JP6943589B2 - lighting equipment - Google Patents

Description

The present invention relates to a lighting fixture such as a spotlight that is waterproof and can be installed outdoors.

Conventionally, in the lighting fixture of the spotlight such baffles provided for grayed rare reduced, in order to obtain the desired light distribution effect (light distribution characteristics), spread lens, lenses such as diffusion lens options, such as a color filter A technology has been proposed that allows it to be incorporated. Especially for spotlights used outdoors, various measures have been taken because it is necessary to adopt a structure in which options such as lenses can be securely attached and detached while ensuring waterproofness and high strength.

For example, in the spotlight shown in Patent Document 1 below, an annular hood is attached to the front end opening of a cylindrical shade, and a rubber annular frame member is fitted in the hood. Further on the inner peripheral surface of the annular frame member, a baffle for grayed rare reduction, an inner peripheral groove which is arranged along the circumferential direction is formed. Then, the filter is attached to the annular frame member by fitting the outer peripheral edge portion of the optional circular filter into the inner peripheral groove.

Further, in the spotlight shown in Patent Document 2, a reflector is attached to the front of the light source unit inside the cylindrical shade, and a baffle member having a baffle function is attached to the front of the reflector. An optional lens is then mounted in the shade by sandwiching its outer peripheral edge between the reflector and the baffle member.

JP-A-2015-130232 JP-A-2017-27899

However, since the lighting fixture shown in Patent Document 1 is provided with a baffle and an inner peripheral groove for mounting a filter on the inner peripheral surface of the annular frame member in the hood, the optical axis in the region (baffle functioning portion) that functions as the baffle. dimension is shortened, there is a problem that it is difficult to obtain sufficient baffles function can be reliably suppressed grayed rare.

Further, in the spotlight shown in Patent Document 2, since an optical member such as a lens is attached between the baffle member and the reflector, it is necessary to separately form a special structure for attaching the lens between the baffle member and the reflector. Therefore, there was a problem that the structure became complicated.

The present invention has been made in view of the above problems, and options such as a lens can be easily and surely attached / detached, a sufficient baffle function can be obtained, and the structure can be simplified. It is an object of the present invention to provide lighting equipment such as a waterproof spotlight for outdoor use.

In order to solve the above problems, the present invention provides the following means.

[1] The light source is provided with a shade having an opening at the front end, a light source installed in the shade, and a front cover that is detachably attached to the front end opening of the shade in a watertight state and has a translucent portion. A luminaire in which the illumination light emitted from the shade is radiated forward through the optical path in the shade and the translucent portion.
An inner cylinder member that can enter and exit the shade through the front end opening is detachably attached to the shade so as to cover the outer periphery of the optical path.
The inner cylinder member integrally has a baffle function portion provided on the front side portion thereof and an optional mounting portion provided behind the baffle function portion and having elasticity.
With baffle for grayed rare reduced is provided on the inner peripheral surface of the baffle functional unit within said cylinder member, an inner peripheral groove provided in the circumferential direction on the inner peripheral surface of the option attachment portion,
An option of the optical system is a luminaire whose outer peripheral edge portion is elastically fitted in the inner peripheral groove so as to be attached to the inner cylinder member.

[2] The lighting fixture according to item 1 above, wherein a plurality of inner peripheral grooves are provided in the option mounting portion at intervals in the front-rear direction, and options can be mounted on the plurality of inner peripheral grooves.

[3] A flange-shaped packing is integrally provided on the outer peripheral edge of the front end of the inner cylinder member so as to project outward.
The illumination according to item 1 or 2 above, wherein the packing is sandwiched between the front end opening edge of the shade and the outer peripheral edge of the front cover so that the shade and the front cover are watertight. Equipment.

[4] The lighting fixture according to any one of items 1 to 3 above, wherein the option is composed of a lens.

According to the luminaire of the invention [1], the inner cylinder member provided with the baffle function portion and the option mounting portion is attached to the shade so as to be freely moved in and out. Options can be attached and detached, and options can be easily and reliably attached and detached. Further, since the inner cylinder member is housed in the shade, the baffle function portion of the inner cylinder member can be provided in a wide range, and a sufficient baffle function can be obtained. Further, since the option mounting portion is integrally provided with the inner cylinder member, it is not necessary to separately adopt a means dedicated to the option mounting, and the number of parts and the like can be reduced accordingly, and the structure can be simplified.

According to the lighting fixture of the invention [2], since a plurality of inner peripheral grooves for mounting options are formed on the inner cylinder member, different types of options can be mounted on each inner peripheral groove, which is excellent due to the option mounting. The light distribution effect can be obtained synergistically.

According to the luminaire of the invention [3], a packing is integrally provided on the inner cylinder member, and the packing is used to ensure watertightness between the front cover and the front end of the shade. Therefore, the watertightness between the front cover and the front end of the shade is maintained. It is not necessary to separately assemble packings and the like for planning, the number of parts can be further reduced, and the structure can be simplified more reliably.

According to the luminaire of the invention [4], the lens can be securely attached as an option.

FIG. 1 is a perspective view showing a lighting fixture according to an embodiment of the present invention. FIG. 2 is a front view showing the lighting fixture of the embodiment. FIG. 3 is a cross-sectional view taken along the line AA of FIG. FIG. 4 is a cross-sectional view taken along the line BB of FIG. FIG. 5 is a cross-sectional view showing the luminaire of the embodiment in an exploded manner. FIG. 6 is a cross-sectional view showing a main part of the lighting fixture of the embodiment in an exploded manner.

1 is a perspective view showing a lighting fixture according to an embodiment of the present invention, FIG. 2 is a front view, FIG. 3 is a sectional view taken along line AA of FIG. 2, and FIG. 4 is a sectional view taken along line BB of FIG. 5 is an exploded cross-sectional view, and FIG. 6 is an exploded perspective view of a main part.

As shown in these figures, the luminaire of the present embodiment constitutes a waterproof outdoor spotlight. In the present embodiment, in order to facilitate understanding of the invention, the direction of irradiating the illumination light (the left side direction of FIGS. 3 and 4) is set to "forward", and the opposite direction (right direction of FIGS. 3 and 4) is set. ) Is described as "backward".

As shown in FIGS. 1 to 6, the luminaire of the present embodiment includes a shade 1, a light source unit 5, an inner cylinder member 6, a front cover 7, and an electrode unit 8 as basic components. There is.

The shade 1 is also called a cylinder or the like and is formed in a cylindrical shape. In the present embodiment, the shade 1 is composed of a front outer cylinder 2 constituting the first half thereof and a rear outer cylinder 3 forming the second half thereof. Both the front outer cylinder 2 and the rear outer cylinder 3 are made of a die-cast aluminum alloy integrally molded product.

The front outer cylinder 2 is formed in a cylindrical shape with both front and rear ends open, and in the present embodiment, the front end opening (front end opening) of the front outer cylinder 2 is configured as the front end opening of the shade 1. It is a thing.

As shown in FIGS. 3 and 5, on the inner peripheral surface of the front outer cylinder 2, a plurality of screwing portions 21 are inside (at equal intervals in the circumferential direction) at substantially the middle portion in the axial direction (front-rear direction). It is integrally formed so as to protrude in the inner diameter direction). Further, an inward flange 22 continuous in the circumferential direction is integrally formed at the front end portion on the inner peripheral surface of the screwed portion 21.

Further, as shown in FIG. 4, a plurality of screwing portions 23 are integrally formed at the rear end of the inner peripheral surface of the front outer cylinder 2 so as to project inward at equal intervals in the circumferential direction.

Inside the front outer cylinder 2, the rear side of the screwed portion 21 is configured as a light source unit mounting portion 25 for mounting the light source unit 5.

Further, as shown in FIGS. 3 and 5, in the region from the front end to the inward flange 22 on the inner peripheral surface of the front outer cylinder 2, a plurality of screwed portions 24 project inward at equal intervals in the circumferential direction. It is formed integrally like this.

The rear outer cylinder 3 is formed in a rear end closed cylindrical shape with the front end open and the rear end closed. As shown in FIG. 5, on the inner peripheral surface of the rear outer cylinder 3, a plurality of screwed portions 33 project inward corresponding to the plurality of screwed portions 23 of the front outer cylinder 2, respectively. It is integrally formed so as to extend continuously in the axial direction (front-back direction).

Further, a support arm 31 is integrally formed on the outer peripheral surface of the rear outer cylinder 3 so as to project in the outer diameter direction.

The light source unit 5 attached to the light source unit mounting portion 25 is composed of an LED unit. The light source unit 5 includes a holder 50, a light source 55 composed of a semiconductor light emitting element such as an LED (Light Emitting Diode), and a lens 56.

Like the front outer cylinder 2 and the rear outer cylinder, the holder 50 is made of a die-cast aluminum alloy integrally molded product, and has a rear end closed cylindrical shape in which the front end is opened and the rear end is closed. It is formed in a (cup shape) shape. A flange 51 is integrally formed at the front end opening edge of the holder 50 so as to project outward corresponding to the screwed portion 21 of the front outer cylinder 2. Further, a light source 55 is attached to the bottom surface of the holder 50.

The lens 56 is formed on the outer peripheral edge of the front end so that the flange 57 projects outward (outer diameter direction) corresponding to the inward flange 22 of the front outer cylinder 2. Further, a packing (gasket) 58 having a U-shaped cross section is mounted on the flange 57 over the entire circumference thereof.

Then, the lens 56 and the holder 50 with a light source are fixed to the front outer cylinder 2 by screwing. That is, as shown in FIGS. 3 and 5, the flange 57 of the lens 56 is brought into contact with the rear surface of the inward flange 22 inside the front outer cylinder 2, and the flange 51 of the holder 50 is screwed to the front outer cylinder 2. In a state of being in contact with the rear surface of the flange 57 of the lens 56 and the lens 56, the screw 59 is passed through the flange 51 of the holder 50 and screwed into the screw fastening portion 21 of the front outer cylinder 2 to fix the screw 59. As a result, the light source 55 is arranged on the axial center of the front outer cylinder 2 via the holder 50, the outer peripheral edge of the lens 56 is sandwiched between the flanges 22 and 51, and the lens 56 is placed on the front outer cylinder 2. It is arranged in front of the light source 55 on the axis of.

In this way, the rear outer cylinder 3 is attached to the front outer cylinder 2 to which the light source unit 5 is attached, and the shade 1 is formed. That is, as shown in FIG. 4, the rear end opening edge portion of the front outer cylinder 2 is associated with the screw fastening portion 23 of the rear end of the front outer cylinder 2 and the screw fastening portion 33 of the rear outer cylinder 3. With the front end opening edge of the rear outer cylinder 3 in contact with the packing (gasket) 35, the screw 36 is passed through the screw fastening portion 23 of the front outer cylinder 2 to penetrate the rear outer cylinder 3 It is screwed into the screw fastening portion 33 of the above and fixed. As a result, both the front and rear outer cylinders 2 and 3 are connected in a state where their axes are aligned with each other, and the shade 1 is assembled.

In this assembled state, the packing 35 interposed between the front and rear outer cylinders 2 and 3 ensures that the front and rear outer cylinders 2 and 3 are watertight.

In this embodiment, the space inside the shade 1 in front of the light source unit 5 is configured as an optical path. Further, the electrode unit 8 is housed in the rear outer cylinder 3.

On the other hand, the inner cylinder member 6 is arranged in the front outer cylinder 2 of the shade 1. The inner cylinder member 6 is formed in a cylindrical shape with both ends open. Further, a flange-shaped packing (gasket) 65 is integrally formed on the outer peripheral edge of the front end of the inner cylinder member 6 so as to project outward.

In the present embodiment, the inner cylinder member 6 with packing is made of an integrally molded black synthetic rubber having elasticity or flexibility.

The portion from the front side portion to the intermediate portion of the inner cylinder member 6 is configured as a baffle function portion 61, and the rear side portion is configured as an option mounting portion 63.

The inner peripheral surface of the baffle function unit 61, a baffle 62 for grayed rare reduction is formed. In the present embodiment, the baffle 62 is composed of convex portions and concave portions that are continuous in the circumferential direction and are formed alternately along the axial direction at a fine pitch. In still present invention, the configuration of the baffle 63 is not limited in particular, can be employed in any configuration as long as the configuration can reduce the grayed Rare (shape).

On the inner peripheral surface of the option mounting portion 63 of the inner cylinder member 6, two inner peripheral grooves 64 which are continuous in the circumferential direction and are formed over the entire circumference are formed at intervals in the axial direction.

In the present embodiment, the outer diameter dimension of the inner cylinder member 6 is formed smaller than the inner diameter dimension of the front end opening of the shade 1, and the outer diameter dimension of the packing 65 integrally molded with the inner cylinder member 6 is the shade 1. It is formed larger than the inner diameter of the front end opening. Therefore, the inner cylinder member 6 is configured to be freely accessible to and from the inside of the shade 1 through the front end opening, and when the inner cylinder member 6 is inserted into the shade 1, the packing 65 is placed on the front end surface of the shade 1. It is configured to abut and lock the front end opening peripheral edge).

Further, in the present embodiment, the inner peripheral grooves 64 and 64 of the inner cylinder member 6 require options of an optical system such as a lens 4 such as a spread lens and a diffusion lens, a filter such as a color filter, and a louver such as a honeycomb louver. It is configured so that it can be attached according to each. For example, when an option such as a lens 4 is attached to the inner cylinder member 6, an optional lens is provided inside the option attachment portion 63 in a state where the option attachment portion 63 of the inner cylinder member 6 is elastically deformed so as to increase the diameter. (Optional lens) 4 is accommodated, and the outer peripheral edge portion of the optional lens 4 is fitted into the inner peripheral groove 64 of the option mounting portion 63. After that, by releasing the elastic deformation of the inner cylinder member 6, the outer peripheral edge portion of the option lens 4 is held in the inner peripheral groove 64 by an elastic force, and the option lens 4 is attached to a predetermined position in the inner cylinder member 6. When removing the option lens 4 mounted in the inner cylinder member 6, the option mounting portion 63 of the inner cylinder member 6 is elastically deformed so as to expand the diameter, and the outer peripheral edge portion of the option lens 4 is elastically deformed from the inner peripheral groove 64. While pulling out, the option lens 4 may be taken out from the option mounting portion 63 to the outside. In this way, options such as the option lens 4 can be easily and surely attached to and detached from the inner cylinder member 6.

Needless to say, options other than the lens can be attached to and detached from the inner cylinder member 6 in the same manner as the option lens 4.

On the other hand, the front cover 7 attached to the circular front end opening in the shade 1 includes an annular frame 71. Inside the frame of the frame body 71, a transparent protective plate 72 made of a transparent glass plate or the like is attached in a watertight state via a silicon-based adhesive or the like. In the present embodiment, the transparent protective plate 72 is configured as a light-transmitting portion, and the frame body 71 is configured as an outer peripheral edge portion of the front cover 7.

Further, the outer peripheral wall 75 is integrally formed on the outer peripheral edge of the frame 71 so as to project rearward over the entire circumference thereof. The outer diameter of the outer peripheral wall 75 is formed to be slightly larger than the outer diameter of the front end portion of the shade 1, and is configured so that it can be fitted to the front end portion of the shade 1 in a conforming state.

In the present embodiment, the frame body 71 and the outer peripheral wall 75 are made of a die-cast aluminum alloy integrally molded product.

The front cover 7 is attached to the shade 1 via the inner cylinder member 6. That is, the inner cylinder member 6 is housed in the shade 1 from the front end opening and arranged on the front side in the shade 1, and the rear end edge of the inner cylinder member 6 is fitted into the inward flange 22 in the front outer cylinder body 2. At the same time, the packing 65 of the inner cylinder member 6 is arranged so as to be locked to the front end surface (front end opening edge) of the shade 1. Further, the front cover 7 is fitted so that the outer peripheral wall 75 thereof is fitted to the outside of the front end portion of the shade 1, and the frame body 71 is arranged so as to be along the packing 65 of the inner cylinder member 6. In this state, the screw 76 is passed through the frame body 71 of the front cover 7 and the packing 65 of the inner cylinder member 6 and screwed into the screw fastening portion 24 of the shade 1 to fix the screw 76. As a result, the front cover 7 is fixed to the shade 1 via the packing 65, and the packing 65 is sandwiched between the front cover 7 and the front end surface of the shade 1, so that the inner cylinder member 6 is inside the shade 1. The position is fixed with. In this mounted state, the packing 65 interposed between the front cover 7 and the shade 1 ensures that the front cover 7 and the shade 1 are watertight.

In the lighting fixture of the present embodiment configured as described above, as shown in FIGS. 1 and 2, the support arm 31 provided on the rear outer cylinder 3 of the shade 1 is installed on the installation surface via the base 10. Attached to. That is, the base 10 mounted on the installation surface is provided with the support arm mounting piece 11 rotatably around the axis of the base 10 (the axis perpendicular to the installation surface), and the support arm mounting piece 11 is shaded. The support arm 31 of 1 is rotatably attached around an axis orthogonal to the support arm 31 (around an axis parallel to the installation surface). In this way, the luminaire is appropriately attached to an installation surface such as a downward horizontal surface such as a ceiling surface, a vertical surface such as a wall surface, an upward horizontal surface such as a road surface, a floor surface, or a pedestal surface, an inclined surface, a support column, or the like.

In the luminaire of the present embodiment, when an option such as a lens 4 is attached, the screw 76 on the front end surface of the luminaire is removed, the front cover 7 is removed from the shade 1, and then the inner cylinder member 6 is removed from the shade 1. Take out to the outside through the front end opening. In the state where the inner cylinder member 6 is taken out to the outside in this way, the option lens 4 is fitted and attached into the inner peripheral groove 64 while elastically deforming the inner cylinder member 6 as described above. After that, the inner cylinder member 6 with an optional lens is inserted into the shade 1 from the front end opening and arranged, and then the front cover 7 is screwed as described above, and the inner cylinder member 6 is inserted into the shade 1 via the packing 65. Fix inside. As a result, the option lens 4 can be arranged on the optical path (axis center) in the shade 1.

Therefore, in the luminaire in this state, the illumination light emitted from the light source 55 passes through the lens 56 of the light source unit 5, passes through the option lens 4, passes through the transparent protective plate 72 of the front cover 7, and is irradiated forward. .. Since the illumination light passes through the option lens 4 and is irradiated forward in this way, the desired light distribution effect by the option lens 4 can be surely obtained.

When removing the option lens 4, the front cover 7 may be removed from the shade 1, the inner cylinder member 6 may be taken out, and then the option lens 4 may be removed as described above.

In the lighting fixture of the present embodiment configured as described above, since the inner cylinder member 6 is provided so as to be freely accessible to and from the shade 1, and the baffle function portion 61 is formed in the inner cylinder member 6, the shade 1 is formed. the baffle function unit 61 can be widely formed within, it is possible to sufficiently secure the baffle functions such as grayed rare inhibiting effect.

Further, since the option mounting portion 63 is integrally formed with the inner cylinder member 6 and options such as the lens 4 are mounted on the option mounting portion 63 as needed, it is not necessary to separately provide a means for mounting the option. As a result, the number of parts can be reduced and the structure can be simplified, and the number of parts to be assembled can be reduced to improve the workability of assembly.

Further, in the lighting fixture of the present embodiment, a packing 65 is integrally formed on the outer periphery of the front end of the inner cylinder member 6, and the packing 65 is interposed between the front cover 7 and the front end of the shade so as to achieve watertightness between them. Therefore, it is not necessary to separately assemble the front cover 7 and packing for watertightness between the front ends of the shade. In this respect as well, the number of parts can be reduced, the structure can be simplified more reliably, and the assembly can be performed. The number of parts can be reduced and the assembly workability can be further improved.

Further, in the present embodiment, since the inner cylinder member 6 with packing is made of an integrally molded product of synthetic rubber, the inner cylinder member 6 with packing can be efficiently manufactured, and the cost can be reduced.

Further, in the lighting device of the present embodiment, as described above, since the options such as the lens 4 can be easily taken out, the cleaning work and maintenance / inspection work of the options can be surely performed without any trouble, and by extension, the lighting device itself. Durability can be improved.

Further, in the lighting fixture of the present embodiment, since the inner cylinder member 6 is formed with two inner peripheral grooves 64 for mounting options, the options can be mounted on the inner peripheral grooves 64 and 64, respectively. Therefore, two different types of options can be installed at the same time, and an excellent light distribution effect due to the option installation can be synergistically obtained.

In the above embodiment, a cylindrical shade 1 is used, but the shape of the shade is not particularly limited in the present invention. For example, as the shade, a square cylinder or an elliptical cylinder may be adopted.

Further, in the above embodiment, the case where the shade 1 having a constant outer diameter is used from the front end to the rear end is described as an example, but in the present invention, the outer diameter of the shade may be partially changed. good. For example, the shade may be formed in a trumpet shape or a truncated cone shape so that the front outer diameter of the shade gradually becomes larger than the rear outer diameter.

Further, in the above embodiment, a cylindrical inner cylinder member 6 is adopted, but in the present invention, the shape of the inner cylinder member 6 is not limited to the above, and is matched to, for example, the shape of a shade. It may be formed in a square cylinder shape or an elliptical cylinder shape, or the front side portion may be formed in a trumpet shape or a tapered shape (conical cone shape).

Further, the lighting fixture of the present invention is not limited to the outdoors, and may be installed indoors.

Further, in the above embodiment, the case where two inner peripheral grooves 64 for optional mounting are formed in the inner cylinder member 6 has been described as an example, but the number of inner peripheral grooves formed in the inner cylinder member is limited. Instead, in the present invention, one or three or more inner peripheral grooves may be formed in the inner cylinder member.

The luminaire of the present invention can be suitably used as a waterproof spotlight or the like that can be installed outdoors.

1: Sade 4: Lens (optional)
55: Light source (LED)
6: Inner cylinder member 61: Baffle function part 62: Baffle 63: Optional mounting part 64: Inner peripheral groove 65: Packing (gasket)
7: Front cover 72: Transparent protective plate (transparent part)

Claims (3)

A shade having an opening at the front end, a light source installed in the shade, and a front cover detachably attached to the front end opening of the shade in a watertight state and having a translucent portion, and emitted from the light source. A luminaire in which illumination light is emitted forward through an optical path in the shade and the translucent portion.
An inner cylinder member that can enter and exit the shade through the front end opening is detachably attached to the shade so as to cover the outer periphery of the optical path.
The inner cylinder member integrally has a baffle function portion provided on the front side portion thereof and an optional mounting portion provided behind the baffle function portion and having elasticity.
A baffle for reducing glare is provided on the inner peripheral surface of the baffle function portion of the inner cylinder member, and an inner peripheral groove is provided along the circumferential direction on the inner peripheral surface of the option mounting portion.
The option of the optical system is configured so that the outer peripheral edge portion is elastically fitted in the inner peripheral groove and can be attached to the inner cylinder member .
A flange-shaped packing is integrally provided on the outer peripheral edge of the front end of the inner cylinder member so as to project outward, and the inner cylinder member with the flange is made of an integrally molded synthetic rubber product.
A luminaire characterized in that the packing is sandwiched between the front end opening edge portion of the shade and the outer peripheral edge portion of the front cover so that the shade and the front cover are watertight. The lighting fixture according to claim 1, wherein a plurality of the inner peripheral grooves are provided at intervals in the front-rear direction in the option mounting portion, and options can be mounted on the plurality of inner peripheral grooves. The luminaire according to claim 1 or 2 , wherein the option comprises a lens.

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