JP2012170263A - Protector for wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent detachment of a lid from a body even if a hinge part is damaged in a protector in which the body and the lid are integrally formed via the hinge part.SOLUTION: A protector includes: a body having a bottom wall and both side walls for storing a wire harness; and a lid connected to a projecting end of one side wall of the body via a hinge part. The protector further includes lock parts coupling the other end of the lid on a side opposite to the connection part by the hinge part and the other side wall of the body to each other. The hinge part is installed between one side wall of the body and one end of the lid partially in the length direction. In portions where the hinge part is not installed, locked parts and lock parts each coupling one side wall of the body and one end of the lid to each other are installed.

Description

  The present invention relates to a protector for a wire harness, and in particular, in a protector integrally formed by connecting one end of a lid in the width direction to a body of a protector via a thin hinge, even if the thin hinge is damaged, the lid and the body The connection is ensured so that the wire harness does not protrude from between the lid and the main body.

2. Description of the Related Art Conventionally, a wire harness routed in a vehicle such as an automobile has an external protector made of a resin molded product in an area where it is necessary to protect the wire harness from an external interference material and to regulate the route of the wire harness.
The protector comprises a substantially bowl-shaped main body and a lid for closing the upper surface opening of the main body, and the main body and the lid as proposed in Japanese Utility Model Laid-Open No. 6-29030 are integrated with a thin hinge portion. There are cases where the body and the lid are molded separately.

  In the former integrated protector, the protector 100 is usually integrally formed with the main body 101 and the lid 102 connected via a thin hinge 103 as shown in FIG. This integrated type has advantages that parts management is easy and that the side end of the lid 102 opposite to the thin hinge 103 and the main body may be locked together.

  However, in the protector in which the main body 101 and the lid 102 are integrated via the thin hinge 103, the thin hinge 103 is thin and low in strength, and is rotated 180 degrees as shown in FIG. Since the lid 102 is closed and the lock portion 105 of the lid 102 and the locked portion 106 of the main body 101 are aligned and locked, if the lock position is shifted and the lock operation is performed again, the rotation frequency of the lid 102 increases. The thin-walled hinge portion 103 is likely to be whitened with small cracks. In this state, if any impact is applied, a large crack is likely to occur in the thin hinge portion. If the thin hinge part cracks and the thin hinge part breaks, the main body and the lid are not locked together on the thin hinge part side, so the main body and the lid may be separated, and the electric wire may protrude from between the main body and the lid. . Therefore, when a crack occurs in the thin hinge portion, it is necessary to wind the adhesive tape from the main body to the lid so that the main body and the lid do not separate.

Utility Kaihei 6-29030

  The present invention provides a protector in which the main body and the lid are integrally formed through a thin-walled hinge portion, and the shape of the thin-walled hinge portion is improved so that the positioning at the time of lock coupling between the lid and the main body can be smoothly performed. It is an object of the present invention to reduce the occurrence of whitening of the portion and to maintain the connection between the lid on the thin hinge portion side and the main body even if the thin hinge portion is whitened and cracked.

In order to solve the above-mentioned problem, the present invention is a protector comprising a resin molded product that is externally mounted on a wire harness routed in a vehicle,
A main body having a bottom wall and both side walls for accommodating the wire harness, and a lid connected to a protruding end of one side wall of the main body via a hinge portion,
A locking portion that is coupled to the other end of the lid opposite to the connecting portion by the hinge portion and the other side wall of the main body; and
The hinge portion is partially provided in the length direction between one side wall of the main body and one end of the lid, and the one side wall of the main body and one end of the lid are provided in a place where the hinge portion is not provided. There is provided a protector for a wire harness, characterized in that a locked part and a lock part are provided for coupling the two to each other.

  As described above, in a protector in which one side wall of the main body and one of the lids are connected by a hinge part, a lock part that locks and connects the main body and the cover is not provided on the side connected by the hinge part. In the protector of the present invention, a lock portion is provided at a location where the hinge portion is not provided on the side to be connected by the hinge portion. Thereby, even if the hinge part is cracked and the main body and the lid are not connected at the hinge part, the connection between the main body and the lid can be maintained at the lock coupling part.

  The hinge portion includes a first thin portion of a connecting portion with the side wall of the main body, a second thin portion of a connecting portion with one end of the lid, and a portion continuous with the first thin portion and the second thin portion, respectively. The first thick part and the second thick part, and the central thin part connecting the other end of the first thick part and the other end of the second thick part. The hinge part is shaped to bend inwardly surrounded by the main body and the lid with the thin part and the central thin part as fulcrums.

  In the conventional protector, as shown in FIG. 8, the thin-walled hinge portion is curved in a state in which the lid protrudes outside the lid and the main body with the lid closed, but the hinge portion of the present invention closes the lid. In the state, it protrudes in a V shape inside the lid and the main body, and finally the first thick part and the second thick part overlap each other. In this way, the hinge part is accommodated inside the protector without projecting to the outside, so that the hinge part is not subjected to an impact due to the external interference material, and the hinge part is not cracked.

  In addition, since the hinge part is provided with the first and second thick parts, positioning can be maintained even if the lid is long, and the lock coupling part between the lid on the opposite side of the hinge part and the main body is aligned. Can be easily and accurately performed, and the position of the lock coupling portion between the lid provided on the hinge side and the main body can be easily and accurately aligned.

Further, the length of the hinge portion is such that the lock portion provided on the lid in a state where the lid is arranged in parallel with the bottom wall of the main body and the opening of the main body is blocked is located directly above the locked portion of the main body. The lock portion is lowered and coupled to the locked portion.
By setting the hinge portion to the above-described shape, the lock portion of the lid can be inserted into the locked portion of the main body so as to be inserted downward from above, and insertion workability can be improved.

  As described above, in the protector in which the main body and the lid according to the present invention are integrally formed via the hinge portion, the lock engaging portion is provided between the main body and the lid on the side connected by the hinge portion. Therefore, even if the hinge part is damaged, it is possible to maintain the connection between the main body and the lid at the hinge part, and it is not necessary to wrap the adhesive tape around the main body and the lid, and the electric wire protrudes between the main body and the lid. Can be prevented. In addition, since the main body and the lid are formed as an integrally molded product, it is possible to maintain the advantage of easy component management.

It is a perspective view of the protector of the embodiment of the present invention. It is a top view of the protector of FIG. (A) is the sectional view on the AA line of FIG. 2, (B) is an enlarged view of the dotted-line surrounding part of (A). (A) is the side view of the B arrow direction of FIG. 2, (B) is a principal part enlarged view. The state which rotated the lid | cover 90 degree | times is shown, (A) is the sectional view on the AA line of FIG. 2, (B) is a side view of the B arrow direction of FIG. The state which rotated the lid | cover 180 degree | times is shown, (A) is the sectional view on the AA line of FIG. 2, (B) is a side view of the B arrow direction of FIG. The state which pushed down the lid | cover to the main body side and carried out the lock | rock coupling | bonding is shown, (A) is the sectional view on the AA line of FIG. 2, (B) is the side view of the B arrow direction of FIG. (A)-(C) are drawings which show a prior art example.

Embodiments of the protector of the present invention will be described below with reference to FIGS.
The protector 1 is an integrally molded product in which a main body 2 and a lid 3 are connected via a hinge portion 4.
The main body 2 is substantially bowl-shaped and includes a bottom wall 10 and side walls 11 and 12 erected from both ends of the bottom wall 10 in the width direction, and has an upper surface opening.
The lid 3 has a flat plate shape that closes the upper surface opening of the main body 10, and one end in the width direction is connected to the upper end of the side wall 11 of the main body 2 via the hinge portion 4. The hinge 4 is not provided on both sides in the length direction.

At both ends in the length direction of the main body 2, U-shaped lock frames 13, 14, 15, 16 serving as locked portions project from the upper ends of the outer surfaces of the side walls 11, 12. The lock frames 13 and 14 on the side wall 11 are provided at positions sandwiching the hinge portion 4.
Lock pieces 21, 22, 23, and 24 that serve as lock portions are protruded downward at four corners facing the lock frames 13 to 16 on the lid 3, and locking claws 21 a are formed at the lower ends of the lock pieces 21 to 24. ˜24a is projected.
The lock pieces 21 to 24 are inserted into the lock frames 13 to 16 from above, and the locking claws 21a to 24a are locked to the lower edges of the lock frames 13 to 16 for lock connection.

  As shown in FIGS. 3B and 4B, the hinge portion 4 becomes a connecting portion between the first thin portion 31 that becomes a connecting portion with the side wall 11 of the main body 2 and one end of the lid 3. The second thin part 32, the first thick part 33 and the second thick part 34 that are respectively continuous with the first thin part 31 and the second thin part 32, and the other parts of the first thick part 33 It consists of a central thin portion 35 connecting the end and the other end of the second thick portion 34. The first thick part 33 and the second thick part 34 have the same length.

  As shown in FIG. 3B, the second thin portion 32 connected to the end surface of the lid 3 is connected to the inner edge of the lid, and the first thin portion 31 connected to the side wall 11 of the main body 2 is provided on the side wall 11. It is connected to the outer edge of the end face.

  When the lid 3 is put on the main body 2, the hinge portion 4 has a V shape toward the inside surrounded by the main body 2 and the lid 3 with the first thin portion 31, the second thin portion 32 and the central thin portion 35 as fulcrums. As shown in FIG. 7, the first and second thick portions 33 and 34 are finally overlapped with each other.

  Next, the operation of passing the wire harness through the protector 1 and locking the lid to the protector main body 2 will be described.

As shown in FIGS. 3 and 4, the electric wire group of the wire harness 50 is inserted into the main body 2 from the upper surface opening of the main body 2 with the lid 3 opened. With the lid 3 opened, the hinge portion 4 protrudes in a mountain shape having the central thin portion 35 as a vertex.
After passing the wire harness 50 through the main body 2, the lid 3 is rotated with the hinge portion 4 as a fulcrum. As shown in FIGS. 5A and 5B with the lid 3 rotated 90 degrees, the lid 3 is located directly above the side wall 11 of the main body 2 and is linear. At this time, the hinge part 4 protrudes in the rotation direction.

When the lid 3 is further rotated 90 degrees and then rotated 180 degrees, as shown in FIGS. 6 (A) and 6 (B), the lid 3 is in a horizontal state closing the upper surface opening of the main body 2, but the hinge portion 4 is on the side wall. It becomes a lateral V shape toward the 12 side, and the lid 3 is in a state of floating above the main body 2 through the bent hinge portion 4.
In this state, the lock pieces 21 to 24 of the lid 3 are positioned directly above the lock frames 13 to 16 of the main body 2, respectively.

As shown in FIGS. 7 (A) and 7 (B), the lock pieces 21 and 22 on the hinge side are inserted into the lock frames 13 and 14 downward from the upper side, respectively, and locked. In addition, the lock pieces 23 and 24 on the anti-hinge side are inserted into the lock frames 15 and 16 downward from above, and are locked together.
Either the hinge-side lock coupling or the anti-hinge-side lock coupling may be coupled first. Also, after locking the lock pieces 21 and 23 on one end side in the length direction to the lock frames 13 and 15, the lock pieces 22 and 24 on the other end side in the length direction are locked and connected to the lock frames 14 and 16. Also good.

  At the time of lock coupling, the lock pieces 21 to 24 of the lid 3 are accurately aligned with the positions above the lock frames 13 to 16 of the main body 2, respectively. This is because the hinge portion 4 is provided with the first and second thick portions 33 and 34 to increase the rigidity of the hinge portion 4, so that the lid 3 is displaced with respect to the main body 2 when the hinge portion 4 rotates. Rather, as designed, the lock pieces 21-24 are positioned directly above the lock frames 13-16, respectively. Therefore, it is not necessary to rotate the lid 3 again in order to align the lock pieces 21 to 24 of the lid 3 with the lock frames 13 to 16 at the time of lock coupling. As a result, the lock operability is improved, and it is possible to prevent the occurrence of a whitening phenomenon in which small cracks are generated in the first, second, and central thin portions 31, 32, and 35 of the hinge portion 4, and the occurrence of cracks in the hinge portion 4 Can also be prevented.

  Even if the hinge portion 4 is cracked, the hinge portion 4 is located inside the protector 1 surrounded by the main body 2 and the lid 3, so that the hinge portion 4 is not easily subjected to an impact by an external interference material. It is also possible to prevent damage.

  Furthermore, even if the hinge part 4 is broken, the lock pieces 21 and 22 are locked to the lock frames 13 and 14 on both sides of the hinge part 4, so that the hinge part 4 side of the lid 3 is separated from the main body 2. The wire harness of the wire harness can be reliably prevented from protruding from between the lid 3 and the main body 2.

DESCRIPTION OF SYMBOLS 1 Protector 2 Main body 3 Cover 4 Hinge part 10 Bottom wall 11 Side wall 13-16 Lock frame of a to-be-locked part 21-24 Lock piece of a lock part 21a-24a Locking claw 31 1st thin part 32 2nd thin part 33 1st Thick part 34 Second thick part 35 Central thin part 50 Wire harness

Claims (3)

It is a protector made of a resin molded product that is externally mounted on a wire harness routed in a vehicle,
A main body having a bottom wall and both side walls for accommodating the wire harness, and a lid connected to a protruding end of one side wall of the main body via a hinge portion,
A locking portion that is coupled to the other end of the lid opposite to the connecting portion by the hinge portion and the other side wall of the main body; and
The hinge portion is partially provided in the length direction between one side wall of the main body and one end of the lid, and the one side wall of the main body and one end of the lid are provided in a place where the hinge portion is not provided. The protector for wire harnesses provided with the to-be-locked part and lock part which mutually couple | bond together.   The hinge portion includes a first thin portion of a connecting portion with the side wall of the main body, a second thin portion of a connecting portion with one end of the lid, and a portion continuous with the first thin portion and the second thin portion, respectively. The first thick part and the second thick part, and the central thin part connecting the other end of the first thick part and the other end of the second thick part. The protector for a wire harness according to claim 1, wherein the hinge portion is shaped to be bent inwardly surrounded by the main body and the lid, with the thin wall portion and the central thin wall portion as fulcrums.   The length of the hinge portion is such that the lock portion provided on the lid with the lid arranged parallel to the bottom wall of the main body and closing the opening of the main body is located directly above the locked portion of the main body. The protector for a wire harness according to claim 2, wherein the wire harness is configured to be lowered and coupled to the locked portion.

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