Platform unit installation structure

Abstract

The entire wall of the elevator shaft, including the edges of the entrance / exit openings, is covered with a fire-resistant cladding material, while allowing the landing units to be attached to the elevator shaft wall. [Solution] The wall 3 of the elevator shaft 2 is covered with a fire-resistant covering material 4, and multiple openings 3a for boarding and alighting are formed in the wall 3. Landing units are positioned in the elevator shaft 2 corresponding to the locations where the openings 3a are formed, and a part of the landing unit is fixed to the wall 3 from the surface of the fire-resistant covering material 4 by a fixing member 18.

Description

Technical Field

[0001] The present invention relates to an installation structure of a landing unit provided with an opening and closing door device in an elevator shaft.

Background Art

[0002] Conventionally, a technique is known in which a frame-shaped landing unit provided with an opening and closing door that can be opened and closed freely 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, with respect to a crosspiece constituting the edge of an opening for boarding and alighting among the walls of an elevator shaft, a three-sided frame is fixed via a plywood board, and on the elevator shaft side of the three-sided frame, a frame structure for supporting an opening and closing door of a landing unit so as to be freely opened and closed is integrally attached. And on both the front and back surfaces of the wall of the elevator shaft, a front panel such as a gypsum board is pasted and fireproof coated.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the wall of the elevator shaft of Patent Document 1, the plywood board interposed between the edge of the opening for boarding and alighting and the three-sided frame is provided to prevent a gap from occurring between the wall of the elevator shaft and the frame structure of the landing unit. Therefore, it is difficult to omit the plywood board from the edge of the opening for boarding and alighting, and the gypsum board is not pasted on the edge of the opening for boarding and alighting. That is, it has been difficult to cover the entire wall of the elevator shaft with a fireproof covering surface material.

[0005] The present invention has been made in view of the above circumstances, and its purpose is to enable the attachment of a landing unit to the wall of an elevator shaft while covering the entire wall of the elevator shaft, including the edges of the openings for boarding and alighting, with a fire-resistant covering material. [Means for solving the problem]

[0006] The invention described in claim 1 is such that, for example, as shown in Figures 1 to 6, the wall 3 of the elevator shaft 2 is covered with a fire-resistant covering material 4. Multiple openings 3a for boarding and alighting are formed in the aforementioned wall 3. A landing unit is positioned in the elevator shaft 2 corresponding to the location where the opening 3a is formed. A part of the landing unit (for example, a bracket 15) is fixed to the wall 3 from the surface of the fire-resistant covering material 4 by a fixing member 18.

[0007] According to the invention described in claim 1, a portion of the landing unit is fixed to the wall 3 from the surface of the fire-resistant covering material 4 by a fixing member 18. This allows the wall 3 of the elevator shaft 2 to be covered with the fire-resistant covering material 4 while a portion of the landing unit is fixed to the wall 3 via the fire-resistant covering material 4. As a result, the landing unit can be installed inside the elevator shaft 2 with the entire wall 3 of the elevator shaft 2 covered with the fire-resistant covering material 4, thereby improving the fire resistance of the building 1.

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

[0009] According to the invention described in claim 2, the bracket 15 for holding the opening frame body 11 to the side surface of the elevator shaft 2 of the wall 3a is in contact with the side surface of the elevator shaft 2 of the wall 3 and is fixed to the wall 3 from the surface of the fire-resistant covering material 4 by the fixing material 18. As a result, the bracket 15 can be fixed to the wall 3 via the fire-resistant covering material 4 while the entire wall 3 of the elevator shaft 2 is covered with the fire-resistant covering material 4. This allows the opening frame body 11, and consequently the opening and closing door device, held by the bracket 15, to be installed on the elevator shaft 2 while the wall 3 of the elevator shaft 2 is covered with the fire-resistant covering material 4, thereby improving the fire resistance of the building 1.

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

[0011] According to the invention described in claim 3, the bracket 15 is fixed to the building wood panel P from the surface of the fire-resistant covering material 4 by the fixing material 18, so that the fixing material 18 can be firmly fastened to the building wood panel P via the fire-resistant covering material 4. As a result, even when the wall 3 of the elevator shaft 2 is covered with the fire-resistant covering material 4, the 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 composed of an adjustment member 5 fixed to the edge of the building wood panel P on the side of the opening 3a, and the adjustment member 5 and the building wood panel P are covered by the fire-resistant covering surface material 4. The bracket 15 is characterized in that it is fixed to the building wood panel P or the adjustment material 5 from the surface of the fire-resistant covering material 4 by the fixing material 18.

[0013] According to the invention described in claim 4, the bracket 15 is fixed to the building wood panel P or adjustment material 5 from the surface of the fire-resistant covering surface 4 by the fixing material 18, so that the fixing material 18 can be firmly fastened to the building wood panel P or adjustment material 5 via the fire-resistant covering surface 4. As a result, even when the wall 3 of the elevator shaft 2 is covered with the fire-resistant covering surface 4, the 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, an installation structure for the landing unit described in claim 2, The bracket 15 is formed in an angle shape, The first flange 16 is joined to the opening frame body 11, The present invention is characterized by having a second flange 17 which is fixed to the wall 3 from the surface of the fire-resistant covering 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 body 11 and the second flange 17 fixed to the wall 3 are arranged perpendicularly to each other. Therefore, the first flange 16 does not get in the way when fixing the second flange 17 to the wall 3 with the fixing material 18, making it easier 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, while covering the entire wall of the elevator shaft including the edge of the opening for boarding and alighting with a fire-resistant covering material, a landing unit can be attached to the wall of the elevator shaft, and as a result, the fire resistance of the building in which the landing unit is installed can be improved.

Brief Description of the Drawings

[0017] [Figure 1] It is a side sectional view showing a predetermined floor of a building equipped with an elevator shaft. [Figure 2] It is a plan sectional view showing a predetermined floor of a building equipped with an elevator shaft. [Figure 3] It is a rear view showing a base opening frame provided on the wall of the elevator shaft. [Figure 4] It is a front view showing the opening frame body. [Figure 5] It is a plan view showing the opening frame body. [Figure 6] It is a bottom view showing the opening frame body.

Embodiments for Carrying Out the Invention

[0018] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, although various technically preferable limitations are imposed on the embodiments described below for carrying out the present invention, 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 only for the convenience of explanation.

[0019] In FIG. 1, reference numeral 1 denotes a building. This building 1 is a multi-story house, the first floor is made of reinforced concrete, and the second floor and above are made of wood. A roof is provided on the upper part of the building 1. The first floor of the building 1 is integrally formed with the foundation, and an elevator shaft 2 is formed in the building 1 from the foundation to the roof.

[0020] The elevator shaft 2 is the space through which the elevator car moves up and down in the elevator system. In the reinforced concrete slab of the first floor, the area where elevator shaft 3 is to be formed is left without a slab, creating an underground space. This underground space is called a pit, and the lower end of the elevator car, which descends to the first floor, is located there. This pit also houses equipment necessary for the elevator car's movement and contains various pipes for building 1.

[0021] As described above, in this embodiment, the building 1 has a reinforced concrete structure on the first floor and a wooden structure from the second floor upwards. Therefore, the elevator shaft 2 also has a reinforced concrete structure on the first floor and a wooden structure from the second floor upwards. In other words, the elevator shaft 2 is composed of 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, the fire resistance is improved by attaching fire-resistant covering material 4, as shown in Figures 2 and 3. In this embodiment, the first floor is made of reinforced concrete, but it is not limited to this. It may be made of wood, similar to the second floor and above, or other steel-frame structures or wood-based structures other than those described below may be used. Furthermore, the entire building 1 may be made of reinforced concrete or other steel-frame structures, and in any case, fire-resistant covering material 4 is attached to the surface of the walls 3.

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

[0023] To explain in more detail, the structure of the second floor and above in building 1 is a wooden structure with wall-type construction using a wood panel bonding method, which is a type of so-called panel construction method, and its main component is wood panels P. The wooden panel P is a structural material that supports the loads and external forces of the building 1 (i.e., its own weight, live load, snow load, wind pressure, earth pressure and water pressure, as well as earthquakes and other vibrations and shocks). The wooden panel P, also called the wooden panel for construction, is made by assembling vertical and horizontal frame members Fm in a rectangular shape, and then assembling auxiliary cross members C vertically and horizontally inside the rectangular frame to form a frame body F. Face material B such as plywood is attached to one or both sides of this frame body F, and it has a hollow internal structure. Furthermore, insulation material such as glass wool or rock wool is appropriately installed in the hollow internal portion. In the elevator shaft 2, the walls 3 on the second floor and above are constructed as wall-type structures with wooden panels P as the main component, and two layers of wooden panels P are used to form the wall 3 where necessary. Two layers of fire-resistant covering material 4 are then attached to the surface of the wall 3 made of wooden panels P.

[0024] The structure of Building 1 from the second floor upwards is a wooden structure with wall-type construction using a wood panel bonding method, which is a type of so-called panel construction method. Therefore, the floors and roofs of the third floor and above are also made of wood panels P. The floors of the first and second floors are made 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 car, a counterweight, a hoisting machine, a lifting beam, a bracket, a guide rail, and a rail support bracket. The elevator car is used to transport people up and down within the elevator shaft 2. The counterweight is suspended by the same suspension system as the elevator car and moves up and down within the elevator shaft 2 while balancing with the weight of the elevator car. The hoisting machine has the suspension system wrapped around it and raises and lowers the elevator car and counterweight by hoisting the suspension system. It is installed on the upper surface of several lifting beams located at the top of the elevator shaft 2. The lifting beams are supported by brackets provided on each of two parallel walls of the elevator shaft 2's walls 3. Guide rails are rails that guide the upward and downward movement of the elevator car and counterweight. Guide rails are arranged along the height direction within the elevator shaft 2 and can guide the elevator car and counterweight so that they can move up and down from the lowest floor to the highest floor without lateral swaying. The elevator car and counterweight are equipped with rail sliding parts that slide along the guide rails. Such guide rails are supported by rail support brackets provided on each of the two parallel walls of the elevator shaft 2 wall 3.

[0026] Of the walls 3 of the elevator shaft 2, the wall 3 located on the elevator hall side (indoor side) of each floor has a rectangular opening 3a for boarding and alighting. In this embodiment, since the first floor of building 1 is made of reinforced concrete, the top and bottom edges and both side edges of the opening 3a on the first floor are made of reinforced concrete. On the second floor, walls 3 made of architectural wood panels P are constructed on top of a reinforced concrete floor slab. Therefore, although not shown in the diagram, the openings 3a on the second floor have a reinforced concrete lower edge and are constructed of architectural wood panels P on both sides and the upper edge. As shown in Figures 1 and 2, the openings 3a on the 3rd to 5th floors are constructed with building wood panels P at the top, bottom, and both side edges. In addition, to adjust the height and width of the openings 3a, and to fix the base opening frame 10 (described later), adjustment members 5 made of square timbers or boards are appropriately provided at the opening 3a side end of the building wood panels P adjacent to the openings 3a. The fire-resistant covering material 4 covers both the building wood panels P and the adjustment members 5.

[0027] The floors of each floor from the third floor upwards are composed of a floor body 6 made of building wood panels P, and a floor structure built on top of the floor body 6. The floor structure 6 is installed and fixed on the wall 3 (architectural wood panel P) of the floor below, together with the girders 6a provided at the ends, via timbers or the like, and the entire structure, including the underside, is covered with fire-resistant covering material 4. Furthermore, it is assumed that sound insulation material is laid on the upper surface of the building wood panel P, which is the floor structure 6, and that a fire-resistant covering material 4 is provided on top of it. Furthermore, the ceiling material 6a of the lower floor is provided below the floor structure 6.

[0028] On the floor body 6 covered with fire-resistant covering material 4, there is a building wooden panel P that constitutes the lower edge of the opening 3a (hereinafter referred to as the threshold 7), and a floor base 8. The threshold 7 is covered with fire-resistant covering material 4. The floor base 8 has a support 8a made up of multiple bundles or bolts, and a panel-shaped base member 8b supported by the support 8a. Furthermore, floor finishing material 9, such as flooring material, is laid on the upper surface from the subfloor 8 to the threshold 7. In Figures 1, 3, and 4, the dashed line L1 indicates the height position of the upper surface of the floor body 6, and the dashed line L2 indicates the height position of the upper surface of the floor finishing material.

[0029] Although not shown in the diagram, the second-floor slab is constructed of reinforced concrete, as described above. The threshold 7 of the opening 3a is also constructed of reinforced concrete. Floor finishing material supported by floor supports is laid on the upper 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 and lower edges 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] A portion of the landing unit is fixed to the side of the elevator shaft 2 wall 3, where the above-described opening 3a for boarding and alighting is formed, from the surface of the fire-resistant covering material 4 to the wall 3 (architectural wood panel P) by a fixing member 18. In this embodiment, since the wall 3 is constructed of building wood panels P as described above, when fixing a part of the landing unit to the wall 3, the fixing material 18 is driven into the building wood panels P that make up the wall 3. If the structure that makes up the wall 3 is of a different type, such as reinforced concrete, a fixing material suitable for that other type of structure will be selected. Then, the fixing material will be driven into the structure that makes up the wall 3 by an appropriate method, and a part of the landing unit can be fixed to the wall 3.

[0031] The landing unit is positioned on the elevator shaft 2 side of the entrance / exit opening 3a, and in this embodiment, it includes a base opening frame 10 on 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 / exit opening 3a, and a 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 surface of the elevator shaft 2 in the wall 3 of the elevator shaft 2.

[0032] As shown in Figures 1 to 6, the base opening frame 10 comprises an opening frame body 11 and a plurality of brackets 15. The opening frame body 11 is a three-sided frame without a bottom edge in the case of reinforced concrete construction, such as the first and second floors of building 1 in this embodiment, and a four-sided frame in the case of wooden construction, such as the third to fifth floors. The four-sided frame will be described below, but in the case of a three-sided frame, it is simply a form in which the bottom edge (bottom frame 14) is omitted.

[0033] The opening frame body 11 comprises an upper frame 12, left and right horizontal frames 13, and a lower frame 14. In Figures 1 to 6, the X-X' direction 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, X points to the left and X' points to the right. In the Y-Y' direction, Y points to the elevator hall side (indoor side) and Y' points to the elevator shaft 2 side. In the Z-Z' direction, Z points to the top and Z' points to the bottom.

[0034] The upper frame 12 is constructed from angle steel with an L-shaped side cross-section and has a first flange 12a and a second flange 12b. In other words, it is formed in an angle shape. The first flange 12a is located on the Y' side and is positioned vertically. The second flange 12b is located on the Y side and Z' side of the first flange 12a and is positioned horizontally. In other words, the second flange 12b protrudes horizontally from the lower end of the first flange 12a toward the elevator hall. Conversely, the first flange 12a protrudes vertically upward from the end of the second flange 12b toward the elevator shaft 2.

[0035] The horizontal frame 13 is constructed from L-shaped angle steel with a flat cross-section and has a first flange 13a and a second flange 13b. In other words, it is formed in an angle shape. The first flange 13a is located on the Y' side and is positioned vertically. The second flange 13b is located on the Y side of the first flange 13a and is positioned vertically. Furthermore, the horizontal frame 13 positioned on the X side and the horizontal frame 13 positioned on the X' side are arranged symmetrically. That is, the second flanges 13b on both sides are positioned inward, and the first flanges 13a are positioned outward. The Y' side end of the second flange 13b on the left (X side) horizontal frame 13 is integrally formed with the X' side end of the first flange 13a. Similarly, the Y' side end of the second flange 13b on the right (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 channel steel with a U-shape in side view 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 and on the Y side relative to the web 14c. Furthermore, the first flange 14a is positioned above the second flange 14b. The web 14c is located on the Y' side with respect to the first flange 14a and the second flange 14b, and is positioned perpendicular (vertically). In other words, the first flange 14a protrudes horizontally from the upper end of the web 14c toward the elevator hall. The second flange 14b also protrudes horizontally from the lower end of the web 14c toward the elevator hall.

[0037] The upper frame 12 is installed by spanning between the upper ends of the left and right horizontal frames 13. Furthermore, both ends of the upper frame 12 in the longitudinal direction are welded and fixed to the second flanges 13b of the left and right horizontal frames 13. The lower frame 14 is installed by spanning between the lower ends of the left and right horizontal frames 13. Furthermore, both ends of the lower frame 14 in the longitudinal direction are welded and fixed to the second flanges 13b of the left and right horizontal frames 13.

[0038] Furthermore, 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 positioned on the same vertical plane.

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

[0040] The first flange 16 of this bracket 15 is fixed by welding its side portion to the outer surface of the second flange 13b on the lateral frame 13. Therefore, the first flange 16 extends in the Y-Y' direction in a plan view. Other fixing methods may be employed. Furthermore, the bracket 15 positioned on the X side and the bracket 15 positioned on the X' side are arranged symmetrically. That is, the first flange 16 of both brackets 15 is positioned on the inside, and the first flange 13a of the second flange 17 is positioned on the outside. The X' side end of the second flange 17 of the left (X side) bracket 15 is integrally formed with the Y side end of the first flange 16. Similarly, the X side end of the second flange 17 of the right (X' side) bracket 15 is integrally formed with the Y side end of the first flange 16.

[0041] These brackets 15 are provided in a total of six locations: three on the X side and three on the X' side. Specifically, brackets 15 are provided at three locations on the horizontal frame 13 located on the X side (upper end, lower end, and center in the height direction) and at three locations on the horizontal frame 13 located on the X' side (upper end, lower end, and center in the height direction). The bracket 15 in 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 the only option, and if it is required to firmly fix the base opening frame 10, the bracket 15 in the center in the height direction may be used even when the vertical dimension of the opening 3a is not long.

[0042] The second flange 17 of the bracket 15 has multiple through holes 17a formed through it, through which the fixing material 18 is passed. The multiple through holes 17a are formed with gaps between them vertically. In this embodiment, the fixing member 18 is a coach bolt. 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 building wood panel P for walls or floors, adjustment member 5, or girder 6a that face the elevator shaft 2 as the wall 3, via the fire-resistant covering surface material 4. That is, the brackets 15 located at the upper ends in the height direction of the left and right horizontal frames 13 are fixed to the parts located on the left and right of the building wood panel P that constitute the upper edge of the opening 3a (building wood panel P for walls). The brackets 15 located in the center in the height direction are fixed to the building wood panel P that constitute the side edge of the opening 3a. The brackets 15 located at the lower end in the height direction are fixed to the parts located on the left and right of the building wood panel P that constitute the lower edge of the opening 3a (building wood panel P for floors). In the case of the first and second floors, since the threshold 7 is made of a reinforced concrete floor slab, the bracket 15 located at the lower end of the horizontal frame 13 in the height direction will be fixed to the floor slab by the fixing material 18.

[0043] Since the horizontal frame 13 of the opening frame body 11 is welded and fixed to the bracket 15, when the bracket 15 is fixed to the wall 3 of the elevator shaft 2, the opening frame body 11 is also held to the wall 3 of the elevator shaft 2. In other words, the base opening frame 10 can be fixed to the wall 3 of the 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 in a positional relationship that overlaps with the side edge of the horizontal frame 13 in the Y-Y' direction, making it difficult to pass the fixing material 18 through. Therefore, in this embodiment, the base opening frame 10 is attached to the wall 3 of the elevator shaft 2 by first fixing the multiple brackets 15 to the wall 3 of the elevator shaft 2 with fixing material 18, and then fixing the opening frame body 11 to these multiple brackets 15. However, this is not the only option. Alternatively, the opening frame body 11 and the multiple brackets 15 may be pre-integrated, and the multiple brackets 15 may be fixed to the wall 3 of the elevator shaft 2 using fixing material 18, thereby attaching the base opening frame 10 to the wall 3 of the elevator shaft 2.

[0045] Of the base opening frame 10 described above, the opening frame body 11 is equipped with an opening / closing door device for opening and closing the opening 3a. In other words, a landing unit consisting of the base opening frame 10 and the opening / closing door device is installed in the elevator shaft 2. The door opening and closing device comprises at least a sliding door, upper and lower rails on which the door travels, and a drive unit for driving the door. These base opening frames 10 are provided in accordance with the entrance / exit openings 3a on each floor of the building 1. Therefore, when the elevator car moves up and down within the elevator shaft 2 and stops at any floor, the opening doors of the opening / closing door device in the landing unit open, opening the opening 3a and creating communication between the inside of the elevator car and the elevator hall (room). People getting on and off the elevator car do so through the entrance / exit openings 3a. The upper surface of the floor finishing material 9 in the elevator hall and the floor surface of the elevator car are controlled to be flush. Therefore, a spacer may be provided on the first flange 14a of the lower frame 14 of the opening frame body 11 to eliminate the gap between the floor finishing material 9 and the floor of the elevator car.

[0046] In this embodiment, the bracket 15 of the landing unit is fixed to the wall 3 from the surface of the fire-resistant covering material 4 by the fixing material 18, but it is not limited to this. In addition, if necessary, parts of the opening and closing door device (rails, drive unit, etc.) not shown may also be fixed. In that case as well, they shall be fixed to the wall 3 from the surface of the fire-resistant covering 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 assumed to be done by welding, but this is not the only method, and bolted joining using bolts and nuts or other joining methods using connecting members may also be employed.

[0048] This embodiment provides the following excellent effects. In other words, the bracket 15 for holding the opening frame body 11 to the side of the elevator shaft 2 of the wall 3a is in contact with the side of the elevator shaft 2 of the wall 3 and is fixed to the wall 3 from the surface of the fire-resistant covering material 4 by the fixing material 18. As a result, the entire wall 3 of the elevator shaft 2 can be covered with the fire-resistant covering material 4, while the bracket 15 can be fixed to the wall 3 via the fire-resistant covering material 4. This allows the opening frame body 11, and consequently the opening and closing door device, to be installed on the elevator shaft 2 while the wall 3 of the elevator shaft 2 is covered with the fire-resistant covering material 4, thereby improving the fire resistance of the building 1.

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

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

[0051] Furthermore, since the bracket 15 is formed in an angle shape, the first flange 16 that is joined to the opening frame body 11 and the second flange 17 that is fixed to the wall 3 are arranged perpendicularly to each other. Therefore, when fixing the second flange 17 to the wall 3 with the fixing material 18, the first flange 16 does not get in the way, making it easy to fix the second flange 17 to the wall 3 with the fixing material 18.

[0052] Furthermore, in recent years, there has been a growing demand for the realization of a decarbonized society through the promotion of carbon neutrality, which aims to reduce carbon dioxide emissions to virtually zero, and for the achievement of the Sustainable Development Goals (SDGs). In the construction industry, efforts are also being made to use wood, which reduces carbon dioxide emissions, for buildings. In this embodiment, Building 1 is constructed of wood from the second floor upwards, and therefore can contribute to the realization of a decarbonized society through the promotion of carbon neutrality and to the achievement of the SDGs. [Explanation of symbols]

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

Claims

1. The elevator shaft walls are covered with fire-resistant cladding material. Multiple openings for boarding and alighting are formed in the aforementioned wall. A landing unit is positioned in the elevator shaft corresponding to the location where the opening is formed. An installation structure for a landing unit, characterized in that a portion of the landing unit is fixed to the wall from the surface of the fire-resistant covering material by a fixing material.

2. In the installation structure of the boarding unit according to claim 1, The aforementioned boarding unit is, An opening and closing door device for opening and closing the aforementioned opening, It comprises a base opening frame on which the aforementioned opening and closing door device is provided, The aforementioned base opening frame is, An opening frame body formed in a frame shape along the edge of the opening, It has a bracket that is joined to the opening frame body and holds the opening frame body to the side of the elevator shaft of the wall, An installation structure for a landing unit, characterized in that the plurality of brackets are in contact with the side surface of the elevator shaft of the wall and are fixed to the wall from the surface of the fire-resistant covering material by the fixing material.

3. In the installation structure of the boarding unit according to claim 2, The wall is constructed including building wood panels, and the building wood panels are covered with the fire-resistant covering material. The installation structure for a landing unit is characterized in that the bracket is fixed to the building wood panel from the surface of the fire-resistant covering material by the fixing material.

4. In the installation structure of the boarding unit according to claim 3, The wall is constructed including an adjustment member fixed to the edge of the building wood panel on the opening side, and the adjustment member and the building wood panel are covered with the fire-resistant covering material. The installation structure for a landing unit is characterized in that the bracket is fixed by the fixing material from the surface of the fire-resistant covering material to the building wood panel or the adjustment material.

5. In the installation structure of the boarding unit according to claim 2, The aforementioned bracket is formed in an angle shape, The first flange is joined to the opening frame body, An installation structure for a landing unit, characterized by having a second flange which is fixed to the wall from the surface of the fire-resistant covering material by the aforementioned fixing material.

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