JPH09293407A - Lighting system for high ceiling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate replacement of a lamp by disposing a supporter in the vicinity of the lower end of a luminaire body, pivoting a movable member having a hook at the tip thereof on a portion corresponding to a strut of an opening/closing frame, and forming an arcuate slot on a fixed member. SOLUTION: When a pressing pin 25 projecting from the lower face of an opening/closing frame 16 of a luminaire supported by a high ceiling is pressed by, e.g. an operating rod, a movable shaft 23 is pressed by the pressing pin 25, to be moved along an arcuate slot 19, and a movable member 20 is moved to allow a hook 21 to be disengaged from a supporter 15, so that the opening/ closing frame 16 is opened in a luminaire body 11. Simultaneously with the opening of the opening/closing frame 16, a light source disposed in a socket is oriented downward. At this stage, the light source is replaced by an elongated jig. Thereafter, when part of the opening/closing frame 16 is pushed upward by the operating rod, the hook 21 of the movable member 20 engages the supporter 15, thus completing replacing work of the light source.

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 lighting device for a high ceiling.

[0002]

2. Description of the Related Art Conventionally, a lighting fixture fixed to a high ceiling of a hall of a building or a lighting fixture fixed to a high ceiling of a gas station is used at a high place for maintenance and inspection of the lighting fixture and lamp replacement. Therefore, the work is often difficult. As a structure for opening and closing a lighting fixture of a conventional high ceiling lighting device, for example, a structure as shown in FIG. 7 has been implemented. In the one shown in FIG. 7, a movable piece 5 having a hook-shaped portion 4 is pivotally supported at one end of an opening / closing frame 3 which supports a hook metal 2 at one end of a lighting fixture body 1 and at the same time supports a translucent plate. By operating the operating piece 6 provided at one end of the movable piece 5, the hook-shaped part 4 of the movable piece 5 is hooked and unhooked on the hook metal 2.

[0003]

By the way, according to the above-described high ceiling lighting device, it is necessary to open and close the open / close frame of the lighting fixture by using, for example, a ladder or the like, and there is a drawback that the lamp replacement work is troublesome. .

The present invention has been made in view of the above points, and an object of the present invention is to provide a high-ceiling lighting device which can easily perform operations such as lamp replacement of lighting equipment.

[0005]

Means for Solving the Problems The present invention has the following structure to solve the above-mentioned problems. That is, the invention according to claim 1 relates to a high-ceiling lighting device in which an opening / closing frame that supports a translucent plate is openably and closably supported at the lower end of a lighting fixture main body in which a light source is mounted. A support portion is provided near the lower end of the lighting equipment main body, and on the other hand, at a position corresponding to the support shaft of the opening / closing frame,
A movable body having a hook-shaped portion at its tip is axially mounted, and an arc-shaped long groove is formed on the fixed body. Further, the movable shaft is movably arranged in the same groove, and the movable shaft can be pressed from the lower end. Then, by moving the movable shaft along the long groove, the hook-shaped portion of the movable body is configured to engage with and disengage from the support portion, and the open / close frame of the lighting fixture body can be easily disengaged.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION A lighting device for a high ceiling according to the present invention will be described below with reference to FIGS. In FIGS. 1 and 2, reference numeral 11 denotes a main body of a lighting fixture fixed to a hall of a building or a high ceiling of a gas station, and has a box shape with its lower surface opened. Reference numeral 12 is a socket support plate mounted inside the luminaire main body 11, 13 is a socket fixed to the socket support plate 12, and 14 is a light source mounted on the socket 13, for example, 220 watts of high-pressure sodium It is constructed by using a lamp or a high-pressure mercury lamp of 250 watts.

Reference numeral 15 is a support portion provided near the lower end of the lighting equipment main body 11, and is constituted by providing a convex portion, for example. Reference numeral 16 denotes an opening / closing frame that is pivotally attached to the lower end of the luminaire main body so as to be openable and closable, and 17 is a translucent plate fixed to the opening / closing frame 16 and is made of, for example, resin. Reference numeral 18 denotes a portion corresponding to the support portion 15 of the lighting equipment main body 11, and the opening / closing frame 16
A fixed body supported at one end of the fixed body, 19 an arc-shaped long groove formed on the wall surface of the fixed body 18, 20 a movable body supported inside the fixed body 18, and a hook-shaped portion at the tip. 21 is configured. Reference numeral 22 is a shaft for movably supporting the movable body 20 on the fixed body 18, and 23 is the long groove 1 of the fixed body 18.
9 is a movable shaft which moves along 9 and 24 is a coil spring which is wound and supported in the vicinity of the center of the shaft 22 and has a V-shaped leg portion at its tip, and the leg portion at one end is constantly movable. Is configured to be urged in the hanging direction.

Next, the opening / closing of the opening / closing frame in the above-described high ceiling lighting device will be described. When the pressing pin 25 protruding from the lower surface of the opening / closing frame 16 of the lighting fixture supported on the high ceiling is pressed by a long-sized operating rod, for example, the movable shaft 23 is pressed by the pressing pin 25 and the arc-shaped long groove 19 is formed. As the movable piece 20 moves, the hook-shaped portion 21 is disengaged from the support portion 15, and the opening / closing frame 16 is opened from the luminaire main body 11. At the same time when the open / close frame 16 is opened, the light source 14 mounted in the socket 13 faces downward. At this stage, the light source is replaced with a long jig. After that, when a part of the open / close frame 16 is pushed up by the operating rod, the hook-shaped portion 21 of the movable body 20 engages with the support portion 15, and the light source replacement work is easily completed.

Next, another embodiment will be described with reference to FIG.
The opening / closing mechanism is the same as that shown in FIGS. 1 to 5, and the light source 14 is arranged vertically with respect to the luminaire main body 11. When the opening / closing frame 16 is opened, the light source can be replaced.

[0010]

According to the invention described above, it is possible to easily open and close the opening and closing frame of the lighting fixture supported on the high ceiling.
There is a special effect that the lamp can be easily replaced.

[Brief description of drawings]

FIG. 1 is a partially enlarged side view of a high ceiling lighting device of the present invention.

FIG. 2 is a partially enlarged side view showing a state in which a movable body has moved from FIG.

FIG. 3 is a partially enlarged perspective view of the high ceiling lighting device of the present invention.

FIG. 4 is a side view of a high ceiling lighting device of the present invention.

FIG. 5 is a side view when the opening / closing frame is opened from FIG.

FIG. 6 is a side view showing another embodiment of the high ceiling lighting device of the present invention.

FIG. 7 is a partially enlarged side view of a conventional high ceiling lighting device.

[Explanation of symbols]

 11 Lighting Equipment Main Body 12 Socket Supporting Plate 13 Socket 14 Light Source 15 Supporting Part 16 Opening / Closing Frame 17 Translucent Plate 18 Fixed Body 19 Long Groove 20 Movable Body 21 Hook-like Part 22 Axis 23 Movable Axis 24 Coil Spring

Claims (1)

[Claims] 1. A high ceiling lighting device in which an opening / closing frame formed by a translucent plate is openably and closably supported at the lower end of a lighting fixture body having a light source installed therein. A support part is provided in the vicinity, and a movable body having a hook-shaped part at the tip is axially attached at a location corresponding to the support shaft of the open / close frame, and an arc-shaped long groove is formed in the fixed body The shaft is movably arranged, and the movable shaft can be pressed from the lower end.By moving the movable shaft along the long groove, the hook-shaped part of the movable body is hung on the support part. A lighting device for high ceilings characterized by the above.