JP2009224158A - Lighting fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting fixture in which design is unified by commonly using a reflecting plate regardless of the number of lamps and which has a shading member that can be attached and detached easily even after installation work. <P>SOLUTION: The lighting fixture is provided with a fixture body 1 to be suitable for a raceway 12 and a power supply unit 2 to be suitable for the fixture body 1, and a reflecting plate which is suitable for the power supply unit 2 and reflects light of the lamp 4. As the power supply unit 2, any of the plurality of kinds of power supply units 2 equipped with lamp sockets 8 of the number of pieces corresponding to the number of lamps 4 is selectively used. Meanwhile, at both end parts in the longitudinal direction of a main piece 3c of the reflecting plate 3, a cut-out portion 3a is respectively installed at the position overlapping with the plurality of arrangement positions of the lamp socket 8 which each power supply unit 2 has, and thereby, even in the case any of power supply unit 2 is selected, the reflecting plate 3 can be fitted. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a lighting fixture.

  Conventionally, various lighting fixtures that are attached to a ceiling surface and illuminate a room or the like have been provided (see, for example, Patent Document 1).

  FIG. 6 shows a one-lamp type lighting fixture provided with one lamp, and one lamp socket 102 to which both ends of a straight tube type lamp 104 are respectively connected to both longitudinal sides of the fixture body 101. A reflector plate 103 is disposed between the instrument body 101 and the lamp 104 to reflect the irradiation light from the lamp 104 downward.

Moreover, the lighting fixture shown in FIG.7 and FIG.8 is also provided as what changed the number of lamps with the same kind of lighting fixture. The lamp fixture shown in FIG. 7 has a lamp socket 202 for two lamps attached to both sides in the longitudinal direction of the fixture main body 201 for two lamps, and irradiates light from the lamp 104 between the fixture main body 201 and the lamp 104. A reflection plate 203 that reflects downward is provided. Moreover, the lighting fixture shown in FIG. 8 has two lamp sockets 102 in the width direction of the fixture main body 101 ′ instead of the single lamp lamp socket 102 with respect to the single-lamp fixture main body 101 ′ shown in FIG. A socket base 301 attached side by side is attached, and a reflector 302 that reflects light emitted from the lamp 104 downward is disposed between the instrument body 101 ′ and the lamp 104.
JP 2003 197023 A (paragraph [0002] -paragraph [0005] and FIGS. 1 and 2)

  The lighting fixture shown in FIG. 6 described above shares the overall shape of the reflector with the lighting fixture shown in FIG. 7 by changing the shape of the notch for allowing the lamp socket to escape. Even if the number of lamps is different, the design can be unified as a whole lighting fixture, but since the dedicated fixture body and reflector are used, the set of fixtures must be replaced when changing the number of lamps. I had to.

  Further, since the distance from the fixture body to the lamp is different from the lighting fixture shown in FIG. 8 and the overall shape of the reflector cannot be made common, the design of the lighting fixture as a whole cannot be unified. Since the fixture body and reflector are used, the set of fixtures had to be changed when changing the number of lamps.

  Furthermore, the lighting fixtures shown in FIGS. 6 to 8 are not configured so that a light-shielding member for changing the light distribution of the lamp can be removed after the construction. In this case, the set of fixtures is replaced according to the light distribution. There was a need to do.

  The present invention has been made in view of the above problems, and its object is to unify the design by sharing a reflector regardless of the number of lamps, and to easily attach and detach after construction. It is providing the lighting fixture provided with the light shielding member which can be performed.

  The invention of claim 1 includes an instrument main body attached to the attached portion, a power supply unit attached to the instrument main body, and a reflector attached to the power supply unit. Any one of a plurality of types of power supply units each having a number of lamp sockets corresponding to the number of lamps is selectively used, and a cutout portion is formed at a position overlapping with a plurality of lamp socket positions of each power supply unit on the reflector. Is provided.

  The invention according to claim 2 is characterized in that a positioning portion for positioning the reflecting plate by contacting the lamp socket is provided in the notch portion.

  According to a third aspect of the present invention, the reflector has a plurality of knockouts at positions overlapping with the plurality of arrangement positions of the lamp sockets, and removes the knockouts corresponding to the positions of the lamp sockets included in the selected power supply unit. Thus, a notch is formed.

  According to a fourth aspect of the present invention, there is provided a light shielding member for shielding light from the lamp, and when the power supply unit to which the lamp and the reflection plate are attached is attached to the instrument main body, the instrument main body, the power supply unit or the reflection plate The light shielding member is provided with attachment means for detachably attaching the light shielding member to any of the above.

  According to the first aspect of the present invention, the lamp socket included in the power supply unit can be escaped through the notch when any of the plurality of types of power supply units is selected. As a result, it is possible to unify the design of the entire lighting fixture even when the number of lamps is different.

  According to the second aspect of the present invention, the lamp socket is brought into contact with the positioning portion provided in the notch, whereby the movement of the reflecting plate with respect to the power supply unit is restricted and the reflecting plate is positioned at a predetermined position. There is an effect that the mounting time to the power supply unit is shortened and the assemblability is improved. Further, since the reflecting plate can be accommodated at a predetermined position by positioning the reflecting plate, incomplete mounting or erroneous mounting of the reflecting plate can be prevented, and safety can be ensured.

  According to the invention of claim 3, the knockout corresponding to the position of the lamp socket included in the selected power supply unit is removed, and unnecessary knockouts can be eliminated by leaving the knockout where there is no lamp socket as it is. Since it can do, there exists an effect that the external appearance of a lighting fixture can be improved.

  According to invention of Claim 4, since a light-shielding member can be detachably attached with respect to the lighting fixture after construction, according to the use condition, a light-shielding member can be easily attached or detached, and it is in a use condition. There is an effect that a matched light distribution can be obtained.

(Embodiment 1)
Embodiment 1 is demonstrated based on FIGS. 1-4. As shown in FIG. 1, the lighting fixture of the present embodiment is selected from any of a plurality of types (three types in the present embodiment) of power supply units 2 including a number of lamp sockets 8 corresponding to the number of lamps 4. It is a lighting fixture used in general, and is used to illuminate a room (for example, a factory) by being attached to a raceway 12 fixed to a building by a bolt 13. In the following description, unless otherwise specified, the direction of the arrow ab in FIG. 1 is the vertical direction, and the direction of the arrow cd is the horizontal direction.

  The lighting fixture includes a fixture main body 1 provided with attachment pieces 5 for attachment to the raceway 12 at both ends in the left-right direction, a power supply unit 2 attached to the fixture main body 1, a straight tube lamp 4, and a lamp 4 And a reflection plate 3 for reflecting the irradiation light from.

  As shown in FIG. 1, the raceway 12 has a long shape extending in the left-right direction and is formed in a substantially U-shape in sectional view with an opening on the lower side, and bends the end portions on both sides in the width direction inwardly. Thus, the groove 12a is formed over the entire length. The raceway 12 is attached to a ceiling surface (not shown) using bolts 13. Here, a mounted portion is constituted by the raceway 12.

  As shown in FIG. 1, the instrument body 1 has a case body 1a formed in an elongated, substantially rectangular box shape that extends in the left-right direction and has an open bottom surface. A substantially rectangular wire insertion hole 1b for allowing the cable 14 wired from the ceiling surface to pass therethrough is provided in the (opposite part). Further, projecting base portions 6 projecting downward are provided near both ends of the case body 1a in the left-right direction, and screw holes 6a into which fixing screws 18 are screwed are provided on the bottom surfaces of the respective projecting base portions 6. ing. Further, attachment pieces 5 bent in a U-shape are extended in the left-right direction at both left and right ends of the case body 1a, and fixing screws for attaching to the raceway 12 are attached to the attachment pieces 5, respectively. A screw insertion hole 5a through which 15 is inserted is provided.

  As shown in FIG. 1, the power supply unit 2 has a case main body 2a formed by bending down four sides of a main piece of an elongated substantially rectangular plate extending in the left-right direction. A screw insertion hole 2b is provided through a portion corresponding to the hole 6a. A projecting base portion 9 projecting downward is provided inside each screw insertion hole 2b, and a screw hole 9a into which a fixing screw 19 is screwed is provided on the bottom surface of each projecting base portion 9. Further, a terminal block 10 to which each electric wire of the cable 14 is connected is housed in a portion corresponding to the wire insertion hole 1b in the case body 2a, and further, lighting power is supplied to the lamp 4 on the right side of the terminal block 10. A ballast 11 is stored. In addition, the terminal block 10 is arrange | positioned so that an electric wire connection surface may face the said electric wire insertion hole 1b, and the cable 14 can be connected now from the upper side through the electric wire insertion hole 1b. Further, in the power supply unit 2 for three lamps in FIG. 1, two ballasts 11 are accommodated so that lighting power can be supplied to the three lamps 4. Further, the output end of the terminal block 10 and the input end of the ballast 11 are electrically connected via an electric wire (not shown), and commercial power supplied via the cable 14 is supplied from the terminal block 10 to the ballast 11. To be supplied.

  Here, the lighting fixture of the present embodiment is configured to be compatible with lamps 1 to 3 as shown in FIG. 1, and is provided at both left and right ends of the case body 2 a of the power supply unit 2. One of a plurality of types (three types in this embodiment) of socket bases 7 to which the number of lamp sockets 8 corresponding to the number of lamps 4 is attached is attached. That is, the power supply unit 2 is provided with a plurality of types (three types in this embodiment) having different socket bases 7 according to the number of lamps. The socket base 7 is formed in a substantially rectangular box shape as shown in FIG. 1, and extends in the width direction of the case body 2a in accordance with the number of lamp sockets 8 to be attached. That is, when the lamp 4 is a plurality of lamps, the lamp sockets 8 are arranged side by side in the width direction of the case body 2a. Note that the corresponding lamp socket 8 (the lamp socket to which the same lamp 4 is mounted) is attached to the socket base 7 with the connection surfaces 8a of the lamps 4 facing each other.

  As shown in FIG. 1, the reflecting plate 3 has a substantially rectangular plate-shaped main piece 3c extending in the left-right direction, and inclined surfaces 3d inclined obliquely downward are folded at both ends in the width direction of the main piece 3c. A song is formed. In the vicinity of the bent portion between the main piece 3c and each inclined surface 3d, a plurality of substantially rectangular exposure holes 3j are provided on the main piece 3c side along the left-right direction, and further on each inclined surface 3d side. Similarly, a plurality of substantially rectangular exposure holes 3k are provided along the left-right direction. In addition, the screw insertion hole 3b is penetrated by the site | part corresponding to the said screw hole 9a in the main piece 3c.

  Here, on both sides in the left-right direction of the main piece 3c of the reflection plate 3, lamps provided by the three types of power supply units 2 in a state where the reflection plate 3 is attached to the power supply unit 2 as shown in FIGS. Cutout portions 3a are respectively provided at positions overlapping with all the positions where the sockets 8 are arranged. Further, a plurality of (two in the present embodiment) positioning projections 3e projecting in the left-right direction are provided between the positions where the lamp sockets 8 are arranged in the respective notches 3a. The protrusion length d of each positioning protrusion 3e is preferably about 5 mm so that the lamp socket 8 can be positioned reliably while preventing deformation.

  Here, when the power supply unit 2 has one lamp socket 8, as shown in FIG. 2A, the lamp socket 8 is arranged at the central arrangement position of the notch portion 3a and both sides in the width direction. As a result, the movement of the reflector 3 relative to the power supply unit 2 is relatively restricted, and the reflector 3 is positioned at a predetermined position. Further, when the power supply unit 2 has two lamp sockets 8, as shown in FIG. 2B, one lamp socket 8 is disposed at the upper position of the notch 3 a and the other lamp socket 8 is disposed. The lamp sockets 8 are respectively positioned at the lower positions, and the lamp sockets 8 are positioned in the width direction by the inner edges in the width direction of the positioning protrusions 3e and the notches 3a. Is done. Further, when the lamp socket 8 provided in the power supply unit 2 is three, the lamp sockets 8 are respectively arranged at the upper, middle, and lower positions of the notch 3a as shown in FIG. 2 (c). In addition, the positioning projection 3e or the notch 3a is positioned in the width direction by the inner edge in the width direction, and the reflector 3 is similarly positioned with respect to the power supply unit 2. Thus, each of the lamp sockets 8 is brought into contact with the inner edge in the width direction of the positioning projection 3e or the notch 3a, and the reflecting plate 3 is relatively positioned with respect to the feeding unit 2, thereby making the reflecting plate 3 the feeding unit. The attachment time when attaching to 2 can be shortened, and assemblability is improved. Moreover, since the reflecting plate 3 can be accommodated in a predetermined position by positioning the reflecting plate 3, incomplete mounting or erroneous mounting of the reflecting plate 3 can be prevented, and safety can be ensured. Here, the positioning portion is constituted by the positioning projection 3e and the inner edge in the width direction of the notch portion 3a.

  As shown in FIG. 1, the lamp 4 has a straight tube-like arc tube 4a extending in the left-right direction, and a cap portion 4b having a pair of lamp pins 4c projecting from both ends in the left-right direction of the arc tube 4a. Is provided.

  Next, the assembly procedure of the lighting fixture of this embodiment is demonstrated based on FIG. In addition, the terminal block 10 and the ballast 11 are demonstrated as what is previously attached to the case main body 2a. First, the case main body 1a of the instrument main body 1 and the case main body 2a of the power supply unit 2 (which can be used for one lamp, second class, or three lamps) are aligned, and each fixing screw 18 is a corresponding screw. The case body 2a is assembled to the case body 1a by being inserted into the insertion hole 2b and screwed into the screw hole 6a. Thereafter, after the reflector 3 is arranged at a predetermined position so that the lamp socket 8 of the power supply unit 2 used is arranged at the arrangement position of the notch 3a, each fixing screw 19 is inserted into the corresponding screw insertion hole 3b. The reflector 3 is assembled to the case main body 2a by being screwed into the screw hole 9a. Finally, when each cap portion 4b is attached to the corresponding lamp socket 8 and the lamp 4 is attached to the case body 2a, the assembly of the lighting fixture is completed.

  Here, the case main body 1a, the case main body 2a, and the reflector 3 are formed to have substantially the same length, and in a state where the lighting fixture is assembled, each mounting piece 5 is located on the outermost side, and after the lighting fixture is assembled, It can be attached to the raceway 12.

  Next, a procedure for attaching the lighting fixture to the raceway 12 will be described with reference to FIG. First, after each electric wire of the cable 14 is connected to the terminal block 10 through the electric wire insertion hole 1b, the screw portion 15a of each fixing screw 15 held by the raceway 12 is inserted into the screw insertion hole 5a of the corresponding mounting piece 5. When a washer (not shown) is inserted into the screw portion 15a from the lower side and a wing nut (not shown) is screwed, the lighting fixture is fixed to the raceway 12.

  Here, in the lighting fixture of this embodiment, the light shielding member 20 for changing the light distribution of the light from the lamp 4 can be detachably attached to the reflector 3 in a state where the lighting fixture is attached to the raceway 12. Yes. This light shielding member 20 is made of a metal material having a light shielding property, and has an elongated rectangular plate-shaped attachment piece 20a extending in the left-right direction as shown in FIGS. 3 and 4, and on one end side in the width direction of the attachment piece 20a. Is inclined obliquely downward and is provided integrally with a substantially letter-shaped light-shielding piece 20b whose front end extends vertically downward. In addition, the mounting piece 20a is provided with a screw hole 20c (mounting means) into which a fixing screw 21 for fixing the light shielding member 20 to the reflecting plate 3 is screwed. The light shielding member 20 is attached to the reflecting plate 3 by being inserted into a screw insertion hole (not shown) and screwed into the screw hole 20c.

  Here, in a state where the light shielding member 20 is not attached, as shown in FIG. 4A, the exposure hole 3j provided in the main piece 3c of the reflector 3 or the exposure hole 3k provided in the inclined surface 3d and the inclined surface 3d. The light from the lamp 4 is irradiated to the outside from the side, but when the light shielding member 20 is attached to the reflection plate 3, as shown in FIG. 4B, the light from the exposure holes 3j and 3k. While the light is blocked, a part of the light from the side of the inclined surface 3d is also blocked by the light shielding piece 20b. That is, by using the light blocking member 20, the light distribution from the lamp 4 can be changed.

  Thus, in the lighting fixture of the present embodiment, the lamp socket 8 included in the power supply unit 2 is allowed to escape through the notch 3a regardless of which of the multiple types (three types in the present embodiment) of the power supply unit 2 is selected. Therefore, the reflector 3 can be shared regardless of the selected power supply unit 2, and as a result, the design of the entire lighting fixture can be unified even when the number of lamps 4 is different. Moreover, since the light shielding member 20 can be detachably attached to the lighting fixture after construction (after being attached to the raceway 12), the light shielding member 20 can be easily attached and detached according to the state of use, and A light distribution suitable for the state of use can be obtained.

  In the present embodiment, the case where the light shielding member 20 is detachably attached to the reflecting plate 3 has been described as an example. However, for example, the light shielding member 20 may be detachably attached to the instrument main body 1 or the power supply unit 2.

(Embodiment 2)
A second embodiment will be described with reference to FIG. In the first embodiment, the case where the cutout portion 3a is provided in the main piece 3c of the reflecting plate 3 at a position overlapping with the position where the lamp socket 8 is disposed has been described as an example. A plurality of (three in this embodiment) knockouts 3f are provided at the overlapping positions, and only the necessary knockouts 3f are cut out according to the selected power supply unit 2 to form the notches 3g. Is the same as that of the first embodiment, and the same components are denoted by the same reference numerals and description thereof is omitted.

  In the reflecting plate 3 of the present embodiment, a plurality of (three in this embodiment) knockouts 3f are provided along the width direction at positions where the lamp sockets 8 are disposed at both ends in the left-right direction of the main piece 3c. Only the knockout 3f corresponding to the selected power supply unit 2 is cut out to form a notch 3g. That is, in the case where the power supply unit 2 has one lamp socket 8, only the knockout 3f at the center position is cut out to form a notch 3g as shown in FIG. A lamp socket 8 is arranged at 3 g. When the power supply unit 2 has two lamp sockets 8, as shown in FIG. 5 (b), the upper and lower knockouts 3f are cut out to form notches 3g, and each lamp socket 8 are arranged in the corresponding notch 3g. Further, when the lamp socket 8 provided in the power supply unit 2 is three, as shown in FIG. 5C, the knockout 3f at each of the upper, middle, and lower positions is cut out to form a notch 3g. Each lamp socket 8 is arranged in a corresponding notch 3g. In the reflector 3 of the present embodiment, a positioning part is constituted by the peripheral part of the notch part 3g after the knockout 3f is cut off, and the lamp socket 8 is connected to the positioning part regardless of which feeding unit 2 is selected. By positioning the reflector 3 relative to the power supply unit 2 in contact with each other, the mounting time when the reflector 3 is attached to the power supply unit 2 can be shortened, and assemblability is improved.

  In the lighting fixture of the present embodiment, the corresponding knockout 3f is cut out in accordance with the position of the lamp socket 8 included in the power supply unit 2 to form the cutout portion 3g, whereby the number of lamp sockets 8 included in the power supply unit 2 is increased. Regardless of this, the reflector 3 can be shared (regardless of the number of lamps 4), so that the design can be unified for the entire lighting fixture, and the knockout 3f where there is no lamp socket 8 is left as it is. Since the notch can be eliminated, the appearance of the lighting apparatus can be improved.

  In the first and second embodiments, the wire insertion hole 1b is formed in a substantially rectangular shape, but the shape of the wire insertion hole is not limited to this embodiment, and may be a shape other than the rectangular shape. Good.

It is the schematic which shows the whole structure of the lighting fixture of Embodiment 1. FIG. The principal part of the reflecting plate used for the above is shown, (a) is a front view in the case of 1 lamp, (b) is in the case of 2 lights, (c) is a front view in the case of 3 lights. It is sectional drawing same as the above. The same as above, (a) is a perspective view with the light shielding member removed, and (b) is a perspective view with the light shielding member attached. The principal part of the reflecting plate used for the lighting fixture of Embodiment 2 is shown, (a) is a front view in the case of 1 light, (b) is in the case of 2 lights, (c) is a front view in the case of 3 lights. It is a disassembled perspective view which shows the lighting fixture of a prior art example. It is a disassembled perspective view which shows another example same as the above. It is a disassembled perspective view which shows another example same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Instrument main body 2 Feeding unit 3 Reflector 3a Notch part 4 Lamp 8 Lamp socket 12 Raceway (attachment part)

Claims (4)

  A device body attached to the mounted portion, a power supply unit attached to the device body, and a reflector attached to the power supply unit, the power supply unit according to the number of lamps Any one of a plurality of types of power supply units having a number of lamp sockets is selectively used, and a cutout portion is provided at a position overlapping with a plurality of arrangement positions of the lamp sockets included in each power supply unit in the reflector. Characteristic lighting equipment.   The lighting fixture according to claim 1, wherein a positioning portion that positions the reflecting plate by contacting the lamp socket is provided in the notch portion.   The reflector has a plurality of knockouts at positions overlapping with the plurality of arrangement positions of the lamp sockets, and the notch is removed by removing the corresponding knockouts according to the positions of the lamp sockets included in the selected power supply unit. The lighting apparatus according to claim 1, wherein a portion is formed.   A light shielding member for shielding light from the lamp, and in a state where the power supply unit to which the lamp and the reflection plate are attached is attached to the instrument main body, the appliance body, the power supply unit, or the reflection plate The lighting apparatus according to any one of claims 1 to 3, wherein the light shielding member is provided with attachment means for detachably attaching the light shielding member to any one of the above.

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