JP2003223958A - Lever connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely assemble an electric wire cover to a housing while securing the strength of an open prevention wall. <P>SOLUTION: After the electric wire cover 30 is abutted on the rear face 10R of a housing 10 almost in the orthogonal direction, it slides in parallel with the rear face while making ribs 17F, 17R fit with grooves 32F, 32R. Because the electric wire cover 30 was abutted almost in the orthogonal direction to the rear face 10R of the housing 10 at the initiation of assembling, it is only necessary to open a gap between the housing 10 and opening prevention walls 14F, 14R to be opened only to an electric wire cover 30 side, a forming a region of support parts 16a to 16c of the opening prevention walls 14F, 14R are widely secured, and the strength of the open prevention walls 14F, 14R is secured. In a state that the assembly is completed, the disengagement of the electric wire cover 30 from the housing 10 is surely regulated by the uneven engagement of the ribs 17F, 17R and the grooves 32F, 32R. <P>COPYRIGHT: (C)2003,JPO

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 having a wire cover.

[0002]

2. Description of the Related Art Conventionally, as a lever type connector having an electric wire cover, there is one disclosed in Japanese Patent Laid-Open No. 2000-331747. This is to insert the terminal fitting into the housing and then attach the wire cover to which the lever is assembled in advance to the back surface of the housing, that is, the surface from which the wire is led out. Assembling of the electric wire cover with respect to the housing is performed by sliding the electric wire cover in parallel with the back surface of the housing by fitting the rib and the groove. The assembled electric wire cover is restricted from being detached from the housing by the engagement between the rib and the groove.

[0003]

Generally, in a lever type connector, when the lever is rotated while the cam groove formed in the arm portion of the lever and the cam pin of the mating connector are engaged, The cam pin strongly presses the inner wall of the cam groove due to the fitting resistance, and as a result, a force in the opening direction acts on the arm portion of the lever. Therefore, when the rigidity of the arm portion is low, an opening prevention wall having a shape corresponding to the peripheral portion of the arm portion is formed in the housing in order to prevent the lever from expanding and deforming. The opening prevention wall is supported by the housing by the support portion.

When the electric wire cover in which the lever is assembled in advance as described above is assembled to the housing having the opening prevention wall as described above, the arm portion of the lever is connected to the housing side from the electric wire cover. Since the part projecting inward enters the gap between the outer side surface of the housing and the inner side surface of the opening prevention wall with the assembling, the following problems may occur. That is, in the structure for assembling the wire cover with respect to the housing described in the prior art, that is, the structure for sliding the wire cover in parallel with the back surface of the housing, the wire cover is locked in the assembled state by the engagement of the unevenness due to the rib and the groove. Therefore, the lock function is highly reliable. However, it is not enough to open the gap between the housing and the anti-opening wall toward the wire cover side. To allow the arm part to move along with the slide of the wire cover during assembly, face the wire cover toward the wire cover. The lateral areas must also be open. Then, the formation range of the support portion for supporting the opening prevention wall on the outer side surface of the housing becomes small, and thus the strength of the opening prevention wall may not be sufficiently secured.

As a means for ensuring the strength of the opening prevention wall, it is considered that the electric wire cover is assembled in a direction substantially orthogonal to the back surface of the housing. By doing so, it is sufficient to open the gap between the housing and the opening prevention wall only to the side of the electric wire cover, so that it is possible to secure a wide area for forming the support portion, and thus to secure the strength of the opening prevention wall. . However, in the case of a structure in which the wire cover is assembled in a direction substantially orthogonal to the back surface of the housing, an elastic lock structure using an elastically bendable lock arm must be adopted as a means for locking the wire cover in the assembled state. Absent. However, in such an elastic locking means, when the force for separating the wire cover from the housing acts strongly, the lock arm may elastically bend and the lock may be released.

The present invention was devised in view of the above circumstances, and an object thereof is to securely assemble the wire cover to the housing while ensuring the strength of the opening prevention wall.

[0007]

According to a first aspect of the present invention, there is provided a housing in which an electric wire is led out from a rear surface, an electric wire cover assembled to the rear surface of the housing so as to cover the electric wire, and a pair from both ends of the operating portion. Extend the arm part of
Before the electric wire cover is assembled to the housing, a lever rotatably supported in advance on the electric wire cover, an opening prevention wall formed along the outer surface of the housing, and an outer surface of the housing. The arm portion is inserted into the gap between the housing and the opening prevention wall in association with the assembly of the support portion that supports the opening prevention wall and the electric wire cover that faces the housing, and the electric wire cover is properly assembled. In the state where the opening of the arm portion is restricted by the opening prevention wall in the opened state, one of the housing and the electric wire cover is provided with a rib parallel to the rear surface of the housing, On the other hand, a groove that can be fitted with the rib is provided, and the electric wire cover has the rib and the groove in a non-fitting state. Up until now, the housing can be brought into contact with the housing in a direction substantially orthogonal to the back surface thereof, and can be slid from the contact position to the regular assembly position while being guided by the fitting of the rib and the groove. A part of the arm portion fits into the gap between the housing and the opening prevention wall as the wire cover is attached to the contact position, and the fitting portion of the arm portion fits into the wire. The rib and groove forming regions are set so as to move in the opening preventing wall forming region in the sliding process from the cover contact position to the regular assembly position.

According to a second aspect of the invention, in the first aspect of the invention, the lever is pivoted to an initial pivoting position in which the inlet of the cam groove of the arm portion is oriented toward the cam pin of the mating housing. First locking means that can be locked improperly, and is unlocked in the process in which the electric wire cover slides from the abutting position to the regular mounting position; and the electric wire cover when the electric wire cover is slid to the regular mounting position. Second locking means for locking the lever to the initial rotation position so that the lever cannot be rotated, and unlocked as the mating housing is initially fitted while the cam pin of the mating housing enters the entrance of the cam groove. Is provided.

[0009]

[Invention 1] When assembling the wire cover, first, while the wire cover is brought into contact with the housing in a direction substantially orthogonal to the rear surface thereof, the lever arm is formed into the housing. The wire cover is slid in parallel with the rear surface of the housing while the rib and the groove are fitted into each other, while being inserted into the gap with the opening prevention wall. As the wire cover is assembled at the contact position of the housing, a part of the arm part fits into the gap between the housing and the opening prevention wall, and the fitting part of the arm part is properly positioned from the contact position of the wire cover. Since it moves in the formation region of the opening prevention wall during the sliding process to the assembly position,
The gap between the housing and the opening prevention wall can be opened only on the wire cover side (the side facing the rear surface of the housing). As a result, it is possible to secure a wide area for forming the support portion of the opening prevention wall, and thus to secure the strength of the opening prevention wall.

When the assembly is completed, the electric wire cover is reliably separated from the housing by the engagement of the rib and the groove parallel to the back surface of the housing. [Invention of Claim 2] The first locking means locks the lever at the initial rotation position until the electric wire cover is assembled at the abutting position, and when the electric wire cover is slid from the abutting position to the regular assembly position, The second locking means locks the lever in place of the one locking means. This allows the lever to be locked in the initial position before it is fitted into the mating housing. In order to hold the lever at the initial rotation position, two independent locking means are provided. However, the two operations are performed by using the assembling operation of sliding the wire cover from the abutting position to the regular assembling position. Since the locking means is functioning in conjunction, the locking means functions and
It does not require a dedicated work to release it and has excellent workability.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION [First Embodiment] A first embodiment of the present invention will be described below with reference to FIGS. The lever-type connector of the present embodiment includes a first housing 10, an electric wire cover 30, a lever 40, and a second housing 50. In the following description, the vertical direction is based on FIG. 2, and the front-back direction is the left side in FIG. 2 as the front side. First
The housing 10 is made of synthetic resin and has a rectangular shape that is long in the front-rear direction as a whole. A plurality of cavities 11 penetrating in the vertical direction is formed in the first housing 10, and a terminal fitting (not shown) is housed in each cavity 11, and the electric wire 12 fixed to each terminal fitting is the first. It is led out in a bundle from the rear surface 10R (upper surface in FIG. 6) of the housing 10.

The first housing 10 has a fitting tubular portion 13 which is formed in a substantially rectangular shape and is opened downward, and the left and right outer side surfaces of the fitting tubular portion 13 prevent front and rear opening in pairs. The walls 14F and 14R are parallel to the outer side surface of the fitting cylinder portion 13 and between the outer side surface and the arm portion 42 of the lever 40.
Are provided with gaps 15F and 15R capable of accommodating The front side opening prevention wall 14F is a support portion 16a along the front end edge, a support portion 16b along the lower end edge, and a support that rises from the center position in the front-rear direction of the lower end edge at a height lower than that of the support portion 16a at the front end edge. The portion 16c supports the outer surface of the first housing 10. A gap 15F having an arc shape when viewed from the side is formed between the front opening prevention wall 14F and the first housing 10.
F is open only in the upper direction (direction toward the electric wire cover 30 assembled in the first housing 10) and the rear direction (direction corresponding to the rear opening prevention wall 14R).

The rear opening prevention wall 14R has a support portion 16a along the rear end edge, a support portion 16b along the lower end edge, and a support portion 16a from the center position of the lower end edge in the front-rear direction to the rear end edge.
With the support portion 16c that rises at a lower height,
It is supported on the outer surface of the housing 10. An arc-shaped gap 15R when viewed from the side is formed between the rear side opening prevention wall 14R and the first housing 10, and the gap 15R is located above (the wire cover to be assembled to the first housing 10). 30) and the front (the direction corresponding to the front side opening prevention wall 14F).

Further, on the back surface 10R of the first housing 10, a pair of front and rear ribs 17F, 1 along both left and right edges thereof.
7R is formed. The ribs 17F and 17R have an L-shaped cross section, and the upper ends thereof project inward when viewed in the front-rear direction. The formation area of the front rib 17F is a narrow area just above the front opening prevention wall 14F, and the formation area of the rear rib 17R is an area above the rear opening prevention wall 14R. . Both front and rear ribs 17
F and 17R have grooves 32F,
32R is adapted to be fitted. Further, a holding protrusion 18 is formed at a front end portion of the back surface 10R of the first housing 10 for restricting the electric wire cover 30 assembled to the first housing 10 from moving forward.

The front end portion of the rear rib 17R described above serves as a first release portion 23A for unlocking the first locking means 20A described later. Further, a notch 24 for avoiding interference with the cam pin 52 of the second housing 50 is opened at the lower end edge of the fitting tubular portion 13 between the front and rear double-opening prevention walls 14F and 14R of the fitting tubular portion 13. It is formed in the formed shape. The opening edge on the rear side of the cutout 24 is
Second locking portion 2 that constitutes second locking means 20B described later
It is 2B.

The wire cover 30 is made of a synthetic resin material and is assembled to the first housing 10 so as to cover the back surface 10R thereof. In the assembled state, the wire cover 30 is led out from the back surface 10R of the first housing 10. The plurality of electric wires 12 are bent backward in the electric wire cover 30, and are drawn out rearward from the outlet 31 of the rear end surface of the electric wire cover 30, that is, in a direction substantially parallel to the rear surface 10R of the first housing 10. Has become.

A pair of front and rear grooves 32F, 32R, which are open outward from the lower end edges of the outer side surfaces of the electric wire cover 30, are formed in the ribs 17 of the first housing 10.
It is formed so that it can be engaged with F and 17R. The electric wire cover 30 has a rear surface 10R of the first housing 10 at a position (contact position) slightly forward of the regular assembly position.
The front groove 32F and the rear groove 32R,
The ribs 17F on the front side and the ribs 17R on the rear side are positioned in front of the ribs 17F, respectively. When the electric wire cover 30 is moved rearward from this state, the grooves 32F and 32R and the ribs 17F and 17R start fitting, Due to the guiding action by this fitting, the electric wire cover 30 is slid from the contact position (see FIG. 8) to the regular assembly position (see FIG. 10).

Further, at the lower edge of the front end of the wire cover 30,
An elastic holding piece 33 that can elastically bend upward is formed, and when the electric wire cover 30 moves to the regular assembly position, the elastic holding piece 33 engages with the holding protrusion 18 of the first housing 10 and thus the electric wire cover. Floating of 30 toward the contact position side (front side) is restricted. Wire cover 30
A shaft portion 34 for rotatably supporting the lever 40 is formed on both left and right side walls of the electric wire cover 30 at a substantially central lower end of the side wall of the electric wire cover 30 in the form of a protrusion protruding outward. . Further, a lock projection 35 for locking the lever 40 at the fitting completion position is formed on the front wall of the wire cover 30 which is inclined forward and downward. Further, the front end portion of the groove 32R on the rear side of the electric wire cover 30 also functions as a first locking portion 22A of the first locking means 20A for locking the lever 40 with respect to the electric wire cover 30 in the initial rotation position. It is like this.

The lever 40 is made of a synthetic resin material and is composed of an operating portion 41 and a pair of arm portions 42 extending in a plate shape from the left and right ends of the operating portion 41. The arm portion 42 is formed with a bearing hole 43 that is fitted into the shaft portion 34, and is also formed with a substantially arcuate cam groove 44 whose inlet is opened to the outer peripheral edge of the arm portion 42. A thin fitting portion 45 is formed on the outer peripheral edge of the arm portion 42 so as to enter the gaps 15F and 15R between the opening prevention walls 14F and 14R and the first housing 10. The fitting portion 45 has an arc shape concentric with the bearing hole 43, and an inlet of the cam groove 44 is opened in the middle of the fitting portion 45.

The lever 40 has an initial rotation position (see FIG. 4).
(See FIG. 16) and the mating completion position (see FIG. 16). When the lever 40 is in the initial fitting position, the entrance of the cam groove 44 is opened downward, and the cam pin 52 of the second housing 50 is moved along with the shallow fitting of the first housing 10 and the second housing 50. The entrance of the cam groove 44 can be received. When the lever 40 is rotated from the initial rotation position to the rotation completion position, the engagement between the cam groove 44 and the cam pin 52 draws the two housings 10 and 50 toward each other, and the fitting progresses to the rotation completion position. When moved, both housings 10 and 50 are brought into a normal fitting state, and the operation portion 41 of the lever 40 is locked by the lock protrusion 35 on the front portion of the wire cover 30.

The ribs 17F and 17R and the grooves 32F and 32 in the front-back direction (the sliding direction of the electric wire cover 30) are also provided.
The R forming region is set as follows.
That is, the electric wire cover 30 is attached to the rear surface 10 of the first housing 10.
A part of the fitting portion 45 of the arm portion 42 fits into the gap 15F between the first housing 10 and the front side anti-opening wall 14F as it is assembled from above with respect to the contact position in R, and the fitting portion thereof. Opening prevention wall 14 on the front side of 45
The portion of the F fitted into the gap 15F moves only within the formation region of the front side opening prevention wall 14F in the process in which the wire cover 30 slides from the contact position to the regular assembly position. Therefore, in both the process of assembling the electric wire cover 30 at the abutting position and the process of sliding the electric wire cover 30 from the abutting position to the regular assembling position, the fitting portion 45 of the arm portion 42 causes the fitting portion 45 to move from the supporting portions 16a to 16a.
It does not interfere with 16c. Further, when the wire cover 30 is in the contact position, the fitting portion 45 is not fitted in the gap 15R between the rear side opening prevention wall 14R and the first housing 10, but the wire cover 30 is in the regular assembly position. Then, a part of the fitting portion 45 is fitted into the gap 15R between the rear side opening prevention wall 14R and the first housing 10. That is, in this state, the fitting portion 45 prevents the front and rear double-opening prevention wall 14 from being opened.
The arm portions 42 are prevented from opening by being fitted into the gaps 15F and 15R of F and 14R.

The arm portion 42 has a first locking means 20A.
The first elastic locking piece 21A and the second locking means 20 that configure the
A second elastic locking piece 21B forming B is formed. Each of the elastic locking pieces 21A and 21B extends in a cantilever manner in a substantially radial outward direction intersecting the rotation direction of the lever 40, and extends outward in a direction substantially parallel to the rotation center axis of the lever 40. It is elastically bendable in the direction. When the lever 40 is in the initial rotation position and the wire cover 30 is not assembled to the first housing 10, as shown in FIG. 5, the inward projection of the first elastic locking piece 21A has the wire cover 30. The locking direction of the lever 40 is substantially the same as the rotation direction of the lever 40 from the initial rotation position to the rotation completion position. And the first elastic locking piece 21A is attached to the first locking portion 22.
When A is pressed, the pressing direction is the first elastic locking piece 21A.
Is a direction intersecting with both the extending direction and the elastic bending direction. Therefore, there is no possibility that the first elastic locking piece 21A will elastically bend due to the turning force applied to the lever 40, and the first elastic locking piece 21A and the first locking portion 22A are locked, that is, the lever 40 The state of being locked at the initial rotation position is reliably maintained.

When the electric wire cover 30 in which the lever 40 is locked at the initial rotation position by the first locking means 20A as described above is assembled to the first housing 10, the lock by the first locking means 20A is released. That is, in the state where the wire cover 30 is temporarily assembled at the abutting position, the lock by the first locking means 20A is effective, but when the wire cover 30 is slid from the abutting position to the regular assembling position, the drawing As shown in FIG. 12, the first release portion 23A of the first housing 10 moves the first elastic locking piece 21A into the first release portion 23A.
It is elastically bent outward so as to be disengaged from the locking portion 22A. As a result, the lock of the lever 40 by the first locking means 20A is released.

Thus, the lock by the first locking means 20A is released as the electric wire cover 30 slides to the regular mounting position, but at the same time, the locking by the second locking means 20B functions, so that The lever 40 is kept locked in the initial rotation position. That is, as the wire cover 30 moves from the abutting position to the regular assembly position, the inward protrusion of the second elastic locking piece 21B becomes the first position.
The electric wire cover 3 is moved in the notch 24 of the housing 10.
When 0 reaches the regular assembly position, as shown in FIG. 10, the protrusion of the second locking portion 22B is locked from the front with respect to the second locking portion 22B which is the rear edge of the cutout 24. . Since this locking direction is substantially the same as the rotation direction of the lever 40 from the initial rotation position to the rotation completion position, the lever 40
When the second elastic locking piece 21B presses the second locking portion 22B by applying a turning force to the second elastic locking piece 21B, the pressing direction is in both the extending direction and the elastic bending direction of the second elastic locking piece 21B. It becomes the direction to intersect. Therefore, the second elastic locking piece 21B
Does not elastically bend due to the turning force applied to the lever 40, and the locked state between the second elastic locking piece 21B and the second locking portion 22B, that is, the state in which the lever 40 is locked at the initial rotation position is not. Securely retained.

The second housing 50 is made of a synthetic resin material and has a hood portion 51 that is opened upward. When the two housings 10 and 50 are fitted together, the hood portion 51 is the first.
It is fitted from below along the inner circumference of the fitting tubular portion 13 of the housing 10. A circular cam pin 52 is projected on both left and right outer surfaces of the hood portion 51 of the second housing 50, and a pair of vertically extending guide ribs 53F and 53R are formed on both front and rear sides of the cam pin 52. . The two guide ribs 53F and 53R are adapted to slide on the front and rear edges of the cutout portion 24 of the first housing 10 as the housings 10 and 50 are fitted together. Due to the sliding contact with the both housings 10 and 50, the housings 10 and 50 are held in a position to face each other. As a result, twisting is avoided, and both housings 10,
The fitting of 50 is performed smoothly. Also,
Of the front and rear guide ribs 53F and 53R, the rear guide rib 53R serves as a second release portion 23B for releasing the lock of the second lock means 20B. That is, when the housings 10 and 50 are shallowly fitted together while the lever 40 is held at the initial rotation position by the second locking means 20B, the cam pin 52 is fitted into the entrance of the cam groove 44 and is shown in FIG. So that the second release portion 23B is
The elastic locking piece 21B is elastically bent outward so as to be disengaged from the second locking portion 22B. As a result, the lock of the lever 40 by the second lock means 20B is released, and the lever 40 is in a state in which it can be rotated from the initial rotation position toward the rotation completion position.

Next, the operation of this embodiment will be described. When assembling, first, as shown in FIG.
With the lever 40 slightly rotated from the initial rotation position toward the rotation completion position side with respect to 0, the bearing hole 43 is fitted to the shaft portion 34 as shown in FIG. After that, when the lever 40 is rotated to the initial rotation position as shown in FIG. 4, the lever 40 moves the first locking means 20A (the first elastic locking piece 21A).
A is locked at the initial rotation position by the locking of A and the first locking portion 22A.

Next, the electric wire cover 30 is assembled to the first housing 10. When assembling, wire cover 3
0 is attached to the first housing 10 in a direction orthogonal to the back surface 10R of the first housing 10 to form a contact position (see FIG. 8).
Along with this, a part of the fitting portion 45 of the arm portion 42 causes a gap 15F between the front opening prevention wall 14F and the first housing 10.
Be inserted into. Further, the lever 40 is kept locked by the first locking means 20A while the wire cover 30 reaches the contact position.

Thereafter, when the electric wire cover 30 at this contact position is moved rearward, the ribs 17F, 17R and the grooves 32F,
32R starts fitting, and then the ribs 17F, 1
The electric wire cover 30 slides rearward in parallel with the rear surface 10R of the first housing 10 while being guided by the fitting of the 7R and the grooves 32F, 32R, and reaches the regular assembly position (see FIG. 10). As the electric wire cover 30 moves to the regular assembly position, the lock by the first lock means 20A is released by the first release portion 23A, and at the same time, the lock is operated by the second lock means 20B, and the lever 40 is initialized. Keep locked in pivot position. Further, from the state in which the fitting portion 45 of the arm portion 42 is fitted only in the gap 15F of the front opening prevention wall 14F (see FIG. 8), it is fitted in the gaps 15F, 15R of the front and rear opening prevention walls 14F, 14R. Transition to the state (see FIG. 10).

By the above, the assembling on the first housing 10 side is completed. After that, the second housing 50 is shallowly fitted to the first housing 10. Then, as shown in FIG.
As shown in FIG. 5, the cam pin 52 is fitted into the entrance of the cam groove 44, and at the same time, the lever 40 by the second locking means 20B is inserted.
The second lock is released by the second release portion 23B. After that, when the operating portion 41 is picked up and the lever 40 is rotated toward the rotation completion position, the housings 10 and 50 are fitted together.

As described above, in the present embodiment, as the wire cover 30 is attached to the abutting position of the first housing 10, a part of the fitting portion 45 of the arm portion 42 is moved to the first position.
Gap 15 between the housing 10 and the front opening prevention wall 14F
It is fitted in F, and the fitting portion 45 of the arm portion 42 moves in the formation region of the front side opening prevention wall 14F in the sliding process from the contact position of the electric wire cover 30 to the regular assembly position. Therefore, the first housing 10
The gap 15F between the opening prevention wall 14F and the opening prevention wall 14F may be opened only on the electric wire cover 30 side (the side facing the rear surface 10R of the first housing 10). Thereby, the opening prevention wall 14F
It is possible to secure a wide area for forming the support portions 16a to 16c, and to secure the strength of the opening prevention wall 14F.

When the assembly is completed, the ribs 17F and 17R parallel to the rear surface 10R of the housing and the groove 32 are formed.
The electric wire cover 3 is formed by engaging the concave and convex portions with the F and 32R.
0 is surely regulated to be separated from the housing. Further, two independent locking means 20A and 20B are provided to hold the lever 40 in the initial rotation position. However, the wire cover 30 is slid from the abutting position to the regular mounting position. Since the two locking means 20A and 20B are caused to function in association with each other by using the operation, a dedicated work for functioning / releasing the locking means is not required, which is excellent in workability.

Further, after the lever 40 is attached to the electric wire cover 30, the first housing 10 and the second housing 50 are attached.
Until the initial fitting of and, even if a turning force is applied to the lever 40 due to interference of foreign matter, the elastic locking piece 2
The levers 1A and 21B and the locking portions 22A and 22B are locked to each other in the rotation direction of the lever 40, so that the lever 4
0 is reliably held in the initial rotation position. Moreover, since the lock is released when the first housing 10 and the second housing 50 are initially fitted together, the levers can be left as they are after the housing 10 and 50 are initially fitted together without performing the work for unlocking. It is possible to shift to the turning work of 40, and the workability is excellent.

[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 to the above, various modifications can be made without departing from the scope of the invention. (1) In the above embodiment, the elastic locking piece of the first locking means is provided on the lever and the locking portion is provided on the electric wire cover, but according to the present invention, the elastic locking piece of the first locking means is provided on the electric wire cover. The locking portion may be provided on the lever as well as on the lever.

(2) In the above embodiment, the elastic locking piece of the second locking means is provided on the lever and the locking portion is provided on the first housing, but according to the present invention, the elastic locking piece of the second locking means is provided. The piece may be provided on the first housing and the locking portion may be provided on the lever. (3) In the above embodiment, the rib is provided on the first housing and the groove is provided on the wire cover, but according to the present invention,
The rib may be provided on the electric wire cover and the groove may be provided on the first housing.

[Brief description of drawings]

FIG. 1 is a perspective view of a first housing.

[Fig. 2] Side view of the lever removed from the wire cover

FIG. 3 is a side view showing a state in which the lever is attached to the electric wire cover.

FIG. 4 is a side view showing a state in which the lever is locked at an initial rotation position.

FIG. 5 is a partially enlarged horizontal sectional view showing a locked state of the first locking means.

FIG. 6 is a side view showing a state in which the electric wire cover is removed from the first housing.

FIG. 7 is a rear view of the electric wire cover removed from the first housing.

FIG. 8 is a side view showing a state in which the electric wire cover is temporarily assembled with the first housing at a contact position.

FIG. 9 is a rear view of the electric wire cover assembled to the first housing.

FIG. 10 is a side view showing a state where the electric wire cover is assembled to the first housing at a regular assembly position.

FIG. 11 is a partially enlarged transverse sectional view showing a locked state of the second locking means.

FIG. 12 is a partially enlarged horizontal sectional view showing an unlocked state of the first locking means.

FIG. 13 is a side view with the first housing and the second housing removed.

FIG. 14 is a side view showing a state where the first housing and the second housing are shallowly fitted together.

FIG. 15 is a partially enlarged cross-sectional view showing the unlocked state of the second lock means.

FIG. 16 is a side view showing a state in which both housings are properly fitted.

[Explanation of symbols]

10 ... 1st housing (housing) 10R ... Rear of first housing 12 ... Electric wire 14F, 14R ... Opening prevention wall 16a, 16b, 16c ... Supporting part 17F, 17R ... Ribs 20A ... First locking means 20B ... second locking means 30 ... Wire cover 32F, 32R ... Groove 40 ... lever 41 ... Operation part 42 ... Arm part 44 ... Cam groove 52 ... cam pin

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Michiaki Okamoto             Sumitomo Den 1-14 Nishi-Suehiro-cho, Yokkaichi-shi, Mie Prefecture             Sozo Co., Ltd. (72) Inventor Masanori Wakui             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. (72) Inventor Keiichi Ito             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. F-term (reference) 5E021 FA05 FA09 FC31 FC36 HB02                       HB04 HB05 HB11 HC07 HC35

Claims (2)

[Claims] 1. A housing in which an electric wire is led out from a rear surface, an electric wire cover which is assembled to the rear surface of the housing so as to cover the electric wire, and a pair of arm portions extending from both ends of an operation portion, the electric wire cover. Prior to being assembled to the housing, the lever being rotatably supported by the electric wire cover in advance, an opening prevention wall formed along the outer surface of the housing, and the opening prevention member on the outer surface of the housing. With the support portion supporting the wall and the electric wire cover assembled to the housing, the arm portion is inserted into the gap between the housing and the opening prevention wall, and the electric wire cover is normally assembled. In the structure in which the opening of the arm portion is restricted by the opening prevention wall, one of the housing and the electric wire cover A rib that is parallel to the back surface of the housing is provided on one side, and a groove that can be fitted to the rib is provided on the other side, and the wire cover does not fit the rib and the groove. In this state, the housing can be brought into contact with the housing in a direction substantially perpendicular to the rear surface thereof, and the housing is guided from the contact position to the regular assembly position while being guided by the fitting of the rib and the groove. A part of the arm part is fitted into a gap between the housing and the opening prevention wall when the wire cover is attached to the abutting position, and the fitting part of the arm part is slidable. However, in the sliding process from the contact position of the electric wire cover to the regular assembly position, so as to move in the formation region of the opening prevention wall,
A lever-type connector, wherein formation regions of the rib and the groove are set. 2. The lever can be non-rotatably locked at an initial rotational position in which an inlet of a cam groove of the arm portion opens toward a cam pin of a mating housing.
Also, first locking means that is unlocked in the process in which the wire cover slides from the contact position to the regular assembly position, and the lever is set to the initial rotation position when the wire cover is slid to the regular assembly position. Locked to prevent rotation,
The second locking means is provided, which is unlocked when the mating housing is initially fitted while the cam pin of the mating housing enters the entrance of the cam groove. Lever connector.