JP2013004249A - lighting equipment - Google Patents

Abstract

Provided is a lighting fixture capable of securely mounting a lamp on a main body.
A lighting fixture includes a main body, a lamp, a socket, and a lamp with a cap. The main body 11 is provided with an opening 11a on one end side, and is embedded and installed so that the opening is exposed in the installation target X. The lamp 12 is provided with an irradiation opening 12b1 on one end side, is disposed so that the irradiation opening faces the opening of the main body, and is provided in the main body so as to be rotatable in the vertical direction around a horizontal axis. The socket 13 is disposed in the lamp and is provided with a pair of electrical connection portions 13b facing a position substantially orthogonal to the rotation axis zz of the lamp. The lamp with cap 14 is disposed in the lamp and has a pair of caps 14c connected to each electrical connection portion of the socket.
[Selection] Figure 1

Description

  Embodiments described herein relate generally to a downlight-type lighting fixture embedded in a ceiling or the like of a building.

  In this type of embedded luminaire, a downlight luminaire is commercially available in which a lamp having a light source is rotatably supported with respect to the main body and the irradiation angle of the lamp can be changed. In addition, light emitting diodes (hereinafter referred to as “LEDs”) have been adopted as light sources for general lighting due to their improved luminous efficiency, and various lighting fixtures have been developed. Light-type lighting fixtures have been commercialized.

JP 2009-230916 A JP 2010-129488 A

  In this kind of downlight type lighting fixtures using LED as a light source, further downsizing is required, and in recent years, a flat lamp with a cap using a GX53 type cap standardized by 1EC (International Electrotechnical Commission) is used. By using it as a light source, the size is reduced. However, a lamp with a base using a GX53 type base can be configured to be a flat and small light source, but the base is composed of a pair of pin-shaped bases protruding small on the back side of the lamp body. . For this reason, when the base is mounted on the socket of the lamp, the pair of electrical connections of the socket to which the base is mounted as well as the base are hidden by the lamp body and cannot be seen with the eyes.

  For this reason, the lamp is mounted on the socket with an approximate position determined by intuition. For this reason, there is a concern that the lamp may be mounted in a half-hanging state, and how to ensure that the lamp can be mounted on the main body is an important issue.

  This invention is made | formed in view of the said subject, and it aims at providing the lighting fixture which can mount | wear a main body with a lamp | ramp reliably.

  The lighting fixture of embodiment comprises a main body, a lamp, a socket, and a lamp with a base. The main body is provided with an opening on one end side, and is embedded and installed so that the opening is exposed in the portion to be installed. The lamp is provided with an irradiation opening on one end, and is disposed so that the irradiation opening faces the opening of the main body, and is provided in the main body so as to be rotatable about a horizontal axis in the vertical direction. The socket is disposed in the lamp and is provided with a pair of electrical connection portions facing a position substantially orthogonal to the rotation axis of the lamp. The lamp with the cap has a pair of caps which are disposed in the lamp and connected to each electrical connection portion of the socket.

  ADVANTAGE OF THE INVENTION According to this invention, the lighting fixture which can mount | wear with a lamp | ramp to a main body reliably can be provided.

Sectional drawing which shows the lighting fixture which concerns on embodiment. Similarly, (a) is sectional drawing seen from the right side of FIG. 1, (b) is sectional drawing which expands and shows a rotating shaft. Similarly, it is the bottom view which looked at the lighting fixture from the lower part of Drawing 1, and cuts and shows a part of a main part and a lamp. The lighting fixture is similarly shown, (a) is a perspective view showing the lighting fixture in an exploded manner, and (b) is an enlarged perspective view showing the electrical connection portion. The state which similarly installed the lighting fixture, (a) is sectional drawing which shows the state installed in the horizontal ceiling, (b) is sectional drawing seen from the right side of this (a) figure. The state which installed the lighting fixture similarly is shown, (a) is sectional drawing which shows the state installed in the inclined ceiling, (b) is the rear view which looked at this (a) figure from the arrow A direction. The lighting fixture which provided the fixture on the rotation axis is shown, (a) is sectional drawing which shows the state installed in the inclined ceiling, (b) is the rear view which looked at this (a) figure from the arrow A direction.

  Hereinafter, an embodiment of a lighting apparatus will be described with reference to the drawings. This embodiment is a downlight-type lighting fixture installed on the ceiling of a house or the like, and is a lighting fixture capable of mounting a flat lamp with a base having a GX53-type base using LEDs as a light source body.

  As shown in FIGS. 1 to 4, the luminaire 10 includes a main body 11 that is installed so as to expose the opening 11 a in the installation portion X, a lamp 12 that is rotatably provided in the main body 11, The socket 13 is provided with a lamp 14 with a cap provided in the lamp.

  The main body 11 is made of a metal having thermal conductivity and a predetermined strength. In this embodiment, an aluminum plate having an acrylic baking coating (virgin white) is used, and a circular opening 11a is formed on one end side. The bottom is formed in a substantially cylindrical shape. The opening 11a is exposed facing outward when the main body 11 is embedded and installed in an installation part X such as a ceiling. The inner surface of the cylinder is formed to be a paraboloid so as to function as a reflector. The inner surface may be mirror-finished.

  A top plate 11 b is provided on the bottom surface forming the bottom of the main body 11. The top plate 11b is a metal having a predetermined strength, and in this embodiment, an aluminum plate is used. The top plate 11b is formed in a channel shape by bending both sides in the longitudinal direction to substantially cover the bottom surface of the main body 11, and further to one end portion from the bottom surface. The terminal block attaching part 11b1 is integrally formed by extending (FIG. 2 (a)). The top plate 11b may be integrally formed on the bottom surface of the main body 11.

  The top plate 11 b configured as described above is fixed to the outer surface of the bottom surface of the main body 11 by fixing means such as screws. Thereby, the terminal block attaching part 11b1 which makes the rectangular shape of the top plate 11b is provided so as to protrude from the outer periphery of the main body 11, and the terminal block 15 is provided on the lower surface of the terminal block attaching part 11b1. As shown in FIG. 3, the terminal block 15 is provided approximately on the center line xx of the opening 11 a in the main body 11. The terminal block 15 is a member for connecting a socket 13 and a power line, which will be described later, and supplying power to the lamp 14 with cap. In this embodiment, the terminal block 15 is made of a synthetic resin such as polypropylene, and has a center line xx. Load terminals 15a, 15a and power supply terminals 15b, 15b made of SL terminals (screwless) having electric wire insertion holes on both end surfaces are provided.

  In addition, a decorative frame 11c protruding like a bowl is integrally formed in the circular opening 11a of the main body 11, and a ring-shaped packing 11c1 made of white synthetic rubber is fitted into the inner periphery of the decorative frame. Note that the decorative frame 11c may be formed separately from the main body 11, for example, with a synthetic resin such as PBT, and may be fitted and fixed to the opening outer peripheral surface of the opening 11a.

  In FIG. 1, 11d is a substantially U-shaped chassis made of a metal such as a galvanized steel sheet, and is fitted so as to extend from the bottom surface of the main body 11 to the outer peripheral surface, and is fixed to the bottom surface of the main body 11 by fixing means such as screws. Is done. Two attachments 16 and 16 made of stainless steel leaf springs are detachably provided at both ends of the U-shaped chassis 11d. In this embodiment, it can be attached and detached by inserting and engaging the end portions of the leaf springs of the fixtures 16 with locking grooves (not shown) formed by integrally cutting both ends of the chassis 11d. It is attached to become. In addition, you may attach so that attachment or detachment is possible by fixing means, such as a screw | thread. As shown in FIG. 3, the two fixtures 16, 16 are fixed in a direction yy substantially perpendicular to the center line xx of the opening 11 a of the main body 11.

  As shown in FIG. 4, the lamp 12 is composed of an outer lamp body 12 a and an inner lamp body 12 b. The outer lamp body 12a is a steel plate that has been subjected to acrylic baking coating (virgin white) in the same manner as the main body 11, and is configured to have a bottomed substantially cylindrical shape with a circular opening 12a1 formed on one end side. The outer lamp body 12a has an outer shape that is substantially similar to the inner surface shape of the main body 11, and has a predetermined distance a (FIG. 2 (a)) between the outer lamp body 12a and the outer lamp body 12a. The main body 11 is configured to be rotatable.

  The inner lamp body 12b is a steel plate that has been subjected to acrylic baking coating (virgin white) in the same manner as the outer lamp body 12a, and has a bottomed, substantially cylindrical shape with a circular irradiation opening 12b1 formed on one end side. The irradiation opening 12b1 is exposed facing outward when the main body 11 is embedded and installed in an installation part X such as a ceiling. The inner surface of the cylinder is formed to be a paraboloid so as to function as a reflector. The inner surface may be mirror-finished. Further, the outer shape of the inner lamp body 12b is similar to the inner surface shape of the outer lamp body 12a, and is formed so as to have a predetermined interval b (FIG. 2 (a)) between the inner lamp body 12a and the inner surface of the outer lamp body 12a. And it is comprised so that the nuts 20 and 20 screwed together by the edge part of the rotating shaft 18 mentioned later and an edge part may be accommodated between the outer lamp body 12a and the inner lamp body 12b.

  In addition, a decorative frame 12b2 protruding like a bowl is integrally formed in the circular irradiation opening 12b1 of the inner lamp body 12b. The decorative frame 12b2 may be formed separately from the inner lamp body 12b, for example, with a synthetic resin such as PBT, and fitted and fixed to the outer peripheral surface of the irradiation opening 12b1.

  As shown in FIG. 2 (a), the outer lamp body 12a and the inner lamp body 12b configured as described above have the inner lamp body 12b inserted and fitted into the outer lamp body 12a. The lamp 12 is configured by being closed, and further, the bottomed bottom surfaces are overlapped and fixed by fixing means such as screws.

  The lamp 12 configured as described above is disposed so that the irradiation opening 12b1 of the lamp 12 faces the opening 11a of the main body 11, and is provided in the main body 11 so as to be rotatable in the vertical direction around the horizontal axis. It is done. That is, as shown in FIGS. 2 (a) and 2 (b), axial holes 17 and 17 are formed at positions opposed to each other in the diametrical direction facing the opening 11a side of the inner surface of the main body 11 and the opening 12a1 side of the outer surface of the external lamp body 12a. To do. Rotating shafts 18 and 18 made of bolts are inserted into the shaft holes 17 and 17, respectively, and tightened using spacers 19 and 19 and nuts 20 and 20 to secure a rotational holding force.

  Then, the inner lamp body 12b is inserted and fitted into the outer lamp body 12a rotatably attached to the inner surface of the main body 11 as described above, and the bottom surface is fixed by screws. As a result, the ends of the rotating shafts 18 and 18 are accommodated between the outer lamp body 12a and the inner lamp body 12b, and the ends of the rotating shafts 18 and 18 and the nuts 20 and 20 are covered with the inner lamp body 12b. It is. At this time, the rotary shafts 18 and 18 are positioned so that the center O of the opening 11a of the main body 11, the center of the opening 12a1 of the outer lamp body 12a of the lamp 12, and the center of the irradiation opening 12b1 of the inner lamp body 12b coincide with each other. To fix.

  As a result, the lamp 12 is positioned at a predetermined angle with respect to the inner surface of the main body 11 around the rotation shafts 18 and 18 within a distance a formed between the outer surface of the outer lamp body 12a and the inner surface of the main body 11. In the embodiment, it can be rotated in the vertical direction (in the direction of arrow c in FIG. 1) within an angle range of about 45 °.

  Note that a line (rotation axis) z-z connecting a pair of rotation shafts 18 and 18 provided at positions opposed to each other in the diameter direction is a center line x of the opening 11a of the main body 11 described above, as shown in FIG. It is provided so as to substantially match -x. In other words, the rotation axis zz of the lamp 12 is provided in a direction substantially perpendicular to the line yy connecting the fixtures 16, 16, and the main body 11 is provided with the rotation axis z− of the lamp 12. It installs in the to-be-installed part X with the fixtures 16 and 16 provided facing the y-y direction substantially orthogonal to z.

  As shown in FIG. 4A, the socket 13 includes a socket main body 13a and a pair of electrical connection portions 13b. The socket main body 13a is made of a synthetic resin having electrical insulation, which is a polycarbonate resin in this embodiment. It has a disk shape and is configured in a ring shape in which a fitting hole 13a1 penetrating in the center is formed.

  As shown in FIG. 4B, the electrical connecting portion 13b houses a pair of terminal plates 13b1 to which the pair of GX53-type caps 14c of the lamp with cap 14 are electrically connected, and the terminal plates. A pair of engagement holes 13b2 for mechanically coupling the cap-equipped lamp 14 and the socket body 13a is formed when the base 14c and the terminal plate 13b1 are electrically connected.

  The pair of engagement holes 13b2 includes a locking hole 13b3 formed of an arc-shaped long hole positioned rotationally symmetrical with respect to the center of the socket body 13a, and a circular hole formed continuously at one end of the locking hole. It consists of a dharma hole composed of an insertion hole 13b4 made of The diameter of the insertion hole 13b4 is formed larger than the diameter of the plug portion of the cap 14c, and the width of the long hole of the locking hole 13b3 is formed smaller than the diameter of the plug.

  As a result, the plug portion of the base 14c is inserted from the insertion hole 13b4 and is pivotally moved to the locking hole 13b3 made of a long hole, so that the plug portion comes into contact with the terminal plate 13b1 accommodated in the engagement hole 13b2. Electrical connection is made. At the same time, the plug portion is locked to the back surface side of the locking hole 13b3 to prevent the cap 14c from coming off from the engaging hole 13b2, and is mechanically held.

  The electrical connection portion 13b described above is provided to face the diameter direction of the disk-shaped socket body 13a. Further, a supporting boss portion 13a2 is integrally formed on the back side of the socket body 13a at a position avoiding the pair of electrical connection portions 13b. The socket main body 13a abuts the boss 13a2 on the back side against the inner bottom surface of the inner lamp body 12b of the lamp 12, and is fixed by a fixing means such as a tapping screw, and the socket 13 is disposed in the lamp 12.

  At this time, as shown in FIG. 3, the socket 13 is provided with a pair of electrical connection portions 13 b provided so as to face each other in the diametric direction so as to face each other at a position substantially orthogonal to the rotation axis zz of the lamp 12. It is done. In other words, the pair of electrical connection portions 13b are provided so as to be substantially located on a line yy substantially orthogonal to the center line xx of the opening 11a of the main body 11.

  At the same time, since the terminal block 15 is substantially positioned on the center line xx of the opening 11a of the main body 11, the pair of electrical connection portions 13b are connected to the pair of load terminals 15a of the terminal block 15, as shown in FIG. , 15a are arranged at substantially equal distances on the left and right target positions.

  The electrical connection portions 13b of the socket 13 are connected to the load terminals 15a and 15a of the terminal block 15 arranged as described above by lead wires w1 and w1, and the power supply lines w2 and w2 are connected to the power supply terminals 15b and 15b. Thus, the socket 13 and the commercial power source E are connected. At this time, since the pair of electrical connection portions 13b are disposed at substantially equal distances at the positions of the left and right objects around the pair of load terminals 15a, 15a of the terminal block 15, the lead wires w1, It becomes possible to connect w1 with the shortest distance.

  Further, since the lead wires w1 and w1 are disposed along and close to the rotation axis zz, even when the lamp 12 is rotated in the main body 11, the lead wires w1 and w1 are tensioned. This makes it difficult to prevent disconnection and the like. In other words, in order to allow rotation of the lamp 12, it is not necessary to lengthen the lead wires w1 and w1, which is advantageous in terms of cost.

  As shown in FIG. 4A, the lamp 14 with a base is a circular flat LED lamp having a GX53-type base, and includes a circular lamp body 14a and a circular globe 14b that constitutes a light emitting portion. . The lamp body 14a is made of a metal having good thermal conductivity, in this embodiment, aluminum die-casting, and is provided with a light source body L and a lighting device (not shown) using a solid light emitting element such as a light emitting diode as a light source. Is provided with a pair of caps 14c of GX53 type. The GX53-type cap is made of a conductive metal and includes a pair of pin-shaped cap pins having a cylindrical shaft portion and a disk-shaped plug portion.

  The globe 14b is a translucent or translucent member having translucency, and in the present embodiment, a milky white glass with a curved surface on the front side and a shallow bowl shape around the side surface so as to form a cylindrical shape. It is comprised in the lamp main body 14a so that the light source part L may be covered, and it is comprised so that the glove front surface and side surface periphery may become a light emission part. In FIG. 4A, reference numeral 14a1 denotes a heat radiating fin integrally formed on the outer peripheral surface of the lamp body 14a.

  The lamp 14 with the cap configured as described above is inserted into the lamp 12 from the irradiation opening 12b1 of the lamp 12 that is rotatably provided in the main body 11, and the plug portions of the pair of caps 14c are connected to the pair of electric connection portions 13b. The lamp and the socket are electrically connected and mechanically held by being inserted from the insertion hole 13b4 and pivotally moved to the locking hole 13b3.

  At this time, the cap-equipped lamp 14 using the GX53 type cap is composed of a pair of pin-shaped caps in which the cap 14c protrudes small on the back side of the lamp body, and the dimensions of the cap-attached lamp 14 and the lamp 12 are as follows. In order to reduce the size of the instrument, as shown in FIG. 2 (a), the gap between the cap-mounted lamp 14 and the lamp 12 is made as small as possible. The inner lamp body 12 b is formed to be slightly smaller than the inner diameter dimension thereof, and the height dimension of the lamp with cap 14 is formed to be approximately equal to the depth dimension of the lamp 12. For this reason, when the lamp with cap 14 is mounted in the socket 13, the cap 14c and the electrical connection portion 13b of the socket 13 are also hidden by the lamp body 14a, and cannot be seen with the eyes, and the lamp is mounted in the socket. Is getting harder.

  However, according to the present embodiment, the electrical connection portion 13b of the socket 13 is provided so as to face the position substantially orthogonal to the rotation axis zz of the lamp 12, so that the rotation axis zz is marked. Thus, the base 14c of the lamp with cap 14 can be inserted into the socket 13 in a state of being substantially orthogonal to the rotation axis zz. Thereby, the base 14c can be surely inserted into the insertion hole 13b4 of the socket 13, and further, the base 14c is rotated and locked toward the locking hole 13b3, so that electrical connection and mechanical holding are achieved. Can be reliably performed.

  At the same time, even if the positions of the cap 14c and the insertion hole 13b4 are slightly shifted, the socket 13 swings in the vertical direction about the rotation axis zz with respect to the shift of the lamp 14 with cap. (The insertion hole 13b4 moves). By this swinging, both the base 14c and the insertion hole 13b4 follow and move, and the respective positions can be adjusted, and the base 14c can be reliably inserted into the insertion hole 13b4.

  Incidentally, when the electrical connection portion 13b of the socket 13 is provided so as to face a position substantially coincident with the rotation axis zz of the lamp 12, the electrical connection portion 13b is positioned on the rotation axis zz. For this reason, the socket 13 does not swing. In other words, the base 14c must be inserted into the insertion hole 13b4 whose position is fixed. For this reason, it is necessary to insert the pair of caps 14c so as to be precisely aligned with the rotation axis zz. However, it is actually difficult to insert the correct position.

  Further, when the lamp with cap 14 is inserted with a displacement, the socket 13 follows and swings in accordance with the displacement of the cap 14c (the insertion hole 13b4 on the rotation axis zz moves). Not), the base 14c is separated from the insertion hole 13b4 on the rotation axis zz. For this reason, since the positions of the base 14c and the insertion hole 13b4 are further shifted, the alignment becomes more difficult, and the possibility of a half-hanging state is likely to occur.

  As described above, the downlight-type lighting fixture 10 having the flat lamp 20 with the base having the GX53-type base with the LED as the light source body L is configured.

  The luminaire 10 configured as described above is installed on the installation target, in this embodiment, on the horizontal ceiling X of the house as shown in FIG. First, the power lines w2 and w2 previously wired on the ceiling are connected to the power terminals 15b and 15b of the terminal block 15, respectively. In the ceiling X, an embedded hole H is formed in advance. In this state, the fixtures 16 and 16 made of leaf springs of the main body 11 are bent inward by hand, and the fixtures 16 and 16 are buried while the top plate 11b protruding from the main body 11 is inserted into the embedding hole H. Insert it into the insertion hole H and release your hand.

  Then, the lower surface of the main body 11 is pushed to push the entire device up toward the embedding hole H. As a result, the decorative frame 11c of the main body 11 is positioned in contact with the ceiling surface, and at the same time, the leaf springs of the fixtures 16 and 16 are restored to their original state by their own elasticity and pressed against the inner surface of the embedded hole H. The main body 11 is supported in the embedded hole H by the pressure contact force. The cut end of the embedding hole H is neatly covered by the decorative frame 11c, and the lighting fixture 10 is installed on the ceiling surface.

  Further, as shown in FIG. 5B, the end portions of the rotation shafts 18 and 18 for rotatably providing the lamp 12 with respect to the main body 11 are formed between the outer lamp body 12a and the inner lamp body 12b of the lamp 12. The end portions of the rotary shafts 18 and the nuts 20 and 20 are covered with the inner lamp body 12b. For this reason, even when installed on the ceiling, the appearance is further improved, and it is possible to provide a lighting apparatus with excellent merchantability. In addition, it is possible to hide the deformation of the outer lamp 12a that is likely to occur when the nut is tightened. Furthermore, since the rotating shaft is constituted by bolts, spacers, and nuts, it is possible to secure a sufficient holding force during rotation of the lamp as compared to the rotating shaft using rivets or the like.

  The lamp with cap 14 having the GX53 type cap is attached to the lighting fixture 10 installed as described above. At the time of mounting, as described above, the pair of electrical connecting portions 13b provided facing the diameter direction of the socket 13 is provided facing the position substantially orthogonal to the rotation axis zz of the lamp 12. Therefore, the base 14c of the lamp with cap 14 is inserted into the socket 13 in a state of being substantially orthogonal to the rotational axis zz with the rotational axis zz of the lamp 12 as a mark. Thereby, position alignment with the nozzle | cap | die 14c and the electrical connection part 13b can be performed easily, and the electrical connection and mechanical holding | maintenance of the lamp | ramp 14 with a nozzle | cap | die and the socket 13 can be performed reliably.

  As described above, when the lighting fixture 10 equipped with the cap-mounted lamp 14 is turned on, white light is emitted from the light source body L composed of the LED of the cap-mounted lamp 14, and illumination with light distribution characteristics as a downlight is performed. It can be carried out. Further, as shown in FIG. 5A, by rotating the lamp 12 around a rotation shaft 18 (rotation axis zz), light can be emitted obliquely downward, and a spotlight. It is possible to achieve a typical lighting effect.

  Further, the heat generated from the LED of the lamp 14 with the cap is transmitted to the radiation fins 14a1 of the lamp body 14a and radiated to the outside, and is also transmitted to the socket 13 from the back side of the lamp. The heat transmitted to the socket 13 is further transmitted to the lamp 12 and radiated to the outside. Thereby, the fall of luminous efficiency can be suppressed and it becomes possible to provide the lamp | ramp with a cap with a long lifetime and also a lighting fixture.

  Moreover, since the space | interval a is formed between the outer lamp body 12a of the lamp 12, and the inner surface of the main body 11, it is suppressed that heat is shielded by the air layer of the space | interval a, and is directly transmitted to the top plate 11b. This makes it possible to keep the lamp component temperature within the standard value. In particular, according to the present embodiment, since the main body 11 is made of an aluminum plate having good thermal conductivity, the hot air in the interval a can be transmitted to the main body 11 and can be radiated to the outside more effectively. It is possible to further reduce the temperature of the lamp and the lamp.

  Moreover, the lighting fixture 10 comprised above is installed and used for the ceiling X which inclined such as a house. In this case, as shown in FIG. 6, the lamp 12 is positioned so that the rotation axis zz of the lamp 12 is in the horizontal direction and is inserted into the embedding hole H. Support for X. Then, as shown in FIG. 6A, the lamp 12 is rotated in the vertical direction around the rotation shaft 18 (rotation axis zz), and the lower part of the target room is illuminated brightly from the inclined ceiling. Illumination as a downlight can be performed.

  At this time, as shown in FIG. 6B, the rotation axis zz of the lamp 12 is provided in a direction substantially orthogonal to the line yy connecting the fixtures 16, 16. The fixture 12 is installed in the installation portion X by the fixtures 16 and 16 that are provided so as to face each other in the yy direction substantially orthogonal to the rotation axis zz of the lamp 12. Thereby, as shown to Fig.6 (a), the fixtures 16 and 16 can be located above and below the embedding hole H of the inclined ceiling X, and can support the main body 11. FIG.

  On the other hand, when this type of downlight-type lighting fixture is installed on an inclined ceiling, the fixtures 16 and 16 are orthogonal to the inclination of the inclined ceiling X as shown in FIGS. When the main body 11 is supported by being provided in the space, there is a possibility that a gap t1 is formed in the vertical direction between the mounting surface of the ceiling X and the decorative frame 11c of the main body 11 due to the weight of the appliance.

  However, according to this embodiment, the fixtures 16 and 16 are located above and below the embedding hole H, and can be reliably supported by the fixture 16 located below, and the gap t1 can be eliminated. Accordingly, it is possible to provide a lighting apparatus for installing an inclined ceiling that can securely install the apparatus on an inclined ceiling, is safe and has a good appearance, and can sufficiently exhibit a desired light distribution characteristic. be able to. In particular, according to the present embodiment, the gap t1 can be closed without increasing the number of fixtures 16, and it is possible to provide a lighting apparatus that is advantageous in terms of cost.

  Further, by installing the main body 11 on the inclined ceiling as described above, as shown in FIG. 6 (b), the terminal block 15 is in a position substantially coincided with the rotation axis zz of the lamp 12. Provided. As a result, the load terminals 15a and 15a of the terminal block 15 and the wire insertion openings of the power terminals 15b and 15b are positioned in the horizontal direction, making it difficult for dust and the like to adhere to the wire connection portion, and causing leakage etc. due to moisture and dust. Therefore, it is possible to provide a safe embedded lighting fixture. Incidentally, when the terminal block 15 is positioned orthogonally on the rotation axis zz of the lamp 12, the wire insertion port of the terminal block 15 is located upward as illustrated in FIGS. 7 (a) and 7 (b). The dust is likely to adhere to the wire connection portion.

  As mentioned above, in this embodiment, although the lighting fixture 10 was installed in the ceiling X which is a to-be-installed part, you may install in the wall surface along a wall surface or stairs, a shelf bottom, etc. The lamp with the cap is constituted by a flat lamp having an LED, which is a solid light emitting element, as a light source body, but may be a thin compact fluorescent lamp. The solid-state light-emitting element is preferably composed of, for example, an LED chip made of a gallium nitride (GaN) -based semiconductor that emits blue light. Permissible. Moreover, although it was made to light-emit in white, according to the use of a lighting fixture, you may comprise red, blue, green, etc., and also combining various colors. Further, it may have a light control or color adjustment function.

  The main body 11 is composed of an aluminum plate having good thermal conductivity, but may be composed of aluminum die casting. Or you may comprise by the synthetic resin which consists of PBT resin etc., such as white. In order to use a flat-shaped lamp with a cap as a light source, the external shape is preferably configured so that the plane is a substantially circular cylindrical body, but the plane is a polygonal shape such as a triangle, quadrangle, hexagon, etc. An elliptical shape or the like may be used.

  The socket 13 is made of a synthetic resin, but may be made of a metal having good thermal conductivity, such as aluminum or ceramics, in order to further improve the heat dissipation of the lamp 14 with cap. The external shape is preferably configured so that the flat surface is substantially circular and has a disk shape for mounting a flat lamp with a base, but the flat surface is a polygonal shape such as a triangle, quadrangle, hexagon, etc. An elliptical shape or the like may be used.

  Further, a cover member may be provided in the irradiation opening 12b1 of the lamp 12. The cover member diffuses light emitted from the lamp to prevent glare, and is preferably made of a transparent material having translucency or a translucent member having light diffusibility.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and various design changes can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Lighting fixture 11 Main body 11a Opening 12 Lamp 12b1 Irradiation opening 13 Socket 13b Electrical connection part 14 Lamp with cap 14c Base 15 Terminal block 16 Mounting tool X Installation part z-z Rotation axis

Claims (3)

A main body provided with an opening on one end side and embedded so that the opening is exposed in the portion to be installed;
A lamp provided with an irradiation opening on one end side, disposed so that the irradiation opening faces the opening of the main body, and rotatable in the vertical direction around the horizontal axis in the main body;
A socket provided in the lamp and provided with a pair of electrical connection portions facing a position substantially orthogonal to the rotation axis of the lamp;
A lamp with a base disposed in the lamp and having a pair of bases connected to each electrical connection of the socket;
The lighting fixture characterized by comprising. The lighting device according to claim 1, wherein the main body is installed on the installation portion by a fixture provided so as to be opposed to a direction substantially orthogonal to the rotation axis of the lamp. The lighting device according to claim 1, wherein the main body is provided with a terminal block at a position substantially coincided with the rotation axis of the lamp.