JP6014464B2 - Packing mounting structure and connector - Google Patents

Description

  The present invention relates to a packing mounting structure and a connector.

  To prevent water from entering the terminal insertion hole formed in the housing, insert the waterproof plug and the tip of the terminal insertion jig into the terminal insertion hole while holding the waterproof plug at the tip of the insertion jig. The technology of attaching the waterproof plug to the terminal insertion hole by positioning the waterproof plug at a predetermined depth of the terminal insertion hole by bringing the step provided on the side surface of the tip portion into contact with the housing. It is known (for example, refer to Patent Document 1).

JP-A-8-236247

  First, the problem in the packing mounting structure shown as a reference example will be described with reference to FIGS.

  9 is an exploded perspective view showing a connector 6 according to a reference example provided with an annular packing 5, FIG. 10 is a transverse sectional view showing a connector 6 according to a reference example provided with an annular packing 5, and FIG. FIG. 6 is a perspective view of a jig 7 used when attaching a packing 5 to a housing 4. FIG. 12 is an explanatory view for explaining the process of attaching the packing 5 to the housing 4. FIGS. 12 (a) to 12 (c) are cross-sectional views of the housing 4, the packing 5 and the jig 7, respectively. is there. FIG. 13 is a transverse sectional view of the jig 7 holding the packing 5.

  As shown in FIGS. 9 and 10, in the connector 6 according to the reference example, the terminal 1 is inserted from the rear end side, and the housing 4 having the terminal accommodating cylinder portion 3 to which the retainer 2 is attached from the front end side is provided with an annular shape. Packing 5 is assembled, and this packing 5 waterproofs the connection location with the counterpart connector (not shown). In this connector 6, unlike Patent Document 1, the packing 5 is attached to the housing 4 by a jig 7 having an annular portion shown in FIG. 11.

  Specifically, as shown in FIG. 12A, the tip end side of the annular packing 5 is fitted inside the annular jig 7. Then, as shown in FIG. 12 (b), the rib 7 b formed on the flange portion 5 a is inserted into the housing 4 from the front end side and protrudes to the outer peripheral side at the rear end of the packing 5. The lock arm 4 a formed on the housing 4 is engaged. Thereafter, the jig 7 is extracted from the housing 4 as shown in FIG. In this manner, the packing 5 is assembled to the housing 4 by the ribs 5b formed on the collar portion 5a being engaged with the lock arm 4a of the housing 4.

  However, when the annular packing 5 is attached to the housing 4 by the annular jig 7 as described above, the jig 7 is inserted into the housing 4 with the packing 5 fitted therein, and thus the packing 5 The inventor of the present application recognizes that slack may occur. That is, as shown in FIG. 13, the packing 5 may be deformed so as to fall inward (in the direction of arrow A in FIG. 13), which is a direction intersecting the insertion direction into the housing 4. In this case, when the packing 5 is inserted into the housing 4, the posture of the packing 5 held by the jig 7 is broken, and there is a possibility that the packing 5 and the housing 4 are stuck. If this sticking occurs, the packing 5 may not be properly attached to the housing 4, and the waterproofness at the connection point with the counterpart connector may be impaired.

  This invention is made | formed in view of the situation mentioned above, The objective is to provide the packing mounting structure and connector which can ensure favorable waterproofness.

In order to achieve the above-described object, the packing mounting structure according to the present invention is characterized by the following (1) to (3).
(1) A housing having a cylindrical terminal accommodating cylinder portion that accommodates a terminal, and a cylindrical hood portion formed so as to cover the outer periphery of the terminal accommodating cylinder portion;
An annular packing that is inserted into the housing from the front end side between the terminal accommodating cylinder and the hood, and is attached in close contact with the outer periphery of the terminal accommodating cylinder.
Rear end surface has a jig main body part cylinder shape formed in an annular shape corresponding to the shape of the packing, at least a portion of the jig main body portion, said housing in a state in which the packing is in contact with the rear end face A jig for attaching the packing to the terminal accommodating cylinder by being inserted inside;
A packing mounting structure comprising:
The packing includes an annular packing main body portion, and a collar portion protruding to the outer peripheral side in the circumferential direction at the rear end portion of the packing main body portion,
On the inner peripheral surface at a predetermined position in the front-rear direction of the jig body part, a step part facing the opening on the rear end side of the jig body part is formed over the circumferential direction,
A locking part is formed on the rear end surface of the jig body part,
A locked portion that is locked to the locking portion is formed on the front end surface of the collar portion,
A state in which the front end surface of the packing main body portion is in contact with the stepped portion, the locked portion is locked in the locking portion, and the rear end surface of the jig main body portion is in contact with the front end surface of the collar portion. Then, by inserting the jig main body into the housing, the packing is attached to the terminal accommodating cylinder.
about.
(2) A packing mounting structure configured as described in (1) above,
The locking portion is a convex portion projecting rearwardly from the end plane of the jig main body portion,
The locked portion is a recess formed on the front end surface of the collar portion and fitted with the projection.
about.
(3) A packing mounting structure configured as described in (1) or (2) above,
The end plane of the jig main body portion, the locking portion is formed with a plurality,
On the front end surface of the collar portion , a plurality of the locked portions to which the locking portions are respectively locked are formed.
about.

In the packing mounting structure having the above configuration (1), even when the annular packing is mounted on the housing by the annular jig, the locking portion formed on the end surface of the main body of the jig is not covered by the packing. Since the packing is inserted into the housing from between the terminal accommodating cylinder portion and the hood portion while being locked to the locking portion, occurrence of a situation in which the packing is slackened and the packing falls is suppressed. That is, since the posture of the packing held by the jig is stabilized, the packing is easily attached correctly to the housing. Therefore, according to the packing mounting structure having the above configuration (1), it is possible to ensure good waterproofness of the connecting portion by the packing when connected to the counterpart connector. In addition, workability when the packing is mounted on the housing can be improved.
In the packing mounting structure having the above configuration (2), the locking portion made of a convex portion is inserted into and fitted to the locked portion made of a concave portion, so that the packing is easily held by a jig. For this reason, generation | occurrence | production of the slack of packing is easy to be suppressed.
In the packing mounting structure having the configuration of (3) above, since the plurality of locking portions and the locked portions are engaged, compared with the case where the single locking portion and the locked portion are engaged. The packing is easily held by the jig. For this reason, generation | occurrence | production of the slack of packing is easy to be suppressed.

  ADVANTAGE OF THE INVENTION According to this invention, the packing mounting structure and connector which can ensure favorable waterproofness can be provided.

  The present invention has been briefly described above. Further, details of the present invention will be further clarified by reading through the modes for carrying out the invention described below with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view of a connector 10 according to the embodiment. FIG. 2 is a cross-sectional view of the connector 10 according to the embodiment. FIG. 3 is a longitudinal sectional view of the connector 10 according to the embodiment. FIG. 4 is a perspective view of the packing 11. FIG. 5 is an explanatory view for explaining the retainer 20 mounted on the housing 21. FIG. 5 (a) is a longitudinal sectional view showing the connector 10 in which the retainer 20 is temporarily locked, and FIG. ) Is a longitudinal cross-sectional view showing the connector 10 in which the retainer 20 is in a fully locked state. FIG. 6 is a perspective view of a jig 51 used when the packing 11 is attached to the housing 21. FIG. 7 is an explanatory diagram for explaining a process of mounting the packing 11 to the housing 21, and FIGS. 7A to 7C are cross-sectional views of the housing 21, the packing 11, and the jig 51, respectively. is there. FIG. 8 is an enlarged view of part A in FIG. FIG. 9 is an exploded perspective view showing a connector 6 according to a reference example provided with an annular packing 5. FIG. 10 is a cross-sectional view showing a connector 6 according to a reference example provided with an annular packing 5. FIG. 11 is a perspective view of the jig 7 used when the packing 5 is attached to the housing 4. FIG. 12 is an explanatory view for explaining the process of attaching the packing 5 to the housing 4. FIGS. 12 (a) to 12 (c) are cross-sectional views of the housing 4, the packing 5 and the jig 7, respectively. is there. FIG. 13 is a transverse sectional view of the jig 7 holding the packing 5.

  Specific embodiments of the packing mounting structure and connector according to the present invention will be described below with reference to the drawings.

1 is an exploded perspective view of a connector 10 according to the embodiment, FIG. 2 is a transverse sectional view of the connector 10 according to the embodiment, FIG. 3 is a longitudinal sectional view of the connector 10 according to the embodiment, and FIG. 11 is a perspective view of FIG. FIG. 5 is an explanatory view for explaining the retainer 20 mounted on the housing 21. FIG. 5 (a) is a longitudinal sectional view showing the connector 10 in which the retainer 20 is temporarily locked, and FIG. ) Is a longitudinal cross-sectional view showing the connector 10 in which the retainer 20 is in a fully locked state.
Hereinafter, in the present specification, the front side, the rear side, the upper side, the lower side, the left side, and the right side are defined and described as indicated by arrows in FIGS.

  As shown in FIGS. 1 to 3, the connector 10 according to this embodiment includes a packing 11 and a housing 21 to which the packing 11 is inserted and attached. The packing 11 is inserted and attached to the housing 21 from the front end side (front end side) of the housing 21.

  In the connector 10, a terminal 25 to which an electric wire 37 is connected from the rear end side of the housing 21 is inserted and accommodated. Further, the retainer 20 is attached to the connector 10 from the front end side of the housing 21.

  As shown in FIG. 4, the packing 11 is a member formed of a resin material having excellent elasticity such as rubber, and has a packing main body portion 12 and a collar portion 13.

  The packing main body 12 is formed in an annular shape having a rectangular shape when viewed from the front. Moreover, the packing main-body part 12 has the lip | rip part 16 which protrudes to the outer peripheral side over the circumferential direction in the vicinity of the front-end | tip part.

  The collar portion 13 is formed at the rear end portion that is the end portion on the housing 21 side of the packing main body portion 12 when inserted into the housing 21 so as to protrude to the outer peripheral side in the circumferential direction. The flange portion 13 is formed with ribs 18 protruding outward on the left and right side portions thereof.

  In the packing 11, a plurality of concave portions (locked portions) 15 are formed at a boundary portion between the flange portion 13 and the packing main body portion 12. The concave portion 15 is formed by a part of the front end surface of the collar portion 13 being bored, and the front end side of the packing 11 is opened. Each of these recesses 15 is formed at the center in the vertical direction on both the left and right sides of the packing 11, and two are formed at each of the upper part and the lower part of the packing 11.

  As shown in FIGS. 1 to 3, the housing 21 is a member molded from a resin such as plastic, for example, and the packing 11 is inserted and attached from the front end side. The housing 21 includes a housing body 22 having a hood portion 22a formed in a cylindrical shape. A cylindrical terminal accommodating cylinder portion 23 is provided inside the housing main body portion 22.

  A plurality of cavities 24 are formed inside the terminal accommodating cylinder portion 23, and terminals 25 are accommodated in these cavities 24. The terminal 25 is made of a conductive metal material such as copper and is connected to the electric wire 37. The electric wires 37 connected to these terminals 25 are drawn out of the housing 21 from the rear end side of the housing 21. Further, a seal member 35 is attached to the electric wire 37, and the seal member 35 is fitted into each cavity 24 from the rear end side of the housing 21. Thereby, each cavity 24 is waterproofed by the sealing member 35 on the rear end side of the housing 21. Further, a lance 28 is formed in the cavity 24 so as to protrude inward of the cavity 24 (upward in FIG. 3). Then, the terminal 25 is inserted into the cavity 24 so as to be locked by the lance 28 and held in the state accommodated in the cavity 24.

  In the housing 21, the outer peripheral surface of the terminal accommodating cylinder portion 23 is a first wall portion 26 extending in the insertion direction of the packing 11. The housing 21 has a second wall portion 27 that extends in a direction perpendicular to the insertion direction of the packing 11 and connects the housing main body portion 22 and the terminal accommodating cylinder portion 23 inside the housing main body portion 22.

  A lock arm 31 that protrudes toward the first wall portion 26 (inward) is provided on the housing main body portion 22 of the housing 21 in the vicinity of the second wall portion 27 on the left and right side portions of the hood portion 22a. Is formed.

  Then, with respect to the housing 21, the annular gap formed between the hood portion 22 a of the housing main body portion 22 and the terminal accommodating cylinder portion 23 enters the annular gap of the housing 21 from the front end side of the housing 21. The packing 11 is inserted.

  In the packing 11, the inner peripheral surface of the packing main body portion 12 is in close contact with the first wall portion 26 which is the outer periphery of the terminal accommodating cylinder portion 23, and the rear end surfaces of the packing main body portion 12 and the collar portion 13 are the second wall portion 27. The rib 18 of the collar portion 13 is locked to the lock arm 31. Thereby, the packing 11 is assembled to the housing 21.

  The retainer 20 attached to the housing 21 is a member molded from a synthetic resin such as plastic, and is assembled to the terminal accommodating cylinder portion 23 of the housing 21 from the rear end side.

  As shown in FIGS. 5A and 5B, the retainer 20 has two beaks 42 and 43 at different positions in the front and rear directions in the mounting direction (front-rear direction) to the housing 21. Further, groove portions 44 and 45 are formed in the terminal accommodating cylinder portion 23 of the housing 21, and these groove portions 44 and 45 have step portions 44 a and 45 a at different positions before and after in the mounting direction of the retainer 20. ing.

  The retainer 20 is assembled to the terminal accommodating cylinder portion 23 from the front end side of the housing 21. At this time, first, as shown in FIG. 5A, the beak 42 on the front side in the mounting direction enters the groove portion 44 having the stepped portion 44a on the rear side in the mounting direction. Thus, the retainer 20 is in a temporarily locked state in which the beak 42 is locked to the stepped portion 44 a of the groove 44 and is temporarily fixed to the housing 21. When the retainer 20 is further pushed into the housing 21 from this state, as shown in FIG. 5B, the beak 43 on the rear side in the mounting direction enters the groove 45 having the step 45a on the front side in the mounting direction. As a result, the retainer 20 is in a fully locked state in which the beak 43 is locked to the stepped portion 45 a of the groove 45 and is fixed to the housing 21. In the fully locked state, a part of the retainer 20 enters the bending space of the lance 28, the bending of the lance 20 is restricted, and the terminal 25 is double locked.

  When the connector 10 including the packing 11 described above is fitted and connected to the housing of the counterpart connector (not shown), the terminal (not shown) of the counterpart connector is connected to each terminal 25 of the terminal accommodating cylinder portion 23. Connected and conducted with each other.

  When the connector 10 is fitted into the mating connector housing, the mating connector housing is inserted between the hood portion 22 a of the housing body 22 and the packing 11. Then, as for packing 11, the outer peripheral surface of packing main-body part 12 closely_contact | adheres to the housing of a mating connector. In particular, the lip portion 16 formed on the outer peripheral surface of the packing main body portion 12 is pressed against the housing of the mating connector and is elastically deformed, thereby securely contacting the housing of the mating connector. Thereby, the connection location of the connector 10 and the other party connector is reliably waterproofed.

  In the connector 10, when the packing 11 is attached to the housing 21, an annular jig 51 shown in FIG. 6 is used.

  The jig 51 includes a cylindrical main body 52 having a rear end surface 52 a formed in an annular shape corresponding to the ring shape of the packing 11, a gripping portion 53 projecting outward on the front end side of the main body 52, have. The main body portion 52 is formed in an open cylindrical shape with both front and rear ends open, and the rear side portion is a packing mounting portion 54. Inside the packing mounting portion 54, the packing main body portion 12 of the packing 11 is on the tip side. It is inserted from (front end side). The packing mounting portion 54 is formed to be thinner on the inner side than the portion on the front end side of the packing mounting portion 54 in the main body portion 52. Thereby, a stepped portion 55 is formed on the inner surface of the packing mounting portion 54. The packing mounting portion 54 has a length in the front-rear direction that is substantially the same as the length in the front-rear direction of the packing body portion 12.

  A plurality of convex portions (locking portions) 56 are formed on the end surface 52 a of the main body portion 52. Each of these convex portions 56 is formed at the center in the vertical direction on both the left and right sides of the main body portion 52, and two are formed at each of the upper and lower portions of the main body portion 52. These convex portions 56 have an outer shape slightly smaller than the concave portion 15 formed in the packing 11, and are formed at positions corresponding to the concave portions 15, respectively. Moreover, the convex part 56 is formed so that it may protrude in the insertion direction (front-back direction) of the packing 11 from the end surface 52a.

  Next, an assembly process for assembling the packing 11 to the housing 21 using the jig 51 will be described.

  FIG. 7 is an explanatory diagram for explaining a process of mounting the packing 11 to the housing 21, and FIGS. 7A to 7C are cross-sectional views of the housing 21, the packing 11, and the jig 51, respectively. is there. FIG. 8 is an enlarged view of part A in FIG. Hereinafter, in the description of the assembling process, an aspect in which an operator performs work related to assembling will be described, but the embodiment of the present invention is not limited thereto. For example, a mode in which part or all of the work related to assembly is performed by a mechanical device may be employed.

  First, the worker holds the packing 11 on the jig 51 as shown in FIG. Specifically, the operator inserts the packing main body portion 12 of the packing 11 from the front end side (front end side) into the main body portion 52 of the jig 51 from the front end side (rear end side). . If it does in this way, the packing main-body part 12 will be engage | inserted by the packing mounting part 54. FIG. Thereby, the front-end | tip part of the packing main-body part 12 contact | abuts to the step part 55, and the convex part 56 of the end surface 52a of the main-body part 52 fits into the recessed part 15 of the packing 11, as shown in FIG. The end surface 52 a comes into contact with the flange portion 13 of the packing 11. That is, the collar portion 13 of the packing 11 is placed on the end surface 52 a of the main body portion 52, and the packing 11 contacts the end surface 52 a of the main body portion 52. In this way, the packing 11 is held by the jig 51.

  Next, as shown in FIG. 7 (b), the operator grips the grip portion 53 so that the front end portion (rear end portion) of the jig 51 is moved from the front end side (front end side) of the housing 21 to the collar portion 13. Insert until it comes into contact with the second wall 27. Then, the packing 11 is mounted on the housing 21 in a state where the rib 18 formed on the collar portion 13 at the rear end is locked by the lock arm 31 formed on the housing 21 and is in close contact with the outer periphery of the terminal accommodating cylinder portion 23. The

  Thereafter, as shown in FIG. 7C, the worker grips the grip portion 53 and pulls out the jig 51 from the housing 21. As a result, the main body 52 of the jig 51 is detached from the packing 11, and only the jig 51 is removed from the housing 21.

  Each member is assembled by the assembly process described above, and the connector 10 according to the present embodiment is obtained.

  Below, the effect | action and effect of the packing mounting structure and connector 10 which concern on this embodiment are demonstrated.

The packing mounting structure according to the present embodiment includes a cylindrical terminal accommodating cylinder portion 23 that accommodates the terminals 25, and a cylindrical hood portion 22a that is formed so as to cover the outer periphery of the terminal accommodating cylinder portion 23. An annular packing 11 that is inserted into the housing 21 from between the housing 21, the terminal accommodating cylinder portion 23, and the hood portion 22 a and is attached in close contact with the outer periphery of the terminal accommodating cylinder portion 23, and an end face 52 a ( The rear end surface) has a cylindrical main body 52 formed in an annular shape corresponding to the outer shape of the packing 11, and at least a part of the main body 52 is in the state where the packing 11 is in contact with the end surface 52 a. And a jig 51 for attaching the packing 11 to the terminal accommodating cylinder portion 23 by being inserted inside. And the convex part 56 as a latching part is formed in the end surface 52a, and the recessed part 15 as a to-be-latched part latched by the convex part 56 is formed in the packing 11. As shown in FIG.
According to the mounting structure of the packing 11 according to this embodiment, even when the annular packing 11 is mounted to the housing 21 by the annular jig 51, the end face 52 a of the main body 52 of the jig 51. Since the packing 11 is inserted into the housing 21 from between the terminal accommodating cylinder portion 23 and the hood portion 11a in a state in which the convex portion 56 formed in is fitted and locked in the concave portion 15 of the packing 11, the packing 11 is not slackened and the packing 11 does not fall inward (see FIG. 13). That is, since the posture of the packing 11 held by the jig 51 is stabilized, the user can correctly attach the packing 11 to the housing 21 simply by inserting the jig 51 into the housing 21. Therefore, according to the mounting structure of the packing 11 according to the present embodiment, it is possible to reliably ensure the waterproof property of the connection portion by the packing 11 when connected to the counterpart connector. In addition, workability when the packing 11 is attached to the housing 21 can be improved.
As described above, according to the packing mounting structure according to this embodiment, it is possible to provide a packing mounting structure capable of ensuring good waterproofness.

In the packing mounting structure according to the present embodiment, the locking portion is a convex portion 56 protruding from the end surface 52 a in the insertion direction (front-rear direction) of the packing 11, and the locked portion is formed on the packing 11. It is the concave portion 15 that is fitted to the convex portion 56.
According to such a packing mounting structure, since the locking portion made of the convex portion 56 is inserted and fitted into the locked portion made of the concave portion 15, the packing 11 is securely held against the jig 51. Is done. For this reason, generation | occurrence | production of the slack of the packing 11 is suppressed.

Further, in the packing mounting structure according to the present embodiment, a plurality of convex portions 56 as locking portions are formed on the end surface 52a, and the packing 11 has locking portions to which the convex portions 56 are respectively locked. A plurality of recesses 15 are formed.
According to such a packing mounting structure, since the plurality of convex portions 56 and the concave portion 15 are fitted, the packing 11 is slack compared with the case where the single convex portion 56 and the concave portion 15 are fitted. The packing 11 can be held on the jig 51 easily and reliably.

Further, the connector 10 according to the present embodiment includes a cylindrical terminal accommodating cylinder portion 23 that accommodates the terminal 25, and a cylindrical hood portion 22a that is formed so as to cover the outer periphery of the terminal accommodating cylinder portion 23. And a ring-shaped packing 11 which is inserted into the housing 21 from between the terminal accommodating cylinder portion 23 and the hood portion 22a and attached in close contact with the outer periphery of the terminal accommodating cylinder portion 23. In the connector 10, the packing 11 is in contact with the end surface 52 a of the jig 51 having a cylindrical main body 52 in which the end surface 52 a (rear end surface) on the opening side has an annular shape corresponding to the outer shape of the packing 11. By inserting at least a part of the main body 52 of the jig 51 into the housing 21, the packing 11 is attached to the terminal accommodating cylinder 23. And the convex part 56 as a latching part is formed in the end surface 52a, and the recessed part 15 as a to-be-latched part latched by the convex part 56 is formed in the packing 11. As shown in FIG.
Further, in the connector 10 according to the present embodiment, the above-mentioned locked portion formed on the packing 11 is fitted with a convex portion 56 that protrudes from the end surface 52 a of the jig 51 in the insertion direction (front-rear direction) of the packing 11. It is a recess 15.
Further, in the connector 10 according to the present embodiment, the packing 11 is formed with a plurality of recesses 15 to which the plurality of projections 56 formed on the end surface 52a of the jig 51 are respectively locked.
According to such a connector 10, the same effect as the effect in the packing mounting structure described above can be obtained. That is, according to the connector 10 according to the present embodiment, it is possible to provide a connector that can ensure good waterproofness.

  The technical scope of the present invention is not limited to the embodiment described above. The above-described embodiments can be accompanied by various modifications and improvements within the technical scope of the present invention.

  For example, in the present embodiment, the locking portion is the convex portion 56 protruding in the front-rear direction from the end surface 52a, and the locked portion is the concave portion 15 that fits the convex portion 56, but the packing 11 is cured. Any configuration may be used as long as it is held with respect to the tool 51. For example, the locking portion formed on the end surface 52a may be a concave portion, and the locked portion formed on the packing 11 may be a convex portion. A configuration using other locking mechanisms may be used.

  In the present embodiment, a plurality of convex portions 56 are formed on the end surface 52a, and a plurality of concave portions 15 are formed on the packing 11 so that the convex portions 56 are locked. However, a single convex portion is formed on the end surface 52a. A portion may be formed and a single recess may be formed in the packing 11.

  In the present embodiment, the packing 11 is mounted on the terminal accommodating cylinder portion 23 by inserting almost all of the main body portion 52 of the jig 51 into the housing 21. A configuration may be adopted in which a part of the rear side is inserted into the housing 21.

  In the present embodiment, the jig 51 is formed in an open cylindrical shape, but may be configured in a cylindrical shape in which only the rear end side in FIG. 6 is opened.

10: Connector 11: Packing 15: Concave portion (locked portion)
21: Housing 22a: Hood part 23: Terminal accommodating cylinder part 25: Terminal 51: Jig 52: Main body part 52a: End face 56: Convex part (locking part)

Claims (3)

A housing having a cylindrical terminal accommodating cylinder portion that accommodates a terminal, and a cylindrical hood portion formed so as to cover the outer periphery of the terminal accommodating cylinder portion;
An annular packing that is inserted into the housing from the front end side between the terminal accommodating cylinder and the hood, and is attached in close contact with the outer periphery of the terminal accommodating cylinder.
Rear end surface has a jig main body part cylinder shape formed in an annular shape corresponding to the shape of the packing, at least a portion of the jig main body portion, said housing in a state in which the packing is in contact with the rear end face A jig for attaching the packing to the terminal accommodating cylinder by being inserted inside;
A packing mounting structure comprising:
The packing includes an annular packing main body portion, and a collar portion protruding to the outer peripheral side in the circumferential direction at the rear end portion of the packing main body portion,
On the inner peripheral surface at a predetermined position in the front-rear direction of the jig body part, a step part facing the opening on the rear end side of the jig body part is formed over the circumferential direction,
A locking part is formed on the rear end surface of the jig body part,
A locked portion that is locked to the locking portion is formed on the front end surface of the collar portion,
A state in which the front end surface of the packing main body portion is in contact with the stepped portion, the locked portion is locked in the locking portion, and the rear end surface of the jig main body portion is in contact with the front end surface of the collar portion. Then, by inserting the jig main body into the housing, the packing is attached to the terminal accommodating cylinder.
A packing mounting structure characterized by that. The locking portion is a convex portion projecting rearwardly from the end plane of the jig main body portion,
The locked portion is a recess formed on the front end surface of the collar portion and fitted with the projection.
The packing mounting structure according to claim 1. The end plane of the jig main body portion, the locking portion is formed with a plurality,
On the front end surface of the collar portion , a plurality of the locked portions to which the locking portions are respectively locked are formed.
The packing mounting structure according to claim 1, wherein the packing mounting structure is provided.

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