JPS6276207A - Lamp holder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lamp holder used for a curved lamp such as a U-shaped fluorescent lamp.

[Conventional technology]

The U-shaped fluorescent lamp has a pair of straight pipe sections parallel to each other,
It has a bent part connecting these straight pipe parts, and a base is provided on one end side of the straight pipe part.

In order to support the intermediate portion of such a lamp, conventionally, a support member 5 is inserted into the gap 4 between the straight tube portions 2.3 of the lamp 1, as shown in FIG. 3, for example. Alternatively, as shown in FIG.
In some cases, the lamp l is supported by passing it through the lamp. Note that the straight pipe portions 2 and 3 are connected via a bent portion 7.

[Problem that the invention seeks to solve]

However, since the support member 5 shown in FIG. 3 needs to pass its tip portion through the gap 4, it is limited by the shape of the gap 4 and the support member 5Q. Moreover, since the support member 5 only supports the downward load of the lamp 1, the support is unstable, and it is not suitable for a lamp that is lit vertically.

On the other hand, since the holder 6 shown in FIG. 4 has a shape that holds the lamp 1, a part of the light in the irradiation direction is blocked, resulting in a decrease in efficiency, and if a part of the holder 6 is visible, the appearance is Deteriorate.

[Means for solving problems]

The present invention is applied to a lamp holder for supporting a curved tube-shaped lamp having a pair of straight tube sections as described above.

The lamp holder of the present invention includes a rod-shaped main body thick enough to be inserted into a gap in a straight tube part of a lamp, and a rod-shaped main body provided at the tip side of the main body, and in a free state, the width becomes wider than the width of the gap, but when an external force is applied, A support part that is elastically deformed to a width that allows insertion through the gap, and a support part that is provided in the middle part of the main body in a direction crossing the main body and comes into elastic contact with the pair of straight pipe parts, respectively. A presser piece is provided to clamp the straight pipe portion.

[Effect]

In the lamp holder configured as described above, by inserting the support part between the straight pipe parts, the support part is elastically deformed to a width that allows insertion through the gap, and returns to its original shape after passing through the gap.

When this state is reached, each straight portion of the lamp is elastically pinched between the supporting portion and the holding piece, and is securely held.

〔Example〕

In one embodiment shown in FIGS. 1 and 2, the lamp holder 10 includes a rod-shaped body 1. The thickness of this main body 11 is smaller than the gap 4 between the straight pipe parts 2 and 3 of the lamp 1.

The main body 11 of this embodiment is made by overlapping two strip-shaped metal plates having spring properties. An attachment portion 13 is formed at the upper end of the main body 11 in the drawing by bending the upper end of the main body 11. The mounting portion 13 is a portion that is fixed to the chassis of the lighting fixture body, and is provided with a mounting hole 14, for example, although it is not limited to the illustrated example.

A support portion 15 is provided on the tip (lower end in the drawing) side of the main body 11. This support portion 15 is made by bending the tips of two metal plates constituting the main body 11 toward each other in a “<” shape.

The maximum width W of the support portion 15 is J- in the free state.

2 is wider than the width of the gap 4. Katsuko support part 1
5, when an external force is applied in the direction of compressing its width W,
The dimensions of each part are set so that it can be elastically deformed to a width that allows insertion through the gap 4.

Further, a spring plate-shaped presser piece 17 is provided at a longitudinally intermediate portion of the main body 11 in a direction intersecting the main body 11. This holding piece 17 is also made of a band-shaped metal plate having spring properties. A through hole 18 is formed in the center of this holding piece 17, and the main body 11 is inserted into this through hole 18. Main body 11
A convex part 20 is formed in the middle part of the convex part 20.
A presser piece 17 is positioned on the side of the support portion 15'. Therefore, upward movement of the presser piece 17 is restricted by the convex portion 20.

The presser piece 17 has a pair of curved portions 17a having a shape that roughly corresponds to the outer shape of the straight pipe portions 2 and 3 of the lamp.

17b. The distance from the curved parts 17a, 17b to the support part 15 is such that the straight pipe parts 2, 3 can be sandwiched elastically.

Incidentally, the inside of the lamp 1 is filled with mercury and an appropriate rare gas, as in a well-known fluorescent lamp, and is also provided with electrodes (not shown).

Further, a base 25 is provided at one end of the lamp 1, and four cap pins 26 protrude from the base 25 to be electrically connected to the electrodes. This base pin 26 is G IOQ
It is a standard product known as The structure of such a U-shaped fluorescent lamp may be similar to conventional ones. Note that this cap pin 2 is provided on the chassis side facing the cap pin 26.
A known lampholder is provided to which 6 is connected.

To attach the lamp to the lamp holder 10 configured as described above, the lamp gap 4 is made to face the support part 15 of the lamp holder 10, and the lamp 1 is pushed in from the bottom side in the figure. By doing so, the support portion 15 passes through the gap 4 while shrinking in its thickness direction, resulting in the state shown in FIG. 2.

When the support portion 15 passes through the gap 4, it returns to its original shape. At this time, between the presser piece 17 and the support part 15, the straight pipe part 2
, 3 are sandwiched between them, and the elastic force of the holding piece 17 holds the lamp 1 firmly.

In this way, the lamp 1 can be attached to the lamp holder 10 in a single operation of simply pushing the lamp 1 into the lamp holder 10. Moreover, along with this action,
Since the cap bottle 26 can also be connected to the lamp socket on the chassis side, the installation work is extremely simple. Note that the base 25 side is supported on the chassis side by appropriate means (not shown).

According to the lamp holder 10 configured as described above, the lamp 1 can be reliably held between the support portion 15 and the presser piece 17 regardless of whether the lamp 1 is lit in a horizontal or vertical position. In addition, since the holding piece 17 can be positioned at the rear in the irradiation direction, it is not necessary to substantially block the emitted light, thereby preventing a decrease in efficiency.

Note that the holding piece 17 is not limited to a plate shape, and may be formed of, for example, a spring wire. Furthermore, the lamp holder of the present invention can be similarly used for fluorescent lamps other than U-shaped, as long as they are curved tube-shaped lamps having a pair of parallel straight tube sections. Furthermore, two or more lamp holders 10 may be used to support the lamp.

〔Effect of the invention〕

According to the lamp holder of the present invention, the lamp can be held securely, the light in the irradiation direction is not blocked, and the lamp can be attached with a simple operation.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a lamp holder showing an embodiment of the present invention, FIG. 2 is a front view of the lamp holder shown in FIG. 1, and FIGS. 3 and 4 each show a conventional lamp support member. FIG. 1... Lamp, 2.3... Straight pipe section, 4... Gap,
7...Bent part, 10...Lamp holder, 11...
Main body, 15... Support part, 17... Push, 5. ．． Piece. Applicant's representative Patent attorney Takehiko Suzue Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] A lamp holder that supports a curved tube-shaped lamp having a pair of straight tube sections that are parallel to each other and spaced apart from each other, and a bent section that connects the straight tube sections, the lamp holder being inserted into the gap between the pair of straight tube sections. A rod-shaped main body with a possible thickness, and a rod-shaped main body provided at the tip side of the main body, which is wider than the width of the gap in the free state,
a support part that is elastically deformed to a width that allows insertion through the gap by applying an external force; and a support part that is provided at an intermediate part of the main body in a direction crossing the main body and comes into elastic contact with the pair of straight pipe parts, respectively. A lamp holder comprising: a holding piece that clamps the straight pipe part between the lamp holder and the straight pipe part.