JP5704446B2 - Harness protector structure - Google Patents

Description

  The present invention relates to a harness protector structure, and more particularly to a harness routing technique for routing a vehicle mounted with an internal combustion engine, which can be stably held so as not to pinch the harness when the lid is closed. The present invention relates to a harness protector structure.

  Tape winding that bundles harnesses used for wiring of various electrical components of vehicles equipped with an internal combustion engine may be unwound when there is play. . On the other hand, if the wiring space with sufficient height such as bundling the harness by tape winding to make a harness bundle with a round cross section cannot be secured, the harness is accommodated in the internal passage space of the harness protector that suppresses the height space, It is routed. Generally, a harness protector for thinning a plurality of harnesses accommodates individual loose harnesses without tape winding.

  One conventional harness protector structure is shown in FIG. In FIG. 10, 101 is an individual single harness, 102 is a harness bundle in which the single harness 101 is bundled, and 103 is a harness protector. The harness protector 103 includes a protector body 105 having an internal passage space 104 that accommodates the harness bundle 102. The protector main body 105 is formed in a bowl shape by the bottom wall portion 106 and the two side wall portions 107 and 108, and is a lid 110 that can be rotated by a hinge 109 at the upper end of one side wall portion 107 to open and close the internal passage space 104. have. The lid 110 includes a locking projection 112 that is locked to a locking step 111 provided on the other side wall 108. The harness protector 103 extends and accommodates the harness bundle 102 in the internal passage space 104 by locking the locking protrusion 112 of the lid 110 to the locking step portion 111 and closing the internal passage space 104.

  Such a harness protector structure has a structure in which the harness is accommodated in the internal passage space of the harness protector so as to be movable in the extending direction by a slider (Japanese Patent Laid-Open No. 2000-69642), or a notch-like shape at the upper end of the side wall. When the lid is closed, the projection is formed so as to be accommodated in the accommodation portion. When the lid is closed, the projection moves from the outside of the upper end surface of the side wall to the internal passage space side. There is a structure (JP-A-1997-137822) that forms a peripheral surface and prevents the harness from being sandwiched between the upper end surface of the side wall and the lid.

JP 2000-69642 A JP 1997-137822 A

However, the harness protector structure of Patent Document 2 has a notch-shaped housing part and a protruding part that pushes the harness to prevent the harness from being pinched separately from the structure for wiring while suppressing the height of the harness. Further, when the lid is closed, the peripheral surface of the protruding portion protrudes into the internal passage space and pushes the harness.
For this reason, the harness protector structure of Patent Document 2 needs to add another structure not related to the structure for holding the harness to the harness protector, and the cross-sectional area of the internal passage space is increased by the protruding portion protruding into the internal passage space. In addition to being reduced, the harness is pushed outward by the protruding portion, and thus cannot be stably supported.

  It is an object of the present invention to provide a harness protector structure that can be accommodated in an internal passage space without damaging the harness, to provide a fixing structure that can stably support the harness, and to assemble in a space-saving manner Is a secondary purpose of providing a simple fixing structure.

The present invention provides a harness protector structure that has a lid that can be opened and closed by rotation by a hinge, and that accommodates a bundle of harnesses in an internal passage space that is closed by the lid, and the harness protector is attached to the bottom wall of the harness protector. A protruding portion extending in a direction intersecting with the extending direction of the bundle and protruding from the surrounding bottom wall portion is provided , and a space is formed below the protruding portion .

  The harness protector structure according to the present invention has a shape in which the raised portion provided on the bottom wall portion of the harness protector extends in the crossing direction. Therefore, the harness protector structure is bundled when entering the internal passage space using the shape of the raised portion. An operator can hold a single harness that has not been provided between the raised portion and the finger without difficulty, and the individual harness is not sandwiched when the lid is closed.

FIG. 1 is a cross-sectional view of the long side portion of the harness protector in the harness bundle extending direction. (Example) FIG. 2 is a cross-sectional view in the direction intersecting the harness bundle extending direction of the long side portion of the harness protector. (Example) FIG. 3 is an enlarged cross-sectional view of the hinge portion of the long side portion of the harness protector. (Example) FIG. 4 is a cross-sectional view of the harness protector in the harness bundle extending direction. (Example) FIG. 5 is a cross-sectional view of the harness bundle housed in the line A portion of FIG. (Example) 6 is a cross-sectional view of the harness bundle housed in the line B portion of FIG. (Example) FIG. 7 is a cross-sectional view of the harness bundle housed in the portion C of FIG. (Example) FIG. 8 is a perspective view of the harness protector with the lid opened. (Example) FIG. 9 is a perspective view of the harness protector supported by the engine mount. (Example) FIG. 10 is a cross-sectional view of the harness protector in the direction intersecting with the harness bundle extending direction. (Conventional example)

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

1 to 9 show an embodiment of the present invention. In FIG. 9, 1 is an internal combustion engine, 2 is a cylinder block, 3 is a throttle body, and 4 is a mount bracket. A harness bundle 6 (see FIGS. 5 to 7) in which individual harnesses 5 arranged around the internal combustion engine 1 are bundled, and the distal end of the harness bundle 6 is connected to each part of the internal combustion engine 1 and the fitting parts. Is routed and supported by the vehicle body. The outfitting component of the internal combustion engine 1 is the mount bracket 4 for mounting the internal combustion engine 1 vertically on the vehicle. The mount bracket 4 is attached to the wall surface of the shilling block 2 of the internal combustion engine 1 and elastically supports the internal combustion engine 1 on the vehicle body via the engine mount 7. On the other hand, a throttle body 3 of the internal combustion engine 1 is disposed at a position slightly above the mount bracket 4.
The mount bracket 4 is a sheet metal bracket using a thick sheet metal, and has a U-shaped cross-sectional shape or a shape having a B-shaped closed cross-sectional structure by bending or welding. The mounting bracket 4 shown in FIG. 9 is generally provided with a bracket body 8 having a U-shaped cross-sectional shape by bending, and welding the open portion of the bracket body 8 to add a sheet metal cover body 9. It has a shape having a letter-shaped closed cross-sectional structure. The upper surface of the mount bracket 4 is lowered by a step a little lower than the projecting portions 12 and 13 at the upper ends of the side walls 10 and 11 by the two thick sheet metals rising from the bottom wall of the bracket body 8. It is part 14. The mount bracket 4 forms an extremely thin and flat space S1 between the side walls 10 and 11 on the lowering portion 14 due to the height difference between the protruding portions 12 and 13 and the lowering portion 14 at both ends.

A harness protector 15 is disposed on the mount bracket 4 so as to cross the upper surface in the width direction. The harness bundle 6 passing through the harness protector 15 is routed along the crankshaft direction of the internal combustion engine 1. The range in which the harness bundle 6 is not protected by the harness protector 15 is basically circular in cross section and is covered with a protective tube.
As shown in FIG. 8, the harness protector 15 is provided with a bowl-shaped protector body 18 that has an L shape in plan view and has L-shaped internal passage spaces 16 and 17 through which the harness bundle 6 passes. . The bowl-shaped protector body 18 has a bottom wall portion 19 and two side wall portions 20 and 21 rising from both sides of the bottom wall portion 19 and is open upward. The protector body 18 is integrally formed with L-shaped short side portion 22 and long side portion 23 with openable and closable lids 24 and 25 that partially close the openings along the internal passage spaces 16 and 17. Prepare. The portion where the L-shaped short side portion 22 and the long side portion 23 are joined is an open portion 26 where the upper portion that is not closed by the lids 24 and 25 is opened. The harness protector 15 is attached to and supported by the upper portion of the mount bracket 4 using the L-shaped long side portion 23 of the protector body 18.
The lids 24 and 25 are integrally provided in the vicinity of the upper end of one side wall portion 20 constituting the bowl-shaped internal passage space 16 and 17 by hinges 27 and 28 formed by thin portions. The lid 24 of the short side portion 22 is pivotally connected to the upper end of one side wall portion 20 by a hinge 27 connected to one side in the width direction so that the internal passage space 16 can be opened and closed, and is locked to the other side in the width direction. A protrusion 29 is provided. The other side wall portion 21 of the short side portion 22 is provided with a locking step portion 30 to which a locking projection 29 is locked when the lid 24 is closed. The lid 25 of the long side portion 23 is pivotally connected to the upper end of one side wall portion 20 by a hinge 28 connected to one side in the width direction so that the internal passage space 17 can be opened and closed, and is locked to the other side in the width direction. A protrusion 31 is provided. The other side wall portion 22 of the long side portion 23 is provided with a locking step portion 32 to which the locking projection 31 is locked when the lid 25 is closed.
The harness protector 15 rotates the lids 24 and 25 in the closing direction by the hinges 27 and 28, and locks the locking projections 29 and 31 to the locking step portions 30 and 32, respectively. By closing 17, the harness bundle 6 is extended and accommodated in the internal passage spaces 16 and 17.
The harness bundle 6 of the portion (A in FIG. 4) protected by the short side portion 22 of the harness protector 15 is tape-wrapped with a tape 33 as shown in FIG. The cross section is circular. Further, as shown in FIG. 6, the harness bundle 6 of the portion (B in FIG. 4) protected by the open portion 26 of the harness protector 15 and a part of the long side portion 23 has a slight margin as shown in FIG. It has a flat shape that touches in the state of holding. Furthermore, as shown in FIG. 7, the harness bundle 6 of the portion (C in FIG. 4) protected by the long side portion 23 of the harness protector 15 has a flat shape in which the individual single harnesses 5 are in close contact with each other. ing.

The harness protector 15 has two surfaces (one side wall 10 and a cover) sandwiching one corner among the four surfaces (the bottom wall of the bracket body 8, the side walls 10 and 11 and the cover body 9) constituting the closed cross section of the mount bracket 4. Arranged so as to face the body 9). As shown in FIG. 1, on the end side of the long side portion 23 separated from the open portion 26 of the harness protector 15, the bottom wall portion 19 of the protector body 18 extends in a direction intersecting with the extending direction of the harness bundle 6. A raised portion 34 that protrudes from the surrounding bottom wall portion 19 is provided.
In this way, the harness protector 15 has a shape in which the raised portion 34 provided on the bottom wall portion 19 of the long side portion 23 extends in a direction intersecting the harness bundle 6, and thus the shape of the raised portion 34 is changed. The single harness 5 that is not bundled when being inserted into the internal passage space 17 can be used with the raised portion 34 and can be pressed by the finger without any difficulty, and each individual when the lid 25 is closed. The single harness 5 is not sandwiched.

The harness protector 15 is, as shown in FIGS. 2 and 3, an upper end surface 35 of one side wall portion 20 of the two side wall portions 20 and 21 forming the internal passage space 17 of the long side portion 23, The width a on the side of the hinge 28 of the upper end surface 35 that disappears due to the closure of the lid 25 is provided as a dimension that is less than 12% of the diameter R of the single harness 5 of the harness bundle 6.
Here, the point that the width a beside the hinge 28 is less than 12% of the diameter R of the single harness 5 will be described with reference to FIG.
As shown by an arrow in FIG. 3, a boundary angle θ (an angle formed between the upper end surface 35 of the side wall 20 and the inner surface 36 of the lid 25 with respect to the pushing direction and the sandwiching direction of the single harness 5 having the radius r by the lid 25. ) At 45 degrees,
E, a point intersecting the upper end surface 35 and the inner surface 36 on the hinge 28 side.
A point where a line segment y passing through the center D of the single harness 5 and perpendicular to the upper end surface 35 intersects the upper end surface 35 is F,
G is a point where a line segment y passing through the center D of the single harness 5 and perpendicular to the upper end surface 35 intersects the inner surface 36.
A point where a line segment z passing through the center D of the single harness 5 and perpendicular to the inner surface 36 intersects the inner surface 36 is H,
And
The triangle EFG is an isosceles triangle in which the length of the two sides EF and FG sandwiching the right angle EFG is a, and the length of the side EG facing the right angle EFG is a * √2. The triangle GHD is an isosceles triangle in which the length of the two sides DH and HG sandwiching the right angle GHD is r and the length of the side DG facing the right angle GHD is r * √2.
Therefore, the width a on the side of the hinge 28 of the upper end surface 35 that disappears by closing the lid 25 is
・ A = r + r * √2
If √2 ≒ 1.4, then
A = r (1 + 1.4) = 2.4r
Since the diameter R of the single harness 5 is 2r,
・ A ≒ 1.2R
Therefore, the width a on the side of the hinge 28 of the harness protector 15 is set to a dimension that is less than 12% of the diameter R of the single harness 5, and the inclined surface is inclined toward the internal passage space 17 at the upper end of the side wall portion 20 provided with the hinge 28. 37 is formed.
Thus, the harness protector 15, by eliminating the upper end surface 35 of the side wall portion 20 which is a single harness 5 which have become loose is placed substantially single in the upper end surface 35 of the hinge 28 near the side wall portion 20 The state in which the harness 5 is sandwiched between the lids 25 can be eliminated. Further, the single harness 5 located on the upper end surface 35 of the side wall portion 20 near the hinge 28 can be easily moved to the internal passage space 17 side by the inclined surface 37.
As shown in FIG. 2, the harness protector 15 has a width of the upper end surface 38 of the other side wall portion 21 that is less than 12% of the diameter R of the single harness 5, and an internal passage at the upper end of the other side wall portion 21. By forming the inclined surface 39 inclined to the space 17 side, the inclined surface 39 facilitates the internal passage space 17 side so that the single harness 5 positioned on the upper end surface 38 is not sandwiched between the lids 25 when the lid 25 is closed. Can be moved to.

The harness protector 15 is disposed so as to cross the upper surface of the mount bracket 4 in the width direction. The harness protector 15 is disposed and provided so as to face two surfaces (one side wall 10 and the cover body 9) sandwiching one corner of the mount bracket 4. As shown in FIG. 1, on the end side of the long side portion 23 separated from the open portion 26 of the harness protector 15, the bottom wall portion 19 of the protector body 18 extends in a direction intersecting with the extending direction of the harness bundle 6. The raised portion 34 protruding from the surrounding bottom wall portion 19 is provided.
The raised portion 34 functions as an abutting portion that abuts the mount bracket 4, has a predetermined height, and may be formed as a stepped portion having an upright surface. ) 34 pushes up the bottom wall portion 19 so that the internal passage space 17 of the long side portion 23 of the harness protector 15 becomes shallow, and extends downward from the vertical wall surface portion 40 of the step portion formed by the pushing up. A vertical wall 41 is provided. The vertical wall 41 protrudes downward from the reference bottom wall portion 19 which is a relatively lower one of the bottom wall portions 19, thereby ensuring a wide area facing and contacting the side wall 11 of the mount bracket 4. Yes. With this contact, the harness protector 15 can position and stably fix the degree of freedom in the direction of rotation along the side wall 11 of the mount bracket 4 with only the clamp portion 44 described later.
The raised shape of the bottom wall portion 19, which also serves as the raised portion 34, is formed uniformly over the entire width along the width direction of the bowl shape forming the internal passage space 17. The space S <b> 2 below the bottom wall portion 19, that is, below the raised portion 34 generated thereby accommodates the protruding portion 13 of the end surface extending along the extending direction of the one side wall 11 of the mount bracket 4. The harness protector 15 can be compactly accommodated by accommodating the protruding portion 13 in the space S2, and at the same time, the area abutted by the raised portion (contact portion) 34 can be increased.

As shown in FIGS. 1 and 4, the harness protector 15 has an inverted trapezoidal shape in a side view across the range of the open portion 26 that is open without the lid 25 on the bottom wall portion 19 of the long side portion 23. A bulging portion 42 is provided by bulging downward. The bulging portion 42 is provided by using an extremely thin flat space S1 on the lowered portion 14 of the mounting bracket 4 described above.
On the bottom surface (flat surface portion) of the bulging portion 42, a clamp portion 44 that fits into a hole 43 formed in the cover portion 9 of the mount bracket 4 is provided so as to protrude. By fitting the clamp portion 44 into the hole 43 formed in the cover portion 9, it is positioned that the degree of freedom that the ridge portion 34 alone slides in the extending direction of the cover portion 9 of the mount bracket 4 remains. It can be fixed stably.
The raised portion 34 that functions as a detent provided on the bottom wall portion 19 of the harness protector 15 and the clamp portion 44 that functions as a detent stop cooperate to place the harness protector 15 on two surfaces that sandwich the corner of the mount bracket 4. It can be held in a straddling manner and supported stably. Only the structure of the bottom wall portion 19 of the harness protector 15 saves space. Since the clamp part 44 of the harness protector 15 is simply fitted into the hole 43 so as to be placed on the upper surface of the cover part 9 of the mount bracket 4, the assembling work is simple.

As shown in FIG. 4, the bulging portion 42 provided with the clamp portion 44 is relatively low in the bottom wall portion 19 of the harness protector 15 as compared with the raised bottom wall portion 19 (the raised portion 34). By projecting downward from the bottom wall portion 19 of the reference surface, the recess space S1 generated on the upper surface of the cover portion 9 of the mount bracket 4 is used. Further, the bottom wall portion 19 (protruded portion 34) that is pushed up is also shaped so that the bottom wall portion 19 is pushed up on the opposite side (L-shaped short side portion 22 side) across the clamp portion 44 .
As a result, the bottom surface of the bulging portion 42 provided with the clamp portion 44 is relatively lowered, so that the depth of the bowl shape that is the internal passage space 17 of the long side portion 23 that accommodates the harness 5 is increased. Even if the cross-sectional shape of the bundle of harnesses 5 to be changed is changed, play can be absorbed and the fit can be improved.

  The present invention provides a harness protector structure that can be accommodated in an internal passage space without damaging the harness, and is not limited to a protector that accommodates a harness, and has a lid that can be opened and closed by a hinge. It may be applied to a protector that accommodates the tube, and may have a simple U-shaped cross-sectional shape, or may have a hollow tube that has a modified outer shape that is partially recessed.

DESCRIPTION OF SYMBOLS 1 Internal combustion engine 4 Mount bracket 5 Harness 6 Harness bundle 15 Harness protector 16 Internal passage space 17 Internal passage space 19 Bottom wall portion 20 Side wall portion 21 Side wall portion 22 Short side portion 23 Long side portion 24 Lid 25 Lid 26 Open portion 27 Hinge 28 Hinge 29 Locking projection 30 Locking step portion 31 Locking protrusion 32 Locking step portion 34 Raised portion 35 Upper end surface 36 Inner surface 37 Inclined surface

Claims (3)

A harness protector structure that has a lid that can be opened and closed by rotation by a hinge and that extends and accommodates a harness bundle in an internal passage space closed by the lid, and the harness bundle extends to the bottom wall portion of the harness protector A harness protector structure characterized in that a protruding portion extending in a direction crossing the direction and protruding from a surrounding bottom wall portion is provided , and a space is formed below the protruding portion . The harness protector structure according to claim 1, wherein a vertical wall extending downward from a vertical wall surface portion formed in the raised portion is provided, and the vertical wall protrudes downward from the bottom wall portion. The width of the hinge side of the upper end surface of the side wall portion that forms the internal passage space of the harness protector and disappears due to the closure of the lid is a dimension that is less than 12% of the diameter of the single harness of the harness bundle. The harness protector structure according to claim 1 , wherein the harness protector structure is provided.

Images