JP2002184543A - Socket for decoration bulb - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a socket for a decoration bulb which can surely prevent dislocation of a lead wire while aiming at facilitating in molding technology by simplifying a structure. SOLUTION: The socket for decoration bulbs is composed of a bottom member and a top member inserted in and combined with the top part of the bottom member. The top member 4 is equipped with a rectangular column part 44 of cross-section oblong which can be inserted into the bottom member. Through- holes 47, 47 are formed on either side pinching a leg part 42 at bottom end face 46 of the rectangular column part 44. The through-hole 47 is nearly of a triangle shape similar to a fan, the apex 48 of which is directed toward corresponding side faces 49, 49 of the rectangular column part 44.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative light bulb socket used as an illumination by connecting a plurality of lamps.

[0002]

2. Description of the Related Art FIGS. 11 and 12 show a conventional socket for a decorative bulb. The decorative bulb socket 100 is made of synthetic resin, and includes a lower member 200 and an upper member 300 fitted and arranged on the upper portion of the lower member 200 as shown in FIG. The lower member 200 is cylindrical and has a cylindrical section 20 having a circular cross section at the upper end.
And a rectangular tube section 2 having a rectangular cross section
02 is formed. A pair of terminal plates 203, 203 are disposed on the inner peripheral portions of the rectangular tube portion 202 facing each other.
4 are connected.

On the other hand, the upper member 300 is also cylindrical,
As shown in FIGS. 1 and 12, a cylindrical portion 301 and a prism portion 302 to be fitted in the cylindrical portion 201 and the cylindrical portion 202 are integrally formed, and a flange 303 is formed at an upper end of the cylindrical portion 301. Have been. A concave portion 304 into which the lower portion of the electric bulb 400 is fitted is formed in the cylindrical portion 301, and a pair of lead wires 401, 401 extending from the lower end portion of the electric bulb 400 are inserted into the rectangular column portion 302. 3
05 and 305 are provided. Further, the prism 302
Are formed at both corners at the lower end, and a guide groove 307 is formed in the chamfered portion 306.

In such a configuration, upon manufacture, the electric bulb 400 is fitted into the concave portion 404 of the upper member 300, and the lead wires 401, 401 are projected downward from the through holes 305, 305. Next, the protruding portions of the lead wires 401, 401 are bent laterally while being accommodated in the guide grooves 307, 307,
As shown in FIG. 11, it is located on the side surface of the prism 302.

After that, the lower end of the upper member 300 on which the light bulb 400 is mounted is inserted from the upper end of the lower member 200 into the inside. As a result, the cylindrical portion 301 is
01 and the prism portion 302 is
Fits. Further, by fitting the prism portion 302 into the prism portion 202, the lead wires 401, 401 come into contact with the terminal plates 203, 203 to be in a conductive state.
The decorative light is completed.

[0006] At this time, since the lead wires 401, 401 are accommodated and restrained in the guide grooves 307, 307, when inserting the upper member 300 into the lower member 200, the lead wires 401, 401 are in the middle of insertion. Is in contact with the inner wall of the lower member 200, the lead wires 401, 401 are not displaced by the frictional resistance of the two members, and the terminal plate 2
03, 203 and lead wires 401, 401 can be prevented from being poorly contacted.

[0007]

However, the decorative bulb socket 100 is a small product, and the upper member 3
00 has a narrow width of about 3 mm at its lower end surface. Therefore, the through holes 305, 305, the chamfers 306, 306, the guide groove 3
It is extremely difficult to form a plurality of elements 07 and 307 intensively in terms of molding technology. For this reason, the guide groove 307,
307 is a proper direction along the bending direction of the lead wires 401, 401, and
It is also difficult to form the layer at a sufficient depth corresponding to the diameter of No. 1. As a result, as described above, the guide grooves 307, 307
It is also difficult to obtain the effect of preventing the lead wires 401 from being displaced due to the above. Therefore, due to the displacement of the lead wires 401 during the assembling process, the terminal plate 20
There is a concern that poor contact between the lead wires 3 and 203 and the lead wires 401 and 401 will occur, and the product yield will be reduced.

SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem, and it is intended to simplify the construction by simplifying the configuration and to surely prevent the displacement of the lead wire. It is an object of the present invention to provide a decorative bulb socket that can be used.

[0009]

In order to solve the above-mentioned problems, the present invention comprises a lower member and an upper member which fits inside the lower member, and the lower member has a cylindrical shape. A pair of terminal plates facing each other is disposed on the inner peripheral portion, and a fitting portion for fitting the lower member is formed on the upper member while the bulb is supported at the upper end. A pair of through-holes are formed in the lower end surface of the portion, and a pair of lead wires extending from the bulb are protruded downward from the through-hole to be folded and positioned on the corresponding both side surfaces of the fitting portion. And a lower end surface of the fitting portion in the decorative light bulb socket in which the lead wires positioned on both side surfaces of the fitting portion are brought into contact with the terminal plate with the fitting of the upper member and the lower member. A pair of through-holes formed in the polygonal shape having vertices in the direction of both sides of the fitting portion And Aru.

Therefore, when the light bulb is supported on the upper end of the upper member and the lead wire is projected downward from the through hole and then turned back, the lead wire is guided by the polygonal through hole and positioned at the apex thereof. You. Therefore, the lead wire is positioned and guided by the vertex, extends on the side surface of the fitting portion, and when inserting the upper member supporting the light bulb into the lower member, the lead wire is not displaced, Contact the terminal board on the lower member side.

Here, only a polygonal through hole is formed in the lower end surface of the fitting portion of the upper member, that is, only a single element is formed in the lower end surface of the fitting portion of the upper member. With this configuration, molding can be easily performed without difficulty in molding technology using a synthetic resin. Therefore,
Polygonal through-holes can be molded with high precision, and as a result, it is possible to reliably prevent misalignment of the lead wires while facilitating the molding technique.

Further, in the present invention, the through hole has a substantially triangular shape. That is, if the through hole is substantially triangular,
The shape of the through hole is the simplest, and the molding technology using a synthetic resin makes the molding easier, so that the through hole can be molded with high accuracy, and as a result, the displacement performance of the lead wire is also improved.

Further, the present invention comprises a lower member and an upper member which fits inside the lower member, and the lower member has a cylindrical shape and a pair of terminal plates opposed to each other on an inner peripheral portion thereof. The upper member has a fitting portion fitted to the lower member while a light bulb is supported at an upper end portion, and a pair of through holes is formed at a lower end surface of the fitting portion, A pair of lead wires extending from the light bulb are protruded downward from the through-hole and folded back, and are positioned on the corresponding both side surfaces of the fitting portion, with the fitting of the upper member and the lower member. Further, in the decorative bulb socket in which the lead wires located on both side surfaces of the fitting portion are brought into contact with the terminal plate, the terminal plate is formed in a curved shape curved inward.

Therefore, the upper member is connected to the lower member in a state in which the pair of lead wires extending from the light bulb is projected downward from the through hole and folded, and is positioned on the corresponding both side surfaces of the fitting portion. At the time of fitting, the contact resistance between the lead wire and the terminal plate can be reduced because the terminal plate has a curved shape curved inward. For this reason, it is possible to smoothly insert the upper member into the lower member even if only the through-hole is formed in the lower end surface without forming chamfered portions at both lower corners in the fitting portion of the lower member. . Therefore, since the upper member can be smoothly inserted into the lower member as described above, it is possible to prevent the displacement of the lead wire.

Further, the present invention comprises a lower member and an upper member which fits inside the lower member, and the lower member is cylindrical and has a pair of terminal plates opposed to each other on an inner peripheral portion thereof. The upper member has a fitting portion fitted to the lower member while the light bulb is supported at an upper end portion, and a pair of through holes is formed at a lower end surface of the fitting portion. A pair of lead wires extending from the bulb are projected downward from the through hole and folded back, and are positioned on the corresponding both side surfaces of the fitting portion, with the fitting of the upper member and the lower member. In the decorative light bulb socket for contacting the lead wires positioned on both side surfaces of the fitting portion with the terminal plate, the terminal plate has a slanted guide portion having an upper end displaced outward. is there.

Therefore, the upper member is connected to the lower member while the pair of lead wires extending from the bulb protrudes downward from the through hole and is folded, and is positioned on the corresponding both side surfaces of the fitting portion. When fitting, the terminal plate is formed with a slanted guide portion whose upper end is displaced outward, so that the fitting portion of the upper member is fitted while being guided, and the lead wire and the terminal plate are connected. The initial contact resistance can be reduced. For this reason, it is possible to smoothly insert the upper member into the lower member even if only the through-hole is formed in the lower end surface without forming chamfered portions at both lower corners in the fitting portion of the lower member. . Therefore, since the upper member can be smoothly inserted into the lower member as described above, it is possible to prevent the displacement of the lead wire.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the decorative bulb socket 1 according to the present embodiment is made of a synthetic resin, and includes a lower member 2 and an upper member 4 which is fitted inside the lower member 2 so as to be fitted therein.
It is composed of

The lower member 2 is cylindrical and has a non-cylindrical portion 21 and a cylindrical portion 22 at its inner peripheral portion as shown in FIGS.
Are connected to each other via a shelf 23. Non-cylindrical part 21
As shown in FIG. 3, the surfaces facing each other are flat, and the cylindrical portion 22 has a circular cross section. 4A, on both sides of the shelf 23, there are provided terminal plate arrangement portions 24, 24 which enter the non-cylindrical portion 21 side.
As shown in FIG. 3, the terminal plate arrangement portions 24 and 24 have an inwardly curved shape. Further, as shown in FIGS. 2 and 4, the upper edge of the lower member 2 has a horizontal step 25.
And a tapered upright surface 26 which is continuous with the base of the step 25 and whose upper side is reduced in diameter. This allows
A protruding edge 27 having a tapered upright surface 26 on the outer peripheral portion is formed on the step portion 25.

As shown in FIGS. 5 to 7, the upper member 4 includes a fitting portion 41, a leg portion 42 extending from a lower end portion of the fitting portion 41, and a flange portion formed on the upper portion. 43 integrally. The fitting portion 41 is cylindrical, and the lower member 2
And a cylindrical section 44 which can be fitted inside the non-cylindrical section 21 and has a rectangular cross section, and a cylindrical section 45 which can be fitted inside the cylindrical section 22 and has a circular section.

The leg 42 is provided at the lower end surface 46 of the prism 44.
It protrudes downward from the central part. The lower end surface 46 of the prism 44 is provided with a through hole 4 on both sides of the leg 42.
7, 47 are formed. As shown in FIG. 6, the through hole 47 has a substantially triangular shape approximating a fan shape,
The apex 48 corresponds to the corresponding side surface 4 of the prism portion 44.
It is formed in the direction toward 9, 49.

The side surfaces 49, 49 of the prism 44 are provided with a pair of holding ribs 50, 50, respectively.
The pair of holding ribs 50 have a width capable of holding a lead wire 61 extending under the bulb 6 shown in FIG. 1 therebetween. Also, the holding ribs 50, 50
Is provided at the upper end of the side surface 49 and is connected to the column 45.

As shown in FIG. 7, a concave portion 51 for supporting the lower portion of the bulb 6 is formed in the cylindrical portion 45 of the upper member 4 and the flange portion 43 is formed in an outer peripheral portion of the upper end. Have been. A horizontal surface 53 that can be in close contact with the step portion 25 of the lower member 2, a tapered hanging surface 54 that is continuous with the horizontal surface 53 and can be in close contact with the surface of the tapered upright surface 26, And this hanging surface 54,
A downwardly open concave portion 5 capable of receiving the protruding edge 27 in close contact therewith.
5 are provided.

On the other hand, the terminal plate arrangement portion 24 of the lower member 2
As shown in FIG. 8, the terminal plate 7 disposed in the unit 24 integrally has an upper terminal main body 71, a middle wire crimping portion 72, and a lower covered wire crimping portion 73, and has conductivity. It is formed of metal. The terminal body 71 is shown in FIG.
As shown in (c), similar to the terminal plate arrangement part 24,
The conductive wire crimping portion 72 and the covered wire crimping portion 73 are straight shapes.

At the time of manufacturing in the present embodiment having the above configuration, as shown in FIG.
The crimping portion 73 is bent and crimped on the wire 1, and the wire crimping portion 72 is crimped and crimped on the conductor 82, and the terminal plate 7 is connected to the cord 8. Next, a pair of cords 8 having the terminal portions 7 connected to the ends are inserted into the cylindrical member 22 of the lower member 2 from the cord 8 side, and as shown in FIG.
The cord 8 is made to protrude from the lower part of the lower member 2 to the outside, and the terminal main body 71 is positioned at the terminal plate disposing portion 24.

On the other hand, a light bulb 6 is
1 and inserted into the recess 51, and the lower part of the bulb 6 is
To fit. Then, the pair of lead wires 61, 61
Each of the through holes 47 protrudes downward from the corresponding through hole 47. Next, the lead wires 61, 61 projecting downward from the through holes 47, 47 are folded back in the directions of both side surfaces 49 of the prism 44. Then, the lead wire 61 is guided by the polygonal through hole 47 and positioned within the vertex 48. Therefore, the lead wire 61 is positioned by the apex 48, extends on both side surfaces 49 of the prism 44, and
Can be accurately extended on both side surfaces 49 of the prism 44 while positioning.

When the bending operation of the lead wire 61 is completed as described above, the upper end of the lead wire 61 is further press-fitted between the holding ribs 50, 50. This allows
The portion of the lead wire 61 extending on both side surfaces 49 of the prism portion 44 has its lower end positioned within the vertex 48 of the through hole and its upper end positioned by the holding ribs 50, 50. Is located along the center on both side surfaces 49.

Thereafter, the lower member 2 of the prism 44 is inserted into the lower member 2 from the cylindrical portion 22 of the lower member 2 from the side of the leg 42, with the upper member 4 having the light bulb 6 mounted thereon and the lead wires 61 positioned therein. Then, the leg portion 42 is interposed between the cords 8 and the lead wires 61, 61 respectively contact the terminal plate and the terminal main body 71 to be in a conductive state. At this time, as described above, the portion of the lead wire 61 extending on both side surfaces 49 of the prism portion 44 has its lower end positioned within the vertex 48 of the through hole and its upper end fixed by the holding ribs 50, 50. Since the lead wires 61 are positioned, the lead wires 61 can be brought into contact with the terminal main body 71 with high precision without displacement.

Here, the lower end face 4 of the prism portion 44 of the upper member 4
6 has a configuration in which only a substantially triangular through-hole is formed, that is, a configuration in which only a single element is formed in the lower end surface 46. Therefore, there is no difficulty in molding technology using a synthetic resin. Molding can be easily performed without any need. Therefore, the through hole 47 can be molded with high precision, and as a result, it is possible to reliably prevent the displacement of the lead wire 61 while facilitating the molding technique.

Further, as described above, since the terminal body 71 of the terminal plate 7 has an inwardly curved shape, even if the chamfered portions 306, 306 (see FIG. 11) are not formed as in the prior art, Thus, the upper member 4 can be smoothly inserted into the lower member 2. Further, as described above, the upper member 4
Can be smoothly inserted into the lower member 2, so that the displacement of the lead wire 61 can be prevented.

When the operation of inserting the upper member 4 into the lower member 2 is completed, the flange 25 of the upper member 4 is attached to the step 25 of the lower member 2.
3, the vertical surface 54 is in close contact with the tapered upright surface 26, and the protruding edge 27 of the lower member 2 is formed in the flange 43 of the upper member 4. It is closely received in the concave part 55 of the shape. Therefore, even when the decorative light bulb socket 1 is used outdoors, water does not enter inside from between the upper end of the lower member 2 and the upper member 4 in rainy weather, and the lighting accompanying the intrusion of water is prevented. Defects can be prevented.

In this embodiment, the through holes 4
7 is a substantially triangular shape approximating a sector shape, but the shape of the through hole 47 is not limited to this, and the vertex 48 of the through hole 47 is
Other polygons may be formed as long as they are formed in the direction toward the corresponding side surfaces 49, 49.

FIG. 13 shows a terminal plate 9 according to another embodiment of the present invention. The terminal plate 9 integrally includes an upper terminal main body 91, an intermediate conductor crimping portion 92, and a lower covered wire crimping portion 93, and is formed of a conductive metal. The terminal main body 91 includes a main body part 94 and a guide part 95 connected to the upper end of the main body part 94. The main body portion 94 is substantially straight, and the guide portion 95 is bent at a predetermined angle α at a bending line 96 and is formed in an oblique shape with its upper end displaced outward.

The terminal plate 9 bends and crimps the covered wire crimping portion 93 to the covering portion 81 of the cord 8, and
The wire crimping portion 92 is bent and crimped to be connected to the cord 8. Then, a pair of cords 8 having the terminal plates 9 connected to the ends thereof are inserted from the cord 8 side into the inside of the cylindrical portion 22 of the lower member 2, and the cords 8 are attached to the lower portion of the lower member 2 in the same manner as described above. And the terminal main body 91 is positioned at the terminal plate disposing portion 24.

On the other hand, similarly to the above, the light bulb 6 is inserted into the concave portion 51 from the lead wire 61 side of the upper member 4, and the lower portion of the light bulb 6 is fitted into the concave portion 51. Then, the pair of lead wires 61, 61 protrudes downward from the corresponding through holes 47, 47. Next, the lead wires 61, 61 projecting downward from the through holes 47, 47 are folded back in the directions of both side surfaces 49 of the prism 44. When the bending operation of the lead wire 61 is completed as described above, the upper end of the lead wire 61 is further press-fitted between the holding ribs 50, 50.
As a result, the portion of the lead wire 61 extending on both side surfaces 49 of the prism portion 44 has its lower end positioned within the apex 48 of the through hole and its upper end positioned by the holding ribs 50, 50. It is located along the center on both side surfaces 49 of the prism 44.

Thereafter, the upper member 4 on which the electric bulb 6 is mounted and the lead wire 61 is positioned is inserted into the lower member 2 from the cylindrical portion 22 of the lower member 2 through the lower member 2 of the prism 44 from the leg 42 side. Then, the leg 42 is interposed between the two cords 8, and the lead wires 61, 61 respectively contact the terminal body 91 to be in a conductive state.

At this time, the terminal body 91 of the terminal plate 9
Since the inclined guide portion 95 whose upper end is displaced outward is provided, the prism portion 44 of the upper member 4 is
While being guided by sliding contact with the inner surface of
The initial contact resistance between the lead wire 61 and the guide portion 95 can be reduced. For this reason, the upper member 4 can be smoothly inserted into the lower member 2 even if the chamfered portions 306, 306 (see FIG. 11) are not formed as in the related art. Further, since the upper member 4 can be smoothly inserted into the lower member 2 as described above, it is possible to prevent the lead wire 61 from being displaced.

When the operation of inserting the upper member 4 into the lower member 2 is completed, both side surfaces 49 of the prism 44 of the lead wire 61 are completed.
The portion extending upward makes strong contact with the substantially vertical main body portion 94, whereby a reliable contact state between the lead wire 61 and the terminal plate 9 is formed.

[0038]

As described above, the present invention comprises a lower member on which a terminal plate is arranged, and an upper member which is fitted inside the lower member, and which is supported by the upper member having a fitting portion. In the decorative light bulb socket in which the lead wire protrudes downward from the through hole and is folded and positioned on the corresponding both side surfaces of the fitting portion, and the lead wire contacts the terminal plate, the through hole is fitted. When the lead wire is turned down after protruding downward from the through hole, the lead wire is guided by the polygonal through hole and positioned within the vertex because the polygonal shape has a vertex in the direction of both sides of the part. Can be. Therefore, when the upper member supporting the light bulb is inserted into the lower member, the lead wire can be accurately brought into contact with the terminal plate on the lower member side without displacing the lead wire. Yield can be improved.

In addition, only a polygonal through hole is formed in the lower end surface of the fitting portion of the upper member, that is, only a single element is formed in the lower end surface of the fitting portion of the upper member. Because of this configuration, molding can be easily performed without difficulty in molding technology using a synthetic resin. Therefore,
Polygonal through-holes can be molded with high precision, and as a result, it is possible to reliably prevent misalignment of the lead wires while facilitating the molding technique.

Further, by making the through hole substantially triangular, the shape of the through hole can be made the simplest polygonal shape. Therefore, the molding technique using a synthetic resin makes molding easier, and the through-hole can be molded with high precision, and as a result, the displacement performance of the lead wire can also be improved.

Further, according to the present invention, since the terminal plate has a curved shape curved inward or a slanted guide portion in which the upper end is displaced outward, the lower end portion of the fitting portion of the lower member is formed. The upper member can be smoothly inserted into the lower member even if only the through hole is formed in the lower end surface without forming a chamfered portion in the corner. Therefore, since the structure of the upper member can be simplified and the member can be smoothly inserted into the lower member, it is possible to prevent the displacement of the lead wire.

[Brief description of the drawings]

FIG. 1 is an exploded front view showing an embodiment of the present invention.

FIG. 2A is a front view of a lower member, and FIG. 2B is a right side view.

FIG. 3 is a plan view of a lower member.

FIG. 4A is a cross-sectional view of the lower member taken along the line 3A-A of FIG. 3, and FIG.
FIG. 2 is a sectional view taken along the line B-B in FIG.

FIG. 5A is a front view of an upper member, and FIG. 5B is a right side view.

6A is a plan view of an upper member, and FIG. 6B is a bottom view.

7A is a cross-sectional view taken along line CC of FIG. 6A, and FIG. 7B is a cross-sectional view taken along line DD of FIG. 5A.

8A is a front view of a terminal plate, FIG. 8B is a right side view,
(C) It is a top view.

FIG. 9 is a front view of a state where a cord is connected to a terminal plate.

FIG. 10 is a vertical sectional view showing a completed state of the embodiment.

FIG. 11 is an exploded partial cross-sectional front view showing a conventional technique.

FIG. 12 is a vertical sectional view of a lower member according to the related art.

13A is a front view showing a state in which a cord is connected to a terminal plate according to another embodiment of the present invention, FIG. 13B is a right side view, and FIG. 13C is a plan view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Decorative light bulb socket 2 Lower member 4 Upper member 6 Light bulb 7 Terminal plate 21 Non-cylindrical part 22 Cylindrical part 24 Terminal board arrangement part 25 Step part 26 Standing surface 27 Protrusion edge 41 Fitting part 43 Flange part 44 Square column part 45 Column part 47 through hole 48 apex 49 side surface 50 clamping rib 52 flange 53 horizontal surface 54 hanging surface 55 concave portion 61 lead wire 71 terminal body 72 conductor crimping portion 73 covered wire crimping portion

Claims (4)

[Claims] 1. A lower member comprising: a lower member; and an upper member which is fitted into the lower member. The lower member has a cylindrical shape, and has a pair of terminal plates opposed to each other on an inner peripheral portion thereof. The member has a fitting portion for fitting the lower member while a light bulb is supported at an upper end portion, and a pair of through holes are formed at a lower end surface of the fitting portion, and the member extends to the bulb. A pair of lead wires that have been folded back by projecting downward from the through hole,
Decoration in which lead wires located on both side surfaces of the fitting portion are located on both side surfaces corresponding to the fitting portion, and the lead wires located on both side surfaces of the fitting portion are brought into contact with the terminal plate as the upper member and the lower member are fitted. A decorative light bulb socket, wherein a pair of through holes formed in a lower end surface of the fitting portion have a polygonal shape having vertices in a direction toward both side surfaces of the fitting portion. 2. The decorative bulb socket according to claim 1, wherein said through-hole has a substantially triangular shape. 3. A lower member and an upper member fitted inside the lower member, wherein the lower member has a cylindrical shape, and a pair of terminal plates facing each other is disposed on an inner peripheral portion of the lower member. The member has a fitting portion for fitting the lower member while a light bulb is supported at an upper end portion, and a pair of through holes are formed at a lower end surface of the fitting portion, and the member extends to the bulb. A pair of lead wires that have been folded back by projecting downward from the through hole,
Decoration in which lead wires located on both side surfaces of the fitting portion are located on both side surfaces corresponding to the fitting portion, and the lead wires located on both side surfaces of the fitting portion are brought into contact with the terminal plate as the upper member and the lower member are fitted. A decorative light bulb socket, wherein the terminal plate is formed in a curved shape curved inward. 4. A lower member, and an upper member fitted inside the lower member, wherein the lower member has a cylindrical shape, and a pair of terminal plates facing each other is disposed on an inner peripheral portion of the lower member. The member has a fitting portion for fitting to the lower member while a light bulb is supported at an upper end portion, and a pair of through holes is formed at a lower end surface of the fitting portion, and the member extends to the light bulb. A pair of lead wires that have been folded back by projecting downward from the through hole,
Decoration in which lead wires located on both side surfaces of the fitting portion are located on both side surfaces corresponding to the fitting portion, and the lead wires located on both side surfaces of the fitting portion are brought into contact with the terminal plate as the upper member and the lower member are fitted. A socket for a decorative bulb, wherein a slanted guide portion having an upper end displaced outward is formed on the terminal plate.