JP2017192186A - Exterior member and electric wire with exterior member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for easily performing a work of attaching an exterior member to a wire circumference.SOLUTION: An exterior member 10 comprises a state changing member 20 and an exterior main body part 30. The state changing member 20 is formed so as to be changed a state between a flat plate state and a curvature plate state, is transferred to the flat plate state by adding an external force in the curvature plate state, is maintained in the flat plate state in accordance with the residual of a stress, and is transferred to the curvature plate state by adding the external force in the flat plate state. In the exterior main body part 30, the state changing member 20 is attached, and the state changing member 20 is set to an opening state attachable for an electric wire in the flat plate state, and the state changing member 20 is set to a closing state maintainable a state of being attached to the electric wire in the curvature plate state.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an exterior member that is sheathed on an electric wire or the like.

  Patent document 1 is disclosing the adhesive sheet provided with a sheet | seat base material and an adhesion layer, and being attached to the circumference | surroundings of an electric wire.

Japanese Patent Application Laid-Open No. 2015-30785

  Here, if an adhesive layer is used to keep the sheet-like exterior member attached around the electric wire, it is difficult to redo when the sheet attachment fails, and the failed one may become a defective product. . Moreover, when the adhesive layer is previously formed in the sheet | seat, the release paper which suppresses careless adhesion of an adhesive layer is normally required, and the operation | work which peels the said release paper is needed. From these, the operation of attaching the sheet-like member to the electric wire by the adhesive layer is troublesome. Further, the peeled release paper becomes dust, and the peeled release paper may be mixed into the product.

  Moreover, the tubular member in which the slit was formed in the axial center direction as an exterior member may be employ | adopted. In this case, it is difficult to maintain the tubular member in a state where it is split open by the slit, and it takes time and effort to mount.

  Then, an object of this invention is to provide the technique which can make the operation | work which attaches an exterior member around an electric wire easy.

  In order to solve the above-described problem, the exterior member according to the first aspect is formed so that the state can be changed between a flat plate state and a curved plate state, and an external force is applied in the state of the curved plate state, and the flat plate state After the transition to the flat plate state, even when the external force is removed, the stress remains and is maintained in the flat plate state, and the external force is applied in the flat plate state to remove the stress. The state changing member that shifts to the curved plate state and the state changing member are attached, and the state changing member is in an open state that can be attached to an electric wire in a state where the state changing member is in the flat plate state, and the state changing member is An exterior body part that is in a closed state capable of maintaining a state attached to the electric wire in the curved plate state.

  The exterior member which concerns on a 2nd aspect is an exterior member which concerns on a 1st aspect, Comprising: The said exterior body part is formed in the sheet form.

  The exterior member which concerns on a 3rd aspect is an exterior member which concerns on a 2nd aspect, Comprising: The said state change member is provided in the intermediate | middle area | region in the circumferential direction of the said exterior body part.

  An exterior member according to a fourth aspect is the exterior member according to the first aspect, wherein the exterior body portion is formed in a tube shape, and the exterior body portion has a slit extending along an axial direction. Is formed.

  The exterior member according to the fifth aspect is the exterior member according to any one of the first to fourth aspects, and a plurality of the state change members are provided at intervals along the extending direction of the electric wire. It has been.

  The electric wire with an exterior member according to a sixth aspect includes the exterior member according to any one of the first to fifth aspects, and an electric wire to which the exterior member is attached.

  According to the first to fifth aspects, the state change of the state change member changes between the open state in which the exterior body part can be attached to the electric wire and the closed state in which the state attached to the electric wire can be maintained. For this reason, an exterior member can be easily attached around an electric wire by shifting to a closed state after arranging an electric wire in an exterior body part in an open state.

  In particular, according to the second aspect, the state of the sheet-like exterior main body can be changed between a state in which the sheet-like exterior body portion is spread in a sheet shape and a state in which the sheet-like exterior body is wound around the wire. Thereby, a sheet-like exterior main-body part can be easily wound around an electric wire.

  In particular, according to the 3rd aspect, it can be made the state which piled up facing the same surfaces of the edge part extended along the extension direction of an electric wire among exterior body parts.

  In particular, according to the fourth aspect, the state of the tube-shaped exterior body portion can be changed between a state where it is split open with a slit and a state where it is closed. Thereby, a tube-shaped exterior main-body part can be easily attached around an electric wire.

  In particular, according to the fifth aspect, it is possible to suppress an increase in the state changing member even when the dimension along the extending direction of the electric wire in the exterior body portion is large. In addition, the exterior member can be mass-produced by cutting out a desired dimension from the long exterior body portion.

  According to the 6th aspect, a state change is carried out between the open state which can attach an exterior main body part to an electric wire, and the closed state which can maintain the state attached to the electric wire with the state change of a state change member. For this reason, an exterior member can be easily attached around an electric wire by shifting to a closed state after arranging an electric wire in an exterior body part in an open state.

It is a top view which shows the exterior member which concerns on 1st Embodiment. It is a perspective view which shows the state change member in a flat plate state. It is a perspective view which shows the state change member in a curved board state. It is a perspective view which shows the electric wire with an exterior member which concerns on 1st Embodiment. It is a partial cross section figure which shows the electric wire with an exterior member which concerns on 1st Embodiment. It is a perspective view which shows the modification of how to wind the exterior member around an electric wire. It is a perspective view which shows the electric wire with an exterior member which concerns on 2nd Embodiment. It is a partial cross section figure which shows the exterior member which concerns on 2nd Embodiment. It is a partial cross section figure which shows the exterior member which concerns on 2nd Embodiment.

{First embodiment}
Hereinafter, the exterior member according to the first embodiment will be described. FIG. 1 is a plan view showing an exterior member 10 according to the first embodiment.

  The exterior member 10 includes a state changing member 20 and an exterior main body 30. The exterior member 10 is attached around a wire or the like for the purpose of protection or the like, for example.

  The state change member 20 will be described in detail with reference to FIGS. 2 and 3 in addition to FIG. FIG. 2 is a perspective view showing the state changing member 20 in a flat plate state. FIG. 3 is a perspective view showing the state changing member 20 in a curved plate state.

  The state change member 20 is formed so as to be changeable with elastic deformation between a flat plate state and a curved plate state. When the state change member 20 is in a curved plate state, an external force is applied and the state change member 20 shifts to a flat plate state. After the external force is removed, the state changing member 20 that has shifted to the flat plate state remains stressed and is maintained in the flat plate state. In addition, the state changing member 20 shifts to the curved plate state when an external force is applied and the stress is removed in a flat plate state.

  The state changing member 20 is made of, for example, a metal such as stainless steel or a reinforced plastic. In the present embodiment, the state changing member 20 is formed in a long band shape. The flat state of the state changing member 20 is a state in which a portion between the longitudinal direction one end portion 21 and the other end portion 22 extends linearly as shown in FIG. Further, the curved plate state of the state changing member 20 is a state where a portion between the longitudinal direction one end portion 21 and the other end portion 22 extends in a curved shape, as shown in FIG. The degree of bending of the state changing member 20 in the curved plate state may be set as appropriate according to the diameter of the electric wire or electric wire bundle to be wound.

  The state changing member 20 shifts to a flat plate state when an external force is applied and extended in a state of the curved plate state. At this time, as an external force, a component that presses the intermediate portion in the width direction of the state change member 20 in the direction from the one main surface 23 toward the other main surface 24 is added, so that it is located at both ends in the width direction and extends along the longitudinal direction. As shown in FIG. 2, the existing edge 25 is warped toward the one main surface 23 side. And in the state change member 20, the edge part 25 warps to the one main surface 23 side in the whole area along a longitudinal direction, and even after the said external force is removed after the state change member 20 transfers to a flat plate state, stress remains. The rest is kept flat.

  In addition, when the state changing member 20 is in a flat plate state, an external force is applied to press the intermediate portion in the width direction in the direction from the other main surface 24 toward the one main surface 23, so that the edge 25 is on the one main surface 23 side. Return from the state of warping. Thereby, the stress remaining in the state change member 20 is removed, and the state change member 20 shifts to the curved plate state. Note that when even a part of the edge 25 returns from the state of being warped toward the one main surface 23 side, the state changing member 20 tries to elastically return using the returned part as a clue. The other parts of the unit 25 are also restored sequentially. Here, in the curved plate state, the edge portion 25 is warped toward the other main surface 24 side, but it may be not warped.

  The state changing member 20 is attached to the exterior main body 30. The exterior main body 30 is in an open state that can be attached to the electric wire in a state where the state changing member 20 is in a flat plate state. At this time, the exterior body part 30 is also maintained in an open state because the state change member 20 is maintained in a flat plate state under the influence of stress. Moreover, the exterior body part 30 will be in the closed state which can maintain the state attached to the electric wire 80 in the state in which the state change member 20 exists in a curved-plate state.

  In the present embodiment, the exterior main body 30 is formed in a sheet shape. The exterior main body 30 is made of, for example, a resin such as PVC (polyvinyl chloride) or PP (polypropylene). Here, the exterior main body 30 is formed in a rectangular sheet shape. Therefore, here, the state in which the exterior main body 30 is spread in a sheet form is an open state that can be attached to the electric wire. Moreover, the state where the area | region corresponding to more than half circumference with respect to the electric wire attached among the exterior body parts 30 is a closed state which can maintain the state attached to the electric wire. Below, the direction along one pair of edge parts 31 and 32 among the exterior body parts 30 formed in the rectangular shape is referred to as a first direction D1, and the direction along the other pair of edge parts 33 and 34 is a second direction. Sometimes referred to as direction D2. Here, the exterior main body 30 is wound around the electric wire so that the first direction D1 is along the extending direction of the electric wire.

  The state changing member 20 is provided in an intermediate region in the circumferential direction of the sheet-shaped exterior body 30 wound when the sheet-shaped exterior body 30 is wound around the electric wire. More specifically, the state changing member 20 is provided in an intermediate portion along the second direction D2 of the exterior main body 30 in a state where the longitudinal direction thereof is along the second direction D2. That is, the state changing member 20 does not reach the edges 31 and 32 of the exterior main body 30. However, the state changing member may reach at least one of the edge portions 31 and 32 of the exterior main body 30.

  In addition, a plurality of state changing members 20 are provided on one exterior main body 30 at intervals along the extending direction of the electric wires. More specifically, two state change members 20 are provided at intervals along the first direction D1. However, only one state changing member 20 may be provided, or three or more state changing members 20 may be provided.

  In the present embodiment, description will be made assuming that the exterior main body 30 is composed of a single sheet-like member, and the state changing member 20 is provided on one main surface 23 of the single sheet-like member. In this case, it is conceivable that the state changing member 20 is fixed to the exterior main body 30 by, for example, a double-sided tape or an adhesive.

  When the exterior main body 30 is composed of a single sheet-like member, the state changing member 20 is attached to the exterior main body 30 with either one of the main surfaces 23 and 24 facing the exterior main body 30 side. Mounted. As will be described later, when the state change member 20 is interposed between the electric wire 80 and the exterior main body 30, an outward main surface (here, one main surface 23) in the curved plate state of the state change member 20. It is preferable to face the exterior main body 30 side.

<Electric wire with exterior member>
Next, the electric wire with an exterior member will be described. FIG. 4 is a perspective view illustrating the electric wire 100 with an exterior member according to the first embodiment. FIG. 5 is a partial cross-sectional view showing the exterior member-attached electric wire 100 according to the first embodiment.

  The exterior member-attached electric wire 100 includes an exterior member 10 and an electric wire 80. An exterior member 10 is attached around the electric wire to form an electric wire 100 with an exterior member.

  It is sufficient that at least one electric wire 80 is included. In the present embodiment, a case where the exterior member-attached electric wire 100 includes a bundle of electric wires 80 including a plurality of electric wires 80 will be described. Each electric wire 80 includes, for example, a core wire and a coating formed around the core wire. The core wire is formed in a linear shape from a conductive material such as copper, copper alloy, aluminum, or aluminum alloy. Here, the core wire has a configuration in which a plurality of strands are twisted together. But the core wire may be comprised with the single wire. The coating is formed by extruding an insulating resin material around the core wire by an extrusion device or the like. A connector or the like is connected to the end of the electric wire 80. The electric wire 80 is connected to various electric devices mounted on the vehicle or the like via a connector or the like in a state where the electric wire 80 is arranged at an arrangement target location of the vehicle or the like. And it is used as what electrically connects various electric equipments.

  Here, the exterior member 10 uses one edge 31 of the pair of edges 31 and 32 of the exterior body 30 along the first direction D1 as a winding start portion and the other edge 32 as a winding end portion. It is wound around the electric wire 80. Therefore, here, the exterior member 10 is wound around the electric wire 80 so that the other main surface 36 on the edge 31 side of the exterior body 30 and the one main surface 35 on the edge 32 face each other. Yes. Here, the exterior main body 30 is wound slightly more than one turn around the electric wire 80, but the winding amount of the exterior main body 30 may be larger or smaller. For example, the exterior main body may be wound around the electric wire 80 two or more times. In this case, the state changing member may be wound around the electric wire 80 one or more times.

  Further, here, the exterior member 10 is wound around the electric wire 80 so that the state changing member 20 provided on the one main surface 35 of the exterior body 30 is positioned on the inner peripheral side with respect to the exterior body 30. . Therefore, here, the state changing member 20 is interposed between the electric wire 80 and the exterior main body 30. Thereby, compared with the case where the state change member 20 is located on the outer peripheral side of the exterior main body 30, the outer shape of the electric wire 100 with the exterior member can be suppressed to be small.

  In order to manufacture the electric wire 100 with the exterior member, first, the electric wire 80 is disposed on the one main surface 35 side of the exterior main body 30 in a state where the exterior main body 30 is in an open state as shown in FIG. Here, the electric wire 80 is disposed so that the longitudinal direction of the electric wire 80 is along the first direction D1. At this time, the electric wire 80 may be in a state of being close to the one edge portion 31.

  Next, the state changing member 20 in the flat plate state is changed to the curved plate state. As described above, by applying an external force so as to eliminate the warpage of the state change member 20 in the flat plate state, the stress remaining in the state change member 20 is removed, and the state change member 20 in the flat plate state becomes the curved plate. Change state to state. As a result, the exterior main body 30 is shifted from the open state to the closed state, and the exterior main body 30 is attached to the electric wire 80. At this time, when the state changing member 20 is sequentially shifted from the portion located on the one edge 31 side of the exterior body portion 30 to the curved plate state, the exterior body portion 30 starts winding the one edge portion 31. It is wound around the electric wire 80 as a part.

  But the exterior member 10 may be wound around the electric wire 80, as shown in FIG. More specifically, the exterior member 10 is configured such that both the edge portions 31 and 32 are outward from the wound portion while the intermediate region between both the edge portions 31 and 32 of the exterior body portion 30 is wound around the electric wire 80. It protrudes. And both the edge parts 31 and 32 are made into the state which faced one main surface 35 mutually.

  According to the exterior member 10 and the electrical wire 100 with the exterior member, with the state change of the state change member 20, an open state in which the exterior body 30 can be attached to the wire 80 and a closed state in which the state attached to the wire 80 can be maintained. Change state between. For this reason, after arrange | positioning the electric wire 80 to the exterior main body part 30 in an open state, the exterior member 10 can be easily attached to the circumference | surroundings of the electric wire 80 by shifting to a closed state.

  In addition, the state of the sheet-like exterior main body 30 can be changed between a state in which the sheet-like exterior main body 30 is spread in a sheet shape and a state in which the sheet-like exterior body portion 30 is wound around the electric wire 80. Thereby, the sheet-like exterior main body 30 can be easily wound around the electric wire 80.

  Further, since the state changing member 20 is provided in an intermediate region in the circumferential direction of the exterior main body 30, the edges 31 and 32 extending along the extending direction of the electric wire 80 in the exterior main body 30 are the same. The main surfaces 35 can face each other and be stacked.

  Further, since a plurality of state change members 20 are provided at intervals along the extending direction of the electric wires 80, even when the dimension along the extending direction of the electric wires 80 in the exterior main body 30 is large, the state changing member It can suppress that 20 becomes large. Moreover, the exterior member 10 can be mass-produced by cutting out a desired dimension from a long exterior member.

  Moreover, the exterior member 10 is maintained in the state wound around the electric wire 80 when closed. For this reason, the double-sided tape for maintaining the state which wound the exterior member 10 around the electric wire 80 is omissible. Thereby, the operation | work which peels the release paper provided in a double-sided tape can be skipped. As a result, a relatively large space necessary for peeling the release paper can be omitted. Moreover, the possibility that the release paper is mixed into the product can be suppressed. Moreover, when it is not correctly mounted, it can be easily redone.

{Second Embodiment}
Next, the exterior member and the electrical wire with the exterior member according to the second embodiment will be described. FIG. 7 is a perspective view showing an electric wire 100A with an exterior member according to the second embodiment. 8 and 9 are partial cross-sectional views showing an exterior member 10A according to the second embodiment. FIG. 8 shows a state where the exterior main body 30A is in a closed state. FIG. 9 shows a state where the exterior main body 30A is in an open state. In the description of the present embodiment, the same components as those described above are denoted by the same reference numerals, and description thereof is omitted.

  The exterior member 10A and the exterior member-attached electric wire 100A according to the present embodiment are different in the shape of the exterior body part 30A from the shapes of the exterior member 10 and the exterior body part 30 of the exterior member-attached electric wire 100 according to the embodiment.

  The exterior main body 30A is formed in a tube shape. That is, the exterior main body 30A has a tube shape without the state changing member 20A. The exterior main body 30A is formed, for example, by extrusion molding using a resin or the like as a material. Further, for example, it may be formed of a woven fabric in which yarns made of resin or the like are woven or a nonwoven fabric in which yarns made of resin or the like are gathered non-uniformly. A slit 37 extending along the axial direction is formed in the exterior main body 30A. Therefore, here, as shown in FIG. 8, when the slit 37 is in the closed state, the exterior body 30A is closed. Further, as shown in FIG. 9, when the exterior main body 30A is split open by the slit 37, the exterior main body 30A is opened. At this time, similarly to the exterior member 10 according to the embodiment, when the state change member 20A is in a flat plate state, the exterior body portion 30A is in an open state, and when the state change member 20A is in a curved plate state, the exterior body portion 30A is closed. It becomes a state.

  The state change member 20A may be provided at a position opposite to the slit 37 in the circumferential direction. Thereby, the opening amount of the slit 37 becomes large compared with the case where 20 A of state change members which have the same length dimension are provided in the side close | similar to the slit 37 in the circumferential direction. Here, when the length of the state changing member 20A is increased, the opening amount of the slit 37 when the state changing member 20A is in a flat plate state and the exterior member 10A is opened is increased. It becomes easy to insert into the main body 30A. On the other hand, when the length of the state changing member 20A is increased, the opening amount of the slit 37 is reduced when the state changing member 20A is in a flat plate state and the exterior member 10A is opened, and the state can be changed with a small external force. It becomes. For this reason, the length dimension of the state change member 20A may be set in consideration of the workability of inserting the electric wire 80 from the opened slit 37 and the workability of splitting the exterior member 10A with the slit 37. .

  Further, the state changing member 20A may be provided on the inner peripheral side with respect to the exterior main body 30A.

  According to the exterior member 10 </ b> A and the exterior member-attached electric wire 100 </ b> A according to the present embodiment, the state of the tubular exterior body portion 30 </ b> A can be changed between a state where the slit 37 is opened and a state where it is closed. Thereby, the tube-shaped exterior main body 30 </ b> A can be easily attached around the electric wire 80.

{Modifications}
In 1st Embodiment, it is also considered that an exterior body part is comprised by the several sheet-like member and the state change member 20 is pinched | interposed into the several sheet-like member. In this case, when attaching the state change member 20 to the sheet-like member, the state change member 20 and the sheet-like member may be bonded together as in the first embodiment, or the state change member among a plurality of sheet-like members. You may join the part containing 20 outer edge periphery. Similarly, in the second embodiment, it is also conceivable that the exterior main body portion is composed of a plurality of tubular members, and the state changing member 20 is sandwiched between the plurality of tubular members.

  Moreover, the member which fastens the edge part of the exterior member 10 in a closed state in the electric wires 100 and 100A with the exterior member according to each embodiment may be provided.

  In addition, each structure demonstrated by said each embodiment and each modification can be suitably combined unless it mutually contradicts.

  As described above, the present invention has been described in detail. However, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Exterior member 20 State change member 30 Exterior body part 37 Slit 80 Electric wire 100 Electric wire with an exterior member D1 1st direction D2 2nd direction

Claims (6)

It is formed so that the state can be changed between a flat plate state and a curved plate state, and an external force is applied in the state of the curved plate state to shift to the flat plate state, and after the transition to the flat plate state, the external force is removed. In the state where the stress remains in the flat plate state, the state change member that shifts to the curved plate state by applying an external force in the state of the flat plate and removing the stress,
The state changing member is attached, the state changing member is in an open state that can be attached to the electric wire in the flat plate state, and the state changing member is attached to the electric wire in the state of the curved plate state. An exterior body part that is in a maintainable closed state;
An exterior member. The exterior member according to claim 1,
The exterior body part is an exterior member formed in a sheet shape. The exterior member according to claim 2,
The said state change member is an exterior member provided in the intermediate area | region in the circumferential direction of the said exterior body part. The exterior member according to claim 1,
An exterior member, wherein the exterior body part is formed in a tube shape, and the exterior body part is formed with a slit extending along an axial direction. The exterior member according to any one of claims 1 to 4,
The said state change member is an exterior member provided with two or more intervals along the extension direction of the said electric wire. The exterior member according to any one of claims 1 to 5,
An electric wire to which the exterior member is attached;
An electric wire with an exterior member.

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