JP6021102B2 - Fixing installation method - Google Patents

Description

The present invention provides a waterproof base provided with a board layer (for example, a heat insulating board or a fireproof board) on the front surface side and a fixing layer (for example, an ALC board or a concrete board) on the back surface, on the board layer. It relates to a fixture installation method for attaching a fastener for securing a waterproof sheet disposed.

There are a plurality of methods for fixing the waterproof sheet disposed on the waterproof base, and one of them is a disk-shaped fixing bracket 3 as shown in FIG. There is a method of fixing by fixing the lower surface of the waterproof sheet S to the upper surface of the fixing metal 3 in advance.
At this time, as a conventional method of installing the fixing screw member 20 on the waterproof base 1, a fixing hole 21 is previously formed in the fixing layer 1B through the board layer 1A from above the waterproof base 1, and this hole. The resin anchor 22 is inserted into the resin anchor 22, and the fixing screw member 20 composed of a male screw member is screwed into the resin anchor 22, thereby expanding the diameter of the resin anchor 22 and surrounding wall 21 a of the hole 21. There is a method of fixing the fixing screw member 20 by a frictional force between the outer peripheral surface of the resin anchor 22 and the resin anchor 22 (see, for example, Patent Document 1).
However, in this method, when the resin anchor 22 stops at a shallow position when the resin anchor 22 is inserted into the hole 21, the outer periphery of the resin anchor 22 is attached to the board layer 1A on the surface side even if the diameter is expanded by the fixing screw member 20. Since the surface is pressed and the board layer 1A having a large deformation cannot obtain a sufficient fixing force, the resin anchor 22 has been devised so that the resin anchor 22 can be surely inserted up to the fixing layer 1B.

Japanese Patent Laying-Open No. 2006-161373 (FIG. 5)

According to the conventional fixing screw member installation method described above, the resin anchor can be inserted into the fixing layer, but the resin anchor is pulled out along the spiral of the screw of the fixing screw member with the subsequent screwing of the fixing screw member. There is a possibility that the fixing layer does not have a sufficient fixing force when moving to the board layer.
That is, as the fixing screw member is rotated while being pressed against the resin anchor, the screwing of the fixing screw member and the resin anchor deepens, and the resin anchors are sufficiently expanded. In the stage before diameter, the frictional force with the peripheral wall of the hole may be small, and the rotational force of the fixing screw member may act as lift from the screw helix to the resin anchor. There is a risk of fixing in the state of being pulled out from the fixing layer to the board layer.

Accordingly, an object of the present invention is to provide a fixing device installation method capable of solving the above-described problems and reliably fixing the fixing screw member to the fixing layer.

The first characteristic feature of the present invention, the waterproof underlayer having a fixing layer on the lower side provided with a board layer on the upper side, a fixture for fixing the waterproof sheet on the board layer, screwed to each other A fixing device installation method for attaching with a fixing screw member composed of a free male screw member and a fixing female screw member ,
The universal insertion hole inserts prior Symbol fixing female screw member, and the hole forming step of forming the waterproof underlayer, and adhesive filling step of placing an adhesive for fixing into said insertion hole, larger than said insertion hole the lower portion of the hanging support member having a flange portion of diameter, in a state of attaching the fixing female screw member, before said adhesive material is cured, by inserting the fixing female screw member into the insertion hole the insertion step that sank the fixing female screw member to the adhesive, a fixing step of fixing the fixing layer while the fixing female screw member by said hanging support member suspended supported at a predetermined depth, said fixing Removing the suspension support member from the fixing female screw member fixed to the layer, removing the suspension support member from the insertion hole, and fixing the fixing layer to the fixing layer by inserting a male screw member into the insertion hole Screwed into the fixing female screw member, the front The fixture is in place with a, a mounting step of mounting onto the board layer.

According to the first characteristic configuration of the present invention, by inserting an adhesive into the insertion hole formed in the waterproof base, the fixing female screw member is submerged in a state of being supported by the suspension support member, and fixed to the fixing layer. The fixing female screw member that secures the fixing reaction force as the fixing screw member can be reliably fixed to the fixing layer.
That is, since the fixing female screw member is suspended and supported by the suspension support member, the fixing female screw member can be positioned at a predetermined depth in the insertion hole, and can be securely fixed by the adhesive while maintaining the state. Therefore, even when the depth of the insertion hole becomes deeper than a predetermined value, the predetermined depth is maintained while preventing the fixing female screw member from falling into the hole by the suspension support member. Drilling depth management can be performed roughly in the hole forming operation, and construction management can be simplified.
Further, since the male screw member can be screwed to the fixing female screw member fixed at a predetermined depth of the fixing layer, the waterproof sheet disposed on the board layer is connected to the male screw member and the fixing female screw. It is possible to reliably fix the fixing layer in a state in which a fixing reaction force is secured via the member.
Further, since the male screw member can be freely attached to and detached from the fixing female screw member securely fixed to the fixing layer, for example, when the waterproof sheet is to be repaired, the fixing female screw member is changed from the fixing female screw member to the male screw. By simply removing the member, it is possible to easily release the waterproof sheet. Furthermore, the fixing female screw member that has been fixed can be reused as it is as a male screw member for fixing a new waterproof sheet, and can be waterproofed more easily and economically. The seat can be modified.

According to a second characteristic configuration of the present invention, in the insertion step, before the fixing female screw member is inserted into the insertion hole, the adhesive material is prevented from entering the female screw portion of the fixing female screw member. the sealing member is in place before and Symbol hanging support member preferably provided over said fixing female screw member.

According to the second characteristic configuration of the present invention, the seal material is provided over the suspension support member and the fixing female screw member before the suspension support member and the fixing female screw member are submerged in the insertion hole. It is possible to prevent the adhesive material put in the hole from entering the female screw portion from between the suspension support member and the fixing female screw member.
As a result, the suspension support member and the fixing female screw member are bonded to each other with an adhesive, and the problem that it is difficult to remove can be prevented in advance, or the adhesive is solidified in the female screw portion and obstructs the screwing of the male screw member. Can be prevented in advance.
Therefore, the suspension support member and the male screw member can be smoothly and efficiently attached to and detached from the fixing female screw member.

  According to a third characteristic configuration of the present invention, the suspension support member is the male screw member.

  According to the third characteristic configuration of the present invention, after fixing the fixing female screw member to the fixing layer with the adhesive, the trouble of replacing the suspension support member with the male screw member can be saved, and the installation efficiency of the fixing screw member can be reduced. improves.

Perspective view showing the laying situation of the waterproof sheet Sectional view showing the laying situation of the waterproof sheet Sectional view showing installation method Sectional drawing which shows the fixing screw member installation method of another embodiment Sectional drawing which shows the fixing screw member installation method of another embodiment Sectional drawing which shows the fixing screw member installation method of another embodiment Sectional drawing which shows the conventional fixing screw member installation method

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the parts indicated by the same reference numerals as those in the conventional example indicate the same or corresponding parts.

  1 and 2 show a portion of a flat roof R where a waterproof sheet S is installed using a fixing screw member 2 fixed to a waterproof base 1 according to one method of installing the fixing screw member of the present invention. Yes.

The waterproof sheet S is formed of a waterproof synthetic resin sheet (for example, soft vinyl chloride), and uses disk-shaped fixing brackets 3 installed in a scattered manner on the waterproof base 1. Is fixed.
Specifically, the fixing bracket 3 is fixed to the waterproof base 1 with a male screw member 2A and a fixing female screw member 2B constituting the fixing screw member 2, and the waterproof sheet S is formed on the upper surface of the fixing bracket 3. It is glued.

  The fixing bracket 3 is formed by pressing a thin disk-shaped metal plate into an uneven cross-sectional shape so as to be lightweight but high in strength, and a male screw member 2A is provided at the center. A screw insertion hole 3a to be inserted is formed, and a countersink portion 3b in which the enlarged head portion 2Aa of the male screw member 2A is accommodated is formed around the screw insertion hole 3a. Therefore, in a state where the fixing bracket 3 is fixed to the waterproof base 1 with the male screw member 2 </ b> A, the enlarged-diameter head 2 </ b> Aa is configured not to protrude upward from the upper surface of the fixing bracket 3.

The waterproof base 1 is configured by providing a board layer 1A made of a heat insulating board on a concrete fixing layer 1B.
The fixing layer 1 </ b> B has a strength capable of fixing the fixing screw member 2.
The board layer 1A is formed of, for example, an isocyanate foam material, and has appropriate strength, heat resistance, and waterproofness. It is configured so that high waterproof performance and heat insulation performance can be exhibited by including innumerable closed cells.

  The fixing screw member 2 is made of metal and, as described above, is constituted by the male screw member 2A and the fixing female screw member 2B that can be screwed together. The board layer 1A and the fixing layer are formed on the waterproof base 1. The fixing female screw member 2B, which is inserted into the insertion hole 4 drilled in a state extending to 1B and arranged on the insertion tip side, is fixed to the fixing layer 1B.

The male screw member 2A is composed of a bolt having an enlarged head portion 2Aa formed in a round plate shape, and the lower end side of the screw portion 2Ab is screwed into the fixing female screw member 2B.
The fixing female screw member 2B is provided with a plurality of nodes 5 on the outer peripheral portion, and has a rough surface finish with fine irregularities on the entire outer peripheral surface, and is filled in the insertion hole 4. It is comprised so that the adhesive strength with the adhesive material V can be improved.
In addition, a female screw portion 6 is formed on the inner periphery so that the screw portion 2Ab of the male screw member 2A can be screwed together.

  The adhesive V is made of, for example, an epoxy-based synthetic resin, and has physical properties capable of fixing and fixing the fixing screw member 2 to the fixing layer 1B with sufficient strength.

Next, a method for installing the fixing screw member 2 on the waterproof base 1 will be described.
[1] As shown in FIG. 3 (a), the insertion hole 4 extending over the fixing layer 1B is drilled from above the board layer 1A with, for example, a drill or the like, and the drilling flaws in the hole are removed. The outer diameter of the insertion hole 4 is set to be slightly larger than the outer diameter of the fixing female screw member 2B.

[2] As shown in FIG. 3B, the adhesive V is filled into the insertion hole 4. The filling amount is preferably set so that the upper surface of the adhesive V substantially coincides with the upper surface of the fixing layer 1B in a state where the fixing female screw member 2B is inserted into the insertion hole 4 later.

[3] A metal suspension support bolt 7 (an example of a suspension support member) 7 is provided on the female screw portion 6 of the fixing female screw member 2B. Install.
A flange member 8 having a diameter larger than that of the insertion hole 4 is externally fitted below the enlarged diameter head of the suspension support bolt 7, and the fixing female screw member 2 </ b> B screwed to the lower end of the bolt is inserted into the insertion hole 4. The fixing female screw member 2B can be suspended and supported by placing the flange member 8 around the insertion hole 4 of the board layer 1A in the state of being sunk into the board (FIG. 3B). reference).

[4] The fixing female screw member 2B with the suspension supporting bolts 7 mounted thereon is inserted into the insertion hole 4, and the fixing female screw member 2B is fixed to the fixing layer 1B as shown in FIG. 3B. It is held until the adhesive V is solidified while being suspended and supported by the suspension support bolts 7 so as to be located at the same depth.

[5] The fixing of the fixing female screw member 2B is completed by rotating the suspension supporting bolt 7 in the direction to remove it and removing it from the fixing female screw member 2B. After that, as shown in FIG. 3C, the fixing bracket 3 is arranged on the insertion hole 4, and the male screw member 2A is inserted into the insertion hole 4 through the screw insertion hole 3a of the fixing bracket 3 to fix the fixing hole 3. Screwed into the female screw member 2B and screwed so that the enlarged-diameter head 2Aa fits in the countersink portion 3b of the fixing bracket 3 to fix the fixing bracket 3 to the waterproof base 1, and from above the waterproof sheet S In addition, the waterproof sheet S can be laid on the waterproof base 1 by adhering to the fixing bracket 3.

According to the fixing screw member installation method of the present embodiment, the fixing female screw member 2B can be reliably fixed to the fixing layer 1B, and a fixing reaction force is secured to the fixing female screw member 2B. The waterproof sheet S can be fixed.
Further, for example, when repairing a waterproof sheet, the fixing of the waterproof sheet S can be easily released by simply removing the male screw member 2A from the fixing female screw member 2B. The female screw member 2B can be reused as it is as the male screw member 2A for fixing the new waterproof sheet S, and the waterproof sheet can be modified more easily and economically. It is also possible to do.

[Another embodiment]
Other embodiments will be described below.

<1> The waterproof base 1 is not limited to the board layer 1A made of the isocyanate foam material and the concrete fixing layer 1B described in the previous embodiment, and may be made of other materials. .

<2> The suspension support member 7 is not limited to the metal suspension support bolt described in the previous embodiment. For example, the suspension support member 7 may be formed of a synthetic resin. Moreover, it is not limited to being configured separately from the eaves member 8, and may be formed integrally.
Further, as described in the previous embodiment, the heel member 8 is in contact with the upper surface of the waterproof base 1, and the suspension support bolt 7 (and the fixing female screw member 2B) falls into the insertion hole 4. For example, as shown in FIG. 4, an internal fitting portion 8 a that fits in the opening of the insertion hole 4 is provided, and the internal fitting portion 8 a is formed in the insertion hole 4. A function capable of positioning in the radial direction within the insertion hole may be added by being internally fitted. According to the inner fitting portion 8a, the fixing screw member 2 can be disposed on the central axis of the insertion hole 4.

<3> Further, the suspension support member 7 may be configured by a male screw member 2A as shown in FIG. 5 instead of the suspension support bolt described in the previous embodiment. The trouble of removing the suspension support bolt and changing to the male screw member 2A can be saved, and the laying operation of the waterproof sheet S can be carried out more efficiently. The male screw member 2 </ b> A can support the fixing female screw member 2 </ b> B with the diameter-enlarged head 2 </ b> Aa supported by the fixture 3.
Although not shown in the drawing, the suspension support member 7 may be a suspension support member that is detachably locked with the fixing female screw member 7 with a wire or the like, for example.

<4> In addition, regardless of the configuration of the suspension support member 7, it is preferable to provide a sealing material 9 between the fixing female screw member 2 </ b> B as shown in FIG. 6.
The sealing material 9 may be a molded product such as rubber or a fluid that can be applied.
By providing the sealing material 9, even when the fixing female screw member 2B is buried in the adhesive material V in the insertion hole 4, the adhesive material V is in the female screw portion 6 of the fixing female screw member 2B. Intrusion can be prevented, and an environment in which the suspension support member 7 can be smoothly removed from the fixing female screw member 2B can be maintained.

<5> In the repair of the waterproof sheet S, the fixing female screw member 2B installed by the fixing screw member installation method can be reused as described above, but the waterproof sheet S and the board layer 1A below it can be reused. In the case where both of these are modified, the fixing female screw member 2B can be used effectively.
For example, in a state where the waterproof sheet S and the board layer 1B are removed, the male screw member 2A is provided in a protruding state in which only the lower end portion is screwed to the fixing female screw member 2B fixed to the fixing layer 1B. By disposing the board layer 1B from above and pressing it toward the fixing layer 1B, the protruding portion of the male screw member 2A can be recessed from the back surface of the board layer 1B and penetrate to the surface. Accordingly, it is not necessary to determine the position of the fixing female screw member 2B from the position of the board layer 1B, and in addition, it is possible to save the trouble of drilling the insertion hole 4 for installing the fixing screw member 2 efficiently. Renovation work can be carried out.

  In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry. In addition, it goes without saying that the present invention can be carried out in various modes without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Waterproof base 1A Board layer 1B Fixing layer 2 Fixing screw member 2A Male screw member 2B Fixing female screw member 4 Insertion hole 6 Female screw part 7 Suspension support bolt (an example of a suspension support member)
S waterproof sheet V adhesive

Claims (3)

Waterproof underlayer having a fixing layer on the lower side provided with a board layer on the upper side, a fixture for fixing the waterproof sheet on the board layer, female thread for fixing a screwed freely male screw member to each other It is a fixing device installation method to be attached with a fixing screw member composed of a member,
The universal insertion hole inserts prior Symbol fixing female screw member, and the hole forming step of forming said waterproof base,
An adhesive filling step of putting an adhesive for fixing into the insertion hole ;
The lower portion of the hanging support member having a larger diameter of the flange portion from the insertion hole, in a state of attaching the fixing female screw member, before said adhesive material is cured, the said fixing female screw member inserted into the insertion hole, the insertion step that sank the fixing female screw member to the adhesive,
A fixing step of fixing the fixing female screw member to the fixing layer while supporting the fixing female screw member at a predetermined depth ;
Removing the suspension support member from the fixing female screw member fixed to the fixing layer, and removing the suspension support member from the insertion hole;
A fixing device installation method comprising: an attaching step of inserting a male screw member into the insertion hole and screwing the fixing screw onto the fixing female screw member fixed to the fixing layer; . In the insertion step, prior to inserting the fixing female screw member into the insertion hole, a seal member for preventing the penetration of the adhesive into the female threaded portion of the fixing female screw member, a front Symbol hanging support member The fixing device installation method according to claim 1, wherein the fixing device installation method is provided over the fixing female screw member . The fixing device installation method according to claim 1, wherein the suspension support member is the male screw member .

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