JPS63236206A - Lighting fixture - 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] [Object of the Invention] (Industrial Application Field) The present invention is directed to a U-shaped lamp, a W-shaped lamp, etc.
A single-cap lamp with a cap attached to only one end of the bulb,
The present invention relates to a lighting fixture supported by a fixture body via a holder.

(Prior Art) U-shaped fluorescent lamps, W-shaped fluorescent lamps, etc. have a curved bulb, and both ends of the bulb are juxtaposed close to each other, and a single cap is attached thereto. ing. Therefore, this type of fluorescent lamp has a single-cap type.

When supporting such a single-cap type fluorescent lamp in the fixture body, it is considered that the base part and the tip of the bulb, which is separated from the base part, are supported via a holder fixed to the fixture body. It will be done. With such a support structure, 2
Since it is a point support, the support posture is stable.

However, in this case, one holder supports the tip of the bulb, so there is a risk of damage to the glass bulb, and if the holder is made of metal, the light output may decrease due to the light blocking effect, or the holder may cast a shadow. There are some problems such as

On the other hand, as disclosed in, for example, Japanese Utility Model Application Publication No. 59-188615, it has been proposed to support only the cap portion with a holder.

(The problem to be solved by the invention) However, as shown in the above publication, if only the base part is supported by the holder, the lamp will be supported on a cantilever,
There is a risk that the tip of the bulb will sag and the entire lamp will tilt.

In particular, there is a problem in that the lamp easily tilts when vibrations or shocks are transmitted to the main body of the device.

The present invention aims to provide a lighting fixture equipped with a holder that prevents a single-base lamp from tilting even when the lamp is supported on a cantilever by supporting only the base.

[Structure of the Invention] (Means for Solving the Problems) In the present invention, the holder is made of an elastic plate material, and the holder has a portion that is closer to the valve than a pair of protrusions formed on the side surface of the cap. The present invention is characterized by comprising a pair of elastic clamping pieces, and a presser part that is connected to the elastic clamping pieces and supports the upper surface of a portion of the mouthpiece farthest from the valve.

(Function) According to the present invention, the pair of elastic clamping pieces formed on the holder clamp the part of the base that is closer to the valve than the pair of convex parts formed on the side surface of the base, and the holding part clamps the part of the base that is farther from the valve. Since the holder supports the upper surface of the lamp, the holder supports the lamp cap over a long range along the axial direction, and can prevent the lamp from tilting without directly supporting the bulb.

(Example) The present invention will be described below based on an example shown in the drawings.

In FIG. 3, reference numeral 1 denotes a main body of a lighting fixture, and a holder 2 is fixed to this main body 1 by screws or the like (not shown).

The holder 2 supports a single-cap fluorescent lamp 3. First, the single-cap fluorescent lamp 3 will be explained.

Reference numeral 4 denotes a U-shaped arc tube bulb, which has a phosphor coating formed on its inner nine surfaces, and has electrodes (not shown) sealed at both ends, and a predetermined amount of mercury inside. and a rare gas. Both ends of the U-shaped valve 4 are arranged in parallel with each other, and a common cap 5 is attached to both ends.

The cap 5 includes a flat cylindrical cap body 6 made of an insulator such as synthetic resin, a cap bottle 7 protruding from an end surface of the cap body 6, and a cap bottle 7 that closes the other end surface of the cap body 6. Both ends of the U-shaped valve 4 are inserted into the cap body 6 through the closure flange 8, and the electrical connection between the electrode and the cap pins 7 is established within the cap body 6. A connection has been made.

A pair of convex portions 9.9 are formed on the side surface of the cap body 6, spaced apart from the closing flange 8 in the axial direction, and these convex portions 9.
, 9 are used for alignment with a socket (not shown).

The holder 2 is made of an elastic metal plate or the like, and, as shown in FIG. 1, is provided with a substantially U-shaped fixing portion IO. A hole 11 is provided in the ceiling surface of this fixing part 1O through which the screw for attaching this holder 2 to the instrument body 1 is inserted.
is formed. A pair of elastic clamping pieces 12, 12 are extended from both side walls of the fixing part 10 at one end thereof. These pair of elastic clamping pieces 12.12 are connected to the base 5.
The closing flange 8 and the protrusions 9, 9 are sandwiched between them. Furthermore, presser portions 13.13 are formed on both side walls of the fixing portion 1o and extend in the axial direction continuously from the roots of the pair of elastic clamping pieces 12.12. These pressing portions 13.13 are adapted to press the top surface of the cap 5 while avoiding the convex portion 9.9 on the cap 5.

The operation of the embodiment with such a configuration will be explained.

A single-capped fluorescent lamp 3 is attached to a holder 2 attached to a device body 1 in a substantially horizontal position.

That is, as shown in FIG. 2, the single-cap type fluorescent lamp 3 is placed in a substantially horizontal position, and the cap 5 is fitted into the holder 2 from below. In this case, the elastic clamping piece 12. of the holder 2 is held between the closing flange 8 of the cap 5 and the convex portion 9.9.
12 and fit together so that they are sandwiched. Then, the elastic clamping piece 12.12 of the holder 2 clamps between the closing flange 8 and the convex parts 9, 9 on the base 5, and the holding part 13.13 of the holder 2 holds the convex part 9.9 on the base 5. It comes into contact with the upper surface of the cap 5 that was avoided.

When the single-cap type fluorescent lamp 3 is attached to the holder 2 in this way, the single-cap type fluorescent lamp 3 is supported only by the base 5 at the end, which is what is called cantilever support. There is no fear that the bulb 4 will be damaged, and there is no member to block the light emitted from the bulb 4 as a light emitting section, so it is possible to prevent the occurrence of shadows.

Furthermore, the cap 5 is held between the closing flange 8 and the convex portion 9.9 by the elastic clamping piece 12 of the holder 2, and is avoided from the convex portion 9.9 by the holding portion 13.13 of the holder 2. Since the top part is pressed down, the cap 5
is supported by the holder 2 over the shaded area in FIG. That is, the base 5 is supported by the holder 2 over a long range along the axial direction. Therefore, even if the lamp 3 tries to tilt as shown by the imaginary line in FIG. ．． 13 presses down the upper surface portion of the end portion of the base 5, thereby preventing the lamp 3 from tilting.

Therefore, even if vibrations or shocks are transmitted to the instrument body 1, the single-capped fluorescent lamp 3 can be well supported in a substantially horizontal position.

The holder shown in the above-mentioned Japanese Utility Model Application Publication No. 59-188615 does not have the holding part 13.13, so it is less reliable in preventing the single-capped fluorescent lamp 3 from tilting. .

Note that the present invention is not limited to the above embodiments.

That is, the single-capped fluorescent lamp 3 has a U-shaped bulb 4.
The lamp is not limited to a lamp having a cap at one end thereof, and may be, for example, W-shaped, and is not limited to a fluorescent lamp.In short, any lamp having a base at one end can be used.

Further, the holder 2 is not limited to being made of metal, and may be made of synthetic resin or the like.

[Effects of the Invention] As explained above, according to the present invention, the pair of elastic clamping pieces formed on the holder clamp the portion closer to the valve than the pair of protrusions formed on the side surfaces of the cap, and the holding portion Since the holder holds down the upper surface of the part far from the bulb, the holder supports the cap over a long range along the axial direction, and therefore prevents the lamp from tilting even if it is supported on a cantilever that only supports the cap. be able to.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an exploded perspective view of a holder and a lamp, FIG. 2 is a side view thereof, and FIG. 3 is a side view of the lamp in a supported state. L... Apparatus body, 2... Holder, 3... Single cap fluorescent lamp, 4... U-shaped bulb, 5... Base, 6
...Body of the cap, 8...Closing flange, 9...Convex portion, 10...Fixing portion, 12, 12...Elastic clamping piece, 1
3.13... Presser section.

Claims (1)

[Claims] A device body, a holder attached to the device body, and a cap at one end of the valve, the cap having a pair of protrusions on the side surface, and the cap being supported by the holder to be attached to the device body. In the lighting equipment, the holder is made of an elastic plate, and includes a pair of elastic clamping pieces that clamp a portion of the base closer to the bulb than the pair of protrusions, and A lighting device characterized by comprising a presser part that is arranged in series and supports an upper surface of a portion of the cap that is far from the bulb.