JP2007053056A - Waterproof connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterproof connector having a wire cover mounted on female and male housings which can be used for the housings in common. <P>SOLUTION: The waterproof connector is provided with the female and male housings 10, 11, and the wire cover 12 mounted on respective housings. The housings 10, 11 are formed by a molding die opening toward fitting direction of the housings. Locking parts 32, 45 for mounting the wire cover 12 are formed on the female and male housings 10, 11, and the locking parts 32, 45 are formed in female/male locking part mold allowable areas F, M, allowing the molding of the locking parts 32, 45. At the same time, female/male lock receiving parts 33, 46 are formed on the wire cover 12 in correspondence with the locking parts 32, 45. The wire cover 12 can be used for the female/male housings 10, 11 in common by engaging the locking parts 32, 45 with the lock receiving parts 33, 46 of the wire cover 12. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a waterproof connector provided with a male and female housing formed by a mold that opens in a fitting direction of the housing.

  Conventionally, a waterproof connector described in Patent Document 1 is known. This is provided with a male and female housings that can be fitted to each other, and the female housing has an inner cylinder part that accommodates a female terminal fitting disposed at the end of the electric wire, and an outer part that surrounds the inner cylinder part. On the other hand, the male housing is provided with a terminal housing portion for housing a male terminal fitting disposed at the end of the electric wire, and a fitting portion of both housings connected to the front portion of the terminal housing portion. And a hood that opens forward in the direction of engagement. The hood part is fitted into a fitting space formed between the inner cylinder part and the outer cylinder part, so that a seal between the two housings is provided between the inner peripheral surface of the hood part and the outer peripheral surface of the inner cylinder part. Has been made.

In the waterproof connector as described above, there is a case where an electric wire cover for covering the electric wire drawing surface of the housing is attached for the purpose of improving the appearance and taking measures against high pressure washing. In this case, the lock portion formed on the housing and the lock receiving portion formed on the wire cover are engaged, so that the wire cover is mounted on the housing.
JP 63-257187 A

  In the above-described configuration, the wire cover may be attached to each of the male and female housings. In this case, it is conceivable to share the electric wire cover with respect to the male and female housings. This is expected to reduce the manufacturing cost of the wire cover.

  As described above, in order to share the electric wire cover, it is conceivable to form a lock portion for attaching the electric wire cover at a common position of the male and female housings.

  However, the housing is usually formed by a mold that opens in the fitting direction of the housing. In this case, since the lock part cannot be formed in the area behind the fitting direction of the structure formed in the housing (for example, the hood part or the outer cylinder part), the area where the lock part can be formed in both housings is restricted. Will occur.

  Therefore, in addition to opening the mold in the fitting direction of the housing, it is conceivable to mold the housing using a mold that slides in a direction crossing the fitting direction. As a result, for example, the lock part can be formed behind the hood part in the fitting direction, and the restriction on the area where the lock part can be formed in both housings is reduced. As a result, the lock part can be easily formed at the common position of both housings. It was expected to be possible.

  However, the above method is not practical because the manufacturing cost of the mold increases.

  For this reason, conventionally, a male-side electric wire cover is attached to the male housing, and a female-side electric wire cover is attached to the female housing. As described above, in the case where the housing is formed by a mold that opens in the fitting direction of the housing, it has not been possible to achieve the problem of sharing the electric wire cover attached to the housing.

  The present invention has been completed on the basis of the above circumstances, and when the male and female housings are molded by a mold that opens in the fitting direction of both housings, the electric wires to be mounted on both housings An object is to provide a waterproof connector that can share a cover.

  As a means for achieving the above object, the invention of claim 1 is such that the male and female housings that can be fitted to each other are molded by a mold that opens the mold along the fitting direction of the two housings. The female housing is provided with an inner cylinder portion that accommodates a female terminal fitting disposed at an end of the electric wire, and an outer cylinder portion that surrounds the inner cylinder portion, and the inner cylinder portion Is extended rearward from the rear end of the outer tube portion, and the male housing includes a terminal accommodating portion for accommodating a male terminal fitting disposed at an end of the electric wire, and a front portion of the terminal accommodating portion. A hood portion that opens forward in the fitting direction is provided, and the hood portion is fitted into a fitting space formed between the inner cylinder portion and the outer cylinder portion, A seal between the housings is provided between the inner peripheral surface of the hood portion and the outer peripheral surface of the inner cylinder portion. In the waterproof connector, a wire cover is attached to each of the housings on the respective wire lead-out surfaces, and the electric wires led out from the wire lead-out surface are attached to the wire covers. A main body part to be covered and a mounting part to be attached to both the housings are provided. In the female housing, the outer peripheral surface of the inner cylinder part is rearward of the rear end of the outer cylinder part. The radially outer region is a female-side lock portion formation allowable region in which formation of a female-side lock portion for attaching the wire cover to the female housing is allowed. In the male housing, A region behind the rear end of the hood portion and radially outward from the radial height position of the outer peripheral surface of the hood portion is a male lock for attaching the wire cover to the male housing. A male-side lock portion formation permissible region in which the formation of the portion is permitted, and the wire cover is attached in a common form with respect to both the housings. A female lock receiving portion that engages with the female lock portion provided in the side lock portion formation allowable region is provided, and is engaged with the male lock portion provided in the male lock portion formation allowable region. A male lock receiving portion is provided.

  According to a second aspect of the present invention, in the first aspect, the female lock portion has a diameter that is larger than a radial height position of an inner peripheral surface of the outer cylinder portion in the female lock portion formation allowable region. The male side lock portion is formed in the inner side female region of the inner side in the direction, and the male side lock portion is in a state in which the male and female housings are fitted to each other. It is formed in the male inner region that is radially inward from the height position in the radial direction, and in the inner region of each housing, the female lock portion is more radially inward than the male lock portion. Correspondingly, the female side lock receiving portion is also formed in the mounting portion in a state of being shifted radially inward from the male side lock receiving portion. It is characterized by.

  According to a third aspect of the present invention, in the second aspect of the present invention, the female side lock portion projects radially outward from the outer peripheral surface of the inner cylinder portion, and the male side lock portion is the terminal receiving portion. Projecting radially outward from the outer peripheral surface of the housing, and in the inner region of each housing, the female side lock portion is disposed at a position shifted radially inward from the male side lock portion. On the other hand, the male and female lock receiving portions project radially inward from the inner peripheral surface of the mounting portion, and the male lock receiving portion is formed at a position near the front end of the mounting portion. The female side lock receiving portion is formed behind the male side lock receiving portion and arranged in the front-rear direction in a state shifted radially inward from the male side lock receiving portion. Features.

  According to a fourth aspect of the present invention, there is provided the female cover mounting wall according to the second aspect, wherein the outer cylinder portion is extended rearward and the outer peripheral surface thereof is flush with the outer peripheral surface of the outer cylinder portion. The female side locking portion protrudes radially inward from the inner peripheral surface of the female side cover mounting wall, and forms a male side cover mounting wall in the male side inner region, The male side locking portion is projected radially inward from the inner peripheral surface of the male side cover mounting wall, and in the inner region of each housing, the female side locking portion is the male side locking portion. The male and female lock receiving portions project outward from the outer peripheral surface of the mounting portion, and the female lock receiving portion is attached to the mounting portion. Formed at a position near the front end of the female lock receiving portion. Write, said male interlocking portion, characterized in that it is formed in line in the longitudinal direction with a shift radially outward from the female interlocking portion.

  According to a fifth aspect of the present invention, in the second aspect of the present invention, the female side lock portion projects radially outward from the outer peripheral surface of the inner cylindrical portion, and the male side inner region has a male side. Forming a cover mounting wall, wherein the male side locking portion protrudes radially inward from an inner peripheral surface of the male side cover mounting wall, and the female side locking is provided in an inner region of each housing. The portion is arranged at a position shifted inward in the radial direction from the male side lock portion, while the female side lock receiving portion is formed inside the mounting portion, The male lock receiving portion is formed on the outer side, and the male and female lock receiving portions are formed so as to be arranged in the radial direction.

<Invention of Claim 1>
According to the first aspect of the present invention, in order to attach the electric wire cover to the female housing, the female side lock portion of the female housing and the female side lock receiving portion of the electric wire cover may be engaged. In order to attach the electric wire cover to the male housing, the male side lock portion of the male housing and the male side lock receiving portion of the electric wire cover may be engaged. Thus, since the electric wire cover which makes a common form can be shared between the male and female housings, the manufacturing cost of the electric wire cover can be reduced.

<Invention of Claim 2>
According to the invention of claim 2, since the female side lock part is formed in the female side inner region, the mounting part on which the female side lock receiving part is formed has a radial height of the outer peripheral surface of the outer cylinder part. It can arrange | position to radial inside rather than a position. Further, since the male side lock portion is formed in the male side inner region, the mounting portion where the male side lock receiving portion is formed is located radially inward from the radial height position of the outer peripheral surface of the outer cylinder portion. Can be arranged. Thus, since the mounting portion is arranged radially inward of the outer circumferential surface of the outer cylinder portion in both the male and female housings, the waterproof connector is Expansion in the radial direction can be prevented.

<Invention of Claim 3 and Claim 4>
According to the third aspect of the present invention, the male and female lock portions can be formed in the existing structures of the terminal housing portion of the male housing and the inner cylinder portion of the female housing. On the other hand, according to the fourth aspect of the present invention, a female-side cover mounting wall and a male-side cover mounting wall can be newly provided in the male and female housings, and male and female lock portions can be formed on the male and female cover mounting walls. Thus, regardless of which method is used, the male and female lock receiving portions are arranged in the front-rear direction in a state of being displaced in the radial direction, thereby forming the male and female lock portions in the male and female inner regions, respectively. It is possible to prevent the waterproof connector from expanding in the radial direction.

<Invention of Claim 5>
According to the invention of claim 5, since the male side lock receiving portion and the female side lock receiving portion are arranged in the radial direction inside and outside the mounting portion, the male and female lock receiving portions are aligned in the front-rear direction. Compared to the case where the wire cover is formed, the size of the wire cover in the front-rear direction can be reduced.

<Embodiment 1>
Embodiment 1 of the present invention will be described with reference to FIGS. As shown in FIG. 1, the waterproof connector according to this embodiment includes a male housing 10 and a female housing 11 that can be fitted to each other, and an electric wire cover 12 that is attached to both the housings 10 and 11. In the following description, the fitting direction of both housings 10 and 11 is the front.

  As shown in FIG. 2, the male housing 10 is made of a synthetic resin, and includes a terminal accommodating portion 14 that accommodates the male terminal fitting 13 and a hood portion 15 that is provided at the front portion of the terminal accommodating portion 14. The male housing 10 is formed by a mold (not shown) that opens in the front-rear direction (the fitting direction of the male housing 10).

  The hood 15 extends forward from the upper end of the connecting wall 16 erected outward from a position slightly closer to the front than the substantially center in the front-rear direction of the terminal accommodating portion 14. It has a cylindrical shape and opens forward. At a position near the front end of the upper wall of the hood portion 15, a lock protrusion 17 that protrudes upward is formed in the vicinity of the approximate center in the width direction, and engages with a locking hole 19 of the lock arm 18 described later. It is supposed to be. The front end surface of the lock projection 17 is formed with an inclined surface that is inclined downward so as to facilitate the operation of the lock arm 18 climbing up, while the rear end surface of the lock projection 17 has a locking hole. In order to ensure engagement with 19, it is formed to be raised.

  A cavity 20 penetrating in the front-rear direction is formed in the terminal accommodating portion 14, and the male terminal fitting 13 disposed at the end of the electric wire 21 is accommodated in the cavity 20. The male terminal fitting 13 includes a barrel portion 22 that is crimped to the electric wire 21 and a cylindrical portion 23 that continues to the front of the barrel portion 22, and a tab 24 that protrudes forward is formed at the front end of the cylindrical portion 23. ing. The male terminal fitting 13 is held in the cavity 20 in a state of being prevented from coming off when the lance 25 protruding from the inner wall of the cavity 20 is engaged with the cylindrical portion 23. A retainer 26 is attached to the front end of the terminal accommodating portion 14 from the front, whereby the male terminal fitting 13 is double-locked. The tab 24 formed in the cylindrical portion 23 penetrates through the front walls of the terminal accommodating portion 14 and the retainer 26 and protrudes into the hood portion 15. A waterproof rubber plug 27 is fitted to the rear side of the barrel portion 22 on the electric wire 21, and the lip portion 28 formed on the outer periphery of the waterproof rubber plug 27 and the inner peripheral surface of the cavity 20 are in close contact with each other. The electric wire 21 and the male housing 10 are sealed. The electric wire 21 is drawn backward from the rear end surface of the terminal accommodating portion 14, and is set as an electric wire drawing surface 29.

  As shown in FIGS. 3 and 4, the rear portion of the hood portion 15 is formed with a male cover attaching wall 30 that extends rearward and attaches the wire cover 12 to the male housing 10. A mounting portion 31 of the wire cover 12 to be described later can be inserted into a region between the male cover mounting wall 30 and a portion of the terminal accommodating portion 14 extending rearward from the rear end of the hood portion 15. It has become. The rear end face of the male cover mounting wall 30 and the rear end face of the terminal accommodating portion 14 are arranged so as to be aligned on substantially the same plane. The outer peripheral surface of the male cover mounting wall 30 is substantially the same surface as the outer peripheral surface of the outer cylindrical portion 37 of the female housing 11 to be described later or in the radial direction in a state where both the male and female housings 10 and 11 are properly fitted. Accordingly, the male cover mounting wall 30 is formed in a male inner region P described later. As shown in FIGS. 3 and 4, the inner peripheral surface of the male cover mounting wall 30 protrudes inward in the radial direction at both the left and right outer ends in the width direction and closer to the rear end. A pair of male locking portions 32 are formed. The male side lock portion 32 is also formed so as to be located in the male side inner region P. The rear end portion of the male side lock portion 32 is inclined radially outwardly toward the rear, and the male side lock portion 32 can easily ride on a male side lock receiving portion 33 of the electric wire cover 12 described later. A guide surface 34 is formed.

  On the other hand, as shown in FIG. 6, the female housing 11 is made of a synthetic resin, and includes an inner cylindrical portion 36 in which the female terminal fitting 35 is accommodated, and an outer cylindrical portion 37 that surrounds the front portion of the inner cylindrical portion 36 from the outside. And comprising. The inner cylinder part 36 and the outer cylinder part 37 are connected by a connecting wall 16 erected outward from the outer peripheral wall of the inner cylinder part 36. Of the space formed between the inner cylinder part 36 and the outer cylinder part 37, the space in front of the connecting wall 16 is a fitting space 38 into which the hood part 15 of the male housing 10 can be fitted. The female housing 11 is formed by a mold (not shown) that opens in the front-rear direction (fitting direction of the female housing 11).

  The inner cylinder portion 36 has a substantially rectangular tube shape, and a cavity 20 penetrating in the front-rear direction is formed in the inner cylinder portion 36. A female terminal fitting disposed at the end of the electric wire 21 is formed in the cavity 20. 35 is accommodated. The female terminal fitting 35 includes a barrel portion 22 that is crimped to the electric wire 21, and a connection portion 39 that is connected to the front of the barrel portion 22 and can be connected to the tab 24 of the male terminal fitting 13. Although the connecting portion 39 has a rectangular tube shape, although not shown in detail, the male contact fitting 13 and the female terminal are formed by elastic contact between the elastic contact piece formed inside the connecting portion 39 and the tab 24. Electrical connection with the metal fitting 35 is achieved. The female terminal fitting 35 is held in the cavity 20 in a state of being prevented from coming off by the lance 25 projecting from the inner wall of the cavity 20 being engaged with the connecting portion 39. A retainer 26 is attached to the front end of the inner cylinder portion 36 from the front, whereby the female terminal fitting 35 is double-locked. A waterproof rubber plug 27 is fitted to the rear side of the barrel portion 22 on the electric wire 21, and the lip portion 28 formed on the outer periphery of the waterproof rubber plug 27 and the inner peripheral surface of the cavity 20 are in close contact with each other. The electric wire 21 and the female housing 11 are sealed. A rubber seal ring 40 is fitted on the outer peripheral surface of the inner cylinder portion 36 located in the fitting space 38, and a lip 41 formed on the outer peripheral surface of the seal ring 40 is fitted into the fitting space 38. The female housing 11 and the male housing 10 are sealed by being in close contact with the inner peripheral surface of the hood portion 15 fitted therein. As described above, in the present embodiment, the inner peripheral surface of the hood portion 15 and the outer peripheral surface of the inner cylinder portion 36 serve as a seal surface between the housings 10 and 11. The electric wire 21 is drawn rearward from the rear end surface of the inner cylindrical portion 36, and serves as an electric wire drawing surface 29.

  An opening 42 is formed in the upper wall of the outer cylinder portion 37 by cutting it out in a substantially rectangular shape from the rear edge of the upper wall to the front, and the inner cylinder portion 36 is formed in the opening 42. A lock arm 18 that is formed at the upper end of a support wall 43 erected upward from the upper wall of the upper wall and swings in the vertical direction in a seesaw shape is accommodated. When the two housings 10 and 11 are properly fitted, the lock projection 17 formed on the hood 15 is engaged at the position near the front end of the lock arm 18 so that the two housings 10 and 11 are properly fitted. A locking hole 19 is formed to lock the state.

  As shown in FIGS. 7 and 8, at the rear end of the connecting wall 16, a female-side cover mounting wall 44 that extends rearward and attaches the wire cover 12 to the male housing 10 is formed. A mounting portion 31 of the wire cover 12 to be described later is inserted into a region between the female-side cover mounting wall 44 and a portion of the inner tube portion 36 that extends rearward from the rear end of the outer tube portion 37. It is possible. The rear end surface of the female side cover mounting wall 44 and the rear end surface of the inner cylinder portion 36 are formed so as to be aligned on substantially the same plane. The outer peripheral surface of the female-side cover mounting wall 44 is substantially the same as the outer peripheral surface of the outer cylinder part 37 or is located radially inward. As shown in FIGS. 7 and 8, a pair of outer peripheral surfaces of the inner cylinder portion 36 that protrude from the outer side in the radial direction at both the left and right outer ends in the width direction and closer to the rear end. A female lock 45 is formed. The female side lock portion 45 is formed so as to be positioned in a female side inner region R described later. The rear end portion of the female side lock portion 45 is inclined inward in the radial direction toward the rear, and facilitates an operation in which a female side lock receiving portion 46 of the electric wire cover 12 described later rides on the female side lock portion 45. A guide surface 34 is formed. In the inner peripheral surface of the outer cylindrical portion 37, a region facing the female side lock portion 45 is formed with a male side lock receiving portion relief groove 47 that extends in the front-rear direction and is retracted radially outward. Thus, when the electric wire cover 12 is attached to the female housing 11, the female cover attaching wall 44 and the male lock receiving portion 33 are prevented from interfering with each other. Further, in the connecting wall 16, a part located in front of the female side lock part 45 is formed with a die cutting hole 48 for punching out a mold when the female side lock part 45 is formed.

  An electric wire cover 12 is attached to the electric wire drawing surface 29 of each of the male and female housings 10 and 11. As shown in FIG. 1, the wire cover 12 is made of a synthetic resin, and includes a main body portion 49 that covers the electric wire 21 led out from the wire drawing surface 29, and a mounting portion 31 that is mounted on the respective housings 10 and 11 of the male and female. It is equipped with. The electric wire cover 12 is attached to the female housing 11 so that the mounting portion 31 is on the lower side in FIG. 1, while the male housing 10 is mounted with the mounting portion 31 on the upper side in FIG. 1. It can be mounted on.

  As shown in FIGS. 10 and 11, the main body 49 is composed of first and second main bodies 49A and 49B that are halved from each other. Both the main body portions 49A and 49B are formed in a container shape with the upper part opened, and are formed to be openable and closable via a hinge 50 formed on the side wall. A lock protrusion 51 protruding outward is formed at a position near the upper end of the side wall of the first main body 49A where the hinge 50 is not formed, while the second main body 49A is formed. A locking piece 52 protruding upward is formed at a position near the upper end of the side wall of the 49 side wall on which the hinge 50 is not formed. When both the main body portions 49A and 49B are closed, as shown in FIG. 12, both the main body portions 49A and 49B are locked by elastically locking the locking piece 52 and the locking projection 51. Yes. In both the main body portions 49A and 49B, two semicircular grooves are formed side by side in the width direction at the upper edge of the left wall and the right wall in FIG. The electric wire receiving groove 53 forms a space having a circular cross section when the electric wire receiving grooves 53 face each other when both the body portions 49A and 49B are closed, and the electric wire 21 is accommodated in this space. It has become.

  In the right wall of the first main body portion 49A in FIG. 11, a mounting portion 31 that protrudes to the right in FIG. The mounting portion 31 has a curved plate shape as shown in FIG. Of the both ends of the mounting portion 31 in the width direction, the wire cover 12 is engaged with the male and female housings 10 and 11 by engaging the male and female locking portions 32 and 45 at positions closer to the right end in FIG. Male and female lock receiving portions 33 and 46 for attachment are formed. The female side lock receiving portion 46 protrudes inward in the radial direction of the main body 49 from the inner peripheral surface of the mounting portion 31, while the male side lock receiving portion 33 extends from the outer peripheral surface of the mounting portion 31 to the main body portion 49. It protrudes radially outward. Thereby, the female side lock receiving part 46 is formed so as to be shifted inward in the radial direction from the male side lock receiving part 33. The female side lock receiving portion 46 is inclined to the right in FIG. 11 and radially outward of the main body 49, and the female side lock receiving portion 46 can easily move on the female side lock portion 45. A guide surface 34 is formed. On the other hand, the male side lock receiving portion 33 is inclined inwardly in the radial direction of the main body 49 toward the right in FIG. 11, and the male side lock portion 32 can easily move on the male side lock receiving portion 33. A guide surface 34 is formed. The male and female lock receiving portions are formed at the corresponding positions inside and outside the mounting portion 31 and arranged in the radial direction of the main body portion 49. In the state where the wire cover 12 is attached to both the housings 10 and 11, the radial direction of the main body portion 49 and the radial direction of both the housings 10 and 11 coincide with each other.

  As shown in FIG. 14, in the female housing 11, the region behind the outer end of the outer cylinder portion 37 and radially outward from the outer peripheral surface of the inner cylinder portion 36 is the female lock portion described above. A female-side lock portion formation allowable region F in which the formation of 45 is permitted. As described above, the outer peripheral surface of the inner cylindrical portion 36 is a seal surface on the female housing 11 side of the seal surfaces on which the housings 10 and 11 are sealed. For this reason, when the female housing 11 is formed by a mold that opens in the front-rear direction, a die-cutting space that communicates with a space outside the female housing 11 is located radially inward of the outer peripheral surface of the inner cylindrical portion 36. Since it cannot be formed, the formation of the female side lock portion 45 cannot be allowed.

  On the other hand, in the male housing 10, the formation of the male lock portion 32 described above is allowed in a region behind the rear end of the hood portion 15 and radially outward from the outer peripheral surface of the hood portion 15. The male side lock portion formation allowable region M is set. As described above, the inner peripheral surface of the hood portion 15 is a seal surface on the male housing 10 side among the seal surfaces on which the housings 10 and 11 are sealed. For this reason, when the male housing 10 is formed by a mold that opens in the front-rear direction, it communicates with the space outside the male housing 10 at a position radially inward of the outer peripheral surface of the hood portion 15 constituting the seal surface. Since the die-cutting space cannot be formed, the formation of the male lock portion 32 cannot be allowed.

  Of the female-side lock portion formation allowable region F, a region radially outward from the outer peripheral surface of the outer cylindrical portion 37 of the female housing 11 is a female-side outer region T. On the other hand, in the male side lock portion formation allowable region M, a region radially outward from the outer peripheral surface of the outer cylindrical portion 37 in a state where both housings 10 and 11 are properly fitted is a male side outer region Q. . Since both outer regions are allowed to form male and female lock portions 32 and 45, male and female lock portions 32 and 45 are formed at corresponding positions of the respective housings 10 and 11. The wire cover 12 can be shared by forming a lock receiving portion common to the male and female lock portions 32 and 45.

  However, when the lock portions are formed in both outer regions Q and T, the lock portions are formed radially outward from the outer peripheral surface of the outer cylinder portion 37, and the waterproof connector expands radially outward. There is a problem that.

  In view of this point, in the present embodiment, in the male-side lock portion formation allowable region M of the male housing 10, the inner side in the radial direction is more than the outer peripheral surface of the outer cylindrical portion 37 in a state where both housings 10 and 11 are properly fitted. This region is the male inner region P, and the male lock portion 32 is formed in the male inner region P. As a result, the male side lock receiving portion 33 of the electric wire cover 12 is disposed radially inward from the outer peripheral surface of the outer cylinder portion 37, so that the mounting portion 31 is positioned more than the outer peripheral surface of the outer cylinder portion 37. It becomes possible to arrange | position to radial direction inner side, and it can suppress that the male housing 10 and the electric wire cover 12 expand radially outward.

  On the other hand, in the female-side lock portion formation allowable region F of the female housing 11, a region radially inward from the inner peripheral surface of the outer cylindrical portion 37 is defined as a female-side inner region R. The side lock portion 45 is formed. As a result, the male side lock receiving portion 33 of the electric wire cover 12 is disposed radially inward from the inner peripheral surface of the outer cylindrical portion 37, so that the mounting portion 31 is positioned more than the outer peripheral surface of the outer cylindrical portion 37. It becomes possible to arrange | position to radial inside, and it can suppress that the female housing 11 and the electric wire cover 12 expand radially outward.

  Further, the female side locking portion 45 is formed in the female side inner region R and the male side locking portion 32 is formed in the male side inner region P, so that the female side locking portion 45 is more than the male side locking portion 32. Is also formed to be shifted inward in the radial direction.

  In addition, in the female-side lock portion formation allowable region F of the female housing 11, the region behind the outer cylindrical portion 37 (the region surrounded between the female-side outer region T and the female-side inner region R) is the female side. The intermediate region S is used. Since the female-side intermediate region S is located behind the outer cylindrical portion 37, depending on the mold that opens in the fitting direction of the female housing 11, a female-side lock portion 45 may be formed in the female-side intermediate region S. I don't think I can. However, as will be described later in another embodiment (1), a part of the outer cylindrical portion 37 is bulged outwardly in the radial direction to form a die-cutting space 54, whereby the female-side intermediate region S is formed. Also, the female side lock portion 45 can be formed.

  Then, the effect | action and effect of this embodiment are demonstrated. First, the waterproof connector according to the present embodiment is assembled as follows. The female terminal fitting 35 is disposed by crimping the barrel portion 22 to the end of the electric wire 21. The female terminal fitting 35 is inserted into the cavity 20 from the rear side of the inner cylindrical portion 36 of the female housing 11 and is retained and locked by the lance 25, and the retainer 26 is attached to the front end portion of the inner cylindrical portion 36. Thus, the female terminal fitting 35 is double-locked. Thereby, the electric wire 21 is led out from the electric wire drawing surface 29 on the rear surface of the inner cylindrical portion 36.

  From the rear of the female housing 11, the mounting portion 31 is inserted into the space between the female-side cover mounting wall 44 and the inner cylinder portion 36 with the mounting portion 31 of the wire cover 12 facing downward. Then, the guide surface 34 formed at the front end of the female side lock receiving portion 46 comes into contact with the guide surface 34 of the female side lock portion 45 from the rear. At this time, the male side lock receiving portion 33 of the mounting portion 31 enters the male side lock receiving portion relief groove 47. When the wire cover 12 is further pressed forward, the female side lock receiving portion 46 rides on the female side lock portion 45 and bends and deforms radially outward. When the electric wire cover 12 is further pressed forward, the female side lock receiving portion 46 is deformed to return radially inward, and the female side lock receiving portion 46 is engaged with the female side lock portion 45 from the front, whereby the electric wire cover The rearward displacement of the wire 12 is restricted, and the wire cover 12 is attached to the female housing 11. At this time, the front end of the main body 49 of the electric wire cover 12 abuts from the rear end with the rear end of the inner cylinder portion 36, so that the electric wire cover 12 is restricted from being displaced forward.

  Next, the male terminal fitting 13 is disposed by crimping the barrel portion 22 to the end of the electric wire 21. The male terminal fitting 13 is inserted into the cavity 20 from the rear of the terminal accommodating portion 14 of the male housing 10, and is retained and locked by a lance 25, and a retainer 26 is attached to the front end portion of the terminal accommodating portion 14. Thus, the male terminal fitting 13 is double-locked. Thereby, the electric wire 21 is led out from the electric wire drawing surface 29 on the rear surface of the terminal accommodating portion 14.

  From the rear of the male housing 10, the mounting portion 31 is inserted into the space between the male-side cover mounting wall 30 and the terminal accommodating portion 14 with the mounting portion 31 of the wire cover 12 facing upward. Then, the guide surface 34 formed at the front end of the male lock receiving portion 33 comes into contact with the guide surface 34 of the male lock portion 32 from behind. When the electric wire cover 12 is further pressed forward, the male side lock portion 32 rides on the male side lock receiving portion 33, so that the male side cover mounting wall 30 formed with the male side lock portion 32 bends radially outward. Deform. When the electric wire cover 12 is further pressed forward, the male side cover mounting wall 30 is deformed to return radially inward, and the male side lock receiving portion 33 is engaged with the male side lock portion 32 from the front side. The rearward displacement of the wire 12 is restricted, and the wire cover 12 is attached to the male housing 10. At this time, the front end of the main body 49 of the wire cover 12 abuts the rear end of the terminal accommodating portion 14 from the rear, whereby the wire cover 12 is restricted from being displaced forward.

  The male and female housings 10 and 11 in which the male and female terminal fittings 13 and 35 are accommodated and the wire cover 12 is attached are fitted to each other. Then, the hood portion 15 of the male housing 10 enters a fitting space 38 formed between the outer cylinder portion 37 and the inner cylinder portion 36 of the female housing 11. When the fitting of both housings 10 and 11 proceeds, the lock portion of the hood portion 15 comes into contact with the front end of the lock arm 18 from the front, and the front end of the lock arm 18 rides on the lock projection 17 and bends and deforms upward. . When the housings 10 and 11 are further fitted and the housings 10 and 11 are properly fitted, the lock arm 18 is restored and deformed, and the locking hole 19 of the lock arm 18 and the lock projection 17 are engaged. By doing so, both the housings 10 and 11 are hold | maintained in a regular fitting state. At this time, the tab 24 of the male terminal fitting 13 is inserted into the connecting portion 39 of the female terminal fitting 35 and pressed by the elastic contact piece, whereby the male terminal fitting 13 and the female terminal fitting 35 are electrically connected. The Further, when the inner peripheral surface of the hood portion 15 and the lip 41 of the seal ring 40 are in close contact with each other, a seal between the female housing 11 and the male housing 10 is achieved.

  When the two housings 10 and 11 are separated from each other, the engagement between the lock projection 17 and the locking hole 19 is released by pressing the rear end edge of the lock arm 18 downward and swinging the lock arm 18. And what is necessary is just to pull both housings 10 and 11 back.

  As described above, according to this embodiment, in order to attach the wire cover 12 to the female housing 11, the female side lock portion 45 of the female housing 11 and the female side lock receiving portion 46 of the wire cover 12 are engaged. You can combine them. In order to attach the electric wire cover 12 to the male housing 10, the male side lock portion 32 of the male housing 10 and the male side lock receiving portion 33 of the electric wire cover 12 may be engaged. Thus, since the electric wire cover 12 which makes a common form can be shared between the male and female housings 10 and 11, the manufacturing cost of the electric wire cover 12 can be reduced.

  Further, since the female side lock portion 45 is formed in the female side inner region R, the mounting portion 31 on which the female side lock receiving portion 46 is formed is a height position in the radial direction of the outer peripheral surface of the outer cylinder portion 37. Can be arranged radially inward. Moreover, since the male side lock part 32 is formed in the male side inner area | region P, the mounting part 31 in which the male side lock receiving part 33 is formed is the height position of the outer peripheral surface of the outer cylinder part 37 in the radial direction. Can be arranged radially inward. As described above, the mounting portion 31 is arranged radially inward of the outer circumferential surface of the outer cylindrical portion 37 in both the male and female housings 10 and 11. Therefore, the waterproof connector can be prevented from expanding in the radial direction.

  In addition, since the male side lock receiving portion 33 and the female side lock receiving portion 46 are arranged in the radial direction inside and outside the mounting portion 31, the male and female lock receiving portions 33, 46 are arranged in the front-rear direction. Compared with the case where it is formed, the size of the electric wire cover 12 in the front-rear direction can be reduced.

<Embodiment 2>
Next, Embodiment 2 of the present invention will be described with reference to FIG. In the present embodiment, of the outer peripheral surface of the terminal housing portion 14 of the male housing 10, the region from the rear of the connecting wall 16 to the front of the rear end of the terminal housing portion 14 is the same as the outer peripheral surface of the hood portion 15. It is formed substantially flush. A pair of male locking portions 32 projecting radially outward are formed at the left and right outer ends of the terminal accommodating portion 14 in the width direction. The male side lock portion 32 is positioned radially inward from the outer peripheral surface of the outer cylindrical portion 37 of the female housing 11 in a state where both the male and female housings 10 and 11 are properly fitted. It is formed in the region P. At the rear end of the male-side lock portion 32, a guide surface 34 for facilitating the operation of the male-side lock receiving portion 33 formed on the mounting portion 31 of the electric wire cover 12 climbs inward in the radial direction. It is inclined to the direction.

  On the other hand, the female housing 11 has a pair of female side locks projecting radially outward at positions on the left and right outer ends in the width direction and closer to the rear end of the outer peripheral surface of the inner cylinder portion 36. A portion 45 is formed. The female-side lock portion 45 is positioned radially inward from the radial height position of the inner peripheral surface of the outer cylinder portion 37 and is formed in the female-side inner region R. ing. At the rear end of the female side lock portion 45, a guide surface 34 for facilitating the operation of the female side lock receiving portion 46 formed on the mounting portion 31 of the electric wire cover 12 climbs inward in the radial direction. It is inclined to the direction.

  The male side lock portion 32 is formed in the male side inner region P, and the female side lock portion 45 is formed in the female side inner region R. Are also displaced inward in the radial direction.

  A pair of male lock receiving portions 33 projecting radially inward from the inner peripheral surface of the mounting portion 31 are formed at both ends in the width direction at positions closer to the front end of the mounting portion 31 of the wire cover 12. ing. A pair of female lock receiving portions 46 are located radially inward from the inner peripheral surface of the mounting portion 31 at a position shifted radially inward from the male lock receiving portion 33 behind the male lock receiving portion 33. It protrudes toward the direction. At the front ends of the male and female lock receiving portions 33 and 46, a guide surface 34 for facilitating the movement of the male and female lock receiving portions 33 and 46 on the male and female lock portions 32 and 45 is provided forward. It is formed to incline radially outward.

  The outer peripheral surface of the mounting portion 31 of the wire cover 12 is substantially flush with the outer peripheral surface of the outer cylindrical portion 37 or radially inward when both the male and female housings 10 and 11 are properly fitted. It has become.

  Other configurations are substantially the same as those of the first embodiment, and the same portions are denoted by the same reference numerals and the corresponding descriptions are omitted.

  Then, the effect | action and effect of this embodiment are demonstrated. From the rear of the female housing 11, the electric wire cover 12 is inserted into the space between the female side cover mounting wall 44 and the inner cylinder portion 36. Then, the female side lock receiving part 46 of the mounting part 31 rides on the female side lock part 45 and bends and deforms radially outward. When the electric wire cover 12 is further pressed forward, the female side lock receiving portion 46 is deformed to return radially inward, and the female side lock receiving portion 46 is engaged with the female side lock portion 45 from the front, whereby the electric wire cover The rearward displacement of the wire 12 is restricted, and the wire cover 12 is attached to the female housing 11.

  Further, the electric wire cover 12 is inserted into the space between the male cover attaching wall 30 and the terminal accommodating portion 14 from the rear of the male housing 10. Then, the male side lock receiving part 33 of the mounting part 31 rides on the male side lock part 32 and bends and deforms radially outward. When the electric wire cover 12 is further pressed forward, the male side lock receiving portion 33 is restored and deformed radially inward, and the male side lock receiving portion 33 is engaged with the male side lock portion 32 from the front side. The rearward displacement of the wire 12 is restricted, and the wire cover 12 is attached to the male housing 10.

  As described above, according to the present embodiment, the male and female lock portions 32 and 45 can be formed in the existing structures of the terminal accommodating portion 14 of the male housing 10 and the inner cylinder portion 36 of the female housing 11, respectively. Even in such a method, the male and female lock receiving portions 33 and 46 are arranged in the front-rear direction so as to be displaced in the radial direction, so that the male and female lock portions 32 and 45 are respectively disposed in the male and female inner regions. It is possible to prevent the waterproof connector from expanding in the radial direction.

<Embodiment 3>
Next, Embodiment 3 of the present invention will be described with reference to FIG. In the present embodiment, a male side cover attachment wall 30 for extending the rearward and attaching the wire cover 12 to the male housing 10 is formed at the rear part of the hood portion 15 of the male housing 10. The outer peripheral surface of the male cover mounting wall 30 is substantially the same surface as the outer peripheral surface of the outer cylindrical portion 37 of the female housing 11 to be described later or in the radial direction in a state where both the male and female housings 10 and 11 are properly fitted. Accordingly, the male cover mounting wall 30 is formed in the male inner region P. A pair of male locking portions 32 projecting inward in the radial direction are formed at the positions on the left and right outer ends in the width direction and closer to the rear end of the inner peripheral surface of the male cover mounting wall 30. Has been. The male side lock portion 32 is also formed so as to be located in the male side inner region P. The rear end portion of the male side lock portion 32 is inclined radially outwardly toward the rear, and the male side lock portion 32 can easily ride on a male side lock receiving portion 33 of the electric wire cover 12 described later. A guide surface 34 is formed to incline radially outward toward the rear.

  On the other hand, in the female housing 11, the outer cylinder portion 37 extends rearward from the rear end of the connecting wall 16 and the outer peripheral surface thereof is substantially flush with the outer peripheral surface of the outer cylinder portion 37. A mounting wall 44 is formed. A pair of female locking portions 45 projecting outward in the radial direction are formed on the inner peripheral surface of the female side cover mounting wall 44 at both the left and right outer ends in the width direction and closer to the front end. ing. The female-side lock portion 45 is positioned radially inward from the radial height position of the inner peripheral surface of the outer cylinder portion 37 and is formed in the female-side inner region R. The rear end of the female side lock part 45 is inclined radially outwardly toward the rear, and the female side lock part 45 facilitates the operation of climbing on the female side lock receiving part 46 of the wire cover 12. The guide surface 34 is formed to incline radially outward toward the rear. In the inner peripheral surface of the female side cover mounting wall 44, a male side lock receiving part relief groove 47 is formed in the region behind the female side lock part 45, extending in the front-rear direction and retracted radially outward. Thus, when the wire cover 12 is attached to the female housing 11, the female side cover mounting wall 44 and the male side lock receiving portion 33 are prevented from interfering with each other. Further, in the connecting wall 16, a part located in front of the female side lock part 45 is formed with a die cutting hole 48 for punching out a mold when the female side lock part 45 is formed.

  The male side lock portion 32 is formed in the male side inner region P, and the female side lock portion 45 is formed in the female side inner region R. Are also displaced inward in the radial direction.

  A pair of female lock receiving portions 46 projecting radially outward from the outer peripheral surface of the mounting portion 31 are formed at both ends in the width direction at positions closer to the front end of the mounting portion 31 of the wire cover 12. Yes. A pair of male lock receiving portions 33 are disposed radially outward from the inner peripheral surface of the mounting portion 31 at a position shifted radially outward from the female lock receiving portion 46 behind the female lock receiving portion 46. It protrudes toward the direction. At the front ends of the male and female lock receiving portions, a guide surface 34 for facilitating the movement of the male and female lock receiving portions 32 and 45 on the respective male and female lock receiving portions 33 and 46 has a diameter toward the front. Inclined inward in the direction.

  Other configurations are substantially the same as those of the first embodiment, and the same portions are denoted by the same reference numerals and the corresponding descriptions are omitted.

  Then, the effect | action and effect of this embodiment are demonstrated. From the rear of the female housing 11, the electric wire cover 12 is inserted into the space between the female side cover mounting wall 44 and the inner cylinder portion 36. Then, the female side lock portion 45 of the female side cover mounting wall 44 rides on the female side lock receiving portion 46 and is bent and deformed radially outward. When the electric wire cover 12 is further pressed forward, the female side lock portion 45 is restored and deformed radially inward, and the female side lock receiving portion 46 is engaged with the female side lock portion 45 from the front, whereby the electric wire cover 12 is engaged. Is displaced rearward, and the wire cover 12 is attached to the female housing 11.

  Further, the electric wire cover 12 is inserted into the space between the male cover attaching wall 30 and the terminal accommodating portion 14 from the rear of the male housing 10. Then, the male side lock portion 32 of the male side cover mounting wall 30 rides on the male side lock receiving portion 33 and is bent and deformed radially outward. When the electric wire cover 12 is further pressed forward, the male side lock portion 32 is restored and deformed radially inward, and the male side lock receiving portion 33 is engaged with the male side lock portion 32 from the front, whereby the electric wire cover 12 is engaged. Is displaced rearward, and the wire cover 12 is attached to the male housing 10.

  As described above, according to the present embodiment, the male housing 10 is newly provided with the male cover mounting wall 30, and the female housing 11 is newly provided with the female side cover mounting wall 44. Male and female locking portions 32, 45 can be formed on the mounting walls 30, 44, respectively. Even in such a method, the male and female lock receiving portions 33 and 46 are arranged in the front-rear direction so as to be displaced in the radial direction, so that the male and female lock portions 32 and 45 are respectively disposed in the male and female inner regions. It is possible to prevent the waterproof connector from expanding in the radial direction.

<Reference Example 1>
Subsequently, Reference Example 1 will be described with reference to FIG. In this reference example, the outer peripheral surface of the terminal accommodating portion 14 of the male housing 10 is formed so as to be substantially flush with the outer peripheral surface of the outer cylindrical portion 37 in a state where both the male and female housings 10 and 11 are properly fitted. The male lock portion 32 is formed so as to protrude radially outward from the outer peripheral surface of the terminal accommodating portion 14.

  On the other hand, the outer cylinder part 37 of the female housing 11 extends rearward, and a female side lock part 45 is formed so as to protrude radially outward from the outer peripheral surface of the outer cylinder part 37.

  The male and female lock portions are formed radially outward from the outer peripheral surface of the outer cylindrical portion 37 in a state where the male and female housings 10 and 11 are properly fitted, and the female outer region T and the male side, respectively. It is formed in the outer region Q. Thus, the male and female lock portions 32 and 45 are formed in the male and female outer regions T and Q, respectively, and both are formed in the male and female lock portions 32 and 45 formation allowable region. Even when formed by a mold that opens along the line, the female side lock part 45 and the male side lock part 32 can be formed at corresponding positions.

  A mounting portion 31 is formed on the electric wire cover 12 so as to cover the electric wire drawing surfaces 29 of both the housings 10 and 11, and protrudes radially inward from the inner peripheral surface of the mounting portion 31 to the male side. A lock receiving portion 55 that can be engaged with both the lock portion 32 and the female side lock portion 45 is formed.

  Since the configuration other than the above is substantially the same as that of the first embodiment, the same structure is denoted by the same reference numeral, and redundant description is omitted.

  As described above, according to Reference Example 1, the lock receiving portion 55 that can be engaged with both the male and female lock portions 32 and 45 formed in the male and female housings 10 and 11 is formed in the mounting portion 31 of the wire cover 12. it can. Thereby, since the electric wire cover 12 can be shared with respect to the male and female housings 10 and 11, the cost can be reduced.

<Reference Example 2>
Subsequently, Reference Example 2 will be described with reference to FIG. In this reference example, a male cover attaching portion 56 that protrudes radially outward from the outer peripheral surface of the terminal accommodating portion 14 of the male housing 10 and forms a bowl shape as a whole is formed. From the inner peripheral surface of the portion 56, a male lock portion 32 is formed so as to protrude radially inward. The male side lock portion 32 is positioned radially outward from the outer peripheral surface of the outer cylinder portion 37 in a state where both the male and female housings 10 and 11 are properly fitted, and is provided in the male side outer region Q. Is formed.

  On the other hand, a female-side cover mounting portion 57 that protrudes radially outward from the outer peripheral surface of the outer cylindrical portion 37 of the female housing 11 and has a bowl shape as a whole is formed. A female-side lock portion 45 is formed so as to protrude radially inward from the inner peripheral surface. The female side lock portion 45 is positioned radially outward from the outer peripheral surface of the outer cylinder portion 37, and is formed in the female side outer region T.

  Thus, the male and female lock portions 32 and 45 are formed in the male and female outer regions T and Q, respectively, and both are formed in the male and female lock portions 32 and 45 formation allowable region. Even when formed by a mold that opens along the line, the female side lock part 45 and the male side lock part 32 can be formed at corresponding positions.

  A mounting portion 31 is formed on the electric wire cover 12 so as to cover the electric wire drawing surfaces 29 of both the housings 10 and 11, and protrudes radially outward from the outer peripheral surface of the mounting portion 31 to lock the male side lock. A lock receiving portion 55 that can be engaged with both the portion 32 and the female lock portion 45 is formed.

  Since the configuration other than the above is substantially the same as that of the first embodiment, the same structure is denoted by the same reference numeral, and redundant description is omitted.

  As described above, according to Reference Example 1, the lock receiving portion 55 that can be engaged with both the male and female lock portions 32 and 45 formed in the male and female housings 10 and 11 is formed in the mounting portion 31 of the wire cover 12. it can. Thereby, since the electric wire cover 12 can be shared with respect to the male and female housings 10 and 11, the cost can be reduced.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.

  (1) As shown in FIG. 19, a part of the outer cylinder portion 37 is bulged outward in the radial direction to form a die cutting space 54, and a female side locking portion 45 is formed in a region behind the die cutting space 54. May be formed. Thereby, the female side lock part 45 can be formed in the female side intermediate area S mentioned above. As a result, a common lock receiving portion 55 that can be engaged with both the lock portions 32 and 45 of the male and female housings 10 and 11 is formed in the mounting portion 31 of the electric wire cover 12. The wire cover 12 can be attached.

  (2) Both the male and female lock portions 32 and 45 may be arranged at positions shifted in the circumferential direction of the respective housings 10 and 11, and correspondingly, both the male and female lock receiving portions 33 and 46 are also provided. The mounting portion 31 may be disposed at a position shifted in the circumferential direction.

  (3) In the present embodiment, the female side lock receiving portion 46 and the male side lock receiving portion 33 are formed in the mounting portion 31, but the present invention is not limited to this, and the electric wire cover 12 has a female side lock receiving portion. It is good also as a structure which provides separately the female side mounting part in which the part 46 is formed, and the male side mounting part in which the male side lock | rock receiving part 33 is formed.

  (4) In the present embodiment, the wire cover 12 is assembled to the male and female housings 10 and 11 before the housings 10 and 11 are fitted. However, the present invention is not limited to this. It is good also as what is assembled | attached to each housing 10 and 11 after carrying out regular fitting of 10 and 11.

  (5) In the present embodiment, the mounting portion 31 of the electric wire cover 12 attached to the female housing 11 is arranged to be positioned on the lower side, and the mounting portion 31 of the electric wire cover 12 attached to the male housing 10 is positioned on the upper side. However, the present invention is not limited to this, and both the mounting portions 31 of the wire cover 12 attached to both the male and female housings 10 and 11 may be positioned on the upper side, or both may be on the lower side. You may arrange | position so that it may be located in. Moreover, it is good also as a structure arrange | positioned so that the mounting part 31 of the electric wire cover 12 attached to the female housing 11 may be located above, and the attaching part 31 of the electric wire cover 12 attached to the male housing 10 may be located below. .

Sectional drawing of the waterproof connector which concerns on Embodiment 1 Sectional drawing which shows the state by which the electric wire cover was attached to the male housing in which the male terminal metal fitting was accommodated Rear view of male housing Plan sectional view showing male housing and wire cover Plan sectional view showing a state where the wire cover is attached to the male housing Sectional drawing which shows the state by which the electric wire cover was attached to the female housing in which the female terminal metal fitting was accommodated Rear view of female housing Plan sectional view showing female housing and wire cover Plan sectional view showing a state where the wire cover is attached to the female housing The front view of the electric wire cover which shows the state before attaching the 1st and 2nd main-body part. The top view of the electric wire cover which shows the state before attaching the 1st and 2nd main-body part. The front view which shows the electric wire cover of the state which assembled | attached the 1st and 2nd main-body part. Sectional drawing which shows the electric wire cover of the state which assembled | attached the 1st and 2nd main-body part. Sectional drawing which shows the state which assembled | attached the female housing, the male housing, and the electric wire cover Sectional drawing which shows the state which assembled | attached the female housing, the male housing, and the electric wire cover in the waterproof connector which concerns on Embodiment 2. FIG. Sectional drawing which shows the state which assembled | attached the female housing, the male housing, and the electric wire cover in the waterproof connector which concerns on Embodiment 3. FIG. The partially expanded sectional view which shows the state which assembled | attached the female housing, the male housing, and the electric wire cover in the waterproof connector which concerns on the reference example 1. The partially expanded sectional view which shows the state which assembled | attached the female housing, the male housing, and the electric wire cover in the waterproof connector which concerns on the reference example 2. The partially expanded sectional view which shows the state which assembled | attached the female housing, the male housing, and the electric wire cover in the waterproof connector which concerns on other embodiment (1).

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Male housing 11 ... Female housing 12 ... Electric wire cover 13 ... Male terminal metal fitting 14 ... Terminal accommodating part 15 ... Hood part 21 ... Electric wire 29 ... Electric wire extraction surface 30 ... Male side cover mounting wall 31 ... Mounting part 32 ... Male side lock 33: Male side lock receiving part 35 ... Female terminal fitting 36 ... Inner cylinder part 37 ... Outer cylinder part 38 ... Fitting space 44 ... Female side cover mounting wall 45 ... Female side lock part 46 ... Female side lock receiving part 49 ... Body part F ... Female-side lock part formation permissible area M ... Male-side lock part formation permissible area P ... Male-side inner area R ... Female-side inner area

Claims (5)

The male and female housings that can be fitted to each other are formed by a mold that opens the mold along the fitting direction of both the housings.
The female housing is provided with an inner cylinder portion that accommodates a female terminal fitting disposed at an end of the electric wire, and an outer cylinder portion that surrounds the inner cylinder portion, and the inner cylinder portion is the outer cylinder. It extends behind the rear end of the part,
The male housing is provided with a terminal accommodating portion that accommodates a male terminal fitting disposed at the end of the electric wire, and a hood portion that opens to the front of the terminal accommodating portion and opens forward in the fitting direction. And
By inserting the hood part into a fitting space formed between the inner cylinder part and the outer cylinder part, both the inner peripheral surface of the hood part and the outer peripheral surface of the inner cylinder part are inserted. A waterproof connector designed to be sealed between housings,
Each of the housings has an electric wire cover attached to each of the electric wire drawing surfaces, and the electric wire cover is attached to the housing and a main body that covers the electric wires led out from the electric wire drawing surface. A mounting part is provided,
In the female housing, a region rearward of the rear end of the outer cylinder part and radially outward from the outer peripheral surface of the inner cylinder part is a female side for attaching the wire cover to the female housing. It is a female side lock part formation allowable area where the formation of the lock part is allowed,
In the male housing, a region behind the rear end of the hood portion and radially outward from the radial height position of the outer peripheral surface of the hood portion is configured such that the wire cover is placed on the male housing. It is a male side lock part formation permissible area where the formation of the male side lock part for attachment is allowed,
The electric wire cover has a common form attached to both the housings, and the mounting portion engages with the female side lock portion provided in the female side lock portion formation allowable region. A waterproof connector, wherein a female side lock receiving portion is provided, and a male side lock receiving portion that engages with a male side lock portion provided in the male side lock portion formation allowable region is provided. The female-side lock portion is formed in a female-side inner region radially inward from the radial height position of the inner peripheral surface of the outer cylinder portion in the female-side lock portion formation allowable region,
The male-side lock portion is a male that is radially inward from the radial height position of the outer peripheral surface of the outer cylinder portion in the male-side lock portion formation allowable region in a state where the male and female housings are fitted. Formed in the side inner area,
And in the inner region of each housing, the female side lock part is arranged at a position shifted radially inward from the male side lock part,
On the other hand, correspondingly, the female side lock receiving portion is also formed in the mounting portion in a state of being displaced radially inward from the male side lock receiving portion. Waterproof connector. The female-side lock portion is projected radially outward from the outer peripheral surface of the inner cylinder portion,
The male side lock portion is projected radially outward from the outer peripheral surface of the terminal accommodating portion,
And in the inner region of each housing, the female side lock part is arranged at a position shifted radially inward from the male side lock part,
On the other hand, the lock receiving portion of the male and female is projected radially inward from the inner peripheral surface of the mounting portion,
The male side lock receiving part is formed at a position near the front end of the mounting part, and the female side lock receiving part is arranged in a radial direction behind the male side lock receiving part than the male side lock receiving part. 3. The waterproof connector according to claim 2, wherein the waterproof connector is formed side by side in the front-rear direction while being displaced inward. The outer cylinder portion is extended rearward, and a female side cover mounting wall is formed so that an outer peripheral surface thereof is substantially flush with an outer peripheral surface of the outer cylindrical portion, and the female side lock portion is formed by the female side cover. Projected radially inward from the inner peripheral surface of the mounting wall,
A male side cover mounting wall is formed in the male side inner region, and the male side locking portion is projected radially inward from an inner peripheral surface of the male side cover mounting wall,
And in the inner region of each housing, the female side lock part is arranged at a position shifted radially inward from the male side lock part,
On the other hand, the lock receiving portion of the male and female is projected outward from the outer peripheral surface of the mounting portion,
The female side lock receiving part is formed at a position closer to the front end of the mounting part, and the male side lock receiving part is located more radially than the female side lock receiving part behind the female side lock receiving part. 3. The waterproof connector according to claim 2, wherein the waterproof connector is formed side by side in the front-rear direction while being displaced outward. The female-side lock portion is projected radially outward from the outer peripheral surface of the inner cylinder portion,
A male side cover mounting wall is formed in the male side inner region, and the male side locking portion is projected radially inward from an inner peripheral surface of the male side cover mounting wall,
And in the inner region of each housing, the female side lock part is arranged at a position shifted radially inward from the male side lock part,
On the other hand, the female side lock receiving portion is formed inside the mounting portion, and the male side lock receiving portion is formed outside the mounting portion. The waterproof connector according to claim 2, wherein the waterproof connector is arranged in a direction.

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