JPH0716254Y2 - Recessed luminaire - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an embedded luminaire, and more particularly to an embedded luminaire having a butt type lamp socket.

[Conventional technology]

An embedded luminaire using a straight tube fluorescent lamp as a light source generally has a lamp socket 10 as shown in FIGS. 4 and 5.
The lighting fixture main body 1 equipped with the straight tube fluorescent lamp 11 is pushed into the embedding hole 3 provided in the mounting surface 2 such as the ceiling, and the outer collar formed on the peripheral edge of the lower surface opening 4 of the lighting fixture main body 1. 5 is abutted on the mounting surface, and then the frame 17 on which the lower surface panel 16 and the like is placed is suspended from the lighting fixture main body 1 so that the upper end of the frame 17 is abutted on the mounting surface 2 of the lighting fixture main body 1. It covers the outer collar 5 and is attached to the attachment surface 2.

Conventionally, as a fixing method of the luminaire main body 1, as shown in FIG. 6, a method of hanging it from a building beam or the like with a bolt 18 or attaching it to a field edge of the mounting surface 2 with a wood screw 19 is generally used. However, in order to improve the installation workability, as shown in FIG. 7, the mounting bracket 6 is projected out of the luminaire main body 1 through a vertically long hole formed on the side surface of the luminaire main body 1. Recently, a method of sandwiching the mounting surface 2 between the mounting bracket 6 locked to the luminaire main body 1 and the outer collar 5 of the luminaire main body 1 is often adopted recently.

[Problems to be solved by the device]

By the way, the embedded hole 3 for embedding the luminaire main body 1 of the embedded luminaire is usually larger than the luminaire main body 1 by about 5 to 10 mm in order to facilitate the installation work. There is a gap between the mounting surface 2 and the periphery of the luminaire main body 1 in a state where the mounting surface 2 is mounted.

Lamp socket used for such embedded lighting fixtures
10 is often used as a straight tube fluorescent lamp 11 up to about 20W type, but a pinch type is often used, but in general (particularly for 40W type or more) a butt type is often used. .

When trying to install the straight tube fluorescent lamp 11 in the embedded lighting fixture using the butt type lamp socket 10, the straight tube fluorescent lamp is resisted against the pressure applied to the straight tube fluorescent lamp 11 from the contact spring of the lamp socket 10. It is necessary to push one of the bases of the lamp 11 into the one lamp socket 10 and then connect the other base of the straight tube fluorescent lamp 11 to the other lamp socket 10 in this state. There is a risk of being pushed by the socket 10 side and moving. In that case, the gap between the embedding hole 3 and the lighting fixture body 1 is concentrated on the other lamp socket 10 side, and if the embedding hole 3 is large, the gap appears to protrude from the frame 17 or the mounting bracket 6 If the tip of the mounting tool 6 is immovable along the mounting surface 2 and the mounting tool 6 is immovable, the mounting tool 6 is deformed and the mounting strength of the lighting fixture body 1 is reduced. Could occur.

The present invention has been made in view of the above background, and it is an object of the present invention to provide an embedded luminaire which prevents a trouble caused by the movement of the luminaire body when the straight tube fluorescent lamp is attached to the butt type lamp socket. To do.

[Means for Solving the Problems]

The embedded luminaire according to the present invention is provided with a long hole having a long axis in the direction of embedding of the luminaire body on the side surface of the luminaire body equipped with a butt type lamp socket and equipped with a straight tube fluorescent lamp. The main body of the luminaire is embedded in the bored hole, and the mounting surface is sandwiched between the mounting bracket projecting from the elongated hole to the outside of the main body of the luminaire and the outer collar protruding from the peripheral edge of the lower surface of the luminaire. Attach the fixture body to the mounting surface, and attach the fixture body to the outside of the fixture body in the tube axis direction of the straight tube fluorescent lamp mounted in the lamp socket by elastically contacting the side of the embedding hole that is made of an elastic body. A movement prevention piece is provided to be located approximately in the center of the embedding hole.

In addition, in this embedded luminaire, the movement prevention piece is integrally provided on a socket base mounted on the luminaire main body with the lamp socket attached, and the luminaire is penetrated from a through hole formed on the side surface of the luminaire main body. It can also be projected outside the main body.

Further, in this embedded luminaire, the socket base is rotatable between the lamp socket and the movement preventing piece in a plane including the tube axis of the straight tube fluorescent lamp and parallel to the plane perpendicular to the mounting surface. It may be supported on the main body of the luminaire.

[Action]

According to the present invention, the movement preventing piece elastically abuts the side surface of the embedding hole to prevent the lighting fixture body from moving when the straight fluorescent lamp is mounted.

In addition, since the movement preventing piece is provided integrally with the socket base, it can have a simple structure.

Furthermore, when the straight tube fluorescent lamp is attached to the lamp socket, a force is applied to the movement prevention piece so as to push the lighting device body back against the movement of the socket base due to the force to rotate the socket base, so that the above effect can be reliably achieved.

〔Example〕

1 to 3 show an embodiment of the present invention, which will be described below with reference to the drawings.

In this embedded luminaire, as in the embodiment, the luminaire main body 1 is embedded in the embedding hole 3 formed in the mounting surface 2 such as the ceiling, and the outer flange 5 at the periphery of the lower surface opening 4 of the luminaire main body 1 is attached to the mounting surface. 2 is abutted, and the mounting surface 2 is sandwiched and mounted by the outer collar 5 and the mounting bracket 6.

The luminaire main body 1 is formed by bending a thin steel plate into a rectangular box shape having a bottom opening with a bottom.
Are formed all around. The outer collar 5 is bent upward from the tip, and the tip end surface of the outer collar 5 contacts the mounting surface 2. In order to attach a socket base 7 to be described later to the luminaire main body 1, socket base engaging portions 8 are provided by cutting and raising in a bridge shape inward of the luminaire main body 1 on both side surfaces parallel to the lamp axis. A through hole 9 is formed on the side surface perpendicular to the axis. Further, a butt type lamp socket 10 for a straight tube fluorescent lamp is attached to the socket base 7 attached to the lighting fixture body 1 so as to face each other for each straight tube fluorescent lamp 11.

The socket base 7 is formed by press-drawing and bending an elastic steel plate, and has a substantially square notch 12 for mounting a socket in the front part, and a part of both side edges of the notch 12 is obliquely upward. Folded up to form mounting piece 13, lamp socket 10
The mounting piece 13 is fitted into a mounting groove formed on the side surface of the lamp socket 10, and the lamp socket 10 is mounted by its elastic force. Both side portions of the socket base 7 are bent downward in order to secure the strength of the socket base 7, and further a part thereof is projected downward, and these protruding portions are inserted into the socket base engaging portion 8 of the lighting fixture body 1. Is an engaging piece 14 for locking the socket base 7 to the lighting fixture body 1. In addition, a pair of rectangular pieces are projecting obliquely downward from both side ends of the socket base 7 at both ends thereof, and these rectangular pieces project from the through hole 9 of the lighting fixture body 1 to the outside of the lighting fixture body 1. The tip is a movement preventing piece 15 which is located near the tip of the outer collar 5 of the luminaire main body 1 and comes into contact with the side surface of the embedding hole of the luminaire main body 1. The space between the movement preventing pieces 15 is positively pushed upward to secure the strength of the socket base 7.

Next, the operation of the embedded luminaire when the straight tube fluorescent lamp is attached will be described.

In this embedded luminaire, when the luminaire main body 1 is embedded in the embedded hole 3 formed in the mounting surface 2, the movement prevention piece 15 of the socket base 7 projects outside the luminaire main body 1 and its tip end. Since it is located in the vicinity of the outer collar 5, it comes into contact with the side surface of the embedding hole 3 and positions the lighting fixture main body 1 substantially at the center of the embedding hole 3.

In this state, when the straight tube fluorescent lamp 11 is mounted on the lamp socket 10 attached to the socket base 7, when the base of the straight tube fluorescent lamp 11 is pushed into the lamp socket 10, the socket engaging portion of the luminaire main body 1 The socket base 7 tries to rotate around the engagement piece 15 engaged with 8, and the movement prevention piece 15 is pressed against the side surface of the embedding hole 3 more strongly, which suppresses the movement of the lighting fixture body 1. The gap of the embedding hole 3 is not unevenly positioned on one side of the luminaire main body 1, there is no fear of seeing the gap, and there is no risk of deformation of the mounting bracket.

Of course, the movement prevention piece may be provided directly on the lighting fixture main body 1 instead of being provided integrally on the socket base, or may be provided separately from the lighting fixture main body and the socket base.

[Effect of device]

Since the present invention is configured as described above, it has the following effects.

According to the embedded luminaire of the first aspect, there is no fear that the luminaire main body moves when the straight tube fluorescent lamp is mounted and the embedded hole is exposed to the outside as a gap or the mounting bracket is deformed.

According to the embedded luminaire of claim 2, the movement prevention piece may be provided integrally with the socket base, and it is not necessary to make the structure of the luminaire main body complicated, and the structure can be made simple. it can.

According to the embedded luminaire of claim 3, force is applied to the movement preventing piece so as to push the luminaire main body back to the movement preventing piece by the force when the straight tube fluorescent lamp is mounted in the lamp socket, and the above effect can be reliably achieved. .

[Brief description of drawings]

1 to 3 show an embodiment of the present invention, in which FIG. 1 is a perspective view of an essential part, FIG. 2 is a perspective view of a socket base, and FIG. 3 is a sectional front view of an essential part in an operating state. Is. FIGS. 4 to 7 show a conventional example for the present invention. FIG. 4 is a bottom view of a mounted state, FIG. 5 is a sectional front view of essential parts, and FIG. 6 is a sectional front view showing a mounting method. , FIG. 7 is a cross-sectional side view of essential parts showing another mounting method. 1 ... Lighting fixture body, 2 ... Mounting surface, 3 ... Embedding hole, 4
…… Bottom opening, 5 …… Outer collar, 6 …… Mounting bracket, 7 …… Socket base, 8 …… Socket base engaging part, 9 …… Through hole, 10
...... Lamp socket, 11 ...... Direct fluorescent lamp, 12 ...... Notch,
13 …… Mounting piece, 14 …… Engaging piece, 15 …… Move prevention piece.

Claims (3)

[Scope of utility model registration request] 1. An embedded device having a butt type lamp socket and a long hole having a major axis in the direction of embedding of the luminaire main body provided on the side surface of the luminaire main body equipped with a straight fluorescent lamp, and embedding in the mounting surface. The luminaire main body is embedded in the hole, and the luminaire main body is attached to the luminaire main body by sandwiching the attachment surface with a mounting bracket protruding from the long hole to the outside of the luminaire main body and an outer collar protruding from the lower edge opening of the luminaire main body. In the embedded luminaire attached to the lamp, the luminaire main body is made of an elastic material and elastically abuts the side surface of the embedded hole on the outer side of the luminaire main body in the tube axis direction of the straight fluorescent lamp mounted in the lamp socket. An embedded lighting fixture, characterized in that a movement prevention piece is provided for locating the light source substantially at the center of the embedded hole. 2. A movement prevention piece is integrally provided on a socket base mounted on a lighting fixture body, to which a lamp socket is attached, and protrudes outside the lighting fixture body from a through hole formed in a side surface of the lighting fixture body. The embedded luminaire according to claim 1, characterized in that: 3. The socket base is rotatably supported by the luminaire main body between the lamp socket and the movement preventing piece in a plane including the tube axis of the straight fluorescent lamp and parallel to a plane perpendicular to the mounting surface. The embedded luminaire according to claim 2, wherein the embedded luminaire is provided.