JP2012033406A - Waterproof device for lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof device for a lighting fixture capable of effectively preventing infiltration of water from the outside to the inside of a case.SOLUTION: The waterproof device for a lighting fixture includes a case 2 for internally storing the lighting fixture 1, a mounting base 3 wherein its upper face is fixed on a built surface and the case 2 is fixed on its lower face so as to block an opening of the case 2, a fixture mounting base 4 wherein its upper face is fixed on a lower face of the mounting base 3 and the lighting fixture 1 is detachably supported on its lower face, and a sealing member 5 intervening between the mounting base 3 and the fixture mounting base 4 and mounted so as to make the lower face cover the opening of the case 2. The case 2 has a collar-shaped flange 21 projected outward from an outer peripheral edge of the opening. The sealing member 5 has a first peripheral wall 51A projected downward so as to cover an outer wall 22 of the flange 21, and a second peripheral wall 57B projected downward so as to cover an inner wall 23 of the flange 21, and the second peripheral wall 57B is internally in contact with a side piece 41 of the fixture mounting base 4.

Description

  The present invention relates to a waterproof device for a lighting fixture used for a lighting fixture such as a guide lamp.

  2. Description of the Related Art Conventionally, a guide light having a waterproof structure is installed in a place where rainwater may be splashed, such as outdoors, in order to prevent water from entering the inside of the guide light. A guide light having such a waterproof structure is disclosed in Patent Document 1, for example. This guide light includes a guide light body fixed to the ceiling, a transparent case having an upper opening in which the derivative body is accommodated, and a mounting base for fixing the transparent case to the ceiling. The main body of the guide lamp has a guidance display on the display panel, and internally includes a light source that irradiates the display panel from the inside and a battery-operated uninterruptible power supply circuit that turns on the light source during a power failure. The mounting base has a peripheral wall into which the upper end opening of the transparent case is placed inside. The transparent case has a flange that protrudes outward in the horizontal direction. Thus, the transparent case is transparent from the outside by connecting the transparent case to the mounting base by putting the upper end opening of the transparent case inside the peripheral wall of the mounting base and bringing the flange into contact with the peripheral wall of the mounting base via packing. Prevents rainwater from entering the case.

JP 2005-1000068 A

  However, the above conventional example has a waterproof structure for waterproofing between the transparent case and the mounting base, but does not have a waterproof structure when water enters between the transparent case and the mounting base. . For this reason, if there is a slight gap between the transparent case and the mounting base, there is no means for blocking the water that has entered from the gap, so there is a possibility that water may enter the transparent case. In particular, in places exposed to wind and rain, such as outdoors, even if light rain can provide a sufficient waterproof function, heavy rain cannot provide a sufficient waterproof function, and water can penetrate from the outside into the transparent case as described above. There was a fear.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a waterproof device for a lighting fixture that can more effectively prevent water from entering the case from the outside.

  The waterproof device for a lighting fixture according to the present invention includes a case that opens on one side and houses the lighting fixture inside, and a plate on which the back is fixed to the construction surface and the case is fixed so as to close the opening on the front A plate-shaped mounting base, a plate-shaped mounting base on which the back surface is fixed to the front surface of the mounting base and the lighting fixture is detachably supported on the front surface, and the mounting base and the mounting base for the tool And a plate-like sealing member attached so that the front surface covers the opening of the case, and the case includes a flange-like flange protruding outward from the outer peripheral edge of the opening The sealing member has a first sealing portion having a first peripheral wall projecting forward so as to cover an outer peripheral edge of the flange of the case, and forward facing so as to cover an inner peripheral edge of the opening of the case. The second peripheral wall protruding into And a second sealing portion having the second wall of the second sealing portion, characterized in that the outer peripheral edge of the mount for the instrument on the inside abuts.

  In this waterproof device for lighting equipment, the flange of the case is preferably formed with a water receiving portion that is recessed forwardly between the first sealing portion and the second sealing portion. .

  In this waterproof device for a lighting fixture, it is preferable that the water receiving portion is provided with a drain hole for discharging water received by the water receiving portion to the outside of the case.

  In this waterproof device for a lighting fixture, it is preferable that a third peripheral wall protruding toward the construction surface is provided on the back surface of the sealing member.

  In the waterproof device for a lighting fixture, each of the first sealing portion and the second sealing portion has a groove portion that is fitted to a facing portion, and the first sealing portion and the first sealing portion It is preferable that at least any one of the two sealing portions is provided with a protrusion that protrudes from a bottom portion of the groove portion toward a facing portion.

  In this waterproof device for a lighting fixture, it is preferable that the sealing member and the mounting base are each provided with an opening for draining at a portion facing the flange of the case.

  The present invention covers the outer peripheral edge of the flange of the case with the first peripheral wall of the first sealing portion, and further covers the inner peripheral edge of the opening of the case with the second peripheral wall of the second sealing portion. Double entry of water from the outside to the inside of the case is prevented. Accordingly, it is possible to more effectively prevent water from entering the case from the outside.

It is sectional drawing which shows embodiment of the illuminating device for lighting fixtures which concerns on this invention. It is an exploded perspective view same as the above. It is a figure which shows a case same as the above, (a) is a front view, (b) is a top view. It is a figure which shows a mounting base same as the above, (a) is a top view, (b) is an A-A 'line cross-sectional view of (a). It is a figure which shows the mounting base for instruments same as the above, (a) is a bottom view, (b) is a front view. It is a figure which shows a sealing member same as the above, (a) is a top view, (b) is a B-B 'line sectional view of (a). It is a figure which shows a sealing member same as the above, (a) is a bottom view, (b) is principal part sectional drawing. It is a figure which shows the 1st sealing part and 2nd sealing part same as the above, (a) is principal part sectional drawing of a sealing member, (b) is the sealing member in the state which attached the case and the mount. FIG. It is a whole perspective view same as the above.

  Hereinafter, embodiments of a waterproof device for a lighting apparatus according to the present invention will be described with reference to the drawings. In the following description, the vertical and horizontal directions in FIG. 1 are defined as the vertical and horizontal directions, the front side of the paper is defined as the front direction, and the back side of the paper is defined as the rear direction. In the present embodiment, “back” in the claims corresponds to “up” and “front” corresponds to “down”. As shown in FIGS. 1 and 2, the present embodiment includes a case 2 that houses a lighting fixture 1 therein, a mounting base 3 for fixing the case 2 to a construction surface (not shown), and a lighting fixture 1. An instrument mounting base 4 that is detachably supported and a sealing member 5 that covers the upper surface of the case 2 are provided.

  The luminaire 1 is a guide lamp in the present embodiment, and as shown in FIG. 1, display panels (not shown) provided with pictogram guidance displays are fixed to both front and rear sides of a square frame portion. Become. The luminaire 1 includes a light source (not shown) such as a fluorescent lamp that irradiates the display panel from the inside, a power supply circuit (not shown) that supplies lighting power to the light source during normal times, and supplies lighting power to the light source during a power failure Built-in battery-powered uninterruptible power supply circuit (not shown). In addition, in this embodiment, although the guide light is employ | adopted as the lighting fixture 1, the lighting fixture 1 is not limited to a guide light.

  The case 2 is formed of a light-transmitting material such as acrylic, for example, and as shown in FIGS. It is comprised from the flange-like flange 21 which protrudes outward from the outer periphery of an opening. The main body 20 is formed with a size that can accommodate the lighting fixture 1, and a circular drain hole 20 </ b> A is provided through the lower bottom portion thereof in the thickness direction. For this reason, even if water accumulates inside the main body 20, the accumulated water can be discharged to the outside of the case 2 through the drain hole 20 </ b> A.

  On the outer peripheral edge of the flange 21, an outer wall 22 projecting upward is integrally formed along the circumferential direction of the flange 21. Further, an inner wall 23 protruding upward is integrally formed along the circumferential direction of the flange 21 on the inner peripheral edge of the flange 21. A portion of the flange 21 surrounded by the outer wall 22 and the inner wall 23 is a water receiving portion 24 that receives water that has entered from the outside of the case 2. For this reason, even if water infiltrates from the outside of the case 2, the infiltrated water is accumulated in the water receiving portion 24, so that it is possible to prevent water from entering the main body portion 20 side. In addition, two circular drain holes 24A are provided in each of the left and right ends of the flange 21 so as to penetrate in the thickness direction. For this reason, even if water accumulates in the water receiver 24, the water accumulated through the drain hole 24 </ b> A can be taken out of the case 2. Further, circular drain holes 24B each having a diameter larger than the diameter of the drain hole 24A are provided in the left and right ends of the flange 21 so as to penetrate in the thickness direction. This drain hole 24B is provided so as to face a drain hole 30A of the mounting base 3 to be described later and a drain hole 50C of the sealing member 5 to be described later.

  Note that both the left and right walls of the inner wall 23 are provided with a certain distance from the inner peripheral edge of the opening of the case 2. Accordingly, a portion between the left wall of the inner wall 23 and the inner peripheral edge of the opening of the case 2 and a portion between the right wall of the inner wall 23 and the inner peripheral edge of the opening of the case 2 are respectively described in the instrument mounting base 4 described later. It is the step part 25 which can mount the left end part and right end part.

  Cylindrical boss portions 24 </ b> C that protrude upward are integrally formed at the four corners of the flange 21. Each boss portion 24C is provided with a circular screw insertion hole 24D for inserting a mounting screw (not shown), penetrating in the thickness direction. Each screw insertion hole 24D is provided so as to face a screw insertion hole 30B of the mounting base 3 to be described later and a screw insertion hole 50D of the sealing member 5 to be described later.

  By the way, the left and right side surfaces and the front and rear side surfaces of the main body 20 are inclined so as to approach each other as they go downward. This is because, when the case 2 is manufactured, a draft for making it easy to remove the main body 20 from the mold of the main body 20 is required. In addition, when a mounting screw is inserted into each screw insertion hole 24D of the flange 21 and tightened with a tool such as a screwdriver, it is necessary to secure a space that does not interfere with the hand holding the tool.

  As shown in FIGS. 4A and 4B, the mounting base 3 includes a rectangular plate-shaped main piece 30 formed of a metal plate such as a stainless steel plate made of SUS304, for example. The main piece 30 is provided with side pieces 31 formed by bending the outer peripheral edge upward along the circumferential direction of the mounting base 3. A rectangular base 32 is cut and raised at the center of the main piece 30 so as to protrude upward. The vertical dimension of the pedestal 32 is smaller than the vertical dimension of the side piece 31 so that the pedestal 32 does not protrude above the side piece 31. In addition, on both the front and rear sides of the base portion 32, long ventilation holes 33 that are notched along the longitudinal direction of the base portion 32 are provided so as to penetrate in the thickness direction. For this reason, even if hydrogen gas released from the battery of the uninterruptible power supply circuit is accumulated inside the case 2, a vent hole 55 </ b> A of the sealing member 5 described later, a vent hole 40 </ b> C of the instrument mounting base 4 described later, and these Hydrogen gas can be released to the outside through the vent hole 33.

  A rectangular first window hole 32A having rounded four corners is provided in the center portion of the base portion 32 so as to penetrate in the thickness direction. A power line mounting base 53 and an electric wire mounting base 54 of the sealing member 5 described later are inserted into the first window hole 32A, and the power line mounting base 53 and the electric wire mounting base 54 are inserted through the first window hole 32A. Projecting upward. In the periphery of the first window hole 32A, a pair of second oval windows 32B elongated in the front-rear direction, and a third window hole 32C elongated in the left-right direction are formed. Are provided penetrating in the thickness direction.

  Circular drain holes 30A are provided in the left and right ends of the main piece 30 so as to penetrate in the thickness direction. These drain holes 30A are provided so as to face the drain holes 24B of the case 2 and the drain holes 50C of the sealing member 5, which will be described later, as described above. For this reason, even if water accumulates on the upper surface of the main piece 30, the water accumulated through the drain holes 30 </ b> A, 24 </ b> B, 50 </ b> C can be released to the outside of the case 2.

  At the four corners of the main piece 30, cylindrical boss portions 30B projecting upward are integrally formed. These boss portions 30B are provided with circular screw insertion holes 30C through which the mounting screws are inserted in the thickness direction. As described above, these screw insertion holes 30C are provided so as to face the screw insertion holes 24D of the case 2 and the screw insertion holes 50D of the sealing member 5 described later. For this reason, this embodiment is fixed to the construction surface by inserting and tightening mounting screws into these screw insertion holes 30C, 24D, and 50D and screw insertion holes (not shown) provided on the construction surface. Can do. In addition, when fixing this embodiment to a construction surface, the back surface (in this embodiment, upper surface) of the mounting base 3 is fixed to a construction surface.

  Next to the left and right drain holes 30 </ b> A of the main piece 30, there are provided truncated cone portions 30 </ b> C that protrude upward. A circular screw insertion hole 30D is provided in the center of the upper bottom portion of the truncated cone portion 30C so as to penetrate in the thickness direction. Each screw insertion hole 30 </ b> D is provided so as to face a screw insertion hole 40 </ b> B of the instrument mounting base 4 described later and a screw insertion hole 50 </ b> A of the sealing member 5 described later. For this reason, by inserting the assembly screw 6 (see FIG. 2) into each screw insertion hole 30D, 40B, 50A and tightening, the mounting base 3 and the instrument mounting base 4 are sandwiched between the sealing members 5. Can be fixed to each other.

  As shown in FIGS. 5A and 5B, the instrument mounting base 4 includes a rectangular plate-shaped main piece 40 formed of a metal plate such as a stainless steel plate made of SUS304, for example. The main piece 40 is provided with side pieces 41 formed by bending the outer peripheral edge thereof downward along the circumferential direction of the main piece 40. In the central portion of the main piece 40, a rectangular window hole 40A having rounded four corners is provided penetrating in the thickness direction. A power line mounting base 53 and a wire mounting base 54 of the sealing member 5 described later are inserted into the window hole 40A.

  Circular screw insertion holes 40B are respectively provided in the left and right ends of the main piece 40 so as to penetrate in the thickness direction. As described above, each screw insertion hole 40B is provided so as to face the screw insertion hole 30D of the mounting base 3 and the screw insertion hole 50A of the sealing member 5 described later. Circular vents 40C are provided in the main piece 40 on both the left and right sides of the window hole 40A in the thickness direction. These air holes 40C are provided so as to face air holes 55A of the sealing member 5 described later. Further, in the vicinity of each vent hole 40C in the main piece 40, a fixture mounting screw 7 protruding downward is provided. These fixture screws 7 are for detachably fixing the lighting fixture 1 to the lower surface of the fixture mount 4 (see FIG. 1). In addition, since such an instrument mounting screw 7 is conventionally well-known, detailed description thereof is omitted here.

  The main piece 40 is provided with a plurality of circular protrusion insertion holes 40D penetrating in the thickness direction. These protrusion insertion holes 40D are provided at regular intervals along the outer peripheral edge of the main piece 40, and are also provided on the left and right sides of the window hole 40A. These protrusion insertion holes 40D are provided so as to face the first protrusions 50E of the sealing member 5 described later. A pair of quarter-raised cut-and-raised portions 40E that are cut and raised so as to protrude downward are provided on the left and right sides of the main piece 40 with the appliance mounting screws 7 interposed therebetween. These cut-and-raised portions 40E are provided so as to face second protrusions 50F of the sealing member 5 described later. Further, a pair of hemispherical protrusions 40F protruding upward are provided at both left and right ends of the main piece 40, respectively. These protrusions 40F are provided so as to face the recesses 50G of the sealing member 5 described later. The first protrusion 50E is fitted into the protrusion insertion hole 40D, the second protrusion 50F is fitted into the cut and raised part 40E, and the projection 40F is fitted into the recess 50G.

  As shown in FIGS. 6A and 6B, the sealing member 5 includes a rectangular plate-shaped main piece 50 made of a resin material having elasticity such as rubber. On the outer peripheral edge of the main piece 50, a side wall 51 that protrudes upward is integrally formed along the circumferential direction of the main piece 50. The mounting base 3 is arranged in a recess 52 that is recessed downwardly surrounded by the side wall 51 and the main piece 50. A cylindrical power line mounting base 53 for guiding an external power line (not shown) from the outside to the luminaire 1 is integrally formed in the center of the main piece 50 so as to penetrate vertically. Has been. Similarly, in the central part of the main piece 50, a rectangular tube-shaped electric wire mounting base 54 for guiding an electric wire (not shown) other than a power line such as a ground wire from the outside to the lighting fixture 1 is provided in the vertical direction. It is formed integrally with the power line mounting base 53 so as to penetrate therethrough.

  The power supply line mount 53 is provided with a pair of power supply line insertion portions 53 </ b> A that have an oval opening elongated in the left-right direction on the upper surface thereof and into which the power supply line is inserted. Further, the electric wire mounting base 54 is provided with two pairs of electric wire insertion portions 54A that have circular openings on the upper surface thereof and into which electric wires are inserted. As shown in FIG. 7B, the power supply line insertion portion 53A and the electric wire insertion portion 54A are both formed so that the inner walls thereof have concavities and convexities along the vertical direction. Further, the power supply line insertion portion 53A and the lower bottom portions 53B and 54B of the electric wire insertion portion 54A are formed in a thin film shape so that they can be pierced when inserting a power supply line or an electric wire. For this reason, the lower bottom portions 53B and 54B that are pierced when the power supply line or the electric wire is inserted are brought into close contact with the periphery of the power supply wire or the electric wire so that the external connection is made via the power supply line insertion portion 53A and the electric wire insertion portion 54A. Water can be prevented from entering the inside. The waterproof effect may be enhanced by filling a filler between the power line insertion portion 53A and the lower bottom portions 53B and 54B of the electric wire insertion portion 54A and the power supply line or the electric wire.

  Cylindrical cylindrical portions 55 that protrude upward are integrally formed on the left and right sides of the upper surface of the main piece 50 with the power supply line mounting base 53 and the electric wire mounting base 54 interposed therebetween. Each cylindrical portion 55 is provided with circular vent holes 55A penetrating in the vertical direction. These vent holes 55A are provided so as to face the vent holes 40C of the instrument mounting base 4 as described above. Cylindrical bosses 50B projecting downward are integrally formed at both left and right ends of the main piece 50, respectively. Each boss 50B is provided with a circular drain hole 50C penetrating in the thickness direction. These drain holes 50C are provided so as to face the drain holes 24B of the case 2 and the drain holes 30A of the mount 3, respectively, as described above.

  Circular screw insertion holes 50D for inserting attachment screws are provided in the four corners of the main piece 50 so as to penetrate in the thickness direction. The screw insertion holes 50D are provided so as to face the screw insertion holes 24D of the case 2 and the screw insertion holes 30C of the mounting base 3 as described above. Further, next to the left and right boss portions 50B of the main piece 50, circular screw insertion holes 50A are provided penetrating in the thickness direction. As described above, each screw insertion hole 50A is provided so as to face the screw insertion hole 30E of the mounting base 3 and the screw insertion hole 40B of the instrument mounting base 4, respectively.

  On the upper surface of the main piece 50, a pair of ribs 56 </ b> A having a rectangular frame shape is integrally formed so as to protrude upward and surround the power line mounting base 53, the electric wire mounting base 54, and the respective cylindrical portions 55. Further, on the upper surface of the main piece 50, three annular ribs 56B that protrude upward and surround each screw insertion hole 50A are integrally formed. Furthermore, a pair of ribs 56C having a rectangular frame shape are integrally formed on the upper surface of the main piece 50 so as to protrude upward and surround the ribs 56A and 56B. For this reason, even if water permeates and accumulates on the upper surface of the main piece 50, it is possible to prevent water from entering into the power line mounting base 53, the electric wire mounting base 54, and the screw insertion hole 50A.

  On the lower surface of the side wall 51, as shown in FIG. 7A, a first peripheral wall 51 </ b> A that protrudes downward so as to cover the outer wall 22 of the flange 21 of the case 2 is integrally formed along the circumferential direction of the main piece 50. Is formed. Between this 1st surrounding wall 51A and the main piece 50, it is the 1st groove part 51B by which the upper end part of the outer wall 22 is fitted. Further, as shown in FIG. 8A, a first protrusion 51 </ b> C protruding downward is integrally formed along the circumferential direction of the main piece 50 at the bottom of the first groove 51 </ b> B. As shown in FIG. 8B, the first protrusion 51C is brought into contact with the upper surface of the outer wall 22 so as to be crushed when the upper end of the outer wall 22 is fitted into the first groove 51B. It has become. For this reason, even if a gap occurs between the first peripheral wall 51A and the outer wall 22 and water enters, the first protrusion 51C can prevent water from entering the inside of the case 2. The first peripheral wall 51A, the first groove 51B, and the first protrusion 51C constitute the “first sealing portion” in the claims.

  Next to each boss portion 50B on the lower surface of the main piece 50, as shown in FIG. 7A, it protrudes downward so as to cover the inner wall 23 of the flange 21 of the case 2 (that is, the inner peripheral edge of the opening of the case 2). A pair of second peripheral walls 57 </ b> A and 57 </ b> B are integrally formed along the circumferential direction of the main piece 50. A space between the second peripheral walls 57A and 57B serves as a second groove portion 57C into which the upper end portion of the inner wall 23 is fitted. Further, as shown in FIG. 8A, a second protrusion 57 </ b> D protruding downward is integrally formed along the circumferential direction of the main piece 50 at the bottom of the second groove 57 </ b> C. As shown in FIG. 8B, the second protrusion 57D comes into contact with the upper surface of the inner wall 23 so as to be crushed when the upper end of the inner wall 23 is fitted into the second groove 57C. It has become. For this reason, even if a gap occurs between the outer second peripheral wall 57A and the inner wall 23 and water enters, the second protrusion 57D can prevent water from entering the inside of the case 2. . In addition, these 2nd surrounding walls 57A and 57B, the 2nd groove part 57C, and the 2nd protrusion 57D comprise the "2nd sealing part" in a claim.

  Here, in the space surrounded by the inner second peripheral wall 57B and the lower surface of the main piece 50, the instrument mounting base 4 is arranged by insert molding. And the outer periphery (namely, side piece 41) of the mounting base 4 for instruments contact | abuts the inner side 2nd surrounding wall 57B on the inner side. For this reason, since the inner second peripheral wall 57B is reinforced by the side piece 41 of the instrument mounting base 4 made of a rigid body, it is possible to prevent the inner second peripheral wall 57B from being bent. Accordingly, it is possible to enhance the effect of preventing water from entering by the inner second peripheral wall 57B.

  As shown in FIG. 7A, a plurality of columnar first protrusions 50 </ b> E are integrally formed on the lower surface of the main piece 50 so as to protrude downward. These first protrusions 50E are provided at regular intervals along the inner peripheral edge of the inner second peripheral wall 57B, and are also provided on the left and right sides of the power supply line mounting base 53 and the electric wire mounting base 54. Yes. A pair of quarter-shaped second protrusions 50F protruding downward are integrally formed on both the left and right sides of the lower surface of the main piece 50 with the air holes 55A interposed therebetween. Also, hemispherical recesses 50G that are recessed upward are provided at the four corners of the portion surrounded by the inner second peripheral wall 57B on the lower surface of the main piece 50, respectively.

  As shown in FIG. 8A, a pair of third peripheral walls 51 </ b> D protruding upward are integrally formed on the upper surface of the side wall 51 along the circumferential direction of the main piece 50. These 3rd surrounding walls 51D contact | abut in the form crushed by the construction surface, when attaching this embodiment to a construction surface. For this reason, a gap can be prevented from being generated between the construction surface and the sealing member 5, and water can be prevented from entering from the outside toward the upper surface of the sealing member 5.

  Hereinafter, the assembly method of this embodiment will be described. The instrument mounting base 4 is assumed to be insert-molded on the sealing member 5 in advance. First, the mounting base 3 is disposed in the recess 52 of the sealing member 5, and the assembly screws 6 are inserted into the respective screw insertion holes 30D, 40B, and 50A and tightened so that the sealing member 5 is sandwiched therebetween. The base 3 and the fixture mounting base 4 are fixed to each other. Next, the lighting fixture 1 is attached to the fixture mounting base 4 using the fixture mounting screw 7 of the fixture mounting base 4. Then, the luminaire 1 is inserted into the body 20 of the case 2 and the sealing member 5 is placed on the flange 21 of the case 2. At this time, the outer wall 22 of the flange 21 is fitted to the first groove 51B of the sealing member 5, and the inner wall 23 is fitted to the second groove 57C. Finally, the present embodiment is fixed to the construction surface by inserting and tightening mounting screws into the screw insertion holes 30C, 24D, and 50D and the screw insertion holes provided on the construction surface.

  As described above, in the present embodiment, the outer wall 22 (outer peripheral edge) of the flange 21 of the case 2 is covered with the first peripheral wall 51A of the first sealing portion. Then, the inner wall 23 (inner peripheral edge of the opening) of the case 2 is further covered with the second peripheral wall 57B of the second sealing portion, thereby preventing water from entering the case 2 from the outside. Accordingly, it is possible to more effectively prevent water from entering the case 2 from the outside. For this reason, when this embodiment is arrange | positioned in the place exposed to wind and rain, such as the outdoors, a sufficient waterproof function can be exhibited not only at the time of light rain but also at the time of heavy rain. In addition, conventionally, in order to improve waterproofness, the filler was filled between the outer peripheral edge of the transparent case and the packing, so-called caulking was performed, but in this embodiment, caulking is unnecessary, Workability at the construction site can be improved. Furthermore, since coking is unnecessary, the cost required for coking can be reduced.

  In the present embodiment, the construction surface is assumed to be a ceiling if indoor, and the eaves is assumed if outdoor, but the present embodiment may be installed using a wall surface as the construction surface.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Case 21 Flange 3 Mounting stand 4 Appliance mounting stand 5 Sealing member 51A 1st surrounding wall 57B 2nd surrounding wall

Claims (6)

  A case that opens on one side and accommodates a lighting fixture inside, a plate-like mounting base on which the back is fixed to the construction surface and the case is fixed so as to close the opening on the front, and a back is the mounting base A plate-shaped fixture mounting base that is fixed to the front surface of the lighting fixture and detachably supported on the front surface, and is interposed between the mounting base and the fixture mounting base. A plate-shaped sealing member attached to cover the opening, the case includes a flange-like flange protruding outward from an outer peripheral edge of the opening, and the sealing member A first sealing portion having a first peripheral wall protruding forward so as to cover the outer peripheral edge of the flange, and a second sealing portion having a second peripheral wall protruding forward so as to cover the inner peripheral edge of the opening of the case. With the sealing part of the front The second wall of the second sealing portion, a waterproof device for a luminaire, wherein the outer peripheral edge of the instrument for mount on the inner side is in contact.   The lighting fixture according to claim 1, wherein the flange of the case is formed with a water receiving portion recessed forwardly between the first sealing portion and the second sealing portion. Waterproof device.   The waterproof device for a lighting apparatus according to claim 2, wherein the water receiving portion is provided with a drain hole for discharging water received by the water receiving portion to the outside of the case.   The waterproof device for a lighting apparatus according to any one of claims 1 to 3, wherein a third peripheral wall protruding toward the construction surface is provided on a back surface of the sealing member.   Each of the first sealing portion and the second sealing portion has a groove portion that is fitted to a facing portion, and at least any of the first sealing portion and the second sealing portion. 5. The waterproof device for a lighting apparatus according to claim 1, wherein a protrusion that protrudes from a bottom portion of the groove portion toward an opposite portion is provided.   The illumination according to any one of claims 1 to 5, wherein the sealing member and the mounting base are each provided with a water drain opening at a portion facing the flange of the case. Waterproof device for instruments.

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