JPH06131908A - lighting equipment - Google Patents

Abstract

(57) [Summary] [Object] An object of the present invention is to obtain a highly versatile lighting fixture capable of changing the position of a straight tube fluorescent lamp with respect to a chassis. [Structure] A chassis 11 having lamp socket mounting portions 17 at both ends in the longitudinal direction, a straight tube fluorescent lamp 28 having substantially the same length as the chassis 11, and a lamp pin of the lamp 28 is inserted into one end. And a shaft-shaped chassis fitting portion 27 that is fitted into the mounting portion 17 at the other end portion that overlaps the end face in the longitudinal direction of the chassis 11, and the fitting portion 17 and the fitting portion. A lamp socket 21 rotatably mounted around an axis line 22 extending in the longitudinal direction of the chassis 11 by fitting with the portion 27, the chassis 11 and the socket 21 provided in the socket 21, and the socket 21 extends in the width direction of the chassis 11. Socket positioning means 20, 32 for holding the socket 21 are provided at the first position and the second position extending in the thickness direction of the chassis 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device using a straight tube fluorescent lamp as a light source.

[0002]

2. Description of the Related Art FIGS. 11 and 12 show conventional direct mounting type straight tube fluorescent lamp luminaires. Figure 1
In the luminaire shown in FIG. 1, lamp sockets 2 projecting downward are fixed to both ends in the longitudinal direction of a chassis 1, and a reflector plate having holes (not shown) through which these sockets 2 penetrate is provided at both ends. 3 is screwed to the lower surface of the chassis 1, and a straight tube fluorescent lamp 4 whose both longitudinal ends are supported by the lamp socket 2 is arranged below the reflection plate 3. This luminaire is used by being attached to the ceiling surface or the like from below.

The luminaire shown in FIG. 12 has a chassis 5
The lamp sockets 6 projecting laterally are fixed to both ends in the longitudinal direction of the chassis 1, and the reflection plates 7 having an L-shaped cross section having holes (not shown) through which these sockets 6 penetrate are formed on the side surface of the chassis 1. A straight tube fluorescent lamp 8 which is screwed to the side of the vertical piece 7b below the horizontal side 7a of the reflector 7 and whose longitudinal ends are supported by the lamp socket 6 is arranged. It is a composition. This luminaire is used by being attached to the ceiling surface or the like from below.

In both of these luminaires, the lamp sockets 2, 6 are mounted on the socket mounting portions formed at the longitudinal ends of the chassis 1, 5 at the site where the luminaire is mounted. It is attached by sliding the chassis 1 and 5 in the longitudinal direction.

In the lighting fixtures shown in FIGS. 11 and 12, the positions of the fluorescent lamps 4 and 8 with respect to the chassis 1 and 5 differ depending on the protruding direction of the lamp sockets 2 and 6 with respect to the chassis 1 and 5. So they are used accordingly.

[0006]

As described above, in the prior art, since the lamp socket is immovably fixed to the chassis, the position of the fluorescent lamp with respect to the chassis can be determined by one instrument, the application of the instrument, etc. It is impossible to choose according to Therefore, conventionally, there is a problem in that separate lighting fixtures shown in FIGS. 11 and 12 are required, which increases the manufacturing cost.

It is an object of the present invention to provide a highly versatile lighting fixture capable of changing the position of a straight tube fluorescent lamp with respect to a chassis.

[0008]

In order to achieve the above object, the lighting apparatus of the present invention comprises a chassis having lamp socket mounting portions at both ends in the longitudinal direction, and a straight tube having substantially the same length as the chassis. A fluorescent lamp, and a lamp pin receiving portion into which the lamp pin of the straight tube fluorescent lamp is inserted, and the other end portion overlapping the end surface in the longitudinal direction of the chassis is fitted to the lamp socket mounting portion. A lamp socket having a chassis fitting portion, wherein the lamp socket mounting portion and the chassis fitting portion are fitted so as to be rotatable about an axis extending in the longitudinal direction of the chassis; A first position provided on the lamp socket, the lamp socket extending in a width direction of the chassis, and extending in a direction intersecting a thickness direction of the chassis. That is obtained by including a socket positioning means for holding the lamp socket to a second position.

[0009]

In the structure of the luminaire of the present invention, since the lamp socket supporting the straight tube fluorescent lamp is mounted on the chassis by fitting the chassis fitting portion to the lamp socket mounting portion of the chassis, The lamp socket is rotatable about an axis extending in the longitudinal direction of the chassis, and the lamp socket can be moved between a first position extending in the width direction of the chassis and a second position extending in a direction intersecting the thickness direction of the chassis. As a result, the position of the straight tube fluorescent lamp supported by the lamp socket with respect to the chassis can be changed according to the application of the lighting equipment. The socket positioning means holds the lamp socket at the first position or the second position when the lamp socket is pivotally arranged at the first position or the second position, and prevents the lamp socket from being accidentally pivoted.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Reference numeral 11 in the drawing denotes a chassis, which has a chassis main body 12 and chassis end members 13 fitted to both ends of the main body 12 in the longitudinal direction.

The chassis body 12 is formed by bending a metal plate into a flat tubular shape. Inside the chassis body 12, a terminal block (not shown) and electronic parts such as transistors as shown in FIG. 1 are used. The fluorescent lamp lighting unit 14 and the like, which are composed of the electronic circuit, are housed. Lighting unit 14
Is flat. The chassis body 12 penetrates the first wall 12a (see FIGS. 3 and 4) of the body 12 and the second wall 12b.
(See FIGS. 3 and 4) and is directly attached to the ceiling surface or the like via a screw (not shown) that is screwed into the ceiling surface or the like, and the screw holes in the first wall 12a are ex post facto. It is closed with a rubber plug (not shown).
Needless to say, the second wall 12b is provided with necessary holes such as a hole for drawing in the power supply line, which is not shown.

The pair of chassis end members 13 are integrally molded products of synthetic resin, and as shown in FIGS. 3 and 4, the fitting portions 15 are fitted inside the end portions of the chassis body 12.
And a lid portion 16 that is substantially flush with the outer surface of the chassis body 12 and closes the end opening of the chassis body 12. The chassis end member 13 is the chassis body 12
It is fixed via a screw (not shown) that is screwed into the fitting portion 15 through the above.

A lamp socket mounting portion 17 is provided at one end portion of the lid portion 16 in the longitudinal direction (in other words, the width direction of the chassis 11). As shown in FIGS. 3, 4, and 7, the mounting portion 17 is formed of a stepped hole including a small diameter hole portion 17a and a large diameter hole portion 17b. A step portion 18 is formed between the fitting portion 15 and a portion of the lid portion 16 that forms the small diameter hole portion 17 a.

On the inner surface of the portion of the lid portion 16 where the large diameter hole portion 17b is formed, a stopper projection 19 which is flush with the inner surface of the small diameter hole portion 17a is integrally formed. Further, the small diameter hole portion 1
On the inner surface of 7a and the tip surface of the stopper projection 19, there are provided nodal grooves 20 having a V-shaped cross section at intervals of 30 °, for example.

Lamp sockets 21 are attached to both longitudinal ends of the chassis 11 so as to be rotatable around an axis 22 (see FIGS. 1 and 4) extending in the longitudinal direction of the chassis 11.

More specifically, as shown in FIGS. 3 to 6, the lamp socket 21 has an arm composed of a first member 23 and a second member 24 which is attached by closing the opening of the member 23 with a screw or the like. It has a socket body 25 in a shape of. A lamp pin receiving portion 26 is attached to one end of the socket body 25 in the longitudinal direction, and a chassis fitting portion 27 is provided to the other end.

As shown in FIG. 5, the lamp pin receiving portion 2
6 has a groove 26a into which a lamp pin (not shown) of the straight tube fluorescent lamp 28 shown in FIG. 1 is inserted,
The socket body 25 is rotatably provided. A pair of terminal metal fittings (in the drawing) for contacting and separating the lamp pins are built in the socket body 25, and the end portions of these metal fittings on the lamp pin receiving portion side are changed from the state shown in FIG. 5 to the lamp pin receiving portion. When 26 is rotated about 90 °, it is elastically deformed by the engagement with the lamp pin and is pressed against the lamp pin.

The chassis fitting portion 27 has a shaft shape and is projected. The other end of the terminal fitting (not shown) forms a self-locking terminal portion, and this terminal portion is the chassis fitting portion 2
It is located inside 7. A pair of lead wire through holes 29 is provided on the front end surface of the chassis fitting portion 27. These through holes 29 face the self-locking terminal portion. Therefore, the in-apparatus lead wire 33 (see FIG. 5) connected to the terminal block or the lighting unit 14 is connected to the lead wire through hole 2
These lead wires 33 are connected to the self-locking terminal portion by being inserted into the connector 9.

The chassis fitting portion 27 is formed to be longer than the thickness of the lid portion 16, and the fitting portion 27 for this is formed.
Is fitted inside the socket mounting portion 17, and the lamp socket 21 is rotated around this shaft-shaped chassis fitting portion 27. Chassis fitting part 2
A plurality of retaining projections 30 are integrally provided on the outer peripheral surface of the distal end portion of 7. These protrusions 30 are socket mounting portions 1
7 has an inclined surface to facilitate insertion. The retaining projections 30 are engaged with the step 18, and the engagement prevents the lamp socket 21 from accidentally coming off from the chassis end member 13.

The chassis 11 of the lamp socket 21
In the manufacturing plant, after connecting the in-apparatus lead wire 29 in the state shown in FIG. 9, the chassis end member 13 to which the lamp socket 21 is attached is attached to the chassis body 12, and the chassis 11 is attached. It is implemented by assembling. Therefore, in this lighting fixture, the lamp socket 2 at the installation site is installed.
Since it is not necessary to attach 1 to the chassis 11,
It is possible to improve the installation workability of lighting equipment at the construction site.

On the outer peripheral surface of the projecting base portion of the chassis fitting portion 27, a stopper projection portion 31 which projects into the large diameter hole portion 17b is integrally provided. The protrusion 31 is for hitting the stopper protrusion 19 and restricts the rotation of the lamp socket 21 around the axis 22. By this action, in a free state (a state before being attached to a ceiling surface or the like), for example, about 270 °. The lamp socket 21 is rotated within the angle range θ (see FIG. 8). Such rotation restriction is effective for preventing the internal lead wire 33 from being excessively twisted.

On the outer peripheral surface of the chassis fitting portion 27, a nodal rib 32 is integrally provided so as to be located between the retaining projection 30 and the stopper projection 31. For example, a pair of nodal ribs 32 are provided at positions corresponding to the radial direction of the chassis fitting portion 27, and these are engaged with and disengaged from the nodal groove 20 to determine the position of the lamp socket 21 with respect to the chassis 11. There is. The nodal rib 32 and the nodal groove 20 form a socket positioning means, and the engagement and disengagement of the ribs 32 and the groove 20 are performed by elastic deformation of the chassis end member 13 and the chassis fitting portion 27.

As shown in FIG. 1, the lamp socket 21
Is substantially equal to the thickness B of the chassis 11, and the length C of the lamp socket 21 is shorter than the width D of the chassis 11. The length of the straight tube type fluorescent lamp 28 whose both ends are supported by the lamp socket 21 is substantially equal to the length of the chassis 11 in the longitudinal direction. Due to the above-described dimensional relationship, the lamp socket 21 can be arranged such that the entire lamp socket 21 overlaps the end surface of the end member 12 of the chassis 11 when packaging the lighting fixture, as shown in FIG. Therefore, the lamp pin receiving portion 26 of the lamp socket 21 is not exposed, and the safety of the socket 21 can be secured for packaging. Moreover, since the packing posture can be reduced by the overlapping, it is advantageous to reduce the cost of packing and transportation.

Since the lamp socket 21 for supporting the fluorescent lamp 28 is rotatable with respect to the chassis 11 in this luminaire, the lamp socket 21 is mounted in the longitudinal direction of the chassis end member 13 as shown by the solid line in FIG. The lamp socket 2 can be arranged at a first position so as to intersect at a right angle with respect to the lamp socket 2 as shown by a chain double-dashed line in FIG.
1 extends in the longitudinal (width) direction of the chassis end member 13
Can be placed in any position. Then, at these positions, the nodal ribs 32 are engaged with the nodal grooves 20 at the corresponding positions, so that the lamp sockets 21 are positioned at their respective positions so as not to be rotated carelessly. It

Therefore, according to this luminaire, by positioning the lamp socket 21 at the first position, the straight tube fluorescent lamp 28 is placed in the chassis 1 in FIG.
It can be placed below 1. Further, by positioning the lamp socket 21 at the second position, the fluorescent lamp 2
8 can be arranged side by side on the chassis 11 in FIG. As described above, the position of the fluorescent lamp 28 with respect to the chassis 11 can be changed in spite of being one lighting fixture, so that it is possible to obtain an optimal lamp arrangement according to the installation conditions of this lighting fixture and the like.

Incidentally, in the case of this embodiment, the lamp socket 2 is further provided every 30 ° between the first position and the second position.
Since the 1 and the fluorescent lamp 28 can be positioned, the versatility of the position of the fluorescent lamp 28 with respect to the chassis 11 can be further secured, and the versatility can be further enhanced.

FIG. 10 shows the main part of another embodiment.
In this embodiment, the lamp sockets 21 are rotatably attached to both ends of the chassis end member 33 in the longitudinal direction. The mounting structure of these sockets 21 is the same as that of the one embodiment. In addition, the chassis body 12 is the same as in FIGS.
The fluorescent lamp lighting unit having the same shape and size as the chassis main body of the lighting fixture shown in FIG. The size of the fluorescent lamp lighting unit is the same whether it is for one lamp or for two lamps, and since the configuration other than the above is the same as that of the above-mentioned one embodiment, its description is omitted.

Also in such a lighting fixture for two lights, the lamp socket 21 rotatably attached about the axis extending in the longitudinal direction of the chassis 11 is provided at the first position extending in the width direction of the chassis 11. Since it is possible to rotate the chassis 11 to the second position extending in the direction intersecting the thickness direction of the chassis 11 and hold the chassis 11 at these positions by the socket positioning means, the intended object of the present invention can be achieved. Moreover,
In the case of using this embodiment, the chassis body 12 of the chassis 11 can be used as a common component for the lighting fixture for one light and the lighting fixture for two lights.

The present invention is not limited to the above-described embodiments, but specific structures and shapes of the chassis, the socket mounting portion, the lamp socket, the lamp pin receiving portion, the chassis fitting portion, the socket positioning means, etc. The position, the material, and the like can be configured and implemented in various modes without departing from the spirit of the present invention.

[0030]

As described above in detail, according to the lighting apparatus of the present invention, the lamp socket supporting the straight tube fluorescent lamp can be rotated with respect to the chassis about the axis extending in the longitudinal direction of the chassis. And a lamp positioning means for extending the lamp socket in the width direction of the chassis.
Since the socket is held in the second position extending in the position and in the direction intersecting the thickness direction of the chassis, the position of the straight tube fluorescent lamp with respect to the chassis can be changed by rotating the lamp socket. ,
A highly versatile lighting fixture can be provided.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a lighting fixture for a single lamp according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a posture of the lighting fixture according to the embodiment at the time of packaging.

FIG. 3 is an exploded perspective view showing a configuration of a main part of the lighting fixture according to the embodiment.

FIG. 4 is a cross-sectional view showing a configuration of a main part of the lighting fixture according to the embodiment.

FIG. 5 is a perspective view showing a configuration of a lamp socket of the lighting equipment according to the embodiment.

FIG. 6 is a front view showing a partial configuration of a lamp socket of the lighting fixture according to the embodiment.

FIG. 7 is a side view showing the configuration of part of the chassis of the lighting fixture according to the embodiment.

FIG. 8 is a diagram showing the lighting fixture according to the embodiment as viewed from the arrow Z direction in FIG. 1.

FIG. 9 is an exploded perspective view showing a part of the lighting fixture according to the embodiment.

FIG. 10 is an exploded perspective view showing a part of a two-lamp lighting fixture according to the present invention.

FIG. 11 is a perspective view showing an example of a conventional lighting fixture.

FIG. 12 is a perspective view showing another example of a conventional lighting fixture.

[Explanation of reference numerals] 11 ... Chassis, 17 ... Lamp socket mounting portion, 17
a ... small-diameter hole portion, 17b ... large-diameter hole portion 17b, 20 ... node groove (socket positioning means), 21 ... lamp socket, 2
2 ... Axis line, 26 ... Lamp pin receiving part, 27 ... Chassis fitting part, 28 ... Fluorescent lamp, 32 ... Nodal rib (socket positioning means).

Claims (1)

[Claims] 1. A chassis having lamp socket mounting portions at both ends in the longitudinal direction, a straight tube fluorescent lamp having substantially the same length as the chassis, and a lamp pin of the straight tube fluorescent lamp at one end. In addition to having a lamp pin receiving portion to be inserted, a chassis fitting portion that is fitted to the lamp socket mounting portion is provided at the other end portion that overlaps the longitudinal end surface of the chassis, and the lamp socket mounting portion and the chassis fitting portion. A lamp socket mounted so as to be rotatable around an axis extending in the longitudinal direction of the chassis by fitting with a member; and a first position provided in the chassis and the lamp socket, the lamp socket extending in the width direction of the chassis. And a socket positioning hand for holding the lamp socket at a second position extending in a direction intersecting the thickness direction of the chassis. A luminaire with steps.