JP2554113Y2 - lighting equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting apparatus in which a lamp is connected to a lower end of a hanging pipe hanging from a ceiling surface.

[0002]

2. Description of the Related Art Conventionally, as this kind of lighting equipment,
For example, it is known that a lamp is attached to a lower end portion of a hanging pipe hanging from a ceiling surface and the periphery of the lamp is covered with a spherical glove. In this lighting fixture, in order to couple the lamp 4 to the suspension pipe 1, an attachment screw portion 31 having a thread groove as shown in FIG. 5 is provided on the inner peripheral surface of the lower end of the suspension pipe 1, A screw tube 32 protruding from the lamp 4 is screwed into the mounting screw portion 31. A power supply line 15 for supplying power to the lamp 4 is inserted into the suspension pipe 1, and the lower end of the power supply line 15 is connected to the lamp socket 22. By the way, a glove (not shown) provided on the lamp 4 is held by the lamp 4 by placing an opening edge on a receiving metal member 3 provided on the lamp 4. Further, if the mounting portion between the receiving fitting 3 and the glove is exposed to the outside, the appearance is impaired. Therefore, the lamp-side cover 8 is provided so as to cover the receiving fitting 3. here,
The lamp-side cover 8 is fixed to the hanging pipe 1 and the lamp 4 by being sandwiched between the lower end of the hanging pipe 1 and the receiving fitting 3.

On the other hand, as shown in FIG.
The ceiling-side cover 7 is covered with a ceiling-side cover 7 so that the mounting portion to the ceiling is not exposed to the outside, and the ceiling-side cover 7 is fixed to the ceiling surface using a pair of nuts 16. .

[0004]

According to the above construction, if the glove is to be removed at the time of lamp replacement or the like, it is necessary to rotate the suspension pipe 1 with respect to the lamp 4. In addition, the upper end of the suspension pipe 1 needs to be rotatably attached to the ceiling surface. If such a structure is adopted, there is a problem that the mounting structure on the ceiling side of the suspension pipe 1 becomes complicated. In addition, since the lamp-side cover 8 must be removed to remove the glove, the lamp 4
Is separated from the suspending pipe 1, and a large tension corresponding to the weight of the lamp 4 acts on the power supply line 15, thereby causing a problem that the wire is easily disconnected. Further, the hanging pipe 1 is connected to the lamp 4
Even if the glove is separated from the glove, the amount of upward movement of the lamp-side cover 8 is regulated by the length of the power line 15 that can be pulled out. There is also a problem that the work of attaching and detaching to and from the receiving bracket 3 takes time.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and has a structure which does not require the hanging pipe to be rotated with respect to the lamp when the lamp is attached to or detached from the hanging pipe. A large amount of movement of the lamp-side cover that covers the metal fittings makes it easier to attach and detach the lamps to the receiving fittings, and furthermore, the ceiling-side cover can be fixed in one place to improve the appearance It is an object of the present invention to provide an illuminated lighting device.

[0006]

According to the present invention, in order to achieve the above object, in a lighting fixture in which a lamp is connected to a lower end of a hanging pipe hanging down from a ceiling surface, the hanging pipe is vertically Pie with both ends formed smaller in diameter than the middle
To the small diameter part of the upper and lower ends of the pipe body and the pipe body.
And the outer diameter is larger than the middle part of the pipe body.
A pair of screw cylinders having a thread groove on the outer peripheral surface
At the upper end of the loop body, it is
By caulking the upper end of the pipe body,
A mounting bracket fixed to the pipe body and fixed to the ceiling surface, at the lower end of the pipe body, on the tip side of the screw cylinder
By crimping the lower end of the pipe body
It consists of a metal fitting that is fixed to the pipe main body together with the metal pipe and attaches a lamp .
A pair of nuts screwed into the screw groove is provided between the nuts,
A ceiling-side cover that covers a mounting portion of the mounting bracket to the ceiling surface is sandwiched between one nut and the mounting bracket, and a lamp side that covers a mounting portion of the receiving bracket to the lamp between the other nut and the mounting bracket. The cover is pinched.

[0007]

According to the above construction, the receiving fitting for attaching the lamp is fixed to the lower end of the hanging pipe, and the fitting between the nut screwed to the screw tube provided at the lower end of the hanging pipe and the receiving fitting is provided. Since the lamp-side cover is sandwiched between the lamps, when removing the lamp from the hanging pipe, the nut may be loosened without rotating the hanging pipe. In addition, if the nut is removed from the screw cylinder, the lamp-side cover can be freely moved within the length of the suspension pipe, so that the connecting portion between the receiving bracket and the lamp can be sufficiently exposed, The work of attaching and detaching the lamp can be easily performed. Further, the ceiling-side cover is sandwiched between a nut screwed into a screw cylinder provided at the upper end of the suspension pipe in the same manner as the lamp-side cover, and a mounting bracket coupled to the upper end of the suspension pipe. Therefore, the ceiling-side cover can be fixed at one place, and the appearance is improved as compared with the conventional example in which the ceiling-side cover is fixed at two places. Also, the screw cylinders provided at the upper and lower ends of the suspension pipe have a larger diameter than the middle part of the suspension pipe.
Yes, the nut is held between the two screw cylinders.
When the nut to be screwed into the cylinder is loosened, the nut does not fall out of the suspension pipe. Moreover, the suspension pad
Ip fits the screw cylinder to both ends of the pipe body and
Attach the mounting bracket or the receiving bracket and fix the end of the pipe body.
Because it is formed by caulking, it is relatively simple
Easy to manufacture by assembling the components of the configuration
Can be.

[0008]

As shown in FIG. 3, a mounting pipe 2 is fixed to an upper end of a hanging pipe 1 and a receiving pipe 3 is fixed to a lower end thereof. The mounting bracket 2 has mounting holes 2a at both ends,
As shown in FIG. 1, a fixing screw 1 projecting below a ceiling plate 11 (see FIG. 2) fixed to the ceiling surface.
2 is inserted into the mounting hole 2 a, and the fixing nut 13 is screwed into the fixing screw 12, whereby the fixing nut 12 is sandwiched between the sealing plate 11 and the fixing nut 13. A lamp socket 22 for holding a lamp 21 is provided in the receiving bracket 3.
Are mounted on both ends of the bracket 3, and the peripheral edge of the opening of the globe 23 surrounding the lamp 21 is placed. Glove 2
For example, a notch through which the receiving fitting 3 can be inserted is formed in the opening periphery of the opening 3, and the glove 23 is relatively positioned with respect to the receiving fitting 3 so that the notch matches the receiving fitting 3. , The glove 23 and the metal fitting 3 can be removed. A power supply line (not shown) connected to the lamp socket 22 is inserted through the suspension pipe 1. Here, lamp socket 2
2 is fixed to the suspension pipe 1 via the receiving fitting 3, so that tension due to the load of the lamp 4 does not act on the power supply line, and disconnection of the power supply line can be prevented.

By the way, as shown in FIG. 4, screw cylinders 14 are mounted on both upper and lower ends of the suspension pipe 1. The screw cylinder 14 is formed to have an outer diameter larger than the outer diameter of the middle part of the suspension pipe 1, and the outer peripheral surface of the screw cylinder 14 is formed with a mounting screw portion 5 having a thread groove. That is, both ends of the pipe main body 1a in the suspension pipe 1 are formed to have smaller diameters than the intermediate part. Each screw tube 14 is fitted to this small diameter part, and a mounting bracket is attached to each end of the pipe main body 1a. After the fitting of the pipe body 1 and the fitting 3, each end of the pipe body 1 a is caulked, so that the pipe body 1
The mounting member 2, the receiving member 3, and the screw cylinder 14 are fixed to the position a. The pipe body 1a is also provided with a ceiling-side cover 7 that can cover the mounting bracket 2, a lamp-side cover 8 that can cover the receiving bracket 3, and a pair of nuts 6 screwed to the respective mounting screw portions 5. Keep it. Ceiling side cover 7
Is mounted between one nut 6 and the mounting bracket 2, and the lamp-side cover 8 is mounted between the other nut 6 and the receiving bracket 3.

However, if the nut 6 is screwed into the mounting screw 5 on the upper end side of the suspension pipe 1, the ceiling cover 7 can be sandwiched between the mounting bracket 2 and the nut 6, and If the nut 6 is screwed into the mounting screw portion 5 on the lower end side of the lower pipe 1, the lamp-side cover 8 can be sandwiched between the receiving bracket 3 and the nut 6. When the nuts 6 are removed from the mounting screw portions 5, the ceiling-side cover 7 and the lamp-side cover 8 can move within the length of the suspension pipe 1.
Therefore, when replacing the lamp 21, the glove 23 is removed by loosening the nut 6 screwed to the mounting screw portion 5 on the lower end side of the suspension pipe 1. The coupling portion can be largely exposed, and the work of attaching and detaching the glove 23 can be easily performed. Further, since the ceiling-side cover 7 is fixed by the nuts 6 in the same manner as the lamp-side cover 8, the appearance is improved as compared with the conventional case where two nuts are used. Furthermore, since the hanging pipe 1 has the same configuration at both upper and lower ends except that the mounting bracket 2 is fixed to the upper end and the receiving bracket 3 is fixed to the lower end, the processing method is common. It can be processed relatively easily. Further, since the mounting screw portion 5 has a larger diameter than the intermediate portion of the suspension pipe 1, when the nut 6 is removed from the mounting screw portion 5 in order to remove the ceiling-side cover 7 and the lamp-side cover 8, 6
Can be prevented from dropping from the suspension pipe 1 and the nut 6 can be prevented from being lost.

[0011]

According to the present invention, as described above, the receiving fitting for attaching the lamp is fixed to the lower end of the hanging pipe, and the nut and the receiving screw which are screwed to the screw cylinder provided at the lower end of the hanging pipe are provided. Since the lamp-side cover is sandwiched between the metal fittings, when removing the lamp from the hanging pipe, the nut may be loosened without rotating the hanging pipe. In addition, if the nut is removed from the screw cylinder, the lamp-side cover can be freely moved within the length of the suspension pipe, so that the connecting portion between the receiving bracket and the lamp can be sufficiently exposed, it is intended to achieve the trough cormorants effect which can do the work of detaching the lamp easily. In addition, the ceiling side cover is similar to the lamp side cover, and the upper end of the hanging pipe is
The ceiling cover can be fixed at one place because it is sandwiched between the nut screwed into the screw cylinder provided in the above and the mounting bracket connected to the upper end of the hanging pipe.
There is an advantage that the appearance is improved as compared with the conventional example in which it is fixed in place. Also, setting the upper and lower ends of the hanging down pipe
The girder thread is larger in diameter than the middle part of the suspension pipe ,
Since the nut is held between the screw cylinders , the nuts do not fall out of the suspension pipe when the nuts that are screwed into the screw cylinders are loosened, thus preventing the nuts from being lost.
There is an advantage in that that. And the hanging pipe is a pipe
Attach the screw cylinder to both ends of the body and attach the mounting bracket or
To fit the receiving bracket and crimp the end of the pipe body
Are relatively easy to assemble.
It can be easily manufactured by standing up
There is also an effect.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing an embodiment.

FIG. 2 is a plan view of a main part showing an embodiment.

FIG. 3 is a perspective view of a main part showing an embodiment.

FIG. 4 is a sectional view of a main part showing an embodiment.

FIG. 5 is a partially cutaway side view of a main part showing a conventional example.

FIG. 6 is a side view of a main part showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hanging pipe 2 Mounting bracket 3 Receiving bracket 4 Lamp 5 Mounting screw part 6 Nut 7 Ceiling side cover 8 Lamp side cover

Continuation of the front page (56) References JP-A-2-94320 (JP, A) JP-A 52-148486 (JP, U) JP-A 59-20510 (JP, U) JP-A 61-117403 (JP , U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A lighting device in which a lamp is connected to a lower end of a hanging pipe hanging down from a ceiling surface, wherein the hanging pipe is formed such that both upper and lower ends have a smaller diameter than an intermediate part.
It is fitted to the main body and the small-diameter portions at both upper and lower ends of the pipe body.
And the outer diameter is larger than the middle part of the pipe body.
A pair of screw cylinders with thread grooves formed on the outer peripheral surface
At the upper end of the body, it is
By caulking the upper end of the Ip body together with the screw cylinder
Mounting bracket fixed to the pipe body and fixed to the ceiling surface
And at the lower end of the pipe
By screwing the lower end of the pipe body
It consists of a bracket that is fixed to the pipe body together with the tube and that attaches a lamp , between the upper and lower screw cylinders of the suspension pipe.
Is provided with a pair of nuts to be screwed into the screw grooves.
The ceiling side cover that covers the mounting portion of the mounting bracket to the ceiling surface is sandwiched between the other nut and the mounting bracket, and the lamp side that covers the mounting portion of the receiving bracket to the lamp between the other nut and the receiving bracket. Lighting fixture with cover sandwiched.