Connection plate metal fitting and wooden built-up house connection method

Abstract

To provide a connection plate metal fitting which can easily connect a foundation laid at a foundation rising and a first-floor wooden built-up house built on the foundation in a short time, without requiring time and labor.SOLUTION: In a connection plate metal fitting, a rear surface of an upper area 34 of a post-mounted connection plate metal fitting 10B is overlapped with a front surface of a lower area 19 of a pre-mounted connection plate metal fitting 10A, a plurality of screw holes bored in the lower area 19 of the pre-mounted connection plate metal fitting 10A are overlapped with a plurality of screw holes bored in the upper area 34 of the post-mounted connection plate metal fitting 10B, and screws 73 are driven into those screw holes. Thereby, a wooden wall panel 15a of a first-floor wooden built-up house 12A and an upper area 20 of the pre-mounted connection plate metal fitting 10A are connected and fixed, a foundation 11 and a lower area 33 of the post-mounted connection plate metal fitting 10B are connected and fixed, and an orthogonal laminated floor plate 14 of the first-floor wooden built-up house 12A, the lower area 19 of the pre-mounted connection plate metal fitting 10A, and the upper area 34 of the post-mounted connection plate metal fitting 10B are connected and fixed.SELECTED DRAWING: Figure 15

Description

[Technical Field]

[0001] The present invention relates to a connecting plate fitting that connects a foundation to a first-floor wooden prefabricated house or a first-floor wooden prefabricated house to a second-floor wooden prefabricated house, and also relates to a wooden prefabricated house connecting method that uses connecting plate fittings to connect a foundation to a first-floor wooden prefabricated house or to connect a first-floor wooden prefabricated house to a second-floor wooden prefabricated house using connecting plate fittings. [Background technology]

[0002] When joining vertical wall members to a floor panel that integrates a base, floor joists, and floor surface material, a joining structure for vertical members has been disclosed in which the side panels of a hold-down hardware are fixed to the sides of the vertical members, connecting members that protrude from the base and penetrate the floor surface material are inserted into the horizontal plates of the hold-down hardware to fasten the horizontal plates from both above and below, and a buckling prevention member that supports the connecting member in the middle part from a direction perpendicular to the axis is provided on the side of the floor joists of the floor (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4758567 Summary of the Invention [Problem to be solved by the invention]

[0004] The joint structure disclosed in Patent Document 1 involves joining wall panels (vertical frames) to floor panels (bases), which are substructural materials, during factory production by nailing the side panels of the hold-down hardware to the sides of the vertical frames, and inserting connecting members that protrude from the base and penetrate the floor surface material and soffit into the horizontal plates of the hold-down hardware and fastening them to the horizontal plates from both above and below using upper and lower nuts. With this joint structure, nuts must be screwed onto the upper and lower ends of the hold-down hardware, which requires time and effort for construction, making it difficult to shorten the construction period.

[0005] The object of the present invention is to provide a connecting plate fitting and a method for connecting wooden prefabricated houses that can easily connect a base laid on a foundation rise to a first-story wooden prefabricated house erected on the base in a short time without requiring much labor and time, or that can easily connect a first-story wooden prefabricated house to a second-story wooden prefabricated house erected on the first-story wooden prefabricated house in a short time. [Means for solving the problem]

[0006] The first premise of the present invention for solving the above problem is a connecting plate fitting that connects a base laid on a foundation rise to a first-story wooden prefabricated house built on the base, or that connects a first-story wooden prefabricated house to a second-story wooden prefabricated house built on top of the first-story wooden prefabricated house.

[0007] The feature of the present invention in the first premise is that the connecting plate fittings are fixed from directly above the foundation to the cross-laminated floor boards of the wooden prefabricated house on the first floor and to the wooden wall panels made from two-by-four lumber of the wooden prefabricated house on the first floor, or from directly above the cross-laminated ceiling boards of the wooden prefabricated house on the first floor to the cross-laminated floor boards of the wooden prefabricated house on the second floor and to the wooden wall panels made from two-by-four lumber of the wooden prefabricated house on the second floor, and the connecting plate fittings are fixed to the foundation and the cross-laminated floor boards of the wooden prefabricated house on the first floor, or to the cross-laminated ceiling boards of the wooden prefabricated house on the first floor and to the cross-laminated floor boards of the wooden prefabricated house on the second floor. The pre-attached connecting plate fittings have a front surface of a predetermined area and a rear surface of a predetermined area, a lower area fixed from directly above the foundation to the orthogonal laminated floor board of the wooden prefabricated house on the first floor or the orthogonal laminated floor board of the wooden prefabricated house on the second floor, and an upper area fixed to the wooden wall panel of the wooden prefabricated house on the first floor or the wooden wall panel of the wooden prefabricated house on the second floor, and the post-attached connecting plate fittings have a front surface of a predetermined area and a rear surface of a predetermined area, a lower area fixed to the foundation or the orthogonal laminated ceiling board of the wooden prefabricated house on the first floor, and the rear surface overlaps the front of the lower area of ​​the pre-attached connecting plate fittings. and an upper area that is fixed to the orthogonal laminated floor board of the first floor wooden prefabricated house or the orthogonal laminated floor board of the second floor wooden prefabricated house in this state, and a plurality of screw holes arranged at predetermined intervals in the vertical and width directions are drilled in the lower area and the upper area of ​​the pre-attached connecting plate fittings, and are drilled in the lower area and the upper area of ​​the post-attached connecting plate fittings, and when the rear surface of the upper area of ​​the post-attached connecting plate fittings overlaps the front surface of the lower area of ​​the pre-attached connecting plate fittings, the plurality of screw holes drilled in the lower area of ​​the pre-attached connecting plate fittings and the post-attached connecting plate fittings A plurality of screw holes drilled in the upper area of ​​the base fitting overlap each other, and screws are driven into these screw holes to connect and fix the wooden wall panel of the first-floor wooden prefabricated house or the wooden wall panel of the second-floor wooden prefabricated house to the upper area of ​​the pre-attached connecting plate fitting, connect and fix the base or the orthogonal laminated ceiling panel of the first-floor wooden prefabricated house to the lower area of ​​the post-attached connecting plate fitting, and connect and fix the orthogonal laminated floor board of the first-floor wooden prefabricated house or the orthogonal laminated floor board of the second-floor wooden prefabricated house to the lower area of ​​the pre-attached connecting plate fitting and the upper area of ​​the post-attached connecting plate fitting.

[0008] In one example of the connecting plate fittings of the present invention, a plurality of pre-attached connecting plate fittings and a plurality of post-attached connecting plate fittings are lined up at a predetermined distance apart in the width direction or the front-to-rear direction, and the wooden wall panels of a first-floor wooden prefabricated house or the wooden wall panels of a second-floor wooden prefabricated house are connected and fixed to the upper areas of the plurality of pre-attached connecting plate fittings, the base or the orthogonal laminated ceiling board of the first-floor wooden prefabricated house is connected and fixed to the lower areas of the plurality of post-attached connecting plate fittings, and the orthogonal laminated floor boards of the first-floor wooden prefabricated house or the orthogonal laminated floor boards of the second-floor wooden prefabricated house are connected and fixed to the lower areas of the plurality of pre-attached connecting plate fittings and the upper areas of the plurality of post-attached connecting plate fittings.

[0009] In another example of the connecting plate fittings of the present invention, the screw hole peripheral portions surrounding the peripheries of the screw holes drilled in the upper area of ​​the pre-attached connecting plate fitting are recessed from the front toward the rear of the pre-attached connecting plate fitting, and the screw hole peripheral portions surrounding the peripheries of the screw holes drilled in the upper area and lower rear of the post-attached connecting plate fitting are recessed from the front toward the rear of the post-attached connecting plate fitting.

[0010] In another example of the connecting plate fittings of the present invention, the upper area of ​​the pre-attached connecting plate fittings is tapered from below to above, and the area of ​​the upper area of ​​the pre-attached connecting plate fittings gradually becomes smaller from below to above the upper area, and the upper area of ​​the retrofit connecting plate fittings is tapered from below to above, and the area of ​​the upper area of ​​the retrofit connecting plate fittings gradually becomes smaller from below to above the upper area.

[0011] In another example of a connecting plate fitting of the present invention, one side edge extending in the vertical direction of the upper area of ​​a pre-attached connecting plate fitting is inclined upward so as to gradually approach the other side edge extending in the vertical direction of the upper area as it moves from below to above the upper area, the other side edge extending in the vertical direction of the upper area of ​​a pre-attached connecting plate fitting is inclined upward so as to gradually approach one side edge extending in the vertical direction of the upper area as it moves from below to above the upper area, and the other side edge extending in the vertical direction of the upper area of ​​a post-attached connecting plate fitting is inclined upward so as to gradually approach one side edge extending in the vertical direction of the upper area as it moves from below to above the upper area.

[0012] In another example of the connecting plate fitting of the present invention, the lower area of ​​the retrofit connecting plate fitting is tapered from the top to the bottom, and the area of ​​the lower area of ​​the retrofit connecting plate fitting gradually becomes smaller from the top to the bottom of the lower area.

[0013] In another example of the connecting plate fitting of the present invention, one side edge extending in the vertical direction of the lower area of ​​the retrofit connecting plate fitting is inclined downward so as to gradually approach the other side edge extending in the vertical direction of the lower area as it moves from the top to the bottom of the lower area.

[0014] The second premise of the present invention for solving the above problem is a method for connecting wooden prefabricated houses, using connecting plate fittings to connect a base laid on a foundation rise to a first-story wooden prefabricated house built on the base, or to connect a first-story wooden prefabricated house to a second-story wooden prefabricated house built on top of the first-story wooden prefabricated house.

[0015] The feature of the present invention in the second premise is that the connecting plate fittings are fixed from directly above the foundation to the cross-laminated floor boards of the wooden prefabricated house on the first floor and to the wooden wall panels made from two-by-four lumber of the wooden prefabricated house on the first floor, or from directly above the cross-laminated ceiling boards of the wooden prefabricated house on the first floor to the cross-laminated floor boards of the wooden prefabricated house on the second floor and to the wooden wall panels made from two-by-four lumber of the wooden prefabricated house on the second floor, and the connecting plate fittings are fixed to the foundation and the cross-laminated floor boards of the wooden prefabricated house on the first floor, or to the cross-laminated ceiling boards of the wooden prefabricated house on the first floor and to the wooden wall panels made from two-by-four lumber of the wooden prefabricated house on the second floor. The pre-attached connecting plate fittings have a front surface of a predetermined area and a rear surface of a predetermined area, a lower area that is fixed from directly above the foundation to the orthogonal laminated floor boards of the wooden prefabricated house on the first floor or the orthogonal laminated floor boards of the wooden prefabricated house on the second floor, and an upper area that is fixed to the wooden wall panel of the wooden prefabricated house on the first floor or the wooden wall panel of the wooden prefabricated house on the second floor, and the pre-attached connecting plate fittings have a front surface of a predetermined area and a rear surface of a predetermined area, a lower area that is fixed to the foundation or the orthogonal laminated ceiling board of the wooden prefabricated house on the first floor, and a rear surface that is The pre-attached connecting plate fittings have an upper area that is fixed to the orthogonal laminated floor boards of the first floor wooden prefabricated house or the orthogonal laminated floor boards of the second floor wooden prefabricated house while overlapping the front of the lower area of ​​the pre-attached connecting plate fittings, and a plurality of screw holes arranged at predetermined intervals in the vertical and width directions are drilled in the lower and upper areas of the pre-attached connecting plate fittings and also drilled in the lower and upper areas of the post-attached connecting plate fittings, and a wooden prefabricated house connecting method involves driving screws into the screw holes in the upper area of ​​the pre-attached connecting plate fittings and connecting the upper area of ​​the pre-attached connecting plate fittings to the wooden prefabricated house on the first floor. a first connecting means for connecting and fixing to the wooden wall panel of the prefabricated house or the wooden wall panel of the second-floor wooden prefabricated house, by overlapping the rear surface of the upper area of ​​the post-attachment connecting plate fitting with the front surface of the lower area of ​​the pre-attachment connecting plate fitting, and then driving screws into the screw holes of the upper and lower areas of the post-attachment connecting plate fitting and the screw holes of the lower area of ​​the pre-attachment connecting plate fitting, thereby connecting and fixing the lower area of ​​the pre-attachment connecting plate fitting and the upper area of ​​the post-attachment connecting plate fitting to the orthogonal laminated floor board of the first-floor wooden prefabricated house or the orthogonal laminated floor board of the second-floor wooden prefabricated house;and a second connecting means for connecting and fixing the lower area of ​​the retrofit connecting plate metal fitting to the foundation or the orthogonal laminated ceiling panel of the first floor wooden prefabricated house.

[0016] In one example of the method for connecting wooden prefabricated houses of the present invention, a first connecting means connects and fixes the upper areas of a plurality of pre-attached connecting plate fittings to wooden wall panels of a first-floor prefabricated house or wooden wall panels of a second-floor prefabricated house, with the plurality of pre-attached connecting plate fittings spaced a predetermined distance apart in the width direction or front-to-back direction, and a second connecting means connects and fixes the lower areas of the plurality of pre-attached connecting plate fittings and the upper areas of the plurality of post-attached connecting plate fittings to the orthogonal laminated floor boards of the first-floor prefabricated house or the orthogonal laminated floor boards of the second-floor wooden prefabricated house, with the plurality of post-attached connecting plate fittings spaced a predetermined distance apart in the width direction or front-to-back direction, and connects and fixes the lower areas of the plurality of post-attached connecting plate fittings to the foundation or the orthogonal laminated ceiling boards of the first-floor wooden prefabricated house.

[0017] In another example of the wooden prefabricated house connecting method of the present invention, a first-floor wooden prefabricated house and a second-floor wooden prefabricated house are assembled at an assembly factory, then transported to a predetermined installation location by a predetermined transportation means and erected at the installation location, and using the first connecting means, the upper area of ​​the pre-attached connecting plate fittings is connected and fixed to the wooden wall panel of the first-floor wooden prefabricated house or the wooden wall panel of the second-floor wooden prefabricated house at the assembly factory.

[0018] Another example of the method for connecting wooden prefabricated houses of the present invention is a method for connecting wooden prefabricated houses that includes a first connecting means for connecting a first first-floor wooden prefabricated house to the foundation by connecting and fixing the lower area of ​​the post-attached connecting plate fittings to the foundation, and then placing a second first-floor wooden prefabricated house on the foundation near the first first-floor wooden prefabricated house and a first pulling means for pulling the second first-floor wooden prefabricated house toward the first first-floor wooden prefabricated house, and after pulling the second first-floor wooden prefabricated house toward the first first-floor wooden prefabricated house by the first pulling means, the second connecting means connects and fixes the lower area of ​​the pre-attached connecting plate fittings and the upper area of ​​the post-attached connecting plate fittings to the orthogonal laminated floor boards of the second first-floor wooden prefabricated house and connects and fixes the lower area of ​​the post-attached connecting plate fittings to the foundation.

[0019] Another example of the method for connecting wooden prefabricated houses of the present invention is a method for connecting wooden prefabricated houses, which includes connecting and fixing the lower area of ​​a post-attached connecting plate fitting to the orthogonal laminated ceiling panel of the first-floor wooden prefabricated house using two connecting means to connect a first second-floor wooden prefabricated house to the first first-floor wooden prefabricated house, then placing the second second-floor wooden prefabricated house on top of the second first-floor wooden prefabricated house near the first second-floor wooden prefabricated house, and using a second pulling means to pull the second second-floor wooden prefabricated house toward the first second-floor wooden prefabricated house, and after pulling the second second-floor wooden prefabricated house toward the first second-floor wooden prefabricated house using the second pulling means, the second connecting means connects and fixes the lower area of ​​the pre-attached connecting plate fitting and the upper area of ​​the post-attached connecting plate fitting to the orthogonal laminated floor panel of the second second-floor wooden prefabricated house, and connects and fixes the lower area of ​​the post-attached connecting plate fitting to the orthogonal laminated ceiling panel of the second first-floor wooden prefabricated house. [Effects of the Invention]

[0020] According to the connecting plate fittings of the present invention, screws are driven into the plurality of screw holes drilled in the upper and lower areas of the pre-attached connecting plate fittings and the plurality of screw holes drilled in the upper and lower areas of the post-attached connecting plate fittings, whereby the wooden wall panels of the first floor prefabricated wooden house or the wooden wall panels of the second floor prefabricated wooden house are connected and fixed to the upper areas of the pre-attached connecting plate fittings, the cross-laminated ceiling panels of the foundation or the first floor prefabricated wooden house and the lower areas of the post-attached connecting plate fittings are connected and fixed to the cross-laminated floor panels of the first floor prefabricated wooden house or the Because the orthogonal laminated floor panels of the second-story wooden prefabricated house are connected and fixed to the lower area of ​​the pre-attached connecting plate fittings and the upper area of ​​the post-attached connecting plate fittings, all that is required is to drive screws into the screw holes in the pre-attached connecting plate fittings and the post-attached connecting plate fittings, which does not require much time or effort, and it is possible to quickly and easily connect a base laid on the foundation rise to a first-story wooden prefabricated house erected on the base, or to quickly and easily connect a first-story wooden prefabricated house to a second-story wooden prefabricated house erected on top of the first-story wooden prefabricated house. The connecting plate fittings can significantly reduce the time required for connecting work, simplify the work involved in connecting work, and reduce the cost of connecting work, thereby shortening the construction period for buildings made from wooden prefabricated houses. The connecting plate fittings can be used to install the indoor and outdoor facing materials and interior and exterior materials of a wooden prefabricated house, for example in a factory, and then transport the installed wooden prefabricated house to the installation site.Then, pre-attached connecting plate fittings and post-attached connecting plate fittings can be used to connect the first-floor wooden prefabricated house to the second-floor wooden prefabricated house built on top of the first-floor wooden prefabricated house, thereby significantly shortening the construction period on site and allowing a two-story wooden prefabricated house to be constructed on site in a short period of time.

[0021] With a plurality of pre-attached connecting plate fittings and a plurality of post-attached connecting plate fittings lined up at predetermined intervals in the width direction or the front-to-rear direction, the wooden wall panels of the first floor wooden prefabricated house or the wooden wall panels of the second floor wooden prefabricated house are connected and fixed to the upper areas of the plurality of pre-attached connecting plate fittings, the base or the orthogonal laminated ceiling boards of the first floor wooden prefabricated house and the lower areas of the plurality of post-attached connecting plate fittings are connected and fixed, and the orthogonal laminated floor boards of the first floor wooden prefabricated house or the orthogonal laminated floor boards of the second floor wooden prefabricated house and the plurality of pre-attached connecting plate fittings are connected and fixed. By using a plurality of pre-attached connecting plate fittings and a plurality of post-attached connecting plate fittings arranged at a predetermined distance in the width direction or front-to-back direction, connecting plate fittings that connect and fix the lower area of ​​the plate fittings to the upper areas of multiple post-attached connecting plate fittings, it is possible to securely connect a base laid on the foundation rise to a first-story wooden prefabricated house built on the base, or to securely connect a first-story wooden prefabricated house to a second-story wooden prefabricated house built on top of the first-story wooden prefabricated house. Even if an earthquake or other event causes a large relative displacement (horizontal displacement, rotational displacement, compression displacement) between the foundation and the first-floor wooden prefabricated house, or between the first-floor wooden prefabricated house and the second-floor wooden prefabricated house, and external forces (bending moment, shear force) due to the relative displacement are transmitted to the first-floor wooden prefabricated house or the second-floor wooden prefabricated house, the connection between the foundation and the first-floor wooden prefabricated house, or the connection between the first-floor wooden prefabricated house and the second-floor wooden prefabricated house, which are connected and fixed by multiple pre-attached connecting plate fittings and multiple post-attached connecting plate fittings, will not be released by the external force, and the connection between the foundation and the first-floor wooden prefabricated house and the first-floor wooden prefabricated house and the second-floor wooden prefabricated house can be reliably maintained.

[0022] In the case of connecting plate fittings in which the screw hole peripheries surrounding the peripheries of the screw holes drilled in the upper area of ​​the pre-attached connecting plate fittings are recessed from the front to the rear of the pre-attached connecting plate fittings, and the screw hole peripheries surrounding the peripheries of the screw holes drilled in the upper area and lower rear of the post-attached connecting plate fittings are recessed from the front to the rear of the post-attached connecting plate fittings, the screw hole peripheries of the pre-attached connecting plate fittings and the post-attached connecting plate fittings that are recessed from the front to the rear serve as ribs of the connecting plate fittings. The strength of these connecting plate fittings is improved by the edges of the screw holes that are recessed from the front to the rear, so even if external force is applied to the pre-attached connecting plate fittings and the post-attached connecting plate fittings, the connecting plate fittings will not be deformed by bending, twisting, or the like, and this prevents the connection between the base laid on the foundation rise and the first-floor wooden prefabricated house from coming loose or becoming insufficient due to deformation of the connecting plate fittings, and prevents the connection between the first-floor wooden prefabricated house and the second-floor wooden prefabricated house from coming loose or becoming insufficient. Even if an earthquake or other event causes a large relative displacement (horizontal displacement, rotational displacement, compression displacement) between the foundation and the first-floor wooden prefabricated house, or between the first-floor wooden prefabricated house and the second-floor wooden prefabricated house, and external forces (bending moment, shear force) due to the relative displacement are transmitted to the first-floor wooden prefabricated house or the second-floor wooden prefabricated house, the pre-attached connecting plate fittings and the post-attached connecting plate fittings will not be deformed by the external force, and the connection between the foundation and the first-floor wooden prefabricated house and the connection between the first-floor wooden prefabricated house and the second-floor wooden prefabricated house can be reliably maintained.

[0023] In connecting plate fittings in which the upper area of ​​a pre-attached connecting plate fitting is tapered from below to above, the area of ​​the upper area of ​​the pre-attached connecting plate fitting is gradually smaller from below to above the upper area, and the upper area of ​​an after-attached connecting plate fitting is tapered from below to above, the area of ​​the upper area of ​​the after-attached connecting plate fitting is gradually smaller from below to above the upper area, even if an external force (bending moment, shear force) acts on the pre-attached connecting plate fittings or after-attached connecting plate fittings, the pre-attached connecting plate fittings and after-attached connecting plate fittings, whose upper area is tapered from below to above, can withstand the external force, and the pre-attached connecting plate fittings and after-attached connecting plate fittings will not be deformed by the external force, and the connection between the foundation and the first-floor wooden prefabricated house and the connection between the first-floor wooden prefabricated house and the second-floor wooden prefabricated house can be reliably maintained.

[0024] A connecting plate fitting in which one side edge extending in the vertical direction of the upper area of ​​a pre-attached connecting plate fitting is inclined upward so as to gradually approach the other side edge extending in the vertical direction of the upper area as it goes from below to above the upper area, and the other side edge extending in the vertical direction of the upper area of ​​a pre-attached connecting plate fitting is inclined upward so as to gradually approach one side edge extending in the vertical direction of the upper area as it goes from below to above the upper area, and the other side edge extending in the vertical direction of the upper area of ​​a post-attached connecting plate fitting is inclined upward so as to gradually approach one side edge extending in the vertical direction of the upper area as it goes from below to above the upper area. As the upper area tapers from bottom to top and the upper area of ​​the add-on connecting plate fittings tapers from bottom to top, even if an external force (bending moment, shear force) acts on the pre-attached connecting plate fittings or add-on connecting plate fittings, the pre-attached connecting plate fittings and add-on connecting plate fittings, which taper from bottom to top, can withstand the external force, and the pre-attached connecting plate fittings and add-on connecting plate fittings will not be deformed by the external force, so the connection between the foundation and the first-floor wooden prefabricated house and the connection between the first-floor wooden prefabricated house and the second-floor wooden prefabricated house can be reliably maintained.

[0025] The lower area of ​​the retrofit connecting plate fitting is tapered from top to bottom, and the area of ​​the lower area of ​​the retrofit connecting plate fitting gradually becomes smaller from top to bottom in the lower area.Even if an external force (bending moment, shear force) acts on the retrofit connecting plate fitting, the retrofit connecting plate fitting, whose upper area is tapered from bottom to top and whose lower area is tapered from top to bottom, can withstand the external force, and the retrofit connecting plate fitting will not be deformed by the external force, and the connection between the foundation and the first-floor wooden prefabricated house and the connection between the first-floor wooden prefabricated house and the second-floor wooden prefabricated house can be reliably maintained.

[0026] A connecting plate fitting in which one side edge extending in the vertical direction of the lower area of ​​the retrofit connecting plate fitting slopes downwardly so as to gradually approach the other side edge extending in the vertical direction of the lower area as it moves from the top to the bottom of the lower area, has an upper area that tapers as it moves from the bottom to the top of the connecting plate fitting, and also has a lower area that tapers as it moves from the top to the bottom of the connecting plate fitting.As a result, even if an external force (bending moment, shear force) acts on the retrofit connecting plate fitting, the retrofit connecting plate fitting, whose upper area is tapered as it moves from the bottom to the top and whose lower area is tapered as it moves from the top to the bottom, can withstand the external force and will not deform the retrofit connecting plate fitting, thereby reliably maintaining the connection between the foundation and the first-floor wooden prefabricated house and the connection between the first-floor wooden prefabricated house and the second-floor wooden prefabricated house.

[0027] According to the method for connecting wooden prefabricated houses of the present invention, screws are driven into the screw holes in the upper area of ​​the pre-attached connecting plate fittings, and the upper area of ​​the pre-attached connecting plate fittings is connected and fixed to the wooden wall panel of the first floor wooden prefabricated house or the wooden wall panel of the second floor wooden prefabricated house. Next, the rear surface of the upper area of ​​the post-attached connecting plate fittings is overlapped with the front surface of the lower area of ​​the pre-attached connecting plate fittings, and then screws are driven into the screw holes in the upper and lower areas of the post-attached connecting plate fittings and the screw holes in the lower area of ​​the pre-attached connecting plate fittings, and the lower area of ​​the pre-attached connecting plate fittings and the upper area of ​​the post-attached connecting plate fittings are connected to the cross-laminated floor boards of the first floor wooden prefabricated house or the cross-laminated floor boards of the second floor wooden prefabricated house. and connects and fixes the lower area of ​​the post-attached connecting plate fittings to the base or the orthogonal laminated ceiling panel of the first-floor wooden prefabricated house, so all that is required is to drive screws into the screw holes in the upper area of ​​the pre-attached connecting plate fittings and into the screw holes in the upper and lower areas of the overlapping post-attached connecting plate fittings and the screw holes in the lower area of ​​the pre-attached connecting plate fittings, which does not require much time or effort and makes it possible to quickly and easily connect a base laid on the rising foundation to a first-floor wooden prefabricated house erected on the base, or to quickly and easily connect a first-floor wooden prefabricated house to a second-floor wooden prefabricated house erected on the first-floor wooden prefabricated house. The wooden prefabricated house connecting method can significantly reduce the time required for connecting work, simplify the work required for connecting work, reduce the cost of connecting work, and shorten the construction period for buildings made from wooden prefabricated houses. The method for connecting wooden prefabricated houses involves installing the indoor and outdoor facings and interior and exterior materials of a wooden prefabricated house, for example in a factory, transporting the installed wooden prefabricated house to the installation site, and then using pre-attached connecting plate fittings and post-attached connecting plate fittings to connect the first-floor wooden prefabricated house to the second-floor wooden prefabricated house built on top of the first-floor wooden prefabricated house.This significantly reduces the construction period on site, and allows a two-story wooden prefabricated house to be constructed on site in a short period of time.

[0028] With the multiple pre-attached connecting plate fittings spaced apart by a predetermined distance in the width direction or the front-to-back direction, the upper areas of the multiple pre-attached connecting plate fittings are connected and fixed to the wooden wall panel of the first floor wooden prefabricated house or the wooden wall panel of the second floor wooden prefabricated house, and with the multiple post-attached connecting plate fittings spaced apart by a predetermined distance in the width direction or the front-to-back direction, the lower areas of the multiple pre-attached connecting plate fittings and the upper areas of the multiple post-attached connecting plate fittings are connected and fixed to the orthogonal laminated floor board of the first floor wooden prefabricated house or the orthogonal laminated floor board of the second floor wooden prefabricated house, A method for connecting wooden prefabricated houses, in which the lower areas of multiple post-installation connecting plate fittings are connected and fixed to the base or the orthogonal laminated ceiling panels of a first-floor wooden prefabricated house, uses multiple pre-installation connecting plate fittings and multiple post-installation connecting plate fittings arranged at a predetermined distance in the width direction or front-to-back direction, thereby making it possible to reliably connect a base laid on the foundation rise to a first-floor wooden prefabricated house built on the base, or to reliably connect a first-floor wooden prefabricated house to a second-floor wooden prefabricated house built on top of the first-floor wooden prefabricated house. In the wooden prefabricated house connection method, even if an earthquake or other event causes a large relative displacement (horizontal displacement, rotational displacement, compression displacement) between the foundation and the first-floor wooden prefabricated house or between the first-floor wooden prefabricated house and the second-floor wooden prefabricated house, and external forces (bending moment, shear force) due to the relative displacement are transmitted to the first-floor wooden prefabricated house or the second-floor wooden prefabricated house, the connection between the foundation and the first-floor wooden prefabricated house or the connection between the first-floor wooden prefabricated house and the second-floor wooden prefabricated house, which are connected and fixed using multiple pre-attached connecting plate fittings and multiple post-attached connecting plate fittings, will not be released by the external force, and the connection between the foundation and the first-floor wooden prefabricated house and the connection between the first-floor wooden prefabricated house and the second-floor wooden prefabricated house can be reliably maintained.

[0029] A first-floor wooden prefabricated house and a second-floor wooden prefabricated house are assembled in an assembly factory, then transported to a predetermined installation location by a predetermined means of transportation and erected at the installation location, and the upper areas of the pre-attached connecting plate fittings are connected and fixed to the wooden wall panels of the first-floor wooden prefabricated house or the wooden wall panels of the second-floor wooden prefabricated house at the assembly factory.The wooden prefabricated house connecting method involves transporting the first-floor wooden prefabricated house and the second-floor wooden prefabricated house, with the upper areas of the pre-attached connecting plate fittings connected and fixed to the wooden wall panels at the assembly factory, to the predetermined installation location, overlapping the rear surface of the upper area of ​​the post-attached connecting plate fittings with the front surface of the lower area of ​​the pre-attached connecting plate fittings, and then connecting the bead holes of the upper and lower areas of the post-attached connecting plate fittings to the pre-attached connecting plate fittings. Screws are driven into the screw holes in the lower area of ​​the pre-attached connecting plate fittings and the screw holes in the lower area of ​​the fittings, connecting and fixing the lower area of ​​the pre-attached connecting plate fittings and the upper area of ​​the post-attached connecting plate fittings to the orthogonal laminated floor boards of the first floor wooden prefabricated house or the orthogonal laminated floor boards of the second floor wooden prefabricated house, and connecting and fixing the lower area of ​​the post-attached connecting plate fittings to the base or the orthogonal laminated ceiling board of the first floor wooden prefabricated house.This only requires driving screws into the screw holes in the upper and lower areas of the post-attached connecting plate fittings and the screw holes in the lower area of ​​the pre-attached connecting plate fittings, and does not require much time or effort, making it possible to quickly and easily connect a base laid on the rising foundation to a first floor wooden prefabricated house, or to quickly and easily connect a first floor wooden prefabricated house to a second floor wooden prefabricated house. The method for connecting wooden prefabricated houses can greatly reduce the time required for the connection work, simplify the labor required for the connection work, reduce the cost required for the connection work, and shorten the construction period for building a building made of wooden prefabricated houses.

[0030] After connecting and fixing the lower area of ​​the post-installation connecting plate fittings to the foundation to connect the first wooden prefabricated house on the first floor to the foundation, the second wooden prefabricated house on the first floor is placed on the foundation near the first wooden prefabricated house on the first floor, the second wooden prefabricated house on the first floor is pulled toward the first wooden prefabricated house on the first floor, and the second wooden prefabricated house on the first floor is pulled toward the first wooden prefabricated house on the first floor, and then the lower area of ​​the pre-installation connecting plate fittings and the upper area of ​​the post-installation connecting plate fittings are connected and fixed to the orthogonal laminated floor boards of the second wooden prefabricated house on the first floor, and the lower area of ​​the post-installation connecting plate fittings to the foundation, while pulling the second first-floor wooden prefabricated house toward the first first-floor wooden prefabricated house, connects and fixes the lower area of ​​the pre-attached connecting plate fittings and the upper area of ​​the post-attached connecting plate fittings to the orthogonal laminated floor boards of the first-floor wooden prefabricated house or the orthogonal laminated floor boards of the second-floor wooden prefabricated house, and connects and fixes the lower area of ​​the post-attached connecting plate fittings to the foundation or the orthogonal laminated ceiling board of the first-floor wooden prefabricated house, thereby making it possible to create a variety of buildings by combining multiple first-floor wooden prefabricated houses and to create buildings with different floor plans and different numbers of rooms. The wooden prefabricated house connecting method makes it possible to create a variety of buildings with different floor plans and different numbers of rooms in a short construction period and at low cost.

[0031] The lower area of ​​the post-installation connecting plate fittings is connected and fixed to the orthogonal laminated ceiling board of the first floor wooden prefabricated house to connect the first wooden prefabricated house on the second floor to the first wooden prefabricated house on the first floor, the second wooden prefabricated house on the second floor is placed on the second wooden prefabricated house on the first floor near the first wooden prefabricated house on the second floor, the second wooden prefabricated house on the second floor is pulled towards the first wooden prefabricated house on the second floor, and the second wooden prefabricated house on the second floor is pulled towards the first wooden prefabricated house on the second floor, and then the lower area of ​​the pre-installation connecting plate fittings and the upper area of ​​the post-installation connecting plate fittings are connected and fixed to the orthogonal laminated floor board of the second wooden prefabricated house on the second floor, and The wooden prefabricated house connecting method for connecting and fixing the lower area to the orthogonal laminated floor board of the second first-floor wooden prefabricated house involves pulling the second second-floor wooden prefabricated house toward the first second-floor wooden prefabricated house while connecting and fixing the lower area of ​​the pre-attached connecting plate fittings and the upper area of ​​the post-attached connecting plate fittings to the orthogonal laminated floor board of the second second-floor wooden prefabricated house, and connecting and fixing the lower area of ​​the post-attached connecting plate fittings to the orthogonal laminated ceiling board of the second first-floor wooden prefabricated house, thereby making it possible to create a variety of two-story buildings by combining multiple first-floor wooden prefabricated houses and multiple second-floor wooden prefabricated houses, and to create two-story buildings with different floor plans and different numbers of rooms. The wooden prefabricated house connecting method makes it possible to build a variety of two-story buildings with different floor plans and different numbers of rooms in a short construction period and at low cost. [Brief explanation of the drawings]

[0032] [Figure 1] FIG. 10 is a front view of a pre-attached connecting plate fitting shown as an example of a connecting plate fitting. [Figure 2] Cross-sectional view taken along line AA in Figure 1. [Figure 3] FIG. 10 is a front view of a retrofit connecting plate fitting shown as an example of a connecting plate fitting. [Figure 4] BB line cross-sectional view of FIG. 3. [Figure 5] FIG. 4 is a cross-sectional view of a screw hole peripheral portion surrounding the periphery of the screw hole. [Figure 6] FIG. 10 is a front view of a retrofit connecting plate fitting shown as another example of the connecting plate fitting. [Figure 7] 7 is a cross-sectional view taken along line CC in FIG. 6. [Figure 8] FIG. 1 is a perspective view showing an example of a wooden prefabricated house that uses connecting plate fittings. [Figure 9] 9 is a perspective view of the wooden prefabricated house of FIG. 8 as seen from the rear side. [Figure 10] Front view of the wooden framed house in Figure 8. [Figure 11] FIG. 10 is a perspective view showing another example of a wooden prefabricated house using connecting plate fittings. [Figure 12] 12 is a perspective view of the wooden prefabricated house of FIG. 11 as seen from the rear side. [Figure 13] Front view of the wooden framed house in Figure 11. [Figure 14] FIG. 2 is a partially enlarged view illustrating an example of a first connecting means in a method for connecting wooden prefabricated houses. [Figure 15] FIG. 10 is a partially enlarged view illustrating an example of a second connecting means in the method for connecting wooden prefabricated houses. [Figure 16] FIG. 10 is a side view of the wooden prefabricated house, illustrating an example of a first pulling means for pulling the wooden prefabricated house. [Figure 17] 17 is a side view of the wooden prefabricated house illustrating the first pulling means, continuing from FIG. 16. FIG. [Figure 18] FIG. 10 is a partially enlarged view illustrating another example of the second connecting means in the method for connecting wooden prefabricated houses. [Figure 19] FIG. 10 is a side view of the wooden prefabricated house, illustrating an example of a second pulling means for pulling the wooden prefabricated house. [Figure 20] FIG. 20 is a side view of the wooden prefabricated house illustrating the second pulling means, continuing from FIG. 19. DETAILED DESCRIPTION OF THE INVENTION

[0033] The connecting plate fittings and wooden prefabricated house connecting method according to the present invention will be described in detail below with reference to the accompanying drawings. Fig. 1 is a front view of a pre-attached connecting plate fitting 10A shown as an example of the connecting plate fitting 10, and Fig. 2 is a cross-sectional view taken along line AA in Fig. 1. Fig. 3 is a front view of a post-attached connecting plate fitting 10B shown as an example of the connecting plate fitting 10, and Fig. 4 is a cross-sectional view taken along line BB in Fig. 3. Fig. 5 is a cross-sectional view of screw hole peripheral portions 25, 30, 39, and 44 that surround the peripheries of the screw holes 24a-24d, 29a-29e, 38a-38c, and 43a-43c. In Figs. 1 and 3, the vertical direction is indicated by arrow X, and the width direction is indicated by arrow Y.

[0034] The connecting plate fittings 10 connect a base 11 laid on a foundation rise to a first-story wooden prefabricated house 12 placed (erected) on the base 11. The connecting plate fittings 10 also connect the first-story wooden prefabricated house 12 to a second-story wooden prefabricated house 13 placed (erected) on the first-story wooden prefabricated house 12. The connecting plate fittings 10 are made up of pre-attached connecting plate fittings 10A and post-attached connecting plate fittings 10B.

[0035] The pre-attached connecting plate fitting 10A is fixed from directly above the foundation 11 to the orthogonal laminated floor boards 14 of the first-floor wooden prefabricated house 12 and to the wooden wall panels 15 of the first-floor wooden prefabricated house 12. The pre-attached connecting plate fitting 10A is also fixed from directly above the orthogonal laminated ceiling boards 16 of the first-floor wooden prefabricated house 12 to the orthogonal laminated floor boards 14 of the second-floor wooden prefabricated house 13 and to the wooden wall panels 15 of the second-floor wooden prefabricated house 13. The pre-attached connecting plate fitting 10A is made of steel such as stainless steel, cast steel, or an alloy, and is formed into a thin plate. The pre-attached connecting plate fitting 10A has a front surface 17 of a specified area, a rear surface 18 of a specified area, a lower area 19 that is approximately the lower half of the pre-attached connecting plate fitting 10A, and an upper area 20 that is approximately the upper half of the pre-attached connecting plate fitting 10A. The thickness dimension between the front and rear surfaces 17, 18 of the pre-attached connecting plate fitting 10A is 1.5 to 2.0 mm, and the vertical dimension of the pre-attached connecting plate fitting 10A is 300 to 320 mm.

[0036] The lower area 19 of the pre-attached connecting plate fitting 10A has both side edges 21, 22 that extend straight in the vertical direction and a bottom edge 23 that extends straight in the width direction, and is shaped like a vertically long rectangle. The lower area 19 of the pre-attached connecting plate fitting 10A is fixed from directly above the foundation 11 to the orthogonal laminated floor boards 14 of the first-floor wooden prefabricated house 12. The lower area 19 of the pre-attached connecting plate fitting 10A is also fixed from directly above the orthogonal laminated ceiling boards 16 of the first-floor wooden prefabricated house 12 to the orthogonal laminated floor boards 14 of the second-floor wooden prefabricated house 13. The vertical dimension of the lower area 19 of the pre-attached connecting plate fitting 10A is in the range of 137 to 147 mm. The horizontal dimension of the lower area 19 of the pre-attached connecting plate fitting 10A is in the range of 84 to 90 mm.

[0037] Two first-row screw holes 24a are drilled (formed) in the upper part of the lower area 19 of the pre-attached connecting plate fitting 10A, aligned in the width direction. In the first-row screw holes 24a, one screw hole 24a is formed between a vertical center line T that bisects the horizontal dimensions of the lower area 19 and upper area 20 of the pre-attached connecting plate fitting 10A and one side edge 21, and another screw hole 24a is formed between the vertical center line T and the other side edge 22. A screw hole periphery 25 surrounding the first-row screw holes 24a is recessed from the front surface 17 toward the rear surface 18 of the pre-attached connecting plate fitting 10A. The first-row screw holes 24a are embossed holes, and the recess dimension of the screw hole periphery 25 is 1.3 to 1.7 mm.

[0038] In the first row of screw holes 24a, the widthwise distance between the centers of screw holes 24a formed between the vertical center line T and one side edge 21 and the centers of screw holes 24a formed between the vertical center line T and the other side edge 22 is in the range of 34 to 36 mm, and the widthwise distance between the centers of screw holes 24a formed between the vertical center line T and one side edge 21 and one side edge 21 is in the range of 25 to 27 mm. The widthwise distance between the centers of screw holes 24a formed between the vertical center line T and the other side edge 22 and the other side edge 22 is in the range of 25 to 27 mm.

[0039] Nine second to fourth rows of screw holes 24b to 24d are drilled (formed) in the center and bottom of the lower area 19 of the pre-attached connecting plate fitting 10A, aligned linearly in the width direction and also aligned linearly in the vertical direction. The second row of screw holes 24b are three screw holes 24b drilled in the center of the lower area 19 aligned linearly in the width direction, with one screw hole 24b formed on the vertical center line T, one screw hole 24b formed between the vertical center line T and one side edge 21, and one screw hole 24b formed between the vertical center line T and the other side edge 22.

[0040] For the second row of screw holes 24b, the widthwise distance between the centers of the screw holes 24b formed between the vertical centerline T and one side edge 21 and the vertical centerline T is in the range of 17 to 18 mm, and the widthwise distance between the centers of the screw holes 24b formed between the vertical centerline T and the other side edge 22 and the vertical centerline T is in the range of 17 to 18 mm. The widthwise distance between the centers of the screw holes 24b formed between the vertical centerline T and one side edge 21 and one side edge 21 is in the range of 25 to 27 mm, and the widthwise distance between the centers of the screw holes 24b formed between the vertical centerline T and the other side edge 22 and the other side edge 22 is in the range of 25 to 27 mm. The vertical distance between the centers of the first row of screw holes 24a and the second row of screw holes 24b is in the range of 39 to 41 mm.

[0041] The third row of screw holes 24c is made up of three screw holes 24c drilled in the center of the lower area 19 and aligned in a straight line in the width direction, with one screw hole 24c formed on the vertical center line T, one screw hole 24c formed between the vertical center line T and one side edge 21, and one screw hole 24c formed between the vertical center line T and the other side edge 22. In the third row of screw holes 24c, the widthwise distance between the center of the screw hole 24c formed on the vertical center line T and the center of the screw hole 24c formed between the vertical center line T and one side edge 21 is in the range of 25 to 27 mm, and the widthwise distance between the center of the screw hole 24c formed on the vertical center line T and the center of the screw hole 24c formed between the vertical center line T and the other side edge 22 is also in the range of 25 to 27 mm. In third row screw holes 24c, the widthwise distance between the centers of screw holes 24c formed between vertical centerline T and one side edge 21 and one side edge 21 is in the range of 17 to 19 mm, and the widthwise distance between the centers of screw holes 24c formed between vertical centerline T and the other side edge 22 and the other side edge 22 is in the range of 17 to 19 mm. The vertical distance between the centers of second row screw holes 24b and third row screw holes 24c is in the range of 25 to 26 mm.

[0042] The fourth row of screw holes 24d is three screw holes 14d drilled in the lower part of the lower area 19 and aligned in a straight line in the width direction, with one screw hole 24d formed on the vertical center line T, one screw hole 24d formed between the vertical center line T and one side edge 21, and one screw hole 24d formed between the vertical center line T and the other side edge 22. In the fourth row of screw holes 24d, the widthwise distance between the center of the screw hole 24d formed on the vertical center line T and the center of the screw hole 24d formed between the vertical center line T and one side edge 21 is in the range of 25 to 27 mm, and the widthwise distance between the center of the screw hole 24d formed on the vertical center line T and the center of the screw hole 24d formed between the vertical center line T and the other side edge 22 is also in the range of 25 to 27 mm. In fourth row screw holes 24d, the widthwise distance between the center of screw holes 24d formed between vertical centerline T and one side edge 21 and one side edge 21 is in the range of 17 to 19 mm, and the widthwise distance between the center of screw holes 23d formed between vertical centerline T and the other side edge 22 and the other side edge 22 is in the range of 17 to 19 mm. The vertical distance between the center of third row screw holes 24c and the center of fourth row screw holes 24d is in the range of 25 to 26 mm, and the vertical distance between the center of fourth row screw holes 24d and the lower edge of lower area 19, 23 is in the range of 20 to 21 mm. First to fourth rows of screw holes 24a to 24d are screw holes 45 for screwing in long screws, but they may also be blind holes 45 for inserting long screws.

[0043] The upper area 20 of the pre-attached connecting plate fitting 10A has side edges 26, 27 extending vertically and an upper edge 28 extending widthwise, and is tapered from bottom to top. The area of ​​the upper area 20 of the pre-attached connecting plate fitting 10A gradually decreases from bottom to top. The upper area 20 of the pre-attached connecting plate fitting 10A is fixed to the wooden wall panel 15 of the first-story wooden prefabricated house 12. The upper area 20 of the pre-attached connecting plate fitting 10A is fixed to the wooden wall panel 15 of the second-story wooden prefabricated house 13. The vertical dimension of the upper area 20 of the pre-attached connecting plate fitting 10A is in the range of 163 to 173 mm. The horizontal dimension of the upper edge 28 of the upper area 20 of the pre-attached connecting plate fitting 10A is in the range of 40 to 46 mm. The horizontal dimension of the lower part of the upper area 20 of the pre-attached connecting plate fitting 10A is in the range of 84 to 90 mm.

[0044] One side edge 26 extending in the vertical direction of the upper area 20 of the pre-attached connecting plate fitting 10A is inclined upward so as to gradually approach the other side edge 27 extending in the vertical direction of the upper area 20 as it moves from the bottom to the top of the upper area 20. The other side edge 27 extending in the vertical direction of the upper area 20 of the pre-attached connecting plate fitting 10A is inclined upward so as to gradually approach the one side edge 26 extending in the vertical direction of the upper area 20 as it moves from the bottom to the top of the upper area 20. The inclination angle of both side edges 26, 27 of the upper area 20 of the pre-attached connecting plate fitting 10A with respect to the vertical center line T is in the range of 7.9° to 8.1°.

[0045] Eight first to fourth rows of screw holes 29a to 29d are drilled (formed) in the upper and central portion of the upper area 20 of the pre-attached connecting plate fitting 10A, aligned in both the width direction and the length direction. The first row of screw holes 29a are two screw holes 29a drilled in the upper portion of the upper area 20 aligned in the width direction, with one screw hole 29a formed between the lengthwise center line T and one side edge 26, and one screw hole 29a formed between the lengthwise center line T and the other side edge 27. The vertical distance between the top edge 28 of the upper area 20 and the center of the first row of screw holes 29a is in the range of 15 to 16 mm. The second row of screw holes 29b are two screw holes 29b lined up in the width direction drilled in the upper part of the upper area 20, with one screw hole 29b formed between the vertical center line T and one side edge 26, and one screw hole 29b formed between the vertical center line T and the other side edge 27. The vertical distance between the centers of the first row of screw holes 29a and the second row of screw holes 29b is in the range of 24.9 to 25.9 mm.

[0046] The third row of screw holes 29c are two screw holes 29c drilled in the center of the upper area 20 and aligned in the width direction, with one screw hole 29c formed between the vertical center line T and one side edge 26 and one screw hole 29c formed between the vertical center line T and the other side edge 27. The vertical distance between the centers of the second row of screw holes 29b and the third row of screw holes 29c is in the range of 24.9 to 25.9 mm. The fourth row of screw holes 29d are two screw holes 29d drilled in the center of the upper area 20 and aligned in the width direction, with one screw hole 29d formed between the vertical center line T and one side edge 26 and one screw hole 29d formed between the vertical center line T and the other side edge 27. The vertical distance between the centers of the third row of screw holes 29c and the fourth row of screw holes 29d is in the range of 24.9 to 25.9 mm.

[0047] Two fifth-row screw holes 29e are drilled (formed) in the lower portion of the upper area 20 of the pre-attached connecting plate fitting 10A, aligned in the width direction. In the fifth-row screw holes 29e, one screw hole 29e is formed between the vertical center line T and one side edge 26, and one screw hole 29e is formed between the vertical center line T and the other side edge 27. The vertical distance between the center of the fourth-row screw holes 29d and the center of the fifth-row screw holes 29e is in the range of 63.2 to 64.2 mm. The vertical distance between the center of the fifth-row screw holes 29e in the upper area 20 and the center of the first-row screw holes 24a in the lower area 19 is in the range of 38 to 39 mm. A screw hole periphery 30 surrounding the first to fifth-row screw holes 29a to 29e is recessed from the front surface 17 toward the rear surface 18 of the pre-attached connecting plate fitting 10A. The first to fifth rows of screw holes 29a to 29e are embossed holes, and the recess dimensions of screw hole peripheries 30 are 1.3 to 1.7 mm. The first to fifth rows of screw holes 29a to 29e are screw holes 45 for screwing in long screws, but may also be blind holes 45 for inserting long screws.

[0048] The after-installation connecting plate fitting 10B in FIG. 3 (including the after-installation connecting plate fitting 10B in FIG. 6) is fixed to the foundation 11 and the orthogonal laminated floor slabs 14 of the first-floor wooden prefabricated house 12. The after-installation connecting plate fitting 10B in FIG. 3 (including the after-installation connecting plate fitting 10B in FIG. 6) is fixed to the orthogonal laminated ceiling board 16 of the first-floor wooden prefabricated house 12 and the orthogonal laminated floor slabs 14 of the second-floor wooden prefabricated house 13. The after-installation connecting plate fitting 10B is made of steel such as stainless steel, or cast steel or an alloy, and is formed into a thin plate. The after-installation connecting plate fitting 10B has a front surface 31 of a specified area, a rear surface 32 of a specified area, a lower area 33 that is approximately the lower half of the after-installation connecting plate fitting 10B, and an upper area 34 that is approximately the upper half of the after-installation connecting plate fitting 10B. The thickness dimension between the front and rear faces 31, 32 of the post-installation connecting plate fitting 10B is 1.5 to 2.0 mm, and the vertical dimension of the post-installation connecting plate fitting 10B is 178 to 188 mm.

[0049] The lower area 33 of the retrofit connecting plate fitting 10B has both side edges 35, 36 extending vertically and a lower edge 37 extending linearly in the width direction, and is tapered downward. The area of ​​the lower area 33 of the retrofit connecting plate fitting 10B gradually decreases from the top to the bottom of the lower area 33. The lower area 33 of the retrofit connecting plate fitting 10B is fixed to the foundation 11. The lower area 33 of the retrofit connecting plate fitting 10B is also fixed to the orthogonal laminated ceiling panel 16 of the first-floor wooden prefabricated house 12. The vertical dimension of the lower area 33 of the retrofit connecting plate fitting 10B is in the range of 89 to 94 mm. The maximum horizontal dimension of the lower area 33 of the retrofit connecting plate fitting 10B is in the range of 102 to 112 mm. The horizontal dimension of the lower edge 37 of the lower area 33 of the connecting plate fitting 10B is in the range of 82.3 to 87.3 mm.

[0050] One side edge 35 extending in the vertical direction of the lower area 33 of the retrofit connecting plate fitting 10B is inclined downward so as to gradually approach the other side edge 34 extending in the vertical direction of the lower area 33 as it moves from the top to the bottom of the lower area 33. The inclination angle of the one side edge 35 of the lower area 33 of the retrofit connecting plate fitting 10B with respect to a vertical center line T that divides the retrofit connecting plate fitting 10B in half in the width direction and extends in the vertical direction is in the range of 13° to 14°.

[0051] Seven first to third rows of screw holes 38a to 38c are drilled (formed) in the lower area 33 of the retrofit connecting plate fitting 10B and aligned at an angle in the width direction. The first row of screw holes 38a are two screw holes 38a drilled in the upper part of the lower area 33 and aligned at an angle in the width direction, with one screw hole 38a formed between the vertical center line T and one side edge 35, and one screw hole 38a formed between the vertical center line T and the other side edge 36. The screw hole 38a between the vertical center line T and the other side edge 36 is positioned vertically above the screw hole 38a located between the vertical center line T and one side edge 35 of the two first row of screw holes 38a. In the first row of screw holes 38a, the widthwise distance between the center of the screw holes 38a formed between the vertical center line T and one side edge 35 and the center of the screw holes 38a formed between the vertical center line T and the other side edge 36 is in the range of 30 to 32 mm, and the widthwise distance between the center of the screw holes 38a formed between the vertical center line T and the other side edge 36 and the other side edge 36 is in the range of 40 to 42 mm.

[0052] The second row screw holes 38b are three screw holes 38b drilled in the upper, central, and lower parts of the lower area 33 and arranged diagonally in the width direction, with one screw hole 38b formed between the vertical center line T and one side edge 35 and two screw holes 38b formed between the vertical center line T and the other side edge 36. Of the three second row screw holes 38b, the screw hole 38b between the vertical center line T and the other side edge 36 is located vertically above the screw hole 38a located between the vertical center line T and one side edge 35, and the screw hole 38b between the vertical center line T and the other side edge 36 and on the side of the vertical center line T is located vertically above the screw hole 38b located between the vertical center line T and the other side edge 36 and on the side of the other side edge 36.

[0053] In the second row of screw holes 38b, the widthwise distance between the center of the screw holes 38b formed on the side of one side edge 36 between the vertical center line T and one side edge 35 and the center of the screw holes 38b formed on the side of the vertical center line T between the vertical center line T and the other side edge is in the range of 30 to 32 mm, and the widthwise distance between the center of the screw holes 38b formed on the side of the vertical center line T between the vertical center line T and the other side edge 36 and the center of the screw holes 38b formed on the side of the vertical center line T between the vertical center line T and the other side edge 36 is in the range of 25 to 27 mm.

[0054] In the second row of screw holes 38b, the widthwise distance between the centers of the screw holes 38b formed on the side of the other side between the vertical center line T and the other side edge 36 is 15 to 17 mm, and the vertical distance between the centers of the screw holes 38a of the first row of screw holes 38a formed on the side of the one side between the vertical center line T and the one side edge 35 and the centers of the screw holes 38a of the second row of screw holes 38b formed on the side of the one side edge between the vertical center line T and the one side edge 35 is 30 to 32 mm. The vertical distance between the centers of the screw holes 38a of the first row of screw holes 38a formed on the side of the one side between the vertical center line T and the other side edge 36 and the centers of the screw holes 38b of the second row of screw holes 38b formed on the side of the vertical center line T and the other side edge 36 is 20 to 22 mm.

[0055] The third row screw holes 38c are two screw holes 38c drilled in the central lower part of the lower area 33 and aligned at an angle in the width direction, with the two screw holes formed between the vertical center line T and the other side edge 36. Of the two third row screw holes 38c, the screw hole 38c located on the rear side of the vertical center line T is positioned vertically above the screw hole 38c located on the other side edge.

[0056] In the third row of screw holes, the widthwise distance between the center of the screw hole 38c formed on the side of the vertical center line T between the vertical center line T and the other side edge 36 and the center of the screw hole 38c formed on the side of the other side edge 36 between the vertical center line T and the other side edge 36 is in the range of 25 to 27 mm, and the widthwise distance between the screw hole 38c formed on the side of the other side edge 36 between the vertical center line T and the other side edge 36 and the other side edge 36 is in the range of 15 to 17 mm. The vertical distance between the screw holes 38b of the second row of screw holes 38b formed on the side of the vertical center line T between the vertical center line T and the other side edge 36 and the screw holes 38c of the third row of screw holes 38c formed on the side of the vertical center line T between the vertical center line T and the other side edge 36 is in the range of 25 to 27 mm, and the vertical distance between the screw holes 38b of the second row of screw holes 38b formed on the side of the other side edge 36 between the vertical center line T and the other side edge 36 and the screw holes 38c of the third row of screw holes 38c formed on the side of the other side edge 36 between the vertical center line T and the other side edge 36 is in the range of 30 to 32 mm.

[0057] In the third row of screw holes 38c, the vertical distance between the center of the screw holes 38c formed on the side of the vertical center line T between the vertical center line T and the other side edge 36 and the lower edge 37 is in the range of 13 to 15 mm, and the vertical distance between the center of the screw holes 38c formed on the side of the other side edge 36 between the vertical center line T and the other side edge 36 and the lower edge 37 is in the range of 19 to 21 mm.

[0058] The screw hole periphery 39 surrounding the first to third rows of screw holes 38a to 38c formed in the lower area 33 of the post-installation connecting plate fitting 10B is recessed from the front surface 31 toward the rear surface 32 of the post-installation connecting plate fitting 10B. The first to third rows of screw holes 38a to 38c are embossed holes, and the recess dimension of the screw hole periphery 39 is 1.3 to 1.7 mm. The first to third rows of screw holes 38a to 38c are screw holes 45 for screwing in long screws, but they may also be blind holes 45 for inserting long screws.

[0059] The upper area 34 of the post-installation connecting plate fitting 10B has side edges 40, 41 extending vertically and an upper edge 42 extending widthwise, and is tapered from bottom to top. The area of ​​the upper area 34 of the post-installation connecting plate fitting 10B gradually decreases from bottom to top. The upper area 34 of the post-installation connecting plate fitting 10B is fixed to the orthogonal laminated floor boards 14 of the first-floor wooden prefabricated house 12 with its rear surface 32 overlapping the front surface 17 of the lower area 19 of the pre-installation connecting plate fitting 10A. Similarly, the upper area 34 of the post-installation connecting plate fitting 10B is fixed to the orthogonal laminated floor boards 14 of the second-floor wooden prefabricated house 13 with its rear surface 32 overlapping the front surface 17 of the lower area 19 of the pre-installation connecting plate fitting 10A. The vertical dimension of the upper area 34 of the rear-mounted connecting plate fitting 10B is in the range of 89 to 94 mm. The maximum horizontal dimension of the upper area 34 of the rear-mounted pre-attaching connecting plate fitting 10B is in the range of 102 to 112 mm. The horizontal dimension of the upper edge 42 of the upper area 34 of the rear-mounted pre-attaching connecting plate fitting 10B is in the range of 82.3 to 87.3 mm.

[0060] The other side edge 41 extending in the vertical direction of the upper area 34 of the retrofit connecting plate fitting 10B is inclined upward so as to gradually approach the one side edge 40 extending in the vertical direction of the lower area 34 as it moves from below to above the lower area 34. The inclination angle of the other side edge 41 of the upper area 34 of the retrofit connecting plate fitting 10B with respect to the vertical center line T is in the range of 13° to 14°.

[0061] Nine first to third rows of screw holes 443a to 43c are drilled (formed) in the upper, central, and lower parts of the upper area 34 of the retrofit connecting plate fitting 10B, aligned linearly in the width direction and also aligned linearly in the vertical direction. The first row of screw holes 43a are three screw holes 43a drilled in the upper part of the upper area 34 and aligned linearly in the width direction, with two screw holes 43a formed between the vertical center line T and one side edge 40 and one screw hole 43a formed between the vertical center line T and the other side edge 41.

[0062] In the first row of screw holes 43a, the widthwise distance between the centers of the screw holes 43a formed on the side of one side edge 40 between the vertical center line T and one side edge 40 and the centers of the screw holes 43a formed on the side of the vertical center line T between the vertical center line T and one side edge 40 is in the range of 25 to 27 mm, and the widthwise distance between the centers of the screw holes 43a formed on the side of the vertical center line T between the vertical center line T and one side edge 40 and the centers of the screw holes 43a formed between the vertical center line T and the other side edge 41 is also in the range of 25 to 27 mm. In the first row of screw holes 43a, the widthwise distance between the centers of the screw holes 43a formed on the side of one side edge 40 between the vertical center line T and one side edge 40 and one side edge 40 is in the range of 15 to 17 mm, and the vertical distance between the centers of the first row of screw holes 43a and the top edge 42 is in the range of 19 to 21 mm.

[0063] The second row of screw holes 43b is three screw holes 43b drilled in the center of the upper area 34 and aligned in a straight line in the width direction, with two screw holes 43b formed between the vertical center line T and one side edge 40 and one screw hole 43b formed between the vertical center line T and the other side edge 41. In the second row of screw holes 43b, the widthwise distance between the center of the screw holes 43b formed on the side of one side edge 40 between the vertical center line T and one side edge 40 and the center of the screw hole 43b formed on the side of the vertical center line T between the vertical center line T and one side edge 40 is in the range of 25 to 27 mm, and the widthwise distance between the center of the screw hole 43b formed on the side of the vertical center line T between the vertical center line T and one side edge 40 and the center of the screw hole 43b formed between the vertical center line T and the other side edge 41 is in the range of 25 to 27 mm. In the second row screw holes 43b, the widthwise distance between the centers of the screw holes 43b formed on the side of one side edge 40 between the vertical center line T and one side edge 40 and the one side edge 40 is in the range of 15 to 17 mm, and the vertical distance between the centers of the first row screw holes 43a and the second row screw holes 43b is in the range of 25 to 27 mm.

[0064] The third row of screw holes 43c is three screw holes 43c drilled in the lower part of the upper area 34 and aligned in a straight line in the width direction, with two screw holes 43c formed between the vertical center line T and one side edge 40 and one screw hole 43c formed between the vertical center line T and the other side edge 41. In the third row of screw holes 43c, the widthwise distance between the center of the screw holes 43c formed on the side of one side edge 40 between the vertical center line T and one side edge 40 and the center of the screw hole 43c formed on the side of the vertical center line T between the vertical center line T and one side edge 40 is in the range of 25 to 27 mm, and the widthwise distance between the center of the screw hole 43c formed on the side of the vertical center line T between the vertical center line T and one side edge 40 and the center of the screw hole 43c formed between the vertical center line T and the other side edge is in the range of 25 to 27 mm. In the third row screw holes 43c, the widthwise distance between the center of the screw holes 43c formed on the side of one side edge 40 between the vertical center line T and one side edge 40 and the center of the one side edge 40 is in the range of 15 to 17 mm, and the vertical distance between the center of the second row screw holes 43b and the third row screw holes 43c is in the range of 25 to 27 mm.

[0065] The screw hole periphery 44 surrounding the first to third rows of screw holes 43a to 43c formed in the upper area 34 of the retrofit connecting plate fitting 10B is recessed from the front surface 31 to the rear surface 32 of the retrofit connecting plate fitting 10B. The first to third rows of screw holes 43a to 43c are embossed holes, and the recess dimension of the screw hole periphery 44 is 1.3 to 1.7 mm. The first to third rows of screw holes 43a to 43c are screw holes 45 for screwing in long screws, but they may also be blind holes 45 for inserting long screws.

[0066] In the connecting plate fittings 10 (pre-attached connecting plate fittings 10A and post-attached connecting plate fittings 10B), the screw hole peripheries 25, 30 of the pre-attached connecting plate fitting 10A and the screw hole peripheries 44, 49 of the post-attached connecting plate fitting 10B, which are recessed from the front faces 17, 31 toward the rear faces 18, 32, function as ribs of the connecting plate fittings 10A, 10B. Because the strength of 10A, 10B is improved, even if an external force is applied to the pre-attached connecting plate fittings 10A and the post-attached connecting plate fittings 10B, the connecting plate fittings 10A, 10B will not be deformed by bending, twisting, or the like, and this prevents the connection between the base 11 and the first-floor wooden prefabricated house 12 or the insufficient connection due to deformation of the connecting plate fittings 10A, 10B, and prevents the connection between the first-floor wooden prefabricated house 12 and the second-floor wooden prefabricated house 13 or the insufficient connection.

[0067] Even if a large relative displacement (horizontal displacement, rotational displacement, compression displacement) occurs between the base 11 and the first-floor wooden prefabricated house 12 or between the first-floor wooden prefabricated house 12 and the second-floor wooden prefabricated house 13 due to an earthquake or the like, and external forces (bending moment, shear force) due to the relative displacement are transmitted from the base 11 to the first-floor wooden prefabricated house 12 or the second-floor wooden prefabricated house 13, the pre-attached connecting plate fittings 10A and the post-attached connecting plate fittings 10B will not be deformed by the external forces, and the connection between the base 11 and the first-floor wooden prefabricated house 12 and the first-floor wooden prefabricated house 12 and the second-floor wooden prefabricated house 13 can be reliably maintained.

[0068] The connecting plate fittings 10 (pre-attached connecting plate fittings 10A and post-attached connecting plate fittings 10B) are formed so that the upper area 20 of the pre-attached connecting plate fitting 10A and the upper area 34 of the post-attached connecting plate fitting 10B taper from below to above, the area of ​​the upper area 21 of the pre-attached connecting plate fitting 10A and the upper area 34 of the post-attached connecting plate fitting 10B gradually decreases from below to above the upper areas 21, 34, and the lower area 33 of the post-attached connecting plate fitting 10B tapers from above to below, and the lower area 33 of the post-attached connecting plate fitting 10B Since the area of ​​area 33 gradually becomes smaller from the top to the bottom of the lower area 33, even if an external force (bending moment, shear force) acts on the pre-attached connecting plate fittings 10A or the post-attached connecting plate fittings 10B, the pre-attached connecting plate fittings 10A and the post-attached connecting plate fittings 10B, which are formed to a tapered shape, can withstand the external force, and the pre-attached connecting plate fittings 10A and the post-attached connecting plate fittings 10B will not be deformed by the external force, and the connection between the foundation 11 and the first-floor wooden prefabricated house 12 and the connection between the first-floor wooden prefabricated house 12 and the second-floor wooden prefabricated house 13 can be reliably maintained.

[0069] Fig. 6 is a front view of a post-installation connecting plate fitting 10B, which is another example of the connecting plate fitting 10, and Fig. 7 is a cross-sectional view taken along the CC line in Fig. 6. The post-installation connecting plate fitting 10B in Fig. 6 is made from steel such as stainless steel, cast steel, or an alloy, and is formed into a thin plate. The post-installation connecting plate fitting 10B has a front surface 31 with a predetermined area, a rear surface 32 with a predetermined area, a lower area 33 that is approximately the lower half of the post-installation connecting plate fitting 10B, and an upper area 34 that is approximately the upper half of the post-installation connecting plate fitting 10B. The thickness between the front and rear surfaces 31, 32 of the post-installation connecting plate fitting 10B is 1.5 to 2.0 mm, and the vertical dimension of the post-installation connecting plate fitting 10B is 178 to 188 mm.

[0070] The lower area 33 of the retrofit connecting plate fitting 10B has both side edges 35, 36 extending straight in the vertical direction and a lower edge 37 extending straight in the width direction, and is shaped like a rectangle that is long in the width direction. The lower area 33 of the retrofit connecting plate fitting 10B is fixed to the base 11. The lower area 33 of the retrofit connecting plate fitting 10B is also fixed to the orthogonal laminated ceiling panel 16 of the first-floor wooden prefabricated house 12. The vertical dimension of the lower area 33 of the retrofit connecting plate fitting 10B is in the range of 89 to 94 mm. The horizontal dimension of the lower area 33 of the retrofit connecting plate fitting 10B is in the range of 102 to 112 mm. The lower area 33 of the retrofit connecting plate fitting 10B is drilled (formed) with first to third rows of nine screw holes 38a to 38c aligned at an angle in the width direction.

[0071] The first row of screw holes 38a is a group of three screw holes 38a drilled in the upper part of the lower area 33 and aligned at an angle in the width direction, with two screw holes 38a formed between the longitudinal center line T and one side edge 35 and one screw hole 38a formed between the longitudinal center line T and the other side edge 36. Of the three first row of screw holes 38a, the screw hole 38a formed between the longitudinal center line T and one side edge 35 and on the side of the one side edge 35 is located vertically above the screw hole 38a formed between the longitudinal center line T and one side edge 35 and on the side of the longitudinal center line T. Of the first row of screw holes 38a, the screw hole 38a formed between the longitudinal center line T and one side edge 35 and on the side of the longitudinal center line T is located vertically above the screw hole 38a formed between the longitudinal center line T and one side edge 35 and on the side of the longitudinal center line T.

[0072] In the first row of screw holes 38a, the widthwise distance between the center of the screw holes 38a formed on the side of one side edge 35 between the vertical center line T and one side edge 35 and the center of the screw holes 38a formed on the side of the vertical center line T between the vertical center line T and one side edge 35 is in the range of 20 to 22 mm, and the widthwise distance between the center of the screw holes 38a formed on the side of the vertical center line T between the vertical center line T and one side edge 35 and the center of the screw holes 38a formed between the vertical center line T and the other side edge 36 is in the range of 30 to 32 mm. In the first row of screw holes 38a, the widthwise distance between the centers of screw holes 38a formed on the side of one side edge 35 between the vertical center line T and one side edge 35 and one of the sides 35 is in the range of 25 to 27 mm, and the widthwise distance between the centers of screw holes 38a formed on the side of the vertical center line T between the vertical center line T and one side edge 35 and one of the sides 35 is in the range of 45 to 47 mm. In the first row of screw holes 38a, the widthwise distance between the centers of screw holes 38a formed on the side of the vertical center line T between the vertical center line T and the other side edge 36 and the other side edge 36 is in the range of 40 to 42 mm.

[0073] The second row of screw holes 38b is a set of four screw holes 38b drilled in the upper, central, and lower portions of the lower area 33 and aligned at an angle in the width direction, with two screw holes 38b formed between the vertical centerline T and one side edge 35 and two screw holes 38b formed between the vertical centerline T and the other side edge 36. Of the four second row of screw holes 38b, the screw holes 38b located on the side of one side edge 35 between the later vertical centerline T and one side edge 35 are positioned vertically above the screw holes 38b located on the side of one side edge 35. Of the second row of screw holes 38b, the screw holes 38b located on the side of the vertical centerline T between the vertical centerline T and one side edge 35 are positioned vertically above the screw holes 38b located on the side of the vertical centerline T between the later vertical centerline T and one side edge 35. The screw holes 38b located between the vertical center line T and the other side edge 36 and on the side of the vertical center line T after the second row of screw holes 38b are located vertically above the screw holes 38b located between the vertical center line T and the other side edge 36 and on the side of the other side edge 36.

[0074] In the second row of screw holes 38b, the widthwise distance between the center of the screw holes 38b located on the side of one side edge 35 between the vertical center line T and one side edge 35 and the center of the screw holes 38b located on the side of the vertical center line T between the vertical center line T and one side edge 35 is in the range of 20 to 22 mm, and the widthwise distance between the center of the screw holes 38b located on the side of the vertical center line T between the vertical center line T and one side edge 35 and the center of the screw holes 38b located on the side of the vertical center line T between the vertical center line T and the other side edge 36 is in the range of 30 to 32 mm. In the second row of screw holes 38b, the widthwise distance between the centers of screw holes 38b located on the side of the vertical centerline T between the vertical centerline T and the other side edge 36 and the centers of screw holes 38b located on the side of the other side edge 36 between the vertical centerline T and the other side edge 36 is in the range of 25 to 27 mm, and the widthwise distance between the centers of screw holes 38b located on the side of the one side edge 35 between the vertical centerline T and one side edge 35 and the one side edge 35 is in the range of 25 to 27 mm. In the second row of screw holes 38b, the widthwise distance between the centers of screw holes 38b located on the side of the other side edge 36 between the vertical centerline T and the other side edge 36 and the other side edge 36 is in the range of 15 to 17 mm.

[0075] In the second row of screw holes 38b, the vertical distance between the center of the screw holes 38b formed on the side of one of the side edges 35 between the vertical center line T and one of the side edges 35 and the center of the screw holes 38a of the first row of screw holes 38a formed on the side of one of the side edges 35 between the vertical center line T and one of the side edges 35 is in the range of 30 to 32 mm, and the vertical distance between the center of the screw holes 38b formed on the side of one of the side edges 35 between the vertical center line T and one of the side edges 35 and the lower edge 37 is in the range of 25 to 27 mm. In second row screw holes 38b, the vertical distance between the center of screw holes 38b formed on the side of vertical center line T between vertical center line T and one side edge 35 and the center of screw holes 38b of first row screw holes 38a formed on the side of vertical center line T between vertical center line T and one side edge 35 is in the range of 30 to 32 mm, and the vertical distance between the center of screw holes 38b formed on the side of vertical center line T between vertical center line T and one side edge 35 and bottom edge 37 is in the range of 35 to 37 mm. In second row screw holes 38b, the vertical distance between the center of screw holes 38b formed on the side of vertical center line T between vertical center line T and the other side edge 36 and the center of screw holes 38a of first row screw holes 38a formed between vertical center line T and the other side edge 36 is in the range of 25 to 27 mm.

[0076] The third row screw holes 38c are two screw holes 38c drilled in the lower part of the lower area 33 and aligned at an angle in the width direction, with the two screw holes 38c formed between the vertical center line T and the other side edge 36. Of the two third row screw holes 38c, the screw hole 38c located between the vertical center line T and the other side edge 36 and on the side of the vertical center line T is located vertically above the screw hole 38c located between the vertical center line T and the other side edge 36 and on the side of the other side edge 36.

[0077] In the third row of screw holes 38c, the widthwise distance between the center of the screw holes 38c formed on the side of the vertical center line T between the vertical center line T and the other side edge 36 and the center of the screw holes 38c formed on the side of the other side edge 36 between the vertical center line T and the other side edge 36 is in the range of 25 to 27 mm, and the vertical distance between the center of the screw holes 38c formed on the side of the vertical center line T between the vertical center line T and the other side edge 36 and the center of the screw holes 38b of the second row of screw holes 38b formed on the side of the vertical center line T between the vertical center line T and the other side edge 36 is in the range of 25 to 27 mm. In the third row of screw holes 38c, the vertical distance between the center of screw holes 38c formed on the side of the vertical center line T between the vertical center line T and the other side edge 36 and the lower edge is 15 to 17 mm, and the vertical distance between the center of screw holes 38c formed on the side of the other side edge 36 between the vertical center line T and the other side edge 36 and the center of screw holes 38a in the second row of screw holes 38b formed on the side of the other side edge 36 between the vertical center line T and the other side edge 36 is 30 to 32 mm. In the third row of screw holes 38c, the vertical distance between the center of screw holes 38c formed on the side of the other side edge 36 between the vertical center line T and the other side edge 36 and the lower edge 37 is 20 to 22 mm.

[0078] The screw hole periphery 39 surrounding the first to third rows of screw holes 38a to 38c formed in the lower area 33 of the post-installation connecting plate fitting 10B is recessed from the front surface 31 toward the rear surface 32 of the post-installation connecting plate fitting 10B. The first to third rows of screw holes 38a to 38c are embossed holes, and the recess dimension of the screw hole periphery 39 is 1.3 to 1.7 mm. The first to third rows of screw holes 38a to 38c are screw holes 45 for screwing in long screws, but they may also be blind holes 45 for inserting long screws.

[0079] The upper area 34 of the retrofit connecting plate fitting 10B in Figure 6 has side edges 40, 41 extending vertically and an upper edge 42 extending widthwise, and is tapered from bottom to top. The area of ​​the upper area 34 of the retrofit connecting plate fitting 10B gradually decreases from bottom to top. The upper area 34 of the retrofit connecting plate fitting 10B is fixed to the orthogonal laminated floor boards 14 of the first-floor wooden prefabricated house 12 with its rear surface 32 overlapping the front surface 17 of the lower area 19 of the prefabricated connecting plate fitting 10A. Similarly, the upper area 34 of the retrofit connecting plate fitting 10B is fixed to the orthogonal laminated floor boards 14 of the second-floor wooden prefabricated house 13 with its rear surface 32 overlapping the front surface 17 of the lower area 19 of the prefabricated connecting plate fitting 10A. The vertical dimension of the upper area 34 of the post-attachment connecting plate fitting 10B is in the range of 90 to 95 mm. The maximum horizontal dimension of the upper area 34 of the pre-attachment connecting plate fitting 10B is in the range of 115 to 120 mm, and the horizontal dimension of the upper edge 42 of the upper area 34 of the pre-attachment connecting plate fitting 10B is in the range of 82 to 87 mm.

[0080] The other side edge 41 extending in the vertical direction of the upper area 34 of the retrofit connecting plate fitting 10B is inclined upward so as to gradually approach the one side edge 40 extending in the vertical direction of the lower area 34 as it moves from below to above the lower area 34. The inclination angle of the other side edge 41 of the upper area 34 of the retrofit connecting plate fitting 10B with respect to the vertical center line T is in the range of 13° to 14°.

[0081] Nine first to third rows of screw holes 43a to 43c are drilled (formed) in the upper, central, and lower parts of the upper area 34 of the retrofit connecting plate fitting 10B, aligned linearly in the width direction and also aligned linearly in the vertical direction. The first row of screw holes 43a are three screw holes 43a drilled in the upper part of the upper area 34 and aligned linearly in the width direction, with two screw holes 43a formed between the vertical center line T and one side edge 40 and one screw hole 43a formed between the vertical center line T and the other side edge 41.

[0082] In the first row of screw holes 43a, the widthwise distance between the centers of the screw holes 43a formed on the side of one side edge 40 between the vertical center line T and one side edge 40 and the centers of the screw holes 43a formed on the side of the vertical center line T between the vertical center line T and one side edge 40 is in the range of 25 to 27 mm, and the widthwise distance between the centers of the screw holes 43a formed on the side of the vertical center line T between the vertical center line T and one side edge 40 and the centers of the screw holes 43a formed between the vertical center line T and the other side edge 41 is also in the range of 25 to 27 mm. In the first row of screw holes 43a, the widthwise distance between the centers of the screw holes 43a formed on the side of one side edge 40 between the vertical center line T and one side edge 40 and one side edge 40 is in the range of 15 to 17 mm, and the vertical distance between the centers of the first row of screw holes 43a and the top edge 42 is in the range of 20 to 22 mm.

[0083] The second row of screw holes 43b is three screw holes 43b drilled in the center of the upper area 34 and aligned in a straight line in the width direction, with two screw holes 43b formed between the vertical center line T and one side edge 40 and one screw hole 43b formed between the vertical center line T and the other side edge 41. In the second row of screw holes 43b, the widthwise distance between the center of the screw holes 43b formed on the side of one side edge 40 between the vertical center line T and one side edge 40 and the center of the screw hole 43b formed on the side of the vertical center line T between the vertical center line T and one side edge 40 is in the range of 25 to 27 mm, and the widthwise distance between the center of the screw hole 43b formed on the side of the vertical center line T between the vertical center line T and one side edge 40 and the center of the screw hole 43b formed between the vertical center line T and the other side edge 41 is in the range of 25 to 27 mm. In the second row screw holes 43b, the widthwise distance between the centers of the screw holes 43b formed on the side of one side edge 40 between the vertical center line T and one side edge 40 and the one side edge 40 is in the range of 15 to 17 mm, and the vertical distance between the centers of the first row screw holes 43a and the second row screw holes 43b is in the range of 25 to 27 mm.

[0084] The third row of screw holes 43c is three screw holes 43c drilled in the lower part of the upper area 34 and aligned in a straight line in the width direction, with two screw holes 43c formed between the vertical center line T and one side edge 40 and one screw hole 43c formed between the vertical center line T and the other side edge 41. In the third row of screw holes 43c, the widthwise distance between the center of the screw holes 43c formed on the side of one side edge 40 between the vertical center line T and one side edge 40 and the center of the screw hole 43c formed on the side of the vertical center line T between the vertical center line T and one side edge 40 is in the range of 25 to 27 mm, and the widthwise distance between the center of the screw hole 43c formed on the side of the vertical center line T between the vertical center line T and one side edge 40 and the center of the screw hole 43c formed between the vertical center line T and the other side edge 41 is in the range of 25 to 27 mm. In the third row screw holes 43c, the widthwise distance between the center of the screw holes 43c formed on the side of one side edge 40 between the vertical center line T and one side edge 40 and the center of the one side edge 40 is in the range of 15 to 17 mm, and the vertical distance between the center of the second row screw holes 43b and the third row screw holes 43c is in the range of 25 to 27 mm.

[0085] The screw hole periphery 44 surrounding the first to third rows of screw holes 43a to 43c formed in the upper area 34 of the retrofit connecting plate fitting 10B in Figure 6 is recessed from the front surface 31 toward the rear surface 32 of the retrofit connecting plate fitting 10B. The first to third rows of screw holes 43a to 43c are embossed holes, and the recess dimension of the screw hole periphery 44 is 1.3 to 1.7 mm. The first to third rows of screw holes 43a to 43c are screw holes 45 for screwing in long screws, but they may also be blind holes 45 for inserting long screws.

[0086] In the add-on connecting plate fitting 10B of Figure 6, the screw hole peripheries 39, 44 of the add-on connecting plate fitting 10B, which are recessed from the front surface 31 toward the rear surface 32, function as ribs of the connecting plate fitting 10B, and the screw hole peripheries 39, 44, which are recessed from the front surface 31 toward the rear surface 32, improve the strength of the add-on connecting plate fitting 10B. Therefore, even if an external force is applied to the add-on connecting plate fitting 10B, the add-on connecting plate fitting 10B will not be deformed by bending, twisting, or the like, and this prevents the connection between the base 11 and the first-floor wooden prefabricated house 12 from being released or insufficient due to deformation of the add-on connecting plate fitting 10B, and prevents the connection between the first-floor wooden prefabricated house 12 and the second-floor wooden prefabricated house 13 from being released or insufficient.

[0087] Even if an earthquake or the like causes a large relative displacement (horizontal displacement, rotational displacement, compressive displacement) between the foundation 11 and the first-floor wooden prefabricated house 12 or between the first-floor wooden prefabricated house 12 and the second-floor wooden prefabricated house 13, and an external force (bending moment, shear force) due to the relative displacement is transmitted from the foundation 11 to the first-floor wooden prefabricated house 12 or the second-floor wooden prefabricated house 13, the post-installed connecting plate fitting 10B in Figure 6 will not be deformed by the external force, and the connection between the foundation 11 and the first-floor wooden prefabricated house 12 and the connection between the first-floor wooden prefabricated house 12 and the second-floor wooden prefabricated house 13 can be reliably maintained.

[0088] In the add-on connecting plate fitting 10B of Figure 6, the upper area 34 of the add-on connecting plate fitting 10B is tapered from below to above, and the area of ​​the upper area 34 of the add-on connecting plate fitting 10B gradually decreases from below to above the upper area 34. Therefore, even if an external force (bending moment, shear force) acts on the add-on connecting plate fitting 10B, the add-on connecting plate fitting 10B, which has an upper area 34 that tapers from below to above, can withstand the external force and will not deform the add-on connecting plate fitting 10B due to the external force, so that the connection between the foundation 11 and the first-floor wooden prefabricated house 12 and the connection between the first-floor wooden prefabricated house 12 and the second-floor wooden prefabricated house 13 can be reliably maintained.

[0089] Fig. 8 is a perspective view showing an example of wooden prefabricated houses 12A, 13A that use connecting plate fittings 10, and Fig. 9 is a perspective view of the wooden prefabricated houses 12A, 13A of Fig. 8 as seen from the rear. Fig. 10 is a front view of the wooden prefabricated houses 12A, 13A of Fig. 8. Fig. 11 is a perspective view showing another example of wooden prefabricated houses 12A, 13A that use connecting plate fittings 10, and Fig. 12 is a perspective view of the wooden prefabricated houses 12B, 13B of Fig. 11 as seen from the rear. Fig. 13 is a front view of the wooden prefabricated houses 12B, 13B of Fig. 11, and Fig. 14 is a partially enlarged view illustrating an example of a first connecting means in a method for connecting wooden prefabricated houses. In Figs. 8 and 11, the up-down direction is indicated by arrow X, the front-rear direction is indicated by arrow Y, and the width direction is indicated by arrow Z.

[0090] The prefabricated wooden houses 12A and 12B shown in FIG. 8 and the prefabricated wooden houses 12B and 13B shown in FIG. 11 used in the method for connecting prefabricated wooden houses using the connecting plate fittings 10 are assembled at an assembly factory, then transported to a predetermined installation site by a predetermined transportation means, and erected at the installation site. By combining two or more prefabricated wooden houses 12A, 12B, 13A, and 13B and erecting them at the installation site, wooden modular houses (buildings) with various floor plans can be created. Transportation means include transport vehicles, railways, and ships.

[0091] The wooden prefabricated houses 12A, 13A shown in Figure 8 are formed from horizontally extending orthogonally laminated ceiling boards 16 of a predetermined area, horizontally extending orthogonally laminated floor boards 14 of a predetermined area, and vertically extending wood-based wall panels 15 of a predetermined area. The orthogonally laminated ceiling boards 16 and orthogonally laminated floor boards 14 are made of CLT (Cross Laminated Timber), which is made by arranging planks (lamina) and then laminating and bonding them with an adhesive (aqueous polymer isocyanate resin adhesive (non-formaldehyde adhesive)) so that the fiber directions are perpendicular to each other.

[0092] CLT can be made up of three layers (3 ply), three layers (4 ply), five layers (5 ply), five layers (7 ply), seven layers (7 ply), or nine layers (9 ply). CLT can be made up of cedar CLT panels, cypress CLT panels, larch CLT panels, and todomatsu CLT panels. CLT has excellent thermal insulation and energy-saving properties, and is earthquake-resistant, while being lighter than reinforced concrete. Any type of CLT that will be developed in the future can be used.

[0093] The cross-laminated ceiling board 16 of the wooden prefabricated houses 12A, 13A in Fig. 8 is formed in a generally rectangular shape that is long in the front-to-rear direction, and has a first end edge 46 and a second end edge 47 that extend in the front-to-rear direction, and a first side edge 48 and a second side edge 49 that extend in the width direction. A plurality of rafters extending in the width direction are arranged on the upper surface of the cross-laminated ceiling board 16 at equal intervals in the front-to-rear direction. Sheathing plywood is attached to the rafters. The rafters and sheathing plywood are fixed to the cross-laminated ceiling board 16 (CLT) with long screws (not shown).

[0094] The orthogonally laminated floorboards 14 of the wooden prefabricated houses 12A, 13A in Figure 8 are formed into a roughly rectangular shape that is long in the front-to-rear direction, and have a first end edge 50 and a second end edge 51 that extend in the front-to-rear direction, and a first side edge 52 and a second side edge 53 that extend in the width direction. Flooring is applied to the upper surfaces of the orthogonally laminated floorboards 14. The flooring (sound-insulating wooden flooring with special cushioning material that improves sound insulation performance) is bonded to the upper surfaces of the orthogonally laminated floorboards 14 with an adhesive.

[0095] A first hook member 54 (first support member) extending in the front-to-rear direction is attached to the widthwise center (predetermined location) of the first side edge 52 of the orthogonal laminated floor board 14, and a second hook member 54 (first support member) extending in the front-to-rear direction is attached to the widthwise center (predetermined location) of the second side edge 53 of the orthogonal laminated floor board 14. The first hook member 54 has a fixing portion (not shown) inserted through the wood-based wall panel 15 and screwed and fixed to the first side edge 52 and second side edge 53 of the orthogonal laminated floor board 14, and a hook portion 55 connected to the fixing portion and exposed in the front-to-rear direction from the first side edge 52 and second side edge 53 of the orthogonal laminated floor board 14. One end of a chain 71 or wire rope 71 extending from a ratchet-type pulling jack 70 (pulling jack) is engaged (hooked) to the hook portion 44 of the first hook member 54.

[0096] 8, a first hook member 54 (first support member) extending upward may be attached to the widthwise center of the upper surface (predetermined location) of the orthogonal laminated floor board 14 on the side of the first side edge 52, and a first hook member 54 (first support member) extending upward may be attached to the widthwise center of the upper surface (predetermined location) of the orthogonal laminated floor board 14 on the side of the second side edge 53. The first hook member 54 may be attached to the orthogonal laminated floor board 14 in an assembly factory or at the installation site.

[0097] The wooden wall panels 15 of the wooden prefabricated house 12A in Fig. 8 are formed from a first wooden wall panel 15a of a predetermined area extending in the width direction, a second wooden wall panel 15b of a predetermined area extending in the width direction, and a third wooden wall panel 15c of a predetermined area extending in the front-to-rear direction. The first to third wooden wall panels 15a to 15c are made by the two-by-four construction method using two-by-four lumber (2x4 lumber) and are formed into a substantially rectangular shape.

[0098] CLT and 2x4 lumber use wood, a renewable and recyclable resource, as structural materials, and the use of CLT and 2x4 lumber allows for the effective use of sustainable wood resources. CLT and 2x4 lumber use less energy and emit less CO2 in the manufacturing process than steel or concrete, making them building materials with a low environmental impact. The wood that makes up CLT and 2x4 lumber is the only natural resource that can be reproduced through planned logging and reforestation, so it can be used in perpetuity.

[0099] Furthermore, in managed forests (commercial forests), repeated planned cutting and replanting can help regenerate healthy forests. Using CLT and 2x4 lumber as building materials absorbs and fixes CO2 from the atmosphere and stores it within the building, fulfilling the same role as a forest. Creating a long-lasting wooden housing stock means having another forest within the city, which also contributes to environmental conservation.

[0100] Although not shown, the first to third wood-based wall panels 15a to 15c are formed from a top joint (square timber) and an upper frame (square timber) extending in the front-to-back or width direction, a lower frame (square timber) located vertically below the upper frame and extending in the front-to-back or width direction, a first vertical frame (square timber) located between the upper and lower frames and extending in the vertical direction, a second vertical frame (square timber) extending vertically opposite the first vertical frame and spaced apart in the front-to-back or width direction, and a plurality of studs (square timbers) located between the first and second vertical frames, extending in the vertical direction, and spaced apart in the front-to-back or width direction.

[0101] The head joint, upper frame, lower frame, first vertical frame, second vertical frame, and studs are connected with standardized nails. The first to third wooden wall panels 15a to 15c are made by assembling each piece of 2x4 lumber (head joint, upper frame, lower frame, first vertical frame, second vertical frame, and studs) to form a "framework" that forms a highly rigid diaphragm.

[0102] The first wood-based wall panel 15a has an upper end 56 (head joint and upper frame) extending in the width direction, a lower end 57 (lower frame) located vertically below the upper end 56 and extending in the width direction, and both side edges 58, 59 (first vertical frame, second vertical frame) extending vertically from the upper end 56 toward the lower end 57. Window frames (sashes) and door frames of various shapes are made from the first wood-based wall panel 15a.

[0103] The second wood wall panel 15b faces the first wood wall panel 15a at a distance in the front-to-rear direction. The second wood wall panel 15b has an upper end 56 (head joint and upper frame) extending in the width direction, a lower end 57 (lower frame) located vertically below the upper end 56 and extending in the width direction, and both side edges 58, 59 (first vertical frame, second vertical frame) extending vertically from the upper end 56 toward the lower end 57. Window frames (sashes) and door frames of various shapes are made from the second wood panel 15b.

[0104] The wood-based third wall panel 15c is located between a side edge 59 of the first wood-based wall panel 15a and a side edge 59 of the second wood-based wall panel 15b. The wood-based third wall panel 15c has an upper end 56 (head joint and upper frame) extending in the front-to-rear direction, a lower end 57 (lower frame) located vertically below the upper end 56 and extending in the front-to-rear direction, and both side edges 58, 59 (first vertical frame, second vertical frame) extending vertically from the upper end 56 toward the lower end 57. Window frames (sashes) of various shapes are made from the wood-based third panel 15c. Although not shown, the first to third wood-based wall panels 15a to 15c are fitted with electrical appliances such as wiring cables, outlet boxes, and outlet plates, plumbing equipment such as water supply and drainage pipes, and air conditioning equipment such as pipes and ducts, and holes for ventilation openings and air conditioner refrigerant pipes and drain hoses are drilled.

[0105] In the wooden prefabricated houses 12A and 13A shown in Fig. 8, the first to third wooden wall panels 15a to 15c are connected to the orthogonally laminated ceiling board 16 and the orthogonally laminated floor boards 14, the first wooden wall panel 15a is connected to the third wall panel 15c, and the second wooden wall panel 15b is connected to the third wall panel 15c. By connecting the first to third wooden wall panels 15a to 15c and the orthogonally laminated floor boards 14, and by connecting the first to third wooden wall panels 15a to 15c, an internal living space of a predetermined volume that is long in the front-to-rear direction (or width direction) is defined, surrounded by the orthogonally laminated ceiling board 16, the orthogonally laminated floor boards 14, and the first to third wooden wall panels 15a to 15c.

[0106] The orthogonally laminated ceiling board 16 and the first to third wooden wall panels 15a to 15c are connected by hold-down hardware (pulling hardware) and at least diagonal long screws out of vertical long screws (vertical screws) and diagonal long screws (diagonal screws). The orthogonally laminated floor board 14 and the first to third wooden wall panels 15a to 15c are connected by hold-down hardware (pulling hardware) and at least diagonal long screws out of vertical long screws (vertical screws) and diagonal long screws (diagonal screws). The first to third wooden wall panels 15a to 15c are connected by long screws.

[0107] The wooden prefabricated houses 12B and 13B shown in Fig. 11 are formed from horizontally extending orthogonal laminated ceiling boards 16 of a predetermined area, horizontally extending orthogonal laminated floor boards 14 of a predetermined area, and vertically extending wood-based wall panels 15 of a predetermined area. The orthogonal laminated ceiling boards 16 and the orthogonal laminated floor boards 14 are made of CLT (Cross Laminated Timber), the same as those used in the wooden prefabricated house 45A in Fig. 8.

[0108] The cross-laminated ceiling board 16 of the wooden prefabricated houses 12B, 13B in Fig. 11 is formed in a generally rectangular shape that is long in the front-to-rear direction, and has a first end edge 60 and a second end edge 61 that extend in the front-to-rear direction, and a first side edge 62 and a second side edge 63 that extend in the width direction. A plurality of rafters extending in the width direction at equal intervals in the front-to-rear direction are placed on the top surface of the cross-laminated ceiling board 16, and sheathing plywood is attached to these rafters. The rafters and sheathing plywood are fixed to the cross-laminated ceiling board 16 (CLT) with long screws (not shown).

[0109] The orthogonally laminated floorboards 14 of the wooden prefabricated houses 12B, 13B in Fig. 11 are formed into a generally rectangular shape that is long in the front-to-rear direction, and have a first end edge 64 and a second end edge 65 that extend in the front-to-rear direction, and a first side edge 66 and a second side edge 67 that extend in the width direction. Flooring (sound-insulating wooden flooring with special cushioning material that improves sound insulation performance) is bonded to the upper surface of the orthogonally laminated floorboards 14 with an adhesive.

[0110] A second hook member 68 (second support member) extending in the front-to-rear direction is attached to the widthwise center (predetermined location) of the first side edge 66 of the orthogonal laminated floor board 14, and a second hook member 68 (second support member) extending in the front-to-rear direction is attached to the widthwise center (predetermined location) of the second side edge 67 of the orthogonal laminated floor board 14. The second hook member 68 has a fixing portion (not shown) inserted through the wood-based wall panel 15 and screwed and fixed to the first side edge 66 and second side edge 67 of the orthogonal laminated floor board 14, and a hook portion 69 connected to the fixing portion and exposed in the front-to-rear direction from the first side edge 66 and second side edge 67 of the orthogonal laminated floor board 14. The other end of a chain 71 or wire rope 71 extending from a ratchet-type pulling jack 70 (pulling jack) is engaged (hooked) to the hook portion 69 of the second hook member 68.

[0111] 11, a second hook member 68 (second support member) extending upward is attached to the widthwise center of the upper surface (predetermined location) of the orthogonal laminated floor board 14 on the side of the first side edge 66, and a second hook member 68 (second support member) extending upward may also be attached to the widthwise center of the upper surface (predetermined location) of the orthogonal laminated floor board 14 on the side of the second side edge 67. The second hook member 68 may be attached to the orthogonal laminated floor board 14 in an assembly factory or at the installation site.

[0112] The wooden wall panel 15 of the prefabricated wooden house in Fig. 11 is formed from a first wooden wall panel 15d of a predetermined area extending in the width direction and a second wooden wall panel 15e of a predetermined area extending in the width direction. The first wooden wall panel 15d and the second wooden wall panel 15e are made by the two-by-four construction method using two-by-four lumber (2x4 lumber) and are formed into a substantially rectangular shape, similar to the first wooden wall panel to the third wooden wall panels 15a to 15c of the prefabricated wooden houses 12A and 13A in Fig. 8.

[0113] The first wood-based wall panel 15d and the second wood-based wall panel 15e are formed from a top joint (square timber) and an upper frame (square timber) extending in the front-to-back or width direction, a lower frame (square timber) located vertically below the upper frame and extending in the front-to-back or width direction, a first vertical frame (square timber) located between the upper and lower frames and extending in the vertical direction, a second vertical frame (square timber) extending vertically opposite the first vertical frame and spaced apart in the front-to-back or width direction, and a plurality of studs (square timbers) located between the first and second vertical frames, extending in the vertical direction, and spaced apart in the front-to-back or width direction.

[0114] The head joints, upper frame, lower frame, first vertical frame, second vertical frame, and studs are connected with standardized nails, just like those of the first to third wooden wall panels 15a to 15c. The first wooden wall panel 15d and the second wooden wall panel 15e are made by assembling each piece of 2x4 lumber (head joints, upper frame, lower frame, first vertical frame, second vertical frame, and studs) to create a "framework" that forms a highly rigid diaphragm.

[0115] The first wood-based wall panel 15d has an upper end 56 (head joint and upper frame) extending in the width direction (or front-to-rear direction), a lower end 57 (lower frame) located vertically below the upper end 56 and extending in the width direction (or front-to-rear direction), and both side edges 57, 58 (first vertical frame, second vertical frame) extending in the vertical direction. Window frames (sashes) and door frames of various shapes are made from the first wood-based wall panel 15d.

[0116] The second wood-based wall panel 15e faces the first wood-based wall panel 15d in the front-to-rear direction and is spaced apart from it. The second wood-based wall panel 15e has an upper end 56 (head joint and upper frame) extending in the width direction, a lower end 57 (lower frame) located vertically below the upper end 56 and extending in the width direction, and side edges 58, 59 (first vertical frames) extending in the vertical direction. Various shapes of window frames (sashes) and door frames are made in the second wood-based panel 15e. Although not shown, electrical appliances such as wiring cables, outlet boxes, and outlet plates, plumbing equipment such as water supply and drainage pipes, and air conditioning equipment such as piping and ducts are installed in the first wood-based wall panel 15d and the second wood-based wall panel 15e, and holes for ventilation openings and air conditioner refrigerant pipes and drain hoses are drilled in the panels.

[0117] In the wooden prefabricated houses 12B and 13B in Fig. 11, the first wood wall panel 15d and the second wood wall panel 15e are connected to the orthogonal laminated ceiling board 16 and the orthogonal laminated floor board 14. By connecting the first wood wall panel 15d and the second wood wall panel 15e to the orthogonal laminated ceiling board 16 and the orthogonal laminated floor board 14, an internal living space of a predetermined volume that is long in the front-to-rear direction and surrounded by the orthogonal laminated ceiling board 16, the orthogonal laminated floor board 14, and the first and second wood wall panels 15d, 15e is defined.

[0118] The first and second wooden wall panels 15d, 15e and the orthogonal laminated ceiling boards 16 are connected by hold-down hardware (pulling hardware) and by at least diagonal long screws out of vertical long screws (vertical screws) and diagonal long screws (diagonal screws). The first and second wooden wall panels 15d, 15e and the orthogonal laminated floor boards 14 are connected by at least diagonal long screws out of vertical long screws (vertical screws) and diagonal long screws (diagonal screws).

[0119] Pre-attached connecting plate fittings 10A are attached to wooden prefabricated houses 12A, 12B, 13A, and 13B assembled at an assembly factory, as shown in Fig. 14. At the assembly factory, the rear surface 18 of the pre-attached connecting plate fitting 10A is brought into contact with the front surface of the wooden wall panels 15a and 15b of the first wooden prefabricated house 12A (first-story wooden prefabricated house 12A), and in this state, screws 73 are driven (screwed or hammered) into each of the screw holes 29a to 29e in the upper area 20 of the pre-attached connecting plate fitting 10A to connect and fix the upper area 20 of the pre-attached connecting plate fitting 10A to the wooden wall panels 15a and 15b of the first wooden prefabricated house 12A (first connecting means). In addition, the rear surface of the pre-attached connecting plate fitting is abutted against the front surface of the wooden wall panels 15d, 15e of the second wooden prefabricated house 12B (first-floor wooden prefabricated house 12B), and in this state, screws 73 are driven (screwed or hammered) into each of the screw holes 29a to 29e of the upper area 20 of the pre-attached connecting plate fitting 10A, thereby connecting and fixing the upper area 20 of the pre-attached connecting plate fitting 10A to the wooden wall panels 15d, 15e of the second wooden prefabricated house 12B (first connecting means).

[0120] Furthermore, at the assembly factory, the rear surface 18 of the pre-attached connecting plate fitting 10A is abutted against the front surface of the wooden wall panels 15a, 15b of the first wooden pre-assembled house 13A (two-story wooden pre-assembled house 13A), and in this state, screws 73 are driven (screwed or hammered) into each of the screw holes 29a to 29e of the upper area 20 of the pre-attached connecting plate fitting 10A, thereby connecting and fixing the upper area 20 of the pre-attached connecting plate fitting 10A to the wooden wall panels 15a, 15b of the first wooden pre-assembled house 13A (first connecting means). Furthermore, the rear surface 18 of the pre-attached connecting plate fitting 10A is brought into contact with the front surface of the wooden wall panels 15d, 15e of the second wooden prefabricated house 13B (the two-story wooden prefabricated house 13B), and in this state, screws 73 are driven (screwed or hammered) into each of the screw holes 29a-29e in the upper area 20 of the pre-attached connecting plate fitting 10A to connect and fix the upper area 20 of the pre-attached connecting plate fitting 10A to the wooden wall panels 15d, 15e of the second wooden prefabricated house 12B (first connecting means). Note that, with the first connecting means, the multiple pre-attached connecting plate fittings 10A are connected and fixed to the wooden wall panels 15a, 15b, 15d, 15e of the wooden prefabricated houses 12A, 12B, 13A, 13B at predetermined intervals in the front-to-rear and width directions of the wooden prefabricated houses 12A, 12B, 13A, 13B. Furthermore, after the prefabricated houses 12A, 12B, 13A, and 13B are transported to the installation site, the pre-attached connecting plate fittings 10A may be connected and fixed to the wooden wall panels 15a, 15b, 15d, and 15e of the wooden prefabricated houses 12A, 12B, 13A, and 13B.

[0121] Fig. 15 is a partially enlarged view illustrating an example of a second connecting means in the wooden prefabricated house connecting method, and Fig. 16 is a side view of the wooden prefabricated houses 12A and 13B illustrating an example of a first pulling means for pulling the wooden prefabricated house 12B together. Fig. 17 is a side view of the wooden prefabricated houses 12A and 13B illustrating the first pulling means, continuing from Fig. 16. Fig. 16 shows the first and second wooden prefabricated houses 12A and 12B placed on the foundation 11. Figs. 16 and 17 schematically show the wooden prefabricated houses 12A and 12B of Figs. 8 and 11.

[0122] 1, assembled in a factory and fitted with a plurality of pre-attached connecting plate fittings 10A, is transported to the installation site by a transport vehicle (transportation means), then lifted from the transport vehicle by a crane (not shown), and placed on a base 11 laid on the foundation rise of the foundation (raft foundation, strip footing) at the installation site created by foundation work. After placing the first wooden prefabricated house 12A on the base 11, the position of the first wooden prefabricated house 12A relative to the base 11 is finely adjusted in the front-to-back and width directions, and the cross-laminated slabs 14 (CLT) of the first wooden prefabricated house 12A are connected to the base 11.

[0123] When connecting the orthogonal laminated floor panels 14 of the first wooden prefabricated house 12A to the foundation 11, the rear surface 32 of the upper area 34 of the post-attached connecting plate fitting 10B is overlapped with the front surface 17 of the lower area 19 of the pre-attached connecting plate fitting 10A, and then screws 73 are driven (screwed or hammered) into each of the screw holes 38a to 38c, 43a to 43c in the upper area 34 and lower area 33 of the post-attached connecting plate fitting 10B and each of the screw holes 24a to 24d in the lower area 19 of the pre-attached connecting plate fitting 10A, thereby connecting and fixing the lower area 19 of the pre-attached connecting plate fitting 10A and the upper area 34 of the post-attached connecting plate fitting 10B to the orthogonal laminated floor panels 14 of the first-floor wooden prefabricated house 12A, and connecting and fixing the lower area 33 of the post-attached connecting plate fitting 10B to the foundation 11 (second connecting means).

[0124] Although not shown, straight screws (vertical screws) and long diagonal screws (diagonal screws) are driven into the orthogonal laminated floor boards 14 and the base 11 of the first wooden prefabricated house 12A. The orthogonal laminated floor boards 14 (CLT) and the base 11 of the first wooden prefabricated house 12A are connected by pre-attached connecting plate fittings 10A and post-attached connecting plate fittings 10B, and are also connected and fixed by long vertical screws (vertical screws) and long diagonal screws (diagonal screws).

[0125] Next, the second wooden prefabricated house 12B (wooden prefabricated house) shown in Figure 11, which has been assembled in a factory and has a plurality of pre-attached connecting plate fittings 10A attached, is transported to the installation site by a transport vehicle (transport means), and then the second wooden prefabricated house 12B is lifted from the transport vehicle by a crane and placed on the foundation 11. The second wooden prefabricated house 12B is placed on the foundation 11 adjacent to the first wooden prefabricated house 12A and spaced a predetermined distance apart from the first wooden prefabricated house 12A (wooden module house placing means).

[0126] When the second wooden prefabricated house 12B is placed on the foundation 11, the first side edge 52 of the orthogonal laminated floor boards 14 of the first wooden prefabricated house 12A placed on the foundation 11 and the first side edge 66 of the orthogonal laminated floor boards 14 of the second wooden prefabricated house 12B are aligned in a row in the front-to-back direction, the second side edge 53 of the orthogonal laminated floor boards 14 of the first wooden prefabricated house 12A and the second side edge 67 of the orthogonal laminated floor boards 14 of the second wooden prefabricated house 12B are aligned in a row in the front-to-back direction, and the second end edge 51 of the orthogonal laminated floor boards 14 of the first wooden prefabricated house 12A and the first end edge 64 of the orthogonal laminated floor boards 14 of the second wooden prefabricated house 12B face each other in the front-to-back direction.

[0127] Furthermore, the first side edge 48 of the orthogonal laminated ceiling board 16 of the first wooden prefabricated house 12A and the first side edge 62 of the orthogonal laminated ceiling board 16 of the second wooden prefabricated house 12B are aligned in a row in the front-to-back direction, the second side edge 49 of the orthogonal laminated ceiling board 16 of the first wooden prefabricated house 12A and the second side edge 63 of the orthogonal laminated ceiling board 16 of the second wooden prefabricated house 12B are aligned in a row in the front-to-back direction, and the second end edge 47 of the orthogonal laminated ceiling board 16 of the first wooden prefabricated house 12A and the first end edge 60 of the orthogonal laminated ceiling board 16 of the second wooden prefabricated house 12B face each other in the front-to-back direction. Furthermore, when the second wooden prefabricated house 12B is placed on the foundation 11, the widthwise distance between the end face of the second end edge portion 51 of the orthogonal laminated floor board 14 of the first wooden prefabricated house 12A and the end face of the first end edge portion 64 of the orthogonal laminated floor board 14 of the second wooden prefabricated house 12B (the distance between the second wooden prefabricated house 12B and the first wooden prefabricated house 12A) is in the range of 15 to 25 cm.

[0128] After the second wooden prefabricated house 12B is placed on the foundation 11 adjacent to the first wooden prefabricated house 12A, a ratchet-type pulling jack 70 is placed between the first hook member 54 attached to the first side edge 52 of the orthogonal laminated floor board 14 of the first wooden prefabricated house 12A and the second hook member 68 attached to the first side edge 66 of the orthogonal laminated floor board 14 of the second wooden prefabricated house 12B, and one end of a chain 71 or wire rope 71 connected to the ratchet-type pulling jack 70 is engaged (hooked) with the hook portion 55 of the first hook member 54 of the orthogonal laminated floor board 14 of the first wooden prefabricated house 12A, and the other end of the chain 71 or wire rope 71 is engaged (hooked) with the hook portion 69 of the second hook member 68 of the orthogonal laminated floor board 14 of the second wooden prefabricated house 12B.

[0129] Furthermore, a ratchet-type pulling jack 70 is placed between the first hook member 54 attached to the second side edge 53 of the orthogonal laminated floor board 14 of the first wooden prefabricated house 12A and the second hook member 68 attached to the second side edge 67 of the orthogonal laminated floor board 14 of the second wooden prefabricated house 12B, and one end of a chain 71 or wire rope 71 connected to the ratchet-type pulling jack 70 is engaged (hooked) with the hook portion 55 of the first hook member 54 of the orthogonal laminated floor board 14 of the first wooden prefabricated house 12A, and the other end of the chain 71 or wire rope 71 is engaged (hooked) with the hook portion 69 of the second hook member 68 of the orthogonal laminated floor board 14 of the second wooden prefabricated house 12B.

[0130] After the chain 71 or wire rope 71 is hooked to the hook portions 55, 70 of the first and second hook members 54, 69, the handle 72 of the ratchet pulling jack 70 is manually rotated back and forth. When the handle 72 of the ratchet pulling jack 70 is rotated back and forth, the chain 71 or wire rope 71 is gradually pulled toward the ratchet pulling jack 70, and as a result, as shown by arrow M1 in Figure 16, the first side edge 66 of the orthogonal laminated floor panel 14 of the second wooden prefabricated house 12B is gradually pulled in the width direction toward the first side edge 52 of the orthogonal laminated floor panel 14 of the first wooden prefabricated house 12A, and the second side edge 67 of the orthogonal laminated floor panel 14 of the second wooden prefabricated house 12B is gradually pulled in the width direction toward the second side edge 53 of the orthogonal laminated floor panel 14 of the first wooden prefabricated house 12A. The cross-laminated floor boards 14 of the second wooden prefabricated house 12B are pulled downwardly and slidably on the base 11 (first pulling means).

[0131] The first and second side edges 66, 67 of the orthogonal laminated floor boards 14 of the second wooden prefabricated house 12B are pulled toward the first and second side edges 52, 53 of the orthogonal laminated floor boards 14 of the first wooden prefabricated house 12A, so that the orthogonal laminated floor boards 14 of the second wooden prefabricated house 12B are connected in abutting contact with the orthogonal laminated floor boards 14 of the first wooden prefabricated house 12A, and the orthogonal laminated ceiling boards 16 of the second wooden prefabricated house 12B are connected in abutting contact with the orthogonal laminated ceiling boards 16 of the first wooden prefabricated house 12A (wooden prefabricated house connecting means).

[0132] In the first pulling means and the wooden prefabricated house connecting means, the orthogonal laminated floor boards 14 of the first wooden prefabricated house 12A and the orthogonal laminated floor boards 14 of the second wooden prefabricated house 12B abut against each other, so that the end face of the first edge portion 64 of the orthogonal laminated floor boards 14 of the second wooden prefabricated house 12B abuts against the end face of the second edge portion 51 of the orthogonal laminated floor boards 14 of the first wooden prefabricated house 12A, and the orthogonal laminated ceiling boards 16 of the first wooden prefabricated house 12A and the orthogonal laminated ceiling boards 16 of the second wooden prefabricated house 12B abut against each other, so that the end face of the first edge portion 60 of the orthogonal laminated ceiling board 16 of the second wooden prefabricated house 12B abuts against the end face of the second edge portion 47 of the orthogonal laminated ceiling board 16 of the first wooden prefabricated house 12A. The first pulling means simultaneously pulls in the first side edge 66 (one side) of the orthogonal laminated floor board 14 of the second wooden prefabricated house 12B and the second side edge 67 (the other side) of the orthogonal laminated floor board 14 of the second wooden prefabricated house 12B.

[0133] The first pulling means and the wooden prefabricated house connecting means are used to abut the end faces of the first and second edge portions 51, 65 of the orthogonal laminated floor panels 14 of the first and second wooden prefabricated houses 12A, 12B, and the end faces of the first and second edge portions 47, 60 of the orthogonal laminated ceiling panels 16 of the first and second wooden prefabricated houses 12A, 12B are abutted, and then the position of the second wooden prefabricated house 12B relative to the foundation 11 is fine-tuned in the front-to-back direction, and the orthogonal laminated floor panels 14 (CLT) of the second wooden prefabricated house 12B is connected to the foundation 11.

[0134] To connect the second wooden prefabricated house 12B to the base 11, as shown in FIG. 15, the rear surface 32 of the upper area 34 of the post-attaching connecting plate fitting 10B is overlapped with the front surface 17 of the lower area 19 of the pre-attaching connecting plate fitting 10A, and then screws 73 are driven (screwed or hammered) into each of the screw holes 38a-38c, 43a-43c in the upper area 34 and lower area 33 of the post-attaching connecting plate fitting 10B and each of the screw holes 24a-24d in the lower area 19 of the pre-attaching connecting plate fitting 10A, thereby connecting and fixing the lower area 19 of the pre-attaching connecting plate fitting 10A and the upper area 34 of the post-attaching connecting plate fitting 10B to the orthogonal laminated floor boards 14 of the second wooden prefabricated house 12B (first-story wooden prefabricated house 12B), and connecting and fixing the lower area 33 of the post-attaching connecting plate fitting 10B to the base 11 (second connecting means).

[0135] In addition, straight screws (vertical screws) and long diagonal screws (diagonal screws) are driven into the orthogonal laminated floor panels 14 and the base 11 of the second wooden prefabricated house 12B. The orthogonal laminated floor panels 14 (CLT) and the base 11 of the second wooden prefabricated house 12B are connected with pre-attached connecting plate fittings 10A and post-attached connecting plate fittings 10B, and are also connected and fixed with long vertical screws (vertical screws) and long diagonal screws (diagonal screws). Furthermore, the orthogonal laminated ceiling panels 16 of the first and second wooden prefabricated houses 12A, 12B are fixed to each other. The orthogonal laminated ceiling panels 16 of the first and second wooden prefabricated houses 12A, 12B are fixed to each other with long diagonal screws (diagonal screws).

[0136] After the orthogonal laminated floor panels 14 of the second wooden prefabricated house 12B are fixed to the foundation 11 and the orthogonal laminated ceiling panels 16 of the first and second wooden prefabricated houses 12A, 12B are fixed to each other, the switch lever of the ratchet-type pulling jack 70 is set to the reverse position and the handle 72 is manually rotated back and forth to loosen the jack 70, the chain 71 or wire rope 71 is removed from the hook portions 55, 70 of the first and second hook members 54, 69, and the first and second hook members 55, 70 are removed from the first and second side edge portions 52, 53, 67, 68 of the orthogonal laminated floor panels 14 of the first and second wooden prefabricated houses 12A, 12B.

[0137] In addition, after removing the chain 71 or wire rope 71 from the first and second hook members 55, 70 and removing the first and second hook members 55, 70 from the first and second side edge portions 52, 53, 67, 68 of the orthogonal laminated floor boards 14, the orthogonal laminated floor boards 14 of the second wooden prefabricated house 12B are fixed to the foundation 11 using the pre-attached connecting plate fittings 10A and the post-attached connecting plate fittings 10B, and the orthogonal laminated ceiling boards 16 of the first and second wooden prefabricated houses 12A, 12B are fixed to each other.

[0138] The connecting plate fittings 10 are connected and fixed to the upper area 20 of the pre-attached connecting plate fittings 10A and the lower area 33 of the post-attached connecting plate fittings 10B by driving (screwing or hammering) screws 73 into a plurality of screw holes 24a to 24d, 29a to 29e drilled in the upper area 20 and the lower area 19 of the pre-attached connecting plate fittings 10A and a plurality of screw holes 38a to 38c, 43a to 43c drilled in the upper area 34 and the lower area 33 of the post-attached connecting plate fittings 10B. At the same time, the orthogonal laminated floor panels 14 of the first and second wooden prefabricated houses 12A, 12B on the first floor are connected and fixed to the lower area 19 of the pre-attached connecting plate fittings 10A and the upper area 34 of the post-attached connecting plate fittings 10B, so all that is required is to drive screws 73 into the screw holes 24a to 24d, 29a to 29e, 38a to 38c, 43a to 43c of the pre-attached connecting plate fittings 10A and the post-attached connecting plate fittings 10B, which does not require much time or effort, and makes it possible to easily connect the base 11 laid on the rising foundation to the first and second wooden prefabricated houses 12A, 12B on the first floor erected on the base 11 in a short time.

[0139] By using a plurality of pre-attached connecting plate fittings 10A and a plurality of post-attached connecting plate fittings 10B lined up at a predetermined distance in the width direction or the front-to-rear direction, the connecting plate fittings 10 can reliably connect the base 11 laid on the foundation rise to the first and second first-floor wooden prefabricated houses 12A, 12B erected on the base 11. The connecting plate fittings 10 can significantly reduce the time required for connecting the base 11 to the first and second first-floor wooden prefabricated houses 12A, 12B, simplify the effort required for the connecting work, reduce the cost of the connecting work, and shorten the construction period for the building made of wooden prefabricated houses 12A, 12B. The connecting plate fittings 10 can be used to install the indoor and outdoor facing materials and interior and exterior materials of the wooden prefabricated houses 12A, 12B in a factory, and after the installed wooden prefabricated houses 12A, 12B are transported to the installation site, the pre-attached connecting plate fittings 10A and the post-attached connecting plate fittings 10B can be used to connect the first-story wooden prefabricated house 12A to the second-story wooden prefabricated house 12B built on top of the first-story wooden prefabricated house 12A, thereby significantly shortening the construction period on site and allowing a two-story wooden prefabricated house to be constructed on site in a short period of time.

[0140] Even if a large relative displacement (horizontal displacement, rotational displacement, compression displacement) occurs between the foundation 11 and the first and second wooden prefabricated houses 12A, 12B on the first floor due to an earthquake or the like, and external forces (bending moment, shear force) due to the relative displacement are transmitted to the first and second wooden prefabricated houses 12A, 12B on the first floor, the connection between the foundation 11 and the first and second wooden prefabricated houses 12A, 12B on the first floor, which is connected and fixed by multiple pre-attached connecting plate fittings 10A and multiple post-attached connecting plate fittings 10B, will not be released by the external force, and the connection between the foundation 11 and the first and second wooden prefabricated houses 12A, 12B on the first floor can be reliably maintained.

[0141] The method for connecting wooden prefabricated houses involves driving (screwing or hammering) screws 73 into the screw holes 29a to 29d in the upper area 20 of the pre-attached connecting plate fitting 10A to connect and fix the upper area 20 of the pre-attached connecting plate fitting 10A to the wooden wall panels 15a, 15b, 15d, and 15e of the first and second wooden prefabricated houses 12A and 12B on the first floor, and then overlapping the rear surface 32 of the upper area 34 of the post-attached connecting plate fitting 10B with the front surface 17 of the lower area 19 of the pre-attached connecting plate fitting 10A. Then, the screws 73 are driven (screwed or hammered) into the screw holes 38a to 38c, 43a to 43c in the upper area 34 and lower area 33 of the post-attached connecting plate fitting 10B and the screw holes 24a to 24d in the lower area 19 of the pre-attached connecting plate fitting 10A. The upper area 34 of the fittings 10B is connected and fixed to the orthogonal laminated floor panels 14 of the first and second wooden prefabricated houses 12A, 12B on the first floor, and the lower area 33 of the post-attached connecting plate fittings 10B is connected and fixed to the base 11. Therefore, it is only necessary to drive screws 73 into the screw holes 29a to 29d in the upper area 20 of the pre-attached connecting plate fittings 10A and into the screw holes 38a to 38c, 43a to 43c in the upper area 34 and lower area 33 of the post-attached connecting plate fittings 10B superimposed on the pre-attached connecting plate fittings 10A and the screw holes 24a to 24d in the lower area 19 of the pre-attached connecting plate fittings 10A. This does not require much time or effort, and the base 11 laid on the rising foundation and the first and second wooden prefabricated houses 12A, 12B erected on the base 11 can be easily connected in a short time.

[0142] In the method for connecting wooden prefabricated houses, the indoor and outdoor facing materials and interior and exterior materials of the wooden prefabricated houses 12A, 12B are installed in a factory, and the installed wooden prefabricated houses 12A, 12B are then transported to the installation site.After that, the first-floor wooden prefabricated house 12A can be connected to the second-floor wooden prefabricated house 12B erected on top of the first-floor wooden prefabricated house 12A using pre-attached connecting plate fittings 10A and post-attached connecting plate fittings 10B.This allows the construction period at the site to be significantly shortened, and a two-story wooden prefabricated house can be constructed at the site in a short period of time.

[0143] The wooden prefabricated house connecting method involves pulling the second first-floor wooden prefabricated house 12B toward the first first-floor wooden prefabricated house 12A, while connecting and fixing the lower area 20 of the pre-attached connecting plate fittings 10A and the upper area 34 of the post-attached connecting plate fittings 10B to the orthogonal laminated floor boards 14 of the first-floor wooden prefabricated houses 12A, 12B, and connecting and fixing the lower area 34 of the post-attached connecting plate fittings 10B to the foundation 11, thereby making it possible to create various buildings by combining multiple first and second first-floor wooden prefabricated houses 12A, 12B, and to create buildings with different floor plans and different numbers of rooms.

[0144] The wooden prefabricated house connecting method can significantly reduce the time required for connecting the foundation 11 and the first and second wooden prefabricated houses 12A, 12B on the first floor, simplify the labor required for the connecting work, reduce the cost required for the connecting work, and shorten the construction period for building a building made up of multiple wooden prefabricated houses 12A, 12B. The wooden prefabricated house connecting method can build a variety of buildings with different floor plans and different numbers of rooms in a short construction period, and can build a variety of buildings at low cost.

[0145] The wooden prefabricated house connecting method involves connecting and fixing upper areas 20 of a plurality of pre-attached connecting plate fittings 10A to wooden wall panels 15a, 15b, 15d, and 15e of first and second wooden prefabricated houses 12A and 12B on the first floor, with the pre-attached connecting plate fittings 10A spaced apart at a predetermined distance in the width direction or the front-to-rear direction, and connecting and fixing lower areas 19 of the pre-attached connecting plate fittings 10A and upper areas 34 of the post-attached connecting plate fittings 10B to orthogonal laminated floor panels 14 of the first and second wooden prefabricated houses 12A and 12B on the first floor, with the post-attached connecting plate fittings 10B spaced apart at a predetermined distance in the width direction or the front-to-rear direction. Since A33 is connected and fixed to the base 11, even if a large relative displacement (horizontal displacement, rotational displacement, compression displacement) occurs between the base 11 and the first and second wooden prefabricated houses 12A, 12B on the first floor due to an earthquake or the like, and an external force (bending moment, shear force) due to the relative displacement is transmitted from the base 11 to the first and second wooden prefabricated houses 12A, 12B on the first floor, the connection between the base 11 and the first and second wooden prefabricated houses 12A, 12B on the first floor, which is connected and fixed by multiple pre-attached connecting plate fittings 10A and multiple post-attached connecting plate fittings 10B, will not be released by the external force, and the connection between the base 11 and the first and second wooden prefabricated houses 12A, 12B on the first floor can be reliably maintained.

[0146] Fig. 18 is a partially enlarged view illustrating another example of the second connecting means in the wooden prefabricated house connecting method, and Fig. 19 is a side view of the wooden prefabricated houses 12A, 12B, 13A, and 13B illustrating an example of the second pulling means for pulling the second wooden prefabricated house 13B on the second floor. Fig. 20 is a side view of the wooden prefabricated houses 12A, 12B, 13A, and 13B illustrating the second pulling means, continuing from Fig. 19. Fig. 19 shows the first and second wooden prefabricated houses 13A and 13B on the second floor placed on the first and second wooden prefabricated houses 12A and 12B on the first floor. Figs. 18 to 20 schematically illustrate the wooden prefabricated houses 12A, 12B, 13A, and 13B of Figs. 8 and 11.

[0147] The second-floor first wooden prefabricated house 13A shown in Figure 8 is transported to the installation site by a transport vehicle (transportation means), lifted from the transport vehicle by a crane (not shown), and placed on the first-floor first wooden prefabricated house 12A (cross-laminated ceiling panels 16) connected to the foundation 11. After the second-floor first wooden prefabricated house 13A is placed on the first-floor first wooden prefabricated house 12A, the position of the second-floor first wooden prefabricated house 13A relative to the first-floor first wooden prefabricated house 12A is fine-tuned in the front-to-back and width directions, and the cross-laminated floor panels 14 (CLT) of the second-floor first wooden prefabricated house 13A are connected to the cross-laminated ceiling panels 14 (CLT) of the first-floor first wooden prefabricated house 12A.

[0148] When connecting the first wooden prefabricated house 12A (orthogonal laminated ceiling board 16) on the first floor to the first wooden prefabricated house 13A (orthogonal laminated floor board 14) on the second floor, the rear surface 32 of the upper area 34 of the post-attached connecting plate fitting 10B is overlapped with the front surface 17 of the lower area 19 of the pre-attached connecting plate fitting 10A, and then the bead holes 38a to 38c, 43a to 43c of the upper area 34 and the lower area 33 of the post-attached connecting plate fitting 10B are aligned with the pre-attached connecting plate fitting 10A. Screws 73 are driven (screwed or hammered) into the screw holes 24a to 24d in the lower area 19 of A to connect and fix the lower area 19 of the pre-attached connecting plate fitting 10A and the upper area 34 of the post-attached connecting plate fitting 10B to the orthogonal laminated floor board 14 of the first wooden prefabricated house 13A on the second floor, and connect and fix the lower area 33 of the post-attached connecting plate fitting 10B to the orthogonal laminated ceiling board 16 of the first wooden prefabricated house 12A on the first floor (second connecting means).

[0149] Furthermore, straight screws (vertical screws) and long diagonal screws (diagonal screws) are driven into the orthogonal laminated ceiling boards 16 of the first wooden prefabricated house 12A on the first floor and the orthogonal laminated floor boards 14 of the first wooden prefabricated house 13A on the second floor. The orthogonal laminated ceiling boards 16 (CLT) of the first wooden prefabricated house 12A on the first floor and the orthogonal laminated floor boards 14 (CLT) of the first wooden prefabricated house 13A on the second floor are connected by pre-attached connecting plate fittings 10A and post-attached connecting plate fittings 10B, and are also connected and fixed by long vertical screws (vertical screws) and long diagonal screws (diagonal screws).

[0150] Next, the second two-story wooden prefabricated house 13B shown in Figure 11, which has been assembled in a factory and has a plurality of pre-attached connecting plate fittings 10A attached, is transported to the installation site by a transport vehicle (transport means), and then the wooden prefabricated house 13B is lifted from the transport vehicle by a crane and placed on top of the second first-floor wooden prefabricated house 12A. The second second wooden prefabricated house 13B on the second floor is placed on top of the second first wooden prefabricated house 12B on the first floor, adjacent to the first second-floor wooden prefabricated house 12B and spaced a predetermined distance apart from the first second-floor wooden prefabricated house 13A (wooden unit house placement means).

[0151] When the second wooden prefabricated house 13B on the second floor is placed on top of the second wooden prefabricated house 12B on the first floor, the first side edge 66 of the orthogonal laminated floor boards 14 of the first wooden prefabricated house 13A on the second floor and the first side edge 66 of the orthogonal laminated floor boards 14 of the second wooden prefabricated house 13B on the second floor are aligned in a line in the front-to-back direction, the second side edge 67 of the orthogonal laminated floor boards 14 of the first wooden prefabricated house 13A on the second floor and the second side edge 67 of the orthogonal laminated floor boards 14 of the second wooden prefabricated house 13B on the second floor are aligned in a line in the front-to-back direction, and the second end edge 51 of the orthogonal laminated floor boards 14 of the first wooden prefabricated house 13A on the second floor and the first end edge 64 of the orthogonal laminated floor boards 14 of the second wooden prefabricated house 13B on the second floor face each other in the front-to-back direction.

[0152] Furthermore, the first side edge 48 of the orthogonal laminated ceiling panel 16 of the first wooden prefabricated house 13A on the second floor and the first side edge 62 of the orthogonal laminated ceiling panel 16 of the second wooden prefabricated house 13B on the second floor are aligned in a row in the front-to-back direction, the second side edge 49 of the orthogonal laminated ceiling panel 16 of the first wooden prefabricated house 13A on the second floor and the second side edge 63 of the orthogonal laminated ceiling panel 16 of the second wooden prefabricated house 13B on the second floor are aligned in a row in the front-to-back direction, and the second end edge 47 of the orthogonal laminated ceiling panel 16 of the first wooden prefabricated house 13A on the second floor and the first end edge 60 of the orthogonal laminated ceiling panel 16 of the second wooden prefabricated house 13B on the second floor face each other in the front-to-back direction.

[0153] Furthermore, when the second wooden prefabricated house 13B on the second floor is placed on top of the second wooden prefabricated house 12B on the first floor, the widthwise distance between the end face of the second end edge portion 47 of the orthogonal laminated floor board 14 of the first wooden prefabricated house 13A on the second floor and the end face of the first end edge portion 60 of the orthogonal laminated floor board 14 of the second wooden prefabricated house 13B on the second floor (the distance between the second wooden prefabricated house 13B and the first wooden prefabricated house 13A) is in the range of 15 to 25 cm.

[0154] After the second wooden prefabricated house 13B on the second floor is placed on the second wooden prefabricated house 12B on the first floor adjacent to the first wooden prefabricated house 13A on the second floor, a ratchet-type pulling jack 70 is placed between the first hook member 54 attached to the first side edge 52 of the orthogonal laminated floor panel 14 of the first wooden prefabricated house 13A on the second floor and the second hook member 68 attached to the first side edge 66 of the orthogonal laminated floor panel 14 of the second wooden prefabricated house 13B on the second floor. One end of the chain 71 or wire rope 71 connected to the ratchet-type pulling jack 70 is engaged (hooked) with the hook portion 55 of the first hook member 54 of the orthogonal laminated floor board 14 of the first wooden prefabricated house 13A on the second floor, and the other end of the chain 71 or wire rope 71 is engaged (hooked) with the hook portion 69 of the second hook member 68 of the orthogonal laminated floor board 14 of the second wooden prefabricated house 13B on the second floor.

[0155] Furthermore, a ratchet-type pulling jack 70 is placed between the first hook member 54 attached to the second side edge 53 of the orthogonal laminated floor panel 14 of the first wooden prefabricated house 13A on the second floor and the second hook member 68 attached to the second side edge 67 of the orthogonal laminated floor panel 14 of the second wooden prefabricated house 13B on the second floor, and one end of a chain 71 or wire rope 71 connected to the ratchet-type pulling jack 70 is engaged (hooked) with the hook portion 55 of the first hook member 54 of the orthogonal laminated floor panel 14 of the first wooden prefabricated house 13A on the second floor, and the other end of the chain 71 or wire rope 71 is engaged (hooked) with the hook portion 69 of the second hook member 68 of the orthogonal laminated floor panel 14 of the second wooden prefabricated house 13B on the second floor.

[0156] After the chain 71 or wire rope 71 is hooked to the hook portions 55, 70 of the first and second hook members 54, 69, the handle 72 of the ratchet pulling jack 70 is manually rotated back and forth. When the handle 72 of the ratchet pulling jack 70 is rotated back and forth, the chain 71 or wire rope 71 is gradually pulled toward the ratchet pulling jack 70, and as a result, as shown by arrow M1 in Figure 19, the first side edge 66 of the orthogonal laminated floor panel 14 of the second wooden prefabricated house 13B on the second floor is gradually pulled in the width direction toward the first side edge 52 of the orthogonal laminated floor panel 14 of the first wooden prefabricated house 13A on the second floor, and the second side edge 63 of the orthogonal laminated floor panel 14 of the second wooden prefabricated house 13B on the second floor is gradually pulled in the width direction toward the second side edge 53 of the orthogonal laminated floor panel 14 of the first wooden prefabricated house 13A on the second floor. The cross-laminated floor boards 14 of the second wooden prefabricated house 13B on the second floor are pulled downwardly and slidably over the second wooden prefabricated house 12B on the first floor (second pulling means).

[0157] As the first and second side edges 67, 68 of the orthogonal laminated floor boards 14 of the second wooden prefabricated house 13B on the second floor are pulled toward the first and second side edges 67, 68 of the orthogonal laminated floor boards 14 of the first wooden prefabricated house 13A on the second floor, the orthogonal laminated floor boards 14 of the second wooden prefabricated house 13B on the second floor are connected in abutting contact with the orthogonal laminated floor boards 14 of the first wooden prefabricated house 13A on the second floor, and the orthogonal laminated ceiling boards 16 of the second wooden prefabricated house 13B on the second floor are connected in abutting contact with the orthogonal laminated ceiling boards 16 of the first wooden prefabricated house 13A on the second floor (wooden prefabricated house connecting means).

[0158] In the wooden prefabricated house connecting means, the orthogonal laminated floor boards 14 of the first wooden prefabricated house 13A on the second floor and the orthogonal laminated floor boards 14 of the second wooden prefabricated house 13B on the second floor abut against each other, so that the end face of the first edge portion 64 of the orthogonal laminated floor boards 14 of the second wooden prefabricated house 13B on the second floor abuts against the end face of the second edge portion 51 of the orthogonal laminated floor boards 14 of the first wooden prefabricated house 13A on the second floor, and the orthogonal laminated ceiling boards 16 of the first wooden prefabricated house 13A on the second floor abut against the end face of the first edge portion 60 of the orthogonal laminated ceiling board 16 of the second wooden prefabricated house 13B on the second floor abuts against the end face of the second edge portion 47 of the orthogonal laminated ceiling board 16 of the first wooden prefabricated house 13A on the second floor. The second pulling means simultaneously pulls in the first side edge 66 (one side) of the orthogonal laminated floor board 14 of the second wooden prefabricated house 13B on the second floor and the second side edge 67 (the other side) of the orthogonal laminated floor board 14 of the second wooden prefabricated house 13B on the second floor.

[0159] The second pulling means and wooden prefabricated house connecting means are used to abut the end faces of the first and second edge portions 51, 65 of the orthogonal laminated floor panels 14 of the first and second wooden prefabricated houses 13A, 13B on the second floor, and the end faces of the first and second edge portions 47, 61 of the orthogonal laminated ceiling panels 16 of the first and second wooden prefabricated houses 13A, 13B on the second floor are abutted, and then the position of the second wooden prefabricated house 13B on the second floor relative to the second wooden prefabricated house 12B on the first floor is fine-tuned in the front-to-back direction, and the orthogonal laminated floor panels 14 (CLT) of the second wooden prefabricated house 13B on the second floor are connected to the orthogonal laminated ceiling panels 16 (CLT) of the second wooden prefabricated house 12B on the first floor.

[0160] When connecting the second wooden prefabricated house 13B on the second floor to the second wooden prefabricated house 12B on the first floor, as shown in FIG. 19, the rear surface 32 of the upper area 34 of the post-attached connecting plate fitting 10B is overlapped with the front surface 17 of the lower area 19 of the pre-attached connecting plate fitting 10A, and then the bead holes 38a to 38c, 43a to 43c of the upper area 34 and lower area 33 of the post-attached connecting plate fitting 10B are aligned with the lower edge of the pre-attached connecting plate fitting 10A. Screws 73 are driven (screwed or hammered) into the screw holes 24a to 24d of the rear 19 to connect and fix the lower area 19 of the pre-attached connecting plate fitting 10A and the upper area 34 of the post-attached connecting plate fitting 10A to the orthogonal laminated floor board 14 of the second wooden prefabricated house 13B on the second floor, and the lower area 33 of the post-attached connecting plate fitting 10B to the orthogonal laminated ceiling board 16 of the second wooden prefabricated house 12B on the first floor (second connecting means).

[0161] In addition, straight screws (vertical screws) and long diagonal screws (diagonal screws) are driven into the cross-laminated floor boards 14 of the second wooden prefabricated house 13B on the second floor and the cross-laminated ceiling boards 16 of the second wooden prefabricated house 12B on the first floor. The cross-laminated floor boards 14 (CLT) of the second wooden prefabricated house 13B on the second floor and the cross-laminated ceiling boards 16 (CLT) of the second wooden prefabricated house 12B on the first floor are connected with pre-attached connecting plate fittings 10A and post-attached connecting plate fittings 10B, and are also connected and fixed with long vertical screws (vertical screws) and long diagonal screws (diagonal screws). Furthermore, the cross-laminated ceiling boards 16 of the first and second wooden prefabricated houses 13A and 13B on the second floor are fixed to each other. The cross-laminated ceiling boards 16 of the first and second wooden prefabricated houses 13A and 13B on the second floor are fixed to each other with long diagonal screws (diagonal screws).

[0162] The orthogonal laminated floor panels 14 of the second wooden prefabricated house 13B on the second floor are fixed to the orthogonal laminated ceiling panels 16 of the second wooden prefabricated house 12B on the first floor, and the orthogonal laminated ceiling panels 16 of the first and second wooden prefabricated houses 13A, 13B on the second floor are fixed together. Then, the switch lever of the ratchet-type pulling jack 70 is set to the reverse position, and the handle 72 is manually rotated back and forth to loosen the jack 70. The chain 71 or wire rope 71 is removed from the hook portions 55, 70 of the first and second hook members 54, 69, and the first and second hook members 54, 69 are removed from the first and second side edge portions 52, 53, 67, 68 of the orthogonal laminated floor panels 14 of the first and second wooden prefabricated houses 13A, 13B on the second floor. In addition, after removing the chain 71 or wire rope 71 from the first and second hook members 54, 69 and removing the first and second hook members 54, 69 from the first and second side edge portions 52, 53, 67, 68 of the orthogonal laminated floor board 14, the orthogonal laminated floor board 14 of the second wooden prefabricated house 13B on the second floor can be fixed to the orthogonal laminated ceiling board 16 of the second wooden prefabricated house 12B on the first floor using the pre-attached connecting plate fittings 10A and the post-attached connecting plate fittings 10B, and the orthogonal laminated ceiling boards 16 of the first and second wooden prefabricated houses 13A, 13B on the second floor can be fixed to each other.

[0163] In Figures 18 to 20, an example has been described in which the first and second wooden prefabricated houses 12A, 12B on the first floor are connected to the first and second wooden prefabricated houses 13A, 13B on the second floor, but the connecting plate fittings 10 and the wooden prefabricated house connecting method can connect three or more first to nth wooden prefabricated houses on the first floor to three or more first to nth wooden prefabricated houses on the second floor.

[0164] The connecting plate fittings 10 are configured such that the wooden wall panels 15a, 15b, 15d, 15e of the first and second wooden prefabricated houses 13A, 13B on the second floor are connected and fixed to the upper area 20 of the prefabricated connecting plate fittings 10A, and the orthogonal laminated ceiling panels 16 of the first and second wooden prefabricated houses 12A, 12B on the first floor are connected and fixed to the lower area 33 of the postfabricated connecting plate fittings 10B, and the connecting plate fittings 10 are configured such that the wooden wall panels 15a, 15b, 15d, 15e of the first and second wooden prefabricated houses 13A, 13B on the second floor are connected and fixed to the lower area 33 of the postfabricated connecting plate fittings 10B, and the orthogonal laminated ceiling panels 16 of the first and second wooden prefabricated houses 12A, 12B on the first floor are connected and fixed to the lower area 33 of the postfabricated connecting plate fittings 10B. Since the orthogonal laminated floor panels 14 of A, 13B are connected and fixed to the lower area 19 of the pre-attached connecting plate fittings 10A and the upper area 34 of the post-attached connecting plate fittings 10B, it is only necessary to drive screws 73 into the screw holes 24a-24d, 29a-29e, 38a-38c, 43a-43c of the pre-attached connecting plate fittings 10A and the post-attached connecting plate fittings 10B, it is possible to easily connect the first wooden prefabricated house 12A on the first floor and the first wooden prefabricated house 13A on the second floor built on the first wooden prefabricated house 12A on the first floor in a short time without requiring much effort or time, and it is also possible to easily connect the second wooden prefabricated house 12B on the first floor and the second wooden prefabricated house 13B on the second floor built on the second wooden prefabricated house 12B on the first floor in a short time.

[0165] By utilizing a plurality of pre-attached connecting plate fittings 10A and a plurality of post-attached connecting plate fittings 10B arranged at a predetermined distance in the width direction or the front-to-rear direction, the connecting plate fittings 10 can reliably connect a first wooden prefabricated house 12A on the first floor to a first wooden prefabricated house 13A on the second floor erected on top of the first wooden prefabricated house 12A on the first floor, and can reliably connect a second wooden prefabricated house 12B on the first floor to a second wooden prefabricated house 13B on the second floor erected on top of the second wooden prefabricated house 12B on the first floor. The connecting plate fittings 10 can significantly reduce the time required for connecting the first wooden prefabricated house 12A on the first floor to the first wooden prefabricated house 13A on the second floor, and the time required for connecting the second wooden prefabricated house 12B on the first floor to the second wooden prefabricated house 13B on the second floor, thereby simplifying the effort required for the connecting work and reducing the cost of the connecting work, thereby shortening the construction period for building a two-story building made up of multiple wooden prefabricated houses 12A, 12B, 13A, and 13B.

[0166] Even if a large relative displacement (horizontal displacement, rotational displacement, compressive displacement) occurs between the first and second wooden prefabricated houses 12A, 12A on the first floor and the first and second wooden prefabricated houses 13B, 13B on the second floor due to an earthquake or the like, and external forces (bending moment, shear force) due to the relative displacement are transmitted from the foundation 11 to the wooden prefabricated houses 12A, 12B, 13A, 13B, the connection between the first and second wooden prefabricated houses 12A, 12B on the first floor and the first and second wooden prefabricated houses 13A, 13B on the second floor, which are connected and fixed by the multiple pre-attached connecting plate fittings 10A and the multiple post-attached connecting plate fittings 10B, will not be released by the external force, and the connection between the first wooden prefabricated house 12A on the first floor and the first wooden prefabricated house 13A on the second floor can be reliably maintained, and the connection between the second wooden prefabricated house 13B on the first floor and the second wooden prefabricated house 13B on the second floor can be reliably maintained.

[0167] The method for connecting wooden prefabricated houses involves driving (threading or driving) screws 73 into the screw holes 29a to 29e in the upper area 20 of the pre-attached connecting plate fitting 10A, connecting and fixing the upper area 20 of the pre-attached connecting plate fitting 10A to the wooden wall panels 15a, 15b, 15d, and 15e of the first and second prefabricated wooden houses 13A and 13B on the second floor, and then overlapping the rear surface 32 of the upper area 34 of the post-attached connecting plate fitting 10B with the front surface 17 of the lower area 19 of the pre-attached connecting plate fitting 10A. After joining them together, screws 74 are driven (screwed or hammered) into the screw holes 38a to 38c, 43a to 43c in the upper area 34 and lower area 33 of the post-attachment connecting plate fitting 10B and the screw holes 24a to 24d in the lower area 19 of the pre-attachment connecting plate fitting 10A, thereby connecting and fixing the lower area 19 of the pre-attachment connecting plate fitting 10A and the upper area 34 of the post-attachment connecting plate fitting 10B to the orthogonal laminated floor boards 14 of the first and second wooden prefabricated houses 13A and 13B on the second floor. Also, since the lower area 33 of the post-attachment connecting plate fitting 10B is connected and fixed to the orthogonal laminated ceiling board 16 of the first and second wooden prefabricated houses 12A, 12B on the first floor, screws 73 are driven into the screw holes 29a to 29e of the upper area 20 of the pre-attachment connecting plate fitting 10A, and the screw holes 38a to 38c, 43a to 43c of the upper area 34 and lower area 33 of the pre-attachment connecting plate fitting 10B overlapping the pre-attachment connecting plate fitting 10A are driven into the screw holes 29a to 29e of the upper area 20 of the pre-attachment connecting plate fitting 10A. All that is required is to drive screws 73 into the screw holes 24a to 24d in the side area 19, which does not require much time or effort, and the first wooden prefabricated house 12A on the first floor and the first wooden prefabricated house 13A on the second floor built on top of the first wooden prefabricated house 12A on the first floor can be easily connected in a short time, and the second wooden prefabricated house 12B on the first floor and the second wooden prefabricated house 13B on the second floor built on top of the second wooden prefabricated house 12B on the first floor can be easily connected in a short time.

[0168] The wooden prefabricated house connecting method involves pulling the second wooden prefabricated house 13B on the second floor toward the first wooden prefabricated house 12B on the second floor, while connecting and fixing the lower area 19 of the pre-attached connecting plate fitting 10A and the upper area 34 of the post-attached connecting plate fitting 10B to the orthogonal laminated floor board 14 of the second wooden prefabricated house 13B on the second floor, and connecting and fixing the lower area 33 of the post-attached connecting plate fitting 10B to the orthogonal laminated ceiling board 16 of the second wooden prefabricated house 12B on the first floor, thereby making it possible to create various two-story buildings by combining multiple first-story wooden prefabricated houses 12A, 12B, and two-story buildings with different floor plans and different numbers of rooms can be created.

[0169] The wooden prefabricated house connecting method can significantly reduce the time required for connecting the first and second wooden prefabricated houses 12A, 12B on the first floor and the first and second wooden prefabricated houses 13A, 13B on the second floor, simplify the labor required for the connecting work, reduce the cost required for the connecting work, and shorten the construction period for building a two-story building made up of multiple wooden prefabricated houses 12A, 12B, 13A, 13B. The wooden prefabricated house connecting method can build a variety of two-story buildings with different floor plans and different numbers of rooms in a short construction period, and can build a variety of two-story buildings at low cost.

[0170] In the wooden prefabricated house connecting method, with a plurality of pre-attached connecting plate fittings 10A spaced apart at a predetermined distance in the width direction or the front-to-rear direction, the upper areas 20 of these pre-attached connecting plate fittings 10A are connected and fixed to the wooden wall panels 15a, 15b, 15d, 15e of the first and second wooden prefabricated houses 13A, 13B on the second floor, and with a plurality of post-attached connecting plate fittings 10B spaced apart at a predetermined distance in the width direction or the front-to-rear direction, the lower areas 19 of these pre-attached connecting plate fittings 10A and the upper areas 34 of these post-attached connecting plate fittings 10B are connected and fixed to the orthogonal laminated floor panels 14 of the first and second wooden prefabricated houses 13A, 13B on the second floor, and the lower areas 33 of these post-attached connecting plate fittings 10B are connected and fixed to the orthogonal laminated ceiling panels 16 of the first and second wooden prefabricated houses 12A, 12B on the first floor. As a result, even if a large relative displacement (horizontal displacement, rotational displacement, compressive displacement) occurs between the first and second wooden prefabricated houses 12A, 12B on the first floor and the first and second wooden prefabricated houses 13A, 13B on the second floor, and external forces (bending moment, shear force) due to the relative displacement are transmitted to the first and second wooden prefabricated houses 12A, 12B on the first floor and the first and second wooden prefabricated houses 13A, 13B on the second floor, the connection between the first and second wooden prefabricated houses 12A, 12B on the first floor and the first and second wooden prefabricated houses 13A, 13B on the second floor, which is connected and fixed by a plurality of pre-attached connecting plate fittings 10A and a plurality of post-attached connecting plate fittings 10B, will not be released by the external force, and the connection between the first and second wooden prefabricated houses 12A, 12B on the first floor and the first and second wooden prefabricated houses 13A, 13B on the second floor can be reliably maintained. [Explanation of symbols]

[0171] 10 Connecting plate fittings 10A Pre-attached connecting plate fittings 10B Retrofit connecting plate bracket 11 Foundation 12A First floor wooden frame house 12B Second wooden frame house with one floor 13A First wooden frame house on two floors 13B Second wooden frame house, two stories 14 Cross-laminated floor board 15a~15e Wooden wall panels 16 Orthogonal laminated ceiling board 17 Front 18 Rear 19 Lower Area 20 Upper Area 21 Side edge 22 Side edge 23 Lower edge 24a 1st row screw holes 24b 2nd row screw hole 24c 3rd row screw hole 24d 4th row screw hole 25 Screw hole periphery 26 Side edge 27 Side edge 28 Upper edge 29a 1st row screw hole 29b Second row screw holes 29c 3rd row screw hole 29d 4th row screw holes 29e 5th row screw hole 30 Screw hole periphery 31 Front 32 Rear 33 Lower Area 34 Upper Area 35 Side edge 36 Side edge 37 Lower edge 38a 1st row screw holes 38b Second row screw holes 38c 3rd row screw hole 39 Screw hole periphery 40 Side edge 41 Side edge 42 Upper edge 43a 1st row screw holes 43b 2nd row screw hole 43c 3rd row screw hole 44 Screw hole periphery 45 Screw holes or blind holes 46 First edge 47 Second edge 48 First side edge 49 Second side edge 50 First edge 51 Second edge 52 First side edge 53 Second side edge 54 First hook member 55 Hook part 56 Upper end 57 Lower end 58 Side edge 59 Side edge 60 First edge 61 Second edge 62 First side edge 63 Second side edge 64 First edge 65 Second edge 66 First side edge 67 Second side edge 68 Second hook member 69 Hook part 70 Ratchet Pulling Jack 70 (Pulling Jack) 71 Chain or wire rope 72 Handle 73 Bis

Claims

1. A connecting plate metal fitting for connecting a base laid on a foundation rise to a first-floor wooden prefabricated house erected on the base, or for connecting the first-floor wooden prefabricated house to a second-floor wooden prefabricated house erected on the first-floor wooden prefabricated house, The connecting plate fittings are formed from pre-attached connecting plate fittings that are fixed from directly above the foundation to the cross-laminated floor boards of the first-floor wooden prefabricated house and wooden wall panels made from two-by-four lumber of the first-floor wooden prefabricated house, or from directly above the cross-laminated ceiling boards of the first-floor wooden prefabricated house to the cross-laminated floor boards of the second-floor wooden prefabricated house and wooden wall panels made from two-by-four lumber of the second-floor wooden prefabricated house, and post-attached connecting plate fittings that are fixed to the foundation and the cross-laminated floor boards of the first-floor wooden prefabricated house, or to the cross-laminated ceiling boards of the first-floor wooden prefabricated house and the cross-laminated floor boards of the second-floor wooden prefabricated house, The pre-attached connecting plate metal fittings have a front surface of a predetermined area and a rear surface of a predetermined area, a lower area fixed from directly above the foundation to the cross-laminated floor board of the first floor wooden prefabricated house or the cross-laminated floor board of the second floor wooden prefabricated house, and an upper area fixed to the wooden wall panel of the first floor wooden prefabricated house or the wooden wall panel of the second floor wooden prefabricated house, and the post-attached connecting plate metal fittings have a front surface of a predetermined area and a rear surface of a predetermined area and the cross-laminated floor board of the foundation or the cross-laminated floor board of the first floor wooden prefabricated house It has a lower area that is fixed to the ceiling board, and an upper area that is fixed to the orthogonal laminated floor board of the first floor wooden prefabricated house or the orthogonal laminated floor board of the second floor wooden prefabricated house with the rear surface overlapping the front surface of the lower area of ​​the pre-attached connecting plate fitting, and a plurality of screw holes arranged at predetermined intervals in the vertical and width directions are drilled in the lower area and upper area of ​​the pre-attached connecting plate fitting, and are drilled in the lower area and upper area of ​​the post-attached connecting plate fitting, In the connecting plate fittings, when the rear surface of the upper area of ​​the post-attaching connecting plate fitting overlaps the front surface of the lower area of ​​the pre-attaching connecting plate fitting, a plurality of screw holes drilled in the lower area of ​​the pre-attaching connecting plate fitting overlap with a plurality of screw holes drilled in the upper area of ​​the post-attaching connecting plate fitting, and screws are driven into the screw holes, thereby connecting and fixing the wooden wall panel of the first-floor prefabricated wooden house or the wooden wall panel of the second-floor prefabricated wooden house to the upper area of ​​the pre-attaching connecting plate fitting, connecting and fixing the foundation or the orthogonal laminated ceiling panel of the first-floor prefabricated wooden house to the lower area of ​​the post-attaching connecting plate fitting, and connecting and fixing the orthogonal laminated floor panel of the first-floor prefabricated wooden house or the orthogonal laminated floor panel of the second-floor wooden prefabricated house to the lower area of ​​the pre-attaching connecting plate fitting and the upper area of ​​the post-attaching connecting plate fitting.

2. 2. The connecting plate fitting according to claim 1, wherein a plurality of the pre-attached connecting plate fittings and a plurality of the post-attached connecting plate fittings are arranged at a predetermined interval in the width direction or the front-to-rear direction, and the wooden wall panels of the first-floor prefabricated wooden house or the wooden wall panels of the second-floor prefabricated wooden house are connected and fixed to the upper areas of the plurality of pre-attached connecting plate fittings, the base or the orthogonal laminated ceiling board of the first-floor prefabricated wooden house is connected and fixed to the lower areas of the plurality of post-attached connecting plate fittings, and the orthogonal laminated floor boards of the first-floor wooden prefabricated house or the orthogonal laminated floor boards of the second-floor wooden prefabricated house are connected and fixed to the lower areas of the plurality of pre-attached connecting plate fittings and the upper areas of the plurality of post-attached connecting plate fittings.

3. 3. The connecting plate fitting according to claim 1, wherein the screw hole peripheral portions surrounding the peripheries of the screw holes drilled in the upper area of ​​the pre-attached connecting plate fitting are recessed from the front surface toward the rear surface of the pre-attached connecting plate fitting, and the screw hole peripheral portions surrounding the peripheries of the screw holes drilled in the upper area and lower rear of the post-attached connecting plate fitting are recessed from the front surface toward the rear surface of the post-attached connecting plate fitting.

4. 4. A connecting plate fitting according to claim 1, wherein the upper area of ​​the pre-attached connecting plate fitting is tapered from below to above, so that the area of ​​the upper area of ​​the pre-attached connecting plate fitting gradually decreases from below to above the upper area, and the upper area of ​​the post-attached connecting plate fitting is tapered from below to above, so that the area of ​​the upper area of ​​the post-attached connecting plate fitting gradually decreases from below to above the upper area.

5. 5. A connecting plate fitting according to claim 4, wherein one side edge extending in the vertical direction of the upper area of ​​the pre-attached connecting plate fitting is inclined at an upward gradient so as to gradually approach the other side edge extending in the vertical direction of the upper area as it extends from below to above the upper area, the other side edge extending in the vertical direction of the upper area of ​​the pre-attached connecting plate fitting is inclined at an upward gradient so as to gradually approach the one side edge extending in the vertical direction of the upper area as it extends from below to above the upper area, and the other side edge extending in the vertical direction of the upper area of ​​the post-attached connecting plate fitting is inclined at an upward gradient so as to gradually approach the one side edge extending in the vertical direction of the upper area as it extends from below to above the upper area.

6. The connecting plate fitting according to claim 4, wherein the lower area of ​​the retrofit connecting plate fitting is tapered from above to below, and the area of ​​the lower area of ​​the retrofit connecting plate fitting gradually decreases from above to below the lower area.

7. The connecting plate fitting according to claim 6, wherein one side edge extending in the vertical direction of the lower area of ​​the retrofit connecting plate fitting is inclined downward so as to gradually approach the other side edge extending in the vertical direction of the lower area as it extends from above to below the lower area.

8. A method for connecting wooden prefabricated houses, using connecting plate metal fittings, to connect a base laid on a foundation rise to a first-floor wooden prefabricated house built on the base, or to connect the first-floor wooden prefabricated house to a second-floor wooden prefabricated house built on the first-floor wooden prefabricated house, The connecting plate fittings are formed from pre-attached connecting plate fittings that are fixed from directly above the foundation to the cross-laminated floor boards of the first-floor wooden prefabricated house and wooden wall panels made from two-by-four lumber of the first-floor wooden prefabricated house, or from directly above the cross-laminated ceiling boards of the first-floor wooden prefabricated house to the cross-laminated floor boards of the second-floor wooden prefabricated house and wooden wall panels made from two-by-four lumber of the second-floor wooden prefabricated house, and post-attached connecting plate fittings that are fixed to the foundation and the cross-laminated floor boards of the first-floor wooden prefabricated house, or to the cross-laminated ceiling boards of the first-floor wooden prefabricated house and the cross-laminated floor boards of the second-floor wooden prefabricated house, The pre-attached connecting plate metal fittings have a front surface of a predetermined area and a rear surface of a predetermined area, a lower area fixed from directly above the foundation to the cross-laminated floor board of the first floor wooden prefabricated house or the cross-laminated floor board of the second floor wooden prefabricated house, and an upper area fixed to the wooden wall panel of the first floor wooden prefabricated house or the wooden wall panel of the second floor wooden prefabricated house, and the post-attached connecting plate metal fittings have a front surface of a predetermined area and a rear surface of a predetermined area and the cross-laminated floor board of the foundation or the cross-laminated floor board of the first floor wooden prefabricated house It has a lower area that is fixed to the ceiling board, and an upper area that is fixed to the orthogonal laminated floor board of the first floor wooden prefabricated house or the orthogonal laminated floor board of the second floor wooden prefabricated house with the rear surface overlapping the front surface of the lower area of ​​the pre-attached connecting plate fitting, and a plurality of screw holes arranged at predetermined intervals in the vertical and width directions are drilled in the lower area and upper area of ​​the pre-attached connecting plate fitting, and are drilled in the lower area and upper area of ​​the post-attached connecting plate fitting, the method for connecting wooden prefabricated houses comprises: a first connecting means for driving screws into screw holes in the upper areas of the pre-attached connecting plate fittings to connect and fix the upper areas of the pre-attached connecting plate fittings to wooden wall panels of the first-floor prefabricated house or wooden wall panels of the second-floor prefabricated house; and a second connecting means for overlapping the rear surface of the upper area of ​​the post-attached connecting plate fittings with the front surface of the lower area of ​​the pre-attached connecting plate fittings, and then driving screws into screw holes in the upper and lower areas of the post-attached connecting plate fittings and screw holes in the lower area of ​​the pre-attached connecting plate fittings to connect and fix the lower areas of the pre-attached connecting plate fittings and the upper area of ​​the post-attached connecting plate fittings to the orthogonal laminated floor boards of the first-floor prefabricated house or the orthogonal laminated floor boards of the second-floor wooden prefabricated house, and connecting and fix the lower areas of the post-attached connecting plate fittings to the foundation or the orthogonal laminated ceiling boards of the first-floor wooden prefabricated house.

9. 9. The wooden prefabricated house connecting method according to claim 8, wherein the first connecting means connects and fixes upper areas of the plurality of pre-attached connecting plate fittings to the wooden wall panels of the first-floor wooden prefabricated house or the wooden wall panels of the second-floor wooden prefabricated house while the plurality of pre-attached connecting plate fittings are spaced a predetermined distance apart in the width direction or the front-to-rear direction, and the second connecting means connects and fixes lower areas of the plurality of pre-attached connecting plate fittings and upper areas of the plurality of post-attached connecting plate fittings to the orthogonal laminated floor boards of the first-floor wooden prefabricated house or the orthogonal laminated floor boards of the second-floor wooden prefabricated house while the plurality of post-attached connecting plate fittings are spaced a predetermined distance apart in the width direction or the front-to-rear direction, and connects and fixes lower areas of the plurality of post-attached connecting plate fittings to the foundation or the orthogonal laminated ceiling boards of the first-floor wooden prefabricated house.

10. 10. The wooden prefabricated house connecting method according to claim 8 or claim 9, wherein the first floor wooden prefabricated house and the second floor wooden prefabricated house are assembled at an assembly factory, then transported to a predetermined installation location by a predetermined transportation means and erected at the installation location, and the first connecting means connects and fixes the upper area of ​​the pre-attached connecting plate fitting to the wooden wall panel of the first floor wooden prefabricated house or the wooden wall panel of the second floor wooden prefabricated house at the assembly factory.

11. 11. The wooden prefabricated house connecting method according to claim 9 or 10, further comprising: first connecting means for connecting and fixing a lower area of ​​the post-attached connecting plate fitting to the base using the second connecting means to connect the first wooden prefabricated house on the first floor to the base, then placing the second wooden prefabricated house on the first floor on the base near the first wooden prefabricated house on the first floor, and first pulling means for pulling the second wooden prefabricated house on the first floor toward the first wooden prefabricated house on the first floor; and second connecting means for connecting and fixing the lower area of ​​the pre-attached connecting plate fitting and the upper area of ​​the post-attached connecting plate fitting to the orthogonal laminated floor boards of the second wooden prefabricated house on the first floor, and connecting and fixing the lower area of ​​the post-attached connecting plate fitting to the base after pulling the second wooden prefabricated house on the first floor toward the first wooden prefabricated house on the first floor using the first pulling means.

12. the wooden prefabricated house connecting method includes connecting and fixing a lower area of ​​the post-installation connecting plate metal fitting to an orthogonal laminated ceiling panel of the wooden prefabricated house of the first floor by the second connecting means to connect the first wooden prefabricated house of the second floor to the first wooden prefabricated house of the first floor, placing the second wooden prefabricated house of the second floor on the second wooden prefabricated house of the first floor near the first wooden prefabricated house of the second floor, and using a second pulling means to pull the second wooden prefabricated house of the second floor toward the first wooden prefabricated house of the second floor.

12. The wooden prefabricated house connecting method according to claim 11, further comprising the step of: after the second connecting means has pulled the second wooden prefabricated house on the second floor toward the first wooden prefabricated house on the second floor by the second pulling means, connecting and fixing the lower area of ​​the pre-attached connecting plate fitting and the upper area of ​​the post-attached connecting plate fitting to the orthogonal laminated floor boards of the second wooden prefabricated house on the second floor, and connecting and fixing the lower area of ​​the post-attached connecting plate fitting to the orthogonal laminated ceiling boards of the second wooden prefabricated house on the first floor.

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