Elevator installation structure and construction method

Abstract

To install an elevator device in an elevator shaft while covering the wall of the elevator shaft with a fire-resistant covering surface material. [Solution] The solution is an elevator equipment installation structure in which a fire-resistant coated surface material 4 is attached to the wall 3b of the elevator shaft 3, and parts 11, 21 of the elevator equipment placed inside the elevator shaft 3 are fixed to the wall 3b from the surface of the fire-resistant coated surface material 4 by fixing materials 12, 22.

Description

[Technical Field]

[0001] The present invention relates to an elevator installation structure and construction method. [Background technology]

[0002] BACKGROUND ART Conventionally, techniques for installing elevator devices in elevator shafts are known. In Patent Document 1, various metal reinforcing frames are fixed to the wooden beams that make up the elevator shaft, and rail brackets are fixed to these various reinforcing frames to support the guide rails necessary for the raising and lowering of the car device. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 3394846 Summary of the Invention [Problem to be solved by the invention]

[0004] To improve the fire resistance of buildings that house elevators, elevator shaft walls are required to be covered with fire-resistant covering materials such as gypsum boards. However, because the wooden beams that make up elevator shafts are equipped with various reinforcing frames and rail brackets attached via these frames, it has been difficult to cover them with fire-resistant covering materials.

[0005] The present invention has been made in consideration of the above circumstances, and its object is to enable the installation of elevator equipment in an elevator shaft while covering the walls of the elevator shaft 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 12, an installation structure for an elevator device, Elevator Shaft 3 Wooden construction in A fire-resistant coating surface material 4 is attached to the wall 3b of the Parts (11, 21) of the elevator device arranged inside the elevator shaft (3) are fixed to the wall (3b) from the surface of the fire-resistant coating surface material (4) by fixing members (12, 22).

[0007] According to the invention of claim 1, the parts 11 and 21 of the elevator device are fixed from the surface of the fire-resistant covering surface material 4 by the fixing members 12 and 22. wooden It is fixed against wall 3b, so elevator shaft 3 Wooden construction in The wall 3b is covered with a fire-resistant covering surface material 4, and parts 11 and 21 of the elevator device are covered with the fire-resistant covering surface material 4. wooden wall 3b. This allows the elevator shaft 3 Wooden construction in With the wall 3b covered with the fire-resistant coating surface material 4, an elevator device can be installed in the elevator shaft 3, thereby improving the fire resistance of the building 1 in which the elevator device is installed.

[0008] The invention described in claim 2 is, for example, as shown in Figs. 1 to 12, in the installation structure of the elevator apparatus described in claim 1, The elevator device includes: a basket device 30; a hoist that raises and lowers the cage device 30; Lifting beams 10, 20 are bridged between two parallel walls 3b of the walls 3b; Brackets 11 and 21 are provided on each of the two parallel walls 3b of the wall 3b, and support the lifting beams 10 and 20 by placing the longitudinal side ends of the lifting beams 10 and 20 thereon, The brackets 11 and 21 are fixed to the wall 3b from the surface of the fire-resistant coating surface material 4 by the fixing members 12 and 22.

[0009] According to the invention recited in claim 2, brackets 11, 21 for supporting lifting beams 10, 20 are fixed to wall 3b from the surface of fire-resistant coating surface material 4 by fixing members 12, 22, so brackets 11, 21 can be fixed to wall 3b via fire-resistant coating surface material 4 while wall 3b of elevator shaft 3 is covered with fire-resistant coating surface material 4. This makes it possible to install lifting beams 10, 20 supported by brackets 11, 21, and therefore car device 30, in elevator shaft 3 with wall 3b of elevator shaft 3 covered with fire-resistant coating surface material 4, and as a result, it is possible to improve the fire resistance of building 1 in which the elevator device is installed.

[0010] The invention described in claim 3 is, for example, as shown in Figs. 1 to 12, in the installation structure of the elevator apparatus described in claim 2, A core material 5 serving as a fixing base for the fixing members 12 and 22 is incorporated into the wall 3b at the fixing locations of the brackets 11 and 21.

[0011] According to the invention recited in claim 3, core material 5, which serves as a fixing base for fixing members 12, 22, is incorporated into the fixing locations of brackets 11, 21 on wall 3b, so that fixing members 12, 22 can be firmly fastened to core material 5. As a result, even when wall 3b of elevator shaft 3 is covered with fire-resistant covering surface material 4, brackets 11, 21 can be firmly fixed to their own fixing locations.

[0012] The invention described in claim 4 is, for example, as shown in Figs. 1 to 12, in the installation structure of the elevator apparatus described in claim 2, The brackets 11 and 21 are Base portions 11a, 21a fixed to the surface of the fire-resistant coating surface material 4; and protruding portions 11b, 21b that protrude from the surfaces of the base portions 11a, 21a and on which the longitudinal side ends of the lifting beams 10, 20 are placed, The fixing members 12 and 22 are characterized in that they fix the base portions 11a and 21a to the wall 3b at upper and lower positions sandwiching the overhanging portions 11b and 21b.

[0013] According to the invention described in claim 4, the fixing members 12, 22 fix the base portions 11a, 21a to the wall 3b at upper and lower positions sandwiching the protrusion portions 11b, 21b, so that the load acting on the brackets 11, 21 can be effectively distributed, and as a result, the elevator device can be reliably supported.

[0014] The invention described in claim 5 is, for example, as shown in Figs. 1 to 6, in the installation structure of the elevator apparatus described in claim 4, The bracket 11 is A stiffener 11c is provided between the lower surface of the protruding portion 11b and the surface of the base portion 11a, The lifting beam 10 is characterized in that its longitudinal side end portions are located above the stiffeners 11c.

[0015] According to the invention described in claim 5, the longitudinal side end of the lifting beam 10 is located above the stiffener 11c that is arranged to span between the underside of the protrusion 11b and the surface of the base 11a, making it easier and more reliable to support the lifting beam 10 by the bracket 11.

[0016] The invention described in claim 6 is, for example, as shown in Figs. 7 to 11, in the installation structure of the elevator apparatus described in claim 4, The bracket 21 is a side wall 21c provided between the upper surface of the protruding portion 21b and the surface of the base portion 21a; The lifting beam 20 has a feature that its longitudinal side end is fixed to the side wall 21c.

[0017] According to the invention described in claim 6, the longitudinal side ends of the lifting beam 20 are fixed to the side walls 21c that are provided between the upper surfaces of the overhanging portions 21b and the surface of the base portion 21a, thereby preventing the lifting beam 20 from shifting position. This improves the stability of the lifting and lowering operation of the car device 30, and ultimately improves the installation condition of the elevator device.

[0018] The invention described in claim 7 is, for example, as shown in FIG. 5, in the installation structure of the elevator apparatus described in claim 2, The bracket 11 is characterized in that the longitudinal side ends of the plurality of lifting beams 10 are placed on it.

[0019] According to the seventh aspect of the invention, the lengthwise side ends of a plurality of lifting beams 10 are placed on the bracket 11, so that the lifting beams 10 can be supported efficiently by one bracket 11.

[0020] The invention described in claim 8 is, for example, as shown in Figs. 2 and 7, in the installation structure of the elevator apparatus described in claim 2, The lifting beams 10 and 20 are characterized in that they are not covered with the fire-resistant covering surface material 4.

[0021] According to the invention described in claim 8, the lifting beams 10, 20 are not covered with the fire-resistant coating surface material 4, which eliminates the need to cover the lifting beams 10, 20 with the fire-resistant coating surface material 4. Furthermore, even if the lifting beams 10, 20 are not covered with the fire-resistant coating surface material 4, the wall 3b of the elevator shaft 3 is covered with the fire-resistant coating surface material 4, which improves the fire resistance of the building 1 in which the elevator device is installed.

[0022] The invention described in claim 9 is, for example, as shown in Figs. 1 to 3, 6, and 7, in the installation structure of the elevator apparatus described in claim 2, The elevator device includes: a basket guide rail 31 for guiding the raising and lowering operation of the basket device 30; and cage rail support brackets 13, 23 provided on each of the two walls 3b and supporting the cage guide rails 31. The cage rail support brackets 13, 23 are fixed to the wall 3b from the surface of the fire-resistant coating surface material 4 by the fixing members 12, 24.

[0023] According to the invention of claim 9, the car rail support brackets 13, 23 that support the car guide rails 31 for guiding the raising and lowering operation of the car device 30 are fixed to the wall 3b from the surface of the fire-resistant coating surface material 4 by the fixing members 12, 24, so that the wall 3b of the elevator shaft 3 is covered with the fire-resistant coating surface material 4, and the car rail support brackets 13, 23 can be fixed to the wall 3b via the fire-resistant coating surface material 4. As a result, the fire resistance of the building 1 in which the elevator device is installed can be improved.

[0024] The invention described in claim 10 is, for example, as shown in Figs. 1 to 3, in the installation structure of the elevator apparatus described in claim 2, The elevator device includes: a counterweight 32 suspended by the same suspension body as the car device 30, which moves up and down inside the elevator shaft 3 while balancing the weight of the car device 30; a weight guide rail 33 for guiding the lifting and lowering movement of the counterweight 32; a plurality of weight rail receiving brackets 34 provided on at least one surface of the wall 3b and supporting the weight guide rails 33; A plurality of the weight rail receiving brackets 44 are fixed to the wall 3b from the surface of the fire-resistant covering surface material 4 by the fixing members 12, 24.

[0025] According to the invention recited in claim 10, the plurality of weight rail support brackets 34, which support the weight guide rails 33 for guiding the lifting and lowering movement of the counterweight 32, are fixed to the wall 3b from the surface of the fire-resistant covering surface material 4 by the fixing members 12, 24, so that the wall 3b of the elevator shaft 3 is covered with the fire-resistant covering surface material 4, and the plurality of weight rail support brackets 34 can be fixed to the wall 3b via the fire-resistant covering surface material 4. This ultimately improves the fire resistance of the building 1 in which the elevator system is installed. Furthermore, since the multiple weight rail support brackets 34 are provided on at least one of the walls 3b of the elevator shaft 3, the counterweight 32 can be positioned close to at least one of the walls 3b without having to install a beam or the like between the two parallel walls 3b.

[0026] The invention described in claim 11 is, for example, as shown in Figs. 1 to 3, in the installation structure of the elevator apparatus described in claim 9, The elevator device includes: a counterweight 32 suspended by the same suspension body as the car device 30, which moves up and down inside the elevator shaft 3 while balancing the weight of the car device 30; a weight guide rail 33 for guiding the lifting and lowering movement of the counterweight 32; a plurality of weight rail support brackets 34 provided on one of the two walls 3b and supporting the weight guide rails 33; A plurality of the weight rail receiving brackets 34 are fixed to the wall 3b from the surface of the fire-resistant covering surface material 4 by the fixing members 12 and 24, Of the multiple weight rail support brackets 34, the weight rail support bracket 34 arranged adjacent to the basket guide rail 31 is characterized in that it is formed integrally with the basket rail support bracket 13 that supports the basket guide rail 31 arranged adjacently.

[0027] According to the invention recited in claim 11, the plurality of weight rail support brackets 34, which support the weight guide rails 33 for guiding the lifting and lowering movement of the counterweight 32, are fixed to the wall 3b from the surface of the fire-resistant covering surface material 4 by the fixing members 12, 24, so that the wall 3b of the elevator shaft 3 is covered with the fire-resistant covering surface material 4, and the plurality of weight rail support brackets 34 can be fixed to the wall 3b via the fire-resistant covering surface material 4. This ultimately improves the fire resistance of the building 1 in which the elevator system is installed. Furthermore, since the multiple weight rail support brackets 34 are provided on at least one of the walls 3b of the elevator shaft 3, the counterweight 32 can be positioned close to at least one of the walls 3b without having to install a beam or the like between the two parallel walls 3b. Moreover, of the multiple weight rail support brackets 34, the weight rail support bracket 34 arranged adjacent to the basket guide rail 31 is formed integrally with the basket rail support bracket 13 that supports the adjacent basket guide rail 31, so the basket rail support bracket 13 and weight rail support bracket 34 formed integrally simultaneously support the basket guide rail 31 and the weight guide rail 33. Therefore, the basket guide rail 31 and the weight guide rail 33 can be supported efficiently by a single integrated bracket.

[0028] The invention described in claim 12 is, for example, as shown in FIG. 12, in the installation structure of the elevator apparatus described in claim 1, The elevator device includes: a basket device 30; a hydraulic jack device 35 installed between one surface of the wall 3b and the cage device 30, which raises and lowers the cage device 30 by extension and contraction of a plunger 35a; a jack guide rail 36 for guiding the extension and retraction movement of the plunger 35a in the hydraulic jack device 35; a jack rail support bracket 37 provided on one surface of the wall 3b and supporting the jack guide rail 36, The jack rail support bracket 37 is fixed to the wall 3b from the surface of the fire-resistant coating surface material 4 by the fixing members 12, 24.

[0029] According to the invention of claim 12, the jack rail support bracket 37, which supports the jack guide rail 36 for guiding the extension and retraction movement of the plunger 35a in the hydraulic jack device 35, is fixed to the wall 3b from the surface of the fire-resistant covering surface material 4 by the fixing members 12, 24, so that the wall 3b of the elevator shaft 3 is covered with the fire-resistant covering surface material 4, and the jack rail support bracket 37 can be fixed to the wall 3b via the fire-resistant covering surface material 4. As a result, the fire resistance of the building 1 in which the elevator device is installed can be improved. Furthermore, since the hydraulic jack device 35 is installed between one surface of the wall 3b and the cage device 30, the jack rail support bracket 37 is fixed to one surface of the wall 3b, making it possible to install the hydraulic jack device 35 without having to span a beam or the like between the two parallel walls 3b.

[0030] The invention described in claim 13 is a construction method for constructing the installation structure of the elevator apparatus described in any one of claims 4 to 6, as shown in, for example, Figs. 6 and 11, a step of attaching the fire-resistant coating surface material 4 to the wall 3b; a step of temporarily fixing a temporary support material (6) to a portion of the fire-resistant coating surface material (4) attached to the wall (3b) located directly below the fixing portions of the brackets (11, 21); a step of placing the lower end portions of the base portions 11a, 21a on an upper surface of the temporary support material 6; The method is characterized by having a step of fixing the base portions 11a, 21a to the wall 3b from the surface of the fire-resistant coating surface material 4 using the fixing materials 12, 22 while the lower ends of the base portions 11a, 21a are placed on the upper surface of the temporary support material 6.

[0031] According to the invention described in claim 13, the base portions 11a, 21a are fixed to the wall 3b from the surface of the fire-resistant coating surface material 4 by the fixing materials 12, 22 while the lower ends of the base portions 11a, 21a are placed on the upper surface of the temporary support material 6, so that the workers performing the work of fixing the brackets 11, 21 do not need to support the heavy brackets 11, 21 while performing the work, thereby reducing the burden on the workers. Furthermore, after the fire-resistant coated surface material 4 is attached to the wall 3b, the brackets 11, 21 are fixed to the wall 3b from the surface of the fire-resistant coated surface material 4 by the fasteners 12, 22, so that the brackets 11, 21 can be fixed to the wall 3b via the fire-resistant coated surface material 4 while the wall 3b of the elevator shaft 3 is covered with the fire-resistant coated surface material 4. This makes it possible to install the lifting beams 10, 20 supported by the brackets 11, 21, and thus the car device, in the elevator shaft 3 with the wall 3b of the elevator shaft 3 covered with the fire-resistant coated surface material 4, and as a result, the fire resistance of the building 1 in which the elevator device is installed can be improved. [Effects of the Invention]

[0032] According to the present invention, it is possible to install an elevator device in an elevator shaft while covering the walls of the elevator shaft with a fire-resistant coating surface material, thereby improving the fire resistance of the building in which the elevator device is installed. [Brief explanation of the drawings]

[0033] [Figure 1] FIG. 1 is a longitudinal section showing an elevator shaft in a building. [Figure 2] FIG. 1 is an enlarged cross-sectional view showing the elevator shaft and the first commercial lifting beam. [Figure 3] FIG. 2 is a cross-sectional plan view showing an elevator shaft and a rope elevator device. [Figure 4] FIG. 3 is an enlarged view of a main part in FIG. 2. [Figure 5]FIG. 10 is a front view of the first bracket receiving the first lifting beam. [Figure 6] 10A and 10B are diagrams illustrating a method for installing the first bracket. [Figure 7] FIG. 1 is an enlarged cross-sectional view showing the elevator shaft and the second lifting beam for small-scale use. [Figure 8] FIG. 8 is an enlarged view of a main part in FIG. 7. [Figure 9] FIG. 10 is an exploded view of a second bracket that receives a second lifting beam. [Figure 10] FIG. 10 is a front view of a second bracket that receives a second lifting beam. [Figure 11] 10A and 10B are diagrams illustrating a method for installing a second bracket. [Figure 12] 1 is a cross-sectional plan view showing a hydraulic elevator provided with a hydraulic elevator device. DETAILED DESCRIPTION OF THE INVENTION

[0034] 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.

[0035] First Embodiment In Figure 1, reference numeral 1 denotes a building. This building 1 is a five-story residence, with the first floor made of reinforced concrete and the second and higher floors made of wood. A roof 1a is provided on top of the building 1. The first floor of the building 1 is formed integrally with the foundation 2, and the building 1 has an elevator shaft 3 formed from the foundation 2 to the roof 1a.

[0036] The elevator shaft 3 is a space in which a car device (not shown) in the elevator device moves up and down. The first floor slab is made of reinforced concrete, and the location where the elevator shaft 3 will be formed has no slab constructed, leaving an underground space. This underground space is called pit 3a, and the lower end of the car device that descends to the first floor is located there. This pit 3a also houses the equipment necessary for raising and lowering the car device, as well as the facility piping and wiring of building 1.

[0037] 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 3 also has the first floor made of reinforced concrete and the second and higher floors made of wood. In other words, elevator shaft 3 is divided into a reinforced concrete section and a wooden section. Furthermore, since the wooden portion of the elevator shaft 3 has lower fire resistance than the reinforced concrete portion, fire-resistant coating surface material 4 is attached as shown in Figures 2 to 4 to improve fire resistance.

[0038] 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 3b and ceiling 3c of the elevator shaft 3.

[0039] 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 3, the walls 3b on the second floor and above are wall structures whose main component is such wooden panels P, and where necessary, the walls are constructed with two layers of wooden panels P. Then, two layers of fire-resistant covering surface material 4 are attached to the surface of the wall 3b made of wooden panels P.

[0040] An opening for an entrance / exit is formed on each floor in the wall 3b, and is set so that when the car device 30 of the elevator device stops at each floor, the opening formed in the wall 3b is aligned with the entrance / exit of the car device 30. The opening on each floor is opened and closed by a door (exterior door).

[0041] 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 roof 1a 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.

[0042] A rope-type elevator device is installed in the elevator shaft 3 configured as described above. The elevator device of this embodiment is a so-called commercial-size elevator device, and includes a car device 30, a counterweight 32, a hoist, a lifting beam 10, a bracket 11, a car guide rail 31, a weight guide rail 33, a car rail support bracket 13, and a weight rail support bracket 34.

[0043] As shown in Figure 3, the car device 30 is used by people to board and ascend and descend within the elevator shaft 3, and has an entrance on one side. The entrance is opened and closed by an inner door for the car device 30. This inner door is set to open and close in conjunction with the outer doors on each floor. The car device 30 of this embodiment has a capacity of 9 people (load capacity of 600 kg). Although not shown, the room size of the car device is 1100 mm deep and 1400 mm wide, with a double sliding door and an opening width of 800 mm. In this embodiment, the basket device 30 has an entrance on one side, but the entrance may be formed on two sides.

[0044] As shown in Figure 3, the counterweight 32 is suspended by the same suspension body as the car device 30, and moves up and down in the elevator shaft 3 while balancing the weight of the car device 30. The elevator shaft 3 is divided into an elevator path for the car device 30 and an elevator path for the counterweight 32.

[0045] The hoist, not shown, is used to raise and lower the cage device 30 and counterweight 32, and is attached to the cage guide rail 31 and placed at the top of the elevator shaft 3. However, this is not limiting, and the hoist may also be placed in the pit 3a. Such a hoist has a drive sheave and a hoist body. The hoist main body has a hoist motor and a hoist brake. The hoist motor rotates the drive sheave. The hoist brake keeps the drive sheave stationary. The hoist brake also brakes the rotation of the drive sheave. A suspension body is wound around the drive sheave. The suspension body is made of multiple ropes or belts. The cage device 30 and counterweight 32 are suspended by the suspension body, and are raised and lowered in the elevator shaft 3 by rotating the drive sheave.

[0046] The lifting beam 10 is a jig used to lift components to a predetermined position during construction, and as shown in Figures 2, 3, and 5, is placed at the top of the elevator shaft 3 and is installed to span between two parallel walls 3b of the elevator shaft 3. For ease of explanation, the lifting beam 10 in this embodiment is referred to as the first lifting beam 10. The first lifting beam 10 is a steel beam, and a so-called H-shaped steel is used, so that the first lifting beam 10 has a web 10a and upper and lower flanges 10b. In this embodiment, a plurality of (for example, two or three) first lifting beams 10 are provided so as to span between two parallel walls 3b. The suspension body connected to the cage device 30 is arranged so as to pass between any two of the plurality of first lifting beams 10.

[0047] The first lifting beam 10 is not covered with the fire-resistant covering surface material 4. That is, the web 10a and flange 10b of the first lifting beam 10, which is an H-shaped steel, are exposed.

[0048] 1 to 5, the brackets 11 are provided on each of two parallel walls 3b of the elevator shaft 3, and the longitudinal side ends of the first lifting beam 10 are placed on the brackets 11 to support the first lifting beam 10. For ease of explanation, the brackets 11 in this embodiment will be referred to as first brackets 11. The first bracket 11 is made of steel and has a base portion 11a, a protruding portion 11b, a stiffener 11c, and a load distribution plate 11d.

[0049] The base portion 11a is a rectangular base plate having a plurality of through holes 11a1 through which the fixing members 12 are passed. The protruding portion 11b is joined to the front surface, and the back surface is in contact with the wall 3b.

[0050] The protruding portion 11b is a horizontal plate formed in a rectangular shape, and is provided so as to protrude forward from the center in the vertical direction of the surface of the base portion 11a, and is firmly joined and fixed to the surface of the base portion 11a by welding. The longitudinal side end of the first lifting beam 10 is placed on the upper surface of the protruding portion 11b. More specifically, the longitudinal side end of the first lifting beam 10 is placed via a load distribution plate 11d provided on the upper surface of the protruding portion 11b.

[0051] The width of the overhanging portion 11b and the width of the base portion 11a are set to be equal, as shown in Fig. 5. A plurality of through holes 11a1 through which the fixing material 12 is passed are formed at positions above and below the base portion 11a, sandwiching the overhanging portion 11b therebetween. In the case of the first bracket 11 shown in Fig. 5, the through holes 11a1 are formed at two positions above the overhanging portion 11b and two positions below the overhanging portion 11b (eight positions in total) at both widthwise ends of the base portion 11a.

[0052] The stiffener 11c is provided to bridge between the underside of the overhanging portion 11b and the surface of the base portion 11a. The longitudinal side ends of the first lifting beam 10 are arranged to be located above the stiffener 11c. In other words, the stiffener 11c is arranged corresponding to the locations where the longitudinal side ends of the first lifting beam 10 will be arranged, bridges between the underside of the overhanging portion 11b and the surface of the base portion 11a, and is welded to the underside of the overhanging portion 11b and the surface of the base portion 11a.

[0053] The load distribution plate 11d is a rectangular plate interposed between the upper surface of the overhanging portion 11b and the longitudinal side end of the first lifting beam 10, and is welded to the upper surface of the overhanging portion 11b. The longitudinal side end of the first lifting beam 10 is placed on and fixed to the upper surface of the load distribution plate 11d. However, there are cases where the longitudinal side end of the first lifting beam 10 is not placed on and fixed to the upper surface of the load distribution plate 11d.

[0054] In this embodiment, a coach bolt is used as the fixing member 12. When fixing the first bracket 11 to the wall 3b, the fixing member 12, which is a coach bolt, fixes the base portion 11a to the wall 3b at upper and lower positions across the overhanging portion 11b. Additionally, a core material 5 that serves as a fixing base for the fixing members 12 is incorporated into the wall 3b at the location where the first bracket 11 is fixed. In other words, the wall 3b of the elevator shaft 3 is composed of architectural wood panels P and the core material 5. The core material 5 is a wooden beam material, and has a beam configuration that is equal to the vertical dimension of the base portion 11a. More specifically, core material 5, which is a wooden beam, is located at the upper end of architectural wood panel P at a height corresponding to the fixed location of first bracket 11, and architectural wood panels P for upper floors are provided above core material 5. Furthermore, core material 5 is arranged on all four sides of wall 3b of elevator shaft 3. In other words, core material 5 is formed into a rectangular tube shape by being arranged on all four sides at the height where first bracket 11 is located in elevator shaft 3, and together with architectural wood panel P, it constitutes elevator shaft 3. Furthermore, fire-resistant coating surface material 4 is attached to the surface of wall 3b of elevator shaft 3, which is made up of architectural wood panel P and core material 5, providing a fire-resistant coating.

[0055] The first bracket 11 is fixed to the wall 3b from the surface of the two-ply fire-resistant covering face material 4 by means of fixing members 12. That is, fixing members 12 are passed through the base portion 11a by passing them through a plurality of through-holes 11a1 formed in the base portion 11a, and fixing members 12 are screwed toward the core material 5 while penetrating the two-ply fire-resistant covering face material 4 until the heads of fixing members 12 come into strong contact with the surface of the base portion 11a. In addition, the fire-resistant coating surface material 4 may be provided with through holes for passing the fixing material 12 therethrough to prevent the fire-resistant coating surface material 4 from cracking. The method of attaching the first bracket 11 will be described in detail later.

[0056] As shown in Figure 3, the car guide rails 31 are rails for guiding the ascending and descending movement of the car device 30. The car guide rails 31 are arranged along the height direction within the elevator shaft 3, and can guide the car device 30 so that it can ascend and descend without swaying from the first floor to the fifth floor. The car device 30 is equipped with a rail sliding portion (not shown) that slides along the car guide rails 31. In this embodiment, a pair of basket guide rails 31 that are long in the vertical direction are used, and these pair of basket guide rails 31 are arranged on both sides of the basket device 30. Therefore, the rail sliding portions are provided on both side surfaces of the basket device 30.

[0057] As shown in Figure 3, the weight guide rail 33 is a rail for guiding the ascending and descending movement of the counterweight 32. The weight guide rail 33 is arranged along the height direction within the elevator shaft 3, and can guide the counterweight 32 so that it can ascend and descend without swaying from the first floor to the fifth floor. The counterweight 32 is equipped with a rail sliding portion (not shown) that slides along the weight guide rail 33. In this embodiment, a pair of weight guide rails 33 that are long in the vertical direction are used, and these pair of weight guide rails 33 are arranged on both sides of the counterweight 32. Therefore, rail sliding portions are provided on both side surfaces of the counterweight 32.

[0058] The cage rail support bracket 13 is for supporting the cage guide rail 31, and in this embodiment, has the same shape as the first bracket 11. Therefore, the cage rail support bracket 13 has a base portion 13a, a protruding portion 13b, a stiffener 13c, and a load distribution plate (not shown). For ease of explanation, the cage rail support bracket 13 of this embodiment will be referred to as a first cage rail support bracket 13. Base portion 13a is a portion fixed to wall 3b by fixing members 12, and is fixed to wall 3b from the surface of fire-resistant covering surface material 4. Furthermore, protruding members 14 that protrude toward cage device 30 are provided on overhanging portion 13b, which is reinforced by stiffeners 13c. A cage guide rail 31 is fixed to the tip of this protruding member 14. Note that, for example, shaped steel such as angle bars, I-beams, or channel steel is suitably used as protruding member 14, and it may be connected to overhanging portion 13b by welding or the like, or by bolts and nuts. The stiffener 13c is necessary when supporting the vertical load of the first lifting beam 10, but is not essential when supporting the cage guide rail 31. Therefore, if the purpose is only to support the cage guide rail 31, the stiffener 13c may be omitted.

[0059] 2 and 3, the first car rail support bracket 13 of this embodiment is provided on each of two parallel walls 3b of the elevator shaft 3 on which the first bracket 11 is provided. A pair of first car rail support brackets 13 is provided facing each other at each height position, and a plurality of pairs of first car rail support brackets 13 are arranged at intervals in the height direction of the elevator shaft 3. Furthermore, the locations where the pair of first car rail support brackets 13 are fixed are at the positions of the core material 5 on the walls 3b. If the cage guide rails 31 are also required on the other wall 3b, the first cage rail receiving brackets 13 may be provided on the other wall 3b as well.

[0060] The first cage rail support bracket 13 has the same shape as the first bracket 11, and therefore the installation method is also the same. That is, the fixing material 12 is passed through the base portion 13a by passing it through the multiple through holes 13a1 formed in the base portion 13a, and the fixing material 12 is screwed into the core material 5 while passing through the two-ply fire-resistant coating face material 4 until the head of the fixing material 12 makes strong contact with the surface of the base portion 13a.

[0061] The weight rail support bracket 34 is for supporting the weight guide rail 33, and in this embodiment, has the same shape as the first bracket 11. Therefore, the weight rail support bracket 34 has a base portion, a protruding portion, a stiffener, and a load distribution plate. Note that the stiffener may be omitted as described above. The base portion is fixed to the wall 3b by the fixing members 12, and is fixed to the wall 3b from the surface of the fire-resistant covering surface material 4. A protruding member 34a that protrudes toward the counterweight 32 is provided on the protruding portion reinforced by the stiffener. A weight guide rail 33 is fixed to the tip of this protruding member 34a. Note that, for example, a shaped steel material such as an angle bar, an I-beam, or a channel steel is preferably used as the protruding member 34a, and it may be connected to the protruding portion by welding or the like, or with bolts and nuts. 2 and 3, such a weight rail support bracket 34 is provided on one of two parallel walls 3b of the elevator shaft 3 on which the first bracket 11 is provided. A pair of weight rail support brackets 34 is provided side by side at each height position, and a plurality of pairs of weight rail support brackets 34 are arranged at intervals in the height direction of the elevator shaft 3. Furthermore, the location where the pair of weight rail support brackets 34 is fixed is the position of the core material 5 on the wall 3b. 3, of the pair of weight rail support brackets 34, the weight rail support bracket 34 arranged adjacent to the basket guide rail 31 is integrally formed with the first basket rail support bracket 13 that supports the adjacent basket guide rail 34. In other words, two protruding members 14, 34a are mounted and fixed on one wide integrated bracket 13, 34, and separate guide rails 31, 33 are attached to these two protruding members 14, 34a, respectively.

[0062] Next, we will explain in more detail the installation method (elevator device construction method) of the first bracket 11, the first car rail support bracket 13, and the weight rail support bracket 34. Note that since the installation methods for the first bracket 11, the first car rail support bracket 13, and the weight rail support bracket 34 are the same, we will explain the installation method for the first bracket 11, and will omit explanations of the installation methods for the first car rail support bracket 13 and the weight rail support bracket 34.

[0063] To attach the first bracket 11 to the wall 3b of the elevator shaft 3, first, as shown in Fig. 6, the fire-resistant coating surface material 4 is attached to the wall 3b of the elevator shaft 3. In particular, the fire-resistant coating surface material 4 provided at the fixing point of the first bracket 11 is cut so that its vertical dimension is shortened.

[0064] Next, a temporary support material 6 is temporarily fixed in advance to a portion of the fire-resistant covering surface material 4 provided at the fixing location of the first bracket 11, the portion being located directly below the fixing location of the first bracket 11. The temporary support material 6 is made of, for example, plywood, and is fastened with simple fastening materials such as nails, screws, etc. The height position of the upper surface of the temporary support material 6 is set to be approximately equal to the height position of the lower surface of the core material 5 (the height position of the upper end surface of the architectural wood panel P on which the core material 5 is placed).

[0065] Next, the first bracket 11 is hung from above, and the lower end of the base portion 11a is placed on the upper surface of the temporary support material 6. The protruding portion 11b of the first bracket 11 is formed with a bolt hole for attaching an eyebolt 7, and a wire 8 extending from an electric hoist (not shown) is fastened to the eyebolt 7. The electric hoist is disposed, for example, at the top of the elevator shaft 3.

[0066] Next, the first bracket 11 is hung, and with the lower end of the base portion 11a resting on the upper surface of the temporary support material 6, the base portion 11a is fixed to the wall 3b from the surface of the fire-resistant covering surface material 4 using the fixing material 12. More specifically, the fixing material 12 is screwed into the core material 5 that constitutes the wall 3b together with the architectural wood panel P to fix the base portion 11a. Thereafter, the eyebolt 7 is removed, completing the installation of the first bracket 11. Also, the temporary support material 6 is removed. Then, the fire-resistant coated surface material 4 is attached to the portion of the wall 3b of the elevator shaft 3 where the fire-resistant coated surface material 4 has not been attached. Note that the procedure may be such that the fire-resistant coated surface material 4 is attached to the entire surface of the wall 3b of the elevator shaft 3 in advance, and then the attachment of the first bracket 11 is started.

[0067] When the first bracket 11 is attached as described above, the first lifting beam 10 is installed in the elevator shaft 3 covered with the fire-resistant covering surface material 4. Therefore, the hoist, the cage device that is raised and lowered by the hoist, and the counterweight are also installed in the elevator shaft 3 covered with the fire-resistant covering surface material 4. The first car rail support bracket 13 and the weight rail support bracket 34 are attached in the same manner as the first bracket 11. Therefore, the car guide rail 31 and the weight guide rail 33 supported by the first car rail support bracket 13 and the weight rail support bracket 34 are also installed in the elevator shaft 3 covered with the fire-resistant covering surface material 4. That is, the elevator device is installed in the elevator shaft 3 covered with the fire-resistant covering surface material 4.

[0068] According to this embodiment, the following excellent effects are achieved. That is, first bracket 11 for supporting first lifting beam 10 is fixed to wall 3b from the surface of fire-resistant coated surface material 4 by fixing members 12, so that first bracket 11 can be fixed to wall 3b via fire-resistant coated surface material 4 while wall 3b of elevator shaft 3 is covered with fire-resistant coated surface material 4. This makes it possible to install first lifting beam 10 supported by first bracket 11, and therefore car device 30, in elevator shaft 3 with wall 3b of elevator shaft 3 covered with fire-resistant coated surface material 4, and as a result, it is possible to improve the fire resistance of building 1 in which the elevator device is installed.

[0069] Furthermore, the core material 5 that serves as the fixing base for the fixing material 12 is incorporated into the fixing location of the first bracket 11 on the wall 3b, so that the fixing material 12 can be firmly fastened to the core material 5. As a result, even when the wall 3b of the elevator shaft 3 is covered with the fire-resistant covering surface material 4, the first bracket 11 can be firmly fixed to its own fixing location.

[0070] Furthermore, since the fixing material 12 fixes the base portion 11a to the wall 3b at upper and lower positions sandwiching the protrusion portion 11b, the load acting on the first bracket 11 can be effectively distributed, and as a result, the elevator device can be reliably supported.

[0071] In addition, since the longitudinal side end of the first lifting beam 10 is located above the stiffener 11c that is installed between the underside of the protrusion 11b and the surface of the base 11a, the first bracket 11 can more reliably and more easily support the first lifting beam 10.

[0072] Furthermore, since the longitudinal side ends of a plurality of first lifting beams 10 are placed on the first bracket 11, the first lifting beams 10 can be efficiently supported by one first bracket 11.

[0073] Furthermore, since the first lifting beam 10 is not covered with the fire-resistant coating surface material 4, it is possible to eliminate the need to cover the first lifting beam 10 with the fire-resistant coating surface material 4. Furthermore, even if the first lifting beam 10 is not covered with the fire-resistant coating surface material 4, the wall 3b of the elevator shaft 3 is covered with the fire-resistant coating surface material 4, so the fire resistance of the building 1 in which the elevator device is installed can be improved.

[0074] Furthermore, rail support bracket 13, which supports a guide rail for guiding the raising and lowering movement of car device 30, is fixed to wall 3b from the surface of fire-resistant covering surface material 4 by fixing material 12, so that wall 3b of elevator shaft 3 is covered with fire-resistant covering surface material 4, while first car rail support bracket 13 can be fixed to wall 3b via fire-resistant covering surface material 4. This ultimately improves the fire resistance of building 1 in which the elevator device is installed.

[0075] Furthermore, multiple weight rail support brackets 34, which support weight guide rails 33 for guiding the raising and lowering movement of counterweight 32, are fixed to wall 3b from the surface of fire-resistant covering surface material 4 by fixing members 12, so that wall 3b of elevator shaft 3 is covered with fire-resistant covering surface material 4, while multiple weight rail support brackets 34 are fixed to wall 3b via fire-resistant covering surface material 4. This ultimately improves the fire resistance of building 1 in which the elevator system is installed. Furthermore, since the multiple weight rail support brackets 34 are provided on at least one of the walls 3b of the elevator shaft 3, the counterweight 32 can be positioned close to at least one of the walls 3b without having to install a beam or the like between the two parallel walls 3b.

[0076] Furthermore, of the multiple weight rail support brackets 34, the weight rail support bracket 34 arranged adjacent to the basket guide rail 31 is formed integrally with the basket rail support bracket 13 that supports the adjacent basket guide rail 31, so the basket rail support bracket 13 and weight rail support bracket 34 formed integrally simultaneously support the basket guide rail 31 and the weight guide rail 33. Therefore, the basket guide rail 31 and the weight guide rail 33 can be supported efficiently by a single integrated bracket.

[0077] Furthermore, while the lower end of the base portion 11a of the first bracket 11 is placed on the upper surface of the temporary support material 6, the base portion 11a is fixed to the wall 3b from the surface of the fire-resistant coated surface material 4 by the fixing material 12. Therefore, the worker performing the work of fixing the first bracket 11 does not need to support the heavy first bracket 11 while performing the work, thereby reducing the burden on the worker. Furthermore, after the fire-resistant coated surface material 4 is attached to the wall 3b, the first bracket 11 is fixed to the wall 3b from the surface of the fire-resistant coated surface material 4 by the fasteners 12, so that the first bracket 11 can be fixed to the wall 3b via the fire-resistant coated surface material 4 while the wall 3b of the elevator shaft 3 is covered with the fire-resistant coated surface material 4. This makes it possible to install the first lifting beam 10 supported by the first bracket 11, and thus the car device 30, in the elevator shaft 3 with the wall 3b of the elevator shaft 3 covered with the fire-resistant coated surface material 4, and as a result, it is possible to improve the fire resistance of the building 1 in which the elevator device is installed.

[0078] Furthermore, in recent years, there has been a demand for the realization of a carbon-free society through the promotion of 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.The building of this embodiment has wooden construction on the second floor and above, so it can contribute to the realization of a carbon-free society through the promotion of carbon neutrality and the achievement of the SDGs.

[0079] Second Embodiment Next, a second embodiment of the present invention will be described with reference to the drawings. For convenience of explanation, elements common to the first embodiment will be assigned the same reference numerals and explanations thereof will be omitted or simplified, and the description will focus on components different from the first embodiment.

[0080] In Figure 7 etc., the reference numeral 20 denotes a lifting beam. The lifting beam 20 in this embodiment is made of wood, is located at the top of the elevator shaft 3, and is provided so as to span between two parallel walls 3b of the elevator shaft 3. For ease of explanation, the lifting beam 20 in this embodiment is referred to as a second lifting beam 20. In this embodiment, a plurality of (for example, two or three) second lifting beams 20 are provided so as to span between two parallel walls 3b. The suspension body connected to the cage device is disposed so as to pass between any two of the plurality of second lifting beams 20. The elevator system in this embodiment also uses a rope system, with the car device and counterweight connected by a suspension body, and the car device can ascend and descend within the elevator shaft 3 while maintaining balance with the counterweight. The suspension body is hoisted up by a hoist, which causes the car device and counterweight to ascend and descend.

[0081] The second lifting beam 20 is not covered with the fire-resistant covering surface material 4. In other words, the wooden first lifting beam 10 is not covered with fire-resistant covering and is exposed. Like the first lifting beam 10, this second lifting beam 20 is a jig used to lift members to a predetermined position during construction.

[0082] 7 to 10, the brackets 21 shown in Fig. 7 and the like are provided on each of two parallel walls 3b of the elevator shaft 3, and the longitudinal side ends of the second lifting beam 20 are placed on them to support the second lifting beam 20. For ease of explanation, the brackets 21 in this embodiment will be referred to as second brackets 21. The second bracket 21 is made of steel and has a base portion 21a, a protruding portion 21b, and a side wall 21c.

[0083] The base portion 21a is a rectangular base plate having a plurality of through holes 21a1 formed therethrough for passing the fixing members 22. The protruding portion 21b is joined to the front surface, and the back surface is in contact with the wall 3b. Base portion 21a is fixed to wall 3b from the surface of fire-resistant coating face material 4 by fixing materials 22. That is, fixing materials 22 are passed through a plurality of through-holes 21a1 formed in base portion 21a to penetrate base portion 21a, and fixing materials 22 are screwed toward core material 5 while penetrating two layers of fire-resistant coating face material 4 until the heads of fixing materials 22 come into strong contact with the surface of base portion 21a.

[0084] The extension 21b is a horizontal plate formed in a rectangular shape, and is provided so as to extend forward from the center in the vertical direction of the surface of the base 21a, and is firmly joined and fixed to the surface of the base 21a by welding. The longitudinal side end of the second lifting beam 20 is placed on the upper surface of the protruding portion 21b.

[0085] The width of the overhanging portion 21b and the width of the base portion 21a are set to be equal, as shown in Fig. 9. A plurality of through-holes 21a1 through which the fixing material 22 passes are formed at positions above and below the base portion 21a, sandwiching the overhanging portion 21b. In the case of the second bracket 21 shown in Fig. 9, the through-holes 21a1 are formed in the base portion 21a at two locations above the overhanging portion 21b and two locations below the overhanging portion 21b (four locations in total).

[0086] The side walls 21c are provided to bridge between the upper surface of the overhanging portion 21b and the surface of the base portion 21a. In this embodiment, a pair of side walls 21c are provided to bridge between the overhanging portion 21b and the base portion 21a. Screw holes 21c1 are formed in the pair of side walls 21c. One side wall 21c has multiple screw holes 21c1, while the other side wall 21c has one screw hole 21c1. The screw holes 21c1 formed in the pair of side walls 21c are positioned so as not to face each other.

[0087] The longitudinal side end of the second lifting beam 20 is disposed between the pair of side walls 21c, and both side surfaces of the longitudinal side end contact each of the pair of side walls 21c. Then, by driving screws 21c2 into screw holes 21c1 formed in each of the pair of side walls 21c, the longitudinal side end of the second lifting beam 20 is fixed to the pair of side walls 21c.

[0088] In this embodiment, the fixing member 12 is a coach bolt. A core material 5 that serves as a fixing base for fixing material 22 is incorporated into wall 3b at the location where second bracket 21 is fixed. In this embodiment, only the core material 5 located at the top of elevator shaft 3 has a beam length that is set longer than the vertical dimension of base portion 21 of second bracket 21. Second bracket 21 is positioned and fixed at a position corresponding to the upper part of core material 5, and car rail support bracket 23 is positioned and fixed at a position corresponding to the lower part of core material 5. For core materials 5 located below the top of elevator shaft 3, second bracket 21 and car rail support bracket 23 are not arranged side by side, so the beam length is set shorter than that of core material 5 at the top.

[0089] The car rail support bracket 23 is for supporting a car guide rail (not shown), and in this embodiment is a long metal piece formed with a U-shaped cross section, and is arranged on all four sides of the wall 3b of the elevator shaft 3 together with the core material 5. In this embodiment, for convenience of explanation, it is referred to as a second car rail support bracket 23. This second cage rail support bracket 23 is fixed to the wall 3b from the surface of the fire-resistant coating surface material 4 by fixing materials 24. The cage guide rail is attached to this second cage rail support bracket 23 and is supported by the second cage rail support bracket 23.

[0090] Although not shown, if the elevator apparatus of this embodiment is equipped with a counterweight, the counterweight's ascending and descending motion is also guided by a weight guide rail, as in the first embodiment. The weight guide rail is supported by a weight rail support bracket fixed to the wall 3b of the elevator shaft 3. The configurations, mounting structure, and mounting method of the counterweight, weight guide rail, and weight rail support bracket are the same as those in the first embodiment, so a description thereof will be omitted.

[0091] Next, a method for attaching the second bracket 21 (a method for constructing the elevator device) will be described. To attach the second bracket 21 to the wall 3b of the elevator shaft 3, first, as shown in FIG. 11, the fire-resistant covering surface material 4 is attached to the wall 3b of the elevator shaft 3.

[0092] Next, a temporary support material 6 is temporarily fixed in advance to a portion of the fire-resistant covering surface material 4 provided at the fixing location of the second bracket 21, the portion being located directly below the fixing location of the second bracket 21. The temporary support material 6 is made of, for example, plywood, and is fastened with simple fastening materials 6a such as nails, screws, etc. The height position of the temporary receiving material 6 is determined in consideration of the positional relationship in which the height positions of the upper surface of the core material 5 and the upper end surface of the base portion 21 a of the second bracket 21 are aligned.

[0093] Next, the lower end of the base portion 21a of the second bracket 21 is placed on the upper surface of the temporary support material 6. At this time, the second bracket 21 may be transported by being suspended from above by an electric hoist or the like. In this case, a bolt hole is formed in the protruding portion 21b of the second bracket 21 for attaching an eyebolt 7 to which a wire 8 extending from the electric hoist is tied.

[0094] Next, with the lower end of the base portion 21a of the second bracket 21 resting on the upper surface of the temporary support material 6, the base portion 21a is fixed to the wall 3b from the surface of the fire-resistant covering surface material 4 using the fixing material 22. More specifically, the fixing material 22 is screwed into the core material 5 that constitutes the wall 3b together with the architectural wood panel P to fix the base portion 21a.

[0095] When the second bracket 21 is attached as described above, the second lifting beam 20 is installed in the elevator shaft 3 covered with the fire-resistant covering surface material 4. Therefore, the hoist, the cage device that is raised and lowered by the hoist, and the counterweight are also installed in the elevator shaft 3 covered with the fire-resistant covering surface material 4. The second car rail support bracket 23 is also fixed to the wall 3b from the surface of the fire-resistant covering surface material 4 by means of fixing members 24. Therefore, the car guide rail supported by the second car rail support bracket 23 is also installed in the elevator shaft 3 covered with the fire-resistant covering surface material 4. That is, the elevator device is installed in the elevator shaft 3 covered with the fire-resistant covering surface material 4.

[0096] According to this embodiment, the following excellent effects are achieved. That is, because second bracket 21 for supporting second lifting beam 20 is fixed to wall 3b from the surface of fire-resistant coated surface material 4 by fixing members 22, second bracket 21 can be fixed to wall 3b via fire-resistant coated surface material 4 while wall 3b of elevator shaft 3 is covered with fire-resistant coated surface material 4. This makes it possible to install second lifting beam 20 supported by second bracket 21, and thus the car device, in elevator shaft 3 with wall 3b of elevator shaft 3 covered with fire-resistant coated surface material 4, and as a result, it is possible to improve the fire resistance of building 1 in which the elevator device is installed.

[0097] Furthermore, core material 5, which serves as a fixing base for fixing member 22, is incorporated into the fixing location of second bracket 21 on wall 3b, so fixing member 22 can be firmly secured to core material 5. As a result, even when wall 3b of elevator shaft 3 is covered with fire-resistant covering surface material 4, second bracket 21 can be firmly fixed to its own fixing location.

[0098] Furthermore, since the fixing material 22 fixes the base portion 21a to the wall 3b at upper and lower positions sandwiching the protrusion portion 21b, the load acting on the second bracket 21 can be effectively distributed, and as a result, the elevator device can be reliably supported.

[0099] Furthermore, the longitudinal side ends of the second lifting beam 20 are fixed to the side walls 21c that are provided between the upper surface of the overhanging portion 21b and the surface of the base portion 21a, which prevents the second lifting beam 20 from shifting position. This improves the stability of the lifting and lowering operation of the car device, and ultimately improves the installation condition of the elevator device.

[0100] Furthermore, since the second lifting beam 20 is not covered with the fire-resistant coating surface material 4, it is possible to eliminate the need to cover the second lifting beam 20 with the fire-resistant coating surface material 4. Furthermore, even if the second lifting beam 20 is not covered with the fire-resistant coating surface material 4, the wall 3b of the elevator shaft 3 is covered with the fire-resistant coating surface material 4, so the fire resistance of the building 1 in which the elevator device is installed can be improved.

[0101] Furthermore, second car rail support bracket 23, which supports a guide rail for guiding the raising and lowering movement of the car device, is fixed to wall 3b from the surface of fire-resistant covering surface material 4 by fixing material 24, so that second car rail support bracket 23 can be fixed to wall 3b via fire-resistant covering surface material 4 while wall 3b of elevator shaft 3 is covered by fire-resistant covering surface material 4. This ultimately improves the fire resistance of building 1 in which the elevator device is installed.

[0102] Furthermore, while the lower end of the base portion 21a is placed on the upper surface of the temporary support material 6, the base portion 21a is fixed to the wall 3b from the surface of the fire-resistant coated surface material 4 by the fixing material 22, so the worker performing the work of fixing the second bracket 21 does not need to support the heavy second bracket 21 while performing the work, thereby reducing the burden on the worker. Furthermore, after the fire-resistant coated surface material 4 is attached to the wall 3b, the second bracket 21 is fixed to the wall 3b from the surface of the fire-resistant coated surface material 4 by the fasteners 22, so that the second bracket 21 can be fixed to the wall 3b via the fire-resistant coated surface material 4 while the wall 3b of the elevator shaft 3 is covered with the fire-resistant coated surface material 4. This makes it possible to install the second lifting beam 20 supported by the second bracket 21, and thus the car device, in the elevator shaft 3 with the wall 3b of the elevator shaft 3 covered with the fire-resistant coated surface material 4, and as a result, it is possible to improve the fire resistance of the building 1 in which the elevator device is installed.

[0103] [Modification] The embodiments to which the present invention can be applied are not limited to the above-described embodiments, and can be modified as appropriate without departing from the spirit of the present invention. Modifications will be described below. In the modifications listed below, elements common to the above-described embodiments will be assigned the same reference numerals, and descriptions thereof will be omitted or simplified.

[0104] In this modified example, a hydraulic elevator device is employed, as shown in Fig. 12. That is, the elevator device of this modified example includes a car device 30, a car guide rail (not shown), a car rail support bracket (not shown), a hydraulic jack device 35, a jack guide rail 36, and a jack rail support bracket 37.

[0105] Like the above-described embodiment, the car device 30 is used by passengers to ascend and descend within the elevator shaft 3, and has an entrance on one side. The ascending and descending motion is guided by a long car guide rail that runs along the height of the elevator shaft 3. The car guide rail is supported by a car rail support bracket fixed to the wall 3b. More specifically, the car guide rail is installed by spanning protruding members fixed to a plurality of car rail support brackets that are scattered at intervals along the height of the elevator shaft 3. Meanwhile, a rail sliding portion is provided on the side of the car device 30, and the rail sliding portion slides along the car guide rail, allowing the car device 30 to ascend and descend without swinging.

[0106] The hydraulic jack device 35 is installed between one of the walls 3b of the elevator shaft 3 and the car device 30, and raises and lowers the car device 30 by extending and retracting a plunger 35a. The plunger 35a is positioned so that it can extend and retract along the height direction of the elevator shaft 3. A sheave is provided at the upper end of the plunger 35a, and a suspension body, one end of which is fixed on the pit 3a side, is wound around the sheave. The other end of the suspension body is fixed on the car device 30 side, and the car device 30 is configured to rise and lower as the plunger 35a extends and retracts up and down.

[0107] The jack guide rails 36 are used to guide the extension and retraction movement of the plunger 35a in the jack device 35, and are arranged in pairs along the height direction of the elevator shaft 3. Explaining in more detail, the jack device 35 includes a frame 35b that moves up and down in conjunction with the extension and retraction movement of the plunger 35a, and a rail sliding portion (not shown) is provided on the frame 35b. The jack guide rails 36 are formed long and extend along the height direction of the elevator shaft 3, and the rail sliding portion that moves up and down in conjunction with the extension and retraction movement of the plunger 35a slides along the jack guide rails 36.

[0108] The jack rail support bracket 37 is for supporting the jack guide rail 36, and in this modified example, has the same shape as the first bracket 11 in the first embodiment. Therefore, the jack rail support bracket 37 has a base portion, a protruding portion, a stiffener, and a load distribution plate. The base portion is fixed to the wall 3b by the fixing material 12, and is fixed to the wall 3b from the surface of the fire-resistant covering surface material 4. In addition, a protruding member 37a that protrudes toward the hydraulic jack device 35 is provided on the protruding portion reinforced by the stiffener. A jack guide rail 36 is fixed to the tip of this protruding member 37a. As shown in Figure 12, this type of jack rail support bracket 37 is provided on the wall 3b of the elevator shaft 3, which is located on the door storage space side where the inner door of the car device 30 and the outer door of the entrance of the wall 3b are retracted. A pair of jack rail support brackets 37 is provided side by side at each height position, and multiple pairs of jack rail support brackets 37 are arranged at intervals in the height direction of the elevator shaft 3. Furthermore, the location where the pair of jack rail support brackets 37 is fixed is the position of the core material 5 on the wall 3b. As a result, the hydraulic jack device 35 is installed between one surface of the wall 3b and the car device 30.

[0109] According to this modification, the jack rail support bracket 37, which supports the jack guide rail 36 for guiding the extension and retraction movement of the plunger 35a in the hydraulic jack device 35, is fixed to the wall 3b from the surface of the fire-resistant covering surface material 4 by the fixing material 12, so that the wall 3b of the elevator shaft 3 is covered with the fire-resistant covering surface material 4, and the jack rail support bracket 37 can be fixed to the wall 3b via the fire-resistant covering surface material 4. As a result, the fire resistance of the building 1 in which the elevator device is installed can be improved. Furthermore, since the hydraulic jack device 35 is installed between one surface of the wall 3b and the cage device 30, the jack rail support bracket 37 is fixed to one surface of the wall 3b, making it possible to install the hydraulic jack device 35 without having to span a beam or the like between the two parallel walls 3b. [Explanation of symbols]

[0110] 1. Building 3 Elevator Shaft 3b wall 4 Fireproof coating surface material 5 Core material 6 Temporary support material 10 First lifting beam 11 First bracket 11a Base 11b Overhang 12 Fixing material 13 Rail support bracket for first cage 20 Second lifting beam 21 Second bracket 21a Base 21b Overhang 21c side wall 22 Fixing material 23 Rail support bracket for second cage 30 Cage device 31 Basket guide rail 32 Counterweight 33 Weight guide rail 34 Weight rail support bracket 34a Protruding member 35 Hydraulic jack device 35a plunger 36 Jack guide rail 37 Jack rail support bracket 37a Protruding member P Architectural wood panels

Claims

1. The wooden walls of the elevator shaft are fitted with fire-resistant coating. An elevator installation structure, characterized in that a part of the elevator device arranged inside the elevator shaft is fixed to the wall from the surface of the fire-resistant coating surface material by a fixing material.

2. In the elevator installation structure according to claim 1, The elevator device includes: A cage device; a hoist that raises and lowers the cage device; A lifting beam bridged between two parallel walls among the walls; Brackets are provided on each of the two parallel walls, and support the lifting beams by placing the longitudinal side ends of the lifting beams on the brackets. An elevator installation structure, characterized in that the bracket is fixed to the wall from the surface of the fire-resistant coating surface material by the fixing material.

3. In the elevator installation structure according to claim 2, An elevator installation structure, characterized in that a core material that serves as a fixing base for the fixing material is incorporated into the fixing point of the bracket on the wall.

4. In the elevator installation structure according to claim 2, The bracket is A base portion fixed to the surface of the fire-resistant coating surface material; a protruding portion that protrudes from the surface of the base portion and on which the longitudinal side end of the lifting beam is placed, The elevator installation structure is characterized in that the fixing members fix the base portion to the wall at upper and lower positions across the protrusion portion.

5. The elevator installation structure according to claim 4, The bracket is A stiffener is provided between the lower surface of the protruding portion and the surface of the base portion, An elevator installation structure, characterized in that the longitudinal side end portions of the lifting beams are located above the stiffeners.

6. The elevator installation structure according to claim 4, The bracket is a side wall provided between an upper surface of the protruding portion and a surface of the base portion; An elevator installation structure, characterized in that the longitudinal side ends of the lifting beam are fixed to the side walls.

7. In the elevator installation structure according to claim 2, An elevator installation structure, characterized in that the longitudinal side ends of a plurality of the lifting beams are placed on the bracket.

8. In the elevator installation structure according to claim 2, An elevator installation structure, characterized in that the lifting beam is not covered by the fire-resistant covering surface material.

9. In the elevator installation structure according to claim 2, The elevator device includes: a basket guide rail for guiding the raising and lowering movement of the basket device; and a cage rail support bracket provided on each of the two walls and supporting the cage guide rail, 10. An elevator installation structure, comprising: a car rail support bracket fixed to the wall from the surface of the fire-resistant coating surface material by the fixing material;

10. In the elevator installation structure according to claim 2, The elevator device includes: a counterweight suspended by the same suspension body as the car device and moving up and down inside the elevator shaft while balancing the weight of the car device; a weight guide rail for guiding the lifting and lowering operation of the counterweight; a plurality of weight rail support brackets provided on at least one surface of the wall and supporting the weight guide rails; An elevator installation structure, characterized in that a plurality of the weight rail support brackets are fixed to the wall from the surface of the fire-resistant coating surface material by the fixing material.

11. The elevator installation structure according to claim 9, The elevator device includes: a counterweight suspended by the same suspension body as the car device and moving up and down inside the elevator shaft while balancing the weight of the car device; a weight guide rail for guiding the lifting and lowering operation of the counterweight; a plurality of weight rail support brackets provided on one of the two walls and supporting the weight guide rails; a plurality of the weight rail support brackets are fixed to the wall from the surface of the fire-resistant coating surface material by the fixing material; An elevator installation structure, characterized in that among the plurality of weight rail support brackets, the weight rail support bracket arranged adjacent to the car guide rail is integrally formed with the car rail support bracket supporting the adjacently arranged car guide rail.

12. In the elevator installation structure according to claim 1, The elevator device includes: A cage device; a hydraulic jack device installed between one surface of the wall and the cage device, and configured to raise and lower the cage device by extension and contraction of a plunger; a jack guide rail for guiding the extension and retraction movement of the plunger in the hydraulic jack device; a jack rail support bracket provided on one surface of the wall and supporting the jack guide rail; An elevator installation structure, characterized in that the jack rail support bracket is fixed to the wall from the surface of the fire-resistant coating surface material by the fixing material.

13. A construction method for constructing the elevator apparatus installation structure according to any one of claims 4 to 6, comprising: attaching the fire-resistant covering to the wall; a step of temporarily fixing a temporary support material to a portion of the fire-resistant coating surface material attached to the wall that is located directly below the fixing portion of the bracket; a step of placing a lower end portion of the base portion on an upper surface of the temporary support material; and fixing the base portion to the wall from the surface of the fire-resistant coating surface material using the fixing material while the lower end of the base portion is placed on the upper surface of the temporary support material.

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