JP2003308923A - Connector lock structure - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To improve the lock release property while reducing the size of a lock portion of a connector. SOLUTION: A lock portion 11 is provided on one connector and a locked portion is provided on the other connector, so that both connectors are locked at the same time as fitting, and the lock portion 11 is raised from a wall portion 9 of one connector. A first arm unit 20,
A second arm portion 24 extending from the free end side of the arm portion toward the rising base portion 20a and having a contact fulcrum 28 against the wall portion of the other connector, a locking portion 23b on the free end side,
An unlocking operation section 26 formed upright on the free end side of the second arm section. Both arms 20, 24
Are formed to have substantially the same length, and the operation unit 26 is located above the side of the rising base 20a. Contact fulcrum is inclined surface 28
It is. A pair of arms 20 and 24 are provided and connected by connecting parts 21 and 25, and an operating part 26 is formed upright on the connecting part 25. The arm 20 is moved outward, and the arm 24
Is located inside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector lock structure having a small lock portion for locking the connector upon fitting the connector.

[0002]

2. Description of the Related Art As a structure for locking one connector in a state of being connected to the other connector, various types of structures have been conventionally proposed and implemented.

FIG. 5 shows an example in which a flexible lock arm 42 is provided upright from a front end side of fitting to a male connector 41 for accommodating a female terminal.
2 has a locking projection 43 at a middle portion in the longitudinal direction, and a mating female connector (not shown) is provided with an engaging recess for the locking projection 43. The lock is released by pushing down the rear end portion 44 of the lock arm 42. The front end portion 45 of the lock arm 42 serves as a fulcrum, and the rear end portion 44 serves as a force point.

FIG. 6 shows an example in which a seesaw-type lock arm 47 is provided in a male connector 46 for accommodating a female terminal, and the locking hole 4 is provided on the front end side of the lock arm 47.
8 is provided and is a female connector on the mating side (not shown)
An engaging protrusion is provided for the locking hole 48. The lock is released by pushing down the rear end 49 of the lock arm 47. The fulcrum 50 is located at an intermediate portion of the lock arm 47, and the rear end portion 49 serves as a force point.

FIG. 7 shows a modified example of FIG. 6 in which a pair of fulcrums 52 are provided on both sides in the width direction at the longitudinal middle portion of the lock arm 51, and a pair of arm pieces 53 are extended rearward from the fulcrum 52 and extended rearward. The lock piece 54 is extended forward from the portion between the pair of arm pieces 53, the locking hole 55 is provided at the front end side of the lock piece 54, and the rear end portion 56 of the lock arm 51 is provided.
It shows a lock structure with the point of force as a point. Lock piece 5
The reference numeral 1 projects long beyond the fulcrum 52 to the front.

As shown in FIG. 8, the engaging projection 58 of the female connector 57 on the mating side engages with the engaging hole 55 of the lock piece 54. The male connector 59 is fitted in the fitting chamber 60 of the female connector 57. Simultaneously with connector fitting, both male and female terminals (not shown) are connected. Both terminals are connected to electric wires (not shown). The lock is released by pushing down the force point 56 of the lock arm 51. Focus point 56
By pulling both connectors 57 and 59 by hand while pushing down, the connection between both male and female terminals is released.

As a modification of the lock structure shown in FIG. 7, a fulcrum (52) is provided at the center of the lock arm in the width direction, and the fulcrum (5
There is also proposed an example in which a pair of lock pieces are continuous in a frame shape on both sides of 2) and a locking hole (55) is formed inside the lock pieces. The force point (56) is located at the rear end of the arm as in FIG.

[0008]

However, the lock structure of the connector 41 of FIG. 5 has a problem that the distance from the fulcrum 45 to the force point 44 is long and the lock arm 42 becomes large. In addition, the connector 46 of FIG.
In the lock structure of No. 2, the distance from the fulcrum 50 to the force point 49 is reduced by half, but the distance from the force point 49 to the action point, that is, the locking hole 48 is long, and similarly, the lock arm 47.
Had the problem of becoming larger. In the locking structure of the connector 59 of FIG. 7 and its modification, the distance from the fulcrum 52 to the force point 56 is short as in the example of FIG. There is a problem in that the distance is long and the lock arm 51 similarly becomes large.

In view of the above points, the present invention provides a connector which can be easily and surely unlocked, not to mention that the lock portion can be miniaturized so that the lock can be reliably performed. The purpose is to provide a locking structure.

[0010]

In order to achieve the above object, the connector lock structure according to claim 1 of the present invention comprises:
In a connector locking structure in which one connector is provided with a lock portion and the other connector is provided with a locked portion to lock both connectors at the same time, the lock portion is raised from the wall portion of the one connector. A first arm portion and a second arm having a contact fulcrum that extends from the free end side of the first arm portion toward the rising base portion of the first arm portion and is in contact with the wall portion of the other connector. And a lock portion located on the free end side, and an unlocking operation portion that is formed upright on the free end side of the second arm portion.

With the above structure, when the two connectors are fitted to each other, the free end side of the lock portion of one connector is pressed by the locked portion of the other connector in the bending direction, and the first arm portion bends around the rising base portion as a fulcrum. Meanwhile, the locking portion engages with the locked portion, and at the same time, the first arm portion is restored and both connectors are locked without coming out. The locking portion acts as a point of action. When unlocking both connectors, pull or push the operating part in the longitudinal direction of the arm (direction from the locking part to the operating part), that is, in the direction that intersects the projecting direction of the operating part, so that With the contact point with the second arm as a fulcrum, the second arm flexes in the unlocking direction, and the locking part moves integrally with the second arm in the unlocking direction to lock the locked part and the locked part. The engagement with the section is released. The operating part acts as a force point. By pulling one connector in the same direction as the operating direction of the operating portion while the lock is released, the fitting (connection) of both connectors is released. The second arm portion extends toward the stand-up base portion of the first arm portion and does not need to extend in the longitudinal direction more than the stand-up base portion (even if the second arm portion is short, the other connector Can be rotated in the unlocking direction on the principle of leverage by using the contact point with the wall part as a fulcrum), so that the lock part is made compact in the longitudinal direction.

According to a second aspect of the present invention, there is provided a lock structure for a connector,
The connector lock structure according to claim 1, wherein the first arm portion and the second arm portion are formed to have substantially the same length, and the operation portion is located above a side portion of the rising base portion. Is characterized by. With the above-described configuration, when the lock is released, the operating portion extends laterally of the rising base portion of the first arm portion in the direction opposite to the rising base portion (upward). Therefore, the operating portion is pulled or pushed in the longitudinal direction of the arm portion. As a result, each arm portion can be reliably and easily bent in the unlocking direction with a small force by the action of the lever. It is needless to say that the lock portion is downsized in the longitudinal direction because the lengths of both arm portions are substantially the same.

A connector lock structure according to a third aspect of the present invention is
The lock structure for a connector according to claim 1 or 2,
The slit between the first arm portion and the second arm portion extends longer than the locking portion toward the free end side of the first arm portion. With the above configuration, the first arm portion is easily bent when the connector is fitted, and the lock is easily performed with a small force, and the second arm portion is easily bent in the unlocking direction with a small operating force when the lock is released, and the lock is performed. Release work becomes easy and reliable.

A connector lock structure according to a fourth aspect is
The lock structure for a connector according to any one of claims 1 to 3, wherein the fulcrum is an inclined surface. With the above configuration, when the connector is fitted, the tip end of the wall portion of the other connector comes into contact with the inclined surface of the second arm portion, and when the lock is released, the operating portion is pulled or pushed in a direction intersecting with the protruding direction, so that the inclination is increased. The second arm portion is surely bent in the lock releasing direction by the lever principle with the surface as a fulcrum with a small force, and the lock is surely released.

A connector lock structure according to a fifth aspect is
The lock structure for a connector according to any one of claims 1 to 4, wherein a pair of the first arm portion and the second arm portion are provided, and each arm portion is connected by a connecting portion. It is characterized in that the operating portion is formed upright on a connecting portion on the free end side of the second arm portion. With the above configuration, when the connectors are fitted, the pair of first arm portions are uniformly bent, and the locking portion between the pair of first arm portions is engaged with the locked portion of the other connector with a strong locking force. To do. Further, since the pair of second arm portions are stably supported by the free end side portions of the pair of first arm portions, when the lock is released, the pair of second arm portions are operated simultaneously by operating the operating portion. It bends with a large stroke, and the lock is released reliably and easily with a small operating force.

A connector lock structure according to a sixth aspect is
The connector locking structure according to claim 5, wherein the first arm portion is located outside and the second arm portion is located inside. With the above configuration, the pair of second arm portions are located in the inner space of the pair of outer first arm portions, and the second arm portion-side connecting portion is provided inside the rising base portion of the first arm portion. The operation part is located. Only the operation part projects upward from the start-up base,
The shape of the lock part is also simplified and made compact in the height direction.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example in which the lock structure for a connector according to the present invention is applied to a board connector.
FIG. 4 similarly shows one embodiment of the lock structure of the connector.

In FIG. 1, a board connector 1 comprises a male connector (also referred to as a holder) 2 fixed to an end portion of a flat circuit body 4 and a female connector 3 fixed to a circuit board 5. Has been done. By fitting the two connectors 2 and 3, the flat circuit body 4 and the circuit board 5 are electrically connected.

The male connector 2 is composed of a connector housing (also referred to as a holder body) 6 made of synthetic resin and a plurality of terminal portions (not shown) provided in parallel in the connector housing 6. The portion is formed by removing the insulating coating 7 of the flat circuit body 4 and exposing the conductor portion 8. The connector housing 6 is composed of a lower substrate portion (wall portion) 9, upper left and right pressing walls 10, and a central locking portion 11 on the upper side. The terminal portions are arranged in parallel on the lower surface (back surface) of the substrate portion 9.

The female connector 3 includes a connector housing 13 made of synthetic resin having a horizontally long fitting chamber 12 with respect to the base plate portion 9 and a plurality of terminals projecting into the fitting chamber 12 and arranged in parallel (see FIG. 1). , Only the groove portion 14 for accommodating the terminal is shown), and the terminal has, for example, a pair of upper and lower clamping contact pieces, and can vertically clamp the board portion 9 including the terminal portion of the male connector 2. Is. The terminals are connected to a circuit conductor (not shown) of the circuit board 5 by means such as soldering. On the upper wall 15 (wall portion) of the female-side connector housing 13, a protrusion 16 that is a locked portion for the lock portion 11 of the male-side connector 6 is integrally formed. The upper wall 15 of the connector housing 13 at the front end of the fitting chamber 12
And a lower wall (base wall) 17 and an inclined surface 18 for guiding upward,
19 is formed.

At the time of fitting the two connectors 2 and 3, the board portion 9 is inserted into the fitting chamber 12, and the pressing walls 10 on both sides are the upper wall 15.
The terminal portion is connected to the terminal, and at the same time, the lock portion 11 engages with the locked portion 16 to prevent the connectors 2 and 3 from coming off, and the connection between the terminals is maintained.

The applicant of the present invention has already proposed the basic structure of the board connector 1 in Japanese Patent Application No. 2001-238886. According to the present invention, the lock portion 11 of the male connector 2 which is one of the connectors is improved so that the lock can be surely performed and the lock can be easily and surely released. Is.

That is, as shown in the enlarged perspective view of the lock portion 11 in FIG. 2, the lock portion 11 is a pair of left and right flexible first members integrally raised from the horizontal substrate portion 9 in a substantially L-shape. Arm portion 20, a connecting plate portion (connecting portion) 21 that connects the front end side of the arm portion 20 in the width direction, and the pair of arm portions 20.
Between the connecting plate portion 21 and the arm base portion 20a, a substantially frame-shaped operation piece portion 22 is formed.

The arm portion 20 is composed of a vertical short leg portion 20a which is a rising base portion and a horizontal long flexible portion 20b, and the connecting plate portion 21 is formed to be as wide as the length of the arm portion 20. ing. As shown in FIG. 3, a projection 23 is formed on the lower surface side of the connecting plate portion 21, and the projection 23 has a front slidable contact slant surface 23a and a rear vertical locking surface (locking portion) 23b. is doing.

The operation piece portion 22 (FIG. 2) has a pair of flexible second arm portions 24 following the connecting plate portion 21 and a width at the rear end (free end) side of the pair of arm portions 24. The connecting portion 25 is connected in the direction, and the operating portion 26 is projected upward from the connecting portion 25.

The pair of second arm portions 24 extend parallel to and opposite to the outer first arm portion 20. The upper surfaces of the inner and outer arm portions 24, 20 are inclined so that the plate thickness gradually increases toward the rear. The lower surfaces of the inner and outer arm portions 24, 20 are parallel to the upper surface of the board portion 9, and between the arm portions 20, 24 and the board portion 9 the mating female connector 3 (FIG. 1). The upper wall (wall portion) 15 of the housing 13 of is accessible.

A rectangular hole portion 30 is formed by being surrounded by the connecting plate portion 21 (FIG. 2), the pair of inner arm portions 24 and the connecting portion 25, and the front end surface 30a of the hole portion 30 is formed as shown in FIG. It continues to the same surface as the locking surface 23b of the projection 23 on the lower surface side of the connecting plate portion 21. Protrusion 23 and hole 30 or at least protrusion 23
Engages with the protrusion 16 (FIG. 1) which is the locked part on the other side. The protrusion 16 (FIG. 1), which is the locked portion, also has a slidable surface 16a for sliding contact on the front side and a vertical locking surface 16b on the rear side. In FIG. 2, the slit 27 between the inner and outer arm portions 24, 20 extends slightly forward of the front end face (locking portion) 30a of the hole 30. In this specification, the connector fitting direction is defined as "front".

The rear end 30b of the hole 30 continues substantially horizontally to the lower surface 25a (FIG. 4) of the connecting portion 25. The connecting portion 25 is located above the substrate portion 9 with a space therebetween. The base portions (rear end portions) of the pair of inner arm portions 24 on both sides of the connecting portion 25 are inclined downward toward the substrate portion 9, and the inclined surface 28 (FIG. 4) is substantially horizontal and slightly separated from the substrate portion 9. Continuous surface 25a. The inclined surface 28 is capable of contacting the inclined surface 18 at the front end of the upper wall 15 of the mating female connector housing 13 (FIG. 1) and acts as a contact fulcrum for the upper wall 15. The rear end of the inner arm portion 24 (FIG. 2) and the connecting portion 25 constitute the free end of the operating piece portion 22. The lower inclined surface 28 of the inner arm 24 is located in front of the operating portion 26 as shown in FIG. The free end of the operation piece portion 22 (FIG. 2) is located at substantially the same position as the leg portion 20a of the outer arm 20,
The lock portion 11 is made compact in the longitudinal direction because it does not largely project rearward.

The connecting portion 25 is continuous with the upward operating portion 26. The operation portion 26 is projected to a height of the projection 23 and the hole portion 30 combined, and the front end surface of the operation portion 26 is composed of an upper vertical surface 26a (FIG. 4) and a lower curved surface 26b. The curved surface 26b continues to the upper surface of the pair of inner arm portions 22 (FIG. 2), and the rear end surface 26c (FIG. 4) of the operation portion 26.
Is located vertically on the same plane as the rear end surface of the connecting portion 25 toward the base plate portion 9, and the vertical both side surfaces 26d (FIG. 2) of the operating portion 26 are integrally formed with the both side surfaces of the connecting portion 25 and are a pair of inner arms. Part 24
On both sides. The operation unit 26 is the inner arm unit 2
4 is located behind the lower inclined surface 28. Figure 4
As indicated by the arrow A, the operating portion 26 is pushed rearward in a substantially horizontal direction.

The operation of the connector lock structure will be described below. When mating both connectors 2 and 3 (Fig. 1),
While the protrusion 15 of the female connector 3 is in sliding contact with the protrusion 23 (FIG. 2) of the lock portion 11 of the male connector 2, the lock portion 11
The outer arm portion 20 is bent upward together with the inner arm portion 24 around the leg portion 20a as a fulcrum, and at the same time when the connector is fitted, both arm portions 20 and 24 are returned downward and the projection 2
3, 16 are engaged with each other at their engaging surfaces (engaging portions) 23b, 16b. As a result, the connectors 2 and 3 are fitted and connected without coming out. The inner arm portion 24 moves up and down integrally with the outer arm portion 20. The leg portion 20a of the outer arm portion 20 acts as a first fulcrum, and at least the protrusion 23 or the protrusion 23 and the hole portion 30 of the lock portion 11 act as an action point.

The upper wall 15 of the female-side connector housing 13 (FIG. 1) has a base plate portion 9 shown in FIG. 4 and inner and outer arm portions 24, 2 respectively.
Enter the space 29 between 0 and the sloped surface 18 at the front end of the upper wall.
(FIG. 1) abuts the inclined surface 28 on the base side of the inner arm 24 shown in FIGS. As a result, the operation piece portion 22 (FIG. 2) of the lock portion 11 can be rotated upward with the inclined surface 28 as a fulcrum when the lock is released. The inclined surface 28 of the inner arm portion 24 acts as a second fulcrum. This is the operation unit 2
This is because 6 is located slightly behind the inclined surface 28 (the inclined surface 28 is located slightly ahead of the operating portion 26).

That is, when the connectors 2 and 3 are unlocked, the operator pulls the operation portion 26 backward with fingers as shown in FIG. 4, whereby the inner arm 24 rotates upward with the inclined surface 28 as a fulcrum. The front substrate portion 21 and the outer arm 20 following the substrate portion 21 rotate upward together with the inner arm 24. As a result, the protrusion 23 on the lower surface side of the substrate portion 21
Is released from the protrusion 16 of the mating connector 3 and the lock is released. The operation unit 26 acts as a force point.

In particular, the slit 27 between the inner and outer arm portions
Since the front end surface 30a of the hole portion 30 (the locking surface (locking portion) 23b of the projection 23) is cut away longer than the front end surface 30a (FIG. 2), the inner arm portion 24 is pulled by the operation portion 26.
Greatly bends upward, and the projections are easily and reliably separated from each other. By pulling the male connector 2 backward with the operating portion 26 pulled backward, both connectors 2, 3
The fitting is released. Since the operating direction of the operating portion 26 (direction of arrow A in FIG. 4) and the disconnecting direction of the male connector 2 (FIG. 1) are the same, the connector 2 can be easily detached while pulling the operating portion 26. .

The fulcrum 20a is not linear like the conventional cantilever arm, but the inner arm 24 is U-turned from the first fulcrum 20a (FIG. 2) through the outer arm 20. Even if the force point 26 is provided on the upper part of the above, a sufficient lock distance (bending distance) can be obtained, whereby the lock portion 11 can be downsized and locked and unlocked reliably.

Even when the front end of the upper wall 15 of the female connector housing 13 (FIG. 1) is not the inclined surface 18, the front end edge of the upper wall 15 (see FIG. By contacting (not shown), the inclined surface 28 serves as a second fulcrum, and the lock portion 11 can be rotated in the unlocking direction by a pulling operation of the operating portion 26 or a pressing operation from the front. When the inclined surface 28 is not formed on the inner arm portion 24, the inner edge of the inner arm portion 24 is brought into contact with the inner surface of the middle portion of the inner arm portion 24 by the front end edge of the female connector housing 13. The intermediate portion in the longitudinal direction of 24 serves as the second fulcrum, and the lock can be similarly released.

In the above embodiment, the first arm portion 20 is arranged outside and the second arm portion 24 is arranged inside. However, the first arm portion (20) is arranged inside.
On the free end side (front end side) of the first arm portion (20), the second arm portion (24) is arranged outside via the connecting plate portion (21), and the second arm portion (24) is free. Edge side (rear edge side)
Are connected by a connecting portion (25) that is longer than the width of the first arm portion (20), and the operating portion (2) is connected onto the connecting portion (25).
It is also possible to integrally provide 6). Compared with the configuration shown in FIG. 2, this configuration may cause a slight enlargement in the longitudinal direction because the rear connecting portion (25) slightly projects rearward.
Enlargement in the longitudinal direction is prevented by projecting the connecting portion (25) upward at the side of the rising base portion (20a) of the inner first arm portion (20) to form the operating portion (26). .

Further, in FIG. 2, for example, two pairs of outer arm portions are formed instead of one pair, or the protrusions 23 for locking are abolished (the protrusion 16 on the mating side is required), and the hole 30 is formed on the mating side. It is also possible to engage the protrusions 16.
In this case, the locking surface 30a at the front end of the hole 30 acts as a locking portion. In addition, the curved surface 26b of the operation unit 26 (FIG. 4)
Is removed to make a right-angled intersection surface, or the lock portion 11 of FIG.
Can be cut at the center in the width direction to form a lock portion having one outer arm portion and one inner arm portion.

In the above embodiment, the board connector 1 has been described. However, the connector locking structure according to the present invention is not limited to the board connector 1, but may be a connector or a device for connecting wire harnesses as in the conventional example. It can also be applied to an attachment connector (not shown) or the like. Further, the lock portion 11 can be applied not only to the male connector but also to the female connector.

[0039]

As described above, according to the first aspect of the present invention, the starting base (fulcrum) of the first arm portion is extended without extending the second arm portion longer than the first arm portion.
Since the lock part and the operating part (power point) are provided at substantially the same position, the lock at the time of fitting the connector and the lock release at the time of disconnecting can be performed reliably and easily with a small force, so that the structure of the lock part is downsized. The connector itself can be reduced in size and weight, and there is no risk of the lock portion interfering with the outside to be deformed or damaged during transportation of the connector, which contributes to the improvement of quality.

According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, by pulling or pushing the operating portion in the longitudinal direction of the arm portion, the action of the lever surely and easily with a small force. Moreover, since each arm can be bent in the unlocking direction, operability and certainty at unlocking are improved.

According to the third aspect of the present invention, especially when unlocking, the second arm portion can be easily bent in the unlocking direction with a small operating force, so that the unlocking operation is further facilitated and made more reliable. To do.

According to the fourth aspect of the present invention, when the operating portion is pulled or pushed in the longitudinal direction of the arm portion when the lock is released,
The second arm portion can be reliably bent in the unlocking direction by the lever principle with the inclined surface serving as a fulcrum, and the unlocking property is further improved.

According to the fifth aspect of the present invention, the pair of second arm portions are stably supported by the free end side portions of the pair of first arm portions, and particularly when the lock is released, the operation portion is operated. Since the pair of second arm portions are uniformly bent with a large stroke, the lock release property is further improved.

According to the sixth aspect of the present invention, the connecting portion and the operating portion on the second arm portion side are located inside the rising base portion of the first arm portion, and are located above the rising base portion (arm portion flexure). Since only the operation part projects in the direction), the shape of the lock part is simplified and made compact in the height direction.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a board connector to which a connector locking structure of the present invention is applied.

FIG. 2 is an enlarged perspective view showing an embodiment of a lock portion.

FIG. 3 is a perspective view of the lock portion as viewed from the inside.

FIG. 4 is a side view showing a lock portion of the same.

FIG. 5 is a side view showing one form of a conventional connector locking structure.

FIG. 6 is a perspective view showing another form of a conventional connector lock structure.

FIG. 7 is a perspective view showing another form of a conventional connector lock structure.

FIG. 8 is a vertical sectional view showing a fitting lock state of the conventional connector.

[Explanation of symbols]

2 Male connector (one connector) 3 Female connector (other connector) 9 Board part (wall part) 11 Lock part 15 Upper wall (wall) 16 Protrusion (locked part) 20 First arm 20a Start-up base (fulcrum) 21 Connection plate part (connection part) 23 Protrusion 23b Locking surface (locking part) 24 Second arm part 25 Connection 26 Operation part 27 slits 28 Contact fulcrum (slope)

Claims (6)

[Claims] 1. A locking structure for a connector, wherein one connector is provided with a lock part and the other connector is provided with a locked part, and both connectors are locked at the same time as fitting.
The lock portion extends from a wall portion of the one connector to a first arm portion, and extends from a free end side of the first arm portion toward a start-up base portion of the first arm portion,
A second arm portion having a contact fulcrum with respect to the wall portion of the other connector, a locking portion located on the free end side, and a lock releasing member formed upright on the free end side of the second arm portion. The lock structure for a connector, comprising: 2. The first arm portion and the second arm portion are formed to have substantially the same length, and the operation portion is located above a side portion of the rising base portion. The lock structure of the connector according to 1. 3. The slit between the first arm portion and the second arm portion extends longer than the locking portion toward the free end side of the first arm portion. 1 or 2
Locking structure for the described connector. 4. The lock structure for a connector according to claim 1, wherein the contact fulcrum is an inclined surface. 5. A pair of the first arm portion and the second arm portion are respectively provided, each arm portion is connected by a connecting portion, and the connecting portion on the free end side of the second arm portion is connected to the connecting portion. The operation section is formed by being raised up.
4. The lock structure for a connector according to any one of 4 above. 6. The lock structure for a connector according to claim 5, wherein the first arm portion is located outside and the second arm portion is located inside.