JPH11339884A - Connector with bolt - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily couple housings with each other. SOLUTION: This connector consists of a female housing 4 equipped with a bolt 7 and a male housing which is equipped with a nut to be threadedly engaged with the bolt 7 and is engaged with the female housing 4, and it is structured that the relative position and the width of the external thread part 7g to the nut are so determined that the external thread part 7g of the bolt 7 goes beyond the internal thread part of the nut and runs idle, when a final coupled position of the housing 4 and the male housing is obtained by fastening the bolt 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bolted connector for obtaining a final connection position between housings by screwing a bolt and a nut together.

[0002]

2. Description of the Related Art Conventionally, this type of bolted connector has
It is often used to connect a large number of electrical circuits simultaneously, with one housing having bolts and the other housing having nuts. Since such a housing is often made of a synthetic resin, the strength of the housing is lower than that of a bolt or a nut. Therefore, when the housings are fitted to each other and the bolts are excessively tightened, the housing may be easily damaged. For this reason, the conventional bolted connector is designed such that the bolt is tightened with a torque wrench at a predetermined torque value, or when the bolt is tightened with a torque value equal to or more than a predetermined value, the bolt is broken.
Prevents housing damage.

[0003]

However, in the conventional example in which the bolts are tightened to a predetermined torque value using a torque wrench, it is necessary to prepare a torque wrench or tighten the bolts to a predetermined torque value. ,
There is a problem that workability is poor. In addition, in the conventional example in which a bolt is broken when tightened with a torque value equal to or more than a predetermined value, the broken bolt is removed from a housing or a nut or a new bolt is required, resulting in poor workability and cost. However, there is a problem that the bulk increases.

[0004] It is an object of the present invention to solve the above-mentioned problems and to provide a connector with bolts that can easily connect the housings.

[0005]

According to a first aspect of the present invention, there is provided a bolted connector including a first housing having a bolt, and a first nut having a nut screwed to the bolt. A second housing fitted with the housing, wherein a final connection position between the housings is obtained in a bolted connector in which a final connection position between the housings is obtained by screwing the bolt and the nut. In this case, the male screw part of the bolt is made to idle past the female screw part of the nut.

A connector with a bolt according to a second invention is
A first housing provided with a bolt, and a second housing provided with a nut screwed to the bolt and fitted with the first housing.
A connector with a bolt, the final connection position of the housings being obtained by screwing the bolt and the nut together.
Attached to the housing so as to be able to move back and forth, and urged in the pulling-out direction by urging means to obtain a final coupling position between the housings, so that the male screw portion of the bolt exceeds the female screw portion of the nut. It is characterized by idling.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the illustrated embodiment.

FIG. 1 is a sectional view of one connector 1 and FIG. 2 is a sectional view of the other connector 2 and a front holder 3.
The front holder 3 is assembled to the other connector 2. A female housing 4 of one connector 1 has a large number of male connection terminals 6 with electric wires 5 connected to the rear.
And a bolt 7 is rotatably provided. Also, the male housing 8 of the other connector 2
Has a large number of female connection terminals 10 with electric wires 9 connected to the rear part.
And a nut 11 which can be screwed with the bolt 7 is provided.

In the female housing 4, the housing body 21 has a large number of terminal receiving holes 22 for receiving the male connection terminals 6, and a flexible arm 23 which faces the terminal receiving holes 22 and locks the male connection terminals 6. Are provided. A front protruding portion 24 and a rear protruding portion 25 are provided substantially on the axis of the housing main body 21.
6 are formed at intervals. A fitting hole 27 for fitting the male housing 8 is formed inside the hood portion 26, and a fitting hole 28 for fitting a fitting portion described later of the male housing 8 is formed inside the front projection 24. Have been.

A bolt insertion hole 29 for inserting the bolt 7 is provided substantially on the axis of the housing body 21 and the rear projecting portion 24. Behind the bolt insertion hole 29, a spring accommodation hole 31 for accommodating the compression coil spring 30 is formed concentrically with the bolt insertion hole 29. The bolt 7 is inserted into the bolt insertion hole 29 from the rear protruding portion 25 side, and a washer 32 is fixed to the bolt 7 in the fitting hole 28. This prevents the bolt 7 from coming out of the female housing 4 and is urged rearward by the compression coil spring 30 disposed in the spring receiving hole 31.

The bolt 7 has a head portion 7a having a diameter larger than the diameter of the spring receiving hole 31, a large-diameter shaft portion 7b having a diameter fitted into the bolt insertion hole 29, and a smaller diameter than the large-diameter shaft portion 7b. And a small diameter portion 7c to which the washer 32 is attached.
c, a larger diameter portion 7d that fits into a bolt receiving hole of the male housing 8 described later, a tapered portion 7e whose diameter gradually decreases as the distance from the larger diameter portion 7d increases, and a larger diameter shaft portion 7b. Small diameter small diameter shaft portion 7f and female screw portion 11 of nut 11
A male thread 7g screwed into the nut 11a and a pilot 7h for guiding the bolt 7 into the female thread 11a of the nut 11 are sequentially provided.

On the other hand, in the male housing 8, the housing main body 41 is sized to fit into the fitting hole 27 of the female housing 4, and the housing main body 41 has a connection terminal 1.
0 is provided, and a flexible lance 43 is provided to lock the connection terminal 10 facing the terminal receiving hole 42. The front holder 3 is attached to the male housing 8 to restrict the movement of the flexible lance 43, and a detailed description is omitted.

The male housing 8 includes a female housing 4.
A fitting groove 44 for fitting the front protruding portion 24 of the female housing 4 is formed, and the inside of the fitting groove 44 is a fitting portion 45 for fitting into the fitting hole 28 of the female housing 4. Inside the fitting portion 45, a bolt housing hole 46 having a diameter to fit the large diameter portion 7d of the bolt 7 is formed so as to penetrate the front and rear. A tapered portion 46a is formed at the front of the bolt receiving hole 46,
The nut 11 is insert-molded on the peripheral wall of the bolt receiving hole 46.

Here, the position and width of the male screw 7g of the bolt 7 with respect to the nut 11 are determined as follows. That is, the female housing 4 and the male housing 8 are fitted together, the bolts 7 and the nuts 11 are screwed together, and the bolts 7 are tightened so that the final connection positions of the housings 4 and 8, that is, the connection terminals 6 and 10 are connected. Housing 4, which has fully connected
When the positions of the female threads 8 are obtained, the male thread 7g
It is configured to idle past a.

FIG. 3 is a cross-sectional view showing a state in which the connection terminals 6 and 10 are removed. When the housings 4 and 8 are fitted together, the housing body 41 and the fitting portion 45 of the male housing 8 are connected to the female housing 4. , Respectively, to approximately the middle before and after the fitting holes 27 and 28. At the same time, the front projecting portion 24 of the female housing 4 enters the fitting groove 44 of the male housing 8, and the pilot portion 7 h of the bolt 7 enters the female screw portion 11 a of the nut 11.

When the bolt 7 is rotated in this state, the male screw portion 7g starts screwing into the female screw portion 11a, the bolt 7 pulls the nut 11, and pulls the male housing 8 toward the female housing 4. Then, as shown in FIG. 4, when the final connection position between the housings 4 and 8 is obtained, the male screw portion 7g idles beyond the female screw portion 11a. At this time,
Since the load on the bolt 7 is suddenly reduced, it can be easily recognized that the connection of the housings 4 and 8 is completed.

On the other hand, when the housings 4 and 8 are separated from each other, the bolt 7 may be rotated in the opposite direction. At this time, the bolt 7 is urged rearward by the compression coil spring 30, and the male thread 7g is pressed against the female thread 11a.
g is screwed into the female screw portion 11a, the bolt 7 acts to push out the nut 11, and the housings 4 and 8 are separated from each other.

Although the compression coil spring 30 for urging the bolt 7 rearward is provided, any means can be provided as long as the means can urge the bolt 7.

[0019]

As described above, in the connector with a bolt according to the present invention, when the final connection position between the housings is obtained, the male screw portion of the bolt slips over the female screw portion of the nut. Therefore, unlike the conventional case, a torque wrench is not required, and the bolt is not broken, so that the housings can be easily connected to each other.

Further, if the bolt is attached to the first housing so as to be able to move back and forth and is urged in the pulling-out direction by the urging means, the bolt and the nut can be screwed together only by rotating the bolt in the opposite direction. In addition, the work of separating the housings from each other becomes easy.

[Brief description of the drawings]

FIG. 1 is a sectional view of one connector.

FIG. 2 is a cross-sectional view of the other connector and a front holder.

FIG. 3 is an operation explanatory view in a state where housings are fitted to each other.

FIG. 4 is an operation explanatory view in a state where a final connection position between housings is obtained.

[Explanation of symbols]

 4 Female Housing 7 Bolt 7g Male Thread 8 Male Housing 11 Nut 11a Female Thread 30 Compression Coil Spring

Claims (2)

[Claims] A first housing provided with a bolt; and a second housing provided with a nut to be screwed to the bolt and fitted with the first housing. A final connection position between the housings. In the connector with bolts obtained by screwing the bolt and the nut, when the final connection position between the housings is obtained, the male screw portion of the bolt runs over the female screw portion of the nut. A connector with a bolt, characterized in that: 2. A first housing provided with a bolt, and a second housing provided with a nut screwed to the bolt and fitted with the first housing, wherein a final connection position between the housings is provided. In the bolted connector obtained by screwing the bolt and the nut, the bolt is attached to the first housing so as to be able to move back and forth, and is urged in a removing direction by an urging means, so that the final connection between the housings is completed. A connector with a bolt, wherein when a connection position is obtained, a male screw portion of the bolt runs over a female screw portion of the nut.