JP2008194121A - Display shelf - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display shelf tag display arranged in the front area of the placing table of a display shelf easily visibly to customers in a standing posture. <P>SOLUTION: A projector image projected from a projector 14 passes through an image projection space 18 secured so as to be guided to the back surface side of a transmission type screen 7, is then projected to the back surface side of the transmission type screen 7 and is transmitted and projected to the surface side. In the front area of the placing table 6 for placing an article 4 provided in the display shelf 1, the transmission type screen 7 is arranged so as to be inclined upward. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a display shelf provided with a transmissive screen capable of transmissively projecting a projector image received on the back side onto the surface.

  2. Description of the Related Art Conventionally, a shelf label attached to the front of a display shelf has been used at a sales floor of a retail store such as a supermarket or a convenience store to show the price of an item to be displayed and other information to a customer. Display shelves that display electronically the shelf label display to reduce the hassle of changing the information written on the shelf label and moving the shelf label as the item is displayed The invention is disclosed. For example, Patent Literature 1 discloses a display shelf in which a thin display device such as a liquid crystal panel or an organic EL panel having a horizontal length is installed on the front surface of each mounting table. Patent Literature 2 discloses a liquid crystal display or an LED display. Each display shelf provided with a display unit realized by the above is disclosed.

JP 2005-099888 A Japanese Patent Application Laid-Open No. 07-017608

  In the display shelves disclosed in Patent Literature 1 and Patent Literature 2, information on goods is displayed on a display device such as a liquid crystal panel or an organic EL panel. This display device is often installed vertically in the front area of the display shelf, but when this display device is placed below the display shelf, the customer sees information on the items displayed on the display device. In addition, the posture must be lowered or squatting.

  An object of the present invention is to display a shelf label display arranged in a front area of a display shelf of a display shelf in an easy-to-read manner for a standing customer.

  The display shelf of the present invention has a plurality of mounting tables on which goods can be placed and are arranged at different height positions, and is inclined upward in the front area of the mounting table in association with the mounting table. A plurality of transmissive screens that can be projected and projected onto the front side of the projector image projected from the back side, and a projector installation unit in which a projector device that projects the projector image composed of one screen is disposed An optical system that divides and guides the projector image projected from the projector device to the back side of each of the transmissive screens.

  According to the present invention, since the projector image that becomes the shelf label display is transmitted and projected onto the surface side of the transmissive screen that is positioned in the upward direction in front of the display rack of the display shelf, It can be displayed in an easy-to-read manner for standing customers.

[Construction]
An embodiment of the present invention will be described with reference to FIGS. This embodiment introduces a display shelf system 101 suitable for application to a supermarket.

  FIG. 1 is a schematic diagram of the entire display shelf system 101.

  A display shelf system 101 according to the present embodiment includes a display shelf 1 installed in a store, a projector device 14 installed in the display shelf 1, and a computer 16 arranged in a backyard. . The projector device 14 and the computer 16 are connected via the network 102.

  The display shelf 1 includes a mounting table 6 on which an item 4 can be mounted and displayed. The mounting table 6 is a shelf plate whose side surfaces are supported by the pair of side plates 3, and is provided in three stages at different height positions. The display shelf 1 also includes a screen 7 that is positioned below the front end of each mounting table 6 and tilted upward from the vertical. That is, the screen 7 is positioned in the front area of the mounting table 6 in association with each mounting table 6. This screen 7 has a frosted glass-like structure, for example, and is a transmissive type capable of transmissively projecting a projector image projected from the back side onto the surface. The screen 7 is formed without any break in the full width of the mounting table 6. Such a screen 7 is also provided below the front end of the top 2 that covers the top of the display shelf 1.

  The projector device 14 is, for example, a liquid crystal projector that projects a projector image from a lens 15 (see FIG. 3) toward a screen 7 provided in the display shelf 1. The projector device 14 is disposed in a projector installation unit 19 a provided inside the display shelf 1. Then, the projector device 14 receives an image transmitted from the computer 16 installed in the backyard, generates a projector image composed of one screen based on the received image data, and projects it on the screen 7.

  The computer 16 includes a main body tower 103, a display 104, a keyboard 105, and a pointing device 106 such as a mouse as its external appearance. The computer 16 manages image data of a projector image projected by the projector device 14.

  FIG. 2 is a perspective view of the entire display shelf 1.

  The external configuration of the display shelf 1 will be described in more detail with reference to FIG.

  The display shelf 1 is configured by a top plate 2, a back plate 10 (see FIG. 3), and a lower front plate 11 sandwiched between a pair of side plates 3.

  The top plate 2 is positioned at the top of the display shelf 1 and fixed between the pair of side plates 3 so as to be horizontal. Below the front end of the top plate 2, the top screen 7 d is fixed to the top plate 2 and the pair of side plates 3 and installed in the vertical direction.

  The lower front plate 11 is positioned below the front surface of the display shelf 1 such that the lower side is in contact with the floor surface and is sandwiched between the pair of side plates 3 so as to be vertical. Further, the back plate 10 is fixed to the back surface of the display shelf 1 so that the lower side is in contact with the floor surface and the upper side is connected to the top plate 2 so as to be sandwiched between the pair of side plates 3 to be vertical.

  On the display shelf 1, a three-stage mounting table 6 for displaying the item 4 is arranged. That is, the lowermost stage 6c is arranged below the display shelf 1, and the middle stage 6b and the uppermost stage 6a are sequentially arranged upward. Each mounting table 6 (6a, 6b, 6c) is sandwiched between a pair of side plates 3 and fixed so as to be horizontal. Below the front end of each mounting table 6, screens 7 a, 7 b, 7 c are arranged to be inclined upward from the vertical. Among these, the screens 7 a and 7 b are fixedly disposed on the mounting tables 6 a and 6 b and the pair of side plates 3. Further, the screen 7c is fixedly disposed on the mounting table 6c, the lower front plate 11 and the pair of side plates 3.

  A back plate 10 a that defines the depth of the mounting table 6 is erected and arranged at the back end of each mounting table 6.

  From the top of each back plate 10a, a ceiling plate 9 (see FIG. 3) that forms the ceiling of the mounting table 6 is disposed along the installation direction of the mounting table 6. The ceiling plate 9 is disposed on the back side of the screen 7 with a predetermined inclination from the horizontal direction so as not to block the projector image projected from the projector device 14. Each ceiling plate 9 has its front end connected to the lower end of the screen 7 disposed above each ceiling plate 9.

  Above each ceiling plate 9, a stepped image projection space 18 having a planar spread parallel to the mounting table 6 and the top plate 2 is formed. More specifically, a stepped image projection space 18a is provided in a region between the ceiling plate 9 connected to the screen 7a and the mounting table 6a, and a region between the ceiling plate 9 connected to the screen 7b and the mounting table 6b. A stepped image projection space 18b is formed in a region between the ceiling plate 9 and the top plate 2 connected to the screen 7d.

  FIG. 3 is a vertical side view of the display shelf 1.

  The internal configuration of the display shelf 1 will be described in more detail based on FIG.

  The display shelf 1 is located below the mounting table 6c arranged at the lowermost stage, in a lower space 19 formed so as to extend in the vertical direction between the lower front plate 11 and the back plate 10, in a projector installation portion. 19a is provided. The projector installation unit 19 a is configured in such a shape that the projector device 14 is disposed on the bottom plate 10 b constituting the bottom surface of the display shelf 1 with the optical axis O of the projector device 14 facing the rear horizontal direction.

  The display shelf 1 also divides the projector image projected from the projector device 14 disposed in the projector installation unit 19a into the internal space, and the rear surface of each screen 7 without blocking the divided individual divided projector images. An optical system 23 that leads to the side is provided. The optical system 23 includes a main reflecting mirror 21, two folding mirrors 22, and four projection mirrors 24. Each of these reflecting mirrors is a plane mirror, and has a mirror surface that reflects a projector image on one surface.

  These reflecting mirrors constituting the optical system 23 will be described below.

  The main reflecting mirror 21 is positioned in the vicinity of the bottom plate 10b on the back side of the internal space of the display shelf 1, and is disposed in a direction in which the projector image projected from the projector device 14 in the horizontal direction is deflected upward.

  The four projection mirrors 24 are respectively provided in the back image projection space 17 formed in the back surface of the display shelf 1 between the back plate 10 and the back plate 10a so as to extend in the vertical direction in parallel with the back plate 10. Corresponding to the screen 7, it is arranged above the main reflecting mirror 21. The upper end of the projection mirror 24 is aligned with the height position of the upper edge of the corresponding screen 7, and the projection mirror 24 is arranged in a direction to project the projector image onto the screen 7. That is, the projection mirror 24a projects the projector image onto the screen 7a, the projection mirror 24b projects the projector image onto the screen 7b, and the projection mirror 24c projects the projector image onto the screen 7c. Are arranged in the direction in which the projector image is projected onto the screen 7d.

  The two folding mirrors 22 are arranged in the lower space 19 and constitute a folding optical system that guides the projector image to the screen 7c positioned at the lowest stage together with the projection mirror 24c. More specifically, the folding mirror 22a is incident between the main reflecting mirror 21 and the projection mirror 24c and is incident on the upper end of the folding mirror 22a of the projection light of the projector image that is deflected by the main reflecting mirror 21 and incident. It arrange | positions in the direction which projects light to a front horizontal direction. The folding mirror 22b is arranged below the lowermost stage 6c in parallel with the projection mirror 24c.

Among the reflecting mirrors constituting the optical system 23, the projection mirrors 24a, 24b, 24d and the folding mirror 22a are different in position in the front-rear direction of the display shelf 1, deflected by the main reflecting mirror 21, and incident from below. The images are arranged in a positional relationship that does not block the images. Further, the folding mirror 22b and the projection mirror 24c are respectively arranged at positions that do not block the projector images projected on the main reflecting mirror 21, the projection mirrors 24a, 24b, 24d, and the folding mirror 22, respectively. The folding mirrors 22a and 22b and the projection mirror 24c are respectively arranged at positions that do not block the projection path until the projector image is projected onto the screen 7c.
[Action]
In such a configuration, the display shelf 1 displays information on the item 4 as a shelf label display to the customer. That is, the projector device 14 provided inside the display shelf 1 projects a one-screen projector image including the contents of the shelf label display. The projected projector image is incident on the projection mirrors 24a, 24b, 24d and the folding mirror 22a. The projection mirrors 24a, 24b, 24d and the folding mirror 22a are arranged in a positional relationship that does not block the incident projector images, and the projector images are divided by these reflecting mirrors.

  Of the divided projector images, the divided projector images incident on the projection mirrors 24a and 24b are projected on the back side of the screens 7a and 7b and are projected on the front side. Of the divided projector images, the divided projector image incident on the folding mirror 22a is projected on the back side of the screen 7c after passing through a reflective optical system including the folding mirror 22 and the projection mirror 24c. Projected to the side. Of the divided projector images, the divided projector image incident on the projection mirror 24d is projected on the back surface side of the top screen 7d and is transmissively projected on the front surface side.

  After passing through the projection path as described above, the projector image having a single screen projected from the projector device 14 is displayed on the top screen 7d provided on the upper part of the display shelf 1 and the front area of the mounting table 6. The images are divided, transmitted and projected on the screens 7a, 7b, 7c provided. Therefore, when the display shelf 1 according to the present embodiment is used, image data representing a POP advertisement or shelf label display is transmitted from the computer 16 to the projector device 14 in an area corresponding to each screen 7 in the projector image having a single screen configuration. Then, a projector image having a single screen configuration can be projected from the projector device 14 onto each screen 7, and a POP advertisement or a shelf label can be displayed to the customer. For example, when various kinds of vegetables are displayed on the display shelf 1, the computer 16 is operated to draw a POP character “vegetable sale!” And an illustration of vegetables on the area corresponding to the top screen 7 d in the projector image. When the image of the POP advertisement that is easily noticeable by the customer is created, the POP advertisement that serves as an eye catcher for the customer of the entire item 4 displayed on the display shelf 1 is projected on the top screen 7d. Similarly, by operating the computer 16, “special sales”, “10% OFF for all products”, and “Chinese cabbage 120 yen” for each area corresponding to the screens 7 a, 7 b, 7 c in the projector image, etc. If the shelf label display image is created, information corresponding to the item 4 displayed on the display shelf 1 can be displayed on the screens 7a, 7b and 7c to the customer as a shelf label display.

  By the way, the projector device projects the projector image onto a screen through a lens provided on the front surface thereof. In general, an image of an object connected through a lens is accurately focused on an image plane having a conjugate relationship with an object plane including the object. Therefore, in order to accurately focus and project the projector image projected from the projector device on the screen, the liquid crystal display device provided inside the projector device is used as an object plane and has a conjugate relationship with the liquid crystal display device. It is necessary to arrange the screen in accordance with the position of a certain image plane.

  The contents displayed on the screens 7a, 7b, and 7c of the display shelf 1 of the present embodiment are shelf label displays that indicate information on the item 4, and the projector images that are projected on the screens 7a, 7b, and 7c are shelf label displays. It is only necessary that the image is formed to such an extent that it fulfills the function. Therefore, the relationship between the image formation of the projector image and the arrangement of the screen 7 will be described.

  FIG. 4 is a longitudinal side view showing a projection path of a projector image projected on the screen 7.

  First, it is assumed that the main reflecting mirror 21, the projection mirror 24, and the folding mirror 22 are not arranged. The optical axis O of the projection optical system of the virtual projector device 14s corresponding to the projector device 14 arranged at a position symmetric with respect to the surface S formed by the main reflecting mirror 21 forms an angle θ with respect to the vertical line P. . Then, the image of the virtual liquid crystal display device 25s corresponding to the liquid crystal display device 25 is focused on a plane perpendicular to the optical axis O, that is, the virtual image plane 27 and projected without distortion.

  Attention is paid to the screen 7a and the projection mirror 24a. If the projection mirror 24a is not taken into consideration, the light La to be projected on the uppermost part of the screen 7a forms an angle κ with the optical axis O and passes through the principal point 26 and the reflection point 28a reflected by the projection mirror 24a in this order. Then, the virtual image plane 27 is reached. At this time, the light La and the image plane 27 form an angle α (α = π / 2−κ), and the distance until the light La reaches the image plane 27 from the reflection point 28a is Da.

  Therefore, when the projection mirror 24a is arranged, an image in which the position of the upper end of the screen 7a is separated from the projection mirror 24a by a distance Da in the front horizontal direction and is inclined inward by an angle α with respect to the horizontally placed mounting table 6a. When the screen 7a is disposed on the surface 29a, the liquid crystal display device 25 and the screen 7a have a conjugate positional relationship.

  When the screens 7b, 7c, and 7d are arranged on the image planes 29b, 29c, and 29d, the positional relationship is conjugate with the liquid crystal display device 25.

  That is, the upper edge of the screen 7b is separated from the projection mirror 24b by a distance Db in the front horizontal direction, and is inclined inward by an angle β (β = π / 2−λ) with respect to the mounting table 6b. When arranged on the image plane 29b, the liquid crystal display device 25 and the screen 7b have a conjugate positional relationship.

  Further, the screen 7c has the light Lc to be projected on the upper edge of the screen 7c, and the optical distance in the folding optical system from the folding mirror 22a to the screen 7c is Dc (Dc = Dc1 + Dc2 + Dc3). If the liquid crystal display device 25 and the screen 7c are arranged on the image plane 29c positioned in the front horizontal direction and inclined inward by an angle γ (γ = π / 2−μ) with respect to the mounting table 6c, Is a conjugate positional relationship.

  Further, the upper edge of the screen 7d is separated from the projection mirror 24d by a distance Dd in the front horizontal direction, and is inclined inward by an angle δ (δ = π / 2−ν) with respect to the top plate 2. When arranged on the image plane 29d, the liquid crystal display device 25 and the screen 7d have a conjugate positional relationship.

  Here, regarding the display shelf 1 of the present embodiment, the screens 7a, 7b, and 7c are installed so as to be inclined upward from the vertical so that the display contents are easy to see for a standing customer. The top screen 7d is installed vertically. If the screen 7 is arranged near the image plane 29 depending on the depth of field of the lens 15 of the projector device 14, a projected image focused at such a degree that the display content can be sufficiently recognized by the customer is obtained. Will be tied.

  Therefore, even if the screen 7 is tilted upward from the vertical and installed in the front area of the mounting table 6, the projector image projected on the screen 7 is sufficiently high to display to the customer as a shelf label display. The image can be focused.

Further, even when these screens 7 are positioned below the display shelf 1 and close to the projector device 14 like the screen 7c of the present embodiment, the folding mirrors 22 (22a and 22b) are disposed. It is possible to provide an optical distance sufficient to form a projector image projected from the projector device 14 on the screen 7c. Thus, by providing the folding mirror 22 in the middle of the projection path of the projector image, each screen 7, particularly the screen 7 c provided at the lowermost stage, is made to recognize the display contents projected on the screen 7. A projector image can be formed to such an extent that it can be achieved.
[Another embodiment]
Next, another embodiment will be described with reference to FIG. In this case, the same portions as those in the embodiment described with reference to FIGS. 1 to 4 are denoted by the same reference numerals, and description thereof is also omitted.

  The display shelf 1 according to another embodiment of the present invention is different from the above-described embodiment in the arrangement of optical systems displayed on the screen 7c. That is, the folding mirror 22 of the present embodiment is different from the above-described embodiment in that the divided projector image is installed so as to be folded up and down, and the projection mirror 24c is provided in front of the folding mirror 22. To do.

  FIG. 5 is a longitudinal side view showing the projection path of the projector image projected onto the screen 7 in the present embodiment.

  The folding mirror 22a in the present embodiment is arranged in a direction in which the light Lc is deflected downward, and the folding mirror 22b in the present embodiment is arranged with the folding mirror 22a and the mirror surface facing each other in parallel.

  And in the display shelf 1 of this Embodiment, the projection mirror 24c is arrange | positioned in the lower space 19 of the downward direction of the mounting base 6c with sufficient space.

For this reason, the number of mirrors positioned in the back image projection space 17 is reduced, and the depth of the back image projection space 17 can be reduced.
[Another embodiment]
Next, still another embodiment will be described with reference to FIG. In this case, the same portions as those in the embodiment described with reference to FIGS. 1 to 5 are denoted by the same reference numerals, and description thereof is also omitted.

  The display shelf 1 according to another embodiment of the present invention is different from the above-described embodiment in that the projector device 14 and the main reflecting mirror 21 are arranged on the upper side of the display shelf 1.

  FIG. 6 is a longitudinal side view showing a projection path of a projector image projected onto the screen 7 in the present embodiment.

  The screen 7d is not disposed below the front end of the top plate 2 in the present embodiment, and instead, an upper front plate 11a that prevents light from entering the internal space of the display shelf 1 is disposed. Since the upper front plate 11a is positioned and arranged at the top of the display shelf 1 that is easily noticeable to the customer's eyes, the item 4 displayed on the display shelf 1 with a POP advertisement pasted on the front side of the display shelf 1 Can be promoted.

  In addition, the projector installation unit 19a according to the present embodiment is provided in a stepped image projection space 18d formed above the placement space in which the item 4 arranged on the uppermost stage can be placed. On the ceiling plate 9 constituting the bottom surface of the stepped image projection space 18d, the projector device 14 is arranged in a direction in which a projector image is projected in the rear horizontal direction. That is, in the present embodiment, the ceiling plate 9 constituting the bottom surface of the stepped image projection space 18d also functions as the projector installation unit 19a. Here, by providing the stepped image projection space 18d at a position higher than that in the above-described embodiment, a sufficient optical distance can be secured for forming the projector image on the screen 7.

  Further, the main reflecting mirror 21 in the present embodiment is arranged in a direction for deflecting the projector image projected from the projector device 14 downward.

  Also with the display shelf 1 of the present embodiment, the screen 7 is installed at the front end of the mounting table 6 so as to be inclined upward from the vertical direction, and a projector image is transmitted and projected from the back side of the screen 7 to the front side. Therefore, it is possible to display the projector image in an easy-to-view manner even for standing customers. Further, in the display shelf 1 of the present embodiment, the projector device 14 is disposed above the display shelf 1, so that the screen 7c disposed at the lowest level may be provided at a lower position as shown in FIG. it can.

  Note that, depending on whether the number of mirrors reflected by the projector image is an even number or an odd number, the top and bottom of the divided projector image projected on the screen 7 is inverted. In this case, image data in an area corresponding to the screen 7 on which the divided projector image is projected by being inverted upside down among the image data of the projector image is created in advance by vertically inverting the image data itself, and is then displayed on the screen 7. It is necessary to project a projector image.

It is a schematic diagram of the whole display shelf system. It is a perspective view of the whole display shelf. It is a vertical side view of a display shelf. It is a vertical side view which shows the projection path | route of the projector image projected on a screen. It is a vertical side view which shows the projection path | route of the projector image projected on a screen in another embodiment. It is a vertical side view which shows the projection path | route of the projector image projected on a screen in another embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Display shelf, 4 ... Goods, 6 ... Mounting stand, 7 ... Transmission type screen, 14 ... Projector apparatus, 19a ... Projector installation part, 21 ... Main reflecting mirror (optical system), 22 ... Folding mirror (optical system), 23 ... Optical system, 24 ... Projection mirror (optical system)

Claims (4)

A plurality of mounting tables on which items can be mounted and arranged at different height positions;
A plurality of transmission screens that are individually associated with the mounting table and are positioned to be inclined upward in the front area of the mounting table, and capable of transmitting and projecting a projector image projected from the back side to the front side;
A projector installation unit in which a projector device for projecting a projector image composed of one screen is disposed;
An optical system that divides and guides the projector image projected from the projector device to the back side of each of the transmissive screens;
Display shelf with.   The display shelf according to claim 1, wherein the projector installation unit is provided below a mounting table described in the lowermost stage.   The display shelf according to claim 2, wherein the optical system that guides the projector image to the transmissive screen that is part of the optical system and is positioned in association with the mounting table disposed at the lowermost stage is a folding optical system. .   The display shelf according to claim 1, wherein the projector installation unit is provided above a placement space in which an item formed on an upper part of the placement table disposed at the uppermost stage can be placed.

Images