JPS6340852Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a protective cap for a wire terminal connected to a pole terminal of an alternator or the like.

Conventionally, a protective cap that is placed over a wire terminal connected to a pole terminal of an alternator or the like has a structure as shown in FIG.

That is, 1 is a main body of an alternator that supplies current to a battery and a load mounted on a vehicle, and a bolt-shaped pole terminal (external conduction terminal) 1a is provided at the base of the main body 1. 2 is a circular electric wire terminal for extracting current from the pole terminal 1a, and has a circular electric contact portion 2a.
3 is a tightening nut thereof. Reference numeral 4 denotes a protective cap made of rubber that prevents the wire terminal 2 from coming into contact with the outside and is waterproof, and is composed of a main body portion 4a and a wire guide portion 4b.

When assembling the electric wire terminal 2 and cap 4, the following steps should be taken: 1. First, the insulation of the electric wire w is stripped to expose the conductor, and the conductor is crimped to the wire terminal 2. 2. Pass the terminal 2 through the wire guide portion 4b of the cap 4, and shift it backward so that the main body portion 4a does not cover the electrical contact portion 2a. 3. Insert the electrical contact portion 2a of the wire terminal 2 into the pole terminal 1a. 4. Tightening the terminal 2 with the nut 3, 5. Moving the cap 4 forward and covering the pole terminal 1a, the wire terminal 2, and the nut 3.The disadvantage is that the assembly requires a large number of man-hours and is time-consuming. .

In addition, since the wire guide portion 4b of the cap 4 is small, it is necessary to push it apart to pass the wire terminal 2 through it, which is cumbersome, and the wire guide portion 4b may be torn, and in extreme cases, the cap may be damaged. There were drawbacks such as it coming off and shooting.

This invention has been made in order to eliminate the above-mentioned drawbacks, and its object is to provide a protective cap for an electric wire terminal which can be securely attached to the electric wire terminal, i.e., the connection between the pole terminal and the electric wire terminal, with simple operations.

Hereinafter, this invention will be explained based on the drawings. In FIGS. 2 and 3, reference numeral 5 indicates a protective cap made of synthetic resin such as polyethylene or polypropylene. A pair of opposing split-shaped locking arms 7 are provided at the top.
A cylindrical pole terminal cover 8 is provided on the outer periphery of the locking arm 7, and a wire terminal cover 9 is provided continuously on one side of the cap body 6.

The split locking arm 7 vertically extends the peripheral wall of the truncated conical cylinder.
By providing the slit portion 7a so as to separate the portion, the slit portion 7a is formed to have flexibility. The pole terminal cover 8 is set high so that it is located above the pole terminal when the cap 5 is fitted onto the pole terminal. Further, the wire terminal cover 9 is formed as an inverted U-shaped gutter body communicating with the cap body 6, and the lower end edge of the opposing side wall 9a has a claw portion 9b facing inward for receiving the wire terminal and the wire. Slit 9c, 9
It is provided so as to protrude so as to be flexible through the hole c.

In the above configuration, in order to assemble the cap 5 to the wire terminal in the same way as in the case of Fig. 1, a. First, strip the wire to expose the conductor;
Tighten the wire terminal 2 to the terminal 1a as shown in Figure 3.
Insert the terminal 2 into the pole terminal 1a, tighten and fix the terminal 2 with the nut 3, insert the cap body 6 of the cap 5 into the pole terminal 1a, and place the wire terminal cover 9 over the wire crimping part 2b. This eliminates the troublesome process of shifting the cap 4 in FIG. 1 to the front and back of the electric wire w as in the conventional method.

Then, when the second cap body 6 is inserted into the pole terminal 1a and pressed, the split locking arms 7, 7 are inserted into the pole terminal 1a.
The cap body 6 is engaged in a latch-like manner so that the cap body 6 cannot be removed. In addition, the wire terminal cover 9 is attached to the wire crimping portion 2b.
When pressed toward , the claw portion 9b bends and the caulking portion 2b is housed within the cover 9. In this way, the cap 5 can be easily and reliably attached so as to cover the connecting portion between the pole terminal 1a and the wire terminal 2.

Note that when removing the cap 5, first forcefully lift the wire terminal cover 9 to release the claw portion 9b.
If the cap main body 6 is rotated around the pole terminal 1a while the cap body 6 is tilted, it can be easily removed by being guided by the threads.

FIG. 4 shows another embodiment of this invention, in which a vertical slit 9d is provided in the opposite side wall 9a at the base end of the wire terminal cover 9, and a hinge portion 9f is provided in the upper wall 9e of the cover 9. , the cover 9 is configured to be openable and closable with respect to the cap body 6. In this case, it becomes easier to remove the cover 9, and since there is no need to tilt the entire cap, an uneven load is not applied to the split locking arm 7, and rotation becomes easier. Become.

As explained above, this device is provided with a flexible split locking arm that engages with the pole terminal at the center of the upper part of the cylindrical cap body, and a pole terminal cover on the outer periphery of the locking arm. Since the electric wire terminal cover is provided on one side of the cap body and communicates with the cap body, the electric wire terminal can be easily and reliably attached to the electric wire terminal.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a conventional example, Fig. 2 is a partially cutaway perspective view showing an embodiment of this invention, Fig. 3 is a sectional view showing how it is attached to the pole terminal, and Fig. 4 is an illustration of this invention. FIG. 7 is a sectional view showing another embodiment. 5...Protective cap, 6...Cap body, 7
...split locking arm, 8...pole terminal cover, 9...wire terminal cover.

Claims (1)

[Scope of utility model registration request] A cap made of synthetic resin that protects the electric wire terminal attached to the screwed terminal of an alternator, etc., and a split locking arm that is flexible and engages with the terminal at the upper center of the cylindrical cap body. A protective cap for a wire terminal, characterized in that a pole terminal cover is provided on the outer periphery of the split locking arm, and a wire terminal cover that communicates with the cap body is provided on one side of the cap body.