Pull-in structure for overhead wire and pull-in tool

Abstract

To provide a pull-in structure for an overhead wire capable of improving workability and versatility.SOLUTION: Provided is a pull-in structure for an overhead wire in a building including a roof eaves part (1). The roof eaves part extends along a second outer wall surface (22) in a projected corner part, where first and second outer wall surfaces (21 and 22) cross, and includes a long crosspiece member (11A) including a protruding portion (112) protruding outward from a position of the first outer wall surface (21) at one side in a length direction. The pull-in structure for the overhead wire comprises a pull-in tool (3) which extends along at least the protruding portion of the long crosspiece member and is fixed to the long crosspiece member in such a manner that a tip end (31) protrudes outward from the roof eaves part (1), and a lock part (34) for locking the overhead wire is provided in the tip end.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a structure for drawing in overhead wiring and a drawing-in tool, and more particularly to a building-side structure for drawing overhead wiring such as electric cables and communication cables into a building having an eaves portion on the roof.

Background Art

[0002] Conventionally, in order to draw overhead wiring into a building such as a house, the overhead wiring has been locked to a drawing-in fitting attached to the outer wall of the building. Since such a drawing-in fitting is fixed to a building structure such as a pillar on the outer wall, it can withstand the tension of the overhead wiring.

[0003] As shown in Japanese Patent Application Laid-Open No. 2007-116841 (Patent Document 1), a technique of attaching a drawing-in fitting to a corner of the eaves ceiling of a house has also been proposed. This fitting includes a building-side fixing member having a triangular shape and fixed to a corner of the eaves ceiling of the house by a predetermined fixing means, and a drawing-in wire locking member having a triangular shape and fixed to the building-side fixing member by a predetermined fixing means and having a locking portion for locking an insulator around which an overhead drawing-in wire is wound.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In a structure for drawing in overhead wiring through a draw-in fitting attached to the outer wall of a house, the wiring may interfere with the roof or eaves depending on the direction (angle) in which the wiring is drawn in. Therefore, as a countermeasure against such interference, as shown in FIG. 11, a draw-in pole P is installed to relay the overhead wiring C. When installing the draw-in pole P, not only does the construction time and cost increase, but the design quality also deteriorates. Thus, there has been a demand for a technology that can draw in overhead wiring into a building without using a draw-in pole.

[0006] Therefore, it is conceivable to attach a draw-in fitting for overhead wiring to the eaves board of the eaves part of the building roof. However, since a load due to the tension of the overhead wiring is applied to the draw-in fitting, there is a risk that the eaves board may fall off if the draw-in fitting is only fixed to the eaves board from below. In Patent Document 1, considering strength, a triangular house-side fixing member is fixed to the eaves board and the nose concealer, but the configuration is complex and the construction takes time.

[0007] In addition, since the protruding dimensions of the eaves part of the roof vary, a highly versatile draw-in fitting is required so that a common draw-in fitting can be applied regardless of the size of the protruding dimension.

[0008] The present invention has been made to solve the above-described problems, and an object thereof is to provide a draw-in structure for overhead wiring that can improve workability and versatility.

Means for Solving the Problems

[0009] An overhead wiring inlet structure according to an aspect of the present invention is an overhead wiring inlet structure in a building having an eaves portion of a roof. The eaves portion of the roof includes a "longitudinal bar member" that extends along the second outer wall surface at a corner where the first and second outer wall surfaces intersect and has a protruding portion that protrudes outward from the position of the first outer wall surface on one side in the longitudinal direction. The overhead wiring inlet structure includes a lead-in tool that extends along at least the protruding portion of the longitudinal bar member and is fixed to the longitudinal bar member so that the tip end protrudes outward from the eaves portion of the roof, and a locking portion for locking the overhead wiring is provided at the tip end.

[0010] Preferably, the eaves portion of the roof includes a reinforcing bar for reinforcing the longitudinal bar member.

[0011] Preferably, the lead-in tool includes a main body member having an upper surface portion and at least one spacer member fixed to the upper surface portion and contacting the longitudinal bar member or the eaves ceiling board.

[0012] More preferably, the main body member has a substantially inverted U-shaped cross section and includes a pair of vertical portions extending downward from the upper surface portion, and a locking portion is provided on at least one of the pair of vertical portions.

[0013] Also, it is desirable that the main body member includes a vertical portion extending downward from the upper surface portion, and a wiring receiving portion for placing the overhead wiring is provided at the lower end portion of the vertical portion.

[0014] Preferably, through holes for passing fixing tools are provided in each of the upper surface portion of the main body member and the spacer member.

[0015] An overhead wiring lead-in tool according to an aspect of the present invention is a lead-in tool for leading overhead wiring into a building having an eaves portion of a roof including the same longitudinal bar member as described above, and extends along at least the protruding portion of the longitudinal bar member and is arranged so that the tip end protrudes outward from the eaves portion of the roof. The lead-in tool includes a main body member having an upper surface portion and at least one spacer member fixed to the upper surface portion and contacting the longitudinal bar member or the eaves ceiling board, and a locking portion for locking the overhead wiring is provided at the tip end.

Advantages of the Invention

[0016] According to the present invention, since it is only necessary to fix the inlet fitting to the long bar member, the workability can be improved. Further, since the long bar member has a portion along the second outer wall surface, the inlet fitting can be attached regardless of the size of the overhang dimension of the roof eaves portion. Therefore, the versatility can be improved.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Embodiments for Carrying Out the Invention

[0018] Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and their description will not be repeated.

[0019] (Regarding the outline) With reference to FIGS. 1 to 3, the outline of the structure for drawing in overhead wiring in a building such as a house will be described. FIG. 1 is a diagram showing the structure for drawing in overhead wiring according to the present embodiment, and shows a longitudinal section of the roof eaves portion 1 located at the corner of the building. FIG. 2 is a cross-sectional view of the roof eaves portion 1 located at the corner of the building, and corresponds to a cross-section along line II-II in FIG. 1. FIG. 3 is a cross-sectional view schematically showing the attachment structure of the drawing-in tool 3, and corresponds to a cross-section along line III-III in FIG. 1.

[0020] First, the configuration of the roof eaves portion 1 located at the corner of the building will be described. As shown in FIG. 2, the corner of the building is a corner where the first outer wall surface 21 and the second outer wall surface 22 intersect. It is assumed that the roof eaves portion 1 in the present embodiment is an eaves portion of a hip roof type. In the following description, the direction along the extending direction of the roof eaves portion 1 with respect to the first outer wall surface 21 (indicated by arrow A1) is referred to as the "x direction", and the direction along the extending direction of the roof eaves portion 1 with respect to the second outer wall surface 22 (indicated by arrow A2) is referred to as the "y direction". Also, the height direction (vertical direction) of the building is indicated as the "z direction".

[0021] The roof eaves portion 1 has a crosspiece member 11 extending in the x direction, a crosspiece member 12 extending in the y direction orthogonal (intersecting) to the crosspiece member 11, a nose hiding portion 13 extending in the vertical direction in contact with the ends of the crosspiece members 11, 12, and an eaves board 14 disposed below the crosspiece members 11, 12. The nose hiding portion 13 and the eaves board 14 are arranged in an L shape in plan view. The crosspiece members 11, 12 are typically eaves base crosspieces (edge members) that support the eaves board 14, and are formed of a substantially square column-shaped wood. The eaves board 14 is fixed to the crosspiece members 11, 12 with screws or the like in a state where the lower surface of the crosspiece members 11, 12 and the back surface of the eaves board 14 are in surface contact. The eaves board 14 and the crosspiece members 11, 12 are arranged horizontally.

[0022] The crosspiece member 11 located at the corner of the building includes a "long crosspiece member 11A" that extends in the x direction adjacent to or close to the second outer wall surface 22. The long crosspiece member 11A is located outside the width of the first outer wall surface 21 and extends along the second outer wall surface 22. The long crosspiece member 11A is longer than the normal-length crosspiece member 11B located within the width of the first outer wall surface 21. The crosspiece member 11B corresponds to a vertical crosspiece (vertical edge) when based on the first outer wall surface 21. Most of the longitudinal direction of the long crosspiece member 11A is arranged facing the upper end portion of the second outer wall surface 22, and one end portion in the longitudinal direction protrudes outward from the position of the first outer wall surface 21 (hereinafter referred to as "reference position B"). The long crosspiece member 11A corresponds to a horizontal crosspiece (horizontal edge) when based on the second outer wall surface 22.

[0023] The long crosspiece member 11A extends along the x direction (along the second outer wall surface 22) so as to straddle the reference position B. In the following description, among the long crosspiece member 11A, the portion 111 facing (or in contact with) the upper end portion of the second outer wall surface 22 is referred to as the "main body portion 111", and the portion 112 that does not face the upper end portion of the second outer wall surface 22 and protrudes outward (left side of the paper) from the reference position B is referred to as the "protruding portion 112".

[0024] The main body portion 111 of the long crosspiece member 11A is suspended and supported by a suspension member (not shown) or the like on the building's frame portion such as the rafter 10. Alternatively, the main body portion 111 may be fixed to a component of the outer wall portion 220 having the second outer wall surface 22 as its surface via a connection bracket (not shown) or the like.

[0025] The protruding portion 112 of the long crosspiece member 11A intersects at least one crosspiece member 12 extending in the y direction. In the present embodiment, since the crosspiece members 11 and 12 are arranged at the same height level, the protruding portion 112 may be configured to include a part of the crosspiece member 12 (the crosspiece material constituting the long crosspiece member 11A may be divided at the intersection with the crosspiece member 12). It is desirable that the long crosspiece member 11A is continuous without interruption even at the intersection with the crosspiece member 12.

[0026] As shown in FIGS. 1 to 3, an inlet fitting 3 for drawing an aerial wire C (shown by an imaginary line in FIG. 1) into a building is attached to a roof eaves portion 1 located at the corner of the building. The inlet fitting 3 is composed of a linearly extending metal fitting. The inlet fitting 3 extends along at least the protruding portion 112 of the long bar member 11A, and its tip portion (one end portion in the longitudinal direction) 31 is fixed to the long bar member 11A so as to protrude outward from the roof eaves portion 1. A locking portion 43 for locking the aerial wire C is provided at the tip portion 31.

[0027] The inlet fitting 3 has a configuration in which a tip portion 31 provided with a locking portion 43 and another portion (a portion fixed to the long bar member 11A of the roof eaves portion 1, hereinafter referred to as a "eaves fixing portion") 32 are continuously provided. Typically, the tip portion 31 is longer than the eaves fixing portion 32.

[0028] In the present embodiment, the inlet fitting 3 is disposed directly below the long bar member 11A, and in the eaves fixing portion 32, it is fixed to the long bar member 11A from below via the eaves ceiling board 14. The fixing means for fixing the inlet fitting 3 to the long bar member 11A is typically a rod-shaped fixture 6 such as a screw or a bolt.

[0029] (Configuration example of the inlet fitting) With reference to FIGS. 4 to 6, a specific configuration example of the inlet fitting 3 will be described. FIG. 4 is a side view of the inlet fitting 3, FIG. 5 is a top view of the inlet fitting 3, and FIG. 6 is an exploded perspective view of the inlet fitting 3.

[0030] The inlet fitting 3 in the present embodiment has a long main body member 4 having an upper surface portion 41 and at least one spacer member 5 fixed to the upper surface portion 41 and in contact with the eaves ceiling board 14. In the installed state, the longitudinal direction (left - right direction of the paper surface) of the main body member 4 of the inlet fitting 3 coincides with the X direction. In the description of the inlet fitting 3, the longitudinal direction (x - direction) of the main body member 4 is also referred to as the vertical direction, and the short - hand direction (y - direction) of the main body member 4 is also referred to as the width direction.

[0031] The main body member 4 has a substantially inverted U-shaped cross-section. The main body member 4 faces the eaves board 14 in the installed state and includes an upper surface portion 41 extending in the longitudinal direction and a pair of vertical portions 42 extending downward from both sides in the width direction of the upper surface portion 41. The vertical portion 42 extends along the longitudinal direction in the same manner as the upper surface portion 41. The main body member 4 is typically formed by bending a single thin metal plate into a substantially U-shape (U-shaped).

[0032] The longitudinal length L1 of the main body member 4 can be determined according to the tension of the overhead wiring C. As an example, it is determined in the range of 700 to 1200 mm. In order to be able to cope even when the tension of the overhead wiring C is relatively large, it is desirable that the length L1 of the main body member 4 is 800 mm or more. The width L2 of the main body member 4 is, for example, 30 to 60 mm.

[0033] The main body member 4 has, in the longitudinal direction, a region 4a that constitutes the tip portion 31 (the region where the locking portion 43 is provided, hereinafter referred to as the "locking region") and a region 4b that constitutes the eaves fixing portion 32 (hereinafter referred to as the "fixing region"). It is desirable that the longitudinal length L3 of the fixing region 4b is longer than the longitudinal length L4 of the locking region 4a. The longitudinal length L3 of the fixing region 4b is, for example, 500 to 800 mm, and the longitudinal length L4 of the locking region 4a is, for example, 100 to 300 mm.

[0034] The width L2 of the main body member 4 may be approximately the same as the width of the long crosspiece member 11A. In FIG. 2, the width of the main body member 4 is slightly exaggerated for illustration.

[0035] The spacer member 5 includes a contact surface portion 51 that is in surface contact with the eaves board 14 in the installed state, a bottom surface portion 53 that is located below the contact surface portion 51 and is fixed to the main body member 4, and a pair of side surface portions 52 that connect both widthwise end portions of the contact surface portion 51 and the bottom surface portion 53. The bottom surface portion 53 is fixed with a fastener 54 such as a screw in a state of being in surface contact with the upper surface portion 41 of the main body member 4. In the present embodiment, in order to facilitate the fixing operation by the fastener 54, notch portions 520 are provided on both of the pair of side surface portions 52 so that their vertical positions do not overlap each other. Further, in the present embodiment, the bottom surface portion 53 is separated into a first bottom surface portion 531 that is connected only to one side surface portion 52 and a second bottom surface portion 532 that is connected only to the other side surface portion 52. The first bottom surface portion 531 and the second bottom surface portion 532 are separated from each other in the vertical direction.

[0036] As shown in FIG. 3, the spacer member 5 is formed in a substantially rectangular tube shape when viewed from one end in the vertical direction. Note that the spacer member 5 may be formed by a general metal rectangular tube. Further, the fixing means for fixing the bottom surface portion 53 to the main body member 4 is not limited to a fastener 54 such as a screw, and the two may be fixed (connected) by welding or the like.

[0037] The spacer member 5 is provided only at the eaves fixing portion 32. The vertical length of the spacer member 5 is sufficiently shorter than that of the main body member 4. A plurality of spacer members 5 are provided at intervals (at a constant pitch) along the vertical direction in the fixing region 4b of the main body member 4. The arrangement pitch of the spacer members 5 can be equal to the fixing pitch by the fixture 6, for example, about 200 mm. The number of spacer members 5 is two or more, and in the present embodiment, it is four.

[0038] A locking portion 43 for locking the overhead wiring C is provided in the locking region 4a of the main body member 4. The locking portion 43 is provided on one or both of the pair of hanging portions 42. The locking portion 43 has, for example, at least two insertion holes 43a through which the overhead wiring C is inserted. Since the locking portion 43 is provided on both of the pair of hanging portions 42, a common lead-in tool 3 can be used regardless of the line direction of the overhead wiring C in plan view.

[0039] As shown in Fig. 6, a small hole (through-hole) 510 for passing the shaft portion of the fixture 6 is provided in the contact surface portion 51 of the spacer member 5. A through-hole 410 for passing the entire fixture 6 is provided at a position corresponding to the small hole (through-hole) 510 on the upper surface portion 41 of the main body member 4. That is, through-holes 410 and 510 for passing the fixture 6 are provided in the upper surface portion 41 of the main body member 4 and the contact surface portion 51 of the spacer member 5, respectively.

[0040] (Method of attaching the lead-in tool) With reference mainly to Figs. 1 to 3, the method of attaching the lead-in tool 3 to the roof eaves portion 1 in the present embodiment will be described.

[0041] First, the lead-in tool 3 is placed directly below the long rail member 11A, and the position in the y direction is adjusted. At the same time, the x direction position is adjusted so that the tip portion 31, which is the locking region 4a of the main body member 4, protrudes outward from the roof eaves portion 1. Then, the position in the z direction is adjusted so that the spacer member 5 of the lead-in tool 3 abuts against the eave ceiling board 14.

[0042] When the positioning of the lead-in tool 3 is completed, the fixing operation of the lead-in tool 3 with the fixture 6 is performed. That is, the fixture 6 is passed through the through-hole 410 of the main body member 4 from below, and the spacer member 5 is fixed to the long rail member 11A (and the eave ceiling board 14) with the fixture 6. When all the spacer members 5 are fixed with the fixture 6, the attachment of the lead-in tool 3 is completed. In the attached state (installed state), the main body member 4 is suspended by the spacer member 5.

[0043] In this way, the lead-in tool 3 can be attached by a simple operation of fixing the spacer member 5 to the long rail member 11A with the fixture 6. Therefore, the workability can be significantly improved as compared with the prior art.

[0044] (Function and effect of the lead-in structure of the overhead wiring) The structure for drawing in the overhead wiring C in this embodiment includes a drawing-in tool 3 fixed to the structure (longitudinal bar member 11A) of the roof eaves portion 1, and a locking portion 43 for locking the overhead wiring C is provided at the tip portion 31 of the drawing-in tool 3. Therefore, it is possible to eliminate the need for a conventional drawing-in pole. Further, since the drawing-in tool 3 includes a main body member 4 having a locking region 4a and a fixing region 4b continuously, and a spacer member 5 fixed to the fixing region 4b of the main body member 4, the long main body member 4 can be arranged away from the eaves board 14 downward. Therefore, the drawing-in tool 3 (main body member 4) can be attached without interfering with the eaves gutter 9 installed at the edge of the roof eaves portion 1.

[0045] Further, since the drawing-in tool 3 is supported by the long longitudinal bar member 11A extending in the x direction beyond the position (reference position) B of the first outer wall surface 21 among the plurality of bar members 11, it can sufficiently withstand the load in the line direction of the utility pole due to the tension of the overhead wiring C. That is, even if the drawing-in tool 3 is pulled in a direction away from the first outer wall surface 21 (outward) (even if a tensile force is applied), the long longitudinal bar member 11A is fixed to the building structure over a wider range compared to the short bar member 11B, so it can withstand such a tensile force.

[0046] Further, since the drawing-in tool 3 is fixed to the long longitudinal bar member 11A extending in the x direction beyond the position (reference position) B of the first outer wall surface 21, the common drawing-in tool 3 can be used regardless of the size of the overhang dimension of the roof eaves portion 1. That is, in FIG. 2, an example is shown in which the longitudinal length L3 (FIG. 5) of the fixing region 4b of the main body member 4 is substantially equal to the length of the protruding portion 112 of the long longitudinal bar member 11A (corresponding to FIG. 7(A)), but the drawing-in tool 3 can be applied to roof eaves portions with various overhang dimensions without changing the length L3 of the fixing region 4b.

[0047] Specifically, it can be applied not only to the roof eaves part 1A with a relatively long overhang dimension as shown in Fig. 7(B), but also to the roof eaves part 1B with a relatively short overhang dimension as shown in Fig. 7(C). When viewed from above, the end part (the end part on the side opposite to the tip part 31) of the retractor 3 attached to the roof eaves part 1B overlaps with the main body part 111 of the long rail member 11A. That is, the eaves fixing part 32 of the retractor 3 is arranged so as to straddle the main body part 111 and the protruding part 112 of the long rail member 11A. Thus, according to the retracting structure according to this embodiment, the versatility can be improved.

[0048] In addition, since the retractor 3 is configured to be supported by the long rail member 11A via the eaves ceiling board 14, the retractor 3 can also be attached to the roof eaves part 1 where the nose hiding part 13 is hidden by the eaves gutter 9. Therefore, the versatility can also be improved in that the common retractor 3 can be applied regardless of the arrangement form of the eaves gutter 9.

[0049] In addition, in this embodiment, since the main body member 4 of the retractor 3 is constituted by a metal fitting bent in a substantially U shape, even if the retractor 3 is pulled obliquely outward in plan view (indicated by the broken line arrow in Fig. 2), the deformation of the main body member 4 can be prevented or suppressed. Further, since the spacer member 5 is formed in a substantially square tube shape extending in the x direction and includes a pair of side surface parts 52 having a certain length in the x direction, even if the retractor 3 is pulled obliquely outward in plan view (indicated by the broken line arrow in Fig. 2), the deformation of the spacer member 5 can be prevented or suppressed.

[0050] In addition, in this embodiment, since the contact surface part 51 of the spacer member 5 (not the main body member 4) is fixed to the long rail member 11A by the fixture 6, the risk of bending or coming off occurring in the fixture 6 can be reduced.

[0051] Furthermore, since the lead-in tool 3 according to the present embodiment is composed of only one member (metal fitting) integrally including the main body member 4 and the spacer member 5, the aerial wiring C can be led into the building without impairing the design of the building. Also, it is possible to keep the manufacturing cost of the lead-in tool 3 low.

[0052] (Modification 1) As shown in FIG. 8, a reinforcing bar 15 for reinforcing at least the protruding portion 112 of the long bar member 11A may be provided on the eaves portion 1 of the roof. The reinforcing bar 15 is preferably arranged, for example, so as to be adjacent to the protruding portion 112. The reinforcing bar 15 extends in the x direction and is fitted, for example, between the soffit 13 and the bar member 12 that are parallel to each other. Alternatively, as shown by the imaginary line in FIG. 8, the reinforcing bar 15 may be arranged so as to be orthogonal to the protruding portion 112. In this case, the reinforcing bar 15 extends in the y direction adjacent to the soffit 13, for example, and may be fitted between the protruding portion 112 and the other bar member 11 that are parallel to each other.

[0053] The eaves portion 1 of the roof may be provided with both a reinforcing bar 15 extending in the x direction and a reinforcing bar 15 extending in the y direction. Also, the eaves portion 1 of the roof may be provided with a reinforcing bar arranged so as to overlap on the long bar member 11A within a range where it does not interfere with other structures, or may be provided with a plate member arranged orthogonally to the eaves board 14 so as to abut on the side surface of the long bar member 11A (not shown).

[0054] (Modification 2) As shown in FIGS. 9 and 10, a wiring receiving portion 44 for placing the aerial wiring C may be provided at the lower end of the hanging portion 42 of the main body member 4. The wiring receiving portion 44 projects from the lower end of one of the pair of hanging portions 42 toward the other hanging portion 42 side and faces the upper surface portion 41.

[0055] The wiring receiving portion 44 may extend along the x direction (the longitudinal direction of the drawing-in tool 3) from one end portion in the longitudinal direction of the main body member 4 to the other end portion, or may be provided at a constant pitch along the x direction as shown in FIG. 10. Thereby, the aerial wiring C sent from the locking portion 43 toward the outer wall surface 21 (or 22) of the building can be accommodated in the main body member 4, so that the design property can be further improved.

[0056] (Other modification examples) Although the main body member 4 of the drawing-in tool 3 is preferably formed in an inverted U shape from the viewpoint of improving strength, it may be formed in an L shape, for example (the hanging portion 42 may be single). Further, although the spacer member 5 of the drawing-in tool 3 is preferably formed in a substantially square tube shape from the viewpoint of improving strength, it may be substituted with a general hat-type joiner, for example.

[0057] In the present embodiment, an example in which the eaves portion 1 includes the eaves board 14 has been described, but the drawing-in tool 3 can also be applied to an eaves portion of a roof that does not include the eaves board 14 (an eaves portion in which the purlin members 11 and 12 are exposed to the outdoor space). That is, the drawing-in tool 3 may be directly fixed to the long purlin member 11A.

[0058] Further, although an application example to the eaves portion 1 assuming a gabled roof has been described, it may be applied to, for example, the eaves portion of a gable roof. In this case, the long purlin member 11A may be a rafter. Alternatively, the long purlin member 11A may be a member dedicated to the drawing-in tool 3.

[0059] The embodiments disclosed this time should be considered as illustrative in all respects and not restrictive. The scope of the present invention is shown not by the above description but by the claims, and it is intended that all modifications within the meaning and scope equivalent to the claims are included.

Explanation of reference numerals

[0060] 1, 1A, 1B Eaves portion of the roof, 3 Fixture, 4 Body member, 5 Spacer member, 6 Fastener, 11, 11B, 12 Rail member, 11A Long rail member, 14 Eave board, 15 Additional rail, 21 First outer wall surface, 22 Second outer wall surface, 31 Tip portion, 32 Eave fixing portion, 41 Upper surface portion, 42 Vertical portion, 43 Locking portion, 44 Wiring receiving portion, 111 Main body portion, 112 Protruding portion, 410, 510 Through hole, B Reference position (x-direction position of the first outer wall surface), C Overhead wiring, P Pole.

Claims

1. A structure for drawing in overhead wiring in a building having an eaves portion of a roof, wherein the eaves portion of the roof includes a long bar member extending along the second outer wall surface at a corner where the first and second outer wall surfaces intersect, and having a protruding portion protruding outward from the position of the first outer wall surface on one side in the longitudinal direction, the structure being provided with a drawing-in tool extending along at least the protruding portion of the long bar member and fixed to the long bar member such that the tip end portion protrudes outward from the eaves portion of the roof, and a locking portion for locking the overhead wiring is provided at the tip end portion. A structure for drawing in overhead wiring.

2. The structure for drawing in overhead wiring according to claim 1, wherein the eaves portion of the roof includes a reinforcing bar for reinforcing the long bar member.

3. The structure for drawing in overhead wiring according to claim 1, wherein the drawing-in tool includes a main body member having an upper surface portion, and at least one spacer member fixed to the upper surface portion and contacting the long bar member or the eaves ceiling board.

4. The main body member has a substantially inverted U-shaped cross section and includes a pair of vertical portions extending downward from the upper surface portion, and the locking portion is provided on at least one of the pair of vertical portions. The structure for drawing in overhead wiring according to claim 3.

5. The main body member includes a vertical portion extending downward from the upper surface portion, and a wiring receiving portion for placing the overhead wiring is provided at the lower end portion of the vertical portion. The structure for drawing in overhead wiring according to claim 3.

6. The structure for drawing in overhead wiring according to any one of claims 3 to 5, wherein through holes for passing fixing tools are provided in each of the upper surface portion of the main body member and the spacer member.

7. A drawing-in tool for drawing in overhead wiring into a building having an eaves portion of a roof, wherein the eaves portion of the roof includes a long bar member extending along the second outer wall surface at a corner where the first and second outer wall surfaces intersect, and having a protruding portion protruding outward from the position of the first outer wall surface on one side in the longitudinal direction, the drawing-in tool being provided with a main body member extending along at least the protruding portion of the long bar member and arranged such that the tip end portion protrudes outward from the eaves portion of the roof, the main body member having an upper surface portion, and at least one spacer member fixed to the upper surface portion and contacting the long bar member or the eaves ceiling board, and a locking portion for locking the overhead wiring is provided at the tip end portion. A drawing-in tool for drawing in overhead wiring.

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