JP2578949Y2 - Variable direction lighting fixtures - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a directional lighting device.

[0002]

2. Description of the Related Art FIGS. 5 to 7 show a conventional example. That is, this variable-direction lighting device is, for example, a downlight, and has a lamp socket 70 and its lamp socket 70.
A lamp body 73 having a shade 72 covering the rear and peripheral surfaces of a lamp 71 mounted on the lamp 71, and a frustum-shaped frustum arranged so that a small opening 74 faces the front end of the shade 72 on the lamp optical axis L. A lamp body 73 is rotatably held at the edge of the small opening 74 at a position of one edge of the front end of the shade 72 via a shaft 75 parallel to the circumferential direction of the edge. The small opening 74 is formed obliquely with respect to the axial direction M of the auxiliary reflector 76 so that the turning side of the lamp body 53 is separated from the shade 72.

[0003] 77 is an instrument body, 78 is a frame, 79 is a mounting spring, 80 is a ceiling, 81 is a reflector, and 82 is an arm.
This variable-direction lighting device has a lamp body 7 around an axis 75.
The illumination direction can be changed by rotating from the state of FIGS. 5 and 6 to the state of FIG. 7 so that the lamp optical axis L of No. 3 is inclined with respect to the axial direction M of the auxiliary reflection plate 76. In this case, the small opening 74 of the auxiliary reflector 76 is cut obliquely with respect to the axial direction M so that the shade 72 does not hit the auxiliary reflector 76 so that the lamp body 73 obtains a sufficient rotation angle.

[0004]

However, in this variable direction lighting apparatus, the light Q of the lamp 71 leaks to the outside because of the large gap N formed between the small opening 74 and the shade 72. Poor efficiency, auxiliary reflector 7 from below
When looking up at 6, the inside of the appliance main body 77 is seen round from the gap N, so it is unsightly in design. Further, since the shade 72 is recessed, the operability when rotating the lamp body 73 is poor. Further, as shown in FIG. 7, since the light P is irradiated in a direction other than the direction of the lamp optical axis L of the lamp 71, there is a disadvantage that extra glare occurs.

Accordingly, an object of the present invention is to provide a variable-direction lighting device which eliminates a large gap in a small opening, has good device efficiency and operability, can prevent glare, and can not see the back side of the shade. It is.

[0006]

SUMMARY OF THE INVENTION A variable direction lighting apparatus according to the present invention includes a lamp body having a lamp socket, a shade for covering a back surface and a peripheral surface of a lamp mounted on the lamp socket, and a lamp light of the lamp. A frustum-shaped cylindrical body fixedly disposed so that the small opening faces the front end of the shade on the axis, and is parallel to the circumferential direction of the one edge at the position of one edge of the front end of the shade. An auxiliary reflector that rotatably holds the lamp body at an edge of the small opening via a shaft, wherein the small opening is configured such that a turning side of the lamp body is separated from the shade. In the variable direction lighting device formed obliquely to the axial direction of the auxiliary reflector, the lamp optical axis is parallel to the axial direction of the auxiliary reflector, approaching the edge of the small opening, and Due to the rotation of the lamp body, The possible entry to the inner hood portion of the plate,
It extends from the opening end of the shade.

[0007]

According to the structure of the present invention, when the lamp optical axis of the lamp body is positioned on the axis of the auxiliary reflector, the lamp is illuminated in the axial direction by turning on the lamp, and the hood section is continuously connected to the small opening. Since the conventional large gap is eliminated, the conventional light leakage is prevented, the efficiency of the fixture is improved, and the back side of the shade is not visible through the auxiliary reflector, so that the design is also good. Further, when the lamp body is rotated, the hood is close to the auxiliary reflector, so that the operability is improved. In addition, the direction of the lamp's optical axis is tilted with respect to the axial direction of the auxiliary reflector due to the rotation of the lamp body, and the irradiation direction is changed. The glare can be cut and the equipment efficiency can be increased.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. That is, the variable direction lighting apparatus includes the lamp body 1 and the auxiliary reflector 2. The lamp body 1 has a lamp socket 3 and a shade 5 that covers the rear and peripheral surfaces of a lamp 4 mounted on the lamp socket 3. The shade 5 of this embodiment has a ceiling portion 16 having a cylindrical shape and a hole 15 formed at the center, and the inner surface is finished with a silver mirror surface. In addition, the neck 18 of the trumpet-shaped reflector 17 is attached to the hole 15 in the fixture 1.
An arm 12 using a substantially inverted U-shaped angle is attached to the outer surface of the shade 5, and a lamp socket 3 facing the hole 20 of the reflector 17 is attached to the center of the arm 12. And the tip of arm 12 is shade 5
Extends on both sides of one edge of the front end.

The auxiliary reflector 2 is provided with a lamp optical axis L of the lamp 4.
A frustum-shaped cylindrical body fixedly arranged so that the small opening 13 faces the front end of the shade 5, and which is parallel to the circumferential direction of the one edge at the position of one edge of the front end of the shade 5. The lamp body 1 is rotatably held at the edge of the small opening 13 via the shaft 6. In the embodiment, the shaft 6 is passed through the distal end of the arm 12 and one edge of the small opening 13 of the auxiliary reflector 2, and the lamp body 1 is held by the auxiliary reflector 2 by friction locking, and the frictional resistance is reduced. Thus, the lamp body 1 can be rotated.

Further, the small opening 13 is formed in the axial direction M of the auxiliary reflection plate 2 so that the turning side of the lamp body 1 is separated from the shade 5.
1 and the lamp optical axis L is parallel to the axial direction M of the auxiliary reflecting plate 2 and approaches the edge of the small opening 13 in FIG. The hood portion 14 which can enter the inside of the auxiliary reflection plate 2 as shown in FIG. The hood portion 14 is also formed integrally with the shade 5 and has a silver mirror finish.

Reference numeral 7 denotes a tubular appliance main body, to which a bent portion 9a at the inner peripheral end of the frame 9 is fixed to an inner flange 8 at the lower end. The lamp body 1 and the auxiliary reflector 2 are inserted into the fixture body 7, and the lower end of the auxiliary reflector 2 is engaged with the inner collar 8. Then, it is attached to the embedded hole of the ceiling (not shown) by the attachment spring 10. According to this embodiment, when the lamp optical axis L of the lamp main body 1 is located in the axial direction M of the auxiliary reflector 2, the lamp 4 is illuminated in the axial direction M by turning on the lamp 4, and the hood is formed in the small opening 13. Since the portion 14 is continuous and the conventional large gap is eliminated, the conventional light leakage is prevented and the light R reflected by the hood portion 14 is directed in the irradiation direction as shown in FIG. Since the back side of the shade 5 is not visible through 2, the design becomes good. In addition, when the lamp body 1 is rotated, the operability is improved because the hood portion 14 is close to the auxiliary reflection plate 2. Further, the direction of the lamp optical axis L of the lamp 4 is changed by the rotation of the lamp body 1 so that the auxiliary reflector 2
However, as shown in FIG. 3, the light S other than the irradiation direction is reflected in the irradiation direction by the hood portion 14 as shown in FIG. Can be

[0012]

According to the variable direction lighting device of the present invention, when the lamp optical axis of the lamp body is positioned in the axial direction of the auxiliary reflector, the lamp is illuminated in the axial direction by turning on the lamp, and the small opening is formed. Since the conventional hood portion is continuous and the conventional large gap is eliminated, the conventional light leakage is prevented, the efficiency of the apparatus is improved, and the back side of the shade is not visible through the auxiliary reflector, so that the design is good. Further, when the lamp body is rotated, the hood is close to the auxiliary reflector, so that the operability is improved. In addition, the rotation of the lamp body causes the direction of the optical axis of the lamp to incline with respect to the axial direction of the auxiliary reflection plate, thereby changing the irradiation direction. However, light other than the irradiation direction is reflected by the hood in the irradiation direction, which is unnecessary in the conventional method. There is an effect that glare can be cut and the efficiency of the device can be increased.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a vertical irradiation state of an embodiment of the present invention.

FIG. 2 is a perspective view showing the auxiliary reflector and the lamp body.

FIG. 3 is a cross-sectional view of a state where a lamp body is inclined.

FIG. 4 is a perspective view showing the auxiliary reflector and the lamp body.

FIG. 5 is a cross-sectional view of a conventional example in a vertical irradiation state.

FIG. 6 is a perspective view showing the auxiliary reflector and the lamp body.

FIG. 7 is a cross-sectional view of a state where the lamp body is inclined.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lamp main body 2 Auxiliary reflector 3 Lamp socket 4 Lamp 5 Seed 6 Axis 13 Small opening 14 Hood L Lamp optical axis M Axis direction

Claims (1)

(57) [Scope of request for utility model registration] 1. A lamp body having a lamp socket and a shade covering the rear and peripheral surfaces of a lamp mounted on the lamp socket, and a small opening facing a front end of the shade on a lamp optical axis of the lamp. A frustum-shaped cylindrical body fixedly arranged as described above, and at a position of one edge of the front end of the shade, the lamp main body is connected to the small opening through an axis parallel to the circumferential direction of the one edge. An auxiliary reflection plate rotatably held at an edge portion, wherein the small opening is formed obliquely with respect to an axial direction of the auxiliary reflection plate so that a rotation side of the lamp body is separated from the shade. In the variable direction lighting device, the lamp optical axis approaches the edge of the small opening in a state where the lamp optical axis is parallel to the axial direction of the auxiliary reflecting plate, and the lamp body rotates to move inward of the auxiliary reflecting plate. The accessible food section is A variable-direction lighting device extending from an opening end.