Abstract:
A display unit for products has a mounting frame ( 10 ) with mounting profiles ( 12, 11; 14 ) disposed parallel and spaced apart from one another. Frame-shaped or box-shaped inserts ( 30 ) are fastened releasably to the mounting profiles. The inserts ( 30 ) have side walls ( 31 ) that form a rectangular frame, and the inserts are fastened releasably by their rear faces on the mounting profiles. Due to the fastening an electrical voltage is supplied simultaneously to the inserts. The inserts can be modules that are fastened individually to the mounting frame and each can be designed differently. The respective inserts are fastened releasably by their rear faces on the mounting profiles. Thus the display unit can be configured variably in a simple manner both in the case of conversions and also in the case of new constructions in sales premises.

Description:
BACKGROUND 
       [0001]    1. Field of the Invention 
         [0002]    The invention relates generally to the display of products, such as for example cosmetic articles or text and/or graphics information for advertising purposes in connection with any products/services and relates in particular to a display unit with a plurality of display modules that should be capable of variable configuration in a simple manner both in the case of conversion and also in the case of new constructions in sales premises. 
         [0003]    2. Description of the Related Art 
         [0004]    Display units of the aforementioned type for products are set up as part of sales counters, also referred to as displays, in sales premises such as for example supermarkets or chemist&#39;s shops and offer the possibility of displaying a specific product, for example a cosmetic product, to the customer. The finished system as part of a display is set up for example in a chemist&#39;s shop, department store, perfumery, etc. and displays products (for example cosmetic articles) for sale to the final consumer. The final product is available with different visual appearances according to customer requirements. 
         [0005]    Suppliers of cosmetic products often have their own display units in sales areas in which they display their products in a uniform manner. Display systems with modules are required as part of the displays, in order on the one hand to accommodate the products and on the other hand to display them. 
         [0006]    In the past, bases for display systems have been produced individually from metal, wood and plastic and generally are not customisable to customer requirements. Conversions of existing designs have not generally been possible, or have been very awkward. 
         [0007]    Especially for the display of products, attractively designed modules are sought which on the one hand can be produced cost-effectively and so as to be flexibly configurable and on the other hand are sufficiently robust. 
         [0008]    WO 2006067396 A1 and DE 202014103767 U1 disclose a display unit with a plurality of shelves arranged one above the other, for more promotionally effective display of products the shelves are provided with illumination devices. The electrical supply to these illumination devices takes place by means of the fastening of the shelves on a wall panel or a supporting column. 
         [0009]    DE 202012009052 U1 discloses a display unit with a plurality of panels on which products to be displayed are set out on the front face. The panels are releasably fastened to a further panel or a wall with the aid of a fastening frame or fastening elements. 
         [0010]    For the ordered display of products, variable sub-divisions in the shape of intersecting strips are generally used which are disposed on the upper face of shelves or the like, as disclosed for example in EP 0773727 B1, 
         [0011]    For more effective and more attractive display of products, especially in the field of cosmetic articles, display units have proved worthwhile which are provided with shelf plates made from a transparent material, such as for example transparent plastic, which enable a background lighting function for background lighting for the products to be displayed. In this case the shelf plates act as optical fibres from which the light for background lighting of the products is coupled out in a suitable manner. Such display units are disclosed for example in German Utility Model 202013104137 in the name of the applicant. 
       SUMMARY OF THE INVENTION 
       [0012]    The object of the present invention is to provide an improved display unit with a plurality of display modules, which are electrified or not electrified, so that the display unit should be capable of variable configuration in a simple manner both in the case of conversions and also in the case of new constructions in sales premises. 
         [0013]    A display unit according to the present invention serves for the display of products and/or from text and/or graphics information. The display unit comprises a mounting frame with a plurality of mounting profiles that are disposed parallel and spaced apart from one another. The mounting profiles advantageously are constructed as continuous profiles with suitable lengths that are spaced apart at regular intervals and are disposed parallel to one another. In particular the mounting profiles can be disposed so that they intersect horizontally and perpendicularly to form a plurality of mounting zones, the sizes of which are advantageously the same, but can also differ by an integral multiple from one another in one or two dimensions, and alternatively other differences are also possible. Plural frame-shaped or box-shaped inserts are fastened releasably to the mounting profiles, and each functions to display products and/or text and/or graphics information. The inserts each have a plurality of side walls, which altogether make a very stable and resilient rectangular frame possible. 
         [0014]    According to the invention the inserts can be regarded as modules that are fastened individually to the mounting frame and can each be differently designed. In this case the inserts in each case are fastened releasably by their rear faces on the mounting profiles. Thus the display unit can be configured variably in a simple manner both in the case of conversions and also in the case of new constructions in sales premises. 
         [0015]    All the inserts advantageously have the same basic dimensions, or they are divided in a modular manner by sizes, so that the size corresponds to a multiple or an integral fraction of the module size, so that the modules can be mounted, for example stacked and transported, in a simple manner and can be replaced easily by another one, for example having a different functionality. 
         [0016]    According to a preferred embodiment the inserts are connected directly to the mounting profiles by the rear faces of the side walls of the inserts, wherein the base surfaces of the modules advantageously correspond to the base surfaces of the mounting zones of the mounting frame or an integral multiple or a fraction thereof. Thus the inserts do not project, or project only insignificantly, beyond the zones of the mounting frame defined by the mounting profiles. Thus by the arrangement of the mounting profiles the later arrangement of the inserts can be defined in a simple manner, for example in a matrix arrangement in rows and columns, wherein the inserts themselves can always be fastened in the same way by simple connections to the mounting profiles, and overall this helps to reduce the time necessary for mounting. 
         [0017]    According to a further embodiment conductive tracks are disposed on at least several of the mounting profiles and may be configured as metal rails and/or plastic rails that face the rear face of the inserts and are directly accessible therefrom,. In this case the releasable fastening of the inserts to the mounting profiles advantageously is designed so that the inserts are supplied via the conductive tracks with a supply voltage, for example a low-volt d.c. voltage, when the inserts are fastened releasably to the mounting profiles. In other words: when the inserts are fastened to the mounting profiles an electrical power supply to the inserts is implemented automatically by means of the conductive tracks, so that expensive additional steps for electrification of the inserts can be omitted according to the invention. In particular lighting devices, such as LED strips or illumination means, and/or electrical equipment, such as display screens, music players and the like that are provided in the inserts, can be operated with the aid of the supply voltage. For this purpose, electrical cables or conductive tracks as well as connecting means, such as plugs or terminal blocks, can also be provided in the inserts, for example in the side walls of the inserts. 
         [0018]    In the case of a matrix arrangement of the mounting zones of the mounting frame, as stated above, it may be sufficient if the conductive tracks only extend along the horizontal or vertical mounting profiles. It may be sufficient if the conductive tracks are provided only on the respective second conductive track of the group of conductive tracks of one type (horizontal or vertical). 
         [0019]    According to a further embodiment contact pins are provided on the rear faces of the inserts and are pressed automatically against the conductive tracks when the inserts are fastened releasably to the mounting profiles. For this purpose the contact pins, in a loosened normal state, can project slightly beyond the plane that is spanned by the rear face or the frame of the inserts and, in a mounted state, by a restoring element, such as a spring or a sheet metal strip, are pressed against the associated conductive tracks. 
         [0020]    According to a further embodiment fastening elements that are designed for fastening of the rear end faces of the side walls of the inserts to the mounting profiles, are fastened on each of the front faces, so that the inserts do not project, or project only insignificantly, beyond the zones of the mounting frame defined by the mounting profiles. In this case the fastening elements have longitudinal grooves which extend in the longitudinal direction of the respective mounting profiles and in which the conductive tracks are disposed. The connection of the inserts to the mounting profiles preferably takes place through a positive locking or frictional connection within the longitudinal grooves or in the immediate vicinity. At the same time the electrical power supply to the inserts is ensured by the conductive tracks disposed in the longitudinal grooves. In this way according to the invention a very compact and space-saving mounting of a plurality of variably configurable display modules (inserts) on a mounting frame can be ensured. 
         [0021]    According to a preferred further embodiment the rear end faces of the side walls are in each case connected by positive locking to the fastening elements. In this case the positive locking is designed to prevent unintentional withdrawal of the display modules (inserts) vertically from the mounting frame. At the same time the display modules (inserts) can be positioned reliably in the plane defined by the mounting frame. The positive locking can be implemented by means of first positive-locking elements that are provided on the rear faces or rear end faces of the side walls of the inserts, and second positive-locking elements that are designed corresponding to the first elements and are provided directly on the mounting profiles or on fastening elements connected thereto. In this case the respective positive locking elements advantageously are designed in one piece with the respective insert of the associated side wall or with the mounting profile or the fastening element connected thereto, which can be achieved in a simple manner by plastic injection moulding processes. 
         [0022]    According to a further embodiment latching catches are provided in each case on the rear end faces of the side walls and are inserted into the longitudinal grooves of the fastening elements and elastically pretensioned against inclinations or openings of the longitudinal grooves when the inserts are releasably fastened to the mounting profiles. Alternatively, latching recesses are provided in each case on the rear end faces of the side walls and interengage in the latching catches that are provided in the longitudinal grooves of the fastening elements and are pretensioned elastically against the latching recesses when the inserts are fastened releasably to the mounting profiles. 
         [0023]    According to a further embodiment the fastening elements are in each case kept secured so as to be longitudinally movable on the mounting profiles. For this purpose for example the fastening elements can be designed as sliders or brackets around which the mounting profiles at least partially engage in each case and which are adjusted in the longitudinal direction of the mounting profiles and can be fastened in the suitable position by connecting means, such as for example screws or clips. In this way the basic configuration of the mounting frame and of zones defined by the mounting profiles can be variably predetermined in a simple manner. In this case at the same time the fastening elements can also serve as holders for holding the aforementioned conductive tracks on the mounting profiles. 
         [0024]    According to a further embodiment, the mounting profiles are constructed in each case as rectangular or square continuous hollow profiles with a cavity, and the mounting profiles are connected to the mounting frame by electrical connectors that are in each case inserted into the cavities of two mounting profiles that are connected to one another. It is advantageous that the geometry of the mounting frame can be predetermined very variably in a simple manner by simple connection of a few mounting profiles with standard lengths. In this case the mounting frame can be constructed at the time of mounting on site, thereby further reducing the mounting and transport costs. Thus, 90° plug connectors, T plug connectors or similar connectors can be used to produce a matrix arrangement of the zones of the mounting frame with a plurality of horizontal mounting profiles extending parallel to one another and a plurality of vertical mounting profiles extending perpendicular thereto and parallel to one another. However, if the plug connector predetermines other angles, any other geometry can be produced, in particular any angle of inclination of part-sections of the display unit, for example a rear wall or a lower section thereof 
         [0025]    According to a further embodiment at least some of the inserts have rear walls so as to be able to prevent products for display from falling out and thus the inserts are designed for retaining and/or holding products which are to be displayed. Liner bases advantageously can be inserted as required into the side walls or retaining projections provided there. 
         [0026]    According to a further embodiment the rear wall comprises a light-conducting plate that can be formed directly by the rear wall. Light from a LED strip can be coupled into the light-conducting plate for background lighting. The products received or held in the display module (insert) can be displayed in a more promotionally effective manner by the background lighting. Alternatively the background lighting serves for promotionally effective illumination of text and/or graphics information. For this purpose the front faces of at least some of the inserts can be covered by a transparent or opaque covering made, for example, from a transparent or opaque plate-like plastic. The covering may be designed to present text and/or graphics information. 
         [0027]    In a further embodiment the mounting frame is disposed on a ramp-like body, so that the mounting frame is fastened to lie obliquely. This enables the products standing farther back to be raised for the viewer, so that the viewer sees them better. 
         [0028]    In a preferred embodiment the mounting frame is formed like a ladder with horizontal and vertical mounting profiles. The box-shaped inserts may be disposed in the ladder zones. 
         [0029]    In this case the horizontal and vertical mounting profiles are preferably connected to one another by clamping, wherein the horizontal mounting profile is preferably made from plastic and extends in part so as to clamp around the vertical mounting profile. 
         [0030]    A display unit such as is disclosed here can be received on a mounting frame in a piece of display furniture or can be fastened on a wall panel. 
         [0031]    The invention is described hereafter by way of example and with reference to the appended drawings, which disclose further features, advantages and objects to be achieved. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0032]      FIG. 1  shows a display unit for products according to the present invention. 
           [0033]      FIG. 2  shows a mounting frame of the display unit according to  FIG. 1 , which is installed in a piece of display furniture. 
           [0034]      FIG. 3  shows the mounting frame of the display unit according to  FIG. 2  in a perspective partial side view, wherein a plurality of box-shaped inserts is fastened on the mounting frame. 
           [0035]      FIG. 4 a    shows a schematic sectional view of a mounting profile according to one embodiment. 
           [0036]      FIG. 4 b    shows a schematic sectional view of a mounting profile according to a further embodiment. 
           [0037]      FIG. 4 c    shows a schematic sectional view of a mounting profile according to a further embodiment. 
           [0038]      FIG. 4 d    shows a schematic view of the assembly of the mounting profiles to form a mounting frame. 
           [0039]      FIG. 5 a    shows a perspective partial view of the fastening of a box-shaped insert with background lighting to a zone of a mounting frame of a display unit for products according to the present invention. 
           [0040]      FIG. 5 b    shows a further example of a box-shaped insert. 
           [0041]      FIG. 6  shows a perspective partial view of the process of fastening a box-shaped insert to a mounting profile according to the present invention. 
           [0042]      FIG. 7  shows a partial view of a display unit for products according to a further embodiment. 
           [0043]      FIG. 8  shows a part of the mounting frame of the display unit according to  FIG. 7 . 
           [0044]      FIG. 9  shows a ramp on which a mounting frame can be disposed, in an intermediate state before the ramp is completely folded up. 
           [0045]      FIG. 10  shows the ramp according to  FIG. 9  on which a mounting frame is disposed, which is illustrated in a partially exploded form. 
           [0046]      FIG. 11  shows a box-shaped insert which has receptacles in the form of holes for lipsticks, in which the lipsticks are disposed. 
           [0047]      FIG. 12  shows a sectional view through the front region of the box-shaped insert, with a rotatably mounted cover which can be set at different angles. 
           [0048]      FIG. 13  shows an exploded view of a box-shaped insert. 
           [0049]      FIG. 14  shows a side view of the box-shaped insert with the contacts. 
           [0050]      FIG. 15  shows a mounting frame, with two vertical mounting profiles as supports and a series of horizontal mounting profiles as crosspieces. 
           [0051]      FIG. 16  shows an exploded view of  FIG. 15  with a view of a detail of a top region of a horizontal mounting profile which is clipped on. 
           [0052]      FIG. 17  shows a side view of the mounting profile of  FIG. 15  with a series of box-shaped inserts which have received corresponding products. 
       
    
    
       [0053]    In the drawings identical references designate identical elements or groups of elements. 
       DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0054]      FIG. 1  shows a display unit for products according to the present invention. The display unit comprises a plurality of box-shaped inserts  30  with a rectangular base surface that are disposed in a matrix arrangement and are inserted into the mounting frame, which is illustrated in  FIG. 2 , and is accommodated in a piece of display furniture  2  having a horizontally extending carcass  4  with a plurality of drawers, vertical side walls  5  and an upper advertising space  6  for presentation of text and/or graphics information. 
         [0055]      FIG. 2  shows the arrangement of the mounting frame  10  inside the piece of display furniture  2 . The mounting frame  10  is formed by a plurality of horizontal mounting profiles  12  and mounting profiles  13  extending perpendicular thereto and connected to one another by plug connectors  16 , as is explained in greater detail below with reference to  FIG. 4   d.  The mounting frame  10  is divided by the mounting profiles  11 ,  12  into a plurality of zones  13  of the same size, of which the height/width substantially corresponds to an integral multiple of the height/width of the inserts  30  that are to be fastened to the mounting frame  10 . Naturally the mounting profiles  11 ,  12  can also fix different sub-divisions of the mounting frame  10  section by section. 
         [0056]    According to  FIG. 2  only the upper section of the mounting frame  10  extends parallel to the rear wall  3  of the piece of display furniture  2 . The central and lower sections of the mounting frame  10  each extend at an acute angle to the plane of the upper section of the mounting frame  10 . The respective angle can be set in a simple manner by means of the plug connector  16 , by means of which the mounting profiles  11 ,  12  in each case are connected to one another, as is explained in greater detail with reference to  FIG. 4   d.    
         [0057]      FIG. 3  shows the mounting frame of the display unit according to  FIG. 2  in a perspective partial side view. In this case not all of the inserts  30  are fastened to the mounting frame. The insert designated by the reference numeral  30  is moved closer to the mounting frame to be fastened thereto. According to  FIG. 3  the inserts  30  are box-shaped, with a rear wall  32  and four side walls  31 . A plurality of retaining projections  33 , into which at least one liner base  34  can be inserted for supporting products to be displayed, are provided in a grid arrangement on the inner faces of the vertical side walls  31 . 
         [0058]    Further inserts can also be designed in the form of a frame, that is to say without a rear wall, to enable a free view through for instance onto the rear wall  3  of the piece of display furniture  2  located behind it (cf.  FIG. 2 ), a wall or an advertisement. 
         [0059]      FIG. 4 a    shows further details of the mounting profile  14 , which, according to this embodiment, has a square cross-section and has a cavity  15  at least in the end regions and preferably over the entire length thereof. Such a mounting profile  14  can be cut off with a suitable length from extruded continuous profiles of plastic and/or metal. The front face of the mounting profile  14  faces the associated insert (not shown) and has a conductive track holder  17  that serves as a fastening element for fastening of an insert  30  to the mounting profile  14  and either is fastened to the mounting profile  14  or is constructed in one piece therewith. According to  FIG. 4 a    two electrically conductive tracks  19  are disposed so as to be insulated from one another in the longitudinal grooves  22  of the conductive track holder  17 . The conductive tracks  19  for contact pins  36  (cf.  FIG. 5 a    and  FIG. 5 b   ) of the associated insert  30  are directly accessible via the longitudinal grooves  22 . 
         [0060]    In the arrangement according to  FIG. 3  the conductive tracks can extend over the entire width and/or height of the mounting frame  10 , or over the width and/or height of a sub-section thereof, which is to be supplied with an electrical voltage. 
         [0061]    According to the invention the releasable fastening of the inserts  30  to the mounting profiles  14  is advantageously designed so that the inserts  30  are supplied automatically via the conductive tracks  19  with a supply voltage when the inserts  30  are fastened releasably to the mounting profiles  14 . The inserts  30  can be fastened to the mounting profiles  14  by basically any connection techniques, such as screw connections, hook and loop fastenings, releasable adhesive joints or any suitable positive locking or frictional connection techniques. 
         [0062]    Positive locking structures are provided particularly advantageously on the front face of the mounting profile  14 , which faces the insert (not shown). These structures can either be formed directly on the front face of the mounting profile  14  or directly in the conductive track holder  17 , as shown in  FIG. 4   a.  More precisely the longitudinal grooves  22  of the conductive track holder  17  are in the form of an inverted V according to  FIG. 4 a    and have obliquely upwardly inclined slopes  21  which converge upwards towards one another. Corresponding latching catches, which are formed on the rear face of the associated insert, in particular on the rear end faces of the side walls thereof, engage in the longitudinal grooves  22 . 
         [0063]    An example of such a latching catch  43  is shown in  FIG. 6 . According to  FIG. 6  the latching catches  43  are formed in one piece with the side wall  31  of the respective insert  30  and project in the extension thereof from the rear face of the insert  30 . Each latching catch  43  has a slope  44 . During the insertion of the latching catch  43  into a longitudinal groove  22  of the mounting profile  14  the slope  44  bears fully or in part against the slope  21  of the longitudinal groove  22  to secure the insert  30  on the associated mounting profile against removal perpendicular to the mounting profile. 
         [0064]    More precisely, the front end of the slope  44  of the latching catch  43  initially contacts the front end of the projection  20  of the conductive track holder  17  during the insertion of the latching catch  43  into a longitudinal groove  22  of the mounting profile  14 . As the latching catch  43  is introduced further into the longitudinal groove  22 , the slope  44  of the latching catch  43  slides along the front end of the projection  20 , until finally the slope  44  of the latching catch  43  bears fully or in part against the slope  21  of the longitudinal groove  22 . The upper face of the latching catch  43  also is chamfered to simplify the removal of the latching catch  43  from the longitudinal groove  22 . 
         [0065]    It can be seen from  FIG. 6  that the conductive track holder  17  does not need to extend over the entire length of the mounting profile  14 , but that it may be sufficient if it is only disposed thereon in part, co-ordinated with the respective grid of the mounting frame. For even greater variability it may be advantageous in this case if the conductive track holder  17  can be moved along the respective mounting profile  14  and can finally be fastened at a suitable position, co-ordinated with the respective grid of the mounting frame to be formed, for example by means of suitable screw, plug or clip connections. 
         [0066]      FIG. 4 b    shows a variant of a mounting profile. According to  FIG. 4 b    the longitudinal grooves  22  are not wedge-shaped but in the form of an inverted T shape, with rectangular cutouts  23  above the conductive tracks  19  in which latching catches corresponding thereto can engage. 
         [0067]      FIG. 4 c    shows a further variant of a mounting profile, according to which the conductive track holder  17  engages like a clamp around the mounting profile  14  by means of projections  24  at the opposite end. The frictional grip between the conductive track holder  17  and the mounting profile  14  can be sufficiently dimensioned for reliable positioning of the insert on the mounting profile  14  and at the same time, when a minimum force is exceeded, can ensure the above-mentioned movability of the conductive track holder  17  along the mounting profile  14 . 
         [0068]      FIG. 4 d    shows how mounting profiles  14  constructed as hollow profiles can be fit together by plug connectors  16   a - 16   d  that are inserted respectively into the cavities  15  of two mounting profiles  14  that are connected to one another to form a mounting frame with variable geometry. The geometry of the mounting frame can be predetermined in particular in a simple but reliable manner by the angle of the plug connectors  16   a - 16   d  used in each case. 
         [0069]      FIG. 5 a    shows a perspective partial view of the fastening of a box-shaped insert with background lighting to a zone of a mounting frame as previously described. When the latching catches  43  of the insert  30  are inserted into the longitudinal grooves  22  of the conductive track holders  17  (cf.  FIG. 6 ), the electrical contact pins  36  of the insert  30  press against the respective conductive tracks  19 , so that electrical power is supplied for background lighting by coupling in of the light from a LED strips  37  with a plurality of LEDs  38  into the end face of the light-conducting plate  35 . The light-conducting plate  35  can simultaneously form the rear wall of the insert  30 . By means of the background lighting, articles disposed on the side wall  31  of the insert or on liner bases or the like can be illuminated in a promotionally effective manner or text and/or graphics information can be back-lit. For this purpose the front face of the insert  30  can also be covered by a transparent or opaque covering  40 , on which the text and/or graphics information to be presented is provided in the known manner, as illustrated in  FIG. 5   b.  This text and/or graphics information can also be inserted into a receptacle  42  of the covering  40 . According to  FIG. 5 b    the covering  40  is fastened to the insert  30  by insertion of projections  41  formed thereon into cutouts  39  in the side wall  31  of the insert  30 . 
         [0070]    The aforementioned electrical power supply to the insert can also serve for electrical power supply to any other illumination means or illumination devices or electrical equipment, for example display screens or music players, which are fastened in or on the insert. 
         [0071]    As shown in  FIG. 5   a,  holes  19   a  are provided in the conductive tracks  19 . When the insert  30  is fastened to the mounting profiles  14 , the contact pins  36  can also engage by positive locking in these holes  19   a  to produce the electrical contact. In this connection the holes  19   a  can be designed in the required pattern of the inserts  30  on the conductive tracks  19 . The holes  19   a  can also serve for connection of two conductive tracks  19 , for example by screwing. 
         [0072]      FIG. 7  shows a partial view of a display unit for products according to a further embodiment. According to  FIG. 7 , a tiered support profile  7  with a plurality of levels and a front edge  8  projecting perpendicularly is disposed on a carcass  4  with a plurality of drawers of a sales stand  2 . Further shelves  9  can be fastened in the usual way to the rear wall  3  of the sales stand  2 . 
         [0073]    An inlay rail  7   a,  on which the lower end of a mounting frame  10  is supported is received in the lowest level of the support profile  7 . Inserts  30  are suspended or inserted in the mounting frame in the manner described above. The inserts  30  are supplied with an electric voltage by means of the conductive tracks  19  in the manner described above. The upper end of the mounting frame  10  is connected to a supporting strut  29  by means of which the mounting frame  10  also is supported on the uppermost level of the support profile  7  and on the rear face  3  of the sales stand  2 .  FIG. 8  shows an enlarged detail of this mounting frame  10  in the form of a ladder. 
         [0074]    Instead of supporting the mounting frame  10  by means of the supporting strut  29  on the uppermost level of the support profile  7  and on the rear face  3  of the sales stand  2 , it is also possible to provide catches on the rear faces of the vertical mounting profiles by means of which the mounting frame can be suspended directly in the front edges  8  of the shelves  9 . In this way an existing sales stand  2  can be converted quickly and variably, namely by partial or complete covering by a display system consisting of a plurality of inserts  30  which are disposed in a regular arrangement by attachment or fastening on a mounting frame  10  and can be supplied automatically with a supply voltage by means of the mounting frame  10 . 
         [0075]    As can be seen readily by the person skilled in the art when studying the above description, the display system can be provided cost-effectively and attractively and can be adapted very variably to individual customer requirements. Products or text and/or graphics information can be presented in a very promotionally effective manner by the electrification of the display modules (inserts). The described display system is suitable in particular for displaying cosmetic articles with the display modules (inserts) made from plastic and using lighting effects, in particular background lighting, in at least some of the display modules (inserts). However, the display system according to the present invention can also be used correspondingly for display of any other products, for example consumer items or electronics. 
         [0076]    In a further embodiment the carcass  4  is disposed as a collapsible ramp. A ladder structure  10  can then be fastened on this ramp, as can be seen in  FIG. 10 . In this case the ramp is constructed in a range from 20-80°, preferably 30-60°. Naturally, the carcass  4  can also be of solid construction and not collapsible, but this leads to a greater volume during transport. On the upper edge of the slopes the carcass  4  has openings  45  in which the horizontally extending mounting profiles of the ladder structure or of the mounting frame  10  are engaged or latched. In this way the mounting frame is prevented from sliding on the ramp-like slope. 
         [0077]      FIG. 10  shows the mounting frame  10  which is placed onto the carcass  4 , wherein the mounting frame has vertical mounting profiles  11  and horizontal mounting profiles  12  which are connected to one another by lugs  46  which extend into the profile. Because the mounting frame is disposed on the rhomboid carcass  4  a display surface is produced which rises towards the rear. 
         [0078]      FIG. 11  shows a box-shaped insert which has receptacles in the form of holes for lipsticks, in which the lipsticks are disposed. Such a box-shaped insert can be disposed on a mounting frame which has a ladder structure, such as is illustrated for example in  FIG. 10 . A plurality of such box-shaped inserts, even if they are of different sizes, can then be disposed on such a ladder structure. As can be seen from  FIG. 11 , the box-shaped insert has a front region  47  in which information describing the product can be placed, and which is specially lit, and a rear region  48  in which the product described at the front is arranged. 
         [0079]      FIG. 12  shows the front region  47  in detail, which has a rotatable cover  49  which can be set according to the inclination of the box-shaped insert in order thus to offer the viewer an optimal viewing angle. The rotatable cover  49  has a receiving slot  50  into which a piece of paper describing the product can be laid. 
         [0080]      FIG. 13  shows an exploded view of the box-shaped insert, with a cover plate  51 , with a holding region  52  in which the products can be placed, and also with a front region  47  which is formed by the rotatable cover and corresponding holders, in which corresponding lenses/transparent discs  53  and  54  are formed, so that the light of the LEDs which are disposed in the base region can be guided appropriately into the front region. Furthermore an insert  30  with corresponding side walls and a base plate or a light-conducting panel  35  is provided. 
         [0081]      FIG. 14  shows in a side view the contacts which are usually disposed diagonally in opposite corners of the box-shaped insert and which come into contact with the mounting profiles. The pin-like contacts are usually provided with springs, so that they press onto the mounting profiles and produce a contact. 
         [0082]      FIG. 15  shows a ladder-like mounting frame  10  with vertical mounting profiles  11  and horizontal mounting profiles  12 . The horizontal mounting profiles are preferably made from plastic and have, as  FIG. 16  shows, clamping regions  55  which clamp around the vertical mounting profile and thus lock it. For this purpose two clamping elements engage from above and below around the vertical profiled section and allow it to engage behind corresponding lugs. In addition a lug  56  is also provided which extends into a hole  57  so that sliding of the horizontal mounting profile on the vertical mounting profile can be prevented. These holes can be formed in fixed grid patterns. Furthermore the horizontal mounting profiles also have magnets  58  which form a connection with the box-shaped inserts, so that the inserts cannot be easily removed from the mounting frame, but are supported stably and firmly therein.  FIG. 17  shows a side view of the mounting frame  10  of  FIGS. 15 and 16 , wherein a plurality of box-shaped inserts, which in turn hold products, are introduced into these mounting frames. 
         [0083]    Current can be conducted in vertical mounting profiles, since these are connected by vertical mounting profiles made from plastic and can have different polarities. The box-shaped inserts can have pins, which in each case come into contact with the vertical profiles made from metal, in order to receive voltage so that the LEDs disposed in the box-shaped inserts are supplied with voltage. 
       LIST OF REFERENCE NUMERALS 
       [0000]    
       
           1  product display system 
           2  piece of display furniture 
           3  rear wall 
           4  carcass 
           5  side wall 
           6  upper advertising space 
           7  tiered support profile 
           7   a  inlay rail 
           8  front edge 
           9  shelf 
           10  mounting frame 
           11  vertical mounting profile 
           12  horizontal mounting profile 
           13  zone 
           14  mounting profile 
           15  hollow space 
           16   a  plug connector 
           16   b  plug connector 
           16   c  cross plug connector 
           16   d  angle plug connector 
           17  conductive track holder 
           18  base 
           19  conductive track 
           19   a  hole 
           20  projection 
           21  slope 
           22  longitudinal groove 
           23  cutout 
           24  projection 
           29  supporting strut 
           30  insert 
           31  side wall 
           32  rear wall 
           33  retaining projection 
           34  liner base 
           35  light-conducting plate 
           36  electrical contact pin 
           37  LED strips 
           38  LED 
           39  cutout 
           40  front cover 
           41  projection 
           42  receptacle 
           43  latching catch 
           44  slope 
           45  openings/cutouts 
           46  lug 
           47  front region 
           48  rear region 
           49  rotatable cover 
           50  receiving slot 
           51  cover plate 
           52  retaining zone 
           53 ,  54  lenses 
           55  clamping region 
           56  lug 
           57  hole 
           58  magnet