JPH1125728A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminaire, wherein reinforcing metal parts can be fixed to a reflector without usign fixing parts and fastening them by welding and wherein the reflector can be made of a color steel sheet. SOLUTION: A luminaire 2 is provided with a reflecting body 13 having a reflector 15, which has on the both sides in the width direction, upward edge parts 22 respectively bent, so as to from an inverted U-shaped cross-section and whose under surface forms an opened through shape, and reinforcing metal parts 16 fixed, along the width direction, to the outer surfaces of the both longitudinal end parts of this reflector 15. In this case, engagement end parts 16d formed by bending both ends of ech of the reinforcing metal parts 16 are caught in cutout grooves 23, openedly formed in lower ends of folded-back pieces 22a which the upward edge parts have. An intermediate part of each of the reinforcing metal parts 16 is sandwiched between bent pieces 25, bent from both the longitudinal end parts of the reflector 15 along the outer surfaces of these end parts and the longitudinal end part of the reflector 15. As a result of this, the reinforcing metal parts are adapted so as to be fixed to the reflector 15 without the use of fixing parts and fastening them through welding.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting apparatus provided with reflectors in which reinforcing metal fittings are fixed to outer surfaces of both ends in a longitudinal direction of a gutter-like reflector having an open lower surface.

[0002]

2. Description of the Related Art An open-bottom reflector provided in a ceiling-mounted lighting fixture or the like using a straight tube fluorescent lamp as a light source is generally made of sheet metal and is long according to the length of the lamp.
There is a risk of twisting. In particular, in the use as a connection-type lighting device configured by connecting a plurality of lighting fixtures in a longitudinal direction and connecting them to each other, a reflective end plate that covers an open end in a longitudinal direction of a gutter-like reflector provided in a reflector is removed. Therefore, when adjacent reflectors are connected to each other, there is no reflective end plate at the connecting portion between the reflectors, so that the strength of the longitudinal end of the reflector is reduced. Increase. Therefore, a reinforcing bracket is used to suppress such a twist of the reflection plate.

The reinforcing bracket has substantially the same cross-sectional shape in the width direction of the reflector, and is disposed along the width direction on the outer surfaces at both ends in the longitudinal direction of the reflector. It is fixed by doing.

[0004] Whether used as a connected lighting device or as a single lighting device, a sheet metal for closing an open end of a reflecting plate is provided at both ends in the longitudinal direction of the entire device. Is mounted on the reflector, and the end plate is fixed to the reflector by spot welding.

[0005]

However, as described above, the reflector for fixing the reinforcing bracket to the reflector by spot welding is:
There is a problem that the reflection plate cannot be made of a color steel plate because the welding marks are exposed, and a post-treatment for painting the entire reflector is required to hide the welding marks. In addition, if fixing parts such as screws and rivets are used, the reinforcing bracket can be fixed to the reflector without welding, but in that case, the number of parts increases and production becomes troublesome.
Many fixed parts are visually recognized, and the appearance of the reflector is impaired.

Accordingly, a first problem to be solved by the present invention is to provide a lighting fixture which can fix a reinforcing bracket to a reflector without using fixing parts or welding, and which can be made of a color steel plate. It is in.

A second problem to be solved by the present invention is that the reflection end plate of the reflector or the reflection of the connection plate employed for connection between adjacent reflection plates when used as a connection type illumination device. An object of the present invention is to provide a lighting fixture that can solve the first problem by fixing to a plate without using fixing parts or welding.

[0008]

SUMMARY OF THE INVENTION The present invention is directed to a gutter-shaped reflecting plate having an upwardly-facing bent U-shaped cross-section on both sides in the width direction and having an open bottom surface. It is assumed that a lighting fixture is provided with a reflector having an outer surface on which reinforcing metal is fixed along the width direction.

[0009] In order to solve the first problem, the invention according to claim 1 is characterized in that a notch groove formed at a lower end of a folded piece of the upward edge portion is formed in a longitudinal direction of the reinforcing bracket. The engaging ends formed by bending at both ends are respectively hooked, and a bent piece bent from both ends in the longitudinal direction of the reflector along the outer surface of the end portion and an end in the longitudinal direction of the reflector are used. The intermediate part of the reinforcing metal is sandwiched, and the reinforcing metal is fixed to the outer surfaces of both ends in the longitudinal direction of the reflection plate.

According to the first aspect of the present invention, in order to fix a reinforcing bracket for reinforcing a gutter-shaped reflector to the reflector, first,
The engaging ends of the reinforcing metal fittings at both ends are hooked from below into the cutout grooves formed in the folded pieces of the upward edges of the inverted U-shaped cross section of the reflector. Thereby, the reinforcing metal is arranged so as to be attached to the longitudinal outer end of the reflector along the width direction. As a result of the hooking, the movement of the reinforcing metal in the longitudinal direction of the reflector and the upward movement of both ends of the reinforcing metal are stopped. Next, the bent piece integral with the reflector is bent along the outer surface of the longitudinal end of the reflector, and an intermediate portion of the reinforcing plate is sandwiched between these ends and the bent piece. Thereby, the upward movement of the intermediate portion of the reinforcing metal is stopped, and the entire reinforcing metal is brought into close contact with the outer surface of the longitudinal end of the reflector.

As described above, both ends of the reinforcing member are hooked into the notches provided on the upward edge of the reflecting plate, and the middle portion of the reinforcing member is bent by using a bent piece of the reflecting plate and the end of the reflecting plate. The reinforcing bracket can be fixed to the outer surface of the reflector without using fixing parts such as screws or welding.

In order to solve the second problem, a second aspect of the present invention is dependent on the first aspect, wherein an elastically deformable pressing piece is integrally provided on one side in the width direction of the reinforcing metal, and Between the piece and the end of the reflector in the longitudinal direction, there is a plug of a reflector end plate provided to close the longitudinal open end of the reflector or a connecting plate for interconnecting adjacent reflectors. An inlet for insertion is formed, and the insertion piece or the connection plate inserted between the holding piece and the longitudinal end of the reflection plate facing the holding piece is fixed. .

Since the second aspect of the present invention is dependent on the first aspect of the present invention, in addition to being able to solve the first problem, it is also possible to use the reinforcing metal fitting to make a connection with a reflector of another adjacent lighting fixture. The connecting plate or the connecting piece of the reflective end plate that connects
It can be fixed to the reflector provided with the reinforcing metal without using fixing parts or welding. That is, since the reinforcing fitting has a pressing piece that forms an entrance between the reinforcing fitting and the longitudinal end of the reflection plate, the connecting plate or the insertion piece inserted from the entrance is replaced with a pressing piece of the reinforcing fitting. And the reflector can be sandwiched and fixed between the overlapped reflector in the longitudinal direction without using a fixed part or welding.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

In FIG. 1, reference numeral 1 denotes a ceiling showing a cross-sectional structure of the connected illumination device, and reference numeral 1a denotes a fixture mounting hole opened in the ceiling 1. The fixture mounting hole 1a is long corresponding to the entire length of the connected lighting device configured by connecting a plurality of lighting fixtures 2 in the longitudinal direction. A large number of suspension bolts 3 are arranged behind the ceiling at predetermined intervals facing the instrument mounting hole 1a. A washer 4 is fitted to the lower ends of these bolts 3, and a nut 5 is screwed into the bolt 3. By tightening the nut 5, the lighting fixture 2 is embedded and mounted on the ceiling 1.

The connecting type lighting device comprises a plurality of lighting fixtures 2 arranged in a straight line, a central connecting plate 6 for connecting adjacent lighting fixtures 2 to each other, and a pair of side connecting parts which make a similar connection. The lighting device includes a plate 7 and reflection end plates 8 made of color steel plates provided at both ends in the longitudinal direction of the lighting device.

Each lighting fixture 2 includes a metal fixture main body 11.
And a plurality of metal fixing brackets 12 (only one is shown in FIG. 1)
And a reflector 13 made of metal and a straight tube fluorescent lamp 14 as a light source. The reflector 13 is formed of a bottom-open reflector 15 and reinforcing brackets 16 fixed to the outer surfaces of both ends of the reflector 15 in the longitudinal direction.

The appliance body 11 has an elongated box structure with an open lower surface, and houses therein lighting devices such as a discharge lamp stabilizer, a terminal block, and various other necessary electric components (not shown). I have. Further, socket fittings 17 are attached to both longitudinal ends of the instrument body 11, respectively.
Since the luminaire 2 according to the first embodiment is for two lamps, a socket having a pair of socket holder portions 17a respectively protruding outward in the width direction from the lower ends of both side walls 11a of the luminaire main body 11 in accordance therewith. Although the mounting bracket 17 is used, the present invention can be applied to a single-lamp type or a multi-lamp type lighting apparatus having two or more lamps. A lamp socket 18 to which the lamp 14 is detachably mounted is provided on the socket holder 17a so as to protrude downward.

At opposite ends of the side wall 11a of the instrument body 11 opposite to each other in the longitudinal direction, a connection hole 19 formed of a vertically long slit is formed.
In addition, hanging bolt introduction holes 20 are formed in the upper wall 11b of the instrument body 11 at both ends in the longitudinal direction and the like. The fixing fitting 12 has an engaging claw 12a
Is hooked into the connection hole 19 from the inside of the instrument body 11, and is connected to the instrument body 11 across the body 11 in the width direction. Ceiling contact portions 12b are bent at both longitudinal ends of the fixing bracket 12, respectively.

The fixture body 11 to which the fixture 12 is connected is embedded and mounted on the ceiling 1 in the following procedure. First, the fixture body 11 and the fixture 12 are inserted into the fixture mounting hole 1a until the ceiling contact portion 12b of the fixture 12 hits the lower surface of the hole edge on both sides in the width direction of the fixture mounting hole 1a. Hanging bolts 3 above the ceiling in each of the holes 20
Are introduced respectively. Next, the washer 4 is fitted to the lower end of each bolt 3 and the nut 5 is screwed up to tighten. Thus, the ceiling contact portion 12b can be strongly adhered to the lower surface of the edge of the fixture mounting hole 1a, and the fixture main body 11 can be suspended from the plurality of suspension bolts 3 and mounted on the ceiling 1.

The reflector 15 provided in the reflector 13 is formed by bending a single color steel plate, and has a substantially horizontal plate shape as shown in FIGS. The reflective ceiling wall 15a has a reflective side wall 15b that bends obliquely downward from both sides in the width direction and has a gutter shape with an open lower surface, and the inner surface is a reflective surface. Furthermore,
On both sides of the reflector 15 in the width direction, an upward edge 22 having an inverted U-shaped cross section is formed integrally with a lower edge of the reflection side wall 15 b via a horizontal edge 21. Therefore, the horizontal edge portion 21 and the upward edge portion 22 form a projecting opening edge having a substantially L-shaped cross section, and the opening edge is the tool mounting hole 1a.
Is covered from below. The upward edge portion 22 has a folded piece 22a. The folded piece 22a is separated above the horizontal edge 21 and has cutout grooves 23 shown in FIGS. 8D and 8E at both ends in the longitudinal direction.
Are formed respectively. The notch groove 23 is shallow and is open to the horizontal edge 21 side.

At both ends in the longitudinal direction of the reflective ceiling wall 15a,
As shown in FIGS. 8B and 8C, the socket passing portion 2
4 are formed by cutting out, respectively, and a bent piece 25 protruding into the through portion 24 is provided. Since the lighting fixture 2 is of a two-lamp type, the socket passing portion 24 is provided in a pair in accordance therewith, and for example, a pair of bent pieces 25 is provided for each socket passing portion 24. The bent piece 25 is bent so as to overlap the outer surface of the edge of the socket passing portion 24 and is disposed outside the socket passing portion 24, and at the same time, the socket passing portion 24 is formed into a rectangular shape having an appropriate size. It is made to become.

As shown in FIG. 9B and the like, a reinforcing metal member 1516 provided for suppressing the torsion of the trough-shaped reflecting plate 15 is a cross section of the reflecting plate 15 in the width direction. It is formed by bending into a shape substantially the same as the shape, the reflecting ceiling wall abutting portion 16a, the reflecting side wall abutting portion 16b bent from both ends in the longitudinal direction, and the horizontal portions bent from these abutting portions 16b, respectively. Edge contact part 16c
And the engagement end portions 16d bent from the attachment portions 16c. The engaging end portion 16d is bent so as to form a V-shaped cross section with the horizontal edge contact portion 16c, and the end portion 16d is elastically deformable in the bending direction.

The reinforcing metal fitting 16 has a first rib 31 for improving strength which is continuous over a portion other than the engaging end 16d.
Second ribs 32 shorter than this are formed respectively.
Then, as shown in FIG. 9 (A) and the like, one end in the width direction of the reflective ceiling abutting portion 16a has a similar uneven shape corresponding to the uneven shape of the longitudinal end of the reflector 15. . That is, reference numeral 33 denotes a pair of recesses corresponding to the socket passing portions 24, reference numeral 34 denotes auxiliary recesses formed between the recesses 33, and reference numeral 35 denotes convex plate portions located on both sides of the recesses 33 and 34. . The auxiliary recess 34 may be omitted and the portion may be formed as a blind plate. However, by providing the recess 34, the insertion resistance of the later-described insertion piece of the central connecting plate 6 or the reflecting end plate 8 is reduced. It is designed to facilitate assembly.

Each of the convex plate 33, the reflective side wall abutment 16b and the horizontal edge abutment 16c is provided with a slightly rising base 37 as shown in FIGS.
Are integrally extended. These holding pieces 38 are elastically deformable and have obliquely bent introduction pieces 38a at their distal ends.
Hemispherical stopper convex portion 3 located between
9.

The reinforcing metal fittings 16 having the above-described structure are fixed to the outer surfaces of both ends of the reflector 15 in the longitudinal direction along the width direction of the reflector 15. The fixing of these reinforcing members 16 is performed in the following procedure. First, while elastically deforming each engagement end portion 16d so as to approach the horizontal edge contact portion 16c side, the engagement end portion 16d is inserted into the inside of the upward edge portion 22 of the reflection plate 15 and folded back.
a into the notched groove 23.

As a result, the engaging end 16d is hooked in the notch groove 23 in a state of being slightly bent, and the elastic force for restoring the engaging end 16d is applied to the outer surface of the end of the reflecting plate 15 in the longitudinal direction. The entire reinforcing bracket 16 arranged along the width direction can be held in contact with the outer surface of the end portion.
In addition, since the engagement end 16d and the notch groove 23 have substantially the same length, the positioning by hooking along the longitudinal direction prevents the reinforcing bracket 16 from accidentally moving along the longitudinal direction of the reflection plate 15. it can.

Further, the recess 33 of the reinforcing metal fitting 16 held by the hooking just communicates with the socket passing portion 24 of the reflection plate 15, and at the same time, the convex plate portion provided on the reflection ceiling wall contact portion 16a. 35 overlaps on the plate portions on both sides of the socket passing portion 24 at the longitudinal end of the reflective ceiling wall 15a, and the convex plate portion 35 provided on the reflective side wall abutting portion 16b is formed in the longitudinal direction of the reflective side wall 15b. The convex portion 35 provided on the horizontal edge contact portion 16c overlaps the edge of the horizontal edge 21 in the longitudinal direction.
Thereby, the stopper projection 39 is pressed against the outer surface of the longitudinal end of the reflecting plate 15 by the elastic force of the retaining piece 38 of each convex plate 35, and the retaining piece 3 is held between the stopper convex portion 39 and the longitudinal end.
An inlet 40 gradually narrows toward the stopper 39 between the inlet end 38a and the inlet end 38a.

Next, each bent piece 25 protruding from the socket passing portion 24 is bent and caulked so as to overlap on the convex plate portion 35 adjacent to the socket passing portion 24. Thereby, the convex plate portion 35, in other words, the intermediate portion of the reinforcing bracket 16 is sandwiched between the longitudinal end of the reflective ceiling wall 15 a and the bent piece 25, and the reinforcing bracket 16 is adhered to the reflecting plate 15. Metal fittings to enhance
6 can be prevented from inadvertently moving upward from the reflection plate 15. FIGS. 2, 3, 5, and the like show a state in which the bending piece 25 fixes the reinforcing bracket 16.

That is, according to the above procedure, the reinforcing bracket 16
Can be fixed to the end outer surface of the reflection plate 15. Note that, instead of the above-described procedure, the above-described procedure may be performed after the bent piece 25 is bent and placed in a state of being raised at a right angle to the reflective ceiling wall 15a in advance.

The reflector 13 assembled in the above procedure is
After being inserted into the fixture mounting hole 1a so as to be disposed below the fixing bracket 12, the reflection ceiling wall 15a of the reflection plate 13 is formed.
Is screwed into a screw receiving portion (not shown) provided on the fixing bracket 12 so as to cover the instrument mounting hole 1a and the edge of the hole so as to be mounted on the ceiling 1. By this mounting, the lamp sockets 18 are arranged inside the reflector 13 by passing the socket through portions 24 of the reflector 15 downward, and the inside of the reflector 13 is Fluorescent lamp 1
4 is attached.

Next, the metal connecting plates 6 and 7 for connecting the adjacent lighting fixtures 2 to each other will be described. As shown in FIG. 10 and the like, the center connecting plate 6 is formed in a substantially strip shape, and has concave portions 45 cut out from both sides in the width direction at both ends in the longitudinal direction, and the vicinity thereof. It has a bead 46 positioned and extending in the width direction. The center connecting plate 6 fixes one half of the width direction to one of the adjacent lighting fixtures 2 and fixes the remaining half of the width direction to the other lighting fixture 2, thereby forming two adjacent lighting fixtures 2. The reflection ceiling walls 15a of the reflection plate 15 are connected to each other.

In this connection, the center connecting plate 6 is inserted from the entrance 40 between the end of the reflective ceiling wall 15a and the pressing piece 38 of the convex plate 35 overlapping with the elastic piece of the pressing piece 38 while elastically deforming the pressing piece 38. Be worn. At this time, since the concave portion 45 is fitted to the stopper convex portion 39, an excessive insertion force is not required. In addition, since each bead 46 is engaged with the opposite side edge of the auxiliary recess 34, the bead 46 is caught by the bead 46 so that the central connecting plate 6
Can prevent an inadvertent displacement of the reflector 13 in the width direction, that is, increase the connection strength between the adjacent reflectors 15.

As shown in FIG. 11, the pair of side connecting plates 7 includes a ceiling wall overlapping portion 7a, a side wall overlapping portion 7b bent downward from one end thereof, and an L-shaped bent portion from the lower end thereof. And an overhanging opening edge overlapping portion 7c. The ceiling overlap portion 7a has recesses 4 from both sides in the width direction.
7 are provided, and each of the overlapping portions 7a to 7
An engagement hole 48 composed of a long hole is formed at each of the two end portions in the width direction, and each of the overlap portions 7c protrudes from the center in the width direction toward the side wall overlap portion 7b. The stopper projection 49 is bent.

These side connecting plates 7 are fixed by fixing one half in the width direction to one of the adjacent lighting fixtures 2 and fixing the remaining half in the width direction to the other lighting fixture 2, thereby forming two adjacent lighting fixtures 2. The reflectors 15 of the lighting fixture 2 are connected to each other.

In this connection, the side connection plate 7 is provided between the entrance 40 and the end of the reflection ceiling wall 15a on the reflection side wall 15b side and the pressing piece 38 of the convex plate portion 35 overlapping the reflection side wall 15b. The presser piece 38 is inserted between the longitudinal end of the horizontal edge 21 and the presser piece 38 of the convex plate 35 overlapping with the elastic edge of the presser piece 38. At this time, the concave portion 47 is fitted into the stopper convex portion 39. The engagement holes 48 are respectively fitted into the stopper projections 39 of the pressing piece 38. This state is shown representatively in FIG. Therefore, these hooks cause the adjacent reflectors 1
(5) The connection strength in the mutual longitudinal direction can be increased. Moreover, at this time, the stopper projection 49 is fitted into the notch 50 shown in FIG.
Is positioned in the insertion direction.

As described above, in the lighting fixture 2 in which the reflecting plates 15 are connected to each other and are adjacent to each other, the fixture main body 1
The longitudinal ends are also connected to each other via a suitable connecting structure (not shown).

The reflector 13 is located at the end face of the lighting fixture 2 at the both ends in the longitudinal direction of the lighting device on the non-connection side.
The reflective end plate 8 for closing the open end face is formed as shown in FIGS. 4 and 12 by bending a color steel plate integrally. That is, one or more insertion pieces 52 and 53 are bent from the upper edge and the inclined side edge of the end plate main portion 51 having the same shape as the open end face, and correspond to the overhanging opening edge. End plate overhanging opening edge 5 formed by bending the lower edge of reflector main portion 51 outward
The insertion pieces 55 are also bent at both ends of 4.
Each of the insertion pieces 52, 53, 55 has an engagement hole 56 formed of a long hole. Further, the reflector main portion 51 has a reflector support 57 opposed to the base of the two inserts 52 positioned in the middle of the four inserts 52 bent from the upper edge thereof. It is projected so as to be pushed out from the outer surface toward the inner surface. Inner surface of the reflecting end plate 8 having the above configuration (the surface opposite to the direction in which the opening edge 54 extends).
Is a reflective surface.

In this reflecting end plate 8, each insertion piece 52 overlaps the end outer surface of the reflection ceiling wall 15a, each insertion piece 53 overlaps the end outer surface of the reflection side wall 15b, and the end of the horizontal edge 21 is formed. These inserts 5 are inserted so that the inserts 55 overlap with the outer surfaces of the inserts.
2, 53 and 55 are inserted from the entrance 40 between the longitudinal end of the reflector 15 and the pressing piece 38 of the convex plate portion 35 overlapping with the elastic piece of the pressing piece 38, respectively. Thereby, the open end face is closed and fixed to the instrument main body 2. At this time, the engagement holes 56 are respectively provided in the holding pieces 3.
8 is fitted to the stopper projection 39. This state is shown representatively in FIG. Therefore, the connection strength of the reflection end plate 8 to the instrument main body 2 can be increased by these hooks. In addition, along with such mounting, the longitudinal edge 15a1 of the reflective ceiling wall 15a is inserted between the holding piece 38 and the reflector support 57 as shown in FIG. And is supported from below by a reflector support 57. Therefore, it is possible to prevent the reflective ceiling wall 15b from sagging such that the central portion in the width direction is the lowest at the longitudinal end.

In the reflector 13 included in each of the lighting fixtures 2 constituting the connected lighting device having the above-described configuration, in order to fix the reinforcing bracket 16 to the outer surface of the reflecting plate 15, the reinforcing bracket 16 is provided as described above. An engaging end 16d at both ends is provided.
Upside edges 22 each having a reverse U-shaped cross section provided in the reflection plate 15
After being hooked from below into the notch groove 23 formed in the folded piece 22a, the bent piece 25 integrated with the reflecting plate 15 is bent along the outer surface of the longitudinal end of the reflecting plate 15, and The entire reinforcing metal fitting 16 may be brought into close contact with the outer surface of the longitudinal end of the reflector 15 by sandwiching the intermediate portion of the reinforcing plate 16 with the bent piece 25 so as to swage. Thus, the reinforcing bracket 16 can be fixed to the outer surface of the reflection plate 15 without using fixing parts such as screws or welding.
Therefore, the reflecting plate 15 to which the reinforcing bracket 16 is fixed can be made of a color steel plate.

Furthermore, since the reinforcing bracket 16 has the pressing piece 38 forming the entrance 40 between the reinforcing bracket 16 and the longitudinal end of the reflecting plate 15, the connection of the reflectors 13 of the adjacent lighting fixtures 2 can be established. The insertion plates 52, 53, 55 of the reflection end plate 8 attached to the connection plates 6, 7 to be performed, or the lighting fixture 2 located at the end of the connection type lighting device are inserted from the entrance 40, whereby these are inserted. Since the fixing piece 38 of the reinforcing bracket 16 can be sandwiched and fixed between the pressing piece 38 of the reinforcing member 16 and the longitudinal end of the reflecting plate 15 overlapping with the fixing piece 38, there is no need to use fixing parts such as screws or welding for this fixing. . Therefore, the reflection plate 1
5 and the reflection end plate 8 can be made of a color steel plate.

Since a color steel plate can be adopted in this way, there is no need for a painting operation after assembling the reflector 13 or after assembling the reflector 8 with the reflector 13. It is possible to produce a high-quality appliance which is inexpensive and has no variation in reflection characteristics, and the appearance of the reflector 13 having an open bottom surface as in the case where a large number of fixing parts such as screws are exposed, and furthermore, this reflector The overall appearance of the device provided with 13 is not impaired.

Although the first embodiment is an example in which the present invention is applied to a lighting device used in a connected lighting device, the present invention can also be applied to a non-connected lighting device shown in FIG. . In the second embodiment, the reflector 13
Reinforcing brackets 16 are fixed to the outer surfaces of both ends in the longitudinal direction of the reflector 15 whose lower surface is open, respectively, and the reflecting end plates 8 are respectively fixed by closing the open end surfaces at both ends in the longitudinal direction of the reflector 15. ing. The object of the present invention can be solved in the second embodiment as well as in the first embodiment. Since the second embodiment shown in FIG. 13 has basically the same configuration as the first embodiment, the same components are denoted by the same reference numerals as in the first embodiment. I have.

Also, in each of the above embodiments, since the bent piece 25 is provided by using the plate portion of the portion where the socket passing portion 24 is punched out, the material of the reflecting plate 15 is good and the trace of the bent bent piece 25 is good. Are excellent in that the appearance of the reflection plate 15 is not impaired. However, the present invention is not limited to this, and in the present invention, a bent piece 25 may be provided extending from the end face of the reflector 15 in the longitudinal direction, or a bent mark may be formed as a groove or a hole at the end of the reflector 15. A bent piece 25 may be provided so as to remain.

The present invention can be applied not only to the ceiling-mounted lighting fixtures according to the above embodiments but also to a ceiling-mounted lighting fixture.

[0046]

The present invention is embodied in the form described above and has the following effects.

According to the first aspect of the present invention, the reinforcing metal fitting can be used for the reflection plate without using a fixing part such as a screw which impairs the appearance of the reflection member or using a welding stop which requires painting after assembling the reflection member. Since it can be fixed to the outer surface, the reflection plate to which the reinforcing metal is fixed can be made of a color steel plate.

According to the second aspect of the present invention, the connecting plate or the reflection plate is inserted through the entrance formed between the pressing piece of the reinforcing metal and the longitudinal end of the reflection plate. The insert piece of the end plate can be sandwiched and fixed between the presser piece and the longitudinal end of the reflector without using a fixed part or requiring welding, thereby allowing the reflector to be a colored steel plate. It can be made.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a configuration of a connection type lighting device according to a first embodiment of the present invention.

FIG. 2 is an exemplary exploded perspective view illustrating a configuration around a connection portion of the connection type lighting device according to the first embodiment;

FIG. 3 is a perspective view showing a configuration of one end in a longitudinal direction of a reflector included in the connection type lighting device according to the first embodiment.

FIG. 4 is an exemplary exploded perspective view showing a configuration of one end in a longitudinal direction of a reflector included in the connection-type lighting device according to the first embodiment;

FIG. 5 is a sectional view taken along the line ZZ in FIG. 2;

FIG. 6 shows a state in which the connecting plate is fixed to an end of the reflecting plate;
Sectional drawing shown along a middle YY line.

FIG. 7 is a cross-sectional view showing a state where the reflection end plate is fixed to an end of the reflection plate along the line YY in FIG. 2;

FIG. 8A is a side view showing a configuration of an end portion of a reflection plate provided in the connection type lighting device according to the first embodiment. FIG. 9B is a plan view showing the end of the reflector in FIG. (C) is FIG.
The figure which shows the end part of the reflector of (A) seen from the end surface direction. (D)
FIG. 9 is a sectional view taken along line XX in FIG. FIG. 9E is a cross-sectional view taken along line WW in FIG.

FIG. 9A is a plan view showing the configuration of a reinforcing bracket provided in the connection type lighting device according to the first embodiment. (B) is FIG.
The front view which shows the reinforcement metal of (A). (C) is a side view which shows the reinforcement fitting of FIG. 9 (A).

FIG. 10 is an exemplary perspective view showing the configuration of a central connecting plate included in the connecting type lighting device according to the first embodiment;

FIG. 11 is an exemplary perspective view showing a configuration of a side center connection plate provided in the connection type lighting device according to the first embodiment;

FIG. 12A is a plan view illustrating a configuration of a part of a reflection end plate included in the connection type lighting device according to the first embodiment.
FIG. 13B is a front view showing a configuration of a part of the reflection end plate of FIG. (C) is a side view which shows the structure of the whole reflection end plate with which the connection type illuminating device which concerns on 1st Embodiment is provided.

FIG. 13 is a perspective view showing a configuration of a lighting fixture according to a second embodiment of the present invention.

[Explanation of symbols]

 2: lighting fixture, 6: central connecting plate, 7: side connecting plate, 8: reflective end plate, 13: reflector, 15: reflective plate, 16: reinforcing metal fitting, 16d: engaging end portion 22, ... upward edge Reference numeral 22a: folded piece, 23: notched groove, 25: bent piece, 38: holding piece, 40: entrance, 52, 53, 55: insertion piece.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Iwao Toba 6-78 Minamicho, Mishima-shi, Shizuoka Prefecture Inside the Tec Mishima Plant (72) Inventor Hideyuki Kanazawa 6-78 Minamicho, Mishima-shi, Shizuoka Tec Corporation In Mishima Plant (72) Inventor Masanao Hieda 6-78 Minamicho, Mishima City, Shizuoka Prefecture In Tec Mishima Plant

Claims (2)

[Claims] 1. A gutter-like reflector having an upwardly-facing edge bent in an inverted U-shape on both sides in the width direction and having an open lower surface, is provided on the outer surfaces of both ends in the longitudinal direction along the width direction. In a lighting fixture having a reflector to which a reinforcing metal is fixed, a notch groove formed at a lower end of a folded piece of the upward edge portion is formed by being bent at both longitudinal ends of the reinforcing metal. While hooking the engaged ends,
A bent piece bent along both ends of the reflector in the longitudinal direction and the longitudinal end of the reflector sandwiches an intermediate portion of the reinforcement, and reflects the reinforcement by the reflection. A lighting fixture fixed to outer surfaces of both ends in a longitudinal direction of a plate. 2. An elastically deformable pressing piece is integrally provided on one side in the width direction of the reinforcing metal, and a longitudinal direction of the reflecting plate is provided between the pressing piece and a longitudinal end of the reflecting plate. Forming an entrance into which a plug of a reflective end plate provided to close the open end or a connecting plate for connecting adjacent reflective plates is inserted,
The lighting fixture according to claim 1, wherein the insertion piece or the connecting plate inserted between the holding piece and the longitudinal end of the reflection plate facing the holding piece is fixed.