JP2020017501A - Ceiling-mounted luminaire - Google Patents

Abstract

To provide a ceiling-mounted luminaire having a simple structure and high waterproofness.SOLUTION: A ceiling-mounted luminaire 1 is used by being inserted into a ceiling of a bathroom. The ceiling-mounted luminaire 1 includes a case 3 storing a light source 2, an electric wire 10 supplying power to the light source 2, and a cover 9. The case 3 has a third projection 33 projectingly formed upward. The third projection 33 is provided with an opening 38 through which the electric wire 10 is passed. The cover 9 covers the third projection 33, and is formed in a cup-like shape along the lateral face of the third projection 33. The cover 9 is formed as a swollen part 96 in which a part thereof is swollen outward than the other part. The swollen part 96 is positioned with the electric wire 10 in the inside, and guides downward the electric wire 10 along the lateral face of the third projection 33.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a ceiling-mounted lighting fixture.

  There are various types of ceiling-mounted lighting fixtures (for example, Patent Literature 1) fitted into a ceiling, and for example, there is a ceiling-mounted lighting fixture 601 shown in FIG. The ceiling-mounted lighting fixture 601 includes a case 603 arranged behind the ceiling, a socket 608 assembled to the case 603, to which a light source is attached, an electric wire 610 drawn from the socket 608, and a light source arranged indoors. A globe 605 to cover and a linear spring 606 for fixing the globe 605 to the case 603 are provided.

  When the above-described ceiling-mounted lighting fixture 601 is installed in a place with high humidity such as a bathroom, there is a possibility that water droplets dropped from above or water droplets transmitted through the electric wire 610 may enter the socket 608, so that some kind of waterproofing is performed. It is necessary to take measures. For example, a method of closing the water intrusion path using silicone or packing, or a method of arranging the electric wire 610 drawn from the socket 608 so as to have a downward slope can be considered.

JP 2013-73927 A

  However, when a method of closing the water intrusion path by using silicone or packing as the above waterproof measure is used, there is a problem that it leads to a restriction on the structural design. In addition, there is a problem that it is difficult for all workers to thoroughly arrange the electric wires 610 drawn from the socket 608 so as to have a downward slope.

  The present invention has been made in view of the above-described problems, and has as its object to provide a ceiling-mounted lighting device having a simple configuration and high waterproofness.

  The present invention includes a main body that accommodates a light source, and an electric wire that supplies power to the light source, and in a ceiling-mounted lighting fixture that is fitted to a ceiling, the main body is assembled to a case and the case, A socket to which a light source is attached, wherein the main body portion has a convex portion formed to protrude upward, covers the convex portion, and includes a cup-shaped cover along a side surface of the convex portion, A ceiling-mounted lighting device, wherein the cover has a guide portion for positioning the electric wire inside the cover and guiding the electric wire downward along the side surface of the projection.

  According to the present invention, since the cup-shaped cover is provided so as to cover the convex portion and along the side surface of the convex portion, it is possible to prevent water drops falling from above from entering the main body. Further, since the guide portion positions the electric wire inside thereof and guides the electric wire downward along the side surface of the convex portion, it is possible to prevent water droplets from traveling along the electric wire and entering the main body portion. Therefore, it is possible to provide a ceiling-mounted lighting fixture having high waterproofness with a simple configuration.

It is a perspective view of the lighting fixture for ceiling installation concerning a 1st embodiment of the present invention. FIG. 2 is an exploded view of the lighting fixture for ceiling mounting in FIG. 1. FIG. 3 is a sectional perspective view of the case of FIG. 2. FIG. 3 is a perspective view showing a state where an electric wire drawn from a case of FIG. 2 is positioned between a pair of positioning portions. FIG. 5 is a perspective view showing a state where a cover is assembled to the case of FIG. 4. It is a perspective view of the lighting fixture for ceiling installation concerning a 2nd embodiment of the present invention. It is a schematic structure figure of a lighting fixture for ceiling installation concerning a 3rd embodiment of the present invention. It is a bottom view of the cover of FIG. It is a schematic structure figure of a lighting fixture for ceiling installation concerning a 4th embodiment of the present invention. It is a perspective view of the conventional ceiling-mounted lighting fixture.

  A “ceiling-mounted lighting device” according to a first embodiment of the present invention will be described with reference to FIGS. The ceiling-mounted lighting fixture 1 shown in FIG. 1 is used by being fitted into a ceiling of a bathroom. As shown in FIG. 2, the ceiling-mounted lighting fixture 1 includes a light source 2, a socket 8 to which the light source 2 is attached, an electric wire 10 for supplying power to the light source 2, and a case 3 containing the light source 2 and the socket 8. , Packings 11 and 12, a glove 5, a wire spring 6 for fixing the glove 5 to the case 3, a connecting member 7 for connecting the glove 5 and the wire spring 6, and a cover 9. Further, the case 3 and the socket 8 constitute a “main body” described in the claims.

  The socket 8 is formed in a cylindrical shape. As shown in FIG. 2, the electric wire 10 is inserted from above the socket 8, and the light source 2 is inserted from below. As shown in FIG. 3, the socket 3 is accommodated in a third convex portion 33 of the case 3, which will be described later, and is fixed to the case 3 by screws 13.

  Case 3 is made of a synthetic resin. The case 3 includes a disc-shaped base 30, a first protrusion 31 formed to protrude upward from the center of the base 30, and a second protrusion formed to protrude upward from the center of the upper surface of the first protrusion 31. It has a second convex portion 32 and a third convex portion 33 (corresponding to a “convex portion”) formed to protrude upward from the center of the upper surface of the second convex portion 32.

  The first protrusion 31 is formed in a hollow cylindrical shape having a smaller diameter than the base 30. The second convex portion 32 is formed in a hollow cylindrical shape having a smaller diameter than the first convex portion 31. The third convex portion 33 is formed in a hollow cylindrical shape having a smaller diameter than the second convex portion 32. As shown in FIG. 3, the central portion of the base 30, that is, the bottom surface of the first convex portion 31 is open. Similarly, the center of the upper surface of the first protrusion 31, that is, the bottom of the second protrusion 32 is also open. Similarly, the center of the upper surface of the second convex portion 32, that is, the bottom surface of the third convex portion 33 is also open. That is, the inside of the first convex portion 31, the inside of the second convex portion 32, and the inside of the third convex portion communicate with each other.

  The base 30 is placed on the ceiling plate and fixed to the ceiling plate with screws. The annular packing 11 is attached to the upper surface of the base 30. This packing 11 seals between the ceiling plate and the base 30. The annular packing 12 is attached to the lower surface of the base 30. The packing 12 seals between the base 30 and the globe 5.

  The first protrusion 31 is fitted into a hole formed in the ceiling plate. That is, the portion above the base 30 is arranged behind the ceiling. The upper surface of the first convex portion 31 is provided with an insertion hole 36 through which the wire spring 6 passes. In this example, since a pair of wire springs 6 is used, the insertion holes 36 are provided at two places on the upper surface of the first convex portion 31.

  On the upper surface of the second convex portion 32, a locking hole 37 for locking a locking claw 93 of the cover 9 described later is provided. In this example, since four locking claws 93 are provided, the locking holes 37 are provided at four places on the upper surface of the second convex portion 32.

  An opening 38 through which the electric wire 10 passes is provided on the upper surface of the third convex portion 33. On the upper surface of the third convex portion 33, a screw mounting portion 39 into which the screw 13 for fixing the socket 8 is screwed is provided.

  Further, the case 3 has a fourth convex portion 34 and a pair of positioning portions 35 erected from the upper surface of the fourth convex portion 34. The fourth convex portion 34 is formed to be convex from the upper surface of the first convex portion 31 and to be convex from the side surface of the second convex portion 32. The upper surface of the fourth convex portion 34 and the upper surface of the second convex portion 32 are formed flush. The upper surface of the fourth convex portion 34 and the upper surface of the second convex portion 32 are continuous with the lower end of the third convex portion 33 and intersect with the side surface of the third convex portion 33. That is, the upper surface of the fourth convex portion 34 and the upper surface of the second convex portion 32 correspond to the “crossing surface” described in the claims. In this example, the pair of positioning portions 35 are formed in plate shapes facing each other. Between the pair of positioning portions 35, an electric wire 10 and a later-described bulging portion 96 of the cover 9 are positioned.

  The globe 5 covers the light source 2 and diffuses light emitted from the light source 2, and is made of a light-transmitting synthetic resin. The glove 5 is arranged in the bathroom. The glove 5 is fixed to the case 3 as shown in FIG. 1 by a pair of wire springs 6 shown in FIG. 2 being passed through the above-described insertion hole 36 and being hooked on the insertion hole 36.

  The cover 9 covers the third protrusion 33 and guides the electric wire 10 downward along the side surface of the third protrusion 33. The cover 9 is formed in a cup shape from a synthetic resin. The cover 9 includes a top portion 91 having a hemispherical outer shape, a peripheral wall 92 hanging down from the outer edge of the top portion 91 and having a cylindrical shape, and a locking claw 93 hanging down from a lower end of the peripheral wall 92. In this example, four locking claws 93 are provided, and the cover 9 is assembled to the case 3 by locking the locking claws 93 in the locking holes 37 described above.

  The cover 9 has a part formed as a bulging part 96 (corresponding to a “guide part”) bulging outward from other parts. In this example, a bulge 96 is formed from the top 91 to the lower end of the peripheral wall 92. The bulging portion 96 is formed in a groove shape when viewed from the inside of the cover 9. A space for positioning the electric wire 10 is formed between the bulging portion 96 and the side surface of the convex portion 33. The peripheral wall 92 is formed to have a dimension along the side surface of the convex portion 33 except for the bulging portion 96. The bulging portion 96 positions the electric wire 10 inside thereof and guides the electric wire 10 downward along the side surface of the third convex portion 33. As shown in FIG. 5, when the cover 9 is assembled to the case 3, the lower end of the bulging portion 96 is positioned between the pair of positioning portions 35 described above. At the lower end of the bulging portion 96, a notch 97 for drawing out the electric wire 10 in a horizontal direction is provided.

  As shown in FIG. 4, before assembling the cover 9 to the case 3, the electric wires 10 drawn out from the opening 38 are routed downward along the side surface of the third convex portion 33, and the pair of positioning portions 35 If the cover 9 is assembled to the case 3 in this state, the cover 9 can be easily assembled without biting the electric wire 10.

  Since the ceiling-mounted lighting fixture 1 having the above-described configuration includes the cover 9 that covers the third convex portion 33 provided with the opening 38, water drops that have fallen from above enter the case 3 from the opening 38. Can be prevented. Further, since the bulging portion 96 of the cover 9 guides the electric wire 10 pulled out from the opening 38 downward, it is possible to prevent water droplets from traveling along the electric wire 10 and entering the case 3 from the opening 38. As described above, according to the present invention, it is possible to provide the ceiling-mounted lighting fixture 1 having a simple configuration and high waterproofness.

  Further, since the cover 9 has the locking claws 93, the ceiling-mounted lighting fixture 1 does not require screws when assembling the cover 9 to the case 3, and the cover 9 can be easily attached and detached. .

  A “ceiling-mounted lighting device” according to a second embodiment of the present invention will be described with reference to FIG. 6, the same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. The ceiling-mounted lighting fixture 101 shown in FIG. 6 is used by being fitted to the ceiling of a bathroom, as in the first embodiment. This ceiling-mounted lighting fixture 101 has the same configuration as the ceiling-mounted lighting fixture 1 of the first embodiment, except that the case 103 has a positioning wall 40. In FIG. 6, illustration of the globe 5 is omitted.

  The positioning wall 40 is erected from the upper surface (corresponding to the “crossing surface”) of the second convex portion 32 and is formed flush with the side surface of the second convex portion 32. The positioning wall 40 is connected to the pair of positioning portions 35. Such a positioning wall 40 allows another portion of the cover 9 to be positioned between the side surface of the third convex portion 33 and the bulging portion 96 between the side surface of the third convex portion 33 and the bulging portion 96. To be controlled. That is, the distance between the positioning wall 40 and the side surface of the third convex portion 33 is formed smaller than the bulging amount of the bulging portion 96. For this reason, the bulging portion 96 cannot be positioned between the positioning wall 40 and the side surface of the third convex portion 33.

  In the ceiling-mounted lighting fixture 101 having the above configuration, in addition to the operation and effect described in the first embodiment, the positioning wall 40 can prevent the cover 9 from being erroneously assembled.

  A “ceiling-mounted lighting device” according to a third embodiment of the present invention will be described with reference to FIGS. 7 and 8, the same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. The ceiling-mounted lighting fixture 201 shown in FIGS. 7 and 8 is used by being fitted to the ceiling of a bathroom as in the first embodiment. This ceiling-mounted lighting fixture 201 has the same configuration as the ceiling-mounted lighting fixture 1 of the first embodiment, except for the cover 209.

  The cover 209 does not have the bulging portion 96 described in the first embodiment, but instead has a pair of ribs 98 extending along the inner surface of the peripheral wall 92. The pair of ribs 98 are formed from the top 91 to the lower end of the peripheral wall 92. The pair of ribs 98 and the inner surface 92 a of the peripheral wall 92 between the pair of ribs 98 form a space for positioning the electric wire 10. The combination of the pair of ribs 98 and the inner surface 92a of the peripheral wall 92 is referred to as a "guide portion", and is denoted by reference numeral 99. The guide portion 99 positions the electric wire 10 inside thereof and guides the electric wire 10 downward along the side surface of the third convex portion 33.

  As in the first embodiment, the ceiling-mounted lighting device 201 having the above-described configuration includes the cover 209 that covers the third convex portion 33 provided with the opening 38, so that water droplets that have fallen from above are not allowed to pass through the opening. 38 can be prevented from entering the case 3. Further, since the guide portion 99 of the cover 209 guides the electric wire 10 drawn out from the opening 38 downward, it is possible to prevent water droplets from traveling along the electric wire 10 and entering the case 3 from the opening 38. As described above, according to the present invention, it is possible to provide the ceiling-mounted lighting fixture 201 having a simple configuration and high waterproofness.

  A “ceiling-mounted lighting device” according to a fourth embodiment of the present invention will be described with reference to FIG. In FIG. 9, the same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. The ceiling-mounted lighting fixture 301 shown in FIG. 9 is used by being fitted to the ceiling of a bathroom, as in the first embodiment.

  The ceiling-mounted lighting fixture 301 includes a light source 2, a case 303, a socket 308 that is assembled to the case 303, and to which the light source 2 is attached, an electric wire 10 that supplies power to the light source 2, and an unillustrated fixed to the case 303. And a cover 209 and the like. Further, the case 303 and the socket 308 constitute a “main body” described in the claims.

  The socket 308 has a socket body 381 (corresponding to a “projection”) and a fixing portion 383. The fixing part 383 is fixed to the upper surface of the case 303 by the screw 13. In a state where the fixing portion 383 is fixed to the case 303, the socket body 381 projects upward from the upper surface of the case 303. The electric wire 10 is inserted from above the socket body 381, and the light source 2 is inserted from below.

  An opening 342 for passing the light source 2 is provided in the center of the upper surface of the case 303. The light emitting portion of the light source 2 is positioned in the case 303 through the opening 342. The electrical connection of the light source 2 and the socket 308 are located outside the case 303.

  The cover 209 has the same configuration as that described in the third embodiment. In the third embodiment, the cover 209 covers the third protrusion 33, but in this example, the cover 209 covers the socket body 381, and the electric wire 10 is directed downward along the side surface of the socket body 381. To guide.

  Since the ceiling-mounted lighting fixture 301 having the above-described configuration includes the cover 209 that covers the socket body 381, it is possible to prevent water drops falling from above from entering the socket 308. Further, since the guide portion 99 of the cover 209 guides the electric wire 10 pulled out from the socket 308 downward, it is possible to prevent water droplets from traveling along the electric wire 10 and entering the socket 308. As described above, according to the present invention, it is possible to provide a ceiling-mounted lighting fixture 301 having a simple configuration and high waterproofness.

  Note that the above-described embodiment merely shows a typical mode of the present invention, and the present invention is not limited to the embodiment. That is, various modifications can be made without departing from the gist of the present invention.

1, 101, 201, 301 Ceiling-mounted lighting fixture 2 Light source 3, 103, 303 Case 8, 308 Socket 9, 209 Cover 10 Electric wire 33 Third convex part (convex part)
38 opening 96 bulging part (guide part)
99 Guide part 381 Socket body (convex part)

Claims (8)

A lighting device for ceiling mounting, comprising: a main body housing a light source, and an electric wire for supplying power to the light source;
The main body unit includes a case, a socket attached to the case, and the light source is attached,
The main body has a convex portion formed to project upward,
Covering the convex portion, comprising a cup-shaped cover along the side surface of the convex portion,
The lighting device for ceiling mounting, wherein the cover has a guide portion for positioning the electric wire inside the cover and guiding the electric wire downward along the side surface of the convex portion. The ceiling-mounted lighting device according to claim 1, wherein the cover has a locking claw that locks the main body. 3. The cover according to claim 1, wherein a part of the cover is formed as a bulge bulging outward from other parts, and the bulge forms the guide part. 4. Lighting equipment for ceiling mounting. The cover has a peripheral wall and a pair of ribs extending along the inner surface of the peripheral wall, and the inner surface of the peripheral wall and the pair of ribs constitute the guide portion. Item 3. The lighting fixture for ceiling mounting according to item 1 or 2. The lighting device for ceiling mounting according to any one of claims 1 to 4, wherein the case has the convex portion. The lighting fixture for ceiling installation according to any one of claims 1 to 4, wherein the socket has the convex part. The case has the convex portion, a cross surface that is continuous with a lower end of the convex portion, crosses a side surface of the convex portion, and a pair of positioning portions that stand upright from the cross surface,
The ceiling-mounted lighting device according to claim 3, wherein the electric wire and the guide portion are positioned between the pair of positioning portions. The case includes the convex portion, a crossing surface that is continuous with a lower end of the convex portion, crosses a side surface of the convex portion, and a positioning wall that stands upright from the crossing surface,
The positioning wall allows the other portion of the cover to be positioned with the side surface of the convex portion, and regulates the positioning of the guide portion with the side surface of the convex portion. The lighting fixture for ceiling mounting according to claim 3 or 7, wherein the lighting fixture is mounted on a ceiling.

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