JP2016170998A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the reliability of an unlock function, by preventing the operation unit from being damaged.SOLUTION: A connector includes a housing 10 having a lock arm 23 capable of locking the mating housing 90, and a detection member 60 attached to the housing 10 movably to the initial position and the detection position, and permitted to move to the detection position when both housings 10, 90 are fitted normally. The detection member 60 is provided with a flexible operating portion 64 for pressing the lock arm 23 in the direction for unlocking the lock arm 23 and the mating housing 90. The housing 10 is provided with a stopper 34 which abuts against the operating portion 64 by displacing elastically in the direction opposite to the pressing direction of the lock arm 23 by the operating portion 64, and regulating further elastic displacement of the operating portion 64.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a connector.

  Patent Document 1 includes a female connector housing having a lock arm that can be bent, and a lock arm that holds the mating male connector housing so as to be fitted in the male connector housing, and a female connector housing. On the other hand, the slider (detection member) assembled | attached so that a movement to an advance position and a retreat position is provided. The slider is in a standby state in the forward position while the two connector housings are fitted together, and moves to the backward retracted position when the two connector housings are properly fitted. Therefore, it can be determined that the two connector housings have reached the normal fitting state by moving the slider to the retracted position.

  The slider is provided with a deflectable operation portion that protrudes rearward. When detaching both connector housings, the slider is pushed from the retracted position to the advanced position, and the operating portion is pushed down at the advanced position. Then, the lock arm is bent and deformed in a direction to release the locking with the male connector housing, and thereby both the connector housings can be detached.

Japanese Patent No. 4419885

  By the way, in the said connector, since the operation part of a slider is exposed and arrange | positioned at the upper surface of a connector, for example, when the electric wire bent in the U-shape enters the bending space of the operation part, and the electric wire is pulled up in that state The operation portion is excessively bent and deformed in the opposite direction to the direction in which the lock arm is pressed, and in the worst case, the operation portion may be damaged.

  The present invention has been completed based on the above circumstances, and an object of the present invention is to prevent the operation unit from being damaged and to improve the reliability of the unlocking function.

  The connector of the present invention has a lock arm that can be bent, and the lock arm holds the mating housing so that the mating housing holds the mating housing, and the initial position relative to the housing is detected. And a detection member that is allowed to move from the initial position to the detection position when both housings are properly fitted to each other. The detection member includes the lock arm. A bendable operation portion is provided for releasing the two housings in a fitted state by pressing in a direction to release the locking with the counterpart housing, and the operation portion presses the lock arm in the housing. A stopper is provided to abut against the operating portion when elastically displaced in the direction opposite to the direction, and to restrict further elastic displacement of the operating portion. With a butterfly.

  If the operation unit is elastically displaced in the direction opposite to the direction of pressing the lock arm due to the hooking with the electric wire bent into a U-shape, the operation unit comes into contact with the stopper unit and the elasticity of the operation unit is higher than that. Since the displacement is restricted, it is possible to prevent the operation unit from being damaged. As a result, the reliability of the unlocking function by the operation unit can be improved.

In the Example of this invention, it is a rear view which shows the state which the detection member reached the detection position with respect to the housing. It is a rear view which shows the state by which the operation part was pressed in the process in which the detection member goes to an initial position. It is a principal part enlarged view which shows the positional relationship of the engaging part of an operation part, and the engagement receiving part of a housing when a detection member exists in a detection position. It is a principal part enlarged view which shows the positional relationship of the engaging part of an operation part, and the engagement receiving part of a housing when a detection member exists in an initial position. It is a top view which shows the state by which the detection member was assembled | attached to the initial position with respect to the housing. It is sectional drawing which shows the state by which the detection member was assembled | attached to the initial position with respect to the housing. It is sectional drawing which shows the state by which the lock arm was bent and deformed just before both housings are normally fitted. It is sectional drawing which shows the state which both housings fitted normally and the detection member moved to the detection position. It is sectional drawing which shows the state which the operation part was pressed and the front-end part of the lock arm elastically displaced upwards. It is sectional drawing which shows the state by which the biasing member was assembled | attached to the accommodating part of the detection member. It is a front view of a detection member. It is a top view of a detection member. It is a bottom view of a detection member. It is a side view of a detection member. It is a rear view of a housing. It is a top view of a housing.

Preferred embodiments of the present invention are shown below.
The stopper portion is disposed so as to be able to contact the operation portion in the reverse direction regardless of the position of the detection member from the initial position to the detection position. According to this, it is possible to prevent the operation unit from being damaged regardless of the position of the detection member, and to further improve the reliability of the unlocking function.

  The stopper portion is formed on a guide wall that guides the movement of the detection member. According to this, a stopper part can be provided using the existing housing which has a guide wall.

  The stopper portion is formed continuously on the other inner surface of the guide wall without a step. According to this, it is possible to avoid the structure of the stopper portion from becoming complicated and to maintain the rigidity of the guide wall.

  The detection member is assembled with a biasing member for biasing the detection member from the initial position to the detection position, the operation portion is provided with an engagement portion, and the housing is provided with the biasing member. When the operation member is elastically displaced in the direction of pressing the lock arm in the process of the detection member moving from the detection position to the initial position, the engagement portion slides to elastically displace the operation unit. While maintaining the state, when the detection member is in the detection position and the initial position, or in the process of moving the detection member from the initial position to the detection position, the engagement member is disposed at a position that does not interfere with the engagement portion. A reception unit is provided.

  When removing both housings, it is necessary to push the detection member against the urging force of the urging member and press the operation portion against its elastic reaction force, which may make it difficult to operate. However, according to the above configuration, the elastic displacement state of the operating portion is maintained by the sliding of the engaging portion on the engaging receiving portion of the housing, so that favorable operability can be ensured. Further, when the detection member is at the detection position and the initial position, or in the process of the detection member moving from the initial position to the detection position, the engagement receiving portion is disposed at a position where it does not interfere with the engagement portion. The elastic displacement state of the operation unit is not unnecessarily maintained when the position is at either the position or the detection position, and the movement of the detection member from the initial position to the detection position is not hindered. .

<Example>
Embodiments of the present invention will be described below with reference to the drawings. The connector of the present embodiment includes a housing 10 and a detection member 60 that is assembled to the housing 10 so as to be movable between an initial position and a detection position. The housing 10 can be fitted into the mating housing 90. In the following description, with respect to the front-rear direction, the surfaces facing the housings 10 and 90 at the start of fitting are front sides, and the vertical direction is a view excluding FIGS. 5, 12, 13, and 16. Based on

  The mating housing 90 is made of synthetic resin and has a cylindrical hood portion 91 that protrudes forward as shown in FIGS. 7 and 8. In the hood portion 91, a male tab 95 of a mating terminal fitting is disposed so as to protrude. On the outer surface of the upper wall of the hood portion 91, a lock portion 92 is provided so as to protrude at a position near the front end. The lock portion 92 is similarly provided on the outer surface of the lower wall of the hood portion 91.

  The housing 10 is made of synthetic resin, and has a block-shaped housing body 11 that is long in the front-rear direction and a cylindrical fitting cylinder portion 12 that surrounds the housing body 11 as shown in FIGS. doing. The housing body 11 and the fitting cylinder portion 12 are connected to each other at the rear end portion of the housing body 11. And as shown in FIG. 6, between the housing main body 11 and the fitting cylinder part 12, the fitting space 13 which can fit the other party housing 90 is open | released and formed ahead.

  As shown in FIG. 15, the housing body 11 is provided with a pair of left and right cavities 14. As shown in FIG. 6, a deflectable lance 15 is provided on the lower surface of the inner wall of the cavity 14. A terminal fitting 20 is inserted into the cavity 14 from the rear, and the normally inserted terminal fitting 20 is elastically prevented from coming off by the lance 15.

  As shown in FIG. 6, the terminal fitting 20 is connected to the terminal portion of the electric wire 18 while holding the rubber plug 19. When the terminal fitting 20 is properly inserted into the cavity 14, the rubber plug 19 is elastically adhered to the inner peripheral surface of the cavity 14, and the space between the electric wire 18 and the housing 10 is liquid-tightly sealed. As shown in FIG. 8, when the two housings 10 and 90 are properly fitted, the male tab 95 of the mating terminal fitting is inserted into the terminal fitting 20 from the front, and the both terminal fittings are electrically connected.

  As shown in FIG. 6, the front end portion of the housing main body 11 is disposed so as to protrude forward from the front end of the fitting tube portion 12, and the front member 17 is externally fitted thereto from the front. The front member 17 has a front wall 16 that covers the front surface of the housing body 11 while leaving the opening of the cavity 14. The front wall 16 is disposed at a position covering the front of the lance 15.

  As shown in FIG. 6, a seal ring 21 is attached to the outer peripheral surface of the housing body 11. The seal ring 21 is disposed between the step 22 formed on the outer peripheral surface of the housing main body 11 and the rear end of the front member 17 in a state where displacement in the front-rear direction is restricted. When the two housings 10 and 90 are properly fitted, the seal ring 21 is elastically brought into close contact with the inner peripheral surface of the hood portion 91 and the outer peripheral surface of the housing body 11, and the housings 10 and 90 are liquid-tightly sealed. The

  As shown in FIGS. 6 and 15, a lock arm 23 is provided on the upper surface of the housing body 11. The lock arm 23 can be bent and deformed in a seesaw shape in the vertical direction with the leg portion 24 rising from the upper surface of the housing body 11 as a fulcrum. The lock arm 23 is provided with a lock hole 25 penetrating in the vertical direction. As shown in FIG. 8, when both housings 10 and 90 are properly fitted, the lock portion 92 of the mating housing 90 is elastically fitted into the lock hole 25, and the lock portion 92 can be locked to the front end of the lock hole 25. The two housings 10 and 90 are held in a state where they are restricted from being disposed. The lock arm 23 is provided with a movement restricting portion 26 that faces the lock hole 25 from a lower position near the leg portion 24. The movement restricting portion 26 plays a role of restricting movement of the detection member 60 to the rear (detection position) by abutting with a later-described locking portion 75 of the detection member 60.

  A press receiving portion 27 is provided at the rear end portion of the lock arm 23. The press receiving portion 27 is pressed by an operation portion 64 described later of the detection member 60 and is arranged so as to cover the rear end portion of the lock hole 25.

  As shown in FIG. 15, a pair of guide walls 28 that cover the sides of the lock arm 23 are provided on the upper portion of the fitting cylinder portion 12. As shown in FIG. 16, both guide walls 28 are configured to extend long in the front-rear direction. The upper edges of the front end portions of both guide walls 28 are connected by a top wall 29 that covers the front end portion of the lock arm 23 from above.

  As shown in FIG. 6, the rear end portion of the guide wall 28 is disposed so as to protrude rearward from the rear end of the lock arm 23 and the rear end of the housing body 11. As shown in FIGS. 15 and 16, the lower edges of the rear ends of the guide walls 28 are connected to each other by a receiving wall 31 that protrudes rearward from the upper end of the housing body 11. In a space defined by both the guide walls 28, the top plate wall 29 and the receiving wall 31, an assembly space 30 for the detection member 60 is formed so as to surround the lock arm 23. As shown in FIG. 10, claw-shaped retaining projections 32 are provided on the left and right sides of the upper surface of the receiving wall 31. The detection member 60 assembled in the assembly space 30 is locked to the retaining protrusion 32 so that the backward withdrawal is restricted.

  As shown in FIG. 15, the rear end portions of both guide walls 28 are configured as inclined wall portions 33 that are inclined inward so as to gradually narrow the mutual separation width toward the upper end when viewed from the rear. . The inner surfaces of both inclined wall portions 33 are arranged in a tapered manner inwardly with no step except for an engagement receiving portion 35 described later. And the stopper part 34 which can contact the engaging part 73 mentioned later of the detection member 60 in the form which follows the other inner surface is provided in the inner surface of the upper end part of both the inclined wall parts 33. As shown in FIG. That is, the stopper part 34 is not formed on the inner surfaces of the two inclined wall parts 33 so as to project or be recessed, and is not formed by performing special processing. And the stopper part 34 is continuously arrange | positioned in the front-back direction on the inner surface of the upper end part of both the inclined wall parts 33. As shown in FIG.

  As shown in FIG. 15, on the inner surfaces of both inclined wall portions 33, an engagement receiving portion 35 is provided so as to protrude below the stopper portion 34. The engagement receiving portion 35 has a rib shape along the front-rear direction, and the inner surface thereof is disposed so as to be inclined substantially parallel to the inclined surface. An engagement portion 73 of the detection member 60 is slidable on the inner surface of the engagement receiving portion 35. Further, as shown in FIGS. 3 and 4, the engagement receiving portion 35 has a rectangular shape in a side view, and a path through which the engagement portion 73 passes when the detection member 60 moves is secured on the front, rear, and upper sides thereof. Has been.

  The detection member 60 is made of synthetic resin, and as shown in FIGS. 11 to 14, a base portion 61 along the left-right direction, a pair of side portions 62 projecting forward from both left and right end portions of the base portion 61, and a base portion 61. A locking arm 63 projecting forward from the left and right central portions of the two and an operation portion 64 installed at the rear end portions of the side portions 62 are provided.

  A substantially cylindrical accommodating portion 65 is provided in a substantially lower half portion of the both side portions 62 along the front mating direction. As shown in FIG. 10, an energizing member 70 made of a spring material such as a compression coil spring is accommodated in the accommodating portion 65 along the front-rear direction. The urging member 70 is fitted with a cap 71 forward in the state of being accommodated in the accommodating portion 65, and the cap 71 is pressed into contact with the hood portion 91 of the mating housing 90 during the fitting process of both the housings 10 and 90.

  As shown in FIGS. 10 and 11, a claw-like to-be-prevented portion 66 is provided protruding from the lower end portion of the accommodating portion 65. As the to-be-removed portion 66 is locked to the retaining protrusion 32, the detection member 60 at the detection position is prevented from coming out of the housing 10. As shown in FIGS. 11 and 14, a standing wall portion 67 that stands from the upper end of the accommodating portion 65 is provided in a substantially upper half portion of the both side portions 62. Both standing wall portions 67 are displaceable while being guided along the inner surface of the guide wall 28 when the detection member 60 is moved. As shown in FIG. 12, auxiliary projections 68 are provided at the front end portions of the both standing wall portions 67 so as to protrude inward. The auxiliary protrusions 68 are elastically locked to protrusion receiving portions 36 (see FIG. 15) provided on both side edges of the lock arm 23, so that the detection member 60 and the detection member 60 come out of the housing 10 together. Play a role in regulating

  As shown in FIGS. 11 and 12, the operation unit 64 has an operation main body 69 having a predetermined width in the left-right direction and arranged substantially along the front-rear direction in the natural state, and both side surfaces of the operation main body 69. It has a pair of connection parts 72 along the left-right direction which connects a front-end part and the upper end edge of both the standing wall parts 67. As shown in FIG. The operation main body 69 is elastically displaceable (possible to swing and displace) in the vertical direction with both connecting portions 72 as fulcrums. And the operation main-body part 69 is arrange | positioned so that the press receiving part 27 of the lock arm 23 may be covered (refer FIGS. 6-9), and after the normal fitting of both the housings 10 and 90, the detection member 60 will be in an initial position. As the operation main body 69 is pressed from above, the pressure receiving portion 27 is pushed down via the operation main body 69, and accordingly, the front end of the lock arm 23 is displaced upward, The engagement with the lock portion 92 of the counterpart housing 90 is released.

  As shown in FIGS. 12 and 14, the rear portion 69R of the operation main body 69 is wider in the left-right direction than the front portion 69F and thicker in the vertical direction than the front portion 69F. Further, as shown in FIG. 14, the lower surface of the rear portion 69R of the operation main body 69 is disposed so as to be gently inclined with a downward slope from the lower surface of the front portion 69F toward the rear. As shown in FIG. 12, a pair of engaging portions 73 project from the both side surfaces of the rear portion 69R of the operation main body 69. Since both side surfaces of the rear portion 69R of the operation main body 69 are disposed at substantially the same position as the outer surfaces of the both standing wall portions 67 in the width direction (left-right direction) (see FIG. 12), both the engaging portions 73 are viewed from the front. When viewed, the two standing wall portions 67 are arranged so as to protrude outward from the outer surface (see FIG. 11).

  Further, as shown in FIG. 11, both engaging portions 73 are formed in a substantially triangular shape in front view so that the amount of protrusion gradually increases toward the lower end. The outer surfaces of both engaging portions 73 are inclined upward with substantially the same inclination angle as the inner surface of the engagement receiving portion 35 (see FIG. 2). As shown in FIG. 14, the engaging portion 73 is provided at the lower rear end of the rear portion 69 </ b> R of the operation main body portion 69.

  As shown in FIGS. 12 and 13, the locking arm 63 is formed in a rectangular bar shape that is elongated in the front-rear direction as a whole, and can be bent and deformed in the vertical direction with a connection portion with the base 61 as a fulcrum. As shown in FIG. 6, a protruding piece 74 is provided at the upper end of the front end of the locking arm 63 so as to protrude forward. When the detection member 60 is in the initial position, the projecting piece 74 rides on the front end of the lock arm 23, so that the downward movement of the locking arm 63 is restricted.

  Further, as shown in FIGS. 6 and 13, a locking portion 75 protrudes from the lower surface of the front end portion of the locking arm 63. As shown in FIG. 6, the rear end surface of the locking portion 75 is arranged along the vertical direction and can be locked facing the movement restricting portion 26. In addition, the front surface of the locking portion 75 is arranged to be inclined downward toward the rear, and is slidable with the lock portion 92 of the mating housing 90 during the fitting process of both housings 10 and 90.

Next, the operation of the connector of this embodiment will be described.
When assembled, the detection member 60 is assembled into the assembly space 30 of the housing 10 from the rear. As shown in FIG. 6, when the detection member 60 is assembled at the standby position, the front end portion of the locking arm 63 is elastically fitted into the lock hole 25 of the lock arm 23 together with the locking portion 75. Since the front end is arranged to be able to be locked to the front end of the lock hole 25, further advancement of the detection member 60 is restricted, and the rear surface of the locking part 75 is arranged to be locked to the movement restricting part 26. Thus, the backward movement of the detection member 60 is restricted. At this time, as shown in FIG. 10, the urging member 70 is arranged to extend substantially in the natural state in the accommodating portion 65. When the detection member 60 is in the standby position, the operation main body 69 of the operation unit 64 is disposed above the rear end of the lock arm 23, and as shown in FIG. 73 is disposed on the front upper side of the engagement receiving portion 35 of the housing 10 without interfering with the engagement receiving portion 35.

  Further, when the detection member 60 is in the standby position, as shown in FIG. 1, the outer surface of the engaging portion 73 is arranged to face the inner surface of the stopper portion 34 substantially in parallel from below while leaving a slight gap. The That is, the engaging part 73 is disposed at a position where it can interfere with the stopper part 34 in the upward displacement direction while wrapping with the stopper part 34 in the vertical direction. For this reason, even if the operation portion 64 is about to be elastically displaced upward, the outer surface of the engaging portion 73 abuts against the stopper portion 34 so that further elastic displacement of the engaging portion 73 is restricted.

  Subsequently, the housing 10 is fitted into the mating housing 90. In the fitting process of both housings 10 and 90, as shown in FIG. 7, the lock portion 92 slides on the lower surface of the front end portion of the lock arm 23, and the lock arm 23 is bent upward and deformed. At this time, the front end portion of the locking arm 63 and the locking portion 75 are kept in the lock hole 25, so that the locking arm 63 is also bent and deformed together with the lock arm 23. Further, in the process of fitting the two housings 10 and 90, the urging member 70 is pushed into the hood portion 91 and is elastically contracted, and the urging force is accumulated in the urging member 70.

  When the two housings 10 and 90 are properly fitted, as shown in FIG. 8, the lock portion 92 enters the lock hole 25 from below, the lock arm 23 is elastically restored, and the two housings 10 and 90 are restricted from being detached. It is held in the state. Further, as the lock portion 92 enters the lock hole 25 from below, the lock portion 75 is pushed out by the lock portion 92 and the lock between the lock portion 75 and the movement restricting portion 26 is released. Accordingly, the detection member 60 can be moved rearward (detection position), and at the same time, the urging force of the urging member 70 is released, and the detection member 60 is urged and moved toward the detection position.

  In the process in which the detection member 60 moves to the detection position, the engagement portion 73 of the operation portion 64 interferes with the engagement reception portion 35 through a path (see arrow A in FIG. 4) along the upper end of the engagement reception portion 35. Pass without. Further, even in the process in which the detection member 60 moves to the detection position, the state in which the outer surface of the engaging portion 73 is disposed so as to be able to contact the inner surface of the stopper portion 34 from below is maintained.

  When the detection member 60 reaches the detection position, the to-be-removed portion 66 is disposed so as to be able to be engaged with the retention protrusion 32, and the auxiliary protrusion 68 is disposed so as to be able to be engaged with the protrusion receiving portion 36. Further recession is regulated. Further, at the detection position, the engaging portion 73 reaches the rear upper side of the engaging receiving portion 35 (see FIG. 3), and the outer surface of the engaging portion 73 can contact the inner surface of the stopper portion 34 from below. Still maintained.

  On the other hand, if the fitting operation is stopped halfway before the two housings 10 and 90 are normally fitted, the urging force of the urging member 70 accumulated so far is released, and both the housings 10 and 10 are released. , 90 are moved away from each other. Therefore, the situation where both the housings 10 and 90 are left in the half-fitted state is avoided.

  Further, when the housings 10 and 90 are detached, the upper surface of the operation main body 69 of the operation unit 64 is pressed by an operator's finger or the like, and the detection member 60 is applied to the urging force of the urging member 70 in this state. It is pushed toward the front (initial position) while resisting (see FIG. 9). Then, the operation main body 69 of the operation unit 64 is pushed down and deformed, and as shown in FIG. 2, the outer surface of the engagement unit 73 faces the inner surface of the engagement receiving unit 35 and can be contacted. Is done.

  In the above case, while the detection member 60 moves toward the initial position, the outer surface of the engagement portion 73 slides on the inner surface of the engagement receiving portion 35, so that the elastic reaction force of the operation portion 64 is received by the engagement. It is received by the portion 35 and the elastic return of the operation portion 64 is restricted. That is, the elastic displacement state of the operation unit 64 is maintained. Immediately before the detection member 60 reaches the initial position, the pressure receiving portion 27 of the lock arm 23 is pushed down by the operation portion 64 in an elastically displaced state, and accordingly, the front end portion of the lock arm 23 is displaced upward. When the front end portion of the lock arm 23 is displaced upward, the lock portion 92 comes out of the lock hole 25, and the front end portion of the locking arm 63 of the detection member 60 that has reached the initial position in place of the lock portion 92 together with the locking portion 75. Fit into the lock hole 25. Further, at the same time when the lock portion 92 comes out of the lock hole 25, the urging force of the urging member 70 is released, and the two housings 10, 90 are separated from each other.

  By the way, when the detection member 60 is in the initial position or the detection position, when the electric wire 18 or the like bent in a U shape enters the lower part (flexible space) of the operation part 64 and the electric wire 18 or the like is pulled upward, the operation part 64 also follows the electric wire 18 and is pulled upward (opposite to the direction in which the lock arm 23 is pressed), and the operation unit 64 may be damaged beyond the elastic limit.

  However, according to the present embodiment, as described above, the engaging portion 73 of the operation portion 64 can be connected to the stopper portion 34 of the housing 10 from below regardless of the position of the detection member 60 from the initial position to the detection position. Since the operation portion 64 is elastically displaced upward, it is brought into contact with the stopper portion 34 as soon as the operation portion 64 is elastically displaced upward, and further elastic displacement is restricted, and the operation portion 64 is not damaged. . As a result, the reliability of the unlocking operation by the operation unit 64 of the detection member 60 is improved. In this case, since the stopper portion 34 is formed on the guide wall 28 that guides the movement of the detection member 60, the stopper portion 34 can be provided without greatly changing the structure of the existing housing 10. In particular, since the stopper portion 34 is continuously formed on the other inner surface of the guide wall 28 (inclined wall portion 33) without any step, the stopper portion 34 does not have a complicated shape, and the rigidity of the guide wall 28 is reduced. Can also be kept.

  Further, when the two housings 10 and 90 are detached, the detection member 60 must be pushed against the urging force of the urging member 70 and the operation portion 64 should not be pushed against the elastic reaction force. However, in this embodiment, the elastic surface of the operating portion 64 is maintained by sliding the outer surface of the engaging portion 73 on the inner surface of the engaging receiving portion 35. Thus, good operability can be ensured when both housings 10 and 90 are detached.

  Further, when the detection member 60 is at the detection position and the initial position, or when the detection member 60 moves from the initial position to the detection position, the engagement receiving portion 35 is disposed at a position where it does not interfere with the engagement portion 73. Therefore, the elastic displacement state of the operation unit 64 is not unnecessarily maintained when the detection member 60 is at either the detection position or the initial position, and the detection member 60 is moved from the initial position to the detection position. There is no hindrance to movement.

<Other embodiments>
Other embodiments will be briefly described below.
(1) The detection member may be moved manually between the initial position and the detection position without being biased by the biasing member.
(2) The operating portion of the detection member is not provided with an engaging portion, and is arranged so that the stopper portion covers the upper surface of the operating portion, thereby restricting the elastic displacement upward of the operating portion. It may be a thing. In this case, the stopper portion may be bent inward from the upper end of the guide wall to cover the upper surface of the operation portion.
(3) A portion other than the engaging portion (a portion that can come into contact with the stopper portion) may slide on the engagement receiving portion of the housing to maintain the elastic displacement state of the operation portion.

DESCRIPTION OF SYMBOLS 10 ... Housing 23 ... Lock arm 28 ... Guide wall 33 ... Inclined wall part 34 ... Stopper part 35 ... Engagement receiving part 60 ... Detection member 64 ... Operation part 70 ... Energizing member 73 ... Engagement part 90 ... Counterpart housing

Claims (5)

A housing having a lock arm that can be deflected, and the lock arm is held in a fitted state in the mating housing by locking the mating housing;
A detection member that is movably assembled to an initial position and a detection position with respect to the housing, and is allowed to move from the initial position to the detection position when both housings are properly fitted;
The detection member is provided with a bendable operation part that presses the lock arm in a direction to release the locking with the mating housing to release the two housings in the fitted state.
The housing is provided with a stopper portion that abuts on the operation portion when the operation portion is elastically displaced in a direction opposite to the direction in which the lock arm is pressed and restricts further elastic displacement of the operation portion. Connector characterized by being.   2. The stopper portion is disposed so as to be able to contact the operation portion in the opposite direction regardless of the position of the detection member from the initial position to the detection position. The connector described.   The connector according to claim 1, wherein the stopper portion is formed on a guide wall that guides the movement of the detection member.   The connector according to claim 3, wherein the stopper portion is continuously formed on the other inner surface of the guide wall without a step. The detection member is assembled with a biasing member that biases the movement of the detection member from the initial position to the detection position.
The operation part is provided with an engaging part,
When the operation member is elastically displaced in a direction in which the detection member moves from the detection position to the initial position in the process of pressing the lock arm, the engagement portion slides on the housing, and the operation is performed. While the detection member is in the detection position and the initial position, or in the process of the detection member moving from the initial position to the detection position, the elastic displacement state of the portion is maintained. The connector according to any one of claims 1 to 4, wherein an engagement receiving portion is provided.

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