JPS6240535Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a contact that is connected to a pin of a plug-side connector.

Generally, connectors used in electronic devices include a plug-side connector with multiple pins that serve as connectors, and a plurality of internal contacts that hold each pin of the plug-side connector to maintain the connection state. A connector is often used in which a set of accommodated socket-side connectors is removably connected to each other.

By the way, in such a connector, the contact A in particular is, for example, as shown in FIG.
A lead wire (not shown) is attached to the rear end of the contact base a.
A pair of crimp pieces b, b for connecting the conductor parts of
and a pair of cord support parts c, c for fixing the covering part of the lead wire, and a pair of support pieces d, d extending from the front end of the contact base a facing each other. Further, protrusions e, e are formed at right angles to the insertion direction of the pins f of the connector on the opposing surfaces thereof, and the protrusions e,
Generally, pins f of the plug side connector can be inserted between e and e.

However, in such a contact A, since the protrusions e and e are formed perpendicular to the insertion direction of the pin f of the connector, it is difficult to insert the pin f between the protrusions e and e. At this time, the end edges of both sides of the pin f and the surfaces of the protrusions e and e come into contact with each other in a linear manner, and the insertion resistance becomes extremely large, making it impossible to insert the pin f without requiring considerable force. A problem had occurred. Furthermore, even though the pin f was inserted with great effort, there was a drawback that the pin f was not firmly inserted between the protrusions e and e. This is because the protrusions e and e are the support piece d,
Since the total length W cannot be made very long due to the height h of d, the contact area between the protrusions e and e and the pin f is insufficient, and the mutual frictional force does not exert much force on each other. This is because there is a fateful factor.

For this reason, generally, the support pieces d and d are bent considerably inwardly to force the pin f between the protrusions e and e, but on the other hand, If this is done, it becomes obvious that the opposing spacing between the protrusions e and e becomes even more narrow, making it extremely difficult to insert the pin e.

The present invention was devised in view of these circumstances, and its purpose is to make it possible to very easily insert the pin of the plug-side connector between the protruding stripes of the contact, and to make it possible to easily insert the pins of the plug-side connector between the protruding stripes and the pins. The insertion state also provides a contact that can be inserted more firmly than conventional ones.

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, 1 is a housing of a socket-side connector integrally molded from synthetic resin or the like, and its interior is partitioned into two small chambers via a partition wall 2.
Contacts 5 are accommodated in each of the small chambers from the rear end side openings 4.

The contacts 5 are obtained by pressing a thin metal plate, and are protruded from the opposing surfaces of a pair of support pieces 7, which extend from both sides of the front end of the contact base 6, facing each other. The strips 8, 8 are integrally formed in an inclined state with respect to the insertion direction of the pin 18, and a pair of crimp pieces for connecting the conductor portion 9b of the lead wire 9 to the rear end of the contact base 6. 10, 10 and the covering portion 9a of the lead wire 9
a pair of cord support parts 11 for fixing the
11 are integrally formed. Note that the protrusions 8, 8 are inclined upwardly to the right with respect to the insertion direction P of the pin 18 of the plug-side connector 3 at an angle θ=30° to 60°, and as shown in FIG. As is clear, from the contact base 6 to the extending end side of each support piece 7, 7, that is, the pin 1
8, the opposing distance between them is gradually reduced in the direction of insertion.

Further, as shown in FIGS. 2 and 3, a claw portion 12 punched out from the contact base 6 is formed on the back surface of the contact base 6, and when the contact 5 is housed in the housing 1, the claw portion 12 engages with a locking portion 13 provided on the housing 1 side to prevent the contact 5 from coming off.

By the way, the housing 1 has a pin insertion hole 15 in its front wall 14, and a boss portion 16 having a rectangular cross section is integrally provided inside the front wall 14 and adjacent to the pin insertion hole 15. ing.

The boss portion 16 connects the contact 5 to the housing 1.
When the contact 5 is housed in the interior, the support pieces 7, 7 of the contact 5 fit into the boss 16, and the contact 5
The support piece 7,
7 is adapted to fit into the boss portion 16.

Further, when the support pieces 7, 7 are fitted into the boss portion 16, the protrusions 8, 8 formed on the opposing surfaces of the support pieces 7, 7 are arranged at positions facing the pin insertion hole 15. It's summery.

On the other hand, 3 indicates a plug side connector, and by inserting the pin 18 which is the connector into the housing 1 through the pin insertion hole 15 of the socket side connector, it is inserted between the protrusions 8 and 8 of the contact 5. The pin 18 can be inserted therein.

However, in such a configuration, especially in the present invention, protrusions 8, 8 are attached to the pin 18 on the opposing surfaces of the pair of support pieces 7, 7 extending from both sides of the front end of the contact base 6, facing each other. Since the pin 18 of the plug-side connector 3 is formed to be inclined with respect to the insertion direction, the pin 18 of the plug-side connector 3 can be inserted very easily between the protrusions 8, 8 of the contact 5. Furthermore, since the protrusions 8, 8 are formed so that the spacing between them gradually decreases in the direction in which the pin 18 is inserted, the contact pressure gradually increases during insertion, and the protrusions 8,
When the pin 18 is inserted between the two holes, the pin 18 can be inserted more firmly than the conventional protrusions e formed at right angles.

That is, in the present invention, since the protrusions 8, 8 are formed in an inclined state with respect to the insertion direction of the pin 18, when inserting the pin 18 of the plug-side connector 3 between the protrusions 8, 8, The lower tip edge of the pin 18 hits the surfaces of the protrusions 8, 8 as a point, compared to the conventional pin f where the tip edges on both sides hit the surfaces of the protrusions e, e as a line. The insertion resistance is significantly reduced and the pin 18 can be inserted much more easily and smoothly.

On the other hand, when the pin 18 of the plug-side connector 3 is inserted between the protrusions 8, 8, the total length H of the protrusions 8, 8 is higher than the total length W of the conventional protrusion e. Although the length is the same, the length can be set longer, and the protrusions 8, 8 are formed by gradually reducing the distance between them as they face in the insertion direction of the pin 18, which makes the plug-side connector 3 The contact friction force between the pin 18 and the protrusions 8, 8 can be increased, so that the pin 1 inserted between the protrusions 8, 8
8 can be inserted more firmly than conventional ones.

Therefore, according to the present invention, it is possible to provide a contact 5 in which the pin 18 of the plug-side connector 3 can be easily inserted, and which can be inserted more firmly than the conventional one in the inserted state.

In the above embodiment, the protrusions 8, 8 are connected to the pins 18.
Although the ridge is formed to be inclined upward to the right with respect to the insertion direction (see Fig. 3 and Fig. 2), the present invention is not necessarily limited to this. The protrusion may be formed to have an upwardly leftward slope, or the protrusion may be formed such that an upwardly leftward slope and a rightwardly upwardly sloped cross each other.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a conventional contact; Figure 2 is a perspective view of a conventional contact;
The figure is a perspective view showing one embodiment of the present invention, and FIG. 3 is a longitudinal sectional side view of the same embodiment. 5...Contact, 6...Contact base, 7
. . . Support piece portion, 8 . . . Projection portion, 18 . . . Pin.

Claims (1)

[Scope of utility model registration request] A pair of supporting pieces extend from both sides of the front end of the contact base facing each other, and the pin is inserted between the supporting pieces. The supporting pieces are provided with a pair of supporting pieces that are inclined with respect to the insertion direction of the pin and are oriented toward the insertion direction. A contact characterized in that each of the protrusions is formed in such a manner that the distance between them is gradually reduced.