Fixing member and wire harness

Abstract

To provide a fixing member capable of easily fixing a wiring material to an attachment object, and a wire harness.SOLUTION: The fixing member 1 includes the holding portion 2 formed to be able to hold the wiring material W, the protruding portion 3 that is inserted into the hole portion 102 provided on the flat surface 101 of the attachment target 100 and having a closed bottom to position the holding portion 2 to the attachment target 100, and the suction portion 4 that the flat surface 101 to fix the holding portion 2 to the attachment target 100 in the inserted state where the protruding portion 3 is inserted into the hole portion 102. The inside of the sucking section 4 is in a vacuum state in a sucked state in which the sucking section 4 is sucked to the flat surface 101, and the sucking section 4 is sucked to the flat surface 101 using a pressure difference between the inside and the outside.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a fixing member and a wire harness. [Background technology]

[0002] Conventionally, when a wire harness is fixed to a vehicle body panel in a vehicle, for example, a band clip is used as a fixing member. The band clip is fixed by inserting a clip consisting of a centrally located support post and anchors formed on both sides of the support post into a mounting hole provided in the vehicle panel (for example, see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-115241 Summary of the Invention [Problem to be solved by the invention]

[0004] The conventional band clips described above are designed to be less likely to come off the vehicle panel by forming the clip into an anchor shape or by using through-holes as the mounting holes. However, if it is difficult to provide through-holes in the vehicle panel, the blades of the clip cannot be engaged with the vehicle panel, making it difficult to secure the band clip to the mounting object, leaving room for improvement.

[0005] An object of the present invention is to provide a fixing member and a wire harness that can easily fix a wiring material to an attachment target. [Means for solving the problem]

[0006] In order to achieve the above object, the fixing member of the present invention comprises a holding portion formed to be able to hold routing material, a protrusion portion that is inserted into a hole portion with a closed bottom provided on the flat surface of the attachment object and positions the holding portion on the attachment object, and an suction portion that, when the protrusion portion is inserted into the hole portion, adheres to the flat surface to fix the holding portion to the attachment object, and is characterized in that, when the suction portion is adhered to the flat surface, the inside becomes a vacuum state, and the suction portion adheres to the flat surface by utilizing the pressure difference between the inside and outside. [Effects of the Invention]

[0007] The fixing member and the wire harness according to the present invention have the effect of easily fixing the wiring material to the attachment object. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic diagram showing a general configuration of a fixing member and a wire harness according to an embodiment. [Figure 2] FIG. 2 is a schematic view showing a state of a fixing member before the wire harness according to the embodiment is attached to an attachment object. [Figure 3] FIG. 3 is a schematic diagram showing a state of the fixing member after the wire harness according to the embodiment is attached to the attachment object. [Figure 4] FIG. 4 is a schematic diagram showing a state in which the fixing member according to the embodiment is attached to an attachment object by suction. [Figure 5] FIG. 5 is a schematic diagram showing a general configuration of a fixing member and a wire harness according to a modified example of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the following embodiments. That is, the components in the following embodiments include those that can be easily imagined by a person skilled in the art or those that are substantially the same, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention.

[0010] [Embodiment] The fixing member 1 according to this embodiment shown in Figures 1 to 4 is fixed to an attachment target 100 of a vehicle (not shown) such as an automobile while holding a wiring material W to be routed in the vehicle, thereby routing the wiring material W to the vehicle. The attachment target 100 is, for example, a vehicle panel that constitutes the vehicle. The attachment target 100 is preferably made of aluminum die-cast or gigacast. The attachment target 100 has a flat surface 101 and a hole 102 provided in the flat surface 101.

[0011] The flat surface 101 is a surface to which the fixing member 1 is fixed, and is formed to be relatively flat compared to other surfaces formed on the attachment target 100. The flat surface 101 may be formed, for example, like a mirror surface. In this case, for example, the flat surface 101 of the attachment target 100 manufactured by aluminum die casting or giga casting is processed to have a mirror finish.

[0012] Hole 102 is not a through-hole but a bottomed hole with a closed bottom. Hole 102 has a bottom 102a and is formed to extend to bottom 102a in a direction perpendicular to flat surface 101. Hole 102 positions fixing member 1 on attachment target 100, and when fixing fixing member 1 to attachment target 100, protrusion 3 provided on fixing member 1 is inserted into hole 102.

[0013] The wiring material W is composed of, for example, a metal rod, an electric wire, a bundle of electric wires, etc. A metal rod is a conductive rod-shaped member whose exterior is covered with an insulating coating. An electric wire is a conductor (core wire) made of multiple conductive metal wires whose exterior is covered with an insulating coating. A bundle of electric wires is a bundle of these electric wires. A wire harness WH electrically connects various devices mounted on a vehicle using a wiring material W used, for example, for power supply and signal communication. The wire harness WH of this embodiment includes a wiring material W and a fixing member 1 that holds the wiring material W and is fixed to an attachment target 100. Note that the wire harness WH may also include various other components such as a grommet, an electrical connection box, and a fixture. In the illustrated example, the wire harness WH includes one wiring material W, but this is not limited thereto and may include multiple wiring materials W. The wiring material W extends along the axial direction X.

[0014] Next, the fixing member 1 will be described. The fixing member 1 includes a holding portion 2, a protrusion 3, and an adsorption portion 4. In this embodiment, the holding portion 2, the protrusion 3, and the adsorption portion 4 are integrally molded using a material such as an insulating and elastic thermoplastic plastic (for example, a thermoplastic elastomer). The protrusion 3 and the adsorption portion 4 are integrally formed to constitute a fixing portion that fixes the fixing member 1 to the attachment target 100, and are integrally connected to the holding portion 2.

[0015] First, a description will be given of the holding portion 2. The holding portion 2 is a portion formed so as to be able to hold the wiring material W. The holding portion 2 has a band portion 10 and a band locking portion 11.

[0016] The band portion 10 is used to bind the wiring material W. The band portion 10 extends in a strip shape from the band locking portion 11 and is locked to the band locking portion 11 while binding the wiring material W. The band portion 10 is configured to include a plurality of locking holes along the extension direction. The multiple locking holes are formed so that they can be locked to the band locking portion 11.

[0017] The band locking portion 11 secures the band portion 10. The band locking portion 11 has an insertion hole through which the band portion 10 is inserted and a locking protrusion provided on the inside of the insertion hole. The locking protrusion is locked into the locking hole of the band portion 10 when the band portion 10 is inserted into the insertion hole.

[0018] Next, the protrusion 3 will be described. The protrusion 3 is inserted into a hole 102 with a closed bottom 102a provided on a flat surface 101 of the attachment target 100, and positions the holding part 2 on the attachment target 100. The protrusion 3 protrudes from the suction part 4 when the fixing member 1 is holding the routing material W, and is formed to extend radially outward, perpendicular to the axial direction X. The protrusion 3 is located on the radially opposite side of the band locking part 11, with the suction part 4 in between. The tip of the protrusion 3 is formed in a hemispherical shape.

[0019] Next, the suction part 4 will be described. When the protrusion 3 is inserted into the hole 102 of the attachment target 100, the suction part 4 adheres to the flat surface 101 of the attachment target 100, thereby fixing the holding part 2 to the attachment target 100. When viewed from the direction in which the protrusion 3 extends, the suction part 4 is formed in a circular shape with the protrusion 3 at its center. When the suction part 4 adheres to the flat surface 101, the interior of the suction part 4 is in a vacuum or near-vacuum state, and the suction part 4 adheres to the flat surface 101 by utilizing the pressure difference between the interior and exterior of the suction part 4. The suction part 4 has an umbrella-shaped part 20, an internal space 21, and an suction surface 22. In the following description, the vacuum or near-vacuum state in which the suction part 4 adheres to the flat surface 101 will be referred to as a "near-vacuum state."

[0020] The umbrella-shaped portion 20 is formed so that its cross section is umbrella-shaped when viewed from a direction perpendicular to the extending direction of the protrusion 3. The umbrella-shaped portion 20 is formed to be elastically deformable, and when the fixing member 1 is attached to the attachment target 100, it elastically deforms and comes into contact with the flat surface 101.

[0021] The internal space 21 is formed by an adsorption surface 22 formed on the inside of the umbrella-shaped portion 20 and the outer peripheral surface on the base end side of the protrusion 3. The internal space 21 becomes a substantially vacuum state when the fixing member 1 is attached to the attachment object 100, elastically deforms, and comes into contact with the flat surface 101.

[0022] The suction surface 22 is formed in a circular shape centered on the protrusion 3 when viewed from the extending direction of the protrusion 3. The suction surface 22 is formed on the side of the internal space 21. When the protrusion 3 is inserted into the hole 102 of the attachment target 100, the suction surface 22 faces the suction surface 103 of the flat surface 101 and comes into contact with the suction surface 103.

[0023] Next, the suction operation of the fixing member 1 will be described with reference to FIGS. 2 to 4. An assembly worker attaches the fixing member 1, which is holding the routing material W, to the attachment target 100 (FIG. 2). In this case, the protrusion 3 of the fixing member 1 is inserted into a hole 102 formed in a flat surface 101 of the attachment target 100. When the assembly worker presses the fixing member 1 toward the attachment target 100 with the protrusion 3 inserted into the hole 102 (FIG. 3), the air remaining in the internal space 21 escapes to the outside from the outer peripheral edge of the umbrella-shaped portion 20, and the internal space 21 becomes an approximately vacuum state. As the internal space 21 becomes an approximately vacuum state, a pressure difference occurs between the internal space 21 and the external space, and the suction portion 4 uses this pressure difference to fix the fixing member 1 to the flat surface 101.

[0024] As described above, the fixing member 1 and wire harness WH according to this embodiment include the holding portion 2 formed to be able to hold the routing material W, the protrusions 3 that are inserted into the holes 102 formed in the flat surface 101 of the attachment target 100 to position the holding portion 2 on the attachment target 100, and the suction portion 4 that, in an inserted state in which the protrusions 3 are inserted into the holes 102, adheres to the flat surface 101 to fix the holding portion 2 to the attachment target 100. When the suction portion 4 is in an adsorption state in which it is adsorbed to the flat surface 101, the inside of the suction portion 4 becomes a substantially vacuum state, and it adsorbs to the flat surface 101 by utilizing the pressure difference between the inside and outside.

[0025] In this way, for example, an assembly worker inserts the protrusion 3 into the hole 102 in the flat surface 101 and pushes the fixing member 1 toward the attachment target 100, whereby the suction portion 4 is suctioned to the flat surface 101 and the wiring material W is fixed to the attachment target 100. As a result, the fixing member 1 and the wire harness WH can easily fix the wiring material W to the attachment target 100. Furthermore, even if it is difficult to provide a through hole in the attachment target 100, the fixing member 1 and the wire harness WH can easily fix the wiring material W to the attachment target 100. Furthermore, when the suction portion 4 is suctioned to the flat surface 101, the interior of the fixing member 1 and the wire harness WH becomes a substantially vacuum state, and the fixing member 1 and the wire harness WH are suctioned to the flat surface 101 by utilizing the pressure difference between the interior and exterior. Therefore, the fixing member 1 and the wire harness WH can be easily fixed to the flat surface 101 of the attachment target 100 manufactured by aluminum die casting or gigacasting, for example.

[0026] Furthermore, the flat surface 101 of the fixing member 1 and the wire harness WH, which faces and comes into contact with the suction surface 22 of the suction part 4, is formed in a mirror finish, so that the suction force of the suction part 4 can be improved.

[0027] Furthermore, the suction surface 22 of the fixing member 1 and the wire harness WH is formed in a circular shape centered on the protrusion 3 when viewed from the extending direction of the protrusion 3. As a result, when an assembly worker inserts the protrusion 3 into the hole 102 in the flat surface 101 and presses the fixing member 1 toward the attachment target 100, the pressure applied to the suction surface 22 can uniformly exhaust air remaining in the internal space 21 to the outside. As a result, the suction force of the suction portion 4 of the fixing member 1 and the wire harness WH can be improved.

[0028] In the above embodiment, the holding portion 2 is configured by the band portion 10 and the band locking portion 11, but is not limited to this. Fig. 5 is a schematic diagram showing the general configuration of a fixing member 1A and a wire harness WH according to a modified example of the embodiment.

[0029] As shown in FIG. 5, the fixing member 1A has a plate-shaped portion 30 and a tape member T instead of the band portion 10 and the band locking portion 11.

[0030] The plate-shaped portion 30 is arranged on the wiring material W along the axial direction X. When arranged on the wiring material W, the plate-shaped portion 30 is fixed to the wiring material W by a tape member T. The tape member T fixes the plate-shaped portion 30 to the wiring material W at two locations.

[0031] The tape member T is wound around the wiring material W to fix the fixing member 1A to the wiring material W. The tape member T is wound around the wiring material W together with the plate-shaped portion 30 in a state in which the plate-shaped portion 30 is arranged along the wiring material W, and fixes the fixing member 1A to the wiring material W.

[0032] In the above embodiment, the holding portion 2, the protrusions 3, and the adsorption portion 4 of the fixing member 1 are integrally molded from the same material, but this is not limited to this. For example, the fixing portion consisting of the protrusions 3 and the adsorption portion 4 and the holding portion 2 may be integrally molded from different materials by so-called two-color molding. Alternatively, the fixing portion and the holding portion 2 may be formed separately, and the holding portion 2 may be formed so as to be attachable to the fixing portion. In this case, the fixing portion and the holding portion 2 may be molded from the same material or from different materials.

[0033] In addition, in the above embodiment, the fixing member 1 is described as having the holding portion 2, the protrusion portion 3, and the adsorption portion 4 integrally molded from, for example, a thermoplastic elastomer, but this is not limited to this and may also be EPDM (ethylene propylene rubber) or the like. [Explanation of symbols]

[0034] 1 Fixing member 2 Holding part 3 Protrusion 4 Adsorption part 100 Mounting target 101 Flat surface 102 Hole

Claims

1. A holding portion formed to be able to hold the wiring material; a protrusion that is inserted into a hole having a closed bottom and that is provided on a flat surface of the attachment target, and that positions the holding part on the attachment target; an adsorption portion that adsorbs to the flat surface and fixes the holding portion to the attachment object when the protrusion is inserted into the hole, The adsorption unit is When the suction part is suctioned to the flat surface, the inside becomes a vacuum state, and the pressure difference between the inside and outside is used to suction to the flat surface. A fixing member characterized by:

2. The flat surface is At least the surface that faces and comes into contact with the suction surface of the suction part in the inserted state is formed like a mirror. The fixing member according to claim 1 .

3. The adsorption unit is When viewed from the extending direction of the protrusion, the protrusion is formed in a circular shape with the protrusion as the center. The fixing member according to claim 1 or 2.

4. The wiring material, A fixing member that is fixed to an attachment object while holding the wiring material, The fixing member is A holding portion formed to be able to hold the wiring material; a protrusion that is inserted into a hole having a closed bottom and that is provided on a flat surface of the attachment target, and that positions the holding part on the attachment target; an adsorption portion that adsorbs to the flat surface and fixes the holding portion to the attachment object when the protrusion is inserted into the hole, The adsorption unit is When the suction part is suctioned to the flat surface, the inside becomes a vacuum state, and the pressure difference between the inside and outside is used to suction to the flat surface. A wire harness characterized by:

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