JPH05290924A - Screw type connector cover - Google Patents

Abstract

PURPOSE:To provide the screw type connector cover, with which the work in a narrow part is facilitated without biting an electrical wire drawn from the rear end part of a connector between a bolt and a screwing working tool. CONSTITUTION:The inner wall 39a of a cover 39 is provided with a rib 59 as an electrical wire drawing direction control unit for controlling the drawing direction of plural electrical wires 63, which are drawn from the rear end part of a terminal housing chamber. The rear surface side of the cover 39 is provided with a tool insertion port 53, to which a tool 67 to be fitted to a head part 47a of a bolt 47 is inserted. Furthermore, a bolt projection port 61 for housing the head part 47a of the bolt 47 inside thereof is provided in the rib 59 so as to be communicated with the tool insertion port 53.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in a screw tightening type connector in which a plurality of electric wires are respectively drawn out from a rear end portion of a terminal accommodating chamber and are fitted with a mating connector by bolts and nuts, and the terminal accommodating The present invention relates to a cover for covering an electric wire drawn out from a rear end portion of a chamber.

[0002]

2. Description of the Related Art FIGS.
A screw tightening type connector 1 described in Japanese Patent No. 0183 is shown. In the figure, this screw tightening type connector 1 includes a female type connector part 5 integrally formed with a relay box 3 and a male type connector fixed in advance to a dash panel 7 of a vehicle through a projecting part 9 having elasticity. 11 or so.

The female connector portion 5 has a fitting hood portion 15 into which the connector housing 13 of the male connector 11 is fitted.
A plurality of male terminal portions 19 formed at the tip of the bus bar 17 are provided therein. Also, the female connector portion 5
A bolt 21 having a head portion 21a located on the relay box 3 side is inserted in the central portion of the, and a screw portion 21b is provided to project into the fitting hood portion 15. Further, on the opposite side of the female connector section 5, that is, on the rear end side of the female connector section 5, a relay mounting section 23 to which a relay is mounted is formed, and the relay mounting section 23 has a detachable lid. It is closed by the body 25.

On the other hand, the male connector 11 has a plurality of terminal accommodating chambers 27 formed in the connector housing 13.
Female terminal fittings (not shown) are housed in these terminal housing chambers 27. These female terminal fittings are caulked and connected to the ends of electric wires (not shown). In addition, this electric wire is connected to an electric device in the vehicle compartment.

A through hole 29 is formed in the central portion of the connector housing 13, and a nut 31 is press-fitted into the through hole 29. Further, a projecting portion 9 having elasticity is formed on the outer periphery of the connector housing 13, and an opening of the mounting hole 7a of the dash panel 7 is formed in a locking groove portion 33 formed at the tip of the projecting portion 9. The male connector 11 is fixed to the dash panel 7 by fitting the edges.

The fitting procedure of the screw tightening type connector 1 will be described below. The male connector 11 is fixed to the dash panel 7 from the vehicle interior side in advance. The relay box 3 is placed on the male connector 11 from the engine room side, the end of the male connector 11 is inserted into the fitting hood portion 15 of the female connector portion 5, and the bolt 2
The nut 31 is screwed into the screw portion 21b of No. 1.

Then, a tool (not shown) is engaged with the head 21a of the bolt 21 to rotate the bolt 21 and screw it into the nut 31. By screwing the bolt 21 into the nut 31, the male connector 11 is fitted in the fitting hood portion 15 of the female connector portion 5, and the female terminal metal fitting in the terminal accommodating chamber 27 of the connector housing 13 is formed. Then, the male terminal portion 19 of the female connector 5 is fitted and electrically connected.

After the male connector 11 is completely fitted in the fitting hood portion 15 of the female connector portion 5, the relay mounting portion 23 of the relay box 3 is mounted with a relay, a connector and the like, as shown in FIG. As shown in, the upper part is closed by the lid 25. As a result, backward expansion of the electric wire pulled out from the rear end of the connector mounted on the relay mounting portion 23 is prevented.

[0009]

However, in the conventional screw tightening type connector 1 described above, when the tool is engaged with the head 21a of the bolt 21, a relay is provided between the tool and the head 21a of the bolt 21. The electric wire pulled out from the rear end portion of the connector or the like mounted on the mounting portion 23 may be caught, which hinders the screwing work of the bolt 21 and makes it difficult to work in a narrow portion.

Further, if the bolt 21 is screwed while the electric wire is caught between the tool and the bolt 21, the wire may be broken.

In consideration of the above circumstances, the present invention does not allow the electric wire pulled out from the rear end of the connector to be caught between the bolt and the tool for screwing work, and enables work in a narrow portion. It is an object of the present invention to provide a cover for a screw tightening type connector which is easy.

[0012]

In order to achieve the above object, according to the invention as set forth in claim 1, an electric wire for restricting a drawing direction of a plurality of electric wires drawn from a rear end portion of the terminal accommodating chamber to an inner wall of the cover. A pull-out direction restricting portion is provided, and a tool insertion opening through which a tool engaging with the bolt head is inserted is provided on the rear surface side of the cover. Is provided so as to communicate with the tool insertion opening.

According to a second aspect of the invention, in the screw tightening type connector cover according to the first aspect, an opening / closing door body for opening / closing the tool insertion opening is provided at an opening edge portion of the tool insertion opening via an elastic hinge portion. It is characterized by having supported.

[0014]

According to the first aspect of the present invention, the plurality of electric wires pulled out from the rear end portion of the terminal accommodating chamber are regulated in the pulling-out direction by the electric wire pulling-out direction regulating portion. And
The tool is inserted from the tool insertion opening, and the head of the bolt protruding from the bolt protruding opening is engaged to rotate the bolt. By rotating this bolt, it is screwed into the nut embedded in the mating connector and tightened.

According to the second aspect of the present invention, after the tip of the tool is brought into contact with the opening / closing door, the opening / closing door is resisted against the elastic force of the elastic hinge portion and the tool is inserted from the tool insertion opening into the cover. insert. Then, the tool is engaged with the bolt head to rotate the bolt.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a screw-fastening type connector cover according to the present invention will be described below with reference to the drawings.

1 and 2 show a screw tightening type connector 35.
The female connector 37 and the cover 39 for closing the rear end portion of the female connector 37 are shown. In the figure, a female connector 37 includes a connector housing 41 in which a plurality of terminal accommodating chambers for accommodating terminal fittings (not shown) are formed, and a mating connector (FIG. 2A) formed integrally with the connector housing 41. (See reference) 43 is fitted with a fitting hood portion 45, and a screw portion 47b is projected into the fitting hood portion 45, and a head 47a is provided with a bolt 47 located on the rear end side. A locking protrusion 49 is provided on the outer periphery of the rear end of the connector housing 41. This locking special 49
Is locked in a locking hole 51a formed by a locking frame 51 of the cover 39.

The cover 39 is in the shape of a box with one side opened, and the locking frame 51 forming the locking hole 51a is formed at the edge of the opening. A rectangular tool insertion opening 53 is formed on the upper surface of the cover 39. The tool insertion opening 53 is inserted through the elastic hinge portion 55.
It is closed by a double door 57 that is a double door that is integrally formed at the opening edge of the. The elastic hinge portion 55 normally biases the opening / closing door 57 in the direction of closing the tool insertion opening 53.

Further, from the inner wall of the cover 39, a rib 59 around the tool insertion opening 53 is a wire drawing direction regulating means.
Is projected. The rib 59 is formed on the side walls 59a, 59.
b, 59c, 59d (however, the side wall 59a is not shown), and the side walls 59a, 59b, 59c, 59.
A bolt protrusion 61 is formed at the lower end of d. The head 47 a of the bolt 47 is inserted into the bolt protrusion 61. In addition, the lower end is the connector housing 4
The pull-out direction of the electric wire 63 pulled out from the rear end portion of the wire 1 is regulated.

The side wall of the cover 39 is formed with an electric wire outlet 39b through which the electric wire 63 drawn from the rear end of the connector housing 41 is drawn out.

Next, the procedure for fitting the female connector 37 and the mating connector (male connector) 43 in the screw tightening type connector 35 will be described. In the cover 39, the locking projection 49 of the connector housing 41 is locked in the locking hole 51a in advance to close the rear end portion of the connector housing 41. In this state, the side walls 59a, 5
The lower ends of 9b, 59c and 59d are in contact with the electric wire 63 drawn from the rear end of the connector housing 41 to regulate the drawing direction, and the bolt head is housed inside the side wall. Therefore, the electric wire 63 is the head 47a of the bolt 47.
It is never located near.

From this state, the male connector 43 is inserted into the fitting hood portion 45, and the screw portion 4 of the bolt 47 is inserted.
7b is screwed onto the nut 65. Then, as shown in FIG. 2B, after the tip end portion of the tool 67 is brought into contact with the opening / closing door 57, the cover 39 is resisted against the elastic force of the elastic hinge portion 55.
When inserted inside, the elastic hinge portion 55 bends and the tool 67 is inserted into the inside of the cover 39 through the tool insertion opening 53.

Further, the tool 67 is inserted into the cover 39 and engaged with the head 47a of the bolt 47. After engaging the tool 67 with the head 47 a of the bolt 47, the tool 67 is rotated to screw the bolt 47 into the nut 65. As a result, the male connector 43 becomes the female connector 37.
Is completely fitted in the fitting hood portion 45 of the. After the male connector 43 is completely fitted in the fitting hood portion 45, the tool 67 is taken out from the tool insertion opening 53. In this case, the elastic force of the elastic hinge portion 55 causes the opening / closing door 57.
Closes the tool insertion opening 53.

According to this embodiment, the electric wire 63 pulled out from the rear end of the connector housing 41 by the cover 39.
Since the pulling-out direction of is restricted by the lower end of the rib 59, it does not interfere with other parts.

As shown in FIG. 3, the tool insertion port 53
May be open without the opening / closing door 57.

[0026]

As described above, in the screw tightening type connector cover according to the present invention, the electric wire drawing-out direction restricting portion for restricting the drawing-out direction of the plurality of electric wires drawn out from the rear end portion of the terminal accommodating chamber is provided on the inner wall. Since it is provided in the connector, the electric wire pulled out from the rear end portion of the connector does not get caught between the bolt and the tool for screwing work, and the work in the narrow portion becomes easy.

[Brief description of drawings]

FIG. 1 is a perspective view showing a female connector and a cover of a screw tightening type connector according to the present invention.

FIG. 2 (a) is a cross-sectional view showing a state before fitting the female connector and the male connector, and FIG. 2 (b) is a male connector fitted in a fitting hood portion of the female connector. It is sectional drawing which shows a state.

FIG. 3 shows another embodiment, and FIG. 3 (a) is a cross-sectional view showing a state before fitting the female connector and the male connector,
(B) is sectional drawing which shows the state which fitted the male connector in the fitting hood part of a female connector.

FIG. 4 shows a conventional screw tightening type connector, (a) is a cross-sectional view showing a state where a female connector part and a male connector are fitted together, and (b) is a rear end part of the female connector part. It is a side view which shows the state which closed with the cover.

[Explanation of symbols]

 35 screw tightening type connector 37 female type connector 39 cover 43 mating connector (male type connector) 47 bolt 47a head part 47b screw part 53 tool insertion port 55 elastic hinge part 57 open / close door 59 rib

Claims (2)

[Claims] 1. An electric wire connected to each of the terminal fittings is pulled out from a rear end portion of the plurality of terminal accommodating chambers, and
A screw tightening type consisting of a connector having a bolt whose head is located on the rear end side of the terminal accommodating chamber, and a mating connector in which an embedded nut is screwed into the bolt and fitted with the connector. In a cover used for a connector to cover a rear end of the terminal accommodating chamber, an electric wire withdrawing direction regulation that regulates a withdrawal direction of a plurality of electric wires withdrawn from the rear end of the terminal accommodating chamber on an inner wall of the cover. And a tool insertion opening through which a tool engaging with the head portion of the bolt is inserted, and a bolt projection opening for accommodating the head portion of the bolt inside is regulated in the wire drawing direction. The screw-fastening type connector cover according to claim 1, wherein the cover is provided in communication with the tool insertion port. 2. The cover for a screw tightening type connector according to claim 1, wherein an opening / closing door body for opening / closing the tool insertion opening is supported at an opening edge portion of the tool insertion opening via an elastic hinge portion.