JP2001084828A - Recessed luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the cost for parts and the working time by allowing luminaire mounting fittings fitted to a ceiling material of short side parts at both ends of a mounting hole, to be screwed to a mounting parts formed on an upper surface of a main body of the luminaire. SOLUTION: A luminaire mounting fittings 21 are respectively inserted and fixed in two plate members mounted on both end short side parts of a luminaire- mounting hole 31 of a ceiling material 30. Then bolts 27 screwed in advance from upper surfaces of supporting holes 25 of L-shaped supporting parts 24 are screwed into threaded grooves 28 formed on an upper surface of a luminaire body, and nuts 29 are screwed from a lower opening part of the luminaire body to mount and fasten the luminaire body. The luminaire mounting fittings 21 are formed into the shape of engagement parts selectable corresponding to a plate thickness of the ceiling material to cope with every methods of construction, and the cost of parts and the working time necessary for installation can be reduced. Further the cutting of C-channel 24 and the reinforcement are unnecessary even in a direct mounting method.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a ceiling-mounted luminaire mounted on a ceiling.

[0002]

2. Description of the Related Art A conventional recessed fluorescent lamp apparatus is composed of an apparatus body, a reflector, a lamp, a socket, a ballast, and other wiring parts. The weight of a standard 40W2 fluorescent lamp apparatus is as follows. Although it depends on the type of the ballast, it is about 5 kg to 8 kg. Generally, when this type of equipment is mounted on a ceiling of an office or the like, the equipment is mounted by a special hanging bolt (anchor bolt) cast on an upper concrete floor (slab) during construction.

FIG. 5 is a schematic side view of a conventional recessed luminaire, which has a rectangular luminaire main body 1 and a reflecting plate 2 supported inside the luminaire main body. , And a straight tube fluorescent lamp is mounted between the sockets. In addition, a so-called C channel 4 is provided on a plurality of anchor bolts 3 serving as ceiling support fittings.
, The M bar 5 is supported on the C channel 4, and the ceiling material 6 is supported on the M bar 5. And
A lighting fixture is attached to the opening of the ceiling material, and is held in the ceiling by hanging bolts 7 (stud bolts) connected to the fixture body.

On the other hand, lighting fixtures such as recessed downlights, which are relatively light in weight, weigh about 2 kg.
The mounting hole size of the ceiling material is as small as about φ100 to 200 mm. For this reason, it is possible to directly mount and support the ceiling material with a dedicated mounting bracket mounted on the fixture. However, if a general recessed fluorescent light fixture is placed directly on the ceiling material without using stud bolts and is held, the ceiling material cannot withstand the weight of the fixture and cannot be supported. Therefore, the lighting equipment is held by stud bolts.

Here, a general installation procedure for mounting a lighting fixture on a conventional ceiling will be described with reference to FIG. (1) Determining the arrangement of lighting equipment. (2) A special insert fitting is embedded in concrete during concrete placing work on an upper floor (slab). (3) Attach hanging bolts (anchor bolts and stud bolts) to the insert after completion of the upper floor construction. (4) Fix the C channel and the M bar to the anchor bolt. (5) Attach ceiling material to M bar. (6) Provide mounting holes (openings) for lighting fixtures in the ceiling material. (7) Adjust the positions of the stud bolt and the opening. (8) Change the position of the stud bolt or strike the insert bracket again. (9) C-channel or M-bar is cut as required. (10) Pull the power supply line into the fixture body, tighten the fixture body to the stud bolt with a nut, and attach it to the ceiling opening. (11) Connect the power supply and attach the reflector to the instrument body. (12) Set the lamp and complete the installation.

[0006]

However, according to the construction method, there are the following problems. The placement of lighting fixtures on the ceiling is more efficient after the layout of the room has been determined after the concrete casting work, but in practice, a special insert metal fitting is used when placing concrete on the upper floor. The mounting position of the lighting fixture will be determined when embedded in the interior. In fact, many changes in the position of the lighting fixtures occur before and after the concrete is placed on the floor, and thus there is a problem in that the work of embedding the insert fittings in the concrete and the work of attaching the suspension bolts need to be performed again.

Further, in the case of a fluorescent lamp apparatus using a general fluorescent lamp (diameter 32 mm), the ceiling height of the fluorescent lamp apparatus is 100 mm.
mm or more, it is necessary to cut the C-channel and M-bar, which are ceiling support brackets, at the time of installation. Reinforcement work after cutting the C-channel is also troublesome, and the work is complicated and requires an excessive amount of time. There is a problem. Recently,
Fluorescent lamp (T
The use of 8 lamps) and C-channel avoidance type lighting fixtures with a ceiling embedded height as small as 26 mm have begun to spread, but even with this type of fluorescent lighting equipment, the positional relationship with the M bar in the ceiling was adjusted. In the case where the installation is hindered, there is a problem that the cutting operation is required.

The present invention has been made in view of the above, and by improving the mounting structure of a recessed lighting fixture to a ceiling material, the lighting fixture can be installed in the ceiling without using hanging bolts for mounting the lighting fixture. The purpose of the present invention is to reduce the cost and time of parts required for mounting and installing hanging bolts, and to reduce the cost and time required for parts due to a change in a ceiling mounting position of a lighting fixture before and after placing concrete. . Further, it is not necessary to cut the C channel, which is a ceiling support bracket, and to perform reinforcement work after cutting the C channel, and it is another object of the present invention to reduce the cost and work time involved. In any case, there is an advantage that the cutting time of the M-bar does not occur, the working time can be reduced, and the strength of the ceiling material can be prevented from lowering. It is an object of the present invention to provide an embedded lighting device that can easily and surely support a lighting device in a ceiling regardless of the lighting device.

[0009]

According to the present invention, a ceiling material is held via a ceiling support fixture fixed to a ceiling surface of a building, an appliance mounting hole is formed at an appropriate position of the ceiling material, and a rectangular hole is formed in the mounting hole. It is configured to attach a lighting fixture having a shape, fitting the fixture to at least the ceiling material on the short sides at both ends of the mounting hole, and screwing the fitting and the mounting portion formed on the upper surface of the fixture body. It is characterized by being free. The appliance mounting bracket includes a fitting portion having a U-shaped cross section opened outward, an inverted L-shaped supporting portion fixed to the center of the back surface of the fitting portion, and a flat portion of the supporting portion. And a support hole formed in the hole.
Further, the other end of the connecting tool such as a wire fixed to the upper surface of the appliance body is engaged with a part of a ceiling support fitting inside the ceiling. Still further, the weight of the lighting fixture is not more than the weight of the ceiling material removed to form a mounting hole in the ceiling material.

[0010] Further, a lighting fixture in which a straight tube-type fluorescent lamp having a tube diameter of 20 mm or less is mounted inside a rectangular fixture body having a ceiling embedded height of 22 mm or less, and a discarding method are used. A fixture is fitted to short sides at both ends of the fixture hole formed in the ceiling material, and the lighting fixture is attached to the ceiling material via the fixture.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing an embedded fluorescent lamp device and a ceiling mounting portion according to an embodiment of the present invention. FIG. 2 is an exploded perspective view seen from the inside of the ceiling in FIG. FIG. 3 is a schematic side view of a main part. 1 to 3, reference numeral 11 denotes an open-bottomed appliance main body formed of a steel plate and formed in a rectangular and box shape, and a flange 11a that comes into contact with a ceiling material is provided around the entire periphery of the opening. Formed and its ceiling embedded height is 22m
m, the width (the short side of the main body) is 200 mm, and the vertical width (the long side of the main body) is 1200 mm. In this case, the dimensions of the ceiling material mounting holes (openings) described later are about 170 mm in width and about 1185 mm in length. Further, as the material of the instrument body, a material formed of aluminum or resin which can be reduced in weight and mass-produced may be used in addition to the steel plate.

Numeral 12 denotes an electronic ballast fixed inside the instrument body 11, numeral 13 denotes a pair of sockets arranged at both ends inside the instrument body, and numeral 14 denotes a lower surface of the instrument body so as to cover the electronic ballast and the like. Is a V-shaped reflector. Reference numeral 15 is a straight tube-type fluorescent lamp mounted between a pair of sockets and dedicated to high-frequency lighting, and has a diameter of 16.5.
mm T5 lamp. In addition, the ballast is not only fixed inside the fixture body, but also in order to further reduce the weight of the fixture, a dedicated storage box is used to attach it to the ceiling support bracket to separate the fixture body and the ballast. It may be.

The total weight of the main body, the reflector, the electronic ballast, the socket and the two fluorescent lamps is about 2300 g. This is a conventional luminaire using a general fluorescent lamp having a diameter of 32 mm, or a high frequency lighting dedicated lamp (T
Even when compared to a lighting fixture using (8 lamps), the fixture volume is reduced. In addition, the weight of the appliance is reduced with the decrease in the volume of the appliance. For example, the weight of a two-lamp device using a lamp with a diameter of 32 mm is 5 kg to 8 kg, and the diameter of the lamp is 25 kg.
3Kg ~ 5K for 2 lamp fixtures using 5mm T8 lamp
g, it is possible to reduce the instrument weight to 2 kg to less than 3 kg.

As shown in the figure, a plurality of anchor bolts 41 cast on a concrete floor on the upper floor are fixed to the space above the ceiling when the ceiling is constructed.
, A C channel 42 and an M bar 43 are fixed, and the ceiling member 30 is fixed to the M bar 43. Further, an appliance mounting hole 31 (opening) similar to the outer diameter of the appliance body is formed at an appropriate position of the ceiling material 30. In FIG. 3, reference numeral 32 denotes a base ceiling material (base hood), and reference numeral 33 denotes an upper ceiling material (decorative material).

Reference numeral 21 denotes an appliance mounting bracket, which is a ceiling material 30.
A fitting portion 22 having a U-shaped cross section is formed so as to open outward to be inserted into the thickness of the ceiling material at two places on the short sides at both ends of the device mounting hole 31. Also, U-shaped fitting portion 2
A bent portion 23 is formed so as to be connected to the second portion 2 and abut on one corner of the long side of the mounting hole 31. The mounting bracket 21 is made of a stainless steel plate having a thickness of about 0.6 mm, and an inverted L-shaped support portion 24 is provided at the center of the back of the U-shaped fitting portion 22 (apparatus side).
Is fixed, and a support hole 25 is formed in the plane portion. Further, an appropriate number of engaging projections 26 are formed on the upper surface of the U-shaped fitting portion 22 to more securely fit the ceiling material.

Then, in order to attach the fixture body to the opening of the ceiling material via the fixture fitting, first, the fixture fitting 21 is attached to the ceiling material 30 at the two short sides at both ends of the fixture mounting hole 31.
Insert it into the plate and fix it. Next, a bolt 27 previously screwed from the upper surface of the support hole 25 of the L-shaped support portion 24 is screwed into a screw groove 28 formed on the upper surface of the instrument body, and a nut 29 is screwed into the lower surface opening of the instrument body. It has a structure that can attach and tighten the instrument body.

Reference numeral 51 denotes a connecting member which supports the apparatus main body 11 on a C channel 42 which is a part of a ceiling material, and is made of, for example, a wire, a stainless steel chain or a nylon string. The connecting tool 51 has one end attached via a mounting bracket 52 fixed to one end of the upper surface of the instrument main body 11, the other end engaged with a part of the C channel 42, and the distal end thereof connected to the upper surface of the instrument main body. It is fixed to the other end. With this configuration, it is possible to prevent the lighting fixture from falling from the ceiling material even if there is a large vibration due to an earthquake or the like.

In general, ceiling materials are assembled in a grid by ceiling support fittings (C-channels, M-bars) using anchor bolts cast on a concrete floor on the upper floor. afterwards,
Substrate board (gypsum board: thickness 9.5mm or 1
2.5mm) is fixed to the bracket with screws, and the ceiling material (thickness: 9.5mm or 12.5mm) is affixed to the ceiling, and the ceiling is directly affixed without using a base board. There is a direct pasting method in which materials are pasted.

[0019] The fitting for fittings according to the present invention can have a shape of a fitting portion that can be selected according to the thickness of the ceiling material so as to be compatible with any construction method. Also, in the case of the laminating method, the distance from the lower surface of the C channel to the lower surface of the ceiling material is about 37 to 40 mm, and in the case of the direct bonding method, the distance from the C channel to the lower surface of the ceiling material is approximately 28 to 40 mm.
It is 31 mm, and the height of the device body embedded in the ceiling is about 2
It is regulated to 6 to 37 mm. And, in the case of the discarding method which is frequently used at present, it is not necessary to cut the C channel or the M bar, so that the construction time can be greatly reduced.

Generally, the size of the base ceiling material is 910 × 18
Those having a thickness of 20 mm and a thickness of 9.5 mm or 12.5 mm are used. The size of the ceiling material is 455
× 910mm or 910 × 910mm, thickness 9.5mm
Alternatively, a 12.5 mm one is used. The outer diameter of the lighting fixture according to the present invention is the embedded height 2
2mm, width 200mm, length 1200mm,
The size of the ceiling mounting hole is 170mm in width and 1185 in length.
mm, which is about one-half that of a conventional general 40W two-lamp lighting device.

Accordingly, the size of the ceiling material mounting hole can be reduced, the weight of the fixture can be reduced to less than 3 kg, and the weight of the ceiling material removed to form the ceiling material mounting hole can be reduced to three. 0.7 kg or less. Therefore, the load for mounting on the ceiling material is reduced, the mounting on the ceiling material can be performed only with the fixture mounting bracket, and a fall accident between the ceiling material and the lighting device does not occur.

Next, a procedure for installing the recessed lighting device according to the present invention will be described with reference to FIG. (1) Determining the arrangement of lighting equipment. (2) The insert fitting is buried in the concrete at the time of placing concrete on the upper floor. (3) Attach hanging bolts (anchor bolts) to the inserts after completion of the upper floor construction. (4) Fix the C channel and the M bar to the anchor bolt. (5) Attach ceiling material to M bar. (6) Provide holes for fixtures in the ceiling material. (7) Fix the fixture to the ceiling material on the short side of the attachment hole. (8) Hook the fall prevention wire of the instrument body on the C channel. (9) Connect the power line to the terminal block of the fixture body, tighten the fixture body with screws and attach it to the ceiling material. (10) A reflector is attached inside the instrument body. (11) Set the lamp and finish the installation.

The fixture may be inserted into the ceiling material on the long side of the fixture hole. in this case,
The shape of the metal fitting may be divided so as to be attached to four corners of the mounting hole of the ceiling material, and a bolt position may be provided at the lower end. Further, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the gist.

[0024]

As described above, the recessed lighting device according to the present invention has the following advantages. Since the lighting fixture can be mounted without using stud bolts, it is possible to reduce parts costs and work time required for the installation. With the change in the position of lighting fixtures after concrete placing work,
Arrangement of newly generated parts, cost and work time can be reduced. In the case of the discarding method, which is frequently used, the embedded height of the lighting fixtures is less than the thickness of the ceiling material, so there is no need to cut the C channel or M bar, and the construction time can be greatly reduced, and Can be reduced. Even in the case of the direct bonding method, there is no need to cut the C channel, and there is no need to perform reinforcement work after cutting the C channel. Since the number of members used for the lighting equipment is smaller than in the past, resources can be saved, and the amount of industrial waste is small, so that a lighting equipment that is environmentally friendly can be manufactured. Lighting equipment can be reduced in weight and size, packaging can be simplified, and transportation costs can be reduced. Even if a large vibration occurs due to an earthquake or the like, the lighting equipment and the like can be prevented from falling.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embedded fluorescent lamp device and a ceiling mounting portion according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the ceiling shown in FIG.

FIG. 3 is a schematic side view of a main part of the same.

FIG. 4 is an explanatory view showing a ceiling installation procedure of the recessed lighting device according to the present invention.

FIG. 5 is a schematic side view of a conventional recessed lighting device.

FIG. 6 is an explanatory view showing a ceiling installation procedure of a conventional recessed lighting fixture.

DESCRIPTION OF SYMBOLS 11 Instrument body 12 Electronic ballast 13 Socket 14 Reflector 15 Straight tube fluorescent lamp 21 Instrument mounting bracket 22 Fitting part 23 Bend part 24 Support hole 25 Support part 26 Engagement projection 27 Bolt 28 Screw groove 29 Nut 30 Ceiling material 31 Fixture mounting hole 32 Ceiling base material (base board) 33 Top ceiling material (decorative material) 41 Anchor bolt 42 C channel 43 M bar 51 Connecting tool 52 Mounting bracket

Claims (5)

[Claims] 1. A ceiling material is held via a ceiling support fixture fixed to a ceiling surface of a building, a fixture mounting hole is formed in an appropriate position of the ceiling material, and a rectangular lighting fixture is mounted in the mounting hole. In the recessed lighting fixture, the fixture is fitted to at least the ceiling material on the short sides at both ends of the mounting hole, and the fitting is screwed to the fitting formed on the upper surface of the fixture body of the lighting fixture. Recessed lighting fixture with the fixture body attached to the ceiling material. 2. The fitting according to claim 1, wherein the fitting has a U-shaped cross-section, which is open outward, an inverted L-shaped support fixed to the center of the back surface of the fit, and the support. The embedded lighting device according to claim 1, further comprising a support hole formed in the flat surface portion. 3. The embedding device according to claim 1, wherein the other end of the connecting member, such as a wire, fixed to the upper surface of the device main body is engaged with a part of a ceiling support inside the ceiling. Shaped lighting fixtures. 4. The recessed lighting according to claim 1, wherein a weight of the lighting fixture is equal to or less than a weight of the ceiling material removed to form a mounting hole in the ceiling material. Appliances. 5. A lighting device in which a straight tube-type fluorescent lamp having a tube diameter of 20 mm or less and a ceiling embedded height of 22 mm or less is mounted inside a rectangular device main body, and a discarding method is used. A recessed fluorescent lamp comprising fittings for fitting fixtures to short sides at both ends of a fixture mounting hole formed in the ceiling material, and mounting the lighting fixture to the ceiling material via the fittings. Appliances.