JP6561872B2 - Wire harness and exterior member - Google Patents

Description

  The present invention relates to a wire harness and an exterior member.

  Patent Document 1 discloses a technique for collectively enclosing a conductive path with a corrugated tube as means for protecting a conductive path in which a plurality of electric wires are bundled. If the corrugated tube is displaced in the length direction with respect to the conductive path, a part of the conductive path is exposed. Therefore, Patent Document 1 discloses that as a countermeasure, a part of the corrugated tube is reduced in diameter by a binding band. Fixed to the conductive path.

JP 2003-235124 A

  In the above protection means, there is a problem that the number of parts is large because the binding band is used separately from the corrugated tube as a means for preventing the positional deviation between the corrugated tube and the conductive path.

  The present invention has been completed based on the above situation, and an object thereof is to reduce the number of parts.

The wire harness of the first invention is
Multiple wires,
An elastic sheet surrounding the plurality of electric wires;
It is characterized in that it is provided with a plurality of protrusions that are integrally formed with the elastic sheet and elastically abut against the electric wire.

The exterior member of the second invention is
An elastic sheet surrounding a plurality of wires;
It is characterized in that it is formed integrally with the elastic sheet and includes a plurality of protrusions that can elastically contact the electric wire.

  The plurality of electric wires are protected by being surrounded by an elastic sheet. By the elastic contact between the electric wire and the protruding portion, the relative displacement in the length direction of the electric wire and the elastic sheet is regulated. Since the protrusion is formed integrally with the elastic sheet, the number of parts can be reduced as compared with the case where the protrusion and the elastic sheet are separate members.

Sectional drawing showing the state which protected the several electric wire with the exterior member in Example 1 Plan view showing a state where multiple wires are temporarily held on an elastic sheet XX sectional view of FIG. YY sectional view of FIG.

  In the first and second aspects of the present invention, the protrusion may be capable of inelastically contacting the electric wire when the elastic sheet does not surround the plurality of electric wires. According to this configuration, when the electric wire is set between the protrusions in a state where the elastic sheet does not surround the electric wire, the electric wire is temporarily held on the elastic sheet. At this time, since the protruding portion is inelastically in contact with the electric wire, the relative positional relationship between the electric wire and the elastic sheet can be easily adjusted in the length direction of the electric wire.

  In the first and second aspects of the present invention, the protruding end portion of the protruding portion may be formed with a retaining portion capable of restricting separation of the electric wire sandwiched between the adjacent protruding portions. . According to this configuration, in a state where the elastic sheet does not surround the conductive path, the electric wire can be held between the protrusions.

<Example 1>
Embodiment 1 of the present invention will be described below with reference to FIGS. The wire harness 10 of the first embodiment includes a conductive path 11 composed of a plurality of electric wires 12 and an exterior member 20 that collectively surrounds the conductive paths 11 (the plurality of electric wires 12). The electric wire 12 has a known form in which the core wire 13 is surrounded by an insulating coating 14. The plurality of electric wires 12 are arranged with their length directions (axial directions) parallel to each other.

  The exterior member 20 includes an elastic sheet 21 made of a rubber material (for example, acrylic rubber), a plurality of protrusions 23 formed integrally with the elastic sheet 21, and a plurality of latches formed integrally with the elastic sheet 21. It is a single member provided with a protrusion 26. The elastic sheet 21 has a flat plate shape with a constant thickness that forms a substantially square shape, and can be freely curved and deformed. The length dimension (vertical dimension in FIG. 2) of the elastic sheet 21 is substantially the same length as the region to be protected in the length direction of the electric wire 12 (conductive path 11). The width dimension of the elastic sheet 21 (the dimension in the left-right direction in FIG. 2) is a dimension that is slightly larger than the circumferential length necessary to collectively surround the conductive path 11.

  The protrusion 23 is disposed on the protrusion forming surface 22 that becomes the inner peripheral surface in a state of surrounding the conductive path 11 between the front and back surfaces of the elastic sheet 21. The protrusion 23 has a columnar portion 24 that protrudes from the protrusion forming surface 22 at a substantially right angle, and a retaining portion 25 that is formed at the protruding end of the columnar portion 24. The protruding dimension of the columnar portion 24 is the same as or slightly larger than the outer diameter of the electric wire 12. The retaining portion 25 has a substantially spherical shape, and the diameter of the retaining portion 25 is set to be larger than the maximum diameter of the columnar portion 24. The plurality of protrusions 23 are arranged at a constant pitch in the length direction of the elastic sheet 21 and are arranged at a constant pitch in the width direction of the elastic sheet 21.

  In the width dimension of the elastic sheet 21 (direction substantially orthogonal to the axial direction of the electric wire 12), the minimum interval between the columnar portions 24 of the adjacent protrusions 23 is set to be slightly larger than the outer diameter of the electric wire 12. . Therefore, in a state where the electric wires 12 are arranged between the adjacent protrusions 23, even if the electric wires 12 come into contact with the columnar portions 24, the columnar portions 24 are not elastically deformed. Similarly, in the width dimension of the elastic sheet 21, the minimum interval between the retaining portions 25 of the adjacent protrusions 23 is set to be slightly smaller than the outer diameter of the electric wire 12. Therefore, the electric wires 12 arranged between the adjacent protruding portions 23 (columnar portions 24) are difficult to pass through the gaps between the adjacent retaining portions 25.

  The locking protrusion 26 has a small-diameter base portion 27 that protrudes substantially perpendicularly from the protrusion-forming surface 22, and a large-diameter locking portion 28 that is formed at the protruding end of the small-diameter base portion 27. The projecting dimension of the small-diameter base 27 is substantially the same as the thickness of the elastic sheet 21. The large-diameter locking portion 28 has a coaxial column shape with the small-diameter base 27, and the diameter of the large-diameter locking portion 28 is set to be larger than the diameter of the small-diameter base 27. The plurality of locking projections 26 are arranged along one edge (left side in FIG. 2) in the width direction of the elastic sheet 21, and are arranged at a constant pitch in the length direction of the elastic sheet 21. .

  A plurality of locking holes 29 are formed at the same pitch as the locking protrusions 26 at the other edge (right side in FIG. 2) of the elastic sheet 21 in the width direction. The locking hole 29 has a circular shape and penetrates the elastic sheet 21 in the thickness direction. The inner diameter of the locking hole 29 is the same as or slightly larger than the outer diameter of the small-diameter base portion 27, and is set to be smaller than the outer diameter of the large-diameter locking portion 28.

  When the conductive member 11 is surrounded by the exterior member 20 having the above-described configuration, the elastic sheet 21 is flattened and placed on a work table or the like so that the protrusion forming surface 22 faces upward. Then, a plurality of electric wires 12 are set on the elastic sheet 21. At this time, each electric wire 12 is pushed in between the protruding portions 23 adjacent in the width direction, and the electric wires 12 are arranged between the adjacent columnar portions 24. Since the minimum distance between the adjacent retaining portions 25 is smaller than the outer diameter of the electric wire 12, even if the elastic sheet 21 is turned upside down (reversely turned upside down), the electric wires 12 arranged between the adjacent columnar portions 24 are not. , Never leave. Therefore, the plurality of electric wires 12 are temporarily held by the exterior member 20 (elastic sheet 21).

  The protruding dimension of the columnar portion 24 is the same as or smaller than the outer diameter of the electric wire 12, and the minimum interval between the adjacent columnar portions 24 is the same as or larger than the outer diameter of the electric wire 12. Therefore, in a state in which the elastic sheet 21 has a flat plate shape and the plurality of electric wires 12 are temporarily held by the exterior member 20, the electric wires 12 and the exterior member 20 are relatively in the axial direction (length direction) of the electric wires 12. It is possible to move on.

  After temporarily holding the plurality of wires 12 on the exterior member 20 as described above, the positions of the exterior member 20 and the wires 12 are adjusted in the length direction of the wire 12. After the adjustment, the elastic sheet 21 is bent so as to wrap the plurality of electric wires 12. At this time, a plurality of electric wires 12 different from the electric wires 12 temporarily held between adjacent protrusions 23 are surrounded by a plurality of retaining portions 25 so as to be bundled. Then, when the elastic sheet 21 is deformed into a substantially cylindrical shape, the plurality of locking projections 26 are individually locked into the corresponding locking holes 29 from the outer peripheral side of the elastic sheet 21. At this time, the large-diameter locking portion 28 is deformed in a reduced diameter, and the locking hole 29 is expanded and deformed. Due to the locking of the locking protrusions 26 and the locking holes 29, the elastic sheet 21 is held in a state of collectively surrounding the plurality of electric wires 12. As a result, the plurality of electric wires 12 are protected from the interference of foreign matters by the exterior member 20.

  In a state where the electric wire 12 is protected by the exterior member 20, the plurality of protrusions 23 approach in the circumferential direction as the elastic sheet 21 is bent. Thereby, the electric wire 12 arrange | positioned between the adjacent projecting parts 23 is elastically pinched by the adjacent projecting parts 23. At this time, the portion of the protrusion 23 that contacts the electric wire 12 and the portion of the protrusion forming surface 22 of the elastic sheet 21 that contacts the electric wire 12 are elastically deformed. By the frictional resistance resulting from this elastic deformation, the electric wire 12 and the exterior member 20 are restricted from relative movement in the length direction of the electric wire 12. Note that the retaining portions 25 of the adjacent protrusions 23 are also in close contact with each other while being elastically deformed.

  The wire harness 10 of the first embodiment includes a plurality of electric wires 12 and an exterior member 20 that protects the plurality of electric wires 12. The exterior member 20 includes an elastic sheet 21 that collectively surrounds the plurality of electric wires 12, and a plurality of protrusions 23 that are integrally formed with the elastic sheet 21 and can elastically contact the electric wires 12. ing. According to this configuration, the plurality of electric wires 12 are protected by being surrounded by the elastic sheet 21. And when the electric wire 12 and the protrusion part 23 contact | abut elastically, the relative displacement in the length direction of the electric wire 12 and the elastic sheet 21 is controlled. Since the protrusion 23 is formed integrally with the elastic sheet 21, the number of parts can be reduced as compared with the case where the protrusion 23 and the elastic sheet 21 are separate members.

  In addition, when the elastic sheet 21 has a flat plate shape that does not surround the plurality of electric wires 12, the protrusion 23 can abut on the electric wires 12 in an inelastic manner. According to this configuration, when the electric wire 12 is set between the protrusions 23 in a state where the elastic sheet 21 does not surround the electric wire 12, the electric wire 12 is temporarily held on the elastic sheet 21. At this time, since the protrusion 23 is inelastically abutting against the electric wire 12, the relative positional relationship between the electric wire 12 and the elastic sheet 21 can be easily adjusted in the length direction of the electric wire 12.

  In addition, a protruding end portion of the protruding portion 23 is formed with a retaining portion 25 that can regulate the separation of the electric wire 12 sandwiched between the adjacent protruding portions 23. According to this configuration, the electric wire 12 can be held between the protrusions 23 in a state where the elastic sheet 21 does not surround the conductive path 11.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above-described embodiment, in a state where the elastic sheet does not surround the electric wire, the protruding portion abuts on the electric wire inelastically, but the protruding portion may elastically abut on the electric wire. Good.
(2) In the above-described embodiment, the retaining portion is formed at the protruding end of the projecting portion, but the projecting portion may not have the retaining portion.
(3) In the above embodiment, the plurality of protrusions are arranged so as to be aligned at a constant pitch in the length direction and the circumferential direction of the electric wire. However, the plurality of protrusions are randomly arranged to make the electric wire into a zigzag shape, for example. May be routed.

DESCRIPTION OF SYMBOLS 10 ... Wire harness 12 ... Electric wire 20 ... Exterior member 21 ... Elastic sheet 23 ... Projection part 25 ... Stopping part

Claims (3)

Multiple wires,
An elastic sheet surrounding the plurality of electric wires;
A plurality of protrusions formed integrally with the elastic sheet and capable of elastic contact with the electric wire ;
In a state where the elastic sheet does not surround the plurality of electric wires, the protrusions can be inelastically contacted with the electric wires arranged between the adjacent protrusions,
In a state where the elastic sheet is curved and surrounds the plurality of electric wires, the wire harness arranged between the adjacent protrusions is elastically sandwiched between the adjacent protrusions . The wire harness according to claim 1, wherein a protruding end portion of the protruding portion is formed with a retaining portion capable of restricting the electric wire sandwiched between the adjacent protruding portions from being detached . An elastic sheet surrounding a plurality of wires;
A plurality of protrusions formed integrally with the elastic sheet and capable of elastic contact with the electric wire;
In a state where the elastic sheet does not surround the plurality of electric wires, the protrusions can be inelastically contacted with the electric wires arranged between the adjacent protrusions,
An exterior member in which, in a state where the elastic sheet is curved and surrounds the plurality of electric wires, the electric wires arranged between the adjacent protrusions are elastically sandwiched between the adjacent raised portions.

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