JP2905385B2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector in which a rear holder for preventing a terminal fitting housed in a terminal housing from coming off is locked at a rear end.

[0002]

2. Description of the Related Art FIG. 3 and FIG.
7 shows a connector 1 described in Japanese Patent Application Publication No. 7-No. The connector 1 is assembled to a connector housing 3 in which a terminal accommodating chamber for accommodating the terminal fitting is formed, and is attached to the wire drawing side (rear end) of the connector housing 3 to prevent the terminal fitting from coming out of the terminal accommodating chamber. And a rear holder 5. On the side wall 3a of the connector housing 3, a projection 7 for locking the rear holder is provided. This rear holder locking projection 7
Are flexible locking frames 9 formed on both sides of the rear holder 5.
Is locked in the locking hole 11 constituted by.

In order to remove the rear holder 5 from the connector housing 3, a jig is inserted between the locking frame 9 and the side wall 3a of the housing 3 to forcibly bend the locking frame 9 to lock the rear holder. It can be easily removed by removing the projection 7 from the locking hole 11.

[0004]

However, when an engaging portion (locking projection lamp) for locking the connector 1 to the panel mounting hole is provided in the vicinity of the rear holder locking projection 7, it is difficult to recover. Fixing frame and connector housing 3
And the connector 1 may be damaged if it is forcibly inserted. Even if it can be inserted between the flexible locking frame 9 and the side wall 3a of the connector housing 3, the work space for bending the flexible locking frame 9 with the jig is narrow, Poor workability.

Therefore, the present invention provides a connector having a rear holder locking projection near a panel locking engaging portion without breaking the connector and preventing the rear holder from engaging with the rear holder locking projection. An object of the present invention is to provide a connector which can be easily released.

[0006]

According to the first aspect of the present invention, the housing is provided on the housing body.
Mating part that is shorter in width than the connector body and mates with the mating connector
Are provided integrally with the housing body and the fitting portion.
A connector having a terminal accommodating chamber for communicating with a terminal.
Lock the housing and one end of the U-shaped rear holder body.
A flexible frame portion on which a hook is formed and an engagement hole is formed at the other end.
Is mounted on the housing main body and the terminal
With the rear holder that prevents the terminal from coming out of the chamber
And flexible on both sides of the housing body for panel locking.
Of the housing body
Projection for locking the rear holder from the part toward the locking arm
The locking claw is engaged with the housing body and
Between one side of the housing body and one locking arm
Insert the frame and insert the rear holder locking projection into the locking hole.
The rear holder is assembled to the housing body by engaging
A connector for securing the rear holder.
Release jig for releasing the locking state between the projection and the rear holder
Is guided from the direction opposite to the locking direction of the rear holder
Lock the rear holder release groove on one side of the housing body.
Provided at the base of the arm
The tip of the released jig comes into contact and slides, and the frame
The flexible surface is bent to release the locked state.
It is characterized in that it is provided at the end of the frame .

[0007]

[0008]

[0009]

According to the first aspect of the present invention, when the release jig is inserted into the rear holder release groove and approaches the rear holder,
The tip of the release jig contacts the inclined surface of the end of the locking frame. Furthermore, when the release jig is inserted deep into the rear holder release groove, the leading end of the release jig slides on the inclined surface, so that the locking frame is forcibly bent, and the rear holder locking projection is formed. Withdrawing from the locking hole, the locked state is released.
As a result, the rear holder comes off the connector housing. In this case, since the engagement portion between the engagement hole and the rear holder engagement projection is only on one side, the rear holder can be detached from the connector housing with one touch.

[0010]

[0011]

[0012]

Embodiments of the connector according to the present invention will be described below. FIG. 1A shows a connector 1 according to an embodiment of the present invention.
Exploded perspective view showing a 3, FIG. 1 (b) is a perspective view of a partially enlarged in FIG. 1 (a). FIGS. 2A and 2B are cross-sectional views showing a procedure for removing the rear holder 15 from the connector 13. FIG.

[0013] As shown in FIG .
A connector housing 17 having a terminal accommodating chamber 12 in which a plurality of terminal fittings 10 (see FIG. 2) are accommodated;
A rear holder 15 is attached to the rear end of the connector housing 17 (on the side from which the electric wire is drawn) and prevents the terminal fitting 10 from coming out of the terminal accommodating chamber 12.

The connector housing 17 has a trapezoidal cross-sectional shape, and is formed by integrally molding a fitting portion 19 to be fitted with a mating connector and a housing body 21 having a plurality of terminal accommodating chambers 12 formed therein. . On both sides of the housing body 21, locking arms (engaging portions) 25 for locking the connector housing 17 into the mounting holes 23 of the panel P (see FIG. 2) are formed, respectively. As shown in FIG. 2, these locking arms 25, 25 are locked with locking step portions 27 at the opening edges of the mounting holes 23 of the panel P. On one side wall 29 of the connector housing 17, a rear holder locking projection 31 protrudes toward the locking arm 25 on the rear end face side of the connector housing 17. The rear holder locking projection 31 is a slope 3 that is inclined upward from the rear end face of the connector housing toward the fitting portion 19.
3, the engaging portion 19 side is formed with a locking surface 35 rising from the side wall 29. The rear holder locking projection 31
Is inserted and locked in a locking hole 49 of the rear holder 15 described later.

Furthermore, the connector housing 1 of the present embodiment
7, a release groove 37 is formed in one of the side walls 29. The rear holder release groove 37 is formed linearly from the rear end of the connector housing 17 toward the fitting portion 19, passes through the side of the connector locking projection 31, and Through the base portion, the fitting portion 19
Open to the side. The opening 20 on the fitting portion side is
It is continuous with the opening 22 having a width smaller than 0, and the openings 20 and 2
Reference numeral 2 substantially communicates with the rear holder locking projection 31. A release jig 39 is inserted from the opening 20 and is formed wider than the opening 22, thereby securing a working space for the release jig 39.

The other side wall 41 has a rear holder locking groove 43 formed therein. This rear holder locking groove 43
Is linearly formed from the rear end side of the connector housing 17 toward the fitting portion 19 side, and penetrates the root portion of the locking arm 25 and opens to the fitting portion 19 side.

The rear holder 15 has a U-shaped rear holder body 45, lock claws 47, 47 provided at one end of the rear holder body 45, and a connector locking projection 31 provided at the other end. It is formed by a flexible frame portion 51 which forms a locking hole 49 to be inserted and locked. This frame part 5
At one end, an inclined surface 53 that is inclined upward toward the rear holder body 45 is formed. This inclined surface 53 is
By sliding on the inclined surface 33 of the connector locking projection 31, the frame portion 51 is forcibly bent outward.

Next, a procedure for assembling the rear holder 15 to the connector housing 17 will be described. First, the lock claw 4 of the rear holder 15 is inserted into the rear holder locking groove 43.
7, 47 are inserted and locked. Next, the rear holder 15 is rotated around these lock claws 47, 47 to bring the frame 51 closer to the connector locking projection 31 side. And
When the rear holder 15 is further rotated after the inclined surface 53 of the frame portion 51 is brought into contact with the inclined surface 33, the frame portion 51 is forcibly bent outward, and when it climbs over the top portion 55, the frame portion 51 has the original shape And the locking hole 49 is provided with the rear holder locking projection 3.
1 and locked. Thereby, the rear holder 15 can be assembled to the connector housing 17.

Next, a case where the rear holder 15 assembled to the connector housing 17 is removed by using a release jig 39 will be described. First, the release jig 39 is inserted into the release groove 37 from the opposite direction to the locking direction of the rear holder 15, that is, from the fitting portion 19 side. Then, the distal end 39 a of the release jig 39 is brought into contact with the inclined surface 53 by moving toward the frame 51 side. Further, when the release jig 39 is moved in the same direction to pass through the side of the rear holder locking projection 31 and penetrate under the frame portion 51, as shown in FIG. The flexible frame portion 51 bends and the locking hole 49 is pulled out from the rear holder locking projection 31. As a result, the locked state of the rear holder 15 to the connector housing 17 is released, and the lock claw portion 47 is pulled out from the rear holder locking groove 43, whereby the rear holder 15 can be removed from the connector housing 17.

After the distal end 39a of the release jig 39 is inserted between the frame 51 and the side wall 29, the release jig 3
By inclining the frame 9, the frame portion 51 may be forcibly bent to pull out the rear holder locking projection 31 from the locking hole 49. In this case, since the release groove 37 is formed wide, a work space is secured, and the frame 51 can be easily bent.

As described above, according to the present embodiment, by providing the release groove 37, the rear holder locking projection 31 is provided.
, The release jig 39 can be easily inserted between the connector housing 17 and the flexible frame 51 even if the locking arm 25 for panel locking is located near the frame 51. The rear holder locking projection 31 can be easily pulled out from the locking hole 49. Further, since the working space for the release jig 39 is ensured, the connector housing 17 and the locking arm 25 are not damaged.

Further, in this embodiment, by providing the inclined surface 53, the frame portion 51 can be easily bent simply by moving the release jig 39 along the release groove 37, and the connector housing 17 can be bent. The locked state of the rear holder 15 can be easily released.

According to the present embodiment, the release jig 39 is used.
Is not forcibly inserted between the frame portion 51 and the connector housing 17, so that the connector housing 17 and the rear holder 15 are not damaged and individual differences in the work of the operator can be reduced.

[0024]

As described above, according to the first aspect of the present invention, the connector housing and the rear holder are not damaged by the release jig, and the state of engagement of the rear holder with the connector housing can be easily determined. Can be canceled. Further, the release jig guided by the rear holder release groove can be easily inserted between the flexible frame forming the engagement hole and the connector housing. Can be easily released from the locked state with the connector housing. Furthermore, by contacting and sliding the tip of the release jig guided by the rear holder release groove on the inclined surface provided at the end of the frame, the frame can be easily bent, Moreover, since the engagement portion between the engagement hole and the rear holder engagement protrusion is only on one side, the rear holder can be easily removed from the connector housing with one touch.

[0025]

[0026]

[Brief description of the drawings]

FIG. 1 shows an embodiment of a connector according to the present invention, wherein (a)
Is a perspective view showing a connector housing and a rear holder,
(B) is an enlarged perspective view showing a state where the rear holder is locked to the connector housing.

FIGS. 2A and 2B show a procedure for releasing a locked state of a rear holder from a connector housing; FIG. 2A is a cross-sectional view showing a state in which a release jig is inserted into a rear holder releasing groove; FIG. 4 is a cross-sectional view showing a state in which the locking of is released.

FIG. 3 is a side view showing a relationship between a connector housing and a rear holder in a conventional connector.

FIG. 4 is a side view showing a connector housing of a conventional connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Terminal fitting 12 Terminal accommodating room 13 Connector 15 Rear holder 17 Connector housing 25 Locking arm (engaging part) for panel locking 31 Rear holder locking projection 37 Release groove 39 Release jig 45 Rear holder body 49 Locking Hole 51 Flexible frame 53 Slope

Claims (1)

(57) [Claims] 1. A housing body having a housing body
The width is short, and the fitting part that fits with the mating connector is
The housing body and the fitting portion
Connector housing with terminal receiving chamber for receiving child
A lock claw is formed at one end of the U-shaped rear holder body.
A flexible frame portion is formed at the other end to form an engagement hole.
Terminals from the terminal storage chamber assembled to the housing body
And a rear holder for preventing the panel from coming off.
A locking arm protrudes from one side of the housing body toward the locking arm.
A projection for locking the rear holder is provided , and the locking claw is engaged with the housing main body.
Insert the frame between one side of the main body and one locking arm.
And the rear holder locking projection is engaged with the locking hole.
A connector in which the rear holder is assembled to the housing main body , wherein a locking state between the rear holder locking projection and the rear holder is provided.
The release jig for releasing the state
Insert the rear holder release groove guided from the opposite direction
At the base of one locking arm of the
The tip of the release jig guided by the holder release groove
Contact and slide to flex the frame to release the locked state
A connector , wherein an inclined surface is provided at an end of the flexible frame portion .