JPH0741100Y2 - Socket contact - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a connector socket for connecting and disconnecting an electric circuit between electronic devices.

[Background of the Invention] The present invention relates to a socket contact which is manufactured by pressing a metal thin plate or molding by a forming machine.

In many of these types of socket contacts, a spring part that contacts the conductor pin of the male contact is formed inside and the periphery is surrounded by a side wall part that extends in the longitudinal direction, and the spring part is protected from the outside. It's being used.

In particular, this type is for discrete wires, for example, and is useful as a socket contact of a connector for connecting an electric circuit of an electric component of an automobile.

By the way, in this type of conventional socket contact, a part of the contact plate is formed in the spring part that contacts the conductor pin, and in order to protect this contact part from the outside, both sides of the spring part are bent and To surround the spring part.

In the conventional socket contact described above,
The back side of the spring part is not surrounded, and the spring part cannot be completely protected from the four rounds. Therefore, when inserting the pin contact, an unexpected obstacle such that the pin gets into the back side of the spring part. Was imitated.

As a solution to these disadvantages, utility model registration application 157705 (published utility model application, Hei 2-77876)
No.) discloses a one-piece socket contact in which a spring is completely surrounded and protected by a plate portion.

By the way, in electrical or electronic equipment, in connector housings that allow multiple contacts to be inserted, the position of the pin contact insertion hole should be changed to prevent incorrect contact insertion when selecting the circuit. 180
There is one that has been changed and arranged. In the socket contact used for this type of connector, if the socket contact is placed 180 degrees in the opposite direction,
The crimping portions that connect the contacts to the conductors of the electric wires may face in mutually opposite directions, which may cause a mistake in assembling.

[Object of the Invention] In consideration of the above problems and other problems that need to be solved, the main object of the present invention is that a thin metal sheet can be formed from a die (blank), and pin contacts and The object is to provide a socket contact which completely protects the contacting spring part against the outside and prevents the pin contact from being accidentally inserted into the back side of the spring part.

A further object of the present invention is to form a socket contact from the same blank in which the orientation of the crimping portion connecting the conductor of the electric wire does not change even if the orientations of the spring portions are changed by 180 degrees from each other. It is to provide a socket contact capable of

DETAILED DESCRIPTION OF THE INVENTION A preferred embodiment of the socket contact of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing a socket contact 10 of the present invention. The socket contact 10 is formed by bending a thin metal plate of a thin blade shown in FIG.

As shown in FIG. 2, a thin sheet metal blank for forming the socket contact 10 is a carrier strip.
Punched in the form of 12 and 13 connected at regular intervals,
Completed socket contacts as shown in FIG. 1, separated from the carrier strips 12 and 13 from the first and second cutting lines 14 and 15, respectively, and bent separately.
Formed in 10.

Between the first cutting line 14 and the second cutting line 15, the blank of the socket contact 10 is the base 20 of the contact 10.
Is formed. First section line of base 20
14 side is socket contact 10 pin contact P
An electric wire which constitutes a pin contact insertion side portion 22 for receiving and contacting (Fig. 4), and the second cutting line 15 side connects the conductor of the electric wire, that is, the core wire C (Fig. 6) to the socket contact 10. The crimping side portion 24 is constituted.

The pin contact insertion side portion 22 and the electric wire crimping side portion 24 are separated by notches 26 and 27 so as to be bent separately.

A side wall portion adjacent to the base portion 20 of the pin contact insertion side portion 22 and bent inward at a right angle along the longitudinal direction of the base portion 20.
28 is formed and in order to facilitate its bending,
A slot 30 is formed that extends longitudinally along the fold.

Further, adjacent to the side wall portion 28, a top surface portion 32 that is bent inward at a right angle along the longitudinal direction of the side wall portion 28 is formed, and in order to facilitate the bending, a top surface portion 32 is formed in the longitudinal direction along the bent portion. An extending slot 34 is formed.

A pin contact contact portion 36 is formed adjacent to the top surface portion 32 and bent inward at a right angle along the longitudinal direction of the top surface portion 32. The pin contact contact portion 36 is separated from the top surface portion 32 by the notches 38 and 39 provided at the bending position thereof, and extends longitudinally toward the carrier strips 12 and 13 to form a front spring portion 40 and a rear portion. It is formed on the spring portion 42. Regarding the front spring portion 40 and the rear spring portion 42, the front edge 44 of the front spring portion 40 is the front edge of the rear spring portion 42, respectively.
46 It is folded in a U shape so that it is superimposed on top.

Next, with respect to the base portion 20, adjacent to the side facing the side wall portion 28, bent at a right angle along the longitudinal direction of the base portion 20,
A side surface protection portion 48 is formed upright on the outside of the contact contact portion 36. To facilitate its folding, a slot 50 is formed that extends longitudinally along the fold. As shown in FIG. 2, the front end of the side surface protective portion 48 is T
As a tab 52 in the shape of a letter, the side protection from the part of the notch 54
The front pin formed by bending at a right angle to the longitudinal direction of 48 and bending each of the base 20, side wall 28, top surface 32 and pin contact contact portion 36.
The front spring portion 40 of the contact insertion opening 54 (FIG. 1) is covered to ensure that the pin contact P is correctly positioned in the front spring portion.
It can be inserted between 40 and the inner wall of the side wall portion 28.

Notch 26,27 for pin contact insertion side part 22
The parts on both sides of the base portion 20 partitioned by are bent so as to stand upright along the longitudinal direction of the base portion 20 so that the socket contact 10 does not come out when inserted into the housing H (FIG. 5). Can be retention tabs 56, 57.

The wire crimping side portion 24 is separated from the holding tabs 56 and 57 and the cuts 58 and 59 by separating the conductors of the wire, that is, the core wire crimp tabs 60 and 61 and the cuts 62 and 63 from these tabs. And tabs 64 and 65 for wire grips formed as described above.

According to the present invention, by making the same blank constituting the socket contact the bending directions of the side wall portion 28, the top surface portion 32, the pin contact contact portion 36 and the side surface protection portion 48 with respect to the base portion 20 opposite to each other, It is possible to form two types of socket contacts 10 in which the pin contact contact portions 36 are 180 degrees opposite to each other, but the holding tabs 56 and 57 and the core wire crimping tabs 60 and 61 are oriented in the same direction.

[Operation and Effect of the Invention] The socket contact 10 of the present invention is capable of punching and pressing a conductive metal thin plate so that it can be easily understood from the contents of the configuration described in detail above. The base of the socket contact 10
20, side wall 28 bent at right angles, top surface
32, a pin contact contact portion 36, and a front spring portion 40 and a rear spring portion 42, which are formed by bending both ends of the pin contact contact portion 36 into a U shape so that their tips partially overlap each other. Then, the front spring portion 40 and the rear spring portion 42 are surrounded from the outside by the side surface protection portion 48, and further, are surrounded by the base portion 20, the side wall portion 28, the top surface portion 32, the pin contact contact portion 36 and the side surface protection portion 48. The side contact portion 48 covers the front spring portion 40 side of the pin contact insertion opening 54 at the front end of the socket contact 10 formed as described above, so that the pin contacts P and the spring portions 40 and 42 can be attached to the side protector 48 without mistake. Since it can be inserted between the inner surface of the facing side surface portion 28, it is a delicate and important spring portion.
Does not damage 40, 42.

In addition, in order to bring the spring portions 40, 42 of the socket contact 10 of the inserted pin contact P and the side surface portion 28 into proper contact with each other, a ridge portion 66 that protrudes inward from the side surface portion 28 as necessary. Can be formed.

Further, according to the present invention, the orientation of the tabs 56, 57; 60, 61; 64, 65 of the electro-deposition crimping side portion 24 is changed from the same blank while the positions of the spring portions 40, 42 are opposite to each other. 2 in the same direction
A variety of socket contacts 10 can be manufactured.
Therefore, for example, as shown in FIG. 5, in order to avoid an error in the circuit to be connected, the socket contact 10
Even when the spring parts 40 and 42 of the above are arranged with their directions changed, two types of sockets composed of the same blank
The contacts 10 can be mounted respectively, and further, the core wire crimping tabs 60, 61 and the wire grip tabs 64, 65 of the socket contact 10 can be arranged so as to be aligned in the same direction.

[Brief description of drawings]

FIG. 1 is a perspective view showing a socket contact of the present invention, and FIG. 2 is a development view showing a part of a punching die (blank) of a conductive thin metal plate for molding the socket contact of the present invention. 3 is an enlarged sectional perspective view taken along the line III-III in FIG. 1 as seen in the direction of the arrow, and FIG. 4 is a sectional view showing a state in which the pin contact is inserted into the pin contact insertion side portion of the socket contact, FIG. 5 is a front view for explaining a state in which the socket contacts of the present invention are arranged in a model having a change in the arrangement of the socket contacts in the socket housing, and FIG.
FIG. 7 is a sectional view taken along line VI-VI in the direction of the arrow, and FIG. 7 is a sectional view taken along line VII-VII of the figure in the direction of the arrow. For example, 10 …… Socket contact 20 …… Base 22 …… Pin contact insertion side part 24 …… Wire crimping side part 28 …… Side wall part 32 …… Top surface part 36 …… Pin contact contact part 40 …… Front spring part 42 …… rear spring part 48 …… side protection part 52 …… tab 60 …… core wire crimp tab 64 …… wire grip tab

Claims (2)

[Scope of utility model registration request] 1. A base portion made of a thin metal plate, a pin contact insertion side portion and an electric wire crimping side portion which are provided to face each other in the longitudinal direction of the base portion, and the pin contact insertion side portion is provided on the base portion. A side wall portion that is adjacent and bent inward at a right angle along the longitudinal direction, a top surface portion that is adjacent to the side wall portion and is bent inward at a right angle along the longitudinal direction, and a longitudinal direction that is adjacent to the top surface portion. A pin contact contact portion bent inward at a right angle along the direction, and the pin contact contact portion includes a front spring portion and a rear spring portion, and each spring portion is bent in a U shape to form a front spring portion. The tip of the rear spring portion overlaps with the tip of the rear spring portion, and the pin contact contact portion is bent inward at a right angle along the longitudinal direction adjacent to the side of the base portion facing the side wall portion. Anti-spring And side protection unit which is adapted to upright side socket contact formed by composed of a tab bent inwardly at right angles from a front end of the side surface protection unit. 2. The socket contact according to claim 1, wherein the side wall portion is provided with a raised portion facing a position where the front spring portion and the rear spring portion overlap each other.