JP4130879B2 - lighting equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a luminaire that mounts the base part of a fluorescent lamp whose base part has the same standard as an incandescent lamp on a socket and lights it.
[0002]
[Prior art]
This type of lighting fixture uses a fluorescent lamp that is much more power-saving than an incandescent lamp, thereby greatly reducing lighting power consumption in stores. However, if an incandescent lamp is installed incorrectly, the resin part of the appliance may be thermally deformed or burnt due to large heat generation. In order to avoid this, screw the metal cylindrical body inside the reflector provided opposite to the front of the socket with a screw that is larger than the maximum outer diameter of the fluorescent lamp and smaller than the maximum outer diameter of the incandescent lamp, An incandescent lamp could not be installed in the socket.
[0003]
[Problems to be solved by the invention]
However, it should be noted that such a cylindrical body has a problem to be solved that the cost is high and the screwing work is troublesome. In view of such a problem to be solved, the present invention makes it possible to easily avoid erroneous mounting of an incandescent lamp at low cost.
[0004]
[Means for Solving the Problems]
As indicated in the claims.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described. However, this is merely an exemplary embodiment adopted based on the present invention, and the present invention should not be limitedly interpreted based on matters specific to the embodiment. Rather, the technical scope of the present invention should be determined based on the matters shown in the claims and matters substantially equivalent to the matters.
[0006]
The illustrated embodiment is a lighting fixture in which the base 1 of the fluorescent lamp 4 having the same base 1 as that of the incandescent lamp 2 is attached to a socket 5 to be lit. Then, a substantially U-shaped metal spring wire 7 is bridged and mounted in a direction perpendicular to the mounting direction of the fluorescent lamp 4 in the inside of the resin reflecting tube 6 provided facing the front of the socket 5. The inner width is larger than the maximum outer diameter a of the fluorescent lamp 4 and smaller than the maximum outer diameter b of the incandescent lamp 2.
[0007]
Both ends of the metal spring wire 7 are inserted into the small holes 9, 9 of the reflection tube 6, respectively, and the middle point of the metal spring wire 7 is inserted into the long hole 10 of the reflection tube 6. Is prevented from outward displacement by a small projection 11 formed on the outer surface of the reflecting tube 6 outside the elongated hole 10, and both shoulders near the midpoint of the metal spring wire 7 are reflected outside the elongated hole 10. Inward displacement is prevented by the small protrusions 12 and 12 formed on the outer surface of the cylinder 6, and it is easily attached without using screws.
[0008]
In other words, the lighting fixture is provided with a socket 5 facing downward on the lower surface of the main body 13 attached to the ceiling or the like by appropriate means, and a cylindrical shade 14 is appropriately provided on the outer periphery of the main body 13. The reflecting cylinder 6 is fitted into the lower opening of the shade 14 and fixed to the shade 14.
[0009]
The metal spring wire 7 is first attached at both ends thereof from the inside of the reflecting tube 6 through the small holes 9 as shown by arrows in FIG. 3, and then at the midpoint of the metal spring wire 7 and its vicinity as shown by arrows in FIG. Is passed through the long hole 10. Then, as shown in FIG. 5, the shoulders on both sides of the midpoint of the metal spring wire 7 overtake the small projections 12, 12 that are formed lower, and the midpoint of the metal spring wire 7 climbs over the small projection 11 that is formed higher. The metal spring wire 7 is attached to the reflecting tube 6 in a state where it is not possible.
[0010]
According to the present embodiment, by mounting the substantially U-shaped metal spring wire 7 in the reflecting tube 6 by cross-linking, it becomes impossible to mount the incandescent lamp 2 on the socket 5 as shown in FIG. Thus, erroneous mounting of the incandescent lamp 2 can be easily avoided at low cost. Further, the metal spring wire 7 can be easily attached without a screw.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a fluorescent lamp mounted. FIG. 2 is a cross-sectional view of an incandescent lamp. FIG. 3 is a perspective view of a first process of mounting a metal spring wire. [Fig.5] Top view when the installation is completed 【Explanation of symbols】
DESCRIPTION OF SYMBOLS 1 Base part 2 Incandescent lamp 4 Fluorescent lamp 5 Socket 6 Reflecting cylinder 7 Metal spring wire 9 Small hole 10 Long hole 11 Small protrusion 12 Small protrusion

Claims (2)

A lighting fixture for lighting a fluorescent lamp whose base is the same standard as an incandescent lamp by mounting the base on a socket, and a substantially U-shaped metal spring inside a reflecting tube provided in front of the socket A lighting fixture in which a wire is bridge-mounted in a direction perpendicular to the mounting direction of the fluorescent lamp, and the inner width of the metal spring wire is larger than the maximum outer diameter of the fluorescent lamp and smaller than the maximum outer diameter of the incandescent lamp. 2. The metal spring wire according to claim 1, wherein both ends of the metal spring wire are inserted into the small holes of the reflecting cylinder, the middle point of the metal spring wire is inserted into the elongated hole of the reflecting cylinder, and the middle point of the metal spring wire is the long hole. Outward displacement is prevented by small projections formed on the outer surface of the reflecting cylinder on the outer side of the reflector, and both side shoulders near the midpoint of the metal spring wire are formed by small projections formed on the outer surface of the reflecting cylinder on the outer side of the long hole. A luminaire with inward displacement prevented.

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