JP6996836B2 - Fixed structure of stair columns and stair columns and stair handrails - Google Patents

Description

The present invention relates to a staircase column used for an open staircase in which the side of the staircase is open, and a fixed structure of the staircase column and a staircase handrail.

Conventionally, a staircase (open staircase) in which the side of the staircase is open is known. 13 and 14 are side views and plan views showing the overall structure of the stairs (open stairs) according to the conventional example. A staircase 4 is provided between the downstairs (for example, the first floor) and the upstairs (for example, the second floor) from the floor 3 to the ceiling 1. The stairs 4 are configured in a plurality of steps by placing the tread 5 on the sasara girder 6, and the handrail support column 30 is provided at the open side end of each tread 5 (front side in FIG. 13, right side in FIG. 14). It is erected. A staircase handrail 20 is attached to the upper part of the handrail support column 30.

In the portion where the stairs 4 are provided, an opening without a ceiling 1 is provided to secure a space from the downstairs to the upstairs. Here, as shown in FIG. 14, assuming that the distance from the line X on the surface of the wall 2 to the line Y on the outside of the handrail 20 is W ₂ , an opening without a ceiling 1 for passing the handrail 20 from downstairs to upstairs. The section must be designed to be at least the width of W ₂ .

On the other hand, as an invention relating to an open staircase, Patent Document 1 states that a plurality of handrail members A having a handrail piece 2 projecting from the upper end of the baluster 1 are connected to form a handrail suitable for the shape of the staircase. The invention described in the above is described. Further, Patent Document 2 describes an invention in which a staircase handrail mounting unit including an arrangement member 11, a support column 13, and a handrail body support member 14 is used to flexibly cope with a difference in staircase gradient and depth of a tread. There is. Further, Patent Document 3 describes an invention in which the open staircase side handrail 8 and the side wall side handrail 10 are connected in a series by a connecting handrail 11 to improve usability.

Jitsukaihei 1-168632 Gazette Japanese Patent No. 5244022 Japanese Patent No. 3610947

By the way, in architectural design, structural calculation or the like is often performed on the premise that the module, which is a standard dimension, is used as a unit and the design of each part is a module unit. In particular, when considering design changes, it is efficient to keep the design for each module. The module most often used in Japanese residential construction is the so-called shaku module, which is designed with 910 mm (3 shaku) as the basic dimension.

Here, when the 910 mm module is applied to the conventional stairs (open stairs) shown in FIGS. 13 and 14, the following problems occur. That is, considering the width of the handrail and the width of the tread that satisfies the Building Standards Act, the width of the opening of the ceiling 1 required for passing the handrail 20 from the downstairs to the upstairs may exceed the module unit. In such a case, if the width of the opening of the ceiling 1 is made wider than that of the module unit, the advantage of designing each portion in the module unit is lost. Such a design is possible if there is no budget limit, but when considering cost reduction, it is desirable to design while observing the module unit.

Therefore, the width of the opening of the ceiling 1 is not widened, but for that purpose, the handrail 20 is abandoned from the downstairs to the upstairs. However, even in that case, it is necessary to install a support between the open side end of the tread and the ceiling to prevent the stairs from falling. In that case, the upper end of the column will be stuck to the ceiling, so the length of the column must be adjusted to the distance between the open side end and the ceiling, and then the upper end of the column must be fixed in some way. Since there is a problem in strength simply by nailing or gluing the upper end of the column, and the distance from the tread to the ceiling of each step is different, it is necessary to prepare columns of multiple lengths.

Furthermore, it is conceivable to install handrails near the downstairs of the stairs (the part that does not reach the ceiling), but it is unstable just by installing pillars on the treads to support the handrails. ..

On the other hand, although the inventions described in Patent Documents 1 to 3 relate to open stairs, they cannot be applied to solve the above-mentioned problems with the design of module units.

The present invention solves the above-mentioned conventional problems, and provides a staircase support column that can be appropriately installed between the open side end of a staircase tread and the ceiling in a module-based design. Is. Further, it provides a fixing structure of a staircase support and a staircase handrail that can stably fix a handrail installed near the lower floor of the staircase.

In order to solve the above problems, the staircase support of the present invention is a staircase support that is erected between the open side end of the stair tread with at least one of the left side and the right side open and the ceiling. It is characterized by having an upper fixing member for fixing the support main body, the support main body and the ceiling, and a lower fixing member for fixing the support main body and the tread.

Further, it is preferable that at least one of the upper fixing member and the lower fixing member is vertically and contractably connected to the support column main body portion.

Further, it is preferable that the support column main body portion can be cut to a required length.

Further, it is preferable that the support column main body portion can be expanded and contracted.

Further, in the fixed structure of the stair support and the stair handrail of the present invention, the stair support is erected between the open side end of the tread of the stair where at least one of the left side and the right side is open and the ceiling. And a fixed structure with a staircase handrail installed on the lower floor side of the staircase support, the staircase support has a support main body portion, an upper fixing member for fixing the support main body portion and the ceiling, and an upper fixing member. It has a lower fixing member for fixing the main body of the stairs and the tread, and the upper end of the staircase handrail is fixed to the lowest of the erected staircases. And.

The staircase stanchion of the present invention is a staircase stanchion erected between the open side end of the tread of a staircase in which at least one of the left side and the right side is open and the ceiling. Further, it has an upper fixing member for fixing the support main body, the support main body and the ceiling, and a lower fixing member for fixing the support main body and the tread. Therefore, the staircase column can be firmly fixed between the open side end of the tread and the ceiling. Therefore, even if the width of the ceiling opening of the stairs is narrow and the handrail cannot be passed from downstairs to upstairs when designing for each module, instead of passing the handrail, fall prevention A staircase stanchion for the purpose can be installed between the open side end of the tread and the ceiling.

Further, when at least one of the upper fixing member and the lower fixing member is connected to the main body of the column so as to be vertically expandable, the distance between the open side end of the tread and the ceiling and the stairs. It is possible to deal with slight differences from the length of the columns. In addition, smooth construction is possible by shortening the overall length, inserting it into the installation location, and then extending and fixing the entire length.

In addition, if the main body of the support can be cut to the required length, even if the distance from the tread to the ceiling of each step is different, it is sufficient to cut it, so prepare columns of multiple lengths. You don't have to.

Further, when the main body of the support is expandable and contractible, even if the distance from the tread of each step to the ceiling is different, it is sufficient to expand and contract the support, so that it is not necessary to prepare columns of a plurality of lengths.

Further, the fixed structure of the staircase column and the staircase handrail of the present invention is for a staircase erected between the open side end of the staircase tread with at least one of the left side and the right side open and the ceiling. It is a fixed structure between the columns and the handrails for stairs installed on the lower floor side of the columns for stairs. The staircase column has a column body, an upper fixing member for fixing the column body and the ceiling, and a lower fixing member for fixing the column body and the tread, and the upper end of the staircase handrail. The part is fixed to the lowest of the erected staircase columns. Therefore, the staircase column can be firmly fixed between the open side end of the tread and the ceiling, and the staircase handrail can also be firmly fixed.

As described above, according to the present invention, it is possible to provide a staircase support column that can be appropriately installed at the open side end of the staircase tread in the design of each module. Further, it is possible to provide a fixing structure between the staircase support and the staircase handrail, which can stably fix the handrail installed near the lower floor of the staircase.

It is a side view which shows the whole structure of the stairs which concerns on embodiment of this invention. It is a top view which shows the whole structure of the stairs which concerns on embodiment of this invention. It is an enlarged view which shows the fixing structure of the staircase support. It is (a) side view and (b) plan view which shows the support main body part. It is (a) side view and (b) bottom view which shows the upper fixing member. It is (a) side view and (b) plan view which shows the lower fixing member. It is explanatory drawing which shows the mounting method of the support for stairs. It is an enlarged view which shows the fixed structure of a staircase support and a staircase handrail. It is (a) side view and (b) plan view which shows the handrail fixing member. It is a figure which shows the state which attached the handrail fixing member to the support main body part. It is (a) side view and (b) plan view which shows the handrail support member. It is a top view which shows the whole structure of the stairs which concerns on other embodiment. It is a side view which shows the whole structure of the stairs which concerns on a conventional example. It is a top view which shows the whole structure of the stairs which concerns on a conventional example.

Next, with reference to FIGS. 1 to 12, a staircase column and a fixed structure of the staircase column and the staircase handrail according to the embodiment of the present invention will be described. First, the entire structure of the stairs according to the embodiment of the present invention will be described with reference to FIGS. 1 and 2. The same parts as those of the conventional example are designated by the same reference numerals, and the description thereof will be omitted as appropriate.

A staircase 4 is provided between the downstairs (for example, the first floor) and the upstairs (for example, the second floor) from the floor 3 to the ceiling 1. The stairs 4 are configured in a plurality of steps by placing the tread 5 on the sasara girder 6. Of each tread 5, a handrail support column 30 is erected at the open side end portion (front side in FIG. 1, right side in FIG. 2) of the first to fifth steps of the tread from the bottom. A staircase handrail 20 is attached to the upper part of the handrail support column 30.

Further, among the treads 5, the staircase stanchions 10 are erected at the open side ends of the treads on the 6th to 11th steps from the bottom, and the upper end of the staircase stanchions 10 is fixed to the ceiling 1. The staircase column 10 is in a state of being erected between the open side end of the tread 5 and the ceiling 1. The boundary between the tread 5 on which the staircase stanchion 10 is installed and the tread plate 5 on which the handrail stanchion 30 is installed is not particularly limited. Further, it is also possible to install the staircase support column 10 from the bottom of the staircase without installing the staircase handrail 20. Since the wall surface appears on the stairs side in the portion above the ceiling 1, a handrail can be provided separately.

Here, in the portion where the stairs 4 are provided, an opening without a ceiling 1 is provided to secure a space from the downstairs to the upstairs. In this embodiment, in order to design in module units, as shown in FIG. 2, the distance from the line X on the surface of the wall 2 to the line Y on the outside of the handrail 20 is W ₂ , and the width of the opening without the ceiling 1 is set. Assuming that (the distance from the line X on the surface of the wall 2 to the ceiling end Z) is W ₁ , the relationship is W ₁ <W ₂ . Therefore, instead of passing the handrail 20 from downstairs to upstairs, a staircase support column 10 is installed between the open side end of the tread 5 and the ceiling 1 to prevent the handrail from falling from the stairs.

Next, with reference to FIG. 3, the fixing structure of the staircase support column 10 will be described. The staircase column 10 erected between one tread 5 and the ceiling 1 has two column body portions 11a and 11b, an upper fixing member 12, and a lower fixing member 13. The column main bodies 11a and 11b are fixed to the ceiling 1 via the upper fixing member 12 and fixed to the tread 5 via the lower fixing member 1. Further, the upper fixing member 12 is fixed to the ceiling 1 by screws 7, and the lower fixing member 13 is fixed to the tread 5 by screws 8. The column main body 11b installed on the upper floor is in contact with the tread 5 on the upper step. In addition, both may be fixed in this contact portion. Further, a cosmetic cover may be attached to the lower fixing member 13.

Next, with reference to FIGS. 4 to 6, the column main body portion 11, the upper fixing member 12, and the lower fixing member 13 constituting the staircase column 10 will be described. The material of the staircase support column 10 is not particularly limited, but by using, for example, aluminum or the like, it is possible to secure the strength while facilitating the processing. The same applies to the handrail support column 30, the handrail fixing member 40, and the handrail support member 50, which will be described later.

As shown in FIG. 4, the column main body 11 (11a, 11b) is composed of two rectangular long members, and the inside is formed in a hollow shape. Further, the column main body 11 can be cut to a required length. As a result, even if the distances from the treads 5 to the ceiling 1 of each step are different, it is sufficient to cut them to cope with them, so that it is not necessary to prepare columns having a plurality of lengths.

As shown in FIG. 5, the upper fixing member 12 is composed of a plate-shaped portion 12a and leg portions 12b and 12c, and is formed in a substantially U-shape in a side view. The legs 12b and 12c are inserted into the hollow portions of the support column main bodies 11a and 11b, and are connected to the support column main body 11 so as to be vertically expandable and contractible. Further, the plate-shaped portion 12a is formed with holes 12d and 12e for inserting the fixing screw 7 to the ceiling 1. It is also possible to expand and contract the plate-shaped portion 12a of the upper solid member 12 in the longitudinal direction so as to correspond to the distance between the column main body portions 11a and 11b.

As shown in FIG. 6, the lower fixing member 13 is composed of four plate-shaped portions 13a, 13b, 13c, and 13d. Of these, the plate-shaped portions 13a and 13c are fixed to the lower end of the column main body 11a, and the plate-shaped portions 13b and 13d are fixed to the lower end of the column main body 11b by welding or the like. Of course, it can also be fixed by other fixing means such as screwing. Further, the plate-shaped portions 13a and 13d are slidable in the longitudinal direction, and can be fixed at arbitrary positions by screwing or the like to adjust the spacing between the column main body portions 11a and 11b. ing. Further, holes 13e and 13f for inserting screws 8 for fixing to the tread 5 are formed in the plate-shaped portions 13a, 13b, 13c and 13d.

Next, a method of attaching the staircase support column 10 will be described with reference to FIG. 7. First, the column main body 11 is cut according to the distance from the tread 5 of each step to the ceiling 1. Next, the upper fixing member 12 and the lower fixing member 13 are connected to the support column main body 11. In the present embodiment, the lower fixing member 13 is fixed to the column main bodies 11a and 11b by welding or the like. When the legs 12b, 12c of the upper fixing member 12 are inserted into the hollow portions of the column main bodies 11a, 11b, they are stopped at a fixed position by the protruding portions (not shown) formed in the legs 12b, 12c. It has become. Then, the staircase column 10 is arranged between the tread 5 and the ceiling 1.

At this time, a slight gap A is formed between the upper fixing member 12 and the ceiling 1 as shown in FIG. 7. That is, the column main body 11 is cut so that a gap A is generated with the upper fixing member 12 inserted as much as possible. Then, while pulling out the upper fixing member 12 from the column main body 11, it is pushed up toward the ceiling 1 so that the gap A disappears and fixed with screws.

Here, when cutting the column main body 11 according to each step, it is preferable to measure the distance of each step and then determine the length in order to ensure accuracy. However, for construction efficiency, after measuring the distance at the bottom stage, the length at the other stages can be determined in consideration of the rise height. Then, depending on the height of each rise and the accuracy of the ceiling surface, a slight error must occur. On the other hand, if the upper fixing member 12 is connected to the column main body 11 so as to be expandable and contractible in the vertical direction, such a delicate error can be dealt with and the construction efficiency can be improved.

Next, with reference to FIG. 8, the fixing structure of the staircase support column 10 and the staircase handrail 20 will be described. A handrail 20 for stairs is installed on the lower floor side of the pillar 10 for stairs. The handrail 20 for stairs is attached to the upper part of the handrail support column 30 erected at the open side end of the tread 5 via the handrail support member 50. Then, the upper end of the staircase handrail 20 is fixed to the lowest step (post main body portion 11a) of the erected staircase columns 10 via the handrail fixing member 40. The handrail support member 50 and the handrail fixing member 40 are fitted into a groove formed on the back surface of the handrail 20 for stairs and fixed by screwing or the like.

Next, the handrail fixing member 40 and the handrail support member 50 will be described with reference to FIGS. 9 to 11. As shown in FIG. 9, the handrail fixing member 40 is composed of a plate-shaped portion 40a and a mounting portion 40b, and the plate-shaped portion 40a and the mounting portion 40b are rotatably connected by the connecting portion 40c. , It is possible to correspond to the inclination angle of the handrail 20 for stairs. The plate-shaped portion 40a has a staircase handrail 20 fixed to the upper surface by a screw or the like.

Further, as shown in FIG. 10, an engaging groove 11c is formed in the vertical direction on the downstairs surface of the column main body portion 11a, and the mounting portion 40b is fitted into the engaging groove 11c and is fitted in the vertical direction. It is designed to slide. This makes it possible to match the height of the upper floor end of the handrail 20 for stairs.

As shown in FIG. 11, the handrail support member 50 is composed of a plate-shaped portion 50a and leg portions 50b, 50c, and the plate-shaped portion 50a and the leg portions 50b, 50c are rotated by connecting portions 50d, 50e. It is connected so that it can correspond to the inclination angle of the handrail 20 for stairs. The plate-shaped portion 50a has a staircase handrail 20 fixed to the upper surface by a screw or the like. The structure of the handrail support column 30 is the same as that of the support column main body portion 11, and the leg portions 50b and 50c can be inserted and attached.

FIG. 12 is a plan view showing the structure of the stairs according to another embodiment. This is for a staircase in which both the left and right sides are open, and the staircase columns 10 are erected between the left and right side ends of the tread 5 and the ceiling 1. As shown in FIG. 12, the distance from the left handrail 20 outer line Y to the right handrail 20 outer line Y is W3 _, and the width of the opening without the ceiling 1 (from the ceiling end Z on the left side to the ceiling on the right side). Assuming that the distance to the end Z) is W ₁ , the relationship is W ₁ <W ₃ . Therefore, instead of passing the handrail 20 from downstairs to upstairs, a staircase support column 10 is installed between the left and right side ends of the tread 5 and the ceiling 1 to prevent the handrail from falling from the stairs.

Thus, the present invention can be applied to at least one open staircase on the left side and the right side.

The staircase support column 10 according to the present embodiment is a staircase support column 10 erected between the open side end of the staircase tread 5 having at least one of the left side and the right side open and the ceiling 1. Further, it has a support column main body portion 11, an upper fixing member 12 for fixing the support column main body portion 11 and the ceiling 1, and a lower fixing member 13 for fixing the support column main body portion 11 and the tread plate 5. Therefore, the staircase column 10 can be firmly fixed between the open side end of the tread 5 and the ceiling 1. Therefore, when the design is maintained for each module, even if the width of the opening of the ceiling 1 of the stairs is narrow and the handrail 20 cannot be passed from the downstairs to the upstairs, instead of passing the handrail 20. A staircase column 10 for preventing a fall can be installed between the open side end of the tread 5 and the ceiling 1.

Further, since the upper fixing member 12 is connected to the column main body 11 so as to be vertically expandable, the distance between the open side end of the tread 5 and the ceiling 1 and the length of the stair column 10 Can cope with minor differences in. In addition, smooth construction is possible by shortening the overall length, inserting it into the installation location, and then extending and fixing the entire length.

Further, since the support main body 11 can be cut to a required length, even if the distance from the tread 5 of each step to the ceiling 1 is different, it is sufficient to cut the support, so that a support having a plurality of lengths can be cut. No need to prepare.

Further, in the fixed structure of the staircase support 10 and the staircase handrail 20 according to the present embodiment, at least one of the left side and the right side is between the open side end of the stair tread 5 and the ceiling 1. It is a fixed structure of the staircase column 10 to be erected and the staircase handrail 20 installed on the lower floor side of the staircase column 10. The staircase support column 10 has a support column main body portion 11, an upper fixing member 12 for fixing the support column main body portion 11 and the ceiling 1, and a lower fixing member 13 for fixing the support column main body portion 11 and the tread plate 5. The upper end of the staircase handrail 20 is fixed to the lowest of the erected staircase columns 10. Therefore, the staircase column 10 can be firmly fixed between the open side end of the tread 5 and the ceiling 1, and the staircase handrail 20 can also be firmly fixed.

As described above, according to the staircase support column 10 according to the present embodiment, it can be appropriately installed at the open side end portion of the staircase tread 5 in the design of each module. Further, according to the fixing structure of the staircase support 10 and the staircase handrail 20 according to the present embodiment, the handrail 20 installed in the portion near the downstairs can be stably fixed.

Although the fixed structure of the staircase column and the staircase column 10 and the staircase handrail 20 according to the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various other aspects are described. It can be changed.

For example, in the above embodiment, the column main body 11 is composed of two long members, but it may be composed of one or three or more.

Further, in the above embodiment, the upper fixing member 12 is stretchably connected to the support column main body 11, but the lower solid member 13 may be stretchably connected to the support column body 11 or fixed to the upper part. Both the member 12 and the lower fixing member 13 may be connected in a stretchable manner. Further, the stretchable connecting structure is not particularly limited.

Further, in the above embodiment, the column main body 11 can be cut to cope with the difference in the distance from the tread to the ceiling of each step, but the column main body 11 is configured to be expandable and contractible. You may do it. When the support column main body 11 can be expanded and contracted, even if the distance from the tread plate of each step to the ceiling is different, it is sufficient to expand and contract it, so that it is not necessary to prepare columns having a plurality of lengths. As the stretchable structure, a structure in which a plurality of long members are nested, a structure in which a joint member is inserted between them, a structure having a spring mechanism inside, and a structure like a tension rod are possible.

Further, in the above embodiment, the stairs having a structure in which the tread is placed on the sasara girder have been described, but the stairs having other structures such as the side girder, the tread, and the stairs using the riser can also be applied.

1 Ceiling 2 Wall 3 Floor 4 Stairs 5 Stairs 6 Sasara girder 7 Screws 8 Screws 10 Stairs columns 11 Column body 12 Upper fixing member 13 Lower fixing member 20 Stairs handrail 30 Handrail support 40 Handrail support member

Claims (1)

At least one of the left side and the right side stands on the staircase stanchion erected between the open side end of the open staircase tread and the ceiling, and on the multiple steps downstairs of the staircase stanchion. It is a fixed structure with the staircase handrail installed on the upper part of the installed handrail support .
The staircase column has a column body, an upper fixing member for fixing the column body and the ceiling, and a lower fixing member for fixing the column body and the tread.
The staircase stanchion and the staircase handrail are characterized in that the upper floor end of the staircase handrail is fixed to the lowest of the staircase stanchions erected by being fixed to the ceiling and the tread. Fixed structure.

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