Wall-side structure for staircase and method for constructing wall-side structure for staircase

Abstract

To provide a wall-side structure for a staircase and a method for constructing the wall-side structure for the staircase that can suppress noise generated when going up and down the staircase while simplifying the configuration.SOLUTION: A building is provided with a staircase having a plurality of treads 11, a wall 20 provided on a side of a staircase, and a horizontal baseboard 21 attached to the wall 20 and disposed along an upper surface of the tread 11. An elastic adhesive portion 28 formed by an elastic adhesive 26 is interposed in a gap 24 between the tread 11 and the wall 20. The tread 11 and the wall 20 are bonded via the elastic adhesive portion 28.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a wall edge structure for a staircase and a method for constructing the wall edge structure. [Background technology]

[0002] Stairs are installed in buildings such as houses with multiple floors. The stairs have multiple treads and multiple risers. If a wall is provided on the side of the stairs, a stair baseboard is attached to the wall. Stair baseboards include horizontal baseboards that are installed along the top surface of the treads and vertical baseboards that are installed along the front surface of the risers.

[0003] However, when a step vibrates when going up or down stairs, the step may rub against the baseboard, generating noise. Patent Document 1 discloses a configuration in which an elastically deformable gap blocking member is provided in the gap between the baseboard and the step to suppress such noise. The gap blocking member is elongated along the gap and includes fin-shaped elastic pieces. The gap blocking member is attached by being fitted into a groove formed along the lower end surface of the baseboard. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5679156 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the configuration of Patent Document 1, the gap blockage member is formed to include a fin-shaped elastic piece, making the configuration of the gap blockage member complicated. Also, the baseboard needs to have a groove formed therein to fit the gap blockage member, which makes the baseboard configuration complicated.

[0006] The present invention has been made in consideration of the above-mentioned circumstances, and its main object is to provide a wall-edge structure for stairs and a method for constructing a wall-edge structure for stairs that can suppress noise when going up or down stairs while simplifying the configuration. [Means for solving the problem]

[0007] In order to solve the above problems, the wall-edge structure of a staircase of the first invention is applied to a building comprising a staircase with a plurality of treads, a wall section provided on the side of the staircase, and a staircase baseboard attached to the wall section and provided along the upper surface of the treads, and an elastic adhesive section formed from an elastic adhesive is interposed in the gap between the treads and the wall section, and the treads and the wall section are bonded via the elastic adhesive section.

[0008] According to the first invention, an elastic adhesive portion formed by an elastic adhesive is interposed in the gap between the staircase tread and the wall portion, and the tread and the wall portion are bonded via the elastic adhesive portion. With this configuration, if the tread vibrates when going up or down the stairs, it is possible to reduce (suppress) the displacement of the tread relative to the wall portion. This makes it possible to suppress the rubbing between the tread and the staircase baseboard attached to the wall portion. This makes it possible to suppress the generation of noise when going up or down the stairs. Also, since noise can be suppressed simply by interposing the elastic adhesive portion between the tread and the wall portion, it is possible to suppress noise with a simple configuration.

[0009] The wall edge structure of the staircase of the second invention is the same as that of the first invention, except that the elastic adhesive portion has a protruding portion that protrudes downward from the gap, and a part of the protruding portion is positioned on the underside of the tread and serves as a support portion that supports the tread from below.

[0010] According to the second aspect of the present invention, the elastic adhesive portion has a protruding portion that protrudes downward from the gap between the tread and the wall. A part of the protruding portion is disposed on the underside of the tread and serves as a support portion that supports the tread from below. With this configuration, when the tread vibrates when going up or down the stairs, the displacement of the tread relative to the wall can be further mitigated (suppressed). Therefore, the generation of noise can be further suppressed.

[0011] The wall-edge structure of a staircase of the third invention is the same as that of the first invention, wherein the staircase has a staircase base supporting the multiple treads, the staircase base having a support surface on which the treads are placed, the treads are adhered to the support surface via an adhesive layer formed from an elastic adhesive, and the elastic adhesive portion is formed using the same elastic adhesive as the elastic adhesive that forms the adhesive layer.

[0012] The tread may be fixed to the mounting surface of the staircase base via an adhesive layer formed of an elastic adhesive. Therefore, in the third invention, the elastic adhesive portion is formed using the same elastic adhesive as the elastic adhesive forming the adhesive layer. In this case, the elastic adhesive portion can be easily formed using the elastic adhesive for fixing the tread.

[0013] The wall-edge structure of a staircase of the fourth invention is any of the first to third inventions, in which the staircase has a staircase base supporting the multiple treads, and the staircase base is provided in an unfixed state relative to the wall portion.

[0014] In a staircase where the stair base supporting the treads is not fixed to the wall, the treads (and therefore the staircase) are likely to be displaced relative to the wall when ascending or descending the stairs, which is likely to cause noise. In this regard, the fourth invention applies the first invention to such a staircase structure, so even with such a configuration, it is possible to effectively suppress the generation of noise.

[0015] A method for constructing a wall-edge structure of a staircase of the fifth invention is a method for constructing a wall-edge structure of a staircase of the second invention, wherein the staircase has a staircase base supporting the plurality of treads, and the method comprises an adhesive application step of applying the elastic adhesive to a wall surface of the wall portion before installing the treads on the staircase base, a step installation step of installing the treads on the staircase base after the adhesive application step, thereby interposing the elastic adhesive between the treads and the wall portion, and an adhesive hardening step of hardening the elastic adhesive after the step installation step, to form the elastic adhesive portion, wherein in the adhesive application step, the elastic adhesive is applied so that the dimension of the elastic adhesive in the width direction of the gap is larger than the width of the gap, and in the step placement step, the step is installed while pushing a portion of the elastic adhesive downward with the underside of the step, thereby disposing a portion of the elastic adhesive on the underside of the step, and the portion disposed on the underside of the step becomes the support portion in the adhesive hardening step.

[0016] According to the fifth aspect of the invention, an elastic adhesive portion is formed in the gap between the wall portion and the step by carrying out an adhesive application step, a step installation step, and an adhesive hardening step. Specifically, in the adhesive application step, the elastic adhesive is applied so that the dimension of the elastic adhesive in the width direction of the gap is larger than the width of the gap. In addition, in the step installation step, the step is installed while the underside of the step is pushing a part of the elastic adhesive downward, so that a part of the elastic adhesive is disposed on the underside of the step. Then, in the adhesive hardening step, the part of the elastic adhesive disposed on the underside becomes a support part that supports the step from below. This makes it possible to suitably form an elastic adhesive portion having a support part. [Brief description of the drawings]

[0017] [Figure 1] FIG. [Diagram 2] Longitudinal section of the stairs. [Diagram 3] This is a vertical cross-sectional view showing the wall-edge structure of the stairs, and corresponds to the cross-sectional view along line AA in Figure 2. [Figure 4]Cross-sectional view of line BB in Figure 3. [Diagram 5] A diagram to explain the steps in constructing a wall-edge structure for a staircase. [Figure 6] A diagram to explain the steps in constructing a wall-edge structure for a staircase. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described with reference to the drawings. Fig. 1 is a perspective view showing the configuration of a staircase 10, and Fig. 2 is a vertical cross-sectional view of the staircase 10.

[0019] As shown in Figures 1 and 2, a building such as a house is provided with a staircase 10. The staircase 10 has a number of treads 11, a number of risers 12, and a staircase base 13 that supports each tread 11 from below. The treads 11 and risers 12 are made of wood and are formed into a rectangular plate shape.

[0020] The staircase base 13 has a pair of girder parts 14 extending in the direction in which the treads 11 are arranged, and a plurality of support frames 15 provided across the girder parts 14. Each girder part 14 is made of a long steel material and is disposed on both ends of the staircase 10 in the left-right direction (in other words, the width direction of the staircase 10). Each support frame 15 is made of a long steel material extending in the left-right direction and is fixed to each girder part 14. Each support frame 15 is provided for each tread 11 and has a mounting plate part 16 on which the tread 11 is placed. The upper surface 17 of the mounting plate part 16 (which is also the upper surface 17 of the support frame 15) is the mounting surface on which the tread 11 is placed. The tread 11 is fixed to the mounting plate part 16 while being placed on the upper surface 17 of the mounting plate part 16. Although not shown in the figure, the staircase base 13 is fixed to the building structure (beams, columns, etc.) via fixing brackets.

[0021] Walls 20 are provided on the sides of the stairs 10. The walls 20 are arranged on both the left and right sides of the stairs 10. Each wall 20 is constructed including a wall material made of gypsum board. In addition, the staircase base 13 of the stairs 10 (and therefore the stairs 10) is arranged separately from each wall 20 and is not fixed to each wall 20.

[0022] Long, plate-like staircase baseboards 21, 22 are attached to the wall portion 20. The staircase baseboards 21, 22 include a horizontal baseboard 21 provided along the top surface of the tread 11 and a vertical baseboard 22 provided along the front surface of the riser 12. The horizontal baseboard 21 corresponds to the "staircase baseboard" described in the claims.

[0023] Next, the wall edge structure of the stairs 10 will be described with reference to Fig. 3 and Fig. 4. Fig. 3 is a vertical cross-sectional view showing the wall edge structure of the stairs 10, and corresponds to the cross-sectional view taken along line AA in Fig. 2. Fig. 4 is a cross-sectional view taken along line BB in Fig. 3.

[0024] As shown in Figures 3 and 4, the footboard 11 is adhered and fixed to the upper surface 17 of the support frame 15 via an adhesive layer 25. The adhesive layer 25 is provided over substantially the entire area of ​​the upper surface 17 of the support frame 15. The adhesive layer 25 is formed of an elastic adhesive 26. The elastic adhesive 26 is, for example, a urethane resin-based elastic adhesive. However, the elastic adhesive 26 may be an elastic adhesive other than a urethane resin-based adhesive, such as a silicone resin-based or modified silicone resin-based elastic adhesive.

[0025] A part of the footboard 11 forms an extension 11a that extends in the longitudinal direction (left-right direction) beyond the end of the support frame 15. The extension 11a is spaced apart from the wall 20, and a predetermined gap 24 is formed between the extension 11a and the wall 20. The width W of this gap 24 is set to a predetermined size, for example, about 1 to 2 mm.

[0026] An elastic adhesive portion 28 formed by an elastic adhesive 26 is interposed in the gap 24 between the step plate 11 (extension portion 11a) and the wall portion 20. The elastic adhesive portion 28 is provided for each step plate 11. The step plate 11 and the wall portion 20 are bonded by this elastic adhesive portion 28. The elastic adhesive portion 28 is a rubber-like elastic body formed by solidifying the elastic adhesive 26. In this embodiment, the elastic adhesive portion 28 is formed using the same elastic adhesive 26 as the elastic adhesive 26 that forms the adhesive layer 25. Therefore, here, the elastic adhesive 26 that forms the elastic adhesive portion 28 and the elastic adhesive 26 that forms the adhesive layer 25 are given the same reference numeral "26".

[0027] The elastic adhesive portion 28 extends continuously along the front-to-rear direction of the tread 11 (in other words, the width direction of the tread 11). The front end of the elastic adhesive portion 28 is located rearward of the riser 12 disposed (connected) at the front end side of the tread 11. A part of the elastic adhesive portion 28 forms a protruding portion 29 that protrudes downward from the gap 24 between the tread 11 and the wall portion 20. The protruding portion 29 is provided over the entire length of the elastic adhesive portion 28.

[0028] A part of the protruding portion 29 is disposed on the underside of the extending portion 11a of the footboard 11, and serves as a support portion 31 that supports the extending portion 11a from below. The support portion 31 is bonded to the underside of the extending portion 11a. The support portion 31 (protruding portion 29) is spaced apart from the support frame 15.

[0029] Next, the procedure for constructing the wall-side structure of the above-mentioned staircase 10 will be described with reference to Figures 5 and 6. Figures 5 and 6 are diagrams for explaining the procedure for constructing the wall-side structure of the staircase 10. Note that it is assumed here that each wall portion 20 and the staircase base 13 of the staircase 10 have been installed in advance.

[0030] When constructing the stairs 10, the steps 11 and risers 12 are assembled in sequence to the staircase base 13. For example, they are assembled in sequence from the top to the bottom of the stairs. Hereinafter, the procedure for assembling the steps 11 to the staircase base 13 will be described in detail.

[0031] First, as shown in Fig. 5(a), the step 11 is temporarily placed on the upper surface 17 of the support frame 15 of the staircase base 13, and in this temporarily placed state, a line drawing process is performed in which a line is drawn along the upper surface of the step 11 on the wall surface 20a of the wall section 20. In the line drawing process, a line is drawn using a line drawing tool S such as a pencil. Specifically, in this process, a line is drawn at the same height as the upper surface of the step 11. After the line drawing process, the step 11 is removed from the upper surface 17 of the support frame 15. Note that Fig. 5(b) shows the line drawing position E.

[0032] 5(b), a first adhesive application step is performed in which an elastic adhesive 26 (hereinafter referred to as elastic adhesive 26a) is applied to the wall surface 20a of the wall section 20. In this step, the elastic adhesive 26a is applied to an area K of the wall surface 20a that faces the step plate 11 (more specifically, an end surface of the step plate 11) in a state in which the step plate 11 is placed on the upper surface 17 of the support frame 15. In this case, the elastic adhesive 26a is applied along the front-rear direction of the area K, more specifically, applied over substantially the entire area of ​​the area K in the front-rear direction. The first adhesive application step corresponds to the adhesive application step.

[0033] In the first adhesive application step, the elastic adhesive 26a is applied to the wall surface 20a so as not to extend above the line drawing position E (i.e., the upper surface position of the step board 11) drawn in the line drawing step. More specifically, the elastic adhesive 26a is applied so that the upper end of the elastic adhesive 26a is positioned below the line drawing position E.

[0034] In the first adhesive application step, the elastic adhesive 26a is applied to the wall surface 20a so that the dimension D of the elastic adhesive 26a in the width direction of the gap 24 is larger than the width W (see FIG. 3) of the gap 24 between the footboard 11 and the wall 20 (D>W). More specifically, the elastic adhesive 26a is applied so that the dimension D of the elastic adhesive 26a is at least twice the width W of the gap 24. In addition, the dimension D of the elastic adhesive 26a is smaller than the distance L between the wall 20 and the support frame 15 (upper surface 17).

[0035] Next, a second adhesive application step is performed in which an elastic adhesive 26 (hereinafter referred to as elastic adhesive 26b) is applied to the upper surface 17 of the support frame 15. In this step, application is performed using the same elastic adhesive 26b as the elastic adhesive 26a used in the first adhesive application step. In this step, the elastic adhesive 26b may be applied to the lower surface of the footboard 11 instead of or in addition to the upper surface 17 of the support frame 15. The second adhesive application step may be performed after the first adhesive application step or may be performed before the first adhesive application step. In addition, the second adhesive application step may be performed in parallel with the first adhesive application step.

[0036] 6, a step installation process is performed in which the step 11 is installed on the upper surface 17 of the support frame 15. This process interposes an elastic adhesive 26b between the step 11 and the upper surface 17 of the support frame 15, and an elastic adhesive 26a in the gap 24 between the step 11 and the wall 20. In addition, in the step installation process, when the step 11 is installed on the upper surface 17 of the support frame 15, part of the elastic adhesive 26a applied to the wall surface 20a is pushed downward by the underside of the step 11 while the step is installed. As a result, part of the elastic adhesive 26a protrudes downward from the gap 24, and the protruding part is disposed on the underside of the step 11.

[0037] Next, an adhesive solidification process is performed in which the elastic adhesive 26a is solidified to form the elastic adhesive portion 28. Through this process, the footboard 11 and the wall portion 20 are bonded via the elastic adhesive portion 28 (see FIG. 3). Furthermore, in this process, a portion of the elastic adhesive 26a disposed on the underside of the footboard 11 becomes the support portion 31.

[0038] In the adhesive hardening step, the elastic adhesive 26b is hardened to form an adhesive layer 25. As a result, the footboard 11 is adhesively fixed to the upper surface 17 of the support frame 15 via the adhesive layer 25.

[0039] This concludes the explanation of the procedure for assembling the treads 11. After assembling each tread 11 and riser 12 to the staircase base 13, the baseboard attachment process is carried out to attach the horizontal baseboard 21 and the vertical baseboard 22 to the wall surface 20a of the wall section 20. In this process, the horizontal baseboard 21 and the vertical baseboard 22 are attached to the wall section 20 in sequence using adhesive or the like. With the above steps, the wall edge structure of the staircase 10 is constructed, and a series of operations is completed.

[0040] According to the configuration of this embodiment described in detail above, the following excellent effects can be obtained.

[0041] An elastic adhesive portion 28 formed by an elastic adhesive 26 is interposed in the gap 24 between the tread 11 and the wall 20 of the staircase 10, and the tread 11 and the wall 20 are bonded via the elastic adhesive portion 28. In this configuration, when the tread 11 vibrates when going up or down the staircase 10, the displacement of the tread 11 relative to the wall 20 can be mitigated (suppressed). Therefore, the friction between the tread 11 and the baseboard 21 attached to the wall 20 can be suppressed. This makes it possible to suppress the generation of noise when going up or down the staircase 10. Also, since the noise can be suppressed by simply interposing the elastic adhesive portion 28 between the tread 11 and the wall 20, the noise can be suppressed with a simple configuration.

[0042] In addition, by providing the elastic adhesive portion 28 in the gap 24 between the step board 11 and the wall portion 20, it is possible to reliably prevent the step board 11 and the wall portion 20 from rubbing against each other. Therefore, it is possible to reliably prevent the generation of noise caused by the rubbing between the step board 11 and the wall portion 20.

[0043] The elastic adhesive portion 28 has a protruding portion 29 that protrudes downward from the gap 24 between the tread 11 and the wall portion 20. A part of the protruding portion 29 is disposed on the underside of the tread 11 and serves as a support portion 31 that supports the tread 11 from below. With this configuration, when the tread 11 vibrates when going up or down the stairs 10, the displacement of the tread 11 relative to the wall portion 20 can be further mitigated (suppressed). Therefore, the generation of noise can be further suppressed.

[0044] The tread 11 is adhered and fixed to the upper surface 17 of the support frame 15 of the staircase base 13 via an adhesive layer 25 formed of an elastic adhesive 26. In the above embodiment, the elastic adhesive portion 28 is formed using the same elastic adhesive 26 as the elastic adhesive 26 that forms the adhesive layer 25. In this case, the elastic adhesive portion 28 can be easily formed using the elastic adhesive 26 used to fix the tread 11.

[0045] In particular, since both the elastic adhesive 26 forming the adhesive layer 25 and the elastic adhesive 26 forming the elastic adhesive portion 28 are applied immediately before the footboard 11 is placed on the upper surface 17 of the support frame 15, it can be said that it is particularly convenient from the viewpoint of work to use the same elastic adhesive 26 for these.

[0046] In a staircase 10 in which the staircase base 13 supporting the treads 11 is not fixed to the wall 20, the treads 11 (and therefore the staircase 10) are likely to be displaced relative to the wall 20 when ascending or descending the staircase 10, which is likely to cause noise. In this regard, in the above embodiment, the present invention using the elastic adhesive part 28 is applied to such a staircase 10, so that even with such a configuration, the generation of noise can be suitably suppressed.

[0047] In the first adhesive application process, the elastic adhesive 26 is applied so that the dimension of the elastic adhesive 26 in the width direction of the gap 24 is larger than the width of the gap 24. In the step installation process, the step 11 is installed while the underside of the step 11 pushes part of the elastic adhesive 26 downward, so that part of the elastic adhesive 26 is disposed on the underside of the step 11. Then, in the adhesive hardening process, the part of the elastic adhesive 26 disposed on the underside becomes the support part 31 that supports the step 11 from below. This makes it possible to suitably form the elastic adhesive part 28 having the support part 31.

[0048] In a state where the step 11 is temporarily placed on the upper surface 17 of the support frame 15, a line drawing step is performed in which a line is drawn along the upper surface of the step 11 on the wall surface 20a of the wall portion 20. Then, the temporarily placed step 11 is removed from the upper surface 17 of the support frame 15, and then a first adhesive application step is performed. In this application step, the elastic adhesive 26 is applied to the wall surface 20a so that the elastic adhesive 26 does not exceed the line drawing position E upward. This makes it possible to prevent the elastic adhesive 26 from overflowing upward from the gap 24 between the step 11 and the wall portion 20 during the subsequent step installation step. Therefore, it is possible to prevent the overflowing elastic adhesive 26 (and thus the elastic adhesive portion 28) from impairing the appearance of the staircase wall edge.

[0049] The present invention is not limited to the above embodiment, and may be implemented, for example, as follows.

[0050] The elastic adhesive portion 28 may be interposed in the gap 24 between the footboard 11 and the wall portion 20 so that the entire elastic adhesive portion 28 is located in the gap 24. In this case, the elastic adhesive portion 28 does not have a protruding portion 29.

[0051] In the above embodiment, when the elastic adhesive 26 is interposed in the gap 24 between the step plate 11 and the wall portion 20, the elastic adhesive 26 is first applied to the wall portion 20, and then the step plate 11 is placed on the upper surface 17 of the support frame 15, so that the elastic adhesive 26 is interposed in the gap 24. However, the method of interposing the elastic adhesive 26 in the gap 24 is not necessarily limited to this. For example, the elastic adhesive 26 may be first applied to the step plate 11 (more specifically, the end surface of the step plate 11 on the wall portion 20 side), and then the step plate 11 may be placed on the upper surface 17 of the support frame 15, so that the elastic adhesive 26 is interposed in the gap 24. Alternatively, the step plate 11 may be first placed on the upper surface 17 of the support frame 15, and then the elastic adhesive 26 may be injected into the gap 24 between the step plate 11 and the wall portion 20, so that the elastic adhesive 26 is interposed in the gap 24.

[0052] In the above embodiment, the present invention is applied to a staircase 10 in which the staircase base 13 is not fixed to the wall portion 20, but the present invention may also be applied to a staircase in which the staircase base is fixed to the wall portion 20. [Explanation of symbols]

[0053] 10...staircase, 11...tread, 13...staircase base, 17...upper surface as support surface, 20...wall portion, 21...horizontal baseboard as staircase baseboard, 24...gap, 25...adhesive layer, 26...elastic adhesive, 28...elastic adhesive portion, 29...protruding portion, 31...support portion.

Claims

1. A staircase having a plurality of treads; A wall portion provided on a side of the staircase; The present invention is applied to a building including a staircase baseboard attached to the wall and provided along the upper surface of the tread, In this wall-edge structure for stairs, an elastic adhesive portion formed by an elastic adhesive is interposed in the gap between the step and the wall portion, and the step and the wall portion are adhered via the elastic adhesive portion.

2. The elastic adhesive portion has a protruding portion protruding downward from the gap, 2. The wall edge structure of claim 1, wherein a part of the protruding portion is disposed on the underside of the tread and serves as a support portion that supports the tread from below.

3. The staircase includes a staircase base supporting the plurality of treads; The staircase base has a support surface on which the tread is placed, The footboard is bonded to the placement surface via an adhesive layer formed of an elastic adhesive; The wall edge structure of the staircase according to claim 1 , wherein the elastic adhesive portion is formed using the same elastic adhesive as that forming the adhesive layer.

4. The staircase includes a staircase base supporting the plurality of treads; The wall edge structure of a staircase according to claim 1 , wherein the staircase base is provided in an unfixed state relative to the wall portion.

5. A method for constructing a wall structure of a staircase according to claim 2, comprising the steps of: The staircase includes a staircase base supporting the plurality of treads; an adhesive application step of applying the elastic adhesive to a wall surface of the wall portion before the step board is installed on the staircase base; a step installation step of installing the step on the staircase base after the adhesive application step, so that the elastic adhesive is interposed between the step and the wall portion; and an adhesive solidification step of forming the elastic adhesive portion by solidifying the elastic adhesive after the step of installing the footboard. In the adhesive application step, the elastic adhesive is applied so that a dimension of the elastic adhesive in a width direction of the gap is larger than a width of the gap, In the step of installing the step plate, the step plate is installed while pushing a portion of the elastic adhesive downward with the underside of the step plate, so that a portion of the elastic adhesive is disposed on the underside of the step plate; A method for constructing a staircase wall structure, in which the adhesive solidifying process serves to make the portion arranged on the underside of the tread into the support portion.

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