JPH0734324B2 - Recessed luminaire - Google Patents

Description

TECHNICAL FIELD The present invention relates to an embedded luminaire, and more particularly to light distribution control of the embedded luminaire.

[Conventional technology]

Conventionally, in an embedded lighting fixture such as a downlight shown in FIG. 4, the fixture main body 3 is inserted into an embedded hole 2 formed in a ceiling 1 which is a mounting surface, and a fixture 4 made of a leaf spring or the like is used for this. The fixture main body 3 is attached to the ceiling 1, and the lamp 6 mounted in the lamp socket 5 mounted on the fixture main body 3 is covered with the reflector 8 placed on the frame body 7 suspended from the fixture main body 3 to control the light distribution. ing.

In such an embedded luminaire, the light distribution is fixed to a specific light distribution for each luminaire depending on the shape of the reflector and the position of the lamp, and once it is mounted on the mounting surface such as the ceiling. To change the light distribution, it was necessary to replace the reflector, lamp, or luminaire.

[Problems to be Solved by the Invention]

However, with the embedded lighting fixture shown in FIG. 4, it is difficult to change the light distribution of the lighting fixture each time the object to be irradiated is changed, and it takes time and money to change the light distribution. As a tool, many product numbers are required, and there has been a problem that management costs increase.

The present invention has been made in view of the above background, and an object of the present invention is to provide an embedded lighting fixture having a simple configuration and variable light distribution.

[Means for Solving the Problems]

In the embedded lighting fixture according to the present invention, a lamp socket in which a lamp is mounted and a reflector surrounding the lamp are arranged in a fixture main body having a lower end opened, and the fixture main body is embedded and mounted in a mounting hole formed in a mounting surface. In the embedded luminaire, the reflector is composed of a small reflector and a large reflector whose central axes are arranged substantially coaxially, and the large reflector is located at the lower end opening side of the main body of the fixture and the small reflector is The large reflector is positioned near the upper end opening and fixed to the fixture body, and the lamp is arranged in the fixture body so as to be movable substantially along the central axis direction of the reflector.

〔Example〕

1 to 3 show an embodiment of the present invention, which will be described below with reference to the drawings.

In this embedded lighting fixture, as in the above-mentioned conventional example, the fixture main body 3 is inserted into the embedded hole 2 formed in the ceiling 1 which is the attachment surface, and the fixture main body 3 is attached by the fixture 4 composed of a leaf spring or the like. Is mounted on the ceiling 1, and the lamp 6 mounted on the lamp socket 5 mounted on the fixture body 3 is covered with the reflector 8 having the lower end attached to the frame body 7 provided on the lower end of the fixture body 3 to control the light distribution. ing.

The instrument body 3 is composed of a tubular lower body 9 and an upper body 10 formed into a substantially gate shape by bending a rectangular plate attached to the upper end of the lower body 9. A pair of attachments 4 are attached on both sides of one diameter position. On the upper surface of the upper main body 10, two guide shafts 11 are provided so as to protrude downward at positions symmetrical with respect to the center, and an adjusting tool is provided substantially at the center.
Twelve are mounted facing down. A plate-shaped socket base 13 is provided at the lower end of the adjusting tool 12 and guide shafts are provided near both ends thereof.
It is attached by inserting 11 respectively.

The adjusting tool 12 includes an adjusting body 14 having a vertical female thread opening on the upper surface and having a lower end attached to a socket base 13, and a male screw which is inserted into the upper body 10 and is screwed into the female thread of the adjusting body 14. An adjusting screw 15 having a head disposed on the upper surface of the upper main body 10, and a pressing spring formed of a compression coil spring having the adjusting body 14 and the adjusting screw 15 inserted between the upper main body 10 and the socket base 13. 16
It consists of and. The adjuster 12 has a socket base 13 guided by the guide shaft 11 as the adjuster 14 moves up and down along the axis of the adjust screw 15 by rotating the adjust screw 15.
Can be set to any position up and down, and the adjusting spring 15 is not loosened by the pressing spring 16 interposed between the upper body 10 and the socket base 13 to maintain the adjusted position. ing.

A lamp socket 5 is attached to the lower surface of the socket base 13 so as to be positioned on the substantially central axis of the fixture body 3, and a lamp 6 such as a halogen lamp is attached to the lamp socket 5. The reflector 8 is fixed to the reflector mount 17 and is fixed to the upper body.
It is attached to 10 and has a lamp 6 and a lamp socket 5 in the center.
A small reflection plate 18 having an opening through which the small reflection plate 18 is attached, and a large reflection plate 19 having an opening inserted near the lower end of the small reflection plate 18 at the lower edge of the frame 7 attached to the frame 7.
The large reflecting plate 18 and the large reflecting plate 19 have different reflecting surface shapes.

In this embedded luminaire, as shown in FIGS. 2 and 3, the lamp 6 is operated together with the socket base 13 by operating the adjusting tool 12.
Moves to a position in which the small reflecting plate 18 and the large reflecting plate 19 appear in the front and rear, so that the state of the reflected light from the lamp 6 at the small reflecting plate 18 and the large reflecting plate 19 changes depending on the position. It is possible to reliably obtain the light distribution set by the small reflection plate 18 or the large reflection plate 19, respectively, and the shape of the instrument body etc. is not limited to the configuration of the above-mentioned embodiment, but other configurations. May be.

〔The invention's effect〕

Since the present invention is configured as described above, it is not necessary to replace the lighting fixture or the reflection plate, and it is possible to provide a lighting fixture with a variable light distribution with a simple configuration.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention. FIG. 1 is a front view of a half section, and FIGS. 2 and 3 show a reflector and a lamp in a state in which an adjusting tool is operated. It is a schematic diagram which shows a positional relationship. FIG. 4 is a front view of a half section showing a conventional example for the present invention. 1 ... Ceiling, 2 ... Embedding hole, 3 ... Instrument body, 4 ... Fixture, 5
… Lamp socket, 6… Lamp, 7… Frame, 8… Reflector, 11… Guide shaft, 12… Adjuster, 13… Socket stand, 14…
Adjusting body, 15 ... Adjusting screw, 16 ... Pressing spring, 17 ... Reflector mount, 18 ... Small reflector, 19 ... Large reflector.

Claims (1)

[Claims] 1. A lamp socket in which a lamp is mounted and a reflection plate surrounding the circumference of the lamp are provided in a fixture body having a lower end opened,
In an embedded lighting fixture in which the main body of the fixture is embedded in an embedded hole formed in the mounting surface, a reflector is composed of a small reflector and a large reflector whose central axes are arranged substantially coaxially, and a large reflection is achieved. The plate is located on the opening side of the lower end of the fixture body, and the small reflector is located near the top opening of the large reflector plate and fixed to the fixture body respectively, and the lamp can be moved substantially along the central axis direction of the reflector plate. An embedded luminaire characterized by being disposed in.