JPS6081A - Wiring tool of wire - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention provides an electrical connection element having a U-groove contact portion,
This invention relates to a wiring tool that electrically and mechanically connects electric wires.

[Prior art]

A widely used method is to press-fit an insulated wire or a bare wire (hereinafter simply referred to as wire) into a connecting element having a U-groove contact portion to effect an electrical and mechanical connection. FIG. 1 is a perspective view showing a state of wire connection using a conventional wire connection tool.
A connecting element 3 having, for example, two U-groove contact portions 6α and sb is fixed to the terminal 2 planted on the terminal board 1. The connection of the electric wire 4 to such a connecting element 3 is as follows:
First, the electric wire 4 is stretched above the U-groove contact portions 6α, 3A, and then the wire connection tool 5 provided with the suppressing portion 5α is pressed down in the direction of arrow A.

In the straightening operation using the conventional suppressing type wiring tool shown in FIG. 1, the pressing force directly affects the connecting element 6 or the terminal 2 and terminal board 1 to which the connecting element 3 is fixed. Therefore, in cases where the rigidity of the connecting element 3 itself is weak, or in cases where the fixing force between the terminal 2 and the connecting element 3 is insufficient, it is difficult to perform proper alignment work, and sometimes the connecting element 3
Otherwise, the connecting portion 6c between the terminal 2 and the connecting element 3 may be damaged, and the electrical and mechanical connection reliability will be significantly reduced. Moreover, the connection position of the electric wire 4 to the U-groove contact parts 3α, 3b is required to be connected to a predetermined position of the U-groove contact part in order to obtain a stable connection.
It is difficult to keep the position constant during the full-scale work in the direction of arrow A shown in the figure.

Furthermore, if there is not enough space to mount the connecting element, or if a plurality of terminals 2 are mounted on the terminal board 1 at high density, there will be restrictions on the outer diameter and height of the wiring tool 5, and the workability will also be reduced. It was bad.

[Purpose of the invention]

The present invention was invented in view of the above-mentioned shortcomings of the conventional wiring tools, and it eliminates the spread of press force to parts other than the connecting element, makes the wiring position of the wire constant, and makes the wiring with good workability. The purpose is to provide tools.

[Summary of the invention]

The present invention relates to first and second arm members that move toward and away from each other by manual operation, and a stator that is fixed to or integrally formed with the first arm member, the first and second arm members A leg portion extending in the direction of approach and separation, and a leg portion bent on the leg portion.
A stator including a support portion that supports a lower portion of the groove contact portion, and a terminal that is locked to the second arm member,
Connected to the U-groove contact portion of the connecting element! #! and a connection element configured such that the pressing part is configured to move in the direction of the supporting part by the tangential movement of the second arm member to the first arm member, and the stator The electric wire is press-fitted into the U-groove contact portion so that the connecting element is pinched by the wire connector and the connecting element, thereby limiting the range of the press-fitting force to only the connecting element.

Further, by stopping the tangential movement of the second arm member or the movement of the connector by a stopping part provided on the first arm member or a stopping part provided on the stator, the U
It becomes possible to hold the electric wire in a predetermined position within the groove contact portion.

[Embodiments of the invention]

The present invention will be explained in detail below with reference to the embodiments shown in FIGS. 2 to 5.

FIG. 2 is a perspective view of a first embodiment of a wire connection tool according to the present invention, in which a wire connection function is provided at the tip of a tool such as pliers or nippers. In Fig. 2, 10 is a first arm member, and 11 is a second arm member, which are each pivoted on a shaft 12, and by gripping handles 10α and 11α, the tips of the arm members 10 and 11 are brought close to each other. By loosening the handles 10α, 11α, the tips of the arm members 10, 11 are separated by the restoring force of the leaf spring 13. The restoring force of the leaf spring 13 is
As shown in the partially cutaway view in the center of Figure 2, the first
The protrusion 1oh protruding from the arm member 10 is the second arm member 1.
1, and the separated state shown in FIG. 2 is maintained.

Now, in the present invention, a stator 14 shown in the enlarged perspective view of FIG. 3 is fixed to the tip of the first arm member 1o by welding or the like or is integrally formed therewith. In FIG. 3, 14α is a guide hole for guiding the movement of the connector 15, which will be described later, and 14h is
Legs extending in the direction of approach and separation of the arm members 10 and 11, 1
Reference numeral 4c denotes a support portion that is bent and provided on the leg portion 14b and supports the lower portion of the U-groove contact portions 16cL and 16h of the connection element 16, which will be described later.

Further, a connecting rod 15 shown in the enlarged perspective view of FIG. 4 is locked to a locking rod 11b provided near the tip of the second arm member 11. In FIG. 4, 15α is a locking hole into which the locking rod 11b is inserted, 15h is a cut groove that allows insertion of a connecting element 16, which will be described later, and 15 (- is a sign for connecting the electric wire 4 to the connecting element 16. This is a suppressing portion that presses into the U-groove contact portions 16a, 16.A, and is hollowed out in a semicircular shape in a direction perpendicular to the cutting direction of the cut grooves 15h. The terminal 15 held is inserted into the guide hole 14α of the stator 140, as shown in FIG. ? is held with a gap between it and the upper surface 14d.

Next, the structure of the connecting element 16 and the connection of the electric wire 4 into the U-groove contact portions 16z and 16h of the connecting element 16 will be explained in detail using Figure 5. FIG. 5(a) shows a perspective view before the wire connection work, and FIG. 5<b> shows a perspective view during the wire connection work.

The connecting element 16 includes - by way of example two U-groove contacts 1
6a and 16b, and in the present invention, in particular, the U-groove contact portion 16α.

Below the support part 16b of the stator 14 shown in FIG.
Insertion part 16 having a gap length long enough to insert 4C
c is provided.

Now, the wire connection work using the connection tool of the present invention is performed as follows.

First, after temporarily fixing the electric wire 4 to the U-groove contact parts 16α and 16b of the connecting element 16, as shown in FIG. , operate the handles 10σ and 11a of the wiring tool.

As a result, the connector 15 is pushed by the lower surface of the distal end side of the arm member 11 of the star 2 and descends in the direction of the arrow B, and the notched grooves 15b, 15h
A part of the connecting element 16 is inserted into the handle, and the position of the connecting element 16 in the right direction in the drawing is restricted, and the semicircular pressing part 15 (? is in contact with the electric wire 4. When 10α and 11a are applied, the electric wire 4 is pressed against the pressing part 15.
C, the wire advances to the center of the U-groove contact portions 16α, 16h, and is press-fitted to a stopping position where the lower end 15cL of the wire connector 15 contacts the upper surface 14d of the support portion 14c, and the wire connection work is completed. After that, when the handles 10α, 11α are loosened, the connecting element 15 is released from the connecting element 16 by the restoring force of the plate 13.

As described above, according to the present invention, the operating force of the connection tool is applied to a part of the connection element 16, that is, the insertion portion 16C in FIG. 5(α).
Since it extends only upward, there is no risk of breaking the fixed part between the connecting element 3 and the terminal 2 as shown in Fig. 1, or the fixed part between the terminal 2 and the terminal board 1, and the connection reliability is greatly improved. It is.

Furthermore, the connection position of the electric wire 4 to the connection element 16 is from the lower end 15cL where the movement of the connection element 15 is restrained to the pressing part 15.
Insert portion 16C of connecting element 16 corresponding to dimension H up to C
U groove contact part 16α from the soil surface.

The length is uniformly determined at a position up to 16h, and the electric wire 4 is always connected to the same position of the U-groove contact portion.

FIG. 6 shows an example of application of the present invention, and is a partial perspective view of a terminal board of a rack installed in a telephone exchange. The plurality of terminals 2 implanted in the terminal board 1 were originally shaped for soldering αη and were soldered, but in recent years, efforts have been made to streamline the re-lining of insulated wires 18 called jumper wires. In order to do this, a connecting element 16 as shown in FIG. 5 is fixed from above the terminal 2, and an insulated wire is electrically connected to the connecting terminal 16 by destroying the insulating layer using the U-groove contact part. The method is changing to the connection method. In such a case, if the present invention is used, the connection terminal 16.
Terminal 2. This is particularly effective as it protects the terminal board.

In the embodiment shown in FIG. 5, movement of the connector 15 is inhibited by contact between the lower end 15d of the connector 150 and the upper surface 14d of the support portion 14C of the stator 14. For example, a method in which a projection is provided near the locking hole 15α of the connector 15 shown in FIG. 4 and brought into contact with the periphery of the guide hole 14α shown in FIG. Numerous application examples may be considered, such as providing a protrusion on the inner surface of the second arm member 11 or bringing the arm members 10 and 11 into contact with each other.

In addition, although the above embodiment illustrated the pliers type,
Of course, the same effect can be obtained even if the tweezers type is used for connecting electric wires that do not require pressure force.

In the above embodiment, one connection terminal 16 is provided with two U-groove contact portions 16α and 16b. Of course, it may be provided with one or six or more U-groove contact portions.

〔Effect of the invention〕

As explained in detail above, according to the present invention, the wiring operation force of the wiring tool is applied only to a limited part of the connecting element, so there is a risk that the connecting element, the terminal connecting it, and furthermore the terminal board will be destroyed. connection reliability is greatly improved. Further, the connection position of the electric wire to the U-groove contact portion is always constant, and the electric wire can be connected at the most favorable position both electrically and mechanically. Furthermore, since the connection element has a cut groove that allows insertion of the connection element, the relative position of the connection tool and the connection element is determined, improving work efficiency.Furthermore, since both sides of the wire are pressed against the connection element, the connection element can be inserted easily. Even major work can be done extremely smoothly.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a state of wire connection using a conventional wire connection tool, FIG. 2 is a perspective view showing an embodiment of the wire connection tool according to the present invention, and FIG. 3 is a perspective view showing the wire connection tool shown in FIG. Fig. 4 is a perspective view of the stator used, and Fig. 5 is a perspective view of the connector.
Figures <a) and <b) are perspective views showing a wiring operation using the wiring tool according to the present invention, and FIG. 6 is a partial perspective view of a suitable terminal board to which the wiring tool according to the present invention is applied. 4: Electric wire 10: First arm member 11: Second arm member 11b Second locking rod 14: Stator 14α: Guide hole 14h = Leg portion 14C: Support portion 15: Terminal 15α: Locking hole 15b: Cut Insertion groove 15C: Suppressing part 16: Connection element 16cL, 16b: U-groove contact part 16C: Insertion part) 1 verbal abuse 2 Fig. 10゜゜゜Fig. 3 Fig. 4 Fig. 5 Peripheral crime (:) Continuation of unillustrated page 1 ■ Applicant NEC Co., Ltd. 5-33-1 Shiba, Minato-ku, Tokyo @ Applicant Tokyo End - 3865 Izumi-cho, Totsuka-ku, Yokohama City

Claims (1)

[Claims] 1. A wiring tool for connecting an electric wire to a connecting element having a U-groove contact portion, comprising first and second arm members that move toward and away from each other by manual operation; a stator fixed to or integrally formed with the first arm member, the stator having a leg portion extending in the direction in which the first and second arm members approach and separate; and a stator bent on the leg portion; a stator including a support portion that supports a lower portion of the U-groove contact portion; and a wire connector that is locked to the second arm member, the wire connector being connected to the U-groove contact portion of the connecting element. An electric wire comprising at least a connecting member having a pressing part and configured such that the pressing part moves in the direction of the supporting part by the tangential movement of the second arm member to the first arm member. Wiring tool. 2 The suppression portion of the connection element is provided with a cut groove that allows insertion of the connection element during the movement process of the connection element, and the pair of suppression parts facing the cut groove allows the connection element to be inserted into the connection element. The electric wire connection tool according to claim 1, characterized in that the electric wire connection tool is configured to press two places on the electric wire that is straddled. 3. The tangential movement of the second arm member or the movement of the connector is configured to be stopped by a stopping part provided on the first arm member or a stopping part provided on the stator. An electric wire connection tool according to claim 1, characterized in that: