JP5582349B2 - connector - Google Patents

Description

  The present invention relates to a connector provided with a retainer for securing a terminal fitting.

  2. Description of the Related Art Conventionally, there has been known a connector that prevents a terminal fitting housed in a housing from being detached by a retainer. For example, in the connector described in Patent Document 1, the housing is provided with a plurality of cavities for housing the terminal fittings, which are partitioned by a partition wall, and a retainer mounting portion for mounting the retainer opens outward. Is provided. The partition wall of the housing is formed with a notch formed by notching a portion corresponding to the retainer mounting portion in the retainer mounting direction, and the retainer has a wall constituting portion that fits into the notch and forms a part of the partition wall. Is provided.

JP 2003-7384 A

  By the way, when the connector configured as described above is used in oil such as lubricating oil, there is a possibility that foreign matters such as iron powder floating in the oil may enter the housing. May accumulate in a gap existing between the retainer and the housing. If foreign matter accumulates in the gap between the front and rear of the wall component (front and rear in the insertion direction of the terminal fitting), the foreign matter tends to adhere to the terminal fitting that should be partitioned by the partition wall, which may cause a short circuit of the terminal fitting. A countermeasure was desired.

  This invention is completed based on the above situations, Comprising: It aims at providing the connector which can prevent the short circuit between terminal metal fittings by foreign material mixing.

The connector of the present invention is a connector for retaining the terminal fitting accommodated in the housing from the rear by a retainer, and the housing is provided with a retainer mounting portion for mounting the retainer that opens outward. Further, a plurality of cavities for accommodating the terminal fittings are provided by being partitioned by a partition wall, and a portion corresponding to the retainer mounting portion of the partition wall is a notch portion that is notched in the mounting direction of the retainer, The retainer is provided with a wall constituting portion that fits into the notch and constitutes a part of the partition wall, and the wall constituting portion is press-fitted into the notch portion so that the inside of the notch portion of the partition is within the notch portion. and walls rib fill in the longitudinal direction of the gap between the partition wall and the wall forming portion in contact in a state of collapse on opposite sides in the longitudinal direction, it protrudes in That. According to such a structure, it can prevent that a foreign material adheres over a terminal metal fitting through the clearance gap before and behind the wall structure part of a retainer, and can prevent the short circuit between terminal metal fittings by foreign material mixing.

Further, the retainer has an opening fitting portion that fits into the opening of the retainer mounting portion, and the opening fitting portion is squeezed into a peripheral edge portion of the opening by being press-fitted into the opening. The opening rib which fills up the clearance gap between the said opening fitting part and the peripheral part of the said opening may be protruded and provided. According to such a structure, it can prevent that a foreign material penetrate | invades into a housing from the clearance gap before and behind between the peripheral part of opening and the opening fitting part of a retainer.

The inter-wall rib and the opening rib are both provided on the rear surface of the retainer, and the opening rib is connected to the end of the inter-wall rib on the opening fitting portion side. It is good as it is. According to such a structure, it can prevent that a foreign material accumulate | stores on the outer side of the rib for walls, and a terminal metal fitting short-circuits.

  Moreover, the uneven | corrugated fitting part which mutually fits may be provided in the surface facing the mounting direction of the said retainer among the said wall structure part and the said partition. According to such a configuration, the distance to and from the adjacent cavities is increased along the surface facing the mounting direction of the wall component and the partition retainer, so that foreign matter adheres across the terminal fitting between the surfaces. Can be suppressed.

  The retainer may have a locking portion that locks to the outer surface of the housing, and the locking portion may be hooked with a tip of an unlocking jig for releasing the locking with respect to the housing. It is good also as what is provided with the possible latch release operation part.

Moreover, the width dimension of the said rib for walls may be made smaller than the wall thickness dimension of the said wall structure part. According to such a configuration, the insertion resistance of the retainer to the retainer mounting portion can be suppressed to be smaller than when the width dimension of the inter-wall rib has, for example, a width dimension equivalent to that of the wall constituting section.

The end face of the mounting direction of the retainer out of the opening rib may be what is rib guide surface forming an inclined projecting slightly toward the other party to the rear. According to such a configuration, when the retainer is mounted on the retainer mounting portion, the opening rib is not easily caught, so that the retainer can be assembled smoothly.

  ADVANTAGE OF THE INVENTION According to this invention, the connector which can prevent the short circuit between terminal metal fittings by foreign material mixing can be provided.

Side view of connector in this embodiment Front view of connector Bottom view of connector Side view of housing Rear view of housing Bottom view of housing External perspective view of retainer Retainer front view Rear view of retainer Retainer top view FIG. 2 is a cross-sectional view of the connector in a state where the retainer is held at a temporary locking position, and is a cross-sectional view corresponding to a cross section at the position AA in FIG. FIG. 3 is a cross-sectional view of the connector in a state where the retainer is held at a temporary locking position, and is a cross-sectional view corresponding to a cross section at the BB position in FIG. 2. FIG. 3 is a cross-sectional view of the connector in a state where the retainer is held at a temporary locking position, and is a cross-sectional view corresponding to the cross-section at the CC position in FIG. 2. FIG. 2 is a cross-sectional view of the connector in a state where the retainer is held at the final locking position, and is a cross-sectional view corresponding to the cross-section at the position AA in FIG. FIG. 3 is a cross-sectional view of the connector in a state where the retainer is held at the final locking position, and is a cross-sectional view corresponding to the cross section at the BB position in FIG. 2. FIG. 3 is a cross-sectional view of the connector in a state where the retainer is held in the final locking position, and a cross-sectional view corresponding to the cross-section at the CC position in FIG.

<Embodiment>
Hereinafter, an embodiment embodying the present invention will be described in detail with reference to FIGS.
The connector C in this embodiment includes a housing 10 that can accommodate a terminal fitting (not shown), and a retainer 20 that is assembled to the housing 10 and prevents the terminal fitting from being removed. In the following, each component will be described with the left side of FIG. 1 as the front, the right side as the rear, the upper side as the upper side, and the lower side as the lower side.

  The housing 10 is made of a synthetic resin material, and a plurality of (six chambers in this embodiment) cavities 11 into which terminal fittings can be inserted and removed from the rear are partitioned by partition walls 12 and arranged in a horizontal row. . In each cavity 11, a lance 13 is formed for primarily locking a terminal fitting inserted in a normal position.

  The housing 10 is provided with a retainer mounting portion 14 for mounting the retainer 20. The retainer mounting portion 14 is formed through the cavity 11 from the lower surface of the housing 10 so that the retainer 20 can be inserted and removed from below. The retainer mounting portion 14 is provided on the rear side of the lance 13 and communicates with all the cavities 11. The retainer mounting portion 14 is opened below and on both sides (outside in the width direction) of the housing 10 (see FIG. 4). The opening of the retainer mounting portion 14 formed on the lower surface of the housing 10 has a substantially rectangular shape elongated in the width direction of the housing 10 (see FIG. 6). The peripheral edge portion 15 of the opening has a front end face 15A extending to the front side of the opening and a rear end face 15B extending to the rear side. The front end surface 15A is a surface that is flat in the vertical direction (a surface perpendicular to the lower surface of the housing 10), and the rear end surface 15B includes a surface that is perpendicular to the lower surface of the housing 10 and an inclined surface. Specifically, the upper portion of the rear end face 15B is a vertical surface, and the lower portion is an inclined surface, and this inclined surface is a surface inclined so as to widen the opening downward.

  A portion corresponding to the retainer mounting portion 14 of the partition wall 12 partitioning the cavity 11 is a notched portion 16 that is notched in the mounting direction of the retainer 20 (from the bottom to the top) (see FIG. 12). Hereinafter, the front side partition 12A of the partition wall 12 is referred to as a front partition wall 12A, the rear side part is referred to as a rear partition wall 12B, and the upper part is referred to as an upper partition wall 12C. The rear surface of the front partition 12 </ b> A and the front surface of the rear partition 12 </ b> B (the surface facing the notch 16) are flat surfaces facing each other substantially in parallel and perpendicular to the lower surface of the housing 10. The wall thickness dimensions of the front partition 12A, the rear partition 12B, and the upper partition 12C are equal.

  On both outer side surfaces of the housing 10 (both end surfaces in the width direction of the housing 10), there are provided locking fitting portions 17 into which locking portions 22 of a retainer 20 described later are fitted. The locking fitting portion 17 is a portion formed by denting a part of the outer surface of the housing 10 and is continuous with both ends of the retainer mounting portion 14 (see FIG. 6). The locking fitting portion 17 has a width dimension that projects to the front side and the rear side relative to the retainer mounting portion 14, and the portion that projects to the front side is made larger than the rear side. The front end surface and the rear end surface of the locking fitting portion 17 are a first front oblique end surface 17A and a first rear oblique end surface 17B that are inclined with respect to the outer surface of the housing 10. The first front oblique end surface 17A and the first rear oblique end surface 17B are inclined forward and backward from the outside to the inside, respectively.

  A temporary locking projection 18 and a final locking projection 19 are projected from the locking fitting portion 17 (see FIG. 4). The temporary locking protrusion 18 and the main locking protrusion 19 are provided in a portion of the locking fitting portion 17 in front of the retainer mounting portion 14, and the main locking protrusion 19 is provided above the temporary locking protrusion 18. ing. The temporary locking protrusions 18 and the main locking protrusions 19 have the same width dimension (the dimension in the front-rear direction), and are disposed at positions that overlap vertically. The projecting dimensions of the temporary latching protrusion 18 and the main latching protrusion 19 are both about half of the recess dimension of the latching fitting portion 17, and the projecting dimension of the temporary latching protrusion 18 is the projecting dimension of the main latching protrusion 19. It is made slightly larger (see FIG. 5).

The retainer 20 is inserted in an upward direction (perpendicular to the lower surface) from the opening of the retainer mounting portion 14, and is engaged in a temporary locking position (see FIG. 13) that allows insertion and removal of the terminal fitting, and a state in which the terminal fitting is prevented from being detached. It is possible to move between the main locking positions to be stopped (see FIG. 16).
The retainer 20 is formed of a synthetic resin material, and has a main body portion (opening fitting portion) 21 that fits into the opening of the retainer mounting portion 14 and a locking portion 22 that locks to the outer surface of the housing 10. (See FIG. 7).

  The main body 21 has a substantially rectangular plate shape elongated in the lateral direction along the shape of the opening of the retainer mounting portion 14. When the retainer 20 is held in the final locking position, the main body 21 is fitted into the opening of the retainer mounting portion 14 to close the opening, and the lower surface thereof is flush with the lower surface of the housing 10.

  On the upper surface of the main body portion 21, a wall constituting portion 23 that is fitted into the notch portion 16 of the partition wall 12 and constitutes a part of the partition wall 12 is provided. A plurality of wall constituting portions 23 are provided at the same pitch as the partition walls 12 and are formed at positions corresponding to the respective partition walls 12. The wall constituting part 23 is provided from the front end to the rear end of the main body part 21, and the dimension in the front-rear direction is equal to or slightly smaller than the dimension in the front-rear direction of the notch part 16. The width dimension of the wall constituting portion 23 becomes smaller toward the end surface at the front end portion and the rear end portion, and is constant and equal to the width dimension of the partition wall 12 at the other portions. Moreover, the height dimension of the wall structure part 23 is made constant throughout. Note that an outer wall constituting portion 24 constituting a part of the outer wall of the housing 10 is provided at both ends of the main body portion 21 (see FIG. 14). The outer wall constituting portion 24 divides the wall constituting portion 23 into two in the width direction. (See FIG. 10).

  A portion between the adjacent wall constituent portions 23 in the main body portion 21 serves as a retaining portion 25 that is locked to each terminal metal fitting to prevent the retaining member 25 from coming off. Each retaining portion 25 is retracted from each cavity 11 when the retainer 20 is in the temporary locking position, and enters each cavity 11 when the retainer 20 is in the final locking position. Note that an inclined surface 25 </ b> A is formed at the rear end edge of the retaining portion 25 so as to descend rearward.

  As shown in FIG. 8, the front side surface of the main body portion 21 is a flat surface as a whole, that is, the front side surface of the wall constituting portion 23, the front side surface of the main body portion 21, and the front end surface of the convex fitting portion 33A described later. However, it forms a flat surface without a step at the boundary. The front side surface of the wall constituting portion 23 and the front end surface of the convex fitting portion 33A come into contact with the rear surface of the front partition 12A, and the front side surface of the main body portion 21 comes into contact with the front end surface 15A of the opening.

  The latching | locking part 22 is provided in the both ends in the width direction of the main-body part 21 (refer FIG. 7). The locking portion 22 has a plate shape that rises upward from the main body 21 and protrudes forward and backward from the main body 21. The thickness dimension of the locking portion 22 is equivalent to the recess size of the locking fitting portion 17, and in a state where the locking portion 22 is fitted to the locking fitting portion 17, the outer surface ( The plate surface opposite to the main body 21 is located on the same surface as the outer surface of the housing 10 (see FIG. 3). Further, when the retainer 20 is held at the final locking position, the uppermost end edge of the locking portion 22 is arranged close to the upper end edge of the locking fitting portion 17 (see FIG. 1).

  A locking recess 26 that can be locked to the temporary locking protrusion 18 or the main locking protrusion 19 is formed on the inner side surface of the locking portion 22 (the plate surface on the main body portion 21 side). The locking recess 26 is formed in a portion on the front side of the main body 21 with a certain recess size. The locking recess 26 has a rectangular shape that is long in the vertical direction when viewed from the inside, and the lower end thereof coincides with the lower end of the locking portion 22 and is opened below the locking portion 22. The width dimension (the dimension in the front-rear direction) of the locking recess 26 is equivalent to the dimension in the front-rear direction of the temporary locking protrusion 18 and the main locking protrusion 19. When the retainer 20 reaches the temporary locking position, the upper surface 26A of the locking recess 26 is locked to the temporary locking protrusion 18, and when the retainer 20 reaches the final locking position, the upper surface 26A of the locking recess 26 is The main locking projection 19 is locked. The locking portion 22 is continuous with the outer wall constituting portion 24.

At a position near the upper end of the locking portion 22, there is provided a locking guide surface 27 that is inclined along the lower surface of the locking protrusion 19 when the retainer 20 is held at the temporary locking position ( FIG. 11).
The front end surface and the rear end surface of the locking portion 22 are a second front oblique end surface 22A and a second rear oblique end surface 22B that are inclined with respect to the plate surface of the locking portion 22 (see FIG. 10). The second front oblique end face 22A and the second rear oblique end face 22B are inclined forward and backward from the outside to the inside, respectively, and the gradient thereof is the gradient of the first front oblique end face 17A and the first rear oblique end face 17B. (See FIG. 3).

  The locking portion 22 is provided with a locking release operation portion 28 that can hook the tip of a locking releasing jig (not shown) for releasing the locking with respect to the housing 10. The unlocking operation part 28 is composed of an end face provided by forming a rectangular notch at the corner of the engaging part 22, and includes an end face extending in the vertical direction (referred to as a vertical end face 28A) and a front-rear direction. An extending end surface (referred to as a lateral end surface 28B) intersects perpendicularly (see FIG. 1). The unlocking operation part 28 is formed in the rear part (upper part of the main body part 21) of the upper end part of the locking part 22, and the lateral end face 28B is located below the locking guide surface 27 and is locked. It is aligned with the upper surface 26A of the recess 26 in a substantially horizontal position. The vertical end surface 28 </ b> A and the horizontal end surface 28 </ b> B are perpendicular to the outer surface of the housing 10. In the state where the retainer 20 is held at the main locking position, as shown in FIG. 1, a portion of the locking fitting portion 17 of the housing 10 surrounded by the locking release operation portion 28 is exposed, and the locking is released. A sufficient space is secured between the operation portion 28 and the upper edge of the locking fitting portion 17 to insert the tip of the locking releasing jig.

  The wall constituting portion 23 of the retainer 20 is provided with protruding ribs 30 between the walls that contact the rear partition wall 12B and fill the gap in the front-rear direction between the wall constituting portion 23 and the partition wall 12. The inter-wall ribs 30 are provided so as to protrude from the rear surfaces of the wall constituent portions 23 (one of the surfaces of the wall constituent portions 23 and the partition walls 12 facing in the front-rear direction), and the protruding dimensions thereof are constant. The projecting dimension of the inter-wall rib 30 is a dimension that can fill the gap between the front and rear walls 23, that is, the gap between the wall 23 and the front partition 12A and between the wall 23 and the rear partition 12B. It is said that. Further, the protruding end surface (rear surface) of the inter-wall rib 30 is formed in a round shape. The width dimension of the inter-wall rib 30 is smaller than the wall thickness dimension of the wall constituting portion 23. The inter-wall rib 30 extends linearly in the vertical direction at the center position in the width direction of the wall constituting portion 23 (see FIG. 9). The upper end of the inter-wall rib 30 extends upward from the upper surface of the wall constituting portion 23 and continues to the rear end of a convex fitting portion 33A described later. Further, the lower end of the inter-wall rib 30 reaches a position near the lower surface of the main body portion 21 (a central position in the vertical direction of the main body portion 21).

  The main body 21 of the retainer 20 is provided with an opening rib 31 that protrudes from the peripheral edge 15 of the opening and fills the gap between the main body 21 and the peripheral edge 15 of the opening. The opening rib 31 is provided so as to extend across the entire width of the rear surface of the main body 21 (one of the main body 21 and the peripheral edge 15 of the opening that faces in the front-rear direction). It is lined up. The opening rib 31 has the same cross-sectional shape over its entire length, and the cross-sectional shape thereof is trapezoidal (see FIG. 13). The opening rib 31 is provided in a range from the intermediate position in the vertical direction of the main body 21 to the lower surface. The upper surface of the opening rib 31 (the front end surface in the mounting direction of the retainer 20) is a rib guide surface 32 that is inclined gradually from the upper side to the lower side, and the lower end of the inter-wall rib 30 (the main body 21 side). (See FIG. 7). The protruding end surface (rear surface) of the opening rib 31 is perpendicular to the lower surface of the main body portion 21, and the lower surface of the opening rib 31 is flush with the lower surface of the main body portion 21. The projecting dimensions of the opening rib 31 and the inter-wall rib 30 are the same.

  The wall constituting portion 23 of the retainer 20 and the partition wall 12 of the housing 10 are provided with an uneven fitting portion 33 that fits each other. The concave / convex fitting portion 33 includes a convex fitting portion 33A provided on the upper surface of the wall constituting portion 23 and a concave fitting portion 33B provided on the lower surface of the upper partition 12C (see FIG. 14).

  33 A of convex fitting parts are extended and provided in the front-back direction at linear form, and have the length dimension from the front end of the wall structure part 23 to a rear end (refer FIG. 10). The convex fitting portion 33A is located at the center in the width direction of the wall constituting portion 23, and its width dimension is set to about one third of the width dimension of the wall constituting portion 23 or slightly smaller than that, and the rib for the wall It is equivalent to 30 width dimensions. The projecting dimension of the convex fitting portion 33A is constant over the entire length, and the projecting end surface (upper surface) is rounded.

  The concave fitting portion 33B is formed to be recessed upward along the outer shape of the convex fitting portion 33A. The concave fitting portion 33B is provided to extend linearly in the front-rear direction, and has a length dimension from the front end to the rear end of the upper partition 12C (see FIG. 6). The recessed fitting portion 33B is formed at the center in the width direction of the upper partition 12C, and the recessed surface is formed in a round shape.

Next, attachment and removal work of the retainer 20 will be described.
First, the retainer 20 is held at the temporary locking position. When the retainer 20 is inserted into the opening of the retainer mounting portion 14, as shown in FIG. 12, the inter-wall rib 30 comes into contact with the front surface of the rear partition wall 12B, and the retainer 20 is pushed forward by this, so that the wall constituting portion The front surface of 23 contacts the rear surface of the front partition 12A. At this time, the inter-wall ribs 30 are slightly crushed. And the latching | locking part 22 of the retainer 20 will be in the state latched by the temporary latching protrusion 18, and the retainer 20 is hold | maintained in a temporary latching position.

  Thereafter, terminal fittings are inserted into the respective cavities 11, and when all the terminal fittings have been inserted, the retainer 20 is pushed further upward. Then, the locking guide surface 27 of the locking portion 22 contacts the lower surface of the main locking projection 19, and the locking portion 22 is guided by the inclination of the locking guide surface 27 and smoothly rides on the main locking projection 19. Go. Further, the rib guide surface 32 of the opening rib 31 contacts the rear end surface 15B of the opening, and the main body 21 is pushed forward little by little by the inclination of the rib guide surface 32. Then, the gap on the front side of the main body portion 21 is gradually filled, the front surface of the main body portion 21 hits the front end surface 15A of the opening, and the protruding end surface of the opening rib 31 comes into contact with the rear end surface 15B of the opening. . At this time, the opening rib 31 is slightly crushed. Further, the upper partition 12C and the wall constituting portion 23 approach each other, and the uneven fitting portion 33 starts to be fitted. When the retainer 20 reaches the final locking position, the upper end of the locking portion 22 gets over the main locking projection 19, and the upper surface 26 </ b> A of the locking recess 26 is locked to the main locking projection 19. The fitting portion 33 is in a completely fitted state (a state where substantially the entire convex fitting portion 33A is fitted in the concave fitting portion 33B).

  In order to remove the retainer 20 held at the main locking position, the front end of the locking release jig is abutted against the corner where the vertical end surface 28A and the horizontal end surface 28B intersect. Then, the upper end portion of the locking portion 22 floats outside the housing 10, and the locking between the upper surface 26 </ b> A of the locking recess 26 and the main locking projection 19 is released. This release operation is performed for each locking portion 22 to remove the retainer 20 from the housing 10.

According to the embodiment configured as described above, the following effects can be obtained.
The connector C according to the present embodiment is a connector C that retains the terminal fitting accommodated in the housing 10 from the rear by the retainer 20, and the housing 10 has a retainer mounting portion 14 for mounting the retainer 20 outward. A plurality of cavities 11 that are provided open to the terminal and that receive terminal fittings are partitioned by a partition wall 12, and a portion corresponding to the retainer mounting portion 14 of the partition wall 12 is notched in the mounting direction of the retainer 20. The retainer 20 is provided with a wall constituting portion 23 that fits into the notched portion 16 and constitutes a part of the partition wall 12, and the rear surface of the wall constituting portion 23 is in contact with the rear partition wall 12B. And the rib 30 for walls which fills the clearance gap of the front-back direction between the wall structure part 23 and the partition 12 is provided protrudingly. Thereby, it can prevent that a foreign material adheres over a terminal metal fitting through the clearance gap before and behind the wall structure part 23 of the retainer 20, and can prevent the short circuit between terminal metal fittings by foreign material mixing.

  The retainer 20 has a main body portion 21 that fits into the opening of the retainer mounting portion 14, and the rear surface of the main body portion 21 contacts the rear end surface 15B of the opening to contact the main body portion 21 and the peripheral edge portion 15 of the opening. An opening rib 31 is provided so as to project the gap between the two. Thereby, foreign matter can be prevented from entering the housing 10 from the front and rear gaps between the peripheral edge portion 15 of the opening and the main body portion 21 of the retainer 20.

  Further, since the opening rib 31 is connected to the lower end of the inter-wall rib 30, foreign matter accumulates outside the inter-wall rib 30 and straddles between adjacent cavities 11, It is possible to prevent the metal fitting from being short-circuited.

  Further, an uneven fitting portion 33 that fits each other is provided on the upper surface of the wall constituting portion 23 and the lower surface of the upper partition 12C. Thereby, since the distance which goes back and forth between the adjacent cavities 11 along the upper surface of the wall structure part 23 and the lower surface of the upper partition 12C is increased, it is possible to prevent foreign matter from adhering over the terminal fitting between the surfaces. be able to.

  In addition, the retainer 20 has a locking portion 22 that locks to the outer surface of the housing 10, and the locking portion 22 is hooked with a tip of an unlocking jig for unlocking the housing 10. An unlocking operation unit 28 is provided. Here, for example, when the unlocking operation part is formed by providing an opening in the main body part of the retainer, this opening is likely to be an entrance for foreign matter, particularly when the opening communicates with the cavity. , Foreign matter easily enters the cavity. However, in the present embodiment, the locking release operation portion 28 is formed in the locking portion 22 that locks to the outer surface of the housing 10, that is, provided at a position that does not communicate with the cavity 11. Intrusion of foreign matter can be prevented.

  The inter-wall ribs 30 are provided on the retainer 20, and the width dimension of the inter-wall ribs 30 is smaller than the wall thickness dimension of the wall constituting portion 23. Thereby, for example, the insertion resistance of the retainer 20 to the retainer mounting portion 14 can be suppressed to be small compared with the case where the width dimension of the rib for the wall has the same width dimension as that of the wall constituent portion, and the retainer 20 can be smoothly smoothed. Can be attached.

  The retainer 20 has a main body portion 21 that fits into the opening of the retainer mounting portion 14. The main body portion 21 is in contact with the peripheral edge portion 15 of the opening and between the main body portion 21 and the peripheral edge portion 15 of the opening. An opening rib 31 that fills the gap is provided so as to protrude, and an upper surface of the opening rib 31 (a front end surface in the mounting direction of the retainer 20) is inclined with a rib guide surface 32 that protrudes little by little from the front toward the rear. Has been. Thereby, when attaching the retainer 20 to the retainer attaching part 14, since the rib 31 for opening is hard to be caught, the retainer 20 can be assembled | attached smoothly.

<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.

(2) In the above embodiment, the housing 10 is formed with only one cavity 11, but the present invention can also be applied to a connector in which a plurality of cavities are provided in the housing.

(3) In the above-described embodiment, the inter-wall rib 30 and the opening rib 31 are provided on the rear side surface of the retainer 20, but the present invention is not limited to this, and the inter-wall rib and the opening rib are connected to the front side surface of the retainer. May be provided.
(4) In the above-described embodiment, the opening rib 31 is provided to be connected to the lower end of the inter-wall rib 30. However, the present invention is not limited to this. You may provide in the position spaced apart below, and you may provide intermittently in the position between ribs for walls.

(5) In the above embodiment, the concave / convex fitting portion 33 is configured by the convex fitting portion 33A provided on the upper surface of the wall constituting portion 23 and the concave fitting portion 33B provided on the lower surface of the upper partition wall 12C. However, conversely, a concave fitting portion may be provided on the upper surface of the wall constituting portion, and a convex fitting portion may be provided on the lower surface of the upper partition wall.
(6) In the above-described embodiment, the locking release operation unit 28 is provided by forming a rectangular cutout at the corner of the locking unit 22. You may provide by forming an opening in a part of.

C ... Connector 10 ... Housing 11 ... Cavity 12 ... Bulkhead 14 ... Retainer mounting part 15 ... Opening peripheral part 16 ... Notch part 20 ... Retainer 21 ... Main part (opening fitting part)
DESCRIPTION OF SYMBOLS 22 ... Locking part 23 ... Wall structure part 28 ... Unlocking operation part 30 ... Rib for walls 31 ... Rib for opening 32 ... Rib guide surface 33 ... Concavity and convexity fitting part

Claims (7)

A connector for retaining the terminal fitting housed in the housing from behind by a retainer,
In the housing, a retainer mounting portion for mounting the retainer is provided so as to open outward, and a plurality of cavities for housing the terminal fittings are provided by being partitioned by a partition wall,
A portion corresponding to the retainer mounting portion of the partition wall is a cutout portion cut out in the mounting direction of the retainer,
The retainer is provided with a wall constituting part that fits into the notch and constitutes a part of the partition,
The wall constituent part is pressed into the notch part so that the wall part is crushed by a surface facing the front-rear direction in the notch part, and the front and rear parts between the wall constituent part and the partition part are in contact with each other. A connector in which ribs for walls that fill gaps in the direction are provided protruding. The retainer has an opening fitting portion that fits into an opening of the retainer mounting portion,
The opening fitting portion is pressed into the opening so as to contact the peripheral edge portion of the opening in a crushed state and fill the gap between the opening fitting portion and the peripheral edge portion of the opening. The connector according to claim 1, wherein the rib is provided so as to protrude. The inter-wall rib and the opening rib are both provided on the rear surface of the retainer,
The connector according to claim 2, wherein the opening rib is provided so as to be connected to an end portion of the inter-wall rib on the opening fitting portion side.   The uneven | corrugated fitting part which mutually fits is provided in the surface facing the mounting direction of the said retainer among the said wall structure part and the said partition, The Claim 1 thru | or 3 characterized by the above-mentioned. connector. The retainer has a locking portion that locks to the outer surface of the housing,
The locking portion is provided with an unlocking operation portion capable of hooking a tip of an unlocking jig for releasing the locking with respect to the housing. A connector according to claim 1. 6. The connector according to claim 1, wherein a width dimension of the inter-wall rib is made smaller than a wall thickness dimension of the wall constituent portion. The distal end surface of the mounting direction of the retainer out of the opening rib is claimed in any one of claims 2 to 6 are the rib guide surface forming an inclined protruding from other party gradually toward the rear Connector.

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