JPS6348128B2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a ceiling-mounted lighting fixture.

(Prior Art) Conventionally, as ceiling-mounted lighting fixtures, for example, those shown in FIGS. 1 and 2 have been used.

This conventional lighting fixture will be described with reference to FIGS. 1 and 2. FIG.

1 is a hanging ceiling rosette as a ceiling connector, and this hanging ceiling rosette 1 includes:
A pair of arc-shaped hook holes 2 are formed on the lower surface, and a pair of substantially L-shaped locking pieces 3 are protruded from both sides. The hanging ceiling rosette 1 is embedded and fixed in the ceiling 4.

Reference numeral 5 denotes a circular chassis, and this chassis 5 has a circular opening 6 formed in the center thereof, a bent edge piece 7 at the lower part of the outer periphery, and edges on both sides of the opening 6. A plurality of mounting holes 8 are provided in a protruding manner, and a pair of threaded rods 9 are vertically provided at positions perpendicular to the mounting holes 8 on both sides.

Reference numeral 10 denotes a pair of holding frames, and this holding frame 10 has a certain height to bring the chassis 5 into close contact with the ceiling 4, and this holding frame 10 includes:
An insertion hole 11 is formed in the lower surface, and a mounting piece 12 is bent and formed on the outer side of the upper end, and a plurality of mounting holes 13 are formed in this mounting piece 12.
A pair of holding frames 10 are disposed on both sides of the lower surface of the chassis 5, and are fixed with screws 14 through mounting holes 13 and 8.

Reference numeral 15 denotes an annular mounting support, and this mounting support 15 has a locking edge 16 bent at the lower part of the inner periphery, and notches 1 are formed on both sides from the inner periphery.
7 is formed, and branch pieces 18 are provided protruding from both sides, and threaded rods 19 are suspended from the branch pieces 18 on both sides. The threaded rods 19 on both sides are inserted into the insertion holes 11 of the holding frame 10 with coil springs 20 interposed therebetween, and have wing nuts 21 at the lower ends.
are screwed together, and the mounting support 15 is disposed in the opening 6 of the chassis 5. In addition, the locking edge 1
6 is locked to the locking piece 3 of the hanging ceiling rosette 1 as the ceiling connector.

Reference numeral 22 denotes a substantially U-shaped support support. Mounting pieces 23 are bent at the upper portions of both ends of the support support 22, and elongated insertion holes 24 are formed in the mounting pieces 23 at both ends. In addition, support support 2
Lamp socket 2 as a connection tool at the bottom center of 2
A hook ceiling 27 is connected to the lamp socket 25 via a cord 26, and a pair of hook connection pieces 28 are protruded from the upper part of the hook ceiling 27. And support support 2
The screw rods 9 of the chassis 5 are inserted through the insertion holes 24 in the mounting pieces 23 at both ends of the chassis 5 and fixed with wing nuts 29. Further, the hook connection piece 28 of the hook ceiling 27 is inserted into and engaged with the hook ceiling rosette 1 through the hook hole 2.

A holding cylinder 31 is screwed onto the outer periphery of the lamp socket 25, and a substantially truncated conical central cover 33 is attached to a support flange 32 on the outer periphery of the upper end of the holding cylinder 31. A light-transmitting material is mounted on a support part 36 on the outer periphery of the lower end of the center cover 33 and a decorative edge 37 made of synthetic resin with a circular cross section and attached to the outer periphery of the support part 36, which is supported via the support flange 35. The center opening edge of the cover 38 is supported. An incandescent light bulb 39 is attached to the lamp socket 25, and an annular fluorescent lamp 40 is attached to the lower surface of the chassis 5 via a lamp holder (not shown).

Then, the chassis 5 is installed on the ceiling 4.
After positioning the pair of locking pieces 3 of the hanging ceiling rosette 1 in the notch 17 of the mounting support 15,
Rotate the mounting support 15 together with the chassis 5,
The locking piece 3 is engaged with and supported by the locking edge 16. Also, the hook connection piece 28 of the hook ceiling 27 is inserted into the hook hole 2 of the hook ceiling rosette 1 and engaged. Next, the nuts 21 of the holding frame 10 on both sides are tightened against the tension of the spring 20, and the holding frame 10 is tightened.
At the same time, the chassis 5 is raised and brought into close contact with the ceiling 4.

Further, the holding cylinder 31 is screwed onto the lamp socket 25, and the cover 38 is supported together with the central cover 33 with the lamp socket 25 exposed through the through hole 34 of the central cover 33.

(Problems to be Solved by the Invention) As described above, in the conventional device, the mounting support 15 is attached to the holding frame 10 on both sides of the chassis 5 with the screw rod 19 and the nut 21, and
Since the support support 22 is attached at a position perpendicular to the holding frames 10 on both sides using the screw rod 9 and the nut 29, the holding frames 10 on both sides and the support support 22 are arranged in a narrow cross shape on the lower surface of the chassis 5. Therefore, when connecting the hanging ceiling 27 to the hanging ceiling rosette 1 on the ceiling 4,
If the support support 22 is attached, the holding frame 10 will be in the way of the attachment direction of the hook ceiling 27, and it will be necessary to remove the support support 22, which will reduce the workability of attaching the appliance to the ceiling 4. bad.

In addition, since the chassis 5 is closely attached directly to the four sides of the ceiling, screw rods 9 for attaching the support supports 22 are used.
It is impossible to screw them together from the inside to the top side because the tip of the threaded rod 19 protrudes from the top surface of the chassis 5.
The threaded rod 9 has no choice but to be attached to the lower surface of the chassis 5 by welding or the like, which requires time and effort to manage and operate the dimensions during welding, vertical installation, etc., and the number of parts increases, resulting in an overall increase in cost.

The present invention is intended to solve the above-mentioned problems, and aims to improve installation workability, reduce the number of parts, and provide a product at a low cost.

[Structure of the invention]

(Means for Solving the Problems) The present invention comprises: a chassis having an opening in the center; a holding frame having a constant height attached to the lower surface of the chassis on both sides of the opening; An annular mounting support that is installed with a nut by inserting screw rods disposed in the opening and hanging vertically on both sides through the holding frames at both ends, and is locked to a ceiling connector installed on the ceiling; A cover that covers the lower surface side and has a through hole in the center, and a support support that is provided on the lower surface side of the chassis and has a connector that is exposed from the through hole of the cover and supports the cover, and the support support includes: Both ends are removably attached to the lower surfaces of the holding frames on both sides using screw rods and nuts of the mounting support.

(Function) In the present invention, the chassis is attached to the mounting support on the ceiling side using screw rods and nuts on the holding frames on both sides of the chassis, and the cover is supported on the lower surface of the holding frames on both sides of the chassis. Both ends of the support support are attached using the same threaded rods and nuts described above. This simplifies the interior and does not necessarily require removing the support when connecting the power supply, making the power connection work easier.

(Example) An example of the present invention will be described below with reference to FIGS. 3 and 4.

Note that the same parts as in FIGS. 1 and 2 are designated by the same reference numerals, and their explanation will be omitted.

In the conventional instrument, the supporting support 22
Although a screw rod 9 and a nut 29 were provided for mounting, the screw rod 9 and nut 29 are not provided. Further, the support support 22 is formed lower by a height corresponding to the holding frames 10 on both sides attached to the chassis 5. Then, the mounting pieces 23 at both ends of the support support 22 are brought into contact with the lower surfaces of the holding frames 10 on both sides, and the mounting pieces 23 are inserted into the insertion holes 24 of the mounting pieces 23.
Insert the screw rod 19 of 5 and screw the nut 21,
Support supports 22 are detachably attached to the lower surfaces of the holding frame 10 on both sides.

Further, a plurality of substantially U-shaped locking portions 41 are cut and raised at the outer end of the lower surface of the holding frame 10, and a plurality of locking protrusions are formed at the outer ends of the mounting pieces 23 on both sides of the support support 22. A piece 42 is formed, and each locking protrusion 42 is inserted into each locking portion 41 to temporarily support the support support 22.

Further, an annular recess 43 is formed on the lower surface of the cover 38, and the decorative frame 3 of the central cover 33 is inserted into the recess 43.
7 and protects the decorative frame 37.

The other configurations are the same as those shown in FIGS. 1 and 2.

In this way, the mounting support 15 on the ceiling 4 side
On the other hand, the chassis 5 is attached to the holding frame 10 on both sides thereof by screw rods 19 and nuts 21,
Further, support supports 2 supporting the covers 33 and 38 are provided on the lower surface of the holding frame 10 on both sides of the chassis 5.
2 with the same threaded rod 19 and nut 21 mentioned above.
By attaching the support 22 according to the method, the internal structure is simplified and it is not necessary to remove the support 22 when connecting the power supply, which simplifies the work of connecting the power supply.

〔Effect of the invention〕

According to the present invention, the chassis is attached to the mounting support on the ceiling side by screws and nuts on the holding frames on both sides thereof, and the support support supporting the cover is attached to the lower surface of the holding frames on both sides of the chassis. By attaching both ends of the power supply with the same screws and nuts described above, the internal structure is simplified and there is no need to remove the support when connecting the power supply, making the work of connecting the power supply easy. Accordingly, the support can be easily removed and work efficiency can be improved.

In addition, it is possible to eliminate the conventional screw rods and nuts used for mounting support supports, and the work of installing screw rods can also be omitted.Furthermore, the height of the support supports can be adjusted by using the fixed height of the holding frame to close the ceiling. Since the height of the holding frame is lowered, the number of parts and materials can be reduced, making it possible to reduce the cost.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a conventional lighting fixture, Fig. 2 is an exploded perspective view of a part thereof, Fig. 3 is a sectional view showing an embodiment of the lighting fixture of the present invention, and Fig. 4 is a sectional view of a part thereof. It is an exploded perspective view. 1... Ceiling connector, 4... Ceiling, 5... Chassis, 6... Opening, 10... Holding frame, 15... Mounting support, 19... Screw rod, 21... Nut,
22...Support support, 25...Connection tool, 33,
38...Cover, 34...Through hole.

Claims (1)

[Scope of Claims] 1. A chassis having an opening in the center; a holding frame having a constant height attached to the lower surface of the chassis on both sides of the opening; a ring-shaped mounting support that is attached with a nut by inserting screw rods marked on the top of the chassis through the holding frames on both sides and is locked to a ceiling connector installed on the ceiling; a cover having a through hole; and a support support provided on the underside of the chassis and having a connector that is exposed through the through hole of the cover and supports the cover; A lighting device characterized in that it is detachably attached to the lower surface of the holding frame using the screw rod and nut of the mounting support.