JPH0566813U - Ceiling mounted luminaire - Google Patents

Abstract

(57) [Summary] [Purpose] To facilitate the maintenance and inspection of lighting fixtures in ceiling-mounted lighting fixtures in which multiple fixtures are arranged in the fixture body. [Structure] A fixture main body 1 disposed on a ceiling includes a plurality of lamps 2 inside. A catwalk 4 is arranged at one place around the instrument body 1. The lamp 2 is suspended on a movable frame 16. The movable frame 16 is rotatably connected to the instrument body 1 via a rotating device 3. The side surface of the instrument body 1 facing the catwalk 4 is open.
Therefore, the lamp can be replaced by rotating the movable frame 16 with respect to the fixture body 1 and pulling out the lamp 2 in order from the fixture body 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a ceiling-mounted luminaire mainly provided for stage lighting, studio lighting, etc., in which a plurality of lamps are provided inside the main body of the equipment, and a catwalk is arranged at least at one place around the main body of the equipment.

[0002]

[Prior Art]

 BACKGROUND ART Conventionally, as this type of ceiling-mounted lighting fixture, as shown in FIGS. 7 and 8, there is provided a fixture main body 1 provided with a plurality of (here, four) lamps 2. In such a ceiling-mounted luminaire, a metal grill-shaped catwalk 4 is usually arranged at one place around the luminaire body 1 for an operator who performs maintenance and inspection of the luminaire 2. A ceiling panel 5 is arranged at a portion around the instrument body 1 where the catwalk 4 is not provided. In such a ceiling-mounted lighting fixture, when performing maintenance / inspection such as lamp replacement, the metal frame 6 that suspends the lamp 2 is used as shown in the double-dotted line in FIG. The current situation is to pull it up from the main body 1 and remove it from the instrument main body 1.

[0003]

[Problems to be solved by the device]

 In the above configuration, since the lamp 2 is lifted upward, there is a problem that work is difficult to perform when the lamp 2 is heavy or the lamp 2 is bulky. Further, since the lamp 2 is pulled out upward with respect to the main body 1, the ceiling dimension needs to be large enough for the lamp 2 to be pulled out, and an unnecessary dead space is formed in the building. ..

The present invention is intended to solve the above problems, and makes it possible to relatively easily perform the maintenance and inspection work of the lamp 2 even when the lamp 2 is heavy or bulky. It is intended to provide a ceiling-mounted lighting fixture that can be installed without forming a dead space if the size of the ceiling floor is equal to or greater than the height of the fixture body.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a ceiling-mounted lighting fixture equipped with a plurality of lamps in a main body of a fixture, which is attached to the ceiling and has a catwalk at least at one place around the ceiling. In addition to arranging the lamps around the center set in 1 above, a rotation device is provided to attach the lamps to the main body of the fixture so that the lamp can rotate around the center described above. An opening is formed on the side that faces the catwalk so that the lamp can be exposed on the side of the catwalk.

[0006]

[Action]

 According to the above configuration, a rotation device is provided to attach the lamp to the fixture body so that the fixture can be rotated about one center with respect to the fixture body, and the fixture is catwalked on the side facing the catwalk in the fixture body. Since the opening that can be exposed on the side is provided, the lamp can be maintained and inspected by rotating the lamp around the above center and pulling out the lamp from the opening. In other words, since it is not necessary to pull out the lamp above the main body of the fixture when performing maintenance and inspection of the lamp, maintenance and inspection work can be easily performed even when the lamp is heavy and bulky. Moreover, since the lamp is not pulled out above the fixture body, it can be installed if the size of the ceiling is about the height of the fixture body, and no unnecessary dead space is formed.

[0007]

【Example】

 (Example 1) As shown in FIG. 4, the instrument main body 1 includes a metal lower frame 11 and an upper frame 12 formed in an octagonal shape in which the corners of a square are cut off obliquely. As shown in FIG. 3, the four corners of the lower frame 11 and the upper frame 12 are connected to each other through the side plates 13. That is, the four side surfaces of the instrument body 1 are open to form openings. The opening surface of the lower frame 11 is covered with a lattice-shaped louver 14. A fixed frame 15 is installed on the upper frame 12, and a movable frame 16 is rotatably connected to the center of the fixed frame 15. That is, the rotating frame 3a is provided at the center of the fixed frame 15, and the movable frame 16 is coupled to the rotating shaft 3b pivotally supported by the rotating seat 3a. The movable frame 16 rotates with respect to the fixed frame 15 via the rotation device 3 configured by. As shown in FIG. 1A, the movable frame 16 is formed in a substantially H shape, and the lamp 2 is suspended by a suspender 21 made of a chain at the tip of each leg. As shown in FIG. 2, the lamp 2 includes a holder 22 for holding the lamp and a reflector 23 surrounding the lamp. Further, a security lamp 24 may be provided at the center of the movable frame 16 as shown in FIG. The suspending tool 21 may be a chain using a ball joint, a wire, or any other device that can tilt the lamp 2 with respect to the fixed frame 15. Since the power supply line connected to the lamp 2 is drawn out above the fixture body 1, the rotating device 3 is provided with a stopper 17 so that the power supply line is not twisted by the rotation of the movable frame 16. ing. That is, the stop pin 17b provided on the rotary shaft 3b can be brought into contact with the stop shaft 17a provided on the rotary seat 3a, so that the rotation range of the rotary shaft 3b is set to a range of about 360 degrees.

According to the above configuration, the side surface of the device body 1 is open except for the corners, so that an opening portion is formed between the side plates 13 on the side surface of the device body 1 facing the catwalk 4. Therefore, as shown in Fig. 1 (b), the lamp 2 can be tilted so that it can be pulled out toward the catwalk 4 through the opening, and maintenance and inspection such as lamp replacement can be performed without pulling the lamp 2 upward. Can be done. Further, since the lamp 2 can be rotated with respect to the fixture main body 1, the movable frame 16 can be rotated so that the respective lamps 2 can be sequentially pulled out toward the catwalk 4, and the surroundings of the fixture main body 1 Maintenance and inspection work can be easily performed on the catwalk 4 provided at one place. Here, in the above-described illustrated example, the size is set so that a part of the lamp 2 is exposed to the outside of the fixture body 1 when the movable frame 16 is rotated, so the fixture body 1 has the side plates 13 only at the corners. However, when the dimensions are set so that the lamp 2 can be rotated inside the fixture body 1, only the part of the fixture body 1 facing the catwalk 4 is provided. It is also possible to provide an opening and provide a side plate at another portion. In that case, it is possible to provide a lid plate that can be opened and closed in the opening. Further, the movable frame 16 may be formed in a disc shape instead of the substantially H shape.

Example 2 In this example, as shown in FIGS. 5 and 6, an annular rail 3c is provided in the fixture body 1 as the rotating device 3, and each lamp 2 is provided with respect to the rail 3c. The runner 3d is hung so that it can travel freely. That is, since the lamp 2 can travel along the rail 3c, the lamp 2 can be sequentially drawn toward the catwalk 4 as in the movable frame 16 in the first embodiment, and the lamp 2 can be maintained.・ The inspection can be done easily. Here, in order to draw the lamp fixture 2 at a position far from the catwalk 4 toward the catwalk 4, a bar with a hook or the like may be used. Further, in order to return the lamp 2 to the original position after maintenance and inspection, the recesses or the like may be provided in the key portions of the rail 3c so that the runner 3d can be locked at a predetermined position. The other configuration is similar to that of the first embodiment, and therefore the description is omitted.

[0010]

[Effect of the device]

 As described above, the present invention is provided with a rotating device that attaches the lamp to the fixture body so that the fixture can rotate around one center with respect to the fixture body, and the fixture is attached to the side facing the catwalk in the fixture body. Since the opening that can be exposed on the walk side is provided, there is an advantage that the lamp can be maintained and inspected by rotating the lamp around the above center and pulling out the lamp from the opening. That is, since it is not necessary to pull out the lamp above the main body of the fixture when performing maintenance / inspection of the lamp, maintenance / inspection work can be performed easily even when the weight or weight of the lamp is large. .. In addition, since the lamp is not pulled out above the fixture body, it can be installed if the size of the ceiling is about the height of the fixture body, and there is an effect that unnecessary dead space is not formed.

[Brief description of drawings]

1A and 1B show Example 1, in which FIG. 1A is a plan view and FIG. 1B is a schematic sectional view.

FIG. 2 is a sectional view of a main part of the first embodiment.

FIG. 3 is a plan view of a main part of the first embodiment.

FIG. 4 is a cutaway bottom view of the first embodiment.

5A and 5B show a second embodiment, (a) is a plan view and (b) is a schematic sectional view.

FIG. 6 is a perspective view of a main part of the second embodiment.

FIG. 7 is a plan view showing a conventional example.

FIG. 8 is a schematic cross-sectional view showing a conventional example.

[Explanation of symbols]

 1 Instrument main body 2 Lamp 3 Rotating device 4 Catwalk

Claims (1)

[Scope of utility model registration request] 1. A ceiling-mounted luminaire having a plurality of lamps in a main body of a fixture, which is mounted on a ceiling and has a catwalk arranged at at least one position around the ceiling. Along with
A rotating device is provided to attach the lamp to the main body of the fixture so that the lamp can rotate around the center of the main body,
A ceiling-mounted luminaire having an opening formed on the side of the main body of the luminaire that faces the catwalk so that the lamp can be exposed to the catwalk.