JPS6015207Y2 - socket with light pipe - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a socket with a light pipe.

Generally, the scale plates of instruments installed in automobiles are illuminated by small light bulbs, but items that cannot be directly illuminated by small light bulbs, such as headlights, wiper operating knobs, engine key sockets, and ashtrays, are illuminated by small light bulbs. A light conduit (optical fiber) is used to guide light from a small light bulb, thereby providing indirect illumination.

In this case, as conventionally shown in FIG. This is a composition that looks like this.

According to this, there is a drawback that the small light bulb d becomes a dedicated light source for the light pipe a and cannot be used for other lighting, and also has the drawback that the cap b easily comes off from the socket c, and the light pipe a easily comes off from the cap b. The tip of the light pipe a becomes unstable and shifts in position, resulting in disadvantages such as insufficient light rays entering the light pipe a or uneven light.

This invention was made in order to eliminate the drawbacks of the above-mentioned conventional example, and it allows the light pipe to be integrally and stably attached via a holder to a socket into which a small light bulb is inserted, and also allows the small light bulb to be used for other lighting purposes. The present invention provides a socket with a light pipe that can be used.

Therefore, the present invention provides a hole in the side wall of the socket, inserts a light pipe through this hole so that its tip face faces the light bulb inserted in the socket, and a holder with this light pipe attached to the bottom of the socket. The gist is that it is held and fixed by.

Hereinafter, this invention will be explained in detail with reference to the illustrated embodiment. Reference numeral 1 denotes a socket body made of synthetic resin, and a hole 11 is formed in the side wall of the socket, which faces diagonally upward from the outside to the inside. A series of cylindrical projections 12 are provided.

Reference numeral 2 denotes a holder, in which wing-like pieces 22 and 23 that gradually become narrower are arranged diagonally upward on both side edges of the substrate 21, and bent pieces 24 and 25 are formed at the tips of these pieces, respectively. Cut and raised claw pieces 21a and 21b are provided oppositely on the base plate 21, and their tips are formed into a semicircular arc shape in alignment with the projection 12, and a hole is provided in the center of the wing-like pieces 22 and 23 to form the guide tube 22. a, 23a are arranged in series, and further a bent piece 24.
25 is formed with cut and raised locking pieces 24a and 25a, respectively.

This holder 2 is located at the center of the substrate 21, that is, by cutting and raising the claw piece 21a.
, 21b is attached to the socket body 1 by press-fitting the protrusion 12 of the socket body 1 into the hole formed at the tip of the socket body 1. , 21b.

At this time, the cut-and-raised claw pieces 21a and 21b are pushed down slightly, and the semicircular arc-shaped part at the tip bites into the outer circumferential surface of the protrusion 12 from both sides, whereby the holder 2 is securely fixed, and the guide tube 22a of the holder 2 is fixed. .

The tips of the sockets 23a are fitted into the holes 11 and 11 of the socket body 1, respectively.

Reference numeral 3 denotes a light conduit, which is inserted into the guide tube 2a from the lower surface side of the wing-shaped piece 22 of the holder 2, and its tip end is inserted into the socket body 1, and is a small light bulb 4 (in the illustrated example, it is a wedge base lamp). A collar piece 3a attached to the light pipe 3 and facing the
It is held and fixed by locking it with the cut and raised locking piece 24a.

In this way, the two light pipes 3 are attached to the socket body 1 via the holder 2.

Note that the position and angle of the hole 11 in the socket body 1 are set in advance so that the light beam of the light bulb 4 is sufficiently incident on these light pipes 3.

This invention is constructed as described above, and when the light pipe 3 is installed, the light bulb 4 is not covered with a cap or the like as in the conventional example, so the light bulb 4 is used not only as a light source for the light pipe 3 but also as a light source for other light pipes. It can also be used as a light source for illumination.

In addition, two light pipes 3 are provided for one light source (light bulb 4).
It is extremely efficient and economical because the light pipe 3 can be installed integrally and stably on the socket body 1 via the holder 2.
Since the distal end portions of the holder 2 are securely held by the guide tubes 22a and 23a of the holder 2, stable illumination can be obtained without positional deviation and uneven light.

Furthermore, since the light bulb 4 is not covered with a cap or the like,
Another advantage is that the disconnection can be easily detected.

FIG. 5 shows a socket main body 1' with one light pipe 3' attached, and one wing-shaped piece 23 of the holder 2'.
' is made to stand up and come into contact with the lower part of the side wall of the socket body 1', and the hole where the light pipe 3' is not attached is closed to prevent light leakage.

In this case, it goes without saying that the socket body 1' may be provided with only one hole 11' in advance.

As is clear from the above explanation, this invention has a light pipe attached to the bottom of the socket of the wedge base lamp.
The lamp is not covered with a cap or the like as in the past, and can be used not only as a light source for a light pipe but also for other lighting purposes.

Further, the light pipe is securely fixed via the holder, and in particular, the tip thereof is held by the guide cylinder of the holder, so that displacement of the tip is prevented and constant illumination can be obtained at all times.

Furthermore, it is very convenient to be able to emit two (or more) light conduits from one light bulb, providing illumination in at least three locations at the same time.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a conventional example, Fig. 2 is a front view showing an embodiment of this invention, Fig. 3 is a bottom view, Fig. 4 is a half sectional view seen from the side, and Fig. 5 is a diagram showing the light pipe. It is a half sectional view seen from the side when one is attached. 1...Socket body, 2...Holder,
3. Curved light pipe, 4. Light bulb.

Claims (1)

[Scope of utility model registration request] A synthetic resin socket body with a diagonally upward hole formed in the side wall from the outside to the inside, and a series of protrusions in the center of the outer surface of the bottom wall, and a diagonally upwardly directed wing-shaped piece on the side edge of the board. A downwardly bent piece is connected to the tip of the wing-like piece, and a cut-and-raised claw piece is provided in the center of the base plate to engage with a protrusion formed on the outer surface of the bottom wall of the socket body. A guide cylinder is formed on the upper surface of the peripheral edge of the hole formed in the central part of the wing-like piece, and is press-fitted into the hole provided on the side wall of the socket body. a metal holder having a locking piece cut and raised on the inside thereof, and having an outer diameter that is approximately the same as the inner diameter of the guide cylinder of the holder, and a flange piece fixed to the outer peripheral surface. A guide tube formed on the wing-shaped piece of the holder is press-fitted into a hole provided in the side wall of the socket body, and
The holder is attached to the socket body by locking the protrusion formed on the outer surface of the bottom wall of the socket body with the cut-and-raised claw piece formed on the substrate of the holder, and this socket body! The front part of the light pipe is inserted from below into the guide cylinder of the holder attached to the holder, and the front part of the light pipe is attached to the outer peripheral surface of the light pipe between the cut and raised locking pieces provided on the surface of the wing-shaped piece and the bent piece of this holder. 1. A socket with an optical conduit, characterized in that the optical conduit is attached to the socket main body via a holder by holding a flange piece.