JP2884198B2 - 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 capable of changing the direction of light irradiation to various directions.

[0002]

2. Description of the Related Art Japanese Patent Laid-Open Publication No.
As disclosed in Japanese Patent Publication No. 188814, there is known a lamp provided with a lamp so as to be rotatable around an axis of one rotating shaft so as to be able to change a light irradiation direction.

[0003]

However, in such a conventional configuration, since the lamp only rotates around one axis, there is a problem that the conversion range of the light irradiation direction is narrow.

The present invention has been made in view of such a point, and an object of the present invention is to provide a lighting apparatus capable of converting a light irradiation direction over a wide range having a certain spread. Is to do.

[0005]

According to the present invention, in order to achieve the above object, a shaft is supported in a state in which the shaft can be tilted forward, backward, left and right, and a lamp having a lamp is attached to a lower end of the shaft. A first slider reciprocally movable in the left and right directions and a second slider reciprocally movable in the left and right directions are vertically arranged opposite to each other, and each of the first and second sliders is perpendicular to the moving direction thereof. Are formed facing each other, the shaft is inserted through these long holes, the shaft is inclined by the reciprocating operation of the first and second sliders, and the lower surface of the frame is substantially hemispherical. A recess having an outer peripheral surface corresponding to the curved surface of the concave portion and a lamp provided with a lamp, and a shaft is attached to the upper end portion of the lamp device. Protruding thereabove from said opening,
A slide guide plate having an inner surface corresponding to the curved surface of the concave portion is attached to the shaft, and the slide guide plate is brought into contact with an outer peripheral surface of an upper end portion of the concave portion to support the lamp in the concave portion, and The plate is pressed against the outer peripheral surface of the concave portion by a leaf spring, and in this state, the shaft is inclined forward, backward, left and right.

[0006]

When the shaft is tilted back and forth, the direction of illumination of the lamp is changed back and forth, and when the shaft is tilted left and right, the direction of illumination of the lamp is changed back and forth. Therefore, by selecting the angles of the front, rear, left and right inclinations of the shaft, it is possible to set the position of the irradiation direction of the lamp at any point within the rectangular area having a sufficiently large spread below the luminaire. .

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 6 show a first embodiment. In the drawings, reference numeral 1 denotes a chassis, and a shade 2 is attached to a lower surface of the chassis 1. Ring-shaped fluorescent lamps 3 and 3 are provided on the lower surface of the chassis 1, and a frame 4 is horizontally mounted at the center of the lower surface of the chassis 1.

As shown in FIGS. 2 and 3, a concave portion 5 which is substantially hemispherically concave is formed on the lower surface of the frame 4, and an opening 6 is formed at an upper end portion of the concave portion 5. A lamp 7 is provided. This lamp 7 has a reflective lamp 10 housed and held inside a substantially spherical cover 9 having an opening 8 on the lower surface. Specifically, a socket 11 is provided on the upper inside of the cover 9, and a reflective lamp 10 is mounted on the socket 11, and a light emitting portion 10 a at the lower end of the lamp 10 projects downward from the opening 8 of the cover 9. It is supported to be. The lower end of the lamp 7 is exposed below through an opening 12 formed in the center of the shade 2.

A hollow shaft 15 having a substantially square cross section is attached to the upper end surface of the cover 9.
Protrudes upward through the opening 6 of the concave portion 5, and the slide guide plate 1
6 is attached. The slide guide plate 16 is formed in a spherical shape having a curvature corresponding to the concave portion 5, and the slide guide plate 16 slidably comes into contact with the outer peripheral surface of the upper end portion of the concave portion 5. The recess 5 is supported in the recess 5 with a slight gap 17 formed between the recess 5 and the inner peripheral surface.

A plurality of leaf springs 20 are uniformly attached to the inner surface of the frame 1 at the outer periphery of the recess 5 and the slide guide plates 1 are mounted by the leaf springs 20.
6 is elastically pressed so as to press against the outer peripheral surface of the upper end of the recess 5 with an appropriate pressure.

Further, on the inner surface of the frame 1, the recess 5 is provided.
A plurality of columns 21 are uniformly provided vertically around the outer periphery of the support plate 2, and the support plate 2
2 are mounted horizontally, and guide grooves 23...
... are formed. 4, a pair of first and second sliders 25 and 26 are disposed inside the columns 21 so as to vertically overlap each other.

The first slider 25 on the upper side has both side edges slidably fitted in the guide grooves 23 on the upper stage of the columns 21 and is supported horizontally, and the second slider 26 on the lower side is Both side edges are slidably fitted in the lower guide grooves 24 and supported horizontally, and the first and second sliders 25 and 26 can slide in a direction intersecting at right angles to each other. ing. In the first and second sliders 25 and 26, elongated holes 27 and 28 which are long in a direction perpendicular to the sliding direction are formed so as to face each other. The shaft 15 is inserted into the space from below to above. A lead wire 29 for energizing the lamp 10 is inserted into the shaft 15.

A pair of motors 3 is provided on the upper surface of the support plate 22.
0, 31 are attached, and between the rotating shafts 30a, 31a of the motors 30, 31 and the sliders 25, 26, the rotational force of the rotating shafts 30a, 31a is applied to the sliders 2.
Crank mechanism 32, 33 for transmitting to and reciprocating to 5, 26
Is provided.

As shown in FIG. 5, a power cord 36 is led out from the upper surface of the chassis 1 through a cord holder 35, and the power cord 36 is hooked on the tip of the power cord 36 to seal it.
The power cord 36 is detachably connected to a ceiling surface 38 in the room via the hooking ceiling 37. A cylindrical sealing cover 40 is vertically movably locked on the outer circumference of the power cord 36 via locking pieces 41. Further, a decorative cylinder 42 is mounted on the outer circumference of the sealing cover 40 via locking pieces 43. Locked so that it can move up and down.

Then, the hanging ceiling 37 of the power cord 36 is connected to the ceiling surface 38 and the ceiling cover 4
After pushing the upper end of the power cord 36 upward and bringing the upper end into contact with the ceiling surface 38, as shown in FIG. When the decorative tube 42 is pulled down and brought into contact with the upper surface of the chassis 1, the lighting device can be supported in a so-called pendant style, and as shown in FIG.
If the length of the power supply cord 36 led out of the chassis 1 is adjusted by the cord holder 35 and the decoration tube 42 is disposed between the ceiling cover 40 and the upper surface of the chassis 1, the lighting fixture can be so-called directly attached. Can be supported.

As shown in FIG. 1, a remote control receiving section 45 is provided in a part of the shade 2. A remote control transmitter 46 for transmitting a predetermined signal to the remote control receiving section 45 is provided. The remote control transmitter 46 includes operation buttons 47a and 40 for light control operation for the lamps 3, 3, and 10.
47b and operation buttons 48a and 48b for drive control of the motors 30 and 31 are provided.

In the lighting fixture thus configured,
When the remote control transmitter 46 is pressed toward the remote control receiver 45 and the operation button 48a is pressed, one of the motors 30 is started to rotate the rotating shaft 30a, and the rotating force is transmitted to the first slider 25 via the crank mechanism 32. This is the first
Slider 25 reciprocates in the front-rear direction in FIG. By the reciprocating movement of the first slider 25 in the front-rear direction, the shaft 1 inserted through the long holes 27 and 28 is moved.
5 are pressed on both side edges of the long hole 27 and the other long hole 28 is pressed.
Move along and lean back and forth.

The shaft 15 is supported by the contact between the slide guide plate 16 and the concave portion 5, so that the shaft 1
When the 5 is inclined, the slide guide plate 16 slides on the upper end surface of the recess 5. Since the lamp 7 is attached to the lower end of the shaft 15, the lamp 7 is also inclined according to the inclination of the shaft 15. Here, since the inner surface of the slide guide plate 16, the outer peripheral surface of the concave portion 5, and the outer peripheral surface of the lamp 7 have the same curved surface, the lamp 7 is inclined about the center point p of the lamp 7 shown in FIG. The irradiation direction of the lamp 10 with respect to the front-back direction is changed by this inclination.

In this way, when the lamp 7 is inclined at a desired angle with respect to the front-back direction, the pressing operation of the operation button 48a is released. As a result, the motor 30 is stopped, and the lamp 7 is set at the desired inclination angle.

Next, the other operation button 48b is pressed. In response, the other motor 31 is started to rotate the rotating shaft 31a, and this rotational force is transmitted to the second slider 26 via the crank mechanism 33, and the second slider 2
6 reciprocates in the left-right direction in FIG. The left and right reciprocal movement of the second slider 26 causes the long hole 2
While the shaft 15 passing through the insides 7 and 28 is inclined in the front-back direction, the shaft 15 is pressed by both side edges of the long hole 28 and moves along one long hole 27 to be inclined right and left. Therefore, the lamp 7 is also inclined left and right, and the irradiation direction of the lamp 10 with respect to the left and right direction is changed. When the irradiation direction of the lamp 10 with respect to the left-right direction is directed to a desired direction, the operation button 4
8b is released. In response, the motor 31 is stopped, and the lamp 7 is set at the desired inclination angle. Further, in this state, if the one operation button 48a is operated, the inclination angle of the lamp 7 in the front-rear direction can be converted again.

As described above, the lamp 7 can be arbitrarily inclined in the front-rear direction and the left-right direction.
Can be set at any point within a rectangular area having a sufficiently large spread below the luminaire.

As described above, the lamp 7 is inclined to the front, rear, left and right. However, since the shaft 15 has a rectangular cross section, the lamp 7 does not rotate around the shaft 15, so that the lamp 7 does not rotate. When the lamp 10 is rotated with respect to the socket 11 for replacement,
The rotation of the lead wire 29 is prevented and the work can be performed efficiently. Further, since the lead wire 29 is inserted into the shaft 15 which does not rotate, the twisting of the lead wire 29 can be reliably prevented. There are advantages.

As shown by a chain line in FIG.
May be arranged at the center point p of the lamp. In such a case, the lamp 10a is always arranged at a fixed position regardless of the inclination of the lamp 7. In the above description, the motors 30 and 31 are operated alternately. However, the motors 30 and 31 may be operated simultaneously.

FIG. 7 shows a second embodiment of the present invention. In the second embodiment, a ball 50 is provided in the middle of a shaft 15 and a ball receiver 51 in which the ball 50 is attached to the frame 4. A lamp 7 having a cover 9 and a lamp 10 is provided at the lower end of a shaft 15, and the shaft 15 is moved back and forth with the ball 50 as a fulcrum by the operation of first and second sliders 25 and 26. It is designed to be inclined left and right. In addition, the ball 50 serving as a fulcrum of the inclination of the shaft 15 may be arranged above the sliders 25 and 26.

[0026]

As described above, according to the present invention, by selecting the inclination angle of the front, rear, left and right of the shaft,
There is the advantage that the lamp can be illuminated at any point within a range having a sufficiently large spread below the luminaire.

[Brief description of the drawings]

FIG. 1 is a front view of a lighting device according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the lighting fixture.

FIG. 3 is a perspective view of a disassembled state of the main part.

FIG. 4 is a plan view of the main part.

FIG. 5 is a sectional view showing a support structure of the lighting fixture.

FIG. 6 is a front view showing a supporting form of the lighting fixture.

FIG. 7 is a sectional view of a main part of a lighting device according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 4 ... Frame 5 ... Recess 6 ... Opening 7 ... Lamp 10 ... Lamp 15 ... Shaft 16 ... Slide guide plate 20 ... Leaf spring 25 ... First slider 26 ... Second slider 27 ... Elongated hole 28 ... Elongated hole

Continuation of front page (72) Inventor Koji Amada 180 Furuichi-cho, Maebashi-shi, Gunma Toshiba Kiki Co., Ltd. (58) Field surveyed (Int.Cl. ⁶ , DB name) 00 F21V 21/30

Claims (2)

(57) [Claims] 1. A shaft is supported in such a manner that it can be tilted forward, backward, left and right, and a lamp provided with a lamp is attached to a lower end portion of the shaft. And the second slider are vertically opposed to each other, and the first and second sliders are formed with long holes facing each other in a direction perpendicular to the moving direction thereof. A lighting device, wherein the shaft is inserted through the shaft and the shaft is inclined by reciprocating movement of the first and second sliders. 2. A lamp having a substantially hemispherical concave portion formed on a lower surface of a frame, an opening formed at an upper end portion of the concave portion, an outer peripheral surface corresponding to a curved surface of the concave portion in the concave portion, and a lamp having a lamp. A shaft is attached to the upper end of the lamp and protrudes upward from the opening, and a slide guide plate having an inner surface corresponding to the curved surface of the recess is attached to the shaft, and the slide guide plate is attached to the upper end of the recess. Supporting the lamp in the recess by contacting the outer peripheral surface of the portion;
A lighting fixture characterized in that the slide guide plate is pressed against the outer peripheral surface of the concave portion by a leaf spring, and the shaft is inclined forward, backward, left and right in this state.