JPH0648171U - Terminal pin - Google Patents

Abstract

(57) [Summary] [Structure] A terminal pin 1 composed of a metal body 2 and a conductor connecting portion 3. The lead wire connection portion 3 is provided at one end of the main body 2, and has a bottomed hole 4 into which the end face can be inserted while the coated lead wire 6 is covered. In addition, the thread 5 is formed on the inner surface of the bottomed hole 4.
Is provided. [Effect] The covered conductor 6 is placed in the bottomed hole 4 of the conductor connecting portion 3.
Is inserted without stripping the coating and the conductor wire connecting portion 3 is crushed by a crimping tool, the screw thread 5 provided on the inner surface of the bottomed hole 4 breaks through the coating and becomes conductive with the conductor wire. Since the terminal pin 1 can be used in this way,
There is no need to strip off the coating or assemble many thin wires,
It is easy to insert the coated conductor wire 6 into the bottomed hole 4. Also, since it is a simple process, it is easy to automate.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a terminal pin used by connecting to an end of a conductor.

[0002]

[Prior art]

 Conventionally, the terminal pin includes a metal main body 101 formed in a shape connectable to a connector as shown in FIG. 4, and a metal conductive wire connecting portion 102 provided at one end of the main body. Then, a bottomed hole 103 into which the conductor 104 whose coating has been removed is inserted is provided on the end face of the conductor connecting portion 102. Then, as shown in Fig. 4, the method of using this terminal pin is to strip the coating of the conductor wire, insert the conductor wire 104 with this coating stripped into the bottomed hole 103, and crush the conductor wire connection part with a crimping tool. Then, the conductor wire connection portion 102 and the conductor wire 104 are connected.

However, such a connection method is inconvenient because it requires a step of stripping off the coating of the conductive wire 104 and inserting the tip of the stripped conductive wire 104 into the bottomed hole 103. That is, since the conductive wire 104 is usually covered with an insulating material such as synthetic resin or rubber in close contact, a considerable amount of force and technique are required to remove the coating without cutting the conductive wire 104. Also, since many of the conductor wires stripped of this coating are composed of thin wires, it is also necessary to insert all of these thin wires into the bottomed hole with a suitable technique. Therefore, there is a problem in that it takes time to connect the conductor wire and the terminal pin.

As a solution to this problem, as disclosed in Japanese Utility Model Laid-Open No. 4-84993, there is known a terminal pin provided with a protrusion having a sharp tip on the inner peripheral surface of a bottomed hole. ing. This terminal pin is inserted into a bottomed hole with the conductor wire covered, and the bottomed hole is crushed by a crimping tool so that the projecting part pierces the cover and conducts with the conductor wire. This terminal pin is a preferable method because it can be easily inserted because the conductor wire may be inserted into the hole having a bottom while covering the conductor wire.

[0005]

[Problems to be solved by the device]

 However, it was found that when connecting the lead wires with this terminal pin, the sharp tip may cut not only the coating but also the lead wire. It was also found that if the tip of the protrusion is rounded so as not to cut the conductor wire, the conduction between the conductor wire and the terminal pin becomes insufficient. Therefore, the purpose of the present invention is that the conductor wire can be easily inserted and connected in the bottomed hole of the terminal pin in a short time, and the conductor wire and the terminal pin are completely connected without cutting the conductor wire. It is to provide a terminal pin that facilitates automation of the connection process.

[0006]

[Means for Solving the Problems]

 The present invention has been made in order to solve the above problems and achieve the above objects.A metal main body formed in a shape connectable to a connector and one end of the main body are provided on an end face of the main body. It consists of a metal wire connecting part with a bottomed hole that can be inserted with the covered wire covered, and a screw thread is provided on the inner peripheral surface of the bottomed hole of this wire connecting part.

In the present invention, the main body and the lead wire connecting portion may be made of any metal, and for example, SUS303, SUS304, SKD, SCM, aluminum and the like are preferable, but especially a free-cutting brass rod (BSBM). ) C3604BD is preferred. Further, the same metal as the main body of the connector and the conductor connecting portion may be used, or different metals may be used, but the same metal is preferable because it is easy to integrally form the whole.

[0008]

[Operation] The terminal pin of the present invention is used as follows. That is, the coated conductor wire is directly inserted into the bottomed hole of the conductor wire connection portion without stripping the coating, and the conductor wire connection portion is crushed by a crimping tool. Then, the screw thread provided on the inner peripheral surface of the conductor wire connecting portion penetrates the coating of the covered conductor wire, enters the conductor wire, and comes into contact with the conductor wire for electrical conduction. At this time, since the screw thread is not a sharp tip, the conductor wire is not cut. Further, when the wire connecting portion is crushed with a crimping tool, many threads of the screw thread come into contact with the conductive wire, so that conduction between the screw thread and the conductive wire is complete.

The terminal pin of the present invention can be inserted in the bottomed hole of the wire connecting portion without stripping the coating, as it can be seen from such use. easy. Further, it is not necessary to strip off the coating or assemble the thin wires forming the conductor, and since the conductor is not cut, it is easy to automate.

[0010]

【Example】

 Next, an embodiment of the present invention will be shown. 1 to 3 show an embodiment of the present invention, FIG. 1 is a partially cutaway side view of a terminal pin, FIGS. 2 to 3 show usage of the terminal pin shown in FIG. 1, and FIG. FIG. 3 is an explanatory view showing a state in which the covered conductor is inserted into the bottomed hole, and FIG. 3 is an explanatory view showing a cross section of the conductor connecting portion when the conductor connecting portion is crushed by a crimping tool.

1-3, 1 is a terminal pin, and this terminal pin 1 comprises a main body 2 and a conductor connecting portion 3. The main body 2 is a rod-shaped body having a diameter of 4.7 mm, and has a shape connectable to a connector. The lead wire connecting portion 3 is a tubular body having a diameter of 3 mm and a bottomed hole 4 having a diameter of 2.5 mm and a depth of 4.7 mm and is provided on the inner surface thereof with a thread 5 having a height of about 0.25 mm. There is.

Reference numeral 6 denotes a coated conductive wire. The coated conductive wire 6 is composed of a conductive wire 61 formed by collecting a large number of thin conductive wires and a coating 62 made of polyethylene. The diameter of the bottomed hole 4 is 2.5 mm, and the height of the protruding pieces 5 on both sides is 0.25 × 2, and the actual size of the hole is 2 mm. That's it. A stopper 7 having a diameter of 6.0 mm is provided between the main body 2 and the lead wire connecting portion 3, and the stopper 7 stops when the main body is inserted into the connector.

Next, a method of using the terminal pin 1 will be described. First, as shown in FIG. 2, the covered conductor wire 6 is inserted into the bottomed hole 4 of the conductor wire connection portion 3 while being covered. Then, as compared with the conventional method of stripping off the coating 62 or inserting the thin conductive wires 61 into the bottomed hole 4, the insertion was extremely simple and quick. Next, the conductor connecting portion 3 is crushed from the outside of the conductor connecting portion 3 with a crimping tool. Then, as shown in FIG. 3, the screw thread 5 provided on the inner surface of the bottomed hole 4 pierces the coating 62, and many threads of the screw thread 5 reach the conducting wire 61, and the coating 62 extends between the screw threads 5. Enter the valley.

In this way, when the projecting portion 5 reaches the conducting wire 61, the main body 2 and the conducting wire 61 are electrically connected to each other, so that the main body 2 can be used by connecting to the connector. In this way, the coated conductor wire 6 can be inserted into the bottomed hole 4 of the terminal pin 1 while being covered, and the conductor wire connection portion 3 can be connected simply by crushing it with a crimping tool, which is extremely simple and easy to automate.

[0015]

[Effect of device]

 The terminal pin of the present invention inserts a covered conductor into the bottomed hole of the conductor connection without stripping the coating, and crushes the conductor connection of the terminal pin with a crimping tool to reveal the inner surface of the bottomed hole. The provided screw thread penetrates through the coating and becomes conductive with the conductive wire.

As described above, since the coated conductor may be inserted into the bottomed hole of the conductor connecting portion of the terminal pin as it is, it can be easily inserted. It is convenient because there is no need to combine thin lines. Further, since there is no complicated process of stripping the coating and putting together a large number of thin wires in this way, and the conductor wire is not cut by the screw thread, it is easy to automate. As described above, the present invention is extremely valuable because it has various effects.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a terminal pin according to an embodiment of the present invention.

FIG. 2 is a view showing a usage state of the terminal pin shown in FIG. 1, and is an explanatory view showing a state in which a covered conductor wire is inserted into a bottomed hole.

FIG. 3 is an explanatory view showing a cross section of a conductor connecting portion when a covered conductor is inserted into a bottomed hole and the conductor connecting portion is crushed by a crimping tool.

FIG. 4 is a view showing a conventional usage state of a terminal pin, and is an explanatory view showing a state in which a conductor wire whose coating has been removed is inserted into a bottomed hole.

[Explanation of symbols]

 1 Terminal Pin 2 Main Body 3 Conductor Connection Part 4 Bottomed Hole 5 Screw Thread 6 Coated Conductive Wire 61 Thin Conductive Wire 62 Coated

Claims (1)

[Scope of utility model registration request] 1. A metal main body formed in a shape connectable to a connector, and a metal body provided at one end of the main body and having a bottomed hole into which an end face of the main body can be inserted while the coated conductor wire is covered. A terminal pin comprising a lead wire connecting portion, and a screw thread provided on an inner peripheral surface of a bottomed hole of the lead wire connecting portion.