JPH04308603A - Lighting equipment mounting device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

[Object of the invention]

0002

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture mounting device, and more particularly to a device for mounting facility fixtures that are directly attached to or embedded in the ceiling of an office or the like of a building.

0003

2. Description of the Related Art In general, facility ceilings are constructed by attaching a plurality of support beams 3, called C-shaped channels, to bolts 1 suspended from a concrete ceiling using adjustment fixtures 2, for example, as shown in FIG. A plurality of panel mounting bars 5 called M bars are attached to the bottom surface of the support bar 3 using clips 4 perpendicularly to each of the support bars 3, a gypsum board 6 is attached to the mounting bars 5, and a decorative panel is installed on the bottom surface of the boat 6. A structure in which a panel 7 is attached is adopted. In order to install lighting fixtures on the ceiling, especially for recessed ceiling lighting fixtures,
The height of the appliance main body 8 is higher than the space from the appliance mounting surface of the decorative panel 7 to the lower surface of the support bar 3, and the support bar 3 is cut as shown in FIG. A bolt 9 suspended from the ceiling is inserted into the device body 8, and a nut 10 is screwed onto the bolt 9.
The device main body 8 is supported by.

0004

[Problems to be Solved by the Invention] In the lighting fixture mounting device having the conventional structure described above, since the fixture body 8 is supported by bolts 9 suspended from the ceiling, there is no need to drive the bolts 9 into the concrete ceiling. It takes a lot of effort to drive the bolts 9 into the concrete ceiling, and it is also difficult to measure the bolts 9 according to the mounting position of the fixture body 8 and the ceiling. This is difficult because there is a gap between them, and furthermore, in order to cut the support crosspiece 3, it is necessary to reinforce the support crosspiece 3 with a reinforcing member 11.
There are many construction steps, an increase in materials, and complicated piping such as ducts for air conditioners are installed in the ceiling.There are restrictions on the installation position of lighting equipment, and in order to support the equipment body 8, The operation of threading and tightening the nut 10 onto the bolt 9 has the problem of requiring a long installation time and poor workability.

The present invention has been made in view of the above-mentioned problems, and provides a lighting fixture mounting device in which the fixture body can be easily supported on a mounting bar placed on a support bar, thereby improving the installation workability of the fixture. It is something to do.

[Configuration of the invention]

[0007]

[Means for Solving the Problems] The lighting equipment mounting device of the present invention includes an elongated support bar disposed along the longitudinal direction of the ceiling, and a support bar placed on the top surface of the support bar with an open bottom surface. and an elongated mounting frame having a locking edge formed by bending the lower edges of both sides inward, and a width narrower than the interval between the locking edges of the mounting frame and a distance between the locking edges. A locking piece having a length wider than the distance between the locking pieces, a bolt fixed to the upper part of the locking piece and having a mounting nut screwed to the lower part, and a bolt positioned below the locking piece and attached to the upper surface of the bolt. and a clamping piece having a receiving surface portion projecting upward and engaged with both lower edges of the locking edges of the mounting bar, and inserted between the locking edges of the mounting bar so that the width direction is aligned. By rotating the bolt, both ends are locked to the locking edge, and the locking edge is clamped by the locking piece and the clamping piece, and the bolt fixed to the locking piece is fixed to the support. The device is inserted into a device body disposed below the crosspiece, and the device body is supported by the mounting nut screwed onto the bolt.

[0008]

[Operation] The lighting equipment mounting device of the present invention has a mounting bar placed on the upper surface of a support bar disposed along the longitudinal direction of the ceiling, and a distance between the locking pieces between the locking edges of the mounting bar. When inserted with a narrower width, the receiving surface portion of the clamping piece is disposed between the locking edges, and the locking piece is disposed above the locking edges. When the bolt is rotated in this state, both ends of the locking piece are locked between the locking edges, the receiving surface of the locking piece is engaged with the lower edge of the locking edge, and this locking edge is connected to the locking edge. The bolt is fixed by being clamped with the locking piece, and the bolt fixed to the locking piece is inserted into the instrument body arranged on the underside of the support bar, and the instrument body is screwed onto the bolt. By screwing and tightening the attached mounting nuts, the appliance body is supported on the ceiling.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of an embodiment of the present invention will be described with reference to FIG. 1 for a recessed lighting fixture.

Reference numeral 20 denotes an instrument main body formed in the shape of a casing with an open bottom surface, and a locking edge 22 bent outward is formed at the lower edge of a circumferential edge 21 of the instrument main body 20. Further, 24 is a main reflecting plate, and the peripheral edge of this main reflecting plate 24 forms an inclined reflecting surface portion 25 which is inclined downward in an expanded shape, and the outer edge of the lower end of this inclined reflecting surface portion 25 is folded horizontally. An edge surface portion 26 is formed by bending, and a vertical contact portion 27 is formed by bending the outside of this edge surface portion 26 vertically further upward.

Further, an electronic ballast 28 formed of an invar circuit or the like is attached to the lower surface of the main body 20, and this ballast 28 is attached to the edge portion 26 of the main reflecting plate 24 and the back surface of the inclined reflecting surface 25. It is disposed in a space 29 formed on the side.

Further, lamp sockets (not shown) are respectively fitted and fixed into a plurality of socket mounting holes opened in one of the inclined reflection surface portions 25 of the main reflection plate 24, and single-cap type lamp sockets are fitted into each of the lamp sockets. A U-shaped fluorescent lamp 32 is opposed to the reflective surface of the main reflector 24.

Further, a mounting hole 31 is formed approximately at the center of the reflecting surfaces of the instrument body 20 and the main reflecting plate 24, and this mounting hole 31 has a substantially V-shape that is removably attached to the main reflecting plate 24. It is covered with an auxiliary reflecting plate 33. A power cord insertion hole (not shown) is opened in the instrument main body 20 and the main reflecting plate 24 at a position covered by the auxiliary reflecting plate 33.

Next, the facility ceiling will be explained.

Reference numeral 35 denotes a plurality of elongated support beams called C channels arranged in parallel at intervals within the ceiling, and elongated mounting beams are placed and fixed on the top surface of the plurality of support beams. 36 is a locking edge 37, 3 whose lower surface is open and the lower edges of both sides are bent inward and upward in an inclined shape.
7. The support beam 35 is connected to the adjustment fixture 4 by a bolt 38 that is hung by driving into the concrete ceiling and a nut 39 that is screwed onto the bolt 38.
Supported through 0. Further, a ceiling board 42 such as a plaster board or a decorative panel is attached to a long panel mounting bar 41 attached to the lower surface of the support bar 35 in a direction perpendicular to the support bar 35. And this ceiling board 4
An instrument fitting hole 43 is opened at 2.

Next, a mounting device for mounting the instrument body 20 will be explained with reference to FIGS. 1 to 5.

Reference numeral 45 denotes the locking edges 37, 3 of the mounting bar 36.
The locking piece 45 has a width L2 narrower than the gap L1 between the locking edges 37, and a length L3 wider than the gap between the locking edges 37, 37. It is formed into a roughly elliptical plate shape. The upper part of a bolt 46 is fixed to this locking piece 45, and a mounting nut 47 made of a wing nut and a mounting nut 48 made of a hexagonal nut are screwed to the lower part of this bolt 46. Further, this locking piece 45 has an engaging protrusion 49 that is engaged with the locking edge 37 so that both ends are not rotated beyond the state in which they are locked between the tips of the locking edges 37. It is set up.

Reference numeral 50 denotes a clamping piece located below the locking piece 45 and fixed to the bolt 46, and this clamping piece 50 is longer than the width L4 of the mounting bar 36. 37, 37, the width direction of the upper surface has a receiving surface portion 50a curved upward in an arc shape, and the receiving surface portion 50a is fixed to the locking edges 37, 37 of the mounting crosspiece 36. Piece 4
5 is engaged with both sides of the locking edges 37, 37 when the locking piece 45 is in the insertion direction, and when the locking piece 45 is locked at both ends with the locking edges 37, 37, the lower edge of the locking edges 37, 37 It is designed to engage with. The distance H1 between the locking piece 45 and the clamping piece 50 is smaller than the distance H2 between the locking pieces 37, 37.

The locking edge 37 of the mounting bar 36,
By inserting and rotating the width direction between 37 and 37, both ends are locked between the tips of the locking edges 37, 37, and the locking pieces 37, 37 and the clamping piece 50 are engaged. Tonge 37
, 37, and insert the bolt 46 fixed to the locking pieces 37, 37 into the mounting hole 31 of the instrument main body 20 disposed below the support beam 35 to attach the instrument main body 20. the mounting nuts 47 and 48 screwed onto the bolt 46;
It is now supported by

Next, the operation of this embodiment will be explained.

By attaching the stabilizer 28 to the main reflector 24 on the instrument body 20, the stabilizer 28 is attached to the edge portion 2.
6 and a space 29 formed on the back side of the inclined reflective surface section 25.
Therefore, the thickness and height of the reflector 20 are limited only by the thickness dimensions of the lamp socket and the lamp, and the ballast 20 is
There is no need to stack the thickness dimension of It is reinforced at the contact portion 27.

Then, the mounting bar 36 is mounted and fixed on the upper surface of a plurality of support bars 35 arranged in parallel at intervals in the ceiling, and a locking piece is inserted between the locking edges 37 of the mounting bar 36. 4
When the locking pieces 45 are inserted with a width narrower than the interval 5,
The clamping piece 50 is arranged along the lower surface of the locking edges 37, 37, and the locking piece 45 is arranged above the tips of the locking edges 37, 37. When one nut 47 is rotated, the other mounting nut 4
8 are screwed together, the bolt 46 is rotated, the locking piece 45 is also rotated, both ends are locked between the locking edges 37, and the locking protrusion 49 is locked with the locking edge 37. aligned and positioned. In this state, the clamping pieces 50 are attached to the locking edges 37, 37.
The receiving surface portion 50a on the upper surface is engaged with the lower edge of the upper surface by face-to-face contact, and this locking edge 37 is clamped by the locking piece 45 and the clamping piece 50 to fix the bolt 46, and this locking piece 45 is inserted into the mounting hole 31 of the instrument main body 20 and the mounting hole of the reflector 24 disposed below the support crosspiece 35, and the instrument main body 20 is screwed onto the bolt 46 using a mounting nut. By screwing and tightening 47 and 48, the instrument body 2
0 is supported on the ceiling. In this state, the locking edge 22 of the main body 20 is in contact with the ceiling plate 42, and the main reflector 22 is in contact with the ceiling plate 42.
The vertical contact portions 27 of 4 are brought into contact with the ceiling plate 42, and the appliance body 20 is embedded and supported in the mounting hole 43 of the ceiling plate 42.

Then, the auxiliary reflector 33 is attached to the main reflector 24, and the mounting holes, bolts 46 and nuts 47, 48 are
cover.

[0024] In the above embodiments, a ceiling-embedded fixture has been described, but the present invention can also be applied to a ceiling-mounted fixture.

Furthermore, in the above embodiment, the single-end lamp 3
2 was used, but a straight tube fluorescent lamp having caps at both ends may also be used. In this case, the main reflector 24
Attach a pair of lamp sockets to both ends of the lamp.

[0026]

Effects of the Invention According to the present invention, by inserting the mounting crosspiece between the locking edges with the width direction aligned and rotating, both ends are locked to the locking edges and the locking pieces and the clamps are locked. A mounting nut in which a locking edge is clamped with a locking piece, a bolt fixed to the locking piece is inserted into a device body disposed on the underside of the support beam, and the device body is screwed onto the bolt. Since it is supported by The main body of the instrument can be supported by cutting the supporting crosspiece,
There is no need to reinforce with reinforcing materials, the construction process is reduced, and the installation position of the lighting equipment is not restricted by complicated piping such as air conditioner ducts. Construction workability is improved.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of a part of a lighting fixture mounting device showing one embodiment of the present invention.

FIG. 2 is a side view showing the process of attaching the same device.

FIG. 3 is a side view showing a state in which the same instrument is attached.

FIG. 4 is a partially cutaway perspective view showing the process of attaching the same device.

FIG. 5 is a partially cutaway perspective view showing a state in which the same instrument is attached.

FIG. 6 is an exploded perspective view of a conventional lighting fixture mounting device.

FIG. 7 is a longitudinal sectional front view of the same as above.

[Explanation of symbols]

20 Equipment body 35 Support bar 36 Mounting bar 37 Locking edge 45 Locking piece 46 bolt 47, 48 Mounting nut 50 Clamping piece 50a Receiving surface part

Claims (1)

[Claims] Claim 1: An elongated support beam disposed along the ceiling in the longitudinal direction; and a long support beam placed on the upper surface of the support beam, the lower surface of which is open, and the lower edges of both sides bent inward. an elongated mounting frame having a locking edge; a locking piece having a width narrower than the interval between the locking edges of the mounting frame and a length wider than the interval between the locking edges; A bolt having an upper part fixed to a locking piece and a mounting nut screwed to a lower part thereof, and a receiving surface part attached to the bolt located below the locking piece and protruding upwardly on the upper surface of the mounting crosspiece. and a clamping piece that is engaged with both lower edges of the locking edge, and by inserting the clamping piece between the locking edges of the mounting crosspiece with the width direction aligned and rotating, both ends can be attached to the locking edge. At the same time, the locking edge is clamped between the locking piece and the clamping piece, and the bolt fixed to the locking piece is inserted into the instrument body disposed below the support bar. A lighting equipment mounting device characterized in that a lever main body is supported by the mounting nut screwed onto the bolt.