JPH0614851U - Lighting fixture with opening - Google Patents

Abstract

(57) [Abstract] [Purpose] Adjusting the opening allows for uniform smoke emission, eliminating the need for branch duct construction and improving the economic efficiency of equipment construction. [Structure] Opening 2 for sucking indoor air into the ceiling
In the lighting fixture with an opening 3 formed in the outer shade 21, the inner shade 25 is attached to the outer shade 21 so as to be able to move toward and away from the opening 23. Also, the opening 2
The outer shade may be slidably provided with a slide material that overlaps the opening 3 and can close the opening 23.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lighting device with an opening which serves as an inlet for return air of air conditioning or intake of smoke. More specifically, the opening is adjustable.

[0002]

[Prior art]

 There is a so-called ceiling chamber system in which a lighting fixture having an opening is attached to the ceiling for returning air or exhausting air from an air conditioner, and a duct side suction port is opened in the ceiling. FIG. 8 is a plan view of the ceiling chamber system, and FIG. 9 is a vertical sectional view of the ceiling chamber system. In the ceiling chamber system, a smoke exhaust duct 5 is opened in the ceiling 3 where the upper slab and the ceiling 1 are hermetically sealed. A lighting fixture 7 with an opening is arranged on the ceiling 1, and the lighting fixture 7 with an opening has an opening for taking in air on the side of the room 9. Therefore, when a smoke exhaust blower (not shown) is driven, the air in the ceiling 3 is sucked from the opening of the smoke exhaust duct 5, and the pressure in the ceiling 3 becomes low, so that the lighting fixtures 7 with openings open the interior 9 side. The air is taken in, and the smoke that has accumulated near the ceiling is exhausted to the outside through the smoke exhaust duct 5.

[0003]

[Problems to be solved by the device]

 However, in the conventional luminaire 7 with an opening, the opening for inhaling smoke cannot be adjusted, and the opening area of all things is constant. Therefore, in particular, the distance between the upper slab and the ceiling 1, that is, the height inside the ceiling. If it is not enough, the amount of suction of the lighting equipment with an opening 7 near the opening of the smoke exhaust duct 5 increases, while the amount of suction of the lighting equipment with an opening 7 far from the opening of the smoke exhaust duct 5 becomes extremely large. As a result, the smoke could not be exhausted evenly. Even when the height in the ceiling is sufficient, there are beams 11 (see FIG. 9), pipes (not shown), air-conditioning ducts, etc. in the ceiling 3 so that the air in the ceiling 3 is uniformly exhausted. It was not uncommon for people to be unable to take in air from the car. Therefore, if there is a risk that smoke will not be discharged evenly, branch ducts 13 will be installed in the ceiling 3 to open the smoke exhaust duct 5 as shown in FIG. There was a risk that the construction cost would be significantly increased and the economic efficiency would be impaired, because it would have to be distributed. In addition, since the opening of the lighting equipment with opening 7 cannot be closed, when the lighting equipment with opening 7 is installed directly below the concealed air conditioner provided in the ceiling 3, noise is emitted from the lighting equipment with opening 7. There was a risk of leakage, and there was also the problem that the sound in the adjacent living room (meeting room, president's room, etc.) would be transmitted (crosstalk) through the ceiling 3.

The present invention has been made in view of the above situation, and the air volume can be adjusted by allowing the opening to be adjustable, and the smoke can be evenly discharged, so that the construction of the branch duct is not necessary. The purpose of the present invention is to provide a lighting fixture with an opening that can prevent noise leakage and crosstalk by closing the opening, thereby improving the economic efficiency of equipment construction and improving the soundproofing function.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the structure of the lighting fixture with an opening according to the present invention is the lighting fixture with an opening in which an opening for sucking indoor air into the ceiling is formed in the outer shade. It is characterized in that it is attached to the outer shade so that it can be moved toward and away from. Further, the configuration of the lighting fixture with an opening may be such that a sliding member that overlaps the opening and can close the opening is slidably provided on the outer shade.

[0006]

[Action]

 The inner shade reciprocates toward and away from the opening, the opening area of the opening is expanded and contracted, and the intake resistance of the lighting equipment with an opening can be adjusted individually. When the opening is closed, the sound in the ceiling or in the room will not pass through the lighting equipment with the opening, and noise and crosstalk can be blocked. Further, even when the slide material that overlaps the opening portion and can close the opening portion is slid, the opening area of the opening portion expands / contracts as the slide material slides, and the same operation as described above is performed. Intake resistance of lighting equipment can be adjusted individually, and noise and crosstalk can be blocked.

[0007]

【Example】

 Hereinafter, preferred embodiments of a lighting fixture with an opening according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional view of a double shell type vertical slide type lighting fixture with an opening according to the present invention. The outer shade 21 attached to the ceiling 1 (see FIG. 9) has a substantially U-shaped cross-section with an opening at the bottom, and the lower edge is fixed to the ceiling 1 so that it is recessed in the ceiling 1. ing. An opening 23 is formed in the top plate 21a of the outer shade 21, and the opening 23 serves as a ventilation path that connects the inside of the room with the inside of the ceiling. An inner shade 25, which is substantially similar to the outer shade 21 and is smaller than the outer shade 21, is provided on the inner side of the outer shade 21, and an illumination 27 is attached to the inner side of the inner shade 25. The inner shade 25 is provided so as to be movable in the vertical direction, and when moved in the vertical direction, the inner shade 25 moves toward or away from the opening 23. Therefore, when the inner shade 25 is moved toward and away from the opening portion 23, the flow path 29 to the opening portion 23 is expanded and contracted, and the degree of opening and closing of the opening portion 23 can be freely adjusted. As a means for moving the inner shade 25, for example, the outer shade 21 and the inner shade 25 are engaged with a bolt, a coil spring is inserted between the outer shade 21 and the inner shade 25 of the bolt, and the bolt is rotated. It is possible to move the inner shade 25 up and down by moving it. According to this embodiment, the opening 23 can be adjusted with a relatively simple structure, and the lighting fixture with an opening can be manufactured at low cost.

FIG. 2 is a cross-sectional view of a lighting device with an opening according to another embodiment of the double-shell type vertical slide system. In this embodiment, a support rod 31 is provided so as to hang down at the center of the top plate 21a of the outer shade 21, and an illumination attachment plate 33 to which the illumination 27 is attached is fixed to the lower end of the support rod 31. The support rod 31 is provided with an opening / closing plate 35 which is slidable in the vertical direction, and the opening / closing plate 35 is slid in the vertical direction so as to move toward and away from the opening 23. Therefore, as the opening / closing plate 35 is moved toward and away from the opening 23, the flow path 29 to the opening 23 can be freely expanded and contracted as in the above-described embodiment. As a means for moving the opening / closing plate 35, as in the above, the outer shade 21 and the opening / closing plate 35 are engaged with each other by a bolt, a coil spring is inserted between the outer shade 21 of the bolt and the opening / closing plate 35, and the bolt is rotated. It is conceivable that the opening / closing plate 35 is moved up and down by moving it. According to this embodiment, since the opening / closing plate 35 for expanding / contracting the flow path 29 is not exposed and does not impair the external appearance, and the lighting mounting plate 33 is fixed, the lighting 27 is moved by adjusting the opening 23. No change in illuminance.

FIG. 3 is a sectional view of a lighting fixture with an opening according to an embodiment of a double shell type horizontal slide system, and FIG. 4 is an explanatory diagram of a slide structure. In this embodiment, an inner shade 37 having a shape similar to that of the outer shade 21 and smaller than the outer shade 21 is provided inside the outer shade 21, and a lower portion of the inner shade 37 is surrounded by a horizontal plate 37 a extending toward the outer shade 21. It is connected to the shade 21. A vent hole 39 is formed in the horizontal plate 37a, and the vent hole 39 serves as an intake air for indoor air. A slide member 41 is slidably attached to the horizontal plate 37a, and the slide member 41 is slid to overlap the ventilation hole 39 and adjust the opening area of the ventilation hole 39. As the sliding structure of the slide member 41, as shown in FIG. 4, a pair of slide members 41 is provided on the horizontal plate 37a, a total of four slide members 41, and the pair of slide members 41 are slid in the contact and separation directions. By doing so, it is possible to adjust the opening area of the ventilation hole 39. Further, the ventilation hole 39 is formed as a plurality of slit holes formed in the sliding direction of the slide member 41, the same slit hole is also formed in the slide member 41, and the sliding amount of the slit holes is overlapped by sliding the slide member 41. If the slide member 41 is adjustable, the amount of ventilation can be adjusted with a slight sliding amount of the slide member 41. According to this embodiment, the slide member 41 for adjusting the ventilation hole 39 is arranged near the ceiling surface, and the slide member 41 can be easily moved by hand, so that the opening 23 can be adjusted very easily. You can

FIG. 5 is a sectional view of a lighting fixture with an opening according to another embodiment of the double-shell type horizontal slide system. In this embodiment, a lighting attachment / slide material holding portion 43 is provided inside the outer shade 21, and a horizontal slide material holding portion 43a is formed in the lighting attachment / slide material holding portion 43. The slide member 45 is slidably inserted into the slide member inserting portion 43a, and the slide member 45 is slid so that the slide member 45 moves toward and away from the inner surface of the outer shade 21. Therefore, the slide member 45 is moved toward and away from the inner surface of the outer shade 21, so that the flow path 29 to the opening 23 can be freely expanded and contracted. According to this embodiment, when the flow path 29 is closed, the slide material 45 spreads over the entire rear surface of the illumination 27. Therefore, if the slide material 45 is subjected to an appropriate reflective coating treatment, the illuminance of the illumination 27 can be increased. You can also

FIG. 6 is a sectional view of a lighting fixture with an opening according to an embodiment of a single shell type horizontal slide system. In this embodiment, the opening 23 is formed in the top plate 51a of the outer shade 51, and the illumination 27 is arranged below the opening 23. Therefore, the opening 23 is not directly viewed by the illumination 27. A slide member 53 is slidably attached to the opening 23 on the top surface of the top plate 51a, and the slide member 53 slides to overlap the opening 23 and adjust the opening area of the opening 23. There is. As a sliding structure of the slide member 53, as shown in the embodiment of FIG. 3, a pair of slide members 53 are slid in the directions toward and away from each other to adjust the opening area of the opening 23. The opening 23 is a slit hole, and a similar slit hole is formed in the slide member 53 so that the sliding amount of the slide hole 53 can be adjusted by sliding the slide member 53. Good. According to this embodiment, the structure of the lighting fixture with the opening can be extremely simplified, and since the flow path 29 is not particularly formed and the lighting fixture is communicated with the ceiling through only the opening 23, the opening is not formed. It is possible to improve the efficiency of intake from 23.

FIG. 7 is a sectional view of a lighting fixture with an opening according to an embodiment of a single-shell type side duct system. In this embodiment, the lower edge of the outer shade 61 is a horizontal flat plate 61a bent in parallel with the ceiling surface, and the openings 23 are formed in each horizontal plate 61a, and the slide member 63 slides. It is attached freely. Also in this embodiment, the sliding structure of the slide member 63 is such that the slide members 63 are slid toward and away from each other to adjust the opening area of the opening 23 (the same structure as the embodiment shown in FIG. 3). No.) or the opening 23 is a slit hole, and the slide member 63 is also provided with a similar slit hole so that the sliding amount of the slide hole 63 can be adjusted by sliding the slide member 63. It may be. According to this embodiment, the structure of the lighting fixture with an opening can be extremely simplified, and at the same time, the inside of the ceiling and the inside of the room can be opened without forming the smoke exhaust passage 29 before and after the opening 23. Since they are communicated in a straight line through the portion 23, the intake efficiency from the opening portion 23 can be made extremely high.

[0013]

[Effect of device]

 As described in detail above, in the lighting fixture with an opening according to the present invention, since the inner shade is attached to the outer shade so as to be able to move toward and away from the opening, the inner shade is attached to the opening. When they are moved toward and away from each other, the opening area of the opening is expanded and contracted, the intake resistance of the lighting fixture with an opening can be adjusted individually, and uniform smoke exhaust can be achieved with the ceiling chamber method. No need for construction. In addition, since the opening can be closed, sound in the ceiling or in the room does not pass through the lighting equipment with the opening, and noise and crosstalk can be prevented. As a result, it is possible to improve the economical efficiency of equipment construction and the soundproofing function. Also, if a slide material that can close the opening is slidably provided on the outer shade, the economic efficiency of equipment construction and the soundproofing function can be improved, as well as the above effect, and the opening The structure of the lighting fixture can be simplified and the operability can be improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a double-shell type vertical slide type lighting fixture with an opening according to the present invention.

FIG. 2 is a cross-sectional view of a lighting fixture with an opening according to another embodiment of a double-shell type vertical slide type.

FIG. 3 is a cross-sectional view of a lighting fixture with an opening according to an embodiment of a double-shell type horizontal slide system.

FIG. 4 is an explanatory diagram of a slide structure.

FIG. 5 is a cross-sectional view of a lighting fixture with an opening according to another embodiment of the double-shell type horizontal slide system.

FIG. 6 is a cross-sectional view of a lighting fixture with an opening according to an embodiment of a single shell type horizontal slide system.

FIG. 7 is a cross-sectional view of a lighting fixture with an opening according to an embodiment of a single-shell type side duct system.

FIG. 8 is a plan view of a ceiling chamber system.

FIG. 9 is a vertical sectional view of a ceiling chamber system.

FIG. 10 is a plan view of a ceiling chamber system provided with a branch duct.

[Explanation of symbols]

 21, 51, 61 Outer shade 23 Opening 25, 37 Inner shade 41, 45, 53, 63 Slide material

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masaya Hiraoka 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A lighting fixture with an opening, wherein an opening for intake of indoor air into the ceiling is formed in the outer shade, wherein the inner shade is attached to the outer shade so that the inner shade can move toward and away from the opening. A lighting fixture with an opening characterized in that 2. A lighting fixture with an opening, wherein an opening for sucking indoor air into the ceiling is formed in the outer shade, and a slide member that overlaps the opening and can close the opening slides on the outer shade. A lighting fixture with an opening, which is provided freely.