JP2003261988A - Anchor screw and concrete placing construction method using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an anchor screw which dispenses with drilling of a prepared hole into concrete, is prevented from being turned even when being given a turning force, and reduces the number of man-hours for work. <P>SOLUTION: This anchor screw is formed as a cylindrical body; and when cement is poured for solidification in a state in which one end of the cylindrical body can be exposed outside, turning preventing means (a hexagonal fixing-bolt screwing part 1 and a flange part 2) of the anchor screw AB1 are provided in the turning and insertion of an insertion member (a fixing bolt 13) into an exposable part from without. In this way, the anchor screw AB1 is preinstalled inside a temporary frame for the concrete, the cement is poured for solidification, the temporary frame and the like are removed after the solidification, and a decorative screw and the like are attached, so that it can be unnecessary to drill the prepared hole for fixing the anchor screw AB1 into the concrete, so that the anchor screw AB1 can be prevented from being turned even when being given the turning force, and so that the number of the man-hours for the work can be reduced. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor screw, and in particular, it is not necessary to form a prepared hole for fixing the anchor screw to concrete, and it may rotate even if a rotational force is applied. Related to anchor screws that have reduced man-hours.

[0002]

2. Description of the Related Art FIG. 14 is a diagram showing a work process until a conventional anchor screw is fixed to a concrete wall and a pipe is fixed to the concrete wall. First, as shown in FIG. 14 (A), cement is poured into a temporary frame (not shown),
A prepared hole 101a is formed in the solidified concrete wall 101 using a drill 102. Next, as shown in FIG. 14B, the anchor screw 103 is attached to the prepared hole 101a by the hammer 1
Hit with 04. Next, as shown in FIG. 14 (C), a decorative wood screw 105 is screwed into the anchor screw 103 to firmly fix it. Next, as shown in FIG. 14D, the support band 106 is temporarily fixed to the decorative wood screw 105 with the fixing screw 107, the pipe 108 is inserted into the support band 106, and then the pipe 108 is firmly fixed with the fixing screw 107.

[0003]

However, the conventional construction method has the following problems. 1. As described with reference to FIGS. 14 (A) to 14 (D), in the conventional method, it is necessary to drill a prepared hole in the concrete after the concrete is once formed, which is very expensive. . 2. When a large turning force is applied when the decorative wood screw 105 described in FIG. 14D is screwed in, the anchor screw 10
3 rotated in the concrete, and the decorative wood screw 105 and the support band 106 could not be firmly fixed.

3. In addition to hammering the anchor screw with the hammer, vibration may be applied to the building frame when a pilot hole is drilled, which may adversely affect the building frame. Further, when the drill is used, the rebar of the concrete pillar or the wall may be hit by the drill, which may damage the rebar. If the rebar hits the drill, it is necessary to open a prepared hole in another location and tap the anchor screw again. 4. When drilling holes in a high-rise building, a force is applied laterally to the worker's height direction, which may lead to an industrial accident due to unstable center of gravity of the worker, and the work itself. It was hard work.

Therefore, an object of the present invention is that it is not necessary to form a pilot hole for fixing the anchor screw to concrete, and it does not rotate even if a rotational force is applied, thus reducing the number of working steps. It is to provide anchor screws.

[0006]

In order to solve the above-mentioned problems, the invention of claim 1 forms a cylindrical body, and when cement is poured and solidified in a state in which one end of the cylindrical body can be exposed to the outside. In addition, rotation preventing means for preventing rotation of the anchor screw when the insertion member is rotationally inserted from the outside into the releasable portion is provided. The invention of claim 13 is a concrete pouring method using the anchor screw according to any one of claims 1 to 12,
A first step of inserting a fixing bolt insertion hole into the concrete temporary frame for inserting a fixing bolt for fixing the concrete temporary frame and the anchor screw, and after completion of assembling the concrete temporary frame, A second step in which the exposed portion of the anchor screw is made to correspond to the fixing bolt insertion hole, and after the second step, the fixing bolt is inserted into the exposed portion from the outside through the fixing bolt insertion hole. Then, a third step of fixing the concrete temporary frame and the anchor screw, a fourth step of pouring cement between the fixed concrete frame and the anchor screw, and a predetermined step after the completion of the cement pouring. A fifth step of removing the fixing bolt and the concrete temporary frame after a lapse of time is provided.

With this structure, for example, as shown in FIG. 1, the outer shapes of the fixing bolt screw-in portion 1 and the collar portion 2 are hexagonal as the rotation preventing means. And, for example, in FIG.
As shown in FIG. 3, the anchor screw AB1 is installed in advance in the temporary frame 11 for concrete, and the fixing bolt 13 is screwed into the fixing bolt screw-in portion 1 to fix the anchor screw AB1 and the temporary frame 1.
Since 1 is fixed, cement is poured in and solidified, and after solidification, the temporary frame etc. is removed and the decorative screws etc. are attached, so it is not necessary to drill a pilot hole to fix the anchors and screws to concrete. Therefore, it is possible to provide an anchor screw that does not rotate even if a rotational force is applied and that reduces the number of work steps.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the illustrated embodiments. Note that the same reference numerals are given to the parts that have already been described, and duplicate description will be omitted. (1) First Embodiment FIG. 1 is a sectional view and a side view of this embodiment. As shown in Figure 1, the steel anchor screw AB1
Hexagonal cylindrical fixing bolt screw-in portion 1 forming a "cylindrical body" and "exposure-possible portion" and forming a "non-circular shape", and the fixing bolt screw-in portion 1
It is composed of a hexagonal collar portion 2 having a larger diameter. A female screw 1a is formed on the inner surface of the fixing bolt threaded portion 1.

The reason why the fixing bolt screw-in portion 1 and the flange portion 2 are hexagonal is that the anchor screw AB1 does not rotate even if a rotational force is applied as an external force (described later). That is, the hexagonal shape constitutes the "rotation preventing means" and "non-circular shape". At the center of the left end surface of the collar portion 2, a setting female screw 2a, which is a "positioning means" into which a bolt is screwed, is screwed (described later). The external shape of the fixing bolt screw-in portion of each of the following embodiments and its modification is, except for a part, a hexagonal tubular shape, and the collar portion is a hexagonal shape larger than the fixing bolt screw-in portion.

Next, a method of using the anchor screw AB1 of this embodiment will be described with reference to FIGS. 2 (A) to 2 (D). First, as shown in FIG. 2 (A), two temporary frames 1 for pouring cement with a rebar 12 assembled in advance are sandwiched therebetween.
1 is fixed at a predetermined position, and the insertion hole 11a is formed in one temporary frame 11 while avoiding the position of the reinforcing bar 12. The diameter of the insertion hole 11a is smaller than the outer diameter 1b of the fixing bolt screw-in portion 1 of the anchor screw AB1 (described next). Note that 11
Reference numeral b denotes a temporary hole, which is provided when the temporary frame 11 is deep and is used when positioning the anchor screw AB1 facing the insertion hole 11a using a setting bolt 19 (described later).

Next, as shown in FIG. 2B, the anchor
The setting bolt 19 is screwed into the setting female screw 2a of the screw AB1 and is inserted through the temporary hole 11b, and the fixing bolt screw-in portion 1
The center of the opening is aligned with the center of the insertion hole 11a. Then, the fixing bolt 13 into which the thumbscrew 14 has been screwed in and the washer 15 has been inserted is screwed into the female screw 1a of the fixing bolt screw-in portion 1, and the anchor screw AB1 and the temporary frame 11 are tightened by the thumbscrew 14.
And tighten the fixing bolt 13 firmly. After this tightening is completed, the setting bolt 19 is removed, and the temporary hole 11b is covered with a lid so that the inner surface side of the temporary frame 11 becomes smooth (not shown).

By this tightening, the anchor screw AB1
Since the opening (exposure-possible part) of is adhered to the inner surface of the temporary frame 11 (the outer diameter 1b shown in FIG. 1 is larger than the diameter of the insertion hole 11a), when the cement 16 is poured in and tamped by a vibrator or the like, , Cement 16 is anchor screw AB
It does not get inside the 1. If the position of the insertion hole 11a is within the reach of the worker from above or below the temporary frame 11, the anchor screw AB1 and the insertion hole 11a can be manually positioned, so the temporary hole 11b is not necessary. is there.

Next, as shown in FIG. 2C, the cement 1
When 6 is tamped and left for a predetermined time to solidify to become concrete 16a, the thumbscrew 14 is loosened, the fixing bolt 13 is removed from the anchor screw AB1, and the temporary frame 11 is further removed. In this state, anchor the decorative screw 18
Screw it firmly into the female screw 1a of the screw AB1. Even if a large turning force is applied during this screwing in, the anchor
Since the fixing bolt screw-in portion 1 and the flange portion 2 of the screw AB1 are hexagonal in shape, the anchor screw AB1 does not rotate inside the concrete 16a. Next in FIG.
As shown in (D), attach the support band 106 to the decorative screw 18
Then, the pipe 108 is temporarily fixed with the fixing screw 107, the pipe 108 is inserted into the support band 106, and then the pipe 108 is firmly fixed with the fixing screw 107.

(2) First Modification of First Embodiment FIG. 3 is a sectional view of this modification. As shown in FIG. 3, the anchor screw AB2 has a coil spring 3 and a slider 4 which are “exposureable portion closing means” inside the fixing bolt screw-in portion 1 of the anchor screw AB1.
The left end of the coil spring 3 is fixed to the inner surface of the collar 2, and the slider 4 is fixed to the right end. The coil spring 3 has a free length and is configured so that the slider 4 closes the opening (exposureable portion) of the fixing bolt screw-in portion 1 (FIG. 3 shows a state in which the opening is closed). As the material of the slider 4, a slippery synthetic resin is suitable. With this configuration, even after the concrete pouring is completed, even if the fixing bolt 13 is left unattached, the slider 4 closes the opening, so that dust or the like does not enter the inside of the fixing bolt screw-in portion 1.

(3) Second Modification of First Embodiment FIG. 4 is a view showing this modification, (A) is a sectional view,
(B) is sectional drawing of the usage method. 4 (A), (B)
As shown in FIG.
7a and an insertion cylinder 47c, and an insertion hole 47b through which the fixing bolt 13 is inserted is formed in the center of the stabilizer 47a. The outer shape of the insertion tube 47c is hexagonal, and has a diameter that allows it to be fitted onto the fixing bolt screw-in portion 1 of the anchor screw AB1.

The stable securing cylinder 47 is used when the anchor screw AB1 becomes unstable when facing the insertion hole 11a of the temporary frame 11 because the outer diameter of the fixing bolt screw-in portion 1 is small. Is. That is, as shown in FIG. 4B, the fixing bolt screw-in portion 1 of the anchor screw AB1 is inserted into the stable securing cylinder 47 in advance. In this inserted state, the setting bolt 19 is screwed into the setting female screw 2a to insert the insertion hole 11a.
Facing each other, and firmly fixed with the fixing bolt 13. If the temporary frame 11 is shallow, an operator may manually make the opening of the anchor screw AB1 in which the stable securing tube 47 has been inserted face the insertion hole 11a. If you do this,
Even the anchor screw having the thin fixing bolt screw-in portion 1 can be reliably positioned with respect to the insertion hole 11a.

(4) Example of use of the first embodiment and its modified example in a building FIG. 5 shows that the anchor screws of this embodiment and its modified example are used on the first and second floors of a concrete building. do it,
It is a figure at the time of fixing various members. The left side of FIG. 5 shows a case where the pipe 108 is vertically attached to the outer wall, the lower center of FIG. 5 shows the case where the pipe 108 is horizontally attached from the ceiling of the first floor, and the upper center of FIG. Shows the case where timber is attached to the floor on the second floor by Zungiri bolts. If the end face of the opening of the anchor screw AB1 is colored with a color different from that of concrete (for example, red), the worker can easily find the location of the anchor screw AB1.

(5) Second Embodiment FIGS. 6A and 6B are views showing the present embodiment, where FIG. 6A is a sectional view before uniting and FIG. 6B is a sectional view after uniting. FIG. 6 (A),
As shown in (B), the anchor screw AB3 is composed of a steel main body portion 20 and a synthetic resin auxiliary portion 25 that is a "first auxiliary member". The auxiliary portion 25 is screwed onto the main body portion 20. Use it in a state that it is inserted and united. The main body portion 20 is composed of a fixing bolt screw-in portion 21 having a large opening (exposureable portion) and a flange portion 22, and a female screw 21 a is formed on the inner surface of the fixing bolt screw-in portion 21. A female screw 22a for setting is formed on the left side surface of the collar portion 22. The auxiliary portion 25 has a male screw 2 on the outer peripheral surface.
Cylindrical screw-in portion 26 having a sealed front end portion forming 6a
And a stopper portion 27 that prevents excessive screwing when the auxiliary portion 25 is screwed in, and a taper 27a is formed on the outer peripheral surface of the stopper portion 27. The shape of the stopper portion 27 is circular.

A female screw 26b is formed on the inner surface of the auxiliary portion 25, and a circular fixing bolt screwing portion 25a for screwing the fixing bolt 13 is formed at the center of the stopper portion 27 so as to communicate with the female screw 26b. Two stopper holes 27b for removal are formed on the right end surface of the stopper portion 27 (described later). If the color of the auxiliary portion 25 is set to a color that can be easily distinguished from the color of concrete (for example, red or black), the auxiliary portion 2 described next will be described.
When removing 5, the auxiliary part 25 can easily be distinguished from the color of the concrete.

Next, a method of using the anchor screw AB3 of this embodiment will be described with reference to FIGS. 7 (A) to 7 (D). First, as shown in FIG. 7 (A), two temporary frames 1 for pouring cement with a pre-assembled reinforcing bar 12 interposed therebetween.
Fix 1 in place. The insertion hole 11a is provided in the one temporary frame 11 while avoiding the position of the reinforcing bar 12. The diameter of the insertion hole 11a is smaller than the outer diameter of the stopper portion 27. 11
b is a temporary hole.

Next, as shown in FIG. 7B, the main body 20
With the anchor screw AB3 (FIG. 6B) in which the auxiliary screw 25 and the auxiliary portion 25 are united, the setting bolt 19 is screwed into the setting female screw 22a of the anchor screw AB3, and the temporary hole 11
Insert through b, and the center of the opening of the stopper portion 27 is aligned with the center of the insertion hole 11a. And pre-screw 1
4 and screw the fixing bolt 13 into which the washer 15 has been inserted,
The fixing bolt is screwed into the female screw 26b of the screw-in portion 25a, and the anchor screw AB3, the temporary frame 11, and the fixing bolt 13 are firmly tightened with the thumbscrew 14. After tightening, temporary hole 1
Filling 1b is the same as in the case of the first embodiment. By this tightening, the opening (exposureable portion) of the stopper portion 27 is brought into close contact with the inner surface of the temporary frame 11, so when the cement 16 is poured and solidified by a vibrator or the like, the cement 16 enters the inside of the anchor screw AB3. There is no such thing. After the cement 16 is compacted and left for a predetermined time, it is solidified to become concrete 16a.

Next, as shown in FIG. 7C, the thumbscrew 14
Loosen and remove the fixing bolt 13 from the anchor screw AB3, and further remove the temporary frame 11. Even if the temporary frame 11 is left in a detached state, the auxiliary portion 25 having one end sealed is still screwed into the main body portion 20, so that dust or the like may enter the main body portion 20. Absent. Then, depending on the needs of the working process (for example, mounting of a curran), T
The auxiliary wrench 25 is removed by hooking the letter wrench 28 in the hooking hole 27b of the stopper portion 27 and rotating it. At the time of this removal, the stopper portion 27 is circular, and the taper 27
Since a is formed, the auxiliary portion 25 can be easily rotated. Further, at the time of this removal, if the color of the auxiliary portion 25 (for example, red) is set to a color that can be easily distinguished from the color of concrete (for example, white) as described above, the worker can easily locate the anchor screw AB3. Can be confirmed. Next, as shown in FIG. 7D, the decorative screw 18A having a thick screw-in screw is attached to the female screw 21a of the main body 20.
Screw firmly into. Then, a pipe (not shown) is firmly fixed with a support band.

(6) First Modification of Second Embodiment FIGS. 8A and 8B are views showing this modification, where FIG. 8A is a sectional view before uniting and FIG. 8B is a sectional view after uniting. . FIG. 8 (A),
As shown in (B), the anchor screw AB4 is composed of a steel main body portion 30 and a synthetic resin auxiliary portion 35 which is a "first auxiliary member". The main body portion 30 is screwed with the auxiliary portion 35. Use it in a state that it is inserted and united. The main body 30 is the outer cylinder 3
1, an inner cylinder 32, and a collar portion 33. An inner screw 31a is formed on the inner surface of the outer cylinder 31, and a female screw 32 is formed on the inner surface of the inner cylinder 32.
a is formed. 33a is a setting female screw. Auxiliary part 3
Reference numeral 5 includes a cylindrical screw-in portion 36 having a male screw 36a formed on the outer peripheral surface and an open front end, and a stopper portion 37. A fixing bolt screw-in portion 37a is formed at the center of the right end surface of the stopper portion 37. , Two hook holes 37b are formed on the outside of the fixing bolt screw-in portion 37a, and a taper 37c is formed on the outer peripheral surface.
To form.

Next, since the method of using the anchor screw AB4 of this modification is almost the same as that of the second embodiment shown in FIGS. 7A to 7D, detailed description thereof will be omitted. Also in the case of this modification, as in the case of the second embodiment, if the auxiliary portion 35 is left in the screwed state after the temporary frame 11 is removed, dust or the like will not enter the main body portion 30.

(7) Second Modification of Second Embodiment FIGS. 9A and 9B are views showing this modification, where FIG. 9A is a sectional view before uniting and FIG. 9B is a sectional view after uniting. . FIG. 9 (A),
As shown in (B), the anchor screw AB5 includes a steel main body 40 and a synthetic resin auxiliary portion 45 that is a "first auxiliary member".
It is used in the state where it is screwed in and united. The main body portion 40 is composed of a fixing bolt screw-in portion 41 and a flange portion 42. The fixing bolt screw-in portion 41 has a female screw 41a formed on its inner surface and an outer peripheral surface having a male screw 41b. 42a is a setting female screw. The female screw 4 is provided on the left inner circumference of the auxiliary portion main body 46 of the auxiliary portion 45.
6a is formed, and a fixing bolt screw-in portion 4 of a female screw is formed on the inner circumference on the right side.
6b is formed, and two hook holes 46c are further formed outside the fixing and fixing bolt screw-in portion 46b.

Next, since the method of using the anchor screw AB5 of this modification is almost the same as that of the second embodiment shown in FIGS. 7A to 7D, detailed description thereof will be omitted. Also in the case of this modification, if the auxiliary portion 45 is left in the screw-in state after the temporary frame 11 is removed, dust and the like enter the inside of the fixing bolt screw-in portion 41 as in the second embodiment. Never.

(8) Third Embodiment FIGS. 10A and 10B are views showing the present embodiment, where FIG. 10A is a sectional view before uniting and FIG. 10B is a sectional view after uniting. Figure 10
As shown in (A) and (B), anchor screw AB6
Is composed of a first auxiliary portion 50 and a second auxiliary portion 53 which are steel “screw-in bodies”, and a main body portion 58 which is a “cylindrical main body” made of synthetic resin. The first and second auxiliary parts 50 and 53 are used by being screwed into each other and combined. The first and second auxiliary parts 50 and 53 have the same configuration,
Each is composed of a fixing bolt screw-in portion 51 and a hexagonal flange portion 52 which are cylindrical "insertion member screwing portions", and a female screw 51a is formed on the inner surface of the fixing bolt screw-in portion 51.
A male screw 51b is formed on the outer peripheral surface. The collar portion 52 is hexagonal and has a taper 52a on the outer peripheral surface. The outer shape of the main body portion 58 has a hexagonal tubular shape, and a female screw 58a is formed on the inner peripheral surface thereof.

Next, the method of using the anchor screw AB6 of this embodiment is substantially the same as that of FIGS. 2A to 2D of the first embodiment, and therefore detailed description thereof is omitted. According to this embodiment, the fixing bolt 1 is attached to both the left and right body parts in the combined state.
3 can be screwed in, so the operator can insert either side into the insertion hole 11a.
Can be made to face each other, improving workability. Further, when positioning the insertion hole 11a of the temporary frame and the anchor screw AB6, the female screw 51a on the side opposite to the exposed portion may be used.

(9) Fourth Embodiment FIGS. 11A and 11B are views showing this embodiment, where FIG. 11A is a sectional view before uniting and FIG. 11B is a sectional view after uniting. Figure 11
As shown in (A) and (B), the anchor screw AB1 is the same as that described in the first embodiment, and the anchor screw AB1 has a "second auxiliary member" and a "third auxiliary member". The adapter 60, which is a "member", is used by being screwed in and integrated. The adapter 60 is composed of a cylindrical anchor screw screw-in portion 62 and a hexagonal fixing bolt screw-in portion 61. A male screw 62a is formed on the outer peripheral surface of the anchor screw screw-in portion 62 so that the fixing bolt screw-in portion 61 is A female screw 61a is formed on the peripheral surface. Anchor screw AB1 fixing bolt threaded part 1
And the inner diameter of the fixing bolt screw-in portion 61 are the same inner diameter. That is, the case of the same inner diameter is the "second auxiliary member", and the case where the inner diameter of the fixing bolt screw-in portion 1 and the inner diameter of the fixing bolt screw-in portion 61 are different is the "third auxiliary member".
Is.

Next, a method of using the anchor screw AB1 and the adapter 60 of this embodiment will be described. First, FIG.
As shown in (B), the adapter 60 is screwed into the anchor screw AB1 to be in a united state. In this united state, the first
The pipe 108 is fixed by the same method of use as described in FIGS. According to this embodiment, for example, when the dimension of the anchor screw AB1 is short, the fixing bolt screw-in portion 61 can be extended, and the diameter of the fixing bolt screw-in portion 61 can be changed to fix various thicknesses. The bolt 13 can be used.

(10) Fifth Embodiment FIG. 12 is a view showing this embodiment, (A) is a perspective view, (B) is a sectional view when cement is poured,
(C) is a cross-sectional view when the temporary frame is removed and tiles are attached. As shown in FIGS. 12 (A) and 12 (B), the anchor screw AB7 has a rectangular flange portion 72 formed at the rear end of the cylindrical fixing bolt screw-in portion 71.
Two stoppers 71a, which are "positioning means", are formed in a protruding manner by projecting on the tip side of 1. Reference numeral 71b is a female screw into which the decorative screw 18 (see FIG. 2C) is screwed.
a is a female screw for setting.

When the anchor screw AB7 is used, as shown in FIGS. 12B and 12C, the temporary frame 11 is used.
The tip of the fixing bolt threaded portion 71 is inserted into the insertion hole 11a until the stopper 71a hits the temporary frame 11, and cement 16 is poured and solidified in this state. In order to fix the temporary frame 11 and the anchor screw AB7 during tamping, for example, a male screw is formed on the outer peripheral surface of the opening of the fixing bolt screw-in portion 71, and a hexagon nut is screwed on the male screw. Turn on,
The temporary frame 11 and the anchor screw AB7 may be fixed (not shown). After leaving for a predetermined time, remove the temporary frame 11,
The tile 73 is attached, and the decorative screw 18 (not shown) is firmly screwed into the fixing bolt screw-in portion 71.
08 is fixed by the support band 106. In this way, the stopper 71a can easily secure the thickness required for sticking tiles and the like.

(11) Modified Example of Anti-Rotation Means In each of the above embodiments, the anti-rotation means (flange) was provided at the rear end of the fixing bolt screw-in portion (on the side of the center of the poured cement). FIG. 13A shows a case where the hexagonal rotation preventing means (rotation preventing projection 82) is provided substantially in the center of the fixing bolt screw-in portion 81. FIG. 13B shows a case where hexagonal rotation preventing means (rotation preventing projection 92) is provided on the opening side of the fixing bolt screw-in portion 91. Reference numeral 93 is a rotation prevention pin. FIG. 13C shows a case where a male screw 91a is formed at the rear end portion of the fixing bolt screw-in portion 91 and a rotation preventing means (hexagonal nut 94) is screwed into the male screw 91a.

In each of the above-mentioned embodiments, the outer shape of the anchor screw is mainly a hexagon, but, for example, a quadrangle,
The rotation of the anchor screw can be prevented even if it is "non-circular" such as an octagon. Also, instead of "non-circular",
A protrusion such as a roll may be provided on the outer peripheral surface of the circular anchor screw. Furthermore, a fifth embodiment (FIG. 1) as “positioning means” for positioning with respect to the temporary frame for concrete.
Although the case of the stopper 71a of 2) has been described, it goes without saying that the stopper can be provided in the cases of FIGS.

[0035]

As described above, according to the present invention, the following effects can be exhibited. For example, as shown in FIG. 1, the fixing bolt screw-in portion 1 and the collar portion 2 are formed as hexagonal shapes as rotation preventing means. Then, for example, as shown in FIG. 2, the anchor screw AB1 is previously installed inside the temporary frame for concrete 11, and the fixing bolt 13 is screwed into the fixing bolt screw-in portion 1 to fix the anchor screw AB1 and the temporary frame 11. Then, pour the cement and solidify,
Since the temporary frame etc. are removed after solidification and the decorative screws etc. are attached, it is not necessary to make a pilot hole to fix the anchor screw to concrete, and it will rotate even if a rotational force is applied. It is possible to provide an anchor screw with less work man-hours.

[Brief description of drawings]

FIG. 1 is a cross-sectional view and a side view showing a first embodiment of the present invention.

FIG. 2 is a process drawing showing the method of using the first embodiment.

FIG. 3 is a cross-sectional view of a first modification example of the first embodiment.

4A and 4B are views showing a second modification of the first embodiment, in which FIG. 4A is a sectional view and FIG. 4B is a sectional view of a method of use.

FIG. 5 is a diagram showing an example of use of the first embodiment and its modification in a building.

6A and 6B are views showing the second embodiment, wherein FIG. 6A is a sectional view before uniting and FIG. 6B is a sectional view after uniting.

FIG. 7 is a process drawing showing the method of using the second embodiment.

8A and 8B are views showing a first modification of the second embodiment, in which FIG. 8A is a sectional view before uniting and FIG. 8B is a sectional view after uniting.

9A and 9B are views showing a second modified example of the second embodiment, in which FIG. 9A is a sectional view before uniting and FIG. 9B is a sectional view after uniting.

FIG. 10 is a view showing the third embodiment, including (A).
Is a cross-sectional view before uniting, and (B) is a cross-sectional view after uniting.

FIG. 11 is a view showing the fourth embodiment, including (A).
Is a cross-sectional view before uniting, and (B) is a cross-sectional view after uniting.

FIG. 12 is a view showing the fifth embodiment of the present invention, FIG.
Is a perspective view, (B) is a cross-sectional view when cement is poured, and (C) is a cross-sectional view when a temporary frame is removed and tiles are attached.

FIG. 13 is a view showing a modified example of the rotation preventing means in each embodiment, where (A) shows the rotation preventing means when the rotation preventing means is provided substantially in the center of the fixing bolt screwing portion, and (B) shows the rotation preventing means. When the fixing bolt is provided at the front end and the rear end of the screw-in portion, (C) is a case where the tile is attached after positioning.

FIG. 14 is a process diagram showing a method of using a conventional anchor screw.

[Explanation of symbols]

AB1-AB10 Anchor screws 1 Fixing bolt threaded part 1a female screw 1b outer diameter 2 Tsuba 2a Female screw for setting 3 coil spring 4 slider 11 temporary frame 11a insertion hole 11b Temporary hole 12 rebar 13 Fixing bolt 14 thumbscrew 15 washers 16 cement 16a concrete 18 cosmetic screws 20 body 25 Auxiliary section 47 Stable securing cylinder 50 First auxiliary section 53 Second auxiliary section 58 main body 60 adapter 71a stopper 73 tiles 106 support band 107 fixing screw 108 pipe

Claims (13)

[Claims] 1. When a cement is poured and solidified in a state where a tubular body is formed so that one end of the tubular body can be exposed to the outside, when the insertion member is rotationally inserted from the outside into the exposeable portion, An anchor screw characterized by being provided with a rotation preventing means for preventing rotation of the anchor screw. 2. The anchor screw according to claim 1, wherein the rotation preventing means has a non-circular outer peripheral shape of the anchor screw. 3. The anchor screw according to claim 1, wherein the rotation preventing means is provided with a collar portion having an outer diameter larger than an outer diameter of the anchor screw. 4. The anchor screw according to any one of claims 1 to 3, wherein a female screw to be screwed into an insertion member from the outside is formed on an inner peripheral surface of the tubular body. Anchor screw. 5. The anchor screw according to any one of claims 1 to 4, further comprising a positioning member for positioning the concrete temporary frame on the exposed portion side. Anchor screw to do. 6. The anchor screw according to any one of claims 1 to 5, wherein when the insertion member is inserted into the inside of the cylindrical body from the side of the releasable portion, the anchor screw is compressed. An anchor screw, which is provided with an exposing-possible-portion closing means that extends to close the exposure-possible portion when the insertion member is removed. 7. The anchor screw according to any one of claims 1 to 6, further comprising a positioning means for positioning with respect to the temporary frame for concrete, on the opposite side of the exposed portion of the tubular body. Anchor screw characterized by that. 8. The anchor screw according to any one of claims 1 to 6, further comprising a first auxiliary member to be inserted into the exposed portion side, wherein the first auxiliary member is provided. An anchor screw, which has a cylindrical body with one end side sealed and is configured such that the insertion member can be inserted from the other end side. 9. The anchor screw according to any one of claims 1 to 6, further comprising a second auxiliary member to be inserted into the exposed portion, wherein the second auxiliary member is a cylinder. An anchor screw, which is in the form of a body, one end side of which can be inserted into the releasable portion, and the other end side of which is the same as the inner diameter of the releasable portion. 10. The anchor screw according to any one of claims 1 to 6, further comprising a third auxiliary member to be inserted into the exposed portion, wherein the third auxiliary member is a cylinder. An anchor screw, which is in the form of a body, one end side of which can be inserted into the releasable portion, and the other end side of which has an inner diameter different from the inner diameter of the releasable portion. 11. The anchor screw according to any one of claims 8 to 10, wherein the other end side of the first, second, and third auxiliary members is colored differently from the color of concrete. Anchor screw characterized by doing. 12. A threaded body formed by forming an external thread on an outer peripheral surface and forming an insertion member screwing portion into which an insertion member is externally screwed, and an outer peripheral surface having a non-circular shape and an inner peripheral surface. An anchor screw, comprising: a cylindrical main body having a female screw formed to be screwed into the male screw, and the screw-in bodies are respectively screwed into both ends of the cylindrical main body. . 13. A concrete placing method using the anchor screw according to any one of claims 1 to 12, wherein the concrete temporary frame and the anchor screw are provided on a concrete temporary frame. A first step of inserting a fixing bolt insertion hole for inserting a fixing bolt for fixing the fixing bolt, and associating the exposed portion of the anchor screw with the fixing bolt insertion hole after the assembly of the concrete temporary frame is completed. A second step, and after the second step, the fixing bolt is externally inserted into the exposed portion through a fixing bolt insertion hole to fix the concrete temporary frame and the anchor screw. A step, a fourth step of injecting cement between the fixed concrete temporary frame and the anchor screw, and a predetermined time after the completion of injecting the cement, Serial concrete beating method using the anchor screws, characterized in that a fifth step of removing the fixing bolts and concrete provisional frame.