JP6142836B2 - connector - Google Patents

Description

  The present invention relates to a connector.

  Conventionally, as a lock mechanism that holds a pair of housings in a fitted state, a lock arm that can be bent is provided in one housing. There is known a structure in which the provided locking portion is locked to a lock portion provided in the other housing. In this lock mechanism, when the pair of housings locked in the fitted state are detached, the lock arm is bent to release the lock between the lock portion and the lock portion.

  A connector having a lock mechanism of this type is known to have a configuration that restricts the bending of the lock arm when the connector is fitted in order to improve the lock holding force. For example, the connector described in Patent Document 1 includes a spring holder that is movable to a position that restricts the bending of the lock arm and a position that allows the bending of the lock arm. The spring holder is held at a position that allows the lock arm to bend when the pair of connector housings are fitted, and after the pair of connector housings are fitted, the spring holder is placed at a position that restricts the bending of the lock arm. Retained. Thereby, a pair of connector housing is hold | maintained in a fitting state reliably.

Japanese Patent No. 3303782

  However, in the connector configured as described above, there is a gap between the lock arm and the slider. Therefore, when the mated connector housing is pulled in the disengagement direction, the lock arm is slightly bent in the gap. There is a possibility. When the lock arm bends, the engagement margin between the locking portion and the lock portion is reduced. Therefore, a countermeasure has been desired so that the lock is not released in the fitted state.

  This invention is completed based on the above situations, Comprising: It aims at providing the connector which can hold | maintain a pair of housing in a fitting state reliably.

In the connector of the present invention, the lock arm provided in one of the pair of housings that can be fitted to each other bends, so that the locking portion provided in the lock arm and the lock provided in the other housing. And the pair of housings are held in a fitted state, and the lock arm is bent, so that the engagement between the engagement part and the lock part is released and the pair of housings can be detached. A lock mechanism that is assembled to any one of the pair of housings, and a slider that is movable to a position that restricts the bending of the lock arm and a position that allows the bending of the lock arm; and a gap filling unit for filling the deflection direction parallel to the direction of the gap of the locking arm between the said locking arm and said slider, said slider It is assumed that the housing is assembled from the rear, and the slider and the housing are provided with a separation preventing structure that prevents the slider from separating backward from the housing by being locked in the front-rear direction. The backpacking portion is provided on a side of the separation preventing structure .

According to the present invention, it is possible to prevent the lock arm from being bent in the gap between the slider and the lock arm, so that the pair of housings can be reliably held in the fitted state. In addition, for example, when the backpacking portion is provided in front of or behind the separation preventing structure, the slider may float by the backpacking portion, and as a result, the separation prevention structure may be unlocked and detached. . However, since the backpacking portion is provided on the side of the separation preventing structure, such a situation can be prevented.

The top view showing the connector in a present Example, and the state before fitting of a pair of housings It is sectional drawing showing the state before fitting of a pair of housings, Comprising: Sectional drawing corresponded in the cross section in the AA position of FIG. FIG. 3 is a cross-sectional view showing the first housing in a state where the slider is assembled, and is a cross-sectional view corresponding to a cross section at the BB position in FIG. 1. FIG. 2 is a cross-sectional view showing a first housing in a state where a slider is assembled, and is a cross-sectional view corresponding to a cross section at a CC position in FIG. 1. The rear view showing the 1st housing in the state where the slider was assembled. Plan view showing the first housing Front view showing the first housing Plan view showing slider Side view showing slider Front view showing slider Sectional drawing which shows a state before the slider movement after a pair of housing fitting, and the spring member compressed Sectional drawing which shows a state before the slider movement after a pair of housing fitting, and the movement stopper part removed from the movement prevention part The top view showing the state after the slider movement after fitting of a pair of housings FIG. 14 is a cross-sectional view illustrating a state after the slider is moved after the pair of housings are fitted, and is a cross-sectional view corresponding to a cross section at the DD position in FIG. 13. FIG. 14 is a cross-sectional view showing a state after the slider is moved after the pair of housings are fitted, and is a cross-sectional view corresponding to a cross section at the position EE in FIG. FIG. 14 is a cross-sectional view illustrating a state after the slider is moved after the pair of housings are fitted, and is a cross-sectional view corresponding to a cross section at the position FF in FIG. 13.

  In the connector according to the present invention, the backpacking portion may be provided in a portion of the housing that is positioned forward in the assembly direction of the slider. According to such a configuration, when the slider is assembled to the housing, the slider only comes into contact with the padding portion at the end stage. For example, when the slider continues to contact the padding portion throughout the assembly work. In comparison, it is possible to prevent the slider assembling work from becoming difficult.

  Moreover, the connector of this invention is good also as what the said padding part is provided in the vicinity of the position where the said latching | locking part and the said locking part latch. According to such a configuration, the gap in the direction parallel to the bending direction of the lock arm is filled in the vicinity of the position where the locking portion and the locking portion are locked. Can be held.

<Example>
Hereinafter, an embodiment embodying the present invention will be described in detail with reference to FIGS.
The connector C in this embodiment has a pair of housings 20 and 60 that can be fitted to each other, and the pair of housings 20 and 60 is provided with a lock mechanism that locks both the housings 20 and 60 in a fitted state. ing. Hereinafter, in each component member, the fitting surface side in both housings 20 and 60 will be described as the front side, and the upper side in FIG.

  The lock mechanism in the present embodiment is provided on the lock arm 21 by bending the lock arm 21 provided on one of the pair of housings 20 and 60 (hereinafter referred to as the first housing 20). The locking portion 22 and the lock portion 61 provided in the other housing (hereinafter referred to as the second housing 60) are locked to hold the pair of housings 20 and 60 in a fitted state, and the lock arm 21 is By bending, the engagement between the engagement portion 22 and the lock portion 61 is released, and the pair of housings 20 and 60 can be detached.

  The first housing 20 is made of synthetic resin, and has a block-shaped housing main body portion 23 in which the terminal fitting 27 is accommodated, and a tubular portion 24 that forms a tubular shape surrounding the housing main body portion 23. have. A fitting space 25 in which the hood portion 62 of the second housing 60 can be fitted is formed between the housing main body portion 23 and the cylindrical portion 24 so as to open forward.

  A plurality of chambers (two chambers in this embodiment) are arranged side by side in the housing body 23 so that the terminal fittings 27 can be inserted from behind (see FIG. 5). The terminal fitting 27 is crimped to a conductor portion of the electric wire W and a rubber plug 28 fitted to the electric wire W. When the terminal fittings 27 are properly inserted into the cavities 26, the lances 29 (see FIGS. 5 and 7) provided in the cavities 26 are locked to the terminal fittings 27 to prevent the cavities from coming off. The inside of the cavity 26 is liquid-tightly sealed by a rubber plug 28 fitted in the rear end portion of the H.26.

  A seal ring 31 is fitted on the outer peripheral surface of the housing body 23. The seal ring 31 is elastically compressed between the hood portion 62 inserted into the fitting space 25 and the housing main body portion 23 when the two housings 20 and 60 are fitted, whereby the housings 20 and 60 are liquidated. Sealed tightly. Note that the seal ring 31 is restricted from being pulled forward by the front member 32 placed on the front portion of the housing main body 23.

  A lock arm 21 is provided on the outer peripheral surface of the housing body 23. As shown in FIG. 3, the lock arm 21 is provided on the upper surface side of the housing main body 23. As shown in FIG. And an arm main body 34 extending to the front. The lock arm 21 is configured such that the arm body 34 can be bent in the vertical direction with the leg 33 as a fulcrum.

  At the front end portion of the arm main body portion 34, a locking portion 22 is formed protruding downward. Further, the rear end portion of the arm main body portion 34 (the portion on the rear side of the leg portion 33) is a release operation portion 35 that is pressed downward when releasing the lock. By pressing the release operation portion 35 downward, a portion of the arm main body portion 34 on the front side of the leg portion 33 (hereinafter referred to as a displacement portion 36) is displaced upward, and the locking portion 22 is locked. The locking between the locking portion 22 and the locking portion 61 is released at a position higher than the locking position.

  The upper surface of the first housing 20 is moved to a position where the bending of the lock arm 21 is restricted (hereinafter referred to as a bending restriction position) and a position where the bending of the lock arm 21 is allowed (hereinafter referred to as an allowable bending position). The possible slider 50 is assembled. As shown in FIG. 1, the slider 50 is positioned at the front end (bending allowable position) as shown in FIG. 1, and the position at the rear end (deflection limiting position) as shown in FIG. 13. Slide between the front and rear. The slider 50 will be described later.

  On the upper surface of the first housing 20, as shown in FIG. 14, a separation preventing portion (detachment preventing structure) 37 is provided to prevent the slider 50 disposed at the bending restriction position from separating backward. The detachment preventing portion 37 protrudes from the upper surface of the lock arm 21. The separation preventing portion 37 has a wall shape whose dimension in the left-right direction is larger than the dimension in the front-rear direction, and is located at the approximate center in the width direction of the first housing 20 (lock arm 21) (see FIG. 13).

  Further, the detachment preventing portion 37 is provided at a position near the front end of the lock arm 21, and is disposed immediately above the lock portion 61 of the second housing 60 in the fitted state of both the housings 20, 60. As shown in FIG. 14, when the separation stopper portion (detachment prevention structure) 55 of the slider 50 contacts the front surface of the separation prevention portion 37, the backward movement (detachment) of the slider 50 is limited.

  At both ends in the left-right direction of the separation preventing portion 37, there are stopper guide portions 38 that guide the climbing operation so that the separation stopper portion 55 smoothly gets over the separation preventing portion 37 when the slider 50 is assembled to the first housing 20. A pair is provided. The pair of stopper guide portions 38 are connected to the left and right sides of the separation preventing portion 37. The rear surface of each stopper guide portion 38 is a guide surface 39 that has an inclination in which the height dimension gradually increases from the rear end toward the front. Note that the front end of the stopper guide portion 38 has a height dimension equivalent to that of the separation preventing portion 37.

  On the upper surface of the first housing 20 (the upper surface of the lock arm 21), there is a gap in the vertical direction (a direction parallel to the bending direction of the lock arm 21) between the slider 50 and the lock arm 21 assembled to the first housing 20. A padding portion 46 is provided to fill the space. The backpacking portion 46 will be described in detail later.

  As shown in FIG. 14, the leg portion 33 of the lock arm 21 is formed with a through-hole 41 through which a movement stopper portion 56 of a slider 50 described later can pass forward. The through hole 41 is formed at the center in the width direction of the leg portion 33. On the front end side of the through hole 41, as shown in FIG. 2, there is provided a movement preventing part 42 for preventing the slider 50 arranged at the bending allowable position from moving backward. When the claw portion 57 provided at the front end of the movement stopper portion 56 is engaged with the movement preventing portion 42 from the front, the movement of the slider 50 in the rear is restricted.

A portion of the cylindrical portion 24 corresponding to the lock arm 21 is open, and the upper surface of the lock arm 21 is exposed to the outside of the cylindrical portion 24 as shown in FIG.
The cylindrical portion 24 is provided with a guide wall 43 that guides the movement of the slider 50 in the front-rear direction. The guide wall 43 has a shape along both outer side surfaces of the slider 50, and a pair is provided on both the left and right sides of the cylindrical portion 24 (see FIG. 5). A space between the pair of guide walls 43 is a guide space 44 in which the slider 50 is movable in the front-rear direction.

  The upper part of the guide wall 43 (hereinafter referred to as the first guide part 43F) is raised substantially vertically at a position slightly away from the lock arm 21. Further, the lower portion of the guide wall 43 (hereinafter referred to as the second guide portion 43S) has an arc shape along the outer shape of the spring accommodating portion 59 of the slider 50. As shown in FIG. 2, the second guide portion 43 </ b> S extends rearward from the housing main body portion 23.

  As shown in FIG. 1, the front end portion of the guide space 44 is provided with a front stop portion 45 that comes into contact with the front surface of the slider 50 disposed at the bending allowable position and stops. The front stopper 45 is configured to connect the front ends of the pair of guide walls 43 (the front end of the first guide portion 43F) in the left-right direction.

  The second housing 60 is also made of synthetic resin, and has a cylindrical hood portion 62 that can be externally fitted to the housing main body portion 23 of the first housing 20. As shown in FIG. A type terminal fitting (tab 63) is arranged to protrude.

  The second housing 60 is provided with a lock portion 61 that can lock the locking portion 22 of the lock arm 21 provided in the first housing 20. The lock part 61 protrudes from the outer peripheral surface of the hood part 62.

  A pair of guide protrusions 65 are formed on the outer peripheral surface of the hood portion 62 so as to extend in the front-rear direction on both sides in the width direction across the lock portion 61. The guide protrusion 65 is inserted into both sides of the locking portion 22 when the housings 20 and 60 are fitted. In addition, a pair of side guide protrusions 64 are formed on the outer peripheral surface of the hood portion 62 so as to extend in the front-rear direction on both sides in the width direction. The side guide protrusions 64 are inserted into guide grooves 24M shown in FIG. 7 formed on the inner peripheral surface of the cylindrical portion 24.

  The slider 50 is made of a synthetic resin, and as shown in FIG. 8, a slider main body 51 having an opening 52 that exposes a part of the lock arm 21 upward, and a spring accommodating portion 59 in which a spring member 58 is accommodated. And have.

  The slider body 51 has a rectangular shape that is long in the front-rear direction in plan view (see FIG. 8). The opening 52 is open in the vertical direction at a substantially first half of the slider body 51. The opening 52 has a rectangular shape that is slightly longer in the front-rear direction as a whole. A front edge portion (front end portion of the slider main body portion 51) of the peripheral edge portion of the opening portion 52 is a detachment stopper portion 55 that can be locked from the front with respect to the detachment prevention portion 37 of the first housing 20.

  Further, the slider body 51 is provided with a portion (hereinafter referred to as a riding portion 53) that rides on a padding portion 46 described later provided on the upper surface of the first housing 20. The riding portion 53 is provided with a pair at both corners of the front end of the opening 52. As shown in FIG. 8, the pair of riding-up parts 53 are located on both the left and right sides of the separation stopper part 55. The ride-up portion 53 has an angular shape and projects beyond the separation stopper portion 55.

  As shown in FIG. 2, the slider main body 51 moves to hold the slider 50 in the bending allowable position and limit the movement to the bending limiting position until the fitting operation of both the housings 20 and 60 is completed. A stopper portion 56 is provided. The movement stopper portion 56 has a form that cantilevered forward from the central portion in the width direction of the slider main body portion 51, and can be elastically bent and deformed in the vertical direction (see FIG. 12). At the front end of the movement stopper portion 56, a claw portion 57 protrudes downward, and the claw portion 57 is hooked and locked to the movement prevention portion 42 when the slider 50 is in the bending allowable position.

  Further, the movement stopper portion 56 has a shape that allows a pressing operation (displacement downward) of the release operation portion 35 of the lock arm 21 when the slider 50 is in the bending allowable position (see FIG. 2). And the movement stopper part 56 shall restrict | limit the pressing operation of the release operation part 35 of the lock arm 21 when the slider 50 exists in a bending | flexion restriction | limiting position (refer FIG. 14).

  At the rear end portion of the slider main body 51, a push operation portion 54 that is pushed forward when the slider 50 is assembled to the first housing 20 is provided. The push-in operation unit 54 is provided on the upper surface of the slider main body 51 and has a shape that rises stepwise from the rear end toward the front. When the pushing operation unit 54 is pressed forward, the slider 50 is moved toward the normal assembly position (deflection allowable position).

  When the slider 50 is in the bending allowable position, the push operation unit 54 is positioned above the release operation unit 35 of the lock arm 21 and presses the push operation unit 54 downward to release the release operation unit 35 of the lock arm 21. Can be pressed downward (see FIG. 2). Further, the push-in operation unit 54 is arranged so as to be shifted rearward from the release operation unit 35 when the slider 50 is in the bending limit position.

The spring member 58 is formed of a well-known spring such as a compression coil spring, and is elastically extendable in the front-rear direction (axial direction).
As shown in FIG. 10, the spring accommodating portion 59 is provided with a pair on the lower side of the slider main body 51. Each spring accommodating portion 59 has a substantially cylindrical shape that can accommodate the spring member 58 therein. Each spring accommodating portion 59 is provided with a pair of spring receiving portions 59R that support both front and rear ends of the spring member 58 in the front-rear direction.

  As shown in FIG. 1, a backpacking portion 46 is provided on the upper surface of the first housing 20. The backpack 46 is provided on the upper surface of the lock arm 21. The backpacking portion 46 is provided at the front end portion of the lock arm 21 and in the vicinity of the locking portion 22 (a position shifted backward one step) (see FIG. 3). As shown in FIG. 1, the backpacking portion 46 is provided with a pair on both sides of the separation preventing portion 37, and the center in the front-rear direction of each backpacking portion 46 is aligned with the separation prevention portion 37 in the left-right direction. doing. The backpacking portion 46 is provided at the front end portion of the guide space 44 (a portion located in front of the assembly direction of the slider 50 with respect to the first housing 20).

  Each padding portion 46 has a rectangular shape that is slightly longer in the front-rear direction in plan view, and its protruding end surface is a flat surface. As shown in FIG. 3, the backpack portion 46 is a portion that slightly bulges out from other portions of the upper surface of the lock arm 21. The outer peripheral edge portion of the padding portion 46 has a gentle slope that gradually falls outward toward the entire circumference. The pair of backpack portions 46 have the same shape.

Next, an example of the assembly work of the slider 50 to the first housing 20 will be described.
The slider 50 is inserted into the guide space 44 of the first housing 20 from the rear. When the slider 50 is pushed by placing a finger on the pushing operation portion 54 of the slider 50, both side surfaces of the slider main body portion 51 are in sliding contact with the first guide portion 43F, and the outer peripheral surface of the spring accommodating portion 59 is slid on the second guide portion 43S. The slider 50 advances in the guide space 44 while being in contact. Eventually, the detachment stopper portion 56 of the slider main body 51 reaches the guide surfaces 39 of the pair of stopper guide portions 38, and is displaced upward due to the inclination to get over the detachment prevention portion 37 and reach the front side thereof. At this time, the ride-up portions 53 provided on both sides of the separation stopper portion 55 ride on the upper surface of the backpack portion 46. When the slider 50 is further pushed in, the riding-up portion 53 is shifted to the front of the backpacking portion 46, and the slider 50 reaches a proper assembly position (bend allowable position). At this time, the front surface of the slider main body 51 comes into contact with the front stopper 45 of the first housing 20, and the advance of the slider 50 is restricted. At the same time, the claw portion 57 of the movement stopper portion 56 of the slider 50 is locked to the movement preventing portion 42, thereby preventing the slider 50 from being detached backward (see FIG. 2). In this manner, the slider 50 is held in the movement-restricted state at the bending allowable position with respect to the first housing 20.

When the slider 50 is held at the bending allowance position, the front and rear ends of the spring member 58 are supported by the spring receiving portions 59R of the spring accommodating portion 59 and kept in the extended state. Further, the entire displacement portion 36 of the lock arm 21 is exposed upward through the opening 52 of the slider body 51, and the displacement portion 36 can be bent upward (in the unlocking direction).
Thus, the assembly work of the slider 50 to the first housing 20 is completed.

Next, an example of the fitting operation of the connector C will be described.
The two housings 20 and 60 are brought close to each other so that the hood portion 62 of the second housing 60 is fitted into the fitting space 25 of the first housing 20 in which the slider 50 is assembled at the bending allowable position. Then, as shown in FIG. 11, the spring pressing portion 66 provided in the second housing 60 enters the spring accommodating portion 59 from the front, presses the front end portion of the spring member 58, and elastically springs the spring member 58 in the front-rear direction. Compressed. Further, the locking portion 22 of the lock arm 21 comes into contact with the lock portion 61, and the displacement portion 36 is bent upward and deformed with the leg portion 33 as a fulcrum.

  When the two housings 20 and 60 are in the normal fitting state, the locking portion 22 of the lock arm 21 gets over the lock portion 61 and the arm main body portion 34 is elastically restored. The housings 20 and 60 are locked in the fitted state so as to face the lock portion 61 in the front-rear direction. Thereby, the terminal fitting 27 and the tab 63 are electrically connected normally. Note that the locking portion 22 of the lock arm 21 is in contact with the upper surface of the second housing 60 when both the housings 20, 60 are locked.

  Further, when both housings 20 and 60 reach the normal fitting state, as shown in FIG. 12, the front end of the hood portion 62 comes into contact with the front end of the movement stopper portion 56, and the movement stopper portion 56 is bent and deformed upward. . As a result, the claw portion 57 of the movement stopper portion 56 is separated from the movement prevention portion 42, the movement restriction of the slider 50 is released, the urging force stored in the spring member 58 is released, and the spring member 58 extends backward. To do. As the spring member 58 extends, the entire slider 50 moves rearward. In the moving process of the slider 50, the side surface of the slider main body 51 slides on the inner surface of the first guide portion 43F, and the outer peripheral surface of the spring accommodating portion 59 slides on the inner peripheral surface of the second guide portion 43S. Operation is guided.

  At this time, the riding-up portion 53 gets on the padding portion 46 smoothly by the inclination of the outer peripheral edge of the padding portion 46 (see FIG. 15). Accordingly, the slider 50 is displaced upward, and as shown in FIG. 16, the spring accommodating portion 59 is pressed against the upper surface side of the second guide portion 43S, and the slider 50 is moved between the first housing 20 and the slider 50. The upper gap of 50 disappears.

Further, as shown in FIG. 14, the detachment stopper portion 55 contacts the front side of the detachment prevention portion 37, and the detachment of the slider 50 to the rear is prevented. At this time, the spring member 58 extends substantially in a natural state. Thus, the slider 50 moves to the deflection limit position, and the deflection of the lock arm 21 (displacement upward of the displacement portion 36) is limited by the separation stopper portion 55 and the riding-up portion 53 arranged on the upper surface side of the lock arm 21. The
Thus, the connector C fitting operation is completed.

  By the way, if the fitting operation is stopped before the two housings 20 and 60 are properly fitted, the second housing 60 is pushed back by the biasing force of the spring member 58 accumulated during the fitting process. Thus, the housings 20 and 60 are separated from each other. Thereby, since an operator notices that both housings 20 and 60 are not normally fitted, both housings 20 and 60 can be prevented from being left in a semi-fitted state. That is, the slider 50 has not only a function of improving the lock holding force but also a function of detecting half-fitting.

  Further, when the housings 20 and 60 are separated due to maintenance or the like, the pushing operation portion 54 of the slider 50 is pushed with a finger to push the slider 50 forward. Then, the spring member 58 is elastically compressed, and the second housing 60 is pressed forward (in the direction of detachment from the first housing 20) by the spring member 58. As the slider 50 moves forward, the slider body 51 is retracted from above the displacement portion 36 of the lock arm 21, and the bending operation of the lock arm 21 is allowed. In this state, when the pushing operation portion 54 of the slider 50 is pressed downward, the release operation portion 35 of the lock arm 21 is pushed downward by the pushing operation portion 54 and the displacement portion 36 of the lock arm 21 is lifted upward. As a result, the locking portion 22 and the locking portion 61 of the lock arm 21 are unlocked, and the second housing 60 is removed from the first housing 20 by the pressing force (biasing force) due to the elastic return (extension) of the spring member 58. Be separated.

Next, operations and effects of the embodiment configured as described above will be described.
In the connector C of this embodiment, the locking arm 22 provided in the lock arm 21 is bent by bending the lock arm 21 provided in the first housing 20 of the pair of housings 20 and 60 that can be fitted to each other. And the lock part 61 provided in the second housing 60 are locked to hold the two housings 20 and 60 in a fitted state, and the lock arm 21 is bent so that the lock part 22 and the lock part 61 are A locking mechanism is provided that allows the housings 20 and 60 to be detached when the locking is released. The first housing 20 is assembled with a slider 50 that is movable to a position that restricts the bending of the lock arm 21 and a position that allows the bending of the lock arm 21. The connector C includes a filling portion 46 that fills a gap in the vertical direction (direction parallel to the bending direction of the lock arm 21) between the slider 50 and the lock arm 21. According to this configuration, since the lock arm 21 is prevented from bending in the gap between the slider 50 and the lock arm 21, the pair of housings 20 and 60 can be reliably held in the fitted state. .

  Further, the backpacking portion 46 is provided in a portion of the first housing 20 that is located in front of the slider 50 in the assembly direction. According to this configuration, when the slider 50 is assembled to the first housing 20, the slider 50 comes into contact with the backpacking portion 46 only in the final stage. It is possible to prevent the assembling work of the slider 50 from becoming difficult as compared with the case where the contact is continued.

  Further, the backpacking portion 46 is provided in the vicinity of the position where the locking portion 22 and the locking portion 61 are locked. According to this configuration, since there is no gap in the direction parallel to the bending direction of the lock arm 21 in the vicinity of the position where the locking portion 22 and the locking portion 61 are locked, the locking arm 21 is locked with the locking portion 22. It can prevent more reliably that it displaces in the direction from which latching with the part 61 is removed.

  The slider 50 is assembled from the rear with respect to the first housing 20, and the slider 50 is engaged with the first housing 20 in the front-rear direction so that the slider 50 moves rearward from the first housing 20. A detachment prevention structure (detachment prevention part 37 and detachment stopper part 55) for preventing detachment is provided, and a backpacking part 46 is provided on the side of the detachment prevention part 37. Here, for example, when the backpacking portion is provided on the front side of the separation preventing portion, there is a possibility that the slider floats when riding on the backpacking portion, and eventually comes off the separation prevention portion and separates. . However, in the present invention, since the backpacking portion 46 is provided on the side of the separation preventing portion 37, such a situation can be prevented.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the backpacking portion 46 is provided with a pair on the side of the detachment preventing portion 37. However, the present invention is not limited to this, and the number or position of backpacking portions is arbitrarily set. be able to.
(2) In the above embodiment, the slider 50 is assembled on the first housing 20 side where the lock arm 21 is provided. However, the slider is not limited to this, and the slider is located on the second housing side where the lock portion is provided. It may be assembled.
(3) In the above-described embodiment, the backpacking portion 46 is provided in the first housing 20, but the present invention is not limited thereto, and the backpacking portion may be provided in the slider.
(4) In the above embodiment, the backpacking portion 46 is provided in a portion of the first housing 20 that is positioned in front of the slider 50 in the assembly direction. You may provide in the part located in the middle or back of the assembly direction of a slider among 1st housings.
(5) In the above embodiment, the backpacking portion 46 is provided on the upper surface of the lock arm 21. However, the present invention is not limited to this. For example, the backpacking portion is provided on the upper surface side of the spring accommodating portion of the slider. Then, the slider may be displaced downward in the vertical gap between the slider and the first housing to fill the vertical gap between the slider and the lock arm.

C ... Connector 20 ... First housing (one housing)
21 ... Lock arm 22 ... Locking part 37 ... Detachment prevention part (detachment prevention structure)
46 ... Stuffing part 50 ... Slider 55 ... Removal stopper part (detachment prevention structure)
60. Second housing (the other housing)
61 ... Lock part

Claims (3)

Of the pair of housings that can be fitted to each other, the lock arm provided in one of the housings bends, so that the locking portion provided on the lock arm and the locking portion provided on the other housing are locked. And the pair of housings are held in a fitted state, and the lock arm is bent so that the engagement between the engagement portion and the lock portion is released, and the pair of housings can be detached,
A slider that is assembled to one of the pair of housings and is movable to a position that restricts the bending of the lock arm and a position that allows the bending of the lock arm;
A padding portion that fills a gap between the slider and the lock arm in a direction parallel to the bending direction of the lock arm;
Equipped with a,
The slider is assembled to the housing from the rear;
The slider and the housing are provided with a detachment prevention structure that prevents the slider from detaching rearward from the housing by locking in the front-rear direction.
The connector in which the backpacking part is provided on the side of the separation preventing structure .   The connector according to claim 1, wherein the backpacking portion is provided in a portion of the housing that is positioned forward in the assembly direction of the slider.   The connector according to claim 1, wherein the backpacking portion is provided in the vicinity of a position where the locking portion and the lock portion are locked.

Images