JPH0528687Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a telephone connector, and particularly relates to a telephone connector that can be easily attached and detached.

[Prior Art] A conventional connector of this type of telephone will be explained with reference to FIGS. 9 and 10 of the appendix. A microphone 2 and earphones 3 are built into the handset 1.
Connection terminals 4, 4 are provided protruding from the back surface of each.
Then, lead wires 6, 6 were crimped to metal contact pins 5, 5 which were bent into a predetermined shape, and fitted onto the connection terminals 4, 4.

[Problems to be solved by the invention] In the conventional telephone connector described above, the contact pins 5, 5 are fitted into the connecting terminals 4, 4, one by one, so installation is troublesome, workability is poor, and installation is difficult. It was taking time. Further, the metal contact pins 5, 5 are exposed and close to each other, and there is a risk of short circuit due to contact with other objects.

Therefore, the object of this invention is to provide a telephone connector that can be easily attached to and detached from each connection terminal.

[Means for Solving the Problems] This invention was proposed to achieve the above object, and includes a lead wire crimp portion 13 at one end of the base 12 of the contact pin 10 formed of a flat metal plate. The other end is bent at a substantially right angle to form the locking part 14, and one longitudinal edge of the intermediate part of the base part 12 is bent at a substantially right angle, and the bent part The contact piece 11 is formed by curving both ends of the contact pin 1 into a substantially C-shape.
The socket mold 15 for fitting 0 has a groove 16 into which the contact piece 11 is inserted, and the groove 16 is open on the rear surface 15a side of the socket mold 15, and further, The socket mold 1
An insertion hole 17 into which a flat connecting terminal 25 is inserted is opened in the lower surface 15b of 5 to communicate with the groove 16, and a groove 18 is formed in the upper part of the groove 16 and offset to one side. provided, both grooves 16,1
8 to communicate with each other so that when the base 12 is inserted into the groove 18, the contact piece 11 can be inserted into the groove 16, and a projecting piece 20 that can elastically move up and down near the bottom of the groove 18 is installed in the groove 18. When the base 12 of the contact pin 10 is inserted into the groove 18, the locking part 14 provided at the tip of the base 12 lowers the protrusion 20 and It is an object of the present invention to provide a telephone connector characterized in that the locking portion 14 can be locked by the elastic restoration of the projecting piece 20 when the protruding piece 20 reaches the distal end surface thereof.

[Function] A lead wire is crimped to one end of the base 12 of the contact pin 10 formed of a flat metal plate, and the base 12 of the contact pin 10 is inserted from the rear end of the groove 18 provided in the socket mold 15. do. At this time, the groove 16 provided below and offset to the side of the groove 18 is open to the groove 18, and since the rear surface 15a side is open, a C-shaped contact piece is formed. 11 is also inserted into the groove 16. Furthermore, since the tip of the base 12 of the contact pin 10 is bent downward at a substantially right angle to form the locking part 14, when the base 12 is inserted into the groove 18,
The protruding piece 2 in which the locking part 14 is provided in the groove 18
When the protruding piece 20 reaches the distal end surface of the protruding piece 20, the protruding piece 20 returns due to its elastic restoring force and locks the locking portion 14 to lock the contact pin. 10 will not accidentally slip out of the socket mold 15. Thus, contact pin 10
can be fitted into the socket mold 15 very easily and reliably. Further, if the protruding piece 20 is pressed using a jig, the contact pin 10 can be easily removed from the socket mold 15, so that the contact pin 10 can be easily replaced.

Moreover, on the lower surface 15b of the socket mold 15,
An insertion hole 17 into which a flat connection terminal 25 provided on the handset 23 is inserted is opened, and the C
Since the contact piece 11 is in communication with the groove 16 into which the contact piece 11 is inserted, if the insertion hole 17 of the socket mold 15 is pushed into the connection terminal 25 from above, the connection terminal 25 will be inserted into the groove 16. contact piece 11
It is elastically joined to create an electrical connection.

[Embodiment] One embodiment of the present invention will be described in detail below with reference to the attached drawings.
is a contact pin formed from a flat metal plate. The contact pin 10 comprises a base 12 and a contact piece 11. One end of the base 12 is provided with a crimping portion 13 for a lead wire, and the other end is bent downward at a substantially right angle to form a locking portion 14.
The edge of one side in the longitudinal direction of the middle part of the base 12 is bent at a right angle, and both ends of the bent part are curved outward to form a C-shape.
3 is provided with a contact piece 11 for a flat connection terminal 25.

Next, FIGS. 3 to 5 show a resin-molded socket mold 15, and inside the socket mold 15 are the contact pins 10 described above.
Grooves 16, 16 are provided in which the contact pieces 11 are to be mounted. The grooves 16, 16 are connected to the socket mold 1.
The insertion holes 17, 1 are opened on the rear surface 15a side of the socket mold 15, and the insertion holes 17, 1 are opened on the lower surface 15b of the socket mold 15.
7, and grooves 18, 18 are provided above the grooves 16, 16. This groove 18 communicates with the groove 16, and is deviated to the left in front view as shown in FIG.
It is formed to match the cross-sectional shape of 0. Then, by drilling a recess 19 near the opening of the groove 18 on the front side 15c of the socket mold 15, protrusions 20, 20 are formed on the bottom surface of the groove 18. Since the protruding piece 20 has a narrow base 20a, it has elasticity in the vertical direction, and when the protruding piece 20 is pressed downward as shown by the arrow X in FIG. After rotating slightly downward, it returns to its original position.

Thus, the crimp portion 13 of the contact pin 10
After the ends of the lead wires 21 are crimped and connected, the contact pins 10 are inserted into the grooves 16 and 18 from the rear surface 15a of the socket mold 15. At that time, the locking portion 14 at the tip of the contact pin 10
presses the protruding piece 20 downward while rubbing the upper surface of the protruding piece 20. Therefore, as shown in FIG. 6 and FIG.
0b to prevent the contact pins 10, 10 from coming off backward. In this way, the connector 22 is formed by integrally mounting the contact pins 10, 10 on the socket mold 15.

Then, as shown by arrow Y in Fig. 8,
The connector 22 is inserted into the flat connection terminals 25, 25 of the microphone 24 of the receiver 23 from above. At this time, the connecting terminal 25 is inserted into the connector 22 through the insertion hole 17 and is fitted with the contact piece 11 of the contact pin 10. Thus, the microphone 24 and the lead wires 21, 21 are electrically connected, but since the lead wires 21, 21 are connected at right angles to the insertion direction of the connector 22, when the connector 22 is inserted, the leads 21, 21 are electrically connected. line 21,
21 doesn't get in the way. Further, in the figure, the connector 22 is also inserted into the connection terminal (not shown) of the earphone 26 in the same manner as described above. Since the lead wires 21, 21 are connected to the rear of the connector 22, the connector 22 is connected to the connecting terminal 2.
5, 25, the grip of the connector 22 is not hindered.

By integrally mounting the plurality of contact pins 10, 10 in the socket mold 15, attachment and detachment to and from the connection terminals 25, 25 can be done in a single insertion or removal of the connector 22. Thus, the operability of attaching and detaching the connector 22 is significantly improved. Furthermore, the protruding piece 20 provided within the socket mold 15 engages with the locking portion 14 of the contact pin 10, thereby preventing the contact pin 10 from accidentally coming off. Furthermore, since the base 12 of the contact pin 10 extends perpendicularly to the insertion direction of the contact piece 11, the crimp portion 13 of the lead wire protrudes downward, and the contact pin 10 is inserted into the socket mold 15. When putting it on, you can insert it smoothly without getting your hands caught.

[Effects of the invention] In this invention, a lead wire crimping portion 13 is provided at one end of the base 12 of the contact pin 10 to crimp the lead wire. The other end of the base 12 is bent at a substantially right angle to form a locking portion 14.
Furthermore, one longitudinal edge of the base portion 12 is bent at a substantially right angle, and the bent portion is formed into a substantially C-shaped contact piece 11 . On the other hand, the socket mold 15 also has a groove 18 into which the base 12 of the contact pin 10 is inserted.
and a groove 16 into which the contact piece 11 is inserted, and the grooves 16 and 18 are offset in position corresponding to the base 12 of the contact pin 10 and the contact piece 11, respectively, and , so that the groove 16 is positioned below the groove 18, the contact pin 10 can be easily inserted into the socket mold 15, and the protrusion 2 provided in the groove 18 can be easily inserted into the socket mold 15.
The locking portion 14 at the tip of the base 12 engages with the tip end surface of the contact pin 10, which prevents the contact pin 10 fitted into the socket mold 15 from accidentally coming off. Further, the contact pin 10 is connected to the protruding piece 2.
0 can be easily removed by pressing with a jig, so it can be easily replaced. Furthermore,
By pushing the insertion hole 17 provided on the lower surface 15b of the socket mold 15 into the connecting terminal 25 of the handset 23 from above, the connecting terminal 25 is elastically connected to the contact piece 11 fitted into the groove 16. This creates an electrical connection. In the present invention, as described above, the contact pin 10 is molded into the socket mold 1.
5, the contact piece 11 can be easily and securely fitted to the receiver 23, and can be attached to the receiver 23 extremely easily and quickly, and the contact piece 11 requires a large area to accommodate the flat connecting terminal 25. However, since the contact piece 11 is provided by bending one side edge of the base 12 at a substantially right angle, the vertical dimension can be made small, and therefore the height of the socket mold 15 can also be made small. can be formed.

[Brief explanation of drawings]

1 to 8 show an embodiment of the present invention. Figure 1 is a side view of the contact pin.
Figure 2 is a plan view of the same, Figure 3 is a front view of the socket mold, Figure 4 is a bottom view of the same, Figure 5 is a side view of the same,
Fig. 6 is a front view of the socket mold with the contact pin inserted, Fig. 7 is a vertical sectional view taken along the line A-A in Fig. 6, and Fig. 8 is a partially cutaway slope view of the handset with the connector attached. It is. 9 and 10 show a conventional example, in which FIG. 9 is a partially cutaway perspective view of the receiver with the connector attached, and FIG. 10 is a front view of the main parts of the connector. 10...Contact pin, 11...Contact piece, 1
2...Base, 13...Crimp part, 15...Socket mold, 22...Connector.

Claims (1)

[Scope of utility model registration request] A lead wire crimping part 13 is provided at one end of the base 12 of the contact pin 10 formed of a flat metal plate,
The locking part 14 is formed by bending the other end at a substantially right angle, and one longitudinal edge of the middle part of the base part 12 is bent at a substantially right angle, and both ends of the bent part are bent at a substantially right angle. The contact piece 11 is formed by curving the contact pin 10 into a substantially C-shape, and a socket mold 15 into which the contact pin 10 is fitted has a groove 16 into which the contact piece 11 is fitted; Moreover, the groove 16 is opened on the rear surface 15a side of the socket mold 15, and is opened on the lower surface 15b of the socket mold 15.
An insertion hole 17 into which a flat connection terminal 25 is inserted is opened to communicate with the groove 16, and a groove 18 is provided above the groove 16 and offset to one side. A projecting piece 2 is provided near the bottom of the groove 18 that allows the grooves 16 and 18 to communicate with each other so that the contact piece 11 can be inserted into the groove 16 when the base 12 is inserted into the groove 18, and that can elastically move up and down near the bottom of the groove 18.
0 is provided along the groove 18, and when the base 12 of the contact pin 10 is inserted into the groove 18, the locking part 14 provided at the tip of the base 12 is caused to fall below the protrusion 20. A telephone connector characterized in that, when the protruding piece 20 reaches the tip end face, the locking portion 14 can be locked by the elastic restoration of the protruding piece 20.