JP6775138B2 - Building unit - Google Patents

Description

The present invention relates to a building unit that constitutes a part of a building.

Generally, all construction of a building such as a house is carried out at the construction site of the building. For example, in the case of a wooden house, after the concrete foundation is constructed at the construction site, the pillars, beams and other frameworks, floors, walls, etc. that make up the framework of the house are constructed on the concrete foundation, and then the water supply Equipment construction of housing equipment such as equipment and electrical equipment will be carried out. The housing equipment installed at the construction site may have variations in construction accuracy, and may be a factor of extending the construction period. For example, Patent Document 1 describes a technique for producing an equipment unit including a bathroom, a toilet, a washing place, a kitchen, etc. at a factory and installing it at a construction site. The equipment units are divided and transported to the construction site, installed at the construction site and joined to each other. At the construction site, the equipment unit will be the core, and other entrances, living rooms, etc. will be constructed on-site by the conventional construction method. Further, Patent Document 2 also describes a technique for producing an equipment unit including a unit bath, a washroom, a toilet, etc. at a factory and installing it at a construction site. In the unit bath provided in this equipment unit, a unit in which a bathtub, a floor material, and a wall material are integrated in advance is arranged on the floor surface, and fixed to the floor surface using an engaging portion opened in a U shape. There is.

Japanese Unexamined Patent Publication No. 2-223445 Japanese Unexamined Patent Publication No. 5-91954

Building units such as equipment units that form part of a building such as a house include various types of equipment, but these equipments are rarely used for the duration of the building's existence, and are deteriorated over time, remodeled, etc. It may be necessary to receive a replacement due to.

Therefore, the present invention provides a building unit that enables replacement of equipment.

In order to achieve the above object, the building unit according to one aspect of the present invention is a building unit that is preassembled at a place other than the construction site and installed as a part of the building at the construction site, and is a plurality of building units constituting the building unit. It is provided with a horizontal member, a bathtub support, and a frame that is bridged over a plurality of horizontal members and supports the bathtub support from below, and the frame is engaged with the upper surface of the horizontal member and is from the upper surface. Also has a frame portion extending laterally downward and a fixing portion for detachably fixing the bathtub support to the frame portion.

According to the building unit according to the present invention, the equipment of the building unit can be replaced.

It is a perspective view which shows typically the appearance of the building unit which concerns on embodiment. It is sectional drawing which looked at the cross section which cuts the 1st building unit in the horizontal direction of FIG. 1 in the downward direction II. It is sectional drawing which looked at the cross section which cuts the 2nd building unit in the horizontal direction of FIG. 1 in the downward direction III. It is a perspective view which shows the bus pedestal arranged on the floor side horizontal member of the 2nd building unit of FIG. FIG. 5 is an enlarged perspective view showing the periphery of the girder fixing portion and the first support portion of the frame portion of the bus mount of FIG. It is a side view of the first support part of FIG.

Hereinafter, the building unit according to the embodiment of the present invention will be described in detail with reference to the drawings. It should be noted that all of the embodiments described below show a preferred specific example of the present invention. Therefore, the numerical values, shapes, materials, components, arrangement and connection forms of the components, steps (processes), order of steps, etc. shown in the following embodiments are examples, and are not intended to limit the present invention. .. Therefore, among the components in the following embodiments, the components not described in the independent claims indicating the highest level concept of the present invention will be described as arbitrary components.

Further, each figure is a schematic view and is not necessarily exactly illustrated. Further, in each figure, the same components are designated by the same reference numerals. Further, in the following embodiments, expressions with "abbreviations" such as substantially the same or substantially squares may be used. For example, substantially the same means not only that they are exactly the same, but also that they are substantially the same, that is, they include, for example, a few percent difference. The same applies to expressions using other "abbreviations".

[Embodiment]
[Building unit]
The outline of the building unit 1 according to the embodiment will be described with reference to FIG. FIG. 1 is a perspective view schematically showing the appearance of the building unit 1 according to the embodiment. The building unit 1 constitutes a part of the building. When a building is constructed using the building unit 1, other structures such as an entrance and a living room are constructed around the building unit 1 with the building unit 1 installed at the construction site as a core. For example, pillars, beams, outer walls, inner walls, ceilings, etc. of a building are constructed based on the building unit 1. Such a building unit 1 is also called a core unit which is a core when constructing a building. In the present embodiment, the building to which the building unit 1 is applied is a wooden house, but it may be a non-wooden house in which only a part is made of wood, or a non-wooden or non-wooden house such as a store, a factory or a warehouse. Good. In the present embodiment, the building has two floors, but it may have three or more floors, one floor, or even a basement.

The building unit 1 according to the present embodiment is a core unit that collectively includes many of the water supply facilities and electrical facilities required for a house. Consolidating most of the water supply facilities into the building unit 1 makes it possible to secure a large living space even in a small house.
In the present embodiment, the building unit 1 has a substantially rectangular parallelepiped outer shape. At least one side surface of the building unit 1 may constitute the outer wall of the building. One or more building units 1 may be arranged in the building. The plurality of building units 1 form, for example, a part of a house having two or more floors. In this case, the plurality of building units 1 may be stacked one above the other and connected to each other to form each of the plurality of floors. In the present embodiment, the plurality of building units 1 are a first building unit 10 and a second building unit 20 that form a part of a two-story house.

The first building unit 10 and the second building unit 20 each form one of a plurality of floors, and the second building unit 20 constitutes a floor directly above the first building unit 10. In the present embodiment, the first building unit 10 constitutes the first floor of the building, and the second building unit 20 constitutes the second floor of the building. The first building unit 10 is arranged on the foundation 40 of the building and fixed to the foundation 40. The foundation 40 may be, for example, a cloth foundation or a solid foundation made of reinforced concrete, and has anchor bolts (not shown) embedded in the foundation 40 and protruding upward from the upper surface of the foundation 40. Anchor bolts are fastened to column base metal fittings provided at the bottom of the column portion of the first building unit 10, thereby fixing the first building unit 10 to the foundation 40.

The plurality of building units 1 are preassembled at a place other than the construction place of the building such as a factory. That is, the first building unit 10 and the second building unit 20 are industrialization units in which various facilities are preliminarily incorporated in factories and the like. Factory production of the building unit 1 enables the production of a high-quality and high-performance building unit 1, and further shortens the construction period at the construction site.

The first building unit 10 and the second building unit 20, which are assembled at the factory, that is, produced at the factory, are each transported to the construction site by a transport vehicle such as a truck. The transported first building unit 10 and second building unit 20 are stacked and installed at the construction site, and are connected and fixed to each other. If the truck height limit is satisfied, or if the truck height limit does not exist, the first building unit 10 and the second building unit 20 are connected and fixed at a factory or the like. It may be transported to the construction site in the state of being carried.

Both the first building unit 10 and the second building unit 20 have a size equivalent to a substantially rectangular parallelepiped outer shape. Each of the first building unit 10 and the second building unit 20 can be designed so as not to exceed the height limit of the Road Traffic Act when placed on the loading platform of a transport vehicle such as a truck, for example. As an example, the size of each of the first building unit 10 and the second building unit 20 has a plane size of about 364 cm × 182 cm and a height of about 273 cm. Each of the first building unit 10 and the second building unit 20 is formed by a wooden frame construction method. Specifically, each of the first building unit 10 and the second building unit 20 includes a framework formed of a plurality of pillars, beams, horizontal members such as bases, face members, and the like.

[Structure of 1st building unit and 2nd building unit]
The specific configuration of the first building unit 10 and the second building unit 20 will be described. Referring to FIG. 1, the first building unit 10 constituting the first floor of the building and the second building unit 20 constituting the second floor of the building are, for example, building structures as a frame structure by a wooden frame construction method. To be equipped with. The building structure includes a framework made of horizontal materials such as beams and foundations and building materials such as columns, and a floor structure made of building materials such as large pulls. The horizontal member constitutes the base of the first building unit 10 and the like, and constitutes the beam and the like of the second building unit 20. The building structure is preassembled at a place other than the construction site such as a factory.

With reference to FIGS. 1 and 2, the building structure of the first building unit 10 includes a rectangular frame-shaped base 11, a plurality of pillars 12 built on the base 11, face materials 13 straddling the pillars 12, and pillars. Formed by a plurality of studs 14 arranged between the 12 columns, a plurality of large studs (not shown) spanning the base 11, a floor material laid on the large studs, a ceiling panel (not shown) installed above the pillars 12. Will be done. Note that FIG. 2 is a cross-sectional view of the cross section of the first building unit 10 of FIG. 1 cut in the horizontal direction as viewed in the downward direction II, and shows a schematic plan view of the inside of the first building unit 10. It is also a figure. The columns 12 and studs 14 extend in the vertical direction, and the base 11 and the studs extend in the substantially horizontal direction.

At the bottom of the pillar 12, a pillar base metal fitting that connects the pillar 12, the base 11, and the large pull to each other is attached. In the present embodiment, the first building unit 10 does not include a beam on the ceiling side, specifically, a girder and a second floor beam. Then, when the second building unit 20 is installed on the first building unit 10, the upper part of the plurality of pillars 12 of the first building unit 10 is covered with a girder arranged on the floor side of the second building unit 20. The floor-side horizontal members 21 constituting the second-floor floor beams are connected to serve as the ceiling-side beams of the first building unit 10. In the present embodiment, the building materials such as the base 11, the pillar 12, the face material 13, the stud 14, and the large pull (not shown) are wood.

The columns 12, face members 13 and studs 14 form the walls 15 of the first building unit 10. A wall material (not shown) such as gypsum board may be installed on the face material 13 arranged inside the wall 15. In addition, wallpaper can be pasted on the wall material. In the present embodiment, the face member 13 is arranged inside and outside the wall 15, but only one of them may be used. The columns 12, face members 13 and studs 14 may be individually assembled to the base 11 or assembled as wall panels prior to assembly to the base 11. Then, the wall panel may be built on the base 11 to form the wall 15.

With reference to FIGS. 1 and 3, the building structure of the second building unit 20 is arranged between the floor side horizontal member 21, the plurality of columns 22, the face members 23 bridged between the columns 22, and the columns 22. By a plurality of studs 24, a ceiling-side horizontal member 26 arranged above the pillar 22, a floor material (not shown) installed on the floor-side horizontal member 21, a ceiling panel (not shown) installed above the pillar 22, etc. It is formed. The floor material may be made of a floor material or the like, similarly to the first building unit 10. Note that FIG. 3 is a cross-sectional view of the cross section of the second building unit 20 of FIG. 1 cut in the horizontal direction as viewed in the downward direction III, and shows a schematic plan view of the inside of the second building unit 20. It is also a figure. The columns 22 and studs 24 extend in the vertical direction, and the floor-side horizontal member 21 and the ceiling-side horizontal member 26 extend in the substantially horizontal direction. The floor-side horizontal member 21 is composed of a girder, a second-floor floor beam, and the like, and the ceiling-side horizontal member 26 is composed of a second-floor ceiling beam and the like.

The floor-side horizontal member 21 connects the lower portions of the plurality of pillars 22 to each other, and the ceiling-side horizontal member 26 connects the upper portions of the plurality of pillars 22 to each other. In the present embodiment, the pillar 22 is arranged on the floor side horizontal member 21, and the ceiling side horizontal member 26 is arranged on the upper end of the pillar 22. The floor-side horizontal member 21 and the ceiling-side horizontal member 26 may be arranged on the side of the pillar 22. A connecting metal fitting (not shown) for connecting the floor-side horizontal member 21 and the pillar 12 of the first building unit 10 to each other is attached to the bottom of the floor-side horizontal member 21. The connecting metal fitting may be attached to the pillar 12 in advance at a place other than the construction site of the building, or may be attached to the pillar 12 at the construction site.
In the present embodiment, the building materials such as the floor side horizontal member 21, the pillar 22, the face material 23, the stud 24, and the ceiling side horizontal member 26 are made of wood.

The columns 22, face members 23 and studs 24 form the walls 25 of the second building unit 20. A wall material (not shown) such as gypsum board may be installed on the face material 23 arranged inside the wall 25. In addition, wallpaper can be pasted on the wall material. In the present embodiment, the face member 23 is arranged inside and outside the wall 25, but only one of them may be used. The columns 22, face members 23, and studs 24 may be individually assembled to the floor-side horizontal member 21, or may be assembled as wall panels prior to assembly to the floor-side horizontal member 21. Then, the wall panel may be formed on the floor side horizontal member 21 to form the wall 25.

[Facility]
With reference to FIGS. 1, 2 and 3, in the present embodiment, the building unit 1 includes equipment. The equipment is specifically a residential equipment, and includes, for example, water supply equipment, electrical equipment, air conditioning / ventilation equipment, interior decoration, and the like. Each facility is pre-installed in at least one of a plurality of building units 1 arranged in the building at a place other than the construction site.

Water facilities include, for example, at least one of a bath (bathroom), toilet, wash basin and kitchen. The water heater may further include a water heater (hot water supply system), and may include pipes such as drain pipes, water supply pipes, and hot water supply pipes installed in a pipe space formed in the ceiling, under the floor, or in the wall. Good.

In the present embodiment, the toilet 31 and the wash basin 32 are installed inside the first building unit 10. Further, a space 33 in which equipment can be arranged is provided inside the first building unit 10. A power outlet is arranged in the space 33, and the space 33 can be used as a pantry in which, for example, a refrigerator for storing food is installed. A toilet 31, a washbasin 32, and a unit bath 34 are installed inside the second building unit 20. The unit bath 34 constitutes a bathroom. Further, although not shown, various pipes are arranged in a space between the first building unit 10 and the second building unit 20 and the like. The floor plate 34a of the unit bath 34 is supported by the floor-side horizontal member 21 via a bus stand 50 (see FIG. 4) arranged on the floor-side horizontal member 21. The floor plate 34a may be a plate that supports the floor of the bathroom including the bathtub 34b, and may not be a member that constitutes the unit bath 34. The floor plate 34a that supports a heavy-weight bathtub is made of a high-strength material such as metal or FRP (Fiber-Reinforced Plastics). Here, the floor plate 34a is an example of a bathtub support.

The electrical equipment may include, for example, a distribution board, an intercom, an information panel, an operation panel for operating various equipment, a storage cooperation device (creation cooperation system), and equipment such as lighting. The electrical equipment may further include switches, outlets, and wiring equipment such as information wiring and electrical wiring. Distribution boards, intercoms, information panels, operation panels, creation and storage cooperation devices, switches, outlets, etc. can be arranged indoors. Various wirings can be placed behind the ceiling, under the floor or in the walls.
The air-conditioning ventilation equipment may include, for example, an air-conditioning indoor unit such as an air conditioner installed indoors, a heat exchanger installed behind the ceiling, a ventilation fan, and the like. The air conditioning and ventilation equipment may further include various pipes such as ducts installed in the pipe space.
The interior may include finishing materials, fittings, storage tools, etc. applied to the floor, walls, ceiling, etc. in the building unit 1.

The quantity and arrangement of the above-mentioned facilities are merely examples, and are not particularly limited. For example, in the present embodiment, a configuration in which both the first building unit 10 and the second building unit 20 are provided with water circulation equipment is exemplified, but only one of the first building unit 10 and the second building unit 20 is provided. May be equipped with water supply facilities. For example, in the present embodiment, the unit bus 34 is arranged in the second building unit 20, but may be arranged in the first building unit 10. In this case, the floor plate 34a of the unit bath 34 is supported by the base 11 via the bus stand 50 (see FIG. 4) arranged on the base 11.

[Bus stand configuration]
Next, the configuration of the bus stand 50 that supports the unit bus 34 on the floor side horizontal frame member 21 or the base 11 will be described. With reference to FIG. 4, a bus pedestal 50 arranged on the floor-side horizontal member 21 is shown. FIG. 4 is a perspective view showing a bus stand 50 arranged on the floor side horizontal member 21 of the second building unit 20 of FIG.

The floor-side horizontal member 21 is formed of four linear members 21a, 21b, 21c and 21d assembled in a rectangular frame shape. The linear members 21a and 21c extending substantially parallel to each other constitute members on the longitudinal side of the floor-side horizontal member 21, and the linear members 21b and 21d extending substantially parallel to each other constitute the floor-side horizontal member 21. It constitutes the member on the short side of 21. A plurality of large pulls 27, in the present embodiment, two large pulls 27 are bridged from the linear member 21a to the linear member 21c and fixed to the linear members 21a and 21c. Here, the linear members 21a to 21d are examples of horizontal members.

A bus pedestal 50 for supporting the unit bath 34 is arranged in the space between the large pull 27 and the linear member 21b inside the floor side horizontal member 21. The bus mount 50 is attached to the linear members 21a and 21c. The bus pedestal 50 supports the floor plate 34a of the unit bus 34 (indicated by a broken line in FIG. 4) from below.

The bus pedestal 50 includes a frame portion 51 bridged between the linear members 21a and 21c, and a first support portion 52 and a second support portion 53 arranged on the frame portion 51 and directly supporting the floor plate 34a. It has. Although not limited, in the present embodiment, the three frame portions 51 are provided substantially parallel to each other. The frame portion 51, the first support portion 52, and the second support portion 53 are made of a strong material, and in the present embodiment, they are made of a metal such as iron or steel. Each frame portion 51 includes a columnar receiving girder portion 51a extending between the linear members 21a and 21c, and two girder fixing portions 51b arranged at both ends of the receiving girder portion 51a. The receiving girder portion 51a and the girder fixing portion 51b are joined and integrated by a joining method such as welding. The receiving girder portion 51a has a flat upper surface 51aa, and in the present embodiment, has an elongated square cylinder shape. Here, the first support portion 52 is an example of a fixed portion.

With reference to FIGS. 4 and 5, the girder fixing portion 51b has a hooking portion 51bb that is placed and engaged on the upper surface 21aa or 21ca of the linear member 21a or 21c, and a hanging portion 51ba that hangs down from the end of the hooking portion 51bb. And a receiving portion 51bc protruding laterally from the lower end of the hanging portion 51ba. FIG. 5 is an enlarged perspective view showing the periphery of the girder fixing portion 51b and the first support portion 52 of the frame portion 51 of the bus mount 50 of FIG. The girder fixing portion 51b as described above has a structure that engages with the upper surface 21aa or 21ca and extends downward. In the present embodiment, the girder fixing portion 51b has a shape formed by bending a flat plate material into a Z shape. The hooking portion 51bb, the hanging portion 51ba, and the receiving portion 51bc each have a flat plate-like shape and extend vertically to each other. The hooking portion 51bb and the receiving portion 51bc project from the hanging portion 51ba in opposite directions. A plurality of through holes 51bd are formed in the hanging portion 51ba.

The receiving girder portion 51a is arranged on the receiving portion 51bc, and the lower surface 51ab of the receiving girder portion 51a is integrally joined to the upper surface of the receiving portion 51bc by a joining method such as welding. The end portion of the receiving girder portion 51a may also be joined to the hanging portion 51ba by a joining method such as welding. As described above, the girder fixing portions 51b are joined to both ends of the receiving girder portion 51a.

In each frame portion 51 as described above, the hooking portions 51bb of the two girder fixing portions 51b at both ends are placed on the upper surfaces 21aa and 21ca of the linear members 21a and 21c, respectively, and are bridged between the linear members 21a and 21c. It is installed on the floor side horizontal member 21. The hanging portion 51ba of the two girder fixing portions 51b extends and abuts on the inner side surfaces 21ab and 21cc of the linear members 21a and 21c, respectively, and is passed through the through hole 51b of the hanging portion 51ba. It is fixed to the linear members 21a and 21c by joint fittings such as screws and nails. Then, the receiving girder portion 51a extends laterally below the upper surfaces 21aa and 21ca of the linear members 21a and 21c.

In this embodiment, four first support portions 52 are arranged. The two first support portions 52 are arranged on the frame portion 51 closest to the linear member 21b, and the two first support portions 52 are arranged on the frame portion 51 closest to the linear member 21d. That is, the four first support portions 52 are arranged below the four corner portions of the floor plate 34a of the unit bath 34. Therefore, the four first support portions 52 are dispersedly arranged along the peripheral edge of the floor plate 34a.

With reference to FIGS. 5 and 6, each first support portion 52 is fixed to a pedestal portion 52a arranged on the receiving girder portion 51a of the frame portion 51 and a fixed receiving portion 52b arranged on the pedestal portion 52a. A support shaft portion 52c extending from the receiving portion 52b to the floor plate 34a is included. FIG. 6 is a side view of the first support portion 52 of FIG. 5, which is a view of the first support portion 52 in the direction from the linear member 21b toward the linear member 21d. Each pedestal portion 52a includes a flat plate-shaped seat plate portion 52aa arranged on the upper surface 51aa of the receiving girder portion 51a, a flat plate-shaped side support portion 52ab hanging from the seat plate portion 52aa, and a lower surface of the seat plate portion 52aa. And a ribbed reinforcement 52ac extending between the sides of the lateral support 52ab. The seat plate portion 52aa, the side support portion 52ab, and the seat plate portion 52aa are integrated.

The seat plate portion 52aa extends so as to face the upper surface 51aa of the receiving girder portion 51a, and the seat plate portion 52aa extends in the direction from the receiving girder portion 51a toward the linear member 21b or 21d from the upper surface 51aa, that is, the receiving of the frame portion 51. It projects laterally, which is substantially perpendicular to the axial direction of the girder portion 51a. The seat plate portion 52aa forms a seating surface wider than the upper surface 51aa. The side support portion 52ab extends perpendicularly to the seat plate portion 52aa, extends so as to face the side surface of the receiving girder portion 51a, and abuts on the side surface. The reinforcing portion 52ac is arranged between the protruding portion of the seat plate portion 52aa from the receiving girder portion 51a and the side support portion 52ab, and extends perpendicularly to the seat plate portion 52aa and the side support portion 52ab. The reinforcing portion 52ac reinforces the strength of the seat plate portion 52aa against a downward load of the protruding portion. The side support portion 52ab disperses the load acting downward from the seat plate portion 52aa to the reinforcing portion 52ac and transmits the load to the receiving girder portion 51a, that is, the load acts intensively from the reinforcing portion 52ac to the receiving girder portion 51a. Suppress that. The seat plate portion 52aa and the side support portion 52ab are integrally joined to the receiving girder portion 51a by a joining method such as welding.

Each fixed receiving portion 52b includes two flat plate-shaped wall portions 52ba and 52bb extending so as to face each other at intervals. The fixed receiving portion 52b has, for example, a shape formed by bending a flat plate into a U shape. The wall portions 52ba and 52bb form U-shaped opposed side portions. The lower wall portion 52bb, which is the lower wall portion, is arranged on the seat plate portion 52aa of the pedestal portion 52a, and the upper wall portion 52ba, which is the upper wall portion, is spaced from the seat plate portion 52aa. It extends so as to face 52aa. In the present embodiment, the upper wall portion 52ba is located below the upper surfaces 21aa and 21ca of the linear members 21a and 21c, that is, is located below the upper surface of the floor-side horizontal member 21. The lower wall portion 52bb is integrally joined to the seat plate portion 52aa by a joining method such as welding. All the fixed receiving portions 52b are arranged so that their U-shaped cross section is oriented sideways and the open end of the U-shaped cross section is directed toward the linear member 21b. That is, the upper wall portion 52ba and the lower wall portion 52bb, which are the upper wall portions, are all connected on the linear member 21d side, and are not connected on the linear members 21a, 21b, and 21c sides. Here, the upper wall portion 52ba is an example of the fixed wall portion.

At the end of the upper wall portion 52ba on the open end side of the U-shaped cross section of the fixed receiving portion 52b, a concave portion 52bc having a U-shaped planar shape is formed so as to be cut from the end portion near the center thereof. Has been done. The recess 52bc has a shape that is recessed from the end of the upper wall portion 52ba on the linear member 21b side toward the end of the linear member 21d. The recess 52bc is opened at the end of the upper wall portion 52ba on the linear member 21b side, and penetrates the upper wall portion 52ba in the vertical direction.

Each support shaft portion 52c includes a columnar main body portion 52ca having a male screw on its outer peripheral surface, and an enlarged portion 52cc integrally formed at the lower end portion of the main body portion 52ca. The enlarged portion 52 cab has a shape in which the main body portion 52 ca is enlarged in the radial direction. The support shaft portion 52c is composed of, for example, a bolt, and the expansion portion 52cc constitutes the head of the bolt. The upper end of the main body 52ca on the opposite side of the enlarged portion 52cc is connected to the floor plate 34a of the unit bath 34.

A plurality of connecting portions 34aa having female screw holes are arranged on the lower surface of the floor plate 34a. Each connecting portion 34aa is composed of, for example, a long nut. Each connecting portion 34aa is fixed to the floor plate 34a with the axial direction of the female screw hole in the vertical direction. The plurality of connecting portions 34aa are arranged at positions corresponding to the plurality of first supporting portions 52 and the plurality of second supporting portions 53, respectively.

The support shaft portion 52c is connected to the connecting portion 34aa by screwing the male screw at the upper end portion of the main body portion 52ca into the female screw hole of the connecting portion 34aa of the floor plate 34a. Further, the main body portion 52ca of the support shaft portion 52c connected to the connection portion 34aa is located in the recess 52bc of the fixed receiving portion 52b and extends so as to intersect with the upper wall portion 52ba of the fixed receiving portion 52b, and the support shaft. The enlarged portion 52 bc of the portion 52 c is located on the lower wall portion 52 bb of the fixed receiving portion 52 b. That is, the support shaft portion 52c stands upright from the lower wall portion 52bb and the seat plate portion 52aa substantially vertically. As a result, the floor plate 34a is supported by the receiving girder portion 51a, that is, the frame portion 51, via the connecting portion 34aa, the support shaft portion 52c, and the fixed receiving portion 52b. Further, by screw-rotating the support shaft portion 52c with respect to the connection portion 34aa, the distance between the enlarged portion 52cc of the support shaft portion 52c and the connection portion 34aa changes, whereby the height of the floor plate 34a with respect to the receiving girder portion 51a changes. Changes. The expanding portion 52cc disperses the load received from the floor plate 34a to the main body portion 52ca and transmits the load to the fixed receiving portion 52b. The enlarged portion 52cc is gripped when the screw of the support shaft portion 52c is rotated, and facilitates the screw rotation of the support shaft portion 52c.

Further, on the main body 52ca of the support shaft 52c, two fixing members 52d arranged so as to sandwich the upper wall 52ba of the fixing receiving portion 52b from above and below, and one fixing directly below the connecting portion 34aa. The member 52e is screwed together. Note that in FIG. 5, the connection portion 34aa is not shown. Here, the fixing member 52d is an example of the first fixing member, and the fixing member 52e is an example of the second fixing member.

The fixing members 52d and 52e are composed of, for example, nuts. The fixing member 52e directly below the connecting portion 34aa is tightened toward the connecting portion 34aa so that the main body portion 52ca of the support shaft portion 52c positioned in the height direction with respect to the floor plate 34a is not screwed. It is fixed to the connection portion 34aa. The two upper and lower fixing members 52d of the upper wall portion 52ba are tightened toward the upper wall portion 52ba to fix the main body portion 52ca of the support shaft portion 52c to the upper wall portion 52ba. As a result, the floor plate 34a and its connecting portion 34aa are fixed and supported by the frame portion 51 in the vertical direction and the horizontal direction. Therefore, the four first support portions 52 support the floor plate 34a and are fixed to the frame portion 51 by the four corner portions of the floor plate 34a. Therefore, the floor plate 34a is supported by the floor-side horizontal member 21 via the first support portion 52 and the frame portion 51.

Referring to FIG. 4, in the present embodiment, one or more second support portions 53 are arranged in each frame portion 51. Each second support portion 53 includes a pedestal portion 53a arranged on the receiving girder portion 51a of the frame portion 51, and a support shaft portion 53b arranged on the pedestal portion 53a and extending from the pedestal portion 53a to the floor plate 34a. The pedestal portion 53a of the second support portion 53 has the same configuration as the pedestal portion 52a of the first support portion 52, and is joined and fixed to the receiving girder portion 51a of the frame portion 51. The support shaft portion 53b of the second support portion 53 has the same configuration as the support shaft portion 52c of the first support portion 52. The support shaft portion 53b has an enlarged portion placed on the pedestal portion 53a and extends upward, and the main body portion thereof is screwed into the connecting portion 34aa of the floor plate 34a.

A fixing member arranged directly below the connecting portion 34aa and having the same configuration as the fixing member 52e is screwed into the main body portion of the support shaft portion 53b. By tightening the fixing member toward the connecting portion 34aa, the support shaft portion 53b positioned in the height direction with respect to the floor plate 34a is fixed to the connecting portion 34aa so as not to rotate the screw. As a result, the floor plate 34a and its connecting portion 34aa are supported by the frame portion 51 in the vertical direction via the second supporting portion 53. Therefore, the plurality of second support portions 53 support the floor plate 34a on the frame portion 51 inside the four corner portions of the floor plate 34a. Therefore, the floor plate 34a is supported by the floor-side horizontal member 21 via the second support portion 53 and the frame portion 51. Each second support portion 53 is not fixed to the frame portion 51 in either the vertical direction or the horizontal direction.

The unit bath 34 having the floor plate 34a as described above is installed on the floor side horizontal member 21 as described below. With reference to FIGS. 4 and 6, the floor plate 34a of the unit bath 34 is arranged on the frame portion 51 in a state in which the support shaft portion 52c or 53b is screwed into each connecting portion 34aa and hung down. At this time, the support shaft portion 52c of each first support portion 52 is a recess 52bc of the fixed receiving portion 52b of the first support portion 52 in the direction from the linear member 21b of the floor-side horizontal member 21 toward the linear member 21d. It is fitted inside and placed on the lower wall portion 52bb of the fixed receiving portion 52b. The support shaft portion 53b of each second support portion 53 is located above the pedestal portion 53a of the second support portion 53. The support shaft portion 53b may or may not be in contact with the pedestal portion 53a. After that, the support shaft portions 52c and 53b are screw-rotated and expanded / contracted so as to horizontally position the floor plate 34a at a predetermined height position, and the protrusion length of the floor plate 34a from the connecting portion 34aa is adjusted.

After the positioning of the floor plate 34a is completed, the plurality of fixing members 52d and 52e previously attached to the main body portion 52ca of the support shaft portion 52c are screw-rotated toward the connecting portion 34aa and the upper wall portion 52ba of the fixing receiving portion 52b. Is tightened. As a result, the support shaft portion 52c is fixed to the connecting portion 34aa and the upper wall portion 52ba in a state of being placed on the lower wall portion 52bb of the fixed receiving portion 52b. Further, the fixing member previously attached to the main body of the support shaft portion 53b is screw-rotated and tightened toward the connecting portion 34aa. As a result, the support shaft portion 53b is fixed to the connecting portion 34aa while resting on the pedestal portion 53a. Further, there is a gap between the floor plate 34a after the installation and the position adjustment are completed and the linear member 21b of the floor side horizontal member 21.

After that, the components of the unit bath 34 such as the wall, ceiling, and bathtub are assembled on the floor plate 34a. Therefore, the unit bath 34 is supported by the floor-side horizontal member 21 and fixed to the floor-side horizontal member 21 via the plurality of support shaft portions 52c and 53b, the plurality of frame portions 51, and the like.

As time passes after the building is completed and used, the unit bath 34 may be replaced for remodeling, repair, or the like. At this time, by loosening the fastening of the fixing members of the support shaft portions 52c and 53b, the support shaft portions 52c are fixed to the connection portion 34aa of the fixed receiving portion 52b of the first support portion 52 and the floor plate 34a of the unit bath 34. Is released. As a result, the support shaft portions 52c and 53b can be expanded and contracted with respect to the connecting portion 34aa of the floor plate 34a, and can be removed from the connecting portion 34aa. The floor plate 34a is pulled up while sliding from the linear member 21d of the floor-side horizontal member 21 toward the linear member 21b, thereby causing the support shaft portion 52c to deviate from the recess 52bc of the fixed receiving portion 52b, thereby causing the floor plate 34a to deviate from the recess 52bc of the fixed receiving portion 52b. , Removed from the frame portion 51, the first support portion 52, and the second support portion 53. Therefore, the floor plate 34a of the unit bath 34 can be removed from the frame portion 51, the first support portion 52, and the second support portion 53, that is, from the floor-side horizontal member 21. In particular, since there is a gap between the floor plate 34a and the linear member 21b of the floor-side horizontal member 21, the floor plate 34a can be slid. The sliding direction of the floor plate 34a may be directed in the direction opposite to the outer wall of the building, that is, toward the interior of the building, so that the fixed receiving portion 52b and its recess 52bc are directed. As a result, the interference that the slide of the floor plate 34a receives by the outer wall of the building is suppressed.

In the conventional technique, since the floor plate 34a of the unit bath 34 is integrated with the support frame attached to the floor side horizontal member 21, it is complicated to install the unit bath 34 on the floor side horizontal member 21. Work was involved. Further, when the unit bath 34 once installed is removed from the floor side horizontal member 21, it is necessary to remove the support frame. However, the floor-side horizontal member 21 made of wood may undergo a volume change such as shrinkage and a shape change such as bending due to changes in the surrounding environment and aging. Therefore, it is difficult to remove the support frame, and it is also difficult to re-install the frame after removal.

On the other hand, in the bus stand 50, the floor plate 34a can be fixed and released to the floor side horizontal member 21 by fastening and releasing the fixing members of the support shaft portions 52c and 53b. Further, when the floor plate 34a is removed from the floor side horizontal member 21, the frame portion 51 is left on the floor side horizontal member 21. Therefore, the bus stand 50 facilitates the installation, removal, and re-installation work of the unit bath 34 on the floor side horizontal member 21.
When the unit bus 34 is installed on the base 11 of the first building unit 10, the bus stand 50 is attached to the base 11 in the same manner as described above.

[Effects, etc.]
As described above, the building unit 1 according to the embodiment is a building unit that is preassembled at a place other than the construction site and installed as a part of the building at the construction site. The building unit 1 includes a plurality of linear members 21a to 21d of the floor-side horizontal member 21 constituting the building unit 1, a floor plate 34a of the unit bath 34 as a bathtub support, and a plurality of linear members 21a and 21c. A bus pedestal 50 that is bridged over the floor and supports the floor plate 34a from below is provided. The bus pedestal 50 engages with the upper surfaces 21aa and 21ca of the linear members 21a and 21c, and detachably fixes the floor plate 34a to the frame portion 51 and the frame portion 51 extending laterally below the upper surfaces 21aa and 21ca. It has a first support portion 52.

In the above configuration, the first support portion 52 detachably fixes the frame portion 51 that engages with the linear members 21a and 21c and the floor plate 34a. As a result, the unit bath 34 and its floor plate 34a can be attached to and detached from the floor-side horizontal member 21 formed by the linear members 21a and 21c. Therefore, the building unit 1 according to the embodiment enables the replacement of equipment. Further, the first support portion 52 can be provided at a position lower than the upper surfaces 21aa and 21ca of the floor-side horizontal member 21. Therefore, it is possible to utilize the vertical height including the thickness of the floor-side horizontal member 21, and it is possible to replace the unit bath equipment with a different size and the pipe space under the floor plate 34a of the unit bath 34. It becomes easy to secure.

In the building unit 1 according to the embodiment, the frame portion 51 has a hook portion 51bb mounted on the linear members 21a and 21c of the floor side horizontal member 21, and a hanging portion 51ba hanging from the end portion of the hook portion 51bb. And a receiving girder portion 51a projecting laterally from the lower end of the hanging portion 51ba. Further, the first support portion 52 detachably fixes the floor plate 34a to the receiving girder portion 51a. With the above configuration, the receiving girder portion 51a can be provided at a position lower than the upper surfaces 21aa and 21ca of the floor-side horizontal member 21, whereby the first support portion 52 is also lowered from the upper surfaces 21aa and 21ca. Can be installed in a different position. Therefore, it is possible to effectively utilize the vertical height including the thickness of the floor-side horizontal member 21.

In the building unit 1 according to the embodiment, the first support portion 52 has a support shaft portion 52c that is stretchable with respect to the floor plate 34a and supports the floor plate 34a. In the above configuration, the support shaft portion 52c can change the height position of the floor plate 34a by expanding and contracting. Therefore, the floor plate 34a can be installed at a predetermined height position.

In the building unit 1 according to the embodiment, a plurality of first support portions 52 are arranged, and the plurality of first support portions 52 are dispersedly arranged on the peripheral edge of the floor plate 34a. In the above configuration, the support shaft portions 52c of the plurality of first support portions 52 dispersedly arranged on the peripheral edge of the floor plate 34a can change the height position of the peripheral edge of the floor plate 34a. Therefore, the support shaft portion 52c for leveling the floor plate 34a can be easily adjusted.

In the building unit 1 according to the embodiment, the frame portion 51 is bridged over a plurality of linear members 21a and 21c and supports the support shaft portion 52c of the first support portion 52 from below. In the above configuration, the support portion of the support shaft portion 52c formed by bridging the frame portion 51 over the linear members 21a and 21c facilitates the formation and stably supports the support shaft portion 52c. Can be done.

In the building unit 1 according to the embodiment, the first support portion 52 is fixed to the frame portion 51 at a position upward away from the frame portion 51 and in a direction intersecting the support shaft portion 52c of the first support portion 52. It has an extending upper wall portion 52ba. The upper wall portion 52ba has a recess 52 bc into which the support shaft portion 52c is fitted from the side. The first support portion 52 has a fixing member 52d that engages with the support shaft portion 52c in the recess 52bc and the upper wall portion 52ba and fixes the support shaft portion 52c to the upper wall portion 52ba. In the above configuration, the support shaft portion 52c is fixed to the frame portion 51 via the upper wall portion 52ba, and further fixed to the floor side horizontal member 21 via the frame portion 51. Therefore, the support shaft portion 52c can stably support the floor plate 34a. Further, the fixing of the support shaft portion 52c to the upper wall portion 52ba is simple because it is achieved by engaging the fixing member 52d with the support shaft portion 52c and the upper wall portion 52ba.

In the building unit 1 according to the embodiment, the support shaft portion 52c of the first support portion 52 has a female screw hole formed in the floor plate 34a and a male screw screwed into the female screw hole formed in the fixing member 52d. The two fixing members 52d screwed into the support shaft portion 52c are fastened to each other with the upper wall portion 52ba of the first support portion 52 interposed therebetween, thereby fixing the support shaft portion 52c to the upper wall portion 52ba. The support shaft portion 52c expands and contracts with respect to the floor plate 34a by being screw-rotated. In the above configuration, fixing and releasing of the support shaft portion 52c and the upper wall portion 52ba is simple because it is achieved by fastening and loosening the fastening of the two fixing members 52d.

In the building unit 1 according to the embodiment, the first support portion 52 is screwed to the support shaft portion 52c and the floor plate and the fixing member 52d as the first fixing member for fixing the support shaft portion 52c to the upper wall portion 52ba. It has a fixing member 52e as a second fixing member that fixes the support shaft portion 52c to the floor plate 34a by being tightened toward 34a. In the above configuration, in addition to fixing the support shaft portion 52c and the upper wall portion 52ba, the support shaft portion 52c and the floor plate 34a are fixed. Therefore, the floor plate 34a is more securely fixed to the frame portion 51. Further, fixing and releasing the floor plate 34a to the frame portion 51 is simple because it is achieved by fastening and loosening the fixing member 52e.

In the building unit 1 according to the embodiment, the upper wall portion 52ba of the first support portion 52 is the upper side wall portion of the fixed receiving portion 52b which is a U-shaped member forming a lateral U-shaped cross section on the frame portion 51. The U-shaped cross section and the recess 52bc of the fixed receiving portion 52b are open toward the interior of the building. In the above configuration, when it is necessary to remove the unit bath 34 and the floor plate 34a after the building unit 1 is used as a part of the building, the floor plate 34a is used to remove the floor plate 34a. Even when it is necessary to slide in the horizontal direction, it is easy to secure a moving space for the floor plate 34a because it is not interfered with by the outer wall of the building or the like.

In the building unit 1 according to the embodiment, the upper wall portion 52ba of the first support portion 52 is the upper side wall portion of the fixed receiving portion 52b which is a U-shaped member forming a lateral U-shaped cross section on the frame portion 51. The U-shaped cross section and the recess 52bc of the fixed receiving portion 52b are open toward the inside of the building unit 1. In the above configuration, when it is necessary to remove the unit bath 34 and the floor plate 34a after the building unit 1 is used as a part of the building, the floor plate 34a is used to remove the floor plate 34a. Even when it is necessary to slide in the horizontal direction, it is easy to secure a moving space for the floor plate 34a because it is not interfered with by the wall or the like of the building unit 1.

[Other]
Although the present invention has been described above based on the above-described embodiment, the present invention is not limited to the above-described embodiment.
In the embodiment, an example in which two building units 1 are provided has been shown, but the number of building units 1 may be only one or three or more.
In the embodiment, an example in which two building units 1 constitute the first floor and the second floor of a building, respectively, has been shown, but the present invention is not limited to this. The building unit 1 may form an upper floor of three or more floors, or may form a basement floor such as the first basement floor.

In the embodiment, an example in which one or more building units 1 are formed by the wooden frame construction method has been shown, but the present invention is not limited thereto. For example, a wooden frame wall construction method such as a 2x4 construction method, or another construction method such as a steel frame construction may be used for the building unit 1. Therefore, the pillar material of the building unit 1 is not limited to wood, but may be a steel frame material. Further, the pillar material of the building unit 1 may be a part of the frame of the building unit 1.

In the embodiment, the bus pedestal 50 is arranged so as to bridge the floor side horizontal member 21 or the base 11 having a rectangular frame shape, but the present invention is not limited to this. The bus pedestal 50 may be arranged on any horizontal member such as a large pull 27 in the building unit 1.
In the embodiment, the two members to which the bus pedestal 50 is bridged are two linear members 21a and 21c extending substantially parallel to each other, but the present invention is not limited thereto. The two members on which the bus pedestal 50 is bridged may form any arrangement shape as long as they are arranged at intervals from each other. Further, the two members to which the bus pedestal 50 is laid may not be a linear member, and may extend with a bend, a curve, or the like.

In the embodiment, the fixed receiving portion 52b and the recess 52bc are oriented so that the floor plate 34a slides from the linear member 21d toward the linear member 21b when the floor plate 34a of the unit bath 34 is removed from the bus stand 50. It was, but it is not limited to this. The fixed receiving portion 52b and the recess 52bc may be oriented so that the floor plate 34a slides between any two linear members 21a to 21d in the direction across them. That is, the sliding direction of the floor plate 34a may be any direction across the two opposing linear members, and is in the direction across the two intersecting linear members, that is, the direction diagonally intersecting the linear members. There may be.

In addition, it is realized by arbitrarily combining the components and functions in each embodiment within the range obtained by applying various modifications to each embodiment and the gist of the present invention. Forms are also included in the present invention.

1 Building unit 21 Floor side horizontal member 21a, 21b, 21c, 21d Linear member (horizontal member)
21aa, 21ca upper surface (upper surface of horizontal member)
34a Floor board (bathtub support)
50 Bus stand 51 Frame part 51a Receiving girder part 51ba Hanging part 51bb Hooking part 52 First support part (fixed part)
52b Fixed receiving part 52ba Upper wall part (fixed wall part)
52bc Recessed 52c Support shaft 52d Fixing member (first fixing member)
52e Fixing member (second fixing member)

Claims (8)

A building unit that is pre-assembled outside the construction site and installed as part of the building at the construction site.
A plurality of horizontal members constituting the building unit,
Bathtub support and
A pedestal that is bridged over the plurality of horizontal members and supports the bathtub support from below is provided.
The gantry
A frame portion that engages with the upper surface of the horizontal member and extends laterally below the upper surface,
Have a fixing portion for detachably fixing the tub support to the frame portion,
The frame portion
A hooking portion placed on the horizontal member and
A hanging part that hangs down from the end of the hooking part,
Including a receiving girder portion that projects laterally from the lower end of the hanging portion.
In the fixing portion, the bathtub support is detachably fixed to the receiving girder portion, and the bathtub support is detachably fixed.
The hanging portion is a building unit fixed to the inner side surface of the horizontal member . The building unit according to claim 1, wherein the fixing portion is expandable and contractable with respect to the bathtub support and has a support shaft portion that supports the bathtub support. A plurality of the fixing portions are arranged,
The building unit according to claim 1 or 2, wherein the plurality of fixing portions are dispersedly arranged on the peripheral edge of the bathtub support. The fixing portion has a support shaft portion that is stretchable with respect to the bathtub support and supports the bathtub support.
The fixed portion has a fixed wall portion fixed to the frame portion and extending in a direction intersecting with the support shaft portion at a position separated upward from the frame portion.
The fixed wall portion has a recess into which the support shaft portion is fitted from the side.
Any one of claims 1 to 3 , wherein the fixing portion has a fixing member that engages with the support shaft portion and the fixing wall portion in the recess and fixes the support shaft portion to the fixing wall portion. The building unit described in. The support shaft portion has a female screw hole formed in the bathtub support and a male screw screwed into the female screw hole formed in the fixing member.
The two fixing members screwed into the support shaft portion are fastened to each other with the fixing wall portion interposed therebetween to fix the support shaft portion to the fixing wall portion.
The building unit according to claim 4 , wherein the support shaft portion expands and contracts with respect to the bathtub support by being screw-rotated. The fixing portion fixes the support shaft portion to the bathtub support by screwing the first fixing member as the fixing member and the support shaft portion and tightening the fixing portion toward the bathtub support. The building unit according to claim 5 , which has a fixing member. The fixed wall portion is an upper side wall portion of a U-shaped member that forms a laterally U-shaped cross section on the frame portion.
The building unit according to any one of claims 4 to 6 , wherein the U-shaped cross section of the U-shaped member and the recess are open toward the interior of the building. The fixed wall portion is an upper side wall portion of a U-shaped member that forms a laterally U-shaped cross section on the frame portion.
The building unit according to any one of claims 4 to 7 , wherein the U-shaped cross section and the recess of the U-shaped member are open toward the inside of the building unit.

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