JP2010170875A - Lifting-type luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce cost by sharing a lifting device for luminaires of different sizes and to achieve a stable lifting operation without rotation of a luminaire in a lifting-type luminaire including the lifting device for lifting the luminaire. <P>SOLUTION: The lifting-type luminaire includes: a lifting device 1; a luminaire body 21 suspended by a lifting wire 11 lifted by a lifting reel 12 of the lifting device 1; a rotation preventing wire 31 preventing the luminaire body 21 from rotation; and a rotation preventing reeler 32 arranged away from the lifting reel 12 and winding/unwinding the rotation preventing wire 31. The lifting wire 11 is fixed at the center section of the luminaire body 21, and the rotation preventing wire 31 is fixed in a periphery away from the center section. Therefore, the luminaire body 21 can be hardly rotated horizontally even when the lifting wire 11 is fixed at the center section by the rotation preventing wire 31, so that cost is reduced by sharing the lifting device irrespective of a size of a luminaire 2 and a stable lifting operation without rotation of the luminaire is achieved. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a lifting / lowering lighting fixture having a lighting fixture suspended from a high ceiling surface such as a concert hall or a gymnasium by a lifting / lowering wire.

  An example of this type of elevating lighting fixture is shown in FIG. This lifting / lowering lighting fixture is lifted / lowered by suspending the lighting fixture body 100 by two wires 102 from a lifting / lowering device 101 attached to a ceiling surface 200 or the like, and winding or unwinding the wire 102 around a drum by a motor. (See, for example, Patent Document 1). In this lifting / lowering lighting fixture, the lighting fixture main body 100 has a plurality of light sources 110 in a row and is a long lighting fixture that is long in one direction. Therefore, the lifting / lowering device 101 is adapted to the length of the lighting fixture main body 100. The space between the two wires 102 is designed to be wide so that the luminaire main body 100 does not rotate in the horizontal direction, and the lifting device 101 has a long and large configuration.

  As another conventional example, as shown in FIG. 4, in the case of a lifting type lighting fixture that moves up and down the short type lighting fixture main body 103 with a small number of light sources 110, the distance between the wires 102 may be narrow. 104 is designed in a short and compact configuration.

  FIG. 5 shows a case where the short lifting / lowering device 104 as shown in FIG. 4 is applied to the long lighting fixture body 100 as shown in FIG. The long luminaire main body 100 has a narrow interval between the wires 102 attached to the central portion thereof, and thus is affected by a lack of balance between the wires 102 when moving up and down, and thus tends to cause horizontal rotation as indicated by an arrow A. . Therefore, it is difficult for the short lifting device 104 to lift and lower the long lighting fixture body 100 stably.

  For this reason, conventionally, as shown in FIGS. 3 and 4, the elevating device has been designed to change the wire spacing in order to suppress the rotation operation of the fixture according to the size of the lighting fixture such as the long type or the short type. It was made exclusively for each lighting fixture. Therefore, a design change and a design period are required for each lighting device having a different size, resulting in a high cost and a long delivery time.

Japanese Patent Laid-Open No. 7-211126

  The present invention solves the above-described problems, and provides a lift-type lighting fixture that can achieve stable raising and lowering without fixture rotation, along with cost reduction by sharing a lifting device for lighting fixtures of different sizes. For the purpose.

  In order to achieve the above object, the invention according to claim 1 includes an elevating reel provided on a ceiling surface, an elevating wire wound and unwound by the elevating reel, and a lighting fixture body that is lifted and lowered by the elevating wire. The lifting / lowering wire is fixed to substantially the center of the lighting fixture body, and is fixed to a peripheral portion of the lighting fixture body away from the fixing portion of the lifting / lowering wire. An anti-rotation wire that prevents the rotation of the anti-rotation wire, and an anti-rotation reel that is disposed away from the lifting reel and winds and unwinds the anti-rotation wire.

  According to the first aspect of the present invention, since the lifting wire and the anti-rotation wire are wound and unwound together in a state of being separated from each other, the lighting fixture main body has a configuration that is long in one direction, and the lifting wire is arranged at the center thereof. Even if it moves up and down in a fixed state, the horizontal rotation of the lighting fixture can be suppressed. As a result, lighting fixtures with different lengths can be stably lifted by suppressing their rotation, and the same lifting device is shared without the need for design changes such as changing the lifting wire interval for each lighting fixture. Therefore, the cost can be reduced. In addition, the delivery time can be shortened by reducing the design change period.

The block diagram of the raising / lowering type lighting fixture which concerns on one Embodiment of this invention. The top view which looked at the lighting fixture main body in the lighting fixture from the upper direction. The block diagram of the raising / lowering type lighting fixture corresponding to the conventional long type lighting fixture. The block diagram of the raising / lowering type lighting fixture corresponding to the conventional short type lighting fixture. The block diagram of the raising / lowering type lighting fixture which combined the short raising / lowering apparatus with the conventional long type lighting fixture.

  Hereinafter, the elevating lighting apparatus according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG.1 and FIG.2 shows the structure of the raising / lowering lighting fixture of this embodiment. The lifting / lowering lighting fixture includes a lifting / lowering device 1 provided on the ceiling surface 200, a lighting fixture 2 that is lifted / lowered by the lifting / lowering device 1, and a rotation prevention unit 3 that suppresses rotation of the lighting fixture 2.

  The lifting device 1 changes the direction of the lifting wire 11 that suspends the lighting fixture 2, the lifting reel 12 that winds and unwinds the two lifting wires 11, the motor 13 that rotates the lifting reel 12, and the lifting wire 11. A pair of pulleys 14, a cord 15 for supplying power to the luminaire 2, a cord reel (not shown) for winding the cord 15, a control unit (not shown) for controlling the motor 13, and these are housed. And a storage box 16 fixed to the ceiling surface 200. In this lifting device 1, the lifting reel 12 is wound by rotation in one direction of the motor 13, and is unwound by rotation in the other direction, and the lighting fixture 2 is lifted by winding operation of the lifting wire 11, The lighting fixture 2 is lowered by the releasing operation. The cord 15 is connected to the lighting fixture 2 and supplies power to the power circuit of the lighting fixture 2. In addition, this power connection can be performed by contact contact etc. other than a cord connection, for example.

  The luminaire 2 includes a luminaire main body 21 (luminaire luminaire main body), a light source 22 to which the luminaire main body 21 is fixed, and a power supply circuit (not shown) for the light source 22 disposed in the luminaire main body 21. The lighting fixture 2 has a plurality of light sources 22 arranged in a horizontal row, and the fixture main body 21 has a horizontally long configuration. The luminaire 2 is lifted and lowered by being suspended by a lifting wire 11 connected to a wire mounting portion 23 disposed substantially at the center of the fixture body 21.

  A pair of anti-rotation portions 3 are provided corresponding to both sides of the lighting device 2 in the horizontal direction (longitudinal direction), and the anti-rotation wire 31 for preventing the rotation of the lighting device 2 and the anti-rotation wire 31 are wound up and unwound. A rotation preventing reel 32 and a reel mounting base 33 for mounting them are provided. The anti-rotation wire 31 is a peripheral part of the instrument main body 21 away from the fixing part of the lifting / lowering wire 11, and is fixed near both ends of the instrument main body 21 in the longitudinal direction.

  The anti-reeler 32 is disposed away from the lifting reel 12 and is disposed on the ceiling surface 200 so as to correspond to the wire interval between the two anti-rotation wires 31 fixed to the instrument body 21. . Here, the anti-reeler 32 includes, for example, a spring-type automatic wire winding device, and the drawn wire is automatically wound by the spring force when the drawing load is removed. The rotation prevention reel 32 winds and unwinds the rotation prevention wire 31 in accordance with the raising and lowering of the luminaire 2 so that the rotation prevention wire 31 is not always loosened. However, here, the anti-rotation reel 32 does not have the ability to raise and lower the luminaire 2 itself. The reel mount 33 is attached to the top surface 200 so that the anti-rotation reel 32 is disposed as described above.

  The interval between the two anti-rotation reels 32 is increased or decreased in accordance with the length of the instrument body 21. For example, in the case of an instrument body that is longer than the instrument body 21 that is long in one direction, the rotation prevention wires 31 and the rotation prevention reels 32 are attached with wider intervals.

  In the lifting / lowering lighting fixture configured as described above, the fixture body 21 is suspended by the two lifting wires 11 at substantially the center thereof, and supported by the rotation preventing wires 31 in the vicinity of both ends thereof. At this time, the two lifting wires 11 are wound and unwound by the lifting reel 12 in accordance with the lifting and lowering of the lighting fixture 2, and at the same time, the rotation preventing wire 31 is wound and unwound by the rotation preventing reel 32. . Thereby, the raising / lowering wire 11 and the rotation preventing wire 31 always change by substantially the same length, so that the fixture body 21 is always kept substantially horizontal even when the lighting fixture 2 is raised and lowered. Therefore, the balance between the elevating wire 11 and the rotation preventing wire 31 is always kept good.

  Thus, according to the lifting / lowering lighting fixture of this embodiment, since the lifting / lowering wire 11 and the rotation preventing wire 31 are both wound and unwound in a state of being separated from each other, the lighting fixture 2 that is long in one direction is used. Even if the lifting / lowering wire 11 is fixed to the center of the fixture body 21, the lighting fixture 2 can be prevented from rotating in the horizontal direction. As a result, when the lighting device 2 is easy to rotate, the lifting device 1 is expensive, such as changing the interval of the lifting wires 11 for each lighting device having a different length by suppressing the rotation using a rotation preventing wire. Therefore, it is possible to share the lifting device 1. Therefore, the cost of design change is not incurred and the cost can be reduced, and the delivery time can be shortened by reducing the design period.

  In addition, this invention is not limited to the structure of the said embodiment, A various deformation | transformation is possible suitably in the range which does not change the meaning of invention. For example, in the above-described embodiment, the case where the number of the lifting / lowering wires 11 is two has been described. The anti-reeler 32 uses a spring-type automatic take-up device, but uses a separate take-up motor to wind and unwind the anti-rotation wire 31 in synchronization with the lifting / lowering wire 11 motor. It is also possible to cause the rotation prevention reel 32 to bear a part of the suspension load of the lighting fixture by the power of the winding motor.

DESCRIPTION OF SYMBOLS 1 Lifting device 11 Lifting wire 12 Lifting reel 2 Lighting fixture 21 Appliance main body (luminaire main body)
3 Anti-rotation part 31 Anti-rotation wire 32 Anti-rotation reeler

Claims (1)

In a lifting / lowering lighting device comprising a lifting / lowering reel provided on a ceiling surface, a lifting / lowering wire wound and unwound by the lifting / lowering reel, and a lighting device main body that is lifted and lowered by the lifting / lowering wire.
The elevating wire is fixed to the approximate center of the luminaire body,
An anti-rotation wire that is fixed to a peripheral part away from the fixing part of the lifting wire in the luminaire body, and prevents rotation of the luminaire body;
An elevating-type lighting apparatus comprising: an anti-rotation reel disposed away from the elevating reel and winding and unwinding the anti-rotation wire.

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