JP2012196039A - Harness protector structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably support a harness in a harness protector structure by preventing rotation and displacement of a harness protector only with the structure of a contact part and a clamp part provided on the bottom surface of the harness protector.SOLUTION: A second surface (16) is formed continuously to a first surface (7) with one or more corners (15) in between on a sheet metal (5). A bottom surface (10A) of a harness protector (10) has: a contact part (18) having a vertical surface (18A) standing upright and being in contact with a corner (15) to prevent rotation; and a clamp part (13) projecting so as to be fitted into a clamping hole (8) of the sheet metal (5). The contact part (18) and the clamp part (13) are arranged in line in the extension direction of the bottom surface (10A).

Description

  The present invention relates to a harness protector structure, and more particularly to a harness protector structure in which a harness is routed around an internal combustion engine.

In an internal combustion engine mounted on a vehicle, a harness connected to various devices and outfitting parts is routed around and a protector for protecting the harness is installed.
This protector needs to be held strong against vibration and is fixed at a number of points such as two or three points.

JP-A-63-176317 JP 2002-199542 A

The wire harness clamp according to Patent Document 1 is provided with a locking groove for inserting the edge of the wall body between the locking protrusion of the electric wire fixing portion and the clamp body, and a thin hinge that can be bent in the middle of the clamp body. Is provided.
In the wire harness protector and the wiring harness routing method according to Patent Document 2, the fixing portion for fixing the wire harness is extended in the insertion direction of the wire harness, and at least one of the fixing portions is extended in the branching direction of the wire harness. It is formed so that it can be bent.

  By the way, conventionally, in the wiring of the harness of the internal combustion engine, when the number of harnesses to be fixed is limited, it is difficult to install a protector, and a large space is required, and improvement has been desired.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a harness protector structure that stably supports a harness around an internal combustion engine and that saves space and facilitates assembly work.

  The present invention relates to a harness protector structure provided with a harness protector provided with a clamp portion that is fitted and fixed to a clamp hole formed on a first surface of a sheet metal while having an internal passage through which the harness is accommodated. Forms a second surface continuous with the first surface across at least one corner, and has a vertical surface upright on the bottom surface of the harness protector and abuts the corner. A contact portion that functions as a rotation stop and a clamp portion that protrudes so as to be fitted in the clamping hole of the sheet metal, and the contact portion and the clamp portion are provided side by side along the extending direction of the bottom surface portion. It is characterized by that.

  The harness protector structure of the present invention stably supports the harness around the internal combustion engine, and can simplify the assembly work in a small space.

FIG. 1 is a cross-sectional view of a clamp mechanism and a detent mechanism. (Example) FIG. 2 is a perspective view showing an attached state of the harness protector. (Example) FIG. 3 is a perspective view showing the clamp mechanism and the anti-rotation mechanism. (Example) FIG. 4 is a perspective view showing the entire harness protector structure. (Example)

  The purpose of the present invention is to stably support the harness around the internal combustion engine and simplify the assembly work in a space-saving manner, with a contact portion and a sheet metal functioning as a detent on the bottom portion of the harness protector. This is realized by arranging the clamp portions to be fitted side by side.

1 to 4 show an embodiment of the present invention.
2 and 4, reference numeral 1 denotes a power train mounted on the vehicle. The power train 1 includes an internal combustion engine 2 and a transmission 3 connected to the internal combustion engine 2.
A throttle body 4 is attached to the internal combustion engine 2 at the top, and a metal plate bracket 6 as a metal plate 5 having a closed cross section attached as a fitting part is attached.
The sheet metal bracket 6 is an engine mount bracket for mounting the internal combustion engine 2 vertically and inclined on a vehicle. By bending or welding a thick sheet metal member, a square or C-shaped cross-sectional shape is provided. It has a shape having the following structure and is attached to the wall surface of the cylinder block of the internal combustion engine 2.
As shown in FIG. 1, a clamp hole 8 is formed on the sheet metal bracket 6 with a first surface (upper surface) 7. The first surface (upper surface) 7 is arranged in the horizontal direction.

On the first surface (upper surface) 7 of the sheet metal bracket 6, as shown in FIGS. 1 and 4, a harness protector 10 for protecting a harness 9 routed around the internal combustion engine 2 below the throttle body 4. Is supported.
The harness 9 is branched at its distal end and connected to each part of the internal combustion engine 2 and dovetail parts, and the proximal end side is routed to and supported by the vehicle body of the vehicle.
As shown in FIG. 4, for example, the harness protector 10 has an L-shaped cross section with a bottom surface (long) 10A, one side surface (short side) 10B, and another side surface (short side) 10C as an overall shape. In addition, a lid 12 having an L-shaped internal passage 11 through which the harness 9 is passed is opened upward, and a lid 12 that partially closes each of the L-shaped long side and the short side is integrated. In addition, it is attached to the upper part of the sheet metal bracket 6 by utilizing the long side portion of the L-shape.
Specifically, the harness protector 10 includes an internal passage 11 that is disposed so as to cross the sheet metal bracket 6 and passes through the harness 9 that is routed along the crankshaft direction of the internal combustion engine 2. And a clamp portion 13 that protrudes downward from the bottom surface portion 10A at a predetermined height.
The clamp hole 8 of the sheet metal bracket 6 and the clamp portion 13 of the harness protector 10 constitute a clamp mechanism 14 that fixes the harness protector 10 to the sheet metal bracket 6.

As shown in FIG. 1, the sheet metal bracket 6 is formed with a second surface 16 that is continuous with the first surface 7 with at least one corner 15 interposed therebetween. The corner 15 projects upward from the first surface 7 at a predetermined height. The second surface 16 is arranged in the vertical direction.
The bottom plate 10A of the harness protector 10 has an upright vertical surface 18A through a stepped portion 17 and abuts against the corner 15 of the sheet metal bracket 6 and functions as a detent, and the sheet metal bracket. The clamp portion 13 is provided so as to protrude downward so as to be fitted into and fixed to the clamp holes 8 of 6.
As shown in FIGS. 1 and 3, the contact portion 18 and the clamp portion 13 are provided side by side along the extending direction (horizontal direction) of the bottom surface portion 10 </ b> A.
The abutting portion 18 may be formed as a step portion having a predetermined height and having an upright surface, but in this embodiment, as shown in FIG. 1, the bottom surface of the harness protector 10 is shallow so that the internal passage 11 becomes shallow. It is formed by pushing up the portion 10A at a predetermined height.
The corner portion 15 and the contact portion 18 constitute a detent mechanism 19.

The push-up portion forming the contact portion 18 of the bottom surface portion 10A is uniformly formed over the entire width along the width direction of the bowl shape. The space 20 generated thereby accommodates a corner 15 that is a protruding portion of the end surface extending along the extending direction (horizontal direction) of the first surface 7 of the sheet metal bracket 6. The area of contact by the contact portion 18 can be enlarged at the same time as the corner portion 15 is housed in a compact size. Further, in the internal passage 11, the space portion S of the corner portion 15 is formed to have a smaller passage cross-sectional area than other portions, so that the harness 9 is prevented from shaking and the harness 9 is prevented from being displaced. .
As described above, the harness protector 10 can be prevented from rotating and prevented from slipping and the harness 9 can be stably supported only by the structure of the contact portion 18 and the clamp portion 13 provided on the bottom surface portion 10A of the harness protector 10. Can do. That is, the contact portion 18 that functions as a detent provided on the bottom surface portion 10 </ b> A of the harness protector 10 and the clamp portion 13 that functions as a detent stop cooperate to connect the harness protector 10 to the corner 15 of the sheet metal bracket 6. It can hold | maintain so that it may straddle two surfaces and can be supported stably. Further, since only the structure of the bottom surface portion 10A of the harness protector 10 is changed, the space is saved. Furthermore, since the clamp portion 13 is simply fitted into the clamp hole 8 so as to be placed on the first surface 7 (upper surface) of the sheet metal bracket 6, the assembling work can be simplified.
Further, the sheet metal 5 is a sheet metal bracket 6 having a closed cross section attached as a fitting part to the cylinder block of the internal combustion engine 2, and the harness protector 10 is placed on and supported by the first surface 7 (upper surface) of the sheet metal bracket 6. Therefore, the weight of the harness 9 can be supported by the first surface 7 (upper surface) of the sheet metal bracket 6 and can be stably supported for a long time even if vibration is applied.

Further, as shown in FIG. 1, the harness protector 10 is provided with a vertical wall portion 21 that is continuous with the contact portion 18 and protrudes downward from the bottom surface portion 10 </ b> A.
The vertical wall portion 21 extends downward from the vertical wall surface portion of the bottom surface portion 10 </ b> A and protrudes from the lower reference surface of the bottom surface portion 10 </ b> A, thereby forming the second surface 16 of the sheet metal bracket 6. A wide area for facing and abutting is secured. Due to the contact of the vertical wall portion 21 with the second surface 16, the clamping mechanism 14 alone positions the degree of freedom in the direction of rotation along the first surface 7 of the sheet metal bracket 6, and stably Can be fixed.
Thereby, the area of the contact surface of the harness protector 10 to the sheet metal bracket 6 can be increased and stabilized to support the harness protector 10, the occupied space can be kept small, and the weight increase can be reduced.

Furthermore, the clamp part 13 protrudes from the reference surface which is relatively lower than the protruded bottom surface part 10 </ b> A of the bottom surface part 10 </ b> A of the harness protector 10, thereby causing a dent generated on the upper surface of the sheet metal bracket 6. It is provided using space. The opposite side (L-shaped short side) across the clamped portion 13 with respect to the raised bottom surface is also shaped so that the bottom surface portion 10A is pushed up.
With such a structure, the bottom portion of the clamp portion 13 is relatively low, so that the depth of the bowl shape that is the internal passage 11 that accommodates the harness 9 is increased, and the cross-sectional shape of the bundle of the harness 9 that is accommodated Even if is changed, play can be absorbed and its fit can be improved.

  The harness protector structure according to the present invention can be applied to various vehicles.

DESCRIPTION OF SYMBOLS 1 Powertrain 2 Internal combustion engine 3 Transmission 4 Throttle body 5 Sheet metal 6 Sheet metal bracket 7 Sheet metal bracket first surface 8 Clamping hole 9 Harness 10 Harness protector 10A Bottom surface 10B One side surface 10C Other side surface 11 Internal passage 12 Cover DESCRIPTION OF SYMBOLS 13 Clamp part 14 Clamp mechanism 15 Corner | angular part 16 2nd surface of a sheet metal bracket 17 Step part 18 Contact part 18A Vertical surface of a contact part 19 Detent mechanism 20 Space 21 Vertical wall part

Claims (3)

  In a harness protector structure provided with a harness protector provided with an internal passage through which a harness is passed and having a clamp portion fitted and fixed to a clamp hole formed in a first surface of the sheet metal, the sheet metal includes the first A second surface that is continuous with at least one corner portion is formed on the bottom surface of the harness protector, and the bottom surface portion of the harness protector has a vertical surface that stands upright and abuts against the corner portion as a detent. A functioning contact portion and a clamp portion protruding so as to be fitted in the clamping hole of the sheet metal are provided, and the contact portion and the clamp portion are provided side by side along the extending direction of the bottom surface portion. Harness protector structure.   The harness protector structure according to claim 1, wherein the harness protector is provided with a vertical wall portion that is continuous with a vertical surface of the contact portion and protrudes from the bottom surface portion.   The sheet metal is a sheet metal bracket having a closed cross section attached as a fitting part to a cylinder block of an internal combustion engine, and the harness protector is placed on and supported by the upper surface of the sheet metal bracket. 2. The harness protector structure according to 2.

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