Wire harness and clamp

Abstract

To provide a wire harness and a clamp that can be automatically manufactured.SOLUTION: A wire harness WH comprises a routing material 2 that is routed in a vehicle body 10, and a clamp 3 that is attached to the routing material 2 and fixes the routing material 2 to the vehicle body 10. The clamp 3 has: a sheet material 31 that is wound around and attached to the routing material 2, and has an attachment piece 311 formed to extend from the routing material 2; a holding member 32 that is formed with a slit 321 allowing insertion of the attachment piece 311, is formed with an insertion hole 322 pierced to intersect the slit 321, and allows the attachment piece 311 to be inserted into the slit 321 to hold the attachment piece; and an anchor member 33 that is attached to the vehicle body 10. The anchor member 33 has an anchor part 331 that is attached to the vehicle body 10, and an insertion part 332 that is formed integrally with the anchor part 331 and is provided to be inserted into the insertion hole 322 and penetrate the attachment piece 311.SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] 2. Description of the Related Art Conventionally, as related to a wire harness and a clamp, for example, as described in Patent Document 1, a clamp is known which is attached to a wire harness and fixed to a vehicle body, and which is attached to the wire harness by wrapping tape around it. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 11-275743 Summary of the Invention [Problem to be solved by the invention]

[0004] Such wire harnesses and clamps have room for improvement in that they are difficult to automate in manufacturing. For example, if a clamp is to be attached to a wire harness by wrapping tape around it, the tape must be wrapped around the outer periphery of the wire harness in the circumferential direction, and the operation of wrapping the tape using a manufacturing device such as a robot arm becomes complicated. In addition, when considering the strength of the attachment of the clamp to the wire harness, the tape must be wrapped multiple times, which requires more complicated operations.

[0005] SUMMARY OF THE PRESENT EMBODIMENTS Accordingly, an object of the present invention is to provide a wire harness and a clamp that can be easily manufactured by automation. [Means for solving the problem]

[0006] That is, the wire harness of the present invention comprises a wiring material to be routed to a fixed object, and a clamp attached to the wiring material and fixing the wiring material to the fixed object, the clamp having a sheet material that is wrapped around and attached to the wiring material and has an attachment piece formed to extend from the wiring material, a holding member that forms a slit through which the attachment piece is inserted and forms an insertion hole that is drilled so as to cross the slit, and holds the attachment piece by inserting it through the slit, and an anchor member that is attached to the fixed object, the anchor member being configured to have an anchor portion that is attached to the fixed object, and an insertion portion that is formed integrally with the anchor portion and is inserted into the insertion hole and provided so as to pass through the attachment piece. Effect of the Invention

[0007] According to the wire harness and clamp of the present invention, the manufacturing can be automated. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing a wire harness and a clamp according to an embodiment. [Diagram 2] FIG. 2 is an exploded perspective view showing the wire harness and the clamp according to the embodiment. [Diagram 3] FIG. 3 is a cross-sectional view of a holding member of a clamp according to an embodiment. [Figure 4] FIG. 4 is an explanatory diagram of attachment of a sheet material in the manufacturing method of the wire harness according to the embodiment. [Diagram 5] FIG. 5 is an explanatory diagram of assembling the holding member in the manufacturing method of the wire harness according to the embodiment. [Figure 6] FIG. 6 is an explanatory diagram of the assembly of the anchor member in the manufacturing method of the wire harness according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to this embodiment. In addition, the components in the following embodiments include those that are replaceable and easy for a person skilled in the art, or those that are substantially the same.

[0010] [Embodiment] This embodiment relates to a wire harness and a clamp. In the following description, among the first, second, and third directions that intersect with each other, the first direction is referred to as the "extension direction X", the second direction is referred to as the "insertion direction Y", and the third direction is referred to as the "insertion direction Z". Here, the extension direction X, the insertion direction Y, and the insertion direction Z are mutually perpendicular. The extension direction X corresponds to the extension direction of the wiring material. The insertion direction Y corresponds to the insertion direction of the mounting piece. The insertion direction Z corresponds to the insertion direction of the anchor member. The insertion direction Y and the insertion direction Z correspond to the intersecting direction that intersects with the extension direction X. In addition, each direction used in the following description represents a direction in a state in which each part is assembled with each other, unless otherwise specified. Note that the orthogonal here includes substantially orthogonal.

[0011] As shown in Figs. 1 and 2, the wire harness WH is a part or assembly that electrically connects devices and the like, and is mounted on, for example, a vehicle for use. The wire harness WH includes a wiring material 2 and a clamp 3. The wiring material 2 is a linear material that is wired to a vehicle body 10 that is a fixed object, and is configured to include, for example, an electric wire that transmits a signal or power. The wiring material 2 may be a bundle of multiple electric wires, or may be a single electric wire. The wiring material 2 may also be a bundle of multiple electric wires that is sheathed in a tube. The wiring material 2 extends in the extension direction X, and is fixed to, for example, the vehicle body 10. Note that, in Fig. 1, a panel of the vehicle body 10 is shown as the fixed object, but the fixed object may be a vehicle part or a vehicle component other than the vehicle body 10.

[0012] The clamp 3 is a component for fixing the wiring material 2 to the vehicle body 10, and is attached to the wiring material 2. The clamp 3 has a sheet material 31, a holding member 32, and an anchor member 33. The sheet material 31 is a sheet-like member that is wrapped around and attached to the wiring material 2, and has an attachment piece 311. The sheet material 31 is attached, for example, by being wrapped around the outer periphery of the wiring material 2, and both ends are overlapped to form the attachment piece 311. The attachment piece 311 extends, for example, radially from the wiring material 2. For example, a resin sheet such as a vinyl sheet is used as the sheet material 31.

[0013] The retaining member 32 is a member through which the mounting piece 311 is inserted and retained, and has, for example, a rectangular block shape. Note that in FIG. 1, for convenience of explanation, a part of the retaining member 32 is cut out and illustrated. The retaining member 32 has a slit 321 formed therein. The slit 321 is a hole through which the mounting piece 311 is inserted, and is formed, for example, penetrating from the surface facing the wiring material 2 to the surface on the opposite side. The slit 321 is a hole with an elongated cross-sectional shape that matches the cross-sectional shape of the mounting piece 311, and is formed along the insertion direction Y, with a cross-sectional shape that is longer in the extension direction X than in the insertion direction Z.

[0014] As shown in FIG. 3, the holding member 32 forms an insertion hole 322. The insertion hole 322 is a hole for inserting the insertion portion 332 of the anchor member 33. The insertion hole 322 is drilled so as to intersect with the slit 321. The insertion hole 322 intersects with the slit 321 in the holding member 32, and is formed, for example, along the insertion direction Z. At least one end of the insertion hole 322 is open so that the insertion portion 332 can be inserted, and serves as an insertion port for the insertion portion 332. In FIG. 3, the lower end of the insertion hole 322 serves as the insertion port. The insertion hole 322 has a cross-sectional shape that matches the cross-sectional shape of the insertion portion 332, and is, for example, circular in cross section.

[0015] 1, the retaining member 32 holds the mounting piece 311 so as not to slip out of the slit 321 by inserting the insertion portion 332 into the insertion hole 322 to penetrate the mounting piece 311 while the mounting piece 311 is inserted into the slit 321. In other words, by penetrating the mounting piece 311 in the retaining member 32 with the insertion portion 332, the mounting piece 311 is locked to the insertion portion 332 and does not slip out of the slit 321. For this reason, the anchor member 33 is attached to the wiring material 2 via the sheet material 31 and the retaining member 32.

[0016] As shown in FIG. 1 and FIG. 2, the anchor member 33 is a member for attaching the wiring material 2 to the vehicle body 10. The anchor member 33 has an anchor portion 331 and an insertion portion 332. The anchor portion 331 is a portion for attaching the wiring material 2 to the vehicle body 10. The anchor portion 331 is inserted into an installation hole 11 formed in the vehicle body 10 and is engaged with the vehicle body 10. For example, the anchor portion 331 has a locking portion 331A that is inserted and locked into the installation hole 11. Specifically, the locking portion 331A has a pair of flexible locking pieces that are tapered, and when inserted into the installation hole 11, the flexible locking pieces are hooked onto the edge of the installation hole 11 to fix the anchor member 33 to the vehicle body 10. Note that the anchor portion 331 may have a structure other than that described above as long as it can be engaged with the vehicle body 10.

[0017] The insertion portion 332 is a rod-like or shaft-like portion formed integrally with the anchor portion 331, and extends in the opposite direction to the mounting direction of the anchor portion 331. The insertion portion 332 is inserted into the insertion hole 322 of the holding member 32 and is provided to penetrate the mounting piece 311. The insertion portion 332 has a protrusion 332A extending in the radial direction on the outer periphery. The protrusion 332A is provided to protrude radially outward from the shaft portion 332C of the insertion portion 332, and is connected in the circumferential direction to form a ring shape. In addition, a plurality of protrusions 332A are formed at intervals along the axial direction of the insertion portion 332. As a result, the outer periphery of the insertion portion 332 has an uneven shape along the axial direction. Therefore, the insertion portion 332 has a structure that does not come off from the state where it penetrates the mounting piece 311. The tip portion 332B of the shaft portion 332C is formed in a tapered shape with a sharp tip, for example, in a cone shape. The insertion portion 332 is formed with a sharp tip portion 332B, so that the insertion portion 332 can break through the attachment piece 311 of the sheet material 31 when inserted into the insertion hole 322.

[0018] Next, a method for manufacturing the wire harness WH according to the present embodiment will be described.

[0019] The wire harness WH is manufactured by attaching a clamp 3 to a wiring material 2. The wire harness WH is manufactured, for example, by automatic control of a manufacturing device such as a robot arm. Note that the wire harness WH may also be manufactured by manual labor for part or all of the manufacturing process.

[0020] As shown in Fig. 4, the sheet material 31 is attached to the wiring material 2. The sheet material 31 is wound around the wiring material 2, and both ends are overlapped and extended along the radial direction of the wiring material 2 to form an attachment piece 311. At this time, since the sheet material 31 can be wound around the wiring material 2 and the clamp 3 can be assembled to the wiring material 2, even if the diameter of the wiring material 2 is different, the sheet material 31 can be attached and the wire harness WH can be manufactured. Note that, if the rigidity of the sheet material 31 is not sufficiently high, the attachment piece 311 may be hung down from the wiring material 2 not horizontally but downwardly.

[0021] 5, the holding member 32 is attached to the sheet material 31. That is, the holding member 32 is arranged with the opening of the slit 321 facing the attachment piece 311, and is moved toward the attachment piece 311. As a result, the attachment piece 311 is inserted into the slit 321 of the holding member 32. The holding member 32 is supported in a state in which the attachment piece 311 is inserted into the slit 321.

[0022] Then, as shown in FIG. 6, the anchor member 33 is assembled to the holding member 32. That is, the insertion portion 332 of the anchor member 33 is inserted into the insertion hole 322 of the holding member 32. At this time, the attachment piece 311 inserted into the slit 321 is arranged across the insertion hole 322. The insertion portion 332 is inserted with the pointed tip portion 332B toward the attachment piece 311. Then, the tip portion 332B breaks through the attachment piece 311, and the insertion portion 332 penetrates the attachment piece 311. The insertion portion 332 has a plurality of protrusions 332A formed on its outer periphery and has an uneven shape in the axial direction, so that the insertion portion 332 is prevented from coming off the attachment piece 311. That is, the clamp 3 can prevent the anchor member 33 from coming off the sheet material 31.

[0023] In the clamp 3, the outer diameter D2 of the protrusions 332A of the insertion portion 332 may be formed to be larger than the inner diameter D1 of the insertion hole 322. In this case, the insertion portion 332 is inserted into the insertion hole 322 while the protrusions 332A are elastically deformed. At this time, the protrusions 332A press the inner surface of the insertion hole 322 by the restoring force of the elastic deformation. Therefore, the insertion portion 332 is locked in the insertion hole 322 by the multiple protrusions 332A, and is prevented from coming out of the insertion hole 322. Then, as shown in FIG. 1, when the assembly of the anchor member 33 is completed, the manufacture of the wire harness WH is completed. Note that a component such as a protector may be attached to the wire harness WH as necessary.

[0024] In the manufacturing method of the wire harness WH, after the sheet material 31 is attached to the wiring material 2, the holding member 32 is assembled to the mounting piece 311 of the sheet material 31, and the anchor member 33 is assembled to the holding member 32. The assembly of the holding member 32 and the anchor member 33 can be performed by simply moving the holding member 32 and the anchor member 33. Therefore, the wire harness WH and the clamp 3 according to this embodiment can be easily automated in manufacturing.

[0025] As described above, the wire harness WH and clamp 3 according to this embodiment can be attached to the wiring material 2 by inserting the insertion portion 332 of the anchor member 33 into the insertion hole 322 and penetrating the attachment piece 311 while the attachment piece 311 of the sheet material 31 attached to the wiring material 2 is held by the holding member 32. Therefore, the wire harness WH and clamp 3 according to this embodiment can be easily manufactured automatically, and can be attached to wiring materials 2 of different diameters, making them highly versatile.

[0026] In addition, the wire harness WH and the clamp 3 of this embodiment can prevent the anchor member 33 from coming off the mounting piece 311 of the sheet material 31 by forming a protrusion 332A on the outer periphery of the insertion portion 332 of the anchor member 33.

[0027] In addition, the wire harness WH and clamp 3 of this embodiment can accurately prevent the anchor member 33 from falling off the sheet material 31 by forming multiple annular protrusions 332A on the outer periphery of the insertion portion 332 of the anchor member 33.

[0028] Furthermore, in the wire harness WH and clamp 3 of this embodiment, by making the outer diameter D2 of the protrusion 332A larger than the inner diameter D1 of the insertion hole 322, the anchor member 33 can be engaged with the insertion hole 322 by the protrusion 332A, and the anchor member 33 can be prevented from slipping out of the retaining member 32.

[0029] The wire harness and the clamp according to the present invention are not limited to the above-described embodiment, and various modifications are possible within the scope of the claims. The wire harness WH and the clamp 3 according to the present embodiment may be configured by appropriately combining the components of the above-described embodiment and modified examples.

[0030] For example, in the above embodiment, the wire harness WH and the clamp 3 are mounted on a vehicle, but the wire harness and the clamp according to the present invention may be used without being mounted on a vehicle. [Explanation of symbols]

[0031] 2: Routing material 3: Clamp 10: Vehicle body (fixed object) 31: Sheet material 32: Holding member 33: Anchor member 311: Mounting piece 321: Slit 322: Insertion hole 331: Anchor Section 332: Insertion section 332A: Protrusion D1: Inner diameter D2:Outer diameter WH: Wire harness

Claims

1. A wiring material to be wired to a fixed object; A clamp is attached to the wiring material and fixes the wiring material to the fixing object, The clamp is A sheet material having an attachment piece that is wound around and attached to the wiring material and extends from the wiring material; a holding member that has a slit through which the mounting piece is inserted and an insertion hole that is drilled so as to intersect with the slit, and that holds the mounting piece by inserting it through the slit; An anchor member attached to the object to be fixed, The anchor member is An anchor portion attached to the fixed object; an insertion portion formed integrally with the anchor portion and inserted into the insertion hole and penetrating the mounting piece; Wire harness.

2. The insertion portion has a protrusion extending radially on an outer periphery. The wire harness according to claim 1 .

3. The protrusion is annular and extends circumferentially around the outer periphery of the insertion portion, and is formed at intervals along the axial direction of the insertion portion. The wire harness according to claim 2.

4. The outer diameter of the protrusion is larger than the inner diameter of the insertion hole. The wire harness according to claim 3.

5. A sheet material having an attachment piece that is wound around and attached to the wiring material and extends from the wiring material; a holding member that has a slit through which the mounting piece is inserted and an insertion hole that is drilled so as to intersect with the slit, and that holds the mounting piece by inserting it through the slit; An anchor member that is attached to a fixed object, The anchor member is An anchor portion attached to the fixed object; an insertion portion formed integrally with the anchor portion and inserted into the insertion hole and penetrating the mounting piece; Clamp.

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