JP5353249B2 - Showcase shelf lighting equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shelf lighting device for a showcase which has a linear LED lamp arranged on the lower surface of an merchandise display shelf is disposed via a simple resin lamp holder and is improved to variably adjust the attachment angle of the linear LED lamp in a desired direction. <P>SOLUTION: In the shelf lighting device for a showcase where the linear LED lamp is disposed on the lower surface of the merchandise display shelf 5 via the lamp holder 11 with the linear LED lamp 10 having a square outer shape as a light source. The lamp holder 11 is a resin mold where a clip portion 11b is arranged at a C-shaped ring body 11a having partially notched circumference, a pair of lamp holders 11 are fixed side by side to the merchandise display shelf 5 via the clip portions 11b, and the linear LED lamp 10 is fitted to and put through the C-shaped ring bodies 11a so as to be spanned at a prescribed position. Besides, notched groove strings 11c engaged with the contour corners of the linear LED lamp 10 are formed in the inner peripheral surface of the C-shaped ring body 11a, thereby adjusting the attachment angle of the linear LED lamp 10 to the desired angle. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a shelf lighting device for a multistage showcase using a line type LED lamp as a light source, and more particularly to a structure of a lamp holder constructed on the lower surface of a product display shelf in which a line type LED lamp is arranged in a cabinet.

As is well known, in a conventional showcase, a straight tube type fluorescent lamp is used as an interior lighting lamp, and this fluorescent lamp is installed on the lower side of the product display shelves arranged in the upper and lower stages and displayed on the lower shelf. The product is illuminated from above.
Next, FIG. 3 and FIG. 4 show a shelf illumination device for a multistage showcase employing a fluorescent lamp. First, in FIG. 3, 1 is an outer box of an open front type main body case, 2 is an inner box, 3 is a cooler, 4 is an internal fan, and a product display shelf 5 is installed in the upper and lower stages. In addition, for each product display shelf 5 at each stage, a straight tube type fluorescent lamp 6 is arranged on the lower surface side of the shelf plate so as to illuminate the products arranged on the product display shelf 5 one step below.

  Here, in order to support the fluorescent lamp 6 on the lower surface side of the commodity display shelf 5, as shown in FIGS. 4 (a) and 4 (b), a pair of lamp holders fitted and held at both ends of the fluorescent lamp tube. 7 is widely used in the product display shelf 5. The lamp holder 7 has a shape in which a clip portion 7a (snap fit) is provided on a resin-made C-shaped ring with a part cut off on the circumference, and the clip portion 7a is provided on the back side of the product display shelf. The V-shaped reinforcing bracket 5a is inserted into a hole and fixed. In FIG. 4, reference numeral 8 denotes a transparent resin protective tube placed on the glass tube of the fluorescent lamp 6, and 9 denotes a wiring socket for connecting the fluorescent lamp 5 to a power source.

On the other hand, in recent years, the use of LED lamps using LEDs (light emitting diodes) with high brightness and low power consumption instead of fluorescent lamps as an illumination light source for energy saving tends to become widespread. Various types such as line-type LEDs arranged in a line are on the market.
FIGS. 5A to 5C show an example of the line type LED lamp. The line type LED lamp 10 has an array of a plurality of LED elements 10c on a long rectangular frame (aluminum plate) 10a that also serves as a heat sink. An LED module 10b arranged in a shape and a resin-made translucent cover (lens) 10d that covers the front surface of the LED module 10b are mounted, and a wiring connector 10e is connected. Note that mounting screw seats 10a-1 and 10a-2 are provided at both ends of the frame 10a. In addition, the frame 10a is configured as a channel shape (aluminum die-cast product) in which heat dissipating fins are formed on the peripheral surface, and the LED module 10b is disposed inside the frame 10a, and a light transmitting cover (lens) is provided on the front surface of the frame. A line type LED lamp having an arranged structure is also known (for example, Patent Document 1).

  Then, in order to deploy the line-type LED lamp 10 on the product display shelf 5 of the showcase instead of the fluorescent lamp 6 for shelf illumination shown in FIG. 3, for example, the front surface of the reinforcing bracket 5a shown in FIG. The line-type LED lamp 10 is placed on the inclined surface), and the mounting screw seats 10a-1 and 10a-2 provided at both ends of the frame 10a shown in FIG. I try to fix it.

  By the way, as is well known, the light distribution of the LED element is characterized by high directivity compared to other light sources. On the other hand, in the multistage display case, the product display shelves 5-1 to 5-4 arranged in the upper and lower stages as shown in FIG. 6 have different mounting angles (forward tilt angles) and depth dimensions of the shelf boards depending on the stage positions, and The products on the shelves vary in type, size, and display. Therefore, in order to increase the lighting effect of the display product, it is desirable to adjust the irradiation angle of the line type LED lamp 10 toward a desired lighting position as shown in the figure. The irradiation angle cannot be adjusted with the conventional mounting structure in which the product display shelf 5 is directly screwed and fixed.

Therefore, as such an angle adjustment measure, it is installed between the brackets arranged on the left and right side walls of the showcase via the rotating shaft bodies provided at the left and right ends of the housing of the line type LED lamp 10, and the user as required. There is known a shelf lighting device for a showcase that can adjust the mounting angle of the line-type LED lamp 10 (see, for example, Patent Document 2).
JP 2007-26723 A JP 2008-206758 A

By the way, the angle adjustment mechanism of the line type LED lamp disclosed in Patent Document 2 has a problem in that the structure is complicated and the number of assembly parts is large, resulting in high cost.
In addition, since the left and right ends of the line-type LED lamp are connected to a bracket provided on the side wall of the showcase via a rotating shaft, a line-type LED lamp having a length corresponding to the width of the showcase is required. It becomes. In addition, currently available line-type LED lamps available on the market are only about 1 m in length even if they are large-sized, and thus cannot accommodate large-sized showcases used in large stores.

  The present invention has been made in view of the above points, and its object is to provide a simple, substantially the same as a conventional lamp holder used when installing a straight tube fluorescent lamp on the lower surface side of a product display shelf. A line-type LED lamp is installed using a plastic holder that has a simple structure and can be obtained at low cost, and the mounting angle of the line-type LED lamp can be variably adjusted in a desired direction with a simple operation. An object of the present invention is to provide a shelf lighting device for an improved showcase.

  In order to achieve the above object, according to the present invention, there is provided a shelf lighting device for a showcase in which a line-type LED lamp is used as a light source and the line-type LED lamp is installed on the lower surface side of a product display shelf via a lamp holder. The line-type LED lamp has a structure in which an LED module in which a plurality of LED elements are arranged in an array form on a long rectangular frame that also serves as a heat sink, and a translucent front cover are mounted. , A resin molded product provided with a clip portion on a C-shaped ring body with a part cut off on the circumference, and the line-type LED lamp is a pair of lamp holders coupled to the product display shelf via the clip portion. It straddles between and is inserted into the C-shaped ring body of the pair of lamp holders, and is erected and held at a predetermined position.

  Further, the C-shaped ring body of the lamp holder is set to have a diameter dimension so as to circumscribe and grip the outline of the line-type LED lamp, and the outer corner of the line-type LED lamp is engaged along the inner peripheral surface thereof. A notch groove row is formed (claim 2).

  By using the lamp holder described above, the line-type LED lamp can be easily installed on the lower surface of the commodity display shelf in the same manner as the straight tube fluorescent lamp. Moreover, this resin lamp holder is simple and low in cost, and has a simple structure and a small number of parts compared to the angle adjustment mechanism provided with the rotary shaft disclosed in Patent Document 2 described above. In addition, short line-type LED lamps can be installed side by side without being restricted by the width of the showcase.

  In addition, by forming a notch groove row on the inner periphery of the C-shaped ring body of the lamp holder, the mounting angle of the line-type LED lamp that is inserted and held in the holder can be easily adjusted to a desired direction, Accordingly, it is possible to exhibit a lighting effect with high appeal according to the display state of the products arranged on the product display shelf of the showcase.

Embodiments of the present invention will be described below based on the examples shown in FIGS. 1A is a layout view of the lamp holder attached to the product display shelf, FIG. 1B is a shape diagram of the lamp holder, and FIGS. 2A and 2B are line types constructed on the lamp holder. It is the state figure which adjusted the attachment angle of the LED lamp to a different angle.
The lamp holder 11 of the illustrated embodiment is basically the same shape as the installation lamp holder 7 for a straight fluorescent lamp shown in FIG. 4, and is a C-shaped ring body 11a that becomes a resin molded product of engineering plastics such as polycarbonate resin. A snap-fit type clip portion 11b is formed on the circumference of the outer peripheral portion of the LED lamp 10. In addition to this, on the inner peripheral surface of the C-shaped ring body 11a, the outer corner portion ( A notch groove row 11c into which an edge) is inserted is formed. The diameter of the C-shaped ring body 11a corresponds to the outer shape of the line type LED lamp 10, and is set to be slightly smaller than the diagonal size of the cross-sectional outer shape.

  Then, a pair of the lamp holders 11 described above is arranged on the left and right sides, and the clip part 11b is inserted and fixed in a hole drilled in advance in the reinforcing bracket 5a of the commodity display shelf 5 (see FIG. 1 (a)). ) When the both ends of the line-type LED lamp 10 are fitted into the C-shaped ring body 11a of the lamp holder 11, the outer corners of the line-type LED lamp 10 are fitted into the notch groove row 11c as shown in the figure. It is latched and held at this position. 2A and 2B, when the line type LED lamp 10 is rotated in the direction of rotation along the notch groove row 11c of the C-shaped ring body 11a, the mounting angle of the line type LED lamp 10 is shown. Changes, and the irradiation angle of the LED light indicated by the dotted line changes accordingly. At the same time, the line-type LED lamp 10 is locked and held at a new mounting angle position.

  In other words, by changing the mounting angle in the installed state of the line-type LED lamp 10 shown in FIG. 1 (a), the LED light is irradiated as desired for each of the product display shelves 5 in each stage as described in FIG. Can be adjusted to angle.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram of the shelf illuminating device by the Example of this invention, (a) is a state figure which fixed the lamp holder to the lower surface side of a goods display shelf, (b) is a shape figure of a lamp holder. It is explanatory drawing of the attachment angle adjustment of a line type LED lamp, (a), (b) is the figure showing the state which hold | maintained the line type LED lamp in the different attachment angle position, respectively. Schematic diagram of the entire showcase with fluorescent lamps installed on the underside of the product display shelf FIG. 4 is a structural view of the fluorescent lamp in FIG. 3, where (a) is a side view and (b) is a front view of (a). (A), (b), (c) are side view, plan view, and perspective view, respectively. State diagram of line-type LED lamps installed on the lower side of the product display shelves lined up and down adjusted to the desired mounting angle

5 Product display shelf 10 Line type LED lamp 10a Square frame 10b LED module 10c LED element 10d Translucent cover 11 Lamp holder 11a C-shaped ring body 11b Clip part 11c Notch groove row

Claims (2)

There is a shelf lighting device for a showcase in which a line type LED lamp is used as a light source, and the line type LED lamp is installed on a lower surface side of a product display shelf via a lamp holder, and the line type LED lamp is a long-length heat sink. In a structure in which an LED module in which a plurality of LED elements are arranged in an array on a square frame and a translucent front cover are mounted, the lamp holder is a C-shaped ring body with a part of the circumference cut away. It becomes a resin molded product provided with a clip part, and the line type LED lamp straddles between a pair of lamp holders coupled to the product display shelf via the clip part, and a C-shaped ring of the pair of lamp holders A shelf lighting device for a showcase, which is inserted into a body and installed and held at a predetermined position.   2. The shelf lighting device according to claim 1, wherein the C-shaped ring body of the lamp holder is set to have a diameter dimension so as to circumscribe and grip the outline of the line-type LED lamp, and then along the inner peripheral surface thereof. A shelf lighting device for a showcase, wherein a notch groove row into which an outer corner portion of the line type LED lamp is inserted is formed.

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