JPS63226449A - Apparatus for directly mounting handrail support by concrete - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is directed to the direct attachment of handrail supports to concrete, such as those on rooftops of buildings (including similar structures), corridors, etc. Regarding equipment.

(Background technology) Conventionally, in order to erect and fix a handrail post on ':I concrete, a post holder is used, this post holder is fastened to the upper surface of the concrete with an anchor bolt, the lower end of the post is inserted into this, and then It is supposed to be fastened with bolts and nuts.

However, in this case, since an anchor bolt is used, a thick fixing piece has to protrude around the holder, and in order to ensure fixing strength, the insertion depth is relatively large.
Therefore, it is inevitable that this holder be made of cast metal or the like and be large and thick, which impairs the appearance and increases the cost.

(Object of the Invention) The present invention has been made in view of the shortcomings of the conventional handrail support erecting and fixing device. The purpose of the present invention is to provide a method for directly attaching handrail supports to concrete that can be firmly fixed.

(Structure of the Invention) In accordance with the above-mentioned object, the present invention is such that a long-length penetration tightening port is fixed upright to a concrete anchor, and a handrail support column is integrally tightened and fixed by this tightening port. That is, 1 the present invention embeds and fixes a concrete anchor in the upper surface of building concrete, and at the same time fixes a long tightening port upright to the anchor, and at the lower part of the tightening port, the fitting is crimped to the upper surface of the concrete by tightening a lower nut. The lower end of the handrail support is fitted into the member, and at the upper part of the tightening port, the upper part is attached to the upper surface of the handrail cap hanging horizontally in the handrail support opening or the horizontal member fixed to this.
The gist of this invention is a device for directly attaching a handrail support to concrete, which is characterized in that the handrail support is integrally tightened and fixed to the upper surface of the concrete using a long tightening bolt that can penetrate through the inside of the handrail support. be.

The present invention will be described below with reference to drawings showing embodiments.
In Fig. 1, reference numeral 1 denotes a handrail made of extruded aluminum alloy material, and this handrail 1 has a plurality of pillars 2 each having a circular cross section and a pipe-like shape, and a handrail cap 4 is constructed and fixed in a horizontal structure at the upper end between these pillars 2. It is a so-called pipe handrail with a height of about 30 to 50 m.

This handrail 1 is directly attached to the top of the concrete JJ5. That is, for the concrete wall 8.

The concrete anchor 9 is buried and fixed, and the upper opening 10 of this concrete anchor 9 is provided with a female threaded portion, and the lower end male threaded portion 12 of the tightening port 11 is provided in this opening 10.
are fastened with screws, and this tightening port 11 is fixed upright on the concrete wall 8.

The tightening port 11 is made of steel, and is a long one with male threads carved into the upper and lower parts of the bolt.
A slightly longer one is used.

At the bottom of the tightening bolt 11, a disc-shaped thick-walled steel plate or aluminum alloy fitting member 13 is placed on the concrete wall 8, and the position of the fitting member 13 is adjusted using a long hole in the center thereof. A lower nut 14 passes through the tightening bolt 11 and is screwed onto the lower threaded portion of the lower nut 14.
is fastened to the upper surface of the fitting member 13 via the washer 15, and thus the fitting member 13 is crimped to the upper surface of the concrete wall 8.

A handrail support 2 is fitted into the fitting member 13 at its lower end, and the handrail support 2 is bent so as to be in contact with the upper surface of the concrete wall 8.

The tightening port 11 is housed inside the handrail post 2 and extends upward through it.

On the other hand, the opening at the upper end of the handrail post 2 has an arc-shaped notch along the length of the handrail 1, and the upper part of the notch 3 is horizontally supported by the split circular base plate 5 of the handrail cap 4. Also,
This substrate 5 is integrally provided in the longitudinal direction with a thick reinforcing portion 7 whose upper surface is flat and horizontal. The tightening port 11 has its threaded portion protruding above the board 5 through the through hole of the thick reinforcing portion 7.

At the upper part of the tightening port 11, an upper nut 16 is fastened to the threaded portion protruding onto the base plate 5 via a washer 17, and presses the thick reinforcing portion 7.

In this way, one handrail support post 2 is integrally tightened and fixed to the upper surface of the concrete.

In addition, 6 in the figure is the main body of the handrail kasagi, which is structured like a cover.
It is fitted onto the Kasagi base 5.

Further, FIG. 2 shows a case where a handrail support post 2 having a substantially rectangular cross section is used, and a horizontal member 18 is used at the top thereof. That is, the horizontal member 18 is provided with mounting tongues 19° 19 at both ends in the longitudinal direction of the handrail cap 4, has a fitting protrusion 20 protruding downward in the center, and has a concave portion 21 on its upper surface.
It is assumed that one handrail support post 2 is horizontally suspended in a fitted manner at the upper end opening.

In this case, the tightening port 11 reaches into the recessed part 21 through the through hole provided in this fitting protrusion, and as in FIG. The handrail support 2 is integrally tightened and fixed to the concrete wall soil by tightening the handrail support 2 at the top.

In FIG. 2, reference numeral 22 in FIG. 1 indicates a screw for fixing the handrail cap 4, and reference numeral 23 indicates a screw that is screwed into the tapping hole 24 inside the handrail column 2 to fix the horizontal member 18.

The tightening port used in the present invention may of course have a male threaded portion along its entire length, but as shown in the above embodiment, it is sufficient to provide this at the upper and lower portions. In addition, instead of being provided as a single piece, it may be possible to use one connected in the middle so that it can be applied to the height of one handrail support.

The tightening port can be fixed to the concrete anchor by the above-mentioned screw fastening or welding, but it is better to use these in combination.

Furthermore, although the shape of the handrail post does not matter, the fitting member that fits at the lower end may be fitted internally, externally, or grooved depending on the shape, and is limited to a flat plate. There's no need.

Furthermore, a separate block-like object may be installed at the upper nut fastening part of the handrail cap, and depending on the shape of the horizontal member, additional reinforcement such as a plate may be applied separately. You can also do it.

As described above, the present invention is not limited to the above-described embodiments, but may include the specific shapes and structures of concrete anchors, tightening bolts, etc., as long as they do not contradict the spirit of the invention.

It can be seen from the above that materials and other parts can be added, the order of steps, etc. can be changed in various ways.

(Effects of the Invention) The present invention embeds and fixes a concrete anchor in the upper surface of building concrete, and fixes a long tensioning port upright to this anchor, and uses this tightening port that can penetrate inside the handrail support to secure the handrail support to the upper surface of the concrete. Since it is integrally tightened and fixed, the horizontal load resistance is significantly improved compared to the conventional holder that fixes the lower end of the column, and the necessary and sufficient handrail fixing strength can be obtained.

In addition, at the bottom of the tightening port, the lower end of the handrail post is fitted to the fitting member that is crimped to the top surface of the concrete by tightening the lower nut, which prevents the handrail post from twisting or shifting. Horizontal loads can be received on the surface. Due to this fitting, the fitting member is not exposed below the handrail support column, or even if it is exposed, it is only slightly exposed, so that the appearance is not impaired.

Furthermore, at the top of the tightening port, the upper nut is tightened to the top surface of the handrail cap hanging horizontally at the handrail support opening or to the horizontal member fixed to this, so the tightening force to the handrail support is evenly distributed. Easy to tighten and secure long-term stable handrail support tightening and fixing.

[Brief explanation of drawings]

The drawings show examples, and Fig. 1 is a partially cutaway vertical cross-sectional view of the case where a handrail shade tree is used at the upper part of the tightening port, and Fig. 2 is a partially cutaway longitudinal sectional view of the case where a horizontal frame member is also used. A cutaway front view.

Claims (1)

[Claims] A concrete anchor is buried and fixed in the upper surface of the concrete of the building, and a long tightening bolt is fixed upright to the anchor, and at the bottom of the tightening bolt, the lower end of the handrail support is attached to the fitting member that is crimped to the upper surface of the concrete by tightening the lower nut. At the top of the tightening bolt, tighten the upper nut to the upper surface of the handrail cap horizontally suspended in the handrail support opening or the horizontal member fixed to this, and attach a long tightening bolt that passes through the inside of the handrail support. A device for directly attaching a handrail post to concrete, characterized in that the handrail post is integrally tightened and fixed to the upper surface of the concrete.