JP2012200405A - Holding device of lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a holding device of lighting fixture of a display shelf using an ordinary lamp holder used when constructing a straight tubular fluorescent lamp on a lower surface side of a merchandise display shelf which is capable of holding both ends of a straight tube-type LED lighting fixture by using a resin holder with simple structure available at low cost and adjusting the attachment angle to a desired direction with simple operation.SOLUTION: The holding device is provided with a first covering member 7 of circular form attached on the outer peripheral surface of the straight tubular lighting fixture and a second covering member 8 attached on the outer peripheral surface of the first covering member 7 mounted on the display shelf. A projection is formed on the outer peripheral surface of the first covering member 7 and a concave/convex section of a shape which accommodates the projection of the first covering member is installed on the inner peripheral surface of the second covering member. A lamp holder is also attached on the outer peripheral surface of the second covering member.

Description

  The present invention relates to a holding device for a lighting fixture provided in a cabinet such as a display shelf in order to make a product bright and attractive, such as a showcase having a space for storing and displaying a product while forming a housing by combining heat insulating walls. Related to.

  Usually, in showcases that can be delivered to stores such as supermarkets and convenience stores, products such as groceries are displayed brightly and nicely. Or the lighting fixture which makes a cylindrical shape along the longitudinal direction of a case is provided in the lower back side of the shelf board of a display shelf.

FIG. 3 shows an overall view of a multi-stage open showcase as a representative example in which the lighting device holding device of the present invention is installed, and in particular, the arrangement relationship between the storage of the showcase and the display shelves and lighting fixtures in the storage Is shown.

3 shown in FIG. 3 is a main body of a showcase in which a heat insulating wall having an opening on the front is combined, 2 is a cold air circulation air passage in the showcase for supplying cold air to a cabinet for displaying and storing products, 3 is a cooler disposed in the cold air circulation air passage 2, 4 is a blower fan for supplying and circulating cold air, 5 is a display shelf for placing and displaying products, and 6 is a display case. Each of the lighting fixtures for placing the product on a display shelf to make the product bright and attractive is shown.

Conventionally, in a showcase, a straight tube type fluorescent lamp is generally used as a lighting fixture, and this fluorescent lamp is installed on the lower surface side of a display shelf so as to illuminate a product placed on the next lower shelf from above. However, recently, lighting fixtures using LEDs (light-emitting diodes) with high brightness and low power consumption as light sources have become widespread instead of fluorescent lamps as lighting fixtures for energy saving.

For example, in a display shelf, a straight tube type lighting device in which a plurality of LED elements are arranged in a cylinder is mainly used as a lighting device for an LED light source, so that replacement of a straight tube type fluorescent lamp is easy. In the lighting fixture using LED, the light distribution property is known to have higher directivity than other light sources, and straight tube type LED lighting fixtures are no exception.

On the other hand, the display shelf of a multi-stage open showcase where lighting equipment is installed has a structure in which the height position and mounting angle (tilt angle) can be freely arranged from the upper stage to the lower stage, and the depth dimension of the shelf board is also different In many cases, the types, sizes, and display methods of the products arranged on the shelves of each stage are also different.

Therefore, in order to enhance the lighting effect of the displayed product, it is desired that the irradiation angle of the light emitted from the LED lighting device can be adjusted toward the desired product position or location.

Therefore, as such an angle adjustment method, a line-type LED lamp is inserted into a C-shaped ring body in which a part on the periphery of a lamp holder of an illuminating lamp to be installed on the lower surface side of a product display shelf is inserted and installed at a predetermined position. In addition, a method is disclosed in which a notch groove array is formed on the inner peripheral surface of the C-shaped ring body so that the contour corner portion of the line-type LED lamp engages, and the mounting angle of the line-type LED lamp can be adjusted to a desired angle. Yes. (Cited document 1)
JP 2010-158337 A

By the way, the method of adjusting the angle of the LED lighting apparatus disclosed in Patent Document 1 is unstable for fine adjustment, and instead of a line type LED lamp, a straight tube type LED lighting is used. When changing to a device, it may not be possible.

Therefore, the present invention has been devised in order to solve the above-described problems, and uses an existing lamp holder provided for laying a straight tube type fluorescent lamp on the lower surface side of a product display shelf, and has a simple structure. Both ends of the straight tube type LED lighting apparatus are held using a member that is inexpensive in terms of cost.

It is another object of the present invention to provide an LED lighting fixture holding device for a display shelf that can be variably adjusted to a desired direction by a simple operation of the mounting angle.

In order to achieve the above object, the holding device for a lighting fixture according to the present invention is a first annular covering member mounted on the outer peripheral surface of a straight tube type lighting fixture that is first installed in a space in which a product is stored. When,
A second covering member to be mounted on the outer peripheral surface of the first covering member;
Protrusions are provided on the outer peripheral surface of the first covering member,
The second covering member has a plurality of irregularities formed on the inner peripheral surface thereof opposite to the protrusions on the outer peripheral surface of the first covering member,
Further, a lamp holder is mounted on the outer peripheral surface of the second covering member.

2ndly, the uneven | corrugated | grooved part of the internal peripheral surface of a said 2nd coating member forms a groove | channel in parallel with the longitudinal direction of a lighting fixture.

Third, the cross-sectional shape of the uneven portion on the inner peripheral surface of the second covering member is a rectangle.

Fourth, the recesses or projections formed on the inner peripheral surface of the second covering member are formed at an interval of 8 to 12 degrees with respect to the central axis of the second covering member cross section.

Fifth, at least two protrusions on the outer peripheral surface of the first covering member are provided. Sixth, protrusions on the outer peripheral surface of the first covering member are formed at an acute angle.

According to the first aspect of the present invention, the annular first covering member to be mounted on the outer peripheral surface of the straight tube type lighting apparatus installed in the space in which the product is stored, and the first covering member Constituted by a second covering member to be mounted on the outer peripheral surface, provided with a protrusion on the outer peripheral surface of the first covering member;
The second covering member is formed with a plurality of irregularities on the inner peripheral surface thereof opposite to the protrusions on the outer peripheral surface of the first covering member, and a lamp holder is provided on the outer peripheral surface of the second covering member. By mounting, both ends of the tubular lighting fixture can be held with an easy structure.

In addition, since the straight tube type luminaire can be rotatably held, the angle can be adjusted according to the light distribution characteristic of the LED lighting, and in particular, the luminaire attached to the display shelf of the showcase has a height and width. Even in the case where the directions are different, the adjustment of the light direction can be finely adjusted according to the interval between the concave and convex shapes formed on the first covering member and the second covering member.

Furthermore, even if a display shelf is attached as a structure for installing a straight tube type fluorescent lamp at the initial stage of the product, if the holding structure of the present invention is used, only the holding structure of the lighting fixture can be easily and easily performed. Since it can be exchanged, it is easy to change the LED illumination from the fluorescent lamp.

FIG. 1 shows each component constituting the holding device for a lighting fixture of the present invention and its coupling structure, and 6 in the figure is a cylindrical straight tube type lighting fixture. The same shape is used as a representative example.

Moreover, although not shown in the figure, the lighting fixture 6 may be provided with a lead wire for supplying electricity to one side.

Reference numeral 7 in FIG. 1 denotes a first covering member constituting the present invention, which covers the end portion of the luminaire 6, and a second covering member 8 is further covered on the first covering member 7. It has a structure.

The second covering member 8 has the same annular structure as that of the first covering member 7 in the figure, and a rectangular uneven portion 8a is formed on the inner peripheral surface of the second covering member covering member as shown in FIG. It is formed.

These concave portions or convex portions are formed so that the interval number thereof is 30 to 48 (at intervals of 8 degrees to 12 degrees with respect to the central axis of the covering member cross section).

In FIG. 1, the first covering member 7 is mounted so as to block the end of one side of the lighting fixture 6, but a lead wire may be provided at the end of the lighting fixture. A hole may be formed, or the first covering member 7 itself may have an annular structure.

  The protrusions 7 a formed on the outer periphery of the first covering member 7 have the same shape so as to face the uneven portion 8 a provided on the inner peripheral surface of the second covering member 8.

  Reference numeral 9 in FIG. 1 denotes a lamp holder, which uses two legs 9a to face each other in a bracket shape. When a straight tube type fluorescent lamp is used, the fluorescent lamp is directly sandwiched between the two legs 9a. It is to hold. Further, the holder head 9b is provided with a hole 9c for fixing with screws on the back side of the display shelf 5 of the showcase.

    FIG. 2 shows a structure when holding the cylindrical tubular LED lighting device 6 by combining the lighting device 6, the first covering member 7, the second covering member 8, and the lamp holder 9 described in FIG. 1. Yes.

  The lamp holder 9 is the same as that used when the fluorescent lamp is mounted on the display shelf in the showcase, and the second covering member is sandwiched and held by the two legs 9a, so that the change from the fluorescent lamp to the LED lighting apparatus can be performed. It becomes easy.

It is an expanded view of the components of the holding device of the lighting fixture of the display shelf which shows embodiment of this invention. It is sectional drawing of the coupling | bond part of the 1st coating member and the 2nd coating member which show embodiment of this invention It is a general view of the showcase in which the holding device of the lighting fixture of this invention is mounted.

1 Showcase body 2 Cold air circulation path 3 Cooler (evaporator)
4 blower fan 5 display shelf 6 lighting fixture 7 first covering member 7a protrusion 8 second covering member 8a uneven portion 9 lamp holder 9a foot 9b head 9c screw hole

Claims (6)

On the outer peripheral surface of a straight tube type lighting fixture installed in the space where the product is stored,
An annular first covering member to be attached;
A second covering member to be mounted on the outer peripheral surface of the first covering member;
Protrusions are provided on the outer peripheral surface of the first covering member,
The second covering member has an inner peripheral surface formed with a plurality of concave and convex portions having a shape opposite to the protrusions on the outer peripheral surface of the first covering member, and a lamp holder is provided on the outer peripheral surface of the second covering member. A holding device for a lighting fixture, which is mounted. The uneven part of the inner peripheral surface of the second covering member is
2. The luminaire holding device according to claim 1, wherein a groove is formed in parallel with a longitudinal direction of the luminaire. The holding device for a lighting fixture according to claim 1 or 2, wherein a cross-sectional shape of the uneven portion on the inner peripheral surface of the second covering member is a rectangle. The recesses or projections formed on the inner peripheral surface of the second covering member are formed at intervals of 8 to 12 degrees with respect to the central axis of the second covering member cross section. The holding device of the lighting fixture in any one of Claim 3. The luminaire holding device according to claim 1, wherein at least two protrusions on the outer peripheral surface of the first covering member are formed. 6. The lighting apparatus holding device according to claim 1, wherein the protrusion on the outer peripheral surface of the first covering member is formed at an acute angle.

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