JP6365978B2 - Lighting device and mounting structure thereof - Google Patents

Description

  The present invention generally relates to a lighting device and a mounting structure thereof, and more particularly to a lighting device mounted in a mounting opening on a ceiling of a room and the mounting structure thereof.

  Patent Document 1 discloses a conventional lighting device. The illumination device described in Patent Literature 1 includes a linear light source device and a light guide plate. The linear light source device has a length in one direction, and emits light in a direction perpendicular to the longitudinal direction. The light guide plate is disposed adjacent to the linear light source device in the light emitting direction, takes light emitted from the linear light source device through its end surface, and emits light in a planar shape by emitting it from the lower surface.

JP 2010-146931 A

  By the way, since this kind of light source device is elongate, handling at the time of attachment or removal may be difficult. In particular, when it is necessary to perform an operation from one end side in the longitudinal direction of the light source device, there is a problem that the operator cannot easily reach the opposite end and the fixing operation is difficult.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an illuminating device and a mounting structure for the illuminating device having a long light source unit, which have good workability for attachment or detachment.

  The illuminating device of the present invention is an illuminating device including a mounting frame provided at the opening peripheral edge of the mounting opening of the ceiling, and a lighting fixture that is attached to the mounting frame and illuminates a room, and the lighting fixture includes the mounting fixture. A light source part that has a longitudinal direction along one side of the frame and emits light in a direction perpendicular to the longitudinal direction, and is attached so as to be adjacent to the light source part in the light emitting direction and cover the attachment opening. A light guide plate that takes in light emitted from the light source unit from the end surface and emits it from the lower surface, thereby illuminating the interior of the room, and the light source unit has a first end portion in the longitudinal direction at the upper surface of the mounting frame. A main body that is slidable on the mounting frame in a state where the second end opposite to the first end is separated from the upper surface of the mounting frame, and the first end of the main body And is allowed to move in the sliding direction. And a first restricting portion that restricts the position in the vertical direction, and a position that is separated from the first restricting portion to the second end side in the main body, and allows the movement in the vertical direction and the slide. A second restricting portion that restricts the position in the direction, the first end of the main body being supported on the upper surface of the mounting frame, and the second end being separated from the mounting frame. In a state where the first restricting portion is slid and the position of the first restricting portion is restricted to the attachment frame, the second restricting portion side is placed on the attachment frame, whereby the light source portion is attached to the attachment frame. And

  The lighting device mounting structure of the present invention is a lighting device mounting structure in which the lighting device is mounted on a ceiling having an inspection port, wherein the inspection port is arranged to be aligned with the mounting opening, and the light source unit Is attached to one side of the mounting frame on the side adjacent to the inspection port, and the first restricting portion of the light source unit is provided at an end portion on the side away from the inspection port.

  According to the illumination device of the present invention, it is possible to improve the workability of attachment or removal even in an illumination device having a long light source unit.

  Moreover, according to the mounting structure of the illuminating device of the present invention, even in the illuminating device having a long light source part, the workability of mounting or removing can be improved.

It is a disassembled perspective view of the attachment structure of the illuminating device of this embodiment. It is a perspective view of the attachment frame of this embodiment. It is principal part sectional drawing of the attachment frame of this embodiment. It is a principal part expansion perspective view of the attachment frame of this embodiment. It is a perspective view of the illuminating device of this embodiment. It is sectional drawing of the illuminating device of this embodiment. It is a principal part expanded sectional view of the illuminating device of this embodiment. It is a perspective view of the main-body part of this embodiment. It is the figure seen in the longitudinal direction of the main-body part of this embodiment. It is the figure seen in the direction orthogonal to the longitudinal direction of the main-body part of this embodiment. It is a perspective view explaining the attachment method of the main-body part of the illuminating device of this embodiment, and shows the operation | movement which slides a main-body part. It is a principal part expansion perspective view explaining the attachment method of the main-body part of the illuminating device of this embodiment. It is a perspective view explaining the attachment method of the main-body part of an illuminating device, and the operation | movement which mounts the 2nd end part of a main-body part on an attachment frame is shown.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  The illuminating device 2 of this embodiment is attached to the ceiling of the room 1, as shown in FIG. The lighting device 2 emits light in a planar shape and illuminates the room 1. The lighting device 2 occupies approximately half of the ceiling area of the room 1. That is, the ceiling of the present embodiment is configured so that approximately half emits light.

  The room 1 of this embodiment is a bathroom. The room 1 is composed of a unit room having a ceiling panel 11, a wall panel 14, and a floor panel (not shown). The ceiling panel 11 is placed on the upper end of the wall panel 14. The ceiling panel 11 is provided with an inspection port 12 and an attachment port 13 for attaching a bathroom dryer. The inspection port 12 is an opening for inspecting the back of the ceiling (above the ceiling panel 11) from the room 1. A user, an operator, or the like can inspect and maintain the lighting device 2 and the bathroom dryer through the inspection port 12.

  The room 1 may not be a bathroom, and may be, for example, an elevator cabin or a living room.

  Room 1 has a ceiling. In the present embodiment, the ceiling refers to an upper surface that forms a space inside the room 1, and specifically includes a lower surface of the ceiling panel 11 and a lower surface of the lighting device 2. A mounting opening 15 is provided on the ceiling, and the lighting device 2 is mounted on the mounting opening 15 so that illumination can be performed through the mounting opening 15.

  The attachment opening 15 is an opening provided in the ceiling for attaching the lighting device 2. The attachment opening 15 has a length and a width (the width is shorter than the length), and is thus formed in a rectangular shape. The inspection port 12 is arranged so as to be aligned in the width direction of the mounting opening 15 at a position biased to one end side in the length direction of the mounting opening 15.

  In addition, although the attachment opening 15 of this embodiment is comprised by the edge of the ceiling panel 11 and the edge of the wall panel 14, you may be comprised by the through-hole provided in the ceiling panel 11. FIG. Further, the attachment opening 15 may not be rectangular.

  The lighting device 2 is attached to the ceiling panel 11 and the wall panel 14 and illuminates the room 1 through the attachment opening 15. The lighting device 2 includes a mounting frame 3 and a lighting fixture 5.

  The attachment frame 3 fixes the lighting fixture 5 to the ceiling. The attachment frame 3 of this embodiment is attached to the periphery of the attachment opening 15 so as to surround the attachment opening 15. The mounting frame 3 is formed in a rectangular frame shape in plan view as shown in FIG. The mounting frame 3 also has a function of reinforcing the ceiling panel 11 and the wall panel 14 by connecting the ceiling panel 11 and the wall panel 14 to each other. The attachment frame 3 includes a frame main body 31, an attachment member 36, and a pressing member 34.

  The frame body 31 constitutes the main body of the mounting frame 3. The frame body 31 has a pair of long frames 32 and a pair of short frames 33, and has a substantially rectangular frame shape in plan view. The frame main body 31 is placed on the upper ends of the ceiling panel 11 and the wall panel 14 and is fixed via a fixing tool. Specifically, the long frame 32 is disposed along the long side of the mounting opening 15, and the short frame 33 is disposed along the short side of the mounting opening 15. In this state, the frame is fixed by the fixing tool. The main body 31 is attached to the opening periphery of the attachment opening 15.

  The pressing member 34 is a member that presses a light guide plate 6 described later from above. The pressing member 34 is attached to the frame body 31 via a fixing tool.

  The attachment member 36 is attached to the long frame 32 located on the inspection port 12 side among the pair of long frames 32 of the frame main body 31. The attachment member 36 extends in a direction parallel to the length direction of the long frame 32. A light source unit 7 to be described later is attached to the attachment member 36. As shown in FIG. 3, the attachment member 36 includes a fixed portion 37, a vertical surface portion 38, and a slide support portion 39.

  The fixing portion 37 is connected to the frame main body 31 in a state of being disposed below the frame main body 31. The fixing portion 37 has a width in a direction parallel to the length direction of the short frame 33 of the frame body 31, and has a length in a direction parallel to the length direction of the long frame 32.

  The vertical surface portion 38 extends upward from an end portion on the outer side in the width direction of the fixed portion 37 (a direction toward the side opposite to the opposed long frame 32). The vertical surface portion 38 is provided with a plurality of connecting pins 40 that protrude outward. The connecting pin 40 is provided, for example, by screwing a screw 44 inserted into a cylindrical spacer 43 into the vertical surface portion 38. As shown in FIG. 4, the connecting pin 40 is provided with a first pin 41 at one end in the length direction of the mounting member 36, and from the first pin 41 along the length direction of the mounting member 36. A second pin 42 is provided at a position separated by a certain dimension.

  In the lighting device 2 of the present embodiment, a plurality of sets (three sets) of the first pin 41 and the second pin 42 are provided side by side in the longitudinal direction of the mounting member 36.

  As shown in FIG. 3, the slide support portion 39 protrudes from the upper end of the vertical surface portion 38 toward the inside (the direction toward the opposing long frame 32 in the width direction of the fixed portion 37). The slide support portion 39 has a width in a direction parallel to the length direction of the short frame 33 and a length in a direction parallel to the length direction of the long frame 32. The upper surface of the slide support portion 39 is a horizontal plane and constitutes a part of the upper surface of the mounting frame 3.

  As shown in FIG. 5, the lighting fixture 5 is attached to the attachment frame 3. The lighting fixture 5 includes a light guide plate 6 held by the frame body 31 and a light source unit 7 held by the attachment member 36. In addition, the code | symbol 93 in a figure is the upper cover 93 covered on the upper surface of the light-guide plate 6. FIG.

  The light guide plate 6 takes in the light emitted from the light source unit 7 from the end face and emits it from the lower face to illuminate the room. The light guide plate 6 is made of a transparent plate such as acrylic or glass. The light guide plate 6 has a width in a direction parallel to the length direction of the short frame 33 and has a length in a direction parallel to the length direction of the long frame 32, thereby forming a rectangular shape in plan view. Yes. The light guide plate 6 has a thickness in the vertical direction.

  FIG. 6 shows a cross-sectional view of the lighting device 2 cut in parallel to the longitudinal direction of the short frame 33. FIG. 7 shows an enlarged view of the light source unit 7 in FIG. As shown in FIG. 7, the light guide plate 6 includes an incident surface 61, a diffusion portion 62, and an output surface 63. The incident surface 61 is an end surface of the light guide plate 6 that takes in the light emitted from the light source unit 7 into the light guide plate 6. The incident surface 61 is configured by an end surface on the side where the inspection port 12 is disposed, of the pair of end surfaces in the width direction of the light guide plate 6. The diffusing unit 62 diffuses the light incident on the inside of the light guide plate 6 from the incident surface 61 and reflects the light toward the output surface 63. The diffusion part 62 is formed on the upper surface of the light guide plate 6. The diffusion unit 62 is formed, for example, by printing a dot pattern on the upper surface of the light guide plate 6. The emission surface 63 is a surface for emitting the light taken into the light guide plate 6 to the outside. The emission surface 63 is configured by the lower surface of the light guide plate 6.

  As shown in FIG. 6, the light guide plate 6 is pressed by the pressing member 34 in a state of being disposed on the frame body 31, and thereby fixed to the mounting frame 3. When the light guide plate 6 is attached to the attachment frame 3, the light guide plate 6 covers the attachment opening 15 provided in the ceiling from above.

  The light source part 7 is arrange | positioned along the length direction of the long frame 32 of the attachment frame 3, as shown in FIG. The light source unit 7 includes a plurality of main body units 71 (three in the present embodiment). The plurality of main body portions 71 are arranged linearly along the long frame 32 of the mounting frame 3. Hereinafter, since the plurality of main body portions 71 all have the same structure, the main body portion 71 attached to the position farthest from the inspection port 12 will be mainly described.

  As shown in FIG. 8, the main body 71 extends in one direction. The longitudinal direction of the main body 71 is parallel to the length direction of the long frame 32 of the attachment frame 3 (the end of the main body 71 that is further away from the inspection port 12 is defined as a first end 88) The opposite end is referred to as a second end 89). The main body 71 is configured to emit light in a horizontal direction perpendicular to the longitudinal direction.

  The main body 71 constitutes the main body of the light source unit 7. As shown in FIG. 9, the main body 71 includes a base 72, a cover 80, and a light emitting unit 77. The base portion 72 includes a receiving piece 73 that supports the light emitting portion 77, a slide piece 74 that protrudes outward from the upper end of the receiving piece 73, a vertical piece 75 that protrudes from the tip of the slide piece 74, and the receiving piece 73. And a connecting piece 76 projecting inward from the upper end.

  The receiving piece 73 supports the light emitting unit 77. The receiving piece 73 has a width in the vertical direction and a length in a direction parallel to the length direction of the long frame 32. The slide piece 74 is slid and moved in a direction parallel to the length direction of the long frame 32 (hereinafter, this direction may be referred to as a slide direction) while being placed on the slide support portion 39 of the mounting frame 3. It is possible (see FIG. 11). The slide piece 74 protrudes from the upper end of the receiving piece 73 toward the outside in the horizontal direction. The vertical piece 75 extends downward from the tip of the slide piece 74 and can guide the slide movement of the slide piece 74 on the slide support portion 39. The connecting piece 76 protrudes inward from the upper end of the receiving piece 73, and the upper surface thereof is flush with the upper surface of the slide piece 74. The connecting piece 76 supports the upper end of the cover 80.

  The light emitting unit 77 includes a substrate 78 and a plurality of LEDs 79 (Light Emitting Diodes) mounted on the substrate 78. The plurality of LEDs 79 are arranged at regular intervals along the length direction of the main body 71. The light emitting unit 77 is attached to the base unit 72 and covered with a cover unit 80.

  The cover part 80 covers the light emitting part 77 from the side and protects the light emitting part 77. The cover 80 is attached with the lower end connected to the receiving piece 73 and the upper end connected to the connecting piece 76. The cover portion 80 includes a pair of protrusions 81 provided on both upper and lower sides of the LED 79, and a transmission portion 82 provided between the protrusions 81.

  The protrusion 81 protrudes from the cover portion 80 toward the substrate 78. The protruding tip of the ridge 81 is in contact with or close to the substrate 78. The transmission part 82 is made of a transparent resin. Note that, in the cover portion 80, portions other than the transmission portion 82 are made of a light-reflective resin material (for example, a white resin material). That is, the cover 80 is a two-color molded product.

  In addition, the cover portion 80 is provided with a pressing protrusion 83 that protrudes toward the light guide plate 6. The pressing projection 83 is configured to press the light guide plate 6 from above when the light source unit 7 is attached to the mounting frame 3. The pressing protrusion 83 is also made of a white resin material.

  When the light emitting part 77 emits light, most of the light passes through the transmission part 82 and directly enters the light guide plate 6, and a part of the light is a boundary surface between the transmission part 82 and other parts and the protrusion 81. And is incident on the light guide plate 6. Therefore, according to the illumination device 2 of the present embodiment, the light loss is suppressed by the cover 80.

  As shown in FIG. 8, the main body 71 is provided with a first restricting portion 84 and a second restricting portion 86.

  As shown in FIG. 10, the first restricting portion 84 is provided at the first end portion 88 of the main body portion 71. The first restricting portion 84 is configured by a notch that opens in the length direction of the main body portion 71 (that is, the sliding direction) (this notch is referred to as a first notch 85). The first notch 85 is provided with an introduction portion 851 on the upper edge. As a result, the first restricting portion 84 allows movement in the sliding direction and restricts the position in the vertical direction.

  The second restricting portion 86 is provided in the main body portion 71 at a position away from the first restricting portion 84 toward the second end portion 89, and is provided at the second end portion 89 in the present embodiment. The second restricting portion 86 is configured by a notch opened downward (this notch is referred to as a second notch 87). Thereby, the 2nd control part 86 is comprised so that a movement may be permitted to an up-down direction, and a position may be controlled in a slide direction. The second restricting portion 86 may not be provided at the second end portion 89 and may be provided apart from the first restricting portion 84.

  In addition, the light source part 7 of this embodiment is provided with the 1st control part 84 and the 2nd control part 86 in any edge part so that it may become left-right symmetric.

  The light source unit 7 having such a configuration is attached as follows.

  As shown in FIG. 11, the operator supports the first end portion 88 of the main body portion 71 on the upper surface of the slide support portion 39 of the mounting frame 3 and separates the second end portion 89 from the mounting frame 3 upward. Make a posture. In this state, the operator slides the main body portion 71 along the slide support portion 39.

  Then, as shown in FIG. 12, the first restricting portion 84 reaches the first pin 41 and the position of the main body portion 71 is restricted in the vertical direction. When the sliding movement is further performed, the first pin 41 hits the back of the first notch 85 and is positioned in the sliding direction. In this state, as shown in FIG. 13, the operator rotates the second end 89 of the main body 71 downward and places it on the slide support 39. Then, the second pin 42 enters the second notch 87. In this state, the second restricting portion 86 is caught by the second pin 42, and the main body portion 71 is restricted from moving in the sliding direction.

  Moreover, when removing the main-body part 71, when performing the maintenance of the light source part 7, etc., it carries out as follows.

  The operator lifts the second end portion 89 side of the main body portion 71 so that the first end portion 88 is supported on the mounting frame 3 and is inclined (the state of the main body portion 71 in FIG. 13). In this state, the operator moves the main body 71 in the direction opposite to the sliding direction at the time of attachment. Thereby, the main-body part 71 can be drawn near and can be lifted and removed easily. Thus, according to the illuminating device 2 of this embodiment, even if the several main-body part 71 is arranged in linear form, it is also possible to remove only one main-body part 71 without removing all the main-body parts 71. Is possible.

  The main body 71 attached at the position farthest from the inspection port 12 is attached as described above, but the main body 71 adjacent to the main body 71 (the central main body 71) is the second restricting portion. It is attached to the attachment frame 3 using only 86. That is, the central main body 71 is moved downward from above, so that the connecting pin 40 enters the second restricting portion 86, whereby the main body 71 is attached to the mounting frame 3.

  A cover 91 is attached to each main body 71. The cover 91 is attached to the main body 71 by bonding, for example. This cover 91 may not be provided.

  In addition, the illumination device 2 is provided with a lower cover 92 disposed below the light guide plate 6 as shown in FIG. The lower cover 92 has translucency. The lower cover 92 is disposed below the frame body 31 of the mounting frame 3. An upper cover 93 is provided above the light guide plate 6. The upper cover 93 is attached so as to cover the upper part of the light guide plate 6. The upper cover 93 is attached so as to be in contact with the upper surface of the light guide plate 6, thereby preventing light leakage and preventing light loss to improve efficiency and protecting the light guide plate 6.

  As described above, the lighting device 2 according to the present embodiment includes the following first feature. In the first feature, the lighting device 2 includes a mounting frame 3 provided at the periphery of the opening of the mounting opening 15 on the ceiling, and a lighting fixture 5 that is mounted on the mounting frame 3 and illuminates the room. The lighting fixture 5 includes a light source unit 7 and a light guide plate 6. The light source unit 7 has a longitudinal direction along one side of the mounting frame 3 and emits light in a direction perpendicular to the longitudinal direction. The light guide plate 6 is attached so as to cover the attachment opening 15 adjacent to the light source unit 7 in the light emitting direction. The light guide plate 6 takes in light emitted from the light source unit 7 from the end surface and emits it from the lower surface, thereby illuminating the room. The light source unit 7 is separated from the main body part 71, the first restriction part 84 provided at the first end part 88 of the main body part 71, and the main body part 71 from the first restriction part 84 to the second end part 89 side. And a second restricting portion 86 provided at the position. The main body portion 71 supports the first end portion 88 on the upper surface of the mounting frame 3 and the second end portion 89 opposite to the first end portion 88 away from the upper surface of the mounting frame 3. Can slide on top. The first restricting portion 84 allows movement in the sliding direction and restricts the position in the vertical direction. The second restricting portion 86 allows movement in the vertical direction and restricts position in the sliding direction. The light source unit 7 is attached to the attachment frame 3 as follows. An operator supports the first end portion 88 of the main body portion 71 on the upper surface of the mounting frame 3 and slides the second end portion 89 away from the mounting frame 3 so that the first restricting portion 84 is moved to the mounting frame 3. The second restricting portion 86 side is placed on the attachment frame 3 in a state where the position is restricted to the position.

  According to the illuminating device 2 having the first feature, when the long light source unit 7 is attached, one end portion can be slid on the attachment frame 3 and easily attached. Workability will be good.

  Moreover, it is preferable that the illuminating device 2 of this embodiment has the 2nd characteristic or the 3rd characteristic shown below. The second feature or the third feature is not necessarily a configuration necessary for the present invention, but is an arbitrary configuration.

  In the second feature, in the first feature, the first restricting portion 84 is configured by a notch opened in the sliding direction. The 2nd control part 86 is comprised by the notch opened below.

  According to the illuminating device 2 having the second feature, it is possible to improve the workability of attachment or removal with a simple configuration. In particular, when the first restricting portion 84 is configured by a notch (first notch 85), the workability can be further improved because the first restricting portion 84 can be positioned using the back portion of the notch.

  In the third feature, in the first or second feature, the light source unit 7 includes a plurality of main body portions 71. The plurality of main body portions 71 are arranged linearly along the attachment frame 3.

  According to the lighting device 2 having the third feature, even when a plurality of main body portions 71 are arranged, only one main body portion 71 can be removed. That is, the light source unit 7 of the present embodiment lifts the second end portion 89 of the main body unit 71, slides it, and removes it. Therefore, even when other main body units 71 are adjacent to each other, the target light source The part 7 can be drawn to the operator side.

  Moreover, the attachment structure of the illuminating device 2 of this embodiment has the following 4th characteristic. In the fourth feature, the lighting device 2 having any one of the first to third features is attached to the ceiling having the inspection port 12. The inspection port 12 is arranged so as to be aligned with the mounting opening 15. The light source unit 7 is attached to one side of the attachment frame 3 on the side adjacent to the inspection port 12. The first restricting portion 84 of the light source unit 7 is provided at an end portion on the side away from the inspection port 12.

  According to the attachment structure of the lighting device 2 having the fourth feature, when the operator attaches the light source part 7 through the inspection port 12, the first end part 88 of the main body part 71 can be slid and attached. The workability of attaching or removing the long main body 71 can be improved.

  In addition, although the light source part 7 of this embodiment was comprised by the three main-body parts 71, for example, you may be comprised by one elongate main-body part 71, and especially the quantity of the main-body parts 71 is in this invention. It is not limited.

DESCRIPTION OF SYMBOLS 1 Room 11 Ceiling panel 12 Inspection port 15 Mounting opening 2 Illuminating device 3 Mounting frame 31 Frame main body 32 Long frame 33 Short frame 34 Holding member 36 Mounting member 39 Slide support part 40 Connecting pin 41 First pin 42 Second pin 5 Lighting fixture 6 Light Guide Plate 61 Incident Surface 62 Diffusion Portion 63 Output Surface 7 Light Source Portion 71 Main Body 80 Covering Portion 81 Projection 82 Transmission Portion 83 Pressing Projection 84 First Regulating Portion 85 First Notch 851 Introducing Portion 86 Second Regulating Portion 87 Second notch 88 First end 89 Second end

Claims (4)

A mounting frame provided on the periphery of the opening of the ceiling mounting opening;
A lighting device comprising a lighting fixture attached to the mounting frame and illuminating a room,
The lighting fixture is:
A light source unit having a longitudinal direction along one side of the mounting frame and emitting light in a direction perpendicular to the longitudinal direction;
A light guide plate that is adjacent to the light source portion in the light emitting direction and is attached so as to cover the attachment opening, takes light emitted from the light source portion from the end surface, and emits it from the lower surface, thereby illuminating the room. Prepared,
The light source unit is
The first end in the longitudinal direction is supported on the upper surface of the mounting frame, and the second end opposite to the first end is separated from the upper surface of the mounting frame and slides on the mounting frame. Possible body part,
A first restricting portion provided at the first end portion of the main body portion, allowing movement in the sliding direction and restricting position in the vertical direction;
A second restricting portion that is provided at a position away from the first restricting portion toward the second end portion in the main body, and that allows movement in a vertical direction and restricts a position in the sliding direction. And
A state in which the first end portion of the main body portion is supported on the upper surface of the mounting frame and the second end portion is slid in a state of being separated from the mounting frame, and the position of the first regulating portion is regulated by the mounting frame. Thus, the second regulating part side is placed on the mounting frame, whereby the light source part is attached to the mounting frame. The first restricting portion is constituted by a notch opened in the sliding direction,
The lighting device according to claim 1, wherein the second restricting portion includes a notch opened downward. The light source unit has a plurality of the main body units,
The lighting device according to claim 1, wherein the plurality of main body portions are linearly arranged along the mounting frame. The illuminating device according to any one of claims 1 to 3, wherein the illuminating device is attached to a ceiling having an inspection port.
The inspection port is arranged to line up with the mounting opening,
The light source is attached to one side of the mounting frame on the side adjacent to the inspection port,
The lighting device mounting structure, wherein the first restricting portion of the light source portion is provided at an end portion on a side away from the inspection port.

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