Escape hatch mounting structure and escape hatch with mounting components

Abstract

To provide an evacuation hatch fitting structure capable of reducing a step part which is formed when an evacuation hatch is installed on an outdoor floor part, as much as possible, for improving appearance of the outdoor floor part where the evacuation hatch is installed, and improving safety.SOLUTION: There is provided an evacuation hatch fitting structure for an evacuation hatch 20 installed on an outdoor floor part 30, the evacuation hatch 20 is installed on the outdoor floor part 30 through a fitting member 10. The fitting member 10 comprises: a cylindrical part 11 which is fitted to an opening 30a formed on the outdoor floor part 30; and an outside protrusion part 12 which protrudes outward from the cylindrical part 11 and mounted on the outdoor floor part 30. The evacuation hatch 20 comprises a flange part 22 which protrudes outward. The outside protrusion part 12 is arranged between the outside floor part 30 and the flange part 22, and a protrusion dimension of the outside protrusion part is shorter than a protrusion dimension of the flange part 22.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to an attachment structure for an evacuation hatch and an attachment member. Evacuation hatch It relates thereto.

Background Art

[0002] In recent years, buildings with four or more stories have been constructed as wooden buildings. When constructing a building with four or more stories as a wooden building, it is essential not only to impart necessary earthquake resistance, fire resistance, and waterproof performance, but also to install evacuation facilities in outdoor areas such as balconies and outdoor corridors to ensure an evacuation route from upper floors. For example, Patent Document 1 describes an attachment structure for an evacuation hatch installed on a balcony floor of a wooden building. In this attachment structure, an annular attachment frame member is attached around a hatch attachment opening formed in the balcony floor, the attachment flange portion of the evacuation hatch is placed on the upper surface of the attachment frame member, and a driving fixing member is driven from the inner surface of the cylindrical main body frame of the evacuation hatch toward the inner surface of the hatch attachment opening to fix the evacuation hatch to the hatch attachment opening.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In Patent Document 1, the escape hatch is mounted on the upper surface of a mounting frame member attached to the upper surface of the balcony floor, and the mounting frame member protrudes outward from the mounting flange portion of the escape hatch, resulting in a two-step difference in the step formed between the upper surface of the balcony floor and the upper surface of the mounting flange portion. If such a large step (multiple steps) is formed in an outdoor area, it will not only be unsightly but can also become an obstacle for walking, so it is desirable to make the step as small as possible.

[0005] This invention was made in view of the above circumstances, and its objective is to improve the appearance and safety of the outdoor floor area where the escape hatch is installed. [Means for solving the problem]

[0006] The invention described in claim 1 is, for example, as shown in Figures 1 to 7, A mounting structure for an escape hatch 20 installed on an outdoor floor 30, The escape hatch 20 is equipped with a flange portion 22 that protrudes outward and is installed on the outdoor floor portion 30 via a mounting member 10. The aforementioned mounting member 10 is A cylindrical portion 11 that is fitted into the opening 30a formed in the outdoor floor portion 30, It comprises an outer overhang 12 that extends outward from the cylindrical portion 11 and rests on the outdoor floor portion 30, The outer overhang portion 12 is positioned between the outdoor floor portion 30 and the flange portion 22, and its overhang dimension is set to be shorter than that of the flange portion 22. Occasionally, The mounting member 10 is fixed to the outdoor floor portion 30 by driving a fixing material 15 into the outdoor floor portion 30 from the inner surface of the cylindrical portion 11 toward the outdoor floor portion 30. The escape hatch 20 comprises a cylindrical main frame 21, and the outer surface of the main frame 21 is supported by the mounting member 10 in a state where it faces the inner surface of the cylindrical portion 11 and the head of the fixing material 15 driven in from the inner surface. It is characterized by being present.

[0007] According to the invention described in claim 1, the outer overhang portion 12 of the mounting member 10 is positioned between the outdoor floor portion 30 and the flange portion 22 of the escape hatch 20, and the overhang dimension is set to be shorter than that of the flange portion 22 of the escape hatch 20, so that the number of steps in the step formed between the upper surface of the outdoor floor portion 30 and the upper surface of the flange portion 22 is one. Therefore, compared to the case where there are multiple steps in the step, it is easy to minimize the step formed by installing the escape hatch 20 on the outdoor floor portion 30, so that the appearance of the outdoor floor portion 30 on which the escape hatch 20 is installed can be improved and safety can be enhanced. Furthermore, the mounting member 10 is fixed to the outdoor floor 30 by driving a fixing material 15 into the outdoor floor 30 from the inner surface of the cylindrical portion 11. The escape hatch 20 has a cylindrical main frame 21, and the outer surface of the main frame 21 is supported by the mounting member 10 in a state where it faces the inner surface of the cylindrical portion 11 and the head of the fixing material 15 driven in from the inner surface. As a result, the head of the driven fixing member (fixing material 15) does not protrude from the inner surface of the main frame 21. In this way, by fixing the escape hatch 20 via the mounting member 10 rather than fixing it directly to the outdoor floor 30, it is possible to minimize the protrusions formed on the inner surface of the main frame 21, thereby improving the appearance of the descent passage (the space enclosed by the side walls that make up the main frame 21) and enhancing safety.

[0010] Claim 2 The invention described above is, for example, as shown in Figures 1 to 5, Claim 1 In the mounting structure of the escape hatch 20 described above, The aforementioned escape hatch 20 is An escape ladder 24 fixed to the main frame 21, The main frame 21 is equipped with a reinforcing member 26 that reinforces at least the portion (one side wall 21a) to which the escape ladder 24 is fixed, The flange portion 22 is characterized in that it is provided extending outward from the upper end of the main frame 21.

[0011] Claim 2 According to the invention described above, the escape hatch 20 includes a flange portion 22 that extends outward from the upper end of the main frame 21, an escape ladder 24 fixed to the main frame 21, and a reinforcing member 26 that reinforces at least the portion of the main frame 21 to which the escape ladder 24 is fixed (one side wall 21a). Therefore, it is possible to suppress the flapping of the main frame 21 (especially one side wall 21a) that may occur when the escape ladder 24 is lowered.

[0012] Claim 3 The invention described above is, for example, as shown in Figures 1 to 7, Claim 2 In the mounting structure of the escape hatch 20 described above, The mounting member 10 is an inner overhanging portion 13 that projects inward from the lower end of the cylindrical portion 11 to support the main body frame 21 of the evacuation hatch 20, and a support member 14 provided at the central portion in the vertical direction of the cylindrical portion 11 to support the reinforcing member 26 of the evacuation hatch 20, and is provided with The outer overhanging portion 12 projects outward from the upper end of the cylindrical portion 11 to support the flange portion 22 of the evacuation hatch 20.

[0013] Claim 3 According to the invention described in the claim, since the mounting member 10 supports the evacuation hatch 20 at three points: the upper end (outer overhanging portion 12), the lower end (inner overhanging portion 13), and the central portion in the vertical direction (support member 14) of the cylindrical portion 11, the installation state of the evacuation hatch 20 can be made firm and stable.

[0014] Claim 4 In the invention described in the claim, as shown in FIGS. 2 and 4, for example, Claim 3 In the mounting structure of the evacuation hatch 20 described in the claim, the support member 14 and the reinforcing member 26 are connected in a state where the reinforcing member 26 is placed on the support member 14. <00000​​​​​​​​​​​​​​The floor main body 31 that constitutes the outdoor floor portion 30 has its upper surface, lower surface, and the side surface of the opening 30a covered by a waterproof sheet 36. Between the side surface of the opening 30a and the waterproof sheet 36 that covers the side surface, a water drainage member 37 is provided, the lower end of which protrudes downward from the outdoor floor portion 30.

[0017] Claim 5 According to the invention described in the claim, the floor main body 31 that constitutes the outdoor floor portion 30 has its upper surface, lower surface, and the side surface of the opening 30a covered by a waterproof sheet 36. Between the side surface of the opening 30a and the waterproof sheet 36 that covers the side surface, a water drainage member 37 is provided, the lower end of which protrudes downward from the outdoor floor portion 30. Therefore, the drainage of rainwater and the like at the lower edge of the opening 30a can be improved, and the waterproof performance of the outdoor floor portion 30 can be enhanced.

[0018] Claim 6 The invention described in the claim is, for example, as shown in FIGS. 1 to 7, Escape hatch 20 and the aforementioned A mounting member 10 for attaching the escape hatch 20 to the outdoor floor portion 30 Escape hatch with mounting hardware, equipped with which comprises The aforementioned mounting member 10 is a cylindrical portion 11 fitted into an opening 30a formed in the outdoor floor portion 30, and an outer protruding portion 12 that protrudes outward from the cylindrical portion 11 and is placed on the outdoor floor portion 30. The outer protruding portion 12 is disposed between the outdoor floor portion 30 and the flange portion 22 of the escape hatch 20, and is set to have a shorter protruding dimension than the flange portion 22. Occasionally, The mounting member 10 is fixed to the outdoor floor portion 30 by driving a fixing material 15 into the outdoor floor portion 30 from the inner surface of the cylindrical portion 11 toward the outdoor floor portion 30. The escape hatch 20 comprises a cylindrical main frame 21, and the outer surface of the main frame 21 is supported by the mounting member 10 in a state where it faces the inner surface of the cylindrical portion 11 and the head of the fixing material 15 driven in from the inner surface. This is the characteristic.

[0019] Claim 6According to the invention described above, the outer overhang portion 12 of the mounting member 10 is positioned between the outdoor floor portion 30 and the flange portion 22 of the escape hatch 20, and the overhang dimension is set to be shorter than that of the flange portion 22 of the escape hatch 20, so that the number of steps in the step formed between the upper surface of the outdoor floor portion 30 and the upper surface of the flange portion 22 is one. Therefore, compared to the case where there are multiple steps in the step, it is easy to minimize the step formed by installing the escape hatch 20 on the outdoor floor portion 30, so that the appearance of the outdoor floor portion 30 on which the escape hatch 20 is installed can be improved and safety can be enhanced. Furthermore, the mounting member 10 is fixed to the outdoor floor 30 by driving a fixing material 15 into the outdoor floor 30 from the inner surface of the cylindrical portion 11. The escape hatch 20 has a cylindrical main frame 21, and the outer surface of the main frame 21 is supported by the mounting member 10 in a state where it faces the inner surface of the cylindrical portion 11 and the head of the fixing material 15 driven in from the inner surface. As a result, the head of the driven fixing member (fixing material 15) does not protrude from the inner surface of the main frame 21. In this way, by fixing the escape hatch 20 via the mounting member 10 rather than fixing it directly to the outdoor floor 30, it is possible to minimize the protrusions formed on the inner surface of the main frame 21, thereby improving the appearance of the descent passage (the space enclosed by the side walls that make up the main frame 21) and enhancing safety. [Effects of the Invention]

[0020] According to the present invention, it is possible to improve the appearance of the outdoor floor area where the escape hatch is installed, while also enhancing safety. [Brief explanation of the drawing]

[0021] [Figure 1] This is a side cross-sectional view illustrating an example of the mounting structure for an escape hatch. [Figure 2] This is another side cross-sectional view illustrating an example of the mounting structure for an escape hatch. [Figure 3] This is an enlarged view of the main part of Figure 1. [Figure 4] This is an enlarged view of the main part in Figure 2. [Figure 5] (a) is a plan view illustrating an example of the mounting structure of an escape hatch, and (b) is a floor view showing an example of the mounting structure of an escape hatch. [Figure 6] This is a plan view illustrating an example of mounting components for an escape hatch. [Figure 7] This diagram illustrates an example of a mounting component for an escape hatch; (a) is a cross-sectional view AA in Figure 6, (b) is a cross-sectional view BB in Figure 6, and (c) is a cross-sectional view CC in Figure 6. [Modes for carrying out the invention]

[0022] Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below are subject to various technically preferred limitations for carrying out the present invention, but the technical scope of the present invention is not limited to the following embodiments and illustrated examples. Note that the directions in the following embodiments and illustrated examples are set solely for the purpose of explanation. In this embodiment, the depth direction of the escape hatch 20 is defined as the front-to-back direction (the indoor side is the rear, and the outdoor side is the front), the width direction of the escape hatch 20 is defined as the left-to-right direction, and the thickness direction of the outdoor floor portion 30 (the height direction of the building in which the escape hatch 20 is installed) is defined as the up-and-down direction.

[0023] In Figures 1 to 4, reference numeral 10 indicates a mounting member. The mounting member 10 is a member for attaching the escape hatch 20 to the outdoor floor 30 of the building. The building on which the escape hatch 20 is installed is a multi-story building designated as a residence. The residence may be a detached house or an apartment building (multi-unit dwelling) with multiple dwelling units. In this embodiment, the building is designated as a wooden detached house of four stories or more, but it is not limited to this, and may be a detached house with a mixed structure combining wood and non-wood (reinforced concrete, steel frame, etc.).

[0024] Such buildings have an outdoor floor section 30 that is provided between the wall (exterior wall) of the lower floor and the wall (exterior wall) of the upper floor and extends outwards (towards the front). Since the outdoor floor section 30 is provided between the wall of the lower floor and the wall of the upper floor in the building, it is integrated with the building's structure. In other words, the outdoor floor section 30 constitutes the building's structure. Furthermore, the outdoor floor area 30 is located on at least a floor above the first floor and is used as a balcony or outdoor corridor floor. An escape hatch 20 equipped with a foldable escape ladder 24 is installed in the outdoor floor area 30.

[0025] In this embodiment, the floor body 31 of the outdoor floor section 30 is made of wooden building panels. A building panel is constructed by assembling vertical and horizontal frame members 31a (i.e., core members) into a rectangular shape, and then assembling auxiliary cross members vertically and horizontally inside the rectangular frame to form a frame body. Face materials 31b are attached to one or both sides of this frame body, resulting in a hollow internal structure. Furthermore, insulation materials such as glass wool or rock wool are usually installed in the hollow internal portion. The exterior wall itself is also constructed from similar building panels.

[0026] In this embodiment, the floor body 31 (and wall body) is made of building panels, but it is not limited to this. In other words, in this embodiment, the floor on which the outdoor floor section 30 is provided and the floor directly below it are constructed at least by the so-called panel construction method, but they may also be constructed by other conventionally known construction methods such as the post-and-beam construction method, the wall construction method, or the two-by-four construction method. In that case, since building panels are not used, the floor body 31 is composed of joists (i.e., core material) and floorboards.

[0027] The outdoor floor section 30 has a rectangular opening 30a into which the mounting member 10 for the escape hatch 20 is fitted. Specifically, a rectangular opening is formed in the floor body 31 by assembling multiple frame members 31a, and this opening is the opening 30a of the outdoor floor section 30. In other words, the opening 30a has four sides and is a rectangular through-hole that penetrates the outdoor floor section 30 in the thickness direction (vertical direction).

[0028] The floor body 31 is covered by a surface layer that constitutes the surface of the floor body 31. Such a surface layer includes, for example, a fire-resistant surface material 32 made of gypsum board, an insulating panel 33 made of, for example, Styrofoam (registered trademark), a first base plywood 34, a second base plywood 35, and so on. Other elements such as a waterproof sheet 36 and a flashing material 37 may also be included. To describe the surface layer in detail, the floor body 31 is covered on its top and bottom surfaces and the sides of the opening 30a by two layers of fire-resistant material 32. Hereinafter, of the two layers of fire-resistant material 32, the fire-resistant material 32 on the floor body 31 side will be referred to as the inner fire-resistant material 32, and the other fire-resistant material 32 will be referred to as the outer fire-resistant material 32.

[0029] The fire-resistant material 32 covering the side of the opening 30a has a lower end surface that is flush with the surface (lower surface) of the outer fire-resistant material 32 covering the lower surface of the floor body 31. In addition, of the fire-resistant material 32 covering the side of the opening 30a, the upper end surface of the inner fire-resistant material 32 is flush with the upper surface of the floor body 31, and the upper end surface of the outer fire-resistant material 32 is flush with the upper surface of the inner fire-resistant material 32 covering the upper surface of the floor body 31. The fire-resistant material 32 covering the upper surface of the floor body 31 is positioned to straddle the upper surface of the floor body 31 and the upper end surface of the fire-resistant material 32 covering the side surface of the opening 30a. Specifically, of the fire-resistant material 32 covering the upper surface of the floor body 31, the inner fire-resistant material 32 has a side end surface on the central side of the opening 30a that is flush with the central side surface of the inner fire-resistant material 32 covering the side surface of the opening 30a, and the outer fire-resistant material 32 has a side end surface on the central side of the opening 30a that is flush with the surface (central side surface of the opening 30a) of the outer fire-resistant material 32 covering the side surface of the opening 30a.

[0030] An insulating panel 33 is provided on top of the fire-resistant surface material 32 that covers the upper surface of the floor body 31, avoiding the opening 30a. The insulation panel 33 is a water-sloping insulation panel with an inclined upper surface, making it easy to create a water slope on the outdoor floor 30. In this embodiment, the insulation panel 33 has an upper surface that slopes downward from the rear (indoor side) to the front (outdoor side).

[0031] A first base plywood 34 is provided on the surface side (center side of the opening 30a) of the fire-resistant material 32 that covers the side of the opening 30a. A second base plywood 35 is provided on the surface side (upper side) of the fire-resistant material 32 that covers the upper surface of the floor body 31. As described above, an insulating panel 33 is provided on top of the fire-resistant material 32 that covers the upper surface of the floor body 31, so the second base plywood 35 is provided on top of the insulating panel 33. Furthermore, the upper end of the first base plywood 34 and the side end of the second base plywood 35 on the central side of the opening 30a are adjacent, and the surface of the first base plywood 34 (the surface on the central side of the opening 30a) and the side end surface of the second base plywood 35 on the central side of the opening 30a are flush. In addition, the lower end surface of the first base plywood 34 is flush with the lower end surface of the fire-resistant material 32 that covers the side of the opening 30a.

[0032] As described above, the first and second plywood panels 34 and 35 are adjacent to each other, so their surfaces are continuous. A waterproof sheet 36 is continuously attached to the surfaces of these first and second plywood panels 34 and 35. The waterproof sheet 36 is also attached to the surface side of the walls (exterior walls) of the upper and lower floors, and is continuous with the waterproof sheet 36 on the outdoor floor 30 side. Furthermore, a breathable waterproof sheet or exterior wall finishing material is appropriately provided on the surface side of the waterproof sheet 36 attached to the surface side of the walls (exterior walls) of the upper and lower floors.

[0033] Between the lower end of the first base plywood 34 and the waterproof sheet 36, a flashing material 37 is provided, the lower end of which protrudes below the lower end of the first base plywood 34 and the fire-resistant surface material 32 that covers the underside of the floor body 31. Rainwater adhering to the waterproof sheet 36 of the opening 30a flows down to the lower end of the flashing material 37 and then falls downwards, so it is less likely to seep between the first base plywood 34 and the waterproof sheet 36, or between the first base plywood 34 and the fire-resistant surface material 32, resulting in excellent waterproofing.

[0034] A floor finishing material (not shown) is provided on top of the second base plywood 35 (on top of the waterproof sheet 36). This floor finishing material is positioned to avoid the opening 30a and the escape hatch 20, and its dimensions are set so that there is no large gap between it and the escape hatch 20. Furthermore, the dimensions of this floor finishing material are set so that there is no large step between it and the escape hatch 20. Specifically, for example, the thickness of the floor finishing material is set to be longer than the distance between the protruding tip of the flange portion 22 (described later) and the upper surface (waterproof sheet 36) of the outdoor floor portion 30.

[0035] An escape hatch 20, which is an escape device, is installed in the outdoor floor section 30 configured as described above. The escape hatch 20 is entirely constructed of metal, such as stainless steel or steel, and, as shown in Figures 1 to 5, comprises a cylindrical main frame 21, a flange portion 22, a protruding portion 23, and an escape ladder 24.

[0036] The main frame 21 is positioned within the opening 30a and is formed in a rectangular tube shape corresponding to the shape of the opening 30a, with openings at the top and bottom, allowing people and objects to pass through in the vertical direction. In other words, the main frame 21 is composed of four side walls. The upper opening of the main frame 21 can be opened and closed by the upper cover 20a, and the lower opening can be opened and closed by the lower cover 20b. The top cover 20a is a single-opening type lid and has sufficient rigidity to prevent deformation even when a person stands on it. The escape hatch 20 in this embodiment is equipped with a child lock 20d, and the top cover 20a cannot be opened unless the child lock 20d is released.

[0037] The lower cover 20b is also a single-opening cover and is connected to the upper cover 20a by a linkage device 20c. That is, the lower cover 20b opens simultaneously with the opening of the upper cover 20a and closes simultaneously with the closing of the upper cover 20a by the linkage device 20c. The upper cover 20a is mandatory, but the lower cover 20b may be omitted, in which case the linkage device 20c can also be omitted.

[0038] The flange portion 22 is located above the outdoor floor portion 30 when the main frame 21 is positioned within the opening 30a, and protrudes outward (towards the floor body 31) from the upper end of the side wall constituting the main frame 21. In this embodiment, the flange portion 22 is provided on the upper end of the main frame 21 (directly below the peripheral edge of the upper cover 20a) and extends outward around its entire circumference. The flange portion 22 is integrally provided with respect to the main frame 21. That is, the main frame 21 and the flange portion 22 may be formed by bending, or the flange portion 22 may be joined to the main frame 21 by welding or the like. A sealant 38 is filled between the protruding tip of the flange portion 22 and the upper surface (waterproof sheet 36) of the outdoor floor portion 30. Specifically, the protruding tip of the flange portion 22 is spaced apart from the upper surface (waterproof sheet 36) of the outdoor floor portion 30, and the sealant 38 is filled in this spaced-away area.

[0039] The protruding portion 23 is located within the opening 30a when the main frame 21 is positioned within the opening 30a, and it protrudes outward (towards the floor body 31) from the lower end of the side wall constituting the main frame 21. In other words, the protruding portion 23 has the same protruding direction (overhang direction) as the flange portion 22, and its protruding dimension (overhang dimension) is set to be shorter than that of the flange portion 22. In this embodiment, the protruding portion 23 is provided at the lower end of the main frame 21 in a state that it protrudes outward around its entire circumference. The protruding portion 23 is integrally provided with respect to the main frame 21. That is, the main frame 21 and the protruding portion 23 may be formed by bending, or the protruding portion 23 may be joined to the main frame 21 by welding or the like. The tip of the protruding portion 23 is bent upward. That is, the protruding portion 23 is formed in an L-shape in cross-section. In this embodiment, the protruding portion 23 is provided at the lower end of the main frame 21, extending outward around its entire circumference.

[0040] The escape ladder 24 is a foldable ladder that extends downward when in use and is attached to one of the four side walls 21a that make up the main frame 21. The escape ladder 24 in this embodiment is configured to allow for wire winding, and can be folded by winding the wire with the winding mechanism. The escape ladder 24 is fixed to the inner surface (the surface on the central side of the opening 30a) of one side wall 21a that constitutes the main frame 21 by mounting bolts 25. Specifically, the escape ladder 24 has through holes through which the mounting bolts 25 pass, and the one side wall 21a of the main frame 21 also has through holes through which the mounting bolts 25 pass. The mounting bolts 25 are then passed through the through holes in the one side wall 21a of the main frame 21 and the through holes in the escape ladder 24, and screwed into nuts 25a located on the inner surface of the one side wall 21a.

[0041] Furthermore, the escape hatch 20 is equipped with a reinforcing member 26 that reinforces one side wall 21a of the main frame 21. In other words, the escape hatch 20 of this embodiment suppresses deformation of the one side wall 21a (especially deformation in the front-rear direction) by the reinforcing member 26, thereby suppressing the flapping of the main frame 21 (especially the one side wall 21a) that may occur when the escape ladder 24 is lowered. The reinforcing member 26 is an L-shaped member in cross-section, comprising a first plate portion 26a that contacts the outer surface (the surface on the floor body 31 side) of one side wall 21a, and a second plate portion 26b that extends outward (towards the floor body 31 side) from the lower end of the first plate portion 26a.

[0042] The first plate portion 26a has through holes through which mounting bolts 25 are passed. That is, the mounting bolts 25 are passed through through holes in the main frame 21 and through holes in the escape ladder 24, as well as through holes provided in the first plate portion 26a of the reinforcing member 26. As a result, the escape ladder 24 is fixed to the inner surface of one side wall 21a of the main frame 21 (the surface on the side facing the center of the opening 30a), and the reinforcing member 26 is fixed to the outer surface of one side wall 21a (the surface facing the main floor 31). The reinforcing member 26 may also be fixed to the main frame 21 by welding or the like. In this way, by providing through holes in the reinforcing member 26 and passing the mounting bolts 25 through not only the through holes in the main frame 21 but also the through holes in the reinforcing member 26, the through holes in the main frame 21 can be protected, making it possible to maintain a firm fixing state by the mounting bolts 25 for a long period of time. Furthermore, the second plate portion 26b of the reinforcing member 26 has a through hole through which a resin (or metal, etc.) fitting material 27 is passed.

[0043] The escape hatch 20, configured as described above, is installed on the outdoor floor 30 via a mounting member 10, which is a support bracket frame for the escape hatch 20. The mounting member 10 is entirely made of a metal such as stainless steel or steel, and as shown in Figures 1 to 7, it comprises a cylindrical portion 11, an outer protruding portion 12, and an inner protruding portion 13.

[0044] The cylindrical portion 11 is positioned within the opening 30a and is formed in a rectangular tube shape corresponding to the shape of the opening 30a, with openings at the top and bottom. In other words, the cylindrical portion 11 is composed of four side walls. The dimensions of the cylindrical portion 11 are set so that the side walls constituting the cylindrical portion 11 are positioned between the outdoor floor portion 30 (specifically, the waterproof sheet 36 covering the side surface of the opening 30a) and the side walls constituting the main frame 21 of the escape hatch 20.

[0045] The outer overhang portion 12 is the part that rests on the outdoor floor portion 30 when the cylindrical portion 11 is positioned inside the opening 30a, and it protrudes outward (towards the floor body 31) from the upper end of the side wall constituting the cylindrical portion 11. In other words, the outer overhang portion 12 has the same protruding direction (overhang direction) as the flange portion 22 of the escape hatch 20. In this embodiment, the outer overhang portion 12 is provided on the upper end of the cylindrical portion 11, protruding outward around its entire circumference. The outer protrusion 12 is integrally provided with respect to the cylindrical portion 11. That is, the cylindrical portion 11 and the outer protrusion 12 may be formed by bending, or the outer protrusion 12 may be joined to the cylindrical portion 11 by welding or the like. The outer overhang portion 12 is connected to the flange portion 22 of the escape hatch 20 by a connecting material 12a such as a Sunlock, with the flange portion 22 of the escape hatch 20 resting on the outer overhang portion 12. Specifically, the tip of the outer overhang portion 12 is bent upward to form a bent portion, and a through hole is formed in this bent portion through which the connecting material 12a passes.

[0046] The outer overhang portion 12 is positioned along the edge of the opening 30a, and a sealing material 38 is provided along the edge of the opening 30a at a position outside the outer overhang portion 12. In other words, the protruding dimension (overhang dimension) of the outer overhang portion 12 is set to be shorter than the protruding dimension (overhang dimension) of the flange portion 22, and the flange portion 22 of the escape hatch 20 is positioned to straddle both the outer overhang portion 12 and the sealing material 38.

[0047] The inner protrusion 13 is the portion located within the opening 30a when the cylindrical portion 11 is positioned within the opening 30a, and it protrudes inward (towards the center of the opening 30a) from the lower end of the side wall constituting the cylindrical portion 11. In this embodiment, the inner protrusion 13 is provided at the lower end of the cylindrical portion 11, protruding inward around its entire circumference. The inner protrusion 13 is integrally provided with respect to the cylindrical portion 11. That is, the cylindrical portion 11 and the inner protrusion 13 may be formed by bending, or the inner protrusion 13 may be joined to the cylindrical portion 11 by welding or the like. The inner overhang 13 is connected to the main frame 21 of the escape hatch 20 by a connecting member 13a such as a Sunlock when the main frame 21 of the escape hatch 20 is placed on the inner overhang 13, that is, when the upper surface of the inner overhang 13 is in contact with the protruding part 23 of the escape hatch 20. Specifically, the tip of the inner overhang 13 is bent upward to form a bent portion. This bent portion is provided so as to face the inner surface of the side wall constituting the main frame 21 when the main frame 21 is placed on the inner overhang 13, and a through hole is formed in this bent portion through which the connecting member 13a passes. In this embodiment, for example, as shown in Figures 3 and 4, the side walls of the main frame 21 other than one side wall 21a and the tip (bent portion) of the inner overhang 13 are connected by a connecting member 13a, but the embodiment is not limited to this.

[0048] Furthermore, the mounting member 10 includes a support member 14 that supports the escape hatch 20 from below the reinforcing member 26. The support member 14 is attached to one side wall 11a of the cylindrical portion 11. This one side wall 11a is one of the four side walls constituting the cylindrical portion 11, and is the side wall facing the outer surface of one side wall 21a of the escape hatch 20 (the side wall to which the reinforcing member 26 is attached). The support member 14 is a U-shaped member in cross-section, comprising a joining plate portion 14a that contacts the inner surface of one side wall 11a (the surface on the central side of the opening 30a), an upper plate portion 14b that extends inward (towards the central side of the opening 30a) from the upper end of the joining plate portion 14a, and a lower plate portion 14c that extends inward from the lower end of the joining plate portion 14a. The support member 14 is integrally provided with the cylindrical portion 11 by joining the joining plate portion 14a to one side wall 11a of the cylindrical portion 11 by welding or the like.

[0049] The upper plate portion 14b is connected to the reinforcing member 26 of the escape hatch 20 by a fitting material 27 when the reinforcing member 26 of the escape hatch 20 is placed on the upper plate portion 14b, that is, when the upper surface of the upper plate portion 14b and the second plate portion 26b of the reinforcing member 26 are in contact. Specifically, the upper plate portion 14b has a through hole 14d through which the fitting material 27 passes. In this way, by passing the fitting material 27 through both the through hole in the second plate portion 26b and the through hole 14d in the upper plate portion 14b, it is possible to prevent the reinforcing member 26 from shifting relative to the support member 14 (especially in the front-to-back direction). This increases the effect of suppressing the deformation of one side wall 21a by the reinforcing member 26 (especially in the front-to-back direction), making it possible to effectively suppress the flapping of the main frame 21 that may occur when the escape ladder 24 is lowered.

[0050] The mounting member 10 is fixed to the outdoor floor section 30 by driving the fixing material 15 from the inner surface of the side wall constituting the cylindrical section 11 toward the core material (frame material 31a) constituting the floor body 31. The fixing material 15 is, for example, a coach bolt, and is passed through each of the through holes 11b formed in the four side walls that make up the cylindrical portion 11. The fixing material 15 penetrates the first base plywood 34 and the two layers of fire-resistant surface material 32, and is driven towards the frame material 31a, which is the core material of the floor body 31. In this embodiment, the fixing material 15 also penetrates the frame material 31a.

[0051] Here, the side surface of the opening 30a and the peripheral edge of the opening 30a on the upper surface of the floor body 31 are covered with a double layer of waterproof sheeting 36. Specifically, of the waterproof sheeting (first waterproof sheeting) 36 attached to the surfaces of the first base plywood 34 and the second base plywood 35, the portion facing the outer overhang 12 of the mounting member 10, the portion covering the surface of the first base plywood 34, and the portion covering the flashing material 37 are covered with a second waterproof sheeting 36. In this way, by attaching the second waterproof sheeting 36 to at least the portion of the first waterproof sheeting 36 that may come into contact with the mounting member 10 and the portion through which the fixing material 15 penetrates, it is possible to improve the waterproofness of the installation location of the escape hatch 20 (the installation location of the mounting member 10) on the outdoor floor 30.

[0052] Furthermore, an adjustment member 16 is provided between the waterproof sheet (second waterproof sheet) 36 attached to the surface of the first base plywood 34 and the side wall constituting the cylindrical portion 11 of the mounting member 10. The fixing member 15 driven from the cylindrical portion 11 into the outdoor floor portion 30 passes through the adjustment member 16. As mentioned above, the heat-insulating panel 33 of this embodiment has an inclined upper surface. On the other hand, the mounting member 10 of this embodiment has an outer overhang 12 that protrudes perpendicularly to the side wall constituting the cylindrical portion 11, and an inner overhang 13 that also protrudes perpendicularly to the side wall constituting the cylindrical portion 11. Therefore, when the cylindrical portion 11 is fitted into the opening 30a and the outer overhang 12 is placed on the outdoor floor portion 30, the distance between the side surface of the opening 30a and the side wall constituting the cylindrical portion 11 will vary depending on the location.

[0053] Specifically, in this embodiment, the upper surface of the insulation panel 33 slopes downward from the rear (indoor side) to the front (outdoor side). For example, as shown in Figure 4, the distance between the indoor side of the opening 30a and the indoor side wall (one side wall 11a) of the side wall constituting the cylindrical portion 11 gradually narrows downwards, while the distance between the outdoor side of the opening 30a and the outdoor side wall of the side wall constituting the cylindrical portion 11 gradually widens downwards. In this embodiment, an adjustment material 16 with an appropriately adjusted thickness is placed between the through hole 11b and the outdoor floor portion 30 so that this state is maintained even when the fixing material 15 is driven in. As a result, even when the fixing material 15 is driven in, the state in which the outer protruding portion 12 and the cylindrical portion 11 are perpendicular to each other, and the inner protruding portion 13 and the cylindrical portion 11 are perpendicular to each other is maintained. Furthermore, in this embodiment, the escape hatch 20 has a flange portion 22 that protrudes perpendicularly to the side wall constituting the main frame 21, and the protruding portion 23 also protrudes perpendicularly to the side wall constituting the main frame 21. Therefore, in this embodiment, the escape hatch 20 is installed on the outdoor floor portion 30 with the upper surface of the flange portion 22 substantially parallel to the upper surface of the insulation panel 33, but it is not limited to this, and for example, it may be installed on the outdoor floor portion 30 with the upper surface of the flange portion 22 horizontal.

[0054] Furthermore, in the mounting member 10 of this embodiment, the outer overhang portion 12 is integrally provided with respect to the cylindrical portion 11. That is, the left and right side walls constituting the cylindrical portion 11 and the portions of the outer overhang portion 12 that extend from the left and right side walls may be formed by bending or joined by welding or the like. Also, the front and rear side walls constituting the cylindrical portion 11 and the portions of the outer overhang portion 12 that extend from the front and rear side walls may be formed by bending or joined by welding or the like. Furthermore, in the mounting member 10 of this embodiment, as shown in Figure 6, the portions of the outer overhang 12 that extend from the left and right side walls have the same length (dimension in the front-to-back direction) as the left and right side walls that constitute the cylindrical portion 11, whereas the portions of the outer overhang 12 that extend from the front and rear side walls have a longer length (dimension in the left-to-right direction) than the front and rear side walls that constitute the cylindrical portion 11. The portions of the outer overhang 12 that extend from the front and rear side walls and the portions that extend from the left and right side walls have end faces that are in contact with each other (butted), and their upper surfaces are flush with each other, and their lower surfaces are flush with each other.

[0055] Furthermore, in the mounting member 10 of this embodiment, the inner protruding portion 13 is integrally provided with respect to the cylindrical portion 11. That is, the left and right side walls constituting the cylindrical portion 11 and the portions of the inner protruding portion 13 that extend from the left and right side walls may be formed by bending or joined by welding or the like. Also, the front and rear side walls constituting the cylindrical portion 11 and the portions of the inner protruding portion 13 that extend from the front and rear side walls may be formed by bending or joined by welding or the like. Furthermore, in the mounting member 10 of this embodiment, as shown in Figures 5(b) and 6, the portion of the inner protrusion 13 that extends from the front and rear side walls has the same length (horizontal dimension) as the front and rear side walls that constitute the cylindrical portion 11, while the portion of the inner protrusion 13 that extends from the left and right side walls has a shorter length (front-to-back dimension) than the left and right side walls that constitute the cylindrical portion 11. The end faces of the portion of the inner protrusion 13 that extends from the front and rear side walls and the portion that extends from the left and right side walls are in contact (butted), and the upper surfaces (surfaces that contact the protrusion 23) are flush with each other, and the lower surfaces are flush with each other.

[0056] Furthermore, in the mounting member 10 of this embodiment, as shown in Figure 5(b), the portion of the inner protruding part 13 that extends from the front and rear side walls and the left and right side walls that constitute the cylindrical part 11 are not joined, and a gap is provided, and these gaps serve as drainage 10a.

[0057] Furthermore, in the mounting member 10 of this embodiment, as described above, the tip of the inner protruding portion 13 is a bent portion. That is, the inner protruding portion 13 is provided with a bent portion. The bent portion provided in the part of the inner protruding portion 13 that extends from the rear side wall (one side wall 11a) is continuous with the bent portions provided in the parts of the inner protruding portion 13 that extend from the left and right side walls, and the bent portion provided in the part of the inner protruding portion 13 that extends from the front side wall is continuous with the bent portions provided in the parts of the inner protruding portion 13 that extend from the left and right side walls. In other words, in the part of the inner protruding portion 13 that extends from the front side wall constituting the cylindrical portion 11 and the part that extends from the rear side wall constituting the cylindrical portion 11, bent portions are provided in the parts excluding the left end and right end of those parts.

[0058] Next, an example of an installation procedure for installing the escape hatch 20 on the outdoor floor 30 via the mounting member 10 will be described. First, the outdoor floor section 30 is formed by attaching fire-resistant material 32, insulation panels 33, first base plywood 34, second base plywood 35, waterproof sheet 36, flashing material 37, etc. to the floor body 31. The waterproof sheet 36 installed on the side of the opening 30a and on the periphery of the opening 30a on the upper surface of the floor body 31 is made in double layers.

[0059] Next, the mounting member 10 is fixed to the outdoor floor section 30. Specifically, the cylindrical portion 11 of the mounting member 10 is fitted into the opening 30a of the outdoor floor portion 30, and the outer protruding portion 12 of the mounting member 10 is placed on the outdoor floor portion 30. Then, the adjustment material 16 is inserted between the surface of the outdoor floor portion 30 (waterproof sheet 36) and the through hole 11b of the cylindrical portion 11, and the fixing material 15 is driven in from the inner surface of the side wall constituting the cylindrical portion 11, through the through hole 11b and the adjustment material 16, toward the core material (frame material 31a in this embodiment) constituting the floor body 31, thereby fixing the mounting member 10 to the outdoor floor portion 30.

[0060] Next, the escape hatch 20 is fixed to the mounting member 10. Specifically, the main frame 21 of the escape hatch 20 is fitted into the cylindrical portion 11 of the mounting member 10, the flange portion 22 of the escape hatch 20 is placed on the outer overhang portion 12 of the mounting member 10, the protruding portion 23 of the escape hatch 20 is placed on the inner overhang portion 13 of the mounting member 10, and the reinforcing member 26 of the escape hatch 20 is placed on the support member 14 of the mounting member 10. As a result, the outer surface of the side wall constituting the main frame 21 of the escape hatch 20 faces the inner surface of the side wall constituting the cylindrical portion 11 of the mounting member 10 and the head of the fixing material 15 driven in from that inner surface. Then, the flange portion 22 and the outer overhang portion 12 are connected by the connecting member 12a, and the main frame 21 and the inner overhang portion 13 are connected by the connecting member 13a. Furthermore, loosen the nut 25a of the mounting bolt 25, hook the escape ladder 24 onto the mounting bolt 25, and then tighten the nut 25a to fix the escape ladder 24 to the main frame 21. Furthermore, a sealant 38 is filled between the protruding tip of the flange portion 22 and the upper surface (waterproof sheet 36) of the outdoor floor portion 30.

[0061] As described above, the installation of the escape hatch 20 creates an escape route that connects the upper part of the outdoor floor 30 to the lower part. In other words, it is possible to secure an escape route from the upper floor where the outdoor floor 30 is located to the lower floor. In this embodiment, the fitting material 27 is fitted into the reinforcing member 26 before the escape hatch 20 is placed on the mounting member 10 (before the reinforcing member 26 is placed on the support member 14), and then the reinforcing member 26 is placed on the support member 14 in that state, thereby fitting the fitting material 27 into the through hole 14d of the support member 14, but the embodiment is not limited to this.

[0062] The mounting structure and mounting member 10 of the escape hatch 20 of this embodiment provide the following excellent effects. In other words, the escape hatch 20 is equipped with a flange portion 22 that protrudes outward and is installed on the outdoor floor portion 30 via a mounting member 10. The mounting member 10 is equipped with a cylindrical portion 11 that fits into an opening 30a formed in the outdoor floor portion 30 and an outer overhang portion 12 that protrudes outward from the cylindrical portion 11 and rests on the outdoor floor portion 30. The outer overhang portion 12 is positioned between the outdoor floor portion 30 and the flange portion 22, and its overhang dimension is set to be shorter than that of the flange portion 22, so that the step formed between the upper surface of the outdoor floor portion 30 and the upper surface of the flange portion 22 is only one step. Therefore, compared to the case where there are multiple steps in the step, it is easy to minimize the step formed by installing the escape hatch 20 on the outdoor floor portion 30, so that the appearance of the outdoor floor portion 30 on which the escape hatch 20 is installed can be improved and safety can be enhanced.

[0063] Furthermore, the mounting member 10 is fixed to the outdoor floor 30 by driving a fixing material 15 from the inner surface of the cylindrical portion 11 (the inner surface of the side wall constituting the cylindrical portion 11) toward the outdoor floor 30. The escape hatch 20 is equipped with a cylindrical main frame 21, and the outer surface of the main frame 21 (the outer surface of the side wall constituting the main frame 21) is supported by the mounting member 10 in a state where it faces the inner surface of the cylindrical portion 11 (the inner surface of the side wall constituting the cylindrical portion 11) and the head of the fixing material 15 driven in from the inner surface. As a result, the head of the driven fixing member (fixing material 15) does not protrude from the inner surface of the main frame 21. For example, the escape hatch described in Patent Document 1 is fixed by driving a fixing member into the inner surface of the cylindrical frame toward the hatch mounting opening, so the head of the fixing member protrudes from the inner surface of the cylindrical frame. When a protrusion is formed on the inner surface of the cylindrical frame, i.e., the inner surface of the descent passage, it is not only unsightly, but it can also be an obstacle when using the escape hatch (when descending the escape ladder), so it is required to minimize the protrusion as much as possible. In contrast, as in this embodiment, by fixing the escape hatch 20 via the mounting member 10 rather than directly to the outdoor floor 30, it is possible to minimize the number of protrusions formed on the inner surface of the main frame 21. This improves the appearance of the descent passage (the space enclosed by the four side walls that make up the main frame 21) and enhances safety.

[0064] In this embodiment, the cylindrical portion 11 of the mounting member 10 is rectangular, but it is not limited to this. Any shape corresponding to the shape of the opening 30a may be used, for example, cylindrical. Furthermore, although the main frame 21 of the escape hatch 20 in this embodiment is rectangular, it is not limited to this, and any shape corresponding to the shape of the opening 30a may be, for example, cylindrical.

[0065] Furthermore, the escape hatch 20 includes a flange portion 22 that extends outward from the upper end of the main frame 21, an escape ladder 24 fixed to the main frame 21, and a reinforcing member 26 that reinforces at least the portion of the main frame 21 to which the escape ladder 24 is fixed (one side wall 21a). Therefore, it is possible to suppress the flapping of the main frame 21 (especially one side wall 21a) that may occur when the escape ladder 24 is lowered.

[0066] Furthermore, the mounting member 10 includes an outer overhang 12 that extends outward from the upper end of the cylindrical portion 11 to support the flange portion 22 of the escape hatch 20, an inner overhang 13 that extends inward from the lower end of the cylindrical portion 11 to support the main frame 21 of the escape hatch 20, and a support member 14 provided in the vertical center of the cylindrical portion 11 to support the reinforcing member 26 of the escape hatch 20. Therefore, since the mounting member 10 supports the escape hatch 20 at three points: the upper end (outer overhang 12), the lower end (inner overhang 13), and the vertical center (support member 14) of the cylindrical portion 11, the installation of the escape hatch 20 can be made strong and stable.

[0067] Furthermore, since the support member 14 of the mounting member 10 is connected to the reinforcing member 26 of the escape hatch 20 with the reinforcing member 26 resting on the support member 14, it is possible to prevent the reinforcing member 26 from shifting relative to the support member 14 (especially in the front-to-back direction). As a result, the reinforcing effect of the reinforcing member 26 (the effect of reinforcing one side wall 21a) is increased, making it possible to effectively suppress the flapping of the main frame 21 that may occur when the escape ladder 24 is lowered.

[0068] Furthermore, the floor body 31 constituting the outdoor floor section 30 is covered on its upper and lower surfaces and the side surface of the opening 30a by a waterproof sheet 36. Between the side surface of the opening 30a and the waterproof sheet 36 covering that side surface, a water drain material 37 is provided, the lower end of which protrudes below the outdoor floor section 30. This improves the drainage of rainwater and the like at the lower edge of the opening 30a, thereby improving the waterproof performance of the outdoor floor section 30.

[0069] Furthermore, since the wooden floor body 31 constituting the outdoor floor section 30 is covered on its top and bottom surfaces and the sides of the opening 30a with fire-resistant material 32, fire resistance can be reliably provided to the outdoor floor section 30. In addition, a first base plywood 34 and a second base plywood 35 are provided on the surface side of the fire-resistant material 32, and a waterproof sheet 36 is attached to the surfaces of the first base plywood 34 and the second base plywood 35, so that waterproof performance can be reliably provided to the outdoor floor section 30. Furthermore, since the mounting member 10 is fixed to the outdoor floor 30 by having its outer overhang 12 rest on the upper surface of the outdoor floor 30 and by driving the fixing material 15 from the inner surface of the cylindrical part 11 toward the core material (frame material 31a) that constitutes the floor body 31, the fixing position by the fixing material 15 can be set below the upper surface of the floor body 31. Therefore, it is not necessary to form a part where the fixing material 15 is driven above the upper surface of the floor body 31, making it easy to minimize the step formed by installing the escape hatch 20 on the outdoor floor 30.

[0070] For example, in Patent Document 1, when attaching the mounting frame member to the upper surface of the balcony floor, it is necessary to cover the mounting frame member with a fire-resistant board together with the balcony floor in order to provide fire resistance to the mounting frame member. However, this makes the structure more complex, so there is a desire to install an escape hatch with a simpler structure and improve ease of construction. In contrast, according to this embodiment, the installation of the mounting member 10 is as simple as placing the outer overhang portion 12 on the upper surface of the outdoor floor portion 30 and fixing the cylindrical portion 11 to the floor body 31 with the fixing material 15, and the installation of the escape hatch 20 is as simple as placing the flange portion 22 on the outer overhang portion 12 and connecting the upper part (flange portion 22) and lower part (lower end of the main frame 21) of the escape hatch 20 to the mounting member 10 with the connecting materials 12a and 13a, so the escape hatch 20 can be installed with a simpler structure and the workability can be improved. In addition, since the fixing material 15 penetrates the wooden adjustment material 16 and the first subfloor plywood 34 and is driven into the wooden floor body 31, the fixing strength of the mounting member 10 by the fixing material 15, and consequently the mounting strength of the escape hatch 20, can be increased.

[0071] Furthermore, the waterproof sheet 36 provided between the outer overhang 12 of the mounting member 10 and the floor body 31 is made up of two layers. That is, an additional waterproof sheet (second waterproof sheet 36) is provided between the outer overhang 12 and the upper surface of the outdoor floor 30 (first waterproof sheet 36), thereby improving the waterproof performance between the outer overhang 12 and the outdoor floor 30. Furthermore, the waterproofing performance between the outer overhang 12 and the outdoor floor 30 may be improved by providing a sealing material between the outer overhang 12 and the upper surface of the outdoor floor 30 (first waterproof sheet 36), instead of (or in addition to) the waterproof sheet (second waterproof sheet 36).

[0072] Furthermore, in the escape hatch 20, the flange portion 22 is provided extending outward from the upper end of the main frame 21. Therefore, compared to the case where, for example, the flange portion 22 is provided extending outward from the lower end or the vertical center of the main frame 21, the vertical dimension of the part of the main frame 21 located above the flange portion 22 can be reduced, thus minimizing the step formed by installing the escape hatch 20 on the outdoor floor 30. Furthermore, in the mounting member 10, the outer overhang portion 12 is provided extending outward from the upper end of the cylindrical portion 11. Therefore, compared to, for example, the case where the outer overhang portion 12 extends outward from the lower end or the vertical center of the cylindrical portion 11, the vertical dimension of the portion of the cylindrical portion 11 located above the outer overhang portion 12 can be reduced. As a result, the step formed by installing the mounting member 10 on the outdoor floor portion 30 can be minimized, and consequently, the step formed by installing the escape hatch 20 on the outdoor floor portion 30 can be minimized.

[0073] Furthermore, since a sealing material 38 is filled between the protruding tip of the flange portion 22 and the upper surface of the outdoor floor portion 30 (first waterproof sheet 36), the waterproof performance between the flange portion 22 and the outdoor floor portion 30, and between the outer overhang portion 12 and the outdoor floor portion 30 can be further improved. Furthermore, since an insulating panel 33 is provided on top of the fire-resistant surface material 32 covering the upper surface of the floor body 31, and a second base plywood 35 is provided on top of the insulating panel 33, this contributes to improving the fire resistance performance of the outdoor floor section 30. Furthermore, of the waterproof sheets 36 attached to the first base plywood 34 and the second base plywood 35, the waterproof sheet 36 attached to the part where the fixing material 15 penetrates is double-layered, thus improving the waterproof performance of the part where the fixing material 15 penetrates. [Explanation of symbols]

[0074] 10 Mounting components 11. Cylindrical part 12 Outer overhang 13 Inner protrusion 14 Support Member 15 Fixing material 20 Escape Hatch 21 Main frame 21a One side wall 22 Flange section 24 Evacuation ladder 26 Reinforcement members 30 Outdoor floor area 30a opening 31 Floor Unit 36 Waterproof Sheets 37 Drainage material

Claims

1. An escape hatch mounting structure installed on the outdoor floor, The escape hatch is equipped with a flange portion that protrudes outward and is installed on the outdoor floor via a mounting member. The aforementioned mounting member is A cylindrical part that is fitted into the opening formed in the outdoor floor, It comprises an outer overhang that extends outward from the cylindrical portion and rests on the outdoor floor, The aforementioned outer overhang is positioned between the outdoor floor portion and the flange portion, and its overhang dimension is set to be shorter than that of the flange portion. The mounting member is fixed to the outdoor floor by driving a fixing material into the outdoor floor from the inner surface of the cylindrical portion toward the outdoor floor. The mounting structure for an escape hatch is characterized in that the escape hatch comprises a cylindrical main frame, and the outer surface of the main frame is supported by the mounting member in a state where it faces the inner surface of the cylindrical portion and the head of the fixing material driven in from the inner surface.

2. In the escape hatch mounting structure described in claim 1, The aforementioned escape hatch is An escape ladder fixed to the aforementioned main frame, The main frame includes a reinforcing member that reinforces at least the portion to which the escape ladder is fixed, The mounting structure for an escape hatch is characterized in that the flange portion is provided extending outward from the upper end of the main frame.

3. In the escape hatch mounting structure described in claim 2, The aforementioned mounting member is An inner protrusion extending inward from the lower end of the cylindrical portion supports the main frame of the escape hatch, The cylindrical portion is provided with a support member located in the vertical center to support the reinforcing member of the escape hatch, The mounting structure for an escape hatch is characterized in that the outward protruding portion extends outward from the upper end of the cylindrical portion and supports the flange portion.

4. In the escape hatch mounting structure described in claim 3, An escape hatch mounting structure characterized in that the support member and the reinforcing member are connected while the reinforcing member is resting on the support member.

5. In the escape hatch mounting structure described in claim 1, The floor body constituting the outdoor floor section is covered on its upper and lower surfaces and the sides of the opening with a waterproof sheet. An escape hatch mounting structure characterized in that a water drain is provided between the side surface of the opening and the waterproof sheet covering the side surface, with the lower end of the drain protruding below the outdoor floor.

6. An escape hatch with a mounting member, comprising an escape hatch and a mounting member for attaching the escape hatch to an outdoor floor, The aforementioned mounting member is A cylindrical part that is fitted into the opening formed in the outdoor floor, It comprises an outer overhang that extends outward from the cylindrical portion and rests on the outdoor floor, The aforementioned outer overhang is positioned between the outdoor floor and the flange portion of the escape hatch, and its overhang dimension is set to be shorter than that of the flange portion. The mounting member is fixed to the outdoor floor by driving a fixing material into the outdoor floor from the inner surface of the cylindrical portion toward the outdoor floor. The escape hatch with mounting member is characterized in that it comprises a cylindrical main frame, and the outer surface of the main frame is supported by the mounting member in a state where it faces the inner surface of the cylindrical portion and the head of the fixing material driven in from the inner surface.

Images