JP2017188322A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a cover from being lost or mounting of the cover from being forgotten.SOLUTION: A connector disclosed herein is a bolt fastening connector 10 and comprises: a housing 20 including a bolt accommodation part 22 including an upper end opening 23 for fastening a bolt B; and a cover 40 including a fitting part 41 that can be fitted to the upper end opening 23 in a liquid-tight manner and being movable in a direction where the fitting part 41 is fitted and separated between a fitting start position arranged just above the upper end opening and a fitting completion position fitted to the upper end opening 23. The cover 40 includes a lock piece 43 for bringing the cover 40 onto a state assembled with the housing 20 while making a fitting part 41 movable in a longitudinal direction between the fitting start position and a retraction position where the fitting part 41 is retracted from a position just above the upper end opening 23, by bringing the fitting part into an engaged state with a pair of engage ribs 26 provided on both side faces of the housing 20 so as to extend from the retraction position to the fitting start position.SELECTED DRAWING: Figure 1

Description

  The technology disclosed by this specification is related with a connector.

  For example, a connector described in Japanese Patent Application Laid-Open No. 2015-130300 (the following Patent Document 1) is known as a connector having a work opening for tightening a bolt. This connector has a housing with a work opening and a cap that has a sealing function and can be attached to the work opening. After the bolts are tightened in the work opening, the cap is attached to the work opening. This prevents water, dust and the like from entering from the work opening of the housing.

JP-A-2015-130300

  By the way, according to the above connector, since the cap is provided separately from the housing, there is a risk that the cap may be lost during maintenance or the cap may be forgotten to be assembled after tightening the bolt. If it cannot be attached, the waterproof performance of the connector will be lost.

  In the present specification, a technique for suppressing loss or forgetting to attach a cover is disclosed.

  The connector disclosed by this specification has a housing having an opening for tightening a bolt, and a fitting portion that can be fitted in a liquid-tight manner in the opening, and the fitting portion is arranged in front of the opening. A cover movable between a fitting start position and a fitting completion position fitted in the opening in a fitting and detaching direction, and the housing is fitted with the fitting portion fitted from before the opening. An engagement portion extending from a retracted position retracted in a direction intersecting with the mating and disengaging directions toward the fitting start position, and the cover includes the fitting portion at the fitting start position and the retracted position. A connector having an engaging portion that is engaged with the engaged portion while being movable between the two.

  According to the connector configured as described above, the engagement portion of the cover can be moved between the engagement start position and the retracted position by engaging the engaged portion of the housing and the engagement portion of the cover. In this state, the cover and the housing can be assembled. Thereby, it is possible to suppress the loss of the cover and forgetting to attach the cover to the housing, and it is possible to prevent the waterproof performance of the connector from being lost due to the cover not being attached. In addition, for example, compared to a case where the housing and the cover are connected by a hinge and the cover is held near the fitting start position by the restoring force of the hinge, the cover is prevented from interfering with the bolt when tightening the bolt. be able to.

The connector disclosed by this specification is good also as the following structures.
The engaged portion is provided in a rib shape extending linearly in the front-rear direction between the retracted position and the fitting start position on the side surfaces on both sides in the width direction of the housing. The housing is provided with a pair along side surfaces on both sides in the width direction. The engagement portion is provided so as to penetrate in the front-rear direction, and the fitting portion of the cover is fitted with the retracted position. It is good also as a structure provided with the guide recessed part by which the said to-be-engaged part is penetrated in the front-back direction so that it may guide in the front-back direction between start positions.

  According to such a configuration, the engaged portion is inserted through the guide recess in the front-rear direction, so that the fitting portion can be guided in the front-rear direction between the retracted position and the fitting start position. It can be moved smoothly in the front-rear direction.

  The engaging portion is provided so as to be elastically displaceable toward an outer side that is a direction away from the housing, and the engaging portion is configured such that the fitting portion reaches from the fitting start position to the fitting completion position. In the process, it is in a state where it is elastically displaced by interfering with the lock part protruding from the outer surface of the housing, and in the state where the fitting part reaches the fitting completion position, the interference with the lock part is released, It is good also as a structure which can be latched in the detachment | leave direction of the said lock part and the said fitting part so that the said fitting part may be hold | maintained in the said fitting completion position.

  According to such a configuration, the engaging portion for guiding the cover from the retracted position to the fitting start position can function as a lock mechanism for locking the cover to the fitting completion position. Thereby, compared with the case where the engagement part for guiding a cover and the lock part for locking a cover to a fitting completion position are provided in a cover separately, it can prevent that a cover enlarges. .

  In the housing, the rear end portion of the fitting portion on the retracted position side abuts on the rear side where the fitting portion is opposite to the fitting start position from the retracted position, and the fitting portion is It is good also as a structure which has the concave-shaped groove part which the front-end part by the side of the said fitting start position of the said fitting part contact | abuts in the front side which is the opposite side to the said retracted position rather than the said fitting start position.

  According to such a configuration, when the fitting portion moves between the retracted position and the fitting start position, the fitting portion moves when the fitting portion moves between the fitting start position and the retracted position. And the groove edge of the groove portion come into contact with each other, so that the cover can be prevented from falling out of the housing due to the fitting portion detaching excessively from the retracted position or the fitting start position.

A taper-shaped guide surface that guides the guide recess of the engagement portion may be provided at an end portion on the rear side that is the retracted position side of the engaged portion.
According to such a structure, a fitting part can be fitted in a groove part because the guide recessed part of an engaging part is guided by the guide surface of a to-be-engaged part. Thereby, the workability | operativity which attaches a cover to a housing can be improved compared with the case where an engaging part is forcibly fitted with respect to a to-be-engaged part, for example, and a fitting part is fitted in a groove part.

The housing may include a positioning portion that contacts the engaging portion of the cover and positions the fitting portion at the fitting start position.
According to such a configuration, when the cover is moved from the retracted position to the mating start position, the mating unit is moved to the mating start position by moving the mating unit to a position where it comes into contact with the positioning unit. Can do. Thereby, since the operation | work which aligns a fitting part to a fitting start position can be simplified, the working efficiency of a fitting operation | work can be improved.

  According to the technology disclosed in this specification, it is possible to suppress the loss or forgetting to attach the cover.

The perspective view of the connector which shows the state by which the fitting part of the cover was distribute | arranged to the retracted position The perspective view of the connector which shows the state by which the fitting part of the cover was distribute | arranged to the fitting completion position Side view showing the process of attaching the cover to the housing Side view of the connector showing a state in which the cover fitting portion is arranged at the retracted position The side view of the connector which shows the state by which the fitting part of the cover was distribute | arranged to the fitting start position The side view of the connector which shows the state by which the fitting part of the cover was distribute | arranged to the fitting completion position Plan view Partially cutaway cross-sectional view corresponding to the cross section taken along line AA in FIG. BB sectional view of FIG.

<Embodiment>
An embodiment of the technology disclosed in this specification will be described with reference to FIGS.
In the present embodiment, a bolted connector (an example of a “connector”) 10 connected to the terminal of the electric wire W is illustrated, and a terminal (not shown) connected to the terminal of the electric wire W and an illustration housed in the counterpart housing H are illustrated. The other terminal that is not connected is connected by tightening the bolt B. In the following description, the vertical direction is based on the vertical direction in FIG. Further, the front-rear direction is described with the right side in FIG. 3 as the front side and the left side in the drawing as the rear side.

The bolted connector 10 includes a terminal, a synthetic resin housing 20 that holds the terminal inside, and a synthetic resin cover 40 that is assembled to the housing 20.
The terminal has an insertion hole through which the bolt B is inserted, and the terminal and the counterpart terminal are connected by inserting the bolt B into the insertion hole and tightening it to the counterpart terminal.

  As shown in FIGS. 1 and 7, the housing 20 is narrow and extends in the front-rear direction. As shown in FIGS. 1 to 6, the housing body 21 and the bolt B are long in the front-rear direction. It is configured to include a bolt receiving portion 22 that is long in the upper and lower sides.

  The housing main body 21 is formed in a substantially cylindrical shape penetrating in the front-rear direction, and by inserting a terminal connected to the electric wire W from the rear of the housing main body 21, the electric wire W is pulled out from the housing main body 21 to the rear. ing. Although not shown in the figure, a rubber plug that is prevented from being removed by holding the rubber plug is assembled inside the rear end portion of the housing main body 21 so as to be externally fitted to the electric wire W. Water or the like is prevented from entering the housing body 21 from the rear end.

  The bolt accommodating portion 22 has a substantially cylindrical shape having an upper end opening (an example of an “opening”) 23 that opens upward, and is formed so as to penetrate in the vertical direction. Moreover, the bolt accommodating part 22 is made into the shape a little longer in the front-back direction than the width direction, and the upper end opening 23 of the bolt accommodating part 22 has a slightly long oval shape in the front-rear direction as shown in FIG. ing. Moreover, the bolt accommodating part 22 is integrally provided in the front end of the housing main body 21, and the inside of the bolt accommodating part 22 and the housing main body 21 are connected in the front-back direction.

  A terminal protruding forward from the housing main body 21 is disposed in the bolt housing portion 22, and the terminal is prevented from being detached in the housing 20 by a terminal locking portion (not shown) provided in the bolt housing portion 22. In this state, the terminal insertion hole is arranged in the bolt accommodating portion 22.

  The upper end opening 23 of the bolt housing part 22 is a work hole for inserting a bolt B into the bolt housing part 22 from above and a tool (not shown) for tightening the bolt B. Therefore, the bolt B is inserted from the upper end opening 23 and inserted into the insertion hole of the terminal, and the bolt B is fastened to the mating terminal by a tool inserted from the upper end opening 23, whereby the terminal and the mating terminal are connected to the bolt housing portion 22. The bolt B is accommodated in the bolt accommodating portion 22.

  The cover 40 includes a fitting portion 41 that can be fitted into the upper end opening 23 of the bolt housing portion 22 in the housing 20, a flat lid portion 42 that covers the upper end opening edge 24 of the bolt housing portion 22 from above, and a lid portion. 42 and a pair of locking pieces (an example of an “engagement portion”) 43 provided on both side edges in the width direction.

  The fitting portion 41 has a shape slightly smaller than the upper end opening 23 of the bolt housing portion 22, and as shown in FIG. 5, the fitting portion 41 is fitted immediately above the upper end opening 23 in front of the upper end opening 23 of the bolt housing portion 22. As shown in FIGS. 8 and 9, the fitting portion 41 is moved downward from the joining start position toward the fitting completion position arranged in the upper end opening 23 of the bolt housing portion 22. Is fitted into the upper end opening 23, and the upper end opening 23 is closed. Further, the fitting portion 41 is detached from the upper end opening 23 by moving the fitting portion 41 upward from the fitting completion position toward the fitting start position.

  Further, as shown in FIGS. 3 to 5, a seal groove 44 fitted with a rubber ring 45 made of an elastic material is provided around the outer peripheral surface of the fitting portion 41, and the fitting portion 41 is opened at the upper end. 8 and FIG. 9, the rubber ring 45 is formed on the inner peripheral surface 22 </ b> B of the bolt housing portion 22 and the inner peripheral surface 44 </ b> A on the back side of the seal groove 44. By closely contacting, the upper end opening 23 is closed while sealing between the inner peripheral surface 22B of the bolt housing portion 22 and the inner peripheral surface 44A of the seal groove 44 in a liquid-tight manner.

  The lid part 42 is connected to the upper end of the fitting part 41 in a form that is slightly larger than the fitting part 41, and the fitting part 41 is at the fitting completion position in the upper end opening 23 of the bolt housing part 22. As a result, the upper end opening edge 24 of the bolt housing part 22 is covered from above.

  The pair of locking pieces 43 are provided in a flat plate shape extending downward from both side edges in the width direction of the lid portion 42, and each locking piece 43 extends from the bolt housing portion 22 with the root of the lid portion 42 as a fulcrum. It is possible to be elastically displaced toward the outside in the width direction, which is the direction of leaving. In addition, a locking hole 46 penetrating in the plate thickness direction is provided at a substantially central portion in the front-rear direction of each locking piece 43. Lock portions 25 respectively provided on both sides in the width direction of the bolt housing portion 22 are fitted into the locking holes 46.

As shown in FIGS. 1 and 9, the lock portion 25 includes a first inclined surface 25A that is inclined outward in the width direction as the surface on the outer side in the width direction is directed downward, and a bolt housing portion from a lower end portion of the first inclined surface 25A. And a locking surface 25 </ b> B provided horizontally so as to face 22.
In the process of moving the fitting part 41 of the cover 40 from the fitting start position to the fitting completion position, the lower end part of the locking piece 43 rides on the first inclined surface 25 </ b> A of the lock part 25. Thus, the locking piece 43 is elastically displaced outward in the width direction. When the fitting portion 41 of the cover 40 reaches the fitting completion position, the lower end portion of the locking piece 43 gets over the locking portion 25, so that the interference between the locking piece 43 and the locking portion 25 is released, and the lock When the portion 25 is fitted into the locking hole 46 of the locking piece 43, the locking piece 43 is elastically restored.

Then, as shown in FIGS. 6 and 9, the engaging surface 25 </ b> B of the lock portion 25 and the lower inner surface 46 </ b> A of the engaging hole 46 in the engaging piece 43 can be engaged in the up and down direction. The cover 40 is fixed to the housing 20 in a state where the portion 41 is disposed at the fitting completion position.
Further, as shown in FIGS. 3 and 7, a second inclined surface 25 </ b> C that is inclined toward the bolt housing portion 22 toward the rear from the rear end edge of the first inclined surface 25 </ b> A is provided at the rear end portion of the lock portion 25. have.

  Now, as shown in FIGS. 2 and 9, a guide recess 47 is provided on the inner surface of the pair of locking pieces 43 of the cover 40. As shown in FIGS. 1 to 6, the side wall 21 </ b> A on both sides in the width direction of the housing body 21 is inserted in the guide recess 47 in the front-rear direction, so that the fitting portion 41 is accommodated by the bolt. A pair of engaging ribs (an example of “engaged portion”) 26 that guides in the front-rear direction is provided between the retracted position retracted rearward from the upper end opening 23 of the portion 22 and the fitting start position.

  As shown in FIGS. 1 and 2, the pair of engaging ribs 26 is provided in a form protruding outward in the width direction at the upper end edge of the side surface 21 </ b> A on both sides in the width direction of the housing body 21, and has a substantially rectangular cross section. There is no. Further, as shown in FIGS. 1 to 6, the pair of engaging ribs 26 has a rib shape extending linearly in the front-rear direction from the rear end of the housing body 21 to the rear end of the bolt housing portion 22. A tapered guide surface 27 is provided at the lower end portion of the rear end of each engagement rib 26 so as to incline upward toward the rear. Therefore, the rear end portion of each engagement rib 26 is tapered toward the rear.

  On the other hand, as shown in FIG. 7 and FIG. 9, the guide recess 47 has a depth in the width direction set to a depth of about half the plate thickness of the locking piece 43. The depth dimension in the width direction is set larger than the projecting dimension of the engagement rib 26 of the housing body 21. Further, as shown in FIG. 9, the guide recess 47 has a substantially rectangular shape when viewed from the front, and as shown in FIGS. 3 to 6, the inner surfaces 48 arranged on both the upper and lower sides of the guide recess 47 include guide recesses. When the engagement rib 26 is inserted into 47, the upper and lower surfaces 26A of the engagement rib 26 are slidable.

  That is, the engagement rib 26 is inserted into the guide recess 47, and the pair of locking pieces 43 are smoothly guided in the front-rear direction in a state of being engaged with the pair of engagement ribs 26 in the vertical direction, thereby being fitted. The cover 40 can be assembled to the housing 20 while allowing the portion 41 to move in the front-rear direction between the initial fitting position and the retracted position. In the process of moving the fitting portion 41 forward from the retracted position toward the fitting initial position, the lower end portions of the pair of locking pieces 43 ride on the second inclined surface 25C of the lock portion 25, thereby causing a pair of engagements. The stop piece 43 is guided on the first inclined surface 25 </ b> A of the lock portion 25.

Further, on the upper surfaces of the housing main body 21 and the bolt housing portion 22, there is a recessed groove portion 28 in which a portion below the seal groove 44 of the fitting portion 41 is fitted so as to be movable in the front-rear direction. It is provided from the bolt housing portion 22 to the housing main body 21.
As shown in FIGS. 1, 2, and 7, the groove 28 extends in the front-rear direction from the rear end of the housing body 21 to the front end of the bolt housing portion 22 (from the retracted position to the fitting start position). The groove edges 29 on both front and rear sides of the groove 28 on the housing main body 21 side are rounded so as to follow the outer surface shape of both front and rear ends of the fitting portion 41.

  When the fitting portion 41 of the cover 40 is slightly shifted from the fitting start position to the front side which is the fitting start position side, the front lower end portion of the fitting portion 41 is the groove edge 29 on the front side of the groove portion 28. By abutting against a certain front groove edge 29A from the rear, the cover 40 can be prevented from moving forward from the fitting start position and falling off the housing 20. Further, when the fitting portion 41 of the cover 40 is slightly shifted from the retracted position to the rear side which is the retracted position side, the rear lower end portion of the fitting portion 41 is the groove edge 29 on the rear side of the groove portion 28. By coming into contact with the rear groove edge 29B from the front, it is possible to prevent the cover 40 from moving backward from the retracted position and falling off the housing 20.

  Further, when the cover 40 is assembled to the housing 20 by fitting the fitting portion 41 into the groove portion 28, the locking piece 43 and the front end portion of the fitting portion 41 are lowered downward as shown in FIG. The rear end portion of the engagement rib 26 is fitted in the guide recess 47 so that the lower inner surface 48A of the guide recess 47 of the locking piece 43 and the guide surface 27 of the engagement rib 26 slide. By doing so, the fitting part 41 can be smoothly fitted into the groove part 28. Thus, for example, the cover 40 can be assembled more smoothly than when the engaging piece is forcibly elastically deformed with respect to the engaging rib and the fitting portion is fitted in the concave groove. It is possible to prevent the locking piece 43 and the engaging rib 26 from being damaged.

  Further, as shown in FIGS. 1 to 5, positioning portions 30 projecting on both sides in the width direction project from the side surfaces 22 </ b> A on both sides in the width direction of the bolt housing portion 22. The positioning part 30 is formed in a substantially rectangular block shape in a side view that is longer in the vertical direction than the front and rear, and in the process of moving the fitting part 41 of the cover 40 from the retracted position to the initial fitting position, The fitting part 41 can be positioned at the fitting initial position by coming into contact with the front end surface 43A of 43 from the front and stopping the locking piece 43 forward.

  Thereby, the fitting part 41 is moved from the retracted position to the fitting initial position, and when the fitting part 41 is fitted into the upper end opening 23 of the bolt housing part 22, the fitting part 41 is moved to the fitting initial position. It can be easily positioned.

The present embodiment is configured as described above. Next, the assembly procedure of the bolt tightening connector 10 will be briefly described, and the operation and effect of the bolt tightening connector 10 will be described.
First, the terminal connected to the terminal of the electric wire W and the housing 20 are prepared, and the terminal connected to the terminal of the electric wire W is inserted from the rear end opening in the housing main body 21 of the housing 20. Then, when the terminal enters the bolt housing portion 22 and the terminal is prevented from being detached by the terminal locking portion of the housing body 21, the bolt insertion hole of the terminal is arranged in the bolt housing portion 22.

  Next, when the terminal is secured in the housing 20, the rubber plug and the rubber plug retainer previously passed through the electric wire W are pulled back, and the rubber plug and the rubber plug retainer are attached to the rear end portion of the housing body 21. To do. This prevents water and the like from entering from the rear end opening of the housing body 21.

Next, the cover 40 with the rubber ring 45 attached to the seal groove 44 of the fitting portion 41 is prepared, and the cover 40 is assembled to the housing 20.
In this assembling process, as shown in FIG. 3, the cover 40 is tilted so that the front end portion of the cover 40 is lowered, and the rear end portion of the engagement rib 26 of the housing body 21 is engaged with the locking piece 43 of the cover 40. Are fitted into the guide recess 47 from the front.

  Then, while the guide surface 27 of each engagement rib 26 and the lower inner surface 48A of the guide recess 47 slide, the locking piece 43 is smoothly guided by the engagement rib 26, and as shown in FIG. The rear end portion of the joint portion 41 is fitted into the groove portion 28 so that the fitting portion 41 is disposed at the retracted position, and the locking piece 43 and the engaging rib 26 are engaged in the vertical direction. Further, when the fitting portion 41 is slightly shifted to the rear side, the rear lower end portion of the fitting portion 41 can come into contact with the rear groove edge 29B of the groove portion 28 from the front, so that the cover 40 is moved from the retracted position. Is also prevented from moving backwards. Thereby, it will be in the state assembled so that cover 40 may not drop from housing 20, and bolt fastening connector 10 will be completed.

Next, a procedure for connecting the terminal of the completed bolt fastening connector 10 and the counterpart terminal accommodated in the counterpart housing H will be described.
In connecting the terminal of the bolt fastening connector 10 and the counterpart terminal accommodated in the counterpart housing H, first, the lower end portion of the bolt accommodating portion 22 is fitted into the counterpart housing H, and the counterpart terminal accommodated in the counterpart housing H is The terminal arranged in the bolt accommodating part 22 is arrange | positioned.

  When the terminal is arranged on the mating terminal, the bolt B and the tool are inserted from the upper end opening 23 of the bolt housing part 22, and the bolt B is tightened to the mating terminal with the tool, so that the terminal and the mating terminal are connected to the bolt housing part 22. Connected within. At this time, since the fitting portion 41 of the cover 40 is disposed at the retracted position retracted from directly above the upper end opening 23 of the bolt housing portion 22, the bolt B or the tool and the cover 40 are not interfered with each other. And a tool can be inserted into the bolt accommodating portion 22 from the upper end opening 23.

Next, when the terminal and the counterpart terminal are connected by the bolt B, the upper end opening 23 of the bolt housing portion 22 is closed by the cover 40.
To close the upper end opening 23 by the cover 40, first, the cover 40 is moved forward by moving the fitting portion 41 from the retracted position to the fitting start position. In the movement process of the cover 40, when the fitting portion 41 moves from the retracted position to the fitting start position, each positioning portion 30 comes into contact with the front end surface 43A of the corresponding locking piece 43 from the front, and the locking piece 43 As shown in FIG. 5, the fitting portion 41 is positioned at the fitting initial position.

  Then, the fitting portion 41 positioned at the initial fitting position is moved downward, and the cover 40 is moved downward, so that the fitting portion 41 opens at the upper end as shown in FIGS. 23 and is arranged at the fitting completion position. Then, the rubber ring 45 of the fitting part 41 seals the space between the inner peripheral surface 22B of the bolt housing part 22 and the fitting part 41, whereby the upper end opening 23 of the bolt housing part 22 is closed by the cover 40. .

  That is, according to this embodiment, when the fitting portion 41 is moved from the retracted position toward the fitting start position, the fitting portion 41 is fitted by bringing the locking piece 43 into contact with the positioning portion 30. Since it can be positioned almost at the initial position, the operation of aligning the fitting portion 41 with the initial position of the fitting can be simplified, and the working efficiency of the fitting operation can be improved.

  As described above, according to the present embodiment, the pair of engaging ribs 26 are formed in the housing main body 21 of the housing 20, and the guide recesses 47 through which the engaging ribs 26 are inserted in the front-rear direction are used as the locking pieces of the cover 40. By being formed in 43, the cover 40 can be assembled to the housing 20 while the fitting portion 41 can be smoothly moved in the front-rear direction between the retracted position and the fitting start position. As a result, it is possible to prevent the cover 40 from being lost or to forget to attach the cover 40 to the housing 20, and the waterproof performance of the bolt-tightened connector 10 can be reduced due to the cover 40 not being attached to the housing 20. It can be prevented from being lost.

  Further, according to the present embodiment, since the fitting portion 41 can be moved to the retreat position retracted from right above the upper end opening 23 of the bolt housing portion 22 in a state where the cover 40 is assembled to the housing 20, for example, Compared with the case where the cover is connected to the housing by a hinge and the cover is held near the fitting start position by the restoring force of the hinge, the cover 40 is obstructed during the tightening operation of the bolt B. Can be prevented.

  In addition, according to the present embodiment, the fitting portion 41 of the cover 40 is held in a state of being fitted to the upper end opening 23 of the bolt housing portion 22 by being vertically engaged with the lock portion 25 of the bolt housing portion 22. Since the guide recess 47 is provided in the locking piece 43 to be engaged and the locking piece 43 and the engaging rib 26 are engaged, for example, the engaging piece that engages with the engaging rib is separated from the locking piece. Compared with the case where it provides, it can prevent that the cover 40 enlarges.

  Further, according to the present embodiment, when the fitting portion 41 is moved from the retracted position to the fitting initial position, the front lower end portion of the fitting portion 41 comes into contact with the front groove edge 29A of the groove portion 28 from the rear side. 40 is prevented from moving forward from the initial fitting position, and when the fitting part 41 is moved from the initial fitting position to the retracted position, the rear lower end of the fitting part 41 is located behind the groove part 28. Since the cover 40 is prevented from moving backward from the retracted position by contacting the side groove edge 29B from the front, when the cover 40 is moved between the retracted position and the initial fitting position, 40 can be prevented from falling off the housing 20 excessively.

<Other embodiments>
The technology disclosed in the present specification is not limited to the embodiments described with reference to the above description and drawings, and includes, for example, the following various aspects.
(1) In the above-described embodiment, one terminal connected to the electric wire W is housed in the housing 20. However, the configuration is not limited thereto, and a plurality of terminals may be accommodated in the housing 20.
(2) In the above-described embodiment, the portion below the seal groove 44 of the fitting portion 41 is fitted into the groove portion 28. However, the present invention is not limited to this, and a configuration may be adopted in which even the rubber ring mounted in the seal groove of the fitting portion is fitted in the concave groove.

(3) In the above embodiment, the cover 40 is held in the retracted position without being temporarily fixed. However, the present invention is not limited to this, and a configuration in which a temporary fixing mechanism for temporarily fixing the cover in the retracted position may be provided between the cover and the housing.
(4) In the said embodiment, it was set as the structure which assembles the terminal connected to the electric wire W in the housing main body 21 of the housing 20 from back. However, the present invention is not limited to this, and the terminal connected to the electric wire W may be molded by the housing.

10: Bolted connector (an example of a “connector”)
20: Housing 23: Upper end opening (an example of “opening”)
25: Lock portion 26: Engaging rib (an example of “engaged portion”)
27: Guide surface 28: Groove part 30: Positioning part 40: Cover 41: Fitting part 43: Locking piece (an example of “engagement part”)
47: Guide recess B: Bolt

Claims (6)

A housing having an opening for tightening a bolt;
There is a fitting portion that can be fitted in a liquid-tight manner in the opening, and the fitting portion is between a fitting start position arranged before the opening and a fitting completion position fitted in the opening. With a cover that can move in the mating and unmating directions,
The housing includes an engaged portion that extends from a retracted position where the fitting portion is retracted in a direction intersecting the fitting and disengaging direction from the front of the opening toward the fitting start position.
The connector includes an engaging portion that engages with the engaged portion while the cover is movable between the fitting start position and the retracted position. The engaged portion is provided in a rib shape extending linearly in the front-rear direction between the retracted position and the fitting start position on the side surfaces on both sides in the width direction of the housing,
A pair of the engaging portions are provided along the side surfaces on both sides in the width direction of the housing,
The engaged portion is provided penetrating in the front-rear direction, and the engaged portion is provided to guide the fitting portion of the cover in the front-rear direction between the retracted position and the fitting start position. The connector according to claim 1, further comprising a guide recess that is inserted in the front-rear direction. The engaging portion is provided so as to be elastically displaceable toward an outer side which is a direction away from the housing.
The engaging portion is in a state of being elastically displaced by interfering with a lock portion protruding from the outer surface of the housing in a process from the fitting start position to the fitting completion position. In a state in which the joint portion reaches the fitting completion position, the interference with the lock portion is released, and the lock portion and the fitting portion are separated from each other so that the fitting portion is held at the fitting completion position. The connector according to claim 2, which can be locked to the connector.   In the housing, the rear end portion of the fitting portion on the retracted position side abuts on the rear side where the fitting portion is opposite to the fitting start position from the retracted position, and the fitting portion is 4. A concave groove portion with which a front end portion on the fitting start position side of the fitting portion abuts on a front side opposite to the retracted position with respect to the fitting start position. Connector described in.   The connector according to claim 4, wherein a tapered guide surface that guides the guide concave portion of the engagement portion is provided at a rear end portion that is the retracted position side of the engaged portion.   The said housing has a positioning part which positions the said fitting part in the said fitting start position when the said engaging part of the said cover contact | abuts. connector.

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