JP2840170B2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector provided with a retainer for pushing and holding a terminal in a connector housing.

[0002]

2. Description of the Related Art FIG. 16 is an exploded sectional view showing a conventional connector. As shown in FIG. 1, the connector includes a connector housing 10 and a retainer 20.
The retainer 20 has a pair of guide portions 21 which are inserted into the connector housing 10 so as to be able to be inserted into and removed from the opening 11 at one end thereof, and a flexible hinge portion at an end opposite to the insertion direction of the guide portion 21. And a pair of push-in pieces 23 respectively attached via the respective push-in pieces 22. Each pushing piece 23
Due to the restoring force of the hinge part 22, the guide part 21 is held in a posture (bent posture) that protrudes outward so as to be orthogonal to the insertion direction of the guide part 21.

[0003] Then, as shown in FIG.
No. 0 guide portions 21 are inserted into the connector housing 10 from the openings 11, and the pushing pieces 23 are arranged so as to be locked to the edges of the opening 11 of the connector housing 10 (temporarily locked state), and the terminals 30 are connected. It is inserted into the connector housing 10 through the opening 11.

Subsequently, the pushing piece 23 of the retainer 20 is
The guide portion 21 is bent along the insertion direction against the restoring force of the hinge portion 22 (see FIG. 17). In this state, as shown in FIG. 19, the retainer 20 is moved together with the pushing piece 23 until the engaging projection 24 formed on the pushing piece 23 is engaged in the engaging hole 12 of the connector housing 10. Push in. Thus, the end 23a of the guide portion 21 of the pushing piece 23 is engaged with the base end of the terminal 30, and the terminal 30 is pushed in, and the terminal 30 is held in this state (finally locked state).

[0005]

However, in the conventional connector, the push-in piece 23 is held in the bent position by the flexible hinge portion 22 in the provisionally locked state. When a pushing force F as shown in FIG. 17 is applied to the pushing piece 23 of FIG. 20, the pushing piece 23 tries to return to the original bent position, and the applied force F does not act as a pushing force. There was a problem that can not be performed smoothly.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art and to provide a connector which can easily press a retainer.

[0007]

SUMMARY OF THE INVENTION According to the present invention, a guide portion is removably inserted into an opening of one end of a connector housing, and an end opposite to the insertion direction of the guide portion is flexible. And a pushing piece which is attached via a flexible hinge portion and which is held in a posture protruding outward so as to be substantially perpendicular to the insertion direction of the guide portion by a restoring force of the hinge portion. And
While holding the pushing piece in the bent posture,
Insert the retainer into the connector housing
While the connector is temporarily inserted into the connector housing,
After inserting the terminal into the connector housing, pressing the pushing piece into the connector housing in a state in which the pushing piece is bent along the insertion direction against the restoring force of the hinge portion. Accordingly, a connector in which the terminals housed in said connector housing is pushed held by the retainer, in order to achieve the above object, the hinge portion, the insertion direction of the guide portion
And the guide portion of the pushing piece.
The insertion direction side edge at the bending posture on the side end face;
On the other hand, when the pushing piece is bent along the insertion direction, an engaging part and an engaged part for mutually engaging and holding the pushing piece in the inserting posture are formed, Said
So as to be positioned on either side base near the hinge portion, the widthwise center of the guide portion side end portion of the vicinity of pushing one end widthwise central portion of the portion Oyo <br/> beauty said push piece of the guide portion
It is formed near the part .

[0008]

According to the connector of the present invention, when the pushing pieces of the retainer are bent along the insertion direction, they engage with each other to hold the pushing pieces in the insertion position, and the engaged portions are engaged. Parts are formed on the guide portion and the push piece of the retainer, respectively, so that if the push piece is bent along the insertion direction, the push piece is brought into the insertion posture by the engagement of the engaging portion and the engaged portion. It is held and the pushing piece is prevented from being bent back when the retainer is pushed. Further, the engaging portion and the engaged portion are
Guide part so that it is located near both sides of the hinge part
On the push piece side end and the guide piece side end of the push piece.
The entire guide section of the retainer is substantially
Temporarily inserted with connector inserted into connector housing
So that the guide portion can be
Does not protrude backward from the connector housing
be able to. In addition, the hinge of the retainer
The end opposite to the insertion direction of the part and the guide part of the pushing piece
Between the side edge and the side edge in the insertion direction when bent.
And the engaging portion is one end of the pushing portion of the guide portion.
That is located near the base of the hinge
Then, the pushing piece in the temporary insertion state is held in the bending posture.
The engaging part is larger than the rear end of the pushing
It is designed to be located in a recessed position. Also engage
The part and the engaged part are at the pushing one side end of the guide part.
Near the center in the width direction and the end of the pushing piece on the guide side.
Is located near the center in the width direction.
Is long in the width direction perpendicular to the insertion direction.
Without being affected by the bending of the retainer.
Engage the engaged part securely, and push the pushing piece along the insertion direction.
Can be reliably held in the inserted posture.

[0009]

1 to 4 are views showing a connector C according to an embodiment of the present invention, and FIGS. 5 to 8 are views showing a connector housing 50 applied to the connector C, respectively. Among these, in the sectional views of FIGS. 1, 2 and 8, the sectional positions of the upper half and the lower half are different from each other.

As shown in these figures, the connector C
Has a connector housing 50 and a retainer 100. The connector housing 50 is made of an integrally molded product of a resin material, and has first and second housing portions 51 and 49 in a right half and a left half. Of the two housing portions 51 and 49, a first housing portion 51 (hereinafter, simply referred to as "housing portion 51") related to this embodiment is formed substantially symmetrically in the vertical and horizontal directions, respectively, and has one end side. Opening 5 communicating with housing part 51
2 are formed, and the inside of the housing portion 51 is divided into two upper and lower stages by a partition plate 53, and the terminals 150 (see FIGS. 1 and 2) accommodated in each stage are arranged in the width direction of the housing portion 51. It is configured to be able to arrange a plurality along. Further, concave portions 54 are formed on the outer surface sides of the upper wall and the lower wall of the housing portion 51, respectively. A plurality of slits 56 extending in the insertion direction of the terminal 150 are formed in the recessed portion 54 corresponding to the terminal accommodating positions in the housing portion 51, respectively. Each slit 56
An elastic piece 57 is arranged on one end side of the
7 are supported by the housing portion 51 in a cantilever manner, and the distal end 58 of the elastic piece 57 is
Each of the slits 56 is disposed at a substantially central portion of the slit 56 so as to protrude a small amount inward.

An engagement hole 59 for engaging a retainer 100, which will be described later, is formed in a region 55 closer to the opening 52 than the recessed portion 54 of the upper and lower walls of the housing portion 56. A guide portion insertion slit 60 is formed in the periphery of the concave portion 54. As shown in FIGS. 3 and 4, a recess 61 is formed on the outer surface of one side wall of the housing portion 51, and a slit-like engagement hole 62 is formed at an end of the recess 61. Is formed. Although not shown, the second part of the housing part 51 is not shown.
An engagement hole similar to the above-described engagement hole 62 is also formed in a boundary portion with the housing portion 49, in other words, on the other side wall of the housing portion 51.

FIGS. 9 to 15 are views showing a retainer 100 applied to the connector C of this embodiment. As shown in FIG. 1 to FIG. 4 and FIG. 9 to FIG.
It has a pair of guide portions 101 which can be inserted into the housing portion 51 through the opening 52 and are arranged in parallel with each other.
Between the two guide portions 101, a vertical piece 102 is stretched over the central portion and both side portions, and an engagement protrusion 103 is formed on the both vertical pieces 102 corresponding to the engagement hole 62 in the side wall of the housing portion 51. Is done. Pushing pieces 105 are attached to ends of the guide sections 101 opposite to the insertion direction via flexible hinge sections 104, respectively. Each push piece 105 is held in a posture (bending posture) that protrudes outward so as to be orthogonal to the insertion direction of the guide part 101 in a natural state due to the restoring force of the hinge part 104. More details
Specifically, the hinge portion 104 is inserted in the guide portion 101 in the insertion direction.
And the guide portion 101 of the pushing piece 105.
Between the side edge and the side edge in the insertion direction when bent.
It's done

An engagement protrusion (engaging portion) 101a is formed at a center position in the width direction (near the center portion in the width direction) at an end of the guide portion 101 on the pushing piece 105 side. Corresponding to each of the pushing pieces 1
In the vicinity of the widthwise central portion of the end portion 05 of the guide portion 101, the engaging recess (engaged portion) 105a is formed, thereto
Therefore, the engagement protrusion 101a and the engagement recess 105a
Being located near the base of both sides of the hinge part 104
(See FIGS. 2 and 12) . Then, as shown in FIG. 12 to FIG. 15, each push piece 105 is bent inward by 90 degrees against the restoring force of the hinge part 104, and each push piece 105 is inserted in the insertion direction of each guide part 101. When disposed in a posture (insertion posture) along the engagement, each engagement protrusion 101a is engaged with each engagement recess 105a, and each push piece 105 is held in the insertion posture.

The thickness of each push piece 105 is set to be thicker than the thickness of the guide portion 101. When each push piece 105 is in the insertion position as shown in FIG. Are formed so that the corner portions 105b on the guide portion 101 side protrude inward from the guide portion 101, respectively. Further, engaging projections 106 are formed on the outer surface of each of the pushing pieces 105 so as to correspond to the engaging holes 59 of the upper wall and the lower wall of the housing portion 51, respectively.

When the thus configured retainer 100 is assembled to the connector housing 50 to hold the terminals, the guide portions 101 of the retainer 100 are inserted into the housing portion 51 through the opening 52 as shown in FIGS. At the same time, each of the pushing pieces 105 is engaged with the edge of the opening 52 of the housing section 51. At this time, each guide unit 101
Are arranged in the recessed portion 54 on the outer surface side of the housing portion 51 through the slit 60 for inserting the guide portion of the recessed portion 54.

Subsequently, a plurality of terminals 150 (see FIG. 2) are inserted through the opening 52 into predetermined positions in the housing portion 51 with the retainer 100 temporarily locked to the housing portion 51 as described above. In this case, each terminal 150 is formed with an engagement recess 151 corresponding to each elastic piece 57 of the housing portion 51.
Each of the elastic pieces 57 is elastically engaged in the inside 1, and the terminal 150 is prevented from coming off.

Next, each pushing piece 105 of the retainer 100 is bent inward along the insertion direction, and the engaging projection 101a is engaged with the engaging recess 105a as described above. (See FIGS. 13 and 15).

Subsequently, as shown in FIG.
00 is pushed into the housing portion 51 together with the pushing piece 105. Thereby, the corner portion 105 of the pushing piece 105
b is locked on the base end side of each terminal 150, and each terminal 150 is pushed and held, and the retainer 1
The engagement projections 103 and 106 of the “00” are respectively engaged with the engagement holes 62 of the side wall of the housing portion 51 and the engagement holes 59 of the upper and lower walls, and the retainer 100 is fully locked to the housing portion 51. In this manner, each terminal 150 is held in a pushed state by the retainer 100, and the connector C is assembled.

According to the connector C, the retainer 100
When the pushing pieces 105 are bent along the insertion direction, the engaging projections 101a and the engaging recesses 105a are engaged with each other to hold the pushing pieces 105 in the inserting posture. Since the push piece 105 is bent along the insertion direction since the push piece 105 is formed on the push piece 105, the push piece 105 is held in the insertion position by the engagement of the engagement protrusion 101a and the engagement recess 105a. The pushing piece 105 is prevented from being folded back at the time, and all the force applied to the pushing piece 105 can be used as the pushing force, so that the pushing operation of the retainer 100 can be performed smoothly. Also engage
The protrusion 101a and the engagement recess 105a are
4 so that the guide portion 101
Of the pushing piece 105 and the guide 1 of the pushing piece 105
01 is provided at the end on the 01 side, and the retainer 100
The guide portion 101 and the vertical piece 102 are substantially
Temporarily locked (temporarily locked) in a state inserted into the connector housing 50.
Insertion) state, so that it is in the temporarily locked state.
Guide part 101 and vertical piece 102, especially guide part 10
1 does not protrude rearward from the connector housing 50
In this way, in the provisionally locked state,
An obstacle hits the guide part 101 and the vertical piece 102,
Of the guide part 101 and the vertical piece 102,
The portion provided with the engagement protrusion 101a is damaged, and cannot be used.
Etc. can be prevented. Furthermore, on
As described above, the side wall of the retainer 100 is in the temporarily locked state.
Vertically from the connector housing 50
The terminal 150 can be inserted without being protruded.
The vertical piece 102 projecting rearward when the terminal 150 is inserted
Insert the terminal 150 smoothly without disturbing the work
Work can be performed, and automatic terminal mounting machine
The work of inserting the terminal 150 can be easily automated.
You. Further, the hinge portion 104 of the retainer 100 is
The end opposite to the insertion direction of the portion 101 and the pushing piece 10
5 Insertion method in the bent posture on the guide unit 101 side end face
And the engaging projection 1
01a is at the end of the guide portion 101 on the pushing piece 105 side.
Runode provided at the base near the hinge portion 104, the temporary
The pushing piece 105 in the locked state is held in the bent posture.
In the state where the engagement protrusion 101a is
It is located at a position deeper than the rear end
Therefore, in the temporary locked state,
The portion provided with the engagement protrusion 101a is
Protection from interference with obstacles.
Can be stopped. Further, the engagement protrusion 101a and the engagement recess 1
05a is at the end of the guide portion 101 on the pushing piece 105 side.
Near the center in the width direction and the guide portion 1 of the pushing piece 105
It is provided near the center in the width direction at the 01 side end.
Therefore, the retainer 100 is long in the width direction perpendicular to the insertion direction.
In the case where the retainer 100 is not
Without receiving the engagement protrusion 101a and the engagement recess 105a.
Are securely engaged, and the pushing piece 105 is moved along the insertion direction.
The insertion posture can be reliably maintained.

[0020]

As described above, according to the connector of the present invention, when the pushing pieces of the retainer are bent along the insertion direction, they are engaged with each other to hold the pushing pieces in the insertion posture. Since the engaging portion and the engaged portion are formed on the guide portion and the pushing piece of the retainer, respectively, if the pushing piece is bent along the insertion direction, the engagement of the engaging portion and the engaged portion causes The pushing piece is held in the insertion position, the pushing piece is prevented from being bent back when the retainer is pushed, and all the force applied to the pushing piece can be made the pushing force, so that the pushing work of the retainer can be smoothly performed. Is obtained. Also,
The mating and engaged parts are located near the bases on both sides of the hinge.
So that it is located
It is provided at each end of the guide section side,
The entire guide is inserted substantially into the connector housing
The temporary insertion state can be set in the inserted state.
Guide part is behind connector housing when in
Can be configured so that it does not protrude
In the inserted state, an obstacle hits the guide, and the guide
Part, especially the part provided with the engaging part of the guide part is damaged,
It is possible to prevent the state of being unusable or the like. Sa
In addition, the hinge of the retainer faces the insertion direction of the guide.
And the opposite end and the pushing piece
When it is formed between the insertion direction side edge at the time of bending posture
In addition, the engaging portion is a hinge at one end of the pushing portion of the guide portion.
Because it is provided near the base of the part,
In the state where the pushing piece to be held is held in the bending posture,
The engaging part is located at a position deeper than the rear end of the pushing piece.
Therefore, in the provisionally locked state,
The part of the guide part where the engaging part is provided is
Is also protected and can be more reliably prevented from interfering with obstacles.
You. Further, the engaging portion and the engaged portion may be formed by a pushing piece of the guide portion.
Near the center in the width direction at the side end and the guide
Near the center in the width direction at the end on the side of the door
Because the retainer is long in the width direction perpendicular to the insertion direction
Is not affected by the deflection of the retainer.
Ku, securely engage the engagement portion and the engaged portion, inserted the push piece
Can be securely held in the insertion position along the insertion direction
You.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a connector according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the connector of the embodiment.

FIG. 3 is a perspective view schematically showing a connector according to the embodiment.

FIG. 4 is an exploded perspective view schematically showing the connector of the embodiment.

FIG. 5 is a front view showing a connector housing applied to the connector of the embodiment.

FIG. 6 is a plan view showing a connector housing applied to the embodiment.

FIG. 7 is a side view showing a connector housing applied to the embodiment.

8 is a sectional view taken along line VIII-VIII in FIG.

FIG. 9 is a front view showing a retainer applied to the connector of the embodiment.

FIG. 10 is a plan view showing a retainer applied to the embodiment.

FIG. 11 is a side view showing a retainer applied to the embodiment.

FIG. 12 is a sectional view taken along line XII-XII of FIG. 9;

FIG. 13 is a sectional view showing a retainer applied to the embodiment.

FIG. 14 is an enlarged sectional view of a main part of FIG.

FIG. 15 is an enlarged sectional view of a main part of FIG.

FIG. 16 is an exploded sectional view showing a conventional connector.

FIG. 17 is a cross-sectional view showing a retainer applied to a conventional connector.

FIG. 18 is a sectional view showing a conventional connector.

FIG. 19 is a sectional view showing a conventional connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 50 Connector housing 51 Housing part 100 Retainer 101 Guide part 101a Engagement projection 104 Hinge part 105 Push-in piece 105a Engagement concave part 150 Terminal C connector

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroyuki Nakata 1-114, Nishisuehiro-cho, Yokkaichi-shi, Mie Sumitomo Wiring Systems Co., Ltd. (56) References Japan Institute of Invention and Innovation Technical Report 92-29137 (58) Fields surveyed ( Int.Cl. ⁶ , DB name) H01R 13/42

Claims (1)

(57) [Claims] 1. A guide portion which is inserted into and detachable from an opening at one end of a connector housing, and is attached via a flexible hinge portion to an end of the connector portion opposite to an insertion direction of the guide portion. together, by the restoring force of the hinge portion, and the retainer and a push piece which is held in the folded position projecting outwardly arranged to substantially perpendicular to the insertion direction of the guide portion, the pushing piece In a folded position
Hold the guide section inside the connector housing while holding
And insert the retainer into the connector housing temporarily.
In the inserted state, connect the terminal from the opening to the connector housing.
After being inserted into the jing, the pushing piece is bent along the insertion direction against the restoring force of the hinge portion.
Te, by pushing the push piece in the connector housing, before being accommodated in the connector housing
In the connector in which the terminal is pushed and held by the retainer, the hinge portion is moved in a direction opposite to the insertion direction of the guide portion.
The opposite end and the guide portion side end face of the pushing piece
Between the insertion direction side edge portion in the bending posture in the insertion position.
On the other hand, when the pushing piece is bent along the insertion direction, the engaging part and the engaged part for mutually engaging and holding the pushing piece in the inserting posture are formed by the hinge part.
In front of the guide so that it is
Connector being characterized in that formed in the vicinity of the widthwise central portion of the guide portion end near the widthwise central portion of the serial pushing one end portion and the push <br/> Komihen.