JP2006147474A - Waterproof connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterproof connector which combines easy assembling of sealing components and prevention of dropping off. <P>SOLUTION: The waterproof connector 1 comprises a male housing 30, a female housing 10 which can be fitted with the male housing 30, and rubber ring 20. The female housing 10 has a locking projection 51 with a guiding surface 54. A locking recession 24 formed in the drop-off avoiding part 22 of the rubber ring 20 is fitted to a locking projection 53 prepared in the locking projection 51 to make the controlling surface 53a of the locking projection 53 in contact with the controlled surface 24a of the locking recession 24, and to control bending of the drop-off avoiding part 22 toward inner circumference. A pressing part 26 having pressing surface 25 to which attachment components can be pressed is prepared adjacently to the drop-off avoiding part 22. A monitoring window 50 is formed in a position from a back wall 12 to the external cylinder 13 of the female housing 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a waterproof connector.

  2. Description of the Related Art Conventionally, as a waterproof connector provided with a sealing member at a fitting portion of both male and female housings, one described in Patent Document 1 is known. One of the housings includes an inner wall portion that forms a terminal accommodating portion, a rising rear wall that rises from the inner wall portion toward the outer peripheral direction, and a continuous wall that extends from the inner wall portion around the inner wall portion. And an enclosing outer wall. Then, the seal member and the other housing are inserted into the fitting space surrounded by the inner wall portion, the rising rear wall, and the outer wall portion.

  The seal member is formed in a cylindrical shape so as to be fitted to the outer periphery of the inner wall portion, and is provided with a flange portion that protrudes toward the outer peripheral direction at the end portion in the insertion direction. Further, the flange portion is provided with a fitting protrusion protruding toward the back in the insertion direction. On the other hand, in the housing, the inner wall of the outer wall portion is provided with a locking projection protruding toward the inner circumferential direction, and a fitting hole for fitting the fitting projection of the seal member is formed in the rear wall. ing.

Then, when the seal member is mounted on the housing, the seal member is placed in the back of the fitting space until the flange portion of the seal member fits in the back of the locking protrusion and the fitting protrusion is fitted in the fitting hole. Push into. When the seal member is pushed in all the way, the surface on the near side of the flange portion is brought into contact with the surface on the back side of the locking projection so that the seal member does not come out of the housing.
JP-A-7-94234

  However, in the case of having the structure for preventing the seal portion from being removed as described above, when the seal member is inserted, the surface on the back side of the flange portion and the surface on the near side of the locking projection come into contact with each other and are smooth. Can not be inserted easily, and there is a problem that assembly work is not easy.

  The present invention has been completed based on the above-described circumstances, and an object thereof is to provide a waterproof connector that can achieve both easy assembly of a sealing member and prevention of withdrawal.

  As means for achieving the above object, the invention of claim 1 is characterized in that a terminal accommodating portion capable of accommodating a terminal fitting, a back wall portion raised from the terminal accommodating portion toward an outer peripheral direction, and the rear portion And an outer cylinder portion that is connected to the wall portion and surrounds the periphery of the terminal accommodating portion, and a space surrounded by the terminal accommodating portion, the back wall portion, and the outer cylinder portion is provided in the counterpart housing. A housing that is an assembly space capable of accommodating a hood portion, and a seal member that is mounted in the assembly space and is sandwiched between the housing and the counterpart housing so as to seal between the two housings. The seal member is provided with a retaining portion that is formed to project toward the outer peripheral side, while the outer cylinder portion is formed to project to the insertion path of the seal member to the assembly space. Engage with the retaining part A waterproof connector provided with a locking projection piece, wherein a surface of the locking projection piece that faces the seal member when the seal member enters the assembly space is forward in the insertion direction of the seal member. It is characterized in that a guide surface inclined toward the surface is provided.

  According to a second aspect of the present invention, in the first aspect of the present invention, the locking projection piece and the retaining portion are provided with a restriction portion that fits in a concavo-convex shape, and the locking projection piece side Of the retaining portion by contacting a regulating surface facing the inner wall surface of the outer tube portion in the regulating portion and a regulating receiving surface facing the regulating surface in the regulating portion on the retaining portion side. It is characterized in that the deflection to the circumferential side is restricted.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the seal member is provided with a pressing surface capable of pressing an assembly jig for pushing the seal member into the assembly space. It is characterized in that the pressing portion is provided adjacent to the retaining portion.

  According to a fourth aspect of the present invention, in the housing according to any one of the first to third aspects, the retaining portion and the locking protruding piece are located at a position from the back wall portion to the outer cylinder portion in the housing. It is characterized in that a monitoring window is provided which allows the fitting state to be viewed from the outside.

<Invention of Claim 1>
According to the first aspect of the present invention, when the seal member enters the assembly space, a guide surface that inclines toward the front in the insertion direction of the seal member is provided on the surface of the locking protrusion that faces the seal member. ing. According to such a configuration, when the seal member enters, the retaining portion bends to the inner peripheral side along the inclination of the guide surface, and can easily get over the locking protrusion and enter the rear side thereof. Therefore, the seal member can be inserted with a weaker pushing force than in the prior art. Therefore, even a seal member having a retaining structure can be easily assembled.

<Invention of Claim 2>
According to the second aspect of the present invention, the locking protrusion and the retaining portion are provided with the restricting portion that fits in the form of irregularities. Then, the restriction surface facing the inner wall surface of the outer cylinder portion in the restriction portion on the locking projection piece side, and the restriction receiving surface facing the restriction surface in the restriction portion on the retaining portion side are provided so that the retaining portion Bending toward the inner periphery is restricted.

  By the way, in the conventional waterproof connector, when the other housing is removed, when the seal member is pulled strongly toward the front by the movement of the housing, the flange portion is bent toward the inner peripheral side and comes off from the locking projection. May end up. However, according to the configuration of the present invention, since the regulating surface on the locking projection piece side and the regulating receiving surface on the retaining portion side come into contact with each other, the retaining portion of the seal member is restricted from bending toward the inner peripheral side. This reliably prevents the seal member from being detached after assembly.

<Invention of Claim 3>
According to the invention of claim 3, the seal member is provided with a pressing portion provided with a pressing surface capable of pressing an assembly jig for pressing the seal member into the assembly space, adjacent to the retaining portion. It has been. According to such a structure, since the surface which can press an assembly jig | tool in a seal member is ensured, a seal member can be assembled | attached easily. Further, since the retaining portion is provided adjacent to the pressing portion, the rigidity is increased and the holding force is increased as compared with the case where the retaining portion is present alone. Therefore, since the retaining portion is strongly latched with the latching protrusion and is difficult to bend inwardly, the seal member can be prevented from being easily pulled out.

<Invention of Claim 4>
According to the fourth aspect of the present invention, the monitoring window is provided at the position from the back wall portion to the outer cylinder portion in the housing so that the fitting state between the retaining portion and the locking protrusion can be visually observed from the outside. By the way, in the conventional waterproof connector, only the fitting hole is provided in the wall after rising, so it can be confirmed that the fitting protrusion is fitted in the fitting hole, but the flange portion is locked. It is not possible to confirm the state of being securely locked in the rear of the protrusion. Therefore, there is a possibility that the seal member is retained in a state where it is not securely locked. However, according to the configuration of the present invention, since the monitoring window is provided at the position from the back wall portion to the outer cylinder portion, both the retaining portion and the locking protrusion can be visually observed from this monitoring window. . Accordingly, since the fitting state can be confirmed from the outside of the connector housing, the locking state between the retaining portion and the locking protrusion can be easily confirmed, and the sealing member can be more reliably prevented from coming out. be able to.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  The waterproof connector 1 of this embodiment is a female connector, and includes a female housing 10 (corresponding to the housing of the present invention) and a rubber ring 20 attached to the female housing 10 (corresponding to the sealing member of the present invention). And is matable with a mating male housing 30 (corresponding to the mating housing of the present invention). The rubber ring 20 is sandwiched between the female housing 10 and the male housing 30 to seal between the housings 10 and 30.

  Hereinafter, in each component, the fitting surface side in both housings 10 and 30 will be referred to as the front, and the upper side in FIG. 1 will be referred to as the upper side, the lower side as the lower side, the left side as the left side, and the right side as the right side.

  1 is a front view of the female housing 10 according to the present embodiment, FIG. 2 is a front view of the rubber ring 20, and FIG. 3 is a state before the rubber ring 20 is attached to the female housing 10. A side sectional view is shown.

  The female housing 10 is formed of synthetic resin, and is connected to the terminal wall 11 that can receive the terminal fitting 40, the back wall 12 raised from the terminal housing 11 toward the outer periphery, and the back wall 12. And an outer cylinder portion 13 surrounding the periphery of the terminal accommodating portion 11. As shown in FIG. 1, the terminal accommodating portion 11 has a prismatic shape with a substantially rectangular cross section that is long in the left-right direction. Further, the back wall portion 12 protrudes in the outer peripheral direction over the entire circumference from a slightly rearward direction from the center in the front-rear direction with respect to the terminal accommodating portion 11 (see FIG. 3). And the outer cylinder part 13 is formed in the substantially cylindrical shape which stood up from the outer peripheral edge part of the back wall part 12 to the position a little beyond the front-end surface of the terminal accommodating part 11. FIG. Thus, the space surrounded by the outer peripheral surface of the terminal accommodating portion 11 and the inner wall surfaces of the inner wall portion 12 and the outer cylinder portion 13 is an assembly space 14 in which the male housing 30 and the rubber ring 20 can be accommodated. .

  In the terminal accommodating portion 11, two cavities 15 into which a female terminal fitting 42 that is electrically connected to a male terminal fitting 41 (described later) can be inserted from the rear are disposed in the left-right direction at a predetermined interval. A lance 16 projects from the inner peripheral surface of each cavity 15 in a cantilever manner. By this lance 16, when the female terminal fitting 42 is inserted from the rear, the female terminal fitting 42 is elastically locked to prevent the rearward withdrawal. Further, a tab insertion port 17 for inserting the tab portion 41A of the male terminal fitting 41 is provided at a position corresponding to each cavity 15 on the front wall of the terminal accommodating portion 11. The front edge of the tab insertion opening 17 is formed with a substantially bowl-shaped guiding surface over the entire circumference so that the entry operation of the tab portion 41A of the male terminal fitting 41 is smoothly guided.

  The female terminal fitting 42 includes a substantially box-shaped connecting portion 43 formed in a prismatic shape and connectable to the tab portion 41A of the male terminal fitting 41 on the front side, and a barrel portion 44 on the rear side. (See also FIG. 7). A rubber plug 46 for electric wire is crimped to the barrel portion 44 together with the terminal 45 of the electric wire. The wire rubber plug 46 is brought into close contact with the inner peripheral surface of the cavity 15 so that the inside of the cavity 15 is waterproofed.

  The rubber ring 20 accommodated in the assembly space 14 is formed of an elastic member (for example, rubber). The rubber ring 20 includes a seal portion 21 that seals between the housings 10 and 30 by being sandwiched between the female housing 10 and the male housing 30 (see FIGS. 2 and 3). The seal portion 21 has a rectangular tube shape opened in the front-rear direction, and an inner peripheral surface thereof is formed in a size that can be fitted to the outer peripheral surface of the terminal accommodating portion 11. The seal portion 21 fitted to the outer peripheral surface of the terminal accommodating portion 11 is inserted from the front to the rear along the axis of the terminal accommodating portion 11 by an assembling jig (not shown), and is positioned immediately before the rear wall portion 12. (See also FIG. 6). The inner and outer peripheral surfaces of the seal portion 21 are provided with a plurality of lips 23 for improving the waterproof effect.

  On both the left and right short sides of the seal portion 21, a retaining portion 22 for retaining the rubber ring 20 is provided. As shown in FIG. 3, the retaining portion 22 includes a retaining projection 22 a projecting rearward from the rear end of the seal portion 21, and an outer peripheral surface of the retaining projection 22 a along the back wall portion 12. A retaining overhanging portion 22b projecting in the outer circumferential direction from the outer tube portion 13 to the inner wall surface of the outer cylinder portion 13, and a forward projection along the inner wall surface of the outer cylinder portion 13 from the tip end portion of the retaining overhang portion 22b. And a retaining side protrusion 22c provided. An inner portion of the retaining-side protrusion 22c is a groove-shaped locking recess 24 that opens forward (corresponding to the retaining-portion regulating portion in the present invention).

  Adjacent to each retaining portion 22 are two pressing portions 26 each having a pressing surface 25 capable of pressing an assembly jig for pushing the rubber ring 20 into the assembly space 14 (see FIG. 2). The two pressing portions 26 are provided integrally with the retaining portion 22 at both ends in the vertical direction (the circumferential direction of the rubber ring 20) in the retaining portion 22. Each pressing portion 26 has a prismatic shape, and when viewed from the front, is formed in a substantially square shape with the overhang length of the retaining overhang portion 22b as one side, and when viewed from the side, the front end of the retaining portion 22 is formed. It is provided from the substantially same position to the rear end position of the retaining portion 22. The vertical width of the pressing portion 26 and the retaining portion 22 is set to be within a straight portion excluding the arc portions at both corners in the short side portion of the seal portion 21. Further, the front surface of the pressing portion 26 is a pressing surface 25 against which the end portion of the assembly jig is pressed when the rubber ring 20 is fitted into the female housing 10.

  On the other hand, a monitoring window 50 is provided at a position corresponding to the retaining portion 22 of the rubber ring 20 in the female housing 10. The monitoring window 50 is opened from a region facing the retaining projection 22b of the rubber ring 20 in the back wall portion 12 to a region facing the retaining projection 22a of the rubber ring 20 in the outer cylinder portion 13, which will be described later. The locking protrusion 51 is formed to be slightly wider than the width in the vertical direction (the circumferential direction of the outer tube portion 13) (see FIGS. 1 and 3).

  Further, a locking protrusion 51 is provided at a position corresponding to the retaining portion 22 of the rubber ring 20 in the outer cylinder portion 13. This locking protrusion 51 is formed in a cantilever shape from the opening peripheral surface front side portion 52 of the front side portion of the opening peripheral surface forming the monitoring window 50 in the outer cylinder portion 13 with its radial inner position as a base portion. Yes. And the front-end | tip of the latching protrusion 51 is derived | led-out diagonally back so that it may protrude in the inner peripheral direction, ie, the insertion path | route to the assembly space 14 of the rubber ring 20. As shown in FIG.

  The surface of the locking protrusion 51 that faces the rubber ring 20 when the rubber ring 20 enters the assembly space 14 is a guide surface 54 whose tip is lowered rearward, that is, in the insertion direction of the rubber ring 20. Yes.

  Further, the protruding end of the locking protrusion 51 protrudes rearward and can be engaged with the locking recess 24 of the rubber ring 20 (in the restriction portion on the locking protrusion side in the present invention). Applicable) is formed. The locking protrusion 53 is formed in a plate shape, and a restriction surface 53 a that faces the inner wall surface of the outer cylinder portion 13 in the locking protrusion 53 and a restriction receiving surface 24 a that faces the restriction surface 53 a in the locking recess 24. (See also FIG. 6).

  A male housing 30 to be fitted into the female housing 10 is integrally formed of synthetic resin and includes a substantially cylindrical hood portion 31 that opens forward (see FIG. 7). The inner peripheral surface of the hood portion 31 has a diameter that can be fitted to the outer peripheral surface of the rubber ring 20. A tab 41 </ b> A of a male terminal fitting 41 that is electrically connected to the female terminal fitting 42 protrudes inside the hood portion 31.

  Next, the operation and effect of the present embodiment configured as described above will be described with reference to FIGS.

  4 is a side sectional view showing the rubber ring 20 being inserted, FIG. 5 is a front view showing the rubber ring 20 mounted on the female housing 10, and FIG. 6 is a rubber ring. A side sectional view showing a state where 20 is attached to the female housing 10 is shown.

  In order to assemble the rubber ring 20 with respect to the female housing 10, the rubber ring 20 is first positioned while aligning the position of the retaining portion 22 with the position of the locking protrusion 51 of the female housing 10. 11 is set in a state fitted to the outer peripheral surface of the front end portion. When the setting is completed, an assembly jig (not shown) is pressed against the pressing surfaces 25 of the pressing portions 26 provided at both ends of the retaining portion 22. Then, the assembly jig is pushed back along the axis of the female housing 10. Thus, since the rubber ring 20 has a surface on which the assembly jig can be pressed, the rubber ring 20 can be easily assembled.

  As shown in FIG. 4, when the rubber ring 20 is pushed rearward and the rear end of the retaining portion 22 reaches the locking protrusion 51, the retaining portion 22 bends to the inner peripheral side, Get on. Here, the surface of the locking protrusion 51 that faces the rubber ring 20 is a guide surface 54 whose tip is lowered rearward, that is, in the insertion direction of the rubber ring 20. As a result, the retaining portion 22 is guided along the inclination of the guide surface 54 and can easily get over the locking protrusion 51 and enter the rear side. For this reason, the rubber ring 20 can be inserted with a weaker pressing force than in the prior art.

  Then, after the retaining portion 22 gets over the locking protrusion 51, as shown in FIG. 6, the retaining portion 22 is restored and deformed and locked behind the locking protrusion 51. At this time, the locking projections 53 of the locking projections 51 are embedded in the locking recesses 24 of the locking portions 22 so that the locking portions 22 and the locking projections 51 are fitted to each other. It becomes a state. Then, the regulation surface 53a that faces the inner wall surface of the outer cylindrical portion 13 in the locking projection 53 and the regulation receiving surface 24a that faces the regulation surface 53a in the locking recess 24 come into contact with each other. The bending to the inner peripheral side is restricted. Thereby, the rubber ring 20 after assembling is prevented from coming off.

  Further, a monitoring window 50 extending from the rear wall portion 12 to the outer cylinder portion 13 is opened at a position corresponding to the retaining portion 22 in the female housing 10. Then, both the retaining portion 22 and the locking projection 51 can be visually observed from the monitoring window 50, and their fitting state can be confirmed from the outside of the female housing 10. Therefore, since the locking state of the retaining portion 22 and the locking protrusion 51 can be easily confirmed, the rubber ring 20 can be more reliably prevented from coming off.

  FIG. 7 shows a side sectional view showing a state before the male housing 30 is mounted on the female housing 10, and FIG. 8 shows a side sectional view showing a state in which both the housings 10, 30 are properly fitted.

  When the male housing 30 is fitted into the female housing 10, the hood portion 31 of the male housing 30 is inserted into the assembly space 14 of the female housing 10. At this time, the hood portion 31 of the male housing 30 enters between the outer peripheral surface of the rubber ring 20 and the inner wall surface of the outer cylindrical portion 13 in the assembly space 14 of the female housing 10. When both housings 10 and 30 are properly fitted, as shown in FIG. 8, the front end portion of the hood portion 31 reaches a position in front of the locking protrusion 51, and the rubber ring 20 is connected to the inner periphery of the hood portion 31. It will be in the state narrowed between the surface and the outer peripheral surface of the terminal accommodating part 11. FIG. Thus, the rubber ring 20 that is in close contact with both the housings 10 and 30 seals between the housings 10 and 30. As a result, the internal spaces of the housings 10 and 30 are sealed by the rubber ring 20 and the wire rubber plug 46. In addition, the male and female terminal fittings 41 and 42 are normally conductively connected, and the lock arm 18 of the female housing 10 is locked to a lock projection (not shown) provided on the male housing 30.

  After both the housings 10 and 30 have been properly fitted, the male housing 30 may be removed due to circumstances such as maintenance. At this time, the rubber ring 20 is strongly pulled forward by the movement of the male housing 30.

  However, the retaining portion 22 of the rubber ring 20 is provided with a pressing portion 26 adjacent to the retaining portion 22. For this reason, compared with the case where the retaining part 22 exists independently, rigidity increases and holding force becomes large. Therefore, since the retaining portion 22 is strongly locked with the locking protrusion 51 of the female housing 10 and is difficult to be bent inward, the rubber ring 20 is prevented from being easily pulled out.

  Further, the regulation surface 53 a of the locking projection 53 provided on the locking projection 51 and the regulation receiving surface 24 a of the locking recess 24 provided on the retaining portion 22 come into contact with each other. Bending toward the inner periphery is restricted. Thereby, even if the rubber ring 20 is pulled strongly toward the front, the rubber ring 20 is reliably prevented from coming out.

  As described above, according to the present embodiment, when the rubber ring 20 enters the assembly space 14, the surface of the locking protrusion 51 that faces the rubber ring 20 is positioned forward of the rubber ring 20 in the insertion direction. A guide surface 54 that is inclined toward the surface is provided. Then, when the rubber ring 20 enters, the retaining portion 22 bends to the inner peripheral side along the inclination of the guide surface 54, and can easily get over the locking protrusion 51 and enter the rear side. The rubber ring 20 can be inserted with a weaker pressing force than in the past. Therefore, even the rubber ring 20 having a retaining structure can be easily assembled.

  Further, the locking projection 53 provided on the locking projection 51 and the locking recess 24 provided on the retaining portion 22 are fitted and locked to each other. Then, the regulation surface 53a that faces the inner wall surface of the outer cylindrical portion 13 in the locking projection 53 and the regulation receiving surface 24a that faces the regulation surface 53a in the locking recess 24 come into contact with each other. Bending toward the inner periphery is restricted. As a result, even if the rubber ring 20 is pulled strongly toward the front, the retaining portion 22 of the rubber ring 20 is restricted from bending toward the inner peripheral side, so that the rubber ring 20 can be reliably prevented from coming out after assembly. .

  Further, the rubber ring 20 is provided with a pressing portion 26 having a pressing surface 25 capable of pressing an assembly jig for pushing the rubber ring 20 into the assembly space 14, adjacent to the retaining portion 22. ing. Thereby, since the surface which can press an assembly jig | tool in the rubber ring 20 is ensured, the rubber ring 20 can be assembled | attached easily. Further, since the retaining portion 22 is provided adjacent to the pressing portion 26, the rigidity is increased and the holding force is increased as compared with the case where the retaining portion 22 exists alone. Therefore, since the retaining portion 22 is strongly locked with the locking protrusion 51 and is difficult to bend inward, the rubber ring 20 is prevented from being easily pulled out.

  A monitoring window 50 is provided in the female housing 10 at a position from the back wall portion 12 to the outer cylinder portion 13 so that the fitting state between the retaining portion 22 and the locking protrusion 51 can be visually observed from the outside. As a result, both the retaining portion 22 and the locking projection 51 can be viewed from the monitoring window 50. Therefore, since the fitting state thereof can be confirmed from the outside of the female housing 10, the locking state of the retaining portion 22 and the locking protrusion 51 can be easily confirmed, and the rubber ring 20 can be prevented from coming out more reliably. Can be.

<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) In the present embodiment, the locking projection 53 that can be fitted into the locking recess 24 of the retaining portion 22 is formed at only one point of the tip of the locking projection 51, but this is not limitative. It is sufficient that the locking projection piece and the retaining portion are formed into a shape that can be fitted to each other, and that the regulation surface and the regulation receiving surface that contact each other are secured in the locking projection piece and the retaining portion. For example, the locking protrusion may be formed in the central portion in the extending direction of the locking protrusion. Moreover, the latching protrusion part may be formed in two places, a front-end | tip part and a root part.

  (2) In the present embodiment, the retaining portion 22, the locking protrusion 51, and the monitoring window 50 are provided at two locations on the left and right sides, but the present invention is not limited to this. good. Moreover, you may provide in four places up and down, right and left.

Front view of female housing according to this embodiment Front view of rubber ring Side sectional view showing the state before the rubber ring is attached to the female housing Side sectional view showing the rubber ring in the middle of insertion Front view showing a state in which the rubber ring is mounted on the female housing Side sectional view showing a state in which the rubber ring is mounted on the female housing Side sectional view showing a state before the male housing is mounted on the female housing Side sectional view showing a state where both housings are properly fitted

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Waterproof connector 10 ... Female housing (housing)
DESCRIPTION OF SYMBOLS 11 ... Terminal accommodating part 12 ... Back wall part 13 ... Outer cylinder part 14 ... Assembly space 20 ... Rubber ring (seal member)
22 .. retaining portion 24 .. locking recess (regulating portion on the retaining portion side)
24a ... Restriction receiving surface 25 ... Pressing surface 26 ... Pressing portion 30 ... Male housing (mating housing)
DESCRIPTION OF SYMBOLS 31 ... Hood part 40 ... Terminal metal fitting 50 ... Monitoring window 51 ... Locking protrusion 53 ... Locking protrusion (Regulation part by the side of a locking protrusion)
53a ... restriction surface 54 ... guide surface

Claims (4)

A terminal accommodating portion capable of accommodating a terminal fitting, a rear wall portion raised from the terminal accommodating portion toward an outer peripheral direction, and an outer cylinder portion that is connected to the inner wall portion and surrounds the periphery of the terminal accommodating portion. A housing surrounded by the terminal accommodating portion, the back wall portion, and the outer cylinder portion, and an assembly space capable of accommodating a hood portion provided in the counterpart housing; and the assembly A seal member that is mounted in a space and is sandwiched between the housing and the counterpart housing to seal between the two housings;
The seal member is provided with a retaining portion that is formed to project toward the outer peripheral side, while the outer cylinder portion is formed so as to project into the insertion path of the seal member into the assembly space, and the removal is performed. A waterproof connector provided with a locking protrusion that engages with a stopper,
A guide surface that is inclined toward the front in the insertion direction of the seal member is provided on a surface of the locking protrusion that faces the seal member when the seal member enters the assembly space. And waterproof connector. The locking protrusion and the retaining portion are provided with a restricting portion that fits in a concavo-convex shape, and the restriction that faces the inner wall surface of the outer cylinder portion in the restricting portion on the locking protrusion side. The bend to the inner peripheral side of the retaining portion is regulated by abutment of a surface and a regulation receiving surface facing the regulating surface at the regulating portion on the retaining portion side. Item 10. The waterproof connector according to item 1. The seal member is provided with a pressing portion having a pressing surface capable of pressing an assembly jig for pressing the seal member into the assembly space, adjacent to the retaining portion. The waterproof connector according to claim 1 or 2. In the housing, a monitoring window is provided at a position from the back wall portion to the outer cylinder portion so that a fitting state between the retaining portion and the locking protrusion can be visually observed from the outside. The waterproof connector in any one of Claims 1-3.

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