JP2011165443A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a separation work of a connector smoothly, even when a sufficient space is not secured around the connector. <P>SOLUTION: A combined-use operation unit 18 (operation unit for separation) is installed in a first housing 10, an operating member 30 which can displace between an initial position and a fitting position is installed in the first housing 10, and a sliding surface for engagement 37 which slide-contacts an insertion engagement part 27 of a second housing 20 when the operating member 30 is displaced from the initial position to the engagement position and brings both housings 10, 20 in close contact to be in engagement state is installed in the operating member 30. An escape unit 38 which avoids interference between the operating member 30 and the insertion engagement part 27 by making pass the insertion engagement part 27 when both housings 10, 20 are in the process of separation is installed in the operating member 30. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a connector.

  Patent document 1 discloses a connector suitable for a fitting operation in a narrow space. In this connector, the fitting is performed using a rotation type lever that exhibits a boosting action, but from the start to the middle of the fitting, the lever is rotated in one direction, and then the lever The connector is brought into a normal fitting state by shifting the rotation center of the lever and rotating the lever in the reverse direction.

JP 2009-277487 A

  When the connector is fitted in a narrow space such as in an engine room, after fitting, other parts and devices are attached around the connector, and for that purpose, the lever is rotated around the connector in the disengagement direction. Space may not be secured. In such a case, when the connector is detached for maintenance or the like, the work process becomes complicated because it is necessary to remove the parts and devices around the connector before turning the lever. .

  The present invention has been completed based on the above circumstances, and an object of the present invention is to allow a connector to be smoothly detached even when a sufficient space is not secured around the connector.

  As a means for achieving the above object, the invention of claim 1 includes a first housing and a fitting engagement portion, and a second housing capable of fitting and detaching from the first housing. And a detachment operation portion provided in at least one of the first housing and the second housing, and provided in the first housing, and can be displaced between an initial position and a fitting position. An operating member and the first housing and the second housing are moved closer to each other by slidingly contacting the engaging portion provided in the operating member and being moved from an initial position to a fitting position. And a sliding contact surface for fitting to be brought into a fitting state, and provided in the operation member, and in the process of separating the first housing and the second housing, the operation is performed by passing the fitting engaging portion. Parts and The place which is a relief section for avoiding interference with the serial fitting engaging portion having characteristic.

  According to a second aspect of the present invention, in the first aspect, the operation member is formed with a fitting operation portion for displacing the operation member from an initial position to a fitting position, and the operation member is fitted. In the state of being in the aligned position, the fitting operation portion is characterized by being positioned in front of the detachment operation portion in the fitting direction of the first housing with respect to the second housing.

  According to a third aspect of the present invention, in the first or second aspect, the first housing and the second housing are engaged with each other by engaging the first housing and the second housing with each other. It is characterized in that a lock portion is provided for locking to the state.

  According to a fourth aspect of the present invention, in the first aspect of the present invention, the first housing is formed with a push operation portion capable of pushing the first housing closer to the second housing. It has the characteristics in the place.

  According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the first housing and the second housing are arranged in one of the first housing and the second housing. A lock arm is provided that can be displaced between a lock position that locks in the fitted state and an unlock position that releases the lock, and the lock arm locks the lock arm from the unlock position. A feature is that an unlocking operation part for displacing to a position is formed, and the releasing operation part is formed in the unlocking operation part.

<Invention of Claim 1>
When fitting the first housing and the second housing, if the operating member is displaced from the initial position to the fitting position, both housings are fitted by sliding contact between the fitting sliding contact surface and the fitting engaging portion. It becomes a joint state. When the two housings that have been fitted are released, the fingers may be directed to the operating portion for removal and the two housings may be pulled apart. In the process of detachment, the engaging portion for fitting passes through the escape portion without coming into contact with the sliding surface for fitting, so that it is not necessary to displace the operating member. When detaching both housings, a space for displacing the operation member around the connector is unnecessary, so that even when a sufficient space is not secured around the connector, the connector can be smoothly detached.

<Invention of Claim 2>
When removing both housings in the fitted state, the first housing is pulled backward by placing a finger on the detaching operation portion. In the present invention, the fitting operation portion is more than the detachment operation portion. Since it is located in the front, the operation part for fitting does not get in the way when operating the operation part for detachment.

<Invention of Claim 3>
As a means for locking the first housing and the second housing in the fitted state, the lock portion provided in the first housing and the lock portion provided in the second housing are engaged. A function for locking the housing in the fitted state is unnecessary. Therefore, it is possible to select a usage pattern in which both housings are fitted using the operating member and a usage pattern in which both housings are fitted without using the operating member.

<Invention of Claim 4>
When the first housing and the second housing are fitted without using the operation member, the first housing can be easily fitted to the second housing by pushing the push operation portion.

<Invention of Claim 5>
When removing both housings that are locked in the mated state, operate the unlocking operation part of the lock arm with your finger to displace the lock arm from the locked position to the unlocked position. Operate with your fingers and pull both housings apart. In the present invention, since the release operation part and the unlocking operation part are provided at the same position, it is not necessary to move the hands and fingers greatly when moving from the work of releasing the lock to the work of separating both housings, Excellent workability.

The top view showing the state which the 1st housing and the 2nd housing fit in Embodiment 1. AA line sectional view of FIG. BB sectional view of FIG. The top view showing the state before fitting the 1st housing and the 2nd housing CC sectional view of FIG. DD sectional view of FIG. Sectional drawing which cuts in the same position as FIG.2 and FIG.5, and represents the state which the 1st housing and the 2nd housing started fitting Sectional drawing which cut | disconnects in the same position as FIG.3 and FIG.6, and represents the state which the 1st housing and the 2nd housing started fitting FIG. 2 is a cross-sectional view showing a state where the first housing and the second housing are in the middle of fitting, cut at the same position as in FIGS. Front view of first housing Side view of first housing Rear view of the first housing

<Embodiment 1>
A first embodiment of the present invention will be described below with reference to FIGS. The connector according to the present embodiment includes the first housing 10 and the second housing 20 that can be fitted to and detached from each other. Even when a sufficient space is not secured around the connector, the connector is detached. The work can be done smoothly. The first housing 10 and the second housing 20 are fitted by a rotation (tilting) operation of the operation member 30 with their front end surfaces facing each other. In addition, the front in the 1st housing 10 is the left in FIGS. 1-9, and the front in the 2nd housing 20 is the right in FIGS.

  The first housing 10 is made of a synthetic resin, and is integrally formed with a terminal accommodating portion 11 that forms a block shape as a whole and a cylindrical fitting portion 12 that protrudes forward and surrounds the terminal accommodating portion 11. It is a thing. In the terminal accommodating portion 11, a plurality of well-known female terminal fittings (not shown) having a rectangular tube-shaped terminal connecting portion formed at the front end portion are accommodated. An electric wire (not shown) connected to the rear end portion of each female terminal fitting is led backward from the rear end surface (the right end surface in FIGS. 1 to 9) of the first housing 10.

  A pair of left and right symmetrical push operation portions 13 are formed on the left and right outer surfaces of the first housing 10. The formation range of the push operation portion 13 on the outer surface of the first housing 10 is a substantially lower half region in the up-down direction and a substantially latter half region in the front-rear direction. The left and right double-push operation unit 13 is stepped when viewed from above (the direction intersecting the fitting direction of both housings 10 and 20), and the left and right double-push operation unit 13 is formed in the first housing 10. The portion is widened stepwise toward the front. Therefore, when a finger is applied to the left / right both-side pressing operation unit 13 so as to be sandwiched from both the left and right sides, the finger is caught so as not to be easily displaced relatively forward with respect to the first housing 10. Yes. That is, the first housing 10 can be pushed forward by pinching the double-pushing operation part 13 with a finger.

  A pair of left and right symmetric locking grooves 14 for holding an operation member 30 to be described later in an initial position are formed on the left and right outer surfaces of the first housing 10. The locking groove 14 extends straight from the front end of the cylindrical fitting portion 12 to the rear (that is, parallel to the fitting direction of the housings 10 and 20). The locking groove 14 has a shape in which the inner surface of the cylindrical fitting portion 12 is recessed, and the region of the locking groove 14 excluding the front end portion communicates (opens) with the outer surface of the cylindrical fitting portion 12. ing. The locking groove 14 is positioned above the push operation portion 13 in the vertical direction, and extends substantially over the front half of the first housing 10 in the front-rear direction.

  A pair of left and right symmetrical locking recesses 15 are formed on the left and right outer surfaces of the first housing 10 as means for holding the operating member 30 in the fitting position. The locking recess 15 is located within the formation range of the push operation part 13 in the up-down direction, and is located in front of the push operation part 13 in the front-rear direction. A pair of left and right symmetrical support shafts 16 project from the left and right outer surfaces of the first housing 10 as means for supporting the operation member 30 so as to be rotatable (tilted). The support shaft 16 is located within the formation range of the push operation unit 13 in the front-rear direction, and is located above the push operation unit 13 in the vertical direction.

  The first housing 10 has a generally flat plate-like lock arm 17 extending in the front-rear direction (a direction parallel to the fitting / removing direction of the housings 10 and 20) along its upper surface (which is a constituent feature of the present invention). Lock part) is formed. The lock arm 17 is supported on the upper surface of the first housing 10 via a leg portion 17a extending downward from a position slightly behind the center in the front-rear direction. The lock arm 17 is always held at the lock position shown in FIGS. 3, 6, and 8, but the rear end portion is displaced downward (in a direction approaching the upper surface of the first housing 10) with the leg portion 17 a as a fulcrum. It can be elastically bent like a seesaw to the unlocked position.

  A lock hole 17b is formed at the front end of the lock arm 17 to be engaged with a lock protrusion 25 of the second housing 20 described later. At the rear end portion of the lock arm 17 (a position behind the leg portion 17a), a function as a lock release operation portion for elastically bending the lock arm 17 in the lock position to the lock release position, and a fitting state A dual-purpose operation unit 18 having a function as a separation operation unit for hooking a finger when the two housings 10 and 20 are separated is formed. When the operation is performed so as to push down the upper surface of the combined operation unit 18 (to approach the upper surface of the first housing 10), the lock arm 17 is elastically bent to the unlocked position.

  The upper surface of the dual-purpose operation unit 18 (that is, the surface to which the finger is applied during the unlocking operation and the detaching operation) is the side (the direction intersecting the fitting direction of both the housings 10 and 20). As shown in FIGS. 3, 6, and 8, it has a stepped shape that increases sequentially toward the rear. Therefore, when the finger is applied to the dual operation unit 18 so as to press from above, the finger is caught so as not to be easily displaced relatively backward with respect to the first housing 10 (lock arm 17). It has become. That is, the first housing 10 can be pulled backward by hooking a finger on the upper surface of the dual operation unit 18.

  The second housing 20 is formed integrally with a device (not shown), and includes a terminal holding portion 21 that holds a well-known male terminal fitting 23, and a hood portion 22 that protrudes forward from the terminal holding portion 21. The hood portion 22 surrounds the tab 24 at the tip of the male terminal fitting 23. The first housing 10 is fitted inside the hood portion 22. The upper surface wall of the hood portion 22 is formed with a lock protrusion 25 (a lock portion which is a constituent element of the present invention) protruding from the upper surface (outer surface).

  On the left and right side walls of the hood portion 22 are formed a pair of left and right symmetric locking release portions 26 extending linearly in parallel with the fitting direction of the housings 10 and 20 from the front end of the hood portion 22 to the rear. The unlocking portion 26 protrudes in a rib shape from the outer surfaces of the left and right side walls, and the formation region in the front-rear direction extends from the front end of the hood portion 22 to a position near the rear end of the second housing 20.

  Similarly, left and right side walls of the hood portion 22 are formed with a pair of left and right symmetrical engagement portions 27 for fitting. The engaging portion 27 for fitting protrudes from the outer surface of the left and right side walls and continues to the rear end of the locking release portion 26. When viewed from the side (direction intersecting with the fitting direction of both housings 10 and 20), the fitting engagement portion 27 has a semicircular arc shape with the arc surface facing rearward. The fitting engagement portion 27 includes a small-diameter engagement portion 27a directly connected to the outer surface of the side wall and a large-diameter engagement portion 27b continuous to the protruding end of the small-diameter engagement portion 27a. The arc surface of the large-diameter engagement portion 27b is concentric with the arc surface of the small-diameter engagement portion 27a and has a larger radius of curvature than the arc surface of the small-diameter engagement portion 27a.

  The operation member 30 is made of synthetic resin, and is formed by integrally forming a pair of symmetrical arm portions 31 and a connecting portion 32 that connects both arm portions 31. The arm portion 31 has a flat plate shape as a whole, and a bearing hole 33 is formed at the rear end thereof. The operating member 30 is engaged with the first housing 10 by fitting the bearing hole 33 to the support shaft 16, and an initial position (see FIGS. 4 to 8) and a fitting position (see FIGS. 1 to 3). Is supported so as to be able to rotate (tilt) about the axis line (support shaft 16) in the left-right direction (direction intersecting with the fitting direction of both housings 10, 20). In a state where the operation member 30 is attached to the first housing 10, at least the rear end side portions of the both arm portions 31 are disposed so as to face the outer surface of the first housing 10, and the connecting portion 32 is disposed in the first housing 10. It is arranged above.

  The left and right arm portions 31 are formed with a pair of left and right symmetric elastic locking pieces 34 that extend downward in a cantilevered manner and are capable of elastic bending in the left and right directions. A locking projection 35 that protrudes inward is formed at the lower end (extended end) of the elastic locking piece 34. Both elastic locking pieces 34 are located in front of the bearing hole 33 (leftward in FIGS. 1 to 9) and rearward of the connecting portion 32, and the operating member 30 has an initial position and a fitting position. In the process of rotating between, the positional relationship facing the outer surface of the first housing 10 is always maintained.

  The left and right arm portions 31 are slidably contacting portions protruding from the inner surface of the end portion on the opposite side to the bearing hole 33 in the front-rear direction (position opposite to the bearing hole 33 with the elastic locking piece 34 interposed therebetween). A pair 36 is formed symmetrically. The rear surface of the slidable contact portion 36 is a fitting slidable contact surface 37 having an arc shape eccentric from the rotation center of the operation member 30. The sliding contact portion 36 is formed with an engaging groove 36 a in which a fitting sliding contact surface 37 is recessed along the inner surface of the arm portion 31, and is engaged in the rear end edge portion of the sliding contact portion 36. A portion that protrudes in a rib shape to the rear of the engagement groove 36a on the inner side in the left-right direction from the groove 36a is a positioning portion 36b. The sliding contact surface 37 for fitting is composed of a first sliding contact surface 37a that constitutes the groove bottom surface of the engaging groove 36a, and a second sliding contact surface 37b that is a protruding end surface of the positioning portion 36b. In addition, in the space corresponding to the inner surfaces of both the left and right arm portions 31, a region adjacent to the sliding contact portion 36 above is a relief portion 38. The escape portion 38 is opened to the front end edge of the arm portion 31.

  The connecting portion 32 is formed with a fitting operation portion 39. The fitting operation portion 39 is formed in a central region of the connecting portion 32 in the left-right direction and over a region continuous with the rear edge of the connecting portion 32 in the front-rear direction. A plurality of anti-slip grooves extending in the left-right direction are formed on the upper surface of the fitting operation portion 39 (the surface to which a finger is applied during the fitting operation). When the finger is directed to the upper surface of the fitting operation portion 39 and the connecting portion 32 is pressed forward, the finger is caught in the groove, so that the finger moves forward with respect to the connecting portion 32 (fitting operation portion 39). It is difficult to cause slippage.

  Next, the operation of this embodiment will be described. When the housings 10 and 20 are fitted, the operation member 30 is rotated to the initial position in the first housing 10 as shown in FIGS. Then, as shown in FIGS. 5 and 7, the locking protrusion 35 of the elastic locking piece 34 is locked in the locking groove 14, whereby the operation member 30 is held at the initial position. In a state where the operation member 30 is in the initial position, the fitting operation portion 39 of the operation member 30 is at the highest position within the rotation range of the operation member 30 as shown in FIGS. It is located obliquely forward and upward with respect to 16 and is located in front of the dual operation portion 18 of the lock arm 17. The upper surface of the fitting operation unit 39 faces obliquely upward and rearward with respect to the horizontal direction (a direction parallel to the fitting direction of the housings 10 and 20). Further, the sliding contact portion 36 of the operation member 30 is retracted above the movement path of the locking release portion 26 of the second housing 20 when the housings 10 and 20 are fitted.

  From this state, the terminal accommodating portion 11 of the first housing 10 is fitted into the hood portion 22 of the second housing 20, and the cylindrical fitting portion 12 is fitted to the hood portion 22. Then, as shown in FIG. 7, the front end portion of the lock release portion 26 hits the lock projection 35, and the lock projection 35 is disengaged from the lock groove 14 while the elastic lock piece 34 is elastically bent outward. Let Thereby, the operation member 30 can be rotated from the initial position to the fitting position side. At this time, the engagement portion 27 for fitting of the second housing 20 comes into a state of approaching or contacting with the lower end of the sliding contact surface 37 for fitting of the operation member 30.

  Thereafter, when the finger is applied to the fitting operation portion 39 and the connecting portion 32 is operated to press obliquely downward and forward, the operation member 30 rotates toward the fitting position with the support shaft 16 as a fulcrum ( Tilt). As the operation member 30 rotates, the fitting operation portion 39 is displaced obliquely downward and forward, and the fitting sliding contact surface 37 is in sliding contact with the arcuate surface of the fitting engaging portion 27. That is, the first sliding contact surface 37a is in sliding contact with the arc surface of the large diameter engaging portion 27b, and the second sliding contact surface 37b is in sliding contact with the arc surface of the small diameter engaging portion 27a. The first housing 10 is attracted to the second housing 20 by the boosting action by the sliding contact. The fitting operation of both housings 10 and 20 proceeds. In the process of fitting the two housings 10 and 20, the front end of the lock arm 17 interferes with the lock protrusion 25, so that the lock arm 17 is elastically bent to the unlock position.

  During this time, as shown in FIG. 9, the first sliding contact surface 37a continues the sliding contact operation with the arcuate surface of the large-diameter engaging portion 27b, and the second sliding contact surface 37b is the arcuate surface of the small-diameter engaging portion 27a. Continue the sliding contact operation. Further, a part of the outer peripheral edge of the large-diameter engaging portion 27b enters the engaging groove 36a, and the positioning portion 36b is hooked from the inner side in the left-right direction with respect to the outer peripheral edge of the large-diameter engaging portion 27b. Thus, the arm portion 31 is prevented from separating outward in the left-right direction from the outer surface of the second housing 20 (that is, relative displacement in the left-right direction between the operation member 30 and the second housing 20), and thus The sliding contact operation between the sliding contact portion 36 and the fitting engagement portion 27 is performed stably and reliably.

  When the operation member 30 reaches the fitting position, as shown in FIGS. 1 to 3, both the housings 10 and 20 are brought into a normal fitting state. At this time, the operating projection 30 is locked in the fitting position by the locking protrusion 35 of the elastic locking piece 34 being locked in the locking recess 15. In addition, the lock arm 17 that has been elastically bent to the unlocked position is elastically returned to the locked position, and the lock hole 17b is locked to the lock protrusion 25, and the both housings 10 and 20 are regulated to be detached by this locking action. Locked to. Thus, the fitting operation of both housings 10 and 20 is completed.

  Further, in a state where the operation member 30 is in the fitting position, the fitting engagement portion 27 passes through the sliding contact portion 36 and is positioned in the escape portion 38 further above the upper end of the sliding contact portion 36. That is, the sliding contact between the fitting engagement portion 27 and the sliding contact portion 36 is released. Further, since the fitting operation unit 39 is located in front of the dual operation unit 18 of the lock arm 17, there are no members or parts constituting the connector above the dual operation unit 18. The finger can be placed on the upper surface of the portion 18 to perform unlocking and releasing operations.

  When the two housings 10 and 20 that have been fitted are removed, first, the unlocking operation is performed by placing the finger on the upper surface of the dual operation unit 18 and pushing the dual operation unit 18 downward. By this operation, the lock arm 17 is elastically bent from the lock position to the lock release position, and the lock by the locking of the lock hole 17b and the lock protrusion 25 is released, so that both the housings 10 and 20 can be detached. Become. Thereafter, with the finger pressed against the upper surface of the dual-purpose operation unit 18 being left as it is, the dual-purpose operation unit 18 is pulled backward with the finger while the lock arm 17 is held in the unlocked position. Manipulate. Then, the first housing 10 is detached from the second housing 20.

  In the detaching operation of both the housings 10 and 20, the operating member 30 remains locked in the fitting position. However, in the process of detaching the both housings 10 and 20, the engaging engagement portion 27 causes the operating member 30 to escape. Since the inside of the portion 38 moves along the upper surface of the sliding contact portion 36, the fitting engagement portion 27 does not interfere with the operation member 30. That is, the detachment operation of the housings 10 and 20 is not hindered due to the interference between the fitting engagement portion 27 and the operation member 30.

  Further, in the connector of the present embodiment, the housings 10 and 20 can be fitted without using the operation member 30 (with the operation member 30 removed from the first housing 10). In this case, a finger may be applied to the push operation portion 13 of the first housing 10 so that the first housing 10 is pressed against the second housing 20 and fitted. In a state where both the housings 10 and 20 are fitted, the housings 10 and 20 are locked in the fitted state by the locking of the lock arm 17 and the lock protrusion 25. Even when the operation member 30 is detached from the first housing 10, the first housing 10 can be operated by operating the dual operation unit 18 in the same manner as described above (when fitting operation is performed using the operation member 30). Can be detached from the second housing 20.

  As described above, the connector of the present embodiment includes the first housing 10 and the engaging portion 27 for fitting, and the second housing 20 that can be fitted to and detached from the first housing 10 and the first housing 10. A detachment operation portion (shared operation portion 18) provided in the housing 10, an operation member 30 provided in the first housing 10 and capable of displacement between the initial position and the fitting position, and the operation member 30 The sliding contact for fitting which brings both housings 10 and 20 close to each other and brings them into the fitted state by slidingly contacting the fitting engaging portion 27 in the process of the operation member 30 being displaced from the initial position to the fitting position. Relief that is provided on the surface 37 and the operation member 30 and in which the both housings 10 and 20 are separated from each other, allows the engagement member 27 to pass therethrough to avoid interference between the operation member 30 and the engagement member 27. Part 38

  According to this configuration, when the two housings 10 and 20 that have been fitted are removed, both the housings 10 and 20 are placed while the fingers are addressed to the dual operation unit 18 and the first housing 10 is sandwiched vertically. Can be separated. In the detachment process, the engaging portion 27 for fitting passes through the escape portion 38 without coming into contact with the sliding surface 37 for fitting, so that the operating member 30 does not have to be displaced. As described above, according to the connector of the present embodiment, when both the housings 10 and 20 are detached, a space for displacing the operation member 30 from the fitting position to the initial position is unnecessary around the connectors. Therefore, even when a sufficient space is not secured around the connector, the connector can be smoothly detached.

  Further, when the two housings 10 and 20 in the fitted state are detached, the first housing 10 is pulled backward by placing a finger on the dual operation section 18 (detachment operation section). Then, in the state where the operation member 30 is in the fitting position, the fitting operation unit 39 is located in front of the dual operation unit 18 in the fitting direction of the first housing 10 with respect to the second housing 20. When operating 18, the fitting operation section 39 does not get in the way.

  Further, as means for locking the first housing 10 and the second housing 20 in the fitted state, the lock arm 17 provided on the first housing 10 and the lock protrusion 25 provided on the second housing 20 are engaged. Therefore, the operation member 30 does not need a function for locking both the housings 10 and 20 in the fitted state. Therefore, it is possible to select a usage pattern in which the housings 10 and 20 are fitted using the operation member 30 and a usage pattern in which the housings 10 and 20 are fitted without using the operation member 30.

  Further, the first housing 10 is formed with a push operation portion 13 that can be pushed to bring the first housing 10 closer to the second housing 20. Therefore, when the first housing 10 and the second housing 20 are fitted without using the operation member 30, the first housing 10 can be easily moved with respect to the second housing 20 by pushing the push operation portion 13. Can be fitted.

  The first housing 10 is provided with a lock arm 17 that can be displaced between a lock position that locks both the housings 10 and 20 in a fitted state and a lock release position that releases the lock. The lock arm 17 is formed with a dual operation portion 18 as a lock release operation portion for displacing the lock arm 17 from the lock release position to the lock position, and the dual operation portion 18 (lock release operation portion) is detached. It functions as an operation unit. That is, the release operation part is formed in the lock release operation part.

  According to this configuration, when the two housings 10 and 20 that are locked in the fitted state are removed, the dual operation portion 18 of the lock arm 17 is operated with a finger to move the lock arm 17 from the locked position to the unlocked position. Then, the dual operation section 18 may be operated with a finger and the housings 10 and 20 may be pulled apart. In the present embodiment, since the detaching operation portion and the unlocking operation portion are provided at the same position as the combined operation portion 18, when shifting from the unlocking operation to the operation of separating both housings 10, 20, There is no need to move a finger greatly, and the workability is excellent.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, since the second housing is provided integrally with the device and does not move, the detaching operation portion is provided only in the first housing, but the first housing is integrally formed with the device. In this case, the detachment operation unit may be provided only in the second housing. When both the first housing and the second housing are individually movable, the detachment operation unit is provided. May be provided in both housings.
(2) In the above embodiment, the case where the operation member rotates is described. However, the present invention can also be applied to the case where the operation member slides (translates).
(3) In the above-described embodiment, when the operation member is in the fitting position, the fitting operation portion is positioned in front of the detachment operation portion in the fitting direction of the first housing with respect to the second housing. However, on the contrary, the operation part for fitting may be located behind the operation part for detachment.
(4) In the above embodiment, the two housings are locked in the fitted state by the engagement of the lock portions provided in the first housing and the second housing. However, as means for locking both the housings in the fitted state. The lock portion provided on the second housing and the lock portion provided on the operation member may be engaged. In this case, the operation member is always used in a state of being mounted on the first housing.
(5) In the embodiment described above, only the lock portion of the first housing can be elastically bent out of the lock portion of the first housing and the lock portion of the second housing, but instead, only the lock portion of the second housing is allowed. May be elastically deflectable, and the lock portions of both the first housing and the second housing may be elastically deflectable.
(6) In the above embodiment, the detaching operation unit is formed in the unlocking operation unit of the lock arm, but the detaching operation unit may be formed in a position different from the unlocking operation unit. In this case, the position for forming the release operation portion may be a portion other than the lock release operation portion in the lock arm, or may be the outer surface of the housing in which the lock arm is formed.
(7) In the above embodiment, the push operation unit is provided in the first housing. However, such a push operation unit may not be provided in the first housing. This form in which the push operation portion is not provided can be applied to either the case where both housings are fitted without using the operation member or the case where both housings are fitted using the operation member.

DESCRIPTION OF SYMBOLS 10 ... 1st housing 13 ... Push operation part 17 ... Lock arm (lock part)
18 ... Dual operation unit (detachment operation unit, unlock operation unit)
20 ... 2nd housing 25 ... Lock protrusion (lock part)
27: Fitting engagement portion 30 ... Operation member 37 ... Fitting sliding contact surface 38 ... Relief portion 39 ... Fitting operation portion

Claims (5)

A first housing;
A second housing having a fitting engagement portion and capable of being fitted to and detached from the first housing;
A detachment operation portion provided on at least one of the first housing and the second housing;
An operation member provided in the first housing and capable of displacement between an initial position and a fitting position;
The first housing and the second housing are fitted to each other by being brought into sliding contact with the fitting engagement portion in the process of being displaced from the initial position to the fitting position. A sliding contact surface for mating to reach a state;
Relief that is provided on the operating member and that avoids interference between the operating member and the engaging portion of the fitting by passing the engaging portion of the fitting in the process of separating the first housing and the second housing. And a connector. The operation member is formed with a fitting operation portion for displacing the operation member from an initial position to a fitting position.
In the state where the operation member is in the fitting position, the fitting operation portion is positioned in front of the detachment operation portion in the fitting direction of the first housing with respect to the second housing. The connector according to claim 1.   The first housing and the second housing are each provided with a lock portion that locks the first housing and the second housing into a fitted state by engaging with each other. The connector according to claim 2.   The connector according to claim 3, wherein the first housing is formed with a push operation portion capable of being pushed so as to bring the first housing closer to the second housing. Either one of the first housing and the second housing is provided between a lock position for locking the first housing and the second housing in a fitted state and an unlock position for releasing the lock. There is a lock arm that can be displaced,
The lock arm is formed with an unlocking operation portion for displacing the lock arm from the unlock position to the lock position,
The connector according to any one of claims 1 to 4, wherein the release operation portion is formed in the unlock operation portion.

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