JPH058813U - lighting equipment - Google Patents

Abstract

(57) [Summary] [Purpose] It is difficult to create a shadow on the mounting surface and the light distribution can be changed. A cross section of a lighting device perpendicular to the tube axis of the lamp 1 is formed into a substantially isosceles right triangle, and the lamp 1 is rotatably attached to an end plate 8 having a substantially isosceles right triangle of the lighting device. The lighting fixture can be mounted on any of the three faces forming the substantially right-angled triangle shaped cross section of the outer contour.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lighting device.

[0002]

[Prior Art]

 8 to 11 show an example of a conventional lighting fixture (first conventional example). The lighting fixture includes a long fluorescent lamp 1, and a tube axis of the lamp 1 is provided. The device cross section in the vertical direction has a substantially rectangular shape.

The four surfaces forming a substantially quadrangular instrument cross section are configured by an instrument main body 2 having a U-shaped cross section and a substantially flat plate-shaped reflection plate 3 attached to the opening side of the instrument main body 2. Lighting parts such as a discharge lamp lighting device are built in the fixture body 2. A socket 4 for mounting the lamp 1 is fixedly attached to both ends of the fixture body 2 on the reflection plate 3 side in the longitudinal direction, and the socket 4 of the fixture body 2 facing the reflection plate 3 is fixed. The character-shaped center surface is configured as a mounting surface 5, and the mounting surface 5 is mounted on a structure 6 such as a ceiling.

FIG. 12 and FIG. 13 show an example of another conventional lighting fixture (second conventional example). This lighting fixture includes a long fluorescent lamp 1, and the lamp 1 The instrument cross-section in the direction perpendicular to the pipe axis is formed into a triangular truncated cone shape, and both ends on the bottom side (ceiling surface side) are bent to have a substantially vertical rising surface at the bottom. Is.

The cross-section of this substantially triangular truncated pyramid-shaped device has a reflection plate 3 that is open to the bottom side, and sockets 4 that are fixedly attached to both ends in the lengthwise direction and that are arranged in the opening. And the instrument main body 2 in the shape of. Further, lighting parts such as a discharge lamp lighting device are 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 attached to a structure 6 such as a ceiling. It is a thing.

[0006]

[Problems to be solved by the device]

 However, in the first and second conventional examples configured as described above, as shown in FIG. 9, FIG. 11 and FIG. 13, the reflecting plate 3 disposed on the mounting surface 5 side of the lamp 1 When the light from the lamp 1 is blocked and a shadow 7 is formed on the surface of the structure 6 on the side of the fixture body 2, and when used as indirect illumination, the distance from the mounting surface 5 to the tip of the lamp 1 However, there is a drawback that the lamp 1 may be visible as shown in FIG. 10 depending on the height of the light shielding part 6a. Further, since the lamp 1 is fixedly attached, there is a drawback that the light distribution of the lighting fixture cannot be changed.

The present invention has been made in view of the above background, and an object of the present invention is to prevent a side shadow of a lighting fixture from occurring and to change the light distribution of the lighting fixture. An object of the present invention is to provide a luminaire in which a plurality of surfaces of the luminaire outer shell can be selected as mounting surfaces for the luminaire.

[0008]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention provides a lighting fixture comprising a long lamp 1, wherein a cross section of the fixture perpendicular to the tube axis of the lamp 1 has a substantially triangular shape, and the lamp 1 has the above-mentioned cross section. It is characterized in that the mounting surface 5 of the lighting fixture can be freely changed to any of the three surfaces forming the cross section of the substantially triangular shaped fixture, while being rotatable about the center.

[0009]

[Action]

 The luminaire according to the present invention is a luminaire having a long lamp 1, and since the luminaire cross section perpendicular to the tube axis of the lamp 1 has a substantially triangular shape, the light from the lamp 1 is reflected by a reflector plate 3. The shadow 7 is unlikely to be formed 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, a reflector plate is provided. The position of the lamp 1 with respect to 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. Even in indirect illumination, the lamp 1 can be rotated about the cross section. Then, 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 cannot be seen.

[0010]

【Example】

 1 to 5 show a first embodiment of the present invention. This luminaire includes a long fluorescent lamp 1, and the cross section of the luminaire in a direction perpendicular to the tube axis of the lamp 1 is formed into a substantially isosceles right triangle shape, and inside thereof is a discharge lamp lighting device or the like. The lighting component is housed and configured, and the socket 4 is rotatably attached to the substantially triangular end plates 8 attached to both ends of the instrument in the longitudinal direction.

The three sides of the luminaire having a substantially right-angled isosceles triangle cross section are provided with mounting holes and power supply line holes by a knockout method so that they can be used as both a reflector and a mounting surface. By punching out one of the knockouts with a tool such as a screwdriver, that one surface becomes the mounting surface 5, and at this time, the other two surfaces become the reflecting plate 3.

The end plate 8 has a screw hole 8a substantially in the center thereof, and is concentrically provided with two conductive grooves 8b centered on 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. The through hole is provided laterally of the through hole 4a. The two conductive pins 4b are provided so as to face the conductive groove 8b at different distances.

In the thus constructed lighting fixture, the end plate 8 is attached to the end of the fixture whose cross section is substantially right triangle, the conductive pin 4b of the socket 4 is inserted into the conductive groove 8a, and fixed by the screw 9. And then assembled.

As described above, in the lighting apparatus according to the present invention, since the section of the elongated lamp 1 in the direction perpendicular to the tube axis is substantially triangular, the light from the lamp 1 may be blocked by the reflector 3. Therefore, the structure 6 such as the ceiling on the side of the mounting surface 5 is less likely to be shaded, and the mounting on the corner portion formed by the ceiling and the wall surface is well accommodated. Further, since the lamp 1 is configured to be rotatable around the cross section and the mounting surface 5 of the luminaire can be changed to any of the three substantially triangular surfaces, the position of the lamp 1 with respect to the reflection plate 3 changes. However, the height of the lamp 1 with respect to the mounting surface 5 can also be changed to change the light distribution of the lighting fixture. Even in indirect lighting, as shown in FIG. 3, the lamp 1 is rotated centering on the cross section to block light. It is possible to make the lamp 1 invisible by changing the height of the lamp 1 so as to block the direct light of the lamp 1 at the portion 6a.

FIG. 6 and FIG. 7 show a second embodiment of the present invention. The difference from the first embodiment is that the instrument outer shell having a substantially triangular cross section has its corners at its corners. The corner body 10 is arranged and three plate bodies 11 having the same size, and the other points are the same as those of the first embodiment.

The corner body 10 is arranged at three corners of a substantially triangular shape and has a substantially L-shaped cross section, one of which has a right angle and the other two of which have an acute angle. Have. Further, 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 when the corner body 10 is combined with the plate body 11, a long side is formed on the hypotenuse side of the substantially right triangle. The sides are arranged, and the distances d between the grooves 10a of the corner bodies 10 facing each other on the three surfaces of the substantially triangular shape are formed to be equal.

The three plate members 11 are formed to have the same dimensions including the width dimension d, one of which is provided with a mounting hole, a power line through hole, etc. It is used as a reflector with no special holes.

The corner body 10 and the plate body 11 configured as described above have two substantially rectangular cross sections when three plate bodies 11 are inserted between the grooves 10 a provided on both sides of the three corner bodies 10. An equilateral triangular outer shape of the device is formed, and the end plates 8 are attached to both ends of the device to assemble.

With this structure, the same effects as those of the first embodiment are obtained, and when the mounting surface is desired to be changed, the end plate 8 is removed and the plate body on the mounting surface 5 side is removed. 11 and the plate body 11 on the reflecting surface side can be exchanged, it is not necessary to provide an attaching hole or the like in the plate body 11 on the reflecting surface side.

In each of the above-described embodiments, the example in which the lighting device has a cross section of an isosceles right triangle is described, but the present invention is not limited to this, and any shape may be used as long as it has a substantially triangular shape. It may have a shape. Alternatively, the shape may be a substantially triangular shape with chamfered corners.

[0022]

[Effect of the device]

 As described above, in the luminaire of the present invention, in the luminaire having a long lamp, the cross section of the luminaire perpendicular to the tube axis of the lamp has a substantially triangular shape, so that the light from the lamp is not emitted. It is not blocked by the reflector and the shadow is unlikely to appear on the mounting surface. Further, since the lamp is configured to be rotatable about the cross section and the mounting surface of the lighting fixture can be changed to any of the three surfaces forming the substantially triangular fixture cross section, the lamp with respect to the reflector plate can be changed. The position of the lamp changes and the height of the lamp with respect to the mounting surface also changes, so that the light distribution of the lighting fixture can be changed, and even when it is used for indirect lighting, the lamp height can be changed by rotating the lamp around the cross section. You can change the height to make the lamp invisible.

[Brief description of drawings]

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

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

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

FIG. 4 is a side view of a main part when it is used for indirect illumination in the above.

FIG. 5 is a side view of a main part with a different mounting state when used for the above indirect illumination.

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

FIG. 7 is a perspective view of an essential part showing an outer contour of the device of the same.

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

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

FIG. 10 is a side view of a main part when it is used for the above indirect illumination.

FIG. 11 is a side view of an essential part with a different mounting state when used for indirect illumination of the same.

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

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

[Explanation of symbols]

 1 lamp 5 mounting surface

Claims (1)

[Claim 1] In a lighting fixture having a long lamp, a cross section of the fixture perpendicular to the tube axis of the lamp has a substantially triangular shape, and the lamp is centered on the cross section. The lighting device is configured to be freely rotatable, and the mounting surface of the lighting device can be freely changed to any of the three surfaces forming the substantially triangular device cross section.