JP2000067976A - Socket contact - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small-sized socket contact which has excellent spring characteristics and uses material efficiently. SOLUTION: A socket contact 1 is equipped with a box part 10 and an electric wire wiring part 30, wherein the box part 10 comprises a bottom plate 11, side plates 12 and 13, an upper plate 14, and a leaf spring 15. A rectangular leaf spring 11a is formed on the bottom plate 11 by cutting and raising it, and the side plates 12 and 13 are formed continued to the sides of the bottom plate 11, while the upper plate 14 is formed continued to one side of the side plate 13. The leaf spring 15 is formed continued to the side plate 12 and is equipped with a base 15a extending toward the other end of the box part 10, a trailing part 15b extending from the base 15a toward the bottom plate 11, and a conpacting part 15c extending from the trailing part 15b toward the other end of the box part 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a socket contact and, more particularly, to a socket contact having a built-in spring and suitable for wiring in an automobile.

[0002]

2. Description of the Related Art As a prior art, Japanese Patent Application Laid-Open No. 10-409
No. 88, the box, a wire connection portion connected to one end of the box portion, and a pin contact provided integrally with the wire connection portion and inserted from the insertion port at the other end of the box portion. A socket contact having a spring portion is disclosed.

A rising piece is formed by making the spring part rise obliquely from one end side to the other end side, and the leading end side of this spring part is folded down, and the folded end is the bottom surface of the box part. Is in contact with

According to this socket contact, the contact can be set at the other end, and the length of the pin contact can be reduced.

[0005]

By the way, the box portion and the wire connection portion of the socket contact can be obtained by bending one metal sheet.

However, since the wire connection portion of the socket contact has a long spring portion, a large metal thin plate is required, and there is a problem that material removal is poor.

There is also a problem that the spring length of the rising piece is short and the spring property is inferior. To solve this problem, a sufficient spring property can be ensured by increasing the length of the spring, but there is a problem that the entire length of the contact becomes longer and the contact becomes larger.

The present invention has been made in view of such circumstances, and an object thereof is to provide a small-sized socket contact which is excellent in spring property and material removal.

[0009]

In order to solve the above-mentioned problems, the invention according to the first aspect is directed to a box part, a wire connection part provided at one end of the box part, and a difference between the other end of the box part. A socket contact provided with a pin contact inserted from an inlet, wherein the box portion, the electric wire connection portion, and the spring portion are formed by bending a single sheet of metal. The box portion includes a bottom plate portion, a side plate portion connected to both sides of the bottom plate portion, an upper plate portion connected to one side of one side plate portion, and a spring portion connected to one side of the other side plate portion. The spring portion includes a base extending in the other end direction of the box portion, a falling portion extending from the base portion toward the bottom plate portion, and a contact portion extending diagonally from the falling portion in the other end direction of the box portion. It is characterized by having To.

[0010] A base portion extending in the other end direction of the box portion, a falling portion extending from the base portion toward the bottom plate portion, and a contact portion extending obliquely from the falling portion toward the other end direction of the box portion are provided. Therefore, the spring length of the spring portion can be increased without increasing the overall length of the contact. Further, since the distal end side of the spring portion is not folded back downward, the length of the spring portion can be shortened, and the metal sheet can be reduced accordingly.

According to a second aspect of the present invention, in the socket contact according to the first aspect, an auxiliary spring that can be brought into contact with the spring portion is formed on the bottom plate by cutting and raising. .

The contact portion can be urged in the pin contact direction by the elastic force between the spring portion and the auxiliary spring.

According to a third aspect of the present invention, in the socket contact according to the first aspect, the spring portion is bent from a tip end of the contact portion toward one end of the box portion,
A bent portion capable of contacting the bottom plate portion is formed.

The spring length of the spring portion is increased by the bent portion.

[0015] According to a fourth aspect of the present invention, a box portion,
An electric wire connection portion provided at one end of the box portion, and a spring portion that comes into contact with a pin contact inserted from an insertion port at the other end of the box portion, wherein the box portion, the electric wire connection portion, and the spring portion have one. In a socket contact formed by bending a sheet of metal sheet, the box portion includes a bottom plate portion and side plate portions connected to both sides of the bottom plate portion.
An upper plate portion connected to one side of one side plate portion, and a spring portion connected to one side of the other side plate portion, wherein the spring portion includes a base portion extending in one end direction of the box portion, and a bottom plate portion from the base portion. And a contact portion extending from the falling portion toward the other end of the box portion.

[0016] The contact portion is provided with a base portion extending in one direction of the box portion, a falling portion extending from the base portion toward the bottom plate portion, and a contact portion extending from the falling portion in the other end direction of the box portion. The spring length can be increased without increasing the overall length of the spring. Further, since the distal end side of the spring portion is not folded back downward, the length of the spring portion can be shortened, and the metal sheet can be reduced accordingly.

According to a fifth aspect of the present invention, in the socket contact according to the fourth aspect, an auxiliary spring that can be brought into contact with the spring portion is formed on the bottom plate by cutting and raising. .

The contact portion can be urged in the pin contact direction by the elastic force of the spring portion and the auxiliary spring.

According to a sixth aspect of the present invention, in the socket contact according to the fourth aspect, the spring portion is bent from one end of the contact portion toward one end of the box portion,
A bent portion capable of contacting the bottom plate portion is formed.

The spring length of the spring portion is increased by the bent portion.

[0021]

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

FIG. 1A is a sectional view of a socket contact according to a first embodiment of the present invention, and FIG. 1B is an expanded view thereof.

In FIG. 1B, a dotted line indicates a folded line which is bent at the time of bending.

The socket contact 1 has a box portion 10 and a wire connection portion 30.

The box portion 10 includes a bottom plate portion 11, side plate portions 12, 13, an upper plate portion 14, and a leaf spring (spring portion) 15.

A rectangular plate spring (auxiliary spring) is provided on the bottom plate 11.
The leaf spring 11a is formed by cutting and raising.
In a, the fixed end 17 is on the wire connection portion 30 side.

The side plate portions 12 and 13 are formed continuously on both sides of the bottom plate portion 11.

The upper plate portion 14 is formed so as to be connected to one side of the side plate portion 13. The upper plate portion 14 is provided with a projection 14a at a position facing the free end of the leaf spring 15 for ensuring electrical contact with a pin contact (not shown).

The leaf spring 15 is formed so as to be continuous with the side plate portion 12, and has the fixed end 18 on the wire connection portion 30 side.

The leaf spring 15 is a front end of the box portion 10 (a front end is farther from the wire connection portion 30 and a rear end is closer to the wire connection portion 30).
And a bottom plate 11 extending from the base 15a.
A falling portion 15b extending toward
contact portion 15 extending obliquely from b to the front end of box portion 10
c.

The electric wire connection part 30 is composed of a core wire crimping part 31 and a sheath holding part 32. The core wire crimping portion 31 and the coating holding portion 32 are each formed in a U-shape.

The socket contact 1 in the unfolded state shown in FIG. 1B is punched out from a roll-shaped thin metal plate including the holding frame 2 by a press.

After being cut as shown in the developed view of FIG. 1B, the following processing is performed before the box portion 10 is formed.

First, the tip of the leaf spring 11a is bent to a predetermined curvature.

The tip of the leaf spring 15, which is to be in contact with the pin contact, is bent to a predetermined curvature.

Next, the leaf spring 15 is bent into the above-described shape.

At this time, the cut-and-raised angle of the leaf spring 11a is larger than the inclination angle of the contact portion 15c (leaf spring 15).

Further, a projection 14a is formed on the upper plate portion 14.

Thereafter, the box 10 is bent.

First, the leaf spring 15 is attached to the side plate 12 by 9
Fold it at 0 °.

Thereafter, the upper plate portion 14 and the side plate portions 12 and 13 are bent in this order to form the box portion 10 having a rectangular cross section.

As a result, the leaf spring 15 and the leaf spring 11a that come into contact with the pin contact are accommodated in the box portion 10 in a state of contact.

The core wire crimping portion 31 and the sheath holding portion 32 of the wire connection portion 30 to which the wires are connected are each bent substantially into a U-shape.

The holding frame 2 is cut after connecting the electric wire to the electric wire connection portion 30.

According to this embodiment, since the spring length of the leaf spring 15 is increased by the base portion 15a, the falling portion 15b, and the contact portion 15c, the spring property is improved, and the total length of the contact is not increased. The size can be reduced.

Further, since the distal end side of the spring portion is not folded down, the length of the spring portion can be shortened, a thin metal plate can be used correspondingly, and material removal can be improved.

Further, the contact portion 15c can be reliably brought into contact with the pin contact by the elastic force of the leaf spring 15 and the leaf spring 11a.

FIG. 2A is a sectional view of a socket contact according to a first modification of the first embodiment of the present invention.
(B) is a development view of the same parts, and the same parts as those in the first embodiment are denoted by the same reference numerals and description thereof will be omitted.

This modified example is different from the first embodiment in that the fixed end 117 of the leaf spring 111a formed on the bottom plate portion 111 is located on the front end side of the box portion 10.

According to this modification, the same effects as in the first embodiment can be obtained.

FIG. 3A is a sectional view of a socket contact according to a second modification of the first embodiment of the present invention.
(B) is a development view of the same parts, and the same parts as those in the first embodiment are denoted by the same reference numerals and description thereof will be omitted.

In this modification, a leaf spring 11a is
Instead, the bent portion 15d that bends from the tip of the contact portion 15c toward the rear end of the box portion 10 and abuts on the bottom plate portion 211 is different from the first embodiment in that the leaf spring 215 is formed. .

According to this modification, the spring length of the leaf spring 215 is increased by the bent portion 15d.
And the contact portion 15c is reliably contacted by the pin contact.

FIG. 4A is a sectional view of a socket contact according to a second embodiment of the present invention, and FIG. 4B is a developed view of the same. The description is omitted.

This embodiment differs from the first embodiment only in the configuration of the leaf spring 415.

That is, the leaf spring 415 is connected to the box 1
0, a base 415a extending rearward, and the base 415a
A falling portion 415b extending from the bottom plate portion 11 toward the bottom plate portion 11;
A contact portion 415c that extends diagonally from the falling portion 415b toward the front end of the box portion 10 is provided.

According to the second embodiment, the same effects as in the first embodiment can be obtained.

Since the leaf spring 415 extends in the direction of the electric wire connection portion 30, the empty space of the electric wire connection portion 30 and the like can be effectively used, and the material removal is better than in the first embodiment.

FIG. 5A is a sectional view of a socket contact according to a first modification of the second embodiment of the present invention.
(B) is a development view, and the same portions as those in the first embodiment and the second embodiment are denoted by the same reference numerals, and description thereof will be omitted.

This modification is different from the second embodiment in that the fixed end 517 of the leaf spring 511a formed on the bottom plate 511 is set to the front end of the box 10.

According to this modification, the same effects as in the second embodiment can be obtained.

FIG. 6A is a sectional view of a socket contact according to a second modification of the second embodiment of the present invention.
(B) is a development view, and the same portions as those in the first embodiment and the second embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In this modification, a leaf spring 11a is
The second embodiment differs from the second embodiment in that a bent portion 415d that bends from the front end portion of the contact portion 415c toward the rear end of the box portion 10 and abuts on the bottom plate portion 611 is formed in the leaf spring 615 instead of cutting up. .

According to this modification, the spring length of the leaf spring 615 is increased by the bent portion 415d.
5, the contact portion 415c is reliably contacted by the pin contact.

[0065]

As described above, according to the socket contact of the first or third aspect of the present invention, the spring property is improved, the size of the contact can be reduced, and the material can be easily removed.

According to the socket contact according to the second or fourth aspect of the present invention, when the pin contact is inserted, the contact portion reliably contacts the pin contact by the elastic force of the spring portion and the auxiliary spring. Can be.

According to the third or sixth aspect of the present invention, when the pin contact is inserted, the contact portion reliably contacts the pin contact by the elastic force of the spring portion and the auxiliary spring. Can be.

[Brief description of the drawings]

FIG. 1A is a sectional view of a socket contact according to a first embodiment of the present invention, and FIG. 1B is an expanded view thereof.

FIG. 2A is a sectional view of a socket contact according to a first modification of the first embodiment of the present invention, and FIG. 2B is an expanded view thereof.

FIG. 3A is a sectional view of a socket contact according to a second modification of the first embodiment of the present invention, and FIG. 3B is an expanded view thereof.

FIG. 4A is a cross-sectional view of a socket contact according to a second embodiment of the present invention, and FIG. 4B is a developed view thereof.

FIG. 5A is a sectional view of a socket contact according to a first modification of the second embodiment of the present invention, and FIG. 5B is an expanded view thereof.

FIG. 6A is a sectional view of a socket contact according to a second modification of the second embodiment of the present invention, and FIG. 6B is an expanded view thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Socket contact 10 Box part 11 Bottom plate part 11a Leaf spring (auxiliary spring) 12, 13 Side plate part 14 Upper plate part 15, 215, 415, 615 Leaf spring (spring part) 15a, 415a Base part 15b, 415b Falling part 15c, 415c Contact part 15d, 415d Bent part

Claims (6)

[Claims] 1. A box, comprising: a box portion; a wire connection portion provided at one end of the box portion; and a spring portion that comes into contact with a pin contact inserted from an insertion port at the other end of the box portion. Part, the wire connection part, and the spring part are formed by bending a single thin metal plate. In the socket contact, the box part includes a bottom plate part, and side plate parts connected to both sides of the bottom plate part. An upper plate portion connected to one side of one side plate portion, and a spring portion connected to one side of the other side plate portion, wherein the spring portion extends from the base portion in the other end direction of the box portion. A falling part extending toward the bottom plate part,
A contact portion extending obliquely from the falling portion toward the other end of the box portion. 2. The socket contact according to claim 1, wherein an auxiliary spring that can contact the spring portion is formed on the bottom plate portion by cutting and raising. 3. The spring portion is formed with a bent portion which is bent from a tip portion of the contact portion toward one end of the box portion and can contact the bottom plate portion. Socket contact as described in. 4. A box part, a wire connection part provided at one end of the box part, and a spring part which comes into contact with a pin contact inserted from an insertion port at the other end of the box part. In a socket contact in which an electric wire connection portion and a spring portion are formed by bending a single thin metal plate, the box portion includes a bottom plate portion, a side plate portion connected to both sides of the bottom plate portion, and one side plate. An upper plate portion connected to one side of the portion, and a spring portion connected to one side of the other side plate portion. The spring portion extends from one end of the box portion toward the bottom plate portion. A falling part that extends,
A contact portion extending from the falling portion toward the other end of the box portion. 5. The socket contact according to claim 4, wherein an auxiliary spring that can contact the spring portion is formed on the bottom plate portion by cutting and raising. 6. A bent portion that is bent from the tip of the contact portion toward one end of the box portion and can contact the bottom plate portion, wherein the spring portion is formed. Socket contact as described in.