JPH05174605A - Luminaire - Google Patents

Abstract

PURPOSE:To secure a sealing performance between inside and outside of an apparatus body in a simple structure. CONSTITUTION:Plural number of hole parts 6 used selectively to install an apparatus and to lead-in an electric power supply wire are arranged in an apparatus body 1. A sheet like metal foil 12 to cover/seal the whole hole parts 6 is stuck on the outer surface of the apparatus body 1. As for the use hole parts 6, the metal foil 12 is punched and opened, and as for the nonuse hole parts 6 except them, a sealing condition is kept by means of the metal foil 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture installed in, for example, a clean room.

[0002]

2. Description of the Related Art Conventionally, a built-in type lighting fixture installed on the ceiling surface of a clean room is disclosed in, for example, Shokai Sho 63-12506.
As described in the publication, a seal member is attached to a flange portion provided on an opening peripheral portion of a box-shaped device body having an open bottom surface, and the device body is inserted into an embedding opening formed on the ceiling surface. Then, when tightening with a nut to a hanging bolt protruding from the ceiling structure above the ceiling surface, the flange portion adheres to the ceiling surface via the seal member, and the ceiling surface and the appliance body are sealed. It has become.

Further, the main body of the appliance itself has holes for mounting the appliance, for drawing in the power supply line, for mounting the lighting unit, and the like.
It is provided at multiple places and used selectively to correspond to the power line lead-in position, the type of lighting unit, etc., that is, there are multiple unused holes, inside the fixture body and above the ceiling plate. Communicate with each other through the hole.

Therefore, the opening of the instrument body is closed by a light-transmitting panel to shield the inside of the instrument body from the clean room below the ceiling plate. This translucent panel is attached to the panel frame in a close contact state via a seal member, and the panel frame is provided so as to be able to move up and down on the instrument body by a supporting means using a V spring or the like, and the seal member attached to the panel frame is attached to the instrument body. The structure is such that the panel frame and the instrument body are tightly sealed by closely contacting the flange portion.

[0005]

However, in the structure in which the opening of the main body of the fixture is closed by the transparent panel like the conventional lighting fixture, the transparent panel, the panel frame, the supporting means, the sealing member, etc. are required. However, the structure becomes complicated, and when performing maintenance such as lamp replacement and cleaning, it takes time and effort to open and close the light-transmitting panel (elevate integrally with the panel frame).

The present invention has been made in view of the above points, and has a simple structure that can secure the airtightness between the inside and the outside of the main body of the apparatus, and can easily perform maintenance such as lamp replacement and cleaning. It is intended to provide.

[0007]

SUMMARY OF THE INVENTION According to the present invention, a box-shaped instrument main body having an open lower surface is provided with a plurality of holes which are used at least for attaching the instrument and for drawing in a power supply line and which are selectively used. In addition, a flange portion, which is hermetically joined via a seal member, is provided on the mounting surface for mounting the instrument body on the peripheral edge of the opening, and the plurality of hole portions are covered on either one of the outer surface and the inner surface of the instrument body. It is a sheet-shaped metal foil that is adhered and sealed.

[0008]

In the present invention, the metal foil is punched out to open the holes used for attaching the instrument body and for drawing in the power supply line, and the other unused holes are kept sealed with the metal foil.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of an embodiment of the present invention will be described below with reference to the drawings.

In FIG. 5, reference numeral 1 denotes an instrument main body, which is a rectangular base plate portion 2, a pair of side plate portions 3 which are bent downwardly from both sides of the base plate portion 2 so as to be expanded, and a base plate portion 2. And a pair of end plate portions 4 that are fixed to both end faces of the pair of side plate portions 3 and close the end faces, and are formed in a box shape. The lower ends of the side plate portions 3 and the end plate portions 4 are generally L-shaped outwardly. The flange portion 5 is formed into a bent shape.

A plurality of holes 6 are formed in the instrument body 1. First, the hole portions 6a are for mounting equipment and are arranged in pairs near the respective end portions of the substrate portion 2 on the center line A of the substrate portion 2 so as to be separated from each other by a pair of holes in the longitudinal direction of the substrate portion 2. It has a knockout structure.

The hole 6b is used for drawing in the power supply line and is provided on the center line A in the vicinity of each end of the substrate portion 2 and at the center of the substrate portion 2 on the center line A and the center line A. It is arranged at a position deviated from and is formed in a circular knockout structure.

A plurality of holes 6c are for mounting the lighting unit, are arranged along the center line A in the central region of the substrate 2, and are formed in a hole structure having a through opening.

The hole 6d is for mounting a terminal block, is arranged at a position deviated from the center line A in the central region of the substrate 2, and has a hole structure having a through opening.

The hole 6e is used for the feed wiring when connecting and connecting the instrument body 1 in the longitudinal direction, and is provided in the center of the end plate portion 4,
It is formed in a circular knockout structure.

The holes 6f are used for connecting devices when the device body 1 is connected and connected in the longitudinal direction, and are provided on both sides of the holes 6e of the end plate 4 and are formed in a hole structure having a through opening. ..

Then, the lighting unit 7 and the terminal block 8 are arranged inside the fixture body 1, and the lighting unit 7 is screwed into the hole 6c corresponding to the type of the lighting unit 7,
The terminal block 8 is screwed into the hole 6d.

Next, in order to make the instrument body 1 a closed type,
As shown in FIG. 1, a seal member 11 is provided on the entire circumference of the flange portion 5.
This seal member 11 is made of, for example, soft rubber, and is formed to have a size and shape that protrudes above the flange portion 5 in a state before being brought into close contact with a mounting surface described later.

Further, a metal foil, for example, an aluminum foil 12 is adhered to the outer surface of the substrate portion 2 and the outer surface of both end plate portions 4,
The aluminum foil 12 covers and seals all the hole portions 6 provided in the substrate portion 2 and both end plate portions 4. This aluminum foil is formed in a sheet shape with a thickness of about 0.05 mm, a length across both end plate portions 4 and a lateral width capable of covering all the hole portions 6, and the outer surface of the substrate portion 2 and both end plate portions 4 is formed. Either the adhesive is applied to the aluminum foil or the adhesive is applied to the aluminum foil. The aluminum foil 12 is attached after the lighting unit 7 and the terminal block 8 are screwed to the instrument body 1.

Next, the construction for mounting the lighting equipment on the mounting surface of a clean room or the like will be described.

As shown in FIG. 3, a rectangular opening 22 into which the instrument main body 1 can be embedded is formed in a ceiling plate 21 as a mounting surface of a clean room or the like, and the ceiling plate 21 faces the opening 22. A pair of hanging bolts from the ceiling structure above the
23 is provided so as to project, and as shown in FIG. 4, a power line 24 is led from the ceiling structure.

Then, as shown in FIG. 2, a hole for drawing in the power source wire corresponding to the position of the equipment mounting hole 6a corresponding to the position of the pair of hanging bolts 23 and the position where the power source wire 24 is introduced.
At the position of 6b, the aluminum foil 12 is punched out at the tip of the driver D and the knockout is punched out, and the holes 6a, 6b
Open each.

Then, the instrument body 1 is inserted into the opening 22 from below, and the tip of the hanging bolt 23 is inserted from the hole 6a.
The washer 25 and the spring washer 26 on the tip of the nut, and the nut 27 on the thread 23a at the tip of the hanging bolt 23.
As shown in FIG. 3, the sealing member 11 is brought into pressure contact with and closely adheres to the ceiling plate 21, thereby fixing the instrument body 1 to the ceiling portion and fixing the instrument body 1 and the ceiling plate 21 together. The space is sealed.

A sealing agent 28 is applied to the portion of the hole 6a through which the suspension bolt 23 is passed to seal it.

Further, when the instrument body 1 is inserted into the opening 22, the power line 24 is pulled into the instrument body 1 from the hole 6b to be connected to the terminal block 8, and the hole 6b through which the power line 24 is passed.
The power source ground 28 is attached to and the hole 6b is sealed.

Therefore, the unused holes 6 of the instrument body 1 are sealed with the aluminum foil 12, and the space between the instrument body 1 and the ceiling plate 21 is sealed with the seal member 11, so that the inside and outside of the instrument body 1 are sealed. That is, the tightness between the lower space and the upper space of the ceiling plate 21 is ensured.

A mounting base 31 is preliminarily welded and fixed to both ends of the inside of the instrument body 1, and a pair of lamp sockets 33 for connecting a pair of straight tube type lamps 32 to the mounting base 31.
Is attached, and a reflector 34 having a substantially V-shaped cross section is attached to cover the lighting unit 7 and the like and is arranged between the pair of lamps 32.

Further, since the lower surface of the instrument body 1 is opened, maintenance such as replacement and cleaning of the lamp 32 can be easily performed.

A metal foil such as an aluminum foil is resistant to thermal effects, is not easily deteriorated by heat generated by the lighting unit 7, and has durability.

Further, in addition to the device body for exclusive use of the sealed type, a metal foil can be attached to the device body for general type to be used as the sealed type, and the device body can be standardized.

In the above embodiment, the metal foil is used as the instrument body 1.
However, it may be attached to the inner surface of the instrument body 1 before attaching the lighting unit 7 and the like, in which case the heat dissipation effect is improved.

[0032]

According to the present invention, a sheet-like metal foil for covering and sealing a plurality of holes provided in the instrument body is attached to either the outer surface or the inner surface of the instrument body, The metal foil can be easily punched and opened for the holes used for attaching the equipment main body and for drawing in the power supply wire without using a special tool, and the metal foil for the other unused holes. Since the sealed state is maintained, it is possible to secure the tightness between the inside and outside of the instrument body with a simple structure, and easily perform maintenance such as replacement of the lamp arranged inside the instrument body and cleaning of the inside of the instrument body. be able to.

[Brief description of drawings]

FIG. 1 is a perspective view of a fixture body showing an embodiment of a lighting fixture of the present invention.

FIG. 2 is a perspective view showing a part of a lighting fixture of the present invention.

FIG. 3 is a cross-sectional view of a construction state of the lighting fixture of the present invention.

FIG. 4 is a perspective view of a part of the lighting fixture of the present invention during construction.

FIG. 5 is a perspective view of a single body of the lighting device of the present invention.

[Explanation of symbols]

 1 Instrument body 5 Flange 6 Hole 11 Sealing member 12 Metal foil

Claims (1)

[Claims] 1. A box-shaped instrument main body having an opening on the lower surface is provided with a plurality of holes used at least for attaching the instrument and for drawing in a power supply line, and selectively used, and the instrument is provided at the periphery of the opening. Provide a flange portion that is hermetically joined via a seal member on the mounting surface for mounting the main body, on either one of the outer surface or the inner surface of the instrument body,
A luminaire, characterized in that a sheet-shaped metal foil is attached to cover and seal the plurality of holes.