JP2008210666A - Lighting system in merchandise display shelf - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting system of a merchandise display shelf capable of widely lighting the entire merchandise display space at a lower part, without hindering taking in/out of a merchandise in the merchandise display space at the lower part of a shelf board. <P>SOLUTION: The lighting system 14 in a merchandise display shelf is provided at the front part of the lower surface of the shelf board 6 in the merchandise display shelf and lights the merchandise display space S at the lower part of the shelf board 6. The shelf board 6 is nearly in a downward U shape in the side view where the lower part is open. A plurality of LEDs 25 are arranged in a width direction at an opening formed at the lower part of the shelf board 6. The lighting system 14 having a vertical dimension B smaller than a vertical dimension A in the shelf board 6 is provided while being inclined so that the illumination direction of the LED 25 faces a rear lower part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an illuminating device for a merchandise display shelf, which is provided at a lower front portion of a shelf board of a merchandise display shelf and illuminates a merchandise display space below the shelf board with LEDs.

  As a lighting device for conventional merchandise display shelves, a fluorescent lamp is installed on the underside of the shelves on the bottom of the shelves so that the product display space under the shelves is illuminated. (See, for example, Patent Document 1).

  In addition, as an illumination device mainly intended for use on an office shelf, an illumination device using LEDs (light emitting diodes) is provided on the lower surface of the shelf board, and the lower part of the shelf board is illuminated. (For example, refer to Patent Document 2).

JP 2004-158324 A (page 3, FIG. 1) JP 2007-26723 A (4th page, FIG. 2)

  However, in Patent Document 1, since the fluorescent lamp protrudes downward from the lower end surface of the shelf board, the fluorescent lamp is obstructive and dangerous for putting products into and out of the product display space below the fluorescent lamp. In addition, there is a problem that the appearance appearance is impaired.

  Further, in Patent Document 2, an illumination device using LEDs is a device that illuminates around the illumination device. Therefore, such an illumination device can illuminate the entire product display space in the product display shelf. There was a problem that it was not suitable as a lighting means.

  The present invention has been made paying attention to such problems, and does not obstruct the putting in and taking out of products to and from the product display space below the shelf, and illuminates the entire product display space below. An object of the present invention is to provide a lighting device for a commodity display shelf.

In order to solve the above-mentioned problem, an illumination device for a merchandise display shelf according to claim 1 of the present invention,
A lighting device for a merchandise display shelf that is provided at a lower front portion of a shelf board of a merchandise display shelf and that illuminates a merchandise display space below the shelf board,
The shelf plate has a substantially U-shaped cross-sectional view in which the lower part is opened, and a plurality of LEDs are arranged in the width direction of the shelf board in an opening formed below the shelf board. The illumination device having a vertical dimension smaller than the directional dimension is provided so as to be inclined so that the illumination direction of the LED faces the rear lower side.
According to this feature, the illuminating device provided with the LED does not interfere with the putting in / out of the product to / from the product display space below the shelf board, and can illuminate the entire product display space below the wide range. .

The lighting device for a merchandise display shelf according to claim 2 of the present invention is the lighting device for a merchandise display shelf according to claim 1,
The illumination device is provided so as to be rotatable around a rotation axis in the width direction with respect to the shelf plate.
According to this feature, the degree of freedom of the illumination range of the illumination device can be increased by appropriately rotating the illumination device around the rotation axis.

  Examples of the present invention will be described below.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. First, FIG. 1 is a side sectional view showing an entire image of a refrigerated showcase in an embodiment of the present invention. FIG. 2 is a bottom view showing the lighting device in the freezing and refrigeration showcase. 3 (a) and 3 (b) are side cross-sectional views showing a state where the lighting device is rotated.

  As shown in FIG. 1, a refrigerator-freezer showcase 1 as a product display shelf is mainly installed in a store that handles foods such as a store, a supermarket, or a convenience store, and is kept cold while keeping the product at a low temperature. It is an open showcase installed to display in a frozen state, and a plurality of shelf boards 6 for displaying products are installed in the vertical direction in the refrigerating chamber 5 surrounded by the inner box 3 opened on the front side, Products (not shown) can be displayed on the bottom plate 3b provided in the lower part, and a large number of products can be placed. Hereinafter, in the description of the present embodiment, the front side of the front side is set to the right, the depth side is set to the left, and the opening side (left side) of the inner box 3 is viewed in a state where the freezer / refrigeration showcase 1 of FIG. Description will be made assuming that the front side and the closed side (right side) are the rear side.

  The freezer / refrigerated showcase 1 includes a substantially U-shaped outer box 2 having a front surface (left side in the figure) opened and a substantially U-shaped inner box 3 having a front surface opened to the inside. The case main body which consists of this is comprised, and the internal space becomes the refrigerator compartment 5. A rear end of a plurality of upper and lower shelf boards 6 is attached to the back plate 3 a of the inner box 3, and products (not shown) are displayed on the upper surfaces of the respective shelf boards 6 and the bottom plate 3 b of the inner box 3. It is like that.

  A ventilation path 7 is formed between the outer box 2 and the inner box 3, and a cooling device 8 and a blower 9 are installed on the vertical part and the bottom part of the ventilation path 7, respectively. A cold air outlet 10 communicating with the ventilation path 7 is formed downward at the front end of the upper part of the case body, and is opened upward between the outer box 2 and the inner box 3 at the upper end of the lower part of the front end of the case body. A cold air inlet 11 is formed.

  When the blower 9 is operated, the cold air cooled by the cooling device 8 flows upward in the ventilation path 7 as indicated by an arrow, and is blown out from the cold air outlet 10 toward the lower inlet 11. . As a result, a cold air curtain 12 is formed on the open surface of the front surface of the case body, and a part of the cold air flows into the refrigerator compartment 5 so that the displayed product is kept cold.

  Next, the lighting device in the freezer / refrigerator showcase 1 will be described. The shelf that is provided on the lower front portion of each shelf board 6 and that illuminates the product display space S placed on the upper surface of the shelf board 6 below each shelf board 6. Illuminating device 14, canopy illuminating device 15 provided on the lower surface of canopy 13 and irradiating light stronger than illuminating device 14, and inner illuminating device 16 provided above illuminating device 14. The freezer / refrigerator showcase 1 is attached at a proper position.

  As shown in FIG. 2 and FIGS. 3A and 3B, the shelf lighting device 14 will be described in detail. First, each shelf board 6 is formed in a flat plate shape so that a product (not shown) is placed on the upper surface. The formed flat plate portion 6a and the bent portion 6b which is continuously bent downward at a substantially right angle toward the front side of the flat plate portion 6a and further bent at a substantially right angle toward the rear side. It is formed in a substantially U-shape that is open downward in a side sectional view. Further, a shelf board support member 17 and a reinforcement board 18 that support each shelf board 6, and a display board 19 that displays the price of goods on the front surface of the shelf board 6 are configured around the shelf board 6.

  More specifically, the shelf support member 17 is fixedly attached to the back plate 3a and extends in the front-rear direction so as to support the shelf 6 at the lower left and right ends of the shelf 6. The reinforcing plate 18 is bent in a substantially V shape that opens upward in a side view, is attached to the front side of the bottom surface of the shelf plate 6, and is provided so as to be able to support the shelf plate 6 on which a product is placed and loaded. Yes. Further, the display plate 19 is attached by fitting a fitting portion 19a formed at the rear portion to the bent portion 6b of the shelf board 6, and for example, information such as the product name and price of the product placed on the shelf board 6 is displayed. It can be displayed.

  Next, the shelf illumination device 14 includes an aluminum case 23 as a substantially U-shaped illumination case that opens downward in a side view, a substrate 24 housed inside the aluminum case 23, an LED 25, a reflector 27, and aluminum. The glare 26 is attached mainly so as to cover the inside of the case 23, and is provided along the left-right width direction at the front of the lower surface of each shelf 6.

  More specifically, LEDs 25 are provided at predetermined intervals in the left-right width direction on a substrate 24 mounted inside an aluminum case 23 constituting the lighting device 14. Further, the reflector 27 attached in the left-right width direction in the vicinity of the LED 25, that is, on the front surface of the substrate 24, is attached to the substrate 24 with the fixing screw 21, and the engagement grooves formed on the inner wall of the aluminum case 23 at the front and rear sides. It is engaged with 23a and formed in an inner curved surface downward. Furthermore, the glare 26 is a flat plate shape having translucency, and is fitted in a concave groove 23b formed at the opening end of the aluminum case 23 to protect the LED 25 and the like housed in the aluminum case 23. Yes. Further, a radiator 23c having fins composed of a plurality of protrusions is provided on the outer surface of the aluminum case 23 so that heat generated in the aluminum case 23 due to illumination of the LED 25 can be dissipated. In addition, it is not always necessary to employ an aluminum case as the lighting case, and it may be a case made of metal or resin of other materials.

  As described above, the lighting device 14 is composed of the aluminum case 23 and constituent members such as the LED 25 housed in the aluminum case 23. The vertical dimension B of the lighting device 14 is the vertical dimension of the aluminum case 23. The vertical dimension B is shorter than the vertical dimension A of the shelf board 6.

  Next, attachment to the shelf board 6 of the illuminating device 14 is demonstrated.

  The illuminating device 14 is attached to the front surface of the bottom surface of the shelf board 6, that is, the front side of the reinforcing plate 18 in a state of being inclined with respect to the shelf board 6 as described later.

  More specifically, a blocking material 32 that closes both the left and right ends of the aluminum case 23 that accommodates the LEDs 25 and the like is attached by the fixing screws 30, and the bracket 22 that is fixed to the reinforcing plate 18 by the fixing screws 20 is the blocking material. The contact portion 22 b formed in the upper portion is in contact with the lower surface of the flat plate portion 6 a of the shelf plate 6. The cylindrical shaft body 33 is inserted in the left-right width direction of the shelf 6 into the insertion hole 32a formed in the closing material 32 and the insertion hole 22a formed in the bracket 22 with the same diameter as the insertion hole 32a. Insert.

  That is, the lighting device 14 is a shaft body on a virtual rotation axis D that coincides with the center line of the LED 25 aligned in the width direction of the shelf board 6 on the bracket 22 provided on the shelf board 6 via the reinforcing plate 18. The LED 25 is mounted so as to be inclined so that the illumination direction of the LED 25 faces rearward and downward, and is rotatable about the shaft 33. Specifically, as shown in FIG. 3A, the lighting device 14 has a state in which the outer surface of the aluminum case 23 is in contact with the mounting portion 18 a of the reinforcing plate 18 so that the illumination direction from the LED 25 faces the rearmost side. As shown in FIG. 3B, the outer surface of the aluminum case 23 is in contact with the fitting portion 19a of the display plate 19 and can rotate between the state in which the illumination direction from the LED 25 faces the most front side. Is provided.

  By doing so, the number of parts to which the lighting device 14 is attached can be reduced, the labor and time for mounting the lighting device 14 to the shelf 6 can be saved, and the lighting device 14 can be rotated around the shaft 33. By providing in, the goods display space S under the shelf board 6 can be illuminated widely.

  Thus, the degree of freedom of the illumination range of the illumination device 14 can be increased by appropriately rotating the illumination device 14 around the virtual rotation axis D passing through the center of the shaft body 33.

  In the present embodiment, as described above, the lighting device 14 having the vertical dimension B smaller than the vertical dimension A of the shelf board 6 is provided so as to be inclined so that the illumination direction of the LED 25 faces the rear lower side. . By doing in this way, since the illuminating device 14 which has arrange | positioned LED25 can suppress the protrusion part which protrudes from the lower surface of the shelf board 6 small, the taking-in / out of goods to the goods display space S under the shelf board 6 is carried out. It is possible to illuminate the entire lower product display space S without obstruction.

  The shaft body 33 is provided with insertion holes 33a having both ends communicating with each other, and a power cable 34 connected to each LED 25 and supplying power is inserted into the insertion holes 33a. By doing in this way, even if the illuminating device 14 is rotated with respect to the bracket 22, the power cable 34 inserted through the insertion hole 33 a of the shaft body 33 whose position hardly changes is not twisted. The power cable 34 can be prevented from being damaged or leaked.

  Further, a protective cover 31 formed so as to cover the insertion hole 33a of the shaft body 33 from the outside is attached to the bracket 22. By doing so, the protection cover 31 is inserted into the insertion hole 33a of the shaft body 33. The power cable 34 can be protected by the protective cover 31 formed so as to cover the insertion hole 33a.

  The shaft body 33 does not necessarily have to be provided at both ends in the width direction of the lighting device 14, and the lighting device can be rotated around one shaft body provided only at one end side in the width direction. It may be provided.

  Next, illumination by the illumination device 14 will be described.

  As shown in FIGS. 3 (a) and 3 (b), the LED 25 accommodated in the aluminum case 23 is irradiated with light that is highly linear, and the light emitted from the LED 25 is light in a side view. The virtual center axis C is strongest and tends to become weaker as it spreads from the center axis C at predetermined light spread angles θ1 and θ2.

  By tilting the illumination device 14 as described above, the center axis C of the light from the LED 25 is directed rearward and downward, and the side view shape of the aluminum case 23 to which the LED 25 is attached is slightly asymmetrical left and right. The light spreading angle θ2 from the central axis is formed smaller than the light spreading angle θ1 from the central axis to the front light spreading angle θ1. Specifically, the light spreading angle θ1 on the front side from the central axis is set to about 45 degrees, and the light spreading angle θ2 on the rear side from the central axis is set to about 38 degrees smaller than 45 degrees.

  In this way, a relatively small luminous flux is emitted from the illuminating device 14 to the near side of the product display space S below the shelf 6 that is relatively close to the illuminating device 14 provided on the front surface of the bottom surface of the shelf 6. Since the light is irradiated and the light of a relatively large luminous flux is irradiated from the lighting device 14 to the back side of the product display space S below the shelf 6 that is relatively far from the lighting device 14, the lighting device 14 is placed on the shelf. The entire product display space S below the plate 6 can be illuminated uniformly and over a wide area.

  Further, by using the shape of the aluminum case 23 as the lighting case, the light spreading angles θ1 and θ2 can be easily set.

  If the light spread angles θ1 and θ2 from the central axis C are formed so that the light spread angle θ2 on the rear side from the central axis C is smaller than the light spread angle θ1 on the front side from the central axis C. However, the light spread angle θ1 on the front side from the central axis C is not necessarily set to about 45 degrees, and the light spread angle θ2 on the rear side from the central axis is not necessarily set to about 38 degrees.

  Further, a reflecting plate 27 that reflects light is provided in the vicinity of the LED 25, and a part of the light that travels straight from the LED 25 is reflected by the reflecting plate 27 and irradiated toward the product display space S below the shelf 6. . As described above, the light from the LED 25 having a large linearity can be diffused over a required range with a simple configuration in which only the reflection plate 27 is provided.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, in the above-described embodiment, the lighting device is applied to the refrigerated showcase 1 as the product display shelf. However, the lighting device can also be applied to a general product display shelf.

  Moreover, in the said Example, although the spreading | diffusion angle of the light from the central axis C of the light of LED25 is set with the aluminum case 23 as a lighting case, the spreading | diffusion angle of light does not need to be set with a lighting case. .

  Moreover, in the said Example, although the reflecting plate 27 which reflects light is provided in the vicinity of LED25, the reflecting plate does not need to be provided especially. Further, the shaft body that can rotate the lighting device may not necessarily be on the rotation axis D that coincides with the central axis line of the aligned LEDs.

  Further, in the above embodiment, the insertion hole 33a is formed in the shaft body 33, and the power cable 34 is inserted into the insertion hole 33a. For example, the hole provided in the closing material 32 and the bracket 22 is provided. A power cable may be inserted through the section. Furthermore, the protective cover 31 may not be provided specially.

  Further, in the above embodiment, the light spreading angle from the central axis C of the light of the LED 25 is set so that the light spreading angle θ2 on the rear side from the central axis C is larger than the light spreading angle θ1 on the front side from the central axis C. For example, the light spreading angle on the front side and the light spreading angle on the rear side may be substantially the same angle.

  Moreover, in the said Example, although the illuminating device 14 is provided so that rotation to the surroundings of the shaft body 33 with respect to the shelf board 6 is carried out, an illuminating device inclines so that the illumination direction of LED may face the back lower back. For example, it may be fixedly provided so as not to be rotatable with respect to the shelf board 6.

It is a sectional side view which shows the whole image of the freezer / refrigeration showcase in the Example of this invention. It is a bottom view which shows the illuminating device in a freezer / refrigeration showcase. (A), (b) is a sectional side view which shows the state which the illuminating device rotated.

Explanation of symbols

1 Refrigerated display case (product display shelf)
2 Outer box 3 Inner box 5 Refrigerated room 6 Shelf plate 7 Ventilation path 8 Cooling device 9 Blower 10 Cold air outlet 11 Suction port 12 Air curtain 13 Canopy 14 Illuminating devices 15 and 16 Illuminating device 17 Shelf plate supporting member 18 Reinforcing plate 19 Display Plates 20 and 21 Fixing screw 22 Bracket 23 Aluminum case (lighting case)
24 Substrate 25 LED
26 Glare 27 Reflector 30 Fixing screw 31 Protective cover 32 Closing material 33 Shaft body 34 Power cable

Claims (2)

A lighting device for a merchandise display shelf that is provided at a lower front portion of a shelf board of a merchandise display shelf and that illuminates a merchandise display space below the shelf board,
The shelf plate has a substantially U-shaped cross-sectional view in which the lower part is opened, and a plurality of LEDs are arranged in the width direction of the shelf board in an opening formed below the shelf board. An illuminating device for a merchandise display shelf, wherein an illuminating device having a vertical dimension smaller than the directional dimension is provided so as to be inclined so that the illumination direction of the LED faces rearward and downward.   The lighting device for a merchandise display shelf according to claim 1, wherein the lighting device is provided so as to be rotatable about a rotation axis in a width direction with respect to the shelf plate.

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