JP2542642Y2 - Lamp socket - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp socket applied to an annular fluorescent lamp and the like.

[0002]

2. Description of the Related Art Conventionally, a lamp socket 50 applied to a ring-shaped fluorescent lamp as shown in FIGS. 7 to 9 is an auxiliary for pressing the ring-shaped lamp 51 in a direction of inserting a lamp pin of the ring-shaped lamp 51 into an insertion hole. A spring is provided. In order to mount the auxiliary spring, a projection 53 and a hook 54 are provided on a side surface of the lamp socket 50 in a direction perpendicular to the tube axis direction.
A projection 53 is provided at the base end of the auxiliary spring 52 which is an arc-shaped strip.
55 to be hooked on the hook and hole 56 to be hooked on the hook 54
And form. The base end of the auxiliary spring 52 is aligned with the side surface of the lamp socket 50, and
4 is hooked, and the claw 55 is locked to the projection 53 and fixed. On the other hand, when the annular lamp 51 is inserted, the auxiliary spring 52 is bent as shown by the arrow in FIG. 8 to fix the annular lamp 51 to the lamp socket 50. 57 is an instrument body, 58 is a reflection plate, 59 is a switch string, 60 is a shade, 61 is a lamp support spring, and 62 is a pressing piece of the auxiliary spring 52.

[0003]

However, since the force applied to the auxiliary spring 52 when attaching and detaching the ring-shaped lamp 51 is the same as the direction in which the auxiliary spring 52 is released, the claw portion 55 is not provided. However, there is a disadvantage that the auxiliary spring 52 easily comes off. In addition, when the base end of the auxiliary spring 52 is mounted, the auxiliary spring 52 is in the elastic direction, and the auxiliary spring 52 needs to be pushed in the longitudinal direction.

Further, since the projections 53 and the claws 54 are exposed on the surface of the lamp socket 50, the design is unsightly and poor in design. Also, a claw 54 at the center of the auxiliary spring 52
The width of the auxiliary spring 52 needs to be wide in order to prevent the spring from coming off. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a lamp socket in which the auxiliary spring is easy to attach and hardly comes off when the ring-shaped lamp is attached and detached, and has a good external appearance and does not require a wide auxiliary spring.

[0005]

The lamp socket of the present invention comprises a socket body having a receiving portion formed with an insertion hole for inserting a lamp pin of an annular lamp, and the annular lamp in a direction in which the lamp pin is inserted into the insertion hole. An auxiliary spring of an arc-shaped band plate that presses the auxiliary spring, a retaining claw is formed at one end of the auxiliary spring in a width direction of the auxiliary spring, and a direction in which the retaining claw of the proximal end is oriented. The socket body is formed with an insertion recess for inserting the opposite side portion in the tube axis direction of the ring-shaped lamp, and a locking portion is formed in the insertion recess in which the locking claw is locked. It is characterized by having done.

[0006]

According to the structure of the present invention, the side of the base end of the auxiliary spring opposite to the direction of the retaining claw is inserted into the insertion concave portion on one side in the tube axis direction of the socket body, and the retaining is prevented. The pawl is fixed by the retaining portion locking the retaining portion. The ring-shaped lamp is inserted into and removed from the receiving portion by elastically deforming the auxiliary spring in the plate thickness direction. Therefore, the mounting direction of the auxiliary spring and the bending direction of the auxiliary spring due to the attachment / detachment of the ring-shaped lamp are perpendicular to each other. Since no force is applied in the direction, the auxiliary spring is reliably prevented from coming off. In addition, since the auxiliary spring can be attached by inserting the base end portion in the width direction into the insertion concave portion, the assembling property is better than in the conventional example, and the insertion equipment is simplified. Further, since the conventional projections and hooks do not appear on the surface of the socket body, the design is excellent and the appearance is good. Further, since the retaining claws of the auxiliary spring are oriented in the width direction, it is not necessary to increase the width of the auxiliary spring.

[0007]

One embodiment of the present invention will be described with reference to FIGS. That is, this lamp socket has the auxiliary spring 1 and the socket body 2. The auxiliary spring 1
An arc-shaped strip for pressing the ring-shaped lamp 3 in a direction in which a lamp pin (not shown) of the ring-shaped lamp 3 is inserted and having a retaining claw 5 at one end in the width direction at a base end thereof. The auxiliary spring 1 of the embodiment is bent in a substantially semicircular arc shape and has a slit 12 formed along the center thereof, the distal end portion 10 is folded outward, and the proximal end portion 4 is interposed through the step portion 11. It is curved in a substantially arc shape.

The socket body 2 has a receiving portion 7 in which an insertion hole 6 for inserting the lamp pin of the annular lamp 3 is formed, and a side of the base end portion 4 of the auxiliary spring 1 opposite to the direction in which the retaining claw 5 is oriented. An insertion recess 8 for inserting the portion 13 in the tube axis direction from one side surface 14 in the tube axis direction of the ring-shaped lamp 3 is formed. Have in. The socket body 2 of the embodiment has a large-diameter annular lamp 19 (3) and a small-diameter annular lamp 20 (3).
And a pair of receiving portions 7 for connecting the auxiliary springs 1 to each other. The socket body 2 is connected to the socket body 15 as shown in FIG.
And a socket cover 16 covering both sides of the socket body 15, and an arc-shaped insertion concave portion 8 and a locking portion 9 are formed at an edge of the socket cover 16. Further, a projection 17 for pressing the retaining claw 5 is formed on the socket body 15 in the insertion recess 8, and a communication portion 27 is formed on the receiving portion 7 side corresponding to the step portion 11. Therefore, when the base end portion 4 of the auxiliary spring 1 is inserted into the insertion concave portion 8, the retaining claw 5
Is elastically deformed so as to get over the locking portion 9, and after being inserted, the retaining claw 5 is restored and locked to the locking portion 9 to be fixed.
Further, since the step portion 11 passes through the communication portion 27, the auxiliary spring 1
Can be prevented from coming off in the longitudinal direction. Furthermore, retaining nail 9
Is pushed by the projection 17 after insertion, and the base end 4 and the insertion recess 8 are curved in an arc shape, so that the auxiliary spring 1 is easily adhered and the rattle is hard to rattle.

The socket contacts with which the lamp pins come into contact and the lead wires passed inside are not shown.
Reference numeral 18 denotes a connection portion that is attached to the appliance body 21 and is electrically connected to a lighting component (not shown).
23 is a lamp support spring, 24 is a shade, 25 is a switch cord, and 26 is a suspension cord.

According to this embodiment, the side of the base end 4 of the auxiliary spring 1 opposite to the direction of the retaining claw 5 is inserted into the insertion recess 8 on one side of the socket body 2 in the tube axis direction. The insertion and retaining claw 5 is fixed to the retaining portion 9 by retaining locking. The annular lamp 3 is inserted into and removed from the receiving portion 7 by elastically deforming the auxiliary spring 1 in the thickness direction thereof. Therefore, since the direction in which the auxiliary spring 1 is attached and the direction in which the auxiliary spring 1 bends when attaching and detaching the ring-shaped lamp 3 are perpendicular, the retaining claw 5 is not affected by the bending of the auxiliary spring 1 when attaching and detaching the ring-shaped lamp 3. Since no force is applied in the direction in which the retaining claw 5 comes off, the auxiliary spring 1 is securely retained. Further, since the auxiliary spring 1 is attached by inserting the base end portion 4 thereof into the insertion concave portion 8 in the width direction thereof, the assembling property is better and the insertion equipment is simplified as compared with the conventional example. Further, since the conventional projections and hooks do not appear on the surface of the socket body 2, the design is excellent and the appearance is good. Further, since the retaining claw 5 of the auxiliary spring 1 is oriented in the width direction, it is not necessary to increase the width of the auxiliary spring 1.

Further, since the base end portion 4 and the insertion concave portion 8 have an arc shape, the mutual contact is good, the backlash of the auxiliary spring 1 can be prevented, and the retaining claw 5 is pressed by the projection portion 17. The play of the auxiliary spring 1 can be reliably prevented, so that the mounting of the annular lamp 3 is easy.
Although the step 11 is formed in the base end 4 to prevent the auxiliary spring 1 from coming off in the longitudinal direction, a locking portion that locks to the side edge of the retaining claw 5 without the step 11 is provided. 9 may be formed in the insertion recess 8 to prevent the auxiliary spring 1 from coming off in the longitudinal direction.

[0012]

In the lamp socket of the present invention, since the mounting direction of the auxiliary spring and the bending direction of the auxiliary spring due to the attachment / detachment of the ring lamp are perpendicular to each other, the retaining claw is affected by the bending of the auxiliary spring when the ring lamp is attached / detached. No auxiliary force is applied in the direction in which the retaining claws come off, so that the auxiliary spring is securely retained. In addition, since the auxiliary spring can be attached by inserting the base end portion in the width direction into the insertion concave portion, the assembling property is better than in the conventional example, and the insertion equipment is simplified. Further, since the conventional projections and hooks do not appear on the surface of the socket body, the design is excellent and the appearance is good. Further, since the retaining claws of the auxiliary spring are oriented in the width direction, there is an effect that it is not necessary to increase the width of the auxiliary spring.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an embodiment of the present invention.

FIG. 2 is a side view of the lamp socket.

FIG. 3 is a side view of an auxiliary spring.

FIG. 4 is a front view thereof.

FIG. 5 is a partial sectional view showing an insertion concave portion of the lamp socket.

FIG. 6 is a partial sectional view showing a state where an auxiliary spring is inserted.

FIG. 7 is a sectional view of a lighting apparatus to which the embodiment is applied.

FIG. 8 is an explanatory view of a conventional auxiliary spring.

FIG. 9 is a perspective view before attaching an auxiliary spring.

FIG. 10 is a cross-sectional view of a lighting apparatus to which a conventional example is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Auxiliary spring 2 Socket main body 3 Ring lamp 4 Base end 5 Retaining claw 6 Insertion hole 7 Receiving part 8 Insertion concave part 9 Locking part

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Katsunobu Fujimoto, the inventor 1 Asahi National Lighting Co., Ltd., Asahi National Lighting Co., Ltd., Higashi-Osaka City, Osaka (56) References Japanese Utility Model Sho-63-22086 (JP, U) Japanese Utility Model Hei 2- 20292 (JP, U) Hikaru 2-39486 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A socket body having a receiving portion formed with an insertion hole for inserting a lamp pin of an annular lamp, and an auxiliary spring of an arc-shaped strip for pressing the annular lamp in a direction in which the lamp pin is inserted into the insertion hole. A retaining claw is formed on the base end of the auxiliary spring toward one side in the width direction, and a side of the base end opposite to the direction of the direction of the locking claw is formed of the annular lamp. A lamp socket, wherein an insertion recess for insertion in the tube axis direction is formed in the socket main body, and a locking portion for stopping and locking the retaining claw is formed in the insertion recess.