JP2006302686A - Luminaire with elevating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a luminaire with an elevation device for allowing horizontal winding of a wire in suspension of a light fixture by a single wire and allowing easy embedment in a ceiling. <P>SOLUTION: The light fixture 2 is suspended by the single wire 8. A fixture main body 1 is provided with a pulley on which the wire 8 is looped. An elevation unit 3 has a drum 19, which is arranged in the side part of the fixture main body 1 to wind/unwind the wire 8 hung on the pulley for lifting/lowering the light fixture 2, and a motor 20 normally/reversely rotating the drum 19. In the elevation unit 3, the drum 19 is positioned apart from the fixture main body 1, while the motor 20 is positioned close to the fixture main body 1, and the motor 19 and the drum 19 are coupled together via a speed reduction gear 25. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a lighting fixture with a lifting device.

  A conventional lighting device with a lifting device shown in FIG. 8, for example, a downlight with an autolifter, hangs a downlight fixture body 72 into a recessed hole 71 of the ceiling 70 by a suspension bolt 73 of the ceiling 70, and A lifting unit 74 is mounted on the unit, and a lamp 76 having, for example, HID as a light source 77 is suspended from the lifting unit 74 by two wires 75 or a belt of a steel plate, and the lifting unit 74 is driven to raise and lower the lamp 76. Yes.

  However, in general houses, it is not possible to hang bolts, and it is not preferred that the height of the appliance be, for example, 250 mm or more, and there is almost no HID lighting fixture attached. Further, when the lamp 76 is housed in the instrument main body 72, it is necessary to regulate the direction of the lamp 76 in order to prevent the wire 75 from being twisted. Furthermore, this lighting fixture has a large number of parts, is difficult to assemble, and is expensive.

Another conventional example (see, for example, Patent Documents 1 and 2) is one in which a lamp using a light source for general households is hung by a wire, and the structure of the lifting unit is simplified, so it is provided in the instrument body. And the instrument height can be reduced.
JP-A-1-236506 JP-A-6-103807

  However, in the other conventional example, since the drum for winding and rewinding the wire is arranged in the immediate vicinity of the raised lamp, it is difficult to wind the wire in parallel with the drum, and the wire is part of the drum. Therefore, the drum is enlarged so that the wire does not protrude from the drum, or the wire is not smoothly rewound. On the other hand, when the drum is separated from the lamp, the main body of the instrument becomes large and becomes unsuitable as an embedded type.

  Accordingly, an object of the present invention is to provide a lighting fixture with a lifting device which can wind a wire in parallel and easily embed a ceiling when hanging a single lamp.

  In the lighting device with the lifting device according to the present invention, the lamp is suspended from one rope. The instrument body has a guide for hanging the rope. The elevating unit has a drum that is disposed on the side of the instrument main body, winds and rewinds the strip hung on the guide, and moves the lamp up and down, and has a driving means that rotates the drum forward or backward. And the said raising / lowering unit has arrange | positioned the said drum in the position far from the said instrument main body, and has arrange | positioned the said drive means near the said instrument main body.

  According to the lighting fixture with the lifting device of the present invention, since the lifting unit is arranged on the side of the fixture body, the height of the fixture body can be kept low. Further, since the drum is separated from the instrument main body, it is easy to wind the drum in parallel, and the driving means such as a motor is disposed on the instrument main body side, so that the size of the lifting unit can be suppressed. Therefore, it can be easily applied as an embedded type.

  An embodiment of the present invention will be described with reference to FIGS. In other words, this lighting fixture with an embedded lifting device suspends the lamp 2 from the lifting unit 3 so that it can be lifted and lowered by, for example, a wire 8, and the lamp 2 is housed in the fixture body 1 at the rising position of the lamp 2. .

  The lamp 2 also serves as a reflector with an outer shell 5 formed in a two-stage conical shape or truncated cone shape so that the upper end side has a small diameter and the lower end side has a large diameter, and a lamp socket 6 is disposed on the inner surface of the upper end. A light source 4 using a general fluorescent lamp for downlight, for example, is attached to the lamp socket 6. A power receiving contact 7 connected to the lamp socket 6 is provided on the upper surface side of the upper end of the lamp 2, and the tip of one wire 8 is attached at a position that becomes the center of gravity of the lamp 2.

  The fixture body 1 has a cylindrical shape that forms a storage portion in which the lamp 2 can be inserted and removed in the up-and-down direction. A flange 10 is formed at the opening edge of the fixture body 1 to be engaged with the edge of the embedded hole 9 in the ceiling 11. The fixture 12 which latches to the back surface of the ceiling 11 is provided in the part. In addition, a power supply contact 13 that contacts the power receiving contact 7 is provided at the top of the instrument body 1 and a guide, for example, a pulley 14 for hanging the wire 8 is provided, and the wire 8 that holds the lamp 2 passes through the pulley 14 and the side portion of the instrument body 1. For example, it is drawn out from a wire insertion portion 41 formed by a notch. Further, a rising position detection switch 15 for the lamp 2 is provided in the vicinity of the pulley 14. The fixture body 12 is locked onto the back surface of the ceiling 11 in a state where the instrument body 1 is inserted into the embedded hole 9 and the collar 10 is locked to the edge of the embedded hole 9, thereby fixing the instrument body 1 to the ceiling 11. ing.

  One end of the connecting plate 17 is attached to the top of the instrument main body 1 with a connector 16 such as a screw, the other end is extended to the side of the instrument main body 1, and the lifting unit 3 is attached to the other end of the connecting plate 17. As a result, the lifting unit 3 is disposed on the side of the instrument body 1 as a whole.

  In the cover 18, the elevating unit 3 has a drum 19 disposed at a position far from the instrument main body 1, and a driving means such as a motor 20 is disposed at a position close to the instrument main body 1. The drum 19 winds and rewinds the wire 8 that suspends the lamp 2 so as to be able to move up and down via the pulley 14. In this case, pulleys 21 and 22 are further arranged as guides between the pulley 14 and the drum 19 in the lifting unit 3. The pulley 21 is disposed at a substantially central position of the elevating unit 3, and the pulley 22 is disposed at a position close to the instrument body 1, and the wire 8 is wound around the drum 19 sequentially from the lamp 2 through the pulleys 14, 21, 22. ing. The pulley 22 is a fulcrum of the wire 8 when the drum 19 feeds or winds the wire 8. Further, a tension guide 23 is disposed between the pulley 22 and the drum 19 to slidably support the wire 8 and to be urged by a spring 24 in a direction in which the wire 8 wound around the drum 19 is pressed against the drum.

  The motor 20 rotates the drum 19 forward and backward by forward or reverse rotation, and the motor 20 and the drum 19 are connected via a reduction gear 25 as a reduction mechanism. The motor 20 uses a direct current motor and receives normal power from the operation unit 30 to rotate forward or reverse.

  An operation unit 30 for operating the motor 20 is provided at an operable position such as a wall. The operation unit 30 has a battery power supply and a fixing means that detachably fixes the battery power supply and can change the fixing direction, so that the polarity of the output of the fixing means is reversed by changing the fixing direction of the battery power supply. It is configured.

  That is, the battery power source includes, for example, a 9V battery 31 and a battery box 32 that houses the battery 31, and has a power contact electrode terminal that contacts the electrode of the battery 31. The battery box 32 has power supply contacts 34a and 34b connected to the electrode terminals for power supply contacts on the back side, and a display portion for distinguishing the vertical direction of the battery box 32, for example, a triangular mark 35 is shown on the surface. The plate box 33 serving as a fixing means has a storage chamber 36 for storing and fixing the battery box 32. In the storage chamber 36, power receiving contacts 37a and 37b (37b not shown) are arranged in parallel, and the power receiving contacts 37a and 37b are connected to each other. The ends of the wiring 38 to the motor 20 are connected to the terminals 40a and 40b that are connected and exposed on the back side. The storage chamber 36 accommodates the battery box 32 so that it can be turned upside down, and is detachably fixed in a state in which the power supply contacts 34a and 34b are in contact with the power receiving contacts 37a and 37b. In this case, the battery box 32 is pulled out by directly holding it, or by providing a button or the like and operating it, for example, the battery box 32 is pulled out.

  When the battery box 32 is stored in the plate box 33, the power supply contacts 34 a and 34 b and the power receiving contacts 37 a and 37 b come into contact with each other, and power can be supplied to the motor 20 through the wiring 38. In this case, since the power supply contacts 34a, 34b and the power receiving contacts 37a, 37b are arranged side by side, the triangular mark 35 of the battery box 32 is stored in the plate box 33 so that it looks like an inverted triangle, for example. When the triangular mark 35 of the box 32 is housed in the plate box 33 so that it looks like a normal triangle, the polarity supplied to the wiring 38 is reversed. When reversed. Thus, the forward / reverse rotation of the motor 20 can be operated by controlling the direct current direction using the polarity of the battery 31.

  When the motor 20 is rotated forward by the operation of the operation unit 30, for example, when the drum 19 rotates in the feeding direction via the reduction gear 25, the wire 8 is drawn and the lamp 2 is lowered. At the lowered position of the lamp 2, for example, the battery box 32 is removed, or a power supply is stopped by providing a detection switch or a stop switch. This makes it possible to replace the lamp. On the other hand, when the motor 20 is reversely rotated by the operation of the operation unit 30, the lamp 2 is raised. As the lamp 2 moves up, the upper end of the lamp 2 pushes the lift position detection switch 15 and the motor 20 stops. At the same time, the power receiving contact 7 comes into contact with the power feeding contact 13 and the light source 4 can be turned on.

  According to this embodiment, the structure of the lifting unit 3 can be simplified by suspending the lamp 2 by the single wire 8. By arranging the elevating unit 3 on the side of the instrument main body 1, the instrument height can be reduced to, for example, 250 mm or less, so that it is easy to realize a downlight with an auto lifter for ordinary houses.

  Since the drum 19 is disposed at a position far from the instrument main body 1 from the lifting / lowering unit 3, the distance between the pulley 22 serving as a wire fulcrum on the instrument main body 1 side and the drum 19 can be increased. Compared with the case where it is arrange | positioned, parallel winding can be performed and it does not wind around solidly on a part of drum 19. Further, by arranging the motor 20 on the side of the instrument body 1, the size becomes compact and it is possible to incorporate it into the downlight.

  By providing a wall switch using the battery box 32, it is possible to develop a product of a low voltage DC power supply. The low voltage ensures high safety and does not require a construction license for construction. Further, the drum can be rotated in reverse by removing the battery box 32 and connecting it upside down, so that the configuration around the wiring can be simplified.

  Although the pulley 22 is a wire fulcrum, the pulley 14 can be a wire fulcrum.

It is a perspective view of the state which took the cover of the raising / lowering unit of the lighting fixture of one Embodiment of this invention. It is the principal part enlarged view. It is sectional drawing. It is a perspective view of the lighting fixture. It is a perspective view of an operation part. (A) is a perspective view for explaining the insertion and removal of the battery box, (b) is a perspective view for explaining the battery box upside down, and (c) is a perspective view for explaining the storage state of the battery. It is the perspective view which looked at the operation part from the back side. It is sectional drawing of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Instrument body 2 Lamp 3 Lifting unit 8 Wire
14 pulley 19 drum 20 motor 25 reduction gear

Claims (1)

  A lamp hung from one rope, an instrument main body having a guide for hanging the rope, and winding and unwinding the rope arranged on the side of the instrument main body and hung on the guide. An elevating unit having a drum for elevating and lowering the lamp and having a driving means for rotating the drum forward or backward, wherein the elevating unit disposes the drum at a position far from the instrument body; Lighting equipment with lifting device placed near the body.

Images