JPH065602B2 - lighting equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a lighting fixture for lighting a fluorescent lamp.

[Conventional technology]

In lighting equipment that lights a circular fluorescent lamp, for example,
As shown in FIG. 6, the fluorescent lamps 10 and 12 are held by holders 4, 6 and 8 provided on the lower surface side of the luminaire main body 2. In this example, the holder 4 includes the fluorescent lamps 10 and 1.
2 has a function as a power feeding means in addition to holding the fluorescent lamps 10 and 12 and a lighting circuit built in the lighting fixture body 2 on the contact surface side with the fluorescent lamps 10 and 12. A connector is provided for mating. Also,
The holders 6 and 8 have a size corresponding to each fluorescent lamp 10 and 12 and a length corresponding to the mounting position thereof,
A holding portion 14 that is curved corresponding to the cross-sectional shape of each fluorescent lamp 10 and 12 is provided on the end side thereof. The holders 6 and 8 elastically hold the fluorescent lamps 10 and 12, and are integrally formed of spring plates having appropriate elasticity for attaching and detaching the fluorescent lamps 10 and 12, and the mounting portions thereof. It is fixed to the luminaire main body 2 by means of fixing means 16 such as a rivet 18.

[Problems to be Solved by the Invention]

By the way, in such a lighting device, each fluorescent lamp 1
When attaching or replacing the fluorescent lamps 0 and 12, after connecting the connectors provided in the holder 4 to the plug portions of the fluorescent lamps 10 and 12, the fluorescent lamps 10 and 12 are respectively set with the holder 4 side as a fulcrum. The holders 6 and 8 are moved to the holding portion 14 side. The holders 6 and 8 are positioned outside the outer peripheries of the fluorescent lamps 10 and 12 in the open position where the fluorescent lamps 10 and 12 are removed in order to enhance the fixing strength with respect to the lighting fixture body 2. Therefore, while inclining the fluorescent lamps 10 and 12 to be attached to the holders 6 and 8, the holders 6 and 8 are drawn to the inside thereof, and then the shape of the holding portion 14 is provided from the inside of the fluorescent lamps 10 and 12. The holding portion 14 is pressed against the insides of the fluorescent lamps 10 and 12 to be attached by applying a force so as to spread.

For example, in the holder 6, bend it as shown by the one-dot chain line,
After the holding portion 14 is expanded as shown by the alternate long and short dash line, the holder 6 is pushed toward the outer peripheral direction of the fluorescent lamp 10 by applying the restoring force of the holder 6 and the holding portion 14 against the fluorescent lamp 10. The holding portion 14 is the fluorescent lamp 10.
Then, the fluorescent lamp 10 is attached to the holder 6.

The fluorescent lamps 10 and 12 are glass tubes, the holders 6 and 8 are metal plates, and the respective materials are different.
8 is a spring plate having a considerably strong restoring force, and work is performed on the suspended luminaire main body 2. For example, the fluorescent lamp 10 or the fluorescent lamp 12 is held by the left hand and the holder 6 or 8 is held by the right hand. It is necessary to support it. Therefore, if the holders 6 and 8 are operated incorrectly, the holders 6 and 8 will not be released when the hands are released.
The holders 6 and 8 suddenly hit the wall surfaces of the fluorescent lamps 10 and 12 due to the restoring force of the
2 damage, finger scratches, fluorescent lamps 10, 1
There was a problem in operational safety such as dropping 2. That is, in such holders 6 and 8, the fluorescent lamp 1
A single spring plate is used to grip and support 0 and 12, and a spring plate that is considerably strong to prevent the fluorescent lamps 10 and 12 from falling due to vibration and to secure sufficient strength to ensure safety. Is used, which makes its operability more difficult.

Further, in this type of lighting fixture, synthetic resin is used for its decorativeness and weight reduction, but since the holders 6 and 8 are metal plates, there is a feeling of strangeness, and the fluorescent lamp 1
Since the holding portion 14 that wraps around to the lower surface side of 0 and 12 blocks the light emitted from the fluorescent lamps 10 and 12, it becomes dark at that portion, and there is a drawback that the light irradiation efficiency is reduced.

The holders 6 and 8 are the fluorescent lamps 10,
Each holder 12 has to be arranged, and there is a disadvantage that the fixed portions of the holders 6 and 8 are deformed during transportation or packaging.

Therefore, it is an object of the present invention to provide a lighting fixture which has improved operability such as attachment and replacement of a fluorescent lamp, irradiation efficiency and mechanical strength, and has realized weight reduction.

[Means for Solving the Problems]

As shown in FIGS. 1 to 3, the luminaire of the present invention has a fixed recess (24) formed in the lower surface of the luminaire main body (2), and is fitted and fixed in the fixed recess. The holder insertion portion (insertion grooves 329, 330) is provided at a position corresponding to the fluorescent lamps (10, 12) with the fixing portion (32).
And a holder arm (30) including an insertion protrusion (412, 42) to be inserted into the holder insertion portion of the holder arm.
2) and a holder (41, 42) formed with gripping pieces (414, 416, 424, 426) for gripping the fluorescent lamp on both sides of the insertion protrusion, and the holder arm. Is a first arm piece (33A) that forms the fixing portion and the holder inserting section, and a second arm piece (33B) that is joined to the arm piece and is inserted into the holder inserting section to restrain the holder. It has a hollow interior.

[Action]

In the luminaire of the present invention, the holder arm is fixed by fitting the fixing portion into the fixing recess formed in the lower surface of the luminaire main body, and the holder is fixed by inserting the insertion protrusion into the holder insertion portion of the holder arm. Then, the holder is set at the mounting position of the fluorescent lamp. The holder is formed with gripping pieces for gripping the fluorescent lamp on both sides of the insertion protrusion, and the fluorescent lamp is held between the gripping pieces. Therefore, since the lower surface side of the fluorescent lamp is not covered with the holder, the irradiation efficiency is improved and the mechanical strength of the holder arm and the holder is increased due to the structure.

Then, after inserting the insertion protrusion of the holder into the insertion portion of the first arm piece, the second arm piece is joined to this arm piece, whereby the holder is fixed to the holder arm and the inside of the holder arm is hollow. As a result, the weight of the holder arm can be reduced and the structure can be simplified.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.

FIG. 1 shows an embodiment of the lighting equipment of the present invention.

The luminaire main body 2 that houses the lighting circuit and the like is formed by joining an upper cover 21 and a lower cover 22 formed of a metal plate with screws 23. The lower cover 22, which is a member on the lower surface side of the lighting fixture body 2, includes a plurality of holder arms 3
0 and 31 are attached. A fixing recess 24 for fixing the holder arm 30 is formed in the lower cover 22, and the holder arm 30 is firmly fixed to the fixing recess 24 by a fixing means such as a screw. Holder arm 3
0 has a first holder 41 on the lower side thereof and a second holder 42 on the upper side thereof according to the sizes of the fluorescent lamps 10 and 12, and inside thereof, the light emitted from the fluorescent lamp 10 is attached. A curved reflecting surface 34 is formed to reflect the light. In addition, the holder arm 31 includes the lighting fixture body 2
A connector for connecting the lighting circuit built in the and the fluorescent lamps 10 and 12 is installed.

As shown in FIG. 2, a fixing recess 24 for fixing the holder arm 30 is formed in the lower cover 22 of the luminaire main body 2 by molding the lower cover 22. Through holes 25 and 26 are formed.

The holder arm 30 is formed of a first arm piece 33A made of synthetic resin, and a fixing portion 32 which is fitted into the fixing concave portion 24 of the lower cover 22 is formed at the upper end portion of the holder arm 30. The fixing portion 32 has a through hole 25.
3 which is inserted into the holder and positions the holder arm 30.
A U-shaped notch 323 is formed together with 22.
In addition, the arm pieces 33A have internal spaces 324, 325.
And a nut fixing portion 327 for fixing a nut 326 as a fixing means toward the notch 323 is formed on the inner surface side of the fixing portion 32. Therefore, the screw 328 can be screwed into the nut 326 fixed to the nut fixing portion 327 from the inner surface side of the lower cover 22 through the through hole 26 to fix the holder arm 30 in the fixing recess 24 of the lower cover 22.

The holder arm 30 has a curved inner surface for mounting the fluorescent lamps 10 and 12, and has a lower end that is inserted as a holder insertion portion for inserting the insertion protrusion 412 of the holder 41. An insertion groove 330 as a holder insertion portion for inserting the insertion protrusion 422 of the holder 42 is formed in the groove 329 and the curved portion in the middle thereof. Each of the insertion grooves 329 and 330 corresponds to the insertion protrusion 4 of the holder 41 or 42.
Projection 3 facing the lower surface side corresponding to the shape of 12, 422
31 and a wall portion 332 having a U-shaped cross section, which is formed on the protrusion 331 at a constant interval. Therefore, the holders 41, 4 are inserted into the insertion grooves 329, 330.
After inserting the insertion protrusions 412, 422 of the second arm piece 3
If 3A is closed by the second arm piece 33B, the insertion protrusion 41
The holders 41 and 42 are fixed to the holder arm 30 by holding the holders 2 and 422 inside the insertion grooves 329 and 330.

A plurality of locking holes 333 are formed in the arm piece 33A, and the locking protrusions on the arm piece 33B side are inserted into the locking holes 333 to join the arm pieces 33A and 33B to each other to form a hollow. A holder arm 30 forming a body is formed.

In addition, the holder 41 is integrally formed with curved gripping pieces 414 and 416 on both sides of the insertion projection 412. Similarly, the holder 42 has both sides of the insertion projection 422 centered on the insertion projection 422. The holding pieces 424, 426 having a curved shape are integrally formed with each other, and each of the holders 41, 42 is formed of a spring plate having elasticity necessary for obtaining the holding force of the fluorescent lamps 10, 12 to be fixed. ing.

According to such a configuration, as shown in FIG. 3, if the holder arm 30 is fixed to the luminaire main body 2 with the screw 328, the holder 41 attached to the holder arm 30,
The predetermined fluorescent lamps 10 and 12 can be attached to 42.

The fixing of the fluorescent lamps 10 and 12 to the holders 41 and 42 of the holder arm 30 is performed after connecting the sockets of the fluorescent lamps 10 and 12 to the connectors on the holder arm 31 side.
As shown in FIG. 4, by pushing up the fluorescent lamps 10 and 12 in the directions indicated by arrows A and B, the fluorescent lamp 10 is held between the gripping pieces 414 and 416 of the holder 41, and
The fluorescent lamp 1 is held between the holding pieces 424 and 426 of the holder 42.
2 is sandwiched. In that case, the gripping pieces 414, 416,
Alternatively, since the gripping pieces 424 and 426 are pushed and spread by hitting the fluorescent lamps 10 and 12 that have been pushed up, it is not necessary to manually open the holder as in the conventional case, and the holders 41 and 42 can be fluorescently adjusted by one-touch operation. Lamp 10, 1
2 can be easily attached. Therefore, the work of attaching the fluorescent lamps 10 and 12 is facilitated, the operability thereof is improved, and the safety is improved.

In such a holder arm 30, the fluorescent lamp 1
The light L ₁ emitted from _No. 2 is reflected by the inner reflection surface 34 of the holder arm 30 and directed in the irradiation direction, and the lower surfaces of the holders 41 and 42 are open with their lower ends being free ends. The light L ₂ emitted from each of the fluorescent lamps 10 and 12 is
It is not irradiated downward from the open space and is not shielded, and unlike the conventional case, it is not partially darkened by the light shielding by the holder. Therefore, the light irradiation efficiency is improved.

Further, the holder arm 30 has a hollow inside and is lightweight, and moreover, the holders 41 and 42 are firmly fixed due to the structure thereof, and the mechanical strength thereof is enhanced. And
The holder arm 30 has its fixing portion 32 fixed to the lighting fixture main body 2
Since it is fitted and fixed in the fixing recess 24, the positioning thereof is facilitated and the mechanical strength thereof is enhanced.

〔The invention's effect〕

As described above, according to the present invention, the following effects can be obtained.

(a) Since a holder whose lower end is a free end is attached to a holder arm protruding from the bottom surface of the lighting fixture body, it is possible to attach and detach the fluorescent lamp from below the holder.
Operability such as attachment and replacement of the fluorescent lamp can be improved, and since the lower part of the holder is opened as a free end, the light irradiation efficiency can be improved.

(b) Since the fixing recess is formed on the lower surface of the luminaire main body, the holder arm is fitted and fixed in this fixing recess, and the fixing protrusion is inserted into the holder insertion part to fix the holder to the holder arm. The mechanical strength of the arm and the holder can be increased, and the safety can be improved in addition to the operability.

(c) Since the holder arm is formed by joining the first and second arm pieces and the inside thereof is formed to be hollow,
It is possible to reduce the weight of the holder arm and simplify the structure.

[Brief description of drawings]

1 is a partially cutaway side view showing an embodiment of the lighting equipment of the present invention, FIG. 2 is an exploded perspective view showing a holder arm and a holder in the lighting equipment shown in FIG. 1, and FIG. 1 is a cross-sectional view showing a part of a lighting fixture main body, a holder arm and a holder in the lighting fixture shown in FIG. 1, FIG. 4 is a view showing a method of mounting a fluorescent lamp in the lighting fixture shown in FIG. 1, and FIG. The figure which shows the optical path length in the holder arm and holder part of the lighting fixture shown in FIG. 1, and FIG. 6 is a partially notched side view which shows the conventional lighting fixture. 2 ... Lighting device main body 10, 12 ... Fluorescent lamp 24 ... Fixed recess 30 ... Holder arm 41, 42 ... Holder 32 ... Fixed portion 33A ... First arm piece 33B・ ・ ・ Second arm piece 329,330 ・ ・ ・ Insertion groove (holder insertion section) 412,422 ・ ・ ・ Insertion protrusion 414,416,424,426 ... Gripping piece

Claims (1)

[Claims] 1. A fixing recess formed in a lower surface of a main body of a lighting fixture, and a fixing portion fitted and fixed in the fixing recess,
A holder arm having a holder insertion portion at a position corresponding to the fluorescent lamp, an insertion protrusion to be inserted into the holder insertion portion of the holder arm, and gripping pieces for grasping the fluorescent lamp on both sides of the insertion protrusion. A holder provided with the above, wherein the holder arm includes a first arm piece having the fixing portion and the holder inserting portion,
A second arm piece for fixing the holder to the holder arm by constraining the insertion protrusion that is joined to the arm piece and inserted into the holder insertion section, and has a hollow inside. And lighting equipment.