JPH04272605A - Lighting fixture - Google Patents

Abstract

PURPOSE:To provide a lighting fixture in which it can be made sure that a reflecting plate is installed thereby preventing detachment of the reflecting plate. CONSTITUTION:A fixture 12 having a socket 11 mounted thereon is attached to both end portions of a lighting fixture main body. The elliptical hole 15 of the fixture 12 is communicated with the mounting hole 34 of a reflecting plate 31 and a locking portion 27 is passed through both of the holes while the handle portion 23 of a lock 21 is parallel to the longitudinal direction of a fluorescent lamp 24. The handle portion 23 is put in a turning movement and the locking portion 27 is locked by a locking protruding portion 18 so that the handle portion 23 is perpendicular to the fluorescent lamp 24. The outer periphery of the fluorescent lamp 24 is inscribed to the circular portion 25 of the handle portion 23 via a space therebetween. When the handle portion 23 is parallel to the fluorescent lamp 24, a reflector 31 is not securely attached to the fitting main body and hence the fluorescent lamp 24 cannot be installed.

Description

[Detailed description of the invention]

[Object of the invention]

0002

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device having a structure in which straight tube lamps are mounted in a pair of sockets.

0003

[Prior Art] In recent years, fluorescent lamps have a tube diameter of 36 m.
There are 32.5 mm, 29 mm, 25 mm, and 20 mm.

[0004] Conventionally, in lighting equipment, lamps with different tube diameters and different ratings have sometimes been used incorrectly. If lamps with different ratings are used, the lifespan will be shortened and the light output will be insufficient. In order to prevent this, it has been proposed to provide a socket with a protrusion or the like so that a lamp of an odd shape or a different rating cannot be attached.

[0005]

[Problems to be Solved by the Invention] However, this method has the problem that the socket becomes complicated and expensive.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a lighting fixture that can prevent lamps with different tube diameters from being misused.

[Configuration of the invention]

[0008]

[Means for Solving the Problems] A lighting device according to claim 1 includes a base, a pair of sockets disposed opposite to each other on the base, and a tube-shaped lamp mounted on the socket. ,
The lamp is provided on the base and allows a lamp with a predetermined tube diameter to be attached to the socket, but it comes into contact with the tube wall and prevents a lamp with a tube diameter larger than a predetermined diameter from being attached to the socket. It is equipped with a protrusion.

[0009] In the lighting equipment according to the second aspect of the present invention, the reflector is attached and fixed by inserting a fixture into the locking hole into which a fixture is attached to both ends of the lighting fixture body with sockets for attaching a straight tube-shaped fluorescent lamp. In the lighting equipment, the locking tool includes an operating section facing the outer circumferential surface of the fluorescent lamp, and a locking section that is inserted and locked into the locking hole on the opposite side of the operating section, and the locking tool includes When the lamp is attached, the operation section allows a lamp with a predetermined tube diameter to be attached to the socket, but for a lamp with a tube diameter larger than the predetermined diameter, the operation section does not allow the lamp to be attached to the socket by coming into contact with the tube wall. It is equipped with a blocking protrusion.

[0010] In the lighting device according to claim 3, a fixture having sockets for attaching straight tube fluorescent lamps attached to both ends of the lighting fixture body is inserted into the locking hole and rotated to attach the reflector. In the lighting fixture to be installed and fixed, the locking tool includes:
a concave arc-shaped part having a diameter slightly larger than the diameter of the fluorescent lamp and facing the outer circumferential surface of the fluorescent lamp with a gap therebetween; and a concave arc-shaped part that is inserted and locked into the locking hole on the opposite side of the arc-shaped part. a locking portion, the locking hole is provided with a locking protrusion near its periphery, and the central axis of the arc of the arc-shaped portion of the locking device is perpendicular to the longitudinal direction of the fluorescent lamp. The locking part of the locking tool is insertable, and when the center axis of the arc of the arc-shaped part is perpendicular to the longitudinal direction of the fluorescent lamp, the locking part of the locking tool is inserted into the locking protrusion. This locks the locking tool to prevent rotation of the locking tool.

[0011]

[Function] In the lighting device according to claim 1, when installing the lamp on the base, if the tube diameter of the lamp is less than a predetermined value, the protrusion does not come into contact with the lamp, so the lamp can be installed in the socket, but the fluorescent lamp If the diameter of the tube is larger than a predetermined value, the protrusion will come into contact with the lamp, preventing the lamp from being installed in the socket, thereby preventing misuse of the lamp.

[0012] In the lighting device according to the second aspect of the present invention, a locking tool is inserted into a locking hole of a fixture to which a socket is attached, and a reflecting plate is attached. This locking device has an operating part that faces the attached fluorescent lamp, and if the tube diameter of the fluorescent lamp is less than a predetermined value, the operating part does not come into contact with the lamp, so the fluorescent lamp can be attached to the socket. If the tube diameter of the fluorescent lamp is larger than a predetermined value, the protrusion will come into contact with the lamp, making it impossible to mount the lamp in the socket, thereby preventing misuse of the lamp.

[0013] In the lighting device of the third aspect, the reflector is attached by inserting the locking tool into the locking hole of the fixture to which the socket is attached. When installing the locking tool, first position the central axis of the arc-shaped part of the locking tool perpendicular to the longitudinal direction of the fluorescent lamp, and then insert the locking part of the locking tool into the locking hole of the fixture. do. Next, rotate the locking tool so that the central axis of the arc of the arc-shaped portion of the locking tool is located parallel to the longitudinal direction of the fluorescent lamp, and the locking protrusion provided around the locking portion prevents rotation. let Then,
The lamp is inscribed with a gap in the arc-shaped part of the locking tool,
If the locking device is not installed correctly, you will not be able to install the fluorescent lamp in the socket, so you can easily check whether the reflector is installed correctly, and also you will not be able to install a fluorescent lamp with a large diameter. Prevents differences in fluorescent lamp standards.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the lighting fixture of the present invention will be described below with reference to the drawings.

In FIG. 2, reference numeral 1 denotes a lighting fixture main body, and this lighting fixture main body 1 is approximately box-shaped with an opening 2 on the bottom surface as shown in FIGS. 3 and 4. As shown in FIG. Further, around the opening 2, a contact edge 3 is bent to contact a ceiling plate or the like.

Furthermore, end plates 4 are provided at both longitudinal ends of the lighting fixture main body 1, and the central upper part of these end plates 4 is
A power supply knockout 5 is formed so that a power cord and the like can be ejected. Further, on both sides of the knockout 5, connection holes 6 are formed for connection when the lighting fixture main body 1 is connected.

Furthermore, side plates 7 are provided on both sides of the lighting fixture body 1 in the longitudinal direction, and near both ends of the side plates 7, a plurality of mounting steps 8 are formed facing inward. It is formed.

A fitting 12 to which a socket 11 is attached is slidably attached between these mounting steps 8 from the center side of the lighting fixture body 1.

Furthermore, each of the fittings 12 is connected to a socket 1.
1 and 11 are formed, and sliding edges 14 and 14 are formed on both sides, and these sliding edges 1
The length between 4 and 14 is formed to be slightly shorter than the inner diameter of the luminaire main body 1 in the width direction. Furthermore, the mounting surface portion 13,
13 have oblong holes 15 corresponding to the sockets 11, respectively.
, 15 are perforated. And the mounting surface parts 13, 13
A protrusion 16 bent into a triangular shape is formed between them, and a wiring insertion part 17 is formed on the back surface of this protrusion 16. Furthermore, a locking protrusion 18 is formed on the back surface of the oblong hole 15 of the mounting surface portion 13 along the longitudinal portion of the oblong hole 15, as shown in FIGS. 6 and 1.

Furthermore, 21 is a locking tool, and this locking tool 21 has a disc-shaped locking surface portion 22.
A plate-shaped handle part 23 is vertically formed on the upper surface, and the upper edge of the handle part 23 has a concave arc-shaped part 25 whose diameter is slightly larger than the outer arc of the fluorescent lamp 24 attached to the socket 11.
is formed. Furthermore, a locking portion 27 is formed on the back surface of the mounting surface portion 13 via a cylindrical rotation shaft portion 26 . This locking part 27
The length in the longitudinal direction is shorter than the length in the longitudinal direction of the oblong hole 15 and longer than the length in the width direction.
It is shorter than the length of the oblong hole 15 in the width direction.

[0021] 31 is a reflector plate, and the fluorescent lamp 24
When installed, it is bent along the longitudinal direction so that the fluorescent lamp 24 is placed inward and expanded downward.

Next, the assembly of the lighting equipment will be explained.

First, the sliding edge 14 of the fixture 12 is slidably locked to the mounting step 8 of an arbitrary height, and the fixture 12 is attached to the lighting fixture main body 1. Further, near the center in the width direction of the lighting fixture main body 1, as shown in FIG. 3, an inverter 32 and a terminal portion 33 are disposed.

Furthermore, when attaching the reflector 31 to the fixture 12, the handle portion 23 is made parallel to the longitudinal direction of the lighting fixture body 1, and the attachment hole 34 of the reflector 31 and the fixture 1 shown in FIG.
The two oval holes 15 are communicated with each other, and the locking portion 27 is inserted therethrough. Then, rotate the locking tool 21 with the handle part 23, and
with the locking portion 27 perpendicular to the longitudinal direction of the lighting fixture main body 1.
is locked to the locking protrusion 18 to prevent rotation of the locking tool 21.

When the locking tool 21 is in this state, as shown in FIG.
It is circumscribed with a gap around the circumference of .

[0026] Therefore, the locking portion 27 of the locking tool 21 is
If the rotation is not prevented by the locking protrusion 18, the arcuate portion 25 of the handle 23 will come into contact with the outer periphery of the fluorescent lamp 24, making it impossible to attach the fluorescent lamp 24 to the socket 11. Therefore, the reflector 31 is not attached half-heartedly, and the fall of the reflector 31 can be prevented.

[0027] When installing the fluorescent lamp 24, in order to obtain a shading angle of 15° and to not reduce the efficiency of the lighting equipment, the ratio of the tube diameter r of the fluorescent lamp 24 to the width direction x of the lighting equipment must be adjusted. x/r must be set to 4 or more to prevent the reflection from being cut by the fluorescent lamp 24 itself.
As shown in FIG. 8, the height position of the fluorescent lamp 24 is H≧rcos 15°+(x+rsin 15°) from the opening 2.
°)tan must be set to 15°.

For example, in the case of a fluorescent lamp 24 with a radius r of 12.5 mm, if x is 50 mm, then H is 30 mm.
It is necessary to do the following.

Furthermore, when the lighting fixture bodies 1 and 1 are arranged in a connected manner, as shown in FIG. can be inserted into the hole of the power supply knockout 5, and the power supply knockout 5 can be removed and inserted into the hole of the power supply knockout 5. therefore,
Wiring is no longer pinched by the fixture 12 or the like.

Next, another embodiment will be explained with reference to FIG. In the embodiment shown in FIG.
On the front side of the fluorescent lamp 24, a notched part 41 as a protrusion is bent along the longitudinal direction of the fluorescent lamp 24, and the height of the bent part 42 at the tip of the notched part 41 is set to the tube diameter of the fluorescent lamp 24. It has been adapted.

Then, the cutout portion 41 is inserted into the insertion hole 43 drilled in the reflector 31, and the screw hole 44 of the fixture 12 is communicated with the screw insertion hole 45 of the reflector 31. The reflector 31 is attached to the fixture 12 by the following steps. Then, when trying to insert a fluorescent lamp 24 with a tube diameter larger than a predetermined value, the fluorescent lamp 24 comes into contact with the bent part 42,
The fluorescent lamp 24 cannot be inserted into the socket 11.

Further, another embodiment will be described with reference to FIG. This uses a reflector 31 shown in FIG. 1 as a base, and a socket 11 is directly attached to this reflector 31.

[0033] Then, on the front side of the socket 11, a cut-and-raised part 51 as a bridge-like protrusion is cut and raised toward the front of the reflector 31 in a direction perpendicular to the longitudinal direction of the fluorescent lamp 24. At the tip of this cut-and-raised portion 51, a planar contact surface portion 52 is formed on which the fluorescent lamp 24 comes into contact. When an attempt is made to insert the fluorescent lamp 24 having a tube diameter larger than a predetermined value into the socket 11, the fluorescent lamp 24 comes into contact with the contact surface portion 52, making it impossible to insert the fluorescent lamp 24 into the socket 11.

[0034]

According to the lighting device according to claim 1, when the lamp is mounted on the base, the protrusion does not come into contact with the lamp if the tube diameter of the lamp is less than a predetermined value, so that the lamp can be mounted in the socket. However, if the tube diameter of the fluorescent lamp is larger than a predetermined value, the protrusion comes into contact with the lamp, making it impossible to mount the lamp in the socket, thereby preventing misuse of the lamp.

According to the lighting device according to the second aspect, the locking tool is inserted into the locking hole of the fixture to which the socket is attached,
Install the reflector. This locking device has an operating part that faces the attached fluorescent lamp, and if the tube diameter of the fluorescent lamp is less than a predetermined value, the operating part does not come into contact with the lamp, so the fluorescent lamp can be attached to the socket. If the tube diameter of the fluorescent lamp is larger than a predetermined value, the protrusion comes into contact with the lamp, making it impossible to attach the lamp to the socket, thereby preventing misuse of the lamp.

According to the lighting device according to the third aspect, the center axis of the arc of the arc-shaped portion of the locking device is positioned perpendicular to the longitudinal direction of the fluorescent lamp, and the locking portion of the locking device is connected to the locking portion of the fixture. Insert the locking tool into the locking hole, rotate the locking tool, position the central axis of the arc of the locking tool parallel to the longitudinal direction of the fluorescent lamp, and insert the locking protrusion provided around the locking portion. By having a gap in the arc-shaped part of the locking tool and inscribing the lamp, the reflector can be installed accurately, and the locking tool can be prevented from rotating by the locking protrusion. Since the fluorescent lamp cannot be attached unless it is in the state where the reflector is attached, it is possible to prevent the reflector from coming off. Furthermore, it is possible to prevent the installation of non-standard fluorescent lamps.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a locking tool according to an embodiment of the present invention when it is attached to a lighting fixture body.

FIG. 2 is a partially cutaway side view showing the lighting fixture.

FIG. 3 is a top bottom view of the same.

FIG. 4 is a side view of the same as above.

FIG. 5 is a perspective view showing the above-mentioned fixture.

FIG. 6 is an exploded perspective view showing attachment of the above locking tool.

FIG. 7 is an explanatory diagram showing a case where the lighting fixture bodies are connected.

FIG. 8 is an explanatory diagram showing the ratio of the same dimensions as above.

FIG. 9 is a graph showing efficiency.

FIG. 10 is an exploded perspective view showing a part of another embodiment.

FIG. 11 is a perspective view showing a part of another embodiment.

[Explanation of symbols]

1 Lighting device main body 11 Socket 12 Mounting tool 15 serving as a base Locking hole 18 Locking protrusion 21 Locking tool 23 Handle portion 24 as a protrusion and operation portion
Fluorescent lamp 25 Arc-shaped portion 27 Locking portion 31 Reflector serving as a base

Claims (3)

[Claims] 1. A base, a pair of sockets arranged opposite to each other on this base, a tube-shaped lamp attached to the socket, and a tube-shaped lamp provided on the base and having a predetermined tube diameter. It is characterized by comprising a protrusion that allows a lamp to be attached to the socket, but that abuts against a tube wall and prevents a lamp with a tube diameter larger than a predetermined diameter from being attached to the socket. lighting equipment. 2. A lighting fixture in which a reflector is attached and fixed by inserting a fixture into a locking hole into a fixture in which a socket for attaching a straight tube fluorescent lamp is attached to both ends of a lighting fixture body, wherein the fixture The tool includes an operating section facing the outer circumferential surface of the fluorescent lamp, and a locking section that is inserted and locked into the locking hole on the opposite side of the operating section, and when the reflector is attached, the the operating section includes a protrusion that allows a lamp with a predetermined tube diameter to be attached to the socket, but abuts against a tube wall and prevents a lamp with a tube diameter larger than a predetermined diameter from being attached to the socket; A lighting fixture characterized by being equipped with. 3. A lighting device in which a reflector is attached and fixed by inserting a fixture into a locking hole and rotating a fixture to which sockets for attaching straight tube fluorescent lamps are attached to both ends of the lighting fixture body, The locking tool includes a concave arc portion having a diameter slightly larger than the diameter of the fluorescent lamp and facing the outer peripheral surface of the fluorescent lamp with a gap therebetween, and the locking hole on the opposite side of the arc portion. the locking hole is provided with a locking protrusion near its periphery, and the center axis of the arc of the arc-shaped portion of the locking tool is aligned with the longitudinal direction of the fluorescent lamp. The locking part of the locking tool can be inserted when the direction is perpendicular to the direction, and the locking part of the locking tool can be inserted when the center axis of the arc of the arc-shaped part is perpendicular to the longitudinal direction of the fluorescent lamp. A lighting fixture characterized in that the locking protrusion is locked to prevent rotation of the locking tool.