JPH07226284A - Connector terminal pulling-out jig - Google Patents

Abstract

PURPOSE:To provide a newly invented connector terminal pulling-out jig by which a rance of a connector terminal is not broken at all at the time when the connector terminal inserted into a terminal storing hole is pulled out or when the pulled-out connector terminal is inserted again into the terminal storing hole. CONSTITUTION:In order to release the joining state of an insertion tip part 11 with a joining hole by pushing down a rance of a connector terminal, a touching part 12, which touches the edge part of the joining hole in the external face of a connector housing and keeps the insertion degree of the insertion tip part 11 constant, is formed in the base part of the insertion tip part 11, which is inserted into the joining hole. The cross-section of the insertion tip part 11 may be formed into a taper-shape to cut and raise the rance at a prescribed angle. The width W1, W2 of the insertion tip part is made to be almost the same as the width of the joining hole in the prescribed direction. As a result, a connector terminal can be pulled-out or inserted again without breaking the rance and these works are done surely and the work efficiency of wiring work of connectors is thus improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel connector terminal removing jig for removing a connector terminal that is prevented from coming off from a connector housing and removing the connector terminal from the connector housing.

[0002]

2. Description of the Related Art Conventionally, in the connector shown in FIGS. 5 (a) and 5 (b), a terminal body 41 of a connector terminal 4 to which an electric wire 3 is connected is inserted into a terminal accommodating hole 51 of a connector housing 5 and Lance 42 cut and raised from 41,
The connector housing 5 is assembled by engaging the engaging holes 53 penetrating from the outer surface 52 of the connector housing 5 to the terminal accommodating holes 51 to prevent the terminals from coming off.

When assembling the above connector, if the connector terminal 4 is inserted with the terminal receiving hole 51 wrong,
For example, by inserting a small flathead screwdriver or the like into the engagement hole 53 and pushing down the lance 42,
And the engagement hole 53 are disengaged. Then, after pulling the electric wire to pull out the connector terminal 4, the lance 42 is raised with a tip of a flat-blade screwdriver or the like, and the lance 42 is inserted again into the correct terminal accommodating hole 51.

[0004]

As described above, a lance 42 of the connector terminal 4 is used by using a flat-blade screwdriver or the like.
When pushing down, since the amount of pushing down depends on the operator's feeling, there is a risk that the lance 42 may be pushed down more than necessary and folded.

Also, after the connector terminal 42 is pulled out from the connector housing 5, even when the lance 42 is raised by the tip of a flat-blade screwdriver, the angle of the rise depends on the operator's sense, so the lance 42 is raised too much and folded. There was a risk that For this reason, conventionally, the lance breakage frequently occurs when the connector terminal is pulled out or reinserted, and the connector terminal must be replaced every time, so that there is a problem that the work efficiency of the connector wiring work is poor. .

The present invention has been made on the basis of such background art, and when the connector terminal inserted in the terminal accommodating hole is pulled out, or when the extracted connector terminal is reinserted into the terminal accommodating hole, etc. It is an object of the present invention to provide a new connector terminal removing jig that does not have a risk of breaking the terminal lance.

[0007]

The invention according to claim 1 is
The terminal main body is inserted into the terminal accommodating hole of the connector housing, and the lance cut and raised from the terminal main body is engaged with the engaging hole penetrating from the outer surface of the connector housing to the terminal accommodating hole. In a connector terminal removing jig for releasing the engagement and extracting from the terminal accommodating hole, a tip insertion portion to be inserted into the engagement hole in order to push down the lance to release the engagement with the engagement hole. ,
When the tip insertion portion is inserted into the engagement hole, the connector housing is provided with an abutment portion that abuts an edge portion of the engagement hole on the outer surface of the connector housing to make the insertion amount of the tip insertion portion constant. It is what

According to a second aspect of the present invention, in the connector terminal removing jig, the cross section of the tip insertion portion is formed in a taper shape for cutting and raising the lance of the connector terminal at a predetermined angle. It is what Further, in the invention of claim 3, in the connector terminal extracting jig, the width of the tip insertion portion in at least one direction is formed to substantially match the width of the engaging hole of the connector housing in at least one direction. It is characterized by that.

[0009]

According to the connector terminal removing jig of the present invention, when the tip insertion portion is inserted into the engagement hole, the contact portion comes into contact with the edge portion of the engagement hole on the outer surface of the connector housing, Since the insertion amount of the tip insertion portion is made constant, the pressing amount of the lance by the tip insertion portion is always made constant regardless of the operator's feeling. Therefore, the lance is prevented from being pushed down too much and broken.

Further, when the tip insertion portion has a tapered cross section, when the tip insertion portion is inserted between the lance pushed down to release the engagement and the connector terminal body, the lance works. It is raised at a constant angle that is almost the same as the taper angle, regardless of the person's feeling. For this reason,
It prevents the lance from being raised too much and breaking.

Further, when the width of the tip insertion portion in at least one direction is formed to have a size that substantially matches the width of the engagement hole of the connector housing in at least one direction,
Since the jig can be inserted into the engaging hole of the connector housing without rattling, the work of removing the connector can be performed more smoothly.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. First, the connector terminal extracting jig G of the embodiment shown in FIGS. 1 (a) to 1 (d) will be described. The connector terminal extracting jig G shown in FIG.
As shown in (a) and (b), the engaging hole 5 of the connector housing 5
It is composed of a cylindrical jig body 1 which becomes the tip insertion portion 11 to be inserted into the jig 3, and a grip portion 2 attached to the base end side of the jig body 1.

The tip insertion portion 11 of the jig body 1 is formed in a triangular prism shape having an outer size smaller than that of the jig body 1, and the step surface between the tip insertion portion 11 and the jig body 1 is a tip insertion portion. When 11 is inserted into the engagement hole 53, the outer surface 52 of the connector housing 5 comes into contact with the edge portion of the engagement hole 53 to form the contact portion 12 that makes the insertion amount of the tip insertion portion 11 constant. There is.

In the case of the jig G of the embodiment, the insertion amount of the tip insertion portion 11 defined by the contact portion 12 corresponds to the length L of the tip insertion portion 11 beyond the contact portion 12. . In the case of the embodiment, the length L, that is, the insertion amount of the distal end insertion portion 11 is set to be equal to or slightly longer than the wall thickness T of the connector housing 5 near the edge of the engagement hole 53. However, it can be appropriately set according to the size, structure, etc. of the connector terminal 4 and the connector housing 5.

The tip insertion portion 11 has a triangular prism shape as described above, and the two surfaces 11a and 11b sandwiching the most acute angle α form the lance 42 of the connector terminal 4 at a predetermined angle (angle α). Matches the angle of) has become a tapered surface that constitutes the taper for cutting and raising. The angle α can be appropriately set according to the size, structure, etc. of the connector terminal 4.

Further, the tip insertion portion 11 is provided with a connector housing.
So that it is inserted into the engagement hole 53 of the housing 5 without rattling.
In addition, of the perpendicular line of the triangular prism on the bottom opposite from the corner α
Direction width W₁Is connected to the engaging hole 53 shown in FIG. 5 (a).
Width W in the insertion direction of the terminal 4₃Formed to dimensions that closely match
And the width W in the direction of the base of the triangular prism ₂
Is the width W of the engagement hole 53₃In the direction orthogonal to
Width W_FourIs formed to have a size that substantially matches with.

To remove the connector terminal 4 inserted into the terminal accommodating hole 51 of the connector housing 5 using the connector terminal removing jig G of the above embodiment, first, FIG.
, The terminal body 41 of the connector terminal 4 to be removed
The tip insertion portion 11 of the connector terminal extracting jig G is inserted into the engagement hole 53 connected to the terminal receiving hole 51 into which the connector is inserted, as indicated by the white arrow in FIG.

Then, as shown in FIG. 2B, the tip insertion portion is formed until the contact portion 12 of the connector terminal extracting jig G comes into contact with the edge portion of the engaging hole 53 of the outer surface 52 of the connector housing 5. When 11 is inserted, the tip insertion portion 11 pushes down the lance 42 of the connector terminal 4, and the engagement between the lance 42 and the engagement hole 53 of the connector housing 5 is released.

In this state, when the electric wire 3 is pulled in the direction shown by the black arrow in the figure, the connector terminal 4 can be pulled out from the terminal accommodating hole 51. In order to insert and engage the connector terminal 4 extracted from the terminal accommodating hole 51 into another terminal accommodating hole 51 again, it is necessary to raise the lance 42 in the depressed state as shown in FIG. 3 (a). .

In order to raise the lance 42 by using the connector terminal extracting jig G of the embodiment, first, as shown by a black arrow in the figure, the lance 42 is placed with the most acute angle α of the tip insertion portion 11 first. And the terminal body 41. Then, as shown in FIG. 3 (b), due to the taper formed by the two taper surfaces 11a and 11b of the tip insertion portion 11 that sandwich the angle α, the lance 42 is made to have an angle substantially the same as the angle α. woken up.

As described above, by using the connector terminal extracting jig G of this embodiment, the connector terminal 4 can be pulled out from the terminal receiving hole 51 of the connector housing 5 by pushing down the lance 42 without breaking it. . Further, it is possible to raise the extracted connector terminal 4 at a predetermined angle without breaking the lance 42. The tip insertion part 11 is
It may not have the function of causing a depressed lance. FIGS. 4 (a) to 4 (c) show an embodiment of the connector terminal extracting jig G in which the tip insertion portion 11 does not have a function of causing a depressed lance.

As shown in the drawing, in the connector terminal extracting jig G of the embodiment, the tip insertion portion 11 is formed in a cylindrical shape having a smaller diameter than the jig body 1, and the tip insertion portion 11 and the jig body are formed. The difference from the previous one is that the stepped surface with respect to 1 is the contact portion 12. A grip portion 2 is attached to the base end side of the jig body 1. The tip insertion portion 11 is
The width W ₅ is formed so as to substantially match the width W _{4 of the} engagement hole 53 shown in FIG. 5A so that the connector housing 5 can be inserted into the engagement hole 53 without rattling.

If the connector terminal removing jig G of the above-mentioned embodiment is used, the lance 42 is pushed down without breaking and the connector terminal 4 is pulled out from the terminal accommodating hole 51 of the connector housing 5 as in the previous embodiment. be able to. Other jigs may be used to raise the depressed lance 42. Further, the contact portion of the connector terminal extracting jig G may be configured not by the stepped surface between the tip insertion portion and the jig body, but by a collar or the like projecting from the base portion of the tip insertion portion.

Besides, the present invention can be variously modified within the scope of the claims without being limited to the description of the embodiments.

[0025]

According to the connector terminal removing jig of the present invention, when the connector terminal inserted into the terminal accommodating hole is extracted, or when the extracted connector terminal is reinserted into the terminal accommodating hole, Never break a lance. Therefore, the connector terminals can be pulled out and reinserted more reliably without causing lance breakage, and the work efficiency of the connector connection work can be improved. Further, if the width of the tip insertion portion in at least one direction is formed so as to approximately match the width of the engagement hole of the connector housing in at least one direction, the tip insertion portion can be inserted into the engagement hole without rattling. Therefore, the connector terminal can be pulled out more smoothly.

[Brief description of drawings]

FIG. 1 (a) is a perspective view showing an embodiment of a connector terminal extracting jig of the present invention, and FIGS. 1 (b) to (d) are main parts of the connector terminal extracting jig of the above embodiment. FIG. 3 is an enlarged three-view drawing of the vicinity of the tip insertion portion.

FIGS. 2 (a) and 2 (b) show that the lance of the connector terminal is pushed down by using the connector terminal extracting jig of the above embodiment to disengage the lance from the engagement hole of the connector housing. It is sectional drawing which shows operation.

3 (a) and 3 (b) are cross-sectional views showing a work of raising a depressed lance of a connector terminal by using the connector terminal extracting jig of the above embodiment.

FIG. 4 (a) is a perspective view showing another embodiment of the connector terminal extracting jig of the present invention, and FIGS. 4 (b) and (c) are main parts of the connector terminal extracting jig of the above embodiment. FIG. 3 is an enlarged two-side view of the vicinity of the tip insertion portion, which is

FIG. 5A is a perspective view showing a connector in which the connector terminal extracting jig of the present invention is used, and FIG. 5B is a sectional view of the connector.

[Explanation of symbols]

 G Connector terminal removal jig 11 Tip insertion part 12 Abutment part

Claims (3)

[Claims] 1. A terminal main body is inserted into a terminal accommodating hole of a connector housing, and a lance cut and raised from the terminal main body is engaged with an engaging hole penetrating from the outer surface of the connector housing to the terminal accommodating hole. In a connector terminal extracting jig for releasing the engagement and extracting the connector terminal from the terminal accommodating hole, the connector terminal is inserted into the engaging hole in order to push down the lance and release the engagement with the engaging hole. And a distal end insertion portion that contacts the edge of the engagement hole on the outer surface of the connector housing when the distal end insertion portion is inserted into the engagement hole,
A connector terminal extracting jig, comprising: an abutting portion that makes the insertion amount of the tip insertion portion constant. 2. A connector terminal extracting jig according to claim 1, wherein the cross section of the tip insertion portion is formed in a taper shape for cutting and raising the lance of the connector terminal at a predetermined angle. It is a thing. 3. The connector terminal removing jig according to claim 1, wherein the width of the tip insertion portion in at least one direction is formed to substantially match the width of the engaging hole of the connector housing in at least one direction. It is characterized by being present.