JP6037265B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture.

  2. Description of the Related Art Conventionally, there has been provided a lighting fixture that is attached to the tip of a pole and used as a street light or a road light (see, for example, Patent Document 1). The lighting fixture includes a lamp body that is configured in a substantially spherical shape and a light source accommodated in the lamp body, and the lamp body has a hemispherical cover, a hemispherical shape, and a light-transmitting property. It comprises a globe, a reflecting mirror that reflects light from the light source downward, and a holder for holding the pole. And according to this lighting fixture, the light emitted from the light source and the light reflected by the reflecting mirror are transmitted through the globe arranged on the lower side, and the light transmitted through the globe is all around the lower part around the pole. Irradiated in the direction.

JP 2010-272325 A

  In the lighting fixture shown in Patent Document 1 described above, since the entire holder for holding the pole protrudes outward from the globe, there is a problem that the overall height of the fixture becomes high.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a thin lighting fixture in which the overall height of the fixture is kept low.

The luminaire of the present invention is a luminaire that is attached to the tip of a pole erected from the ground, and includes a light source unit, a lighting device that supplies lighting power to the light source unit, and a light source that illuminates the ground around the pole. A fixture body that holds the light source unit so as not to block the light of the light source unit, a fixing portion that is provided at the center of the lower part of the fixture body and is fixed to the pole, and made of a translucent material. A glove attached to the lower side and a mounting bracket for attaching the glove to the instrument body are provided. In a state where the glove is attached to the instrument body, the fixing portion penetrates the glove in the vertical direction and a part thereof is surrounded by the glove. The globe has a recess in which a part of the fixed part is accommodated in a state where the glove is attached to the instrument body. And a glove is attached to an instrument main body by pinching the bottom part of a crevice with a part of instrument main part and an attachment metal fitting.

  In this lighting fixture, the fixture body has a flat plate portion and an inclined portion that extends from the edge of the flat plate portion and inclines outward as it goes upward, and the light source portion is disposed on the lower surface side of the inclined portion and is lit. The device is preferably arranged in a space surrounded by the flat plate portion and the inclined portion.

  The lighting device further includes a fall prevention means for preventing the globe from falling when the glove is attached to or detached from the fixture body. The fall prevention means has one end attached to the mounting bracket and the other end from the pole. It is also preferable to have a wire that is secured.

  When the glove is attached to the instrument body, the part of the fixed part fixed to the pole is surrounded by the glove, so the overall height of the instrument is larger than when the entire fixed part protrudes outward from the glove. Can be kept low, and the lighting apparatus can be thinned.

An example of the lighting fixture of this embodiment is shown, (a) is side sectional drawing, (b) is the one part detail drawing. (A) is a whole perspective view of the state which removed the glove from the same as the above, (b) is a perspective view showing other examples of a fixing member used for the same. (A) is a top view same as the above, (b) is a bottom view partially broken. The state which removed the glove from the same is shown, (a) is a side view, (b) is a sectional side view.

  Below, embodiment of the lighting fixture A is described with reference to FIGS. The lighting fixture A of the present embodiment is attached to the tip of a pole 100 (see FIG. 2A) erected from the ground, for example, and is used as a street light, park light, or road light that illuminates the ground around the pole 100. . In the following description, the vertical direction in FIG. 1A is defined as the vertical direction unless otherwise specified.

  The lighting fixture A of this embodiment includes a light source unit 4, a power supply unit 5 (lighting device) that supplies lighting power to the light source unit 4, a fixture body 1 that holds the light source unit 4 and the power supply unit 5, and a light source unit 4. The glove 2 attached to the instrument main body 1 so as to cover the cover, the cover 3 that closes the upper opening of the instrument main body 1, and the mounting bracket 6 for attaching the glove 2 to the instrument main body 1 are provided as main components.

  The light source unit 4 includes a heat radiating member 41 (see FIG. 3B) formed in a substantially rectangular plate shape with a material having high thermal conductivity (for example, aluminum, aluminum alloy, copper, stainless steel, etc.). A mounting board (not shown) on which LED elements are mounted is attached to the upper surface of 41 (the lower surface in FIG. 1A). The light source unit 4 includes a dome-shaped lens unit 42 that controls light distribution of light emitted from the LED element. The lens unit 42 is attached to the heat dissipation member 41 so as to cover the LED element. Yes.

  The power supply unit 5 has a dimming function that supplies lighting power to the light source unit 4 and changes the dimming rate of the light source unit 4. Specifically, when the light source unit 4 is turned on at a dimming rate of 100% in a time zone where lighting is necessary, such as at dusk, and the necessity for lighting decreases with time, the dimming is lower than 100%. The light source unit 4 is turned on at a rate (50% or 30% as an example). That is, in the lighting fixture A of this embodiment, the step light control according to progress of time is possible. Further, the power supply unit 5 is connected to the light source unit 4 by a power supply line 43.

  The instrument main body 1 is made of a metal material (for example, aluminum, aluminum alloy, stainless steel, etc.), and has a bowl-shaped main body portion 11 having an open lower surface and an upper surface, and a hollow quadrangular frustum shape, and holds the light source unit 4. The holding portion 13 and a cylindrical fixing portion 12 that is provided integrally with the flat plate portion 15 (bottom surface portion) of the holding portion 13 and is fixed to the pole 100 are included.

  The main body 11 is formed in a bowl shape as described above, and a circular opening 17 (see FIG. 1A) is provided at the center of the upper surface of the main body 11 and further outside the opening 17. A plurality of (five in FIG. 3A) recesses 16 are provided along the circumferential direction. In addition, an insertion hole 16 a through which a fixing screw (not shown) is inserted is provided at the bottom of each recess 16. Furthermore, a square pyramid shaped holding portion 13 is integrally formed at the opening edge of the opening 17. In addition, the cover 3 formed in the outer diameter dimension larger than the opening dimension of the opening part 17 is attached to the opening part 17 of the main-body part 11 so that attachment or detachment is possible, for example, setting of the power supply unit 5 (light source) It can be opened when changing the dimming rate of the unit 4) or replacing the power supply unit 5.

  The holding portion 13 is formed in a quadrangular frustum shape with a flat plate portion 15 constituting the bottom surface portion and four inclined portions 14 that extend from the edge of the flat plate portion 15 and incline outward as it goes upward. 14 is integrated with the main body 11 at the upper end portion. And each one light source part 4 is attached to the lower surface of each inclination part 14, and the light from each light source part 4 is irradiated toward diagonally downward. A cylindrical fixing portion 12 is integrally formed at the lower center of the flat plate portion 15. Furthermore, in the flat plate portion 15, insertion holes 15 a and 15 b through which wires 81 of the fall prevention device 8 described later are inserted, and insertion holes 15 c through which power lines and signal lines (not shown) connected to the power supply unit 5 are inserted. And are provided.

  Here, white coating is applied to the inner peripheral surfaces of the inclined portions 14 and the main body portion 11, thereby improving the reflectance of light emitted from the light source portion 4. Further, the insertion holes 15 a and 15 c are provided at positions that communicate with the inside of the cylinder of the fixing portion 12, and the insertion holes 15 b are provided at positions outside the fixing portion 12. Furthermore, the power supply unit 5 is disposed in a space a1 (see FIG. 1A) surrounded by the flat plate portion 15 and the four inclined portions 14, and light from the light source unit 4 is blocked by the power supply unit 5. There is nothing.

  The fixed portion 12 is fixed to the tip of the pole 100 to hold the lighting fixture A, and the inner diameter dimension is set slightly larger than the outer diameter dimension of the small diameter portion 102 of the pole 100. Further, the outer diameter dimension of the fixing portion 12 is set to be approximately the same as the outer diameter dimension of the large diameter portion 101 of the pole 100, and there is no step at the joint portion when the lighting fixture A is attached to the pole 100. Can be attached in shape. Furthermore, a screw hole 12a is provided on the side surface of the fixing portion 12, and the tip of a fixing screw (not shown) screwed into the screw hole 12a abuts on the side surface of the pole 100 (small diameter portion 102). The luminaire A is fixed to the pole 100. Further, in the cylinder of the fixing portion 12, a fixing member 7 is arranged to fix the power supply line and the signal line from the power supply unit 5 wired in the cylinder through the insertion hole 15c. The fixing member 7 is provided with a plurality (three in FIG. 1A) of tension stoppers 71, and is wired along the longitudinal direction of the fixing member 7 (vertical direction in FIG. 1A). The above-described power supply line and signal line are fixed to the fixing member 7 using these tension stoppers 71.

  The globe 2 is formed in a bowl shape whose upper surface is opened by a translucent material (for example, acrylic resin). In the center of the lower surface of the globe 2, a concave portion 21 having an opening size larger than the outer diameter size of the fixing portion 12 of the instrument body 1 is provided, and the bottom portion 22 of the concave portion 21 is slightly smaller than the outer diameter size of the fixing portion 12. The insertion hole 22a is set to be large. The bottom portion 22 of the recess 21 is provided with an insertion hole 22b through which the wire 81 is inserted. Furthermore, the glove 2 is provided with a mounting bracket 9 having a screw hole 9a attached to a portion corresponding to each recess 16 provided in the main body 11 of the instrument main body 1, and after the glove 2 is assembled to the instrument main body 1. The globe 2 is fixed to the instrument body 1 by screwing a fixing screw (not shown) inserted through the insertion hole 16 a of the recess 16 into the screw hole 9 a of the mounting bracket 9. Also, the inner surface of the globe 2 (upper surface in FIG. 1A) is provided with a plurality of prism portions 23 having a concavo-convex shape, and light from the light source portion 4 is diffused by the prism portions 23 to the outside. Irradiated. Here, in a state in which the globe 2 is attached to the instrument body 1, the insertion hole 15 b of the flat plate portion 15 and the insertion hole 22 b of the bottom portion 22 communicate with each other.

  The mounting bracket 6 is formed in a ring shape as shown in FIG. 3B, and the opening 62 provided in the center is set slightly larger than the outer diameter of the fixing portion 12 of the instrument body 1. Further, the mounting bracket 6 is provided with a plurality (four in this embodiment) of insertion holes 63 along the circumferential direction, and an insertion hole 64 through which one end of the wire 81 is inserted. Then, after assembling the globe 2 to the instrument body 1, the mounting bracket 6 is inserted into the recess 21 of the globe 2 while the fixing portion 12 is inserted through the opening 62, and the fixing screw 61 inserted through the insertion hole 63 is inserted into the flat plate portion. 15, the bottom portion 22 of the recess 21 of the globe 2 is sandwiched between the flat plate portion 15 of the instrument body 1 and the mounting bracket 6, and the globe 2 is attached to the instrument body 1. Fixed. Circular packings (not shown) are inserted between the flat plate portion 15 of the instrument body 1 and the bottom portion 22 of the concave portion 21 of the globe 2 and between the bottom portion 22 of the concave portion 21 and the mounting bracket 6. Waterproofness is ensured.

  Here, a ring-shaped packing 10 (see FIG. 4B) is attached in the vicinity of the outer edge of the globe 2, and the waterproofness between the instrument body 1 is secured by this packing 10. However, when the glove 2 is attached to the instrument body 1 using only the mounting bracket 6 described above, the degree of adhesion at the outer edge portion is weak, and there is a possibility that sufficient waterproofness cannot be ensured. Therefore, in the present embodiment, the fixing screws inserted through the insertion holes 16a of the respective recesses 16 of the instrument body 1 are screwed into the corresponding screw holes 9a of the mounting bracket 9 so that the outer edge of the globe 2 and the instrument body 1 The degree of adhesion is increased and waterproofness is ensured.

  By the way, one end of a wire 81 of a fall prevention device 8 (fall prevention means) is attached to the mounting bracket 6 as shown in FIGS. 1 (a) and 1 (b). The other end side of the wire 81 passes through the insertion hole 22b provided in the bottom portion 22 of the recess 21 of the globe 2 and the insertion hole 15b provided in the flat plate portion 15 of the instrument body 1, and further through the insertion hole 15a provided in the flat plate portion 15. The weight 82 is inserted into the cylinder of the fixed portion 12 and attached to the tip. When the fixing screw 61 that fixes the mounting bracket 6 is removed, the glove 2 and the mounting bracket 6 move away from the instrument body 1 due to the weight of the globe 2 (downward in FIG. 1A). Since the weight 82 attached to the other end of the wire 81 is locked to the end edge portion of the insertion hole 15a of the flat plate portion 15, the globe 2 can be held by the mounting bracket 6, and the globe 2 falls. Can be prevented.

  Next, the assembly procedure of the lighting fixture A will be described. In the following description, it is assumed that the fixing member 7 is attached to the fixing portion 12 in advance. After attaching the light source part 4 to each inclined part 14 of the holding part 13 of the instrument main body 1 and arranging the power supply unit 5 in the space a1 surrounded by the flat plate part 15 and each inclined part 14, each light source part 4 and The power supply units 5 are connected by power supply lines 43, respectively. Subsequently, the opening 17 of the instrument body 1 is closed by the cover 3 and the globe 2 is assembled to the instrument body 1 from below. At this time, the fixing portion 12 of the instrument body 1 is exposed to the outside through the insertion hole 22 a provided in the bottom portion 22 of the concave portion 21 of the globe 2, but a part thereof is stored in the concave portion 21 of the globe 2. (See FIG. 1 (a)). Then, the attachment fitting 6 is inserted into the recess 21 of the globe 2 while the fixing portion 12 of the appliance main body 1 is inserted into the opening 62 of the attachment fitting 6, and the attachment fitting 6 is fixed to the appliance main body 1 by the fixing screw 61. Thus, the globe 2 is sandwiched between the instrument body 1 and the mounting bracket 6 and attached to the instrument body 1. Then, the instrument main body 1 and the glove 2 are more closely contacted by screwing the fixing screws inserted into the insertion holes 16a of the recesses 16 provided in the main body 11 of the instrument main body 1 into the screw holes 9a of the mounting bracket 9. Combined with Finally, the power supply line and the signal line from the power supply unit 5 inserted into the cylinder of the fixing portion 12 through the insertion hole 15c of the flat plate portion 15 are fixed to the fixing member 7 using the tension stopper 71, and further fall prevention is performed. When the other end of the wire 81 of the device 8 is fixed to the mounting bracket 6 through the insertion holes 15a, 15b, and 22b, the assembly of the lighting fixture A is completed.

  When attaching the luminaire A assembled in this way to the pole 100, first, the power line and signal line sent from the pole 100 side are respectively connected to the power line and signal line from the luminaire A side. Connecting. Then, while inserting the fixing member 7 and the fall prevention device 8 into the cylinder of the pole 100, the small diameter portion 102 of the pole 100 is inserted into the cylinder of the fixing portion 12, and the fixing portion 12 is fixed to the small diameter of the pole 100 using a fixing screw. If it fixes to the part 102, attachment of the lighting fixture A will be completed.

  Thus, according to this embodiment, in a state where the globe 2 is attached to the instrument body 1, a part of the fixing portion 12 fixed to the pole 100 is accommodated in the concave portion 21 of the globe 2. Compared with the case where the whole is outside the globe 2, the overall height of the fixture can be kept low, and the lighting fixture A can be made thinner. In addition to reducing the thickness of the lighting fixture A, the material cost can be reduced and the weight can be reduced, and the landscape can be taken into consideration. Further, as in the present embodiment, the light source unit 4 is disposed on the lower surface side of the inclined portion 14, and the power source unit 5 is disposed in the space a <b> 1 surrounded by the flat plate portion 15 and each inclined portion 14. 4 and the power supply unit 5 can be arranged at the same height position, and as a result, the height dimension of the entire instrument can be further reduced. Moreover, in the state which attached the glove | globe 2 to the instrument main body 1, since the attachment metal fitting 6 is arrange | positioned in the deep position (inside the recessed part 21) of the glove 2, the attachment part becomes difficult to see from the outside and the advantage that an appearance improves. There is.

  In the present embodiment, the fixing member 7 formed in the shape of a long plate as illustrated in FIG. 1A has been described as an example. However, as illustrated in FIG. The fixing member 7 may be configured by the metal fitting 73 so that the tension stopper 73 can be rotated with respect to the support metal 72 in the direction of the arrow B and in the direction opposite to the arrow B. In this case, when packing the lighting fixture A, by rotating the tension stopper 73 in the direction opposite to the arrow B (the state indicated by the two-dot chain line in FIG. 2B), the thickness dimension at the time of packing is set. Can be small. And when using the lighting fixture A, the tension stopper 73 is rotated in the direction of the arrow B (the state indicated by the solid line in FIG. 2B), and is fixed with the fixing screw 74. The support fitting 72 and the tension stopper 73 are integrally fixed.

  In the present embodiment, the case where the number of the light source units 4 is four has been described as an example. However, the number of the light source units 4 is not limited to the present embodiment, and may be 1 to 3, or 5 or more. There may be. Furthermore, the light source of the light source unit is not limited to the LED, and may be another light source. Furthermore, in this embodiment, although the fixing | fixed part 12 is provided integrally with the instrument main body 1, a separate body may be sufficient. In the present embodiment, the weight 82 attached to the other end of the wire 81 is locked to the edge portion of the insertion hole 15a of the flat plate portion 15 to prevent the wire 81 from coming off. Any other method may be used as long as it can be prevented from being detached from the instrument body 1. Furthermore, in the present embodiment, the globe 2 is formed of an acrylic resin, but the globe 2 may be formed of, for example, a diffusible material or a milk white material.

1 Appliance body 2 Globe 4 Light source 5 Power supply unit (lighting device)
12 fixed part A lighting fixture

Claims (3)

A lighting fixture attached to the tip of a pole erected from the ground,
A light source unit;
A lighting device for supplying lighting power to the light source unit;
An instrument body that holds the light source unit so as to illuminate the ground around the pole and does not block the light of the light source unit; and
A fixing part provided at the lower center of the instrument body and fixed to the pole;
A glove made of a translucent material and attached to the lower side of the instrument body ;
A mounting bracket for attaching the glove to the instrument body ;
In the state where the glove is attached to the instrument body, the fixing portion penetrates the glove in the vertical direction and a part thereof is surrounded by the glove .
The glove has a recess in which a part of the fixed part is accommodated in a state attached to the instrument body,
The glove is attached to the instrument body by sandwiching the bottom of the recess by a part of the instrument body and the mounting bracket . The instrument body has a flat plate portion, and an inclined portion that extends from the edge of the flat plate portion and inclines outward as it goes upward.
The light source part is disposed on the lower surface side of the inclined part,
The lighting device according to claim 1, wherein the lighting device is disposed in a space surrounded by the flat plate portion and the inclined portion. A fall prevention means for preventing the glove from dropping when the glove is attached to or detached from the instrument body;
The lighting apparatus according to claim 1 or 2 , wherein the fall prevention means includes a wire having one end attached to the mounting bracket and the other end secured from the pole .

Images