JPH0736340B2 - Decorative light - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative light used for decorating a Christmas tree or the like.

[0002]

2. Description of the Related Art Generally, in this type of decorative light, a terminal plate and a cord wire are attached to a socket body, and a light bulb is attached to a shade body. For example, a terminal plate in which a through hole penetrating in the axial direction of the socket body is formed in the socket body, and a cord wire having a relatively large diameter jacket is connected to the through hole from the bottom side of the socket body is provided. Insert and fix the pair of terminal plates in the terminal plate mounting groove on the inner wall of the socket.
Attach the bulb to the shade body, expose the lead wire of the bulb from the bottom of the shade body, bend it to the side, and assemble the bottom side of the shade body into the top part of the socket body to connect the lead wire of the bulb to the terminal inside the socket body. Both are made conductive by contacting the plate.

[0003]

However, when attempting to assemble the bottom side of the shade body into the socket body, the lead wire of the bulb exposed from the bottom portion of the shade body to the side surface is not restrained at all. The lead wire of the bulb may be displaced due to frictional resistance between the lead wire and the inner wall of the socket body.This displacement causes the lead wire conductor part to separate from the terminal board when the shade body is assembled, and the two may come into contact with each other. There was a risk of causing defects. For this reason, there is a problem in that the assembly of the socket body and the cap body has to be done again.

The present invention has been made in view of the above circumstances, and provides a decorative light in which the socket body and the cap body can be easily assembled without causing a contact failure between the lead wire of the light bulb and the terminal plate. Is intended.

[0005]

According to the present invention, there is provided a light bulb, a shade body to which the light bulb is assembled, and a socket body having an opening portion for mounting the shade body at one axial end. Is a decorative electric lamp in which a pair of terminal plates electrically conductive to the lead wires of the light bulb are assembled, wherein the opening portion forms one end side in the axial direction of the socket body into a cylindrical portion, and the cap body includes the cylindrical portion. And a prismatic portion that is coaxial with the cylinder portion and that protrudes from the tip surface of the lead wire of the light bulb assembled to the shade body. A hole is formed, and chamfered portions are formed at both ends of the tip end surface of the prismatic portion, and the lead wire of the light bulb protruding from the through hole is bent in each chamfered portion to both parallel side surfaces of the prismatic portion. A guide groove for guiding is formed.

[0006]

[Function] The lead wire of the light bulb is projected from the tip of the prismatic portion of the shade body, and each lead wire is bent in parallel to both side surfaces through the guide groove of the chamfered portion. When the prismatic portion of the cap body is inserted into the open portion of the socket body, the lead wires exposed from the tip end surface to both side surfaces of the prismatic body are constrained in the guide groove, so Even if the lead wire comes into contact with the inner wall of the socket body, the frictional resistance between the lead wire and the lead wire does not cause displacement, and by inserting the prismatic portion between the terminal plates, the lead wires on both sides are restrained in the guide grooves. Make sure to contact the inner surface of each terminal board as it is. Therefore, as long as the lead wire is constrained by the guide groove, the lead wire is always in contact with the terminal plate, and there is no risk of contact failure between the two.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 4 show an embodiment of the present invention. In these drawings, reference numeral 1 is a socket body, reference numeral 2 is a cap body, and reference numeral 3 is a light bulb. The decorative light of the present invention is configured.

As shown in FIG. 3, the socket body 1 has a release portion 4 formed at one axial end of the hollow columnar body, and a through hole 5 opening at the release portion 4 at the other axial end of the hollow columnar body. It is formed, and the through hole 5 is divided into two by a partition wall 6.
The releasing portion 4 is formed such that one end side in the axial direction of the socket body 1 is formed into a cylindrical portion 7, and the other end side in the axial direction of the socket body 1 is formed into a square tubular portion 8 having a smaller cross-sectional area than the cylindrical portion 7. The cross-sectional shape of the portion 8 is the same as the cross-sectional shape of the through hole 5. Each terminal plate 10 connected to the tip of a pair of lead wires 9 inserted from the outside to the inside of the through hole 5 is fixed in each of the mounting grooves in the rectangular tube portion 8.

As shown in FIG. 3, the cap body 2 has a columnar portion 12 fitted to a cylindrical portion 7 of the release portion 4 of the socket body 1 at the base end of a trumpet-shaped cap portion 11 that covers the light bulb 3. Is formed, and a prism portion 13 to be inserted into the prism tube portion 8 projects from the tip of the cylinder portion 12. Further, as shown in FIG. 2, a recess 14 is formed in the inner surface of the cap portion 11 so as to extend into the cylindrical portion 12 and into which the base end portion of the light bulb is inserted.
A through hole 16 is formed on the bottom surface of the base plate 4 at the tip end surface of the prismatic portion 13 for inserting the pair of lead wires 15 of the electric bulb 3. At the tip of the through hole 16, a partition wall 17 that divides the opening at the tip of the through hole 16 is provided. Further, chamfered portions 18 are formed at both ends of the tip end surface of the prismatic portion 13,
As shown in FIGS. 1 and 2, each of the chamfered portions 18 has a lead wire 1 of the light bulb 3 which is inserted through the through hole 16 and protrudes to the outside.
A guide groove 18a for bending and guiding 5 and 15 to the parallel side surfaces 13a, 13a of the prism portion 13 is formed.
The lead wires 15 are constrained in the guide grooves 18a when they are inserted into the release portion 4.

The outer surface of the cylindrical portion 12 has a tapered shape with a slight taper toward the tip, and both parallel side surfaces of the prismatic portion 13 (the side on which the tip of the lead wire of the light bulb 3 is located) 13a. , 13a have a tapered tip shape having a taper degree slightly larger than the outer surface of the cylindrical portion 12 toward the tip, so that the prismatic portion 13 can be smoothly inserted into the open portion 4 and the cylindrical portion 12 can be smoothly inserted into the cylindrical portion 8. Further, the lead wire 15 on the side surface 13a of the prismatic portion 13 and the inner surface of each terminal plate 10 can be brought into good contact with each other.

The decorative light having such a structure is assembled as follows.

With respect to the socket body 1, the pair of terminal plates 10 and the lead wires 9 are inserted into the open portions 4 through the through holes 16, and the respective terminal plates 10 are attached in parallel to predetermined positions of the rectangular tube portion 8. Further, with respect to the shade main body 2, the light bulb 3 is mounted in the concave portion 14, and the lead wire of the light bulb 3 is inserted into the through hole 16 and protrudes to the outside of the prism portion 13. Bend along 13a, 13a (see FIGS. 1, 2 and 3).

Subsequently, the prismatic portion 13 at the tip of the cap body 2 is inserted into the rectangular tube portion 8 through the cylindrical portion 7 of the release portion 4 of the socket body 1. First, the chamfered portion 18 of the prismatic portion 13 is guided between the terminal plates 10 and 10 positioned in parallel in the rectangular tubular portion 8 and smoothly enters, and the tapered side surfaces 13a and 13a continuing from each chamfered portion 18 are While contacting the inner surfaces of the terminal plates 10 and 10 and pressing the terminal plates 10 and 10 toward the inner wall side of the rectangular tube portion 8, the prismatic portion 13 deeply penetrates between the terminal plates 10 and 10.
(See Figure 4).

At this time, from the tip surface of the prismatic portion 13 to both side surfaces 13
Each lead wire 15 exposed to a is restrained rearward by the guide groove 18a of each chamfer 18, and each terminal board 1
Since each lead wire 15 comes into contact with the inner surface of
The inner surface of each terminal plate 10 can be stably contacted without any positional deviation from both side surfaces 13a. Further, the bent portions on both sides of the lead wire 15 which are portions that are largely subjected to frictional resistance between the inner wall of the square tubular portion 8 or the upper end of each terminal plate 10 are sunk in the guide groove 18a and protected by the chamfered portion 18. ,
Since it does not receive the frictional resistance at all and is not pressed, it is smoothly inserted between the terminal plates 10 and, by this, also the terminal plates 1
The contact with the 0 inner surface is stable, and the lead wire 15 is not damaged.

The cylindrical portion 12 following the prismatic portion 13 smoothly enters the cylindrical portion 7 and deeply fits into the cylindrical portion 7 due to the taper action of the outer surface of the cylindrical portion 12.

According to the decorative light of this embodiment, the prismatic portion 1
Since the tip of the lead wire 15 is bent to both side surfaces 13a of the prism portion 13 through the guide groove 18 formed in the chamfered portion 13a of the tip surface of 3, the tip of the lead wire 15 is always placed on the side surface 13a side of the prism portion 13. The prismatic portion 13 can be restrained and the lead wire 15 can be stably contacted with the inner surface of each terminal board 10.
Can be smoothly inserted between both terminal boards 10. Therefore, combined with the smooth insertion effect of the prismatic portion 13 and the cylindrical portion 12 into the rectangular tubular portion 8 and the cylindrical portion 7, the socket body 1 and the cap body 2 are easily assembled, and at the time of assembly, the inner surface of the terminal board 10 is Poor contact with the lead wire 15 can be eliminated.

[0018]

As described in detail above, the present invention is
A light bulb, a shade main body to which the light bulb is assembled, and a socket main body having an opening portion for mounting the shade main body at one end in the axial direction, and a pair of terminal plates electrically conductive to the lead wires of the light bulb behind the opening portion. a decorative lamp which attached assembled, said releasing unit forms an axial end side of the socket body into a cylindrical portion,
The shade main body has a columnar portion that fits into the cylinder portion and a prismatic portion that protrudes from the cylinder portion coaxially with the cylinder portion. To form a through hole for projecting from the tip surface, and chamfered portions are formed at both ends of the tip surface of the prismatic portion,
Since each chamfer has a guide groove for bending and guiding the lead wire of the light bulb protruding from the through hole to both parallel side surfaces of the prismatic portion, both side surfaces of the prismatic portion are restrained by the guide groove. Each of the prismatic and cylindrical parts, such as the cylindrical part of the open part, does not cause the lead wire to be displaced.
It can be smoothly inserted into. As a result, the socket main body and the cap main body can be easily assembled, and the contact between the lead wire of the light bulb and the inner surface of each terminal plate can be stabilized during the assembly of the both, thereby eliminating the contact failure. Also, especially, prisms
Chamfers are formed on both ends of the tip of the
The lead wire of the light bulb protruding from the through hole is attached to the prism
Guide grooves are formed to bend and guide to both sides of the parallel part
As a result, the lead wires of the bulb are placed in these guide grooves.
It is possible to insert the prismatic part into the cylindrical part with it set in place.
At this time, if the tip of the prismatic part is formed at a substantially right angle,
Significantly reduces wear on the bulb lead wires compared to
It is possible to prevent the lead wires from being cut. Furthermore
In addition, the lead wire of the light bulb is bent and guided in the guide groove.
Thus, it is possible to reliably position each lead wire.
Therefore, when the prismatic part is inserted into the cylindrical part, each lead
The wire can be securely and electrically connected to the terminal board.
To improve the safety of the assembly work of the
And improve the efficiency of these assembly operations.
be able to. Therefore, it produces a large number of decorative lights.
Can improve the production efficiency of decorative lights.
It is possible to reduce the production cost of decorative light.
Wear.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a shade main body in a decorative light according to the present invention.

FIG. 2 is a cross-sectional view of a shade main body in which a light bulb is assembled.

FIG. 3 is an exploded cross-sectional view of a decorative light.

FIG. 4 is an assembled sectional view of a decorative light.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Socket main body 2 Shade main body 3 Light bulb 4 Opening part 7 Cylindrical part 8 Square tube part 10 Terminal plate 12 Column part 13 Square column part 13a Side surface 18 Chamfer part 18a Guide groove.

Claims (1)

[Claims] 1. A light bulb, and a shade body to which the light bulb is assembled,
A ornamental electric lamp, comprising: a socket body having an opening portion for mounting the shade body at one end in an axial direction, and a pair of terminal plates that are electrically conductive to lead wires of the light bulb being assembled in the interior of the opening portion. The axially one end side of the socket body is formed into a cylindrical portion, and the cap body has a cylindrical portion that fits into the cylindrical portion and a prism portion that projects from the cylindrical portion coaxially with the cylindrical portion. The prismatic portion is formed with a through hole for projecting the lead wire of the light bulb assembled to the shade body from the tip end surface, and chamfered portions are formed at both ends of the tip end surface of the prismatic portion. A decorative electric lamp, characterized in that a guide groove is formed for bending and guiding the lead wire of the light bulb protruding from the through hole to both parallel side surfaces of the prismatic portion.