FR2569660A1 - STABLE PALLET FOR CYLINDRICAL FORM PRODUCTS - Google Patents

Abstract

THIS PALLET IS SHAPED AS A COMBINATION, ON THE ONE HAND, BY A RECTANGULAR FRAME 6 SUPPORTING A CRADLE 4 WEARING THE EXTERNAL CURVATURE OF THE ROLLS OVER PART OF THEIR CIRCUMFERENCE, AND ON THE other hand, BY TWO DOUBLE UPRIGHTS 5, EACH DOUBLE UPRIGHT 5 BEING SHAPED BY A FOLDED TUBE IN THE SHAPE OF A ARCLE, THE FRAME 6 IS PROVIDED AT EACH ANGLE ON ITS UPPER FACE, WITH MEANS 17 OF THE LOWER END OF EACH DOUBLE AMOUNT 5 AND, ON ITS LOWER FACE, WITH MEANS 9 SUITABLE TO ENSURE THE SUPPORT OF FRAME 6 ON THE GROUND OR ITS MOUNTING ON THE UPPER PART 19, IN THE SHAPE OF ARC, OF EACH DOUBLE UPRIGHT 5 OF A LOWER PALLET 2. THE MOUNTING MEANS 9 ARE CONSTITUTED BY PRISMATIC FEET INCLUDING TWO SIDE SIDES 10, 11 EXTENDING INTO AND OUTSIDE OF THE PALLET AND AN OUTER SIDE 14 EXTENDING BETWEEN THE TWO SIDE SIDES 10, 11. THE DOUBLE UPRIGHTS 5 ARE FITTED ON THE FRAME 6 OF THE PALLET BY MEANS OF TUBULAR SLEEVES 17. THIS PALLET ALLOWS THE PALLETIZATION OF PRODUCTS IN THE FORM OF ROLLS AS WELL AS THEIR STACKING ON A FLOOR.

Description

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  STABLE PALLET FOR CYLINDRICAL FORM PRODUCTS

  The present invention relates to a stackable pallet for

  born in the palletization of products, and in particular of bags, presenting

in the form of rollers.

  Until now large paper bags, like cement sacks, were stacked on rectangular pallets

  traditional type; this method of delivery made it possible to obtain

  homogeneous compact grain of parallelepipedic shape,

  floor storage and stacking on one floor.

  The extensive automation of the bagging stations has led to a packaging of the bags in "rolls", the bags being superimposed in "shell" and wrapped around a central cardboard core using

  links to form rolls.

  For the transport of these rolls of sacks, rectangular pallets

  traditional type gules are used so far, the rollers are arranged by two side by side in the direction of the width of the pallet, and wooden wedges, extending over the entire width of the pallet, are nailed to the ends of the length of it to ensure the rigging

in rotation of these rollers.

  This temporary storage mode does not optimize the storage surfaces since the pallets thus produced can not stack; in addition, the parts of the rollers in contact with the pallets and the corners undergo deformations which can cause deterioration of the rollers; finally, the wooden corners reported on the pallet do not resist repeated transport and handling, because of their fragility, and only half of the pallets can

to be reused.

  There are devices for stacking traditional wooden pallets, using interlocking amounts

  under the pallets. Besides these traditional pallets are not suitable for

  for the transport and storage of products in rolls, these devices

  are composed of a multitude of parts, which compli-

  mounting and dismantling operations, and are not very stable

in high position.

  There are also flat bottom storage lockers for storing traditional pallets in height. These storage bins are not suitable for transporting and / or storing

  products in rolls or repeated handling.

  The object of the present invention is to remedy these inconveniences.

  and in particular to provide a pallet for products in the form of rollers that is adapted to the shape of these rollers, which is stackable, which is solid, easy to use and mount and safe. This object is achieved in that the pallet according to the invention is formed in combination on the one hand by a rectangular frame supporting a cradle conforming to the outer curvature of the rollers over part of their circumference and, on the other hand, by two double the uprights, each double amount being formed by a folded tube in the form of an arch, the

  frame being provided at each angle on its upper face, means of em-

  housing of the lower end of each double upright and, on its underside, means adapted to ensure the support of the frame on the ground or its nesting on the upper part in the form of an arch of

  each double amount of a lower palette.

  The cradle provides a bearing surface of constant cylindricity for the rollers, and therefore does not risk damaging them, and ensures

  also a dynamic stability of the rollers. The implementation of

  nally, by interlocking, double amounts allows the stacking of a

identical pallet in floor.

  Advantageously, the cradle is constituted by a rolled sheet shaped cylinder portion having substantially the same diameter as the rollers and extending over an arc of a circle at least equal to a quarter of the circumference of these rollers, which ensures a better

  keeping the rollers on the pallet.

  In order to ensure the interlocking of the upper part of each double amount of a pallet in the frame of the upper pallet, a substantially prismatic foot is provided at each corner of this frame on the underside thereof, each foot being fit

  to receive the upper part of an amount of a lower pallet.

  Each foot has two lateral flanks extending flaring from the underside of the frame respectively inwardly and outwardly at a predetermined angle to the vertical, said lateral flanks being spaced apart at their upper ends. a length corresponding to the largest transverse dimension of the tube constituting each double amount. These lateral flanks form

  a kind of funnel facilitating the introduction of the arch of each

  both in the prismatic part; they also ensure the positioning

  transverse of the arches of the double amounts of the pallet.

  Each foot also has an outside flank, extending

  between the two lateral flanks, flaring from the lower face of the frame outwards, forming a determined angle with the vertical. These outer flanks of the prismatic part ensure the longitudinal centering of the arches, that is to say in the longitudinal direction

  of the horizontal part of the arches.

  Advantageously, each outer edge of the prism portion

  the vertical forms an angle corresponding substantially to the curvature of the connections between the horizontal part and the

  vertical parts of each double arch-shaped upright.

  Advantageously also, a tubular sleeve extending vertically is provided at each corner of the frame, each sleeve being adapted to receive the lower end of a vertical portion of a

double amount.

  In order to facilitate the installation of the double amounts in the tubular sleeves they are cut at 45 in their upper part, which allows a quick and easy centering of the tubes forming the double amounts. This cut 45 also allows the centering and stacking of empty pallets on each other, cooperating

  with the external face 45 of the prism.

  In any case, the invention will be well understood and others

  characteristics will be highlighted using the description

  which follows with reference to the attached schematic drawing showing by way of nonlimiting example an embodiment of the pallet according to the invention - Figure 1 is a perspective view of two pallets according to the invention superimposed - Figure 2 is a view of Figure 1, Figure 3 and 4 are sectional views respectively

according to 3-3 and 4-4 of Figure 2.

  Figure 1 shows two pallets (2.22) according to the invention for products in the form of rollers (1), stacked one on the other. Each roll is formed for example by cement bags wrapped around a central cardboard mandrel so as to form a cylinder with a diameter of 1.70 m and length equal to 50 to 52 cm and is arranged in the direction of the width of the pallet, that is to say

  so that its longitudinal axis is parallel to the smallest side (measured

d off everything) from this palette.

  Each pallet (2, 22) is formed essentially of a rectangular metal base (3) supporting a cradle (4) rolled sheet, and two double amounts (5) each formed by a folded tube shaped arch. The base (3) of each pallet is constituted by a square frame (6) formed of tubes of rectangular section and reinforced by longitudinal members (7) and crosspieces (8) also in tube

  rectangular section (see Figures 2, 3 and 4).

  This base (3) of the pallet is provided at each corner with a foot (9) of prismatic shape. Each foot (9) has two lateral flanks (10,11) extending flaring on either side of a tube

  constituting the frame (6) of the base (3) of the pallet.

  These flanks (10,11) extend respectively outwardly and inwardly of the pallet forming with the vertical an angle

  equal to 30. They are folded horizontally in (12) at their lower part.

  to form the support surface of the pallet when it is placed on the ground. The distance between the outermost parts of the flanks

  side (10) is the overall length of the pallet.

  The feet (9) also comprise an outer flank (14) extending between the two lateral flanks (10, 11), flaring from the underside of the frame (6) to the outside. These outer flanks (14) form with the vertical an angle of about 45. A fourth flank (9a), extending vertically, of each foot ensures

the rigidity of it.

  The flanks (9a, 10, 11, 14) of the prismatic feet (9) do not extend

  not in the width direction beyond the frame (6), so that the overall width of the pallet (2) is formed by the length

  on one side of the frame (6) (the latter being equal to 1.20 meters maximum).

  This arrangement is particularly advantageous because it allows two pallets (2, 22) to be placed side by side in the useful width of a

  truck (the latter being equal to 2.44 m).

  The cradle (4) is formed by a cylindrical surface having a diameter of 1.70 m extending over a circular arc of about 90, in this way the cradle (4) matches the outer curvature of the goods rolls (1). over a quarter of their circumference, which ensures a good dynamic stability of the rollers on the pallet (2) and a constant cylindricity not risking damaging these rollers (1).

  The curbs of the sheet metal cradle are folded in (16) (Cf.

  1) in the direction of the width of the base (3) of the pallet to stiffen the structure and not have sharp edges, the sheet being folded and descending between the sleeves (17) to the frame (6) . Tube portions (15) are also added to the cutting edge of the sheet to eliminate any risk of cuts. As a result,

  pallets are very safe to handle.

  Tubular sleeves (17) are welded to the upper portion

  the base (3). Each sleeve (17) is disposed at an angle of the frame forming the base, being juxtaposed to the cradle (4), and extends vertically. Each sleeve is of a diameter slightly greater than the diameter of the tube constituting each double upright (5) and is therefore able to receive one end of these uprights. These sleeves (17) have a length of about 250 mm to ensure a fitting

  upright (5) allowing only a very small deviation

  of these amounts (5), due to the necessary clearance for easy installation of these in the sleeves, and thus ensuring good stability

for the stacked set.

  These tubular sleeves (17) are cut at 45 in their upper part to allow a quick and easy centering

  tubes constituting the amounts (5). This cut at 45 also allows

  stacking the pallets (2,22) empty on each other, by cooperation of the slope at 45 of the tubular sleeves with that of the outer side (14) of the feet (9) of each pallet (2). Thereby,

  the handling as well as the transport of the empty pallets is facilitated.

  Each double upright (5) is formed by a tube of circular section and diameter 50 mm folded arch form. Each double upright (5) therefore comprises two vertical parts (18) and a horizontal part (19) connected together by two transition zones (20) having a radius of curvature of about 200 mm corresponding substantially to the slope of the outer flanks ( 14) of each foot (9)

of the pallet (2,22).

  For the stacking of an upper pallet (22) on a lower pallet (2), the double uprights (5) of the lower pallet (2) are set up by their vertical parts (18) in the sleeves (17) associated of the latter and the upper pallet (22) is then recessed by its centering feet (9) on the horizontal parts (19) of the double uprights (5) of the lower pallet (2). The lateral flanks (10, 11) of the prismatic centering feet (9) of the upper pallet (22) form a kind of funnel facilitating the introduction of the double upright (5) of the lower pallet (2) into them. and ensure, in addition, a centering

  and longitudinal positioning (i.e. in a direction

  to the axis of the rollers (1)) of the upper pallet (22) relative to

at the lower pallet (2).

  The outer flanks (14) of the feet (9) cooperate with the curvatures (20) of the uprights (5) of the lower pallet (2) and provide the transverse centering (that is to say in a direction parallel to the axis

  rollers) of the upper pallet (22) relative to the lower pallet

(2).

  As the bearing surface of each arch (19) at the top of each of the prism-shaped centering feet (9) is constituted by a face of a tube constituting the frame (6), this face being flat, the laying plane between the upper pallet (22) and the arch (19) of the lower pallet (2) is perfectly rectilinear and the assembly

  stacked (2,22) will therefore be particularly stable.

  The locations of the longitudinal members (7) and cross members (8) are

  according to the minimum and maximum dimensions of the transport trolleys.

  existing forklift currently on the market. Two metal angles

  21) are placed on the underside of the frame (6) forming the base (3) of each pallet (2,22), along the length thereof, on each side of the frame (6). These two angles (21) serve as keying and eliminate any risk of misalignment when taking the pallet, in the case of use of a pallet transport carriage manual forks close. As a result, the risk of lateral tilting of the load

the most important is eliminated.

  It goes without saying that the present invention is not limited to the single embodiment shown here by way of non-limiting example and embraces, on the contrary, all the embodiments

  similar or equivalent means.

Claims (8)

- CLAIMS -   Stackable pallet for products in the form of rolls, characterized in that it is formed in combination, on the one hand, by a frame (6) supporting a rectangular cradle (4) conforming to the outer curvature of the rollers (1). ) on a part of their circumference, and, secondly, by two double amounts (5), each double upright (5) being formed by a folded tube shaped arch, the frame   (6) being provided at each angle on its upper face, means of nesting   (17) of the lower end of each double upright (5) and, on its underside, means (9) adapted to ensure the support of the frame (6) on the ground or its interlocking on the upper part ( 19), fit   of arch, each double upright (5) of a pallet (2) lower.   2- pallet according to claim 1, characterized in that the cradle (4) is constituted by a rolled sheet shaped cylinder portion having substantially the same diameter as the rollers (1) and   extending over an arc of at least a quarter of the circumference of these rollers (1).   3- pallet according to all of claims I or 2, characterized   in that the interlocking means (9) are constituted by prismatic feet (9) and in that each foot (9) has two lateral flanks (10, 11) extending flaring from the lower face of the frame (6) respectively inwardly and outwardly at a predetermined angle to the vertical, said lateral flanks (10,11) being spaced at their upper ends by a length corresponding to the greatest transverse dimension of the tube constituting each double amount (5).   4- pallet according to claim 2, characterized in that each foot (9) also comprises an outer flank (14) extending between the two lateral flanks (10,11) perpendicular to them flaring from the face lower part of the frame (6) towards the outside, forming   a determined angle with the vertical.   Pallet according to claim 4, characterized in that   each outer flank (14) of the prismatic part forms with the vertical   an angle corresponding substantially to the curvature (20) of the connections.   between the horizontal part (19) and the vertical parts (18)   each double amount (5) in the form of an arch.   Pallet according to any one of the preceding claims.   characterized in that a tubular sleeve (17) extending vertically   cradle is provided at each corner of the frame (6), each sleeve (17) being adapted to receive the lower end of a vertical portion (18) double amount (5).   Pallet according to claim 6, characterized in that   each tubular sleeve (17) is cut at 45 in its upper part.   Pallet according to any one of claims 1 to 7,   characterized in that the edges of the cradle (4) are provided with means   (15,16) eliminating all risks of cuts.   Pallet according to any one of claims 3 to 8,   characterized in that the lateral flanks (10,11) of each foot make an angle of 30 with the vertical.   Pallet according to any one of claims 4 to   9, characterized in that the outer flanks (14) of each foot (9)   make an angle of 45 with the vertical.