Lever type connector

Abstract

To provide a lever type connector capable of preventing contact to a lock part of a lever when fitting connectors with each other and is capable of causing a worker to be conscious of the mutual fitting completion of the connectors without being enlarged.SOLUTION: A lever type connector 1 comprises a first connector 10, a second connector 20, and a lever 30. The lever 30 includes: a lock arm 41; a locking projection 42 which is locked to a locked projection 27 in a state where the lock arm 41 is bent by the locked projection 27 of the second connector 20; a depression section 43; and a protection section 36 where at least the depression section 43 is disposed in an internal space. A free end side of the depression section 43 is covered in a predetermined direction by a protruding wall part 38, which is provided in an opening end of the protection section 36 at the side of the free end, in such a manner that operation cannot be performed in a state where fitting of both the connectors is not completed, and the free end side is not covered in the predetermined direction in such a manner that operation can be performed in a state where the fitting of both the connectors is completed.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a lever-type connector. [Background technology]

[0002] Conventionally, mating connectors have been proposed that have male and female connectors that are mated with each other. One such mating connector is a lever-type connector in which a rotatable lever member is attached to one of the connectors, and the rotation of the lever member reduces the mating and disengagement force between the male and female connectors (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2010-73457 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional lever-type connectors described above, when both connectors are completely mated by rotating the lever member, the lever member and, for example, the other connector are locked to each other in order to restrict the operation of the lever member and to ensure the mating. Some of these lever-type connectors are configured such that when the lever member and the other connector are completely locked to each other, a locking sound is emitted so that the operator can confirm that they are properly locked to each other. However, if a finger or the like accidentally touches the locking portion of the lever member during the mating operation, the locking sound may be difficult to hear. In such a case, the operator cannot immediately confirm (perceive) whether the two connectors are completely mated or not, and must check the locked state again.

[0005] On the other hand, some connectors address the above problem by enlarging the protective part that covers the locking part of the lever member to prevent fingers and other objects from touching it. However, this raises the risk of problems such as the lever-type connector becoming larger or it becoming difficult to operate the locking part when disconnecting the two connectors.

[0006] The present invention has been made in consideration of the above-mentioned situation, and its object is to provide a lever-type connector that can prevent contact of the lever with the locking portion when the connectors are mated without increasing the size, and that allows the operator to clearly sense when the connectors have been mated. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, the lever-type connector according to the present invention has the following features. A lever-type connector comprising: a first connector; a second connector that can be mated with and separated from the first connector; and a lever that is attached to the first connector so as to be rotatable between an initial position and a mating completion position, and that mates or disengages the first connector and the second connector by a rotational operation, The lever is A locking arm extending in a predetermined direction and capable of bending and deforming in a direction intersecting the predetermined direction; a locking protrusion provided on the locking arm and releasably locked to a locked protrusion of the second connector at the mating completion position; A push-down portion provided at a free end of the locking arm; a protection section formed in a substantially cylindrical shape extending in the predetermined direction and having an internal space in which at least the depression section is disposed, The locking projection is locked to the locked projection in a state in which the locking arm is deflected by the locked projection, a protruding wall portion protruding toward one end in the intersecting direction so as to close a part of the opening at the free end side of the protective portion; The depression portion is When the first connector and the second connector are in an incomplete mating state, the free end side is covered in the predetermined direction by the protruding wall portion so as to be inoperable, and when the first connector and the second connector are in a complete mating state, the free end side is not covered in the predetermined direction so as to be operable. It is a lever type connector. Effect of the Invention

[0008] According to the present invention, in the incomplete mating state, the free end side of the push-down portion of the lever is covered by the protruding wall portion of the lever, making it impossible to operate the lever, and in the complete mating state, the free end side of the push-down portion is not covered by the protruding wall portion, making it possible to operate the lever. This makes it possible to prevent the lever from coming into contact with the locking portion when the connectors are mated without making the protective portion larger, i.e., without making the lever-type connector larger, and allows the operator to clearly perceive the locking sound at the moment when the first connector and the second connector are mated, i.e., at the moment when the locking protrusion and the locked protrusion are completely engaged with each other.

[0009] The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the following description of the embodiment of the present invention (hereinafter, referred to as "embodiment") with reference to the accompanying drawings. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view of a lever-type connector according to one embodiment of the present invention. [Diagram 2] FIG. 2 is an exploded perspective view of a main part of FIG. [Diagram 3] FIG. 3 is a top view showing a state in which the lever is attached to the first connector. [Figure 4] FIG. 4 is a cross-sectional view taken along line AA in FIG. 1, illustrating a state in which the first connector and the second connector are not yet fully mated. [Diagram 5]FIG. 5 is a cross-sectional view taken along line AA in FIG. 1, showing a state in which the first connector and the second connector have been completely mated (fully mated). [Figure 6] FIG. 6 corresponds to a cross section taken along line AA in FIG. 1 of the lever, and is an enlarged view of the operating portion. [Figure 7] FIG. 7 corresponds to a cross section taken along line AA in FIG. 1, and is an enlarged view of a main portion showing a manner in which the locking projection of the lever is locked to the locked projection of the second connector. [Figure 8] FIG. 8 corresponds to FIG. 7 and is a view for explaining a disengagement operation of the first connector and the second connector which are completely engaged with each other. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, a lever-type connector 1 according to one embodiment of the present invention will be described with reference to the drawings.

[0012] For ease of explanation, the following definitions are used for "front," "rear," "left," "right," "upper," and "lower," as shown in FIG. 1 and elsewhere. The "front-rear direction," "left-right direction," and "up-down direction" are perpendicular to one another. The front-rear direction corresponds to the "predetermined direction" of the present invention. The left-right direction corresponds to the "crossing direction" of the present invention, with the left side corresponding to the "one end" of the present invention and the right side corresponding to the "other end" of the present invention.

[0013] 1 and 2, the lever-type connector 1 is configured to include a first connector 10, a second connector 20, and a lever 30. The lever-type connector 1 is configured such that the housing 11 of the first connector 10 can be fitted to and separated from the housing 21 of the second connector 20, and the fitting and disengagement of the first connector 10 to and from the second connector 20 is assisted by rotating the lever 30. The first connector 10, the second connector 20, and the lever 30 that constitute the lever-type connector 1 will be described below in order.

[0014] First, a description will be given of the first connector 10. As shown in Fig. 2, the first connector 10 has a housing 11 having a plurality of terminal accommodating chambers (reference numbers omitted).

[0015] A cylindrical pivot shaft 12 protruding outward in the up-down direction is provided on each of the upper and lower surfaces of the housing 11 at approximately the center in the front-rear and left-right directions (see Figs. 2 to 5). The pivot shaft 12 is inserted into a shaft hole 33 of a lever 30 (described later) (see Fig. 3) and functions as a pivot shaft of the lever 30.

[0016] Guide ribs 13 that protrude outward in the up-down direction and extend in the front-rear direction are provided at the rear ends of both left-right ends on the upper and lower surfaces of the housing 11 (see Figs. 2 to 5). The guide ribs 13 are inserted into guide grooves 26 of the second connector 20 (described later) (see Figs. 4 and 5) to assist the first connector 10 in sliding relative to the second connector 20.

[0017] A temporary holding protrusion 14 that protrudes outward in the up-down direction is provided on the upper and lower surfaces of the housing 11 in the right region in the left-right direction (see Figs. 2 and 3). When the lever 30 is rotated to the mating completion position, a temporary holding piece 35 of the lever 30, which will be described later, is engaged with the temporary holding protrusion 14.

[0018] Next, the second connector 20 will be described. As shown in Fig. 2, the second connector 20 has a housing 21 that is substantially rectangular and cylindrical and has a bottom. Therefore, a mating recess 22 that opens forward is formed in the housing 21. The first connector 10 is mated with the mating recess 22.

[0019] The upper and lower surfaces of the fitting recess 22 are provided with cam grooves 23 corresponding to the cam protrusions 34 of the lever 30 attached to the first connector 10 described later (see Figs. 2 to 5). The cam groove 23 has a first portion and a third portion extending linearly in the front-rear direction in the front and rear regions, respectively, offset in the left-right direction, and a second portion extending linearly in the left-right direction at approximately the center in the front-rear direction connects the first portion and the third portion. That is, the cam groove 23 is formed in a so-called crank shape (see Figs. 3 to 5). When the first connector 10 is inserted into the fitting recess 22, the cam protrusions 34 enter the cam groove 23 (see Figs. 4 and 5).

[0020] A mating fulcrum portion 24 is provided on the left side of each cam groove 23 so as to be adjacent to each cam groove 23 in the left-right direction (see FIGS. 3 to 5). A cam protrusion 34 that enters the cam groove 23 engages with the mating fulcrum portion 24 when the first connector 10 is mated with the second connector 20.

[0021] A disengagement fulcrum portion 25 is provided on the right side of each cam groove 23 so as to be adjacent to each cam groove 23 in the left-right direction (see FIGS. 3 to 5). When the first connector 10 is disengaged from the second connector 20, a cam projection 34 that has entered the cam groove 23 engages with the disengagement fulcrum portion 25.

[0022] Guide grooves 26 are provided on the upper and lower surfaces of the fitting recess 22 in correspondence with the guide ribs 13 of the first connector 10 (see FIGS. 2 to 5). The guide grooves 26 extend in a substantially straight line over the entire area of ​​the fitting recess 22 in the front-rear direction (see FIGS. 3 to 5).

[0023] A locked projection 27 is provided on the right end of the housing 21 in correspondence with a locking portion 40 (particularly, a locking projection 42) of the lever 30 described later (see Figs. 3, 7 and 8). The locked projection 27 is locked with the locking projection 42 of the lever 30 (see Fig. 7).

[0024] Next, the lever 30 will be described. The lever 30 is attached to the first connector 10 so as to be rotatable between an initial position (see FIG. 3) and a mating completion position (see FIG. 5), and is rotated to mate and separate the first connector 10 with respect to the second connector 20. As shown in FIG. 2, the lever 30 is integrally formed in a substantially rectangular U-shape and has a pair of side plates 31 spaced apart in the vertical direction and an operating portion 32 that connects the pair of side plates 31 in the vertical direction at right ends of the pair of side plates 31.

[0025] The pair of side plates 31 are each provided with a shaft hole 33 that penetrates in the vertical direction in correspondence with the rotation shaft 12 of the first connector 10 (see FIGS. 2 and 3).

[0026] A cam projection 34 that projects outward in the up-down direction is provided on each outer surface (upper surface on the upper side and lower surface on the lower side) of the pair of side plates 31 in a left-right region in the left-right direction (see Figs. 2 to 5). When the first connector 10 is inserted into the fitting recess 22, the cam projection 34 enters the cam groove 23, and during the above fitting, it engages with the fitting fulcrum portion 24 as the lever 30 rotates, drawing the second connector 20 toward the first connector 10, and during the above disengagement, it engages with the disengagement fulcrum portion 25 as the lever 30 rotates, drawing the second connector 20 away from the first connector 10.

[0027] A cantilever-shaped temporary holding piece 35 extending rearward is provided on each rear end edge of the pair of side plates 31 in correspondence with the temporary holding projection 14 of the first connector 10 (see FIGS. 2 and 3).

[0028] A generally rectangular cylindrical protective section 36 extending in the front-rear direction is provided at the front end of the operating section 32 (see Figs. 6 to 11). A protruding wall section 38 protruding leftward from the right side wall section 36a so as to cover part of the opening 37 is provided at the open end of the protective section 36 (see Fig. 6). The protruding wall section 38 functions to cover the front of the push-down section 43 to protect the push-down section 43 when the first connector 10 and the second connector 20 are not yet mated (see Fig. 6).

[0029] The operation portion 32 is provided with a locking portion 40 in which a locking arm 41, a locking projection 42, and a push-down portion 43 are integrally formed (see FIGS. 6 to 8).

[0030] The locking arm 41 is formed in a cantilever shape so that the rear end of the operating portion 32 serves as the base end, and extends in the front-to-rear direction so that at least the push-down portion 43 is positioned in the internal space (cylindrical hole) of the protective portion 36 and so that the front end of the push-down portion 43 is located near the protruding wall portion 38.

[0031] The locking projection 42 is provided on the base end side (rear side) of the locking arm 41, and is locked to the locked projection 27 of the second connector 20 when the first connector 10 and the second connector 20 are in a completely mated state.

[0032] The push-down portion 43 is provided at the free end (front end) of the locking arm 41. When the first connector 10 and the second connector 20 are not yet mated, the locking arm 41 is not bent and the front of the push-down portion 43 is covered by the protruding wall portion 38 so as to be inoperable (see FIG. 6), whereas when the first connector 10 and the second connector 20 are completely mated, the locking arm 41 is bent by the locked projection 27 of the second connector 20 and the front of the push-down portion 43 is not covered so as to be operable (see FIG. 8).

[0033] The above has described the first connector 10, the second connector 20, and the lever 30 that constitute the lever-type connector 1. Next, an example of the operation of the lever-type connector 1 will be described.

[0034] First, an example of the mating operation of the lever-type connector 1 will be described. When mating the first connector 10 to the second connector 20, the operating portion 32 of the lever 30 is positioned so as to be oblique to the first connector 10, as shown in Fig. 3 (this position is the "initial position" of the lever 30). In this state, the first connector 10 is brought relatively close to the second connector 20, and the first connector 10 is inserted into the mating recess 22 of the second connector 20.

[0035] When the first connector 10 is inserted into the fitting recess 22 , the cam protrusion 34 of the lever 30 fits into the cam groove 23 of the second connector 20 , and the guide rib 13 of the first connector 10 fits into the guide groove 26 of the second connector 20 .

[0036] Then, when the first connector 10 is pushed into the mating recess 22 while rotating the lever 30 toward the mating completion position, the cam protrusion 34 that has entered the cam groove 23 engages with the mating fulcrum portion 24 of the second connector 20, and the lever 30 rotates with the cam protrusion 34 as a fulcrum. Then, due to the rotation of the lever 30, an insertion force is applied from the lever 30 to the first connector 10, and the first connector 10 is pushed in toward the rear side (i.e., the mating side).

[0037] In this state, i.e., when the first connector 10 and the second connector 20 are not yet fully mated, the front of the push-down portion 43 is still covered by the protruding wall portion 38, i.e., the push-down portion 43 is not yet exposed from the opening 37 when viewed from the front, so that it is not possible to operate the push-down portion 43 (to contact the push-down portion 43) (see Figure 6).

[0038] Then, immediately before the first connector 10 and the second connector 20 are mated, the locking projection 42 of the lever 30 rides up to the left on the locked projection 27 of the second connector 20. Thereafter, when the lever 30 is continued to rotate until it becomes substantially parallel to the first connector 10 as shown in FIG. 5 (this position is the "mating completion position" of the lever 30), the first connector 10 is mated with the mating recess 22 (see FIGS. 1 and 5), and the locking projection 42 rides over the locked projection 27 from the front to the rear, and the locking projection 42 is locked with the locked projection 27 in a state in which the locking arm 41 is deflected by the locked projection 27 (see FIG. 7). As a result, the first connector 10 and the second connector 20 are electrically connected, and mating of the first connector 10 with the second connector 20 is completed.

[0039] At the moment when the first connector 10 and the second connector 20 are completely mated, i.e., when the locking projection 42 and the locked projection 27 are completely engaged with each other, the locking arm 41 is restored to its original position and the front vicinity of the locking projection 42 on the locking arm 41 comes into contact with the locked projection 27, producing a loud locking sound. This enables the worker to perceive that the first connector 10 and the second connector 20 have been completely mated.

[0040] In the mating complete state of the first connector 10 and the second connector 20, the locking arm 41 is bent by the locked projection 27, and therefore the front of the push-down portion 43 is not covered by the protruding wall portion 38. That is, the push-down portion 43 is exposed from the opening 37 when viewed from the front, which allows the push-down portion 43 to be operated. In addition, in the mating complete state, the position of the locking projection 42 is located to the left of its position in the mating incomplete state.

[0041] Next, a description will be given of an example of a disengagement operation of the lever-type connector 1. As described above, when the first connector 10 and the second connector 20 are in a completely mated state, the locking projection 42 of the lever 30 is locked to the locked projection 27 of the second connector 20, and the lever 30 cannot be rotated. Therefore, in order to disengage the first connector 10 from the second connector 20, it is necessary to release the lock between the locking projection 42 and the locked projection 27.

[0042] In order to release the engagement between the locking projection 42 and the locked projection 27, a finger F is inserted from the opening 37 of the lever 30 as shown in Fig. 8. Then, the finger F inserted from the opening 37 is placed on the push-down portion 43 of the lever 30, and when the push-down portion 43 is pressed down, the locking arm 41 of the lever 30 is bent and deformed toward the left (see Fig. 8).

[0043] In this state, when the lever 30 is rotated toward the initial position, the cam projection 34 engages with the disengagement fulcrum portion 25, and the lever 30 rotates with the cam projection 34 as a fulcrum. Then, due to the rotation of the lever 30, a pulling force is applied from the lever 30 to the first connector 10, and the first connector 10 is pulled away to the front side (i.e., the disengagement side).

[0044] When the turning operation is continued until the lever 30 reaches the initial position as shown in FIG. 3, the first connector 10 is pulled out of the mating recess 22, and the removal of the first connector 10 from the second connector 20 is completed.

[0045] An example of the mating operation and the disengagement operation of the lever-type connector 1 have been described above.

[0046] As described above, according to this embodiment, in the incomplete mating state, the front of the push-down portion 43 of the lever 30 is covered by the protruding wall portion 38 of the lever 30, making it impossible to operate the lever 30, and in the complete mating state, the front of the push-down portion 43 is not covered by the protruding wall portion 38, making it possible to operate the lever 30. This makes it possible to prevent the protective portion 36 from becoming large, i.e., to increase the size of the lever-type connector 1, and further to prevent the lever 30 from coming into contact with the locking portion 40 when the connectors are mated with each other, allowing the operator to easily perceive the locking sound at the moment when the first connector 10 and the second connector 20 are mated, i.e., at the moment when the locking projection 42 and the locked projection 27 are locked together.

[0047] Furthermore, according to this embodiment, the position of the locking protrusion 42 of the lever 30 in the incomplete mating state is located to the right of the position in the complete mating state in the lateral direction, which is the bending direction, so that the amount of bending deformation of the locking arm 41 is large immediately before the first connector 10 and the second connector 20 are mated, that is, when the locking protrusion 42 rides up on the locked protrusion 27 of the second connector 20. As a result, in this embodiment, the restoring force of the locking arm 41 when the locking protrusion 42 rides up on the locked protrusion 27 is large compared to the case not configured as described above, and the speed of the locking arm 41 at the time of restoration displacement is proportionally large. As a result, according to this embodiment, a good locking sound can be obtained at the moment when the locking protrusion 42 and the locked protrusion 27 are completely engaged with each other.

[0048] Furthermore, according to this embodiment, the front end of the push-down portion 43 is positioned near the protruding wall portion 38, thereby more appropriately preventing contact with the push-down portion 43 when the first connector 10 and the second connector 20 are mated and in the above-mentioned incomplete mating state.

[0049] <Other forms> The present invention is not limited to the above-described embodiment, and can be appropriately modified, improved, etc. In addition, the material, shape, size, number, arrangement location, etc. of each component in the above-described embodiment are arbitrary as long as the present invention can be achieved, and are not limited.

[0050] Here, the features of the above-described embodiments of the lever-type connector according to the present invention will be briefly summarized and listed in the following [1] to [3].

[0051] [1] A lever-type connector (1) comprising: a first connector (10); a second connector (20) that can be mated with and separated from the first connector (10); and a lever (30) that is attached to the first connector (10) so as to be rotatable between an initial position and a mating completion position, and that mates or disengages the first connector (10) and the second connector (20) by a rotational operation, The lever (30) is A locking arm (41) extending in a predetermined direction (front-rear direction) and capable of being flexibly deformed in a direction intersecting the predetermined direction (left-right direction); a locking projection (42) provided on the locking arm (41) and releasably locked to a locked projection (27) of the second connector (20) at the mating completion position; a push-down portion (43) provided at a free end of the locking arm (41); a protective portion (36) formed in a substantially cylindrical shape extending in the predetermined direction, with at least the push-down portion (43) disposed in an internal space thereof; The locking projection (42) is locked to the locked projection (27) in a state in which the locking arm (41) is deflected by the locked projection (27), A protruding wall portion (38) is provided at an opening end on the free end side (front side) of the protective portion (36) so as to protrude toward one end side (left side) in the intersecting direction to close a part of the opening (37), The push-down portion (43) is When the first connector (10) and the second connector (20) are in an incomplete mating state, the free end side (front side) is covered in the predetermined direction by the protruding wall portion (38) so as to be inoperable, and when the first connector (10) and the second connector (20) are in a complete mating state, the free end side (front side) is not covered in the predetermined direction so as to be operable. Lever connector (1).

[0052] According to the configuration [1] above, in the incomplete mating state, the free end side of the push-down portion of the lever is covered by the protruding wall portion of the lever, making it impossible to operate the lever, and in the complete mating state, the free end side of the push-down portion is not covered by the protruding wall portion, making it possible to operate the lever. This makes it possible to prevent the lever from coming into contact with the locking portion when the connectors are mated without making the protective portion larger, i.e., without making the lever-type connector larger, and allows the operator to clearly perceive the locking sound at the moment when the first connector and the second connector are mated, i.e., at the moment when the locking protrusion and the locked protrusion are locked.

[0053] [2] The lever-type connector (1) described in [1] above, The locking projection (42) is The position in the incomplete mating state is located on the other end side (right side) in the intersecting direction relative to the position in the complete mating state. Lever connector (1).

[0054] According to the configuration [2], the position of the locking protrusion in the incomplete mating state is located on the other end side in the cross direction than the position in the complete mating state, so that the amount of deflection deformation of the locking arm is large just before the first connector and the second connector are mated, that is, when the locking protrusion rides up on the locked protrusion of the second connector. As a result, the above configuration has a larger restoring force of the locking arm when the locking protrusion rides up on the locked protrusion compared to a case not configured as described above, and the speed of the locking arm's restoration displacement is proportionally larger. As a result, according to the above configuration, a good locking sound can be obtained at the moment when the locking protrusion and the locked protrusion are completely engaged with each other.

[0055] [3] The lever-type connector (1) according to the above [1] or [2], The tip (tip) of the push-down portion (43) is disposed in the vicinity of the protruding wall portion (38). Lever connector (1).

[0056] According to the configuration [3] above, the tip of the push-down portion is positioned near the protruding wall portion, thereby more appropriately preventing contact with the push-down portion when the first connector and the second connector are mated but in the above-mentioned incomplete mating state. [Explanation of symbols]

[0057] 1 Lever Type Connector 10 First Connector 12 Rotating shaft 20 Second Connector 22 Fitting recess 23 Cam groove 24 Fitting support part 25 Release fulcrum 27 Locked protrusion 30 Lever 32 Operation section 33 Shaft hole 34 Cam protrusion 36 Protection Department 37 Aperture 38 Projecting wall part 40 Locking part 41 Locking arm 42 locking projection 43 pressing portion

Claims

1. A lever-type connector comprising: a first connector; a second connector that can be mated with and separated from the first connector; and a lever that is attached to the first connector so as to be rotatable between an initial position and a mating completion position, and that mates or disengages the first connector and the second connector by a rotational operation, The lever is A locking arm extending in a predetermined direction and capable of bending and deforming in a direction intersecting the predetermined direction; a locking projection provided on the locking arm and releasably locked to a locked projection of the second connector at the mating completion position; A push-down portion provided at a free end of the locking arm; a protection section formed in a substantially cylindrical shape extending in the predetermined direction and having an internal space in which at least the depression section is disposed, The locking projection is locked to the locked projection in a state in which the locking arm is deflected by the locked projection, a protruding wall portion protruding toward one end in the intersecting direction so as to close a part of the opening at the free end side of the protective portion; The depression portion is When the first connector and the second connector are in an incomplete mating state, the free end side is covered in the predetermined direction by the protruding wall portion so as to be inoperable, and when the first connector and the second connector are in a complete mating state, the free end side is not covered in the predetermined direction so as to be operable. Lever type connector.

2. 2. The lever-type connector according to claim 1, The locking projection is the position in the incomplete mating state is located on the other end side in the intersecting direction than the position in the complete mating state; Lever type connector.

3. 3. The lever-type connector according to claim 1, a tip end of the depression portion is disposed adjacent to the protruding wall portion; Lever type connector.

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