JP2012028206A - Structure of reflection section in lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure of a reflection section in a lighting fixture capable of restraining cost of a reflecting plate and easily mounting the reflecting plate on the lighting fixture body and forming a mounting state with an excellent appearance and style without having any gap.SOLUTION: The reflecting plate 3 is made of a resin reflecting plate with a planar shape for making light diffuse and reflect by a reflecting surface 3a, and both ends of the reflecting plate 3 are held on the lighting fixture body 2 in a positioned state by elastically coming in contact with inside a pair of hooking recessed sections 5, 5 on a side of the lighting fixture body 2 by elastic restoring force of the reflecting plate 3, while the reflecting plate 3 is elastically bent and deformed in a curved state projected upward by pushing both ends so as to face each other.

Description

  The present invention relates to a structure of a reflecting portion in a lighting fixture.

  As a structure for attaching a reflector to a luminaire main body to which a light source lamp such as a straight tube fluorescent tube is attached, a specular reflection type metal reflector made of a bent product that has been bent into a predetermined shape in advance is used. 2. Description of the Related Art Conventionally, a structure in which the reflecting plate is fixed to a lighting fixture body with screws or the like has been provided.

JP 2009-176532 A

  However, in a structure in which a reflector made of a metal bending molded product as described above is attached to the luminaire main body, there is a problem that the cost of the reflector is high.

  Also, in attaching the reflector, the reflector must be screwed while supporting the reflector in a predetermined position on the luminaire body, and the reflector is not always easy to attach to the luminaire body. There is also.

  Furthermore, when the reflector is attached, a play is provided between the reflector and the luminaire main body so that the reflector can be smoothly fitted into the luminaire main body. There is also a problem that it appears in the appearance and may deteriorate the appearance.

  In view of the above-described problems, the present invention can keep the cost of the reflector low, and can easily attach the reflector to the luminaire main body. It is an object of the present invention to provide a structure of a reflecting portion in a lighting fixture that can form a good mounting state.

Said subject is equipped with the metal lighting fixture main body to which a light source lamp is attached, and a reflecting plate,
The reflecting plate is made of a resin reflecting plate having a planar shape in which the reflecting surface diffuses and reflects light, and can be elastically deformed in a curved shape by pressing both ends thereof in a facing direction. In a state where the curved elastic deformation is caused, both ends thereof are elastically contacted by the elastic restoring force of the reflecting plate in the latching recesses of the pair of the lamps of the luminaire body. The lighting fixture body is held in a positioning state, and in the holding state, the light from a light source lamp attached to the lighting fixture body is directly received and diffused and reflected. This is solved by the structure of the reflecting portion in the lighting fixture (first invention).

  In this structure, the reflector has a planar shape in a natural state before being attached to the luminaire body, and the reflecting surface is made of a resin reflector that diffuses and reflects light. The cost of itself can be kept low.

  Moreover, the reflecting plate is elastically deformed in a curved shape by pressing both ends in the facing direction, and the both ends are elastically restored in the latching recesses of the pair of luminaires. If it is made to contact elastically by force, it can be positioned and held with respect to the luminaire main body, so that the reflector can be easily attached to the luminaire main body.

  Even when this reflector is finally screwed to the luminaire main body, in the screwing operation, the reflector is held in a positioning state by elastic contact with the luminaire main body. The screwing operation can be performed without supporting, and the mounting operation of the reflector can be facilitated.

  In addition, in this manner, the reflecting plate is configured such that both end portions thereof elastically contact with the latching recesses of the pair of the lamps of the lighting fixture body by the elastic restoring force of the reflecting plate. Therefore, this elastic contact action prevents a gap from being formed between the reflecting plate and the luminaire main body, so that a good appearance state can be formed.

  1st invention WHEREIN: In the said lighting fixture main body, the surface part extended outside, without being concealed by the said resin-made reflecting plates from each latching recess, consists of a specular reflective surface, and was attached to the lighting fixture main body. It is preferable that the light from the light source lamp is directly received and the light is specularly reflected (second invention).

  In this case, in addition to the diffuse reflection by the resin reflector, mirror reflection by the luminaire main body is also performed, and the reflection performance can be enhanced.

  Since the structure of the reflecting part in the lighting fixture of the present invention is as described above, the cost of the reflecting plate can be kept low, and the reflecting plate can be easily attached to the lighting fixture body. In addition, it is possible to form an attachment state with a good appearance without gaps.

FIG. 1A is a sectional side view, FIG. 2B is a sectional side view with a reflecting plate removed, and FIG. 3C is an enlarged sectional side view of a main part in an exploded state. . Fig. (A) is an enlarged cross-sectional side view of the main part with the reflection plate attached, Fig. (B) is an enlarged cross-sectional side view of the main part showing the inclination angle of the specular reflection surface, and Fig. (C) is a reflection state of light by the specular reflection surface. FIG. FIGS. 4A to 4C are sectional side views sequentially showing a method of attaching the reflector and the straight fluorescent tube together with FIGS. FIGS. (D) to (f) are sectional side views sequentially showing a method of attaching the reflector and the straight fluorescent tube together with FIGS.

  Next, embodiments of the present invention will be described with reference to the drawings.

  The structure of the reflecting portion in the lighting apparatus of the embodiment shown in FIGS. 1 and 2 is applied to a ceiling-embedded lighting apparatus, where 1 is a ceiling plate, 2 is a lighting apparatus body, 3 is a reflecting plate, 4 Is a straight tube fluorescent tube as a light source lamp.

  As shown in FIG. 1 (b), the reflecting plate 3 is made of a resin reflecting plate having a rectangular planar shape in which the reflecting surface 3a diffuses and reflects light. As shown in FIG. By pressing both ends in the width direction, that is, the sides of both sides in a direction facing each other, it is possible to elastically deform in a curved shape that is convex upward. In the deformed state, the side portions of both sides of the reflectors are placed in the pair of “<” shaped latching recesses 5 and 5 provided on the side of the lighting fixture body 2. Are elastically abutted by the elastic restoring force of the light fixture and are held in the lighting fixture body 2 in the positioning state, and in this holding state, light directly received from the straight fluorescent tube 4 attached to the lighting fixture main body 2 is received. Thus, the light is diffused and reflected for illumination.

  And in the lighting fixture main body 2, as shown to FIG. 2 (a), the surface parts 6 and 6 extended outside from each latching recess 5 without being hidden by the resin-made reflecting plates 3 are specular reflective surfaces, for example, It is composed of a reflective surface made of a highly reflective coated steel plate having a reflectivity higher than the usual 75%, and the specular reflective surfaces 6 and 6 are attached to the luminaire main body 2 as shown in FIG. The light is directly received from the straight tube-type fluorescent tube 4 and the light is specularly reflected to perform illumination.

  Note that the angle α of the specular reflection surface 6 is related to the straight fluorescent tube 4 that is a light source lamp, and as described above, receives light from the straight fluorescent tube 4 directly for illumination. Needless to say, it is set within an angular range where reflection can be performed.

  The above-described resin reflector 3 may be attached by various methods. If an example of the attachment method is given, first, as shown in FIGS. In the state where one side portion of the resin reflector 3 is brought into contact with one of the latching recesses 5 of the lighting fixture body 2, the intermediate portion in the width direction of the reflector 3 is pushed up from below. Then, as shown in FIG. 3 (c), it is elastically deformed into an upwardly convex curve, and as shown in FIG. 4 (d), the other side part of the reflector 3 is The light fixture body 2 is fitted into the other retaining recess 5 using the elastic restoring force of the reflector 3. In this embodiment, finally, the central portion in the width direction of the reflector 3 is illuminated with the screw 7. If it attaches to the instrument main body 2, the attachment of the reflecting plate 3 is completed. Thereafter, the straight tube fluorescent tube 4 may be attached to the luminaire main body 2 as shown in FIGS.

  In the above structure, the reflecting plate 3 has a planar shape in a natural state before being attached to the luminaire main body 2, and the reflecting surface is made of a resin reflecting plate that diffusely reflects light. The cost of the reflector itself can be kept low.

  In addition, the reflecting plate 3 presses the side portions of the both sides in the direction of facing each other and elastically deforms the side portions of the both sides of the lighting fixture 2 so as to be elastically deformed in a convex shape. If it is made to contact elastically by the elastic restoring force of the reflecting plate 3 in the latching recesses 5 and 5 of the pair of rivets, the lighting fixture body 2 can be brought into a positioning and holding state. As described above, the reflector 3 can be easily attached to the luminaire body 2 as described above.

  Even when the reflector 3 is finally fixed to the luminaire main body 2 with the screws 7, the reflector 3 is held in a positioning state by elastic contact with the luminaire main body 2 in the screwing operation. Therefore, the screwing operation can be performed without manually supporting the reflecting plate 3, and the mounting operation of the reflecting plate 3 can be facilitated.

  In addition, the reflecting plate 3 is elastically deformed by the elastic restoring force of the reflecting plate 3 at the side portions of the both sides of the reflecting plate 3 in the latching recesses 5, 5 of the lighting device body 2. Since it is configured to abut, this elastic abutting action prevents a gap from being formed between the reflector 3 and the luminaire main body 2, and forms an excellent appearance appearance. Can do.

  Moreover, in this embodiment, in the lighting fixture main body 2, the surface parts 6 and 6 extended outward from each latching recess 5 and 5 without being concealed by the resin reflector 3 are made of a specular reflection surface. Since the light from the light source lamp attached to the luminaire main body is directly received and the light is specularly reflected, the specular reflection by the luminaire main body 2 is also performed in addition to the diffuse reflection by the resin reflector 3. It is possible to improve the reflection performance.

  Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. For example, in the above-described embodiment, the structure of the reflection portion in the lighting device for a straight tube fluorescent tube is shown, but the present invention can also be applied to a lighting device for a light bulb. Moreover, although the case where it applied to the ceiling embedded type lighting fixture was shown in the said embodiment, it is also possible to apply to a ceiling direct attachment type lighting fixture, and a wall mounting type and a floor surface mounting type lighting fixture. It is also possible to apply to the above. The direction in which the reflecting plate is bent may be determined depending on what kind of illumination is performed, and may be bent in various directions.

2 ... Luminaire body 3 ... Resin reflector 3a ... Diffuse reflection surface 4 ... Straight fluorescent tube (light source lamp)
5 ... Hanging recess 6 ... Specular reflection surface

Claims (2)

A metal lighting fixture body to which the light source lamp is attached and a reflector are provided.
The reflecting plate is made of a resin reflecting plate having a planar shape in which the reflecting surface diffuses and reflects light, and can be elastically deformed in a curved shape by pressing both ends thereof in a facing direction. In a state where the curved elastic deformation is caused, both ends thereof are elastically contacted by the elastic restoring force of the reflecting plate in the latching recesses of the pair of the lamps of the luminaire body. The lighting fixture body is held in a positioning state, and in the holding state, the light from a light source lamp attached to the lighting fixture body is directly received and diffused and reflected. The structure of the reflection part in the lighting fixture.   In the luminaire main body, a surface portion extending outwardly from each latching recess without being hidden by the resin reflector is a specular reflection surface, and light from the light source lamp attached to the luminaire main body. The structure of the reflection part in the lighting fixture according to claim 1, wherein the light is directly received and the light is specularly reflected.

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