JPH09237515A - Recessed luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cover a lower end of an appliance main body with a permeable panel so as to make external appearance more attractive, by improving operability of mounting/demounting while decreasing the number of part items. SOLUTION: In a recessed luminaire having an appliance main body 1 provided with an outer flange 1c in the peripheral end of an opening 1a in a lower surface side and a permeable panel 3 arranged in a side of the opening 1a of the appliance main body 1 to be mounted in a burying hole 7a of a ceiling 7 by bringing the outer flange 1c of the appliance main body 1 into contact with a lower surface of the ceiling 7, a ceiling contact piece 1k, bringing a tip end into contact with a lower surface of the ceiling 7 to make a horizontal surface 1h of the outer flange 1c separate from a lower surface of the ceiling y with a prescribed space apart, is vertically provided in a peripheral end of the outer flange 1c of the equipment main unit 1. A plurality of lock holes 1g of a lock part 1f are provided in the horizontal surface 1h of the outer flange 1c, an engaging protruded piece 3d of an upward protruded engaging part 3c is provided in the vicinity of a peripheral end of the permeable panel 3, the engaging protruded piece 3d is insertion locked to the lock hole 1g, the permeable panel 3 is mounted in the appliance main body 1, also a lower surface side of the opening 1a and the outer flange 1c is covered with the permeable panel 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embedded luminaire, and more particularly to an embedded luminaire in which a translucent panel is mounted on the lower surface side.

[0002]

2. Description of the Related Art FIG. 13 shows a conventional embedded luminaire (first
This is a conventional example of the embedded lighting fixture.
The instrument main body 1, the frame 2, and the translucent panel 3 are provided.

The instrument main body 1 is formed in a substantially cylindrical shape with an opening 1a at the lower side, and is at the lower end of the side wall 1b, which is the opening 1a.
An outer collar 1c is formed at the peripheral edge of a. Also, the side wall 1
Inside the b, a pair of support spring engaging portions 1d for holding the frame body 2 on the instrument main body 1 are provided on the inner surface side, and a mounting spring (not shown) slides vertically on the side wall 1b. A pair of slits 1e is provided. Then, the outer collar 1c is inserted into an embedding hole provided in the ceiling so as to abut on the lower surface of the ceiling, and is attached so that the ceiling is sandwiched between the outer collar 1c and the mounting spring.

The frame body 2 is formed in a substantially annular shape, and a pair of support springs 4 are arranged so as to oppose each other at both ends with the center interposed therebetween.
Is provided, and the substantially disk-shaped light-transmitting panel 3 is held inside the annular shape. Then, the support spring 4 is engaged with the support spring engaging portion 1d of the instrument main body 1 and pushed up, so that the transparent panel 3 is mounted so as to be held on the opening 1a side of the instrument main body 1. Further, since the frame body 2 needs to be removed from the device body 1 when the lamp housed inside the device body 1 is replaced, the frame body 2
By pulling down and pressing the support spring 4 from both sides to remove it from the support spring engaging portion 1d.

FIG. 14 shows another conventional embedded luminaire (second conventional example) disclosed in Japanese Utility Model Laid-Open No. 6-9004, and is different from the first conventional example. , The frame body is removed, and the translucent panel 3 is used without using the frame body.
The other points are the same as those of the first conventional example, except that they are mounted on the first conventional example.

The translucent panel 3 has an outer diameter larger than the outer diameter of the outer collar 1c of the instrument body 1, and is tubular inside the opening 1a of the instrument body 1 inside its peripheral edge. A peripheral groove 3b having a portion 3a and formed on the outer periphery of the tubular portion 3a.
The support spring 4 is locked via the spring mounting portion 4a. The translucent panel 3 has a tubular portion 3a.
The reflection plate 5 is placed on the support plate 4, and the support spring 4 is engaged with the support spring engagement portion 1d of the device body 1 and pushed up, so that the transparent panel 3 opens the opening 1a of the device body 1 and the outer collar 1 in the transparent panel 3.
It is attached so as to substantially cover the lower surface side of c. In the figure, reference numeral 1c1 indicates a protective member for covering the outer collar 1c of the instrument body 1.

FIG. 15 shows a mounting structure of the translucent panel 3 in a conventional hanging type lighting fixture, in which a plurality of locking portions 1f, which are locking holes 1g, are provided on the lower surface of the device body 1.
An engaging projection 3d, which is an engaging portion 3c provided on the translucent panel 3 arranged so as to cover the lower surface side of the lamp 6, is inserted into the engaging hole 1g and rotationally locked. .

[0008]

However, in the embedded luminaire shown in the first conventional example having such a configuration, the side wall 1b of the luminaire main body 1 is for mounting the luminaire main body 1 on the ceiling. In addition to the two slits 1e for mounting springs, it is necessary to provide two support spring engaging portions 1d for mounting the frame body 2, which are required in the circumferential direction of the instrument body 1 to form them. In consideration of the strength of the instrument body 1, the area of the instrument body becomes large, and the instrument body 1 is inevitably in a tubular shape. Further, in order to mount the translucent panel 3, a frame body 2, a support spring 4, etc. are required. However, the number of parts including the parts to be attached is increased, and the frame 2 is exposed to the lower surface of the ceiling to impair the sense of unity with the ceiling, resulting in a poor appearance.

Also in the embedded lighting fixture shown in the second conventional example, the side wall 1b of the fixture main body 1 has a frame body other than the slits 1e for mounting springs for attaching the fixture main body 1 to the ceiling. It is necessary to provide a support spring engaging portion 1d for attaching the device 2, and in consideration of the strength of the device body 1, the device body 1 is inevitably in a substantially cylindrical shape, and the translucent panel 3
The frame 2 and the support spring 4 are required to mount the device, and the number of parts including the parts to be mounted increases, and the support spring 4 is located inside the outer peripheral edge of the translucent panel 3. However, there is a problem in that the operability of attaching and detaching the translucent panel 3 is poor because it is provided in the.

Further, the mounting structure of the translucent panel 3 in the conventional hanging type lighting fixture has a locking portion 1f of the fixture body 1.
It is a structure that can be taken because it is not necessary to abut the portion where the housing is provided with the ceiling, and this structure is a conventional embedded type having a structure in which the outer collar 1c that is the lower surface of the instrument body 1 is attached to the ceiling. It could not be used for lighting equipment.

The present invention has been made in view of the above problems, and an object of the present invention is to reduce the number of parts and to improve the operability of attachment / detachment. (EN) Provided is an embedded luminaire with improved lighting.

[0012]

In order to solve the above-mentioned problems, the present invention provides an invention according to claim 1 in which an outer flange 1c is provided on the lower surface side and around the opening 1a. And a light-transmitting panel 3 disposed on the side of the opening 1a of the instrument body 1, and the outer collar 1c of the instrument body 1 is provided on the ceiling 7 so as to abut against the lower surface of the ceiling 7. In the embedded lighting fixture inserted into the embedded hole 7a and attached, the translucent panel 3 is provided with an engaging portion 3c, and the engaging portion 3c is engaged with an engaging portion 1f provided on the outer collar 1c. Then, the translucent panel 3 is attached to the instrument body 1,
The transparent panel 3 covers the lower surface side of the opening 1a and the outer collar 1c.

According to the second aspect of the present invention, the first aspect is provided.
In the embedded lighting fixture described above, a ceiling is provided at the outer peripheral end of the outer collar 1c of the fixture main body 1 so that the tip contacts the lower surface of the ceiling 7 and the horizontal surface 1h of the outer collar 1c is separated from the lower surface of the ceiling 7 by a predetermined distance. The contact piece 1k is erected, and the horizontal surface 1h of the outer collar 1c
A plurality of locking holes 1g are provided at a predetermined pitch in the base plate, and the locking holes 1g are used as the locking portions 1f. It is characterized in that an engaging protrusion 3d, which is an engaging portion 3c to be inserted and locked, is provided.

According to the third aspect of the present invention, there is provided the second aspect.
In the embedded lighting fixture described above, the locking hole 1g is configured such that a wide portion 1g1 and a narrow portion 1g2 are formed to communicate with each other along the circumferential direction of the outer collar 1c, and the engaging protrusion of the translucent panel 3 is formed. The width dimension of the piece 3d in the direction substantially perpendicular to the circumferential direction of the translucent panel 3 is smaller than that of the narrow portion 1g2 so that the narrow portion 1g2.
A base portion 3d1 that can move inside, and a width dimension that is formed above the base portion 3d1 and has a width dimension smaller than the wide portion 1g1 and larger than the narrow portion 1g2 and the wide portion 1g.
1 is inserted into the locking hole 1g from below and the outer collar 1c is inserted.
And a head 3d2 movably formed above the horizontal portion 1g2 above the narrow portion 1g2.
The head portion 3d2 of d is inserted into the wide portion 1g1 of the locking hole 1g, and then the translucent panel 3 is rotated to engage with the narrow portion 1g2 of the locking hole 1g. It is a thing.

According to a fourth aspect of the invention, in the embedded luminaire according to the second or third aspect, the upper surface of the translucent panel 3 is located above the engaging projection 3d. It is characterized in that it is provided with a positioning portion 3h which projects and abuts against the instrument body 1 to position the instrument body 1.

According to the invention described in claim 5, claim 1 is provided.
In the embedded lighting fixture described above, a ceiling contact piece 1k whose tip abuts the lower surface of the ceiling 7 is provided upright on the outer peripheral edge of the outer collar 1c of the equipment body 1, and the ceiling contact piece 1k is circumferentially arranged. The engaging portion 1f is formed along with, and the engaging portion 3c of the translucent panel 3 is engaged with the engaging portion 1f.

According to the sixth aspect of the present invention, in the fifth aspect,
In the embedded lighting fixture described above, the locking portion 1f is a substantially inverted L-shaped locking hole 1g opening at a lower end of the ceiling contact piece 1k, and the engaging portion 3c is the translucent light. A projecting piece 3f which is provided substantially horizontally from the outer peripheral side of the panel 3 toward the center so as to have a gap 3e with respect to the inner lower surface of the translucent panel 3.
It is characterized by being.

According to a seventh aspect of the present invention, in the embedded lighting fixture according to the third aspect, the fourth aspect, or the sixth aspect, the translucent panel is provided on the inner side of the locking portion 1f. In the regular mounting state of No. 3, the engaging portion 3c is urged in the engaging operation direction, and in the incomplete mounting state, the engaging portion 3c.
It is characterized in that a spring body 8 is provided for urging the lever in the detaching operation direction.

According to the invention of claim 8, claim 5
In the embedded lighting fixture described, the engaging portion 1f provided on the outer collar 1c of the fixture body 1 and the engaging portion 3 of the transparent panel 3 are provided.
c is formed in a screw shape so as to be screwed together.

According to the invention of claim 9, claim 5
In the embedded lighting fixture described above, the engaging portion 3c projects substantially horizontally from the outer peripheral side of the translucent panel 3 toward the substantially center so as to have a gap 3e with respect to the inner lower surface of the translucent panel 3. The projecting piece 3f is provided, and the projecting piece 3f is locked to the locking portion 1f by elastically deforming the translucent panel 3.

[0021]

1 to 5 show a first embodiment of an implantable lighting device according to the present invention. The embedded lighting device comprises a device main body 1 and a light-transmitting member. The panel 3, the reflection plate 5, and the mounting spring 9 are provided.

The instrument main body 1 is constructed by fixing a substantially annular frame-shaped body 1n to the tip of a yoke main body 1m formed in a substantially U-shape, and the annular frame-shaped body 1n is provided on the ceiling 7 as a lower side. It is attached, and the inside of the frame-shaped body 1n serves as an opening 1a at the lower end of the instrument body 1. Further, an outer collar 1c formed of a part of the frame-shaped body 1n is provided at the peripheral edge of the opening 1a, and the outer collar 1c extends horizontally from the peripheral edge of the opening 1a to a horizontal plane 1h. And a ceiling abutment piece 1k protruding upward from the outer peripheral end of the ceiling abuts against the lower surface of the ceiling 7 to separate the horizontal surface 1h from the lower surface of the ceiling 7 at a predetermined distance. Thus, a plurality of locking portions 1f are formed on the horizontal surface 1h. The locking portion 1f is a locking hole 1g provided in the horizontal surface 1h, and has a wide portion 1g1 having a wide width in a direction substantially perpendicular to the circumferential direction of the outer collar 1c and a narrow width having a narrow width. The portion 1g2 is formed so as to communicate with the circumferential direction. In addition, the yoke body 1m
A pair of mounting springs 9 are provided on the.

The translucent panel 3 is formed of a translucent member such as acrylic resin in a substantially disc shape, and its outer diameter is larger than the outer diameter of the outer collar 1c provided on the instrument body 1. Has been formed. Further, the vicinity of the peripheral end portion is formed so as to protrude toward the upper surface side, and an engaging portion 3c protruding upward is provided inside the peripheral end portion. This engagement part 3
Reference numeral c is an engaging projection 3d that is inserted and locked in the locking hole 1g, and has a width dimension smaller than that of the narrow portion 1g2.
a base portion 3d1 movable in the narrow portion 1g2 of g, and formed on the upper side of the base portion 3d1 so that the width dimension is smaller than the wide portion 1g1 and larger than the narrow portion 1g2 and from below the wide portion 1g1. Outer collar 1c inserted into the locking hole 1g
Is formed so as to be movable above the narrow portion 1g2 above the horizontal plane 1h, and includes a head 3d2 that is locked to the narrow portion 1g2 side of the locking hole 1g.

Incidentally, as shown in FIG. 1, the head portion 3d2 of the engaging projection piece 3d provided on the translucent panel 3 protrudes from the base portion 3d1 only in the center side of the translucent panel 3 in the width direction thereof. Alternatively, as shown in FIG. 2, it may be formed in any shape, such as one protruding from the base portion 3d1 only to the peripheral edge side of the translucent panel 3 or one protruding to both sides thereof. .

The embedded luminaire thus constructed is
The instrument main body 1 is inserted into the embedding hole 7a provided in the ceiling 7, and is attached to the ceiling 7 by sandwiching the ceiling plate between the upper end of the ceiling abutment piece 1k, which is the outer collar 1c, and the attachment spring 9. . In addition, the translucent panel 3 has the head 3 of the engaging protrusion 3d.
The d2 is inserted into the wide portion 1g1 of the locking hole 1g and rotated, and the base 3d1 is moved to the narrow portion 1g2 side, so that the head portion 3d2 is locked and attached to the narrow portion 1g2 side.
Generally, in such an embedded luminaire, it is desired that the luminaire 1 be inconspicuous, and therefore, the outer collar 1c on the lower surface side of the ceiling 7 is also required to be thin and small. Further, in the state where the translucent panel 3 is not attached, since the lower end of the instrument body 1 has the opening 1a, the ceiling 7 looks like a hole and the sense of unity with the ceiling 7 is impaired. 3 is attached and used.

Then, in a state where it is attached to the ceiling 7,
The outer collar 1c provided with the locking portion 1g and the engaging portion 3c have a distance a between the lower surface of the ceiling 7 and the lower surface of the horizontal surface 1h of the outer collar 1c, a distance from the upper end of the head 3d2 of the engaging projection 3d to the base 3d1. The distance from the bottom of the ceiling 7 to the inner surface of the horizontal surface 1h of the outer collar 1c, the distance between the upper end of the outer periphery of the translucent panel 3 and the lower end of the head 3d2 of the engaging projection 3d. d, engaging protrusion 3d
If the distance from the lower end of the head 3d2 to the base of the base 3d1 is e and the plate thickness of the horizontal surface 1h of the outer collar 1c is t, then a ≧ b ... c> d ... ........ e> t ........ is formed so as to satisfy the three equations. In the formula, it is possible to set c = d and e = t, but in that case, coating may be applied to the surface in order to reduce friction.

With this structure, in the embedded lighting fixture of this embodiment, it is not necessary to provide the fixture body 1 with the slit 1e for the mounting spring for attaching the fixture body 1 to the ceiling. However, since it is not necessary to provide a support spring engaging portion for mounting the frame body or the translucent panel 3, the area required in the circumferential direction of the instrument body 1 to form them can be reduced, and the instrument It is necessary to make the main body 1 cylindrical, and for example, the instrument main body 1 having a substantially U-shape can be used. Further, the translucent panel 3 has the engaging portion 3c.
By locking the locking projecting piece 3d which is the same with the locking hole 1g which is the locking portion 1f of the instrument body 1, it can be mounted without using a frame body or a supporting spring, so that the number of parts can be reduced and the transparent If the optical panel 3 is pushed up from the lower side and rotated, the transparent panel 3 can be attached, and it is not necessary to operate the support spring, so that the operability of attaching and detaching the transparent panel 3 is improved. Furthermore, since the translucent panel 3 is formed to have a larger diameter than the outer diameter of the outer collar 1c of the instrument body 1, and covers the lower surface of the outer collar 1c together with the opening 1a of the instrument body 1, the outer collar 1c is Since it is no longer visible, a sense of unity with the ceiling 7 is obtained, and it looks good. Also, when the lighting equipment is turned on, a part of the light wraps around to the end of the translucent panel 3 and becomes a part of the ceiling 7. You can feel it and it will look good.

4 and 5 show a modified example of the present embodiment, which illustrates an embedded luminaire in which the peripheral edge of the translucent panel 3 has a different sectional shape. The cross-sectional shape of the translucent panel 3, including the illustrated shape, may be any shape.

FIG. 6 shows a second embodiment of the embedded lighting fixture of the present invention. The difference from the first embodiment is that the fixture main body 1 is provided on the upper surface of the translucent panel 3. It is the same as the first embodiment except that a positioning portion 3h for positioning is provided.

The positioning portion 3h is formed in an annular shape on the upper surface side of the translucent panel 3 so as to project above the engaging projection 3d, and is located at the outer peripheral end of the outer collar 1c of the frame-shaped body 3n. The translucent panel 3 is positioned with respect to the instrument body 1 by contacting the outer surface of a ceiling contact piece 1k or the inner peripheral edge of the horizontal piece 1h. And the positioning part 3h is the instrument main body 1
If it comes into contact with a predetermined position of the engaging part 3c of the translucent panel 3,
The engaging protrusion 3d is positioned so as to be located on the same circumference as the engaging hole 1g which is the engaging portion 1f of the outer collar 1c, and the translucent panel 3 is rotated to engage the engaging protrusion 3d. The light-transmitting panel 3 is mounted on the instrument body 1 by inserting it into the stop hole 1g and rotating it, as in the first embodiment. In the figure, 3k indicates a positioning piece for positioning the reflection plate 5.

With this configuration, in the embedded lighting fixture according to the present embodiment, in addition to the effect of the first embodiment, when the translucent panel 3 is attached to the fixture body 1. In addition, the positioning portion 3h comes into contact with the instrument body 1 before the engagement protrusion 3d that is the engagement portion 3c, and the engagement protrusion 3d is the engagement hole 1g that is the engagement portion 1f of the instrument body 1. The guide will be adjusted to, and the operability of wearing will be improved.

In this embodiment, the positioning portion 3h is formed in the shape of a ring, but the positioning portion 3h may be a plurality of protrusions formed on the same circumference. The present embodiment exemplifies the light-transmitting panel 3 in which a plurality of two positioning portions 3h are provided so as to abut on two different parts of the instrument body 1, but the positioning portions 3h are different from those of the instrument body 1. As long as the translucent panel 3 can be positioned relative to each other, only one part may be provided so as to contact the outer peripheral surface of the outer collar 1c, which is one part of the instrument body 1.

FIGS. 7 and 8 show a third embodiment of the embedded lighting fixture of the present invention. The difference from the first embodiment is that the collar portion 1c of the fixture body 1 is different. The engaging portion 1f provided in the above and the engaging portion 3c of the translucent panel 3 are configured in the same manner as the first embodiment except the above.

A plurality of locking portions 1f of the appliance main body 1 are formed on a ceiling abutting piece 1k formed on the outer peripheral edge of the outer collar 1c of the appliance main body 1, and the ceiling abutting piece 1k is opened at the lower end side. Thus, the front view is formed as a locking hole 1g having a substantially inverted L shape. The locking hole 1g communicates with the insertion hole 1p formed in the horizontal piece 1h of the collar portion 1c from the outer peripheral end toward the substantially central direction of the frame-shaped body 1n, and the ceiling abutment piece 1k communicated with the insertion hole 1p. It is formed by a rotation hole 1q formed along the circumferential direction from above the insertion hole 1p.

The engaging portion 3c of the translucent panel 3 is provided on the upper surface side of the translucent panel 3 at a position facing the locking hole 1g of the instrument body 1, and the center of the translucent panel 3 from the outer peripheral end. The plurality of projecting pieces 3f are provided to project substantially horizontally toward the side, and are formed to have a gap 3e with respect to the inner lower surface of the translucent panel 3.

Then, the protrusion 3f is aligned with the insertion hole 1p of the locking hole 1g, and the translucent panel 3 is pushed up, and the translucent panel 3 is rotated to move the protrusion 3f into the rotation hole 1q. Then, the translucent panel 3 is attached to the instrument body 1. At this time, the height of the protruding piece 3f and the height of the rotation hole 1q are substantially the same, and the friction makes it difficult for the translucent panel 3 to rotate in the opposite direction. It is designed not to drop out. Even with such a configuration, substantially the same effect as that of the first embodiment is obtained, and when the translucent panel 3 is attached to the instrument main body 1, the inner peripheral edge on the upper surface side of the translucent panel 3 is It can also be used as a guide for the outer peripheral edge of the outer collar 1c.

FIG. 9 shows a fourth embodiment of the embedded luminaire of the present invention. The difference from the third embodiment is that the height of the projecting piece 3f is the hole for rotation. It is formed to be lower than the height of 1q, and a spring body 8 is provided on the back side of a locking hole 1g which is a locking portion 1f provided on the collar portion 1c of the instrument body 1, and the other is the third. The configuration is similar to that of the embodiment.

The spring body 8 has one end locked to the ceiling abutment piece 1k of the outer collar 1c and the other end to the inner side of the rotation hole 1q of the locking hole 1g which is the locking portion 1f, that is, the outer flange. The spring body 8 is formed so as to be positioned on the center side of the 1c, and the spring body 8 is formed in a substantially S-shape on the other end side. Then, when the translucent panel 3 is in the normal mounting state, it urges the protruding piece 3f, which is the engaging portion 3c, in the rotation direction at the time of mounting, which is the engaging operation direction, and in the imperfect mounting state, the protruding piece 3f is in the detaching operation direction. It is supposed to be urged.

With this configuration, in the embedded lighting fixture according to the present embodiment, in addition to the effects of the third embodiment, the protrusion 3f is inserted into the insertion hole 1p. At the position where rotation starts, the spring piece 8 causes the protrusion 3
When f is pushed back in the detaching direction and halfway attachment can be prevented, and when the protruding piece 3f gets over the S-shaped mountain due to the rotation and becomes a properly attached state, the protruding piece 3f is urged in the rotating direction. It is prevented that it accidentally comes off.

FIG. 10 shows a fifth embodiment of the embedded luminaire of the present invention.
The first embodiment is different from the first embodiment in that the locking portion 1f of the instrument body 1 is attached to the ceiling abutment piece 1.
A male screw portion 1r provided on the outer surface of k, and an engaging portion 3c of the light-transmitting panel 3 as a female screw portion 3g formed on the inner surface of the peripheral end and screwed into the male screw portion 1r. 3 is attached, and other points are configured in substantially the same manner as in the first embodiment.

Even with this construction, the same effect as that of the first embodiment can be obtained, and the engaging portion 1f and the engaging portion 3 can be obtained.
Since c is a threaded portion, it is not necessary to position the locking portion 1f and the engaging portion 3c in the circumferential direction of the instrument body 1.
In the present embodiment, the male screw portion 1r is formed on the outer surface of the ceiling abutting piece 1k and the female screw portion 3g is formed on the inner surface of the peripheral end of the translucent panel 3. It may be such that an annular protrusion is formed and a male screw is provided on the outer surface thereof, and a female screw is formed on the inner peripheral side of the frame-shaped body. It may be formed so as to lack a portion.

11 and 12 show a sixth embodiment of the embedded lighting fixture according to the present invention. The difference from the third embodiment is that the locking portion of the fixture body 1 is different. 1f,
It is the engaging portion 3c of the light-transmitting panel 3 and is otherwise configured substantially the same as in the third embodiment.

The locking portion 1f of the instrument body 1 is a ceiling contact piece 1
is a notch 1s formed by notching the upper end of k in the circumferential direction at a plurality of positions, and the engaging portion 3c of the translucent panel 3 is formed.
Is a plurality of projecting pieces 3f projecting from the outer peripheral end of the translucent panel 3 toward the center side. The projecting pieces 3f have a thin tip and a substantially triangular cross section, and The translucent panel 3 is formed so as to have a gap 3e with respect to the inner and lower surfaces of 3, and is elastically deformable.

Then, by elastically deforming the light-transmitting panel 3, the tip of the projecting piece 3f, which is the engaging portion 3c, is engaged with the engaging portion 1.
The translucent panel 3 is attached to the instrument body 1 by engaging with the notch 1s which is f. With this configuration, the same effect as that of the first embodiment can be obtained, and the translucent panel 3 can be mounted without rotating.

In this embodiment, the ceiling contact piece 1k is used.
Although the notch 1s, which is the locking portion 1f, is formed by partially cutting out the upper end in the circumferential direction, the ceiling contact piece 1k is notched at the upper end over the entire circumference, and the inner piece 1 of the collar portion 1c is formed.
The t may be brought into contact with the ceiling 7. In this case, since the locking portion 1f has the entire circumference, it is not necessary to position the locking portion 1f and the engaging portion 3c in the circumferential direction of the instrument body 1.

Further, in each of the above-described embodiments, the instrument main body 1 has been described as being provided with the substantially U-shaped yoke main body 1m, but the present invention is not limited to this, and has a tubular shape. It may be formed.

[0047]

As described above, according to the present invention, since it is configured as described above, although it is necessary to provide a mounting portion for mounting the instrument body on the ceiling in the instrument body, Since it is not necessary to provide a portion for locking the frame body or the translucent panel, the area required in the circumferential direction of the instrument body to form them can be reduced, and the instrument body need not be cylindrical. Further, since the translucent panel can be mounted without using the frame body or the support spring by locking the engaging portion with the locking portion of the instrument body, the number of parts can be reduced. In addition, since the translucent panel is formed to be larger than the outer diameter of the outer collar of the instrument body and covers the lower surface of the outer collar together with the opening of the instrument body, the outer collar is no longer visible and the A feeling of unity is obtained and the appearance is good. Even when the lighting equipment is turned on, a part of the light wraps around to the end of the translucent panel, and a feeling of unity with the ceiling is obtained and the appearance is improved.

According to the second and third aspects of the invention, in addition to the effect of the first aspect of the invention, the locking portion of the instrument body is a locking hole provided on the horizontal surface of the outer collar. Yes, since the engaging portion of the translucent panel is an engaging protrusion protruding upward,
The translucent panel can be attached and detached from the lower surface side of the translucent panel, and the operability of attaching and detaching is improved.

According to the invention described in claim 4, in addition to the effect of the invention described in claim 2 or 3, when the light-transmitting panel is attached to the instrument body, the positioning portion engages with each other. The engaging protrusion is a guide to be brought into contact with the instrument body before the engaging protrusion, and the engaging protrusion is aligned with the engaging hole which is the engaging portion of the instrument body, so that the mounting operability is further improved.

According to the fifth and sixth aspects of the invention, in addition to the effect of the first aspect of the invention, when the translucent panel is attached to the instrument body, the The inner peripheral edge can also be used as a guide for the outer peripheral edge of the outer collar.

According to the invention of claim 7, in addition to the effect of the invention of claim 3, 5 or 6, the position at which the projecting piece is inserted into the insertion hole and starts to rotate. Then, the protrusion is pushed back in the detaching direction by the spring body, so that halfway attachment can be prevented, and if the protrusion overcomes the S-shaped mountain by rotation and becomes a normal attachment state, the protrusion is rotated in that direction. It is possible to prevent the translucent panel from being accidentally detached due to being biased.

According to the invention of claim 8, claim 5 is provided.
In addition to the effects of the described invention, since the locking portion and the engaging portion are screw-shaped, it is not necessary to position the locking portion and the engaging portion in the circumferential direction of the instrument body.

According to the invention of claim 9, claim 5 is provided.
In addition to the effects of the invention described above, the translucent panel can be mounted without rotating.

[Brief description of drawings]

FIG. 1 is a front view of a partial cross-sectional state showing a main part of a first embodiment of an embedded lighting fixture of the present invention.

FIG. 2 is a sectional view of a main part of the above.

FIG. 3 is a perspective view of a main part of the above.

FIG. 4 is a cross-sectional view of a main part of the same translucent panel having different shapes.

FIG. 5 is a cross-sectional view of a main part when the shape of the above translucent panel is further different.

FIG. 6 is a sectional view of essential parts showing a second embodiment of the embedded lighting fixture of the present invention.

FIG. 7 is a perspective view of a main part of the above.

FIG. 8 is a cross-sectional view of a main part of the above translucent panel.

FIG. 9 is a plan view of a partial cross-section of a main part showing a third embodiment of the embedded lighting fixture of the present invention.

FIG. 10 is a perspective view of a main part showing a fourth embodiment of the embedded lighting fixture of the present invention.

FIG. 11 is a cross-sectional view of a main part showing a fifth embodiment of the embedded lighting fixture of the present invention.

FIG. 12 is a perspective view of a main part of the above.

FIG. 13 is a perspective view of a conventional embedded lighting fixture (first conventional example).

FIG. 14 is another conventional embedded lighting fixture (second conventional example).
FIG. 4 is a front view of a partial cross-sectional state of FIG.

FIG. 15 is a perspective view showing a main part of a conventional hanging-type lighting fixture.

[Explanation of symbols]

 1 Instrument main body 1a Opening 1c Outer brim 1f Locking part 1g Locking hole 1g1 Wide part 1g2 Narrow part 1h Horizontal surface 1k Ceiling abutting piece 3 Transparent panel 3c Engaging part 3d Engaging protrusion 3d1 Base part 3d2 Head part 3e Gap 3f Projecting piece 3g Locking hole 3h Positioning part 7 Ceiling 7a Embedded hole 8 Spring body

Claims (9)

[Claims] 1. An instrument main body having an opening on the lower surface side and an outer collar provided around the opening, and a translucent panel arranged on the opening side of the instrument main body. In an embedded lighting fixture that is inserted and attached to an embedded hole provided in a ceiling so that the collar comes into contact with the lower surface of the ceiling, the translucent panel is provided with an engaging portion, and the engaging portion is provided on the outer collar. An embedded luminaire, characterized in that a translucent panel is attached to the main body of the fixture by being engaged with the engaging part, and the opening and the lower surface of the outer collar are covered with the translucent panel. 2. A ceiling abutting piece is erected on the outer peripheral edge of the outer collar of the appliance main body, the tip of which abuts against the lower surface of the ceiling to separate the horizontal surface of the outer collar from the lower surface of the ceiling at a predetermined distance. A plurality of locking holes are provided at a predetermined pitch on the horizontal surface of the brim, and the locking holes serve as the locking portions, and the locking holes project upward in the vicinity of the peripheral edge of the translucent panel and are inserted into the locking holes. The embedded luminaire according to claim 1, further comprising an engagement protrusion that is an engagement portion to be stopped. 3. A wide portion and a narrow portion of the locking hole are formed so as to communicate with each other along a circumferential direction of the outer collar, and an engaging projection of the translucent panel has a peripheral portion of the translucent panel. A width direction in a direction substantially perpendicular to the width direction is smaller than the narrow portion and movable in the narrow portion; and a width dimension formed on the upper side of the base portion is smaller than the wide portion and smaller than the narrow portion. And a head that is formed to be large and that is inserted into the locking hole from below the wide portion and that is movable above the narrow portion above the horizontal surface of the outer collar. The head portion of the projecting piece is inserted into the wide portion of the locking hole and then engaged with the narrow portion of the locking hole by rotating the translucent panel. Recessed lighting fixture. 4. A positioning portion is provided on an upper surface of the translucent panel, the positioning portion projecting above the engaging protrusion and abutting on the instrument body to position the instrument body. 2. The embedded lighting fixture according to claim 2 or claim 3. 5. A ceiling abutment piece, the tip of which abuts the ceiling lower surface, is provided upright on the outer peripheral end of the outer collar of the appliance body, and a locking portion is formed in the ceiling abutment piece along the circumferential direction. At the same time, the engaging part of the translucent panel is locked to the locking part. 6. The engagement portion is a generally inverted L-shaped engagement hole that opens at the lower end of the ceiling abutment piece, and the engagement portion is located substantially in the center from the outer peripheral side of the translucent panel. 6. The embedded lighting fixture according to claim 5, wherein the embedded lighting fixture is a projecting piece that is provided substantially horizontally so as to have a gap toward the inner lower surface of the translucent panel. 7. The engaging portion is biased in the engaging operation direction to the inner side of the locking portion when the translucent panel is normally mounted, and the engaging portion is disengaged when the translucent panel is incompletely mounted. 4. A spring body for urging in the direction is provided.
Alternatively, the embedded lighting fixture according to claim 4 or claim 6. 8. The locking portion provided on the outer collar of the instrument body and the engaging portion of the translucent panel are formed in a screw shape so as to be screwed with each other. Recessed lighting fixture. 9. The projecting piece, wherein the engagement portion is provided substantially horizontally from the outer peripheral side of the translucent panel toward the center so as to have a gap with respect to the inner lower surface of the translucent panel, The embedded lighting fixture according to claim 5, wherein the projecting piece is locked to the locking portion by elastically deforming the translucent panel.