JP6480774B2 - Staircase construction method and staircase - Google Patents

Description

  The present invention relates to a method for constructing a staircase and a staircase constructed by this method.

  As a construction method for a building such as a house, there has been a method in which a plurality of types of members constituting a building are assembled at a factory located away from the construction site and unitized, and then transported to the construction site for installation. Are known. As a unitized member, for example, there is a stair unit composed of a counter girder, a tread board, and a kick board as shown in Patent Document 1. By doing so, it is possible to construct the stairs of the building simply by installing the stair unit in the staircase, so that the labor and cost of construction can be reduced.

  Further, in the construction of a building using a stair unit as shown in Patent Document 1, a stair unit is first installed in a space that becomes a staircase room surrounded by a plurality of columns, and can be formed between the columns and the stair unit. In many cases, a plate material constituting a wall is inserted into the gap and fixed later. The reason for this is that the work space for carrying the stair unit can be widened as much as there is no plate material, and that the unit staircase can be used as a scaffold when installing plate materials in high places. ing.

JP 2014-025334 A

In recent houses, plasterboard is often used for the plate material. The gypsum board has fire resistance and soundproofing, but it is a fragile member. Therefore, when fixing to a pillar, it is necessary to squeeze a fixing tool such as a nail at a shorter interval than in the case of wood or the like. Here, as described above, if the stair unit is installed before the plate material is fixed, a part of the plate material is shielded by the girders, but the fixing is insufficient only by driving the fixing tool into the non-shielded portion. In many cases. Therefore, conventionally, a fixing tool is driven from the spar to the column, and the plate material is fixed to the column together with the slab. That is, the staircase unit was fixed to the wall.
However, if the staircase unit is fixed to the wall, vibrations when going up and down the stairs are easily transmitted to the wall via the fixture, so that footsteps will greatly affect the living room adjacent to the wall. .

  The present invention has been made in view of the above problems, and in a staircase room having a unit type staircase, it is intended to make it difficult to transmit vibrations when going up and down the staircase to a wall without increasing the labor of construction. To do.

  In order to solve the above-mentioned problem, the invention described in claim 1 includes, for example, as shown in FIGS. A girder member 41 and a plurality of treads 42 provided on the girder member 41, and the girder member 41 is disposed adjacent to the walls 10, 10A. In the construction method of the staircase room 20 provided with the staircase 40, the pillar 11 is erected at a predetermined location, and the diameter of the pillar 41 is opposed to the side surface of the pillar 11 from the fixture 15. The staircase 40 having a large hole 41d is installed such that the side surface of the beam member 41 is separated from the side surface of the column 11 by a distance equal to or greater than the thickness of the plate members 13 and 13A. 41 and 13A are inserted between 41 and 41 , From the holes 41d, and wherein said driving a fastener 15 or causing screwed into the plate 13, 13A.

  According to the first aspect of the present invention, the plate members 13 and 13A are fixed to the pillar 11 using the fixing tool 15 from the hole 41d larger than the diameter of the fixing tool 15 opened in the beam member 41. Even if the plate members 13 and 13A are inserted after the installation, only the plate members 13 and 13A can be fixed to the pillar 11 and the staircase 40 can be in a state of being in contact with the walls 10 and 10A. For this reason, since the vibration at the time of going up and down the stairs 40 becomes difficult to be transmitted to the walls 10 and 10A, it is possible to make it difficult for footsteps to sound in the living room or the like adjacent to the walls 10 and 10A.

  The invention according to claim 2 is the construction method of the staircase 20 according to claim 1, for example, as shown in FIGS. Insert the other plate members 13 and 13A into contact with the side surface of the column 11, and insert the other plate members 13 and 13A into contact with the side surface of the column 11 and one side end portion of the plate members 13 and 13A. Then, the fixing tool 15 is driven or screwed into the one end of the plate members 13 and 13A and the other end of the other plate members 13 and 13A from the hole 41d.

According to the second aspect of the present invention, the peripheral portions of the two adjacent plate members 13 and 13A are exposed from the hole 41d with the joints J ₁ and J ₂ interposed therebetween. , 13A. For this reason, the labor of construction can be reduced without increasing the number of holes excessively and reducing the strength of the girder 41 more than necessary.

The invention according to claim 3 is the construction method of the staircase 20 according to claim 2, for example, as shown in FIGS. 2 and 3, the other hole 41 e is above or below the hole 41 d, It is characterized by being formed so as to be shifted to the side of the joints J ₁ and J ₂ between the plate members 13 and 13A and the other plate members 13 and 13A rather than the hole 41d.

  According to the third aspect of the present invention, the plate members 13 and 13A can be fixed at a plurality of locations using the plurality of holes 41d and 41e. Further, even if there is an obstacle directly above the hole 41d and the fixing member 15 cannot be driven / screwed in or the hole 41d cannot be formed, the plate member 13, 13A or another plate member 13, It is possible to prevent the 13A from being insufficiently fixed.

  The invention according to claim 4 is the construction method of the staircase 20 according to any one of claims 1 to 3, wherein the staircase 40 is provided with a kick plate 43, and the plate member 13, After fixing 13A, the baseboard 50 is attached to the walls 10 and 10A so as to be along the upper surface of the end portion of the tread plate 42 and the side surface of the end portion of the kick plate 43.

  According to the invention of claim 4, the girder plate 41 and the hole 41 d opened in the girder member 41 are shielded by the kick plate 43, and between the walls 10, 10 </ b> A and the staircase 40 by the baseboard 50. Since the generated gap is shielded, the appearance of the staircase 20 can be improved.

  The invention according to claim 5 is characterized in that in the construction method of the staircase 20 according to any one of claims 1 to 4, a plaster board is used as the plate members 13 and 13A.

  Since gypsum board is an inexpensive material that is widely distributed as a building material, according to the invention described in claim 5, it is possible to construct a wall easily and at low cost. Moreover, since the gypsum board has soundproofing properties, vibrations when going up and down the stairs 40 are further less likely to be transmitted to the walls 10 and 10A.

  The invention according to claim 6 is surrounded by walls 10 and 10A composed of a column 11 and plate members 13 and 13A fixed to the side surface of the column 11 by a fixture 15, and includes a beam member 41 and the beam member. In the staircase 20 having a plurality of treads 42 provided on 41 and provided with a staircase 40 in which the girder 41 is disposed adjacent to the walls 10 and 10A, the pillar 11 in the girder 41 is provided. A hole 41d having a diameter larger than that of the fixing tool 15 is formed in a portion facing the fixing tool 15, and the fixing tool 15 is driven or screwed into the portion exposed from the hole 41d in the plate members 13 and 13A and the column 11. The staircase 40 is not fixed to the walls 10 and 10A.

  According to the sixth aspect of the present invention, only the plate members 13 and 13A are fixed to the column 11, and the staircase 40 is only in contact with the walls 10 and 10A. Footsteps are not transmitted to the wall 10, and it is possible to make it difficult for the footsteps to resonate in the living room adjacent to the walls 10 and 10 </ b> A.

  ADVANTAGE OF THE INVENTION According to this invention, in the staircase provided with a unit type staircase, the vibration at the time of going up and down a staircase can be made difficult to be transmitted to a wall, without increasing the construction effort.

It is the top view which showed the inside of the building which concerns on embodiment of this invention. It is II-II sectional drawing of FIG. FIG. 3 is a sectional view taken along line III-III in FIG. 2. It is the side view which showed an example of the girder which comprises the stairs provided in the building of FIG. FIG. 3 is a partially enlarged view of FIG. 2. It is the top view which showed the inside of the building which concerns on the modification of the embodiment. It is VII-VII sectional drawing of FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[Building structure]
First, the structure of the building 1 according to this embodiment will be described. 1 is a plan view showing the inside of the building 1, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, FIG. 3 is a sectional view taken along the line III-III in FIG. FIG. 5 is an enlarged view of a portion surrounded by a broken line marked with V in FIG. 2 when viewed from the side opposite to FIG. 2 (the back side of the paper surface). It is.

The building 1 of this embodiment is a multi-story building. The interior of the building 1 is partitioned into a plurality of spaces by a plurality of walls 10 and 10A, one of which is a staircase 20 as shown in FIG. Staircase 20, as shown in FIG. 2, is provided across between the upper floor F _U and Shitakai F _L of the building 1. The staircase 20 is provided with a surrounding staircase unit 30, a straight staircase unit 40 (staircase), and a baseboard 50.

  There are two types of walls in this embodiment surrounding the staircase 20. Specifically, in the staircase 20, it is provided on the right hand (upper side in FIG. 1) as viewed from the person who goes up the straight staircase unit 40, and on the left hand (right side in FIG. 1) as viewed from the person who goes up the staircase unit 30 And a boundary wall 10A provided on the left hand (downward in FIG. 1) as viewed from the person who goes up the straight staircase unit 40.

As shown in FIG. 1, each inner wall 10 includes a plurality of pillars 11, a base material 12, a plurality of plate members 13, a heat insulating material 14, and a fixture 15 (such as a nail or a screw). Yes.
Each column 11 is erected around the staircase 20 so as to extend vertically upward at a predetermined interval.
The base material 12 is a square member that is provided to fix the plate member 13 when there is no adjacent column at a location separated from a certain column 11 by the pitch of the fixture 15. When a plurality of base materials 12 are provided, as shown in the boundary wall 10A of FIG. That is, the wall 10 standing up close to the staircase 20 side and the wall 10 standing up close to the space adjacent to the staircase 20 are arranged alternately in the horizontal direction. Note that the base material 12 is not necessary when a sufficient number of pillars 11 are provided.

The plate material 13 is a gypsum board and has an advantage of having fire resistance and soundproofing properties, but is easily broken and needs to be fixed by using many fixing tools 15. The front view shape of the plate member 13 is a rectangle having a predetermined width and height. Each plate member 13 abuts the peripheral edge along one long side against the side surface of the pillar 11 or the base material 12, and the peripheral edge along the other long side contacts the adjacent pillar 11 or the base material 12, And it arrange | positions so that a mutual long side may contact | connect. That is, the joint J ₁ between the plate member 13 and the adjacent plate member 13 overlaps the side surface of the column 11. Each plate member 13 is fixed to the pillar 11 and the base material 12 by the fixing tool 15 being driven / screwed into the peripheral portion and other parts requiring fixing.
The heat insulating material 14 is filled in a space surrounded by the pillars 11 and the plate material 13.

10 A of boundary walls are walls used as a boundary with other rooms, and similarly to the inner wall 10, a plurality of columns 11, a plurality of base materials 12, a heat insulating material 14, a fixture 15 (such as nails and screws), However, the structure of the board | plate material 13 differs. Specifically, the plate material 13A of the boundary wall 10A is thicker than the plate material 13 of the inner wall 10 by stacking two plaster boards. As a result, soundproofing and fire resistance are improved as compared with the inner wall 10. In the gypsum board constituting the plate material 13A, the fixing position is shifted in the horizontal direction by the pitch of the fixing tool 15 (for example, a distance half the width of the gypsum board) between the inside and the outside of the boundary wall 10A. That is, as shown in FIGS. 2 and 3, so that the joint J ₂ of the outer gypsum board 13b overlaid on the outer side of the joint J ₁ and the inner gypsum board 13a of the inner plasterboard 13a located inside the Sakaikabe 10A do not match It has become. Thereby, the soundproofing property and fire resistance are improved as compared with the case where the joints are matched. And the inner side gypsum board 13a is being fixed to the pillar 11 or the base material 12 by the fixing tool 15 being driven / screwed in to a peripheral part and other site | parts which need fixing. The outer gypsum board 13b is a portion that overlaps the seam J ₁ of the peripheral portion and the inner gypsum board 13a, fixture 15 is displaced slightly sideways or up and down sides of the fixture 15 for fixing only the inner plasterboard 13a In this way, it is fixed to the pillar 11 and the base material 12 by being driven / screwed in.

  The walls 10, 10 </ b> A configured in this way have improved soundproofing properties due to the staggered arrangement of the base material 12 and the gypsum boards 13 a, 13 b. In addition, the heat insulating material 14 improves the heat insulation and the sound insulation.

As shown in FIG. 2, the surrounding staircase unit 30 includes a support base 31, a plurality of step boards 32, and a plurality of kick boards 33.
The support base 31 includes a plurality of support portions 31a to 31c. Each of the support portions 31a to 31c is configured such that the upper surface is horizontal and is lower by the thickness of the tread plate 32 than the height of each step of the stairs. An upper surface end portion of the support portion 31 c constituting the uppermost stage is a placement portion 31 d for placing the lower end portion of the straight staircase unit 40.
As shown in FIG. 1, each tread 32 has a shape obtained by cutting a substantially square with a straight line extending radially from one corner, and is fixed to the upper surfaces of the support portions 31 a to 31 c of the support base 31.
Each kick plate 33 is formed in a rectangular shape having a width corresponding to the shape of the corresponding tread plate 32. Each kick plate 33 is fixed below each tread plate 32.

As shown in FIG. 2, the straight stair unit 40 includes a pair of spar girders 41 (girder members), a plurality of step plates 42, and a plurality of kick plates 43.
As shown in FIG. 4, each sagittal girder 41 has a plurality of tread board mounting surfaces 41 a that are horizontal when the straight stair unit 40 is installed in the staircase 20, and substantially orthogonal to the tread board mounting surface 41 a. Are formed in a zigzag manner. Further, an engaging portion 41 c is formed at the longitudinal end portion of each sheathing girder 41.

  In addition, a plurality of holes 41d are formed in each sheathing girder 41. When the straight stair unit 40 is installed in the staircase 20, the hole 41 d is formed to extend in parallel (horizontal direction) with the tread board mounting surface 41 a in a portion facing the side surface of the column 11 or the side surface of the base material 12. ing. Therefore, the arrangement of the holes 41d may be the same for the right and left shearing girders 41 or may differ for the left and right as shown in FIG. The shape of each hole 41d is such that the width in the short (vertical) direction is larger than the diameter of the head of the fixture 15, and the width in the longitudinal (horizontal) direction is 2 times the diameter of the head of the fixture 15. It is larger than double.

Each tread plate 42 has a rectangular shape whose width is substantially equal to the distance between both side surfaces facing the outside of the pair of spar 41. Each tread plate 42 is fixed to the strut 41 with both ends thereof being placed on the tread plate mounting surface 41a of the pair of struts 41.
Each kick plate 43 has a rectangular shape with the same width as the tread plate 42. Each tread plate 42 is fixed to the cage girder 41 in a state where both end portions are in contact with the kick plate mounting surfaces 41b of the pair of cage girders 41.

As shown in FIG. 2, the straight stair unit 40 configured in this way is mounted on the mounting portion 31 d of the stair unit 30 with the other end portions of the pair of spar 41 being engaged. The part 41 c is installed in the staircase 20 by engaging with a second-floor frame 60 (an upper end portion of a pillar, a beam, a floor panel, etc.) constituting the second floor of the building 1. Further, a part of the plate members 13 and 13A is shielded by the sheathing girder 41, and from the hole 41d, a part of the plate members 13 and 13A and a fixed portion that is driven / screwed into the pillar 11 or the base material 12 from this part. The head of the tool 15 is exposed. In particular, when the hole 41d overlaps the joints J ₁ and J ₂ of the two plate members 13 and 13A, as shown in FIG. 5, the peripheral portions of the two plate members 13 that are in contact with each other and the respective plate members 13 and 13A are fixed. The heads of the two fixing tools 15 are exposed.

  The baseboard 50 is formed in a zigzag band shape along the upper surfaces of the tread plates 32 and 42 and the side surfaces of the kick plates 33 and 43, and is fixed to the walls 10 and 10A. Thus, a slight gap is shielded between the walls 10 and 10A and the surrounding staircase unit 30 or between the walls 10 and 10A and the straight staircase unit 40.

  The building 1 of the present embodiment configured as described above is in a state in which the straight stair unit 40 is not fixed to the walls 10 and 10A but is in contact with the walls 10 and 10A. For this reason, compared with the case where it is fixed to the walls 10 and 10A, vibration when a person goes up and down the straight staircase unit 40 is less likely to be transmitted to the wall 10, and footsteps are generated in adjacent rooms via the walls 10 and 10A. It is hard to sound.

[Building method]
Next, a method for constructing the building 1 having the above-described staircase 20 will be described.
First, the staircase unit 30 and the straight staircase unit 40 are assembled in a factory. At this time, with reference to the design drawing, holes 41d are formed in advance in the pair of spar girders 41 at locations that face the side surfaces of the pillars 11 and / or the base material 12. By doing so, the formation position of the hole 41d becomes a place where the fixing tool 15 is driven / screwed in as it is, so that the positioning work is saved and the subsequent fixing work becomes easy.

When the joints J ₁ and J _{2 of} the plate members 13 and 13A pass through the side of the kick plate 43 (see the vicinity of the engaging portion 41c in FIG. 2), the hole 41d is formed in the lower portion of the kick plate. However, it is difficult to form a plurality of holes 41d here because of the strength. In such a case, as shown in FIG. 4, only one plate member 13, 13 </ b> A is fixed to the side of the kick plate attaching surface 41 b (near the engaging portion 41 c) in the spar 41. What is necessary is just to form the hole 41e.

  In parallel with the manufacture of the stair units 30 and 40, a plurality of pillars 11 are erected on the construction site, and the base material 12 is erected as necessary. Then, the surrounding staircase unit 30 is carried and placed at a predetermined location on the first-floor frame 70 constituting the first floor of the building. Next, the straight stair unit 40 is carried in, placed around the lower end of the staircase unit 40 on the mounting portion 31d of the staircase unit 30 so that the spar 41 is in contact with the pillar 11 and the base material 12 constituting the inner wall 10, and The joint portion 41 c is installed in the staircase 20 by engaging the second-floor housing 60. At this time, a gap having a width slightly longer (a few millimeters) than the thickness of the three plaster boards is formed between the pillar 11 and the base material 12 constituting the boundary wall 10A and the straight stair unit 40.

Next, a plurality of plate members 13 are inserted into the gaps between the pillars 11 and the base material 12 and the surrounding staircase unit 30, and are fixed by a conventional method. Then, a plurality of plate members 13 and an inner gypsum board 13 a are inserted into the gaps between the pillars 11 and the base material 12 and the straight stair unit 40, and are fixed to the pillars 11 and the base material 12 using the fixture 15. In this case, joint J ₁ between adjacent inner plasterboard 13a and the inner gypsum board 13a goes side by side inside plasterboard 13a in contact with the side surfaces or the base material 12 of the pillar 11. In this way, from each hole 41d of sasara digit 41, peripheral portions of the two inner plasterboard 13a and will be these seams J ₁ is exposed, one hole the periphery of the two plate members 13 It can be fixed from 41d. A portion of the inner plaster board 13a that does not overlap with the spar 41 is directly fixed by the fixing tool 15 as before. The inner gypsum board 13a is fixed at a high place using the installed stair units 30 and 40 as scaffolds.

Then, a plurality of outer gypsum board 13b, seam _{J 2} is inserted offset from joint _{J 1} of the inner plasterboard 13a by the pitch of the fixture 15. Then, the outer gypsum board 13 b is fixed to the pillar 11 and the base material 12 using the fixing tool 15. Since there is a fixture 15 already fixing the inner gypsum board 13a on the other side of the outer gypsum board 13b facing the hole 41d, a new fixture is taken while being careful not to interfere with the fixture 15. 15 is driven / threaded to fix the outer gypsum board 13b.

  After the fixing of the plate material 13A, the straight stair unit 40A, 40B is moved until it comes into contact with the boundary wall 10A, and the plate material 13 is inserted between the pillar 11 and the base material 12 constituting the inner wall 10 and the straight stair unit 40. A gap is formed. And the board | plate material 13 is inserted in the clearance gap, and it fixes similarly to the inner side gypsum board 13a of 10 A of boundary walls. When the construction of the walls 10 and 10A is completed, the baseboard 50 is attached so as to close the gap formed between the walls 10 and 10A and the stair units 30 and 40. Thus, the building 1 having the staircase room 20 in which the straight staircase unit 40 is not fixed to the walls 10 and 10A is constructed.

  As described above, in the above-described embodiment, the steps 10 and 10 </ b> A are surrounded by the walls 10 and 10 </ b> A including the plate 11 and the plate members 13 and 13 </ b> A fixed to the side surface of the column 11 by the fixture 15. And a straight stair unit 40 (staircase) having a plurality of treads 42 provided on the sheathing girder 41 and arranged so that the sheathing girder 41 is adjacent to the walls 10 and 10A. In the construction method, a pillar 11 is erected at a predetermined location, a hole 41d having a diameter larger than that of the fixture 15 is formed in a portion of the spar 41 that faces the side surface of the pillar 11, and the straight stair unit 40 is formed. The side wall of the spar 41 is placed so as to be separated from the side surface of the column 11 by a distance equal to or greater than the thickness of the plate 13, and the plate 13 is inserted between the column 11 and the plate 41, and the plate 13 is inserted from the hole 41d. Drive the fixture 15 into the And so as to enter.

  By doing so, the plate members 13 and 13A are fixed to the pillar 11 using the fixture 15 from the hole 41d larger than the diameter of the fixture 15 opened in the spar 41, so that the plate member 13 is installed after the straight stair unit 40 is installed. , 13A can be inserted, it is possible to fix only the plate members 13 and 13A to the pillar 11 and to keep the straight stair unit 40 in contact with the walls 10 and 10A. For this reason, since the vibration at the time of going up and down the straight staircase unit 40 becomes difficult to be transmitted to the walls 10 and 10A, it is possible to make it difficult for footsteps to sound in the living room or the like adjacent to the walls 10 and 10A.

Further, in the above embodiment, the plate member 13 is inserted so that one end thereof is in contact with the side surface of the column 11, and the other plate member 13 is in contact with the side surface of the column 11 and the plate member 13. , 13A to be in contact with one side end, and the fixing tool 15 is driven or screwed into the one side end of the plate members 13 and 13A and the other side end of the other plate members 13 and 13A from the hole 41d. I was allowed to enter.
By doing so, the peripheral portions of the two adjacent plate members 13 and 13A are exposed from the hole 41d with the joints J ₁ and J ₂ sandwiched therebetween, so that the two plate members 13 and 13A can be fastened with one hole. it can. For this reason, the labor of construction can be reduced without excessively increasing the number of holes and reducing the strength of the further spar 41 more than necessary.

Further, in the above embodiment, the other hole 41e is shifted above or below the hole 41d and to the side of the joints J ₁ and J ₂ between the plate members 13 and 13A and the other plate member 13 rather than the hole 41d. It was made to form.
By doing so, the plate members 13 and 13A can be fixed at a plurality of locations using the plurality of holes 41d and 41e. Further, even when the kick plate 43 or the like is present directly above the hole 41d and the fixture 15 cannot be driven / screwed in or the hole 41d cannot be formed, the plate members 13 and 13A or other plate members It is possible to prevent the 13 and 13A from being insufficiently fixed.

Moreover, in the said embodiment, after installing the thing which has the kick board 43 as the straight stair unit 40 and fixing board | plate materials 13 and 13A, the baseboard 50 is put on the walls 10 and 10A, and the upper surface of the edge part of the tread board 42 is used. And it was made to attach along the edge part side surface of the kick board 43. FIG.
In this way, the kicking plate 43 shields the spar 41 and the hole 41d opened in the spar 41, and the skirting board 50 shields the gap generated between the walls 10 and 10A and the straight stair unit 40. Therefore, the appearance of the staircase 20 can be improved.

Moreover, in the said embodiment, the plaster board was used as the board | plate materials 13 and 13A.
Since gypsum board is an inexpensive material that is widely distributed as a building material, this makes it possible to construct walls easily and at low cost. Moreover, since the gypsum board has a soundproofing property, vibrations when going up and down the straight staircase unit 40 are more difficult to be transmitted to the walls 10 and 10A.

[Modification]
As mentioned above, although this invention was concretely demonstrated based on embodiment, this invention is not limited to the said embodiment, It can change in the range which does not deviate from the summary.
For example, in the above-described embodiment, a substantially straight staircase having one round stair unit 30 and one straight stair unit 40 has been described as an example. However, as shown in FIGS. Specifically, two straight staircase units 40A and 40B, a surrounding staircase unit 30 and a landing unit 80 are provided, and in the staircase 20, the inner wall 10 is interposed between the two straight staircase units 40A and 40B. In addition, the boundary wall 10 </ b> A may be provided around the staircase 20.
In the above-described embodiment, the straight stair unit 40 is fixed by placing the tread plate on the further girder, but may be fixed by inserting both ends of the tread plate into a side girder having a hole or a groove.
Moreover, in the said embodiment, although the straight staircase unit 40 shall be engaged with the second-floor housing 60, an upper end part is engaged with the second-floor housing 60 by providing the support member extended perpendicularly downward from an upper end part. It is good also as something that can be independent.
Moreover, in the said embodiment, although it was set as the staircase units 30 and 40 which have the kick boards 33 and 43, you may not have a kick board.
Moreover, in the said embodiment, although all the holes 41d and 41e were elongate holes, what is provided in the location where only one fixture is used is good also as a round hole.
Further, in the above embodiment, the straight stair units 40, 40 </ b> A, 40 </ b> B provided with the tread plate 42 and the kick plate 43 between the pair of the counter girders 41 are used. It may be provided only at one end side, and the other end side may be supported by a pillar or a stand.
Moreover, although the staircase of the said embodiment shall straddle the upper floor and lower floor of a multi-storey building, it is good also as straddling the floor surface from which the height in the same floor differs.
Moreover, although the staircase of the said embodiment shall be surrounded by the walls 10 and 10A on all four sides, what is necessary is just to have the walls 10 and 10A at least on the side of the spar 41.

1 Building 10 Inner wall (wall)
10A Wall (wall)
11 Pillar 12 Base material 13, 13 A Plate material 13 a Inner gypsum board 13 b Outer gypsum board 14 Heat insulating material 15 Fixture 20 Staircase 30 Staircase unit 31 Support base 31 a-31 c Support portion 31 d Mounting portion 32 Tread plate 33 Kick plate 40, 40A, 40B Straight stair unit (stair)
41 Sasara Girder (Girder)
41a Tread plate mounting surface 41b Kick plate mounting surface 41c Engaging portion 41d Hole 41e Hole (other holes)
42 step board 43 riser plate 50 baseboards 60 upstairs precursor 70 first floor building frame 80 landings unit _{F L} under floor _{F U} upstairs _J 1, _{J 2} seams

Claims (6)

Surrounded by a wall consisting of a column and a plate fixed to the side of the column by a fixture,
In a construction method of a staircase having a staircase material for staircases, and a plurality of treads provided in the girder material, and comprising a staircase arranged so that the girder material is adjacent to the wall,
Establish the pillar at a predetermined place,
The staircase in which a hole having a diameter larger than that of the fixture is formed in a portion that faces the side surface of the column in the beam material, and the side surface of the beam material is equal to or greater than the thickness of the plate material from the side surface of the column. Set up to be separated by a distance,
Inserting the plate material between the pillar and the beam member;
A method for constructing a staircase, wherein the fixing tool is driven or screwed into the plate member from the hole. In the construction method of the staircase according to claim 1,
Insert the plate material so that one side end abuts the side surface of the column,
Insert the other plate material so that the other side end abuts the side surface of the column and the one side end of the plate material,
A method for constructing a staircase, wherein the fixing tool is driven or screwed into each of one end portion of the plate member and the other end portion of the other plate member from the hole. In the construction method of the staircase according to claim 2,
A method for constructing a staircase, wherein the other hole is formed above or below the hole and shifted to the side of the joint between the plate member and the other plate member from the hole. In the construction method of the staircase according to any one of claims 1 to 3,
As the stairs, install a thing with a kick board,
After fixing the said board | plate material, the construction method of the staircase characterized by attaching a baseboard to the said wall so that the end part upper surface of the said tread board and the edge part side surface of the said kick board may be followed. In the construction method of the staircase according to any one of claims 1 to 4,
A staircase construction method, wherein a plaster board is used as the plate material. Surrounded by a wall consisting of a column and a plate fixed to the side of the column by a fixture,
In a staircase comprising a girder and a plurality of treads provided on the girder, and comprising a staircase arranged so that the girder is adjacent to the wall,
A hole having a diameter larger than that of the fixture is formed in a portion of the girder facing the column.
The fixing tool is driven or screwed into the portion exposed from the hole and the pillar in the plate material,
The staircase is characterized in that the staircase is not fixed to the wall.

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