JPS5856470B2 - How to attach lug terminals to plugs, etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lug terminal attachment method for attaching a lug terminal to the rear end side of the plug when assembling it into a plug used for light electrical equipment, etc. The lug terminal can be securely attached to the plug. The purpose of this is to make it easy to install while being insulated.

In this invention to achieve this object, the terminal part formed at the rear end of the main body is formed in the shape of a shaft rod and extends rearward, and the outer periphery of the terminal part is coated concentrically with resin. At the same time, a groove-like cut groove along the circumferential direction is cut into the resin coating part so that the circumferential surface of the rod-shaped terminal part, which is the core of the coating part, is approximately the width of the cut groove. The proximal end of the lug terminal, which is formed to an exposed depth and is formed separately, is formed into a ring-shaped fitting body with an opening in a part of the circumference, and the fitting body is inserted through the opening. This is characterized in that the lug terminal is attached by fitting along the cut groove and fitting onto the outer periphery of the terminal portion.

To explain the embodiment in detail based on the drawings, reference numeral 1 denotes the main body of a coaxial plug A assembled into a multipolar structure, and in this embodiment, the leading tip 2 and the sleeve 3 on the front half side are used as inner terminals, Further, the sleeve 4 on the rear half side is configured for three poles as a ground terminal.

A rod-shaped terminal portion 20.30 is connected to the leading tip 2, which serves as the inner terminal, and the sleeve 3, which is on the first half side, and the rear end of the valley is inserted into the sleeve 4, which is on the second half side, and which serves as the ground terminal. The terminal part 20 at the center is passed through and sequentially extended toward the rear (to the right in Figure 3) so that the terminal part 20 at the center is the longest, and a resin material is injected between them to serve as an insulating material, and the whole is covered with resin. It is formed into a mold and assembled into three poles having a concentric cross section with the terminal portion 20 as the center.

5.5 is a cut groove provided in the covering portion 6 which is the rear core.

The cut grooves 5, 5 are formed in the covering part 6 so that the peripheral surfaces of the terminal part 20 of the chip 2 and the terminal part 300 of the sleeve 3 are exposed, respectively.
A groove is formed along the circumferential direction at a desired depth, and the cutting direction of each groove 5, 5 is opposed to each other, so that the grooves 5, 5 are formed in the front and rear (second
The lug terminals 7, 7 attached to the notched grooves 5, 5 are arranged in the left-right direction in the figure), and are designed so that the lug terminals 7, 7 attached to the cut grooves 5, 5 do not overlap.

The lug terminal 7 is formed by press-molding a metal plate material into an elongated strip-like soldering part 70 to which the cord wire 80 is soldered, and a mounting seat plate that stands up at right angles from the base end of the soldering part 700. The fitting body 71 has a ring shape with an opening partially in the circumferential direction when a metal plate is press-molded.

The inner diameter of the fitting body 71 is the same as or slightly smaller than the diameter of each of the terminal parts 20 and 300, and has a diameter that allows for tight fitting.
As shown in the figure, a small-diameter fitting body 71 is used as the lug terminal 7 for the chip 2.

Further, as shown in FIG. 5, a fitting body 71 having a large diameter is separately made to be used as the lug terminal 7 for the front sleeve 3.

Reference numeral 9 denotes a hugging lug 9 connected to the sleeve 4 on the rear half side, which serves as a ground terminal.The connecting part 90 of the holding lug 9 is brought into contact with the contact surface 40 of the covering part 6 where a part of the sleeve 4 is exposed, and the body color a is applied. It is attached by caulking the tip 41affi of the mounting part 41 to be screwed together.

The body collar a, by screwing into the mounting portion 41, connects the cord wire 80 and ground wire 81 of the cord 8 to the soldering portion 70 of the lug terminal 7 and the lug 9 as shown in FIG. It has the function of covering the latter half of the coaxial plug A soldered to the soldered portion 91, and the function of restricting the movement of the lug terminals 7, 7 from being pulled out of the fitting body 71.

Next, to explain the operation, in order to attach the separately formed lug terminals 7, 7 to the respective notches 5, 5 of the coaxial plug A assembled for three poles, the lug terminals 7, 7 are attached. , 7 so that the soldering portions 70, 70 thereof are parallel to the axial direction and the openings of the fitting bodies 71, 71 are aligned with the cut grooves 5, as shown in FIG.
, 5, and the fitted body 71
．． 71 is forcibly pushed along the guide grooves 5, 5, and is installed in a state where it is fitted and clamped in a state perpendicular to the axial direction.

Generally, when attaching a lug terminal to a coaxial plug, each terminal part 20, 30 is exposed, and the rear end is caulked or press-fitted while interposing an insulating material. is extremely troublesome, and
There were problems such as excessive loads being applied to each terminal, but
According to this invention, the terminal portion 20° 30 formed in the rear half of the main body portion 1 is formed in the shape of a rod and extends rearwardly, and the outer periphery of the terminal portion 20° 30 is coated and molded concentrically with resin, and the resin is A groove-shaped cut groove 5.5'Y along the circumferential direction is formed in the covering part 6 of
The rod-shaped circumferential surface of the covering part 6 is formed at a depth that is almost exposed by the width of the cut grooves 5, 5, and the terminal parts 20 and 30 are reliably insulated. Make it a recessed type,
A ring-shaped fitting body 71VC with an opening in a part of the circumferential direction is formed at the base end of the lug terminal 70 formed separately, and the fitting body 71 is fitted along the cut grooves 5, 5. Since it is designed to be installed by clamping it, it can be installed in a securely insulated state, and it is also easy to install by aligning the opening of the lug terminal fitting body with the cut groove and fitting it. Since it is only a simple operation, it is possible to quickly assemble without putting an unreasonable load on the valley terminal.

[Brief explanation of the drawing]

Figure 1 is a side view of a coaxial plug embodying this invention;
The figure is a partially cutaway side view of the coaxial plug with the lug terminal removed.
Figure 3 is a cross-sectional view of the coaxial plug before resin molding, Figures 4 and 5 are perspective views of each lug terminal for the tip and sleeve,
6 is a sectional view taken along the line M-Xt in FIG. 1, and FIG. 7 is a sectional view taken along the line ■-■ in FIG. Explanation of drawing symbols, A...Coaxial plaque-11...
... Main body part as above, 2 ... Chip, 3, 4
・・・・・・First half side and second half side sleeves, 5・・・・・・
- Cut groove, 6...Resin coating, 7...
・Lug terminal, 9...Hugging lug, 20...
・Terminal part of the chip, 30...Terminal part of the sleeve on the first half side, TO......The soldered part of the lug terminal,
71... Fitted body same as above.

Claims (1)

[Claims] 1. The terminal section formed at the rear end of the main body is formed in the shape of a rod and extends rearward, and the outer periphery of the terminal section is coated and molded concentrically with resin, and the resin coating section is coated with resin in the circumferential direction. A groove-like cut groove along the axis is formed to a depth such that the peripheral surface of the rod-shaped terminal portion, which is the core of the covering portion, is almost exposed by the width of the cut groove, and is formed separately. The base end of the lug terminal to be installed is formed into a ring-shaped fitting body with an opening in a part of the circumference, and the fitting body is fitted along the cut groove through the opening to form the terminal part. A method for attaching a lug terminal to a plug, etc., characterized in that the lug terminal is attached by fitting the lug terminal to the outer periphery of the plug.