FI96291B - The roll cage - Google Patents

Description

96291

Skateboard. This invention relates to a roller comprising a bottom wall, a second wall extending upwardly from the edge zone of the bottom wall, on the edge zone of which the bottom wall is articulated so as to be pivoted between a substantially horizontal, lowered space in which it extends transversely to the second wall. , where it extends upwards next to the second wall, the bottom wall 10 comprising an edge part in the second edge zone of the bottom wall.

Rollers made of metal lattice are known, for example, from EP 183 889 and FR 7 101 172, in which the roller can be assembled by folding the bottom wall upwards-15 around an edge hinged from one horizontal bar to the other along the bottom of the respective opposite side walls, and then moving the two side walls inward toward each other. In the unstacked state of the rollers, the opposite edge of the bottom wall rests on 20 opposite horizontal bars. In prior art rollers, the bottom wall can be freely turned upwards from its lowered position. This uncontrolled freedom can be detrimental to all prior art rollers, but especially to the roller of FR 7 101 172, where the bottom wall 25 acts to keep the two horizontal bars apart to prevent the roller from collapsing into an unwanted pile. A particular risk in this case would arise if the roller strike of FR 7 101 172 were to be handled by means of a fork crane by placing the forks in the space 30 between the bottom wall and the floor and then raising the forks. Such undesired upward pivoting of the bottom wall and lateral inward collapse of the roller can be particularly detrimental in automatic handling systems with such fork cranes.

The object of the present invention is to eliminate the disadvantages which have occurred in the past. This object is achieved by a roller according to the invention, characterized in that the retaining means are arranged on the bottom wall pivot path from the lowered space to engage the bottom wall edge portion wherein the retaining means do not prevent the bottom wall from being turned from the lowered space to the raised space.

Thanks to the invention, it is possible to prevent an undesired turning of the bottom wall upwards from its lowered state.

In order that the invention may be clearly understood and readily practiced, reference will now be made, by way of example, to the accompanying drawings, in which: Figure 1 is a perspective view of a ready-to-use roll, Figure 2 shows a plurality of rollers completely similar to those shown in Figure 1 in a stored state; Fig. 3 shows a side elevational view of the roller of Fig. 1, Fig. 4 shows a side elevational view of the bottom wall of the roller, and Figs. 5 and 6 show the respective parts V and VI of Fig. 3 in more detail.

Referring to Fig. 1, the roller comprises a substantially V-shaped base part 1 extending horizontally and connected at its ends by corresponding vertical joints to the respective horizontal base parts 2 and 3 of the roller side walls 4 and 5. The respective ends of the sections 2 and 3 have swivel wheels 6. Fig. 1 is shown on parts 2 and 3 resting on a rectangular bottom wall 7 made of steel wire mesh such as walls 4 and 5. In its second edge zone, the steel wires in the bottom wall 7 terminate as hooks 8 with cut ends 9 which, despite not being not shown in Figures 3 and 6, bent 96291 3 around the lowest horizontal steel wire 10 of the wall 4 in a substantially closed loop to hinge the wall 7 in the wall 4. In the opposite edge zone of the wall 7 the steel wires are bent to form hooks 11 which are not cut but instead, when the wall 7 is mounted on a roller remain in the shape shown in Fig. 3, in which they are U-shaped as seen from the side portrait, and as shown in Fig. 5, in which they are inverted U-shaped as seen in the end portrait. In the state shown in Figures 1 and 3, the hooks 11 engage over the lowest horizontal steel wire 12 of the wall 5 and thus tend to keep the roller ready for use. However, if the roller is to be handled by a fork-crane, whether or not the roller is in the condition shown in Figure 1, there would be a risk that the wall 7 will turn up as the hooks are lifted off the steel wire 12 and possibly walls 4 and 5. pivot inwardly around the aforementioned joints. To prevent this from happening while still allowing the roll to be easily stacked for stacking, the steel wire projections 13 are attached to the respective vertical wires 14 of the wall 5 immediately above the steel wire 12 and the wall 7 can be moved to both horizontal walls 4. and 5 parallel to a limited amount equal to the horizontal spacing of the vertical steel wires of the wall 5 minus the total dimension measured along the steel wire 12 of each hook, this limited amount being slightly greater than the maximum protrusion of each protrusion 13 from the horizontal steel wire 12 measured along its vertical 14. Therefore, in the relative position of each protrusion 13 and the hook 11 immediately below them, in the state shown in Fig. 3, the protrusions 13 rest in the reversal path of the bottom wall 7 from its calculated 4 9 shown in Figs. 6291 from the state to its raised state shown in Fig. 2 and thus engage the adjacent edge zone of the wall 7 to prevent the wall 7 from turning from its lowered state, keeping it in this state. The roller is treated with a fork-5 crane in the relative position of the protrusions 13 and the hooks 11 shown in Fig. 3. The lower surface of each protrusion 13 is preferably inclined slightly towards its vertical steel wire so that the associated hook 11 is wedged below it during normal use to prevent the hooks 11 and thus the wall 7 from vibrating under the protrusions 13 during such use. When it is desired that the roller should be folded, the wall 7 is manually slid horizontally with respect to the protrusions 13 to bring the hooks 11 under the protrusions 13, allowing the wall 7 to be pivoted upwards around the horizontal steel wire 10 from the lowered space shown in Fig. 1 to the raised space.

A detachable belt 15 is provided to prevent the goods 20 transported in the roller from forcing the walls 4 and 5 too far outwards.

Claims (8)

96291 A roller comprising a bottom wall (7), a second wall (4) extending upwards from the edge zone of the bottom wall (7), on the edge zone of which the bottom wall (7) is articulated so as to be turned in a substantially horizontal, lowered space, it extends transversely to the second wall (4) and between the raised space where it extends upwards adjacent to the second wall (4), the bottom wall (7) comprising an edge part in the second edge zone of the bottom wall (7), characterized in that the retaining means (13) is arranged on the pivot path of the bottom wall (7) from the lowered space to engage the edge portion of the bottom wall (7) to prevent the bottom wall (7) from turning from the lowered space, whereby the bottom wall (7) and retaining means (13) can be moved relative to each other to bring the retaining means (13) to a relative position in which the retaining means (13) do not prevent the bottom wall (7) from turning the aggregate state of 20 raised state. Roller according to claim 1, characterized in that the bottom wall (7) can be moved relative to the second wall (4) and the retaining means (13) to bring the bottom wall (7) and the retaining means (13) into a relative position in which the retaining means (13) ) do not prevent the bottom wall (7) from being turned from the lowered space to the raised space. Roller according to Claim 1 or 2, characterized in that the retaining means (13) are arranged on a third wall (5) which is arranged opposite the second wall (4). Roller according to claims 2 and 3, characterized in that the retaining means (13) project substantially horizontally along the third wall (5) 35 and the bottom wall (7) can be moved substantially horizontally along the third wall (5) by a limited number. 96291 Roller according to claim 4, characterized in that the walls (4, 5, 7) are lattice-shaped and the substantially horizontal parts of the bottom wall (7) slide on substantially horizontal parts of the second and third walls (4, 5) and their substantially horizontal displacement is limited by substantially vertical parts (14) of the third wall (5), to which substantially vertical parts (14) the retaining means (13) are attached. Roller 10 according to one of the preceding claims, characterized in that the bottom wall (7) is wedged under the retaining means (13) in a relative position in which the retaining means (13) prevent the bottom wall from turning from its lowered state. Roller 15 according to Claims 4 and 6 or 5 and 6, characterized in that the retaining means (13) have lower surfaces which are slightly inclined relative to the horizontal in order to wedge the bottom wall (7) below them. Roller according to one of the preceding claims, characterized in that the retaining means 20 (13) comprise steel wire projections (13). i ·: **. * MB lii Λ-m ·. i 9629Ί