JP3081746B2 - Protective case for wire terminal connection - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective case for a wire terminal connecting portion.

[0002]

2. Description of the Related Art When electric wires are electrically connected to each other by bundling and joining the ends of a plurality of electric wires, generally, the ends of the electric wires are accommodated in a protective case made of an insulating material. To protect.

Conventionally, as the protective case, there are known an L-shaped fixed type and a strain relief type as disclosed in Japanese Utility Model Application Laid-Open No. 4-24266.

FIGS. 9 and 10 show the former example. In the figure, 1 is an electric wire, 3 is a conductor, and 5 is a terminal connection. The plurality of electric wires 1 are joined together by means of welding, thermocompression bonding, or the like, with the ends of the conductor portions 3 being bundled,
They are electrically connected to each other.

[0005] The protective case 10 has an L-shaped terminal accommodating portion 20 therein, and has a box-shaped case body 12 having an open top surface and one side surface, and is rotatable around one side edge of the case body 12. And a lid 14 for closing the upper surface of the case body 12. A lock portion 18 is provided on a side edge of the lid 14 to lock the engagement portion 16 of the case body 12 in the closed state when the lid 14 is closed.

When the terminal connecting portion 5 is accommodated in the protective case 10, the rigid terminal connecting portion 5 is connected to the terminal accommodating portion 20.
It is bent along and accommodated. Then, the bent terminal connection part 5 becomes a resistance, and the protective case 10 is held at the terminal of the electric wire 31 against the tensile force.

FIGS. 11 and 12 show examples of the latter.
In this method, the electric wires 31 are arranged in a row in a flat manner,
The ends of the conductor portions 33 are joined in a bundle. The protective case 40 includes a case main body 42 and a lid 44, and a lock portion 46 that locks the upper surface of the case main body 42 in a closed state is provided on a side edge of the lid 44. Case body 4
2 has a terminal accommodating portion 50, and a concave portion 52 which is lower by one step is provided on the inner bottom surface. The concave portion 5 corresponding to the concave portion 52 has a concave portion 5 when the lid 44 is closed.
2 is provided with a convex portion 54 that penetrates into the inside.

When the terminal connection portion 35 is accommodated in the protective case 40 and the lid 44 is closed, the convex portion 54 enters the concave portion 52 and the electric wire 31 is forcibly bent or bent. Then, the bent or bent portion becomes a resistance, and the protective case 40 is held at the end of the electric wire 31 against the tensile force.

[0009]

However, the former protective case 10 forcibly bends and accommodates the rigid terminal connection portion 5, so that the operation is difficult and the load on the joint is large. There is a problem that the joining surface is easily peeled.

[0010] The latter protective case 40 is provided with an electric wire 31.
Need to be accommodated side by side, there is a problem that the width becomes large. Further, when accommodating electric wires of different sizes, the recess 5
There is a problem that the gap e between the projection 2 and the projection 54 must be changed, and a protective case must be prepared for each wire size.

SUMMARY OF THE INVENTION The present invention provides a protective case for a wire terminal connecting portion which is simple in operation, has little load on a joint portion, can be reduced in size, and can accommodate wires of different sizes in consideration of the above circumstances. The purpose is to:

[0012]

According to the first aspect of the present invention,
A box-shaped case main body having a terminal accommodating portion for accommodating a terminal connection portion joined by bundling conductor terminal portions of a plurality of electric wires, an upper surface and one side surface being open, and a lid for closing the upper surface of the case main body In the protective case of the electric wire terminal connecting portion, which is inserted between the plurality of electric wires at the time of accommodating the electric wire on the bottom wall near one open side surface of the case main body, the electric wire is prevented from coming off from the protective case. projecting the stopper piece, before
On the inner surface of the cover, with the upper surface of the case body closed
A vertical surface that is in contact with the inner end surface of the stopper piece;
Push the electric wire on the top of the topper to both sides of the stopper.
A projection is provided on the inner surface of the lid .

According to a second aspect of the present invention, a plurality of electric wires are connected.
Co when accommodating a terminal connecting section which is joined to the body portion terminal bundle
In addition, a terminal connection with both sides and the upper side open along the axial direction of the wire
A case body having a connection portion accommodating portion, and an upper portion of the case body
Terminal connection part accommodating part on the terminal connection part side in a state where
And a lid having a wall for closing the opening of the case.
Inserted between multiple wires when the wires are stored
Insert a stopper piece to prevent the wire from coming out of the case body.
It is characterized by having been provided .

[0014]

When the terminal of the electric wire is accommodated in the protective case according to the first aspect of the present invention, the terminal connecting portion is located at the back, the electric wire is pulled out from one open side, and a stopper piece is inserted between the electric wires. By doing so, when a tensile force acts on the wire, the terminal connection portion of the wire is caught on the stopper piece,
Omission is prevented. Further, when the lid is closed, the projection pushes the electric wire that has not been placed on the stopper piece to the side of the stopper piece, so that the electric wire can be reliably hooked on the stopper piece. Further, since the vertical surface of the projection is in contact with the inner surface of the stopper piece, the projection and the stopper piece overlap, and a plurality of electric wires are reliably distributed to both sides of the stopper piece.

When the terminal of the electric wire is accommodated in the protective case according to the second aspect of the present invention, the electric wire is accommodated in the case main body with the terminal connecting portion protruding from one side and the stopper piece is inserted between the electric wires. . This makes it easier to spread the gap between the electric wires, and the stopper piece can be easily inserted between the electric wires. Next, the terminal connection part is moved onto the case main body by pulling the electric wire. Then, the upper part of the case body is closed by the lid. In this case, even if a tensile force acts on the electric wire, the terminal connecting portion of the electric wire is caught by the stopper piece, and the terminal connecting portion is prevented from falling out of the protection case.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a protective case for an electric wire terminal according to the present invention.

First Embodiment FIGS. 1, 2 and 3 show a first embodiment of the present invention. 1 shows a state before the terminal of the electric wire is accommodated, and FIG. 2 shows a state before the terminal of the electric wire is accommodated and the lid is shown. FIG. 3 is a side view showing a state in which the electric wires are housed.

In these figures, 101 is an electric wire, 10
3 is a conductor part, 105 is a terminal connection part. The plurality of electric wires are bundled with the ends of the conductor portions 103 and integrally joined in a block shape having a rectangular cross section.

The protective case 310 has a rectangular box-shaped case body 1 having a closed bottom and three sides, and an open top and one side.
12 and a hinge 1 on one long side edge of the case body 112.
And a lid 116 that is connected to be openable and closable via. The lid 116 is attached to the case body 112 by the lid 116.
A lock portion 120 is provided which engages with the lock portion 118 on the case body 112 side with the upper surface of the case closed.

The case body 112 has a terminal accommodating portion 1 for accommodating a terminal portion of the electric wire 101 along the longitudinal direction thereof.
A stopper piece 3 having a right-angled triangular shape when viewed from the side face is provided on the bottom wall near one open side face.
40 are protrudingly provided. The height of the stopper piece 340 matches the height of the side wall. In the present embodiment, the lid 1
On the inner surface of the projection 16, there is provided a projection 360 for pushing the electric wire 101 hooked on the upper part of the stopper piece 340 on both sides of the stopper piece 340.

The stopper piece 340 has a sloped outer end face, an inner end face perpendicular to the bottom wall, and a sharp apex. Also, the protrusion 360
Is of triangular shape, one of the three sides is
As shown in FIG. 7, the other two side surfaces are surfaces obliquely directed to both sides of the stopper piece 340 when the lid 116 is closed. Then, the vertex is located exactly on the center line of the stopper piece 340. Note that the inner end surface of the stopper piece 340 and the vertical surface of the projection 360 are in a positional relationship such that they substantially coincide with each other.

When the terminal of the electric wire 101 is accommodated in the protective case 310 having such a structure and the lid 116 is closed, as shown in FIG. 4, the protrusion 360 pushes back the electric wire 101 placed on the stopper piece 340 and disengages it. , Stopper piece 34
Push both sides of 0. Therefore, by simply closing the lid 116, the electric wires 101 can be appropriately distributed without requiring extra force, and the housing operation is simplified. The triangular shape of the stopper piece 340 also promotes the wire distribution effect.

Second Embodiment Next, a second embodiment will be described with reference to FIGS.

As shown in FIG. 6, the protective case 410 of this embodiment includes a case body 412 having both sides and an upper surface open along the axial direction of the electric wire, and a lid 414 for closing the upper part of the case body 412. . The case body 412 includes a bottom wall 416 having a substantially triangular shape on one side, and side walls 418a and 418b provided on both sides of the bottom wall 416. An approximately triangular terminal connecting portion housing portion 420 gradually narrowing toward the tip is formed on one side of the bottom wall 416, and an electric wire housing portion 422 for accommodating an electric wire is formed on the other side. Both sides and the upper surface along the axial direction of the electric wire of the terminal connection portion housing portion 420 are open. Also, the side walls 418a and 418b are formed on both sides of the electric wire housing 422. A middle portion between the side walls 418a and 418b and a rear end opposite to the terminal connection portion accommodating section 420 has side walls 418a and 418b.
A triangular stopper piece 424 that is inclined downward from the same height as 18b toward the opening side protrudes.

On one side wall 418a, locking projections 426, 426 project from the outer periphery. These locking projections 426, 426 are inserted and locked in locking holes 436, 436 provided in the lid 414 to be described. Further, the lid 41 is connected to the upper end of the other side wall 418 b via a hinge 428.
4 are integrally formed.

The lid 414 is connected to the bottom wall 41 of the case body 412.
6 comprises a bottom wall 430 having substantially the same shape as that of FIG. 6 and a side wall 432 formed at the outer peripheral end except for the side end to which the hinge 428 is connected.

The side wall 432 includes three wall portions 432 a, 432 b, and 432 c corresponding to the outer shape of the terminal connection portion housing portion 420 of the case main body 412, and a side wall 434. When the upper portion of the case main body 412 is closed, the wall portions 432a and 432c close both sides in the width direction of the terminal connection portion housing portion 420, and the wall portion 432b is connected to the terminal connection portion housing portion along the axial direction of the electric wire. The open portion of 420 is closed. Further, rectangular locking holes 436, 436 into which the above-described locking projections 426, 426 are inserted and locked are formed in the side wall 434.

To accommodate the terminal connecting portion 438 in the protective case 410, first, as shown in FIG. 8A, the terminal connecting portion 438 is connected to the bottom wall 41 of the case main body 412.
The stopper piece 424 is inserted between the plurality of electric wires 101 in a state of protruding from the wire 6. In this case, the terminal connection unit 43
When the stopper piece 424 is to be inserted between the electric wires 101 immediately before 8, the gap between the electric wires is difficult to spread immediately before the stopper piece 424.
It is hard to insert 24. However, at a position distant from the terminal connection portion 438, the gap between the electric wires 101 is easily opened, and the stopper piece 42
4 can be easily inserted between the electric wires 101.

Then, a stopper piece 424 is provided between the electric wires 101.
8B, the terminal connecting portion 438 is positioned on the terminal connecting portion accommodating portion 420 of the case main body 412 (in the direction of arrow a) as shown in FIG.
The electric wire 101 is pulled and moved in a direction to bring the 38 closer to the stopper piece 424. At this time, the stopper piece 424
Is formed in a triangular shape, so that it can be easily moved between the electric wires 101.

The terminal connection section 438 is connected to the terminal connection section accommodating section 42.
After moving upward, the lid 414 is rotated to close the upper part of the case main body 412 as shown in FIG. In this case, the locking projections 426, 426 of the side wall 418 are inserted and locked into the locking holes 436, 436 of the side wall 434 and the side wall 41.
8 and 434 overlap with each other, and
0, ie, one side along the axial direction of the electric wire and both sides in the width direction are walls 432a, 432b, 432
closed by c. Thereby, the terminal connection part 438 can be accommodated in the protection case 410 and protected.

According to the present embodiment, since the stopper piece 424 is inserted between the electric wires 101 at a position away from the terminal connecting portion 438, the space between the electric wires 101 can be easily opened, and the stopper piece 424 can be easily inserted. be able to. This facilitates the work of housing the terminal connection unit 438. Also,
Since it is not necessary to forcibly bend the terminal connection portion 438 to accommodate the terminal connection portion 438, a load on the joint portion is small.

Further, both sides of the case body 412 along the axial direction are opened, and the terminal connecting portion 438 is moved in the axial direction to be accommodated in the case body 412, so that the case body 412 can be shortened as a whole. , Miniaturization becomes possible. Also, electric wires of different sizes can be accommodated.

It should be noted that the terminal connection part 438 is
0, the force applied to the case body 412 is determined by the tensile force applied to the stopper piece 424 and the case body 4.
The opening force formed by the opening 12 and the lid 414 is mainly applied to the opening, and no force is applied to the walls 432a and 432c. Therefore, the walls 432a and 432c may be provided on the case main body 412.

[0034]

As described above, according to the first aspect of the present invention, the stopper piece inserted between the electric wires is provided on the bottom wall of the case body, and the terminal connecting portion of the electric wire is hooked on the stopper piece. With this configuration, there is no need to forcibly bend and accommodate the terminal connection portion, and the accommodation operation can be simplified.
In addition, since unreasonable deformation is not applied to the terminal connection portion, the possibility of peeling of the joint portion is reduced. In addition, the width of the protective case can be reduced because the stopper pieces are simply inserted and inserted between the wires, and there is no need to store the wires side by side. Further, since the structure is not such that the electric wire is sandwiched in the gap between the concave portion and the convex portion, electric wires of different sizes can be accommodated. Furthermore, the projection provided on the inner surface of the lid pushes the electric wire that has not been placed on the stopper piece to the side of the stopper piece, so that the electric wire can be securely hooked on the stopper piece. In addition, since the upper surface of the case body is closed and has a vertical surface that contacts the inner end surface of the stopper piece, the protrusion and the stopper piece overlap, and a plurality of wires are securely inserted on both sides of the stopper piece. Can be sorted.

According to the second aspect of the present invention, the electric wires are housed in the case body with the terminal connecting portions protruding from one open side surface, and after inserting the stopper piece between the electric wires, the electric wires are pulled. Since the terminal connection portion can be accommodated in the case main body, the space between the wires can be easily widened, and the stopper piece can be easily inserted between the wires, so that the workability can be improved. Further, since the terminal connection portion is housed in the terminal connection portion housing portion by pulling the electric wire, the entire case body can be shortened, and the size can be reduced.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a first embodiment of the present invention, and is a perspective view showing a state where a terminal connection section is about to be accommodated in a protective case of the embodiment.

FIG. 2 is a perspective view showing a state in which a terminal connection portion is accommodated in a protective case according to the first embodiment of the present invention and a lid is being closed.

FIG. 3 is a side view of the state of FIG. 2 as viewed from a direction in which an electric wire extends.

FIG. 4 is a side view showing a state in which the terminal connection portion is accommodated in the protective case according to the first embodiment of the present invention, and the lid is being closed.

FIG. 5 is a side sectional view showing a relationship between a protrusion and a stopper piece when the cover is closed in the protective case according to the first embodiment of the present invention.

FIG. 6 is a perspective view showing a protective case according to a second embodiment of the present invention.

FIG. 7 is a perspective view showing a protection case according to a second embodiment of the present invention, showing a state in which a terminal connection portion is accommodated.

FIG. 8 shows a protection case according to a second embodiment of the present invention;
(A) is a plan view showing a state before accommodating the terminal connection unit,
(B) is a top view showing the state where the terminal connection part was stored.

FIG. 9 is a perspective view showing a state in which a terminal connection section is about to be accommodated in a conventional protective case.

FIG. 10 is a plan view showing a state where a terminal connection portion is housed in a conventional protective case.

FIG. 11 is a perspective view showing a state where a terminal housing section is about to be housed in another conventional protective case.

FIG. 12 is a side sectional view showing a state in which a terminal connection portion is accommodated in another conventional protection case.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 101 Electric wire 103 Conductor part 105,438 Terminal connection part 112,412 Case main body 310,410 Protective case 116,414 Cover 340,424 Stopper piece 360 Projection 420 Terminal connection part accommodation part

Continuation of the front page (56) References JP-A-4-215269 (JP, A) JP-A-4-24266 (JP, U) JP-A 53-191979 (JP, U) JP-A 62-197271 (JP) , U) Japanese Utility Model 63-194465 (JP, U) Japanese Utility Model 60-84910 (JP, U) Japanese Utility Model 2-49646 (JP, Y2) (58) Fields surveyed (Int. Cl. ⁷ , DB) (Name) H01R 4/70 H01R 4/22

Claims (2)

(57) [Claims] 1. A box-shaped case main body having a terminal accommodating portion for accommodating a terminal connecting portion formed by bundling and joining conductor portions of a plurality of electric wires, an upper surface and one side surface being open, and an upper surface of the case main body And a cover for closing the wire, wherein the wire from the protective case is inserted between the plurality of wires when the wires are housed, on the bottom wall near one open side of the case body. A stopper piece is provided to prevent the case from coming off , and the upper surface of the case main body is attached to the inner surface of the lid.
A vertical surface that contacts the inner end face of the stopper piece when closed
A wire placed on top of the stopper piece
A protection case for a wire terminal connecting portion, wherein projections for pushing into both sides of the piece are provided on an inner surface of the lid . 2. The method according to claim 2, wherein the conductor ends of the plurality of electric wires are bundled and connected.
Accommodates the combined terminal connection and extends along the axial direction of the wire.
The terminal connection unit housing part with both sides and the upper side opened
Case body and the case body with the top closed.
A wall that closes the opening of the terminal connection housing on the terminal connection side
When the wires are housed in the case body.
To the case body
A protective case for a wire terminal connection portion, wherein a stopper piece for preventing a wire from coming off is provided .