JPH03690Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a receptacle as a socket to be connected to a plug having a pin guide.

[Prior Art] Conventional receptacles of this type include an insulating base,
It is known that the contact mounted on this insulating base and the electric wire connected to the electric wire connection part of this contact are integrally covered and fixed by molding, but the molded body is generally thin. As a result, there was a drawback that "sink marks" where the thick portions were depressed during molding were produced, which was unfavorable in terms of appearance. To solve this problem, the molded body is covered with a soft molded body, and the pin guide of the plug is fitted between the inner wall of the soft molded body on the plug connection side and the insulating base or the outer wall of the hard molded body. It is known that a guide groove is formed for mating.

[Problems to be solved by the invention] The above-mentioned soft molded body covers the following:
Although the appearance defect of visible "sink" has been solved, the guide groove for fitting the pin guide of the plug is formed of a soft molded body, so the guide groove is easily crushed and the pin guide of the plug is There was a problem with not being able to enter.

This idea was created in view of the problems mentioned above.
It is an object of the present invention to provide a receptacle that has no defects in appearance and in which a guide groove for fitting a pin guide of a plug does not collapse.

[Means for Solving the Problems] The present invention provides a hard molded body that integrally fixes an insulating base, a contact, and an electric wire connected to the electric wire connection part of this contact by molding. The plug is characterized in that a guide groove for fitting the pin guide of the plug is formed on the connection side, and the hard molded body is covered with a soft molded body.

[Embodiment] An embodiment of the present invention will be described based on the drawings from FIG. 1 to FIG. 6.

1 shows a partially cutaway front view of a receptacle 1 according to the present invention, FIG. 2 shows a left side view of FIG. 1, FIG. FIG. 6 shows a perspective view of the receptacle 1.

In these figures, 2 and 3 are first and second insulating bases made of plastic insulating material, and these first and second insulating bases 2 and 3 are formed as shown in FIG. A circular hole groove 4 and a U-shaped groove 5 formed on the opposite side of the plug connection side of the first insulating base 2, a cylindrical projection 6 and a square projection 7 formed on the second insulating base 3,
7... are constructed so that they fit together and become integrated. A pin guide 9 of the plug 8 shown in FIG. 7 is provided on the outer surface of the plug connection side of the first insulating base 2.
Grooves 11a, 11b, and 11c are formed to fit with the protrusions 10a, 10b, and 10c, respectively.

Reference numeral 12 denotes a contact, which is attached to the first and second insulating bases 2 and 3 as follows. That is, first, the contact 12 is press-fitted into the contact receiving hole 13 of the first insulating base 2, and its leg portion passes through the hole 13a in the vicinity of the U-shaped groove 5 of the first insulating base 2. The legs of the contact 12 are then bent outward as shown in FIGS. 4 and 5, and then the second
The insulating base 3 is moved in the direction of the arrow shown in FIG. 4 to fit into the first insulating base 2, and then bent at a right angle along the outer surface of the square projection 7 of the second insulating base 3.

Core wires 15, 15, . . . of a cable 14 as an electric wire are fixed to the legs of the contacts 12, 12, . . . with solder 16, and a retaining fitting 17 is fixed to the cable 14.

The first and second insulating bases 2, 3, contacts 12, 12... and cable 14 configured as described above are fixed in a predetermined mold and then covered with polypropylene molding to form an integral body. A hard molded body 18 is constructed. At this time,
A stepped groove 20 formed in two steps along the plug insertion direction is provided on the inner wall of the hard molded body 18 on the plug connection side.
A cylindrical guide groove 19 is formed by the lower part of the plug 8 and the outer wall of the first insulating base 2, and the cylindrical pin guide 9 of the plug 8 is fitted into this guide groove 19. has been done. In addition, the second
The rectangular protrusion 7 of the insulating base 3 allows the molding resin liquid (polypropylene) to flow into the contact housing hole 1 during molding of the hard molded body 18.
3 to the contact 12 side.

The hard molded body 18 and the cable 14 are covered with a soft molded body 21 having a predetermined shape by molding vinyl chloride.
At this time, the plug connection side of the soft molded body 21 is folded back and locked to the upper part of the stepped groove 20 of the hard molded body 18, and the folded surface is aligned with the outer wall surface of the guide groove 19. configured. 22 and 23 are fitting marks formed on the receptacle 1 and the plug 8, respectively. If the receptacle 1 and the plug 8 are connected with these marks 22 and 23 facing each other, the pin guide 9 will fit into the guide groove 19. are fitted, and the pins 24 of the plug 8 are connected to the contacts 12 of the receptacle 1.
are in elastic contact with each other, and the two are electrically connected.

[Effects of the invention] As described above, the receptacle according to the invention has a hard molded body to form a guide groove for fitting the pin guide of the plug, and a soft molded body to cover the hard molded body. Therefore, it does not have the disadvantages of conventional products such as the guide groove being crushed and the plug not being able to be inserted.
If even a part of the hard molded body is exposed, it will cause sink.
However, in this invention, the coating is applied from the position that coincides with the outer wall surface of the guide groove through the entire outer periphery of the hard molded body to the cable outlet at the other end, so no "sink" appears on the outside and there are no defects in appearance. do not have. That is, the connection with the plug is reliable and the appearance is beautiful.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of the receptacle according to the present invention; Fig. 2 is a partially cutaway front view, Fig. 2 is a left side view of Fig. 1, and Fig. 3 is a cross section taken along line A-A in Fig. 1. 4 is an enlarged perspective view showing the first and second insulating bases in FIG. 1, FIG. 5 is a plan view showing the second insulating base in FIG. 4, and FIG. 6 is a receptacle according to the present invention. FIG. 7 is a perspective view showing the plug. 1... Receptacle, 2, 3... Insulating base, 8
... plug, 9 ... pin guide, 12 ... contact, 14 ... cable (electric wire), 18 ... hard molded body, 19 ... guide groove, 21 ... soft molded body.

Claims (1)

[Scope of utility model registration request] An insulating base, a contact mounted on this insulating base, and an electric wire connected to the electric wire connection part of this contact, and integrally fixing these,
It consists of a hard molded body molded to form a guide groove for fitting the pin guide of the plug on the plug connection side, and a soft molded body to cover this hard molded body. The receptacle is formed by folding back around the guide groove of the hard molded body and covering the entire outer periphery of the hard molded body from a position that coincides with the outer wall surface of the guide groove to the cable lead-out portion at the other end.