JPH11135193A - Structure for lever-fixing part of electrical connection box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure for a lever-fixing part of an electrical connection box, in which a lever having a guide groove will not be fitted by mistake on a spindle boss furnished on an upper case. SOLUTION: In a structure for a lever-fixing part of an electrical connection box 1 equipped with a connector part 5, a pair of spindle bosses 6a and 6b having different outside diameters are furnished on the upper case 3 of the electrical connection box 1, and a lever 7 rotatably furnished with an arc-shaped guide groove 8 is pivoted on the bosses. A mating connector 9 to be fitted to the connector part 5 is attached to a lower case 4, and in the central part of the mating connector 9, a guide column 9a in a prism shape is installed protrusively in the fitting direction, and a guide pin 10 to be engaged by the guide groove 8 is installed protrusively at the forefront of a sidewall. When the guide pin 10 is engaged with the groove 8 and the lever 7 is rotated, the guide pin 10 guided by the groove 8 makes the mating connector 9 move in the direction of generating the fit with the connector part 5, and by further rotating the level 7, the mating connector 9 can be made to fit perfectly to the connector part 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for fixing a lever of an electric connection box, and more particularly, to an electric connection capable of easily fitting a connector to an electric connection box used for connecting a wire harness of an automobile or the like. The present invention relates to a structure for fixing a lever of a box.

[0002]

2. Description of the Related Art FIG. 4 shows a known structure of a lever fixing portion of an electric junction box. The lever fixing part structure 52 of the conventional electric connection box 51 shown in FIGS.
The upper case 53 is provided with a pair of support shaft projections 56, 56, and a lever 57 provided with an arc-shaped guide groove 58 on the support shaft protrusion is rotatably pivoted. Also, the connector section 5
5 is detachably attached to the lower case 54, and a prismatic guide post 9a is provided along the fitting direction of the mating connector 59, and the guide post 9a is engaged with the guide groove 58 on the side surface of the guide post. Guide pins 60 are protruded.

The support shaft projections 56, 56
A pair of shaft holes 57a, 57a, which are provided inside a pair of holding side plates 53a provided on the top 3 and are rotatably connected to the shaft protrusions, are provided on both sides of the lever 57. It is provided on the cam side plates 57b, 57b. Also,
Above the shaft hole 57a of the cam side plate 57b, there is provided a shaft projection dodging groove 57c which escapes upward. The guide groove 58 is provided inside the cam side plate 57b, and a notch portion 58a through which the guide pin 60 can pass is provided at the lower end of the guide groove 58 so as to pass downward. Further, the lever 57 is provided with an operation lever portion 57d as a rotation operation portion for facilitating the rotation.

In the lever fixing portion structure 52 of the electric connection box 51 having the above-mentioned structure, the guide pin 60 is engaged with the guide groove 58 in order to operate the lever 57 to fit the mating connector 59 into the connector portion 55. Then, the lever 57 is rotated. As a result, the guide pin 60 is
And the mating connector 59 is moved in a direction in which the mating connector 59 is fitted with the connector portion 55. When the lever 57 is further rotated, the mating connector 59 is completely fitted with the connector portion 55.

More specifically, the operating lever portion 57d of the lever 57 faces upward, and is moved from right to left in FIG.
6, the shaft projection 56 is fitted into the shaft hole 57a. However, this work is performed using a special jig.
It is necessary to carry out while expanding the pair of upper holding side plates 53a. Next, after the lever 57 is rotated rightward in FIG. 5 to level the operation lever portion 57d, the upper case 53 is overlaid on the lower case 54 and slightly pressed, so that the guide pin 60 passes through the cutout portion 58a. Into the lower end of the guide groove 58. When the operation lever portion 57d is rotated leftward in the drawing, the guide pin 60 is pulled up in the guide groove 58, and the mating connector 59 is fitted with the connector portion 55.

That is, with the rotation of the operation lever 57d, the guide pin 60 guided by the guide groove 58 is moved so as to gradually approach the support shaft projection 56, and the opposing lever is driven by the small turning force of the operation lever 57d. The connector 59 can be easily fitted to the connector portion 55. Therefore, a remarkable effect appears when the mating connector 59 and the connector portion 55 are multipolar connectors that require a large force for fitting and disengaging. In order to disconnect both connectors, the operation lever 57d is turned to the right in the drawing to connect the mating connector 5d.
9 can be easily separated from the connector 55.

[0007]

However, in the conventional lever fixing portion structure 52 of the electric connection box 51, as shown in FIG.
Even if 7c is fitted into the support projection 56 from the left side of the holding side plate 53a in the drawing, the support projection 56 is fitted into the support hole 57a. Therefore, the lever 57 is erroneously fitted into the support shaft projection 56.

In this state, the upper case 53 is connected to the lower case 5
The notch 58a is formed by the guide pin 6
0, the guide pin 60 cannot enter the lower end of the guide groove 58. Therefore, even if the operation lever portion 57d is rotated as it is, the mating connector 59 and the lower case 54 cannot be moved. That is,
There is a problem that the mating connector 59 cannot be fitted to the connector portion 55. In the case of the erroneous mounting, the rotation resistance of the lever 57 is small, or the coupling position between the upper case 53 and the lower case 54 is abnormal. Even if it is attempted to re-attach it to a position, there is a problem that the working efficiency is reduced because a special jig is required as described above.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has a lever having a guide groove which is not erroneously fitted into a shaft projection provided on an upper case. It is to provide a partial structure.

[0010]

SUMMARY OF THE INVENTION An object of the present invention is to provide an electric connection box provided with a connector, in which an upper case is provided with a pair of support projections, and the support projection has a lever provided with a guide groove. A guide post provided with a guide pin is rotatably pivoted, and a guide post provided with a guide pin is protruded along a fitting direction. A mating connector fitted with the connector portion is detachably attached to a lower case, and the guide pin is provided. Is engaged with the guide groove, and the lever is rotated. In the lever fixing portion structure of the electric connection box in which the mating connector is fitted into the connector portion, the pair of the shaft protrusions The problem can be solved by a lever fixing portion structure of the electric junction box, which is characterized by having different diameters.

[0011] According to the lever fixing portion structure of the electric junction box having the above configuration, the outer diameters of the pair of support shaft projections are different, so that the lever is rotatable on the support shaft protrusion provided on the upper case. When pivotally mounted on the vehicle, erroneous mounting in the wrong direction can be reliably prevented. Therefore, the mating connector of the lower case and the connector portion of the upper case are securely fitted, so that the reliability of the electric connection box can be improved and the fitting work of the connector can be easily performed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a lever fixing portion structure of an electric junction box according to the present invention will be described in detail below with reference to FIGS. FIG. 1 is a side view showing an embodiment of a lever fixing portion structure of an electric connection box according to the present invention, and FIG.
1 is a front view showing the support shaft projection and the holding side plate, and FIG. 3 is a cross-sectional view of the lever shown in FIG. 1 to 3
As shown in FIG. 5, the lever fixing portion structure 2 of the electric connection box 1 according to the present embodiment includes a pair of shaft projections 6a having a pair of different outer diameters B and C on the upper case 3 of the electric connection box 1 provided with the connector portion 5. , 6b are provided inside the pair of holding side plates 11a, 11b. A lever 7 having an arcuate guide groove 8 provided on the support shaft protrusions 6a and 6b is pivotally connected to the lever.

A mating connector 9 to be fitted into the connector portion 5 is detachably attached to the lower case 4, and a rectangular guide pillar 9a is provided at the center of the mating connector 9.
Are protruded along the fitting direction, and a guide pin 10 to be engaged with the guide groove 8 is protruded from a front end portion of the side wall. Therefore, the guide pin 10 is engaged with the guide groove 8,
By rotating the lever 7, the guide pin 10 is guided along the guide groove 8, and is moved in a direction in which the mating connector 9 is fitted into the connector portion 5.

More specifically, a pair of holding side plates 11a, 11a provided with support shaft projections 6a, 6b on the upper case 3.
It is provided at a predetermined interval so as to face the same axis inside b. Further, the shaft holes 12a, 1a having different inner diameters rotatably pivotally mounted on the shaft protrusions 6a, 6b.
2b are cam side plates 13a, 1 provided on both sides of the lever 7.
3b. Further, the shaft holes 12a, 12b
In the upper cam side plates 13a and 13b, the shaft projection dodging grooves 1 are provided.
4a and 14b are provided.

The guide grooves 8 are provided on the cam side plates 13a, 13a.
b, a notch 8a is provided at the lower end of the guide groove 8 and extends downward. The width of the notch 8a is set to a width that allows the guide pin 10 to pass through. The lever 7 is provided with an operation lever portion 15 for performing a rotation operation.

In the lever fixing portion structure 2 of the electric junction box 1 having the above-described structure, first, while moving the lever 7 from right to left in FIG. , 14b through the support shaft projections 6a, 6b. Then, the support protrusions 6a and 6b are
a, 12b. However, this operation needs to be performed while expanding the pair of holding side plates 11a and 11b on the upper case 3 with a special jig.

Next, after the lever 7 is turned to the right in FIG. 1 and the operation lever 15 is leveled, the upper case 3
The guide pin 10 enters the lower end portion of the guide groove 8 through the notch 8a when slightly pressed on the lower case 4. When the operation lever 15 is rotated to the left in the drawing, the guide pin 10 is pulled up in the guide groove 8, and the mating connector 9 is fitted to the connector 5.

As described above, according to the lever fixing portion structure of the electric connection box of the present embodiment, the pair of support shaft projections 6a, 6
Since the outer diameters B and C of the b are set to different dimensions and diameters, the shaft projections 6a and 6b provided on the upper case 3 are provided.
When the lever 7 is rotatably pivoted, the erroneous mounting in the wrong direction can be reliably prevented.

Then, as the operation lever portion 15 is rotated, the guide pin 10 guided by the guide groove 8 moves so as to gradually approach the support shaft projections 6a and 6b. That is,
The mating connector 9 can be easily fitted to the connector portion 5 with a small rotation force of the operation lever portion 15. Therefore,
Since the erroneous mounting can be reliably prevented and the mating connector 9 and the connector portion 5 are securely fitted, the reliability of the electric connection box is improved, and the working efficiency of the connector fitting is improved. Can be.

If the operation lever 15 in the vertical state is turned to the right in the opposite direction, the mating connector 9 can be easily detached from the connector 5. When the mating connector 9 and the connector section 5 are multi-pole connectors, a large force is required at the time of fitting and disengaging, which is particularly effective.

It should be noted that the present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes. For example, in the present embodiment, the guide pin 10 is provided on a part of the mating connector 9, but since the mating connector 9 is attached to the lower case 4, the guide pin 10 is formed on a part of the lower case 4. The provided structure may be used.

[0022]

As described above, according to the lever fixing portion structure of the electric connection box of the present invention, the outer diameters of the pair of support shaft projections are different from each other. When the lever is pivotally attached to the lever, erroneous mounting in the wrong direction can be reliably prevented. Therefore, erroneous mounting of the lever can be reliably prevented, and the fitting operation between the mating connector and the connector portion can be easily performed, so that the reliability of the electric connection box can be improved and the connector fitting can be improved. Work efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a side view showing one embodiment of a lever fixing portion structure of an electric connection box of the present invention.

FIG. 2 is a front view of a spindle protrusion and a holding side plate in FIG.

FIG. 3 is a sectional view taken along line AA of the lever in FIG. 1;

FIG. 4 is an exploded perspective view showing a lever fixing portion structure of a conventional electric connection box.

FIG. 5 is an explanatory view showing a normal lever mounted state in FIG. 4;

FIG. 6 is an explanatory view showing an erroneously mounted state of the lever in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric connection box 2 Lever fixing part structure 3 Upper case 4 Lower case 5 Connector part 6a, 6b Supporting projection 7 Lever 8 Guide groove 9 Mating connector 10 Guide pin 12a, 12b Supporting hole 14a, 14b Supporting projection dovetail groove 15 Operation lever

Claims (1)

[Claims] 1. A pair of pivot projections are provided on an upper case of an electric connection box having a connector portion, and a lever having a guide groove is rotatably pivotally mounted on the pivot projection, and a guide pin is provided. Guide pillars with are protruded along the fitting direction,
A mating connector that fits with the connector portion is detachably attached to the lower case, the guide pin is engaged with the guide groove, and the lever is rotated, whereby the mating connector is attached to the connector portion. The lever fixing portion structure of the electric connection box, wherein the outer diameters of the pair of support shaft projections are different from each other.