JP2016096046A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve waterproof performance more than a conventional one.SOLUTION: A waterproof member 5 is formed in a cylindrical shape, and has one or a plurality of bosses 503 which are inserted separately in one or a plurality of through-holes 300. The boss 503 has a cylindrical shape having an insertion hole 504 in which a lock screw 8 is inserted, and it is configured so that a tip portion 5030 protrudes from the through-hole 300. The tip portion 5030 is configured in such a manner that an outer diameter gradually increases toward the through-hole 300 from a tip surface pressed to a head part 80 of the lock screw 8. Therefore, by pressing the tip surface by the head part 80 of the lock screw 8, the tip portion 5030 of the boss 503 can be deformed to be pulled down inwardly. As a result, a lighting fixture of the embodiment can achieve improvement of waterproof performance more than a conventional one, by preventing rainwater from infiltrating by closely adhering an inner peripheral surface of the insertion hole 504 and the lock screw 8.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a lighting fixture, and more particularly to a waterproof lighting fixture that is exposed to rain or the like.

  As a conventional example, a lighting apparatus described in Patent Document 1 is illustrated. The conventional example described in Patent Document 1 is a waterproof luminaire installed in a place exposed to wind and rain such as a platform of a station. This conventional example includes two light source units, an instrument body, a power supply unit, a waterproof member, and the like.

  The light source unit uses a light emitting diode as a light source and is formed in a long rod shape. The instrument body is formed in a long rectangular tube shape in which the cross-sectional shape perpendicular to the longitudinal direction is a trapezoid. The instrument main body is attached to the attachment surface on the wider bottom surface side, and two light source units are aligned in the longitudinal direction and screwed to the narrow bottom surface. The power supply unit is housed in the instrument body and is electrically connected to each light source unit by an electric cable.

  The waterproof member is formed into a flat rectangular box shape by an elastic material such as silicone resin, and is covered on the upper surface (surface attached to the instrument body) of the light source unit. That is, the waterproof member is disposed between the upper surface of the light source unit and the bottom surface of the instrument body, and is compressed when the light source unit is screwed to the instrument body, so that a gap between the light source unit and the bottom surface of the instrument body is obtained. Is configured to prevent flooding.

  Here, the waterproof member is provided with a cylindrical boss protruding upward. The boss is inserted through a hole penetrating the bottom plate of the instrument main body (the part where the light source unit is screwed). Then, a fixing screw is inserted into the insertion hole penetrating the boss, and the fixing screw is screwed into the female screw of the light source unit arranged below the insertion hole. In other words, the boss is configured to close the hole in the bottom plate of the instrument body and the female screw of the light source unit to prevent water from entering.

JP 2014-22138 A

  Incidentally, in the conventional example described in Patent Document 1, the tip portion of the boss is formed in a cylindrical shape having a uniform outer diameter. Therefore, the tip portion of the boss is easily deformed in the direction of increasing the outer diameter when crushed by the head of the fixing screw. As a result, there is a possibility that the gap between the neck portion of the fixing screw (the boundary portion between the head and the shaft portion) and the inner peripheral surface of the insertion hole is not filled, and the water may be submerged through the gap.

  This invention is made | formed in view of the said subject, and aims at aiming at the improvement of waterproof performance rather than before.

  The lighting fixture of this invention is equipped with the fixture main body, the waterproof member, and the light source unit supported by the said fixture main body via the said waterproof member, The said light source unit supports the light source, the said light source, and 1 An attachment member screwed to the instrument body by one or a plurality of fixing screws, and the instrument body is provided with through-holes in one or more parts to which the attachment member is screwed, The mounting member is provided with a female screw portion at a position facing one or more of the through holes, and the waterproof member is formed in a cylindrical shape and is inserted through one or more of the through holes. One or a plurality of bosses, the boss is a cylindrical shape having an insertion hole through which the fixing screw is inserted, and is configured such that a tip portion protrudes from the through hole, Pressed by the head of the fixing screw From the end face, characterized in that it is configured to gradually increase the outer diameter toward the through hole.

  The lighting fixture of the present invention has an effect that the waterproof performance can be improved as compared with the conventional one.

It is a disassembled perspective view which shows embodiment of the lighting fixture which concerns on this invention. It is sectional drawing same as the above. It is sectional drawing same as the above. FIG. 4A is a front view, FIG. 4B is a left side view, and FIG. 4C is a cross-sectional view. 5A and 5B are cross-sectional views of the waterproof member. FIG. 6A is a cross-sectional view of the main part showing the waterproof member mounting structure in the above, and FIG. 6B is a cross-sectional view of the main part showing the waterproof member mounting structure in the comparative example.

  Hereinafter, embodiments of a lighting apparatus according to the present invention will be described in detail with reference to the drawings. In addition, although the lighting fixture of this embodiment is a lighting fixture installed in the platform of a station etc., it is not limited to this, The technical idea of this invention is applicable to the waterproof type lighting fixture in general. In this embodiment, a light emitting diode is used as the light source. However, a light source other than the light emitting diode, for example, an organic electroluminescence element may be used.

  The lighting fixture of this embodiment is provided with the fixture main body, the waterproof member 5, and the light source unit 1 supported by the fixture main body via the waterproof member 5, as shown in FIGS. Moreover, it is preferable that the lighting fixture of this embodiment is provided with the power supply unit 4. FIG. However, in the following description, unless otherwise specified, the directions of front and rear, left and right, and top and bottom are defined in FIG.

  As shown in FIG. 2, the light source unit 1 preferably includes an LED module 10, a heat radiating member 11, an insulating member 12, a mounting member 13, a cover 14, and the like. The LED module 10 includes a mounting substrate 100 and a plurality of light emitting diodes. The mounting substrate 100 is preferably formed in a long plate shape by an insulating material (for example, ceramic). The plurality of light emitting diodes are preferably mounted on the central portion (center portion in the front-rear direction) of the lower surface of the mounting substrate 100 so as to be arranged in a straight line at equal intervals along the longitudinal direction (left-right direction). The plurality of light emitting diodes are preferably sealed with a sealing member 101 made of a synthetic resin having translucency and mixed with a fluorescent material. That is, a part of the light emitted from the light emitting diode (for example, blue light) is wavelength-converted by the fluorescent material, and the wavelength-converted light (for example, yellow light) and the light that has not been wavelength-converted (blue light) are mixed. As a result, the light emitted from the LED module 10 becomes white light as a whole. Note that a conductor that electrically connects the cathode and anode of each light emitting diode is formed on the lower surface of the mounting substrate 100.

  The heat radiating member 11 preferably has a main piece 110 and a pair of side pieces 111. The main piece 110 is formed in a long flat plate shape, and the LED module 10 is placed via the insulating member 12. The pair of side pieces 111 is preferably configured to extend in the thickness direction of the main piece 110 from both ends (both ends along the longitudinal direction) of the main piece 110. The main piece 110 and the pair of side pieces 111 are preferably formed integrally with a material having high thermal conductivity (for example, an aluminum plate).

  In the insulating member 12, it is preferable that the flat plate portion 120, the pair of contact portions 121, and the pair of reflection portions 122 are integrally formed as a synthetic resin molded body. The flat plate portion 120 is interposed between the main piece 110 of the heat radiating member 11 and the LED module 10. The contact portion 121 is configured to rise in a direction approaching the LED module 10 from both ends (both ends along the longitudinal direction) of the flat plate portion 120. The reflection part 122 is configured to protrude from the tip of each contact part 121. In addition, the reflection part 122 is inclined so as to open outward as it is away from the contact part 121, and the lower surface facing the LED module 10 serves as a reflection surface to reflect light emitted from the LED module 10 downward. Composed. The main piece 110 of the heat radiating member 11 is provided with a protrusion 112. The protruding portion 112 is inserted into an elongated insertion hole 123 that penetrates through the center of the flat plate portion 120 in a state where the insulating member 12 is placed on the main piece 110 of the heat radiating member 11. That is, the protrusion 112 inserted through the insertion hole 123 contacts the mounting substrate 100, and the heat generated by the light emitting diode is conducted from the mounting substrate 100 to the heat radiation member 11 through the protrusion 112 to be dissipated.

  The attachment member 13 is preferably formed in a square shape by bending a metal plate such as a steel plate. Moreover, it is preferable that the attachment member 13 is fixed to the heat radiating member 11 in a state of being accommodated between the side pieces 111. Furthermore, it is preferable that the receptacle connector 16 is attached to the attachment member 13 using the attachment metal 15 (see FIG. 3). The mounting bracket 15 has a rectangular frame-shaped connector holding portion that holds the receptacle connector 16 and is attached to the upper side of the mounting member 13.

  The receptacle connector 16 has a connection terminal portion to which an electric wire electrically connected to the conductor of the light source unit 1 is connected, and two connector connection portions into which the plug connector 7 is inserted. The plug connector 7 is electrically connected to the power supply unit 4 via an electric wire, and is plugged into the receptacle connector 16 so that it can be inserted and removed. That is, the plug connector 7 is plugged into the receptacle connector 16 so that the power supply unit 4 and the light source unit 1 are electrically connected, and power is supplied from the power supply unit 4 to the light source unit 1 so that the LED module 10 emits light (lights up). To do.

  The cover 14 is preferably formed in a long rectangular box shape having a bottom part 140 and a side part 141 surrounding the bottom part 140 by a synthetic resin material having translucency such as an acrylic resin or a polycarbonate resin. In addition, a plurality of engaging recesses are formed in the pair of side portions 141 along the longitudinal direction so that the plurality of engaging protrusions formed on the side piece 111 of the heat radiating member 11 are detachably engaged. Is preferred. The cover 14 is attached to the heat radiating member 11 so that the LED module 10, the heat radiating member 11, the insulating member 12, and the mounting member 13 are accommodated therein, and the plurality of engaging protrusions of the heat radiating member 11 are engaged with the side portions. It is preferable to be fixed to the heat radiating member 11 by engaging with the joint recess.

  The reflecting member 3 includes a lower bottom portion 30 that is substantially parallel to a horizontal plane, a pair of side wall portions 31 that protrude obliquely upward from an edge along the longitudinal direction of the lower bottom portion 30, and a short side direction of the lower bottom portion 30. It is preferably formed in a box shape having a pair of terminal portions 32 protruding upward from the edge. Then, after the waterproof member 5 described later is attached, the two light source units 1 are attached to the lower surface side of the lower bottom portion 30 by screwing the attachment member 13 to the lower bottom portion 30. That is, it is preferable that the lower base 30 is provided with a total of four through holes 300 through which the fixing screws 8 for screwing the light source unit 1 are inserted, two for each light source unit 1 (FIG. 3). reference). However, these four through holes 300 are preferably arranged in a straight line along the longitudinal direction of the lower bottom portion 30 so that the two light source units 1 are arranged in a straight line along the longitudinal direction.

  Moreover, it is preferable that the lower base 30 of the reflecting member 3 has two insertion holes 33 through which the mounting bracket 15 and the receptacle connector 16 of the light source unit 1 are inserted, respectively, at both ends in the longitudinal direction (see FIG. 2). . Accordingly, when the light source unit 1 is attached to the lower surface side of the lower bottom portion 30, the receptacle connector 16 of each light source unit 1 is disposed on the upper surface side of the reflecting member 3 (lower bottom portion 30) together with the mounting bracket 15 through the two insertion holes 33. (See FIG. 3). Moreover, the internal thread part 34 is provided in the both ends of the longitudinal direction of the lower bottom part 30, and the reflection member 3 is fixed to the main-body part 2 with the screw 35 screwed in each internal thread part 34 (refer FIG. 3).

  The main body 2 preferably includes a main portion 20 formed in a long square hook shape and two fixing portions 21 respectively disposed at both ends in the longitudinal direction of the main portion 20. A plurality of bolt insertion holes 22 are preferably provided on the bottom surface of the main portion 20. For example, a mounting bolt suspended from the roof of the platform is inserted into the bolt insertion hole 22, and a nut is fastened to the mounting bolt, whereby the main body 2 is attached to the mounting bolt. Moreover, it is preferable that the introduction hole 23 into which the power source wire wired on the roof of the platform is introduced substantially at the center in the longitudinal direction on the bottom surface of the main portion 20. The power line introduced from the introduction hole 23 is connected to the power terminal portion 42 of the power unit 4.

  The fixing portion 21 is preferably integrally formed by bending a metal plate with a pair of leg pieces 211 and a flat plate-like fixing piece 210 that connects the lower ends of the pair of leg pieces 211. Each leg piece 211 is provided with two engagement holes 2110 at the upper end portion. A screw hole 2100 passes through the center of the fixed piece 210. Then, the two engagement claws 240 bent and raised from the side wall 24 along the longitudinal direction of the main portion 20 are engaged with the respective engagement holes 2110, whereby the pair of leg pieces 211 are coupled to the side wall 24. The fixing portion 21 is attached to the main portion 20.

  The power supply unit 4 includes a power conversion circuit that converts AC power supplied via a power supply line into DC power, etc., stored in a metal case 40, and further stored in a waterproof case 41. It is preferable to attach to the part 2 (refer FIGS. 1-3). As shown in FIG. 3, the power supply unit 4 is preferably provided with two output terminal portions 43 on one end side in the longitudinal direction and a power supply terminal portion 42 on the other end side in the longitudinal direction. The plug connector 7 is preferably provided at each end of the electric wire connected to each output terminal portion 43 of the power supply unit 4.

  As shown in FIGS. 4A and 5A, the waterproof member 5 is a material in which a flat rectangular box-shaped base 50 having an open lower surface and a box 51 protruding from the upper surface of one end in the longitudinal direction of the base 50 are elastic ( For example, it is preferably formed integrally with a silicone resin. The waterproof member 5 is attached to the light source unit 1 so as to be covered from the upper surface side (the attachment member 13 side) as shown in FIGS.

  The base 50 is formed in a rectangular flat plate shape and is in close contact with the upper surface of the light source unit 1, a side wall portion 501 that hangs from the periphery of the main portion 500 over the entire circumference, and the main portion 500 and the side wall portion 501. And a projecting portion 502 projecting upward from the entire connecting portion.

  The main portion 500 is preferably provided with bosses 503 projecting upward at positions that are substantially divided into four along the longitudinal direction. These two bosses 503 are preferably penetrated by insertion holes 504 (see FIGS. 4C and 5B). A fixing screw 8 for screwing the attachment member 13 to the lower bottom portion 30 of the reflecting member 3 is inserted into these insertion holes 504.

  As shown in FIG. 5A, the side wall portion 501 is preferably provided with a plurality of (two in the illustrated example) ribs 505 in pressure contact with the side portion 141 of the cover 14 of the light source unit 1. These ribs 505 have a triangular prism shape, and are preferably provided so as to protrude from the inner peripheral surface of the side wall portion 501 over the entire periphery in parallel in the vertical direction. Moreover, it is preferable that the front-end | tip (lower end) of the side wall part 501 is formed in the shape which inclined in the direction which leaves | separates from the side part 141 of the cover 14 as it approaches the main part 500 (refer FIG. 5B).

  The box 51 is preferably formed in a rectangular box shape with an open bottom surface, and a pair of electric wire holding portions 511 are preferably provided projecting downward at one end in the longitudinal direction of the bottom wall 510 (see FIG. 2). The electric wire holding part 511 preferably has an electric wire insertion hole 5110 having a circular cross section and penetrating in the vertical direction, and a plurality of protrusions 5111 protruding from the inner peripheral surface of the electric wire insertion hole 5110 along the circumferential direction. . The electric wire connected to the plug connector 7 is inserted into the electric wire insertion hole 5110. Then, when the tip of the protrusion 5111 is in pressure contact with the coating of the electric wire, the electric wire is prevented from coming off from the electric wire insertion hole 5110, and water is prevented from entering the box 51 through the electric wire.

  Thus, the plug connector 7 is electrically connected to the receptacle connector 16 of the light source unit 1, and the electric wire electrically connected to the plug connector 7 is inserted into the electric wire insertion hole 5110 of the electric wire holding portion 511 to be a box. 51 is pulled out. Thereafter, the waterproof member 5 is attached to the light source unit 1 so that the upper portion of the light source unit 1 is accommodated in the opening of the base 50 (see FIG. 2). Here, since the rib 505 provided on the side wall portion 501 of the waterproof member 5 is pressed against the side portion 141 of the cover 14 of the light source unit 1, the waterproof property of the gap between the side wall portion 501 and the side portion 141 of the cover 14 is improved. Improvement is achieved. Furthermore, since the space | interval of the side wall parts 501 of the waterproof member 5 is set to the above dimensions, the press-contact force of the rib 505 with respect to the side part 141 increases, and the further waterproofness improvement is achieved.

  The light source unit 1 is screwed to the instrument main body (the lower bottom 30 of the reflecting member 3) with the waterproof member 5 attached to the upper part. In other words, the mounting member 13 of the light source unit 1 is preferably provided with four female screw portions 130 into which the fixing screws 8 are respectively screwed so as to be arranged linearly along the longitudinal direction. These female screw portions 130 are preferably formed, for example, by burring the top plate of the attachment member 13.

  By the way, the boss 503 has a cylindrical shape having an insertion hole 504 through which the fixing screw 8 is inserted, and is inserted into the through hole 300 provided in the lower bottom portion 30 so that the tip portion 5030 protrudes from the upper surface of the lower bottom portion 30. (See FIGS. 5A and 5B). The distal end portion 5030 is configured to gradually increase the outer diameter from the distal end surface pressed by the head 80 of the fixing screw 8 toward the insertion hole 504. For example, the tip portion 5030 is preferably formed in a truncated cone shape. The boss 503 is preferably formed in a cylindrical shape below the distal end portion 5030 and a base end portion connected to the main portion 500 is formed in a truncated cone shape.

  Further, the insertion hole 504 preferably includes a first insertion hole 5040 and a second insertion hole 5041 connected to the first insertion hole 5040 (see FIG. 5B). The first insertion hole 5040 is preferably provided on the side close to the tip surface of the boss 503. The second insertion hole 5041 is preferably configured to be connected to an end portion that is larger than the inner diameter of the first insertion hole 5040 and is farther from the distal end surface of the first insertion hole 5040. Furthermore, it is preferable that a boundary portion between the first insertion hole 5040 and the second insertion hole 5041 in the insertion hole 504 is formed in a truncated cone shape that gradually decreases the inner diameter toward the tip surface (see FIG. 5B). . Note that the insertion hole 504 is configured to overlap the female screw portion 130 of the mounting member 13 along the front, rear, left, and right directions in a state where the waterproof member 5 is mounted on the upper portion of the light source unit 1.

  Next, a procedure for attaching the light source unit 1 to which the waterproof member 5 is attached to the instrument main body (the lower bottom portion 30 of the reflecting member 3) will be described with reference to FIG. 6A. In addition, after the light source unit 1 is attached, the reflection member 3 is fixed to the main body 2 that is attached to the attachment bolt in advance.

  First, the operator inserts the two bosses 503 of the waterproof member 5 into the two through holes 300 of the lower bottom portion 30. Subsequently, the operator inserts the fixing screws 8 into the insertion holes 504 of the bosses 503 inserted into the through holes 300 via the washers 9, respectively, and screws the fixing screws 8 into the female screw portions 130 overlapping the insertion holes 504. When the two fixing screws 8 are respectively screwed into the female screw portions 130 of the attachment member 13, the light source unit 1 is screwed and attached to the instrument body (reflecting member 3) via the waterproof member 5.

  By the way, as the operator tightens the fixing screw 8, the distance between the head 80 of the fixing screw 8 and the mounting member 13 is shortened, and the tip portion 5030 of the boss 503 is moved from the head 80 of the fixing screw 8 through the washer 9. Receives downward force. At this time, if the outer diameter of the tip portion 5030 of the boss 503 is constant as in the comparative example shown in FIG. 6B, the tip portion 5030 faces outward when receiving a force from the head 80 of the fixing screw 8. There is a high possibility that it will be deformed to fall down. When the tip portion 5030 of the boss 503 is deformed so as to fall outward, the insertion hole 504 is enlarged, and a gap is easily generated between the inner peripheral surface of the insertion hole 504 and the shaft portion 81 of the fixing screw 8.

  On the other hand, in this embodiment, since the outer diameter of the tip portion 5030 of the boss 503 is gradually increased toward the through hole 300, compared to the case where the outer diameter of the tip portion 5030 is constant, A stress that tends to tilt the tip portion 5030 inward is likely to occur. And if the front-end | tip part 5030 of the boss | hub 503 deform | transforms so that it may fall inward, the 1st penetration hole 5040 will become small, the internal peripheral surface of the 1st penetration hole 5040, the axial part (male thread part) 81 of the fixing screw 8, and Is in close contact. As a result, the illuminating device of the present embodiment makes it difficult for rainwater to enter between the fixing screw 8 and the insertion hole 504 of the boss 503, and can improve the waterproof performance as compared with the conventional case.

  Further, since the inner diameter of the second insertion hole 5041 is larger than the inner diameter of the first insertion hole 5040, the distal end portion 5030 that has received the downward force is deformed so as to enter the second insertion hole 5041, and the first insertion hole 5041 is deformed. The insertion hole 5040 is further reduced (see FIG. 6A). As a result, the close contact degree between the inner peripheral surface of the first insertion hole 5040 and the shaft portion 81 of the fixing screw 8 can be increased.

  As described above, the lighting fixture of the present embodiment includes the fixture main body (the main body 2 and the reflection member 3), the waterproof member 5, and the light source unit 1 supported by the fixture main body via the waterproof member 5. The light source unit 1 includes a light source (LED module 10) and a mounting member 13 that supports the light source and is screwed to the instrument body by one or a plurality of fixing screws 8. The instrument body is provided with through-holes 300 at one or a plurality of sites where the attachment member 13 is screwed. Each of the attachment members 13 is provided with a female screw portion 130 at a position facing one or more through holes 300. The waterproof member 5 is formed in a cylindrical shape, and has one or a plurality of bosses 503 that are individually inserted into one or a plurality of through holes 300. The boss 503 has a cylindrical shape having an insertion hole 504 through which the fixing screw 8 is inserted, and is configured such that a tip portion 5030 protrudes from the through hole 300. The distal end portion 5030 is configured to gradually increase the outer diameter from the distal end surface pressed by the head 80 of the fixing screw 8 toward the through hole 300.

  The lighting fixture of the present embodiment is configured as described above, and the tip portion 5030 of the boss 503 can be deformed so as to be tilted inward by pressing the tip surface with the head 80 of the fixing screw 8. As a result, the lighting fixture of this embodiment makes it difficult for rainwater to enter by bringing the inner peripheral surface of the insertion hole 504 and the fixing screw 8 into close contact with each other, and can improve the waterproof performance as compared with the related art.

  Moreover, in the lighting fixture of this embodiment, it is preferable that the insertion hole 504 includes a first insertion hole 5040 and a second insertion hole 5041 connected to the first insertion hole 5040. The first insertion hole 5040 is preferably provided on the side close to the tip surface of the boss 503. The second insertion hole 5041 is preferably configured to be connected to an end portion that is larger than the inner diameter of the first insertion hole 5040 and is farther from the distal end surface of the first insertion hole 5040.

  If the lighting fixture of this embodiment is comprised as mentioned above, the front-end | tip part 5030 pushed by the head 80 of the fixing screw 8 will deform | transform so that it may enter in the 2nd penetration hole 5041, and the 1st penetration hole 5040 is made. It can be further reduced. As a result, the lighting fixture of the present embodiment can increase the degree of adhesion between the inner peripheral surface of the first insertion hole 5040 and the shaft portion 81 of the fixing screw 8 and can further improve the waterproof performance.

  Note that the head 80 of the fixing screw 8 may be configured to directly push the tip portion 5030 of the boss 503 without passing the washer 9. Moreover, it is preferable that a burring process is performed when the through-hole 300 is formed in the lower bottom part 30, and the truncated cone-shaped protrusion 301 is provided around the through-hole 300 in the lower bottom part 30 (refer FIG. 6A). In this case, the head 80 of the fixing screw 8 is brought into contact with the tip of the projection 301 directly or through the washer 9, so that the instrument main body (the main body 2 and the reflecting member 3) and the light source unit 1 are connected via the fixing screw 8. The attachment member 13 can be electrically connected.

1 Light source unit 2 Body (apparatus body)
3 Reflective members (equipment body)
5 Waterproof material 8 Fixing screw 10 LED module (light source)
13 Mounting member 80 Head 130 Female thread part 300 Through hole 503 Boss 504 Insertion hole 5030 Tip part 5040 First insertion hole 5041 Second insertion hole

Claims (2)

An instrument body, a waterproof member, and a light source unit supported by the instrument body via the waterproof member,
The light source unit includes a light source and a mounting member that supports the light source and is screwed to the instrument body by one or more fixing screws,
The instrument body is provided with through holes in one or a plurality of parts to which the attachment member is screwed,
The mounting member is provided with a female screw portion at a position facing one or more of the through holes,
The waterproof member is formed in a cylindrical shape, and has one or a plurality of bosses inserted through one or a plurality of the through holes,
The boss has a cylindrical shape having an insertion hole through which the fixing screw is inserted, and is configured such that a tip portion projects from the through hole,
The lighting device is characterized in that the tip portion is configured to gradually increase the outer diameter from the tip surface pressed by the head of the fixing screw toward the through hole. The insertion hole has a first insertion hole and a second insertion hole connected to the first insertion hole,
The first insertion hole is provided on a side close to the tip surface of the boss,
The said 2nd insertion hole is comprised so that it may be connected with the edge part larger than the internal diameter of the said 1st insertion hole, and the far side from the said front end surface of the said 1st insertion hole. lighting equipment.

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