Wiring protection material

Abstract

To provide a wiring protection component that is less likely to damage the cable's outer sheath and allows for easier installation after wiring. [Solution] The wiring protection member is attached so as to cover the edge HM of a hole H for passing wires through a plate material B, and comprises a protective portion 10 that extends in the longitudinal direction and is located inside the opening of the edge HM when attached to the hole H to prevent contact between the cable and the edge HM, and a clamping claw portion 20 that is formed intermittently along the longitudinal direction of the protective portion 10 and clamps the plate material B from both sides in the thickness direction relative to the hole H when attached to the hole H.

Description

Technical Field

[0001] The present invention relates to a wiring protection member.

Background Art

[0002] Conventionally, a wiring protection member provided for a hole for passing a wire formed in a beam or the like of a building including a prefabricated house is known. This wiring protection member is constituted by, for example, a C-shaped member provided so as to cover the inside of the hole edge so that the outer skin of the cable is not damaged by the hole edge of the hole for passing a wire (see, for example, FIG. 7 of Patent Document 1). However, since the hole edge is exposed at the open portion of the C in the C-shaped member, the outer skin of the cable is damaged.

[0003] Therefore, a wiring protection member having an annular body diameter portion passing through the hole for passing a wire has been proposed (see, for example, FIG. 1 of Patent Document 1). According to this wiring protection member, since it is formed in an annular shape, it is possible to make it difficult to damage the outer skin of the cable without exposing the hole edge.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, since the wiring protection member described in FIG. 1 of Patent Document 1 is formed in an annular shape, when it is noticed that the wiring protection member has been forgotten to be attached after passing the cable through the hole, first, it is necessary to pull out the cable from the hole. For this reason, there is a possibility that the outer skin of the cable is damaged when pulling out, and the work has to be redone.

[0006] The present invention was made to solve these problems, and its objective is to provide a wiring protection member that is less likely to damage the outer sheath of a cable and allows for easier installation after wiring. [Means for solving the problem]

[0007] The wiring protection member according to the present invention is a wiring protection member that is attached so as to cover the edge of a hole for passing wires through a plate material, and comprises: a protective portion that is formed extending in a specific direction and is located inside the opening of the hole edge when attached to the hole to prevent contact between the cable and the hole edge; and a clamping claw portion that is formed intermittently along the longitudinal direction of the protective portion and clamps the hole from both sides in the thickness direction of the plate when attached to the hole. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a wiring protection member that is less likely to damage the outer sheath of a cable and allows for easier installation after wiring. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view showing the mounting state of the wiring protection member according to the first embodiment. [Figure 2] This is a perspective view showing the wiring protection member according to the first embodiment in an unattached state. [Figure 3] Figure 2 is a plan view of the protective section, and is a view taken along arrow A in Figure 2. [Figure 4] Figures 1 and 2 show a partial cross-sectional view of the wiring protection member in its installed state. [Figure 5] This is a perspective view showing the wiring configuration of the wiring protection member according to the first embodiment. [Figure 6] This is a perspective view showing the mounting state of the wiring protection member according to the second embodiment. [Figure 7] This is a perspective view showing the wiring protection member according to the second embodiment in an unattached state. [Figure 8]This is a perspective view showing the wiring configuration of the wiring protection member according to the second embodiment. [Modes for carrying out the invention]

[0010] The present invention will be described below in accordance with preferred embodiments. It should be noted that the present invention is not limited to the embodiments shown below, and can be modified as appropriate without departing from the spirit of the invention. Furthermore, in the embodiments shown below, some illustrations and descriptions of certain components are omitted. It goes without saying that, regarding the details of the omitted technologies, publicly known or well-known technologies are applied as appropriate, to the extent that they do not contradict the content described below.

[0011] Figure 1 is a perspective view showing the wiring protection member installed according to the first embodiment, and Figure 2 is a perspective view showing the wiring protection member not installed according to the first embodiment. Note that for some components shown in Figure 2, only some of them are indicated by reference numerals.

[0012] As shown in Figure 1, the wiring protection member 1 is provided in a hole H for routing wires formed in a building, including a prefabricated house. In buildings, holes H for routing wires are formed in beams, etc., for the purpose of electrical wiring, and cables may be passed through these holes H. The wiring protection member 1 is provided along the edge HM (see Figure 4) of the hole to prevent the cables passed through in this manner from being damaged by the edge HM. In particular, the wiring protection member 1 according to this embodiment is provided around the entire circumference of the edge HM, so that the inserted cable does not come into contact with the edge HM.

[0013] As shown in Figure 2, such a wiring protection member 1 comprises a protective portion 10, a plurality of clamping claw portions 20, and a separator band 30. The protective portion 10 is a plate-shaped member that extends in the longitudinal direction (specific direction) of the wiring protection member 1. The plurality of clamping claw portions 20 are portions that are formed intermittently in the longitudinal direction of the protective portion 10.

[0014] Figure 3 is a plan view of the protective section 10 shown in Figure 2, and is a view taken along arrow A in Figure 2. As shown in Figure 3, the protective section 10 comprises a wide section 11 formed to a predetermined width and a narrow section 12 formed to be narrower than the wide section 11. From the viewpoint of concealing the hole edge HM, it is preferable that the narrow section 12 has a width equal to or greater than the thickness T (see Figure 4) of the plate material B (see Figure 4).

[0015] Refer to Figure 2 again. The clamping claw portion 20 shown in Figure 2 functions as an attachment portion for attaching the wiring protection member 1 to the wiring hole portion H shown in Figure 1. Figure 4 is a partial cross-sectional view of the wiring protection member 1 in the attached state shown in Figures 1 and 2. As shown in Figure 4, the clamping claw portion 20 has a pair of plate portions 21 that rise up from the wide portion 11 of the protection portion 10. The pair of plate portions 21 are structured so that their tip ends are close to each other.

[0016] In this clamping claw portion 20, the distance between the tip ends of the pair of plate portions 21 when not attached is narrower than the thickness T of the plate material B in which the wire passage hole H is formed. Therefore, as shown in Figure 4, the wiring protection member 1 clamps the hole H at the location indicated by the symbol PO (hereinafter referred to as clamping location PO) where the tip ends of the two plate portions 21 constituting the clamping claw portion 20 are located. The wiring protection member 1 is fixed to the hole H by having multiple such clamping locations PO scattered along the hole edge HM. Furthermore, since the protection portion 10 is located inside the opening beyond the hole edge HM, it prevents the cable from coming into contact with the hole edge HM and getting damaged.

[0017] Refer to FIG. 2. The separator band 30 is a member provided on the opposite side of the clamping claw portion 20 that sandwiches the protection portion 10 when not attached to the hole H (see FIG. 1). This separator band 30 includes an extension portion 31 and a connection portion 32. The extension portion 31 is a rod-shaped member extending in the longitudinal direction. The connection portion 32 is a member that connects each of the two ends of the extension portion 31 to the protection portion 10. The extension portion 31 and the connection portion 32 have a thickness and width that are, for example, equal to or less than that of the narrow portion 12 (see FIG. 3). For this reason, the separator band 30 is relatively easy to bend. As shown in FIG. 1, when the wiring protection member 1 is attached to the through-hole H for wiring, particularly the extension portion 31 will bend inside the opening.

[0018] Note that as shown in FIG. 2, it is preferable that at least the extension portion 31 of the separator band 30 is formed by a rod-shaped member of a polygonal prism (a quadrangular prism in the figure). When the extension portion 31 is a rod-shaped member formed by a polygonal prism, it bends in the direction of the polygonal surface and is difficult to bend in the corner direction, so it is easy to make the bending direction appropriate. That is, it is preferable that the extension portion 31 is formed such that a specific surface of the polygonal prism faces the center of the hole H when the wiring protection member 1 is attached, and the bending direction is appropriate.

[0019] Next, a method for attaching the wiring protection member 1 according to the first embodiment will be described. First, the operator checks the size of the through-hole H for wiring. Next, the operator cuts a length corresponding to the size of the hole H from the long wiring protection member 1. The cutting is preferably performed at the narrow portion 12 of the protection portion 10.

[0020] Next, the operator attaches the clamping claw portion 20 to the through-hole H for wiring. At this time, the operator spreads the tips of the pair of plate portions 21 of the clamping claw portion 20 and inserts the hole edge HM between the plate portions 21, and pushes the wiring protection member 1 until, for example, the protection portion 10 contacts the hole edge HM. The operator performs the same operation for all the clamping claw portions 20. Thus, the attachment of the wiring protection member 1 is completed. In the completed attachment state, the separator band 30 is in a state of being curved inward.

[0021] Here, the above process can be performed even if a cable has already been inserted through the hole H for cable passage. Also, since the wiring protection member 1 has a separator band 30, another cable or the like can be inserted into the space within the separator band 30.

[0022] Figure 5 is a perspective view showing the wiring configuration of the wiring protection member 1 according to the first embodiment. As shown in Figure 5, for example, the wiring protection member 1 attached to the wiring hole H is equipped with three separator bands 30. A PF (Plastic Flexible) pipe P is inserted outside the separator bands 30. A high-voltage cable C1 is inserted through one of the spaces within the three separator bands 30. Furthermore, a low-voltage cable C2 is inserted through the spaces within the other separator bands 30.

[0023] In this way, the separator band 30 allows for wiring to the hole H while keeping each component P, C1, and C2 separated so that they do not come into contact. In particular, the internal wiring regulations stipulate that the high-voltage cable C1 and the low-voltage cable C2 must not come into contact. Therefore, by isolating the insertion space with the separator band 30, it is possible to make it difficult for the two to come into contact. In particular, by inserting the high-voltage cable C1 into one separator band 30 and the low-voltage cable C2 into the other separator band 30, the two can be separated even further, making it even less likely for them to come into contact.

[0024] In this way, the wiring protection member 1 according to the first embodiment comprises a protective portion 10 formed to extend in the longitudinal direction and clamping claw portions 20 that clamp the hole H from both sides in the thickness direction relative to the hole H. The worker then cuts the wiring protection member 1 to an appropriate length according to the size of the hole H for wire passage and attaches the cut wiring protection member 1 to the hole H using the clamping claw portions 20. As a result, the wiring protection member 1 is positioned in the hole H with virtually no gaps according to the size of the hole H and can be attached even after the wire has been passed through. This makes it difficult for the hole edge HM to be exposed and eliminates the need to pull out the cables C1 and C2 after the wire has been passed through. Therefore, it is possible to provide a wiring protection member 1 that is less likely to damage the outer sheath of the cables C1 and C2 and allows for easier attachment after the wire has been passed through.

[0025] Furthermore, the protective portion 10 has a wide portion 11 of a predetermined width where the clamping claw portion 20 is provided, and a narrow portion 12 that is narrower than the predetermined width where the clamping claw portion 20 is not provided. As a result, the narrow portion 12 where the clamping claw portion 20 is not provided is easily bent, making it easier to position the wiring protection member 1 along the hole H for wire passage. In addition, since the wiring protection member 1 has a narrow portion 12, it is easier to cut at the narrow portion 12, which is expected to improve work efficiency.

[0026] Furthermore, the wiring protection member 1 is further equipped with a separator band 30. This allows the worker to, for example, insert the high-voltage cable C1 inside the separator band 30 and the low-voltage cable C2 outside the separator band 30. This makes it possible to arrange the high-voltage cable C1 and the low-voltage cable C2, which must not come into contact, in an isolated state within the hole. In addition, electrical equipment such as PF pipes P and air conditioning ducts (not shown) can be arranged separately from the high-voltage cable C1 or the low-voltage cable C2.

[0027] Next, a second embodiment of the present invention will be described. The wiring protection member according to the second embodiment is the same as that of the first embodiment, but some of its components differ. The differences from the first embodiment will be described in detail below.

[0028] Figure 6 is a perspective view showing the mounting state of the wiring protection member according to the second embodiment, and Figure 7 is a perspective view showing the unmounted state of the wiring protection member according to the second embodiment. As shown in Figures 6 and 7, the wiring protection member 2 according to the second embodiment comprises a protective part 10 and a plurality of clamping claw parts 20, similar to the first embodiment, and is attached to the hole H, similar to the first embodiment. In Figure 7, as in Figure 2, not all of the clamping claw parts 20 are indicated by reference numerals, and some are omitted from the reference numerals.

[0029] Furthermore, the wiring protection member 2 according to the second embodiment is equipped with multiple isolation sections 40 instead of multiple separator bands 30. The multiple isolation sections 40 are members provided on the opposite side of the clamping claws 20 that sandwich the protection section 10 when not attached to the hole H. Each isolation section 40 is equipped with a protruding section 41 and a bent section 42. The protruding section 41 is a rod-shaped member that protrudes on the opposite side. The bent section 42 is a rod-shaped member that bends and extends from the protruding section 41 that protrudes on the opposite side toward the longitudinal direction of the wiring protection member 2. Note that the bent section 42 does not have to extend parallel to the longitudinal direction, and may be bent and extend toward the longitudinal direction at an angle to the longitudinal direction.

[0030] Furthermore, as shown in Figure 6, the length of the protrusion 41 is approximately the same as the radius of the hole H. Therefore, when the wiring protection member 2 is attached to the hole H, the tip of the protrusion 41 will be in approximate contact, dividing the space within the hole H into multiple sections. It is also preferable that the protrusion 41 has a rigidity of a certain degree or higher so that it can maintain the state of dividing the space within the hole H as shown in Figure 6. On the other hand, although the protrusion 41 has a rigidity of a certain degree or higher, it is preferable that it has a rigidity that allows it to be bent with a certain amount of force. In addition, since the isolation section 40 has a bent section 42 and is hook-shaped, the isolation section 40a located above in the attached state can be easily used to hold the inserted cables C1 and C2 (see Figure 5) by hooking them. It is preferable that the wiring protection member 2 equipped with such an isolation section 40 be manufactured in multiple types to accommodate differences in the diameter of the hole H.

[0031] Next, the method for installing the wiring protection member 2 according to the second embodiment will be described. First, the worker confirms the size of the hole H for wire passage. Next, the worker selects a wiring protection member 2 in which the radius of the hole H and the length of the protruding portion 41 are approximately the same. Next, the worker cuts a length from the long wiring protection member 2 corresponding to the size of the hole H. It is preferable that the cutting is performed at the narrow portion 12 of the protection portion 10.

[0032] Next, the worker attaches the clamping claw portion 20 to the hole portion H for cable passage. This causes the protective portion 10 to cover the hole edge HM, preventing damage to the cables C1 and C2 from contact with the hole edge HM (see Figure 3).

[0033] Furthermore, in this state, the multiple isolation sections 40 have their protruding sections 41 in close proximity or in contact with each other. As a result, the internal space of the hole H is divided into multiple sections, allowing cables C1, C2 and electrical components to be inserted.

[0034] Figure 8 is a perspective view showing the wiring protection member 2 according to the second embodiment. As shown in Figure 8, for example, the wiring protection member 2 attached to the hole H for wiring has five isolation sections 40. This allows the space inside the hole to be divided into five sections. This allows, for example, a high-voltage cable C1, a low-voltage cable C2, and a ground wire (cable) C3 to be placed in separate spaces.

[0035] In this way, the wiring protection member 2 according to the second embodiment provides a wiring protection member 2 that is less likely to damage the cable sheath and allows for easier installation after wiring, similar to the first embodiment. Furthermore, similar to the first embodiment, the narrow portion 12 of the wiring protection member 2 is more flexible, making it easier to position along the wiring hole H, and it is also easier to cut at the narrow portion 12, which is expected to improve workability.

[0036] Furthermore, the wiring protection member 2 according to the second embodiment has a plurality of key-shaped isolation portions 40. Therefore, the space inside the hole can be separated by utilizing the plurality of isolation portions 40. This makes it possible to arrange, for example, a high-voltage cable C1 and a low-voltage cable C2 that must not come into contact with each other in an isolated state inside the hole. In addition, electrical equipment such as PF pipes P and air conditioning ducts can be arranged separately from the high-voltage cable C1 or the low-voltage cable C2. Moreover, since the isolation portions 40 have bent portions 42 and are key-shaped, the isolation portion 40a located above can be used to easily hold the inserted cables C1 and C2 by hooking them.

[0037] In the wiring protection member 2 according to the second embodiment, although the protruding portion 41 has a rigidity greater than a predetermined value, it is preferable that it has a rigidity such that it can be bent with a certain amount of force. This allows the wiring protection member 2 to be attached after multiple cables C1, C2 and electrical components have been routed, so that the multiple cables C1, C2 and electrical components can be moved to separate spaces by bending the protruding portion 41, thereby avoiding contact with each other.

[0038] Although the present invention has been described above based on embodiments, the present invention is not limited to the above embodiments, and modifications may be made without departing from the spirit of the invention, and other technologies may be combined as appropriate to the extent possible. Furthermore, publicly known or well-known technologies may be combined as appropriate to the extent possible.

[0039] For example, in the wiring protection members 1 and 2 according to the above embodiment, the entire area where the clamping claw portion 20 is not provided is the narrow portion 12, but the invention is not limited to this, and a part of the area where the clamping claw portion 20 is not provided may be the narrow portion 12.

[0040] Furthermore, while the wiring protection members 1 and 2 according to the above embodiment have a shape that extends linearly in the longitudinal direction when not attached to the hole H, they are not limited to this, and may have a shape that is slightly curved from a straight line and extends in an arc shape (an example of a specific direction in the arc direction) when not attached.

[0041] Furthermore, the wiring protection members 1 and 2 according to the above embodiment are cut to fit the size of the hole H after the size of the hole H has been confirmed. However, the invention is not limited to this, and if the size of the hole H is determined to some extent, the wiring protection members 1 and 2 may be pre-cut to match that size.

[0042] Furthermore, in the wiring protection member 2 according to the second embodiment, the protruding portion 41 does not necessarily have to be approximately the same length as the radius of the hole H, but may be longer than the radius, and the bent portion 42 may be used to interlock the hook shape. [Explanation of Symbols]

[0043] 1,2: Wiring protection components 10:Protective part 11: Wide part 12: Narrow part 20: Holding claw part 30: Separator band 31: Extension part 32: Connection part 40,40a: Isolation section 41:Protrusion 42: Folded part B: Plate material C1, C2: Cable C1: High-voltage cable C2: Low-voltage cable C3: Ground wire (cable) H: Hole HM: hole edge

Claims

1. A wiring protection member that is attached to cover the edge of a hole for passing wires through a plate material, A protective portion is formed extending in a specific direction and positioned inside the opening of the hole edge when attached to the hole, preventing contact between the cable and the hole edge. The protective portion is intermittently formed along the longitudinal direction of the protective portion, and when attached to the hole, the clamping claws clamp the hole from both sides in the thickness direction of the plate, A wiring protection member characterized by comprising the following features.

2. The protective portion has a predetermined width where the clamping claw portion is provided, and is narrower than the predetermined width where the clamping claw portion is not provided. The wiring protection member according to feature 1.

3. The separator band further comprises an extension portion extending in the specific direction and provided on the opposite side of the clamping claw portion that sandwiches the protective portion when not attached to the hole, and connecting portions that connect each end of the extension portion to the protective portion. The wiring protection member according to feature 1.

4. When not attached to the hole, the protective portion is further provided on the opposite side of the clamping claw portion that sandwiches the protective portion, and the isolation portion has a hook shape, with a protruding portion that projects outwards to the opposite side and a bent portion that bends and extends from the protruding portion toward the specific direction. The wiring protection member according to feature 1.

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