FR2778637A1 - Stackable combined pallet and trolley for storage and transport of goods - Google Patents

Abstract

The pallet consists of a platform (1) with rollers (R) attached to its underside, at least one of which is steerable and/or fitted with a brake. At the corners of the platform, there are blocks (4) designed to receive removable uprights of aluminum tubing that can be used to support horizontal crossbars or additional platforms. The rollers are located in recesses in the underside of the platform and held in place by screws, while the upper surface is shaped to allow other platforms to be stacked on top of it when not in use.

Description

TRANSPORT AND STORAGE TROLLEY

  The present invention relates to a pallet-cart for transport and storage comprising at least one tray

  lower able to support goods.

  We already know the classic wooden pallets or

  in molded plastic, for storage or trans-

  port of the goods, these pallets being sometimes supplemented by removable or folding walls, and possibly by a cover, to then constitute boxes; the height of these boxes, in general, is not adjustable, and their handling requires the use of pallet trucks or hydraulic pallet lifts. In addition, their maintenance is often complicated, and their weight

  as well as their cost price are too often prohibi-

  tifs. The object of the present invention is to avoid these drawbacks of the prior art, and to design a pallet-trolley for transport and storage of the type defined at the start, offering much more handling and storage possibilities than pallets or cases.

currently known.

  To this end, a transport and storage pallet-cart in accordance with the present invention is mainly characterized in that it further comprises: - means suitable for ensuring, under said lower plate, the fixing of rolling casters, one of which or several steering castors and / or provided with brakes; - At the angles of said tray, receiving pads for removable uprights capable of supporting, at a distance from said lower tray, an intermediate or upper tray similar to the lower tray and clean, in the absence of said uprights, to fit together by its surface lower on the upper surface of complementary shape

  of said lower shelf or a similar underlying shelf

  ble to the previous ones; and - at least one or more pairs of crosspieces or belts with top and windows suitable for being engaged, in a removable manner, on said uprights and at least along

  on two opposite sides of the corresponding plate or plates.

  We will see below how all of these

  tions avoid the disadvantages of art

  earlier, and bring additional benefits.

  To do this, an embodiment of the invention is described below by way of nonlimiting example, with reference to the figures of the appended drawing in which: - Figure 1 shows in perspective the different elements of a pallet -trolley according to the invention (with the exception of the casters); - Figure 2 shows in perspective the underside of a tray;

  - Figure 3 shows in perspective a mode of use

  sation of a pallet-cart comprising two identical trays, for the storage of tires; - Figure 4 shows in perspective the possibility of storing the different elements of a pallet-trolley according to the invention (with the exception of the casters) on the upper surface of a tray; - Figure 5 shows lower plates equipped with rollers, for the constitution of a train of carriages; and - Figure 6 shows an example of handling

  goods on such a train of wagons.

  In the various figures, the plates, all identical, of generally rectangular shape seen in plan,

  and advantageously in molded polyethylene, are referenced 1.

  In each of their angles and projecting on their upper surface 2, advantageously provided with grooves 3, are located studs 4 provided with mounting holes 5 for the engagement of tubular uprights 6, advantageously made of aluminum and which is therefore easy to section at the

  desired length, depending on the intended use for the pallet-

  cart. With reference to FIG. 2, it can be seen that, projecting from the lower surface 7 (grooved at 8) of each plate 1 and at each of its angles are located, at right angles opening diagonally outward, the walls 9 of angle housings 10 of shape complementary to that of the studs 4 and suitable for fitting therein, as visible

  in Figure 1. This allows quick and automatic centering.

  as trays on top of each other, avoiding any risk of shifting the stack and any risk of falling,

  as in the case of known pallets and cases.

  We understand that thanks to these provisions we can stack any number of trays 1, for example for

their storage.

  You can also superimpose trays 1 through the

  medial of the tubular uprights 6, as visible in FIG. 3, this by engaging the base of the uprights in the mounting holes 5 of the lower plate, and by wedging their

  upper ends in the housings 10 of the above plate

  jacent, and so on until the number of

desired trays.

  The lower plate of the stack can carry a set of four ball rollers R, at least two of which can be steerable (FIGS. 5 and 6), and at least one of which is provided with a brake, which makes it possible to constitute carriages transport (possibly road) or trains of several such carriages, connected by couplers A. The bases of these casters R can be fixed in any suitable location of the plates 1, near their

  angles, with machine screws and nuts.

  The fastening means for casters indicated above will therefore simply be holes provided for these screws

  in the trays intended to constitute these trolleys.

  Finally, pairs of plastic sleepers are provided, referenced 13 and 14 and suitable for being removably engaged on the uprights 6, these sleepers or bars having the role of consolidating the pallets and constituting retaining members for the objects. which are stored there, for example tires P, as shown in FIG. 3. Two different types of sleepers can be provided: the sleepers 13, the ends 15 of which are hollowed out so as to be able to fit onto the studs 4 (FIG. 3 ), and cross members 14 with a straight profile. In both cases, these crosspieces can slip on or snap onto the uprights 6 thanks to their ends in the form of

  elastic pliers 16. These crosspieces can be snap-on

  tees or threaded in the four possible directions, interior, exterior, top and bottom in order to adapt to the goods to be retained on the tray. The blocking of these crosspieces is done by simple rotation in their plane, which prevents them from

slide along the uprights.

  We see that after disassembly (Figure 4) the crossbars 13, 14 and uprights 6 can be conveniently stored on the upper surface 2 of any plate 1, without interfering with the superposition of another plate, since even without interposition of the uprights 6, and thanks to the height of the walls 9, a space E is provided between two superimposed trays, as visible in FIG. 1. The uprights 6 are advantageously stored in the grooves 3,

  which prevents them from rolling outside.

  It should also be noted that these crosspieces 13, 14,

  for example in molded polyethylene, could be replaced

  created by belts with polypro- top and windows F

  honeycomb pylene and articulated on the uprights 6, which would still allow to see the stored products while protecting them from dust (see Figure 6). In that case,

  these windows can engage in corresponding grooves

  dantes 12 of said pads 4 of the underlying tray 1.

  Figure 6 also shows that the pallets-

  trolleys according to the invention can be used both as stackable pallets, which can be handled by a conventional forklift C with forks, and as trolleys in a train of coupled trolleys, pulled by a tractor T to be brought in,

  for example, an assembly line.

  In addition to the advantages which already emerge from the above, a pallet cart according to the invention has the advantage of easy maintenance, being easy to clean by washing. Their molded plastic construction allows

  also the use of magnetic identification labels

ques, readable from a distance.

  In addition, these pallet-trolleys are relatively light (less than 20 kg) for the standardized dimensions of 1.2 x 1 m for the trays, while having a significant capacity, of the order of 200 kg per level, out of five.

  levels. Finally all the parts are of course reused.

  sands, quickly removable and washable a large number

of times.

  It should be noted that the grooves 3 and 8 of the plates also have the effect of increasing their resistance depending on the

two axes of their plane.

  As for space E, it will also allow the use of manual or hydraulic pallet fork forks with double entry, i.e. by entering the forks in the direction of

  the width like that of the length of the plate.

Claims (10)

  1. Pallet-cart for transport and storage comprising at least one lower plate capable of supporting goods, characterized in that it further comprises: - means suitable for ensuring, under said lower plate (1), the fixing of bearing rollers (R), one or more of which are steerable and / or provided with brakes; - at the corners of said plate (1), studs (4) of   reception for removable uprights (6) suitable for supporting   ter, at a distance from said lower plate (1), a plate   intermediate or upper (1) similar to the lower plate   laughing (1) and clean, in the absence of said uprights (6),   fit by its lower surface on the upper surface   of complementary shape of said lower plate (1) or of an underlying plate (1) similar to the previous ones; and - at least one or more pairs of crosspieces (13, 14) or windows (F) suitable for being engaged, in a removable manner, on said uprights (6) and at least along   two opposite sides of the corresponding plate (s) (1).   2. Pallet-cart according to claim 1, characterized in that said trays (1) and crosspieces (13, 14) or belts with top and windows (F) are in   molded polyethylene or cellular polypropylene.   3. Pallet-cart according to claim 1 or 2, characterized in that said means suitable for fixing the rolling rollers (R) are holes provided near the corners of the plate (1) for the passage of screws   for fixing the bases of said rollers (R).   4. Pallet-cart according to any one of   previous claims, characterized in that said   removable uprights consist of aluminum tubes (6) sectionable to the desired length, suitable for being engaged by their lower ends in mounting holes (5) of said studs (4) of the underlying tray (1), and to be wedged by their upper ends in   corner housings (10) of the overlying tray (1).   5. Pallet-trolley according to claim 4, characterized in that said studs (4) have a shape complementary to that of said housings (10), so that be able to fit into it.   6. Pallet-cart according to claim 4 or 5, characterized in that said housings (10) are delimited by two walls (9) at right angles opening diagonally outwards.   7. Pallet-cart according to claim 6, characterized in that it comprises a belt with top   and windows, which can engage in corresponding grooves   dantes (12) of said studs (4) of the underlying tray (1).   8. Pallet-cart according to claim 6 or 7, characterized in that the height of said walls (9) is such that between two plates (1) fitted one on the other   is provided sufficient space (E) to allow the   fitting of said uprights (6) and crosspieces (13, 14) useless   his. 9. Pallet-cart according to any one of   previous claims, characterized in that the   upper (2) and lower (7) surfaces of said plates (1) are grooved (3, 8).   10. Pallet-cart according to any one of   previous claims, characterized in that the   sleepers include sleepers (13) with ends (15) hollowed out to be able to fit onto the studs (4)   underlying, and cross members (14) with a straight profile.