JPS6336575Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a lighting fixture, and particularly to a lighting fixture having a recessed fixture body with an open bottom.

(Prior Art) The main body of this type of lighting equipment is sometimes installed on the ceiling using a frame-like frame installed on the ceiling. Some types of frames have a double frame structure, each having an inner frame portion and an outer frame portion each having a rectangular shape. Each of the inner frame portion and the outer frame portion is constructed by assembling four straight bars into a rectangular shape. Therefore, the ends of each bar are assembled into a picture frame shape by abutting each other at right angles.

Conventionally, for this assembly and connection, connecting fittings were bent at right angles, placed along each bar to be connected, and then crimped using a special crimping tool. However, with this type of caulking, it is extremely troublesome to caulk with the end surfaces of the bars in close contact with each other, and in some cases, a step may be created between the two bars.

In addition, the inner frame and outer frame must be assembled in duplicate with a predetermined distance between them, but conventionally, a spacer is prepared and interposed between the two frames to separate each frame. It is made to stick to the spacer. However, such a configuration requires a dedicated spacer to maintain the distance, which has the drawback of increasing the number of parts used.

(Problems to be Solved by the Invention) In constructing a frame-like double frame for supporting lighting equipment, this invention involves connecting bars for the inner frame and outer frame, and The purpose is to make it easier to maintain the spacing.

(Means for solving the problem) This invention prepares a connecting fitting consisting of an L-shaped base plate and a bent wall with each peripheral edge thereof bent at right angles,
By inserting the slits at the ends of the bars that are to be connected to each other in the inner frame into the inner corner of this connecting fitting, and by fitting the sides of the bars into the inner bent wall. After assembling, secure with screws. On the other hand, the sides of the bars to be connected to each other in the outer frame are brought into contact with the outer bent wall, and then fixed with screws.

(Function) Each bar of the inner frame is fixed by being inserted or fitted into the connecting fitting, so even if there is a slight difference in the length of the bars, one bar will not be restrained by the other bar in any way. You can advance or retreat without being affected. Therefore, connection can be made without creating a gap at the abutted portion. Furthermore, since the two bars are connected by being inserted into the connecting fitting, the two bars can be connected without creating a step difference between them. The distance between the bars of the inner frame portion and the bars of the outer frame portion is maintained by the base plate portion of the connecting fitting serving as a spacer. Therefore, no special spacer is required. Furthermore, since each bar only needs to be screwed to the bent wall of the connecting fitting, a special caulking tool unlike the conventional one is not required for the connection operation, and no caulking operation is required.

(Example) An example of this invention will be described with reference to the drawings. 1 is a box-shaped instrument body with an open bottom; 2 is the instrument body 1;
A light-transmitting panel 3 that closes the open lower surface is a frame-like frame, which is supported on the ceiling surface. The frame 3 is constructed as a double frame by an inner frame part 4 and an outer frame part 5 (both assembled into a rectangular shape). An instrument main body 1 is supported by a frame 3. That is, the peripheral edge of the lower surface of the instrument main body 1 is fixedly supported by the frame 3 by the yoke 6. Moreover, the reason why the frame 3 is made into a double frame shape is to install the duct 7 between both frame parts 4.5. The duct 7 is for air conditioning, and is used for blowing warm air or sucking dirty indoor air.

Reference numeral 8 indicates a bar constituting the inner frame portion 4, and reference numeral 9 indicates a bar constituting the outer frame portion 5, both of which are shaped like an inverted T.
That is, an inverted T-shape is formed by a horizontal wall portion 10 and an upright wall 11 rising from the center thereof.
Regarding the bar 8 constituting the inner frame portion 4, a pair of L-shaped rails 12 and 13 facing each other are formed on the side surface of the upright wall 11 extending along its longitudinal direction, and the tip of the upright wall 11 A slit 14 is formed on the surface. Furthermore, there is a slightly elongated hole 16 on the side of the upright wall 11 through which a fixing screw 15 passes.
is formed. A slightly elongated hole 18 through which a fixing screw 17 passes is also formed in the upright wall 11 of the bar 9 constituting the outer frame portion 5.

Reference numeral 20 denotes a connecting fitting, which includes an L-shaped base plate 21 and a plurality of bent walls 22, 23, 2 whose peripheral edges are bent at right angles.
It is composed of 4 etc. Note that the inner corner protrudes outward to form a protrusion 25. The bent wall 22 has a screw hole 26 into which the screw 15 passing through the hole 16 in the bar 8 is screwed, and the bending wall 24 has a screw hole 27 into which the screw 17 passing through the hole 18 in the bar 9 is screwed.
is provided. The upright wall 23 serves to maintain the distance between the bars 8 and 9. Note that FIGS. 2 and 3 show FIG. 1 upside down.

The frame 3 is assembled as follows. First, for the inner frame portion 4, insert the rail 1 into the mutually intersecting side edges of the protruding portion 25 of the slit 14 of each bar 8.
A bent wall 22 on the inner peripheral edge is fitted between 2 and 13. Then, screw 15 is passed through hole 16 and screwed into screw hole 26. Inserting the slit 14 into the protrusion 25,
By fitting the bending walls 22 to the rails 12 and 13, generation of a step between the bars 8 can be avoided. Since the end surface of each bar 8 is inclined at 45 degrees with respect to its length direction, both bars 8 are assembled at right angles by abutting the end surfaces of both bars 8. At the time of this assembly, even if there is slight variation in the length of the bar 8, since the hole 26 is made a rather long hole, the position of the bar 8 can be adjusted slightly along its longitudinal direction. In other words, since variations in length can be absorbed, it is possible to avoid gaps at the abutting portions. By sequentially connecting the four bars 8 using the connecting fittings 20 as described above, the rectangular inner frame portion 4 can be constructed.

As for the outer frame portion 5, the side surface of the upstanding wall 11 of the bar 9 is placed against the bent wall 24 of the outer peripheral edge of the connecting fitting 20, and the screw 17 is passed through the hole 18 and screwed into the screw hole 27. In this case, even if there is slight variation in the length of the bar 9, the hole 18 is made a rather long hole, so the position of the bar 9 can be adjusted slightly along its longitudinal direction. In other words, since variations in length can be absorbed, it is possible to avoid gaps at the abutting portions. By sequentially connecting the four bars 9 using the connecting fittings 20 as described above, the rectangular outer frame portion 5 can be constructed.

When both the frame parts 4 and 5 are connected using the connecting fitting 20 in this way, the distance between the two bars 8 and 9 is set to the base plate part 2.
It is regulated by a bending wall 23 at the end edge of 1. As a result, the distance between both bars 8, 9, that is, both frames 4,
5 will be maintained at a specified size.

(Effects of the invention) As detailed above, according to this invention, when constructing a double frame-like frame for supporting a lighting fixture, the bars constituting each frame are mutually connected at the corners of the frame. To provide the effect of being able to connect easily and reliably without any difference in level.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a lighting fixture according to this invention, FIG. 2 is an exploded perspective view of the same, and FIG. 3 is a partially exploded perspective view. 1... Instrument body, 3... Frame, 4... Inner frame part, 5
...Outer frame, 8, 9...Bar, 10...Wall, 1
1... Standing wall, 12, 13... Rail, 14...
Slit, 15, 17... Screw, 16, 18...
Hole, 20...Connection fitting, 21...Substrate part, 22~
24...Bending wall, 25...Protrusion, 26, 27...
...screw hole.

Claims (1)

[Scope of utility model registration request] In a lighting fixture comprising a fixture main body with an open bottom surface and a frame-like frame consisting of a rectangular inner frame portion and an outer frame portion that support the periphery of the lower surface, the inner frame portion and the outer frame portion are connected to a wall portion. and an upright wall that stands up from this wall, each end of which is abutted against each other, an L-shaped base plate, and a first bent wall that is formed by bending the inner peripheral edge of the base plate; a second bent wall formed by bending an outer peripheral edge of the substrate section; a third bent wall formed by bending an end edge of the substrate section; and a protrusion provided at an inner corner of the substrate section. A first bent wall of the connecting fitting is fitted between a pair of rails provided on a side surface of an upstanding wall of a bar constituting the inner frame portion, and the connecting fitting is configured with Insert the protruding part of the metal fitting into the slit provided at the end of the upright wall of the bar, hold a screw that passes through the long hole provided in the upright wall of the bar, and fasten the screw into the screw hole provided in the upright wall of the bar. The second bent wall is brought into contact with the upright wall of the bar constituting the outer frame, and the bar is fixed with a screw passing through a long hole provided in the upright wall. A lighting fixture that is fixed by screwing into a screw hole in a standing wall.