JP2007295721A - Wiring harness protector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To cut off a portion with a clip easily from a side where a protector cover is capped, and to easily remove a protector body with a wiring harness from a vehicle body and the like. <P>SOLUTION: In a wiring harness protector, the clip 15 is formed integrally on the outer surface of the bottom wall 11 of the protector body 10, and the protector cover 20 is capped on the top of the protector body. An annular cutter 33 cuts out the bottom wall of the protector unit so as to surround a portion where the clip is formed by being pressed against the bottom wall of the protector unit, and is provided in the protector cover. The cutter 33 is mounted to the top end of the shaft 31. A spacer 35 is inserted between the head 32 of the shaft protruding from a through-hole of the protector cover and the top surface of the protector cover. By removing the spacer, the cutter can be pressed into the bottom wall via a shaft. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a wire harness protector for securing a wire harness to a vehicle body panel or the like while protecting the wire harness.

  Generally, when wiring a wire harness in a vehicle, etc., it is necessary to efficiently route while protecting the wire harness in a limited space, so for a wire harness with a clip that can be locked to the body panel Protectors are often used.

  As an example of a protector for a wire harness with a clip of this kind, there is known one shown in FIG. 5 similar to that disclosed in Patent Document 1.

  The protector for a wire harness shown in FIG. 5 is made of a synthetic resin that forms a housing space 13 for the wire harness, and the body panel P that is an attachment target member is locked to the outer surface of the bottom wall 11 of the protector body 10 having a U-shaped cross section. A clip 15 for retaining and locking in the hole Pa is integrally formed, and a protector cover 20 that can be freely opened and closed is covered on the upper surface of the protector body 10. The protector body 10 includes a bottom wall 11 and both side walls 12 and 12 standing on both sides of the bottom wall 11. A protector cover 20 is suspended from the top wall 21 and both sides of the top wall 21. It comprises an edge wall 22 covering the outside of both side walls 12 of the main body 10.

In order to fix the wire harness to the vehicle body using the protector, first, the wire harness is accommodated in the accommodating space 13 in the protector main body 10 and the protector cover 20 is covered. Next, in this state, the clip 15 is retained and locked in the locking hole Pa of the vehicle body panel P. By carrying out like this, a wire harness can be attached to the vehicle body panel P via a protector. In addition, the wire harness can be protected from being damaged by direct contact with peripheral devices and panels after installation.
JP 2000-134760 A

  By the way, since the clip 15 is hidden behind the protector main body 10 once the clip 15 is engaged with the vehicle body panel P, the operator cannot touch the clip 15 later and easily. There is a problem that the wire harness cannot be removed from the body panel P together with the protector body 10.

  In consideration of the above circumstances, the present invention is a wire harness protector in which a portion with a clip can be easily separated from a side covered with a protector cover, and the protector body can be easily removed from the vehicle body together with the wire harness. The purpose is to provide.

  According to the first aspect of the present invention, a clip for fixing to a member to be attached is integrally formed on the outer surface of the bottom wall of the resin protector body that forms a housing space for the wire harness, and the upper surface of the protector body can be freely opened and closed. In the protector for a wire harness covered with the protector cover, the bottom wall of the protector main body is surrounded by the inside of the protector cover so as to surround the portion where the clip is formed by being pushed into the bottom wall of the protector main body. An annular cutter is provided to cut out the.

  The invention according to claim 2 is the protector for wire harness according to claim 1, wherein the cutter is attached to the tip of the shaft, and the head of the shaft is protruded outward from a through hole formed in the protector cover. When the shaft is prevented from being pushed in between the head of the shaft and the protector cover, and the bottom wall of the protector body is cut out with a cutter attached to the tip of the shaft by pushing the shaft. In order to enable the shaft to be pushed in, a spacer removed from the mounting position is sandwiched.

  Invention of Claim 3 is a protector for wire harnesses of Claim 2, Comprising: While providing the said spacer so that a slide is possible along the upper surface of the said protector cover, the said spacer is made to slide by sliding this spacer to the said spacer. A U-shaped notch that fits on the outer periphery of the shaft is provided.

  The invention of claim 4 is the protector for a wire harness according to claim 3, wherein the upper surface of the spacer is formed in parallel with the lower surface of the spacer, and the shaft is fitted into the U-shaped notch. A holding surface for holding the head portion of the shaft in a state where the shaft head is held and an inclined surface for guiding the head portion of the shaft to ride on the holding surface are provided.

  Invention of Claim 5 is a protector for wire harnesses of any one of Claims 2-4, Comprising: The said cutter is formed in the cup shape which has a cutting blade at the front-end | tip of a cylindrical wall, The cup shape The tip of the shaft is connected to the center of the top wall of the cutter.

  Invention of Claim 6 is a protector for wire harnesses of any one of Claims 1-5, Comprising: When the said clip inserts in the latching hole of the panel as an attachment object member, it is a retaining member. It has an elastic locking piece to be stopped.

  According to the first aspect of the present invention, since the annular cutter is provided inside the protector cover, the bottom wall of the protector main body is formed so as to surround the portion where the clip is formed only by pushing the cutter from the cover side. Can be cut out. Therefore, even when the operator cannot touch the clip hidden behind the protector body, the protector body can be easily removed from the vehicle body together with the wire harness.

  According to the second aspect of the present invention, the bottom wall portion with the clip can be separated simply by removing the spacer and pushing the head of the shaft protruding above the protector cover from above. Therefore, the protector body can be easily removed from the vehicle body and the like together with the wire harness by simply removing the spacer and hitting the head of the shaft with a hammer or the like. Further, in the state where the spacer is mounted, the shaft cannot be pushed in, so there is no risk of erroneous operation.

  According to the invention of claim 3, the spacer can be fitted to the outer periphery of the shaft or removed from the outer periphery of the shaft only by sliding the spacer laterally along the upper surface of the protector cover. Easy to do.

  According to the invention of claim 4, since the upper surface of the spacer is provided with the holding surface that holds the head of the shaft and the inclined surface that guides the riding of the head of the shaft onto the holding surface. By using this, the spacer can be easily mounted at a fixed position. In addition, once installed in a fixed position, the holding surface securely holds the head of the shaft, so that an erroneous pushing operation can be prevented.

  According to the invention of claim 5, the cutter is formed in a cup shape having a cutting edge at the tip of the cylindrical wall, and the tip of the shaft is connected to the center of the top wall of the cup-shaped cutter. The pushing force to be applied can be transmitted evenly to the cutting edge at the tip through the top wall and the cylindrical wall of the cutter. Therefore, the bottom wall portion with the clip can be separated cleanly.

  According to the sixth aspect of the present invention, since the clip has the elastic locking piece that is prevented from coming off by being inserted into the locking hole of the panel, the protector can be easily attached to the vehicle body simply by being inserted into the locking hole. Etc. can be attached.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 is a cross-sectional view showing a mounting state of a protector for a wire harness according to an embodiment to a vehicle body panel, FIG. 2 is an exploded perspective view of the protector, a perspective view of an assembled state of the protector, and FIG. 4 is an explanation of the operation of the protector. It is sectional drawing for, and is a figure which shows the state which cut | disconnected the bottom wall part with a clip.

  This protector is provided with a clip separating member 30 and a spacer 35 in addition to the protector body 10, the clip 15, and the protector cover 20 shown in the conventional example of FIG.

  The protector main body 10 is made of a synthetic resin and has a U-shaped cross section, which forms a housing space 13 for the wire harness, and includes a bottom wall 11 and both side walls 12, 12 standing on both sides of the bottom wall 11. The protector cover 20 includes a top wall 21 that closes the upper surface opening of the protector body 10, and edge walls 22 that are suspended from both sides of the top wall 21 and cover the outside of the side walls 12 of the protector body 10. A through hole 24 is provided at a corresponding position.

  The clip 15 protrudes from the outer surface of the bottom wall 11 of the protector body 10 and is retained and locked in the locking hole Pa of the vehicle body panel P that is an attachment target member. The clip 15 of this example is a protector. A support column 16 projecting outward from the molding hole 11a of the bottom wall 11 of the main body 10, and a wedge-shaped elastic locking piece supported by the tip end of the support column 16 and being able to bend and deform with the tip support point as a fulcrum. 17. The elastic locking piece 17 is elastically constricted when passing through the locking hole Pa of the panel P, returns to the original position after passing through the locking hole Pa, and engages the outer locking step 17a. Lock to the periphery of the stop hole Pa. As a result, the clip 15 is locked in the locking hole Pa.

  The clip separating member 30 includes a shaft 31 having a head 32 having a size capable of passing through the through hole 24 of the protector cover 20 at the upper end and an annular cutter 33 connected to the lower end of the shaft 31. The shaft 31 is disposed on the inner surface side of the protector cover 20 in a state where the head 32 protrudes outside from the through hole 24 of the protector cover 20.

  The cutter 33 disposed at the lower end (front end) of the shaft 31 is pushed into the bottom wall 11 of the protector body 10 via the shaft 31 so that the portion of the protector body 10 is surrounded so as to surround the portion where the clip 15 is formed. The bottom wall 11 is cut out, is formed in a cup shape having a cutting edge 33a continuous with the tip of the cylindrical wall 33b, and the tip of the shaft 31 is connected to the center of the top wall 33c of the cup-shaped cutter 33. .

  The cutter 33 is supported by the shaft 31 with the cutting edge 33a facing the inner surface of the bottom wall 11 of the protector body 10. In order to sharpen the sharpness, it is preferable that at least the cutting edge 33a is made of metal or ceramic.

  The spacer 35 is installed between the head 32 of the shaft 31 and the upper surface of the top wall 21 of the protector cover 20 to prevent the shaft 31 from being pushed in the worn state. When the bottom wall 11 of the protector body 10 is cut out by the cutter 33 at the tip of the shaft 31, the shaft 31 is removed from the mounting position in order to allow the shaft 31 to be pushed.

  The spacer 35 is provided so as to be slidable along the upper surface of the top wall 21 of the protector cover 20, and has a U-shaped notch 36 that fits on the outer periphery of the shaft 31 by sliding itself. .

  Further, a holding surface 37 formed in parallel to the lower surface of the spacer 35 and an inclined surface 38 for guiding the head 32 of the shaft 31 to ride on the holding surface 37 are provided on the upper surface of the spacer 35. . The inclined surface 38 is inclined downward toward the entrance of the U-shaped cutout 36.

  The holding surface 37 is a surface that holds the head portion 32 of the shaft 31 in a state where the U-shaped notch 36 is fitted to the outer periphery of the shaft 31, and is provided at a height of a dimension t from the lower surface. By holding the shaft 31 with the head 32 lifted by this dimension t, the cutter 33 is pressed onto the bottom wall 11 of the protector body 10 in the use state of the protector as shown in FIG. Without being positioned.

  Next, the operation will be described.

  When using this protector, first, a wire harness (not shown) is accommodated in the accommodating space 13 in the protector body 10, and the protector cover 20 is placed thereon.

  At that time, the clip separating member 30 is set on the inner surface side of the protector cover 20 while causing the head portion 32 of the shaft 31 to protrude above the through hole 24. Further, the spacer 35 is inserted between the head portion 32 of the shaft 31 and the protector cover 20 so that the shaft 31 cannot be pushed in.

  Then, when the protector cover 20 is put on and the protector cover 20 and the protector main body 10 are integrally fixed by tape winding or the like as necessary, the clip 15 on the back surface of the bottom wall 11 of the protector main body 10 is locked to the vehicle body panel P. Insert it into the hole Pa and lock it. Thereby, a wire harness can be attached to the vehicle body panel P via a protector.

  FIG. 1 shows this state. In this state, the cutter 33 faces the inner surface of the bottom wall 11 of the protector body 10.

  Next, for example, when it becomes necessary to remove the wire harness from the vehicle body panel together with the protector due to a request for recycling accompanying the vehicle body disassembly, first, the spacer 35 is removed, and the shaft 31 is pushed in.

  Next, when the head 32 of the shaft 31 protruding on the protector cover 20 is hit with a hammer or the like, the cutter 33 is pushed into the bottom wall 11 via the shaft 31 to form the clip 15 as shown in FIG. The bottom wall 11 of the protector body 10 is cut out so as to surround the part. Therefore, even when the operator cannot touch the clip 15 hidden behind the protector main body 10, the protector main body 10 together with the wire harness can be easily detached from the vehicle body panel P only by an operation from the protector cover 20 side. . In addition, in the state in which the spacer 35 is mounted, the shaft 31 cannot be pushed in, so there is no risk of erroneous operation.

  In the case of this protector, the spacer 35 can be fitted to the outer periphery of the shaft 31 or removed from the outer periphery of the shaft 31 simply by sliding the spacer 35 sideways along the upper surface of the protector cover 20. 35 can be easily attached and detached.

  In addition, the spacer 35 is provided with a holding surface 37 for holding the head portion 32 of the shaft 31 and an inclined surface 38 for guiding the head 32 of the shaft 31 to ride on the holding surface 37. By using the surface 38, the spacer 35 can be easily mounted at a fixed position. In addition, once mounted in a fixed position, the holding surface 37 reliably holds the head portion 32 of the shaft 31, so that an erroneous pushing operation can be reliably prevented.

  In the protector of the present embodiment, the cutter 33 is formed in a cup shape having a cutting edge 33a at the tip of the cylindrical wall 33b, and the tip of the shaft 31 is connected to the center of the top wall 33c of the cup-shaped cutter 33. Therefore, the pushing force applied to the shaft 31 can be evenly transmitted to the cutting edge 33a at the tip via the top wall 33c and the cylindrical wall 33b of the cutter 33 without deviation. Therefore, the bottom wall 11 portion with the clip 15 can be separated cleanly.

It is sectional drawing which shows the use condition of the protector for wire harnesses of embodiment of this invention. It is a disassembled perspective view of the protector. It is a perspective view of the assembly state of the protector. It is sectional drawing for the effect | action description of the protector, and is a figure which shows the state which clip-separated. It is sectional drawing of the protector for wire harnesses with the conventional clip.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Protector body 11 Bottom wall 13 Housing space 15 Clip 17 Elastic locking piece 20 Protector cover 24 Through-hole 31 Shaft 32 Head 33 Cutter 33a Cutting blade 33b Cylindrical wall 33c Top wall 35 Spacer 36 U-shaped notch 37 Holding surface 38 Inclined surface P Body panel (member to be mounted)
Pa Locking hole

Claims (6)

A wire in which a clip for fixing to a mounting target member is integrally formed on the outer surface of the bottom wall of a resin protector body that forms a housing space for the wire harness, and a protector cover that can be opened and closed is covered on the top surface of the protector body In the protector for harness,
An annular cutter for cutting out the bottom wall of the protector body so as to surround the portion where the clip is formed is provided inside the protector cover by being pushed into the bottom wall of the protector body. Wire harness protector. It is a protector for wire harnesses of Claim 1, Comprising:
The cutter is attached to the tip of the shaft, and the head of the shaft is protruded outward from a through hole formed in the protector cover, and the shaft is attached between the head of the shaft and the protector cover. In order to prevent the push-in, and when the bottom wall of the protector body is cut out with a cutter attached to the tip of the shaft by pushing in the shaft, a spacer to be removed from the mounting position is inserted to enable the push-in of the shaft. A protector for wire harness. It is a protector for wire harnesses of Claim 2, Comprising:
A wire harness characterized in that the spacer is provided so as to be slidable along the upper surface of the protector cover, and the spacer is provided with a U-shaped notch that fits on the outer periphery of the shaft by sliding the spacer. Protector. It is a protector for wire harnesses of Claim 3, Comprising:
A holding surface that is formed on the upper surface of the spacer in parallel with the lower surface of the spacer and that holds the head of the shaft in a state where the shaft is fitted in the U-shaped notch, and a shaft to the holding surface A protector for a wire harness, characterized in that an inclined surface is provided for guiding the head of the vehicle to ride on. It is a protector for wire harnesses of any one of Claims 2-4,
A protector for a wire harness, wherein the cutter is formed in a cup shape having a cutting edge at the tip of a cylindrical wall, and the tip of the shaft is connected to the center of the top wall of the cup-shaped cutter. It is a protector for wire harnesses of any one of Claims 1-5,
A protector for a wire harness, characterized in that the clip has an elastic locking piece that is prevented from coming off by being inserted into a locking hole of a panel as an attachment target member.

Images