JPH09115561A - Crimp terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent excessive and insufficient insertion of the conductor tip, and enhance reliability and workability by positioning it by arranging a stopper to restrict its insertion by coming into contact with the conductor tip of an electric wire to be inserted into a crimping part. SOLUTION: Covering of an electric wire 1 is cut off, and an exposed conductor 2 is inserted into, crimped to and fixed to a crimping part 3, and a terminal part 4 arranged with an engaging recessed part 5 is inserted into and connected to an external connector. The engaging recessed part 5 allows a natural return of a deflecting part of the connector, and locks it in contact on the terminal part 4. In the crimp terminal 10, a rib 11 of a stopper is arranged to come into contact with the conductor tip of the electric wire 1 inserted into the crimping part, and insertion of the conductor 2 is restricted. Therefore, the inserted conductor tip can be easily and reliably positioned.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crimp terminal for crimping an electric wire, and more particularly to a crimp terminal capable of easily positioning a leading end of a conductor of an electric wire to be crimped.

[0002]

2. Description of the Related Art Conventionally, a crimp terminal is crimped to the tip of an electric wire connected to an electric component or a circuit to facilitate component replacement or mounting. As the crimp terminal, a screw or a bolt is used. -There are so-called round terminals that connect to external connecting parts with nuts or the like, and a set of connecting male and female. Such crimp terminals are widely used, for example, in wire harnesses for wiring devices such as vehicles.

An example of this type of crimp terminal is shown in FIG.
As shown in FIG. 6, the coating of the electric wire 1 is cut off to expose the conductor wire 2, and then the tip of the conductor wire 2 is inserted into the crimp portion 3 and crimped. This crimp terminal is to be inserted into the connector (engaging member) 6 from the terminal portion 4 thereafter to ensure safety, and to allow the lock portion 7 of the connector 6 bent by the terminal portion 4 to spontaneously return. It is configured to be allowed in the concave portion 5 and to be engaged and mounted on the rear end side of the terminal portion 4. In the figure, reference numeral 8 is a holding portion which is pressed against the coating of the electric wire 1 to hold it.

[0004]

However, in such a conventional crimp terminal, the crimp portion 3 is formed in a tubular shape and the space for inserting the conductor 2 is connected to the terminal portion 4. Therefore, the tip of the conductor 2 is formed. The degree of insertion into the crimping part 3 was visually judged to perform the crimping work. For this reason, there is a problem in that the leading end of the conductive wire 2 enters the recess 5 to the side of the terminal portion 4 and interferes with the lock portion 7 to prevent its natural recovery, resulting in incomplete engagement and disconnection from the connector 6. . In addition, if the degree of insertion of the tip of the conductor wire 2 into the crimping portion 3 is suppressed in order to prevent this problem, there is a problem that the crimping is insufficient and the electric wire 1 may come off.

When such a problem occurs, the devices such as the vehicle cannot be normally driven or stop due to the disconnection or the poor contact, so that the problems occur. There is also a problem that a special check process is required to prevent it. Therefore, the present invention aims to improve reliability and workability by positioning the leading end of the wire to be inserted into the crimping portion at a predetermined position to prevent excessive and insufficient insertion of the leading end of the wire. The purpose is to

[0006]

In order to achieve the above object, the invention according to claim 1 comprises a crimping portion for crimping a conductor wire of an electric wire with a coating cut off and a terminal portion connected to an external connecting member. And a stopper for abutting the leading end of a wire of an electric wire inserted into the crimping portion to limit the insertion.

According to the first aspect of the present invention, the leading end of the electric wire of the electric wire to be inserted into the crimp portion abuts on the stopper, and the insertion is restricted at the position where the stopper is arranged. Therefore, the leading end of the wire can be positioned at any position. According to a second aspect of the invention, in addition to the configuration of the first aspect of the invention, the flexible portion of the engaging member, which is deflected by the terminal portion when inserted into another engaging member, is allowed to spontaneously return to the flexible portion. And a stopper disposed on the side of the engaging portion near the crimping portion.

According to the second aspect of the invention, the leading end of the electric wire of the electric wire to be inserted into the crimping portion is brought into contact with the stopper provided on the side of the engaging portion near the crimping portion to restrict the insertion thereof. Therefore, the leading end of the wire of the electric wire is positioned before the bending portion of the engaging member is inserted without being inserted.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 to 4 are views showing an embodiment of a crimp terminal according to the invention described in claims 1 and 2. In the present embodiment, the same configurations as those of the above-described conventional example are designated by the same reference numerals and will be described.

1 to 3, reference numeral 10 denotes a crimp terminal, and the crimp terminal 10 is a crimp for crimping the exposed end of the conductor 2 by cutting off the coating of the electric wire 1 and inserting the exposed conductor 2. The outer shape (height) is formed larger than the distance between the portion 3 and the tip of the lock portion 7 protruding from the upper surface side in the connector 6 in a tongue shape, and is connected to an external connecting member (not shown). A connector (4), and a recess (engagement) (5) formed to allow the lock (7) to be in a natural state on the rear end side in the insertion direction of the terminal (4). When the terminal portion 4 is inserted into the inside for mounting 6, the concave portion 5 allows the return to its natural state after the terminal portion 4 bends the lock portion 7, and The concave portion 5 is engaged and locked at the rear end of the terminal portion 4 in the insertion direction.

This crimp terminal 10 has a recess 5 outside the crimp portion 3.
A rib (stopper) 11 is formed by punching the side from the back side of the side where the tip of the lead wire 2 is inserted and bending and processing. The rib 11 contacts the tip of the lead wire 2 that has passed through the crimping portion 3. It restricts further insertion.
Therefore, when the electric wire 1 is crimped to the crimp terminal 10, when the coating of the electric wire 1 is removed and the exposed end of the conductor 1 is inserted into the crimp portion 3 until it abuts against the rib 11, the end of the conductor 2 is crimped. After being fully inserted in the portion 3, further insertion can be restricted and positioning can be performed before the lock portion 7 is interfered with.

As described above, in this embodiment, the recess 5 is formed.
By providing the rib 11 on the side of the crimping portion 3, it is possible to prevent the conductor 2 from being inadvertently inserted into the crimping portion 3 at a position where it interferes with the lock portion 7 of the connector 6, It can be positioned in front of it by simply inserting it until it is stopped. Therefore, it is possible to reliably crimp the crimp portion 3 to the tip of the conductor 2 with a crimping tool or the like while preventing excessive and insufficient insertion of the tip of the conductor 1. Then, as shown in FIG. 4, when the terminal portion 4 is inserted into the connector 6 after this, the leading ends of the conductors 2 do not interfere with each other to prevent the lock portion 7 from returning to the natural state. Therefore, reliability and workability can be improved.

In the above embodiment, the rib 11 punched and bent as a stopper is provided, but the invention is not limited to this, and the rib 11 may be provided so as to project on the side into which the tip of the conductor 2 is inserted. It goes without saying that it is good. In addition, a crimp terminal 10 of a type that engages with and attaches the connector 6
However, the present invention is not limited to this, and for example, a stopper can be provided so that the leading end of the wire of the electric wire does not reach the connection position with the external connection member, so that the connection can be reliably performed.

[0014]

According to the first aspect of the invention, since the stopper restricts the insertion of the electric wire to be inserted into the crimping portion at the position where the stopper is in contact with the leading end of the electric wire, the leading end of the conductive wire is inserted into the crimping portion. Can be positioned at any position just by
Excessive and insufficient insertion of the leading end of the wire can be prevented. Therefore, at the time of crimping work, simply insert the tip of the wire into the crimping part until it comes into contact with the stopper, and place the wire at a position where it will not come off and at a position where it will not interfere with connection or engagement with other members. The tip can be positioned to crimp the wire. As a result, reliability and workability can be improved.

According to the second aspect of the present invention, the stopper restricts the insertion of the leading end of the wire of the electric wire to be inserted into the crimping portion on the side of the engaging portion near the disposed crimping portion. It can be positioned in front of the position where the flexible portion of is engaged. Therefore, at the time of crimping work, by simply inserting the leading end of the electric wire into the crimping portion until it comes into contact with the stopper, the conducting wire of the electric wire can be crimped to a position that does not hinder the natural return of the bending portion of the engaging member.

[Brief description of the drawings]

FIG. 1 is a diagram showing an overall configuration of an embodiment of a crimp terminal according to the present invention, (a) is a plan view thereof, and (b) is a side view thereof.

FIG. 2 is a diagram showing a state when the wire is crimped and is a perspective view thereof.

FIG. 3 is a diagram showing a main part thereof, and is a partially enlarged cross-sectional view of the state diagram shown in FIG. 2.

FIG. 4 is a view for explaining the insertion into the inserted member,
(A) is a partial sectional view before insertion, (b) is a partial sectional view after insertion.

FIG. 5 is a diagram showing an overall configuration of the conventional example and is a perspective view thereof.

6A and 6B are diagrams illustrating insertion into a member to be inserted in the conventional example, in which FIG. 6A is a partial cross-sectional view before insertion, and FIG. 6B is a partial cross-sectional view after insertion.

[Explanation of symbols]

 1 Wire 2 Conductor 3 Crimping part 4 Terminal part 5 Recess (engaging part) 6 Connector (engaging member) 7 Lock part (flexing part) 10 Crimping terminal 11 Rib (stopper)

Claims (2)

[Claims] 1. A crimp terminal having a crimping portion for crimping a conductor of an electric wire which is cut off and inserted, and a terminal portion which is connected to an external connecting member, the electric wire being inserted into the crimping portion. A crimp terminal provided with a stopper that abuts on a tip of a conductor and limits the insertion. 2. A stopper having an engaging portion for allowing the flexible portion of the engaging member, which is deflected by the terminal portion when inserted into another engaging member, to spontaneously return and engaging with the flexible portion, The crimp terminal according to claim 1, wherein the crimp terminal is disposed near the crimp portion on the side of the engaging portion.