JPS6326902A - Lighting fixture - 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 [Field of Industrial Application] The present invention relates to a lighting fixture that is used by being attached to a ceiling or the like.

[Conventional technology]

Some lighting equipment is used with the lamp exposed, but some lighting equipment is used with a light control device such as a translucent cover or louver attached. Conventional lighting equipment of this type uses appropriate fixing parts such as decorative screws and V-shadow springs in the lower opening of the equipment body to removably attach covers and louvers to the equipment body. .

Furthermore, lighting equipment in which a light control body is attached to the equipment body by a so-called drop-in method is also known. To attach the light control body to the device body, lift one end of the light control body diagonally and hook it to one edge inside the bottom opening of the device body, then attach the other end of the light control body. The light control body is supported by being lifted and dropped onto the other edge of the device body.

[M points while the invention is trying to solve]

In the former of the above conventional examples, that is, when fixing parts such as decorative screws and V springs are used, when the light control body is removed from the device body, the engaging part etc. for engaging the above fixing parts etc. Since it is exposed on the main body of the fixture, if it is used with the light control body removed, it will look bad.For this reason, as a general rule, it must be used with the light control body attached.In addition, recently, the purpose of lighting equipment There is a tendency for a variety of light control bodies to be used depending on the situation, but with the conventional products mentioned above, when changing the type of light control body, the entire frame portion of the light control body must be replaced.

On the other hand, in the drop-in method described above, even if the light control body is removed, the appearance of the instrument body does not deteriorate, so it is possible to use a common instrument body regardless of the presence or absence of the light control body. However, in this case as well, when it is desired to change the type of light control body, the light control body must be replaced in its entirety, including its frame, which is extremely wasteful.

[Means for solving problems]

According to the present invention, a light control body is attached to the lower opening side of the instrument main body via a frame-shaped intermediate frame. That is, at least a pair of mutually opposing edges in the lower opening of the instrument main body are provided with a pair of bent portions that are each bent inward and further folded back upward on their distal ends. Further, the intermediate frame has a pair of hooks at both end portions corresponding to the bent portions, which support the intermediate frame on the instrument body by releasably engaging with the bent portions from above. will be established. Further, this intermediate frame is provided with an opening through which the light control body can be freely inserted and removed from above, and a stopper portion. This stopper part is formed by bending the lower edge of the intermediate frame inward and folding the tip side further upwards, and when the light control body is dropped into the intermediate frame to a predetermined position, a part of the light control body is removed. The light control body is received by engaging the light control body.

[Effect]

In the lighting equipment with the above configuration, light control is possible by dropping an appropriate light control body such as a louver or a translucent cover selected according to the application from the upper opening side of the intermediate frame to the position where it hits the stopper part. The body can be fitted and held in the intermediate frame. Conversely, the light control body can also be removed from the intermediate frame. A pair of hooks are provided at both ends of the intermediate frame, so when attaching this intermediate frame to the instrument body, first lift one end of the intermediate frame and attach one hook to one fold of the instrument body. Hang it on the bent part. Next, by lifting the other end side, the other hook part drops into the other bent part. In this way, the intermediate frame with the light control body can be attached to the instrument body.

In the above configuration, when changing the type of light control body, it is sufficient to use a common intermediate frame and change only the attachment of the light control body.

In addition, since the intermediate frame is supported in a drop-in manner to the instrument body, the appearance does not deteriorate even if the intermediate frame is not attached to the instrument body. Therefore, the light control body can also be used in a state where it is removed from the main body of the device.

〔Example〕

The fixture body 2 of the lighting fixture 1 shown in FIG. 1 is a combination of a sheet metal chassis 3 (see FIG. 4), a frame portion 4 that also serves as a reflector, a pair of end plates 5, etc. , this instrument body 2
The inner surfaces of both sides and the inner surfaces of both ends are light reflecting surfaces, respectively. The lower surface of the instrument body 2 is open. Further, a lamp socket 6 for holding a straight tube type fluorescent lamp (not shown) is attached to the chassis 3. The above structure may be the same as the conventional one.

A pair of edges 2a and 2b facing each other in the longitudinal direction at the lower opening of the instrument main body 2 are provided with a pair of bent portions 8.9 which are bent inward and whose distal ends are folded upward. There is. Similar bent portions 10°11 are also provided on the edges 2c and 2d in the width direction. An upward convex portion 12.13 that fits into grooves 21.22 provided at both ends of the intermediate frame 16, which will be described later, is formed in the longitudinal center of the bent portion 8.9.

An intermediate frame 16 provided with a light control body 15 is detachably attached to the lower opening of the instrument main body 2. The intermediate frame 16 is a rectangular frame made of sheet metal as shown in FIGS. 1 and 2. intermediate frame 1
The opening 17 on the upper surface side of the intermediate frame 16 is large enough to allow the light control body 15 to be dropped inside the intermediate frame 16. The intermediate frame 16 has both end portions 1 corresponding to the bent portions 8 and 9.
A pair of hook portions 18 and 19 are provided at 6a and 16b. The hook portions 18 and 19 are each bent downward as shown in FIG. 5, and the distance W1 between the hook portions 18 and 19 is
, 9 is somewhat wider than the distance W2 between them. Therefore, these hook portions 18, 19 can be releasably engaged with the inside of the bent portion 8.9 from above. A groove 21.22 is formed in the hook portion 18.19, located in the central portion thereof in the longitudinal direction. This groove 21.22 fits into the aforementioned convex portion 12.13, and the intermediate frame 16 is positioned.

Further, a stopper portion 24 is formed on the lower surface side of the intermediate frame 16. This stopper portion 24 is formed by bending the lower edge of the intermediate frame 16 inward over its entire circumference and further folding the tip end upward. This stopper part 24 is constructed by dropping the light control body 15 inside the intermediate frame 16 72
At 1 o'clock, the lower edge of the light control body 15 hits the
The light control body 15 is received at a predetermined position. Further, by providing the stopper portion 24, the intermediate frame 16 is deflected.

It becomes difficult to deform due to twisting, etc. That is, the stopper portion 24 also serves as a reinforcing portion of the intermediate frame 16.

The light control body 15 is, for example, a louver made of a combination of vertical and horizontal lattice bodies as shown in FIG. 2, or a cover made of translucent resin as shown in FIG. 16 (the planar shape is approximately rectangular).

Further, in this embodiment, presser clamps 25 and 26 (see FIG. 2) are used to more securely hold the light control body 15. These temporary pressers 25 and 26 hold the light control body 15 in the intermediate frame 1.
6 and then fixed to the intermediate frame 16 using screws 27, and these presser plates 25 and 26
The light control body 15 is stopped from moving in the vertical direction. Note that the presser plates 25 and 26 are not necessarily required.

In the lighting fixture 1 having the above configuration, the light control body 1 is attached to the fixture body 2.
5, first insert an appropriate light control body 15, such as a louver or a cover, selected depending on the application into the intermediate frame 16 in the manner described above.

Thereafter, by lifting one end side of the intermediate frame 16, one hook portion 18 is hooked onto the bent portion 8 of the instrument body.

Next, while lifting the other end of the intermediate frame 16 to a horizontal position and shifting the intermediate frame 16 toward the bent portion 9, the hook portion 19 is dropped into the bent portion 9. In this way, the intermediate frame 16 can be attached to the lower opening of the instrument body 2. FIG. 6 shows a state in which the louver type light control body 15 is attached. If the light control body 15 is not used, there is no need to use the intermediate frame 16.

According to the lighting fixture 1 having the above configuration, when it is desired to change the type of light control body 15, it is sufficient to use the common intermediate frame 16 as is and replace only the light control body 15. In addition, the intermediate frame 16
Since it is supported in the device body 2 in a drop-in manner as described above, the locking portion is not exposed to the device body 2, as is the case when using a decorative screw, a spring, or the like. Therefore, the intermediate frame 16
Since the appearance does not deteriorate even if the light control body 15 is removed, it can also be used with the light control body 15 removed. That is, the common instrument main body 2 can be used regardless of whether the light control body 15 is used or not.

In the above embodiment, hook portions 18 and 19 are provided at both ends of the intermediate frame 16 in the longitudinal direction, but the hook portions 18 and 19 are not limited to this. For example, the hook portions 18 and 19 are provided at both widthwise ends of the intermediate frame 16, and the bent portions 10 and 19 are provided at both widthwise edges of the instrument body.
．． 11 may be used.

〔Effect of the invention〕

According to the present invention, a common device main body can be used regardless of whether a light control body is used or not, and when a light control body is used, a common intermediate frame can be used to provide a desired type of control. You can select and install the light body. Therefore, major parts including the fixture body can be made common, and a highly versatile lighting fixture can be obtained. Further, by providing the stopper portion, the intermediate frame is reinforced, and even if a relatively thin sheet metal is used, the intermediate frame can be made less likely to deform.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, with FIG. 1 being a perspective view with the intermediate frame removed, FIG. 2 being a perspective view showing the light control body and the intermediate frame, and FIG. A perspective view showing an example, Fig. 4 is a perspective view showing the end of the instrument body and the intermediate frame, Fig. 5 is a cross-sectional view showing a part of the instrument body and the intermediate frame, and Fig. 6 shows the light control body installed. It is a perspective view of a state. 1... Lighting fixture, 2... Fixture body, 2a, 2b...
・-pair of edges, 2c, 2d...pair of edges, 8, 9・
...Bending part, 15... Light control body, 16... Intermediate frame,
17...Opening, 18.19...Catch is part, 24...
・Stopper part. Applicant's agent Patent attorney Takehiko Suzue i~27 ■ Figure 4

Claims (1)

[Scope of Claims] A frame-shaped device body whose inner surfaces on both sides and both ends are light reflecting surfaces and whose lower surface is open, and a frame-shaped device body which is attached to the lower open side of the device body. It comprises an intermediate frame and a light control body that is fitted and held in the intermediate frame, and at least a pair of mutually opposing edges of the lower opening of the device main body are bent inwardly and further have tips thereof. A pair of bent portions are provided with the sides folded upward, and the intermediate frame has both end portions corresponding to the bent portions that are removably engaged with the bent portions from above. A pair of hook parts are provided to support the frame on the device main body, and the intermediate frame has an opening through which the light control body can be inserted and removed from above, and a lower edge of the intermediate frame is bent inward and a tip is provided. The stopper part is provided by folding the side further upward and receiving the light control body by engaging a part of the light control body when the light control body is dropped to a predetermined position. lighting equipment.