JP6246646B2 - Lever type connector - Google Patents

Description

  The present invention relates to a lever-type connector for fitting a pair of connectors by operating a lever.

A multipolar electrical connector requires a large force when fitting and releasing the connectors. For this reason, a lever-type connector that uses the boosting effect of the lever to engage and release the mating connector is used (for example, Patent Document 1). In the lever-type connector, the lever is supported by one housing of a pair of connectors fitted to each other. A typical lever is a U-shaped member having a pair of side plates and a connecting portion for connecting these side plates to each other. By inserting fulcrum holes provided in both side plates into fulcrum shafts provided in the housing, the lever rotates in a normal direction. It is supported rotatably in both directions.
When the operator operates the connecting portion (which becomes the force point) which is the distal end side (the side away from the fulcrum) of the lever, the two are mutually connected between the pair of connectors from the action point provided near the fulcrum of the lever. A force in the direction of approaching or separating (this force is referred to as boost) is applied. With this boost, the pair of connectors can be fitted and released with a smaller operating force.

The lever-type connector of Patent Document 1 includes a housing that accommodates a plurality of contacts, a wire cover that is attached to the back side of the housing, and a lever that is rotatably attached to the wire cover. And the lock member formed in the cantilever shape which prevents rotation of a lever is provided in the back surface of the wire cover. When the lever is mated with the mating connector, the lever is rotated from the mating start position to the mating completion position and is locked to the lock member at the mating completion position, thereby restricting rotation in the reverse direction.
In the lever-type connector of Patent Document 1, in order to release the mating with the mating connector, the lock member is retracted from the lever rotation locus to release the lock, and then rotated to the mating start position.

JP 2009-252488 A

The operation to unlock the lever is usually performed manually by an operator, but careful operation is required so that the fingertip is not caught in the space formed between the lock member and the lever when the lock member is pushed in. The
The present invention has been made based on such a problem, and an object of the present invention is to provide a lever-type connector with high operability that can easily release the lock of the lever without careful operation as described above. And

For this purpose, the lever-type connector of the present invention includes a housing that holds a plurality of contacts, a wire cover that is attached to the housing and has a cover-side latching portion that is displaced by elasticity, and a pair of side plates, A connecting portion that connects the pair of side plates; and a lever that is rotatably supported by the wire cover, the locking portion being provided on the connecting portion. An elastic arm formed toward the back of the lever, a lever side locking portion that locks the lever operation by being locked to the cover side locking portion, and a lock operation to release the lock, And an operation portion provided on the elastic arm.
With the above configuration, in the unlocking operation of the lever-type connector according to the present invention, the operation unit and the cover side latching unit are between the operation unit and the cover side latching unit until the lock is released after the pushing of the operation unit is started. There is no space. Further, the boundary between the operation unit and the cover side locking unit is hidden by the operation unit when viewed from the direction in which the operation unit is pushed. Therefore, during the unlocking operation, it is possible to avoid the possibility that the fingertip that operates the operation unit enters between the operation unit and the cover-side locking unit and is pinched, and the operability of unlocking can be improved.

The cover-side latching portion of the lever-type connector of the present invention includes a cover-side first latching portion and a cover-side provided at each of the first position and the second position that are spaced apart in the rotation direction of the lever. a second locking portion, Ru comprising a.
With the lever-type connector having the above-described configuration, the lever can be locked at the first position and the second position, and unlocking at each position can be easily performed.

It is preferable that the lever side latching part of the lever type connector of this invention is provided in the front-end | tip of an elastic arm with an operation part.
By providing the lever side locking portion together with the operation portion at the tip of the elastic arm, the force applied by the operator when unlocking the lever can be reduced, so that the lever can be efficiently unlocked.

In the lever-type connector in which the lever-side locking portion is formed at the tip of the elastic arm together with the operation portion, the lever-side locking portion includes the lever-side first locking portion and the lever-side second locking that are arranged in the rotation direction of the lever. includes a part, and in the first position, the first locking portion first locking portion cover side and the lever side is locked, in the second position, the cover-side second locking portion and lever The side second locking portion is locked .
By providing the cover side first locking portion and the cover side second locking portion in the rotation direction of the lever, each locking portion can be shaped to match each lever side locking portion. Therefore, the shape of the cover side first locking portion is the same as or similar to the shape of the lever side first locking portion, and the shape of the cover side second locking portion is the same as the shape of the lever side second locking portion. Therefore, the operation feeling of the lever at each locking position can be made substantially the same.

In the lever-type connector of the present invention, the lever-side locking portion can be provided at a position offset in the rotation axis direction of the lever with respect to the operation portion.
Since the elastic arm must have elasticity, its thickness is set to be thin to some extent. If the lever side locking portion is provided at a position offset with respect to the operation portion, the thickness of the lever side locking portion can be increased regardless of the thickness of the elastic arm. In the locked state of the temporary locking position, the force with which the lever holds the wire cover can be increased.

In the lever-type connector provided at a position where the lever side locking portion is offset in the rotation axis direction of the lever with respect to the operation portion, the elastic arm has a folded portion that is folded back toward the connecting portion, and the folded portion It is preferable to provide an operation part at the tip of the.
The elastic arm is provided with a folded portion that is folded back to the connection portion side, and the operation portion is disposed on the connection portion side, whereby the front and rear of the operation portion are released. As a result, the operator can easily push the operating portion with his fingertip, and the operability of unlocking the lever can be improved.

Further, in the lever-type connector provided at a position where the lever side locking portion is offset in the rotation axis direction of the lever with respect to the operation portion, the lever side locking portion includes the lever side first locking portion and the lever side first locking portion. The first elastic arm and the second elastic arm, each of which is provided with an interval in the rotation direction of the lever, and each of which is provided with an operation unit, In the first position, the cover side first locking portion and the lever side first locking portion are locked, and in the second position, the cover side second locking portion and the lever side second locking portion are locked. It is preferred that
With the above configuration, even in a lever type connector provided at a position where the lever side locking portion is offset in the rotation axis direction of the lever with respect to the operation portion, each locking portion is used as each lever side locking portion. Since it can be set as a combined shape, the operational feeling of the lever at each locking position can be made the same.

  According to the present invention, the cover-side latching portion and the lever-side latching portion are provided by providing the lever with the cover-side latching portion and the lever-side latching portion that forms the lock mechanism, and operating the lock member. The lock can be released without forming a space between them. This makes it easier to unlock the lever without pinching your fingertip between the cover-side locking part and the lever-side locking part without careful operation, improving the unlocking operability. Can be made.

It is a perspective view which shows the lever type connector in 1st Embodiment, (a) is a lever in a fitting latching position, (b) is a lever in a temporary latching position. It is a rear view which shows a lever type connector, (a) is a lever in a fitting locking position, (b) is a lever in a temporary locking position. (A) is the IIIa-IIIa arrow directional cross-sectional view of FIG. 2, (b) is the IIIb-IIIb arrow directional cross-sectional view of FIG. (A) is the IVa-IVa arrow directional cross-sectional view of FIG. 2, (b) is the elements on larger scale of (a). (A) is the Va-Va arrow directional cross-sectional view of FIG. 2, (b) is the elements on larger scale of (a). It is a perspective view which shows the lever type connector in 2nd Embodiment, (a) is a lever in a fitting latching position, (b) is a lever in a temporary latching position. It is a figure which shows the lever in 2nd Embodiment, (a) is the perspective view seen from the lower side, (b) is a top view. It is a figure which shows the state which the lever shown in FIG. 7 locked in the fitting locking position, (a) is a VIIIa-VIIIa arrow sectional view, (b) is a VIIIb-VIIIb arrow sectional view. is there. It is a figure which shows the state which the lever shown in FIG. 7 locked in the temporary latching position, (a) is IXa-IXa arrow directional cross-sectional view, (b) is IXb-IXb line | wire cross-sectional view. . It is a perspective view which shows the lever type connector in 3rd Embodiment. (A) shows a state in which the lever is locked at the fitting locking position, and (b) shows a state in which the lever is locked at the temporary locking position. It is a figure which shows the lever concerning 3rd Embodiment, (a) is the perspective view seen from the lower side, (b) is a top view. It is a figure which shows the state which the lever shown in FIG. 11 locked in the fitting locking position, (a) is XIIa-XIIa arrow sectional drawing, (b) is XIIb-XIIb arrow sectional drawing. is there. It is a figure which shows the state which the lever shown in FIG. 11 locked in the temporary latching position, (a) is XIIIa-XIIIa arrow sectional drawing, (b) is XIIIb-XIIIb arrow sectional drawing. .

Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings.
[First Embodiment]
As shown in FIGS. 1 to 3, the lever connector 1 includes a housing 10 including a first housing 20 and a second housing 30, a wire cover 40 attached to the back side of the housing 10, and a wire cover 40. And a lever 50 pivotally supported so as to be capable of normal rotation and reverse rotation.
In the lever-type connector 1, in the length direction X shown in FIG. 1, the portion on the right side of FIG. 1 is defined as the front and the portion on the left side is defined as the rear, and in the Z direction shown in FIG. The side on which the cover 40 is mounted is defined as the wire drawing side, and the side facing the wire drawing side is defined as the fitting side. Further, the lever 50 rotates forward from the temporary locking position (FIG. 1 (b)) toward the fitting locking position (FIG. 1 (a)), and vice versa. Rotation from FIG. 1A toward the temporary locking position (FIG. 1B) is defined as reverse rotation.

[First housing 20]
As shown in FIGS. 2 and 3, most of the first housing 20 is housed and held in the second housing 30, and includes a cavity that houses and holds a plurality of female contacts (not shown).
The first housing 20 is made of resin and is integrally formed by, for example, injection molding. The same applies to the second housing 30, the wire cover 40, and the lever 50 described later.

[Second housing 30]
The second housing 30 has slider receiving grooves 32 and 32 formed on both sides in the width direction Y (left and right sides in FIG. 2). The slider 33 is accommodated in each of the slider accommodating grooves 32 and 32 so as to be movable in the length direction X between the temporary locking position and the fitting locking position.
As shown in FIG. 3, the slider 33 is formed in a flat plate shape and extends along the length direction X. The slider 33 is provided with two cam grooves 33a, 33a for extending and extruding the cam pins provided in the mating connector substantially along the length direction X.
The slider 33 is formed with a rack 34 that meshes with the pinion 55 of the lever 50 toward the drawer side.

[Wire cover 40]
The wire cover 40 includes a cover body 41 that covers a plurality of electric wires (not shown) connected to a plurality of female contacts held by the first housing 20. These electric wires are pulled out to the outside through a pull-out port 42 provided in front of the cover main body 41 in a bundled state.
The wire cover 40 is attached to the second housing 30 on the drawer side.
Although only one side is shown in FIG. 3, fulcrum shafts 47 that rotatably support the lever 50 through the fulcrum holes 53 of the lever 50 are formed on the cover body 41. .
Further, the cover body 41 has a first locking portion (cover side first locking portion) 43 for preventing the lever 50 from rotating from the fitting locking position to the temporary locking position on the back surface 41a. A second locking portion (cover-side second locking portion) 44 that prevents the lever 50 from rotating from the temporary locking position toward the fitting locking position is provided. The second locking portion 44 is arranged with a space in the rotation direction of the lever 50 with respect to the first locking portion 43.
The 1st latching | locking part 43 has a beam-like form in which a fixed end is provided in the back side, and is provided with the latching protrusion 45 at the front-end | tip located as shown in FIG.1 (b). . On the other hand, the second locking portion 44 has a beam-like form with a fixed end provided at the front, and has a locking protrusion 46 at the rear end as shown in FIG. Yes. Both the first locking portion 43 and the second locking portion 44 are displaced by elasticity.
The first locking portion 43 and the second locking portion 44 form a locking mechanism with a locking portion 64 of the lever 50 described later, and restrict the rotation of the lever 50.
As shown in FIG. 4B and FIG. 5B, the locking protrusion 45 and the locking protrusion 46 have similar dimensions and shapes, although their orientations are different.
The cover body 41 is provided at the front end so that a flat stopper 48 protrudes forward. The stopper 48 supports the lever 50 so that the lever 50 is not pushed further beyond the fitting locking position.
Further, a plurality of protective plates 49 are erected on the back surface 41a of the cover body 41 so as to sandwich the first locking portion 43 and the second locking portion 44 therebetween. The protection plate 49 prevents the locking protrusions 45 and 46 from being damaged due to the electric wire being caught by the locking protrusions 46.

[Lever 50]
As shown in FIGS. 1, 4 and 5, the lever 50 includes a pair of side plates 51, 51 arranged in the width direction Y, and a connecting portion 52 that connects the pair of side plates 51, 51 at the tip thereof. It is almost U-shaped.
Each side plate 51, 51 is formed with a fulcrum hole 53 for supporting the lever 50 by inserting the fulcrum shaft 47 of the wire cover 40. The fulcrum hole 53 is formed through the thickness direction of the side plate 51.
A pinion 55 that meshes with the rack 34 provided on the slider 33 is formed around the fulcrum hole 53 of each of the side plates 51 and 51.
The lever 50 and the slider 33 act as a booster mechanism. When the lever 50 is rotated forward and backward, the slider 33 reciprocates in the length direction X as shown in FIGS. 3 (a) and 3 (b). Thereby, the lever-type connector 1 can be engaged with or released from the mating connector.

The connecting portion 52 is provided with a lock arm (lock portion) 60 on the inner side surface 52a and a pair of protective plates 69a and 69b (see FIG. 2B) on both sides of the lock arm 60.
The lock arm 60 has the two functions of locking the lever 50 to the wire cover 40 and releasing the lock. The lock arm 60 is provided in a cantilever shape on the connecting portion 52, an elastic arm 62 formed from the connecting portion 52 toward the back surface 41 a of the wire cover 40, and a functional head 61 provided at the tip of the elastic arm 62. It is equipped with. The functional head 61 includes operation portions 63a and 63b and a locking portion (lever side locking portion) 64.

When releasing the lock of the lever 50, the operation parts 63a and 63b are pushed in and operated by the operator. The operation part 63 a and the operation part 63 b are provided at symmetrical positions around the elastic arm 62, and are provided along the rotation direction of the lever 50.
When the lever-type connector 1 is fitted to the mating connector and the lever 50 is placed at the fitting locking position, the operation portion 63b is hidden by the functional head 61 as shown in FIG. End up. However, since the periphery of the operation unit 63a is open, the operator can perform an operation of pushing the operation unit 63a downward in the drawing. On the other hand, when the lever-type connector 1 is released from the mating connector and the lever 50 is placed in the temporary locking position, the operation portion 63a is hidden by the functional head 61 as shown in FIG. End up. However, since the periphery of the operation unit 63b is open, the operator can perform an operation of pushing the operation unit 63b backward (toward the left in the figure).

  The elastic arm 62 is not unnecessarily unlocked when the lever 50 is in the fitting locking position and the temporary locking position, and the operator can push the operation parts 63a and 63b without difficulty when releasing the lock. The elastic force is set in consideration of

The locking portion 64 is for locking the lever 50 and the wire cover 40. As shown in FIGS. 4 and 5, the locking portion 64 and the locking groove (lever side first locking portion) 65a for temporary locking are temporarily connected. A locking groove (lever-side second locking portion) 65b for stopping is provided.
The locking groove 65 a and the locking groove 65 b have a mirror-symmetric shape, are symmetrical positions with the partition wall 67 interposed therebetween, and are formed side by side in the rotation direction of the lever 50. The partition wall 67 bears part of the locking grooves 65a and 65b. The partition wall 67 moves along the rotation trajectory T along the back surface 41a of the wire cover 40 when the lever 50 rotates forward or reverse (FIGS. 4A and 5A).

  Further, as shown in FIG. 4B, the shape of the locking groove 65a is similar to the shape of the tip of the locking projection 45, and the shape of the locking groove 65b is as shown in FIG. 5B. Is similar to the shape of the tip of the locking projection 46.

  In the fitting locking position, as shown in FIG. 4, the lever 50 is locked to the wire cover 40 by fitting the tip of the locking protrusion 45 into the locking groove 65 a. Further, at the temporary locking position, as shown in FIG. 5, the lever 50 is locked to the wire cover 40 by inserting the tip of the locking protrusion 46 into the locking groove 65b. Thus, the rotation of the lever 50 is restricted at the temporary locking position or the fitting locking position.

  The protection plates (69a, 69b) prevent the operation parts 63a, 63b from malfunctioning or being damaged due to the electric wires being caught by the operation parts 63a, 63b.

[Action / Effect]
The operation and effect of the lever connector 1 according to this embodiment will be described.
The lever-type connector 1 fitted to the mating connector is rotated by the lever 50 from the mating locking position (FIG. 1 (a)) to the temporary locking position (FIG. 1 (b)). Is released from the mating.
In the fitting locking position shown in FIG. 4, when the operating portion 63 a is pushed downward with a fingertip to release the lock of the lever 50, the locking protrusion 45 is displaced backward. When the operation portion 63 a is pushed in until the tip of the partition wall 67 does not interfere with the locking projection 45, the locking projection 45 is removed from the rotation trajectory T of the lever 50. Then, the partition wall 67 gets over the locking projection 45 and the lever 50 is unlocked. The lever 50 is rotated to the temporary locking position so that the protective plate 69 extends along the inner side of the protective plate 49, and is locked by fitting the locking projection 46 into the locking groove 65b. The lever 50 is temporarily locked. Is done.

In the unlocking operation at the fitting locking position described above, the locking protrusion 45 is in contact with the operation portion 63a from when the operation portion 63a is pushed in until the lock is released. There is no space between the locking projections 45. Further, the boundary between the operation portion 63a and the locking projection 45 is hidden behind the operation portion 63a when the operation portion 63a is covered when viewed from the direction in which the operation portion 63a is pushed.
Therefore, the lever-type connector 1 can avoid the possibility that the fingertip that operates the operation portion 63a enters between the operation portion 63a and the locking projection 45 and is pinched during the unlocking operation.

On the other hand, in the temporary locking position, the lever 50 is locked by the locking protrusion 46 fitting into the locking groove 65b and the rotation of the partition wall 67 being restricted by the locking protrusion 46.
In order to release the lock of the lever 50 at the temporary locking position shown in FIG. 5, when the operating portion 63b is pushed backward with the fingertip, the locking projection 46 is displaced downward. When the operating portion 63b is pushed in until the tip of the partition wall 67 does not interfere with the locking projection 46 and the lever 50 is rotated forward, the partition wall 67 gets over the locking projection 46 and the lock of the lever 50 is released.

In the unlocking operation at the temporary locking position, there is no space between the operating portion 63b and the locking projection 46 until the lock is released after the pushing of the operating portion 63b is started. When viewed from the direction in which the operation unit 63b is pushed, the operation unit 63b is hidden behind the operation unit 63b.
Therefore, the lever-type connector 1 can avoid the possibility that the fingertip is pinched between the operation portion 63b and the locking projection 46 in the temporary locking position as in the unlocking operation at the fitting locking position.

  Since the lock arm 60 (elastic arm 62) is provided in a cantilever shape on the connecting portion 52, when the elastic arm 62 is bent with the portion connected to the connecting portion 52 as a fixed end, the elastic arm The amount of displacement at the tip of 62 is the largest. Further, since the distal end of the elastic arm 62 is farthest from the fixed end, if the distal end is pushed in, the operation force required to deflect the same amount of displacement can be minimized. Therefore, by providing the operation portions 63a and 63b at the tip of the elastic arm 62, the lever 50 can be efficiently unlocked.

When the temporary locking position and the fitting locking position of the lever 50 in the lever-type connector 1 are switched and the operating direction of the lever 50 is reversed, the lever is locked at the temporary locking position and the fitting locking position. If the operation feeling is different, the worker feels uncomfortable.
The lever-type connector 1 according to the present embodiment has the shape of the tip of the locking projection 45 and the shape of the first locking groove 65, and the shape of the tip of the locking projection 46 and the shape of the second locking groove 66, respectively. Therefore, the operational feeling received when the lever 50 is locked can be made the same at the temporary locking position and the fitting locking position. Even if the fitting engagement position and the temporary engagement position of the lever 50 are reversed by making the operation feeling of the locking operation the same at the engagement engagement position and the temporary engagement position, the operator does not feel uncomfortable. Can be locked.
In addition, when reversing the operation direction of the lever 50, the slider is replaced with a reversal of the inclination direction of the cam groove.

[Second Embodiment]
The lock arm (lock portion) 60 described in the first embodiment has two functions of a function of locking the lever 50 to the wire cover 40 and a function of releasing the lock.
The lock part 700 of the lever 70 of the lever-type connector 3 in this embodiment is different from the first embodiment in that it has a function of locking and a function of releasing locking independently.
Hereinafter, the present embodiment will be described with reference to FIGS. 6 to 9 focusing on differences from the first embodiment. In addition, the same code | symbol is attached | subjected to the structure similar to 1st Embodiment, and description is abbreviate | omitted.
As shown in FIGS. 6 and 7, the lever 70 of the lever-type connector 3 includes a lock portion 700 in the connecting portion 52. The lock part 700 includes operation arms 70a and 70b and locking parts 74a and 74b.
The operation arm 70a is provided in a cantilever shape on the connecting portion 52, and includes an elastic arm 72a and an operation portion 73a provided at the tip of the elastic arm 72a. The operation arm 70b has a similar configuration.
The elastic arm 72 a is connected to the upper surface of the connecting portion 52, and the elastic arm 72 b is connected to the lower surface of the connecting portion 52. The elastic arm 72b is provided at an interval in the rotation direction with respect to the elastic arm 72a.
The operation portion 73a is formed on the upper surface of the distal end of the elastic arm 72a, and the operation portion 73b is formed on the lower surface of the distal end of the elastic arm 72b.
As shown in FIG. 8, the operation arm 70 a is formed so that the tip of the elastic arm 72 a is in contact with the inclined portion 45 b of the first locking protrusion 45 at the fitting locking position. On the other hand, as shown in FIG. 9, the operation arm 70 b is formed such that the tip of the elastic arm 72 b is in contact with the inclined portion 46 b of the locking projection 46 at the temporary locking position.

Locking portions 74a and 74b are provided on the inner surfaces of the protection plates 69a and 69b. The protection plates 69a and 69b are provided in the width direction Y with a predetermined distance from the operation arms 70a and 70b. Therefore, the locking portions 74a and 74b are provided at positions offset in the rotation axis direction of the lever 50 with respect to the operation portions 73a and 73b.
The locking portion 74a includes a support wall 75a and a protrusion 76a formed at the tip of the support wall 75a. The protrusion 76 a is formed so as to protrude toward the wire cover 40. The locking portion 74 b has the same configuration as the locking portion 74 a and includes a support wall 75 b and a protrusion 76 b that protrudes toward the wire cover 40.
The lever 50 is locked when the upper surfaces 77a and 77b (lever side first locking portions) of the protrusions 76a and 76b are locked to the locking protrusion 45 at the fitting locking position. On the other hand, the lever 50 is locked when the lower surfaces 78a and 78b (lever side second locking portions) of the protrusions 76a and 76b are locked to the locking protrusions 46 at the temporary locking position.
Further, the shape of the portion where the locking projection 45 is locked is similar to the shape of the portion where the locking projection 46 is locked.
The wall thickness of the support walls 75 a and 76 b is set to be thicker than that of the elastic arm 72.

  As described above, in the lever-type connector 3, the first locking projection 45 is provided with the operation portion 73 a provided on the elastic arm 72 a and the projections 76 a and 76 b provided at positions offset from the operation portion 73 a in the fitting and locking position. In the temporary locking position, the second locking projection 46 is configured to be sandwiched between the operation portion 73b provided on the elastic arm 72b and the projections 76a and 76b.

[Action / Effect]
The second embodiment has the following operations and effects by providing the lever 70 with a lock portion 700 that has a function of locking and a function of releasing the locking independently.
The lever-type connector 3 is released from the mating connector when the lever 70 is rotated from the fitting locking position (FIG. 6A) to the temporary locking position (FIG. 6B). .
When the operating portion 73a is pushed in with the fingertip to release the lock of the lever 70 at the fitting locking position shown in FIG. 8, the locking projection 45 is displaced rearward (left side in the drawing). Then, the protrusions 76a and 76b get over the locking protrusion 45 and the lever 70 is unlocked. At this time, even if the operation arm 70a is displaced, the operation arm 70a does not directly interfere with the locking portions 74a and 74b.
Further, the operation portion 73a and the locking projection 45 are in contact with each other until the lock is released, and no space is generated between the operation portion 73a and the locking projection 45. Further, the boundary between the operation portion 73a and the locking projection 45 is hidden behind the operation portion 73a when viewed from the direction in which the operation portion 73a is pushed.
On the other hand, when the lock is released at the temporary locking position, as shown in FIG. 9, when the operation portion 73b is pushed in with the fingertip, the locking projection 45 is displaced downward. Then, the protrusions 76a and 76b get over the locking protrusion 46 and the lever 70 is unlocked. Also in this case, the operation arm 70 b does not directly interfere with the locking portion 74, and no space is generated between the operation portion 73 a and the locking projection 45.
As described above, similarly to the first embodiment, it is possible to avoid a possibility that the fingertip is pinched between the operation portion 73a and the locking projection 45 in the unlocking operation.

  Moreover, in this embodiment, the latching | locking parts 74a and 74b provided with protrusion 76a, 76b are provided independently of the operation parts 73a and 73b. Therefore, the support walls 75a and 75b connected to the protrusions 76a and 76b can be formed thicker in the height direction Z than the elastic arm 62 supporting the locking portion 64 in the first embodiment. Therefore, the force with which the lever 70 holds the wire cover 40 can be increased in the locked state of the fitting locking position and the temporary locking position.

  Further, in this embodiment, the shape of the portion where the locking projection 45 is locked is similar to the shape of the portion where the locking projection 46 is locked, so that the operational feeling received when the lever 70 is locked is temporarily locked. The position and the fitting locking position can be substantially the same.

[Third Embodiment]
In the present embodiment, in order to provide a space before and after the operation portions 83a and 83b, the elastic arms 82a and 82b of the present embodiment extend the elastic arms 72a and 72b of the lever 70 of the second embodiment and have a cross section. It is formed so as to correspond to the one bent into a U-shape.
Hereinafter, the present embodiment will be described with reference to FIGS. 10 to 13 focusing on differences from the second embodiment.
As shown in FIGS. 10 and 11, the lever 80 of the lever-type connector 5 of the present embodiment includes a lock portion 800. The lock portion 800 includes operation arms 80a and 80b and locking portions 84a and 84b.
The operation arm 80a includes an elastic arm 82a and an operation unit 83a provided at the tip of the elastic arm 82a. The operation arm 80b has a similar configuration.
As shown in FIG. 12, the elastic arms 82 a and 82 b extend from the connecting portion 52 toward the wire cover 40 and are reversed to the connecting portion 52 side, so that the operation portions 83 a and 83 b are substantially connected to the wire cover 40 and the connecting portion 52. It is formed so as to be located in the middle. Therefore, the front and rear of the operation parts 83a and 83b are opened. Further, the distance between the elastic arms 82a and 82b in the height direction Z is narrower than the elastic arms 72a and 72b in the second embodiment.
The elastic arms 82a and 82b are bent to form curved portions (folded portions) 87a and 87b. The bending portion 87b is formed so as to recede toward the connecting portion 52 side with respect to the bending portion 87a in the length direction X.
By providing the operation portions 83a and 83b substantially in the middle of the wire cover 40 and the connecting portion 52, a gap is generated between the protection plates 69a and 69b and the elastic arms 82a and 82b. Support walls 85a and 85b are formed in the gap, and the support walls 85a and 85b are formed thicker in the height direction Z than the support walls 75a and 75b of the second embodiment.

In the fitting locking position, the lever 80 is locked by the protrusions 86 a and 86 b being locked by the locking protrusion 45, and a part of the curved portion 87 a is in contact with the locking protrusion 45. On the other hand, in the temporary locking position, the protrusions 86 a and 86 b are locked to the locking protrusion 46, whereby the lever 80 is locked and a part of the curved portion 87 b is in contact with the locking protrusion 46.
The shape of the portion where the locking projection 45 is locked is similar to the shape of the portion where the locking projection 46 is locked.

[Action / Effect]
In addition to the effects obtained in the second embodiment, the third embodiment has the following effects by arranging the operation parts 83a and 83b at positions where the front and rear are opened as described above.
The lever-type connector 5 is released from the mating connector when the lever 80 is rotated from the fitting locking position (FIG. 10A) to the temporary locking position (FIG. 10B). .
In the lever-type connector 5 shown in FIG. 12, when the operating portion 83a is pushed downward with the fingertip at the fitting and locking position, the curved portion 87a is displaced downward following the operation portion 83a, and the locking protrusion 45 is moved backward. Displace. Then, the lock is released and the lever 80 can rotate.
On the other hand, when the operation portion 83b is pushed backward in the temporary locking position, the locking projection 46 is displaced downward by the curved portion 87b, and the lock is released.
In the second embodiment, since the operation portion 73 is formed at the tip of the elastic arm 72 and is provided at a position close to the wire cover 40, the back surface 41a of the wire cover 40 becomes an obstacle when releasing the lock. The operation parts 73a and 73b must be pushed only at the tip of the fingertip.
In this embodiment, since there is a space before and after the operation units 83a and 83b, the wire cover 40 does not become an obstacle when releasing the lock, and the operation units 83a and 83b can be pushed in with the fingertips. Therefore, by providing a space before and after the operation parts 83a and 83b, the operability of unlocking can be improved compared to the second embodiment.

In addition, since the curved portions 87a and 87b are in contact with the locking projections 45 and 46 in the unlocking operation, no space is generated between the elastic arm 82 and the locking projections 45 and 46. Furthermore, the operation parts 83a and 83b for pushing with a fingertip are provided in the position away from the boundary of the curved parts 87a and 87b and the latching protrusions 45 and 46.
Therefore, similarly to the first embodiment and the second embodiment, in the operation of releasing the lock, it is avoided that the fingertip that operates the operation portions 83a and 83b may enter between the bending portions 87a and 87b and the locking projection 45. it can.

  Further, in this embodiment, the shape of the portion where the locking projection 45 is locked is similar to the shape of the portion where the locking projection 46 is locked, so that the operational feeling received when the lever 80 is locked is temporarily locked. The position and the fitting locking position can be substantially the same.

Although the present embodiment has been described above, the configuration described in the above embodiment can be selected or changed to other configurations as appropriate without departing from the gist of the present invention. It is.
For example, in the present embodiment, the lever-type connector 1 provided with two locking projections 45 and 46 has been described. However, the present invention is also applicable to a lever-type connector provided with only one of the locking projections 45 and 46. it can.
Further, the functional head 61 of the first embodiment is formed with two locking grooves such as a locking groove 65a corresponding to fitting locking and a locking groove 65b corresponding to temporary locking. The stop groove 65a and the lock groove 65b can be used in common, and one lock groove can handle both fitting lock and temporary lock. Even when the locking groove is formed in this way, it is possible to enjoy the effect of avoiding that the fingertip that operates the operation unit is sandwiched between the operation unit and the locking projection during the unlocking operation. .
Furthermore, in the second embodiment, the locking portions 74a and 74b are provided on both sides of the operation arms 70a and 70b, but can be provided only on one side. However, the lever 70 can hold the wire cover 40 in a more stable state when the locking portions 74a and 74b are provided on both sides. The same applies to the third embodiment.

1, 3, 5 Lever type connector 10 Housing 20 First housing 30 Second housing 32 Slider receiving groove 33 Slider 33a Cam groove 34 Rack 40 Wire cover 41 Cover body 41a Back surface 42 Drawer outlet 43 First locking portion (cover side first 1 locking part)
44 Second locking part (cover side second locking part)
45, 46 Locking projections 45b, 46b Inclined portion 47 Support point shaft 48 Stopper 49 Protection plate 50 Lever 51 Side plate 52 Connection portion 52a Inner side surface 53 Support point hole 55 Pinion 60 Lock arm (lock portion)
61 Function head 62 Elastic arm 63a, 63b Operation part 64 Locking part (lever side locking part)
65a Locking groove (lever side first locking part)
65b Locking groove (Lever side second locking part)
67 Partition walls 69, 69a, 69b Protection plates 70a, 70b Operating arms 72a, 72b Elastic arms 73a, 73b Operating portions 74a, 74b Locking portions 75a, 75b Support walls 76a, 76b Upper surfaces 78a, 78b Lower surfaces 82a, 82b Elastic arms 83a, 83b Operation portions 84a, 84b Locking portions 85a, 85b Support walls 86a, 86b Projections 87a, 87b Curved portions (folded portions)
700,800 Lock part X Length direction Y Width direction Z Height direction T Rotation locus

Claims (5)

A housing for holding a plurality of contacts;
A wire cover attached to the housing and having a cover side locking portion on its back surface that is displaced by elasticity;
A lever having a pair of side plates, a connecting portion connecting the pair of side plates, and a lock portion provided in the connecting portion, and the pair of side plates being pivotally supported by the wire cover;
The lock part is
An elastic arm formed from the connecting portion toward the back surface of the wire cover;
A lever side locking portion that locks the operation of the lever by being locked with the cover side locking portion;
And releasing the lock by pushing operation is performed, Bei give a, an operation portion provided on said resilient arm,
The cover side locking portion is
A cover-side first locking portion and a cover-side second locking portion provided at each of a first position and a second position that are arranged with an interval in the rotation direction of the lever,
The lever side locking portion is
A lever side first locking portion and a lever side second locking portion arranged in the rotation direction of the lever,
In the first position,
The cover side first locking portion and the lever side first locking portion are locked,
In the second position,
The cover side second locking portion and the lever side second locking portion are locked,
This is a lever type connector. The lever side locking portion is
Along with the operation unit, provided at the tip of the elastic arm,
The lever type connector according to claim 1 . The lever side locking portion is
Provided at a position that is offset in the rotational axis direction of the lever with respect to the operation unit.
The lever type connector according to claim 1 . The elastic arm has a folded portion that is folded back toward the connecting portion, and includes the operation portion at a tip of the folded portion.
The lever type connector according to claim 3 . The elastic arm is
A first elastic arm and a second elastic arm, which are provided at intervals in the rotation direction of the lever, and each of which is provided with the operation portion;
In the first position,
The cover side first locking portion and the lever side first locking portion are locked,
In the second position,
The cover side second locking portion and the lever side second locking portion are locked,
The lever type connector according to claim 3 or 4 .

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