JP3023601B2 - Handrail renovation method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handrail reforming method for renewing a wall-supporting steel handrail frequently used on a veranda or the like.

[0002]

2. Description of the Related Art As shown in FIG. 1, a wall-supporting steel (steel) handrail P mounted on an opening formed in a wall 1 serving as a concrete skeleton of a building has an opening formed in the wall 1. Side support members 3, 3 each formed of an angle are fixed to the walls 1, 1 on both sides of the section along the vertical direction, and the side support members 3, 3 as the upper frame of the handrail P and the side beams 7 as the lower frame are attached to the side support members. And are welded.

Conventionally, when such an existing handrail P is removed and retrofitted to a new handrail, the entire handrail is completely removed, and both side supporting members 3, 3 which are the basis of the handrail installation. Had also been removed.

[0004]

In the handrail P made of steel, since the armpit support members 3 are usually welded to the anchor 9 at three places, it is difficult to remove the armpit support members 3, 3. To remove it, it is necessary to attach the skeleton, so at the time of renovation, it may take time to repair the damage due to the hanging with mortar or spray painting after repair, which increases the cost and increases workability. There was a problem that the construction period was prolonged.

[0005] Especially when the new handrail is made of aluminum,
In order to provide a support for supporting the handrail separately, it was necessary to drill a hole for erecting the support for supporting the handrail in the concrete frame, making drilling of the hole difficult and extremely time-consuming. .

The present invention has been made in view of the above circumstances, and in the handrail reforming method, by utilizing the side support members 3 and 3 of the existing handrail P, the mounting workability is improved, and the time required for remodeling is improved. The aim is to shorten the time.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a side support member made of a long angled steel material fixed by anchors to a side wall of an opening formed in a wall of a concrete skeleton. And, at both ends of the existing handrail consisting of a sash and side girders fixed to the side support members, cut off the sash and side girders at both ends, leaving the side support members and removing them, and the opening is made of aluminum. In the handrail renovation method of installing a new handrail, a vertical reinforcing member made of angle steel is fixed to the vertical frame of the new handrail assembled with the upper and lower frames, the left and right vertical frames, and the handrail in advance to form the new handrail. A handrail reforming method of attaching a new handrail by fixing the vertical reinforcing member to the remaining side support member.

In the above handrail reforming method, the surface cover 26 and the small lid 3 for sealing the side surface and the upper surface between the wall of the concrete frame and the vertical frame of the new handrail, respectively.
1 is provided.

[0009]

[Function] Since the handrail reforming method is configured as described above, the existing handrail can be removed by a very simple work of cutting the cap and the side beam at both ends. There is no need for any work such as stripping.

[0010] Since the existing side support members are strongly fixed to the wall of the concrete skeleton by anchor welding, if a new handrail is installed as a foundation while remaining this, the vertical side frame of the new handrail previously assembled is attached. Since the vertical reinforcing member is fixed, even if the new handrail is an aluminum handrail,
Easy and powerful installation.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.
It will be described based on. As described above, the existing steel (steel) handrail P is used for the wall 1 as a concrete frame.
The long side support members 3, 3 at both ends are fixed by welding to the side walls of the opening, that is, anchors 9 embedded in the wall 1. As will be described in detail below, when removing the existing handrail P, as shown in FIGS. 2 and 3, the side support members 3, 3 are left for reuse, and as shown in FIG. A new handrail R made of aluminum is installed on the basis of the members 3 and 3.

When removing the existing handrail P, as shown in FIG. 2 and FIG. 3, the coping 5 and the side beam 7 are simply cut at both ends. Then, the upper and lower ends of the armpit support member 3
The cut ends 11 and 13 of the cap 5 and the side beam 7 remain. In the case of this embodiment, this is not particularly used, but is left as it is. However, it is also possible to make effective use of the shape. In addition, since the shed 5 and the side spar 7 were made of a groove-shaped steel material with an open bottom surface, the cut ends 11,
13 has its cross section exposed. The side support members 3 include:
Since the angle steel material is used, and the side support members 3 are welded to the anchors buried in the wall 1, the strength is effectively used.

The new handrail R is composed of an upper frame 15 as a coping,
Handrails 21 and 22 are provided on a lower frame 17 as a side girder and a frame 17 which is framed by left and right vertical frames 19 and 19 and is an upper frame 15.
Are connected. Elongated vertical reinforcing members 23, 23 made of angle steel are fixed to both vertical frames 19.19, each of which is made of extruded aluminum, and assembly is performed in this state at a factory. Then, at the site, the vertical reinforcing members 23, 23 are screwed to the side support members 3 and installed. Then, as described later, the side cover member 3 and the vertical reinforcing member
The small palate is blindfolded.

The vertical frame 19 of the new handrail is formed in a rectangular hollow narrow to the left and right in order to fix and reinforce the vertical reinforcing member 23 made of steel. In order to stop, a storage part 27 for rotatably holding the nut 25 is provided at the center (FIG. 6). Also, face covers 2
Engagement grooves 29 are formed in the outer corners, and screw pockets 32 are formed at both outer corners for screwing a small lid 31 provided at the upper end.

The upright piece of the vertical reinforcing member 23 made of an angle steel material projects perpendicularly from the vertical frame 19, and a hole for passing the bolt 33 is formed therein. A hole in the armpit support member 3 in accordance with
Tighten with bolts 33 and nuts 34. When performing this tightening, the contact member 37 whose tip is inverted and bent in a U-shape.
Are attached together with the bolts 33 and nuts 34. One end of the surface cover 26 is screwed to the abutment member 37, and the indoor side surface is attached to the base piece of the side support member 3. The contact member 39 of the cover 26 is screwed.

The face covers 26, 26 are bent inward such that one end thereof is received by the contact members 37, 39, and a caulking material for filling the space between the wall 1 and the vertical frame 19 at the inward portion. 41 is filled. A screw pocket 43 for screwing the small palate 31 is formed in the front covers 26, 26, and the small palate 31 is fixed to the vertical frame 19 and the double-sided covers 26, 26 with screws 45 (see FIG. 6). Thus, as shown in FIGS. 6 and 7, the face cover 26 and the small palate 31 are provided so as to seal the side surface and the upper surface between the wall 1 and the vertical frame 19. As a result, even if the vertical frame 19 is thin, which is advantageous in terms of cost, it appears that there are thick struts, both of which are part, at both ends.

Regarding the framework of the new handrail R, the vertical frame 19
The upper frame 15 and the lower frame 17 are brought into contact with each other (see FIG. 5).
Are screwed using an L-shaped connection fitting 47, and the lower frame 17 is screwed using a U-shaped connection fitting 49, respectively. Also, the upper frame 15 and the lower frame 17 have a handrail 2
Attachments 51, 53 for screwing 1, 21,... Are assembled, and end caps 55, 55 made of synthetic resin are fitted to the ends of the upper frame 15. Further, since the new handrail is made of aluminum, the lower frame 17 is supported by the frame with the bundled metal members 57.

[0018]

According to the present invention, since the supporting members on both sides of the existing handrail are left as they are, it is possible to eliminate the trouble of peeling the concrete wall and repairing the damage with mortar, and Since the vertical reinforcing member fixed to the pre-assembled new handrail is fixed to the armpit support member, the new handrail can be strongly installed based on the armpit support member, and the workability at the time of remodeling is facilitated, and Shortening can be achieved.

A surface cover 2 for sealing the side surface and the upper surface between the concrete frame wall and the vertical frame of the new handrail, respectively.
6 and the small palate 31, the vertical reinforcing member and the side supporting members inside the face cover and the small palate become invisible, and the appearance is improved in appearance.

[Brief description of the drawings]

FIG. 1 is a front view of an existing handrail.

FIG. 2 is a front view showing a state in which an existing handrail is removed.

FIG. 3 is an enlarged perspective view of a portion A in FIG. 2;

FIG. 4 is a front view of a renovated new handrail.

FIG. 5 is an enlarged sectional view taken along line BB of FIG. 4;

FIG. 6 is an enlarged cross-sectional view taken along line CC of FIG. 4;

FIG. 7 is an enlarged plan view of the new handrail of FIG. 4 as viewed from above.

[Explanation of symbols]

P Existing handrail R New handrail 1 Body wall 3 Side support member 5 Kasagi 7 Side girder 9 Anchor 11, 13 Kasagi, cut end of side girder 15 Upper frame 17 Lower frame 19 Vertical frame 21 Handrail 23 Vertical reinforcing member 26 Cover 31 small palate

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04G 23/02 E04F 11/18

Claims (2)

(57) [Claims] A side support member made of a long angle steel material fixed by an anchor to a side wall of an opening formed in a wall of a concrete skeleton, and a cap and a side beam fixed to the side support member. At the both ends of the existing handrail, cut the sash and the side beam, leave the side support members and remove it, and in the handrail reforming method of installing a new aluminum handrail in the opening, use the upper and lower frames in advance. A vertical reinforcing member made of an angle steel material is fixed to the vertical frame of the new handrail assembled with the vertical frame and the handrail to form a new handrail, and the vertical reinforcing member is fixed to the remaining side support member. A handrail renovation method characterized by attaching a new handrail. 2. The handrail reforming method according to claim 1, further comprising providing a face cover and a small lid 31 for sealing a side face and an upper face, respectively, between the wall of the concrete frame and the vertical frame of the new handrail.