JPH0731925B2 - lighting equipment - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device capable of increasing the number of lights by using a secondary lighting device, and in particular, a louver, a cover and the like can be attached to a lower surface opening. It is related to the lighting equipment.

2. Description of the Related Art A luminaire capable of increasing the number of lights by an auxiliary luminaire and having a louver attached to the lower surface of the luminaire body is, for example, of the type described in JP-A-63-269404. There is. This type of luminaire has a mounting structure for attaching a louver to the main body of the opening on the bottom surface, and socket holding portions at both ends for selectively mounting the socket base at the upper position and the lower position. Both ends of the auxiliary lighting device are fixed to the socket of.

In other words, when the louver or cover is not used, the socket base is placed in the lower position in order to improve the lighting efficiency, and when installing the louver or cover, in order to secure the space for the louver or cover. The socket base is located at the upper position. In each case, when additional lighting is required, the auxiliary lighting device is suspended and fixed to each socket base.

Since the attachment of the socket base to the device body is vertically position-selective, a protrusion is formed on the inner surface of the device body and the socket base is moved in the horizontal direction to engage with the aforementioned protrusion. It is done by things.

Therefore, when the number of lights is not increased, the socket bases at both ends are independent of each other, so that it is easy to select the vertical position. That is, the horizontal movement of the socket base is free. However, when the secondary lighting equipment is installed for increasing the number of lights, the socket mounts at both ends are integrated by the secondary lighting equipment, which allows the socket base to move in the horizontal direction. I can't. for that reason,
At the time of increasing the number of lights, the sub-illuminators cannot be moved up and down without removing the sub-luminaires. Therefore, the operation of selecting the upper and lower positions of the socket base is troublesome and time-consuming.

MEANS FOR SOLVING THE PROBLEM A device main body having a bottom opening having socket holding portions for selectively holding a socket base to which a socket for holding a straight tube type fluorescent lamp is attached at an upper position and a lower position is formed. Provided,
Reinforcing metal fittings are fixedly mounted on the inner surface of the main body of the equipment at a predetermined interval, and the main body of the auxiliary lighting equipment having a socket connected to these reinforcing metal fittings by holding a ballast and having a flexible cord is attached. Mounting, the socket of the auxiliary lighting device was mounted on the socket base.

Action The main body of the auxiliary lighting fixture is attached to the reinforcing metal fitting fixed to the main body of the fixture, and the socket of the auxiliary lighting fixture is connected to the main body via a flexible cord. It is possible to freely select the vertical position of the socket base with the device attached, and thus it is possible to easily set the vertical position of the fluorescent lamp when the louver, the cover and the like are attached and detached.

Embodiment An embodiment of the present invention will be described with reference to the drawings.

First, a rectangular parallelepiped instrument main body 1 having an opening on the lower surface is provided, and three inwardly projecting holding protrusions 3 are formed on the inner side surfaces 2 at both ends of the instrument main body 1 to form a socket holding portion 4.
Is formed in two steps. Further, a pair of reinforcing metal fittings 5 are fixedly attached inside the instrument body 1.
A hook-shaped mounting portion 6 and a holding slit 7 are formed in these reinforcing metal fittings 5.

Next, a socket base 8 is provided, and the socket base 8 is provided with an insertion portion 9 which is inserted horizontally from below or above the socket holding portion 4. A retaining locking portion 10 is formed at the tip of each of the insertion portions 9 to prevent the insertion portion 9 from coming off. Further, the socket base 8 is formed with a socket hole 12 for holding two sockets 11 and a sub socket hole 13 for mounting an auxiliary socket described later. In addition, the socket base 8 has a reflection plate mounting screw portion.
14 is formed, and the reflection plate 26 is attached by an attachment screw (not shown).

Next, a sub lighting device 15 is provided. The auxiliary lighting device 15 includes a main body 18 that holds the ballast 16 and the terminal block 17, and an auxiliary socket 20 that is pulled out from the main body 18 with a flexible cord 19. At the end of the main body portion 18, the mounting tongue piece 22 to which the mounting screw 21 that is bent in the vertical direction and inserted into the mounting portion 6 is screwed, and the lower edge of the auxiliary metal fitting 5 are in contact with each other. One is formed with a pair of projecting pieces 23 to be inserted into the holding slit 7.

Then, a cover 25 supported by a frame body 24 is attached to the lower surface opening of the instrument body 1 if necessary. Although the description of the mounting structure of the cover 25 is omitted, it is removably attached to the lower opening of the instrument body 1.

In such a configuration, the one shown in FIG. 5 does not have the cover 25 attached to the instrument body 1 and does not increase the number of lights.
Two fluorescent lamps are attached. In this case, in order to improve the illumination efficiency, the socket base 8 is located below the socket holding portion 4 so that the position of the fluorescent lamp is close to the lower opening.

What is increased in this state is the state shown in FIG. 6,
The auxiliary lighting device 15 is attached. That is, in order to change the state of the two lamps shown in FIG. 5 to the state shown in FIG. Is attached to the sub socket hole 13 of the socket base 8.

In this case, the mounting tongue piece 22 of the main body portion 18 of the auxiliary lighting device 15 is located on the inner surface side of the reinforcing metal fitting 5, and the projecting piece 23 is in contact with the lower edge of the reinforcing metal fitting 5. Then, the one projecting piece 23 is inserted into the holding slit 7, and in this state, the main body portion 18 is fixed by the mounting screw 21.
Is fixed to the reinforcing metal fitting 5.

In this way, the number of lights is increased from two to three, but when the cover 25 or the louver is attached to the lower surface opening of the device body 1 in this state, the socket base 8 is positioned above the socket holding portion 4. There is a need. This procedure will be described. First, the reflection plate 26 is removed, and then the socket bases 8 at both ends are extracted. In this case, even if the auxiliary lighting device 15 is attached, the main body portion 18 of the auxiliary lighting device 15 is fixed to the reinforcing metal fitting 5, and the auxiliary socket 20 attached to the socket base 8 is attached.
Is connected to the main body 18 by a flexible cord 19, so that the socket base 8 can be freely moved. That is, by moving the socket base 8 in the horizontal direction,
It is pulled out from the lower position of the socket holding portion 4. In this state, the socket base 8 is inserted into the upper position of the socket holding portion 4. Thereby, the positions of the sockets 11 and 20 can be positioned upward without moving the main body portion 18 of the auxiliary lighting fixture 15, and a space for the cover 25 can be formed in the lower opening portion of the fixture main body 1. Therefore, set the socket base 8 to the upper position and then attach the reflector plate 26 to attach the fluorescent lamp to each socket 1.
By attaching to cover 1,20 and then cover 25
The state shown in the figure is obtained.

Since the main body 18 of the auxiliary lighting fixture 15 is attached to the reinforcing metal fitting 5 attached to the fixture main body 1, it does not resonate with the vibration generated in the ballast 16 and keeps the noise level low. be able to.

EFFECTS OF THE INVENTION As described above, the present invention has a lower surface opening in which socket holding portions for selectively holding a socket base to which a socket for holding a straight tube type fluorescent lamp is attached at upper and lower positions are formed at both ends. The device main body is provided, and the reinforcing metal fittings are fixedly attached to the inner surface of the device main body at a predetermined interval, and the auxiliary metal fittings that hold the ballasts on these reinforcing metal fittings and have sockets connected by a flexible cord Since the main body of the lighting fixture is attached and the socket of the auxiliary lighting fixture is attached to the socket base, the main body of the auxiliary lighting fixture is attached to the reinforcing metal fitting fixed to the fixture main body. Since the socket is connected to its main body via a flexible cord, it is possible to freely select the vertical position of the socket base with the auxiliary lighting equipment attached. Since the up and down position of the fluorescent lamp can be easily set when the louver or cover is attached or detached, and the sub socket of the sub lighting fixture can be attached to the socket base, it is not necessary to provide a socket base dedicated to the sub lighting fixture. Also, the vibration of the ballast of the auxiliary lighting equipment does not resonate because the main body is attached to the reinforcing metal fittings, and the main body of the auxiliary lighting equipment is attached to the reinforcing metal fittings. Since it is formed to have a length that can be operated, both hands can be operated at the time of attachment / detachment due to its short overall length, which has the effect of improving operability and enhancing workability.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a perspective view with a part of the auxiliary lighting equipment cut away, and FIG. 2 is a view of the auxiliary lighting equipment immediately before mounting and fixing. FIG. 3 is a partial exploded perspective view, FIG. 4 is an exploded perspective view of a socket base portion, FIG. 5 is a vertical side view of a two-lamp state, and FIG. FIG. 7 is a vertical sectional side view in a state where a cover is attached. 1 ... Instrument main body, 4 ... Socket holding part, 5 ... Reinforcing metal fitting, 8 ... Socket stand, 11,20 ... Socket stand, 15 ...
Sub-luminaire, 16 ... Ballast, 18 ... Main body, 19 ... Cord

Claims (1)

[Claims] 1. An instrument main body having a bottom opening, wherein socket holding portions for selectively holding a socket base to which a socket for holding a straight tube type fluorescent lamp is attached at upper and lower positions are provided at both ends. Reinforcing metal fittings are fixedly attached to the inner surface of the main body of the equipment at predetermined intervals, and the main body of the auxiliary lighting equipment having a socket connected to these reinforcing metal fittings by holding a ballast and having a flexible cord is attached. An illumination fixture, characterized in that the socket of the auxiliary illumination fixture is attached to the socket base.