JPH0721964B2 - Ceiling embedded fluorescent lamp fixture - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a ceiling-embedded fluorescent lamp fixture using a U-shaped fluorescent lamp as a light source.

[Conventional technology]

The elongated U-shaped fluorescent lamp is a light source which has recently been put into practical use because it has a feature that it is small and highly efficient.

Then, as shown in FIG. 9, such a U-shaped fluorescent lamp 1 is supported in a cantilever manner on the socket 2 by connecting the base portion 1a provided at one end to the lamp socket 2. , Is laid horizontally inside the ceiling-embedded instrument body 3. The device body 3 is a device mounting port B of the ceiling plate A.
And is supported by a suspension bolt C in the ceiling. By the way, in such a fixture, in order to reduce the shadow of the lamp socket 2 as much as possible, the socket 2 is attached to one side wall 3a of the fixture body 3 so as to penetrate therethrough. A cover 4 is fixed to the outside of the side wall 3a of the fixture body 3 to cover the lamp socket 2 protruding outside the side wall 3a and the lead wires connected to the lamp socket 2 to protect them.

Since the cover 4 protrudes outward from the side wall 3a, the cover 4 that protrudes when the instrument main body 3 is attached to the ceiling.
Interferes with the insertion of the instrument mounting port B of the ceiling plate A. Therefore, in order to mount the device main body 3 on the ceiling in the related art, first, as shown in FIG. 10, the device main body 3 is slanted and pushed up obliquely upward as shown by an arrow D in FIG. The side of the side wall 3a is brought into contact with the edge of the instrument attachment port B while the other side is inserted into the instrument attachment port B. Next, the other side wall 3b side of the instrument body 3 is pushed up in the direction of arrow E in the figure so that the instrument body 3 rotates about this contact point, and a fixing hole formed in the ceiling of the instrument body 3
The lower end of the hanging bolt C is passed through 3c. Finally, a nut G (see FIG. 9) is screwed onto the lower end of the hanging bolt C to attach the instrument body 3 to the ceiling.

[Problems to be solved by the invention]

Conventionally, the installation procedure described above is forced,
Not only does the insertion into the instrument mounting port B require twice the labor (diagonal insertion and subsequent push-up), but the instrument body 3
There is a problem that the suspension bolt C must be passed through the fixing hole 3c at the time of rotating and pushing up, and its position alignment is difficult, and therefore the mounting on the ceiling is troublesome.

In addition, there is a conventional ceiling-embedded downlight in which the socket part is inserted into and removed from the side wall of the fixture body, but the fixture body of the downlight is small, and the inside is narrow, which makes the fixture body fixed to the ceiling. There is a problem in that when the socket part is taken out from the outside, the socket part is easily caught on the edge of the through hole formed in the side wall, so that the work is difficult.

[Means for solving problems]

The present invention is for solving the above-mentioned problems, in which a hanging bolt in the ceiling is inserted into a fixing hole provided on the upper surface, and in the instrument body of the lower surface opening supported by this bolt,
A ceiling-embedded fluorescent lamp in which a U-shaped fluorescent lamp is arranged laterally, and a lamp socket for supporting the lamp in a cantilever manner and a cover for covering the socket are provided so as to protrude outwardly from the side wall of the fixture body. Applies to lamp fixtures. Further, according to the present invention, a slanted guide is provided on the inside of the side wall, which gradually decreases from the inside of the instrument body toward the outside. Further, the cover is provided with an inclined slide portion for mounting the lamp socket and sliding along the guide, and the cover is provided along the guide so as to be removable from the side wall. Further, the cover is fixed to the guide by a tightening / releasing tightening means provided so as to be operable from the inside of the instrument body.

[Action]

When mounting the instrument body by embedding it in the ceiling, the cover can be stored inside the instrument body and the state can be held by tightening the fastening means, whereby the instrument body can be attached to the instrument installation port of the ceiling plate. The cover is prevented from interfering with the insertion. Insert the instrument body by pushing it straight up into the instrument installation port on the ceiling plate without tilting. Such insertion facilitates alignment between the fixing hole of the instrument body and the suspension bolt. Then, the hanging bolt and the instrument body are connected to each other, and the instrument body is attached to the ceiling. After that, the tightening means is loosened, and the slide portion of the cover is slid along the guide to project the cover from the side wall of the instrument body to the outside. In this case, the sliding operation of the cover can be easily performed by utilizing the weight of the cover itself, the lamp socket, and the like and the guide of the oblique guide, by utilizing its own weight. In addition, as a trigger for the sliding-out operation of the cover, an operator may supplementarily apply an outward pushing force to the cover. The cover protruding from the side wall of the instrument body as described above is fixed by tightening the above-mentioned tightening means.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 8.

FIG. 6 is an overall view of a ceiling-embedded fluorescent lamp fixture. As shown in FIG. 6, the fixture includes a fixture main body 11 having a substantially square lower surface and a horizontal body inside the main body 11. At least one provided (three in this embodiment)
U-shaped fluorescent lamp 12 and a light control body which is located below the lamp 12 and is provided under the instrument body 11 as needed.
13 and a lighting component (not shown) such as a ballast or a starter attached to the inner surface of the instrument body 11 or the like. In the case of the present embodiment, a louver composed of a plurality of vertical and horizontal light control plates 13a, 13b assembled in a grid pattern is used as the light control body 13. Reference numeral 13c in FIG. The decorative screw for fixing to is shown.

The instrument main body 11 is formed by connecting side walls 15 and 16 to both left and right sides of a main body 14 of a body in which a pair of front and rear side walls 14a and 14b are integrally bent, and is shown in FIGS. 7 and 8. As described above, the upper surface portion 14c of the main body portion 14 is provided with a plurality of fixing holes 17 through which the hanging bolts C in the ceiling are inserted. Further, the inner surface of the instrument body 11 is a reflective surface.

As shown in FIGS. 2 and 3, the U-shaped fluorescent lamp 12 has a base portion 12a at one end and is elongated.
The lamp 12 is cantilevered by a lamp socket 18 into which a cap portion 12a is inserted and removed, and a tip end of the lamp 12 has a lamp holder 19 attached to an inner surface of an upper surface portion 14c of the main body portion 14 ( (See FIG. 6) and is detachably engaged, and is laid sideways in the instrument body 11 as described above.

As shown in FIGS. 1 to 5, an oblique guide 20 is provided inside the side wall 15 and gradually lowers from the inside of the instrument body 11 toward the outside. In the case of the present embodiment, the guide 20 is made of a sheet metal separate from the instrument body 11, and the upper edge 20a is provided by fixing the upper edge 20a to the inner surface of the side wall 15 of the body main portion 14 with the screw 21 or the like. In addition, elongated holes 22 are formed at both front and rear ends thereof.

A cover 23 made of a metal plate that covers the lamp socket 18 is slidably attached to the guide 20. The cover 23 is an inclined slide part that slides along the guide 20.
Has 24. The cover 23 is fixed to the guide 20 by means of a tightening screw 26 as a tightening means that is screwed into the screw holes 25 provided at both front and rear ends thereof through the elongated hole 22. The tightening screw 26 is a decorative screw,
The operation is performed from the inside of the instrument body 11, and the cover 23 is slidable along the guide 20 so that the cover 23 can be freely inserted and removed through the through hole 15a formed in the side wall 15.

A lamp socket 18 is attached to the inside of the cover 23, and at least a part of the socket 18 is also projected outside the side wall 15 as the cover 23 moves.

In this embodiment, the lamp socket is attached to the cover 23.
18 is attached as follows. That is, the socket support plate 27 is fastened to the inner edge 23a of the cover 23 with the screw 28, and the socket insertion hole 27 provided in the support plate 27.
The insertion convex portion 18a of the lamp socket 18 is loosely inserted in a, and the stopper metal fitting 29 is provided on the rear surface side of the support plate 27.
Is connected to the lamp socket 18 with a screw 30. The stopper fitting 29 is for preventing the lamp socket 18 from coming off from the socket support plate 27, and has a recessed notch 29a in which the above-mentioned insertion protrusion 18a can move vertically. Therefore, the lamp socket 18 is tilted by its own weight so that the lamp insertion surface 18b faces downward as shown in FIGS. 1 and 2, thereby facilitating the attachment / detachment work of the lamp 12. There is. Of course, without being limited to this, it goes without saying that the present invention can be implemented by making the lamp socket 18 inclinable and fixing it directly or indirectly to the cover 23.

In the packaging of the ceiling-embedded fluorescent lamp fixture having the above structure, the cover 23 to which the lamp socket 18 is attached is stored inside the fixture body 11, and the stored state is held by tightening the tightening screw 26. Is. Therefore, despite the provision of the cover 23 that covers the lamp socket 18 protruding from the side wall 15 of the appliance body 11 in order to reduce the shadow of the lamp socket 18 when the appliance is used, it is possible to increase the size of the packaging. Can be prevented,
The packaging cost can be reduced.

Then, the fixture main body 11 of the ceiling-embedded fluorescent lamp fixture having the above-mentioned configuration is embedded and mounted in the ceiling in the following procedure.

First, in the unwrapped state, the cover 23 is
Since the state of being stored inside is held by tightening the tightening screw 26, the instrument main body 11 as it is is pushed straight up to the instrument attachment opening B of the ceiling plate A without tilting as shown in FIG. Inserting and fixing hole of instrument body 11
Insert the hanging bolt C into 17. And this bolt C
The nut G is screwed to the tip of the to connect the hanging bolt C and the instrument body 11 and thus attach the instrument body 11 to the ceiling.
After that, loosen the tightening screw 26 from the inside of the instrument body 11,
While sliding the slide portion 24 of the cover 23 along the guide 20, a part of the cover 23 and the lamp socket 18 attached to the cover 23 is projected from the through hole 15a of the side wall 15 of the fixture body 11 to the outside. In this case, the sliding operation of the cover 23 is facilitated by utilizing its own weight by the weight of the cover 23, the lamp socket 18, the socket support plate 27, etc. and the guide of the oblique guide 20. In addition, this cover
In some cases, as a trigger for the sliding operation of the cover 23, an operator assists the cover 23 with an outward pushing force. Finally, the cover protruding from the side wall 15 of the device body 11
23 is fixed by tightening a tightening screw 26 operated inside the instrument body 11.

After the fixture body 11 is mounted on the ceiling as described above, the U-shaped fluorescent lamp 12 is mounted on the lamp socket 18 and the lamp holder for the lamp 12 is mounted.
It is needless to say that the light control body 13 is attached to the instrument body 11 after the engagement with 19 is performed.

In addition, in the above-described embodiment, in order to enhance the automatic sliding effect of the cover to which the lamp socket is attached, the cover and the socket support plate are provided over a plurality of lamp sockets to increase the weight of the sliding portion. In the case of the implementation provided, a cover may be provided independently for each socket. Further, a long hole is provided in the slide part of the cover, and a tightening screw passing through the long hole is projected on a support plate provided on the back surface of the guide, and a nut is screwed onto the screw projected on the front surface of the guide. Then, by tightening the nut, a tightening means for sandwiching the slide portion between the guide and the support plate may be used. In addition, the guide may be integrally provided by cutting and bulging a part of the main body portion or side wall of the instrument body.

In addition, in carrying out the present invention, as long as it does not violate the gist of the invention, specific details such as a device main body and its side wall, a guide, a cover and its sliding portion, a lamp socket, a U-shaped fluorescent lamp, a tightening means, etc. It is needless to say that the structure, shape, position, material, etc. are not limited to the above-mentioned embodiment and the like, and can be implemented in various modes.

〔The invention's effect〕

According to the present invention, which has the structure described in the claims, the storage of the cover allows the instrument body to be inserted without tilting with respect to the instrument mounting opening of the ceiling plate, and the fixing hole of the instrument body and the Not only is it easy to position with the hanging bolts, but after fixing the fixture body to the ceiling, the cover and the lamp socket attached to it can be easily slid out along the guide using their own weight. With this, the cover and the lamp socket can be easily projected to the outside of the side wall of the instrument body, so that the workability of attaching the instrument body to the ceiling can be improved.

[Brief description of drawings]

1 to 8 show an embodiment of the present invention, FIG. 1 is a sectional view of a main part showing a state where a cover is stored, and FIG. 2 is a main part showing a state where a cover is projected. FIG. 3, FIG. 3 is a cross-sectional view of the main part showing a lamp supporting state, FIG. 4 is a perspective view showing an assembled state of a cover with a lamp socket attached and a guide, and FIG. 5 is shown in FIG. FIG. 6 is an exploded perspective view of the assembly, FIG. 6 is a perspective view of the whole assembly, and FIGS. 7 and 8 are schematic cross-sectional views for explaining a procedure for attaching the instrument body to the ceiling. 9 and 10 show a conventional example, and FIG.
The drawing is a cross-sectional view, and FIG. 10 is a schematic cross-sectional view for explaining the attachment to the ceiling. 11 ... Instrument body, 12 ... U-shaped fluorescent lamp, 15 ... Side wall, 17
… Fixing hole, 18… Lamp socket, 20… Guide, 23… Cover, 24… Sliding part, 26… Tightening means (tightening screw),
C ... Hanging bolt.

Claims (1)

[Claims] 1. A suspending bolt in a ceiling is inserted into a fixing hole provided on an upper surface, and a U-shaped fluorescent lamp is disposed laterally in a fixture main body having an opening on a lower surface supported by the bolt. ,
In a ceiling-embedded fluorescent lamp fixture in which a lamp socket that cantilever-supports this lamp and a cover that covers this socket are provided so as to protrude outside the side wall of the fixture body, the inside of the fixture body is inside the sidewall. Is provided with a slanted guide that gradually lowers toward the outer side, and the cover is provided with a slanted slide portion that slides along the guide while mounting the lamp socket on the cover. In addition, the ceiling-embedded fluorescent lamp fixture is characterized in that it is provided so as to be able to be taken out and put in from the side wall, and the cover is fixed to the guide by means of a freely tightenable fastening means provided so as to be operable from the inside of the fixture body.