JP3941077B2 - Lampholder support structure for desk lamp - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a desk lamp using a compact fluorescent lamp. In particular, the present invention relates to the lamp socket support structure.
[0002]
[Prior art]
Desk lamps that place compact fluorescent lamps and their lampholders in the shade are known. It is also known to give a rotational moment to the lamp socket in such a way that the lamp insertion portion is directed obliquely downward from the normal state. In this case, the lamp insertion portion of the lamp socket faces obliquely downward when the compact fluorescent lamp is removed. For this reason, it becomes easy to mount the compact fluorescent lamp.
[0003]
[Problems to be solved by the invention]
The structure for imparting the rotational moment to the lamp socket or the socket holder for holding the lamp socket is complicated, and a torsion coil spring and associated accessories are used. The assembly is cumbersome and the cost is high.
An object of the present invention is to provide an inexpensive means for applying a rotational moment.
[0004]
[Means for Solving the Problems]
In the present invention, the elastic piece extending from the socket holder is formed integrally with the socket holder. The free end side of the elastic piece is brought into contact with the shade. As a result, a rotational moment is applied that causes the lamp insertion portion to be directed obliquely downward from the normal state.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIG. The lamp socket 2 is disposed in the shade 3. The compact fluorescent lamp 1 is detachably inserted into the lamp insertion part A of the lamp socket 2. A socket holder 4 that holds the lamp socket 2 and is rotatably attached to the shade 3 is provided. An elastic piece 5 extending from the socket holder 4 is formed integrally with the socket holder 4. The free end side of the elastic piece 5 is brought into contact with the shade 3. The elastic piece 5 gives a rotational moment that causes the lamp insertion portion A to be directed obliquely downward from the normal state.
The illustration of the stand column that supports the shade 3 and the stand base that holds the lower end of the stand column is omitted. The compact fluorescent lamp 1 is of a single-sided shape with a base 1a only on one side. Reference numeral 6 denotes a rotating shaft provided in the socket holder 4 and is rotatably held by a bearing formed on the end side of the shade 3. The figure shows a state in which the compact fluorescent lamp 1 is removed, and the lamp insertion portion A faces obliquely downward from the normal state due to the influence of the elastic piece 5. The operation | work which mounts the nozzle | cap | die 1a to the lamp | ramp insertion part A of such a posture is easy. After the mounting, the free end of the compact fluorescent lamp 1 is detachably engaged with the lamp holder 7 in the shade 3. The compact fluorescent lamp 1 after the engagement is horizontal. This is a normal state, and the socket holder 4 rotates against the elasticity of the elastic piece 5 under the circumstances, and the lamp insertion portion A faces in the horizontal direction.
[0006]
The embodiment of FIG. 2 will be described. The elastic piece 5 in FIG. 1 extends from a position near the upper end of the socket holder 4. The elastic piece 5 ′ in FIG. 2 extends from a position near the lower end of the socket holder 4. The role of the elastic piece 5 ′ in FIG. 2 is the same as that of the elastic piece 5 in FIG. 1 and is to give an appropriate rotational moment to the socket holder 4.
The embodiment of FIG. 3 will be described. FIG. 3 is a combination of the elastic piece 5 of FIG. 1 and the elastic piece 5 ′ of FIG. This is also effective, and a rotational moment can be given to the socket holder 4.
[0007]
【The invention's effect】
In the present invention, an integral elastic piece extending from the socket holder is formed, thereby giving a rotational moment that causes the lamp insertion portion to be directed obliquely downward from the normal state. According to this, the mechanism for applying the rotational moment is simple, which is advantageous in terms of the number of parts or the number of assembly steps, and an inexpensive lamp socket support structure can be obtained.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a lamp socket support structure according to the present invention.
FIG. 2 is a cross-sectional view showing another lamp socket support structure according to the present invention.
FIG. 3 is a sectional view showing another lamp socket support structure according to the present invention.
1: Compact fluorescent lamp, 2: lamp socket, 3: shade
4: Socket holder, 5/5 ': Bullet piece, 6: Rotating shaft, 7: Lamp holder,
A: Lamp insertion part

Claims (1)

In a table lamp in which a lamp socket is disposed in a shade and a compact fluorescent lamp is detachably inserted into a lamp insertion portion of the lamp socket, the lamp socket is held and is rotatably mounted on the shade. A socket holder is provided, and an elastic piece extending from the socket holder is formed integrally with the socket holder, a free end side of the elastic piece is brought into contact with the shade, and the lamp insertion portion is moved from the normal state by the elastic piece. A lamp socket support structure for a desk lamp, characterized in that a rotational moment is applied to be inclined downward.

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