JPH07161210A - Luminaire - Google Patents

Abstract

PURPOSE:To drop an apparatus main body against a mounting spring so as to engage it in a ceiling by arranging a projection part, in a single base lamp to be inserted into the apparatus main body. CONSTITUTION:A luminaire is provided with an apparatus main body 1, a mounting spring 2, a socket base 3, a lamp socket 4, and a single base lamp 5. When the single base lamp 5 is not mounted, the maximum distance phi1 from the central position to the outline of the apparatus main body 1 setting the first recessed part 17 as the central position is smaller than the diameter phi2 of a recessed hole 7 in a ceiling 6. When the single base lamp 5 is mounted in the lamp socket 4, the maximum distance phi3 from the central position to the outline of the apparatus main body 1 setting the second recessed part, 18 formed in the projection part 12 of the lamp base 20 as the central position is larger than the diameter phi2 of the recessed hole 7. In this way, the apparatus main body 1 is easily installed in the ceiling 6, and even if the apparatus main body 1 is going to fall down against the mounting spring 2, the projection part 12 of the single base lamp 5 is engaged in the ceiling 6, and as a result, the apparatus main body is prevented from falling off.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture.

[0002]

2. Description of the Related Art FIG. 4 shows a conventional example. That is, the fixture main body 50 integrally has a mounting bracket 51 and a frame 52, a ballast 53 and a lamp socket 54, and is inserted into an embedded hole in the ceiling to lock the frame 52 on the ceiling surface. The metal fitting 51 is locked to the ceiling back surface and fixed to the ceiling. The reflection plate 55 is inserted into the embedding hole to be attached to the attachment portion (not shown) of the fixture body 50, and the single-base lamp 56 is inserted from the reflection plate 55 to pass through the lamp insertion hole portion of the reflection plate 55 and the lamp socket 54. Attach to.

[0003]

However, it is necessary to insert the lighting fixture into the embedding hole with the reflector 55 and the single-ended lamp 56 removed when the ceiling fixture is mounted, which makes mounting work complicated. There was a flaw. Therefore, an object of the present invention is to provide a lighting fixture that can be easily and safely mounted on the ceiling.

[0004]

The luminaire of the present invention comprises:
An instrument main body having a ceiling-like tubular shape that can be fitted in a ceiling embedding hole and has a flange that engages with a surface side edge portion of the embedding hole in an opening portion and a lamp insertion hole portion in a side portion, The lower end is attached to both sides of the instrument body in the direction intersecting the opening direction of the lamp insertion hole, and the upper end side is gradually curved outward of the instrument body, so that the edge of the embedded hole is rubbed. A mounting spring to be locked, a socket base whose tip extends from the top of the fixture body to a position facing the lamp insertion hole, and a front face attached to the tip of the socket base to the lamp insertion hole. A lamp base facing the lamp socket, and a lamp base inserted into the fixture body and attached to the lamp socket through the lamp insertion hole portion has a single-ended lamp having a protrusion protruding below the lamp socket, Instrument book In a vertical plane including the central axis of the lamp socket and the central axis of the lamp socket, the first formed by the lamp socket and the side portion of the fixture body below the lamp socket when the single base lamp is not mounted. The maximum distance from the center position of the concave portion to the outer shape of the instrument main body including the socket base is smaller than the diameter of the embedding hole, and when the single-base lamp is attached to the lamp socket, A second concave portion formed by the protrusion of the lamp base of the single-base lamp and the side portion of the fixture body on the lower side of the protrusion is defined as a center position from the center position to the outer shape of the fixture body including the socket base. The dimensional relationship is set so that the maximum distance is larger than the diameter of the embedding hole.

[0005]

According to the structure of the present invention, when the lighting fixture is mounted on the ceiling, the single base lamp is removed, and the fixture main body is tilted with the tip of the mounting spring bent toward the fixture main body. Is inserted into the embedding hole first, and the instrument body is turned to a vertical posture during the insertion, and at the same time, the fitting spring frictionally locks the embedding hole. Further, when the single-base lamp is inserted into the main body of the fixture and attached to the lamp socket through the lamp insertion hole, the protruding portion of the lamp base approaches the back surface of the ceiling. Therefore, even if the fixture body tries to fall against the mounting spring, the protrusion of the single-ended lamp is locked to the ceiling, which prevents the fall. Therefore, it is easy to mount on the ceiling and can be prevented from falling, thus ensuring safety.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. That is, this lighting fixture includes the fixture main body 1,
Mounting spring 2, socket base 3, lamp socket 4,
It has a single base lamp 5. The fixture main body 1 has a ceiling-like tubular shape that can be fitted into the embedding hole 7 of the ceiling 6, has a brim 8 that engages with the surface side edge of the embedding hole 7, and has a lamp insertion hole. It has a part 9 on the side. In the embodiment, the ballast storage portion 16 is formed at the base of the socket base 3 at the top, and the ballast 15 and the like are attached to the ballast storage portion 16.

As shown in FIG. 2, the mounting spring 2 has lower ends 10 attached to both sides in a direction intersecting the opening direction of the lamp insertion hole 9 of the instrument body 1 and the upper end 11 side of the instrument body 1. By gradually curving outward, frictional locking is carried out at the edge of the embedding hole 7. In the embodiment, it is formed of a leaf spring, and the lower end portion 10 is provided with a folding piece and attached to the instrument body 1, and the upper end portion 1
Reference numeral 1 denotes a bent portion that bends outward so that the instrument main body 1 can be caught even when the single-ended base lamp 5 is not attached.

The tip of the socket base 3 extends from the top of the fixture body 1 to a position facing the lamp insertion hole 9.
In the embodiment, a substantially L-shaped plate is used, one piece of which is attached to the top of the fixture body 1, the ballast 15 is attached to one piece so as to be accommodated in the ballast accommodating portion 16, and the lamp socket is provided inside the tip of the other piece. 4 is attached. The lamp socket 4
The front surface is attached to the tip of the socket base 3 and faces the lamp insertion hole 9. In the embodiment, the rear end of the lamp socket 4 is attached to the socket base 3.

The single base lamp 5 has a protrusion 12 in which a lamp base 20 which is inserted into the main body 1 of the lamp and is attached to the lamp socket 4 through the lamp insertion hole 4 protrudes below the lamp socket 4. Example lamp base 2
0 is a quadrangle, and the protrusion 12 is a corner portion thereof. Further, the single-base lamp 5 has four straight tubes 17a to 17d which are erected upright in the vicinity of a corner portion in accordance with the shape of the lamp base 20, and as shown in FIG. 2, a pair of straight tubes 17a positioned diagonally. , 17c are attached to the lamp socket 4 in a vertical posture.

The central axis P of the instrument body 1 and the ramp
In a vertical plane including the central axis Q of the ket 4, that is, in FIG.
Lamp lamp when the single base lamp 5 is not installed.
Formed by the ket 4 and the lower side of the instrument body 1
With the first concave portion 17 as the center position,
Maximum distance φ to the outer shape of the instrument body 3 including the racket 3 ₁
Is the diameter of the embedding hole 7₂Smaller and single-ended lamp
One end of when 5 is attached to the lamp socket 4 (imaginary line)
The protrusion 12 of the lamp base 20 of the gold lamp 5 and its subordinates
The second recess 18 formed by the side of the instrument body 1 on the side
A device including the socket base 3 from this central position as the central position
Maximum distance φ to the outer shape of the tool body 1₃Is the diameter of the embedding hole 7₂
The dimensional relationship is set to be larger than the above.

Therefore, the height of the lamp socket 4 is limited to the dimension L or more, which cannot be lowered further to the underside of the ceiling, and the protrusion 12 of the lamp base 20 of the single-base lamp 5 approaches the above-ceiling. Becomes According to this embodiment, when the lighting fixture is mounted on the ceiling 6, the single base lamp 5 is removed, and the fixture main body 1 is tilted while the tip of the mounting spring 2 is bent toward the fixture main body 1 side. When the socket base 3 is first inserted into the embedding hole 7 as shown in FIG. 1 and the instrument body 1 is rotated to a vertical posture during the insertion, the mounting spring 2 simultaneously frictionally locks the embedding hole 7 therein. This state is the fixed state when the single-base lamp 5 is not attached.

Further, when the single base lamp 5 is inserted into the main body 1 of the lamp and is attached to the lamp socket 4 through the lamp insertion hole 9, the protrusion 12 of the lamp base 20 is formed due to the above-mentioned dimensional relationship.
Approaches the back of the ceiling 6. Therefore, even if the fixture body 1 tries to fall against the mounting spring 2, the protrusion 12 of the single-base lamp 5 is locked to the ceiling 6 to prevent the fall. Therefore, it is easy to mount on the ceiling and can be prevented from falling, thus ensuring safety.

Even in the case of a downlight with a built-in ballast, which is relatively heavy, the simple spring mounting structure as in this embodiment can be adopted, so that the workability can be improved and the reflector and the instrument body can be integrated. Cost reduction can be achieved by adopting this method. Also,
By arranging the straight pipes 17a to 17d of the single base lamp 5 in the state of FIG. 2, the protruding portion 12 can be projected downward, so that the single ceiling lamp 5 can be used even with the thin ceiling material 6a shown by dots in FIG. If it is attached, it can be prevented from falling. Moreover, the number of straight pipes 17a to 17d is three or more when viewed from below, so that the number of straight pipes is 45
The luminous flux of the lamp can be used effectively and the efficiency of the fixture can be improved, compared with the case where only two can be seen.

[0014]

The lighting fixture of the present invention, when mounting the lighting fixture on the ceiling, removes the single-ended lamp and tilts the fixture main body with the tip of the mounting spring bent toward the main body of the lamp to provide a lamp socket and a socket. The table is inserted into the embedding hole first, and the instrument body is rotated to a vertical posture during the insertion, and at the same time, the mounting spring frictionally locks the embedding hole. Further, when the single-base lamp is inserted into the main body of the fixture and attached to the lamp socket through the lamp insertion hole, the protruding portion of the lamp base approaches the back surface of the ceiling. Therefore, even if the fixture body tries to fall against the mounting spring, the protrusion of the single-ended lamp is locked to the ceiling, which prevents the fall. Therefore, there is an effect that safety can be achieved because the ceiling mounting is easy and the drop can be prevented.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a mounting process in a vertical plane including a central axis of a fixture body and a central axis of a lamp socket according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view in a direction orthogonal to a lamp axis in a state where a lighting fixture is attached.

FIG. 3 is a cross-sectional view of the lighting fixture of FIG. 1 in a mounted state.

FIG. 4 is a side view of a conventional example.

[Explanation of symbols]

1 fixture body 2 mounting spring 3 socket base 4 lamp socket 5 single-ended lamp 6 ceiling 7 embedding hole 8 flange 9 lamp insertion hole 12 protrusion 17 first recess 18 second recess 20 lamp base φ ₁ first Maximum distance from the recess φ ₂ Embedded hole diameter φ ₃ Maximum distance from the second recess

Claims (1)

[Claims] 1. A ceiling-shaped tubular member that can be fitted into a recessed hole in a ceiling, has a collar that engages with a surface side edge of the recessed hole in an opening, and has a lamp insertion hole in a side portion. An instrument body having the instrument body, the lower end portion being attached to both sides of the instrument body in a direction intersecting the opening direction of the lamp insertion hole portion, and the upper end portion side being gradually curved outward of the instrument body, the embedding hole A mounting spring frictionally locked to the edge of the device, a socket base whose tip extends from the top of the fixture body to a position facing the lamp insertion hole, and a front face mounted on the front end of the socket base. A single-base lamp having a lamp socket facing the lamp insertion hole and a projection part in which the lamp base inserted into the fixture body and attached to the lamp socket through the lamp insertion hole projects below the lamp socket. With and Formed in a vertical plane that includes the central axis of the fixture body and the central axis of the lamp socket, with the lamp socket and the side portion of the fixture body below the lamp socket when the single base lamp is not mounted. The maximum distance from the center position to the outer shape of the instrument main body including the socket base is smaller than the diameter of the embedding hole, and the single base lamp is attached to the lamp socket. The main body of the fixture including the socket base from the central position of the second recess formed by the protrusion of the lamp base of the single base lamp and the side of the main body of the fixture below The luminaire whose dimensional relationship is set such that the maximum distance to the outer shape of the above is larger than the diameter of the embedded hole.