JPS6030003A - Illuminator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Technical field of invention] The present invention relates to a lighting fixture including a plurality of lamp bodies.

[Technical background of the invention and its problems]

2. Description of the Related Art Generally, some lighting equipment installed on a ceiling or the like includes a plurality of lighting bodies each having a straight tube lamp such as a fluorescent lamp.

Conventionally, this type of lighting equipment has a structure in which all lamp bodies are fixedly arranged with their light emitting apertures aligned in a fixed direction, and are used exclusively for direct lighting or indirect lighting. In other words, all the light bodies of the lighting equipment are provided with the light emitting opening facing the indoor space for direct illumination, and all the light members are provided with the light emitting aperture facing the wall for direct illumination. It is used for lighting.

Therefore, conventionally, it is not possible to share lighting fixtures for direct lighting and lighting fixtures for indirect lighting, so it is necessary to prepare dedicated ones depending on the purpose.

Furthermore, when changing the form of lighting after the lighting fixture is attached to a ceiling or the like, there is a problem in that it is necessary to remove and replace the entire lighting fixture, which requires 91 steps and is uneconomical.

Note that there are conventional lighting fixtures that allow you to change the direction of the light emitting aperture by rotating the light body, but this is a single type with one set of light bodies; The body was set up m
-J! This point is completely taken into account in A-muben.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and is highly versatile and economical, allowing the light distribution of multiple sets of lamps to be controlled arbitrarily, and direct lighting, indirect lighting, or a combination of both to be selected and changed. The company provides lighting equipment.

[Summary of the invention]

The lighting fixture of the present invention has a plurality of lamp bodies in which straight tube lamps are arranged in an elongated body having an opening on the negative side, which are rotatably arranged side by side between opposite sides of a mouth-shaped fixture body. By rotating each lamp body, the direction of the light emitting aperture can be changed. In other words, direct lighting is achieved by aligning the light emitting apertures of all light bodies facing downward, indirect lighting is not achieved by aligning the light emitting apertures of all light bodies facing upward, and the light emitting light of each light body is aligned. Any desired light distribution can be obtained by arranging the apertures in any direction and combining them.

[Embodiments of the invention]

An embodiment of the present invention illustrated in the drawings will be described below.

The drawings show a ceiling hanging type lighting fixture using a fluorescent rung as an embodiment of the present invention, and FIG. 1 is a perspective view;
@Figures 2 to 4 are drawings each showing a state in which direct illumination is performed.

In the figure, 1 is the instrument body, and this instrument body 1 is formed as a rectangular frame made of a rectangular metal cylinder. Instrument body 1
Between a pair of mutually opposing sides Ja+Ja, a plurality of, for example, four lamp bodies 2 are arranged parallel to each other and spaced apart from each other, and are installed on sides 1*, 1m so as to rotate about an axis. ing. To explain the lamp body 2, reference numeral 3 in the figure is an elongated body made of an elongated rectangular tube, and a light projection opening 4 is formed along the longitudinal direction on the side surface of this elongated body. The elongated body 3 has the same length f as the distance between the sides 1m+1a of the instrument body 1.

Socket supports 6 holding sockets 5 are attached to opposite ends of the elongated body 3 at both ends. Elongated body 3
A straight tube type fluorescent gin f7 is arranged along the longitudinal direction as a straight tube type rung inside the , and the fluorescent lamp has a socket with a cap J provided at both ends thereof held in each socket support 6. 5 and is supported. Inside the elongated body 3, there is an elongated reflecting plate 9 on the side □ facing the light emitting aperture 4.
are provided along the longitudinal direction and are attached to the elongated body 3 by means of a fitting 10. The lamp body 2 configured in this manner is arranged horizontally between the sides 1a and 1b of the appliance main body 10, and both end walls of the elongated body 3 are in contact with the side walls of the sides J&'+JIL. A support shaft 1 is provided between the end wall of one end of the elongated body 3 and the nt11 wall of one side 1a, and between the end wall of the other end of the elongated body 3 and the side wall of the other side 1a.
1 is inserted through the elongated body 3 along its central axis. A retainer ring 12 is fitted to each end of the support shaft 11, and the retainer ring 12 abuts against each inner surface of the end wall of the elongated body 3 and the side wall of the side portion 1a to prevent the support shaft 11 from coming off. I'm holding it down. Therefore, both ends of the elongated body 3 support Th
l+ J Rotatably supported by J and side 1 a, J
a, and is provided so as to be able to rotate in a vertical plane about its axis. By rotating the elongated body 3, the direction of the light projection aperture 4 can be changed. Thus, the elongated body 3 is normally held stopped so as not to rotate due to the frictional contact of both end walls with the side walls of the sides Ja+Ja. When rotating the elongated body 3, the elongated body 3
is rotated by hand against frictional force. In this way, each lamp body 2 is provided in the appliance body 1. In addition, each lamp body 2 is provided inside the other side portions 1b, 1b of the appliance body 1 that face each other.
Four ballasts 13 are provided to be incorporated into the fluorescent lamp lighting circuit, and these ballasts 13 are connected to sockets 5 provided in each lamp body 2 via lead wires (not shown). are doing. Further, in the figure, reference numeral 14 denotes a power cord made of a curled cord provided outside the instrument main body 1, and this power cord 14 is connected to a ballast 13 provided within the side fa+Ja.

As shown in FIG. and use it.

Therefore, by rotating each lamp body 2 and changing the direction of the light emitting aperture 4, this lighting fixture can select between direct illumination and indirect illumination. In the case of direct illumination, as shown in FIGS. 2 to 4, the elongated bodies 3 in all the lamp bodies 2 are rotated so that the light emitting openings 4 are located on the lower side, and each elongated body is The light emitting openings 4 of the body 3 are directed downward. When the fluorescent lamp 7 provided in each lamp body 2 is turned on, a part of the light from the fluorescent lamp 7 is directly transmitted to the light emitting opening 4 of the elongated body 3.
The remaining light is reflected by the reflector 9 and then projected to the outside from the light projection aperture 4, respectively. In this case, since the light emitting openings 4 of the elongated body 3 in each lamp body 2 are all aligned downward, the light from the fluorescent lamp 2 of each lamp body 2 is directed downward from the elongated body 30 and the light emitting aperture 4 of each lamp body 2. Light is projected towards the target. That is, all of the light from each fluorescent light f7 is directly projected toward the indoor space, thereby providing direct illumination.

In addition, in order to provide indirect illumination, as shown in FIG. Align 4 with each facing upward. When the fluorescent lamp provided in each lamp body 2 is turned on, the fluorescent light is projected outward through the upwardly directed light projection opening 4 of the elongated body 3 in each lamp body 2. . That is, the light from the fluorescent run f7 of each lamp body 2 is projected toward the ceiling surface, reflected by the ceiling surface, and then projected into the indoor space for indirect illumination.

Furthermore, by individually and arbitrarily setting the direction of the light projection opening 4 of the elongated body 3 of each lamp body 2, the light distribution by the fluorescent lamp 1 of each lamp body 2 can be arbitrarily controlled. For example, as shown in FIGS. 1 and 6, among the four sets of lamps 2 arranged side by side on the appliance body 1, the two sets of lamps 2 located in the center have an elongated body 30 and a light projection opening 4. 2 facing downward and located on both sides
The lighting bodies 2 of the set have the light emitting openings 4 of the elongated bodies S directed upward.

Therefore, the two sets of lamps 2 on the center side project the light from the fluorescent run f7 downwards for direct illumination, and the two sets of lamps 2 on both sides project the light from the fluorescent rung 7 upwards. It provides indirect lighting. In this way, a light distribution that combines direct illumination and indirect illumination can be obtained. Note that the number and position of each lamp body 2 for direct illumination and indirect illumination can be arbitrarily set and combined, and the light distribution can be arbitrarily controlled by this combination. Further, the direction of the light emitting opening 4 of the elongated body 30 is not limited to upward and downward, but the light emitting aperture 4 may be oriented laterally at a predetermined angle.

In this way, the lighting equipment of the present invention can be used by selecting direct lighting, indirect lighting, or arbitrary light distribution depending on the purpose, and adjusting the direction of the light projection opening 4 of the elongated body 3 for each lamp body 2. Set. Moreover, the form of illumination can be changed by changing the direction of the light emitting opening 4 of the elongated body 3 in each lamp body 2 as needed while the lighting equipment is in use. In addition, 5 details, ・
The elongated body 3 can be easily rotated by hand to change its direction.

In addition, although four sets of lamp bodies are provided in the above-mentioned embodiment in the lighting fixture of the present invention, the present invention is not limited to this, and a plurality of lamp bodies may be provided. In the example, a reflector is provided on the elongated body, but the reflector is not necessarily required.This lighting equipment company is not limited to the ceiling hanging type, but also the ceiling-embedded type where the fixture is embedded inside the ceiling. It's okay.

[Effect of lightening]

As explained above, the lighting equipment of the present invention can control the light distribution of the lamp as desired by rotating the plurality of sets of lighting bodies arranged side by side on the equipment body and changing the direction of the light emitting aperture. Either illumination or a combination of direct illumination and indirect illumination can be selected. Therefore, 1
The lighting fixture can be commonly used for various lighting modes, and the lighting mode can be changed during use.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of the lighting device of the present invention; Fig. 1 is a perspective view, Fig. 2 is a bottom view showing a state in which direct illumination is performed, and Fig. 3 is an enlarged longitudinal section taken along the line II-III in Fig. 2. Figure 4 is an enlarged cross-sectional view taken along the line ■-■ in Figure 2, Figure 5 is an enlarged cross-sectional view showing a state with indirect lighting, and Figure 6 shows a state in which direct and indirect lighting are combined. FIG. 1... Fixture body, 1a... Side part, 2... Light body, 3
. . . Elongated body, 4. Light projection opening, 5. Socket, 6. Socket support, 7. Fluorescent lamp, 9.
...Reflector, 11...Support shaft, 13...Stabilizer, 1
4... Power cord, 15... String-shaped body for hanging.

Claims (1)

[Claims] It is equipped with a device main body provided in the shape of a mouth, and a plurality of lamp bodies each having straight tube lamps arranged in an elongated body having a light emitting opening on one side along the longitudinal direction, and these lamp bodies are connected to the device main body. A lighting fixture that is rotatably installed in parallel and spaced apart between opposite sides of.