JPH0138321B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a lighting device equipped with a straight tube light source, and in particular to an improvement in which the mounting position and mounting angle of a reflector can be arbitrarily selected on the outer periphery of the straight tube light source in the longitudinal direction. Regarding the configured device.

Conventionally, for example, a lighting device equipped with a straight tube fluorescent lamp has a reflector fixed to the main body of the lighting device, a socket fixed near both ends of the main body of the lighting device, and a fluorescent lamp mounted between the sockets. are doing.

However, with this structure, the reflector is fixed to the lighting fixture body, so the lighting characteristics are limited.
It is not possible to obtain multiple types of lighting functions with a single lighting device.

In addition, in conventional lighting devices that illuminate walls, sockets for attaching light sources are fixed on both sides of the lighting device body, and the reflector can be rotated within a range of, for example, about 60 degrees with respect to the lighting device body. It is structured as follows.

For example, as shown in FIG.
A reflecting mirror hanging body 2 having angle adjustment scales is provided on both sides of the mirror, and a reflecting mirror 3 is mounted and supported on the reflecting mirror hanging body 2. The reflecting mirror 3 is configured to rotate.

However, the illumination characteristics of the illumination device of the same structure are limited by the shape of the reflecting mirror, and the illumination direction can only be varied, making it suitable for wall illumination, but has the disadvantage that it cannot be used widely for other purposes.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an illumination device that has variable illumination characteristics and has many types of illumination functions in one device.

The present invention will be explained below with reference to FIGS. 2 to 13.

FIG. 2 is a schematic diagram of a lighting device according to the present invention. In Fig. 2, 11 is the lighting equipment body;
2 is a support pipe supported downward on both sides of the lighting fixture body 11; 13 is a socket for attaching a light source;
14 is a straight tube light source attached to the socket 13, for example a fluorescent lamp; 15 and 16 are reflector supporting arms located on both sides of the straight tube light source 14; The light source is supported by rotatable support arm mounts 17 and 18 (the rotary mechanism will be described later), which are located at right angles to the longitudinal direction of the light source. Reflection plates 19 and 20 are rotatably mounted between the reflection plate support arms 15 and 16 (rotation mechanism will be described later), and are configured to have a width larger than the outer diameter of the light source.

Next, the rotation mechanism of the reflector support arms 15 and 16 is adjusted to the second position.
The figure and FIG. 3 will be explained. Reference numeral 21 denotes a support body screwed onto the tip of the support pipe 12, and has projections and depressions for hooking formed on one outer side thereof. 22 is a cylindrical body provided on the outside of the support body 21 via a coil spring 23, and 24 is a socket attachment body provided on the outside of the cylindrical body 22, which has projections and depressions for latching formed on one side of the inside. Reference numerals 17 and 18 denote support arm attachment bodies which are constructed to be held between the support body 21 and the socket attachment body 24, and have projections and depressions for latching formed on both surfaces.

Numerals 27 and 28 are support bolts that are screwed across the support body 21, the cylindrical body 22, and the socket attachment body 24, and by adjusting the support bolts 27 and 28, reflector support arms 15 and 16 are formed. The support arm attachment bodies 17, 18 are configured to be rotatable.

Next, the rotating mechanism of the reflectors 19 and 20 supported between the reflector support arms 15 and 16 will be explained with reference to FIG. Reference numeral 29 denotes a reflector fixing body fixedly provided at the tips of the reflector support arms 15 and 16, and has projections and depressions for latching on its inner surface. Reference numeral 30 denotes a reflector mounting body, which has projections and depressions for latching corresponding to the projections and depressions of the reflection plate fixing body 29. 31 is a reflection plate 19, 2
Reflector mounting body 30 and reflector fixing body 29 having 0
It is a tightening bolt for integrally supporting the reflector plate 19, by adjusting the tightening bolt 31.
20 can be rotated.

Next, the reflector support arm 15 configured as described above,
16 and the reflectors 19 and 20 supported by the reflector support arms 15 and 16, the reflector 1
You can freely adjust the mounting position and angle of 9 and 20,
An embodiment of a structure that obtains various illumination functions by varying the illumination characteristics will be described with reference to FIGS. 5 to 13.

FIG. 5 shows a structure in which reflective plates 19 and 20 are supported obliquely above the light source 14, and is suitable for general office lighting.

FIG. 6 shows a structure in which reflective plates 19 and 20 are bent and supported flat above the light source 14, and the lighting equipment main body 1
1 is installed on the ceiling, etc., and is suitable for general office lighting.

FIG. 7 shows a structure in which reflective plates 19 and 20 are shaped like a shade above the light source 14, and is suitable for lighting in warehouses, factories, etc.

FIG. 8 shows a structure in which reflective plates 19 and 20 are arranged in an eight-shape above the light source 14, with a deep shade, which makes the ceiling surface bright to some extent and prevents glare caused by direct viewing of the light source, making it suitable for store lighting. .

FIG. 9 shows a structure in which reflective plates 19 and 20 are arranged in parallel on both sides of the light source 14, and similar to the structure shown in FIG. 8, the ceiling surface can be brightened to some extent and glare caused by direct viewing of the light source can be prevented. suitable for

FIG. 10 shows so-called indirect lighting in which reflectors 19 and 20 are arranged in an inverted chevron shape on the lower surface of the light source 14.
You can get soft lighting.

Fig. 11 shows semi-indirect lighting in which reflectors 19 and 20 are arranged in an inverted eight shape with a slight gap between them on the lower surface of the light source 14, and similar to Fig. 10, it is possible to obtain soft illumination and some shading. You can get a strong lighting effect.

FIG. 12 shows a wall illumination in which reflective plates 19 and 20 are arranged from the top surface of the light source 14 to the right side,
Suitable for lighting product displays, etc.

FIG. 13 shows a structure in which the lighting device is supported in the middle of the side wall of a building, and the reflecting plates 19 and 20 are supported upright in front of the light source 14, which can provide the effect of so-called balanced lighting.

As described above, the present invention supports two reflector support arms located on both sides of a straight tube light source so as to be rotatable in a direction perpendicular to the longitudinal direction of the light source, and between the support arms at both ends of the light source. The structure is such that two reflectors larger than the outer diameter of the light source are rotatably mounted, so the mounting position and angle of the two reflectors can be freely selected around the light source. It is possible to obtain a wide variety of illumination functions as illustrated in FIGS. 5 to 13 with a single lighting device, which has great utility value.

[Brief explanation of drawings]

Fig. 1 is a side view showing a rotating mechanism of a reflecting mirror in a conventional lighting device, Fig. 2 is a schematic diagram of a lighting device according to the present invention, Fig. 3 is a plan view of the main part in Fig. 2, and Fig. 4 1 is an enlarged sectional view of the main part showing the mounting structure of the reflector support arm and the reflector, and FIGS. 5 to 13 show the mounting position of the reflector by rotating the reflector support arm and the reflector.
FIG. 6 is a diagram showing an example in which the mounting angle is changed. 11...Lighting device main body, 12...Support pipe, 14...Straight tube light source, 15, 16...Reflector support arm, 17, 18...Support arm attachment body, 19, 2
0...Reflector.

Claims (1)

[Claims] 1 located on both sides of the straight tube light source 14, each supporting two reflector support arms 15, 16 rotatably in a direction perpendicular to the longitudinal direction of the light source 14;
Between 5 and 16 and 15 and 16, reflective plates 19 and 20 having a width larger than the outer diameter of the light source 14 are rotatably mounted, and the mounting positions and angles of the reflective plates 19 and 20 with respect to the light source 14 are adjusted. 1. A lighting device characterized in that it is configured to be able to perform various lighting functions and to obtain a wide variety of lighting functions.