JP6115382B2 - Lighting device and fall prevention wire - Google Patents

Description

  The present invention relates to a lighting device and a fall prevention wire for preventing a lamp with a cap from falling.

  2. Description of the Related Art Conventionally, in a lighting device including a lamp with a cap and a lighting fixture body to which the lamp with the cap is tightened and attached via the cap, the lamp with the cap and the lighting fixture body are connected by a wire, There is known one that prevents the fall of the battery (for example, see Patent Document 1).

JP 2013-84439 A

By the way, in the said conventional illuminating device, although the fall of the lamp | ramp with a nozzle | cap | die from a lighting fixture main body can be prevented with the said wire, the loosening | combination of the coupling | bonding of a nozzle | cap | die and a lighting fixture main body which arises before the fall cannot be prevented.
The present invention has been made in view of the above-described circumstances, and provides an illumination device and a fall prevention wire that can prevent a lamp with a cap from falling and also prevent loosening of a lamp with a cap. Objective.

In order to achieve the above object, the present invention provides a lamp with a base, a luminaire main body to which the lamp with a base can be attached, one end connected to the lamp with a base, and the other end connected to the luminaire main body. An intermediate portion of the wire between the one end and the other end is connected to the lighting fixture body, and the wire is connected to the one end so as to regulate the rotation of the base of the lamp with the base. It is provided in a state of being stretched between the intermediate portion.
In the above-described configuration, the lighting fixture main body may have a shade, and the intermediate portion may be connected to an edge of the shade.
In the above-described configuration, the lamp with the base includes an LED light source and a housing that supports the LED light source, the housing is provided with a hole, and the one end is connected to the hole. Good.

In the above-described configuration, the intermediate portion may be connected to the luminaire main body via a fixture, and the fixture may be attachable.
In the above-described configuration, the one end may be connected to a place away from the rotation axis of the lamp with the base, and the intermediate portion may be connected to the luminaire main body at a substantially shortest distance from the one end in a plan view. Good.
In the above-described configuration, the one end may be connected to a location away from the rotation axis of the lamp with the base, and the intermediate portion may be connected to a position where the lamp with the base is pulled in the tightening direction of the base.

The present invention also provides a fall prevention wire for preventing a lamp with a cap installed on a luminaire body having a lamp socket from falling, and has a lamp connecting portion to which the lamp with a cap is connected at one end. A fixture having a fixture connecting portion to which the lighting fixture main body is connected at the other end, and connecting the intermediate portion to the lighting fixture main body at an intermediate portion between the lamp connecting portion and the fixture connecting portion. A fall prevention wire is provided.
In the above-described configuration, the one end has a first loop portion, the other end has a second loop portion, and the first loop portion has a size through which the other end can pass. The second loop portion may be provided with a locking tool.

  ADVANTAGE OF THE INVENTION According to this invention, the illuminating device which can prevent the looseness | combination of a lamp | ramp with a nozzle | cap | die, and a fall prevention wire can be provided.

It is a perspective view which shows the structure of the illuminating device for high ceilings which is one aspect | mode of the illuminating device which concerns on this embodiment. It is a figure which shows an illuminating device, FIG. 2 (a) is a side view, FIG.2 (b) is the top view seen from the downward direction. It is a perspective view of a lamp. It is a figure which shows a fall prevention wire. It is a figure which shows a fall prevention wire. It is the top view which looked at the illuminating device from the downward direction. It is VII-VII sectional drawing of FIG. It is a perspective view which shows the structure of the illuminating device in the modification of embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view illustrating a configuration of a lighting device 1 for a high ceiling, which is an aspect of the lighting device according to the present embodiment. 2A and 2B are diagrams illustrating the lighting device 1, in which FIG. 2A is a side view and FIG. 2B is a plan view as viewed from below.
Here, the illuminating device of the present invention is not limited to a high ceiling, and may illuminate, for example, a signboard or a wall surface, as long as it is installed in a so-called downward lighting state that illuminates an irradiation object in the vertical direction. It may illuminate the object.

  The luminaire 1 includes a luminaire body 2 installed so as to be suspended from the ceiling, a lamp 3 attached to the luminaire body 2, the lamp 3 and the luminaire body 2, and the fall of the lamp 3 The fall prevention wire 4 is provided. The luminaire main body 2 includes a holder 5 to which the lamp 3 is mounted, and a shade-like shade 6 that is attached to the holder 5 and reflects light emitted from the lamp 3 downward.

The holder 5 has a holder main body 7 formed in a vertically long cylindrical shape, and a ceiling fixing portion 8 provided at the upper end of the holder main body 7 and directly fixed to the ceiling.
A socket portion (lamp socket) (not shown) to which the lamp 3 inserted from the opening of the lower end 7 a of the holder body 7 is fastened is provided in the cylinder of the holder body 7. An upper connection portion 7 b to which the fall prevention wire 4 is connected is formed on the upper portion of the holder body 7. The upper connecting portion 7b is formed by providing a hole portion 7c in a plate portion protruding upward from the peripheral edge portion of the upper surface of the holder body 7, and the fall prevention wire 4 is passed through the hole portion 7c.

The shade 6 is formed in a substantially bowl shape whose outer diameter increases toward the lower end side, and includes a reflecting surface 6a having a rotating solid surface on the inner surface thereof. The light from the lamp 3 is reflected by the reflecting surface 6 a and is irradiated downward from the opening 6 b at the lower end of the shade 6. The shade 6 is arranged so that its axis is substantially coincident with the axes of the holder 5 and the lamp 3, and a lamp insertion opening (not shown) through which the lamp 3 is inserted is provided at the top of the shade 6. Yes. The lamp 3 is housed in the shade 6, and the lower end of the lamp 3 is located in the upper part of the shade 6.
A flange 6c formed by bending the lower end of the shade 6 radially outward is provided at the peripheral edge (edge) of the opening 6b of the shade 6, and the rigidity of the shade 6 is improved by the flange 6c. doing.

FIG. 3 is a perspective view of the lamp 3.
The lamp 3 is an LED lamp, and has a cylindrical portion 9 inserted into a cylinder of the holder body 7, a base 10 provided at one end of the cylindrical portion 9, and a disk shape provided at the other end of the cylindrical portion 9. Base plate 11 and a light emitting unit 12 provided on the base plate 11.
The light emitting unit 12 includes an LED substrate (not shown) supported by the base plate 11, a plurality of LED elements 13 as light sources provided on the LED substrate, and a cover 14 that covers the LED substrate and the LED elements 13. . A power converter, a drive circuit, and the like (not shown) for lighting the LED element 13 are accommodated in the cylindrical portion 9.
Note that the power conversion device, the drive circuit, and the like may not be built in the lamp 3 but may be installed in another place.

On the back surface of the base plate 11, a plurality of heat radiation fins 15 are provided radially around the cylindrical portion 9 around the cylindrical portion 9. The heat radiation fin 15 promotes heat radiation of the light emitting section 12 and improves the rigidity of the base plate 11. The cylindrical portion 9, the base plate 11, and the heat radiating fins 15 constitute a housing 3 a of the lamp 3.
Each radiating fin 15 has a protruding portion 15a that protrudes radially outward from the peripheral edge of the base plate 11 in a plan view, and several protruding portions 15a have adjacent protruding portions 15a and 15a in the circumferential direction. A connecting plate-like lower connecting portion 16 is provided. The lower connection portion 16 has a hole portion 16a penetrating the lower connection portion 16, and the fall prevention wire 4 is passed through the hole portion 16a. The lower connecting portions 16 are provided at a plurality of locations side by side in the circumferential direction of the base plate 11.

  The base 10 has a male screw portion 10 a on the outer peripheral surface, and the male screw portion 10 a is coupled to a female screw portion (not shown) of the socket portion of the holder 5. When attaching the lamp 3 to the luminaire main body 2, the cylindrical portion 9 of the lamp 3 is inserted into the cylinder of the holder 5, and the lamp 3 is rotated in the clockwise fastening direction X of FIG. The base 10 is fastened to the female thread portion of the socket portion, and the lamp 3 is fixed to the holder 5.

4 and 5 are diagrams showing the fall prevention wire 4. FIG. 5 shows a state in which a part of the fall prevention wire 4 has been removed.
The fall prevention wire 4 includes a metal wire body 17, a mounting hook 18 that connects the wire body 17 to the luminaire main body 2, and a fixture 19 that fixes the wire body 17 to the shade 6.
The wire body 17 includes a first loop portion 21 formed at one end of the wire body 17 and connected to the lamp 3, and a first connection portion formed at the other end of the wire body 17 and connected to the lighting fixture body 2. 2 loop portions 22. Further, the wire body 17 includes a third loop portion 23 that is formed at an intermediate portion between the first loop portion 21 and the second loop portion 22 on the wire body 17.

The wire body 17 is composed of a single wire, and a plurality of loop portions are formed by bending and caulking a single wire at a predetermined location. Specifically, the first loop portion 21 is bent at one end of the wire body 17 in a loop shape and is crimped by a caulking portion 24, and the second loop portion 22 is bent at the other end of the wire body 17 in a loop shape. It is caulked at the caulking portion 25. The third loop portion 23 is caulked by two caulking portions 26 and 26 by bending an intermediate portion of the wire body 17 in a loop shape.
The diameter of the loop portion is the largest in the second loop portion 22, the first loop portion 21 is smaller than the second loop portion 22, and the third loop portion 23 is the smallest. In addition, the inner diameter of the first loop portion 21 is formed such that the folded third loop portion 23 and second loop portion 22 can pass through the first loop portion 21.

  The attachment hook 18 is an annular hook whose openable portion 18a is closed by an elastic force. The openable part 18a is opened by pressing the openable part 18a from the outside, and the second loop part 22 is connected to the mounting hook 18 via the openable part 18a.

FIG. 6 is a plan view of the lighting device 1 as viewed from below. 7 is a cross-sectional view taken along the line VII-VII in FIG.
As shown in FIGS. 1, 4, 6, and 7, a fixture 19 is attached to the third loop portion 23, and the third loop portion 23 includes a flange portion 6 c via the fixture 19. It is fixed to the edge of the lower end of the shade 6.
The section of the wire body 17 from the first loop portion 21 to the third loop portion 23 is provided with an anti-rotation wire portion 17a that connects the lamp 3 and the shade 6 to prevent loosening of the cap 10 of the lamp 3. Configure.

The fixture 19 includes a pair of an outer fixing plate 27 and an inner fixing plate 28 that are provided so as to sandwich the shade 6 from the outside and the inside, and a screw 29 that couples the outer fixing plate 27 and the inner fixing plate 28.
The outer fixing plate 27 is a plate attached along the outer surface of the lower end portion of the shade 6, and has a bent portion 27a that bends in a crank shape along the shape of the flange portion 6c. The outer fixing plate 27 includes a wire support portion 27b extending downward from the flange portion 6c from the bent portion 27a, and a hole 27c through which a screw 29 is inserted is formed in the wire support portion 27b.

  The inner fixing plate 28 is a plate attached along the inner surface of the lower end portion of the shade 6 and has a bent portion 28a that bends in a crank shape along the shape of the flange portion 6c. The inner fixing plate 28 includes a wire support portion 28b extending downward from the flange portion 6c from the bent portion 28a, and a screw hole portion 28c to which the screw 29 is fastened is formed in the wire support portion 28b. A protrusion 28d that protrudes toward the outer fixing plate 27 is formed at the lower end of the wire support 28b, and the protrusion 28d contacts the wire support 27b even when the screw 29 is fastened. Thus, a gap 29 is formed between the wire support portions 27b and 28b.

The third loop portion 23 is connected to the fixture 19 by inserting the third loop portion 23 into the screw 29 passed between the wire support portions 27 b and 28 b in the gap 29. The gap 29 is formed to be slightly larger than the diameter of the wire body 17, and the third loop portion 23 can move to some extent within the gap 29. For this reason, when fastening the screw 29, it is not necessary to pay special attention to the position of the third loop portion 23 in the rotational direction, and attachment can be performed easily. Moreover, since the fixing | fixed tool 19 is fixed to the shade 6 so that the bending parts 27a and 28a may be hooked in the up-down direction with respect to the flange part 6c, the fixing tool 19 can be fixed firmly.
The fixture 19 can be attached to the shade 6 by adjusting the fastening of the screw 29.

Here, an example of a procedure for attaching the lamp 3 and the fall prevention wire 4 will be described with reference to FIGS. 1 and 4 to 6.
First, the cylindrical portion 9 of the lamp 3 is inserted into the cylinder of the holder 5, the lamp 3 is rotated in the clockwise fastening direction X in FIG. Fasten to (not shown).
Next, the first loop portion 21 of the wire body 17 in the state of FIG. 5 is passed through the hole 16a of the lower connection portion 16 of the lamp 3, and the wire body 17 is largely bent to pass through the first loop portion 16a. The third loop portion 23 and the second loop portion 22 are sequentially passed through the loop portion 21. Thereby, the lamp connection loop part 30 (FIG. 1) as a lamp connection part connected to the hole 16a is formed at one end of the wire body 17. In this state, by pulling the third loop portion 23, the lamp connecting loop portion 30 has a small diameter and is fastened to the hole portion 16a, and is firmly fixed to the hole portion 16a.

Subsequently, the fixture 19 is set on the third loop portion 23, and the third loop portion 23 is fixed to the edge of the lower end portion of the shade 6 via the fixture 19. The position where the third loop portion 23 is fixed is a position where the rotation preventing wire portion 17a between the lamp coupling loop portion 30 and the third loop portion 23 is approximately the shortest distance in the plan view of FIG. . That is, the rotation preventing wire portion 17a extends linearly so as to substantially coincide with a virtual straight line L passing through the rotation axis C at the center of the lamp 3 and the hole portion 16a. Further, the rotation preventing wire portion 17a is stretched so that there is no slack in a state where the space between the lower connection portion 16 and the fixture 19 is tight. The length of the anti-rotation wire portion 17a is set to a length that is taut when the third loop portion 23 is connected to the edge of the lower end portion of the shade 6 at a substantially shortest distance.
Thereafter, the second loop portion 22 is drawn upward to the outside of the shade 6, the second loop portion 22 is passed through the hole 7 c of the upper connection portion 7 b of the lighting fixture body 2, and the second loop portion is attached by the attachment hook 18. In the part 22, the 2nd loop part 22 is connected to the lighting fixture main body 2 by connecting the part 22a which passed the hole 7c, and the part 22b before passing the hole 7c. Since the second loop portion 22 is connected to the hole 7c on the outer peripheral side of the luminaire main body 2, the second loop portion 22 does not rotate relative to the outer periphery of the luminaire main body 2 and idle. .

In this way, the rotation preventing wire portion 17a connects the lamp 3 and the edge of the lower end portion of the shade 6 with a substantially shortest distance and a pinned state, so that the rotation preventing wire portion 17a is connected to the base 10 of the lamp 3. A tension T1 substantially perpendicular to the direction Y (FIG. 6) for loosening the fastening is generated. Since the tension T1 is generated, even if vibration or the like is applied to the lamp 3, the rotation of the lamp 3 can be restricted, so that loosening of the cap 10 of the lamp 3 can be prevented. Even if the fastening of the base 10 of the lamp 3 is loosened due to factors such as the fixing device 19 being removed, the second loop portion 22 is connected to the luminaire main body 2, so Can be prevented from falling.
Further, since the lamp coupling loop portion 30 of the fall prevention wire 4 is connected to the outer peripheral portion of the lamp 3 away from the rotation axis C of the rotation of the lamp 3, it effectively counters the force in the direction Y by the tension T1. It is possible to prevent loosening of the base 10.

Further, since the rotation prevention wire portion 17a is provided in a part of the fall prevention wire 4 for preventing the lamp 3 from falling, and the rotation prevention wire portion 17a is integrally provided in a part of one wire body 17, the lamp The fall prevention wire 4 which can prevent the fall and rotation of 3 can be realized with a simple configuration.
Further, since the third loop portion 23 is connected to the edge of the open portion 6b at the lower end of the shade 6 whose rigidity is ensured by the flange portion 6c, the tension T1 can be effectively generated in the anti-rotation wire portion 17a. It is possible to prevent loosening of the base 10.

Here, the rotation preventing wire portion 17a may be connected so as to generate tension in a direction opposite to the direction Y in which the fastening of the base 10 is loosened. For example, as shown by a two-dot chain line in FIG. 6, the third loop portion is located at a position where the tension T2 is generated in a direction substantially orthogonal to the straight line L and tightening the base 10, that is, in a direction substantially coincident with the fastening direction X. 23 may be connected. In FIG. 6, the angle formed between the anti-rotation wire portion 17a that generates the tension T2 and the straight line L is approximately 90 °. This angle is an angle at which the tension of the anti-rotation wire portion 17a acts in the fastening direction X. Any angle may be used, and the angle may be smaller than 90 ° or larger than 90 °. Furthermore, by finely adjusting the fixing position of the third loop portion 23 with respect to the edge of the shade 6 so that the tension can be effectively generated, the tension can be controlled without strictly managing the length of the anti-rotation wire portion 17a. Can be prevented to prevent the base 10 from loosening.
Thus, by providing the rotation preventing wire portion 17a so that the tension T2 is generated in the fastening direction of the base 10, it is possible to effectively prevent the fastening of the base 10 from being loosened.

  As described above, according to the embodiment to which the present invention is applied, the lighting device 1 includes the lamp 3, the luminaire main body 2 to which the lamp 3 can be mounted, and the lamp connecting loop portion 30 at one end. The third loop portion of the middle part of the fall prevention wire 4 between the one end and the other end has the fall prevention wire 4 connected to the lighting fixture main body 2 and the second loop portion 22 at the other end connected. 23 is connected to the luminaire main body 2, and the fall prevention wire 4 is provided in a state of being stretched between the lamp coupling loop portion 30 and the third loop portion 23 so as to restrict the rotation of the base 10 of the lamp 3. It is done. Accordingly, the rotation of the base 10 of the lamp 3 can be prevented by the tension generated between the third loop portion 23 of the fall prevention wire 4 that connects the lamp 3 and the luminaire main body 2 and the lamp 3. The looseness of the coupling of the base 10 can be prevented, and the fall prevention wire 4 as a whole can prevent the lamp 3 from falling.

Moreover, since the lighting fixture main body 2 has the shade 6, and the 3rd loop part 23 is connected to the edge of the shade 6, while being able to connect the 3rd loop part 23 to the lighting fixture main body 2 easily, it is rigid. The third loop portion 23 can be effectively connected to the high edge.
In addition, the lamp 3 includes an LED element 13 and a housing 3a that supports the LED element 13. The housing 3a is provided with a hole 7c, and the lamp connecting loop 30 is connected to the hole 7c. One end of the fall prevention wire 4 can be easily connected to the lamp 3.
Moreover, since the 3rd loop part 23 is connected to the lighting fixture main body 2 via the fixing tool 19, and the fixing tool 19 is attachable, the tension | tensile_strength of the rotation prevention wire part 17a is changed by changing the position of the fixing tool 19. Can be adjusted easily and is easy to install.

Further, the lamp connecting loop portion 30 at one end is connected to a place away from the rotation axis C of the lamp 3, and the third loop portion 23 is connected to the shade 6 at a substantially shortest distance from the lamp connecting loop portion 30 in plan view. Therefore, it is possible to effectively generate tension with the short anti-rotation wire portion 17a to prevent the lamp 3 from loosening the base 10.
In addition, the lamp connecting loop portion 30 at one end is connected to a place away from the rotation axis C of the lamp 3, and the third loop portion 23 is connected to a position where the lamp 3 is pulled in the tightening direction of the base 10. The lamp 3 can be tightened in the tightening direction by the tension of the prevention wire portion 17a, and loosening of the cap 10 of the lamp 3 can be effectively prevented.

  Moreover, the fall prevention wire 4 has a lamp coupling loop portion 30 to which the lamp 3 is connected at one end, and has a second loop portion 22 to which the lighting fixture body 2 is connected at the other end, and the lamp coupling loop portion. A fixing tool 19 that connects the third loop portion 23 to the luminaire main body 2 is provided in the third loop portion 23 that is an intermediate portion between 30 and the second loop portion 22. Accordingly, the third loop portion 23 and the lamp coupling loop can be obtained by connecting the third loop portion 23 between the lamp coupling loop portion 30 and the second loop portion 22 to the lighting fixture body 2 by the fixture 19. Since the rotation of the base 10 of the lamp 3 can be prevented by the tension generated between the lamp 30 and the base 10 of the lamp 3, the coupling of the base 10 of the lamp 3 can be prevented from loosening. it can.

  The fall prevention wire 4 has a first loop portion 21 at one end and a second loop portion 22 at the other end, and the first loop portion 21 is large enough to pass the other end. A mounting hook 18 is provided on the second loop portion 22. For this reason, the lamp coupling loop portion 30 can be easily connected to the lamp 3 through the second loop portion 22 to the first loop portion 21, and the second loop portion 22 can be easily connected to the lighting fixture body 2 by the mounting hook 18. Can connect.

In addition, the said embodiment shows the one aspect | mode which applied this invention, Comprising: This invention is not limited to the said embodiment.
In the above-described embodiment, the fall prevention wire 4 has been described as including the third loop portion 23 at the intermediate portion between the first loop portion 21 and the second loop portion 22, but the present invention is not limited thereto. It is not limited to. The intermediate portion may not be formed in a loop shape as long as it can be fixed to the shade 6 by a fixing tool. For example, the linear intermediate portion of the fall prevention wire is simply connected to the outer fixing plate 27 and the inner fixing plate 28. It can also be set as the structure pinched between.
Further, in the above embodiment, the length of the rotation preventing wire portion 17a is set to a length that is taut when the third loop portion 23 is connected to the edge of the lower end portion of the shade 6 at a substantially shortest distance. However, the present invention is not limited to this. For example, the anti-rotation wire portion 17a has a structure that allows the length to be adjusted, and the fall prevention wire 17a adjusts the length of the anti-rotation wire portion 17a according to the shape of the lamp 3 and the shade 6 so that tension can be obtained. May be configured.

[Modification]
FIG. 8 is a perspective view showing a configuration of a lighting device in a modification of the embodiment. In addition, in this modification, about the part comprised similarly to the said embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.
As illustrated in FIG. 8, the lighting device 100 includes a lighting fixture body 102, a lamp 3, and a fall prevention wire 4 that connects the lamp 3 and the lighting fixture body 102 to prevent the lamp 3 from falling. The luminaire main body 102 has a shade 6.
The lamp 3 is inserted into a cylindrical holder body 107 of the luminaire main body 102, and the base 10 is fastened to a socket portion (not shown) in the holder body 107.

  The second loop portion 22 is provided so as to be wound around the outer periphery of the holder main body 107 and is connected to the luminaire main body 102 by connecting the distal end and the base end of the second loop portion 22 by the hook 118. The According to the configuration of the modified example, since the third loop portion 23 is fixed to the shade 6 by the fixing tool 19, the second loop portion 22 is provided so as to be simply wound around the outer periphery of the holder main body 107. Also, the fall prevention wire 4 can be prevented from rotating.

1,100 Lighting device 2,102 Lighting fixture body 3 Lamp (lamp with cap)
3a Case 4 Fall prevention wire (wire)
6 seed 10 base 13 LED element (LED light source)
16a Hole (hole)
18 Mounting hook (locking tool)
19 Fixing tool 21 First loop part 22 Second loop part (the other end, instrument connection part)
23 Third loop part (intermediate part)
30 Lamp connection loop (one end, lamp connection)
C Rotating shaft

Claims (8)

A lamp with a base, a luminaire main body to which the lamp with the base can be mounted, and a wire having one end connected to the lamp with the base and the other end connected to the luminaire main body,
An intermediate portion of the wire between the one end and the other end is connected to the luminaire main body, and the wire is between the one end and the intermediate portion so as to regulate the rotation of the base of the lamp with the base. The lighting device is provided in a state of being stretched by   The lighting device according to claim 1, wherein the lighting fixture body includes a shade, and the intermediate portion is connected to an edge of the shade.   The lamp with cap has an LED light source and a housing that supports the LED light source, the housing is provided with a hole, and the one end is connected to the hole. Or the illuminating device of 2.   The lighting device according to any one of claims 1 to 3, wherein the intermediate portion is connected to the luminaire main body through a fixture, and the fixture is freely mountable. The one end is connected to a place away from the rotation axis of the lamp with the cap;
The lighting device according to claim 1, wherein the intermediate portion is connected to the lighting fixture main body at a substantially shortest distance from the one end in a plan view. The one end is connected to a place away from the rotation axis of the lamp with the cap;
The lighting device according to any one of claims 1 to 4, wherein the intermediate portion is connected to a position where the lamp with cap is pulled in a tightening direction of the cap. A fall prevention wire for preventing a lamp with a cap installed on a lighting fixture body having a lamp socket from falling,
It has a lamp connecting part to which the lamp with cap is connected at one end, and has an appliance connecting part to which the lighting fixture body is connected at the other end,
A fall prevention wire characterized by having a fixture for connecting the intermediate portion to the luminaire main body at an intermediate portion between the lamp connecting portion and the fixture connecting portion.   The one end has a first loop portion, the other end has a second loop portion, the first loop portion has a size through which the other end can pass, and the second loop portion The fall prevention wire according to claim 7, wherein the loop portion is provided with a locking tool.

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