JP2013135502A - Wiring tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for increasing the degree of freedom when installing a wiring tool in a vehicle.SOLUTION: The wiring tool for holding a wire in a required shape includes a base having: a base side shape maintaining part reinforced by an uneven shape forming a wiring space in which the wire is laid; and a base side expansion and contraction part formed continuously between a plurality of base side shape maintaining parts in bellows-shape so that it can expands and contracts. The wiring tool further includes a coating body which covers the wiring space formed by the base, and having a coating body side expansion and contraction part in bellows-shape that expands and contracts to fit the shape of the base side expansion and contraction part at a position corresponding to the base side expansion and contraction part.

Description

  The present invention relates to a wiring tool for holding an electric wire in a required shape.

  A wire harness mounted on a vehicle such as an automobile may include a resin wiring tool in order to route an electric wire along a required route (for example, Patent Document 1). Specifically, the wire harness disclosed in Patent Document 1 includes a wiring tool composed of two plate-like resin members that are fixed by hot pressing in a state where electric bundle wires are sandwiched. One resin member is a base composed of a flat plate-like base portion and a rib standing from the base portion. The other resin member is formed with a through-hole into which the rib of the substrate is inserted, and is a flat cover that is fixed to the base of the substrate in a state of being superimposed on the substrate.

JP 2010-27242 A

  In order to maintain the shape of the conventional plate-shaped wiring tool disclosed in Patent Document 1 or the like, a thermosetting resin is generally used. For this reason, since the conventional wiring tool has rigidity after hardening, it is generally difficult to deform it freely. Therefore, it has been difficult to install the conventional wiring tool so as to be along a non-planar space such as a space including a portion that bends three-dimensionally in the vehicle.

  For example, when installing a wiring tool in two spaces having different lengths, the configuration of the conventional wiring tool cannot be deformed in accordance with each size. For this reason, it was necessary to prepare separate wiring tools as appropriate for each of the installation spaces.

  As described above, the conventional wiring tool has a problem that it is difficult to be deformed into a shape corresponding to the installation space, and the degree of installation freedom is low.

  This invention is made | formed in view of the said subject, and it aims at providing the technique which raises the installation freedom degree of the wiring tool in a vehicle.

  In order to solve the above-described problem, the first aspect is a wiring tool that is formed in a plate shape having irregularities, and holds the electric wires in a required shape, and has irregularities that form a wiring space in which the electric wires are laid. A base having a base-side shape maintaining part reinforced by a shape, and a base-side elastic part formed between the plurality of base-side shape maintaining parts and extending and contracting by being formed in a bellows shape, and the base And a covering body having a bellows-like covering-side expansion / contraction part that expands and contracts in accordance with the shape of the base-side expansion / contraction part at a position corresponding to the base-side expansion / contraction part.

  Further, according to a second aspect, in the wiring tool according to the first aspect, a space communicating with the wiring space is formed between the base-side stretchable part and the covering-side stretchable part. Is an opening width of the opening by extending inwardly in the opening in at least a part of the opening formed by the zigzag ends of both the base-side stretchable part and the covering stretchable part. And a narrow portion for narrowing.

  Moreover, the 3rd aspect is a wiring piece which concerns on a 2nd aspect, The said narrow part is a protrusion piece currently formed in the edge part of the said base | substrate side expansion-contraction part or the said covering body expansion-contraction part.

  According to a fourth aspect, in the wiring portion according to any one of the first to third aspects, the base is provided at an outer edge portion of the base, and an electric wire laid on the wiring portion is fixed. The electric wire fixing part to be further provided.

  According to the wiring tool which concerns on the 1st-4th aspect, it becomes possible to expand and contract a wiring tool by providing a base | substrate side expansion-contraction part and a covering body side expansion-contraction part. Therefore, the wiring tool can be arbitrarily deformed according to the installation location. Therefore, the installation freedom degree of a wiring tool can be raised.

  According to the wiring tool according to the second aspect, the electric wire laid inside the wiring tool is externally formed from the opening formed by the zigzag end portions of the base-side stretchable part and the covering-side stretchable part that are bellows-like. It can be suppressed by the narrow portion.

  According to the wiring tool which concerns on a 3rd aspect, it can suppress that an electric wire is exposed outside by the protrusion piece formed in the base | substrate side expansion-contraction part or the covering body side expansion-contraction part.

  According to the wiring tool which concerns on a 4th aspect, an electric wire is fixed to a wiring tool through an electric wire fixing | fixed part in the outer edge part of a wiring tool. Therefore, it becomes easy to electrically connect the electric wire laid on the wiring tool to the external device.

It is a disassembled perspective view which shows the base part and cover part which comprise the wiring tool which concerns on 1st Embodiment. It is a whole perspective view of the wiring tool concerning a 1st embodiment. It is a schematic side view which shows the wiring tool made to expand-contract. It is a schematic side view which shows the wiring tool bent and deformed.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiment is an example embodying the present invention, and is not an example of limiting the technical scope of the present invention.

<First Embodiment>
FIG. 1 is an exploded perspective view showing a base portion 1 and a cover portion 2 constituting the wiring tool 10 according to the first embodiment. FIG. 2 is an overall perspective view of the wiring tool 10 according to the first embodiment. The wiring tool 10 is formed in an uneven plate shape, and constitutes a wire harness by holding a plurality of electric wires 9 (wire bundle) in a required shape. This wire harness is attached to, for example, a space under a seat in a vehicle, a space behind a ceiling, a trunk room, or the like, and is connected to other electric wires or electrical equipment existing around the wire harness.

  In FIG. 1, a large number of wires 9 are laid in the wiring tool 10, but this is merely an example, and the number of the wires 9 to be laid or the branching position can be arbitrarily changed. For example, in FIG. 1, the electric wire 9 laid on the wiring portion 11 a extends between the base-side stretchable portion 12 and the covering-side stretchable portion 22 to the wiring portion 11 b. However, the electric wires 9 may be individually laid on only the wiring portions 11a and 11b.

  The wiring tool 10 is a member obtained by vacuum forming a flat resin member. However, the wiring tool 10 may be formed by other methods such as injection molding. In any case, the uneven shape of the wiring tool 10 has a relatively simple shape that can be formed by vacuum forming. The wiring tool 10 is made of, for example, a resin such as polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), polyethylene terephthalate (PET), or polyamide (PA).

  The wiring tool 10 is configured by overlapping the cover portion 2 on the base portion 1. The base part 1 is an example of a base body, and the cover part 2 is an example of a covering. In the following description, the surface of the base portion 1 on which the cover portion 2 is overlapped may be referred to as “upper surface” and the opposite surface may be referred to as “lower surface”. In addition, in the cover part 2, the surface on the side overlapped with the base part 1 may be referred to as a “lower surface” and the opposite surface may be referred to as an “upper surface”.

  In the following description, when the position or shape of the components of the base part 1 or the cover part 2 is described in association with the cover part 2 or the base part 1, the cover part 2 is overlapped with the base part 1. Presupposes a combined state.

<Base part 1>
The base portion 1 is a member having wiring portions 11a and 11b facing a wiring space 11S for laying the electric wires 9. Although the wiring parts 11a and 11b shown in FIG. 1 are formed in a substantially rectangular shape, it is conceivable that they are formed in other shapes. The base portion 1 includes a base-side stretchable portion 12 and two base-side shape maintaining portions 13 a and 13 b that are connected to both ends of the base-side stretchable portion 12.

  The base-side stretchable portion 12 is a bellows-like portion whose longitudinal section is a zigzag surface. The base-side stretchable portion 12 is configured to be reversibly stretchable and bendable by being formed in a bellows shape as described above.

  The base-side shape maintaining portions 13a and 13b have an uneven shape that forms a wiring space 11S in which the electric wires 9 are laid. The base-side shape maintaining portions 13a and 13b have a concavo-convex shape and are reinforced so as to maintain the shape. Specifically, the base-side shape maintaining portions 13a and 13b have wiring portions 11a and 11b that form bottom plates facing the wiring space 11S and step portions 14 that form side walls of the wiring space 11S. The step portion 14 is formed upright from a peripheral end portion of the wiring portions 11 a and 11 b excluding a portion continuous with the base-side stretchable portion 12. Further, each of the base-side shape maintaining portions 13 a and 13 b has a flat frame portion 15 that extends outward from the outer edge portion of the step portion 14 and forms a bent portion at a boundary portion with the step portion 14.

  The base-side shape maintaining portions 13a and 13b are provided with a stepped portion 14 rising from the peripheral ends of the wiring portions 11a and 11b and a frame portion 15 connected thereto, so that the wiring portions 11a and 11b are maintained flat. It is reinforced so that. Thereby, even when the base-side stretchable portion 12 is stretched or bent, the flat plate shape of the wiring portions 11a, 11b of the base-side shape maintaining portions 13a, 13b is firmly maintained. It should be noted that a reinforcing raised portion that is shorter than the stepped portion 14 that protrudes toward the cover portion 2 may be formed in the wiring portions 11a and 11b. Further, by forming such a raised portion, the electric wire 9 may be laid along a path formed by the raised portion or the stepped portion 14.

<Cover part 2>
The cover portion 2 is overlapped with the base portion 1 to cover the wiring space 11S formed by the base portion 1. The cover 2 has a bellows-like covering-side stretchable portion 22 that stretches in accordance with the shape of the base-side stretchable portion 12 at a position (opposite position) corresponding to the base-side stretchable portion 12. Further, the cover portion 2 includes two covering-side shape maintaining portions 23 a and 23 b that are continuous with both end portions of the covering-side stretchable portion 22.

  The cover part 2 according to the present embodiment has a shape corresponding to the base part 1. That is, the covering-side stretchable portion 22 has substantially the same shape as the base-side stretchable portion 12, and is a bellows-like portion whose longitudinal section is a zigzag surface. Further, each of the covering body side shape maintaining portions 23a and 23b has substantially the same shape as the base body side shape maintaining portions 13a and 13b. Specifically, each of the covering body side shape maintaining portions 23a and 23b includes a top plate portion 231a and 231b covering the wiring space 11S formed by the base body side shape maintaining portions 13a and 13b, and the top plate portions 231a and 231b. A stepped portion 24 is provided that rises from the peripheral end portion excluding the portion connected to the cover-side stretchable portion 22 to the lower side of the cover portion 2. The top plate portions 231a and 231b form surfaces (facing surfaces) that face the wiring portions 11a and 11b. Furthermore, the covering-side shape maintaining portions 23a and 23b have a flat frame portion 25 that extends outward from the outer edge portion and forms a bent portion at a boundary portion with the step portion 14.

  After the frame part 15 of the base part 1 and the frame part 25 of the cover part 2 are overlapped, the wiring tool 10 is integrated with each other by the frame parts 15 and 25 being welded together by ultrasonic welding. The In addition, as means for integrating the base portion 1 and the cover portion 2, in addition to heat welding by means other than ultrasonic waves, those utilizing a binding means such as an adhesive or a belt can be considered. Further, a connecting structure that can be fitted and connected to each other, such as overlapping portions such as the frame parts 15 and 25, may be provided, and the base part 1 and the cover part 2 may be integrated via the connecting structure.

  The base-side expansion / contraction part 12 is formed at the boundary between the base-side shape maintaining parts 13a and 13b and at the ends of the wiring parts 11a and 11b of the base-side shape maintaining parts 13a and 13b and a part of the step parts 14 on both sides. Only lined up. Similarly, the covering body side expansion / contraction part 22 is continued to the end part of the top plate part of the covering body side shape maintaining parts 23a, 23b and only a part of the step parts 24 on both sides. For this reason, when the frame portion 15 and the frame portion 25 are welded, a gap (opening 30) is formed between the base-side stretchable portion 12 and the covering-side stretchable portion 22. That is, the openings 30 are formed on both sides of the wiring tool 10 by the zigzag end portion 121 of the base-side stretchable portion 12 and the zigzag end portion 221 of the covering-side stretchable portion 22 (FIG. 2). ). In FIG. 2, only the opening 30 on the near side is shown, and the opening 30 on the opposite side is not shown.

  By providing such an opening 30, when the wiring tool 10 is stretched or bent, the base-side stretchable part 12 and the cover-side stretchable part 22 come into contact with each other, and the wiring tool 10 is deformed. It is suppressed that it is disturbed. In addition, the opening part 30 does not need to be formed in the wiring tool by the edge part of a base | substrate side expansion-contraction part and a covering body side expansion-contraction part mutually adhere | attaching. In this case, it is preferable that the shapes of the base-side stretchable portion 12 and the covering-side stretchable portion 22 are designed so that the stretchable deformation or bending deformation of the wiring tool 10 is not hindered.

  As shown in FIG. 1 or FIG. 2, the protruding piece 17 is provided near the center of the zigzag end 121 of the base-side stretchable part 12. The protruding piece 17 extends toward the zigzag end portion 221 of the covering-side stretchable portion 22. The projecting piece 17 is an example of a narrow portion that extends inward of the opening 30 to narrow the opening width of the opening 30 (the gap width of the portion where the end 121 and the end 221 face each other).

  As shown in FIG. 1, when the electric wire 9 is laid inside the wiring tool 10, the electric wire 9 is also laid in a space sandwiched between the base-side stretchable portion 12 and the covering-side stretchable portion 22. Here, since a gap (opening 30) is formed between the base-side stretchable part 12 and the covering-side stretchable part 22, the wire 9 laid inside is exposed to the outside from the opening 30. There is a fear. However, by providing the protruding pieces 17, the opening width can be narrowed, so that the exposure of the electric wires 9 can be suppressed. A plurality of such protruding pieces 17 may be provided.

  In the present embodiment, the protruding piece 17 is provided only at the end 121, but may be provided at the end 221 or may be provided at both the ends 121 and 221. Further, the narrow portion does not need to be provided integrally with the base-side stretchable portion 12 or the cover-side stretchable portion 22, and may be separated from these.

  As shown in FIG. 1, a plurality of cutout portions 18 are formed in the stepped portion 14 of the base portion 1 in a dispersed manner. Further, the step portion 24 of the cover portion 2 is provided with a plurality of cutout portions 28 at positions corresponding to the cutout portions 18. When the wiring tool 10 is formed, the outlet 31 for leading the electric wires 9 laid in the wiring space 11S to the outside is formed.

  Further, an electric wire fixing part 19 a of the base part 1 is provided in the vicinity of the notch part 18 of the base part 1. The electric wire fixing portion 19a has a structure for fixing the electric wire 9 in a fixed position by connecting the relay connector 91 attached to the end portion of the electric wire 9. The electric wire 9 can be fixed via the relay connector 91 in the vicinity of the outer edge portion of the base portion 1 by the electric wire fixing portion 19a. Here, the relay connector 91 is a member for electrically connecting, for example, an external device and the electric wire 9 laid on the wiring tool 10. In order to connect the relay connector 91 to the electric wire fixing part 19a, in this embodiment, the relay connector 91 is provided with a protruding piece (not shown), and the electric wire fixing part 19a has a through hole into which the protruding piece is fitted. Is formed. Of course, the structure of the electric wire fixing portion 19a is not limited to this, and any connection structure may be used as long as the relay connector 91 can be fixed.

  Further, as another means for fixing the electric wire 9 near the outer edge portion of the base portion 1, the electric wire 9 may be fixed to the base portion 1 via a belt member (not shown), for example. In this case, as shown in FIG. 1, an electric wire fixing portion 19 b in which two adjacent through holes are formed may be provided in the vicinity of the notch portion 18. By passing the belt member wound around the electric wire 9 through the two through holes, the electric wire 9 and the base portion 1 can be fixed integrally.

  Thus, by providing the electric wire fixing portions 19a and 19b, the electric wire can be fixed at a fixed position, so that it is easy to be electrically connected to an external device or the like. In particular, in the case of the electric wire fixing portion 19a, the relay connector 91 can be fixed at a fixed position, so that it becomes easy to connect other connectors. Moreover, in the case of the electric wire fixing | fixed part 19b, the electric wire 9 can be hold | maintained so that the length of the electric wire exposed to the exterior of the wiring tool 10 may be kept constant.

  FIG. 3 is a schematic side view showing the wiring tool 10 that is stretched and deformed. FIG. 3A illustrates the wiring device 10 in a natural state that is not stretched and deformed. FIG. 3B illustrates the wiring tool 10 contracted from the natural state, and FIG. 3C illustrates the wiring tool 10 extended from the natural state.

  As shown in FIGS. 3A to 3C, the wiring tool 10 integrally expands and contracts the base-side stretchable part 12 and the covering-body-side stretchable part 22, thereby forming the base-side shape maintaining parts 13 a and 13 b and the covering. The body-side shape maintaining parts 23a and 23b can be relatively moved closer to or away from each other. Therefore, the length of the wiring tool 10 can be made variable.

  Further, as shown in FIG. 3, when the wiring tool 10 is expanded and contracted, the opening width of the opening 30 is widened and the electric wire 9 may be exposed to the outside. However, by providing the protruding piece 17, the electric wire 9 to be exposed from the opening 30 can be retained inside.

  FIG. 4 is a schematic side view showing the wiring tool 10 bent and deformed. As shown in FIG. 4, the relative positional relationship between the base-side shape maintaining portions 13a and 13b can be changed three-dimensionally by bending and deforming the base-side stretchable portion 12 and the covering-side stretchable portion 22. . Of course, the dihedral angle (inclination angle) formed by the substrate-side shape maintaining portion 13a and the substrate-side shape maintaining portion 13b is also arbitrarily changed by bending and deforming the substrate-side elastic portion 12 and the covering-body-side elastic portion 22. be able to.

  As described above, according to the wiring tool 10 according to the present embodiment, the length of the wiring tool 10 can be adjusted according to the installation space by including the base-side stretchable part 12 and the covering-side stretchable part 22. Or can be easily bent. Therefore, the installation freedom degree of the wiring tool 10 can be raised.

  For example, when installing the wiring tool 10 to which the electric wires 9 are attached in the installation spaces having different shapes, in the configuration of the conventional wiring tool, a wiring tool suitable for the shape of each installation space is prepared. There was a need. On the other hand, since the wiring tool 10 which concerns on this embodiment can be expanded-contracted or bent, the same wiring tool 10 can be applied to wiring tool installation space of a different shape. Thereby, the number of parts can be reduced.

<2. Modification>
Although the embodiment has been described above, the present invention is not limited to the above, and various modifications are possible.

  For example, the quantity of the base | substrate side expansion-contraction part and base | substrate side shape maintenance part with which the wiring tool which concerns on this invention is provided is not limited to what was shown in FIG. For example, the base-side shape maintaining part and the base-side stretchable part may be alternately repeated. Moreover, the wiring tool of this invention is not limited to what a base | substrate side shape maintenance part and a base | substrate side expansion-contraction part continue in one direction by turns, You may be continued alternately so that it may spread in multiple directions.

  Further, the cover portion 2 shown in FIG. 1 has a shape corresponding to the base portion 1. For example, the cover side shape maintaining portions 23a and 23b are formed so as to form a flat plate-like surface. May be. Moreover, the covering body side shape maintenance parts 23a and 23b may be formed so that a part or all of the ceiling plate part protrudes toward the base part 1 side. In the case of such a cover part, it is also possible to press and fix the electric wires laid on the wiring parts 11a and 11b by the cover part.

  Moreover, the base part 1 and the cover part 2 may be formed integrally with the connection part that can be bent and deformed. In this case, the number of parts is reduced, and the number of steps for attaching the wiring tool to the electric wire is further simplified.

  In general, a member obtained by vacuum forming a flat plate member can be manufactured more easily and at a lower cost than a member obtained by resin injection molding. Therefore, in the present invention, if the substrate and the cover are members obtained by vacuum forming a flat member, the number of manufacturing steps and the manufacturing cost are reduced.

  Furthermore, the configurations shown in the above-described embodiment or modification can be appropriately modified and combined, or can be omitted as appropriate so as not to contradict each other.

DESCRIPTION OF SYMBOLS 1 Base part 10 Wiring tool 11S Wiring space 11a, 11b Wiring part 12 Base | substrate side expansion-contraction part 121,221 End part 13a Base | substrate side shape maintenance part 13a, 13b Base | substrate side shape maintenance part 14,24 Step part 15,25 Frame part 17 Protrusion Pieces 18, 28 Notches 19a, 19b Wire fixing part 2 Cover part 22 Covering body side expansion / contraction part 231a, 231b Top plate part 23a, 23b Covering body side shape maintaining part 30 Opening part 31 Leading hole 9 Electric wire 91 Relay connector

Claims (4)

It is formed into a plate shape with irregularities, it is a wiring tool that holds the electric wire in the required shape,
The base-side shape maintaining part reinforced by the concavo-convex shape forming the wiring space in which the electric wire is laid, and a plurality of the base-side shape maintaining parts are formed continuously, and expands and contracts by being formed in a bellows shape. A base body having a base-side stretchable part;
A covering body that covers the wiring space formed by the base body and has a bellows-like covering body side expansion / contraction section that extends and contracts in accordance with the shape of the base body side expansion / contraction section at a position corresponding to the base body side expansion / contraction section. Wiring tool. The wiring tool according to claim 1,
The space between the base-side stretchable part and the covering-side stretchable part communicates with the wiring space,
The wiring tool is
At least a part of the opening formed by the zigzag ends of both the base-side stretchable part and the covering stretchable part extends inwardly of the opening, thereby narrowing the opening width of the opening. Narrow part,
A wiring tool further comprising: In the wiring tool according to claim 2,
The said narrow part is a wiring tool which is the protrusion piece formed in the edge part of the said base | substrate side expansion-contraction part or the said covering body expansion-contraction part. In the wiring part according to any one of claims 1 to 3,
The substrate is
The wiring tool further provided with the electric wire fixing part provided in the outer edge part of the said base | substrate, and fixing the electric wire laid in the said wiring part.

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