JP2010092888A - Lever-type connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lever-type connector capable of preventing an operator from damaging a lever at the time of mounting the lever on a housing. <P>SOLUTION: The lever-type connector 1 includes the housing 10, a wire cover 20 mounted on a back face side of the housing 10, and the lever 30 with a pair of side plates 32 and a connection section 33 for mutually connecting both side plates 32. The lever 30 straddles a back face side of the wire cover 20, and is rotatably mounted on the housing 10 while the wire cover 20 is sandwiched by both side plates 32 in the thickness direction. A tapered section 51 gradually reducing the thickness to the outside is formed on the back face side of the wire cover 20. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a lever-type connector that engages and releases a mating connector by rotating a lever.

In recent years, electrical connectors used in the field of automobiles and the like have become multipolar. And in the electrical connector formed in multiple poles, big force is needed when fitting between connectors and releasing a fitting. For this reason, in the field of automobiles and the like, lever-type connectors that use the boosting effect of the lever to engage and release the mating connector are used.
In general, a lever of a lever-type connector has a pair of side plates and a connecting portion that connects the two side plates to each other, and is formed in a U shape. In addition, on the inner surfaces of the front end portions of the both side plates, there are provided rotating shafts for attaching the levers to the housing. And when attaching a lever to a housing, it is necessary for an operator to expand the front-end | tip part of a lever by manual work, and to fit both rotating shafts to the bearing part of a housing, respectively. Therefore, in a lever type connector, when attaching a lever to a housing, there exists a problem that an operator may damage a lever by expanding the front-end | tip part of a lever too much.

  In particular, in a lever-type connector formed in multiple poles, a reaction force when mating with a mating connector is increased, and the lever may be bent. In the lever-type connector, when the lever is bent when mated with the mating connector, the mating with the mating connector becomes incomplete. Therefore, in the lever type connector formed in multiple poles, the lever is made of a hard material in order to prevent the lever from being bent when mating with the mating connector. However, if the lever is made of a hard material, the lever is likely to crack when the operator widens the tip of the lever.

Therefore, a lever-type connector that can prevent an operator from damaging the lever when the lever is attached to the housing has been developed.
Conventionally, as shown in FIG. 21, for example, a lever-type connector that can reduce an operator from damaging the lever when the lever is attached to the housing is known (see Patent Document 1).

FIG. 21 is a plan view showing a conventional lever-type connector.
The lever-type connector 100 shown in FIG. 21 includes a connector housing 110 and a lever 120 attached so as to be able to rotate with respect to the connector housing 110.
The connector housing 110 includes a terminal accommodating portion 111 that accommodates terminals, and an outer cylinder portion 112 that surrounds the terminal accommodating portion 111. On both side surfaces of the outer cylinder portion 112, lever mounting portions 113 for mounting the lever 120 are provided. Both lever mounting portions 113 are each formed in a bag shape that opens forward. On both side surfaces of the lever mounting portions 113, introduction grooves 114 extending in the front-rear direction (vertical direction shown in FIG. 21) are formed. A bearing portion 115 that holds the rotating shaft 123 of the lever 120 is provided at the rear end portion of each introduction groove 114.

  The lever 120 includes a pair of side plates 121 (only one is shown) and a connecting portion 122 that connects one end of each side plate 121 to each other, and is formed in a U shape as a whole. Rotating shafts 123 are provided on the inner surfaces of the front end portions of the side plates 121 so as to protrude inward. A gear piece 124 that fits with the gear piece 210 of the mating connector 200 is provided on the outer peripheral surface of each rotating shaft 123.

  When attaching the lever 120 to the connector housing 110, first, the tip of the lever 120 is expanded, and the two rotation shafts 123 of the lever 120 are inserted into the introduction grooves 114 of the lever mounting portion 113 of the connector housing 110, respectively. Then, the tip of the lever 120 is moved while the inner surfaces of the both side plates 121 are aligned with the outer surface of the lever mounting portion 113 of the connector housing 110, and the rotating shafts 123 of the both side plates 121 are respectively moved to the bearing portions 115 of the lever mounting portion 113. To fit.

Thus, in the lever-type connector 100, the operator does not need to simultaneously perform the work of expanding the tip of the lever 120 and the work of moving the lever 120 to a predetermined position. For this reason, it can concentrate on the operation | work which moves to a predetermined position.
Therefore, in the lever type connector 100, the U-shaped lever 120 can be easily mounted on the connector housing 110 by providing the bag mounting portion 113 formed in a bag shape.

JP 2006-147492 A

However, the lever-type connector 100 shown in FIG. 21 does not include means for actively expanding the tip of the lever 120, and is merely for maintaining a state where the tip of the lever 120 is expanded.
Therefore, the lever connector 100 cannot prevent the lever 120 from being damaged when the operator expands the tip of the lever 120.
The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a lever-type connector that can prevent an operator from damaging the lever when the lever is attached to the housing. Is to provide.

  A lever-type connector according to the present invention includes a housing that accommodates a contact, a wire cover that is attached to the back side of the housing and covers an electric wire connected to the contact accommodated in the housing, a pair of side plates, and the both side plates And a lever formed in a U-shape, the lever straddling the back side of the wire cover and sandwiching the wire cover in the thickness direction between the side plates And a lever-type connector attached so as to be able to rotate with respect to the housing, wherein a taper portion that gradually decreases in thickness toward the outside is formed on the back side of the wire cover. It is characterized by.

In the lever-type connector according to the present invention, when the lever is attached to the housing, if the end portions of both side plates of the lever are moved along the tapered portions, the tapered portions expand both side plates.
Therefore, according to the lever-type connector according to the present invention, when the lever is attached to the housing, the operator only needs to expand the end of the lever so that the end of the tapered portion can be inserted. It is possible to prevent the lever from being damaged.

  According to the lever connector according to the present invention, it is possible to prevent the operator from damaging the lever when the lever is attached to the housing.

It is a perspective view which shows the upper surface side of the lever-type connector which is embodiment of this invention, and the one side of the left-right direction. It is a perspective view which shows the lower surface side of the lever-type connector shown in FIG. 1, and the other side of the left-right direction. It is a top view of the lever-type connector shown in FIG. It is a side view which shows the one side of the left-right direction of the lever-type connector shown in FIG. It is a side view which shows the other side of the left-right direction of the lever-type connector shown in FIG. It is a rear view of the lever-type connector shown in FIG. It is a perspective view which shows the state which decomposed | disassembled the lever-type connector shown in FIG. It is a partial expanded rear view which shows the one end part of the lever with which the lever-type connector shown in FIG. It is a perspective view which shows the upper surface side and the one side of the left-right direction in the state in the middle of attaching a wire cover to a housing. It is a perspective view which shows the lower surface side of the state in the middle of attaching a wire cover to a housing, and the other side of the left-right direction. It is a perspective view which shows the state which the attachment of the wire cover to a housing was completed and the lever is not attached. It is a perspective view which shows the state in the middle of straddling the back side of a wire cover with the both-sides board of a lever. It is a perspective view which shows the state which straddled the wire cover with the both-sides board of the lever. It is a perspective view which shows the state which the assembly of the lever-type connector was completed. It is a perspective view which shows the state in the middle of removing a lever from a wire cover. It is a perspective view which shows the state which the removal of the lever from a wire cover was completed. It is a perspective view which shows the state in the middle of attaching a lever to a wire cover again. It is a top view which shows the lever-type connector of the state in which the lever was rotated to the final position of the rear side. It is a top view which shows the lever-type connector of the state which the lever rotated to the final position of the front side. It is sectional drawing of the lever type connector shown in FIG. It is a top view which shows the conventional lever type connector.

Next, a lever type connector according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an upper surface side and one side in a left-right direction of a lever connector according to an embodiment of the present invention. FIG. 2 is a perspective view showing the lower surface side of the lever connector shown in FIG. 1 and the other side in the left-right direction. FIG. 3 is a plan view of the lever-type connector shown in FIG. FIG. 4 is a side view showing one side of the lever-type connector shown in FIG. 1 in the left-right direction. FIG. 5 is a side view showing the other side of the lever connector shown in FIG. 1 in the left-right direction. FIG. 6 is a rear view of the lever-type connector shown in FIG. FIG. 7 is a perspective view showing a state where the lever-type connector shown in FIG. 1 is disassembled. FIG. 8 is a partially enlarged rear view showing one end of a lever provided in the lever-type connector shown in FIG.

  FIG. 9 is a perspective view showing the upper surface side and one side in the left-right direction in the middle of attaching the wire cover to the housing. FIG. 10 is a perspective view showing the lower surface side and the other side in the left-right direction in a state where the wire cover is being attached to the housing. FIG. 11 is a perspective view showing a state in which the attachment of the wire cover to the housing is completed and the lever is not attached. FIG. 12 is a perspective view showing a state in the middle of straddling the back side of the wire cover with both side plates of the lever. FIG. 13 is a perspective view showing a state where the wire cover is straddled by the both side plates of the lever. FIG. 14 is a perspective view showing a state where the assembly of the lever-type connector is completed. FIG. 15 is a perspective view showing a state in the middle of removing the lever from the wire cover. FIG. 16 is a perspective view showing a state where the removal of the lever from the wire cover is completed. FIG. 17 is a perspective view showing a state in the middle of reattaching the lever to the wire cover. FIG. 18 is a plan view showing the lever-type connector in a state where the lever is rotated to the final position on the rear side. FIG. 19 is a plan view showing the lever-type connector in a state where the lever is rotated to the final position on the front side. 20 is a cross-sectional view of the lever-type connector shown in FIG.

A lever-type connector 1 shown in FIGS. 1 to 7 includes a housing 10 that accommodates a plurality of contacts (not shown), a wire cover 20 that is attached to the back side (upper side shown in FIG. 3) of the housing 10, and a housing. 10 and a lever 30 attached to 10.
As shown in FIG. 7, the housing 10 is formed so as to extend along the left-right direction (left-right direction shown in FIG. 3), and passes through the contact accommodating hole 11 penetrating along the front-rear direction (up-down direction shown in FIG. 3). Have more than one. As shown in FIGS. 2 and 5, slider housing grooves 12 extending in the left-right direction are provided on both inner surfaces of the housing 10 in the up-down direction (up-down direction shown in FIGS. 4 and 5). And in each slider accommodation groove | channel 12, the slider 13 is accommodated so that it can move freely along the left-right direction. As shown in FIG. 7, a pair of bearing portions 16 to which shaft portions 34 described later of the lever 30 are respectively fitted are provided at one end portion of the housing 10 in the left-right direction. A latch arm 16 a for locking the shaft portion 34 of the lever 30 fitted to each bearing portion 16 is provided behind each bearing portion 16 of the housing 10. As shown in FIG. 7, fixing pieces 17 for fixing the wire cover 20 are provided at both ends of the back surface of the housing 10 in the vertical direction. Both the fixing pieces 17 are provided so as to protrude rearward and extend along the left-right direction. A plurality (four in this embodiment) of fixing protrusions 17a protruding outward are provided on the outer side surface of each fixing piece 17 in the vertical direction.

  Each slider 13 is formed in a flat plate shape and extends along the left-right direction. A plurality of cam grooves (not shown) for pulling and pushing cam pins (not shown) provided on the mating connector are provided on the inner surface of each slider 13 along the left-right direction. Further, as shown in FIG. 7, a bearing portion 15 to which a slider moving shaft 35 (described later) of the lever 30 is fitted is provided at one end portion of each slider 13 in the left-right direction.

The lever 30 has a pair of side plates 32 extending in the left-right direction and a connecting portion 33 that connects the other ends of the side plates 32 to each other, and is formed in a U shape.
As shown in FIGS. 7 and 8, slider moving shafts 35 that fit into the bearing portions 15 of the slider 13 are formed on the outer surfaces of the one end portions of the side plates 32 so as to protrude outward. . On the inner surface of one end portion of each side plate 32, a shaft portion 34 that is fitted to the bearing portion 16 of the housing 10 is provided so as to protrude inward. Further, as shown in FIG. 8, a connection plate 37 extending inward is provided on the inner surface of one end of each side plate 32. Then, at one end of both side plates 32, a concave portion 37 a provided at the tip of the connecting plate 37 of one side plate 32 and a convex portion 37 b provided at the tip of the connecting plate 37 of the other side plate 32 are fitted. Are connected to each other. Further, as shown in FIG. 7, a flat portion 38 is formed on the inner surface on one end side of the both side plates 32 so as to come into contact with a slope 50 a described later of the wire cover 20 when the lever 30 is removed from the housing 10. Further, notches 39 extending along the left-right direction are provided on the inner surfaces of the both side plates 32.

As shown in FIG. 1, the connecting portion 33 is provided with a recess 33 a in which a lock piece 27 b of a lock member 27 described later of the wire cover 20 is engaged.
The wire cover 20 includes a main body portion 21 that covers an electric wire (not shown) connected to contacts accommodated in the housing 10, a restraining portion 22 provided on one side in the left-right direction of the main body portion 21, and a main body portion. 21 and the first taper portion 50 formed between the restraining portion 22. The thickness of the main body 21 in the vertical direction is smaller than the distance between the side plates 32 of the lever 30. On the other hand, the thickness of the restraining portion 22 in the vertical direction is larger than the distance between the side plates 32 of the lever 30. Thereby, the suppression part 22 suppresses that the lever 30 rotated to the rear last position (refer FIG. 18) is rotated further back.

At one end portion in the left-right direction of the restraining portion 22, an electric wire outlet 24 is provided that allows the electric wires connected to the contacts accommodated in the housing 10 to be led out in a bundled state. A hood portion 25 that protrudes toward one side in the left-right direction is provided around the electric wire outlet 24 of the suppression portion 22. The outer surface of the hood portion 25 is formed in an arc shape.
The first taper portion 50 is formed so as to be continuous with the main body portion 21 and the suppression portion 22. The first taper portion 50 includes a slope 50 a that is continuous with the upper surface of the main body portion 21 and the top surface of the suppression portion 22, and a slope 50 b that is continuous with the bottom surface of the main end portion 21 and the bottom surface of the suppression portion 22.

  As shown in FIG. 2, a lock member 27 is provided on the back surface of the main body 21 to prevent the lever 30 that has been rotated to the final position on the front side (see FIGS. 19 and 20) from rotating to the rear side. The lock member 27 is formed in the shape of a cantilever leaf spring, and extends from the rear side of the connecting portion 33 of the lever 30 located at the final position of the front side toward the front side. The lock member 27 includes a plate spring 27a, a lock piece 27b provided on the outer surface of the plate spring 27a, and a release convex portion 27c. The leaf spring 27a is provided so as to extend from the rear side to the front side of the connecting portion 33 of the lever 30 located at the final position on the front side. The lock piece 27b is provided so as to be engaged with the recess 33a of the connecting portion 33 of the lever 30 located at the final position on the front side. The release convex portion 27c is provided so as to be located on the front side of the connecting portion 33 of the lever 30 located at the final position on the front side.

On the upper surface and the lower surface of the main body 21, there are provided locking convex portions 28 that prevent the lever 30 that has been rotated to the final position on the rear side from rotating forward. Each locking convex portion 28 is provided so as to be engaged with the side surface of the notch portion 39 of each side plate 32 of the lever 30 located at the final position on the rear side.
As shown in FIG. 7, a fixing portion 29 for fixing the wire cover 20 to the housing 10 is provided at the front end portion of the upper surface of the main body portion 21 and the front end portion of the lower surface, respectively. Both fixing portions 29 are provided so as to extend along the left-right direction. Both fixing portions 29 are provided so as to protrude outward in the vertical direction. On the inner surface of each fixing portion 29, a fixing groove portion 29a into which the fixing convex portion 17a of the housing 10 is inserted is provided along the left-right direction. A latch arm 29 b is provided at the other end of each fixing portion 29 in the left-right direction. Each latch arm 29 b is provided with a convex portion (not shown) that is engaged with the side surface of the fixing convex portion 17 a of the housing 10.
A second tapered portion 51 is formed on the back side of the main body portion 21 so that the thickness in the vertical direction gradually decreases toward the outside.

Next, a method for assembling the lever connector 1 will be described.
When assembling the lever-type connector 1, first, contacts connected to electric wires are accommodated in the plurality of contact accommodating holes 11 of the housing 10 of the lever-type connector 1 in an exploded state shown in FIG. 7. Further, the sliders 13 are inserted into the slider housing grooves 12 of the housing 10.

  Next, the wire cover 20 is attached to the housing 10 in which a plurality of contacts are accommodated. When attaching the wire cover 20 to the housing 10, as shown in FIGS. 9 and 10, the wire cover 20 installed on the rear side of the housing 10 is slid from the other side in the left-right direction of the housing 10 toward one side. Let As a result, the plurality of fixing projections 17 a of the two fixing pieces 17 of the housing 10 are inserted into the fixing groove portions 29 a of the fixing portions 29 of the wire cover 20, respectively. Here, the plurality of fixing protrusions 17a are inserted into the fixing groove 29a from one side in the left-right direction of the fixing groove 29a in order from the other side in the left-right direction. Then, when the wire cover 20 is slid and the side surface of the fixing convex portion 17a provided on the other side in the left-right direction hits the wall surface on the other side in the left-right direction of the fixing groove portion 29a, as shown in FIG. Then, the attachment of the wire cover 20 to the housing 10 is completed.

  In a state where the attachment of the wire cover 20 to the housing 10 is completed, the convex portion provided on the latch arm 29b of the fixing portion 29 is the other in the left-right direction of the fixing convex portion 17a provided on the other side in the left-right direction. The wire cover 20 is locked by engaging with the side surface. In addition, when the attachment of the wire cover 20 to the housing 10 is completed, the electric wires connected to the plurality of contacts accommodated in the housing 10 are led out from the electric wire outlet 24 of the wire cover 20 in a bundled state. The

  Next, the lever 30 is attached to the housing 10 to which the wire cover 20 is attached. When the lever 30 is attached to the housing 10 to which the wire cover 20 is attached, the lever 30 and both side plates 32 straddle the back side of the wire cover 20, and the wire cover 20 is vertically moved (thickness direction) by the side plates 32. It is necessary to arrange the wire cover 20 so as to be sandwiched between the two.

  Therefore, when attaching the lever 30 to the housing 10, first, as shown in FIG. 11, the distal end portions of the side plates 32 of the lever 30 are manually expanded, and the distance between the distal ends of the connecting plates 37 of the side plates 32 is set. It is set as the space | interval which can insert the edge part of the 2nd taper part 51 of the wire cover 20. FIG. And the end part of the 2nd taper part 51 of the wire cover 20 is inserted between the front-end | tips of both the connection plates 37 in the state which expanded the front-end | tip part of the both-sides board 32 of the lever 30 by manual work.

  And after inserting the edge part of the 2nd taper part 51 of the wire cover 20 between the front-end | tips of the connection board 37 of the both-sides board 32 of the lever 30, the expansion of the both-sides board 32 by manual work is stopped, and both connection is carried out. The front ends of the plates 37 are brought into contact with the surface of the second tapered portion 51, respectively. Then, the lever 30 is pushed in, and the tip of the connecting plate 37 of the both side plates 32 is moved toward the front side of the wire cover 20.

When the lever 30 is pushed in, the leading ends of the connecting plates 37 of the both side plates 32 are moved along the surface of the second tapered portion 51, respectively. And the 2nd taper part 51 of the wire cover 20 pushes and expands the front-end | tip part of the both-sides board 32 of the lever 30. FIG.
When the lever 30 is further pushed in, the leading ends of the connecting plates 37 of the both side plates 32 are moved from the surface of the second tapered portion 51 of the wire cover 20 to the surface of the main body portion 21. Thereafter, the distal ends of the connecting plates 37 of the side plates 32 of the lever 30 are moved along the surface of the main body 21 of the wire cover 20 as shown in FIG.

  When the lever 30 is further pushed in, as shown in FIG. 13, the leading ends of the connecting plates 37 of the side plates 32 get over the main body portion 21 of the wire cover 20, respectively. And the deformation | transformation of the connection part 33 of the lever 30 is cancelled | released, and the convex part 37b provided in the front-end | tip of the connection board 37 of the other side board 32 and the recessed part 37a provided in the front-end | tip of the connection board 37 of the other side plate 32 is formed. Mating. As a result, the lever 30 is disposed on the wire cover 20 with both side plates 32 straddling the back side of the wire cover 20 and the both sides plates 32 sandwiching the wire cover 20 in the vertical direction.

Then, the shaft portions 34 of the side plates 32 of the lever 30 are respectively fitted to the bearing portions 16 of the housing 10, and the slider moving shafts 35 of the side plates 32 of the lever 30 are respectively fitted to the bearing portions 15 of the sliders 13. To fit. Thereby, as shown in FIG. 14, the lever 30 is attached to the wire cover 20, and the assembly of the lever-type connector 1 is completed.
As described above, in the lever-type connector 1, the second tapered portion 51 is formed on the back side of the main body portion 21 of the wire cover 20 so that the thickness in the vertical direction gradually decreases toward the outside. Therefore, when the operator attaches the lever 30 to the housing 10, the distance between the tips of the connecting plates 37 of the side plates 32 is such that the second taper portion 51 of the wire cover 20 has a small thickness in the vertical direction. What is necessary is just to expand the front-end | tip part of the both-sides board 32 so that it may become the space | interval which can insert a part. After that, by pushing the lever 30, the second taper portion 51 of the wire cover 20 has the same distance between the tips of the connecting plates 37 of the side plates 32 as the thickness of the body portion 21 of the wire cover 20 in the vertical direction. The front end portions of the side plates 32 of the lever 30 are pushed and expanded.

Here, the thickness of the end portion of the second tapered portion 51 of the wire cover 20 in the vertical direction is sufficiently smaller than the thickness of the main body portion 21 in the vertical direction. Therefore, when attaching the lever 30, the operator does not expand the side plates 32 until the distance between the tips of the connecting plates 37 of the side plates 32 becomes larger than the vertical thickness of the main body portion 21 of the wire cover 20. In addition, the lever 30 is formed to have a strength that does not break even if the connecting portion 33 is deformed so that the distance between the connecting plates 37 of the side plates 32 is the same as the thickness of the body portion 21 of the wire cover 20 in the vertical direction. .
Therefore, according to the lever-type connector 1, when attaching the lever 30 to the housing 10, it is possible to prevent an operator from excessively expanding the tip of the lever 30 and to prevent the lever 30 from being damaged. Become.

Next, the operation | work at the time of replacing | exchanging the contact of the lever-type connector 1 is demonstrated.
In the lever type connector 1, in order to replace the contacts, it is necessary to expose the contacts accommodated in the housing 10 by removing the wire cover 20 from the housing 10. Further, in the lever-type connector 1, in order to remove the wire cover 20 from the housing 10, it is necessary to remove from the wire cover 20 the lever 30 that is disposed across the back side of the wire cover 20.

Therefore, when replacing the contact of the lever-type connector 1, first, the lever 30 is removed from the wire cover 20 of the lever-type connector 1 in a state where the assembly shown in FIG.
When removing the lever 30 from the wire cover 20, first, as shown in FIG. 13, the shaft portions 34 of the side plates 32 of the lever 30 are removed from the respective bearing portions 16 of the housing 10. Further, the slider moving shafts 35 of the both side plates 32 of the lever 30 are removed from the bearing portions 15 of the respective sliders 13.

Next, the lever 30 is pushed in, and the front ends of the side plates 32 are moved toward the rear side of the wire cover 20.
When the lever 30 is pushed in, the flat portions 38 of the both side plates 32 come into contact with the first tapered portions 50 of the wire cover 20 respectively. When the lever 30 is further pushed in, the flat portions 38 of the side plates 32 are moved along the inclined surfaces 50a and 50b of the first tapered portion 50 of the wire cover 20, respectively, as shown in FIG. And the 1st taper part 50 of the wire cover 20 pushes and expands the front-end | tip part of the both-sides board 32 of the lever 30. FIG.

  When the lever 30 is further pushed in, as shown in FIG. 16, the front ends of the side plates 32 get over the restraining portions 22 of the wire cover 20, respectively. And the deformation | transformation of the connection part 33 of the lever 30 is cancelled | released, and the convex part 37b provided in the front-end | tip of the connection board 37 of the other side board 32 and the recessed part 37a provided in the front-end | tip of the connection board 37 of the other side plate 32 is formed. Mating. Thereby, the lever 30 is removed from the wire cover 20. In this case, although not illustrated, the lever 30 is in a state of straddling the electric wire led out from the electric wire outlet 24 of the wire cover 20 by the both side plates 32.

As described above, in the lever-type connector 1, the first tapered portion 50 that is continuous with the main body portion 21 is formed in the suppressing portion 22. Therefore, when the operator removes the lever 30 from the housing 10, it is not necessary for the operator to expand the front end portions of the side plates 32. That is, when the operator pushes the lever 30 toward the rear side of the wire cover 20, the first taper portion 50 of the wire cover 20 has an interval between the side plates 32 and the thickness of the restraining portion 22 of the wire cover 20 in the vertical direction. The end portions of the side plates 32 are pushed and expanded so as to be the same.
Therefore, according to the lever-type connector 1, when removing the lever 30, it is prevented that an operator expands the front-end | tip part of the lever 30 too much, and it becomes possible to prevent that the lever 30 is damaged. .

  Next, the contact accommodated in the housing 10 is exposed by removing the wire cover 20 from the housing 10. When removing the wire cover 20 from the housing 10, the lock by the latch arm 29 b of the wire cover 20 is released, and the wire cover 20 is slid from one side in the left-right direction of the housing 10 toward the other side. Accordingly, as shown in FIG. 7, the wire cover 20 is removed from the housing 10, and the contacts accommodated in the housing 10 can be replaced.

Then, after the replacement of the contacts accommodated in the housing 10 is completed, the wire cover 20 is attached to the housing 10 again by the procedure described above.
Further, the lever 30 is attached again to the housing 10 to which the wire cover 20 is attached. When the lever 30 is reattached to the housing 10 to which the wire cover 20 is attached, the notch portions 39 of the side plates 32 of the lever 30 are brought into contact with the outer surface of the hood portion 25 of the restraining portion 22 of the wire cover 20, respectively. And the lever 30 is pushed in so that the notch part 39 of the both-sides board 32 of the lever 30 may be moved toward the front side of a wire cover.

When the lever 30 is pushed in, as shown in FIG. 17, the cutout portions 39 of the side plates 32 are moved along the outer surface formed in the arc shape of the hood portion 25 of the restraining portion 22 of the wire cover 20. And the hood part 25 of the suppression part 22 of the wire cover 20 pushes and expands the front-end | tip part of the both-sides board 32 of the lever 30. FIG.
When the lever 30 is further pushed in, as shown in FIG. 13, the tip portions of the side plates 32 get over the restraining portions 22 of the wire cover 20, respectively. And the deformation | transformation of the connection part 33 of the lever 30 is cancelled | released, and the convex part 37b provided in the front-end | tip of the connection board 37 of the other side board 32 and the recessed part 37a provided in the front-end | tip of the connection board 37 of the other side plate 32 is formed. Mating. As a result, the lever 30 is disposed on the wire cover 20 with both side plates 32 straddling the back side of the wire cover 20 and the both sides plates 32 sandwiching the wire cover 20 in the vertical direction.

  Then, the shaft portions 34 of the side plates 32 of the lever 30 are respectively fitted to the bearing portions 16 of the housing 10, and the slider moving shafts 35 of the side plates 32 of the lever 30 are respectively fitted to the bearing portions 15 of the sliders 13. To fit. Thereby, as shown in FIG. 14, the lever 30 is attached to the wire cover 20, and the assembly of the lever-type connector 1 is completed.

Thus, in the lever type connector 1, the hood part 25 is provided in the suppression part 22. FIG. Therefore, when the operator attaches the lever 30 to the housing 10 again, it is not necessary for the operator to widen the front ends of the side plates 32. That is, when the operator pushes the lever 30 toward the front side of the wire cover 20, the hood portion 25 of the restraining portion 22 of the wire cover 20 has a gap between the side plates 32 in the vertical direction of the restraining portion 22 of the wire cover 20. The front ends of the side plates 32 are pushed and expanded so as to be the same as the thickness.
Therefore, according to the lever connector 1, when the lever 30 is attached to the housing 10 again, it is possible to prevent an operator from excessively expanding the tip of the lever 30 and to prevent the lever 30 from being damaged. It becomes.

Next, the operation of the lever type connector 1 will be described.
In the lever-type connector 1 in a state where the assembly shown in FIG. 14 is completed, when the lever 30 is rotated toward the front side, the slider 13 is moved in a direction to be accommodated in the slider accommodating groove 12 of the housing 10. Further, when the lever 30 is rotated toward the rear side, the slider 13 is moved in a direction to exit from the slider receiving groove 12 of the housing 10.

When fitting the lever connector 1 and the mating connector, first, as shown in FIG. 18, the lever 30 is rotated to the final position on the rear side. The lever 30 that has been rotated to the final position on the rear side is in a state that cannot be further rotated toward the rear side by the restraining unit 22. Further, the lever 30 rotated to the final position on the rear side is locked by the locking convex portion 28 of the main body portion 21 of the wire cover 20 on the side surface of the notch portion 39 of the both side plates 32 of the lever 30, respectively. It will be in the state where rotation to the front side was blocked. Further, when the lever 30 is rotated to the final position on the rear side, the slider 13 is moved in a direction to exit from the slider receiving groove 12 of the housing 10, and the cam pin provided in the mating connector is inserted into the cam groove of the slider 13. It becomes possible.
Then, with the lever 30 rotated to the final position on the rear side, the cam pins provided on the mating connector are inserted into the plurality of cam grooves of the slider 13 to temporarily fit the lever connector 1 and the mating connector. Match.

  Next, the lock of the lever 30 by the locking convex portion 28 of the main body portion 21 of the wire cover 20 is released, and the lever 30 rotated to the final position on the rear side is rotated toward the front side. When the lever 30 is rotated toward the front side, the slider 13 is moved in a direction to be accommodated in the slider accommodating groove 12 of the housing 10, whereby a plurality of cam grooves of the slider 13 are respectively provided in the mating connector. Pull the cam pin back. Thereby, the plurality of contacts accommodated in the housing 10 of the lever-type connector 1 are fitted into the contacts accommodated in the mating connectors.

  Then, as shown in FIGS. 19 and 20, when the lever 30 is rotated to the final position on the front side, the fitting of the lever-type connector 1 and the mating connector is completed. The lever 30 rotated to the final position on the front side cannot be rotated further forward because the side surfaces of the notch portions 39 of the side plates 32 are in contact with the back surfaces of the fixing portions 29 of the wire cover 20. It is in a state. Further, as shown in FIG. 20, the lever 30 rotated to the final position on the front side is prevented from rotating to the rear side when the lock piece 27b of the lock member 27 is engaged with the concave portion 33a of the connecting portion 33. It becomes a state.

  On the other hand, when releasing the fitting between the lever-type connector 1 and the mating connector, the lever 30 is unlocked by the lock member 27 of the wire cover 20 and the lever 30 rotated to the final position on the front side is moved to the rear. Rotate to the side. When releasing the lock of the lever 30 by the lock member 27 of the wire cover 20, the release protrusion 27c of the lock member 27 is pushed in, and the leaf spring 27a is bent inward, whereby the lever 30 of the lock piece 27b is bent. The locking of the connecting portion 33 to the concave portion 33a is released.

Then, when the lever 30 is rotated toward the rear side, the slider 13 is moved in a direction to exit from the slider receiving groove 12 of the housing 10, so that the plurality of cam grooves of the slider 13 are provided in the mating connectors. Push the cam pin forward. Thereby, fitting with the contact accommodated in the housing 10 of the lever-type connector 1 and the contact accommodated in the other party connector is cancelled | released.
Then, as shown in FIG. 18, when the lever 30 is rotated to the final position on the rear side, the release of the fitting between the lever-type connector 1 and the mating connector is completed.

DESCRIPTION OF SYMBOLS 1 Lever type connector 10 Housing 11 Contact accommodation hole 12 Slider accommodation groove 13 Slider 15 Bearing part 16 Bearing part 16a Latch arm 17 Fixing piece 17a Fixing convex part 20 Wire cover 21 Main body part 22 Suppression part 24 Electric wire outlet 25 Hood part 27 Lock member 27a Leaf spring 27b Lock piece 27c Release convex part 28 Lock convex part 29 Fixing part 29a Fixing groove part 29b Latch arm 30 Lever 32 Side plate 33 Connecting part 33a Concave part 34 Shaft part 35 Slider moving shaft 37 Connecting plate 37a Concave part 37b Convex part 38 Plane part 39 Notch part 50 First taper part 50a Slope 50b Slope 51 Second taper part

Claims (1)

A housing that houses the contacts;
A wire cover that is attached to the back side of the housing and covers an electric wire connected to a contact accommodated in the housing;
A lever that has a pair of side plates and a connecting portion that connects the side plates to each other, and is formed in a U-shape;
With
A lever-type connector attached so that the lever can be rotated with respect to the housing in a state where the lever covers the back side of the wire cover and the wire cover is sandwiched in the thickness direction by the both side plates. Because
A lever-type connector, wherein a taper portion that gradually decreases in thickness toward the outside is formed on the back side of the wire cover.

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