JP4634988B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting apparatus installed on a ceiling surface.

  Conventionally, in order to facilitate work such as lamp replacement, there has been provided a lighting fixture with an electric lifting function capable of adjusting the height of a lighting unit from a distance by operating a remote control unit such as a remote controller (for example, Patent Document 1).

  The lighting fixture of patent document 1 receives the infrared signal output from the fixture attached to the hook ceiling installed in the ceiling surface, the main-body part attached to the lower surface side of the said fixture, and a remote control part. And an illumination unit that has a light receiving unit and is suspended from the main body unit so as to be movable up and down. Here, the fixture includes a pair of locked portions that are locked to a pair of locking portions that protrude from the outer surface of the hook ceiling so as to face each other with the center of the hook ceiling interposed therebetween. ing.

Therefore, in the lighting fixture of Patent Document 1, the fixture includes a first position in which the pair of latched portions of the fixture is latched with the pair of latch portions of the hook ceiling, and a pair of latches of the hook ceiling. The pair of locked parts to be locked to the parts can be exchanged (that is, the fixture is rotated 180 degrees around its center as a rotation center) and can be attached to the hooking ceiling at two attachment positions. It is like that.
JP 2002-109948 A

  In the lighting fixture as described above, when the lighting fixture is installed with the light receiving portion facing in the direction opposite to the direction in which the remote control portion is arranged, the infrared signal of the remote control portion is transmitted to the light receiving portion. Since it becomes difficult to reach (because remote control reachability deteriorates), it is necessary to install the lighting fixture in a state in which the light receiving unit faces the direction in which the remote control unit is arranged.

  However, in the luminaire of Patent Document 1, the attachment position of the fixture to the hook ceiling is two positions, ie, the first position and the second position where the fixture is rotated 180 degrees around the center thereof. In many cases, the portion cannot be directed in the intended direction. In such a case, there has been a problem that the mounting position of the hook ceiling itself has to be adjusted.

  Moreover, in the lighting fixture of patent document 1, since it is difficult to understand the positional relationship between the fixture and the light receiving portion, the direction of the light receiving portion when the main body (and the lighting portion suspended from the main body) is attached to the fixture. Even when the fixture is attached to the hook ceiling, the light receiving part is not located at the expected position when the main unit (and the illumination unit suspended from the main unit) is actually attached to the fixture. In many cases, it was not located.

  In other words, the conventional lighting apparatus has a problem that the operation of positioning the light receiving unit at a position where the infrared signal of the remote control unit is easily received is very complicated and troublesome.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a luminaire that can easily perform the operation of positioning the light receiving unit at a position where the infrared signal of the remote control unit is easily received.

In invention of Claim 1, it has the light fixture which attached the fixture attached to the hook ceiling installed in the ceiling surface, and received the infrared signal output from the remote control part, and was attached to the lower surface side of the said fixture. A pair of main body portions and a lighting portion suspended from the main body portion so as to be movable up and down, and the fixture projects from the outer surface of the hook ceiling so as to be point-symmetric with respect to the center of the hook ceiling. Two pairs of locked portions corresponding to each of the locked portions are provided so that a straight line connecting the pair of locked portions is orthogonal to each other at a midpoint between the pair of locked portions, A pair of attachment parts are provided on the lower surface side of the attachment so as to face each other with the center of the attachment interposed therebetween, and the light receiving part connects the pair of attachment parts. On the straight line or at the center of the fixture Ri said straight line so as to be positioned in an orthogonal line perpendicular to said main body portion the lighting unit and are found provided on the outer surface with any not facing the fitting in, in the light receiving portion, for lifting operation of the lighting unit wherein the and of the operation unit, and a channel setting unit that performs channel setting of the remote control unit for receiving a remote operation has been kicked set.

According to the first aspect of the present invention, the fixture attached to the hooking ceiling installed on the ceiling surface is a pair of locking portions projecting from the outer surface of the hooking ceiling so as to face each other across the center of the hooking ceiling. Since there are two sets of a pair of locked portions that are locked to each other so that a straight line connecting the pair of locked portions is orthogonal to each other at a midpoint between the pair of locked portions. The attachment position of the fixture to the hook ceiling can be selected from four attachment positions rotated by 90 degrees around the center of the attachment, and a straight line connecting a pair of attachment portions provided on the attachment Since the light receiving portion is provided on the main body portion so as to be located on an orthogonal line that passes through the center of the fixture or passes through the center of the fixture, the pair of the pair is not required to be attached to the fixture. By looking at the mounting part You can know the position of the light receiving portion, as a result, an effect that work for positioning the light receiving portion to easily position by receiving the infrared signal of the remote control unit can be easily. In addition, since the light receiving portion is provided on the outer surface of the main body portion that does not face either the fixture or the illumination portion, the light receiving portion is provided on the lower surface of the main body portion. The light receiving unit is not concealed by the illuminating unit, and the infrared signal from the remote control unit can easily reach the light receiving unit.

The invention of billed to claim 1 includes an operation unit for lifting operation of the illumination unit, and a channel setting unit that performs channel setting of the remote control unit for receiving a remote operation, easily receives the infrared signals of the remote control unit As described above, since the light fixture is provided in the light receiving portion arranged on the wide space side not facing the wall surface, there is an effect that the operation portion or the channel setting portion can be easily operated.

  Below, one Embodiment of the lighting fixture of this invention is described with reference to FIGS.

  As shown in FIG. 1, the lighting fixture of the present embodiment includes an attachment 1 attached to a hook ceiling 4 installed on a ceiling surface (not shown), and an infrared ray output from a remote control unit (not shown). The main body part 2 having a light receiving part 23 for receiving a signal and attached to the lower surface side of the fixture 1 and the illumination part 3 suspended from the main body part 2 so as to be movable up and down are provided. A pair of locked portions 10a, 10c and a pair of locked portions 10b, 10d respectively corresponding to the pair of locking portions 41a, 41a protruding so as to be point-symmetric with respect to the center of the hooking ceiling 4 from the outer surface. The straight line M1 connecting the pair of locked portions 10a, 10c and the straight line M2 connecting the pair of locked portions 10b, 10d are between the pair of locked portions 10a, 10c and the pair of locked portions. Fixture which is each midpoint between 10b and 10d A pair of mounting bolts 12 provided on the lower surface side of the fixture 1 so as to be point-symmetric with respect to the center O of the fixture 1 and to which the main body 2 is attached. 12 is provided, and the light receiving portion 23 is provided on the outer surface of the main body portion 2 that does not oppose either the fixture 1 or the illumination portion 3 so as to be positioned on a straight line L connecting the pair of attachment portions 12, 12. ing.

  Here, the remote operation unit is, for example, a remote controller that transmits an infrared signal as a radio signal, and includes a lighting operation switch (not shown) for performing lighting control of the lighting fixture, and the lighting unit 3 of the lighting fixture. A lifting operation switch (not shown) and the like for performing the lifting operation are provided. In addition, a channel (address) is set in the remote operation unit in order to prevent interference, and the channel of the remote operation unit is attached to the infrared signal output from the remote operation unit.

  The hook ceiling (hook ceiling body) 4 includes a circular sealing body 40 as shown in FIG. 1, and the center of the lower surface of the sealing body 40 is located at the center of the sealing body 40 (center of the hooking ceiling 4). A pair of arc-shaped plug blade insertion holes 40a, 40a are provided at symmetrical positions. The plug blade insertion hole 40a is for inserting a hook plug blade of a hook sealing cap (not shown) for mechanical and electrical connection with the hook sealing 4 into the sealing main body 40. A blade receiving portion (not shown) on which the hook blade is hooked is provided in the vicinity of the plug blade insertion hole 40a.

  On the other hand, a terminal portion (not shown) to which a power line (not shown) of an AC power source (not shown) such as a commercial power source is connected is provided on the upper surface side of the sealing body 40 of the hook ceiling 4. The blade receiving part is electrically connected to the terminal part. Therefore, by connecting the hook sealing cap to the hook ceiling 4, power can be supplied from the AC power source to the device including the hook sealing cap.

  The hook ceiling 4 is provided with a disk-shaped mounting bracket 41 for receiving the load of a device attached to the hook ceiling 4 on the upper surface side of the sealing body 40, and the mounting bracket 41 is point-symmetric with respect to the center of the mounting bracket 41. A pair of locking portions 41a and 41a projecting integrally on the outer peripheral edge of the mounting bracket 41 is provided, and a locking screw 5 made of a thumbscrew is screwed into the pair of locking portions 41a and 41a. Screw holes 41b are provided respectively. When the mounting bracket 41 described above is attached to the sealing body 40, the pair of locking portions 41 a and 41 a protrude from the outer peripheral surface of the hooking ceiling 4 so as to be point-symmetric with respect to the center of the hooking ceiling 4. Will be. The hook ceiling 4 as described above is well known in the art and will not be described in detail. Further, the configuration of the hook ceiling 4 is not limited to the above-described one, but has a pair of locking portions protruding from the outer peripheral surface of the hook ceiling so as to face each other across the center of the hook ceiling. I just need it.

  As shown in FIG. 1, the fixture 1 is formed in a disk shape using a metal material or the like, and an accommodation recess 1a for accommodating the hooking ceiling 4 is provided at the center thereof. A circular insertion hole 1b through which the lower end portion of the hooking ceiling 4 is inserted is provided through the bottom surface in the thickness direction. In addition, the fixture 1 includes a pair of locked portions 10a and 10b corresponding to the pair of locking portions 41a and 41a of the hooking ceiling 4 on the peripheral edge of the insertion hole 1b on the bottom surface of the housing recess 1a, and a pair of Locked portions 10c and 10d are provided. Here, each of the locked portions 10a to 10d includes a straight line M1 connecting the pair of locked portions 10a and 10b and a straight line M2 connecting the pair of locked portions 10c and 10d. 10a, 10c and a pair of locked portions 10b, 10d are provided on the fixture 1 so as to be orthogonal to each other at the center O of the fixture 1, which is the midpoint between the pair of locked portions 10b, 10d. Two sets of locking portions are provided such that a straight line connecting the pair of locked portions is orthogonal to each other at a midpoint between the pair of locked portions). That is, the locked portions 10a to 10d are provided at intervals of 90 degrees around the center of the fixture 1 as the rotation center at the opening peripheral edge of the insertion hole 1b on the bottom surface of the housing recess 1a. Note that the fact that the straight line M1 and the straight line M2 are orthogonal does not mean that they are orthogonal in a strict sense, but may be in a range that can be regarded as being approximately orthogonal.

  Each of the locked portions 10a to 10d has the same shape, and has a circular wide hole portion 11a having a size that allows the head 5a of the locking screw 5 to be inserted, and a screw portion of the locking screw 5. It has a dart hole 11 having a shape in which an arcuate narrow hole portion 11b having a size allowing only 5b to be inserted is continuously formed. Accordingly, each of the locked portions 10a to 10d is positioned below the locked portions 10a to 10d through the wide hole portion 11a of the scoop hole 11 through the head 5a of the locking screw 5 screwed to the locking portion 41a. By moving the screw portion 5b of the locking screw 5 to the narrow hole portion 11b side in the state where it is made to move, the lower surface side of the peripheral edge portion of the bobbin hole 11 is locked to the upper surface side of the head portion 5a of the locking screw 5. It has become. In addition, in the example of illustration, although each to-be-latched part 10a-10d is continuously integrated, it may of course be formed separately.

  On the other hand, the fixture 1 is provided with a bolt insertion hole 1 c for the mounting bolt 12 at a position that is point-symmetric with respect to the center O of the fixture 1. Further, in the mounting portion 1, the opening peripheral portion of the bolt insertion hole 1 c has a shape recessed downward so that the head (not shown) of the mounting bolt 12 does not protrude upward from the upper surface of the mounting portion 1. In the present embodiment, the attachment bolt 12 is used as an attachment portion for attaching the main body 2 to the attachment 1. The mounting bolt 12 can be a strax screw or the like.

  The main body 2 includes a circular housing 20 as shown in FIG. A housing recess (not shown) for housing the hooking ceiling 4 and the fixture 1 attached to the hooking ceiling 4 is provided in the central portion on the upper surface side of the housing 20. A hooking sealing cap (not shown) is exposed in the housing recess, and the main body 2 can be supplied with electric power from the AC power source via the hooking ceiling 4. In addition, the housing 20 stores a connection portion (not shown) that electrically connects the hooking ceiling cap and a power line 31 (described later) of the illumination unit 3, and is connected to the illumination unit 3 by the connection unit. Electric power can be supplied.

  Further, a nut recess 20a is formed at a position corresponding to each bolt insertion hole 1c of the fixture 1 on the lower surface side of the housing 20. A through hole (not shown) for a mounting bolt is provided through the casing 20 in the thickness direction on the bottom surface of the nut recess 20a, and the mounting bolt 12 inserted through the through hole has a through hole. The main body 2 can be attached to the lower surface side of the fixture 1 by screwing a nut 21 with a knob at the tip. The depth of the nut recess 20a is set such that the nut 21 screwed to the tip of the mounting bolt 12 does not protrude downward from the lower surface side of the housing 20.

  Furthermore, on the lower surface of the housing 20, wire insertion holes 20b through which free ends (sides that can be freely pulled out from the reel 22) of three wires 22a of a reel 22 with a motor, which will be described later, are inserted, and the illumination unit 3 A power line introduction hole 20 c for introducing the power line 31 into the housing 20 is provided. Here, the wire insertion hole 20 b is provided on the lower surface of the housing 20 so as to be located at each vertex position of an equilateral triangle having the same center position as the housing 20 on the lower surface of the housing 20.

  In addition, a rectangular light receiving portion recess 20d is provided on the outer surface of the housing 20 that does not oppose either the fixture 1 or the illumination portion 3, as shown in FIG. A light receiving portion 23 is provided on the bottom surface. Here, as shown in FIG. 2, the light receiving unit 23 includes a light receiving element 23 a that receives an infrared signal that is exposed from the bottom surface of the light receiving unit recess 20 d and is output from a remote control unit (not shown). .

  In addition, the light receiving unit 23 includes a channel setting composed of an operation unit 23b for raising / lowering operation of the illumination unit 3 composed of an ascending switch 23c and a descending switch 23d, and a changeover switch for setting a channel of a remote operation unit that accepts a remote operation. A portion 23e is provided. The operation unit 23b and the channel setting unit 23e are both exposed on the bottom surface of the light receiving unit recess 20d.

  Further, the light receiving unit 23 includes a cover 23f that is detachably attached to the housing 20 so as to close the opening of the light receiving unit recess 20d. Here, the cover 23f is for concealing the inside of the light receiving portion recess 20d to improve the appearance of the main body 2, and is a resin material having translucency (at least with respect to infrared rays). Etc. are used. The cover 23f is attached to the housing 20 except when the operation unit 23b or the channel setting unit 23e is operated.

  The housing 20 houses the above-described reel 22 with a motor having three wires 22a and a motor (not shown) for winding and rewinding the wires 22a. The free end of 22 a is led out below the housing 20 from a wire insertion hole 20 b provided on the lower surface of the housing 20.

  The casing 20 includes a calculation processing unit (not shown) made of a microcomputer and the like, and a power source that generates drive power for the reel 22 and the calculation processing unit based on the power supplied via the hook ceiling 4. A circuit unit (not shown). Here, the arithmetic processing unit controls an illumination control means (not shown) for controlling a lighting device described later of the illumination unit 3 and the motor of the reel 22 to wind and rewind the wire 22a of the reel 22. Thus, a lifting control means (not shown) for performing the lifting control of the illumination unit 3 is provided.

  The operation processing unit is configured to receive an operation signal included in the infrared signal of the remote operation unit received by the light receiving element 23a of the light receiving unit 23 and an operation signal of the operation unit 23b. Then, the control operation by the illumination control means or the elevation control means is performed according to the contents of the input operation signal. The arithmetic processing unit reads an operation signal from the infrared signal when receiving the infrared signal output from the remote operation unit having a channel that matches the channel set by the channel setting unit 23e (that is, the remote operation unit 3 infrared signals are received). When the lighting control unit controls the lighting device of the lighting unit 3, an illumination control signal is transmitted from the lighting control unit to the lighting device via the power line 31. That is, in the present embodiment, the power line 31 is used as a transmission path for the illumination control signal. Further, a signal line serving as a transmission path for the illumination control signal may be provided separately.

  According to the arithmetic processing unit, lighting / extinguishing / dimming control of the fluorescent lamp of the illuminating unit 3 and lighting / extinguishing of the LED which is a nightlight by operating a lighting operation switch of the remote control unit. / Light control can be performed, and the lighting unit 3 can be lifted / lowered by operating a switch for lifting / lowering operation of the remote control unit. In addition, according to the arithmetic processing unit, the lighting unit 3 can be moved up and down also by operating the ascending switch 23c or the descending switch 23d of the operation unit 23b of the main body unit 2.

  As shown in FIG. 3, the illuminating unit 3 includes, for example, a fluorescent lamp (not shown) such as a ring fluorescent lamp (double ring fluorescent lamp in the illustrated example), an LED (not shown) used as a night light, and the like And a circular dome-like shade 30 that is attached to the lower surface of the chassis and covers the fluorescent lamp attached to the chassis. The shade 30 is formed using, for example, a white resin material having translucency.

  The chassis includes a ballast that generates an operating power for the fluorescent lamp based on the AC power supplied via the hook ceiling 4, a dimming circuit for the fluorescent lamp, and the AC power. The above-described lighting device (not shown) having an AC / DC conversion circuit for generating an operating power supply for the LED, a socket (not shown) for mounting the fluorescent lamp, and a lamp for holding the fluorescent lamp A holder (not shown) and the LED are provided.

  Further, the chassis is provided with a cord reel (not shown) including the power line 31 for supplying power to the lighting device, and is fixed to the power line 31 (fixed to the cord reel). And the free end side of the power supply line 31 (the side that can be freely pulled out from the cord reel) is led out above the chassis.

  Further, the chassis is provided with wire insertion holes (not shown) into which the free ends of the three wires 22a of the reel 22 provided in the main body 2 are inserted, and the chassis on the lower surface side of the chassis. In the vicinity of the wire insertion hole, a bundling portion (not shown) for bundling the free end side of the wire 22a is provided. The wire insertion hole is provided at a position facing the wire insertion hole 20b of the main body 2 in the chassis.

  The illuminating unit 3 described above is moved up and down to the main body unit 2 by inserting the free end side of each wire 22a of the reel 22 of the main body unit 2 into the respective wire insertion holes of the chassis and binding them to the binding unit. Can be hung freely. The illumination unit 3 is electrically connected to the main unit 2 by inserting the free end side of the power line 31 into the housing 20 through the power line introduction hole 20c of the main unit 2 and connecting it to the connection unit. The As described above, the illumination unit 3 is suspended from the main body unit 2 so as to be movable up and down and is electrically connected.

  Below, the installation method to the ceiling surface of the lighting fixture of this embodiment is demonstrated. The operation of attaching the fixture 1 to the hooking ceiling 4 installed on the ceiling surface is performed by the locking screws 5 and 5 screwed from below into the screw holes 41b of the pair of locking portions 41a and 41a of the hooking ceiling 4, respectively. Is engaged with the pair of locked portions 10a, 10c or the pair of locked portions 10b, 10d of the fixture 1.

  At this time, the attachment position of the fixture 1 to the hooking ceiling 4 is the first position where the pair of locked portions 10a, 10c are locked to the pair of locking portions 41a, 41a, and the fixture 1 from the first position. A second position in which the pair of locked portions 41a, 41a is locked with the pair of locked portions 10a, 10c being replaced with the first position by rotating 180 degrees around the center O as a rotation center; A third position where the pair of locked portions 10b, 10d are locked to the portions 41a, 41a, and a pair of the locking portions 41a, 41a by rotating the fixture 1 from the third position 180 degrees around the center O as the rotation center. It is possible to select from four attachment positions including a fourth position where the pair of locked portions 10b, 10d is replaced with the third position and locked. That is, the attachment position of the fixture 1 to the hooking ceiling 4 can be selected from four attachment positions rotated by 90 degrees about the center O of the fixture 1 as a center of rotation, and the fixture 1 is locked at the desired rotation angle. 4 can be attached.

  Moreover, since the light-receiving part 23 is provided in the main-body part 2 so that it may be located on the straight line L which connects between a pair of attachment bolts 12 and 12 of the fixture 1, a pair of attachment bolts 12 of the fixture 1 and By confirming the 12 parallel directions, it is possible to know the direction of the light receiving unit 23 when the lighting fixture is installed. Therefore, when attaching the fixture 1 to the hooking ceiling 4, the attachment work of the fixture 1 to the hooking ceiling 4 is performed such that the direction of the light receiving portion 23 is in a desired direction (or the direction closest to the desired direction). I do.

  After attaching the fixture 1 to the hook ceiling 4 in this way, the hook ceiling cap of the main body 2 is connected to the hook ceiling 4 and the pair of mounting bolts 12, 12 of the fixture 1 are attached to the main body 2. The main body 2 is attached to the fixture 1 by screwing the nuts 21 and 21 to the front ends of the pair of mounting bolts 12 and 12 after being inserted into the respective insertion holes. Will be installed. Since the mounting bolts 12 and 12 are provided so as to be point-symmetric with respect to the center O of the mounting tool 1, there are two mounting positions of the main body 2 to the mounting tool 1. Naturally, the main body 2 is attached to the fixture 1 so that the light receiving portion 23 is in a desired direction. The operation of attaching the illumination unit 3 to the main body 2 may be performed before the main body 2 is attached to the fixture 1 or after the main body 2 is attached to the fixture 1.

  According to the lighting fixture of the present embodiment described above, the fixture 1 attached to the hanging ceiling 4 installed on the ceiling surface is point-symmetric with respect to the center of the hanging ceiling 4 from the outer surface of the hanging ceiling 4. The pair of locked portions 10a and 10c and the pair of locked portions 10b and 10d locked to the pair of locked portions 41a and 41a protruding between the pair of locked portions 10a and 10b, respectively. The fixture 1 in which the straight line M1 to be connected and the straight line M2 to be connected between the pair of locked portions 10b and 10d are the midpoints between the pair of locked portions 10a and 10c and between the pair of locked portions 10b and 10d. Therefore, the attachment position of the fixture 1 to the hooking ceiling 4 is selected from four attachment positions rotated by 90 degrees around the center O of the fixture 1 as the center of rotation. Can and Since the light receiving portion 23 is provided on the main body portion 2 so as to be located on a straight line L connecting the pair of mounting bolts 12, 12 provided on the tool 1, a pair of the main body portion 2 is not attached to the fixture 1. By looking at the mounting bolts 12 and 12, the position of the light receiving unit 23 can be known, and as a result, it is possible to easily perform the operation of positioning the light receiving unit 23 at a position where the infrared signal of the remote control unit is easily received. .

  In addition, since the light receiving unit 23 is provided on the outer surface of the main body 2 that does not face either the fixture 1 or the illumination unit 3, the light receiving unit 23 is illuminated as in the case where the light receiving unit 23 is provided on the lower surface of the main body 2. The light receiving unit 23 is not concealed by the unit 3, and the infrared signal from the remote control unit can easily reach the light receiving unit.

  In addition, the lighting unit 3 has an operation unit 23b for raising / lowering operation and a channel setting unit 23e for setting a channel of a remote operation unit that accepts remote operation, so that the infrared signal of the remote operation unit can be easily received. In the light receiving unit 23 arranged on the wide space side not facing the wall surface, the wall surface or the like becomes an obstacle when installing a stepladder or the like for operating the operation unit 23b or the channel setting unit 23e. The part 23b or the channel setting part 23e is not brought close to the wall surface, and the operation part 23b or the channel setting part 23e is easily operated.

  In addition, when the light receiving unit 23 including the light receiving element 23 a, the operation unit 23 b, and the channel setting unit 23 e is provided on the lower surface facing the illumination unit 3 in the main unit 2, the illumination unit 3 is close to the main unit 2. When it is in the position, it is necessary to insert the hand between the main body 2 and the illumination unit 3 to operate the operation unit 23b or the channel setting unit 23e, and the light receiving unit 23 is difficult to see. It is difficult to operate the unit 23b and the channel setting unit 23e, and when the fluorescent lamp of the illuminating unit 3 is replaced, the illuminating unit 3 hits the light receiving unit 23, and an external force is generated on the light receiving unit 23 to damage the light receiving unit 23. There was a fear.

  On the other hand, in the lighting fixture of the present embodiment, the light receiving unit 23 is provided on the outer surface of the main body unit 2 that does not face either the lighting unit 3 or the fixture 1. Unlike the case where it is provided on the lower surface facing 3, the operation unit 23 b and the channel setting unit 23 e can be easily operated even when the illumination unit 3 is located at a position close to the main body unit 2, and the light receiving unit 23. Thus, there is no effect that the light receiving unit 23 is not damaged and the light receiving unit 23 is not damaged.

  By the way, in the lighting fixture of the structure shown in FIGS. 1-3, the light-receiving part 23 is located on the straight line L which connects between a pair of attachment bolts 12 and 12, and the fixture 1 and the illumination part 3 in the main-body part 2. Although the light receiving portions 23 are provided on the outer surfaces that are not opposed to each other, the light receiving portion 23 is on an orthogonal line N orthogonal to a straight line L passing through the center O of the fixture 1 and connecting the pair of mounting bolts 12 and 12 as shown in FIG. You may provide in the said outer surface of the main-body part 2 so that it may be located. Also in the lighting fixture of the structure shown in FIG. 4, the effect similar to the lighting fixture of the structure shown in FIGS. 1-3 is acquired.

  In the lighting fixture of this embodiment described above, it is located on the straight line L between the pair of mounting bolts 12 and 12 of the fixture 1 or on the orthogonal line N passing through the center O of the fixture 1 and orthogonal to the straight line L. By providing the light receiving part 23 in the main body part 2, the pair of mounting bolts 12 and 12 are used as display means for indicating the position of the light receiving part 23. For example, the display means may be a character or an arrow. A symbol, a combination thereof, or the like may be used. For example, an arrow (not shown) indicating a position where the light receiving unit 23 can be located when the main body 2 is attached to the fixture 1 is indicated on the lower surface of the fixture 1. You may make it provide in the side. In this way, the position of the light receiving part 23 can be known by the arrow as a display means for displaying the position of the light receiving part 23 without attaching the main body part 2 to the fixture 1, and as a result, the light receiving part 23. The lighting fixture can be easily installed in a state in which is placed at a position where the infrared signal of the remote control unit is easily received.

  In addition, the shape and structure of the fixture 1, the main body part 2, and the illumination part 3 are an example to the last, You may deform | transform in the grade which does not deviate from the main point of this invention.

It is a disassembled perspective view of the lighting fixture of one Embodiment of this invention. It is explanatory drawing of the light-receiving part of a lighting fixture same as the above. It is a perspective view of a lighting fixture same as the above. It is the perspective view which abbreviate | omitted some other examples of the lighting fixture same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Attachment 2 Main-body part 3 Illumination part 4 Catch ceiling 10a-10d Locked part 12 Attachment bolt (attachment part)
23 Light-receiving part 23b Operation part 23e Channel setting part 41a Locking part L The straight line which connects between a pair of attachment bolts (The straight line which connects between a pair of attachment parts)
M1, M2 Straight line connecting a pair of locked parts N orthogonal line O Center of the fixture

Claims (1)

A fixture attached to a hook ceiling installed on the ceiling surface, a main body attached to the lower surface side of the fixture having a light receiving portion for receiving an infrared signal output from a remote control portion, and the main body And the fixture corresponds to each of the pair of locking portions protruding so as to be point-symmetrical with respect to the center of the hooking ceiling from the outer surface of the hooking ceiling. A pair of locked portions, wherein two straight lines connecting the pair of locked portions are orthogonal to each other at a midpoint between the pair of locked portions, and the lower surface side of the fixture Is provided with a pair of mounting portions provided so as to be opposed to each other across the center of the mounting tool, and the light receiving unit is on a straight line connecting the pair of mounting portions or of the mounting tool. Perpendicular to the straight line through the center Provided on the outer surface of the main body so as not to face either the illumination unit or the fixture so as to be positioned on an orthogonal line, the light receiving unit includes an operation unit for raising and lowering the illumination unit, and a remote operation And a channel setting unit configured to set a channel of a remote control unit that receives the light .

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