JP7303712B2 - unit building - Google Patents

Description

The present invention relates to unit buildings.

A unit building is a building that can be constructed in a short period of time by transporting a plurality of building units manufactured in advance at a factory to a construction site and assembling them at the construction site (see, for example, Patent Document 1). .

In Patent Document 1, a small auxiliary unit is attached to the outer surface of the building unit on the lower floor.

JP 2013-108228 A

When attaching a small accessory unit to the outer surface of a building unit that constitutes a unit building, for example, attaching an accessory unit only to the outer surface of the building unit on the lower floor, or attaching the accessory unit to the outer surface of the building unit on the upper floor It is conceivable to attach accessory units only to the outer surface, or to attach accessory units vertically to the outer surfaces of building units on both upper and lower floors.

In particular, when ancillary units are attached above and below the outer surfaces of both lower and upper floor building units, the upper and lower floor ancillary units should be the same size and stacked vertically. Thus, the weight (load) of the accessory unit on the upper floor can be effectively received by the accessory unit on the lower floor.

On the other hand, if you try to make the auxiliary units on the upper floor and the auxiliary units on the lower floor different sizes, the positions of the pillars of the auxiliary units on the upper floor and the auxiliary units on the lower floor will be different from each other. Structurally, it becomes difficult to have the weight of the incidental unit on the floor be received by the incidental unit on the lower floor (the pillars thereof). Further, when trying to deal with this problem by changing the structure of the accessory unit itself, extra costs are incurred. Therefore, the degree of freedom in arranging the accessory units vertically is low, and in particular, it is difficult to vertically arrange the accessory units on the upper floor and the accessory units on the lower floor of different sizes. .

Therefore, the main object of the present invention is to contribute to the improvement of the above-described problems.

In response to the above problems, the present invention
A unit building in which rectangular parallelepiped lower floor units and upper floor units are installed above and below,
A lower floor accessory unit is attached to the outer surface of the long side of the lower floor building unit,
An upper floor accessory unit is attached to the outer surface of the upper floor building unit on the long side,
The upper floor accessory unit is fixedly held by the upper floor building unit,
The lower-floor incidental unit and the upper-floor incidental unit are arranged vertically with at least a portion thereof overlapping in the long side direction,
The lower-floor incidental unit and the upper-floor incidental unit are vertically connected and fixed by an upper-floor fixed joint at a position where the overlapping portion avoids the pillar of the upper-floor incidental unit ,
The upper-floor incidental unit has a protruding portion protruding in the long-side direction with respect to the lower-floor incidental unit,
The protruding portion of the upper floor accessory unit has a bottom portion attached to the upper floor unit from below via a joint fitting attached to the outer surface of the floor beam on the long side of the upper floor unit. supported and fixed,
The lower-floor incidental unit and the upper-floor incidental unit have different lengths in the long side direction, and the upper-floor incidental unit is longer than the lower-floor incidental unit so that the upper-floor incidental unit extends beyond the upper-floor incidental unit. It features a unit building forming part.

According to the present invention, with the above configuration, the upper-floor accessory unit and the lower-floor accessory unit can be vertically arranged relatively freely.
In addition, in the unit building, the bottom of the protruding part of the upper floor accessory unit is attached to the upper floor unit from below via a joint fitting attached to the outer surface of the floor beam on the long side of the upper floor unit. By being supported and fixed, the protruding part of the upper floor accessory unit can be supported and fixed simply by attaching the joint metal fittings to the upper floor unit. You can effectively prevent it from falling.
The lower-floor incidental unit and the upper-floor incidental unit have different lengths in the long-side direction, and the upper-floor incidental unit is made longer than the lower-floor incidental unit, so that the lengths in the long-side direction are different from each other. It is possible to freely combine and install the lower-floor incidental unit and the upper-floor incidental unit to form an overhanging portion in the upper-floor incidental unit.

1 is a perspective view of a unit building having a lower-floor accessory unit and an upper-floor accessory unit vertically according to the first embodiment; FIG. Figure 2 is a perspective view of the building unit of Figure 1; FIG. 2 is an exploded perspective view of the accessory unit of FIG. 1; FIG. 2 is a plan view of the upper and lower floor fixed joints of FIG. 1; FIG. 3 is a vertical cross-sectional view of the upper and lower floor fixed joint portion of FIG. 2; FIG. 3 is a side view of the upper and lower floor fixed joint portions of FIG. 2; FIG. 3 is an exploded perspective view of the unit building showing the state of joint fittings; FIG. 11 is a partially enlarged perspective view showing a state in which the upper-floor accessory unit is fixed using joint fittings; Of these, (a) is before installation of the joint fitting, (b) is after installation of the joint fitting and before installation of the positioning pin, (c) is before installation of the upper floor accessory unit, and (d) is the upper floor accessory unit. This is the state after installation. Fig. 2 is a perspective view of a second embodiment of a unit building; Fig. 11 is a perspective view of a third embodiment of a unit building; FIG. 11 is a perspective view of a fourth embodiment of a unit building; (a), (b), (c), and (d) are diagrams sequentially showing a procedure for constructing a unit building having a lower-floor incidental unit and an upper-floor incidental unit above and below. 11(a), (b), and (c) are diagrams sequentially showing the construction procedure of the unit building following FIG. 10. FIG. 12(a), (b), and (c) are diagrams sequentially showing the construction procedure of the unit building following FIG. 11; FIG. 13(a) and 14(b) are diagrams sequentially showing the construction procedure of the unit building following FIG. 12. FIG.

Hereinafter, this embodiment will be described in detail with reference to the drawings.
1 to 13 are for explaining this embodiment.

<Construction> The construction will be described below.

As shown in FIG. 1, a unit building 1 is constructed in a short period of time by transporting a plurality of building units manufactured in advance to a construction site and assembling them at the construction site. .

The unit building 1 has a plurality of floors by installing rectangular parallelepiped building units (a lower floor unit 2 and an upper floor unit 3) in the vertical direction 4. - 特許庁

Normally, the lower floor building unit 2 and the upper floor building unit 3 are of the same size and are stacked vertically in alignment with each other.

The building units that make up the lower floor unit 2 and the upper floor unit 3 will now be described. Building units include steel-framed units and wood-based units. As shown in FIG. 1A, the upper ends of four pillars 5 having the same length are connected in a rectangular shape by four ceiling beams 6, and the lower ends of the four pillars 5 are connected to four floors. It has a unit frame of a box rigid-frame structure which is connected in a rectangular shape by beams 7 . The pillars 5 can be made of, for example, square steel pipes, and the ceiling beams 6 and the floor beams 7 can be made of, for example, inward C-shaped channel steel.

The lower floor unit 2 and the upper floor unit 3 are vertically connected by aligning the positions of the four pillars 5 so that the weight (load) of the upper floor unit 3 can be transferred to the lower floor unit 3 via the pillars 5. The building unit 2 can be made to receive.

The four ceiling beams 6 and the four floor beams 7 are composed of a pair of long sides 6a, 7a of equal length and a pair of short sides 6b, 7b of equal length. The extending direction of the long sides 6a and 7a (long side direction 8) is the girder direction of the building unit, and the extending direction of the short sides 6b and 7b (short side direction 9) is the gable direction of the building unit.

The lower floor unit 2 and the upper floor unit 3 having the same size means that the ceiling beams 6 (the long sides 6a and the short sides 6b) of the lower floor unit 2 and the floor beams of the upper floor unit 3 7 (longer side 7a and shorter side 7b) have the same length. The state in which the positions are aligned with each other means that the lower floor unit 2 and the upper floor unit 3 are arranged in the same direction, the positions of the four pillars 5 are aligned, and the lower floor units are connected vertically. 2 and the long side 7a of the floor beam 7 of the upper floor unit 3, and the short side 6b of the ceiling beam 6 of the lower floor unit 2 and the floor beam 7 of the upper floor unit 3. It is a state in which the short sides 7b and the short sides 7b are overlapped vertically in a state of being aligned with each other.

In addition to the above configuration, this embodiment can have the following configuration.

(1) As shown in FIG. 1, the lower floor auxiliary unit 12 is attached to the outer surface of the lower floor building unit 2 on the side of the long sides 6a and 7a.
Similarly, the upper floor accessory unit 13 is attached to the outer surface of the upper floor building unit 3 on the side of the long sides 6a and 7a.
The upper floor accessory unit 13 is fixedly held by the upper floor building unit 3. - 特許庁
In addition, the lower-floor incidental unit 12 and the upper-floor incidental unit 13 are arranged vertically with at least a part thereof having an overlapping portion 14 overlapping in the long-side direction 8 .
Further, the lower floor accessory unit 12 and the upper floor accessory unit 13 are vertically connected and fixed by the upper and lower floor fixing joints 15 at the overlapping portions 14 .

Here, the outer surface on the side of the long sides 6a and 7a means the side surface formed by the pillar 5 and the long sides 6a and 7a of the lower floor accessory unit 12 and the upper floor accessory unit 13, or the side surface in the long side direction 8. Of the extending sides, it is a side located outside the unit building 1, and the lower floor unit 2 and the upper floor unit 3 are installed in the same position and in a flush state.

The incidental units that constitute the incidental units 12 on the lower floor and the incidental units on the upper floor 13 are attached to the building units and are smaller than the building units. The auxiliary unit has a substantially rectangular parallelepiped shape, and is formed to have substantially the same height as the building unit in the vertical direction 4, and is formed shorter than the building unit in the short side direction 9. - 特許庁The auxiliary unit can be formed to have substantially the same length as the building unit or shorter than the building unit in the long side direction 8 .

For example, as shown in FIG. 1B, the auxiliary unit consists of a pair of short gable roof beams 17b and a pair of gable floor beams 18b of equal length for the upper and lower ends of four pillars 16 of equal length. to constitute a pair of end frames F which are substantially square-shaped when viewed from the side, and between the pair of end frames F are a pair of long girder roof beams 17a and a pair of long girder floor beams 18a having the same length. It is said that it is connected with The columns 16 can be made of, for example, square steel pipes or L-shaped steel. It can be composed of channel steel or the like. The end frame F is integrated by welding or the like, and the girder roof beam 17a and the girder floor beam 18a are fixed to the end frame F by bolts b (FIG. 2) or the like.

As shown in FIG. 1, the lower floor accessory unit 12 is an accessory unit located on the lower floor. The lower floor accessory unit 12 is installed and fixed on a foundation built on the ground. As a result, the ground receives the weight (load) of the lower floor accessory unit 12 . A lower floor accessory unit 12 fixed to the ground is connected to the lower floor building unit 2 . The lower floor building unit 2 is in a state in which it is not particularly necessary to receive the weight of the lower floor accessory unit 12 .

The upper floor accessory unit 13 is an accessory unit located on the upper floor. The upper floor accessory unit 13 is fixedly held on the outer surface of the upper floor building unit 3 (fixed portion 19). The fixed part 19 is located between the upper part of the upper floor unit 3 side of the upper floor accessory unit 13 and the upper part of the outer surface of the upper floor unit 3, or the lower part of the upper floor accessory unit 13 on the upper floor unit 3 side. and the lower part of the outer surface of the upper building unit 3. As a result, the upper floor unit 3 receives the weight (load) of the upper floor accessory unit 13 . Therefore, even if the upper-floor incidental unit 13 is arranged above the lower-floor incidental unit 12, the lower-floor incidental unit 12 does not need to receive the weight of the upper-floor incidental unit 13. - 特許庁

The overlapping portion 14 is a portion where the lower floor incidental unit 12 and the upper floor incidental unit 13 overlap vertically with respect to the long side direction 8. However, in this embodiment, it is not the entire area but a part of the area. The overlapping portion 14 is located between all or at least part of the lower floor incidental unit 12 in the long side direction 8 and all or at least part of the upper floor incidental unit 13 in the long side direction 8. and the upper-floor incidental unit 13.

As shown in FIG. 2 (to FIG. 4), the upper and lower floor fixed joints 15 can be configured by bolts extending in the vertical direction 4, nuts and the like. The mounting direction of the upper and lower floor fixed joints 15 may be either from the upper side or from the lower side. The upper and lower floor fixed joints 15 are provided to fasten and fix the girder roof beam 17a of the lower floor accessory unit 12 and the girder floor beam 18a of the upper floor accessory unit 13 vertically. The upper and lower story fixed joints 15 are provided at positions avoiding the columns 16 of the lower story accessory unit 12 or the upper story accessory unit 13 and at positions close to the column 16. - 特許庁The upper and lower floor fixed joints 15 are provided on both the outer surface side and the unit side of the unit building 1. - 特許庁In a position where the pillars 16 of the lower floor accessory unit 12 and the upper floor accessory unit 13 are not vertically aligned, the pillars 16 are not used for fixing the upper and lower floors.

At the position where the upper and lower floor fixed joints 15 are installed, a single spacer 21 such as a square washer is placed between the girder roof beam 17a of the lower floor accessory unit 12 and the girder floor beam 18a of the upper floor accessory unit 13 as needed. Alternatively, a plurality of sheets may be interposed.

At the position where the upper and lower floor fixed joints 15 are installed, at least one of the ceiling plate 22 (FIG. 3) of the lower floor accessory unit 12 or the floor plate 23 (FIG. 3) of the upper floor accessory unit 13 is partially removed. Preferably, it should be removable so that it can be easily accessed. The ceiling plate 22 is attached on the ceiling joist 24 constructed between the girder roof beams 17a of the accessory unit 12 on the lower floor. The floor plate 23 is attached under the floor girders 25 constructed between the girder floor girders 18 a of the upper floor accessory unit 13 .

(2) As shown in FIG. 1, the upper-floor incidental unit 13 may have a projecting portion 31 protruding in the long side direction 8 with respect to the lower-floor incidental unit 12 .
As shown in FIG. 5 , the protruding portion 31 of the upper floor accessory unit 13 has a bottom part that extends downward through a joint fitting 32 attached to the outer surface of the upper floor unit 3 on the long sides 6 a and 7 a side. may be supported and fixed to the upper building unit 3 from the upper floor unit 3.

Here, the overhanging portion 31 is a portion other than the overlapping portion 14 . The projecting portion 31 has both a portion where the lower floor incidental unit 12 protrudes from the upper floor incidental unit 13 and a portion where the upper floor incidental unit 13 protrudes from the lower floor incidental unit 12. Here, it is mainly a portion where the upper floor accessory unit 13 protrudes from the lower floor accessory unit 12 . The upper and lower floor fixed joints 15 are attached to the pillars 5 of the lower floor accessory unit 12 or the upper floor accessory unit 13 and the lower floor accessory unit 12 at positions corresponding to the protruding portions 31 of the lower floor accessory unit 12 or the upper floor accessory unit 13. It is preferable to provide it at a position in the long side direction 8 near the pillar 16 of .

The bottom of the overhanging portion 31 can be, for example, the girder floor beam 18a on the unit side of the upper floor accessory unit 13 or the like.

The joint fitting 32 is attached to, for example, the outer surface of the long side 7a of the floor beam 7 located below the outer surface of the upper floor building unit 3 (surface on the upper floor accessory unit 13 side). The installation position of the joint fitting 32 can be, for example, a position separated by a predetermined distance (for example, 450 mm) from the end of the protruding portion 31 (the tip or base on the overlapping portion 14 side).

As shown in FIG. 6, the joint fitting 32 is an L-shaped fitting or the like having a vertical surface portion 32a and a horizontal surface portion 32b extending substantially horizontally from the lower side of the vertical surface portion 32a toward the outside of the unit building 1. can do.

The vertical surface portion 32a is laterally attached to the outer surface of the floor beam 7 (long side 6a) of the upper building unit 3 with fasteners 32c such as screws (FIG. 3(a)). The horizontal surface portion 32b holds the girder floor beam 18a on the unit side of the upper floor accessory unit 13, thereby locking the upper floor accessory unit 13 (the protruding portion 31 thereof) from below ((d) in FIG. )). A positioning pin 33 is attached to the horizontal surface portion 32b so as to face upward (FIGS. 4(b) and 4(c)), and a positioning hole 34 into which the positioning pin 33 is inserted is provided on the lower surface of the girder floor beam 18a on the unit side. is formed. The horizontal surface portion 32b and the lower surface of the girder floor beam 18a on the unit side are fastened and fixed in the vertical direction 4 by means of fasteners 35 such as bolts and nuts (FIG. 4(d)). The positioning pins 33 and fixtures 35 are installed at both ends of the lateral surface portion 32b. The positioning pin 33 is preferably provided on the side of the upper building unit 3 close to the column 5 . The upper end of the positioning pin 33 is tapered so that the positioning hole 34 can be easily inserted. A lower end portion of the positioning pin 33 is a cylindrical shaft portion having substantially the same diameter as the positioning hole 34 .

In this embodiment, the vertical surface portion 32a of the joint fitting 32 has approximately the same height as the floor beam 7 of the upper floor building unit 3, and the girder floor beam 18a of the upper floor accessory unit 13 is slightly higher than these. getting low. Further, the lateral surface portion 32b of the joint fitting 32 is laterally longer than the girder floor beam 18a of the upper floor accessory unit 13. As shown in FIG.

(3) As shown in FIG. 1, the lower floor auxiliary unit 12 and the upper floor auxiliary unit 13 may have different lengths L1 and L2 in the long side direction 8 from each other.

Here, the lower-floor incidental unit 12 and the upper-floor incidental unit 13 generally have the same lengths L1 and L2 in the long side direction 8, but in this embodiment, the lengths L1 and L2 are made different.

For example, as shown in the embodiment of FIG. 1 (FIG. 7), the length L1 of the lower floor accessory unit 12 can be made shorter in the long side direction 8 than the length L2 of the upper floor accessory unit 13 . In this case, a protruding portion 31 for the lower floor accessory unit 12 is formed on the side of the upper floor accessory unit 13 . In this embodiment, the upper floor accessory unit 13 has the same length L2 in the long side direction 8 as the upper floor building unit 3 . The lower floor accessory unit 12 is shifted to one side in the long side direction 8 of the lower floor building unit 2 .

As shown in FIG. 1, the lower floor auxiliary unit 12 and the upper floor auxiliary unit 13 may have the same length in the short side direction 9. Alternatively, as shown in FIG. The length of the short side 9 may be different from that of the accessory unit 13 so that the lower floor accessory unit 12 protrudes outward from the upper floor accessory unit 13 (in the short side direction of the lower floor accessory unit 12). length 9>length of the short side direction 9 of the upper floor accessory unit 13). In this case, the upper and lower floor fixed joints 15 can be attached, for example, to intersections between the gable roof beams 17b of the lower floor accessory unit 12 and the girder floor beams 18a of the upper floor accessory unit 13, or the like.

Further, as shown in the embodiment of FIG. 8, the length L2 of the upper floor accessory unit 13 can be made shorter in the long side direction 8 than the length L1 of the lower floor accessory unit 12 . In this case, a protruding portion 31 for the upper floor accessory unit 13 is formed on the side of the lower floor accessory unit 12 . A balcony 36 can be installed so as to be adjacent to the upper-floor incidental unit 13 in the longitudinal direction 8 at a position right above the protruding portion 31 of the lower-floor incidental unit 12 . The balcony 36 can have an appropriate size within the range up to the end of the upper floor building unit 3 in the long side direction 8 . In this embodiment, the lower floor accessory unit 12 has the same length L1 in the long side direction 8 as the upper floor building unit 3 . The upper floor incidental unit 13 is shifted to one side in the long side direction 8 of the upper floor building unit 3 . Since the upper-floor incidental unit 13 does not have the protruding portion 31, the joint fitting 32 becomes unnecessary.

As shown in the embodiment of FIG. 9, both the upper floor auxiliary unit 13 and the lower floor auxiliary unit 12 are made shorter in the long side direction 8 lengths L1 and L2 than the upper floor building unit 3. At the same time, the upper-floor accessory unit 13 and the lower-floor accessory unit 12 can be displaced from each other to one side and the other side in the long side direction 8 . The upper-floor incidental unit 13 and the lower-floor incidental unit 12 have the same lengths L1 and L2 in the long-side direction 8 and are shifted in the long-side direction 8, or have different lengths L1 and L2 and are shifted in the long-side direction 8. It is possible to shift to

In this case, between the lower floor accessory unit 12 and the upper floor accessory unit 13, an overlapping portion 14 is formed in the middle portion in the long side direction 8, and protruding portions 31 are formed on both sides of the overlapping portion 14. be. It is preferable that the tip position of the protruding portion 31 is aligned with the position of the end portion of the lower floor building unit 2 or the upper floor building unit 3 in the long side direction 8 . A balcony 36 can be installed so as to be adjacent to the upper-floor incidental unit 13 in the longitudinal direction 8 at a position right above the protruding portion 31 of the lower-floor incidental unit 12 . The balcony 36 can have an appropriate size within the range up to the end of the upper floor building unit 3 in the long side direction 8 .

<Action> The action of this embodiment will be described below.

The unit building 1 is constructed as follows (FIGS. 10 to 13).

First, as shown in (a) to (d) in FIG. The lower floor accessory unit 12 is installed in the lower floor building unit 2, and the lower floor accessory unit 12 is connected to the outer surface of the lower floor building unit 2. - 特許庁In this case, the lower floor incidental unit 12 is, for example, formed to have a dimension in the long side direction 8 shorter than that of the lower floor building unit 2, and is biased to one side of the lower floor building unit 2 in the long side direction 8. Installed.

In this state, a plate 41 is attached to the corner portion of the pillar 16 on the other side of the lower floor accessory unit 12 in the long side direction 8 to protect the corner portion (such as the stigma of the pillar 16) (Fig. 1(a)). , a spacer 21 such as a square washer is installed near the pillar 16 on the other side of the lower floor accessory unit 12 at the position where the upper and lower floor fixed joints 15 are attached (Fig. A column head joint bolt 42 is attached to the column head of the column 16 on one side of the direction 8 ((c) in the same figure), and an upper and lower floor anti-vibration joint 43 is attached to the unit side of the lower floor incidental unit 12 (the same figure ( d)).

In this embodiment, the plate 41 is provided at two locations on the unit side and the outer side, the spacer 21 is provided at two locations on the unit side and the outer side, and the column head joint bolt 42 is provided at one location on the unit side. , and the upper and lower story anti-vibration joints 43 are provided at two positions on the unit side, but the present invention is not limited to this.

Next, as shown in FIGS. 11(a) to 11(c), below the upper building unit 3,
A joint fitting 32 is attached to support the bottom of the protruding portion 31 of the upper floor accessory unit 13 from below (FIGS. 13(a) and 13(b)). At this time, the mounting position of the joint fitting 32 is optimally set according to the size of the lower floor accessory unit 12 (Fig. when the floor incidental unit 12 is small). A positioning pin 33 is attached to the joint fitting 32 .

Then, the upper floor incidental unit 13 is installed on the outer surface of the upper floor building unit 3 (Fig. 1(c)). At this time, the overlapped portion 14 on one side of the upper floor unit 3 is put on the lower floor accessory unit 12, and the protruding portion 31 on the other side of the upper floor unit 3 is connected from below with joint fittings 32. make it supportive. Then, the upper building unit 3 is positioned by the column head joint bolt 42 and the positioning pin 33 of the joint fitting 32 .

Next, as shown in FIG. 12(a), between the upper part of the upper floor accessory unit 13 (the girder roof beam 17a) and the upper part of the outer surface of the upper floor unit 3, a detachment prevention fitting 45 is attached and tightened. By pulling in, the upper floor incidental unit 13 is pulled toward the upper floor building unit 3 side. The detachment prevention fitting 45 can be a bolt/nut or the like extending in the short side direction 9 .

In this state, as shown in FIG. 3(b), the upper part of the upper floor accessory unit 13 is fixed to the upper part of the outer surface of the upper floor building unit 3 with the fixing part 19, and as shown in FIG. Second, the lower part of the upper floor accessory unit 13 is fixed to the lower part of the outer surface of the upper floor building unit 3 by the fixing part 19 . Thereby, the upper floor building unit 3 can receive the weight of the upper floor accessory unit 13 .

Finally, as shown in FIG. 13(a), the sling fitting 46 attached to the upper part of the upper floor accessory unit 13 and used for hanging the upper floor accessory unit 13 is removed. Also, the detachment prevention fitting 45 is removed from between the upper part of the upper floor accessory unit 13 (the girder roof beam 17 a ) and the upper part of the outer surface of the upper floor building unit 3 . Then, as shown in FIG. 4B, the upper floor accessory unit 13 and the lower floor accessory unit 12 are fixed by the upper and lower floor fixing joints 15 .

As described above, the unit building 1 having the upper floor unit 3 on the lower floor unit 2 and the upper floor auxiliary unit 13 on the lower floor auxiliary unit 12 is constructed.

<Effects> According to this embodiment, the following effects can be obtained.

(Effect 1) The unit building 1 can have multiple floors by vertically installing the rectangular parallelepiped lower floor unit 2 and upper floor unit 3 .

In the unit building 1, a lower floor incidental unit 12 is attached to the outer surface of the lower floor building unit 2 on the long side 6a, 7a side, and an upper floor building unit 3 is attached to the outer surface of the upper floor building unit 3 on the long side 6a, 7a side. An accessory unit 13 may be attached. Thereby, the internal space of the lower floor building unit 2 can be expanded by the lower floor auxiliary unit 12, and the internal space of the upper floor building unit 3 can be expanded by the upper floor auxiliary unit 13. - 特許庁

At this time, the upper floor accessory unit 13 is fixed to the outer surface of the upper floor unit 3 on the side of the long sides 6a, 7a so that the weight of the upper floor accessory unit 13 can be reduced. 3, and the lower floor auxiliary unit 12 does not need to receive the weight of the upper floor auxiliary unit 13, so that the structural strength of the lower floor auxiliary unit 12 can be reduced and the cost can be reduced. be possible. In addition, the sizes of the upper-floor accessory unit 13 and the lower-floor accessory unit 12 can be freely changed. As described above, since it is not necessary to align the positions of the pillars 5 of the upper floor auxiliary unit 13 and the lower floor auxiliary unit 12, it is possible to eliminate the need to change the structures of the upper floor auxiliary unit 13 and the lower floor auxiliary unit 12. . Therefore, as described above, the degree of freedom in arranging the upper floor auxiliary unit 13 and the lower floor auxiliary unit 12 vertically can be improved.

In addition, by vertically connecting and fixing the overlapping portion 14 between the lower floor incidental unit 12 and the upper floor incidental unit 13 using the upper and lower floor fixed joints 15, the lower floor incidental unit 12 and the upper floor incidental unit 12 are connected by the upper and lower floor fixed joints 15. It can be fixed with the accessory unit 13 .

(Effect 2) In the unit building 1, the bottom of the protruding portion 31 of the upper floor accessory unit 13 is supported and fixed to the upper floor unit 3 from below via the joint fitting 32 attached to the upper floor unit 3. You can let it be. As a result, the protruding portion 31 of the upper floor accessory unit 13 can be supported and fixed only by attaching the joint metal fitting 32 to the upper floor building unit 3, so that the protruding portion 31 of the upper floor accessory unit 13 is not tilted or attached to the upper floor accessory. It is possible to effectively prevent the unit 13 from falling. Further, when installing the upper-floor incidental unit 13, the joint fitting 32 can temporarily hold (or position) the bottom portion of the protruding portion 31 of the upper-floor incidental unit 13, thereby improving workability. Moreover, since the joint fitting 32 is simply attached to the upper building unit 3, the cost is not required.

(Effect 3) The lower floor incidental unit 12 and the upper floor incidental unit 13 may have different lengths L1 and L2 in the long side direction 8 from each other. This makes it possible to freely combine and install the lower floor auxiliary unit 12 and the upper floor auxiliary unit 13 having different lengths L1 and L2 in the long side direction 8 . Therefore, depending on how to combine the lower floor auxiliary unit 12 and the upper floor auxiliary unit 13 having different lengths L1 and L2 in the long side direction 8, the long side of the unit building 1 (lower floor unit 2 and upper floor unit 3) 6a, 7a) can have various variations in appearance, and a space can be created (upper or lower side of the protruding portion 31 of the lower floor accessory unit 12 or the upper floor accessory unit 13). By doing so, it is possible to create a peculiar feeling of shade in the unit building 1, and to improve the appearance quality of the unit building 1. - 特許庁

1 unit building 2 lower floor unit 3 upper floor unit 4 vertical direction 6 ceiling beam 6a long side 7 floor beam 7a long side 8 long side direction (extension direction)
12 lower floor incidental unit 13 upper floor incidental unit 14 overlapping portion 15 upper and lower floor fixed joints 31 protruding portion 32 joint fitting L1 length L2 length

Claims (1)

A unit building in which rectangular parallelepiped lower floor units and upper floor units are installed above and below,
A lower floor accessory unit is attached to the outer surface of the long side of the lower floor building unit,
An upper floor accessory unit is attached to the outer surface of the upper floor building unit on the long side,
The upper floor accessory unit is fixedly held by the upper floor building unit,
The lower-floor incidental unit and the upper-floor incidental unit are arranged vertically with at least a portion thereof overlapping in the long side direction,
The lower-floor incidental unit and the upper-floor incidental unit are vertically connected and fixed by an upper-floor fixed joint at a position where the overlapping portion avoids the pillar of the upper-floor incidental unit ,
The upper-floor incidental unit has a protruding portion protruding in the long-side direction with respect to the lower-floor incidental unit,
The protruding portion of the upper floor accessory unit has a bottom portion attached to the upper floor unit from below via a joint fitting attached to the outer surface of the floor beam on the long side of the upper floor unit. supported and fixed,
The lower-floor incidental unit and the upper-floor incidental unit have different lengths in the long side direction, and the upper-floor incidental unit is longer than the lower-floor incidental unit so that the upper-floor incidental unit extends beyond the upper-floor incidental unit. A unit building characterized by forming parts .

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