JPH06236704A - Lighting system - Google Patents

Abstract

PURPOSE:To provide a lighting system in which such work as new fitting and replacing of a bulb, changing of the used number of fluorescent lamps, cleaning of a luminaire or replacing of the whole luminaire can be easily and quickly performed in a stable state on a floor by anyone, and the luminance can automatically be raised and lowered. CONSTITUTION:A suspending wire 42 is connected to a luminaire 5. A raising and lowering device consisting of a winding drum 45; a motor 75; pulleys 72, 89 for rotating the winding drum 45 in any direction by the drive of the motor 25; and a belt is provided in the inside of a ceiling panel 1. The winding drum 45 is rotated in one direction by the drive of the motor 75 to wind the wire 42 on the winding drum 45, the luminaire 5 is raised and held in the using state where it is housed in the ceiling panel 1, and power supplying electric contacts provided on the luminaire 5 side and the ceiling panel 1 side are electrically connected to each other. The winding drum 45 is rotated in the other direction by the drive of the motor 75 as occasion demands, whereby the wire 42 can be delivered from the winding drum 45 to lower the luminaire 45.

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 automatically raising and lowering a lighting fixture, keeping it raised to the ceiling side during use, and lowering it when necessary.

[0002]

2. Description of the Related Art Conventionally, luminaires such as incandescent lamps and fluorescent lamps are generally installed in fixed positions on indoor ceilings.

[0003]

However, when the lighting fixture is fixedly installed at a fixed position on the ceiling as in the above-mentioned conventional example, a light bulb such as an incandescent light bulb or a fluorescent light is newly installed at the time of installation, or a light bulb after installation. In the case of replacing, or cleaning the lighting equipment, changing the number of fluorescent lamps used, or replacing the entire lighting equipment, you must use a stepladder to perform those operations. Not only is it laborious and inferior in workability, but it is also dangerous.

The present invention is to solve the above-mentioned conventional problems, in which the luminaire is held in a raised state on the ceiling side, and a new light bulb such as an incandescent light bulb or a fluorescent light is attached.
Allows the luminaire to be lowered when replacing light bulbs, cleaning luminaires, changing the number of fluorescent lamps used, or replacing the entire luminaire, so that these operations can be performed on a stable surface such as on the floor. So anyone can easily and quickly
Moreover, it is possible to provide a lighting device that can be safely operated, and further that can automatically perform lifting and lowering work of the lighting fixture so as to perform the lifting work of the lighting fixture quickly and efficiently. It is intended.

[0005]

The technical means of the present invention for achieving the above object is to provide a lighting fixture, a flexible wire member for suspending the lighting fixture, a ceiling side, or a lighting fixture side. A lifting device for selectively winding and unwinding the flexible linear member by driving a motor, and raising or lowering the lighting fixture to the ceiling side to hold it in use or lowering it. It is a thing.

The lifting device may include a winding cylinder that winds the flexible linear material so that the flexible wire material can be drawn out, and a motor that rotates the winding cylinder in either direction.

Alternatively, as the elevating device, a winding cylinder that winds the flexible linear material so that the flexible linear material can be paid out, a spring that urges the winding cylinder in a winding direction of the flexible linear material, and the flexible body. First and second feed rollers for feeding the elastic linear material from the winding cylinder against the elasticity of the spring or for winding the elastic linear material on the winding cylinder by using the elasticity of the spring; And a motor for rotating the feed roller in any direction, and it is preferable to use a constant force spring as the spring.

Further, the flexible linear member is formed of a material such as a wire for exclusive use of suspension other than the power cord, is provided on the side of the luminaire, and is electrically connected to the electrode of the light bulb. Can be provided on the ceiling side when the lighting fixture is raised, and can be configured to be electrically connected to an electric contact for power supply, which is connected to a power supply. Then, the ends of the flexible wire are connected to the lighting fixture side or the ceiling side by detachable locking means, and the electrical contacts for power supply on the lighting fixture side and the power supply on the ceiling side are connected. Or at least one of the electrical contacts of the above is formed in a ring shape, or one of the electrical contacts for power supply on the lighting equipment side and one of the electrical contacts for power supply on the ceiling side are formed in a ring shape, and the other of the above It is preferable to arrange at a plurality of locations on the circumference. In addition, it is preferable to provide a spring on the end portion side of the flexible wire member that pressurizes the electric contact for power supply on the side of the luminaire to the electric contact for power supply on the ceiling side when the luminaire is raised. .

Further, a power cord is used for the flexible linear member, and a slip ring provided on a rotatable winding drum, to which a metal wire of the power cord is connected, and a brush which is in contact with the slip ring are provided. The luminaire and the power source can be connected via the luminaire.

Further, it is preferable to drive and control the motor by remote control.

[0011]

According to the present invention constructed as described above, by driving the motor of the elevating device, the flexible linear member is automatically paid out and the lighting fixture raised to the ceiling side is lowered. Further, by driving the motor of the elevating device, the flexible linear material can be automatically wound up, and the lighting fixture can be raised to the ceiling side and held in the used state. In this way, the lighting fixtures that have been raised to the ceiling side and kept in use can be lowered as necessary, so that new bulbs such as incandescent bulbs and fluorescent bulbs can be newly installed, bulbs can be replaced, and lighting fixtures can be cleaned. It is possible to perform operations such as changing the number of fluorescent lamps used and replacing the entire lighting fixture in a stable state on the floor. Furthermore, the lighting fixture can be automatically moved up and down without bothering human labor.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment of the present invention will be described. 1 is a schematic explanatory view showing a lighting device according to a first embodiment of the present invention, FIG. 2 is a bottom view showing the lighting device,
FIG. 3 is a sectional view of a central portion of the lighting device, FIG. 4 is a partially cutaway plan view showing an elevating device of the lighting device, and FIG. 5 shows the lighting device in a state in which a lighting fixture is being lowered. It is a cross-sectional view of the central portion of.

As shown in FIGS. 1 to 5, a circular hole 2 is formed in a ceiling panel 1. The support frame 3 is formed such that the diameter gradually decreases from the lower end opening side to the upper end portion so that the peripheral wall can be fitted to the peripheral wall of the reflector (shade) 6 of the lighting fixture 5 described later, and further shortens upward. The upper surface is formed horizontally with the vertical projection, and the collar-shaped portion 4 is formed on the outer periphery of the lower end.
Are formed. The support frame 3 is inserted into the hole 2 of the ceiling panel 1 from the upper surface side, the collar-shaped portion 4 is engaged with the outer peripheral edge portion of the hole 2 on the lower surface of the ceiling panel 1, and is fixed by a mounting means such as a screw. There is.

The lighting fixture 5 is, for example, an incandescent lamp. With the reflection plate 6 inserted in the support frame 3, the collar-shaped portion 7 on the outer periphery of the lower end is engaged with the lower surface of the collar-shaped portion 4 of the support frame 3, and electrical contacts for power supply are provided between the horizontal upper plates. A space for providing the space is formed. An insulating substrate 8 is fixed on the upper surface plate of the reflection plate 6. A hole 9 is formed in the center of the upper surface plate of the reflection plate 6, and is located on the lower surface of the insulating substrate 8 in the hole 9 so that the socket 1
0 is attached, and the base of the incandescent light bulb 11 is screwed into the socket 10. A shallow recess 12 is formed on the upper surface of the insulating substrate 8, and a pair of conductive plates 13 and 14 are spaced apart from each other and mounted in an electrically insulated state in the recess 12, and the upper surface of the insulating substrate 8 and the conductive plates 13 and 14 are attached. Are set so that their upper surfaces are flush with each other. Small-diameter holes are formed in communication with the insulating substrate 8 and the conductive plate 13, and small-diameter holes are formed in communication with the insulating substrate 8 and the conductive plate 14. Conducting members 15 and 16 electrically connected to the electrodes of the incandescent light bulb 11 are inserted into the small-diameter holes, and the conducting members 15 and 16 are inserted.
The projecting portions of the above are crimped and locked to the conductive plates 13 and 14, and the conductive members 15 and 16 are electrically connected to the conductive plates 13 and 14, respectively. Insulating substrate 8 and conductive plate 1
Insulating rings 17 and 18 are concentrically fixed on the upper surfaces of 3 and 14, and ring-shaped grooves 19 and 20 formed on the upper surfaces of the insulating rings 17 and 18 have ring-shaped electric contacts 21 for power supply, 22 is attached. The conducting portion 23 protruding from the electric contact 21 is inserted into a small-diameter hole formed in the conductive plate 13, and the protruding end portion is caulked to be housed in the recess formed in the insulating substrate 8. The caulking portion Are locked to the conductive plate 13 and electrically connected to the conductive plate 13. Similarly, the conducting portion 24 protruding from the electrical contact 22 is inserted into the small diameter hole formed in the conductive plate 14, the protruding end portion is caulked, and is housed in the recess formed in the insulating substrate 8. The caulking portion is locked to the conductive plate 14 and electrically connected to the conductive plate 14. Therefore, of the pair of electric contacts 21, 22, one electric contact 21 is connected to the incandescent lamp 11 via the conductive plate 13 and the conductive member 15.
Is electrically connected to one electrode and the other electrical contact 22
Is electrically connected to the other electrode of the incandescent lamp 11 via the conductive plate 14 and the conductive member 16. A locking frame 25 is fixed to the central portion of the upper surface of the lighting fixture 5. From the center of the upper surface of the locking frame 25 to the center of one side surface,
A communicating groove 26 is formed, and the groove 26 is formed in the center of one side surface.
A hole 27 having a diameter larger than the width is formed so as to communicate with the groove 26.

Insulating plates 28 and 29 are fixed to the lower surface of the upper plate of the support frame 3 at one position on the circumference of the insulating rings 17 and 18, respectively, and the insulating plate 28 is attached to the upper surface of the upper plate of the support frame 3. , 29, the insulating plates 30 and 31 are fixed. Electrical contacts 34 and 35 for power supply are attached to recesses 32 and 33 formed on the lower surfaces of the insulating plates 28 and 29. On the insulating plates 30 and 31, a conductive plate 36,
37 is attached. The conductive portion 38 protruding from the electrical contact 34 includes an insulating plate 28, a top plate of the support frame 3,
It is inserted into a small-diameter hole formed so as to communicate with the insulating plate 30 and the conductive plate 36, the protruding portion thereof is caulked and locked to the conductive plate 36, and the electrical contact 34 is electrically connected to the conductive plate 36. Has been done. The conducting portion 39 protruding from the electrical contact 35 is inserted into a small diameter hole formed in communication with the insulating plate 29, the upper surface plate of the support frame 3, the insulating plate 31 and the conductive plate 37, and the protruding portion is caulked. Conducted plate 3
7, the electric contact 35 is electrically connected to the conductive plate 37. Power cord 4 on each conductive plate 36, 37
One end of each of 0 and 41 is connected, the power cords 40 and 41 are wired on the back side of the ceiling or the like, and the other ends of the power cords 40 and 41 are connected to a power source through a switch attached to a wall surface in the room.

The luminaire 5 is housed inside the support frame 3, and the collar-shaped portion 7 of the reflection plate 6 is engaged with the collar-shaped portion 4 of the support frame 3, so that the pair of luminaires 5 on the side of the luminaire 5 is provided. The electric contacts 21 and 22 are brought into contact with the pair of electric contacts 34 and 35 on the side of the support frame 3, so that the electrodes of the incandescent lamp 11 are electrically connected to the power supply via the switch. At this time, as described above, the pair of electrical contacts 2 on the lighting fixture 5 side.
Since the lamps 1 and 22 are formed in a ring shape, the lighting fixture 5
Even if is rotated around a vertical axis and is housed in the support frame 3, the pair of electric contacts 34 and 35 on the support frame 3 side are surely contacted. The pair of electrical contacts 34, 35 on the support frame 3 side may be formed in a ring shape, and the pair of electrical contacts 21, 22 on the lighting fixture 5 side and the pair of electrical contacts 34, 35 on the support frame 3 side may be formed. It is preferable to form at least one of them in a ring shape. In addition, one of the pair of electrical contacts 21, 22 on the side of the lighting fixture 5 or one of the pair of electrical contacts 34, 35 on the side of the support frame 3 is formed in a ring shape, and the other pair of electrical contacts 34, 35, or 21, By arranging 22 at a plurality of positions on the circumference of the ring, it is possible to bring them into contact with each other more reliably.

In the present embodiment, a wire 42 is used as a flexible linear member for suspending the lighting fixture 5, and a spherical portion 43 is formed at one end of the wire 42. Wire 4
The end of 2 and the spherical portion 43 are inserted inward of the locking frame 25 through the groove 26 and the hole 27 of the locking frame 25, and the spherical portion 43 is located at the center of the locking frame 25.
The inner surface of the upper plate of No. 5 is locked and prevented from coming off. Therefore, the lighting fixture 5 is suspended by the wire 42. On the contrary, the inner surface of the upper plate of the locking frame 25 is separated from the spherical portion 43 of the wire 42, and the end of the wire 42 and the spherical portion 43 are separated from the groove 26 and the hole 27 of the locking frame 25. It is like this.

A cover 44 is mounted on the support frame 3. A winding cylinder 45 is supported inside the cover 44. That is, the support shaft 46 is provided at the center of the cover 44.
Mounted on the support shaft 46 via a bearing 47 on the body 4
8 is rotatably supported. As described above, the wire 42 that is locked by the locking frame 25 of the lighting fixture 5 and is inserted through the hole 49 of the upper surface plate of the support frame 3 is wound around the one side of the case 48 so that it can be paid out. A DC motor 50 is supported inside the other side of the cover 44, and an output shaft 51 of the motor 50 is supported by the cover 44 in parallel with the support shaft 46. A pulley 52 is mounted on the output shaft 51, and a belt 54 is wound around the pulley 52 and a pulley 53 mounted on the end of the case 48. Therefore,
By driving the motor 50, the output shaft 51 and the pulley 52
Is rotated in one direction (clockwise direction in FIGS. 3 and 5), the pulley 53 and the body 48 are rotated in the same direction via the belt 54, and accordingly, the wire 42 is wound around the body 48 and the illumination is performed. The device 5 is lifted up and in the support frame 3,
That is, the pair of electrical contacts 21 and 22 on the side of the lighting fixture 5 are stored in the ceiling panel 1 and are held in contact with the pair of electrical contacts 34 and 35 on the side of the support frame 3 as described above, and Power can be supplied to the electrodes. When the output shaft 51 and the pulley 52 are rotated to the other side (counterclockwise direction in FIGS. 3 and 5) by the driving of the motor 50, the pulley 53 and the body 48 are passed through the belt 54.
Are rotated in the same direction, and accordingly, the wire 42 is paid out from the body 48 by the weight of the luminaire 5, the luminaire 5 descends, and the pair of electric contacts 21 and 22 on the luminaire 5 side are connected to the support frame 3 side. The electrodes of the incandescent lamp 11 are separated from the power source by being separated from the pair of electric contacts 34 and 35. Motor 5
A cord 55 for supplying power to 0 is led to a control box 56. The power cord connected to the control box 56 is wired behind the ceiling so as to be connected to the power source. The motor 50 is drive-controlled by operating a switch (not shown) or the like arranged on a wall surface or the like inside the room.

The operation of the above arrangement will be described below. Now, as shown in FIG. 1 and FIG. 3, it is assumed that the luminaire 5 is lifted and is held in a state of being stored in the support frame 3, that is, the ceiling panel 1. In this state, the motor 50 is driven by operating a switch or the like, and the output shaft 51 and the pulley 52 are rotated in one direction (clockwise in FIGS. 3 and 5). With this,
As described above, the pulley 53 and the body 48 are rotated in the same direction via the belt 54, and as shown in FIGS. 1 and 5, the weight of the luminaire 5 causes the wire 42 to be fed out of the body 48 so that the luminaire 5 is secured. The pair of electrical contacts 21 and 22 on the side of the luminaire 5 are lowered to bring the pair of electrical contacts 3 on the side of the support frame 3 into contact with each other.
The electrodes of the incandescent lamp 11 are separated from the power source by separating from the electrodes 4 and 35. By lowering the luminaire 5 in this manner, the base of the incandescent lamp 11 is newly placed on the floor in the socket 10.
The base of the incandescent light bulb 11 that has been screwed in or used can be removed from the socket 10, and the base of the new incandescent light bulb 11 can be screwed into the socket 10 for replacement, or the lighting fixture 5 can be cleaned. Alternatively, by detaching the locking frame 25 of the lighting fixture 5 from the wire 42 as described above, the entire lighting fixture 5 can be replaced.

Thereafter, the motor 50 is operated by operating the switch.
Is driven to rotate the output shaft 51 and the pulley 52 in the opposite direction to the above. Along with this, the pulley 53 and the body 48 are rotated through the belt 54, the wire 42 is wound around the body 48, and as shown in FIGS.
To raise the support frame 3, that is, the ceiling panel 1.
Store in. By stopping the driving of the motor 50 by detecting this state with a sensor or the like, the lighting fixture 5 can be held in the raised usage state, and the pair of electrical contacts 21 and 22 on the lighting fixture 5 side are supported by the support frame 3.
The pair of electric contacts 34, 35 on the side of the incandescent lamp 1
The power can be supplied to the first electrode. Then, by operating the switch, power can be supplied to the electrodes of the incandescent lamp 11 to turn on the incandescent lamp 11.

As described above, according to the present embodiment, the luminaire 5 is held in the raised state toward the ceiling panel 1 side, and the incandescent lamp 11 is newly installed, replaced, the luminaire 5 is cleaned,
When the entire lighting fixture 5 is replaced, the motor 50 is driven to rotate the winding drum 45 in one direction, so that the wire 42
The lighting fixture 5 can be lowered by unwinding from the winding drum 45. Therefore, any one of them can easily, quickly, and safely perform such work in a stable state such as on the floor. Further, since the lighting fixture 5 is automatically moved up and down by driving the motor 50, the lifting work of the lighting fixture 5 can be performed quickly and efficiently.

Next, a second embodiment of the present invention will be described. FIG. 6 shows an illuminating device in a second embodiment of the present invention, a sectional view similar to FIG. 3, and FIG. 7 is a partially cutaway plan view showing an elevating device of the illuminating device.

A feature of this embodiment is that, as shown in FIGS. 6 and 7, a flexible linear member for suspending the lighting fixture 5 is replaced by a power source instead of the wire 42 in the first embodiment. The point is that the code 58 is used.

The power cord 58, one end of which is connected to the socket 10 of the luminaire 5, is inserted into the hole 49 formed in the upper plate of the support frame 3 and supported by the cover 44.
Power cord 5 is wound around the center of 8 so that it can be paid out.
The metal wire 58 a exposed at the end of 8 is embedded in the hole formed in the body 48. A slip ring 59 is attached to the outer periphery of one side of the body 48,
The metal wire 58a is connected to (the connecting portion is not shown). A support base 60 is attached to the upper surface of the support frame 3, a base portion of a brush 61 is attached to the support base 60, and a tip portion of the brush 61 is in contact with a slip ring 59. A power cord 62 is provided at the base end of the brush 61.
So that one end of the power cord 62 is connected to the control box 56, and the other end of the power cord 57 connected to the control box 56 is connected to a power source through a switch attached to a wall surface in the room. It is wired behind the ceiling. Therefore, even if the body 48 rotates, the power cords 62 and 58 are always electrically connected via the brush 61 and the slip ring 59.

In the present embodiment, the power cord 58 connected to the lighting fixture 5 as described above is wound around the body 48 so that it can be paid out, and is connected to the power source through the slip ring 59, the brush 61 and the like. Therefore, as in the first embodiment, the electric contact 2 for supplying power to the lighting fixture 5 side is provided.
1, 22 and electrical contact 3 for power supply on the side of the supporting frame 3
It becomes unnecessary about 4, 35 and the like. The rest of the configuration is the same as that of the first embodiment, so the same parts are denoted by the same reference numerals and the description thereof is omitted.

Also in this embodiment, the luminaire 5 is held in the in-use state in which it is raised to the ceiling panel 1 side, and the incandescent lamp 11 is used.
At the time of new attachment, replacement, cleaning of the luminaire 5, etc., the power cord 58 can be extended from the body 48 and the luminaire 5 can be lowered by driving the motor 50. Therefore, any one of them can easily, quickly, and safely perform such work in a stable state such as on the floor.
Further, since the lighting fixture 5 is automatically moved up and down by driving the motor 50, the lifting work of the lighting fixture 5 can be performed quickly and efficiently.

A power cord 58 is used as the flexible linear material.
In the case of using, the power supply can be directly connected via a switch without using a slip ring or a brush. The power cord 58 is preferably reinforced with a material having excellent strength such as nylon.

Next, a third embodiment of the present invention will be described. FIG. 8 shows an illumination device according to a third embodiment of the present invention, and is a sectional view similar to FIG. 3, and FIG. 9 is a partially cutaway plan view showing an elevating device used in the illumination device.

The feature of this embodiment is that, as shown in FIGS. 8 and 9, the output shaft 51 of the motor 50 is rotated to directly rotate the winding cylinder 45. The power cord 58, which is a flexible linear material, is configured so as to be wound around the body 48 or fed out from the body 48, and other configurations are similar to those of the first and second embodiments. is there.

Also in this embodiment, the luminaire 5 is held in a raised state toward the ceiling panel 1 side, and the incandescent lamp 11 is held.
At the time of new attachment, replacement, cleaning of the luminaire 5, etc., the power cord 58 can be extended from the body 48 and the luminaire 5 can be lowered by driving the motor 50. Therefore, any one of them can easily, quickly, and safely perform such work in a stable state such as on the floor.
Further, since the lighting fixture 5 is automatically moved up and down by driving the motor 50, the lifting work of the lighting fixture 5 can be performed quickly and efficiently. In addition, in this embodiment,
In particular, the configuration of the lifting device can be simplified.

Next, a fourth embodiment of the present invention will be described. FIG. 10 is a schematic explanatory view showing a lighting device according to a fourth embodiment of the present invention, FIG. 11 is a bottom view showing the lighting device,
FIG. 12 is a sectional view of a central part showing the same lighting device, FIG. 13 is a partially cutaway plan view showing an elevating device of the same lighting device, and FIG. 14 is a central part of the same lighting device with a lighting fixture lowered. FIG.

The feature of this embodiment is that, as shown in FIG. 10 to FIG.
In addition, a fluorescent lamp is used instead of the incandescent lamp in the third embodiment.

In the luminaire 5, a reflection plate (shade) 6 is formed in a rectangular shape, and the side wall on the long side is formed so as to gradually reduce the distance from the opening side of the lower end to the upper end, and the socket 63 has a fluorescent lamp. 64 bases are supported. The support frame 3 is also formed in a shape corresponding to the reflection plate 6. Locking frames 25 are fixed on both sides of the short side on the upper surface of the lighting fixture 6, and the locking frames 25 are formed at the tips of the bifurcated branches on the tip side of the wires 42 that are flexible wires. The formed spherical portion 43 is detachably locked. An elevating device including a winding cylinder 45, a motor 50, pulleys 52 and 53, a belt 54, and the like is provided at the center of the upper surface of the support frame 3, and a wire 42 is wound around a body 48 of the elevating device so that the wire 42 can be unwound. Since the lighting fixture 5 using the fluorescent lamp 64 is long, it is configured to be hung in a stable state at two locations. The rest of the configuration is the same as that of the first embodiment, so the same parts are denoted by the same reference numerals and the description thereof is omitted.

Also in this embodiment, the luminaire 5 is held in the raised state to the ceiling panel 1 side, and the fluorescent lamp 64 is newly installed, replaced, the number of fluorescent lamps 64 used is changed, and the luminaire 5 is cleaned. When replacing the entire lighting fixture 5, the wire 42 can be paid out from the barrel 48 by driving the motor 50 to lower the lighting fixture 5. Therefore, anyone can easily perform such work in a stable state such as on the floor.
It can be done quickly, safely. Furthermore, since the lighting fixture 5 is automatically moved up and down by driving the motor 50, the lifting and lowering work of the lighting fixture 5 can be performed quickly and efficiently.

Two wires 42 are used, and the wire 42
You may install the lifting device of 2 in two places. Also in the present embodiment, if the weight of the lighting fixture 5 can be withheld, the lighting fixture 5 can be hung by the power cord 58 as in the second and third embodiments, and the lighting fixture 5 side The electric contacts 21 and 22 for power supply, the electric contacts 34 and 35 for power supply on the side of the support frame 3 and the like can be eliminated.

Next, a fifth embodiment of the present invention will be described. 15 and 16 show an illuminating device according to a fifth embodiment of the present invention, FIG. 14 is a sectional view of a central portion, and FIG. 15 is a partially cutaway plan view of an elevating device.

The features of this embodiment are shown in FIG.
As shown in FIG. 16, a wire 42 that suspends the lighting fixture 5
Is wound or unwound by driving the motor 75, and the winding drum 45 is biased in the winding direction of the wire 42 by the constant force spring 68 to give tension to the wire 42, without loosening, and in an orderly manner. The point is that it can be held in a rolled state.

The cover 44 will be described in detail.
A support shaft 46 is attached to a central portion of the winding drum 4 and a barrel 48 is rotatably supported on the support shaft 46 via a bearing 47.
5 are configured. The wire 42 is wound around the center of the body 48 so that the wire 42 can be paid out. A support shaft 65 parallel to the support shaft 46 is attached to one side of the cover 44.
A body 67 is rotatably supported on the end of the support shaft 65 via a bearing 66. A constant force spring 68 is provided at the end of the body 48.
Of the constant load spring 68 is connected to the barrel 67, the constant load spring 68 is wound around the barrel 67 in advance, and the barrel 48 is biased in the winding direction of the wire 42. The first feed roller 69 and the second feed roller 69 are arranged in parallel with the support shaft 46.
The feed roller 70 is provided. First feed roller 69
Is attached to the cover 44. The second feed roller 70 is rotatably supported by a shaft 71 attached to the cover 44 via a bearing. A pair of collar-shaped portions 73 is integrally provided on the outer periphery of the first feed roller 69, and a part of the outer periphery of each collar-shaped portion 73 is formed in a pair of grooves 74 formed on the outer periphery of the second feed roller 70. Inserted to fit, the torso 48
The wire 42 unwound from the first and second feed rollers 69 and 70 is passed between the pair of collar-shaped portions 73, and the wire 42 is fed by the collar-shaped portion 73. It is prevented from separating from the two feed rollers 69 and 70.

Therefore, the second feeding roller 70 is shown in FIG.
By being rotated clockwise at 5, the wire 4
2 is forcibly fed downward by the first feed roller 69,
The constant force spring 68 is extended against the elasticity, and accordingly, the body 48 is rotated counterclockwise while the wire 42 is being rotated.
Is delivered from the body 48. Contrary to this, the second feed roller 70 is rotated counterclockwise in FIG. 15 and the wire 42 is pushed up, so that the constant force spring 68.
Is rewound to the body 67 side by its own resilience, and accordingly, the body 48 is rotated clockwise while the wire 42
Is wound around the body 48.

A DC motor 7 is provided inside the end of the cover 44.
5 is supported, and the output shaft 76 of the motor 75 is supported by the cover 44 in parallel with the second feed roller 70 and the like. The belt 77 is attached to the pulley 77 mounted on the output shaft 76 and the pulley 78 mounted on the second feed roller 70.
It is multiplied by 9. Therefore, the driving of the motor 75 causes the second feed roller 70 to rotate in the clockwise direction or the counterclockwise direction in FIG. This motor 75
Is driven and controlled by operating a switch provided on the indoor wall surface or the like as described above, or is remotely controlled by optical communication. Other configurations are similar to those of the first embodiment and the like.

The operation of the above arrangement will be described below. Now, it is assumed that the luminaire 5 is raised and is held in the support frame 3, that is, in the use state stored in the ceiling panel 1 (see FIG. 10). In this state, the motor 75 is driven by operating the switch or the remote control device to rotate the output shaft 76 and the pulley 77 in the clockwise direction in FIG. 15, and the pulley 78 and the second pulley 78 are rotated via the belt 79 as described above. Feeding roller 70
Rotate clockwise. Along with this, the wire 42 is forcibly fed downward in cooperation with the first feed roller 69, the constant force spring 68 is paid out from the barrel 67, and the wire 42 is paid out while rotating the barrel 48, and the lighting fixture is provided. 5 is lowered to separate the pair of electrical contacts 21 and 22 on the side of the luminaire 5 from the pair of electrical contacts 34 and 35 on the side of the support frame 3 to cut off the electrodes of the fluorescent lamp 64 (or the incandescent lamp 11) from the power supply. . By lowering the luminaire 5 in this manner, a new fluorescent lamp 64 (or incandescent lamp 1 is placed on the floor.
Screw the cap of 1) into the socket 63 (or 10),
Or used fluorescent lamp 64 (or incandescent lamp 11)
Of the new fluorescent lamp 64 (or incandescent lamp 11) is screwed into the socket 63 (or 10) and replaced, or the number of fluorescent lamps 64 used is changed, Alternatively, the lighting fixture 5 can be cleaned. Alternatively, by separating the locking frame 25 of the lighting fixture 5 from the wire 42 as described above,
The entire luminaire 5 can be replaced.

After that, the motor 75 is driven by operating a switch or a remote control device, and the output shaft 76 and the pulley 77 are rotated counterclockwise in FIG.
As described above, the pulley 78 and the second feed roller 70 are rotated counterclockwise via the belt 79. Along with this, the wire 42 is forcibly fed upward in cooperation with the first feed roller 69, and the constant force spring 68 is wound around the barrel 67 by its restoring elasticity, and the barrel 48 is rotated accordingly. The wire 42 is wound around the body 48 to raise the luminaire 5, and the luminaire 5 can be held in the use state stored in the support frame 3 as in the above-described embodiments, and a pair of electrical contacts on the luminaire 5 side. 21 and 22 are brought into contact with the pair of electrical contacts 34 and 35 on the side of the support frame 3, and the power supply to the electrodes of the fluorescent lamp 64 becomes possible. Then, by operating a switch or the like, power is supplied to the electrodes of the fluorescent lamp 64,
4 can be turned on.

According to this embodiment, since the body 48 is biased in the winding direction of the wire 42 by the constant load spring 68, the wire 42 does not loosen while being tensioned.
It can be held in an orderly rolled state. Further, the constant force spring 68 may be wound in a length substantially equal to the payout length of the wire 42, so that it can be compacted.

Also in this embodiment, if the weight of the luminaire 5 can be endured, the luminaire 5 can be made as a flexible linear member.
A power cord connected to the power cord can be used for winding or unwinding the power cord.
Further, if the constant force spring 68 is used as described above, it can be made compact, but it is not always necessary.
However, the spiral spring may be used, for example.

Next, a sixth embodiment of the present invention will be described. FIG. 17 is a sectional view of a central portion showing a lighting device according to a sixth embodiment of the present invention.

The feature of this embodiment is that, as shown in FIG. 17, between the end of the wire 42, which is a flexible wire, and the lighting fixture 5, the wire 42 and the spherical portion 43 are shown in the illustrated example. The tension spring 80 is interposed between the lighting fixture 5 and the lighting fixture 5, and the restoration spring of the tension spring 80 causes the electrical contacts 21 and 22 on the lighting fixture 5 side to supply power to the ceiling, and the electrical contacts 34 to supply power on the ceiling side. The structure is such that it is pressed into contact with 35 to ensure reliable contact, and the other structures are the same as those in the above-mentioned respective embodiments.

Also in this embodiment, the luminaire 5 is held in the in-use state while being raised to the ceiling panel 1 side, and the incandescent lamp 11 is used.
At the time of new installation, replacement, cleaning of the luminaire 5, etc., the wire 42 can be unwound from the case 48 by driving the motor 50 and the luminaire 5 can be lowered. Therefore, anyone can easily perform such work in a stable state such as on the floor.
It can be done quickly, safely. Further, since the lighting fixture 5 is automatically moved up and down by driving the motor 50, the lifting work of the lighting fixture 5 can be performed quickly and efficiently. In addition, in this embodiment, in particular,
Electrical contacts 21 and 22 for supplying power when the lighting fixture 5 is raised
Since the elasticity of the tension spring 80 allows the contacts 34 and 35 to come into contact with each other with reliability, the reliability can be improved.

Next, a seventh embodiment of the present invention will be described. FIG. 18 is a sectional view of a central portion showing a lighting device according to a seventh embodiment of the present invention, and FIG. 19 is a partially cutaway plan view showing a lifting device used in the lighting device.

The feature of this embodiment is that FIG.
As shown in FIG. 19, the lifting device is provided on the lighting fixture 5 side.

Explaining in detail, the upper surface of the support frame 3 is removed. A pair of support members 81 are attached on the reflection plate 6 of the lighting fixture 5, and the motor 50 and its output shaft 51 are supported between these support members 81, 81. A winding cylinder 45 is attached on the output shaft 51. One end of a power cord 82 is electrically connected to a power source via a switch or the like, the power cord 82 is wired behind the ceiling, and is inserted into a bushing 83 attached to a hole in the center of the upper surface of the cover 44, so that the winding drum It is wound around the center of a body 48 of 45 so as to be able to be paid out. Power cord 82
A metal wire 82a exposed at the other end of is wound in a hole formed in the body 48 of the winding body 45. A slip ring 59 is attached to the outer periphery of one side of the body 48, and a metal wire 82a is connected to the slip ring 59 (a connecting portion is not shown). A support base 60 is attached to the upper surface of the reflection plate 6, a base portion of a brush 61 is attached to the support base 60, and a tip portion of the brush 61 is connected to a slip ring 59. One end of a power cord 58 is connected to the socket 10 of the lighting fixture 5, and the other end of the power cord 58 is connected to the base of the brush 61. Therefore, even if the case 48 rotates, the power cords 82 and 58 are always electrically connected via the brush 61 and the slip ring 59. Other configurations are similar to those of the first embodiment and the like.

The operation of the above configuration will be described below. Now, as shown in FIG. 18, it is assumed that the luminaire 5 is lifted up and stored in the support frame 3, and the lifting device is stored in the cover 44 and held in a used state. In this state, the motor 50 is driven by operating a switch or the like, and the output shaft 51 and the body 48 are rotated clockwise, so that the lighting fixture 5 descends by its own weight while feeding the power cord 82. By lowering the luminaire 5 in this manner, the base of the incandescent bulb 11 is newly screwed into the socket 10 on the floor, or the base of the used incandescent bulb 11 is removed from the socket 10,
The base of a new incandescent light bulb 11 can be screwed into the socket 10 for replacement, or the lighting fixture 5 can be cleaned.

Thereafter, the motor 5 is operated by operating a switch or the like.
By driving 0 and rotating the output shaft 51 and the body 48 in the counterclockwise direction, the lighting fixture 5 rises while winding the power cord 82, and is stored in the ceiling panel 1 in a used state. By stopping the driving of the motor 50 by detecting this state with a sensor or the like, the lighting fixture 5 can be held in the raised use state.

Also in this embodiment, the lighting fixture 5 is raised to the side of the ceiling panel 1 and is kept in use, and the incandescent lamp 11 is used.
At the time of new installation, replacement, cleaning of the luminaire 5, etc., the power cord 82 can be extended from the body 48 and the luminaire 5 can be lowered by driving the motor 50. Therefore, any one of them can easily, quickly, and safely perform such work in a stable state such as on the floor.
Further, since the lighting fixture 5 is automatically moved up and down by driving the motor 50, the lifting work of the lighting fixture 5 can be performed quickly and efficiently.

The above-mentioned embodiment is not limited to providing a pair of electric contacts for power supply on the lighting fixture 5 side and the ceiling 1 side. Further, if the electric contacts 21, 22 and 34, 35 are made of a leaf spring material and are elastically contacted with each other, they can be surely contacted. Further, when the weight of the entire apparatus is large, it may be supported from the ceiling slab. Further, the constituent elements of each of the above-described embodiments can be appropriately combined and used. In addition, the present invention can be modified in various ways without departing from the basic technical idea thereof.

[0055]

As described above, according to the present invention, by driving the motor of the elevating device, the flexible linear member is automatically paid out to lower the lighting fixture which is raised to the ceiling side. It is possible to automatically wind the flexible wire material by driving the motor of the elevating device, and raise the lighting fixture to the ceiling side to keep it in use. In this way, it is possible to raise the ceiling side and lower the luminaire that is held in use as needed, so you can install a new bulb, replace the bulb, clean the luminaire, and reduce the number of fluorescent lamps used. It is possible to perform work such as changing and replacing the entire lighting fixture in a stable state on the floor. Therefore, anyone can easily, quickly, and safely perform those operations. Furthermore, the lighting fixture can be automatically moved up and down without bothering human labor. Therefore, the lifting and lowering work of the lighting fixture can be performed quickly and efficiently.

Further, the lifting device includes a winding cylinder for winding the flexible linear material so that it can be drawn out, and a motor for rotating the winding cylinder in either direction, thereby simplifying the structure. be able to.

Further, as the elevating device, a winding cylinder for winding the flexible linear material so that it can be drawn out, a spring for urging the winding cylinder in the winding direction of the flexible linear material, First and second feed rollers for feeding the flexible linear material from the winding cylinder against the elasticity of the spring or for winding the flexible linear material on the winding cylinder by using the elasticity of the spring; By including the motor for rotating the two feed rollers in either direction, the flexible linear material can be held in an orderly wound state without being loosened in a state where tension is applied to the flexible linear material.

Further, by using a constant load spring as the spring, the constant load spring may be wound up with a length substantially equal to the payout length of the flexible linear member, so that it can be made compact. .

The flexible linear member is formed of a material other than a power cord, such as a wire for exclusive use of suspension, is provided on the side of the lighting fixture, and is electrically connected to the electrode of the electric bulb for power supply. When the lighting fixture is lifted, the electrical contacts are installed on the ceiling side and are connected to the power supply so that they can be electrically connected to the power supply. Can be made.

Further, by connecting the ends of the above flexible linear members by the detachable locking means, it is possible to particularly easily and quickly replace the entire lighting fixture.

Further, by forming at least one of the electric contact for power supply on the side of the luminaire and the electric contact for power supply on the ceiling in a ring shape, the luminaire rotates about a vertical axis when rising. Even if it is, it can be surely electrically connected.

By forming one of the electric contacts for power supply on the side of the luminaire and one of the electric contacts for power supply on the ceiling side in a ring shape and disposing the other at a plurality of positions on the circumference of the ring. , And both can be electrically connected more certainly.

Further, a spring is provided on the end portion side of the flexible wire member so that the electric contact for power supply on the side of the luminaire is brought into pressure contact with the electric contact for power supply on the side of the ceiling when the luminaire is raised. As a result, both electric contacts can be surely brought into contact with each other and reliability can be improved.

A power cord is used for the flexible linear member, and a slip ring provided on a rotatable winding drum, to which a metal wire of the power cord is connected, and a brush contacting the slip ring are provided. By configuring the lighting equipment and the power source to be connected via the lighting equipment, it is not necessary to provide an electrical contact for supplying power to the lighting equipment side and the ceiling side, and the lighting equipment is raised to the ceiling side. This simplifies the structure for holding the device in use.

By controlling the drive of the motor by remote control, the operability of raising and lowering the lighting fixture can be improved.

[Brief description of drawings]

FIG. 1 is a schematic explanatory diagram showing a lighting device according to a first embodiment of the present invention.

FIG. 2 is a bottom view showing the lighting device.

FIG. 3 is a sectional view of a central portion showing the lighting device.

FIG. 4 is a partially cutaway plan view showing a lifting device of the lighting device.

FIG. 5 is a cross-sectional view of the central portion of the lighting device showing a state where the lighting fixture is being lowered.

FIG. 6 is a sectional view similar to FIG. 3, showing an illumination device according to a second embodiment of the present invention.

FIG. 7 is a partially cutaway plan view showing a lifting device of the lighting device.

FIG. 8 is a sectional view of a central portion showing a lighting device according to a third embodiment of the present invention.

FIG. 9 is a partially cutaway plan view showing a lifting device of the lighting device.

FIG. 10 is a schematic explanatory view showing an illumination device according to a fourth embodiment of the present invention.

FIG. 11 is a bottom view showing the lighting device.

FIG. 12 is a cross-sectional view of a central portion showing the lighting device.

FIG. 13 is a partially cutaway plan view showing a lifting device of the lighting device.

FIG. 14 is a cross-sectional view of the central portion of the lighting device showing the lighting device lowered.

FIG. 15 is a sectional view of a central portion of a lighting device according to a fifth embodiment of the present invention, in which the lighting fixture is lowered.

FIG. 16 is a partially cutaway plan view showing an elevating device used for the lighting device.

FIG. 17 is a sectional view of a central portion showing a lighting device according to a sixth embodiment of the present invention.

FIG. 18 is a sectional view of a central portion showing a lighting device according to a seventh embodiment of the present invention.

FIG. 19 is a partially cutaway plan view showing a lifting device used for the lighting device.

[Explanation of symbols]

 1 Ceiling Panel 3 Support Frame 5 Lighting Equipment 6 Reflector (Shade) 10 Socket 11 Incandescent Light Bulb 21 Electric Contact for Power Supply 22 Electrical Contact for Power Supply 34 Electrical Contact for Power Supply 35 Electrical Contact for Power Supply 42 Wire (Flexible wire material) 45 Winding cylinder 46 Support shaft 48 Body 50 Motor 58 Power cord (Flexible wire material) 59 Slip ring 61 Brush 63 Socket 64 Fluorescent lamp 67 Body 68 Constant load spring 69 First feed Roller 70 Second feed roller 75 Motor 80 Tension spring 82 Power cord (flexible wire material)

Claims (12)

[Claims] 1. A luminaire, a flexible linear member for suspending the luminaire, and a ceiling provided, which selectively winds and unwinds the flexible linear member by driving a motor. A lighting device comprising: a lifting device that raises the lighting fixture to the ceiling side to hold it in use or lowers it. 2. A luminaire, a flexible linear member for suspending the luminaire, and a luminaire, which is provided on the luminaire side, and selectively winds and unwinds the flexible linear member by driving a motor. And a lifting device that raises the lighting fixture to the ceiling side to hold it in use or lowers it. 3. The lighting device according to claim 1, wherein the elevating device includes a winding cylinder that winds the flexible linear material so that the flexible wire material can be drawn out, and a motor that rotates the winding cylinder in either direction. . 4. An elevating device for winding a flexible linear material so that the flexible linear material can be drawn out, a spring for urging the winding cylinder in a winding direction of the flexible linear material, and the flexible body. First and second feed rollers for feeding the elastic linear material from the winding cylinder against the elasticity of the spring or for winding the elastic linear material on the winding cylinder by using the elasticity of the spring; 3. The lighting device according to claim 1, further comprising a motor that rotates the feed roller of 1. in any direction. 5. The lighting device according to claim 4, wherein the spring is a constant force spring. 6. A flexible linear member is formed of a material for suspending other than a power cord, is provided on a lighting fixture side, and an electric contact for power supply electrically connected to an electrode of a light bulb is illuminated. The lighting device according to any one of claims 1 to 5, which is configured to be electrically connected to an electric contact for power supply, which is provided on a ceiling side and is connected to a power source when the fixture is raised. 7. The lighting device according to claim 6, wherein the ends of the flexible linear member are detachably connected by a locking means. 8. An electrical contact for supplying power to the lighting equipment,
The lighting device according to claim 6, wherein at least one of the electric contacts for power supply on the ceiling side is formed in a ring shape. 9. An electrical contact for supplying power to the lighting equipment,
The lighting device according to claim 6 or 7, wherein one of the electric contacts for power supply on the ceiling side is formed in a ring shape, and the other is arranged at a plurality of positions on the circumference of the ring. 10. A spring is provided on an end portion side of the flexible wire member for pressurizing and contacting an electric contact for power supply on the side of the lighting fixture with an electric contact for power supply on the ceiling side when the lighting fixture is raised. The lighting device according to any one of claims 6 to 9. 11. The flexible linear member is a power cord, and a metal wire of the power cord is connected to the rotary cord through a slip ring provided on a rotatable winding drum and a brush in contact with the slip ring. The lighting device according to any one of claims 1 to 5, wherein the lighting device and the power supply are connected to each other. 12. The lighting device according to claim 1, wherein the drive of the motor is controlled by remote control.