JP2796618B2 - Embedded external lighting fixture - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a downlight-like lighting device which is mounted on a ceiling of furniture or a building and which is also used as an embedded external device.

[0002]

2. Description of the Related Art Conventional downlight-type luminaires are classified into two types: those that are embedded only in a hole provided in a ceiling plate or the like, and those that are externally mounted in a surface of a ceiling plate or the like. Therefore, it has been selected according to the mounting location, and there has been no idea of a combination of the two. In other words, the embedded type cannot be used externally, and the external type cannot be used embedded.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and the features thereof are indicated by reference numerals in the embodiments described later. The lighting fixture of the present invention includes a tubular frame 1 having an overhanging mounting seat 6 at one end periphery, a reflector 2 with a light source that can be fitted into the tubular frame 1 from both ends by a certain depth, A light source reflector fixing bottom plate 3 which can be fitted and locked to both ends of the cylindrical frame 1; and a pair of front and rear positioning members formed inside the cylindrical frame 1 are provided on the reflector 2 with the light source. Fitting part for use (11a, 11b, 14a, 14b)
(12a, 12b, 14a, 14b) is characterized in that fitting portions (21a, 21b, 22a, 22b) which are alternatively fitted are formed.

Further, according to a preferred embodiment of the present invention, an external deep dish-shaped outer cover 4 mounted so as to cover the entirety of the cylindrical frame 1 and an overhanging attachment of the cylindrical frame 1 are provided. An embedded mounting shallow dish-shaped outer cover 5 mounted so as to cover the end on the side of the seat 6 is combined with the outer mounting covers 4, 5. An engaging portion 27 that can be fitted and locked to the engaged portion 8 formed on the peripheral edge of is formed.

[0005]

When the above-mentioned lighting fixture of the present invention is used as an external form, the reflector 2 with the light source is fitted inside the cylindrical frame 1 from the end on the side of the overhanging mounting seat 6 and at the same time, The fitting portions (21a, 21b, 22a, 22a, 22a, 22b) of the light source-equipped reflector 2 are fitted to the positioning fitting portions (11a, 11b, 14a, 14b) on the side of the frame 1 near the overhanging mounting seat 6.
22b), and the light source reflector fixing bottom plate 3 is fitted and locked to the end of the cylindrical frame 1 on the side of the overhanging mounting seat 6, so that the light source reflector 2 is attached to the cylindrical frame 1. Fix inside. At this time, the reflector 2 with the light source faces the end of the cylindrical frame 1 opposite to the end on the side of the overhanging mounting seat 6.

The tubular frame 1 incorporating the reflector 2 with the light source as described above is externally fixed to a ceiling surface or the like by using the overhanging mounting seat 6. When the external deep dish-shaped exterior cover 4 is also used, the exterior cover 4 is externally fitted so as to cover the entirety of the cylindrical frame 1 protruding from a ceiling surface or the like. The mating portion 27 is fitted and locked to the peripheral engaged portion 8 of the overhang mounting seat 6,
The exterior cover 4 may be fixed to the cylindrical frame 1.

When the lighting fixture of the present invention is used as an embedded type, the reflector 2 with the light source is fitted inside the cylindrical frame 1 from the side opposite to the side where the overhanging mounting seat 6 is provided. The positioning fitting portions (12a, 12b, 14) on the side of the cylindrical frame 1 far from the overhanging mounting seat 6.
a, 14b) at the fitting portion (21) of the reflector 2 with the light source.
a, 21b, 22a, 22b), and the light source reflector fixing bottom plate 3 is fitted and locked to the end of the cylindrical frame 1 opposite to the side where the overhanging mounting seat 6 is located. Then, the reflector 2 with the light source is fixed in the cylindrical frame 1. At this time, the reflector 2 with the light source faces the side of the tubular frame 1 where the overhanging mounting seat 6 is located.

[0008] The cylindrical frame 1 into which the reflector 2 with the light source is assembled as described above is mounted on the ceiling surface or the like.
3 and fixed to the ceiling surface or the like while the overhanging mounting seat 6 is in contact with the ceiling surface or the like. When the shallow dish-shaped exterior cover 5 for embedded mounting is also used, the exterior cover 5 is externally fitted so as to cover the end of the cylindrical frame 1 on the side where the overhanging mounting seat 6 is located, and The outer cover 5 may be fixed to the cylindrical frame 1 by fitting and locking the peripheral engaging portion 27 of the cover 5 to the peripheral engaged portion 8 of the overhanging mounting seat 6.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1A and 1B, 1 is a cylindrical frame, 2 is a reflector with a light source, and 3 is a reflector with a light source. A bottom plate 4 for fixing the body, a deep dish outer cover 4 for external attachment, and a shallow dish outer cover 5 for embedded mounting.

As shown in FIGS. 2 to 4, the cylindrical frame 1 is integrally provided with a flange-like extending mounting seat 6 projecting from the entire peripheral edge of one end thereof. Mounting holes 7 are provided at a plurality of locations in the direction. On the periphery of the overhanging mounting seat 6, a cover mounting engaged portion 8 formed in a wedge shape protruding outward in a vertical sectional shape.
Is provided.

At the inner peripheral edges of both ends of the cylindrical frame 1, there are formed bottom plate fitting recesses 9 and 10 having a depth equal to the thickness of the bottom plate 3, and are adjacent to the inside of the bottom plate fitting recesses 9 and 10, respectively. In addition, bearing recesses 11a, 11b and 12a, 12b are recessed at two locations on the inner peripheral surface of the cylindrical frame 1, and the inner peripheral surface at the center between both ends of the cylindrical frame 1 is covered with the cover. Protrusions 13a, 13b are integrally provided at positions between the fitting portions 11a, 12a and between 11b, 12b, and the cylindrical frame 1 is provided on the inner surfaces of the protrusions 13a, 13b.
Are formed in parallel with the axial direction of.

Further, the cylindrical frame 1 is formed with a plurality of (six) notched recesses 15a, 15b in the circumferential direction at the peripheral edges of both ends thereof, avoiding the positions where the projecting portions 13a, 13b are present. Therefore, the cylindrical frame 1 is configured to be vertically symmetrical in the axial direction, with the imaginary surface 16 traversing the center position between both ends thereof being a symmetrical surface, except for the overhanging mounting seat 6.

The reflector 2 with a light source is provided with a bowl-shaped reflecting surface 19 for reflecting light rays from a light bulb 18 removably mounted on a socket 17 attached thereto, at two locations in the diameter direction on the outer peripheral surface of the peripheral wall. Have protrusions 20a parallel to the axial direction.
20b are integrally protruded.
Protrusions 21a, 21b parallel to the axial direction are formed on b, and support shafts 22a, 22b projecting outward at right angles from the rear ends of both projections 20a, 20b are integrally connected.

A plurality of (three) locking pieces 23 in the circumferential direction fitted into the cylindrical frame 1 along the inner circumferential surface of the cylindrical frame 1 are provided on the bottom plate 3 for fixing the reflector with the light source. The notch recesses 15 a, 1 provided in the cylindrical frame 1 are provided at the tip of each locking piece 23.
5b, a retaining engagement claw 24 is formed which engages with a circumferential edge of the cutout recess 15a or 15b located farther from the bottom plate 3.

An external deep dish-shaped outer cover 4 shown in FIG. 1A.
And a shallow dish-shaped outer cover 5 for embedded mounting shown in FIG. 1B.
Are each provided with an illumination window (opening) 25 facing the bowl-shaped reflection surface 19 of the reflector 2 with a light source.
At the periphery of the free end of No. 6, an engaging portion 27 projecting inward in a wedge shape is formed. Further, a glass 28 can be attached to the illumination window 25 as shown in FIG. In this case, it is desirable to provide the ventilation opening 29 around the illumination window 25 or the like. Reference numeral 30 denotes a plurality of projections in the circumferential direction that can be heated and deformed inward to hold down the glass 28 when the glass 28 is fixed. The projections 30 and the ventilation openings 29 The glass 28 can be mounted as needed by providing the glass 28 in advance.

When the luminaire of the present invention configured as described above is used as an external type, as shown in FIG. A fitting portion for positioning on the side near the overhanging mounting seat 6 of the cylindrical frame 1 while being fitted inside from the side end;
That is, the fitting portion of the reflector 2 with the light source, that is, the support shaft 22a, is fitted into the bearing recesses 11a, 11b and the recess grooves 14a, 14b.
22b and the ridges 21a and 21b are fitted, and the light source reflector fixing bottom plate 3 is fitted into the bottom plate fitting recess 9 on the side of the tubular frame 1 where the overhanging mounting seat 6 is located. As shown in FIG. 4, the retaining claws 24 of the locking pieces 23 are locked in the cutout recesses 15b of the tubular frame 1 to fix the reflector 2 with the light source in the tubular frame 1. . At this time, the bowl-shaped reflecting surface 19 of the reflector 2 with the light source is
The cylindrical frame 1 faces the side opposite to the side where the overhanging mounting seat 6 is located.

As shown in FIG. 1A, the cylindrical frame 1 incorporating the reflector 2 with the light source is mounted on the ceiling plate 3 by using the mounting holes 7 of the overhanging mounting seat 6 and the wood screws 31.
2 and externally fixed to the lower surface 32a or the like. Then, the external deep dish-shaped exterior cover 4 is externally fitted so as to cover the entirety of the cylindrical frame 1, and the peripheral engagement portion 27 of the exterior cover 4 is engaged with the peripheral edge of the overhanging mounting seat 6. The exterior cover 4 may be fixed to the tubular frame 1 by fitting and locking between the portion 8 and the ceiling plate lower surface 32a.

When the above-mentioned lighting fixture of the present invention is used as an embedded type, as shown in FIG. 1B, the reflector 2 with the light source is placed in the cylindrical frame 1 on the opposite side to the side where the overhanging mounting seat 6 is located. And the cylindrical frame 1
The fitting portion of the reflector 2 with the light source, that is, the support shaft 22a, is fitted in the positioning fitting portion remote from the overhanging mounting seat 6, ie, the bearing concave portions 12a, 12b and the concave grooves 14a, 14b.
22b and the ridges 21a and 21b are fitted, and the light source reflector fixing bottom plate 3 is fitted to the bottom plate fitting recess 10 at the end opposite to the side where the overhanging mounting seat 6 of the cylindrical frame 1 is located.
At the same time, the retaining claws 24 of the locking pieces 23 are locked in the cut-out recesses 15a of the cylindrical frame 1 to fix the reflector 2 with the light source in the cylindrical frame 1. I do. At this time, the bowl-shaped reflecting surface 19 of the reflector 2 with the light source is
It faces the side of the cylindrical frame 1 where the overhang mounting seat 6 is located.

As shown in FIG. 1B, the cylindrical frame 1 incorporating the reflector 2 with the light source is provided on a ceiling plate 32 as shown in FIG. The overhanging mounting seat 6, which is fitted inside the embedding hole 33 having a diameter slightly larger than the outer diameter of the ceiling plate 32 and abuts against the lower surface 32 a of the ceiling plate 32, is attached to the mounting hole 7 and the wood screw 31.
And is fixed to the ceiling plate 32. Then, the shallow dish-shaped exterior cover 5 for embedded mounting is attached to the cylindrical frame 1.
Of the outer cover 5 and the peripheral engaging portion 8 of the outer mounting seat 6 and the ceiling plate lower surface 32a. And the exterior cover 5 may be fixed to the tubular frame 1.

In the above embodiment, a pair of front and rear positioning fitting portions provided inside the tubular frame 1 are the bearing recessed portions 11a to 12b and a concave groove which also serves as both positioning fitting portions. 14a and 14b, and the support shafts 22a and 22b and the ridge 2
Although 1a and 21b are provided, the present invention is not limited to this configuration.
That is, the grooves 14a, 14b and the ridges 2 in the above embodiment are used.
1a and 21b mean that the reflector 2 with the light source is the support shafts 22a and 2b.
For preventing rotation about the reflector 2 with a light source, for example, instead of the support shafts 22a and 22b, a non-circular non-circular cross-section and positioning protrusion is used as a fitting portion. The bearing recess 1 is provided at two locations in the diameter direction.
Instead of 1a to 12b, when forming a concave portion into which the rotation preventing and positioning projection is non-rotatably fitted inside the cylindrical frame 1 as a fitted portion, the concave grooves 14a and 14b are used.
And the ridges 21a and 21b can be omitted.

Further, a structure for fitting and locking the fixing bottom plate 3 of the reflector 2 with the light source to the cylindrical frame 1 and a peripheral edge of the outer covers 4 and 5 are provided on the projecting mounting seat 6 of the cylindrical frame 1. The shape and the like of the engaging portion 27 and the engaged portion 8 which are fitted and locked on the periphery are also
It is not limited to the above embodiment. Also, the outer cover 4,
5 is not essential to the present invention. For example, depending on the shape of the mounting tubular frame 1, the outer covers 4 and 5 can be omitted.

[0022]

As described above, in the downlight type lighting apparatus of the present invention, all of the reflector with light source, the cylindrical frame, and the bottom plate for fixing the reflector with light source are of the external type and the embedded mounting type. They can also be used externally or embedded in the ceiling or the like depending on the situation. Also, when using an exterior cover together, it is only necessary to prepare an exterior cover that requires various designs, an external one and a buried one. Help.

[Brief description of the drawings]

FIG. 1A is a schematic longitudinal sectional side view showing an externally attached state.

FIG. 1B is a schematic longitudinal sectional side view showing an embedded mounting state.

FIG. 2 is a partially longitudinal side view showing a tubular frame, a reflector with a light source, and a bottom plate for fixing the reflector with a light source in an exploded state.

FIG. 3 is a side view showing an inner main part of a cylindrical frame and an outer main part of a reflector with a light source.

FIG. 4 is a bottom view (lower side view) showing the lighting fixture body (excluding the outer cover) assembled in an external state.

FIG. 5 is a longitudinal sectional side view of a main part showing a detailed structure of an exterior cover.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Cylindrical frame, 2 ... Reflector with light source, 3 ... Bottom plate for fixing reflector with light source, 4 ... Deep dish-shaped outer cover for external attachment, 5 ... Shallow dish-shaped outer cover for embedded mounting, 6 ... Overhang mounting Seat, 7: mounting hole, 8: cover-engaged engaged portion, 9, 10: bottom plate fitting concave portion, 11a to 12b: bearing concave portion (fitted portion), 14a, 14b: concave groove (fitted portion) 15a, 15b: notched concave portion, 18: bulb, 19: bowl-shaped reflecting surface, 21a, 21b: ridge (fitting portion), 22a, 22b: support shaft (fitting portion), 23: engagement Stop piece, 24: engaging claw for retaining, 25: lighting window (opening), 27: engaging portion, 28: glass, 31: wood screw, 32: ceiling plate, 33: hole for embedding.

Claims (2)

(57) [Claims] 1. A tubular frame having an overhanging mounting seat at one end periphery, a reflector with a light source that can be fitted into the tubular frame by a predetermined depth from either end of the tubular frame, And a bottom plate for fixing the light source reflector that can be fitted and locked to the reflector with the light source. An embedded and externally-used lighting device having a fitting portion to be fitted. 2. An external deep dish-shaped outer cover which is mounted so as to cover the entirety of the cylindrical frame, and an embedded mounting which is mounted so as to cover an end of the cylindrical frame on the side of the overhanging mounting seat. The outer peripheral cover is formed with an engaging portion that can be fitted and locked to the engaged portion formed on the peripheral edge of the projecting mounting seat of the cylindrical frame. The embedded external lighting device according to claim 1, wherein the lighting device is embedded.