JPH08185908A - Splice section protector for wire harness - Google Patents

Abstract

PURPOSE: To provide a wire harness splice section protector of high workability, low cast and high tear and pull-out strength. CONSTITUTION: This protector is used to house and protect a splice section 4 where conductors 1a exposed from the ends of a plurality of wires 1 are connected to each other, and has a case body 11 with openings 11b and 11a formed at the rear and upper sides, and a cover 12 fitted to one end of the upper side for closing the opening 11a via a thin-walled hinge 13. Furthermore, flexible fastening pieces 11e and 12e are projected from the inner bottom of the case body 11 and the internal surface of the cover 12, and the splice section 4 is laid at the closed front 11b of the case body 11. In addition, a wire group is fastened at upper and lower side, with the upper and lower fastening pieces 11e and 12e flexed, and housed with a cable led out from the rear opening 11b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protector for accommodating and insulating a splice part connecting core wires exposed from the ends of a plurality of electric wires to each other. The electric wire can be reliably held even when a load is applied, and moreover, it can be easily and surely accommodated and held.

[0002]

2. Description of the Related Art Conventionally, as a protective cap or a protective housing for a splice portion of a wire harness of this type, for example, as shown in FIG. The splice portion 4 formed by connecting the terminals 1a and 1a with the terminal 3 is inserted into a bag-shaped tubular body (splice portion protection cap 5) made of elastomer or the like having one end open and the other end closed. This splice protection cap 5 and the insulation coatings 1b, 1b of the electric wires 1, 1
It is disclosed that the splice protection cap 5 is fixed by winding the tape with an adhesive tape 6 to insulate and protect the splice portion 4.

Further, in Japanese Unexamined Patent Publication No. 6-203891, as shown in FIGS. 9A and 9B, a protective housing 7 made of resin is provided, and a splice portion 4'of a plurality of electric wire terminals is provided in the protective housing 7. Is inserted, the electric wire group is passed over the concave portion 7a provided in the protective housing, and the electric wire group is press-contacted by the projection 7b protruding from the inner surface of the housing.

[0004]

However, when the conventional protection cap shown in FIG. 8 is used, the cap 5
When inserting the splice part 4 of the wire into the
Since it is necessary to expand the insertion port of, the workability is poor and
The exposed core 1a of the electric wire and the elastomer cap 5
Therefore, it is necessary to increase the thickness of the cap 5 or use a wear-resistant synthetic resin in order to prevent it from being pierced, resulting in high cost. In addition, each electric wire 1
It is weak against the force of tearing (peeling) (see arrows a and b) and the peeling strength is preferably about 7 kgf, but only about 2 kgf. Therefore, when a strong tearing force is applied, both the adhesive tape 6 and the cap 5 are twisted toward the closed end face side, and finally the cap 5 is disengaged from the splice portion 4, exposing the core wire and connecting the splice portion. There was a risk that it would come off.
Further, even when the backward pulling force in the direction of the arrow c is applied to the electric wire, it is weak against the pulling force and the cap 5
The electric wire and the splice portion 5 may be pulled out, the core wire may be exposed, and the splice portion may be disconnected.

When the protective housing 7 shown in FIG. 9 is used, the electric wire is pressed between the concave and convex portions provided on the inner surface of the housing to hold the electric wire 1 even if a pulling force is applied to the electric wire 1. Although it is prevented from coming off, since the dimension between the concave and convex portions is constant, when the amount of electric wires to be inserted increases, the cover 7d having the convex portion 7b is attached to the case main body 7
There is a problem that the electric wire cannot be locked in the housing and the electric wire cannot be housed and protected in the housing. In addition, the splice portion 4 ′ of the wire end is replaced with the rigid accommodating portion 7 formed of a closed tubular portion.
Although it is inserted into c and fixed, it cannot be inserted if the splice portion 4'is larger than the size of the rigid housing portion 7c. That is, there is a problem in that the protective housing has to be provided in correspondence with the size of the splice portion and the number of electric wires, which is not versatile. Further, the rigid housing portion 7
Since c is in the closed state as described above, it is not possible to confirm the insertion state during the insertion work of the electric wire and the splice portion, so that the splice portion 4'is not accommodated in the rigid accommodation portion 7c. May occur.

The present invention has been made in order to solve the above problems, and has strength against both tearing force and pulling force, surely accommodating and protecting the splice portion of the wire end, and the splice. It is an object of the present invention to provide a protector capable of easily and surely inserting a part.

[0007]

In order to achieve the above object, the present invention is to protect and store a splice portion connecting core wires exposed from terminals of a plurality of electric wires to each other. A case main body having a rear surface and an upper surface opened, and a cover for closing the opening at one side edge of the upper surface of the case main body through a thin hinge portion, and an inner bottom surface of the case main body and an inner surface side of the cover. And a locking piece having more flexibility is projected, the splice portion is arranged on the closed front side of the case body, and the wire group is locked from above and below with the vertical locking piece bent. There is provided a splice part protector for a wire harness in which an electric wire is led out from the rear opening and accommodated.

According to a second aspect of the present invention, the case body and the cover have a shape in which a cylindrical body is divided into two in the axial direction, and the locking pieces provided on the case body and the cover are semi-circular thin-walled films and vertically opposed to each other. The splice part protector for a wire harness according to claim 1, which is formed at a position and extends and bends the thin film-like locking pieces by the wire group to restrain and lock the wire group from above and below. . In both the case body and the cover, the thin film-like locking piece extends from the entire inner peripheral surface including the bottom surface to the opening side tip at a position close to the rear opening end, and has a large height. It is preferable that a semicircular locking piece having a gradually decreasing height is provided so as to protrude from the closed front surface side (claim 3).

According to a fourth aspect of the present invention, the locking pieces projecting from the case body and the cover project from the opposite positions on the bottom surface of the case body and the inner surface side of the cover, respectively, inclining toward the front surface side. The wire harness splice protector according to claim 1, wherein the stop piece is bent toward the front side to lock the wire group from above and below.

According to a fifth aspect of the present invention, a splice portion connecting core wires exposed from ends of a plurality of electric wires to each other is housed and protected, and a case main body having a rear surface and an upper surface opened, and the case main body. A cover that closes the opening through a thin hinge portion on one side edge of the upper surface of the case, and a flexible locking piece that inclines from the inner bottom surface of the case body toward the closed front surface is provided to project. On the other hand, on the inner surface side of the cover, a protrusion is provided at a position facing the locking piece,
The splice portion is arranged on the closed front side of the case body, the lower edge of the electric wire group is locked in a state where the locking piece is bent, and the upper surface is pressed by the projection to lock.
Provided is a splice part protector for a wire harness, in which an electric wire is led out from the rear opening and accommodated.

Further, in a sixth aspect of the present invention, there is provided a splice part protector for a wire harness according to the fourth or fifth aspect, in which the tip end surface of the locking piece is provided with irregularities.

All of the splice protectors according to the first to sixth aspects are integrally molded of resin,
The case main body and the cover are provided with a lock portion and a locked portion that are engaged with each other, and the cover is closed after the electric wire is inserted to lock the case main body.

[0013]

In the splice protector according to the first aspect, the splice portion of the wire harness can be inserted into the case body from the top opening with the cover opened, and the case body and the cover can be closed with the cover closed. And the locking pieces protruding from both of them can be locked in a state of being bent by the electric wire group.
Therefore, even if the number of wire groups is different and the diameter of the wire harness is different, it can be absorbed by the bending of the locking piece, the wire group can be reliably held, and damage to the wire group does not occur. Can be held securely.

In the splice protector according to claim 2,
Since the locking pieces are in the form of a thin film, portions of the locking pieces that are in contact with the electric wire group extend and bend, and the upper and lower locking pieces that face each other restrain and lock the electric wire group. In particular, claim 3
As described above, at the position close to the rear surface side opening, since the upper and lower locking pieces project so as to close the entire opening, the restraining and locking force with respect to the electric wire is large. Therefore, the movement of the electric wire that acts when the electric wire is subjected to a tearing force or a pulling force is prevented by the upper and lower locking pieces. Also, since the height of the locking piece is lowered toward the front side of the closing side, the insertion space of the splice part can be secured, and the resistance of the locking piece when locking the cover is small, so that the cover can be easily covered. Can be fixed to the case body.

In the splice protector according to claim 4,
Locking pieces protruding from the case body and the cover facing each other,
Since it is inclined to the front side on the closed side, when it comes in contact with the wire group, it bends further forward while the inclination angle decreases,
Lock the wire group from above and below. Therefore, when a pulling force or a tearing force that moves the wire group to the rear is applied, the locking piece elastically recovers and rises, the gap between the upper and lower locking pieces is narrowed, and the wire group is firmly clamped from above and below, Prevent the movement of electric wires.

In the splice protector according to claim 5,
Since the locking piece that has flexibility from the case body and the projection from the cover are vertically opposed to each other, the wire group is pushed by the projection from above and the locking piece is locked in the bent state. To be done. Therefore, similarly to the protector of claim 1, even if the diameter of the wire harness is different, it can be absorbed by the bending amount of the locking piece.
Further, since it is locked in a state of being sandwiched between the locking piece inclined forward and the projection, like the protector of claim 4,
When a pulling force or a tearing force that moves the wire group to the rear is applied, the locking piece elastically returns and rises,
The gap between the protrusions becomes narrower, and the wire group is firmly clamped from above and below, preventing movement of the wires.

As described in claim 6, when the front end surface of the locking piece inclined forward is provided with irregularities, the contact surface with the electric wire does not slip and the locking force becomes large.

[0018]

The present invention will be described in detail below with reference to the embodiments shown in the drawings. 1 and 2 show a first embodiment,
The splice part protector 10 includes a core wire 1a obtained by peeling and exposing the ends of a plurality of electric wires 1 that form a wire harness.
Is for accommodating and protecting the splice portion 4 connected by ultrasonic welding or terminal crimping, and a case body 11 and a cover 12 are provided by axially dividing a synthetic resin cylindrical body into two parts. In addition to providing openings 11a and 11b on the upper surface and the rear surface of the case body 11, the cover 1
Openings 12a and 12b are provided on the bottom surface and the rear surface of 2.

A cover 12 is integrally formed on one edge of the upper surface opening 11a of the case body 11 via a thin hinge portion 13, and the cover 12 forms an upper surface opening 1 of the case body 11.
1a is closed. In addition, the case body 11
The cover 12 is provided with a locked portion 11c and a lock portion 12c that are detachably engaged with the other side edge facing the thin hinge portion 13. The lock portion 12c is configured such that a locking step portion (not shown) protruding from the tongue portion is engaged with the locked portion 11c.

The inner peripheral surface of the case body 11 and the inner peripheral surface of the cover 12, which are in the shape of a semi-cylindrical shape, are bent toward the front surfaces 11d, 12d closed from the rear openings 11b, 12b with a required space therebetween. Locking pieces 11e and 12e
Is provided. These locking pieces 11e, 12e are formed in a vertically opposed position as a semicircular thin film shape along the inner peripheral surfaces of the case body 11 and the cover 12, and in the present embodiment, they are provided with a required interval. Three locking pieces 11e-
1, 11e-2, 11e-3, 12e-1, 12e-
2, 12e-3 are projected.

The locking pieces 11e-1 and 12e-1 located on the rear surface openings 11b and 12b side extend from the entire inner peripheral surface including the bottom surface to the top ends of the top surface opening 11a and the bottom surface opening 12a side and have a height. Is large. Also, the locking piece 11e
Locking pieces 11e-2, 12e-2, 11e-3, 12e- which are located on the front surfaces 11d, 12d side of -1, 12e-1.
3 is formed in a semicircular shape whose height gradually decreases. In this embodiment, as shown in FIG. 2A, the locking piece 11e-
1, 12e-1 has locking pieces 11e-2, 12e-2 on the outer circumference of the electric wire group positioned at the rear openings 11b, 12b.
On the outer periphery of the insulation coating on the terminal side of
The e-3 is formed at a position where it abuts on the splice portion 4.

When the wire harness is housed in the splice protector 10 to protect the splice part 4 of the terminal,
First, as shown in FIG. 1, with the cover 12 open,
The splice portion 4 is arranged on the front surface 11d side of the case body 11, and the wire harness is inserted through the upper surface opening 11a.
Since the upper surface of the case body 11 is opened, the operator can surely arrange the wire harness at a predetermined position while observing the insertion state of the wire harness and the splice portion 4.

Next, the cover 12 is attached to the thin hinge portion 1
3 as a fulcrum, the lock portion 12c is engaged with the locked portion 11c of the case body 11, and the case body 11 is rotated.
The upper surface opening 11a is closed to accommodate the wire harness. At this time, the case body 11 and the cover 12 have locking pieces 11e-1, 11e-2, 12e- which are provided so as to project from the inner peripheral surface.
1, 12e-2 is a wire group and locking pieces 11e-3, 12e
-3 is in contact with the splice portion 4. Since these locking pieces are formed as thin films as described above, as shown in FIGS. 2 (A) and 2 (B), the contact portion with the wire group extends and bends from the above state, and the case body 11 and the cover 12 are It does not prevent the engagement. Moreover, since the heights of the locking pieces 11e and 12e are sequentially reduced toward the front surfaces 11d and 12d,
An insertion space for the splice portion 4 can be secured, and when the cover 12 is locked to the case body 11, locking pieces 11e, 1
The resistance due to 2e is small, and it can be easily engaged and fixed with one touch.

In the mounted state, the upper and lower locking pieces 1 facing each other
The wire group is surrounded by 1e-1, 11e-2, 12e-1, 12e-2, and locking pieces 11e-3, 12e-.
The electric wire 1 is led out from the rear surface openings 11b and 12b while the splice portion 4 is surrounded by 3 and restrained and locked. In particular,
At positions close to the rear openings 11b and 12b, the upper and lower locking pieces 11e-1 and 12e-1 project so as to close the entire opening, and therefore the restraining and locking force with respect to the electric wire 1 is large.

When the electric wire 1 is subjected to the tearing force indicated by the arrows a and b in FIG. 2 (A) in the mounted state, the electric wire 1 and the splice portion 4 are surrounded by the respective locking pieces 11e and 12e. Since it is restrained by the above, the tearing force can prevent the electric wire 1 from moving in the vertical direction X. Therefore, it is possible to prevent the problem that the core wire 1a is exposed due to the movement of the electric wire 1 and the problem that the splice part 4 is disconnected. Further, even when the pulling out force shown by the arrow c in the figure is applied in the above-mentioned mounted state, the electric wire 1 does not move in the front-rear direction Y, and the core wire 1a is exposed and the splice portion 4 is connected in the same manner as above. There is no fear that it will come off.

Further, as described above, the locking pieces 11e, 1
Since the wire 2e is bent and held in a state of enclosing the outer circumference of the wire group, even if the outer diameter of the wire harness varies due to an increase or decrease in the number of the wires 1 forming the wire harness, the locking piece It can be absorbed by the bending of 11e and 12e, and the wire group can be reliably held. In addition, the wire group can be securely held without being damaged.

The above-mentioned upper and lower engaging pieces do not necessarily have to be successively lowered in height from the opening side on the rear side to the closing side on the front side. You may bend it.

FIGS. 3 and 4 show a second embodiment, in which the splice part protector 15 is formed by dividing a rectangular box-shaped case having an opening at the rear surface into two parts to form a case body 16 and a cover 17 each having a concave cross section. are doing. Further, as in the first embodiment, the case body 16 and the cover 17 are integrally formed on one side edge via the thin hinge portion 18, and are detachably attached to the other side edge facing the thin hinge portion 18. A locked portion 16c and a locking portion 17c that engage with each other are formed.

The case body 16 and the cover 17 have a bottom surface 16f of the case body 16 and an upper surface 1 of the cover.
Locking pieces 16e and 17e from the opposing positions of 7f, respectively
Is protruding. The locking pieces 16e and 17e are the front surface 16 closed from the vicinity of the rear surface openings 16b and 17b, respectively.
It is provided so as to be inclined at a required angle toward the d and 17d sides. Further, the locking pieces 16e, 17e are formed over substantially the entire width direction, and the tip end surface thereof is the upper surface opening 16a.
Alternatively, it extends to the bottom opening 17a. Concavo-convex portions 16g and 17g are provided on the tip surfaces of the locking pieces 16e and 17e that come into contact with the electric wire 1 so as to extend in the width direction orthogonal to the insertion direction of the electric wire 1. In this embodiment, a plurality of protrusions each having a triangular cross section extending in the width direction are provided to form the uneven portions 16g and 17g.

The splice part protector 15 is the first splicer protector.
Similar to the embodiment, with the cover 17 opened, the splice portion 4 is arranged on the front surface 16d side, and after inserting the wire harness into the case body 16 through the upper surface opening 16a, the thin hinge portion 18 is used as a fulcrum. The cover 17 is rotated to engage and lock the lock portion 17c and the locked portion 16c. At this time, since the respective locking pieces 16e and 17e are formed by inclining at a required angle, when they come into contact with the wire group due to the closing of the cover 17, the engaging pieces 16e and 17e bend while further reducing the angle of inclination, and these engagements are made. The stop pieces 16e and 17e are engaged with the upper and lower surfaces of the wire group in a sandwiched state.

In the mounted state, the rear openings 16a, 17a
When a tearing force or a pulling force is applied to the derived electric wire 1, the locking pieces 16e and 17e elastically return and stand up, and the gap between them is narrowed to firmly clamp the electric wire group from above and below. Block the movement of 1. Therefore, when a tearing force or a pulling force is applied to the attached electric wire 1, the electric wire 1 does not move, and there is no risk of exposing the core wire 1a or disconnection of the splice portion 4.

Further, since the concavo-convex portions 16g and 17g are provided on the tip surfaces of the respective locking pieces 16e and 17e, the contact surface with the electric wire 1 is prevented from slipping in the mounted state and the mutual locking force is increased. Can be Further, even when the amount of electric wires forming the wire harness is increased or decreased, the locking pieces 16e and 17e are flexed so that the difference in outer diameter of the wire harness can be absorbed and accommodated.

FIG. 5 shows a modified example of the case main body 16 and the cover 17 of the second embodiment, in which locking pieces 16e and 17e inclined at a required angle to the front surfaces 16d and 17d, a bottom surface 16f and a top surface facing each other. It is formed by cutting and raising 17f. As described above, also in the locking pieces 16e and 17e formed by cutting and raising, it is possible to obtain the same effect as the above.

6 and 7 show a third embodiment, in which the splice part protector 15 is replaced by the cover 17 having a concave cross section as shown in the second embodiment, and a flat plate-like cover 20 is used to cover the case body 16. The upper surface opening 16a is closed. The case body 16 has the same structure as that of the second embodiment. The cover 20 is provided with a protrusion 20e that protrudes downward from the inner surface that is substantially opposite to the tip surface of the locking piece 16e that projects from the case body 16 and that does not have flexibility.

When the wire harness is inserted through the case body 16 and the upper opening 16a is closed by the cover 20, the projection 20e of the cover 20 presses the wire group from above to lock the locking piece 16e in a bent state. To do. In this mounted state, the locking piece 16e inclined forward and the protrusion 20
Since it is locked with the wire group sandwiched between e and
Similar to the protector 15 of the second embodiment, when a pulling force or a tearing force that moves the wire group backward is applied, the locking piece 16e elastically returns and rises, and the protrusion 20
The gap with e becomes narrower, and the wire group can be clamped more firmly from above and below, and the movement of the wire can be prevented. Further, since the locking piece 16e is bent and the wire harness is inserted, even if the outer diameter of the wire harness is different, it is absorbed by the bending amount of the locking piece 16e, similarly to the protector 15 of the first embodiment. Can be accommodated reliably.

[0036]

As is apparent from the above description, in the splice part protector according to claim 1 of the present invention, since the wire harness is inserted from above into the case main body having the upper surface opened, the operator is required to wire the wire harness. Since it is possible to work while watching the insertion state of the harness and the splice portion, the wire harness can be easily and reliably arranged at a predetermined position. Further, after inserting the wire harness into the case body, by rotating the cover with the thin hinge portion as a fulcrum, the upper surface opening of the case body can be closed with one touch to protect the wire harness. Furthermore, in the attached state of the wire harness, since the locking pieces projected from both the case main body and the cover are bent and locked to the outer circumference of the wire group, the amount of wires constituting the wire harness increases or decreases. Even if the outer diameter of the wire harness is different,
It is possible to absorb the flexure of the locking piece and hold it securely, and to hold it securely without damaging the wire group.

In the splice protector according to the second aspect of the present invention, since the locking piece has a thin film shape, the portion of the locking piece that contacts the wire group extends and bends in the mounted state, and the wire group is surrounded by the opposing upper and lower locking pieces. Locked in place. In particular, claim 3
With the splice protector of, the upper and lower locking pieces project so as to close the entire opening at a position close to the rear side opening, so the binding locking force for the wire is large, and the wire is subject to tearing force and pulling force. The movement of the electric wire that acts in the case of being damaged can be reliably prevented by the upper and lower locking pieces. Therefore, as in the conventional example, it is possible to solve the problems such as the core wire being exposed and the splice portion being disconnected due to the movement of the electric wire. Also, since the height of the locking piece is lowered toward the front side of the closing side, the insertion space of the splice part can be secured, and the resistance of the locking piece when locking the cover is small, so that the cover can be easily covered. Can be fixed to the case body and closed.

In the splice protector according to claim 4,
Locking pieces protruding from the case body and the cover facing each other,
The wire harness is tilted to the front side, and when the wire harness is attached, the wire harness bends while the angle of inclination decreases further, and the wire group is locked while being clamped from above and below. When a tearing force is applied, the locking piece elastically recovers and rises, the gap between the upper and lower locking pieces becomes narrower, and the wire group can be strongly clamped from above and below to prevent movement of the wire.

In the splice protector according to claim 5,
Since the flexible locking piece is projected from the case body and the projection is opposed to the cover from the case, the electric wire group is engaged by the projection from above to bend the locking piece. Therefore, like the protector according to the first aspect, even if the diameters of the wire harnesses are different, the wire harnesses can be absorbed by the bending amount of the locking pieces and can be stored and protected in a reliable locked state. Further, since it is locked in a state of being sandwiched between the locking piece inclined forward and the projection, a pulling force or a tearing force for moving the electric wire group to the rear side is applied in the same manner as the protector according to claim 4. However, the electric wire does not move.

In the splice portion protector according to claim 6, since the tip end surface of the locking piece according to claim 4 or claim 5 which is inclined forward is provided with unevenness, the contact surface with the electric wire is The slippage is eliminated and the locking force can be increased.

[Brief description of drawings]

FIG. 1 is a perspective view showing a splice part protector of a wire harness according to a first embodiment.

2A and 2B show a state in which a wire harness is accommodated in the splice part protector of FIG. 1, FIG. 2A is a sectional view, and FIG. 2B is a side view of a rear opening side.

FIG. 3 is a perspective view showing a splice part protector of a second embodiment.

FIG. 4 is a cross-sectional view showing a state in which a wire harness is accommodated in the splice part protector of FIG.

FIG. 5 is a cross-sectional view showing a modified example of the case main body and the cover of the second embodiment.

FIG. 6 is a perspective view showing a splice part protector of a third embodiment.

7 is a cross-sectional view showing a state in which a wire harness is accommodated in the splice part protector of FIG.

FIG. 8 is an exploded perspective view showing a conventional splice part protector.

FIG. 9 shows another conventional splice part protector,
(A) is an exploded perspective view, (B) is a cross-sectional view showing the insertion state of the wire harness.

[Explanation of symbols]

 1 Wire 1a Core wire 4 Splice part 10 Splice part protector 11 Case body 11a Top opening 11b Rear opening 11d Front 12 Cover 12a Bottom opening 12b Rear opening 12d Front 13 Thin hinge part

Claims (6)

[Claims] 1. A case main body having a rear surface and an upper surface opened, and a side of an upper surface of the case main body, for housing and protecting a splice portion connecting core wires exposed from ends of a plurality of electric wires to each other. A cover that closes the opening through a thin hinge portion is provided at an edge, and an inner bottom surface of the case body and an inner surface side of the cover are provided with a more flexible locking piece, and the splice portion is provided on the case body. The splice part of the wire harness, which is arranged on the closed front side of the wire harness and locks the wire group from above and below in a state where the upper and lower locking pieces are flexed so that the wire is led out from the rear opening and accommodated. Protective equipment. 2. The case main body and the cover have a shape in which a cylindrical body is divided into two in the axial direction, and the locking pieces provided on the case main body and the cover are formed in a semicircular thin film shape at positions vertically opposed to each other. The splice part protector for a wire harness according to claim 1, wherein the thin film-like locking pieces are extended and bent by the wire group to restrain and lock the wire group from above and below. 3. The thin-walled film-like locking piece extends from the entire inner peripheral surface including the bottom surface to the opening-side tip at a position close to the rear surface opening end in both the case body and the cover. The splice part protector for a wire harness according to claim 2, further comprising a semicircular locking piece projecting from the front side of the closed front side with a large height to increase the height of the locking piece. . 4. The locking pieces projecting from the case body and the cover project from the opposite positions on the bottom surface of the case body and the inner surface side of the cover inclining toward the front side, respectively.
The wire harness splice protector according to claim 1, wherein the locking pieces are bent toward the front side to lock the wire group from above and below. 5. A case main body having a rear surface and an upper surface opened, and a side of an upper surface of the case main body, the spliced portion connecting core wires exposed from ends of a plurality of electric wires to each other. A cover for closing the opening via a thin hinge portion is provided at the edge, and a flexible locking piece that inclines toward the closed front surface side from the inner bottom surface of the case body is provided in a protruding manner. On the inner surface side, a protrusion is provided at a position facing the locking piece, the splice part is arranged on the closed front side of the case body, and the lower edge of the wire group is bent in the locking piece. While locking, press the upper surface with the above projection to lock,
A protector for a splice portion of a wire harness configured to lead an electric wire out of the rear opening and accommodate the electric wire. 6. The splice part protector for a wire harness according to claim 4 or 5, wherein the engaging piece is provided with irregularities on a tip end surface thereof.