JPH04259748A - Ornamental electric lamp - Google Patents

Abstract

PURPOSE:To easily integrate a socket body into a support part without causing a contact failure between the lead wire of a globe and a terminal plate. CONSTITUTION:A support part 2 for supporting a globe is formed into a cylindrical part 12 mounted on the released part 7 of a socket body 1 and a prismatic part 12. The outer surface of the cylindrical part has a top tapered form having a slight taper angle, and two parallel sides of the prismatic part have a top tapered form with a taper angle slightly larger than that in the outer surface of the cylindrical part, and chamfered parts 18 with a taper angle larger than that in the two parallel sides of the prismatic part are formed on the top end surfaces of the two parallel sides of the prismatic part.

Description

[Detailed description of the invention]

0001

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

0002

2. Description of the Related Art Generally, this type of decorative electric lamp has a structure in which a terminal plate and a cord wire are assembled to the socket body, and a support portion for supporting the light bulb is assembled to the socket body. For example, a socket body is formed with a through-hole that penetrates in the axial direction of the socket body, and a terminal plate is connected to the through-hole from the bottom side of the socket body to which a cord wire having a relatively large-diameter coated jacket is connected. Insert the pair of terminal boards into the terminal board mounting grooves on the inner wall of the socket.At the same time, attach the light bulb to the support part, expose the lead wire of the light bulb from the bottom of the support part, bend it to the side, and attach it to the bottom side of the support part. By assembling the light bulb into the top of the socket body, the lead wire of the light bulb is brought into contact with the terminal plate inside the socket body, thereby enabling electrical conduction between the two.

0003

[Problem to be Solved by the Invention] However, when attempting to assemble the bottom side of the support part into the socket body, the lead wire of the light bulb exposed from the bottom of the support part to the side is not restrained in any way, so this light bulb is There is a risk that the lead wire of the light bulb may become misaligned due to frictional resistance between the lead wire and the inner wall of the socket body, and due to this misalignment, the conductor part of the lead wire separates from the terminal board when the cap body is assembled, causing contact between the two. There was a risk of malfunction. This caused problems such as the trouble of re-assembling the socket body and the cap body.

The present invention has been made in view of the above-mentioned circumstances, and provides a decorative electric light in which a socket main body and a supporting portion can be easily assembled without causing poor contact between the lead wire of the light bulb and the terminal board. The purpose is to

[0005]

[Means for Solving the Problems] Accordingly, the present invention includes a light bulb, a support portion for supporting the light bulb, and a socket body having a release portion at one end in the axial direction to which the support portion is mounted, In the decorative electric lamp, a pair of terminal plates conductive to the lead wires of the light bulb are assembled at the back of the lamp, and the opening part forms a cylindrical part at one end in the axial direction of the socket body, and the supporting part forms a cylindrical part in the axial direction of the socket body. The structure has a cylindrical part that fits into the cylindrical part, and a prismatic part that protrudes from the cylindrical part coaxially with the cylindrical part, and the outer surface of the cylindrical part has a tapered tip with a slight degree of taper. The two sides have a tapered tip having a slightly larger degree of taper than the outer surface of the cylindrical part, and the tip surfaces of the two parallel sides of the prismatic part have a degree of taper larger than the two parallel sides of the prismatic part. A chamfered portion was formed.

[0006]Furthermore, in the present invention, a through hole is formed in the prismatic portion of the support portion through which the lead wire of the light bulb supported by the support portion protrudes from the tip surface, and chamfered portions are formed at both ends of the tip surface of the prismatic portion. A guide groove was formed in each chamfered portion to guide the lead wire of the light bulb protruding from the through hole by bending it to both parallel side surfaces of the prismatic portion.

Furthermore, in the present invention, a vertical plate-shaped partition is formed at the tip opening of the through hole of the support portion, dividing the tip opening into two.

[0008] In some cases, a cap surrounding the light bulb is removably attached to the support part.

[0009]

[Operation] According to the invention as claimed in claim 1, when the support part starts to be attached to the release part of the socket main body, the prismatic part at the tip of the support part penetrates deep into the release part through the cylindrical part of the release part, and the release part is released. The square column part is guided by the chamfered part of the tip surface and smoothly enters between a pair of parallel terminal plates installed at the back of the part,
The prismatic part that has penetrated deeply between the pair of terminal boards presses each terminal board from the inside toward the inner wall of the open part by the taper action of two parallel sides continuous from the chamfered part, and is exposed from the tip of the prismatic part and parallel to each other. The lead wires of the light bulb, which are bent to two sides, are brought into close contact with the inner surface of each terminal board. Further, the cylindrical portion of the support portion that enters the cylindrical portion following the prismatic portion fits into the cylindrical portion due to a slight taper action on the outer surface, thereby preventing the cylindrical portion from wobbling.

According to the second aspect of the invention, the lead wires of the light bulb are made to protrude from the tips of the prismatic portions of the support portion, and each lead wire is bent to both parallel sides through the guide groove of the chamfered portion. When the prismatic part of the support part is inserted into the open part of the socket body, each lead wire exposed from the tip of the prismatic part to both sides is restrained in the guide groove. Even when the lead wires come into contact with the inner wall of the socket body, they do not shift due to the frictional resistance between them, and by further inserting the square column part between the terminal plates, each lead wire on both sides is restrained in each guide groove. Make sure to contact the inner surface of each terminal board. Therefore, as long as the lead wire is restrained in the guide groove, it will always be in contact with the terminal board, and there is no risk of poor contact between the two.

According to the third aspect of the invention, when assembling the light bulb to the support part, the pair of lead wires of the light bulb are made parallel to each other to some extent, and the tips of each lead wire of the light bulb are inserted into the through holes of the support part. When the tip of each lead wire reaches the vicinity of the tip opening of the through hole, the tip of each lead wire is divided into two parts by the partition wall, and the tips of the lead wires are separated into two parts from the tip opening divided by the partition wall. stand out.

0012

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 to 4 show a first embodiment of the present invention, and in these figures, reference numeral 1 indicates a socket body;
Reference numeral 2 is a support part, reference numeral 3 is a light bulb, and these reference numerals 1 to 3 are a light bulb.
Reference numeral 3 constitutes the decorative electric lamp of the present invention.

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

The support part 2 is a member that supports the light bulb 3, and includes a cylindrical part 12 that is fitted into the cylindrical part 7 of the release part 4 of the socket body 1, and a cylindrical part 12 that protrudes from the tip of the cylindrical part 12. The prismatic section 13 is inserted into the section 8. Further, as shown in FIG. 2, a recess 14 is bored in the upper surface of the cylindrical portion 12 and extends toward the prismatic portion 13 and into which the base end of the light bulb 3 is inserted. A through hole 16 is formed at the tip end surface and through which a pair of lead wires 15 of the light bulb 3 are inserted. A partition wall 17 is provided at the tip of the through hole 16 to divide the opening at the tip of the through hole 16 into two. Further, chamfered portions 18 are formed at both ends of the tip surface of the prismatic portion 13, and each chamfered portion 18 has a light bulb 3 inserted through the through hole 16 and protruding outward, as shown in FIGS. 1 and 2. The lead wires 15, 15 of
Guide grooves 18a are formed to guide the wires by bending them toward the 3a and 13a sides, and each lead wire 15 is restrained within each guide groove 18a when the prismatic portion 13 is inserted into the release portion 4.

The outer surface of the cylindrical portion 12 has a tapered shape with a slight degree of taper toward the tip, and both parallel side surfaces 13a of the prismatic portion 13 (the side where the tip of the lead wire of the light bulb 3 is located) , 13a has a tapered tip having a slightly larger degree of taper than the outer surface of the cylindrical portion 12 as it goes toward the tip, and smooth insertion of the prismatic portion 13 into the release portion 4 and smooth insertion of the cylindrical portion 12 into the cylindrical portion 8. , furthermore, the lead wire 1 on the side surface 13a of the prismatic portion 13
5 and the inner surface of each terminal board 10 is made possible.

The decorative electric lamp having such a structure is assembled as follows. Through hole 16 for socket body 1
A pair of terminal plates 10 and lead wires 9 are inserted into the inner part of the open part 4, and each terminal plate 10 is attached to a predetermined position of the rectangular tube part 8 in parallel. Also, for the support part 2, a light bulb 3 is placed in the recess 14.
The lead wires of the light bulb 3 are inserted through the through holes 16 and protrude outside the prismatic portion 13.
(See FIG. 1, FIG. 3, and FIG. 4).

Next, the prismatic portion 13 at the tip of the support portion 2 is inserted into the prismatic tube portion 8 through the cylindrical portion 7 of the release portion 4 of the socket body 1. First, the chamfered part 18 of the square column part 13 is guided and smoothly enters between the terminal plates 10, 10 located parallel to each other in the square cylinder part 8, and both tapered side surfaces 13a, 13a continuing from each chamfered part 18 are formed. While contacting the inner surfaces of the terminal plates 10, 10 and pressing the terminal plates 10, 10 toward the inner wall side of the rectangular tube part 8, the square column part 13 penetrates deeply between the terminal plates 10, 10 (
(see Figure 2).

At this time, from the tip surface of the prismatic portion 13 to both side surfaces 13
Each lead wire 15 exposed along the chamfered portion 18
Since each lead wire 15 contacts the inner surface of each terminal board 10 while being restrained rearward by the guide groove 18a, each lead wire 15 does not shift from both sides 13a of the prismatic portion 13 and is stably connected to the inner surface of each terminal board 10. and make contact. Also, lead wire 1
The bent portions on both sides of 5, which conventionally received a large amount of frictional resistance between the inner wall of the rectangular tube portion 8 or the upper end of each terminal plate 10, are sunk into the guide groove 18a and protected by the chamfered portion 18. Since it is not subjected to frictional resistance and is not pressed, it can be smoothly inserted between the respective terminal plates 10, thereby making the contact with the inner surface of each terminal plate 10 stable and preventing the lead wires 15 from being damaged. The cylindrical portion 12 following the prismatic portion 13 smoothly enters into the cylindrical portion 7 and is deeply fitted into the cylindrical portion 7 due to the taper action of the outer surface of the cylindrical portion 12.

According to the decorative electric lamp of this embodiment, the prismatic portion 1
The tip of the lead wire 15 is passed through the guide groove 18 formed in the chamfered portion 13a of the tip end surface of the
Since the tip of the lead wire 15 can be always restrained to the side surface 13a of the prismatic portion 13, the prismatic portion 13 can be bent to the side surface 13a of the prismatic portion 13 while keeping the lead wire 15 in stable contact with the inner surface of each terminal plate 10. It can be inserted smoothly between the two. Therefore, in addition to the effect of smooth insertion of the square column part 13 and the columnar part 12 into the square tube part 8 and the cylinder part 7, the assembly of the socket body 1 and the support part 2 is facilitated, and the inner surface of the terminal plate 10 and Poor contact with the lead wire 15 can be eliminated.

FIG. 5 shows a second embodiment of the present invention.
A trumpet-shaped shade part 20 can be detachably attached to the support part 2 so as to surround the light bulb 3 supported by the support part 2. In this embodiment, the prismatic portion 1 of the support portion 2 is
A plurality of vertical ribs 21 are protruded near the upper end of the outer periphery of the support section 2, and an opening 20a is formed at the base end of the cap section 20 to attach the cap section 20 to the prismatic section 13 of the support section 2 in an externally fitted state. A protrusion 22 is formed at the edge of the opening 20a to undercut the vertical rib 21 and fix the cap 20 and the square column 13 together.

According to this embodiment, the light bulb 3 is connected to the support part 2.
Since the cap 20 surrounding the can be detachably attached, the decorative effect can be further enhanced.

[0023]

As described above in detail, according to the invention as set forth in claim 1, one end in the axial direction of the open part of the socket body to which the support part for supporting the light bulb is attached is formed into a cylindrical part,
The support portion has a cylindrical portion that fits into the cylindrical portion, and a prismatic portion that protrudes from the cylindrical portion coaxially with the cylindrical portion, and the outer surface of the cylindrical portion has a slightly tapered tip shape. The two parallel sides of the prismatic part have a tapered tip having a slightly larger degree of taper than the outer surface of the cylindrical part, and the tip surfaces of the two parallel sides of the prismatic part have two parallel sides of the prismatic part. Since the chamfered portion has a larger taper than the chamfered portion, the prismatic portion and the cylindrical portion of the support portion are smoothly inserted into the prismatic portion and the cylindrical portion of the release portion, respectively.
To facilitate assembly of the socket body and support part. Also,
A light bulb in which the two parallel sides of the square column are exposed on the two parallel sides of the square column by pressing each terminal board inside the square tube toward the inner wall of the open section when the square column is inserted into the tube. Ensure good contact between the lead wire and the terminal board. Furthermore, the taper effect of the outer surface of the cylindrical portion has the effect of preventing wobbling between the socket body and the support portion in an assembled state. According to the invention as set forth in claim 2, a through hole is formed in the prismatic portion of the support portion through which a lead wire of a light bulb supported by the support portion projects from the tip surface, and a through hole is formed at both ends of the tip surface of the prismatic portion. A chamfered portion is formed in each chamfered portion, and a guide groove is formed in each chamfered portion to guide the bulb lead wire protruding from the through hole by bending it to both parallel side surfaces of the prismatic portion, so that the lead wire is restrained in the guide groove. As a result, the prismatic part and the cylindrical part can be smoothly inserted into the prismatic cylindrical part and the cylindrical part of the release part, respectively, without causing any displacement of the lead wires from both sides of the prismatic part. This facilitates the assembly of the socket main body and the support part, stabilizes the contact between the lead wire of the light bulb and the inner surface of each terminal plate during assembly, and eliminates contact failures. Further, according to the third aspect of the invention, since a vertical plate-shaped partition is formed at the tip opening of the through hole of the support portion to divide the tip opening into two, the lead wire of the light bulb can be easily inserted into the through hole. Get,
After that, simply guide the lead wires through the through-hole, and the tip of each lead wire can easily protrude from the tip opening, which is divided into two by a vertical plate-shaped partition.
Therefore, it is possible to easily assemble the support part and the light bulb.

[Brief explanation of the drawing]

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

FIG. 2 is an assembly diagram of the decorative electric light.

FIG. 3 is a cross-sectional view of the support portion of the decorative electric light.

FIG. 4 is a perspective view of essential parts of the support section.

FIG. 5 is a sectional view showing a support part and a cap part of a decorative electric light according to a second embodiment of the present invention.

[Explanation of symbols]

1 Socket body 2 Support part 3 Light bulb 4 Liberation section 7 Cylindrical part 8 Square tube part 10 Terminal board 12 Cylindrical part 13　Prismatic part 13a Side 16 Through hole 16a Tip opening 17 Partition wall 18 Chamfered part 18a Guide groove.

Claims (4)

[Claims] 1. A socket body comprising a light bulb, a support portion for supporting the light bulb, and a release portion at one end in the axial direction to which the support portion is attached; In a decorative electric lamp in which a pair of electrically conductive terminal plates are assembled, the opening part has a cylindrical part at one end in the axial direction of the socket body, and the supporting part has a cylindrical part that fits into the cylindrical part, and the cylindrical part. has a prismatic part protruding coaxially with the cylindrical part, the outer surface of the cylindrical part has a tapered tip with a slight degree of taper, and two parallel sides of the prismatic part are smaller than the outer surface of the cylindrical part. The tip has a tapered shape with a slightly large degree of taper, and the parallel two portions of the prismatic portion
A decorative electric lamp characterized in that a chamfered portion having a greater degree of taper than two parallel sides of the prismatic portion is formed on the end face of the side. 2. A socket body comprising a light bulb, a support part for supporting the light bulb, and a release part to which the support part is attached at one end in the axial direction; In a decorative electric lamp in which a pair of electrically conductive terminal plates are assembled, the opening part has a cylindrical part at one end in the axial direction of the socket body, and the supporting part has a cylindrical part that fits into the cylindrical part, and the cylindrical part. a prismatic part protruding coaxially with the cylindrical part; a through hole is formed in the prismatic part through which a lead wire of a light bulb supported by the support part projects from the tip surface; Chamfered portions are formed at both ends of the prismatic portion, and guide grooves are formed in each chamfered portion to bend and guide the lead wire of the light bulb protruding from the through hole to both parallel side surfaces of the prismatic portion. Features decorative electric lights. 3. A socket body comprising a light bulb, a support portion for supporting the light bulb, and a release portion at one end in the axial direction to which the support portion is attached; In a decorative electric lamp in which a pair of electrically conductive terminal plates are assembled, a through hole is formed in the support part through which a lead wire of a light bulb supported by the support part projects from the tip, and an opening at the tip of the through hole is provided. A decorative electric lamp characterized in that a vertical plate-shaped partition wall is formed to divide the tip opening into two. 4. The decorative electric lamp according to claim 1, claim 2, or claim 3, wherein a shade part surrounding the light bulb supported by the support part is removably attached to the support part. Features decorative electric lights.