JPS6317184Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a fluorescent lamp socket that allows easy connection and disconnection of power lines.

Conventionally, in this type of fluorescent lamp socket, the power line and the fluorescent lamp terminal are brought into pressure contact by inserting the tip strip of the power reel line between the fluorescent lamp terminal and the elastic plate. Ta. However, in such a conventional device, the pull-out strength of the lead wire is weak, and there is a risk that the lead wire may easily come off when an excessive pull-out force is applied to the lead wire.

The object of this invention is to provide a fluorescent lamp socket which is strong against the force of pulling out the lead wire by providing a means for pressing and holding the sheathed portion of the lead wire inserted into the socket cover.

To summarize this invention, the tip strip portion of the lead wire 70 is held between the elastic plates 51, 51' and the socket terminals 50, 50', and the covered portion of the lead wire 70 is held between the guide rails 12, 12' and the screw receiver. 4, that is, the lead wire 70 is held between two places.

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

Fig. 1 is a partially cutaway exploded perspective view of a fluorescent lamp socket which is an embodiment of this invention, Fig. 2 is a partially sectional view thereof, and Figs. 3 A and B are views of the same fluorescent lamp socket. FIG. 2 is a front view of a socket terminal portion and a cross-sectional view taken along the line A-A.

1 and 2, the lead wire insertion unit base 1 includes a substantially cylindrical socket cover 10, a semi-cylindrical base portion 11 with screw insertion holes 80, and a semi-cylindrical lead wire guide rail. 12 and 12', facing each other.

A pair of washer recesses 13 are integrally molded from synthetic resin. Lead wire guide rail 12,1
2' is bored in the bottom surface of the socket cover 10 and is placed vertically around the lead wire insertion openings 14, 14' to guide the lead wire 70 inserted from the insertion openings 14, 14' to the socket terminal portion 2. The socket terminal section 2 includes a cylindrical terminal section cover 20, a joint section 21 with the lead wire insertion section base 1, a socket mounting section 22 provided on the side peripheral surface of the cover 20, and a fluorescent lamp mounting section 23. . The joint portion 21 and the fluorescent lamp mounting portion 23 are opposed to each other within the cover 20 via a spring (not shown), and an elastic force is applied to both the joint portion 21 and the fluorescent lamp mounting portion 23. A washer (not shown) is attached to the socket attachment portion 22, and is screwed to the ceiling or the like using this washer. The joint 21 is provided with fluorescent lamp terminals 50, 50' and elastic plates 51, 51' as shown in FIGS. Fluorescent lamp terminal 5
The strip wire of the lead wire 70 is inserted between the elastic plates 51 and 51'. Also, joint part 2
A screw hole 81 is drilled below the center of the base portion 11 at a position corresponding to the screw insertion hole 80 of the base portion 11, and the lead wire insertion portion base 1 and the socket terminal portion 2 are connected and held by the screw 82. do. An engaging convex piece 24 is formed above the center of the joining part 21 and is fitted between the guide rails 12, 12' to determine the joining position between the base body 1 and the terminal part 2. A window 15 into which the push button 3 is inserted is cut out in the bottom surface of the socket cover 10, and a guide piece 60 is erected at the peripheral end of the window 15. The push button 3 is formed into a U-shape as a whole and consists of a lever portion 30, locking portions 31, 31', and push rods 32, 32'. The lever portion 30 is exposed to the outside through the window portion 15, and is prevented from coming off to the outside by locking portions 31, 31'. The push button 3 has a window portion 15.
The side surfaces of the push rods 32, 32' are formed in such a width that they come in contact with the end surfaces of the guide rails 12, 12' when the push rods 32, 32' are fitted into the push button. Push rod 3 when pushing 3.
2, 32' are guided to elastic plates 51, 51'. A screw receiving portion 4 is placed on the bottom surface of the base body 1 between the push rods 32 and 32' of the push button 3. The screw receiving part 4 has a protruding piece 40 formed on the upper surface, and this protruding piece 40 fits into a screw receiving part guide groove 53 cut out approximately in the center of the joint surface of the joint part 21 and connects the base body 1 and the terminal 2. It guides the movement of the screw receiving part 4 during joining. A lead wire 7 is provided on the surface of the screw receiving portion 4 facing the guide rails 12, 12'.
A protrusion 41 for pressing and holding 0 is formed in two stages. Further, the screw receiving portion 4 is formed with a fitting recess 42 into which the nut 5 is fitted.
The nut 5 fitted into the nut 2 has a washer recess 13.
The cover 10 is inserted through the washer 6 fitted into the cover 10.
A screw 8 inserted through a screw groove (screw hole) 7 cut out in is engaged.

In such a configuration, when connecting the lead wire 70 to the socket terminal 50, the lead wire 70 with a strip-shaped tip is inserted through the lead wire insertion opening 14', and the fluorescent light is passed through the guide rails 12, 12'. The strip wire at the tip of the lead wire 70 is brought into contact with the lamp terminal 50. When the push button 3 is pushed in this state, the push rod 32 moves the elastic plate 51 to the fourth
As shown in the figure, since it is elastically bent, the strip portion is inserted between the terminal 50 and the elastic plate 51, and then the push button 3 is released. As a result, the strip portion of the lead wire 70 is held between the terminal 50 and the elastic plate 51, and the lead wire 70 and the terminal 50 are connected. Next, when the previously loosened screw 8 is tightened, the screw head of the screw 8 is fixed in the washer recess, so the screw receiver 4 into which the nut 5 is inserted moves toward the lead wire 70, and the lead wire 70 is covered. The protrusion 41 of the screw receiving part 4 presses the part. As a result, the lead wire 70 is pressed and held by the guide rail 12' and the screw receiving portion 4. When removing the lead wire 70, the above-mentioned procedure may be reversed. In any case, by doing so, the lead wire 70 can be easily attached and detached, and the lead wire 70 can be attached reliably.

As described above, according to this invention, the lead wire is securely held by interposing the lead wire between the screw and the screw receiver, tightening the screw, and pressing the screw receiver against the lead wire. . In addition, since the lead wire is held between a covering part covered with a resin tube, etc., even if a tensile force is applied to the lead wire from the outside, that force can be absorbed, reducing the load on the contact part and making it difficult to slip. , the lead wire becomes difficult to come off.
In other words, the strength against the pull-out force of the lead wire is increased. Further, since the only operation required is to tighten the screws, anyone can easily operate it, and the simple structure has the advantage of being low in price.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway exploded perspective view of a fluorescent lamp socket that is an embodiment of this invention, Fig. 2 is a partially sectional view thereof, and Figs. 3A and B are front views of the fluorescent lamp socket. The figure, a sectional view taken along the line A-A, and FIG. 4 are diagrams for explaining the lead wire insertion operation of the fluorescent lamp socket. 3... Push button, 4... Screw receiver, 7... Thread groove (screw hole), 8... Screw, 10... Socket cover, 12, 12'... Guide rail, 14, 1
4'... Lead wire insertion port, 50, 50'... Socket terminal, 51, 51'... Elastic plate, 70... Lead wire.

Claims (1)

[Claims for Utility Model Registration] A push button 3 having a pressing lever portion 30 protruding from the outer surface of a socket cover 10, socket terminals 50, 50, and the socket terminals 50, 50 being pressed by the push button 3. The elastic plates 51, 51' separated from the socket terminals 50, 50' and the lead wires 70 are connected to the socket terminals 50, 50' from the outside of the socket cover 10.
and semi-cylindrical guide rails 12, 12' that guide the guide rails 12, 12' to between the elastic plates 51, 51'.
After inserting the lead wire 70 along the elastic plates 51 and 51', by releasing the pressing force of the lever part 30, the tip strip part of the lead wire 70 is inserted into the elastic plates 51, 51'.
In the fluorescent lamp socket sandwiched by the socket terminals 50, 50, a screw receiving part 4 for holding the lead wire is attached to the unclosed side of the semi-cylindrical guide rails 12, 12. , 12 so as to be movable in a direction perpendicular to the axial direction of the guide rails 4.
A screw hole 7 is formed on the side surface of the socket cover 10 on the 1, 41' side, and the screw hole 7 and the screw receiving part 4 are connected to each other.
The screw receiving part 4 is pressed and moved by a screw 8 inserted through the screw receiving part 4 and the guide rails 12, 12' to press and hold the covered part of the lead wire 70. Fluorescent light socket.