JP3570199B2 - lighting equipment - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a lighting fixture such as a downlight.
[0002]
[Prior art]
In mounting the downlight, the downlight is fixed to the ceiling using a device typified by the device body and the mounting bracket, and an anchor bolt is extended from the skeleton of the building behind the ceiling, and the device is fixed to the bolt. There is.
FIGS. 9 to 11 show a conventional downlight of this type. Reference numeral 100 denotes an embedded hole in the ceiling, 101 denotes an instrument body, and 102 denotes a socket base. The appliance body 101 is inserted into the embedding hole 100, the outer flange 103 is locked on the edge of the embedding hole 100, and is attached to the anchor bolt 104 hanging from the ceiling frame with a nut 105. The socket base 102 has a terminal base 106 and a lamp socket 107, and a mounting piece 109 provided at an upper end portion of both side pieces 108 is fixed to a top part of the appliance main body 101 by a socket base fixing screw 110. 111 is a reflector, 112 is its mounting spring, and 113 is a lamp.
[0003]
As shown in FIG. 11, the appliance main body 101 is inserted into the through hole 100 provided in the ceiling with the electric wire 115 previously passed through the electric wire through hole 114 of the appliance. It is fixed with a nut 105. The socket base 102 is connected to the terminal block 106 with the electric wire 115 drawn in through the wire passage hole 114 of the appliance main body 101 before being attached to the appliance main body 101 attached to the ceiling. Attach to 101.
[0004]
[Problems to be solved by the invention]
However, in this lighting fixture, since the bolts are hung in a state where the electric wire 115 is inserted into the lighting fixture in advance, it is difficult to perform a nut tightening operation. Further, when the socket base 102 is connected to the terminal block 106 or the like at the lower part of the ceiling opening surface and the socket base 102 is set at a fixed position of the appliance, the electric wire 115, for example, a cable, especially a fire-resistant cable, has a strong strain, so that it is difficult to set. .
[0005]
In order to facilitate these operations, the size of the instrument is increased. Therefore, it has been demanded to make the work easier while keeping the size of the implement as small as possible.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a lighting fixture that can facilitate the work of attaching the fixture main body and can be downsized.
[0006]
[Means for Solving the Problems]
The lighting device according to claim 1, further comprising a pair of mounting legs having a top portion and hanging from the top portion to form an opening therebetween, and a side plate hanging down from the top portion at the opening and shorter than the mounting legs. An instrument main body having an electric wire insertion hole cut out toward the opening in the side plate and attached to the embedded hole of the ceiling, and an electric wire pulled down from behind the ceiling through the opening of the instrument main body. A terminal block attached to the instrument body such that the electric wires are connected and positioned in the electric wire insertion hole.
[0007]
According to the lighting device of the first aspect, since the electric wire to be pulled down through the recessed hole in the ceiling only needs to be located at the opening of the device main body, the mounting operation of the device main body is facilitated, the workability of mounting the device can be improved, and the large size There is no need to convert. In addition, when the terminal block to which the wire is attached is attached to the predetermined position, the wire moves from the opening to the wire insertion hole, so it can be installed without worrying about the strength of the wire itself and apply excessive force to the wire itself. No stress is applied to the wire itself and the connection.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
One embodiment of the present invention will be described with reference to FIGS. That is, the downlight, which is the lighting fixture, includes the socket base 1 having the terminal block 4, the fixture main body 2, and the fixing means 3.
The socket base 1 has a terminal base 4 and a lamp socket 5 and has a guided part 6. In the embodiment, the socket base 1 is formed of a flat plate using, for example, a sheet metal part or the like, and the spring engaging pieces 9 are bent down on both sides to form the engaging holes 10 in the spring engaging pieces 9. The lamp socket 5 is mounted on the lower surface of the socket base 1, the terminal base 4 is mounted on the upper surface, the lamp socket 5 and the terminal base 4 are mutually connected, and the terminal base 4 is connected to an electric wire 17 such as a cable. . An incandescent lamp 7, for example, is mounted on the lamp socket 5, and the terminal block 4 has, for example, a quick connection structure. The guided portion 6 includes a first guide projection 6a and a second guide projection 6b integrally formed on both sides of the spring engagement piece 9 at the edge of the socket base 1.
[0009]
The appliance main body 2 has a top portion 2a, and has a pair of mounting legs 2b which hang down from the top portion 2a to form an opening 30 therebetween, and hang down from the top portion 2a at the opening 30 shorter than the mounting legs 2b. The side plate 2c has an electric wire insertion hole 18 cut out toward the opening 30 and is attached to the embedded hole 16 in the ceiling. In addition, a vertical guide portion 11 that guides the guided portion 6 is provided on the inner surface of the device main body 2, and a horizontal guide portion 12 that guides the guided portion 6 in a horizontal direction from an upper position of the vertical guide portion 11 is provided. . The appliance main body 2 of the embodiment has a generally octagonal column shape as a whole, so that the four sides formed by the mounting legs 2b and the side plates 2c are made strong. Further, a hole 13 for bolt suspension is formed so as to avoid the terminal block of the top portion 2a, and a T-groove 14 for mounting a mounting tool (not shown) to be locked on the rear surface of the ceiling is formed in the center of the mounting leg 2b. At the lower end of the mounting leg 2b, an outer flange 15 that locks to the edge of the embedding hole 16 is bent.
[0010]
The vertical guide portion 11 is formed on the inner surface of the mounting leg 2b, and has both sides of the mounting leg 2a inward so as to guide the side surfaces of the first guide protrusion 6a and the second guide protrusion 6b on the side apart from each other. It is constituted by both side edge portions 11a and 11b formed by bending into two. The horizontal guide portion 12 is a slide groove portion 12a formed by a cutout formed in the vertical direction guide portion 11b, and the second guide protrusion 6b engages with the slide groove portion 12a, and engages with the inner deep portion. When stopped, the socket base 1 is positioned at the mounting position of the instrument body 2 and is supported without dropping.
[0011]
The appliance main body 2 is attached to the ceiling with the electric wires 17 pulled down through the opening 30, and the terminal block 4 is connected to the electric wires 17 so that the electric wires 17 are located in the electric wire insertion holes 18. Mounted inside. That is, after the electric wire 17 is connected to the terminal block 4, the terminal block 4 is fixed to the appliance main body 2 by attaching the socket base 1 to the appliance main body 2. At this time, the electric wire 17 is placed in the electric wire insertion hole 18. I have.
[0012]
The fixing means 3 fixes the socket base 1 to the appliance main body 2 at a position where the socket base 1 is guided by the horizontal guide portion 12. The fixing means 3 according to the embodiment includes a round hole 8 provided in the socket base 1 and a round hole 8 provided in the appliance main body 2 when the socket base 1 is located at an upper position along the vertical guide portion 11. The head 3a passes through the large-diameter portion 8b, and the socket base 2 moves along the horizontal guide portion 12, so that the head 21a has the mounting screw 21 that moves to the small-diameter portion 8a of the burrow hole 8. . The mounting screw 21 of the embodiment is provided with an incomplete screw portion at the tip of the screw portion 21b so as not to fall off from the instrument body 2. In addition, the ball hole 8 is formed at an end of the first guide 6a opposite to the second guide 6b in a direction orthogonal to the direction in which the spring engaging pieces 9 of the socket base 1 are arranged. The small diameter portion 8a is oriented so that the center side of the socket base 1 becomes the large diameter portion 8b. As shown in FIG. 7, the Daruma hole 8 is provided with a substantially annular projection 19, for example, by burring on the periphery of the large diameter portion 8b, and the head 21a of the mounting screw 21 is moved from the large diameter portion 8b to the small diameter portion 8a. , The socket base 1 is prevented from coming off unless the socket base 1 is raised by the height of the projection 19. The fixing means 3 also functions as the horizontal guide portion 12 together with the slide groove portion 12a.
[0013]
Reference numeral 28 denotes a reflection plate, and the attachment piece 16 provided at the upper end of the reflection plate 28 is attached by engaging with the hole 10 of the spring engagement piece 9. In addition, reference numeral 20 denotes a caulking fixing part which forms a part of the fixing means 3 for fixing the socket base 1 by being locked to the socket base 1 positioned by the horizontal guide part 12, but may be omitted.
The assembly of this lighting fixture will be described. Similarly to the conventional example, the bolt hanging hole 13 of the instrument body 1 is passed through the hanging bolt 23, the outer flange 15 is engaged with the edge of the embedded hole 16 in the ceiling, and is attached to the ceiling with the nut 26. At this time, the process is performed in a state in which the electric wire 17 behind the ceiling is inserted into the opening 30. However, the electric wire 17 can be extended to fill the embedding hole 16 as shown in FIG. Work space for bolt suspension work can be widened. Then, the electric wire 17 is pulled down to the front side of the ceiling using the space of the lower opening 30 of the side plate 2c between the mounting legs 2b of the appliance main body 2, whereby the electric wire 17 can be easily connected to the terminal block 4 to facilitate construction. Next, the guided part 6 of the socket base 1 is inserted into the instrument body 1 along the vertical guide part 11. When the socket base 1 hits a stopper (not shown) provided on the appliance main body 2 at a predetermined upper position, the socket base 1 moves in a horizontal direction away from the mounting screw 21 along the horizontal guide portion 12, and the second guide protrusion 6b Enters the slide groove portion 12a of the horizontal guide portion 12, the movement in the vertical direction is restricted, and is locked to the bottom of the slide groove portion 12a. At this time, when the head 21a of the mounting screw 21 passes through the large-diameter portion 8b of the daruma hole 8 and the socket base 1 moves in a direction away from the mounting screw 21 along the horizontal guide portion 12, the small diameter of the daruma hole 8 becomes smaller. The portion 8a moves to the mounting screw 21, and is temporarily supported by the slide groove portion 12a and the mounting screw 21 so that the socket base 1 does not drop. Next, when the mounting screw 21 is tightened as it is, the socket base 1 is fixed in the state shown in FIG. Further, the lamp socket 5 is positioned at a predetermined position in the instrument body 2. Then, the attachment piece 16 of the reflection plate 28 is engaged with the hole 10 of the spring engagement piece 9 and attached.
[0014]
According to this embodiment, since the electric wire 17 to be pulled down through the embedded hole 16 in the ceiling only needs to be located in the opening 30 of the appliance main body 2, the mounting operation of the appliance main body 2, in particular, the work of fixing to the hanging bolt 23 with the nut 26. The work becomes easy, the workability for mounting the equipment can be improved, and there is no need to increase the size. In addition, when the terminal block 4 to which the electric wire 17 is attached is attached to a predetermined position, the electric wire 17 moves from the opening 30 to the electric wire insertion hole 18 so that the electric wire 17 can be constructed without much concern for the strength of the electric wire itself. Do not apply excessive force and do not apply stress to the wires themselves and the connections.
[0015]
Further, the guided part 6 of the socket base 1 is guided by the vertical guide part 11 of the appliance main body 2 to insert the socket base 1 into the appliance main body 2, and then the socket base 1 is moved along the horizontal guide part 12. It is positioned by moving and fixed by the fixing means 3. Therefore, the work of fixing the socket base can be facilitated without increasing the size.
[0016]
When the socket base 1 is moved along the vertical guide portion 12, the head 21a of the mounting screw 21 enters the large-diameter portion 8b of the burrow hole 8, and when the socket base 1 is moved along the horizontal guide portion 12, the mounting is started. Since the screw 21 moves to the small-diameter portion 8a of the darling hole 8, when the mounting screw 21 is tightened, the socket base 1 is fixed. For this reason, the fixing work of the socket base 1 can be further facilitated.
[0017]
As a result, the mounting position of the socket base 1 can be easily determined simply by moving the socket base 1 along the guide. Further, by tightening the mounting screw 21, the mounting screw 21 can be easily locked, and the visibility of the mounting screw 21 is improved by bringing the screw tightening position closer to the embedding hole 16.
Even when the mounting screw 21 is loosened due to the burring of the large diameter portion 8b of the darling hole 8, the socket base 1 does not move in the horizontal direction and the mounting screw 21 does not fall off. The socket base 1 does not fall and safety can be achieved.
[0018]
In addition, the provision of the vertical guide portion 11 on the instrument body 2 increases the strength of the instrument body 2. In addition, although the periphery of the instrument body 2 is often held at the construction site, the provision of the vertical guide 11 according to the embodiment eliminates the need for sharp edge processing of the cut surface of the sheet metal.
Note that the opening 30 between the mounting legs 30 should be continuous and open at least between the top 2a and the mounting position of the socket base 1 wider than the width of the electric wire 17 connected to the terminal base 4.
[0019]
【The invention's effect】
According to the lighting device of the first aspect, the electric wire to be pulled down through the recessed hole in the ceiling may be positioned at the opening of the device main body, so that the mounting operation of the device main body is facilitated, the workability of mounting the device can be improved, and There is no need to convert. Also, when the terminal block to which the wires are attached is installed in a predetermined position, the wires move from the openings to the wire insertion holes, so they can be constructed without worrying about the strength of the wires themselves and apply excessive force to the wires themselves. No stress is applied to the wire itself and the connection.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a socket base according to an embodiment of the present invention, in which electric wires are wired before mounting the socket base.
FIG. 2 is an exploded perspective view of the entire lighting fixture.
FIG. 3 is a cross-sectional view showing a ceiling construction state of the appliance body.
FIG. 4 is a perspective view of a state in which the instrument body is viewed upside down with the socket base attached.
FIG. 5 is a cross-sectional view before mounting the socket base.
FIG. 6 is a cross-sectional view showing a state where the socket base is attached to a device main body.
FIG. 7
It is a perspective view of a lighting fixture.
8 (a) is a partial plan view, and FIG. 8 (b) is an exploded perspective view, showing a mounting screw and a Daruma hole.
FIG. 9 is a cross-sectional view showing a state in which a conventional lighting fixture is installed.
FIG. 10 is a perspective view of the socket base.
FIG. 11 is a sectional view showing a wiring state of a conventional socket base.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Socket stand 2 Instrument main body 2a Top part 2b Mounting leg 2c Side plate 4 Terminal block 5 Lamp socket 17 Electric wire 18 Electric wire insertion hole 30 Opening

Claims (1)

A top plate having a pair of mounting legs that hang down from the top to form an opening between the top and a side plate that hangs shorter than the mounting legs from the top at the opening; An appliance body having an electric wire insertion hole cut out toward it and attached to an embedded hole in the ceiling, and an electric wire pulled down from behind the ceiling through the opening of the appliance body are connected, and the electric wire is inserted through the electric wire. A lighting fixture comprising: a terminal block mounted in the fixture main body so as to be located in the hole.

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