JPS6332802A - Grid light control for lighting equipment - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a grid-like light control body used by being attached to a lighting equipment.

[Conventional technology]

A lattice-shaped light control body called a baffle or louver type can prevent the light from the lamp from scattering in unnecessary directions, so it is useful, for example, for office or store lighting, or when viewing displays through glass. It is extremely effective in preventing reflections of lighting equipment on glass, etc.

The structure of the conventional grid-like light control body is, for example,
As seen in Publication No. 728, a lattice body consisting of vertical lattice plates and horizontal lattice plates is housed in a frame-like frame body formed by combining an inner frame and an outer frame. Both the frame and the lattice are easily deformed when used alone, but by fitting the frame and the lattice into each other in this way, the entire structure becomes difficult to deform.

[Problem that the invention seeks to solve]

However, the conventional product described above has a structure in which the end of the lattice body is fitted into a rectangular tube that combines an outer frame and an inner frame, so the structure is complicated because there are many types of parts that make up the frame, and it is difficult to assemble. It was also disadvantageous in terms of cost, as it was time-consuming.

[Means for solving problems]

The lattice light control body of the present invention includes a frame shaped like a frame and attached to a lighting equipment body, a plurality of vertical lattice plates and a plurality of horizontal lattice plates housed inside the frame and intersecting with each other. and a lattice body consisting of a lattice plate. The upper opening of the frame is large enough to allow the lattice to be dropped into it,
The lower edge of the frame is bent inward over the entire length and width of the frame, and the tip is bent upward.

Fold it back to form a raised piece.

Then, a pair of vertical lattice plates located at the outermost side of the plurality of vertical lattice plates constituting the lattice body are fitted so as to be inscribed in each of the rising pieces of the bent portion along the vertical direction, A lattice-shaped light control device characterized in that a pair of horizontal lattice plates located at the outermost side of a plurality of horizontal lattice plates are fitted so as to be inscribed in each of the rising pieces of the bent portion in the lateral direction. It is the body.

[Effect]

In the lattice-shaped light control body having the above structure, the lattice body is dropped from the upper opening side of the frame, and a pair of vertical lattice plates and a pair of horizontal lattice plates located on the outside are inscribed in each of the rising pieces of the frame. The lattice body is housed in the frame by fitting it in the same way. By doing this, the frame body and the lattice body fit into each other over the entire circumference and mutually reinforce each other, and the rigidity of the frame body is increased by the bent portions formed in the frame body. It is possible to make the structure difficult to deform as a whole. The grid body can be easily assembled by simply dropping it into the frame body.

In addition, the frame body does not need to be a rectangular cylinder, which reduces the number of parts, and it is also possible to use common lattice plates of one type each for the vertical lattice plates and horizontal lattice plates that make up the lattice body. It is.

〔Example〕

The main body 1 of the lighting equipment shown in Fig. 4 is a frame-shaped assembly of sheet metal side plates 2, end plates 3, inner reflector plates 4, etc., so that the inner surface becomes the first incident surface. The lower surface of the main body 1 is open. Inside the device body 1, there is a lamp socket 5 for holding a straight tube type fluorescent lamp (not shown).
is attached. The above configuration may be the same as the conventional one.

At both ends of the lower opening of the instrument body 1, there are a pair of folded parts 7, each of which is bent inward and whose tip side is folded upward.
8 is provided. A groove 2 provided at both ends of the frame body 14, which will be described later, is provided at the center portion in the length direction of the folded portion 7.8.
An upward convex portion 10.11 is formed into which 7.28 fits.

Then, the folded part 7.8 is attached to the lower opening of the instrument main body l.
The lattice light control body 13 is removably attached using the. This light control body 13 consists of a frame 14 having a frame shape and a lattice body 15 housed inside the frame 14. This lattice body 15 includes a plurality of vertical lattice plates 16, 17, 18 and a plurality of horizontal lattice plates 20, as will be described in detail later.
, 21° and 22 are assembled so as to cross each other.

The frame body 14 is a rectangular frame member made of sheet metal, as shown in FIGS. 4 and 5.

The upper surface opening 14a of the frame body 14 is sized so that the grid body 15 can be dropped from above. And this frame work 4
A pair of hook portions 24 and 25 are provided at both end portions corresponding to the folded portions 7 and 8 described above. The hook portions 24 and 25 are each bent downward,
It can be releasably engaged with the inside of the folded parts 7 and 8.

A groove 27.28 is formed in the hook portion 24.25 at a central portion thereof in the longitudinal direction.

This groove 27.28 fits into the aforementioned convex portion 10.11,
The frame body 14 is positioned.

Furthermore, bent portions 30.31° and 32.33 are provided at the lower edge of the frame 14 over the entire length and width of the frame 14. Each of the bent portions 30 to 33 is formed by bending the lower edge of the frame 14 inward and further folding the tip side upward, and has rising pieces 30a, 31a on the tip side.
, 32a, and 33a (see FIG. 5).

The lattice body 15 includes a plurality of vertical lattice plates 1B having a common shape.
, 17.18, and a plurality of horizontal lattice plates 2 having a mutually common shape.
It consists of 0,21.22. Each grid plate 16-18.20
22 is made of metal such as aluminum, synthetic resin, or the like. Note that the pair of vertical lattice plates 16, 18 located on the outermost side and the vertical lattice plates 17 located on the inside are used with their vertical relationship reversed, but their shapes themselves are the same. In this embodiment, the outer vertical lattice plate 16°1
8 has a horizontal lattice plate 2 at a predetermined pitch in its lower half.
A downward slit 35 is formed at a position intersecting 0 to 22. Furthermore, one slit 36 is formed in the upper half of the inner vertical lattice plate 17 at the same pitch as above.

Moreover, upward slits 38 are formed at both ends of the horizontal lattice plates 20 to 22 at positions corresponding to the slits 35 of the outer vertical lattice plates 16,18.

Furthermore, downward slits 40 are formed in the horizontal lattice plates 20 to 22 at positions corresponding to the slits 36 of the inner vertical lattice plate 17. These slits 35.36, 38.4
The vertical length of 0 is 16 to 18.2 lattice plates.
The size is half of the board width of 0 to 22. Therefore, the first
As shown in the figure, when the slits 35 and 38 and the slits 36 and 40 are fitted together, the upper and lower surfaces of each of the lattice plates 16 to 18 and 20 to 22 are flush with each other.

Further, at the lower edges of both ends of the vertical lattice plate 17, there are rising pieces 32a of bent portions 32 and 33 along the horizontal direction.

33a, these rising pieces 32a, 3
A downward cut groove 42 (see FIG. 1) is formed that can be fitted with the groove 3a. Further, the lower edges of both ends of the horizontal lattice plate 20° 21.22 can be fitted with the rising pieces 30a, 31a of the bent portion 30.31 along the vertical direction at positions intersecting with the rising pieces 30a, 31a. A downward kerf 43 is formed. These kerfs 42 and 43 are arranged so that the distance C from the kerf 43 to the plate end surface is equal to the bending part 30, as shown in FIGS.
By making the bending width d about 0.5 to 1n shorter than the bending width d, it is possible to easily drop the lattice plate 16 inside the rising piece 30a. The same goes for the other kerf 42. It should be noted that if the dimension C is made too short than the dimension d, the frame 14 tends to bend in the direction shown by the imaginary line m in FIG.

In order to assemble the lattice body 15 to the frame body 14, the vertical lattice plates 16 to 18 and the horizontal lattice plates 20 to 22 are assembled in advance into the shape shown in FIG.
Fall from. And a pair of vertical lattice plates 1 located on the outside
6.18 are fitted so as to be in contact with the inner surfaces of the rising pieces 30a, 31a along the vertical direction, and a pair of horizontal lattice plates 20.22 located on the outside are fitted so as to touch the inner surfaces of the rising pieces 32a, 33a along the horizontal direction. Fit so that the sides touch.

At this time, each cut groove 42, 43 has a rising piece 30
a, to 33a.

By doing this, the outer peripheral part of the grid body 15 and the frame body 14 fit together over the entire circumference, and the frame body 14 and the frame body 15
In addition to reinforcing each other, the bent portions 30 to 33
Since the rigidity of the frame body 14 is increased by this, the frame body 14 can be made to be less prone to deformation such as bending or twisting as a whole.

In particular, in this embodiment, the grid plate 16.18°20
．． 22 is not only inscribed in the rising pieces 3Qa and 33a, but also the cut grooves 42 and 43 are fitted into the rising pieces 30a to 33a, so that the connection between the frame 14 and the lattice body 15 becomes even stronger. , it becomes difficult to deform. Moreover, the simple operation of just dropping the lattice body 15 into the frame body 14 allows
The grid body 15 can be assembled to the frame body 14.

In addition, in order to hold the grid body 15 more reliably, the fifth
Holding plates 45 and 46 as illustrated in the figure may also be used together. After the lattice body 15 is dropped into the frame body 14, the holding plates 45 and 46 are fixed to both ends of the upper surface of the frame body 14 using screws 47.

These holding plates 45 and 46 can prevent the grid body 15 from being pulled out.

To attach the above-mentioned lattice-shaped light control body 13 to the appliance main body 1, by lifting one end side of the light control body 13, one of the hooks 24 is hooked onto one of the folded parts 7 of the appliance body. . Next, while lifting the other end of the light control body 13 to a horizontal position and shifting the light control body 13 toward the other folded part 8, the hook portion 25 may be dropped into the folded part 8.

FIG. 6 shows a state in which the light control body 13 is attached to the instrument main body 1.

In the above embodiment, the light control body 13 is inserted into the folded portion 7.8 of the instrument main body 1, but the light control body 13 is inserted into the folded portion 7.8 of the instrument main body 1.
may be attached to the instrument body 1.

Incidentally, as shown in FIG. 7, the lattice plate 21 may be placed on the rising piece 30a. In this case, the above-mentioned cut grooves 43 are not necessary in the lattice plate 21. Also the 8th
As shown in the figure, a notch 50 may be provided instead of the cut groove to allow the rising piece 30a to escape.

〔Effect of the invention〕

According to the present invention, the number of parts constituting the frame body and the lattice body is small, and it is possible to obtain a lattice-like light control body that is easy to assemble and difficult to deform. It is also effective in reducing costs, such as saving mold costs for making parts.

[Brief explanation of drawings]

1 to 6 show an embodiment of the present invention, FIG. 1 is a perspective view of a part of the light control body, FIG. 2 is an exploded perspective view of a part of the light control body, and FIG. 3 is a perspective view of a part of the light control body. A cross-sectional view of a part of the light control body, Figure 4 is a perspective view of the instrument body and light control body disassembled, Figure 5 is a perspective view of the frame and grid body, and Figure 6 is a perspective view of the light control body installed. FIG. FIGS. 7 and 8 are partial sectional views showing other embodiments of the grid plate, respectively. 1... Lighting equipment body, 13... Grid light control body, 14
...Frame body, 14a...Top opening, 15...Lattice body, 16-18...Vertical lattice plate, 20-22...Horizontal lattice plate, 30-33...Bend portion, 3Qa~33a...
Standing piece. Applicant's agent Patent attorney Takehiko SuzuejJ Figure 4 Figure 5

Claims (2)

[Claims] (1) A lattice-shaped light control body that is attached to the lower opening of a frame-shaped lighting fixture body whose inner surface is a reflective surface, and this light control body is attached to the light fixture body in the form of a frame. and a lattice body made up of a plurality of vertical lattice plates and a plurality of horizontal lattice plates housed inside the frame body and intersecting with each other, and the top opening of the frame body is The size is such that the lattice body can be dropped into it, and the lower edge of this frame is bent inward over the entire length and width of the frame, and the tip side is further folded upward to form a standing piece. A pair of vertical lattice plates, which are the outermost of the plurality of vertical lattice plates that form the bent portion and constitute the lattice body, are inscribed in each of the rising pieces of the bent portion along the vertical direction. At the same time, a pair of horizontal lattice plates located at the outermost side of the plurality of lateral lattice plates are fitted so as to be inscribed in each of the rising pieces of the bent portion in the lateral direction. Grid-shaped light control body for lighting equipment. (2) A cut groove that can be inserted into the rising piece is formed on the lower edge of the lattice plate in a direction intersecting with the rising piece of the bent portion, and the cut groove and the rising piece are fitted into each other. A grid-like light control body for a lighting device according to claim 1, characterized in that: