connector

Abstract

To suppress reduction in strength of a lance.SOLUTION: A connector 10 includes a terminal fitting 20 and a housing 50. The housing 50 has an extended surface 57. The extended surface 57 is formed on an outer side in a width direction of a cavity 51 and faces one side in a height direction. A lance 52 has a restriction portion 60 and an overhang portion 61. The overhang portion 61 extends from the restriction portion 60 toward a side where the extended surface 57 is located in a width direction. The overhang portion 61 has a facing surface (e.g., a first facing surface 64) opposed to the extended surface 57 in the height direction from one side.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to connectors. [Background technology]

[0002] The connector disclosed in Patent Document 1 includes a housing and a lance. The housing has a cavity into which a terminal fitting can be inserted from the rear. The lance is configured to protrude forward in a cantilever shape. When the terminal fitting is inserted into the cavity, the lance abuts against the terminal fitting and is deflected and deformed, and when the terminal fitting is properly inserted into the cavity, the lance displaces in the return direction to hold the terminal fitting from the rear and prevent it from coming out.

[0003] In this configuration, if a backward pulling force acts on the terminal, there is a concern that when the lance is bent in a direction opposite to the direction of bending deformation during the insertion process of the terminal, the lance may buckle and the force restricting the backward movement of the terminal may decrease. Therefore, Patent Document 1 adopts the following configuration. That is, the inner wall of the cavity is formed with restricting portions protruding from both side surfaces of the inner wall, and abutting portions are formed protruding from both side edges of the lance. Then, when the lance tries to bend in the opposite direction, the abutting portions of the lance abut against the restricting portions, restricting further bending of the lance. Therefore, with the above configuration, buckling of the lance is less likely to occur, and the decrease in the force restricting the backward movement of the terminal can be suppressed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2012-216344 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the technology of Patent Document 1, the bending motion of the lance is restricted by a pair of restricting portions protruding from both sides of the inner wall of the cavity, which reduces the width of the lance in parts, thereby reducing the strength (locking force) of the lance.

[0006] Therefore, the present disclosure provides a technique that can suppress a decrease in strength of the lance. [Means for solving the problem]

[0007] The connector of the present disclosure comprises a terminal fitting and a housing, the housing having a cavity extending in the front-to-rear direction, a lance formed on one side of the height direction of the cavity and capable of flexibly deforming in the height direction, and an extended surface formed outside the width direction of the cavity and facing the one side in the height direction, the terminal fitting has a terminal body arranged in the cavity, the terminal body having a locking portion on the one side in the height direction, the lance having a regulating portion that protrudes into the cavity from the one side in the height direction and can be engaged with the locking portion from the rear, and a protrusion portion that protrudes from the regulating portion in the width direction toward the side where the extended surface is located, and the protrusion portion has an opposing surface that faces the extended surface from the one side in the height direction. Effect of the Invention

[0008] According to the present disclosure, a decrease in strength of the lance can be suppressed. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view of a connector according to a first embodiment. [Diagram 2] FIG. 2 is a perspective view of the front portion of the terminal fitting as viewed from the side. [Diagram 3] FIG. 3 is a side cross-sectional view showing a state in which the terminal fitting is disposed in the cavity. [Figure 4] FIG. 4 is a cross-sectional view taken along line AA in FIG. [Diagram 5]FIG. 5 is a cross-sectional view showing a state in which the terminal fittings are removed from FIG. [Figure 6] FIG. 6 is a cross-sectional view showing a state in which the lance is bent upward from the state shown in FIG. 5 and comes into contact with the extended surface. [Figure 7] FIG. 7 is a front view of the connector. [Figure 8] FIG. 8 is a side cross-sectional view showing the positional relationship between the locking portion of the terminal fitting disposed in the cavity and the lance. [Figure 9] FIG. 9 is a side cross-sectional view showing a state in which the terminal fitting has moved rearward from the state shown in FIG. 8 and the locking portion has come into contact with the lance. [Figure 10] FIG. 10 is a side cross-sectional view showing a state in which the terminal fitting has been moved further rearward from the state shown in FIG. [Figure 11] FIG. 11 is a bottom cross-sectional view showing the positional relationship between the locking portion of the terminal fitting disposed in the cavity and the lance. [Figure 12] 12 is a bottom cross-sectional view showing a state in which the terminal fitting has moved rearward from the state shown in FIG. 11 and the locking portion has come into contact with the lance. [Figure 13] FIG. 13 is a bottom cross-sectional view showing a state in which the terminal fitting has been moved further rearward from the state shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] [Description of the embodiments of the present disclosure] First, the embodiments of the present disclosure will be listed and described. The connector of the present disclosure comprises: (1) A terminal fitting and a housing, the housing having a cavity extending in a front-to-rear direction, a lance formed on one side of the cavity in a height direction and capable of flexibly deforming in the height direction, and an extended surface formed on the outside of the cavity in a width direction and facing the one side in the height direction, the terminal fitting having a terminal body arranged in the cavity, the terminal body having a locking portion on the one side in the height direction, the lance having a regulating portion protruding into the cavity from the one side in the height direction and capable of locking with the locking portion from the rear, and a protruding portion protruding from the regulating portion in the width direction toward a side where the extended surface is located, the protruding portion having an opposing surface that faces the extended surface from the one side in the height direction.

[0011] In the above connector, when a rearward force is applied to the terminal fitting arranged in the cavity, the restricting portion engages with the locking portion of the terminal fitting from the rear. At this time, even if the lance is pushed by the locking portion and bends toward the other side in the height direction (toward the terminal fitting), the opposing surface of the lance comes into contact with the extended surface, thereby restricting further bending. Moreover, the opposing surface and the extended surface are arranged outside the width direction of the cavity. Therefore, there is no need to reduce the width dimension of the lance, and therefore a decrease in the strength (locking force) of the lance can be suppressed.

[0012] (2) The housing has a front wall located at the front end of the housing and a punch hole for the lance defined by an edge on one side of the front wall in the height direction, the lance being visible from the front through the punch hole, and the front wall may have a tab insertion hole that is closed all around at a position communicating with the cavity.

[0013] In conventional connectors, the punch hole of the lance is formed to communicate with the tab insertion hole. In this configuration, a part of the circumferential direction of the tab insertion hole is missing, so a separate front member having a tab insertion hole whose entire circumference is closed is generally attached. However, a configuration in which a separate front member is provided leads to an increase in the number of parts. In this respect, the connector described above increases the force with which the lance restricts the rearward movement of the terminal fitting, thereby preventing the lance from protruding toward the cavity, and making it possible to partition the punch hole of the lance with an edge on one side in the height direction of the front wall, and the entire circumference of the tab insertion hole is closed. Therefore, the connector described above does not require a separate front member, and can suppress an increase in the number of parts.

[0014] (3) The extended surface may be formed on only one outer side of the cavity in the width direction, and the protruding portion may extend from the regulating portion to only the one side in the width direction where the extended surface is located.

[0015] Since the connector has an extended surface and a protruding portion provided on only one side in the width direction, the housing can be prevented from becoming larger in the width direction compared to a configuration in which the extended surface and the protruding portion are provided on both sides.

[0016] (4) The regulating portion may have a regulating surface facing forward and a recess that is recessed rearward from the regulating surface on one side in the width direction, and the engaging portion may be capable of fitting into the recess on the one side in the width direction while in contact with the regulating surface.

[0017] In a configuration in which the protruding portion is disposed on only one side in the width direction, when the lance shifts to the other side, the contact area between the opposing surface and the extended surface decreases, and the force restricting the lance's bending deformation decreases. In this regard, when a rearward force acts on the terminal fitting and the restricting surface of the lance contacts the locking portion, the end of the locking portion on one side in the width direction fits into the recess, causing the front end of the terminal fitting to swing to one side in the width direction. In this state, when a rearward force acts further on the terminal fitting, the lance is pulled to one side in the width direction. Therefore, the connector can suppress the lance's shift to the other side in the width direction and suppress the reduction in the force restricting the lance's bending deformation.

[0018] (5) The lance may have a second opposing surface that intersects with the opposing surface and faces the one side in the width direction, and the second opposing surface may be positioned opposite an inner surface of the cavity on the one side in the width direction with the opposing surface in contact with the extension surface.

[0019] According to the above connector, even if the lance is bent to one side in the width direction with the opposing surface of the lance in contact with the extension surface, the second opposing surface comes into contact with the inner surface of the cavity on one side in the width direction, thereby restricting further bending deformation. Therefore, the above connector can stabilize the position of the lance in the width direction, and as a result, can more stably restrict rearward movement of the terminal fitting.

[0020] [Details of the embodiment of the present disclosure] Specific examples of the present disclosure will be described below with reference to the drawings. Note that the present invention is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0021] [Embodiment 1] FIG. 1 discloses a connector 10 according to a first embodiment. The connector 10 is fitted to a mating connector (not shown). In the following description, the direction in which the connector 10 is fitted to the mating connector is the front of the connector 10, and the opposite direction is the rear of the connector 10. The up-down direction in FIGS. 3 to 10 is the up-down direction of the connector 10. The left-right direction when the connector 10 is viewed from the front is the left-right direction of the connector 10. In this embodiment, the lower side corresponds to "one side in the height direction", the upper side corresponds to "the other side in the height direction", the right side corresponds to "one side in the width direction", and the left side corresponds to "the other side in the width direction".

[0022] <Configuration of Connector 10> As shown in FIG. 1, the connector 10 includes a terminal fitting 20 and a housing 50.

[0023] A plurality of terminal fittings 20 (nine in this embodiment) are provided. In Figs. 1 and 7, six terminal fittings are omitted and only three terminal fittings are shown. The terminal fittings 20 are female type and conductive. The terminal fittings 20 are formed by bending a metal plate. As shown in Figs. 2 and 3, the terminal fittings 20 have a terminal body 21 and an electric wire connection portion 22.

[0024] 2 and 3, the terminal body 21 extends in the front-rear direction. The terminal body 21 has a cylindrical portion 23, a resilient contact portion 24, a locking portion 25, and erroneous insertion prevention protrusions 26 and 27.

[0025] As shown in Figs. 2 and 3, the tube portion 23 has a tube shape (more specifically, a rectangular tube shape) that extends in the front-rear direction and is open on both the front and rear sides.

[0026] The elastic contact portion 24 is disposed within the tubular portion 23 as shown in Fig. 3. The elastic contact portion 24 has a front end connected to a lower plate portion constituting the tubular portion 23 and extends rearward in a cantilever shape as shown in Fig. 1. When the connector 10 is mated with a mating connector (not shown), the elastic contact portion 24 is electrically connected to a mating terminal fitting (not shown).

[0027] As shown in Figs. 2 to 4, the locking portion 25 is provided on the lower end side of the terminal body 21. The locking portion 25 protrudes downward from the lower surface of the tube portion 23. The locking portion 25 has a first protrusion 31, a second protrusion 32, and a connecting portion 33. The first protrusion 31 and the second protrusion 32 each protrude downward from the lower surface of the terminal body 21. The first protrusion 31 and the second protrusion 32 are arranged at a distance from each other in the left-right direction. The first protrusion 31 is arranged to the right of the second protrusion 32. The first protrusion 31 is provided at the right end of the locking portion 25, and the second protrusion 32 is provided at the left end of the locking portion 25. The second protrusion 32 has a second rear surface portion 32A that is inclined downward toward the rear. The first protruding portion 31 has a first rear surface portion 31A that is inclined downward toward the rear at a steeper angle than the second rear surface portion 32A. The second rear surface portion 32A is disposed forward of the first rear surface portion 31A. The connecting portion 33 connects the lower ends of the first protruding portion 31 and the second protruding portion 32 to each other.

[0028] As shown in Fig. 3, the mis-insertion prevention projections 26, 27 are disposed rearward of the locking portion 25. The mis-insertion prevention projection 26 protrudes downward from the lower surface of the tubular portion 23. The mis-insertion prevention projection 27 protrudes upward from the upper surface of the tubular portion 23. When the terminal fitting 20 is inserted upside down into the cavity 51, the mis-insertion prevention projections 26, 27 come into contact with a step in the cavity 51, restricting the insertion of the terminal fitting 20.

[0029] 3, the electric wire connecting portion 22 is disposed rearward of the erroneous insertion prevention protrusions 26, 27. A conductor 81 of an electric wire 80 is electrically connected to the electric wire connecting portion 22 by crimping or the like.

[0030] The housing 50 is made of synthetic resin and has insulating properties. As shown in Fig. 3, the housing 50 has a cavity 51 and a lance 52. The cavity 51 extends in the front-rear direction. The cavity 51 opens to the rear of the housing 50, and the terminal fitting 20 can be inserted from the rear.

[0031] A plurality of cavities 51 are provided lined up in the left-right and up-down directions. As shown in Figures 4 and 5, the inner wall surface of the cavity 51 has a lance-facing surface 53, a first side surface 54, and a second side surface 55. The lance-facing surface 53 faces the lance 52 from above. The tubular portion 23 of the terminal fitting 20 is disposed between the lance 52 and the lance-facing surface 53.

[0032] As shown in FIG. 5, the first side surface 54 and the second side surface 55 face each other in the left-right direction. The first side surface 54 forms the right inner wall surface of the cavity 51 and faces leftward. The second side surface 55 forms the left inner wall surface of the cavity 51 and faces rightward. The terminal body 21 (more specifically, the tubular portion 23) of the terminal fitting 20 is disposed between the first side surface 54 and the second side surface 55. The upper ends of the first side surface 54 and the second side surface 55 are connected to each other via the lance-facing surface 53. The lower ends of the first side surface 54 and the second side surface 55 form an opening 56 that opens downward. The first side surface 54 corresponds to an example of "an inner surface on one side in the width direction of the cavity 51".

[0033] As shown in Figures 4 and 5, the housing 50 has an extended surface 57. The extended surface 57 is formed on the outer side in the left-right direction of the cavity 51. In other words, the extended surface 57 is formed to the right of the first side surface 54. The extended surface 57 is disposed facing downward. The extended surface 57 intersects with the first side surface 54. The left end of the extended surface 57 is continuous with the lower end of the first side surface 54.

[0034] As shown in Fig. 3, the lance 52 is disposed on the lower end side of the cavity 51 and is capable of bending and deforming in the vertical direction. The lance 52 extends forward in a cantilever shape. The lance 52 protrudes into the cavity 51. As shown in Fig. 4, the lance 52 has a restricting portion 60 and a protruding portion 61.

[0035] As shown in FIG. 3, the restricting portion 60 is downwardThe restricting portion 60 protrudes into the cavity 51 from the first side surface 54 and the second side surface 55 in the left-right direction, as shown in FIG. 4. The restricting portion 60 is arranged behind the locking portion 25 of the terminal fitting 20 arranged in the cavity 51, as shown in FIG. 3. The restricting portion 60 restricts the rearward movement of the terminal fitting 20 by coming into contact with the locking portion 25 of the terminal fitting 20 moving rearward. The restricting portion 60 has a restricting surface 62 and a recess 63, as shown in FIGS. 8 and 11.

[0036] The restricting surface 62 is formed from the center to the left end of the restricting portion 60 in the left-right direction. The restricting surface 62 has a first surface 62A facing forward, a second surface 62B inclined downward from the lower end of the first surface 62A toward the rear, and a corner portion 62C formed by the first surface 62A and the second surface 62B. The first surface 62A faces the second rear surface portion 32A of the locking portion 25 from the rear.

[0037] The recess 63 is recessed rearward from the restriction surface 62 at the right end of the restriction portion 60. The recess 63 is formed in a stepped shape with respect to the restriction surface 62 on the right side of the restriction surface 62. As shown in FIG. 8, a back surface 63A of the recess 63 faces the first rear surface portion 31A of the locking portion 25 from the rear.

[0038] As shown in FIG. 5, the protruding portion 61 protrudes rightward from the restricting portion 60 and protrudes further to the right than the first side surface 54. The protruding portion 61 has a first opposing surface 64 that faces the extended surface 57 in the up-down direction. The first opposing surface 64 corresponds to an example of an "opposing surface". The first opposing surface 64 can contact the extended surface 57 when the lance 52 is deflected upward. When the first opposing surface 64 contacts the extended surface 57, further upward deflection of the lance 52 is restricted. The protruding portion 61 is provided only on the right side of the restricting portion 60. That is, in the left-right direction, the center of the lance 52 is offset rightward with respect to the center of the cavity 51.

[0039] As shown in FIG. 5, the lance 52 has a second opposing surface 65. The second opposing surface 65 faces to the right. The second opposing surface 65 intersects with the first opposing surface 64. The lower end of the second opposing surface 65 is connected to the left end of the first opposing surface 64. As shown in FIG. 6, the second opposing surface 65 faces the first side surface 54 in the left-right direction when the first opposing surface 64 is in contact with the extension surface 57. Even if the lance 52 is deflected to the right, the contact of the second opposing surface 65 with the first side surface 54 restricts further deflection.

[0040] As shown in Figs. 3 and 7, the housing 50 has a front wall 70, a tab insertion hole 71, a punch hole 72 for the lance 52, and a partition wall 73. The front wall 70 is disposed at the front end of the housing 50. The front wall 70 is disposed in front of the cavity 51 and restricts the forward movement of the terminal fitting 20 disposed in the cavity 51. The tab insertion hole 71 penetrates the front wall 70 in the front-rear direction and communicates with the cavity 51. The tab insertion hole 71 has a shape in which the entire circumference is closed. The tab insertion hole 71 has a tapered surface 74 that expands toward the front. The tapered surface 74 is formed around the entire circumference of the tab insertion hole 71. The punch hole 72 for the lance 52 is disposed below the tab insertion hole 71. The punch hole 72 for the lance 52 is defined by the lower end edge of the front wall 70. The punch hole 72 of the lance 52 is a hole formed when the die for forming the lance 52 is punched. The lance 52 can be seen from the front through the punch hole 72 of the lance 52. The partition wall 73 is a wall that separates the tab insertion hole 71 and the punch hole 72 of the lance 52.

[0041] <Actions and Effects of Connector 10> The terminal fitting 20 is inserted into the cavity 51 of the housing 50 from the rear. In the process of inserting the terminal fitting 20 into the cavity 51, the lance 52 is pushed by the terminal fitting 20 and is bent downward. When the terminal fitting 20 reaches the correct insertion position, the lance 52 returns to its original shape by its own elastic force. As a result, the terminal fitting 20 is disposed in the cavity 51, and the restricting portion 60 of the lance 52 is disposed behind the locking portion 25 of the terminal fitting 20, as shown in Figures 8 and 11.

[0042] When the electric wire 80 connected to the terminal fitting 20 is pulled rearward while the terminal fitting 20 is disposed in the cavity 51, a rearward force acts on the terminal fitting 20. When the terminal fitting 20 moves rearward, the locking portion 25 of the terminal fitting 20 comes into contact with the lance 52, as shown in Figs. 9 and 12. More specifically, the second rear surface portion 32A of the locking portion 25 comes into contact with the corner portion 62C of the restricting portion 60. This restricts the rearward movement of the terminal fitting 20.

[0043] Furthermore, when a rearward force acts on the terminal fitting 20, the lance 52 is pushed by the locking portion 25 and is deflected upward. Then, as shown in FIG. 10, when the first opposing surface 64 of the lance 52 comes into contact with the extended surface 57, further deflection of the lance 52 is restricted. Moreover, the first opposing surface 64 and the extended surface 57, which restrict the upward deflection of the lance 52, are disposed outside the left-right direction of the cavity 51 (more specifically, to the right of the first side surface 54). Therefore, it is not necessary to reduce the width dimension of the lance 52, and therefore a decrease in the strength (locking force) of the lance 52 can be suppressed. Therefore, the connector 10 can suppress the deflection of the lance 52, which restricts the rearward movement of the terminal fitting 20, while suppressing a decrease in the strength (locking force) of the lance 52.

[0044] Furthermore, since the connector 10 has the protruding portion 61 provided only on the right side, the housing 50 can be prevented from becoming large in size in the left-right direction, compared to a configuration in which the protruding portions 61 are provided on both sides.

[0045] However, in a configuration in which the overhanging portion 61 is disposed only on the right side, when the lance 52 is shifted to the left, the contact area between the first opposing surface 64 and the extended surface 57 is reduced, and the force restricting the bending deformation of the lance 52 is reduced. In this regard, in the connector 10, when a rearward force acts on the terminal fitting 20 and the lance 52 comes into contact with the locking portion 25, as shown in FIG. 13, the right end of the locking portion 25 fits into the recess 63 of the lance 52, and the front end of the terminal fitting 20 swings to the right. In this state, when a rearward force further acts on the terminal fitting 20, the lance 52 is pulled to the right. Therefore, the connector 10 can suppress the leftward shift of the lance 52 and suppress the reduction in the force restricting the bending deformation of the lance 52.

[0046] However, in the above-mentioned configuration, there is a concern that the lance 52 may bend and deform to the right, which may destabilize the function of the lance 52 to restrict the rearward movement of the terminal fitting 20. In this regard, the lance 52 has a second opposing surface 65 that opposes the first side surface 54 in the left-right direction when the first opposing surface 64 of the lance 52 is in contact with the extended surface 57. Therefore, even if the lance 52 is bent and deformed to the right when the first opposing surface 64 of the lance 52 is in contact with the extended surface 57, the second opposing surface 65 comes into contact with the first side surface 54, thereby restricting further bending and deformation. Therefore, the connector 10 can stabilize the position of the lance 52 in the left-right direction, and as a result, can more stably restrict the rearward movement of the terminal fitting 20.

[0047] With this configuration, the lance 52 has an increased force for restricting the rearward movement of the terminal fitting 20, and is prevented from protruding toward the cavity 51. The punch hole 72 is defined by the lower edge of the front wall 70, and the tab insertion hole 71 is formed in a shape that is closed all around. Therefore, according to the connector 10, there is no need to separately provide a front member having a tab insertion hole that is closed all around, and an increase in the number of parts can be suppressed.

[0048] [Another embodiment of the present disclosure] The embodiments disclosed herein should be considered as illustrative in all respects and not restrictive. (1) In the above embodiment, the protruding portion is provided only on the right side of the restricting portion. However, the protruding portion may be provided on both the left and right sides. (2) In the above embodiment, a partition wall is provided, but a partition wall may not be provided. That is, the punch hole of the lance may be connected to the tab insertion hole. In other words, the punch hole of the lance may be configured as a punch hole for both the lance and the tab insertion hole. (3) In the above embodiment, the lance has a recess. However, the lance may have no recess. (4) In the above embodiment, the lance has a second opposing surface that faces the first side surface in the left-right direction, but the lance may not have a second opposing surface. For example, the lance may have a configuration in which there is no step between the protruding portion and the restricting portion. (5) In the above embodiment, the second opposing surface intersects with the first opposing surface, but the second opposing surface may not intersect with the first opposing surface. For example, a step may be provided between the second opposing surface and the first opposing surface. [Explanation of symbols]

[0049] 10…Connector 20...Terminal metal fitting 21...Terminal body 22…Electric wire connection part 23...Cylinder part 24...Elastic contact part 25…Latching part 26…Protrusion to prevent incorrect insertion 27…Protrusion to prevent incorrect insertion 31...first protrusion 31A…1st rear part 32...Second protrusion 32A…Second rear part 33...Connection part 50…Housing 51…Cavity 52…Lance 53…Lance facing surface 54...First side surface (inner surface on one side in the width direction of the cavity) 55…Second side 56…Opening 57…Extension surface 60…Regulation Department 61...Protruding part 62...Regulatory aspects 62A…Side 1 62B…Second side 62C…Corner 63…Recess 63A…back side 64…First opposing surface (opposing surface) 65…Second opposing surface 70...Front wall 71...Tab insertion hole 72…Lance punch hole 73...Partition wall 74...Tapered surface 80...Electric wire 81...Conductor

Claims

1. The terminal fitting and the housing are provided. The housing includes: A cavity extending in the front-rear direction; a lance formed on one side of the cavity in a height direction and capable of being deflected in the height direction; An extension surface is formed on the outer side of the cavity in the width direction and faces the one side in the height direction, The terminal fitting has a terminal body disposed in the cavity, The terminal body has a locking portion on the one side in the height direction, The lance is a restricting portion that protrudes into the cavity from the one side in the height direction and is capable of being engaged with the engaging portion from behind; a protruding portion protruding from the restricting portion to a side where the extended surface is located in the width direction, The protruding portion has an opposing surface that faces the extension surface from the one side in the height direction, The extension surface is formed only on one outer side of the cavity in the width direction, The protruding portion protrudes from the restricting portion only toward the one side in the width direction where the extension surface is located, The restricting portion has a restricting surface facing forward and a recessed portion recessed rearward from the restricting surface on the one side in the width direction, A connector, wherein the engaging portion is capable of fitting into the recess on the one side in the width direction while in contact with the regulating surface.

2. A terminal fitting and a housing, The housing includes: A cavity extending in the front-rear direction; a lance formed on one side of the cavity in a height direction and capable of being deflected in the height direction; An extension surface is formed on the outer side of the cavity in the width direction and faces the one side in the height direction, The terminal fitting has a terminal body disposed in the cavity, The terminal body has a locking portion on the one side in the height direction, The lance is a restricting portion that protrudes into the cavity from the one side in the height direction and is capable of being engaged with the engaging portion from behind; a protruding portion protruding from the restricting portion to a side where the extended surface is located in the width direction, The protruding portion has an opposing surface that faces the extension surface from the one side in the height direction, The extension surface is formed only on one outer side of the cavity in the width direction, The protruding portion protrudes from the restricting portion only toward the one side in the width direction where the extension surface is located, The lance has a second opposing surface that intersects with the opposing surface and faces the one side in the width direction, A connector, wherein the second opposing surface is positioned opposite an inner surface on the one side of the cavity in the width direction with the opposing surface in contact with the extended surface.

3. The lance has a second opposing surface that intersects with the opposing surface and faces the one side in the width direction, The connector according to claim 1 , wherein the second opposing surface is disposed opposite an inner surface on the one side in the width direction of the cavity with the opposing surface in contact with the extension surface.

4. The housing has a front wall disposed at a front end of the housing, and a punching hole for the lance defined by an edge on one side of the front wall in the height direction, The lance is visible from the front through the die cutout; 4. The connector according to claim 1, wherein the front wall has a tab insertion hole, the entire periphery of which is closed, at a position communicating with the cavity.

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