JP2006257664A - Baluster mounting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a baluster mounting structure which enables a baluster of a staircase to be accurately and inexpensively mounted in such a manner as to be excellent in finished appearance, strength and durability. <P>SOLUTION: A lateral fixing implement and a lower fixing implement for mounting the baluster have an approximate U-shape which is composed of a base part and a mounting piece almost perpendicularly bent from both the ends of the base part, and mounting holes are provided in the mounting piece and the base part, respectively. The base part of the lateral fixing implement is mounted and fixed in a prescribed position on a nosing butt end of a tread by forward protruding the right and left mounting pieces of the lateral fixing implement. Directly below the lateral fixing implement, the lower fixing implement is mounted and fixed in a prescribed position on the tread, positioned lower by one step, or the floor surface of the first floor by downward directing the base part of the lower fixing implement and upward protruding the mounting piece. A side surface of a baluster body is mounted and fixed on the nosing butt end of the tread by means of the lateral fixing implement; a lower part of the baluster body is mounted and fixed on the tread or the floor surface of the first floor by means of the lower fixing implement; and an upper part of the baluster body is fixed to a handrail. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a structure for attaching a handrail for a staircase.

  Conventionally, in order to attach a balustrade for a staircase, the upper end portion of the balustrade is processed with a tenon, while a tenon hole is formed on the back surface of the handrail and the tenon is inserted into the tenon hole, or a handrail is installed. A dowel assembly structure is generally used in which a dowel is machined at the upper end of the child, a dowel hole is machined on the back surface of the handrail, and the dowel is inserted into the dowel hole. On the other hand, the same applies to the bottom end of the handrail, and the bottom or bottom structure of the handrail is formed by processing a hole having a shape and size substantially equal to the bottom of the handrail at the bottom or bottom structure of the handrail. Was inserted into the hole in the tread. In addition to these methods, the back side of the handrail and the tread are not drilled, but are attached and fixed to the back of the hand rail and the tread using screws or the like.

As a method other than the above, a notch step portion is provided along the longitudinal direction on the back surface of the handrail, and the upper end portion of the handrail is attached by screwing or the like with or without a mounting bracket on the notch step portion. On the other hand, the lower end of the balustrade was inserted into a through hole provided in the tread, and covered with a decorative cap or the like from the back of the tread. (For example, see Non-Patent Document 1)
Architectural Materials Research Company, Design Structure Division, “Artist Encyclopedias in Picture, Volume 8, Practical Woodwork 2” Architectural Materials Research Inc., published on September 10, 1991, pp. 174-175 “Stairs”

  However, in the above-described conventional handrail attachment structure, wood work such as drilling or non-penetrating holes for attaching the handrail or dowel hole machining is required at a predetermined position of the step board to which the lower end of the handrail is attached. It was. Also, when a mounting hole that penetrates or does not penetrate and is fixed with a mounting screw, etc., the mounting strength is weakened with only the mounting screw, and the head of the mounting screw is exposed on the tread board, which makes it very unsightly in appearance. It was. Furthermore, since the upper end portion of the handrail is attached to the back surface of the handrail, a notch step portion or a hole for attaching the handrail device must be formed on the back surface of the handrail. Therefore, it required a lot of construction work and construction techniques.

  In recent years, in the housing construction industry, the number of skilled workers who can install and install staircases, especially handrails and balustrades with high accuracy and finish, has been reduced, and it took a lot of time and effort, which was a big problem for workability. . In the middle, it was desired to realize a balustrade mounting structure that can be installed by amateurs with good accuracy and finish, has excellent mounting strength and durability, and can easily mount and install stair railings.

  The conventional handrail attachment structure only attaches the top end of the handrail to the handrail and the bottom end of the handrail to the footboard, so when a large load or strong impact is applied to the approximate center of the handrail, it is very secure If it is not attached, the vertical span of the attachment and fixing part of the handrail is large, so there is a risk of damage if a large impact or load is applied.

  An object of the present invention is to provide a handrail attachment structure for attaching a handrail attached to a handrail of a staircase with high accuracy, excellent finished appearance, excellent strength and durability, and that can be attached and constructed extremely easily at low cost. .

  In order to achieve the above object, a handrail attachment structure according to claim 1 of the present invention is a handrail for a staircase comprising a handrail body of a staircase, a side surface fixing tool and a lower fixing tool, a handrail, a step board, and a girder. In the mounting structure, the side surface fixing tool and the lower fixing tool have a substantially U-shaped cross-sectional view made of a base portion and two mounting pieces provided at substantially right angles from both ends of the base portion, The mounting piece and the base are provided with mounting holes, and the side fixture has both the left and right mounting pieces protruding forward, and the base is fixedly mounted at a predetermined position on the nose tip of the tread. The fixture is directly below the predetermined position of the nose tip, and the left and right attachment pieces protrude upward with the base of the lower fixture down to a position corresponding to the predetermined position of the step board or the floor board, Mounting is fixed The balustrade body is clamped on its side by the side fixing tool and fixed to the nose tip of the tread board, and the lower part of the handrail main body is fixed to the tread board or floor board by inserting the lower fixing tool, The upper end of the handrail main body is attached to the handrail.

  According to the present invention having such a configuration, since it is not necessary to drill holes for attaching handrails to the tread, even if it is not a skilled worker, the accuracy and finish are excellent, and it is extremely simple and inexpensive to install and install Can do. In addition, since the handrail body is installed and installed at the top of the tread plate, the nose tip of the step board and the handrail, the vertical span of the handrail attachment and fixing portion can be shortened, and a relatively large load is applied to the handrail. Even if an impact is applied, there is little risk of breakage, and the strength and durability are excellent.

  According to a second aspect of the present invention, in the handrail attachment structure according to the first aspect, the lower portion of the handrail main body is fitted by a fitting member made of a cylindrical body covering the handrail main body. The fitting member has an inner peripheral cross-sectional shape and an inner peripheral size which are larger than the outer peripheral cross-sectional shape and size of the balustrade body.

  According to the present invention having such a configuration, even if a head such as a mounting screw at the lower part of the balustrade is exposed or a gap is generated between the lower part of the balustrade and the tread surface, the fitting member conceals it. Therefore, it is possible to effectively prevent the appearance from becoming unsightly, and the finished appearance is excellent.

  According to a third aspect of the present invention, in the handrail attachment structure according to the first or second aspect, an inner end of the tubular member of the fitting member is formed at an upper end portion of the fitting member formed of the tubular member. The circumferential cross-sectional shape is substantially equal to the outer circumferential cross-sectional shape of the balustrade body, the inner circumferential dimension of the tubular body of the fitting member is substantially equal to the outer circumferential dimension of the baluster body cross-section, and the lower part of the fitting member made of the tubular body The inner circumferential dimension of the tubular body of the fitting member is larger than the outer circumferential dimension of the cross section of the baluster body, and the inner circumferential surface of the tubular body of the fitting member and the balustrade body at the lower part of the fitting member It is characterized in that a gap is provided between the outer peripheral surface of the first and second outer surfaces.

  According to the present invention having such a configuration, when the fitting member is put on the lower part of the balustrade body, no gap or the like is generated between the balustrade body and the upper end of the fitting member. It will be even better.

  Furthermore, in the lower part of the fitting member made of a tubular body of the fitting member, the inner circumference dimension of the tubular body of the fitting member is larger than the outer circumference dimension in the cross section of the balustrade body, and in the lower part of the fitting member Since the gap is provided between the inner peripheral surface of the tubular body of the fitting member and the outer peripheral surface of the handrail main body, not only the concealing effect of the head of the mounting screw etc. at the lower end of the handrail main body Even if the protruding portion of the screw is generated due to the low construction technique, the finished appearance at the lower end of the handrail is further improved by being accommodated in the gap.

  According to the first aspect of the present invention, it is composed of a handrail main body, a side fixing tool, a lower fixing tool, a handrail, a tread, and a girder. The side fixing tool and the lower fixing tool include a base having an attachment hole and the base. It is provided at a substantially right angle from both ends of the mounting plate, is composed of a mounting piece having mounting holes, has a substantially U-shaped cross-sectional view, and has a side fixture on the nose of the tread plate with the base as the back, and both left and right mounting A piece is protruded forward and fixed, and immediately below it, at a position corresponding to a predetermined position of the step board or floor board, the lower fixture has the base at the bottom and both the left and right attachment pieces protrude upward, The side of the handrail main body is clamped by the side fixing tool and fixed to the nose of the tread board, and the lower fixing tool is inserted into the lower part of the handrail main body at the lower part of the handrail main body. By Since the top end of the balustrade body is fixed to the handrail and attached to the footboard or floorboard, there is no need for drilling holes for attaching the handrail to the footboard. The finish is good and the installation can be done very easily and inexpensively. In addition, the balustrade body is installed and installed at the top of the tread board, the nose tip of the upper tread board, and the handrail, so there is little risk of damage even if a relatively large load or impact is applied to the balustrade, making it durable and durable. It will be excellent.

  According to invention of Claim 2, the lower part of a handrail main body is fitted by the fitting member which consists of a cylindrical body which covers a handrail main body, and the outer periphery cross-sectional shape of a handrail main body and a fitting member are Because it has an inner circumference cross-sectional shape and an inner circumference dimension that are larger than the dimensions, the head of the mounting screw at the bottom of the handrail is not exposed in appearance, and there is a gap between the bottom of the handrail and the tread surface. However, since it can be concealed by the fitting member, it can be effectively prevented from becoming unsightly in appearance, and the finished appearance is excellent.

  According to the invention described in claim 3, at the upper end portion of the fitting member made of a cylindrical body, the inner circumferential cross-sectional shape of the tubular body of the fitting member is substantially equal to the outer circumferential cross-sectional shape of the balustrade body, and the fitting is performed. Since the inner circumference of the tubular member is approximately equal to the outer circumference of the cross section of the handrail body, when the fitting member is placed on the lower part of the handrail body, there is a gap between the handrail body and the upper end of the fitting member. Therefore, the finished appearance is further improved.

  Furthermore, in the lower part of the fitting member made of a cylindrical body, the inner circumferential dimension of the cylindrical body of the fitting member is larger than the outer circumferential dimension in the cross section of the balustrade body, and in the lower part of the fitting member, the cylinder of the fitting member Since a gap is provided between the inner peripheral surface of the cylindrical body and the outer peripheral surface of the handrail main body, the inner peripheral surface of the tubular body of the fitting member and the handrail main body at the lower end of the handrail main body In the gap between the outer peripheral surface and the screw head, the protruding portion of the screw resulting from the low construction technique is accommodated, and the finished appearance at the lower part of the handrail is further improved.

  Hereinafter, an example of an embodiment of the present invention will be described. FIG. 1 is a perspective view showing an example of an embodiment of a handrail attachment structure of the present invention, FIG. 2 is a perspective view showing an embodiment of a side fixture of the present invention, and FIG. 3 is an embodiment of a lower fixture of the present invention. FIG. 4 is a perspective view showing a first embodiment of the fitting member of the present invention, and FIG. 5 shows a second embodiment of the fitting member of the present invention. (A) is a top view, (B) is a cross-sectional view taken along line AA, (C) is a cross-sectional view taken along line BB, and (D) is a bottom view. Moreover, (e) is a cross-sectional view showing a state where the fitting member is mounted on the balustrade body. FIG. 6 is an explanatory view showing an attachment state of the handrail of the present invention.

  FIG. 1 shows a handrail attachment structure 1 for a staircase. The stairs girder 7 is attached and fixed to a beam (not shown) on the second floor of a building such as a house or a large drawing (not shown) below the first floor, and a tread 6 is attached to the girder 7 to form a stairs. ing. Further, a handrail 5 and a handrail body 2 are attached to the stairs. The handrail attachment structure 1 of the present invention is composed of the handrail main body 2, the side surface fixing tool 3, the lower fixing tool 4, the tread plate 6, the girder 7, and the handrail 5. Furthermore, the lower part of the handrail main body 2 is covered with the fitting member 8.

  FIG. 2 shows a side fixture 3 according to the present invention. The side fixture 3 is composed of a base portion 3a and two attachment pieces 3b provided at substantially right angles from both ends of the base portion 3a. The side fixture 3 of the present invention has a substantially U-shape when viewed in a horizontal cross section. Further, attachment holes H are provided at predetermined positions of the base 3a and the attachment piece 3b. The position, size, and number of the attachment holes H are appropriately determined in consideration of the strength of the handrail body 2 and the handrail 5 after the handrail body 2 is attached.

  In consideration of the fact that the base portion 3a is attached to the nose tip D of the tread board 6, the height dimension of the base portion 3a is preferably equal to or less than the thickness dimension of the tread board 6. Otherwise, the base 3a protrudes from the tread board 6. Considering the thickness dimension of the step board 6 of the staircase, the height dimension of the base portion 3a is suitably about 30 mm to 60 mm. The dimension in the width direction of the base portion 3a is a dimension that matches the dimension in the width direction of the handrail body 2 (the dimension in the left-right direction when the stairs are viewed from the front). That is, the size is set such that the handrail main body 2 can be clamped by the two attachment pieces 3b provided substantially at right angles from both ends of the base portion 3a of the side surface fixing tool 3.

  Moreover, it is desirable that the projecting dimension of the mounting piece 3b from the base part 3a is equal to or less than the thickness dimension of the handrail body 2 (the dimension in the depth direction when the stairs are viewed from the front). Otherwise, the attachment piece 3b will protrude from the balustrade body 2. Considering the width dimension of the handrail main body 2, the inner dimension in the width direction of the base portion 3a is suitably about 30 mm to 60 mm. Considering the thickness dimension of the balustrade body 2, the inner dimension in the protruding direction of the mounting piece 3b is suitably about 15 mm to 40 mm.

  Moreover, the baluster main body 2 has a rectangular shape with a cross-sectional shape in this example, and is a hollow cylindrical body. However, it is not limited to a cross-sectional shape rectangle. In addition to the rectangle, various shapes such as a square, a circle, an ellipse, a semicircle, a semi-ellipse, and a trapezoid can be applied. Further, since the inside is hollow and a cylindrical body, the overall weight is reduced, which is suitable for handrail attaching workability. However, it may be an internal solid structure. In this case, it is necessary that the inside of the lower portion of the balustrade body 2 is a hollow cylindrical body so as not to hinder the insertion of the lower fixture 4.

  Further, the width of the balustrade body 2 is suitably about 30 to 60 mm, the thickness is about 15 to 40 mm, and the length is about 600 to 1200 mm. However, it is not limited to these dimensions.

  The shape of both the left and right attachment pieces 3b of the side fixture 3 is a substantially semicircular shape as an example in FIG. Further, as an example, the shape of the side fixture 3 is a substantially U-shaped shape in a horizontal cross-sectional shape, and is a shape as shown in FIG. 2 in a perspective view. However, the present invention is not limited to this. It can be set as the shape corresponding to the cross-sectional shape of the handrail main body 2 described above. This is determined in consideration of the workability of attaching the handrail body 2 and the appearance design at the time of finishing.

  However, if the corner portion at the tip of the protruding portion of the mounting piece 3b of the side surface fixing tool 3 has a smooth curved shape, the risk of catching clothes or feet when a person goes up and down the stairs. This is suitable for safety.

  The attachment hole H provided in the base portion 3a of the side surface fixing tool 3 is a balustrade body 2 when the head of the attachment screw N protrudes from the base portion 3a when the base portion 3a is attached to the nose tip D of the tread plate 6 with the attachment screw N. Therefore, the mounting screw N is preferably a countersunk head mounting screw N, and the mounting hole H is preferably dished. Since the head of the mounting screw N and the surface of the base portion 3a are substantially flush, it is suitable for improving the mounting accuracy and finishing of the balustrade body 2. The same applies to the mounting hole H provided in the mounting piece 3b of the side surface fixing tool 3. That is, the balustrade body 2 and the side surface fixing tool 3 are attached with the attachment screws N from the left and right sides of the side surface fixing tool 3 through the attachment pieces 3b when the stairs are viewed from the front. It is desirable that dish processing is performed as viewed from the outer side of the plate. Similarly, it is desirable to use a countersunk mounting screw N as the mounting screw N.

  In FIG. 3, an example of the lower fixture 4 of the present invention is shown. The lower fixture 4 is composed of a base portion 4a and two attachment pieces 4b provided at substantially right angles from both ends of the base portion 4a. The lower fixture 4 of the present invention has a substantially U-shape when viewed in a vertical cross section. The base 4a and the mounting piece 4b are provided with mounting holes H. The position, size, and number of the mounting holes H are appropriately determined in consideration of the strength of the handrail body 2 and handrail body 5 after the handrail is attached.

  The size of the lower fixture 4 of the present invention is such that the lower fixture 4 projects the mounting piece 4b upward, and the base portion 4a is the surface of the footboard 6 that is one step lower than the footboard 6 to which the side surface fixture 3 is attached. Or it attaches to the predetermined position of the floor surface (not shown) of a 1st floor, and the lower end part of the handrail main body 2 of the said cylindrical body shown in this example is inserted and attached. In consideration of this, the outer dimensions and shape of the bottom surface including the mounting piece 4b are smaller than the inner circumferential dimension and shape of the cylindrical body structure of the balustrade body 2, and may be a dimension and shape commensurate with it. desirable. Specifically, about 30 mm to 60 mm in the dimension in the width direction (left and right direction when the stairs are viewed from the front), and about 15 mm to 40 mm in the dimension in the depth direction (the depth direction when the stairs are viewed from the front). About 20 mm to 30 mm is suitable for the protruding dimension of 4b. These dimensions are only standard dimensions, and are not limited to these dimensions.

  The handrail main body 2 has a configuration in which the lower fixture 4 is completely accommodated in the lower end portion thereof. In this case, the position of the mounting hole H provided in the mounting piece 4b of the lower fixture 4 on the side surface in the thickness direction of the handrail body 2 (the depth direction when the stairs are viewed from the front) at the lower part of the handrail body 2. It is necessary that the mounting hole H is provided at a position corresponding to. At this time, the mounting hole H in the lower part of the balustrade body 2 or the mounting piece 4b of the lower fixing tool 4 is not affected even if a slight error in the vertical direction occurs in the mounting position accuracy of the lower fixing tool 4. A certain mounting hole H is more suitable for workability if it is a long hole having an oblong shape elongated in the vertical direction. The design when the mounting hole H in the mounting piece 4b of the lower fixture 4 is vertically long and narrow, and the mounting hole H in the lower part of the balustrade body 2 is a normal circle when viewed from the outside. Excellent in properties.

  Further, in this example, the lower fixture 4 of the present invention has a rectangular base portion 4a as shown in FIG. 3, and attachment pieces 4b provided at substantially right angles at both ends thereof are formed. However, in the shape of the base portion 4a, the rectangle is an example, and may be a square or other shapes. The number and position of the attachment holes H are appropriately determined in consideration of the strength of the balustrade body 2 and the handrail body 5. In the case where the handrail main body 2 is a cylindrical body, the lower fixing member 4 can be accommodated in the inside of the handrail body 2 so as to have an angular shape. However, it may be a shape having a curved surface (not shown) instead of the square shape shown in this example. Moreover, since the attachment screw N used for the base part 4a is concealed inside, it does not need to be a countersunk head, and the dishing of the attachment hole H provided in the base part 4a is not particularly necessary. On the other hand, the mounting screw N used for the mounting piece 4b is exposed to the outside as it is, and is preferably a countersunk head. Further, it is desirable that the mounting hole H provided in the mounting piece 4b is dished.

  Further, when the handrail main body 2 is not the cylindrical body structure shown in this example but an internal solid structure, as described above, only the portion where the lower fixture 4 is inserted in the lower part of the handrail main body 2. The inside needs to be a hollow cylindrical body. That is, even when the balustrade body 2 is not the cylindrical body structure shown in this example but an internal solid structure, the portion where the lower fixture 4 is inserted (about 50 mm to 100 mm from the lower end of the balustrade body 2) ) Only a cylindrical body and an internal hollow structure are preferable.

  As another example, the attachment piece 4 b of the lower fixture 4 may be configured to sandwich the outer surface of the handrail body 2 at the lower part of the handrail body 2. In this case, it is possible to provide a mounting hole (not shown) on the side surface of the handrail body 2 at a position commensurate with the position of the mounting hole H of the mounting piece 4b at the lower part of the handrail body 2. Desirable for sex. The pilot hole (not shown) may be smaller in diameter than the attachment hole H. The mounting screw N is preferably a so-called tapping screw having a thread tapping function at the tip. Screw in with a tapping screw. If it does in this way, position shift with the baluster main body 2 and the lower fixture 4 at the time of construction can be absorbed even if it is somewhat.

  Further, as shown in this example, even when the handrail main body 2 has a cylindrical body structure, it is preferable for workability to use a so-called tapping screw in which the mounting screw N has a thread cutting tap function at the tip. . When the balustrade body 2 is attached to the side surface fixing tool 3, an attachment hole H is provided in a predetermined position in the attachment piece 3a of the side surface fixing tool 3, but the attachment hole H is not provided in the handrail body 2 in advance. May be. Rather, it is better not to provide it. When attaching the handrail main body 2 to the side surface fixing tool 3, the accuracy of attaching the stair girder 7 and the tread board 6 is not necessarily zero error. If an error occurs, the attachment hole H of the attachment piece 3b of the side surface fixing tool 3 and the attachment hole H of the handrail main body 2 do not coincide with each other, so that attachment may be impossible. Therefore, even if there is a slight error in the mounting accuracy, by using a tapping screw as the mounting screw N without providing the mounting hole H on the handrail main body side in advance, there is a workability defect due to the positional displacement of the mounting hole H. It can be effectively prevented. In addition to this method, an oblong mounting hole (not shown) elongated in the vertical direction may be provided in the side surface position of the balustrade body 2 corresponding to the mounting hole H in the mounting piece 3b of the side surface fixing tool 3. Although displacement in the vertical direction is likely to occur during construction, misalignment can be absorbed by making it oval in this way.

  The handrail main body 2, the side fixture 3, and the lower fixture 4 are made of metal such as aluminum, stainless steel, iron baked finish, galvanized steel plate, rigid PVC resin, olefin resin, ABS resin, rigid urethane. A synthetic resin molded body such as a resin can be exemplified as a suitable one. Further, as the girder 7, the step board 6, the handrail main body 5 and the like, the above-mentioned metal, synthetic resin molded body and the like can be exemplified as a suitable material in addition to the laminated material, LVL, plywood, wood material such as solid wood.

  In FIG. 4, 1st embodiment of the fitting member 8 of this invention is shown. The fitting member 8 is formed of a cylindrical body, and has a function of concealing the lower mounting screw N and the like by covering the lower portion of the handrail main body 2. The lower part of the handrail main body 2 is inserted into the fitting member 8. The cross-sectional shape and the inner peripheral dimension of the inner periphery in the horizontal cross section of the fitting member 8 are configured to be larger than the outer cross-sectional shape and the outer peripheral dimension of the handrail body 2 in the horizontal cross section.

  The lower part of the handrail main body 2 is fitted by a fitting member 8 made of a cylindrical body covering the handrail main body 2. The fitting member 8 has an inner peripheral cross-sectional shape and an inner peripheral size that are larger than the outer peripheral cross-sectional shape and outer peripheral size of the balustrade body 2. Since it has such a structure, the screw head of the attachment screw N at the lower part of the handrail body 2 is not exposed on the lower side surface of the handrail body 2 and the finished appearance is excellent. In addition, since the lower end portion of the fitting member 8 is in contact with the tread plate 6, even if the mounting accuracy of the balustrade body 2 is poor and a gap is generated between the surface of the tread plate 6 and the lower end of the balustrade body 2, The gap is concealed, and thus the finished appearance is even better.

  Further, at the upper end portion of the fitting member 8 made of a cylindrical body, the inner peripheral cross-sectional shape of the cylindrical body of the fitting member 8 is substantially equal to the outer peripheral cross-sectional shape of the balustrade body 2, and the cylinder of the fitting member 8. The inner peripheral dimension of the tubular body of the fitting member 8 is substantially equal to the outer peripheral dimension of the cross section of the balustrade body 2 and the inner circumferential dimension of the tubular body of the fitting member 8 is below the fitting member 8 made of a tubular body. The clearance S is larger than the outer peripheral dimension in the cross section of FIG. 2, and a gap S is provided between the inner peripheral surface of the tubular body of the fitting member 8 and the outer peripheral surface of the balustrade body 2 at the lower part of the fitting member 8. . With such a configuration, when the fitting member 8 is put on the lower part of the balustrade body 2, no gap or the like is generated between the upper portion of the balustrade body 2 and the fitting member 8, and thus the finished appearance It will be even better. Furthermore, in the lower part of the fitting member 8 made of a cylindrical body, the inner circumference dimension of the cylindrical body of the fitting member 8 is larger than the outer circumference dimension in the cross section of the balustrade body 2, and in the lower part of the fitting member 8, Since the gap S is provided between the inner peripheral surface of the tubular body of the landing member 8 and the outer peripheral surface of the balustrade body 2, the head of the mounting screw N is exposed at the lower end of the balustrade body 2. Even if it protrudes or protrudes, the fitting member 8 is covered, so that the head or the protruding portion of the mounting screw N is accommodated in the gap S, so that the finished appearance at the lower end portion of the balustrade body 2 can be obtained. Further improve.

  The fitting member 8 of the present invention can be exemplified by the shape shown in FIG. 4 as an example, but may have other shapes. In this example, the fitting member 8 is composed of a fitting member upper part 8a having a quadrangular frustum-shaped appearance and a fitting member lower part 8b having a quadrangular prism shape connected to the lower part of the fitting member upper part 8a. Yes. Each of the fitting member upper part 8a and the fitting member lower part 8b has a hollow structure, and is constituted by a so-called cylindrical body. The upper end 8c of the fitting member, which is the uppermost end of the fitting member upper part 8a, has an inner circumference of the cylindrical body that is substantially the same shape and size as the outer circumference of the balustrade body 2, and the lower portion of the balustrade body 2 is fitted. When inserted into the attachment member 8, the gap is hardly generated between the outer periphery of the handrail main body 2 and the inner periphery of the attachment member upper end portion 8 c. Further, as described above, since the gap S is secured between the outer periphery of the balustrade body 2 and the inner periphery of the fitting member lower part 8b, the fitting member lower part 8b has a screw head or a screw screw. The protruding portion is housed in the gap S and is not visible from the outside, and the appearance design is excellent.

  With the configuration described above, the handrail attachment structure 1 of the present invention has an excellent finished appearance. As long as it has these effects, the shape and size of the fitting member 8 may be other than the embodiment shown in this example. As a material of the fitting member 8 of the present invention, a molded body such as a vinyl chloride resin, an olefin resin, a urethane resin, and an acrylic resin can be exemplified as a suitable material. In addition, metal, such as aluminum, stainless steel, iron baking finish, and galvanized steel sheet, may be used.

  In the case of the shape shown in this example, the size of the fitting member 8 of the present invention is the size of the inner circumference of the fitting member upper end portion 8c in the width direction (left and right direction when the stairs are viewed from the front), and is approximately 30 mm to The dimension in the thickness direction (depth direction when the stairs are viewed from the front) is approximately 15 mm to 40 mm. In addition, the inner circumferential dimension of the fitting member lower part 8b is suitably about 35 mm to 70 mm in the width direction and about 20 mm to 50 mm in the thickness direction. Further, the dimension of the gap S is preferably about 5 mm to 10 mm. However, the present invention is not limited to the above materials, shapes, and dimensions.

  In FIG. 5, 2nd embodiment of the fitting member 8 of this invention is shown. The fitting member 8 made of the tubular body of the present invention has an inner circumferential surface on the inner circumferential surface of the lower portion 8b of the fitting member, and an inner circumferential surface in contact with the width direction of the handrail body 2 (left and right direction when the stairs are viewed from the front). A protrusion P is formed at a predetermined position on the inner peripheral surface facing the inner peripheral surface. Furthermore, in the lower part of the outer peripheral surface of the balustrade body 2 of the present invention, a concave portion U is provided at a position corresponding to the projection P on two surfaces in the width direction (left and right direction when the stairs are viewed from the front). The protrusion P and the recess U are configured to fit with each other. As an example, the shape of the protrusion P is a substantially semicircular cross-sectional shape as shown in FIG. As an example, the height of the protrusion is about 3 mm, the thickness of the protrusion is about 1 mm, and the cross-sectional shape is about 6 mm in diameter when viewed from the side. This is merely an example, and is not limited to this shape and size. It may be an elliptical arc or the like.

  On the other hand, in the lower part of the outer peripheral surface in the width direction of the balustrade body 2 (left and right direction when the stairs are viewed from the front), a concave portion U is provided at a predetermined location, that is, a position corresponding to the projection P. The shape of the concave portion U is, for example, a through hole having a substantially circular shape with a diameter of about 6 mm when the handrail body 2 is viewed from the front (when the stairs are viewed from the front). However, it is not limited to this shape and size. In addition to a circle, an ellipse or a rectangle may be used.

  5A is a cross-sectional view taken along the line AA, and FIG. 5C is a cross-sectional view taken along the line BB of the fitting member 8 as viewed from above. Further, (d) is a bottom view, and (e) is a cross-sectional view of a state in which the fitting member 8 is mounted on the balustrade body 2, and the protrusion P formed on the fitting member 8 is the balustrade body. 2 shows a state in which the concave portion U is provided in the recess U.

  Thus, when the projection P and the concave portion U are fitted to each other, the projection P and the concave portion U are firmly fitted when the fitting member 8 is mounted on and covered with the lower portion of the balustrade body 2. The fitting member 8 can be firmly fixed to the balustrade body 2.

  Further, as can be seen from FIG. 5 (d), the fitting member 8 of the present invention is fitted with a handrail body 2 so that the positioning of the handrail body 2 within the fitting member 8 made of a cylindrical body can be ensured. Ribs R are formed on the side surfaces of the inner peripheral surface of the landing member 8 that are in contact with the thickness direction of the balustrade body 2 (the depth direction when the stairs are viewed from the front). In this example, a total of four ribs R are formed, two on each side. When the handrail main body 2 is inserted into the fitting member 8, the concave portion U provided on the outer circumferential surface of the handrail main body 2 in the width direction (left and right direction when the stairs are viewed from the front), and the lower portion of the fitting member 8 The protrusion P provided on the inner peripheral surface in the width direction 8b (left and right direction when the stairs are viewed from the front) is fitted. Furthermore, the outer peripheral surface of the balustrade body 2 in the thickness direction (the depth direction when the stairs are viewed from the front) is supported by the rib R from both the left and right directions. In this way, the balustrade body 2 of the present invention is firmly and stably positioned and fixed inside the fitting member 8 at a predetermined position. At this time, by the rib R, the inner peripheral surface of the fitting member 8 in the thickness direction (depth direction when the stairs are viewed from the front) and the inner periphery of the handrail body 2 in the thickness direction (depth direction when the stairs are viewed from the front) A gap S is provided between the surface and the head of the mounting screw N so as to be accommodated. As shown in this example, the rib R may be not only in the thickness direction but only in the width direction, or may be in both the thickness direction and the width direction. Therefore, the gap S is the same.

  When the fitting member 8 is removed, it can be removed very simply by holding the fitting member 8 by hand and pulling it upward. As described above, the shapes and dimensions of the protrusions P and the recesses U for detaching the fitting member 8 very easily can be exemplified by the shapes and dimensions shown in this example as a suitable example. Moreover, the structure using the said rib R can be illustrated as an example for the stable fixation inside the fitting member 8 of the balustrade body 2 of the present invention.

  Further, a chamfered portion M is formed at the end of the fitting insertion hole K in the upper part of the fitting member 8 of the present invention, and the rib is formed at the lower part of the fitting insertion hole K in the lower part 8b of the fitting member. A chamfered portion M is formed at the lower end of R. As an example, the shape and size of the chamfered portion M can be exemplified as a C-surface of 1 mm. However, it is not limited to this shape and size. In this way, when the chamfered portions M are formed at the upper and lower end portions of the fitting insertion hole K of the fitting member 8, the handrail body 2 is inserted from either the upper or lower side of the fitting insertion hole K of the fitting member 8. However, since the chamfered portion M is formed, it can be inserted very smoothly.

In FIG. 6, the attachment state of the handrail main body 2 in the handrail attachment structure 1 of this invention is shown. Here, the installation procedure will be described below.
1. At the place where the stairs are installed in the house, install and install the stairs girder 7 and the tread board 6.
2. The planned positions where the handrail body 5 and the handrail body 2 are to be attached are accurately printed and determined.
3. Using a mounting hole H provided in advance in the base portion 3a so that the side fixture 3 is at the back of the base portion 3a and the left and right mounting pieces 3b protrude toward the front at a predetermined position of the nose tip D of each tread plate 6. Securely attach and fix with mounting screws N (use tapping screws).
4). The lower fixing tool 4 is attached to a predetermined position directly below the side fixing tool 3 on the surface of the tread board 6 that is one step below each of the treads 6 to which the side fixing tool 3 is attached. At this time, the mounting screw N (tapping screw) is used by using the mounting hole H provided in advance in the base portion 4a so that the left and right mounting pieces 4b protrude upward with the base portion 4a of the lower fixture 4 facing down. Use to secure and fix.
5. Similarly, the side surface fixing tool 3 is attached to a predetermined position of the nose tip of the uppermost rising ridge (not shown).
6. Similarly, attach the lower fixture 4 to a predetermined position on the floor (not shown) on the first floor.
7). Before attaching the handrail main body 2, the handrail main body 2 is inserted into the tubular member 8 in advance.
8). The fitting member 8 is temporarily fixed at the position of the handrail main body 2 located between the tread plate 6 to which the side fixture 3 is attached and the tread plate 6 to which the lower fixture 4 is attached. Adhesive tape or the like may be used. In this state, the handrail main body 2 is sandwiched between the two left and right mounting pieces 3b of the side surface fixing tool 3. The balustrade body 2 is moved downward as it is fitted from the front to the back as viewed from the front of the stairs.
9. As another method, the balustrade body 2 is inserted into the side fixture 3 from above, the fitting member 8 is covered before reaching the lower fixture 4, and the balustrade body 2 is further moved downward. Good.
10. The lower fixture 4 attached to the surface of the lower step board 6 is inserted into the tubular body of the handrail main body 2 completely, and the lower end portion of the handrail main body 2 is brought into contact with the surface of the step board 6.
11. In this state, the fixing screws N (using tapping screws) are firmly fixed from the left and right side surfaces of the balustrade body 2 using the mounting holes H provided in the two left and right mounting pieces 3b of the side surface fixing tool 3. To do.
12 Using the mounting holes H provided in the lower part of the side surface of the handrail body 2 and the mounting holes H provided in the two left and right mounting pieces 4b of the lower fixture 4, the lower part and the lower part of the handrail body 2 are fixed. Securely fix the tool 4 with the mounting screw N (using a tapping screw).
13. Similarly, the handrail main body 2 is attached to the upper ridge (not shown) and the first floor (not shown) attached to the place where the stairs are fully raised.
14 The fitting member 8 is moved downward by hand, the lower end portion of the fitting member 8 is brought into contact with the surface of the tread plate 6, and the screw head of the mounting screw N is concealed.
15. After all the handrail main bodies 2 have been attached, it is confirmed that the entire attachment error is not hindered. Thereafter, the handrail body 5 is attached. The attachment method of the handrail main body 5 may be a conventional method.
This completes the construction of the balustrade mounting structure 1 of the present invention.

  In the balustrade mounting structure 1 of the present invention, the balustrade body 2 to be attached to the lowermost tread is not shown, but a balustrade having a shape and size slightly larger than those of the other balustrade bodies 2 is used as a main pillar. It may be used as The attachment method and the like may be the same as those of the other handrail body 2. The side fixing tool 3, the lower fixing tool 4, the fitting member 8 and the like may be separately prepared with shapes and dimensions corresponding to the parent pillar (not shown).

  In addition, as shown in FIG. 1, in the handrail attachment structure 1 of the present invention, the number of handrail bodies 2 attached per step of the stair tread 6 may be one, or two or more. It may be. For example, in the case of two attachments, the first one is attached to the nose tip D of the step board 6 as shown in FIG. 1, and the second is not shown, but the handrail body 2 attached to the nose tip D of the lower step board 6 is not shown. It is good to attach so that it may become a substantially equal space | interval in the respectively substantially middle position. Although the handrail main body 2 at the intermediate position is not shown, it is attached to the upper surface of the tread plate 6 and the rear surface of the handrail main body 5. The attachment method to the upper surface of the tread board 6 and the attachment method to the back surface of the handrail body 5 are the same as those of the first handrail body 2.

The perspective view which shows an example of embodiment of the handrail attachment structure of this invention. The perspective view which shows one Embodiment of the side surface fixing tool of this invention. The perspective view which shows one Embodiment of the lower fixing tool of this invention. The perspective view which shows 1st embodiment of the fitting member of this invention. 2nd embodiment of the fitting member of this invention is shown. (A) is a top view, (B) is a cross-sectional view taken along the line A-A, (C) is a cross-sectional view taken along the line BB, (D) is a bottom view, and (E) is fitted to the handrail body. The cross-sectional view which shows the state which mounted | wore the wearing member. Explanatory drawing which shows the attachment state of the handrail of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Handrail attachment structure 2 Handrail main body 3 Side surface fixing tool 3a Base part 3b Mounting piece H Mounting hole N Mounting screw 4 Lower fixing tool 4a Base part 4b Mounting piece 5 Handrail main body 6 Footboard D Stair nose mouthpiece 7 Girder 8 Insertion member 8a Insertion Upper part of member 8b Lower part of fitting member 8c Upper end part of fitting member S Gap P Projection U Concave part R Rib K Insertion hole M Chamfer

Claims (3)

A stair railing mounting structure comprising a handrail body of a staircase, a side fixing tool and a lower fixing tool, a handrail, a step board, and a girder, wherein the side fixing tool and the lower fixing tool are a base and both ends of the base. The mounting piece and the base are provided with mounting holes in the mounting piece and the base, and the side surface fixing tool is provided on the left and right sides. Both mounting pieces protrude forward, the base is fixedly attached to a predetermined position of the nose throat of the tread board, and the lower fixing tool is directly below the predetermined position of the nose lip and the predetermined position of the tread or floor board one step below. The left and right mounting pieces are projected upward with the base of the lower fixing member facing down at a position commensurate with the position, and the side of the balustrade body is clamped by the side fixing tool. Nose mouthpiece The lower part of the handrail body is attached and fixed to the step board or the floor board by inserting the lower fixing tool, and the upper end of the handrail body is attached to the handrail. Child mounting structure. The lower part of the handrail main body is fitted by a fitting member made of a cylindrical body covering the handrail main body, and the fitting member has an inner peripheral cross-sectional shape and an inner diameter larger than the outer cross-sectional shape and dimensions of the handrail main body. The handrail attachment structure according to claim 1, wherein the structure has a circumferential dimension. At the upper end portion of the fitting member made of a cylindrical body, the inner circumferential cross-sectional shape of the cylindrical body of the fitting member is substantially equal to the outer circumferential cross-sectional shape of the balustrade body, and the inner circumferential dimension of the cylindrical body of the fitting member Is substantially equal to the outer peripheral dimension in the cross section of the handrail body, and the inner peripheral dimension of the tubular body of the fitting member is larger than the outer peripheral dimension in the cross section of the handrail body in the lower part of the fitting member made of a cylindrical body. 3. The gap according to claim 1, wherein a gap is provided between an inner peripheral surface of the tubular member of the fitting member and an outer peripheral surface of the handrail main body at a lower portion of the fitting member. Handrail attachment structure.

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