JP7508100B2 - Wire End Cover - Google Patents

Description

This disclosure relates to a wire end cover that is attached to the end of an electric wire.

The ends of high-voltage insulated electric wires are protected by covering them with electric wire end covers to ensure electrical insulation. For example, Patent Document 1 discloses one such technique, an electric wire end cover that can be attached by inserting it through an opening.

JP 2003-143745 A

It is desirable for the wire end cover to be firmly fixed to the wires in order to effectively prevent the wire end cover from falling off.
An object of the present disclosure is to propose a wire end cover that can effectively prevent the wire from falling off.

One aspect of the present disclosure is an electric wire end cover that is attached to the end of an electric wire, and includes a first component and a second component. The second component is connected to the first component by a predetermined rotation shaft so as to be freely opened and closed. The first component includes a semi-cylindrical storage section capable of storing the end of the electric wire. The second component includes a lid section. In a closed state in which the first component and the second component are closed, the storage section and the lid section are configured to form a cylindrical holding section capable of holding the electric wire.

With this configuration, the first and second components are closed to sandwich and hold the electric wire firmly. This effectively prevents the electric wire end cover from falling off the electric wire.

In the above-mentioned electric wire terminal cover, the contact area of the lid portion that contacts the electric wire in the closed state may have a shape with a curvature smaller than the curvature of the outer periphery of the electric wire having a diameter that can be held by the cylindrical holding portion, or may have a shape that protrudes toward the storage portion.

With this configuration, the contact area of the lid is pressed firmly against the wire. This allows the wire to be tightly clamped, effectively preventing the wire end cover from falling off the wire.

In the above-described electric wire end cover, the contact area may be substantially flat, so that the contact area can be pressed firmly against the electric wire.
In the above-mentioned electric wire end cover, the cover part may be configured such that the abutment region moves to a position spaced apart from the housing part when the first and second components are opened. When the first and second components are opened, the electric wire can be housed in the housing part, and the cover part may have a range limiting part that limits the range of the rotation angle between the first and second components so that the electric wire does not erroneously enter between the housing part and the cover. With such a configuration, when attaching the electric wire end cover to the electric wire, the electric wire can be easily housed in the housing part, and a decrease in workability can be suppressed.

In the above-mentioned electric wire terminal cover, the first component may have a plurality of housing sections corresponding to the diameters of a plurality of electric wires. The plurality of housing sections may be arranged in series along the axial direction of the electric wires to be housed, and may be arranged so that at least a portion of the bottom surface of two adjacent housing sections is smoothly connected.

With this configuration, the same wire end cover can be used for wires of different diameters. Also, there is no need to change the installation procedure depending on the diameter of the wire, and the cover can be installed using the same installation procedure. In addition, since there is a part that smoothly connects adjacent housing sections, it is easier to slide the ends of the wires, making the installation procedure easier.

In the above-mentioned electric wire terminal cover, one of the first and second components may have a through hole formed therein, and the other, which is different from the first component, may have a locking portion formed therein that is inserted into the through hole and locks onto the edge of the through hole, so that the closed state is maintained by the locking portion locking onto the edge of the through hole. Furthermore, the above-mentioned one may have a protective portion formed at a position opposite to the other, surrounding the through hole, and having an opening at the end on the opening side of the electric wire terminal cover.

This configuration can prevent the locking portion from coming off unexpectedly, and can better maintain the closed state. In addition, because it opens in the same direction as the opening side of the electric wire terminal cover, when water gets in due to rain or the like, it does not prevent water from draining out of the electric wire terminal cover, and therefore prevents water from remaining inside the electric wire terminal cover.

FIG. 2 is a perspective view showing the wire end cover in a closed state according to the embodiment. FIG. 2A is a perspective view showing an electric wire terminal cover in an open state according to the embodiment, and FIG. 2B is a perspective view seen from a different viewpoint than FIG. 2A. FIG. 2 is an exploded perspective view of a first structure and a second structure. FIG. 4A is a front view showing the wire end cover in a closed state, FIG. 4B is a plan view showing the wire end cover, FIG. 4C is a rear view showing the wire end cover, and FIG. 4D is a bottom view showing the wire end cover. FIG. 5A is a left side view showing the electric wire end cover, and FIG. 5B is a right side view showing the electric wire end cover. 6A is an end view taken along the VIA-VIA cross section of FIG. 4A, FIG. 6B is an end view taken along the VIB-VIB cross section of FIG. 4A, and FIG. 6C is an end view taken along the VIC-VIC cross section of FIG. 4A. 11A and 11B are diagrams illustrating a rotational operation between a first structure and a second structure. 13 is a diagram illustrating a state in which the first structure and the second structure are fully opened. FIG. 9A and 9B are schematic end views showing modified examples of the lid portion. 13A and 13B are diagrams illustrating a modified example of the lid portion and an example of a contact region.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.
1. Embodiment
[1-1. Configuration of wire end cover]
1 to 5B show the electric wire end cover 1 of this embodiment. The electric wire end cover 1 is attached to the end of an electric wire to suppress electric leakage from the end of the electric wire. The electric wire end cover 1 is formed of an insulating material such as synthetic resin. The electric wire referred to here is an electric wire covered with an insulator, and includes a high-voltage insulated electric wire used by hanging it on a utility pole.

The electric wire terminal cover 1 comprises a first component 100 and a second component 200. The first component 100 and the second component 200 are connected by a predetermined rotation shaft so as to be freely opened and closed. The electric wire terminal cover 1 is configured to be capable of transitioning between a closed state in which the first component 100 and the second component 200 are closed as shown in FIG. 1, and an open state in which the first component 100 and the second component 200 are open as shown in FIGS. 2A-2B.

The first component 100 has a housing portion 110, an extension portion 120, a shaft support piece 130, a rib 140, a protruding piece 150, a first protrusion 160, and the like.
The accommodation section 110 includes a first accommodation section 111, a second accommodation section 112, and a third accommodation section 113. When referring to these three accommodation sections 111-113 without distinction, they will be simply referred to as accommodation section 110.

The storage section 110 is semi-cylindrical and configured to be able to store the end of an electric wire. As clearly shown in FIG. 2B and FIG. 5A, the first storage section 111, the second storage section 112, and the third storage section 113 are semi-cylindrical with different inner diameters and suitable for storing different diameters of electric wires. The inner wall surface of the bottom surface of the storage section 110 is formed with multiple protrusions 114 with pointed tips that point toward the inside of the storage section 110. The bottom surface of the storage section 110 is the surface located at the back when viewed from the opening side where the first component 100 and the second component 200 open.

The three accommodating sections 111-113 are arranged in series along the axial direction of the wires to be accommodated, and are arranged so that a portion of the bottom surface of two adjacent accommodating sections is smoothly connected. In other words, the deepest portions of the bottom surfaces of the first accommodating section 111 and the second accommodating section 112 are connected without any steps, and similarly, the deepest portions of the bottom surfaces of the second accommodating section 112 and the third accommodating section 113 are connected without any steps. As a result, at least a portion of the bottom surfaces of the three accommodating sections 111-113 are located on the same plane as shown in FIG. 5A, and at least a portion of the bottom surfaces are arranged in a straight line. The above-mentioned protrusion 114 is arranged in the above-mentioned straight portion of the bottom surface of the accommodating section 110.

As shown in FIG. 2B, the extension 120 is a portion that spreads from the end of the housing 110, and has a flat portion and a groove 121 that extends in the direction in which the three housings 111-113 are arranged (hereinafter also referred to as the axial direction). The groove 121 is a V-shaped groove, and three through holes 122 are formed in the wall surface located on the side farther from the housing 110. The extension 120 also has three protective portions 123 that are provided on the opposite side to the second component 200 in the closed state and surround the three through holes 122. The protective portions 123 are rectangular tube-shaped and have an opening at the end on the opening side of the wire terminal cover 1. The opening side of the wire terminal cover 1 here means the side that opens (moves far apart) when the first component 100 and the second component 200 change from the closed state to the open state. As shown in FIG. 2A, four axially extending protrusions are formed on the outer wall surface of the protective portion 123. Of the four protrusions, the two central protrusions protrude less than the two outer protrusions.

As shown in FIG. 3, the shaft support pieces 130 are tongue-shaped portions provided at both ends of the first component 100 in the axial direction. The two shaft support pieces 130 extend from near the bottom of the above-mentioned storage section 110. The two shaft support pieces 130 have through holes 131 formed therein.

As shown in FIG. 3, the rib 140 connects the wall surface of the groove 121 located on the side closer to the storage section 110 to the storage section 110. The rib 140 is provided for each of the first storage section 111, the second storage section 112, and the third storage section 113.

The protruding piece 150 is provided on the outer wall surface of the first structure 100, and has a length in the axial direction. The protruding piece 150 is formed mainly for the purpose of increasing the creepage distance.
The first protrusions 160 are protrusions provided on the outer wall surface of the first component 100 in the vicinity of the two shaft support pieces 130 .

The second structure 200 includes a cover portion 210 , a flat portion 220 , a shaft portion 230 , a protruding piece 240 , a locking portion 250 , a rib 260 , and a pressing portion 270 .
The lid portion 210 is a portion that covers at least a portion of the opening of the storage portion 110 in the closed state. The lid portion 210 includes a first lid portion 211, a second lid portion 212, and a third lid portion 213. When referring to the three lid portions without distinction, they will be simply referred to as the lid portion 210. In the closed state, the storage portion 110 and the lid portion 210 form a cylindrical holding portion capable of holding an electric wire. The cylindrical holding portion will be described in detail later.
The cover 210 has a groove 214 that has a length in the axial direction and protrudes outward. The groove 214 receives the protruding piece 150 in the closed state.

As shown particularly in FIG. 3, the planar portion 220 is a portion that spreads out from the end of the lid portion 210. The planar portion 220 has a protruding piece 240 and three locking portions 250 on the surface that faces the first structure 100 in the closed state. In addition, three pressing portions 270 are provided on the back side of the three locking portions 250 on the planar portion 220.

The shaft portion 230 has a rod-like length and is provided with insertion portions 231 on both ends. The shaft portion 230 is arranged so as to be sandwiched between two shaft support pieces 130, and at this time, the two insertion portions 231 fit into the through holes 131 of the two shaft support pieces 130. The first component 100 and the second component 200 rotate relatively around the through hole 131 and the insertion portions 231 as the center of rotation, transitioning between an open state and a closed state. The axial direction of this rotation is the direction in which the three storage portions 111-113 described above are arranged, i.e., the same direction as the axis of the stored electric wire 3.

Two second protrusions 232 are provided on the side surfaces near both ends of the shaft portion 230. The second protrusions 232 abut against the first protrusions 160, thereby limiting the angular range of rotation between the first construct 100 and the second construct 200. In Figures 2A-2B, the first protrusions 160 and the second protrusions 232 are abutting, that is, the first construct 100 and the second construct 200 are in the widest open state.

The protruding piece 240 is provided on the flat portion 220 and has a length in the axial direction. The protruding piece 240 is formed mainly for the purpose of increasing the creepage distance.
The three locking portions 250 are inserted into the three through holes 122 and lock onto the edges of the through holes 122. The locking portions 250 lock onto the edges of the through holes 122, thereby maintaining the closed state.

The three ribs 260 extend from the shaft portion 230 to the pressing portion 270. The ribs 260 are provided for each of the first lid portion 211, the second lid portion 212, and the third lid portion 213.
The three pressing portions 270 are each composed of four protrusions extending in the axial direction. Of the four protrusions, the two central protrusions have smaller protrusion amounts than the two outer protrusions. The pressing portions 270 are disposed on the rear side of the locking portion 250.

[1-2. Cylindrical holding part]
The cylindrical holding portion of the electric wire end cover 1 will be described with reference to Figures 6A-6C. Figures 6A-6C are all end views in the closed state. Three cylindrical holding portions are formed in the electric wire end cover 1. The first cylindrical holding portion 301 is formed by the first housing portion 111 and the first lid portion 211. The second cylindrical holding portion 302 is formed by the second housing portion 112 and the second lid portion 212. The third cylindrical holding portion 303 is formed by the third housing portion 113 and the third lid portion 213. The areas of the three lid portions 211-213 that come into contact with the electric wire 3 in the closed state are referred to as contact areas 211a, 212a, and 213a, respectively. All of these contact areas 211a-213a are planar and extend along the axial direction.

The electric wire 3a that can be held by the first cylindrical holding portion 301, the electric wire 3b that can be held by the second cylindrical holding portion 302, and the electric wire 3c that can be held by the third cylindrical holding portion 303 each have a different diameter. The electric wire 3a that can be held by the first cylindrical holding portion 301 here is an electric wire that fits into the first storage portion 111 and has a diameter that always abuts against the abutment area 211a in the closed state. If the electric wire 3a does not abut against the abutment area 211a and, as a result, the electric wire 3a is not securely sandwiched between the first storage portion 111 and the first lid portion 211, the risk of the electric wire falling out of the first cylindrical holding portion 301 increases. Therefore, the first cylindrical holding portion 301 cannot hold an electric wire that does not always abut against the abutment area 211a. The same is true for the electric wire 3b that can be held by the second cylindrical holding portion 302, and the electric wire 3c that can be held by the third cylindrical holding portion 303. In Figures 6A-6C, the electric wire 3 and the lid portion 210 are shown as crossing each other. However, in reality, the electric wire 3 is compressed by the lid portion 210, and the lid portion 210 is pressed outward by the electric wire 3, so that the second structure 200 elastically deforms outward with the lid portion 210 at the center.

The first cylindrical holding part 301 holds the electric wire 3a in a state where it is slightly above the bottom of the first storage part 111 due to the presence of the protrusion 114. The first lid part 211 presses the electric wire 3a toward the bottom side of the first storage part 111. Since the contact area 211a is flat as described above, the electric wire 3a is pressed over a smaller area than when the contact area is curved with the same curvature as the outer periphery of the electric wire 3a. Therefore, the dispersion of the pressing force is suppressed, and the influence of the variation in the outer periphery shape of the electric wire 3a is suppressed, and the electric wire 3a can be pressed with a stable and strong force. The same is true for the second cylindrical holding part 302 and the third cylindrical holding part 303.

Also, as shown in FIG. 7 for the second cylindrical holding part 302, the second lid part 212 moves from the side of the opening toward the opening of the second storage part 112, as indicated by the arrow in the figure. Therefore, just before the closed state is reached, the abutment area 212a slides to push the surface of the electric wire 3b toward the second storage part 112. The same is true for the first cylindrical holding part 301 and the third cylindrical holding part 303.

[1-3. Effects]
According to the embodiment described above in detail, the following effects can be obtained.
(1a) In the above-described electric wire end cover 1, since the contact area of the lid portion 210 is flat, the contact area is strongly pressed against the electric wire 3. Therefore, the electric wire can be firmly clamped, and the electric wire end cover 1 can be effectively prevented from falling off the electric wire 3.

(1b) In the electric wire end cover 1, the contact area of the lid part 210 approaches and presses against the contact portion of the electric wire 3 from the side. If the contact area had a large protrusion, the protrusion would come into contact with the surface of the electric wire 3 and prevent the smooth movement of the lid part 210. However, because the contact area is flat, it smoothly slides over the surface of the electric wire 3 and can easily transition to the closed state.

(1c) The wire end cover 1 is provided with three cylindrical holding portions (301, 302, 303). Therefore, the same wire end cover 1 can be used for wires of different thicknesses. In addition, since the three accommodating portions 111-113 are arranged in series along the axial direction of the wire 3 to be accommodated, the wire can be accommodated in the appropriate accommodating portion according to the wire simply by changing the insertion depth of the wire 3. Therefore, the wire end cover 1 can be attached by the same installation operation regardless of the thickness of the wire.

Of the three storage sections 111-113, two adjacent storage sections are arranged so that a portion of their bottom surfaces is smoothly connected. This reduces the step between the multiple storage sections 110 arranged in series, making it easier for the end of the electric wire 3 to slide on the bottom surface of the storage section 110, facilitating the installation operation.

[1-4. Other features of the embodiment]
The rotation axis (through hole 131 and insertion portion 231) about which the first constituent 100 and the second constituent 200 rotate is located near the bottom of the storage portion 110. In other words, the rotation axis is located away from the contact areas 211a-213a. Therefore, when the first constituent 100 and the second constituent 200 open and close, the contact areas 211a-213a move significantly in the circumferential direction centered on the rotation axis. When the first constituent 100 and the second constituent 200 open, the contact areas 211a-213a of the lid portion 210 move to a position spaced apart from the storage portion 110, as shown in FIGS. 2A-2B, 6A-6C, and the like.

As described above, the rotation angle at the maximum opening is controlled by the first protrusion 160 and the second protrusion 232. As shown in FIG. 8, when the first structure 100 and the second structure 200 are open, the electric wire 3 can be accommodated in the accommodating section 110 (white arrow in FIG. 8). On the other hand, since the gap between the accommodating section 110 and the lid section 210 is small, the electric wire 3 cannot move through the gap (broken arrow in FIG. 8). If the range of the rotation angle is not limited by the first protrusion 160 and the second protrusion 232, the lid section 210 may open to a larger rotation angle. In that case, the space between the wall surface of the accommodating section 110 and the lid section 210 becomes large, so that when trying to accommodate the electric wire 3, the electric wire may mistakenly enter the space, and in that case, the workability of installing the electric wire terminal cover 1 is reduced. However, with the above-mentioned electric wire end cover 1, when attaching the electric wire end cover 1 to the electric wire 3, the risk of the electric wire 3 accidentally entering the above-mentioned gap is reduced, making it easier to correctly accommodate the electric wire 3 in the accommodation portion 110, and reducing the deterioration of workability. Note that the first protrusion 160 and the second protrusion 232 correspond to a range limiting portion that limits the range of the rotation angle between the first component 100 and the second component 200.

In addition, the protective portion 123 and the pressing portion 270 are provided in the portion where the through hole 122 and the locking portion 250 are provided. Therefore, when transitioning from the open state to the closed state, the protective portion 123 and the pressing portion 270 can be pinched by hand to lock the locking portion 250 on the edge of the through hole 122. The protective portion 123 and the pressing portion 270 have multiple protrusions on the portion pressed by the finger, making it difficult for the finger to slip. In addition, the pressing portion 270 improves the strength around the locking portion 250, suppressing deformation of the locking portion 250 and suppressing the locking portion 250 from unintentionally coming off the through hole 122. In addition, the protective portion 123 suppresses any object from coming into contact with the locking portion 250 locked on the edge of the through hole 122 from the outside of the electric wire terminal cover 1. Therefore, the protective portion 123 prevents the locking portion 250 from unintentionally coming out of the through hole 122.

In addition, because the opening of the protective part 123 opens in the same direction as the opening side of the electric wire terminal cover 1, when water enters due to rain or the like, the protective part 123 does not prevent the water from draining out of the electric wire terminal cover 1, so water is prevented from remaining inside the electric wire terminal cover 1.

2. Other embodiments
Although the embodiments of the present disclosure have been described above, it goes without saying that the present disclosure is in no way limited to the above-described embodiments, and can take various forms as long as it falls within the technical scope of the present disclosure.

(2a) In the above embodiment, the contact areas (211a, 212a, 213a) are shown to be planar. However, the contact areas are not particularly limited as long as they have a shape with a curvature smaller than the curvature of the outer periphery of the electric wire having a diameter that can be held by the cylindrical holding portion (301, 302, 303) or a shape that protrudes toward the housing portion. The shape here refers to the shape of a cross section cut by a plane perpendicular to the axial direction.

The cover 401 shown in FIG. 9A has an abutment area 401a with a curvature smaller than that of the outer periphery of the electric wire 3. In other words, the abutment area 401a has a radius of curvature R larger than the radius of curvature R of the outer periphery of the electric wire 3. The abutment area 401a has a smaller curvature than the outer periphery of the electric wire 3. The abutment area with a smaller curvature than the outer periphery of the electric wire 3 may be explained as follows. The abutment area is closer to a flat surface than a curved surface with the same curvature as the outer periphery of the electric wire 3, and as a result, the area of contact when pressed against the electric wire 3 is smaller than that of the curved surface. In other words, a wide abutment area is included where the contact area is effectively smaller due to the surface shape of the abutment area.

The cover 501 shown in FIG. 9B is configured so that the contact area 501a protrudes toward the electric wire 3. With this configuration, the area of the contact area 501a that contacts the electric wire 3 can be made smaller.

The contact area does not have to be a smooth surface. For example, as shown in FIG. 10, the cover 601 may have an uneven surface 602 on which multiple tiny protrusions are formed, and the uneven surface 602 may serve as the contact area 601a. In such a case, the tip portions of the tiny protrusions, i.e., a virtual surface including multiple portions that contact the electric wire 3, may be regarded as the contact area 601a. Note that a substantially planar contact area includes not only a plane with a curvature substantially close to zero, but also a contact area in which the above-mentioned virtual surface is a substantially planar surface.

(2b) In the above embodiment, the first protrusion 160 and the second protrusion 232 are exemplified as examples of the range limiting portion, but the configuration of the range limiting portion is not limited to this. For example, the position of the above-mentioned protrusion may be provided at a position away from the shaft portion 230. Also, various types of stoppers may be used to limit the range of the rotation angle between the first construct 100 and the second construct 200. Also, the first construct 100 and the second construct 200 may be configured to directly abut the wall surfaces thereof to limit the range of the rotation angle. In that case, the abutting portion corresponds to the range limiting portion. Note that the range limiting portion does not have to be provided.

(2c) In the above embodiment, the first structure 100 has three housing sections (111, 112, 113) capable of housing electric wires 3 of different diameters, and three cylindrical holding sections are formed in the closed state. However, the number of housing sections, i.e., the number of cylindrical holding sections, may be one or two, or may be four or more.

In the above embodiment, the three accommodating sections are arranged in series along the axial direction of the wires to be accommodated, and at least a portion of the bottom surfaces of two adjacent accommodating sections is smoothly connected. However, when there are multiple accommodating sections, the accommodating sections do not necessarily have to be arranged in series. Furthermore, the bottom surfaces of two adjacent accommodating sections do not necessarily have to have a smoothly connected portion. The smoothly connected portion here includes a portion where at least a portion of the bottom surfaces of the two accommodating sections are connected without any steps, and a portion where the two accommodating sections are connected by an inclined surface with a gradual change in inclination angle.

(2d) In the above embodiment, a configuration in which the closed state is maintained by the locking portion 250 being locked to the edge of the through hole 122 is exemplified. However, the specific locking mechanism for maintaining the closed state is not particularly limited, and various known configurations may be adopted. Furthermore, the protective portion 123 does not have to be provided. Furthermore, if the protective portion 123 is provided, its opening does not have to be on the opening side of the first structure 100 and the second structure 200.

(2e) The electric wire terminal cover 1 of the present disclosure is merely an example, and the specific shape can be changed in various ways using known technology. The specific shapes of the first component 100 and the second component 200 are not particularly limited, and for example, the ribs (140, 260) and the protrusions 114 may not be provided, or may be provided in positions different from those in the embodiment. In addition, the configuration of the rotation shaft for rotatably connecting the first component 100 and the second component 200 may be a configuration other than the configuration illustrated. In addition, the through hole 122 may be provided in the second component 200, and the locking portion 250 may be provided in the first component 100.

In the above embodiment, the cover portions 211-213 each have a constant cross-sectional shape in the axial direction, and a configuration in which a contact area that contacts the electric wire 3 is formed over a wide range in the axial direction is exemplified. However, a configuration in which the cover portions contact the electric wire 3 only over a portion of the axial direction may also be used. In such a configuration, the contact area may have the characteristics of the contact area of the present disclosure described above.

(2f) The functions of one component in the above embodiments may be distributed among multiple components, or the functions of multiple components may be integrated into one component. In addition, part of the configuration of the above embodiments may be omitted. In addition, at least part of the configuration of the above embodiments may be added to or substituted for the configuration of another of the above embodiments.

1...wire end cover, 3, 3a, 3b, 3c...wire, 100...first component, 110...accommodation section, 111...first accommodation section, 112...second accommodation section, 113...third accommodation section, 114...projection, 120...extension, 121...groove section, 122, 131...through hole, 123...protection section, 130...shaft support piece, 140, 260...rib, 150, 240...projection piece, 160...first projection, 200...second component, 210, 401 , 501, 601... lid portion, 211... first lid portion, 211a, 212a, 213a, 401a, 501a, 601a... abutment area, 212... second lid portion, 213... third lid portion, 214... groove portion, 220... flat portion, 230... shaft portion, 231... insertion portion, 232... second protrusion, 250... locking portion, 270... pressing portion, 301... first cylindrical holding portion, 302... second cylindrical holding portion, 303... third cylindrical holding portion, 602... uneven surface

Claims (7)

A wire end cover to be attached to an end of a wire,
A first component and a second component connected to the first component by a predetermined rotation shaft so as to be openable and closable,
The first structure includes a semi-cylindrical housing portion capable of housing an end of the electric wire,
The second structure includes a lid portion,
In a closed state in which the first structure and the second structure are closed, the storage portion and the lid portion form a cylindrical holding portion capable of holding the electric wire ,
The first structure has a plurality of the accommodating portions corresponding to a plurality of diameters of the electric wires,
The wire terminal cover , wherein the multiple accommodating sections are arranged in series along the axial direction of the wires to be accommodated, and are arranged so that at least a portion of the bottom surfaces of two adjacent accommodating sections are smoothly connected . 2. The wire end cover according to claim 1 ,
a through hole is formed in one of the first structure and the second structure, and a locking portion is formed in the other structure that is different from the one structure and is inserted into the through hole and locks onto an edge of the through hole, and the closed state is maintained by the locking portion locking onto the edge of the through hole,
Furthermore, the one of the wire end covers has a protective portion provided at a position opposite to the other of the wire end covers, surrounding the through hole, and having an opening at an end portion on the opening side of the wire end cover. A wire end cover to be attached to an end of a wire,
A first component and a second component connected to the first component by a predetermined rotation shaft so as to be openable and closable,
The first structure includes a semi-cylindrical housing portion capable of housing an end of the electric wire,
The second structure includes a lid portion,
In a closed state in which the first structure and the second structure are closed, the storage portion and the lid portion form a cylindrical holding portion capable of holding the electric wire ,
a through hole is formed in one of the first structure and the second structure, and a locking portion is formed in the other structure that is different from the one structure and is inserted into the through hole and locks onto an edge of the through hole, and the closed state is maintained by the locking portion locking onto the edge of the through hole,
Furthermore, the one of the wire end covers has a protective portion provided at a position opposite to the other of the wire end covers, surrounding the through hole, and having an opening at an end portion on the opening side of the wire end cover . The electric wire end cover according to any one of claims 1 to 3 ,
An electric wire terminal cover, wherein a contact area of the lid portion that contacts the electric wire in the closed state has a shape with a curvature smaller than the curvature of the outer edge of an electric wire having a diameter that can be held by the cylindrical holding portion, or has a shape that protrudes toward the accommodating portion. 5. The wire end cover according to claim 4 ,
the lid portion is configured such that, when the first component and the second component are opened, the abutment region moves to a position spaced apart from the accommodation portion;
an electric wire terminal cover having a range limiting portion that limits a range of a rotation angle between the first component and the second component so that the electric wire can be accommodated in the accommodating portion when the first component and the second component are open and the electric wire does not erroneously get between the accommodating portion and the lid portion. A wire end cover to be attached to an end of a wire,
A first component and a second component connected to the first component by a predetermined rotation shaft so as to be openable and closable,
The first structure includes a semi-cylindrical housing portion capable of housing an end of the electric wire,
The second structure includes a lid portion,
In a closed state in which the first structure and the second structure are closed, the storage portion and the lid portion form a cylindrical holding portion capable of holding the electric wire ,
a contact area of the lid portion that contacts the electric wire in the closed state has a shape that has a curvature smaller than a curvature of an outer periphery of an electric wire having a diameter that can be held by the cylindrical holding portion, or a shape that protrudes toward the storage portion,
the lid portion is configured such that, when the first component and the second component are opened, the abutment region moves to a position spaced apart from the accommodation portion;
an electric wire terminal cover having a range limiting portion that limits a range of a rotation angle between the first component and the second component so that the electric wire can be accommodated in the accommodating portion when the first component and the second component are open and the electric wire does not erroneously get between the accommodating portion and the lid portion . The electric wire end cover according to any one of claims 4 to 6 ,
The contact area is generally planar.

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