JP2600796Y2 - Arm connection type connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arm connection type connector for connecting a connector using an arm leverage action.
You.

[0002]

2. Description of the Related Art This type of connector has an advantage that it can be connected with a small force even if it is a multi-pole connector because it utilizes the "lever action" of an arm. The general structure thereof is known, for example, in Japanese Patent Application Laid-Open No. 4-56084, and is roughly as follows.

That is, for example, a large number of male terminals are arranged in a fixed-side male connector housing, and a large number of female terminals are arranged in an insertion-side connector housing. An arm for performing the "lever action" is rotatably provided on the connector housing on the insertion side, and a cover provided with a cam projection engaging with the arm is mounted on the insertion side connector housing. For example, FIG. 10 (A)
And the cover 1 is positioned so as to cover the group of electric wires 3 led out from the connector housing 2 on the insertion side, and the opening edge 1a on the lower surface thereof is brought into contact with the peripheral edge of the connector housing 2. . Then, the arm provided on the connector housing (not shown) on the insertion side is engaged with the cam projection 4 provided on the cover 1, and the arm is rotated to the connection position in this state, whereby the arm The cover 1 and thus the connector housing 2 on the insertion side are pushed down by the "lever action" to connect the connectors.

[0004]

However, the above configuration has the following problems. (A) In the configuration utilizing the "lever action" of the arm, a strong push-down force acts on the cover 1 with the cam projection 4 as the point of action. It should be possible to make a connection state even with a multi-pole terminal group by this force, but on the other hand, since this force is quite strong, before the terminal group is completely connected, the opening edge 1a of the cover 1 is connected to the connector housing 2. 10B, and may be deformed as shown in FIG. Then, since the force for pushing down the connector housing 2 escapes, even if the arm is operated to the connection position, there is actually a risk that the terminal group may be left in an incomplete connection state.

(B) Since the cover 1 is set on the connector housing 2 so as to cover the group of electric wires 3, the electric wire 3 located on the upper surface of the connector housing 2 may be caught by the cover 1. In this case, the cam projection 4 of the cover 1
It is difficult to engage the connector with the arm, resulting in poor connection of the connector. Therefore, when the cover 1 is set, the work must be carefully performed so as not to pinch the electric wire 3, and the assembling workability is poor.

The present invention has been made in view of the above circumstances, and its object is to prevent the deformation of the cover and to reliably push down the connector housing, and to pinch the electric wires when setting the cover. It is an object of the present invention to provide a connector cover which can prevent the occurrence of the problem and improve the assembling workability.

[0007]

According to the present invention, a pair of connectors are provided.
One of the connector housings
Cover the surface from which the wire connected to the terminal
On the other connector housing.
Arm pulls the one connector housing
Arm connection type where both connector housings are connected
In the connector, the one connector on the cover
Of the opening edges that are in contact with the
Side toward the one connector housing side
Guide projections are provided along the
The corresponding side wall of the connector housing
The side of the cover opens outward and receives
It has a feature in that a storage hole for restricting shaping is formed .

[0008]

[Operation and effect of the present invention] The operation of the present invention is as follows.
You. When the cover is placed over one connector housing,
The guide projection provided on the bar is one connector housing
And the opposite side of the cover is outside
It is in a state where opening and deformation are restricted. others
To open both sides from the wire led out into the cover.
Even when subjected to force, it does not open outward and deform.
Between the cover and one connector housing
That the hook for locking provided in the
It is prevented beforehand. Also, the arm pushes down the cover
Cover, the cover is connected to one connector housing.
Prevents outward deformation by sliding against the housing
The pressing force does not escape and both connector housings
There is no danger of inferior bonding of the housing. In addition, Guy
Positioning tool for one connector housing
Demonstrates excellent performance in cover mounting work.

[0009]

[0010]

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. The overall structure is shown in FIG. 9. A male terminal (not shown) is provided in the fixed-side connector housing 11, which is held by a retainer 12. A female terminal (not shown) is provided in the connector housing 13 on the insertion side, and this is held by a retainer 14. Above the fixed side connector housing 11, a bipedal arm 15 is provided rotatably around a bearing hole 15a. The distal end of the arm 15 is continuous in a bridge shape, and a U-shaped short bar 16 is provided between the distal ends through the bridge 15b.

A cover 17 is provided on the connector housing 13 on the insertion side. This has a shape that covers a group of electric wires 18 (shown in FIGS. 6 and 7) connected to the female terminal of the connector housing 13, and the group of electric wires 18 is led out from the right side in FIG. The side upper surface is slanted downward and tapered. Engagement pieces 19 having two engagement holes 19a are provided on both right and left sides of the cover 17 so as to project downward, and engage with engagement projections 20 provided on the side of the insertion-side connector housing 13. It is supposed to. In this state, the cover 17 is positioned so as to cover the group of electric wires 18 led out from the connector housing 13 on the insertion side, and the opening edge portion 17a on the lower surface thereof is in contact with the peripheral edge of the upper surface of the connector housing 13.

A pair of cam projections 22 project laterally at the center of the side of the cover 17. This is because when the connector on the insertion side is inserted into the connector on the fixed side with the cover 17 attached, the two cam grooves 23 formed near the base of the arm 15 are engaged. When the arm 15 is rotated in the combined state, the connector housing 13 on the insertion side is pushed down, and the connector can be completely connected. The situation is as illustrated in FIG. First, the insertion-side connector housing 13 with the cover 17 attached thereto is moved to the fixed-side connector housing 11 with the arm 15 tilted forward as shown in FIG. Then, as shown in FIG.
Enters the cam groove 23 of the arm 15. Therefore, when the arm 15 is rotated in the direction of the arrow, the cam projection 22 is introduced into the cam groove 23, and is pushed by the edge of the cam groove 23, so that the cam projection 22 and the entire cover 17 are strongly pushed down. As a result, the insertion-side connector housing 13 is pushed down by the cover 17, and the female terminal group provided here and the male terminal group provided in the fixed-side connector housing 11 are connected. Then, when the state shown in FIG. 2D is reached via the state shown in FIG. 2C, both terminal groups are completely connected.

On the other hand, as is apparent from FIG. 4, a moderating projection 24 for projecting the arm 15 at a completely connected position is provided on the left and right side surfaces near the rear of the cover 17, and the arm 1
5 is rotated from the state shown in FIG. 8 (C) to the state shown in FIG. 8 (D), the short bar 16 provided on the arm 15 rides upward from below while elastically expanding. As a result, the arm 15 is held at the lock position shown in FIG.

A pair of detection terminals 26 are attached to the cover 17 to detect that the arm 15 is at the lock position. This is because the detection terminals 26 and the electric wires 18 connected to the detection terminals 26 are provided on both left and right sides of the cover 17.
And a lid 29 is integrally molded via two self-hinge portions 28, and the detection terminal 26 is stored in the storage recess 27 and the lid 29 is covered. It is fixed by this. When the arm 15 is operated to the lock position, the two detection terminals 26 are short-circuited by the short bar 16, and based on this, it is detected that the arm 15 is at the lock position. In addition, two protection ridges 3 are provided near the rear end of the upper surface of the cover 17.
0 is protrudingly provided, so that it is possible to prevent electric wires and the like from being caught on the arm 15 located behind the arm 15 at the lock position.

As shown in FIG. 1, two guide projections 31 are respectively provided on the left and right sides of the opening edge 17a of the cover 17 between the two engagement pieces 19 arranged in front and rear. And is slightly longer than each engagement piece 19. A storage hole 32 is formed at a position corresponding to the guide protrusion 31 in the peripheral edge of the upper surface of the insertion-side connector housing 13. When the cover 17 is set, each guide protrusion 31 is inserted into the storage hole 32. It has become.

When the cover 17 is set, as shown in FIG. 2, the tip of the guide projection 31 first enters the storage hole 32, and the cover 17 is positioned with respect to the connector housing 13. Also, as shown in FIG. 6, a group of electric wires 18 on the upper surface of the connector housing 13
1 removes it from the periphery and moves it to the center. Then, when the cover 17 is further pressed down from this state, the engaging hole 19a of the engaging piece 19 encounters the engaging protrusion 20 of the connector housing 13, and engages with this, so that the cover 17 is (See FIGS. 3 and 7). In this state, the opening edge 17 of the cover 17
a is engaged with the housing hole 32 of the connector housing 13 by the guide projection 31,
Is restricted. Therefore, in this type of connector device, the arm 1 is attached to the cam projection 22 of the cover 17.
5, the opening edge 17a of the cover 17 moves sideways even if a strong pressing force
Deformation as shown in FIG. 0 (B) is prevented beforehand. For this reason, the force from the arm 15 does not escape to the connector housing 13 and the connector can be sufficiently coupled. 6 and 7
As shown in FIG.
The guide projections 31 can easily prevent the electric wire 18 from being caught between them, so that the work of assembling the cover 17 is simplified, and the work for connector connection can be smoothly performed.

As described above, according to the configuration of the present embodiment, the following effects can be obtained.

(A) Since the cover 17 is engaged with the connector housing 13 by the guide projection 31, the opening edge 17 a of the cover 17 is not deformed and the force from the arm 15 is not released, so that the connector can be used. It can always be completely connected.

(B) The cover 17 is connected to the connector housing 1
At the time of setting to 3, the guide protruding piece 31 exerts a positioning action with respect to the connector housing 13, so that the workability of assembly is improved. In addition, since the electric wires 18 that are bitten by the cover 17 can be brought to the center by the guide projections 31, the workability of assembling is further improved on that surface.

(C) In this embodiment, in particular, the cover 1
7. Since two protective ridges 25 are protruded near the rear end of the upper surface of the upper surface, the protective ridges 25 are located immediately after the arm 15, so that wires and the like are placed on the arm 15 in the locked position. It can be prevented from getting stuck.

The present invention is not limited to the embodiment described above and shown in the drawings. For example, an engaging claw for engaging a cover with a connector housing is provided on a guide projection, and Various modifications can be made without departing from the gist, such as a configuration in which the joint piece 19 is omitted.

[Brief description of the drawings]

FIG. 1 is a side view of a cover and a connector housing showing an embodiment of the present invention.

FIG. 2 is a side view showing a mounting process of a cover.

FIG. 3 is a side view showing a state where the cover is completely mounted.

FIG. 4 is a perspective view of a cover showing a fixing structure of the detection terminal.

FIG. 5 is a plan view of the same.

FIG. 6 is a vertical cross-sectional view showing the mounting of the cover.

FIG. 7 is a longitudinal sectional view showing a state after the cover is attached.

FIG. 8 is a schematic side view showing a connecting process of the connector.

FIG. 9 is an overall exploded perspective view.

FIG. 10 is a longitudinal sectional view showing a conventional cover.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 13 ... Connector housing 15 ... Arm 17 ... Cover 17a ... Opening edge 18 ... Electric wire 22 ... Cam protrusion 31 ... Guide protrusion 32 ... Storage hole

Claims (1)

(57) [Scope of request for utility model registration] A cover provided on a surface of the connector housing from which an electric wire connected to the terminal is led out, and an arm provided on the other connector housing with an opening edge of the cover abutting against a peripheral edge of the connector housing. An arm connection type connector for connecting a connector by pressing down a cover, wherein a guide projection toward the connector housing is provided on an opposite side of an opening edge of the cover, and the guide is provided on the connector housing. A connector cover for an arm connection type connector, wherein a storage hole for receiving a protruding piece is formed.