section center than the first bending edges 7.

According to Figure 4, after bending the sheet metal part, the end part 4 is welded to the opposite end part with one or more suitable welds 9.

In the example shown, the number of teeth 3, 3a in each set is ten, which means that the number of substantially planar pipe wall sections 12 delimited by the first two bending lines 7 is five and as a result the sheet metal part or pipe part takes the shape of a pentagon. This cross-sectional shape, as well as other cross-sectional shapes with more corners, i.e. even more bending edges corresponding to 30 teeth, are advantageous in that the number of stiffening, bent tube wall portions is largely independent of where the fork arm meets the spacer. Each portion 12 is positioned obliquely to two adjacent portions 12 on its sides.

Figure 5 illustrates an alternative embodiment in which a plurality of bending edges 8a, 8b and 8c, more specifically three, are associated with each mounting strip 65590 n 3a. Of these bending edges, the former two point inwards towards the center of the spacer, while the latter, which runs at the tip of the strip, faces outwards.

Finally, Fig. 6 shows diagrammatically how a plurality (suitably at four corners) of the spacer part according to the invention, indicated by reference numeral 10 as a whole, are arranged to connect two cover parts or plates 11 and keep them spaced apart from each other to insert a fork-lift truck fork. allow.

The advantages of the spacer part according to the invention are manifold. Thanks to the polygonal cross-section of the pipe, as noted above, the spacer can be made of relatively thin and thus inexpensive sheet metal, maintaining or even improving the strength properties of the spacer as well as the load on the load on the pallet and the fork or fork of the truck in question. Due to the fact that the put-20 cavity wall portions belonging to the teeth 3a forming the fastening strips are bent not only along the pipe part itself but also along the fixing strip-forming parts to form cohesive bending edges between the opposite tooth tips, the teeth or fastening strips have a very good rigidity so that, despite the small thickness of the sheet metal, they can certainly be pressed into the plate parts 11 without bending. Another significant advantage is that the abutment members 3 are bent inwards towards the center of the spacer, as a result of which their usually sharp edges bend inside the tubular walls of the spacer, where they do not have the opportunity to damage the person's hands or clothes. available for loading and j a.

Of course, the invention is not limited only to the embodiment described and shown in the drawings. Thus, for example, it is possible to provide the spacer part with only one row of teeth, the spacer part being connected to the plate or cover part only at one end, while the other end of the spacer part is formed so as to be able to rest immediately against the base in question. Furthermore, as previously mentioned, the number of teeth in each row may be greater than exactly ten, as shown in the drawings.

Claims (6)

6 65590 A spacer for pallets, comprising a tubular part having at least one end a series of substantially axially extending fastening strips (3a) for projecting into and connecting the tubular plate forming part (11), on the other hand a series of support or stop members (3) extending at an angle, preferably at right angles to the fastening strips, which, like the fastening strips 10, are formed integrally with the pipe section itself having a polygonal cross-sectional shape of axially extending by means of bending edges (7) located in the boundary areas 15 between the fastening strips (3a) and the abutment members (3), characterized in that each pipe wall part (12) delimited by the two abutment bending edges (7) communicates with said abutment members (3), extends at an angle to two other adjacent pipe wall sections on either side of it (1 2) places. Spacer part according to claim 1, characterized in that the pipe part has second bending edges (8), each running between two pipe wall parts (12) extending at an angle from each other from the fastening strips (3a) substantially parallel to the first 25 bending edges (7). ), stiffening not only the pipe section wall itself but also the fastening strips. Spacer part according to Claim 2, characterized in that the second bending edge (o) 30 extends substantially from the tip of the adjacent fastening strip. Spacer part according to claim 2 or 3, characterized in that said second bending edges (3) are located closer to the center of the pipe section than the first bending edges (7). 65590 Spacer part according to one of the preceding claims, characterized in that the number 5 of pipe wall parts (12) delimited by the first two bending edges (7), which determine the polygonal shape of the pipe part, rises to at least five. Spacer part according to Claim 2 or 3, characterized in that each individual fastening strip (3a) has a plurality of second bending edges (3a, 3b, 3c). 10