JPS6141864Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ceiling having a lighting fixture, and more particularly to a ceiling having a lighting fixture in which the lighting fixture is installed between any of the opposing ceiling bars of a plurality of ceiling bars suspended from a ceiling slab.

Ceilings with this type of lighting fixtures generally have a tertiary
As shown in the figure and FIG. 4, a ceiling bar 2 formed in a lattice shape by combining a main T-bar 7 and a cross T-bar 8 is suspended from a ceiling slab 1 by a hanging tool 13 such as a hanging bolt, and the lattice is The ceiling panel 9 to be closed is attached to the ceiling bar 2. Conventionally, as shown in FIG. The lighting fixture 3 was fixed to the ceiling by screwing a screw 32 into the yoke 4 installed between the two from the inside surface of the lighting fixture 3. Therefore, when installing the lighting fixture 3, while supporting the lighting fixture 3 with your hand, insert the screw 32 into the yoke 4.
This has the disadvantage of being difficult to work with and has poor work efficiency. Additionally, it is desirable to install lighting fixtures so that the height of the opening periphery and the ceiling panel is the same, but when installing using the above method, adjustment may be difficult and the height of the lighting fixtures may become uneven. It was hot. On the other hand, the yoke 4 has leg pieces 18 fixed to different sides at both ends of the horizontal piece 17 in the longitudinal direction, as shown in FIG. As a result, the yoke 4 was structurally unstable, unable to stand on its own, and easily twisted in the direction of the arrow in FIG. 2.

The present invention was developed in view of the above-mentioned problems, and its purpose is to improve workability by facilitating the installation of lighting equipment to the yoke. However, the purpose is to make it possible to adjust the height at which the lighting equipment is attached to the yoke, and another purpose is to make it easier to attach the yoke to the ceiling bar. The problem is that adjacent yokes are connected in a straight line to maintain a constant distance between opposing yokes.

Hereinafter, embodiments of the present invention will be described based on the drawings. A ceiling equipped with a lighting fixture according to the present invention is a ceiling in which a lighting fixture 3 is installed between any two of the ceiling bars 2 facing each other among a plurality of ceiling bars 2 suspended from a ceiling slab 1 and arranged on the same horizontal plane. A pair of yokes 4 intersecting the ceiling bars 2 are installed horizontally apart from each other between the ceiling bars 2 on which the lighting fixtures 3 are attached, and the yokes 4 are installed on the lighting fixtures 3 that protrude upward from between the yokes 4. A supporting piece 5 is attached at a position facing the lighting fixture 3, and the supporting piece 5 protruding from the lighting fixture 3 is placed on the yoke 4, so that the lighting fixture 3 is held between the yokes 4, and the yoke 4 is held horizontally between the ceiling bars 2. A horizontal piece 17 having a U-shaped cross section and opening downward, and a pair of leg pieces 1 fixed to both ends of the horizontal piece 17 in the longitudinal direction.
8, the leg piece 18 has a vertical piece 26 whose lower end is fitted onto the ceiling bar 2, and a horizontal piece 27 which is fixed to the upper end of the vertical piece 26 and has a U-shaped cross section and is open downward, forming a substantially T-shape. Both ends of the horizontal piece 17 are fitted into the side halves of the horizontal piece 27, so that the horizontal piece 27 and the horizontal piece 1
7 are connected on the same straight line, and in this embodiment, the ceiling bars 2 are assembled into a square lattice shape by the main T-bar 7 and the cross T-bar 8, and a ceiling panel that closes the lattice is used. 9 is shown attached to the ceiling bar 2. As shown in FIG. 4, the ceiling bar 2 includes main T-bars 7 having a substantially T-shaped cross section, which are arranged parallel to each other at equal intervals in the horizontal direction, and main T-bars 7 that are orthogonal to the main T-bars 7 and parallel to each other at equal intervals in the horizontal direction. It is composed of a cross T-bar 8 having a substantially T-shaped cross section, and both T-bars 7,
8 intersect to form a square grid. Both T
The bars 7 and 8 are arranged so that the horizontal piece 10 is horizontal at the lower end of the vertical piece 11, as shown in FIG.
1 has a bulge 12 at the upper end thereof, and is suspended from the ceiling slab 1 by holding the bulge 12 with a hanger 14 at the lower end of a hanging bolt 13 whose upper end is fixed to the ceiling slab 1. The ceiling panel 9 is formed in the shape of a square pyramid with an open upper and lower base, and the opening at the upper base serves as a mounting hole 15 into which the lighting fixture 3 is mounted. A flange portion 16 projecting horizontally is formed at the lower bottom periphery of the ceiling panel 9, and this flange portion 16 is connected to the horizontal pieces of the T-bars 7 and
0, the ceiling panel 9 is attached to the ceiling bar 2. At the periphery of the mounting hole 15 on the upper surface of the ceiling panel 9, there is a pair of yokes 4 having a U-shaped cross section and opening downward from which leg pieces 18 that fix the lower end to the ceiling bar 2 hang from both ends of a horizontal piece 17 arranged horizontally. will be placed. A spacer 19 is interposed between the yokes 4 to maintain parallelism, and the leg pieces 18 of the yokes 4
A split groove 20 that fits into the bulge 12 of the ceiling bar 2 is formed at the lower end. The upper part of the lighting fixture 3 protrudes above the ceiling panel 9 through the mounting hole 15,
Elongated holes 21 are formed at both ends of the side surface perpendicular to the yoke 4 of the lighting fixture 3, and the elongated holes 21 are fixed to the support piece 5.
Fixing screw 2 protruding into the inside of the lighting fixture 3 through 1
By screwing a wing nut 23 onto 2 from the inside of the lighting fixture 3, the side surface of the lighting fixture 3 is held between the support piece 5 and the wing nut 23. The tip of the support piece 5 gradually narrows in width in the vertical direction and has a sloped part 6 on the bottom surface.
is formed. As shown in FIGS. 5 and 6, the supporting pieces 5 are vertically symmetrical in this embodiment because common parts are used for the supporting pieces 5 attached to the four corners of the lighting fixture 3. That is, the butterfly nut 2
By loosening the support piece 3, the support piece 5 can move forward and backward toward the yoke 4, and when the support piece 5 is moved back as shown in FIG.
Even if the support piece 5 is moved upward between the yokes 4 through the mounting hole 15, the support piece 5 can be easily pushed up without hitting the yoke 4, and after pushing up the lighting fixture 3, it can be moved upward between the yokes 4, as shown in FIGS. 7b and 7c. When the support piece 5 is slid, the inclined part 6 of the support piece 5 comes into sliding contact with the yoke 4, and the lighting fixture 3 moves upward, outward and horizontally over the entire lower edge of the lighting fixture 3. The projecting flange 24 can be brought into close contact with the periphery of the opening of the ceiling panel 9. If the wing nut 23 is tightened in this state, the support piece 5 is fixed to the lighting fixture 3.

On the other hand, the yoke 4 has a vertical piece 26 as shown in FIG.
A combination of a T-shaped leg piece 18 with a horizontal piece 27 opening downward and having a U-shaped cross section fixed to the upper end, and a horizontal piece 17 formed of a channel member opening downward and having a U-shaped cross section. It may also be configured as follows.
Elongated holes 2 are provided in the side surfaces of both longitudinal ends of the horizontal piece 17.
5 is formed, and in this elongated hole 25 there are protrusions 2 protruding from the side surfaces of both ends of the horizontal piece 27 as shown in FIG.
The leg piece 18 and the horizontal piece 17 are connected by fitting the protrusion 28 on one side half of the leg piece 8 . Here, there is some play in the fitting state between the protrusion 28 and the elongated hole 25, and the horizontal piece 25 is designed to be able to slide somewhat in the horizontal direction, absorbing errors in the finish of the ceiling bar 2. I'm starting to be able to do it. In the above example, the protrusion 28 is provided in the leg piece 18 and the elongated hole 25 is provided in the horizontal piece 17, but it goes without saying that the reverse may be used. A split groove 20 that engages with the bulge 12 of the ceiling bar 2 is formed at the lower end of the vertical piece 26, and a hook 29 that supports the bulge 12 from below is formed on one side of the split groove 20. Formed, vertical piece 2
A pressing spring 30 that presses the bulge 12 against the hook 29 is fixed to the inner surface of the 6, and the leg 18 can be attached to the ceiling bar 2 by simply fitting the leg 18 onto the ceiling bar 2 from above. It is something that can be fixed easily. If the yokes 4 having the above structure are used, when the lighting fixtures 3 are attached to the adjacent ceiling panels 9, the yokes 4 can be connected in a straight line one after another as shown in FIG. 11.

As described above, in this invention, the lighting equipment is supported on the ceiling by placing the supporting piece slidably attached to the side of the lighting equipment on the yoke, so when installing the lighting equipment, the supporting piece is moved back. The lighting device is inserted between the yokes, and then the support piece is moved forward and placed on the yoke.This has the advantage of easy installation and good workability. The lighting fixture is made vertically movable by forming a sloped part on the lower surface and slidingly contacting the sloped part with the yoke, so there is an advantage that the installation height of the lighting fixture can be adjusted. Furthermore, in the case where the yoke is composed of a horizontal piece and T-shaped leg pieces attached to both ends of the horizontal piece, a protrusion is provided on one of the horizontal piece and the horizontal piece of the leg piece, and a hole is provided on the other. Since the side half of the horizontal piece and the horizontal piece are connected by engaging the yokes, it is possible to connect them in a straight line when connecting a large number of yokes, and the distance between the yokes can always be kept constant. At the same time, no force is applied to the yoke in an unnecessary direction, and the yoke does not twist as in the conventional case.

[Brief explanation of the drawing]

Fig. 1 is a partial sectional view showing a conventional example, Fig. 2 is a perspective view showing a conventional yoke, Fig. 3 is a partial sectional view of a ceiling having a lighting fixture according to the present invention, and Fig. 4 is a perspective view of the same as above. , Fig. 5 is a perspective view of the main part showing one embodiment of the present invention, Fig. 6 is an enlarged perspective view of the vicinity of the support piece used in the above, and Fig. 7 a, b, and c are respectively the same as the above when the lighting equipment is installed. FIG. 8 is an exploded perspective view of a yoke used in another embodiment of the above, FIG. 9 is a partial sectional view of the yoke of the above, and FIG. 10 is an enlarged side view of essential parts of the yoke of the above. FIG. 11 is a perspective view showing how the yoke is attached to the ceiling bar;
1 is a ceiling slab, 2 is a ceiling bar, 3 is a lighting fixture,
4 is a yoke, 5 is a support piece, 6 is an inclined part, 17 is a horizontal piece, 18 is a leg piece, 26 is a vertical piece, and 27 is a horizontal piece.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A ceiling in which a lighting fixture is installed between any of the ceiling bars that are suspended from a ceiling slab and arranged on the same horizontal plane, and that A pair of yokes that intersect with the ceiling bars are installed spaced apart and horizontally between the ceiling bars to which the fixtures are attached, and a support piece is attached to the lighting fixtures at a position opposite to the yokes that protrudes above the space between the yokes. , the lighting equipment is held between the yokes by placing a support piece protruding from the lighting equipment on the yoke, and the yoke is a horizontal piece with a U-shaped cross section opening downward and a horizontal piece placed horizontally between the ceiling bars. It consists of a pair of leg pieces fixed to both ends in the longitudinal direction, and the leg pieces are a vertical piece whose lower end is fitted to the ceiling bar, and a horizontal piece with a U-shaped cross section that opens downward and is fixed to the upper end of the vertical piece. A ceiling having a lighting fixture formed into a substantially T-shape by a horizontal piece, with both ends of the horizontal piece fitted into side half parts of the horizontal piece, and the horizontal piece and the horizontal piece connected on the same straight line. (2) The support piece can move forward and backward in the horizontal direction, and an inclined part is formed on the bottom surface of the tip of the support piece, so that the lighting fixture is supported in a vertically movable manner with respect to the ceiling bar. A ceiling having a lighting fixture according to item 1.