JPH07317264A - Structure and method for attaching handrail - Google Patents

Abstract

PURPOSE:To prevent external appearances from being spoiled extremely with a furring reinforcing material kept from becoming obstructive by a method wherein the furring reinforcing material is provided between a first walling material and a second walling material, and a bracket receiving seat on the surface of the first walling material and the furring reinforcing material are fixed, with the first walling material put in between. CONSTITUTION:An attaching hole 5 is bored to a position whereto a handrail is installed to a first walling material 1. A cylindrical body 3, with adhesives applied to both ends 31 thereof, is inserted, being folded up, through the attaching hole 5 to a space between the first walling material 1 and a second walling material 2, and after that the cylindrical body is unfolded to its original size and stuck to the walling materials. Then, reactive setting resin is injected into the cylindrical body 3, and thereby furring reinforcing material 4 is formed. A screw 7 is inserted through a through hole 61 and the attaching hole 5 and screwed down into the furring reinforcing material 4, and the first walling material 1 is fixed form both sides with a bracket receiving seat 6 and the furring reinforcing material 4. Then, a bracket cover 10 of a handrail 9 is made to contact with the bracket receiving seat 6 and fixed to the furring reinforcing material 4 with the screw 7. Thereby, the external apperances are not spoiled while the furring reinforcing material is kept from becoming obstructive.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handrail mounting structure and a handrail mounting method. In particular, the present invention relates to a handrail mounting structure and a handrail mounting method suitable for mounting a handrail on a wall of a general existing living room, a wall of an existing corridor, or a wall of an existing bathroom unit in which a bathroom unit is mounted in a small room.

[0002]

2. Description of the Related Art Conventionally, in a bathroom, a bathtub is installed in a small room to provide a bathroom floor, a wall, etc., but recently, as described in Japanese Utility Model Publication No. 1-16474, a bathtub, a bathroom floor, and a wall are provided. It is widely practiced to manufacture a bathroom unit consisting of etc. at a factory, transport it to the construction site, assemble this bathroom unit in a small room, and install it in the actual construction because the construction period is short and the construction period is short. However, in recent years, the number of elderly people has increased, and it has become more frequent to refurbish each facility in the house for the elderly people. When renovating a bathroom, it is often slippery, so handrails are often attached to the sidewalls for the safety of the elderly. When installing a new bathroom unit, the handrail installation method for attaching handrails to this bathroom unit is to attach plywood, wood chips, iron material, etc. to the back surface of the bathroom unit side wall installation scheduled position before installing the bathroom unit. The members were joined to reinforce the wall, and the handrail was attached to the attachment member from the side wall surface of the bathroom unit. On the other hand, in the existing case, since it is not possible to join the attachment member to the back surface of the wall at the handrail attachment position, it was actually difficult to attach the handrail. If you want to install the handrail without stopping,
The handrail was attached by attaching a reinforcing material to the position where the handrail was to be attached on the surface of the wall of the bathroom unit.

[0003]

However, as described above, in the method of attaching the reinforcing material to the surface of the wall of the bathroom unit and attaching the handrail, the reinforcing material is visible on the surface of the wall and the appearance of the bathroom unit is significantly impaired. At the same time, the reinforcing material projects from the surface, which causes an obstacle.
Providing the handrail to the existing wall in this manner is not limited to the bathroom unit, and in other cases, for example, when the handrail is attached to the existing toilet or the like, the same problem occurs.

Therefore, an object of the present invention is to provide a handrail mounting structure and a handrail mounting construction method in which a handrail is not significantly impaired when a handrail is provided on an existing wall such as a bathroom unit and the reinforcing material does not disturb the handrail. Is.

[0005]

The present invention has been made to achieve the above object, and the handrail mounting structure of the present invention according to claim 1 has a first wall member and a second wall member. Is a handrail mounting structure in which a handrail is attached to the surface of the first wall material of the wall provided at a constant interval, and the reactive hardening type solidified between the first wall material and the second wall material. A base reinforcing material made of resin or mortar is provided, a bracket seat is provided on the surface of the first wall material, and the bracket seat and the base reinforcing material are fixed by screws with the first wall material sandwiched therebetween, and the bracket A handrail is attached to the seat.

The present invention according to claim 2 is a preferred handrail mounting method for obtaining the handrail mounting structure according to claim 1,
A handrail mounting method for mounting a handrail on a surface of a first wall material of a wall in which a first wall material and a second wall material are provided with a constant space, and a mounting hole is provided by drilling a mounting hole in the first wall material. , A tubular member made of a flexible material or a mounting member having a U-shaped cross section is deformed and inserted between the first wall member and the second wall member through the mounting hole, and the mounting member is attached to the first wall member. Between the second wall material and the second wall material, and after adhering both ends to the first wall material and the second wall material, respectively, a reactive curable resin or mortar is injected into the mounting member to solidify, Form a base reinforcement larger than the mounting hole,
The bracket seat is brought into contact with the surface of the first wall material, and the bracket seat is attached to the first wall material by screwing a screw into the base reinforcing material from above the bracket seat, and the handrail is attached to the bracket seat. Is to be attached.

In the handrail mounting structure of the present invention as set forth in claim 3, the handrail is mounted on the surface of the first wall material of the wall in which the first wall material and the second wall material are provided at a constant interval. In the handrail mounting structure, a mounting hole is provided in the first wall member, the mounting member is inserted into the mounting hole, and the tip of the mounting member and the inner surface of the second wall member are The edge surface and the peripheral side surface of the mounting member are attached by being adhered to each other, the bracket seat is attached to the end surface of the mounting member on the first wall material side through the decorative plate, and the handrail is attached to the bracket seat. It is what

The present invention according to claim 4 is a preferred handrail mounting method for obtaining the handrail mounting structure according to claim 3.
A handrail mounting method for mounting a handrail on a surface of a first wall material of a wall in which a first wall material and a second wall material are provided with a constant space, and a mounting hole is provided by drilling a mounting hole in the first wall material. The mounting member is inserted between the first wall member and the second wall member through the mounting hole, the tip of the mounting member is mounted on the inner surface of the second wall member, and the peripheral side surface of the mounting member is mounted on the first wall member. Adhere to the edge surfaces of the holes respectively, cover the end surface of the mounting member on the first wall material side with a decorative plate, abut the bracket seat on this decorative plate, and screw the screw into the mounting member from above the bracket seat. Then, the bracket seat is attached to the mounting member, and the handrail is attached to the bracket seat.

In the present invention, the first wall material is a wall material to which the handrail is attached, and the second wall material is a wall material provided on the back side of the first wall material at a constant interval. For example, in the case of a living room, the first wall material is the wall of the living room, and the second wall material is the wall of the corridor or the living room next to the living room. Further, in the case of a corridor, the first wall material is the wall of the corridor, and the second wall material is the wall of the next room or the like. Further, in the case of a small room to which the bathroom unit is attached, the first wall material is the wall of the bathroom unit and the second wall material is the wall of the small room.

[0010]

According to the first aspect of the present invention, the base reinforcing material made of the solidified reactive curable resin or mortar is provided between the first wall material and the second wall material. Since the bracket seats are attached with screws with the wall material sandwiched therebetween, the bracket seats are firmly attached to the first wall material. Moreover, since the handrail is attached to the bracket seat, the handrail is firmly attached to the first wall member.

According to the second aspect of the invention, since the tubular or U-shaped mounting member is made of a flexible material, the mounting member is perforated in the first wall member by folding and deforming the mounting member. The hole can be inserted between the first wall material and the second wall material. Therefore, the mounting hole formed in the first wall member can be a small hole instead of the same size as the diameter of the cylindrical body as the mounting member or the width and height of the U-shaped band. . Since the mounting hole can be made small in this way, the appearance is not very noticeable and the aesthetic appearance is good. Furthermore,
In this way, by injecting the reactive curable resin or mortar into the mounting member inserted between the first wall material and the second wall material through the mounting hole and solidifying the resin, the mounting hole can be easily removed from the mounting hole. A large base reinforcing material can be formed. As a result, the base reinforcing material does not come out of the mounting hole of the first wall material. When the bracket seat is brought into contact with the surface of this first wall material and the bracket seat is attached by screwing a screw into the base reinforcing material from above the bracket seat, the bracket seat is firmly attached to the first wall material. It is attached. When the handrail is attached to the bracket seat, the handrail can be firmly attached to the wall.

According to the third aspect of the present invention, the mounting member is inserted into the mounting hole provided in the first wall member, and the tip of the mounting member and the inner surface of the second wall member are arranged at the edge of the mounting hole. Since the end portion and the peripheral side surface of the mounting member are bonded and mounted, the mounting member does not come off. Since the handrail is attached to the attachment member, the handrail attachment structure including the first wall material, the second wall material, and the attachment member is firmly attached to the handrail, and the load and moment required for holding the handrail are increased. Can withstand enough.

In the invention of claim 4, the mounting member is inserted between the first wall member and the second wall member through the mounting hole formed in the first wall member, and the tip of the mounting member is attached to the second wall member. On the inner surface of the material,
Since the peripheral side surface of the mounting member is bonded to the edge surface of the mounting hole of the first wall member, the first wall member and the second wall member are joined via the mounting member. Further, the attachment member is firmly attached to the first wall material and the second wall material without coming off from the attachment hole of the first wall material. Since the bracket seat is attached to this mounting member, the bracket seat can be firmly attached to the wall. Then, since the handrail is attached to the bracket seat, the handrail is firmly attached to the wall. Therefore,
Unlike the conventional case, it is not necessary to provide a reinforcing material on the surface, and the reinforcing material does not interfere. Further, since the end face of the mounting member on the first wall material side is covered with the decorative plate, and the bracket seat is attached to the decorative plate so as to be mounted on the mounting member, the mounting member cannot be seen from the first wall member side, and the bathroom unit Does not significantly impair the appearance.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show an embodiment in which the present invention is applied to a bathroom unit. FIG. 1 is a sectional view showing a state in which a bracket seat is attached, and FIG.
FIG. 4 is an explanatory view showing a state in which a bracket seat and the like are attached to a base reinforcing material, FIG. 3 is an explanatory view showing a state in which a handrail is attached to the bracket seat, and FIG. is there.

1 to 4, reference numeral 1 is a first wall member composed of a wall of a bathroom unit. The first wall member 1 is made of vinyl chloride resin-coated steel plate 11 on the inside and gypsum board 12 on the outside. The first wall material may be a material that is usually used for the wall of the bathroom unit, for example, a tile instead of the vinyl chloride resin-coated steel plate 11 on the inside. Further, a calcium silicate plate may be used instead of the outer plaster board 12. Further, an aluminum plate or a fiber reinforced resin (FRP) plate may be used in combination with the inside and the outside. Reference numeral 2 is a second wall material composed of the wall of the small room. The second wall member 2 includes a wooden board 22 attached to the indoor side of the iron crosspiece 21 and a concrete board 23 on the outdoor side. The second wall material may be a material normally used for the wall of the bathroom unit, for example, a wooden beam instead of the iron beam 21, or a cement board instead of the concrete plate 23. 3 is a tubular body made of a flexible material (for example, soft vinyl chloride resin) and having a circular cross section. Both end portions 31, 31 of the tubular body 3 are formed on the first wall material 1 and the second wall material 2, respectively. It is glued. In this embodiment, the tubular body 3 made of a flexible material is used, but the tubular body 3 may be replaced by a band body having a U-shaped cross section. 4 is a cylindrical base reinforcement made of solidified reactive curable resin (for example, epoxy resin, unsaturated polyester resin, phenol resin, urea resin, etc., or glass resin or filler added to these resins) The base reinforcement material 4 is a material, and the tubular body 3 is inserted and arranged between the first wall material 1 and the second wall material 2.
It is filled and provided inside. Incidentally, mortar may be used instead of the reactive curable resin. Reference numeral 5 denotes a circular mounting hole drilled in the first wall member 1.
The hole diameter is about 1/3 of the outer diameter of the base reinforcing material 4. Reference numeral 6 denotes a bracket seat, which is a disk-shaped member having a through hole 61 in the center and a screw 62 on the outer peripheral surface. The bracket seat 6 is attached to the base reinforcing member 4 by a screw screw 7 which is passed through the through hole 61 and the attaching hole 5 of the first wall member 1. Reference numeral 9 is a handrail, and 10 is a bracket cover. The bracket cover 10 is rotatably locked to the tip of the handrail 9. Further, the inner peripheral surface of the bracket cover 10 is provided with a screw to be screwed into the screw 62 of the bracket seat 6. Therefore, the handrail 9 can be attached to the first wall member 1 by screwing the bracket cover 10 provided at the tip of the handrail 9 into the bracket seat 6 to attach it.

Next, the handrail mounting method of the embodiment shown in FIGS. 1 to 4 will be described. First, the mounting hole 5 is drilled at the planned handrail mounting position of the first wall member 1. Next, the tubular body 3 made of a flexible material is provided between the first wall material 1 and the second wall material 2 through the mounting hole 5.
An adhesive agent is attached to both ends 31, 31, and the sheet is folded, deformed, and inserted. After insertion, expand the tubular body 3 to its original size,
Both ends 31, 31 of the tubular body 3 are adhered to the first wall material 1 and the second wall material 2, respectively.

Next, a reactive curable resin (eg, epoxy resin) is injected into the cylindrical body 3 and solidified to form the base reinforcing material 4. Next, as shown in FIG. 2, the screw screw 7 is passed through the through hole 61 of the bracket seat 6 and the mounting hole 5 and screwed into the base reinforcing member 4. Then, the bracket seat 6 and the base reinforcing member 4 are fixed with the first wall member 1 interposed therebetween. Next, as shown in FIG. 3, the bracket cover 10 rotatably locked to the tip of the handrail 9 is brought into contact with the bracket seat 6, and the bracket cover 10 is rotated to move the bracket cover 10
4 is screwed into the screw 62 of the bracket seat 6, and the handrail 9 is attached to the first wall member 1 as shown in FIG. By doing so, the base reinforcing material 4 is firmly attached to the first wall material 1 without coming off from the attachment hole 5 of the first wall material 1. Further, since the bracket seat 6 is brought into contact with the surface of the first wall member 1 and the bracket seat 6 is firmly fixed to the base reinforcing member 4 by the screw screw 7, the bracket seat 6 is also firmly fixed. 4, and the bracket seat 6 is also firmly attached to the first wall member 1. When the handrail 9 is attached to the bracket seat 6 via the bracket cover 10, the handrail 9 is firmly attached to the first wall member 1.

Next, another embodiment of the present invention shown in FIGS. 5 to 6 will be described. FIG. 5 is a cross-sectional view showing a handrail mounting structure, and FIG. 6 is an explanatory view showing a state where a bracket screw and the like are mounted on a base reinforcing member by screwing in a screw. In the figure, 1a is a first wall member composed of a wall of the bathroom unit. The first wall member 1a is made of vinyl chloride resin-coated steel plate 11a on the inside and gypsum board 12a on the outside. The first wall material 1a is a material normally used for walls of bathroom units, for example, a tile is used instead of the vinyl chloride resin-coated steel plate 11a on the inside, and calcium silicate is used instead of the gypsum board 12a on the outside. It may be a plate. Furthermore, aluminum plate or fiber reinforced resin (FRP) is used to match the inside and outside
It may be a plate. 2a is a second wall material composed of the wall of the small room. The second wall member 2a is provided with a wooden board 22a on the indoor side of the iron crosspiece 21a and a concrete board 23a on the outdoor side. The second wall member 2a may be a material normally used for the wall of the bathroom unit, for example, a wooden beam instead of the iron beam 21a, or a cement board instead of the concrete plate 23a. 4a is a cylindrical mounting member, and is provided between the first wall member 1a and the second wall member 2a. Specifically, the mounting member 4a is a short pipe made of a hard vinyl chloride resin having an outer diameter of 75 mm and a wall thickness of 5.5 mm, and wooden lids 41a and 42a are provided inside both ends of the short pipe. Adhered and fixed. The lid 41a has an outer diameter of 63 mm and a length of 70 mm, and the lid 42a has an outer diameter of 63 mm and a length of 10 mm.
Is. As is clear from the figure, a screw hole 45a having a diameter smaller than that of a screw screw 7a described later is provided substantially at the center of the lid 41a. Reference numeral 5a is a mounting hole formed in the first wall member 1a, and the mounting hole 5a is a hole having substantially the same size as the outer diameter of the mounting member 4a. Reference numeral 6a denotes a bracket seat, which is a disk-shaped member having a through hole 61a at the center and a screw 62a on the outer peripheral surface. Reference numeral 8 denotes a disk-shaped decorative plate, which is provided with a through hole 81a at its center and is attached so as to cover the end surface of the attachment member 4a on the first wall material side. These bracket seats 6a and the decorative plate 8 are provided with respective through holes 61a.
Also, it is attached to the attachment member 4a by a screw screw 7a which is passed through the through hole 81a. 9a is a handrail and 10a is a bracket cover. The bracket cover 10a is rotatably locked to the tip of the handrail 9a, and a screw that is screwed into the screw 62a of the bracket seat 6a is provided on the inner peripheral surface of the bracket cover 10a. Therefore,
Bracket cover 10a provided at the tip of the handrail 9a
The handrail 9a can be attached to the first wall member 1a by screwing and attaching it to the bracket seat 6a.

Next, a handrail mounting method according to another embodiment of FIGS. 5 to 6 will be described. First, the mounting hole 5a is drilled at the planned handrail mounting position of the first wall member 1a. Next, on the entire front end of the lid 42a side of the mounting member 4a made of a short pipe made of a hard vinyl chloride resin having the wooden lids 41a and 42a mounted inside the both ends and on the peripheral side surface opposite to the mounting member 4a. Apply the two-component urethane adhesive, and from the mounting hole 5a, the first wall material 1a
The mounting member 4a is inserted between the second wall member 2a and the second wall member 2a, and the tip of the mounting member 4a (on the side of the lid 42a) is attached to the inner surface of the second wall member 2a.
The peripheral side surface of the mounting member 4a is bonded to the peripheral end surface of the mounting hole of the first wall member 1a. In this way, the attachment member 4a is firmly fixed by adhering the attachment member 4a to the second wall member 2a and the first wall member 1a. Next, after curing and curing for a predetermined time (for example, 24 hours), the end surface of the mounting member 4a on the side of the first wall 1a is covered with a decorative plate 8, and as shown in FIG. 6, a screw screw 7a having a screw diameter of 8 mm and a length of 50 mm. Through the through hole 61a of the bracket seat 6a and the through hole 81a of the decorative plate 8 and screwed into the screw hole 45a of the lid 41a of the mounting member 4a. Then, the bracket seat 6a, the decorative plate 8, and the mounting member 4a are fixed with the first wall member 1a interposed therebetween. Next, as shown in FIG. 3, the bracket cover 10a rotatably locked to the tip of the handrail 9a is brought into contact with the bracket seat 6a, and the bracket cover 10a is rotated so that the screws of the bracket cover 10a are received. The handrail 9a having an outer diameter of 28 mm and a span of 400 mm is screwed into the screw 62a of the seat 6a and attached to the first wall member 1a. In order to confirm whether the mounting member 4a is firmly attached to support the handrail 9a, the handrail 9 attached via the bracket seat 6a is checked.
A load of 75 kg is applied to a in the horizontal and vertical directions,
Repeated static load was applied 10 times. As a result of examining the first wall material 1a, the second wall material 2a and other parts, no damage was observed.

The embodiments of the present invention have been described in detail above with reference to the drawings. However, the specific structure is not limited to the above embodiments, and there may be design changes and the like within the scope not departing from the gist of the present invention. Included in the present invention. For example, the mounting member 4a
The material is not limited to the short pipe made of the hard vinyl chloride resin of the embodiment, and may be a hollow paper pipe, a wooden pipe, a short pipe made of a resin other than the hard vinyl chloride resin, or a metal pipe. Further, the mounting member 4a is not limited to the hollow member of the embodiment, but may be a solid member. Further, the shape of the tubular body may be a square shape as well as a circular shape.

[0021]

As described above, according to the first aspect of the invention, the base reinforcing material is provided between the first wall material and the second wall material, and the base reinforcing material is attached to the first wall material. Since the bracket seat is attached with a screw across the bracket seat, the bracket seat is firmly attached to the first wall member. Further, since the handrail is attached to the bracket seat, the handrail is firmly attached to the first wall member.

According to the second aspect of the present invention, since the tubular or U-shaped mounting member to be inserted from the mounting hole formed in the first wall member is made of a flexible material, this mounting member is used. It can be folded, deformed and inserted through the mounting hole. Therefore, the mounting hole to be drilled in the first wall member may be smaller than the diameter of the tubular body or the U-shaped band in cross section, or the width and height of the U-shaped band. Not very noticeable.

Further, after the mounting member is deformed and inserted between the first wall member and the second wall member, the mounting member is returned to the state before the deformation, and the reactive hardening resin or mortar is put in the mounting member. By injecting and solidifying, a base reinforcing material that is larger and stronger than the mounting hole can be formed. Since the base reinforcing material can be made larger than the mounting hole, it does not come out of the mounting hole formed in the first wall member. Further, when the bracket wall is attached with screws by sandwiching the first wall member in the base reinforcing material, the bracket wall is firmly attached. Therefore, by attaching the handrail to the bracket seat, the handrail is firmly attached to the first wall member.

According to the third aspect of the invention, a mounting member is inserted between the first wall member and the second wall member, the tip of the mounting member is bonded to the second wall member, and the mounting member is Since the peripheral side surface is bonded to the edge surface of the mounting hole provided in the first wall member, the mounting member is firmly fixed to the first wall member and the second wall member. Since the bracket seat is attached to this mounting member with a screw, the bracket seat is firmly attached to the first wall member. Further, since the handrail is attached to the bracket seat, the handrail is firmly attached to the first wall member. Further, since the end surface of the attachment member on the first wall member side is covered with the decorative plate, the appearance of the bathroom unit is not spoiled.

According to the invention of claim 4, the mounting member is inserted between the first wall member and the second wall member through the mounting hole formed in the first wall member, and the tip of the mounting member is the second wall member. On the inner surface, and the peripheral side surface of the mounting member on the edge surface of the mounting hole provided in the first wall member,
Since they are adhered to each other, this mounting member does not come off from the mounting hole formed in the first wall member. Therefore, when the bracket seat is attached to the mounting member with the screw, the bracket seat is firmly attached. Therefore, by attaching the handrail to the bracket seat, the handrail is firmly attached to the first wall member.

In the present invention, since both the base reinforcing material and the mounting member are provided between the first wall material and the second wall material, the appearance is not spoiled and the reinforcing material does not interfere. .

[Brief description of drawings]

FIG. 1 shows an embodiment in which the present invention is applied to a bathroom unit, and is a cross-sectional view showing a state in which a bracket seat is attached.

FIG. 2 is an explanatory view showing a state where a bracket seat and the like are attached to a base reinforcing material.

FIG. 3 is an explanatory view showing a state where a handrail is attached to a bracket seat.

FIG. 4 is an explanatory view showing a state where handrails are attached to the wall surface of the bathroom unit.

FIG. 5 shows another embodiment of the present invention and is a cross-sectional view showing a handrail mounting structure.

FIG. 6 is an explanatory view showing a state where a bracket seat and the like are attached to a base reinforcing material.

[Explanation of symbols]

1, 1a First wall material 2, 2a Second wall material 3 Cylindrical body made of flexible material 4 Base reinforcing material 4a Mounting member (short pipe made of hard vinyl chloride resin) 41a, 42a Lid body 5, 5a Mounting hole 6 , 6a Bracket seat 61 Through hole 62 Bracket seat screw 7, 7a Screw 9, 9a Handrail 10, 10a Bracket cover

Claims (4)

[Claims] 1. A handrail mounting structure in which a handrail is attached to a surface of a first wall material of a wall in which a first wall material and a second wall material are provided at a constant interval, Between the second wall material, a base reinforcing material made of a solidified reactive curable resin or mortar is provided, and a bracket seat is provided on the surface of the first wall material. The handrail mounting structure is characterized in that the first wall member is fixed to the bracket with screws, and the handrail is attached to the bracket seat. 2. A handrail mounting method for mounting a handrail on the surface of a first wall material of a wall in which a first wall material and a second wall material are provided with a constant interval, and a mounting hole in the first wall material. Is provided by punching, and a tubular or U-shaped mounting member made of a flexible material is deformed and inserted between the first wall material and the second wall material through the mounting hole. After passing between the first wall material and the second wall material and adhering both ends to the first wall material and the second wall material, respectively, a reactive curable resin or mortar is injected into the mounting member. Solidify to form a base reinforcing material larger than the mounting hole, bring the bracket seat into contact with the surface of the first wall material, and screw a screw into the base reinforcing material from above the bracket seat to receive the bracket support. A handrail installation method characterized in that the seat is attached to the first wall material and the handrail is attached to the bracket seat. 3. A handrail mounting structure in which a handrail is attached to the surface of the first wall material of a wall in which the first wall material and the second wall material are provided with a constant spacing, A mounting hole is provided, and the mounting member is inserted into the mounting hole, the tip of the mounting member and the inner surface of the second wall member, and the edge surface of the mounting hole and the peripheral side surface of the mounting member, respectively. A handrail mounting structure characterized in that it is attached by adhesion, a bracket seat is attached to an end surface of the mounting member on the first wall material side via a decorative plate, and a handrail is attached to the bracket seat. 4. A handrail mounting method for mounting a handrail on the surface of the first wall material of a wall in which the first wall material and the second wall material are provided at regular intervals, and a mounting hole in the first wall material. The mounting member is inserted between the first wall material and the second wall material through the mounting hole, the tip of the mounting member is the inner surface of the second wall material, and the peripheral side surface of the mounting member is Adhering to the edge surfaces of the mounting holes of the one wall material, respectively, and covering the end surface of the mounting member on the first wall material side with a decorative plate,
A handrail mounting characterized in that the bracket seat is brought into contact with this decorative plate, a screw is screwed into the mounting member from above the bracket seat to attach the bracket seat to the mounting member, and a handrail is attached to the bracket seat. Construction method.