JP5104212B2 - connector - Google Patents

Description

  The present invention relates to a connector.

  In Patent Document 1, a male terminal fitting is inserted into the cavity in the housing from the rear, and the normally inserted male terminal fitting is retained by the latching action of the lance on the inner wall of the cavity. The male terminal fitting can be prevented from being removed by assembling the retainer at the rear position in a direction intersecting the insertion direction of the male terminal fitting and locking the retainer to the male terminal fitting.

The retainer has a retaining portion, allows temporary insertion of the male terminal fitting into the cavity, and advances the retaining portion into the insertion path of the male terminal fitting so as to be engaged with the inserted male terminal fitting. It is held at the final locking position.
Japanese Patent Laid-Open No. 2005-5121

In this type of connector, when the retainer is in the temporary locking position, the retaining portion is retracted out of the insertion path of the male terminal fitting, so that the outer surface of the male terminal fitting during insertion and the surface facing the cavity of the retainer Some have gaps between them. In such a connector, when the elastically deformed lance is pressed against the tab at the front end of the male terminal fitting from the side opposite to the side where the retaining portion is retracted, the insertion posture of the male terminal fitting is There is a concern that the tilting and tabs interfere with the front wall of the cavity and hinder the insertion operation.
This invention is completed based on the above situations, Comprising: It aims at preventing the inclination of the insertion attitude | position of a male terminal metal fitting.

As a means for achieving the above object, the invention of claim 1 includes a housing having a cavity therein and an elastically lance that is formed on the inner wall of the cavity, and a tab at the front end. A male terminal fitting inserted into the cavity from the rear, and a retainer having a retaining portion locked to the male terminal fitting, the retainer allowing the male terminal fitting to be inserted into the housing. The male terminal fitting that has been inserted can be mounted between the temporary locking position to be engaged and the main locking position for engaging the retaining portion with the inserted male terminal fitting. in the lance and thereby engaged with said retaining portion, said has become a male terminal fitting so that retaining fit, into the retainer, in a state where the retainer is at the partial locking position, the male terminal fitting Sandwiched therebetween and the lance is arranged to be positioned behind the lance a side opposite, in a connector guide portion for sliding contact with the male terminal fitting of the insertion process is provided, wherein the male terminal fitting And a rectangular tube portion connected to the rear end of the tab, and a wire connecting portion that is narrower than the rectangular tube portion and connected to the rear end of the rectangular tube portion, and a pair of left and right retaining portions are provided. The guide portion is arranged rearward of the retaining portion and is provided in a pair on the left and right sides. When the retainer is moved to the main locking position, the retaining portion and the guide portion are the male terminals in the cavity. In the metal fitting insertion region, the pair of retaining portions are locked from the rear with respect to the rear end of the rectangular tube portion, and the pair of guide portions are in a state of non-interference with the wire crimping portion, Corresponding to the edge in the width direction of the square tube Characterized in place positioned to.

  The invention of claim 2 is characterized in that, in the invention of claim 1, the guide portion is in a form continuous along the insertion direction of the male terminal fitting.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, in the insertion process of the male terminal fitting, the guide portion is arranged so that the male terminal fitting comes before the tab abuts on the lance. It is characterized in that it is placed at a position where it comes into contact.

According to a fourth aspect of the present invention, in the apparatus according to any one of the first to third aspects, the retaining portion is located at a position where the retainer is not in contact with the male terminal fitting in a state where the retainer is in the temporary locking position. It is characterized by where it is placed.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, a tapered surface inclined with respect to the insertion direction of the male terminal fitting is formed at the front end portion of the guide portion. It has a characteristic where it exists.

<Invention of Claim 1>
In the insertion process of the male terminal fitting, even if a pressing force acts on the tab from the elastically deformed lance, the male terminal fitting is in contact with the guide on the opposite side of the lance. There is no risk that will remain tilted.
Further, in the state where the male terminal fitting is normally inserted and the retainer is moved to the main locking position, the guide portion advances into the insertion region of the male terminal fitting behind the square tube portion. Since it is arranged to correspond to the edge of the square tube part in the width direction, and the wire crimping part is narrower than the square tube part, even if the retainer moves to the full locking position, the guide part does not There is no risk of interference with the wire crimping part.

<Invention of Claim 2>
Since the guide portion is continuous along the insertion direction of the male terminal fitting, the male terminal fitting can be stably held in the correct posture.

<Invention of Claim 3>
In the insertion process of the male terminal fitting, since the posture of the male terminal fitting is correctly maintained by the guide portion before the tab receives the elastic pressing force from the lance, the posture of the male terminal fitting is stabilized throughout.

<Invention of Claim 4 >
Since the retaining portion is arranged at a position where the retainer is not in contact with the male terminal fitting when the retainer is in the temporary locking position, it may be damaged by cutting or the like due to contact with the male terminal fitting during insertion. Absent. Therefore, the locking allowance between the retaining portion and the male terminal fitting is ensured, and the male terminal fitting can be reliably secured.

<Invention of Claim 5 >
Since the front end of the guide section is tapered, there is no risk of the male terminal fitting hitting the front end of the guide section when the male terminal fitting is removed from the cavity with the retainer moved to the temporary locking position. The terminal fitting can be removed smoothly.

<Embodiment 1>
A first embodiment of the present invention will be described below with reference to FIGS. The connector of this embodiment is composed of a male connector M and a female connector F that can be fitted and detached from each other.
First, the male connector M will be described.
The male connector M includes a male housing 10 (housing which is a constituent element of the present invention), a plurality of male terminal fittings 30 attached to the male housing 10, and a retainer 50 attached to the male housing 10. . In addition, in FIG.8, FIG.10, FIG.11, illustration of the terminal accommodating part 11 is abbreviate | omitted.

  The male housing 10 is made of a synthetic resin, and is formed by integrally forming a terminal housing portion 11 having a block shape and a hood portion 12 extending forward from the outer peripheral edge of the terminal housing portion 11 in a rectangular tube shape. is there. As shown in FIGS. 1 and 2, a plurality of cavities 13 penetrating in the front-rear direction are formed in the terminal housing portion 11 in two upper and lower stages. The rear ends of the cavities 13 are largely opened at the rear end surface of the terminal accommodating portion 11 as an entrance for inserting the male terminal fittings 30, and the front ends of the cavities 13 are inserted through the tabs 32 of the male terminal fittings 30. A hole 14 is opened in the front end surface of the terminal accommodating portion 11 (the back end surface of the hood portion 12). The insertion hole 14 penetrates the front wall of the cavity 13, and a front stop 15 is formed at a position below the insertion hole 14 in the front wall. The front end portion of the lower surface of the cavity 13 serves as a support surface 16 for supporting the normally inserted male terminal fitting 30 from below.

  Each cavity 13 is integrally formed with a lance 17 that is cantilevered forward along the upper surface wall. The lance 17 is arranged at the front end of the cavity 13 in the front-rear direction (a position behind the front stop 15 and substantially the same position as the support surface 16 in the front-rear direction). A retaining projection 18 is formed on the lower surface of the lance 17 (the surface facing the cavity 13). The front surface of the retaining protrusion 18 is a locking surface 18a substantially perpendicular to the front-rear direction (the insertion / removal direction of the male terminal fitting 30 with respect to the cavity 13), and the lower surface of the retaining protrusion 18 is the insertion direction of the male terminal fitting 30. The guide slope 18b is curved so as to form an oblique line. The lance 17 is always in a locking position in which the retaining protrusion 18 protrudes downward from the upper wall of the cavity 13 and advances onto the insertion path of the male terminal fitting 30, but the retaining protrusion 18 is connected to the male terminal. It can be elastically bent so as to retract upward from the insertion path of the metal fitting 30.

  Further, the terminal accommodating portion 11 is formed with an accommodating space 19 that opens on the lower surface thereof. The accommodation space 19 communicates with a region behind the lance 17 in the lower cavity 13 and a region behind the lance 17 in the upper cavity 13. A retainer 50 is assembled into the housing space 19 from below.

  As shown in FIGS. 8 and 10, the hood portion 12 is formed with a relief groove 20 having one side wall notched from the front end to the rear. A release portion 21 that protrudes downward from the front end position is formed at the upper opening edge of the escape groove 20. Further, as shown in FIG. 13 and FIG. 14, the region above and below the relief groove 20 on the side wall is thicker than the other side wall. The rigidity is increased. On the outer side surface of the thick side wall, a relief slope 22 in a form in which a region along the upper opening edge of the relief groove 20 and a region along the lower opening edge of the relief groove 20 are cut out in a tapered shape. Is formed.

  As shown in FIGS. 8 and 10, the upper surface wall 25 of the hood portion 12 is formed with a locking protrusion 23 that protrudes downward from a substantially central position in the left-right direction. As shown in FIGS. 13 and 14, the upper surface wall 25 on which the locking projections 23 are formed is flush with the upper surface (outer surface) over the entire width, whereas the lower surface (inner surface) is A substantially central region in the width direction is shallow and recessed. Thereby, the part of the both ends side in the width direction of the upper surface wall 25 becomes the thick part 25a, and the approximate center area | region in the width direction is the thin part 25b thinner than the thick part 25a. The reason why the thickness of the upper surface wall 25 is made different is to suppress warping deformation of the upper surface wall 25 accompanying cooling when the male housing 10 is formed with a mold. Thereby, the positional accuracy in the up-down direction of the locking projection 23 is enhanced.

  Furthermore, a pair of first finger hooks 26 projecting at the end edge on the escape groove 20 side are formed on both upper and lower outer surfaces of the hood portion 12. On the other hand, on the outer surface of the side wall of the hood portion 12 opposite to the escape groove 20, a pair of second finger hook portions 27 are formed to protrude. Of the pair of second finger hanging portions 27, one second finger hanging portion 27 is disposed at an upper end portion in a substantially first half region of the side wall, and the other second finger hanging portion 27 is disposed at a lower end portion in a substantially lower half region of the side wall. Has been.

  As shown in FIGS. 3 to 5, the male terminal fitting 30 is elongated in the front-rear direction as a whole, has a horizontally long rectangular tube portion 31, a tab 32 protruding forward from the front end of the rectangular tube portion 31, and the rectangular tube portion 31. An electric wire crimping portion 33 extending rearward from the rear end is provided. The rectangular tube portion 31 includes a top plate 34 connected to the tab 32, a pair of left and right side plates 35 extending at a substantially right angle from the left and right side edges of the top plate 34, and a substantially right angle from the bottom edge of the left and right side plates 35 to the inside. And a pair of lower surface plates 36 that extend to each other. The upper surface of the tab 32 and the upper surface of the upper surface plate 34 of the rectangular tube portion 31 are continuous with each other. A locking hole 37 that opens in a square shape is formed in the upper surface plate 34, and a locking surface 18 a of the lance 17 is locked to the front edge of the locking hole 37. The square tube portion 31 is formed with a pair of plate-like stabilizers 38 that rise upward from the left and right side edges of the locking hole 37.

  A curved portion 39 is formed at the rear end of the rectangular tube portion 31 so as to extend upward in an arc from the rear end edge at the extended end portion of the both lower surface plates 36. And the area | region between the curved part 39 and the side board 35 in the rear-end edge of the lower surface board 36 becomes the latching | locking part 40 for the retainer 50 to latch. The locking portion 40 is located behind the locking hole 37.

  The wire crimping portion 33 includes a substrate 41 that is flush with the rear end of the upper surface plate 34 of the rectangular tube portion 31, and two pairs of front and rear crimping pieces 42 that extend downward from the left and right side edges of the substrate 41. This is a well-known form. The exposed conductor 44 of the covered electric wire 43 and the front end portion of the insulating coating 45 are fixed to the electric wire crimping portion 33 by crimping. The width dimension of the wire crimping portion 33 in a state where the covered electric wire 43 is fixed is smaller than the width dimension of the rectangular tube portion 31, and the wire crimping portion 33 is disposed at the center in the width direction of the rectangular tube portion 31. Further, in the process in which the male terminal fitting 30 is inserted into the cavity 13 and in the state in which the male terminal fitting 30 is properly inserted, the outer surface of the side plate 35 of the rectangular tube portion 31 is in sliding contact with the inner wall surface of the cavity 13. Alternatively, they face each other with a slight gap. Therefore, a clearance for allowing the guide portion 58 of the retainer 50 to enter is secured between the inner wall of the cavity 13 and the side surface of the wire crimping portion 33 as will be described later. Furthermore, the vertical dimension of the electric wire crimping portion 33 is smaller than that of the rectangular tube portion 31, and therefore the lower end of the electric wire crimping portion 33 is located above the lower surface of the rectangular tube portion 31 (the lower surface of the lower surface plate 36). Thereby, a space for accommodating the retaining portion 57 of the retainer 50 is secured behind the rectangular tube portion 31.

  The retainer 50 is made of a synthetic resin, and includes a base portion 51 that has a horizontal plate shape, a pair of side wall portions 52 that rise in a plate shape from left and right side edges of the base portion 51, and both side walls that rise upward from the base portion 51. It is configured to include a removal function part 53 that continues to the inner surface of the part 52. The retainer 50 is assembled to the male housing 10 so that both side wall portions 52 are in sliding contact with the outer surface of the terminal accommodating portion 11 and the removal function portion 53 is accommodated in the accommodating space 19. The assembled retainer 50 can be held at the temporary locking position and the main locking position by known locking means (not shown) such as locking between the protrusion and the hole.

  A locking projection 54 corresponding to the upper cavity 13 is formed on the upper edge of the removal function portion 53 so as to protrude upward. Further, a plurality of through holes 55 corresponding to the lower cavity 13 are formed in the removal function part 53 so as to penetrate in the front-rear direction. On the upper surface of the through-hole 55, a pair of left and right cutouts 56 are formed to avoid interference with the stabilizer 38 of the male terminal fitting 30. A pair of retaining portions 57 are formed on the left and right inner side surfaces of the through-hole 55 so that the front end portions of the through-hole 55 are projected inward. The retaining portion 57 occupies an approximately half area of the through hole 55 in the vertical direction, and the front surface of the retaining portion 57 is continuous with the front surface of the removal function portion 53. The upper end portion of the retaining portion 57 is engaged with the engaging portion 40 of the male terminal fitting 30 from behind.

  Further, the through hole 55 is formed with a pair of guide portions 58 in a form in which both the left and right inner side surfaces are projected. The guide portion 58 occupies a substantially lower half region of the through hole 55 in the vertical direction, and the upper surface of the guide portion 58 is located above the upper end of the retaining portion 57 and is in the front-rear direction (the male terminal fitting 30 with respect to the cavity 13). In the direction parallel to the direction of insertion of the elongated contact surface 59 extending linearly continuously. In the front-rear direction, the guide portion 58 (sliding contact surface 59) is located behind the rear end of the upper surface of the retaining portion 57. Further, the length of the sliding contact surface 59 in the front-rear direction is substantially the same as the front-rear length of the rectangular tube portion 31. Furthermore, the distance between the mutually facing inner surfaces of the pair of guide portions 58 is larger than the distance between the mutually facing inner surfaces of the pair of retaining portions 57.

  A tapered surface 60 is formed at the front end of the guide portion 58 so as to be inclined downward with respect to the insertion direction of the male terminal fitting 30. The front end of the tapered surface 60 is connected at an obtuse angle to the upper surface of the retaining portion 57, and the rear end of the tapered surface 60 is connected at an obtuse angle to the front end of the sliding contact surface 59. The rear end of the guide portion 58 is an inclined surface 61 that is inclined so as to have an upward slope with respect to the insertion direction of the male terminal fitting 30. The front end of the inclined surface 61 is connected at an obtuse angle to the rear end of the sliding contact surface 59.

In a state where the retainer 50 is held at the temporary locking position, as shown in FIG. 1, the upper surface of the through-hole 55 is flush with the upper surface of the cavity 13, and the sliding contact surface of the guide portion 58. 59 is located at the same height as the bearing surface 16 of the cavity 13. The guide part 58 advances inward from the inner side surface of the cavity 13. The retaining portion 57 stands by at a position below the support surface 16 and the sliding contact surface 59 (a position retracted from the insertion region of the male terminal fitting 30).
In a state where the retainer 50 has moved from the temporary locking position to the main locking position obliquely upward and forward, the upper end portion of the retaining portion 57 and the upper end portion of the guide portion 58 are advanced into the cavity 13 as shown in FIG. The upper surface of the retaining portion 57 and the slidable contact surface 59 are positioned above the support surface 16.

Next, the operation of this embodiment will be described.
When the male terminal fitting 30 is inserted into the male housing 10 in the male connector M, the retainer 50 is held in the temporary locking position, and the male terminal fitting 30 is inserted into the cavity 13 from the rear in this state. In the insertion process, the upper surface of the tab 32 and the upper surface of the rectangular tube portion 31 are in sliding contact with the upper surface of the cavity 13 and the upper surface of the through hole 55 of the retainer 50. The front end of the rectangular tube portion 31 reaches the rear end of the guide portion 58 before the tip end of the tab 32 reaches the lance 17. Then, the left and right edge portions in the width direction of the lower surface of the rectangular tube portion 31 are in slidable contact with the slidable contact surface 59, thereby restricting downward displacement of the rectangular tube portion 31. Further, since the rectangular tube portion 31 is sandwiched between the sliding contact surface 59 and the upper surface of the through hole 55, the rectangular tube portion 31 (male terminal fitting 30) is inclined forward or backward. In this way, the inclination of the posture is regulated.

  When the insertion of the male terminal fitting 30 proceeds from this state, the tip of the tab 32 interferes with the retaining projection 18 of the lance 17, and the tab 32 tries to advance while elastically bending the lance 17 upward. Here, as shown in FIG. 1, the rectangular tube portion 31 is held between the upper surface of the through hole 55 and the sliding contact surface 59 of the guide portion 58, and the forward tilt of the male terminal fitting 30 is restricted. Therefore, even if the tab 32 receives the elastic pressing force from above due to the elastic restoring force of the lance 17, it does not move downward. That is, the tab 32 can maintain a regular height. Therefore, the tab 32 is smoothly inserted into the insertion hole 14 without the tip of the tab 32 striking a portion below the insertion hole 14 in the front wall. Moreover, since the guide part 58 is the form continued along the insertion direction of the male terminal metal fitting 30, the male terminal metal fitting 30 can be stably hold | maintained in a correct attitude | position.

  When the male terminal fitting 30 reaches the normal insertion position where the front end of the rectangular tube portion 31 is brought into contact with the front stop portion 15, the lance 17 is elastically restored and the retaining projection 18 is moved as shown in FIG. The male terminal fitting 30 is primarily locked by being locked in the locking hole 37, and the male terminal fitting 30 is prevented from being removed by this primary locking. Further, the rectangular tube portion 31 passes through the guide portion 58 and the retaining portion 57 and is positioned in front of the retaining portion 57.

  From this state, when the retainer 50 is moved to the main locking position, the upper end portion of the retaining portion 57 is secondarily locked to the locking portion 40 of the male terminal fitting 30 from the rear, and this secondary locking action. As a result, the male terminal fitting 30 is brought into the retaining state. In other words, the male terminal fitting 30 is securely held in the retaining state by the lance 17 and the retainer 50.

  When the retainer 50 is moved to the final locking position, the upper edge of the guide portion 58 that protrudes inward from the inner surface of the through hole 55 is the same height as the wire crimping portion 33 (inside the cavity 13). The guide portion 58 is arranged so as to correspond to the end edge portion of the rectangular tube portion 31 in the width direction, and the wire crimping portion 33 is connected to the cavity 13. Since it is narrower than the rectangular tube portion 31 that is in sliding contact with the inner side surface, the guide portion 58 does not interfere with the wire crimping portion 33.

  Further, since the retaining portion 57 is disposed at a position where the retainer 50 is not in contact with the male terminal fitting 30 in a state where the retainer 50 is in the temporary locking position, cutting or the like caused by contact with the male terminal fitting 30 during insertion, etc. Will not be damaged. Therefore, a locking allowance between the retaining portion 57 and the male terminal fitting 30 is ensured, and the male terminal fitting 30 can be reliably secured.

  Moreover, since the tapered surface 60 inclined with respect to the insertion direction of the male terminal metal fitting 30 is formed in the front-end part of the guide part 58, the male terminal metal fitting 30 is moved in the state which moved the retainer 50 to the temporary latching position. There is no possibility that the locking portion 40 of the square tube portion 31 will abut against the front end of the guide portion 58 and the male terminal fitting 30 can be pulled out smoothly when pulling out from the cavity 13.

Next, the configuration of the female connector F and the operation of fitting / detaching the male connector M and the female connector F will be described.
As shown in FIGS. 9, 12, and 15, the female connector F includes a block-shaped female housing 70 made of synthetic resin, a female terminal fitting 72 accommodated in the female housing 70, and the interior of the female housing 70. And a plate-like slider 73 assembled from the side (a direction orthogonal to the fitting direction of both connectors F and M). A lock groove 71 is formed on the upper surface of the female housing 70, and a lock arm (not shown) is formed inside the lock groove 71.

  The slider 73 is held at a temporary locking position that protrudes greatly with respect to the female housing 70 and a final locking position that is accommodated inside the female housing 70. As a means for restricting the slider 73 at the temporary locking position from moving to the final locking position, the protrusion 75 at the tip of the bending locking piece 74 formed on the slider 73 is brought into contact with the outer surface of the female housing 70. Yes. A tapered release surface 76 is formed on the front surface of the protrusion 75. Further, the slider 73 is formed with a cam groove 77, a retaining projection 78 for retaining the female terminal fitting 71, and an operation portion 79 for moving the slider 73.

  When fitting the male connector M and the female connector F, first, the slider 73 is attached to the female housing 70 at the temporary locking position and the female terminal fitting 72 is inserted. Next, the female connector F is fitted into the hood portion 12 of the male connector M, the slider 73 is allowed to escape and enter the groove 20, and the locking projection 23 is fitted into the lock groove 71. Then, the cam follower 24 at the lower end of the locking projection 23 is engaged with the cam groove 77 of the slider 73, and the release portion 21 of the hood portion 12 comes into contact with the protruding portion 75 of the bending engagement piece 74, thereby bending the engagement. The stop piece 74 is elastically bent, whereby the protrusion 75 is disengaged from the outer surface of the female housing 70, and the slider 73 can move to the full locking position. At this time, since the release portion 21 abuts on the tapered release surface 76, the bending locking piece 74 can be smoothly elastically bent by the inclination of the tapered release surface 76. Therefore, the side wall of the hood portion 12 is unlikely to be deformed so as to expand the groove width of the escape groove 20 up and down. In addition, since the upper region and the lower region of the escape groove 20 on the side wall are thick as reinforcing means, the side wall may be deformed so as to expand the escape groove 20 even with this thick form. It is prevented.

  From this state, when the operating portion 79 is pushed and the slider 73 is pushed into the female housing 70, both the connectors F and M are drawn by the cam action caused by the engagement between the cam groove 77 and the cam follower 24, and the normal fitting state is reached. . When both the connectors F and M are properly fitted, the locking projection 23 and the lock arm are locked, so that the connectors F and M are locked in the fitted state. Here, the upper surface wall 25 of the hood portion 12 is not deformed when the mold is formed, and the positional accuracy in the vertical direction of the locking projection 23 is increased. The lock arm can be securely locked. Further, when the slider 73 is pushed into the full locking position, if the finger is placed on the second finger-hanging portion 27, the finger is unlikely to come off from the outer surface of the hood portion 12, so that workability is improved.

  Further, when detaching both connectors F and M, the operation part 79 is picked with one hand and the outer surface of the hood part 12 is grasped with the other hand. If it is scratched, the hood part 12 can be reliably grasped. In this state, when the slider 73 is pulled out to the temporary locking position, both the connectors F and M are detached. Further, when the slider 73 is slightly pulled out, a clearance is formed between the operation portion 79 and the outer surface of the hood portion 12 by forming the escape slope 22. The part 79 can be picked more reliably and workability is improved.

<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) The moving direction of the retainer may be a direction orthogonal to the insertion direction of the male terminal fitting.
(2) The guide portion may have a plurality of intermittent portions in the insertion direction of the male terminal fitting.
(3) The lance may be arranged on the same side as the side where the retaining portion is retracted when the retainer moves to the temporary locking position.
(4) The guide portion may have a form in which the central portion in the width direction of the rectangular tube portion is in sliding contact.
(5) The upper surface of the guide portion and the upper surface of the retaining portion may be the same height, and when the retainer is in the temporary locking position, the male terminal fitting in the middle of insertion may be in sliding contact with the upper surface of the retaining portion.
(6) In the process of inserting the male terminal fitting, the male terminal fitting may come into contact with the guide portion after the tab contacts the lance. Even in this case, the posture of the male terminal fitting inclined by the pressing of the lance can be corrected by the sliding contact with the guide portion.
(7) The front end surface of the guide portion may be positioned at the same position as the front surface of the retaining portion in the front-rear direction. In this case, it is possible to increase the locking allowance between the retainer and the male terminal fitting by locking the front surface of the guide portion to the male terminal fitting.
(8) With the retainer in the temporary locking position, the male terminal fitting in the insertion process may be in sliding contact with the retaining portion.

Sectional drawing showing the insertion process of a male terminal metal fitting in the male connector of Embodiment 1 Sectional view showing the state that the male terminal fitting is properly inserted in the male connector and the retainer has moved to the final locking position Partial cutaway side view of male terminal fitting Front view of the male terminal fitting showing the positional relationship with the retainer in the temporary locking position Front view of the male terminal fitting showing the positional relationship with the retainer in the final locking position Cross section of retainer Retainer front view Perspective view of male connector Perspective view of female connector Perspective view showing the mating process of male connector and female connector A perspective view showing a state where the male connector and the female connector are completely fitted. Rear view of female connector Front view of male connector showing the mating process with female connector Front view of male connector showing mating with female connector Cross section of female connector Top view of slider Side view of slider

Explanation of symbols

M ... Male connector (connector)
10 ... Male housing (housing)
DESCRIPTION OF SYMBOLS 13 ... Cavity 17 ... Lance 30 ... Male terminal metal fitting 31 ... Square tube part 32 ... Tab 33 ... Electric wire crimping part 50 ... Retainer 57 ... Stopping part 58 ... Guide part 60 ... Tapered surface

Claims (5)

A housing having a cavity therein, and an lance capable of being elastically bent is formed on the inner wall of the cavity;
A male terminal fitting having a tab at the front end and inserted into the cavity from behind;
A retainer having a retaining portion that is locked to the male terminal fitting,
The retainer moves between a temporary locking position that allows the male terminal metal fitting to be inserted into the housing and a final locking position that locks the retaining portion on the inserted male terminal metal fitting. Can be attached, and
By locking the lance and the retaining portion to the inserted male terminal fitting, the male terminal fitting is secured.
In the state in which the retainer is in the temporary locking position, the retainer is disposed so as to be positioned on the opposite side of the lance and behind the lance with the male terminal fitting interposed therebetween. In the connector provided with the guide portion for slidingly contacting the male terminal fitting ,
The male terminal fitting has a rectangular tube portion continuous with the rear end of the tab, and a wire connecting portion that is narrower than the rectangular tube portion and continuous with the rear end of the rectangular tube portion,
A pair of left and right retaining portions are provided,
The guide portion is arranged behind the retaining portion, and a pair of left and right are provided,
When the retainer is moved to the final locking position, the retaining portion and the guide portion advance into the insertion region of the male terminal fitting in the cavity, and the pair of retaining portions are rear ends of the square tube portions. The pair of guide portions are positioned so as to correspond to the edge portions in the width direction of the rectangular tube portion in a state of non-interference with the wire crimping portion. connector.   The connector according to claim 1, wherein the guide portion has a continuous form along the insertion direction of the male terminal fitting.   The said guide part is distribute | arranged to the position which contacts the said male terminal metal fitting before the said tab contacts the said lance in the insertion process of the said male terminal metal fitting. 2. The connector according to 2. The connector according to any one of claims 1 to 3, wherein the retaining portion is disposed at a position where the retainer is not in contact with the male terminal fitting in a state where the retainer is in the temporary locking position. . 5. The connector according to claim 1 , wherein a tapered surface inclined with respect to an insertion direction of the male terminal fitting is formed at a front end portion of the guide portion .

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