JP2786019B2 - 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 lamp used for decorating a Christmas tree or the like.

[0002]

2. Description of the Related Art In general, a decorative lamp of this type has a structure in which a terminal plate and a cord wire are assembled to a socket body, and a supporting portion for supporting a light bulb is assembled to the socket body. For example, a terminal plate in which a through hole that penetrates in the axial direction of the socket body is formed in the socket body, and a code wire having a relatively large-diameter sheath is connected to the through hole from the bottom side of the socket body. Insert and fix a pair of terminal plates in the terminal plate mounting groove of the inner wall of the socket, assemble the bulb to the support, expose the lead wire of the bulb from the bottom of the support, bend it to the side, and fold it to the side of the bottom of the support Is assembled in the top of the socket main body, so that the lead wire of the light bulb is brought into contact with the terminal plate in the socket main body to enable conduction between them.

[0003]

However, when the bottom side of the support portion is to be assembled in the socket body, the lead wire of the light bulb exposed from the bottom to the side surface of the support portion is not restricted at all. The lead wire of the bulb may be displaced due to the frictional resistance between the lead wire and the inner wall of the socket body. There was a risk of failure. For this reason, there were problems such as troublesome re-assembly of the socket body and the shade body again.

[0004] The present invention has been made in view of the above circumstances.
There, the socket body and the support portion can be easily fitted without causing contact failure between the terminal plate formed on the lead wire and the socket body of the bulb, moreover, form the support portion
Insert the lead wire quickly and smoothly into the formed through hole
At the time of assembly work.
Wire can be prevented from breaking.
Can significantly improve the productivity of the assembly of the holding part and the bulb.
Is an object of the present invention to provide a decorative lamp that can be.

[0005]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
The present invention includes a light bulb, a support portion for supporting the light bulb, and a socket body having a release portion for mounting the support portion at one end in the axial direction, and a lead wire of the light bulb in the back of the release portion. In a decorative lamp in which a pair of conducting terminal plates are assembled, the release portion is formed in a cylindrical portion at one end in the axial direction of the socket body, and the support portion is a cylindrical portion fitted to the cylindrical portion; from projecting to the cylindrical portion coaxially,
And the lead wire of the bulb supported by the supporting portion
A cylindrical portion having a through-hole formed so as to protrude therefrom, the outer surface of the cylindrical portion has a tapered tip having a slight degree of taper, and both side surfaces of the rectangular portion are slightly larger than the outer surface of the cylindrical portion. It is a tapered tip having a degree of taper, and the tip of the both side faces of the prism portion is located in front of the prism portion.
Chamfer having a large taper degree than serial sides is its
They are respectively formed, each chamfered portion, protruding from the through hole
Bend the lead wire of the light bulb to be turned on the both sides of the prism
Guides, and guides such that the lead wire of the light bulb is submerged
Grooves are formed respectively, and furthermore, the
A vertical plate that divides only the vicinity of the tip opening into two at the tip opening of the through hole
Characterized in that a partition wall is formed .

[0006]

[Action] Hereinafter, the operation of the present invention will be described. Socket
When the mounting of the support section to the release section of the
The prism at the tip of the support penetrates through the cylindrical part
A pair of parallel terminal boards installed inside the release section
In between, the prismatic part is guided by the chamfered part of the tip surface and smoothly
The prism that penetrated and deeply penetrated between the pair of terminal boards was chamfered.
Each terminal board is inserted by the taper action of both sides continuous from the part.
Side to the inner wall side of the release section, and expose
The lead wire of the bulb that extends and bends to both sides
Adhere completely to the surface. In addition, following the prism, it invades the cylinder.
The cylindrical part of the support part to enter is slightly tapered by the outer surface
The cylindrical portion is fitted in the cylindrical portion to prevent rattling of the cylindrical portion.

Further , the lead wire of the light bulb is connected to the prism portion of the supporting portion.
Protruding from the tip, through the guide groove of the chamfered part on both sides
Bend it. Guide grooves formed in each chamfer
Then, the bent part of the lead wire of the light bulb is set
So that the prism of the support part is
And inside the socket body when inserting
The chamfered part only contacts the surface and the terminal board,
Make sure that the bent part does not touch the inner surface of the socket body or the terminal board.
And not. Therefore, insert the support into the socket body
When applying a load (lead wire)
It is possible to effect the direction of the tensile load to take disconnect from the bulb)
Is prevented. This makes it possible to plant leads, especially on light bulbs.
Disconnection at the junction (the boundary between the bulb and the lead wire) is reduced.
You.

[0008] By the way, in the manufacturing process of a light bulb, a filament is used.
Heat the glass to a high temperature when enclosing
At this time, the lead connected to the filament
The lead wire is heated and the lead wire, especially on the glass bulb, is planted.
Lead wire has deteriorated and its tensile strength has dropped significantly.
To the lead wire when inserting it into the socket body.
If the weight acts, the wire will break immediately at this point. did
Therefore, as described above, a guide groove is
Do not apply a tensile load to the lead wire.
It is extremely effective in stopping.

Further, usually, a large number of decorative lamps are connected in series.
(For example, 100 to 200 units)
When the lead wire of one decoration light is broken
Means that all decorative lights will not be available and
From the point of view, which of the many decorative lights
Unknown. Therefore, defects were found due to disconnection
In some cases, all of the decorative lights are
Inspections must be removed and the inspection man-hours are enormous.
I will. Moreover, the decoration light is a Christmas tree etc.
Used in units of tens of thousands,
The reduction in disconnection due to the configuration is
Can greatly improve productivity.
You.

[0010] Then, from the tip end surface of the prism portion to both side surfaces
Each exposed lead wire is constrained in the guide groove.
Therefore, insert the prism of the support into the cylinder of the socket body.
During the insertion, each lead wire should be
Lead wire misalignment due to frictional resistance of both
And the prismatic part is more secure with the inner surface of the terminal board.
Contact. Therefore, the lead wire is
As long as it is bundled, it always contacts the terminal board, and both sides have poor contact
No worries.

Next, regarding the function of the partition wall, the support portion is electrically charged.
When assembling a bulb, insert a pair of bulb leads
Keep it parallel or slightly open, adjust the through hole in the support
Insert the tip of each lead wire of the bulb into the
The tip of the wire is split into two hands, and the tip is split into two by the partition.
The ends of the lead wires protrude from the mouth. Sand
That is, only the vicinity of the tip opening is divided into two at the tip opening of the through hole.
A vertical plate-shaped partition wall is formed.
Wire can be inserted into one through-hole, as in the past.
Refit with two through holes formed corresponding to the lead wires
When inserting a lead wire, insert the through hole outside the socket body.
You have to insert the lead wire while watching from
Even a skilled worker can simultaneously re-insert into two through holes with one insertion.
It is difficult to insert the lead wire and you have to start over.
Could not be inserted, but according to the invention,
Easy, quick and secure insertion at once without looking through holes
You can enter. And lead wire in the late stage of insertion
Is ensured by the partition formed only in the opening of the through hole.
Can be projected separately. This is
As before, the decorative light of the present invention is a Christmas tree
Etc., and are manufactured in tens of thousands units.
Configuration allows the lead wire to project smoothly and quickly from the through hole.
Being able to do so can significantly increase productivity.
You can do it.

[0012]

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

1 to 4 show a first embodiment of the present invention. In these figures, reference numeral 1 denotes a socket body,
Reference numeral 2 denotes a support portion, reference numeral 3 denotes a light bulb, and these reference numerals 1 to
Reference numeral 3 designates a decorative lamp of the present invention.

As shown in FIG. 3, the socket body 1 has a hollow columnar body formed with a release portion 4 at one axial end, and a through hole 5 opened at the axial other end of the hollow columnar body. The through hole 5 is formed and is divided into two by a partition wall 6.
The release portion 4 has one end in the axial direction of the socket body 1 formed in the cylindrical portion 7, and the other end in the axial direction of the socket body 1 formed in the square tube 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. The rectangular tube portion 8 is fixed in each mounting groove of each terminal plate 10 connected to the tip of a pair of cord wires 9 inserted from the outside of the through hole 5 to the inside.

The support portion 2 is a member for supporting the light bulb 3, and has a cylindrical portion 12 fitted to the cylindrical portion 7 of the release portion 4 of the socket body 1, and a rectangular tube protruding from the tip of the cylindrical portion 12. And a prism portion 13 inserted into the portion 8.
As shown in FIG. 2, a concave portion 14 is provided on the upper surface of the cylindrical portion 12 so as to extend toward the prism portion 13 and into which the base end of the bulb 3 is inserted.
Is penetrated, the bottom surface of the concave portion 14 through hole 16 extends through the insertion of the pair of lead wires 15 of the opening and bulb 3 to the distal end surface of the prism portion 13. At the tip of the through hole 16, a partition wall 17 that divides only the vicinity of the tip opening of the through hole 16 into two is provided. Also, chamfered portions 18 are formed on both sides of the distal end surface of the prism 13, and each of the chamfered portions 18 has a through-hole 16 protruding outward as shown in FIGS. 1 and 2. 3 is a guide groove 18a for bending and guiding the lead wires 15, 15 to both side surfaces 13a, 13a of the prism portion 13.
Are formed, and when the prism 13 is inserted into the release portion 4, each lead wire 15 is restrained in each guide groove 18a. The size of the guide groove 18a will be described later.
To the size where the bent part of the lead wire 15
Has become.

The outer surface of the cylindrical portion 12 has a tapered shape with a slight taper toward the tip , and both side surfaces of the prism portion 13 (the sides where the tips of the lead wires of the bulb 3 are located) 13a, 13a Is tapered at the tip with a degree of taper slightly larger than the outer surface of the cylindrical portion 12 toward the tip, and smoothly inserts the prism portion 13 into the release portion 4 and smoothly inserts the cylindrical portion 12 into the cylindrical portion 8. Enables good contact between the lead wire 15 on the side surface 13 a of the prism 13 and the inner surface of each terminal plate 10.

The decorative lamp having such a structure is assembled as follows. Through hole 16 for socket body 1
Then, the pair of terminal plates 10 and the lead wires 9 are inserted into the release portion 4, and each terminal plate 10 is attached to a predetermined position of the rectangular tube portion 8 in parallel. Also, for the support part 2, the bulb 3 is
Each lead wire 15 of the light bulb 3 is inserted through the through hole 16 and each lead wire 15 protruding outside the prism portion 13 is bent along each side surface 13a, 13a through each guide groove 18a (FIG. 1, FIG. 3 and 4).

Subsequently, the prism 13 at the tip of the support 2 is inserted into the prism 8 through the cylinder 7 of the release 4 of the socket body 1. First, the chamfered portion 18 of the prism 13 is guided smoothly between the terminal plates 10 and 10 positioned in parallel in the rectangular tube portion 8 and smoothly enters. The prism 13 penetrates deeply between the terminal plates 10 and 10 while abutting against the inner surfaces of the plates 10 and 10 and pressing the terminal plates 10 and 10 toward the inner wall of the rectangular tube portion 8 (see FIG. 2).

At this time, the side surfaces 13
a of each terminal board 1 in a state in which each lead wire 15 exposed toward “a” is restrained rearward by the guide groove 18 a of each chamfered portion 18.
0 is in contact with the inner surface of the
Without contacting the inner surface of each terminal plate 10 without causing a positional shift from both side surfaces 13a. In addition, the bent portion on both sides of the lead wire 15 which is a portion that receives a large frictional resistance between the inner wall of the rectangular tube portion 8 or the upper end of each terminal plate 10 in the related art
The (bent portion) sinks into the guide groove 18a, and the chamfered portion 18
, And is smoothly inserted between the terminal plates 10 because it is not subjected to the frictional resistance and is not pressed at all. Thus, the contact with the inner surface of each terminal plate 10 is stabilized, and the lead wire 15 is not damaged. The cylindrical portion 12 following the prism portion 13 smoothly penetrates into the cylindrical portion 7 and fits deeply into the cylindrical portion 7 by the taper action of the outer surface of the cylindrical portion 12.

According to the decorative lamp of this embodiment, the prism 1
The front end of the lead wire 15 is bent to both side surfaces 13a of the prism 13 through the guide groove 18a formed in the chamfered portion 18 of the front end surface of the front end 3. Therefore, the front end of the lead wire 15 is always on the side surface 13a of the prism portion 13. The rectangular column portion 13 can be restrained while the lead wire 15 is stably contacted with the inner surface of each terminal plate 10.
Can be smoothly inserted between both terminal boards 10. Therefore, in combination with the smooth insertion effect of the prism portions 13 and the cylindrical portions 12 into the rectangular tube portion 8 and the cylindrical portion 7, the assembling of the socket body 1 and the support portion 2 is facilitated, and the inner surface of the terminal plate 10 at the time of assembling. Poor contact with the lead 15 can be eliminated.

FIG. 5 shows a modification of the present invention, in which a trumpet-shaped cap portion 20 is detachably attached to the support portion 2 so as to surround the bulb 3 supported by the support portion 2. It was done. In this example , a plurality of vertical ribs 21 are protruded near the upper end of the outer periphery of the cylindrical portion 12 of the support portion 2, and the cap portion 20 is fitted to the base end of the cap portion 21 so as to be fitted to the cylindrical portion 12 of the support portion 2. An opening 20a for assembling is formed, and a projection 2 which is undercut-coupled to the vertical rib 21 to fix the cap portion 20 and the columnar portion 12 integrally at an edge of the opening 20a.
2 are formed.

According to this embodiment , the cap 20 surrounding the bulb 3 can be detachably attached to the support 2.
The decorative effect can be further exhibited.

[0023]

The present invention is configured as described above.
Has excellent effects as described below.
You. (1) Start mounting the support section on the release section of the socket body
And the prism at the tip of the support through the cylinder of the release
Invades the back of the release section, and a pair of
The prismatic part guides between the parallel terminal boards to the chamfered part on the tip surface
Corner that penetrated smoothly and penetrated deeply between a pair of terminal boards
The pillar part is tapered by both sides continuous from the chamfer.
Press each terminal plate from the inside to the inner wall side of the release section, and
The lead wire of the bulb that is exposed from the tip and bent to both sides
Fully adhere to the inner surface of each terminal board. Also following the prism
The cylindrical part of the support that enters the cylindrical part
Fits inside the cylinder by the action of the cylinder to prevent rattling of the cylinder
Is done. As a result, the shape of the bulb lead and the socket body
Socket without causing poor contact with the formed terminal board
The main body and the support portion can be easily assembled. (2) The lead wire of the bulb protrudes from the tip of the prism portion of the support.
And bend both sides through the guide groove of the chamfer .
Good. The guide grooves formed in each chamfered section
The bent part of the lead wire of the ball is going to sink
Then, connect the prism of the support part to the cylindrical part of the socket body and the prism.
When inserting the socket into the socket,
Only touches the chamfered part, the bent part of the lead wire
Does not contact the inner surface of the socket body or the terminal board.
Therefore, when inserting the support into the socket body,
Apply load to the lead wire located at the
(Pulling load in the pull-out direction) is prevented from acting.
You. This makes it possible to connect the lead wires, especially the bulb
Disconnection at the boundary between the ball and the lead wire) is reduced. (3) Each part exposed from the end face to both sides of the prism
Since the lead wire is constrained in the guide groove, the support
On the way of inserting the prismatic part into the cylindrical part of the socket body,
Even if each lead wire touches the inner wall of the socket body,
Lead wire misalignment due to frictional resistance
And the prismatic part is more securely contacted with the inner surface of the terminal board.
You. Therefore, as long as the lead wire is
Contact with the terminal board, which may cause poor contact.
Absent. (4) Connect a pair of lead wires of the bulb
Keep the door open, and insert each lead of the bulb into the through hole of the support.
As you insert the ends of the lead wires, two ends
Lead from the tip opening divided into two by the partition
The ends of the lines protrude, respectively. That is, the tip of the through hole
The opening has a vertical plate-like partition that divides only the vicinity of the tip opening into two.
Since it is formed, one lead wire is inserted at the beginning of insertion.
It only has to be inserted into the hole, and it fits the lead wire as before.
The lead wire into the one with two through holes
In some cases, the through hole is
Wire must be inserted, and even a skilled worker can
Insert lead wires into two through holes at the same time
It's difficult and can be inserted without undoing
Although it was not possible, according to the present invention, without looking at the through hole
It can be inserted easily, quickly and securely at one time
You. In the later stage of insertion, the lead wire is
The partition is formed only on the partition and is surely divided into two.
Can be This is similar to the book
The decorative lamp of the invention is used for Christmas trees, etc.
It is manufactured in units of ten thousand units.
The wire can be projected smoothly and quickly from the through hole.
Is, Der what can and this greatly improve the productivity
You.

[Brief description of the drawings]

FIG. 1 is an exploded view of a decorative lamp according to a first embodiment of the present invention.

FIG. 2 is an assembly view of the decorative lamp.

FIG. 3 is a sectional view of a support portion of the decorative lamp.

FIG. 4 is a perspective view of a main part of the support portion.

FIG. 5 is a cross-sectional view showing a supporting portion and a cap portion of a decorative lamp according to a modification of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Socket main body 2 Support part 3 Light bulb 4 Release part 5 Through-hole 6 Partition wall 7 Cylindrical part 8 Square tube part 9 Code wire 10 Terminal board 12 Column part 13 Square column part 13a Side surface 14 Depression 15 Lead wire 16 Through-hole 16a Tip opening 17 Partition 18 Chamfer 18a Guide groove.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01K 1/46 H01R 33/06

Claims (1)

(57) [Claims] 1. A light bulb, a supporting portion for supporting the light bulb,
A socket body having a release portion for mounting the support portion at one end in the axial direction, and a pair of terminal plates electrically connected to a lead wire of the light bulb installed at the back of the release portion. The cylindrical portion is formed at one end in the axial direction of the socket body, and the support portion protrudes coaxially with the cylindrical portion from the cylindrical portion fitted to the cylindrical portion.
And the lead wire of the bulb supported by the support portion
Having a prismatic portion formed with a through hole protruding from the surface ,
The outer surface of the cylindrical portion has a tapered tip shape having a slight taper degree, and both side surfaces of the prism portion have a tapered tip shape having a slightly larger taper degree than the outer surface of the cylindrical portion, and the opposite sides of the prism portion At the end of the surface
A chamfer having a greater degree of taper than the side surfaces
Are formed respectively, each chamfer, collision from the through hole
Fold the lead wire of the light bulb out to the both sides of the prism
Guide, and the bent part of the lead wire of the bulb sinks.
Guide grooves are formed, and
Only the vicinity of the opening at the tip of the through hole of the prism portion
A vertical plate-shaped partition wall for dividing the light into two.