JPH0417718Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial field of application) This invention relates to a support used when installing a handrail support post A on a rooftop, and is applied to each layer of base mortar B, waterproof sheet C, rooftop floor wall D, etc. The concrete of the rooftop floor wall B is relatively thin and weak in strength, and a waterproof sheet C is applied to the lower layer. In order to prevent leakage, etc., a wide and long anchor base with a fixing hole is installed in the upper or lower layer of the rooftop floor wall D, and the roof floor wall D is fixed.
This relates to an anchor base for a rooftop handrail, in which a handrail post A, a support rod, etc. can be adjustably fixed to attachment holes of an upwardly protruding support plate and an inclined plate.

(Prior art) When installing a handrail post A on the roof of a multi-story house such as a building, generally, as shown in Fig. 7, a waterproof sheet C is applied to the base mortar B to make it waterproof. A handrail post A is temporarily stood upright on the upper surface of the rooftop floor wall D, which has been finished with mortar, and a concrete block E is cast around the handrail post A using a form, and the concrete block is hardened and erected. The handrail post A is supported by a support rod or the like. In addition, as shown in Fig. 8, an L-shaped reinforcing bar support F is placed on the base mortar B, and a handrail support is attached to the support F1 protruding from the upper part of the rooftop floor wall D which has been waterproofed and finished with mortar. A
Alternatively, as shown in Fig. 9, the four legs of anchor bolts G welded to the mounting base G1 are placed on top of the waterproof sheet C and the mounting base G1 is fixed.
A method is used in which the handrail post A is fitted into the notch G2 of the mounting base G1 by protruding from the upper surface of the roof floor wall D finished with mortar, and a block of concrete E is cast around it to secure the base and erect it. It is being

(Problem to be solved by the invention) In the former case of such a structure, the handrail support A is erected on the top of the roof floor wall D as shown in Fig. 7,
The roof floor wall D, which will be erected by the concrete mass E that secures the handrail support A, is already constructed.
Because of the poor bonding strength between the concrete and the concrete mass E that was later consolidated, the concrete mass E that is consolidated has poor adhesion to the roof floor wall D, and the supporting force of the handrail support column A is weak in terms of strength. Becomes unstable. In addition, in the latter case, an existing round bar reinforcing bar support F protrudes from the mortar-finished rooftop floor wall D related to the base mortar B and the waterproof sheet C, but this supports the handrail support A. Therefore, if the handrail support A is welded to the reinforcing bar support F with a large difference in positional deviation between the center points of the handrail support A, the support strength will be reduced because the handrail support A is deviated from the fulcrum. There was a problem in that the reinforcing steel supports F were shaken by an earthquake, causing cracks in the waterproof sheet C, roof floor wall D, etc., resulting in rain leakage. In addition, in the case of the mounting base 1 placed on the waterproof sheet C and projected onto the rooftop floor wall D, the place where the husband of the anchor bolt G is placed is located on the waterproof sheet C, and the strength is not so strong. Since the anchor bolt G is located inside the roof floor wall D, which is not strong, the mounting base G1 is vulnerable to vertical vibration accidents, and therefore the roof floor wall D is not strong.
There were also problems such as easy cracking between the waterproof sheet C and the waterproof sheet C. Furthermore, since the rooftop floor wall D always has a slight slope, in the former and latter cases, structural considerations such as adjusting the height difference of the husband's handrail support A erected on the rooftop floor wall D are required. Because this was not done, there was a problem that it took too much time to make tedious adjustments to keep the height constant.

(Means for Solving the Problems) In view of the above-mentioned viewpoint, this invention has a support plate having a large number of mounting holes when erecting and supporting the handrail post A, and an inclined plate at both ends. The embedded board has an oval-shaped fixing hole drilled in the provided flat plate, and the embedded board is buried in the lower layer of the rooftop floor wall C, or the fixing hole of the embedded board is placed on the top surface of the rooftop floor wall C. By fixing it to the existing reinforcing bar support F, construction can be carried out without disturbing the roof floor wall C surface or the waterproof sheet C on the lower surface, and the handrail support post A can be installed at a later date. Support plates are used to prevent cracks in the concrete and cracks in the waterproof sheet C from occurring, and to simplify the height of the pillars so that they can be fixed uniformly when a plurality of handrail pillars A are erected. To provide an anchor base for a rooftop handrail, which is adjustable by drilling a large number of mounting holes in the roof, and which allows a handrail post A erected at the top to be easily supported through a support rod in the mounting hole of an inclined plate. There is a particular thing.

(Embodiment) Hereinafter, an embodiment of the present invention will be described based on the drawings. In the present invention, as shown in FIG. , 2... are drilled in the upper and lower rows, alternating from the left side to the right side. Then, one end of the embedded board 1 with an elliptical fixing hole 2 was bent upward to stand upright, and a large number of small mounting holes 3, 3... were drilled at appropriate locations through both sides. A small mounting hole 5, 5 which forms a support plate 4 for fixing the handrail, has an appropriate slope with the other end bent inward, and penetrates through both sides.
. . . is formed by forming an inclined plate 6 that supports a handrail with a large number of holes drilled at appropriate locations.

The present invention has the configuration as described above, and this rooftop handrail anchor base is attached to the rooftop floor wall D as shown in Figure 3.
After fitting the elliptical fixing hole 2 drilled in the embedded board 1 of the proposed project into the support part F1 of the existing reinforcing bar support F that remained after the old handrail was removed, and abutting the inner edges. Weld and secure. In this case, the fixing hole 2 of the embedded board 1 is shaped like an ellipse so that the fixing hole 2 is in the required position when the husband's support column A is erected.
The end edge of the support part F1 is placed on the existing support part F1, and the support part F1 is selected and welded to the appropriate position.
Attach the handrail support A to the appropriate mounting hole 3 of the support plate 4 of the proposed anchor base fixed to the rooftop floor wall D in this way.
are screwed together with bolts 10 and nuts 11 and fixed by tightening, and are erected. On the other hand, the support ring 7a provided at one end of the support rod 7 is attached to the support ring A1 of the handrail post A that is erected.
are overlapped and fixed by screwing and tightening with bolts 12 and nuts 13, and the support ring 7b at the other end
The mounting holes 5 are overlapped with each other at appropriate positions in the mounting holes 5 formed in the inclined plate 6, and screwed together with bolts 14 and nuts 15 and secured by tightening. However, if the handrail support A is reinforced with foot protection and the support A is erected on the roof floor wall D, the support part of the reinforcing bar support F protruding from the roof floor wall D as shown in The edge of the elliptical fixing hole 2a of the embedded board 1a is fitted to F1, and the supporting part F1 is fixed by welding, and the handrail support is inserted into the appropriate mounting hole 3a of the support plate 4a of the anchor base. A to bolt 16, nut 17
They are screwed together and tightened to stand upright. In addition, if necessary, it will be installed by hardening it with concrete blocks E.

The above example relates to the renovation work of handrail support A.
This is shown as an example in which a rooftop handrail anchor base of the present invention is installed on a rooftop floor wall D via an existing reinforcing bar support F, and a new handrail post A is erected. Next, the anchor base for the proposed rooftop handrail is buried inside from the top surface of the rooftop floor wall D, and the handrail support post A is installed.
As shown in FIGS. 5 and 6, the embedded substrate 1 or the embedded substrate 1a is placed slightly inside the surface layer of the roof floor wall D. The embedded substrate 1 or the embedded substrate 1a and the oval shaped husband fixing holes 2, 2a drilled therein are poured with concrete and buried in the rooftop floor wall D, and the rooftop floor is In the case of the embedded substrate 1, the support plate 4 and the inclined plate 6 protrude from the upper surface of the wall D, but in the case of the embedded substrate 1a, only the support plate 4a protrudes from the upper surface. The embedded board 1 or the embedded board 1a embedded in the roof floor wall D in this way can be equipped with the handrail support A and the support rod 7 in the same manner as described above.

However, in addition to this case, it is also possible to install the embedded substrate 1 or the embedded substrate 1a on the top of the waterproof sheet C, pour concrete, and install the support plate 4 and the inclined plate 6 or the support plate on the top of the roof floor wall D. It can be constructed by making the board 4a protrude and be equipped with the handrail support A as described above.

(Effects) This invention has the above-mentioned configuration and can be expected to have the following effects.

That is, since the anchor base for a rooftop handrail of the present invention has a flat embedded board and a large number of oval fixing holes, it can be easily and sturdily installed on the rooftop floor wall by using the existing support part. In addition, since the wide embedded board is firmly embedded with concrete in the roof floor wall along with the fixing hole, the handrail support that is fixed to the support board and erected has increased support strength, making it a safe handrail support. is obtained. Further, since the support plate and the inclined plate are wide and fixed at both ends with bending and tied to the base portion, they are strong against vibrations and the waterproof sheet does not cause cracks, so there is no problem such as leakage of rainwater.
Also, since the support plate is wide and has many mounting holes,
When the husband's handrail post is erected, it can be easily adjusted up and down, and the handrail post can be adjusted and firmly held through the support rods in the numerous mounting holes of the inclined plate, so it can be easily attached to the support plate. The handrail supports stubbornly maintain their vertical position and can withstand accidents such as earthquakes, strong winds, and freezing.

[Brief explanation of the drawing]

Figures 1 and 2 are perspective views of the present invention, Figures 3 and 4 are operation explanatory diagrams showing an example of construction on the upper part of the roof floor wall, and Figures 5 and 6 are construction examples inside the roof floor wall. FIG. 7 is a schematic diagram showing a conventional handrail support structure; FIGS. 8 and 9 are schematic cross-sectional views showing a conventional handrail support support structure; FIG. 1...Embedded board, 1a...Embedded board, 2...Fixing hole, 2a...Fixing hole, 3...Mounting hole, 3a...
Mounting hole, 4...Support plate, 4a...Support plate, 5...
Mounting hole, 6... Inclined plate, 8... Inclined plate.

Claims (1)

[Claims for Utility Model Registration] 1. In the longitudinal direction of the embedded board, from the left side to the right side, fixing holes of a horizontally elongated oval shape and a vertically elongated oval shape are alternately bored in the upper row and the lower row. At the same time, one end of the embedded board is bent upward, and a fixing plate for the handrail is provided with a large number of small mounting holes penetrating through both sides at this proper location, and the other end is bent inward. This anchor base for a rooftop handrail is provided with an inclined plate for supporting a handrail, which is bent in a direction, has an appropriate inclination, and has a large number of small mounting holes penetrating through both sides at appropriate positions. 2. The anchor base for a rooftop handrail according to claim 1, wherein the embedded board has a short width in the longitudinal direction of the board, and the inclined plate has a short width between the slopes.