JP3043184B2 - lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device which is used by being embedded in a curved portion such as a round pillar or a wall having a curved surface.
In particular, the present invention relates to a lighting fixture capable of arbitrarily changing the curvature of a light-transmitting front panel.

[0002]

2. Description of the Related Art Hitherto, an embedded lighting device such as a guide light installed on a wall or a ceiling in a building includes a lamp, a housing for accommodating the lamp and other components, and a translucent cover for covering the front surface of the housing. The front panel is designed to have a flat structure to fit a flat wall.

[0003]

However, since the above-described conventional lighting fixture is designed to have a structure that fits on a flat surface, for example, as shown in FIG. When it is installed in the curved surface 2 of the lighting fixture 1 in a buried form, a step is generated between the front panel of the lighting fixture 1 and the curved surface 2, which is not preferable in design.

Therefore, conventionally, it is conceivable that the front panel of the lighting fixture 1 is formed in accordance with the curvature of the curved surface. However, if the manufacturing cost of the front panel increases and if the curvature of the curved surface changes, this problem may occur. A front panel having various curvatures must be prepared, and there is a problem of lack of reality.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lighting apparatus in which a light-transmitting front panel can be arbitrarily deformed in accordance with the curvature of a curved surface. Is to do.

[0006]

SUMMARY OF THE INVENTION The present invention provides a housing having at least one pair of side plates supported at one end so as to be swingable and having the other end close to and away from each other, an illuminating lamp provided in the housing, A light-transmitting front panel connected between the swinging ends of the plates, and a curvature adjusting mechanism for bending the front panel to an arbitrary curvature by moving the swinging end sides of the two side plates toward and away from each other. It is provided.

[0007]

By operating the curvature adjusting mechanism, when the both side plates are rocked in the direction approaching each other, the radius of curvature of the front panel is deformed in a decreasing direction, and the both side plates are rocked in the direction away from each other. Then, the radius of curvature of the front panel is deformed in an increasing direction. Therefore, it becomes possible to fit the front panel to the curved surface of the embedded portion of the lighting fixture.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an overall configuration diagram of a lighting device according to an embodiment of the present invention.

In FIG. 1, reference numeral 10 denotes a housing which can be embedded in a round pillar, a wall having a curved surface, or the like. The housing 10 includes a rectangular back plate 11 and a back plate 11.
And a pair of left and right side plates 13 and 14 which are attached to both ends of each of them by a pin 12 so as to swing.

Reference numeral 15 denotes a side plate 13, 1 in the housing 10.
4 are twin-type illuminating lamps, each of which is arranged so as not to hinder swinging of the side plates 13 and 14.

Reference numeral 16 denotes a flexible front panel formed of a translucent material such as acrylic which covers the front opening of the housing 10. The front panel 16 has a rectangular shape longer than the rear plate 11, and The both ends of the front panel 16 are rotatably and removably connected to the swinging end portions of the side plates 13 and 14 by connection fittings 17 as shown in FIG. Also, slits 16a for heat radiation are formed on both left and right end portions of the front panel 16.

Reference numeral 18 denotes a curvature adjusting mechanism for adjusting the curvature of the front panel 16 according to a curved surface such as a round pillar. The curvature adjusting mechanism 18 is a turn adjusting mechanism arranged between the side plates 13 and 14 in a state of being inserted. Consists of a buckle.

When the luminaire according to the present invention configured as described above is installed on, for example, a round pillar, a space in which the housing 10 can be embedded in the round pillar is formed in advance.
Next, by rotating the nut portion 18a of the turnbuckle, which is the curvature adjusting mechanism 18, the curvature adjusting mechanism 1 is rotated.
The turnbuckle 8 is extended or contracted.

As a result, the left and right side plates 13 and 14 are rotated about the pin 12 in a direction away from or approaching. That is, when the left and right side plates 13 and 14 are rotated in a direction away from each other, the radius of curvature of the front panel 16 changes in a direction to increase, and the left and right side plates 13 and 14 rotate in a direction approaching each other. Then, the radius of curvature of the front panel 16 decreases. As a result, the curvature of the front panel 16 can be adjusted to the curvature of the round pillar.

Next, when the curvature adjustment of the front panel 16 is completed, a cover member (not shown) formed from a metal plate or the like is provided.
Are attached to the upper and lower surfaces of the housing 10. The lighting fixture assembled in this manner is mounted by being inserted into the embedded space formed in a round pillar from the back plate 11 side.

The illumination lamp 15 is converted by the front panel 1
6 is removed. In the present embodiment as described above, the curvature of the front panel 16 is changed by operating the curvature adjusting mechanism 18 to rotate the swinging end sides of the left and right side plates 13 and 14 toward or away from each other. Therefore, the front panel 16 can be made to conform to a curved surface such as a round pillar. Along with this, designs such as round pillars and walls in which lighting fixtures are embedded are not damaged.

Further, since the front panel 16 can be deformed according to the curved surface of the buried portion, various front panels corresponding to the curved surface of the buried portion are not required as in the prior art, and the cost of the front panel can be reduced. In addition, a variety of lighting equipment can be provided.

The present invention is not limited to the configuration shown in the above embodiment, and various modifications are possible without departing from the scope described in the claims. For example, the curvature adjusting mechanism 1
8 is not limited to the structure provided inside the housing 10, and the shape of the housing 10 may be V-shaped.

The illuminating lamp 15 disposed in the housing 10 is not limited to the twin type shown in the above embodiment.
It may be a fluorescent lamp. In this case, the fluorescent lamp is the housing 1
It is desirable to dispose on the cover member of No. 0.

[0020]

As described above, according to the present invention, a pair of opposing side plates constituting the housing are provided so as to be swingable, and both ends of the translucent front panel are provided between the swinging ends of the both side plates. And the curvature of the front panel can be changed according to the buried member by moving the both side plates in the direction of approaching and separating by the curvature adjustment mechanism, so that the lighting fixture will not lose the design of the curved surface like a round pillar Therefore, it is possible to provide a lighting device adapted to a curved surface at low cost.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a lighting fixture according to the present invention.

FIG. 2 is a plan view of a main part showing one side of a connection structure between a front panel and a side plate in the embodiment.

FIG. 3 is an explanatory view showing an installation state of a conventional lighting fixture.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Housing 11 Back plate 13, 14 Side plate 15 Illumination light 16 Front panel 18 Curvature adjustment mechanism

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F21S 8/00 F21S 4/00 F21V 17/02

Claims (1)

(57) [Claims] 1. A housing (10) having at least one pair of side plates (13, 14), one end of which is swingably supported and the other end of which is close to and away from each other, and an illuminating lamp disposed in the housing (10). (15), a light-transmitting front panel (16) connected between the swinging ends of the side plates (13, 14), and a direction in which the swinging end sides of the side plates (13, 14) approach and separate from each other. And a curvature adjusting mechanism (18) for bending the front panel (16) to an arbitrary curvature by moving the lighting apparatus.