JPH0821252B2 - Fixing device for compact fluorescent lamps - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a fixing device for a compact fluorescent lamp.

[0002]

2. Description of the Related Art Conventionally, an incandescent light bulb has been used as a light source used as a temporary lighting fixture at a construction site or a work place. Electric bulb-shaped fluorescent lamps, which require only electricity, are attracting attention in terms of economy.

A light bulb-shaped fluorescent lamp has a fluorescent tube bent in two or four and bent or bridge-connected, and is fixed by being screwed into a socket like a conventional incandescent lamp. .

[0004]

However, in the luminaire using such a bulb-shaped fluorescent lamp, the fluorescent tube is longer than the incandescent bulb, and the inverter as the power control unit is a fluorescent tube. Since the integrated unit has a large weight, there is a problem in that the fluorescent lamp is likely to be damaged by an impact or vibration applied to the casing, or loosening of the socket of the fluorescent lamp is likely to occur.

The present invention has been made in view of the above problems, and an object thereof is to improve impact resistance and prevent loosening of a fluorescent lamp socket in a lighting fixture in which a compact fluorescent lamp is housed in a casing.

[0006]

DISCLOSURE OF THE INVENTION The present invention relates to a light bulb type fluorescent lamp fixing device in which a light bulb type fluorescent lamp is housed in a casing, and a socket for connecting the light bulb type fluorescent lamp is provided in a ceiling portion of the casing. , An anti-vibration strut made of an elastic material is interposed between the lower part of the fluorescent tube and the bottom part of the casing, and this anti-vibration strut has its upper part fitted to the lower end part of the fluorescent tube, and its lower part is a locking means. Through the bottom of the casing.

[0007]

The upper part of the compact fluorescent lamp is connected to the casing through the socket, and the lower part is elastically supported by the casing through the vibration-proof struts. The vibration-proof struts support the lower end of the fluorescent tube at a predetermined position of the casing, absorb vibrations of the fluorescent lamp, and prevent loosening of the socket of the fluorescent lamp.

If the luminaire is accidentally dropped,
The shock applied to the casing is absorbed by elastic deformation of the vibration-proof struts, and it is possible to prevent the shock from being transmitted to the fluorescent lamp and prevent damage to the fluorescent lamp.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, the casing of the luminaire 10 is composed of an umbrella-shaped shade 1 and a bottomed cylindrical globe 2 that is connected to the lower part of the shade 1, and the interior of the shade 1 and the globe 2. A fluorescent tube 5 of a compact fluorescent lamp is housed in the center of the defined space.

The shade 1 is made of an aluminum material or the like, while the globe 2 is made of a transparent material such as acrylic.
Both are fastened via a plurality of bolts 24 and a metal fitting 22 with which the bolts are screwed.

A socket 4 is attached to the ceiling of the shade 1 via a pedestal 40. A bulb-type fluorescent lamp is screwed into the socket 4 for connection. A cord (not shown) is connected to the socket 4, and an opening 13 for inserting the cord is formed in the ceiling of the shade 1. Cord is opening 1
3 is inserted through the bush 12. The luminaire 10 is suspended by this code.

An inverter 3 as a power control unit is integrally formed on the fluorescent tube 5. A filament (not shown) is arranged above the fluorescent tube 5 so that the fluorescent tube 5 is caused to emit light by a high-frequency current sent to the filament via the inverter 3.

As shown in FIG. 2, the fluorescent tube 5 is provided with four straight tube portions 8 arranged side by side, and the lower portion of each of them is a bridge 9.
Are connected to each other via.

A ventilation port 7 is formed on an annular step portion 20 formed on the globe 2, and a plurality of louvers 11 are formed on the shade 1, which prevent rainwater and dust from entering through the casing and the casing. The outside air is taken in to prevent the casing from overheating. The annular step portion 2 of the globe 2
The number 0 may be eliminated and a large number of ventilation openings may be formed on the cylindrical side surface of the globe 2.

A columnar vibration-proof strut 6 is interposed between the bottom of the globe 2 and the lower portion of the fluorescent tube 5. The vibration-proof struts 6 are formed of an elastic material such as silicon rubber which is less likely to be deteriorated by ultraviolet rays and ozone.

As a means for locking the lower part of the vibration isolating strut 6 to the bottom of the glove 7, a cylindrical boss 25 is formed at the bottom of the glove 2 while the boss 25 is formed at the center of the vibration isolating strut 6. A hole 32 for inserting is inserted and formed. The boss 25 is formed on the center line of the globe 2.

As shown in FIG. 3, four groove portions 31 are formed on the outer peripheral surface of the columnar vibration isolating strut 6 in an arc shape along the outer peripheral surface of each straight tube portion 8 of the fluorescent tube 5. It By fitting the upper portion of the vibration isolating strut 6 inside the fluorescent tube 5, each groove 31 is partially brought into close contact with the outer peripheral surface of each straight tube 8.

The upper end surface 33 of the vibration isolation strut 6 is the fluorescent tube 5.
Is connected to each bridge 9.

Next, the operation will be described.

The upper portion of the fluorescent tube 5 is screwed into the socket 4 via the inverter 3, and the lower portion thereof is elastically supported via the vibration-proof struts 6. Anti-vibration strut 6
Thereby, the lower end of the fluorescent tube 5 is held at the center of the globe 2, and the vibration of the fluorescent tube 5 is absorbed, so that the fluorescent tube 5 can be prevented from rotating and loosening with respect to the socket 4.

When the luminaire 10 is accidentally dropped, the shock applied to the globe 2 is absorbed by elastic deformation of the vibration-proof struts 6, and this shock is suppressed from being transmitted to the fluorescent tube 5. It is possible to prevent the fluorescent tube 5 from being damaged.

Next, another embodiment shown in FIG. 4 and FIG.
A frame portion 34 is integrally formed on the upper portion of the cylindrical vibration-proof strut 16 to fit the outer peripheral portion of the lower end cylindrical surface of each straight tube portion 8 of the fluorescent tube 5. The parts corresponding to those in FIGS. 1 and 2 are designated by the same reference numerals.

In this case, the upper end surface 3 of the vibration isolation strut 16 is
5 is joined to each bridge 9 of the fluorescent tube 5 and each straight tube portion 8 of the fluorescent tube 5 is fitted to the frame portion 34 of the vibration isolating strut 16, so that the fluorescent tube 5 is attached to the glove via the vibration isolating strut 16. It is elastically supported by 2, and it is possible to prevent the fluorescent tube 5 from being loosened or damaged.

Next, another embodiment shown in FIG. 6 and FIG.
The fluorescent tube 45 includes two U-shaped tubes 48 bent in a U-shape,
Two bridges 49 connecting the respective U-shaped tubes 48 are formed, while a box-shaped seat portion 36 for fitting the outer peripheral surface of the curved tube portion 46 of the fluorescent tube 45 to the upper portion of the cylindrical vibration-proof strut 26. It is formed integrally. The parts corresponding to those in FIGS. 1 and 2 are designated by the same reference numerals.

In this case, the seat portion 46 of the vibration isolation strut 26 is
By seating each curved tube portion 46 of the fluorescent tube 45,
The fluorescent tube 45 is elastically supported by the globe 2 via the vibration-proof struts 26, so that the fluorescent tube 45 can be prevented from being loosened or damaged.

Next, another embodiment shown in FIG. 8 is one in which the present invention is applied to a portable lighting device 50.

The casing of the luminaire 50 has a hemispherical shade 51 and a net-like globe 5 connected to the lower part thereof.
2, the fluorescent tube 5 is housed in the center of the space defined by the shade 51 and the globe 52. A handle (grip) 55 is coupled to the shade 51 so that the lighting device 50 can be carried with the handle 55.

A cord 54 is connected to the socket 4 fixed to the ceiling portion of the shade 51, and the cord 54 extends through the handle 55 through the handle 55 and is not shown in the figure through a plug 58 provided at its tip. It is designed to be connected to a power source.

A hook 57 is formed at the tip of the handle 55, and the lighting fixture 51 can be hung through the hook 57.

The fluorescent tube 5 is provided with four straight tube portions 8 arranged side by side, and the respective lower portions thereof are connected to each other via a bridge 9.

A column-shaped vibration-proof strut 56 is interposed between the bottom of the globe 52 and the lower portion of the fluorescent tube 5. The vibration isolation struts 56 are formed of an elastic material such as silicon rubber.

A cylindrical boss 65 is provided at the bottom of the globe 52.
Are formed to project. The boss 65 is formed on the center line of the globe 52.

As shown in FIG. 9, the vibration isolation struts 56 are also provided.
A hole 62 into which the boss 65 is fitted is formed in the center portion of the. A wedge portion 64 that fits inside the fluorescent tube 5 is formed integrally with the tip of the vibration-proof strut 56 in a tapered shape. Wedge 64
The front end surface 63 of the is connected to each bridge 9 of the fluorescent tube 5.

In this case, the luminaire 51 can be carried, the shock resistance applied to the reticulated globe 52 is absorbed by the vibration-proof struts 56 to improve the shock resistance, and the fluorescent tube 5 is prevented from loosening with respect to the socket 4. You can

The luminaire to which the present invention is applied is not limited to a suspended type or a portable type, and a casing for accommodating a fluorescent lamp of a light bulb type is installed in a ceiling portion, a side wall portion or an upper wall portion of a building. It is also possible to apply to what is fixed to.

Next, in another embodiment shown in FIG. 10, as means for locking the lower portion of the vibration isolating strut 70 to the bottom of the casing 67, the vibration isolating strut 70 is provided with a flange portion 71 that expands annularly from the lower portion thereof. Formed integrally with flange 71
While a plurality of holes 72 are formed in the casing 67, a protrusion 68 that fits into the hole 72 of the vibration isolating strut 70 is integrally formed in the casing 67.

The tip portion of the projection 68 is formed in a ball-like shape when the casing 67 is molded.
Will be locked out. The tip of the protrusion 68 may be heat-treated to fit the anti-vibration strut 70, and may be expanded into a ball shape.

Next, in another embodiment shown in FIG. 11, as a means for locking the lower portion of the vibration isolating strut 70 to the bottom portion of the casing 66, the vibration isolating strut 70 is provided with a flange portion 71 that expands annularly from the lower portion thereof. The flange portion 71 is integrally formed and is joined to the casing 66 through a plurality of rivets 73.

A plurality of holes 72 are formed in the flange portion 71 of the vibration isolating strut 70, while holes 69 are formed in the casing 66 at positions corresponding to the holes 72, and the rivet 73 penetrates the holes 72, 69. And fix both by caulking.

Next, in another embodiment shown in FIG. 12, as a means for locking the lower part of the vibration isolating strut 77 to the bottom of the casing 75, the projection 74 integrally formed on the vibration isolating strut 77 is replaced with the casing 75. It is to be fitted into the hole 76 formed in the.

In this case, productivity can be improved by simplifying the shape of the casing 75.

[0043]

As described above, according to the present invention, the light bulb type fluorescent lamp is housed in the casing, and the light bulb type fluorescent lamp fixing device is provided with the socket for connecting the light bulb type fluorescent lamp to the ceiling portion of the casing. In the above, a vibration-proof strut made of an elastic material is interposed between the lower part of the fluorescent tube and the bottom of the casing, and the upper part of the vibration-proof strut is fitted to the lower end of the fluorescent tube and the lower part is locked. Since it is locked to the bottom of the casing via the means, the fluorescent lamp is elastically supported by the casing via the vibration-proof struts, so that even if shock or vibration is applied when this lighting fixture is used at a construction site, etc. It is possible to prevent the damage of the fluorescent lamp and the loosening of the socket of the fluorescent lamp, which contributes to the improvement of the practicality and reliability of the luminaire that uses the compact fluorescent lamp and has high efficiency and low power consumption. Door can be.

[Brief description of drawings]

FIG. 1 is a sectional view of a lighting fixture showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a perspective view of a vibration isolation strut of the same.

FIG. 4 is a cross-sectional view of a lighting fixture showing another embodiment.

5 is a sectional view taken along line BB of FIG.

FIG. 6 is a cross-sectional view of a lighting fixture showing still another embodiment.

FIG. 7 is a sectional view taken along the line CC of FIG.

FIG. 8 is a sectional view of a luminaire showing still another embodiment.

FIG. 9 is a perspective view of a vibration isolation strut of the same.

FIG. 10 is a sectional view of a luminaire showing still another embodiment.

FIG. 11 is a cross-sectional view of a lighting fixture showing still another embodiment.

FIG. 12 is a cross-sectional view of a lighting fixture showing still another embodiment.

[Explanation of symbols]

 1 Shade (casing) 2 Globe (casing) 3 Inverter 4 Socket 5 Fluorescent tube 6 Anti-vibration strut 25 Boss (locking means)

Claims (1)

[Claims] 1. A fixing device for a compact fluorescent lamp including a compact fluorescent lamp housed inside a casing, and a socket for connecting the compact fluorescent lamp to a ceiling portion of the casing. An anti-vibration strut made of an elastic material is interposed between the bottom parts, and the upper part of the anti-vibration strut is fitted to the lower end part of the fluorescent tube, and the lower part thereof is engaged with the bottom part of the casing through a locking means. Fixing device for compact fluorescent lamps that is stopped.