JPH08167459A - Contact piece structure for socket of fluorescent lamp - Google Patents

Abstract

PURPOSE: To surely maintain the holding force of a lamp pin by bringing a contact piece to receive a deforming force from the lamp pin into a double-side holding condition by means of an abutting member formed at the front end of the contact piece. CONSTITUTION: Two contact pieces 47 are installed in a socket main body 1 for fluorescent lamp. In the contact piece 47, a terminal 49 having an elastic piece 48 a lead wire 42 is connected is composed of a specific length of fixing side elastic piece 50 extended from the terminal 49; a contact piece 51 connected and disconnected elastically to the lamp pin of a fluorescent lamp which is turned back from the end of the elastic piece 50, and inserted in the main body 1; and an abutting part 52 formed at the tip on the extension of the contact piece 51, and abutting to the terminal 49. The terminal 49 has two lead wire inserting holes 53 provided in parallel each other, and one lead wire escape hole 54, and it is set to hold the lead wire by the edges 55 and 56 by opposing the front end edge 55 of the elastic piece 48 to the edge 56 of the hole 54. The lead wire is surely held by the edge 55 of the elastic piece 48 and the edge 56 of the hole 54.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contact piece structure for a fluorescent lamp socket holding a fluorescent lamp having a lamp pin, and more particularly to a pinch-type rotary fluorescent lamp socket. The present invention relates to a contact piece structure.

[0002]

2. Description of the Related Art Conventionally, in this kind of lamp socket, in order to securely hold the fluorescent lamp, the fluorescent lamp is moved in a direction orthogonal to the longitudinal direction to insert the lamp pin into the socket, and then the fluorescent lamp is It is attached by rotating around the longitudinal axis. For example, as shown in FIG. 15, a rotor 72 is rotatably attached to the socket body 71, and
An opening 75 for inserting a pair of lamp pins 74 of the fluorescent lamp 73 and a lamp pin insertion groove 76 are formed in the rotor 1 and the rotor 72. The opening 75 is expanded outward to facilitate the insertion of the lamp pin 74.

Further, inside the socket body 71,
A contact piece 77 that contacts and separates from the lamp pin 74 is housed. The contact piece 77 includes a terminal portion 78 to which a lead wire (not shown) is connected, a fixed elastic piece 79 fixed to the socket body 71, and an arc-shaped connecting piece portion 80 that contacts the lamp pin 74. Become. And the connecting piece 80
The curved portion 81 is formed between the fixed elastic piece 79 and the fixed elastic piece 79, but is formed in a cantilevered state. Further, the elastic piece 82 of the terminal portion 78 has its tip facing the flat plate portion 83 of the fixed side elastic piece 79.

Further, the rotor 72 is the socket body 7.
It must be installed so that it does not fall from 1,
Since it is formed so as to be elastically engaged and rotatably held by being pressed from the front side, its shape is complicated and it is formed with high manufacturing accuracy.

When the fluorescent lamp 73 is attached or detached, the lamp pin 74 is inserted into the lamp pin insertion groove 76 from the opening 75 and then the fluorescent lamp 73 is rotated about the axis. At this time, the connecting piece of the contact piece 77 is connected. The portion 80 is expanded by the lamp pin 74 and largely elastically deforms. Therefore, there is a problem that an excessive load is applied to the bending portion 81, a sag phenomenon occurs, and the holding force of the lamp pin 74 decreases.

Regarding the connection of the lead wire, the lead wire is held by the tip of the elastic piece 82 and the flat plate portion 83, but the corner portion can be used on the elastic piece 82 side, while the other is used. Since the flat plate portion 83 is slippery, it is difficult to reliably hold the lead wire.

Further, since the holding structure of the rotor 72 is complicated, and moreover, it has to be manufactured with high precision,
There is a problem that the manufacturing cost becomes high. Also, the workability of assembly is poor, and it is an issue to be improved.

Furthermore, since the connecting piece portion 80 of the contact piece 77 has an arc shape, there is no moderation when the fluorescent lamp 73 is rotated. Therefore, in the conventional structure, the rotor 72 provides the moderation, and there is a problem that the socket cannot be configured without using the rotor 72.

[0009]

When the fluorescent lamp 73 is attached or detached, the lamp pin 74 is inserted from the opening 75 into the lamp pin insertion groove 7.
6 is inserted, the fluorescent lamp 73 is rotated about the axis, and at this time, the connecting piece portion 80 of the contact piece 77 is expanded by the lamp pin 74 and largely elastically deformed. Therefore, there is a problem that an excessive load is applied to the bending portion 81, a sag phenomenon occurs, and the holding force of the lamp pin 74 decreases.

Regarding connection of the lead wire, the lead wire is held by the tip of the elastic piece 82 and the flat plate portion 83, but the corner portion can be used on the elastic piece 82 side, but the other side. Since the flat plate portion 83 is slippery, it is difficult to reliably hold the lead wire.

Further, since the holding structure of the rotor 72 is complicated and must be manufactured with high precision,
There is a problem that the manufacturing cost becomes high. Also, the workability of assembly is poor, and it is an issue to be improved.

Furthermore, since the connecting piece portion 80 of the contact piece 77 has an arc shape, there is no moderation when the fluorescent lamp 73 is rotated. Therefore, in the conventional structure, the rotor 72 provides the moderation, and there is a problem that the socket cannot be configured without using the rotor 72.

[0013]

According to the first aspect of the present invention,
A terminal portion including an elastic piece to which the lead wire is connected, a fixed-side elastic piece extending from the terminal portion and fixedly held in the socket body, and an end of the fixed-side elastic piece. And a connection piece portion that is elastically engaged with and disengaged from the lamp pin of the fluorescent lamp that is folded back from the portion and inserted into the socket body, and a contact piece that is formed at the tip of the extension of the connection piece portion and abuts on the terminal portion. It consists of contact parts.

According to a second aspect of the present invention, a lead wire insertion hole and a lead wire escape hole are formed in the terminal portion, and the leading edge portion of the elastic piece is opposed to the edge portion of the lead wire escape hole so that the edges of the lead wire escape hole are opposed to each other. The lead wire is provided so as to sandwich the lead wire, and the contact side between the leading edge portion of the elastic piece and the edge portion of the lead wire escape hole with the lead wire is the burr side at the time of punching.

According to a third aspect of the present invention, a terminal portion provided with an elastic piece to which a lead wire is connected and a fixed-side elastic member extending from the terminal portion and fixedly held in the socket body are provided. A contact piece integrally formed with a piece and a connecting piece that is elastically engaged with and disengaged from the lamp pin of the fluorescent lamp that is folded back from the end of the fixed elastic piece and inserted into the socket body. A groove having a constant width is formed on the entire circumference of a rotor mounted inside the main body, and a pair of the contact pieces are fitted in the groove of the rotor to attach the rotor and the contact piece to the socket body. Is.

According to a fourth aspect of the present invention, a terminal portion provided with an elastic piece to which a lead wire is connected and a fixed-side elastic member extending from the terminal portion and fixedly held in the socket body are provided. A contact piece is integrally formed of a piece and a connection piece part that is folded back from the end of the fixed elastic piece and elastically engages and disengages with the lamp pin of the fluorescent lamp inserted into the socket body. A recessed lamp pin engaging portion into which the lamp pin falls is formed in the connecting piece portion.

[0017]

According to the invention described in claim 1, since the connecting piece portion which receives the deforming force by the lamp pin is in a both-supporting state by the contact portion formed at the tip thereof, the connecting piece portion receives the large deforming force from the lamp pin. Therefore, the holding force of the lamp pin can be reliably maintained.

According to the second aspect of the present invention, since the portion holding the lead wire is the tip edge portion of the elastic piece and the edge portion of the lead wire escape portion, the holding force of the lead wire is high, and particularly, the respective edges are held. Since the contact side of the portion with the lead wire is the burr side at the time of punching, the lead wire is strongly bited and can securely hold the lead wire.

According to the third aspect of the present invention, the rotor is prevented from coming off simply by incorporating the rotor and the contact piece together into the socket body, which simplifies the rotor mounting structure and reduces the number of parts. Is good.

According to the fourth aspect of the present invention, since the lamp pin engaging portion in the shape of a recess into which the lamp pin falls is formed in the connecting piece portion with which the lamp pin of the contact piece comes into contact, the lamp pin is held securely without using the rotor. It is possible to provide a product that requires a rotor and a product that does not require a rotor as common parts.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. First, the socket body 1 is formed of a thermoplastic resin. This socket main body 1 has a front surface 2 that serves as a lamp mounting surface, a rear surface 4 that serves as a mounting surface for the fixture main body 3, and a side surface portion 5 that surrounds the periphery, and an opening 6 is provided on one side.
Is formed into a hollow shape. The side surface portion 5 on the opposite side of the opening portion 6 is an arc portion 7. A large-diameter circular hole 8 is formed substantially in the center of the front portion 2, and a small-diameter square hole 9 is also formed at a position close to the opening 6. Further, a bridge portion 11 that has a fitting groove 10 and connects the front portion 2 and the rear portion 4 near the opening 6 is formed. The square hole 9 is located within the width of the fitting groove 10 of the bridge portion 11, and a square fitting protrusion 12 is formed between the bridge portions 11 on the rear surface 4 side. ing. Further, on the inner surface of the back surface portion 4, a pair of elastic legs 1 located at the center of the circular hole 8 and facing each other.
3 is integrally formed to project. These elastic legs 13
End portions of the front surface portion 2 coincide with the outer surface of the front surface portion 2, and engaging tongue pieces 14 are formed at the end portions by bending at right angles.
A semi-circular engagement recess 15 is formed in the center of each of the engagement tongues 14. Then, a locking rib 1 for positioning a contact piece, which will be described later, is provided at the center of the inner surface of the side surface portion 5.
6 is formed to project. Further, a lamp pin insertion groove 19 into which the lamp pin 18 of the fluorescent lamp 17 is inserted is formed in the central portion of the arc portion 7 extending from the front surface portion 2, the rear surface portion 4, and the side surface portion 5. A pair of drop-out preventing projections 20 are formed in the lamp pin insertion groove 19 so as to project in a V shape so that the distances between the respective tips are smaller than the outer diameter of the lamp pin 18. These drop-out preventing projections 20 are formed by two cut grooves 21 parallel to the side surface portion 5.
Is formed integrally with the side surface portion 5. The drop-out preventing projection 20 is formed so as to project inward from a thin hinge portion 22 formed on the outer peripheral surface side of the side surface portion 5 and elastically deform.

On the other hand, the instrument body 3 is formed with a rectangular locking hole 23 and elongated hole-shaped positioning holes 24 located on both sides of the locking hole 23. Then, on the outer surface of the back surface portion 4 of the socket body 1, two positioning legs 25 that fit into the positioning holes 24 are integrally formed. The locking holes 23 are provided between the positioning legs 25.
A pair of elastic holding projections 28 having locking claws 27 that are inserted into the locking holes 23 and engage with the edges 26 of the locking holes 23 are formed. An inclined surface 29 that interferes with the edge portion 26 of the locking hole 23 is formed at the tip of each of the holding projections 28. Further, a locking projection piece 30 is integrally formed from the base of the locking claw 27 of the holding projection 28 so as to project obliquely toward the outer surface of the back surface 4. These locking projections 3
A space corresponding to the plate thickness of the instrument body 3 is formed between the front end portion 31 of 0 and the outer surface of the back surface portion 4. The reference numeral 30a is a leaf spring used when the socket body 1 is attached.

Further, the back surface portion 4 of the socket body 1
A guide rib 32 having an arc portion that matches the arc of the circular hole 8 is formed on the inner surface of the. A circular flange 33 is fitted to the guide rib 32 and the inner peripheral surface of the circular hole 8, and a rotor 34 is rotatably attached. The rotor 34 has a drum portion 35 between the circular flanges 33, and a groove 36 is formed by the drum portion 35 and the circular flange 33. An insertion portion 37 for inserting the lamp pin 18 is formed between the drum portion 35 and the circular flange 33 on the front side, and the circular flange 33 portion has an outer diameter of the lamp pin 18 formed by the insertion portion 37. The lamp pin holding portion 38 is formed in accordance with the above. Further, a circular guide hole 39 with which the engaging tongue piece 14 abuts is formed in the center of the circular flange 33 on the front side, and the circular guide hole 39 has a positioning protrusion that engages with and disengages from the engaging concave portion 15. Four
0 is formed so as to project.

Further, a lid 41 for closing the opening 6 of the socket body 1 is provided. This lid 41
On both sides, a pair of lead wire insertion holes 43, into which two lead wires 42 can be inserted by combining a circular portion and a long hole portion, are formed. A projecting portion 44 that fits into the fitting groove 10 of the bridge portion 11 is formed, and a retaining protrusion 45 that fits into the square hole 9 and is retained is formed on the front side of the projecting portion 44. There is. A fitting groove 46 that fits into the fitting protrusion 12 is formed on the back side of the lid 41.

In the socket body 1 thus formed, two contact pieces 47 having the same shape and paired with each other are attached. These contact pieces 47 are formed of a plate material made of a conductive material, and the overall width dimension is set so as to fit in the groove 36 of the rotor 34.
The contact pieces 47 include a terminal portion 49 having an elastic piece 48 to which the lead wire 42 is connected, and the terminal portion 49.
A fixed length elastic piece 50 extending from the fixed side elastic piece 50 and fixedly held in the socket body 1, and folded back from the end of the fixed side elastic piece 50 and inserted into the socket body 1. The fluorescent lamp 17 includes a connecting piece portion 51 that is elastically engaged with and disengaged from the lamp pin 18, and an abutting portion 52 that is formed at an extended tip of the connecting piece portion 51 and abuts on the terminal portion 49. The terminal portion 49 includes two lead wire insertion holes 53 and one lead wire escape hole 54 which are arranged in parallel with each other, and the distal end edge portion 55 of the elastic piece 48 is connected to the edge portion 56 of the lead wire escape hole 54. The edges 55, 56 of each other facing each other.
Is provided so as to sandwich the lead wire 42, and the contact side of the tip end edge portion 55 of the elastic piece 48 and the edge portion 56 of the lead wire escape hole 54 with the lead wire 42 is punched at the burr side. I am trying. The pillar portion 54a around the lead wire escape hole 54 has an angle of about 45 ° so as to incline outward from the outer edge toward the center. This is to ensure that the tip of the lead wire 42 is inserted into the lead wire escape hole 54 even if the lead wire 42 is pushed in at an angle when the lead wire 42 is inserted. The lead wire 42 is securely held by the tip edge portion 55 of the lead wire 48 and the edge portion 56 of the lead wire escape hole 54. Further, a concave lamp pin engaging portion 57 into which the lamp pin 18 falls is formed in an intermediate portion of the connecting piece portion 51. Further, a positioning curved portion 58 that is bent in a U shape and that engages with the rib 16 formed on the inner surface of the side surface portion 5 is formed in an intermediate portion of the fixed side elastic piece 50. Since the two lead wires 42 are connected to each other by one contact piece 47, the same terminal portion 49 is provided at an intermediate position so that the deformation of the elastic pieces 48 does not affect each other. The slit 59 is formed. Therefore, substantially two elastic pieces 48 are present, but the lead wire 42 is provided at one elastic piece 48 portion.
Even if is inserted, there is no effect on the other elastic piece 48 portion, and the lead wire 42 is connected independently and surely.

In order to complete one assembled socket in such a structure, the socket body 1, the rotor 34, the lid 41 and the two contact pieces 47 are prepared and assembled. First, the rotor 34 of the socket body 1
Is inserted, and the circular flange 33 is rotatably fitted into the guide rib 32 and the circular hole 8. Then, the contact pieces 47 are respectively inserted from the openings 6 of the socket body 1.
At this time, the position is determined by bringing the positioning curved portion 58 of the contact piece 47 into contact with the rib 16, but the connection piece portion 51 of the contact piece 47 fits into the groove 36 of the rotor 34,
The rotor 34 is retained. After the rotor 34 and the contact piece 47 are attached in this way, the lid 41
The opening 6 is closed with. That is, the lid 41 is attached to the opening 6
The protrusion 44 is fitted in the fitting groove 10, the fitting projection 12 is fitted in the fitting groove 46, the lid 41 is aligned, and the retaining projection 45 is attached. The lid 41 is fixed to the socket body 1 by fitting it into the square hole 9. When the lid body 41 is fixed in this manner, the lid body 41 presses the terminal portions 49 of the contact pieces 47 to contact the contact pieces 47.
Do not slip out. Therefore, all the parts are not disassembled unless the lid 41 is removed. If it is necessary to disassemble for some reason, the lid 4
Although the operation is performed by removing 1, the operation is relatively easy.

The socket body 1 assembled in this way
Is attached to the instrument body 3, but it is necessary to apply a pressing force for axially pressing the fluorescent lamp 17 by the socket body 1 in order to securely hold the fluorescent lamp 17. To do so, fix one socket body 1 to the instrument body 3,
The other socket body 1 is elastically attached. First, the fixed-side socket body 1 is attached as shown in FIG. That is, the pair of positioning legs 25 are inserted into the positioning holes 24 of the instrument body 3 and pushed in as they are. As a result, the inclined surface 29 of the holding projection 28 is fixed to the edge portion 26 of the locking hole 23.
Since the holding projection 28 is hit against the center,
Get over the edge 26 of 3. Then, the locking projection 30 also flexes toward the center side at the edge 26 of the locking hole 23 and rides over the edge 26, so that the tip 31 of the locking projection 30 comes into contact with the other surface of the instrument body 3 by its own elastic force. And restore it with
The socket body 1 is fixed to the instrument body 3.

Next, with respect to the movable socket main body 1, the socket main body 1 is attached to the instrument main body 3 in the same manner as described above with the leaf spring 30a interposed. At this time, as shown in FIG. 9, the socket body 1 is pushed in only until the locking claw 27 of the holding projection 28 has passed over the edge portion 26 of the locking hole 23. In this state, since the socket body 1 receives the force of the leaf spring 30a, the locking claw 27 is locked to the instrument body 3 and the socket body 1 is elastically held.

As a result of the mounting of the fixed side and the movable side of the socket body 1 in this way, the socket body 1 has a completely common shape and can be used for both the fixed side and the movable side. There is no need to increase the types of.

After the socket body 1 is mounted in this manner, the fluorescent lamp 17 is mounted. Generally, the distance between the facing surfaces of the socket body 1 facing each other is shorter than the entire length of the fluorescent lamp 17. Has been done. Therefore, when mounting the fluorescent lamp 17, the lamp pin 18 is inserted into the movable socket body 1 and then the socket body 1 is axially pressed to move axially against the force of the leaf spring 30a. Then, the other lamp pin 18 is inserted into the fixed socket body 1. At this time, the lamp pin 18 is inserted from the lamp pin insertion groove 19, but at the time of insertion, the lamp pin 18 comes into contact with the drop-out preventing projections 20 and bends the drop-out preventing projections 20. Two lamp pins 18
When reaches the lamp pin holding portion 38 of the rotor 34, the fluorescent lamp 17 is rotated 90 ° about the axis. As a result, the rotor 34 rotates together with the lamp pin 18, and in the process, the lamp pin 18 contacts the connecting piece 5 of the contact piece 47.
1 and slides while deforming the connecting piece portion 51 and fits into the lamp pin engaging portion 57. In addition, the fluorescent lamp 17
When removing, the reverse operation is performed. During this kind of removal or installation,
When the lamp pin 18 is in the state along the lamp pin insertion groove 19, even if the user releases his or her hand from the fluorescent lamp 17, the lamp pin 18 comes into contact with the drop-out preventing projection 20 and the fluorescent lamp 1
The fluorescent lamp 17 will not fall off under a load of about 7 of its own weight. Conversely, since the fluorescent lamp 17 is temporarily held, the danger of its fall is avoided and the safety is enhanced.

The fluorescent lamp 17 is mounted in this manner, and in the process, the connecting piece portion 51 of the contact piece 47 is pushed by the lamp pin 18 and is greatly deformed. The deformation is performed by the bending of the connecting piece portion 51, the bending of the curved portion serving as the connecting portion with the fixed-side elastic piece 50, and the like.
Since the abutting portion 52 that abuts the terminal portion 49 is present at the tip of the contact portion 47, the abutting portion 52 is deformed in the both-supported state, so that the contact piece 47 is not permanently deformed and the necessary pressing force against the lamp pin 18 is maintained. To do. Therefore, sufficient contact pressure necessary for electrical conduction can be obtained for a long period of time.

Next, after the socket body 1 is attached, the lead wire 42 is connected. The connection of the lead wire 42 is performed by pushing the exposed charging portion with the coating removed from the lead wire insertion hole 43. That is, when the lead wire 42 is pushed in, the tip end of the lead wire 42 enters between the surface of the fixed side elastic piece 50 of the contact piece 47 and the elastic piece 48 while bending the elastic piece 48, and the lead wire escape hole 54.
Get in. Therefore, the lead wire 42 is sandwiched between the tip edge portion 55 of the elastic piece 48 and the edge portion 56 of the lead wire escape hole 54. Since the lead wire 42 side of the tip edge portion 55 of the elastic piece 48 and the edge portion 56 of the lead wire escape hole 54 is the burr side at the time of punching, it is strongly bitten into the lead wire 42. Even if the lead wire 42 is pulled, it does not come out. That is, as a result of being mechanically firmly fixed, the electrical connection is stable.

Next, a modification of the above embodiment of the present invention will be described with reference to FIG. That is, in this modified example, the rotor 34 used in the above-described embodiment is omitted. The rotor 34 in the above-mentioned embodiment covers the contact piece 47 (charging part) so as not to be exposed to the outside in any case, and is a safety measure against electric shock. is there. However,
In some cases, it may not be necessary to take such safety measures, and in such a case, the rotor 34 is omitted for assembly in order to reduce costs. Even in this case, the connecting piece portion 51 of the contact piece 47 is formed with the lamp pin engaging portion 57, and the lamp pin 18 is held by the lamp pin engaging portion 57, so that the fluorescent lamp 17 can be stably attached. , And electrical connection.

[0034]

According to the first aspect of the present invention, a terminal portion provided with an elastic piece to which a lead wire is connected, and a predetermined length extending from the terminal portion and fixedly held in the socket body are provided. The fixed elastic piece, a connecting piece that is folded back from the end of the fixed elastic piece and elastically engages and disengages with the lamp pin of the fluorescent lamp inserted into the socket body, and an extension of the connecting piece. Since the contact piece is formed at the tip end of the contact portion and comes into contact with the terminal portion, the connecting piece portion that receives the deforming force by the lamp pin is in a both-supported state by the contact portion formed at the tip end, Even if it receives a large deformation force from the lamp pin, it does not sag, and thus the holding force of the lamp pin can be reliably maintained.

According to a second aspect of the present invention, a lead wire insertion hole and a lead wire escape hole are formed in the terminal portion, and the leading edge portion of the elastic piece is opposed to the edge portion of the lead wire escape hole so that the edges of the lead wire escape hole are opposed to each other. Is provided so as to sandwich the lead wire, and the contact side between the leading edge of the elastic piece and the edge of the lead wire escape hole is the burr side during punching. Since the part that holds is the tip edge of the elastic piece and the edge of the lead wire escape part, the holding force of the lead wire is high, especially when punching the contact side of each edge with the lead wire. Since it is on the burr side, it is possible to securely hold the lead wire because it strongly sticks to the lead wire.

According to a third aspect of the present invention, a terminal portion provided with an elastic piece to which a lead wire is connected and a fixed-side elastic member extending from the terminal portion and fixedly held in the socket body are provided. A contact piece integrally formed with a piece and a connecting piece that is elastically engaged with and disengaged from the lamp pin of the fluorescent lamp that is folded back from the end of the fixed elastic piece and inserted into the socket body. Since a groove having a constant width is formed on the entire circumference of the rotor mounted inside the main body, and the pair of the contact pieces are fitted in the groove of the rotor to attach the rotor and the contact piece to the socket body. , The rotor and the contact piece can be installed together in the socket body to prevent the rotor from coming off.
As a result, the rotor mounting structure is simple and the number of parts is small.

According to a fourth aspect of the present invention, a terminal portion having an elastic piece to which a lead wire is connected and a fixed-side elastic member extending from the terminal portion and fixedly held in the socket body are provided. A contact piece is integrally formed of a piece and a connection piece part that is folded back from the end of the fixed elastic piece and elastically engages and disengages with the lamp pin of the fluorescent lamp inserted into the socket body. Since the recessed lamp pin engaging portion where the lamp pin falls is formed in the connecting piece, the concave lamp pin engaging portion where the lamp pin falls is formed in the connecting piece where the lamp pin of the contact piece contacts, so that the rotor is not used. However, the lamp pin can be reliably held, and a product that requires the rotor and a product that does not require the rotor can be provided as common parts.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of the present invention in an assembled state.

FIG. 2 is an exploded perspective view showing the instrument body together.

FIG. 3 is a perspective view seen from the front side together with a fluorescent lamp.

FIG. 4 is a perspective view seen from the back side.

FIG. 5 is a front view showing a state in which a fluorescent lamp is attached.

FIG. 6 is a front view showing an example of a mounting process of a fluorescent lamp.

FIG. 7 is a bottom view of the socket body.

FIG. 8 is a horizontal cross-sectional plan view showing a state where the device is fixedly attached to the instrument body.

FIG. 9 is a horizontal cross-sectional plan view showing a state of being elastically attached to the instrument body.

FIG. 10 is a perspective view of a contact piece.

11 is a cross-sectional view taken along the line AA of FIG.

FIG. 12 is a partially enlarged front view showing a state in which lead wires are connected.

FIG. 13 is a front view showing a modified example of the present embodiment.

FIG. 14 is a horizontal cross-sectional plan view showing an example of a conventional fixed side attachment state.

FIG. 15 is a horizontal cross-sectional plan view showing an example of a conventional movable side attachment state.

[Explanation of symbols]

 1 Socket body 48 Elastic piece 49 Terminal part 50 Fixed side elastic piece 51 Connection piece part 52 Abutment part

Claims (4)

[Claims] 1. A terminal portion including an elastic piece to which a lead wire is connected, a fixed-side elastic piece extending from the terminal portion and fixedly held in the socket body, and the fixed portion. A connection piece part that is folded back from the end of the side elastic piece and elastically engages and disengages with the lamp pin of the fluorescent lamp inserted into the socket body, and the terminal formed on the extension tip of this connection piece part. A contact piece structure for a fluorescent lamp socket, comprising: a contact part that contacts the part. 2. A lead wire insertion hole and a lead wire escape hole are formed in a terminal portion, a tip edge portion of an elastic piece is opposed to an edge portion of the lead wire escape hole, and the lead wires are joined to each other at their edge portions. A socket for a fluorescent lamp, wherein the socket is provided so as to be sandwiched, and the contact side between the tip end edge of the elastic piece and the edge of the lead wire escape hole is the burr side at the time of punching. Contact piece structure for. 3. A terminal portion having an elastic piece to which a lead wire is connected, a fixed elastic piece extending from the terminal portion and fixedly held in the socket body, and the fixed elastic piece. A rotating piece that is attached to the inside of the socket body by integrally forming a contact piece that is folded back from the end of the piece and is connected to the lamp pin of the fluorescent lamp that is elastically engaged and disengaged with the lamp pin inserted into the socket body. A fluorescent lamp in which a groove having a constant width is formed on the entire circumference of the child, and a pair of the contact pieces are fitted in the groove of the rotor to attach the rotor and the contact piece to the socket body. Contact piece structure for the socket. 4. A terminal portion having an elastic piece to which a lead wire is connected, a fixed elastic piece extending from the terminal portion and fixedly held in the socket body, and the fixed elastic piece. A contact piece is integrally formed with a connecting piece portion that is elastically engaged and disengaged with a lamp pin of a fluorescent lamp that is folded back from the end portion of the piece and inserted into the socket body, and the lamp pin is formed on the connecting piece portion. A contact piece structure for a fluorescent lamp socket, characterized in that a recess-shaped lamp pin engaging portion into which the lamp falls is formed.