JP6187929B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture.

  2. Description of the Related Art Conventionally, lighting fixtures that are installed on the ground and attached to the tip of a pole (post) that is lower than the height of an adult are used for lighting a garden or a promenade.

  For example, in Patent Document 1, light emitted from a light source disposed in a pole (post) erected on the ground is converted into an inverted frustoconical reflector disposed in an opening at the top end of the pole. Describes a luminaire (pole lamp) configured to illuminate the surroundings of the pole by reflecting off.

JP 2002-260410 A

  However, the conventional example described in Patent Document 1 has a problem that unpleasant glare occurs on the reflecting surface of the reflecting plate exposed to the outside.

  The present invention has been made in view of the above problems, and an object thereof is to suppress unpleasant glare.

The lighting fixture of the present invention includes a fixture main body that is formed in a cylindrical shape and arranged with an open end upward, an LED light source that is housed in the fixture main body and emits light toward the open end, and the fixture A reflection member that is provided outside the main body and reflects the light passing through the opening end in a direction away from the opening end; and a bottomed cylindrical shape with a peripheral wall protruding from a peripheral edge of the top plate; A light-shielding portion disposed above the instrument body so as to accommodate the reflecting member in a space surrounded by the peripheral wall and the top plate and facing the opening end of the instrument body, and an outer periphery of the instrument body The surface is formed in a stepped shape, and a gap through which the light reflected by the reflecting member passes is formed between the peripheral wall and the instrument body.

  In this lighting apparatus, it is preferable that the apparatus main body is formed in a shape that tapers toward the opening end.

  In this lighting fixture, it is preferable that a globe that diffuses the light reflected by the reflecting member is disposed inside the peripheral wall, and the globe is formed in a shape that increases in diameter as the distance from the opening end increases. .

  In this lighting apparatus, it is preferable that an attachment member for attaching the globe to the top plate of the light shielding portion is provided, and the attachment member has a reflection surface formed at a portion facing the globe.

  In the lighting fixture of the present invention, since the reflecting surface of the reflecting member is hidden behind the peripheral wall of the light shielding portion, unpleasant glare is suppressed as compared with the case where the reflecting surface is exposed to the outside as in the conventional example. There is an effect that can be.

It is sectional drawing which shows embodiment of the lighting fixture which concerns on this invention. It is an exploded perspective view same as the above. It is an exploded perspective view same as the above. The same as the above, (a) is a plan view and (b) is a side view. The same as above, (a) is a perspective view seen from above, (b) is a perspective view seen from below. It is a side view which shows the installation state same as the above. It is sectional drawing abbreviate | omitted partially same as the above.

  Hereinafter, embodiments of a lighting apparatus according to the present invention will be described in detail with reference to the drawings.

  The lighting fixture A of this embodiment is a lighting fixture attached to the support | pillar 9 standing from the ground G, as shown in FIG. 6, Comprising: For example, it is used for the illumination of a garden, a promenade, etc. In addition, although the height of the support | pillar 9 is not specifically limited, About several dozen centimeters-1 meter are preferable. Moreover, the lighting fixture A of this embodiment may be used for the use which illuminates the foot of a pedestrian by being installed on the ground, the floor, or the like without the support 9.

  This lighting fixture A is comprised by the instrument main body 1, the LED unit 2, the reflection member 3, the globe 4, the light-shielding part 5, the lighting device 6, etc. as shown in FIGS. 1-3.

  As shown in FIG. 1, the LED unit 2 includes an LED light source 20, a main body 21, a lid 22, a cover 23, a packing 24, and the like. The LED light source 20 is composed of a plurality of light emitting diode (LED) chips mounted on a substrate, and a sealing member made of a synthetic resin (for example, a silicone resin) having a light transmitting property and mixed with a fluorescent material. Is done. That is, a part of light emitted from an LED chip (not shown) (for example, blue light) is wavelength-converted with a fluorescent material, and wavelength-converted light (for example, yellow light) and light that has not been wavelength-converted (for example, yellow light) As a result, the light emitted from the LED light source 20 becomes white light as a whole.

  The main body 21 is formed into a flat rectangular parallelepiped shape by aluminum die casting, and a storage recess 210 is provided in the center of the upper surface. The LED light source 20 is fixed to the bottom surface of the housing recess 210, and heat generated by the LED light source 20 is radiated through the main body 21.

  The cover 23 is formed by integrally forming a flat plate-like fixing portion 230 and a dome-shaped light distribution portion 231 bulging upward from the center of the fixing portion 230 with a synthetic resin material having translucency such as polycarbonate. .

  The lid 22 is screwed to the upper surface of the main body 21 by four fixing screws 25, and the cover 23 is fixed to the main body 21 by sandwiching the fixing portion 230 with the main body 21. An insertion hole 220 through which the light distribution portion 231 of the cover 23 is inserted passes through the center of the lid 22. Therefore, the light emitted from the LED light source 20 is emitted outside the main body 21 with the light distribution controlled by the light distribution unit 231.

  The packing 24 is formed in a ring shape from a synthetic resin material having elasticity (for example, silicone rubber). Then, the packing 24 is stored in a groove 211 formed around the storage recess 210 on the upper surface of the main body 21, and the packing 24 is elastically deformed by being pressed by the fixing portion 230 of the cover 23, thereby entering the storage recess 210. Intrusion of water (rain water, etc.) is blocked.

  In the instrument main body 1, a bottomed cylindrical base portion 10 having an open bottom surface and a main body portion 11 projecting upward from the top surface of the base portion 10 are integrally formed by aluminum die casting. The main body 11 is formed in a truncated cone shape that tapers upward. Further, the main body 11 has a circular window hole 12 in the top plate 110. Furthermore, the outer peripheral surface of the main body 11 is formed in a step shape. In addition, the inside of the main body 11 is hollow and is connected to the internal space of the base 10 (see FIG. 1).

  Further, the instrument body 1 has a plurality of cylindrical bosses 13 with screw holes opened on the lower surface thereof and projecting downward from the inner bottom surface of the top plate 110 (see FIG. 2). The LED unit 2 is held by a metal holding metal fitting 26, and the holding metal fitting 26 is screwed with a mounting screw (not shown) that is screwed into a screw hole of each boss 13. It is attached (see FIG. 1).

  The reflecting member 3 is made of a truncated cone-shaped synthetic resin molded body having an open top surface, and a reflecting surface formed by aluminum vapor deposition is formed on the surface thereof. However, the reflecting surface (circumferential surface) of the reflecting member 3 is located on the outer side of the first reflecting surface 31 connected to the bottom surface (lower surface) 30 and on the outer side of the first reflecting surface 30, and is inclined more gently than the first reflecting surface 30. And a second reflecting surface 32 (see FIGS. 1 and 3). The reflecting member 3 is provided with three recesses 33 arranged at equal intervals in the circumferential direction at the boundary between the first reflecting surface 31 and the second reflecting surface 32. A circular screw insertion hole 34 passes through the bottom surface of each recess 33 (see FIG. 3).

  The globe 4 is formed by integrally forming a bottom plate 40, a light distribution part 41, a connecting part 42, and an outer casing 43 from glass or a synthetic resin material having translucency (such as polycarbonate). The bottom plate 40 is formed in a disc shape, and a circular incident port 400 is opened at the center, and three screw insertion holes 401 are opened around the incident port 400. The light distribution part 41 is formed in a truncated cone shape with both upper and lower ends opened, and is connected to the periphery of the upper surface of the bottom plate 40 by an annular connection part 42. The outer casing 43 protrudes outward from the upper end edge of the light distribution section 41 over the entire circumference, and three rectangular notches 430 are provided at equal intervals along the circumferential direction.

  The light shielding unit 5 is formed by integrally forming a circular top plate 50 and a cylindrical peripheral wall 51 protruding downward from the periphery of the top plate 50 by aluminum die casting. At the center of the lower surface of the top plate 50, three first bosses 52 are provided so as to be arranged concentrically and at equal intervals. The first boss 52 has a cylindrical shape and is provided with a screw hole 520 opening on the lower surface. A cylindrical first protruding wall 54 projects from the lower surface of the top plate 50 so as to surround the first boss 52. Furthermore, a cylindrical second protrusion wall 55 having a height dimension larger than that of the first protrusion wall 54 is provided on the lower surface of the top plate 50 so as to surround the first protrusion wall 54. Furthermore, three second bosses 53 are provided on the lower surface of the top plate 50 between the first projecting wall 54 and the second projecting wall 55 so as to protrude concentrically and at equal intervals. The second boss 53 has a prismatic shape and is provided with a screw hole 530 opened on the lower surface.

  The reflecting member 3 is housed inside the first protruding wall 54, and is attached to the top board 50 by screwing the mounting screw 35 inserted into the screw insertion hole 34 into the screw hole 520 of the first boss 52 (FIG. 1). reference). The globe 4 is held on the top plate 50 of the light shielding unit 5 by the holding plate 44. The holding plate 44 is formed in an annular shape by a metal plate, and three screw insertion holes 440 are penetrated at equal intervals. Then, the globe 4 is housed inside the second projecting wall 55 so that the second boss 53 is inserted into the notch 430 of the outer casing 43 as shown in FIG. At this time, the packing 56 is sandwiched between the outer casing 43 and the first protruding wall 54. Then, the holding plate 44 is put on the outer casing 43 from below, the fixing screw 45 inserted into each screw insertion hole 440 is screwed into the screw hole 530 of the second boss 53, and the outer casing 43 of the globe 4 is attached to the holding plate 44. And the second projecting wall 55, the globe 4 is fixed to the light shielding portion 5. The holding plate 44 has a high reflectance by coating the lower surface with a white paint.

  Next, the structure which attaches the light-shielding part 5 to which the reflecting member 3 and the globe 4 are attached to the instrument body 1 will be described.

  As shown in FIG. 1, attachment plates 80 and 81 made of metal plates are attached to the upper surface side and the lower surface side of the bottom plate 40 of the globe 4, respectively. A mounting plate (first mounting plate) 80 on the upper surface side has a circular through hole 800 corresponding to the incident port 400 in the center, and a plurality of screw holes 801 around the through hole 800. A mounting plate (second mounting plate) 81 on the lower surface side is provided with a circular through hole 810 corresponding to the incident port 400 in the center, and a plurality of screw insertion holes 811 are provided around the through hole 810. The second mounting plate 81 is attached to the lower surface side of the top plate 110 by screwing the screw 82 inserted through the screw insertion hole 811 into the screw hole 111 provided in the top plate 110 of the instrument body 1. In the first mounting plate 80, a screw 83 inserted into a screw insertion hole 813 provided in the second mounting plate 81 and a screw insertion hole 401 provided in the bottom plate 40 of the globe 4 is screwed into the screw hole 801. Thus, the bottom plate 40 is fixed to the upper surface side.

  That is, the light-shielding part 5 is attached to the instrument body 1 by sandwiching the bottom plate 40 between the second attachment plate 81 fixed to the instrument body 1 and the first attachment plate 80 fixed to the bottom board 40 of the globe 4. It is attached. A waterproof packing 46 is sandwiched between the inner peripheral surface of the window hole 12 of the instrument body 1 and the connecting portion 42 of the globe 4, and the water (into the instrument body 1 and the globe 4 ( Rainwater) is prevented from entering.

  The lighting device 6 includes a metal case 60 that houses a power conversion circuit that converts AC power supplied from a power line 90 that is installed in the support column 9 into DC power (see FIG. 1). ). However, the case 60 is not limited to metal and may be made of synthetic resin. Further, the lighting device 6 is connected to the LED light source 20 of the LED unit 2 by an electric wire 61, and is lit by supplying DC power to the LED light source 20 through the electric wire 61. The lighting device 6 is housed in the appliance main body 1 while being supported by a metal support bracket 62 fixed to the holding bracket 26 as shown in FIG.

  Here, as shown in FIGS. 1 and 7, the lighting fixture A of the present embodiment houses the reflective member 3 inside the peripheral wall 51 of the light shielding portion 5, and between the peripheral wall 51 and the fixture body 1, the reflective member 3 forms a gap through which the light reflected (see solid arrow in FIG. 7) passes. That is, since the reflecting surfaces 31 and 32 of the reflecting member 3 housed in the light shielding part 5 are hidden by the peripheral wall 51 of the light shielding part 5, the reflecting surface is exposed to the outside as in the conventional example. Thus, unpleasant glare can be suppressed. Therefore, in the lighting fixture A of this embodiment, glare can be suppressed while ensuring the spread of light passing through the gap.

  Moreover, the lighting fixture A of this embodiment is formed in the shape where the fixture main body 1 tapers toward an opening end (upper end). Therefore, while forming a gap between the instrument body 1 and the peripheral wall 51, the outer diameter of the light shielding part 5 (the outer diameter of the peripheral wall 51) is set to be approximately the same as the outer diameter of the base part 10 of the instrument body 1, The lighting apparatus A can be reduced in size.

  Moreover, since the glove 4 which diffuses the light reflected by the reflecting member 3 is arrange | positioned inside the surrounding wall 51, the lighting fixture A of this embodiment has the uniformity of light compared with the case where the glove 4 is not provided. Can be improved. In addition, since the globe 4 is formed in a shape that increases in diameter as it moves away from the opening end (upper end) of the instrument body 1, it is possible to reduce the size in the height direction while increasing the area of the region through which light passes. .

  Furthermore, in the lighting fixture A of the present embodiment, in the mounting member (holding plate 44) for mounting the globe 4 to the top plate 50 of the light-shielding portion 5, a reflective surface (white coating) is provided on the portion (lower surface) facing the globe 4. Surface) is formed. For this reason, a part of the light that has passed through the globe 4 is reflected on the lower surface of the holding plate 44 and is radiated through the gap between the instrument main body 1 and the peripheral wall 51, so that the light utilization efficiency can be improved.

  In addition, since the outer peripheral surface of the main body part 11 of the instrument main body 1 is formed in a stepped shape, the light reflected by the outer peripheral surface through the gap between the instrument main body 1 and the peripheral wall 51 is diffused on the outer peripheral surface. Will be. As a result, the luminance of the outer peripheral surface can be reduced as compared with the case where the outer peripheral surface of the main body 11 is a smooth surface.

A lighting fixture 1 fixture body 2 LED unit 3 reflecting member 5 light-shielding portion 9 prop
12 Window hole
20 LED light source
50 Top plate
51 perimeter wall

Claims (4)

An instrument body which is formed in a cylindrical shape and is arranged with the open end facing up,
An LED light source that is housed in the instrument body and emits light toward the open end;
A reflecting member that is provided outside the instrument body and reflects the light that has passed through the opening end in a direction away from the opening end;
It is formed in a bottomed cylindrical shape with a peripheral wall protruding from the peripheral edge of the top plate, the top plate is opposed to the opening end of the instrument body, and the reflecting member is accommodated in a space surrounded by the peripheral wall and the top plate A light shielding portion disposed above the instrument body,
The outer peripheral surface of the instrument body is formed in a step shape,
A lighting fixture, wherein a gap through which the light reflected by the reflecting member passes is formed between the peripheral wall and the fixture body.   The lighting fixture according to claim 1, wherein the fixture main body is formed in a shape that tapers toward the opening end.   The glove | diffusion which diffuses the light reflected by the said reflection member is arrange | positioned inside the said surrounding wall, The said glove | globe is formed in the shape which expands as it leaves | separates from the said opening end, The shape is characterized by the above-mentioned. The luminaire described.   The lighting apparatus according to claim 3, further comprising an attachment member for attaching the globe to the top plate of the light-shielding portion, wherein the attachment member has a reflective surface at a portion facing the globe. .

Images