JP6992971B2 - Detachable extension room - Google Patents

Description

The present invention relates to an extension room additionally connected to the house in order to increase the floor area of the already constructed house, and mainly relates to an extension room detachably installed in a wooden house having a garden. It is a thing.

In a house such as a detached house, it may be possible to add it if you want to increase the floor area. However, the extension requires large-scale additional construction of foundations and large-scale construction such as demolishing a part of the wall of the existing house. Therefore, the construction period also requires several weeks. If the floor area you want to increase is large and you want to use the extension for almost the entire life of the house, it is considered that there is no problem with such an extension.

However, if the floor area you want to increase is relatively small and you want to remove it or change it to another space in a few years to a dozen years, the extension will be too expensive. In other words, there is a demand for an additional room that can be installed at low cost, in a short construction period, and can be replaced.

Several inventions from the viewpoint of connecting buildings to each other to increase space have been disclosed so far. Patent Document 1 discloses a structure for constructing a middle-high-rise apartment building in a short period of time. Here, the structure of an apartment house in which a frame structure for the required number of floors is constructed in advance, the housing units manufactured at the factory are carried to the site, the housing units are connected to each other at the site, and the housing units are inserted into the frame structure is shown. ing.

Further, Patent Document 2 discloses a method for constructing a continuous floor opening that enables a floor opening having a large opening area straddling a pair of floor panels of adjacent housing units to be easily provided without particularly changing the unit allocation. Has been done.

Special Publication No. 52-12486 Japanese Unexamined Patent Publication No. 2005-240477

Also in the cases of Patent Documents 1 and 2, one house is formed by dividing a house into parts and joining them. Therefore, once assembled, they will not be disassembled until the house is demolished. Therefore, it does not provide a detachable expansion room.

The present invention has been conceived in view of the above problems, and provides a detachable expansion room in which the floor area is increased by short-term construction at low cost.

More specifically, the detachable expansion room according to the present invention is
On the floor,
A side wall extending perpendicular to the floor and having a connection opening on one side communicating with the existing window of the house to be connected.
It has a roof supported by the side wall and
In the connection opening, a connection frame to be joined to the structural frame of the house arranged around the existing window is arranged .
The connection frame has a contact surface that abuts on the side connected to the house.
It is characterized by having a fastening space accessible from the outside on the opposite side of the abutting connection surface .

The detachable extension room according to the present invention is simply carried by transporting the extension room prepared in advance at the factory, removing the shoji portion of the existing window of the house, opening the room, and joining the room, so that the construction can be completed in a few days. Therefore, it can be installed in a short period of time.

In addition, the detachable extension room and the house are joined by bolting, and the existing window frame is left. Therefore, the degree of renovation of the house is very small. Therefore, even if the additional room is no longer needed, it can be attached and detached in a short period of time, and can be used again as the original house. In addition, since the construction period is short, it is possible to replace the room with an additional room of another shape in a short period of time.

In addition, heat insulating materials are placed on the roof, side walls, and floor of the detachable extension room, and electric sockets can also be placed, so that the living environment of the house to be connected can be maintained and the living room of the house can be maintained. Can function as part of.

It is a figure which shows the mode that the expansion room which concerns on this invention is connected to a house. It is a figure which shows the structure around the existing window of the house to be connected. It is a figure which shows the structure of the expansion room which concerns on this invention. This is an example of the basic structure of the extension room. It is a figure which shows the procedure of attaching an extension room. It is a side sectional view of the connection part of an extension room and a house. It is a partially enlarged view of FIG. It is a horizontal sectional view of the joint part of an extension room and a house.

The drawings of the expansion room according to the present invention will be shown and described below. The following description exemplifies one embodiment of the present invention, and the present invention is not limited to the following description. The following description can be modified without departing from the spirit of the present invention.

FIG. 1 shows the relationship between the extension room 1 according to the present invention and the house 50 connected to the room 1. FIG. 1A shows a state before the extension room 1 is connected to the house 50, and FIG. 1B shows a state after the extension room 1 is connected to the house 50. In both figures, the roof of the extension room 1 is omitted so that the connection status can be easily understood.

The expansion room 1 according to the present invention is preassembled in a factory or the like, carried to the installation location by a container or a truck, and connected to the target house 50. The additional room 1 according to the present invention is connected to the existing window 52 of the house 50. Here, the existing window 52 means a window formed in the house 50 before the extension room 1 is connected to the house 50.

The existing window 52 to be connected is used as an entrance / exit between the house 50 and the extension room 1 after the extension room 1 is connected. Therefore, it is desirable to use an existing window 52 having a size that allows people to enter and exit. For example, a sash window having a width of 1000 mm or more and a height of 1800 mm or more, which is a sliding window (sash window or the like) that can be accessed from inside the house 50 to a garden or a terrace, can be preferably used. Further, the entrance may be the existing window 52 of the house 50 to be connected.

FIG. 2 is a view of the house 50 as viewed from the outside. The periphery of the existing window 52 is the outer wall 58o of the house 50 (see FIG. 7). The structure inside the outer wall 58o of the existing window 52 is shown by a dotted line. In the existing window 52, a glass door called a shoji 52g is fitted to each rail in a rectangular window frame 52f in which a plurality of rails are formed vertically. As the shoji 52g moves on the rail, the existing window 52 of the house 50 is opened and closed.

A structural skeleton 56 for fixing the window frame 52f is arranged around the existing window 52 of the house 50. Here, the structural skeleton 56 is a member that becomes a structure when forming a house 50, and is a rod-shaped member such as columns, studs, beams, girders, and trunks arranged in the vertical and horizontal directions. .. Further, the structural skeleton 56 may be a wall panel as referred to in the wooden frame wall construction method. The window frame 52f is fixed to the structural frame 56. In other words, the structural skeleton 56 is arranged around the window frame 52f. Here, the explanation will be continued by taking the wooden frame construction method as an example.

Two pillars or studs are arranged vertically on the left and right sides of the existing window 52. These are called pillar lumber 56a. Further, a window lintel, a long press, or the like is arranged on the upper part of the existing window 52. These are referred to as beam members 56b. Further, a window sill, a joist, a base, or the like is arranged in the lower part of the existing window 52. These are called the base material 56c. The pillar material 56a, the beam material 56b, and the base material 56c are structural skeletons 56. Usually, these structural skeletons 56 are hidden by the outer wall 58o and the inner wall 58i (see FIG. 7) of the house 50. In this specification, the outer wall 58o and the inner wall 58i may include a finishing material arranged on their respective surfaces. The extension room 1 according to the present invention is joined to these structural skeletons 56 via an outer wall 58o.

FIG. 3 shows a front view (FIG. 3 (a)), a plan view (FIG. 3 (b)), a side view (FIG. 3 (c)), and a perspective view (FIG. 3 (d)) of the expansion room 1. .. The front view is a view from the side A (see FIG. 3D) that is not connected to the house 50. Note that the roof 14 is omitted in FIG. 3 (d). The extension room 1 has a floor 10, a side wall 12, and a roof 14. The floor 10 is the floor surface in the extension room 1. The floor 10 is visible in FIG. 3 (d). The floor 10 is usually rectangular in a plan view, but is not particularly limited to a rectangle, and may include a circular shape, a partially curved shape, or the like. Support legs 10s may be provided in advance on the bottom surface of the floor 10. The floor 10 may be partially removed.

The side wall 12 extends perpendicular to the floor 10. It is a so-called wall body. The vertical direction referred to here may have a vertical component and may be inclined with respect to the vertical direction. Further, since the side wall 12 is formed so as to surround the floor 10, if the floor 10 has a portion that is not straight in a plan view, the side wall 12 of that portion does not have to be a flat surface. In FIG. 2, the side wall 12 that can be seen in the front in the front view (FIG. 3A) is a full-scale glass window.

One side of the side wall 12 is provided with an opening that serves as an entrance / exit to the house 50. This is called a connection opening 12o. By connecting the connection opening 12o and the existing window 52 of the house 50, the extension room 1 and the house 50 are communicated with each other. That is, the side wall 12 is formed so as to surround the floor 10 when viewed in a plan view, but there is a portion (connection opening 12o) in which the side wall 12 is not provided. In FIG. 3, the floor 10 is rectangular, and side walls 12 are formed on a long side and one short side. The remaining short side has a connection opening 12o at a portion corresponding to the side wall 12.

Further, a roof 14 supported by the side wall 12 is arranged in the extension room 1 (FIG. 3 (d) is omitted). As a result, the extension room 1 has a rectangular parallelepiped box placed horizontally and has a shape in which a wall body in contact with one side of the short side of the floor 10 is removed. Windows may be formed on the side wall 12 and the roof 14. These windows are referred to as "extension room windows 16" in order to distinguish them from the existing windows 52 of the house 50 to which the extension room 1 is connected.

It is desirable that the extension room 1 has the same heat insulating performance as that of the house 50. If heat easily flows in and out of the extension room 1, a defect occurs in the heat control of the entire house 50, and a sufficient living space cannot be maintained. Therefore, the floor 10, the side wall 12, the roof 14, and the window 16 of the extension room 1 of the extension room 1 are treated with high heat insulation. Specifically, it is desirable to install a heat insulating material on the floor 10, the side wall 12, and the roof 14. The heat insulating material arranged in each is called a heat insulating material 10v, a heat insulating material 12v, and a heat insulating material 14v. Further, as the extension room window 16, a heat insulating window (heat insulating glass, a window having a heat insulating structure, etc.) and a sash or a fitting having a heat insulating property are used.

Further, the roof 14, the side wall 12, and the floor 10 may be provided with an electric socket, a gas plug, or a water tap. These wirings and pipes are arranged in the roof 14, the side wall 12, and the floor 10. If at least electrical wiring is provided in this way, the living environment can be made equivalent to that of the house 50.

A connection frame 18 is provided in the connection opening 12o of the extension room 1. In FIG. 3, in the connection opening 12o, one side wall 12 of the extension room 1 is a connection opening 12o over the entire surface. A connection frame 18 is arranged around the connection opening 12o. The connection frame 18 is a portion that actually connects and fixes the extension room 1 and the house 50. Therefore, the connection frame 18 needs to be firmly coupled to the extension room 1. That is, the connection frame 18 should be integrally formed as a part of the basic structural frame of the extension room 1.

FIG. 4A illustrates a simple basic structural frame of the extension room 1. Further, FIG. 4B is a partial view seen from the arrow B in FIG. 4A. A structural frame made of metal or the like in which a connection frame 18 is previously formed is formed only in a portion corresponding to the connection opening 12o, and a floor 10, a roof 14, and a side wall 12 (each shown in parentheses) are formed therein. The structure is conceivable.

The connection frame 18 is formed so as to surround the connection opening 12o. The connection frame 18 is formed by arranging members having a flat surface on the side of the house 50 (see FIG. 1) on the upper and lower sides and the left and right sides of the connection opening 12o. Here, each part of the connection frame 18 is referred to as "roof side connection frame 18u", "floor side connection frame 18d", and "side wall side connection frame 18s". In FIG. 4, the roof side connection frame 18u, the floor side connection frame 18d, and the side wall side connection frame 18s are continuously formed to form an integral frame-like body, but these are one of the basic structural frames of the expansion room 1. As long as it is firmly joined or connected to the portion, it may be cut off in the middle.

Further, the surface of the connection frame 18 on the side in contact with the house 50 is referred to as a "butting connection surface 18a". The abutting connection surface 18a is also referred to as a "roof side abutting connection surface 18au", a "floor side abutting connection surface 18ad", and a "side wall side abutting connection surface 18as" for each part of the connection frame 18. In FIG. 4, the connection frame 18 is formed of a square member having a rectangular cross section, but is not limited thereto.

With reference to FIG. 4B, it is desirable that the opposite surface of the abutting connection surface 18a of the connection frame 18 (the side of the extension room 1 of the connection frame 18) is also flat. This surface is referred to as a "fastening surface 18b". The fastening surface 18b has a predetermined space on the extension room 1 side of the connection frame 18. This is called "fastening space 18r". The extension room 1 is bolted to the house 50 via the connection frame 18. Therefore, a working space for bolting is required.

When the roof 14 side, the floor 10 side, and the side wall 12 side are distinguished from each other in the fastening surface 18b and the fastening space 18r, the "fastening surface 18bu", the "fastening surface 18bd", the "fastening surface 18bs", and the "fastening space 18ru" are used, respectively. , "Fasting space 18rd", "Fixing space 18rs".

The fastening space 18r may be 30 mm or more (in the direction of arrow C) from the fastening surface 18b toward the extension room 1 side. In FIG. 4, since the connection frame 18 projects outward from the side wall 12 and the roof 14, there is no restriction from the fastening surface 18b toward the extension room 1 side. Therefore, it can be said that it has a sufficient fastening space 18r.

The fastening space 18r needs to be formed so as to be accessible from the outside even after being connected to the house 50. This is because the extension room 1 is premised on being separated from the house 50. Formed to be accessible from the outside means that it is possible to release the bolt fastening from the outside without moving the house 50 and the extension room 1 or destroying a part of either of them. say.

For example, the fastening space 18r is formed to be accessible even if a lid is provided on the connection portion 28 (see FIG. 6) between the extension room 1 and the house 50 with a plate material or the like to protect the fastening space 18r from wind and rain. This is because the fastening space 18r can be exposed by removing the plate material or the like with the lid.

Next, the installation procedure of the extension room 1 according to the present invention will be described, and the detailed description of the connected state will be described. FIG. 5 is a flow chart showing the installation of the expansion room 1 in order. Construction proceeds from FIG. 5 (a) to FIG. 5 (f). On the outside of the existing window 52 of the house 50 to be connected for installing the extension room 1, vacant land such as a garden for installing the extension room 1 is required. This is called a "garden, etc."

First, a foundation 60 for supporting the support legs 10s for supporting the extension room 1 is arranged. Reinforced concrete, stone, iron plate, or the like is preferably used for the foundation 60. In FIG. 5B, the support legs 10s are arranged on the foundation 60. As described above, the support legs 10s may be provided at the installation location. Further, as described above, when assembling the extension room 1 at the factory, the support legs 10s are provided on the bottom surface of the floor 10 (see FIG. 3), and the support legs 10s are placed on the foundation 60 of the installation location. May be good.

Next, the shoji 52 g of the existing window 52 of the house 50 is removed (FIG. 5 (c)). At this time, the window frame 52f is left. The extension room 1 according to the present invention is detachably installed. Therefore, when the additional room 1 is no longer needed, the additional room 1 is removed, the shoji 52 g is put into the window frame 52f, and the additional room 1 can be used again as the existing window 52 of the house 50.

Next, the extension room 1 is placed (FIG. 5 (d)). At this time, the connection frame 18 (see FIG. 4) and the structural frame 56 of the house 50 (see FIG. 2) are fastened with bolts. The details of this conclusion will be described later. In addition, FIG. 5D is shown by making it partially transparent so that the connection state can be easily understood. FIG. 5 (e) shows a state in which the expansion room 1 is connected to the house 50.

In FIG. 5C, the shoji 52g is removed to form the entrance / exit of the extension room 1 and the house 50, but the extension room 1 may be installed without removing the shoji 52g. FIG. 5 (f) shows a state in which the extension room 1 is installed while leaving 52 g of shoji. Such a form can be used, for example, when the extension room 1 is used as an extension of an entrance or the like. Note that FIG. 5 (f) is shown by making it partially transparent so that the connection state can be easily understood.

FIG. 6 is a side sectional view of the connection portion 28 between the house 50 and the extension room 1. FIG. 7 is an enlarged view of parts D and E in FIG. The house 50 side has a ceiling 62 and a floor 64, a hanging wall 66 is formed at the end of the ceiling 62, and an existing window 52 of the house 50 is below the hanging wall 66. The upper and lower parts of the window frame 52f of the existing window 52 of the house 50 are fixed by the beam material 56b and the base material 56c. The window frame 52f is formed so as to project outward by d in FIG. 7 with respect to the outer wall 58o. It is a so-called semi-external sash.

It should be noted that new heat insulating materials 62v, heat insulating materials 64v, and heat insulating materials 66v are added to the ceiling 62, the floor 64, and the hanging wall 66 on the house 50 side. However, if the house 50 side has a heat insulating structure in the first place, these new heat insulating materials 62v, 64v, 66v are unnecessary. The hanging wall 66 is a part of the inner wall 58i.

On the extension room 1 side, the heat insulating material 14v and the heat insulating material 10v are arranged on the roof 14 and the floor 10. Further, on the extension room 1 side, the connection frame 18 is arranged on the outside of the roof 14 and the floor 10 of the connection opening 12o. In FIG. 7, the cross sections of the roof side connection frame 18u and the floor side connection frame 18d are visible. The abutting connection surface 18au of the roof side connecting frame 18u faces the beam material 56b, and the floor side abutting connecting surface 18ad of the floor side connecting frame 18d faces the base material 56c.

Then, after arranging the upper spacer 20u between the outer wall 58o of the house 50 and the abutting connection surface 18au of the roof side connection frame 18u, the beam member 56b and the roof side connection frame 18u are bolted together 25. At this time, the fastening space 18r (18ru, 18rd) is formed so as to be accessible.

The upper spacer 20u is provided to avoid interference between the window frame 52f protruding to the outside of the outer wall 58o and the connection frame 18. Further, the space provided by the upper spacer 20u can also be used as a space for electrical wiring and gas piping between the extension room 1 and the house 50.

Therefore, the upper spacer 20u (including the lower spacer 20d and the side spacer 20s described later) may be assembled in advance as a part of the expansion room 1. These spacers 20 are for securing a space for avoiding interference between the expansion room 1 and the house 50 at the time of fastening, and may not be as strong as the connection frame 18.

Further, a roof cover 14p for avoiding rain may be arranged on the upper part of the roof 14 of the extension room 1. This is to improve waterproofness. Although the fastening space 18r cannot be seen from the outside by the roof cover 14p, the roof cover 14p can be removed without destroying the roof 14, so it can be said that the fastening space 18r is formed so as to be accessible.

The connection between the roof side connection frame 18u and the beam member 56b will be described more specifically. First, a part of the hanging wall 66 is removed to expose the beam material 56b, and a through hole penetrating the beam material 56b and the outer wall 58o is formed from the inside of the house 50. Then, with the upper spacer 20u arranged on the outer wall 58o, the abutting connection surface 18au of the roof side connection frame 18u is brought into contact with the upper spacer 20u, and a bolt is inserted from the through hole to the fastening space 18ru of the roof side connection frame 18u. Install and fasten with nuts. As a result, the beam member 56b, the outer wall 58o, the upper spacer 20u, and the roof side connecting frame 18u are sandwiched at least between the head and the nut of the bolt. There may be a plurality of fastening points on the roof side connection frame 18u.

The floor side connection frame 18d is also fastened to the base material 56c with bolts. In order to fasten the floor side connection frame 18d and the base material 56c, it is necessary to partially remove the floor 64 on the house 50 side, expose the base material 56c, and form a through hole penetrating to the outer wall 58o. However, partial removal of the floor 64 is not an easy construction. Therefore, the fastening of the floor-side connecting frame 18d and the base material 56c may be omitted. Bolt fastening 25 is also performed between the side wall side connecting frame 18s and the pillar member 56a, which will be described later. Therefore, the connection between the extension room 1 and the house 50 can maintain sufficient strength.

FIG. 8 shows a horizontal cross section of the connection portion 28 between the extension room 1 and the house 50. A heat insulating material 12v is arranged on the side wall 12 of the extension room 1. Further, a cross section of the side wall side connecting frame 18s can be seen on the outside of the side wall 12 end. On the other hand, on the house 50 side, the vertical portions on both sides of the window frame 52f and the pillar material 56a for fixing the window frame 52f can be seen. The outer side of the pillar member 56a is the outer wall 58o, and the inner side is the inner wall 58i. The heat insulating material 58iv is also arranged inside (indoor side) of the inner wall 58i. The abutting connection surface 18as of the side wall side connecting frame 18s faces the pillar member 56a through the outer wall 58o.

The side wall side connecting frame 18s is also connected to the house 50 as in the case of FIGS. 6 and 7. Specifically, a part of the inner wall 58i of the house 50 is removed to expose the pillar material 56a. A through hole is formed in the pillar member 56a and the outer wall 58o, the abutting connection surface 18as of the side wall side connection frame 18s is brought into contact with the side spacer 20s, and the bolts are fastened 25.

As a result, at least the pillar member 56a, the outer wall 58o, the side spacer 20s, and the side wall side connecting frame 18s are sandwiched between the head of the bolt and the nut. Like the upper spacer 20u, the side spacer 20s is provided to avoid interference between the window frame 52f protruding from the outer wall 58o and the connection frame 18. In the side wall side connection frame 18s, the bolt fastening 25 may be provided at a plurality of places.

In this way, by fastening the connection frame 18 and the structural frame 56 on the house 50 side, the extension room 1 and the house 50 are connected. Further, the house 50 and the extension room 1 are each provided with heat insulating treatment. However, the connection portion 28 is not heat-insulated. Specifically, it is between the structural frame 56 of the house 50 and the connection frame 18. Therefore, it is desirable to apply a separate heat insulating treatment to the connecting portion 28.

FIG. 8 shows that the heat insulating material 28sv is provided between the heat insulating material 12v of the side wall 12 of the extension room 1 and the heat insulating material 58iv of the inner wall 58i on the house 50 side. Further, referring to FIG. 7 again, a heat insulating material 28uv is provided between the heat insulating material 14v of the roof 14 on the expansion room 1 side and the heat insulating material 66v of the hanging wall 66 of the house 50. Similarly, a heat insulating material 28dv is also provided between the heat insulating material 10v of the floor 10 of the extension room 1 and the heat insulating material 64v of the floor 64 of the house 50.

In this way, by providing the heat insulating material 28v at the connection portion 28 between the extension room 1 and the house 50, the extension room 1 becomes a part of the house 50 even as a living space. It should be noted that electricity and gas (or water) pipes can be arranged from the house 50 side to the extension room 1 side via the side heat insulating material 28sv of the connection portion 28. These wirings and pipes can be arranged in the floor 10, the roof 14, and the side wall 12 of the extension room 1. If it becomes a part of the house 50 as a living space, at least electricity is supplied from the house 50 side, and electricity can be taken out by the electric socket of the extension room 1, it can be said that the living environment is also a part of the house 50.

Since the additional room according to the present invention can increase the floor area in a short period of time and at low cost, it can be effectively used at the time of extension / renovation. In addition, it is possible to develop a general-purpose scale by assuming a window with a standard size that is already in circulation according to the basic dimensions (module) of the conventional shaft assembly method.

1 Expansion room 10 Floor 10s Support leg 12 Side wall 12o Connection opening 14 Roof 14p Roof cover 16 Expansion room window 18 Connection frame 18a Butt connection surface 18au Roof side abutment connection surface 18ad Floor side abutment connection surface 18as Side wall side abutment Connection surface 18b Fastening surface, 18bu fastening surface, 18bd fastening surface, 18bs fastening surface 18r fastening space, 18ru fastening space, 18rd fastening space, 18rs fastening space 18u Roof side connection frame 18d Floor side connection frame 18s Side wall side connection frame 20 Spacer 20u Upper spacer 20d Lower spacer 20s Side spacer 25 Bolt fastening 28 Connection part 50 House 52 Existing window 52f Window frame 52g Obstacle 56 Structural frame 56a Pillar material 56b Beam material 56c Base material 58o Outer wall 58i Inner wall 60 Foundation 62 Ceiling 64 Floor 66 Hanging wall 10v Insulation, 12v Insulation, 14v Insulation, 62v Insulation, 64v Insulation 66v Insulation, 58iv Insulation, 28sv Insulation, 28uv Insulation 28dv Insulation, 28v Insulation

Claims (4)

On the floor,
A side wall extending perpendicular to the floor and having a connection opening on one side communicating with the existing window of the house to be connected.
It has a roof supported by the side wall and
In the connection opening, a connection frame to be joined to the structural frame of the house arranged around the existing window is arranged .
The connection frame has a contact surface that abuts on the side connected to the house.
A detachable extension room characterized by having a fastening space accessible from the outside on the opposite side of the abutting connection surface . The detachable expansion room according to claim 1, wherein a spacer is arranged on the abutting connection surface of the connection frame. The removable extension room according to claim 1 or 2 , wherein the heat insulating material is arranged on the floor, the side wall, and at least a part of the roof. The detachable expansion room according to any one of claims 1 to 3 , wherein an electric socket is provided on the side wall.

Images