JP6618009B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture, and more particularly to a lighting fixture that is attached to a pole and used for road lighting or the like.

  As a conventional example, a lighting apparatus described in Patent Document 1 is illustrated. The lighting fixture described in Patent Document 1 (hereinafter referred to as a conventional example) is attached to an arm that protrudes in a horizontal direction from a lighting pole standing on the side of a road. This conventional example includes a housing including an instrument body and a cover, and a light source (such as an HID lamp) accommodated in an accommodation space provided in the housing. The instrument main body has a cylindrical storage box part whose surface shape is elliptical and whose upper and lower wall surfaces are open, and an arm mating part for holding the instrument main body on the arm. The arm mating portion is formed in a cylindrical shape having a slightly larger inner diameter than the outer shape of the arm. In the instrument body, the tip of the arm is inserted into the arm mating portion, and the arm is screwed from the outside of the arm mating portion to be fixed to the arm. The cover is rotatably connected to the end of the instrument body on the arm mating part side via a hinge, and is between a position where the upper opening of the instrument body is closed and a position where the upper opening is opened. It can be opened and closed.

JP2012-113910A

  By the way, in the above conventional example, the screw for screwing the arm mating portion to the arm is along the normal direction of the upper opening surface of the instrument body (the virtual plane including the upper opening edge of the instrument body). It is configured to be screwed into the arm mating portion. For this reason, in the conventional example described above, there is a possibility that the cover may become an obstacle in the work of tightening the screw, and improvement in workability of assembly has been desired.

  The present invention has been made in view of the above problems, and an object thereof is to improve the workability of assembly.

  The luminaire of the present invention is a luminaire that is attached to a pole standing on the ground, and is formed in a box shape having an open top surface. A cover that is attached and closes the opening of the upper surface; and an arm for fixing the instrument body to the pole. The arm is fixed to the pole, and a first fixing part fixed to the instrument body. The instrument body has a peripheral wall in contact with the first fixed part on the outer peripheral surface, and one or a plurality of bolt insertion holes provided in the peripheral wall for inserting bolts. The first fixing portion has one or a plurality of female screw portions into which one or a plurality of the bolts that are respectively inserted into one or a plurality of the bolt insertion holes are screwed, and the bolt insertion Hole and female screw Is the opening the normal of the upper surface, the bolt is greater than the orientation zeros inserted, and being provided inclined to an angle smaller than a right angle.

  The lighting fixture of the present invention has an effect that the workability of assembly can be improved.

1A is a front view, FIG. 1B is a plan view, FIG. 1C is a bottom view, FIG. 1D is a rear view, and FIG. 1E is a right side view. It is a disassembled perspective view of the lighting fixture which concerns on embodiment of this invention. It is a top view of the fixture main body in the lighting fixture which concerns on embodiment of this invention. It is a perspective view which shows the arm attachment base in the lighting fixture which concerns on embodiment of this invention. It is a front view of the lighting unit in the lighting fixture which concerns on embodiment of this invention. In the lighting fixture which concerns on embodiment of this invention, the lens of one LED unit was abbreviate | omitted, and it is a bottom view of the lighting unit which abbreviate | omitted the lens and holder of the other one LED unit. It is a right view of the lighting unit in the lighting fixture which concerns on embodiment of this invention. It is the cross-sectional perspective view which abbreviate | omitted partially including the arm in the lighting fixture which concerns on embodiment of this invention. It is the top view which abbreviate | omitted the cover of the lighting fixture which concerns on embodiment of this invention. It is front sectional drawing of the lighting fixture which concerns on embodiment of this invention.

  Hereinafter, the lighting fixture X which concerns on embodiment of this invention is demonstrated in detail with reference to drawings. The configurations described in the following embodiments are merely examples of the present invention. The present invention is not limited to the following embodiments, and various modifications can be made according to the design and the like as long as they do not depart from the technical idea of the present invention.

  A lighting fixture X (hereinafter referred to as a lighting fixture X) according to an embodiment of the present invention is attached to the upper end of a pole (not shown) standing on the ground, and illuminates a road (a roadway or a sidewalk) around the pole. It is a street light (or street light). However, in the following description, unless otherwise specified, the vertical, horizontal, and front-rear directions are defined in FIG. That is, the axial direction (vertical direction) of the pole is the vertical direction, the side of the arm 5 is the rear, and the side opposite to the arm 5 is the front.

  As shown in FIGS. 1A to 1E and 2, the lighting fixture X includes a fixture body 1, a cover 2, a lighting unit 3, a globe 4, an arm 5, and the like. The instrument body 1 is formed in a box shape with an upper surface opened by a metal material such as aluminum or aluminum alloy. More specifically, the instrument body 1 is formed in a bowl shape. 2 and 3, the instrument body 1 includes a circular window hole 10 opened in a bottom portion, a peripheral wall 11 surrounding the periphery of the window hole 10 over the entire circumference, and an inner wall of the peripheral wall 11. A first step portion 12 and a second step portion 13 projecting inwardly from the peripheral surface and projecting in a staircase shape are provided. The 1st step part 12 exists in the approximate center in the up-down direction of the surrounding wall 11, and is formed in the annular | circular shape seeing from the top. The second step portion 13 is inside the first step portion 12 and is formed in an annular shape when viewed from above. Further, the second step portion 13 is disposed below the first step portion 12. That is, the inner peripheral edge of the second step portion 13 is connected to the peripheral edge of the window hole 10 as viewed from above (see FIG. 3). The first step portion 12 and the second step portion 13 are both formed substantially parallel and flat with the opening surface of the window hole 10 (a virtual plane including the periphery of the window hole 10).

  The first step portion 12 is provided such that a plurality (six in the illustrated example) of female screw portions 120 are arranged at substantially equal intervals along the circumferential direction (see FIGS. 2 and 3). These six female screw portions 120 are formed so as to open upward with their axial directions aligned with the vertical direction.

  Further, the instrument body 1 is provided with a plurality of (six in the illustrated example) bosses 14 arranged at equal intervals along the circumferential direction on the upper end surface of the peripheral wall 11 (see FIGS. 2 and 3). These six bosses 14 are formed in a cylindrical shape whose axial direction is the vertical direction, and each have a screw hole 140 along the axial direction. These screw holes 140 are opened upward on the upper bottom surface of the boss 14.

  The instrument main body 1 also includes an arm mounting base 15. As shown in FIG. 4, the arm mounting base 15 is formed in a truncated pyramid shape protruding from the outer peripheral surface of the peripheral wall 11 at the rear portion of the peripheral wall 11. The arm mounting base 15 has a pair of bolt insertion holes 150 and a line hole 151. The pair of bolt insertion holes 150 are formed in a cylindrical shape penetrating the arm mounting base 15 and the peripheral wall 11. Further, the through hole 151 is formed in a long cylindrical shape through the arm mounting base 15 and the peripheral wall 11 between the pair of bolt insertion holes 150 (see FIGS. 2 to 4).

  As shown in FIGS. 1B and 2, the cover 2 includes a cover body 20 having a circular shape when viewed in the vertical direction, and a protruding wall 21 protruding downward from the periphery of the cover body 20. In addition, the cover body 20 is formed in an arc shape that is convex upward when viewed from the front-rear direction and the left-right direction (see FIGS. 1A, 1D, and 1E). In addition, the cover 2 is integrally formed with the cover body 20 and the protruding wall 21 by drawing a metal plate such as an aluminum plate, for example.

  A plurality (six in the illustrated example) of recesses 22 are provided in the vicinity of the periphery of the cover body 20 so as to be arranged at equal intervals along the circumferential direction (see FIGS. 1B and 2). Furthermore, circular screw insertion holes 220 are provided at the bottoms of the six recesses 22, respectively.

  The cover 2 is placed on the instrument main body 1 so that the tip (lower end) of the protruding wall 21 faces the tip (upper end) of the peripheral wall 11 (see FIGS. 1A, 1D, and 1E). Then, the six fixing screws 23 inserted through the six screw insertion holes 220 provided in the cover body 20 are respectively screwed into the screw holes 140 provided in the six bosses 14 of the instrument body 1. (See FIG. 1B and FIG. 2). That is, the cover 2 is screwed to the peripheral wall 11 of the instrument main body 1 to cover the opening of the upper surface of the instrument main body 1 (virtual plane including the upper end of the peripheral wall 11). However, a waterproof packing (not shown) formed in an annular shape with silicone rubber or the like is disposed between the peripheral wall 11 of the instrument body 1 and the protruding wall 21 of the cover 2, and between the peripheral wall 11 and the protruding wall 21. It is preferable to prevent rainwater from entering the instrument body 1 through the gap.

  The globe 4 has a globe body 40 and an outer collar portion 41. The glove body 40 and the outer collar part 41 are preferably formed integrally with a light-transmitting material (for example, polycarbonate resin) (see FIG. 2). However, the translucent material forming the globe 4 may be acrylic resin or glass. The globe body 40 has a circular shape when viewed from the top and bottom directions, a translucent part 400 formed in an arc shape that is convex downward when viewed from the front and rear direction and the left and right direction, and the periphery of the translucent part 400. It has a cylindrical outer peripheral wall 401 protruding upward. The outer collar portion 41 is formed in an annular shape protruding outward from the upper end of the outer peripheral wall 401 of the globe body 40 over the entire circumference. In addition, the outer collar portion 41 is provided with a waterproof packing 42 made of silicone rubber. The waterproof packing 42 is formed in an annular shape when viewed from the up and down direction. In the waterproof packing 42, the outer flange portion 41 is engaged with a groove 420 (see FIG. 2) formed on the inner peripheral surface over the entire circumference.

  As shown in FIGS. 2 and 5 to 7, the lighting unit 3 includes a plurality (four in the illustrated example) of LED units 30, a mounting plate 31, a power supply unit 32, and the like. In the following description, in FIG. 6, the upper left LED unit 30 may be referred to as a first LED unit 30A, and the upper right LED unit 30 may be referred to as a second LED unit 30B. Similarly, the lower left LED unit 30 may be referred to as a third LED unit 30C, and the lower right LED unit 30 may be referred to as a fourth LED unit 30D. However, the four LED units 30 (the first LED unit 30A, the second LED unit 30B, the third LED unit 30C, and the fourth LED unit 30D) all have the same structure.

  As shown in FIG. 6, the LED unit 30 includes an LED module 300, a holder 301, a lens 302, an insulating cover 303, a mounting base 304, and the like. However, in FIG. 6, the lens 302 of the second LED unit 30B and the fourth LED unit 30D and the holder 301 of the fourth LED unit 30D are not shown.

  The LED module 300 includes a disk-shaped light emitting section 3001 on the surface of a rectangular plate-shaped ceramic package 3000 (see the fourth LED unit 30D in FIG. 6). The light emitting unit 3001 is configured by sealing a number of LED chips (not shown) mounted on the surface of the package 3000 with a light-transmitting sealing resin such as a silicone resin. A large number of LED chips are, for example, blue LED chips that emit blue light. The LED module 300 converts a part of blue light emitted from these LED chips into yellow light with a phosphor mixed in a sealing resin, and a light emitting unit 3001 by color mixture of blue light and yellow light. Is configured to emit white light. In addition, a pair of terminal blocks 3002 are mounted on the ends of the package 3000. The pair of terminal blocks 3002 are individually and electrically connected to a pair of electrodes (an anode electrode and a cathode electrode) formed on the surface of the package 3000, respectively. Each terminal block 3002 is electrically connected with a power supply wire 305 (see FIG. 6). However, the electric wire 305 may be directly connected to a pair of electrodes (an anode electrode and a cathode electrode) without going through the terminal block 3002.

  The LED module 300 is attached to the mounting base 304 via an insulating cover 303. The mounting base 304 is formed in a polygonal shape (octagon in the illustrated example) from an aluminum plate or an aluminum alloy plate. The insulating cover 303 is formed in a rectangular frame shape from a synthetic resin material having electrical insulation, and the LED module 300 is fitted inside (see the fourth LED unit 30D in FIG. 6). The holder 301 is formed in a substantially pentagonal plate shape from a synthetic resin material having electrical insulation. The holder 301 has a through hole 3010 that penetrates in the thickness direction. The through hole 3010 has an inner peripheral surface formed in a truncated cone shape. The holder 301 is screwed to the mounting base 304 so as to sandwich the LED module 300 between the holder 301 and the insulating cover 303 (see the second LED unit 30B in FIG. 6). The light emitting unit 3001 of the LED unit 30 is exposed through the through hole 3010 of the holder 301. The lens 302 is formed in an approximately semi-ellipsoidal shape from a light-transmitting synthetic resin material such as polycarbonate resin or acrylic resin. Further, the lens 302 has L-shaped legs 3020 projecting outward from both ends in the long axis direction (see FIGS. 5 to 7). The pair of legs 3020 are formed with insertion holes penetrating in the thickness direction. The lens 302 is screwed to the mounting base 304 with a screw 306 inserted through the insertion holes of the pair of legs 3020 so as to cover the light emitting unit 3001 when viewed from the thickness direction (vertical direction) of the LED unit 30. (See FIGS. 5 to 7). However, the lens 302 has a recess 3021 formed on the rear end side (side from which the electric wire 305 is drawn) in the short axis direction (see the third LED module 30C in FIG. 6). Due to the recess 3021, the light of the light emitting unit 3001 reflected on a part of the inner peripheral surface of the through hole 3010 of the holder 301 is emitted backward without entering the lens 302.

  The mounting plate 31 is formed in an approximately disc shape by a plate material of aluminum or aluminum alloy. In the following description, of the two surfaces of the mounting plate 31, the surface on which the LED unit 30 is mounted is referred to as a first mounting surface 310 (see FIG. 6), and the surface on which the power supply unit 32 is mounted. This is called a second mounting surface 311 (see FIG. 2). In the vicinity of the edge of the mounting plate 31, six screw insertion holes 313 pass through the circumferential direction at intervals (see FIGS. 2 and 6).

  The four LED units 30 are mounted in the center of the first mounting surface 310 of the mounting plate 31 in two rows in the vertical direction (front-rear direction) and in the horizontal direction (left-right direction). The four LED units 30 are each fixed to a mounting plate 31 with a mounting base 304 screwed (see FIG. 6). The mounting plate 31 includes four through holes 312 through which a pair of electric wires 305 included in the four LED units 30 are respectively inserted (see FIG. 6). That is, the four pairs of electric wires 305 are respectively inserted into the through holes 312 from the first attachment surface 310 side of the attachment plate 31 and drawn out to the second attachment surface 311 side.

  Here, on the first mounting surface 310 of the mounting plate 31, the reflecting members 33 are disposed behind the first LED unit 30A and the second LED unit 30B and behind the third LED unit 30C and the fourth LED unit 30D, respectively ( FIG. 5 to FIG. 7). As shown in FIGS. 5 to 7, these two reflecting members 33 protrude along the thickness direction of the reflecting plate 330 from the long reflecting plate 330 and one end along the longitudinal direction of the reflecting plate 330. And a fixed piece 331. The reflector 330 is curved in an arc along the short direction (see FIG. 7). Further, the reflector 330 is formed so that the length in the longitudinal direction is not shorter than twice the length in the longitudinal direction of the mounting base 304 of the LED unit 30 (see FIG. 6). In addition, it is preferable that the reflecting plate 330 and the fixed piece 331 are integrally formed, for example, by punching and bending an aluminum plate. The two reflecting members 33 are fixed to the mounting plate 31 by screwing at both ends and the center in the longitudinal direction of the fixing piece 331 (see FIG. 6).

  As shown in FIG. 2, the power supply unit 32 includes a power supply device 320, a control device 321, and a fixing member 322. The power supply device 320 includes a power supply circuit (not shown) that supplies DC power to the four LED units 30 and a metal first case 3200 that houses the power supply circuit therein. The power supply circuit is, for example, a rectifier that rectifies AC voltage / AC current supplied from a commercial power system, a DC / DC converter that converts pulsating voltage / pulsating current rectified by the rectifier into DC voltage / DC current, etc. have. Further, the power supply circuit includes an input terminal block electrically connected to a power supply line (not shown) serving as an AC voltage / AC current circuit, and an output terminal of the DC / DC converter. And an output terminal block that is electrically connected to each other. The power supply circuit is configured by mounting circuit components constituting a rectifier and a DC / DC converter, an input terminal block, an output terminal block, and the like on one or a plurality of printed wiring boards. The power supply circuit operates when an AC voltage / AC current is supplied from the outside and outputs a DC voltage / DC current, and stops when no AC voltage / AC current is supplied from the outside. For example, the power supply circuit is supplied with AC voltage / AC current from the power system via a photoelectric flasher (not shown), and the ambient brightness is within the operating illuminance range of the photoelectric flasher. It is configured to operate in a band (for example, a time period from sunset to sunrise).

  The control device 321 includes a control circuit (not shown) that controls the power supply circuit of the power supply device 320, and a metal second case 3210 that houses the control circuit therein. The control circuit is configured to perform step dimming and timer control by controlling a DC / DC converter, for example. That is, the control circuit uses the built-in timer to elapse the elapsed time from the lighting start time (the time when supply of AC voltage / AC current is started from the outside). When the elapsed time reaches the dimming start time, the control circuit controls the DC / DC converter of the power supply circuit to make the current value of the output current of the power supply device 320 smaller than the rated value and perform step dimming. . Note that when the supply of AC voltage / AC current from the outside stops, the control circuit stops its operation together with the power supply circuit, and is reset (initialized) with the lapse of time by the built-in timer. However, the control operation of the control circuit described above is merely an example, and the control circuit may perform step dimming according to a control signal input from an external time switch (not shown), for example. The control circuit includes one or more printed wiring boards (not shown), a control integrated circuit, a control power supply circuit, a signal terminal block for outputting a control signal to the power supply circuit, and a step dimming level. And a changeover switch for setting the dimming start time. Note that, like the power supply circuit, the control circuit operates when an AC voltage / AC current is supplied from the outside, and stops when no AC voltage / AC current is supplied from the outside.

  As shown in FIGS. 2, 5, and 7, the fixing member 322 includes a first mounting portion 3220, a pair of fixing portions 3221, a pair of connecting portions 3222, a second mounting portion 3223, and a standing wall portion 3224. . The first attachment portion 3220 is formed in a long rectangular plate shape. The pair of fixing portions 3221 are each formed in a narrow rectangular plate shape whose length in the longitudinal direction is equal to the length in the short direction of the first mounting portion 3220. The pair of fixing portions 3221 are each provided with a through hole (not shown) near both ends in the longitudinal direction. The pair of connecting portions 3222 are each formed in a narrow rectangular plate shape whose length in the longitudinal direction is equal to the length in the short direction of the first mounting portion 3220. The pair of connecting portions 3222 is connected to one end along the short direction of the first mounting portion 3220 at one end along the longitudinal direction, and the length of the pair of fixing portions 3221 at the other end along the longitudinal direction. It is connected separately with one end along the direction. The standing wall portion 3224 is formed in a rectangular plate shape whose length in the longitudinal direction is equal to the length in the longitudinal direction of the first mounting portion 3220. The standing wall portion 3224 rises from one end along the longitudinal direction of the first attachment portion 3220 in the direction opposite to the connecting portion 3222. The second attachment portion 3223 is formed in a rectangular plate shape whose length in the longitudinal direction is equal to the length in the longitudinal direction of the first attachment portion 3220. The second attachment portion 3223 protrudes from the tip along the longitudinal direction of the standing wall portion 3224 in the direction opposite to the first attachment portion 3220. The first mounting portion 3220, the pair of fixing portions 3221, the pair of connecting portions 3222, the second mounting portion 3223, and the standing wall portion 3224 are integrally formed by punching and bending a metal plate such as a galvanized steel plate, for example. Preferably it is formed.

  A power supply device 320 is attached to the first attachment portion 3220. In the power supply device 320, a pair of projecting pieces 3201 provided on the first case 3200 are screwed to the first attachment portion 3220 (see FIGS. 2 and 5). However, a heat conductive sheet 323 having electrical insulation is sandwiched between the first case 3200 and the first attachment portion 3220 (see FIG. 2). In addition, the control device 321 is attached to the second attachment portion 3223. In the control device 321, a pair of projecting pieces 3211 provided on the second case 3210 are screwed to the second mounting portion 3223 (see FIGS. 2 and 5).

  The pair of fixing portions 3221 are screwed to the mounting plate 31 by screws inserted through the through holes at both ends into screw holes (not shown) provided in the mounting plate 31. Here, in a state where the fixing member 322 is attached to the second attachment surface 311 of the attachment plate 31, the first attachment portion 3220 and the attachment plate 31 (the second attachment surface 311 thereof) are connected by the pair of connecting portions 3222. A gap SS is provided between them (see FIG. 5). That is, since the gap SS is provided between the first mounting portion 3220 and the mounting plate 31, an air layer is formed between the first mounting portion 3220 and the mounting plate 31 (second mounting surface 311 thereof). Is done. Therefore, heat generated from the four LED units 30 attached to the first attachment surface 310 is difficult to be transmitted to the fixing member 322 (particularly the first attachment portion 3220). The first attachment portion 3220 is thermally coupled to the attachment plate 31 through a pair of fixing portions 3221 and a connecting portion 3222. However, if the fixing member 322 is formed of a metal material (for example, a steel plate) having a sufficiently lower thermal conductivity than the metal material (for example, aluminum) that forms the mounting plate 31, the first mounting from the mounting plate 31 is performed. Transmission of heat to the portion 3220 can be suppressed.

  In addition, the four through holes 312 provided in the mounting plate 31 are covered and hidden from above by the first mounting portion 3220 of the fixing member 322. However, the electric wire 305 drawn out from the through hole 312 to the second attachment surface 311 side is passed through a gap SS provided between the first attachment portion 3220 and the attachment plate 31 and output from the power supply device 320 ( Terminal block).

  The arm 5 has a first fixing portion 50 fixed to the instrument body 1 and a second fixing portion 51 fixed to the pole (see FIGS. 1E and 2). In addition, it is preferable that the 1st fixing | fixed part 50 and the 2nd fixing | fixed part 51 are integrally formed by aluminum die-casting. The second fixing portion 51 is formed in a cylindrical shape. The second fixing portion 51 is provided with a plurality (four in the illustrated example) of screw holes 510 penetrating in the radial direction (thickness direction) (see FIG. 1D). The second fixing portion 51 is put on a small diameter portion (not shown) provided at the tip of the pole from above, and the tip of the screw screwed into the four screw holes 510 hits the small diameter portion of the pole. It is fixed. Here, an electric wire fixing member 52 is accommodated in the second fixing portion 51. The wire fixing member 52 is formed in a long rectangular flat plate shape. As shown in FIGS. 1D and 1E, the wire fixing member 52 has a plurality of (four in the illustrated example) cable fixing tools 520 screwed to the rear surface. One of the two cable fixtures 520 screwed to the upper portion of the wire fixing member 52 has a pair of wires (not shown) for inputting an AC voltage / AC current to the power supply device 320. Z) is fixed. This pair of electric wires is called a lead wire. A signal line for connecting an external time switch to the control device 321 is connected to the other of the two cable fixtures 520 screwed to the upper portion of the wire fixing member 52 (see FIG. (Not shown) is fixed. Further, one of the two cable fixtures 520 screwed to the lower portion of the wire fixing member 52 is fixed with a power line (not shown) that is erected and wired in the pole. Has been. The power supply line is electrically connected to the lead wire. In addition, a signal line (light control) connected to an external time switch is fixed to the other of the two cable fixing tools 520 screwed to the lower portion of the electric wire fixing member 52. Has been. This light adjustment light (not shown) is electrically connected to the signal line.

  The first fixing part 50 projects forward from the upper part of the second fixing part 51. The 1st fixing | fixed part 50 is formed in the substantially triangular prism shape. Further, the upper surface of the first fixing portion 50 is opened. In addition, the opening of the upper surface of the 1st fixing | fixed part 50 is block | closed by the removable lid | cover 53 (refer FIG. 1B and FIG. 2). A recess 500 is provided at the front end of the first fixing portion 50 to engage with the arm mounting base 15 of the instrument body 1 (see FIG. 2). Furthermore, as shown in FIG. 2, a plurality (two in the illustrated example) of female screw portions 501 and a wire insertion hole 502 are provided at the bottom of the recess 500. The two female screw portions 501 are formed on the inner peripheral surface of a cylindrical protrusion (boss) that protrudes obliquely upward from the bottom of the recess 500 to the front. Note that these two female screw portions 501 are provided at the bottom of the recess 500 with an interval in the left-right direction. The electric wire insertion hole 502 is formed in a long cylindrical shape through the bottom of the recess 500 between the two female screw portions 501 (see FIG. 2).

  As shown in FIG. 8, the two female screw portions 501 are separated from the pair of bolt insertion holes 150 of the instrument body 1 in a state where the first fixing part 50 is engaged with the arm mounting base 15 of the instrument body 1. It is connected. Therefore, the two bolts 152 inserted through the pair of bolt insertion holes 150 are screwed into the two female screw portions 501 separately, whereby the first fixing portion 50 of the arm 5 is screwed to the arm mounting base 15 of the instrument body 1. Has been fixed. In addition, in a state where the first fixing portion 50 is fixed to the arm mounting base 15, the wire hole 151 of the arm mounting base 15 and the wire insertion hole 502 of the first fixing portion 50 are connected. The lead wire drawn from the power supply device 320 and the signal line drawn from the control device 321 are inserted into the second fixing portion 51 through the through hole 151 and the electric wire insertion hole 502.

  Here, the bolt insertion hole 150 and the female screw portion 501 have a direction in which the bolt 152 is inserted larger than zero and smaller than a right angle with respect to the normal line (vertical line) of the upper surface of the instrument body 1 (upper part thereof). It is provided inclined at an angle φ (see FIG. 8). The angle φ is preferably about 35 ° to 45 °.

  Next, the assembly procedure of the lighting fixture X will be described. First, the worker who performs the assembly work attaches the lighting unit 3 by attaching the four LED units 30 to the first attachment surface 310 of the attachment plate 31 and attaching the power supply unit 32 to the second attachment surface 311 of the attachment plate 31. assemble. Then, the operator inserts the outer collar portion 41 into the groove 420 of the waterproof packing 42 and attaches the waterproof packing 42 to the glove 4. Furthermore, the operator inserts the glove body 40 into the window hole 10 from above the instrument body 1 and places the outer collar part 41 covered with the waterproof packing 42 on the second step part 13, and then turns on the lighting unit. 3 is mounted on the first step portion 12 (see FIGS. 9 and 10). At this time, the six screw insertion holes 313 provided in the mounting plate 31 and the six female screw portions 120 provided in the first step portion 12 are connected to each other along the vertical direction. Then, the operator inserts screws (not shown) into the six screw insertion holes 313 of the attachment plate 31 from above, and screws the six screws into the six female screw portions 120, respectively. Is attached to the instrument body 1. At this time, the glove 4 is attached to the instrument main body 1 with the outer collar part 41 sandwiched between the attachment plate 31 and the instrument main body 1 (second step part 13 thereof) via the waterproof packing 42 (see FIG. 10). ).

  Subsequently, as described above, the operator fixes the first fixing portion 50 of the arm 5 to the arm mounting base 15 of the instrument body 1 using the two bolts 152. Here, the direction in which the bolt 152 is inserted into the bolt insertion hole 150 is inclined at an angle φ with respect to the normal of the upper surface of the instrument body 1. Therefore, when tightening a bolt using a tool, it is not necessary to put an operator's hand in the instrument main body 1, and workability is improved. If the angle φ is zero, that is, the direction in which the bolt 152 is inserted into the bolt insertion hole 150 coincides with the normal direction of the upper surface of the instrument main body 1, the length of the female screw portion 501 of the arm 5 is secured. There is a possibility that the one fixing part 50 becomes large. On the other hand, if the angle φ is larger than zero and smaller than the right angle, the arm 5 can be prevented from being enlarged while improving workability.

  In the instrument body 1, the first step portion 12 to which the mounting plate 31 is screwed is disposed below the bolt insertion hole 150. For this reason, the lighting unit 3 can be attached to the instrument body 1 before the arm 5 is attached to the instrument body 1. Therefore, the arm 5 does not get in the way when the lighting unit 3 is attached to the appliance body 1, and the assembling workability can be improved.

  Further, since the power supply unit 32 is mounted at a position away from the bolt insertion hole 150 (in the center of the mounting plate 31), the power supply device 320 and the control device 321 of the power supply unit 32 obstruct the operation when the bolt 152 is tightened. It ’s hard to be. Therefore, the lighting fixture X can aim at the further improvement of workability | operativity of an assembly.

  After attaching the arm 5, the operator puts the cover 2 on the peripheral wall 11 of the instrument body 1, and inserts the six fixing screws 23 into the six screw insertion holes 220 of the cover body 20 from above, The cover 2 is fixed by screwing into the screw holes 140 of the six bosses 14 of the instrument body 1. Thus, when the cover 2 is attached to the fixture body 1, the assembly operation of the lighting fixture X is completed.

  The lighting fixture X is attached to the pole with the second fixing portion 51 of the arm 5 fixed to the tip of the pole. The four LED units 30 control the light distribution of the light emitted from the LED module 300 with the lens 302 and reflect a part of the light that cannot be controlled by the lens 302 (light emitted behind the lens 302). Reflected by the plate 330. As a result, the lighting fixture X can increase the amount of light forward to illuminate the entrance of a building or the like. However, the light distribution characteristic of the luminaire X is an example, and it is a light distribution characteristic that irradiates the entire circumference of the pole with a substantially uniform light amount or increases the light amount on the left and right sides of the pole along the road. It doesn't matter.

  As described above, the luminaire X is a luminaire attached to a pole standing on the ground. The lighting fixture X is formed in a box shape having an upper surface opened. The lighting fixture X includes a fixture main body 1 that houses a lighting unit 3 including a light source (LED unit 30), a cover 2 that is attached to the fixture main body 1 and closes an opening on the upper surface, and fixes the fixture main body 1 to a pole. And an arm 5 for the purpose. The arm 5 has a first fixing part 50 fixed to the instrument body 1 and a second fixing part 51 fixed to the pole. The instrument main body 1 has a peripheral wall 11 that contacts the first fixing portion 50 on the outer peripheral surface, and one or a plurality of bolt insertion holes 150 provided in the peripheral wall 11 for inserting bolts 152. The first fixing portion 50 has one or a plurality of female screw portions 501 into which one or a plurality of bolts 152 that are respectively inserted into one or a plurality of bolt insertion holes 150 are screwed. The bolt insertion hole 150 and the female thread portion 501 are provided so that the direction in which the bolt 152 is inserted is inclined to an angle φ larger than zero and smaller than a right angle with respect to the normal line of the opened upper surface.

  If the lighting fixture X is configured as described above, it is not necessary to put an operator's hand in the fixture body 1 when the bolt 152 is tightened using a tool. Compared to the case, the workability of assembly can be improved. And since angle (phi) is made larger than zero, the lighting fixture X can suppress the enlargement of the arm 5. FIG.

  Moreover, in the lighting fixture X, it is preferable that the lighting unit 3 has the 1 or several LED unit 30, and the attachment board 31 with which the LED unit 30 was attached to one surface (lower surface). The mounting plate 31 is preferably fixed to the instrument main body 1 such that the LED unit 30 faces downward, and is disposed below the opening end of the bolt insertion hole 150 in the instrument main body 1.

  If the lighting fixture X is configured as described above, the arm 5 can be attached to the fixture body 1 in a state where the lighting unit 3 is accommodated in the fixture body 1, so that the lighting unit 3 is attached to the fixture body 1. The arm 5 does not get in the way during the work, and the workability of the assembly can be further improved.

  Furthermore, the lighting fixture X preferably includes a power supply device 320 that supplies power to the LED unit 30 to light it. The power supply device 320 is preferably arranged at a position away from the bolt insertion hole 150 on the other surface (upper surface) of the mounting plate 31.

  If the lighting fixture X is configured as described above, the power supply device 320 is unlikely to obstruct the operation during the tightening operation of the bolt 152, and therefore, the assembly workability can be further improved.

X lighting fixture 1 fixture body 2 cover 3 lighting unit 5 arm 11 peripheral wall 30 LED unit (light source)
31 Mounting plate 50 First fixing portion 51 Second fixing portion 150 Bolt insertion hole 152 Bolt 320 Power supply device 501 Female thread portion

Claims (3)

A lighting fixture attached to a pole standing on the ground, which is formed in a box shape with an upper surface opened, and a fixture main body that houses a lighting unit including a light source, and an opening in the upper surface that is attached to the fixture main body A cover for closing the arm, and an arm for fixing the instrument body to the pole,
The arm has a first fixing portion fixed to the instrument body, and a second fixing portion fixed to the pole.
The instrument body has a peripheral wall that contacts the first fixing portion on an outer peripheral surface, and one or a plurality of bolt insertion holes provided in the peripheral wall for inserting bolts.
The first fixing portion has one or a plurality of female screw portions into which one or a plurality of the bolts that are respectively inserted into one or a plurality of the bolt insertion holes are screwed,
The bolt insertion hole and the female threaded portion are provided so that the direction in which the bolt is inserted is inclined with respect to a normal line of the opened upper surface larger than zero and smaller than a right angle. Instruments.   The lighting unit has one or a plurality of the light sources and a mounting plate on which one of the light sources is provided, and the mounting plate is fixed to the instrument body so that the light source faces downward. And the lighting fixture of Claim 1 arrange | positioned below the opening end of the said bolt penetration hole in the said fixture main body.   The illumination according to claim 2, further comprising a power supply device that supplies power to the light source and lights the light source, and the power supply device is disposed at a position away from the bolt insertion hole on the other surface of the mounting plate. Instruments.

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