Apparatus for laying

Abstract

To provide an apparatus for laying that more effectively prevents entry of rainwater to a shell into which a laying object is inserted.SOLUTION: An apparatus 1 for laying related to an embodiment of the present invention is installed on a roof F for laying a laying object K from one side to the other side of a roof upper space S1 and a roof lower space S2 through a through hole TH provided in the roof F. The apparatus 1 for laying has: a cylindrical part 2 that rises from an upper wall surface of the roof F, with the inside of which communicating with the through hole TH, and allows the laying object K to be inserted into the inside thereof; a first cover part 4 that is assembled to an upper end 2a of the cylindrical part 2; and a second cover part 6 that covers the first cover part 4 and the upper end 2a of the cylindrical part. The first cover part 4 has: an upper wall 12 that has an engaging hole EH, and is attached to the upper end 2a of the cylindrical part 2, with the upper end 2a being inserted into the engaging hole EH; a retention hole RH that penetrates the upper wall 12, and retains a shell 38 into which a portion of the laying object K located in the roof upper space S1 is inserted; and an outer peripheral wall 14 that is suspended from the upper wall 12 at a position on the outside of the retention hole RH and has a cylindrical shape surrounding the cylindrical part 2.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to installation equipment, and more particularly to installation equipment that is installed on a roof. [Background technology]

[0002] It is known that when cables used for solar panels and communication equipment, wiring and piping materials such as refrigerant pipes for air conditioners, etc. are pulled from the outdoors into a building, pulling equipment installed on the roof is used. For example, Patent Document 1 discloses a device that includes a main body having a base body with an attachment part attached to the protruding end of a hollow cylindrical body that is disposed on the roof and has a routing path for cables and the like inside the body that runs from inside the building to the roof, and a flange part that is provided so as to protrude outward from the attachment part, and a cap body that covers the protruding end of the cylinder and forms a bending space between the attachment part and the flange part for cables and the like drawn out of the cylinder, and the cable and the like that are bent in the bending space are drawn out of the main body by the outer edge of the flange part and the tip edge of the cap body. Also, in the device described in Patent Document 1, a protective tube connector that protects and connects the cable and the like is attached to the outlet hole through which the cable and the like are inserted from the underside of the flange part. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-40290 Summary of the Invention [Problem to be solved by the invention]

[0004] In the device described in Patent Document 1, the upper side of the flange is covered with a cap body, which prevents rainwater from entering the protective pipe from the tip (upper part) of the protective pipe connector. However, it is difficult to prevent rainwater from blowing in from the lower side of the flange. Also, if the roof is flat, and drainage is poor due to clogging of the roof drain or the like, and rainwater accumulates on the roof, there is a risk that rainwater will enter through the extraction hole. SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a cable installation device that more effectively prevents rainwater from entering a pipe through which an object to be installed is inserted. [Means for solving the problem]

[0005] The above problem is solved by the installation equipment of the present invention, which is installed on a roof to lay materials from one side of the roof space to the other of the under-roof space through a through hole provided in the roof, and which has a tubular section that rises from the upper wall surface of the roof with its interior connected to the through hole and into which the material to be laid is inserted, a first cover section attached to the upper end of the tubular section, and a second cover section that covers the first cover section and the upper ends of the tubular section, and the first cover section has an engagement hole and has an upper wall attached to the upper end with the upper end of the tubular section inserted into the engagement hole, a retaining hole that penetrates the upper wall and holds a pipe through which the part of the material to be laid that is in the roof space is inserted, and a tubular outer wall that hangs down from the upper wall at a position outside the retaining hole and surrounds the tubular section.

[0006] In the installation equipment of the present invention configured as described above, the first cover part hangs down from the upper wall at a position outside the retaining hole and has an outer wall surrounding the tubular part, which more effectively prevents rainwater from entering through the lower part of the retaining hole to which the pipe body is connected.

[0007] Furthermore, in the above-mentioned installation equipment, it is preferable that the tubular portion has a base portion that protrudes like a brim from the lower end of the tubular portion, and that the base portion is fixed to the roof by being placed on the upper wall surface of the roof. According to the above configuration, the cylindrical portion can be made to stand on its own on the upper wall surface of the roof, and the cylindrical portion can be prevented from falling out of the through-hole and becoming loose from the roof.

[0008] In the above installation equipment, it is preferable that a first sealant be attached to the upper end of the cylindrical portion to seal a gap between the upper end of the cylindrical portion and the edge of the engagement hole. According to the above configuration, it is possible to prevent water from entering through the joint between the cylindrical portion and the first cover portion.

[0009] Furthermore, in the above-mentioned installation equipment, it is preferable that the second cover part has a cylindrical body part and a ceiling part that seals the upper end opening of the body part, and that the upper wall of the first cover part and the upper end part of the cylindrical part are housed within the body part. According to the above configuration, it is possible to prevent rainwater from entering the cylindrical portion through the engagement hole.

[0010] In addition, in the above-mentioned installation equipment, it is preferable that the outer wall of the first cover part has a first part that forms the upper part of the outer wall and a second part that forms the lower part of the outer wall and has a larger outer diameter than the first part, and that the first part fits inside the body of the second cover part and fits into the body. According to the above configuration, the second cover portion accommodates the engagement hole and the retaining hole, thereby preventing rainwater from seeping in through the engagement hole and the retaining hole. Also, rainwater can be prevented from dripping directly into the engagement hole and the retaining hole and then seeping into the through-hole through the inserted installation.

[0011] Furthermore, in the above-mentioned installation equipment, it is preferable that the outer wall of the first cover part further has a step provided between the first part and the second part and extending radially of the outer wall, and that a second sealing material is attached to the lower end of the first part to seal the gap between the inner surface of the body part and the outer surface of the first part. According to the above configuration, it is possible to prevent water from entering through the joint between the first cover portion and the second cover portion.

[0012] In the above-described installation equipment, it is preferable that the upper end of the cylindrical portion is an open end, and that the inside of the upper end of the cylindrical portion is filled with a non-flammable filling material through the open end. The above-mentioned configuration can ensure fire resistance and also prevent insects and other foreign objects from entering the building.

[0013] In the above-mentioned cable installation equipment, it is preferable that the roof is a flat roof and the object to be installed is an electric cable. According to the above configuration, even if water accumulates on the roof due to poor drainage of the roof drain, for example, it is possible to prevent rainwater from entering the tubular part or the building, and it is also possible to prevent the electric cable from getting wet. [Effects of the Invention]

[0014] According to the laying device of the present invention, it is possible to more effectively prevent rainwater from entering the pipe through which the object to be laid is inserted. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a cross-sectional view showing a schematic diagram of an installation device according to an embodiment of the present invention installed on a roof. [Figure 2] 2A and 2B are perspective views showing the appearance of the installation equipment of FIG. 1, in which FIG. 2A shows the equipment covered with a second cover, and FIG. 2B shows the equipment with the second cover removed. [Figure 3] 3A and 3B are diagrams showing the installation equipment of FIG. 2A, in which FIG. 3A is a top view and FIG. 3B is a side view. [Figure 4] 4(a) is a cross-sectional view taken along line II in FIG. 3(b), and FIG. 4(b) is a cross-sectional view taken along line II-II in FIG. 3(a). [Figure 5] 5A and 5B are diagrams showing a schematic view of a cylindrical part to which a base part of the installation equipment of FIG. 2 is welded, FIG. 5A being a top view, and FIG. 5B being a side view. [Figure 6]6A and 6B are diagrams showing a schematic view of a first cover part of the installation equipment of FIG. 2, with FIG. 6A being a top view and FIG. 6B being a side view. [Figure 7] 7A and 7B are diagrams showing a schematic view of a second cover part of the installation equipment of FIG. 2A, where FIG. 7A is a top view and FIG. 7B is a side view. [Figure 8] 1. FIG. 4 is a diagram showing a support base mounting step in the installation method of the installation equipment of FIG. [Figure 9] 2 is a diagram showing a flat-surface waterproofing step of the installation method for the installation equipment of FIG. 1. FIG. [Figure 10] 2 is a diagram showing a tubular part waterproofing step in the installation method of the installation equipment of FIG. 1 (part 1). FIG. [Figure 11] 1. FIG. 4 is a diagram showing a tubular part waterproofing step in the installation method of the installation equipment of FIG. 1 (part 2). [Figure 12] 1. FIG. 4 is a diagram showing a first cover attaching step in the installation method for the installation equipment of FIG. [Figure 13] FIG. 2 is a diagram showing the electrical piping and cable installation process of the installation method for the installation equipment of FIG. 1. [Figure 14] 2 is a diagram showing a non-combustible material filling step of the installation method of the installation equipment of FIG. 1. FIG. [Figure 15] 1. FIG. 4 is a diagram showing a second cover part attaching step in the installation method of the installation equipment of FIG. [Figure 16] 11 is a diagram for explaining the installation work of the waterproof unit in the cylindrical portion waterproofing step (part 1) of the installation method of the installation equipment of FIG. 10. FIG. [Figure 17] 2 is a diagram showing a waterproofing configuration of the pole base of the installation equipment of FIG. 1. FIG. [Figure 18] 2 is a bottom view of the state in which the first cover part of the installation equipment in FIG. 1 is connected to the electrical pipe. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0016] <<About installation equipment according to one embodiment of the present invention>> Hereinafter, an installation device according to one embodiment of the present invention (hereinafter referred to as this embodiment) will be described with reference to the accompanying drawings. In the drawings, each component is shown somewhat simplified and schematic to make the explanation easier to understand, and the size (dimensions) of each component and the spacing between components shown in the drawings may differ from the actual ones.

[0017] Furthermore, in this specification, when describing the position, orientation, posture, etc. of each part of the device, unless otherwise specified, the description will be of the position, orientation, posture, etc. when the device is in normal use. Furthermore, in this specification, "horizontal," "vertical," "orthogonal," and "parallel" include the range of error generally accepted in the technical field of the present invention, and also include states where the state is deviated from strictly horizontal, vertical, orthogonal, and parallel within a range of less than a few degrees (e.g., 2 to 3 degrees). In this specification, the up-down direction refers to the vertical direction.

[0018] In addition, in this specification, an "installed object" refers to an object that is pulled into a building from the outdoors or pulled out from the inside of a building to the outdoors through the installation equipment of the present invention, and examples thereof include solar power generation transmission cables used in solar power generation panels, distribution cables for electrical equipment such as air conditioners, and communication cables for communication facilities. In addition, in this specification, the term "pipe" refers to a protective pipe that protects cables such as solar cables, wiring / electric cables, and optical fibers from rainwater and breakage, specifically, electrical piping.

[0019] [Configuration example of installation equipment according to this embodiment] As shown in Fig. 1, the installation equipment 1 according to this embodiment (hereinafter referred to as installation equipment 1) is used to install an object, specifically a solar power generation power transmission cable (hereinafter referred to as cable K), from an above-roof space S1 to an under-roof space S2 through a through-hole TH provided in a roof F. The roof F is constructed using ALC (autoclaved lightweight concrete) panels, and in this embodiment is a flat roof. However, the material of the roof F is not limited to ALC panels, as long as the roof can accommodate the installation equipment 1. For example, it may be made of reinforced concrete (RC). Furthermore, the structure of the roof F is not limited to a flat roof, and may be, for example, a sloped roof.

[0020] The installation equipment 1 is formed by processing a metal plate, and as shown in Figures 1 to 7, has a tubular portion 2 that rises from the upper wall surface of the roof F with its interior communicating with the through hole TH and through which the cable K is inserted, a first cover portion 4 attached to the upper end portion 2a of the tubular portion 2, and a second cover portion 6 that covers the first cover portion 4 and the upper end portion 2a of the tubular portion 2.

[0021] The load capacity of the installation equipment 1 is not particularly limited, but it is preferable that the cover area and load capacity are sufficient to cope with areas with heavy snowfall. Here, the "cover area" refers to the area of ​​the upper surface of the second cover part 6. The metal plate that forms the installation equipment 1 is made of a weather-resistant and durable (e.g., corrosion-resistant) material, and in this embodiment, stainless steel plate is used. There are no particular restrictions on the thickness of the metal plate as long as it is thick enough to allow the individual components to be formed, but from the perspective of cost and ease of installation, it is preferable that the thickness be such that the installation equipment 1 can be made lightweight.

[0022] The cylindrical portion 2 is a straight pipe-type component, and as shown in Fig. 5(b), has an upper end 2a to which the first cover portion 4 is fixed and a lower end 2b to which the base portion 8 is fixed. The upper end of the cylindrical portion 2 is an open end, and a screw hole 7 for fixing the first cover portion 4 is provided at a position slightly lower than the upper end 2a. As shown in FIG. 17, the cylindrical portion 2 is provided on its outer periphery with a watertight material 10 (first sealing material) made of EDPM rubber foam (ethylene propylene rubber foam) molded into a ring shape. The watertight material 10 is provided at a position slightly lower than the upper end portion 2a and is configured to close the gap that forms between the cylindrical portion 2 and the first cover portion 4 when the upper end portion 2a is inserted into the engagement hole EH of the first cover portion 4. This makes it possible to prevent water from entering through the joint between the cylindrical portion 2 and the first cover portion 4. The material of the watertight material 10 is not particularly limited as long as it is durable and weather-resistant.

[0023] As shown in Fig. 5(a), the base portion 8 is formed into an annular shape from a metal plate (stainless steel plate), and is connected to the cylindrical portion 2 so as to protrude like a flange in the axial direction from the lower end portion 2b of the cylindrical portion 2. The outer peripheral edge of the lower end portion 2b is spot-welded to the inner peripheral edge of the annular base portion 8. The cylindrical portion 2 to which the base portion 8 is welded is called the support base 3. The base portion 8 is provided with a plurality of (three in the illustrated example) screw holes 9 for fixing to the upper wall surface of the roof F, and is fixed to the roof F with screws 11 as shown in FIG.

[0024] As shown in Figures 6(a) and (b), the first cover part 4 has an upper wall 12 having an engagement hole EH and attached to the upper end part 2a of the tubular part 2 with the upper end part 2a inserted into the engagement hole EH, a retaining hole RH that penetrates the upper wall 12 and holds a pipe body 38 through which the portion of the cable K that is in the space above the roof F is inserted, and a cylindrical outer wall 14 that hangs down from the upper wall 12 at a position outside the retaining hole RH and surrounds the tubular part 2.

[0025] The upper wall 12 has a fitting portion 12a that fits into the upper end portion 2a of the cylindrical portion 2, and a protruding portion 12b that protrudes from the lower end of the fitting portion 12a. The fitting portion 12a has an overall cylindrical shape with an upper end bent radially inward and a lower end bent radially outward, and the outwardly bent lower end is fixed to the inner edge of the protruding portion 12b with a plurality of screws 48. The upper end of the fitting portion 12a is donut-shaped with an engagement hole EH formed on the inside thereof. As shown in Figures 6(b) and 13, the outer peripheral wall of the fitting portion 12a is provided with a threaded hole 15 that aligns with the threaded hole 7 of the tubular portion 2 and through which the screw 13 is inserted.

[0026] The protruding portion 12b is made of a doughnut-shaped flat plate and has an inner diameter larger than the engagement hole EH of the cylindrical portion 2. As shown in Fig. 6(a), the protruding portion 12b is provided with a plurality of (three in the illustrated example) retaining holes RH at appropriate intervals in the circumferential direction. The number and shape of the retaining holes RH are not particularly limited.

[0027] As shown in FIG. 6(b), the outer peripheral wall 14 has a large diameter portion 14a on its lower end side and a small diameter portion 14b on its upper wall 12 side, with the outer diameter of the large diameter portion 14a being larger than the outer diameter of the small diameter portion 14b in a stepped manner. In other words, the large diameter portion 14a forms the lower portion of the outer peripheral wall 14, and the small diameter portion 14b forms the upper portion of the outer peripheral wall 14. A support portion 14c consisting of a step is formed between the large diameter portion 14a and the small diameter portion 14b. A screw hole 17 for fixing the second cover portion 6 is provided in the small diameter portion 14b. In this specification, the large diameter portion 14a corresponds to the second portion, and the small diameter portion 14b corresponds to the first portion.

[0028] The small diameter portion 14b is provided with a circular watertight material 36 (second sealing material) as shown in FIGS. 12 to 14. The watertight material 36 is made by molding EDPM rubber foam (ethylene propylene rubber foam) into a ring shape and is provided at the lower end of the small diameter portion 14b. When the second cover portion 6 is placed over the first cover portion 4, the watertight material 36 seals the gap between the inner circumferential surface of the body portion 16 of the second cover portion 6 (described later) and the outer circumferential surface of the large diameter portion 14a of the first cover portion 4. This prevents water from entering through the joint between the first cover portion 4 and the second cover portion 6. The material of the watertight material 36 is not particularly limited as long as it is durable and weather-resistant.

[0029] As shown in FIGS. 7(a) and 7(b), the second cover part 6 has a cylindrical body part 16 and a ceiling part 18 that seals the upper end opening of the body part 16. The second cover part 6 is placed over the first cover part 4 so that the upper wall 12 of the first cover part 4 and the upper end part 2a of the cylindrical part 2 are housed within the body part 16. When the second cover part 6 is placed over the first cover part 4, the inner circumferential surface of the body part 16 abuts against the small diameter part 14b, and the lower end of the second cover part 6 rests on the support part 14c. This allows the second cover part 6 to be supported by the first cover part 4. In addition, as shown in FIG. 15, a screw hole 21 is provided on the outer periphery of the body part 16, and a screw 19 is inserted through the screw hole 21 that aligns with the screw hole 17 of the first cover part 4.

[0030] <<About the installation method of the installation equipment>> Next, with reference to Figures 8 to 16, a method of installing the installation device 1 on the roof F and laying the cable K from the roof space S1 to the under-roof space S2 via the installation device 1 will be described.

[0031] First, a through hole TH is formed in the roof F (not shown), and then, as shown in Figure 8, a support base 3 having a base portion 8 welded to a tubular portion 2 is positioned so that it stands vertically from the upper wall surface of the roof F with the inside of the tubular portion 2 connected to the through hole TH, and the base portion 8 is fixed to the roof F with multiple (three in the illustrated example) screws 11. Next, as shown in Figure 9, heat insulating material 20 and waterproof sheet 22 are laid out in this order to cover the upper wall surface of roof F, excluding cylindrical portion 2. In order to prevent water retention, insulating material with a slope may be used for heat insulating material 20. There are no particular restrictions on the material of waterproof sheet 22, as long as it is waterproof and can be heat-welded to support accessories 24 (described later).

[0032] Next, as shown in Fig. 10, a waterproof unit 35 consisting of a support accessory 24, butyl tape 30, a waterproof sheet 32, and a SUS band 34 is provided to waterproof the outer peripheral surface of the tubular portion 2. Here, a method for installing the waterproof unit 35 will be described with reference to Figs. 16(a) to (e). FIG. 16(a) shows the state before the waterproof unit 35 is attached to the tubular portion 2, i.e., the state shown in FIG. 9. As shown in FIG. 16(b), the support accessory 24 with the tubular portion 2 inserted therein is placed on the waterproof sheet 22. The support accessory 24 is made of resin and molded into a hat shape. It has a cylindrical portion 26 with an inner diameter slightly larger than the outer diameter of the tubular portion 2, through which the tubular portion 2 is inserted, and a donut-shaped welding and fixing portion 28. The welding and fixing portion 28 is heat-welded to the waterproof sheet 22 after the support accessory 24 is placed. Furthermore, approximately the upper half of the tubular portion 2 in the vertical direction is not covered by the support accessory 24 and the outer peripheral wall 14 of the first cover portion 4. Butyl tape 30A is wrapped around the outer peripheral surface of the lower end of this portion to prevent wrinkles, as shown in FIG. 16(c). This is to prevent water from seeping in through wrinkles.

[0033] 16(d), the waterproof sheet 32A is continuously wound so that there is no gap between the cylindrical portion 26 of the support accessory 24 and the butyl tape 30A, and the waterproof sheet 32B is continuously wound so that there is no gap between the waterproof sheet 32A and the butyl tape 30A. The height at which the waterproof sheets 32A and 32B are provided can be set according to the height of the cylindrical portion 2. Furthermore, as shown in Figure 16(e), butyl tape 30B is continuously wrapped around the waterproof sheet 32B so that it overlaps sufficiently with the waterproof sheet 32B and so that no gaps are left between the waterproof sheet 32B and the tubular portion 2, and then secured with a SUS band 34, thereby completing the installation of the waterproof unit 35 shown in Figure 10.

[0034] As a result, as can be seen from Figure 1, rainwater flows down the waterproof unit 35 onto the waterproof sheet 22, so the outer surface of the tubular part 2 does not get wet with rainwater, and rainwater does not flow down the tubular part 2 into the room.

[0035] 11, after wrapping the watertight material 10 around the outer periphery of the portion of the tubular part 2 located above the position where the waterproof unit 35 is provided, as shown in Fig. 12, the upper end 2a of the tubular part 2 is inserted into the fitting part 12a of the first cover part 4 and inserted into the engagement hole EH, and then the tubular part 2 and the first cover part 4 are fixed with the screw 13. It should be noted that at this stage, the watertight material 36 is already attached to the lower end of the small diameter part 14b of the first cover part 4.

[0036] Next, the cable K is laid as shown in Fig. 13. In Fig. 13, for convenience of illustration, the unused retaining holes RH are simplified, and specifically, one unused retaining hole RH is not shown. The unused retaining hole RH is covered with a cap. Note that, although the present embodiment has been described using an example in which an electric cable is used as the laid object, the laid object may also be a pipe for transporting liquid.

[0037] After attaching the piping connection member 40 used to connect the pipe 38 to the retaining hole RH of the first cover part 4, the tip of the pipe 38 in the roof space S1 is inserted into the piping connection member 40 from inside the cylindrical outer wall 14 surrounding the cylindrical part 2 toward the upper wall 12, and attached to the first cover part 4. The piping connection member 40 can be a connector appropriate for the site. For example, a 30° bend connector, which allows for easy attachment of the pipe 38, as shown in Figures 1 and 18 can be used. Then, the cable K is pulled out from inside the attached pipe body 38, inserted into the engagement hole EH, and passed through the through hole TH in the roof F, and pulled into the under-roof space S2. A wiring damage prevention material (not shown) capable of fixing wiring may be provided at the upper end of the cylindrical portion 2, in which case multiple cables K can be bundled and held in a bound state.

[0038] 14, a non-flammable material 42 that expands with heat and prevents fires and the like is filled inside the upper end 2a of the tubular portion 2, specifically, the inside of the engagement hole EH and the holding hole RH at the entrance portion of the cable K. In this embodiment, a non-flammable putty (for example, fire prevention putty TP-160 manufactured by Inaba Denki Sangyo (Inaba Denko)) is used as the non-flammable material 42. Note that a non-flammable material (non-combustible material) that has been certified by the Minister of Land, Infrastructure, Transport and Tourism for fire prevention and resistance performance, etc. may be used instead of the non-flammable material 42. Furthermore, the through-hole TH in the roof F through which the cable K is inserted is filled with a non-combustible material 44 for fire resistance and to prevent condensation (see FIG. 1). In this embodiment, rock wool is used as the non-combustible material 44. The non-combustible material 42 and the non-combustible material 44 (non-combustible materials) correspond to the "non-combustible filling material" of the present invention. Then, as shown in FIG. 15, the second cover part 6 is placed over the first cover part 4, and the first cover part 4 and the second cover part 6 are fixed together with a plurality of screws 19, thereby completing the installation of the installation equipment 1 and the laying of the cable K according to this embodiment.

[0039] As described above, by using the installation equipment 1 of this embodiment, it is possible to more effectively prevent rainwater from entering from the lower part of the retaining hole RH that connects the pipe 38 through which the cable K is inserted. Furthermore, the installation equipment 1 of this embodiment can prevent rainwater from seeping into the tubular portion 2 through the engagement holes EH and the holding holes RH. It can also prevent rainwater from dripping directly into the engagement holes EH and the holding holes RH and then seeping into the through holes TH along the cables K inserted therethrough. The above effect is particularly effective when the roof F is a flat roof. Specifically, with a flat roof, water is likely to accumulate on the roof due to, for example, poor drainage of the roof drain. In contrast, by using the installation device 1 of this embodiment, even if water accumulates on the roof, it is possible to prevent rainwater from entering the tubular portion 2 or the building.

[0040] Furthermore, the installation equipment 1 of this embodiment is composed of only three parts: the support base 3 (the cylindrical portion 2 having the base portion 8), the first cover portion 4, and the second cover portion 6, and can be easily installed on the upper wall surface of the roof F. Using the installation equipment 1, the cable K can be laid from the roof space S1 to the under-roof space S2 through the through hole TH provided in the roof F. Note that, although the installation equipment 1 is used in this embodiment for the purpose of laying the cable K from the roof space S1 to the under-roof space S2, the installation equipment 1 may also be used when laying the cable K from the under-roof space S2 to the roof space S1.

[0041] While one embodiment of the cable installation equipment of the present invention has been described above, the above embodiment is merely an example for facilitating understanding of the present invention and does not limit the present invention. In other words, the present invention can be modified and improved without departing from the spirit of the present invention. Furthermore, it goes without saying that the present invention includes equivalents thereof. [Explanation of symbols]

[0042] 1 Equipment for laying 2 Cylindrical part 2a Upper end 2b Bottom end 4 First cover part 6 Second cover part 7, 9, 15, 17, 21 screw holes 8 Base 10, 36 Watertight materials 11, 13, 17, 19, 48 screws 12 Upper wall 12a Mating part 12b Overhang 14 Peripheral wall 14a Large diameter section 14b Small diameter section 14c Support part 16 Torso 18 Ceiling 20. Insulation 22, 32, 32A, 32B Tarpaulin 24 Support accessories 26 Cylindrical part 28 Welding fixing part 30, 30A, 30B Butyl tape 34 SUS band 35 Waterproof unit 38 Body 40 Piping connection parts 42 Nonflammable materials 44 Non-combustible materials F roof TH through hole EH engagement hole RH holding hole K Laying material S1 Roof space S2 Under-roof space

Claims

1. A laying device that is installed on a roof to lay an object from one of an above-roof space and an under-roof space to the other through a through-hole provided in the roof, a cylindrical portion that rises from the upper wall surface of the roof with the interior thereof communicating with the through hole and through which the installation object is inserted; a first cover portion attached to an upper end of the cylindrical portion; a second cover portion that covers the first cover portion and an upper end portion of the cylindrical portion, The first cover portion is an upper wall having an engagement hole and attached to the upper end of the cylindrical portion in a state where the upper end of the cylindrical portion is inserted into the engagement hole; a holding hole that penetrates the upper wall and holds a pipe through which a portion of the installation that is in the roof space is inserted; an outer cylindrical wall that hangs down from the upper wall at a position outside the retaining hole and surrounds the cylindrical portion;

2. 2. The installation equipment according to claim 1, wherein the tubular portion has a base portion that protrudes in a brim-like manner from the lower end of the tubular portion, and the base portion is fixed to the roof by being placed on an upper wall surface of the roof.

3. 2. The installation equipment according to claim 1, wherein a first sealant is attached to an upper end of the tubular portion to seal a gap between the upper end of the tubular portion and an edge of the engagement hole.

4. the second cover portion has a cylindrical body portion and a ceiling portion that seals an upper end opening of the body portion, The installation equipment according to claim 1 , wherein the upper wall of the first cover part and an upper end of the tubular part are housed within the trunk part.

5. The outer peripheral wall of the first cover portion is a first portion forming an upper portion of the outer peripheral wall; a second portion that forms a lower portion of the outer peripheral wall and has an outer diameter larger than that of the first portion, 5. The installation equipment according to claim 4, wherein the first portion is inserted inside a body portion of the second cover portion and fitted with the body portion.

6. the outer peripheral wall of the first cover portion further has a step provided between the first portion and the second portion and extending in a radial direction of the outer peripheral wall, 6. The installation equipment according to claim 5, wherein a second sealant is attached to a lower end of the first portion to seal a gap between an inner circumferential surface of the trunk portion and an outer circumferential surface of the first portion.

7. the upper end of the cylindrical portion is an open end, 2. The installation equipment according to claim 1, wherein the interior of the upper end of the tubular portion is filled with a non-flammable filling material through the open end.

8. 2. The installation equipment of claim 1, wherein the roof is a flat roof and the installation object is an electric cable.

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