JPH07141910A - Ceiling luminaire - Google Patents

Abstract

PURPOSE:To provide a ceiling luminaire with the luminaire body to be secured to a ceiling bars and to be easily detachable from the ceiling bars. CONSTITUTION:A luminaire body 2 is placed on a pair of ceiling bars 1. The ceiling bars 1 have joint holes 1e, in which engagement protrusions 3d protruded on the outside face of a reflecting plate 3 are inserted. The reflecting plate 3 is fixed through the lower face of the luminaire body 2 with a fixing screw 4 threaded to the luminaire body 2. In such a state that the reflecting plate 3 is fixed to the luminaire body 2, parts of the ceiling bars 1 between the upper end and the joint hole 1e are held between the luminaire body 2 and the engagement protrusion 3d to fix the luminaire body 2 and the reflecting plate 3 to the ceiling bars 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling lighting fixture fixed to a ceiling bar used for constructing a so-called system ceiling.

[0002]

2. Description of the Related Art Conventionally, there is provided a ceiling lighting fixture in which a fixture main body 2 is placed between the upper ends of a pair of ceiling bars 1 arranged substantially parallel to each other and the fixture main body 2 is fixed to the ceiling bar 1. ing. As shown in FIG. 7, the ceiling bar 1 is formed in a substantially inverted T-shaped cross section in which substantially horizontal mounting pieces 1d are provided on both sides of the lower end of the bar body 1a in the vertical direction, and the upper end of the bar body 1a is formed. Is formed with a substantially horizontal receiving piece 1b, and locking projections 1c are provided on both side surfaces of the upper portion of the bar body 1a below the receiving piece 1b. The following structure has been proposed as a structure for fixing the appliance body 2 to the ceiling bar 1 having such a shape.

That is, as a structure of this kind, as shown in FIG. 7, a support piece 2c protruding from the outer surface of each leg piece 2b of the instrument body 2 having a substantially U-shaped cross section is received by a receiving piece 1b. There is a structure in which the locking screw 10 is placed and the locking screw 10 is inserted through the tip of the hanging piece 2d vertically provided from the tip of the supporting piece 2c, and the tip of the locking screw 10 is locked below the locking projection 1c. It is considered.
In this structure, both leg pieces 2b of the instrument body 2 are attached to both ceiling bars 1
7 is fixed in the left-right direction in FIG. 7, the supporting piece 2c is placed on the receiving piece 1b and the downward movement is prohibited, and the locking screw 10 is locked. The position is fixed in the vertical direction by being locked by the protrusion 1c and being prohibited from moving upward.

As another structure, as shown in FIG. 8, instead of using the locking screw 10, the lower end portion of the leg piece 2b of the instrument body 2 is inclined so that the upper end portion thereof is outwardly separated from the leg piece 2b. The locking claw 2f formed by cutting and raising is formed, and the locking claw 2f is locked to the lower surface of the locking projection 1c to thereby form the instrument main body 2
A configuration that prohibits the upward movement of the car is also considered. As yet another structure, as shown in FIG.
There is also a structure in which a locking spring 11 formed by bending in a letter shape is fixed to the lower end portion of the leg piece 2b of the instrument body 2 by a fixing tool 12 such as a rivet. In this structure, similarly to the structure shown in FIG. 8, by locking the locking spring 11 on the lower surface of the locking projection 1c, the upward movement of the instrument body 2 is prohibited.

[0005]

In each of the above structures,
The supporting piece 2c provided on the instrument body 2 is placed on the receiving piece 1b of the ceiling bar 1, and the locking projection 1c provided on the ceiling bar 1c.
Locking screw 10, locking claw 2f, locking spring 1 to the lower surface of
It is intended to fix the position in the vertical direction by locking 1 or the like. In these structures, the ceiling bar 1
There is a problem in that play cannot be prevented between the tool body 2 and the tool body 2, and the tool body 2 causes rattling with respect to the ceiling bar 1.

Further, in the configuration of FIG. 7, since the locking screw 10 is screwed on the outside of the instrument body 2, work in the ceiling is required when attaching and detaching the instrument body 2 to the ceiling bar 1. However, there is a problem that it takes time to attach and detach. On the other hand, in the structure shown in FIGS. 8 and 9, the work in the ceiling at the time of attachment / detachment is unnecessary, but when the instrument main body 2 is removed from the ceiling bar 1, the locking claws 2f and the locking springs 11 are provided. It is necessary to bend the locking claw 2f and the locking spring 11 using a special tool so that the locking state between the locking protrusion 1c and the locking protrusion 1c is released. There is a problem that the removal work is troublesome.

The present invention has been made in view of the above problems, and provides a ceiling lighting fixture capable of securely fixing the main body of the fixture to the ceiling bar and easily attaching / detaching the main body of the fixture to / from the ceiling bar. It is intended to be provided.

[0008]

According to the present invention, in order to achieve the above object, a pair of ceiling bars, which are arranged substantially horizontally and substantially parallel to each other, and have coupling holes formed in side surfaces facing each other, and both ceiling bars. The instrument main body placed between the upper ends of the ceiling bar and the central portion between the ceiling bars arranged along the inner surface of the space surrounded by the instrument main body and both ceiling bars so that the lower end contacts the lower end of the side surface of the ceiling bar. Is provided with a reflection plate fixed to the instrument body, and a fixture for detachably fixing the reflection plate to the instrument body from below, and a coupling protrusion to be inserted into the coupling hole is provided on the outer surface of the reflection plate. The portion between the upper end of the ceiling bar and the coupling hole is sandwiched between the coupling protrusion and the instrument body.

[0009]

According to the above structure, the engaging projection formed on the outer surface of the reflecting plate is inserted into the engaging hole formed in the ceiling bar,
By sandwiching the part between the upper end of the ceiling bar and the coupling hole between the fixture body mounted on the ceiling bar and the engaging protrusion, the fixture body is firmly fixed to the ceiling bar without rattling. You can do it. Further, since the reflector is removably fixed to the instrument body from below by a fixture, the reflector can be easily removed from the instrument body,
In addition, if the reflector is removed from the main body of the appliance, the reflector, which is one of the members for holding the ceiling bar, comes off, so that the main body of the appliance can be easily removed from the ceiling bar.

[0010]

【Example】

(Embodiment 1) As shown in FIG. 1, the basic configuration relating to the ceiling bar 1 and the fixture body 2 is the same as the conventional configuration shown in FIG. 8, and the configuration in FIG. It has a function. However, in the ceiling bar 1 used in this embodiment, as shown in FIG. 2, coupling holes 1e are formed at important points in the longitudinal direction (direction orthogonal to the paper surface of FIG. 1). The instrument main body 2 has a substantially horizontal top plate 2a, and leg pieces 2b are vertically hung from both side edges of the top plate 2a to form a substantially U-shaped cross section. The lighting device 5 is placed on the top plate 2 a of the fixture body 2. 1 to a plurality of screw holes (not shown) at the center of the top plate 2a in the left-right direction of FIG.
Are formed. Two reflectors 3 are arranged in a space surrounded by both ceiling bars 1 and the instrument body 2. Each reflection plate 3 is provided with an inclined piece 3b extending obliquely downward from one side edge of the horizontal piece 3a, and by stacking the horizontal pieces 3a together, the distance of the inclined piece 3b becomes lower toward the lower part opened downward. The cross-sectional shape is widened to control the distribution of light from a lamp (not shown) attached to the fixture body 2. At the lower end of the inclined piece 3b provided on the reflection plate 3, a folded piece 3c is formed by being folded outward. A fixing metal fitting 6 having a substantially V-shaped cross section is fixed to the outer surface of the inclined piece 3b, and one piece of the fixing metal fitting 6 functions as a coupling projection 3d described later.

To attach the fixture body 2 to the ceiling bar 1,
First, as shown in FIG. 3 (a), the support piece 2c receives the support piece 2c.
It is placed on b and the instrument body 2 is installed between the upper ends of both ceiling bars 1. Next, as shown in (b), (c), and (d) of the same drawing, the respective reflection plates 3 are sequentially inserted into the space surrounded by both ceiling bars 1 and the apparatus main body 2, and provided on the respective reflection plates 3. Each coupling protrusion 3d is inserted into the coupling hole 1e, and the inclined piece 3b of the reflection plate 3 is placed on the mounting piece 1d of the ceiling bar 1.
In this state, as shown in (e) of the figure, the horizontal pieces 3a of the two reflection plates 3 are overlapped with each other, and the fixing screw 4 as a fixture is attached to the both fixation plates 3.
The instrument body 2 through a fixing hole (not shown) formed through a.
When it is screwed into the screw hole of, the portion between the receiving piece 1b and the coupling hole 1e in the ceiling bar 1 becomes as shown in FIG.
It is sandwiched between the support piece 2c of the instrument body 2 and the coupling protrusion 3d of the reflection plate 3. Therefore, the fixture body 2 and the reflection plate 3 are simultaneously fixed to the ceiling bar 1, and the fixture body 2 and the reflection plate 3 are fixed to the ceiling bar 1 without rattling due to the elasticity of the reflection plate 3 and the fixing metal fitting 6. Will be. By inserting the coupling protrusion 3d into the coupling hole 1e, the movement of the instrument body 2 and the reflector 3 in the longitudinal direction of the ceiling bar 1 is prohibited.

In the working process described above, the state shown in FIG. 4 (a) in which the contact piece 3c is placed on the mounting piece 1d is changed to the state shown in FIG. 4 (b) in which the fixing screw 4 is screwed into the instrument body 2. When shifting to the state shown, the lower end of the contact piece 3c and the bar body 1
The distance from a is from the length d ₁ to the length d ₂ (d ₁ > d ₂ ≈0)
Then, the contact piece 3c elastically contacts the bar body 1a. Therefore, the reflector 3 can be attached to the ceiling bar 1 without forming a gap between the lower end of the reflector 3 and the bar body 1a of the ceiling bar 1.

On the other hand, in order to remove the fixture body 2 and the reflection plate 3 from the ceiling bar 1, the fixing screw 4 may be loosened and the reflection plate 3 may be removed. When the reflector 3 is removed from the fixture body 2, one of the two members that sandwich the ceiling bar 1 is removed, and the fixture body 2 can be easily removed from the ceiling bar 1. (Embodiment 2) This embodiment has the same basic structure as that of the embodiment 1, but as shown in FIG.
The difference is that one reflector plate 3 having an integrated shape of one reflector plate 3 is provided, and the ceiling bar 1 is provided with a hanging piece 1d only on one side. Further, when the reflector 3 is attached to the instrument body 2, the lower end of the reflector 3 substantially coincides with the lower end of the ceiling bar 1.

To attach the fixture body 2 and the reflector 3 to the ceiling bar 1, the fixture body 2 is placed on the upper end surfaces of both ceiling bars 1 as shown in FIG. As shown in FIG. 4, each coupling protrusion 3d is inserted into each coupling hole 1e, and the fixing screw 4 is passed through the fixing hole of the reflection plate 3, and the fixing screw 4 is inserted into the screw hole of the instrument body 2 as shown in FIG. It can be screwed.
In the state where the reflector 3 is fixed to the fixture body 2, the contact piece 3 is in close contact with the ceiling bar 1 and the lower end of the reflector 3 and the lower end of the ceiling bar 1 are almost smoothly continuous with each other, so that the appearance is beautiful. You can In addition, in the configuration of the present embodiment, since the inner mounting piece 1d in the first embodiment is omitted, the portion exposed to the ceiling lower surface in the ceiling bar 1 has a half the area of the first embodiment. Since only the lower surface of the piece 1d needs to be decoratively finished, the processing area of the decorative surface can be reduced as compared with the configuration of the first embodiment. Since other configurations are the same as those in the first embodiment, the description thereof will be omitted.

[0015]

As described above, according to the present invention, the engaging projection formed on the outer surface of the reflection plate is inserted into the engaging hole formed in the ceiling bar, and the apparatus main body is placed on the ceiling bar. By sandwiching the portion between the upper end of the ceiling bar and the coupling hole with the engaging projection, the instrument body can be firmly fixed to the ceiling bar without rattling. Also, the reflector is detachably fixed to the fixture body from below with a fixture, so the reflector can be easily removed from the fixture body, and if the reflector is removed from the fixture body, the ceiling bar can be clamped. There is an advantage that the instrument body can be easily removed from the ceiling bar by removing the reflection plate, which is one of the members to be removed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a first embodiment.

FIG. 2 is an exploded perspective view showing a main part of the first embodiment.

FIG. 3 is a process drawing showing the mounting process of the first embodiment.

FIG. 4 is an operation explanatory diagram of a main part of the first embodiment.

FIG. 5 is a cross-sectional view showing a second embodiment.

FIG. 6 is a process drawing showing the mounting process of the second embodiment.

FIG. 7A is a cross-sectional view showing a conventional example. FIG. 7B is a sectional view of a main part of a conventional example.

FIG. 8A is a cross-sectional view showing another conventional example.
FIG. 9B is a sectional view of a main part of another conventional example.

FIG. 9A is a sectional view showing still another conventional example. (B) is a sectional view of a main part of still another conventional example.

[Explanation of symbols]

 1 Ceiling Bar 1e Coupling Hole 2 Instrument Main Body 3 Reflector 3d Coupling Protrusion 4 Fixing Screw

Claims (1)

[Claims] 1. A pair of ceiling bars, which are arranged substantially horizontally and substantially parallel to each other and have coupling holes formed in side surfaces facing each other, an instrument body mounted between upper ends of both ceiling bars, and an instrument body. The reflector main body is arranged along the inner surface of the space surrounded by the ceiling bar so that the lower end is in contact with the lower end of the side surface of the ceiling bar, and the central portion between both ceiling bars is fixed to the fixture main body. And a fixing tool that is detachably fixed from below with respect to the upper surface of the ceiling bar between the connecting projection and the instrument body. A ceiling luminaire, characterized in that a portion between it and a coupling hole is sandwiched.