FR2606123A1 - SMOOTHED SLIT FOR SUPPORTING LOADS, ESPECIALLY FOR STORAGE LOCKERS - Google Patents

Abstract

PROFILED BAND OBTAINED FROM A PROFILED STRIP TO FORM A PROFILE WITH BETWEEN A VERTICAL CENTRAL CORE 10 AND UPPER AND LOWER PLATES 12, TWO SYMMETRICAL BOXES CONSTITUTED OF TWO VERTICAL PARTS 13 FOLLOWED BY TWO INCLINED PANELS 14, ONE OF THE INCLINED PANS EXTENDING THE CENTRAL SOUL, AND THE OTHER ENDING WITH A LIP FOLDED ALONG THE SAID CENTRAL SOUL ON WHICH IT IS WELDED, THE CENTRAL SOUL BEING PROVIDED WITH A RIB 16 NEAR THE END OF THE LIPS. APPLICATION TO LOAD SUPPORT FOR STORAGE LOCKERS.

Description

The invention relates to shaped rails used to produce

including storage lockers

various products and pallets.

  Storage bins are usually known as vertical metal ladders.

  on which horizontal beams or rails are mounted

  which directly support pallets, or

  its, or tablets adapted to stored loads.

  Ladders and rails must meet the requirements

  following. They must be strong and rigid to

  to support a maximum load without undergoing too large boom and without implying a significant weight of constituent material, nor a large number of elements forming these supports. They must also adapt easily to each other to allow different storage volumes to be created according to the needs, which leads to make them integral with the help of a simple, fast assembly.

  and on. Finally, they must have locking systems

  to avoid their separation in case of

false maneuver.

  There is a wide variety of smooth

  meet these requirements and whose profiles are

  depending on the load to bear and their range between two scales. Among the simplest are known beams I-shaped hot-rolled, called IPN or IPE, obtained from standard profiles, but whose part

  vertically is of considerable thickness, which

  therefore presents more material used and a

greater weight.

  In addition, these standard profiles are manufactured

  at well-defined lengths that do not often correspond to the dimensions of the smooth sought to achieve storage modules. It is therefore necessary to cut them to the desired length and then there are not insignificant drops of profiles. Finally another disadvantage lies in the fact that these I-beams have an imperfect finish quality, which requires before painting, preparatory work

long and expensive.

  This is why it was sought to produce profiled elements that are better adapted than these I-beams to form load-bearing rails, elements obtained with

  from strips cut and profiled according to a determined profile.

  This is how we know profiles in

  C-shaped, very simple to make but whose vertical part

  wedge is offset from the horizontal supports.

  This arrangement according to which the center of gravity is spaced apart from the torsion center means that a profile having this shape always undergoes deflection (or spillage) bending.

when it supports a charge.

  To avoid this inconvenience and to ensure that the center of gravity and the center of torsion are as close as possible we have in some cases made folds at the horizontal bearing faces for the soul

  vertically shifted towards the inside of C. This improvement

  However, it remains insufficient for most

tions.

  We also thought to make profiles

  squares or rectangles made of a single piece that are

  metrics and can not be spilled, but they are heavy and expensive. Therefore, in many cases it is preferred to use other types of so-called nested profiles which are symmetrical with respect to a vertical plane, including the centers of gravity and torsion.

  are confused, which avoids the spill.

  They are made from two nested C-profiles

  into one another to form a smooth having two green souls

  ticales; thus obtaining mechanical characteristics

  interesting, it is nevertheless to the detriment of the cost price mainly because of the quantity of material

  committed and interlocking to achieve.

  To solve these problems, the Applicant has devised a smooth profile, made in a simple way to

  from strips by cutting and

  spinning, and which has an inertia and a higher inertia module than the known profiles for a commitment

  of equivalent material, and therefore a price of

comes lower.

  An object of the invention is therefore to propose

  shaped rails of various dimensions for supporting

  carrying loads while being used in particular to

  storage racks of various products and products

  slacks. The profiled rail according to the invention is composed of

  essentially a single central core connecting two

  symmetrical sounds having a determined profile, the whole being

  made from the same sheet, the lips of which

  tremité are welded on the central core and on the same side of it.

  According to a main characteristic of the in-

  vention, on both sides of the vertical central core of

  this smooth, between it and the upper dishes and in-

  the strip is folded to form a box comprising two vertical parts followed by two inclined faces, one of the inclined sections extending the central core,

  and the other ending with a folded lip along the-

  the central soul on which it is welded, the central soul

  possibly being provided with a rib near

the end of the lips.

  According to a particular characteristic of the invention, the panels are inclined by an angle between between and 40 with respect to a horizontal plane represented by

  the upper and lower plates, this angle being preferably

approximately 37030.

  According to another characteristic of the invention,

  the ribs provided near each end of the

  introduce a transverse shift of the soul that is

  thus found substantially in the extension of the lips.

26 0 6 1 2 3

  Other special features and

  the advantages of the invention will emerge from the description

  which will follow from a nonlimiting example of realization

  Referring to the accompanying drawings, which show: Figure 1: a perspective view of a profiled rail according to the invention, Figure 2: a sectional view along II-II of the

figure 1.

  The profiled rail 1 shown in the drawings, is intended to be welded at each end to a vertical fastener 2 which will itself be attached to vertical uprights

  scale not shown and which is provided for this purpose pads 3.

  Smooth 1 is obtained from a strip, of a length corresponding to the desired length of smoothness,

  profile and welded according to the profile shown in Figure 2.

  This profile is essentially characterized by a central vertical core 10 connected to two caissons, one

  upper box llaet a lower box llb. Chaoue

  its he comprises a horizontal plane or flat portion 12, the portion 12a of the upper box being intended to receive the load and provided with a rib 18 rigidifying the profile. On both sides of the plate 12, the profile comprises two vertical parts 13 followed by two inclined faces 14. These sections are inclined at an angle> on a horizontal plane materialized by the plate 12, the angle o <being understood between 25 and 40, and advantageously being 37 30. One of the inclined faces comes in extension of the central core while the other end ends with a lip 15 which is folded along the central core 10 on which it is

  welded. The central core 10 is provided with a rib 16 to pro-

  close to each end of the lips 15, which introduces a transverse offset of the core 10 of length L towards them. As a result, the core 10 is substantially

in the extension of the lips.

  The center of gravity and the torsion center of this smooth are thus combined

  offset the central core 10 disposed on the vertical axis

  tical symmetry 17 boxes 11. Thanks to this symmetry

260 6 1 23

  perfect, compared to a vertical plane passing through the core 10, it avoids the deflection deflection (or spill) of the smooth

when she bears a load.

  The presence of this rib 16 over the entire length of the rail, both near the upper box and the lower box, gives the latter a very good rigidity in a plane perpendicular to the load plan materialized by the plate 12 The bar thus resists horizontal forces caused for example by the friction of a load. during his engagement or release on the support. The rib 16 also improves the rigidity of the core 10 by reducing the local deformations that could have been caused by heating at the welding points

lips.

  The shape of the upper and lower boxes according to which the plate 12 is followed by a vertical part 13

  then of an inclined part 14, confers on the whole a rigidity

  increased compared to caissons that would not be

  killed only a horizontal part followed directly by two inclined faces, that is to say having a triangular profile. Indeed, as seen in the lower part of Figure 2, in the described structure, there is a first fold of 900 between the flat 12 and the vertical portion 13 and a second fold B

  approximately 60 between this vertical part 13 and the

  This form of box is more rigid indeed than a box whose plate would be connected directly to the inclined pan by a single fold of 142030 totaling the first fold

of 90D and the second of 52.30.

  This arrangement makes it possible to obtain compared

  classic elements of earnings in the order of 30% of

  committed to profiles meeting the same needs

  care. The height L of the central core is sufficient so that the caissons which represent the main weight of material engaged are located at the maximum of the center of gravity, which increases the inertia and the inertia module

from the whole.

  The profiled rails of different heights are thus produced as a function of the loads to be supported and

  staves between each scale. For the rails of

  height, intended to support light loads, in which the height of the central core 10 is low

  compared to the height of the boxes, one can not

  align ribs 16 near each end of the lips 15, the latter being close to each other; the general structure of the rail nevertheless gives it

sufficient rigidity.

Claims (5)

  1.- profiled smooth for supporting loads including storage bins and obtained from a profiled strip to form a profile having at least one upper planar portion and a lower planar portion on either side of a core central vertical characterized in that, on both sides of the central core   vertical line (10) between the latter and the upper and lower   (12) the strip is folded to form a box (11) having two vertical portions (13) followed by two inclined faces (14), one of the inclined sections extending the central core, and the other ending with a lip (15) folded   along said central core on which it is welded.   2. Profiled smooth according to claim 1, characterized in that the central core (10) is provided with a   rib (16) near the end of the lips (15).   3.- profiled smooth according to claim 1, characterized in that the upper plate 12a is provided with a rib (18) stiffening the profile.   4.- profiled smooth according to claim 1, characterized in that the panels (14) are inclined on the horizontal plane materialized by the plate (12), an angle between 25 and 400.   5.- profiled smooth according to claim 2, characterized in that the ribs (16) provided near each end of the lips (5) introduce an offset   cross-section of the soul (10) which is thus in the along the lips (15).