Platform unit installation structure

Abstract

To enable a landing unit to be attached to the wall of an elevator shaft while covering the entire wall of the elevator shaft, including the edge of an opening for boarding and alighting, with a fire-resistant covering surface material. [Solution] The wall 3 of the elevator shaft 2 is covered with a fire-resistant coating surface material 4, and multiple openings 3a for boarding and alighting are formed in the wall 3. Landing unit units are arranged corresponding to the locations where the openings 3a are formed in the elevator shaft 2, and part of the landing unit is fixed to the wall 3 from the surface of the fire-resistant coating surface material 4 by fixing material 18.

Description

[Technical Field]

[0001] The present invention relates to an installation structure for a hall unit in which an opening / closing door device is provided in an elevator shaft. [Background technology]

[0002] BACKGROUND ART Conventionally, a technique is known in which a frame-shaped landing unit having a door that can be freely opened and closed is installed and fixed to the edge of an opening for boarding and alighting formed in the wall of an elevator shaft. In Patent Document 1, a three-sided jamb is fixed via plywood to a crosspiece that forms the edge of the entrance / exit opening in the wall of the elevator shaft, and a frame structure that supports the opening / closing doors of the hall unit so that they can be opened and closed is attached integrally to the elevator shaft side of the jamb.Furthermore, front panels such as gypsum board are attached to both the front and back sides of the elevator shaft wall to provide a fire-resistant covering. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 3002451 Summary of the Invention [Problem to be solved by the invention]

[0004] In the elevator shaft wall of Patent Document 1, the plywood interposed between the edge of the entrance opening and the jamb is provided to prevent gaps between the elevator shaft wall and the frame structure of the landing unit. Therefore, it is difficult to omit the plywood from the edge of the entrance opening, and no gypsum board is attached to the edge of the entrance opening. In other words, it is difficult to cover the entire elevator shaft wall with a fire-resistant covering surface material.

[0005] The present invention was made in consideration of the above circumstances, and its purpose is to enable the attachment of landing units to the wall of an elevator shaft while covering the entire wall of the elevator shaft, including the edges of the entrance and exit openings, with a fire-resistant coating surface material. [Means for solving the problem]

[0006] The invention described in claim 1 is, for example, as shown in Figs. 1 to 6, The wall 3 is covered with a fire-resistant covering surface material 4, The wall 3 has a plurality of openings 3a for boarding and alighting. The elevator shaft 2 has a corresponding opening 3a. The parking unit is placed A part of the landing unit (for example, a bracket 15) is fixed to the bearing by a fixing member 18. From the surface of the fire protection surface material 4 to the wall 3 Only on the two sides of the elevator shaft It is characterized by being fixed.

[0007] According to the invention recited in claim 1, a portion of the landing unit is fixed to the wall 3 from the surface of the fire-resistant coating surface material 4 by the fixing material 18, so that the wall 3 of the elevator shaft 2 can be covered with the fire-resistant coating surface material 4 while a portion of the landing unit is fixed to the wall 3 via the fire-resistant coating surface material 4. This makes it possible to install the landing unit inside the elevator shaft 2 with the entire wall 3 of the elevator shaft 2 covered with the fire-resistant coating surface material 4, and as a result, the fire resistance of the building 1 can be improved.

[0008] The invention described in claim 2 is, for example, as shown in Figures 1 to 6, in the installation structure of the landing unit described in claim 1, The landing unit includes: an opening / closing door device for opening and closing the opening 3a; and a base opening frame 10 on which the opening and closing door device is provided, The base opening frame 10 is an opening frame body 11 formed in a frame shape along the edge of the opening 3a; a bracket 15 joined to the opening frame body 11 for holding the opening frame body 11 on the side of the elevator shaft 2 of the wall 3 a; The multiple brackets 15 are in contact with the side of the elevator shaft 2 of the wall 3 and are fixed to the wall 3 from the surface of the fire-resistant coating surface material 4 by the fixing material 18.

[0009] According to the invention of claim 2, bracket 15 for holding opening frame body 11 on the side surface of wall 3a of elevator shaft 2 contacts the side surface of wall 3 of elevator shaft 2 and is fixed to wall 3 from the surface of fire-resistant coating surface material 4 by fasteners 18, so bracket 15 can be fixed to wall 3 via fire-resistant coating surface material 4 while covering the entire wall 3 of elevator shaft 2 with fire-resistant coating surface material 4. This makes it possible to install opening frame body 11 held by bracket 15, and ultimately an opening / closing door device, in elevator shaft 2 with wall 3 of elevator shaft 2 covered with fire-resistant coating surface material 4, and as a result, it is possible to improve the fire resistance of building 1.

[0010] The invention described in claim 3 is, for example, as shown in Figures 1 to 3, in the installation structure of the landing unit described in claim 2, The wall 3 is configured to include a building wood panel P, and the building wood panel P is covered with the fire-resistant coating surface material 4, The bracket 15 is characterized in that it is fixed to the architectural wood panel P from the surface of the fire-resistant coating surface material 4 by the fixing material 18.

[0011] According to the invention described in claim 3, bracket 15 is fixed to architectural wood panel P from the surface of fire-resistant covering surface material 4 by fasteners 18, so that fasteners 18 can be firmly fastened to architectural wood panel P via fire-resistant covering surface material 4. As a result, even when wall 3 of elevator shaft 2 is covered with fire-resistant covering surface material 4, bracket 15 can be firmly fixed to its own fixing point.

[0012] The invention described in claim 4 is, for example, as shown in Figures 1 to 3, in the installation structure of the landing unit described in claim 3, The wall 3 is configured to include an adjustment material 5 fixed to the edge of the architectural wood panel P on the opening 3a side, and the adjustment material 5 and the architectural wood panel P are covered with the fire-resistant covering surface material 4, The bracket 15 is characterized in that it is fixed to the architectural wood panel P or the adjusting material 5 from the surface of the fire-resistant coating surface material 4 by the fixing material 18.

[0013] According to the invention described in claim 4, bracket 15 is fixed to architectural wood panel P or adjusting material 5 from the surface of fire-resistant covering surface material 4 by fixing material 18, so fixing material 18 can be firmly fastened to architectural wood panel P or adjusting material 5 via fire-resistant covering surface material 4. As a result, even when wall 3 of elevator shaft 2 is covered with fire-resistant covering surface material 4, bracket 15 can be firmly fixed to its own fixing point.

[0014] The invention described in claim 5 is, for example, as shown in Figures 1 to 3, in the installation structure of the landing unit described in claim 2, The bracket 15 is formed in an angle shape, a first flange 16 joined to the opening frame body 11; and a second flange 17 fixed to the wall 3 from the surface of the fire-resistant coating face material 4 by the fixing material 18.

[0015] According to the invention described in claim 5, the first flange 16 joined to the opening frame main body 11 and the second flange 17 fixed to the wall 3 are arranged perpendicular to each other, so that the first flange 16 does not become an obstacle when fixing the second flange 17 to the wall 3 with the fixing material 18, and it is easy to fix the second flange 17 to the wall 3 with the fixing material 18. [Effects of the Invention]

[0016] According to the present invention, the entire wall of the elevator shaft, including the edges of the openings for boarding and alighting, can be covered with a fire-resistant coating surface material while a landing unit can be attached to the wall of the elevator shaft, thereby improving the fire resistance of the building in which the landing unit is installed. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a side cross-sectional view showing a particular floor of a building with an elevator shaft. [Figure 2] 1 is a cross-sectional plan view showing a particular floor of a building equipped with an elevator shaft. [Figure 3] FIG. 2 is a rear view showing a base opening frame provided in the wall of the elevator shaft. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments described below are subject to various limitations that are technically preferable for implementing 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 convenience of explanation.

[0019] In Figure 1, reference numeral 1 denotes a building. This building 1 is a multi-story residence, with the first floor made of reinforced concrete and the second and higher floors made of wood. A roof is provided on top of the building 1. The first floor of the building 1 is formed integrally with the foundation, and the building 1 has an elevator shaft 2 formed from the foundation to the roof.

[0020] The elevator shaft 2 is a space in which the car device in the elevator device rises and falls. do. Elevator shaft of the first floor slab made of reinforced concrete 2 The location where this is formed has no slab built, leaving an underground space. This underground space is called the pit, and the lower end of the cage device that descends to the first floor is located there. The pit also houses the equipment needed to raise and lower the cage device, and various pipes for Building 1 are installed there.

[0021] As described above, in building 1 of this embodiment, the first floor is made of reinforced concrete and the second and higher floors are made of wood, so elevator shaft 2 also has the first floor made of reinforced concrete and the second and higher floors made of wood. In other words, elevator shaft 2 is divided into a reinforced concrete section and a wooden section. Furthermore, since the wooden portion of the elevator shaft 2 has lower fire resistance than the reinforced concrete portion, fire-resistant coating surface material 4 is attached as shown in Figures 2 and 3 to improve fire resistance. In this embodiment, the first floor is made of reinforced concrete, but this is not limited to this and may be made of wood like the second floor and above, or other steel-framed structures or wood-based structures other than those described below. The entire building 1 may be made of reinforced concrete or other steel-framed structures, and regardless of which frame structure is used, fire-resistant coating surface materials 4 are attached to the surfaces of the walls 3.

[0022] The fire-resistant covering surface material 4 refers to a fire-resistant material formed as a board (surface material: plate material), and examples thereof include gypsum board (including reinforced gypsum board), calcium silicate board, rock wool board, metal plate, insulation board, etc. In this embodiment, a 21 mm thick reinforced gypsum board is used as the fire-resistant covering surface material 4, and two sheets of such fire-resistant covering surface material 4 are attached in layers to the wall 3 and ceiling of the elevator shaft 2.

[0023] To explain in more detail, the second floor and above of building 1 are wooden structures with wall structures constructed using a wood panel adhesive construction method, which is a type of so-called panel construction method, and have wood panels P as their main components. The wooden panel P is a structural material that supports the load and external forces of the building 1 (i.e., its own weight, live load, snow load, wind pressure, earth pressure, water pressure, and earthquakes and other vibrations and shocks). The wooden panel P is also called an architectural wooden panel P, and is made by assembling vertical and horizontal frame materials Fm into a rectangular shape, and then assembling auxiliary beam materials C vertically and horizontally inside the rectangular frame to form a frame body F. A surface material B such as plywood is attached to one or both sides of this frame body F, resulting in a hollow structure. Furthermore, the hollow interior is filled with insulating material such as glass wool or rock wool as appropriate. Of the walls in the elevator shaft 2, the walls 3 on the second floor and above are wall structures whose main component is such wooden panels P, and where necessary, two wooden panels P are stacked to form the walls 3. Two layers of fire-resistant covering surface material 4 are then attached to the surface of the walls 3 made of wooden panels P.

[0024] The second and higher floors of Building 1 are constructed of wood with wall structures constructed using a wood panel adhesive construction method, which is a type of panel construction method, and therefore the floors and roofs of the third and higher floors are also constructed of wood panels P. The floors of the first and second floors are constructed of reinforced concrete slabs.

[0025] An elevator device (not shown) is installed in the elevator shaft 2 configured as described above. The elevator device of this embodiment includes a cage device, a counterweight, a hoist, a lifting beam, a bracket, a guide rail, and a rail support bracket. The car device is used by passengers to ascend and descend within the elevator shaft 2, and the counterweight is suspended by the same suspension body as the car device and ascends and descends within the elevator shaft 2 while balancing the weight of the car device. The hoist is wound around the suspension body and raises and lowers the car device and counterweight by hoisting up the suspension body, and is installed on the top surface of several lifting beams located at the top of the elevator shaft 2. The lifting beams are installed by spanning brackets mounted on each of two parallel walls 3 of the elevator shaft 2. The guide rails are used to guide the ascending and descending movement of the car device and counterweight. The guide rails are arranged along the height direction within the elevator shaft 2, and can guide the car device and counterweight so that they can ascend and descend without swaying from the lowest floor to the highest floor. The car device and counterweight are equipped with rail sliding parts that slide along the guide rails. These guide rails are supported by rail support brackets provided on each of the two parallel walls 3 of the elevator shaft 2.

[0026] Of the walls 3 of the elevator shaft 2, the wall 3 located on the elevator hall side (inside the room) of each floor has a rectangular opening 3a for getting on and off. In the building 1 of this embodiment, the first floor is made of reinforced concrete, and therefore the upper, lower and both side edges of the opening 3a on the first floor are made of reinforced concrete. The second floor has a reinforced concrete floor slab on which walls 3 made of architectural wood panels P are constructed. Therefore, although not shown in the figure, the lower edge of the opening 3a on the second floor is made of reinforced concrete, and both side edges and the upper edge are made of architectural wood panels P. As shown in Figures 1 and 2, the top, bottom, and both side edges of the openings 3a on the third to fifth floors are made of architectural wood panels P. In order to adjust the height and width of the openings 3a and to secure the base opening frame 10 (described below), adjustment materials 5 made of square timber or boards are provided at the opening 3a side edges of the architectural wood panels P adjacent to the openings 3a. The fire-resistant covering surface material 4 covers the architectural wood panels P and the adjustment materials 5.

[0027] The floors of the third floor and above are composed of a floor body 6 made of architectural wood panels P and a floor structure constructed on the floor body 6. The floor body 6 is installed and fixed on the lower floor wall 3 (architectural wood panel P) via square timbers or the like, together with girder support 6a attached to the end, and the entire structure, including the underside, is covered with a fire-resistant coating surface material 4. It is assumed that a sound-insulating material is laid on the upper surface of the architectural wooden panel P, which is the floor body 6, and that the fire-resistant covering surface material 4 is provided on top of that. In addition, below the floor body 6, a ceiling material 6a for the lower floor is provided.

[0028] An architectural wood panel P that forms the lower edge of the opening 3a (hereinafter referred to as the threshold 7) and a floor underlayment 8 are provided on the floor body 6 that is covered with the fire-resistant covering surface material 4. The threshold 7 is covered with the fire-resistant covering surface material 4. The floor underlayment 8 has supports 8a made up of multiple beams or bolts, etc., and panel-shaped underlayment members 8b supported by the supports 8a. A floor finishing material 9 such as flooring material is laid on the upper surface from the subfloor portion 8 to the threshold 7. 1, 3 and 4, the dashed dotted line L1 indicates the height position of the upper surface of the floor body 6, and the dashed dotted line L2 indicates the height position of the upper surface of the floor finishing material.

[0029] Although not shown in the figure, the second floor is constructed of a reinforced concrete floor slab as described above. The threshold 7 of the opening 3a is also constructed of reinforced concrete. A floor finishing material supported by floor supports is laid on the top surface of this threshold 7, making it visually difficult to distinguish from the floors of the third floor and above. Furthermore, in the case of the first floor, as described above, the upper, lower and both side edges of the opening 3a are made of reinforced concrete, so the floor of the first floor is constructed in the same way as the floor of the second floor.

[0030] On the side of the elevator shaft 2 in the wall 3 of the elevator shaft 2 where the above-mentioned opening 3a for boarding and alighting is formed, a part of the landing unit is fixed from the surface of the fire-resistant coating surface material 4 to the wall 3 (architectural wood panel P) by fixing material 18. In this embodiment, since the wall 3 is made of the architectural wood panel P as described above, when fixing a part of the landing unit to the wall 3, the fixing material 18 is driven into the architectural wood panel P that makes up the wall 3. If the skeleton that makes up the wall 3 is of another type, such as a reinforced concrete structure, a fixing material suitable for that other type of skeleton is selected. Then, the fixing material is driven into the skeleton that makes up the wall 3 by an appropriate method, thereby fixing a part of the landing unit to the wall 3.

[0031] The landing unit is disposed on the elevator shaft 2 side of the entrance opening 3a, and in this embodiment includes a base opening frame 10 in which an opening / closing door device (not shown) is provided. In other words, the landing unit includes an opening / closing door device for opening and closing the entrance opening 3a, and the base opening frame 10 to which the opening / closing door device is fixed and which supports the opening / closing door device, and the base opening frame 10 is fixed to the side of the elevator shaft 2 in the wall 3 of the elevator shaft 2.

[0032] As shown in FIGS. 1 to 6, the base opening frame 10 includes an opening frame main body 11 and a plurality of brackets 15. The opening frame body 11 is a three-sided frame with no bottom edge in the case of reinforced concrete construction such as the first and second floors of the building 1 of this embodiment, and is a four-sided frame in the case of wooden construction such as the third to fifth floors. Below, a four-sided frame will be described, but in the case of a three-sided frame, the bottom edge (lower frame 14) is simply omitted.

[0033] The opening frame body 11 includes an upper frame 12, left and right horizontal frames 13, and a lower frame 14. In addition, the X-X' direction in Figures 1 to 6 indicates the left-right direction, the Y-Y' direction indicates the depth direction, and the Z-Z' direction indicates the height direction. In the X-X' direction, the X side points to the left and the X' side points to the right. In the Y-Y' direction, the Y side points to the elevator hall side (inside the room) and the Y' side points to the elevator shaft 2 side. In the Z-Z' direction, the Z side points to the upper side and the Z' side points to the lower side.

[0034] The upper frame 12 is made of an angle iron having an L-shaped side cross section, and has a first flange 12a and a second flange 12b. That is, it is formed in an angle shape. The first flange 12a is located on the Y' side and is disposed vertically (perpendicularly). The second flange 12b is located on the Y side and Z' side of the first flange 12a and is disposed horizontally. That is, second flange 12b protrudes horizontally from the lower end of first flange 12a toward the elevator hall. Conversely, first flange 12a protrudes vertically upward from the end of second flange 12b on the elevator shaft 2 side.

[0035] The horizontal frame 13 is made of an angle iron having an L-shaped flat cross section, and has a first flange 13a and a second flange 13b. That is, it is formed in an angle shape. The first flange 13a is located on the Y' side and is disposed vertically (perpendicularly). The second flange 13b is located closer to the Y side than the first flange 13a and is disposed vertically (perpendicularly). The horizontal frame 13 arranged on the X side and the horizontal frame 13 arranged on the X' side are arranged symmetrically. That is, the second flanges 13b of both frames are arranged on the inside and the first flanges 13a are arranged on the outside. The Y'-side end of the second flange 13b of the left-side (X-side) horizontal frame 13 is integrally formed with the X'-side end of the first flange 13a. The Y'-side end of the second flange 13b of the right-side (X'-side) horizontal frame 13 is integrally formed with the X-side end of the first flange 13a.

[0036] The lower frame 14 is made of a channel steel having a U-shape in side cross section, and has a first flange 14a, a second flange 14b, and a web 14c. The first flange 14a and the second flange 14b are positioned horizontally on the Y side of the web 14c. The first flange 14a is positioned higher than the second flange 14b. The web 14c is located on the Y' side relative to the first flange 14a and the second flange 14b, and is disposed vertically (perpendicularly). That is, first flange 14a protrudes horizontally from the upper end of web 14c toward the elevator hall, and second flange 14b protrudes horizontally from the lower end of web 14c toward the elevator hall.

[0037] The upper frame 12 is provided to span between the upper ends of the left and right horizontal frames 13. In addition, both longitudinal ends of the upper frame 12 are welded and fixed to second flanges 13b of the left and right horizontal frames 13. The lower frame 14 is provided to span between the lower ends of the left and right horizontal frames 13. In addition, both longitudinal ends of the lower frame 14 are welded and fixed to the second flanges 13b of the left and right horizontal frames 13.

[0038] The first flange 12a of the upper frame 12, the first flanges 13a of the left and right horizontal frames 13, and the web 14c of the lower frame 14 are arranged so as to be positioned on the same vertical plane.

[0039] Bracket 15 is fixed to wall 3 of elevator shaft 2 to hold opening frame body 11 in position at opening 3a, and is made of an angle iron with an L-shaped flat cross section, and has first flange 16 and second flange 17. In other words, it is formed in an angle shape.

[0040] The side surface of the first flange 16 of this bracket 15 is welded and fixed to the outer surface of the second flange 13b of the horizontal frame 13. Therefore, the first flange 16 extends in the Y-Y' direction in a plan view. Fixing methods other than welding may also be used. Furthermore, the bracket 15 arranged on the X side and the bracket 15 arranged on the X' side are arranged symmetrically. That is, the first flange 16 of each bracket 15 is located on the inside, and the second flange 17 (first flange 13a) is located on the outside. The X'-side end of the second flange 17 of the left-side (X-side) bracket 15 is integrally formed with the Y-side end of the first flange 16. The X-side end of the second flange 17 of the right-side (X'-side) bracket 15 is integrally formed with the Y-side end of the first flange 16.

[0041] Such brackets 15 are provided at a total of six locations, three on the X side and three on the X' side. That is, brackets 15 are provided at three locations, namely, the upper end, lower end, and center in the height direction of the horizontal frame 13 arranged on the X side, and at three locations, namely, the upper end, lower end, and center in the height direction of the horizontal frame 13 arranged on the X' side. The bracket 15 at the center in the height direction is provided as an auxiliary when the vertical dimension of the opening 3a is long (when the distance between the upper frame 12 and the lower frame 14, or the distance between the upper and lower brackets 15, is large), and is not used when the vertical dimension of the opening 3a is not long. However, this is not limited to this, and if it is required to firmly fix the base opening frame 10, the bracket 15 at the center in the height direction may be used even when the vertical dimension of the opening 3a is not long.

[0042] A plurality of through holes 17a through which the fixing members 18 are passed are formed penetrating the second flange 17 of the bracket 15. The plurality of through holes 17a are formed at intervals in the vertical direction. In this embodiment, a coach bolt is used as the fixing member 18. The fixing member 18, which is a coach bolt, is passed through the through hole 17a from the Y' side (elevator shaft 2 side) and fixed to the wall 3 of the elevator shaft 2. More specifically, the fixing member 18 is screwed into the wall or floor architectural wood panel P, the adjusting member 5, or the girth 6a that forms the wall 3 facing the elevator shaft 2, via the fire-resistant covering surface material 4. That is, the brackets 15 located at the upper ends of the left and right horizontal frames 13 in the height direction are fixed to left and right portions of the architectural wood panel P (wall architectural wood panel P) that form the upper edge of the opening 3a. The brackets 15 located at the center in the height direction are fixed to the architectural wood panel P that form the side edge of the opening 3a. The brackets 15 located at the lower ends in the height direction are fixed to left and right portions of the architectural wood panel P (floor architectural wood panel P) that form the lower edge of the opening 3a. In addition, in the case of the first and second floors, since the threshold 7 is constructed of a reinforced concrete floor slab, the bracket 15 located at the lower end of the horizontal frame 13 in the vertical direction is fixed to the floor slab by fixing material 18.

[0043] Since opening frame body 11 has horizontal frames 13 welded to brackets 15, when brackets 15 are fixed to wall 3 of elevator shaft 2, opening frame body 11 is also held to wall 3 of elevator shaft 2. In other words, base opening frame 10 can be fixed to wall 3 of elevator shaft 2.

[0044] As shown in Figures 2 and 3, the multiple through holes 17a formed in the second flange 17 of the bracket 15 are positioned so as to overlap with the side edge portion of the horizontal frame 13 in the Y-Y' direction, making it difficult to pass the fixing material 18 through them. Therefore, in this embodiment, the plurality of brackets 15 are first fixed to the wall 3 of the elevator shaft 2 using fixing materials 18, and then the opening frame main body 11 is fixed to these plurality of brackets 15, thereby attaching the base opening frame 10 to the wall 3 of the elevator shaft 2. However, this is not limited to this, and a procedure may be adopted in which the opening frame main body 11 and multiple brackets 15 are integrated in advance, and the multiple brackets 15 are fixed to the wall 3 of the elevator shaft 2 using fixing materials 18, thereby attaching the base opening frame 10 to the wall 3 of the elevator shaft 2.

[0045] An opening / closing door device that opens and closes the opening 3a is provided in the opening frame body 11 of the base opening frame 10. In other words, a landing unit equipped with the base opening frame 10 and the opening / closing door device is installed in the elevator shaft 2. The door device includes at least a sliding door, upper and lower rails along which the door runs, and a drive unit that drives the door. Such base opening frames 10 are provided corresponding to the entrance and exit openings 3a on each floor of the building 1. Therefore, when the car device in the elevator device moves up and down in the elevator shaft 2 and stops at any floor, the opening and closing doors of the door device in the landing unit open, opening the opening 3a and connecting the inside of the car device to the elevator hall (room). Passengers getting on and off the car device get on and off through the entrance and exit openings 3a. The height of the upper surface of the floor finishing material 9 in the elevator hall and the floor surface of the car device are controlled to be flush. Therefore, the first flange 14a of the lower frame 14 of the opening frame main body 11 may be provided with a spacer to eliminate the gap between the floor finishing material 9 and the floor of the car device.

[0046] In this embodiment, the bracket 15 of the landing unit is fixed to the wall 3 from the surface of the fire-resistant coated surface material 4 by the fixing material 18, but this is not limited to this. In addition, a part of the opening and closing door device (not shown, such as a rail or drive unit) may also be fixed as necessary. In this case, too, it is fixed to the wall 3 from the surface of the fire-resistant coated surface material 4 by the fixing material 18.

[0047] In the above description, the joining of each frame (upper frame 12, horizontal frame 13, lower frame 15) and bracket 15 is performed by welding, but this is not limited to this, and joining methods such as bolt joining using bolts and nuts or other joining members may also be used.

[0048] According to this embodiment, the following excellent effects are achieved. That is, bracket 15 for holding opening frame main body 11 on the side surface of wall 3a of elevator shaft 2 contacts the side surface of wall 3 of elevator shaft 2 and is fixed to wall 3 from the surface of fire-resistant coating surface material 4 by fasteners 18, so bracket 15 can be fixed to wall 3 via fire-resistant coating surface material 4 while covering the entire wall 3 of elevator shaft 2 with fire-resistant coating surface material 4. In this way, opening frame main body 11 held by bracket 15, and therefore an opening / closing door device, can be installed in elevator shaft 2 with wall 3 of elevator shaft 2 covered with fire-resistant coating surface material 4, and as a result, the fire resistance of building 1 can be improved.

[0049] Furthermore, bracket 15 is fixed to architectural wood panel P from the surface of fire-resistant covering surface material 4 by fasteners 18, so that fasteners 18 can be firmly fastened to architectural wood panel P via fire-resistant covering surface material 4. As a result, even when wall 3 of elevator shaft 2 is covered with fire-resistant covering surface material 4, bracket 15 can be firmly fixed to its own fixing point.

[0050] Furthermore, bracket 15 is fixed to architectural wood panel P or adjusting material 5 from the surface of fire-resistant covering surface material 4 by fixing material 18, so fixing material 18 can be firmly fastened to architectural wood panel P or adjusting material 5 via fire-resistant covering surface material 4. As a result, even when wall 3 of elevator shaft 2 is covered with fire-resistant covering surface material 4, bracket 15 can be firmly fixed to its own fixing point.

[0051] Furthermore, the bracket 15 is formed in an angled shape, and the first flange 16 joined to the opening frame body 11 and the second flange 17 fixed to the wall 3 are arranged perpendicular to each other. Therefore, when the second flange 17 is fixed to the wall 3 with the fixing material 18, the first flange 16 does not become an obstacle, and the second flange 17 can be easily fixed to the wall 3 with the fixing material 18.

[0052] Furthermore, in recent years, there has been a demand for the realization of a carbon-neutral society by promoting carbon neutrality, which reduces carbon dioxide emissions to virtually zero, and for the achievement of the SDGs (Sustainable Development Goals), and in the construction industry, efforts are being made to build buildings using wood, which has low carbon dioxide emissions. Since the second floor and above of the building 1 of this embodiment are wooden structures, it can contribute to the realization of a carbon-neutral society by promoting carbon neutrality and the achievement of the SDGs. [Explanation of symbols]

[0053] 1. Building 2 Elevator Shaft 3. Wall 3a opening 4 Fireproof coating surface material 5 Adjustment material 6 Floor body 6a Torso difference 6b Ceiling material 7. Threshold 8 Subfloor 8a Support 8b Base material 9. Floor finishing materials 10 Base opening frame 11 Opening frame body 12 Upper frame 12a First flange 12b Second flange 13 Horizontal frame 13a First flange 13b Second flange 14 Lower frame 14a First flange 14b Second flange 14c Web 15 Bracket 16 First flange 17 Second flange 17a through hole 18 Fixing material

Claims

1. The walls of the elevator shaft are covered with fire-resistant coating materials. A plurality of openings for boarding and alighting are formed in the wall, a landing unit is disposed in the elevator shaft corresponding to a location where the opening is formed; A landing unit installation structure characterized in that a portion of the landing unit is fixed only from the surface of the fire-resistant coating surface material to the side of the elevator shaft of the wall by a fixing material.

2. The landing unit installation structure according to claim 1, The landing unit includes: an opening / closing door device for opening and closing the opening; a base opening frame in which the opening and closing door device is provided, The base opening frame is an opening frame body formed in a frame shape along an edge of the opening; a bracket joined to the opening frame body for holding the opening frame body on the elevator shaft side of the wall, A landing unit installation structure characterized in that a plurality of the brackets contact the side surface of the elevator shaft of the wall and are fixed to the wall from the surface of the fire-resistant coating surface material by the fixing material.

3. The landing unit installation structure according to claim 2, The wall is configured to include a wooden architectural panel, and the wooden architectural panel is covered with the fire-resistant coating surface material, The bracket is fixed to the architectural wood panel from the surface of the fire-resistant coating surface material by the fixing material.

4. The landing unit installation structure according to claim 3, The wall is configured to include an adjustment material fixed to the edge of the architectural wood panel on the opening side, and the adjustment material and the architectural wood panel are covered with the fire-resistant covering surface material, The bracket is fixed to the architectural wood panel or the adjustment material from the surface of the fire-resistant coating surface material by the fixing material.

5. The landing unit installation structure according to claim 2, The bracket is formed in an angled shape, a first flange joined to the opening frame body; A landing unit installation structure characterized by having a second flange fixed to the wall from the surface of the fire-resistant coating surface material by the fixing material.

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