JPH07197618A - Staircase mounting structure in building unit - Google Patents

Abstract

PURPOSE:To make it possible to keep an installation place of a staircase free from any restrictions imposed by a floor space while preventing a rise in production cost of the staircase, and what is more, to comply with, relative positional changes produced between a counterpart member of the staircase to be mounted and reduce the weight of the staircase it self. CONSTITUTION:In structural members 1a and 1b of building units which integrate and constitute posts 11a and 11b and ceiling beams 12a and 12b and floor beams 13 and 13b in the shape of a box, an upper staircase 2a and a lower staircase 2b having a pair of right and left support materials 24a and 24b where the upper end of a support material 23a of the upper staircase 2a is mounted between the ceiling beams 12a. The lower end is mounted to a stud 14a between the ceiling beams 12a and the floor beams 13a while the upper end of the support material 23b of the lower staircase 2b is mounted to a stud 14b between the ceiling beams 12b and the floor beams 13b. On the other hand, the lower end is mounted to floor small beams 15b between the floor beams 13b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting stairs in a building unit.

[0002]

2. Description of the Related Art Conventionally, the simplest structure for mounting a staircase in a building unit is to support the upper end of the staircase on a ceiling beam or a ceiling beam which is the structure of the building unit, and to mount the lower end part of the staircase in the same manner. The structure was supported by floor beams or floor beams as a structure.

However, in the above-mentioned mounting structure, in the case of a large staircase such as a folded staircase or a staircase which is mounted across two building units, the staircase itself may bend or be bent due to the load of the staircase itself or the load applied to the staircase. Squeak may occur.

As a technique for coping with the above problem, there are known techniques described in JP-A-4-97068, JP-B-55-157952, and JP-B-57-60573.

In all of these, the staircase itself has a self-supporting structure (such as a box structure), and these are placed on the floor surface of the building unit to support the load of the staircase and the load applied to the staircase on the floor surface. is there.

As for the structure of the staircase itself, Japanese Patent Publication No.
The one described in Japanese Patent No. 50852 is known. This staircase is provided with iron support materials that support the wooden stepboards and riser boards of the staircase, and this support material supports the horizontal plate portion to which the stepboards are attached and the riser boards to be attached. The vertical plate portion and the side plate portion that supports the ends of the horizontal plate portion and the vertical plate portion are provided.

In this structure, the supporting member is fixed to the structure of the building unit by bolts, and the fixing position cannot be moved.

[0008]

However, in the above-mentioned conventional staircase mounting structure, since the staircase itself is made to be self-supporting, the structure of the staircase itself becomes complicated and the manufacturing cost of the staircase becomes high. However, since the load of the stairs and the load applied to the stairs are supported on the floor, there is a problem that the place where the stairs can be installed is restricted to the place with the floor.

Further, in the structure in which the supporting member has the step plate, the riser plate, and the side plate like the above-mentioned conventional structure, the weight of the stairs tends to be heavy, and when the weight of the stairs itself becomes heavy, In the structure supported by the floor as described above, the weight applied to the floor becomes heavy, and the installation location is also restricted in this respect. Be at a disadvantage.

Further, in the structure in which the position for fixing the stairs cannot be moved like the conventional mounting structure for the stairs, there is a dimensional error in the stairs or the structure, or the structure is distorted during transportation. Even if the upper and lower stairs are dislocated at the mounting positions, the mounting positions could not be corrected.

The present invention has been made by paying attention to the above-mentioned problems, and a building where the stairs are installed is not restricted to a place with a floor while preventing the manufacturing cost of the stairs from increasing. A first object of the present invention is to provide a staircase mounting structure in a unit, and to provide a staircase mounting structure capable of coping with a change in the relative position between a member on the other side to which the staircase such as a structure is mounted and the staircase. For the second purpose,
The third purpose is to reduce the weight of the stairs themselves.

[0012]

In order to achieve the first object, according to the present invention, stairs are provided inside a structure of a building unit which is constructed by connecting columns, ceiling beams and floor beams in a box shape. A structure for mounting a staircase in a building unit, wherein the staircase has a support member that supports a plurality of step plates, and at least one of an upper end and a lower end of the support member has a ceiling beam and a floor of the structure. The means is attached to a stud provided between the beams (Claim 1).

Further, in order to achieve the second object, the present invention is a building unit in which a stair is provided inside a structure of a building unit constructed by connecting a pillar, a ceiling beam and a floor beam in a box shape. The mounting structure of the stairs in claim 1, wherein the stairs have a supporting member for supporting a plurality of step plates, and the supporting member is horizontal or vertical with respect to the structure or a member fixed to the structure. Means attached via at least one of the directions via attachment position adjusting means capable of adjusting the attachment position (Claim 2), or the attachment position adjusting means are superposed on the stairs, which are in a superposed state when fixed. A member and a structure-side overlapping member, an elongated hole formed in at least one of the overlapping members so as to be elongated in the attachment position adjustable direction, and the overlapping member is inserted into the elongated hole to fasten both overlapping members in a superimposed state. And a means and a fastening means (claim 3).

Further, in order to achieve the third object, in the present invention, the support material for the stairs is bridged over the pair of left and right slanted bodies which are slanted at an angle corresponding to the inclination of the stairs. A means (claim 4) configured by a horizontal crossing portion formed so that only a step plate can be attached thereto, or a pair of left and right inclined bodies in which the supporting material of the stairs is inclined at an angle according to the inclination of the stairs. And a partial support portion formed so as to be able to attach the step plate in a state of standing upright on each inclined body and supporting only the end part of the step plate (claim 5).

[0015]

In the structure for mounting the stairs in the building unit according to claim 1 of the present invention, at least one of the upper end and the lower end of the supporting material of the stairs is supported by the studs provided between the ceiling beam and the floor beam of the structure. Since the upper and lower ends of the support material are supported at the middle height of the studs, when mounting a folded staircase to a building unit or when mounting one staircase across two building units It can also be applied to. Moreover, since the stairs and the load applied to the stairs are supported by the structure of the building unit having high rigidity, it is not necessary to complicate the structure of the stairs themselves, and the stairs can be installed even in a place without a floor.

In the staircase mounting structure in the building unit according to the second aspect of the present invention, due to a dimensional error of the staircase or the structure body, the space between the staircase mounting member or the member fixed to the structure body and the staircase is mounted. In the case where a relative positional shift occurs, the mounting position adjusting means can move the mounting position horizontally or vertically to absorb the positional shift. The movement of the mounting position by the mounting position adjusting means is, specifically, as described in claim 3, position adjustment in at least one of the overlapping member on the structure side and the overlapping member on the step side of the mounting position adjusting means. Direction, the overlapping members are relatively moved in the longitudinal direction of the oblong holes by an amount corresponding to the positional deviation, and the fastening means inserted in the oblong holes is fastened in that state. This moves the mounting position.

In the mounting structure according to the fourth aspect of the present invention, the step plate is mounted on the horizontal portion of the supporting material of the stairs mounted on the structure. If a riser plate is provided, it is attached to the step plate. As described above, in the structure according to the fourth aspect, it is possible to reduce the weight because the supporting member is not provided with the portion to which the riser plate is attached.

Further, in the mounting structure according to the fifth aspect, the left and right end portions of the step plate are supported by the partial support portions erected on the pair of left and right inclined bodies of the stair support member attached to the structure. Attach to the partial support in this state. If a riser plate is provided, it is attached to the step plate. As described above, in the structure according to the fifth aspect, not only is the supporting member provided with no part for attaching the riser plate, but also the part for supporting the step plate is inclined with respect to the part supporting part for supporting only the end part of the step plate. Only the body is erected on the body, and the portion between them is omitted, so the weight can be further reduced.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, referring to FIGS.
The mounting structure of the stairs in the building unit of the first embodiment, which is an embodiment of the invention described in (1), will be described.

FIG. 1 is a perspective view showing a building unit to which the structure of the first embodiment is applied. This building unit is constructed by vertically stacking structural bodies 1a and 1b and structural bodies 1d and 1e, respectively. Then, one straight staircase 2 is attached across the lower structures 1a and 1b.

The structures 1a, 1b, 1d, 1e (when one of these structures is not specified and designated, it is simply displayed as "1". Also, in other configurations, When referring to each of the similar structures without pointing to a specific one, the symbols a, b, d, and e are omitted and only the preceding numbers are displayed) are columns made of steel frames, respectively. 11a, 11b, 11d, 11e, ceiling beams 12a, 12b, 12d, 12e made of U-shaped steel, and a floor beam 13
Basically, a, 13b, 13d, and 13e are connected to each other in a rectangular parallelepiped box shape (a part of the box is interrupted in the middle to have a non-rectangular shape). And, on one of the side surfaces parallel to the longitudinal direction of each structure 1, a stud 14a made of steel frame,
Two studs 14b, 14d, and 14e are erected parallel to each other and spaced apart by the width of the straight staircase 2. The upper ends of the studs 14 are connected to the ceiling beam 12, while the lower ends are the floor beams 1.
It is connected to 3. Further, ceiling girders 16a and 16b are installed in the lateral direction from the upper end positions of the studs 14a and 14b, while the floor girders 16d are laid in the lateral direction from the lower end positions of the studs 14d and 14e. , 16e are installed. By the way, in the ceiling beams 12a and 12b and the floor beams 13d and 13e at the positions where the studs 14 are provided, the portions between the studs 14 are cut off. Also, the stud 1
Reinforcing members 18d and 18e are installed between 4d and between studs 14e, respectively.

Further, a ceiling beam 15a is installed between the ceiling beams 12a, 12a arranged in the lateral direction in the structure 1a, and in the structure 1b is disposed in the lateral direction. A ceiling beam 15b is installed between the floor beams 13b and 13b.

The straight staircase 2 is composed of the structures 1a,
As shown in FIG. 2 and FIG. 3, which are perspective views showing 1b, it is divided into an upper staircase 2a and a lower staircase 2b. The upper staircase 2a and the lower staircase 2b have different lengths but have the same structure. Therefore, the structure of the upper staircase 2a will be described with reference to FIG. 4. The upper staircase 2a (the lower staircase 2b) is a long slant body. Steel frame 21a (21b) and a steel frame 22a (22) as a partial support portion formed in a zigzag shape at an angle of 90 °.
b) are combined to form a pair of supporting members 23a (23b), and a plurality of wooden step plates 24a (24b) and riser plates 25a (25b) are formed on the pair of supporting members 23a (23b).
It is configured by attaching and fixing the end of b).

As shown in FIG. 2, the upper staircase 2a is arranged inside the structure 1a in the lateral direction of the structure 1a, and the upper end portion of the support member 23a has a ceiling beam. 15
It is supported and fixed to the middle portion of a, and the lower end portion of the support member 23a is supported and fixed to the middle portion of the two studs 14a and 14a. Furthermore, as shown in FIG. 3, the lower staircase 2b is arranged inside the structure 1b in the lateral direction of the structure 1b, and the upper end of the support member 23b has two studs 14b, 14b. Is supported and fixed to the middle portion of the support member 23b, and the lower end of the support member 23b is supported and fixed to the middle portion of the floor beam 15b.

In the structure 1a, the ceiling beam 12a at the portion where the studs 14a are provided is provided with detachable detachable beams 17a between the studs 14a. Until it is transported, this detachable beam 1
7a is attached in advance, and the detachable beam 17a is removed when the structures 1 are joined together on site. Further, the ceiling beam 12b in the portion where the studs 14a are provided in the structure 1b
Also, a detachable beam 17b is provided in a portion between the studs 14a so that the beam can be detached when the structures 1 are coupled to each other. Furthermore, in both the structures 1a and 1b, between the studs 14a and 14a, and between the studs 14b and 14b.
Reinforcing materials 18a and 18b are provided between them.

In the mounting structure of the first embodiment constructed as described above, one linear staircase 2 is mounted while straddling the structures 1a and 1b of two building units, and the load of the linear staircase 2 itself and Since the load applied to the linear staircase 2 can be supported by the structures 1a and 1b of the building unit having high rigidity, it is not necessary to complicate the structure of the linear staircase 2 itself, and the linear staircase 2 can be used even in a place without a floor. Can be installed.

Moreover, the stairs 24a of the stairs 2a, 2b,
The portion supporting 24b and riser plates 25a, 25b has a weight member bridged between the steel frames 21a, 21b only by standing the steel frames 22a, 22b on the steel frames 21a, 21b. Since it does not exist, the weight can be reduced.

Next, a second embodiment corresponding to the invention described in claims 1 and 5 will be described with reference to FIG. Figure 5
[Fig. 3] is a perspective view showing a staircase mounting structure in the building unit of the second embodiment, in which the folded staircase 3 is mounted in the structure 1c of one building unit.

The structure 1c is a column 11c made of steel frame.
And the ceiling beam 12c and the floor beam 13c made of U-shaped steel are connected to a rectangular parallelepiped box shape, and three studs 14c made of steel are provided on one side surface parallel to the longitudinal direction, and the upper end of each stud 14c is While connecting to the ceiling beam 12c,
The lower end of the stud 14c is connected to the floor beam 13c. Further, in the structure 1c, a ceiling girder 15c is installed between the ceiling beams 12c, 12c arranged in the longitudinal direction, and a floor girder is provided between the floor beams 13c, 13c arranged in the longitudinal direction. A beam 16c is installed.

The folded stairs 3 are the upper stairs 3a and the lower stairs 3.
The upper staircase 3a and the lower staircase 3b are joined to each other to connect the long steel frames 31a and 31b and the zigzag-formed steel frames 32a and 32b.
a, 33b are formed, and the pair of support members 33a, 33b
A plurality of step plates 34a, 34b and riser plates 35a,
It is configured by fixing 35b. In addition,
The step plate 34a fixed to the top of the upper staircase 3a and the step plate 34b fixed to the bottom of the lower staircase 3b have a larger depth than the other step plates 34a, 34b. One landing plate is formed by the sheet plates 34a and 34b.

The upper staircase 3a has the structure 1c.
Is arranged in the longitudinal direction of the structure 1c, the upper end of the support member 33a is supported and fixed to the ceiling beam 15c, and the lower end of the support member 33a has two studs 14c,
It is supported and fixed to the middle portion of 14c. Furthermore,
The lower staircase 3b is disposed inside the structure 1c in the longitudinal direction of the structure 1c, and the upper end portion of the support member 33b is 2
It is supported and fixed to the middle portion of the studs 14c, 14c, and the lower end of the support member 33b is supported and fixed to the middle portion of the floor beam 16c.

That is, in the mounting structure of this embodiment, the folding stairs 3 and the load applied to the folding stairs 3 are supported by the highly rigid building unit structure 1c while the folding stairs 3 are attached to the building unit structure 1c. Therefore, it is not necessary to complicate the structure of the folding staircase 3 itself, and the folding staircase 3 can be installed even in a place without a floor.

Next, based on FIG. 6 to FIG.
The third embodiment, which is an embodiment of the invention described in any one of 4 to 4, will be described.

FIG. 6 is a perspective view showing the mounting structure of stairs in the building unit of the third embodiment, in which the folded stairs 4 are mounted in the structure 1f of one building unit.

The structure 1f includes a pillar 11f and a ceiling beam 12.
f and the floor beam 13f are connected to each other in a rectangular parallelepiped box shape, and the space between the pair of ceiling beams 12f and floor beams 13f parallel to the longitudinal direction is 3
It is configured by connecting book studs 14f.

The folded staircase 4 is composed of an upper staircase 4a and a lower staircase 4a.
It is divided into b and. As shown in FIG. 7, the upper staircase 4a includes a pair of left and right inclined bodies 41a made of iron and having a rectangular tubular shape.
41a, a horizontal portion 42a composed of a wide U-shaped iron plate that is connected to the inclined bodies 41a, 41a at both ends, and is bridged between the inclined bodies 41a, 41a, and the inclined body 41.
A support member 44a is configured by a connecting plate 43a formed of a strip-shaped iron plate that connects the upper ends of a and 41a. Then, the step plate 45a is fixed to each of the horizontal portions 42a, and each step plate 4a
A riser plate 46a is fixed to 5a to form the upper staircase 4a. The step plate 45a fixed to the bottom of the upper stairs 4a has a wider depth than the other step plates 45a and forms a landing.

On the other hand, the lower stairs 4b are, as shown in FIG.
The inclined bodies 41b and 41b and the horizontal portion 42 similar to the upper stairs 4a
A support member 44b is constituted by b and the connecting plate 43b, and a step plate 45b is fixed to each of the laterally extending portions 42b, and a riser plate 46b is fixed to each step plate 45b. The step plate 45b fixed to the bottom of the lower stairs 4b has a larger depth than the other step plates 45b, and forms a landing.

Returning to FIG. 6, the lower staircase 4b is
The lower end is attached to the floor beam 13f through the lower attachment position adjusting means 5b, while the left and right upper ends are fixed to the stud 14f by fastening means (not shown) such as bolts. The upper stair 4a has its upper end attached to the ceiling beam 12f through the upper attachment position adjusting means 5a, while the lower right side (the direction when facing up) is the lower stair. An intermediate mounting position adjusting means 5 is provided on the right side of 4b.
It is attached via c (see FIG. 9) and is fixed to the stud 14f by fastening means such as bolts.

Next, the intermediate mounting position adjusting means 5c will be described with reference to FIGS. 8, 9 and 10. The intermediate mounting position adjusting means 5c is located on the right side of the step plate 45b located at the top of the lower staircase 4b. A plate-shaped overlapping piece (overlapping member) 51c that is erected on the surface and a horizontal crossing portion 4 located at the bottom of the upper stairs 4a
Right side surface (overlapping member) 52c of 2b and the overlaid piece 51c
Elongated holes 53c, 53c elongated in the vertical direction, and a fixing hole formed in the right side surface 52c (not shown, this fixing hole has a diameter slightly larger than the diameter of a bolt 54c described later). Is formed on the upper side) and a bolt 54c and a nut 55c for fixing the overlapped piece 51c and the right side surface 52c in a state of being fastened together with the elongated hole 53c inserted through the fixing hole. Has been done. In addition,
The overlapped piece 51c is provided with a pair of provisional fastening holes 56c, 56.
Although not shown, the right side surface 52c also has a stud hole 56 when the overlapping piece 51c is overlapped.
Shino holes are formed at positions corresponding to c.

Therefore, at the time of attaching the upper stairs 4a, after inserting a Shino (not shown) into the Shino hole 56c and temporarily fixing it,
Within the length of the long hole 53c, the upper staircase 4a is moved up and down with respect to the lower staircase 4b, and the bolt 54c.
By tightening the nut 55c, both 4
The mounting positions of a and 4b can be arbitrarily moved up and down, and then the lower end of the upper stair 4a is fixed to the stud 14f.

Next, the lower mounting position adjusting means 5b will be described with reference to FIGS. 11 and 12. The lower mounting position adjusting means 5b is connected to the connecting plate (overlapping member) 43b constituting the supporting member 44b. , L-shaped overlapping member 52 fixed to U-shaped angle member 51b fixed to floor beam 13f
b, a first elongated hole 53b formed in the overlapping member 52b in the left-right direction, a second elongated hole 54b formed in the connecting plate 43b in the front-rear direction, and widths of the elongated holes 53b, 54b. Is composed of a slightly smaller diameter bolt 55b and nut 56b. In addition, the connecting plate 43b is provided with a through hole 57.
b and 57b are provided, and although not shown in the drawing, a boss hole corresponding to the boss hole 57b is formed in the overlapping member 52b.

Therefore, the lower staircase 4b is moved in the front-rear and left-right directions with respect to the floor beam 13f within the range of the lengths of the elongated holes 53b, 54b, and the bolts 55b and nuts 56b are placed at arbitrary positions.
By fastening the above, the attachment positions of the both 4b and 13f can be arbitrarily moved in the front, rear, left and right horizontal directions.

Next, the upper mounting position adjusting means 5a will be described with reference to FIGS. 13 and 14. The upper mounting position adjusting means 5a has substantially the same structure as the lower mounting position adjusting means 5b, and is supported by The connecting plate (overlapping member) 43a constituting the member 44a and the L-shaped overlapping member 52 fixed to the U-shaped angle member 51a fixed to the ceiling beam 12f.
a, a first elongated hole 53a formed in the connecting plate 43a in the front-rear direction, a second elongated hole 54a formed in the overlapping member 52a in the left-right direction, and widths of the elongated holes 53a, 54a. Is composed of a slightly smaller diameter bolt 55a and nut 56a. In addition, the connecting plate 43b is provided with a stud hole 5
7a and 57a are provided, and although not shown in the drawing, the sino holes corresponding to the sino holes 57b are the overlapping members 52a.
Is formed in.

Therefore, the upper stair 4a is moved in the front-rear direction and the left-right direction with respect to the ceiling beam 12f within the range of the lengths of the elongated holes 53a and 54a, and the bolts 55a and the nuts 56 are placed at arbitrary positions.
By fastening a, the attachment positions of both 4a and 12f can be arbitrarily moved in the front-rear, left-right, and horizontal directions.

As described above, in the third embodiment, the mounting position of the lower staircase 4b with respect to the floor beam 13f can be arbitrarily moved in the front-back and left-right directions by the lower mounting position adjusting means 5b, and the upper staircase 4b can be moved upward. The mounting position of the stairs 4a can be arbitrarily moved in the vertical direction by the intermediate mounting position adjusting means 5c, and further, the mounting position of the upper stairs 4a with respect to the ceiling beam 12f can be arbitrarily moved in the front-rear and left-right directions by the upper mounting position adjusting means 5a. Therefore, even if there is a dimensional error in the structure 1f or the stairs 4, or even if the structure 1f or the stairs 4 is slightly distorted during transportation, each mounting position adjusting means 5a, 5b,
By 5c, the position can be adjusted in the front-rear, left-right, and up-down directions, and the effect of being able to mount the stairs 4 by absorbing the displacement of the mounting position is obtained.

Further, in the third embodiment, the horizontal members 42a, 4a of the support members 44a, 44b of the upper and lower stairs 4a, 4b are provided.
2b only attaches and supports the step plates 45a and 45b, and the riser plates 46a and 46b are attached to the step plates 45a and 45b, so that the support members 44a and 44b are attached to the riser plates 46a and 44b.
Since the portion supporting 46b is omitted, the support member 4 made of iron is used.
The weight of 4a and 44b can be reduced.

Next, a fourth embodiment will be described with reference to FIG. The fourth embodiment is a modification of the third embodiment,
The direction of the upper staircase 6a is different from that of the third embodiment, and the structure 1f and the lower staircase 4b have the same structure as that of the third embodiment. To do.

The upper staircase 6a is connected to the lower staircase 4b to form a folded staircase 6. Also, the upper stairs 6
a is a support member 44a having a structure similar to that of the third embodiment and a step plate 6
5a is attached, and a riser plate 66a is attached to this step plate 65a. The difference from the third embodiment is that the support member 44
The horizontal portion 42b of a is formed to have the same front and rear length as the front stage, and the rear surface of the lower end portion of the upper staircase 6a is attached to the right side surface of the lower staircase 4b, and the upper end portion of the upper staircase 6a is provided with the ceiling beam 1 in the lateral direction.
It is attached to 2f.

Next, a fifth embodiment which is an embodiment of the invention described in claim 5 will be described with reference to FIG. The fifth embodiment is a modification of the lower staircase, and the lower staircase 6b of the fifth embodiment.
The third point is that the portion of the support member 64b that supports the step plate 45b is formed of a partial support piece 62b that is formed of an L-shaped angle member that is erected on each inclined body 41b.
This is different from the embodiment. Therefore, the lower stairs 6b can be made lighter than the third embodiment. Since the other configurations are the same as those of the third embodiment, the reference numerals of the third embodiment are attached and the description thereof is omitted.

Next, a sixth embodiment, which is a modification of the first embodiment, will be described with reference to FIG. FIG. 17 is a schematic view of the sixth embodiment as seen from diagonally above, the linear staircase 2 is structurally the same as the first embodiment, and the difference from the first embodiment is that
The length of the lower staircase 2b is shorter than that of the first embodiment and is only two steps, and the length of the upper staircase 2a is formed longer by that much. Further, the lower staircase 2b has the lower end beam 15b similar to that of the first embodiment at the lower end (however, the mounting position is different from that of the first embodiment).
And the upper end is attached to the stud 14b. On the other hand, in the upper staircase 2a, the lower end is attached to the stud 14a as in the first embodiment, but the upper end is the ceiling beam 12a.
Is attached to.

As for the structures 1a and 1b, the first
In the embodiment, the ceiling beams 12a located above the straight stairs 2,
The removable beams 17a and 17b are provided on 12b,
In the sixth embodiment, since there is a sufficient height between the ceiling beams 12a and 12b and the straight stairs 2, the ceiling beam 12
1 without attaching and detaching beams 17a and 17b to a and 12b
It is composed of book members. Therefore, the structure of the structures 1a and 1b is simplified as compared with the first embodiment.

Next, a seventh embodiment, which is a modification of the third embodiment, will be described with reference to FIG. FIG. 18 is a schematic view of the seventh embodiment as seen obliquely from above. Explaining the difference from the third embodiment, in the structure 1f, the pillar 11f has a longer vertical dimension than that of the third embodiment. Four studs 14f are provided between the ceiling beam 12f and the floor beam 13f on one side. In the folded staircase 7, the upper staircase 4a and the lower staircase 4b are arranged apart from each other on the left and right, and the vertical dimension of the structure 1f becomes longer between the lower end portion of the upper staircase 4a and the upper end portion of the lower staircase 4b. A middle staircase 7c having a height of a minute is spanned. The upper stairs 4a have their upper ends attached to the ceiling beams 12f, while their lower ends are attached to the studs 14f. The lower staircase 4b has a stud 14f at the upper end.
On the other hand, the lower end is attached to the floor beam 13f.

Between the middle staircase 7c and the upper and lower staircases 4a and 4b, the same structure as the intermediate position adjusting means 5c of the third embodiment (that is, the superposed members overlapping each other and the superposed members formed on the superposed members) is formed. Position adjustment means (not shown) for the long hole and a structure having a bolt inserted into the long hole is provided, and the relative position of the upper staircase 4a and the lower staircase 4b attached to the structure 1f is displaced. Can be absorbed by the position adjusting means provided between the center stairs 7c.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific structure is not limited to this embodiment, and there are design changes and the like within the scope not departing from the gist of the present invention. Also included in the present invention. For example, in the embodiment, the mounting structure of the straight staircase and the bent staircase has been described, but a staircase having another shape may be configured by combining a plurality of staircases. Further, it is desirable that the positions and the number of studs of the structure body be appropriately set according to the shape of the stairs and the like. Further, the support material for the stairs may be fixed at any position on the stud, and can be set appropriately.

Further, the through holes 56c shown in the third embodiment,
57a and 57b may be used for fastening through bolts.

[0056]

As described above, in the structure for mounting the stairs in the building unit according to the first aspect, since the support material for the stairs is mounted on the studs, the stairs can be easily supported and the folded stairs can be supported. Can be applied to a building unit or one stair over two building units, but it does not increase the cost, and the stair can be installed even in a place without a floor. The effect of being able to do is obtained.

Further, in the mounting structure according to the second and third aspects, the stairs are mounted in at least one of the horizontal direction and the vertical direction with respect to the mounting object which is the structure or a member fixed to the structure. Since the mounting position is adjusted via the adjustable mounting position adjusting means, even if the relative position between the installation target on the structure side of the building unit and the stairs is displaced, the mounting position can be moved to absorb the displacement. It is possible, especially when the structure or stairs are distorted during transportation.

Further, in the mounting structure according to the fourth aspect, in the supporting material of the stairs, the lateral bridge portion capable of mounting only the step plate is bridged over the inclined body, and the portion for mounting the riser plate is not provided. Therefore, there is an effect that the weight can be reduced. Further, in the mounting structure according to claim 5, in the supporting member of the stairs, the portion to which the step plate is mounted is erected on the inclined body. Since only the end portion of the step plate is supported by the partial support portion, it is possible to obtain the effect that the weight can be further reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a structure for mounting stairs in a building unit according to a first embodiment.

FIG. 2 is a perspective view showing a part of the mounting structure of the first embodiment.

FIG. 3 is a perspective view showing a part of the mounting structure of the first embodiment.

FIG. 4 is a perspective view of a staircase used in the mounting structure of the first embodiment.

FIG. 5 is a perspective view showing a staircase mounting structure in a building unit of a second embodiment.

FIG. 6 is a perspective view showing a staircase mounting structure in a building unit of a third embodiment.

FIG. 7 is a perspective view of an upper staircase used in the mounting structure of the third embodiment.

FIG. 8 is a perspective view of a lower staircase used in the mounting structure of the third embodiment.

FIG. 9 is a side view showing an intermediate attachment position adjusting means used in the attachment structure of the third embodiment.

FIG. 10 is a front view showing an intermediate attachment position adjusting means used in the attachment structure of the third embodiment.

FIG. 11 is a plan view showing a lower mounting position adjusting means used in the mounting structure of the third embodiment.

FIG. 12 is a cross-sectional view (S12-S12 cross section of FIG. 11) showing the lower mounting position adjusting means used in the mounting structure of the third embodiment.

FIG. 13 is a plan view showing an upper mounting position adjusting means used in the mounting structure of the third embodiment.

FIG. 14 is a cross-sectional view (S14-S14 cross section in FIG. 13) showing the upper mounting position adjusting means used in the mounting structure of the third embodiment.

FIG. 15 is a perspective view showing a staircase mounting structure in a building unit of a fourth embodiment.

FIG. 16 is a perspective view of a lower staircase used in the mounting structure of the fifth embodiment.

FIG. 17 is a schematic view of the mounting structure of the sixth embodiment as seen obliquely from above.

FIG. 18 is a schematic view of the mounting structure of the seventh embodiment as seen obliquely from above.

[Explanation of symbols]

1a, 1b, 1c, 1d, 1e, 1f Structure 11a, 11b, 11c, 11d, 11e, 11f Pillar 12a, 12b, 12c, 12d, 12e, 12f Ceiling beam 13a, 13b, 13c, 13d, 13e, 13f Floor Beams 14a, 14b, 14c, 14d, 14e, 14f Pillars 15a, 15c, 16a, 16b Ceiling girders 15b, 16c, 16d, 16e Floor girders 2 Straight stairs 3 Folded stairs 4 Folded stairs 6 Folded stairs 2a, 3a, 4a , 6a Upper stairs 2b, 3b, 4b, 6b Lower stairs 23a, 23b, 33a, 33b, 44a, 44b, 6
4a, 64b Supporting material 21a, 21b Steel frame (inclined body) 41a, 41b Inclined body 42a, 42b Horizontal bridge portion 22a, 22b Steel frame (partial support portion) 62b Partial support portion 24a, 24b, 34a, 34b, 45a, 45b, 6
5a Step plate 25a, 25b, 35a, 35b, 46a, 46b, 6
6a riser plate 5a upper mounting position adjusting means 43a connecting plate (overlapping member) 52a overlapping member 53a first elongated hole 54a second elongated hole 55a bolt (fastening means) 56a nut (fastening means) 5b lower mounting position adjusting means 43b Connecting plate (overlapping member) 52b Overlapping member 53b First elongated hole 54b Second elongated hole 55b Bolt (fastening means) 56b Nut (fastening means) 5c Intermediate mounting position adjusting means 51c Overlapping piece (overlapping member) 52c Right side surface (overlapping member) ) 53c Slot 7 Broken stairs 7c Middle stairs

Claims (5)

[Claims] 1. A staircase mounting structure in a building unit, wherein a staircase is provided inside a structure of a building unit, which is formed by connecting a pillar, a ceiling beam, and a floor beam in a box shape, and the staircase comprises It has a support material that supports a plurality of step plates,
At least one of an upper end and a lower end of the support member is attached to a stud provided between a ceiling beam and a floor beam of the structure, and a stair attachment structure in a building unit. 2. A staircase mounting structure in a building unit, wherein a staircase is provided inside a structure of a building unit, which is formed by connecting a pillar, a ceiling beam, and a floor beam in a box shape, and the staircase comprises It has a support material that supports a plurality of step plates,
The support member is attached to the structure or a member fixed to the structure through an attachment position adjusting means capable of adjusting an attachment position in at least one of a horizontal direction and a vertical direction. Mounting structure of stairs in a building unit. 3. The mounting position adjusting means is formed long in the mounting position adjustable direction in at least one of the stepped side overlapping member and the structure side overlapping member which are in an overlapping state with each other when fixed, and both overlapping members. 3. The staircase mounting structure in a building unit according to claim 2, further comprising: a long hole and a fastening means that is inserted into the long hole and fastens both overlapping members in a superposed state. 4. A pair of right and left slanting bodies in which the supporting material for the stairs is slanted at an angle according to the slanting of the stairs, and a horizontal bridging portion formed so as to be mounted on the slanting body so that only the step plate can be attached 4. The structure for mounting stairs in a building unit according to claim 1 or 2, wherein 5. A stair plate in which the support material for the stairs is a pair of left and right slanting bodies that are slanted at an angle according to the slope of the stairs, and is provided upright on each slanting body to support only the ends of the stairs. 4. The structure for mounting stairs in a building unit according to claim 1, wherein the structure is configured by a partial support portion formed so as to be attachable.