JPH1050381A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a retainer to be mounted along an outer face of a connector housing from being slackened, so as to be separated from the outer face of that connector housing. SOLUTION: This connector engages an engagement protrusion portion 40 formed on a lower face plate 34 of a retainer 30 with a dovetail groove 17 formed on a lower face of a connector housing 10, and a lower face plate 34 is restricted from being slackened in a direction spaced from the lower face of the connector housing. Thus, even if a female terminal is half-inserted, the fact that a secondary locking portion 41 is loaded over a secondary locking protrusion 24, and the retainer 30 moves to the main locking position is certainly prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector in which a retainer is fitted along an outer surface of a connector housing.

[0002]

2. Description of the Related Art A connector in which a retainer is mounted along the outer surface of a connector housing is disclosed in Japanese Patent Laid-Open No. Hei 3-205770. This is, as shown in FIG.
The connector housing 1 includes a U-shaped retainer 2 that is selectively attached to the connector housing 1 at a temporary locking position and a final locking position. The retainer 2 is attached along the upper surface, the side surface, and the lower surface of the connector housing 1. The upper surface of the connector housing 1 is provided with a horizontally long opening 1B communicating with the cavity 1A. In this opening 1B, a plurality of locking projections 2A of the retainer 2 are provided.
Project into the corresponding cavities 1A (see FIG. 12). Insert terminal 3 into retainer 2
Is temporarily locked, but at this time, the locking projection 2A
Is shifted to a position where it does not interfere with the locking piece 3A of the terminal 3, so that the insertion of the terminal 3 is not hindered. After the terminal 3 is properly inserted, when the retainer 3 is slid in the lateral direction (a direction orthogonal to the insertion direction of the terminal 3) from the temporary locking position to the final locking position, the locking projection 2A is locked. The terminal 3 is moved to a position where the terminal 3 is locked from behind, and the movement of the terminal 3 in the removal direction is restricted. If the terminal 3 is in a half-inserted state, the locking projection 2A interferes with the locking piece 3A when the retainer 2 is moved to the final locking position. Sliding operation to the position cannot be performed smoothly. That is, the insertion state of the terminal 3 can be detected based on whether the retainer 2 can be smoothly moved to the final locking position. However, in the connector described above, the retainer 2 is placed in a state where the half-inserted terminal 3 exists.
When the locking projection 2A is pushed into the final locking position by a strong force, the retainer 2 may move to the final locking position while flexing so as to expand as the locking projection 2A rides on the locking piece 3A. When the retainer 2 expands and bends in this manner, not only cannot the terminal 3 which is half-inserted be detected, but also it becomes impossible to hold the terminal 3 which has been properly inserted in the removal restricted state. Means for restricting the deflection have been desired.

In addition to the above connector, a connector having a connector housing, a U-shaped retainer that is fitted into the connector housing from the side, and a hood that surrounds the fitting portion of the retainer in the connector housing ( (Not shown) are known. With this connector, it is not possible to fit the retainer directly into the connector housing from the outside of the hood, so the connector housing and the hood are separate parts, and the hood is assembled to the connector housing after the retainer is attached to the connector housing. Has become. However, this connector has a problem that not only the number of parts increases but also the number of assembly steps increases as the number of parts increases, resulting in an increase in cost.

The present invention has been made in view of the above circumstances, and the invention according to claims 1 to 3 is such that the retainer attached along the outer surface of the connector housing is separated from the outer surface of the connector housing. It is intended to prevent bending. Another object of the present invention is to reduce the number of parts and man-hours.

[0005]

According to a first aspect of the present invention, there is provided a connector housing into which a terminal is inserted, and a cantilevered plate-like portion having the plate-like portion along the outer surface of the connector housing. A retainer for holding the terminal in an inserted state by being attached to the outer surface of the connector housing and the plate-shaped portion, allowing a mounting operation of the retainer to the connector housing, and moving the plate-shaped portion away from the connector housing. It is characterized in that a displacement restricting means for restricting the displacement of the is provided.

According to a second aspect of the present invention, in the first aspect of the present invention, the displacement restricting means is provided with a groove formed along a mounting direction of the retainer with respect to the connector housing, and is movable in the mounting direction with respect to the groove. It is characterized in that it comprises a fitting projection to be fitted, and the groove and the fitting projection can be engaged so as to regulate the separation of the plate-like member from the connector housing. According to a third aspect of the present invention, in the first or second aspect of the present invention, the retainer can be attached to the connector housing from a side, and the connector housing has a hood portion surrounding the periphery thereof. It is characterized in that an operation hole is formed on the side surface of the hood portion corresponding to the retainer mounting region in the connector housing and the opening edge is closed endlessly. .

According to a fourth aspect of the present invention, there is provided a connector housing into which a terminal is inserted, a retainer which is attached to the connector housing from a side to hold the terminal in an inserted state, and the connector housing surrounds the periphery thereof. A hood portion integrally formed with the hood portion, and an operation hole is formed on a side surface of the hood portion corresponding to an attachment region of the retainer in the connector housing and an opening edge is closed endlessly. Has features.

[0008]

According to the first aspect of the present invention, even if the plate-like portion of the retainer receives a force in a direction away from the outer surface of the connector housing due to, for example, interference with the terminal in a half-inserted state, the displacement restricting means. This prevents the plate-like portion from flexing away from the outer surface of the connector housing. According to the second aspect of the present invention, the engagement between the groove and the fitting projection not only prevents the retainer from being separated from the connector housing, but also allows the retainer to move along a predetermined path when the retainer is attached. Since it is guided to move, mounting operability is good.

In the invention of claims 3 and 4,
The retainer can be attached to the connector housing in the hood by passing the operation hole from outside the hood. Since the connector housing and the hood do not need to be separate parts, the number of parts is small and the number of assembly steps is small, so that workability is excellent.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION

<First Embodiment> Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. The connector of this embodiment includes a connector housing 10 into which the female terminal 20 is inserted, and a retainer 30 attached to the connector housing 10 to hold the female terminal 20 in an inserted state.

The female terminal 20 is formed by integrally forming a square tube portion 21 and an electric wire fixing portion 22 in a front-rear direction.
A lance 23 that protrudes obliquely rearward in a cantilever manner is formed on the upper surface of 1 by cutting and raising, and a secondary locking projection 24 is formed on the lower surface of the cylindrical portion 21 by beating. In the connector housing 10, there are formed cavities 11 of a total of four chambers, each of which is divided into upper and lower two stages and each stage has two chambers.
A female terminal 20 is inserted into each cavity 11 through an opening at the rear thereof. A primary locking projection 12 is formed on the ceiling surface of the cavity 11. The lance 23 is inserted into the primary locking projection 12 when the female terminal 20 is properly inserted.
Is locked, whereby the female terminal 20 is in the primary locked state, and the movement in the extracting direction is regulated.

On the upper surface of the connector housing 10, a dovetail groove 13 in which the opening width on the outer surface side is smaller than the opening width on the inner side is formed in the left-right direction (the direction orthogonal to the insertion direction of the female terminal 20). A fitting projection 35 of a retainer 30 described later is slidably engaged with the dovetail groove 13. Similarly, a temporary locking groove 14 and a full locking groove 15 extending in the front-rear direction are provided on the upper surface of the connector housing 10.
Are formed shifted from each other in the left-right direction. The locking claw 36 of the retainer 30 is locked in the temporary locking groove 14 and the main locking groove 15.

A retainer mounting hole 16 is formed in the connector housing 10 so as to penetrate between the upper cavity 11 and the lower cavity 11 in the left-right direction. The upper part of the retainer mounting hole 16 is the upper cavity 1.
1 and across the lower part thereof, and the secondary locking projection 24 of the female terminal 20 is connected to the retainer mounting hole 16.
Pass across the top of the. The intermediate plate 33 of the retainer 30 is fitted into the retainer mounting hole 16 without play.

The front area of the lower cavity 11 is open on the lower surface of the connector housing 10, and the primary locking projection 12 of the female terminal 20 is moved from the opening to the lower surface of the connector housing 10 so as to move. It has become. Behind this opening area, a retainer 3 is provided.
0 is attached so as to close the opening. Behind the opening area of the cavity 11, a dovetail groove (displacement restricting means which is a constituent feature of the present invention) 17 having an inverted trapezoidal cross-section in which the opening width on the outer surface side is smaller than the opening width on the inner side is formed in the left-right direction. Have been. The dovetail groove 17 is adapted to be slidably engaged with a fitting projection (displacement restricting means, which is a component of the present invention) 40 of a retainer 30 described later.

Further, the connector housing 10 is integrally formed with a hood portion 18 surrounding the entire periphery thereof. When viewed from the front of the hood portion 18, an operation hole 19 that opens in a rectangular shape is formed on the left side surface (the left side in FIGS. 2 and 5). The operation hole 19 is opened corresponding to a mounting area of the retainer 30 on the side surface of the connector housing 10. The retainer 30 is attached to the connector housing 10 directly from outside the hood 18 by passing through the operation hole 19. It is supposed to be. Also,
The opening edge of the operation hole 19 is not open to the front edge of the hood portion 18 and is closed over the entire circumference.
As a result, the front edge of the hood portion 18 is continuous over the entire circumference.

The retainer 30 includes a side plate 31 and the side plate 3.
2 and 5 from the top, middle height, and bottom of 1, respectively.
Upper plate 32 and intermediate plate 33 extending cantileverly to the right of
And a lower plate (a plate-like portion which is a constituent feature of the present invention) 34. On the lower surface of the upper surface plate 32, a fitting protrusion 35 extending in the left-right direction and capable of engaging with the dovetail groove 13 of the connector housing 10 is formed. A locking claw 36 that can be selectively locked with the groove 15 is formed.

A pair of left and right secondary locking portions 37 are formed on the upper surface of the intermediate plate 33, and a relief groove 38 is formed between the two secondary locking portions 37. The secondary locking portion 37 locks the female terminal 20 from the rear to the secondary locking projection 24 of the female terminal 20 that is properly inserted into the upper cavity 11, thereby setting the female terminal 20 to a secondary locking state and pulling out the female terminal 20 in the extracting direction. Restrict movement. The escape groove 38 allows the secondary locking projection 24 to pass through without interfering with the intermediate plate 33 when the female terminal 20 is inserted with the retainer 30 temporarily locked.

Further, a left front edge of the escape groove 38,
The leading edge of the intermediate plate 33 has a guiding surface 3
9 are formed. The guide surface 39 faces obliquely with respect to the front, rear, left and right directions, and when there is the female terminal 20 inserted up to the position immediately before the regular insertion position, the guide terminal 39 is moved from the temporary locking position of the retainer 30 to the main lock. With the movement to the stop position, the guide surface 39 engages with the secondary locking projection 24 to push the female terminal 20 to the normal insertion position.

On the upper surface of the lower plate 34, a fitting protrusion 40 which is slidably engaged with the dovetail groove 17 of the connector housing 10 is formed in the left-right direction. Fitting projection 4
0 is an inverted trapezoidal cross section in which the upper width is wider than the lower width. Therefore, when the fitting protrusion 40 is engaged with the dovetail groove 17, the fitting protrusion 40 is
7 is restricted from being displaced downward, so that the lower plate 34 is restricted from being displaced downward from the lower surface of the connector housing 10. Similarly, on the upper surface of the lower plate 34, similarly to the intermediate plate 33, a pair of left and right secondary locking portions 41 and an escape groove 42 are formed, and the left front edge of the escape groove 42 and the lower surface plate 34 At the front edge at the tip, there are guide surfaces 43, respectively.
Are formed.

The retainer 30 is selectively attached to the connector housing 10 at a temporary locking position and a final locking position. In the mounted state, the upper plate 32 and the lower plate 34
Along the upper and lower surfaces of the connector housing 10, respectively, so that the intermediate plate 33 is fitted into the retainer mounting hole 16 in a skewered manner. In the temporarily locked state, the side plate 31 of the retainer 30 is separated from the side surface of the connector housing 10,
In the fully locked state, the side plate 31 comes into close contact with the side surface of the connector housing 10. If the mating connector housing (not shown) is fitted with the retainer 30 in the temporarily locked state, the mating becomes impossible because the front edge of the mating connector housing abuts against the side plate 31. If 30 is in the fully locked state, the mating connector housing can be fitted. That is, the locked state of the retainer 30 can be determined based on whether or not the mating connector housing is fitted.

Next, the operation of the present embodiment will be described. When assembling the connector of the present embodiment, first,
From the outside of the hood portion 18 through the operation hole 19, the retainer 3
0 is temporarily locked to the connector housing 10. At this time,
As shown in FIG. 3, the dovetail groove 1 of the connector housing 10
The fitting projections 35, 40 of the retainer 30 are engaged with 3, 17, respectively. Then, since the retainer 30 is guided by the dovetail grooves 13 and 17, the retainer 30 reliably moves to the temporary locking position along a predetermined path without moving back and forth. Then, as shown in FIG. 2, the retaining claw 36 of the retainer 30 is locked in the temporary locking groove 14 of the connector housing 10, so that the retainer 30 is held in the temporarily locked state. In the provisionally locked state, as shown in FIG. 2, the escape grooves 38 and 42 are located on the passage of the secondary locking projection 24 of the female terminal 20 shown on the left side of FIG.
Is located along the left side of the passage of the secondary locking projection 24 of the female terminal 20 shown on the right side of FIG.

When the female terminal 20 is inserted into the cavity 11 in such a state, the insertion operation is smoothly performed without the secondary locking projection 24 of the female terminal 20 interfering with the retainer 30. When the female terminal 20 reaches the normal insertion position, as shown in FIG.
Since the female terminal 20 is locked from the front, the female terminal 20 is in a primary locked state, and the movement in the extracting direction is restricted. When the female terminal 20 is inserted to the regular insertion position,
The retainer 30 is moved from the temporary locking position to the final locking position. This operation is performed by inserting a finger into the operation hole 19 of the hood portion 18 and pressing the side plate 31. Again,
Due to the engagement between the dovetail grooves 13 and 17 and the fitting projections 35 and 40, the retainer 30 reliably moves along a predetermined path without floating back and forth. As the retainer 30 moves, the portion of the upper plate 32 away from the fitting projection 35 is slightly bent upward, and the locking claw 36 is disengaged from the temporary locking groove 14 so that the final locking groove 1
5 and the retainer 30 is held at the final locking position. In this state, as shown in FIG.
Since the female terminals 7 and 41 are locked from the rear with respect to the secondary locking projections 24, the female terminal 20 is in the secondary locking state, and the movement in the extracting direction is restricted. As described above, the assembling of the saw of the present embodiment is completed, and then the mating connector housing may be fitted.

Next, a description will be given of a case where all the female terminals 20 do not reach the normal insertion positions when the female terminals 20 are inserted. When the position of the female terminal 20 in the half-inserted state at this time is extremely close to the regular insertion position, when the retainer 30 is moved from the temporary locking position to the full locking position, the guide surfaces 39 and 43 of the retainer 30 are moved. The force that engages with the rear end corner of the secondary locking projection 24 of the female terminal 20 at the half-inserted position and pushes the retainer 30 is applied to the guide surface 3.
The inclination of 9 and 43 results in a force for pushing the secondary locking projection 24 forward, whereby the half-inserted female terminal 20 is pushed to the normal insertion position.

However, when the position of the half-inserted female terminal 20 is far from the regular insertion position as shown in FIG. 4, for example, the guide surfaces 39 and 43 cannot be locked on the rear end corner of the secondary locking projection 24. When the retainer 30 is pushed into the final locking position, the secondary locking portion 37 abuts against the secondary locking projection 24 from the side, so that the retainer 30 is moved to the full locking position. It cannot be moved. That is, since the retainer 30 cannot be pushed into the final locking position,
The existence of the female terminal 20 in the half-inserted state becomes clear. Even if the mating connector housing is fitted without noticing the presence of the half-inserted female terminal 20 at this time, the retainer 30 projects laterally beyond the final locking position, so that the mating connector housing But retainer 30
And the fitting becomes impossible. Therefore, at this point, it is understood that the retainer 30 is in the temporary locking position, that is, the half-inserted female terminal 20 exists.

When the half-inserted female terminal 20 exists in the lower cavity 11, the retainer 30
If the lower plate 34 of the retainer 30 is bent downward, the secondary locking portion 41 moves to the full locking position while riding over the secondary locking projection 24. You will be doing. However, in the present embodiment, the dovetail groove 17 of the connector housing 10 and the retainer 3
0, the lower surface plate 3 is engaged.
Since the downward displacement of the secondary locking portion 4 is restricted,
1 cannot get over the secondary locking projection 24. Therefore, the lower cavity 11
If there is a half-inserted female terminal 20 in
The movement of the retainer 30 to the final locking position is reliably prevented,
Thus, the detection of the half-inserted female terminal 20 is reliably performed.

The intermediate plate 3 which engages with the secondary locking projection 24 of the female terminal 20 inserted into the upper cavity 11
3 is a state in which play in the vertical direction is restricted in the retainer mounting hole 16, so that the secondary locking portion 37 of the intermediate plate 33 cannot climb over the secondary locking projection 24. ing. Therefore, even when the impossible half-inserted female terminal 20 is present in the upper cavity 11, the movement of the retainer 30 to the full locking position is reliably prevented, and the existence of the half-inserted female terminal 20 is ensured. Is to be understood.

As described above, in the present embodiment, the engagement between the dovetail groove 17 having the trapezoidal cross section and the fitting projection 40 ensures that the lower surface plate 34 bends away from the lower surface of the connector housing 10. Thus, the insertion state of the female terminal 20 can be detected with high reliability. Further, the retainer 30 is provided with the dovetail groove 1.
The play in the front-rear direction and the vertical direction (the direction perpendicular to the mounting direction of the retainer 30) is restricted by the engagement of the fitting projections 35 and 40 with the fitting projections 35 and 40 so that the slider moves along a predetermined path. As a result, not only is the mounting operability excellent, but also the locking claw 36 is
5 can be reliably locked.

Further, in the present embodiment, the operation hole 19 that allows the retainer 30 to penetrate is provided on the side surface of the hood portion 18, so that the retainer 30 is provided from the outside of the hood portion 18.
Can be directly attached to the connector housing 10. Therefore, the number of parts and the number of assembling steps are reduced as compared with a structure in which the connector housing and the hood are separated and the hood is assembled to the connector housing after the retainer is attached to the connector housing. In the state where the retainer 30 is temporarily locked, the retainer 30 is located inside the hood portion 18 as shown in FIG. 2, so that another member hits from the side of the hood portion 18 during transportation, for example. However, there is no possibility that other members may interfere with the retainer 30, and therefore, careless movement of the retainer 30 from the temporary locking position to the full locking position is prevented.

In the case where the retainer is temporarily locked from the front surface of the hood to the connector housing without being provided with an operation hole in the hood, and then laterally moved to fully lock the retainer, the retainer is narrow because the inside of the hood is narrow. In contrast to the necessity of a jig for lateral movement, in the present embodiment, a finger can be inserted from the operation hole 19 and the retainer 30 can be pushed sideways, so that the jig is unnecessary. In the conventional example shown in FIG. 10, the jig is not used by forming the notch 5 for inserting a finger into the hood 4, but the notch 5 is formed at the front edge of the hood 4. Since the hood 4 is opened, the strength of the hood 4 is reduced, and the retainer 2 is not moved from the temporarily locked position to the fully locked position due to interference of other members from the oblique front of the hood 4 during transportation. There is a risk that it will move easily. On the other hand, in the present embodiment in which the opening edge of the operation hole 19 is closed, the strength of the hood portion 18 is impaired because the front edge of the hood portion 18 is connected over the entire circumference. It has not been done. Moreover, even if the other member hits the hood portion 18 from obliquely forward, there is no possibility that the other member will interfere with the retainer 30, so that the retainer may be inadvertently moved from the temporary locking position to the full locking position. There is no.

Further, when it is assumed that the retainer is fully locked immediately without being temporarily locked, a two-action operation in which the direction is changed is not performed by temporarily moving the retainer from the front of the hood portion and then moving the retainer sideways. In contrast, in the present embodiment, since the operation direction when mounting the retainer 30 is only the horizontal direction, only one action is required, and the operability is excellent. Further, in the type in which the retainer is temporarily locked to the connector housing from the opening on the front surface of the hood portion and then slid laterally and then fully locked, the space between the connector housing and the hood portion is narrow, so that the retainer is in the horizontal direction. In the present embodiment, there is no such a restriction, while there is a situation that the moving stroke to the target cannot be made large. Therefore, the position of the retainer 30 in the temporarily locked state is changed, and for example, the retainer 30 is
If it is made to protrude from the hood portion 18 to the outside, a large movement stroke from the temporary locking position to the full locking position can be ensured. As the travel stroke increases,
The inclination angles of the guide surfaces 39 and 43 for pushing the half-inserted female terminal 20 in the normal direction can be set smaller than the pushing direction of the retainer 30, whereby the terminal is pushed in the normal position direction. When the retainer 30
Can be reduced in operation resistance, and operability can be improved.

<Embodiments 2 to 4> Next, Embodiments 2 to 4 which embody the present invention will be described with reference to FIGS. Embodiment 2 to Embodiment 4
Is different from the first embodiment in the configuration of the displacement restricting means. Other configurations are the same as those in the first embodiment, and thus the same configurations are denoted by the same reference numerals, and description of the structures, operations, and effects will be omitted. The displacement restricting means according to the second embodiment shown in FIG. 8 includes a groove 51 formed on the lower surface of the connector housing 10 and a fitting projection 52 formed on the lower plate 34 of the retainer 30. The width of the groove 51 and the fitting projection 52 on the lower surface side of the connector housing 10 is smaller than the width of the cavity 11 side (upper side in the figure) in a step-like manner. No.

The displacement restricting means of the third embodiment shown in FIG.
It comprises a groove 53 formed on the lower surface of the connector housing 10 and a fitting projection 54 formed on the lower plate 34 of the retainer 30. The cross section of the groove 53 and the fitting protrusion 54 has an arc shape over an angle range larger than 180 °. The displacement restricting means according to the fourth embodiment shown in FIG. 10 includes an L-shaped fitting projection 55 formed on the lower surface of the connector housing 10.
And a groove 56 formed between the lower surface of the connector housing 10 by the fitting protrusion 55 and an inverted L-shaped fitting protrusion 57 formed on the lower surface plate 34 of the retainer 30; The groove 58 is formed between the lower surface plate 34 and the groove 57. The distal end of the fitting projection 55 of the connector housing 10 is engaged with the groove 58 of the retainer 30 from the rear (rightward in FIG. 10), and the distal end of the fitting projection 57 of the retainer 30 is Groove 56
Is engaged from the front. In this deformation restricting means, both fitting projections 55 and 57 are arranged in the front-back direction (the left-right direction in FIG. 10).
Since the intermediate plate 33 is tightly fitted into the retainer mounting hole 16, the retainer 30 is prevented from floating in the front-rear direction with respect to the connector housing 10. , 57 do not come off. <Other Embodiments> The present invention is not limited to the embodiments described above with reference to the drawings. For example, the following embodiments are also included in the technical scope of the present invention. Various changes can be made without departing from the scope of the invention.

(1) In the displacement restricting means of the above embodiment, the case where the dovetail groove 17 is provided in the connector housing 10 and the fitting projection 40 is provided in the retainer 30 has been described. It is good also as composition provided in a retainer and providing a fitting projection in a connector housing. (2) In the above embodiment, the case where the dovetail grooves 13 and 17 are opened upward and downward (in the direction facing the upper surface plate 32 and the lower surface plate 34 of the retainer 30) has been described. The dovetail can also be opened in the lateral direction in FIGS.

(3) In the above embodiment, the case where both the upper plate 32 and the lower plate 34 of the retainer 30 are restricted in displacement has been described. According to the invention according to claims 1 to 3, the female terminal is provided. The top plate 32 that does not directly engage with the plate 20 may be configured not to restrict the displacement. (4) In the above embodiment, the case where the connector housing is the female connector housing 10 having the female terminal 20 has been described, but the present invention is also applicable to the case where the connector housing is the male connector housing having the male terminal. Can be.

(5) The invention according to claims 1 and 2 can also be applied to a connector without the hood portion 18. (6) The invention according to Claims 1 to 3 is provided with a hood portion having no operation hole, and the retainer is temporarily inserted into the hood portion from the opening on the front surface and temporarily locked. The present invention can also be applied to a configuration in which it is moved in the direction and fully locked. (7) The invention according to claims 1 to 3 is not limited to the case where the mounting direction of the retainer is a direction perpendicular to the insertion direction of the terminal, but also in the direction along the insertion / extraction direction of the terminal or the insertion direction of the terminal. The present invention can be applied to a case where the direction is oblique to the direction.

(8) The invention according to claim 4 can also be applied to a device which is not provided with the dovetail groove 17 and the fitting projection 40 as the displacement restricting means. (9) The invention according to claim 4 is not limited to the case where the retainer 30 includes the upper surface plate 32 and the lower surface plate 34 along the outer surface of the connector housing 10 as in the above embodiment, but the retainer is skewered into the connector housing. The present invention can also be applied to a case where the device is mounted on a vehicle.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a female terminal and a retainer are removed from a connector housing in a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state in which a retainer is temporarily locked in the first embodiment.

FIG. 3 is a longitudinal sectional view showing a state in which the female terminal is inserted with the retainer temporarily locked in the first embodiment.

FIG. 4 is a horizontal sectional view showing a state in which the female terminal is inserted with the retainer temporarily locked in the first embodiment.

FIG. 5 is a cross-sectional view showing a state in which the retainer is fully locked in the first embodiment.

FIG. 6 is a longitudinal sectional view showing a state in which the female terminal is properly inserted and the retainer is fully locked in the first embodiment.

FIG. 7 is a horizontal sectional view showing a state in which the female terminal is properly inserted and the retainer is fully locked in the first embodiment.

FIG. 8 is a sectional view showing a displacement restricting unit according to the second embodiment.

FIG. 9 is a sectional view showing a displacement restricting unit according to the third embodiment.

FIG. 10 is a sectional view showing a displacement restricting unit according to the fourth embodiment.

FIG. 11 is a perspective view showing a state in which a retainer is removed from a connector housing in a conventional example.

FIG. 12 is a longitudinal sectional view showing a state where a terminal is properly inserted and a retainer is attached in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Connector housing 17 ... Dove groove (displacement restricting means) 18 ... Hood part 19 ... Operation hole 20 ... Female terminal 30 ... Retainer 34 ... Lower surface plate (plate-shaped part) 40 ... Fitting protrusion (displacement restricting means) 51; 53, 56, 58 ... groove (displacement restricting means) 52, 54, 55, 57 ... fitting projection (displacement restricting means)

Claims (4)

[Claims] 1. A connector housing into which a terminal is inserted, and a cantilevered plate-shaped portion, the terminal being inserted into the inserted state by being attached to the connector housing along an outer surface thereof along the plate-shaped portion. A retainer for holding the connector housing, the outer surface of the connector housing and the plate-shaped portion allowing the mounting operation of the retainer to the connector housing, and displacing the plate-shaped portion in a direction away from the connector housing. A connector provided with displacement restricting means for restricting pressure. 2. A groove formed along a direction in which a retainer is attached to a connector housing, the displacement restricting means comprising:
A fitting projection movably fitted in the mounting direction with respect to the groove, wherein the groove and the fitting projection regulate the separation of the plate member from the connector housing. 2. The device according to claim 1, wherein the engagement is enabled.
The connector described. 3. A hood portion is provided integrally with the connector housing so as to surround the connector housing, and a side surface of the hood portion is provided on the connector housing. 3. The connector according to claim 1, wherein an operation hole is formed in the connector housing, the operation hole being opened corresponding to a mounting area of the retainer in the connector housing, and an opening edge is closed endlessly. 4. . 4. A connector housing into which a terminal is inserted, a retainer attached to the connector housing from the side to hold the terminal in an inserted state, and integrally formed with the connector housing so as to surround the periphery thereof. And an operation hole which is opened on the side surface of the hood corresponding to the mounting area of the retainer in the connector housing and whose opening edge is closed endlessly. And connectors.