JP3938633B2 - Lighting equipment with elevator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elevator-equipped lighting fixture that can be suspended up and down.
[0002]
[Prior art]
Conventionally, various lighting fixtures with an elevator that can be lifted up and down are commercially available. For example, Japanese Patent Laid-Open No. 9-288910 discloses a lighting fixture 80 and a hanging fixture for the lighting fixture 80 as shown in FIG. A wire W8 and an elevator 81 having a spiral cord C8 provided around the wire W8 which is the center of the suspension are disclosed.
[0003]
Further, as shown in FIG. 12, there are two wires W91 and W92 that are separated by a predetermined distance for hanging the lighting fixture, and the cord C9 of the lighting fixture is arranged at the center of the two wires W91 and W92. An elevator 91 has been proposed.
[0004]
[Problems to be solved by the invention]
In the elevator 81 shown in FIG. 11, the illuminating device 80 can be suspended straight along the vertical direction by disposing the spiral cord C8 around the wire W8 that is the center of suspension. However, since the spiral cord C8 is disposed between the upper part of the lighting fixture 80 and the lower portion of the elevator 81, the lighting cord 80 is raised to the vicinity of the lower portion of the elevator 81 by being disturbed by the spiral cord C8 itself. The range in which the lighting fixture 80 can be raised and lowered is limited.
[0005]
On the other hand, in the elevator 91 shown in FIG. 12, since the cord reel 95 for winding and unwinding the cord C9 from the lighting fixture is provided inside the elevator 91, the lighting fixture is obstructed by the cord C9. It becomes possible to raise to the lower part vicinity of the elevator 91 without. In addition, since the luminaire is suspended by two wires W91 and W92 separated by a predetermined distance, and the cord C9 is arranged at the center of the two wires W91 and W92, the luminaire is straightened along the vertical direction. Can be hung. However, as can be seen from the figure, there is a problem that the mechanism of the elevator 91 becomes large and the cost increases accordingly.
[0006]
The present invention has been made in view of the above circumstances, and provides a compact and inexpensive lighting fixture with an elevator, in which the lighting fixture can be hung straight along the vertical direction, and the range in which the lighting fixture can be raised and lowered is wide. For the purpose.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a lighting fixture, a reeler that hangs the lighting fixture up and down with a wire, and a cord disposed from the reeler so that a cord from the lighting fixture can be wound and unwound. And a cord reel that always pulls the cord upward, and a tilt prevention means that is provided on the lighting fixture side and prevents the lighting fixture from tilting with respect to the vertical direction. As the tilt preventing means, the wire is fixed to the wire at a position near the lighting device between the reeler and the lighting device, and the cord is loosened between the lighting device and fixed to the cord. Some are attached to the center of the upper end of the instrument, and the middle part of the cord and the middle part of the wire are inserted.
[0008]
In this configuration, the luminaire is hung straight along the vertical direction by the tilt prevention means. In addition, since the wire and the cord are wound by the reeler and the cord reel, respectively, the range in which the lighting device can be raised and lowered is widened. Furthermore, the configuration in which one reeler and one cord reel are used enables the elevator composed of the reeler and the cord reel to have a compact configuration and cost reduction.
[0009]
The tilt prevention means attached to the center of the upper end of the luminaire and through which the middle portion of the cord and the wire are inserted is cut along a groove formed in the center along the vertical direction and a part of the side surface from the center. The wire and the cord may be inserted through the portions, respectively , and may be rotatable about a vertical axis . According to this configuration, the lighting fixture comes to rest at a desired position around the vertical axis when suspended.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a perspective view of a lighting fixture with an elevator according to the first embodiment of the present invention, FIG. 2 is an exploded perspective view of the elevator, and the first embodiment will be described below using these drawings.
[0011]
As shown in FIG. 1, the lighting fixture with an elevator includes a lighting fixture 10 having a parabolic shape, an elevator 11 that suspends the lighting fixture 10 from a ceiling so that the lighting fixture 10 can be raised and lowered, and a hanging state adjustment of the lighting fixture 10. An adjustment tool (tilt prevention means) 19 is used.
[0012]
As shown in FIG. 2, the elevator 11 has a hooking ceiling 12 a connected to an electric wire (not shown) preliminarily wired from an external power source, and screw parts 12 b provided on both sides thereof, and a mounting bracket 12 attached to the ceiling. And a U-shaped elevator body 13 screwed to the mounting bracket 12 by a cap nut N corresponding to each screw portion 12b, and fixed or integrally formed with the elevator body 13, and the lighting fixture 10 is lifted and lowered by the wire W1. A reel 14 that is freely suspended, and a cord reel that is fixedly or integrally formed with the elevator main body 13 and is disposed in the vicinity of the reeler 14 and is connected to the luminaire 10 so that the cord C1 can be wound and unwound. 15 is connected to the other end of the cord C2 corresponding to the other end of the cord C1, and the connecting device 1 electrically connects the other end to the hooking ceiling 12a. The through holes TH1 and TH2 for inserting the wire W1 and the cord C1 are respectively formed in the center of the bottom portion and in the vicinity thereof, and close the elevator main body 13, the reel 14, the cord reel 15 and the connecting device 16 attached to the mounting bracket 12. And a cover 17. The elevator body 13 is formed with through holes 13a for inserting the respective screw portions 12b.
[0013]
3 (a) and 3 (b) are perspective views before and after the adjustment tool 19 is mounted, respectively. The adjustment tool 19 has a mirror symmetrical shape in which one end side (left side in the figure) is connected to and separated from the other end side. The members 191 and 192 are configured. Grooves 191a and 192a constituting holes for fixing the cord C1 are formed on the contact surface side of one end side of the members 191 and 192, respectively, while the contact surface side of the other end side is for fixing the wire W1. Grooves 191b and 192b constituting the holes are formed.
[0014]
Here, the procedure and operation of attaching and fixing the adjuster 19 to the cord C1 and the wire W1 will be described with further reference to FIGS. First, if the adjuster 19 is not used, the cord C1 is always pulled upward by the cord reel 15, so that the luminaire 10 is pulled upward by the cord C1 as shown in FIG. As shown in FIG.
[0015]
Therefore, as shown in FIG. 3, while the wire W1 near the luminaire 10 is sandwiched between the grooves 191b and 192b, the cord C1 is sandwiched between the luminaires 191a and 192a with the luminaire 10 side slightly loosened (FIG. 3 ( b)), the adjustment tool 19 is fixed to the cord C1 and the wire W1.
[0016]
As a result, as shown in FIG. 5, even if the cord C1 is pulled upward by the cord reel 15, the luminaire 10 is only loosened as indicated by a two-dot chain line. Since it is not pulled upward, it is suspended straight in the vertical direction.
[0017]
Next, the attachment procedure of the lighting fixture with elevator will be described. First, an electric wire previously wired from an external power source is connected to the hooking ceiling 12a, and then the attachment fitting 12 is attached to the ceiling.
[0018]
Next, the connecting device 16 is connected to the hooking ceiling 12a, and then the screw portion 12b is inserted into each through hole 13a of the elevator body 13 and the elevator body 13 is attached to the mounting bracket 12 using two cap nuts N. Screw on. Thereby, while the elevator 11 is attached to a ceiling, the lighting fixture 10 is suspended from the elevator 11 via the code | cord | chord C1 and the wire W1 so that raising / lowering is possible.
[0019]
Next, the cover 17 is moved to the ceiling side, and the elevator main body 13, the reeler 14, the cord reel 15, and the connection tool 16 attached to the mounting bracket 12 are closed.
[0020]
Next, while holding the wire W1 in the vicinity of the lighting fixture 10 in the grooves 191b and 192b of the adjustment tool 19, the cord C1 is put in the grooves 191a and 192a and the lighting fixture 10 side is slightly loosened, and the adjustment tool 19 is set in the code C1. And it fixes to the wire W1.
[0021]
As described above, according to the first embodiment, the adjustment tool 19 can suspend the lighting fixture 10 along the vertical direction.
[0022]
In addition, since the lighting fixture 10 is suspended from the ceiling via the cord C1 and the wire W1 wound in the elevator 11, it is possible to realize a wide ascending / descending range of the lighting fixture 10.
[0023]
Further, the configuration using one reeler 14 and one cord reel 15 makes it possible to configure the elevator 11 in a compact manner, and to reduce the cost of the lighting fixture with the elevator.
[0024]
FIG. 6 is a perspective view of a lighting fixture with an elevator according to a second embodiment of the present invention, and FIGS. 7A and 7B are perspective views before and after mounting of the adjusting tool of the second embodiment, respectively. A second embodiment will be described with reference to FIG.
[0025]
As shown in FIG. 6, the lighting fixture with an elevator includes the elevator 11 as in the first embodiment, and a lighting fixture 20 having a box-shaped bulk that is not symmetrical with respect to the vertical axis. An adjustment tool (tilt prevention means) 29 having a shape different from that of the adjustment tool 19 of the first embodiment is provided.
[0026]
As shown in FIG. 7, the adjuster 29 includes a columnar adjuster main body 291 that is V-shaped in the vertical direction, and a protrusion 292 that is integrally formed on the upper surface of the adjuster main body 291. ing. The adjustment tool main body 291 has a groove 291a along the vertical direction as a center, and a groove 291b for fitting into the periphery of the hole 20a formed at the center of the upper end of the lighting fixture 20.
[0027]
The adjustment tool 29 configured in this manner is attached in advance to the center of the upper end of the lighting fixture 20 by fitting the groove 291b into the periphery of the hole 20a, and the groove 291a as a drawing point of the wire W1 and the cord C1 and a V-shaped cut. The wire W1 and the cord C1 are inserted through the portions that are formed. Moreover, the adjustment tool 29 attached to the lighting fixture 20 can be rotated around an axis in the vertical direction.
[0028]
Here, the adjustment method and operation of the adjustment tool 29 will be further described with reference to FIGS. 8 to 10. As shown in FIG. 8, the luminaire 20 is mounted on the axis A <b> 1 of the elevator 11 before the adjustment tool 29 is adjusted. On the other hand, the axis A2 of the lighting fixture 20 may be suspended at an angle α to be stationary.
[0029]
At this time, for example, when it is desired to suspend the lighting fixture 20 with the axis A1 and the axis A2 aligned, as shown in FIG. 9B, the projection 292 of the adjustment tool 29 is turned with a finger to turn the axis A1 and the axis A2. As shown in FIG. 10, it is possible to suspend the lighting fixture 20 in a state where the axis A1 and the axis A2 are aligned.
[0030]
As described above, according to the second embodiment, similarly to the first embodiment, it is possible to realize a wide range in which the lighting fixture 20 can be raised and lowered, a compact configuration of the elevator 11 and cost reduction of the lighting fixture with an elevator, and an adjustment tool. Since the lighting fixture 20 is suspended at almost one point by 29, the lighting fixture 20 can be suspended straight along the vertical direction.
[0031]
Moreover, it becomes possible to make the lighting fixture 20 stand still in the desired position around the vertical axis at the time of suspension (the twist correction effect of the lighting fixture).
[0032]
In the first and second embodiments, lighting fixtures having parabolic and box-shaped bulks are used, respectively, but lighting fixtures having bulks of other desired shapes are also used. Needless to say, it is good.
[0033]
Moreover, in the said 1st and 2nd embodiment, although the structure which uses the cap nut N is used, the structure which uses a normal nut may be sufficient.
[0034]
【The invention's effect】
As is clear from the above, according to the first or second aspect of the invention, the lighting fixture can be suspended straight along the vertical direction. In addition, it is possible to realize a wide ascending / descending range of the lighting fixture. Furthermore, it is possible to make the elevator composed of the reeler and the cord reel compact, and to reduce the cost.
[0035]
According to the third aspect of the present invention, the lighting fixture can be stopped at a desired position around the vertical axis when suspended.
[Brief description of the drawings]
FIG. 1 is a perspective view of a lighting fixture with an elevator according to a first embodiment of the present invention.
FIG. 2 is an exploded perspective view of the elevator shown in FIG.
FIGS. 3A and 3B are perspective views before and after attachment of the adjustment tool, respectively.
FIG. 4 is a diagram illustrating a state of inclination of the lighting fixture with respect to a vertical direction that may occur when the adjustment tool is not used.
5 is a diagram illustrating a state in which the tilt of FIG. 4 is prevented by the adjustment tool.
FIG. 6 is a perspective view of a lighting fixture with an elevator according to a second embodiment of the present invention.
FIGS. 7A and 7B are perspective views of the second embodiment before and after attachment of the adjustment tool, respectively.
FIG. 8 is a diagram showing a suspended state of a lighting fixture that may occur before adjustment of the adjustment tool.
FIGS. 9A and 9B are diagrams illustrating an adjustment method of the adjustment tool viewed from the side and from the top, respectively.
FIG. 10 is a diagram showing a suspended state of a lighting fixture that has been adjusted to a desired position by adjusting an adjustment tool.
FIGS. 11A and 11B are diagrams showing an example of a conventional lighting fixture with an elevator, where FIG. 11A is a perspective view of the lighting fixture with an elevator, and FIG. 11B is an exploded perspective view of the elevator provided in the lighting fixture with an elevator.
FIG. 12 is an exploded view showing another example of a conventional lighting fixture with an elevator.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Lighting fixture 11 Elevator 12 Mounting bracket 13 Elevator main body 14 Reeler 15 Cord reel 16 Connection tool 17 Cover 19 Adjustment tool W1 Wire C1 cord

Claims (3)

And lighting equipment, and Leila hanging freely up and down the front Symbol luminaire wire, it is disposed in the vicinity of the front Symbol Leela, the code from the luminaire always upward code as well as winding and unwinding freely accommodated A tensioning cord reel; and an inclination preventing means that is fixed to the wire at a position near the lighting fixture between the reeler and the lighting fixture, and is loosened and fixed to the cord with the lighting fixture. A lighting fixture with an elevator characterized by that. A lighting fixture, a reeler that hangs the lighting fixture up and down with a wire, and a cord that is disposed in the vicinity of the reeler and that retracts and unwinds the cord from the lighting fixture and always pulls the cord upward reel and, middle and temperature disembarkation with luminaire you characterized in that the intermediate portion of the wire and a tilt prevention means is inserted in the code attached to the top center of the luminaire. The tilt prevention means is configured such that the wire and the cord are inserted into a groove formed in the center along the vertical direction and a portion cut from the center to a part of the side surface, respectively, and can rotate around the vertical axis. The lighting fixture with an elevator according to claim 2, wherein

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