JP2843016B2 - Folding stair unit box and building using it - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable staircase unit box in a unit building such as a field office, a warehouse, an event hall, a work hut, and particularly a unit building used as a temporary building, and a unit using the same. The present invention relates to a building and an assembling method thereof.

[0002]

2. Description of the Related Art Unit buildings of this type are generally removed after construction and reused many times, and the service period at one location is often several months, and is extremely short, such as one day. May be short-term. Therefore, simplicity of assembly,
There is a strong demand for transportability, storage properties, freedom of unit rearrangement, and the like, and a combination of any number of folding unit boxes is used. When the stairs are provided, the outer stairs are often used, but the inner stairs may be required in order to be able to go up and down without being exposed to the weather and to avoid snowfall. In response to such demands, a method in which the outer stairs are covered in a duct shape has been proposed, but it takes time and effort to assemble, has a poorer appearance than the inner stairs, and has a poor use efficiency of the space under the stairs. . For this reason, a foldable staircase unit box in which a part of the foldable unit box in the general part is modified exclusively for stairs to provide an inner staircase is employed.

FIG. 15 shows an example of the configuration and an assembling procedure. This staircase unit box is mainly composed of a floor frame 52 having a column frame 53 connected to both ends so that the column frame 53 can be turned upside down. After the floor frame 52 is transported to the site in a folded state (FIG. 15A), (FIG. 15B). Next, an opening 54 serving as a lift port
The roof frame 54 having “a” is hung by the crane 57 (FIG. 15C), placed between the upper ends of the column frames 53 on both sides, and fixed by bolting to form the unit box 51 (FIG. 15D). Next, the stairs 55 are suspended by the crane 57 and lowered from the opening 54a of the roof frame 54 into the unit box 51 (FIG. 15 (E)). And guided to a predetermined position (FIG. 15 (F)), and fixed with bolts and pins (FIG. 15 (G)). This unit box 51
The second-floor unit box 56 is placed on the top, and fixed to the first-floor unit box 51 (FIG. 15H). The stairs 55 can be installed by using the crane 57 as described above, or by the worker M carrying the stairs 55 into the unit box 51 by hand as shown in FIG. As described above, a method of fixing with bolts or pins may be employed.

[0004]

However, in the method shown in FIG. 15, when the stairs 55 are hung by the crane 57 and dropped from the opening 54a of the roof frame 54 (FIGS. (E) and (F)), the stairs 55 are used. Swings, the opening 54a
Difficult to put in. In particular, when there is a wind, the swing becomes large. Therefore, it takes time to set up the stairs, and the operator of the crane 57 requires advanced technology,
It is difficult to secure drivers. In addition, since it is dangerous for the worker M to guide the stairs 55 under the crane 57,
It is necessary to avoid as much as possible. Even when guiding to a predetermined position using a hand, the stairs 55 have a considerable weight, and there is a risk of injury when the user steps on the floor. FIG.
It is not preferable from the viewpoint of safe work in consideration of the weight of the stairs 55 that the worker M manually carries the stairs 55 into the unit box 51 and installs the stairs 55 as shown in FIG.

SUMMARY OF THE INVENTION The present invention solves such a problem, and can be assembled safely and quickly without being affected by wind and the like, and is also provided with a folding staircase unit box which is convenient for transportation, and using the same. It is an object to provide a unit building and an assembling method thereof.

[0006]

A foldable staircase unit box according to the present invention has a substantially rectangular floor frame, and each of the foldable staircase units is connected to an end of the floor frame so as to be capable of turning up and down and overlapped on the upper surface of the floor frame. And a staircase, a staircase pillar, and a roof frame having an opening serving as an elevator located above the staircase and installed between upper ends of the pillar frame. The stairs are connected to the floor frame at a lower end thereof so as to be capable of turning up and down, and can be folded so as to overlap the upper surface of the floor frame. The upper end of the stair post is rotatably attached to the side spar of the stair, and the lower end is connected to the floor frame with the stairs raised. According to this configuration, the floor frame, the stairs, and the stair post can be raised and fixed after the floor frame is installed on the site in a state where the post frame, the stairs, and the stair post are folded. In this way, the stairs have their lower ends connected to the floor frame in advance and can be erected with this connection part as a fulcrum, and the stair columns also have their upper ends connected to the stairs and their lower ends connected to the floor frame. The stairs can be easily and quickly set up. When installing the roof frame on the pillar frame, it is usually necessary to insert the upper end of the stairs into the opening that will be the elevating opening, but the insertion depth is shallow, and at this time the stairs are fixed with stair columns. Because it is stable, it can be easily installed even if it shakes due to wind or the like. When the building is used, the space under the stairs is inside the building, so it can be used as a storage room.

[0007] In the folding staircase unit box having this configuration, the roof frame and the floor frame may be provided with outer wall panel fitting portions for fitting the upper and lower ends of the outer wall panels on the girder surface and the mating surface, respectively. In this configuration, the outer wall panel can be easily attached and detached. For example, the outer wall panel can be removed in summer and the staircase unit box can be used like an outer staircase.

The unit building according to the present invention comprises a foldable staircase unit box having the above-mentioned structure, a general unit box adjacent to the staircase unit box in a girder plane, and each of the staircase unit box and the general unit box being overlaid on the staircase unit box. It consists of a unit box on the stairs and a general unit unit box on the upper floor. The general unit box and the unit box on the stairs on the upper and lower floors are a substantially rectangular floor frame, and a pair of upper and lower ends of the floor frame which are connected to both ends of the floor frame so that they can be turned upside down and foldable. And a roof frame installed between upper ends of the pair of pillar frames. The width of the wedge face of the staircase unit box and the width of the wedge face of the unit box on the staircase are half of the width of the wife face of the general unit box on the upper and lower floors. In this way, the general unit unit box and the staircase unit box have the same folding structure, and the staircase unit box is provided, so that the general part and the staircase can be unified in appearance design, and a high-quality unit is provided. Can be a building. Also in the assembling work, the work can be unified and the assembling can be performed efficiently as compared with a case where the outer wall and the roof are provided in a duct shape on the outer stairs. In addition, the outer wall panel can be shared by the general section and the stair section, and there is no need to create an outer wall panel dedicated to the stair section. When the general unit box and the staircase unit box are unit boxes having the same basic configuration, the foundation can be shared and the construction work of the foundation such as leveling can be facilitated.
Further, by setting the stair unit box to half the width of the wife surface of the general unit box, the stair unit box has an appropriate width exclusively for the stairs. In other words, in this type of unit building, the width of the wife face of the unit box is generally 240 mm from the limit width of truck transportation according to the road traffic regulations.
It is about 0 mm, but if the width of the staircase unit box is half that, it will be 1200 mm, which is just appropriate for installing the stairs inside. In order to use a staircase unit box with an appropriate width exclusively for stairs and a basic structure common to the general unit unit box in the same staircase unit box, as an arrangement pattern of stair positions,
Various arrangement patterns such as a right end, a left end, and an intermediate portion of the building are adopted, and in that case, no useless space is generated inside the building. Therefore, the number of stair unit boxes can be reduced. Moreover, when the truck is folded and transported by truck, the half-width staircase unit box and the half-width staircase unit box are also arranged side by side, so that they have the same width as one general unit box and overlap with the general unit box. And can be transported with good volume efficiency. Also, because the stairs can be folded, there is no conflict with the height restrictions for trucking.

In the unit building having this configuration, a general unit box and an upper floor general unit box which are respectively adjacent to the general unit unit box and the upper floor general unit unit box on the wife surface may be provided. Thus, a unit building that is long in the girder direction can be constructed. Further, the general unit box may be arranged on both sides of the stair unit box, and the upper floor general unit box may be arranged on both sides of the stair unit box. In the case of this configuration, the stairs are located in the middle of the unit building, and it is possible to enter the left and right rooms from the stairs.

The method for assembling a staircase unit box according to the present invention is a method for assembling the foldable staircase unit box having the above-mentioned structure, comprising the steps of installing a floor frame, erecting pillar frames on both sides, erecting a stair by a crane, and stairs This is a method of installing the roof frame on the column frame after the columns are erected. According to this assembling method, the stairs are erected without a roof frame,
The erecting of the heavy stairs can be easily done by using a crane without human power and without the roof frame being in the way.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. As shown in the explanatory view of the assembling procedure in FIG. 1, the folding staircase unit box 1 is connected to a substantially rectangular floor frame 2 and to both ends of the floor frame 2 so as to be capable of turning up and down. A pair of pillar frames 3 and 3 foldable in an overlapping state on the upper surface of the floor frame 2 and a floor frame 2 which is connected to the floor frame 2 at the lower end so as to be capable of turning up and down.
Stairs 4 that can be folded in an overlapping state on the upper surface of
And The roof frame 7 is attached to this. The upper end of the stair post 5 is rotatably attached to the side beam 6 of the stair 4,
The lower end is connected to the floor frame 2 with the stairs 4 raised. The lower end of the stair post 5 is temporarily fixed to the outside of the side beam 6 of the stair 4 with a bolt (not shown). The floor frame 2, the pillar frame 3, the stairs 4, the stair pillars 5, and the roof frame 7 are all made of steel.

As shown in the plan view and the front sectional view of FIGS. 5A and 5B, the floor frame 2 has a plurality of floor beams 9 made of channel steel. These are connected by floor beams 10, and a floor panel (not shown) is provided on the upper surface thereof. An end plate 9 a is provided at an end of each floor girder 9, and an L-shaped connecting piece 11 for connecting the lower end of the column frame 3 is provided to protrude from the end plate 9 a. A pair of brackets 14 project from a central portion of the floor frame 2 at one end side via a stair support beam 13 extending between the large beams 9. Is connected to the floor frame 2 so as to be capable of turning up and down. Floor frame 2
In the position offset from the middle part of the to the other end,
A pair of pillar mounting pieces 16 and 16 are provided via a step pillar supporting beam 15 extending between the nine columns, and the lower end of the step pillar 5 is fixed to the pillar mounting piece 16 with bolts.

As shown in the plan view, front view, and side view in FIGS. 6A to 6C, the column frame 3 has a pair of columns 17, 17 each formed of a square pipe, and a portion between the upper end and the lower end thereof. And an upper frame member 18 and a lower frame member 19 each formed of a shape steel. The lower end of the pillar 17 is connected to the connecting piece 11 of the floor frame 2 by a connecting pin 2 as shown in an enlarged manner in FIG.
At 0, it is connected so that it can be turned upside down. Bolts and nuts or the like are used for the connection pins 20, and are inserted through the pin insertion holes 11 a and 17 a provided in the connection piece 11 and the pillar 17. The rotation fulcrum position of the connecting pin 20 is arranged above the floor frame 2 so that the column frame 3 can be folded in a state parallel to the floor frame 2 as shown in FIG. The column 17 is joined to the end plate 9a of the floor frame 2 with bolts 21 in a state of being erected as shown in FIG.
It is fixed in the upright state. The work notch 17 is formed on the outer surface of the lower end of the column 17 so that the bolt 21 can be tightened.
b is provided. At the upper end of each pillar 17, a positioning boss 22 is protruded as shown in FIG. 6, and is fitted into a positioning hole (not shown) of the roof frame 7 when joining a roof frame 7 described later. .

The stairs 4 are shown in FIGS. 8A and 9C,
As shown in (D), outside the lower ends of the side girders 6 on both sides,
A connecting piece 23 is provided, and this connecting piece 23 is attached to the floor frame 2.
The stairs 4 are connected to the floor frame 2 at the lower end thereof so that the stairs 4 can be turned upside down and rotatably. Bolts and nuts are used for the pins 12. Also, as shown in FIG. 8, a connecting piece 24 is provided outside the upper part of the side beam 6 of the stairs 4, and a connecting piece 25 at the upper end of the stair post 5 is bolted to the connecting piece 24. Thus, the upper end of the stair post 5 is rotatably attached to the side beam 6 of the stair 4. At the lower end of the stair post 5, a mounting piece 26 connected to the column mounting piece 16 of the floor frame 2 is provided. By bolting the mounting pieces 26 to the column mounting pieces 16 of the floor frame 2, the stairs 4 are supported on the floor frame 2 by the stair columns 5 in a state where the stairs 4 are inclined.
As shown in the side view and the front view in FIGS. 9A and 9B, a connecting piece 27 is provided at the upper end of the side beam 6 of the stairs 4.
The connecting piece 27 is bolted to a beam that serves as an opening edge of the opening 8 of the roof frame 7 described later.

As shown in FIGS. 1 (E) to 1 (G), the roof frame 7 is formed by frame-shaped ceiling ceiling beams 9 made of channel steel. Opening 8. A roof panel 28 made of a corrugated iron plate such as a deck plate is stretched on the upper surface of the roof frame 7 excluding the opening 8, and a ceiling panel (not shown) is stretched on the lower surface. As shown in FIG. 11, a groove-shaped outer wall panel fitting portion 30 </ b> A on the lower surface of the roof frame 7 is attached along the ceiling girders 9 on the girder side to the upper end of the outer wall panel 32 on the girder surface in a fitted state. , 30B are provided. Also in the floor frame 2 described above, groove-shaped outer wall panel fitting portions 31A and 31B for attaching the lower end of the outer wall panel 32 on the girder surface in a fitted state are provided. In the example shown in the drawing, only the outer wall panel fitting portions 30A and 31A on the outdoor side of the unit building have outer wall panels 3 only.
2, and the outer wall panel is omitted on the side adjacent to the other unit boxes. When the stairs 4 are to be used as outdoor stairs in summer, for example, the outer wall panel 32 is removed from the outer wall panel fitting portions 30A and 31A. Further, the outer wall panel 32 may have an opening serving as a doorway or a window at an appropriate place. In the example of FIG. 12, the outer wall panel 32 on the wife's face is
9 and the opening 29 on the wife's face and the stairs 4
Between the lower end and the entrance room. Further, an opening 29 in the shape of a sweeping window formed by a sliding door is provided on the girder surface corresponding to the lower part of the stairs or the landing part on the stairs.

The assembly of the foldable staircase unit box 1 having this structure is performed in the following procedure. As shown in FIG. 1 (A), a floor frame 2 in which a pair of pillar frames 3, 3, a staircase 4, and a staircase pillar 5 are connected in a folded state is placed at an installation location on the site. Next, the pillar frames 3 and 3 on both sides are raised from the floor frame 2 (FIG. 1B), and the lower end of the pillar 17 and the floor frame 2 are joined to the end plate 9a of the floor beam 9 (FIG. 7) with bolts 21. I do. Thereafter, the upper part of the stairs 4 is lifted by the crane 70, so that the stairs 4 are raised upright on the floor frame 2 (FIG. 1 (C)). At a predetermined angle (for example, 45 degrees), the bolt temporarily fixing the lower end of the stair post 5 is removed from the side spar 6, and the connecting piece 26 at the lower end of the stair post 5 is made vertical as shown in FIG. It is bolted to the corresponding column mounting piece 16 (FIG. 8) of the floor frame 2.
In addition, the stairs 4 are lifted via hanging bolts (not shown) attached to the side beams 6 of the stairs 4, and the hanging bolts are later removed before attaching the stair handrails.

Next, the roof frame 7 is suspended by the crane 70 (FIG. 1E). At this time, if the stairs 4 have a height at which the upper end protrudes from the roof frame 7,
The roof frame 7 is lowered so that the upper end of the staircase 4 fits into the opening 8 of the roof frame 7. Thus the roof frame 7
After hanging down, the roof frame 7 is bolted to the upper end of the two-post frame 3 (FIG. 1 (F)). Further, the mounting piece 27 (FIG. 9) at the upper end of the side beam 6 of the stairs 4 is bolted to the beam at the edge of the opening 8 of the roof frame 7. Thereby, the staircase unit box 1 is completed (FIG. 1 (G)). After this,
The outer wall panel 32 (FIG. 11) is erected. In addition, staircase pillar 5
May be removed after bolting the upper end of the stairs 4 to the beam of the roof frame 7. If the staircase unit box 1 has a stairwell 4 and a space above the entrance, there is no beam in the middle of the roof frame 7 in the girder direction, so that a crane is used instead of the beam. A small beam-shaped hanging jig (not shown) is attached to the roof frame 7. After the roof frame 7 is hung down as shown in FIG. 1 (F), the hanging jig is removed.

An example of a unit building using the stair unit box 1 will be described. This staircase unit box 1
Is installed in the general unit box 41 adjacent to the girder surface, for example, as shown in FIG. On the staircase unit box 1, the staircase upper unit box 42 is stacked and installed, and on the general unit box 41, the upper floor general unit box 43 is stacked and installed. Thus, a unit building 44 is configured.

General unit boxes 41, 4 on upper and lower floors
3 and the unit unit 42 above the stairs are not shown in the figure, but are connected to the substantially rectangular floor frame 2 in the stair unit box 1 and both ends of the floor frame 2 so as to be able to turn up and down. A pair of pillar frames 3 and 3 that can be folded in an overlapping state on the upper surface of the floor frame 2;
Members corresponding to the roof frames 7 installed between the upper ends of the pair of column frames 3 are provided. The general unit boxes 41 and 43 on the upper and lower floors have the same configuration, and either of them may be used for the upper floor or for the first floor. The width B0 of the wife's face of the general unit boxes 41 and 43 on the upper and lower floors needs to be a width (2,500 mm or less) that can be carried on a truck according to the road traffic regulations, and is 2400 mm in this example. Wife width B1 of stair unit box 1 and stair unit box 42
Is half of the width B0 of the wife face of the general unit boxes 41 and 43, and is 1200 mm. As described above, when the width B1 of the staircase unit box 1 is 1200 mm, the width becomes just appropriate for installing the staircase 4 inside. When the stair unit box 1 and the stair unit box 42 are transported to the site by truck, as shown in FIG.
Both can be placed side by side on a truck in a folded state and transported, and transport efficiency is good. Further, it can also be transported while being superimposed on the general unit boxes 41 and 43 (FIG. 14).
(B)). When only the staircase unit box 1 and the staircase unit box 42 are transported, FIG.
As shown in (C), it can be transported side by side in a box-like assembly state, but the stairs 4 may still exceed the regulation height (3.8 m) of the road traffic rules when assembled. In that case, the stairs 4 need to be folded, and the stairs 4 are raised up at the site. At the time of this erecting operation, it is necessary to remove the roof frame 7.

FIG. 3A is a schematic perspective view of the whole of the unit building 44. FIG. In this unit building 44, two general unit boxes 41 and 43 on the upper and lower floors are arranged side by side, and a stair unit box 1 and a stair unit box 42 are installed on the right side thereof. FIG. 4A is a plan view of the first floor portion of the unit building 44, and FIG. 4B is a plan view of the second floor portion. The end face of the staircase unit box 1 at the lower end of the staircase 4 is an entrance,
Entrance doors are provided. In this unit building 44, the user goes upstairs from the stairs 4 and turns left to reach the room on the upper floor. Since the staircase unit box 1 has a width just enough to accommodate the staircase 4 as described above, FIG.
As shown in FIG. 13B, it may be arranged on the left side of the general unit box 41 so as to enter the room with a right turn, or as shown in FIG. And a unit building 44A that can bend both.

Further, in these unit buildings 44 and 44A, as shown in an example in FIG. 13B, a plurality of general unit boxes 41 and 43 on the first and second floors are arranged adjacent to each other on the wife's face. You may connect and install in a girder direction. In the example shown in the figure, the staircase unit box 1 and the staircase unit box 42 have a shape protruding from the whole of the building 44. However, the half width arranged in the girder direction adjacent to the staircase unit box 1 and the staircase unit box 42 at the end face thereof. A unit box (not shown) may be installed. FIG.
In the unit building 44A in which the staircase unit box 1 is arranged in the middle of the general unit boxes 41 and 43 as shown in FIG. 3 (A), the case where a plurality of the general unit boxes 41 and 43 are connected in the girder direction is similar to the above. Install a half-width unit box in This half-width unit box has the same width in the wife direction as the staircase unit box 1 and has the same configuration as the general unit boxes 41 and 43 in other respects. When the unit boxes 41 to 43 are connected in the girder direction as in these examples, one column frame in the adjacent portion of the end face of the unit boxes 41 to 43 may be used for both unit boxes. That is, a unit box having the pillar frame 3 only at one end of the floor frame 2 may be used.

The foldable staircase unit box 1 of the present invention can be used for a unit building having three or more floors. FIG. 13C shows a three-story unit building 44B.
This is an example applied to. On the first floor portion, the half width unit box 41A and the stair unit box 1 are sequentially arranged and installed on the girder surface of the general unit box 41. On the second floor portion, a stair unit unit 42 is placed above the stair unit box 1 and on the side thereof. A staircase unit box 1 is installed in the area. The staircase unit box 1 on the second floor is installed such that the stairs rise in the staircase unit box 1 on the first floor in the opposite direction. On the third floor, a staircase unit box 42 is installed on the staircase unit box 1 on the second floor, and a half-width unit box 43A is installed on the staircase unit box 42. FIG. 13D shows 3
FIG. 13 shows an example in which a central staircase is used as a story.
As in the example of (C), the staircase unit box 1 on the first and second floors, the half-width unit box 41A, and the unit box 42 on the stairs are combined. However, in this example, the unit box 42A above the stairs on the third floor has the same width in the wife direction as the general unit boxes 41 and 43, and straddles the unit box 1 on the second floor and the unit box 42 above the stairs. Is installed.

As can be seen from the examples shown in FIGS. 3 and 13, the general unit boxes 41 and 43 and the staircase unit box 1 have the same folding structure, and the unit box 42 on the stairs provides various types. In the unit building of the scale, the unified appearance design is adopted for the general part and the stairs part, and the unit building 4 with a sense of quality
4, 44A and 44B. Also in the assembling work, the work can be unified and the assembling can be performed efficiently as compared with a case where the outer wall and the roof are provided in a duct shape on the outer stairs. In addition, the outer wall panel 32 can be shared by the general section and the stair section, and it is not necessary to form an outer wall panel dedicated to the stair section.

[0024]

The folding staircase unit box according to the present invention comprises a floor frame, a column frame which is connected to both ends thereof so as to be able to turn upside down and is foldable, and a floor frame which is rotatably connected to the floor frame at the lower end. It has a stair that can be folded and folded, and a stair post whose upper end is rotatably attached to the side spar of this stair, so that it can be assembled safely and quickly without being affected by wind or the like. Yes, it is also convenient to carry. When the outer wall panel fitting portion is provided on the roof frame and the floor frame, the outer wall panel can be easily attached and detached. For example, the outer wall panel can be removed in summer and used like an outer staircase. The unit building of the present invention combines the above-mentioned foldable staircase unit box with the same foldable general unit unit box and unit unit on the stairs, and sets the width of the staircase unit box and the unit box on the staircase to the general unit. Since the width of the unit box is half of the width of the unit box, it is possible to achieve a uniform appearance between the general section and the stairs section. Is efficient. According to the method of assembling the stair unit box of the present invention, when assembling the stair unit box, the stairs are erected without a roof frame. It can be raised easily using a crane without disturbing,
Safe and quick assembly can be performed.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an assembling procedure of a folding staircase unit box according to an embodiment of the present invention.

FIG. 2 is a perspective view schematically showing a unit building using the staircase unit box.

FIG. 3A is a schematic perspective view of the entire unit building.
(B) is a schematic perspective view of a unit building in which the arrangement of the stair unit boxes is changed.

FIG. 4A is a plan view of a lower floor portion of the unit building,
(B) is a top view of the upper floor part.

FIG. 5A is a plan view of a floor frame constituting the staircase unit box, and FIG. 5B is a front sectional view of the floor frame.

FIGS. 6A to 6C are a plan view, a front view, and a side view of a pillar frame forming the staircase unit box.

FIGS. 7A and 7B are enlarged perspective views of a connecting portion between the floor frame and the pillar frame in a standing state and a folded state of the pillar frame, respectively.

FIG. 8A is a side view of a staircase constituting the staircase unit box, and FIG. 8B is a front view in which a part of the staircase is broken.

9A is a side view of the upper end of the staircase, FIG. 9B is a rear view of the same staircase, FIG. 9C is a side view of the lower end of the staircase, and FIG. It is arrow sectional drawing.

10A is a side view showing a connection structure of a lower end of the stairs to a floor frame, and FIG. 10B is a front view thereof.

FIG. 11 is a vertical cross-sectional view of the staircase installation portion.

12A is a horizontal cross-sectional view of a stair unit box superimposed on the stair unit box, and FIG. 12B is a horizontal cross-sectional view of the stair unit box.

FIGS. 13A to 13D are perspective views showing a schematic configuration of each example of a unit building using the staircase unit box.

FIG. 14 is an explanatory view of transporting the stair unit box to a site.

FIG. 15 is an assembly explanatory view of a conventional example.

FIG. 16 is an explanatory diagram of another method of stair mounting work in the conventional example.

[Explanation of symbols]

1 ... Foldable stair unit box, 2 ... Floor frame,
3 ... pillar frame, 4 ... stairs, 5 ... stair pillars, 6 ... side girders, 7
... roof frame, 8 ... opening, 30A, 30B, 31A,
31B: outer wall panel fitting portion, 32: outer wall panel, 41,
43: General unit box, 42: Unit box on stairs, 44: Unit building

Claims (5)

(57) [Claims] 1. A substantially rectangular floor frame, a column frame connected to an end of the floor frame so as to be capable of turning up and down and being foldable so as to overlap an upper surface of the floor frame, and a lower end of the floor frame. A stair that is rotatably connected with the floor frame and can be folded in an overlapping state on the upper surface of the floor frame, and an upper end is rotatably mounted on a side spar of the stair and a lower end of the floor frame is raised when the stairs are raised. A folding stair unit box, comprising: a stair post connected to the stairs; and a roof frame having an opening serving as a lift positioned above the stairs and installed at an upper end of the post frame. 2. The foldable stair unit box according to claim 1, wherein said roof frame and said floor frame are provided with outer wall panel fitting portions for respectively fitting upper and lower ends of said outer wall panel in a fitted state. 3. The foldable stair unit box according to claim 1 or 2, a general unit box adjacent to the stair unit box on a girder surface, and a stair unit box and a general unit unit box, respectively. A unit box on top of the stairs and a general unit unit box on the upper floor, which are installed in an overlapping manner, wherein the general unit unit box on the upper and lower floors and the unit box on the stairs are respectively raised on a substantially rectangular floor frame and both ends of the floor frame. A pair of pillar frames that are pivotably connected to each other and are foldable in an overlapping state on the upper surface of the floor frame, and a roof frame installed between upper ends of the pair of pillar frames; and the stairs The width of the wife face of the unit box and the unit box on the stairs shall be the A unit building that is half of. 4. The unit building according to claim 3, wherein a general section unit box and an upper floor general section unit box which are respectively adjacent to the general section unit box and the upper floor general section unit box on a wife surface. 5. The method for assembling a foldable stair unit box according to claim 1, further comprising: installing a floor frame.
A method for assembling a staircase unit box, comprising: mounting the roof frame on a pillar frame after erecting the pillar frames on both sides, erecting the stairs by a crane, and erecting the stair pillars.