JP5800242B2 - connector - Google Patents

Description

  The present invention relates to a connector.

  The connector described in Patent Document 1 includes an outer housing, an inner housing accommodated in a housing chamber of the outer housing, a seal member that abuts the inner housing from the rear, and a seal member that abuts the seal member from the rear to prevent the seal member from coming off. And a holder. The inner housing has a plurality of cavities into which terminal fittings connected to the end portions of the electric wires are inserted. The seal member has a plurality of seal holes into which the electric wires are inserted in a liquid-tight manner at positions communicating with the respective cavities.

  On the rear surface of the housing, a coupling pin that penetrates the seal member and the holder coaxially and is ultrasonically welded to the holder is formed to protrude. In addition, the holder is formed with a locking frame that is elastically fitted into a protrusion formed on the outer housing.

Japanese Patent No. 3266115

  In the above case, since the holder is fixed to the outer housing when the protrusion is fitted to the locking frame, the movement of the holder in the outer housing is restricted. As a result, variation in the pressing position of the seal member by the holder is suppressed, and the seal member can exhibit a predetermined sealing property. However, since the holder and the seal member are ultrasonically welded via the coupling pin, there is a situation that the welding work is troublesome and an expensive ultrasonic welder is required.

  The present invention has been completed based on the above circumstances, and an object thereof is to maintain a predetermined sealing property without performing ultrasonic welding.

The connector of the present invention has a plurality of cavities into which terminal fittings can be inserted, an inner housing having a holder inner lock portion, a housing chamber capable of accommodating the inner housing, and a holder outer lock portion. An outer housing and a plurality of seal holes which are arranged so as to be capable of coming into contact with the inner housing from the rear and into which the electric wires connected to the terminal fittings can be liquid-tightly inserted at positions communicating with the plurality of cavities. A seal member that is disposed behind the seal member to prevent the seal member from being detached, and has an inner holder lock portion and an outer holder lock portion, and the inner holder lock portion is the holder. And is fixed to the inner housing by being elastically locked to the inner lock portion. And a holder secured to the outer housing by which the holder locking portion for the outer are elastically locked to the outer locking portion for the holder, the outer holder locking portion, deflection at the outer peripheral edge of the holder It is a possible doubly-supported beam shape, and is characterized in that a hollow portion that allows a bending operation of the outer holder lock portion is formed inside the holder .

  Since the holder is fixed to the inner housing via the inner holder lock portion and is also fixed to the outer housing via the outer holder lock portion, the movement of the holder in the outer housing is restricted, and the seal member by the holder The variation of the holding position can be suppressed. As a result, the sealing performance of the sealing member is exhibited well.

Further, when the holder is fixed to the inner housing, the inner holder lock portion is elastically locked to the inner lock portion for the holder, so that it is not necessary to perform ultrasonic welding and workability is improved. Further, in addition to avoiding an increase in size of the holder, smoothness of the bending operation of the outer holder lock portion is ensured.

It is a front view of the connector which concerns on Example 1 of this invention. It is AA sectional drawing of FIG. It is sectional drawing showing the state which the rib of the other party housing approached in the rib receiving hole. It is a side view of a connector. It is BB sectional drawing of FIG. It is a front view of an outer housing. It is a top view of the outer housing with which the lever was mounted | worn. It is a side view of an outer housing. It is a front view of the outer housing with which the inner housing was mounted | worn. It is CC sectional drawing of FIG. It is DD sectional drawing of FIG. It is a front view of a holder. It is a top view of a holder. It is a side view of a holder. It is a top view of an inner housing. It is a front view of an inner housing. It is a side view of an inner housing. It is a top view of the inner housing with which the sealing member and the holder were mounted | worn. It is EE sectional drawing of FIG. It is a front view of a sealing member. It is a side view of a sealing member. It is a front view of a retainer. It is a side view of a retainer. It is a front view of an electric wire cover. It is a side view of an electric wire cover. It is a rear view of the connector by which the electric wire cover was kept in the initial position. It is a rear view of the connector by which the electric wire cover was kept in the attachment position. It is sectional drawing of the connector before an electric wire cover is assembled | attached. It is sectional drawing of the connector by which the electric wire cover was kept in the initial position. It is sectional drawing of the connector by which the electric wire cover was kept in the attachment position. It is an expanded side view of the part of the connection wall of an outer housing.

Preferred embodiments of the present invention are shown below.
The inner housing has an inner inner lock portion, the outer housing has an inner outer lock portion, and the outer inner lock portion is elastically locked to the inner outer lock portion. The inner housing is fixed to the outer housing. Since both the inner housing and the holder are fixed to the outer housing, both the front and rear sides of the seal member are positioned, and the sealing performance of the seal member is exhibited better.

The holder has a plurality of through-holes into which the electric wire is inserted at a position communicating with the seal hole, and the holder has a region opposite to a region where the plurality of through-holes are formed. The inner holder lock portion and the outer holder lock portion are arranged in a biased manner. As a result, the region in which each through hole is formed and the region in which the inner holder lock portion and the outer holder lock portion are arranged are distinguished, so that the space efficiency is improved, and the holder is connected to the inner housing and A situation in which the outer housing is mounted so as to be reversed in the direction in which both regions are arranged is avoided.
The inner lock portion for the holder and the holder lock portion for the inner are arranged at positions where they cannot be locked with each other when the inner housing and the holder have an incorrect assembly posture. This ensures that the holder is assembled to the inner housing in a normal posture.

  The holder outer lock portion and the both outer holder lock portions are arranged at positions where they cannot be locked with each other when the outer housing and the holder are in an improper assembly posture. This ensures that the holder is assembled to the outer housing in a normal posture.

<Example 1>
A first embodiment of the present invention will be described with reference to FIGS. The connector of the present embodiment includes an inner housing 10, an outer housing 30, a retainer 70, a lever 90, a seal member 100, a seal ring 120, a holder 130, an electric wire cover 150, and a terminal fitting 200.

  The inner housing 10 is made of a synthetic resin and has a flat rectangular block shape along the width direction as shown in FIGS. As shown in FIGS. 2 and 16, the inner housing 10 is formed with a plurality of cavities 11 penetrating in the front-rear direction. Each cavity 11 is arranged in a plurality of rows in the upper and lower stages and in the width direction. Further, on the inner upper surface of each upper cavity 11 and the inner lower surface of each lower cavity 11, lances 12 that can be bent are formed to protrude forward. The terminal fittings 200 are inserted into the cavities 11 from the rear, and the normally inserted terminal fittings 200 are elastically retained and locked by the lances 12. As shown in FIG. 15, die holes 13 are formed on the upper and lower outer surfaces of the inner housing 10 for each cavity 11 when a mold (not shown) passes during molding of each lance 12.

  Further, as shown in FIGS. 15 and 17, a pair of mounting grooves 14 are formed in the rear of the die-cutting holes 13 on the upper and lower outer surfaces of the inner housing 10. Both mounting grooves 14 are configured to open from the upper and lower outer surfaces of the inner housing 10 to both side surfaces and to communicate with the respective cavities 11, and the retainer 70 can be slid and mounted from one side. In both mounting grooves 14, the base end portions 15 of the respective lances 12 are disposed so as to protrude. Further, as shown in FIG. 17, a step 16 is formed on the upper and lower outer surfaces of the inner housing 10 along the rear end opening edges of both mounting grooves 14.

As shown in FIGS. 15 and 17, a pair of outer inner lock portions 18 having a claw shape projectingly formed immediately after both mounting grooves 14 on both side surfaces of the inner housing 10.
In addition, a pair of inner lock portions 19 for holders are formed on the rear surface of the inner housing 10 so as to protrude on one side of both sides in the height direction across the rear end opening of each cavity 11. The inner lock portions 19 for both holders have a rectangular plate shape and are spaced apart from each other in the width direction. As shown in FIG. 15, a holder inner lock recess 21 is formed in a substantially rectangular shape on the outer surface of the rear end portion of both holder inner lock portions 19. Further, a flange portion 20 is formed to protrude in the circumferential direction at the rear end portion of the inner housing 10.

  On the rear surface of the inner housing 10, a large number of pin-shaped inner side positioning projections 22 are formed side by side in the width direction on both sides in the height direction across the rear end openings of the cavities 11. Among the inner side positioning projections 22, the one arranged on one side in the height direction is located at substantially the same height as the inner lock portions 19 for both holders, as shown in FIG. 17.

  The terminal fitting 200 is made of a conductive metal, and has a cylindrical terminal connection portion 201 and an open barrel-shaped barrel portion 202 located behind the terminal connection portion 201 as shown in FIG. When the inner housing 10 is fitted into the mating housing 600, the male tab 610 of the mating terminal fitting attached to the mating housing 600 is inserted into and connected to the terminal connecting portion 201. Moreover, the barrel part 202 is connected to the terminal part of the electric wire 800 by crimping.

  A locking projection 203 that can be locked to the lance 12 protrudes from the peripheral wall of the terminal connecting portion 201. Further, a retainer receiving portion 204 that can be retained by a retainer portion 75 of the retainer 70 described later is formed substantially along the height direction at the rear end edge of the terminal connecting portion 201.

  The seal member 100 is made of rubber such as silicon rubber, and has a substantially rectangular mat shape that is long in the width direction, as shown in FIGS. The seal member 100 is disposed in contact with the rear surface of the inner housing 10 so as to cover the entire rear surface of the inner housing 10. As shown in FIG. 2, a plurality of seal holes 101 are formed through the seal member 100 at positions that are coaxially connected to the cavities 11. A plurality of inner peripheral lips 102 are formed around the inner peripheral surface of each seal hole 101 in the front-rear direction. After passing through the terminal fitting 200, the electric wire 800 is inserted into each seal hole 101, and each inner peripheral lip 102 is elastically adhered to the outer peripheral surface of the electric wire 800.

  As shown in FIG. 21, a plurality of outer peripheral lips 103 are formed around the outer peripheral surface of the seal member 100 in the front-rear direction. As shown in FIG. 2, when the inner housing 10 is accommodated in a storage chamber 33 (described later) of the outer housing 30, each outer peripheral lip 103 is elastically adhered to the inner peripheral surface of the storage chamber 33. .

  In addition, as shown in FIG. 20, a pair of lock receiving holes 104 having a horizontally long slit shape penetrate through the seal member 100 on one side in the height direction between both sides of the seal hole 101. Is formed. The lock receiving holes 104 are spaced apart from each other in the width direction, and a plurality of lock-side inner lips 105 are formed around the inner circumferential surface of the lock receiving holes 104 in the front-rear direction as shown in FIG. .

  As shown in FIG. 20, a large number of inner positioning recesses 106 are formed on the front surface of the seal member 100 along the width direction on both sides in the height direction across the seal holes 101. Of the inner positioning recesses 106, the one arranged on one side in the height direction is positioned at substantially the same height as the two lock receiving holes 104.

  As shown in FIG. 19, when the seal member 100 is assembled to the inner housing 10, the base end portion of the holder inner lock portion 19 is inserted into the lock receiving hole 104, and each lock side inner peripheral lip 105 is inserted into the holder inner lock. The outer surface of the part 19 is elastically adhered. Further, when the seal member 100 is assembled to the inner housing 10, each inner-side positioning projection 22 is fitted in each inner positioning recess 106 in a positioned state. Further, as shown in FIG. 19, a large number of holder positioning recesses 107 are formed on the rear surface of the seal member 100 side by side in the width direction at the back-to-back positions opposite to the inner positioning recesses 106. Yes.

  The holder 130 is made of a synthetic resin, and has a rectangular plate shape that is long in the width direction, as shown in FIGS. As shown in FIGS. 18 and 19, the holder 130 is disposed in contact with the rear surface of the seal member 100 so as to cover the entire rear surface of the seal member 100. As shown in FIG. 2, the holder 130 is formed with a plurality of through-holes 131 having a substantially rectangular shape penetrating through the holder 130 at positions coaxially communicating with the seal holes 101. After passing through the terminal fitting 200, the electric wire 800 is inserted into each through hole 131 in a loosely fitted state.

  In addition, as shown in FIG. 12, the holder 130 is formed with a pair of inner holder lock portions 132 each having a horizontally long slit shape formed on one side of both sides in the height direction across the through holes 131. Has been. A claw-like inner holder lock projection 133 is disposed in the inner holder lock portion 132 so as to protrude. In this case, the inner holder lock protrusion 133 is formed on the inner edge of the inner holder lock portion 132 on both sides in the height direction opposite to the through-hole 131 side.

  Further, as shown in FIGS. 12 and 13, on the front surface of the holder 130, a large number of pin-side holder-side positioning projections 134 are formed side by side in the width direction on both sides in the height direction across the through holes 131. Has been. One of the holder side positioning projections 134 disposed on one side is positioned at substantially the same height as the inner inner holder lock portions 132.

  The holder 130 is assembled to the inner housing 10 following the seal member 100. At this time, as shown in FIG. 19, the rear end portions of both holder inner lock portions 19 are inserted into both inner holder lock portions 132, and the inner holder lock projections 133 are elastically inserted into the inner lock recess portions 21. As a result, the holder 130 is fixed to the inner housing 10, and accordingly, the seal member 100 is restricted from coming out of the inner housing 10. Further, when the holder 130 is fixed to the inner housing 10, each holder-side positioning projection 134 is fitted in each holder positioning recess 107 in a positioned state.

  Further, as shown in FIG. 12, each holder-side positioning protrusion is provided on the holder 130 on one side of both sides in the height direction across the through holes 131 and between the inner holder lock portions 132 in the width direction. An outer holder lock portion 135 is formed above 134. The outer holder lock portion 135 includes a doubly-supported bridge portion 136 disposed along the outer edge of the holder 130 on the one side in the height direction away from the formation region of each through hole 131, and the bridge portion. The outer holder lock protrusion 137 protrudes outward from the widthwise center of 136. The bridging portion 136 is configured to be continuous at the same height with the step on the both sides in the width direction across the bridging portion 136 on the outer edge (one outer edge on the height direction) of the holder 130. Further, the holder 130 is formed with a horizontally elongated slit-shaped hollow portion 138 that allows the bridging portion 136 to bend. In other words, the bridging portion 136 is partitioned by the thinned portion 138 and can be bent and deformed to the thinned portion 138 side. Of the both sides in the height direction across the through holes 131 in the holder 130, one side in the height direction where the inner holder lock part 132 and the outer holder lock part 135 are arranged is higher than the other side. A large space is reserved for.

  Further, as shown in FIG. 12, the holder 130 is formed with another pair of outer holder lock portions 135 on both sides in the width direction across the through holes 131. In the case of the outer holder lock portion 135, the bridging portion 136 is disposed along the outer edges on both sides in the width direction across the formation region of each through-hole 131 among the outer edges of the holder 130, and the outer holder lock protrusion 137 is In addition, it is configured such that the bridge portion 136 protrudes laterally outward from the central portion in the height direction, and the lightening portion 138 that partitions the bridge portion 136 penetrates in a vertically long slit shape along with the upper and lower cavities 11. Has been.

  Next, the outer housing 30 will be described. As shown in FIGS. 6 and 10, the outer housing 30 is made of a synthetic resin, and includes a substantially rectangular tube-shaped accommodation portion 31 and a substantially rectangular case-like fitting portion 32 surrounding the accommodation portion 31. ing. In the accommodating portion 31, a pair of accommodating chambers 33 that can accommodate the inner housing 10 are formed side by side in the height direction. Both storage chambers 33 are configured to penetrate in the front-rear direction, and are divided from each other via a horizontal plate-shaped partition wall 34 disposed in the center in the height direction of the storage portion 31. The rear end portion of the accommodating portion 31 and the rear end portion of the fitting portion 32 are connected to each other via a connecting portion 35 along the radial direction. Further, the front end of the accommodating portion 31 is positioned behind the front end of the fitting portion 32 so as to be located behind.

  As shown in FIG. 10, a stepped portion 36 is formed in the storage chamber 33, and the opening area of the front region with the stepped portion 36 as a boundary is smaller than the rear region. As shown in FIG. 6, a pair of stepped outer lock portions 380 are formed at the front end portions on both side surfaces in the width direction in the accommodation chamber 33. When the inner housing 10 is inserted into the accommodation chamber 33 at a normal depth, as shown in FIG. 10, the flange portion 20 abuts on the stepped portion 36, and the further forward insertion operation of the inner housing 10 is restricted. Further, as shown in FIG. 5, the inner inner lock portion 18 is elastically locked to the inner outer lock portion 380, thereby preventing the inner housing 10 from coming out backward, and thus the inner housing 10. Is fixed to the outer housing 30. When the inner housing 10 is fixed to the outer housing 30, as shown in FIG. 10, the front portion of the inner housing 10 is disposed in the fitting portion 32 so as to protrude forward from the front end of the housing portion 31. The groove 14 is positioned slightly forward from the front end of the accommodating portion 31. The housing 500 is configured by housing the inner housing 10 in which the seal member 100 and the holder 130 are assembled in the housing chambers 33 of the outer housing 30.

  As shown in FIG. 2, a fitting recess 900 into which the mating housing 600 enters during fitting is opened between the accommodating portion 31 and the fitting portion 32 and in front of the connecting portion 35. A substantially square annular seal ring 120 is fitted on the outer surface of the accommodating portion 31. The seal ring 120 is made of rubber such as silicon rubber, and is prevented from coming out rearward by coming into contact with the stepped front surface of the stepped portion 36. The seal ring 120 is elastically compressed in the radial direction between the mating housing 600 and the accommodating portion 31 during fitting, thereby fulfilling a role of sealing between the housings 500 and 600 in a liquid-tight manner.

  As shown in FIG. 6, a pair of guide pieces 37 extending in the width direction are formed on the front end edges of the upper and lower walls of the accommodating portion 31 so as to protrude forward. Further, a claw-like outer lock portion 38 for the retainer is formed to protrude forward at one end in the width direction of the front end of the guide piece 37. The guide piece 37 and the retainer outer lock portion 38 are formed in the wall thickness range of the upper and lower walls of the accommodating portion 31. Specifically, both the inner and outer surfaces of the guide piece 37 and the retainer outer lock portion 38 are provided on the accommodating portion 31. It is flush with the inner and outer surfaces of the upper and lower walls without any step (see FIG. 8).

  A plurality of holder outer lock portions 39 are formed at positions facing the inner surfaces of both housing chambers 33 in the rear portion of the outer housing 30 (partly disclosed in FIGS. 2 and 26). Each of the holder outer lock portions 39 is disposed on the inner upper surface and the inner side surfaces of the upper storage chamber 33 and on the inner lower surface and the inner side surfaces of the lower storage chamber 33. Each of the holder outer lock portions 39 has a concave shape in which each of the outer holder lock projections 137 can be fitted, and penetrates the connecting portion 35 to communicate with the fitting concave portion 900.

  In addition, as shown in FIG. 26, the rear surface of the outer housing 30 is paired on both sides in the width direction (which is also on both sides in the width direction with both housing chambers 33 sandwiched) between the drawing regions of the electric wires 800 in the rear surface. Cover mounting portion (as will be described later, it is composed of a side wall 41 and a connecting wall 42. In the case where the side wall 41 and the connecting wall 42 are not distinguished from each other, the cover mounting portions 41 and 42 are denoted by reference numerals. ) Protruding. The two cover mounting portions 41 and 42 are positioned at the same height as the upper end portion of the upper storage chamber 33 and the lower end portion of the lower storage chamber 33, extend in the width direction, and are disposed substantially opposite to each other. Each of the side walls 41 and a pair of connecting walls 42 connected to the outer ends in the width direction of the side walls 41 paired in the height direction and extending in the height direction. Is arranged. The outer surface of the connecting wall 42 is flush with the outer surface of a side wall portion 53 described later of the fitting portion 32 without a step. In addition, in the portal frame defined by the both side walls 41 and the connecting wall 42, the outer lock portions 39 for holders disposed at both ends in the width direction are positioned.

  As shown in FIG. 4, a pair of tapered cover guide surfaces 43 that are gradually inclined inward toward the rear are formed on the outer surfaces of the rear end portions (projecting end portions) of the side walls 41. As will be described later, the wire cover 150 is guided to the initial position by the cover guiding surface 43. In addition, a front end portion (base end portion) that is a portion excluding the cover guide surface 43 among the outer surfaces of the both side walls 41 is a flat surface substantially along the front-rear direction, and slides on an inner surface of a side plate 152 described later of the wire cover 150. It comes to be able to move.

  Further, as shown in FIG. 26, the rear surface of the outer housing 30 is provided on both sides in the height direction sandwiching the lead-out region of each electric wire 800 in the rear surface (also on both sides in the height direction sandwiching the two storage chambers 33). A pair of cover mounting plates 44 having a flat plate shape are formed to protrude rearward. Both the cover mounting plates 44 are arranged substantially parallel to each other along the width direction, and the outer surfaces thereof are flush with the outer surface of an inner wall 56 (to be described later) of the fitting portion 32 without any step.

  As shown in FIGS. 26 and 28, a pair of cover retaining portions 45 are formed on the inner surface of the cover mounting plate 44 so as to protrude in the width direction. Both cover retaining portions 45 are in the form of ribs extending over the entire length of the cover mounting plate 44 in the protruding direction (front-rear direction), and are integrally connected to the rear end of the connecting portion 35 and the rear end of the accommodating portion 31. ing.

  As shown in FIG. 28, a pair of cover mounting guide portions 46 are formed on the inner surface of the cover mounting plate 44 on the outer side in the width direction of both cover retaining portions 45. The cover mounting guide portion 46 includes an initial position guide portion 47 that guides the wire cover 150 to an initial position that will be described later, and a mounting position guide portion 48 that guides the wire cover 150 to a mounting position that will be described later.

  As shown in FIG. 28, the initial position guide portion 47 has a groove-like shape that extends with a substantially constant width along the front-rear direction and opens to the rear, and is formed between a pair of walls in the width direction. One wall is made into the rib-shaped form extended in the front-back direction among both walls. In the case of the initial position guide portion 47 on one side in the width direction (behind the moving direction of the electric wire cover 150 described later), one wall is an end bent and formed at one end in the width direction of the cover mounting plate 44 as shown in FIG. In the case of the initial position guide portion 47 that is configured by the portion rib 49 and is located on the other side in the width direction (front side in the movement direction of the wire cover 150 described later), one wall is configured as a cover retaining portion 45 on the other side in the width direction. Yes. The end ribs 49 are also bent at the other end in the width direction of the cover mounting plate 44 so as to form a pair with the one end side in the width direction.

  Further, of the two walls, the other wall is a substantially square block-shaped cover guide portion 51 protruding from the rear portion of the cover mounting plate 44 as shown in FIG. As shown in FIGS. 1 and 28, the front surface of the cover guide portion 51 is disposed so as to face the fitting recess 900 through a through hole 52 that penetrates the connecting portion 35. In this case, the through hole 52 is formed so as to open in a substantially rectangular shape in the connecting portion 35 as a mold (not shown) for forming the cover guide portion 51 is punched forward. Further, the cover guide portion 51 is visible through the through hole 52 from the front side on the fitting concave portion 900 side.

  As shown in FIG. 28, the mounting position guide portion 48 is in the form of a groove extending along the width direction, crossingly communicates with the substantially first half portion of the initial position guide portion 47, and the through hole 52 and the other end in the width direction. Cross communication at the side. In this case, an L-shaped groove is formed by the initial position guide portion 47 and the mounting position guide portion 48. Further, the rear end of the mounting position guide part 48 is partitioned by a cover guide part 51. That is, among the four sides of the cover guide portion 51, the initial position guide portion 47 is defined by one side on the short side along the front-rear direction, and the mounting position guide is defined by one side on the long side along the width direction adjacent thereto. The part 48 is partitioned. In addition, the width direction one end side of the mounting position guide part 48 is demarcated by the part which closes the front end of the initial position guide part 47 among the rear surfaces of the connection part 35. FIG. Further, each cover retaining portion 45 and each cover mounting guide portion 46 are disposed in a substantially symmetrical pair on both sides across the center in the width direction on the rear surface of the outer housing 30.

  As shown in FIG. 6, the fitting portion 32 includes a pair of side wall portions 53 substantially along the height direction and a pair of upper and lower wall portions 54 substantially along the width direction. An insertion portion 55 is formed in one of the side wall portions 53 so as to open. As shown in FIG. 8, the insertion portion 55 has an opening height that is greater than or equal to the height dimension of the housing portion 31, and has an opening shape that is substantially rectangular in side view and opens at the front end of the sidewall portion 53. The rear end edge of the insertion portion 55 is located slightly behind the front end of the accommodating portion 31. For this reason, the front end portion (including the guide piece 37 and the retainer outer lock portion 38) of the housing portion 31 is visible from the side through the insertion portion 55. In addition, the part facing the insertion part 55 in the other side wall part 53 is closed.

  As shown in FIG. 5, the upper and lower wall portions 54 have a double wall structure portion of an inner wall 56 that is continuous with both side wall portions 53 and an outer wall 57 that covers the outside of the front end portion of the inner wall 56. As shown in FIG. 7, an arcuate border 58 is formed at the rear end of the outer wall 57. As shown in FIG. 5, both end portions in the width direction of the inner wall 56 and both end portions in the width direction of the outer wall 57 are connected to each other via a pair of leg wall portions 59 in the width direction. The outer surface of the leg wall portion 59 is continuous with the outer surface of the side wall portion 53 in the height direction with almost no step. A housing space 400 is formed between the inner wall 56 and the outer wall 57 so as to be open rearward in which a cam plate 92 of a lever 90 described later can be housed. Further, a cam follower introduction groove 60 is formed in the center portion in the width direction of the inner wall 56 so as to extend in the front-rear direction. In the cam follower introduction groove 60, a cam follower (not shown) of the mating housing 600 can be introduced from the front. Further, a substantially cylindrical support shaft 61 is formed on the rear portion of the outer surface of the inner wall 56 so as to protrude immediately after the cam follower introduction groove 60.

  The lever 90 is made of synthetic resin, and as shown in FIG. 26, the operation portion 91 substantially along the height direction and a pair of cams that protrude substantially parallel to each other in the width direction from both ends in the height direction of the operation portion 91 And a plate 92. The lever 90 is mounted on the housing 500 so as to straddle from the rear, and in a state where both the cam plates 92 are fitted and held on the support shaft 61, the operation portion 91 is separated from the rear of the housing 500 at an initial rotation position ( 7) and a rotation completion position (see FIG. 26) where the operation portion 91 is disposed so as to be able to come into contact with one end of the housing 500 (see FIG. 26). Both cam plates 92 are disposed so as to overlap the outer walls of both inner walls 56 and both cover mounting plates 44, and the rear end portions of both cam plates 92 are rearward of the rear ends of both cover mounting plates 44 at the rotation completion position. It is arranged so as to protrude.

  A cover lever lock portion (not shown) is formed in the operation portion 91, and a cam groove 93 is formed in the cam plate 92 as shown in FIG. In the initial rotation position, the entrance of the cam groove 93 communicates with the cam follower introduction groove 60, and a cam follower (not shown) of the mating housing 600 can enter through the cam follower introduction groove 60. When the lever 90 is rotated from the initial rotation position toward the rotation completion position, the cam follower slides on the groove surface of the cam groove 93, and a cam action is exhibited between the two housings 500 and 600. 500 and 600 are fitted with a low fitting force. When the lever 90 reaches the rotation completion position, the cam follower reaches the back end side of the cam groove 93, and the cover lever lock portion is elastically locked to a lever cover lock portion 153 described later. The dynamic operation is restricted, and both the housings 500 and 600 are held in a properly fitted state. In the turning process of the lever 90, a fitting force is applied to both the cam plates 92 and both the cam plates 92 try to expand outward. In this embodiment, as shown in FIG. Since the outer wall 57 is located outside the outer peripheral edge of the cam plate 92, if both the cam plates 92 abut against the outer wall 57, the two cam plates 92 will not expand further.

  The electric wire cover 150 is made of a synthetic resin and is attached to the rear surface so as to cover the rear surface of the housing 500 as shown in FIG. Specifically, as shown in FIGS. 24 and 25, the electric wire cover 150 has a cap shape and is disposed in front of the back plate 151 disposed opposite to the rear surface of the housing 500 and the upper and lower edges of the back plate 151. And a pair of side plates 152 projecting from each other. Each electric wire 800 drawn out from the rear surface of the housing 500 is accommodated between both side plates 152 and is forcibly bent by the back plate 151 and led out from one end opening of the electric wire cover 150 to the outside. A lever cover lock portion 153 is formed at the end opposite to the one end opening of the back plate 151 so as to be able to bend, and is located between the both side plates 152 via a slit 154 along the front-rear direction. A hanging plate 155 is formed substantially along the direction.

  The electric wire cover 150 is slidable in the width direction between the initial position (see FIG. 29) and the attachment position (see FIG. 30) along the rear surface of the housing 500 when the electric wire cover 150 is attached to the housing 500. . While the electric wire cover 150 slides, the front end edge of the both side plates 152 can slide on the rear surface of the housing 500, specifically, the rear surface of the connecting portion 35.

  As shown in FIG. 29, a pair of retaining projections 156 are formed on the outer surface of the side plate 152 so as to project in the width direction. Further, on the outer surface of the side plate 152, a pair of cover mounting guide receiving portions 157 are formed on both outer sides in the width direction of both retaining projections 156. The cover mounting guide receiving portion 157 includes a first rib 158 along the front-rear direction and a second rib 159 along the width direction, and has an L shape as a whole. Then, both ends in the width direction of the cover mounting guide receiving portion 157 (the right edge of the first rib 158 in FIG. 29 and the left edge of the second rib 159 in FIG. 29) are slidable with the initial position guide portion 47. The receiving portion 161 is configured. Further, both front and rear ends of the second rib 159 of the cover mounting guide receiving portion 157 are configured as mounting position guide receiving portions 162 that can slide with the mounting position guide portion 48. In the case of the present embodiment, as shown in FIG. 24, the front end of the mounting position guide receiving portion 162 is located at the front end of the side plate 152 and is disposed substantially along the width direction.

  Next, the retainer 70 will be described. The retainer 70 is made of synthetic resin, and is inserted from the side into the fitting portion 32 through the insertion portion 55 as shown in FIGS. 2, 4, and 5. It can enter the mounting groove 14 of the accommodated inner housing 10 and can be locked to the terminal fitting 200.

  As shown in FIGS. 22 and 23, the retainer 70 includes a substantially rectangular plate-shaped front wall 71, a pair of guide walls 72 protruding rearward from both height direction ends of the front wall 71, and a width direction of the front wall 71. A closing wall 73 protruding rearward from the other end and having both ends in the height direction connected to the guide wall 72, and a connecting wall 74 protruding rearward from the center in the height direction of the front wall 71 and connected to the closing wall 73 at the other end in the width direction. And a plurality of retaining portions 75 extending substantially in the height direction projecting inward (inner insertion space 77 side described later) from the rear end portions of both guide walls 72 and the communication wall 74. Yes. One side end of the retainer 70 in the width direction is an entry opening 76 into which the two inner housings 10 accommodated in both the accommodation chambers 33 can enter collectively. The spaces on both sides of the retainer 70 with the connecting wall 74 interposed therebetween are inner insertion spaces 77 into which both inner housings 10 can be inserted. The closing wall 73 has a shape corresponding to the insertion portion 55 and is configured to have a size capable of closing the insertion portion 55 when viewed from the side as shown in FIG.

  Further, the front wall 71 is configured to have a size capable of covering the front surfaces of both inner housings 10 when viewed from the front. As shown in FIG. 3, a plurality of tab insertion portions 78 are formed in the front wall 71 at positions facing the cavities 11 of both inner housings 10. A male tab 610 attached to the mating housing 600 is inserted into each tab insertion portion 78 when fitted. Further, as shown in FIG. 22, a pair of rib receiving holes 79 having a slit shape along the width direction are formed through the center portion in the height direction of the front wall 71. The rib receiving hole 79 is located at the same height as the connecting wall 74, and a portion of the connecting wall 74 facing the rib receiving hole 79 is open. As shown in FIG. 3, the rib 630 of the mating housing 600 can be inserted into the rib receiving hole 79 from the front.

  As shown in FIGS. 5 and 23, a pair of rail portions 80 into which the guide pieces 37 can be fitted are formed on the inner surfaces of the rear end portions of both guide walls 72 and on the rear surface of the retaining portion 75. The rail portion 80 has a groove shape extending in the width direction, and an outer retainer lock portion 81 is formed at one end portion in the width direction. The outer retainer lock portion 81 is configured to protrude into the rail portion 80 from the inner surface of the guide wall 72. In the process in which the retainer 70 is mounted on the outer housing 30, when the guide piece 37 is slidably guided on the rail portion 80 and the retainer 70 is normally mounted on the outer housing 30, as shown in FIG. 5, the outer retainer lock portion 81 is elastically locked to the retainer outer lock portion 38 so that the retainer 70 is prevented from being detached from the outer housing 30.

  As shown in FIGS. 2, 5, and 23, a bridging portion 82 that extends in the width direction substantially parallel to the guide wall 72 is formed at the rear end of the connecting wall 74. Then, as shown in FIG. 23, the plurality of retaining portions 75 are formed on the rear end portion of the upper guide wall 72 and the bridging portion 82 so as to correspond to the inner housing 10 accommodated in the upper accommodation chamber 33. A rear end portion of the lower guide wall 72 and a bridge so as to correspond to a pair of upper inner retaining portions 83 that protrude from the upper end so as to face each other and the inner housing 10 housed in the lower housing chamber 33. It consists of a pair of lower inner retaining portions 84 that protrude from the lower end of the portion 82 so as to face each other. In the bridging portion 82, an upper inner retaining portion 83 and a lower inner retaining portion 84 project in both the upper and lower directions. Each retaining portion 75 has a vertical plate shape extending substantially over the entire width of the retainer 70 and can enter the corresponding mounting groove 14 of the inner housing 10.

  On the front surface of each retaining portion 75, a relief groove 85 is formed over the entire width so as to avoid interference with the base end portion 15 of each lance 12 when inserted into the mounting groove 14. In addition, a portion of the front surface of each retaining portion 75 on the front side in the protruding direction from the escape groove 85 is a retaining body portion 86 that can contact the retaining member 204. When each retaining portion 75 is properly inserted into the mounting groove 14, the retaining body portion 86 faces the retaining member 204 of the terminal metal member 200 that is normally inserted into each cavity 11, thereby the terminal metal member 200. Is prevented from falling into the cavity 11.

Next, the operation of this embodiment will be described.
In assembly, the seal member 100 is first attached to the rear surface of the inner housing 10. Then, the inner lock portions 19 for both holders are inserted into the lock receiving holes 104 in a liquid-tight manner, and the inner side positioning projections 22 are inserted into the inner side positioning recesses in a positioned state. In this case, if the sealing member 100 is in an upside down or upside down position with respect to the inner housing 10, the sealing member 100 protrudes greatly from the outer edge of the inner housing 10, so that the sealing member 100 moves into the inner housing 10. You can know that it is attached in an illegal posture.

  Subsequently, the holder 130 is attached to the inner housing 10 from the rear. As shown in FIG. 19, the holder 130 is fixed to the inner housing 10 by inserting and connecting the both holder inner lock portions 19 into the both inner holder lock portions 132, and the holder 130 and the inner housing 10 are connected to each other. The seal member 100 is sandwiched therebetween. In this case, when the holder 130 is in an upside-down or front-back orientation with respect to the inner housing 10 and the seal member 100, the holder 130 protrudes greatly from the outer edge of the inner housing 10 and the outer edge of the seal member 100, and The holder lock protrusion 133 cannot engage the inner lock recess 21 for the holder, and this prevents the holder 130 from being attached to the inner housing 10 in an unauthorized posture.

  Subsequently, the terminal fitting 200 with the electric wire 800 is inserted into each cavity 11 of the inner housing 10 from the rear. In the insertion process, the terminal fitting 200 is inserted from the through hole 131 into the corresponding cavity 11 through the seal hole 101. When the terminal fitting 200 is properly inserted into each cavity 11, the lance 12 is elastically locked to the locking projection 203, and each terminal fitting 200 is temporarily prevented from coming into the cavity 11. Further, the outer peripheral surface of each electric wire 800 is elastically brought into close contact with each inner peripheral lip 102 of the seal member 100, so that the seal around each electric wire 800 is taken.

  Next, as shown in FIG. 10, the inner housing 10 is inserted into the two housing chambers 33 of the outer housing 30 from the rear. When the inner housing 10 is accommodated in both the accommodation chambers 33 at a normal depth, the inner lock portions 18 for both outer members are elastically locked to the outer lock portions 380 for both inner portions, and the inner housing 10 is accommodated in the accommodation chamber 33. The outer holder lock portion 135 is elastically locked to the holder outer lock portion 39 after the outer portion holder lock portion 135 is deformed, and the holder 130 is accommodated in the housing chamber 33. In this state, the play restriction state is maintained. Thereby, the fluctuation | variation of the pressing position of the sealing member 100 by the holder 130 is suppressed, and the predetermined sealing performance of the sealing member 100 is ensured even after the mating housing 600 is fitted.

  In the above case, when the inner housing 10 is properly accommodated in the both housing chambers 33 of the outer housing 30, the outer peripheral lips 103 are elastically in close contact with the inner circumferential surfaces of the both housing chambers 33, A seal is taken. Further, when the inner housing 10 is vertically inverted with respect to the outer housing 30, the outer holder lock portions 135 are not positioned corresponding to the holder outer lock portions 39, and the inner housing 10 is accommodated in the housing chamber 33. Not held in.

  Next, as shown in FIGS. 1, 4, and 5, the retainer 70 is inserted into the outer housing 30 from the side through the insertion portion 55. In this case, the retainer 70 is inserted into the insertion portion 55 in a substantially positioned state, and the front portion of the corresponding inner housing 10 (the portion in front of the mounting groove 14) is fitted into the inner insertion space 77 of the retainer 70 through the entry opening 76. The In the insertion process, the retaining portions 75 enter the corresponding mounting grooves 14 of the inner housings 10, the rail portions 80 and the bridging portions 82 are fitted in the steps 16, and the rail portions 80 Both guide pieces 37 enter to guide the mounting operation of the retainer 70.

  As shown in FIG. 5, when the retainer 70 reaches the proper mounting position, the outer retainer lock portion 81 is elastically locked to the retainer outer lock portion 38, and the closing wall 73 is positioned in front of the inner housing 10. The retainer 70 is held by the outer housing 30 and the inner housing 10 so as to be able to come into contact with the side surfaces of the parts. Further, when the retainer 70 reaches the proper mounting position, as shown in FIG. 2, the retaining portions 75 prevent the terminal fittings 200 that are normally inserted into the cavities 11 of the inner housings 10 from retaining. Each terminal fitting 200 is secondarily prevented from coming off into the cavity 11. At this time, if the terminal fitting 200 that is not normally inserted into the cavity 11 but remains in the half-insertion position is included, the retaining portion 75 interferes with the terminal fitting 200 in the half-inserted state. It is restricted that 70 reaches a regular mounting position. In that case, the terminal fitting 200 in the half-inserted state may be pushed into the regular insertion position.

  On the other hand, if at least one of the inner housings 10 is not accommodated in the corresponding accommodation chamber 33 at the normal depth and remains in the half-insertion position, the mounting groove 14 is formed in the accommodation chamber 33. Even if the mounting groove 14 is located in front of the storage chamber 33, the mounting groove 14 is not positioned corresponding to the retaining portion 75 of the retainer 70 positioned approximately by the insertion portion 55. The entry of 75 into the mounting groove 14 is restricted. For this reason, it can be known at an early stage that the inner housing 10 is not properly accommodated by restricting the mounting operation of the retainer 70. In addition, if the inner housing 10 is not accommodated in the accommodation chamber 33 at a normal depth, the outer retainer lock portion 81 is provided with the retainer outer lock portion 81 in addition to the mounting groove 14 not corresponding to the retaining portion 75. Since the retainer 70 is detached from the outer housing 30, it can be surely known that the retainer 70 is not properly accommodated in the inner housing 10.

  An electric wire cover 150 is attached to the rear surface of the housing 500. In this case, as shown in FIG. 26 to FIG. 29, the wire cover 150 is substantially opposite to the rear surface of the housing 500 in a state where the lever 90 is kept in the rotation completion position (this is not disclosed in FIG. 28). It is pulled down from the orthogonal direction (the fitting direction of the housing 500). Then, each initial position guide receiving portion 161 slides on each initial position guide portion 47, and the electric wire cover 150 is guided to the initial position in a state of being positioned in the width direction. Further, in the process of moving to the initial position, the both side plates 152 are smoothly guided to the outer surface side of each side wall 41 by slidably displacing along the cover guide surface 43 of each side wall 41.

  As shown in FIG. 26, in the initial position, of the cover mounting portions 41 and 42 positioned on both front and rear sides (both sides in the width direction) of the electric wire cover 150, it is located rearward in the movement direction to the mounting position of the electric wire cover 150. The inner surfaces of both side plates 152 of the electric wire cover 150 are arranged so as to be able to contact the outer surface of the side wall 41 in the cover mounting portions 41 and 42 to be contacted. For this reason, each side wall 41 restricts the side plates 152 from falling inward. In addition, the side wall 41 in the cover mounting portions 41 and 42 located rearward in the moving direction of the wire cover 150 is opposed to the end rib 49 in the height direction, and the side plate 152 is sandwiched between the end rib 49. Are arranged as follows.

  In the above state, as shown in FIGS. 29 to 30, the wire cover 150 is slid to the mounting position along the rear surface of the housing 500. At this time, each mounting position guide receiving portion 162 slides on each mounting position guide portion 48, and the electric wire cover 150 is guided to the mounting position in a state of being positioned in the front-rear direction. In addition, as shown in FIGS. 26 to 27, in the process of moving the electric wire cover 150, the both side plates 152 are slidably displaced on the outer surface of the side wall 41, so that the electric wire cover 150 can be moved to the mounting position without falling down. It is guided smoothly.

  As shown in FIGS. 27 and 30, when the wire cover 150 reaches the mounting position, each retaining protrusion 156 elastically climbs over each cover retaining portion 45, and the wire cover 150 returns to the initial position. Is regulated. When the electric wire cover 150 reaches the mounting position, the first ribs 158 are arranged so as to be able to contact the cover guide portions 51, and the drooping plate 155 contacts the connecting wall 42 as shown in FIG. It arrange | positions so that further movement operation of the electric wire cover 150 is controlled by this. Therefore, the wire cover 150 is held in the movement restricted state at the mounting position. The drooping plate 155 is brought to a position where it can come into contact with the connecting wall 42 when both side walls 41 enter the slits 154. In addition, at the mounting position, as shown in FIG. 27, both side walls 41 enter both slits 154 so that the inner surfaces of both side plates 152 can come into contact with the outer surfaces of the side walls 41 of both cover mounting portions 41, 42. It arrange | positions and it is controlled reliably that the both-sides board 152 falls inward.

  By the way, in the case of the present embodiment, the rotation direction of the lever 90 can be selected in either the clockwise direction or the counterclockwise direction, and accordingly, the moving direction of the wire cover 150 is also switched between the mounting position and the initial position. It can be changed to either one of both sides in the width direction. However, even if the moving direction of the electric wire cover 150 is changed, the inner surfaces of both side plates 152 can be contacted and slidable on the outer surfaces of the side walls 41 of the cover mounting portions 41 and 42 located rearward in the moving direction, as described above. The side plates 152 are prevented from falling down and the function of guiding the wire cover 150 to the mounting position is exhibited. Further, at the mounting position, the inner surfaces of the side plates 152 are placed on the outer surfaces of all the side walls 41. It arrange | positions so that contact | abutting is possible, and the inward fall of the both-sides board 152 is prevented reliably.

  Thereafter, the housing 500 is fitted into the mating housing 600. In this case, as shown in FIG. 3, the mating housing 600 is formed with a substantially horizontal plate-like rib 630 that can guide the fitting operation and protrudes forward. It is inserted into the interior of the retainer 70 through and inserted into the gap between the pair of upper and lower inner housings 10. Here, both ribs 630 are positioned at substantially the same height as the partition wall 34 in the housing chamber 33 when fitted, and serve as a partition wall that partitions the front portions of the inner housings 10 together with the connecting wall 74. Become.

As described above, according to the present embodiment, the following effects can be obtained.
First, since it is not necessary to provide the retainer 70 individually for each of the plurality of inner housings 10, the number of parts is reduced, and the work load required for assembling the retainer 70 is also reduced.

  In addition, since the retainer 70 is inserted into the outer housing 30 through the insertion portion 55 from the direction intersecting the insertion direction after the inner housing 10 is inserted into the accommodation chamber 33, the inner that is not properly inserted into the accommodation chamber 33. When the retainer 70 interferes with the housing 10 from the side and the insertion operation of the retainer 70 is restricted, it can be detected that the inner housing 10 is not properly housed in the housing chamber 33.

  In addition, the inner wall 56 and the outer wall 57 are arranged on the upper and lower wall portions 54 of the fitting portion 32 of the outer housing 30 on both sides of the insertion portion 55 and arranged substantially orthogonal to the side wall portion 53 where the insertion portion 55 opens. Therefore, even if there is a situation in which the insertion portion 55 is greatly opened in the outer housing 30, it is possible to effectively suppress the strength of the outer housing 30 from being lowered. Moreover, since the accommodating space 400 of the cam plate 92 of the lever 90 is formed between the inner wall 56 and the outer wall 57, the double wall structure is not merely for securing the strength of the outer housing 30, but the cam plate 92. It is effectively used as a housing part.

  Further, when mating with the mating housing 600, the rib 630 of the mating housing 600 is inserted into the retainer 70 through the rib receiving hole 79, and the rib 630 also serves as the partition wall 34 that partitions the inner housings 10. The overall configuration is simplified, and interference between the retainer 70 mounted in the outer housing 30 and the partition wall 34 can be easily avoided.

  Further, according to the present embodiment, the holder 130 is fixed to the inner housing 10 via the inner holder lock portion 132 and is also fixed to the outer housing 30 via the outer holder lock portion 135. The movement of the holder 130 in the inside 30 is restricted, and the change in the pressing position of the seal member 100 by the holder 130 is suppressed. As a result, the sealing performance of the sealing member 100 is exhibited well. Moreover, when the holder 130 is fixed to the inner housing 10, the inner holder lock portion 132 is elastically locked to the holder inner lock portion 19, so that ultrasonic welding or the like described in Japanese Patent No. 3266115 is performed. It is not necessary to use such special locking means, and workability is improved.

  Moreover, the inner housing 10 has the outer inner lock portion 18, the outer housing 30 has the inner outer lock portion 380, and the outer inner lock portion 18 is elastically locked to the inner outer lock portion 380. As a result, the inner housing 10 is fixed to the outer housing 30, so that both the front and rear sides of the seal member 100 are positioned, and the sealing performance of the seal member 100 is better exhibited.

  Further, the outer holder lock portion 135 has a doubly supported beam-like bridge portion 136 that can be bent at the outer peripheral edge of the holder 130, and a hollow portion that allows the bridge portion 136 to bend inside the holder 130. Since 138 is formed, the increase in size of the holder 130 is avoided, and the smoothness of the bending operation of the outer holder lock portion 135 is ensured.

  Further, according to the present embodiment, the inner holder lock portion 132 and the outer holder lock portion 135 are arranged in a biased manner in the region of the holder 130 opposite to the region where the plurality of through holes 131 are formed. Therefore, the formation region of each through-hole 131 and the arrangement region of the inner holder lock portion 132 and the outer holder lock portion 135 are distinguished from each other, and in addition to improving space efficiency, the holder 130 is provided with the inner housing. 10 and the outer housing 30 are avoided from being reversed and mounted in the direction in which both regions are arranged.

  Further, since the inner lock part 19 for the holder and the holder lock part 132 for the inner are disposed at positions where the inner housing 10 and the holder 130 cannot be locked with each other when the improper assembly posture is adopted, the holder 130 is It is guaranteed that the inner housing 10 is assembled in a normal posture.

  Further, the holder outer lock portion 39 and the both outer holder lock portions 135 are also arranged at positions where they cannot be locked with each other when the outer housing 30 and the holder 130 take an improper assembly posture. Is secured to the outer housing 30 in a normal posture.

  Further, according to this embodiment, when the inner housing 10 is not accommodated in the accommodation chamber 33 of the outer housing 30 at a regular depth, the guide wall 72 as the outer retainer engaging portion is the retainer outer engaging portion. The retaining portions 75 as the inner retainer engaging portions are restricted from entering the mounting grooves 14 as the retainer inner engaging portions, and are inserted into the insertion portion 55 as the inner engaging portion. Since the retainer lock portion 81 cannot be locked to the retainer outer lock portion 38, the retainer 70 is not properly mounted, thereby detecting that the inner housing 10 is not properly housed in the housing chamber 33 of the outer housing 30. be able to. In this case, since the retainer 70 also has a function of detecting the accommodation state of the inner housing 10, the configuration is simplified as compared with the case where a dedicated detection member is provided in addition to the retainer 70.

  The inner housing 10 is formed with a mounting groove 14 serving as an inner engaging portion for the retainer, and each retaining portion 75 serving as the inner retainer engaging portion is formed in the inner housing 10 in the housing chamber 33 at a proper depth. When it is inserted, it enters the mounting groove 14 from a direction intersecting the insertion direction. Therefore, it can be known at an early stage that the inner housing 10 is not properly accommodated in the accommodation chamber 33 of the outer housing 30 by the inner retainer engaging portion not entering the mounting groove 14.

  Further, an insertion portion 55 as an outer engaging portion for the retainer is formed in the outer housing 30 so as to open, and a guide wall 72 as an outer retainer engaging portion is inserted into the insertion portion 55, so that each retaining member is prevented. Since the portion 75 is substantially positioned at a position where it can enter the mounting groove 14, each retaining portion 75 is accurately positioned to correspond to the mounting groove 14 through the insertion portion 55, and detection reliability is improved.

  Further, since the retainer outer engaging portion and the outer retainer engaging portion are also constituted by the retainer outer lock portion 38 and the outer retainer lock portion 81 that can be elastically locked to each other, the retainer 70 is attached to the outer housing 30. By not being elastically locked, it can be surely known that the inner housing 10 is not properly accommodated in the accommodation chamber 33 of the outer housing 30.

  In addition, since the retainer outer lock portion 38 is configured to protrude forward from the front end edge of the storage chamber 33, it is possible to prevent the connector from becoming large in the height direction or the width direction.

  In addition, according to the present embodiment, the edge of the both side plates 152 of the electric wire cover 150 slides on the rear surface of the housing 500, so that the electric wire cover 150 is slid from the initial position to the mounting position and fitted from the initial position. In the process toward the mating position, the side plates 152 are slidably disposed on the pair of side walls 41 located on the rear side in the movement direction among the side walls 41 to guide the movement of the electric wire cover 150. Both side plates 152 are arranged so that they can come into contact with the side walls 41 located on both the front and rear sides to prevent the side plates 152 from falling inward, and the side walls 41 do not play even if the moving direction of the wire cover 150 is changed. Since the above-described movement guide function and inward fall prevention function are properly exhibited, the electric wire cover 150 is mounted on the housing 500 so as not to fall inward in a space efficient manner. Theft is possible.

  Further, since the sloped cover guide surface 43 on which the inner surface of the side plate 152 can slide when the electric wire cover 150 moves toward the initial position is formed on the outer surface of the side wall 41, the electric wire cover 150 is covered with the cover. It is guided to the lead-in surface 43 and smoothly reaches the initial position.

  Moreover, the cover guiding surface 43 is formed only at the tip of the side wall 41, and an area where the inner surface of the side plate 152 can slide or abut on the portion of the outer surface of the side wall 41 excluding the cover guiding surface 43 is secured. Therefore, the function of guiding the movement of the side wall 41 with respect to the electric wire cover 150 and the function of preventing the internal fall are exhibited without any problem.

  In addition, a connecting wall 42 is formed on the rear surface of the housing 500 so as to connect the pair of side walls 41 facing each other in the front-rear direction (second direction) of the pair of side walls 41. When the wire cover 150 reaches the mounting position, the drooping plate 155 comes into contact with the connecting wall 42, and the wire cover 150 is stopped from moving.

  A pair of cover mounting plates 44 having inner surfaces substantially along the width direction (first direction) are formed at both ends in the height direction (third direction) across the rear surface of the housing 500, and both cover mounting plates are formed. A mounting position guide portion 48 extending in the width direction and an initial position guide portion 47 extending in the height direction are formed on the inner surface of 44, and a mounting position guide receiving portion 162 and an initial position are formed on the outer surfaces of both side plates 152. A guide receiving portion 161 is formed, and the initial position guide receiving portion 161 slides on the initial position guide portion 47, whereby the electric wire cover 150 is guided to the initial position, and then the mounting position guide receiving portion 48 sets the mounting position guide receiving portion. Since the electric wire cover 150 is guided to the mounting position by sliding 162, the electric wire cover 150 is moved and guided in an L shape to reach the mounting position. 150 is less likely to escape.

  In addition, the housing 500 is formed with a fitting recess 900 into which the mating housing 600 can be fitted, and the mounting position guide portion 48 and the initial position guide portion 47 protrude from the inner surface of the cover mounting plate 44. The cover guide portion 51 is formed so that the front end surface of the cover guide portion 51 faces the fitting concave portion 900. Therefore, the cover is covered by a mold (not shown) used for molding the fitting concave portion 900. It is possible to mold the front end surface of the guide portion 51 in the fitting direction, and the moldability is excellent.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following aspects are also included in the technical scope of the present invention.
(1) As shown in FIG. 31, an arcuate recess 69 may be cut out at the rear end of the connecting wall 42. As a result, each electric wire 800 drawn out from the rear surface of the housing 500 enters the recess 69 and is released.
(2) Three or more accommodating chambers may be formed in the outer housing, and one retainer corresponding to three or more inner housings accommodated in each accommodating chamber may be assembled in the outer housing.
(3) When the front type retainer is assembled into the outer housing from the front and the inner housing is not properly inserted into the housing chamber, the inner retainer engaging portion does not engage with the retainer inner engaging portion. There may be.
(4) In the initial position, the inner surfaces of both side plates of the wire cover may be arranged so as to be able to contact the outer surface of each side wall of each cover mounting portion on both sides in the moving direction of the wire cover.
(5) In the above-described embodiment, in a plurality of cases where the concave portion and the protruding portion are unevenly fitted, if there is no particular problem, the concave shape may be changed to a protruding shape, and the protruding shape may be changed to a concave shape. .

DESCRIPTION OF SYMBOLS 10 ... Inner housing 11 ... Cavity 14 ... Mounting groove 18 ... Outer inner lock part 19 ... Holder inner lock part 30 ... Outer housing 33 ... Storage chamber 34 ... Septum 38 ... Retainer outer lock part 39 ... Holder outer lock part 41 .. side wall (cover mounting part)
42 ... Connecting wall (cover mounting part)
43 ... Cover guiding surface 44 ... Cover mounting plate 47 ... Initial position guide part 48 ... Mounting position guide part 51 ... Cover guide part 55 ... Insertion part 56 ... Inner wall 57 ... Outer wall 70 ... Retainer 71 ... Front wall 75 ... Retaining part 79 ... Rib receiving hole 81 ... Outer retainer lock part 90 ... Lever 91 ... Operating part 92 ... Cam plate 100 ... Seal member 101 ... Seal hole 130 ... Holder 131 ... Through hole
132 ... Inner holder lock part 135 ... Outer holder lock part 137 ... Outer holder lock protrusion 138 ... Meat removal part 150 ... Electric wire cover 161 ... Initial position guide receiving part 162 ... Mounting position guide receiving part 200 ... Terminal fitting 380 ... Inner outer lock portion 500 ... housing 600 ... mating housing 610 ... male tab 630 ... rib 800 ... electric wire 900 ... fitting recess

Claims (5)

An inner housing having a plurality of cavities into which terminal fittings can be inserted and having an inner lock portion for a holder,
An outer housing having a housing chamber capable of housing the inner housing and having an outer lock portion for a holder;
A seal member that is disposed so as to be capable of coming into contact with the inner housing from the rear, and has a plurality of seal holes into which the electric wires connected to the terminal fittings can be liquid-tightly inserted at positions communicating with the plurality of cavities. When,
The seal member is disposed behind the seal member to prevent the seal member from coming off, and has an inner holder lock portion and an outer holder lock portion, and the inner holder lock portion is elastic to the holder inner lock portion. The outer holder lock portion is fixed to the inner housing by being locked to the outer housing, and the holder fixed to the outer housing is elastically locked to the outer lock portion for holder. Prepared,
The outer holder lock portion is in the form of a doubly supported beam that can be bent at the outer periphery of the holder,
The connector is characterized in that a hollow portion for allowing the outer holder lock portion to bend is formed inside the holder .   The inner housing has an inner inner lock portion, the outer housing has an inner outer lock portion, and the outer inner lock portion is elastically locked to the inner outer lock portion. The connector according to claim 1, wherein the inner housing is fixed to the outer housing. The holder has a plurality of through-holes into which the electric wire is inserted at a position communicating with the seal hole, and the holder has a region opposite to a region where the plurality of through-holes are formed. The connector according to claim 1 , wherein the inner holder lock portion and the outer holder lock portion are arranged in a biased manner . The inner lock part for holder and the holder lock part for inner are arranged at positions where they cannot be locked with each other when the inner housing and the holder are in an improper assembly posture. Item 4. The connector according to any one of Items 1 to 3. 2. The holder outer lock portion and the outer both holder lock portions are arranged at positions where they cannot be locked to each other when the outer housing and the holder are in an improper assembly posture. The connector according to any one of 1 to 4.

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