JP4069937B2 - connector - Google Patents

Description

  The present invention relates to a connector in which a terminal fitting is double locked by a retainer.

  In this type of connector, the terminal fitting inserted into the cavity of the connector housing is held in a retaining state by a locking mechanism such as a lance formed by cutting and raising the terminal fitting, and the retainer is held in the connector housing in the locking position. By mounting, the terminal metal fitting is double-locked so as to be in a state where it is further prevented from coming off.

In order to perform maintenance such as replacement of the terminal fitting in the connector, it is necessary to pull out the terminal fitting in the cavity from the connector housing. In order to pull out the terminal fitting in the double locking type, firstly retract the retainer from the locking position to release the double locking state, and then release the locking mechanism such as the lance in that state. Become.
However, the operation of retracting the retainer from the locking position is relatively simple. However, since the locking mechanism such as the lance is located inside the cavity, it is elongated from the front surface of the cavity to release the locking state. A special jig must be inserted and grope, which is not easy.

Therefore, it is conceivable to form a jig insertion port that reaches the lance by penetrating the connector housing, but in this case, a problem such as a foreign substance entering from the jig insertion port and adhering to the terminal fitting is expected. .
The present invention has been completed on the basis of the above circumstances, and its purpose is to easily remove the terminal fitting from the connector housing, and to effectively prevent foreign matter from entering the connector housing. There is a place to provide a connector that can.

<Invention of Claim 1>
In order to achieve the above object, a connector according to claim 1 includes a cavity into which a terminal fitting is inserted into a connector housing, and the terminal fitting inserted into the cavity is held in a retaining state by a locking mechanism. In addition, by attaching the retainer to the connector housing in a locking position, the terminal metal fitting is double-locked so as to be further prevented from being detached, and the retainer has a main plate portion, and The main plate portion is provided with terminal locking protrusions positioned in the cavity at the locking position and locked to the terminal fitting, and mounting wall portions are formed on the left and right sides of the main plate portion, respectively. While the mounting wall is formed with a locking hole, the right and left side walls of the connector housing are provided with locking protrusions that can be locked with the locking hole, and The position where the terminal locking projection enters the cavity and locks to the terminal fitting, and the terminal locking projection moves away from the cavity and the terminal fitting moves in the cavity. A jig is inserted to insert a jig for releasing the locking by the locking mechanism on the outer surface side of the side wall portion to which the main plate portion is attached in the connector housing. mouth is formed, and this is the jig insertion holes are provided face stepped portions so that recessed inward while leaving front portion than the jig insertion opening is formed, and the inside the stepped portion, the jig An insertion port is formed, and an opening for projecting the terminal locking projection of the retainer into the cavity is formed at the rear of the jig insertion hole, and is inserted into the distal end of the main plate. Mouth closure extends integrally And when the retainer is disposed at the locking position, the terminal locking protrusions enter the inner surface of the side wall portion between the jig insertion port and the opening. The main plate portion and the insertion port closing portion are received by the bottom surface of the stepped portion, and the jig insertion port is closed by covering the jig insertion port from the outer surface side, and this jig insertion When the opening is closed, the outer surface of the front portion of the jig insertion opening in the housing and the insertion opening closing part are flush with each other, and the insertion opening closing part is when the retainer is retracted from the locking position. The feature is that the jig insertion opening is opened.

<Invention of Claim 2>
According to a second aspect of the present invention, in the first aspect of the present invention, the locking mechanism for the terminal fitting is formed on the terminal fitting in a cut-and-raised shape, and the lance is formed on the cavity inner surface of the connector housing. The jig insertion port is formed so as to penetrate the wall surface of the connector housing and press the lance in the tilting direction with the jig. However, it has characteristics.

<Invention of Claim 3>
A third aspect of the present invention is the retainer according to the first or second aspect, wherein the retainer main body is mounted on the side wall portion of the connector housing along the insertion direction of the terminal fitting and mounted at the locking position. The retainer body is integrally provided with a terminal locking projection that is positioned in the cavity at the locking position and locks the terminal fitting, and an insertion port closing portion that closes the jig insertion port. It is characterized by having the configuration as described above.

<Invention of Claim 4>
According to a fourth aspect of the present invention, in the first aspect of the invention, the retainer opens the jig insertion port while the insertion port closing portion is spaced apart from the wall surface of the connector housing in which the jig insertion port is opened. It is characterized in that it can be retracted from the locking position and can be temporarily locked at the retracted position.

<Invention of Claim 5>
According to a fifth aspect of the present invention, in the invention of the fourth aspect, a retainer is in the retracted position on at least one of the insertion port closing portion and the wall surface of the connector housing in which the jig insertion port is opened. A protrusion is formed to narrow a gap between the insertion port closing portion and the wall surface, and a retainer is provided on the opposite side of the insertion port closing portion and the wall surface from the side where the protrusion is formed. Is characterized in that a recess is formed in which the protrusion is fitted and escaped when moved to the locking position.

<Invention of Claim 6>
The invention of claim 6 is the invention according to claim 5, wherein the projection is formed on the insertion port closing portion side, while the jig insertion port also serves as a recess for fitting the projection to escape. It has the characteristics in that place.

<Invention of Claim 1>
According to the connector of the first aspect, in order to pull out the terminal fitting from the connector housing, first, the retainer is retracted from the locking position. Then, the retaining state of the terminal fitting is released, and the terminal fitting is locked to the connector housing only by the locking mechanism.
In addition, since the retainer is retracted from the locking position, the insertion port closing portion opens the jig insertion port, so that the jig is inserted into the jig insertion port and the terminal metal locking mechanism is released. Will be able to.
Further, when the retainer is in the locking position, the jig insertion port is closed by the retainer insertion port closing portion, so that foreign matter can be reliably prevented from entering from here.

<Invention of Claim 2>
According to the connector of the second aspect, since the locking mechanism is composed of a lance formed in a cut-and-raised shape on the terminal fitting and the stopper surface of the connector housing, the structure of the locking mechanism is simple. In addition, if the jig insertion port is opened, the jig is inserted from there and the lance is pressed, the locking can be released, and the operation becomes very simple.

<Invention of Claim 3>
In the connector according to claim 3, since the retainer body is moved along the insertion direction of the terminal fitting and is mounted at the locking position, an insertion port closing portion may be provided integrally at the distal end portion of the retainer body. The structure of the retainer becomes simple.

<Invention of Claim 4>
In the connector according to the invention of claim 4, the retainer can be temporarily locked with respect to the connector housing at the retracted position, and the terminal fitting can be inserted and removed while the retainer is assembled, which is convenient for handling. Become.

<Invention of Claim 5>
According to the connector of the fifth aspect, when the retainer is in the retracted position, the gap between the insertion port closing portion and the wall surface of the connector housing is narrowed by the presence of the protrusion, so that the electric wire is inadvertently interposed therebetween. When the retainer moves to the locking position, the jig insertion port is securely closed by the insertion port closing portion while the projection is fitted in the recess and is released.

<Invention of Claim 6>
According to the connector of the sixth aspect, it is not necessary to separately provide a recess by making the jig insertion opening also serve as a recess for escape, and the structure can be simplified.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
<First Embodiment>
First, a first embodiment in which the present invention is applied to a female connector of a retainer upper and lower wall mounting type will be described with reference to FIGS.
The connector housing 10 has a box shape, and a plurality of cavities 11 are provided through the front and rear (in the left-right direction in FIG. 2). A male terminal insertion port 12 connected to the cavity 11 is opened on the front surface of the connector housing 10, and a male side (not shown) is inserted through the male terminal insertion port 12 with the terminal fitting 20 inserted into the cavity 11 from the rear. When the terminal fitting is inserted, the terminal fitting 20 is connected. On the upper surface of the connector housing 10, a lock arm 13 for engaging with the mating connector on the male side is provided in a cantilever state extending rearward from the center of the front end of the connector housing 10. Yes.

  The terminal fitting 20 is integrally provided with a wire barrel 21 to which the core wire 31 of the electric wire 30 is caulked and connected, an insulation barrel 22 to which the insulation coating of the electric wire 30 is caulked and fixed, and a connecting portion 23 having a rectangular tube shape in front of these. In addition, an elastic contact piece (not shown) connected to the above-described male terminal fitting is provided in the connecting portion 23. A lance 24 is cut and raised on the upper surface of the connecting portion 23, and this engages with a stop surface 18 provided so as to protrude from the inner surface of the cavity 11 of the connector housing 10. The stopper is designed to prevent the terminal fitting 20 from being detached.

  In addition to the above-described locking mechanism, a double locking structure using two retainers 40 as described below is provided in order to further secure the locking. Each of the upper and lower retainers 40 has a main plate portion 41 attached to each of the upper and lower side wall portions of the connector housing 10, and the upper one allows the lock arm 13 to escape to the main plate portion 41 compared to the lower one. The only difference is that the notch 42 is formed. The shape is basically the same, and the upper part will be described.

  On the lower surface side of the main plate portion 41, downward terminal locking projections 43 are provided correspondingly to the cavities 11 so as to protrude sideways and spaced apart from each other, and this is an opening formed in the upper side wall portion of the connector housing 10. 14 penetrates into the cavity 11. In addition, attachment wall portions 44 are formed on the left and right side portions of the main plate portion 41 so as to extend downward, and oblique locking holes 45 are formed therein. On the other hand, two locking projections 15 and 16 are provided on the left and right side walls of the connector housing 10 so as to project at intervals along the extending direction of the locking holes 45 of the retainer 40. Only 15 is fitted in the locking hole 45 (see FIG. 3), and is moved obliquely downward from there and both locking projections 15 and 16 are fitted in the locking hole 45 (see FIG. 1). Further, the retainer 40 can be held. When the retainer 40 is in the state shown in FIG. 1, as shown in FIG. 2, the terminal locking projection 43 moves into the cavity 11 to lock the rear end of the connection portion 23 of the terminal fitting 20. This position is prevented, and this position is hereinafter referred to as “locking position”. In the state where the retainer 40 is shown in FIG. 3, as shown in FIG. 4, the terminal locking projection 43 is retracted upward from the cavity 11 and does not hinder the movement of the terminal fitting 20 in the cavity 11. It becomes.

  Now, on both upper and lower side walls of the connector housing 10, a jig insertion port 17 is formed at a position corresponding to the lance 24 of the terminal fitting 20 so as to penetrate into the cavity 11, and FIG. As shown, the jig 50 can be inserted. The jig 50 has a structure in which a grip portion 52 is attached to the base of the pressing pin 51. By pressing the pressing pin 51 into the jig insertion port 17, the lance 24 of the terminal fitting 20 is pressed in the tilting direction. can do.

  An insertion port closing portion 46 integral with the main plate portion 41 of the retainer 40 is extended from the distal end side of the retainer 40. When the retainer 40 is in the locking position, the jig insertion port 17 of the connector housing 10 is opened. When the insertion port closing portion 46 is closed (see FIG. 2) and the retainer 40 is retracted backward from the locking position, the insertion port closing portion 46 opens the jig insertion port 17.

  The configuration of the first embodiment is as described above, and the operation thereof is as follows. When it is necessary to remove the terminal fitting 20 from the cavity 11 for maintenance or the like, first, each retainer 40 is moved and retracted backward from the locking position. As a result, the locking hole 45 of the retainer 40 is retracted to a position where only the locking protrusion 15 on the rear side is engaged, and the jig insertion port 17 of the connector housing 10 is opened as shown in FIG. Therefore, when the pressing pin 51 of the jig 50 is inserted into the jig insertion port 17 and the lance 24 of the terminal fitting 20 is tilted, the engagement between the lance 24 and the stopper surface 18 of the connector housing 10 is released. Therefore, if the electric wire 30 is held and pulled backward, the terminal locking projection 43 of the retainer 40 has already been retracted to a position that does not hinder the movement of the terminal fitting 20, so that the terminal fitting 20 can be easily pulled out of the cavity 11. it can.

Thus, in this embodiment, since the jig insertion port 17 is formed in the upper and lower side walls of the connector housing 10, the jig insertion port 17 is opened by retracting the retainer 40 from the locking position. The terminal fitting 20 can be easily pulled out by inserting the jig 50 there. For this reason, an effect that maintenance work such as replacement of the terminal fitting 20 becomes extremely simple can be obtained.
Moreover, since the jig insertion port 17 is closed by the insertion port closing portion 46 when the retainer 40 is in the locking position, it is possible to reliably prevent foreign matter from entering the cavity 11 through the jig insertion port 17. it can.

<Reference example>
6 to 12 show reference examples of the female side connector of the retainer side wall mounting type.
The connector housing 60 has a box shape and is provided with a plurality of cavities 61 penetrating in the front-rear direction (left-right direction in FIG. 7). A male terminal insertion port 62 connected to the cavity 61 is opened on the front surface of the connector housing 60, and a male side (not shown) is inserted through the male terminal insertion port 62 in a state where the terminal fitting 70 is inserted into the cavity 61 from the rear. When the terminal fitting is inserted, the terminal fitting 70 is connected.

  The terminal fitting 70 is integrally provided with a wire barrel 71 to which the core wire 81 of the electric wire 80 is caulked and connected, an insulation barrel 72 to which the insulation coating of the electric wire 80 is caulked and fixed, and a connecting portion 73 having a rectangular tube shape in front of them. The elastic contact piece (not shown) connected with the above-mentioned male side terminal metal fitting is provided in the connection part 73 in this shape. A lance 74 is cut and raised on the upper surface of the connection portion 73 and engages with a stop surface 63 provided so as to protrude from the inner surface of the cavity 61 of the connector housing 60, thereby the terminal fitting 70. Are designed to prevent the terminal fitting 70 from being detached. In addition, a stabilizer 75 is provided at the rear of the lance 74, and this is positioned in a guide groove 64 formed on the inner surface of the cavity 61 to stabilize the posture of the terminal fitting 70 in the cavity 61. Yes. As shown in FIG. 8, the stabilizer 75 is located at a position shifted to the right side from the lance 74 when viewed from the front, and does not interfere with the stop surface 63.

In addition to the above-described locking mechanism, a double locking structure using two retainers 90 as described below is provided in order to further secure the removal.
First, as shown in FIG. 7, slit-like openings 65 extending in the width direction of the connector are formed on the upper and lower surfaces of the connector housing 60. Slide plate portions 91 are formed on the upper and lower sides of the retainer 90 so as to form a pair in the vertical direction along the upper and lower surfaces of the connector housing 60, and are attached so as to sandwich the connector housing 60 from above and below. In the attached state, the retainer 90 can move to the left and right of the connector housing 60, and two positioning recesses formed on the corresponding portion side of the connector housing 60 by the engaging projection 92 projecting from the center of the rear end of the slide plate portion 91. 66 is engaged and positioned at the positions shown in FIGS. 6 and 10, respectively. As shown in FIG. 9, a plurality of terminal locking projections 93 are provided side by side with a predetermined interval on the back surface of each slide plate portion 91, and each terminal locking projection 93 is formed in the opening 65. Projecting into each cavity 61. When the retainer 90 is in the position shown in FIG. 6, the terminal locking projection 93 is disengaged from the rear of the stabilizer 75 to allow the terminal fitting 70 to move freely. When the retainer 90 reaches the position shown in FIG. The locking projection 93 is positioned behind the stabilizer 75 to restrict the movement of the stabilizer 75 and prevent the terminal fitting 70 from being pulled out. Therefore, hereinafter, the position of the retainer 90 shown in FIG. 6 is referred to as a “temporary locking position”, and the position shown in FIG. 10 is referred to as a “main locking position”.

  A jig insertion port 67 is formed in the upper and lower side walls of the connector housing 60 at a position corresponding to the lance 74 of the terminal fitting 70. The slide plate portion 91 of the retainer 90 is provided with communication ports 94 at the same pitch and opening size as the jig insertion port 67. When the retainer 90 is in the temporary locking position, FIG. As shown, the jig insertion port 67 and the communication port 94 are continuous, and the jig insertion port 67 is opened. Further, when the retainer 90 is in the final locking position, the jig insertion port 67 is closed without the jig insertion port 67 and the communication port 94 being continuous as shown in FIG.

  As shown in FIG. 12, the locking mechanism releasing jig 100 has a structure in which a grip portion 102 is attached to the base of the pressing pin 101, and the pressing pin 101 is inserted into the jig insertion port 67 and pressed. By doing so, the lance 74 of the terminal metal fitting 70 can be pushed down.

  The configuration of this reference example is as described above, and the operation thereof is as follows. When it is necessary to remove the terminal fitting 70 from the cavity 61 for maintenance or the like, first, the retainer 90 in the final locking position is moved to the temporary locking position. As a result, the terminal locking projection 93 of the retainer 90 is retracted from the rear of the stabilizer 75 of the terminal fitting 70, and the jig insertion port 67 of the connector housing 60 is opened as shown in FIG. Therefore, when the pressing pin 101 of the jig 100 is inserted into the jig insertion port 67 and the lance 74 of the terminal fitting 70 is pushed down, the engagement between the lance 74 and the stop surface 63 of the connector housing 60 is released. Therefore, if the electric wire 80 is held and pulled backward, the terminal locking projection 93 of the retainer 90 has already been retracted to a position that does not hinder the movement of the terminal fitting 70, so that the terminal fitting 70 can be easily pulled out from the cavity 61. it can.

Thus, in this reference example, since the jig insertion ports 67 are formed in the upper and lower side walls of the connector housing 60, the jig insertion port 67 is connected to the communication port by retracting the retainer 90 to the temporary locking position. The terminal fitting 70 can be easily pulled out by opening it in line with 94 and inserting the jig 100 there. For this reason, the effect that maintenance work, such as replacement | exchange of the terminal metal fitting 70, becomes very easy similarly to the said embodiment is acquired.
Moreover, when the retainer 90 is in the final locking position, the jig insertion port 67 is blocked by being inconsistent with the communication port 94, so that foreign matter enters the cavity 61 as in the first embodiment. The effect that it can prevent reliably is obtained.

Second Embodiment
Further, a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, the first embodiment is further improved.
In the process of manufacturing a wire harness, a connector with a retainer temporarily connected is connected to the end of the wire group, and this is wired into a predetermined wiring shape on the assembly drawing board, A step of tapering or the like to harden to a predetermined shape is provided. In that case, the electric wire group before wiring is put on a hanger or the like with the connector connected and is on standby.

  Here, in the connector of the first embodiment, when the retainer 40 is locked at the retracted position (temporary locking position), as shown in FIG. 4, the insertion port closing portion provided in the retainer 40. A deep groove-like gap is formed between the upper and lower wall surfaces of the connector housing 10 where the jig insertion port 17 is opened. Then, when a large number of wire groups are hung on a hanger with such a connector connected, the wires in one wire group enter the gap in the connector of another wire group. There is a fear. If the wire group is removed from the hanger for wiring as it is, there is a concern that the retainer 40 may be pulled out of the connector in which the wire has entered, or the retaining portion of the retainer 40 may be damaged. The connector of the second embodiment is mainly improved to avoid such a situation.

Therefore, in this 2nd Embodiment, as shown in FIGS. 13-15, the protrusion 111 is formed in the inner surface side of the insertion port closing part 46 provided in the retainer 40 over the full width. On the other hand, on the upper and lower wall surfaces of the connector housing 10, when the retainer 40 is moved to the locking position, the protrusions 111 are in contact with the protrusions 111 (parts where the jig insertion port 17 is opened). An escape groove 112 is formed in which 111 is fitted and escaped.
Other structures are the same as those in the first embodiment, and portions having the same functions are denoted by the same reference numerals, and redundant description is omitted.

  With the above structure, as shown in FIG. 14, the retainer 40 is locked at the retracted position, and a gap 110 is formed between the insertion port closing portion 46 and the upper and lower wall surfaces of the connector housing 10. Even so, the protrusion 111 functions to narrow the entrance of the gap 110. Thereby, the electric wire 30 can be prevented from entering the gap 110 as much as possible. On the other hand, as shown in FIG. 15, when the retainer 40 is moved to the locking position, the protrusion 111 fits in the escape groove 112 and is cured by the insertion port closing portion 46 without hindering the movement of the retainer 40. The tool insertion port 17 can be completely closed.

  Instead of providing the protrusion 111 over the entire width of the insertion port closing part 46, the protrusion may be provided only at a part of the insertion port closing part 46 in the width direction. This also prevents the electric wire 30 from entering. In that case, if the protrusion is provided at a position corresponding to the jig insertion port 17, the jig insertion port 17 can be used as a recess for relief, and it is unnecessary to provide a recess for escape again. It is possible to change the shape of the connector housing 10.

<Third Embodiment>
16 and 17 show a third embodiment of the present invention. In the third embodiment, in addition to the second embodiment, a protrusion 115 is formed on the rear side (the right side in FIG. 16) of the portion where the jig insertion port 17 is opened on the upper and lower wall surfaces of the connector housing 10. In the insertion port closing portion 46, a relief groove 116 is formed on the rear side of the above-described projection 111 to fit and release the projection 115 on the connector housing 10 side. Both the protrusions 111 and 115 are set so as not to interfere with each other while the retainer 40 moves between the locking position and the retracted position.

  In the third embodiment, as shown in FIG. 16, when the retainer 40 is locked in the retracted position, the gap between the insertion port closing portion 46 and the wall surface of the connector housing 10 due to the presence of both protrusions 111 and 115. The entrance of 110 is further narrowed, and the electric wire 30 is more reliably prevented from entering the gap 110. When the retainer 40 is moved to the locking position, as shown in FIG. 17, the insertion slot closing portion 46 is inserted into the jig while the protrusions 111 and 115 are fitted in the corresponding relief grooves 112 and 116, respectively. The mouth 17 is completely closed.

In addition, while providing a protrusion only in the upper and lower wall surface side of the connector housing 10, it is good also as a structure which provides the recessed part which fits the protrusion and makes it escape on the insertion port closing part 46 side. Also in this case, the function of narrowing the gap 110 can be achieved to the same extent as in the second embodiment.
The present invention is not limited to the embodiments described with reference to the above description and drawings, and various modifications can be made without departing from the scope of the invention.

In addition to the technical ideas described in the claims, the technical ideas described below can be understood from the above-described embodiments.
By providing a cavity into which a terminal fitting is inserted in the connector housing, the terminal fitting inserted into the cavity is held in a retaining state by a locking mechanism, and a retainer is mounted on the connector housing in a locking position. In what is to be double-locked so that the terminal metal fitting is in a state to prevent further detachment,
The retainer is provided with a terminal locking projection that is positioned in the cavity at the locking position and locked to the terminal fitting,
A jig insertion opening for inserting a jig for releasing the locking by the locking mechanism is formed in the side wall of the connector housing, and the terminal locking protrusion of the retainer is placed in the cavity. An opening for projecting is formed on the same surface as the jig insertion port is provided,
The retainer is provided with an insertion port closing portion that closes the jig insertion port when in the locking position and opens the jig insertion port when retracted from the locking position,
A stepped portion is formed on the outer surface side of the side wall portion so as to be recessed inward, and the retainer is attached to the stepped portion, and when the retainer is disposed at the locking position, the bottom surface of the stepped portion is formed. And the terminal locking projection is locked to an inner surface of a portion of the side wall portion between the jig insertion port and the opening, and the stepped portion of the side wall portion. A connector characterized in that the outer surface around the outer surface of the retainer and the outer surface of the retainer at the locking position are flush with each other.

The perspective view of the connector concerning a 1st embodiment of the present invention. Similarly longitudinal section Similarly, a perspective view showing a state in which the retainer is retracted from the locking position Similarly, a longitudinal sectional view showing the retainer retracted from the locking position Similarly, a longitudinal sectional view showing how the jig is used Perspective view of connector according to reference example Similarly longitudinal section Similarly, a longitudinal front view of the retainer in the temporary locking position A perspective view of the retainer A perspective view of the retainer in the final locking position Similarly, a longitudinal front view of the retainer in the fully locked position Similarly, a longitudinal sectional view showing how the jig is used The perspective view of the connector of the state which has the retainer which concerns on 2nd Embodiment of this invention in a retracted position Similarly longitudinal section Similarly, a longitudinal sectional view of the retainer in the locked position The longitudinal cross-sectional view of the connector in the state which the retainer which concerns on 3rd Embodiment of this invention exists in a retracted position Similarly, a longitudinal sectional view of the retainer in the locked position

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 60 ... Connector housing 11, 61 ... Cavity 14, 65 ... Opening part 17, 67 ... Jig insertion port 18, 63 ... Stopping surface 20, 70 ... Terminal metal fitting 24, 74 ... Lance 30 ... Electric wire 40, 90 ... Retainers 43, 93 ... Terminal locking projections 46 ... Insertion port closing part 50, 100 ... Jig 91 ... Slide plate part 94 ... Communication port 110 ... Gap 111 ... Projection 112 ... Relief groove 115 ... Relief groove 116 ... Relief groove

Claims (6)

By providing a cavity into which a terminal fitting is inserted in the connector housing, the terminal fitting inserted into the cavity is held in a retaining state by a locking mechanism, and a retainer is mounted on the connector housing in a locking position. In what is to be double-locked so that the terminal metal fitting is in a state to prevent further detachment,
The retainer has a main plate portion, and the main plate portion is provided with a terminal locking protrusion that is positioned in the cavity at the locking position and is locked to the terminal fitting,
Mounting wall portions are formed on both the left and right sides of the main plate portion, and locking holes are formed in the mounting wall portions. On the left and right side walls of the connector housing, the locking holes can be locked. A locking projection is provided to position the retainer at a position where the terminal locking projection enters the cavity and locks to the terminal fitting and the terminal locking projection retracts from the cavity. Each can be held at a position that does not hinder the movement of the metal fitting in the cavity,
A jig insertion port for inserting a jig for releasing the locking by the locking mechanism is formed on the outer surface side of the side wall portion to which the main plate portion is attached in the connector housing , and the jig insertion hole is formed in the connector housing. the provided surface is stepped portion formed so that recessed inward while leaving front portion than the jig insertion opening and the inside the stepped portion, together with the jig insertion opening is formed, the said retainer An opening for projecting the terminal locking protrusion into the cavity is formed behind the jig insertion hole ,
An insertion port closing part is integrally extended at the tip of the main plate part,
When the retainer is disposed at the locking position,
The terminal locking protrusion is locked to the inner surface of the side wall portion so as to sink into the portion between the jig insertion port and the opening, and the main plate portion and the The jig insertion port is closed by covering the jig insertion port from the outer surface side, and the jig insertion port is closed in the state where the jig insertion port is closed. The outer surface and the insertion port closing part are flush with each other,
The connector is characterized in that the insertion port closing portion opens the jig insertion port when the retainer is retracted from the locking position. The terminal fitting locking mechanism is composed of a lance formed in a cut-and-raised shape on the terminal fitting, and a stop surface formed on the cavity inner surface of the connector housing and engaged with the lance, and the jig insertion The connector according to claim 1, wherein the mouth is formed so as to pass through a wall surface of the connector housing and to push the lance in a tilting direction by the jig. The retainer body is attached to the locking position by moving the retainer body along the insertion direction of the terminal fitting on the side wall portion of the connector housing, and the retainer body is positioned in the cavity at the locking position. The connector according to claim 1 or 2, wherein a terminal locking protrusion for locking the terminal fitting and an insertion port closing portion for closing the jig insertion port are provided integrally. . The retainer moves so as to open the jig insertion port while being spaced apart from the wall surface of the connector housing where the jig insertion port is opened, and the retainer can be retracted from the locking position, and The connector according to claim 1, wherein the connector can be temporarily locked at the retracted position. At least one of the insertion port closing portion and the wall surface of the connector housing in which the jig insertion port is opened narrows the gap between the insertion port closing portion and the wall surface when the retainer is in the retracted position. A protrusion is formed on the opposite side of the insertion port closing part and the wall surface on which the protrusion is formed, and the protrusion is moved when the retainer moves to the locking position. 5. The connector according to claim 4, wherein a recess is formed to be fitted and escaped. 6. The connector according to claim 5, wherein the projection is formed on the insertion port closing portion side, and the jig insertion port also serves as a recess for fitting the projection to escape.

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