JP2003317864A - Separation structure of connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a separation structure of a connector in which the number of constituting components is reduced, structure is simplified, size is made small, and yet separation of the connector can be made easily. <P>SOLUTION: A first connector housing 3 of a first connector 1 comprises a flexible lock arm 5 extending in the front and rear direction of the first connector housing 3. And the lock arm 5 and a second connector housing 10 of a second connector 2 comprise integrally a pair of pull-out assisting parts 9 and a pair of pull-out assisting taper faces 15 as a first and a second pull-out assisting means for generating a separating force in the direction of separating the first connector and the second connector, when the lock arm 5 is released of bending lock. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector detaching structure for detaching a first connector and a second connector that are engaged with each other.

[0002]

2. Description of the Related Art FIG. 6 is a perspective view showing a lever fitting type connector generally known in the past. The lever-fitting type connector A is a pair of connector housings 1 for mating with each other.
01 and the connector housing 102, and is fitted to the outer peripheral wall 101a of one connector housing 101,
A lever 103 for performing a detaching operation is rotatably provided.

The connector housing 101 is formed by molding a synthetic resin material, and as shown in FIG. 7, a plurality of terminal accommodating chambers 104 are provided inside the outer peripheral wall 101a.
Are formed. A spacer 105 is fitted in the connector housing 101 to prevent the terminal fitting (not shown) housed in the terminal housing chamber 104 from coming off. At the rear of the terminal accommodating chamber 104, a wire insertion tube portion 106 is continuously provided.

The lever 10 is provided on both sides of the outer peripheral wall 101a.
A support protrusion 107 for rotatably supporting 3 is provided. In addition, on both sides of the outer peripheral wall 101a, from the fitting side edge portion 101b of the outer peripheral wall 101a to the supporting protrusions 107.
The introduction groove 108 cut toward is formed to have an opening. Wedge-shaped locking projections 109, 10 are provided above and below the rear end of the outer peripheral wall 101a (on the side of the wire insertion port 101b) at positions symmetrical with respect to the line connecting the support projection 107 and the introduction groove 108.
9'is attached so that the tips 109a, 109a 'face diagonally rearward.

The other connector housing 102 is formed by molding a synthetic resin material similarly to the connector housing 101, and has a plurality of terminal fittings 110 fitted therein with terminal fittings in the connector housing 101.
Is housed. In addition, driven pins 111 are projectingly provided on both sides of the peripheral wall 102a.

The lever 103 is a support portion 103 on both sides.
A and 103a are connected to each other by an operation portion 103b, and are formed in a substantially gate shape. Then, by inserting the hole 112 provided in the support portion 103a into the support protrusion 107 of the connector housing 101, the connector housing 1
01 is mounted so as to be rotatable around the support protrusion 107 as an axis.

A cam groove 113 is provided inside the supporting portion 103a of the lever 103, and two flexible locking arms 114, 114 are provided inside the central portion of the operating portion 103b.
Is attached. Each of the flexible locking arms 114 is formed in a substantially L-shape, and the free end 114a is attached to the operating portion 1.
The base 114a is coupled to the operation portion 103b of the lever 103 in the direction of the direction 03b. A plate-shaped locking portion 115 is provided between the free ends 114b.

Next, both connector housings 10
The operation of the lever 103 and the lock mechanism when fitting the first and second parts will be described. The connector housing 101
2 is provided with two locking projections 109 and 109 ′, a case where the lever 103 is locked to one locking projection 109 will be described.

As shown in FIG. 8, the other connector housing 102 is brought close to the one connector housing 101, and the driven pin 111 of the other connector housing 102 is introduced into the introduction groove 108 of the one connector housing 101. Then, the lever 103 is positioned in the cam groove 113. Then, when the lever 103 is rotated in the direction of the arrow in this state, the driven pin 111 enters the one connector housing 101 along the cam groove 113 of the lever 103, and the both connector housings 101 and 102 are fitted to each other. To meet.

At this time, as shown in FIG. 9, the locking portion 115 of the flexible locking arm 114 provided on the lever 103.
However, the locking projection 109 of one connector housing 101
Abutting on the inclined surface portion 109b of. Further, when the lever 103 is further rotated in the direction of the arrow, as shown in FIG. 10, the flexible locking arm 114 bends, and the locking end 1 of the locking portion 115.
15a approaches the tip 109a of the locking projection 109.

When the lever 103 continues to rotate in the direction of the arrow, the locking end 115 a of the locking portion 115 is locked by the locking projection 10.
Get over the tip 109a of the No. 9. When the locking end 115a goes over the locking projection 109, the flexible locking arm 114 that has been bent upward is restored by its own elastic force, and as shown in FIG. 11, the locking of the locking portion 115 is stopped. The end 115a is engaged with the lower side of the locking projection 109, and the lever 103 is locked to the one connector housing 101.

Thereafter, when the lock of the lever 103 is released, as shown in FIG.
When the locking portion 115 of the lever 103 and the operating portion 103b of the lever 103 are pinched so as to be closed with fingers, the flexible locking arm 114 bends upward, and the locking end 115a of the locking portion 115 is the tip of the locking projection 109. The lever 103 can be rotated by being disengaged from the 109a. Then, when the lever 103 is rotated in the direction of the arrow in FIG. 12, a reverse operation of the fitting operation is performed, the driven pin 111 moves along the cam groove 113 of the lever 103, and the connector housing 101 on one side moves. The other connector housing 102 is detached.

[0013]

By the way, in the above-mentioned prior art, by rotating the lever 103 in the direction of the arrow in FIG. 12, the one connector housing 101 and the other connector housing 102 are made with a small force. You can leave. This is effective in recent years in efficiently disassembling wire harnesses for recycling.

However, the provision of the lever 103 leads to an increase in the number of constituent parts for each one of the connector housings 101, and there is a problem that the structure of the entire connector becomes complicated. Also, lever 1
The rotation of 03 occupies a space within the rotation range, resulting in a large-sized connector.

The present invention has been made in view of the above-mentioned circumstances, and the connector can be easily detached after reducing the number of constituent parts, simplifying the structure, and reducing the size. It is an object to provide a detachment structure of.

[0016]

According to a first aspect of the present invention, there is provided a detachment structure for a connector according to the present invention, wherein the first connector and the second connector are engaged with each other. The first connector housing of the first connector has a flexible lock arm extending in the front-rear direction of the first connector housing, and the lock arm and the second connector housing of the second connector are the lock arm. When the flexible lock is released, the first and second extraction assisting means for generating a detaching force in the detaching direction of the first connector and the second connector are integrally provided.

According to a second aspect of the present invention, there is provided a connector withdrawal structure according to the first aspect, wherein the first extraction assisting means has a pair of left and right protrusions at the rear portion of the lock arm. The second extraction assisting means is a pulling-out assisting portion, and the second pulling-out assisting means is inclined gradually higher toward the rear side from the front side in the front-rear direction of the second connector housing, is inserted into both left and right sides of the lock arm, and the lock arm is bent. In other words, the pair of pull-out auxiliary portions are a pair of pull-out auxiliary taper surfaces that slide toward the front portion.

According to a third aspect of the present invention, there is provided a connector withdrawal structure according to the first aspect, wherein the lock arms are arranged side by side in a pair, and the first extraction assisting means is provided with: A pulling-out auxiliary portion that is installed between the rear portions of the pair of lock arms, wherein the second pulling-out auxiliary means is inclined gradually higher from the front-rear direction front portion of the second connector housing toward the rear portion and The pulling-out assisting portion is a pulling-out assisting tapered surface which slides toward the front portion when the lock arm is bent and the lock arm is bent.

According to the present invention described in claim 1,
The lock arm of the first connector housing of the first connector and the first and second extraction assisting means integrated with the second connector housing of the second connector are provided, and the first connector and the second connector are in a fitted state. When the lock arm is flexed from and the lock is released, a detaching force is generated in the detaching direction of the first connector and the second connector by the first and second extraction assisting means. As a result, the distance between the front portion of the first connector housing and the inner wall of the second connector housing gradually increases, and the first connector and the second connector, which are engaged with each other, start to separate. Then, when the gap is expanded to some extent, the frictional resistance between the first connector housing and the second connector housing, especially between the terminal fittings is reduced. In this state, when the operator pulls each of the first connector and the second connector with their own hands, they are easily separated from each other, and the work is completed.

According to the present invention described in claim 2,
When the lock arm is bent and unlocked from the fitted state of the first connector and the second connector, the pair of pull-out auxiliary portions of the lock arm slide on the pair of pull-out auxiliary taper surfaces of the second connector housing. Since the extraction assisting taper surface is gradually inclined from the front part of the second connector housing toward the rear side, when the extraction assisting taper surface slides from the rear part side toward the front part, A detaching force is generated in the detaching direction of the first connector and the second connector. As a result, the distance between the front portion of the first connector housing and the inner wall of the second connector housing gradually increases, and the first connector and the second connector, which are engaged with each other, start to separate. Then, when the gap is expanded to some extent, the frictional resistance between the first connector housing and the second connector housing, especially between the terminal fittings is reduced. In this state, when the operator pulls each of the first connector and the second connector with his / her own hand, they are easily detached, and the work is completed.

According to the present invention described in claim 3,
When the paired lock arms are bent and unlocked from the fitted state of the first connector and the second connector, the pull-out auxiliary portion at the rear part of the pair of lock arms slides on the pull-out auxiliary taper surface of the second connector housing. . The withdrawal auxiliary taper surface gradually inclines from the front part to the rear part of the second connector housing, so that when the withdrawal auxiliary taper surface slides from the rear part toward the front part, A detaching force is generated in the detaching direction of the first connector and the second connector. As a result, the distance between the front portion of the first connector housing and the inner wall of the second connector housing gradually increases, and the first connector and the second connector, which are engaged with each other, start to separate. Then, when the gap is expanded to some extent, the frictional resistance between the first connector housing and the second connector housing, especially between the terminal fittings is reduced. In this state, when the operator pulls each of the first connector and the second connector with their own hands, they are easily separated from each other, and the work is completed.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a connector detaching structure of the present invention. 2 is a cross-sectional view showing a state in which the first connector and the second connector are fitted, FIG. 3 is a cross-sectional view showing a state in which the lock arm is bent at the time of starting the work relating to the disconnection, and FIG. It is a sectional view showing a state where a lock arm bends and a detachment force is generated in a detachment direction of a first connector and a second connector.

In FIG. 1, reference numerals 1 and 2 denote a female first connector and a male second connector, which are configured to be mated with each other. The first connector 1 includes a first connector housing 3 made of synthetic resin and a plurality of terminal fittings (not shown). The plurality of terminal fittings are respectively accommodated in a plurality of terminal accommodating chambers formed in the first connector housing 3, and each terminal of the plurality of electric wires 4 forming the wire harness is connected. The plurality of terminal fittings and the plurality of terminal accommodating chambers are the same as known ones, and the description and illustration thereof will be omitted here.

The first connector housing 3 is formed in a box shape, and on the front surface of the first connector housing 3, a terminal fitting (not shown) of the second connector 2 which will be described later is introduced into the terminal accommodating chamber (not shown). A plurality of holes are formed for this purpose. On the rear surface of the first connector housing 3, a plurality of insertion openings for terminal fittings (not shown) are formed. A lock arm 5 and a pair of guide ribs 6 are formed on the upper surface of the first connector housing 3.

The lock arm 5 has a base end portion connected to the front portion side of the first connector housing 3 and an arm tip end formed in a cantilever arm shape extending to the rear portion side of the first connector housing 3. ing. That is, the lock arm 5 is formed so as to extend in the front-rear direction of the first connector housing 3. A pressing operation portion 7 is formed on the upper surface of the arm end of the lock arm 5. Further, a protrusion-shaped first locking portion 8 is formed on the intermediate upper surface of the lock arm 5.

A pair of pulling-out assisting portions 9 (first pulling-out assisting means) are integrally formed on both left and right sides of the pressing operation portion 7. The pair of extraction assisting portions 9 are formed in a blade shape protruding in the left-right direction in this embodiment.

The pair of guide ribs 6 are provided on the lock arm 5.
Are formed on both the left and right sides of the sheet with a predetermined interval. In addition, the pair of guide ribs 6 serves as the first connector housing 3
Is formed so as to extend in the front-back direction. In the present embodiment, the pair of guide ribs 6 are formed to be higher than the lock arm 5. That is, it has a function of protecting the lock arm 5 (first connector housing 3
Is effective in preventing damage to the lock arm 5 when it is delivered alone or stored).

The second connector 2 comprises a second connector housing 10 made of synthetic resin and a plurality of terminal fittings (not shown). The plurality of terminal fittings are accommodated in a plurality of terminal accommodating chambers formed in the second connector housing 10, respectively, and the terminals of the plurality of electric wires 11 that form the wire harness are connected to the plurality of terminal fittings. The plurality of terminal fittings and the plurality of terminal accommodating chambers are the same as known ones, and the description and illustration thereof will be omitted here.

The second connector housing 10 is formed in a box shape having an open front surface. The second connector housing 10 is formed so that the first connector housing 3 fits inside through the front surface.
Inside the second connector housing 10, the electrical contact portions of the plurality of terminal fittings (not shown) project through the inner wall (wall having a rear surface), and when the first connector housing 3 is fitted, , Is electrically connected to the terminal fitting of the first connector 1 through the hole. On the upper wall (wall having an upper surface) of the second connector housing 10, a second locking portion 12, a pair of guide grooves 13, a recess 14, and a pair of pulling auxiliary taper surfaces 15 (second pulling auxiliary means) are formed. Has been done.

The second locking portion 12 is formed inside the upper wall and has a projection shape which allows the first locking portion 8 of the first connector 1 to be engaged. The pair of guide grooves 13 extends in the front-rear direction of the second connector housing 10 and is formed so as to be able to guide the pair of guide ribs 6 of the first connector 1. The concave portion 14 is formed by cutting out the front surface so that the pair of extraction auxiliary taper surfaces 15 can be exposed when the first connector 1 and the second connector 2 are fitted.

The pair of pulling-out auxiliary taper surfaces 15 are slopes that gradually incline toward the rear side from the front side in the front-rear direction of the second connector housing 10. In the present embodiment, the front side and the bottom portion of the recess 14 are inclined. It is formed over. Further, the pair of pulling-out auxiliary taper surfaces 15 are formed at positions to be inserted into both left and right sides of the lock arm 5 when the first connector 1 and the second connector 2 are fitted.

Next, the operation of the connector disconnection structure of the present invention will be described based on the above configuration.

In FIG. 2, when the first connector 1 and the second connector 2 are fitted to each other, a pair of pull-out auxiliary taper surfaces 15 are inserted on both left and right sides of the lock arm 5. Further, the first locking portion 8 of the lock arm 5 is engaged with the second locking portion 12 of the second connector housing 10, and the locked state is maintained.

In FIG. 3, when the pressing operation portion 7 is pressed from the fitted state of the first connector 1 and the second connector 2 to bend the lock arm 5 in the direction of arrow A, the locked state is released. That is, the first locking portion 8 and the second locking portion 1
The engagement with 2 is released. When the pressing operation portion 7 continues to be pressed as it is, the pair of pull-out auxiliary portions 9 of the lock arm 5 abut on the pair of pull-out auxiliary taper surfaces 15 of the second connector housing 10, and thereafter, the pair of pull-out auxiliary portions 9 are pressed. Slides on the pair of extraction assisting tapered surfaces 15.

In FIG. 4, a pair of extraction assisting portions 9
Slides the pair of extraction auxiliary taper surfaces 15 toward the front surface (front portion) of the second connector housing 10,
Disengagement direction of the first connector 1 and the second connector 2 (arrow line B
Direction), which causes the distance between the front portion 16 of the first connector housing 3 and the back wall 17 of the second connector housing 10 to gradually widen and to be fitted together. Withdrawal from and begins.

Then, when the space is expanded to some extent, the first connector housing 3 and the second connector housing 10
The frictional resistance between them, especially between the terminal fittings, is reduced. In this state, when the operator pulls each of the first connector 1 and the second connector 2 with his / her own hand, they are easily detached and the work is completed.

As described above with reference to FIGS. 1 to 4, the pair of pull-out assisting portions 9 and the pair of pull-out assisting tapered surfaces 15 as the first and second pull-out assisting means are provided in the lock arm 5. Also, since it is integrated with the second connector housing 10, the structure for detaching the connector does not increase the number of constituent parts for each connector housing. Further, since the structure does not use a lever as in the related art, the structure of the entire connector does not become complicated or large. Therefore, it is possible to provide a connector detachment structure that can easily detach the connector while reducing the number of constituent parts, simplifying the structure, and reducing the size.

FIG. 5 is a perspective view showing another embodiment of the connector detachment structure according to the present invention.

In FIG. 5, reference numerals 21 and 22 denote a female first connector and a male second connector, respectively.
Configured for mating. First connector 21
Is provided with a first connector housing 23 made of synthetic resin and a plurality of terminal fittings (not shown). The plurality of terminal fittings are accommodated in a plurality of terminal accommodating chambers formed in the first connector housing 23, respectively, and the terminals of the plurality of electric wires 24 that form the wire harness are connected to each other. The plurality of terminal fittings and the plurality of terminal accommodating chambers are the same as known ones, and the description and illustration thereof will be omitted here.

The first connector housing 23 is formed in a box shape, and the second connector 22 is provided in the terminal accommodating chamber (not shown) on the front surface of the first connector housing 23.
A plurality of holes for introducing terminal fittings (not shown) described later are formed. On the rear surface of the first connector housing 23, a plurality of insertion openings for terminal fittings (not shown) are formed. A pair of lock arms 25 and a pair of guide ribs 26 are formed on the upper surface of the first connector housing 23.

The pair of lock arms 25 have their base end portions connected to the front side of the first connector housing 23, and the arm tips form a cantilevered arm extending to the rear side of the first connector housing 23. Has been formed. That is, the pair of lock arms 25 are formed so as to extend in the front-rear direction of the first connector housing 23. Further, the pair of lock arms 25 are arranged side by side with a predetermined interval (at least the interval at which a pull-out auxiliary tapered surface 35 described later can be inserted). A pair of lock arms 25
A pressing operation portion 27 is formed on the upper surface of the arm tip. In addition, a protrusion-shaped first locking portion 28 is formed on the intermediate upper surfaces of the pair of lock arms 25.

The pushing operation portion 2 of the pair of lock arms 25
A pull-out auxiliary portion 29 (first pull-out auxiliary means) is integrally formed between the 7 and 7 (formed so as to be installed between the pressing operation portions 27). In this embodiment,
The overall shapes of the pressing operation portion 27 and the withdrawal auxiliary portion 29 are
It is formed in a blade shape extending in the left-right direction.

The pair of guide ribs 26 are formed on the left and right sides of the pair of lock arms 25 with a predetermined space. The pair of guide ribs 26 are formed so as to extend in the front-rear direction of the first connector housing 23. In the present embodiment, the pair of guide ribs 26 is formed to be higher than the pair of lock arms 25. That is, it has a function of protecting the pair of lock arms 25 (effective for preventing damage to the pair of lock arms 25 when the first connector housing 23 is delivered alone or stored).

The second connector 22 comprises a second connector housing 30 made of synthetic resin and a plurality of terminal fittings (not shown). The plurality of terminal fittings are respectively accommodated in a plurality of terminal accommodating chambers formed in the second connector housing 30, and each terminal of the plurality of electric wires 31 forming the wire harness is connected. The plurality of terminal fittings and the plurality of terminal accommodating chambers are the same as known ones, and the description and illustration thereof will be omitted here.

The second connector housing 30 is formed in a box shape having an open front surface. The second connector housing 30 is formed so that the first connector housing 23 fits inside through the front surface. Inside the second connector housing 30, the electrical contact portions of the plurality of terminal fittings (not shown) project through the inner wall (wall having a rear surface), and when the first connector housing 23 is fitted, , And is electrically connected to the terminal fitting of the first connector 21 through the hole. A second locking portion 32, a pair of guide grooves 33, a recess 34, and a pull-out auxiliary taper surface 35 (second pull-out auxiliary means) are formed on an upper wall (a wall having an upper surface) of the second connector housing 30. There is.

The second locking portion 32 is formed on the inside of the upper wall in the shape of a protrusion that can be engaged with the first locking portion 28 of the first connector 21. The pair of guide grooves 33 extends in the front-rear direction of the second connector housing 30 and is formed so as to be able to guide the pair of guide ribs 26 of the first connector 21. The recess 34 is formed by cutting out the front surface so that the auxiliary pull-out taper surface 35 can be exposed when the first connector 21 and the second connector 22 are fitted together.

The withdrawal auxiliary taper surface 35 is an inclined surface that gradually inclines toward the rear side from the front side in the front-rear direction of the second connector housing 30, and in the present embodiment,
It is formed from the center of the front surface to the center of the bottom portion of the recess 34. That is, the extraction assisting taper surface 35 is
It is formed at a position to be inserted between the pair of lock arms 25 when the first connector 21 and the second connector 22 are fitted to each other.

Next, the operation of the connector detachment structure of the present invention will be described based on the above-mentioned configuration (not particularly shown, but refer to FIGS. 2 to 4).

The first connector 21 and the second connector 22
When is fitted, the pull-out auxiliary taper surface 35 is inserted between the pair of lock arms 25. Further, the first locking portions 28 of the pair of lock arms 25 are engaged with the second locking portions 32 of the second connector housing 30, and the locked state is maintained.

First connector 21 and second connector 22
From the fitted state of the pressing operation portion 27 and the withdrawal auxiliary portion 29
When is pressed to bend the pair of lock arms 25, the locked state is released. That is, the engagement between the first locking portion 28 and the second locking portion 32 is released. When the pressing operation portion 27 and the pull-out auxiliary portion 29 are continuously pressed as they are, the pull-out auxiliary portions 29 of the pair of lock arms 25 come into contact with the pull-out auxiliary tapered surfaces 35 of the second connector housing 30, and then the pull-out auxiliary portions. 29 slides on the pulling auxiliary taper surface 35.

When the pull-out assisting portion 29 slides the pull-out assisting taper surface 35 toward the front surface (front portion) of the second connector housing 30, a detaching force is exerted in the detaching direction of the first connector 21 and the second connector 22. As a result, the distance between the front portion of the first connector housing 23 and the back wall of the second connector housing 30 gradually widens, and the first connector 21 and the second connector 22 that are engaged with each other start to separate.

Then, when the space is expanded to some extent, the first connector housing 23 and the second connector housing 3
The friction resistance between 0s, especially between the terminal fittings is reduced. In this state, when the operator pulls each of the first connector 21 and the second connector 22 with his / her own hand, they are easily detached, and the work is completed.

As described above with reference to FIG. 5, the pull-out auxiliary portion 29 and the pull-out auxiliary taper surface 35 as the first and second pull-out auxiliary means have the pair of lock arms 25 and the second connector housing 30. The structure for detaching the connector does not increase the number of constituent parts for each connector housing. Further, since the structure does not use a lever as in the related art, the structure of the entire connector does not become complicated or large. Therefore, it is possible to provide a connector detachment structure that can easily detach the connector while reducing the number of constituent parts, simplifying the structure, and reducing the size.

In addition, it is needless to say that the present invention can be variously modified and implemented without departing from the spirit of the present invention.

[0055]

As described above, according to the present invention as set forth in claim 1, since the first and second extraction assisting means are integrated with the lock arm and the second connector housing, the connector housing is provided. It does not lead to an increase in the number of constituent parts for each. Further, since the structure does not use a lever as in the related art, the structure of the entire connector does not become complicated or large. Therefore, it is possible to provide a connector detaching structure that can easily detach the connector while reducing the number of constituent parts, simplifying the structure, and reducing the size.

According to the invention described in claim 2,
The first extraction assisting means is a pair of extraction assisting portions protruding in the left-right direction at the rear part of the lock arm, and the second extraction assisting means is a pair of extraction assisting tapered surfaces on which the pair of extraction assisting parts slide, The structure can be simplified and the size can be reduced more than ever before.

According to the present invention described in claim 3,
The lock arms are arranged side by side in a pair, the first withdrawing assisting means is an withdrawing assisting portion installed between the rear parts of the paired lock arms, and the second withdrawing assisting means is the withdrawing assisting means in which the withdrawing assisting portion slides. Since it is a tapered surface,
The structure can be simplified and the size can be reduced more than ever before.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a connector withdrawal structure according to the present invention.

FIG. 2 is a cross-sectional view showing a state in which a first connector and a second connector are fitted together.

FIG. 3 is a cross-sectional view showing a state in which a lock arm is bent at the time of starting work related to separation.

FIG. 4 is a cross-sectional view showing a state in which the lock arm is further bent and a detaching force is generated in a detaching direction of the first connector and the second connector.

FIG. 5 is a perspective view showing another embodiment of a connector disconnecting structure according to the present invention.

FIG. 6 is a perspective view of a lever fitting type connector of a conventional example.

FIG. 7 is a cross-sectional view showing one connector housing and lever of FIG.

FIG. 8 is an explanatory diagram showing a process of fitting both connector housings of FIG. 6;

9 is an explanatory view showing a state of a flexible locking arm of a lever when the connector housings of FIG. 8 are fitted to each other.

FIG. 10 is an explanatory diagram showing a state in which the lever of FIG. 9 is further rotated to start locking the lever.

FIG. 11 is an explanatory diagram showing a state in which the lever of FIG. 10 is continuously rotated and locked.

FIG. 12 is an explanatory diagram showing an operation for releasing the lock of the lever of FIG.

[Explanation of symbols]

1, 21 1st connector 2, 22 2nd connector 3, 23 1st connector housing 5, 25 Lock arm 7, 27 Pressing operation part 8, 28 1st locking part 9, 29 Extraction auxiliary part (1st extraction auxiliary means) ) 10, 30 Second connector housing 12, 32 Second locking portion 14, 34 Recessed portion 15, 35 Pull-out auxiliary taper surface (second pull-out auxiliary means)

Claims (3)

[Claims] 1. A disengagement structure of a first connector and a second connector which are engaged with each other, wherein a first connector housing of the first connector has flexibility extending in a front-rear direction of the first connector housing. The lock arm has a lock arm, and the second connector housing of the second connector generates a detaching force in a detaching direction of the first connector and the second connector when the lock arm is bent and unlocked. A detachment structure for a connector, characterized in that it has first and second withdrawal assisting means integrally provided. 2. The connector withdrawal structure according to claim 1, wherein the first pull-out assisting means is a pair of pull-out assisting portions protruding in the left-right direction at the rear portion of the lock arm, and the second pull-out assisting means. Is gradually inclined from the front part in the front-rear direction of the second connector housing toward the rear part, is inserted into both left and right sides of the lock arm, and when the lock arm is bent, the pair of pull-out auxiliary parts are moved to the front part. A detachment structure for a connector, which is a pair of pull-out auxiliary taper surfaces that slide toward each other. 3. The disconnection structure for a connector according to claim 1, wherein the lock arms are arranged side by side in a pair, and the first extraction assisting means is installed between rear portions of the lock arms forming the pair. The second pulling-out assisting means is inclined toward the rear side of the second connector housing from the front side in the front-rear direction, and is inserted between the pair of lock arms. A detachment structure for a connector, characterized in that the pulling-out assisting portion is a pulling-out assisting taper surface that slides toward the front part when the flexure occurs.