JPH0654602B2 - lighting equipment - Google Patents

Description

Description: [Field of Industrial Application] The present invention relates to a so-called connection mounting type lighting fixture in which, for example, a plurality of lighting fixture units are connected and attached in a straight line or the like.

[Conventional technology]

A typical prior art is shown in FIG. This luminaire is a so-called embedded luminaire which is installed by being embedded in an embedding hole formed in a ceiling or the like, for example, and includes a cuboid container-shaped luminaire main body 1 whose lower side is opened. A lamp socket 3 for supplying electric power to a straight tube type fluorescent lamp 2 is provided in the vicinity of both ends of the fixture body 1 with a socket mounting portion 4.
It is fixedly installed at. Then, the reflection plate 7 is fixed by the bolts 6 screwed into the screw holes 5 formed in the socket mounting portion 4. With the reflector 7 and the lamp 2 attached, the lamp 2 is placed in the lower opening of the instrument body 1.
Further, the panel 8 for scattering the light from the reflection plate 7 and performing an appropriate light distribution is a frame body 9 for holding the panel 8.
The kick spring 10 fixed to is fixed to the locking claw 11 provided on the side plate of the instrument body 1 so as to be locked by its spring force.

Such a lighting fixture may be used, for example, by connecting a plurality of lighting fixtures in the longitudinal direction. That is, the end plates 12 and 13 of the fixture main body 1 and the end plates (12 and 13) of the fixture main body (1) of other similar lighting fixtures are opposed to each other, and a plurality of lighting fixtures are connected to each other as a whole. A linear lighting fixture is constructed.

[Problems to be Solved by the Invention]

In the prior art as described above, since the brightness is low near both ends of the lamp 2, brightness unevenness occurs on the surface of the panel 8, which is not desirable in appearance, and the illuminance of the irradiation target surface (such as a desk) is not good. There was a problem that it could not be balanced.

In order to solve such a problem, as shown in FIG. 6, a groove-shaped instrument main body 21 having an inverted U-shaped cross section with both ends open.
A plurality of lamp sockets 23 and 24 for supplying electric power to one lamp 22 are provided in each fixture body 21 one by one, and the lamp 22 and other lamps are provided in the vicinity of the lamp sockets 23 and 24. It is conceivable that the respective end portions such as 22a are arranged side by side. That is, the lamps 22 and 22a
By overlapping the ends of the two lamps 22 and 22a arranged so that the brightness in the vicinity of the ends of the lamp is shifted in the longitudinal direction of the luminaire, the brightness is close to the brightness of the central part of the lamp 22. It is intended to be supplemented.

However, in such a configuration, in order to securely attach the lamp 22 having a fixed tube length to the lamp sockets 23 and 24, the space between the lamp sockets 23 and 24, which are fixed to the other instrument main body 21, respectively, is required. The distance needs to be set accurately. However, due to variations in manufacturing of the instrument body 21 and problems such as construction accuracy, the socket
It is expected that it is extremely difficult to accurately set the positional relationship between 23 and 24 to a desired state, and it is impossible to mount the lamp 22 or there is a problem such as a contact failure of the pin of the lamp 22. It is thought to occur, and its realization is difficult.

An object of the present invention is to solve the above technical problems and to provide a lighting fixture capable of realizing a well-balanced lighting state.

[Means for Solving the Problems]

The luminaire of the present invention comprises a plurality of groove-shaped planar bodies each of which is open at both ends, and a plurality of lamp units attached to the lamp body and having lamp sockets fixed at both ends thereof. A groove-shaped communication space is formed by connecting the main bodies, and the plurality of lamp units are arranged in the storage space with respect to one lamp unit while being displaced in the longitudinal direction of the one lamp unit. It is characterized in that it is arranged so that at least one other lamp unit that overlaps the vicinity of the end is present near the end of the one lamp unit.

[Action]

According to the configuration of the present invention, the groove-shaped storage space is formed by connecting the plurality of groove-shaped fixture main bodies, and the plurality of lamp units are attached to the fixture main body and arranged in the storage space. This lamp unit has lamp sockets attached to both ends thereof, and therefore the distance between the lamp sockets can be reliably set to a constant value, so that there will be no problem in mounting the lamp,
Also, the electrical connection with the lamp-playing socket can be achieved well.

When a certain lamp unit is focused on, the plurality of lamp units arranged in the storage space are arranged in the vicinity of the end of the lamp unit and displaced in the longitudinal direction with respect to the lamp unit. At least one of the other lamp units is arranged so that the vicinity of the end thereof is overlapped.
As a result, in the vicinity of the end portion of the lamp unit, that is, in the vicinity of the end portion of the lamp, the brightness is supplemented by the light from the vicinity of the end portions of the other lamps that are overlapped with each other, and therefore, each portion along the longitudinal direction of the storage space. Therefore, uniform brightness can be obtained.

〔Example〕

FIG. 1 is an exploded perspective view showing a basic structure of a lighting fixture of an embodiment of the present invention, and FIG. 2 is a perspective view showing an assembled state. This luminaire is an embedded luminaire that is arranged so as to be embedded in an embedding hole formed in a ceiling or the like, and both ends connected to and attached to the embedding hole formed in a straight line are connected to each other. It is provided with a plurality of open channel-shaped instrument bodies 31 (only one is shown in FIGS. 1 and 2). A mounting portion 36 for mounting the lamp unit 33 is provided on the top plate 32 of the fixture main body 31, and the insertion hole 35 formed in the lamp unit 33 is inserted into the screw hole 36 a formed in the mounting portion 36. The fitting unit 37 attaches the lamp unit 33 to the fixture body 31.

The lamp unit 33 has lamp sockets 34 fixed to both ends, and in this embodiment, the length thereof is longer than the length of the instrument body 31 in the longitudinal direction.
In the state of being attached to, the both ends thereof are in a state of protruding from both ends of the instrument body 31, respectively, as shown in FIG.

A ballast 38 that leads out power to be supplied to the lamp socket 34 is attached to the top plate 32 of the fixture body 31, and the power from the ballast 38 is supplied to a connector 39 and a connector 40 on the side of the lamp unit 33. To the lamp socket 34 via. In this way, since the electrical connection between the lamp unit 33 and the ballast 38 is made to be performed via the connectors 39 and 40, the construction is
The attachment of the fixture main body 31 and the attachment of the lamp unit 33 can be performed separately.

A kick spring 44, which is attached to a frame body 43 for supporting the panel 42 by a panel 42, is attached to a locking claw 46 provided on a side plate 45 of the instrument body 31 by an elastic force of the spring force in an opening portion of the instrument body 31 on the lower side thereof. It is attached by locking. The panel 42 scatters light from the lamp 51 attached to the lamp unit 33 to obtain a desired light distribution state.

FIG. 3 is a perspective view showing a state in which a plurality of instrument main bodies 31 having the configuration shown in FIG. 2 are arranged in the longitudinal direction. The panel 42 is not shown in FIG.
As a result of connecting the plurality of groove-shaped fixture main bodies 31, a groove-shaped communication space 50 is formed, and a plurality of lamp units 33 are arranged in the storage space 50. Since both ends of the lamp unit 33 project from both ends of the fixture body 31 as shown in FIG. 2, the lamp unit 33 attached to the fixture body 31a side in FIG.
The end of a enters into the storage space of the adjacent fixture body 31b, and conversely, the end of the lamp unit 33b attached to the fixture body 31b side enters into the storage space of the adjacent fixture body 31a. However, the mounting positions of the respective lamp units 33a, 33b in the fixture bodies 31a, 31b are displaced in a direction intersecting the longitudinal direction of the storage space 50.

In such a configuration, the lamp 51 of the lamp unit 33a is
The lamp 51b of the lamp unit 33b is provided near the end of a.
Since the end portions of the lamps 51a and 51b are arranged so as to overlap each other, the portions near the end portions of the lamps 51a and 51b having low luminance complement each other, and as a result, the lamp unit 33.
The brightness observed through the panel 42 near the ends of a and 33b is substantially the same as the brightness near the center of each of the lamps 51a and 51b. In this way, the storage space 50
It is possible to make the luminance uniform in each part along the longitudinal direction, and to make the illuminance on the irradiation target surface such as on the table uniform.

Further, since the pair of lamp sockets 34, 34 to which one lamp 51 is to be attached are fixed to both ends of the lamp unit 33 having a certain size, the interval can be accurately set to a desired value. And the electrical connection between the lamp 51 and the lamp socket 34 is reliably achieved.

Furthermore, as a result of the electrical connection between the ballast 38 and the lamp unit 33 being made via the connectors 39, 40, the lamp unit 33 is attached to the fixture body 31 to the ceiling of the fixture body 31. Since it can be performed separately from the construction described in (1), the workability of mounting the lighting fixture can be significantly improved.

Moreover, a lamp unit 33 made of an elongated arm member having lamp sockets 34 at both ends for adhering the lamp 51 is provided separately from the fixture body 31, and the fixture body 31 is made shorter than the lamp length. Since the lamp unit 33 is displaced, that is, the lamp unit 33 is attached to the lamp body 31 in a state where the lamp unit 33 protrudes from the end of the lamp body 31, the lamp body unit 31 does not have an end face shape such as a step shape, The end portions of the lamps can be overlapped with each other, and as a result, the planar shape of the appliance body 31 can remain square.

Moreover, since the planar shape of the fixture main body 31 remains square and the shape of the lamp unit 33 is also elongated, the fixture main body 31 and the fixture can be easily manufactured, the fixture cost can be kept low, and the packaging is easy. In addition, the packaging size can be reduced, and further, the termination process when a plurality of instrument bodies 31 are installed in a connected state is simple.

FIG. 4 is an exploded perspective view showing the basic structure of another embodiment of the present invention. In FIG. 4, parts corresponding to the respective parts shown in FIG. 1 are designated by the same reference numerals. In this embodiment, a reflector 55 is provided behind the lamp unit 33 to improve the efficiency of using the light from the lamp 51. The reflection plate 55 is fixed to the mounting portion 56 provided on the top plate 32 of the fixture body 31 with bolts 57, and the lamp unit 33 is mounted to the mounting portion 58 provided on the surface of the reflection plate 55 with bolts 59. The connection between the connectors 39 and 40 is made through a through hole 60 formed in the reflection plate 55. A louver 61 is attached to the lower opening of the instrument body 31 in place of the panel 42.

Even with such a configuration, the same effect as that described in connection with the first embodiment can be obtained.

In the above-mentioned embodiment, both ends of the lamp unit are arranged to project from both ends of the fixture body to which it is attached, but only one end of the lamp unit may project from one end of the fixture body. Also in this case, the vicinity of the end of the lamp unit may be overlapped with the vicinity of the end of the lamp unit that is disposed in the longitudinal direction of the lamp unit. Still further, the length of the lamp unit may be shorter than the length of the fixture body in the longitudinal direction, and in this case also, a plurality of lamp units are provided with respect to one lamp unit.
If the at least one lamp unit is disposed so as to be displaced in the longitudinal direction of the one lamp unit so that at least one other lamp unit near the end portion of the one lamp unit overlaps with the other, the whole As a result, the brightness of the lighting fixture that is in a straight line can be made substantially uniform in the longitudinal direction.

〔The invention's effect〕

According to the luminaire of the present invention, in the vicinity of the end of the lamp,
The brightness is supplemented by the light from the vicinity of the ends of the other lamps that are arranged to overlap each other, so that uniform brightness can be obtained at each part along the longitudinal direction of the storage space formed by connecting a plurality of fixture bodies. Become. As a result, for example, the illuminance on the irradiation target surface such as on the table can be balanced, and a good illumination state can be obtained.

In addition, since the distance between the lamp sockets attached to both ends of the lamp unit can be surely made constant, there will be no problem in mounting the lamp, and the electrical connection between the lamp and the lamp socket will be well achieved. It

Moreover, a lamp unit composed of an elongated arm material having lamp sockets at both ends for mounting the discharge lamp separately from the lamp body is provided, and the lamp body is made shorter than the lamp length, and the lamp unit is displaced with respect to the lamp body. In other words, since the lamp unit is attached to the fixture body with the lamp unit protruding from the end of the fixture body, it is possible to overlap the ends of adjacent lamps without making the end face shape of the fixture body stepped. As a result, the planar shape of the instrument body can remain square.

Further, since the planar shape of the fixture body remains square and the shape of the lamp unit is also elongated, it is easy to manufacture the fixture body and the lamp, the fixture cost can be kept low, and the packaging is easy. The packaging size can be made smaller, and the termination process when installing a plurality of instrument bodies in a connected state is simple.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a basic structure of a lighting device according to an embodiment of the present invention, FIG. 2 is a perspective view showing an assembled state, and FIG. 3 is a structure showing the structure shown in FIG. FIG. 4 is a perspective view showing a structure in the vicinity of a connecting portion when a plurality of main bodies 31 are connected in the longitudinal direction, FIG. 4 is an exploded perspective view showing a basic structure of another embodiment of the present invention, and FIG. And FIG. 6 is a perspective view showing a structural example for solving the problem. 31 ... Fixture body, 33 ... Lamp unit, 34 ... Lamp socket, 50 ... Storage space, 51 ... Lamp

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takeshi Okamura 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. (56) References JP 58-38401 (JP, A) JP 53-48032 ( JP, B1) JP-B 52-39800 (JP, Y2) JP-B 63-26885 (JP, Y2) JP-A-53-1215 (JP-A-54-114473) Micro film (JP, U) which photographed contents of drawing

Claims (1)

[Claims] 1. A plurality of fixture bodies each having a groove shape with both ends open and having a rectangular planar shape shorter than the lamp length, and an elongated arm member having lamp sockets fixed to both ends, are attached to the fixture body. A lamp unit is provided, and a plurality of fixture bodies are connected to each other to form a groove-shaped communicating space, and the plurality of lamp units are provided in the accommodating space. A luminaire, which is arranged so as to be displaced in the longitudinal direction of the unit so that at least one other lamp unit that overlaps the vicinity of the end of the one lamp unit exists near the end of the lamp unit.