JP2013153560A - Harness protector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a harness protector having a new structure that enables stable fixture even when a vehicle side attachment part is located at a position separated from a protector body.SOLUTION: A rectangular parallelepiped-shaped extension part 24 protruding from a protector body 12 is integrally formed with the protector body 12 made of a synthetic resin for housing a wire harness 15. Further, while an engagement piece 36, engaging with an attachment part 52 of a vehicle body for serving as a vehicle fixing part, is integrally formed at a protruding tip 32 of the extension part 24, multiple lightening holes 42 are formed at the extension part 24, thereby forming beam parts 48 between the lightening holes 42.

Description

  The present invention relates to a harness protector that accommodates a wire harness and is attached to a vehicle body.

  2. Description of the Related Art Conventionally, in an automobile, a wire harness is routed at various points of a vehicle body in order to supply power from a battery to each electrical component and transmit an electrical signal from a sensor or the like. These wire harnesses are housed in a harness protector to protect them from contact with other members and to regulate the routing shape, and the harness protector is fixed to the vehicle body, so that it is routed to the vehicle body. There is.

  By the way, the harness protector is attached to an attachment portion such as a bracket on the vehicle body side on the side surface of the protector body made of synthetic resin that accommodates the wire harness, as described in, for example, Japanese Patent Laid-Open No. 2008-5581 (Patent Document 1). The vehicle body fixing portion is provided.

  However, in recent years, with the space saving of the vehicle structure, the position where the harness protector can be disposed may be extremely limited. In such a case, the protector body cannot be brought close to the bracket or the like that is the mounting part on the vehicle body side, and the body fixing part provided on the side surface of the protector body can be fixed without reaching the mounting part on the vehicle body side. There was no case.

JP 2008-5581 A

  The present invention has been made in the background of the above-mentioned circumstances, and the problem to be solved is that even when the mounting portion on the vehicle body side is at a position separated from the protector body, stable fixing can be performed. It is to provide a harness protector having a new structure.

  A first aspect of the present invention is a harness protector in which a body fixing portion for fixing the protector body to a mounting portion of a vehicle body is formed on a protector body made of a synthetic resin that accommodates a wire harness. A rectangular parallelepiped extension projecting from the protector main body is integrally formed, and an engaging piece as the vehicle body fixing portion that engages with the mounting portion of the vehicle body is integrally formed at the projecting tip of the extension. At the same time, the extension portion is formed with a plurality of lightening holes so that a beam portion is formed between the lightening holes.

  In the harness protector having the structure according to the present invention, an extension portion that protrudes from the protector body is provided, and an engagement piece that is fixed to a mounting portion of a vehicle body such as a bracket is integrally formed at the protruding tip portion of the extension portion. Thereby, the space in which the protector main body can be disposed is limited, and even when the protector main body is separated from the bracket or the like, the engagement piece can be fixed to the bracket or the like via the extension portion. Then, the extension piece is formed in a rectangular parallelepiped shape so that the engagement piece is formed with a predetermined length dimension so that the engagement piece can be bent and deformed, thereby connecting the protector body and the engagement piece. Strength can be secured. Further, a plurality of lightening holes are provided in the extension portion having a rectangular parallelepiped shape, and a beam portion is formed between the lightening holes. Thereby, the strength of the extension can be further improved by appropriately determining the extension direction of the beam in consideration of the load direction exerted on the extension. As a result, the strength of the extension can be advantageously ensured, and stable fixing can be performed even when the bracket or the like is separated from the protector body.

  In addition, by forming a hollow hole in the extension part and forming a beam part between the hollow holes, the strength of the extension part can be ensured while reducing the resin material of the extension part having a rectangular parallelepiped shape. As a result, the possibility of deformation due to resin sink marks or the like at the time of molding in the extension portion can be reduced and the dimensional accuracy of the extension portion can be ensured, so that a more stable fixing strength can be obtained.

  The extension direction of the extension part from the protector body is appropriately set according to the positional relationship between the protector body and the mounting part of the vehicle body, and the extension part protrudes perpendicularly to the extension direction of the protector body. Alternatively, it may be projected in the same direction. In addition, the shape of the plurality of hollow holes formed in the extension part and the beam part formed between them is an arbitrary shape in consideration of the load direction exerted on the extension part in the fixed state to the vehicle body. Is set. Therefore, the beam portion is not limited to a linear shape, and may be a curved shape or the like. Furthermore, the through hole may or may not penetrate the extension. Further, the number of extension portions, the formation location in the protector body, and the like are appropriately set in consideration of the required fixing strength to the vehicle body. Therefore, a plurality of extensions and engagement pieces may be formed on the protector body, and the extensions may be formed at the end of the protector body in the extending direction or at the intermediate portion in the extending direction. You may do it.

  According to a second aspect of the present invention, in the first aspect, the lightening hole is formed through the extension.

  According to this aspect, the material for forming the extension portion can be reduced, and the manufacturing cost can be reduced and the weight of the harness protector can be reduced. In this embodiment, it is not always necessary that all of the plurality of lightening holes pass through the extension part, and a part of the plurality of lightening holes may be formed through the extension part.

  According to a third aspect of the present invention, in the first or second aspect, the vehicle body fixing portion is formed at one end in the extending direction of the protector body, and the other end. The extension is formed at the edge.

  According to this aspect, since the vehicle body fixing portions are formed at both ends of the protector main body, the protector main body is fixed to the vehicle body at both ends in the extending direction, and the protector main body against vibrations and the like during vehicle travel. Can be stably fixed to the vehicle body. In particular, since the extension is formed at the end edge of the protector body in the extending direction, the end edge of the protector body can be fixed to the vehicle body, and a more stable fixed state can be obtained. . The vehicle body fixing portion formed at one end portion in the extending direction of the protector body may be a vehicle body fixing portion having a structure according to the present invention including an extension portion and an engagement piece. A conventionally known protrusion or the like that is widely used for a clamp (clip) or the like attached to the vehicle body and that is inserted into and engaged with an engagement hole penetrating the bracket may be used. Further, the vehicle body fixing portion formed at one end portion in the extending direction of the protector body may be formed at the end portion opposite to the extension portion in the protector body, and is not necessarily formed at the end edge portion. There is no need to be.

  According to a fourth aspect of the present invention, in the one described in any one of the first to third aspects, a plurality of the beam portions are orthogonal to the extending direction of the extending portion and the extending direction. And a lattice shape that intersects with each other.

  According to this aspect, it is possible to ensure effective strength against the load in the two directions orthogonal to the extending direction of the extension portion and the direction orthogonal to the extending direction. Further, since the shape of the beam portion is simple, the extension portion can be easily formed. Furthermore, by forming the beam portion in a lattice shape, the hollow holes are arranged in a uniform manner, so that it is possible to more effectively suppress the occurrence of deformation due to resin sink marks when the extension portion is molded.

  According to a fifth aspect of the present invention, in the one described in any one of the first to third aspects, a plurality of the beam portions have a radial shape extending from the center of the extension portion. .

  According to this aspect, the beam portion extending in the oblique direction with respect to the extending direction of the extension portion is formed. Therefore, effective strength can be secured even with respect to a load in an oblique direction with respect to the extending direction of the extension portion.

  In the present invention, a rectangular parallelepiped extension projecting from the protector body is integrally formed, an engagement piece is formed at the projecting tip of the extension, and a plurality of lightening holes are provided in the extension. A beam portion was formed between the holes. Thereby, even when the attachment part of the vehicle body is separated from the protector body, the engagement piece can reach the attachment part by the extension part, and the protector body can be fixed to the vehicle body. And since the extension part is made into the rectangular parallelepiped shape, the connection intensity | strength with an engagement piece and a protector main body can be ensured effectively. Furthermore, by forming the beam portion in the extension portion, deformation of the extension portion due to resin sink marks at the time of molding is reduced, and the extension direction of the beam portion depends on the load direction to the extension portion. By setting, it is possible to ensure an effective strength against loads from various directions exerted on the extension portion. As a result, the strength of the extension can be more effectively ensured, and the protector main body can be stably fixed even when the protector main body is separated from the mounting portion of the vehicle body.

The perspective view of the harness protector as 1st embodiment of this invention. The side view of the harness protector shown in FIG. The perspective view of the extension part of the harness protector shown in FIG. It is sectional drawing of the extension part shown in FIG. 3, Comprising: IV-IV sectional drawing in FIG. FIG. 4 is a top view of the extension shown in FIG. 3. The bottom view of the extension part shown in FIG. The side view of the vehicle body fixing | fixed part of the harness protector shown in FIG. The top view of the extension part of the harness protector as 2nd embodiment of this invention. The bottom view of the extension part shown in FIG. Sectional drawing equivalent to FIG. 4 of the extension part of the harness protector as 3rd embodiment of this invention.

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

  First, the harness protector 10 as 1st embodiment of this invention is shown in FIG. 1 and FIG. The harness protector 10 has a substantially rectangular tube shape in which a lid member 14 is assembled to the protector main body 12, and accommodates and protects the wire harness 15 therein. In the following description, the vertical direction refers to the vertical direction in FIG.

  The harness protector 10 of the present embodiment has a longitudinal shape extending in a substantially straight line (in the left-right direction in FIG. 2) while being bent in a mountain shape at an intermediate portion. A harness intake 16 is formed at one end in the extending direction of the harness protector 10. Further, a first harness outlet 18 a is formed at the end near the harness inlet 16, and a second harness outlet 18 b is formed at the end opposite to the harness inlet 16. . The first harness outlet 18 a and the second harness outlet 18 b are communicated with the harness inlet 16 through the inside of the harness protector 10. Thereby, a part of the wire harness 15 taken into the harness protector 10 from the harness inlet 16 is taken out to the outside through the first harness outlet 18a, and the remaining wire harness is taken to the outside from the second harness outlet 18b. It comes to be taken out. The second harness outlet 18 b is opened upward at the end of the harness protector 10.

  The protector body 12 is an integrally molded product made of synthetic resin. The protector body 12 is formed with a side opening 20 that extends perpendicular to the extending direction (left and right direction in FIG. 2) over the entire length, and extends with a substantially U-shaped cross-sectional shape. Yes. Then, the lid member 14 is fixed to the protector body 12 via the lock portions 22 provided at a plurality of positions in the longitudinal direction (left and right direction in FIG. 2) of the protector body 12, whereby the side opening 20 is covered. The cover is covered with the member 14.

  An extension 24 is integrally formed at one end edge of the protector body 12 in the extending direction (left and right direction in FIG. 2). As shown in FIGS. 3-6, the extension part 24 is made into the substantially rectangular parallelepiped block shape, and it is the extension direction (left-right direction in FIG. 5) of the protector main body 12 from the side surface 26 of the protector main body 12. As shown in FIG. It protrudes perpendicularly. The extension 24 is formed at an end edge of the protector main body 12 in the extending direction, and the outer surface 28 located on the outer side (left side in FIG. 5) of the protector main body 12 in the extension 24. And in the protector main body 12, the side end surface 30 located on the opposite side to the harness inlet 16 is located on the same plane.

  As shown also in FIG. 4, an insertion opening 34 that opens downward is formed at the projecting tip 32 of the extension 24 from the protector body 12. Inside the insertion opening 34, there is a vehicle body fixing portion. The engaging piece 36 is integrally formed. The engagement piece 36 is a conventionally known so-called resin lance, has a plate shape extending with a predetermined length in the vertical direction (vertical direction in FIG. 4), and the lower end portion of the extension portion 24 at the insertion port 34. On the other hand, the upper end portion is connected to an inner surface 35 located on the base end side, and the upper end portion is a free end located away from the inner surface 35. Thereby, the engagement piece 36 can be bent and deformed toward the inner surface 35 side. The engagement piece 36 is formed with a claw portion 38 that protrudes toward the outside of the extension portion 24. Further, slit-like guide grooves 39 and 39 (only one of them is shown in FIGS. 3 and 4) are formed on both sides of the engagement piece 36 in the insertion port 34 and open downward. . As is known in the art, such an engagement piece 36 is inserted into the insertion port 34 while a bracket 40 (see FIG. 4) as a mounting portion of the vehicle body is guided by the guide grooves 39, 39, so that the engagement piece 36 36 is pressed by the bracket 40 to bend and deform toward the inner surface 35 side, and when the engagement hole 41 penetrating the bracket 40 reaches the claw portion 38 of the engagement piece 36, the engagement piece 36 is restored. When the claw portion 38 enters the engagement hole 41 by force, it is engaged with the bracket 40.

  As shown in FIGS. 5 and 6, the extension 24 is formed with a plurality of lightening holes 42. The lightening hole 42 is a bottomed recess that opens on each of the upper surface 44 and the lower surface 46 of the extension 24, and is formed without penetrating the extension 24. In the present embodiment, the lightening holes 42 are substantially squares having the same size, and a plurality of lightening holes 42 are formed so as to be evenly aligned on each of the upper surface 44 and the lower surface 46. These thinning holes 42 are formed at predetermined intervals in two directions, ie, the extending direction of the extension portion 24 (vertical direction in FIG. 5) and the direction orthogonal to the extending direction (horizontal direction in FIG. 5). In the present embodiment, a total of twelve hollow holes 42 in three rows in the extending direction of the extension portion 24 and four rows in the direction orthogonal to the extending direction are formed in alignment.

  Accordingly, a plurality of beam portions 48 are formed between the plurality of lightening holes 42 on each of the upper surface 44 and the lower surface 46 of the extension portion 24. In the present embodiment, a beam portion 48a extending in the extending direction of the extension portion 24 (vertical direction in FIG. 5) and a beam portion 48b extending perpendicular to the extension direction of the extension portion 24 are crossed at right angles. Thus, the plurality of beam portions 48 are formed in a lattice shape.

  On the other hand, in the protector body 12, an engaging protrusion 50 as a vehicle body fixing portion is integrally formed at the end opposite to the extension portion 24. As shown in FIG. 7, the engagement protrusion 50 is a conventionally known one that is inserted into and engaged with an engagement hole 54 that penetrates a bracket 52 as a mounting portion of the vehicle body. The engaging protrusion 50 is formed with a protrusion 58 that protrudes from the lower surface 56 of the protector body 12 and a plurality of claw portions 60 and 60 that extend outward from the protruding tip of the protrusion 58. When the engagement protrusion 50 is inserted into the engagement hole 54 of the bracket 52, the claw portions 60, 60 are bent toward the protrusion 58 and pass through the engagement hole 54 and also through the engagement hole 54. The nail | claw parts 60 and 60 which were restored | restored to a natural state, and are latched by the bracket 52, The protector main body 12 is fixed to the bracket 52. FIG.

  In the harness protector 10 having such a structure, the wire harness 15 (see FIG. 1) is inserted into the harness intake port 16 of the protector body 12 with the lid portion 14 removed from the protector body 12, and the side The wire harness 15 is inserted into the protector body 12 from the opening 20. And the cover member 14 is assembled | attached to the protector main body 12 via the lock part 22 in the state which took out the wire harness 15 from the 1st harness outlet 18a and the 2nd harness outlet 18b. Thereby, the wire harness 15 is accommodated in the protector body 12. Then, with the wire harness 15 housed, the engagement piece 36 of the extension 24 is engaged with the bracket 40 and the engagement protrusion 50 is fixed to the bracket 52 as shown in FIG. Thus, the protector body 12 is fixed to the vehicle body.

  According to the harness protector 10 having the structure according to the present embodiment, the extension portion 24 protruding from the protector body 12 is integrally formed, and the engagement piece 36 is provided at the protruding tip portion 32 of the extension portion 24. Thereby, even when the bracket 40 is separated from the protector body 12, the engaging piece 36 can be engaged with the bracket 40 by the extension portion 24.

  In particular, the extension portion 24 is formed in a rectangular parallelepiped shape having a predetermined dimension in the vertical direction in response to the engagement piece 36 having a predetermined dimension in the vertical direction (the vertical direction in FIG. 4). Thereby, the connection strength of the engagement piece 36 and the protector main body 12 can be effectively ensured, and the fixing strength of the harness protector 10 to the bracket 40 can be effectively ensured. Further, by forming the plurality of lightening holes 42 in the extension portion 24, an increase in the resin material can be suppressed even if the extension portion 24 is formed in a rectangular parallelepiped shape.

  Further, a plurality of beam portions 48 are formed between the lightening holes 42. Thereby, the intensity | strength of the extension part 24 can be ensured, reducing a resin material. Further, by reducing the sink marks of the resin at the time of forming the extension portion 24 and improving the dimensional accuracy, more stable fixing can be performed. In particular, in the present embodiment, the plurality of beam portions 48 are formed in a lattice shape by the beam portions 48a extending in the extending direction of the extension portion 24 and the beam portions 48b extending perpendicular to the extending direction. Thereby, when a load is applied to the extension portion 24 in the extending direction (vertical direction in FIG. 5), the beam portion 48a can secure an effective strength and is orthogonal to the extending direction ( When a load is applied in the left-right direction in FIG. 5, the beam portion 48b can ensure effective strength. As a result, it is possible to ensure effective strength against any load in the two orthogonal directions to the extension portion 24 and to stably maintain the fixed state to the bracket 40.

  Moreover, in this embodiment, the engagement piece 36 and the engagement protrusion 50 as a vehicle body fixing | fixed part are formed in the both ends of the protector main body 12 which has a longitudinal shape. Thereby, the harness protector 10 can be fixed to the vehicle body at both ends in the longitudinal direction, and can be more stably fixed. In particular, the extension 24 is formed at the end edge of the protector main body 12, and the harness protector 10 is fixed to the bracket 40 at the end edge in the longitudinal direction, so that the harness protector 10 can be fixed more stably. Can be maintained.

  It should be noted that various shapes can be appropriately adopted for the hollow hole and the beam portion formed in the extension portion in the present invention in consideration of the load direction and the like exerted on the extension portion. 8 and 9 show an extension 72 of the harness protector 70 according to the second embodiment of the present invention. In the following description, parts having the same structure as in the first embodiment are denoted by the same reference numerals as those in the first embodiment in the drawing, and the description thereof is omitted as appropriate.

  The harness protector 70 has the same structure as the harness protector 10 in the first embodiment except for the extension 72. A plurality of lightening holes 74 are formed in the extension portion 72 of the present embodiment. Each of the lightening holes 74 has a right triangle shape, and a set of a pair of lightening holes 74 and 74 whose oblique sides are opposed to each other is arranged in 2 × 2 rows. As a result, the extension portion 72 has a beam portion 76a extending in the extension direction of the extension portion 72 (vertical direction in FIG. 8) between the plurality of lightening holes 74, and is orthogonal to the extension direction of the extension portion 72. Thus, a beam portion 76b extending and two beam portions 76c and 76d extending in two oblique directions with respect to the extending direction of the extension portion 72 are formed. The beam portions 76a to 76d are crossed at the center portion O of the extension portion 72, so that the plurality of beam portions 76a to 76d are formed with a radial shape extending from the center portion O of the extension portion 72. . In addition, each hollow hole 74 in this embodiment is a bottomed recess that opens to each of the upper surface 44 and the lower surface 46 of the extension portion 72 without penetrating the extension portion 72, as in the first embodiment. A plurality of lightening holes 74 and beam portions 76a to 76d therebetween are formed on the upper surface 44 and the lower surface 46 of the extension portion 72, respectively.

  According to the harness protector 70 having such a structure, the beam portions 76a and 76b can ensure effective strength against the extension direction of the extension portion 72 and a load in two directions orthogonal thereto. At the same time, the beams 76c and 76d can secure an effective strength against a load in an oblique direction with respect to the extending direction of the extension 72.

  Next, the principal part of the harness protector 80 as 3rd embodiment of this invention is shown in FIG. The harness protector 80 has substantially the same structure as the harness protector 10 of the first embodiment. The extension portion 82 of the harness protector 80 has a plurality of lightening holes 84 having a rectangular shape substantially the same as the extension portion 24 in the first embodiment in the vertical direction of the extension portion 82 (vertical direction in FIG. 10). It is formed through. As in the present embodiment, it is possible to form the through hole through the extension, and in this way, further reduction of the resin material and weight reduction can be achieved. In addition, it is also possible to form a mixed hole that penetrates the extension part and a hollow hole that does not penetrate.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited by the specific description. For example, the protruding direction of the extension portion from the protector body is appropriately set in consideration of the positional relationship between the protector body and the bracket, and is necessarily limited to the direction perpendicular to the extending direction of the protector body. Instead, it may extend in the same direction as the extension direction of the protector body, or may extend in an oblique direction with respect to the extension direction of the protector body.

  Further, the specific shape of the hollow hole formed in the extension part and the beam part formed therebetween is appropriately set in consideration of the direction of the load applied to the extension part, for example, the beam part. May be formed in a curved shape.

  Moreover, the shape of the protector main body in the said embodiment is an illustration to the last, and various shapes are employable as the shape of a protector main body according to the wiring shape of a wire harness. Furthermore, the protector body is not limited to a rectangular cylindrical shape, and may be a cylindrical shape or the like. In addition, the number of the extension portions and the engagement pieces and the formation position in the protector body are not limited. For example, the extension portions and the engagement pieces may be formed at a plurality of locations on the protector body. You may form an extension part and an engagement piece in the intermediate part of the extension direction of a main body.

10, 70, 80: Harness protector, 12: Protector body, 15: Wire harness, 24, 72, 82: Extension part, 32: Projection tip part, 36: Engagement piece (vehicle body fixing part), 40, 52: Bracket (Mounting portion of the vehicle body), 42, 74, 84: Mouth hole, 48a-b, 76a-d: Beam portion, 50: Engaging projection (vehicle body fixing portion)

Claims (5)

In a harness protector in which a body fixing portion for fixing the protector body to a mounting portion of a vehicle body is formed on a protector body made of a synthetic resin that houses a wire harness.
The protector body is integrally formed with a rectangular parallelepiped extension projecting from the protector body, and an engagement piece as the vehicle body fixing portion that engages with the mounting portion of the vehicle body at the projecting tip of the extension. Is integrally formed,
A harness protector according to claim 1, wherein a plurality of lightening holes are formed in the extension part, and a beam part is formed between the lightening holes. The harness protector according to claim 1, wherein the lightening hole is formed through the extension portion. The harness protector according to claim 1 or 2, wherein the vehicle body fixing portion is formed at one end portion in the extending direction of the protector body, and the extension portion is formed at the other end edge portion. The harness protector according to any one of claims 1 to 3, wherein the plurality of beam portions have a lattice shape that intersects in an extending direction of the extension portion and a direction orthogonal to the extending direction. The harness protector according to any one of claims 1 to 3, wherein the plurality of beam portions have a radial shape extending from a center of the extension portion.

Images