JP4157973B2 - Residential stairs, how to build residential stairs - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a residential stairs and a method for constructing residential stairs, which are mainly applied to stairs in apartment houses and detached houses.
[0002]
[Prior art]
In maisonette-type apartments, the inner staircase was relatively narrow, and the stairs were often assembled after the wall framework was completed. In this case, since the staircase width is generally narrow (about 900 mm) and the working space is narrow, when the stepboard is made of steel plate, the stepboard is welded step by step and assembled into the staircase at the construction site. In addition, a staircase member has been proposed in which a step member and side girders are assembled in advance at a factory (Patent Document 1).
[0003]
[Patent Document 1]
JP-A-7-54451
[Problems to be solved by the invention]
The conventional former technique has a problem in that work efficiency is poor because the work that is assembled step by step in the field requires a lot of work on site and work in a narrow space. In addition, since there are many on-site welding operations, there is a problem that the appearance cannot be used unless the welding marks are processed and a finishing board or sheet is applied. In general, there was a lot of on-site work to completion, requiring complicated work.
[0005]
Further, in the latter latter technique, there is a description that the planar shape can be a rectangular shape, a triangular shape, a fan shape, or the like, but an integrated staircase member is assumed, and the staircase having a complicated turn is used. However, a large installation work space was required, and in particular, it was difficult to install the walls after construction.
[0006]
[Means for Solving the Problems]
However, in the present invention, the staircase is divided by installing the staircase members divided into the lateral support members installed on the support columns, and thus the above-mentioned problems are solved.
[0007]
That is, according to the present invention, a column is erected in a staircase installation space surrounded by an outer wall body, an inner wall body is constructed between the columns, and a lateral support member is installed at a predetermined position between the column and the outer wall body. fixed, lateral support material, forms a separate joining means between the lower edge of the upper stair member on the upper surface, to form a separate joining means between the upper edge of the lower stepped member on the side surface, adjacent wherein between the transverse support member, and each erection the plurality of stair members constituted by dividing a predetermined stairs, the upper and lower edge of the stair member, fixed to said separate joining means respectively both lateral support This is a residential stairs.
[0008]
Further, in the linear staircase member Jo Tokoro number, direction of travel and the step-member by combining angular stair members vary 90 degrees, the angle stair member, forms the upper side and the lower side in the same width It is a residential stairs. The staircase member is a residential staircase in which bolt holes are formed at the same position in the width direction at the upper end and the lower end, and the lateral support member is arranged with the joining means at the same position in the width direction as the bolt hole.
[0009]
Moreover, another invention is a construction method of a residential stairs characterized by construction through the following steps.
(1) A column is erected in the staircase installation space surrounded by the outer wall, and the inner wall is constructed between the columns.
(2) A plurality of lateral support members are installed and fixed between the support column and the outer wall body at a planar position where the step member is joined and according to the joining height of the step member. The transverse support forms a separate joining means between the lower edge of the upper stair member on the upper surface and form an independent joining means between the upper edge of the lower stepped member on the side surface.
(3) A step member is disposed between the adjacent lateral support members, and upper and lower edges of the step member are fixed to the independent joining means of both lateral support members.
[0010]
The wall body in the above is arbitrary as long as it has a wall surface capable of supporting one end of a lateral support material such as a structural wall or a partition wall. Therefore, the structure of the wall body is also arbitrary, such as a reinforced concrete system, a concrete board such as ALC, a frame shape made of steel or light steel.
[0011]
Moreover, the joining means in the above refers to a protruding structure such as a through-hole through which a bolt passes and a bolt shaft that can be inserted into a through-hole of a staircase member.
[0012]
In the above description, the term “for housing” is used, but “for housing” is used as a representative building space having the same structure, and it is needless to say that the use is not limited to office use or factory use.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
At the staircase construction position 43, the inner wall body 30 is constructed between the outer wall body 27, the columns 28 and 29, and the columns 28 and 29, respectively. Between the struts 28, 29 and the outer wall body 27, in accordance with the joining position and joined step heights member 1,11 stair width _{L 0,} to erection fixed lateral support 20A to 20E (FIGS. 1 (a) ). Step member 11 at the corner between the lateral support members 20A and 20B, a linear stair member 1 between the lateral support members 20B and 20C, and a step member 11 for corners between the lateral support members 20C and 20D, Step members 11 for corners are respectively arranged between the lateral support members 20D and 20E (FIG. 1B). The upper and lower edges of the respective staircase members 1 and 11 are installed and fixed to the lateral support members 20 and 20, and the construction of the staircase 45 is completed (FIG. 1C).
[0014]
At this time, the bolt holes 10, 10 of the joining rib 8 on the lower edge of the staircase members 1, 11 are communicated with the receiving holes 24, 24 of the upper surface material 21 of the lateral support member 20 located on the upper side, and further the staircase The bolt holes 10 and 10 of the joining rib 9 on the upper edge of the members 1 and 11 are communicated with the receiving holes 25 and 25 of the side member 23 of the lateral support member 20 located on the lower side and joined with bolts and nuts. (FIGS. 6A and 6B).
[0015]
[Example 1]
Embodiments of the present invention will be described with reference to the drawings.
[0016]
[1] Configuration of each member
(1) The straight staircase member 1 is formed by arranging bent steel plates in a staircase shape, forming a step plate 2 for three steps in which a step plate portion 31 and a kick-in portion 32 are alternately continued. , a position from both ends 3,3 is released by a predetermined distance _{L 1,} constructed by fixing a lower reinforcement plate (sasara digits) 5 of gradually shaped (FIG. 4 (a), the FIG. 6 (a)).
[0018]
The lower reinforcing plate 5 has an upper edge 6 shape along the back surface 4 of the tread plate ₂ and has a stepped shape in which a lower edge 7 is formed from the upper edge 6 with a length L2. Further, the lower edge of the bottom kick-in part 32 of the tread 2 is bent inwardly to form a joining rib 8, and bolt holes 10, 10 are formed in the joining rib 8. . Further, the upper edge of the uppermost tread plate portion 31 of the tread plate 2 is bent downward to form a joining rib 9, and bolt holes 10 and 10 are formed in the joining rib 9 (FIG. 6 ( a)). Further, a total of four bolt holes 10 are formed, one on each side of the lower reinforcing plate 5 (FIG. 4A).
[0019]
The number of steps of the tread board 2 is set to a desired number according to the place of use. Further, the step width L ₀ is set (FIG. 4).
[0020]
(2) The staircase member 11 at the corner is substantially L-shaped in plan, and includes a step plate 13 for two steps in which the step plate portion 31 and the kick-in portion 32 are continuous, and a lower reinforcing plate 15 fixed to the lower surface of the step plate 13. (FIG. 4B).
[0021]
Similarly to the linear staircase member 1, the lower reinforcing plate 15 has an upper edge shape along the back surface 14 of the tread plate 12 and has a shape in which a lower edge is formed with a length L or more from the upper edge. Furthermore, it arrange | positions also in the position which crosses the tread board 12. FIG. In addition, one edge of the lower reinforcing plate 5 is projected from the outer peripheral edge of the tread plate 12 to form a connecting portion 16. The connecting portion 16 may be formed by at least one lower reinforcing plate 5.
[0022]
Further, the lower edge of the lowermost kick section 32 of the tread 12 is bent inwardly to form the joining rib 8, and the upper edge of the uppermost tread 31 of the tread 12 is directed downward. The joint ribs 9 are formed by bending, and bolt holes 10 and 10 are formed in the joint ribs 8 and 9, respectively (FIG. 6A). Further, as with the linear staircase member 1, a total of four bolt holes 10, 10 are formed, one on each side, sandwiching the lower reinforcing plate 15 (FIG. 4B).
[0023]
Further, in the upper 33 and lower 34, it is to match the stair width L _0. In addition, as for the staircase member 11 at the corner, a staircase member 11A (FIG. 4 (c)) having no step and a staircase member 11B (FIG. 4 (d)) having one step are prepared in addition to two steps.
[0024]
The lower reinforcing plates 5 and 15 are fixed to connect the step plates 2 and 12, and the step members 1 and 11 are joined to the lateral support member 20 via the joining ribs 8 and 9 of the step plate. .
[0025]
(3) The lateral support member 20 is made of a grooved steel formed by connecting a top member 21 and a bottom member 22 each having a rib 26 on a free edge with a side member 23, and has a predetermined length L ₂ (a column and a wall body). And a length that can be installed between the two (FIGS. 5A and 5C).
[0026]
The positions of the bolt holes 10, 10 drilled in the respective staircase members 1, 11 are common, and a receiving hole (joining means) 24 is formed in the upper surface material 21 of the lateral support member 20 corresponding to the position of the bolt holes 10. Then, receiving holes (joining means) 25 are formed in the side members 23 (FIG. 5). Receiving holes 24 and 25 is formed with a long elongated hole in the horizontal direction (length L ₂ direction of the transverse support 20).
[0027]
[2] Construction of stairs [0028]
(1) In this example,
Horizontal support members 20A to 20E Five stepped two-step corner staircase members 11 Three stepped three-step linear staircase members 1 are used.
[0029]
(2) At the staircase construction position 43, the outer wall 27 is constructed by assembling lightweight steel frames into a frame shape. Also, near the position in contact with the floor inside the plane of the outer wall 27 (near the uppermost or lowermost tread) or the center position of the surrounding staircase part (the inner periphery side of the corner staircase member) and will be used The columns 28 and 29 are erected at positions where the inner sides of all the lateral support members 20 can be supported. The columns 28 and 29 are erected on the floor of the reference floor, and an inner wall body 30 is constructed between the columns 28 and 29 (FIG. 1A).
[0030]
(3) At the position of the floor 36 on the reference floor, the bottom horizontal support member 20A is erected and fixed to the support column 28 and the outer wall body 27, and at the position of the floor 38 on the next floor, The upper horizontal support member 20E is installed and fixed, and between the horizontal support members 20A and 20E, the horizontal support member 20E is placed between the support column 28 (29) and the outer wall body 27 in accordance with the joining position of the step members 1 and 11. The support members 20B, 20C, and 20D are installed and fixed (FIG. 1A).
[0031]
The lowermost horizontal support member 20A is adjusted to the height (level) of the floor 36 of the reference floor, the horizontal support member 20A and the horizontal support member 20B are three steps, and the horizontal support member 20B and the horizontal support member 20C are four steps. The horizontal support member 20C and the horizontal support member 20D are arranged in three steps, and the horizontal support member 20D and the horizontal support member 20E are arranged in three steps, each of which is raised in height, corresponding to the number of steps of the step members 1 and 11 to be used. It is.
[0032]
(4) A staircase member 11 at the corner is arranged between the lower horizontal support member 20A and the horizontal support member 20B (FIG. 1B), and the staircase member 11 is formed on the upper surface of the lower horizontal support member 20A. The lower joint rib 8 is placed, and bolts are passed through the receiving hole 24 and the bolt hole 10 that are communicated with each other, and fixed with nuts. Further, the joint rib 9 on the upper side of the staircase member 11 is brought into contact with the side surface of the lateral support member 20, and vibration-proof rubber is put on the communicating receiving hole 25 and bolt hole 10 and fixed with a nut (FIG. 6A). (B)).
[0033]
Similarly, the linear staircase member 1 is installed on the lateral support members 20B and 20C (FIGS. 1B and 6A), and similarly fixed with bolts and nuts. Similarly, the corner staircase members 11 and 11 are attached, and the construction of the staircase 45 is completed (FIG. 1C).
[0034]
Here, although the staircase members 11, 1, 11 are installed in order from the bottom, they can also be installed in order from the top. Moreover, since the receiving holes 24 and 25 are independent with respect to each of the lateral support members 20A to 20E, the mounting is started from the staircase members 1 and 11 at an arbitrary portion in the middle, or the plurality of staircase members 1 and 11 Can be started at the same time.
[0035]
(5) Subsequently, the finishing plates 46 and 47 are placed and fixed on the tread plates 2 and 12 of the staircase members 1 and 11 and the raised portion 32 of the staircase members 1 and 11, respectively (FIG. 6B). In addition, inside the staircase 45, the finishing wall materials 41 and 41 are attached so as to conceal and cover the columns 28 and 29 and the inner wall body 30 between the columns 28 and 29 (the outer periphery of the inner wall body 30). Further, on the outer peripheral side of the staircase 45, a finishing wall material 40 is attached between the outer periphery of the staircase 45 and the outer wall body 27 so as to cover and cover the outer wall body 27. To complete.
[0036]
According to the present embodiment, since the staircase members 1 and 11 can be produced at the factory and only assembly work using bolts and nuts is performed on the site, the staircase members 1 and 11 with the finish plates 46 and 47 attached in advance at the factory. Can also be brought into the field. Moreover, since the appearance which does not produce a welding trace etc. on the staircase members 1 and 11 can be formed, the finishing plates 46 and 47 can be omitted.
[0037]
(6) In the above, the layout of the stairs 45 can be freely changed according to the plan of the residence. Also in this case, the staircase can be constructed by arbitrarily combining the linear staircase member 1 and the corner staircase member 11.
[0038]
For example, in the case of constructing 14 steps, the staircase 45 is formed by sequentially combining the straight staircase member 1 of the step 4, the staircase member 11 B for the corner of the two steps 1, and the straight staircase member 1 of the step 4. (FIG. 2 (a)), or a staircase 45 is formed by sequentially combining the staircase member 11 for the corner of the step 2, the straight staircase member 1 of the step 6, and the staircase member 11 for the corner of the step 2. 2 (b)), or a straight staircase member 1 with a step 1, a staircase member 11A for a corner without a step, a straight staircase member 1 with a step 6, a staircase member 11A for a corner without a step, a step 1 The straight staircase members 1 can be combined in order to form the staircase 45 (FIG. 2C).
[0039]
Similarly, a straight staircase member 1 having a step 2, a staircase member 11 </ b> A for a corner without a step, and a straight staircase member 1 having a step 7 are arranged in order and arranged in a plane L shape, and a staircase 45 is formed. It can also be configured (FIG. 3A). Further, the staircase 45 is configured by sequentially arranging the stepped linear member 1 of the step 2, the stepped member 11 for the corner of the stepped portion 2, and the linear stepped member 1 of the stepped portion 7 in a plane L shape. (FIG. 3A).
[0040]
[3] Other embodiments
(1) In the above-described embodiment, the uppermost step board portion 31A of the lower staircase member 1 (11) and the lowermost stepboard portion of the upper staircase member 1 (11) at the portion joined to the lateral support member 20. Although it is configured to form a step H for one step according to the kicking height with respect to 31B (FIG. 6B), it can be configured not to form a step.
[0042]
For example, the staircase member 1 (11) is extended downward in accordance with the kicking height H for one step by forming the joining rib 9 portion downward to form the drooping portion 49, and the lower end of the drooping portion. The portion is formed as a joining rib 9 and is similarly formed by drilling bolt holes 10 and 10 (FIG. 7A). In this case as well, the lower step member 1 (11) is communicated with the receiving holes 25 and 25 of the lateral support member 20 and the bolt holes 10 and 10 and joined with bolts and nuts (FIG. 7b). If the staircase member 1 (11) configured in this way is used on the lower side, the uppermost tread plate portion 31A of the lower staircase member 1 (11) and the lowermost step of the upper staircase member 1 (11) The tread portion 31B is arranged at the same height, and the area of the tread can be increased. For example, it can be used when forming a landing.
[0043]
(2) In the above-described embodiment, the grooved steel is used for the lateral support member 20, but if it has a predetermined strength and can form the receiving hole 24 on the upper surface and the receiving hole 25 on the side surface, an angle steel (L-shaped) It can also be formed in other shapes such as (not shown).
[0044]
(3) In the above-described embodiment, the receiving holes 24 and 25 are formed in the lateral support member 20, but instead of the receiving hole as a joining means, a bolt shaft (joining means) may be provided protruding from the same position. Yes (not shown). In this case, since the bolt shaft is inserted into the bolt hole 10 of the staircase members 1 and 11, it is desirable that the bolt hole 10 be formed as a laterally long hole (not shown).
[0045]
【The invention's effect】
Since a horizontal support material is installed between the support and the outer wall body, and the staircase member is installed and fixed between the horizontal support materials, a narrow staircase installation space is arranged after the wall body is constructed. This has the effect of building stairs.
[0046]
Further, if the joining means is formed on the upper surface and the side surface of the lateral support material, the upper edge of the staircase member is joined to the side surface of the lateral support material located on the upper side, and the staircase member is disposed on the upper surface of the lateral support material located on the lower side. Since the lower edge can be joined, there is an effect that the joining work can be simplified and construction can be performed from a stepped member at an arbitrary position.
[0047]
In addition, a combination of linear staircase members and corner staircase members with the same width in the vertical direction, or by forming bolt holes of the staircase members and receiving means for the lateral support material at the same position in the width direction, any staircase A staircase can be constructed corresponding to a flat layout. In addition, the staircase member can be efficiently configured by using a small number of types of staircase members.
[0048]
Therefore, according to the staircase or the staircase construction method of the present invention, there is an effect that it is possible to improve the efficiency of construction of the staircase in which one dwelling unit is arranged in a maisonette-type apartment house having a plurality of layers.
[Brief description of the drawings]
FIG. 1 is a plan view showing an assembling step of a staircase according to an embodiment of the present invention, where (a) shows a state in which a lateral support member is installed, (b) shows a state in which a staircase member is arranged, and (c) shows completion of assembly. Each state.
FIGS. 2A to 2C are plan views showing different planar structures of stairs according to the present invention.
FIGS. 3A and 3B are plan views showing different planar structures of steps according to the present invention.
FIGS. 4A and 4B are step members used for carrying out the present invention, wherein FIG. 4A shows a linear step member, and FIGS. 4B to 4D show corner step members.
5A is a plan view, FIG. 5B is a front view, and FIG. 5C is a cross-sectional view taken along the line AA in FIG. 5B.
FIGS. 6A and 6B are longitudinal sectional views showing the joining of the step member and the lateral support member, where FIG. 6A shows before assembly and FIG. 6B shows after assembly.
FIG. 7 is a longitudinal sectional view showing the joining of another step member and a lateral support member, each showing an assembled state.
[Explanation of symbols]
1 Stairs (Linear)
2 Tread plate 4 Back surface of the tread plate 5 Lower reinforcing plate 6 Upper edge of the lower reinforcing plate 7 Lower edge of the lower reinforcing plate 8 Bonding rib (lower)
9 Bonding rib (top)
10 Bolt hole 11 Stair member (for corner)
12 Treading plate 14 Back surface 15 of the treading plate Lower reinforcing plate 16 Connecting protrusions 20 and 20A to 20E of the lower reinforcing plate Lateral support member 21 Upper support member 22 of the transverse support member Lower member 23 of the transverse support member Side member 24 of the lateral support member (Top material)
25 Receiving hole (side material)
27 outer wall body 28 support column 29 support column 30 inner wall body 31 tread plate portion 32 kick-in portion 33 upper stage side of stair member 34 lower step side of stair member 36 reference floor 38 next floor 40 finishing wall material (outer peripheral side)
41 Finish wall material (inner circumference side)
43 Stair installation space 45 Stair 46 Finish plate of tread part 47 Finish plate of kick part 49 Lower part of tread board

Claims (4)

Establish a column in the staircase installation space surrounded by the outer wall body, build an inner wall body between the columns,
A lateral support member is installed and fixed at a predetermined position between the support column and the outer wall body. The lateral support member forms an independent joining means with the lower edge of the upper step member on the upper surface, and the lower support member on the side surface. forming a separate joining means between the upper edge of the stair member, between adjacent said transverse support member, a plurality of stair members constituted by dividing a predetermined stairs respectively bridged, the upper and lower edge of the stair member, A residential staircase characterized in that each of the lateral support members is fixed to the independent joining means.   The straight stair member having a predetermined number of steps and a stair member for a corner whose traveling direction changes by 90 degrees are combined to form a stair member, and the upper and lower steps of the corner stair member are formed to have the same width. Residential stairs.   The residential staircase according to claim 1, wherein the staircase member has bolt holes formed at the same position in the width direction at the upper end and the lower end, and the lateral support member has a joining means disposed at the same position in the width direction as the bolt hole. A method for constructing a residential staircase, characterized by the following steps.
(1) A column is erected in the staircase installation space surrounded by the outer wall, and the inner wall is constructed between the columns.
(2) A plurality of lateral support members are installed and fixed between the support column and the outer wall body at a planar position where the step member is joined and according to the joining height of the step member. The transverse support forms a separate joining means between the lower edge of the upper stair member on the upper surface and form an independent joining means between the upper edge of the lower stepped member on the side surface.
(3) A step member is disposed between the adjacent lateral support members, and upper and lower edges of the step member are fixed to the independent joining means of both lateral support members.

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