JPH09106849A - Bolted connector - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To prevent the electric wire from being caught, and to prevent the slide cover from being half-mounted. SOLUTION: A slide cover 20 having a U-shaped cross section is slidably mounted on the rear side of a housing 10 while pulling out a lead wire 30, but at this time, if it is not moved to a proper position, a stopper window 26 of the slide cover 20 is provided. Does not coincide with the stopper insertion hole 13 and the bolt stopper 50 for retaining and holding the bolt 60 cannot be inserted, so that the slide cover 20 can be prevented from being half-mounted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bolted connector.

[0002]

2. Description of the Related Art Conventionally, in this type of bolted connector, as shown in FIG. 10, a bolt column 1a through which a bolt 2 penetrates is projected from a central portion of a rear surface of a housing 1 and a hood-shaped wall member is formed around the rear surface. After covering with 1b and accommodating the terminal metal fitting 4 to which the electric wire 3 is crimped and connected in the terminal metal fitting accommodating chamber 1c formed in the housing 1, the electric wires 3 that have been led out are grouped together and placed on the open end of the hood-shaped wall material 1b. The lid 5 is attached.

A stopper insertion hole 1d is formed on the side surface of the housing 1 so as to be orthogonal to the bolt insertion hole 1b1 formed in the bolt support column 1a.
A bolt stopper 6 that is bifurcated from d and engages with a small diameter portion 2a formed in the middle of the bolt 2 can be inserted.

[0004]

In the above-mentioned conventional bolted connector, the electric wire 3 is apt to be caught between the wall post 1a and the bolt post 1a when the lid 5 is attached to the open end of the wall plate 1b, and the workability is improved. There was a problem that was bad.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a bolted connector capable of improving workability by preventing electric wires from being caught.

In order to achieve the above object, the invention according to claim 1 is formed in a substantially rectangular box shape in which a plurality of terminal fitting accommodating chambers are formed, and an electric wire is led out in the terminal fitting accommodating chamber. A housing having a surface formed with a bolt insertion hole through which a bolt can be inserted and a side surface formed with a stopper insertion hole orthogonal to the bolt insertion hole, and the wire lead-out surface with respect to the bolt insertion hole in the housing. , Which is inserted from the side for tightening and fixing with the mating connector, and is formed in a U-shaped cross section having at least a ceiling surface and both side wall surfaces so as to cover the rear surface of the housing. It has a bolt insertion window facing the bolt insertion hole, and corresponds to the opening portion of the stopper insertion hole while engaging with the rear end portion of the side surface of the housing at the opening ends of both side walls. A slide cover that is held slidably in a direction orthogonal to the axial direction of the terminal metal housing chamber while the stopper window is aligned with the stopper insertion hole at the regular position, and the slide cover is at the regular position. A bolt stopper that is inserted into a stopper insertion hole of the housing through the stopper window at a certain time and rotatably engages with the bolt to prevent the bolt from coming off.

[0006] The invention according to claim 2 is based on claim 1.
In the bolt tightening connector according to the item [4], the stopper window is formed in a notch shape at a side wall end portion of the slide cover.

[0007]

In the invention according to claim 1 configured as described above, when the terminal fitting having the electric wire connected to one end is inserted into the terminal fitting housing chamber of the housing, a large number of electric wires are generated from the electric wire lead-out surface side of the housing. Derived.
Next, the slide cover having a U-shaped cross section is mounted while sliding it on the rear surface of the housing. That is, while making the inner surface side of the ceiling surface parallel to the rear surface of the housing, the other lower end is brought close to one upper end so that the open ends of both side walls of the slide cover are formed in a substantially rectangular box shape. Engage with the rear end of the side surface and slide in parallel. Therefore, the slide cover slides with respect to the housing in a direction orthogonal to the axial direction of the terminal fitting accommodating chamber, and the drawn wire is bent by the U-shaped slide cover in a direction opposite to the sliding direction. They are bundled together. On the other hand, a bolt insertion hole is formed in the rear surface of the housing, and while inserting the bolt from the rear surface side into the bolt insertion hole and inserting the bolt stopper in the stopper insertion hole formed in the side surface of the housing, the bolt stopper Rotatably engages the bolt to prevent it from coming off. However, when the slide cover slides with respect to the housing, the stopper window formed on the side wall thereof overlaps the stopper insertion hole, and unless the slide cover is in the proper position, the side wall covers the stopper insertion hole and the bolt stopper cannot be inserted. Then, when in the normal position, the stopper window faces the stopper insertion hole, and the bolt stopper can be inserted.

Further, in the invention according to claim 2 configured as described above, the stopper window is formed by notching the opening end of the slide cover, and the slide cover is formed at the opening ends of both side walls of the housing. The stopper window also slides when it engages with the rear end portion of the side surface and slides, and faces the stopper insertion hole at a predetermined position.

[0009]

As described above, according to the present invention, since the U-shaped slide cover is slid while facing the rear surface of the housing, when the lead-out electric wires are put together, the lead-out electric wires are not caught, and the slide-out wire is also slid. Since the bolt stopper cannot be inserted unless the cover is in the proper position, it is possible to provide a bolt tightening connector that can prevent the slide cover from being attached at an inappropriate position.

Further, according to the second aspect of the invention, since the end portion of the side wall is cut out to form the stopper window,
Easy to form.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing a bolted connector according to an embodiment of the present invention, which is composed of a rectangular box-shaped housing 10 and a slide cover 20 slidably mounted on the back surface of the housing 10. ing.

In the figure, a housing 10 in the shape of a substantially rectangular box which is long in the vertical direction has left and right side walls formed substantially parallel to each other, and bolt posts 11 are provided upright from the middle of the rear surface toward the rear surface. A bolt insertion hole 11a is formed in the bolt column 11 to penetrate the housing 10 in the front-rear direction. A terminal fitting housing chamber 12 penetrating in the front-rear direction is formed in an upper portion and a lower portion of the housing 10 with the bolt support 11 interposed therebetween, and a terminal fitting 40 to which a wire 30 is crimped is inserted from an opening on the rear side. And can be housed inside.

In this embodiment, a vertically long shape is adopted as the housing, but it is not particularly limited to such a shape, and parallel edges for mounting the slide cover 20 are provided on the rear surface side. If you have
The ratio may be different so that it is close to a square, or the front side may be irregular if the back side has parallel edges. The bolt strut is erected at the center in the vertical and horizontal directions, but it is sufficient if it has a bolt insertion hole, it does not necessarily have to be erected, and it need not be at the center. It may be offset in the direction.

A stopper insertion hole 13 is formed on the side surface of the housing 10 so as to be orthogonal to the bolt insertion hole 11a. The stopper insertion hole 13 is formed in a slit shape, and when the plate-shaped bolt stopper 50 is inserted, the forked portion 51 at the tip of the bolt stopper 50 has a bolt insertion hole 11.
It is adapted to be orthogonal to the axis of a. The stopper insertion hole 13 is formed at a position relatively close to the rear surface side with respect to the thickness of the housing 10.

In this embodiment, the stopper insertion hole 1
Although 3 is formed in a flat hole shape, it is sufficient that the bolt stopper 50 can be inserted from the outer surface of the housing 10, and it can be appropriately modified according to the shape of the bolt stopper 50. Further, in the present embodiment, it is formed on the relatively rear surface side, but it is not particularly limited to that position. However, when closing the stopper insertion hole 13 with the slide cover 20 which will be described later, the closer the rear surface side is, the more reasonably the slide cover 20 can close the stopper.

The slide cover 20 is formed on the back side of the housing 10 so as to cover the back side, the side direction, and the bottom side, and has a generally U-shaped cross section in the horizontal direction. The wall surface covering the back direction is called the ceiling surface 21, and the substantially parallel wall surfaces covering the side direction are the side wall surfaces 22 and 2.
2, and the wall surface covering the lower surface direction is called the bottom surface 23. As shown in an enlarged view in FIG. 2, concave-convex structures 24 and 14 that slidably engage with each other are formed at the tips of the side wall surfaces 22 and 22 and the rear edge portion of the side wall surface of the housing 10. When the front lower ends of the side wall surfaces 22, 22 of the slide cover 20 are fitted to the rear lower ends of both side surfaces of the slide cover 10, the slide cover 20 can be slid upward with respect to the housing 10. The stopper insertion hole 13 is formed so as to cross the middle of the uneven structures 24 and 14.

The slide cover 20 is slidable until the bottom surface 23 thereof is flush with the bottom surface of the housing 10, and a bolt insertion hole 25 is provided at a portion facing the bolt support 11 at this position. In addition, the side wall surfaces 22, 22
Since the tip end of the above-mentioned structure constitutes the concavo-convex structure 14, it necessarily intersects with the stopper insertion hole 13 and is cut out so as not to close the stopper insertion hole 13 at this position to form a stopper window 26.

In the present embodiment, the stopper window 26 is formed by notching the tip of the side wall surface 22. The stopper window 26 opens the stopper insertion hole 13 when the slide cover 20 is in the normal position. As long as the stopper insertion hole 13 is closed, the stopper insertion hole 13 can be closed at any other position. Therefore, as shown in FIG. 3, it may be a hole shape whose peripheral edge is closed, or as shown in FIG. It is possible. In addition, the stopper insertion hole 13
Is located on the front side of the concave-convex structure 24, it is necessary to extend it to the stopper insertion hole 13 as shown in FIG.

The bolt 6 inserted through the bolt insertion hole 25 with the slide cover 20 slid to the normal position.
0 has a male screw 61 formed on the outer peripheral surface of the tip portion,
When inserted through the bolt insertion hole 11a of the bolt column 11, the male screw 61 at the tip penetrates the housing 10 and projects from the front surface. On the other hand, a small diameter portion 62 is formed in the middle of the bolt 60 and at a portion intersecting with the stopper insertion hole 13, and the forked portion 51 of the bolt stopper 50 engages with the small diameter portion 62. The bolt 60 is rotatable and can be held so as not to come off.

In the present embodiment, the bolt stopper 5
The tip of 0 is bifurcated to engage with the small diameter portion of the bolt 60, but it is not necessarily required to have such a shape, and the bolt 60 may be rotatable so as not to come off. Therefore, as shown in FIG. 6, two flanges may be formed in the middle of the bolt 60 and the forked portions 51 of the bolt stopper 50 may be engaged between them.
Similarly, a small diameter portion 62 may be formed on the bolt 60 and the edge portion of the bolt stopper 50 may be inserted to engage with the bolt stopper 50, as shown in FIG.

The slide cover 20 is the housing 1
0 is not designed to cover the upper side and the upper side portion in the lateral direction, but instead, the housing 10 has a housing-side hood portion 15 that projects from the upper portion to the rear side in an eaves-like shape and can be integrated with the slide cover 20. Is equipped with. Further, in the slide cover 20, a recess 21a is formed in the ceiling surface 21 so that a through hole for pulling out the lead-out electric wire 30 is formed in a connecting portion between the slide cover 20 and the housing side hood portion 15. is there. Further, the side wall surfaces 22 and 22 of the slide cover 20 and the housing side hood portion 1
A concave-convex locking mechanism that engages with each other to prevent coming off is formed at the contact portion with 5.

Next, the operation of this embodiment having the above configuration will be described. The terminal fitting 40 having the electric wire 30 connected therein is housed in the terminal fitting housing chamber 12 of the housing 10, and the slide cover 2 is provided at the rear lower end on both side surfaces of the housing 10.
The front ends of the side wall surfaces 22, 22 of 0 are fitted to each other, and the slide cover 20 is slid upward with respect to the housing 10. Since the upper portion of the slide cover 20 is provided with side wall surfaces 22 and 22 in the side direction and the ceiling surface 21 is provided in the rear direction, the ceiling surface 21 is provided with the recessed portion 21a. The electric wires 30 led out from the terminal fitting housing chamber 12 on the lower side of the column 11 are gathered together in the recess 21a. Then, as the slide cover 20 rises, it is gradually bent by the edge portion of the ceiling surface 21 and enters the slide cover 20.

When the slide cover 20 is completely lifted, the upper ends of the side walls 22 and 22 are brought into contact with the lower ends of the housing side hood portions 15 and locked, and the rear end side of the housing 10 is covered over the entire circumference and the slide covers are provided on the back side. A recess 21a of 20 and the housing-side hood 15 are combined to form one through hole, and the lead wire 30 is drawn out through the through hole. Further, since the bolt insertion hole 25 formed in the ceiling surface 21 faces the bolt support 11, the bolt 60 is inserted.

When the slide cover 20 is raised to this position, the stopper window 26 coincides with the stopper insertion hole 13 as shown in FIG. 8, so that the bolt stopper 50 is inserted. Then, the forked portion 51 at the tip end engages with the small diameter portion 62 of the bolt 60, and the bolt 60 cannot be pulled out. However, if the slide cover 20 is not pushed up to the end as shown in FIG.
3, the stopper insertion hole 13 is partially or entirely closed. Then, since it becomes impossible to insert the bolt stopper 50, it can be seen that the slide cover 20 is not in the proper position. When the bolt stopper 50 cannot be inserted, the operator may confirm the mounting state of the slide cover 20 and move it to the regular position.

As described above, the slide cover 20 having a U-shaped cross section is slid on the rear side of the housing 10 while pulling the lead-out electric wire 30, but at this time, if the slide cover 20 is not moved to the proper position, the slide cover 20 is removed. The stopper window 26 does not match the stopper insertion hole 13 and the bolt 60
Since the bolt stopper 50 for preventing and retaining the slide cover cannot be inserted, the half-attached state of the slide cover 20 can be prevented.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a bolt tightening connector according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of a concavo-convex structure of a bolt tightening connector.

FIG. 3 is a partial side view showing a modified example of a stopper window.

FIG. 4 is a partial side view showing a modified example of a stopper window.

FIG. 5 is a partial side view showing a modified example of a stopper window.

FIG. 6 is a partial perspective view showing a modified example of a bolt and a bolt stopper.

FIG. 7 is a cross-sectional view showing a modified example of a bolt and a bolt stopper.

FIG. 8 is a side view showing a proper assembled state of the slide cover of the bolt tightening connector.

FIG. 9 is a side view showing a half-mounted state of the slide cover of the bolt tightening connector.

FIG. 10 is an exploded perspective view of a conventional bolted connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Housing 11a ... Bolt insertion hole 12 ... Terminal fitting accommodating chamber 13 ... Stopper insertion hole 20 ... Slide cover 21 ... Ceiling surface 22 ... Side wall surface 26 ... Stopper window 50 ... Bolt stopper 60 ... Bolt 62 ... Small diameter part

Claims (2)

[Claims] 1. A substantially rectangular box-like shape having a plurality of terminal fitting accommodating chambers formed therein, and a bolt insertion hole through which a bolt can be inserted is formed in a wire lead-out surface of the terminal fitting accommodating chamber and a side surface is formed. Is a housing in which a stopper insertion hole that is orthogonal to the bolt insertion hole is formed; It is formed in a U-shaped cross-section having at least a ceiling surface and both side wall surfaces so as to cover the rear surface, the ceiling surface is provided with a bolt insertion window facing the bolt insertion hole of the bolt strut, and the opening ends of both side walls are formed. And a stopper window corresponding to the opening portion of the stopper insertion hole while engaging with the rear end portion of the side surface of the housing, A slide cover that is slidably held and has the stopper window aligned with the stopper insertion hole at the regular position; and a slide cover that is inserted into the stopper insertion hole of the housing through the stopper window when the slide cover is at the regular position. A bolt tightening connector comprising: a bolt stopper that rotatably engages with the bolt to prevent the bolt from coming off. 2. The bolt tightening connector according to claim 1, wherein the stopper window is formed in a notch shape at a side wall end portion of the slide cover.