JP2010166750A - Protector for wire harness - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the shape retaining property of a protector that is formed by bending. <P>SOLUTION: A protector consists of: a resin-made substrate having a flat plate shape when it is spread out; and ribs. In the center in the width direction of the substrate, at least one thin hinge portion continuous in the length direction is provided. The ribs are provided in contact with the thin hinge portion to be brought into contact with two inner faces of the substrate bent at the thin hinge portion. The substrate is kept in a bent state by the ribs. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a protector for a wire harness, and more particularly, to a protector made of resin that is sheathed on a wire harness routed in an automobile to protect a wire group of the wire harness and regulate a route.

This type of protector is injection-molded using a mold in a bowl shape having a U-shaped cross section having a bottom wall and both side walls.
However, if the production number of the vehicle model that mounts the wire harness that is to be sheathed with the protector is small, when the protector is formed by injection molding, the production cost is high due to the mold cost, and the shape of the protector is further complicated. There is a problem that the production cost increases.
For this reason, for example, in Japanese Patent Application Laid-Open No. 8-196016, a resin plate is punched into a required shape by press working and manufactured as a developed shape, and folded at the time of use to reduce the cost as a three-dimensional shape.

  Specifically, as shown in FIG. 14, two thin hinge portions 101 are provided along the length direction on a substantially rectangular substrate 100, and this is erected so that the central portion is the bottom wall 102, The protector 105 that accommodates the wire harness W / H is formed with the side walls 103 on both sides. After the wire harness W / H is passed through the protector 105, the tape 106 is wound around the outer peripheral surface.

However, in the protector 105, the space between the bottom wall 102 and the side wall 103 is merely bent by the thin hinge 101, and there is no bent holding part, so it is difficult to hold the both side walls 103 in an upright state. It is. In particular, when the amount of the wire harness W / H penetrating inside is small, there is a problem that both side walls 103 are inclined inward with the tape 106 wound around the outer periphery, and the three-dimensional shape tends to fall down. There is a problem with poor shape retention.
Moreover, since it is merely bent and bent, there is a possibility that the bottom wall and both side walls may be twisted or laterally displaced.

JP-A-8-196016

  The present invention has been made in view of the above problems, and it is an object of the present invention to be able to hold both side walls in an upright state from the bottom wall in a state in which a developed substrate punched by press molding is folded into a three-dimensional shape. Yes.

  In order to solve the above-mentioned problems, as a first invention, a thin hinge comprising a flat and flat resin substrate and a rib, the substrate being continuous at least in the length direction at a central position in the width direction. The wire harness protector is characterized in that the rib is attached in contact with the thin-walled hinge portion so as to be in contact with the two inner surfaces bent by the thin-walled hinge portion, and the bent state is maintained by the rib. Is provided.

The rib is, for example, a fan-shaped flat plate, a rectangular flat plate, or a triangle, and the two surfaces sandwiching one apex are brought into contact with two sides of the substrate bent by the thin hinge portion, and the bent shape is maintained. Yes.
Accordingly, the ribs can be kept standing while preventing the two surfaces of the substrate from falling to the inside of the side walls that stand upright from the bottom wall. In addition, even when the side wall is bent from the bottom wall at a required angle of less than 90 degrees, the rib can prevent the side wall from falling down.

The rib is attached to the substrate by providing a rib locking hole at a position along the thin hinge portion of the substrate, while providing a locking protrusion for inserting and locking the rib in the rib. May be press-fitted and fixed to the substrate.
Alternatively, the ribs may be disposed on the inner surface side of the substrate and the contact portion may be heated and welded, or may be fixed from the outer surface of the substrate by ultrasonic welding or resistance welding.

  Since the protector assembled as described above can punch the resin plate by press processing and provide a thin hinge portion, compared to the case of three-dimensional injection molding using a mold. Manufacturing cost can be greatly reduced.

Further, on the side that becomes the bottom wall of the substrate, tape winding tongue pieces are provided around the both ends in the length direction to fix the wire harness by tape winding.
The protector has an L-shaped section or a V-shaped section in a bent state, and a wire harness is inserted into a portion surrounded by the two surfaces having the L-shape or V-shape. In this state, the wire harness is attached to the tongue for winding the tape. It is taped to a piece and fixed.
Note that the outer surface of the protector through which the wire harness is inserted may be further taped to close the opening between the two bent sides.
Thus, if the wire harness is inserted into the space surrounded by the two surfaces and the two sides of the protector are arranged on the side of the interfering member, the wire harness can be protected and the route can be secured.

  Instead of the tape winding, a band portion is projected from the end portion in the length direction of the one side to be bent, and a band locking portion for inserting and locking the band portion is provided on the other side. May be. In this case, if the band portion is wound around the wire harness after being inserted through the wire harness and inserted and locked in the band locking portion, tape winding can be made unnecessary. In this case, since the band portion and the band locking portion are provided, injection molding is performed.

  A total of two ribs are provided, one on each side of the thin hinge, or one on one side and two on the other side of the rib. Is preferred. In this case, if one rib is provided at the position on the bottom wall side and two ribs are provided at the position on the side wall side, it is possible to reliably prevent the lateral displacement and twisting of the bottom wall and the side wall.

Two thin hinge portions may be provided at intervals in the width direction, and bent at the two thin hinge portions to form a generally U-shaped saddle shape having a bottom wall and both side walls.
Also in this case, ribs that come into contact with the two bent surfaces are provided across two thin hinge portions to prevent both side walls from falling inward on both sides of the bottom wall.
Further, the wire harness is held by tape winding in a state where the wire harness is inserted into the protector.

The substrate may be provided with two thin hinge portions continuously in the length direction at intervals in the width direction, and the substrate may be bent into a U-shaped cross section.
Further, the substrate may be provided with three thin hinge portions continuously in the length direction at intervals in the width direction, and the substrate may be bent into a square frame shape in cross section. In this case, a locking projection is provided along one end edge in the width direction, a locking hole corresponding to the locking projection is provided at the other end edge, and the locking projection is inserted and locked into the locking hole to form a bent shape. keeping.
In any case, when the rib is attached along the thin hinge portion at the boundary between the bottom wall and the both side walls in the bent state, the three-dimensional shape can be reliably maintained.

As a second aspect of the invention, a flat plate-like resin substrate having a developed shape and a separate flat lid plate are provided, and the substrate has two thin hinge portions in the length direction at intervals in the width direction. While being provided continuously, one of the locking holes or the locking projections is provided at intervals along both side edges in the width direction, while the locking holes or the locking projections are provided on both side edges of the lid plate. Projecting the other of
The substrate is bent at a thin hinge portion to have a U-shaped cross section having a bottom wall and both side walls,
The lid plate is fitted between both side walls, the both side walls and the lid plate are connected by engagement of the locking projections and the locking holes, and a cross-sectional square frame comprising the bottom wall, both side walls, and the lid plate The protector for wire harnesses characterized by holding the shape is provided.

In said 2nd invention, the bending shape of a board | substrate is hold | maintained by attaching a cover plate.
In this protector, after bending the board into a U-shaped cross section, a wire harness is inserted into the inside, and then the lid is placed on the upper ends of both side walls of the board and locked as described above.
Also in the second invention, it is preferable to provide tongue pieces for tape winding at both ends in the length direction of the portion to be the bottom wall.
Also in the second invention, when the rib attached to the substrate in the first invention is provided, the shape retention of the three-dimensional shape can be improved.

In the second invention, the lid plate is provided with a thin hinge portion in the width direction at intervals in the length direction, and the lid plate is bent by bending at the thin hinge portion, while both sides of the substrate in the width direction are provided. An edge may be formed into an uneven bent shape, and the lid plate and the both side edges of the substrate may be locked to provide a bent portion on one side of the cross-sectional square frame.
Thus, the four surfaces of the protector are not limited to a straight shape, and a bent portion can be provided. Thereby, when an external interference material is located in the area | region which arrange | positions a protector, interference with this external interference material can be prevented.
Also in the second invention, since the substrate and the cover plate can be formed by pressing the resin plate, the manufacturing cost can be greatly reduced.

  In the first invention, when the substrate is provided with three thin hinge portions spaced apart in the width direction and bent into a square frame shape to form a protector, the tip of one side wall is uneven. When the bent portion is provided, the protector having the bent portion can be obtained.

In the first invention, the substrate, and in the second invention, the substrate and the cover plate are not three-dimensionally formed by injection molding, but are formed by pressing, so a conventional mold is used. The manufacturing cost compared to the case of injection molding can be greatly reduced.
And in 1st invention, a rib can be provided and a bending shape can be hold | maintained, and in 2nd invention, since a cover plate is provided and it is set as the square frame shape of a cross section, a bending shape can be held. Therefore, the fall of the side wall which generate | occur | produces with the protector of the said patent document 1 can be prevented, and it can be set as the protector which improved shape retention property.

The protector of 1st embodiment of this invention is shown, (A) is a disassembled perspective view of an unfolded state, (B) is a top view of the state which attached the rib, (C) is a front view of a rib. It is an assembly drawing of a first embodiment. (A) (B) (C) is drawing which shows the modification of the latching protrusion of a rib. It is a perspective view which shows the state which penetrated the wire harness to the protector after an assembly. It is sectional drawing which shows the 1st modification of 1st embodiment. (A) (B) is drawing which shows a 2nd modification. (A) (B) is drawing which shows a 3rd modification. (A) and (B) are drawings which show a 4th modification. (A) (B) is drawing which shows a 5th modification. It is a perspective view of the deployment state of the protector of a second embodiment. It is sectional drawing which shows the assembled state of the protector of said 2nd embodiment. It is a perspective view of the unfolded state of the modification of 2nd embodiment. It is sectional drawing which shows the assembled state of the protector of the modification of said 2nd embodiment. It is drawing which shows a prior art example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Any of the embodiments described later is a protector that penetrates a wire harness routed in an automobile, and forms a protector by bending a flat substrate in a developed shape formed by pressing a rigid plastic plate having a required thickness. is doing.

1 to 4 show a protector 1 for a wire harness according to a first embodiment.
As shown in FIG. 1A, the protector 1 is formed by assembling a flat substrate 2 formed by pressing a resin plate and a rib 3. The substrate 2 is generally rectangular, and a thin hinge portion 4 continuous in the length direction is provided at a central position in the width direction W orthogonal to the length direction L, so that the substrate 2 is separated from the bottom wall 5 and one side wall 6. It is divided into two surfaces and bent at the thin hinge portion 4 so as to have an L-shaped cross section.

  The board 2 is provided with rib locking holes 2a and 2b on both side surfaces sandwiching the thin hinge portion 4. One rib locking hole 2 a is provided on the side to be the bottom wall 5, and rib locking holes 2 b are provided on both sides in the length direction across the rib locking hole 2 a on the side to be the side wall 6. In addition, tape winding tongues 2d and 2e are projected from both sides in the length direction on the side to be the bottom wall 5.

  The ribs 3 are three (3-1, 3-2, 3-3), and each is a 90-degree fan-shaped flat plate. As shown in FIG. 1C, rib locking holes 2a, 2b of the substrate 2 are formed on one straight side 3c sandwiching the 90 ° apex 3a of the rib 3 (3-1, 3-2, 3-3). A locking projection 3d that is press-fitted into is provided. The side sandwiched between the two sides of the straight sides 3b and 3c is an arc side 3f so that no edge is provided on the contact surface with the wire harness.

The locking projection 3d provided on the rib 3 has a substantially trapezoidal shape and is provided with locking step portions 3d1 on both sides, and the locking projection 3d is inserted into the narrow hole-shaped rib locking holes 2a and 2b provided on the substrate 2. The locking step 3d1 locks.
In addition, it is good also as a shape shown to FIG. 3 (A)-(C).
In FIG. 3A, the locking protrusion 3d of the rib 3 has a spherical head 3d2 at the tip, and is inserted and locked into the rib locking holes 2a and 2b made of circular holes provided in the substrate 2.
In FIG. 3 (B), it is made into the substantially trapezoid shape divided into 2 at the front-end | tip of the latching protrusion 3d.
In FIG. 3C, the locking step 3d is provided so as to be inclined to one side.
In either case, the locking step 3d1 is pushed into the rib locking holes 2a, 2b provided on the substrate 2 side, and locked to the peripheral edges of the rib locking holes 2a, 2b.

When assembling as the protector 1, before bending the substrate 2, the thin hinge portion 4 is positioned so that the apex 3 a of the rib 3 is in contact with the rib 3, and the locking protrusion 3 d of the rib 3 is positioned in the rib locking holes 2 a, 2 b Is inserted and locked.
At that time, as shown in FIG. 1B, the rib 3-1 is attached to the surface to be the bottom wall 5, and the side 3 c of the rib 3 </ b> A is in contact with the inner surface of the bottom wall 5. Ribs 3-2 and 3-3 are attached to the surface to be the side wall 6, and the side 3 c is in contact with the inner surface of the side wall 6.

  As shown in FIG. 2, the substrate 2 to which the ribs 3 are attached is bent with the thin hinge portion 4 as a fulcrum so as to have an L shape having a bottom wall 5 and a side wall 6. In this state, the side 3 b of the rib 3-1 on the bottom wall 5 side is in contact with the side wall 6, and the side 3 b is in contact with and supported by the inner surface of the side wall 6. The side 3b of the ribs 3-2 and 3C-2 on the side wall 6 is in contact with the bottom wall 5. Thereby, the L shape bent by the thin hinge part 4 can be supported, and it can prevent that the side wall 6 falls down to the bottom wall 5 side.

As shown in FIG. 4, the protector 1 bent into an L shape as described above is allowed to pass through the wire harness W / H composed of a group of wires, and the wire harness W / H is attached to the tongue pieces 2d and 2e for winding the tape. The tape T is wound and fixed to the protector 1.
When the protector 1 routes the wire harness W / H to the vehicle, the side wall 6 of the protector 1 is disposed on the side where the external interference material is located to protect the wire harness W / H and restrict the routing path. It is carried out.

Thus, the protector 1 can be formed by simply bending the rib 3 after attaching the rib 3 to the substrate 2, and the manufacturing cost can be greatly reduced as compared with the injection molding using a mold.
Moreover, not only can the bent shape be held by the rib 3, but also the bottom wall 5 and the side wall 6 can be prevented from being laterally displaced or twisted, and the shape retention of the protector 1 can be ensured.

As shown in the first modification of FIG. 5, the fan-shaped rib 3 may be less than 90 degrees, for example, 60 degrees, the side wall 6 may be an inclined wall, and may have a V-shaped cross section.
That is, when the amount of electric wire of the penetrating wire harness is small, if the side wall 6 is inclined, the wire harness can be held between the bottom wall 5 and the side wall 6 without fluttering.
In addition, the wire group of the wire harness W / H which penetrates the inside of the protector may be wound with tape and bound, or may be passed through a corrugated tube.

  Further, the fixing of the wire harness to the protector is not limited to the tape winding, but may be fastened by band winding as shown in the second modification of FIGS. 6 (A) and 6 (B). That is, the band locking portion 7 is provided at the longitudinal end on the side that becomes the bottom wall 5 of the substrate 2, while the band portion 8 is provided on the surface that becomes the side wall 6, and the wire harness W that penetrates into the protector 1. After the band portion 8 is wound around / H, it is inserted and locked to the band locking portion 7.

FIG. 7 shows a third modification.
In the third modified example, the substrate 2 made of a flat and flat resin plate is bent at 90 degrees by two thin hinge portions 4A and 4B and these thin hinge portions 4A and 4B spaced apart in the width direction. The bottom wall 5 and both side walls 6A and 6B are formed by bending. At both ends in the length direction of the central portion of the substrate 2 serving as the bottom wall 5, tape winding tongues 2 d and 2 e are projected.
Ribs 3 are attached along the two thin hinge portions 4A and 4B in the same manner as in the first embodiment.
In the third modified example, a bowl-shaped protector 1-A having a U-shaped cross section can be formed by bending the substrate 2, and the ribs 3 can prevent the side walls 6A and 6B from falling on the bottom wall 5. .

FIG. 8 shows a fourth modification.
In the fourth modification, three thin hinge portions 4A to 4C are provided in the substrate 2 at intervals in the width direction, the thin hinge portions 4A to 4C are bent by 90 degrees, and the bottom wall 5, both side walls 6A, 6B and the cover plate 9 are formed.
At both ends in the length direction of the central portion of the substrate 2 which becomes the bottom wall 5, tongue pieces 2 d for tape winding are projected. And the rib 3 is attached similarly to 1st embodiment along the two thin hinge parts 4A and 4B used as the boundary of the bottom wall 5 and both side wall 6A, 6B.
In addition, a locking hole 2g is provided at one end edge in the width direction of the substrate 2 serving as the leading edge of the one side wall 6A, and a locking projection 2h is provided at the other edge in the width direction of the substrate 2 serving as the leading edge of the lid plate 9. Provided.
The locking holes 2g and the locking protrusions 2h have the same shape as the locking holes and the locking protrusions shown in FIG.

  In the fourth modification, a square frame-shaped protector 1-B composed of a bottom wall 5, both side walls 6A, 6B and a cover plate 9 can be formed by bending the substrate 2, and the side walls 6A, 6B can be formed by the rib 3. Can be prevented from falling to the bottom wall 5.

9A and 9B show a fifth modification.
In the fifth modified example, the edge of the portion that becomes the cover plate 9 is bent in an uneven shape instead of a square frame shape in a straight shape.
The leading edge serving as the side wall 6A on one end side in the width direction of the substrate 2 is a bent portion 2k provided with an uneven shape in the length direction.
On the other end side in the width direction of the substrate 2 to be the cover plate 9, the thickness is made different corresponding to the uneven shape, and the thin portion 2m and the thick portion 2n are provided. In addition, the locking projection 2h is provided on the outer edge of the thin portion 2m, and the locking hole 2g is provided on the bent side of the corresponding wall 6A.

The substrate 2 is bent into a square frame shape in the same manner as the fourth modification, and the locking projections 2h of the cover plate 9 on both sides are bent at the thin-walled portion 2m to be inserted and locked into the locking holes 2g of the side wall 6A.
In this state, the cover plate 9 is bent along the bent shape of the side wall 6A.
When the bent portion is disposed in a portion where the external interference material is located when mounted on an automobile, the concave portion of the bent portion can prevent interference with the external interference material.
In addition, since it has shape retention property as a closed cross section using the cover plate 9, it is also possible to abbreviate | omit the rib attached to a thin hinge part.

10 and 11 show a protector 10 of the second embodiment.
The protector 10 of the second embodiment is formed from a flat and flat resin substrate 11 and a cover plate 12 made of a separate flat plate. A lid plate 12 is attached to a protector main body 13 formed by bending the substrate 11 into a U-shaped cross section, and the shape of the protector main body 13 is maintained by the lid plate 12.

As shown in FIG. 10, the substrate 11 can be provided with two thin hinge portions 14A and 14B continuously in the length direction at intervals in the width direction W to form the bottom wall 15 and both side walls 16A and 16B. I am doing so. The widths W1 of the side walls 16A and 16B are the same.
Locking holes 17 are provided at intervals in the length direction along both side edges in the width direction of the substrate 11 serving as the leading edges of the both side walls 16A and 16B.
Further, tongue pieces 18 for tape winding project from both ends in the length direction of the central portion in the width direction which becomes the bottom wall 15.

The width W2 of the cover plate 12 is the same as the width of the central portion that becomes the bottom wall 15 of the substrate 11, and the length of the cover plate 12 is the same as the length of the substrate 11.
Engaging protrusions 19 are provided on both outer edges of the lid plate 12 in the width direction on both side edges at the same pitch as the engaging holes 17 of the substrate 11.
The locking projection 19 has a spherical shape shown in FIG. 3A, the locking hole 17 has a round shape, and the locking projection 19 is bent and inserted into the locking hole 17 to be locked.
The locking projection 19 and the locking hole 17 may be the same as those in the first embodiment.

As shown in FIG. 11, the protector 10 is assembled in a U-shaped cross-section in which the thin-walled hinge portions 14A and 14B are bent at right angles and the side walls 16A and 16B are bent at 90 degrees across the bottom wall 15. The bowl-shaped protector body 13 is formed.
In this state, the wire harness W / H is passed through the space surrounded by the side wall 15 and the side walls 16A and 16B, and the wire harness is taped and fixed to the tape winding tongue piece 18.
Thereafter, the cover plate 12 is disposed between the upper ends of the side walls 16A and 16B, and the locking protrusions 19 of the cover plate 12 are inserted and locked into the locking holes 17 provided along the upper edges of the side walls 16A and 16B. .
In addition, when the length of the protector 10 is short, the wire harness W / H may be penetrated after attaching the cover plate 12 to the protector main body 13 formed by bending the substrate 11 and maintaining the shape.

Thus, in the protector 10 of 2nd embodiment, the bending shape of the protector main body 13 is hold | maintained by latching the cover plate 12 to the protector main body 13 formed by bending the board | substrate 11 in cross-sectional U shape. Therefore, the rib attached in the first embodiment is not required. However, similarly to the first embodiment, the rib 3 may be attached with the thin hinge portions 14A and 14B of the substrate 11 interposed therebetween, and the shape retaining property of the protector body 13 may be improved.
Moreover, in 2nd embodiment, since the cover plate 12 is attached and the protector 10 is made into the closed cross section of cross-sectional square frame shape, protection of wire harness W / H can be aimed at reliably and a tape is put on the outer periphery of a protector. There is no need to wrap and protect the wire harness.
Further, since the base plate 11 is bent to form the protector main body 13, the cover plate 12 is also engaged with and connected to both side walls of the protector main body 13, so the cover plate 12 does not have to be a three-dimensional shape provided with a peripheral wall. The protector body 13 and the cover plate 12 can be formed by press working, and the manufacturing cost can be greatly reduced.

12 and 13 show a modification of the second embodiment.
In the modification, one surface of the protector 10 having a square frame shape in cross section is bent. The bent surface is formed by the cover plate 12, and the cover plate 12 is provided with thin hinge portions 12a in the width direction W at intervals in the length direction L, and the cover plate 12 is bent by bending at the thin hinge portions 12a. It is possible to let you. Locking protrusions 19 are provided on the outer edges of the both sides in the width direction in each region partitioned by the thin-walled hinge portion 12a.

  The leading edges that form the side walls 16 </ b> A and 16 </ b> B on both sides in the width direction of the substrate 11 are provided with uneven bent portions 20, and the length of each portion of the bent portions 20 is defined by the thin hinge portions 12 a of the lid plate 12. It corresponds to each area. Further, locking holes 17 are provided at positions corresponding to the locking protrusions 19 of the cover plate 12 on both sides in the width direction of the bent portions 20.

  When the substrate 11 and the cover plate 12 have the above-described shapes, the cover plate 12 is bent at a required angle by the thin hinge portion 12a and then bent into a U-shaped cross section to form the protector main body 13, and then the cover plate 12 is locked. When the projection 19 is inserted and locked in the locking holes 17 provided in the both side walls 16A and 16B of the protector body 13, the attachment surface side of the cover plate 12 can be bent as shown in FIG.

  When the protector 10 composed of the protector main body 13 and the cover plate 12 formed by bending the substrate 11 is attached to an automobile, the cover plate 12 having a bent shape is disposed in a portion where the external interference material protrudes. Interference can be prevented.

1, 10 Protector 3 Rib 4 (4A, 4B, 4C), 14 Thin hinge part 5, 15 Bottom wall 6, 16 Side wall 9, 12 Cover plate

Claims (6)

  A flat plate-shaped resin substrate and ribs in a developed shape, the substrate having at least one thin hinge portion continuous in the length direction at the center in the width direction, and two surfaces bent by the thin hinge portion A protector for a wire harness, characterized in that the rib is attached in contact with the thin hinge portion so as to be in contact with the inner surface of the wire, and the bent state is maintained by the rib. The rib is a fan-shaped flat plate, and two straight surfaces sandwiching the apex thereof are brought into contact with two sides of the substrate bent by the thin-walled hinge portion, and the locking projection protruding from the rib is directed to the substrate. Insert and lock it into the locking hole,
The protector for a wire harness according to claim 1, wherein three ribs are attached in parallel, divided into a bottom wall side and a side wall side formed by bending the thin hinge portion.   Two thin hinge portions are provided at intervals in the width direction of the substrate, bent at the thin hinge portions and bent into a U-shaped cross section to form a bottom wall and both side walls, and the two thin hinges The protector for wire harnesses according to claim 1 or 2, wherein the ribs are respectively attached across the portions.   Three thin hinge portions are provided at intervals in the width direction of the substrate, bent at the thin hinge portions and bent into a square frame shape to form a bottom wall, both side walls, and a cover plate, and the bottom wall The protector for wire harnesses according to claim 1 or 2, wherein the ribs are respectively attached across two thin hinge portions between both side walls. An unfolded flat plate-shaped resin substrate and a separate flat plate-shaped cover plate are provided, and the substrate is provided with two thin hinge portions continuously in the length direction at intervals in the width direction. In addition, one of the locking holes or the locking protrusions is provided at intervals along the both side edges in the width direction, while the other of the locking holes or the locking protrusions is provided to protrude on both side edges of the lid plate. And
The substrate is bent at a thin hinge portion to have a U-shaped cross section having a bottom wall and both side walls,
The lid plate is fitted between both side walls, the both side walls and the lid plate are connected by engagement of the locking projections and the locking holes, and a cross-sectional square frame comprising the bottom wall, both side walls, and the lid plate The protector for wire harnesses characterized by holding the shape.   The lid plate is provided with a thin hinge portion in the width direction with an interval in the length direction, and the lid plate is bent by bending at the thin hinge portion, while both side edges in the width direction of the substrate are bent in an uneven shape. The protector for a wire harness according to claim 5, wherein the protector for a wire harness according to claim 5 is formed in a shape, and a bent portion is provided on one side of a cross-sectional square frame by locking the lid plate and both side edges of the substrate.

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