JP2011021731A - Anchor structure for gypsum board, and construction method of the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To remarkably reduce a possibility of breaking a gypsum board by eliminating the necessity to slit cloth beforehand when driving a rotation stop member into the gypsum board to which the cloth is attached, and to enhance anchor strength to improve earthquake resisting performance by forming a trinity of an anchor fitting, a resin receiving net and an adhesive anchor resin to disperse a load applied to an anchor fitting to thereby avoid the concentration of the load on a bored hole of the gypsum board. <P>SOLUTION: The anchor fitting 4 includes an anchor body 41 having a rugged part 41 in the outer peripheral region and an internal thread part 41b in the inner peripheral region, and the rotation stop member 42 driven into the gypsum board 3 to stop the rotation of the anchor body 41 when inserting the anchor body 41 in the resin receiving net 5. The rotation stop member 42 having a cutting edge part 42a machined into sharp cutting edge shape, at the tip part in the driving direction is provided in a position where a projecting part 41c is formed by projecting the base end part of the anchor body 41 from the wall surface of the gypsum board 3. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a gypsum board anchor structure embedded in a gypsum board and a construction method thereof.

  In recent years, the inner walls of buildings have a structure in which gypsum board is pasted as a base material on wooden pillars standing at a predetermined interval (approximately 450 to 500 mm) as a wall base, and finishing materials such as cloth are pasted on the surface. Is frequently used. When attaching towel hooks, curtain rails, flat TV hanging members, etc. to such inner walls, it is often not possible to attach them to studs, and gypsum board wall anchors are directly embedded in gypsum board walls. It is necessary to screw a mounting screw into the gypsum board anchor. The reason is that the gypsum board wall is fragile in strength, so that sufficient fixing strength cannot be obtained even if the mounting screw is directly screwed in.

  As an anchor for gypsum board, the anchor main body is impregnated with a resin adhesive on the inner periphery of the mounting hole of the gypsum board wall and cured, and then directly screwed (for example, see Patent Document 1) or gypsum board There is known a type in which an adhesive anchor resin is directly injected into a hole formed in a ceiling, an anchor body is inserted into the adhesive anchor resin, and a necessary fixing strength is obtained by curing the adhesive anchor resin. The latter is advantageous in strength compared to the former because it uses an adhesive anchor resin together, but when used on the inner wall, the injected resin falls to the back side of the wall, making it difficult to adhere and hold around the perforated hole. Therefore, it is difficult to adopt for the use, and there is a possibility of co-rotation when the mounting screw is screwed in. Therefore, a detent means is necessary.

On the other hand, as the above-mentioned detent means, there is a detent member that is attached to the embedded portion of the embedded bolt that is embedded by exposing the long bolt portion on the outer wall of the ALC, and prevents the embedded bolt from rotating. Are known. This is made of a flat metal plate exclusively for the outer wall of the ALC, and its construction method is also to make a buried hole in the ALC, inject an adhesive anchor resin, insert the buried part of the buried bolt, and prevent rotation Even if the member portion is driven and the embedded portion and the entire inner periphery of the embedded hole of the ALC are directly solidified and bonded, the anti-rotation function and the retaining function can be satisfied at the same time.
However, gypsum board is as thin as 9 to 12 mm and is very fragile compared to ALC. In particular, the inner circumference of the drilled hole collapses into a powdery shape by applying a slight screw thread force. Even if it is used as it is for gypsum boards for inner walls, there is a risk that the gypsum board will be broken when it is driven, and not only the anchor strength and retaining function can be obtained, but also a cloth is stuck When a detent member is driven into the gypsum board, it is necessary to make a cut in advance in the cloth, so that there is a problem that workability at the time of embedding is inferior. In addition, when a heavy object such as a flat-screen TV is attached via a retaining member, the gypsum board itself in the inner periphery of the drilled hole may be broken due to an earthquake or the like, causing the TV to fall and be damaged. Due to the problem of seismic strength, there is a fact that measures such as repairing and installing the wall base must be taken.

JP 2004-308443 A

The present invention was devised in order to eliminate the above-mentioned problems, and is made by attaching an anchor fitting formed with a female screw for attaching a hook or the like to a gypsum board using an adhesive anchor resin. However, it is possible to apply it to the anchor structure for gypsum board indoors by applying the anti-rotation member that has been provided for the buried bolts for outdoor ALC walls, and insert the anchor body into the resin receiving net. Therefore, when the detent member is driven into the gypsum board, the possibility of breaking the gypsum board can be significantly reduced, and when the detent member is driven into the gypsum board to which the cloth is pasted, It is no longer necessary to make a cut in the cable, ensuring that the anti-rotation function can be retained, providing excellent workability during embedment, and anchor metal fittings and resin receptacles. For gypsum board, the adhesive anchor resin is trinity, which can distribute the load applied to the anchor fitting and avoid concentrating on the gypsum board drilling hole, increasing the anchor strength and improving the seismic performance It aims at providing an anchor structure and its construction method.

In order to solve the above-mentioned problems, a gypsum board anchor structure according to the present invention includes a resin receiving net inserted into a hole formed in the gypsum board, and injected into a net tube of the resin receiving net so that the back surface of the gypsum board is formed from the mesh. An anchor structure for a gypsum board comprising an adhesive anchor resin that flows out to the side periphery and an anchor metal fitting inserted into a resin receiving network into which the adhesive anchor resin is injected, the anchor metal fitting having an outer peripheral region thereof An anchor main body having a concave and convex portion and a female screw portion in an inner peripheral area, and a rotation preventing member that is driven into a gypsum board and prevents the anchor main body from rotating when the anchor main body is inserted into the resin receiving net. The anti-rotation member has a cutting edge that is sharpened at the distal end in the driving direction, and a convex portion that projects the base end of the anchor body from the surface of the gypsum board is formed. Position And it is characterized in that it is.
Moreover, in order to solve the above-mentioned problem, the gypsum board anchor construction method of the present invention includes a resin receiving net inserted into a hole formed in the gypsum board, and injected into a net tube of the resin receiving net from the mesh. A gypsum board anchor construction method constructed using an adhesive anchor resin that flows out to the periphery of the back side of the gypsum board and an anchor fitting that is inserted into a resin receiving net into which the adhesive anchor resin is injected. The anchor metal fitting has an uneven part on the outer peripheral area and an internal thread part on the inner peripheral area, and is anchored into the gypsum board to prevent the anchor main body from rotating, and the edge of the anchor direction is sharpened at the tip in the driving direction. And a non-rotating member having a cutting edge portion, and when the anchor metal fitting is inserted into the resin receiving net, the anchor metal fitting is formed in a cylindrical shape having substantially the same diameter as the hole formed in the gypsum board. Molded into The rotation prevention member is inserted into a positioning jig that can be positioned and set at the center of the cylinder hole in a state where the rotation of the rotation prevention member is restricted. The positioning jig is inserted into the drilled hole, and the rotation prevention member is inserted together with the set anchor fitting. After driving and aligning the center of the anchor fitting with the drill hole, the anchor bracket is pulled out of the drill hole together with the positioning jig, and a punching mark of the detent member is previously formed in the drill hole. An adhesive anchor resin is injected into the perforated hole with the resin receiving net inserted, and the anchor fitting is inserted into the resin receiving net by aligning the anti-rotation member with the implantation mark. It is characterized by doing.

The present invention is configured as described above, so that the anchor metal fitting in which the female screw for attaching the hook or the like is formed is attached to the gypsum board using the adhesive anchor resin. By applying the anti-rotation member provided in the dedicated buried bolt, it becomes possible to use it as an anchor fitting for gypsum board on the indoor wall, and by inserting the anchor body into the resin receiving net, When driving into gypsum board, the possibility of breaking the gypsum board can be significantly reduced, and it is also necessary to cut in the cloth in advance when driving a detent member into the gypsum board to which the cloth is affixed Therefore, the anti-rotation function can be reliably maintained, and the workability at the time of embedding can be improved. Moreover, even if a heavy object is suspended by a hook or a retaining member attached to the female screw portion after the completion of embedding, the load is anchor metal and resin receiving net, and an adhesive anchor resin injected into the periphery of the full length region Spread around the perforation hole on the back of the gypsum board, and these can be received in a state where the load load on the mounting part is dispersed and the load applied to the anchor bracket is directly applied to the perforation hole of the gypsum board. Compared with conventional ones, the anchor strength and retaining function for gypsum board can be strengthened, and even the gypsum board for the inner wall does not need to be repaired, and it is earthquake resistant. The performance is dramatically improved and it can be attached firmly.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a gypsum board anchor structure and a construction method thereof exemplified as a preferred embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory view of a gypsum board anchor structure in an embedded state, FIG. 2 (A) is a front view of the anchor fitting, FIG. 2 (B) is a plan view of the anchor fitting, and FIG. 2 (C) is a side view of the anchor fitting. Fig. 2 (D) is a cut end view of the anchor body, Fig. 3 (A) is a plan view of the resin receiving net, (B) is a side view, and Fig. 4 is an embodiment in which the support receiving plate is a hanging bracket. FIG. 5 is a block diagram showing an embodiment in which the support receiving plate is a seat plate.

  As shown in these drawings, a gypsum board anchor structure 1 according to an embodiment of the present invention is embedded in a gypsum board 3 in order to attach a suspension bracket 7 or a hook of a thin television to a support receiving plate 2. It comprises an anchor fitting 4, a resin receiving net 5, an adhesive anchor resin 6 and the like.

  The gypsum board 3 is used as a base material for a ceiling or an inner wall in a building, and a finishing material such as a cloth 31 is pasted on the surface thereof. Although the case where it applies to an inner wall is illustrated below, of course, it may be used for a ceiling. On the wall surface of the gypsum board 3, when attaching a towel bracket or a suspension bracket 7 for a flat-screen TV wall to the support receiving plate 2, an anchor metal fitting 4 is embedded in the gypsum board 3 via a resin receiving net 5, A mounting screw 2 a (bolt) for mounting the support receiving plate 2 is screwed into the anchor metal fitting 4.

  The anchor fitting 4 includes an anchor main body 41 and a detent member 42. The anchor main body 41 is inserted into the drilled hole 3a of the gypsum board 3, and has an uneven portion 41a in the outer peripheral region and a female screw portion 41b in the inner peripheral region. The outer circumferential uneven portion 41a is for improving the adhesiveness with the adhesive anchor resin 6, and is formed in a male screw (bolt) groove shape in this embodiment, but may be knurled. Moreover, the internal thread part 41b of an inner periphery is a screw hole for screwing the attachment screw 2a.

  The anti-rotation member 42 is provided integrally with the anchor main body 41, and when the anchor metal fitting 4 is inserted into the drilled hole 3a of the gypsum board 3, the anti-rotation member 42 is driven into the gypsum board 3 to prevent the anchor metal fitting 4 from rotating. . And the rotation prevention member 42 of the anchor metal fitting 4 which concerns on this invention has the blade edge part 42a by which the blade edge was sharpened at the front-end | tip part in the driving | running | working direction. Although there is no restriction | limiting in the shape and material of the rotation prevention member 42, It is preferable to set it as a metal plate of a semicircle shape or an isosceles triangle shape. In this case, the top portion of the blade edge portion 42a is directed in the driving direction, and the uneven portion 41a on the base end portion side is formed on a smooth surface, and the blade edge portion 42a is formed on the smooth surface from the thread portion of the uneven portion 41a. The base end portion (head portion) of the anchor main body 41 is welded at a position having a convex portion 41 c that protrudes from the surface of the gypsum board 3. When attached in this manner, the adhesive anchor resin 6 is also injected into the groove region formed between the cutting edge portion 42a and the threaded portion of the concavo-convex portion 41a, which can contribute to improvement in anchor strength.

  The resin receiving net 5 is a cylindrical bag-shaped net member for holding the injected adhesive anchor resin 6 and is formed to have an outer diameter (12 mm) substantially the same as the hole diameter of the drilling hole 3a. Is inserted into the perforation hole 3a. A flange portion 5a is formed at the base end portion, and the flange portion 5a is abutted against (abuts on) the wall surface of the gypsum board 3 at the peripheral edge portion of the perforation hole 3a, whereby further insertion is restricted. Is done. When the resin receiving net 5 is inserted into the perforated hole 3 a of the gypsum board 3, the adhesive anchor resin 6 is injected into the cylinder of the resin receiving net 5 and the anchor fitting 4 is inserted into the adhesive anchor resin 6. In addition, after the anti-rotation member 42 is driven into the gypsum board 3, the adhesive anchor resin 6 is cured, but the resin receiving net 5 of the present embodiment is in contact with the blade edge portion 42a of the anti-rotation member 42. A notch portion 5b is formed to avoid the deformation when the detent member 42 is struck, and the injected adhesive anchor resin 6 including the anchor fitting 4 can be securely held. In addition, a mixed type adhesive in which a benzoyl peroxide curing agent is mixed with an epoxy acrylate resin main component is used as an adhesive anchor resin.

Reference numeral 2 denotes a support receiving plate that is abutted against a wall surface and is attached to the anchor metal fitting 4. The mounting support 20 is provided with an attachment hole 20a for screwing the attachment screw 2a into the female screw portion 41b of the anchor main body 41. In addition, an attachment hole 20b for the anchor plug P is formed so that the attachment operation can be completed before the adhesive anchor resin 6 is cured. A concave groove 20c is formed in the outer peripheral surface portion of the mounting hole 20a on the back surface side of the support receiving plate 2. The concave groove 20c is injected into the flange portion 5a of the resin receiving net 5 and the resin receiving net 5. It is a space for accommodating the adhesive anchor resin 6 that protrudes to the wall surface side, and the convex portion 41c of the anchor main body 41 that protrudes from the detent member 42 on the wall surface side of the gypsum board 3 is abutted against the opposing surface. It becomes a receiving surface to support.
Then, when attached to the anchor fitting 4 via the attachment screw 2a, the convex portion 41c of the anchor main body 41 is supported by face contact with the opposing surface of the concave groove 20c, thereby rotating around the outer peripheral surface of the concave groove 20c. Both ends of the stop member 42 are supported by face contact, and the support receiving plate 2 can be directly and integrally assembled firmly without sandwiching the gypsum board 3 with the anchor metal fitting 5 by so-called three-point support. It is possible to maintain a squareness with respect to the wall surface.

  The support receiving plate 2 shown in FIG. 4 is formed as a retaining bracket 21 used when the thin television 9 is wall-mounted. This latching bracket 21 has a support receiving plate 2 formed in an elliptical shape, and has a receiving hole 21b formed so as to protrude forward on the surface side and for inserting and supporting both side portions of a fixing bar 211 for latching to be described later. The support piece 21a is provided with a hole. The upper and lower portions of the support piece 21a are provided with oval attachment holes 20a that allow the position of the attachment screw 2a to be screwed into the female screw portion 41b of the anchor body 41, and anchor plugs P are formed on the left and right portions of the support piece 21a. A mounting hole 20b is formed.

  The support receiving plate 2 shown in FIG. 5 is formed as a general-purpose seat plate 22 when the thin television 9 is mounted on the wall or when a hook or the like is mounted. The seat plate 22 has a support receiving plate 2 formed in a disk shape, and an attachment hole 20a for screwing the attachment screw 2a into the female screw portion 41b of the anchor body 41 is provided at the center thereof. Attachment holes 20b for anchor plugs P are formed in both side portions.

Next, the construction method of the embedding procedure of the anchor structure 1 for gypsum board is demonstrated with reference to FIG. 6, FIG. 6A is a front view, FIG. 6B is a side view, FIG. 6C is a cross-sectional view, FIG. 7 is an explanatory view of using the positioning jig, and FIG. 8 is a gypsum board anchor. It is explanatory drawing which shows the embedding procedure of a structure. As shown in these drawings, when the gypsum board anchor structure 1 is constructed on the gypsum board 3, first, a hole 3a is formed in the gypsum board 3. Next, the positioning jig 8 is inserted into the drilling hole 3a in a state where the anchor fitting 4 is set.
This positioning jig 8 is for accurately setting the anchor metal fitting 4 at the center of the drilling hole 3a, and has a cylindrical shape having an outer diameter (11.8 mm) substantially the same as the hole diameter of the drilling hole 3a. A gripping flange portion 81 formed and inserted into the drilling hole 3a on the insertion side of the anchor fitting 4, and a positioning jig 8 formed in an L shape so as to contact the outer peripheral surface of the drilling hole 3a; And a guide portion 82 for abutting and guiding the rotation preventing member 42. The anchor metal fitting 4 may be set to the positioning jig 8 either by inserting it into the drilling hole 3a from a previously set state or by setting the positioning jig 8 after inserting it into the drilling hole 3a. . In any case, when the anti-rotation member 42 is set in the state shown by the temporary wire in FIG. 7, that is, before the anti-rotation member 42 is driven, and the anti-rotation member 42 is driven while lightly hitting the convex portion 41c, the cutting edge portion 42a is The self cuts the cross 31 and pierces the gypsum board 3 sharply, and the anti-rotation member 42 is guided to the guide portion 82 and is centered in the drilling hole 3a with high accuracy with respect to the gypsum board 3. The anchor metal fitting 4 can be accurately positioned at a right angle. Thereafter, the positioning jig 8 is extracted together with the anchor fitting 4, and a driving mark 3b of the detent member 42 is preliminarily formed in the drilling hole 3a (FIG. 8A).

Next, the resin receiving net 5 is inserted into the drilled hole 3a in which the implantation mark 3b is formed (FIG. 8B), and the adhesive anchor resin 6 is injected into the resin receiving net 5 (FIG. 8C). ). When the adhesive anchor resin 6 is injected until it sufficiently protrudes from the periphery of the stitch of the resin receiving net 5 to the back surface of the gypsum board 3, the resin receiving net 5 is slightly pulled out (about 10 mm) and the adhesive anchor resin 6 is injected again. (FIG. 8D). In this way, the adhesive anchor resin 6 can be attracted and firmly attached to the outer peripheral surface of the drilled hole 3a on the back surface of the gypsum board 3.
Thereafter, the anchor metal fitting 4 is inserted into the resin receiving net 5 into which the adhesive anchor resin 6 has been injected, and the anti-rotation member 42 is positioned and pushed into the implantation mark 3b (FIG. 8 (E)), and the anchor plug is inserted. When P is not used, the adhesive anchor resin 6 is awaited to be cured, and after solidifying, the support receiving plate 2 is attached by fixing with a mounting screw 2a (bolt).
In addition, the formation position of the implantation trace 3b of the rotation stopper 42 is arbitrary, such as up and down, left and right, and oblique directions.

Now, a case where the thin television 9 is mounted on the wall using the support receiving plate 2 to the gypsum board anchor structure 1 configured as described above will be described with reference to FIGS. 9 is a perspective view of a wall-mounted suspension bracket of a flat-screen television, FIG. 10 is a front view showing a state of being placed on a gypsum board, and FIG. 11 is a longitudinal sectional view showing a state of being placed on a gypsum board. As shown in these drawings, when the thin television 9 is mounted on the wall, each member (wall mounting bracket) of the hanging bracket 21, the fixing bar 211, the suspension bracket 7, and the seat plate 22 is used.
The suspension bracket 7 includes a suspension portion 71 formed by bending the upper end side of the fixed bar 211 supported by the latch bracket 21 into an inverted U-shape (concave shape) so as to be hooked and engageable. The TV mounting portion 72 attached to the back surface of the thin television 9 extending downward from the portion 71 and the TV mounting portion 72 on the lower side of the suspension portion 71 are bent in an L shape on the wall surface side. The members formed by bending the plate-like member with the auxiliary support portion 73 that extends downward and holds the gap from the wall surface and is received and locked by the seat plate 22 are integrally formed as a pair on the left and right. It is configured to prepare for. In addition, although the plate-shaped member was employ | adopted as the suspension bracket 7 in order to achieve weight reduction, you may employ | adopt this by bending forming a pipe material etc.

  In order to mount the thin television 9 on the wall, first, positioning for mounting the retaining bracket 21 and the seat plate 22 at two predetermined positions at predetermined height positions on the top, bottom, left and right of the wall of the gypsum board 3. When attaching to a stud, it is screwed with a wood screw, and when there is no stud, the gypsum board anchor structure 1 is applied. At this time, if it is desired to attach the latch bracket 21 before the adhesive anchor resin 6 is cured, the anchor bracket P is applied to the attachment hole 20b after the attachment to the anchor body 41 with the attachment screw 2a. The both sides of the fixing bar 211 are inserted into the respective receiving holes 21b of the latching bracket 21 and installed. Note that both ends of the fixing bar 211 are detachable by screwing caps. Next, after the hanging portion 71 of the hanging bracket 7 is hooked on the fixing bar 211 and is slid in the left-right direction to adjust the mounting position of the thin television 9, the cutout holes provided in the auxiliary support portion 73 are provided. The gypsum board anchor structure 1 is applied to the portion 73a if necessary. Thereafter, the suspension bracket 7 is screwed to the back surface of the thin television 9 through the attachment hole 72 a formed in the television attachment portion 72, and the suspension portion 71 is hooked on the fixing bar 211, and between the wall surface and the auxiliary support portion 73. The seat plate 22 is interposed between the notch hole 73a and a washer to fix it with the mounting screw 2a. The suspension bracket 7 can be easily removed together with the flat-screen TV 9 simply by loosening the mounting screw 2a of the auxiliary support portion 73. Therefore, when the suspension bracket 7 is installed in a facility such as a hotel, it is also an anti-seismic surface. Therefore, it is safe if both are fixed, for example, the suspension 71 is fixed to the fixing bar 211 with a tapping screw or the like if necessary.

Next, an example of a seismic performance test performed for the case where the gypsum board anchor structure 1 is applied using the above-described wall-hanging bracket (wall-hanging means) of the thin television 9 will be described.
This seismic performance test was conducted by the Building Materials Testing Center at the UR Urban Reconstruction Organization Urban Housing Technology Research Institute, and the test conditions were the 1995 Hyogo-ken Nanbu Earthquake, seismic intensity 6 strong, and number of excitations 6 times. What was done about.
The specifications of each member used in this seismic performance test are as follows.
・ Gypsum board: 910 × 1820mm, thickness 9.5mm, 12.5mm, 9.5 + 12.5mm (two-layered), fixed to 45mm square (left and right, center) with screws. ; 42 types (1020 x 670 mm, thickness 90 mm, weight 24 kg), 52 types (1250 x 820 mm, thickness 90 mm, weight 28.5 kg); Adhesive anchor resin; As the main component of epoxy acrylate resin made by Asahi Kasei Chemicals; Mixed adhesive / anchor bracket with mixed benzoyl peroxide curing agent; Anchor body (outer screw w3 / 8, outer diameter 9.2 mm, length 30 mm, inner screw M6, effective depth 13 mm), detent member (Arc-shaped meniscus, length 30 mm, depth 8 mm), both made of iron and resin; SUS304 wire mesh, 12Φ, length 34 mm and gypsum bow Anchor pitch between two-hooking bracket for the two floors 40 mm; in the floor of 1700mm height, 52-inch TV two 800mm and 460 mm, 42-inch television 700mm
・ Anchor pitch of hanging bracket;
・ Anchor pitch between seats; 480mm
10 and 11 shows a state in which a 52-inch television is wall-mounted with a plaster board thickness of 9.5 mm (12.5 mm) and an anchor pitch of 800 mm between the brackets.

Thus, the test results are the same for any combination of the above conditions.
・ Evaluation results are as follows: no dropout of flat-screen TV ・ no shift or damage of wall mounting bracket ・ no damage of plasterboard ・ no pullout of anchor bracket, especially the most severe condition of the specimen The gypsum board in the present invention was able to clear the seismic performance test even when the 52-inch TV was hung on the gypsum board 3 having a thickness of 9.5 mm with an anchor pitch of 460 mm between the retaining brackets 21 and 21. Anchor structure 1 has been confirmed to have anchor strength and retaining function as if directly attached to the stud, and confirmed to be significantly superior to the seismic performance of conventional gypsum board anchor structures It was done.

  In the embodiment of the present invention configured as described above, a heavy object such as a thin television 9 is attached to a gypsum board 3 for an inner wall without a wall base such as a stud using a wall hanging member such as a hook. However, the gypsum board anchor structure 1 according to the present invention includes a resin receiving net 5 inserted into the perforated hole 3a of the gypsum board 3, and injected into a net cylinder of the resin receiving net 5 so that the gypsum from the mesh is injected. It consists of an adhesive anchor resin 6 that flows out to the periphery of the back side of the board 3 and an anchor metal fitting 4 that is inserted into a resin receiving net 5 into which the adhesive anchor resin 6 is injected. An anchor body 41 having an uneven portion 41a and a female thread portion 41b in the inner peripheral area, and a rotation that stops the anchor body 41 by being driven into the gypsum board 3 when the anchor body 41 is inserted into the resin receiving net 5. Stopping member 2, and the anti-rotation member 42 has a cutting edge portion 42 a that is sharpened at the distal end portion in the driving direction, and the base end portion of the anchor body 41 is the wall of the gypsum board 3. It is the structure provided in the position in which the convex-shaped part 41c which protrudes from the surface is formed.

  For this reason, the anchor metal fitting in which the female thread for attaching the wall hanging member such as a hook is formed is attached to the gypsum board 3 by using the adhesive anchor resin, but it is prepared for the buried bolt exclusively for the outdoor ALC wall conventionally. By applying the anti-rotation member that has been used, it can be used as the anchor metal fitting 4 for the gypsum board on the indoor wall. The anchor main body 41 is inserted into the resin receiving net 5, and the anti-rotation member 42 is used as the gypsum board. The possibility of breaking the gypsum board 3 can be remarkably reduced even when the grommet board 3 is driven, and also when the detent member 42 is driven into the gypsum board 3 to which the cloth 31 is stuck, the cross 31 Is cut into the gypsum board 3 so that it is not necessary to make a cut in the cloth 31 in advance. Can be, it is assumed that also excellent in workability at the time of buried. Moreover, even if a heavy object such as the thin television 9 is suspended on the hook or the retaining member attached to the female screw portion 41b after the completion of the embedment, the load is applied to the anchor bracket 4, the resin receiving net 5, and the peripheral length of the full length region. The adhesive anchor resin 6 injected into the periphery of the gypsum board 3 is spread around the perforation hole 3a on the back side of the gypsum board 3, and these are integrated in three places to receive the load applied to the mounting portion in a dispersed state. It is avoided that a concentrated load is directly applied to the hole 3a of the board 3, and the anchor strength and the retaining function for the gypsum board 3 can be made stronger than those of the conventional one, Even if it is the gypsum board 3 of this, it becomes unnecessary to repair a wall base, and a seismic resistance is improved dramatically and it can attach firmly.

  Furthermore, the anchor metal fitting 4 is mounted in a state where the convex portion 41c of the anchor main body 41 protrudes from the wall surface in a state where the base end side of the anti-rotation member 42 driven into the gypsum board 3 is flush with the wall surface. Since it can be embedded, the convex portion 41c and the anti-rotation have a simple configuration in which only the concave groove 20c is formed on the opposite back surface of the support receiving plate 2 attached to the female screw portion 41b by the mounting screw 2a. By so-called three-point support by the both ends of the member 42, the support receiving plate 2 is directly and integrally strengthened without holding the gypsum board 3 with respect to the anchor metal fitting 4 while maintaining the squareness with respect to the wall surface. Can be assembled.

  That is, the support receiving plate 2 is attached to the surface side of the gypsum board 3 by screwing the mounting screw 2a into the female screw portion 41b into the anchor main body 41 inserted into the resin receiving net 5. The plate 2 has a mounting hole 20a of the mounting screw 2a and a concave groove 20c formed on the outer periphery of the mounting hole 20a on the back surface side. When the plate 2 is attached to the anchor metal fitting 4, the opposite surface of the concave groove 20c. Since the convex portion 41 c of the anchor main body 41 is supported against the surface and both end portions of the anti-rotation member 42 are abutted and supported by the outer peripheral surface of the concave groove 20 c, the concave groove 20 c is formed on the resin receiving net 5. Not only can it be used as a space for accommodating the adhesive anchor resin 6 that is injected into the flange portion 5a and the resin receiving net 5 and protrudes to the wall surface side, it is attached to the anchor fitting 4 via the mounting screw 2a. In this case, a so-called three-point support structure can be realized by the convex portion 41c to be faced and both end portions of the anti-rotation member 42, and the gypsum board 3 is sandwiched between the support receiving plate 2 and the anchor fitting 4. In addition, both can be directly and integrally assembled firmly while maintaining a squareness with respect to the wall surface. Moreover, before the adhesive anchor resin 6 is cured, even if the anchor metal fitting 4 is embedded without having a squareness, it can be drawn into the support receiving plate 2 by screwing and can be corrected. There is.

Further, the support receiving plate 2 is provided with an attachment hole 20a for the anchor plug P so that the support receiving plate 2 can be attached to the anchor fitting 4 before the injected adhesive anchor resin 6 is cured. Therefore, if the support receiving plate 2 is attached with the anchor plug P, there is no possibility of destroying the gypsum board 3 unless vibration or inadvertent impact is applied. Even before the curing of 6, the embedding operation and the operation of attaching a heavy object such as the thin television 9 using the support receiving plate 2 can be completed, and the operation time can be significantly shortened.
The standard time for curing the adhesive anchor resin 6 is about 90 minutes at a temperature of 10 ° C., about 30 minutes at a temperature of 20 ° C., and about 25 minutes at a temperature of 30 ° C.

  The anti-rotation member 42 is made of a semi-circular or isosceles triangular metal plate, and the edge of the cutting edge 42a is dropped from the peak of the concavo-convex portion 41a so that the top portion thereof faces the driving direction. Since it is welded to 41, the driving resistance to the gypsum board 3 can be further reduced, and there is no hindrance such as blocking the female screw portion 41b. Moreover, since the anti-rotation member 42 is welded to the smooth surface obtained by scraping the uneven portion 41a on the proximal end side of the anchor main body 41, the groove portion formed between the blade edge portion 42a and the thread portion of the uneven portion 41a. The adhesive anchor resin 6 is also injected into the region, which can contribute to improvement of anchor strength.

  The resin receiving net 5 is abutted against the surface side of the gypsum board 3 when the resin receiving net 5 is inserted into the notch 5 b for avoiding contact with the rotation stopper 42 and the hole 3 a of the gypsum board 3. Since the flange portion 5a is formed, the flange portion 5a is abutted (abutted) on the wall surface side of the gypsum board 3 at the peripheral portion of the perforation hole 3a, thereby restricting further insertion. In addition, it is possible to avoid deformation when the notch portion 5b hits the rotation preventing member 42, and to firmly hold the injected adhesive anchor resin 6 including the anchor fitting 4.

  Further, the concave groove 20c of the support receiving plate 2 is also used as a storage space for the adhesive anchor resin 6 which is injected into the flange portion 5a of the resin receiving net 5 and the resin receiving net 5 and protrudes to the gypsum board surface side. Since it is comprised, the support receiving plate 2 can be attached to the anchor metal fitting 4 by sandwiching it between the wall surfaces in a state where the protruding adhesive anchor resin 6 is adhered to the outer peripheral surface of the flange portion 5a. In particular, if the support receiving plate 2 is attached before the adhesive anchor resin 6 is cured, the protruding adhesive anchor resin 6 can be adhered to the inner surface of the concave groove 20c in a state where the adhesive anchor resin 6 protrudes throughout the concave groove 20c. Further anchor strength can be obtained.

  In addition, when the anchor structure 1 for gypsum board is applied to any part of the indoor wall in any of the upper, lower, left, and right sides, and the thin TV 9 is mounted on the wall using the support receiving plate 2, the support receiving plates disposed at the upper two locations. 2 is a latching bracket 21 that supports both sides of the securing bar 211 for latching, and the support receiving plate 2 that is disposed at two lower positions is configured as a seat plate 22 and is attached to the anchor bracket 4 respectively. Then, a pair of suspension parts 71 hooked to the fixing bar 211 on the upper end side, a TV mounting part 72 attached to the rear face of the television, and a screw to the seat plate 22 on the lower end side are provided on the rear surface of the thin television 9. The suspension bracket 7 having a pair of auxiliary support portions 73 attached thereto is attached, the thin television 9 is hung on the fixed bar 211 via the suspension portion 71, and the auxiliary support portion 73 is screwed to the seat plate 22. Since it was stopped and attached, Positioning adjustment can be performed by hanging the bracket 7 in a slidable state between the latching brackets 21 and 21, and positioning the seat plate 22 after the installation position is determined (anchor bracket 4 is embedded). The thin television 9 can be mounted on the wall according to the situation of the installation site.

In addition, even a heavy object such as a thin television 9 can be suspended by suspending the television brackets 21 and 21 by sharing a television load, and can be supported by the seat plate 22 together with the auxiliary support portion 73. Therefore, it is possible to hang on the wall in a state where the load of the entire television is dispersed in the vertical and horizontal directions, and the durability of the suspended state can be ensured. As a result, in combination with the anchor structure 4 for the three-piece gypsum board by the anchor metal fitting 4, the resin receiving net 5, and the adhesive anchor resin 6, combined with the strong retaining function in which the load is distributed to the drilling holes 3 a, The load distribution function by the wall hanging means of the flat-screen TV 9 prevents the TV load on the gypsum board anchor structure 1 at one place from being concentrated even on the wall surface of the gypsum board 3 having no intermediary pillars. As demonstrated by the performance test results, it can have significantly superior seismic performance.
Furthermore, the space between the wall surface and the television back surface is secured by the auxiliary support portion 73, and the cords and terminals connected to various connection terminals provided on the television back surface are pressed against the wall surface by the television load and are damaged. In addition to being avoided, there is an advantage that the connecting / disconnecting operation of these connection terminals can be performed even from a suspended state.

Further, the positioning jig 8 of the anchor bracket 4 is guided by abutting and guiding the plate surface of the anti-rotation member 42 to the base end portion of the positioning jig 8 so as to avoid contact with the blade edge portion 42a, thereby positioning the anchor body 41 around the center of the cylinder hole. And a grippable flange portion 91 that contacts the peripheral edge of the surface of the drilling hole 3a are formed, and insertion and extraction into the drilling hole 3a are performed via the flange portion 81. Therefore, when the anchor metal fitting 4 is set in a state before the anti-rotation member 42 is driven, and the anti-rotation member 42 is driven while lightly hitting the convex portion 41c, the anti-rotation member 42 is in sliding contact with the guide portion 82. While being guided and centered in the drilling hole 3a, not only can the anchor metal fitting 4 be accurately positioned at right angles to the gypsum board 3, but also the anchor jig 4 and the positioning jig 8 are extracted. Te, it is possible to perform a construction work to be is previously engraved punching Nyuato 3b of member 42 detent in drilled hole 3a.

It is use explanatory drawing of the anchor structure for gypsum boards which shows an embedment state. (A) which shows an anchor metal fitting is a front view, (B) side view, (C) is a top view, (D) AA cut end view. (A) which shows a resin receiving net | network is a top view, (B) is a side view. It is a block diagram which shows the Example which used the support receiving plate as the latching bracket. It is a block diagram which shows the Example which used the support receiving plate as the seat plate. (A) which shows the positioning jig of an anchor metal fitting is a front view, (B) is a side view, (C) is sectional drawing. It is use explanatory drawing of a positioning jig. It is explanatory drawing which shows the embedding procedure of the anchor structure for gypsum boards. It is a perspective view of the hanging bracket for wall hangings of a thin television. It is a front view which shows the arrangement | positioning state to a gypsum board. It is a longitudinal cross-sectional view which shows the arrangement | positioning state to a gypsum board.

DESCRIPTION OF SYMBOLS 1 Anchor structure for gypsum board 2 Support receiving plate 2a Mounting screw 20a Mounting hole 20b Mounting hole 20c Recess groove 21 Hanging bracket 21a Supporting piece 21b Receiving hole 211 Fixing bar 22 Seat plate 3 Gypsum board 31 Cross 3a Drilling hole 3b Trace 4 Anchor bracket 41 Anchor main body 41a Uneven portion 41b Female thread portion 41c Convex portion 42 Anti-rotation member 42a Cutting edge portion 5 Resin receiving net 5a Flange portion 5b Notch portion 6 Adhesive anchor resin 7 Suspension bracket 71 Suspension portion 71a Mounting hole 71b Screw 72 Television mounting part 72a Mounting hole 73 Auxiliary support part 73a Notch hole 8 Positioning jig 81 Flange part 82 Guide part 9 Thin TV P Anchor plug

Claims (10)

A resin receiving net inserted into a hole in the gypsum board, an adhesive anchor resin that is injected into a net tube of the resin receiving net and flows out from the mesh to the back side of the gypsum board, and the adhesive anchor resin An anchor structure for a gypsum board composed of an anchor fitting inserted into an injected resin receiving net,
The anchor fitting has an anchor body having an uneven portion on its outer peripheral region and a female screw portion on its inner peripheral region, and when the anchor body is inserted into the resin receiving net, it is driven into a gypsum board to prevent the anchor body from rotating. An anti-rotation member integrally formed,
The anti-rotation member has a cutting edge that is sharpened at the tip in the driving direction, and is provided at a position where a convex portion that projects the base end of the anchor body from the gypsum board surface is formed. An anchor structure for a gypsum board characterized by that.   The anti-rotation member is made of a semi-circular or isosceles triangular metal plate, and the blade edge part is welded to the anchor body with the blade edge part being dropped from the ridge part of the concavo-convex part so that the top part faces the driving direction. The anchor structure for gypsum board according to claim 1, wherein   The resin receiving net is formed with a notch portion for avoiding contact with the anti-rotation member, and a flange portion that is faced to the surface side of the gypsum board when inserted into the drilling hole of the gypsum board. The gypsum board anchor structure according to claim 1 or 2, wherein the gypsum board anchor structure is provided.   A support receiving plate which is attached to the surface side of the gypsum board by screwing a mounting screw into the female screw portion into the anchor body inserted into the resin receiving net, and the support receiving plate It has a mounting hole and a concave groove formed on the outer periphery of the mounting hole on the back side thereof, and supports the convex part of the anchor body on the surface facing the concave groove when mounted on the anchor fitting. The gypsum board anchor structure according to any one of claims 1 to 3, wherein both end portions of the detent member are abutted and supported by the outer peripheral surface of the concave groove.   The concave groove of the support receiving plate is formed in a housing space for an adhesive anchor resin that is injected into the flange portion of the resin receiving net and the resin receiving net and protrudes to the surface side of the gypsum board. Item 4. The gypsum board anchor structure according to Item 3.   The support receiving plate is provided with an attachment hole for an anchor plug so that the support receiving plate can be attached to the anchor fitting before the injected adhesive anchor resin is cured. The anchor structure for gypsum boards according to claim 4 or 5. Applying the anchor structure for gypsum board to any place on the top, bottom, left and right of the indoor wall, and mounting the thin TV on the wall using the support receiving plate,
The support receiving plates disposed at the two upper locations are configured as retaining brackets that support both side portions of the fixing bar for latching, and the support receiving plates disposed at the two lower locations are configured as seat plates. Attached to the anchor brackets,
On the back surface of the flat-screen television, a pair of suspension portions that are hooked to the fixing bar on the upper end side, a television mounting portion that is attached to the rear surface of the television, and a pair of screws that are screwed to the seat plate on the lower end side Attach a suspension bracket with an auxiliary support,
7. The gypsum board for plasterboard according to claim 4, wherein a thin TV is wall-mounted on a fixed bar through the suspension part and the auxiliary support part is screwed to a seat plate. Anchor structure. A resin receiving net inserted into a hole in the gypsum board, an adhesive anchor resin that is injected into a net tube of the resin receiving net and flows out from the mesh to the back side of the gypsum board, and the adhesive anchor resin It is a construction method of an anchor for a gypsum board constructed using an anchor fitting inserted into an injected resin receiving net,
The anchor metal fitting has an irregularity in the outer peripheral area and an anchor main body having an internal thread in the inner peripheral area, and the anchor main body is driven into a gypsum board to prevent the anchor main body from rotating, and is sharpened at the tip end in the driving direction. A non-rotating member having a cutting edge portion is integrally provided, and when the anchor fitting is inserted into the resin receiving net,
The anchor metal fitting is molded into a cylindrical shape having substantially the same diameter as the hole formed in the gypsum board, and inserted into a positioning jig that can be positioned and set at the center of the cylindrical hole in a state where the rotation preventing member is restricted in rotation.
After inserting the positioning jig into the drilling hole, driving the anti-rotation member together with the anchor fitting set, and centering the anchor fitting to the drilling hole,
Pull out the anchor fitting together with the positioning jig from the drilling hole, and previously form a drive mark of the detent member in the drilling hole,
An adhesive anchor resin is injected into the perforated hole with the resin receiving net inserted, and the anchor fitting is inserted into the resin receiving net by aligning the anti-rotation member with the implantation mark. The construction method of the anchor for gypsum boards characterized by doing.   The positioning jig includes a guide portion for guiding a non-rotating member to a base end portion of the positioning jig so as to avoid contact with the blade edge portion and positioning the anchor body at the center of the cylindrical hole, and a peripheral edge of the drilling hole. The method for constructing a gypsum board anchor according to claim 8, wherein a grippable flange portion that abuts on the portion is formed, and insertion into and removal from the drilling hole is performed via the flange portion.   10. The construction method for a gypsum board anchor according to claim 8 or 9, wherein the resin receiving net injected with the adhesive anchor resin is slightly pulled out and then pushed back into the original position.