OBJECT OF THE INVENTION
[0001] The object of the present invention is an automatically unfolding advertising support
               for totem or an advertising unit.
 
            [0002] The support that is the object of the invention is made of a sheet of stamped and
               cut cardboard, duly attached to an advertising sheet bearing the information to be
               shown.
 
            [0003] The support is characterised by its dual purpose: on the one hand it acts as a support
               for the advertising unit, also known as a totem, and on the other it has the special
               feature of its automatic deployment through the action of a deforming force exerted
               on the unit made up of the sheet and the support that is the object of the invention
               - a deformation that is aided by the action of elastic means with which the advertising
               support in question is provided.
 
            [0004] The present invention therefore lies in the area of unfolding advertising supports
               which are provided with elastic means to assist their deployment.
 
            BACKGROUND OF THE INVENTION
[0005] To date there are large numbers of unfolding advertising supports provided with elastic
               means to assist their deployment, such as the support which is shown in patent 
WO 2002095719.
 
            [0006] This advertising support presents some drawbacks which are set out to be remedied:
               on the one hand, the advertising support information is only shown on one side of
               the unit, i.e. it is not possible for the advertising support to be able to contain
               advertising on both sides without its installation becoming extraordinarily complicated.
 
            [0007] On the other hand, all the segments into which the support is divided have elastic
               means in order to assist the unfolding and subsequent deformation of the support in
               order to assure that the final form adopted allows the support to be stood upright
               with a certain degree of stability.
 
            [0008] It also happens that the supports obtained in this way cannot exceed certain dimensions
               for reasons of handlability, deformability and stability.
 
            [0009] Other advertising supports as those in patents 
WO 200178040 or patent 
US 6347772 are mere folding structures that take on stable prismatic forms but under no circumstance
               are they unfolded automatically on account of their being provided with elastic means.
 
            [0010] Other inventions, like that described in patent 
FR2210317, consist of a folding advertising support which has a deformable structure containing
               information on one of its sides, although it is necessary to make use of a wedge-shaped
               element whose bottom base is aligned with the bottom base of the advertising support,
               which endows the assembly with greater stability.
 
            [0011] It is therefore an aim of the present invention to overcome the foregoing disadvantages
               and thereby be able to obtain an unfolding unit with information on both sides, which
               should be simple to assemble, where the number of elastic means used is reduced as
               far as possible, and where no additional part at all is needed to achieve proper stability.
 
            DESCRIPTION OF THE INVENTION
[0012] The present automatically unfolding advertising support invention for a totem consists
               of a sheet of stamped and cut cardboard, which, when duly folded, assembled and stuck
               on an advertising sheet, permits the automatic deployment of the totem or advertising
               unit by means of a slight deformation, thanks to the fact that the advertising support
               is provided with elastic means.
 
            [0013] When unfolded, said advertising support formed from a sheet of cardboard is capable
               of acting as a support for the advertising unit in conjunction with the form adopted
               by the actual unit.
 
            [0014] Given the support function it has to perform, said advertising support is placed
               on the base of the unit, nothing else being required apart from the use of a single
               sheet. In those cases in which the size of the totem makes it possible to use two
               similar unfolding supports, one on the base and the other at the top, endowing the
               final assembly achieved with greater strength and stability.
 
            [0015] The stamped and cut cardboard sheet which acts as the base for executing the support
               that is the object of the invention is provided with folds defining side members which
               are glued to the sheet, with bases, folding supports actuated by elastic means, as
               well as a central fold.
 
            [0016] The sheet that acts as the base is symmetrical in relation to a horizontal axis is
               started by folding and sticking the central areas so as to form a central ridge. There
               are perforations executed in this central ridge connected in the direction of the
               outer edge by a cut. The elastic means that assist the unfolding of the unit are housed
               in these perforations.
 
            [0017] After folding the two halves making up the advertising sheet and leaving an overlap
               marked at one of its ends for the closing of one half of the sheet on the other, one
               of the side members of the stamped cardboard sheet is then glued.
 
            [0018] The interior is opened again to fit the elastics in the slots and perforations with
               which the sheet is specifically provided, and the cardboard sheet is then folded again
               along its axis so as to stick the other side member to the other half of the sheet.
 
            [0019] Lastly, we stick the overlap that we had originally left at one of the sides of the
               sheet containing the advertising.
 
            [0020] To deploy the advertising support or totem, we proceed to place it horizontal by
               applying a deformation force on one of its sides, which makes the sheet adopt an ellipsoidal
               or oblong shape and which, by effect of the elastic means, causes some supports or
               legs that are formed with part of the stamped cardboard sheet to be unfolded.
 
            [0021] Together with the actual oblong shape adopted by the final assembly, these supports
               ensure that the whole unit or totem has sufficient stability.
 
            DESCRIPTION OF THE DRAWINGS
[0022] To supplement the description that will be given below and to make it easier to appreciate
               its features, the present descriptive report is accompanied by a set of drawings in
               whose figures the most significant details of the invention are represented for informative
               but never restrictive purposes.
 
            [0023] Figure 1 shows in simplified form an advertising totem in which two advertising supports
               are used, one placed on the base and the other at the top, which will only be used
               when the dimensions of the end unit so require due to stability and strength.
 
            [0024] Figure 2 shows the stamped sheet of cardboard which is used for forming the automatically
               unfolding advertising support that is the object of the invention.
 
            [0025] Figure 3 shows the above sheet where the central portion has been glued to obtain
               the central ridge where the ends of the elastic means are housed.
 
            [0026] Figure 4 shows the sheet housed inside the outer advertising sheet which has taken
               on the form of a totem. In this figure we observe the support form adopted by the
               sheet, but the support and totem are represented upside down. They are represented
               in this way for clearer understanding and viewing of the support formed from the sheet.
               The sheet adopts this form due to the effect of the deformation exerted on the unit
               on one of its sides when it was glued and the subsequent automatic unfolding due to
               the action of the elastic means.
 
            PREFERRED EMBODIMENT OF THE INVENTION
[0027] In the light of the figures we now go on to describe a mode of preferred embodiment
               of the invention proposed.
 
            [0028] In figure 1, we observe an unfolded totem or advertising unit which is made up of
               an advertising sheet (14) which enables advertising to be placed over the whole of
               its surface area through having the means of deployment inside the space defined by
               the advertising sheet (14).
 
            [0029] In this figure it may be observed that in the inner space defined by the advertising
               sheet there is an unfolded support at its base and at the top.
 
            [0030] Each one of the support elements (1) is the object of the invention. The number and
               arrangement of the unfolding supports (1) depends on the size and strength and stability
               requirements of the totem or end unit, although at least one is used at the base of
               the unit or totem.
 
            [0031] Each one of the folding supports (1) shown in figure 1 is made from a stamped and
               cut sheet of cardboard (2) which is provided with a series of folds.
 
            [0032] On said sheet (2) of cardboard, which is symmetrical in relation to a horizontal
               axis, as may be observed, the sheet has two side members (3) which are the ones that
               will be stuck to each of the inner faces of the advertising sheet (14).
 
            [0033] In addition, said sheet (2) of cardboard has a central area (4), which forms a central
               fold when one is stuck on the other in view of their symmetry. It has an area that
               defines bases (5) at the sides of which there are areas (6) which will act as supports.
               In turn, from these supports (6) there emerge other extensions which are reinforcements
               (7) for the supports (6).
 
            [0034] In figure 3 it may be observed that the central portion is stuck to define a central
               fold (4) in which a series of perforations (8) - to be specific four - are made, said
               perforations (8) being connected to the upper edge of the central fold with a cut
               (9). A noteworthy feature is the folding lines (10) between the areas defining the
               bases (5) and the future legs or supports (6).
 
            [0035] Furthermore, we observe that the areas defining the bases (5) at their intersection
               with the side members (3) have a curved folding line (11) provided with a cut (12)
               in the middle. Said curved folding line is the one that will facilitate an ellipsoidal-
               or oblong-shaped end configuration of the totem before deploying the legs or supports
               (6) .
 
            [0036] In figure 4, which, as we have mentioned, the support and advertising sheet unit
               is represented upside down for clearer viewing of the different parts, we observe
               the sheet (2) of cardboard with the side members (3) stuck to the advertising sheet
               (14), after the drawing of the form to be adopted finally, in which it should be kept
               by the action of the elastic means (13), which are what will force the units that
               act as props or supports (6) to be folded up (in fact they will appear folded downwards,
               as we have represented an under view of the support unit and advertising sheet). Said
               props or supports (6) are folded by action of elastic means (13) along the folding
               line (10).
 
            [0037] In order to recover the flat form that the advertising unit had prior to being unfolded,
               we only have to swing the props or supports (6) on the folding lines (10) so that
               they are perfectly flat and coplanar with the bases (5), proceeding to flatten the
               faces of the advertising sheet (14) and leave the whole assembly absolutely flat.
               This flat assembly may be folded. This facilitates its handling and storage, so that
               it may be deployed later somewhere else.
 
            [0038] The essential nature of this invention is not altered by variations in materials,
               shape, size and arrangement of the component elements, described for non-restrictive
               purposes but sufficing for it to be reproduced by an expert.
 
          
         
            
            1. Automatically unfolding advertising support for a totem from amongst advertising supports
               that are unfolded by the action of elastic means, characterised in that the advertising support is formed from a stamped and cut sheet of cardboard (2) which
               is symmetrical in relation to a horizontal axis, is provided with two side members
               (3) which are what are going to be stuck to each of the inner faces of the advertising
               sheet (14), besides having a central area (4) ; when stuck on each other, they form
               a central ridge on account of their symmetry, while also presenting an area that defines
               bases (5) at the sides of which there are areas (6) which will act as props or supports,
               and, in turn, other extensions emerge from these supports (6) which are reinforcements
               (7) for the supports (6).
 
            2. Automatically unfolding advertising support for a totem, according to claim 1, characterised in that in the central fold (4) there are four perforations (8) that are connected to the
               upper edge of the fold by means of cuts (9) used for housing elastic means (13) which
               are what causes the props or supports (6) to swivel in respect of the bases (5), pivoting
               along the folding lines (10) so that they form the seats or supports of the end unit,
               once pressure has been exerted on a side member of the sheet, and they permit the
               action of the elastic means (13).
 
            3. Automatically unfolding advertising support for a totem, according to claim 1, characterised in that the intersection between the side members (3) and the bases (5) takes place by means
               of a curved folding line (11) which assists the end unit in the adoption of an oblong
               form, said curved folding line (11) presenting a cut (12) in its central portion.