JPH09147954A - Connector provided with terminal force insertion retainer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase rigidity of a rotation support so as to improve a force insertion property for a terminal by specifying a structure of a connector provided with a terminal force insertion retainer. SOLUTION: A connector provided with a terminal force insertion retainer is provided with a terminal housing chamber 23 formed in a housing 21, an upper opening part 27 which is arranged on the upper face of the housing 21 and passed through the terminal housing chamber 23, a plate type retainer 29, hinges 31 in which the base parts are connected to the housing 21 and the front ends are connected to the retainer 29 so as to support the retainer 29 freely openably toward the upper opening part 27, and a rotation support wall 41 which is arranged in the edge part of the upper opening part 27. In the rotation support wall 41 brought into contact with the retainer 29, whose one end is inserted into the terminal housing chamber 23 via the upper opening part 27, this contact point works as a rotation support P when the retainer 29 is closed. Therefore, the retainer 29 is brought into contact with the rotation support wall 41 so as to be rotated, and the rotation support P is prevented from moving, so that force insertion of a terminal can be carried out immediately in insertion of the terminal as the rotation support P is not moved in spite of the reaction force from the terminal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector with a terminal-pushing retainer that can push a terminal into a terminal accommodating chamber.

[0002]

2. Description of the Related Art There is a connector in which a terminal is mounted in a terminal accommodating chamber formed in a housing so that a terminal in an incompletely inserted position can be pushed into a completely inserted position in the terminal accommodating chamber. As an example of this type of connector provided with a terminal pushing retainer, for example, Japanese Patent Application Laid-Open No. 5-1
The one described in Japanese Patent No. 14432 will be described with reference to FIGS.

FIG. 4 is a perspective view of a conventional connector with a terminal push-in retainer, and FIG. 5 is a sectional view of the connector of FIG. 4 in an open state of the retainer. A plurality of terminal insertion chambers 5 are arranged side by side in the housing 3 of the connector 1, and the terminal insertion chambers 5 are provided in the housing 3.
The rear part becomes the opening 7 for inserting the terminal. The terminal 9 is inserted through the opening 7 and is an elastic locking piece (lance) provided in the terminal insertion chamber 5 at a position where the terminal 9 is completely inserted.
It is locked by 11 and mounted in the terminal insertion chamber 5.

A plurality of upper openings 13 are formed on the rear upper surface of the housing 3 so as to correspond to the respective terminal insertion chambers 5, and the upper openings 13 penetrate into the terminal insertion chambers 5.
A plate-shaped retainer 15 that is long in the direction in which the terminal insertion chambers 5 are arranged in parallel is provided on the upper rear surface of the housing 3, and the retainers 15 are rotatably connected via a thin hinge 17.

The retainer 15 has a base plate portion 15a and a locking plate portion 15b formed by bending the front end side of the base plate portion 15a in the rotational direction at a right angle. Further, a plurality of locking projections 15c are provided on the housing-side facing surface of the base plate portion 15a corresponding to the upper opening 13, and the locking projections 15c are provided in the retainer 1.
It is adapted to be inserted into the terminal insertion chamber through the upper opening 13 by the rotation of 5.

According to the conventional connector 1 with a terminal pushing retainer configured as described above, the terminal 9 has the terminal insertion chamber 5
When the retainer 15 is in the incomplete insertion position, that is, in the middle insertion position, the retainer 15 is rotated to the housing side via the hinge 17, so that the locking projection 15c is inserted from the upper opening 13 into the terminal insertion chamber. Then, by further rotating the retainer 15, the locking protrusion 15c inserted into the terminal insertion chamber
It was possible to bring the terminal 9 into contact with the rear portion of the electrical connection portion 9a of the terminal 9 and push the terminal 9 to the predetermined insertion position of the terminal insertion chamber 5.

[0007]

In the above-described conventional connector 1 with a terminal push-in retainer, when the terminal 9 at the midway insertion position is pushed in by the locking projection 15c, the retainer 15 is rotated about the hinge 17 as a fulcrum. . However,
Since the hinge 17 is formed of a thin band, it has a drawback of low rigidity and easy deformation. Therefore, when the retainer 15 receives a reaction force from the terminal 9 when the terminal 9 is pushed in, the hinge 17, which is a fulcrum, moves, and the pressing force due to the rotation of the retainer 15 decreases, so that the terminal 9 is sufficiently pushed in. There was a problem that force could not be applied.
In addition, in the conventional connector 1 with a terminal pushing retainer,
Before the retainer 15 is rotated, that is, when the retainer 15 is erected in the vertical direction, the locking projection 15c is arranged outside the terminal insertion chamber 5, and therefore, after the retainer 15 is rotated by a considerable angle. The locking protrusion 15c is not inserted into the terminal insertion chamber 5. For this reason, it is not possible to secure a large push-in length L (see FIG. 6) from the contact of the locking projection 15c to the terminal 9 until the terminal 9 is pushed to the completely inserted position, and sufficient pushability cannot be obtained. was there. The present invention has been made in view of the above circumstances, and provides a connector with a terminal push-in retainer in which a sufficient push-in force is obtained by increasing the rigidity of a fulcrum and a sufficient push-in length is obtained by a rotating operation of a retainer. Therefore, the purpose is to improve the pushability of the terminal.

[0008]

To achieve the above object, a connector with a terminal pushing retainer according to the present invention has a terminal accommodating chamber formed in a housing and a terminal accommodating chamber provided on an upper surface of the housing. An upper opening that penetrates through the housing, a plate-like retainer, a base that is connected to the housing and a tip that is connected to the retainer, and that supports the retainer in the upper opening so that the retainer can be opened and closed. A rotary fulcrum wall which is provided at an edge of the opening and contacts one end with the retainer inserted into the terminal accommodating chamber through the upper opening, and the corresponding contact serves as a rotary fulcrum when the retainer is closed. It is characterized by having done. Alternatively, it is characterized in that it is provided with a fulcrum claw that is locked to the hinge and regulates the movement of the retainer whose one end is inserted into the terminal accommodating chamber. Alternatively, the invention is characterized in that a hinge insertion groove formed on the upper surface of the housing and into which the hinge is inserted and having the fulcrum claw is provided. In the connector with a terminal push-in retainer configured as described above, the retainer comes into contact with the rotation fulcrum wall and is rotated, and the movement of the rotation fulcrum is eliminated, and when the terminal is pushed in, it is also rotated by the reaction force from the terminal. The fulcrum does not move. Further, since the retainer is rotated around the rotation fulcrum of the rotation fulcrum wall, one end of the retainer arranged in the terminal accommodating chamber comes into contact with the terminal at the same time as the rotation, and the terminal is immediately pushed. Therefore, the pushing distance of the terminal becomes a long distance corresponding to the start and end of the rotation of the retainer. Further, since the retainer is rotated with the fulcrum claw in the hinge insertion groove being locked to the hinge, the retainer can be reliably moved by preventing the hinge from being pulled out from the hinge insertion groove.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of a connector with a terminal pushing retainer according to the present invention will be described in detail below with reference to the drawings. 1 is an external perspective view of a connector with a terminal push-in retainer according to the present invention, FIG. 2 is an enlarged view of an essential part showing a positional relationship between a hinge portion and a fulcrum claw portion of the connector of FIG. 1, and FIG. FIG. A plurality of terminal accommodating chambers 23 are arranged side by side in the housing 21, and the rear part of the housing 21 of the terminal accommodating chamber 23 is an opening 2 for inserting a terminal.
5 (see FIG. 3). An upper opening 27 is formed on the rear upper surface of the housing 21, and the upper opening 27 exposes the inside of all the terminal accommodating chambers 23 to the outside.

A plate-like retainer 29 is provided in the upper opening 27 via a hinge 31 so as to be openable and closable.
The hinge 31 is made of a pair of strips. Hinge 3
1, the base portion 31a is continuously provided on the upper surface of the housing 21,
The tip extends toward the rear of the housing 21. Hinge 31
The tips are connected to both sides of the retainer 29 described above. A bent portion 33 is provided at the center of the hinge 31.
Is formed, and the hinge 31 is rotatable around the bent portion 33. Therefore, the retainer 29 is rotatably supported by the base 31 a of the hinge 31 and the bent portion 33.

In a state before being set in the housing 21 (state shown in FIG. 1), the retainer 29 is arranged in a standing state parallel to a vertical surface. On the upper surface of the housing 21,
A hinge insertion groove 35 facing each hinge 31 is formed. The hinge 31 rotated around the base portion 31 a toward the housing is inserted into the hinge insertion groove 35. A fulcrum claw 37 is projectingly provided on the inner wall of the hinge insertion groove 35. The hinge 31 has a hinge insertion groove 35.
When it is press-fitted into, it is elastically deformed and gets over the fulcrum claw 37. The fulcrum claw 37 is locked to the upper surface of the hinge 31 that has passed over, and holds the hinge 31 in the hinge insertion groove 35 in a non-removable manner.

With the hinge 31 locked to the fulcrum claw 37, the lower end 39 of the retainer 29 is arranged inside the terminal accommodating chamber 23 so as to project from above. Upper opening 27
The upper portion of the housing 21 (a part of the upper surface plate) facing the upper end, that is, the edge portion of the upper opening portion 27 serves as a rotation fulcrum wall 41. The hinge 31 is engaged with the fulcrum claw 37 and the retainer 29 arranged in an upright state is brought into contact with the end surface of the rotation fulcrum wall 41 (see the state of the broken line in FIG. 3). Therefore, the fulcrum claw 3
When the tip end of the retainer 29 having the hinge 31 locked to 7 is moved in the direction approaching the housing 21 (counterclockwise in FIG. 3), the upper surface of the retainer 29 contacts the lower end surface of the rotation fulcrum wall 41, The lower end face is rotated about the rotation fulcrum p.

A lock claw 43 is formed at the tip of the retainer 29, and the lock claw 43 is engaged with a lock part 45 formed at the edge of the upper opening 27. Therefore, in the retainer 29 rotated in the housing direction about the rotation fulcrum p, the lock claw 43 is locked to the lock portion 45, so that the housing 2 is closed with the upper opening 27 closed.
Fixed to 1.

A terminal mounting procedure of the connector 51 with a terminal pushing retainer thus constructed will be described. The terminal 53 is inserted into the terminal accommodating chamber 23 through the opening 25,
It is assumed that 3 is in the incomplete insertion position of the terminal accommodating chamber 23 (however, not shown). In the retainer 29 standing upright in the vertical direction on the upper surface of the housing 21, the hinges 31 on both sides are press-fitted into the hinge insertion groove 35 and locked by the fulcrum claws 37, so that the lower end 39 of the retainer 29 is inside the terminal accommodating chamber 23. It is placed in the state of protruding. In this state, the retainer 29 still stands upright in the vertical direction.

The hinge 31 locked to the fulcrum claw 37 is arranged at a position where the bent portion 33 substantially coincides with the fulcrum claw 37.
In this state, when the tip of the retainer 29 is rotated toward the housing, the retainer 29 is rotated around the rotation fulcrum p while being in contact with the rotation fulcrum wall 41, and the lower end 39 is in the terminal accommodating chamber. Thus, the terminal housing chamber 23 is moved forward (to the right in FIG. 3). As a result, the terminal 53
Is the lower end 3 of the retainer 29 at the rear of the electrical connection portion 53a.
While being pressed by 9, it is pushed forward of the terminal accommodating chamber 23.

At the same time when the terminal 53 is pushed to a predetermined insertion position, the retainer 29 closes the upper opening 27,
When the lock claw 43 is locked to the lock portion 45, the upper opening 27 is closed and fixed to the housing 21.

This terminal push-in retainer connector 51
Then, the retainer 29 comes into contact with the rotation fulcrum wall 41 and is rotated, and the movement of the rotation fulcrum p disappears. Therefore, when the terminal 53 is pushed in, the rotation fulcrum p
Does not move, the pressing force due to the rotation of the retainer 29 does not decrease, and a reliable pressing force acts on the terminal 53. Further, since the lower end 39 of the retainer 29 is arranged inside the terminal accommodating chamber 23 in a state where the hinge 31 is locked to the fulcrum claw 37, and the terminal 53 can be immediately pushed in from this state, the retainer 29 is rotated. Since the terminal 53 is pushed in from the initial stage, the pushing length L of the terminal 53 is secured to be large.

As described above, according to the connector with retainer 51 for pushing in the terminal, the hinge 3 having the bent portion 33 is provided.
1, the retainer 29 is connected in series, and the hinge 31 is locked to the fulcrum claw 37, whereby the lower end 39 of the retainer 29 is arranged in the terminal accommodating chamber 23 in an inserted state, and the rotation fulcrum wall 4
Since the contact point with 1 is the rotation fulcrum p, the rigidity of the rotation fulcrum p can be increased, and the terminal 5 when the terminal is pushed.
The rotation fulcrum p does not move due to the reaction force from 3,
It is possible to prevent the pressing force from decreasing and to apply a sufficient pressing force to the terminal 53.

Further, since the lower end 39 of the retainer 29 is projected into the inside of the terminal accommodating chamber 23 in the state before the rotation, the terminal 53 can be pushed in at the same time as the rotation of the retainer 29, and the large pushing length L Can be secured.

Further, since the hinge 31 can be temporarily locked to the fulcrum claw 37, the retainer 29 can be preset at the preparatory position for the main locking rotation operation, and the work of pushing the terminal 53 can be performed easily and surely. You can

[0021]

As described in detail above, according to the connector with terminal retainer according to the present invention, the retainer is connected to the housing via the hinge, and the hinge is locked to the fulcrum claw to thereby retain the retainer. The lower end of the retainer is inserted into the terminal accommodating chamber, and the contact point with the rotation fulcrum wall is used as the rotation fulcrum of the retainer, so the rigidity of the rotation fulcrum can be increased and the rotation fulcrum can move. There is no pressure, and a sufficient pushing force can be applied to the terminal. Further, since the lower end of the retainer is projected into the terminal accommodating chamber, the terminal can be pushed in at the same time as the retainer rotates, and a large pushing length L can be secured. As a result,
The pushability of the terminal into the terminal accommodating chamber can be greatly improved. Further, by temporarily locking the hinge to the fulcrum claw in the hinge insertion groove, it is possible to prevent the retainer from rising from the housing and to prevent the hinge from projecting, thereby ensuring the rotation of the retainer.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a connector with a terminal pushing retainer according to the present invention.

FIG. 2 is an enlarged view of an essential part showing the positional relationship between a hinge part and a fulcrum claw part of the connector of FIG.

FIG. 3 is a longitudinal sectional view of the connector of FIG. 1;

FIG. 4 is a perspective view of a conventional connector with a terminal pushing retainer.

5 is a sectional view of the retainer of the connector of FIG. 4 in an open state.

FIG. 6 is an explanatory view showing a pushing length of the connector of FIG.

[Explanation of symbols]

 21 housing 23 terminal accommodating chamber 27 upper opening 29 retainer 31 hinge 31a base 35 hinge insertion groove 37 fulcrum claw 41 pivot fulcrum wall 51 connector with terminal pushing retainer p pivot fulcrum

Claims (3)

[Claims] 1. A terminal accommodating chamber formed in a housing, an upper opening provided on an upper surface of the housing and penetrating the terminal accommodating chamber, a plate-like retainer, and a base connected to the housing. A hinge, the tip of which is connected to the retainer, supports the retainer in the upper opening so as to be openable and closable, and one end is inserted into the terminal accommodating chamber through the upper opening provided at an edge of the upper opening. A connector with a terminal push-in retainer, comprising: a rotation fulcrum wall that comes into contact with the retainer and a corresponding contact point serves as a rotation fulcrum when the retainer is closed. 2. The connector with a terminal pushing retainer according to claim 1, further comprising a fulcrum claw that is locked to the hinge and has one end inserted into the terminal accommodating chamber to restrict movement of the retainer. 3. The connector with a terminal pushing retainer according to claim 2, further comprising a hinge insertion groove formed on the upper surface of the housing, into which the hinge is inserted, and which has the fulcrum claw.