JP2000297468A - Handrail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handrail capable of being installed even on a mounting surface having narrow width and capable of being stably supported even in the case of a high handrail, and having excellent appearance and strength. SOLUTION: Each support 2 is composed of a support body 3 having the hollow inside, a hollow core pipe 8 in which an upper end section is inserted from the lower end face of the support body 3 to the hollow inside and a cap 9 installed so as to close the opening of a lower end face at the lover end section of the core pipe 8. The lower end section of the core pipe 8 is inserted into a mounting hole 20 formed to a mounting surface 10, and adhesives 25 are interposed between the core pipe 8 and the internal surface of the mounting hole 20 and each support 2 is fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handrail vertically installed on a floor, such as a veranda made of concrete, and more particularly, to the present invention, in which lower ends of a plurality of columns are embedded in an installation plane having a predetermined width. The present invention relates to a handrail that is vertically installed in a state where the handrail is held.

[0002]

2. Description of the Related Art As shown in FIG.
At the upper end of each support 52, a skirting 54 is erected, and the adjacent support 5
A lower bar 56 is provided between the lower ends of the two bars 2, and a plurality of vertical grids 55 are arranged at equal intervals between the capping bar 54 and the lower bar 56. An installation surface 60 having a predetermined height is formed at a predetermined width (about 150 mm) on the outer peripheral edge of the veranda.
The handrails 51 are installed vertically with the lower ends of the columns 52 buried at 0.

As shown in FIGS. 7 and 8, each of the columns 52 includes a column main body 53 having a rectangular cross section and a fixing tool 58 for fixing the column main body 53 on an installation surface 60.
The fixture 58 is formed by welding the lower end of a core tube 58a having a rectangular cross section to the upper surface of the plate 58b by welding. The plate 58b has a side of 100 mm
It has a square shape of a degree, and has screw holes 65 at four corners. The upper end of the core tube 58a of the fixture 58 is inserted into the hollow interior from the lower end surface of the column main body 53, and is screwed with a screw 80, whereby the core tube 58a is attached to the column main body 53.
Is fixed.

[0004] Anchor bolts 66 are buried at positions corresponding to the screw holes 80 of the plate 58b at positions where the respective columns 52 are disposed on the installation surface 60. The upper end surface of each anchor bolt 66 protrudes from the installation surface 60,
The plate 58b is fixed to the installation surface 60 by inserting the protrusion of the anchor bolt 66 into each screw hole 65 of the plate 58b and tightening the nut 64.

[0005]

However, in the above-described fixing structure of the support column 52, when the width of the installation surface 60 is narrow, the distance between the anchor bolt 66 and the edge of the installation surface 60 becomes short. If an excessive force is applied to the slide 51, the concrete on the installation surface 60 may be broken. Also,
When installing a tall handrail, it is necessary to increase the size of the plate 58b of the fixture 58 in order to increase the support strength of the support column 52. In this case, the plate 58b is large and conspicuous, and the appearance is extremely poor. .

As a solution to the above-mentioned problem of the handrail, a handrail having a fixed structure without using the anchor bolt 66 or the plate 58b has been proposed. 9 and 10
In FIG. 7, the headless bolt 58b and the adhesive 7 are used instead of the anchor bolt 66 and the plate 58b.
5, the upper end of the bolt 58b is inserted into the hollow from the lower end surface of the core tube 58a fitted into the support body 53, and is fixed to the inner wall of the core tube 58a by welding.

A mounting hole 70 having a diameter slightly larger than the outer diameter of the bolt 58b is formed in the mounting surface 60 at a position where each support 52 is provided. The mounting hole 70 has an epoxy adhesive 75 in the mounting hole 70. , The lower end of the bolt 58b is inserted, and the adhesive 75 is cured. In the figure, 71
Is a socket for preventing rainwater from entering through a gap between the installation surface 60 and the lower end of the column body 53.

According to the above-mentioned fixing structure, the problem of cracking and appearance of concrete is solved, but the supporting column 52 is supported by the small outer diameter bolt 58b in contact with the inner wall of the core tube 58a, so that the supporting strength is sufficient. In particular, there is a problem that it cannot be applied to fixing a tall handrail.

The present invention has been made in view of the above problems, and can be installed even on a narrow installation surface, and has a good appearance that can be stably supported even with a tall handrail. Another object of the present invention is to provide a handrail having excellent strength.

[0010]

According to a first aspect of the present invention, there is provided a handrail vertically installed on a mounting surface having a predetermined width with lower ends of a plurality of columns buried in the mounting surface. Each of the above-mentioned posts has a hollow pillar main body, and a hollow core tube whose upper end is fitted into the hollow interior from the lower end surface of the pillar main body,
And a cap attached to the lower end of the core tube so as to close the opening of the lower end surface.The lower end of the core tube is inserted into the mounting hole opened on the installation surface, and the inner surface of the mounting hole is Each column is fixed with an adhesive interposed therebetween.

According to the second aspect of the present invention, the core tube has a rectangular cross section perpendicular to the length direction.

According to the third aspect of the present invention, an annular groove into which an adhesive is introduced is formed on an outer peripheral surface of a lower end portion of the core tube.

According to the fourth aspect of the present invention, a rib is formed integrally with the outer peripheral surface of the lower end portion of the core tube in the longitudinal direction.

[0014]

In the handrail according to the present invention, the support column main body is supported by the core tube, and the lower end surface of the core tube is supported in a mounting hole of the installation surface by being fixed with an adhesive.

In the handrail according to the second aspect, the cross section perpendicular to the longitudinal direction of the core tube is formed in a rectangular shape.
Even if a load in the direction perpendicular to the length direction of the core tube acts on the core tube, the core tube can sufficiently withstand the load as compared with a core tube having a circular cross section.

In the handrail according to the third aspect, the adhesive enters the annular groove formed on the outer peripheral surface of the core tube, so that the cured adhesive is prevented from falling out of the mounting hole of the core tube.

In the handrail according to the fourth aspect, since the rib is integrally formed on the outer peripheral surface of the lower end portion of the core tube in the length direction, a load in a direction perpendicular to the length direction of the core tube is applied. , The load applied to the concrete on the installation surface is dispersed due to the presence of the ribs, so that the concrete is prevented from cracking and can sufficiently withstand the load.

[0018]

FIG. 1 shows a handrail 1 according to an embodiment of the present invention.
The appearance of is shown. The handrail 1 in the illustrated example includes a plurality of pillars 2 vertically installed at equal intervals on a veranda installation surface 10, and each pillar 2.
And a lower beam 6 provided between the lower ends of the adjacent columns 2 in parallel with the lower frame 4, and a lower frame 4
And a plurality of standing lattices 5 arranged at equal intervals between the lower beam 6. The installation surface 10 is formed by raising the outer peripheral edge of the upper surface of the veranda to a predetermined height H with a width D of about 150 mm, and has a low slope inside in consideration of drainage.

As shown in FIGS. 2 and 3, each of the columns 2 includes a column main body 3 and a core tube 8 made of a stainless steel pipe. The column body 3 is a hollow body having a square rectangular cross section perpendicular to the length direction, and is formed by drawing out an aluminum material. On each of the four inner wall surfaces of the support body 3, two ridges 30 are formed over the entire length. The two ridges 30 on the inner wall surface facing each other face each other, and when the core tube 8 is inserted into the hollow interior of the column body 3, each ridge 30 comes into contact with the outer peripheral surface of the core tube 8 from all sides, and I support. The number and the width of the protrusions 30 formed on the inner wall surface of the column body 3 are appropriately set according to the shape and size of the core tube 8.

At the four corners of the inner surface of the column body 3, projecting portions 32 having screw holes 31 are formed over the entire length of the column body 3. Four screws for fixing the cap 4 to the upper end face are screwed into the upper end opening of the support body 3.

Each core tube 8 has a cylindrical shape, and a plurality of annular grooves 23 are formed on the outer peripheral surface at the lower end. A cap 9 is provided on the lower end surface of each core tube 8 to prevent an adhesive described later from flowing into the inside. The cap 9 is made of plastic and has a fitting portion 9 having a diameter matching the inner diameter of the core tube 8.
a and a pedestal portion 9 b having the same outer diameter as the outer diameter of the core tube 8. The lower end surface of the core tube 8 is formed by fitting the fitting portion 9 a into the hollow of the core tube 8. Is closing the opening.

The upper end of the core tube 8 is inserted into the hollow interior from the lower end surface of the column main body 3 and screwed with a screw 30 to integrate the column main body 3 with the core tube 8.

On the installation surface 10 of the veranda, a mounting hole 20 having an inner diameter larger than the outer diameter of the core tube 8 is provided in the vertical position of each column 2. Each of the mounting holes 20 is formed at a depth corresponding to the length of the core tube 8 protruding from the column main body 3. After flowing an appropriate amount of an epoxy-based adhesive 25 into each of the mounting holes 20, the core tube 8 is removed. Insert it near the bottom of the mounting hole 20. Since the opening at the lower end surface of the core tube 8 is closed by the cap 9, the adhesive 25 enters the gap between the mounting hole 20 and the core tube 8 and reaches the opening of the mounting hole 20. When the adhesive 25 hardens, the core tube 8 is firmly fixed to the mounting hole 20 of the installation surface 10. The adhesive 25 is applied to the annular groove 2 formed on the outer peripheral surface of the core tube 8.
3, the cured adhesive 25 functions to prevent the core tube 8 from coming out of the mounting hole 20.

Since a gap is formed between the lower end of the column body 3 and the upper surface of the installation surface 10, a socket 21 for closing the gap is provided at the lower end of the column body 3. The upper opening edge 27a of the socket 21 is in close contact with the outer peripheral surface of the column body 3, and the lower opening edge 27b is in close contact with the installation surface 10, so that the gap is closed. Corrosion of the tube 8 is prevented.

FIGS. 4 and 5 show a handrail 1 according to another embodiment of the present invention. The column body 3 of the handrail has a rectangular cross section perpendicular to the length direction, and the width d1 of one of the opposed wall surfaces 3a and 3c is the width d2 of the other opposed wall surfaces 3b and 3d. Greater than. On the inner surfaces of the wall surfaces 3a and 3c having a large width d1 of the support body 3, projecting portions 32 having screw holes 31 are provided over the entire length.
The books are integrally formed at the facing position. The opposing projecting portions 32 face each other, and when the core tube 8 is inserted into the hollow interior of the column body 3, each projecting portion 32 comes into contact with the outer peripheral surface of the core tube 8 and the core tube 8 is To support.

The core tube 8 also has a rectangular cross section perpendicular to the length direction. One opposing wall surface 8
The width t1 of each of the side walls 8a and 8c is larger than the width t2 of the other opposite side surface 8b and 8d.
Each of the protruding portions 32 of the column body 3 abuts on the outer surface of the column.

The core tube 8 has a lower end protruding from the lower end of the column body 3, and a pair of ribs 33 formed integrally on the outer peripheral surfaces of the wall surfaces 8a and 8c having a large width t1. The ribs 33 disperse the load applied to the concrete on the installation surface 10 when a load in a direction perpendicular to the length direction of the core pipe 8 acts on the core pipe 8 so as to prevent cracking of the concrete. Function. The outer circumferential surface of the lower end of the core tube 8 has a plurality of annular grooves 23 as in the first embodiment.
May be formed. A plastic cap 9 for preventing the adhesive from flowing into the inside is provided at the lower end surface of each core tube 8.
The cap 9 closes the opening at the lower end surface of the core tube 8.

The upper end of the core tube 8 is inserted into the hollow inside from the lower end surface of the column main body 3, and the column main body 3 and the core tube 8 are integrated by screws 30. The lower end of the core tube 8 is inserted into the installation surface 10 of the veranda and is near the bottom of the mounting hole 20 filled with the epoxy adhesive 25. In this case, the core tube 8 is inserted into the mounting hole 20 so that the wall surfaces 8a and 8c having the large width t1 are along the direction of the width D of the installation surface 10, and the rib 33 is provided with the width D of the installation surface 10. In a direction perpendicular to the direction of.

The opening at the lower end surface of the core tube 8 is closed by the cap 9, and the adhesive 25 enters the gap between the mounting hole 20 and the core tube 8 and reaches the opening of the mounting hole 20. Adhesive 25
When is cured, the core tube 8 is firmly fixed to the mounting hole 20 of the installation surface 10. Since the ribs 33 protrude from the outer peripheral surface of the core tube 8, the contact area of the core tube 8 with the adhesive 25 increases, and the cured adhesive 25 comes out of the mounting hole 20 of the core tube 8. Block.

A socket 21 for closing a gap between the lower end of the pillar body 3 and the upper surface of the installation surface 10 is provided at the lower end of the pillar body 3, and the gap is closed by this so that rainwater can enter. Corrosion of the core tube 8 due to this is prevented.

In the handrail 1 described above, the column main body 3 of each column 2 is supported by the core tube 8, and the lower end of the core tube 8 is fixed by the adhesive 25 in the mounting hole 20 of the installation surface 10. Each column 2 is firmly and stably supported on the installation surface 10.

[0032]

As described above, according to the present invention, the upper end of the core pipe whose opening at the lower end face is closed by the cap is fitted into the hollow interior from the lower end face of the column main body, and the lower end of this core pipe is installed. Inserted into the mounting hole of the surface, the adhesive is interposed between the inner surface of the mounting hole, and each column is fixed, so even on a narrow installation surface, the column can be installed vertically, Further, even a tall handrail can be stably supported. Further, unlike the conventional example, since anchor bolts and plates are not used for fixing the columns, cracks in concrete due to the anchor bolts and deterioration in appearance due to exposure of the plate are not caused.

According to the second aspect of the present invention, since the core tube has a rectangular cross section perpendicular to the length direction, the load resistance in the direction perpendicular to the length direction of the core tube is improved. Can increase.

According to the third aspect of the present invention, an annular groove is provided on the outer peripheral surface of the lower end of each core tube, and the adhesive is introduced into the annular groove. The core tube can be prevented from coming off.

According to the fourth aspect of the present invention, since the rib is integrally formed on the outer peripheral surface of the lower end portion of the core tube in the length direction, a load perpendicular to the length direction of the core tube is applied to the core tube. Even if it works,
Due to the presence of the ribs, the load applied to the concrete on the installation surface is dispersed, and the load resistance in the direction perpendicular to the length direction of the core pipe can be increased. In addition, since the contact area between the core tube and the adhesive is increased by the rib, there is also an effect that the core tube can be prevented from coming off from the mounting hole by the cured adhesive.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of a handrail according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway side view showing a handrail fixing structure.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a partially cutaway side view showing a fixing structure according to a second embodiment.

FIG. 5 is a sectional view taken along the line DD of FIG. 4;

FIG. 6 is a front view showing the appearance of a conventional handrail.

FIG. 7 is a partially cutaway side view showing the handrail fixing structure of FIG. 6;

FIG. 8 is a sectional view taken along line BB of FIG. 7;

FIG. 9 is a partially cutaway side view showing another conventional fixing structure of a handrail.

FIG. 10 is a sectional view taken along line CC of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Handrail 2 Prop 3 Prop main body 8 Core tube 9 Cap 10 Installation surface 20 Mounting hole 23 Annular groove 25 Adhesive 33 Rib

Claims (4)

[Claims] 1. A handrail vertically installed on a mounting surface having a predetermined width with lower ends of a plurality of pillars embedded in the mounting surface, wherein each of the pillars has a hollow inside. A support body, a hollow core tube having an upper end fitted into the hollow interior from a lower end surface of the support body, and a cap attached to a lower end of the core tube so as to close an opening of the lower end surface; A handrail in which the lower end of the core tube is inserted into the mounting hole formed in the above, and each of the columns is fixed with an adhesive interposed between the lower end and the inner surface of the mounting hole. 2. The handrail according to claim 1, wherein the core tube has a rectangular cross section perpendicular to the length direction. 3. An annular groove into which an adhesive is introduced is formed on an outer peripheral surface of a lower end portion of the core tube.
Handrail described in. 4. The handrail according to claim 1, wherein a rib is integrally formed on an outer peripheral surface of a lower end portion of the core tube in a length direction.