JPH11111033A - Lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting system without putting a reflecting plate in contact with a lamp by the rotational movement of the reflecting plate and causing radiation in an irregularly lateral direction. SOLUTION: A hole with a female screw is provided on the ceiling of a lighting system outer frame 3. A screw 10 is threaded into the hole to form a downward protrusion. On the ceiling of a reflecting plate 8, a hole 22 is provided. When the reflecting plate 8 is fixed to the ceiling of the lighting system outer frame 3 with a screw 9, the end of the screw 10 is fitted into the hole 22. In this way, the reflecting plate 8 is positioned and the center of the lamp 7 corresponds to the center of a cutout in the reflecting plate 8. The lamp 7 is thus prevented from contacting or approaching the cutout at its end in the reflecting plate 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an illuminating device such as a downlight which is embedded in a ceiling and illuminates the lower side.

[0002]

2. Description of the Related Art A lighting device such as a downlight is generally installed by mounting an outer frame of a lighting device body on a ceiling via a mounting frame. A lamp and a reflector are mounted on the outer frame of the lighting device main body.

FIG. 4 shows a first example. In the lighting device shown in FIG. 4, the lamp is installed in a horizontal direction. A mounting frame 2 is fixed to the ceiling surface 1, and a lighting device outer frame 3 is mounted on the mounting frame 2. A socket holder 4 is attached to the illumination device outer frame 3 by screws 5, a socket 6 is attached to the socket holder 4, and a lamp 7 is fitted into the socket 6. A reflection plate 8 is suspended from the illumination device outer frame 3 by screws 9. The reflection plate 8 is rotatable around the screw 9 as a rotation axis.

When the lamp 7 is mounted, the center of the notch position of the reflector 8 is aligned with the center position of the lamp 7 (the center position of the socket 6), and the lamp 7 is screwed into the socket 6 and fixed through the notch.

FIG. 5 shows a second example of the lighting device. The lighting device shown in FIG. 5 has a lamp installed in a vertical direction, a reflector including a main reflector that reflects light downward, and a sub-reflector that reflects light laterally. A mounting frame 12 is fixed to the ceiling surface 11, and a lighting device outer frame 13 is mounted on the mounting frame 12. A socket holder 14 is attached to the illumination device outer frame 13, and a socket 15 is screwed to the socket holder 14. The lamp 16 is fitted into the socket 15.

A U-shaped spring 17 is fixed to the outer frame 13 of the lighting device.
19 are supported. The main reflector is composed of an upper main reflector 18 and a lower main reflector (cone main reflector) 19. One side of the lower main reflector 19 is cut out,
A sub-reflector 20 is fixed to the main reflectors 18 and 19 on the outside. Main reflectors 18 and 19 and sub reflector 2
Since 0 is only supported by the spring body 17, it can rotate around the ramp 16. The lower main reflection plate 19 and the sub reflection plate 20 rotate inside the mounting frame 12.

[0007]

The lighting device of the first example described above has the following problems. That is, in FIG. 4, since the reflection plate 8 is rotatable about the screw 9 as a rotation axis, the reflection plate 8 rotates under the influence of vibration or the like, and the end of the notch contacts or approaches the lamp 7. Or happen. In such a case, the reflector 8 is heated by the heat of the lamp 7 to shorten the life of the reflector 8, or the heat is transmitted to the ceiling through the outer frame 3 of the lighting device, thereby causing a fire. There is fear.

[0008] The illumination device of the second example has the following problems. That is, in FIG.
19 and the sub-reflection plate 20 are rotatable around the lamp 16 and thus are rotated by vibration or the like.
There is a possibility that the direction of the light to the side that is reflected and illuminated at the side may be out of order.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem. Illumination that prevents the reflector from coming into contact with the lamp due to the rotation of the reflector and the irradiation direction in the horizontal direction from being changed. It is an object to provide a device.

[0010]

According to a first aspect of the present invention, there is provided a lighting device in which a reflector is installed on an outer frame of a lighting device and a lamp is mounted horizontally in the reflector. A lighting device according to claim 1, wherein a downward convex portion is provided on a ceiling portion of the frame, and a hole is provided in the ceiling portion of the reflection plate so as to fit the convex portion.

[0011] In this means, the reflecting plate is positioned by aligning the downward projection provided on the ceiling portion of the outer frame of the lighting device with the hole provided on the ceiling portion of the reflecting plate. If the center of the notch of the reflector is aligned with the center of the socket of the lamp at the position where the protrusion and the hole are aligned, when the lamp is mounted, the center of the lamp is aligned with the center of the notch of the reflector. I will pass. Since the rotation of the reflection plate is stopped at this position by inserting the projection into the hole, even if there is vibration or the like, the position of the notch portion of the reflection plate is displaced so that the reflection plate is brought into contact with or close to the lamp. Nothing to do.

A second means for solving the above-mentioned problem is as follows.
In a lighting device in which a set of a main reflector and a sub-reflector is provided rotatably in a horizontal direction in a mounting frame for mounting the outer frame of the lighting device, the inner diameter of the mounting frame is the inner diameter of the main reflector at the mounting frame position. A lighting device, wherein a notch portion is provided which is larger than the outer diameter and smaller than the outer diameter of the sub-reflection plate at the position of the mounting frame, and in which a part of the mounting frame is fitted with the sub-reflecting plate. Item 2).

In this means, a cutout portion is provided in a part of the mounting frame in which the sub-reflecting plate is fitted. The inner diameter of the other part is larger than the outer diameter of the main reflecting plate at the mounting frame position.
It is smaller than the outer diameter of the sub-reflector at the mounting frame position.
Therefore, by attaching the main reflector and the sub-reflector by fitting the sub-reflector into the notch, the horizontal rotation of these reflectors is regulated. Therefore, even if there is vibration or the like, the irradiation direction in the horizontal direction does not change.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a first example of an embodiment of the present invention. In FIG. 1, 1 is a ceiling surface, 2 is a mounting frame, 3 is an outer frame of a lighting device, 4 is a socket holder, 5 is a screw, 6 is a socket, 7 is a lamp, 8 is a reflector, 9 is a screw, and 10 is fixed. It is a screw which is a member.

A mounting frame 2 is fixed to the ceiling surface 1, and a lighting device outer frame 3 is mounted on the mounting frame 2. A socket holder 4 is attached to the outer frame 3 of the lighting device by screws 5,
A socket 6 is attached to the socket holder 4, and a lamp 7 is fitted into the socket 6. Lighting device outer frame 3
, A reflection plate 8 is suspended by screws 9.

The ceiling of the outer frame 3 of the lighting device is provided with a female thread for screwing the screw 10 therein. Then, by screwing the screw 10 into this hole, the “downward projection” in claim 1 is formed. A convex portion (screw 10) provided on the illumination device outer frame 3 is provided on a ceiling portion of the reflection plate 8.
Hole 2 through which the tip of screw 10 is inserted.
2 are provided.

The projection formed by the screw 10 screwed into the outer frame 3 of the illumination device is inserted into a hole 22 provided in the reflection plate 8, so that the reflection plate 8 and the illumination device 3 rotate relatively. Fix it not to. As a result, the reflector 8 is positioned, and the center of the socket 6 and the lamp 7 coincides with the center of the notch of the reflector 8. Therefore, even if there is vibration or the like, the cutout ends of the lamp 7 and the reflection plate 8 do not contact or approach each other.

The projection does not necessarily need to be a screw,
For example, it is formed by fitting a cylindrical member with an umbrella into a hole provided in the outer frame 3 of the lighting device,
2 may be formed by projecting a part of the ceiling of the outer frame 3 of the lighting device downward, and the projecting portion may be fitted into the hole 22 of the reflection plate 8.

FIGS. 2 and 3 show a second embodiment of the present invention. This embodiment is almost the same as the conventional illuminating device shown in FIG. 5, and only the structure of the mounting frame is different. Therefore, FIGS. 2 and 3 will be described focusing on the different parts. .

2 and 3, reference numeral 12 denotes a mounting frame, 13 denotes an outer frame of the lighting device, 14 denotes a socket holder, 18 denotes an upper main reflector, 19 denotes a lower main reflector, 20 denotes a sub reflector, and 21 denotes a mounting frame. 12 is a cutout portion.

FIG. 3 shows the structure of the mounting frame, in which the inner diameter D is larger than the outer diameter of the lower main reflector 19 at the mounting frame position and smaller than the outer diameter of the sub-reflector plate 20 at the mounting frame position. Have been. Here, since the horizontal cross section of the sub-reflector 20 is a part of a circle, the outer diameter is not strictly defined, but the outer diameter of a part of the circle is referred to as the outer diameter of the sub-reflector 20. . At the position where the sub-reflection plate 20 is fitted, a notch 21 is provided for fitting the sub-reflection plate.

In order to mount the main reflectors 18 and 19 and the sub-reflector 20, as shown in FIG. 2, the position of the sub-reflector 20 is aligned with the notch 21, and the mounting frame 12 and the outside of the lighting device are installed from below. Insert into frame 13. Then, in a state where the sub-reflector 20 is fitted into the notch 21, the main reflectors 18 and 19 are supported and fixed by the spring body 17 as shown in FIG.

According to such a method, the main reflector 18,
The rotation in the horizontal direction of the sub-reflection plate 19 and the sub-reflection plate 20 is restricted by the sub-reflection plate 20 being fitted into the notch 21 of the mounting frame 12. Therefore, the direction of the reflection in the horizontal direction by the sub-reflector 21 does not change due to vibration or the like.

[0024]

As described above, according to the first aspect of the present invention, in the lighting device in which the reflector is installed on the outer frame of the lighting device and the lamp is mounted in the reflector horizontally. A downward convex portion is provided on the ceiling portion of the outer frame of the apparatus, and a hole for fitting the convex portion is provided on the ceiling portion of the reflective plate.By inserting the convex portion into the hole of the reflective plate, It is possible to prevent the reflector from rotating in the horizontal direction. As a result, even if there is vibration or the like, the position of the cutout portion of the reflector is not shifted and does not come into contact with or approach the lamp.

In the invention according to claim 2 of the present invention, a set of a main reflector and a sub-reflector is provided in a mounting frame for mounting an outer frame of the lighting device so as to be rotatable in a horizontal direction. In the lighting device, the inner diameter of the mounting frame is larger than the outer diameter of the main reflecting plate at the mounting frame position, and smaller than the outer diameter of the sub-reflecting plate at the mounting frame position, and the sub-reflecting plate is fitted to a part of the mounting frame. Since the notch portion is provided, the horizontal rotation of the reflection plate is regulated by fitting the sub-reflection plate into the notch portion. Therefore, even if there is vibration or the like, the irradiation direction in the horizontal direction does not change.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of an embodiment of the present invention.

FIG. 2 is a diagram showing another example of the embodiment of the present invention.

FIG. 3 is a view showing a mounting frame of the embodiment shown in FIG. 3;

FIG. 4 is a diagram illustrating an example of a conventional lighting device.

FIG. 5 is a diagram showing another example of a conventional lighting device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ceiling surface 2 Mounting frame 3 Lighting device outer frame 4 Socket holder 5 Screw 6 Socket 7 Lamp 8 Reflector 9 Screw 10 Screw 11 Ceiling surface 12 Mounting frame 13 Lighting device outer frame 14 Socket holder 15 Socket 16 Lamp 17 Spring body 18 Upper part Main reflector 19 Lower main reflector 20 Sub reflector 21 Notch 22 Hole

Claims (2)

[Claims] 1. A lighting device in which a reflector is installed on an outer frame of a lighting device and a lamp is mounted horizontally in the reflector, a downward convex portion is provided on a ceiling portion of the outer frame of the lighting device, and a ceiling of the reflecting plate is provided. A lighting device, characterized in that a hole is provided in a portion for inserting the projection. 2. A lighting device in which a set of a main reflector and a sub-reflector is provided rotatably in a horizontal direction in a mounting frame for mounting an outer frame of the lighting device. The outer diameter of the main reflector is larger than the outer diameter of the sub-reflector at the position of the mounting frame, and a notch portion where the sub-reflector is fitted to a part of the mounting frame is provided. Lighting equipment.