JP2718278B2 - Variable directional lighting system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motorized variable directional lighting device for illuminating downlights and spotlights in houses and stores.

[0002]

2. Description of the Related Art FIG. 4 is a sectional view showing a conventional variable directional lighting device disclosed in Japanese Utility Model Laid-Open Publication No. Sho 62-4021, in which (1) is a main frame and (2) is a sectional view of the same. Body frame (1)
(3) is a handle attached to the lamp, (4) is a ceiling, and (5) is a main body, which is attached to the ceiling 4 together with the main body frame. Since the lamp (2) of the variable directional lighting device configured as described above is held by the body frame (1) so as to be able to turn, the irradiation direction is changed by operating the handle (3) by hand. It is supposed to be.

[0003]

The conventional variable directional lighting device is constructed as described above, and it is necessary for a person to directly operate the lamp with his / her hand to change the irradiation direction. There is a danger of burns, and it can be mounted on relatively high places, such as the ceiling, so that the lighting fixture must be turned using a step platform, especially for people with physical disabilities or older people. Were difficult to handle. Although not shown in detail in terms of structure, it is necessary to provide a means such as elastic retention to prevent the lamp from being easily deflected by an eccentric load of the lamp body, and there is a problem that the management is troublesome. Was.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and is a variable directional lighting device capable of safely and easily changing a desired irradiation direction without manually operating a lamp body. It is intended to provide a device.

[0005]

In order to achieve the above object, a variable directional lighting device according to the present invention is provided with a lamp body forming a part of a spherical surface, which is disposed in an opening of a device body. The two semicircular arms, which are rotatably held by the horizontal ring and are outside the lamp body and are orthogonal to each other, are tilted using driving means about both ends thereof, and the semicircular arm is The main configuration is to change the direction of the lamp body through a support pin inserted through the guide slit.

[0006]

By tilting the two semicircular arms orthogonal to each other using the driving means, the position of the support pin can be displaced and the irradiation direction can be changed. By controlling the drive means therefore, irradiation direction is freely deflected.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, (11) is a main body of the device having an opening in the center, (13) is a lamp frame forming a part of a spherical shell, and a light emitting opening is provided at a lower portion and a substantially same diameter as the upper portion. Opening is formed. (14) is a U-shaped lamp body member attached to the lamp body frame (13), (15) is a detent projection protruding from the lamp body member, (16) is a lamp socket, 17) is a lamp. The lamp body (12) is constituted by the above (13) to (17). Reference numeral (18) denotes a support pin for restricting the deflection of the lamp body (12), and protrudes outward from the upper side of the lamp body.
(19) is a semi-circular inner arm, which is formed by bending a band plate into a semi-circular shape concentric with the lamp frame, and a common axis (22) is a pair of support shafts passing through the rotation center of the lamp body. Both ends are supported by (32) and (33) to be tiltable. (21) is the inner arm (1
A semi-circular arm which is orthogonal to 9) and has the same structure as the arm, and has a common axis (22) supported at both ends by a pair of support shafts (32) and (33) passing through the center of rotation of the lamp body. Have been. Guide slits (20) and (23) are formed in the inner and outer semicircular arms in the longitudinal direction, respectively, and the support pins (18) are slidably inserted through the guide slits (20) and (23). I have.

(24a) is an upper ring of two horizontal rings,
(24b) is a lower ring having a rectangular cross section made of a synthetic resin having a heat resistance of, for example, 150 ° C. or more, and having an inner diameter slightly smaller than the diameter of the lamp body frame (13), and disposed at an opening of the apparatus body. With this arrangement, the lamp body frame (13) is rotatably held. (25) is a ring frame to which the upper ring (24a) is attached, which is attached to the opening of the apparatus main body, and
(24b) is mounted on a step formed on the inner wall side of the opening of the apparatus body (11). (26) is a motor, and (27) is a mounting plate of the motor (26), which is mounted on the main body (11). (28) a crank fixed to the shaft of the motor (26),
(29) is a connecting rod, (30) is a lever, (31) is the above lever
(30), a connecting pin for connecting the connecting rod (29) and the crank (30). The support shaft (32) is fixed to a lever (30), inserted through a bearing portion provided in the main body (11), and has a shaft end fitted to an end of the inner arm (19). The support shaft
(33) is located symmetrically with respect to the support shaft (32) with respect to the center of the lamp body (12). A set of driving means (34) in the above (26) to (33)
The same driving means is provided on the outer arm (21). (35) in the figure is a mounting frame of the main body. FIG. 3 is a side view showing the positional relationship between the driving means (34) and the lamp body (12).

Next, the operation of the variable directional lighting device configured as described above will be described. First, in the driving means of one embodiment as shown in FIG. 3, for example, when the motor (26) is rotated in one direction and continuously operated, the crank (28) rotates, but the connecting rod (29) , The lever (30) reciprocates at a predetermined angle θ. Therefore, the inner arm (19) fitted to the support shaft (32) via the lever (30) performs the reciprocating tilt at the same angle. However, since the support pin (18) is slidably inserted into the guide slit (20) of the inner arm, the lamp (12) rotates the lamp frame (13) as the inner arm reciprocates. Angle θ centered on moving center
Reciprocate in the range of. That is, the irradiation direction is changed. Is about 60 degrees .

The above operation is for the inner arm (19), but is the same for the outer arm (21). The lamp body (12) can be rotated by driving these two arms mutually or simultaneously. If this is on a plane, it is possible to irradiate any position in the range irradiated at an irradiation angle of 60 degrees .

The above description is for the case where the motor (26) is driven continuously, but usually it is intermittent to obtain a desired irradiation position. Further, since the tilting and rotating lamp body frame (13) is held by two horizontal rings made of synthetic resin, the assembling is easy and the operation is smooth.

If the motor of the above-described variable directional lighting device is controlled by remote control operation or the like, it is not necessary to directly operate the lamp body by hand. Further, a transmitter can be provided in the illumination target unit, and the operation of the motor can be controlled by calculating the position of the illumination target unit based on a signal from the transmitter.

In the above embodiment, the motor has been described as one-way rotation and the reciprocating motion by the link mechanism has been described. However, the motor may be rotated forward and reverse, or the motor may be directly connected to the support shaft to rotate the motor forward and reverse. You may. Further, a rack, a pinion mechanism, or a cam mechanism may be used, and a driving device other than a motor may be used. The holding of the lamp body frame is not limited to a ring having a rectangular cross section, and a sufficient effect can be obtained with a circular, trapezoidal, L-shaped or the like.

The same operation can be obtained by a method of holding the lamp body such as a two-supporting point, double structure gimbal mechanism, or a method of holding the lamp body frame with two parts. Further, the support pin may not be a single structure pin, but may be a double structure pin or the like. Further, the variable directional lighting device according to the present invention can be used as a single unit or as a complex in combination with another lighting device.

[0015]

As described above, according to the present invention, the two semicircular arms, which are perpendicular to each other, are tilted using the driving means, and the lamp body is freely rotated in conjunction with the tilting. In addition, since the lamp body is held, it is not necessary to directly change the direction of the lamp body by hand, and the desired irradiation direction can be obtained safely and easily. Further, by connecting the driving means to an appropriate control device, the lighting operation can be automated. Further, according to the present invention, since the lamp body forming a part of the spherical surface is held by the two horizontal rings, there are effects such as simplification of the device and easy assembling.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a variable direction lighting device according to an embodiment of the present invention.

FIG. 2 is a plan view of a variable direction lighting device according to an embodiment of the present invention.

FIG. 3 is a side view of a driving unit of the variable directional lighting device according to the embodiment of the present invention.

FIG. 4 is a longitudinal sectional view of a conventional variable direction lighting device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Main body 12 Light body 13 Light body frame 18 Support pin 19 Inner arm 21 Outer arm 20, 23 Guide slit 22 Axis 24a, 24b Horizontal ring 32, 33 Support shaft 34 Drive means

Claims (2)

(57) [Claims] 1. A lamp body rotatably held in an opening of a device main body and having a light projecting opening at a lower part, and a common axis located outside both sides of the lamp body and having a common axis. A semi-circular inner arm whose both ends are tiltably supported by a pair of pivots passing through the center of rotation, a semi-circular outer arm orthogonal to the inner arm and having the same structure as this arm, and respective arms A drive means for tilting the arm, and a guide slit through which a support pin protruding outwardly of the lamp body is slidably formed is formed in the longitudinal direction of each of the arms. Lighting equipment. 2. The lamp body according to claim 1, wherein said lamp body forms a part of a spherical surface and is held by two horizontal rings arranged in parallel and opposed to each other in an opening of said apparatus body. 2. The variable directional lighting device according to 1.