JPH0877821A - Lighting fixture with guard - Google Patents

Abstract

PURPOSE: To guard a fluorescent lamp suspended on the bottom face of a fixture main body in the lighting fixture with a reflection shade which is provided with a band reflection shade of approximate arc section in a position above the fluorescent lamp. CONSTITUTION: Upper parts 16 are formed narrower than a reflection shade 11 in the side edges 14 of the band reflection shade 11 which is provided along the upper position of a fluorescent lamp 4 suspended in the bottom face of a fixture main body 3. A guard body 15 of recessed section to which lock parts 17 for engaging a reflection shade 11, which is bent, with the inside wall of the upper parts 16 a stopper parts 18 for abutting the bottom face of the reflection shade 11 on the bottom part of the lock parts 17 are formed, is detachably mounted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture for a fluorescent lamp laid in a gymnasium, a construction site, etc., and in particular, a reflector with a reflector placed on the body of the fixture to improve the illuminance directly below the fluorescent lamp. The present invention relates to a guard body mounting structure for equipment.

[0002]

2. Description of the Related Art This kind of lighting equipment laid in gymnasiums and construction sites may damage the lamps due to balls in the competition and materials during work hitting the lighting equipment and injuring athletes and workers. . For this reason, in lighting equipment installed in gymnasiums and construction sites, a protective guard body is provided around the outer circumference of the lamp so that the fluorescent lamp is not damaged by external factors.

For example, FIGS. 4 (a) and 4 (b) are examples of lighting fixtures for emergency lights with guards and straight tube fluorescent lamps with guards, which are laid in gymnasiums and construction sites.
The former is one in which a mesh-shaped guard body 2 is arranged around the housing of an ordinary emergency lighting device 1, and the latter is a pair of lamp sockets 5 for mounting the straight tube fluorescent lamps 4 on both ends of the lower surface of the device body 3. 5, a mesh-shaped guard body 6 is provided on the front surface of the projection 5, and the surroundings of the equipped fluorescent lamp 4 are covered.

In any of the luminaires with a guard having such a structure, a fluorescent lamp of the luminaire is covered with a mesh-shaped guard body formed of iron wire or the like, and balls during competition or materials under construction are covered by the casing of the luminaire. It protects the body and the fluorescent lamp from being damaged.

[0005]

However, the above-mentioned conventional lighting device with a guard has a complicated mounting structure for the guard body, and the mounting and removal of the lighting device on the lighting device is troublesome. Therefore, the work of laying the lighting fixture with the guard on the building and the work of replacing the lamp have been complicated.

That is, in the former emergency light, a mounting piece 7 is arranged at the base of a mesh-shaped guard body 2, and the emergency lighting fixture 1 is mounted on a building 8 as shown in FIG. After
The guard body 2 was fitted from the front side and the mounting piece 7 was fastened by passing the screw 9 through it. For this reason, it is necessary to fix the emergency lighting device 1 and the guard body 2 to the building structure 8 by overlapping them, and the construction is complicated, and the structure of the guard body 2 is complicated and expensive.

In the latter lighting fixture, a fitting 10 for mounting the guard body 6 is separately provided, and this fitting 10 is shown in FIG.
As shown in (b), the building body 8 and the instrument body 3 were fastened together with screws 9, and the guard body 6 was fastened and fixed to the metal fitting 10. This luminaire does not require the guard body 6 to be attached to the building 8 overhanging, but the mounting bracket 1
It is necessary to separately install 0, and accordingly, the lighting fixture with a guard is expensive.

[0008] Generally, in a gymnasium or a construction site,
As shown in FIG. 6, a box-shaped fixture body 3 having a pair of lamp sockets 5 for suspending a straight tube fluorescent lamp 4 on both ends of the lower surface is provided with a substantially arc-shaped cross section along the upper position of the fluorescent lamp 4. In many cases, a strip-shaped reflection shade 11 is provided, and a lighting fixture with a reflection shade is installed to improve the illuminance directly below the fluorescent lamp 4.

Therefore, according to the present invention, in a lighting fixture with a reflection shade in which a strip-shaped reflection shade having a substantially arcuate cross section is arranged above a straight tube type fluorescent lamp, the fluorescent lamp suspended on the lower surface of the fixture body is easy and simple. It is an object of the present invention to provide a lighting device with a guard that can be covered.

[0010]

Therefore, according to the present invention, a guard body having a substantially concave cross section is detachably attached to a side edge of a strip-shaped reflector, and the lower side of a straight tube fluorescent lamp is covered with the guard body. It is configured as follows. The guard body is formed of a frame body whose upper end is narrower than the width of the strip-shaped reflector, and a locking portion with which the side edge of the strip-shaped reflector is engaged is provided on the inner edge of the upper end of the frame.
The belt-shaped reflective shade is bent and engaged with the locking portion, and the elastic force is used to hold the guard body. Further, a stopper portion for restricting the upward movement of the guard body is provided at a position below the locking portion of the frame body, and the frame body is configured to be separated from the position of the straight tube type fluorescent lamp by a predetermined distance. Further, the guard body is composed of a mesh-shaped frame body in which a plurality of straight rods and arc rods are vertically and horizontally connected, and the lamp light is sufficiently irradiated to the outside and the lamp is surely protected from external objects. It is configured as follows. Specifically, it is configured as follows. That is, the lighting fixture with a guard of the present invention is provided on the side edge of the strip-shaped reflector having a substantially arcuate cross section disposed along the upper position of the straight tube fluorescent lamp suspended on the lower surface side of the elongated fixture body. The upper end portion is formed to be narrower than the reflection shade, and the lower end of the reflection shade is formed on the inner edge of the lower portion of the engagement portion where the reflection shade is bent and engaged with the inner edge of the upper end portion. The present invention is characterized in that a guard body having a concave cross section in which a stopper portion to be contacted is formed is detachably attached. Further, the guard body is composed of a mesh-shaped frame body in which a plurality of straight rods and arc rods are vertically and horizontally connected,
At least the uppermost straight rods arranged in columns are connected to the inner wall surface of the circular arc rods arranged in a row, and a stopper piece is arranged at a lower portion of the uppermost straight rods. There is.

[0011]

The guard body is attached to the main body of the instrument by locking the side edge of the bent reflector to the locking portion at the inner edge of the upper end. At the time of this locking, the side edge of the reflecting shade is applied with the elastic force generated by the bending of the reflecting shade, and is engaged with the locking part while pressing the inner wall surface of the guard body outward, and it may not fall. It is prevented from coming off. Further, the stopper piece is brought into contact with the lower surface of the reflection shade to restrict the upward movement of the mounted guard body, and the guard body is held at a predetermined distance from the fluorescent lamp.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is an exploded perspective view of a lighting device with a guard according to an embodiment of the present invention.

In the figure, reference numeral 13 is a lighting device similar to that shown in FIG. 3 in which a strip-shaped reflector 11 is arranged above the straight tube fluorescent lamp 4 suspended from the device body 3, and the present invention will solve the problem. It is a lighting device with a reflective shade.

That is, the lighting fixture 13 has a pair of lamp sockets 5 projecting from both ends of the bottom face of the elongated fixture body 3, and the straight tube fluorescent lamp 4 is suspended in parallel with the bottom face of the fixture body 3. ing. A strip-shaped reflector 11 having a substantially arcuate cross section is arranged along the upper position of the fluorescent lamp 4 to improve the illuminance immediately below the fluorescent lamp 4.

The instrument body 3 has a box-shaped structure with an opening on the lower surface.
Although not shown, lighting circuit components such as a ballast for lighting the straight tube fluorescent lamp 4, a glow tube, and a miniature ball are attached and wired to the inner wall surface on the upper surface side. Also,
The reflection shade 11 is formed by pressing a wide sheet metal part into a strip shape, and is attached to the lower surface side of the instrument body 3 with its opening closed. Further, the reflection shade 11 is formed in a substantially arcuate cross section in which both side edges 14 are inclined slightly downward, and reflects the lamp light of the straight tube fluorescent lamp 4 in a predetermined direction.

Reference numeral 15 is a side edge 14 of the reflection shade 11.
Is a guard body having a concave cross section, which is mounted on and surrounds and covers the straight tube fluorescent lamp 4 from the lower side.

An upper end 16 of the guard body 15 is detachably locked to the side edge 14 of the strip-shaped reflection shade 11 and surrounds the straight tube fluorescent lamp 4 suspended from the lower surface of the fixture body 3 from the lower surface side. It is formed into a frame structure having a concave cross section.

As shown in FIG. 2, this frame has an upper end portion 1
6 is formed to be narrower than the width of the strip-shaped reflecting shade 11 at least, and the locking portion 17 in which the strip-like reflecting shade 11 is bent and engaged inside the upper end portion 16 and a lower portion of the locking portion 17. The lower surface of the strip-shaped reflection shade 11 is abutted on the inner side of the inner surface of the stopper, and a stopper portion 18 whose upward movement is restricted is formed.

The guard body 15 is manufactured, for example, by using an iron wire as a material, and arranging the wire in a horizontal and vertical mesh shape and connecting them as follows.

That is, arc rods 19 each having an outer diameter of 2 mm formed in an arc shape are arranged in a row at a predetermined pitch, and an iron wire having an outer diameter of 3.5 mm has a predetermined length inside the arc rods 19 arranged in a row. The straight rods 20 cut into pieces are arranged in a column at a predetermined pitch, and the intersections are welded to form a frame body having a concave cross section.

A pair of straight rods 20a arranged at the uppermost stage,
20a, which protrudes inside the circular arc bar 19,
The locking portions 17 and 17 of FIG. That is, this locking portion 1
7, the distance D between the straight rods 20a, 20a is formed to be about several cm narrower than the width of the strip-shaped reflector 11.
The dimensions of each part are set so that the side edge 14 of the bent reflector 11 is elastically slidably engaged with the lower portion of the straight rod 20a. Further, an L-shaped piece 21 is welded to the inner wall of the arc-shaped rod 19 at a lower portion of the straight rod 20a with a predetermined distance d between the straight rod 20a and the stopper portion 18 which is brought into contact with the lower surface of the strip-shaped reflection shade 11. Make up. Further, both ends of the straight rod 20b arranged at the lowermost stage are bent upward at a predetermined height h so as to guard the side surface side of the lighting device 13 with a reflective shade.

The guard body 15 having such a structure is attached to the luminaire 13 with a reflector as follows.

That is, as shown in FIG. 3, the upper end 16 on one side of the guard body 15 is positioned on the side edge 14 on one side of the reflective shade 11, and the locking portion 17 is positioned on the upper side of the side edge 14. To lock it. Next, the strip-shaped reflection shade 11 is pressed and deformed,
As shown by the arrow, the locking portion 17 of the upper end portion 16 on the other side of the guard body 15 is arranged on the side edge 14 on the other side of the reflective shade 11,
When the pressing of the strip-shaped reflector 11 is released, as shown by the solid line in the figure, the reflector 11 is in a bent state, the both side edges 14 slide into the lower part of the locking portion 17 of the guard 15, and the guard 15 reflects. It is attached to the shade 11 by one-touch locking.

When the guard body 15 is locked, the side wall 14 of the reflection shade 11 is locked by the elastic force generated by the bending of the reflection 11 so that the inner wall surface of the guard body 15 is pressed outward. The guard body 15 is engaged with the lower portion of the portion 17 to prevent the guard body 15 from dropping or coming off.

Further, the guard body 15 is provided with a stopper L-shaped piece 21 which is in contact with the lower surface of the reflection shade 11 at the lower portion of the locking portion 17 and is restricted from moving upward. The operation when wearing the body 15 is easy. Also, the reflective shade 1
Since the side edge 14 of No. 1 is locked between the locking portion 17 of the guard body 15 and the stopper piece 21, the distance between the guard body 15 and the fluorescent lamp 4 is maintained at a predetermined interval, and the guard body 15 mounted Even if a ball or material hits the
The fluorescent lamp 4 and the instrument body 3 can be effectively protected without being displaced upward.

To remove the guard body 15, the reflection shade 11 may be bent to disengage the engagement portion 17 at one end, and the engagement at the other end may be easily released. .

In the above-mentioned embodiment of the present invention, the guard body 15 is formed by connecting a wire material such as an iron wire to the material, but it may be formed by a resin molded product or a sheet metal part.

[0029]

As described above, according to the present invention, since the frame-shaped guard body is attached to the side edge of the reflecting shade by utilizing the elasticity of the reflecting shade, the attaching / detaching operation is extremely simple. A lighting device with a guard and a reflective shade can be easily and inexpensively constructed.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a lighting fixture with a guard according to an embodiment of the present invention.

FIG. 2 is a side view of the guard body, which is a component of FIG.

FIG. 3 is an explanatory diagram of a mounting operation of a guard body of the lighting equipment of FIG.

FIG. 4 is a conventional lighting fixture with a guard, (a) is an emergency light,
(B) is a perspective view of the lighting fixture for fluorescent lamps.

5 is a structure for mounting the luminaire shown in FIG.
(B) is a side view of the corresponding device of FIG.

FIG. 6 is a perspective view showing a configuration of a lighting device with a reflector to which the present invention is applied.

[Explanation of symbols]

 3 Instrument main body 4 Straight tube fluorescent lamp 11 Strip reflector 14 Side edge 15 Guard body 16 Upper end 17 Locking part 18 Stopper 19 Arc bar 20 Straight bar 20a Top straight bar 21 L-shaped piece (stopper One piece)

Claims (2)

[Claims] 1. A side edge of a strip-shaped reflector having a substantially arc-shaped cross section, which is disposed along the upper position of a straight tube fluorescent lamp suspended on the lower surface side of an elongated instrument body, has an upper end portion with the reflection. A locking portion formed to be narrower than the shade, the locking portion being bent and engaged with the inner edge of the upper end portion, and the stopper portion with which the lower surface of the reflection shade contacts the inner edge of the lower portion of the locking portion. A luminaire with a guard, in which a guard body having a concave cross-section formed with is attached detachably. 2. The guard body is composed of a mesh-like frame body in which a plurality of straight rods and arc rods are vertically and horizontally connected, and at least the uppermost straight rods arranged in a column are arranged in a row. The lighting device with a guard according to claim 1, wherein the lighting device with a guard is connected to the inner wall surface of the circular arc rod, and a stopper piece is provided below the uppermost straight rod.