JP2023038879A - Anchor installing fixing tool - Google Patents

Abstract

To provide a fixing tool capable of ensuring waterproofness with an existing waterproof layer and facilitating waterproof construction during subsequent repairing in order to install a new anchor on the roof waterproof surface of a deck roof or the like.SOLUTION: A new anchor fixing tool has a dual structure of a fixed flange panel 10 to an old waterproof layer and a flange 20 for supporting an anchor. The fixed flange panel has a function for guaranteeing waterproofness with old waterproofness on an outer peripheral backside, and the flange for supporting the anchor has a removable structure and enables easy anchor recovery after waterproof construction during future waterproof repairing.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to an anchor installation fixture that is excellent in waterproofness and repairability for roof waterproof surfaces such as flat roofs.

On roofs such as flat roofs, installation of anchors in post-construction work is being considered, such as antenna support, solar power generation installation, snow guards, and safety supports in renovation work, which were not planned at the time of new construction. As for the anchors to be installed, there are disclosed cases in which the anchors are directly embedded in the frame and cases in which the anchors are installed and attached to the flange.

The method of laying anchors directly on the frame is often used in new construction, but in the case of installing it in the existing waterproof layer, as shown in Patent Document 1, it is very difficult to maintain the waterproof performance of the old waterproof part that has penetrated. Ingenuity is required. In addition, in the case where the anchor is fixed to the flange and installed, in order to prevent the load on the anchor from being applied to the mounting screw of the flange that is directly fixed, and to assist, It is necessary to install a jig that bears the load as shown.

In none of these cases is the approach to subsequent waterproofing modifications presented.

JP 2006-219822 JP 2011-58216

When trying to newly install an anchor on the existing flat roof roof waterproof surface, when trying to directly bury the anchor as shown in Patent Document 1, depending on the type of the existing waterproof layer and the number of years after construction, it is safe May not provide water resistance.

In recent years, waterproofing methods for flat roofs have increasingly come to have specifications in which a heat insulating layer is provided directly under the waterproof surface, as described in Patent Document 2, regardless of the material of the waterproof layer.In this case, direct burial of anchors is difficult. Therefore, it is necessary to fix the anchor to the flange shown in Patent Document 2 and set reinforcement for each thickness of the heat insulation layer for the installation screw, so excavation work to the existing waterproof layer is required. As a result, waterproofness may decrease.

Also, if the anchor installation request is an anchor for installing a solar power generation panel, there is a gap between the service life of the waterproof layer and the power generation expected of the solar power generation panel. Despite the need to repair the waterproof layer multiple times, it is very difficult to deal with it.

Therefore, when installing an anchor on a waterproof roof surface such as an existing flat roof, an anchor fixture that can be easily repaired while maintaining waterproof performance is desired.

The present invention consists of a flange member for fixing to the waterproof surface and a flange member for supporting the anchor, and on the upper surface of the flange for fixing to the waterproof surface, the flange for supporting the anchor and the member for fixing the same with nuts. of anchor bolts are installed. In addition, the flange that supports the anchor has a perforated portion at the corresponding location of the anchor bolt, and has a structure that allows it to be fixed with a nut.

The outer periphery of the back of the flange that is fixed to the waterproof surface has a space where an irregular adhesive is applied to maintain the waterproofness of the existing waterproof layer. part is applied and fixed. Further, the upper portion of the fixing screw on the upper surface of the flange is held by a standardized tape having a waterproof property, and is fixed by the flange holding the anchor.

According to the anchor fixing device according to the present invention described above, it is possible to maintain waterproofness by the waterproof layer on the roof surface where the new anchor is installed and the amorphous adhesive applied to the outer periphery of the back surface of the flange to be fixed. Therefore, even if there is a heat insulating layer directly under the waterproof layer, the load applied to the new flange can be borne by multiple screws that fasten the fixing flange to the frame.

When the existing waterproof layer reaches the end of its durable life, the flange that supports the anchor is removed, and a new waterproof layer is installed on the flange fixed to the waterproof surface to repair the waterproofing. Anchor restoration can be easily implemented after re-installation and waterproofing repair work.

1 is a cross-sectional view of an assembly of anchoring fixtures according to the present invention; FIG. 1 is an exploded perspective view of an anchoring fixture according to the present invention; FIG. FIG. 10 is a view of applying an irregular adhesive to the rear surface of a fixing flange laid on a waterproof surface; FIG. 4 is a cross-sectional view of an anchor restoration assembly after waterproof repair work with the anchor installation fixture according to the present invention; FIG. 12 is a perspective view of the fixing flange and assembly when the anchoring fixture is circular;

An embodiment of anchor installation of the present invention will be described below with reference to the drawings. In the following drawings, the same reference numerals are given to the same or similar parts. However, it should be noted that the drawings are schematic and the respective dimensions and ratios thereof may differ from the actual ones.

1 is a cross-sectional view of an embodiment of an anchoring fixture of the present invention; FIG. The flat roof roof structure to be installed is a cross-sectional view when the anchor installation fixture of the present invention is newly installed on the waterproof surface of the roof whose surface is the waterproof layer 300 having the structure of the heat insulating layer 200 on the RC frame 100. there is

The roof structure to which the present invention can be applied is not limited to the RC frame 100 shown in FIG. Moreover, the heat insulating layer 200 is not a condition for forming the frame. Asphalt, modified asphalt, rubber sheet, vinyl chloride sheet, olefin sheet, urethane coating film, etc. are also intended for the waterproof layer 300 .

The anchor installation fixture according to the present invention, as shown in the exploded perspective view of FIG. 2, comprises a flange 10 directly fixed to the roof waterproof surface and an anchor installation flange 20 fixed to the flange.

Both flanges shown in FIG. 2, anchor bolts 11 fixed to the flange 10, screws 30 used for mounting the flange 10, anchors 21 fixed to the flange 20 and nuts 40 used for mounting the flange 20, The washer 50 is desirably made of metal in terms of its function of retaining fixing strength and durability. Considering corrosion resistance in long-term use, these members shown in the embodiment are made of stainless steel. .

Anchor bolts 11 for fixing anchor installation flanges 20 are pre-fixed at two locations on the upper surface of the flange 10 fixed to the roof waterproof surface. Since the anchor bolts 11 are for ensuring the fixing strength with the anchor installation flange, it is desirable to fix them at two or more points regardless of the shape of the flange.

Also, in order to ensure the watertightness of the flange 10 with the roof waterproof surface to be installed, it is necessary to ensure the application range of the amorphous adhesive 60 on the back side of the outer peripheral portion of the flange shown in FIG. Therefore, holes 12 for fixing the frame and the flange are arranged inside the range, and fixing to the frame is carried out at the relevant portion. In the embodiment, four fixing perforations 12 were formed inside a 100 mm*200 mm flange with a short side of 35 mm and a long side of 60 mm from the outer periphery. Three or more points are preferable in order to secure the strength at the time of fixation, and the number of fixations can be increased to obtain high fixation strength.

The amorphous adhesive 60 shown in FIG. 3 needs to be appropriately selected according to the material of the roof waterproof surface 300 on which the flange 10 is installed. It is selected from silicone, modified silicone, elastic epoxy resin, urethane adhesive, and the like.

The fixing flange 10 is installed on the roof waterproof surface 300 by setting the flange 10 coated with the amorphous adhesive 60 on the outer periphery on the back side, centering on the position to be newly installed on the waterproof surface that has been washed with water, and fixing it. Mounting is performed using screws 30 for mounting. At this time, depending on the type of frame and the type of screws used, perforations are made in the frame side and fixed as necessary.

A tape-like standard water stop material 70 is laid on the screw head portion of the flange 10 fixed to the roof waterproof surface. A butyl tape, a chloroprene rubber tape, a nitrile rubber tape, or the like can be used as the tape-shaped regular waterproof material.

The flange 20 supporting the anchor 21 to be installed has holes 22 aligned with the positions of the anchor bolts 11 fixed to the flange 10 installed on the waterproof surface. 11 using a washer 50 and a nut 40, the target anchor can be installed on the waterproof surface.

The anchor installation flange 20 shown in FIG. 1 can be easily attached and detached by removing the fixing nut 40, and the anchor installation flange 20 can be removed even when repair work is required due to deterioration of the existing waterproof layer 300. It is possible to remove it and carry out new waterproof construction.

FIG. 4 shows a cross-sectional view of the installation when repair work is performed. By removing the flange 20 and selecting a construction method that can secure the waterproofness of the anchor bolt 11 portion installed on the flange 10, the anchor can be easily restored as shown in FIG.

The cross-sectional view shown in FIG. 4 shows the case of the PVC sheet insulation construction method constructed by the covering construction method without removing the old waterproof layer. This shows a case where a vinyl chloride covered disk 402 that has stopped water with a water material 403 is fixed to the flange 10 with screws, and a vinyl chloride waterproof sheet 400 is constructed and repaired.

In the above-described embodiment, the flange shape of the anchor fixture of the present invention was implemented as a rectangular shape, but this shape is not limited, and an example in which the anchor fixture is circular is shown in FIG.

The anchor fixture to the existing roof waterproof surface of the present invention has been described above with reference to the representative embodiments. However, the present invention is not limited to this embodiment only, and includes a method for maintaining watertightness between an existing waterproofing layer and the fixtures of the present invention, and a method for maintaining watertightness between a repaired waterproofing layer and the fixtures of the present invention. It should be noted that various methods are selected depending on the type of existing waterproofing and the type of waterproofing to be repaired.

10 Waterproof surface fixing flange 11 Anchor bolt 12 Hole 20 Anchor support flange 21 Anchor 22 Hole 30 Fixing screw 40 Nut 50 Washer 60 Irregular adhesive 70 Regular water stop material 100 Substrate 200 Heat insulating material 300 Old waterproof layer 400 Repair and new waterproof layer

Claims (4)

An anchor installation fixture having two metal flanges, a flange for installation on the old waterproof surface and a flange for supporting the anchor when installing the anchor on a waterproof roof surface such as a flat roof. The installation flange and the anchor support flange, which are installed on the frame with a plurality of fixing screws, are fixed on the old waterproof surface with the installation flange and removable metal anchor bolts and screws, according to claim 1. Anchor installation fixture as described. Claim 1, wherein an irregular adhesive that maintains waterproofness with the old waterproof layer is placed on the outer peripheral portion on the back side of the installation flange installed on the old waterproof surface, and a plurality of fixing screws are placed inside. 3. An anchor installation fixture according to 2. 4. The anchoring fixture according to any one of claims 1 to 3, wherein the anchoring fixture is made of stainless steel material with excellent corrosion resistance in outdoor exposure conditions.

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