JPH07335006A - Luminaire - Google Patents

Abstract

PURPOSE:To provide such a luminaire easy-to-assemble and capable of passing a lamp socket through a socket through-hole when mounting a reflecting plate thereon. CONSTITUTION:A socket mounting 15 has the hook edge 16 through a mounting hole 13 in a mainbody 11 and locked to the back of the mainbody 11, so that it can be mounted on the mainbody 11 to be rotationally moved around the hole 13. A luminaire is such that a lamp socket 19 mounted on the mounting 15 is inserted through a socket through-hole 22 formed in a reflecting plate 21 sectionally V-shaped to cover the mainbody 11 at the downside. Plate springs 20 are mounted on the inside faces at both longitudinal ends of the mainbody 11. The plate springs 20 have both ends provided with push edges 20a to push up the hook edge 16 through the mounting hole 13. The plate springs 20 allow a center-to-center distance E between a pair of sockets 19 mutually spaced apart to the cross direction of the mainbody 11 to be held equal to a center-to- center distance G between a pair of through-holes 22 mutually spaced apart to the cross direction of the reflecting plate 21 before mounted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an illuminating device such as an inverted Fuji type illuminating device provided with a reflector having a pair of inclined reflecting walls which are inclined so as to approach each other toward the lower side.

[0002]

2. Description of the Related Art FIG. 4 is an exploded perspective view showing the entire construction of a conventional inverted Fuji type lighting fixture, wherein 1 is a fixture main body fixed to a ceiling surface, and 2 is both end portions in the longitudinal direction of the fixture main body 1. 3 is a lamp socket, 3 is a lamp socket, 4 is a reflector, 5 is a mounting screw, and 6 is a straight tube type fluorescent lamp.

As shown in FIGS. 5 and 6, a pair of metal fitting mounting holes 7 spaced from each other in the width direction of the main body 1 are provided at both longitudinal ends of the main body 1, respectively. Utilizing these holes 7, the respective socket attachment fittings 2 are attached at the ends of the instrument main body 1 so as to face each other in the width direction of the main body 1. That is, the socket fitting 2 has a hooking edge 2 formed by bending the upper end thereof.
It is attached to the instrument body 1 by passing a through the metal fitting attachment hole 7 from the inside of the instrument body 1 and engaging with the back surface of the instrument body 1.

The socket mounting metal fitting 2 thus mounted is rotatable about the metal fitting mounting hole 7. The lamp sockets 3 respectively attached to the respective socket fittings 2 are projected to the outside of the reflector 4 through the socket through holes 8 formed in the reflector 4, and the fluorescent lamp 6
To support.

Further, the reflection plate 4 has a pair of inclined reflection walls 4a inclined in opposite directions and has a substantially V-shaped cross section. The reflecting plate 4 covers the instrument body 1 from the lower side thereof, and passes through screw through holes provided in the vicinity of the socket through holes 7 at both ends in the longitudinal direction of the inclined reflecting wall 4a to each socket mounting bracket 2. It is attached to the instrument body 1 via a mounting screw 5 that is screwed.

[0006]

When the reflector 4 is attached to the fixture body 1 in the assembly of such a conventional lighting fixture, the reflector 4 is pushed up so as to cover up the fixture body 1 and The lamp sockets 3 are inserted into the socket through holes 8, respectively. At this time, when the respective socket mounting brackets 2 and the lamp socket 3 are rotated by their own weight, the lamp socket 3 is moved to the reflector plate 4 as shown in the left half state in FIG.
It is designed to exactly match the socket through hole 8 of the above and to face it.

[0007] However, each lamp socket 3 is connected to a terminal block mounted in the main body 1 of the equipment, a wiring cord in the equipment wired from a ballast, and lamp sockets spaced apart in the width direction of the main body 1 of the equipment. Wiring cords for migrating and the like are connected, and the bending and struts of these cords hinder the free movement of the socket fitting 2. Therefore, at least one of the lamp sockets 3 spaced apart from each other in the width direction often tilts with respect to the socket through hole 8 through which the lamp socket 3 passes, as shown in the right half state in FIG.

Therefore, the reflecting plate 4 is being attached.
6 through a narrow gap between the ceiling surface and the ceiling surface, and use a finger or the like to tilt the lamp socket 3 as shown by an arrow A in FIG. 6 so that the lamp socket 3 has a substantially vertical posture (see a chain double-dashed line in FIG. 6). It is necessary to adjust the posture while pushing and guide the lower end portion to the opposing socket through hole 8 to pass it through.

Further, even if there is a load on the wiring cord,
Since the lamp socket 3 and the socket mounting bracket 2 can be freely staggered to some extent, the pair of lamp sockets 3 spaced apart in the width direction can work well as designed with respect to the pair of socket through holes 8 through which they pass. Often do not match. Therefore, when mounting the reflector 4, it is often necessary to adjust the posture of the lamp socket 3 by pushing the lamp socket 3 with a finger or the like and guide the lower end portion to the opposing socket through hole 8 to pass it.

An object of the present invention is to provide a lighting fixture which is easy to assemble and which allows a lamp socket to be easily inserted through the socket through hole when mounting the reflector.

[0011]

In order to achieve the above-mentioned object, a lighting fixture of the present invention comprises a fixture main body having a pair of metal fitting mounting holes, which are spaced apart from each other in the width direction, at both ends in the longitudinal direction, and an upper end. And a socket mounting portion that is inclined obliquely upward from the lower end, and the hooking edge is passed from the inside of the instrument body through the fitting mounting hole to the instrument body of the instrument body. Four socket mounting brackets engaged with the back surface and mounted on the fixture body, lamp sockets mounted on respective socket mounting parts of these socket mounting brackets, and a pair of tilted sockets that are inclined toward each other toward the lower side. It has an inclined reflection wall, is attached to the instrument body from below and is attached, and the lamp socket is projected at both longitudinal ends of the inclined reflection wall. Reflectors each having a through hole, and attached to inner surfaces of both ends in the longitudinal direction of the instrument body, respectively, having upward push edges that push up the hooking edges through the metal fitting attachment holes, and The center distance between the pair of lamp sockets spaced apart from each other in the width direction of the fixture body in the state before attachment of the reflector is the center distance between the pair of socket through holes spaced apart from each other in the width direction of the reflector plate. And a leaf spring that holds the same substantially as the above.

[0012]

In the construction of the above-mentioned lighting equipment, the leaf spring is provided with its pushing edge passing through the metal fitting mounting hole of the equipment main body, and the pushing edge of this leaf spring is the pulling of the socket mounting metal fitting also passing through the metal fitting mounting hole. Abut the lower surface of the hanging edge and push up the hanging edge.

Therefore, in the state before the reflector is attached, the leaf spring forcibly urges the socket attachment fitting to which the socket is attached against the load of the wiring cord connected to the lamp socket. Then, the socket fittings spaced apart from each other in the width direction of the instrument body are displaced so that their lower end portions approach each other. As a result, the pair of lamp sockets spaced apart from each other in the width direction of the main body of the fixture have a substantially vertical posture, and the center-to-center distance thereof is set to the center-to-center distance of the pair of socket through holes spaced apart from each other in the width direction of the reflector. The socket fittings are held substantially evenly and are held so as not to sway.

Therefore, when mounting the reflector,
The pair of lamp sockets spaced apart in the width direction can be properly aligned with the pair of socket through holes spaced apart in the width direction of the reflector, thereby eliminating the need for adjusting the attitude of the lamp socket. .

Then, when the reflector is pushed up toward the main body of the fixture, the lamp sockets come into contact with the hole edges of the corresponding socket through-holes, and at the same time, the through-holes make a substantially right angle with the inclined reflection wall of the reflector. Project while changing the direction so that. At this time, since the hooking edge pushes down the pushing edge, the leaf spring is elastically deformed, and the postures of the lamp socket and the socket fitting can be changed.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Reference numeral 11 in FIGS. 1 to 3 denotes a long instrument body directly attached to the ceiling surface E. The main body 11 has a pair of side wall portions 11b facing downward and protruding from both side edges of a horizontal base wall portion 11a. Base wall 11
On the rear surface (surface on the ceiling surface E side) of a, a plurality of spacer convex portions 12 contacting the ceiling surface E are provided in a protruding manner. Inside the base wall portion 11a, a terminal block, a ballast, and other necessary parts (not shown) are attached, and a wiring cord is wired.

At both ends (only one end is shown) of the base wall portion 11a of the instrument body 11 in the longitudinal direction, a pair of metal fitting mounting holes 13 spaced apart in the width direction of the instrument body 11 are provided.
And a screw hole 14 as a fixing hole is provided between the mounting holes 13. The metal fitting mounting hole 13 is a slit-shaped elongated hole extending along the side wall 11b.

Two socket attachment fittings 15 are attached to both ends of the instrument body 11 in the longitudinal direction. These four (only two are shown) socket attachment fittings 15 have hooking edges 16 and socket attachment portions 17. The hooking edge 16 is formed by an edge portion that is bent at a right angle from the upper end of the socket fitting 15. The width of the hooking edge 16 is formed wider than the width of the metal fitting mounting hole 13. The socket mounting portion 17 is formed by bending the socket mounting bracket 15 from the lower end to the side opposite to the hooking edge 16 in an obliquely upward direction.

These socket attachment fittings 15 have hooking edges 16 from the inside of the instrument body 11 to the attachment fitting holes 13.
Through the base wall portion 11a.
Are attached to the instrument main body 11 by hooking and engaging the back surface of the instrument. Therefore, each socket mounting member 15 is mounted so as to be rotatable around the instrument mounting hole 13, respectively.

A socket mounting hole 17a (see FIG. 1) is formed in each socket mounting portion 17, and a screw hole 18 is formed near the hole 17a. The lamp socket 1 is attached to these mounting portions 17.
9 are attached respectively. The lamp socket 19 has groove grooves 19a provided on both side surfaces thereof in the socket mounting hole 17a.
By fitting it to the hole edge of
It is mounted at right angles to the lower side of the car.

A straight tube type fluorescent lamp (not shown) is detachably mounted between the lamp sockets 19 opposed to each other in the longitudinal direction of the instrument body 11. Also, a wiring cord (not shown) provided in the fixture is connected to each lamp socket 19. Reference numeral 19b in FIGS. 3 and 4 indicates a connection hole into which a wiring cord is inserted and connected.

Leaf springs 20 are attached to both longitudinal ends of the base wall portion 11a of the instrument body 11, and a reflector plate 21 is attached to the instrument body 11 so as to cover the instrument body 11 from below.

The reflection plate 21 has a pair of inclined reflection walls 21a which are inclined so as to come closer to each other toward the lower side, and the cross section thereof has, for example, a substantially V shape. Further, 21b in FIG. 1 is an end plate of the reflection plate 21, and 21c is a knockout portion punched out when the feed wiring is performed. At both ends (only one end is shown) in the longitudinal direction of the inclined reflection wall 21a of the reflection plate 21, socket through holes 22 each having a rectangular shape are provided, and through holes 23 are provided in the vicinity thereof.
Is provided. The hole edge portion 22a of the socket through hole 22 is projected toward the back side of the reflection plate 21 by the flange processing, whereby the socket through hole 22 is formed in a short square pipe shape.

The reflector 21 is arranged so as to cover the fixture main body 11 to which the lamp socket 19 is attached from below, and after the corresponding lamp sockets 19 are inserted into the socket through holes 22, respectively, the through holes 23 are passed through. It is attached to the instrument body 21 via a decorative screw 24 that is screwed into the screw hole 18.

The leaf spring 20 is formed by providing upwardly bent pushing edges 20a at both ends in the longitudinal direction of a strip-shaped spring leaf material having an extremely simple structure. The leaf spring 20 has a pair of metal fitting mounting holes 13 corresponding to the widthwise direction of the instrument body 11 with the pushing edges 20a inserted therein, respectively, and the instrument body 11 is screwed into the screw hole 14 through a screw 25 as a fixture. Are attached to the inner surfaces of both ends in the longitudinal direction, respectively.

The leaf spring 20 is provided across the hooking edges 16 of the pair of socket mounting members 13 spaced apart from each other in the width direction of the instrument body 11, and biases the hooking edges 16 upward. This urging force is greater than the resistance against the rotation of the socket fitting by the wiring cord (not shown).

Due to the bias of the leaf spring 20, the reflector 21
Before mounting, the pair of lamp sockets 19 facing each other in the width direction of the appliance body 11 are located at predetermined positions such that the rounded lower ends thereof are smoothly passed through the socket through holes 22 of the reflection plate 21. It is positioned. In other words, the leaf spring 20 may be the device body 11 as shown in FIG.
The center-to-center distance G of the pair of lamp sockets 19 spaced apart from each other in the width direction is kept substantially equal to the center-to-center distance H of the pair of socket through holes 22 spaced from each other in the width direction of the reflection plate 21. . The center-to-center distance G may be slightly larger than or the same as the center-to-center distance H, but it is preferable that the center-to-center distance G is slightly smaller than the center-to-center distance H as shown in FIG.

Next, the luminaire main body 11 of the luminaire having the above construction
Is a state in which a socket mounting bracket 15 to which a lamp socket 19 is mounted is attached, and a leaf spring 20 for urging a pair of the socket mounting brackets 15 which are spaced apart in the width direction of the instrument body 11 is mounted. Then, it is directly attached to the ceiling surface E.

In this state, the weights of the socket mounting member 15 and the lamp socket 19 prevent the wiring cords from interfering with the socket mounting member 15 and the lamp socket 19 is oriented in the vertical direction.
In addition to attempting to rotate with the fulcrum as a fulcrum, the hooking edge 16 of the socket fitting 15 is urged by the urging force of the leaf spring 20.
Is pushed up, the socket mounting bracket 15
Is forcibly rotated about the metal fitting mounting hole 13 as a fulcrum regardless of the load of the wiring cord.

As a result, the center-to-center distance G of the pair of lamp sockets 19 spaced apart from each other in the width direction of the fixture body 11 is such that the pair of socket through holes 22 spaced apart from each other in the width direction of the reflection plate 21.
Is kept substantially equal to the center-to-center distance H of. This state is shown in Figure 3.
Is shown in.

In addition, since the pair of socket fittings 15 thus rotated are maintained by the urging force of the leaf springs 20, the respective socket fittings 15 are inadvertently damaged by external vibration or the like. It is prevented that the lamp socket 19 pivots and sways.

When the reflector 21 is attached to the fixture body 11 mounted on the ceiling surface E, one of the pair of socket through holes 22 spaced apart in the width direction of the reflector 21 is connected to one lamp. When the sockets 19 are aligned directly below the sockets 19 and face each other, the other socket through hole 22 is also connected to the other lamp socket 1.
9 is directly below and is opposed.

That is, the pair of socket through holes 22 spaced apart in the width direction of the reflection plate 21 can be easily aligned with the rounded lower ends of the pair of lamp sockets 19 spaced apart in the width direction of the instrument body 11. And at that time,
The lamp socket 19 is pushed laterally through the narrow gap between the reflection plate 21 and the ceiling surface E, and the troublesome work of adjusting the position of the socket 19 is not required.

Therefore, when the reflection plate 21 is further pushed up so as to be in contact with the ceiling surface E, the rounded lower end portion of the lamp socket 19 is located directly below the socket through hole 22 just opposite thereto.
Is smoothly introduced, and then the lamp socket 19 smoothly passes through the socket through hole 22. In this case, since each lamp socket 19 passes while rubbing the lower hole edge portion of the hole edge portion 22a of the socket through hole 22, the lamp socket 19 is gradually inclined by the guide action at the hole edge portion 22a. Is converted to project in a direction substantially perpendicular to the inclined reflection wall 21a. At this time, the hooking edge 16 of the socket mounting member 15 pushes down the pushing edge 20a while elastically deforming the leaf spring 20, so that the above-described posture changes of the lamp socket 19 and the socket mounting member 15 are allowed.

Further, the reflection plate 21 is fixed to the socket fittings 15 via the decorative screws 24 with the upper end thereof in contact with the ceiling surface E. As described above, the reflector 21
Is attached to the instrument body 11 by covering it from below. This state is shown in FIG.

As described above, in the lighting fixture of this embodiment, when the reflector 21 is attached, it is necessary to manually adjust the posture of the lamp socket 19 and properly guide it through the socket through hole 22 of the reflector 21. Since the lamp socket 19 can be easily passed through the socket through hole 22 of the reflection plate 21, the reflection plate 21 can be easily attached.

Moreover, in the assembled state, each lamp socket 19 is fitted with the leaf spring 2 through the socket fitting 15.
The urging force of 0 is received in the direction of the arrow D in FIG. 2 and is pressed against the inner and lower hole edge portions of the hole edge portions 22a of the socket through holes 22. Therefore, there are few fluctuations due to vibration,
Therefore, a fluorescent lamp (not shown) can be stably supported.

Further, since each socket through hole 22 has a hole edge portion 22a formed by flange processing and is formed in a short rectangular tube shape, its strength is large. Therefore, as the lamp socket 19 described above is inserted, the socket 1
Even if 9 hits the edge of the socket through hole 22,
The deformation accompanying it can be prevented. Therefore, the reflector 21
Can be formed using a thin steel plate, which can reduce the cost and reduce the weight. 4 to 6
When the socket through hole does not have any reinforcing structure as in the conventional example shown in Fig. 3, the hole edge is easily deformed by the lamp socket. It needs to be thick, which increases cost and weight. However, such a problem can be solved by the configuration of this embodiment as described above.

Further, since the socket through hole 22 has a flange-shaped hole edge portion 22a, when the lamp socket 19 passes through the through hole 22a while rubbing as described above, the lamp socket 19 is inclined. It smoothly passes through the bent portion of the hole edge portion 22a, not the cut end surface of the socket through hole 22 formed in the reflection wall 21a. Therefore, it is possible to prevent the lamp socket 19 from being scratched by the cut end surface. In the case of the conventional example shown in FIGS. 4 to 6, when the lamp socket passes through the socket through hole, contact between the socket and the cut end surface forming the hole edge of the socket through hole is unavoidable. Although the lamp socket is easily scratched, such a problem can be solved in the present embodiment as described above.

The present invention is not limited to the above embodiment. For example, the present invention is not limited to a luminaire having a reflection plate having a substantially V-shaped cross section, and the lower ends of a pair of inclined reflection walls that are inclined so as to approach each other toward the lower side are integrally connected by a horizontal lower reflection wall. It can also be applied to a lighting device equipped with a reflector.

Further, in the above-described embodiment, in order to reduce the number of leaf springs used and the number of attachment steps, a pair of socket attachment fittings spaced apart in the width direction of the instrument body are urged by one leaf spring. However, instead of this, the leaf springs may be separately provided for each of the pair of socket attachment fittings spaced apart in the width direction of the instrument body.

[0042]

As described in detail above, according to the luminaire of the present invention, the leaf springs for urging the pair of socket mounting brackets spaced apart in the width direction of the luminaire body are attached to the luminaire body. Before mounting the reflector, make the center distance between the pair of lamp sockets spaced apart in the width direction of the fixture body approximately equal to the center distance between the pair of socket through holes spaced apart in the width direction of the reflector. Moreover, since the socket mounting bracket and the lamp socket are elastically held so that they do not sway, when mounting the reflector,
It is not necessary to manually adjust the posture of the lamp socket to guide it through the socket through hole of the reflector, and the lamp socket can be easily inserted through the socket through hole of the reflector. Therefore, it is possible to provide a lighting fixture that can be easily assembled.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a configuration of a main part of a ceiling-mounted type lighting fixture according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a configuration of a main part of a ceiling-mounted type lighting fixture according to the embodiment.

FIG. 3 is a cross-sectional view illustrating an operation of attaching a reflection plate of the ceiling-mounted lighting fixture according to the embodiment.

FIG. 4 is an exploded perspective view showing the structure of the entire ceiling-mounted type lighting fixture according to a conventional example.

FIG. 5 is a cross-sectional view showing a configuration of a main part of a ceiling-mounted type lighting fixture according to the conventional example.

FIG. 6 is a cross-sectional view illustrating an operation of attaching a reflection plate of the ceiling-mounted type lighting fixture according to the conventional example.

[Explanation of symbols]

 11 ... Instrument main body, 13 ... Metal fitting mounting hole, 15 ... Socket mounting metal fitting, 16 ... Hooking edge, 17 ... Socket mounting part, 19 ... Lamp socket, 20 ... Leaf spring, 20a ... Push edge, 21 ... Reflector, 21a ... Inclined reflective wall, 22 ... Socket through hole.

Claims (1)

[Claims] 1. A device main body having a pair of metal fitting mounting holes, which are spaced apart from each other in the width direction, at both ends in the longitudinal direction, and a hooking edge bent at the upper end.
It has a socket attachment portion that is inclined obliquely upward from the lower end, and is attached to the instrument body by engaging the hooking edge from the inside of the instrument body through the metal fitting attachment hole with the back surface of the instrument body. Which has four socket mounting brackets, a lamp socket mounted on each socket mounting portion of these socket mounting brackets, and a pair of inclined reflecting walls that are inclined so that they approach each other toward the lower side, and A reflector plate which is attached so as to cover it from below and has socket through holes through which the lamp socket is projected at both ends in the longitudinal direction of the inclined reflection wall, and inner surfaces of both ends in the longitudinal direction of the instrument body. Attached to the
Between the centers of the pair of lamp sockets that have an upward pushing edge that pushes up the hooking edge through the metal fitting mounting hole, and that are spaced apart in the width direction of the fixture body before the reflector is mounted. A luminaire comprising: a leaf spring that maintains a distance substantially equal to a center-to-center distance between a pair of the socket through holes that are spaced apart from each other in the width direction of the reflector.