JP4432790B2 - connector - Google Patents

Description

  The present invention relates to a connector.

Conventionally, there has been known a connector including a housing in which a plurality of cavities into which terminal fittings can be inserted is formed, and a retainer that is inserted into a retainer mounting hole formed in the housing and holds the terminal fitting in a state of retaining. ing. Further, in this type of connector, the retainer mounting hole opens over the three surfaces of the lower surface and both side surfaces of the housing, and the retainer is inserted obliquely upward from the opening of the retainer mounting hole on the lower surface of the housing. There are some (see, for example, Patent Document 1 below).
JP 2004-31032 A

  By the way, in the housing described above, due to the retainer mounting hole formed over the three surface regions, the portion connected from the front side to the rear side across the retainer mounting hole is thin. Therefore, when molding the mold, from the region for molding the front side to the region for molding the rear side (or from the region for molding the rear side to the region for molding the front side). Resin did not flow easily, and this was a factor that deteriorated moldability.

  The present invention has been completed based on the above circumstances, and an object thereof is to improve resin fluidity.

As means for achieving the above object, the invention of claim 1 is characterized in that a housing in which a cavity into which a terminal fitting is inserted is formed, and a retainer mounting hole formed in the housing is inserted into the cavity. A retainer for holding the inserted terminal fitting in a retaining state, and the retainer mounting hole is a three-surface region of an outer surface of the housing that faces the insertion direction of the retainer and two surfaces adjacent thereto. The retainer has an insertion direction set obliquely with respect to the insertion direction of the terminal fitting, and the cavity is divided into front and rear through the retainer mounting hole. a connector is notched on at least one surface of said two surfaces in the housing, the retainer mount hole Bridge across between the front and rear regions across the mouth are bridged, said bridge portion guide portion extending in the insertion direction of the retainer is formed, the hole edge and the guide portion of the retainer mount hole A guide hole is formed therethrough, and the retainer includes a retainer main body portion that is fitted into the retainer mounting hole, and an outer surface of the retainer main body portion that protrudes into the guide hole. A configuration is provided in which a guided portion is formed that is fitted from the inside and that is in sliding contact with the guide portion in the process of moving from the temporary locking position to the final locking position to guide the movement of the retainer. It has the characteristics.

According to a second aspect of the present invention, in the first aspect of the present invention, the retainer is displaceable between a temporary locking position that allows insertion / extraction of the terminal fitting and a final locking position that locks the terminal fitting. The bridge portion is formed with a stopper portion connected to one end of the guide portion and extending in a direction intersecting with the insertion direction of the retainer, and the retainer mounting hole of the housing is formed. wherein by the opening and the stopper portion and the guide portion defining a guide hole is formed,
When the retainer is mounted, the guided portion elastically climbs over the stopper portion and is fitted into the guide hole, and at the temporary locking position, the guided portion fitted into the guide hole is the stopper portion. It is characterized in that the retainer is prevented from coming off by being hooked onto the retainer.

<Invention of Claim 1>
At least one of the two surfaces adjacent to the surface facing the insertion direction of the retainer in the housing is bridged between the front and back regions sandwiching the opening of the retainer mounting hole. The resin also flows in the region for forming the bridge portion, and the resin fluidity is improved. In addition, the bridge portion is formed with a guide portion in the retainer insertion direction, and the retainer is formed with a guided portion that slides into contact with the guide portion in the process of being inserted into the retainer mounting hole and guides the retainer insertion operation. Thus, the insertion posture of the retainer is corrected, and it is reliably guided to the proper mounting position. That is, since the bridge portion also serves as a guide function for the retainer, it is not necessary to provide such a guide function separately.

<Invention of Claim 2>
The retainer is held by the housing so as to be displaceable between the temporary locking position and the final locking position. At the temporary locking position, the guided portion fitted in the guide hole is hooked to the stopper portion. Since the retainer is prevented from coming off, the retainer at the temporary locking position can be prevented from falling off the housing. That is, since the bridge portion also serves as a retainer retaining function, there is no need to provide such a retaining function separately.

  An embodiment of the present invention will be described with reference to FIGS. The connector of the present embodiment includes a female connector housing (hereinafter referred to as a female housing 10) that can be fitted to a male connector housing (not shown), and a retainer 90 is attached to the female housing 10. . In the following description, the front side is the fitting surface side with the male connector housing.

  The female housing 10 is formed in a block shape having a horizontally long cross section by a synthetic resin material. Inside the female housing 10, a plurality of rows of cavities 11 are formed penetrating in the front-rear direction in two steps, upper and lower. As shown in FIG. 9, a female terminal fitting 40 is inserted into each cavity 11 from behind, and the front opening of the cavity 11 is formed by a male terminal fitting accommodated in the male connector housing. A tab (not shown) can be passed.

  The female terminal fitting 40 is configured by integrally connecting a main body portion 41 and a wire barrel 42 and an insulation barrel 43 which are arranged behind the main body portion 41 and caulk and fix the electric wires W. The main body 41 is formed in a box shape having a square cross section by bending a conductive metal plate in the width direction. A stabilizer 44 protrudes upward from one end of the main body 41. The stabilizer 44 can be slidably contacted with an escape groove (not shown) formed along one side corner portion on the upper surface of the cavity 11. When the female terminal fitting 40 is inserted in the opposite direction, the stabilizer 44 is allowed to escape. The reverse insertion of the female terminal fitting 40 is prevented by the incompatibility with the groove.

  In the main body 41, a cantilevered elastic contact piece 45 that is folded back from the front end edge thereof is disposed. The elastic contact piece 45 has a mountain shape when viewed from the side, and can be bent and deformed in the vertical direction. A contact portion 45A with the mating tab protrudes from the top of the peak of the elastic contact piece 45, and the tab is elastically sandwiched between the contact portion 45A and the receiving portion 41F facing the contact portion 45A. It has become.

  A lance 12 is integrally formed on the upper surface of the cavity 11 in the female housing 10. The lance 12 is formed to extend forward in a cantilevered manner with a portion continuous with the upper surface of the cavity 11 as a base end portion, and can be bent and deformed in the vertical direction. A locking projection 12A is formed on the free end side of the lance 12 so as to project toward the cavity 11 side. A bending space 13 is retained above the lance 12. A die-cutting hole 14 associated with the molding of the lance 12 is opened in front of the female housing 10 in front of the lance 12 including the bending space 13. It is formed in communication with the cavity 11. The lance 12 interferes with the female terminal fitting 40 in the course of insertion of the female terminal fitting 40 into the cavity 11 and is pushed up to the bending space 13 side. The female terminal fitting 40 is held in a state where it is prevented from coming off by locking the stop projection 12A in a locking hole 47 provided in the main body 41.

  Further, a lock arm 15 is formed at a substantially central portion in the width direction on the upper surface of the female housing 10. The lock arm 15 is formed to extend rearward in a cantilevered state with the base end portion supported by the front end portion of the upper surface of the female housing 10, and an operation portion 15A is provided on the free end side. A lock protrusion 15B is formed at a substantially central position in the length direction of the upper surface of the lock arm 15. The lock projection 15B is elastically locked to the mating connector housing on the mating side while the deformation of the lock arm 15 is accompanied, and holds both housings in a state in which both housings are restricted.

  A taper surface 15E whose bottom surface is chamfered is formed in the rear region from the substantially central position in the length direction of the lock arm 15. The rear region of the upper surface of the female housing 10 that faces the tapered surface 15E is one step lower than the front region, and the lock arm is located between the rear region of the lock arm 15 and the rear region of the upper surface of the female housing 10. It has a structure that can sufficiently secure 15 deflection regions. A bending space 13 of the lance 12 is formed inside the front region on the upper surface of the female housing 10, and the overall height of the female housing 10 is reduced.

  Further, as shown in FIG. 1, an inversion prevention wall 16 is provided on the upper surface of the female housing 10 so as to surround the periphery of the operation portion 15 </ b> A of the lock arm 15. The inversion prevention wall 16 is formed in a gate shape as a whole by a pair of leg portions 16A connected to both side end portions of the upper surface of the female housing 10 and a ceiling portion 16B laid between the both leg portions 16A. The portion 15A is arranged. Such a reversal prevention wall 16 can avoid a situation where the electric wire W is caught on the lock arm 15 from behind and the lock arm 15 is rolled up. As shown in FIG. 2, the ceiling portion 16B of the inversion prevention wall 16 has a notch formed with a finger passage hole 16E for allowing a finger to be pressed against the operation portion 15A.

Further, as shown in FIG. 1, a mounting frame 27 having a portal frame shape is formed on the front side of the female housing 10 by surrounding both side walls 25 and the upper wall 26. A front wall member 50 as a separate body is fitted into the mounting frame 27 from below, and can be held against the upper wall 27.
The front wall member 50 is formed in a flat plate shape with a synthetic resin material, and has a plurality of rows of tab insertion holes 51 in the width direction in two steps, upper and lower, which are the same number as each cavity 11 and can communicate with each cavity 11. . Further, the front wall member 50 has a jig insertion hole 52 that can communicate with the die-cutting hole 14 associated with the molding of the lance 12. The jig insertion holes 52 are divided into two upper and lower stages, and are in a staggered positional relationship with the tab insertion holes 51.

  As shown in FIG. 9, when the front wall member 50 reaches the mounting state, the tab insertion hole 51 communicates with the cavity 11, and the jig insertion hole 52 communicates with the mold release hole 14. Therefore, in this state, when a tab is inserted into the tab insertion hole 51 from the front, the tip of the tab enters the main body 41 of the female terminal fitting 40 inserted into the cavity 11 from the tab insertion hole 51. The elastic contact piece 45 disposed in the main body 41 is brought into contact with each other to be connected. At this time, if there is an error in alignment and the tab enters a position shifted from the normal position, the tab strikes the opening edge of the tab insertion hole 51 by being displaced from the tab insertion hole 51 of the front wall member 50. . Therefore, even if there is a situation in which the female housing 10 is formed with the die-cutting hole 14 communicating with the cavity 11, the tab is prevented from entering the die-cutting hole 14 by mistake. In addition, since the tapered surface 51A for guiding the tab is formed around the tab insertion hole 51 on the front surface of the front wall member 50, the misalignment of the tab is corrected and the tab is the main body portion of the female terminal fitting 40. 41 is reliably guided into 41.

  On the other hand, when a lance locking release jig (not shown) is inserted into the jig insertion hole 52 from the front, the tip of the jig enters the mold punching hole 14 from the jig insertion hole 52, The lance 12 can be pushed against the front surface of the locking projection 12A at the tip of the lance 12, and the lance 12 can be pushed up toward the bending space 13 in the locking release direction.

  A retainer mounting hole 17 for mounting the retainer 90 is formed on the outer surface of the female housing 10. As shown in FIGS. 3 and 5, the retainer mounting holes 17 are formed from the lower surface of the female housing 10 (corresponding to the “surface opposite to the retainer insertion direction” of the present invention) to both sides (the “retainer insertion direction of the present invention”). The retainer mounting hole 17 is configured to open in three directions. Therefore, the retainer mounting hole 17 is open in three directions. As shown in FIG. 8, the retainer mounting hole 17 is formed with a depth that communicates with each cavity 11 and divides the upper and lower cavities 11 into the front and the rear.

  At the portion of the female housing 10 that is notched by the retainer mounting hole 17, the front side is formed so that the opening edges of the cavities 11 are all vertically cut, but on the rear side, the opening edges of the cavities 11 are forward. It is formed with an inclination that becomes an upward gradient. A finger hooking projection 18 having an inclined surface continuous with the inclined surface at the hole edge on the rear side of the retainer mounting hole 17 is formed at the lower rear surface of the female housing 10. This inclined surface is formed along the insertion direction of the retainer 90 with respect to the retainer mounting hole 17, that is, the pushing direction of the retainer 90.

  Further, as shown in FIG. 5, a stepped surface 23 that is dropped by one step from the outer surface of the female housing 10 is formed in the lower region in front of the retainer mounting hole 17 on both side surfaces of the female housing 10. 23 is formed with a rib-like locking projection 24 extending in the front-rear direction. The main role of the locking projection 24 is to hold the retainer 90 at the temporary locking position and the main locking position, as will be described later. Further, as shown in FIG. 12, the lower surface of the locking projection 24 is a tapered surface 24A that rises outward, and this is a locking projection 96 (described later) of the retainer 90. It is designed to overcome elastically. Further, the upper surface of the locking projection 24 is a substantially horizontal locking surface 24B, and the locked projection 96 is locked here.

  As shown in FIG. 3, the step surface 23 is continuously formed in a region in front of the retainer mounting hole 17 on the lower surface of the female housing 10. A support plate 93 (described later) of the retainer 90 abuts on the stepped surface 23 so that the lower surface of the support plate 93 is substantially flush with the front end side of the lower surface of the female housing 10.

  In addition, as shown in FIG. 5, the bridge portions 20 are erected on the both side surfaces of the female housing 10 so as to straddle between the front and rear regions sandwiching the opening of the retainer mounting hole 17. Half of the openings of the retainer mounting holes 17 on both side surfaces of the female housing 10 are covered by the bridge portion 20. Specifically, the bridge portion 20 has a thin plate shape in the width direction, the guide portion 19 disposed obliquely along the insertion direction of the retainer 90, that is, parallel to the inclined surface of the retainer mounting hole 17, and the retainer The stopper portion 21 is arranged horizontally so as to intersect the 90 insertion direction. As will be described in detail later, the main role of the guide portion 19 is to guide the retainer 90 to the mounting position, and the main role of the stopper portion 21 is to prevent the retainer 90 from coming out. A portion to be guided of the retainer 90 is provided between the rear edge of the guide portion 19 and the rear edge of the opening of the retainer mounting hole 17 and in a portion where the retainer mounting hole 17 is partitioned by the guide portion 19 and the stopper portion 21. A guide hole 22 into which 91 (described later) is fitted is formed.

  Here, the front end of the guide portion 19 is connected to the upper front edge of the opening of the retainer mounting hole 17, and the rear end of the stopper portion 21 is connected to the lower rear edge of the retainer mounting hole 17. The rear end of 19 and the front end of the stopper portion 21 are integrally connected on the opening of the retainer mounting hole 17. The guide part 19 and the stopper part 21 are both formed with the same width over the entire region in the extending direction, and the width dimension of the guide part 19 is set smaller than the width dimension of the stopper part 21.

  In addition, the outer surface of the bridge portion 20 and the outer surface of the female housing 10 are substantially flush with each other, and a die-cut groove 28 associated with the forming of the bridge portion 20 is provided behind the rear edge of the guide portion 19. It is formed to open. Similarly, a die-cut groove 28 associated with the molding of the bridge portion 20 is formed in front of the front edge of the guide portion 19 so as to open to the front surface of the female housing 10. The groove bottom of the die-cutting groove 28 opened to the front surface of the female housing 10 is substantially flush with the step surface 23. As the die-cutting groove 28 is formed, the upper surface of the locking projection 24 is formed. Is to be molded. Note that the depth of the die-cut groove 28 corresponds to the thickness of the bridge portion 20.

  Next, the retainer 90 will be described. Similar to the female housing 10, the retainer 90 is formed of a synthetic resin material, and extends to the front in a manner of being connected to the retainer main body 92 fitted in the retainer mounting hole 17 and the lower surface of the retainer main body 92. And a support plate 93. The retainer 90 is movable between the temporary locking position and the main locking position obliquely with respect to the insertion / extraction direction of the female terminal fitting 40. Further, an operation portion 99 is formed over the entire width so as to protrude downward from the rear end of the lower surface of the retainer main body portion 92. The operation unit 99 is disposed to face the finger hooking projection 18 when the retainer 90 is in the temporary locking position.

  In the retainer main body 92, the same number of window frames 94 as the cavities 11 in each stage of the female housing 10 are formed. Each window frame 94 is formed to be able to communicate with the lower cavity 11 of the female housing 10. The opening edge on the front side of each window frame 94 is formed so as to stand substantially vertically so as to match the hole edge on the front side of the retainer mounting hole 17, and the opening edge on the rear surface side of each window frame 94 is formed on the retainer mounting hole 17. It is formed with an inclination to match the hole edge on the rear side. When the retainer 90 is in the temporary locking position, the lower half of each window frame 94 and the upper portion of the retainer main body 92 are disposed so as to be retracted downward from the cavity 11 so that the female terminal fitting 40 is inserted and removed. However, when the retainer 90 is in the final locking position, the retainer 90 enters the cavity 11 and faces the rear end jaw portion 41E of the main body portion 41 of the female terminal fitting 40 so that it can be locked. It becomes a retaining portion 98 for the female terminal fitting 40. When the retainer 90 moves from the temporary locking position to the final locking position and the female terminal metal fitting 40 does not reach the normal depth, each retaining portion 98 moves the female terminal metal fitting 40 forward from the front surface thereof. It has a function to push to the normal depth.

  Rib-shaped guided portions 91 extending obliquely along the rear edges of the window frames 94 are formed on both side surfaces of the retainer main body 92, that is, on the outer surfaces of the pair of window frames 94 disposed at both ends in the width direction. Is formed. The guided portion 91 is fitted into the guide hole 22 after the stopper portion 21 is elastically expanded, and the guided portion 91 fitted into the guide hole 22 is inserted into the stopper portion 21 as shown in FIG. The retainer 90 is prevented from coming off by being hooked.

  Further, the guided portion 91 is movable obliquely forward and upward while being in sliding contact with the guide portion 19, and its movement is restricted by abutting against the upper edge of the guide hole 22 as shown in FIG. 7. The retainer 90 is held at the temporary locking position when the guided portion 91 is positioned at the lower end of the guide hole 22 where the guided portion 91 is hooked to the stopper portion 21, while the guided portion 91 is located above the guide hole 22. When the guide hole 22 is positioned at the upper end of the hole, it is held at the final locking position. Therefore, it is possible to visually recognize whether the retainer 90 is in the temporary locking position or the main locking position by the arrangement of the guided portion 91. Further, one side of the outer surface of the guided portion 91 with respect to the center line in the length direction (side facing the rear edge of the retainer mounting hole 17) is chamfered 91A. The movement over the stopper portion 21 is performed smoothly.

  Further, as shown in FIGS. 4 and 5, the support plate 93 of the retainer 90 is formed in a horizontal plate shape that projects slightly in the width direction from both side surfaces of the retainer main body 92 and protrudes forward from the front surface of the retainer main body 92. When the retainer 90 is in the final locking position, the opening of the retainer mounting hole 17 on the lower surface of the female housing 10 is formed to have a size that can be closed.

  A pair of upright plates 95 raised substantially vertically are formed on the first half of both side edges of the support plate 93 so that the compatible plate 95 and the support plate 93 generally have a substantially U-shape. It has become. The compatibility plate 95 is arranged with an interval that can be sandwiched between both side surfaces of the female housing 10 and can be expanded and deformed inward and outward. The rear inner surface of the upright plate 95 is joined to both side surfaces of the retainer main body 92. The rear end edge of the upright plate 95 is formed obliquely at substantially the same inclination angle as the opening edge on the rear surface side of each window frame 94, and the guide portion 19 is sandwiched between the guided portion 91 in the width direction. Yes. A guide groove 97 is formed between the standing plate 95 and the guided portion 91, and the retainer 90 moves along the guide groove 97 when moving between the temporary locking position and the main locking position. Thus, the movement of the guide portion 19 is allowed.

  The upper end of the compatibility plate 95 is continuous at the same height position in front of the retainer main body 92, and a locked projection 96 is formed on the inner surface of the upper end portion so as to face each other as shown in FIG. Has been. As shown in FIG. 11, the upper surface of the locked protrusion 96 is a tapered surface 96 </ b> A having a downward slope toward the inside at substantially the same inclination angle as the lower surface of the locking protrusion 24. The lower surface of the part 96 is a substantially horizontal locked surface 96B. As shown in FIG. 1, below the locking projection 24 on the inner surface of the upright plate 95, when the retainer 90 reaches the final locking position, the constricted portion 95A into which the locking projection 24 is fitted. Is formed as a recess. The constricted portion 95 </ b> A is wound in a shape corresponding to the outer shape of the locked protrusion 96.

  When the retainer 90 is in the temporary locking position, as shown in FIG. 11, the tapered surface 96 </ b> A on the upper surface of the locked projection 96 and the tapered surface 24 </ b> A on the lower surface of the locking projection 24 meet diagonally. The movement of the retainer 90 to the main locking position is regulated loosely. On the other hand, when the retainer 90 is pushed into the main locking position, the temporarily locked state is released, and both the tapered surfaces 24A and 96A are brought into sliding contact with each other, so that the standing plate 95 is expanded and deformed. When the retainer 90 reaches the final locking position, as shown in FIG. 12, the upright plate 95 is restored to the original vertical posture, and the locked surface 96 </ b> B and the locking protrusion on the lower surface of the locked protrusion 96. The movement of the retainer 90 to the temporary locking position side is firmly restricted by the horizontal contact with the locking surface 24B on the upper surface of the portion 24. Further, when the retainer 90 reaches the final locking position, the compatibility plate 95 is fitted into the die cutting groove 28 opened on the front surface of the female housing 10, and the upper end thereof is stopped against the side edge of the die cutting groove 28, and The outer surface of the female housing 10 is substantially flush with the outer surface of the female housing 10.

  Next, the operation of this embodiment will be described. First, the front wall member 50 is mounted on the front surface of the female housing 10. Subsequently, the retainer 90 is mounted on the female housing 10 and held at the temporary locking position. In the process where the retainer 90 reaches the temporary locking position, the guided portion 91 elastically climbs over the stopper portion 21 and fits into the guide hole 22. At this time, the compatibility plate 95 of the retainer 90 is disposed across both side surfaces of the female housing 10, and the locked protrusion 96 and the locking protrusion 24 come into contact with each other. Therefore, in the temporary locking position, as shown in FIGS. 6 and 11, the retainer 90 is prevented from coming off by the contact between the guided portion 91 and the stopper portion 21, and the locked projection 96. Movement to the final locking position is loosely restricted by contact with the locking protrusion 24. Further, in the temporary locking position, as shown in FIG. 9, the retaining member 98 is in a position retracted from the cavity 11 so that the female terminal fitting 40 can be inserted.

  In this state, the female terminal fitting 40 is inserted into the cavity 11 from behind, and the female terminal fitting 40 is elastically locked to the lance 12. When the insertion work of all the female terminal fittings 40 is completed, the operation portion 99 of the retainer 90 is picked and pressed strongly to move the retainer 90 to the full locking position. At this time, the guided portion 91 and the guide portion 19 are in sliding contact with each other, so that the retainer 90 is smoothly moved to the main locking position. Further, during the movement, the locked protrusion 96 elastically climbs over the locking protrusion 24 while the vertical plate 95 is expanded and deformed.

  When the retainer 90 reaches the final locking position, as shown in FIG. 12, the locked protrusion 96 is hooked on the locking protrusion 24, and the return of the retainer 90 to the temporary locking position is restricted. Further, as shown in FIG. 7, the guided portion 91 is held against the upper edge of the guide hole 22, the upright plate 95 is held against the side edge of the die-cut groove 28, and the retainer 90 is fully locked. Movement beyond the position is restricted. Then, inside the female housing 10, as shown in FIG. 10, the retaining portions 98 of the respective window frames 94 can be locked to the main body portions 41 of the corresponding female terminal fittings 40, and the female terminal fittings 40 are attached together with the lance 12. Double-stop.

According to the present embodiment, even if there is a situation that the retainer mounting hole 17 is open over three areas of the outer surface of the female housing 10, the opening of the retainer mounting hole 17 is formed on both side surfaces of the female housing 10. Since the bridge part 20 is provided to bridge between the areas before and after sandwiching the resin, the resin flows into the area for forming the bridge part 20 at the time of molding the mold, so that the resin fluidity can be improved. .
A guide portion 19 is formed in the bridge portion 20 in the insertion direction of the retainer 90, and the retainer 90 is in sliding contact with the guide portion 19 in the process of being inserted into the retainer mounting hole 17 to guide the insertion operation of the retainer 90. Since the guided portion 91 is formed, the insertion posture of the retainer 90 is corrected, and the guided portion 91 is reliably guided to the proper mounting position. That is, since the bridge unit 20 also serves as the guide function of the retainer 90, it is not necessary to provide such a guide function separately.

  Further, since the retainer 90 is prevented from coming off by hooking the guided portion 91 on the stopper portion 21, it is possible to prevent the retainer 90 from coming off at the temporary locking position. That is, since the bridge portion 20 also serves as a retaining function for the retainer 90, it is not necessary to provide such a retaining function separately.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.
(1) In the present invention, the opening of the retainer mounting hole on both side surfaces of the female housing may be closed with a bridge portion leaving a guide hole.
(2) In the present invention, the bridge portion may be provided only on one of the side surfaces of the female housing.
(3) In the present invention, the stopper portion may not be provided.
(4) In the present invention, the front wall member may be omitted.
(5) The present invention can also be applied to a male connector having a male connector housing.

The front view which shows the state before attaching a retainer to a female housing in the connector of one Embodiment of this invention. Top view of female housing Bottom view of female housing Retainer top view Side view showing the state before the retainer is mounted on the female housing Side view showing a state in which the retainer is in the temporary locking position Side view showing a state in which the retainer is in the final locking position Side sectional view showing a state before the retainer is attached to the female housing Side sectional view showing a state where the retainer is in the temporary locking position Side sectional view showing a state in which the retainer is in the final locking position A longitudinal sectional view showing a state in which the retainer is in the temporary locking position. A longitudinal sectional view showing a state in which the retainer is in the final locking position.

Explanation of symbols

10 ... Female housing (housing)
DESCRIPTION OF SYMBOLS 15 ... Lock arm 17 ... Retainer mounting hole 19 ... Guide part 20 ... Bridge part 21 ... Stopper part 22 ... Guide hole 24 ... Locking protrusion 90 ... Retainer 91 ... Guided part 92 ... Retainer main-body part

Claims (2)

A housing in which a cavity into which a terminal fitting is inserted is formed, and a retainer that is inserted into a retainer mounting hole formed in the housing and holds the terminal fitting that is normally inserted in the cavity in a retaining state, The retainer mounting hole is opened over a three-surface region of the outer surface of the housing that faces the insertion direction of the retainer and two surfaces adjacent to the retainer, and the retainer is inserted in the insertion direction of the terminal fitting. The insertion direction is set obliquely with respect to the connector, the housing is cut out in a form in which the cavity is divided back and forth by the retainer mounting hole ,
On at least one of the two surfaces of the housing, a bridge portion is spanned between the front and rear regions sandwiching the opening of the retainer mounting hole,
The bridge portion is formed with a guide portion extending in the retainer insertion direction, and a guide hole is formed between the guide portion and a hole edge of the retainer mounting hole.
The retainer has a retainer main body portion that is fitted into the retainer mounting hole, and is formed on the outer surface of the retainer main body portion and is fitted into the guide hole from the inside. A connector characterized in that a guided portion is formed in sliding contact with the guide portion in the course of movement to a position to guide the movement of the retainer . The retainer is held in the housing so as to be displaceable between a temporary locking position that allows insertion / extraction of the terminal fitting and a final locking position that locks the terminal fitting, and the bridge portion includes is a stopper portion extending in a direction intersecting the insertion direction of the retainer connected to one end of the guide portion is formed, the by the opening of the retainer mount hole in the housing and the stopper portion and the guide portion is partitioned Guide holes are formed,
When the retainer is mounted, the guided portion elastically climbs over the stopper portion and is fitted into the guide hole, and at the temporary locking position, the guided portion fitted into the guide hole is the stopper portion. The connector according to claim 1, wherein the retainer is prevented from coming off by being hooked onto the connector.

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