FI87637B - Loading platform for truck - Google Patents

Abstract

The invention relates to a loading platform 3 for a truck 2 provided with a tipping device, which loading platform comprises a base 4, sides 5 passing upwards from the base 4, an openable backboard 6 and a load-guiding extension 8 placed behind the backboard 6, the base 4, the sides 5 and the backboard 6 between them delimiting a loading space 7. To achieve an optimal weight distribution of the load combined with a durable and reliable structure without disadvantages for the other traffic, the side flanks 5 pass beyond the rear edge 4b of the base in the longitudinal direction of the loading platform and the extension comprises an auxiliary base 8 placed at the ends of the side flanks 5 and between the same, which auxiliary base can be displaced into a tipping position, in which it forms an extension of the base 4, and into a transport and loading position, in which it lies pivoted relative to the base plane 4. <IMAGE>

Description

1 87637

Pallet for truck

The invention relates to a pallet for a truck equipped with a tipping device according to the preamble of appended claim 1.

For example, a pallet intended for the transport of earth is intended to be dimensioned in such a way that the weight of the evenly loaded load compartment is optimally distributed on the various axles of the truck. Such dimensioning enables visual loading of 10 e.g. a wheel loader so that the static axle weights are not exceeded. The load is unloaded by tilting the pallet attached to the vehicle body by means of the tipping axle to a position where the soil drains down.

15 Pallets with hydraulically operated headboards hinged at the top are usually used for variable soil transport. This type of sternboard allows for controlled drainage of soil during tipping, and thus, for example, the spreading of crushed stone into a smooth mat by driving and tipping at the same time.

The distance between the tipping axle and the rear edge of the pallet bottom is commonly referred to as "crossing". The longer this crossing, the more stable the platform is in the tipping situation, ·· because the weight of the unloading load balances the platform. On the other hand, this overhang allows the soil to be guided for as long as possible, for example when tipping into a silo.

The problem with the construction of pallets for the transport of soil is how the benefits of crossing can be combined with load-bearing regulations.

• 30 It is often the case that load capacity regulations force the load compartment to be positioned in such a way that a sufficiently long exceedance cannot be achieved without special measures. The problem applies in particular to four-axle trucks (with 2 front axles) and semi-trailers.

. 35 2 87637

In known pallets, the problem has been eliminated even with such complex solutions as pallets or bogie packages moving backwards before tipping. However, there are two most common solutions.

5 The first solution is to make the sides and bottom of the pallet as long as a suitable crossing requires and to delimit the load compartment with a hinged stern deck from above so that the load compartment ends at a point suitable for the load regulations before the actual pallet ends. In the second ratio, in addition to the conventional top-hinged headboard, an additional stern hinged at its lower part to the outer edge of the pallet bottom is used as the pallet rear, which in its open position remains parallel to the bottom of the pallet, i.e. continues when the bottom is tilted.

15 However, both structures described above have their own shortcomings, which are described below. On a pallet according to the first solution model, the operator must inspect and clean the post-stern platform after each loading and tipping. This is important for road safety, as even large rocks can remain on the plateau, which can fall unobstructed into other traffic while driving. A pallet according to the second solution model, with an additional tailboard hinged at the bottom, allows the soil to drain down the barrier at its edges when tipping. If it is desired to prevent overflow, it is necessary to build edge guides on the side surfaces of the auxiliary stern board, which are usually in the shape of a quarter-V-wheel. For reasons of appearance and safety, the edge guides are designed to be constructed so that when the additional stern board 30 is closed, the guides are inside the edge of the platform (in the space between the outer and inner panel of the edge). This construction has proven to be vulnerable in its operations, especially during the winter, when the soil freezes at the corners of the guides and the stern deck, preventing the additional stern deck from closing. Forcibly closing the auxiliary stern in this situation 3 87637 can in turn lead to the rupture of the stern. The construction has also proved to be short-lived, as the lack of space makes it difficult to design the edge guides to be sufficiently rigid against the bumps caused to them by the stones (in order to work, the edge guides must retain their shape).

The object of the present invention is to overcome the problems described above and to provide a new type of pallet which, by means of a simple structure, enables optimal weight distribution without the problems described above. This is achieved by a pallet according to the invention, characterized in that the extension is an auxiliary base arranged between them at the end of the side edges and hinged at its rear end to the rear end of the edges 15 to a substantially bottom level extension. for loading to a position where its leading edge is detached from the trailing edge of the base.

The idea according to the invention is to dimension the side edges of the pallet 20 according to the total length of the load space and the required crossing and to fit an auxiliary base at the end of the pallets which rises or falls during loading and transport to such a position that the soil does not remain on it.

According to a further preferred embodiment of the invention *, in the transport and loading position, the auxiliary base is turned downwards at a substantially right angle to the plane of the base, whereby at the same time it forms a protective buffer in the event of a collision.

The invention will now be described in more detail with reference to an example according to the accompanying drawing, in which Fig. 1 shows a truck with a pallet according to the invention seen from the side when the pallet is in the transport and loading position, and. Fig. 2 shows a truck with a pallet according to the invention, seen from the side, with the pallet in the tipping position.

The figures show a pallet 3 mounted in a conventional manner on a truck 2 equipped with a tipping device 1, comprising a base 4 and edges 5 extending upwards from its edges and an openable sternboard 6 at the rear edge 4b of the base, hinged to the top of the side panels. Together, the base, sides and stern delimit the load space 10. According to the invention, the side panels 5 are dimensioned according to the combined length of the load space and the required crossing, thus extending in the longitudinal direction of the pallet over the rear edge 4b of the base 4. An auxiliary base 8 substantially the width of the pallet base is hinged to the lower edge of the rear part of the side panels at its rear end. The hinge points 9 are preferably located with an imaginary extension of the base 4, whereby the auxiliary base 8 can turn completely flush with the base 4.

In Fig. 1, the pallet is in the transport and loading position-20 (lowered), whereby the auxiliary base 8 has turned to a substantially vertical position, i.e. it is substantially perpendicular to the plane of the base 4. In this position, therefore, an empty space 10 is left between the rear deck 6, the rear of the side panels 5 and the auxiliary base, from which the soil-25 material falling past the load space can fall to the ground. When turned to the position according to Figure 1 (where the front edge 8a of the sub-base is downwards), the sub-base forms a kind of bumper behind the truck, which at the same time prevents side edges from forming road safety projections and provides protection in rear-end collisions. At the same time, the auxiliary base acts as a curative or similar protection while driving. The rear edge 8b of the sub-base ends flush with the side panels 5 and is bevelled to conform to the end surfaces of the side panels.

When desired, the load, is turned apupohja the arrow 35 in Figure 1 A of substantially 90 degrees later il 5 87637 clockwise direction to a position where its leading edge 8a is substantially the bottom 4 of the back edge of the plane 4b, and a substantially closed bottom at the rear edge, whereby the apupohja 8 formed as shown in Figure 2 to the bottom 4 an extension in its plane just 5 as if the entire pallet were longer. When unloading, the steering can thus be performed as far as possible and the platform becomes as stable as possible.

Although the invention has been described above with reference to the example according to the accompanying drawing, it is clear that the invention is not limited thereto, but can be modified in many ways within the scope of the inventive idea set out in the appended claims. The hinged subsoil can turn from the position according to Fig. 2 upwards (clockwise) to such an angle that the soil 15 does not remain on it, or it can be rotatable. The auxiliary base can also be at a small angle to the base of the pallet in the tipping position. In some cases, it may also be advantageous to move the hinge point on arms of different lengths from the lower edge of the flange to another point, e.g. the upper edge of the pallet.

Claims (2)

6 87637 A pallet (3) for a truck (2) with a tipping device (1), the pallet comprising: 5. a base (4), - side flanges (5) extending upwards from the base (4) and extending longitudinally to the rear edge (4b) of the base ), - a load-extending extension (8) arranged behind the 10th transom (6) and movable to the tipping position, where it is an extension of the base (4), and to the transport and loading position, where it has turned relative to the plane of the base (4), the base (4), the sides (5) and the stern (6) together delimiting the load compartment (7), characterized in that - an extension is arranged at the end of the side edges (5) between them an auxiliary base (8) hinged from its rear end to the rear end of the sides (5) substantially to an extension of the base 20 of the base (4) so that for tipping it can pivot substantially flush with the base (4) and for transport and loading to its leading edge (8a) ) is disconnected after from the rear edge (4b). Pallet according to claim 1, characterized in that in the transport and loading position the auxiliary base (8) is turned downwards at a substantially right angle to the plane of the base (4). li 7 87637