JP5012342B2 - Waterproof connector - Google Patents

Description

  The present invention relates to a waterproof connector including a hood portion having a cylindrical shape with a substantially circular cross section or a substantially elliptical cross section.

As this type of waterproof connector, for example, a waterproof connector described in Patent Document 1 below is known. This waterproof connector includes both male and female connectors that can be fitted to each other. As shown in FIG. 1 of Patent Document 1, the male connector is provided with a hood having a substantially elliptical cross section. A female connector housing provided on the female connector can be fitted to the hood portion, and a waterproof rubber ring is sandwiched between the hood portion and the female connector housing in the fitted state. . Also, a rib is provided on the peripheral surface of the female connector housing, and the rib is brought into contact with the peripheral surface of the hood portion to regulate rattling between the male and female connectors that are in a fitted state. Generally known.
Japanese Patent Laid-Open No. 2003-151682 (FIG. 1)

  For example, in the above-described waterproof connector, there is a gap for sandwiching the rubber ring between the female connector housing and the hood portion, so that the female connector housing and the hood portion are fitted in a tilted state with respect to the normal fitting direction. There may be a case where a so-called twist fitting is performed. If the rib is displaced with respect to the hood portion due to such a tight fitting or vibration from the vehicle body, the rib is separated from the peripheral surface of the hood portion, and rattling cannot be regulated. In short, when the hood part is formed in a cylindrical shape with a substantially circular cross section or a substantially elliptical cross section, there is only one point that can contact the rib on the peripheral surface of the hood part. If the rib is displaced, the rib can no longer be brought into contact with the peripheral surface of the hood portion.

  The present invention has been completed based on the above circumstances, and it is an object of the present invention to make it possible to regulate rattling between both male and female connectors even if the ribs of the waterproof connector are displaced from the hood portion. And

The present invention provides a male connector, a hood portion that protrudes from the male connector and has a substantially circular or substantially elliptical cross section, a female connector that can be fitted to the male connector, and the female connector. A female connector housing that is fitted to the hood as the male and female connectors are in a fitted state, and rubber that is sandwiched between the hood and the female connector housing in the fitted state A waterproof connector including a ring, provided on a peripheral surface of the female connector housing, and protruding in a first direction; provided on the peripheral surface of the female connector housing; and the first direction. A second rib projecting in a second direction opposite to the first direction, a flat surface receiving the projecting end of the first rib, and a second rib provided on the peripheral surface of the hood portion. Receiving the protruding end of Plane and is provided with a receiving portion for regulating the backlash between the male and female connectors became fitted state by being arranged parallel to, the female connector housing, fitted to the inside of the hood portion A main body portion, and the first and second ribs are respectively disposed on an outer peripheral surface of the main body portion, and the receiving portion is disposed on an inner peripheral surface of the hood portion, and the female connector housing Is provided with a fitting tube portion that can be fitted and received inside the hood portion, and the hood portion is provided with a guide piece provided on an outer peripheral surface thereof and extending in a fitting direction of the male and female connectors. The tube section includes a guide recess provided on an inner peripheral surface thereof for receiving the guide piece and guiding the fitting of the male and female connectors, and the first and second ribs are respectively disposed on the inner walls of the guide recess. The receiving part , Characterized in was a configuration that is disposed on the outer surface of the guide piece.

  According to such a configuration, the hood portion and the female connector housing are fitted together with the fitting of the male and female connectors. When both the male and female connectors are in the fitted state, the protruding end of the first rib protruding in the first direction contacts the plane of the receiving portion and protrudes in the second direction opposite to the first direction. The protruding end of the second rib that comes into contact with the plane of the receiving portion restricts the male and female connectors from rattling in the first direction and the second direction. Furthermore, since the plane that receives the protruding end of the first rib and the plane that receives the protruding end of the second rib are arranged in parallel, for example, the first and second ribs are moved by twisting both male and female connectors. The first and second ribs are kept in contact with the flat surface even if they are displaced in the plane direction of the receiving plane, and rattling between the male and female connectors is restricted.

The female connector housing includes a body portion that can be fitted inside the hood portion, the first and second ribs are disposed on the outer peripheral surface of the main body portion, and the receiving portion is disposed on the inner peripheral surface of the hood portion. Since it is the structure currently performed, the rattling between a food | hood part and a main-body part can be controlled.
Furthermore, the female connector housing includes a fitting tube portion that can be received and fitted into the hood portion, and the hood portion includes a guide piece that is provided on the outer peripheral surface thereof and extends in the fitting direction of the male and female connectors. The cylindrical portion includes a guide recess provided on the inner peripheral surface thereof for receiving the guide piece and guiding the fitting of the male and female connectors. The first and second ribs are respectively disposed on the inner walls of the guide recess, and the receiving portion is The structure is arranged on the outer surface of the guide piece. Therefore, the fitting of the male and female connectors can be guided by the guide recess receiving the guide piece. In particular, since the ribs and the receiving portions are provided using the guide pieces and the guide concave portions, the guide function portions (the guide concave portions and the guide pieces) and the rattling regulating portions (the ribs and the receiving portions) are separately provided. In addition, the overall configuration can be simplified.

The following configuration is preferable as an embodiment of the present invention.
The main body portion is provided with a bottomed cylindrical cap that is crowned on the fitting surface side with the hood portion and can be fitted into the hood portion in the crowned state, and the first and second ribs are the outer periphery of the cap. It is good also as a structure provided in the surface. According to such a configuration, even when the main body portion is fitted inside the hood portion with the cap attached to the fitting surface side with the hood portion, rattling between the hood portion and the main body portion is achieved. You can regulate the date.

  The receiving portion may be disposed in the back of the hood portion, and may be configured to restrict rattling between the male and female connectors by receiving the protruding ends of the first and second ribs when the male and female connectors are completely fitted. . When rattling between the male and female connectors is restricted, the first and second ribs come into contact with the receiving portions and the frictional resistance increases, so that the fitting operation force of the male and female connectors increases. In that respect, according to the above configuration, rattling is restricted when the male and female connectors are completely fitted. That is, since the rattling is not regulated during the mating of the male and female connectors, the fitting operation force can be small.

  A receiving part is good also as a structure provided only in the position corresponding to a 1st and 2nd rib in a fitting state among the surrounding surfaces of a food | hood part. According to such a configuration, since the receiving portion is provided only at a position corresponding to the first and second ribs, the entire hood portion does not become thick.

  According to the present invention, rattling between the male and female connectors can be restricted even if the rib is displaced from the hood portion in the waterproof connector.

<Embodiment>
An embodiment of the present invention will be described with reference to the drawings of FIGS.
The waterproof connector of the present embodiment includes a male connector 10 and a female connector 30 that can be fitted to each other, and the male and female connectors 10 and 30 are fitted by rotating an operation lever 50 attached to the female connector 30. Is possible. In the following description, the front-rear direction refers to the front of the mating surface with reference to the mating direction of the male and female connectors 10, 30.

  As shown in FIG. 1, the male connector 10 includes a male connector housing 11 made of synthetic resin, and the male connector housing 11 is provided with a hood portion 12 that opens forward. The hood portion 12 is formed in a cylindrical shape having a substantially elliptical cross section. In the present invention, the term “ellipse” refers to a closed shape in which the inner peripheral surface and the outer peripheral surface of the hood portion 12 are both curved. Therefore, even if it is a horizontally long substantially square shape as in the present embodiment, it is included in the “ellipse” when the inner peripheral surface and the outer peripheral surface of the hood portion 12 are formed of curved surfaces. The detailed configuration of the hood unit 12 will be described later.

  A tab-shaped male terminal fitting 20 is formed in the hood portion 12 so as to protrude forward. The male terminal fittings 20 are divided into upper and lower two stages and are arranged at equal intervals in the width direction. In addition, the male terminal fittings 20 corresponding to the upper and lower sides are arranged so as to be shifted from each other in the width direction, and have a zigzag shape as a whole. The male terminal fitting 20 is fixed to the back wall of the hood portion 12 by press-fitting or insert molding. A pair of cam pins 13 projecting in the width direction are formed on both sides of the hood portion 12 in the width direction. The cam pin 13 has a cylindrical shape and engages with a side wall of a cam groove 53 described later to exhibit a cam action.

  In the male connector housing 11, three guide pieces 14, 15, 16 that are received in three guide recesses 37, 42, 43 to be described later and guide the fitting operation with the female connector 30 respectively extend in the front-rear direction. Is provided. A pair of first guide pieces 14 are arranged at both ends of the lower portion of the hood portion 12. Both the first guide pieces 14 have a substantially square cross section and are formed to project outward in the width direction. A pair of second guide pieces 15 are arranged at a predetermined interval in the width direction in the upper part of the hood part 12. Both the second guide pieces 15 have a substantially square cross section and are formed to protrude upward. The third guide piece 16 has a substantially horizontally long cross section and is arranged between the upper male terminal fitting group 20 and the lower male terminal fitting group 20 so as to project forward from the rear wall of the hood portion 12. .

  As shown in FIG. 2, the female connector 30 has a female connector housing 31 made of synthetic resin. The female connector housing 31 is provided with a main body part 32 having a horizontally long and substantially rectangular block shape, and a fitting cylinder part 33 arranged so as to cover the outer periphery of the main body part 32. As shown in FIG. 5, the fitting cylinder portion 33 has a form that rises radially outward from the rear end portion of the main body portion 32 and extends forward therefrom. The hood portion 12 can be fitted between the inner peripheral surface of the fitting cylinder portion 33 and the outer peripheral surface of the main body portion 32. Further, as shown in FIG. 2, a first guide recess 42 that can receive the first guide piece 14 and a second guide recess that can receive the second guide piece 15 are formed on the inner peripheral surface of the fitting cylinder portion 33. 43 are recessed along the front-rear direction.

  A range from the front surface to the outer peripheral surface of the main body portion 32 is configured by a cap 34 that can be attached and detached from the front. That is, the cap 34 has a bottomed cylindrical shape, and includes a front wall 34A constituting the front surface of the main body portion 32 and a peripheral wall 34B extending rearward from the periphery of the front wall 34A, and is attached to the main body portion 32. It can be fitted inside the hood portion 12 in a state. A waterproof rubber ring 80 is fitted to the rear end of the outer peripheral surface of the main body 32. The rubber ring 80 is sandwiched between the outer peripheral surface of the main body portion 32 and the inner peripheral surface of the hood portion 12, and is prevented from being pulled out by the rear end of the peripheral wall 34 </ b> B of the cap 34.

  A cavity 35 penetrating in the front-rear direction is formed inside the main body 32. A female terminal fitting 40 inserted from the rear can be accommodated in the cavity 35. The cavity 35 is formed in two upper and lower tiers corresponding to the arrangement of the male terminal fitting 20, and a third guide recess 37 that can accommodate the third guide piece 16 opens forward between the upper and lower cavities 35. Is formed.

  The front stop wall that performs the front stop of the female terminal fitting 40 inserted into the cavity 35 is constituted by a front wall 34 </ b> A of the cap 34. A terminal insertion hole 36 for allowing the male terminal fitting 20 to enter the cavity 35 is formed in the front stop wall in two upper and lower stages. A guide insertion hole 38 for allowing the third guide piece 16 to enter the inside of the third guide recess 37 is formed between the upper and lower terminal insertion holes 36 in the front wall 34 </ b> A of the cap 34.

  On the inner wall of the cavity 35, a lance 39 that holds the female terminal fitting 40 inside the cavity 35 in a non-removable state is formed to be able to bend. A retainer accommodating portion 41 that communicates with the inside of the cavity 35 is formed in the main body portion 32 so as to open downward. The retainer accommodating portion 41 can accommodate the retainer 60, and can be held in a double-locked state together with the lance 39 by being engaged with the female terminal fitting 40 accommodated inside the cavity 35.

  The female terminal fitting 40 includes a terminal connecting portion connected to the male terminal fitting 20 and a wire connecting portion extending backward from the terminal connecting portion and connected to the electric wire W. The terminal connecting portion has a rectangular tube shape penetrating in the front-rear direction, and includes an elastic contact piece that elastically contacts the male terminal fitting 20 inserted therein. The retainer 60 is locked to the rear end of the terminal connection portion.

  On the other hand, the electric wire connecting portion is constituted by a wire barrel portion for caulking the electric wire W and an insulation barrel portion for caulking the rubber plug 70 together with the electric wire W. The rubber plug 70 is housed in a rubber plug housing portion that constitutes the latter half of the cavity 35. The rubber plug 70 is provided with two illustrated lip portions. The lip portion is in close contact with the inner peripheral surface of the rubber plug housing portion and the outer peripheral surface of the electric wire W, and restricts water from entering the cavity 35.

  The female connector housing 11 is provided with an operation lever 50 that can be rotated between a standby position and a fitting position. As shown in FIG. 2, the operation lever 50 has a substantially gate shape, and includes an operation unit 51 and a pair of arm units 52 arranged on both sides of the operation unit 51 in an opposed state. The arm portion 52 is provided with a rotation hole 57, and when the rotation shaft 49 protruding from both side surfaces of the female connector housing 11 is fitted into the rotation hole 57, the operation lever 50 is rotated. It is supported movably.

  A cam groove 53 is recessed in the inner surface of the arm portion 52. Further, on both sides in the width direction of the fitting tube portion 33, notches 44 that communicate the inside and the outside of the fitting tube portion 33 are provided. The notch 44 is arranged at a position aligned with the entrance of the cam groove 53 of the operating lever 50 in the standby position. The notch 44 is notched rearward from the front edge of the fitting cylinder portion 33, and the cam pin 13 is moved as the hood portion 12 enters between the main body portion 32 and the fitting cylinder portion 33. Can be moved backward. Further, an anti-rotation projection 54 for holding the operation lever 50 at the standby position is provided near the entrance of the cam groove 53 on the inner surface of the arm portion 52. The anti-rotation protrusion 54 enters the notch 44 when the operation lever 50 is in the standby position, and is locked to the upper surface of the inner wall of the notch 44.

  On the other hand, a release protrusion 17 is provided above the cam pin 13 on the outer peripheral surface of the hood portion 12. The release protrusion 17 enters the inside of the notch 44 together with the cam pin 13 by fitting the hood part 12 between the main body part 32 and the fitting cylinder part 33, and enters the inside of the rotation prevention protrusion 54. The rotation preventing projection 54 is configured to be pushed out of the notch 44. When the rotation preventing projection 54 is pushed out of the notch 44, the arm portion 52 opens and deforms on both sides in the width direction, and the locking state between the rotation preventing projection 54 and the inner wall upper surface of the notch 44 is released. Thus, the turning operation of the operation lever 50 is allowed.

  The cam pin 13 is restricted from coming off from the inlet of the cam groove 53 by a retaining protrusion 58 provided on the lower surface of the inner wall at the inlet of the cam groove 53. After the cam pin 13 has entered the entrance of the cam groove 53, when the operation lever 50 in the standby position is rotated toward the fitting position, the cam pin 13 and the side wall of the cam groove 53 are locked, and the cam action causes The cam pin 13 moves to the back along the cam groove 53. Thereby, both the male and female connectors 10 and 30 are fitted, and when the normal fitting is reached, the hood portion 12 is fitted between the main body portion 32 and the fitting cylinder portion 33. In parallel with this, the male terminal fitting 20 enters the inside of the cavity 35 and the inside of the terminal connection portion of the female terminal fitting 40 through the terminal insertion hole 36 of the cap 34 and elastically contacts the elastic contact piece.

  At the upper rear end of the female connector housing 31, a holding portion 45 for holding the operation lever 50 in the fitting position is formed to project rearward. At the rear end of the holding portion 45, a holding projection 46 is provided that engages with a bending locking piece 55 that is provided on the operation portion 51 so as to be bent. In a state where the bending locking piece 55 is locked to the holding projection 46, the operation lever 50 in the fitting position is restricted from rotating to the standby position. A release operation portion 56 is provided at the protruding end of the bending locking piece 55. By holding the release operation portion 56 with a finger and releasing the locking state between the bending locking piece 55 and the holding projection 46, the operation lever 50 in the fitting position is allowed to rotate to the standby position. The

  Now, as described above, the detailed structure of the hood portion 12 will be described. The outer peripheral surface of the hood part 12 is formed in the front-rear direction as shown in FIG. On the other hand, the inner peripheral surface of the hood portion 12 has a shape opened from the back wall side toward the opening edge side. That is, the hood portion 12 is located between the small diameter portion 12A having a small inner diameter located on the back wall side, the large diameter portion 12C having a large inner diameter located on the opening edge side, and the small diameter portion 12A and the large diameter portion 12C. And 12A, 12B, and 12C are coaxially and integrally configured.

  As shown in FIG. 6, the inner peripheral surface of the large-diameter portion 12C of the hood portion 12 is in close contact with the outer peripheral surface of the rubber ring 80 when the male and female connectors 10 and 30 are fitted together. The inner peripheral surface is in close contact with the outer peripheral surface of the main body portion 32. On the other hand, the inner peripheral surface of the small-diameter portion 12A of the hood portion 12 is formed so as to substantially match the outer peripheral surface of the cap 34, as shown in FIG. As shown in FIG. 2, eight inner ribs 47 shown in the figure extend in the front-rear direction on the peripheral wall 34 </ b> B of the cap 34, and these inner ribs 47 are the inner peripheral surface of the small-diameter portion 12 </ b> A of the hood portion 12. When the fitting of the male and female connectors 10 and 30 is completed, rattling between the hood portion 12 and the main body portion 32 is regulated.

  The peripheral wall 34B of the cap 34 has a substantially square cross section, and the eight inner ribs 47 are arranged on each of the four sides on the top, bottom, left, and right of the peripheral wall 34B, and a pair of upper ribs (the “first rib” of the present invention). An example) 47A, a pair of lower ribs (an example of the “second rib” of the present invention) 47B, a pair of left ribs (an example of the “first rib” of the present invention) 47C, and a pair of right ribs (the “ An example of “second rib” 47D. Both upper ribs 47A are provided so as to protrude upward at both end sides on the upper side of the peripheral wall 34B. Both lower ribs 47B are provided so as to protrude downward on both end sides of the lower side of the peripheral wall 34B. The upper ribs 47A and the lower ribs 47B are provided at positions corresponding to the upper and lower sides, respectively. The upper part is an example of the “first direction” in the present invention, and the lower part is an example of the “second direction” in the present invention.

  Both left ribs 47C are arranged at predetermined intervals in the vertical direction on the left side of the peripheral wall 34B, and are provided to protrude to the left. Both right ribs 47D are arranged at predetermined intervals in the vertical direction on the right side of the peripheral wall 34B, and are provided so as to protrude rightward. Both left ribs 47C and right ribs 47D are provided at positions corresponding to the left and right.

  On the other hand, a receiving portion 18 that receives the protruding end of the rib 47 is provided on the inner peripheral surface of the small diameter portion 12 </ b> A of the hood portion 12. The receiving portions 18 are arranged on four sides of the small-diameter portion 12A on the top, bottom, left, and right sides, and are straight surfaces (“first and second ribs” of the present invention) formed in a flat shape by building up the inner peripheral surface of the small-diameter portion 12A. An example) 18A. The six receiving portions 18 shown in the figure are formed on the inner peripheral surface of the small diameter portion 12A. The straight surface 18A that contacts the protruding end of the upper rib 47A is set in parallel to the straight surface 18A that contacts the protruding end of the lower rib 47B. The straight surface 18A that contacts the protruding end of the left rib 47C is set in parallel to the straight surface 18A that contacts the protruding end of the right rib 47D.

  The receiving portions 18 are individually provided for the upper ribs 47A and the lower ribs 47B, respectively, but the common receiving portions 18 are provided for the left ribs 47C and the right ribs 47D. ing. This is because both the left ribs 47C and the right ribs 47D are provided at relatively close positions on the short side of the peripheral wall 34B, and the hood portion 12 does not become so thick even if the common receiving portion 18 is provided. Because. However, the upper ribs 47A and the lower ribs 47B are provided near both ends on the long side of the peripheral wall 34B, the common receiving portion 18 is provided on the long side of the peripheral wall 34B, and the long straight surfaces 18A are formed on the left and right. This is because, if formed, the hood portion 12 becomes thicker by that amount. In addition, in order to clarify the position where the receiving part 18 is provided, in FIG. 1, it displays as an area | region pinched | interposed by two broken lines.

  Outer ribs 48 are provided to extend in the front-rear direction on the inner wall lower surface of both first guide recesses 42 and the inner wall upper surface of both second guide recesses 43, respectively. By contacting the outer peripheral surface of the diameter portion 12C, rattling between the hood portion 12 and the fitting cylinder portion 33 in the fitted state is restricted. As shown in FIG. 2, the outer rib 48 is disposed in the two upper ribs 48 </ b> A (an example of the “first rib” in the present invention) 48 </ b> A disposed in the second guide recess 43 and the first guide recess 42. 2B (an example of the “second rib” in the present invention) 48B shown in the drawing. Further, as shown in FIG. 5, the outer rib 48 is provided behind the retainer accommodating portion 41, so that rattling can be restricted when the male and female connectors 10 and 30 are completely fitted.

  For the upper rib 48A of the outer rib 48, the upper surface of the second guide piece 15 functions as the straight surface 18A of the receiving portion 18. For the lower rib 48B of the outer rib 48, the lower surface of the first guide piece 14 functions as the straight surface 18A of the receiving portion 18. The upper surface of the second guide piece 15 has a planar shape, and is set to be parallel to the lower surface of the first guide piece 14 that is also formed in a planar shape. As described above, since the upper and lower ribs 48A and 48B and the receiving portion 18 are provided by using the guide pieces 14 and 15 and the guide recesses 42 and 43, which are existing structures, they are in a fitted state without any major design change. The rattling between the hood part 12 and the fitting cylinder part 33 can be regulated.

The present embodiment has the above configuration, and the operation thereof will be described subsequently.
First, the operating lever 50 is set at the standby position shown in FIG. 3, and the male and female connectors 10 and 30 are fitted. Then, the hood part 12 enters between the main body part 32 and the fitting cylinder part 33, and the cam pin 13 enters the inlet of the cam groove 53 through the notch 44. At this time, the release protrusion 17 enters the inside of the anti-rotation protrusion 54 and pushes the anti-rotation protrusion 54 to the outside of the notch 44, thereby locking the anti-rotation protrusion 54 and the upper surface of the inner wall of the notch 44. The state is released.

  Next, the operation lever 50 is rotated from the standby position to the fitting position. The cam pin 13 moves to the back of the cam groove 53 by the cam action, and when the cam pin 13 relatively moves to the rear of the notch 44, the male and female connectors 10 and 30 are engaged. At this time, the guide pieces 14, 15, 16 are received in the respective guide recesses 37, 42, 43, whereby the fitting operation of the male and female connectors 10, 30 is guided. At the same time, the hood portion 12 enters between the main body portion 32 and the fitting cylinder portion 33, and the rubber ring 80 is sandwiched between the inner peripheral surface of the hood portion 12 and the outer peripheral surface of the main body portion 32 in a compressed state. .

  Thus, when the operating lever 50 is rotated to the mating position shown in FIG. 4, the male and female connectors 10 and 30 are brought into the mating state, and the inner rib 47 and the outer rib 48 are respectively received as shown in FIG. The portion 18 is held in contact with the straight surface 18A. In this state, rattling up and down and right and left between the hood portion 12 and the cap 34 (main body portion 32) is restricted, and rattling up and down between the hood portion 12 and the fitting cylinder portion 33 is restricted. The rattling between the male and female connectors 10, 30 is restricted. When the operating lever 50 reaches the fitting position, the bending locking piece 55 of the operating portion 51 is locked to the holding projection 46 of the holding portion 45, whereby the operating lever 50 is held at the fitting position. Further, the male terminal fitting 20 is elastically contacted with the elastic contact piece of the female terminal fitting 40, and the electric wires W connected to the male and female terminal fittings 20 and 40 are connected so as to be conductive.

  Thereafter, the ribs 47 and 48 are positioned in the vertical and horizontal directions along the surface direction of the straight surface 18A due to vibrations transmitted from the vehicle body when the male and female connectors 10 and 30 are twisted or mounted on the vehicle. It may be displaced. However, the straight surfaces 18A that contact the protruding ends of the upper and lower ribs 47A and 47B are parallel, and the straight surfaces 18A that contact the protruding ends of the left and right ribs 47C and 47D are also parallel, and the protruding ends of the upper and lower ribs 48A and 48B. Since the straight surfaces 18A that are in contact with each other are also parallel, the protruding ends of the ribs 47 and 48 and the straight surfaces 18A are held in contact with each other. Accordingly, rattling between the hood portion 12 and the cap 34 (main body portion 32) and between the hood portion 12 and the fitting tube portion 33 is restricted, and rattling between the male and female connectors 10, 30 is restricted. Is done.

  When the male and female connectors 10 and 30 are detached, the release operation portion 56 is grasped with a finger to release the engagement state between the bending engagement piece 55 and the holding projection 46, and the operation lever 50 is engaged. The cam pin 13 advances to the entrance of the cam groove 53 by the cam action of the cam pin 13 and the cam groove 53, and the male and female connectors 10, 30 are moved away from each other.

  As described above, in the present embodiment, since the straight surfaces 18A that contact the protruding ends of the ribs 47 and 48 are parallel to each other, the rattling between the male and female connectors 10 and 30 is restricted, The ribs 47 and 48 are allowed to be displaced along the surface direction of the straight surface 18A in contact therewith. In addition, since the receiving portion 18 is provided on the back wall side of the hood portion 12 so that the rattling is restricted when the male and female connectors 10 and 30 are completely fitted, the operation force during the fitting is small. . Further, since the receiving portions 18 are provided in the vicinity of both ends on the long side of the hood portion 12, it is possible to avoid the long side of the hood portion 12 from being formed thick. In addition to these, since the outer rib 48 and the receiving portion 18 are provided using the guide pieces 14, 15, 16 and the guide recesses 37, 42, 43, which are existing structures, without significant design changes, and The rattling between the male and female connectors 10 and 30 can be regulated without complicating the overall configuration.

<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.
(1) Although ribs 47 and 48 projecting in the vertical direction and the horizontal direction are provided in the present embodiment, ribs projecting in an oblique direction may be provided according to the present invention.
(2) Although the hood portion 12 having a substantially elliptical cross section is provided in the present embodiment, the hood portion having a substantially circular cross section may be provided according to the present invention.

(3) Although the inner rib 47 is provided on the peripheral wall 34B of the cap 34 in the present embodiment, the inner rib 47 is provided on the outer peripheral surface of the main body 32 in the case where the cap 34 is not provided. Also good.

(4) Although the receiving portion 18 is provided on the back wall side of the hood portion 12 in the present embodiment, the receiving portion 18 may be provided on the opening edge side of the hood portion 12 according to the present invention.

Front view of male connector Front view of female connector The figure which showed the state of a cam pin and a cam groove before fitting both male and female connectors The figure which showed the state of a cam pin and a cam groove after fitting both male and female connectors A cross-sectional view of the male and female connectors before they are mated A cross-sectional view of the male and female connectors after they are mated Front view of cross section of male and female connector housings after mating The figure which expanded the part of FIG. 7, and showed the state which each rib and the straight surface are contacting

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Male connector 12 ... Hood part 14 ... 1st guide piece 15 ... 2nd guide piece 16 ... 3rd guide piece 18 ... Receiving part 18A ... Straight surface (plane which receives the protrusion end of 1st and 2nd rib)
DESCRIPTION OF SYMBOLS 30 ... Male terminal metal fitting 31 ... Female connector housing 32 ... Main-body part 33 ... Fitting cylinder part 34 ... Cap 34B ... Inner wall (cap outer peripheral surface)
37 ... 3rd guide recessed part 42 ... 1st guide recessed part 43 ... 2nd guide recessed part 47 ... Inner rib (1st rib and 2nd rib)
48 ... Outer rib (first rib and second rib)
80 ... Rubber ring

Claims (4)

A male connector;
A hood part that protrudes from the male connector and has a cylindrical shape with a substantially circular or oval cross section,
A female connector matable with the male connector;
A female connector housing that is provided on the female connector and that fits with the hood as the male and female connectors are in a fitted state;
A waterproof connector comprising a rubber ring sandwiched between the hood portion and the female connector housing in the fitted state,
A first rib provided on a peripheral surface of the female connector housing and protruding in a first direction;
A second rib provided on the peripheral surface of the female connector housing and projecting in a second direction opposite to the first direction;
The peripheral surface of the hood portion is provided in a flat shape, and the flat surface that receives the protruding end of the first rib and the flat surface that receives the protruding end of the second rib are arranged in parallel with each other. And a receiving part that regulates rattling between the male and female connectors ,
The female connector housing includes a body portion that can be fitted inside the hood portion, the first and second ribs are respectively disposed on an outer peripheral surface of the body portion, and the receiving portion is formed of the hood portion. Is located on the inner surface,
The female connector housing includes a fitting tube portion that can be fitted with the hood portion received therein, and the hood portion includes a guide piece that is provided on an outer peripheral surface thereof and extends in a fitting direction of the male and female connectors. The fitting cylinder portion includes a guide recess provided on an inner peripheral surface thereof for receiving the guide piece and guiding the fitting of the male and female connectors, and the first and second ribs are provided on the guide recess. The waterproof connector which is arrange | positioned at the inner wall respectively and the said receiving part is arrange | positioned at the outer surface of the said guide piece . The main body portion is provided with a bottomed cylindrical cap that is crowned on a fitting surface side with the hood portion and can be fitted into the hood portion in the crowned state, and the first and second ribs are The waterproof connector according to claim 1 , wherein the waterproof connector is provided on an outer peripheral surface of the cap. The receiving portion is disposed in the interior of the hood portion and regulates rattling between the male and female connectors by receiving the protruding ends of the first and second ribs when the male and female connectors are completely fitted. The waterproof connector according to claim 1 or 2 . The receiving unit according to any one of the first and claims 1 provided only in the second rib and the corresponding position according to claim 3 in the fitting state of the peripheral surface of the hood portion Waterproof connector.

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