JPH08124642A - Decorative electric lamp - Google Patents

Abstract

PURPOSE: To easily attach an electrode supporting body to a socket main body and prevent detachment after attachment by forming a plurality of projected strips, which are extended from one end side to the other end sidein the axial direction of a socket main body, in the outer face of a cylindrical part of an electric bulb supporting body. CONSTITUTION: A plurality of projected strips 30 extended from one side to the other side in an axial direction at the time when being attached to a socket main body 1 are formed at even distance mutually in the outer circumference of a cylindrical part 12 of an electric bulb supporting body 2 in which an electric bulb 3 is fitted. A prism part 13 at the tip of the electric bulb supporting body 2 is inserted in a square cylinder part 8 through a circular cylinder part 7 of a releasing part 4 of the socket main body 1. A column part 12 of the electric bulb supporting body 2 is fitted in the circular cylinder part 7 of the socket main body 1. At that time, only the projected strips 30 of the electric bulb supporting body 2 are brought into contact with the wall face of the circular cylindrical part 7 of the socket main body 1. The sliding resistance at the time of inserting the electric bulb supporting body in the socket main body 1 is lessened, so that both 2, 1 can be fitted each other smoothly.

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 lamp, a terminal plate and lead wires are assembled to a socket body. That is, a through hole penetrating in the axial direction of the socket body is formed, and a terminal plate to which a lead wire having a relatively large-diameter coated outer cover is connected is inserted into the through hole from the bottom side of the socket body, The pair of terminal plates are fixed in the terminal plate mounting grooves on the inner wall of the socket body.

[0003]

However, the subsequent work, namely, inserting the base end of the bulb support into which the bulb is fitted from the top side of the socket body into the socket body,
When the bulb support is fitted into the inner wall of the socket body to be mounted, the bulb support is smoothly attached to the socket body due to the large sliding contact resistance between the outer surface of the base end of the light bulb support and the inner wall of the socket. There was a problem that they could not be fitted. On the other hand, when used for a long period of time, the light bulb support may move or rotate in the circumferential direction with respect to the socket body, which loosens the fitting of the light bulb support to the socket body, and eventually the light bulb. The support sometimes separated from the socket body.

The present invention has been made in view of the above circumstances, and provides a decorative electric lamp which can easily mount the bulb support to the socket body, but does not easily come off after mounting. Is intended.

[0005]

An ornamental electric lamp according to claim 1 comprises a light bulb, a light bulb support into which the light bulb is fitted, and a socket body having an opening portion for mounting the light bulb support at one axial end. In the decorative electric lamp in which a pair of terminal plates for electrically connecting with the lead wire of the light bulb is assembled in the inner part of the opening part, the opening part is formed in a cylindrical part at one end side in the axial direction of the socket body, The light bulb support has a cylindrical portion that fits into the cylindrical portion, and the outer surface of the cylindrical portion is provided with a plurality of ridges extending from one axial end to the other axial end of the socket body. It is characterized by being.

[0006]

In the ornamental electric lamp according to claim 1, a plurality of ridges extending from one axial end to the other axial end of the socket body are provided on the outer surface of the cylindrical portion of the light bulb support. When the cylindrical portion of the light bulb support is fitted into the cylindrical portion of the socket body to be mounted, both surfaces of the cylindrical portion outer surface of the light bulb support and the cylindrical inner wall surface of the socket body are in surface contact with each other. Only the protrusions of the columnar portion come into contact with the inner wall surface of the cylindrical portion, so that the sliding contact resistance at the time of insertion is reduced. Therefore, when the bulb support is attached to the socket body, both can be fitted smoothly.

Further, the plurality of ridges provided on the outer surface of the cylindrical portion of the light bulb support are shaped to extend from one end side in the axial direction of the socket body to the other end side. Since the direction of insertion of the light bulb support with respect to the socket body is the same, the fitting of the two becomes smoother. On the other hand, since the protrusions having the above-mentioned shapes act to prevent the bulb body from moving and rotating in the circumferential direction with respect to the socket body, even if the bulb body is used for a long period of time, the fitting of the bulb body to the socket body becomes loose. And the bulb support is prevented from being detached from the socket body to the minimum. Furthermore, since the projection having the above shape grips the inner wall surface of the cylindrical portion of the socket body, the bulb support does not unexpectedly come out of the socket body during the distribution process or the use of the user.

[0008]

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 light bulb support, and reference numeral 3 is a light bulb. An electric lamp is configured.

As shown in FIG. 3, the socket body 1 has a release portion 4 at one axial end (upward direction in the figure) of a bottomed cylindrical body.
Is formed, and a through hole 5 that opens to the release portion 4 is formed at the other end (the same downward direction) in the coaxial direction. 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 substantially the same as the cross-sectional shape of the through hole 5. Inside the rectangular tube portion 8, the terminal plates 10, 1 connected to the tips of a pair of lead wires 9, 9 inserted into the inside from the outside of the through hole 5.
0 is fixed in each mounting groove.

On the outer peripheral surface of the socket body 1, a plurality of ridges (not shown) extending from one end side in the axial direction of the socket body 1 to the other end side are formed.
It is designed to be easy to grip when gripping by hand. Also,
The outer peripheral surface of the socket body 1 has a tapered tip shape having a slight taper degree from the point X on the one end side in the axial direction toward the other end side, while it extends from the point X toward the one end side. The taper surface 31 gradually decreases in diameter.

The light bulb support 2 has a diameter dimension slightly smaller than the outer diameter r of the tip of the socket body 1 on the one end side in the axial direction, and a lid that closes the release portion 4 when mounted on the socket body 1. A body portion 11, a cylindrical portion 12 that is formed continuously with the lid portion 11 and that is fitted into a cylindrical portion 7 of the release portion 4 of the socket body 1, and a tip of the cylindrical portion 12 (downward direction in the drawing). And a prism portion 13 which is formed so as to protrude into the square tube portion 8 and is inserted into the square tube portion 8. At the boundary between the lid portion 11 and the column portion 12, front and rear parallel side surfaces 13b, 13 of the prism portion 13 are formed.
b (see FIG. 1), a pair of notches 4 are provided at positions parallel to each other.
Nos. 0 and 40 are formed so that when the bulb support 2 is detached from the socket body 1, the nail is hooked so that the bulb support 2 can be easily pulled out. On the outer peripheral surface of the cylindrical portion 12, the socket body 1
Are provided at six positions at equal intervals extending from one end side in the axial direction to the other end side.

Further, as shown in FIG. 2, a concave portion 14 into which the base end portion of the light bulb 3 is inserted is bored in the inner surface of the cylindrical portion 12,
The bottom surface of the concave portion 14 has a through hole 1 which is opened at the tip end surface of the prismatic portion 13 and through which the pair of lead wires 15 of the light bulb 3 are inserted.
6 is perforated. At the tip of the through hole 16, the through hole 1
A partition wall 17 that divides the front end opening of 6 into two is provided. Further, the chamfered portion 1 is provided at each end of the tip end surface of the prismatic portion 13.
8 and 18 are formed, and each chamfered portion 18 and 18 is formed as shown in FIG.
And, as shown in FIG. 2, the guide grooves 18a for guiding the lead wires 15, 15 of the light bulb 3 which are inserted through the through holes 16 and protrude outward to the side surfaces 13a, 13a on the left and right parallel sides of the prism portion 13 by bending. 18a is formed, and the prism portion 13 is opened to the release portion 4
The lead wires 15, 15 are constrained in the guide grooves 18a, 18a when they are inserted therein.

The decorative light having the above structure is assembled as follows.

As shown in FIG. 3, in the socket body 1, a pair of terminal plates 10 and 10 and lead wires 9 and 9 are inserted from the through hole 5 into the inner part of the release portion 4 to connect the terminal plates 10 and 10. It is attached parallel to a predetermined position of the rectangular tube portion 8. Further, as shown in FIGS. 1 and 2, the concave portion 1 is provided with respect to the bulb support 2.
The light bulb 3 is mounted in the battery 4, and the lead wires 15 and 15 of the light bulb 3 are inserted into the through holes 16 to form the guide grooves 18 on the outer surface of the prismatic portion 13.
Bend along both left and right side surfaces 13a, 13a through a, 18a.

Next, the prism 13 at the tip of the light bulb support 2
Is inserted into the rectangular tube portion 8 through the cylindrical portion 7 of the release portion 4 of the socket body 1. Then, the cylindrical portion 12 of the bulb support 2 is fitted into the cylindrical portion 7 of the socket body 1. In this case, on the outer surface of the cylindrical portion 12 of the light bulb support 2, the ridges 30, 30 extending from the one axial end to the other axial end of the socket body 1.
Is provided, the cylindrical portion 12 of the light bulb support 2 is provided.
Both the outer surface and the inner wall surface of the cylindrical portion 7 of the socket body 1 do not come into surface contact with each other, and only the protrusions 30, 30 ... Of the cylindrical portion 12 contact the inner wall surface of the cylindrical portion 7. As a result, the sliding contact resistance when inserting the light bulb support 2 into the socket body 1 is reduced, and the two and the two can be fitted smoothly.

The plurality of ridges 30, 30 provided on the outer surface of the cylindrical portion 12 of the light bulb support 2 are shaped so as to extend from one axial end of the socket body 1 to the other axial end thereof. , The shape of these ribs 30, 30 ...
Since it matches the insertion direction of the bulb support 2 with respect to
As a result, the fittings 2 and 1 of the two become smoother.
On the other hand, since the projections 30, 30 ... Of these shapes act to prevent the movement and rotation of the light bulb support 2 in the circumferential direction with respect to the socket body 1, even when used for a long time, the light bulb for the socket body 1 The fitting of the support body 2 does not loosen, and the bulb support body 2 is prevented from coming off the socket body 1 to a minimum. Furthermore, the protrusions 30 having the above-mentioned shape,
Since 30 grips the inner wall surface of the cylindrical portion 7 of the socket body 1, the light bulb support 2 does not unexpectedly come out of the socket body 1 during the distribution process or the use of the user.

[0018]

According to the decorative lamp of the first aspect of the present invention, it is provided with a light bulb, a light bulb support into which the light bulb is fitted, and a socket body having an opening portion for mounting the light bulb support at one axial end. In a decorative electric lamp in which a pair of terminal plates for electrically connecting to the lead wire of the light bulb is assembled in the back of the opening portion, the opening portion is formed in a cylindrical portion at one axial end side of the socket body, The support has a cylindrical portion that fits into the cylindrical portion, and the outer surface of the cylindrical portion is provided with a plurality of ridges extending from one end side in the axial direction of the socket body to the other end side. When the cylindrical portion of the light bulb support is fitted into the cylindrical portion of the socket body to be mounted, both surfaces of the cylindrical portion outer surface of the light bulb support and the cylindrical inner wall surface of the socket body are in surface contact with each other. Only the ridge of the columnar part is Contacts the tubular portion inner wall surface, thereby,
The sliding contact resistance at the time of insertion is reduced, and therefore, when the light bulb support is mounted on the socket body, the two can be smoothly fitted together.

The plurality of ridges provided on the outer surface of the columnar portion of the light bulb support are formed so as to extend from one end side to the other end side in the axial direction of the socket body. Since it is aligned with the insertion direction of the light bulb support with respect to the socket body, it is possible to obtain an effect that the two can be fitted more smoothly. Furthermore, since the ridges having the above-described shapes act to prevent the movement and rotation of the light bulb support in the circumferential direction with respect to the socket body, the light bulb support does not fit into the socket body even when used for a long period of time. It is possible to obtain an effect that the bulb support can be prevented from coming off from the socket body to the minimum without being loosened. Furthermore, since the projection having the above shape grips the inner wall surface of the cylindrical portion of the socket main body, the effect that the bulb support does not unexpectedly come out of the socket main body during the distribution process or the use of the user can be obtained.

[Brief description of drawings]

FIG. 1 is an enlarged perspective view of an essential part of a light bulb support that constitutes an embodiment of a decorative electric lamp of the present invention.

FIG. 2 is a vertical sectional view showing the same light bulb support.

FIG. 3 is an exploded vertical sectional view showing the same embodiment.

FIG. 4 is an assembled vertical sectional view showing the embodiment.

[Explanation of symbols]

 1 Socket Main Body 2 Light Bulb Support 3 Light Bulb 4 Opening Part 7 Cylindrical Part 10 Terminal Plate 12 Cylindrical Part 15 Lead Wire 30 Protrusion

Claims (1)

[Claims] 1. A socket body (1) having a light bulb (3), a light bulb support (2) into which the light bulb (3) is fitted, and a release part (4) for mounting the light bulb support (2) at one axial end. 1), and a pair of terminal plates (1) for electrically connecting to the lead wires (15, 15) of the light bulb (3) in the inner part of the release part (4).
0, 10) is attached to the ornamental electric lamp, wherein the opening part (4) is formed in a cylindrical part (7) at one axial end of the socket body (1), and the light bulb support (2) is the cylindrical part. (7) has a cylindrical portion (12) fitted to the outer surface of the cylindrical portion (12), the socket body (1)
Of a plurality of protrusions (3
0, 30 ...) is provided.