JP2012192059A - Holding device of lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a holding device of a lighting fixture of a display shelf which uses a conventional lamp holder used when installing a straight tube fluorescent lamp on the lower surface side of the merchandise display shelf, has an easy structure, holds both ends of the straight tube fluorescent LED lamp using a resin holder available inexpensively in cost view, and can variably adjust a mounting angle of an LED lamp in a desired direction with an easy operation.SOLUTION: The holding device of a lighting fixture includes: a first circular covering member 7, and installed on an outer peripheral surface of the straight tube fluorescent lamp disposed on the display shelf; and a second covering member 8 installed on the outer peripheral surface of the first covering member 7. On the outer peripheral surface of the first covering member 7, a plurality of concave/convex portions are formed. On the inner peripheral surface of the second covering member, an inside projection facing the concave portion on the outer peripheral surface of the first covering member is provided. On the outer peripheral surface of the second covering member, the lamp holder is mounted.

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 in a showcase having a space for storing and displaying the product while forming a housing by combining heat insulating walls. Involved.

  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. 5 shows an overall view of a multistage open showcase, which is a typical example of a showcase, and particularly shows the arrangement relationship between the storage of the showcase and the display shelves and lighting fixtures in the storage.

In FIG. 5, 1 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, and 3 is The cooler disposed in the cold air circulation path 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 shelf in the showcase. Illumination fixtures for placing the product on the top to make the product bright and attractive are 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.

Moreover, when it changes to a straight tube type LED lighting fixture instead of a line type LED lamp, the case where it cannot respond arises.

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. Display that uses both low-cost components to hold both ends of a straight tube LED lighting fixture and allows the mounting angle to be variably adjusted to the desired orientation with a simple operation. It is providing the holding | maintenance apparatus of the LED lighting fixture of a shelf.

In order to achieve the above object, a lighting device holding apparatus according to the present invention includes an annular first covering member to be mounted on an outer peripheral surface of a straight tube type lighting device that is first placed on a display shelf. And a second covering member mounted on the outer peripheral surface of the first covering member, wherein the first covering member is formed with a plurality of concave and convex portions on the outer peripheral surface, Protrusions having a shape corresponding to the recesses on the outer peripheral surface of the first covering member are provided on the peripheral surface, and a lamp holder is mounted on the outer peripheral surface of the second covering member.

Secondly, the concave and convex portion on the outer peripheral surface of the first covering member is formed with a groove parallel to the longitudinal direction of the straight tube type lighting fixture, and thirdly, the concave and convex portion has a rectangular shape.

Fourthly, the recesses or projections formed on the outer peripheral surface of the first covering member are formed at intervals of 5 to 15 degrees with respect to the central axis of the first covering member cross section.

    Fifth, the second covering member is provided with at least two protrusions on the inner peripheral surface, and sixth, the protrusions on the inner peripheral surface are formed at an acute angle.

  According to the invention described above, the annular first covering member to be mounted on the outer peripheral surface of the straight tube type lighting fixture placed on the display shelf, and the first mounting member to be mounted on the outer peripheral surface of the first covering member. The first covering member is formed with a plurality of uneven portions on the outer peripheral surface, and the inner peripheral surface of the second covering member is a recess on the outer peripheral surface of the first covering member. By providing the protrusions having a shape opposite to the projections, both ends of the projection can be held with respect to the tubular lighting fixture 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 part constituting the holding device for a lighting fixture of the present invention, and 6 is a cylindrical straight tube type LED lighting fixture having the same shape as a normal straight tube type fluorescent lamp. Although representative and not shown in the drawing, a lead wire for supplying electricity may be provided on one side of the lighting fixture 6 in some cases.

Reference numeral 7 denotes a first covering member constituting the present invention. As shown in FIG. 3, an uneven portion 7 a having a rectangular cross section is formed on the outer peripheral surface of the covering member. The number of concave portions or convex portions is 24 to 72, that is, they are formed at intervals of 15 to 5 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 when a lead wire is provided at the end of the lighting fixture, a hole for passing the lead wire is formed. Even if the first covering member 7 itself has an annular structure, it is possible to have the same function.

  1 is a second covering member. In FIG. 1, the structure of the first covering member 7 is used so that the end portion of the lighting fixture 6 can be covered from above the first covering member 7. Since they need to face each other, they have the same annular structure as the first covering member.

  Further, the second covering member 8 is provided with an inner protrusion 8 a having the same shape on the inner peripheral surface of the annular structure so as to face the unevenness provided on the first covering member 7.

  An outer protrusion 8 b is provided on the outer peripheral surface of the second covering member 8 to ensure the holding of the lamp holder 9.

  Reference numeral 9 in FIG. 1 denotes a lamp holder, which uses two legs 9a to face each other in the bracket shape. When a straight tube type fluorescent lamp is used as in the prior art, the fluorescent lamp is directly connected to the two legs 9a. Is of a structure that holds it so as to sandwich it.

Further, the head 9b of the holder is provided with a hole 9c for fixing with screws to 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. It is.

  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 is possible. It becomes easy.

    As shown in FIG. 4, the outer protrusion 8b provided on the outer peripheral surface of the second covering member 8 is in contact with the portion of the lamp holder 9 where the tip of the foot 9a is bent in an L shape. By positioning the two covering members 8, a stable structure that does not slip can be obtained.

It is an expanded view of each component which comprises the holding | maintenance apparatus of the lighting fixture which is embodiment of this invention. It is an oblique view which shows the combined state of the holding | maintenance apparatus of the lighting fixture which is embodiment of this invention. It is sectional drawing which shows the coupling | bond part of the 1st coating member which is embodiment of this invention, and a 2nd coating member. It is a perspective view which shows the 2nd coating | coated member which is embodiment of this invention, and the holding structure of a lamp holder. It is a general view of the multistage type open 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 uneven portion 8 second covering member 8a inner protrusion 8b outer protrusion 9 lamp holder 9a foot 9b head 9c screw hole

Claims (6)

An annular first covering member that is mounted on the display shelf and is mounted on the outer peripheral surface of the straight tube type lighting fixture, and a second covering member that is mounted on the outer peripheral surface of the first covering member. The first covering member is formed with a plurality of concave and convex portions on the outer peripheral surface, and the inner peripheral surface of the second covering member has a shape corresponding to the concave portion of the outer peripheral surface of the first covering member. And a lamp holder is mounted on the outer peripheral surface of the second covering member. 2. The luminaire holding device according to claim 1, wherein the uneven portion on the outer peripheral surface of the first covering member forms a groove in parallel with the longitudinal direction of the straight tube 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 outer peripheral surface of the first covering member is a rectangle. The recesses or projections formed on the outer peripheral surface of the first covering member are formed at intervals of 5 to 15 degrees with respect to the central axis of the first covering member cross section. Item 4. The lighting fixture holding device according to any one of Items 3 to 4.       The lighting device holding device according to claim 1, wherein at least two protrusions are provided on an inner peripheral surface of the second covering member.       6. The luminaire holding device according to claim 1, wherein the protrusion on the inner peripheral surface of the second covering member is formed at an acute angle.

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