JP2010244989A - Lighting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting apparatus capable of surely grounding a reflecting plate. <P>SOLUTION: A fluorescent lamp 21 is lighted by supplying power from a power supply terminal table 25 installed in an apparatus body 20 to a lighting device 24 and supplying power to a socket 22 attached to the apparatus body 20 through a socket adapter 26. A reflecting plate 23 is installed between two opposed faces 204, 204 of the apparatus body along a fluorescent lamp 21 in order to irradiate downward light emitted upward from the fluorescent lamp 21. Furthermore, a pawl part 206 which projects to inside and contacts the reflecting plate 23 is provided between the opposed two faces 204, 204 of the apparatus body 20. Thereby, the reflecting plate 23 and the apparatus body 20 are in direct conduction through the pawl 206, and thereby, the reflecting plate 23 can be grounded surely. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a lighting fixture in which a reflector is attached between two opposing surfaces of a fixture body.

Conventionally, in a luminaire, it is common to provide a reflecting plate that reflects light from a fluorescent lamp in a predetermined direction (see, for example, Patent Document 1).
In the lighting fixture described in Patent Document 1, a socket base is attached to the front surface of the fixture body, and a lamp socket for mounting a fluorescent lamp is provided on the socket base. Between the socket base and the fluorescent lamp, a reflector for reflecting the irradiation light of the fluorescent lamp in the irradiation direction is provided along the longitudinal direction of the fluorescent lamp. The socket protrudes forward of the reflecting plate from a notch provided at both ends in the longitudinal direction of the reflecting plate.

JP 2001-006429 A (FIG. 1)

  By the way, in recent lighting fixtures using an inverter, grounding of a reflector has been required from the viewpoint of improving noise performance. In the lighting fixture described in Patent Document 1 described above, the reflector is provided with a claw having a tip projecting toward the fixture main body, and reflection is achieved by bringing the tip of the claw into contact with a socket base to which a socket is attached. The board is grounded.

  However, in the lighting fixture described in Patent Document 1 described above, since conduction between the reflector and the instrument main body is attempted through the socket base, direct conduction between the reflector and the instrument main body is intended. It is desirable to ground the reflector more reliably.

  The present invention has been made to solve the conventional problems, and an object thereof is to provide a lighting fixture capable of reliably grounding a reflecting plate.

  The lighting fixture of the present invention includes a socket for mounting a fluorescent lamp, a lighting device for lighting the fluorescent lamp, a power supply terminal block for supplying power, and a metal fixture main body that houses the fluorescent lamp. And the fluorescent lamp is arranged so that at least one surface of the fixture main body emits light, and a reflecting plate is provided between the two opposing surfaces of the fixture main body along the fluorescent lamp. The nail | claw which protrudes inside and contact | abuts to the said reflecting plate is provided in two surfaces of the said instrument main body.

  With this configuration, in the lighting fixture according to the present invention, power is supplied to the lighting device from the power terminal block provided on the fixture body, and power is supplied to the socket attached to the fixture body via the socket adapter. Turn on the fluorescent lamp. In order to irradiate light emitted upward from the fluorescent lamp downward, a reflecting plate is provided between two opposing surfaces of the instrument body along the fluorescent lamp. Moreover, the nail | claw which protrudes inside and contact | abuts a reflecting plate is provided in two surfaces which an instrument main body opposes. For this reason, since a reflecting plate and an instrument main body conduct | electrically_connect directly through a nail | claw, a reflecting plate can be earth | grounded reliably.

  Moreover, the lighting fixture of this invention has the structure which the said nail | claw has an inclined surface so that protrusion amount may become large as it goes to the direction which mounts | wears with the said reflecting plate.

  With this configuration, since the protruding amount of the inclined surface of the nail increases in the direction in which the reflecting plate is mounted, the inclined surface of the nail surely contacts the reflecting plate when the reflecting plate is attached to the instrument body. For this reason, the reflector can be reliably grounded. In addition, even when the electric wire rides on the claw when the reflective plate is mounted, it is pushed up by the reflective plate, so that the electric wire can be prevented from being caught.

  In the present invention, in order to irradiate light emitted upward from the fluorescent lamp downward, a reflector is provided between two opposing surfaces of the instrument body along the fluorescent lamp. Moreover, the nail | claw which protrudes inside and contact | abuts a reflecting plate is provided in two surfaces which an instrument main body opposes. For this reason, since a reflecting plate and an instrument main body conduct | electrically_connect directly through a nail | claw, the lighting fixture which has the effect that a reflecting plate can be earth | grounded reliably can be provided.

The perspective view which shows the lighting fixture concerning embodiment of invention Exploded perspective view of lighting fixture The perspective view which shows the socket attached to the instrument body Exploded perspective view showing socket mounting structure The perspective view which shows the attachment structure of the adapter for sockets (A) is a perspective view which shows the protrusion part of the adapter for sockets, (B) is sectional drawing which shows the nail | claw part provided in the protrusion part Sectional drawing which shows the state which bent the protrusion part The perspective view which shows the attachment structure of a reflecting plate and an instrument main body (A) is a cross-sectional view at a position IX-IX in FIG. 1 showing a state where the reflector is attached at a normal position, and (B) is a cross-sectional view showing a state where the reflector is displaced in the width direction. (A)-(C) is process drawing which shows the attachment work of a reflecting plate Side view showing the case where the reflector is displaced in the longitudinal direction of the instrument body (A) is a side view showing a state where the electric wire comes into contact with the claw, and (B) is a side view showing a state where the reflector pushes up the electric wire.

Hereinafter, the lighting fixture of embodiment of this invention is demonstrated using drawing.
1 is a perspective view showing a lighting fixture according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the lighting fixture, FIG. 3 is a perspective view showing a socket attached to the fixture body, and FIG. 4 is a socket mounting structure. FIG. 5 is a perspective view showing the mounting structure of the socket adapter, FIG. 6 (A) is a perspective view showing a protruding portion of the socket adapter, and FIG. 6 (B) is a BB position in FIG. FIG. 7 is a sectional view showing a state in which the protruding portion is bent, FIG. 8 is a perspective view showing a mounting structure of the reflecting plate and the instrument body, and FIG. 9A is a drawing showing that the reflecting plate is attached at a normal position. 1 is a cross-sectional view at the position IX-IX in FIG. 1, FIG. 10B is a cross-sectional view showing a state where the reflector is displaced in the width direction, and FIGS. FIG. 11, FIG. 11 is a side view showing the case where the reflector is displaced in the longitudinal direction of the instrument body, and FIG. Side view showing a contacting state to the nail, (B) is a side view showing a state in which the reflection plate pushes up the wire.

  As shown in FIG. 1 and FIG. 2, a lighting fixture 10 according to an embodiment of the present invention can be used by being embedded in, for example, an opening 12 for a lighting fixture provided in a ceiling 11 that is a mounted portion. Inside the opening 12 of the ceiling 11, a power line 13 connected to a commercial power source arranged in the back of the ceiling and mounting bolts 14 (two in this case) attached to a strength member on the back of the ceiling are arranged. Yes.

  The lighting fixture 10 has a rectangular box-like fixture body 20 that is open at the bottom, and is fitted into the opening 12 of the ceiling 11. For example, a pair of straight tube fluorescent lamps 21 and 21 are arranged along the longitudinal direction at both ends in the inner surface width direction of the top plate 201 of the instrument body 20. An attachment hole 208 is formed in the instrument body 20, and the attachment bolt 14 is inserted and fastened with a nut 141 to be attached to the opening 12 of the ceiling 11.

  Two pairs of sockets 22, 22 for attaching each fluorescent lamp 21 are attached to the vertical wall 204 at the end in the longitudinal direction, which is two opposing surfaces of the instrument body 20. Between the two fluorescent lamps 21, a mountain-shaped reflector 23 protruding downward along the longitudinal direction of the instrument body 20 is attached, and the reflector 23 is attached to a plurality of reflectors provided on the instrument body 20. It is attached to the hole 203. The reflector mounting hole 203 is formed by slitting the top plate 201 of the instrument body and pushing it downward (upward in FIG. 8) (see FIG. 8).

  A ballast 24 that is a lighting device for lighting the fluorescent lamp 21 and a power supply terminal block 25 for supplying power by being connected to the power supply line 13 are provided in the central part in the inner surface width direction of the top plate 201 of the instrument body 20. It is attached. The power supply terminal block 25 is connected by drawing the power supply line 13 from the power supply hole 202 provided in the top plate 201. The ballast 24 is connected to the power terminal block 25 by an electric wire (not shown), and further connected to each socket 22. In addition, the ballast 24, the power supply terminal block 25, the electric wire, and the like are accommodated inside the reflection plate 23 so that they cannot be seen from the outside.

  Thus, the fluorescent lamp 21 mounted by supplying power to the ballast 24 from the power terminal block 25 provided in the instrument body 20 and supplying power to each socket 22 attached to the instrument body 20 is provided. Light up. Here, the fluorescent lamp 21 emits illumination light at least downward.

Next, the mounting structure of the socket 22 will be described in detail.
As shown in FIGS. 3 and 4, the socket 22 is attached to the instrument body 20 via a socket adapter 26. The socket 22 is made of resin, and has a terminal portion 222 that supplies power in contact with a lamp pin (not shown) of the fluorescent lamp 21 at the center of the front surface 221. A pair of protrusions 223 are provided behind the socket 22, and the sockets 22 are attached by inserting the protrusions 223 into attachment holes 261 provided in the socket adapter 26.

  As shown in FIG. 5, the socket adapter 26 is formed by bending a thin metal plate, and a pair of tongue-shaped protrusions 263 protruding backward are provided on the back side 262. As shown in FIG. 6, a claw portion 264 is provided on the lower surface of the protruding portion 263 by cutting and raising in a direction perpendicular to the protruding direction (that is, downward). For example, the claw portion 264 is formed by providing a U-shaped slit in the protruding portion 263 and bending the inside of the slit downward (in the direction of arrow A in FIG. 6B) around one side 265. At this time, it is desirable to remove at least the coating on the tip 266 of the claw portion 264. The height H1 from the surface (upper surface) of the protrusion 263 to the tip of the claw 264 is substantially equal to the height H2 of the adapter mounting hole 205 provided in the vertical wall 204 of the instrument body 20.

  With reference to FIGS. 4-7, the operation | work which attaches the socket 22 to the instrument main body 20 is demonstrated. As shown in FIG. 4, the protrusion 223 of the socket 22 is inserted into the mounting hole 261 of the socket adapter 26, and the socket 22 is attached to the socket adapter 26 to be integrated. Next, as shown in FIG. 5 and FIG. 6B, the protruding portion 263 of the socket adapter 26 is inserted into the adapter mounting hole 205 provided in the vertical wall 204 of the instrument body 20, and at least the claws are inserted. The part 264 is led out to the back side of the vertical wall 204. Then, as shown in FIG. 7, the protruding portion 263 is bent toward the side where the claw portion 264 protrudes (arrow A in FIG. 7), and is bent until the tip 266 of the claw portion 264 contacts the vertical wall 204.

Next, the mounting structure of the reflecting plate 23 will be described in detail.
As shown in FIGS. 2 and 8, the reflecting plate 23 has a mountain-shaped reflecting surface 231 that protrudes downward in the irradiation direction (upward in FIG. 8), and on both the left and right sides of the reflecting surface 231, A horizontal mounting surface 232 that contacts the top plate 201 of the instrument body 20 is provided over substantially the entire length in the longitudinal direction of the instrument body 20. Locking pieces 233 are provided on the mounting surface 232 at a predetermined interval. As shown in FIG. 8, the locking piece 233 is formed in a tongue shape between the slits 234 by providing a pair of slits 234 and 234 at predetermined intervals from the end of the mounting surface 232.

  On the other hand, as shown in FIG. 2 to FIG. 4 and FIG. 206 are provided. The claw 206 is provided so as to protrude to the inside of the instrument main body 20, and in a direction in which the reflector 23 is attached (that is, a direction toward the top plate 201 of the instrument main body 20, and upward in FIG. 9A). The inclined surface 207 is provided so that the protruding amount increases as it goes.

  As shown in FIG. 9 (A), for example, the claw 206 is provided with slits 208 and 209 having two square sides on the vertical wall 204 of the instrument body 20, and the instrument body 20 with the other side as a base line. It can be formed by bending inward. By forming the slit 208 and the slit 209 toward the center of the instrument body 20 in the width direction, the slit 208 and the slit 209 are concealed inside the reflection plate 23, and thus the appearance is not impaired. Since the claw 206 is cut and raised, the inclined surface 207 is not covered with a coating such as paint. However, in order to ensure conduction, the inclined surface 207 and the coating around the inclined surface 207 are removed. It is desirable to keep it.

  At this time, the length of the upper slit 208 is the protrusion amount of the claw 206. Further, the interval between the pair of claws 206 and 206 is an interval at which a part of the claw 206 contacts the inner surface of the reflection surface 231 of the reflection plate 23 when the reflection plate 23 is attached to the top plate 201 of the instrument body 20. .

With reference to FIG. 10, the attachment method to the instrument main body 20 of the reflecting plate 23 is demonstrated.
First, as shown in FIG. 10A, the locking piece 233 provided on one reflection surface 231 of the reflection plate 23 is inserted into the reflection plate attachment hole 203 provided on the top plate 201 of the instrument body 20. Insert (arrow A in FIG. 10A). At this time, the pair of claws 206 provided on the vertical wall 204 of the instrument main body 20 are accommodated inside the angled reflecting surface 231 at both longitudinal ends of the reflecting plate 23.

  Next, as shown in FIG. 10B, the reflective surface 231 is covered with the pair of claws 206, and the reflective surface 231 is elastically deformed so that both the mounting surfaces 232 approach each other (FIG. 10B). Middle arrow B1), the locking piece 233 provided on the reflecting surface 231 is inserted into the reflector mounting hole 203 provided in the top plate 201 of the instrument body 20 (arrow B2 in FIG. 10B).

  Thereafter, as shown in FIG. 10C, the hand is released and the locking piece 233 is pushed into the reflection plate mounting hole 203 by the elastic force of the reflection plate 23. At this time, the mountain-shaped reflecting surface 231 is displaced to the top plate 201 side by the elastic force of the reflecting plate 23 (arrow C in FIG. 10C), so that the inner surface of the reflecting surface 231 is pressed against the claw 206.

Even when the reflecting plate 23 is displaced in the width direction when the reflecting plate 23 is attached, at least one of the claws 206 is in contact with the reflecting plate 23 as shown in FIG.
Further, even when the reflecting plate 23 is displaced in the longitudinal direction, as shown in FIG. 11, the reflecting plate 23 contacts one of the claws 206 in the longitudinal direction, so that conduction can be achieved.
Further, as shown in FIG. 12A, even when the electric wire 27 connecting the socket 22 and the ballast 24 is in contact with the inclined surface 207 of the claw 206, as shown in FIG. Since the reflecting plate 23 pushes up the electric wire 27 when the 23 is pushed into the top plate 201 side of the instrument body 20, it is possible to prevent the wire from being bitten.

  As described above, according to the lighting fixture 10 according to the embodiment of the present invention, the protruding portion 263 of the socket adapter 26 attached to the fixture body 20 is provided for the adapter provided in the fixture body 20. It is inserted through the mounting hole 205 and led out to the back side. And since the protrusion part 205 is bend | folded to the nail | claw part 264 side provided in the direction orthogonal to the protrusion direction of the protrusion part 205, the nail | claw part 264 is contact | abutted to the instrument main body 20, Therefore The adapter 26 for sockets is attached to an instrument main body. The socket adapter 26 can be securely grounded to the instrument body 20 while being attached to the bracket 20 to prevent rattling.

  In addition, since the covering layer covering the tip 266 of the claw portion 264 of the protruding portion 263 is removed before the protruding portion 263 is inserted into the mounting hole 205 of the device main body 20, the socket adapter 26 is securely attached to the device main body 20. Can be grounded.

  Further, the vertical wall 204, which is the two opposing surfaces of the instrument body 20, is provided with a claw 206 that protrudes inward and abuts against the reflector 23, so that the reflector 23 and the instrument body 20 are directly conducted through the claw 206. In addition, the reflector 23 can be reliably grounded without providing another component such as a screw.

  Further, since the protruding amount of the inclined surface 207 of the claw 206 increases in the direction in which the reflecting plate 23 is attached, the inclined surface 207 of the claw 206 is surely attached when the reflecting plate 23 is attached to the instrument body 20. In contact with the reflector 23. For this reason, the reflecting plate 23 can be reliably grounded. Further, when the reflector 23 is mounted on the instrument main body 20, even if the electric wire rides on the claw 206, it is pushed up along the inclined surface 207 by the reflector 23, so that the electric wire can be prevented from being caught.

In addition, the lighting fixture 10 of this invention is not limited to embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.
For example, in the above-described embodiment, the case where the two claws 206 are provided on the vertical wall 204 of the instrument body 20 is illustrated, but the number of the claws 206 is not limited.

DESCRIPTION OF SYMBOLS 10 Lighting fixture 20 Appliance main body 204 Vertical wall 206 Claw 207 Inclined surface 21 Fluorescent lamp 22 Socket 23 Reflector 24 Stabilizer (lighting device)
25 Power terminal block

Claims (2)

A socket for mounting a fluorescent lamp;
A lighting device for lighting the fluorescent lamp;
A power terminal block for supplying power;
A metal instrument body that houses the fluorescent lamp,
The fluorescent lamp is a lighting fixture arranged to emit at least one surface of the fixture body,
Providing a reflector across the two opposite surfaces of the instrument body along the fluorescent lamp;
2. A lighting fixture, wherein a claw that protrudes inward and contacts the reflection plate is provided on two surfaces of the fixture main body.   The lighting device according to claim 1, wherein the claw has an inclined surface so that a protruding amount increases as it goes in a direction in which the reflector is mounted.

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