JP2006128147A - Lighting fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting fixture which can be made compact by making the lamp image less conspicuous. <P>SOLUTION: The fixture body 21 is installed on the hook ceiling 12 through an adapter 13. The convex of an insertion part 63 of a lamp holder 61 fitted with annular fluorescent lamps 51, 52 is contacted to the recess of the insertion hole 36 and engaged and inserted in the holder fitting part 33 of a reflector 31 from the bottom side, and the locking pawl 66 is locked to the inside of the locking recess 39, and fitted. The reflecting cover 87 is fitted to the center of the fixture body 21 and a shade 46 is fitted to the fixture body 21. The annular fluorescent lamp 51 of large diameter is opposed to the reflecting face portion 35 in outer periphery direction and reflects the light from the annular fluorescent lamp 51 in the outer peripheral direction, and the annular fluorescent lamp 52 of small diameter reflects in the outer peripheral direction at the center reflecting face portion 88 of the reflecting cover 87. Even if the annular fluorescent lamps 51, 52 are made of narrow shape having a large optical output per unit area, the lamp image through the shade 46 can be made small. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a lighting fixture having a fixture main body to which an annular fluorescent lamp is attached.

  Conventionally, this type of lighting fixture is formed, for example, as shown in Japanese Patent Laid-Open No. 8-45334, in which a holder mounting portion is formed on a disk-shaped fixture main body having a reflective surface formed on the lower surface, and a concentric circle is formed on the holder mounting portion. A configuration in which a holder body having a plurality of annular fluorescent lamps attached thereto is known.

On the other hand, in recent years, fluorescent lamps having a reduced arc tube diameter, which have been made thinner and smaller, are becoming popular.
JP-A-8-45334

  However, when an annular fluorescent lamp is mounted as it is in the conventional configuration described in, for example, Japanese Patent Laid-Open No. 8-45334, the annular thin fluorescent lamp has a large light output per unit area. Has an undesirable problem.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting apparatus in which a lamp image is less likely to appear or can be made more compact.

  The lighting fixture according to claim 1 is a fixture main body installed on a fixture mounting surface; a first arc tube having a tube diameter of 15 to 21 mm and an outer diameter of 285 mm to 310 mm; a tube diameter of 15 to 21 mm and an outer diameter of 360 mm to 390 mm. A second arc tube; an outer peripheral reflecting surface portion that reflects the irradiation light from the second arc tube toward the outer peripheral direction; an inner side of the outer peripheral reflecting surface portion; A reflector having a plane reflecting surface portion for reflecting light emitted from one arc tube; and the second arc tube above the first arc tube in a state where the instrument body is installed on the instrument mounting surface. And a holder that is disposed so as to face the outer peripheral reflection surface portion and supports the first arc tube so as to be lower than the flat reflection surface portion. Reflection in the outer peripheral direction For reflecting light from the circular fluorescent lamp in the outer peripheral direction by the part, the light from the circular fluorescent lamp lamp image is hardly appear are dispersed, to improve the uniformity. Further, when the tube diameter is thinner than 15 mm, the intensity of the arc tube is felt to be weak and more care must be taken for handling, which is not practical. When the tube diameter is larger than 18 mm, light control is performed. The design of the reflecting surface becomes difficult, and the arc tube having an outer diameter of 285 mm to 310 mm, or an outer diameter of 360 mm to 390 mm is substantially the same as the tube diameter of the current fluorescent lamp. The feeling of discomfort is reduced and the light emission length is increased, so that the light emission area is increased and a light distribution with a spread is obtained.

  The lighting fixture according to claim 2 is a fixture main body installed on a fixture mounting surface; a first luminous tube having a tube diameter of 15 to 21 mm and an outer diameter of 285 mm to 310 mm; a tube diameter of 15 to 21 mm and an outer diameter of 360 mm to 390 mm. A second arc tube; an outer peripheral reflecting surface portion that reflects light emitted from the second arc tube toward the outer peripheral direction; and an irradiation from the first arc tube that is inside the outer peripheral reflecting surface portion. A reflector having a central reflecting surface part for reflecting light; and in a state where the instrument body is installed on the instrument mounting surface, the second arc tube is located above the first arc tube, and A holder that is disposed so as to face the outer peripheral reflection surface portion and that supports the first arc tube so as to face the central reflection surface portion. Ring shape in the outer circumferential direction by the face part Because the light from the light lamp is reflected, the light from the ring-shaped fluorescent lamp is dispersed and the lamp image is difficult to appear, and even if a ring-shaped fluorescent lamp with a large light output per unit area is used, the ring-shaped fluorescent lamp is formed by the central reflecting surface portion. Therefore, the brightness of the central part of the instrument body is not lowered, and the light from the annular fluorescent lamp is dispersed so that the lamp image hardly appears and the uniformity is improved. Also, if the tube diameter is thinner than 15 mm, the intensity of the arc tube will be weak and care must be taken more than necessary for handling, which is impractical. The design of the surface becomes difficult, and the arc tube with an outer diameter of 285 mm to 310 mm, or an outer diameter of 360 mm to 390 mm is approximately the same as the tube diameter of the current fluorescent lamp. As the light emission length increases, the light emission area increases and a light distribution with a broadening is obtained.

  According to the lighting apparatus of the first aspect, the light from the annular fluorescent lamp is reflected in the outer peripheral direction by the outer peripheral reflection surface portion of the reflector, so that the light from the annular fluorescent lamp is dispersed and the lamp image hardly appears, and it is uniform. Improve the degree. Further, when the tube diameter is thinner than 15 mm, the intensity of the arc tube is felt to be weak and more care must be taken for handling, which is not practical. When the tube diameter is larger than 18 mm, light control is performed. The design of the reflecting surface becomes difficult, and the arc tube having an outer diameter of 285 mm to 310 mm, or an outer diameter of 360 mm to 390 mm is substantially the same as the tube diameter of the current fluorescent lamp. The feeling of discomfort is reduced and the light emission length is increased, so that the light emission area is increased and a light distribution with a spread is obtained.

  According to the lighting fixture of claim 2, since the light from the annular fluorescent lamp is reflected in the outer peripheral direction by the outer peripheral reflection surface portion of the reflector, the light from the annular fluorescent lamp is dispersed and the lamp image is not likely to appear. Even if a ring-shaped fluorescent lamp with a large light output per unit area is used, the light from the ring-shaped fluorescent lamp is reflected by the central reflecting surface, so that the brightness of the central part of the instrument body does not decrease, The light is dispersed and the lamp image is less likely to appear, improving the uniformity. Also, if the tube diameter is thinner than 15 mm, the intensity of the arc tube will be weak and care must be taken more than necessary for handling, which is impractical. The design of the surface becomes difficult, and the arc tube with an outer diameter of 285 mm to 310 mm, or an outer diameter of 360 mm to 390 mm is approximately the same as the tube diameter of the current fluorescent lamp. As the light emission length increases, the light emission area increases and a light distribution with a broadening is obtained.

  Hereinafter, the configuration of an embodiment of a lighting fixture of the present invention will be described with reference to the drawings.

  1 is an exploded perspective view showing a lighting fixture, FIG. 2 is a sectional view showing the lighting fixture, FIG. 3 is a sectional view showing the lighting fixture with the shade and the holder body removed, and FIG. 4 is a perspective view with the shade and the fluorescent lamp removed. FIG. 5 is a front view showing an arrangement state of a circuit board.

  In the figure, an embedded type hook ceiling 12 is installed on a fixture mounting surface 11 such as a ceiling, and an adapter 13 is attached to the lower surface of the hook ceiling 12 by electrical and mechanical connection. A pair of locking claws 14 is provided on both sides of the adapter 13 so that it always protrudes with a built-in spring, and a release button 15 is provided on the bottom surface so that the release button 15 can be pushed into the adapter 13. By doing so, the pair of locking claws 14 are retracted inward. The adapter 13 is provided with a connector 16 via a connection cord 17.

  In addition, 21 is an instrument main body, the instrument main body 21 is formed in a disc shape, and a recess 22 is formed in the central portion, and an opening 23 having a shape allowing the adapter 13 to be inserted into the recess 22 is formed. An elastic member 25 located between the instrument main body 21 and the instrument attachment surface 11 is attached to the upper surface. Furthermore, an adapter receiving member 26 is formed at the lower portion of the opening 23 of the instrument main body 21 so that the locking claws 14 of the adapter 13 are engaged with both ends of the inner wall surface. Further, on the lower surface of the appliance main body 21, a white-coated main body reflection surface portion 27 having a light distribution peak substantially below is formed.

  A reflector 31 made of a flame retardant having a grade of about 5 V is attached to the lower surface of the instrument body 21 with screws 32. The reflector 31 is formed in an annular shape, and a concave groove-shaped holder mounting portion 33 is formed along the radial direction. The lower end portion of the adapter receiving member 26 opens up and down in the center of the holder mounting portion 33. A cylindrical portion 34 is formed to be fitted to the outer periphery, and an outer peripheral reflecting surface portion 35 that reflects toward the outer peripheral direction is formed in a concave curved surface around the reflector 31. That is, the peak of the light distribution of the reflected light from the outer peripheral reflection surface portion 35 is set in the outer peripheral direction.

  Further, an insertion hole 36 is formed on one end side of the holder mounting portion 33, that is, a holding surface 37 is formed on the lower surface side of the insertion hole 36, and along the width direction of the holder mounting portion 33 on the upper surface side. A concave surface 38 is formed in the axial direction. On the other hand, a pair of locking recesses 39 as locking portions are formed on the other end side of the cylindrical portion 34 of the holder mounting portion 33 so as to oppose each other in the width direction. An annular operation recess 40 formed low is formed.

  Further, a connector 41 as an electrical component is disposed on the other end side of the holder mounting portion 33. That is, a substantially C-shaped substrate 42 is disposed inside the instrument main body 21 covered with the reflector 31, and a connector 41, which is a non-heat-generating component, is provided in the vicinity of one end of the substrate 42. Heat generating parts 43, 43 are arranged on both sides via 41, and the heat from the heat generating parts 43, 43 is shielded by the connector 41. The heat generated by these heat generating parts 43, 43 interferes with each other or is necessary due to synergy It is prevented from being heated above. Furthermore, a remote control unit 44 or a mode changeover switch 45 as a remote control unit as an electrical component is attached to a portion where the board 42 is not located in the vicinity of the center part of the instrument body 21. Alternatively, the mode changeover switch 45 is efficiently attached and the weight balance is taken into consideration.

  In addition, a locking body 47 that removably locks the shade 46 to the tool body 21 is attached to a symmetrical position of the peripheral portion of the tool body 21, and a lever 48 is formed integrally with the locking body 47. By pulling the lever 48, the shade 46 can be removed. The shade 46 may have any shape as long as it is molded from a transparent or diffusely permeable material.

  A pull string arm 50 having a pull string insertion hole 49 through which a pull string (not shown) is inserted is attached to the back side of the instrument main body 21 so as to slide and extend.

  Further, 51 and 52 are annular fluorescent lamps, and these annular fluorescent lamps 51 and 52 are so-called T5 having a tube diameter of the arc tube portion 53 of about 16 mm, and emitting light at an outer diameter of 375 mm or 300 mm, for example, 40 W and 32 W, respectively. A lamp pin (not shown) protrudes from a base portion 54 provided at one place of the tube portion 53 in an inward 45 ° direction. By using the thin T5 in this way, the annular fluorescent lamps 51 and 52 do not interfere with each other, so that the annular fluorescent lamps 51 and 52 can be arranged substantially horizontally.

  Reference numeral 61 denotes a lamp holder body. The lamp holder body 61 has a base portion 62 fitted in the center of the holder mounting portion 33, and an insertion portion 63 is formed at one end of the base portion 62. A convex surface 64 is formed on the upper portion of 63 so as to facilitate insertion and is formed with a curved surface substantially the same as the concave surface 38. In addition, at a position corresponding to the position of the locking recess 39 from the other end from the center, an advancing and retracting locking claw 66 as a locking body locked to the locking recess 39 is attached. The pawl 66 is formed integrally with a button 67 for advancing and retracting the locking pawl 66, and the button 67 is positioned in the operation recess 40 when attached and can be easily operated.

  Further, a pair of lamp sockets 71, 71 for connecting the annular fluorescent lamps 51, 52 are provided on the lower surface of the other end of the base portion 62 so as to protrude downward by about 45 ° with respect to the horizontal direction. Each lamp socket 71, 71 is formed with a connection hole (not shown) into which the lamp pins of the annular fluorescent lamps 51, 52 are inserted, and a pin receiving terminal (not shown) is disposed inside the connection hole.

  The lamp socket 71 is formed with a pair of holder portions 72 that are elastically fitted around the base portion 54, and the holder portion 72 has a length that fits more than half of the circumferential surface of the base portion 54. Now, it is formed in an arc shape slightly smaller than the diameter of the base part 54 and has elasticity, and the line connecting the tips thereof is substantially perpendicular to the projecting direction of the lamp socket 71, and the opening part 73 is formed. The lamp pins 71 are provided corresponding to the insertion / removal directions of the lamp pins. The lamp pins project from the upper surface of the lamp holder body 61 and are electrically connected to a plug 74 that is detachably attached to the connector 41.

  A lamp holder 76 that holds the arc tube portion 53 of the annular fluorescent lamps 51 and 52 is attached to the lower surface of one end of the base portion 62. These lamp holders 76 are made of, for example, a transparent transparent resin having elasticity, and are formed with a holder portion 78 that fits and holds from the mounting piece 77 to the inside and the lower portion of the arc tube portion 53. ing.

  Further, an adapter housing portion 81 corresponding to the radial shape of the adapter 13 that avoids interference with the adapter 13 is formed in a concave shape at the upper center of the base portion 62, and the adapter housing portion 81 is slightly lowered downward on the lower surface side. A bridge-shaped portion 82 is formed, and a circular operation hole 83 for operating the release button 15 is formed in the center of the bridge-shaped portion 82.

  The shade 46 is translucent and can surround the entire lower surface of the instrument body 21, and an opening 84 is formed on the upper surface to be attached to the instrument body 21. A horizontal step portion 85 with which the stop body 47 is engaged and disengaged is formed.

  Further, on the lamp holder body 61 in the center of the fixture body 21, a conical reflection cover 87 having a housing portion 86 formed on the upper surface is attached, and the lower surface of the reflection cover 87 reflects toward the outer peripheral direction. A concave central reflecting surface portion 88 is formed. Also in this case, the peak of the light distribution of the reflected light from the central reflecting surface portion 88 is set in the outer peripheral direction.

  A reflection surface 89 is formed by the main body reflection surface portion 27 of the instrument main body 21, the reflector 31, and the central reflection surface portion 88 of the reflection cover 87.

  Furthermore, an arrow 90 is provided on the lower surface of the instrument main body 21 every 90 ° along the center line of the instrument main body 21. For example, the direction of a square-shaped shade such as a planar square shape or a shade-equipped shade is provided. When the shade is attached, by aligning the arrow with the eyes of the cross on the ceiling surface, the shape of the room and the shade can be easily aligned, and the shade is prevented from being bent and attached to the room. The arrow 90 is formed by directly pressing or stamping the instrument body 21, or is attached by a seal or the like.

  The circuit configuration formed on the substrate 42 will be described with reference to FIG.

  FIG. 6 is a circuit diagram showing a circuit configuration, in which a capacitor C1 and a transformer Tr filter are connected to a commercial AC power supply E, and are connected to a capacitor C2 via a jumper wire 91 and a diode D1, and both ends of the diode D1 and the capacitor C2 are connected. Is connected to a series circuit of a capacitor C3 and a diode D2 to form a voltage doubler circuit. Further, an inverter circuit 92 for high-frequency lighting, which is a lighting device, is connected. The inverter circuit 92 has two field effect transistors Q1 and Q2 connected in series, and these field effect transistors Q1 and Q2 are controlled by the drive unit 93. The drive unit 93 is controlled in accordance with control from the remote control unit 44 via the control unit 94. Further, a capacitor C4, a choke coil L1, and an annular fluorescent lamp 51 are connected in series between both terminals of the field effect transistor Q2, and a starting capacitor C5 is connected between both ends of the annular fluorescent lamp 51. The capacitor C6, the choke coil L2, and the annular fluorescent lamp 52 are connected in series, and a starting capacitor C6 is connected between both ends of the annular fluorescent lamp 52.

  Then, the voltage of the commercial AC power source E is rectified by the diode D1 and the diode D2, charged in the capacitor C2 and the capacitor C3, and based on the state set by the remote controller control unit 44, the drive unit 93 via the control unit 94, The field effect transistors Q1 and Q2 are controlled to turn on the ring-shaped fluorescent lamps 51 and 52.

  Note that a mode changeover switch 45 such as a pull switch may be provided instead of the remote control unit 44. In this case, the jumper wire 91 is removed and opened.

  Next, the operation of the above embodiment will be described.

  When attaching the instrument main body 21 to the instrument mounting surface 11, the adapter 13 is attached to the hooking ceiling 12, and the instrument main body 21 is pushed up according to the lower part of the adapter 13, so that the instrument main body 21 is fitted to the outside of the adapter 13, The locking claw 14 protruding from the side surface of the adapter 13 engages with the adapter receiving member 26, and the instrument main body 21 is supported by the adapter 13.

  With the appliance main body 21 attached, power is supplied into the appliance main body 21 via the hook ceiling 12 and the adapter 13.

  Then, the convex surface 64 of the insertion portion 63 of the lamp holder body 61 to which the annular fluorescent lamps 51 and 52 are attached is inserted into contact with the concave surface 38 of the insertion hole 36, and the convex surface 64 of the insertion portion 63 of the lamp holder body 61 and The locking claw 66 is engaged by rotating the lamp holder body 61 while sliding the contact portion of the concave surface 38 of the insertion hole 36 as a substantially fulcrum and fitting and inserting it into the holder mounting portion 33 of the reflector 31 from below. It is locked and attached to the inside of the stop recess 39. At this time, the plug 74 is fitted and inserted into the connector 41 to be electrically connected. A reflective cover 87 is attached to the center of the instrument body 21.

  Furthermore, the shade 46 is attached by the respective locking bodies 47 of the instrument main body 21 by covering and pushing up the shade 46 from below the instrument main body 21.

  The large-diameter annular fluorescent lamp 51 faces the outer peripheral reflection surface portion 35, and the outer peripheral reflection surface portion 35 reflects light from the annular fluorescent lamp 51 in the outer peripheral direction to brighten the outer peripheral direction. The fluorescent lamp 52 is reflected by the central reflecting surface portion 87 of the reflecting cover 87 to mainly brighten the periphery of the center, and even if the annular fluorescent lamps 51 and 52 are thin with a large light output per unit area, the shade The lamp image via 46 can be reduced.

  Also, when replacing the lamp, etc., the locking bodies 47 are unlocked, the shade 46 is removed from the fixture body 21, the reflective cover 87 is removed from the fixture body 21, and both sides of the base 62 of the lamp holder body 61 are removed. Hold the locking claw 66 to release it, move the lamp holder body 61 downward to remove it from the reflector 31, remove the lamp holder body 61 from the insertion hole 36, and remove the lamp holder body 61. . Then, the arc tube portion 53 of the annular fluorescent lamps 51 and 52 is removed from the lamp holder 76 with respect to the detached lamp holder body 61, and then the lamp pin of the base portion 54 is removed from the lamp socket 71. Thereafter, the lamp pins of the cap portions 54 of the new annular fluorescent lamps 51 and 52 are mounted on the lamp socket 71, and then the arc tube portion 53 is mounted on the lamp holder 76, thereby completing the replacement. In this way, after attaching the lamp pin of the base part 54 of the annular fluorescent lamps 51 and 52 to the lamp socket 71, the arc tube part 53 is attached to the lamp holder 76, thereby stressing the lamp pin of the base part 54. The annular fluorescent lamps 51 and 52 can be attached to the lamp holder body 61 without any problem.

  Further, when the annular fluorescent lamps 51 and 52 are turned on, by operating a remote controller (not shown), an infrared signal or the like emitted from the remote controller is received, and the output of the inverter circuit 92 is controlled to turn on and light the light. And set off.

  Next, another embodiment will be described with reference to FIGS.

  FIG. 7 is a cross-sectional view showing a reflector according to another embodiment, FIG. 8 is a side view showing the lamp holder body, and FIG. 9 is a perspective view showing a state where the lamp holder body holds a cord.

  The reflector 101 shown in FIG. 7 has a central reflecting surface portion 102 that reflects toward the outer periphery around the cylindrical portion 34 of the central bridge 82 in the reflector 31 of the embodiment shown in FIGS. The lamp holder body 111 shown in FIG. 8 is formed integrally with the lamp holder body 61 of the embodiment shown in FIGS. A central reflection surface portion 112 having a substantially isosceles triangle shape reflecting toward the center is integrally formed, and the central reflection surface portion 102 and the central reflection surface portion 112 reflect light toward the outer peripheral direction. In addition, a separate reflection cover 87 is not required, the mounting operation is simplified, the size can be reduced, and the number of components is reduced.

  Further, a heat radiating hole 103 is opened in communication with the periphery of the opening 23 at the center of the reflector 101, particularly in the vicinity of the heat generating component 43, facing the adapter 13. When the heat generating component 43 generates heat, heat is radiated through the heat radiating hole 103 and further radiated to the outside through the gap between the reflector 101 and the adapter 13. Further, since the heat radiating hole 103 is formed not on the lower surface of the reflector 101 but on the surface facing the adapter 13, the heat radiating hole 103 is not seen from the lower side so that the aesthetic appearance is not impaired and the area reflected by the reflector 101 is also large. Since it is formed on the side without making it small, the heat dissipation effect is also better than when it is formed on the lower surface.

  Further, a cord pressing portion 114 is formed so as to protrude from the central side surface of the lamp holder body 111, and a hook portion 115 that is bent toward the reflector 101 is formed at the tip of the cord pressing portion 114. Has been. Then, when the lamp holder body 111 is attached to the reflector 101, the cord 17 of the adapter 13 is pressed by the cord pressing portion 114 while being hooked on the hook portion 115 as shown in FIG. Is prevented from being located on the front side of the reflector 101, the light from the annular fluorescent lamps 51 and 52 is prevented from being blocked by the projection of the cord 17, and the code image that is reflected or shadowed by the cord 17 is prevented. Loss and uniform irradiation.

  Another embodiment will be described with reference to FIG.

  FIG. 10 is a cross-sectional view showing a lighting fixture according to another embodiment. The upper portion of the fixture main body 21 is connected to an electrical connection and mechanically suspended cord 121 in place of the adapter 13. A dome 122 is attached to the instrument body 21 on the side, and the cord 121 is held by a locking body 123 attached to an insertion hole (not shown) of the dome 122, and the cord 121 is set to an arbitrary length. Further, a sealing cap 124 connected to the hooking ceiling 12 shown in FIG.

  Further, a shade 125 having an open bottom surface is attached to the instrument body 21. In addition, the shade 125 has an opening 126 formed in the upper part that is slightly smaller than the planar shape of the instrument main body 21, and the periphery of the opening 126 is placed on the instrument main body 21 and attached to the instrument main body 21.

  In addition, since most parts such as the instrument main body 21 shown in FIG. 10 are substantially the same as the parts directly attached to the ceiling shown in FIGS. 1 to 6, by replacing some parts, It can be applied to the direct ceiling type or pendant type without greatly increasing the types of parts.

  Further, FIG. 11 is a cross-sectional view showing the lighting fixture with the holder body of another embodiment removed, and the lighting fixture shown in FIG. 1111 is arranged on the upper surface side of the fixture main body 21 in the lighting fixture shown in FIG. A bulging portion 131 bulging toward the ceiling is formed, the lower surface of the reflector 31 is substantially planar, and the space between the bulging portion 131 of the instrument body 21 and the reflector 31 is increased, and the substrate 42 Can accommodate a normal thickness that can reduce the cost without using a thin one. Further, in order to absorb unevenness on the ceiling surface, the bulging portion 131 and the bulging portion 131 are bulged to such an extent that a gap is generated between the ceilings.

  In addition, by forming the bulging portion 131 on the upper surface side of the instrument body 21 in this way, it is not necessary to increase the thickness seen from the lower surface side, so that it can be kept thin in appearance. Since the reflector 31 has a flat bottom surface, the reflection characteristics do not change significantly compared to the lighting fixture shown in FIG.

  12 is a perspective view showing the drawstring arm device, FIG. 13 is a plan view showing the drawstring arm device with the drawstring arm pulled out, and FIG. 14 shows the drawstring arm device with the drawstring arm stored therein. FIG. 15 is a plan view showing a state where the drawstring arm device is rotated.

  The drawstring arm device 141 has a thin box-shaped holding body 142. The holding body 142 has an opening 143 formed on the upper surface, and insertion holes 144 and 145 are formed at both ends in the longitudinal direction. Yes. Further, locking projections 146 and 146 are formed so as to face each other in the middle in the longitudinal direction on both inner surface sides of the holding body 142, and between the locking projections 146 and 146, there is a gap with respect to the instrument main body 21. A rotating shaft 147 for rotatably mounting the holding body 142 is formed to project.

  On the other hand, an elongated plate-like pull string arm 151 is inserted into the insertion holes 144 and 145 of the holding body 142 so as to be able to advance and retreat, and a pull string insertion hole through which a pull string (not shown) is inserted at the tip of the pull string arm 151. 152 is formed, and a sliding hole 153 through which the rotation shaft 147 is inserted along the longitudinal direction of the pulling string arm 151 is formed on the proximal end side of the pulling string arm 151. The drawstring arm 151 is slidably attached along the longitudinal direction, and wavy engaging recesses 154 and 154 are formed on both sides of the longitudinal direction to be engaged with the engaging protrusions 146 and 146 at a plurality of positions, respectively. ing.

  When the pull string arm 151 is used in the longest state, as shown in FIG. 13, the most proximal portion of the lock recess 154 is locked to the lock protrusion with the pull string arm 151 pulled out most. 146 and the drawstring arm device 141 is positioned along the radial direction of the instrument main body 21.

  Further, when the drawstring arm 151 is used in the shortest state, as shown in FIG. 14, the most distal end portion of the lock recess 154 is locked with the lock projection 146 in the state where the drawstring arm 151 is stored most. The drawstring arm device 141 is positioned in a state along the radial direction of the instrument main body 21.

  Further, when the drawstring arm 151 is accommodated, as shown in FIG. 15, the drawstring arm device 141 is rotated around the rotation shaft 147 in the state where the drawstring arm 151 is most accommodated, and the drawstring arm 151 is retracted. The arm 151 is positioned in a direction crossing the radial direction of the instrument body 21 so that the drawstring arm 151 does not protrude from the instrument body 21.

  Then, by making the drawstring arm device 141 rotatable in this way, for example, a bulge 131 protrudes toward the base end side of the drawstring arm 151, and the drawstring arm 151 slides. Even when a sufficient clearance cannot be secured, the drawstring arm 151 can be stored in a state in which it does not protrude from the instrument body 21. In addition, by making the drawstring arm device 141 rotatable, when the instrument body 21 is rotated with the drawstring arm 151, the drawstring arm 151 is deformed by applying more force to the drawstring arm 151 than necessary. It is possible to prevent the instrument body 21 from being damaged, or to prevent the instrument body 21 from being damaged by forcibly turning the instrument body 21 even though the instrument body 21 does not rotate. Furthermore, since the drawstring arm 151 can be moved back and forth, the amount of protrusion of the drawstring arm 151 can be changed as compared with a case in which the drawstring arm 151 is simply rotatable, and the length of the drawstring arm 151 can be adapted to an arbitrary shade. .

  Further, another embodiment of the drawstring arm device will be described with reference to FIGS. 16 and 17.

FIG. 16 is a perspective view showing a drawstring arm device of another embodiment, and FIG. 17 is a plan view. The drawstring arm device 161 shown in FIGS. 16 and 17 is similar to the drawstring arm device 141 shown in FIGS. 12 to 15 in that the drawstring arm 162 can be moved forward and backward with respect to the base end portion 163 and the base end portion 163. The tip 164 is formed. Then, a sliding hole 153 in the base end portion 163 is formed over substantially the entire length of the pull cord arm 162, and a distal end portion 164 is slidable and rotatable on the distal end side of the sliding hole 153 by a rotating shaft 163. It is attached. In this way, the drawstring arm 162 is divided into the base end portion 163 and the tip end portion 164, and the base end portion 163 is attached to the tip end portion 164 so as to be rotatable and slidable. By stacking and overlapping the portion 163 and the tip portion 164, the drawstring arm 162 can be further shortened and the size can be reduced.

  Furthermore, another embodiment of the drawstring arm device will be described with reference to FIG.

  FIG. 18 is a perspective view showing a drawstring arm device of another embodiment. The drawstring arm device 171 shown in FIG. 18 forms a drawstring insertion hole 173 at the distal end of the drawstring arm 172, and extends along the longitudinal direction in which the proximal end side is opened to the proximal end side of the drawstring insertion hole 173. A long sliding hole 174 is formed, and wavy engaging recesses 175 and 175 are formed opposite to each other on both sides in the longitudinal direction of the sliding hole 174. Then, by engaging the sliding hole 174 with a rotating shaft 176 provided protruding from the instrument body 21, the pulling string arm 172 is rotated around the rotating shaft 176, and the pulling string arm 172 protrudes. The amount can be changed.

  In this way, if the pull string arm 172 and the rotary shaft 176 are formed only, the pull string arm device 171 can be formed with a simple configuration.

  19 is a front view showing the shade attaching device, FIG. 20 is a side view, FIG. 21 is a plan view showing the shade attaching device in a state where the shade is attached, and FIG. 22 is a plan view showing the shade attaching device in a state where the shade is attached. FIG.

  As shown in FIG. 11, a shade 181 as a light control means is attached to the instrument main body 21 by means of a shade attachment device 182 provided at three locations every 120 °. As shown in FIGS. 19 to 22, the shade attaching device 182 includes a support body 183 attached to the instrument body 21 side and a receiver 184 supported by the support body 183 and fixed to the shade 181. Yes.

  First, the support body 183 has a resin base 185. The base 185 has a mounting surface portion 186 and a mounting piece portion 187. The mounting surface portion 186 and the mounting piece portion 187 have screw insertion holes 188, respectively. , 189 are formed, and the screws 190, 191 are inserted into the screw insertion holes 188, 189 and attached to the instrument body 21. Further, a side wall portion 192 and an end wall portion 193 are erected at right angles to the mounting surface portion 186 and the mounting piece portion 187, and reinforcing ribs 194 are formed on the end wall portion 193. Further, a support surface 195 is formed so as to close the tip portions of the side wall portion 192 and the end wall portion 193, and a tapered guide portion 196 is formed on the insertion direction side opposite to the end wall portion 193. The outer peripheral side of the instrument main body 21 and the insertion direction are formed in an open shape, and the opening in the insertion direction is formed on the same direction side as the outer peripheral direction of the instrument main body 21.

  Further, a metal spring body 201 having a spring property is attached to the base 185. The spring body 201 has a clamping part 202 inserted through the screw 191 and sandwiched between the base body 185 and the instrument main body 21, and is bent at a right angle from the clamping part 202 to form a vertical part 203. A support piece 204 is formed on the support surface 195 by bending from the other end side in the opposite direction to the sandwiching portion 202, and a drop prevention pressing portion 205 is formed by cutting and raising the support piece 204. A bent portion 206 is bent at the tip of the pressing portion 205.

  The base 185 is attached with a metal sound member 211 having a spring property that generates a sound by a deformation at the time of insertion / removal and has a click feeling, and the sound member 211 is attached to a mounting piece 187 of the base 185. And a clamping part 212 that is sandwiched between the instrument main bodies 21 and through which the screw 190 is inserted, and a sound output part 213 that is bent from the clamping part 212 and formed in a U-shape is formed.

  On the other hand, the receiver 184 has a resin base 221, the base 221 has a long flat surface portion 222, and a receiving surface portion 223 is parallel to the flat surface portion 222 at the center of the flat surface portion 222. A vertical protrusion 224 is formed so as to protrude perpendicularly to the receiving surface 223, and a locking protrusion 225 to which the pressing portion 205 of the spring body 201 is locked on the lower surface of the receiving surface 223 in the insertion direction. A sound projecting portion 226 that is in contact with the sound producing member 211 is formed on the upper surface on the rear end side of the receiving surface portion 223 in the inserting direction so as to project at a right angle with respect to the inserting direction. Further, the receiving surface portion 223 is formed with an insertion port 227 that is narrow in the vertical direction in a direction orthogonal to the insertion direction.

  In addition, a peripheral wall portion 232 that holds the peripheral wall portion 231 that is formed around the shade 181 is formed. A metal stopper 232 having a spring property is attached to the base 221. The stopper 232 has an insertion portion 234 inserted into the insertion port 227 of the receiving surface portion 223 of the base body 221, and the insertion portion 234 has a cut-and-raised portion 235 that is cut and raised toward the side opposite to the insertion direction. To prevent the stopper 232 from being unnecessarily detached from the base 221. The insertion part 234 is bent at a right angle along the vertical surface part 224 to form a U-shaped clamping part 236 that sandwiches the peripheral wall part 231 of the shade 181, and a tapered part 237 is formed at the tip of the clamping part 236. Is bent.

  Here, the operation of attaching / detaching the shade 181 to / from the instrument body 21 will be described.

  First, when attaching the shade 181 to the instrument body 21, the upper part of the shade 181 that is open is brought into contact with the instrument body 21, and the shade 181 is rotated with respect to the instrument body 21.

  Then, the receiving surface portion 223 of the receiving member 184 is inserted by being guided by the guide portion 196 of the supporting member main body 183, and the receiving surface portion 223 is inserted against the urging force of the pressing portion 205 of the spring body 201. When the locking projection 225 gets over the bent portion 206 at the tip of the pressing portion 205, it is biased upward by the pressing portion 205 and the locking projection 225 is locked by the bending portion 206 and reverses. Prevents the shade 181 from rotating and moving away from the insertion direction, and pressing the shade 181 against the instrument body 21 side. Prevent gaps between them. When the attachment is completed, the receptacle 184 is located on the right side from the state shown in FIG.

  Further, when removing the shade 181 from the instrument body 21, the shade 181 is slightly pressed toward the instrument body 21, and the biasing of the pressing portion 205 of the spring body 201 against the locking projection 225 is weakened, and the shade 181 is inserted. The support 184 is removed from the support body 183 by rotating in the opposite direction.

  In any of the above embodiments, the reflection cover is formed separately from the lamp holder body. However, the same effect can be obtained even if the reflection cover is integrally attached to the lamp holder body, and the attaching / detaching operation is integrated. Can be operated easily.

  Further, the distance between the lamp socket 71 and the lamp holder 76 may be variable. If the distance between the lamp socket 71 and the lamp holder 76 can be changed, the difference in the ring shape according to the description of the ring-shaped fluorescent lamps 51 and 52 is possible. Furthermore, if an interlocking mechanism (not shown) is provided in the lamp socket 71 and the lamp holder 76, and the center of the lamp socket 71 and the lamp holder 76 is always aligned with the center of the fixture body 21, the outer peripheral direction The alignment with the reflecting surface portion 35 and others is ensured, the optical arrangement can be made constant, and the lamp image can be made small reliably.

  In these embodiments, not only so-called T5 having a tube diameter of about 16 mm, but any of T8 having a tube diameter of about 25.4 mm or T10 having a tube diameter of about 32 mm can be used. The outer diameter is 170 mm for 15 W, 205 mm for 20 W, 226 mm for 30 W, 300 mm for 32 W, 375 mm for 40 W, and any combination. Can be used.

  In the above-described embodiment, the lighting fixture has been described with a ceiling direct attachment type and a pendant, but is not limited to a ceiling direct attachment type and a pendant, and can be applied to any other form.

  The annular fluorescent lamps 51 and 52 are coaxially arranged in a substantially planar shape, but may be arranged with portions overlapping in the vertical direction.

  Furthermore, although the electrical connection and the mechanical connection are made together by using the hook sealing 12, the electrical connection and the mechanical connection may be made separately, and the connection form and shape are arbitrary.

  Furthermore, the inverter circuit 92 is a half-bridge type, but any other one-stone type or parallel inverter can be used.

  In addition to or instead of the remote controller 44, a human sensor for detecting the presence or absence of a person or a light sensor for detecting ambient brightness may be provided. By providing a human sensor, it can be turned on when there is a person, turned off when there is no person, can be reliably turned on when necessary, and can also be turned off when not needed. In addition, by providing a light sensor, it can be turned on when the surroundings are dark and turned off when the surroundings are bright so that it can be reliably turned on when necessary, and can be turned off reliably when not needed, thus providing an energy saving effect.

  Further, the lamp socket 71 and the inverter are used in common with a general-type fluorescent lamp having an arc tube with a tube diameter of about 29 mm. In addition, by selecting the inverter circuit 93, a general fluorescent lamp having a tube diameter of approximately 29 mm and a fluorescent lamp having a tube diameter of 15 mm to 21 mm can be used for both parts, and parts can be shared. .

It is a disassembled perspective view which shows one Embodiment of the lighting fixture of this invention. It is sectional drawing which shows a lighting fixture same as the above. It is sectional drawing which shows the lighting fixture of the state which removed the shade and the holder body same as the above. It is a front view which shows the lighting fixture of the state which removed the shade and the fluorescent lamp same as the above. It is a front view which shows the arrangement | positioning state of a circuit board same as the above. It is a circuit diagram which shows a circuit structure same as the above. It is sectional drawing which shows the reflector of other embodiment same as the above. It is a side view which shows a lamp holder body same as the above. It is a perspective view which shows the state which the lamp holder body same as the above is pressing the cord. It is sectional drawing which shows the lighting fixture of other embodiment same as the above. It is sectional drawing which shows the lighting fixture of the state which removed the holder body of other embodiment same as the above. It is a perspective view which shows a drawstring arm apparatus same as the above. It is a top view which shows the drawstring arm apparatus of the state which pulled out the drawstring arm same as the above. It is a top view which shows the drawstring arm apparatus of the state which accommodated the drawstring arm same as the above. It is a top view which shows the state which rotated the drawstring arm apparatus same as the above. It is a perspective view which shows the drawstring arm apparatus of other embodiment same as the above. It is a top view same as the above. It is a perspective view which shows the drawstring arm apparatus of other embodiment same as the above. It is a front view which shows a shade attachment apparatus same as the above. It is a side view same as the above. It is a top view which shows the shade attachment apparatus of the state which attaches a shade same as the above. It is a top view which shows the shade attachment apparatus of the state which attached the above-mentioned shade.

Explanation of symbols

12 ... Catch ceiling
13 ... Adapter
17 ... Code
21 ... Appliance body
23 ・ ・ ・ Opening
33 ... Holder mounting part
35 ... Outer peripheral reflection surface
36 ... insertion hole
39 ... Locking recess as a locking part
41 ... Connector as electrical component
42 ... Board
44 ・ ・ ・ Remote control section as an electrical component
45 ... Mode selector switch as an electrical component
46 ・ ・ ・ Sade
51,52 ... Round fluorescent lamp
61, 111 ... Lamp holder body
63 ... Insertion part
66 ... Locking claw as a locking body
71 ... Lamp socket
76 ... Lamp holder
88 ・ ・ ・ Central reflective surface
89 ・ ・ ・ Reflection surface
103 ... Heat release hole

Claims (2)

An instrument body installed on the instrument mounting surface;
A first arc tube having a tube diameter of 15 to 21 mm and an outer diameter of 285 to 310 mm;
A second arc tube having a tube diameter of 15 to 21 mm and an outer diameter of 360 to 390 mm;
An outer peripheral reflection surface portion that reflects the irradiation light from the second arc tube toward the outer peripheral direction, and an inner side of the outer peripheral reflection surface portion that is formed in a substantially flat plate shape, and the irradiation light from the first arc tube A reflector having a plane reflecting surface portion for reflecting the light;
In a state where the instrument body is installed on the instrument mounting surface, the second arc tube is disposed above the first arc tube and so as to face the outer peripheral reflection surface part, A holder for supporting the first arc tube so as to be lower than the plane reflecting surface portion;
The lighting fixture characterized by comprising. An instrument body installed on the instrument mounting surface;
A first arc tube having a tube diameter of 15 to 21 mm and an outer diameter of 285 to 310 mm;
A second arc tube having a tube diameter of 15 to 21 mm and an outer diameter of 360 to 390 mm;
An outer peripheral reflection surface portion that reflects the irradiation light from the second arc tube toward the outer peripheral direction, and a central reflection surface portion that is inside the outer peripheral reflection surface portion and reflects the irradiation light from the first arc tube; A reflector having
In a state where the instrument body is installed on the instrument mounting surface, the second arc tube is disposed above the first arc tube and so as to face the outer peripheral reflection surface part, A holder for arranging and supporting the first arc tube so as to face the central reflecting surface portion;
The lighting fixture characterized by comprising.

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