JP2548037Y2 - lighting equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture.

[0002]

2. Description of the Related Art FIGS. 8 to 11 show an example (first conventional example) of a conventional lighting fixture. This lighting fixture has a long fluorescent lamp 1, and the lamp 1 has a long length. The cross section of the instrument perpendicular to the tube axis is substantially square.

[0003] The four surfaces forming a substantially square instrument cross section are:
An appliance main body 2 having a U-shaped cross section and a substantially flat reflecting plate 3 attached to the opening side of the appliance main body 2 are provided. Is built-in. Further, sockets 4 for mounting the lamps 1 are fixedly attached to the reflecting plate 3 side of the fixture body 2 at both ends in the longitudinal direction thereof. The center surface of the mold is configured as a mounting surface 5, and the mounting surface 5 is mounted on a structure 6 such as a ceiling.

FIGS. 12 and 13 show another example of a conventional lighting fixture (second conventional example). This lighting fixture has a long fluorescent lamp 1 and the lamp 1 is provided. The instrument cross section perpendicular to the pipe axis is formed in a substantially triangular frustum shape,
Both ends on the bottom side (ceiling surface side) are bent so as to have a rising surface substantially perpendicular to the bottom.

[0005] The cross section of the substantially triangular truncated pyramid-shaped device has a reflector plate 3 opened to the bottom side, and sockets 4 fixedly attached to both ends in the longitudinal direction and arranged in the opening. And the device main body 2. A lighting part such as a discharge lamp lighting device is attached to the reflector 3 side of the fixture body 2, the fixture body 2 is used as a mounting surface 5, and the mounting surface 5 is mounted on a structure 6 such as a ceiling. Things.

[0006]

However, in the first and second conventional examples configured as described above, as shown in FIGS. 9, 11 and 13, the lamp is disposed on the mounting surface 5 side of the lamp 1. The light from the lamp 1 is blocked by the reflected reflector 3, and a shadow 7 is generated on the surface of the structure 6 on the side of the fixture body 2. Since the distance to the tip of the lamp 1 is constant, depending on the height of the light shielding portion 6a, as shown in FIG.
There is a drawback that there is a case where can be seen. Further, since the lamp 1 is fixedly mounted, there is a disadvantage that the light distribution of the lighting equipment cannot be changed.

The present invention has been made in view of the above-mentioned background, and an object of the present invention is to make it difficult for a shadow on a side of a lighting fixture to be generated, and to change a light distribution of the lighting fixture. It is an object of the present invention to provide a lighting fixture in which a plurality of surfaces of a lighting fixture outer shell can be selected as mounting surfaces for the lighting fixture.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a lighting apparatus having a long lamp 1, wherein the cross section of the lighting apparatus in a direction perpendicular to the tube axis of the lamp 1 is substantially triangular. The lamp 1 is configured to be rotatable around the cross section, and the mounting surface 5 of the lighting fixture is freely changeable to any of the three surfaces forming the substantially triangular fixture cross section. It is.

[0009]

According to the lighting device of the present invention, a lighting device having a long lamp 1 has a substantially triangular cross section perpendicular to the tube axis of the lamp 1, so that the light from the lamp 1 is reflected. It is not blocked by the plate 3 and the shadow 7 is less likely to occur on the structure 6 on the mounting surface 5 side of the lighting fixture. Further, since the lamp 1 is configured to be rotatable around the cross section and the mounting surface 5 of the lighting fixture can be freely changed to any of the three surfaces forming the substantially triangular fixture cross section, the reflector 3
And the height of the lamp 1 with respect to the mounting surface 5 can be changed to change the light distribution of the luminaire. In the case of indirect lighting, the lamp 1 is rotated about the cross section, The height of the lamp 1 can be changed so that the direct light of the lamp 1 is blocked by the light shielding portion 6a, so that the lamp 1 can be made invisible.

[0010]

1 to 5 show a first embodiment of the present invention. This luminaire has a long fluorescent lamp 1, and the cross section of the luminaire in the direction perpendicular to the tube axis of the lamp 1 is formed into a substantially right-angled isosceles triangular shape. The socket 4 is rotatably attached to a substantially triangular end plate 8 attached to both ends in the longitudinal direction of the appliance.

The three surfaces of the lighting fixture having a substantially right-angled isosceles triangular cross section are provided with a mounting hole and a power line hole in a knockout manner so that each of the three surfaces can be used as both a reflector and a mounting surface. By knocking out one of the knockouts with a tool such as a screwdriver, one of the knockouts is used as the mounting surface 5, and the other two surfaces are used as the reflector 3.

The end plate 8 has a screw hole 8a at a substantially central portion thereof, and has two conductive grooves 8b provided concentrically around the screw hole 8a.

The socket 4 is provided with a through hole 4a at one end, and a holding portion for the lamp 1 at an end opposite to the through hole 4a. And two conductive pins 4b are provided at positions opposed to the conductive grooves 8b, respectively.

In the luminaire thus constructed, the end plate 8 is attached to the end of the luminaire having a substantially right-angled triangular cross section, and the conductive pin 4b of the socket 4 is inserted into the conductive groove 8a and fixed with the screw 9. And assembled.

As described above, in the luminaire according to the present invention, since the cross section of the luminaire in the direction perpendicular to the tube axis of the long lamp 1 is substantially triangular, the light from the lamp 1 is not blocked by the reflector 3. Shadows are less likely to be formed on the structure 6 such as the ceiling on the mounting surface 5 side, and the fitting to a corner formed by the ceiling and the wall surface is good. Further, since the lamp 1 is configured to be rotatable around the cross section and the mounting surface 5 of the lighting fixture can be changed to any of the three substantially triangular surfaces, the position of the lamp 1 with respect to the reflector 3 changes. Then, the height of the lamp 1 with respect to the mounting surface 5 also changes, so that the light distribution of the lighting fixture can be changed.
As shown in FIG. 3, the lamp 1 is rotated around the above-mentioned cross section so that the direct light of the lamp 1 is blocked by the light shielding portion 6a.
By changing the height, the lamp 1 can be made invisible.

FIGS. 6 and 7 show a second embodiment of the present invention. The difference from the first embodiment is that an outer casing portion having a substantially triangular cross section is provided at a corner thereof. The present embodiment is configured by a corner body 10 to be disposed and three plate bodies 11 having the same dimensions, and the other configuration is the same as that of the first embodiment.

The corner body 10 is disposed at three corners of a substantially triangular shape and has a substantially L-shaped cross section, one of which has a right angled corner and the other two have an acute angled cross section. The corner body 10 having an acute angled cross section is formed such that one side of the L-shape is formed longer than the other side, and in a state combined with the plate body 11, a long side is formed on the hypotenuse side of the substantially right triangle. Are provided, and corner bodies 1 facing each other on three sides of a substantially triangular surface
The distance d between the zero grooves 10a is formed equal.

The three plate bodies 11 are formed to have the same dimensions including the width dimension d. One of them is provided with a mounting hole, a power supply line through hole, and the like, and the other two are formed as described above. It is used as a reflector without any holes.

The corner body 10 and the plate body 11 configured as described above are provided with grooves 10 provided on both sides of the three corner bodies 10.
The three plate bodies 11 are inserted between "a" to form an instrument outer section having a substantially right-angled isosceles triangular cross section, and end plates 8 are attached to both ends thereof to assemble.

With this configuration, the first
In the case where the same effect as that of the embodiment is obtained and the mounting surface is to be changed, the end plate 8 is removed and the mounting surface 5 is removed.
Since the plate 11 on the reflection side and the plate 11 on the reflection surface side can be exchanged, there is no need to provide a mounting hole or the like in the plate 11 on the reflection surface side.

In each of the above embodiments, an example has been described in which the cross section of the luminaire is a substantially right-angled isosceles triangle. However, the present invention is not limited to this, and the present invention is not limited to this. It may be shaped. Further, the shape may be substantially triangular as a whole, and the corner may be chamfered.

[0022]

As described above, in the lighting fixture of the present invention, the lighting fixture having a long lamp is used.
Since the cross section of the fixture perpendicular to the tube axis of the lamp is substantially triangular, light from the lamp is not blocked by the reflector, and shadows are less likely to occur on the mounting surface. Further, the lamp is configured to be rotatable around the cross section, and the mounting surface of the lighting fixture can be freely changed to any of three surfaces forming the substantially triangular fixture cross section. And the height of the lamp relative to the mounting surface also changes, so that the light distribution of the luminaire can be changed. Even when used for indirect lighting, the lamp is rotated around the cross section to change the lamp height. To make the lamp invisible.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of a main part of the above.

FIG. 3 is a side view of a main part of the above.

FIG. 4 is a side view of a main part when used for indirect lighting according to the embodiment.

FIG. 5 is a side view of a relevant part in a different mounting state when used for indirect lighting according to the embodiment.

FIG. 6 is an exploded perspective view showing a main part of a second embodiment of the present invention.

FIG. 7 is a perspective view of an essential part showing the outer casing of the instrument.

FIG. 8 is a perspective view showing a conventional lighting fixture (first conventional example).

FIG. 9 is a side view of a main part of the above.

FIG. 10 is a side view of a main part when used for indirect lighting according to the above.

FIG. 11 is a side view of a relevant part in a different mounting state when used for indirect lighting according to the embodiment.

FIG. 12 is a perspective view showing another conventional lighting fixture (second conventional example).

FIG. 13 is a side view of a main part of the above.

[Explanation of symbols]

 1 Lamp 5 Mounting surface

Claims (1)

(57) [Scope of request for utility model registration] 1. A lighting device having a long lamp, wherein a cross section of the lighting device in a direction perpendicular to a tube axis of the lamp is substantially triangular, and the lamp is rotatable around the cross section. A lighting fixture characterized in that a mounting surface of the lighting fixture can be changed to any of three surfaces forming the substantially triangular cross section of the lighting fixture.