JPH0532892Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an insect-proof lighting fixture that prevents light leakage from the corners of a cover frame that supports a lighting cover.

[Conventional technology]

Conventionally, in order to prevent light leakage from the corners of the cover frame, mating surfaces with an angle of 45° were formed at both ends of the front, left, and right frame members that had cover holders inside, and one side of the L-shaped corner member was formed. One part of the corner member is fitted inside one end of the adjacent frame member, and the other part of the corner member is fitted inside the other end of the adjacent frame member, and the corner member is fitted with the adjacent frame member. are fixed to each other, adjacent frame members are connected via corner members, and a bent piece is provided at the tip of each piece of the corner member to approximately contact the inner surface of the adjacent frame member. It is known from the publication No. 62-17922. The corner member is formed by bending a metal plate, and its two pieces and the bent pieces on both ends block the light from the lamp and create a space between the 45° end faces of adjacent frame members that abut against each other. This prevents light from leaking from the corners of the cover frame.

[The problem that the idea aims to solve]

However, the front, left, and right frame materials are made of synthetic resin.
Because it is difficult to achieve extremely accurate dimensional accuracy, the positional relationship between these and the corner fittings may not be as designed, and due to slight misalignment, the vertical alignment at the corners of the cover frame may be difficult to achieve. There is a risk of light leakage from the surface. Moreover, according to the conventional structure, since the corner member or the sheet metal is bent and formed, this member cannot cover the lower surface portion of the 45° mating surface of the adjacent frame member, and therefore, the cover There was a problem that light leaked easily from the lower surface of the corner of the frame.

An object of the present invention is to provide an insect-proof lighting fixture that can prevent light leakage at the corners of a cover frame and reduce insect intrusion from the cover frame side.

[Means to solve the problem]

This invention has a cover holder on the inside, and connects adjacent frame members with corner members to form a cover frame, and the cover holder of this frame has a cover that integrally extends from the periphery of the lighting cover. The present invention is applied to an insect-proof lighting fixture in which the lighting cover is supported by hooking the annular overhanging edge. And in order to achieve the above purpose,
The corner member has a cover holder on the inside that is flush with and continuous with the cover holder of the frame member, and has an approximately L length.
a main part that is exposed between adjacent frame members, and a shape that fits along the inner surface shape of the hollow part of the frame member, and is integrally provided at both ends of the main part, respectively; a fitting part that fits into the hollow part of the frame material and covers the seam between the frame material and the main part from the inside; Each of the cover holders is hooked in surface contact with the upper surface of each of the cover holders that are continuous on the same plane of the cover frame.

[Effect]

The corner members connect adjacent frame members at their corners. This connection is made by fitting the fitting portion of the corner member into the hollow portion at the end of the frame member. By the above connection, the L-shaped main part of the corner member is exposed between adjacent frame members, and the fitting part is provided along the inner surface shape of the hollow part, and the frame member The mating portions in the vertical direction and the lower surface between the main portion and the main portion are covered from the inside to prevent light leakage from these mating portions.
Moreover, by the above assembly, the cover holders of the frame member and the main part are continuous on the same plane, and these hook and support the annular projecting edge of the lighting cover. Since the overhanging edge is hooked in surface contact with the top surface of each cover holder connected flush, there is no gap between each cover holder and the overhanging edge, and therefore the lighting cover Insects can be prevented from entering the inside of the appliance through the hooked part.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

In the figure, 1 is a rectangular cover frame, 2 is a lighting cover,
These form the light control body of the insect-proof lighting fixture. As shown in FIG. 5, the cover frame 1 is formed from front, rear, left and right frame members 3 and four corner members 4.

The frame material 3 is made of non-transparent synthetic resin, and both ends thereof are cut off in parallel, for example, perpendicular to the length direction. Furthermore, as shown in FIGS. 1 and 4, the frame member 3 has a hollow portion 3a, and is formed by integrally protruding a cover receiver 5 on the inside and a seal receiver 6 above the cover receiver. There is. These supports 5 and 6 are rib-shaped and are provided over the entire length of the frame member 3 in the longitudinal direction. And frame material 3
Through holes 7 and 8 are formed at both ends of the upper wall of the hollow portion 3a and the seal receiver 6, respectively.

The corner member 4 is made of synthetic resin, and the main part 9
and fitting portions 10 integrally formed at both ends of the main portion 9. The main part 9 has a substantially L-shaped planar shape, and its upper and lower surfaces are covered by the frame material 3.
A cover receiver 11 is provided flush with the upper and lower surfaces of the cover receiver 5, and a cover receiver 11 is provided flush with the upper and lower surfaces of the cover receiver 5.
is formed. The fitting portion 10 has a shape that fits exactly along the inner surface shape of the hollow portion 3a, for example, a fourth shape.
As shown in the figure, it has a U-shaped cross section, and is fitted into the inner surface of the hollow part 3a of the frame member 3 to connect the frame member 3 and the main part 9.
It is designed to cover the joint from the inside. Fixing holes 12 communicating with the through holes 7 are formed in the upper surface of the fitting portion 10, respectively. Note that 4a in FIG. 1 is a contact surface formed between the main portion 9 and the fitting portion 10.

Each corner member 4 is fixed in a fixing hole 12 communicating with the through hole 7 through a through hole 7, with a fitting portion 10 fitted into a hollow portion 3a at an end of the frame member 3 disposed adjacent to each other. They are connected to the frame member 3 by screwing in screws 13, respectively.

The illumination cover 2 is made of a transparent synthetic resin or the like and has a shallow dish shape, for example. This cover 2 is inserted from above the cover frame 1 and has an annular projecting edge 2a integrally projecting outward from the upper end of the periphery, which is continuous from above the cover frame 1 in a flush manner. By hooking on each cover receiver 5, 11, the lower opening of the cover frame 1 is closed and supported.

Further, reference numeral 14 in the figure represents a connecting fitting provided inside the corner member 4. As shown in FIGS. 1 and 4, this metal fitting 14 is formed by bending connecting portions 16 at both ends of a substantially L-shaped packing receiving portion 15 and fixing them to these connecting portions 16, respectively. A hole 17 is drilled, and a seal receiving part 1 is formed.
5 with a closing piece 18 standing upright. As shown in FIGS. 2 and 3, this connecting fitting 14 has connecting parts 16 at both ends stacked on the lower surface of the end of the seal receiver 6 of the frame member 3, and is connected to the fixing member through the through hole 8. Adjacent frame members 3 are connected and attached by screwing connection screws 19 into the holes 17, respectively. With this installation, the packing receiving portion 15 is attached to the frame member 3 as shown in the second figure.
The upper end of the closing piece 18 is disposed flush with and continuous with the packing receiver 6, and the upper end of the closing piece 18 is brought into contact with the back surface of the upper wall of the main portion 9, as shown in FIG.

As shown in FIGS. 3 and 4, an insect-proofing packing 20 is attached to the packing receiving part 6 and the packing receiving part 15, which are connected flush with each other as described above. In addition, 21 in FIG. 4 is a chassis to which a lamp, a stabilizer, etc. (not shown) are attached, and a downward flange 21a whose entire periphery is bent.
is pushed into the insect repellent gasket 20.

In the insect-proof lighting fixture with the above configuration, since the cover frame 1 has the above-described configuration, the corners of the cover frame 1 are light leakage can be eliminated. At the joint between the main part 9 and the adjacent frame member 3 connected through it,
The fitting part 10 of the corner member 4 is fitted into the end of the hollow part 3a of the frame member 3, and the fitting part 10 covers the above-mentioned mating part from the inside. Therefore, regardless of some dimensional errors in the frame material 3 and the corner members 4, due to the light shielding effect of the fitting portion 10, light from the mating portion between the frame material 3 and the main portion 9 in the vertical direction and on the bottom surface is transmitted. Can prevent leakage. Therefore, a high-quality lighting fixture with no light leakage at the corners of the cover frame 1 can be obtained.

Since there is no light leakage at the corners of the cover frame 1 as described above, it is also possible to prevent insects from entering the lighting equipment through these corners. In addition, the annular projecting edge 2a of the lighting cover 2 is hooked in surface contact with the upper surface of each cover receiver 5, 11 which is connected flush with the frame member 3 and corner member 4.
There is no gap between each cover receiver 5, 11 and the overhanging edge 2a. Therefore, lighting cover 2
Insects can be prevented from entering the inside of the appliance through the hooked part.

Moreover, the seal receiving part 15 is provided on the connecting fitting 14 attached to the corner of the cover frame 1, and the insect-proof seal 20 is supported at the corner, even though the frame material 3 does not form the corner of the cover frame 1. First, the support of the insect repellent gasket 20 at the same corner is not impaired, and the desired insect repellent performance can be exhibited.
Since the adjacent frame members 3 are connected by the connecting fittings 14 and the corner members 4, the assembly strength of the cover frame 1 can be improved.

Although the above-mentioned embodiment is constructed as described above, the connecting fittings may be omitted in the present invention.
When the fitting portion of the corner member is made longer, the fixing screw that fixes the elongated fitting portion to the frame member can be omitted. In addition, the number of frame members may be three or more, and the end surfaces of the frame members may not be parallel. In that case, upper and lower apertures provided at the boundary between the main part and the fitting part of the corner member It may be implemented by providing the contact surfaces in a diagonal manner.
Further, the hollow portion of the frame member does not have a completely hollow structure, and may be partially open.

[Effect of idea]

According to the present invention configured as described above, the fitting portions provided at both ends of the main portion of the corner member connecting adjacent frame members of the cover frame are fitted into the hollow portions of the adjacent frame members. Since the joints between the frame material and the main part are covered from the inside, light can be prevented from leaking in the vertical direction between the frame material and the main part at the corners of the cover frame and from the joints on the bottom surface. At the same time, each cover holder of the frame material and corner member is lined up flush, and the annular overhanging edge of the lighting cover is brought into surface contact with the upper surface of the cover holder, and is hooked and supported, thereby creating a space between the overhanging edge and the cover holder. Since there are no gaps between the covers, it is possible to prevent insects from entering from the cover frame side.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is an exploded perspective view of the main parts, Fig. 2 is a perspective view showing a corner of the cover frame, and Fig. 3 is a corner of the cover frame to which an insect-proof gasket is attached. Fig. 4 is a perspective view showing the parts shown in Fig. 3.
5 is a perspective view showing the cover frame and the illumination cover separated, and FIG. 6 is a sectional view taken along the line -- in FIG. 3. 1...Cover frame, 2...Lighting cover, 2a...
Overhanging edge, 3...Frame material, 3a...Hollow part, 4
... Corner member, 5, 11 ... Cover holder, 9 ...
...main part, 10...fitting part.

Claims (1)

[Scope of utility model registration request] A cover frame is formed by having a cover holder on the inside and connecting adjacent frame members with corner members, and the cover holder of this frame has an annular overhanging edge integrally extending from the periphery of the lighting cover. In the insect-proof lighting fixture in which the lighting cover is supported by hooking the corner member, the corner member has a cover holder on the inside that is flush with and continuous with the cover holder of the frame member, and has a substantially L shape, and A main part exposed between the frame members and a hollow part of the frame member are integrally provided at both ends of the main part with a shape that fits along the inner surface shape of the hollow part of the frame member. and a fitting part that fits into the frame material and covers the joint between the frame material and the main part from the inside, and connects the annular projecting edge of the lighting cover flush with the cover frame. An insect-proof type lighting device characterized in that each of the above-mentioned cover holders is hooked in surface contact with the upper surface thereof.