JPH048624Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" This invention relates to a connector in which contacts are press-fitted and held in a connector body, and particularly relates to a holding structure for the contacts.

"Prior Art" In a conventional connector, as shown in FIGS. 5 and 6, for example, a connector main body 11 is constructed as a molded product made of synthetic resin, and an opening 12 into which a mating connector is inserted is formed on the front surface of the connector main body 11. Connector body 11
A contact fixing hole 14 is formed through the back plate 13 of the contact fixing hole 14, and a contact 15 is formed in the contact fixing hole 14.
is inserted from the back side, and its fixing portion 16 is press-fitted and held. The contact body 17 at one end of the contact 15 is located inside the connector body 11 facing outside through the opening 12, and the terminal 18 at the other end is located inside the connector body 11.
It protrudes more outward. The fixing part 16 is located between the contact body 17 and the terminal 18, and a pair of right triangular pull-out direction stoppers 19a and 19b are integrally formed on both sides of the contact body 17 side. A pair of insertion direction stoppers 21a and 21b are integrally protruded from both sides at approximately right angles.

As shown in FIGS. 7 and 9, the contact fixing hole 14 has a shape in which the fixing part 16 is almost fitted, that is, the enlarged parts 14a and 14b into which the insertion direction stoppers 21a and 21b are inserted are on the back side. Both sides are enlarged. As shown in FIG. 8, both end surfaces 22 and 23 of the contact fixing hole 14 are sandwiched between the pull-out direction stoppers 19a and 19b and the insertion direction stoppers 21a and 21b, so that the contact 15 is fixed to the connector body 11.

As shown in FIG. 7, the width a of the contact fixing hole 14 and the width b of the contact body 17 are approximately equal, and the distance c between the pull-out direction stoppers 19a and 19b is larger than the width a. This contact 1
5 is press-fitted into the contact fixing hole 14, both inner surfaces of the contact fixing hole 14 are scraped by the pull-out direction stoppers 19a and 19b, and the width becomes a', which is larger than a. Connector body 11
Since these are made of a slightly elastic thermoplastic resin, the tips of the pull-out stoppers 19a and 19b that have passed through the contact fixing hole 14 engage with the end surface 22 of the hole 14.

Note that the height d of the contact fixing hole 14 (Fig. 9)
In the past, d was slightly larger than the thickness of the contact 15, and the heights of the enlarged portions 14a and 14b were also set to the same value d.

"Problems to be Solved by the Invention" As shown in FIG. 8, by press-fitting the contact 15, the width of the contact fixing hole 14 is expanded to a', so both stoppers 19a in the contact fixing part 16 are , 19b and 21a, 21b
Holes 24 and 25 are formed between the side surfaces between the contact fixing holes 14 and the inner surfaces of the contact fixing holes 14, and the holding of the contacts 15 becomes weaker accordingly. Also contact 1
5, there was a risk that it would loose in its holding in the width direction (arrow 26).

``Means for Solving the Problems'' According to this invention, reinforcing portions are integrally formed on both side surfaces of the fixing portion on the side of the stopper in the insertion direction so as to maintain a distance from the stopper in the pull-out direction of the contact. The side surfaces of these reinforcing portions are in contact with both inner surfaces of the contact fixing hole. Because of the presence of the reinforcing portion, the contact is held in the contact fixing hole without wobbling in the width direction, and its holding strength is also stronger than in the past.

``Embodiment'' FIGS. 1 and 2 show the main parts of this invention, and parts corresponding to those in FIGS. 7 and 8 are given the same numbers.

In this invention, the fixed part 1 of the contact 15 is
6, reinforcing portions 27 and 28 are integrally formed on the side of the insertion direction stoppers 21a and 21b so as to protrude from the side surface while maintaining a distance from the withdrawal direction stoppers 19a and 19b, that is, without contacting (continuing with) them. In this example, the reinforcing parts 27 and 28 are in contact (continuously) with the insertion direction stoppers 21a and 21b.
It is formed. The distance e between the reinforcing parts 27 and 28 is
The distance c between the pull-out direction stoppers 19a and 19b is the same as or slightly larger than the distance c.

This contact 15 is connected to the contact fixing hole 14.
When the contact is press-fitted into the contact fixing hole 14, the contact fixing hole 14 is cut by the pull-out direction stoppers 19a and 19b as explained with reference to FIG. 8, and its width increases to a'. The reinforcing parts 27, 28 are inserted into the loose parts.
The side surfaces of the contact fixing hole 14 come into contact with or press against both enlarged inner surfaces of the contact fixing hole 14. Therefore contact 1
5 is held without wobbling in the width direction (arrow 26), and its holding strength is also stronger than that of the conventional one.

Note that the reinforcing parts 27 and 28 are the contact fixing holes 1.
It is preferable that the reinforcing parts 27, 28 be press-fitted into the pull-out direction stoppers 19a, 1.
The surface on the 9b side is preferably a tapered surface.

Furthermore, as shown in FIGS. 3 and 4, the contact fixing hole 14 has a height d slightly larger than the thickness of the contact 15 to facilitate insertion of the contact, and the height f of the enlarged portions 14a and 14b. is slightly smaller than the thickness of the contact 15, and the enlarged portions 14a,
The contact 15 can be prevented from wobbling in the thickness direction at the portion 14b, and can be easily press-fitted.

In the above, a flat contact 15 is used, but a square contact may also be used. Also, a socket type contact may be used instead of a plug type contact.

"Effects of the invention" As described above, according to this invention, by integrally providing the reinforcing parts 27 and 28 in the fixed part of the contact, the fixing strength of the contact is stronger than that of the conventional one, and the width of the contact is reduced. You can get the connector you want.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of the main part of this invention, showing the state before the contact is inserted into the contact fixing hole, and Figure 2 is a cross-sectional view showing the contact in Figure 1 after it is inserted and fixed into the contact fixing hole. Figure 3 is a rear view showing a modified example of the contact fixing hole, Figure 4 is a sectional view taken along the - line in Figure 3,
The figure is an exploded perspective view of the connector body and the contacts, Figure 6 is a perspective view of Figure 5 seen from the opposite direction, and Figure 7 is the state of the contacts and contact fixing holes in a conventional connector before they are inserted. FIG. 8 is a view showing the device shown in FIG. 7 in an inserted state, and FIG. 9 is a rear view of the contact fixing hole.

Claims (1)

[Claim for Utility Model Registration] A contact fixing part is inserted into a contact fixing hole of a connector body made of an elastic material, and both end surfaces of the contact fixing hole are
In a connector whose contacts are fixed to the connector main body by being sandwiched between a pair of right-angled triangular pull-out direction stoppers integrally formed with the fixing part and a pair of insertion direction stoppers, the connector is spaced apart from the pull-out direction stoppers. reinforcing parts are integrally formed on both side surfaces of the fixing part on the stopper side in the insertion direction, and the side surfaces of these reinforcing parts are in contact with both inner surfaces of the contact fixing hole. connector.