JPS5926968Y2 - lighting equipment - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a recessed lighting fixture.

A conventional example is shown in Fig. 1 a, l).

That is, the L-shaped frames 1 and 4 are connected in the shape of an opening to form a mounting frame 8 for the lighting fixture main body 7, and this mounting frame 8 is suspended from a ceiling frame or the like using hanging bolts 13 and mounted on the ceiling 14. It is embedded in the

In this conventional example, in order to reduce weight and cost, only the reflector 15 is attached to the opening of the mouth-shaped mounting frame 8, and therefore the mounting frame 8 has sufficient strength against the force that would distort it. In order to ensure this, a large number of locking screws 16 must be used at the connecting portions of each frame 1.4, and spot welding must be performed, making assembly of the mounting frame 8 troublesome.

Furthermore, in order to prevent deformation due to the torsional force applied during construction, it is necessary to use a strong and high quality reinforcing plate 17 as shown in the figure, which warps and increases costs.

In view of the above-mentioned points, it is an object of the present invention to provide a lighting fixture which has sufficient strength, has few screwed parts, is easy to assemble, and is low in cost.

Embodiments of the present invention will be described in detail with reference to the drawings.

Reference numeral 1 denotes a metal frame having an inverted cross-section, and two L-shaped cut and raised pieces 3 are provided at both ends of the upper horizontal piece 2 of the frame 1.
A, 3B and one round mounting hole 18 are provided.

Further, rectangular slits 20 are provided at both ends of the vertical piece 19 of the frame 1.

On the other hand, reference numeral 4 denotes a metal frame body having an inverted cross-section, which is arranged adjacent to the frame body 1, and the upper horizontal piece 5 of this frame body 4 has the above-mentioned cut and raised pieces 3a, 3 at both ends. Square hole 2 corresponding to b
1 and a round mounting hole 22 corresponding to the mounting hole 18, and a bent portion 24 bent at right angles is provided on both ends of the vertical piece 23. A claw piece 25 bent inward at right angles is provided at the lower end.

As shown in FIG. 3, one of the cut and raised pieces 3a is engaged with the square hole 21 from above the upper horizontal piece 5 of the frame 4, and the edge of the cut and raised piece 3b and the upper horizontal piece 5 are connected to each other. The frames 1 and 4 are connected so that the claw pieces 25 of the frame 4 are inserted into the slits 20 from the outside of the vertical pieces 19 of the frame 1, and one of the opposing frames 1 and the other opposing frame 4 are framed in a mouth shape, and then the claw pieces 25 are tightened to form the mounting frame 8.

In other words, the square hole 21 and the edge of the vertical piece 5 form the engaged portions for the cut and raised portions 3 a and 3 b, which are the engaging portions.

Further, a hanging portion 9 is provided at the inner edge of the upper horizontal pieces 2, 5 of each of the frames 1, 4, and the lower end of the hanging portion 9 is bent inward to provide a horizontal mounting portion 10, A hole 26 is provided approximately at the center of each horizontal mounting portion 10 .

11 is a metal reinforcing frame with an upper opening and a U-shaped cross section;
One end of this reinforcing frame 11 is cut at an angle of about 45° and provided with a screw hole 27, while the lower surface of the other end extends laterally and the tip is cut at an angle of about 45° in the same direction as the cut end surface. A hole 28 corresponding to the screw hole 27 is provided.

Therefore, as shown in FIG. 2a and l), the cut end surface of one end of the reinforcing frame 11 and the tip end surface of the lower surface of the other end of the frame body 1 are adjacent to each other.
, 4, respectively, and each hole 26, 2
After placing the reinforcing frame 11 on the upper surface of the horizontal mounting portion 10 of each frame 1, 4 so that the reinforcing frame 11 is in communication with the reinforcing frame 11, another reinforcing frame 11 is placed on the upper surface of the extending portion 12 provided at the tip of the lower surface of the reinforcing frame 11. The ends of the cutting surface side are placed so that the holes 26, 27, and 28 communicate with each other, and the four reinforcing frames 11 are sequentially connected in a square shape, and the screws 29 are installed from below the horizontal mounting part 10. Screw on.

After that, the reflector 15 and lamp 30 are attached, the lighting fixture body 7 is assembled, and the locking pieces 33 provided at the lower ends of the frames 1 and 4 are inserted into the embedded holes 32 provided in the ceiling 14. Attachment, cover the cover attachment frame 34 to this attachment part and lock the cover 31,
The lighting fixture main body 7 is suspended from the hanging bolt 13 inserted through the mounting hole 22.

In addition, 35 is a stabilizer.

As described above, the present invention has the engaging parts provided at both ends of the horizontal piece of one frame engage the engaged parts of the other frame, and The shark claw pieces provided at both ends of the vertical piece of the other frame body were inserted into the slits made at both ends of the vertical piece of the body and tightened, so that the horizontal and vertical pieces of the frame body were engaged, respectively. By joining and fixing the adjacent frame bodies by mating or tightening, the mounting frame can move in the horizontal and vertical directions, and the slit and shark claw piece can be fixed by engaging the engaging part and the engaged part and tightening the slit and the shark claw piece. The mounting frame can be assembled easily and at low cost by simply engaging the four horizontal pieces of the frame and tightening and fixing the four vertical pieces. It can provide sufficient strength against forces that would distort the frame.

In addition, we have drilled mounting holes into which hanging bolts are inserted into the overlapping joints at both ends of the horizontal pieces of each frame to suspend the lighting fixture, so the horizontal pieces of the frames are not overlapped doubly. By drilling a mounting hole in the overlapping joint where the strength has been increased, it is possible to ensure the strength of the mounting frame to withstand the pulling force of the hanging bolt.

[Brief explanation of the drawing]

Figures 1a and 1) are perspective views and sectional views of the conventional example, and Figures 2a and 1) are perspective views and sectional views of the embodiment of the present invention, respectively.
The figure is an assembled perspective view of the same frame body as above, and Figures 4a and 4b are respectively assembled perspective views of the same reinforcing frame as above, in which 1 and 4 are frame bodies, 2 and 5 are upper horizontal pieces, 3 a and 3 b is a cut and raised piece, 7 is a lighting fixture body, 8 is a mounting frame, 9 is a hanging part, 10 is a horizontal mounting part,
11 is a reinforcing frame, 12 is an extension part, 13 is a hanging bolt, 19
20 is a vertical piece, 20 is a slit, 22 is a mounting hole, and 25 is a claw piece.

Claims (1)

[Scope of utility model registration request] A metal frame with an inverted cross-section is assembled into a square shape to form a mounting frame for the lighting equipment body, a reflective frame is covered over the upper opening of the mounting frame, and a lamp is arranged within the mounting frame. In the lighting fixture, a retaining part made of a cut and raised piece is provided at both ends of a horizontal piece of one opposing frame, and a retaining part made of a cut and raised piece is provided at both ends of the horizontal piece of the other opposing frame. A bent part is provided with an engaged part that fits together, a slit is provided at both ends of the vertical piece of one opposing frame, and a bent part is formed by bending at right angles on both ends of the vertical piece of the other opposing frame. A tightening claw piece to be inserted into the slit is provided, and the engaged part is engaged with the retaining part to frame the two pairs of frames in a mouth shape, and each tightening claw piece is inserted into each slit. Adjacent frames are joined and fixed by inserting and tightening, and hanging bolts are inserted into the overlapping joints at both ends of the horizontal side of each frame to create mounting holes through which the lighting fixture body can be hung. A lighting device characterized by comprising: