JPH06231843A - Lighting device - Google Patents

Abstract

PURPOSE:To ensure sufficient contact between a lamp terminal and a lead wire while simplifying fitting of a lamp to an electric wire. CONSTITUTION:In a condition that a coating-removed part 2d of an electric wire 2 of exposing lead wires 2a, 2b by removing a coating material 2c is positioned between contact part holding walls 3e, 3f provided in a base member 3, the electric wire 2 is interposed by the base member 3 and a holder member 4, and also a wedge part 1b of a bulb 1a of a lamp 1 is inserted between the lead wires 2a, 2b exposed in the coating-removed part 2d. Terminals 1c, 1d of the lamp 1 and the lead wires 2a, 2b, in a condition being brought into contact with each other, are interposed between the contact part holding walls 3e, 3f and the wedge part 1b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device in which lamps are attached to electric wires at appropriate intervals.

[0002]

2. Description of the Related Art Conventionally, in this type of lighting device,
(A) Solder the terminal of the lamp or the terminal of the socket in which the lamp is mounted to the conductor of the electric wire, or (b) pierce the terminal of the lamp or the socket into the covering material of the electric wire and contact the terminal with the conductor of the electric wire. Alternatively, (c) the lamp is electrically connected to the lead wire by elastically contacting the terminal of the socket with the exposed lead wire by partially removing the covering material of the wire due to the elasticity of the terminal. .

[0003]

In the conventional method (a), it takes a lot of time to manufacture, but in the methods (b) and (c), there is a possibility that the method is used outdoors or shock or vibration is applied. If the operating environment is severe, such as when the product is installed in a certain place, or if the operating current is large, it may not be possible to ensure sufficient contact between the lamp or socket terminal and the conductor, and There is also a problem that it cannot be performed depending on conditions such as the cross-sectional shape and the thickness of the covering material.

In addition, in the conventional illuminating device, in order to obtain sufficient water resistance performance, the number of parts must be large in any of the methods (a), (b) and (c). There was also the problem that it would increase and the processing would be troublesome.

The present invention has been made in view of the above circumstances, and an object of the present invention is to easily attach a lamp to an electric wire and to use it in a severe working environment or a large working current. It is an object of the present invention to provide a lighting device capable of ensuring sufficient contact between a terminal of a lamp and a conductive wire.

Another object of the present invention is to provide a lighting device which can easily obtain a very excellent water resistance performance without increasing the number of parts.

[0007]

An illumination device according to the present invention comprises a lamp having a pair of terminals and a wedge portion provided on a bulb, two lead wires, and a covering material for covering these lead wires. An electric wire provided, a coating removing portion provided on the electric wire, the coating material being removed to expose the conductive wire, and the coating material remaining before and after the coating removing portion of the electric wire, And a holder member fixed to the base member, the base member having a pair of contact portion holding walls, and the lamp insertion port through which the lamp is inserted. The electric wire is sandwiched between the base member and the holder member in a state in which the coating removing portion is located between the contact portion sandwiching walls, and the lamp is inserted into the lamp insertion opening. Removal of the wedge portion from the coating While being inserted between the exposed conductors, the portion opposite to the wedge portion is projected out of the holder member and the base member, and one of the terminal of the lamp and the conductor is in contact with each other. Is sandwiched between one of the contact part sandwiching walls and the wedge part, and the terminal of the lamp and the other of the lead wires are in contact with each other between the other sandwiching wall and the wedge part. It has been sandwiched.

[0008]

According to the present invention, the electric wire is sandwiched between the base member and the holder member such that the sheath removing portion is located between the sandwiching walls, and the wedge portion of the lamp is exposed in the sheath removing portion. Inserted in between, the lamp terminal and one of the conducting wires are sandwiched between one of the contact part holding walls and the wedge part while being in contact with each other, and the lamp terminal and the other of the conducting wires are in contact with each other Just by sandwiching it between the other part of the part holding wall and the wedge part,
The lamp can be attached to the electric wire by surely bringing the lead wire and the terminal of the lamp into contact with each other without soldering.

Further, if the space surrounded by the lamp, the base member and the holder member is filled with a filler having water resistance and electrical insulation, the conductor exposed at the terminals and the coating removal portion of the lamp is completely removed. It is possible to obtain extremely excellent water resistance performance.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the embodiments shown in the drawings. 1 to 22 show a first embodiment of a lighting device according to the present invention, of which FIGS. 1 to 3 show a lamp 1 used in this embodiment. This lamp 1
Is an incandescent lamp generally called a wedge bulb, and a substantially plate-shaped wedge portion 1b is integrally provided at one end of a bulb 1a made of glass. Each of the pair of terminals 1c and 1d of the lamp 1 is made of a wire rod and is drawn out from the tip of the wedge portion 1b. In addition, one end of each terminal 1c, 1d penetrates the wedge portion 1b and is connected to the filament 1e inside the tube 1a, while the other end is embedded in the wedge portion 1b. , 1d are respectively U-shaped. The terminal 1c is curved so as to be along one surface of the wedge portion 1b, while the terminal 1d is curved so as to be along the other surface of the wedge portion 1b.

FIG. 15 shows an electric wire 2 used in this embodiment. The electric wire 2 includes two conducting wires 2a and 2b which are formed by twisting fine wires (not shown) which are good conductors, respectively.
It is composed of a covering material 2c made of an electric insulator for covering these conducting wires 2a and 2b. Also, this wire 2
A coating removing portion 2d, from which the coating material 2c is removed and the conductors 2a and 2b are exposed, is provided at an appropriate interval, and the coating existing portion 2e in which the coating is not removed is provided before and after the coating removing portion 2d. Remains.

4 to 9 show a base member 3 used in the present embodiment. The base member 3 is made of an electrically insulating plastic, and has a basin portion 3a and a rim of the basin portion 3a. It has integrally with the flange part 3b provided in the. Two filling material injection holes 3c are formed in the bottom of the deep dish 3a. The flange portion 3b is provided with a conductor insertion groove 3d having a cross-sectional shape corresponding to a half of the cross-section of the electric wire 2 in a linear direction on both sides of the basin portion 3a. Further, the base member 3 includes
A pair of contact portion holding walls 3e and 3f standing upright from the flange portion 3b are erected on both sides of the deep dish portion 3a.
The contact portion holding walls 3e and 3f are arranged in a direction perpendicular to the direction in which the conductor wire insertion groove 3d extends, and each has a substantially arcuate cross section. Further, the flange portion 3b
A fitting protrusion 3g that stands up in the same direction as the contact portion holding walls 3e and 3f is provided upright.

10 to 14 show a holder member 4 used in this embodiment. The holder member 4 is made of an electrically insulating plastic and has a cylindrical portion 4a and a peripheral edge of one end portion of the cylindrical portion 4a. And a flange portion 4b provided on the inside of the cylindrical portion 4a, and the hollow portion inside the cylindrical portion 4a forms a lamp insertion port 4c. In addition, the flange portion 4
In b, a conductor wire insertion groove 4d having a cross-sectional shape corresponding to half of the cross section of the electric wire 2 is linearly provided on both sides of the tubular portion 4a. Further, the flange portion 4b
In the fitting hole 4 corresponding to the fitting protrusion 3g of the base member 3.
e is provided.

When assembling the illumination device of this embodiment,
As shown in FIG. 16, first, the sheath removal portion 2d of the electric wire 2 is inserted between the contact portion holding walls 3e and 3f of the base member 3, and the sheath existing portion 2e of the electric wire 2 is inserted into the conductor wire insertion groove 3d of the base member 3. Mating. Next, as shown in FIG. 17, the inner periphery of the tubular portion 4a is fitted to the outer periphery of the contact portion holding walls 3e and 3f, and the fitting protrusion 3g is fitted to the fitting hole 4e. As a result, the holder member 4 is temporarily fixed to the base member 3, and the coating existing portions 2e on both sides of the coating removal portion 2d of the electric wire 2 are sandwiched between the base member 3 and the flange portions 3b and 4b of the holder member 4. Be done. Next, after the base member 3 and the holder member 4 are ultrasonically welded and completely fixed to each other, the lamp 1 is inserted into the lamp insertion port 4c as shown in FIGS. 18 and 19, and the tip portion of the wedge portion 1b is inserted. The conductor 2 that exposes the wedge portion 1b in the sheath removing portion 2d until the blade contacts the bottom portion of the deep dish portion 3a of the base member 3.
Insert between a and 2b. As a result, the terminal 1d and the conductive wire 2a of the one lamp 1 are sandwiched between the one contact portion holding wall 3e and the wedge portion 1b in a state of being in contact with each other,
The other terminal 1c and the conductive wire 2b are sandwiched between the other contact part holding wall 3f and the wedge part 1b while being in contact with each other, and the portion of the lamp 1 opposite to the wedge part 1b is the holder member 4 and It is in a state of being projected to the outside of the base member 3. Note that, in FIG. 18, the cross sections of the conductors 2a and 2b at the cross-sectional positions passing through the centers of the lamp 1, the base member 3 and the holder member 4 are shown by solid line hatching, while the contact portion holding walls 3e and 3f and the wedge portion are shown. The cross section of the conductors 2a and 2b in the portion sandwiched between 1b and 1b is shown by the one-dot chain line hatching. Further, FIG. 19 is a bottom view of the contact state between the lamp 1 and the terminals 1c and 1d, and shows the cross-sections of the contact part holding walls 3e and 3f by hatching with alternate long and short dash lines.

Next, as shown in FIG. 20, the base member 3
By filling the space surrounded by the lamp 1, the base member 3, and the holder member 4 with the filler 5 having water resistance and electrical insulation, such as silicon rubber, from the filler injection hole 3c of The assembly of the embodiment is completed. 21 and 22 show a front view and a side view, respectively, of this embodiment in a completed assembly state (in the figure, the electric wire 2 is shown).
On the other hand, although only one lamp 1 is attached, a plurality of lamps 1 can be attached to the electric wire 2 at appropriate intervals in the same manner as described above).

In this illuminating device, the contact part holding wall 3 with the terminals 1c and 1d of the lamp 1 and the conductors 2a and 2b being in contact with each other by the above-mentioned simple operation.
It can be sandwiched between e and 3f and the wedge portion 1b, so that the lamp 1 and the terminals 1c and 1d can be surely brought into contact with each other. Therefore, sufficient contact can be secured between the terminals 1c and 1d of the lamp 1 and the conductors 2a and 2b even when the usage environment is severe or the usage current is large.

Further, as described above, if the space surrounded by the lamp 1, the base member 3 and the holder member 4 is filled with the filling material 5 having water resistance and electrical insulation, the terminals 1c and 1d of the lamp 1 are filled. Also, the exposed conductors 2a and 2b in the coating removal portion 2d are completely sealed, and extremely excellent water resistance performance can be obtained.

23 to 26 show a second embodiment of the present invention. In this embodiment, the same parts as those in the first embodiment are used, but as shown in FIGS. 23 and 24, first, the conductor 2a exposed in the sheath removing portion 2d of the electric wire 2 is removed from the wedge portion 1b. The conducting wire 2b is inserted between the one surface and the one terminal 1d, and the conducting wire 2b is inserted between the other surface of the wedge portion 1b and the other terminal 1c, respectively. Next, as shown in FIGS. 25 and 26, the wedge portion 1b and the coating removing portion 2d are kept in this state until the tip portion of the wedge portion 1b abuts on the bottom portion of the deep dish portion 3a of the base member 3. The member 3 is inserted between the contact part holding walls 3e and 3f, and the covering existing part 2e of the electric wire 2 is fitted in the conductor wire insertion groove 3d of the base member. As a result, the terminal 1d and the conductive wire 2a of the one lamp 1 are sandwiched between the one contact portion sandwiching wall 3e and the wedge portion 1b while being in contact with each other, and the other terminal 1
In the state where c and the conductor 2b are in contact with each other, they are sandwiched between the other contact part holding wall 3f and the wedge part 1b. Note that, also in FIG. 25, the conductor 2a at the cross-sectional position passing through the centers of the lamp 1, the base member 3, and the holder member 4,
The cross section of 2b is shown by solid line hatching, while the cross section of the conductors 2a, 2b in the portion sandwiched between the contact part holding walls 3e, 3f and the wedge part 1b is shown by dashed line hatching. There is. Further, FIG. 26 shows the lamp 1.
The contact state between the terminals 1c and 1d is viewed from the bottom surface side, and the cross sections of the contact portion holding walls 3e and 3f are shown by hatching with alternate long and short dash lines.

Next, as shown in FIG. 25, the contact portion holding wall 3 is formed so that the lamp 1 is inserted into the lamp insertion opening 4c.
The inner circumference of the cylindrical portion 4a of the holder member 4 is fitted to the outer circumferences of e and 3f, and the fitting projection 3g is fitted to the fitting hole 4e. As a result, the holder member 4 is temporarily fixed to the base member 3, and the coating existing portions 2e on both sides of the coating removal portion 2d of the electric wire 2 are provided on the base member 3 and the holder member 4.
The portion sandwiched between the flange portions 3b and 4 of the lamp 1 and opposite to the wedge portion 1b of the lamp 1 is projected to the outside of the holder member 4 and the base member 3. Then, after the base member 3 and the holder member 4 are ultrasonically welded and completely fixed to each other, they are surrounded by the lamp 1, the base member 3, and the holder member 4 from the filler injection hole 3c of the base member 3. Assembly is completed by filling the space with a filler 5 having water resistance and electrical insulation.

Also in this embodiment, the same effect as that of the first embodiment can be obtained.

[0021]

As described above, according to the lighting device of the present invention, (a) the lamp can be easily connected to the electric wire, and the terminal and the lead wire of the lamp can be used even in a severe usage environment or a large working current. (B) The number of parts can be increased by filling the space surrounded by the lamp, the base member, and the holder member with a water-resistant and electrically-insulating filler capable of ensuring sufficient contact with the In other words, the conductor exposed at the terminal of the lamp and the coating removal portion can be easily completely sealed, and an excellent effect such as an extremely excellent water resistance performance can be obtained.

[Brief description of drawings]

FIG. 1 is a front view showing a lamp in a first embodiment of a lighting device according to the present invention.

FIG. 2 is a side view showing the lamp.

FIG. 3 is a bottom view showing the lamp.

FIG. 4 is a front view of a base member in the first embodiment.

FIG. 5 is a plan view of the base member.

FIG. 6 is a side view of the base member.

FIG. 7 is a bottom view showing the base member.

8 is a cross-sectional view taken along the line VIII-VIII in FIG.

9 is a sectional view taken along line IX-IX in FIG.

FIG. 10 is a front view showing a holder member in the first embodiment.

FIG. 11 is a bottom view showing the holder member.

FIG. 12 is a side view showing the holder member.

13 is a sectional view taken along line XIII-XIII in FIG.

14 is a sectional view taken along line XIV-XIV in FIG.

FIG. 15 is a plan view showing an electric wire in the first embodiment.

FIG. 16 is a plan view showing a state in which electric wires are set on the base member in the first embodiment.

FIG. 17 is a cross-sectional view showing a state in which the holder member is fitted to the base member in the first embodiment.

FIG. 18 is a sectional view showing a state in which the lamp, the electric wire, the base member and the holder member are assembled in the first embodiment.

FIG. 19 is a bottom view showing a contact state between the lead wire of the electric wire and the terminal of the lamp in the first embodiment.

FIG. 20 is a cross-sectional view showing a completed state of the first embodiment.

FIG. 21 is a front view showing a completed state of the first embodiment.

FIG. 22 is a side view showing a completed state of the first embodiment.

FIG. 23 is a front view showing a set state of the terminals of the lamp with respect to the lead wire of the electric wire according to the second embodiment of the present invention.

FIG. 24 is a side view showing a set state of the terminals of the lamp with respect to the conductor wire of the electric wire in the second embodiment.

FIG. 25 is a cross-sectional view showing a state where the lamp, the electric wire, the base member and the holder member are assembled in the second embodiment.

FIG. 26 is a bottom view showing a contact state between the lead wire of the electric wire and the terminal of the lamp in the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 lamp 1a tube 1b wedge part 1c, 1d terminal 2 electric wire 2a, 2b conducting wire 2c coating material 2d coating removing part 2e coating existing part 3 base member 3e, 3f contact part clamping wall 4 holder member 4c lamp insertion port 5 filling material

Claims (2)

[Claims] 1. An electric wire provided with a lamp having a pair of terminals and a wedge portion provided on a bulb, two electric wires and a covering material for covering these electric wires, and an electric wire provided on the electric wire. A pair of a coating removal portion where the coating material is removed and the conductor wire is exposed, and a coating existing portion which remains before and after the coating removal portion of the electric wire and in which the coating material is not removed. A base member having a contact portion holding wall, and a lamp insertion opening for inserting the lamp, and a holder member fixed to the base member, wherein the electric wire, The lamp is inserted between the base member and the holder member in a state of being located between the contact portion holding walls, and the lamp is inserted into the lamp insertion opening to expose the wedge portion in the coating removing portion. Between the conductors On the other hand, the portion opposite to the wedge portion is projected to the outside of the holder member and the base member, and one of the terminal of the lamp and the lead wire is in contact with each other and one of the contact portion holding walls. And the wedge portion, and the other of the terminal of the lamp and the lead wire is sandwiched between the other of the holding wall and the wedge portion while being in contact with each other. apparatus. 2. The lighting device according to claim 1, wherein a space surrounded by the lamp, the base member and the holder member is filled with a filler having water resistance and electrical insulation.