JP2000129881A - Stair unit and unit building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stair unit capable of being mounted between building units by reducing manhours in a construction field and a unit building equipped with the stair unit. SOLUTION: A stair unit 30 is constituted such that it is mounted between building units 11 and 12 adjacent to a unit building. It is divided into a first stair unit 31 mounted to the inside of one building unit 12 at a factory in advance and a second stair unit 32 connected to the first stair unit 31 and mounted to the other building unit 11 to constitute, and a tread and/or a riser 315 in a joint section are monolithically mounted at a construction field.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a staircase unit,
The present invention relates to a unit building having the stair unit.

[0002]

2. Description of the Related Art Conventionally, as a staircase structure of a unit building which is mounted so as to straddle between adjacent building units, for example, it is described in JP-A-8-209876.
The staircase structure described in the above publication constitutes a large part of the stairs, and a unit unit previously incorporated in a building unit in a factory,
At least one of the upper and lower parts of this unit,
And a plate-shaped portion which is attached on site and forms the remaining portion of the stairs. The plate-shaped portion is a top plate or a bottom plate of the stairs and a riser plate. According to the staircase structure of the unit building, most of the stairs production work can be performed at the factory,
On-site work is reduced.

[0003] Also, in Japanese Patent Application Laid-Open No. 7-292916,
The structure around the stair unit is described. According to the staircase unit described in the above-mentioned publication, both ends of the step board are attached to the slab girder via the receiver. In assembling the staircase unit, a receiver formed by bending a metal plate is joined to a girder made of a mold steel by welding, and a step plate is mounted on the receiver.

[0004]

However, the conventional staircase structure described in the above-mentioned Japanese Patent Application Laid-Open No. 8-209876 has a plate-like portion which is a step plate and a riser plate which constitute the rest of the stairs. Since it is mounted on site, there is a problem that the man-hour on site increases as the number of steps in the remaining portion increases. Further, in the conventional staircase unit described in the above-mentioned Japanese Patent Application Laid-Open No. 7-292916, since the receiving member of the step plate is joined to the slab by welding, welding distortion occurs and the slab is curved. There is a problem that it is difficult to secure dimensional accuracy.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and provides a staircase unit that can be mounted across building units while reducing man-hours on site, and a unit including the staircase unit. A first problem is to provide a building, and a second problem is to provide a stair unit having good dimensional accuracy and a unit building having the stair unit.

[0006]

The inventions described in claims 1 and 2 have been made in order to solve the first problem, and the inventions described in claims 3 and 4 have been described in the second invention. This was done to solve the problem.

According to the first aspect of the present invention, there is provided a staircase unit which is attached across a building unit adjacent to a unit building constructed by arranging a plurality of box-shaped building units vertically and horizontally. A first stair unit attached to one of the building units in advance, and a second stair unit connected to the first stair unit and attached to the other adjacent building unit. A step plate and / or a riser plate at a connection portion of the second stair unit are attached and integrated at a building site.

[0008] In the first aspect of the present invention, the second staircase unit may be pre-fabricated in the same manner as the first staircase unit.

According to a second aspect of the present invention, the staircase unit according to the first aspect is mounted so as to straddle between adjacent building units, and an upper-floor building unit is installed and connected on the building unit. A unit building characterized by:

In the unit building according to claim 2, the building unit is formed in a box shape from a pillar, a ceiling beam, and a floor beam, and the stair unit is provided in a building unit in which a part of the ceiling beam is omitted. It is preferable that a building unit having a floor beam is installed and connected on a building unit in which a part of a beam is omitted. Then, the space on the stairs can be taken high and wide by the omission of the ceiling beam, and the building unit with the floor beam reinforces the weak part of the building unit with a part of the ceiling beam omitted, and has the necessary strength. Become.

According to a third aspect of the present invention, there is provided a staircase unit assembled by attaching a step board to a girders via a receiving member and attaching a riser plate between vertically adjacent step plates. Pre-drilled holes for fixtures in advance,
The receiving device is characterized in that the receiving device is fixed to the slab by a fixing device at the position of the prepared hole. The above fixture is
Rivets, screws, bolts, etc., as long as they are dry fixing methods other than welding.

According to a fourth aspect of the present invention, in a unit building constructed by arranging a plurality of box-shaped building units vertically and horizontally, the staircase unit according to the third aspect is attached to the building unit. Features.

(Operation) The staircase unit according to claim 1 is
Since only the steps or risers at the connecting portions of the first and second stair units are installed at the construction site, it is possible to reduce the man-hours at the construction site and install the stair units across the building units. it can. Accordingly, the stair unit can be installed so as to straddle between adjacent building units, so that the stair unit can be installed so as to occupy a large floor area of the two building units, and the stairs can have a gentle slope. Further, the connecting portions are connected by a step board or a riser plate, and the connecting portions are not apparent in appearance, so that the design is neat.

According to the first aspect of the present invention, if the second stair unit is factory-installed in advance similarly to the first stair unit, the number of steps on site can be further reduced.

The unit building according to the second aspect is the first aspect.
Since the described staircase unit is attached across the adjacent building units, the construction period at the construction site can be shortened.

In the staircase unit according to the third aspect, since the receiving member is fixed to the slab by the fixing member, the dimensional accuracy is higher than that of welding in which distortion tends to occur. In addition, since the pilot hole of the fixing tool is formed in advance in the slab and the receiver, the positioning of the receiver is facilitated.

The unit building according to the fourth aspect is the third aspect.
Since the described stair unit is attached to the building unit, the dimensional accuracy of the stair unit is improved so that the stair unit can be easily attached and the accuracy of the building is also improved.

[0018]

Embodiments of the present invention will be described with reference to the drawings. 1 to 3 show a first embodiment of the present invention. FIG. 1 is a sectional view of a stair unit, and FIG.
(B) is a side view of the main part as viewed from the direction of arrow Z in (a), and FIG. 3 is an explanatory view of the unit building. FIG. 4 is a perspective view showing a modification of the first embodiment and showing a main part of the staircase unit. 5A and 5B show a second embodiment of the present invention. FIG. 5A is a side view of the stair unit, and FIG. 5B is an enlarged perspective view of a portion A in FIG. FIG. 6 is a perspective view of a main part of a staircase unit, which is a modification of the second embodiment.

The staircase unit according to the first embodiment and a unit building to which the staircase unit is attached will be described.
In FIG. 3, reference numeral 101 denotes a unit building, which is a combination of a plurality of box-shaped building units 11 to 22.
Building units 21 and 22 on the second floor are installed and connected on the building units 11 and 12 on the first floor.

As shown in FIGS. 1 and 3, a stair unit 30 is mounted in the unit building 101. The stair unit 30 is of an upward bending type, and includes a first stair unit 31 and a second stair unit 32, which are two units. Then, it is attached so as to straddle the adjacent building units 11 and 12 on the first floor, and is provided over the building unit 22 on the second floor.

The fourth to eleventh steps of the staircase unit 30 are the first staircase unit 31 as one unit, which is attached to the building unit 12 by attaching a factory. The first staircase unit 31 is composed of the sasara girders 3 on both sides.
11, a step board 312, and a riser 313, and a storage portion is provided inside.

The first to third steps of the stair unit 30
In the second staircase unit 32, a base plate 314 is provided with a step plate and a riser plate to form a unit. The second staircase unit 32 is loaded on the building unit 11, the building unit 11 and the building unit 12 are installed and connected at the building site, and then moved and joined to the first staircase unit 31. At this time, as shown in FIG. 2, the connecting riser 315 at the connection between the first staircase unit 31 and the second staircase unit 32 is connected to the third stepboard of the second staircase unit at the construction site. It is inserted between and integrated with the fourth step plate of the stair unit.

The 12 steps 34 of the stairs are made into parts,
It is installed above the first staircase unit 31 at the factory stage. The riser 33 and the frame portion of the uppermost step 33 of the stairs are made into parts, and are installed after connecting and connecting the building unit 22 on the second floor.

The stair unit 30 has a tread dimension (T).
Is 209 mm, the rise size (R) is 218 mm,
The stairs are gently sloped. Generally, preferred stairs that are safe and easy to ascend and descend are, according to the technical standards of housing subject to the preferential treatment of interests of the Japan Housing Finance Corporation, the dimension (T) of the tread is 195 mm or more and the R / T is 22/21 or less. And 550
mm ≦ T + 2R ≦ 650 mm.
Of the stair units 30 satisfy this criterion.

As shown in FIG. 1, a sloping ceiling plate 42 is provided at the upper part of the stair unit 30 at the building units 11 and 12 where the ceiling beams are omitted, as shown in FIG. The ceiling height is higher than when there is a ceiling beam. Thus, when the user descends from the stairs by providing the inclined ceiling plate 42, there is no feeling of oppression.

(Operation of Embodiment 1) The staircase unit 30 of this embodiment includes a first staircase unit 31 and a second staircase unit 3.
Since the connecting riser plate 315 at the connection portion 2 is simply attached at the construction site, the number of steps at the construction site can be reduced and the stair unit 30 can be attached across the building units 11 and 12. Therefore, by that
The stair unit 30 includes two building units 11, 1
2 can be installed so as to occupy a large floor area, and the stairs can be gently sloped. Furthermore, the connecting portions are connected by the connecting riser plate 315, and the connecting portions are not visible from the outside, so that the design is neat.

The unit building 101 of this embodiment is
The staircase unit 30 is adjacent to the building unit 11,
Since it is attached across the twelve, the construction period at the construction site can be shortened.

FIG. 4 shows a modification of the staircase unit 30. The staircase unit 30 shown in FIG. 4 is essentially the same as that of the first embodiment. Therefore, the same components will be denoted by the same reference numerals and description thereof will be omitted, and only different components will be described by different reference numerals. The difference is that the connecting step plate 316 and the connecting riser plate 315 at the connecting portion between the first stair unit 31 and the second stair unit 32 are attached and integrated at the building site. Therefore, similarly to the first embodiment, the number of steps at the building site can be reduced.

The staircase unit according to the second embodiment will be described with reference to FIGS. The staircase unit 31 according to the present embodiment shown in FIG. 5 is the first staircase unit 31 according to the first embodiment.
11 and assembled with a riser 313 between step boards 312 vertically adjacent to each other. The receiving member 317 shown in FIG. 5 is formed by bending a thin steel plate. The receiving member 317 is bent at a right angle downward from both sides of the horizontal plate to support the stepped plate 312, and is brought into contact with the side surface of the spar beam 311. The vertical piece has a U-shape. The said slab girder 311 is formed of a square steel pipe.

The rivet 318 is provided in advance on the side surface of the slab beam 311 and the vertical piece of the receiving member 317, respectively.
Lower holes 320 and 319 are formed, and a vertical piece of the receiving member 317 is fixed to the side surface of the spar beam 311 from the rivet 318 inserted into the lower holes 320 and 319.

The receiving member 317 shown in FIG. 6 is a modification of the receiving member 317 shown in FIG.
The tip of the vertical piece 7 is bent outward at a right angle to form a mounting piece 321 which is mounted in contact with the upper surface of the slab 311. Then, the mounting piece 321 is brought into contact with the upper surface of the slab beam 311 and the rivet 3
18 fixed. Thus, the mounting piece 32
By providing 1 and fixing it to the upper surface of the girders 311, the head of the rivet 318 does not protrude from the side surface of the girders 311. .

(Operation of the Second Embodiment) In the staircase unit 31 of the present embodiment, the receiving tool 317 is fixed to the slab beam 311 by the rivets 318, so that the dimensional accuracy is better than that of welding in which distortion is likely to occur. Moreover, since the pilot holes 320 and 319 of the rivet 318 are formed in advance in the slab beam 311 and the receiving member 317, the positioning of the receiving member 317 becomes easy. Further, the improvement of the dimensional accuracy of the stair unit 31 facilitates the mounting, and the accuracy of the building is also improved.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific structure is not limited to this embodiment, and even if there is a design change or the like within a range not departing from the gist of the present invention. Included in the invention. For example, the upward-curved stair unit 30 of the first embodiment may be any of a straight-travel stair unit, a downward-curved stair unit, and a round stair unit.

[0034]

According to the staircase unit of the first aspect, it is not necessary to cut the members at the construction site, and the working time can be reduced. There is no waste material. Furthermore, since the stair unit is installed so as to straddle between adjacent building units, the stair unit can be installed so as to occupy a large floor area of the two building units, and the stairs can have a gentle slope.

The unit building according to the second aspect is the first aspect.
Since the described staircase unit is attached across the adjacent building units, the construction period at the construction site can be shortened.

In the staircase unit according to the third aspect, since the receiving member is fixed to the slab by the fixing member, the dimensional accuracy is higher than that of welding in which distortion tends to occur. In addition, since the pilot hole of the fixing tool is formed in advance in the slab and the receiver, the positioning of the receiver is facilitated.

A unit building according to a fourth aspect is the third aspect.
Since the described stair unit is attached to the building unit, the dimensional accuracy of the stair unit is improved so that the stair unit can be easily attached and the accuracy of the building is also improved.

[Brief description of the drawings]

FIG. 1 is a sectional view of a staircase unit according to a first embodiment of the present invention.

2A is a perspective view showing a main part of FIG. 1, and FIG. 2B is a side view of the main part viewed from the direction of arrow Z in FIG.

FIG. 3 is an explanatory diagram of a unit building.

FIG. 4 is a perspective view showing a modification of the first embodiment and showing a main part of a staircase unit.

5 (a) is a side view of a staircase unit, and FIG. 5 (b) is an enlarged perspective view of a portion A in FIG. 5 (a).

FIG. 6 is a modification of the second embodiment, and is a perspective view of a main part of a staircase unit.

[Explanation of symbols]

 101 unit building 11,12 building unit on the first floor 21,22 building unit on the second floor 30 staircase unit 31 first staircase unit 32 second staircase unit 311 sasara girder 312 step board 313 riser board 314 base 315 connection riser board 316 Connecting step board 317 Receiver 318 Rivets 319, 320 Prepared hole

Claims (4)

[Claims] 1. A staircase unit which is attached across adjacent building units of a unit building constructed by arranging a plurality of box-shaped building units vertically, horizontally, and inside one of the adjacent building units. And a second stair unit connected to the first stair unit and attached to the other adjacent building unit, and is divided into a first stair unit and a first stair unit.
A stair unit, wherein a step plate and / or a riser plate at a connection portion of the stair unit are attached and integrated at a building site. 2. The staircase unit according to claim 1, wherein the staircase unit is installed so as to straddle between adjacent building units, and is constructed by installing and connecting an upper-floor building unit on the building unit. Unit building. 3. A stair unit assembled by attaching a step board to a sasara spar via a receiving member and attaching a riser plate between vertically adjacent step plates, wherein the slab girder and the receiving member are preliminarily attached to a lower part of a fixing member. A stair unit, characterized in that a hole is drilled and the receiving device is fixed to the slab by a fixture at the position of the pilot hole. 4. A unit building constructed by arranging a plurality of box-shaped building units vertically and horizontally.
A unit building, wherein the staircase unit described above is attached to the building unit.