Hoisting tool for house module and hoisting method using the same

Abstract

To provide a hoisting tool for a house module and a hoisting method using the same, capable of preventing damage to the module by evenly distributing the load to the module during hoisting.SOLUTION: A hoisting tool 1 for a house module includes an upper fitting 11 attached to an upper structural member 23 of an upper frame body 17 of the house module 3, a lower fitting 13 attached to a lower structural member 27 of a lower frame body 19 of the house module 3, and a connecting tension member 15 connecting the upper fitting 11 and the lower frame body 19. With this configuration, by attaching the upper fitting 11 to the upper structural member 23, attaching the lower fitting 13 to the lower structural member 27, and connecting the upper fitting 11 and the lower fitting 13 by the connecting tension member 15, when the house module 3 is hoisted by the hoisting tool, the upper structural member 23 and the lower structural member 27 bear the external force, so that the load on the upper structural member 23 can be reduced. Furthermore, by reducing the load on the upper structural member 23, it is possible to prevent damage to the house module 3.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a lifting device for a housing module for lifting a housing module manufactured by a frame wall construction method such as the 2x4 (two-by-four) construction method, and a lifting method using the same. [Background technology]

[0002] Conventionally, a modular construction method has been known in which a building such as a house or plant facility is divided into multiple modules using a frame wall construction method, which are prefabricated in a factory, and each of the manufactured modules is transported to a construction site and assembled to construct the building (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-226067 Summary of the Invention [Problem to be solved by the invention]

[0004] In the module construction method described in Patent Document 1, when lifting a module transported to the site, the connecting member of the lifting device is connected to the upper structural member of the module and the module is lifted. Therefore, external forces are concentrated on the upper structural member, which increases the burden on the upper structural member, causing excessive deflection and the risk of damage to the module.

[0005] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a lifting device for residential modules that can distribute the load on the modules during lifting and prevent damage to the modules, and a lifting method using the same. [Means for solving the problem]

[0006] The invention described in claim 1 is a lifting device for a housing module for lifting a housing module manufactured using a wooden frame wall construction method, characterized in that it comprises an upper fitting attached to an upper structural member of the housing module and to which a connecting member of a lifting device is connected, a lower fitting attached to a lower structural member of the housing module, and a connecting tension member connecting the upper fitting and the lower fitting. According to the invention of claim 1, by attaching the upper fitting of the housing module lifting device to the upper structural member, attaching the lower fitting to the lower structural member, and connecting the upper fitting and the lower fitting with a connecting tension member, when the housing module is lifted by the lifting device, the upper structural member and the lower structural member bear the external force, thereby reducing the burden on the upper structural member. Furthermore, by reducing the burden on the upper structural member, damage to the housing module can be prevented.

[0007] The invention described in claim 2 is characterized in that in the housing module lifting device of claim 1, the connecting tension member is provided with a turnbuckle for adjusting tension. According to the invention of claim 2, the tension of the wire rope can be easily adjusted by the turnbuckle.

[0008] The invention described in claim 3 is characterized in that, in the lifting device for residential modules of claim 1 or 2, the upper fitting is attached so as not to protrude from the outer edge of the upper structural member, and the lower fitting is attached so as not to protrude from the outer edge. According to the invention of claim 3, the upper fittings are attached so as not to protrude from the outer edge of the upper structural member, and the lower fittings are attached so as not to protrude from the outer edge of the lower structural member, so that the housing module can be lifted from inside, preventing interference with the joining of the housing modules when assembling the housing modules. Furthermore, after the housing module is installed, the upper fittings and lower fittings can be removed from inside the housing module, ensuring work safety.

[0009] The invention described in claim 4 is a lifting method for lifting a housing module manufactured using a wooden frame wall construction method, comprising the steps of attaching an upper fitting to an upper structural member of the housing module, attaching a lower fitting to a lower structural member of the housing module, and attaching a connecting tension member to connect the upper fitting and the lower fitting, and is characterized in that the housing module is lifted by connecting a connecting member of a lifting device to the upper fitting attached to the upper structural member. According to the method for lifting a housing module as set forth in claim 4, the same effect as that obtained by the lifting device for a housing module as set forth in claim 1 above can be achieved.

[0010] The invention as set forth in claim 5 is the method for lifting a housing module as set forth in claim 4, characterized in that the connecting tension members are provided with turnbuckles for adjusting tension. According to the method for lifting a housing module as set forth in claim 5, the same effect as that obtained by the lifting device for a housing module as set forth in claim 2 above can be achieved.

[0011] The invention described in claim 6 is characterized in that, in the method for lifting a housing module described in claim 4 or 5, the upper fitting is attached so as not to protrude from the outer edge of the upper structural member, and the lower fitting is attached so as not to protrude from the outer edge. According to the method for lifting a housing module as set forth in claim 6, the same effect as that obtained by the lifting device for a housing module as set forth in claim 3 above can be achieved. [Effects of the Invention]

[0012] By being configured as described above, the present invention can distribute the load on the module when it is lifted, thereby preventing damage to the module. [Brief explanation of the drawings]

[0013] [Figure 1]1 is a schematic perspective view of a housing module to which a housing module lifting device according to one embodiment of the present invention is attached. [Figure 2] FIG. 2 is a partially enlarged view of the housing module lifting device shown in FIG. [Figure 3] 2A to 2C are diagrams of the upper fitting of the housing module lifting device shown in FIG. 1, where (a) is a front view, (b) is a plan view, and (c) is a side view. [Figure 4] 2A to 2C are diagrams of the lower fitting of the housing module lifting device shown in FIG. 1, where (a) is a front view, (b) is a plan view, and (c) is a side view. [Figure 5] FIG. 4 is a perspective view of the upper fitting shown in FIG. 3 attached to the upper constituent member. [Figure 6] FIG. 5 is a perspective view of the lower fitting shown in FIG. 4 attached to the lower component member. [Figure 7] FIG. 2 is a perspective view of the turnbuckle shown in FIG. 1 attached to a lower metal fitting. [Figure 8] FIG. 2 is a perspective view of the wire rope shown in FIG. 1 attached to an upper fitting and a turnbuckle. [Figure 9] FIG. 2 is a perspective view of the housing module shown in FIG. 1 in a suspended state. DETAILED DESCRIPTION OF THE INVENTION

[0014] The configuration of a housing module lifting device according to one embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4. FIG. As shown in Figure 1, the lifting device 1 for a housing module is attached to a housing module 3 and connected to a connecting member 5 such as a hook of a lifting device 4 (see Figure 9), thereby enabling the housing module 3 to be lifted, and is equipped with an upper fitting 11, a lower fitting 13, and a connecting tension member 15.

[0015] Here, we will first explain the housing module 3 with reference to Figure 1. The housing module 3 is a component into which a building (house) is divided, and the building is completed by joining each module 3, which has been prefabricated in a factory using a wooden frame construction method such as 2x4 (two-by-four) construction or 2x6 (two-by-six) construction, on site. The housing module 3 comprises an upper frame body 17, a lower frame body 19, and a vertical frame body 21.

[0016] The upper frame 17 forms the ceiling (top surface) of the housing module 3 and includes structural members such as upper structural members 23 and ceiling joists 25 (rough framing). The lower frame 19 forms the floor (bottom surface) of the housing module 3 and includes structural members such as lower structural members 27 and floor plywood 29 installed on the floor joists (not shown). The vertical frame 21 forms the side walls and interior walls of the housing module 3 and includes multiple vertical frames 31 interposed between the upper structural members 23 of the upper frame 17 and the lower structural members 27 of the lower frame 19, reinforcing columns 32 that reinforce the vertical frames 31, and wall plywood 33 attached to the vertical frames 31. Depending on the layout of the house, the vertical frames 31 may not include wall plywood 33, or gypsum board may be installed to form the interior walls.

[0017] As shown in Figures 2 and 3, the upper fitting 11 of the housing module lifting device 1 is T-shaped in plan view and is detachably attached with fasteners 73 such as bolts so as not to protrude from the outer edge of the upper structural member 23. The upper fitting 11 includes a rectangular fixing plate 41 that is fixed to the inner surface of the upper structural member 23, and a rectangular mounting plate 43 that extends vertically from the fixing plate 41. The fixing plate 41 is formed with a plurality of insertion holes 45 (six in the figure) into which fasteners 73 such as bolts are inserted to fasten to the upper structural member 23. The mounting plate 43 is formed with a shackle mounting hole 47 for mounting a shackle 35 for connecting to a connecting member 5 such as a hook of a lifting device 4 such as a crane, and a connecting tension member mounting hole 49 for connecting to a connecting tension member 15.

[0018] As shown in FIGS. 2 and 4 , the lower fitting 13 is an elongated member having an L-shape in cross section. It is detachably attached with fasteners 75 such as bolts so as not to protrude from the outer edge of the lower structural member 27 constituting the lower frame body 19. The lower fitting 13 includes a first fixing portion 51 for fixing to the lower structural member 27, a second fixing portion 53 for fixing to the lower frame portion of the vertical frame 31 of the vertical frame body 21, and an attachment portion 55 for connecting to the connecting tension member 15. The first fixing portion 51 is formed with a plurality of insertion holes 57 for inserting fasteners 75 such as bolts to be fastened to the lower structural member 27, and the plurality of insertion holes 57 are arranged in a staggered pattern. The second fixing portion 53 is formed with a plurality of insertion holes 59 for inserting fasteners 75 to be fastened to the wall plywood 33, and the plurality of insertion holes 59 are arranged in series at predetermined intervals. The attachment portion 55 is formed with an attachment hole 61 for connecting to the connecting tension member 15.

[0019] 2, the connecting tension member 15 includes a wire 63 (in the illustration, it is a wire rope) such as a wire rope or a chain wire, and a turnbuckle 65. The wire rope 63 has eyes 63a, 63b (loops) at both ends, and a first engaging portion 67a of a coupling link 67 is attached to the eye 63a on one end, and the second engaging portion 67b of the coupling link 67 is attached to the connecting tension member mounting hole 49 of the mounting plate 43, thereby connecting the wire rope 63 to the upper fitting 11, and a shackle 72 is attached to the eye 63b on the other end and the eye 69 of the turnbuckle 65, thereby connecting them together. The turnbuckle 65 adjusts the tension of the wire rope 63, and a first engagement portion 74a of a coupling link 74 is attached to an eye 71 opposite to the eye 69 to which the shackle 72 is attached, and a hook 76 attached to a second engagement portion 74b of the coupling link 74 is connected to the mounting hole 61 of the mounting portion 55 of the lower fitting 13 (see Figure 7).

[0020] Next, a method for lifting the housing module 3 using the housing module lifting device 1 will be described with reference to FIGS. In order to lift the housing module 3 at four points using the lifting device 4, the housing module lifting devices 1 are installed at four appropriate points on the housing module 3 (see FIG. 1). In the following explanation, since each process for installing the lifting device 1 for a residential module at four locations on the residential module 3 is the same, only the case where the lifting device 1 for a residential module is installed at one location on the residential module 3 will be explained, and the installation at the other three locations will be omitted.

[0021] First, as shown in Figure 5, the fixing plate 41 of the upper fitting 11 is placed against the inner surface of the upper structural member 23, and the fasteners 73 are inserted into the four insertion holes 45 of the fixing plate 41, and the upper fitting 11 is fixed to the inner surface of the upper structural member 23 using the fasteners 73. Also, the shackle 35 is attached to the mounting plate 43 of the upper fitting 11.

[0022] 6, the first fixing portion 51 of the lower fitting 13 is brought into contact with the lower structural member 27 of the lower frame 19, and fasteners 75 are inserted into the multiple insertion holes 57 of the first fixing portion 51 to fasten the lower fitting 13 to the lower structural member 27 with the fasteners 75. At this time, the mounting plate 43 of the upper fitting 11 and the mounting portion 55 of the lower fitting 13 are positioned approximately coaxially. Here, the lower fitting 13 is fixed to the lower structural member 27, but the fasteners 75 may also be inserted into the multiple insertion holes 59 of the second fixing portion 53 to fasten it to the floor plywood 29 of the lower frame 19 as well.

[0023] Then, as shown in FIG. 7, the first engagement portion 74a of the coupling ring 74 is attached to the eye 71 of the turnbuckle 65, and the wire hook 76 is attached to the second engagement portion 74b of the coupling ring 74. The wire hook 76 is then hooked into the mounting hole 61 of the mounting portion 55 of the lower fitting 13. After that, as shown in FIG. 8, the first engagement portion 67a of the coupling link 67 is attached to the eye 63a of the wire rope 63, and the second engagement portion 67b of the coupling link 67 is attached to the connecting tension member mounting hole 49 of the mounting plate 43 of the upper fitting 11. Furthermore, the eye 63b of the wire rope 63 is connected to the eye 69 of the turnbuckle 65 by the shackle 72. This connects the upper fitting 11 and the lower fitting 13.

[0024] Here, by rotating the body 66 of the turnbuckle 65, the wire rope 63 is pulled and the tension of the wire rope 63 is adjusted.

[0025] Then, as shown in Figure 9, after installing the housing module lifting equipment 1 at four locations on the housing module 3, connecting members 5 such as hooks of the lifting device 4 are attached to the shackles 35 attached to the shackle mounting holes 47 on the mounting plates 43 of each upper fitting 11. After that, the housing module 3 (upper structural member 23 and lower structural member 27) is lifted by the lifting device 4, transported to the designated location, and installed.

[0026] After the housing module 3 is installed, the shackle 35 is removed from the upper fitting 11 to release the connection between the upper fitting 11 and the connecting member 5 of the lifting device 4, and the tension on the wire rope 63 is released using the turnbuckle 65, and the upper fitting 11, lower fitting 13 and connecting tension member 15 of the lifting device 1 for the housing module are removed from the housing module 3.

[0027] It should be noted that the above explanation only shows one example of the process for attaching the lifting device 1 for a residential module to a residential module 3; for example, the lower fitting 13 of the lifting device 1 for a residential module can be attached to the lower frame 19, and then the upper fitting 11 can be attached to the upper frame 17; or the wire rope 63 can be attached to the upper fitting 11, and then the turnbuckle 65 can be attached to the lower fitting 13, and then the wire rope 63 can be attached to the turnbuckle 65; and the process for attaching the lifting device 1 for a residential module to a residential module 3 can be changed as appropriate.

[0028] As described above, the housing module lifting device 1 provides the following operational effects. By attaching the upper fitting 11 of the housing module lifting device 1 to the upper structural member 23 of the upper frame 17 and the lower fitting 13 to the lower structural member 27 of the lower frame 19 and connecting the upper fitting 11 and the lower fitting 13 with the connecting tension member 15, when the housing module 3 is lifted at four points by the lifting device 4, the upper structural member 23 and the lower structural member 27 are lifted, so that the external force is distributed to the upper structural member 23 and the lower structural member 27, thereby reducing the burden on the upper frame 17. Furthermore, by reducing the burden on the upper frame 17, damage to the housing module 3 can be prevented.

[0029] In addition, the tension of the wire rope 63 is adjusted by the turnbuckle 65 of the connecting tension member 15, so that when the housing module 3 is lifted, a force that resists the lifting force acts, thereby suppressing excessive deflection of the upper structural member 23 of the upper frame body 17 and preventing the housing module 3 from tilting.

[0030] Furthermore, since the lower fitting 13 is attached to the lower structural member 27 of the lower frame 19 and is configured to be lifted from the lower frame 19, the cross section of the upper fitting 11 can be made smaller, allowing the upper fitting 11 to be made more compact.

[0031] According to the housing module lifting device 1, the upper fitting 11 is attached so as not to protrude from the outer edge of the upper structural member 23, and the lower fitting 13 is attached so as not to protrude from the outer edge of the lower structural member 27, so that the housing module 3 can be lifted from inside, preventing interference with the joining of the housing modules when assembling the housing module 3. Furthermore, after the housing module 3 is installed, the upper fitting 11 and lower fitting 13 can be removed from inside the housing module 3, ensuring safety during the work.

[0032] In one embodiment of the lifting device 1 for residential modules, a turnbuckle 65 is attached to the lower fitting 13, but the turnbuckle 65 may also be attached to the upper fitting 11, or a wire member 63 such as a wire rope or chain wire may be attached to each of the upper fitting 11 and the lower fitting 13, and a turnbuckle 65 may be attached to each wire member 63. [Explanation of symbols]

[0033] 1...hoisting equipment for housing module, 4...hoisting device, 5...connecting member, 11...upper metal fitting, 13...lower metal fitting, 15...connecting tension member, 23...upper structural member, 27...lower structural member

Claims

1. A lifting device for a housing module for lifting a housing module manufactured by a wooden frame wall construction method, an upper fitting attached to an upper structural member of the housing module and to which a connecting member of a lifting device is connected; a lower fitting attached to a lower structural member of the housing module; A lifting device for a housing module, comprising: a connecting tension member that connects the upper fitting and the lower fitting.

2. 2. The lifting device for a housing module according to claim 1, wherein the connecting tension member is provided with a turnbuckle for adjusting tension.

3. The lifting device for a housing module according to claim 1 or 2, characterized in that the upper fitting is attached so as not to protrude beyond the outer edge of the upper structural member, and the lower fitting is attached so as not to protrude beyond the outer edge.

4. A lifting method for lifting a housing module manufactured by a wood-frame construction method, comprising: attaching an upper fitting to an upper structural member of the housing module; attaching a lower fitting to a lower structural member of the housing module; attaching a connecting tension member to connect the upper fitting and the lower fitting; A method for lifting a housing module, comprising connecting a connecting member of a lifting device to the upper fitting attached to the upper structural member, and lifting the housing module.

5. 5. The method for lifting a housing module according to claim 4, wherein the connecting tension members are provided with turnbuckles for adjusting tension.

6. 6. A method for lifting a housing module according to claim 4 or 5, wherein the upper fitting is attached so as not to protrude beyond the outer edge of the upper structural member, and the lower fitting is attached so as not to protrude beyond the outer edge.

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