Electronic indicator for fastening to shelf rails

Abstract

-Display and a housing or housing shell in which the display is housed; a display device reinforcing structure configured to reinforce the display device against the action of external forces; The display device, in particular a product information display device and / or a price information display device, is electronic (FIG. 2).

Description

[Technical field]

[0001] The present invention relates to an electronic display device and a shelf rail to which the electronic display device can be secured. [Background technology]

[0002] Such an electronic display device (hereinafter referred to as ESL) and such a shelf rail are known, for example, from PCT / EP2014 / 053376.

[0003] In practice, displays have been found to be prone to breakage or cracking when used improperly. Breakage occurs especially in the case of ESLs where the dimensions of the display protrude beyond the dimensions of the fixed structure (provided for fastening to the shelf rail) at the rear of the housing. In many cases, such breakage of the display is caused by the carelessness of a customer in a store, where the customer's shopping cart accidentally hits the ESL fixed to the shelf rail, or where the product hits the ESL when removing the product. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] PCT / EP2014 / 053376 (International Publication No. 2015124197) Summary of the Invention [Problem to be solved by the invention]

[0005] It is therefore an object of the present invention to provide an improved electronic display and an improved shelf rail such that the above mentioned problems are avoided. [Means for solving the problem]

[0006] This problem is solved by an electronic display device according to claim 1. The subject of the invention is therefore an electronic display device, in particular a product information display device and / or a price information display device, which has a display, a housing or housing shell in which the display is accommodated and a display device reinforcement structure which is configured to reinforce the display device against the action of external forces.

[0007] Furthermore, this problem is solved by a shelf rail according to claim 14. The subject of the invention is therefore a shelf rail for accommodating at least one electronic display device, in particular a product information display device and / or a price information display device, which comprises a display and a housing or housing shell in which the display is accommodated, which housing or housing shell has a fastening structure on its rear housing side surrounding the rear side of the display, which fastening structure is formed in such a way that the display device can be fastened to the shelf rail. In this case, the shelf rail has a first clamping element extending along the shelf rail and a second clamping element extending approximately parallel to the first clamping element, both clamping elements being configured for a clamping connection with the fastening structure of the display device. In this case, one of the clamping elements is formed in such a way that it forms a shelf rail reinforcing structure. In this case, the shelf rail reinforcement structure reinforces the housing or housing shell of a display device that is intentionally fitted into the shelf rail at the rear surface of the housing of the display device adjacent the fixing structure, and in particular almost all the way to the edge of the rear surface of the housing.

[0008] Such electronic display devices generally have a display configured as an energy-saving electrophoretic external display (EPD for short), also known under the term "electronic paper display". The display is held in the housing by a fixing element that positions the display in its target position within the housing of the display device. Furthermore, the housing generally accommodates an electronic device that controls the display, such that product or price information about a product is displayed on the display, which is transmitted to the electronic device during wireless communication from an external control device, for example an access point. The access point is generally connected to a digital enterprise resource planning system or a server of the digital enterprise resource planning system, from which it receives said information.

[0009] The configuration of the invention has the advantage that, in addition to the housing or housing shell and the fixing structure, a display device reinforcing structure is provided which reinforces the display device against the action of external forces, so that the display device is hardly deformed and therefore almost completely prevented from being damaged by the action of external forces. The shelf rail functions in a similar way. It extends in the line of sight towards the display device fixed on the shelf rail and reinforces the display device at its rear side as an external reinforcing structure against the action of forces almost from the front side. Since clamping elements are formed on both sides (relative to the fixing structure of the display device), the external reinforcing structure is also present on both sides of the fixing structure. In many cases, the display devices are indeed fixed on the shelf rail so that they extend upwards almost at the same height as the shelf or are arranged upwards on a front-projecting edge of the shelf or shelf rail. This is mainly for aesthetic reasons. However, for the display device, this often means that the display device extends further below the fixing structure than above. That is, the external reinforcing structure provided by the shelf rail can also be adapted to this situation to support or reinforce substantially the entire rear face of the display device on both sides of the fixed structure, being longer on one side of the fixed structure and shorter on the other side of the fixed structure, thereby blocking the action of forces that occur eccentrically with respect to the fixed structure and that cause bending moments in the display device structure and the display.

[0010] Further highly preferred and alternative configurations of the invention are set out in the dependent claims and below.

[0011] According to an aspect of the invention, the display device reinforcement structure may have a front reinforcement element for gripping the display from the intended viewing surface of the display at least in a predetermined area. The front reinforcement element may be formed as a frame and may grip the display in the frame-like manner. The frame may be made of a non-deformable synthetic resin, such as acrylonitrile butadiene styrene copolymer synthetic resin (abbreviated as ABS). The frame may also be made of a composite material, such as carbon fiber reinforced synthetic resin.

[0012] To ensure the best visibility of the display, the frame may be provided without a viewing window etc. However, to improve reinforcement, it may be beneficial for the frame to have a viewing window.

[0013] In this regard, the viewing window can be made of a transparent synthetic resin, such as polymethylmethacrylate (PMMA), so that it has the highest impact resistance and scratch resistance, or it can be made of polycarbonate.

[0014] The frame and the viewing window may be manufactured from different materials or from the same material and may be provided as one piece or as separate pieces.

[0015] According to another aspect of the invention, the display reinforcement structure may have a rear reinforcement element that directly grips the display at the rear side thereof that is deflected away from the intended viewing surface.

[0016] The rear stiffening element can be formed, for example, in the form of a rib. Preferably, it is formed as a plate and is integrally joined to the rear face of the display, in particular glued or laminated thereto. This effectively "increases" the cross section of the display, i.e. it becomes thicker and the moment of resistance increases. This reinforces the display itself.

[0017] The plate may be constructed as a multi-layer structure, preferably as a sandwich structure. The plate may be of various synthetic resins, the layers of which are bonded to one another in a two-dimensional and / or three-dimensional structure.

[0018] According to another aspect of the invention, the display device reinforcement structure may have a space-filling reinforcement element reinforcing and filling at least a certain area of ​​the interior space of the housing or housing shell, particularly behind the display. In known display devices, the interior space area of ​​the housing, which is generally hollow for reasons of saving material, can be advantageously reserved for the present invention and used for reinforcement purposes. This structure has therefore proven to be particularly advantageous, since in modern electronic display devices, the displays tend to be larger. However, the required space for the battery and the electronic devices, which must be provided if necessary, does not match the dimensions of the display, so that the interior space of the housing behind the display increases. Without the space-filling reinforcement element, such that damage to the display can be reliably avoided, the housing of a conventional display device cannot withstand the action of external forces. Reliable avoidance of damage to the display can be achieved by using a space-filling reinforcement element in the space.

[0019] Due to the space-filling extent, here too variations that save as much material as possible can be beneficial. Thus, the space-filling reinforcing elements in question are selected from the groups indicated below, namely: -Honeycomb-shaped spatial structures, in particular honeycomb-shaped spatial structures; -ribbed spatial structure, -Wavy spatial structure, -Columnar spatial structures, -Spiral spatial structure, The spatial structure may be composed of at least one of the spatial structures.

[0020] The structure is in particular an elongated base member, the cross section of which may vary with the height of the structure, so that it may be narrower in one direction so that it can be more easily manufactured by injection molding.

[0021] A rib-like spatial structure is a structure in which several material webs extend, for example, linearly or curvedly. The material webs may extend parallel to one another. The structure may consist of several material webs formed on all or some of its surfaces. The material webs may cross one another so that the spaces between the material webs that are free of material form rectangular columns. However, the material webs do not have to extend linearly, but rather other extensions are also possible. The material webs may therefore be cylindrical or spiral. The material webs may also cross one another. However, tape-like spatial structures are not possible. The space-filling reinforcing element may therefore be constituted, for example, by several columns. The columns may have a curved, preferably circular or angular cross section. The columns may be without contact with one another or may have several intersections. However, honeycomb structures, especially beehive structures, have been found to be particularly advantageous, especially when the hollow space of the structure extends between the inside of a housing or housing shell and the rear face of the display or display (possibly covered by a rear reinforcement element). A number of different spatial structures may be combined.

[0022] It has proven to be particularly advantageous if at least a certain region of the space-filling reinforcing element is arranged behind the display, in particular adjacent to an electronic device or electronic device module arranged behind the display, and supports the display towards the housing at its rear side. The space-filling reinforcing element reinforces the housing at a location that is the hollow space behind the display. Thus, forces acting on the display or on at least one layer protecting the display from the outside, such as a viewing window, an anti-scratch film, etc., from the outside can be absorbed without warping of the display, which would cause damage to the display. In this case, the display is supported mainly at its rear side in order to interrupt normal forces on the display. However, the space-filling reinforcing element may also be placed or integrated into the housing or housing shell, such that when acting on the display device, it reinforces against bending or other forces that would cause deformation of the display, which would cause damage. For this reason, the space-filling reinforcement element must be incorporated into the housing in such a way that it avoids the dangerous bending of the housing that would otherwise be expected under the action of forces on the housing, which would eventually cause the housing to bend dangerously and thus destroy the display, and therefore must cooperate with, for example, walls arranged behind the display, side walls, and a rear wall of the housing of the display device, so that the space-filling reinforcement element reinforces the internal space of the display device under the action of forces on the display device from the outside, such that said bending cannot occur at all or can only occur to an acceptably minimal extent.

[0023] Against this background, it has proven to be particularly advantageous if the space-filling reinforcement element is formed as a component of the housing or housing shell. This construction also makes it possible to configure the space-filling reinforcement element together with at least a part of the housing during work. This can be carried out, for example, in an injection molding process during the manufacture of the rear housing or housing shell. In this case, mainly the rear wall, the side walls, the internal fastening elements for the electronic device and the display are generated together with the space-filling reinforcement element in one work step. A one-piece construction is thus obtained with this housing part. As a result, forces directed from the outside towards the housing and towards the space-filling reinforcement element are optimally transmitted. The space-filling reinforcement element can be configured to optimally reinforce the housing or housing shell, particularly with low material costs.

[0024] In the case of such a monolithic structure, it may be advantageous when the remaining space or the space constituted by the space-filling reinforcing element is filled with a synthetic resin, such as for example an epoxy resin, in order to increase the reinforcing effect.

[0025] It can also be proposed that a space-filling reinforcing element that is not integrally constructed with a housing or housing shell is immersed in a hardenable synthetic resin, such as, for example, an epoxy resin, which is introduced into the space of the housing or housing shell to be filled, and after hardening of the synthetic resin, a bond between the space-filling reinforcing element and the housing or housing shell is formed that improves the reinforcement. Similarly, after immersion of the space-filling reinforcing element, the remaining space or the space formed by the space-filling reinforcing element can be molded or filled with said synthetic resin.

[0026] Also, for maximum reinforcement, the entire space-filling reinforcement element may be formed of the synthetic resin itself, which at least fills the space provided, so as to obtain the necessary reinforcement effect or, if necessary, to fill the space provided as completely as possible.

[0027] The housing also has a fastening structure on the housing rear side of the housing or housing shell surrounding the rear side of the display, the fastening structure being formed in such a way that the display device can be fastened to a shelf rail. The fastening structure can be formed, for example, flat on the housing rear side. However, the fastening structure preferably protrudes from the shelf rail, for example, to cooperate with the shelf rail in a rail-like and / or clamping manner. As a result, the fastening structure itself has a reinforcing effect. Thereby, it may be sufficient for the space-filling reinforcing element to essentially reinforce the area of ​​the housing that is positioned adjacent to the fastening structure and is therefore not reinforced by the fastening structure.

[0028] However, essentially, the fastening structure must be constructed in a non-hermetic or encapsulating manner. Thus, at least a part of the fastening structure can be formed as a battery compartment cover. In this case, the batteries used to power the electronic device or electronic device module and the display can be accommodated in the fastening structure. Thus, the fastening structure can be used three-fold, i.e. firstly to fasten the display device to the shelf rail, secondly to reinforce the housing in the area of ​​the fastening structure and thirdly to accommodate these batteries.

[0029] In connection with the shelf rail, according to another aspect of the invention, at least one of the clamping elements of the shelf rail has an operating extension, which is dimensioned in such a way that it protrudes from a housing edge of the housing or housing shell of the display device which is purposely fitted into the shelf rail. In this case, the clamping element with the operating extension is formed in such a way that the clamping connection of the display device with the fixed structure can be released when a force is applied to the operating extension. Preferably, the operating extension is formed along the entire shelf rail. The operating extension may be formed on both clamping elements. Particularly preferably, the operating extension is formed on the clamping element which forms the longer external reinforcement structure. If the corresponding clamping element is appropriately connected to the shelf rail, the advantage is obtained that a long lever arm for operation is formed, which allows the clamping action to be easily released.

[0030] According to another aspect, at least one of the clamping elements has a fixing element, preferably formed as a plastic element, particularly preferably configured as a plastic lane extruded onto the clamping element, which cooperates with the fixing structure of the display device to fix the position of the display device. This fixing element ensures that the display device does not slip sideways (during the application of force by a person or in the event of an unintentional collision of the display device with, for example, a shopping cart or a product) when clamping the fixing structure. That is to say, the position of the display device along the shelf rail is fixed by friction. In this case, when the clamping action is released (i.e. when the operating extension is operated), naturally any positioning of the display device along the shelf rail remains secured.

[0031] These and other aspects of the invention are illustrated by the figures described below.

[0032] The present invention will be described in detail again below based on the embodiments shown in the attached drawings. However, the present invention is not limited to the embodiments. In this case, the same components are marked with the same reference numerals in different drawings. [Brief description of the drawings]

[0033] [Figure 1] 1 shows a display device fixed to a shelf rail. [Diagram 2] 1 shows an exploded view of the display device. [Diagram 3] FIG. 13 is a lateral exploded view of the shelf rail adjacent the display device. [Figure 4] 1 shows detail of the lower end of the shelf rail. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0034] In FIG. 1 an electronic display device 2 (in technical terms called an Electronic Shelf Label (ESL) and denoted ESL 2 in the following) is shown, which is fixed to a shelf rail 1. A detail of the ESL 2 can be seen in FIG. 2 as an exploded view. The ESL 2 comprises a display 3, which is configured as an Electronic Paper Display (EPD) and therefore comprises an EPD controller (not shown) specific to this electronic paper display device. The display 3 is connected to an electronic device 5 of the ESL 2 via a flat cable 4, which performs wireless communication with an access point (not shown). Data relating to product information and / or price information is transmitted via said access point to the ESL 2 for visualization by the display 3. Details of the electronic configuration and the wireless communication or wireless protocols used here as well as the overall system are disclosed for example in PCT / EP2014 / 053376.

[0035] Furthermore, the ESL 2 has a rear housing shell 6 that surrounds the display 3 from its rear side. The rear housing shell 6 is manufactured from synthetic resin by injection molding. First, the electronic device 5 is inserted into the receiving area for the electronic device 5 provided in the housing shell 6, and the electronic device 5 is connected to the display 3 via the flat cable 4, and the display 3 is mounted in the housing shell 6 via the electronic device 5.

[0036] A fixing structure 7 is configured on the rear side of the housing shell 6 for fixing the ESL 2 to the shelf rail 1. The inside of the fixing structure 7 is configured as a battery housing for accommodating three batteries 8. The electronic device 5 contacts these fitted batteries 8 via a number of contact elements that are not visible in this perspective view. These batteries 8 can then supply power to all electronic components of the ESL 2. The battery housing configured by the fixing structure 7 is closed by a battery housing lid 9.

[0037] ESL2 has a display reinforcement structure configured for reinforcement as follows.

[0038] First, the display device reinforcing structure has a front reinforcing element 10 that can be configured by one of three external shapes shown overlapping one above the other in FIG. 2 for ease of understanding. That is, for example, the front reinforcing element 10 can be configured by an integral frame 10A that does not have a see-through window. Furthermore, the front reinforcing member 10 can be configured by an integral frame 10B that has a see-through window 13 (which is also transparent if necessary). Furthermore, the front reinforcing element 10 can be configured by a highly rigid integral frame 10C.

[0039] Furthermore, the display device reinforcing structure has as rear reinforcing element 11 a plate which is in a sandwich structure and which covers the entire rear surface of display 3 and is laminated or glued directly onto the rear surface of display 3 .

[0040] Furthermore, the display reinforcement structure comprises a space-filling reinforcement element 12 that is configured integrally with the housing shell 6, i.e. that is a component of the housing of the ESL 2. The space-filling reinforcement element 12 is configured in a honeycomb shape and fills the interior space of the housing shell 6 that is adjacent to the electronic device 5 or fixed structure 7 and below the display 3. The honeycomb structure is clearly visible in the enlarged portion of the space-filling reinforcement element 12.

[0041] In the following, reference is made to FIG. 3. Here, a cross section of the shelf rail 1 with the ESL 2 fitted therein can be seen. The shelf rail 1 has a first (upper) clamping element 15 and a second (lower) clamping element 16. The fixing structure 7 of the ESL 2 is clamped between these clamping elements. In this case, the first clamping element 15 engages in an upper groove 24 and the second clamping element 16 engages in a lower groove 25 (see FIG. 1 in this respect). These grooves 24 and 25 are formed between the plane of the rear wall of the housing shell 6 and another area of ​​the fixing structure 7 which is connected to this rear wall. It can be clearly seen in the enlarged part of the upper area, in which the fixing structure 7 of the ESL 2 and the first clamping element 15 cooperate in a clamping manner, that a synthetic resin lane 17 (if necessary rubber covered) is formed at the outermost end of the first clamping element 15 which is pressed against the fixing structure, thus preventing a lateral slippage of the ESL 2 in the shelf rail. A synthetic resin lane 17 (if necessary rubber covered) forms the fixing element of the shelf rail 1 .

[0042] Both the first (upper) clamping element 15 and the second (lower) clamping element 16 have portions that extend parallel to the rear face of the housing shell 6. These portions form (upper or lower) shelf rail reinforcement structures 18, which may contact the housing shell 6 and contribute to reinforcement of the ESL 2.

[0043] As can be seen in Figures 1 and 3, the shelf rail 1 has a groove 21 at its head side that is configured to grip or receive a label 22 made of paper and / or synthetic resin.

[0044] Furthermore, the shelf rail 1 has an operating extension 19 which can be manually operated and which, upon operation, releases the clamping action between the second clamping element 16 and the fixed structure 7 in the direction of arrow 20. For the intended operation, this operating extension 19 is positioned at a distance from the (lower) shelf rail reinforcement structure 18 which is substantially in close contact with the housing shell 6.

[0045] For this reason, in FIG. 4, which shows a part in the region of the second clamping element 16, a further contour is visualized, which allows even easier operation of the operating extension 19. Here too, the operation of the second clamping element 16 during operation in the direction of the arrow 20 can be seen diagrammatically. In this case, the protruding part of the second clamping element 16 on the shelf rail 1 is elastically deformed. For this reason, the (lower) shelf rail reinforcement structure 18 is configured or formed in such a way that, on the one hand, during operation of the operating extension 19, it moves the second clamping element 16 away from the first clamping element 15, i.e., releases said clamping, and, on the other hand, the pivoting movement of this operating extension 19 easily pushes the ESL 2 out of the shelf rail 1 in the direction of the operator. The ESL 2 is thus released (released) and tilted slightly forward (towards the operating hand) during operation of the operating extension 19. As a result, an easier removal of the ESL 2 is possible.

[0046] Finally, the assembly of the ESL 2 results in the assembly of the housing shell 6 with the respective front stiffening element 10A, 10B or 10C. The assembly can be carried out by a simple integral connection, by screwing, by gluing or by welding. This results in a hermetically sealed housing. If a front stiffening element 10A, i.e. a frame without a viewing window, is used, the display 3 itself forms a component of the housing in the area formed by the frame.

[0047] Finally, it is pointed out once again that the above diagrams are merely examples that may be modified in various ways by those skilled in the art without departing from the scope of the present invention. For the sake of clarity, it is also pointed out that the use of the uncountable noun "one" does not exclude that there may be a plurality of the relevant feature. The present application relates to the invention described in the claims, but may also include the following configurations as other aspects. 1. - a display (2), a housing or housing shell (6) in which the display is housed, - a display reinforcing structure configured to reinforce the display against the action of external forces; and an electronic display device (2), in particular a product information display device and / or a price information display device. 2. The display device reinforcement structure is a display device (2) as described in claim 1 having a front reinforcement element (10A, 10B, 10) that grips the display (2) from the intended display surface of the display (3) at least within a predetermined area. 3. The display device (2) according to item 2 above, wherein the front reinforcing element (10A, 10B, 10C) is formed as a frame and holds the display (3) in the frame-like shape. 4. 4. The display device (2) according to claim 3, wherein the frame has a viewing window (13; 14). 5. The display device reinforcement structure is a display device (2) described in any one of 1 to 4 above, which has a rear reinforcement element (3) that directly grips the display (3) at the rear surface of the display (3) warped from the intended display surface. 6. The display device (2) according to claim 5, wherein the rear reinforcement element is formed as a plate (11) and is integrally joined to the rear surface of the display (3), in particular laminated to this rear surface. 7. 7. The display device (2) according to claim 6, wherein the plate (11) is configured as a multi-layer structure, preferably as a sandwich structure. 8. The display device reinforcement structure is a display device (2) described in any one of 1 to 7 above, which has a space-filling reinforcement element that reinforces and fills at least a predetermined area of ​​the internal space of the housing or housing shell (6), particularly located behind the display (3). 9. The space-filling reinforcing elements (12) may be any of the following groups: -Honeycomb-shaped spatial structures, in particular honeycomb-shaped spatial structures; -ribbed spatial structure, -Wavy spatial structure, -Columnar spatial structures, -Spiral spatial structure, The display device (2) according to the above 8, which is constituted by at least one of the spatial structures. 10. The display device (2) described in any one of 8 to 9 above, wherein the space-filling reinforcing element (12) is positioned within at least a predetermined area behind the display (3), in particular adjacent to an electronic device (5) provided behind the display (3), and supports the display (3) on a rear surface of the display (3) facing the housing or housing shell (6). 11. 11. The display device (2) according to any one of the above 8 to 10, wherein the space-filling reinforcing element (12) is formed as a component of a housing or housing shell (6). 12. The display device (2) described in any one of 1 to 11 above, wherein the housing or housing shell (6) has a fixing structure (7) on the rear housing surface of the housing or housing shell (6) that surrounds the rear surface of the display (3), and the fixing structure (7) is formed so that the display device (2) can be fixed to a shelf rail (1). 13. 13. The display device (2) according to the above item 12, wherein at least a part of the fixed structure (7) is formed as a battery housing cover (9). 14. A shelf rail (1) for accommodating at least one electronic display device (2), in particular a product information display device and / or a price information display device, The display device (2) comprises a display (3) and a housing or housing shell (6) in which the display (3) is housed, the housing or housing shell (6) having a fixing structure (7) on a housing rear surface of the housing or housing shell (6) surrounding the rear surface of the display (3), the fixing structure (7) being formed so that the display device (2) can be fixed to the shelf rail (1); the shelf rail (1) has a first clamping element (15) extending along the shelf rail (1) and a second clamping element (16) extending substantially parallel to the first clamping element (15), and both clamping elements (15, 16) are configured to clamp and couple with a fixed structure (7) of the display device (2); One of the clamping elements (15, 16) is formed so as to form a shelf rail reinforcing structure which reinforces the housing or housing shell (6) of a display device (2) which is fitted as intended into the shelf rail (1) at the rear housing surface of the display device (2) adjacent to the fixing structure (7), in particular approximately up to the edge of the rear housing surface of the shelf rail (1). 15. at least one of the clamping elements (15, 16) has an operating extension (19) which is dimensioned so as to protrude from a housing edge of the housing or housing shell (6) of the display device (2) which is fitted in the shelf rail (1) as intended, The shelf rail (1) described in claim 14, wherein the clamping element (16) having an operating extension portion (19) is formed so that the clamping connection between the display device (2) and the fixed structure (7) can be released when force is applied to the operating extension portion (19). 16. A shelf rail (1) as described in any one of claims 14 to 15 above, wherein at least one of the clamping elements (15, 16) has a fixing element (17) which cooperates with a fixing structure (7) of the display device (2) to fix the position of the display device (2), preferably formed as a synthetic resin element, particularly preferably configured as a synthetic resin lane extruded onto the clamping element (15). [Explanation of symbols]

[0048] 1 Shelf rail 2. Electronic display device 3. Display 4 Flat Cable 5 Electronic equipment 6 Housing shell 7 Fixed structure 8 batteries 9 Battery compartment cover 10 Frontal reinforcement element 10A Integrated frame 10B Integrated frame 10C Integrated frame 11 Posterior reinforcement element 12 Space-filling reinforcement elements 13. See-through window 14. See-through window 15 First (upper) clamping element 16 Second (lower) clamping element 17 Synthetic resin lane, fixing element 18 Shelf rail reinforcement structure 19 Operation extension 20 Arrow 21 Groove 22 Label 24 Kamimizo 25 Lower groove

Claims

1. - a display (3), - a housing or housing shell (6) in which said display is housed; a display device reinforcing structure configured to reinforce the display device (2) against the action of external forces, said display device (2) being electronic or at least one of a product information display device and a price information display device, The display device reinforcing structure has a front reinforcing element (10A, 10B, 10C) that grips the display (3) from a display surface of the display (3) at least within a predetermined area, The display device reinforcing structure has a rear reinforcing element that directly grips the display (3) at a rear surface of the display (3) warped away from the display surface, The front reinforcement element (10A, 10B, 10C) and the rear reinforcement element grip the display (3), The housing or housing shell (6) has a fixing structure (7) on the rear housing surface of the housing or housing shell (6) that surrounds the rear surface of the display (3), and the fixing structure (7) is formed so that the display device (2) can be fixed to a shelf rail (1).

2. 2. The display device (2) according to claim 1, wherein the front stiffening element (10A, 10B, 10C) is formed as a frame and holds the display (3).

3. 3. A display device (2) according to claim 2, wherein the frame has a viewing window (13; 14).

4. The display device (2) according to any one of claims 1 to 3, wherein the rear stiffening element is formed as a plate (11) and is integrally joined to the rear surface of the display (3) or laminated to this rear surface.

5. 5. A display device (2) according to claim 4, wherein the plate (11) is constructed as a multi-layer structure or as a sandwich structure.

6. The display device reinforcement structure (2) of any one of claims 1 to 5 has a space-filling reinforcement element that reinforces and fills at least a predetermined area of ​​the internal space of the housing or housing shell (6) located behind the display (3).

7. The space-filling reinforcing elements (12) are selected from the group indicated below, namely: - a honeycomb-like spatial structure, i.e. a honeycomb-like spatial structure, - ribbed spatial structures, - Wave-like spatial structures, - Pillar-shaped spatial structures, - Spiral spatial structure, 7. The display device (2) according to claim 6, which is constituted by at least one spatial structure of the above.

8. The display device (2) according to any one of claims 6 to 7, wherein the space-filling reinforcing element (12) is arranged in at least a predetermined area behind the display (3) or adjacent to an electronic device (5) provided behind the display (3) and supports the display (3) on a rear surface of the display (3) facing the housing or housing shell (6).

9. Display device (2) according to any one of claims 6 to 8, wherein the space-filling reinforcing element (12) is formed as a component of a housing or housing shell (6).

10. 10. The display device (2) according to claim 9, wherein at least a part of the fixing structure (7) is formed as a battery housing cover (9).

11. A shelf rail (1) for accommodating at least one electronic display device (2) according to any one of claims 1 to 10 or at least one of a product information display device and a price information display device, The display device (2) comprises a display (3) and a housing or housing shell (6) in which the display (3) is accommodated, the housing or housing shell (6) having a fixing structure (7) on a housing rear surface of the housing or housing shell (6) surrounding the rear surface of the display (3), the fixing structure (7) being formed so that the display device (2) can be fixed to the shelf rail (1); the shelf rail (1) has a first clamping element (15) extending along the shelf rail (1) and a second clamping element (16) extending parallel to the first clamping element (15), both clamping elements (15, 16) being configured to clamp and couple with a fixed structure (7) of the display device (2); One of the two clamping elements (15, 16) is formed so as to form a shelf rail reinforcing structure, which reinforces the housing or housing shell (6) of a display device (2) fitted into the shelf rail (1) at the rear surface of the housing of the display device (2) adjacent to the fixing structure (7) or up to the edge of the rear surface of the housing.

12. at least one of the clamping elements (15, 16) has an operating extension (19) which is dimensioned so as to protrude from a housing edge of the housing or housing shell (6) of the display device (2) fitted into the shelf rail (1); The shelf rail (1) according to claim 11, wherein the clamping element (16) having the operating extension (19) is formed such that, when a force is applied to the operating extension (19), the clamping connection of the display device (2) with the fixed structure (7) can be released.

13. The shelf rail (1) according to any one of claims 11 to 12, wherein at least one of the clamping elements (15, 16) has a fixing element (17) configured as a synthetic resin lane extruded onto the clamping element (15), which is formed as a synthetic resin element that cooperates with a fixing structure (7) of the display device (2) to fix the position of the display device (2).

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