JP2017045635A - Retainer with seal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a press-fit rib from being impaired by a corrugated tube, for example.SOLUTION: Since a retainer 10 with seal is constituted of a substrate part 31, an annular seal attachment wall 35 having a notch 37 opening forward, and projecting forward from the front surface 38 of the substrate part 31, and an annular retainer seal 20 having a press-fit rib 23 being press-fitted in the notch 37, and attached along the outer peripheral surface of the seal attachment wall 35, the press-fit rib 23 does not project rearward from the rear surface 39 of the substrate part 31. Consequently, the press-fit rib 23 is not impaired by a corrugated tube 45, when the corrugated tube 45 for protecting wires is disposed along the rear surface 39 of the substrate part 31.SELECTED DRAWING: Figure 7

Description

  The technique disclosed by this specification is related with the retainer with a seal | sticker.

  Conventionally, as a connector for charging attached to the vehicle side, a connector described in Japanese Patent Application Laid-Open No. 2011-249039 (Patent Document 1 below) is known. This includes a housing, a vehicle-side terminal accommodated in a terminal accommodating portion of the housing, a retainer that prevents the vehicle-side terminal from coming off, and a grommet that prevents water from entering the vehicle. The vehicle-side terminal has an electric wire connecting portion connected to the core wire of the electric wire, and a shrinkable tube is attached to a region from the electric wire connecting portion to the covering of the electric wire. Thereby, the inside of an electric wire connection part is waterproofed.

JP 2011-249039 A

  However, in the above connector, it is necessary to attach a contraction tube to each vehicle-side terminal, so that the installation work is troublesome. Therefore, a method of eliminating the contraction tube by arranging a retainer seal between the retainer and the housing and collectively sealing a plurality of vehicle side terminals can be considered. In this case, a squid head-shaped protrusion is provided on the retainer seal, the protrusion is inserted into the hole provided in the retainer, and the retainer seal is previously attached to the retainer by locking the protrusion at the hole edge of the hole. There is a method of assembling and holding. According to this method, since the projecting portion protrudes rearward from the rear surface of the retainer through the hole, when the corrugated tube is assembled between the retainer and the cover assembled from the rear to the retainer, the corrugated tube There is a risk that the projection may be damaged by the tube.

A retainer with a seal disclosed by the present specification has a base plate portion, a notch that opens forward, and has an annular seal mounting wall that protrudes forward from the front surface of the base plate portion, and the notch It has a press-fitting rib to be press-fitted, and an annular retainer seal that is mounted along the outer surface of the seal mounting wall.
According to such a configuration, since the press-fitting rib does not protrude rearward from the rear surface of the substrate portion, when the corrugated tube for protecting the electric wire is disposed along the rear surface of the substrate portion, the press-fitting rib is pressed by the corrugated tube. The ribs will not be damaged.

The sealed retainer disclosed in the present specification may have the following configuration.
The notch is provided side by side with the seal mounting wall in the circumferential direction, and the press-fitting rib is press-fitted into the notch in a state of protruding from the outer peripheral surface of the seal mounting wall toward the inner peripheral surface. It is good also as composition which has.
According to such a configuration, when the retainer seal is viewed from the front, it is easy to see the press-fitting rib, and the press-fitting operation is facilitated by positioning the press-fitting rib in the notch.

The protruding end surface of the press-fitting rib press-fitted into the notch may be arranged at a position aligned with the inner peripheral surface of the seal mounting wall.
According to such a configuration, it is easy to confirm that the retainer seal is mounted on the outer peripheral surface of the seal mounting wall in a normal mounting posture.

  According to the retainer with a seal disclosed in the present specification, it is possible to prevent the press-fitting rib from being damaged by, for example, a corrugated tube.

Retainer front view Retainer seal front view Rear view of retainer seal Front view of retainer with seal Retainer perspective view Retainer seal perspective view The perspective view which showed the state before attaching a retainer seal to a retainer The perspective view which showed the state after attaching a retainer seal to a retainer The perspective view which showed the state after attaching the retainer seal relevant to the retainer seal of this embodiment to a retainer. The side view which looked at the state where the cover was assembled from the state of Drawing 9 from the side

<Embodiment>
The embodiment will be described with reference to the drawings of FIGS. As shown in FIG. 7, the retainer 10 with a seal according to this embodiment includes a retainer seal 20 and a retainer 30. The retainer 30 can be fitted from behind to an inlet body (not shown). Terminals such as power terminals and signal terminals are accommodated in the inlet body, and a plurality of electric wires connected to these terminals are pulled out rearward from the inlet body, and the retainer 30 collectively prevents the terminals from coming off. It has come to be.

  The retainer 30 is made of synthetic resin, and as shown in FIG. 5, a circular and plate-like substrate portion 31 and a plurality of terminal holding portions provided in a form penetrating the substrate portion 31 in the plate thickness direction. 32, a plurality of retainer mounting pieces 33 provided so as to protrude forward (front side in the mounting direction to the inlet body) from the peripheral edge of the substrate portion 31, and backward from the peripheral edge of the substrate portion 31 (attachment to the inlet main body) And a plurality of cover mounting portions 34 provided so as to protrude rearward in the direction). Each of the retainer mounting piece 33 and the cover mounting portion 34 is configured to extend in an arc shape along the peripheral edge portion of the substrate portion 31.

  The terminal holding part 32 has a cylindrical shape, and can be brought into contact with a flange provided on the outer periphery of the terminal from the rear. Thereby, each terminal is hold | maintained by each terminal holding | maintenance part 32 in the state which cannot prevent coming-out in the state accommodated in the inlet main body. Further, the retainer mounting piece 33 can be elastically bent, and when the retainer 30 is mounted on the inlet main body from the rear, after it rides on the protrusion provided on the inlet main body, it elastically returns to the normal mounting position. The retainer 30 is held on the inlet body by being locked to the protrusion.

  The cover mounting portion 34 is configured to be flush with the outer peripheral surface of the substrate portion 31 and extend rearward. That is, the cover mounting portion 34 has a shape extending in an arc shape along the peripheral edge portion of the substrate portion 31 when viewed from the rear. Each cover mounting portion 34 is provided at a position substantially corresponding to each retainer mounting piece 33 in the front-rear direction. 9 and 10 show a state in which the retainer seal 50 related to the retainer seal 20 of the present embodiment is mounted on the retainer 30, but the retainer 30 itself is the same as the retainer 30 of FIGS. . Moreover, the cover 40 shown in FIG. 10 is the same as the cover 40 assembled | attached to the retainer 30 of FIGS. 1-8.

  The cover 40 is made of synthetic resin, and as shown in FIG. 10, a cover main body 41 that covers the electric wire along the electric wire routing path, and a fitting cylinder portion that is fitted on each cover mounting portion 34 of the retainer 30. 42. Note that the cover mounting portion 34 of the retainer 30 is covered and protected by the fitting tube portion 42.

  The cover main body 41 is provided with a wire lead-out portion 43. The wire lead-out portion 43 includes an opening 44 for allowing the wire to pass therethrough. The opening 44 does not require a wire to pass through the cover 40, and the cover 40 can be attached to the retainer 30 by retrofitting. The wires drawn backward from the respective terminal holding portions 32 of the retainer 30 are bent at a right angle in the cover main body 51 and led out to the outside from the wire drawing portion 43 while being accommodated in the corrugated tube 45. ing.

  As shown in FIG. 5, an annular seal mounting wall 35 is provided on the front surface 38 of the substrate portion 31 of the retainer 30 so as to protrude forward. Although the seal mounting wall 35 is substantially annular, it is not completely connected, and both end portions 36 in the circumferential direction of the seal mounting wall 35 are arranged to face each other. Both end portions 36 of the seal mounting wall 35 are planes perpendicular to the front surface 38 of the substrate portion 31, and a space sandwiched between the both end portions 36 of the seal mounting wall 35 is a notch 37. The notch 37 is configured to open forward, and the front surface 38 of the substrate portion 31 is exposed forward at the position of the notch 37. As shown in FIG. 1, the notch 37 is provided along with the seal mounting wall 35 in the circumferential direction.

  Although the diameter of the seal mounting wall 35 is slightly smaller than the diameter of the substrate portion 31, the seal mounting wall 35 has a size that can collectively enclose the plurality of terminal holding portions 32. A plurality of long holes LH are provided on the outer peripheral side of the seal mounting wall 35 in the substrate portion 31. As shown in FIG. 9, the long hole LH is a hole for inserting a protrusion 51 provided on the retainer seal 50. The protrusion 51 includes a pair of locking protrusions 52 that come into contact with the rear surface 39 of the substrate portion 31. The retainer seal 50 is firmly held by the retainer 30 by the engagement protrusions 52 engaging with the rear surface 39 of the base plate portion 31 from the rear.

  However, as shown in FIG. 10, a corrugated tube 45 is disposed in the wire lead-out portion 43, and when the corrugated tube 45 is assembled between the retainer 30 and the cover 40, the projection 51 is formed by the corrugated tube 45. There is a possibility of damage. As a countermeasure, in this embodiment, the retainer seal 20 is used instead of the retainer seal 50. In other words, depending on the installation environment such as the presence or absence of the corrugated tube 45, either the retainer seal 20 or the retainer seal 50 can be selectively used with respect to the retainer 30.

  The retainer seal 20 is made of an elastic member such as rubber. As shown in FIGS. 2, 3, and 6, the retainer seal 20 protrudes inward from an annular seal body 21 and an inner peripheral seal surface 22 of the seal body 21. And a press-fitting rib 23 having a form to be configured. The press-fitting rib 23 has a rectangular column shape and is projected to the inner peripheral side with the same dimension as that of the seal body 21 in the axial direction. Therefore, as shown in FIG. 2, the front surface 24 of the press-fit rib 23 is flush with the front surface of the seal body 21, and as shown in FIG. 3, the rear surface 25 of the press-fit rib 23 is flush with the rear surface of the seal body 21. There is no.

  As shown in FIG. 7, the retainer seal 20 can be positioned by aligning the press-fitting ribs 23 of the retainer seal 20 with the notches 37 of the retainer 30. Further, as shown in FIG. 8, by knowing that the press-fitting rib 23 is press-fitted into the notch 37, it is known that the retainer seal 20 is mounted on the outer peripheral surface 35 </ b> A of the seal mounting wall 35 in a normal mounting posture. be able to. The press-fitting rib 23 is press-fitted and held in the notch 37, whereby the seal body 21 is held on the outer peripheral surface 35 </ b> A of the seal mounting wall 35.

  As shown in FIG. 4, the press-fitting rib 23 is press-fitted into the notch 37 in a state of protruding from the outer peripheral surface 35 </ b> A of the seal mounting wall 35 toward the inner peripheral surface 35 </ b> B. According to such a configuration, when the retainer seal 20 is viewed from the front, the press-fitting rib 23 can be easily seen, and the press-fitting rib 23 can be easily positioned by being positioned in the notch 37.

  Further, the protruding end surface 26 of the press-fitting rib 23 press-fitted into the notch 37 is arranged at a position aligned with the inner peripheral surface 35 </ b> B of the seal mounting wall 35. According to such a configuration, it is easy to confirm that the retainer seal 20 is mounted on the outer peripheral surface 35A of the seal mounting wall 35 in a regular mounting posture.

  As described above, the retainer 10 with a seal according to the present embodiment includes the base plate portion 31 and the notch 37 that opens forward, and the seal mounting wall 35 that forms an annular shape while protruding forward from the front surface 38 of the base plate portion 31. And the annular retainer seal 20 mounted along the outer surface (outer peripheral surface 35A) of the seal mounting wall 35, and the press-fitting rib 23. However, when the corrugated tube 45 for protecting the electric wire is disposed along the rear surface 39 of the substrate portion 31, the press-fitting rib 23 is formed by the corrugated tube 45. It will not hurt.

<Other embodiments>
The technology disclosed in the present specification is not limited to the embodiments described with reference to the above description and drawings, and includes, for example, the following various aspects.
(1) Although the cutout 37 is provided at a depth reaching the front surface 38 of the substrate portion 31 in the above embodiment, the cutout 37 is provided at a depth that does not reach the front surface 38 of the substrate portion 31 (within the seal mounting wall 35). May be provided.

  (2) Although the shaft seal type retainer seal 20 mounted on the outer peripheral surface 35A of the seal mounting wall 35 is illustrated in the above embodiment, for example, a surface seal type retainer seal mounted on the front surface of the seal mounting wall 35 is illustrated. It is good.

  (3) Although the notch 37 is provided side by side with the seal mounting wall 35 in the circumferential direction in the above embodiment, the notch may be provided on the inner peripheral side or the outer peripheral side of the seal mounting wall 35 in a shifted manner.

  (4) In the above embodiment, the protruding end surface 26 of the press-fitting rib 23 is arranged at a position aligned with the inner peripheral surface 35B of the seal mounting wall 35, but between the outer peripheral surface 35A and the inner peripheral surface 35B of the seal mounting wall 35. The projecting end surface of the press-fitting rib may be located at the top.

DESCRIPTION OF SYMBOLS 10 ... Retainer with a seal 20 ... Retainer seal 23 ... Press-fit rib 26 ... Projection end surface 30 ... Retainer 31 ... Substrate part 35 ... Seal mounting wall 35A ... Outer peripheral surface 35B ... Inner peripheral surface 37 ... Notch 38 ... Front of (the substrate part)

Claims (3)

A substrate section;
A seal mounting wall having a notch opening forward, and having a ring shape protruding forward from the front surface of the substrate portion;
A retainer with a seal, including a press-fit rib that is press-fitted into the notch, and an annular retainer seal that is mounted along an outer surface of the seal mounting wall.   The notch is provided side by side with the seal mounting wall in the circumferential direction, and the press-fitting rib is press-fitted into the notch in a state of protruding from the outer peripheral surface of the seal mounting wall toward the inner peripheral surface. The retainer with a seal according to claim 1.   The retainer with a seal according to claim 2, wherein a protruding end surface of the press-fitting rib press-fitted into the notch is arranged at a position aligned with an inner peripheral surface of the seal mounting wall.

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