Lighting device

Abstract

To provide an attachment which can suppress a bending load of wiring of a lighting apparatus inserted into an attachment arm, and a lighting device.SOLUTION: An attachment 14 attaches a lighting apparatus 13 having an apparatus body 40 from which wiring 50 is drawn and a holding arm 41 for holding the apparatus body 40 to an attachment arm 12, the attachment arm 12 being fixed to a lighting object side by the lighting apparatus 13 at one end part, the other end part being located apart from the lighting object, the wiring 50 being inserted into one end part side from the other end part. The attachment 14 comprises a first fixing part 63 and a second fixing part 64. The fixing part 63 is fixed to the attachment arm 12. The second fixing part 64 is fixed so that the holding arm 41 extends to a side opposite to the lighting object with respect to the other end part of the attachment arm 12.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] Embodiments of the present invention relate to light lighting devices.

Background Art

[0002] Conventionally, there is a lighting device that uses a lighting fixture such as a projector to illuminate, for example, a signboard as a lighting target. In such a lighting device, a long mounting arm, which is an optional component, may be used. The base end portion, which is one end of the mounting arm, is attached to the signboard side, and a lighting fixture is attached to the tip end portion, which is the other end extending in a direction away from the signboard. The attached lighting fixture is installed by passing the lead wire through the tip end portion to the base end portion of the hollow mounting arm and connecting it on the base end portion side. Conventionally, a mounting attachment for attaching the holding arm of the lighting fixture to the tip end portion of the mounting arm is connected in a direction perpendicular to the holding arm of the lighting fixture with respect to the mounting arm. In this case, depending on the angle of the fixture body of the lighting fixture, the root of the lead wire may be closer to the base end portion side than the tip end portion of the mounting arm, so there is a risk that the lead wire cannot be installed unless it is bent to a predetermined bending radius or less such as the manufacturer's specifications.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The problem to be solved by the present invention is Mounting attachment to suppress the bending load of the wiring of the lighting fixture inserted into the mounting arm ru teru and provide a lighting device.

Means for Solving the Problems

[0005] In the embodiment Lighting deviceThis refers to a lighting fixture having a fixture body from which wiring is routed and a retaining arm that holds the fixture body. and, A mounting arm in which one end is fixed to the object being illuminated by the lighting fixture, and the other end is positioned away from the object being illuminated, is formed in a cylindrical shape, and wiring is inserted from the other end to the one end. And the lighting fixtures Mounting attachment that attaches to the mounting arm and; equipped The mounting attachment is, A first attachment member and a second attachment member, The first fixing part and the second fixing part, possess The first fixing part is, The first attachment member and the second attachment member are fastened and secured together so as to sandwich the mounting arm. The second fixing part is, The retaining arm is fastened and fixed to the second attachment member in a direction intersecting the direction in which the mounting arm is clamped. The holding arm extends from the other end of the mounting arm toward the side opposite to the object to be illuminated. ru. [Effects of the Invention]

[0006] Embodiment Lighting device According to Mounting attachment This is expected to reduce the bending load on the wiring of the lighting fixture that is inserted into the mounting arm. [Brief explanation of the drawing]

[0007] [Figure 1] This is a side view of a lighting device showing the first embodiment. [Figure 2] (a) is a top view of the mounting attachment for the same lighting device, (b) is a front view of the mounting attachment, and (c) is a bottom view of the mounting attachment. [Figure 3] This is a perspective view showing the mounting arm of the same lighting device. [Figure 4] This is a perspective view showing the lighting fixtures of the same lighting device. [Figure 5] (a) is a top view of the mounting attachment for the lighting device showing a second embodiment, (b) is a front view of the mounting attachment, and (c) is a bottom view of the mounting attachment. [Modes for carrying out the invention]

[0008] The first embodiment will be described below with reference to the drawings.

[0009] Figure 1 shows the lighting device 10. The lighting device 10 illuminates the object to be lit, such as a sign, from above or from the side. The lighting device 10 is constructed by attaching a lighting fixture 13, such as a floodlight, to a mounting arm 12 via a mounting attachment 14, and is attached to the installation part 15. The installation part 15 may be the object to be lit itself, or it may be a wall or the like on which the object to be lit is installed.

[0010] The mounting arm 12 shown in Figures 1 and 3 is made of metal, for example, and is provided in an elongated shape. The mounting arm 12 is formed in a hollow cylindrical or pipe shape from one end to the other. In this embodiment, the mounting arm 12 is formed in an L-shape. That is, the mounting arm 12 integrally has a one-end arm portion 17 that forms one end and a other-end arm portion 18 that is curved and connected to the one-end arm portion 17 and forms the other end. The one-end arm portion 17 of the mounting arm 12 is fixed to the installation portion 15 via a mounting bracket 20, while the other-end arm portion 18 is located away from the installation portion 15. A lighting fixture 13 is attached to the other-end arm portion 18 of the mounting arm 12, so that the lighting fixture 13 illuminates the object to be illuminated from a position away from the installation portion 15.

[0011] The arm portion 17 at one end is formed in a straight tubular shape and is fixed to the installation surface 15a of the installation portion 15 via the mounting bracket 20, and is the portion that follows the installation surface 15a. In this embodiment, the installation surface 15a is a vertical surface or a substantially vertical surface.

[0012] The other end side arm portion 18 is a straight tubular shape longer than the one end side arm portion 17, and is arranged to incline upward as it moves away from the installation portion 15 from the one end side arm portion 17 side. The other end side arm portion 18 has an other end side arm portion main body portion 18a continuous with the one end side arm portion 17, and an arm tip portion 18b attached to the other end side arm portion main body portion 18a via a joint 22. An attachment attachment 14 is fixed to the arm tip portion 18b. The joint 22 is formed in an annular shape, and is fixed at a plurality of locations in the circumferential direction to the other end side arm portion main body portion 18a and the arm tip portion 18b by a joint fixing member 23 such as a screw to prevent rotation and detachment. Further, on the other end side arm portion 18, a wire fixing portion 24 for firmly fixing the attachment arm 12 by a wire which is a fixing means to the installation portion 15 is formed according to the size and weight of the lighting fixture 13. In the present embodiment, the wire fixing portion 24 is formed integrally with the joint 22.

[0013] The mounting bracket 20 has a pair of fixing portions 27 projecting on both sides of a holding portion 26 curved in an arc shape for holding the one end side arm portion 17 of the attachment arm 12 and overlapping the installation surface 15a of the installation portion 15.

[0014] An angle fixing screw 30 which is an angle fixing member for fixing the angle of the attachment arm 12 is arranged on the holding portion 26. The angle fixing screw 30 is inserted radially with respect to the holding portion 26 from a hole portion formed in the holding portion 26 and screwed into a hole portion formed in the one end side arm portion 17 of the attachment arm 12, thereby being configured to fix the angle of the attachment arm 12.

[0015] Also, in the present embodiment, an inward holding portion that is arcuately curved and sandwiches one end side arm portion 17 of the attachment arm 12 together with the holding portion 26 is disposed inside the holding portion 26. Then, the tightening portion 32 protruding from the side portion of the holding portion 26 and the inward holding portion are tightened together by a tightening screw 33 that is a tightening member, so that the holding portion 26 and the inward holding portion sandwich and hold the one end side arm portion 17 of the attachment arm 12. Not limited to this, any configuration that holds and fixes the one end side arm portion 17 of the attachment arm 12 by tightening the tightening screw 33 may be used for the holding portion 26.

[0016] Each fixing portion 27 is formed with a hole portion 35 into which an attachment member such as a screw for fixing the attachment fitting 20 to the installation surface 15a is inserted. By fixing each fixing portion 27 to the installation surface 15a, the holding portion 26 and the inward holding portion are installed so as to have an axial direction in the vertical direction along the installation surface 15a. In the example shown in FIG. 1, the attachment fitting 20 is shown attached to the installation portion 15 on the side of the installation surface 15a where the illumination target is installed. However, not limited to this, it may be attached to the rear surface on the opposite side of the installation surface 15a where the illumination target is installed so that the attachment arm 12 extends toward the installation surface 15a side, or it may be attached to a surface in a direction intersecting or orthogonal to the installation surface 15a. Also, in FIG. 1, an example is shown in which the attachment arm 12 is fixed at an angle perpendicular or substantially perpendicular to the installation surface 15a, that is, the illumination target. However, not limited to this, it may be fixed at an angle inclined to the left or right with respect to the installation surface 15a.

[0017] The lighting fixture 13 shown in FIGS. 1 and 4 is configured such that the fixture main body 40 is rotatably held by the holding arm 41.

[0018] The fixture body 40 integrally houses a light source unit having a light source such as an LED, and a light control unit having a reflector, and is configured to emit light from the front irradiation section 43, which is the emission surface. A heat dissipation fin 44, which is a heat dissipation section, is formed on the rear, or back, side of the fixture body 40. In this embodiment, the fixture body 40 has a rectangular outer shape. That is, the outer shape of the fixture body 40 has a pair of side sections 46 facing each other on the left and right, and a pair of end sections 47 facing each other on the top and bottom. The side sections 46 are held by the holding arm 41.

[0019] The fixture body 40 has wiring (lead wires) 50 for supplying power to the light source unit. In this embodiment, the wiring 50 is led out from one end face portion 47 of the fixture body 40. The wiring 50 is composed of three wires: a positive wire 50a, a negative wire 50b, and a ground wire 50c, which are bundled together and covered by an outer sheath 50d. The wiring 50 is inserted through a cylindrical gasket 51 fitted to the arm tip portion 18b, which is the tip of the other end arm portion 18 of the mounting arm 12, and is inserted from the tip of the other end arm portion 18 of the mounting arm 12, and is led out from the end of the one end arm portion 17 to the outside of the mounting bracket 20, and connected to an external power source. The gasket 51 is a sealing member that closes the gap between the opening at the tip of the mounting arm 12 and the wiring 50, keeping the inside of the mounting arm 12 liquid-tight.

[0020] The retaining arm 41 is made of metal, such as sheet metal, and is arranged in a U-shape. In other words, the retaining arm 41 integrally includes a pair of fixture-side connecting parts 53 that are connected to the side portion 46 of the fixture body 40, and a mounting arm-side connecting part 54 that is connected between these fixture-side connecting parts 53.

[0021] The device-side connection part 53 is rotatably connected to a bearing part 56 whose tip protrudes from the side part 46 of the device body 40. The device-side connection part 53 and the bearing part 56 are fastened together by an adjustment screw 58, which is an adjustment means. By tightening the adjustment screw 58, the rotation angle of the device body 40 relative to the holding arm 41, that is, the angle of the optical axis (turning angle), can be fixed.

[0022] The mounting arm side connection portion 54 is the part that is fixed to the mounting arm 12 via the mounting attachment 14. The mounting arm side connection portion 54 is formed in a flat plate shape. The mounting arm side connection portion 54 extends in the left-right direction of the fixture body 40 and faces one end face portion 47. In this embodiment, the wiring 50 is led out from the end face portion 47 facing the mounting arm side connection portion 54.

[0023] Mounting holes 60 are formed in the mounting arm side connection portion 54. In this embodiment, the mounting holes 60 consist of a round first mounting hole 60a and elongated second mounting holes 60b located separately on both sides of the first mounting hole 60a. The second mounting holes 60b are formed along the longitudinal direction of the mounting arm side connection portion 54. In the illustrated example, the mounting attachment 14 and the lighting fixture 13 are mounted using the second mounting holes 60b.

[0024] The mounting attachment 14 is a bracket made of metal or the like. As shown in Figures 1 and 2(a) to 2(c), the mounting attachment 14 includes a first fixing part 63 that is fixed to the mounting arm 12 and a second fixing part 64 to which the holding arm 41 of the lighting fixture 13 is fixed.

[0025] In this embodiment, the mounting attachment 14 is divided into a plurality of attachment members that are separate from each other. In the illustrated example, the mounting attachment 14 is divided into a first attachment member 66 and a second attachment member 67 that are separate from each other.

[0026] The first attachment member 66 is formed from sheet metal or the like. The first attachment member 66 is attached from above to the other end arm portion 18 of the mounting arm 12. The first attachment member 66 has a first arm holding portion 70 that curves in an arc shape along the outer shape of the other end arm portion 18 (arm tip portion 18b) of the mounting arm 12, and flat plate-shaped first mounting portions 71 that protrude from both sides of the first arm holding portion 70. The first arm holding portion 70 is arranged to have a width in the axial direction of the other end arm portion 18, and the first mounting portions 71 are arranged to extend in a direction that intersects or is perpendicular to the longitudinal direction or axial direction of the mounting arm 12.

[0027] The second attachment member 67 is formed from sheet metal or the like. The second attachment member 67 is attached from below to the other end arm portion 18 of the mounting arm 12. The second attachment member 67 has a second arm holding portion 73 that curves in an arc shape along the outer shape of the other end arm portion 18 (arm tip portion 18b) of the mounting arm 12, second mounting portions 74 that protrude on both sides of the second arm holding portion 73, and a device mounting portion 75 that is connected to the second mounting portion 74. The second arm holding portion 73 is convex on the opposite side from the first arm holding portion 70 and the second mounting portion 74 is positioned to overlap with the first mounting portion 71. In other words, the second arm holding portion 73 is arranged to have a width in the axial direction of the other end arm portion 18, and the second mounting portion 74 is arranged to extend in a direction that intersects or is perpendicular to the longitudinal direction or axial direction of the mounting arm 12.

[0028] A connecting member, a bolt 77, is inserted through the first mounting portion 71 of the first attachment member 66 and the second mounting portion 74 of the second attachment member 67, and a connecting receiving member, a nut 78, is placed on either the first mounting portion 71 or the second mounting portion 74 to which the bolt 77 is screwed. In this embodiment, the bolt 77 is inserted from the first mounting portion 71 to the second mounting portion 74, and the nut 78 is placed on the second mounting portion 74. The first fixing portion 63 is formed by the first arm holding portion 70 and the first mounting portion 71 of the first attachment member 66, the second arm holding portion 73 and the second mounting portion 74 of the second attachment member 67, the bolt 77, and the nut 78.

[0029] Furthermore, the fixture mounting portion 75 is formed in a flat plate shape that extends in a direction intersecting or perpendicular to the second mounting portion 74. That is, the fixture mounting portion 75 is formed by bending upward from the second mounting portion 74. The fixture mounting portion 75 extends from the second mounting portion 74 toward the opposite side from the first attachment member 66. Therefore, when the mounting attachment 14 is attached to the mounting arm 12, the fixture mounting portion 75 extends downward relative to the mounting arm 12 and forms a surface along the direction perpendicular to the axis of the mounting arm 12.

[0030] The fixture mounting portion 75 is superimposed on the mounting arm side connection portion 54 of the holding arm 41 of the lighting fixture 13. A mounting bolt 80, which is a fixture mounting member, is inserted through the mounting arm side connection portion 54 and the fixture mounting portion 75, and a nut 81, which is a mounting receiving member to which the mounting bolt 80 is screwed, is placed on the mounting arm side connection portion 54 or the fixture mounting portion 75. Preferably, the mounting bolt 80 is inserted through a spring washer 82, and when the mounting bolt 80 is tightened, the spring washer 82 is pressed against the mounting arm side connection portion 54 or the fixture mounting portion 75 to prevent the mounting bolt 80 from rotating. In this embodiment, the mounting bolt 80 is inserted from the mounting arm side connection portion 54 to the second mounting portion 74, the spring washer 82 is pressed against the mounting arm side connection portion 54, and a nut 81 is placed on the fixture mounting portion 75. The second fixing part 64 is formed by the fixture mounting portion 75, mounting bolt 80, and nut 81 of the second attachment member 67.

[0031] When installing the lighting device 10, first the fixing portion 27 of the mounting bracket 20 is placed on the installation surface 15a of the installation portion 15, and the mounting member inserted into the hole 35 is fixed to the installation portion 15, thereby fixing the mounting bracket 20 to the installation surface 15a.

[0032] Next, the arm portion 17 at one end of the mounting arm 12 is inserted from above between the holding portion 26 and the inner holding portion of the mounting bracket 20, rotated in the circumferential direction to determine the angle, and then the angle fixing screw 30 is tightened to determine the angle of the mounting arm 12 with respect to the installation surface 15a.

[0033] In this state, the tightening screw 33 is tightened to firmly secure the one-end arm portion 17 to the mounting bracket 20.

[0034] Furthermore, the lighting fixture 13 is attached to the tip 18b of the mounting arm 12 via a separate mounting attachment 14.

[0035] At this time, the mounting attachment 14 is first loosened by loosening the bolt 77 to separate the first attachment member 66 and the second attachment member 67 of the mounting attachment 14, and with the arm tip portion 18b inserted between the first arm holding portion 70 and the second arm holding portion 73, the bolt 77 is tightened so that the arm tip portion 18b of the mounting arm 12 is sandwiched between the first arm holding portion 70 and the second arm holding portion 73. As a result, the first fixing portion 63 of the mounting attachment 14 is attached to the arm tip portion 18b. In this state, the mounting attachment 14 is positioned so that the device mounting portion 75 extends downward relative to the arm tip portion 18b.

[0036] Next, the mounting arm side connection portion 54 of the holding arm 41 of the lighting fixture 13 is placed on top of the fixture mounting portion 75 of the mounting attachment 14. At this time, the mounting arm side connection portion 54 of the holding arm 41 is placed on top of the fixture mounting portion 75 from the tip side of the other end arm portion 18, that is, from the right side as shown in Figure 1. Then, the mounting bolt 80, which has been inserted from the mounting arm side connection portion 54 to the second mounting portion 74, is tightened while sandwiching a spring washer 82 between it and the mounting arm side connection portion 54, thereby integrally fixing the mounting arm side connection portion 54 to the fixture mounting portion 75, which forms part of the second fixing portion 64 of the mounting attachment 14.

[0037] Then, the lighting fixture 13 and the arm tip 18b, which are integrated via the mounting attachment 14, are connected via the joint 22 to the tip of the other end of the arm body 18a of the mounting arm 12, which is fixed to the mounting surface 15a. That is, after inserting the arm tip 18b into the joint 22 with the joint fixing member 23 loosened, the arm tip 18b is integrally attached to the other end of the arm body 18a by tightening the joint fixing member 23, and the lighting fixture 13 is fixed to the mounting arm 12 via the mounting attachment 14. The pivot angle of the fixture body 40 of the lighting fixture 13 is adjusted via the adjustment screw 58 at an appropriate time, such as before attaching the lighting fixture 13 to the arm tip 18b of the mounting arm 12, or after attaching the lighting fixture 13 to the mounting arm 12.

[0038] In this state, the lighting fixture 13 is held with the fixture-side connection portion 53 of the holding arm 41 extending away from the object to be illuminated (installation portion 15) relative to the fixture mounting portion 75, and the fixture-side connection portion 53 of the holding arm 41 is positioned parallel or approximately parallel to the other end arm portion 18 of the mounting arm 12. In other words, the holding arm 41 of the lighting fixture 13 is attached to the second fixing portion 64 of the mounting attachment 14 facing the object to be illuminated. Therefore, the fixture body 40, which is rotatably supported at the tip of the fixture-side connection part 53, is such that, at any angle of rotation with the illumination part 43 facing the object to be illuminated, the entire fixture body is on the side further away from the object to be illuminated (installation part 15) relative to the tip of the other end arm part 18 of the mounting arm 12 (arm tip part 18b), and one end plate part 47 from which the wiring 50 of the lighting fixture 13 is led out is located on the mounting arm 12 side and is close to the tip of the other end arm part 18, which is the other end of the mounting arm 12.

[0039] Then, the wiring 50 of the lighting fixture 13 is inserted into the gasket 51 attached to the tip 18b of the arm above the holding arm 41, passed through from the other end arm portion 18 of the mounting arm 12 to the one end arm portion 17, and led out from the lower end of the one end arm portion 17 to connect to the external power supply.

[0040] In this first embodiment, the mounting attachment 14 for attaching the lighting fixture 13 to the mounting arm 12 includes a first fixing part 63 fixed to the mounting arm 12 and a second fixing part 64 to which the holding arm 41 is fixed so as to extend from the other end of the mounting arm 12 toward the side opposite to the object to be illuminated. As a result, the position from which the wiring 50 is led out from the fixture body 40 is located toward the side opposite to the object to be illuminated, that is, at the end of the mounting arm 12, rather than the other end of the mounting arm 12 through which the wiring 50 is inserted. Therefore, even if the wiring 50 is guided to the other end of the mounting arm 12 via the shortest path, no excessive bending occurs in the wiring 50. Consequently, the bending load on the wiring 50 of the lighting fixture 13 inserted into the mounting arm 12 can be suppressed.

[0041] In other words, when the lighting fixture 13 is mounted on the mounting arm 12 such that the holding arm 41 is positioned closer to the object to be illuminated than the other end of the mounting arm 12, in order to insert the wiring 50 led out from the lighting fixture 13 into the mounting arm 12 via the shortest path, the wiring 50 must be routed from its direction of origin to the opposite side, that is, away from the object to be illuminated (right side in Figure 1), and then bent again toward the object to be illuminated (left side in Figure 1) before being inserted into the other end of the mounting arm 12. This results in a sharp S-shaped bend in the wiring 50, so the wiring method must be devised accordingly. In contrast, in this embodiment, the exit point of the wiring 50 from the fixture body 40 is further ahead of the other end of the mounting arm 12. Therefore, the wiring 50 can be guided along its exit direction toward the illuminated object, that is, toward the left side in Figure 1, directly to the other end of the mounting arm 12. This eliminates the need to sharply bend the wiring 50, only slightly bypassing the fixture body 40 if necessary. This suppresses the bending load on the wiring 50 of the lighting fixture 13 inserted into the mounting arm 12 along the shortest path, and also improves workability.

[0042] In particular, since the retaining arm 41 is attached to the second fixing part 64 facing the object to be illuminated, the entire fixture body 40 of the lighting fixture 13 is located further from the object to be illuminated than the other end of the mounting arm 12. Therefore, by guiding the wiring 50 leading out from the fixture body 40 toward the object to be illuminated, it can be inserted into the other end of the mounting arm 12 without significant bending.

[0043] Since the wiring 50 is routed out from one end face 47 of the fixture body 40, which is the side facing the mounting arm 12, if the fixture body 40 is facing the object to be illuminated, the wiring 50 can be guided relatively straight to the other end of the mounting arm 12 without significant bending.

[0044] Therefore, the wiring 50 does not need to be bent sharply to a bending radius less than or equal to a predetermined bending radius specified by the manufacturer, and malfunctions of the wiring 50 caused by increased bending load resulting from a smaller bending radius can be suppressed.

[0045] The form of the mounting attachment 14 is not limited to the first embodiment, and its shape may be changed according to the size of the fixture body 40 of the lighting fixture 13. For example, if the fixture body 40 is smaller than that of the first embodiment, the fixture mounting portion 75 of the second fixing portion 64 may be made smaller in protrusion from the second mounting portion 74, as shown in the second embodiment in Figures 5(a) to 5(c). Alternatively, multiple mounting bolts 80 and nuts 81 may be arranged on the second fixing portion 64.

[0046] While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These novel embodiments can be carried out in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims of the invention and its equivalents. [Explanation of Symbols]

[0047] 10 Lighting devices 12 Mounting Arms 13 Lighting fixtures 14. Mounting Attachments 40 Main body of the device 41 Holding arm 46 Side part 47 End face part 50 Wiring 63 First fixed part 64 Second fixed part 66 First attachment member 67 Second attachment member

Claims

1. A lighting fixture having a fixture body from which wiring is routed and a retaining arm that holds the fixture body; A mounting arm having one end fixed to the object to be illuminated by the lighting fixture and the other end positioned away from the object to be illuminated, formed in a cylindrical shape, through which the wiring is inserted from the other end to the one end; The lighting fixture is equipped with a mounting attachment for attaching it to the mounting arm; The aforementioned mounting attachment is, First attachment member and The second attachment member and The first attachment member and the second attachment member are fastened and secured together by a first fixing part that sandwiches the mounting arm, It has a second fixing part that fastens and fixes the retaining arm to the second attachment member in a direction intersecting the direction in which the mounting arm is clamped, The holding arm, fixed by the second fixing part, extends from the other end of the mounting arm toward the side opposite to the object to be illuminated. A lighting device characterized by the following features.

2. The holding arm is attached to the second fixing part, facing the side to be illuminated. The lighting device according to claim 1, characterized by the features described above.

3. The aforementioned wiring is routed out from the side of the fixture body on the mounting arm side. The lighting device according to claim 1 or 2, characterized in that it is a lighting device according to claim 1 or 2.

4. The holding arm is attached across both sides of the main body of the device, The aforementioned wiring is routed out from the end face on the mounting arm side in a direction that intersects with the side surface of the fixture body. The lighting device according to claim 1 or 2, characterized in that it is a lighting device according to claim 1 or 2.

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