JP2015222665A - Release jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance workability when unlocking a connector housing and a mounting member.SOLUTION: A plurality of locking parts are provided in a connector housing 60. A plurality of lock pieces 83, 84 capable of locking with the locking parts 74, 79, respectively, are provided in a mounting member. A release jig 10 includes release portions 12, 13 which abut against the plurality of lock pieces 83, 84 along with the attachment operation to the connector housing 60, and elastically deform these lock pieces 83, 84, all at once, in the unlocking direction from the locking parts 74, 79, and a fixed portion 14 to be locked with a part of the connector housing 60 and fixed in place, when being attached thereto.

Description

  The present invention relates to a releasing jig for releasing locking between a connector housing and a mounting member.

  Patent Document 1 discloses a connector including first and second housings that can be fitted to each other. The second housing is provided with a plurality of housing-side fitting lock portions. A rear holder (mounting member) is mounted on the second housing. The rear holder is provided with a plurality of holder-side fitting lock portions so as to bend. The rear holder is held by the second housing by elastically locking the housing side fitting lock part and the holder side fitting lock part.

  On the other hand, when the release jig comes into contact with the holder-side fitting lock portion while the rear holder is held by the second housing, the holder-side fitting lock portion is elastically deformed in the locking release direction. Accordingly, the engagement between the housing-side fitting lock portion and the holder-side fitting lock portion is released, and the rear holder can be pulled away from the second housing.

JP 2010-10014 A

  By the way, in the above case, when releasing the engagement between the holder-side fitting lock portion and the housing-side fitting lock portion, the release jig is individually engaged with each holder-side fitting lock portion. There was a situation that workability was not always good because it had to be made. In addition, since the holder side fitting lock part tries to return to the original locked state by its elastic restoring force, until the rear holder is pulled away from the housing, against the elastic restoring force of the holder side fitting lock part, There was also a situation that the state where the jig was brought into contact with the holder-side fitting lock portion had to be maintained.

  The present invention has been completed based on the above-described circumstances, and an object thereof is to improve workability when releasing the locking between the connector housing and the mounting member.

  The present invention provides a connector housing and a mounting member attached to the connector housing, wherein either one of the plurality of lock pieces is flexibly provided, and the other is provided with a plurality of lock portions. A release jig applied to a connector in which the mounting member is held by the connector housing by elastically locking the pieces to the corresponding lock portions, the connector housing A release portion that comes into contact with the plurality of lock pieces in association with the attachment operation and elastically deforms the lock pieces all at once in a direction of releasing the engagement with the lock portion, and the connector when attached to the connector housing It has a feature in that it includes a fixing portion that is locked and fixed to a part of the housing.

  As the release jig is attached to the connector housing, the release portion comes into contact with a plurality of lock pieces, and each lock piece is elastically deformed all at once in the direction of releasing the locking with the lock portion. There is no need to elastically deform each lock piece individually. In addition, when the release jig is attached to the connector housing, the fixing portion is locked and fixed to a part of the connector housing. Therefore, while the release portion contacts each lock piece, The unlocked state is maintained well. Therefore, according to the release jig of the present invention, it is possible to improve workability when releasing the locking between the connector housing and the mounting member.

In the Example of this invention, it is the figure which looked at the state in which the cancellation | release jig | tool was attached to the connector housing from the back surface of the connector housing. It is the sectional view on the AA line of FIG. It is the BB sectional view taken on the line of FIG. It is the figure which looked at the state where the releasing jig was attached to the connector housing from the upper part of the connector housing. It is the figure which looked at the state where the releasing jig was attached to the connector housing from the lower part of the connector housing. It is the figure which looked at the connector housing with which the rear holder was mounted | worn from the back surface. It is the figure which looked at the connector housing with which the rear holder was mounted | worn from the front. It is the figure which looked at the connector housing with which the rear holder was mounted | worn from the upper direction. It is the figure which looked at the connector housing with which the rear holder was mounted | worn from the downward direction. It is the figure which looked at the cancellation | release jig | tool from the front. It is the figure which looked at the cancellation | release jig | tool from the side surface. It is the figure which looked at the cancellation | release jig | tool from the upper direction. It is the figure which looked at the cancellation | release jig | tool from the downward direction.

Preferred embodiments of the present invention are shown below.
A part of the connector housing is formed by a lock protrusion that can be locked to a bracket to which the connector is coupled. According to this, it is not necessary to newly provide a portion that is locked and fixed to the fixing portion of the release jig in the connector housing, and the configuration of the connector housing can be simplified.

  The release portion is provided with a guide portion slidably fitted to a rail portion provided on the outer surface of the connector housing in the process of attaching to the connector housing. According to this, the stability of the operation of attaching the release jig to the connector housing is ensured.

  The release portion and the fixing portion are provided so as to protrude from the main body portion, and the main body portion is provided with a finger hook portion capable of hooking a finger. According to this, since the release jig can be attached to the connector housing while the finger is hooked on the finger hook portion, when the release load is applied to the release jig, the finger is on the surface of the release jig. Slipping is prevented. As a result, the release operation can be easily performed.

<Example>
An embodiment of the present invention will be described with reference to FIGS. The release jig 10 of the present embodiment is configured as a jig for releasing the engagement between the connector housing 60 and a mounting member (a rear holder 80 described later) attached to the connector housing 60. The release jig 10 is attached to the connector housing 60. In the following description, in the front-rear direction, the side where the connector housing 60 and the release jig 10 face each other when the attachment of the release jig 10 to the connector housing 60 is started is the front side. The vertical direction is based on FIGS. 1 to 3, 6, 7, 10, and 11. And the width direction is synonymous with the left-right direction of FIG.1, FIG.6, FIG.7 and FIG.

First, the structure of the connector housing 60 and the rear holder 80 will be described.
The connector housing 60 is made of synthetic resin and has a cylindrical housing body 61 that opens rearward as shown in FIGS. 2 and 3. A bus bar mounting portion 58 is provided at the front end of the housing body 61. A bus bar 65 is mounted on the bus bar mounting portion 58 by press-fitting or insert. The bus bar 65 has a plurality of tab pieces 64. When the bus bar 65 is mounted on the bus bar mounting portion 58, the tab pieces 64 are arranged so as to protrude from the bus bar mounting portion 58 into a cavity 63 described later.

  A mating connector housing 62 is fitted in the connector housing 60. The mating connector housing 62 is provided with a plurality of cavities 63 extending forward and backward. On the lower surface of the inner wall of each cavity 63, a lance 66 is provided so as to protrude forward. The lance 66 can be bent and deformed. A terminal fitting 67 is inserted into the cavity 63 from behind. The terminal fitting 67 that is normally inserted into the cavity 63 is elastically locked by the lance 66. Thereby, the terminal fitting 67 is prevented from being detached from the cavity 63.

  The terminal fitting 67 has a cylindrical box portion 68 and a barrel portion 69 connected to the rear of the box portion 68. When the terminal fitting 67 is properly inserted into the cavity 63, the tab piece 64 of the bus bar 65 is inserted into the box portion 68. As a result, the terminal fitting 67 is electrically connected to the bus bar 65. Further, the barrel portion 69 is electrically and mechanically connected to the terminal portion of the electric wire 70.

  On the other hand, as shown in FIGS. 7 and 8, a locking projection 71 is provided at a substantially central portion in the width direction of the upper surface of the housing body 61. In addition, a pair of rail portions 72 are provided so as to protrude on both sides in the width direction across the locking projection 71 on the upper surface of the housing body 61. Both rail parts 72 are made into the form extended in the front-back direction. As shown in FIG. 7, guide grooves 73 are provided on the opposing surfaces (inner surfaces) of the rail portions 72 so as to extend in the front-rear direction. A plate-shaped panel (not shown) is slid and mounted between the rail portions 72. The panel is locked in a retaining state by a locking projection 71 in a state where it is mounted between the rail portions 72.

  Further, as shown in FIG. 8, a pair of first lock portions 74 are provided on the upper surface of the housing body 61 so as to protrude. Both the first lock portions 74 are disposed at the rear end portion of the upper surface of the housing main body 61 and between the rail portions 72 in the width direction. Both the first lock portions 74 have a claw shape and are arranged adjacent to each other in the width direction.

  As shown in FIGS. 3, 7, and 9, a bracket mounting portion 75 protrudes from the lower surface of the housing body 61. The bracket mounting portion 75 has a flat gate shape and has a bracket insertion groove 76 penetrating in the front-rear direction as shown in FIG. Of the bracket mounting portion 75, an outer wall that covers the outer side (the lower side in the drawing) of the bracket insertion groove 76 is provided with a lock projection 77 that projects from the inner surface to the bracket insertion groove 76. The outer wall of the bracket mounting portion 75 is provided with a pair of slits 78 on both sides of the lock protrusion 77 (see FIG. 5). Of the outer wall of the bracket mounting portion 75, the portion having the lock projection 77 between the slits 78 can be bent and deformed.

  A plate-shaped bracket to be attached (not shown) is inserted into the bracket insertion groove 76 of the bracket mounting portion 75. When the bracket is inserted into the bracket insertion groove 76, a lock portion (not shown) of the bracket is elastically locked to the lock protrusion 77. Thus, the connector housing 60 is attached to the bracket.

  Further, as shown in FIG. 9, a pair of second lock portions 79 protrude from the lower surface of the housing main body 61. Both the second lock portions 79 are arranged at the rear end portion of the lower surface of the connector housing 60 and on both sides of the bracket mounting portion 75 in the width direction. The second lock portion 79 has a claw shape and has substantially the same shape as the first lock portion 74.

  Incidentally, a seal member 50 is attached to the rear surface of the mating connector housing 62. Although not shown in detail, the seal member 50 is held by the mating connector housing 62 via a pair of holding pieces 59 (see FIG. 6) that protrude rearward from the mating connector housing 62. The seal member 50 is inserted into the housing body 61 together with the mating connector housing 62. Specifically, the seal member 50 is made of rubber such as silicon rubber and has a plurality of seal holes 51 as shown in FIG. When the seal member 50 is inserted into the housing main body 61, the seal holes 51 are arranged in communication with the cavities 63. An electric wire 70 is inserted into each seal hole 51 of the seal member 50 in a liquid-tight manner. Further, the seal member 50 is elastically adhered to the inner peripheral surface of the housing body 61. Therefore, the seal around the electric wire 70 and the inside of the housing main body 61 can be taken via the seal member 50.

  The mounting member is configured as a rear holder 80 mounted on the rear end portion of the housing body 61. The rear holder 80 is made of synthetic resin and has a plate-like holder body 81 that is long in the width direction as shown in FIG.

  As shown in FIGS. 2 and 3, when the rear holder 80 is mounted on the housing main body 61, the holder main body 81 enters the housing main body 61 and is disposed so as to be in contact with the rear surface of the seal member 50. As a result, the seal member 50 and the mating connector housing 62 are prevented from coming out rearward from the housing body 61.

  As shown in FIG. 6, the holder main body 81 has a plurality of through holes 82. When the rear holder 80 is attached to the connector housing 60, the through holes 82 are arranged to communicate with the seal holes 51. Here, the terminal fitting 67 is inserted into the cavity 63 from the through hole 82 through the seal hole 51. When the terminal fitting 67 is properly inserted into the cavity 63, the electric wire 70 is loosely fitted into the through hole 82.

  On the outer peripheral surface of the rear part of the holder main body 81, a plurality of lock pieces 83, 84 are provided so as to protrude. As shown in FIG. 2, each lock piece 83, 84 is configured to protrude forward from the outer peripheral surface of the rear portion of the holder body 81 once. As shown in FIG. 6, each lock piece 83, 84 has a first lock piece 83 provided at a substantially central portion in the width direction on the upper surface of the holder main body 81 and a pair provided at both ends in the width direction on the lower surface of the holder main body 81. The second lock piece 84.

  As shown in FIGS. 6 and 8, the first lock piece 83 is provided with a pair of first lock holes 85 penetrating therethrough. Both the first lock holes 85 are arranged side by side in the width direction. On the other hand, as shown in FIGS. 5 and 6, the second lock holes 86 are individually provided through the second lock pieces 84.

  In the process in which the rear holder 80 is mounted on the housing body 61, the first lock piece 83 interferes with both first lock portions 74 of the housing body 61, and the first lock piece 83 is elastically deformed upward. Similarly, both the second lock pieces 84 interfere with both the second lock portions 79 of the housing main body 61, and both the second lock pieces 84 are elastically deformed downward.

  Thereafter, when the rear holder 80 is mounted on the housing main body 61, the first lock piece 83 is elastically restored, and the first lock portions 74 respectively corresponding to the first lock holes 85 of the first lock piece 83 are provided. Fit. Similarly, the second lock pieces 84 are elastically restored, and the corresponding second lock portions 79 are fitted into the second lock holes 86 of the second lock pieces 84. As a result, the rear holder 80 is held in a state where the rear body 80 is restricted from being detached from the housing body 61. Further, as the rear holder 80 is held by the housing body 61, the mating connector housing 62 and the connector housing 60 are held in a fitted state.

  Next, the structure of the release jig 10 will be described. The release jig 10 is made of synthetic resin, and as shown in FIGS. 10 to 13, as shown in FIG. It has the release parts 12 and 13 and the fixing | fixed part 14 similarly projected ahead from the front surface of the main-body part 11. As shown in FIG.

  As shown in FIGS. 10 and 11, a pair of finger hooks 15 protrude in opposite directions (up and down directions) from each other in the approximate center in the width direction of the upper and lower end faces of the main body 11. Both finger-hanging portions 15 have a substantially rectangular plate wall shape in front. And as shown in FIG. 11, both the finger | toe hook parts 15 become a form which increases front-back thickness gradually toward a protrusion end. Specifically, the front surface of both finger-hanging portions 15 is a slope 16 that is inclined forward toward the protruding end.

As shown in FIG. 10, a bottomed recess 17 is provided on the front surface of the main body 11. The concave portion 17 is provided in a wide range in a portion excluding the peripheral edge portion 18 on the front surface of the main body portion 11.
As shown in FIG. 10, the plurality of release portions 12 and 13 include a first release portion 12 provided at a substantially central portion in the width direction of the upper end portion of the peripheral edge portion 18 on the front surface of the main body portion 11, and the width of the lower end portion. It consists of a pair of 2nd cancellation | release part 13 provided in a direction both ends.

  As shown in FIG. 10 to FIG. 13, the first release portion 12 is provided at the lower end edge of the front end surface of the first protrusion 19 and the first protrusion 19 having a substantially prismatic shape protruding forward from the front surface of the main body 11. It has a pair of 1st cancellation | release main bodies 21 which protrude ahead from the width direction both ends. A pair of guide portions 22 are provided at the lower end edges of both end surfaces in the width direction of the first projecting portion 19. Both guide portions 22 are in the form of ribs extending in the front-rear direction. The two guide portions 22 are arranged such that the rear ends thereof are integrally connected to the front surface of the main body portion 11, and the front ends are located behind the front ends of the first projecting portions 19. As shown in FIG. 13, a relief groove 23 is formed in the lower surface of the first protrusion 19. The escape groove 23 is configured to extend in the front-rear direction and open to a substantially central portion in the width direction of the front end of the first protrusion 19 (between both first release bodies 21).

  As shown in FIG. 10, both the 1st cancellation | release main bodies 21 have comprised the thin plate shape along the width direction. Moreover, the 1st inclination protrusion 24 protrudes ahead in the width direction outer side of the front end of both the 1st cancellation | release main bodies 21, respectively. As shown in FIG. 11, a first tapered surface 25 that is inclined upward is provided on the front surface of the first inclined protrusion 24.

  As shown in FIGS. 11 to 13, the front and rear lengths of both the second release portions 13 (the amount of protrusion from the front surface of the main body portion 11) are substantially the same as the front and rear lengths of the first release portions 12. As shown in FIGS. 10, 12, and 13, the width of each of the second release portions 13 is smaller than the width of the first release portion 12. As shown in FIGS. 10 to 13, both the second release portions 13 include a substantially rectangular tube-shaped second protrusion 26 protruding forward from the front surface of the main body 11, and a front end surface of the second protrusion 26. And a second release body 27 that protrudes forward from the upper end edge. The 2nd cancellation | release main body 27 has comprised the thin plate shape along the width direction. Further, as shown in FIGS. 10 and 13, a pair of second inclined protrusions 28 are provided to protrude forward at both ends in the width direction of the front end of the second release main body 27. As shown in FIG. 11, a second tapered surface 29 that is inclined downward is provided on the front surface of the second inclined protrusion 28.

  As shown in FIGS. 10 and 13, the fixing portion 14 has a thin plate shape along the width direction. And the fixing | fixed part 14 can be bent and deformed by using the base end part connected with the front surface of the main-body part 11 as a fulcrum. Moreover, the fixing | fixed part 14 is arrange | positioned between both the 2nd cancellation | release parts 13, and as shown in FIG. The width dimension of the fixing part 14 is smaller than the width dimension of the first release part 12 and larger than the width dimension of the second release part 13. As shown in FIG. 13, the fixing portion 14 is provided with a fixing hole 30 penetrating substantially rectangular in a bottom view.

Next, a method of using the release jig 10 of this embodiment will be described.
As described above, when the rear holder 80 is attached to the housing body 61 of the connector housing 60, the first lock piece 83 is elastically locked to the first lock portion 74, and both the second lock pieces 84 are The two second lock portions 79 are elastically locked.

  Thereafter, when it is necessary to remove the mating connector housing 62 from the connector housing 60 due to maintenance or the like, the release jig 10 of this embodiment is used. In use, first, the guide portions 22 of the release jig 10 are fitted into the guide grooves 73 of the rail portions 72 of the connector housing 60 from the state in which the main body portion 11 of the release jig 10 faces the front surface of the connector housing 60. Inserted in the state. Further, the release jig 10 is pushed toward the rear end side of the connector housing 60. Then, both guide portions 22 slide in the guide grooves 73 of both rail portions 72, and the release jig 10 is smoothly slid and moved to the connector housing 60 (see FIG. 4). When the release jig 10 is slid and moved, the fixing portion 14 of the release jig 10 is inserted into the bracket insertion groove 76 of the bracket mounting portion 75 of the connector housing 60. In the movement process of the release jig 10, the locking projection 71 of the connector housing 60 enters between the first release main bodies 21 of the first release portion 12 and the escape groove 23, and the locking projection 71 and the first Interference with the release unit 12 is avoided (see FIGS. 3 and 4).

  When the release jig 10 is properly attached to the connector housing 60, the front end portion of the connector housing 60 enters the recess 17 in a fitted state (see FIGS. 1 to 3). Moreover, both the 1st inclination protrusions 24 of the 1st cancellation | release part 12 of the cancellation | release jig | tool 10 approach so that it may divide between the front-end part of the 1st lock piece 83, and the upper surface of the housing main body 61 (refer FIG. 2). . Then, the front end of the first lock piece 83 slides on the first tapered surface 25 of the first inclined protrusion 24, and the first lock piece 83 is elastic upward (in the direction of releasing the engagement with the first lock portion 74). Can be flexibly deformed.

  The second inclined protrusions 28 of both the second release portions 13 of the release jig 10 are moved to the front end portions of the second lock pieces 84 at substantially the same timing when the first release portion 12 contacts the first lock piece 83. And the lower surface of the housing body 61 (see FIG. 3). Then, the front ends of the second lock pieces 84 slide on the second tapered surfaces 29 of the second inclined projections 28, and both the second lock pieces 84 move downward (in the direction in which the engagement with the second lock portion 79 is released). ) Is elastically bent and deformed. Thus, the first lock piece 83 and the first lock portion 74 are unlocked by the first release portion 12, and at the same time, the second lock pieces 84 and the second lock portions 79 are locked. 2 is released by the release unit 13.

  When the release jig 10 is properly attached to the connector housing 60, the lock projection 77 of the bracket mounting portion 75 is elastically fitted into the fixing hole 30 of the fixing portion 14 (see FIG. 3). For this reason, the release jig 10 is prevented from being pushed back by the elastic restoring force of the lock pieces 83 and 84. Therefore, the rear holder 80 is removed from the connector housing 60 in a state where the fixing portion 14 is locked to the lock protrusion 77 and the lock pieces 83 and 84 are released from the lock portions 74 and 79 and elastically deformed. The mating connector housing 62 can be easily detached from the connector housing 60 by pulling apart. Thereafter, the release jig 10 can be removed from the connector housing 60 by forcibly releasing the locking between the fixing portion 14 and the lock protrusion 77. In addition, when performing the movement operation of the release jig | tool 10 mentioned above, an operator's finger | toe is latched by the both finger | toe holding part 15. FIG. In particular, in the case of the present embodiment, when the lock pieces 83 and 84 are elastically deformed until the fixing portion 14 is locked to the lock protrusion 77, the direction in which the lock is released from the connector housing 60 to the release jig 10. Therefore, the merit of supporting the both finger rests 15 with the fingers against the separation force is great.

  As described above, according to the present embodiment, with the operation of attaching the release jig 10 to the connector housing 60, the release portions 12 and 13 come into contact with the lock pieces 83 and 84, and the lock pieces 83, Since 84 is elastically deformed all at once in the direction of releasing the engagement with the lock portions 74 and 79, it is not necessary to individually elastically deform the lock pieces 83 and 84 by the release portions 12 and 13. Further, when the release jig 10 is attached to the connector housing 60, the fixing portion 14 is elastically locked and fixed to the lock protrusion 77 of the bracket mounting portion 75 of the connector housing 60. Is in good contact with the lock pieces 83 and 84, the unlocked state of the lock pieces 83 and 84 and the lock portions 74 and 79 is maintained well. Therefore, according to the release jig 10 of the present embodiment, it is possible to improve workability when releasing the locking between the connector housing 60 and the rear holder 80.

  Further, in the process in which the release jig 10 is attached to the connector housing 60, since both the guide portions 22 are slidably fitted to the both rail portions 72, the operation of attaching the release jig 10 to the rear holder 80 is stable. Secured.

  Further, since the release jig 10 can be attached to the connector housing 60 while the operator's fingers are hooked on the both finger hooks 15, when the release load is applied to the release jig 10, the operator Are prevented from sliding on the surface of the release jig 10. As a result, the release work by the release jig 10 can be easily and stably performed.

<Other embodiments>
Hereinafter, other embodiments of the present invention will be briefly described.
(1) Contrary to the above-described embodiment, a deflectable lock piece may be provided in the connector housing, and a lock portion may be provided in the mounting member (rear holder).
(2) The mounting member mounted on the connector housing may be a retainer. Further, when the member corresponding to the rear holder of the present embodiment is not provided, the mounting member mounted on the connector housing may be a mating connector housing for mating.
(3) The timing at which each release portion comes into contact with each lock piece and each lock piece is elastically deformed in a direction to release the engagement with each lock portion does not necessarily have to be exactly the same timing.
(4) The fixing portion may be configured to be locked and fixed to a portion of the connector housing other than the lock protrusion of the bracket mounting portion. In this case, it is preferable that the portion locked and fixed to the fixing portion has an existing structure in the connector housing because the configuration of the connector housing can be simplified.
(5) The release portion may be composed of one portion that can be brought into contact with a plurality of lock pieces at a time without being provided independently.

DESCRIPTION OF SYMBOLS 10 ... Release jig 11 ... Main-body part 12 ... 1st release part (release part)
13 ... 2nd cancellation | release part (release part)
DESCRIPTION OF SYMBOLS 14 ... Fixed part 15 ... Finger hook part 22 ... Guide part 60 ... Connector housing 62 ... Counterpart connector housing 72 ... Rail part 74 ... 1st lock part (lock part)
77 ... Lock projection 79 ... Second lock part (lock part)
80 ... Rear holder (mounting member)
83. First lock piece (lock piece)
84 ... Second lock piece (lock piece)

Claims (4)

Among the connector housing and the mounting member to be mounted on the connector housing, a plurality of lock pieces are flexibly provided on one of the connector housings, and a plurality of lock portions are provided on the other side. A release jig applied to a connector adapted to be held by the connector housing by being elastically locked to the lock portion;
A release portion that abuts the plurality of lock pieces in accordance with the mounting operation to the connector housing, and elastically deforms the lock pieces all at once in a direction of releasing the locking with the lock portion;
A release jig, comprising: a fixing portion that is locked and fixed to a part of the connector housing at the time of attachment to the connector housing.   The release jig according to claim 1, wherein a part of the connector housing is configured by a lock protrusion that can be engaged with a bracket to which the connector is coupled.   2. The release portion is provided with a guide portion slidably fitted to a rail portion provided on an outer surface of the connector housing in the process of attaching to the connector housing. 2. The release jig according to 2.   4. The release portion and the fixing portion are provided so as to protrude from a main body portion, and the main body portion is provided with a finger hooking portion capable of hooking a finger. The release jig according to any one of the above.

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