JP5550766B2 - Container with lock arm - Google Patents

Description

  The present invention relates to a container with a lock arm that allows a locking lock by a lock arm to be released by inserting a jig bar from the base side of the lock arm.

  6 (a) and 6 (b) show one form of a conventional container with a lock arm.

  The container with a lock arm is an electric connection box body composed of a synthetic resin upper cover 51 and a lower cover 52 of an electric connection box, and the upper cover 51 and the lower cover 52 are locked with a metal jig rod 56. It can be released with. As shown in FIG. 6A, locking is performed by engaging a flexible lock arm 53 formed on the same surface as the outer wall of the lower cover 52 and a step 57 on the inner surface of the outer wall of the upper cover 51.

  The lock arm 53 includes a protrusion 58 on the distal end side and an inclined rib 54 that follows the locking surface 58 a of the protrusion 58. A gap 55 for inserting a jig rod is provided upward from the bottom wall side of the lower cover 52 between the lock arm 53 and the inner surface of the outer wall of the upper cover 51, a rib 54 is located in the gap 55, and the protrusion 58 The locking surface 58 a abuts on the stepped portion 57.

  As shown in FIG. 6B, the jig bar 56 is inserted upward into the gap 55, and the lock arm 53 is bent inward while the tip of the jig bar 56 rides on the rib 54. The engagement with the portion 57 is released. In this state, the covers 51 and 52 are separated by pulling the covers 51 and 52 in the vertical direction while holding the jig bar 56.

  Locks are arranged at a plurality of positions of both covers 51 and 52, and each lock is simultaneously unlocked by each jig bar 56. An electrical component (not shown) such as a fuse or a relay is mounted on the upper cover 51, and each electric wire (not shown) terminal-connected to the electrical component is led out to the outside through the lower cover 52.

  FIG. 7 shows another embodiment of a conventional container with a lock arm.

  The container with a lock arm is a connector housing 61 of a connector, and a metal jig bar 65 is used to lock the flexible lock arm 62 of the connector housing 61 and the hole 22 of the external through bracket 2 ′. It can be released. The lock arm 62 is integrally provided on the outer wall side of the connector housing 61 made of synthetic resin, and has a protrusion 66 on the distal end side between the lock arm 62 and the outer wall surface.

  As shown in FIG. 8, the bracket 2 ′ includes a guide rail 20 provided in the board portion 19, an upper hole portion 22 communicating with a slit 21 in the middle of the guide rail 20 in the thickness direction, and a lower groove portion 26. It is what you have. The lock arm 62 (FIG. 7) is in contact with the inner surface of the edge portion 24 between the front end of the upper plate portion 23 and the hole portion 22, and the protrusion 66 on the distal end side of the lock arm 62 is engaged with the hole portion 22. The lock arm can be bent downward in the lower groove 26. The bracket 2 'is provided on the vehicle body, for example. The directionality such as up and down is for convenience of explanation, and does not necessarily coincide with the mounting direction of the connector 61.

  As shown in FIG. 7, a pair of slide engagement ribs 67 having an L-shaped vertical cross section are provided on the same surface on both sides of the lock arm 62, and the slide engagement ribs 67 are formed on the upper plate portion of the guide rail 20 (FIG. 8). 23, the lock arm 62 bends downward to get over the edge 24, is restored upward, and the projection 66 engages with the hole 22.

  From this state, the jig bar 65 is inserted rearward, that is, from the terminal accommodating portion 68 side of the connector 1 along the guide rail 20, and the protrusion 66 of the lock arm 62 is pushed down by the tip of the jig bar 65 so that the lock arm 62 faces downward. The engagement between the projection 66 and the edge 24 is released by bending, and the connector 1 is pulled forward, that is, toward the connector fitting chamber 69 to be detached from the bracket 2 ′.

  The connector 61 of this example accommodates a plurality of male terminals (not shown) with electric wires, the electric wire connecting portion side of the male terminals is accommodated in the terminal accommodating portion 68, and the male terminals are accommodated in the connector fitting chamber 69. A tab or pin for electrical contact protrudes. A connector (not shown) having a mating female terminal is fitted into the connector fitting chamber 69.

Japanese Patent Laid-Open No. 9-28018 (FIGS. 1 and 5)

  However, in the conventional container with a lock arm shown in FIG. 6, since the gap 55 between the lock arm 53 and the outer wall is increased by the rib 54 of the lock arm 53, the lock structure is enlarged, and the upper cover There is a problem that the space around the lock in 51 is wasted. In addition, since the jig bar 56 is easily pulled downward in FIG. 6B, both hands are pressed when the lower cover 52 is released downward from the upper cover 51 while pressing upward so that the jig bar 56 is not pulled out. There was a problem that it had to be used and workability was poor.

  7, the opening 70 on the insertion side of the jig bar 65 (the distal end side of the lock arm 62, that is, the protrusion 66 side) is blocked by, for example, the shape of the bracket 2 ′. In such a case, there is a problem that the lock cannot be released and the connector 61 can be forcibly pulled to break the lock.

  In view of the above points, the present invention allows a jig bar to be inserted and unlocked smoothly and reliably even when the distal end side of a lock arm of a container such as a connector housing is blocked. The lock structure can be made compact and space-saving, and in addition, the lock arm can be securely removed with good workability by preventing the jig bar from coming out when unlocking. The object is to provide a container.

In order to achieve the above object, a container with a lock arm according to a first aspect of the present invention includes a flexible lock arm having an inward projection on a distal end side, and the lock arm includes the lock arm. is jig rod insertable groove from the base side is formed, the groove is a bottom side, and a long inclined surface of gentle gradient formed to a longitudinally intermediate portion of the lock arm from the base side, the inclined surfaces have the long Following, protruding have a short inclined surface having steep formed to be inclined toward the distal end of the locking surface of the electromotive force, that followed engaging surface the short inclined plane via a short true face Features.

  With the above configuration, by inserting the jig bar into the groove from the base side of the lock arm while the lock arm is locked, the lock bar is locked while the jig bar enters along the long sloping surface of the groove. Next, the lock arm is secondarily bent in the unlocking direction while the tip end of the jig bar enters along the steep inclined surface with a steep slope. As a result, the lock arm is unlocked.

  A container with a lock arm according to a second aspect is the container with a lock arm according to the first aspect, wherein a pair of slide engaging portions are disposed on both sides of the lock arm, and the lock arm is a pair of slides. A flexible support wall for connecting the engaging portions and a lock arm main body protruding from the support wall, wherein the groove is provided in the support wall.

  With the above configuration, the support wall forms a part of the lock arm, and the support wall bends in the same direction as the lock arm main part and smaller than the lock arm main part when the jig bar is inserted, thereby assisting the lock arm main part. Even if the lock arm main body is short, the support wall bends integrally, so that the lock arm main body is prevented from sagging. A jig bar can be inserted from the base side of the lock arm along the groove of the support wall. The pair of slide engaging portions can be slidably engaged with a guide rail on the assembly counterpart side (bracket).

  The container with a lock arm according to claim 3 is the container with a lock arm according to claim 1 or 2, wherein the width of the groove is set wide enough to approximate the width of the protrusion of the lock arm. It is characterized by.

  With the above configuration, an existing wide jig bar can be used, and the jig bar can be prevented from bending when a small connector or the like is used as a container, and the jig bar can reliably bend the lock arm in the unlocking direction. I will. The wide jig bar securely catches the protrusion of the lock arm. The wide and thin jig bar can be used for a compact lock structure with a shallow groove in the lock arm.

  A container with a lock arm according to a fourth aspect is the container with a lock arm according to any one of the first to third aspects, wherein the container is a connector housing and engages the protrusion of the lock arm. The connector housing is disposed to face a bracket having a stop edge and a lock arm bending space, and a jig bar is provided between the locking edge and the protrusion along the groove from the base side of the lock arm. Can be inserted.

  With the above-described configuration, the jig bar enters between the protrusion of the lock arm and the engaging edge, and reliably separates the protrusion and the engaging edge. The jig bar is sandwiched and held between the protrusion and the locking edge by the restoring force of the lock arm. By sliding the connector housing in the disengagement direction in this state, the jig bar is extracted from the bracket integrally with the connector housing. The jig bar preferably has an inclined surface at the tip.

  According to the first aspect of the present invention, by providing the groove into which the jig bar can be inserted from the base side of the lock arm, the jig bar can be inserted into the lock arm even when the jig bar cannot be inserted from the tip side of the lock arm. It can be inserted and unlocked from the base side. In addition, the jig bar is inserted in order along the slanted and steeply inclined surfaces in the groove to ensure that the lock arm is bent flexibly with a large stroke in two steps. Can be performed smoothly and reliably. Further, by providing the inclined surface with a gentle slope in the groove, the space for inserting the jig bar can be saved, and the lock structure on the container side can be made compact.

  According to the second aspect of the present invention, the restoring force and durability of the lock arm main body when the jig bar is inserted into the support wall can be enhanced, and the jig bar can be straightened without tilting along the support wall with little bending. By inserting into the lock arm, the lock arm can be reliably bent in the unlocking direction.

  According to the third aspect of the present invention, the lock arm can be reliably bent in the unlocking direction by using a wide and thin jig bar, and the groove of the lock arm can be shallowed. Thus, the lock structure can be made compact.

  According to the fourth aspect of the present invention, the jig bar is sandwiched and held by the restoring force of the lock arm between the protrusion of the lock arm and the locking edge on the bracket side. The jig bar does not fall off even if the is released, and the connector housing can be efficiently extracted from the bracket.

It is a front view (one part is an enlarged view of a principal part) showing one embodiment of a connector housing as an example of a container with a lock arm concerning the present invention. It is the perspective view which made the longitudinal cross section from the center which shows a connector housing similarly. It is a longitudinal cross-sectional view which shows the state at the time of the initial release at the time of unlocking from the state which engaged the connector housing with the bracket. It is a longitudinal section showing the state at the time of lock middle release similarly. It is a longitudinal cross-sectional view which similarly shows the state at the time of unlocking completion. 1A and 1B show a form of a conventional container with a lock arm, in which FIG. 1A is a longitudinal sectional view in a locked state, and FIG. It is the side view which made the principal part the longitudinal cross-section which shows the other form of the conventional container with a lock arm. It is a perspective view which shows one form of the bracket for connector engagement in FIG.

  1 to 5 show an embodiment of a container with a lock arm according to the present invention.

  As shown in FIG. 1, the container with a lock arm is a connector housing (main body) 1 made of synthetic resin, and a lock bar 6 for unlocking the lock wall 4 on the support wall 5 of the lock arm 4 along the outer wall 3 of the connector housing. (Fig. 3) A groove 7 for insertion (guide) of a wide W jig corresponding to the width of (Fig. 3) is provided. As shown in Fig. 2, the groove 7 is an inclined surface having a long gentle slope gradually increasing in height from the inlet 7a side. The lock arm 4 extends rearward on the same surface as the outer surface of the support wall 5, and the lock arm 4 has a steep short inclined surface 8a following the inclined surface 7b and a horizontal following the short inclined surface 8a. It has a short face 8b and a protrusion 9 following the face 8b. As shown in FIGS. 3 to 5, a pair of slide engaging ribs 10 of the connector housing 1 are engaged with the bracket (sub body) 2 and locked. With the arm 4 locked, attach the lock arm 4 Insert the jig rod 6 from the side 7a, it is obtained so as to unlock by bending the lock arm 4 into the deformation space 11 of the bracket 2.

  As shown in FIGS. 1 and 2, the rectangular connector fitting chamber 12 of the connector housing 1 is located in the first half, and on the inner surface of the lower wall portion (outer wall) 3 of the hood portion 13 around the connector fitting chamber 12, A guide rib 14 for a mating connector (not shown) is erected, and a pair of left and right vertical L-shaped slide engagement ribs 10 are provided symmetrically on the outer surface of the lower wall 3, so that a pair of slide members The support wall 5 of the lock arm 4 (FIG. 2) is coupled to the pair of slide engagement ribs 10 so as to be horizontally orthogonal to the same plane as the slide engagement ribs 10 at the longitudinal intermediate portion of the joint rib 10. A lock arm 4 is formed in the center so as to protrude rearward.

  A terminal accommodating portion 16 having a plurality of terminal accommodating chambers 15 (FIG. 3) is located in the second half of the connector housing 1. The terminal housing portion 16 accommodates the latter half of a plurality of male terminals with wires (not shown), the electrical contact portion of the first half of each male terminal protrudes into the connector fitting chamber 12, and at least the connector housing 1 and the terminal. A connector is configured. In the specification, the front, rear, up, down, left, and right directions are for convenience of explanation, and do not always coincide with the mounting direction of the connector (substitute with reference numeral 1).

  Each slide engagement rib 10 includes a vertical portion 10a orthogonal to the lower wall portion 3, a horizontal portion 10b protruding inward from the vertical portion 10a, and a stopper wall 10c at the front end. The support wall 5 is provided on the same plane as the horizontal portions 10b, and connects the horizontal portions 10b in the transverse direction. The width (length in the front-rear direction) of the support wall 5 is approximately the same as the width of the lock arm 4. A groove 7 having a rectangular shape with a wide vertical section is provided in the center of the inner surface of the support wall 5, and the bottom surface 7 b of the groove 7 is gently inclined backward (upward) as shown in FIG. 2.

As shown in the enlarged view in the circle of FIG. 1, the width W of the groove 7 is set to be approximately the same (strictly slightly wider) as the width of the existing jig bar 6 (FIG. 3). The width W of the groove 7 approximates the width of the protrusion 9 of the lock arm 4. When the groove 7 ′ is formed in a narrow width W ₁ like a chain line, the jig bar 6 needs to be formed in a narrow width. The jig bar 6 is formed of a metal material, but preferably has a wide width so that the lock arm 4 loses its elasticity and does not bend when unlocked.

  As shown in FIG. 1, a gap 17 for inserting the bracket 2 (FIG. 3) is provided on the upper side of the support wall 5, and the protrusion 9 of the lock arm 4 is disposed upward in the center of the gap 17 in the width direction. The groove 7 and the protrusion 9 are arranged on the same line in the bracket insertion direction. The width of the protrusion 9 in this example is slightly larger than the width of the groove 7. A space 18 (FIG. 2) for inserting a jig bar is located below the bracket insertion gap 17 and on the front side of the support wall 5, and the space 18 continues to the groove 7.

  As shown in FIG. 2, the groove 7 continues to the steep and short inclined surface 8 a of the lock arm 4, the inclined surface 8 a continues to the short horizontal plane 8 b, and the horizontal plane 8 b continues to intersect the protrusion 9. The horizontal plane 8b is located substantially flush with the upper surfaces 5a of the left and right sides of the support wall 5 where there are no grooves 7. The lock arm 4 protrudes rearward from the rear end of the support wall 5 by the length of the steeply inclined surface 8 a, the horizontal surface 8 b, and the protrusion 9. The protrusion 9 has a locking surface 9a inclined slightly forward from the vertical, a short top surface 9b intersecting the locking surface 9a, and a front inclined surface 9c following the top surface 9b. The pair of left and right slide engagement ribs 10 extend forward from the front end of the support wall 5 and extend rearward from the protrusion 9.

  As shown in FIG. 3, the bracket 2 includes a horizontal substrate portion 19 and guide rails 20 (see FIG. 8) provided on the upper surface of the substrate portion 19. As in the example of FIG. 8, the guide rail 20 has a horizontal slit 21 in the center in the thickness direction from the front end, a rectangular hole portion 22 communicating with the slit 21, and a front end of the plate portion 23 above the slit 21. And a groove edge 26 provided from the front end of the plate portion 25 on the lower side of the slit 21 to the hole portion 22, and a substrate formed substantially at the center inside the hole portion 22. It has an intermediate step portion 27 that continues integrally with the portion 19, and a step portion 28 at the rear end of the hole portion 22.

  With the connector housing 1 slidably fitted back to the bracket 2, the vertical wall 28 a of the stepped portion 28 at the rear end is close to the rear end of the connector housing 1, and the space 29 behind the lock arm 4 is exposed from the outside. Block and close. Compared to the conventional example of FIG. 7, for example, when the length of the terminal accommodating portion 16 of the connector housing 1 is long, or the hole portion 22 of the guide rail 20 is long, and the rear end step portion 28 is arranged far behind. In such a case, the state shown in FIG.

  For this reason, the jig bar 2 for releasing the lock arm cannot be inserted from the rear as in the prior art (FIG. 7), and the jig bar 2 is inserted from the front of the connector housing 1 as shown in FIG. 4 is inserted from the base 7a side. Note that the position of the base 7a indicates the rear end of the support wall 5, but the base of the lock arm 4 protruding from the support wall 5 is actually the lower end position of the steeply inclined surface 8a.

  The vertical wall 27 a of the intermediate step portion 27 is located slightly behind the tip 4 a of the lock arm 4, and the lock arm bending space 11 is formed from the step portion 27 to the upper surface (bottom surface) of the substrate portion 19. The depth H of the bending space 11 (FIG. 5), that is, the vertical distance from the lower surface of the locking edge 24 to the upper surface of the substrate portion 19 is determined by the bending allowance of the lock arm 4 and the thickness T of the jig bar 6 (FIG. 5). It is set larger than the sum.

  In FIG. 3, both end portions in the width direction of the plate portion 23 (FIG. 8) above the slit 21 of the guide rail 20 (FIG. 8) are slidably engaged in horizontal grooves inside the pair of slide engagement ribs 10. The lock arm 4 is inserted into the slit 21 of the guide rail 20 and positioned along the lower surface of the locking edge 24, and the protrusion 9 engages with the hole 22 at the rear of the locking edge 24. The locking surface 9 a is in contact with the rear end surface of the locking edge 24.

  From this state, the jig bar 6 is inserted into the groove 7 of the support wall 5 from the front, and enters along the inclined surface 7 b of the groove 7. Since the support wall 5 is stretched between the pair of slide engagement ribs 10 and is formed to be as thin as the width of the lock arm 4, the intersection between the support wall 5 and the slide engagement ribs 10 is formed. Can be bent integrally with the lock arm 4 (the support wall 5 bends smaller than the lock arm 4 when the lock arm 4 is bent). The protruding length of the lock arm 4 is set to be as short as the width of the support wall 5 (length in the front-rear direction). The support wall 5 acts as a part of the lock arm 4. The lock arm 4 of this example may be referred to as a lock arm main body part integrally projecting from the support wall 5 (the support wall 5 may also be referred to as a lock arm sub-body part).

  Therefore, in FIG. 3, when the jig bar 6 is horizontally inserted between the groove 7 of the support wall 5 and the locking edge 24 of the guide rail 20, the tip of the jig bar 6 is inclined to the groove 7. The lock arm 4 is pushed downward and bent together with the support wall 5 while sliding along the surface 7b.

  By providing the support wall 5 with the groove 7 having the gently inclined surface 7b, the height of the steeply inclined surface 8a of the lock arm 4 is higher than that of the conventional inclined rib 54 of the lock arm 53 (FIG. 6). Accordingly, the jig bar insertion gap (groove) between the locking edge 24 and the lock arm 4 is larger than the conventional jig bar insertion gap 55 of the lock arm 53 (FIG. 6). 7) is set narrow, and the lock structure is made compact.

  Further, as shown in FIG. 4, the downward inclined surface 6 a provided at the tip of the jig bar 6 is in sliding contact with the steep inclined surface 8 a of the lock arm 4, so that the lock arm 4 is further pushed downward to bend, A sharp tip 6 b at the upper end of the inclined surface 6 a of the jig bar 6 is positioned above (upper end) of the locking surface 9 a of the protrusion 9 of the lock arm 4.

  Further, as shown in FIG. 5, when the jig bar 6 is pushed in, the tip 6 b of the jig bar 6 gets over the protrusion 9 of the lock arm 4, and the lower surface 6 c of the jig bar 6 further pushes down the protrusion 9 to lock the lock arm 4. Bend to the maximum to ensure it is unlocked. In FIG. 5, the lower surface of the lock arm 4 and the lower surface of the support wall 5 are linearly connected. However, in actuality, the lock arm 4 is greatly bent and the support wall 5 is small. The line is curvilinear.

  The tip 6 b of the jig bar 6 is positioned substantially above the tip 4 a of the lock arm 4. The bending allowance of the lock arm 4 is a value obtained by subtracting the plate thickness T of the jig bar 6 from the depth H of the bracket 2. Since a vertical stopper plate 6d is provided at the front end of the jig bar 6, the stopper plate 6d abuts against the front end of the connector housing 1 or the front end wall 30 of the bracket 2 in FIG. 6 is blocked.

  The jig bar 6 of this example includes a thin plate portion 6e on the distal end side inserted between the lock arm 4 and the locking edge portion 24 of the guide rail 20, and a thick plate portion positioned in front of the locking edge portion 24. The thin plate portion 6e passes through the step portion on the upper surface side and continues to the thick plate portion 6f, and the lower surface of the jig bar 6 continues on the same surface without a step. A downwardly inclined surface 6a is formed at the tip of the thin plate portion 6e, and the inclined angle of the inclined surface 6a is substantially equal to the inclined angle of the steeply inclined surface 8a of the lock arm 4 as shown in FIG. When the inclined surface 6 a of the jig bar 6 is pressed against the inclined surface 8 a of the lock arm 4, the tip 6 b of the jig bar 6 is positioned at the upper end 9 b of the protrusion 9 of the lock arm 4.

  In FIG. 3, the thin plate portion 6e of the jig bar 6 is smoothly and horizontally pushed between the lock arm 4 and the locking edge portion 24 with a sharp tip 6b and a downward inclined surface 6a following the tip 6b. As a result, the lock arm 4 is pushed down together with the inclined surface 7b of the support wall 5 and bent downward. Also in FIG. 4, it is preferable that the jig bar 6 is inserted horizontally in order to greatly deflect the lock arm 4.

  In the pushed state of the jig bar 6 in FIG. 5, the jig bar 6 is completely sandwiched and held between the lock arm 4 and the locking edge 24. The jig bar 6 is pressed against the locking edge 24 by the restoring force of the lock arm 4. For this reason, since the jig bar 6 does not come out, it is not necessary for the operator to hold the jig bar 6 by hand to prevent the jig bar 6 from being pulled out, and by pulling the connector 1 forward with one hand in the state shown in FIG. 1 is extracted from the bracket 2 together with the jig bar 6 with good workability. In FIG. 5, the tip 6 b of the jig bar 6 is positioned so as to protrude longer rearward than the locking edge 24, so that the tip of the jig bar 6 is connected to the lock arm 4 and the locking edge 24 when the connector 1 is pulled out. The unexpected engagement is surely prevented.

  In the above embodiment, the short lock arm 4 protrudes from the support wall 5, but when the long lock arm (4) protrudes from the support wall 5, the inclined groove 7 of the support wall 5 is provided. The locking arm (4) may be integrally extended, and the gently sloping inclined surface 7b of the groove 7 of the locking arm (4) may be continued to the steeply inclined surface 8a near the protrusion 9 of the locking arm (4).

  In addition, the pair of slide engagement ribs 10 and the lock arm 4 are separated from each other and provided separately or in different directions, and the lock arm 4 is a double wall (not shown) along the outer wall 3 of the connector housing 1. The above-described unlocking structure can also be applied to a case in which they are integrally provided via a substantially U-shaped slit (not shown). In this case, a slanted inclined surface 7b, a steeply inclined surface 8a, and a protrusion 9 are sequentially provided in the longitudinal direction of the lock arm 4, and an intermediate slit in the thickness direction for inserting the lock arm 4 into the bracket 2 (FIG. 8). 21 and a locking hole 22 communicating with the slit 21 are provided.

  Further, the lock arm is not formed in a double wall (not shown), but is substantially L-shaped in a side view in parallel with the outer wall 3 via a support portion (not shown) orthogonal to the outer wall 3 of the connector housing 1. When formed in a shape, it is also possible to form the support part wide and provide a jig rod insertion hole in the support part.

  Moreover, in the said embodiment, although the connector (connector housing) 1 which accommodates a male terminal was used as the container (main body), the connector (not shown) which accommodates a female terminal can also be used as a container (main body). Is possible. In this case, the connector housing (not shown) is provided with a plurality of terminal accommodating chambers from the rear end to the front end, and the slide engagement rib 10 and the lock arm 4 are provided on one outer wall of the connector housing.

  Moreover, in the said embodiment, although the connector (connector housing) 1 was used as the container (main body), it replaced with the connector 1 as a container (main body), for example, the rectangular cage shape made from synthetic resin for wire harness insertion protection is used. Using a protector (not shown), a pair of slide engagement ribs 10, a support wall 5 between them and a lock arm 4 may be provided on the outer wall of the protector and slidably engaged with the sub bracket 2.

  Further, instead of the bracket 2 as a sub-body, for example, an electric junction box main body (not shown) made of synthetic resin is used, and the guide rail 20 similar to that in the bracket 2 is provided in the electric junction box main body, It is also possible to slidably engage the connector 1 or the protector. Also, one electrical connection box main body (not shown) is used as a container (main body), and the other electric connection box main body (not shown) is used as a sub-body, and a slide engagement provided on one electric connection box main body. It is also possible to configure a split-type electrical junction box by slidingly engaging the rib 10, the lock arm 4 and the like with a guide rail 20 provided on the other electrical junction box body.

  The container with a lock arm according to the present invention is applied when the jig bar for unlocking cannot be inserted from the distal end side of the lock arm, for example, in unlocking the connector and the bracket or unlocking the protector and the bracket. can do.

1 Connector housing (container)
2 Bracket 4 Lock arm (main part of lock arm)
4a Tip 5 Support wall 6 Jig rod 7 Groove 7b Slope with long gentle slope 8a Slope with short steep slope 9 Protrusion 10 Slide engagement portion 11 Lock arm deflection space 24 Locking edge W width

Claims (4)

A flexible lock arm having an inward projection on the distal end side, and a groove into which a jig bar can be inserted from the base side of the lock arm is formed in the lock arm, and the groove is formed on the bottom side of the base. A long inclined surface having a long gentle slope formed from the side to the longitudinal intermediate portion of the lock arm, and a short steep slope formed by inclining toward the tip of the locking surface of the projection following the long inclined surface. It possesses an inclined plane, the locking arm with the housing body, characterized in that following the locking surface the short inclined plane via a short true face.   A pair of slide engaging portions are disposed on both sides of the lock arm, and the lock arm includes a flexible support wall connecting the pair of slide engaging portions, and a lock arm protruding from the support wall. The container with a lock arm according to claim 1, further comprising a main body, wherein the groove is provided in the support wall.   The container with a lock arm according to claim 1 or 2, wherein the width of the groove is set to be wide enough to approximate the width of the protrusion of the lock arm.   The container is a connector housing, and the connector housing is disposed to face a bracket having a locking edge for engaging the protrusion of the lock arm and a lock arm bending space, and from the base side of the lock arm. The container with a lock arm according to any one of claims 1 to 3, wherein a jig bar can be inserted between the engaging edge and the protrusion along the groove.

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