JP2956532B2 - Lever connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lever type connector in which housings are fitted to each other by a lever.

[0002]

2. Description of the Related Art The structure of a lever-type connector in which male and female housings are fitted by a lever is as follows. "Ko"
A pair of bearing holes formed in both legs of the lever having a letter shape are fitted to a pair of support shafts formed in one of the housings, and cam grooves formed in both legs are fitted to protrusions formed in the other housing. When the lever is rotated in this state, both housings are easily pulled and fitted.

Normally, when male and female housings are fitted together, fitting resistance is reduced due to frictional force caused by elastic contact between the male terminal fittings and the female terminal fittings mounted on both housings. The mating resistance is increased especially in a connector having a large number of poles. However, in the lever-type connector, due to the "lever action", a large fitting force is generated even with a small operating force, so that the fitting operation can be easily performed.

[0004]

In the lever type connector, the mounting posture of the lever with respect to the housing is predetermined in view of the engagement between the cam groove and the projection. For this reason, for example, when the lever-type connector is mounted in a narrow space and its mounting posture is restricted, there is a possibility that a sufficient empty space may not be secured around the region where the lever rotates. . In such a case, the operation of the lever becomes difficult, and the workability deteriorates.

The present invention has been made in view of the above circumstances, and has as its object to ensure high operability of the lever even when the mounting environment is restricted.

[0006]

Means for Solving the Problems As means for solving the above-mentioned problems, the invention of claim 1 comprises a pair of housings into which terminal fittings that can be fitted with each other are inserted, and a pair of housings formed on one of the housings. A support shaft, and a lever having a pair of U-shaped bearing holes formed in both leg portions rotatably fitted to the support shaft, the lever being engaged with the other housing to rotate. Thus, in the lever-type connector in which the terminal fittings are fitted together while pulling the pair of housings together, the lever can be detached from the one housing, and the fitting between the pair of support shafts and the pair of bearing holes is enabled. It is characterized in that the lever is selectively mounted to the housing in two different mounting states in which the combination is reversed.

According to a second aspect of the present invention, in the first aspect of the invention, the support shaft and the bearing hole are provided with retaining means for restricting the leg portion from coming off the support shaft by engaging with each other in the axial direction. The retaining means provided on the support shaft side is characterized in that it is configured to be symmetrical with respect to an axis parallel to the fitting direction of the terminal fitting.

According to a third aspect of the present invention, in the second aspect of the invention, the enlarged diameter portion and the notch portion are symmetrical with respect to the axis of the support shaft.
The shape of the one enlarged portion and the one notched portion that are arranged in a pair and are provided one by one and that can be aligned with each other are the shapes of the other enlarged portion and the other notched portion located on the opposite side to these. It is characterized by having a different configuration.

The invention of claim 4 is the invention of claim 2 or claim 3.
In the invention of the above, the notch portion is arranged at a position where the lever can be fitted with the enlarged diameter portion in a state where the lever takes a posture outside the range of rotation during the fitting operation of the terminal fitting. Has features.

[0010] The invention of claim 5 is the invention of claims 1 to 4.
In any one of the inventions described above, the support shaft is characterized in that it is arranged at a position that allows moments in both the forward and reverse directions generated around the support shaft to be balanced by the fitting resistance between the terminal fittings. .

[0011]

According to the first aspect of the present invention, one of two mounting methods in which the combination of the pair of support shafts and the pair of bearing holes is reversed depending on the mounting environment. Allows the lever to be mounted on the housing.

According to the second aspect of the present invention, even when a force in the direction of detaching from the support shaft acts on the leg portion of the lever during the fitting operation of the pair of housings, the removal provided in the support shaft and the bearing hole. The engagement of the stopper in the axial direction restricts the leg from coming off the support shaft. In addition, since the enlarged diameter portion is symmetrical with respect to the axis in the fitting direction, the posture of the lever when mounted on the housing in the two mounting methods in which the combination of the fitting of the support shaft and the bearing hole is reversed is also described above. It becomes line symmetric with respect to the axis in the fitting direction.

According to the third aspect of the present invention, the mounting and dismounting of the lever is performed by fitting the bearing hole and the support shaft in a state in which the notch is aligned with the enlarged diameter portion. Even if a force in the direction of disengagement from the support shaft acts on the leg of the lever during the fitting operation, the enlarged diameter portion is engaged with the outer surface of the leg, and the leg may be disengaged from the support shaft. There is no. Since the enlarged diameter portion is provided at two positions symmetrical with respect to the axis of the support shaft, the engagement of the enlarged diameter portion with the leg is stabilized and the strength is improved. In addition, since the enlarged diameter portions and the cutout portions located on the opposite sides are different in shape from each other, the enlarged diameter portion that can be fitted in each of the two mounting states that the lever can take is possible. The combination of and the notch is determined in one way. Therefore, the mounting posture of the lever in the two mounting methods is correctly symmetrical with respect to the axis in the fitting direction.

According to the fourth aspect of the present invention, the enlarged portion and the notch do not align with each other during the fitting operation by rotating the lever. The state of engagement with the outer surface of the leg is maintained.

According to the fifth aspect of the present invention, even if the lever is mounted in any one of two mounting methods in which the combination of the pair of support shafts and the pair of bearing holes is reversed. Since the support shafts are arranged so that the moments in the forward and reverse directions around the support shaft generated by the fitting resistance between the terminal fittings are balanced, twisting is caused by the relative inclination of the housing due to the fitting resistance. It does not occur.

[0016]

According to the first aspect of the present invention, the method of mounting the lever can be selected so that the lever can be easily operated according to the mounting environment, so that the workability of the lever operation can be improved.

According to the second aspect of the present invention, the detachment of the leg from the support shaft during the fitting operation is restricted by the retaining means provided on the support shaft and the bearing hole. A rotation operation can be performed. Also, since the retaining means on the support shaft side is line-symmetric with respect to the axis in the fitting direction,
In any one of the two mounting methods in which the combination of the fitting between the pair of support shafts and the pair of bearing holes is reversed, the fitting between the support shaft and the bearing holes does not interfere.

According to the third aspect of the present invention, the enlarged diameter portion formed on the support shaft prevents the leg from being detached from the support shaft during the fitting operation. It is possible to perform a reliable lever rotation operation. Also,
Since the enlarged diameter portion is provided at two positions symmetrical with respect to the axis of the support shaft, it is possible to stably and reliably prevent the leg portion from coming off from the support shaft. Furthermore, by making the shapes of the enlarged diameter portions located on opposite sides different from each other, the mounting posture of the lever in the two mounting methods is made to be line-symmetric with respect to the axis in the fitting direction. Also, the lever is prevented from being improperly mounted.

According to the fourth aspect of the present invention, since the enlarged diameter portion and the notch portion do not align with each other during the rotation operation of the lever, the leg portion is detached from the support shaft with the fitting operation. With respect to the acting force, the detachment can be reliably prevented.

According to the fifth aspect of the present invention, the terminal fittings can be connected to each other in any one of two mounting methods in which the combination of the pair of support shafts and the pair of bearing holes is reversed. Since there is no possibility that the relative posture between the housings may be deviated due to the fitting resistance, the lever can be easily operated.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. The lever-type connector of this embodiment has a male housing (not shown), a female housing 10 that can be fitted to the male housing, and a fitting supported by the female housing 10 to the male housing. For the operation.

The female housing 10 has a plurality of cavities 11 which are open at the front and back thereof and are aligned in a predetermined arrangement.
It has. Female terminal fittings (not shown) are mounted in these cavities 11, and electric wires (not shown) connected to the respective female terminal fittings are externally connected to a rear surface (hereinafter referred to as an electric wire extending surface) 12 of the female housing 10. These wires extend from the harness cover 2 attached to the wire extension surface 12.
The wire is bent in the inside of the wire and is pulled out from the wire outlet 21 along the wire extending surface 12 in the longitudinal direction and wired. The female housing 10 has a pair of guides 13 serving as guides for attaching and detaching the harness cover 20.
2 is formed in a longitudinal direction on the harness cover 2.
A pair of locking portions 14, 14 for holding 0 at a regular mounting position (hereinafter, referred to as a lock position) are formed at a central position in the longitudinal direction of the guide 13.

Note that one of the pair of locking portions 14, 14 is continuous with a portion protruding from the outer surface of the female housing 10, and this protruding portion 15 is connected to the male housing. It has a positioning function for preventing fitting in an upside-down orientation at the time of fitting.

The harness cover 20 has a wire extension surface 1
The surface corresponding to 2 has a large opening over the whole, and an electric wire outlet 21 continuously opening at this opening portion is formed at one end in the longitudinal direction. A pair of fitting grooves 22, 22 capable of fitting with the guide 13 are formed on the side edge of the opening corresponding to the wire extending surface 12. Such a harness cover 2
0 is attached to the female housing 10 by fitting the fitting groove 22 into the guide 13 from the wire outlet 21 side and sliding along the wire extending surface 12, and sliding in the opposite direction to the above. It is designed to be removed from the housing 10. Further, since the guide 13 is formed symmetrically in the longitudinal direction, the harness cover 20 can be selectively mounted in two postures in which the wire outlets 21 face in opposite directions.

On both outer surfaces of the harness cover 20, a pair of elastic bending portions 23, 23 having a bridge shape and having two holding projections 24, 24 arranged in the longitudinal direction are formed. When the harness cover 20 is in the locked position,
The harness cover 20 is held at the lock position by engaging one of the holding projections 24 with the locking portion 14, and the harness cover 20 slides slightly in the direction from the lock position to be at the unlock position. The harness cover 20 is held at the unlocked position by engaging the two holding projections 24 with the locking portion 14 so as to sandwich the same. The holding of the harness cover 20 at the lock position and the unlock position is released by elastically deforming the elastic bending portion 23. When the harness cover 20 is mounted on the female housing 10, the holding protrusions 24 are configured to escape while elastically deforming the elastic bending by engaging the slopes of the holding protrusions 24 with the locking portions 14. 24 does not hinder the mounting of the harness cover 20.

On both outer surfaces of the harness cover 20, a pair of lock claws 25 engageable with the engagement claws 37 of the lever 30 are provided.
25 are formed. This pair of lock claws 25, 25
Are arranged corresponding to a central position between a pair of support shafts 16, which will be described later, and are formed symmetrically with respect to a line in a fitting direction orthogonal to the axis of the support shaft 16. Therefore, the engaging claw 37 can be engaged with the lock claw 25 even when the harness cover 20 takes any one of the two postures in which the wire outlet 21 is turned in the opposite direction.

A pair of support shafts 1 for supporting the lever 30 are provided on both end surfaces in the longitudinal direction of the female housing 10.
The projections 6 and 16 are formed so as to be aligned with the axis. The axis of the support shaft 16 is aligned with the male housing 10 and the female housing 10.
And the arrangement of the support shaft 16 on both end surfaces of the female housing 10 is set as follows.

When the male terminal fitting and the female terminal fitting are fitted, an elastic contact piece (not shown) provided inside the female terminal fitting is provided.
The tabs (not shown) of the male terminal fittings are pinched by the elasticity of the terminal fittings, and the contact pressure generates fitting resistance for each terminal fitting, and the fitting resistance causes a moment about the support shaft 16 to be male. This will occur between the housing and the female housing 10. Then, this moment is determined by the position at which the tab is pressed in the female terminal fitting, the arrangement of the female terminal fitting, and the strength of the pressing force of the elastic contact piece when using different types of terminal fittings. It depends on various conditions. Therefore, in the present embodiment, in consideration of these various conditions,
Terminal fittings are distributed on both sides of the axis of the support shaft 16,
In addition, the position of the support shaft 16 is relative to the arrangement of the terminal fittings so that the moment generated by the fitting of the terminal fitting arranged on one side and the moment by the fitting of the terminal fitting arranged on the other side are balanced. Is set to As described above, since the position of the support shaft 16 is determined so that the moment is balanced, when the male housing and the female housing 10 are fitted, no moment about the support shaft 16 is generated between the two housings. Are fitted while moving parallel to each other while facing each other. In FIG. 3, the height of the axis of the support shaft 16 is substantially the same as the thickness from the uppermost cavity 11 to the upper surface of the female housing 10 and the thickness from the lowermost cavity 10 to the lower end surface of the female housing 10. In this case, the height is slightly higher than the center of the height of the female housing 10 that does not include the protrusion 15. Therefore, in the present embodiment, utilizing the fact that the axis of the support shaft 16 and the center of the height of the female housing 10 are displaced, the protrusion 15 for preventing reverse fitting with the male housing is formed on the upper surface of the female housing 10. The center of the height of the female housing 10 including the protruding portion 15 and the height of the axis of the support shaft 16 are set to match.

Each of the protruding ends of the support shafts 16 has a pair of enlarged diameter portions (retaining means, which is a constituent feature of the first aspect).
17A and 17B are formed. This pair of enlarged diameter portions 1
7A and 17B are radially enlarged in opposite directions in the radial direction at an interval of 180 ° from each other, and the radially enlarged direction is a fitting direction of the two housings. These enlarged diameter portions 17A and 17B have a shape symmetrical with respect to a line in the fitting direction passing through the axis of the support shaft 16. Further, the pair of enlarged diameter portions 17A and 17B have different shapes. That is, the protrusion 18A is formed on the outer peripheral edge of the one enlarged diameter portion 17A.
Is formed, a concave portion 18B is formed on the outer peripheral edge of the other enlarged diameter portion 17B. Such enlarged diameter part 1
7A and 17B engage with the outer surfaces of the legs 32 of the lever 30 and thus function to restrict the lever 30 from coming off the support shaft 16.

The lever 30 is formed by connecting a pair of plate-like legs 32, 32 to both ends of an operating portion 31 extending along the longitudinal direction of the female housing 10, and has a generally "U" shape. A pair of bearing holes 33, 33 penetrating the leg portions 32, 32 so as to open on both inner and outer surfaces thereof, are formed so that their axes are aligned. The bearing hole 33 is rotatably fitted to the support shaft 16, so that the lever 30 is supported by the female housing 10.

The lever 30 has a disengaged posture (see FIG. 5) in which the operating portion 31 is positioned on the front side of the female housing 10 and the operating portion 31 is inclined at an angle of approximately 90 ° from the disengaged posture. It is rotatable between a fitting posture (refer to FIG. 6) positioned on the wire extension surface 12 side. With the lever 30 in the disengaged posture, the two legs 32, 32
When the cam groove 36 on the inner side of the male housing is engaged with a projection (not shown) of the male housing, and the lever 30 is rotated from this state, the male housing is pulled relatively to the female housing 10 and the lever 30 is pulled. Is reached, the fitting of both housings is completed. When the lever 30 is rotated in the disengaged direction from the fitted state,
The engagement between the cam groove 36 and the projection causes the male housing to move relatively to and separate from the female housing 10 and to be separated therefrom.

An engaging claw 37 is formed at a longitudinal center position of the operating portion 31 of the lever 30 so as to be able to engage with the lock claw 25 of the harness cover 20 in the fitting posture of the lever 30. When the lever 30 reaches the fitting posture, the engaging claw 37 and the one locking claw 25 slightly engage with each other due to a slight elastic deformation, so that the lever 30 is locked so that it cannot be displaced in the disengaging direction. Become so. Also,
When the harness cover 20 is moved to the unlock position, the lock claw 25 is disengaged from the engagement claw 37 and displaced into the side escape groove 38. In this state, the lever 30 is unlocked and the fitting is released. Rotation in the direction is allowed.

In the bearing hole 33, a pair of cutout portions (removal preventing means which is a constituent feature of the first aspect) 34A, 34 which can be fitted with the pair of enlarged diameter portions 17A, 17B of the support shaft 16.
B is formed. This pair of notches 34A, 34B
A recess 35A is formed on the periphery of the opening of one of the notches 34A.
Is formed, a convex portion 35B is formed on the periphery of the opening of the other cutout portion 34B, and the enlarged diameter where the cutout portion 34A in which the concave portion 35A is formed and the convex portion 18A are formed. At the same time that the projections 35B
The notched portion 34B formed with the concave portion 18B is fitted with the enlarged diameter portion 17B formed with the concave portion 18B.

Further, as described above, the pair of enlarged diameter portions 17A, 1
In a state where 7B and the pair of notches 34A and 34B are aligned with each other, as shown in FIG. 7, the lever 30 takes a posture such that the operating portion 31 protrudes largely toward the electric wire extending surface 12 side. This posture is a state in which the lever 30 is rotated by an angle of approximately 135 ° in the unmating direction from the fitting posture shown in FIG. 5, that is, the range in which the lever 30 rotates when performing the fitting operation of the two housings. It is in a state where it has been rotated more than a rotation range of 90 ° from.

Therefore, the lever 30 is moved to the position shown in FIG.
Are turned to cut out portions 34A, 34B and enlarged diameter portions 17A, 17A.
B, the lever 30 is supported on the support shaft 16.
It can be attached to and detached from. After the lever 30 is once mounted, the enlarged diameter portions 17A and 17B and the notch portion 3 are provided as long as the normal rotation operation of the lever 30 is performed.
4A and 34B do not match.

The enlarged diameter portions 17A, 17B of the support shaft 16
Are symmetrical with respect to the axis in the fitting direction, so that the two support shafts 16, 16 and the two bearing holes 33, 33 are fitted in two different postures (see FIG. 5). (The posture shown in FIG. 11 and the posture shown in FIG. 11). Moreover, in these two mounting positions,
The lever 30 draws a rotational trajectory that is symmetrical with respect to the axis in the fitting direction. Further, two enlarged diameter portions 17 forming a pair are provided.
Since the shapes of A and 17B are different from each other, it is restricted that the operation portion 31 of the lever 30 is mounted in an incorrect posture such as being located on the right side of the female housing 10 in FIG.

Further, on the outer surface of the leg 32, a receiving recess 39 which is concentric with the bearing hole 33 is formed.
The notches 34A and 34B are formed in the accommodation recess 39. The receiving recess 39 is provided with the enlarged diameter portions 17A and 17A.
B, which are recessed by the same dimension as the thickness of the support shaft 16, and in a state where the bearing hole 33 is fitted in the support shaft 16, the enlarged diameter portions 17A, 17
B does not protrude beyond the outer surface of the leg 32.

Next, the operation of this embodiment will be described.
When attaching the lever 30 to the female housing 10, the harness cover 20 is detached from the female housing 10. With the lever 30 in the position shown in FIG.
When the enlarged diameter portions 17A and 17B are aligned with the cutout portions 34A and 34B as shown in FIG. 10 in a state where the lever 2 is slightly elastically spread outward, the lever 30 can be mounted on the support shafts 16 and 16. . Thereafter, the lever 30 is rotated until it takes the disengagement posture shown in FIG.
0 is mounted on the female housing 10. Thus, the assembly of the lever 30 and the harness cover 20 to the female housing 10 is completed.

From this state, the male housing and the female housing 10 are fitted by rotating the lever 30. Then, when the lever 30 reaches the fitting posture, the locking claw 25 and the engaging claw 37 are engaged to lock the lever 30, whereby the male housing and the female housing 10 are locked in the fitted state.

In this fitting operation, the lever 3 is moved to a position where the moment generated together with the fitting operation is balanced.
Since 0 is arranged, no twisting occurs between the male housing and the female housing 10 and a smooth fitting operation can be performed.

Further, a pressing force in the direction of expanding outward acts on the leg 32 with the fitting.
Since the legs A and 17B are engaged with the outer surfaces of the legs 32, 32, the legs 32 are prevented from being displaced outwardly with respect to the support shaft 16. Moreover, the enlarged diameter portion 1
Since 7A and 17B are disposed at two positions at an angle of 180 ° about the axis of the support shaft 16, the function of preventing the leg portion 32 from being pulled out is stably exhibited with high strength.

When the two housings are disengaged from each other, the elastic projection 23 of the harness cover 20 is elastically deformed by being pinched by a finger. Is released, the harness cover 20 is slid to the lock release position. Then, the lock claw 25 is disengaged from the engagement claw 37, and the lock of the lever 30 is released.

Thereafter, the male housing and the female housing 10 are relatively separated by operating the lever 30 in the unmating direction. At the time of this mating release operation, similarly to the mating operation, the moment around the support shaft 16 due to the frictional resistance between the male terminal fitting and the female terminal fitting is balanced. No prying will occur. Therefore, the disengagement operation can be performed smoothly.

When changing the mounting posture of the lever 30, the harness cover 20 is first removed from the female housing 10, and then the lever 30 is removed. At this time, the lever 30 is rotated to the posture shown in FIG.
The bearing hole 33 is detached from the support shaft 16 by aligning 34B with the enlarged diameter portions 17A and 17B and elastically deforming the two legs 32 and 32 outward from this state. The lever 30 thus removed is changed in direction to the posture shown in FIG. 11, and the lever 30 is mounted in the same procedure as described above. Then, after the lever 30 is mounted, the harness cover 20 may be mounted.

As described above, according to the lever-type connector of this embodiment, the lever 30 can be mounted on the female housing 10 in two different postures, so that the mounting method of the lever 30 can be selected according to the mounting environment. This makes it possible to easily operate the lever 30 even when, for example, the lever-type connector is mounted in a narrow space.

In addition, since the position of the support shaft 16 is determined in consideration of the moment around the support shaft 16 caused by the fitting resistance caused by the fitting operation of the two housings, the lever 30 is provided in one of two positions. In any case, no twisting occurs between the two housings, and the operation of the lever 30 can be performed smoothly.

In this embodiment, the position of the axis of the support shaft 16 set so that the moment due to the mating resistance is balanced is equal to the height of the female housing 10 including the protrusion 15 for preventing reverse insertion with the male housing. Therefore, even when the lever 30 is mounted in any one of the two postures, the operating portion 31 of the lever 30 is connected to the female housing 1.
This eliminates the need to leave a useless gap between the zero point and the zero point. Therefore, the size of the entire female housing is reduced.

<Other Embodiments> The present invention is not limited to the embodiments described above with reference to the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition, various changes can be made without departing from the scope of the invention. (1) In the above embodiment, the lever 30 is connected to the harness cover 2
Although the case where the lever is turned sideways without straddling zero has been described, the present invention can also be applied to a case where the lever is turned so as to straddle the harness cover. .

(2) In the above embodiment, the case where the two enlarged diameter portions 17A and 17B forming a pair have different shapes has been described. However, in the case where there is no possibility that the lever 30 is mounted in an incorrect direction. Alternatively, the two enlarged diameter portions forming a pair may have the same shape.

(3) In the above embodiment, one support shaft 16
Although the case where two enlarged diameter portions 17A and 17B are formed has been described above, according to the present invention, only one enlarged diameter portion may be formed.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a lever and a female housing according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which a lever is mounted on the female housing.

FIG. 3 is a front view showing a state where a lever is mounted on the female housing.

FIG. 4 is a plan view of the female housing with a lever removed.

FIG. 5 is a partially cutaway side view in a state where the lever is in a disengaged posture.

FIG. 6 is a partially cutaway side view in a state where the lever is in a fitting posture.

FIG. 7 is a side view showing a posture when the lever is mounted on the female housing.

FIG. 8 is a partially enlarged side view showing a posture of a support shaft and a bearing hole in a state where a lever is in a disengaged posture.

FIG. 9 is a partially enlarged side view showing a posture of a support shaft and a bearing hole in a state where a lever is in a fitting posture.

FIG. 10 is a partially enlarged side view showing a posture of a support shaft and a bearing hole when the lever is mounted on the female housing.

FIG. 11 is a partially cutaway side view showing a state where the lever is mounted in a posture opposite to that of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Female housing 30 ... Lever 32 ... Leg part 16 ... Support shaft 33 ... Bearing hole 17A, 17B ... Diameter-expanded part (prevention means) 34A, 34B ... Notch part (prevention means)

Claims (5)

(57) [Claims] 1. A pair of housings into which terminal fittings that can be fitted to each other are inserted, a pair of support shafts formed in one of the housings, and a pair of bearing holes formed in U-shape and formed in both legs. A lever rotatably fitted to the support shaft. The lever is engaged with the other housing and rotated to draw the pair of housings together and fit the terminal fittings together. In the lever-type connector described above, the lever can be detached from the one housing, and in two mounting states where the combination of the pair of support shafts and the pair of bearing holes is reversed. A lever-type connector, wherein the lever can be selectively mounted on the housing. 2. A retainer for preventing the leg from coming off the support shaft by engaging the support shaft and the bearing hole with each other in the axial direction thereof, wherein the retainer is provided on the support shaft side. The lever-type connector according to claim 1, wherein the connector has a shape symmetrical with respect to an axis parallel to a fitting direction of the terminal fitting. 3. The retaining means on the support shaft side is constituted by an enlarged portion radially protruding from the outer periphery of the support shaft, and the retaining means on the bearing hole extends the inner circumference of the bearing hole. The enlarged diameter portion and the notched portion are arranged at two positions symmetrical with respect to the axis of the support shaft, and are provided in pairs, and can be aligned with each other. 3. The shape of one of the enlarged diameter portions and the one cutout portion is different from the shape of the other enlarged diameter portion and the other cutout portion located on the opposite side. The lever type connector according to 1. 4. The notch portion is arranged at a position where the notch portion can be fitted with the enlarged diameter portion in a state where the lever takes a posture outside a range in which the lever rotates during the fitting operation of the terminal fitting. The lever-type connector according to claim 2 or 3, wherein 5. The support shaft according to claim 1, wherein the support shaft is disposed at a position where the moment in the forward and reverse directions generated around the support shaft by the fitting resistance between the terminal fittings can be balanced. Item 5. A lever-type connector according to any one of Items 4.