JP6020035B2 - Seal member and connector - Google Patents

Description

  The present invention relates to a seal member and a connector including the seal member.

  Conventionally, as a connector for electric wiring, there is one in which a seal member that seals between an outer surface of an electric wire and an inner surface of a housing is used (for example, see Patent Document 1).

  The rubber plug (sealing member) described in Patent Document 1 has a pair of plug portions divided by a plane that traverses a plurality of insertion holes through which the electric wire is inserted, and the outer surface of the electric wire and the inner surface of the housing by the pair of plug portions Seal between. Plural strips of lips are formed on the inner surface of the insertion hole formed by overlapping the pair of plug portions and the outer surface of each plug portion.

  At one end of each plug part, a grip part for facilitating the assembly work is provided, and by holding the grip part and pushing the plug part into the housing hole along the axial direction of the electric wire, The top of the lip is elastically pressed against the outer surface of the electric wire and the inner surface of the receiving hole to seal between them. Each grip part is connected via a hinge so as to be opened and closed.

JP 2000-323229 A

  However, in the thing of the said patent document 1, when a pair of plug part piled up was pushed in the accommodation hole of the housing, one plug part and the other plug part are along the mutual contact surface of an electric wire. There may be a relative movement in the axial direction (accommodating direction in the housing). Further, there is a possibility that the sealing performance may be deteriorated due to the axial displacement of the lip of one plug part and the lip of the other plug part resulting from the relative movement between the one plug part and the other plug part. It was.

  Accordingly, an object of the present invention is to secure a sealing performance by suppressing a shift in the axial direction of an electric wire in one lip portion and the other lip portion while constituting a seal member by a pair of elastic members combined with each other. It is an object of the present invention to provide a seal member and a connector that can be used.

In order to solve the above-described problems, the present invention provides a pair of elastic members that form insertion holes through which a shaft-like member can be inserted in the axial direction by contacting at a plurality of contact portions and being combined with each other. A sealing member capable of sealing between an outer surface of the shaft-shaped member and an inner surface of a housing hole that accommodates a part of the shaft-shaped member, and the insertion hole in a state in which the pair of elastic members are combined A plurality of inner seal lip portions that are formed in an annular shape on the inner surface of the shaft member and elastically contact the outer surface of the shaft-shaped member, and the pair of elastic members are recesses formed in the plurality of contact portions, respectively. Relative to each other in the axial direction between the plurality of inner seal lip portions formed on one elastic member side and the plurality of inner seal lip portions formed on the other elastic member side by fitting the portion and the protrusion. movement regulations Are, the recess is formed as a V-shaped groove widths toward the groove bottom is narrower, the projection may have a ridge line extending groove bottom line and parallel to the direction of the V-shaped groove It is formed as a ridge shaped to fit into the V-shaped groove, and the top of all the inner seal lip portions among the plurality of inner seal lip portions is the ridge line of the ridge or the groove bottom line of the V-shaped groove. A seal member is provided that intersects with.

Further, for the purpose of solving the above-mentioned problem, it comprises a pair of elastic members that form insertion holes through which a shaft-like member can be inserted in the axial direction by contacting at a plurality of contact portions and being combined with each other. A seal member capable of sealing between an outer surface of the shaft-shaped member and an inner surface of an accommodation hole for accommodating a part of the shaft-shaped member, wherein the pair of elastic members is combined with the pair of elastic members. A plurality of outer seal lip portions that are formed in an annular shape continuously on the outer surface of the housing hole and elastically contact the inner surface of the housing hole, and the pair of elastic members are recessed portions formed in the plurality of contact portions, respectively. Relative movement in the axial direction between the plurality of outer seal lip portions formed on one elastic member side and the plurality of outer seal lip portions formed on the other elastic member side due to the fitting of the protrusion and the protrusion There regulations Are, the recess is formed as a V-shaped groove widths toward the groove bottom is narrower, the projection may have a ridge line extending groove bottom line and parallel to the direction of the V-shaped groove It is formed as a ridge shaped to fit into the V-shaped groove, and the top of all the outer seal lip portions of the plurality of outer seal lip portions is the ridge line of the ridge or the groove bottom line of the V-shaped groove. A seal member is provided that intersects with.

Further, for the purpose of solving the above-mentioned problem, it comprises a pair of elastic members that form insertion holes through which a shaft-like member can be inserted in the axial direction by contacting at a plurality of contact portions and being combined with each other. A seal member capable of sealing between an outer surface of the shaft-shaped member and an inner surface of a housing hole that accommodates a part of the shaft-shaped member, and the inner surface of the insertion hole in a state where the pair of elastic members are combined. And a plurality of inner seal lip portions that are elastically in contact with the outer surface of the shaft-shaped member, and the pair of elastic members in a state where the pair of elastic members are combined. A plurality of outer seal lip portions that are formed in an annular shape and elastically contact the inner surface of the accommodation hole, and the pair of elastic members are formed by recesses and protrusions respectively formed in the plurality of contact portions. Mating Thus, the plurality of inner seal lip and the plurality of outer seal lip and the other of said plurality formed in the elastic member side of the inner sealing lip and said plurality of outer seal formed on one of the elastic member side the relative movement of the axial direction of the lip portion is restricted, the recess is formed as a V-shaped groove widths toward the groove bottom is narrower, the protrusion, a groove of the V-shaped grooves It is formed as a ridge having a ridge line extending in a direction parallel to the bottom line and fitting into the V-shaped groove, and among all of the plurality of inner seal lip portions, The tops of all the outer seal lip portions of the outer seal lip portions provide a seal member that intersects the ridge line of the protrusion or the groove bottom line of the V-shaped groove.

  Moreover, in order to solve the said subject, the connector which contains the said sealing member and the housing which has the said accommodation hole, and accommodates the edge part of the electric wire as said shaft-shaped member which penetrates the said insertion hole in the said housing I will provide a.

  According to the seal member and the connector according to the present invention, while the seal member is constituted by a pair of elastic members combined with each other, the seal property is suppressed by suppressing the axial displacement of the electric wire in one lip portion and the other lip portion. Can be secured.

It is a partial sectional view showing an example of composition of a connector apparatus containing a seal member concerning an embodiment of the invention, and a connector which has this seal member. The sealing member is shown, (a) is a perspective view, (b) is a front view, and (c) is a side view. It is a perspective view which shows the seal member before the 1st seal member and 2nd seal member which comprise a seal member fit. The 1st seal member and the 2nd seal member are shown, (a) is a side view of the 1st seal member, (b) is a side view of the 2nd seal member, (c) is A- of the 1st seal member in Drawing 3. A sectional drawing, (d) is AA sectional drawing of the 2nd sealing member in FIG. The sealing member which concerns on a comparative example is shown, (a) is a perspective view of a sealing member, (b) is a perspective view before the 1st sealing member and 2nd sealing member which comprise a sealing member fit. The sealing member which concerns on a comparative example is shown, (a) is a side view, (b) is a side view when accommodated in the accommodation hole of a female side housing.

[Embodiment]
FIG. 1 is a partial cross-sectional view showing a configuration example of a connector device including a seal member according to an embodiment of the present invention and a connector having the seal member.

(Configuration of connector device 1)
The connector device 1 has a male connector 11 and a female connector 12. The male connector 11 and the female connector 12 are coupled by fitting the male housing 3 of the male connector 11 and the female housing 2 of the female connector 12 together. In the present embodiment, the male housing 3 and the female housing 2 are fitted so that a part of the male housing 3 is accommodated in the female housing 2.

  For example, three electric wires 100 for supplying a current to an electric motor as a drive source of the vehicle are connected to the female connector 12. This electric motor is, for example, a three-phase AC motor, and the three electric wires 100 supply each phase current to the three-phase AC motor.

(Configuration of male connector 11)
The male connector 11 includes a plurality (three in the present embodiment) of male connection terminals 30 and a male housing 3 that holds the plurality of male connection terminals 30. The male housing 3 includes a first metal element 31 having conductivity such as aluminum, and a second resin element 32 held by the first element 31.

  The first element 31 includes a cylindrical tube portion 33 that accommodates a part of the plurality of male connection terminals 30 and a through hole (not shown) for fixing the male housing 3 to a fixed object such as a case of a device. And a flange portion 34 formed with the same. The cylindrical portion 33 is provided with a fitting protrusion 330 on the outer peripheral surface thereof for fitting with the female housing 2 of the female connector 12.

  The second element 32 integrally has a terminal block portion 35 formed on the opposite side of the first element 31. A plurality of male connection terminals 30 are held in parallel on the terminal block 35.

(Configuration of female connector 12)
The female connector 12 includes a plurality (three in this embodiment; one of which is indicated by a broken line in FIG. 2) connected to one end of a plurality (three in the present embodiment) of the electric wires 100. It has a side connection terminal 20 and a female side housing 2 that holds the female side connection terminal 20. The plurality of electric wires 100 includes a core wire 100a made of a conductive metal and an insulating coating 100b. The core wire 100 a is covered with an insulating coating 100 b except for the tip connected to the female connection terminal 20. The electric wire 100 is an example of the shaft-shaped member of the present invention.

  On the outer surface of the female housing 2, a fitting recess 200 is formed that fits with a fitting protrusion 330 provided on the first element 31 of the male connector 11. The end portion 21 of the female housing 2 is formed with an accommodation hole 210 that guides the plurality of electric wires 100 and accommodates the seal member 4 that seals between the female housing 2 and the plurality of electric wires 100. .

(Configuration of seal member 4)
2A and 2B show the seal member 4, wherein FIG. 2A is a perspective view, FIG. 2B is a front view, and FIG. 2C is a side view.

  The seal member 4 is a combination of a first seal member 4A and a second seal member 4B as a pair of elastic members. By combining the first seal member 4A and the second seal member 4B, a track-shaped outer peripheral surface 4a and A pair of flat side surfaces 4b is formed. The seal member 4 has a plurality (three in the present embodiment) of insertion holes 40 that can penetrate between the pair of side surfaces 4b in the thickness direction and allow the plurality of electric wires 100 to be inserted in the axial direction. Is formed. The seal member 4 can seal between the outer surface 100 c of the electric wire 100 and the inner surface 210 a of the accommodation hole 210 that accommodates a part of the electric wire 100.

  The three insertion holes 40 have the same configuration, but when it is necessary to distinguish between them in the following description, the three insertion holes 40 are sequentially inserted from the left side of FIG. , 42, 43. The material of the first seal member 4A and the second seal member 4B is made of, for example, silicon rubber, fluorine rubber, nitrile rubber, ethylene propyl rubber, or the like. The three insertion holes 40 are formed such that the respective central axes C are parallel to each other and orthogonal to the side surface 4b, and the inner diameter thereof is smaller than the outer diameter of the electric wire 100 (shown in FIG. 1).

  As shown in FIG. 2A, the outer peripheral surface 4a of the seal member 4 has three outer seal lips protruding in a V shape in a direction perpendicular to the central axis C over the entire circumference. The parts 401, 402, and 403 are formed in an annular shape parallel to each other and continuously to the outer surface 4a. Here, “continuously” means that the seal member 4 in a state where the first seal member 4A and the second seal member 4B are combined is connected without having a break where air or the like circulates. . The outer seal lip 402 is formed at the center of the seal member 4 in the thickness direction, and the outer seal lip 401 and the outer seal lip 403 are formed on both sides of the outer seal lip 402. The three outer seal lip portions 401, 402, and 403 seal the receiving hole 210 when the top portions 401 a, 402 a, and 403 a elastically contact the inner surface 210 a of the receiving hole 210 of the female housing 2. Here, the “top portion” refers to the peripheral portion including the apex in the protruding direction of the seal lip portion. “Elastic contact” refers to contact with elastic deformation that exerts a repulsive force against the pressing force.

  As shown in FIG. 2 (a), three inner seal lips projecting in the V shape inward of the insertion hole 40 over the entire circumference in the circumferential direction on the inner peripheral surface 40a of the three insertion holes 40. Portions 411, 412 and 413 are formed. The inner seal lip portions 411, 412 and 413 are formed in an annular shape parallel to each other and continuously to the inner peripheral surface 40a. Further, the inner seal lip portions 411, 412, 413 in the three insertion holes 40 (41, 42, 43) are elastically contacted with the outer surface of the electric wire 100 by the top portions 411 a, 412 a, 413 a of the electric wire 100. The sealing performance with respect to the outer surface 100c is maintained.

  The outer seal lip portions 401, 402, 403 on the outer peripheral surface 4a and the inner seal lip portions 411, 412, 413 on the inner peripheral surface 40a of the three insertion holes 40 (41, 42, 43) They are formed at the same position in the central axis C direction of (41, 42, 43).

  Further, the first seal member 4A and the second seal member 4B are in contact with each other at a plurality of (four in the present embodiment) contact portions 50. In the following description, when it is necessary to distinguish between the plurality of contact portions 50, the four contact portions 50 will be described as contact portions 51, 52, 53, and 54 in order from the left side of FIG. An insertion hole 41 is provided between the contact part 51 and the contact part 52, an insertion hole 42 is provided between the contact part 52 and the contact part 53, and an insertion hole 43 is provided between the contact part 53 and the contact part 54. , Are arranged between each other. The contact part 51 and the contact part 54 are located at both ends in the arrangement direction of the three insertion holes 40.

  FIG. 3 is a perspective view showing the seal member 4 before the first seal member 4A and the second seal member 4B constituting the seal member 4 are fitted. 4 shows the first seal member 4A and the second seal member 4B, (a) is a side view of the first seal member 4A, (b) is a side view of the second seal member 4B, and (c) is FIG. FIG. 4A is a cross-sectional view taken along the line AA of the first seal member 4A in FIG. 3, and FIG.

  The first seal member 4A has three semicircular grooves 40A (41A, 42A, 43A), and the second seal member 4B has three semicircular grooves 40B (41B, 42B, 43B). Is formed. When the first seal member 4A and the second seal member 4B are combined, the insertion hole 40 is formed by the coupling of the groove 40A and the groove 40B. More specifically, the insertion hole 41 is formed by coupling the groove 41A and the groove 41B, the insertion hole 42 is formed by coupling the groove 42A and the groove 42B, and the insertion hole 43 is formed by coupling the groove 43A and the groove 43B. Is done.

(Configuration of the first seal member 4A)
As shown in FIG. 3, on the outer surface 4Aa of the first seal member 4A, three outer seal lip portions 401A, 402A, 403A projecting in a V shape in a direction perpendicular to the outer surface 4Aa are formed in parallel to each other. .

  As shown in FIG. 4C, on the inner peripheral surface 40Aa of the three groove portions 40A, there are three protrusions protruding in the V shape inward of the groove portion 40A along the circumferential direction of the central axis C of the insertion hole 40. Inner seal lip portions 411A, 412A, and 413A are formed. The inner seal lip portions 411A, 412A, and 413A are formed in parallel to each other.

  The outer seal lip portions 401A, 402A, 403A on the outer surface 4Aa and the inner seal lip portions 411A, 412A, 413A on the inner peripheral surfaces 40Aa of the three groove portions 40A (41A, 42A, 43A) are the groove portions 40A (41A, 41A, 41A, 413A). 42A, 43A) at the same position in the central axis direction.

  When the first seal member 4A is combined with the first seal member 4A and the second seal member 4B, four contact portions 50A (51A, 51A, 52A, 53A, 54A).

(Relative movement restriction structure of seal member 4)
As shown in FIGS. 4A and 4C, the first protrusions 60 (61, 62, 63, 64) are formed on the four contact portions 50A (51A, 52A, 53A, 54A), respectively. Yes. In the present embodiment, the first protrusion 60 is formed as a protrusion extending linearly, that is, a protrusion.

  More specifically, the contact portion 51A is formed with a first protrusion 61 having a protrusion extending from the outer seal lip portion 402A on the outer surface 4Aa to the inner seal lip portion 412A on the groove portion 41A. The ridge line (the line connecting the tips of the protrusions) intersects the top portion 402Aa of the outer seal lip portion 402A and the top portion 412Aa of the inner seal lip portion 412A.

  The contact portion 52A is formed with a first protrusion 62 that extends from the inner seal lip portion 412A in the groove portion 41A to the inner seal lip portion 412A in the groove portion 42A, and the ridge line of the first protrusion 62 is the inner seal lip portion in the groove portion 41A. The top 412Aa of 412A and the top 412Aa of the inner seal lip 412A in the groove 42A intersect.

  The contact portion 53A is formed with a first protrusion 63 that extends from the inner seal lip portion 412A in the groove portion 42A to the inner seal lip portion 412A in the groove portion 43A, and the ridge line of the first protrusion 63 is the inner seal lip portion in the groove portion 42A. The top 412Aa of 412A and the top 412Aa of the inner seal lip 412A in the groove 43A intersect.

  A first protrusion 64 is formed on the contact portion 54A from the inner seal lip 412A in the groove 43A to the outer seal lip 402A on the outer surface 4Aa. The ridge line of the first protrusion 64 is the inner seal lip in the groove 43A. It intersects the top 412Aa of 412A and the top 402Aa of the outer seal lip 402A on the outer surface 4Aa.

  Further, two second protrusions 600 (611 to 614, 621 to 624) of a second seal member 4B described later are fitted into the four contact portions 50A (51A, 52A, 53A, 54A). The depressions 700 (711-714, 721-724) are formed respectively. In the present embodiment, the second recess 700 is formed as a V-shaped groove whose width becomes narrower toward the groove bottom.

  More specifically, the second recesses 711 and 721 having groove bottom lines (lines connecting the deepest portions of the grooves) extending in a direction parallel to the ridgeline of the first protrusion 61 are formed in the contact portion 51A. Yes. The groove bottom line of the second recess 711 intersects the top 401Aa of the outer seal lip 401A on the outer surface 4Aa and the top 411Aa of the inner seal lip 411A in the groove 41A. The groove bottom line of the second recess 721 intersects the top 403Aa of the outer seal lip 403A on the outer surface 4Aa and the top 413Aa of the inner seal lip 413A on the groove 41A.

  In the contact portion 52A, second recess portions 712 and 722 having groove bottom lines extending in a direction parallel to the ridge line of the first protrusion 62 are formed. The groove bottom line of the second recess 712 intersects the top 411Aa of the inner seal lip 411A in the groove 41A and the top 411Aa of the inner seal lip 411A in the groove 42A. The groove bottom line of the second recess 722 intersects the top 413Aa of the inner seal lip 413A in the groove 41A and the top 413Aa of the inner seal lip 413A in the groove 42A.

  In the contact portion 53A, second recess portions 713 and 723 having groove bottom lines extending in a direction parallel to the ridge line of the first protrusion 63 are formed. The groove bottom line of the second recess 713 intersects the top 411Aa of the inner seal lip 411A in the groove 42A and the top 411Aa of the inner seal lip 411A in the groove 43A. The groove bottom line of the second recess 723 intersects the top 413Aa of the inner seal lip 413A in the groove 43A and the top 413Aa of the inner seal lip 413A in the groove 42A.

  In the contact portion 54A, second recess portions 714 and 724 having groove bottom lines extending in a direction parallel to the ridge line of the first protrusion 64 are formed. The groove bottom line of the second recess 714 intersects the top 411Aa of the inner seal lip 411A in the groove 43A and the top 401Aa of the outer seal lip 401A on the outer surface 4Aa. The groove bottom line of the second recess 724 intersects the top 413Aa of the inner seal lip 413A in the groove 43A and the top 403Aa of the outer seal lip 403A in the outer surface 4Aa.

(Configuration of the second seal member 4B)
As shown in FIG. 3, on the outer surface 4Ba of the second seal member 4B, three outer seal lip portions 401B, 402B, and 403B projecting in a V shape in a direction perpendicular to the outer surface 4Ba are formed in parallel to each other. .

  As shown in FIG. 4 (d), on the inner peripheral surface 40Ba of the three groove portions 40B, there are three protrusions protruding in the V shape inward of the groove portion 40B along the circumferential direction of the central axis C of the insertion hole 40. Inner seal lip portions 411B, 412B, and 413B are formed. The inner seal lip portions 411B, 412B, and 413B are formed in parallel to each other.

  The outer seal lip portions 401B, 402B, 403B on the outer surface 4Ba and the inner seal lip portions 411B, 412B, 413B on the inner peripheral surface 40Ba of each of the three groove portions 40B (41B, 42B, 43B) are the groove portions 40B (41B, 41B, 41B, 413B). 42B, 43B) at the same position in the central axis direction.

  Three outer seal lip portions 401A, 402A, 403A are formed on the outer surface 4Aa of the first seal member 4A, and three outer seal lip portions 401B, 402B, 403B are formed on the outer surface 4Ba of the second seal member 4B. . When the first seal member 4A and the second seal member 4B are combined, the outer seal lip 401A of the seal member 4 is joined to the outer seal lip 402A by the combination of the outer seal lip 401A and the outer seal lip 401B. The outer seal lip portion 402 of the seal member 4 is connected to the outer surface 4a by the connection with the lip portion 402B and the outer seal lip portion 403 of the seal member 4 is connected to the outer surface 4a by the connection of the outer seal lip portion 403A and the outer seal lip portion 403B. To form an annular shape.

  Three inner seal lip portions 411A, 412A, 413A are formed in the groove portion 41A of the first seal member 4A, and three inner seal lip portions 411B, 412B, 413B are formed in the groove portion 41B of the second seal member 4B. When the first seal member 4A and the second seal member 4B are combined, the inner seal lip portion 411 of the insertion hole 41 is joined to the inner seal lip portion 412A and the inner seal lip portion 411B by the combination of the inner seal lip portion 411A and the inner seal lip portion 411B. The inner seal lip portion 412 of the insertion hole 41 is coupled with the lip portion 412B, and the inner seal lip portion 413 of the insertion hole 41 is coupled to the inner surface of the insertion hole 41 with the coupling of the inner seal lip portion 413A and the inner seal lip portion 413B. It is formed in an annular shape continuously from 40a. The insertion holes 42 and 43 have the same configuration as the insertion hole 41.

  At this time, the top portion 411a of the inner seal lip portion 411 is coupled by the coupling of the top portion 411Aa and the top portion 411Ba, the top portion 412a of the inner seal lip portion 412 is coupled by the coupling of the top portion 412Aa and the top portion 412Ba, and the top portion 413Aa and the top portion 413Ba are coupled. A top portion 413a of the inner seal lip portion 413 is formed. The top portions 411a, 412a, and 413a of the inner seal lip portions 411, 412, and 413 in the insertion holes 42 and 43 have the same configuration as the top portions 411a, 412a, and 413a of the inner seal lip portions 411, 412, and 413 in the insertion hole 41. is there.

  As shown in FIGS. 4B and 4D, the four first protrusions 60 (61, 62, 63) of the first seal member 4A are provided on the four contact portions 50B (51B, 52B, 53B, 54B). , 64) are respectively formed as V-shaped grooves whose widths are narrowed toward the bottom of the groove 70 (71, 72, 73, 74).

  The second seal member 4B has four contact portions 50B (51B, 52B, 53B) that come into contact with the four contact portions 50A of the first seal member 4A when the first seal member 4A and the second seal member 4B are combined. , 54B). As shown in FIG. 3, the contact part 51A of the first seal member 4A and the contact part 51B of the second seal member 4B are composed of the contact part 52A of the first seal member 4A and the contact part 52B of the second seal member 4B. The contact portion 53A of the first seal member 4A and the contact portion 53B of the second seal member 4B are in contact with the contact portion 54A of the first seal member 4A and the contact portion 54B of the second seal member 4B, respectively.

  More specifically, a first recess 71 is formed in the contact portion 51B from the outer seal lip 402B on the outer surface 4Ba to the inner seal lip 412B on the groove 41B, and the groove bottom line of the first recess 71 is It intersects the top portion 402Ba of the outer seal lip portion 402B and the top portion 412Ba of the inner seal lip portion 412B.

  A first recess 72 is formed in the contact portion 52B from the inner seal lip 412B in the groove 41B to the inner seal lip 412B in the groove 42B. The groove bottom line of the first recess 72 is the inner seal lip in the groove 41B. It intersects the top 412Ba of the portion 412B and the top 412Ba of the inner seal lip 412B in the groove 42B.

  A first recess 73 is formed in the contact portion 53B from the inner seal lip 412B in the groove 42B to the inner seal lip 412B in the groove 43B, and the groove bottom line of the first recess 73 is the inner seal lip in the groove 42B. It intersects with the top 412Ba of the portion 412B and the top 412Ba of the inner seal lip portion 412B in the groove 43B.

  A first recess 74 is formed in the contact portion 54B from the inner seal lip 412B in the groove 43B to the outer seal lip 402B in the outer surface 4Ba. The groove bottom line of the first recess 74 is the inner seal lip in the groove 43B. It intersects the top 412Ba of the portion 412B and the top 402Ba of the outer seal lip 402B on the outer surface 4Ba.

  Further, two second protrusions fitted in the second recesses 700 (711 to 714, 721 to 724) of the first seal member 4A are provided on the four contact portions 50B (51B, 52B, 53B, 54B). 600 (611-614, 621-624) are formed, respectively. In the present embodiment, the second protrusion 600 is formed as a protrusion.

  More specifically, second protrusions 611 and 621 having ridge lines extending in a direction parallel to the groove bottom line of the first recess 71 are formed on the contact portion 51B. The ridgeline of the second protrusion 611 intersects the top 401Ba of the outer seal lip 401B on the outer surface 4Ba and the top 411Ba of the inner seal lip 411B in the groove 41B. The ridgeline of the second protrusion 621 intersects the top 403Ba of the outer seal lip 403B on the outer surface 4Ba and the top 413Ba of the inner seal lip 413B in the groove 41B.

  On the contact portion 52B, second protrusions 612 and 622 having ridge lines extending in a direction parallel to the groove bottom line of the first recess 72 are formed. The ridgeline of the second protrusion 612 intersects the top 411Ba of the inner seal lip 411B in the groove 41B and the top 411Ba of the inner seal lip 411B in the groove 42B. The ridgeline of the second protrusion 622 intersects the top 413Ba of the inner seal lip 413B in the groove 41B and the top 413Ba of the inner seal lip 413B in the groove 42B.

  In the contact portion 53B, second protrusions 613 and 623 having ridge lines extending in a direction parallel to the groove bottom line of the first recess 73 are formed. The ridgeline of the second protrusion 613 intersects the top 411Ba of the inner seal lip 411B in the groove 42B and the top 411Ba of the inner seal lip 411B in the groove 43B. The ridgeline of the second protrusion 623 intersects the top 413Ba of the inner seal lip 413B in the groove 42B and the top 413Ba of the inner seal lip 413B in the groove 43B.

  On the contact portion 54B, second protrusions 614 and 624 having ridge lines extending in a direction parallel to the ridge line of the first recess 74 are formed. The ridgeline of the second protrusion 614 intersects the top 411Ba of the inner seal lip 411B in the groove 43B and the top 401Ba of the outer seal lip 401B on the outer surface 4Ba. The ridgeline of the second protrusion 624 intersects the top 413Ba of the inner seal lip 413B in the groove 43B and the top 403Ba of the outer seal lip 403B on the outer surface 4Ba.

  When the first seal member 4A and the second seal member 4B are combined, the first protrusion 61 and the first recess 71, the first protrusion 62 and the first recess 72, the first protrusion 63 and the first recess 73, and the first protrusion 64 and the first recess 74 are fitted. Similarly, the second protrusion 611 and the second recess 711, the second protrusion 612 and the second recess 712, the second protrusion 613 and the second recess 713, and the second protrusion 614 and the second recess. The parts 714 are respectively fitted. Also, the second protrusion 621 and the second recess 721, the second recess 622 and the second recess 722, the second protrusion 623 and the second recess 723, and the second protrusion 624 and the second recess 724. Are respectively fitted.

(Assembly procedure of female connector 12)
The female connector 12 is assembled by the following procedure. First, the female side connection terminal 20 is connected to each of the three electric wires 100, and the end portions of the three electric wires 100 are inserted into the female side housing 2 from the accommodation holes 210 together with the female side connection terminals 20. Next, in the vicinity of the end portion 21 of the female housing 2, the first seal member 41 and the second seal member 4 </ b> B face each other with the three electric wires 100 interposed therebetween and are brought into contact with each other. Then, the seal member 4 (the first seal member 41 and the second seal member 4B) is elasticated along the three electric wires 100 in the accommodation hole 210 in a state where the first seal member 4A and the second seal member 4B are combined. Push in while deforming.

  As a result, the top portions 401 a, 402 a, and 403 a of the outer seal lip portions 401, 402, and 403 are elastically pressed against and closely contact the inner surface 210 a of the receiving hole 210 of the female housing 2. In addition, the top portions 411 a, 412 a, and 413 a of the inner seal lip portions 411, 412, and 413 are elastically pressed against and closely contact the outer surface 100 c of the electric wire 100. Accordingly, the seal member 4 seals the space between the inner surface 210 a of the accommodation hole 210 and the outer surface 100 c of the three electric wires 100.

(Comparative example)
5A and 5B show a seal member 8 according to a comparative example, where FIG. 5A is a perspective view of the seal member, and FIG. 5B is a diagram in which the first seal member 8A and the second seal member 8B constituting the seal member 8 are fitted. It is a front perspective view. 6A and 6B show the seal member 8 according to the comparative example, in which FIG. 6A is a side view, and FIG. 6B is a side view when accommodated in the accommodation hole 210 of the female-side housing 2.

  The seal member 8 according to this comparative example is a combination of the first seal member 8A and the second seal member 8B, similarly to the seal member 4 according to the embodiment of the present invention. The seal member 8 according to this comparative example is different from the four contact portions 50 according to the embodiment in the shape of the four contact portions 90. 5 and 6, portions having the same functions as those described for the seal member 4 are denoted by the same reference numerals, and redundant description thereof is omitted.

  As shown in FIG. 5, when the first seal member 8A and the second seal member 8B are combined, the four contact portions 90 of the seal member 8 are connected to the four contact surfaces 90Aa and the second contact surface 90Aa of the first seal member 8A. The four contact surfaces 90Ba of the seal member 8B are formed in surface contact. The contact surface 90Aa of the first seal member 8A and the contact surface 90Ba of the second seal member 8B are flat surfaces and are formed as surfaces that face each other in parallel.

  When the seal member 8 is accommodated in the accommodation hole 210 of the female housing 2 instead of the seal member 4, the force for pushing the seal member 8 is not applied equally to both the first seal member 8A and the second seal member 8B. Sometimes. For example, when the housing direction of the seal member 8 with respect to the female housing 2 is the direction of arrow B in FIG. 6B, and the force applied to the second seal member 8B is greater than the force applied to the first seal member 8A, the second seal A force that moves in the direction of arrow B acts on the member 8B with respect to the first seal member 8A. On the other hand, a force (frictional force) opposite to the direction of the arrow B acts on the first seal member 8A with respect to the second seal member 8B.

  Accordingly, for example, as shown in FIG. 6B, the top portions 401Aa, 402Aa, and 403Aa of the outer seal lip portions 401A, 402A, and 403A of the first seal member 8A are bent in the direction opposite to the arrow B at the contact portion 90. Further, the top portions 401Ba, 402Ba, and 403Ba of the outer seal lip portions 401B, 402B, and 403B in the second seal member 8B are bent in the direction of arrow B at the contact portion 90. As a result, displacement occurs between the top portions 401Aa, 402Aa, 403Aa on the first seal member 8A side and the top portions 401Ba, 402Ba, 403Ba on the second seal member 8B side, so that there is a gap through which air or the like flows in the contact portion 90. It is formed. Similarly, in the three insertion holes 40, the top portions 411Aa, 412Aa, and 413Aa on the first seal member 8A side and the top portions 411Ba, 412Ba, and 413Ba on the second seal member 8B side are displaced. A gap through which air or the like flows is formed. For this reason, the sealing performance with respect to the inner surface 210a of the accommodation hole 210 and the sealing performance with respect to the outer surface 100c of the three electric wires 100 are impaired.

(Operation and effect of the embodiment)
According to the present embodiment, the following operations and effects can be obtained.

(1) The seal member 4 according to the present embodiment is the first even when the force for pushing the seal member 4 into the accommodation hole 210 is not applied equally to both the first seal member 4A and the second seal member 4B. The first protrusion 60 formed on the seal member 4A is fitted into the first recess 70 formed on the second seal member 4B, whereby the insertion hole 40 between the first seal member 4A and the second seal member 4B. The relative movement in the axial direction is restricted. Accordingly, in the contact portion 50, the displacement between the outer seal lip portions 401A, 402A, 403A of the first seal member 8A and the outer seal lip portions 401B, 402B, 403B of the second seal member 8B, and the first seal member 8A. The displacement between the inner seal lip portions 411A, 412A, 413A of the second seal member 8B and the inner seal lip portions 411B, 412B, 413B of the second seal member 8B is suppressed. Thereby, compared with the case where the sealing member 8 which concerns on a comparative example is used, the sealing performance between the female side housing 2 and the electric wire 100 can be made more reliable, for example.

(2) In addition to the first protrusion 60, the second seal 700 is formed on the first seal member 4A, and the second protrusion 600 is formed on the second seal member 4B in addition to the first recess 70. ing. By fitting the second recess 700 and the second protrusion 600, the effect of restricting the relative movement between the first seal member 4A and the second seal member 4B becomes more reliable. Therefore, the relative movement in the axial direction of the insertion hole 40 between the first seal member 4A and the second seal member 4B is more reliably regulated, and the sealing performance is improved.

(3) The first protrusion 60 formed on the first seal member 4A has its ridge line intersecting the top 402Aa of the outer seal lip 402A on the outer surface 4Aa and the top 412Aa of the inner seal lip 412A in each groove 40A. Yes. The first recess 70 formed in the second seal member 4B has a groove bottom line intersecting the top 402Ba of the outer seal lip 402B on the outer surface 4Ba and the top 412Ba of the inner seal lip 412B in each groove 40B. That is, the first protrusion 60 and the first recess 70 are formed to be folded at the top portions 402Aa, 412Aa, 402Ba, 412Ba of the outer seal lip portions 402A, 412A, 402B, 412B. Therefore, it can suppress more reliably that a shift | offset | difference arises between top part 402Aa and top part 402Ba in the outer peripheral surface 4a of the sealing member 4, and between top part 412Aa and top part 412Ba in each penetration hole 40. Similarly, for the second protrusion 600 and the second recess 700, between the top 401Aa and the top 401Ba on the outer peripheral surface 4a of the seal member 4, between the top 403Aa and the top 403Ba, and the top 411Aa in each insertion hole 40. And the top portion 411Ba, and the displacement between the top portion 413Aa and the top portion 413Ba can be more reliably suppressed.

(4) Of the four contact portions 50, the protrusions 60 and the recesses 70 are formed on the contact portions 51 and 54 located at both ends in the arrangement direction of the insertion holes 40. That is, of the four contact portions 50, the protrusions 60 and the recesses 70 are formed on the contact portions 51 and 54 close to the inner surface 210 a of the female housing 2. This improves the sealing performance.

(Summary of embodiment)
Next, the technical idea grasped from the embodiment described above will be described with reference to the reference numerals in the embodiment. However, the reference numerals and the like in the following description are not intended to limit the constituent elements in the claims to the members and the like specifically shown in the embodiments.

[1] A first seal member (4A) as a pair of elastic members that form an insertion hole (40) into which the electric wire (100) as an axial member can be inserted in the axial direction by being combined with each other; A seal comprising a second seal member (4B) capable of sealing between the outer surface (100c) of the electric wire (100) and the inner surface (210a) of the accommodation hole (210) for accommodating a part of the electric wire (100). The member (4) is formed in an annular shape continuously with the inner surface (40a) of the insertion hole (40) in a state where the first and second seal members (4A, 4B) are combined, and the electric wire (100 ) Elastically contacting the outer surface (100c) of the inner seal lip portion (411, 412, 413) and the inner seal lip portion (411A, 412) formed on the first seal member (4A) side. , 413A) and a relative movement restricting structure for restricting relative movement in the axial direction between the inner seal lip portion (411B, 412B, 413B) formed on the second seal member (4B) side, The movement restricting structure is fitted into the first recess (70) formed in the first seal member (4A) and the first recess (70) formed in the second seal member (4B). A seal member (4) having a first protrusion (60).

[2] A first seal member (4A) as a pair of elastic members that form an insertion hole (40) into which the electric wire (100) as the shaft-shaped member can be inserted in the axial direction by being combined with each other; A seal comprising a second seal member (4B) capable of sealing between the outer surface (100c) of the electric wire (100) and the inner surface (210a) of the accommodation hole (210) for accommodating a part of the electric wire (100). It is a member (4), and in a state where the first and second seal members (4A, 4B) are combined, it is continuously annularly formed on the outer surface (4a) of the first and second seal members (4A, 4B). An outer seal lip portion (401, 402, 403) formed and elastically contacting the inner surface (210a) of the receiving hole (210) and the outer seal lip formed on the first seal member (4A) side. A relative movement restricting structure for restricting relative movement in the axial direction between the portion (401A, 402A, 403A) and the outer seal lip portion (401B, 402B, 403B) formed on the second seal member (4B) side; The relative movement restricting structure includes a first recess (70) formed in the first seal member (4A) and the first recess (70) formed in the second seal member (4B). And a first protrusion (60) fitted to the sealing member (4).

[3] A first seal member (4A) as a pair of elastic members that form an insertion hole (40) through which the electric wire (100) as an axial member can be inserted in the axial direction by being combined with each other; A seal comprising a second seal member (4B) capable of sealing between the outer surface (100c) of the electric wire (100) and the inner surface (210a) of the accommodation hole (210) for accommodating a part of the electric wire (100). The member (4) is formed in an annular shape continuously with the inner surface (40a) of the insertion hole (40) in a state where the first and second seal members (4A, 4B) are combined, and the electric wire (100 ) In the state in which the inner seal lip portions (411, 412, 413) that elastically contact the outer surface (100c) and the first and second seal members (4A, 4B) are combined. An outer seal lip portion (401, 402, 403) formed in an annular shape continuously on the outer surface (4a) of the seal member (4A, 4B) and elastically contacting the inner surface (210a) of the receiving hole (210); The outer seal lip portion (401A, 402A, 403A) formed on the first seal member (4A) side and the outer seal lip portion (401B, 402B, formed on the second seal member (4B) side. 403B) and a relative movement restricting structure for restricting the relative movement in the axial direction, the relative movement restricting structure including a first recess (70) formed in the first seal member (4A), A seal member (4) having a first protrusion (60) fitted in the first recess (70) formed in the second seal member (4B).

[4] The first recess (70) is formed as a V-shaped groove whose width becomes narrower toward the groove bottom, and the first protrusion (60) is a protrusion that fits into the V-shaped groove. The ridge line of the protrusion and the groove bottom line of the V-shaped groove are at least one of the inner seal lip portion (411, 412, 413) and the outer seal lip portion (401, 402, 403). The seal member (4) according to any one of [1] to [3], which intersects the top portions (411Aa to 413Aa, 411Ba to 413Ba, 401Aa to 403Aa, 401Ba to 403Ba) of the seal lip portion.

[5] Among the plurality of contact portions (90) in which the first seal member (4A) and the second seal member (4B) are in contact, at least two contact portions (90) have the first protrusion (60). ) And the second recess (70). The sealing member (4) according to any one of [1] to [4].

[6] A plurality of the insertion holes (40) are formed, and the contact portions (90) positioned at both ends in the arrangement direction of the plurality of insertion holes (40) among the plurality of contact portions (90), respectively. The seal member (4) according to [5], wherein the first protrusion (60) and the first recess (70) are formed.

[7] A seal member (4) according to any one of [1] to [6], and a female housing (2) having the accommodation hole (210), wherein the insertion hole (40) is provided. A female connector (12) in which an end of the electric wire (100) to be inserted is accommodated in the female housing (2).

  While the embodiments of the present invention have been described above, the embodiments described above do not limit the invention according to the claims. In addition, it should be noted that not all the combinations of features described in the embodiments are essential to the means for solving the problems of the invention.

  In the present embodiment, four first protrusions 60 (61, 62, 63, 64) and four first recesses 70 (71, 72, 54) are provided on the four contact portions 50 (51, 52, 53, 54). 73, 74), the first protrusion 60 and the first recess 70 need only be formed in at least two contact portions 50.

  For example, when the first protrusion 60 and the first recess 70 are formed on two of the four contact portions 50, the first contact portions 50 positioned at both ends in the arrangement direction of the insertion holes 40 are respectively first. The protrusion 60 and the first recess 70 may be formed. That is, the first protrusion 60 and the first recess 70 are preferably formed in the contact portion 51 and the contact portion 54. This is because when the first protrusion 60 and the first recess 70 are formed in the contact portion 52 and the contact portion 53, the first seal member 4A and the second seal member are centered in the arrangement direction of the insertion holes 40. The relative movement with respect to 4B is restricted, and it becomes easy to form a torsion shaft centering on the contact portion 52 and the contact portion 53, and the sealing performance is likely to be impaired particularly in the contact portion 51 and the contact portion 54. Because.

  Further, the first protrusion 60 may not be formed on the first seal member 4A, and the first recess 70 may not be formed on the second seal member 4B. The first recess 70 may be formed in the first seal member 4A, and the first protrusion 60 may be formed in the second seal member 4B. Alternatively, the first protrusion 60 and the first recess 70 are fitted to the first seal member 4A, and the first seal 60 is fitted to the first protrusion 60 and the first recess 70 of the first seal member 4A. The recess 70 and the first protrusion 60 may be formed. For example, the first protrusions 60 are respectively formed on the contact portions 51A and 53A of the first seal member 4A and the contact portions 52B and 54B of the second seal member 4B, and contact the contact portions 52A of the first seal member 4A. When the first recess 70 is formed in the contact portion 51B and the contact portion 53B of the portion 54A and the second seal member 4B, the first seal member 4A and the second seal member 4B have the same shape. For example, it is possible to manufacture with one type of mold. This leads to an improvement in work efficiency in the manufacturing process and a reduction in manufacturing costs.

  Further, the second protrusion 600 and the second recess 700 in the first seal member 4A and the second seal member 4B may not be formed.

  In this embodiment, a plurality of (three) insertion holes 40, outer seal lip portions 401, 402, 403, and inner seal lip portions 411, 412, 413 are formed in one seal member 4. However, there is no limit to the number.

  Further, in the present embodiment, a case where one seal member 4 is pushed into one accommodation hole 210 (single-layer seal structure) is shown, but a plurality of, for example, two seal members are pushed (lamination) (Seal structure). In this case, for each of the two seal members, both of the outer seal lip portion and the inner seal lip portion may be formed, one of which forms only the outer seal lip portion, and the other It is also possible to form only the inner seal lip portion, and combine them to give the required sealability (seal performance) as a whole, or one of the outer seal lip portion and the inner seal lip. It is good also as a 2nd combination structure which forms both of a part and the other forms either an outside seal lip part or an inside seal lip part, and combines them. In the case of the second combination structure, if one of the seal members has a required sealing property, the other seal member, that is, a seal member in which one of the outer seal lip portion or the inner seal lip portion is formed. Is a position of supplementary sealing performance.

DESCRIPTION OF SYMBOLS 1 ... Connector apparatus, 2 ... Female side housing (housing), 3 ... Male side housing, 4 ... Seal member, 4A ... 1st seal member (elastic member), 4Aa ... Outer surface, 4B ... 2nd seal member (elastic member) 4Ba ... outer surface, 4a ... outer peripheral surface, 4b ... side surface, 8 ... sealing member, 8A ... first sealing member (elastic member), 8B ... second sealing member (elastic member), 11 ... male connector, 12 ... female connector 20 ... Female side connection terminal, 21 ... End, 30 ... Male side connection terminal, 31 ... First element, 32 ... Second element, 33 ... Tube part, 34 ... Flange part, 35 ... Terminal block part, 40A ... Groove, 40Aa ... inner peripheral surface, 40B ... groove, 40Ba ... inner peripheral surface, 40a ... inner peripheral surface, 40 (41, 42, 43) ... insertion hole, 40A (41A, 42A, 43A) ... groove, 40B (41B) , 42B, 43B) ... groove portion, 0 (51, 52, 53, 54) ... contact part, 50A (51A, 52A, 53A, 54A) ... contact part, 50B (51B, 52B, 53B, 54B) ... contact part, 60 (61, 62, 63, 64) ... 1st protrusion, 70 (71, 72, 73, 74) ... 1st recessed part, 90 ... Contact part, 90Aa ... Contact surface, 90Ba ... Contact surface, 100 ... Electric wire (axial member), 100a ... Core wire, 100b ... insulation coating, 100c ... outer surface, 200 ... fitting recess, 210 ... receiving hole, 210a ... inner surface, 330 ... fitting protrusion, 401, 402, 403 ... outer seal lip, 401A, 402A, 403A ... outer side Seal lip portion, 401Aa, 402Aa, 403Aa ... top, 401B, 402B, 403B ... Outside seal lip portion, 401Ba, 402Ba, 403Ba ... top, 401a, 402a 403a ... Top, 411, 412, 413 ... Inside seal lip, 411A, 412A, 413A ... Inside seal lip, 411Aa, 412Aa, 413Aa ... Top, 411B, 412B, 413B ... Inside seal lip, 411Ba, 412Ba, 413Ba ... top part, 411a, 412a, 413a ... top part, 600 (611,612,613,614,621,622,623,624) ... second protrusion, 700 (711,712,713,714,721,722,723) , 724) ... second recess

Claims (7)

It consists of a pair of elastic members that form an insertion hole through which the shaft-shaped member can be inserted in the axial direction by contacting at a plurality of contact portions and being combined with each other, and the outer surface of the shaft-shaped member and the shaft-shaped member A sealing member capable of sealing between the inner surface of the accommodation hole for accommodating a part of the housing hole,
In a state where the pair of elastic members are combined, a plurality of inner seal lip portions are formed in an annular shape continuously to the inner surface of the insertion hole and elastically contact the outer surface of the shaft-shaped member,
The pair of elastic members includes a plurality of inner seal lip portions formed on one elastic member side and the other elastic member side by fitting a recess and a protrusion formed on each of the plurality of contact portions. Relative movement in the axial direction with the plurality of inner seal lip portions formed on is restricted ,
The recess is formed as a V-shaped groove whose width becomes narrower toward the groove bottom,
The protrusion is formed as a protrusion having a ridge line extending in a direction parallel to the groove bottom line of the V-shaped groove and fitting into the V-shaped groove,
The tops of all the inner seal lip portions among the plurality of inner seal lip portions intersect the ridge line of the protrusion or the groove bottom line of the V-shaped groove,
Seal member. It consists of a pair of elastic members that form an insertion hole through which the shaft-shaped member can be inserted in the axial direction by contacting at a plurality of contact portions and being combined with each other, and the outer surface of the shaft-shaped member and the shaft-shaped member A sealing member capable of sealing between the inner surface of the accommodation hole for accommodating a part of the housing hole,
In a state where the pair of elastic members are combined, the outer surface of the pair of elastic members is continuously formed in an annular shape, and includes a plurality of outer seal lip portions that elastically contact the inner surface of the accommodation hole,
The pair of elastic members includes the plurality of outer seal lip portions formed on one elastic member side and the other elastic member side by fitting the recesses and the protrusions formed on the plurality of contact portions, respectively. the relative movement of the axis direction are regulated to have been formed the plurality of outer seal lip portion,
The recess is formed as a V-shaped groove whose width becomes narrower toward the groove bottom,
The protrusion is formed as a protrusion having a ridge line extending in a direction parallel to the groove bottom line of the V-shaped groove and fitting into the V-shaped groove,
The tops of all the outer seal lip portions among the plurality of outer seal lip portions intersect the ridge line of the ridge or the groove bottom line of the V-shaped groove,
Seal member. It consists of a pair of elastic members that form an insertion hole through which the shaft-shaped member can be inserted in the axial direction by contacting at a plurality of contact portions and being combined with each other, and the outer surface of the shaft-shaped member and the shaft-shaped member A sealing member capable of sealing between the inner surface of the accommodation hole for accommodating a part of the housing hole,
A plurality of inner seal lip portions formed in an annular shape continuously with the inner surface of the insertion hole in a state where the pair of elastic members are combined, and elastically contacting the outer surface of the shaft-shaped member;
A plurality of outer seal lip portions that are continuously formed in an annular shape on the outer surfaces of the pair of elastic members in a state in which the pair of elastic members are combined, and that elastically contact the inner surface of the accommodation hole;
The pair of elastic members includes a plurality of inner seal lip portions and a plurality of outer seals formed on one elastic member side by fitting between recesses and protrusions formed in the plurality of contact portions, respectively. and the lip portion, the relative movement of the axial direction is regulated with the other of said plurality of inner sealing lip formed on the elastic member side and the plurality of outer seal lip,
The recess is formed as a V-shaped groove whose width becomes narrower toward the groove bottom,
The protrusion is formed as a protrusion having a ridge line extending in a direction parallel to the groove bottom line of the V-shaped groove and fitting into the V-shaped groove,
All the inner seal lip portions of the plurality of inner seal lip portions and the top portions of all the outer seal lip portions of the plurality of outer seal lip portions are on the ridge line of the protrusion or the groove bottom line of the V-shaped groove. Intersect,
Seal member. Among the plurality of contact portions, the protrusion and the recess to at least two contact portions are formed,
The seal member according to any one of claims 1 to 3. A plurality of the insertion holes are formed,
Of the plurality of contact portions, the protrusions and the recesses are respectively formed in the contact portions located at both ends in the arrangement direction of the plurality of insertion holes.
The seal member according to claim 4. The recess and the protrusion are formed along the arrangement direction.
The seal member according to claim 5. The seal member according to any one of claims 1 to 6,
A housing having the receiving hole,
The end of the electric wire as the shaft-shaped member that is inserted through the insertion hole is accommodated in the housing.
connector.

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