JP2535551Y2 - lighting equipment - Google Patents

Description

[Detailed description of the invention] (1) Industrial application field This invention relates to an improvement of a lighting fixture provided on a pair of T-bars suspended from a ceiling surface.

(2) Conventional technology In recent years, office lighting in buildings and factories has been systematically arranged with lighting equipment, air conditioners, and other equipment on T-bars arranged in rows on the ceiling surface, to rationalize the indoor space. It is designed to be creative.

FIG. 3 is a perspective view showing an installation structure of a lighting device arranged on a T-bar of this type. In the drawing, reference numerals 1 and 2 denote a pair of hanging devices arranged in a row on a ceiling surface. The T-bar 3 is a lighting device disposed on the pair of T-bars 1 and 2, and is provided on a lower surface side of the device main body 5 and the device main body fixed on the T-bar by a support piece 4 described later. It has a reflector 6, a light control member 7 such as a louver, and the like.

The instrument main body 5 is disposed in parallel between the pair of T-bars 1 and 2, and has a pair of instrument frames 8 of a lateral member formed in a U-shaped cross section and two end portions of the pair of instrument frames 8. It has a socket mounting plate 10 on which a plurality of sets of lamp sockets 9 are mounted to which a straight tube lamp (not shown) is mounted, and a ballast box 11 which is mounted on the central portion of both fixture frames 8, 8. ing.

The reflection plate 6 is fixed to the lower surface of the instrument body 5 by screwing with a decorative screw or the like, and the light control member 7 is mounted and fixed on the lower end edges of the T bars 1 and 2.

The support piece 4 is a steel plate part bent in a U-shape or a box shape which is attached to a plurality of locations facing the side surfaces of the two instrument frames 8. As shown in FIG. 4 and FIG. An elongate hole 13 is formed in the mounting wall 12 for adjusting the mounting height, and is engaged with a locking recess 14 which is locked along the upper edge of the T-bars 1 and 2 on the lower side of both side surfaces thereof. Rear mounting wall 12 of the stopped part
Screw holes 1 for fixing to T-bars 1 and 2 with screws 15
And 6.

(3) Problems to be Solved by the Invention In the lighting fixture having such a structure, the fixture main body is arranged on both T-bars, the locking recess of the support piece is locked on the upper edge of the T-bar, and the T-bar 1 is screwed. , 2 are mounted and fixed. Even after the assembly, the upward movement of the lighting equipment due to vibration, impact, etc. is applied, the upward movement of the lighting equipment is restricted, and the T-bars 1, 2 The feature is that it can be reliably prevented from breaking away from the vehicle.

However, this screwing work requires the T-bar
Not only must be done after placing on 1, 2
Since there are many screwing points and the work is performed on a high ceiling surface, there is a problem that the work is complicated and the efficiency is impaired.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a lighting fixture which can easily attach a fixture main body to a T-bar with a simple configuration and can effectively improve workability.

(4) Means for Solving the Problems Accordingly, in order to achieve the above object, the present invention locks the lower end opening recess of the support piece attached to the instrument body to the upper edge of the pair of T-bars. In the lighting fixture to be fixed, a tongue piece formed by a plurality of cut grooves is formed at a lower portion of a mounting wall of the support piece to the fixture body, and a lower end of the tongue piece is folded back to a locking concave side. The hook portion is formed below the upper edge of the T-bar so that the upward movement of the instrument body is restricted.

(5) Action When the support piece of the instrument body is placed on the upper edge of the T-bar,
The hook portion is pushed toward the instrument body by the upper edge of the T-bar and is elastically deformed. When the hook portion passes through the upper edge of the T-bar, the hook portion returns to its original shape and is located below the upper edge so that the T of the instrument body is located below the upper edge. Complete support for the bar. In this state, even if an upward force acts on the instrument body, the tip of the hooking portion is caught on the lower surface of the upper edge of the T-bar, so that the instrument body is not detached from the T-bar. It can be mounted by one-touch operation of simply placing it on the bar.

(6) Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

1 and 2 are a perspective view and a side view of a support piece 17 of a lighting fixture 3 mounted and fixed on a T-bar according to the present invention, and correspond to FIGS. 4 and 5 of the related art. It is a drawing.

This support piece 17 is also a bent part obtained by bending an iron plate into a box shape, and has a locking recess 18 which is locked along the upper edges of the T-bars 1 and 2 on both sides of the lower end as in the conventional case. .

Here, the point different from the conventional one is that the lower end side of the mounting wall 12 for fixing the support piece 17 to the T-bars 1 and 2 exceeds the locking recess 18 and the tongue piece 20 which is fragmented by a plurality of cut grooves 19. , 21, 22 are extended, of which the lower end of the tongue piece 21 in the center is
A hook 21a is formed by turning inward toward the 18th side. Further, the lower end side of the front side wall surface facing the mounting wall 12 is bent outward to form flared tongue pieces 23 and 24.

The lighting fixture 3 to which the support piece 17 having such a structure is attached is the same as the conventional one.
Is placed and fixed downward by pulling it down.

That is, when the support piece 17 is placed on the upper edges of the T bars 1 and 2, the hook 21a of the tongue piece 21 is pushed toward the instrument body by the upper edges of the T bars 1 and 2 and is elastically deformed. But the hook 21a
Passes through the upper edge, and when the locking concave portion 18 is placed on the upper edge of the T-bars 1 and 2, it is restored to its original shape and is locked to the vertical wall below the upper edge of the T-bars 1 and 2. . In this state, the upper end of the hooking portion 21a is positioned so as to be slightly separated from the lower surface of the upper edge of the T-bars 1 and 2, but may be abutted and locked on the lower surface.

The lower end of the opening of the locking recess 18 in the front wall on the opposite side of the mounting wall 12 is bent outward to form flared tongues 23 and 24. When mounting on top,
There is a guide function of smoothly abutting the upper edges of the T-bars 1 and 2 and expanding and mounting, so that the mounting of the device is performed with one touch.

(7) Effects of the Invention As described above, according to the present invention, the tongue piece having the hook portion is formed into a small piece. Deforms easily when passing through the edge portion and restores after passing. Therefore, simply by placing the instrument body on the T-bar, it is possible to securely place the instrument body without lowering the instrument body with a particularly large force, and it is possible to place the instrument body by one-touch operation, thereby significantly improving workability. Can be improved.

In addition, since the hook of the tongue piece is locked and positioned below the upper edge of the T-bar after the device main body is placed on the T-bar, a force acting to move the device main body upward is exerted. Also, the hook of the tongue piece is hooked on the lower surface of the upper edge of the T-bar, so that the device body can be reliably prevented from coming off from the T-bar.

Further, since the tongue piece having the hook portion is formed integrally with the mounting wall of the support piece, the manufacture of the support piece is easy, and the tongue piece is slightly different from the conventional example shown in FIG. 4 and FIG. Although the processing cost is increased, the effect is obtained that the overall cost including the assembly cost is rather reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a support piece of a lighting fixture component according to the present invention, FIG. 2 is a side view of FIG. 1, FIG. 3 is a perspective view of an arrangement of the lighting fixture on a T-bar, FIG. FIG. 5 is a perspective view of a support piece of a conventional lighting fixture component, and FIG. 5 is a side view of the component of FIG. 1,2 ... T-bar, 3 ... Lighting equipment, 5 ... Equipment body, 17
...... Support piece, 18 ... recess, 19 ... kerf, 21 ... tongue piece, 21
a ... The hook.

Claims (1)

(57) [Scope of request for utility model registration] 1. A lighting fixture wherein a lower end opening recess of a support piece attached to a fixture main body is locked and fixed to upper end edges of a pair of T-bars, wherein the support piece is attached to the fixture main body. A plurality of cut grooves formed in the lower part of the tongue, and the lower end of the tongue is folded back toward the locking recess to form a hook, and the hook is formed below the upper edge of the T-bar. A lighting device characterized in that it is positioned such that upward movement of the device main body is restricted.