Electric wire protection member
The retractable partition in the wire protection member addresses the fixed partitioning issue by allowing adjustable separation of electric wires, ensuring smooth insertion and preventing contact, even with varying wire quantities or diameters.
Patent Information
- Application Number
- JP2024090406
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-12-16
Smart Images

Figure 2025182795000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a wire protection member. [Background technology]
[0002] Conventionally, a wire protection member includes a main body portion that is placed in a hole in an installation member through which multiple types of electric wires are inserted, and an insertion portion that is provided in the main body portion and through which the multiple types of electric wires are inserted. Also known is a wire protection member that includes a separator that is provided in the insertion portion and serves as a partition that divides the insertion portion so that different types of electric wires can be inserted (see Patent Document 1). In this wire protection member, different types of electric wires are inserted into multiple sections of the insertion portion that are divided by the separator. By dividing the insertion portion into different types of electric wires, different types of electric wires do not come into contact with each other within the insertion portion. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Publication No. 11-150844 Summary of the Invention [Problem to be solved by the invention]
[0004] However, in the wire protection member of Patent Document 1, the partitioning portion is formed from a single member that is continuous with the insertion portion, so the partitioning portion cannot change the partitioning of the insertion portion. Therefore, for example, when one type of electric wire is to be inserted into the insertion portion, the partitioning portion reduces the opening area of the insertion portion, and if the number of electric wires or the diameter of the electric wires increases, there is a possibility that the electric wires cannot be inserted into the insertion portion.
[0005] The present invention has been made in view of the problems inherent in the prior art, and an object of the present invention is to provide a wire protection member in which the partitioning portion of the insertion portion can be changed. [Means for solving the problem]
[0006] The wire protection member of this embodiment comprises a main body portion that is placed in a hole in an installation member through which multiple types of electric wires are inserted, an insertion portion that is provided on the main body portion and through which the multiple types of electric wires are inserted, and a partition portion that is placed in the insertion portion and divides the insertion portion so that different types of electric wires can be inserted, and the partition portion is arranged so that it can be retracted into the insertion portion. [Effects of the Invention]
[0007] According to the present invention, it is possible to provide a wire protection member in which the partition of the insertion portion by the partition portion can be changed. [Brief explanation of the drawings]
[0008] [Figure 1] FIG. 2 is a perspective view of the wire protection member according to the embodiment when the partitioning portion is in the pulled-out position. [Figure 2] FIG. 10 is a perspective view of the wire protection member according to the embodiment when the partitioning portion is placed in a standby position. [Figure 3] 10 is a perspective view of the wire protection member according to the embodiment when the partition portion is disposed in the drawn-out position and assembled to the installation member. FIG. [Figure 4] 10 is a perspective view of the wire protection member according to the embodiment when the partitioning portion is placed in the standby position and the assembled high-power electric wire is placed on the installation member. FIG. [Figure 5] 10 is a perspective view of the wire protection member according to the embodiment when the partitioning portion is placed in the standby position and the low-voltage wire is placed in the installation member. FIG. DETAILED DESCRIPTION OF THE INVENTION
[0009] Hereinafter, a wire protection member according to this embodiment will be described in detail with reference to the drawings. Note that the dimensional proportions in the drawings are exaggerated for the sake of explanation and may differ from the actual proportions.
[0010] As shown in FIG. 3 , the wire protection member 1 according to this embodiment is disposed in a hole 103 that penetrates an installation member 101, such as a beam of a building unit (not shown) of a prefabricated house or the like. Multiple types of electric wires 109, such as high-power wires 105 for power supply and low-power wires 107 for communication, are wired in the installation member 101. The multiple types of electric wires 109 are disposed by inserting them through the hole 103 in the installation member 101. The multiple types of electric wires 109 may come into contact with the edge of the hole 103 and be damaged. Additionally, the multiple types of electric wires 109 need to be spaced apart from one another in the hole 103 to prevent different types of electric wires 109 from contacting each other. Therefore, a wire protection member 1 that can prevent interference between the electric wires 109 and the edge of the hole 103 and separate the electric wires 109 by type is disposed in the hole 103 in the installation member 101.
[0011] As shown in FIGS. 1 to 5, the wire protection member 1 includes a main body portion 3, an insertion portion 5, a partition portion 7, and an engagement portion 9.
[0012] The main body 3 is made of an insulating material such as a synthetic resin having insulating properties equal to or greater than those of the insulating coating of the electric wire 109. The main body 3 is formed in a circular ring shape that continues in the circumferential direction, similar to the hole 103 of the installation member 101. The outer diameter of the main body 3 is set to be equal to the inner diameter of the hole 103 so that the main body 3 can be inserted into the hole 103.
[0013] The insertion portion 5 is a circular opening defined by the inner diameter of the main body portion 3. The insertion portion 5 is formed continuously in the circumferential direction. Therefore, when the main body portion 3 is placed in the hole 103, the edge of the hole 103 is not exposed inside the hole 103. Multiple types of electric wires 109 are inserted and placed in the insertion portion 5. When the electric wires 109 are inserted into the insertion portion 5, the edge of the hole 103 is not exposed inside the hole 103, so there is no interference between the electric wires 109 and the edge of the hole 103, and damage to the electric wires 109 can be prevented.
[0014] The partitioning portion 7 is made of an insulating material, such as synthetic resin, having insulating properties equivalent to or greater than those of the insulating coating of the electric wire 109. The partitioning portion 7 is formed in a linear shape separate from the main body 3 and flexible. Both longitudinal ends of the partitioning portion 7 are integrally fixed to one side surface of the main body 3 by a joining means such as welding or adhesive. Because the partitioning portion 7 is flexible, it can be extended and retracted relative to the insertion portion 5. In the standby position (see FIG. 2) where the partitioning portion 7 is not extended, the partitioning portion 7 is arranged along the side surface of the main body 3 and does not define the opening of the insertion portion 5, making the insertion portion 5 a single opening. On the other hand, in the extended position (see FIG. 1) where the partitioning portion 7 is extended, the partitioning portion 7 is arranged in the insertion portion 5 and divides the opening of the insertion portion 5 into two openings. By making the partitioning portion 7 extendable and retractable relative to the insertion portion 5 in this way, the partitioning of the insertion portion 5 by the partitioning portion 7 can be changed. The partition section 7 does not have to be fixed integrally to the main body section 3, but may be provided detachably to the main body section 3 via an engagement section, for example. In this case, the partition section 7 does not need to be flexible, and may have rigidity that prevents it from bending.
[0015] When the partitioning portion 7 is in the extended position, for example, a low-voltage wire 107 can be inserted through one opening of the insertion portion 5, and a high-voltage wire 105 can be inserted through the other opening. This allows multiple types of electric wires 109 to be spaced apart by type within the insertion portion 5, preventing contact between different types of electric wires 109. For example, as shown in FIGS. 4 and 5 , when only one type of electric wire 109 is inserted through the hole 103, the partitioning portion 7 can be placed in the standby position. When the partitioning portion 7 is in the standby position, the partitioning portion 7 does not block the opening of the insertion portion 5, so the opening area of the insertion portion 5 is not reduced. This allows the electric wires 109 to be inserted through the insertion portion 5 even if the number or diameter of one type of electric wire 109 increases.
[0016] The partition 7 is provided above the main body 3 so as to divide the insertion portion 5 into an upper opening and a lower opening in the extended position. For example, if the partition 7 divides the insertion portion 5 into left and right openings in the extended position, multiple types of electric wires 109 may be arranged adjacent to each other on both the left and right sides of the partition 7. In this case, the multiple types of electric wires 109 inserted through the insertion portion 5 may come into contact with each other at the partition 7 or near the insertion portion 5. Therefore, by dividing the insertion portion 5 into upper and lower openings using the partition 7, it is possible to reliably prevent the multiple types of electric wires 109 inserted through the insertion portion 5 from coming into contact with each other. For example, as shown in FIG. 3 , a weak electric wire 107 is inserted through the upper opening, and a strong electric wire 105 is inserted through the lower opening. The weak electric wire 107 is held in the partition 7 by its own weight. The strong electric wire 105 is held in the insertion portion 5 by its own weight. Therefore, a sufficient distance can be secured between the weak electric wire 107 and the strong electric wire 105, and contact between the multiple types of electric wires 109 inserted through the insertion portion 5 can be reliably prevented.
[0017] The engaging portion 9 includes an engaging wall 11 and an engaging piece 13 .
[0018] The engagement wall 11 is a member continuous with the main body 3, protruding radially outward from the outer peripheral surface of the main body 3 and extending circumferentially around the outer periphery of the main body 3. The engagement wall 11 is disposed on one side of the outer peripheral surface of the main body 3, and a plurality of engagement walls 11 (four in this example) are provided in the circumferential direction of the outer periphery of the main body 3. The engagement walls 11 protrude from the outer peripheral surface of the main body 3 so as to extend radially outward beyond the hole 103 of the installation member 101. When the main body 3 is inserted into the hole 103, the engagement wall 11 engages with one surface of the installation member 101 located around the hole 103. Due to the engagement between the one surface of the installation member 101 and the engagement wall 11, the main body 3 does not slip out of the hole 103 toward the other surface of the installation member 101.
[0019] The engagement piece 13 extends axially outward from the other side surface of the main body 3 as a single member continuous with the main body 3, and is provided so as to be elastically deformable, with its base end on the main body 3 side and its tip in the extending direction as a free end. An engagement protrusion 15 protrudes from the free end of the engagement piece 13 so as to protrude radially outward from the hole 103 of the installation member 101. A plurality of engagement pieces 13 (four in this example) are provided on the main body 3 so as to be positioned between adjacent engagement walls 11, 11 in the circumferential direction of the main body 3. By positioning the engagement piece 13 between adjacent engagement walls 11, 11, the elastic deformation of the engagement piece 13 can be visually confirmed when viewing the engagement piece 13 from the engagement wall 11 side. When the main body 3 is inserted into the hole 103, the engagement protrusion 15 slides against the edge of the hole 103, causing the engagement piece 13 to be elastically deformed. The elastically deformed engagement pieces 13 return to their original shape when the main body 3 is inserted into the hole 103, and the engagement protrusions 15 engage with the other surface of the installation member 101 located around the hole 103. At this time, the elastically deformed state of the engagement pieces 13 can be visually confirmed between the adjacent engagement walls 11, 11, and the engagement state of the engagement protrusions 15 can be visually confirmed. Due to the engagement between the other surface of the installation member 101 and the engagement protrusions 15 (engagement pieces 13), the main body 3 does not slip out of the hole 103 toward one surface of the installation member 101.
[0020] By providing the engaging portion 9 on the main body 3, the main body 3 can be held in the hole 103 via the engaging portion 9, and there is no need to form a notch in part of the circumference to elastically deform the main body 3 and the insertion portion 5. This allows the main body 3 and the insertion portion 5 to be formed in a ring shape that is continuous in the circumferential direction. The engaging portion 9 has an engaging wall 11 that engages with one surface of the installation member 101 and an engaging piece 13 that engages with the other surface of the installation member 101, so that the installation member 101 is sandwiched and engaged between the engaging wall 11 and the engaging piece 13, and the main body 3 can be stably held in the hole 103.
[0021] Such a wire protection member 1 includes a main body 3 that is placed in a hole 103 of an installation member 101 through which multiple types of electric wires 109 are inserted, and an insertion portion 5 that is provided in the main body 3 and through which the multiple types of electric wires 109 are inserted. The wire protection member 1 also includes a partition portion 7 that is placed in the insertion portion 5 and partitions the insertion portion 5 so that different types of electric wires 109 can be inserted therethrough. The partition portion 7 is positioned so that it can appear and disappear from the insertion portion 5.
[0022] By making the partitioning portion 7 retractable relative to the insertion portion 5, it is possible to change the partitioning of the insertion portion 5 by the partitioning portion 7. When the partitioning portion 7 is arranged in the insertion portion 5, different types of electric wires 109 can be inserted into the respective partitioned portions of the insertion portion 5 separated by the partitioning portion 7. This makes it possible to prevent different types of electric wires 109 from coming into contact within the insertion portion 5. When the partitioning portion 7 is not arranged in the insertion portion 5, the partitioning portion 7 does not block the opening of the insertion portion 5, and the opening area of the insertion portion 5 is not reduced. This makes it possible to insert the electric wires 109 into the insertion portion 5 even if the number or diameter of one type of electric wire 109 increases, for example.
[0023] Therefore, in such a wire protection member 1, the partitioning of the insertion portion 5 by the partitioning portion 7 can be changed.
[0024] The insertion portion 5 is formed in a ring shape that is continuous in the circumferential direction. The main body 3 is provided with an engagement portion 9 that engages with the installation member 101 and holds the main body 3 in the hole 103.
[0025] By providing the main body 3 with the engaging portion 9 that engages with the installation member 101, the main body 3 can be held in the hole 103 via the engaging portion 9, and there is no need to form a notch in part of the circumference to elastically deform the main body 3 and the insertion portion 5. This allows the main body 3 and the insertion portion 5 to be formed in a ring shape that is continuous in the circumferential direction. Because the insertion portion 5 is formed in a ring shape that is continuous in the circumferential direction, the edge of the hole 103 is not exposed inside the hole 103 when the main body 3 is placed in the hole 103. This prevents interference between the electric wire 109 and the edge of the hole 103, preventing damage to the electric wire 109.
[0026] In addition, the engagement portion 9 has an engagement wall 11 that engages with one side of the installation member 101 located around the hole 103, and an elastically deformable engagement piece 13 that engages with the other side of the installation member 101 located around the hole 103.
[0027] Therefore, when the main body 3 is placed in the hole 103, the engagement wall 11 and the engagement piece 13 sandwich and engage the installation member 101, allowing the main body 3 to be stably held in the hole 103.
[0028] Although the present embodiment has been described above, the present embodiment is not limited to this, and various modifications are possible within the scope of the gist of the present embodiment.
[0029] For example, although there is one partition, this is not limiting and there may be two or more partitions. By providing multiple partitions, the insertion portion can be further divided, making it possible to accommodate an increase in the number of types of electric wires. In addition, for example, the partitions may be formed in a cross or lattice shape, and one partition may divide the insertion portion into three or more portions.
[0030] Although four engagement walls are provided, this is not a limitation and the number of engagement walls may be three or less, or five or more. Similarly, although four engagement pieces are provided, this is not a limitation and the number of engagement pieces may be three or less, or five or more. In addition, although multiple engagement walls are discontinuously arranged in the circumferential direction of the main body, this is not a limitation and the engagement walls may be formed continuously in the circumferential direction of the main body. [Explanation of symbols]
[0031] 1 Wire protection material 3 Main body 5 Insertion part 7 Compartment 9 Engagement part 11 Engagement wall 13 Engagement piece 101 Installation materials 103 holes 109 Electric wire
Claims
1. a main body portion disposed in a hole of the installation member through which the plurality of types of electric wires are inserted; an insertion portion provided on the main body portion and through which the plurality of types of electric wires are inserted; a partition portion disposed in the insertion portion and partitioning the insertion portion so that different types of electric wires are inserted therethrough; Equipped with The partition portion is disposed in a wire protection member so as to be able to appear and disappear from the insertion portion.
2. The insertion portion is formed in a circumferentially continuous annular shape, The wire protection member according to claim 1 , wherein the main body portion is provided with an engaging portion that engages with the installation member to hold the main body portion in the hole.
3. 3. The wire protection member according to claim 2, wherein the engaging portion has an engaging wall that engages with one side of the installation member located around the hole, and an elastically deformable engaging piece that engages with the other side of the installation member located around the hole.
Citation Information
Patent Citations
Wiring structure for building
JP1999150844A